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gtk2/gtk/gtkwindow.c
Matthias Clasen b55195fa2e Move the idle sizer to GtkWindow 
This was only living in gtkcontainer.c for historic
reasons. Move it closer to where it belongs, and
rename it from 'idle' to 'layout', since it is
really about the layout phase of the frame clock,
nowadays.
2020-04-20 16:30:45 -04:00

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/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "config.h"
#include "gtkwindowprivate.h"
#include "gtkaccelgroupprivate.h"
#include "gtkapplicationprivate.h"
#include "gtkbox.h"
#include "gtkbuildable.h"
#include "gtkbuilderprivate.h"
#include "gtkbutton.h"
#include "gtkcheckbutton.h"
#include "gtkcsscornervalueprivate.h"
#include "gtkcssiconthemevalueprivate.h"
#include "gtkcsscolorvalueprivate.h"
#include "gtkcssshadowvalueprivate.h"
#include "gtkcssstylepropertyprivate.h"
#include "gtkdroptargetasync.h"
#include "gtkeventcontrollerlegacy.h"
#include "gtkeventcontrollerkey.h"
#include "gtkeventcontrollermotion.h"
#include "gtkgesturedrag.h"
#include "gtkgestureclick.h"
#include "gtkgestureprivate.h"
#include "gtkheaderbarprivate.h"
#include "gtkicontheme.h"
#include "gtkintl.h"
#include "gtkmain.h"
#include "gtkmarshalers.h"
#include "gtkmessagedialog.h"
#include "gtkpointerfocusprivate.h"
#include "gtkpopovermenuprivate.h"
#include "gtkmodelbuttonprivate.h"
#include "gtkseparator.h"
#include "gtkprivate.h"
#include "gtkroot.h"
#include "gtknative.h"
#include "gtksettings.h"
#include "gtkshortcut.h"
#include "gtkshortcutcontroller.h"
#include "gtkshortcutmanager.h"
#include "gtkshortcuttrigger.h"
#include "gtksnapshot.h"
#include "gtkstylecontextprivate.h"
#include "gtktypebuiltins.h"
#include "gtkwidgetprivate.h"
#include "gtkwindowgroup.h"
#include "gtkpopovermenubarprivate.h"
#include "gtkcssboxesimplprivate.h"
#include "a11y/gtkwindowaccessibleprivate.h"
#include "a11y/gtkcontaineraccessibleprivate.h"
#include "inspector/window.h"
#include "gdk/gdktextureprivate.h"
#include "gdk/gdk-private.h"
#include "gdk/gdkprofilerprivate.h"
#include <cairo-gobject.h>
#include <errno.h>
#include <graphene.h>
#include <limits.h>
#include <string.h>
#include <stdlib.h>
#ifdef GDK_WINDOWING_X11
#include "x11/gdkx.h"
#endif
#ifdef GDK_WINDOWING_WIN32
#include "win32/gdkwin32.h"
#endif
#ifdef GDK_WINDOWING_WAYLAND
#include "wayland/gdkwayland.h"
#endif
#ifdef GDK_WINDOWING_BROADWAY
#include "broadway/gdkbroadway.h"
#endif
/**
* SECTION:gtkwindow
* @title: GtkWindow
* @short_description: Toplevel which can contain other widgets
*
* A GtkWindow is a toplevel window which can contain other widgets.
* Windows normally have decorations that are under the control
* of the windowing system and allow the user to manipulate the window
* (resize it, move it, close it,...).
*
* # GtkWindow as GtkBuildable
*
* The GtkWindow implementation of the #GtkBuildable interface supports a
* custom <accel-groups> element, which supports any number of <group>
* elements representing the #GtkAccelGroup objects you want to add to
* your window (synonymous with gtk_window_add_accel_group().
*
* An example of a UI definition fragment with accel groups:
* |[
* <object class="GtkWindow">
* <accel-groups>
* <group name="accelgroup1"/>
* </accel-groups>
* </object>
*
* ...
*
* <object class="GtkAccelGroup" id="accelgroup1"/>
* ]|
*
* The GtkWindow implementation of the #GtkBuildable interface supports
* setting a child as the titlebar by specifying “titlebar” as the “type”
* attribute of a <child> element.
*
* # CSS nodes
*
* |[<!-- language="plain" -->
* window.background
* ├── decoration
* ├── <titlebar child>.titlebar [.default-decoration]
* ╰── <child>
* ]|
*
* GtkWindow has a main CSS node with name window and style class .background,
* and a subnode with name decoration.
*
* Style classes that are typically used with the main CSS node are .csd (when
* client-side decorations are in use), .solid-csd (for client-side decorations
* without invisible borders), .ssd (used by mutter when rendering server-side
* decorations). GtkWindow also represents window states with the following
* style classes on the main node: .tiled, .maximized, .fullscreen. Specialized
* types of window often add their own discriminating style classes, such as
* .popup or .tooltip.
*
* GtkWindow adds the .titlebar and .default-decoration style classes to the
* widget that is added as a titlebar child.
*/
#define MENU_BAR_ACCEL GDK_KEY_F10
#define RESIZE_HANDLE_SIZE 20
#define MNEMONICS_DELAY 300 /* ms */
#define NO_CONTENT_CHILD_NAT 200
/* In case the content (excluding header bar and shadows) of the window
* would be empty, either because there is no visible child widget or only an
* empty container widget, we use NO_CONTENT_CHILD_NAT as natural width/height
* instead.
*/
typedef struct
{
GtkWidget *attach_widget;
GtkWidget *default_widget;
GtkWidget *focus_widget;
GtkWindow *transient_parent;
GtkWindowGeometryInfo *geometry_info;
GtkWindowGroup *group;
GdkDisplay *display;
GtkApplication *application;
gchar *startup_id;
gchar *title;
guint keys_changed_handler;
guint32 initial_timestamp;
guint16 configure_request_count;
guint mnemonics_display_timeout_id;
gint scale;
gint title_height;
GtkWidget *title_box;
GtkWidget *titlebar;
GtkWidget *popup_menu;
GdkMonitor *initial_fullscreen_monitor;
guint edge_constraints;
GdkSurfaceState state;
/* The following flags are initially TRUE (before a window is mapped).
* They cause us to compute a configure request that involves
* default-only parameters. Once mapped, we set them to FALSE.
* Then we set them to TRUE again on unmap (for position)
* and on unrealize (for size).
*/
guint need_default_size : 1;
guint builder_visible : 1;
guint configure_notify_received : 1;
guint decorated : 1;
guint deletable : 1;
guint destroy_with_parent : 1;
guint fullscreen_initially : 1;
guint has_user_ref_count : 1;
guint minimize_initially : 1;
guint is_active : 1;
guint maximize_initially : 1;
guint mnemonics_visible : 1;
guint focus_visible : 1;
guint modal : 1;
guint resizable : 1;
guint transient_parent_group : 1;
guint gravity : 5; /* GdkGravity */
guint csd_requested : 1;
guint client_decorated : 1; /* Decorations drawn client-side */
guint use_client_shadow : 1; /* Decorations use client-side shadows */
guint maximized : 1;
guint fullscreen : 1;
guint tiled : 1;
guint hide_on_close : 1;
guint in_emit_close_request : 1;
guint restyle_pending : 1;
GdkSurfaceTypeHint type_hint;
guint resize_handler;
GtkGesture *click_gesture;
GtkGesture *drag_gesture;
GtkGesture *bubble_drag_gesture;
GtkEventController *key_controller;
GtkEventController *application_shortcut_controller;
GtkCssNode *decoration_node;
GdkSurface *surface;
GskRenderer *renderer;
cairo_region_t *extra_input_region;
GList *foci;
GtkConstraintSolver *constraint_solver;
GdkToplevelLayout *layout;
GdkCursor *resize_cursor;
} GtkWindowPrivate;
enum {
SET_FOCUS,
ACTIVATE_FOCUS,
ACTIVATE_DEFAULT,
KEYS_CHANGED,
ENABLE_DEBUGGING,
CLOSE_REQUEST,
LAST_SIGNAL
};
enum {
PROP_0,
/* Normal Props */
PROP_TITLE,
PROP_RESIZABLE,
PROP_MODAL,
PROP_DEFAULT_WIDTH,
PROP_DEFAULT_HEIGHT,
PROP_DESTROY_WITH_PARENT,
PROP_HIDE_ON_CLOSE,
PROP_ICON_NAME,
PROP_DISPLAY,
PROP_DECORATED,
PROP_DELETABLE,
PROP_TRANSIENT_FOR,
PROP_APPLICATION,
PROP_DEFAULT_WIDGET,
PROP_FOCUS_WIDGET,
/* Readonly properties */
PROP_IS_ACTIVE,
/* Writeonly properties */
PROP_STARTUP_ID,
PROP_MNEMONICS_VISIBLE,
PROP_FOCUS_VISIBLE,
PROP_IS_MAXIMIZED,
LAST_ARG
};
static GParamSpec *window_props[LAST_ARG] = { NULL, };
/* Must be kept in sync with GdkSurfaceEdge ! */
typedef enum
{
GTK_WINDOW_REGION_EDGE_NW,
GTK_WINDOW_REGION_EDGE_N,
GTK_WINDOW_REGION_EDGE_NE,
GTK_WINDOW_REGION_EDGE_W,
GTK_WINDOW_REGION_EDGE_E,
GTK_WINDOW_REGION_EDGE_SW,
GTK_WINDOW_REGION_EDGE_S,
GTK_WINDOW_REGION_EDGE_SE,
GTK_WINDOW_REGION_CONTENT,
GTK_WINDOW_REGION_TITLE,
} GtkWindowRegion;
typedef struct
{
gchar *icon_name;
guint realized : 1;
guint using_default_icon : 1;
guint using_themed_icon : 1;
} GtkWindowIconInfo;
typedef struct {
GdkGeometry geometry; /* Last set of geometry hints we set */
GdkSurfaceHints flags;
GdkRectangle configure_request;
} GtkWindowLastGeometryInfo;
struct _GtkWindowGeometryInfo
{
/* from last gtk_window_resize () - if > 0, indicates that
* we should resize to this size.
*/
gint resize_width;
gint resize_height;
/* Default size - used only the FIRST time we map a window,
* only if > 0.
*/
gint default_width;
gint default_height;
GtkWindowLastGeometryInfo last;
};
static void gtk_window_constructed (GObject *object);
static void gtk_window_dispose (GObject *object);
static void gtk_window_finalize (GObject *object);
static void gtk_window_destroy (GtkWidget *widget);
static void gtk_window_show (GtkWidget *widget);
static void gtk_window_hide (GtkWidget *widget);
static void gtk_window_map (GtkWidget *widget);
static void gtk_window_unmap (GtkWidget *widget);
static void gtk_window_realize (GtkWidget *widget);
static void gtk_window_unrealize (GtkWidget *widget);
static void gtk_window_size_allocate (GtkWidget *widget,
int width,
int height,
int baseline);
static gboolean gtk_window_close_request (GtkWindow *window);
static gboolean gtk_window_handle_focus (GtkWidget *widget,
GdkEvent *event,
double x,
double y);
static gboolean gtk_window_key_pressed (GtkWidget *widget,
guint keyval,
guint keycode,
GdkModifierType state,
gpointer data);
static gboolean gtk_window_key_released (GtkWidget *widget,
guint keyval,
guint keycode,
GdkModifierType state,
gpointer data);
static void surface_state_changed (GtkWidget *widget);
static void surface_size_changed (GtkWidget *widget,
int width,
int height);
static gboolean surface_render (GdkSurface *surface,
cairo_region_t *region,
GtkWidget *widget);
static gboolean surface_event (GdkSurface *surface,
GdkEvent *event,
GtkWidget *widget);
static void gtk_window_remove (GtkContainer *container,
GtkWidget *widget);
static void gtk_window_forall (GtkContainer *container,
GtkCallback callback,
gpointer callback_data);
static gint gtk_window_focus (GtkWidget *widget,
GtkDirectionType direction);
static void gtk_window_move_focus (GtkWidget *widget,
GtkDirectionType dir);
static void gtk_window_real_activate_default (GtkWindow *window);
static void gtk_window_real_activate_focus (GtkWindow *window);
static void gtk_window_keys_changed (GtkWindow *window);
static gboolean gtk_window_enable_debugging (GtkWindow *window,
gboolean toggle);
static void gtk_window_snapshot (GtkWidget *widget,
GtkSnapshot *snapshot);
static void gtk_window_unset_transient_for (GtkWindow *window);
static void gtk_window_transient_parent_realized (GtkWidget *parent,
GtkWidget *window);
static void gtk_window_transient_parent_unrealized (GtkWidget *parent,
GtkWidget *window);
static GtkWindowGeometryInfo* gtk_window_get_geometry_info (GtkWindow *window,
gboolean create);
static void gtk_window_move_resize (GtkWindow *window);
static gboolean gtk_window_compare_hints (GdkGeometry *geometry_a,
guint flags_a,
GdkGeometry *geometry_b,
guint flags_b);
static void gtk_window_constrain_size (GtkWindow *window,
GdkGeometry *geometry,
guint flags,
gint width,
gint height,
gint *new_width,
gint *new_height);
static void gtk_window_update_fixed_size (GtkWindow *window,
GdkGeometry *new_geometry,
gint new_width,
gint new_height);
static void gtk_window_compute_hints (GtkWindow *window,
GdkGeometry *new_geometry,
guint *new_flags);
static void gtk_window_compute_configure_request (GtkWindow *window,
GdkRectangle *request,
GdkGeometry *geometry,
guint *flags);
static void gtk_window_set_default_size_internal (GtkWindow *window,
gboolean change_width,
gint width,
gboolean change_height,
gint height);
static void update_themed_icon (GtkWindow *window);
static GList *icon_list_from_theme (GtkWindow *window,
const gchar *name);
static void gtk_window_realize_icon (GtkWindow *window);
static void gtk_window_unrealize_icon (GtkWindow *window);
static void update_window_buttons (GtkWindow *window);
static void get_shadow_width (GtkWindow *window,
GtkBorder *shadow_width);
static gboolean gtk_window_activate_menubar (GtkWidget *widget,
GVariant *args,
gpointer unused);
#ifdef GDK_WINDOWING_X11
static void gtk_window_on_theme_variant_changed (GtkSettings *settings,
GParamSpec *pspec,
GtkWindow *window);
#endif
static void gtk_window_set_theme_variant (GtkWindow *window);
static void gtk_window_activate_default_activate (GtkWidget *widget,
const char *action_name,
GVariant *parameter);
static void gtk_window_do_popup (GtkWindow *window,
GdkEvent *event);
static void gtk_window_css_changed (GtkWidget *widget,
GtkCssStyleChange *change);
static void gtk_window_state_flags_changed (GtkWidget *widget,
GtkStateFlags previous_state);
static void _gtk_window_set_is_active (GtkWindow *window,
gboolean is_active);
static void gtk_window_present_toplevel (GtkWindow *window);
static void gtk_window_update_toplevel (GtkWindow *window);
static GdkToplevelLayout * gtk_window_compute_layout (GtkWindow *window,
int min_width,
int min_height);
static GListStore *toplevel_list = NULL;
static guint window_signals[LAST_SIGNAL] = { 0 };
static gchar *default_icon_name = NULL;
static gboolean disable_startup_notification = FALSE;
static GQuark quark_gtk_window_icon_info = 0;
static GtkBuildableIface *parent_buildable_iface;
static void gtk_window_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_window_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
/* GtkBuildable */
static void gtk_window_buildable_interface_init (GtkBuildableIface *iface);
static void gtk_window_buildable_add_child (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *type);
static void gtk_window_buildable_set_buildable_property (GtkBuildable *buildable,
GtkBuilder *builder,
const gchar *name,
const GValue *value);
static void gtk_window_shortcut_manager_interface_init (GtkShortcutManagerInterface *iface);
/* GtkRoot */
static void gtk_window_root_interface_init (GtkRootInterface *iface);
static void gtk_window_native_interface_init (GtkNativeInterface *iface);
static void ensure_state_flag_backdrop (GtkWidget *widget);
static void unset_titlebar (GtkWindow *window);
static void on_titlebar_title_notify (GtkHeaderBar *titlebar,
GParamSpec *pspec,
GtkWindow *self);
static GtkWindowRegion get_active_region_type (GtkWindow *window,
gint x,
gint y);
G_DEFINE_TYPE_WITH_CODE (GtkWindow, gtk_window, GTK_TYPE_BIN,
G_ADD_PRIVATE (GtkWindow)
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
gtk_window_buildable_interface_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_NATIVE,
gtk_window_native_interface_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_SHORTCUT_MANAGER,
gtk_window_shortcut_manager_interface_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_ROOT,
gtk_window_root_interface_init))
static void
add_tab_bindings (GtkWidgetClass *widget_class,
GdkModifierType modifiers,
GtkDirectionType direction)
{
GtkShortcut *shortcut;
shortcut = gtk_shortcut_new_with_arguments (
gtk_alternative_trigger_new (gtk_keyval_trigger_new (GDK_KEY_Tab, modifiers),
gtk_keyval_trigger_new (GDK_KEY_KP_Tab, modifiers)),
gtk_signal_action_new ("move-focus"),
"(i)", direction);
gtk_widget_class_add_shortcut (widget_class, shortcut);
g_object_unref (shortcut);
}
static void
add_arrow_bindings (GtkWidgetClass *widget_class,
guint keysym,
GtkDirectionType direction)
{
guint keypad_keysym = keysym - GDK_KEY_Left + GDK_KEY_KP_Left;
gtk_widget_class_add_binding_signal (widget_class, keysym, 0,
"move-focus",
"(i)",
direction);
gtk_widget_class_add_binding_signal (widget_class, keysym, GDK_CONTROL_MASK,
"move-focus",
"(i)",
direction);
gtk_widget_class_add_binding_signal (widget_class, keypad_keysym, 0,
"move-focus",
"(i)",
direction);
gtk_widget_class_add_binding_signal (widget_class, keypad_keysym, GDK_CONTROL_MASK,
"move-focus",
"(i)",
direction);
}
static guint32
extract_time_from_startup_id (const gchar* startup_id)
{
gchar *timestr = g_strrstr (startup_id, "_TIME");
guint32 retval = GDK_CURRENT_TIME;
if (timestr)
{
gchar *end;
guint32 timestamp;
/* Skip past the "_TIME" part */
timestr += 5;
end = NULL;
errno = 0;
timestamp = g_ascii_strtoull (timestr, &end, 0);
if (errno == 0 && end != timestr)
retval = timestamp;
}
return retval;
}
static gboolean
startup_id_is_fake (const gchar* startup_id)
{
return strncmp (startup_id, "_TIME", 5) == 0;
}
static void
gtk_window_measure (GtkWidget *widget,
GtkOrientation orientation,
int for_size,
int *minimum,
int *natural,
int *minimum_baseline,
int *natural_baseline)
{
GtkWindow *window = GTK_WINDOW (widget);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget));
gboolean has_size_request = gtk_widget_has_size_request (widget);
int title_min_size = 0;
int title_nat_size = 0;
int child_min_size = 0;
int child_nat_size = 0;
GtkBorder window_border = { 0 };
if (priv->decorated && !priv->fullscreen)
{
get_shadow_width (window, &window_border);
if (orientation == GTK_ORIENTATION_HORIZONTAL)
for_size -= window_border.left + window_border.right;
else
for_size -= window_border.top + window_border.bottom;
if (priv->title_box != NULL &&
gtk_widget_get_visible (priv->title_box) &&
gtk_widget_get_child_visible (priv->title_box))
{
int size = for_size;
if (orientation == GTK_ORIENTATION_HORIZONTAL && for_size >= 0)
gtk_widget_measure (priv->title_box,
GTK_ORIENTATION_VERTICAL,
-1,
NULL, &size,
NULL, NULL);
gtk_widget_measure (priv->title_box,
orientation,
MAX (size, -1),
&title_min_size, &title_nat_size,
NULL, NULL);
}
}
if (child != NULL && gtk_widget_get_visible (child))
{
gtk_widget_measure (child,
orientation,
MAX (for_size, -1),
&child_min_size, &child_nat_size,
NULL, NULL);
if (child_nat_size == 0 && !has_size_request)
child_nat_size = NO_CONTENT_CHILD_NAT;
}
else if (!has_size_request)
{
child_nat_size = NO_CONTENT_CHILD_NAT;
}
if (orientation == GTK_ORIENTATION_HORIZONTAL)
{
title_min_size += window_border.left + window_border.right;
title_nat_size += window_border.left + window_border.right;
child_min_size += window_border.left + window_border.right;
child_nat_size += window_border.left + window_border.right;
*minimum = MAX (title_min_size, child_min_size);
*natural = MAX (title_nat_size, child_nat_size);
}
else
{
*minimum = title_min_size + child_min_size + window_border.top + window_border.bottom;
*natural = title_nat_size + child_nat_size + window_border.top + window_border.bottom;
}
}
static void
gtk_window_add (GtkContainer *container,
GtkWidget *child)
{
/* Insert the child's css node now at the end so the order wrt. decoration_node is correct */
gtk_css_node_insert_before (gtk_widget_get_css_node (GTK_WIDGET (container)),
gtk_widget_get_css_node (child),
NULL);
GTK_CONTAINER_CLASS (gtk_window_parent_class)->add (container, child);
}
static void
gtk_window_class_init (GtkWindowClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
quark_gtk_window_icon_info = g_quark_from_static_string ("gtk-window-icon-info");
if (toplevel_list == NULL)
toplevel_list = g_list_store_new (GTK_TYPE_WIDGET);
gobject_class->constructed = gtk_window_constructed;
gobject_class->dispose = gtk_window_dispose;
gobject_class->finalize = gtk_window_finalize;
gobject_class->set_property = gtk_window_set_property;
gobject_class->get_property = gtk_window_get_property;
widget_class->destroy = gtk_window_destroy;
widget_class->show = gtk_window_show;
widget_class->hide = gtk_window_hide;
widget_class->map = gtk_window_map;
widget_class->unmap = gtk_window_unmap;
widget_class->realize = gtk_window_realize;
widget_class->unrealize = gtk_window_unrealize;
widget_class->size_allocate = gtk_window_size_allocate;
widget_class->focus = gtk_window_focus;
widget_class->move_focus = gtk_window_move_focus;
widget_class->measure = gtk_window_measure;
widget_class->state_flags_changed = gtk_window_state_flags_changed;
widget_class->css_changed = gtk_window_css_changed;
widget_class->snapshot = gtk_window_snapshot;
container_class->add = gtk_window_add;
container_class->remove = gtk_window_remove;
container_class->forall = gtk_window_forall;
klass->activate_default = gtk_window_real_activate_default;
klass->activate_focus = gtk_window_real_activate_focus;
klass->keys_changed = gtk_window_keys_changed;
klass->enable_debugging = gtk_window_enable_debugging;
klass->close_request = gtk_window_close_request;
window_props[PROP_TITLE] =
g_param_spec_string ("title",
P_("Window Title"),
P_("The title of the window"),
NULL,
GTK_PARAM_READWRITE);
/**
* GtkWindow:startup-id:
*
* The :startup-id is a write-only property for setting window's
* startup notification identifier. See gtk_window_set_startup_id()
* for more details.
*/
window_props[PROP_STARTUP_ID] =
g_param_spec_string ("startup-id",
P_("Startup ID"),
P_("Unique startup identifier for the window used by startup-notification"),
NULL,
GTK_PARAM_WRITABLE);
window_props[PROP_RESIZABLE] =
g_param_spec_boolean ("resizable",
P_("Resizable"),
P_("If TRUE, users can resize the window"),
TRUE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
window_props[PROP_MODAL] =
g_param_spec_boolean ("modal",
P_("Modal"),
P_("If TRUE, the window is modal (other windows are not usable while this one is up)"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
window_props[PROP_DEFAULT_WIDTH] =
g_param_spec_int ("default-width",
P_("Default Width"),
P_("The default width of the window, used when initially showing the window"),
-1, G_MAXINT,
-1,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
window_props[PROP_DEFAULT_HEIGHT] =
g_param_spec_int ("default-height",
P_("Default Height"),
P_("The default height of the window, used when initially showing the window"),
-1, G_MAXINT,
-1,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
window_props[PROP_DESTROY_WITH_PARENT] =
g_param_spec_boolean ("destroy-with-parent",
P_("Destroy with Parent"),
P_("If this window should be destroyed when the parent is destroyed"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
window_props[PROP_HIDE_ON_CLOSE] =
g_param_spec_boolean ("hide-on-close",
P_("Hide on close"),
P_("If this window should be hidden when the user clicks the close button"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkWindow:mnemonics-visible:
*
* Whether mnemonics are currently visible in this window.
*
* This property is maintained by GTK+ based on user input,
* and should not be set by applications.
*/
window_props[PROP_MNEMONICS_VISIBLE] =
g_param_spec_boolean ("mnemonics-visible",
P_("Mnemonics Visible"),
P_("Whether mnemonics are currently visible in this window"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkWindow:focus-visible:
*
* Whether 'focus rectangles' are currently visible in this window.
*
* This property is maintained by GTK+ based on user input
* and should not be set by applications.
*/
window_props[PROP_FOCUS_VISIBLE] =
g_param_spec_boolean ("focus-visible",
P_("Focus Visible"),
P_("Whether focus rectangles are currently visible in this window"),
TRUE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkWindow:icon-name:
*
* The :icon-name property specifies the name of the themed icon to
* use as the window icon. See #GtkIconTheme for more details.
*/
window_props[PROP_ICON_NAME] =
g_param_spec_string ("icon-name",
P_("Icon Name"),
P_("Name of the themed icon for this window"),
NULL,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
window_props[PROP_DISPLAY] =
g_param_spec_object ("display",
P_("Display"),
P_("The display that will display this window"),
GDK_TYPE_DISPLAY,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
window_props[PROP_IS_ACTIVE] =
g_param_spec_boolean ("is-active",
P_("Is Active"),
P_("Whether the toplevel is the current active window"),
FALSE,
GTK_PARAM_READABLE);
/**
* GtkWindow:decorated:
*
* Whether the window should be decorated by the window manager.
*/
window_props[PROP_DECORATED] =
g_param_spec_boolean ("decorated",
P_("Decorated"),
P_("Whether the window should be decorated by the window manager"),
TRUE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkWindow:deletable:
*
* Whether the window frame should have a close button.
*/
window_props[PROP_DELETABLE] =
g_param_spec_boolean ("deletable",
P_("Deletable"),
P_("Whether the window frame should have a close button"),
TRUE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkWindow:transient-for:
*
* The transient parent of the window. See gtk_window_set_transient_for() for
* more details about transient windows.
*/
window_props[PROP_TRANSIENT_FOR] =
g_param_spec_object ("transient-for",
P_("Transient for Window"),
P_("The transient parent of the dialog"),
GTK_TYPE_WINDOW,
GTK_PARAM_READWRITE|G_PARAM_CONSTRUCT|G_PARAM_EXPLICIT_NOTIFY);
window_props[PROP_IS_MAXIMIZED] =
g_param_spec_boolean ("is-maximized",
P_("Is maximized"),
P_("Whether the window is maximized"),
FALSE,
GTK_PARAM_READABLE);
/**
* GtkWindow:application:
*
* The #GtkApplication associated with the window.
*
* The application will be kept alive for at least as long as it
* has any windows associated with it (see g_application_hold()
* for a way to keep it alive without windows).
*
* Normally, the connection between the application and the window
* will remain until the window is destroyed, but you can explicitly
* remove it by setting the :application property to %NULL.
*/
window_props[PROP_APPLICATION] =
g_param_spec_object ("application",
P_("GtkApplication"),
P_("The GtkApplication for the window"),
GTK_TYPE_APPLICATION,
GTK_PARAM_READWRITE|G_PARAM_STATIC_STRINGS|G_PARAM_EXPLICIT_NOTIFY);
window_props[PROP_DEFAULT_WIDGET] =
g_param_spec_object ("default-widget",
P_("Default widget"),
P_("The default widget"),
GTK_TYPE_WIDGET,
GTK_PARAM_READWRITE|G_PARAM_STATIC_STRINGS|G_PARAM_EXPLICIT_NOTIFY);
window_props[PROP_FOCUS_WIDGET] =
g_param_spec_object ("focus-widget",
P_("Focus widget"),
P_("The focus widget"),
GTK_TYPE_WIDGET,
GTK_PARAM_READWRITE|G_PARAM_STATIC_STRINGS|G_PARAM_EXPLICIT_NOTIFY);
g_object_class_install_properties (gobject_class, LAST_ARG, window_props);
/**
* GtkWindow::activate-focus:
* @window: the window which received the signal
*
* The ::activate-focus signal is a
* [keybinding signal][GtkBindingSignal]
* which gets emitted when the user activates the currently
* focused widget of @window.
*/
window_signals[ACTIVATE_FOCUS] =
g_signal_new (I_("activate-focus"),
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkWindowClass, activate_focus),
NULL, NULL,
NULL,
G_TYPE_NONE,
0);
/**
* GtkWindow::activate-default:
* @window: the window which received the signal
*
* The ::activate-default signal is a
* [keybinding signal][GtkBindingSignal]
* which gets emitted when the user activates the default widget
* of @window.
*/
window_signals[ACTIVATE_DEFAULT] =
g_signal_new (I_("activate-default"),
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkWindowClass, activate_default),
NULL, NULL,
NULL,
G_TYPE_NONE,
0);
/**
* GtkWindow::keys-changed:
* @window: the window which received the signal
*
* The ::keys-changed signal gets emitted when the set of accelerators
* or mnemonics that are associated with @window changes.
*/
window_signals[KEYS_CHANGED] =
g_signal_new (I_("keys-changed"),
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GtkWindowClass, keys_changed),
NULL, NULL,
NULL,
G_TYPE_NONE,
0);
/**
* GtkWindow::enable-debugging:
* @window: the window on which the signal is emitted
* @toggle: toggle the debugger
*
* The ::enable-debugging signal is a [keybinding signal][GtkBindingSignal]
* which gets emitted when the user enables or disables interactive
* debugging. When @toggle is %TRUE, interactive debugging is toggled
* on or off, when it is %FALSE, the debugger will be pointed at the
* widget under the pointer.
*
* The default bindings for this signal are Ctrl-Shift-I
* and Ctrl-Shift-D.
*
* Return: %TRUE if the key binding was handled
*/
window_signals[ENABLE_DEBUGGING] =
g_signal_new (I_("enable-debugging"),
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkWindowClass, enable_debugging),
NULL, NULL,
_gtk_marshal_BOOLEAN__BOOLEAN,
G_TYPE_BOOLEAN,
1, G_TYPE_BOOLEAN);
/**
* GtkWindow::close-request:
* @window: the window on which the signal is emitted
*
* The ::close-request signal is emitted when the user clicks on the close
* button of the window.
*
* Return: %TRUE to stop other handlers from being invoked for the signal
*/
window_signals[CLOSE_REQUEST] =
g_signal_new (I_("close-request"),
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkWindowClass, close_request),
_gtk_boolean_handled_accumulator, NULL,
NULL,
G_TYPE_BOOLEAN,
0);
/*
* Key bindings
*/
/**
* GtkWindow|default.activate:
*
* Activate the default widget.
*/
gtk_widget_class_install_action (widget_class, "default.activate", NULL,
gtk_window_activate_default_activate);
gtk_widget_class_add_binding_signal (widget_class, GDK_KEY_space, 0,
"activate-focus", NULL);
gtk_widget_class_add_binding_signal (widget_class, GDK_KEY_KP_Space, 0,
"activate-focus", NULL);
gtk_widget_class_add_binding_signal (widget_class, GDK_KEY_Return, 0,
"activate-default", NULL);
gtk_widget_class_add_binding_signal (widget_class, GDK_KEY_ISO_Enter, 0,
"activate-default", NULL);
gtk_widget_class_add_binding_signal (widget_class, GDK_KEY_KP_Enter, 0,
"activate-default", NULL);
gtk_widget_class_add_binding_signal (widget_class, GDK_KEY_I, GDK_CONTROL_MASK|GDK_SHIFT_MASK,
"enable-debugging", "(b)", FALSE);
gtk_widget_class_add_binding_signal (widget_class, GDK_KEY_D, GDK_CONTROL_MASK|GDK_SHIFT_MASK,
"enable-debugging", "(b)", TRUE);
add_arrow_bindings (widget_class, GDK_KEY_Up, GTK_DIR_UP);
add_arrow_bindings (widget_class, GDK_KEY_Down, GTK_DIR_DOWN);
add_arrow_bindings (widget_class, GDK_KEY_Left, GTK_DIR_LEFT);
add_arrow_bindings (widget_class, GDK_KEY_Right, GTK_DIR_RIGHT);
add_tab_bindings (widget_class, 0, GTK_DIR_TAB_FORWARD);
add_tab_bindings (widget_class, GDK_CONTROL_MASK, GTK_DIR_TAB_FORWARD);
add_tab_bindings (widget_class, GDK_SHIFT_MASK, GTK_DIR_TAB_BACKWARD);
add_tab_bindings (widget_class, GDK_CONTROL_MASK | GDK_SHIFT_MASK, GTK_DIR_TAB_BACKWARD);
gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_WINDOW_ACCESSIBLE);
gtk_widget_class_set_accessible_role (widget_class, ATK_ROLE_FRAME);
gtk_widget_class_set_css_name (widget_class, I_("window"));
}
/**
* gtk_window_is_maximized:
* @window: a #GtkWindow
*
* Retrieves the current maximized state of @window.
*
* Note that since maximization is ultimately handled by the window
* manager and happens asynchronously to an application request, you
* shouldn’t assume the return value of this function changing
* immediately (or at all), as an effect of calling
* gtk_window_maximize() or gtk_window_unmaximize().
*
* Returns: whether the window has a maximized state.
*/
gboolean
gtk_window_is_maximized (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_val_if_fail (GTK_IS_WINDOW (window), FALSE);
return priv->maximized;
}
void
_gtk_window_toggle_maximized (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (priv->maximized)
gtk_window_unmaximize (window);
else
gtk_window_maximize (window);
}
/**
* gtk_window_close:
* @window: a #GtkWindow
*
* Requests that the window is closed, similar to what happens
* when a window manager close button is clicked.
*
* This function can be used with close buttons in custom
* titlebars.
*/
void
gtk_window_close (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (!_gtk_widget_get_realized (GTK_WIDGET (window)))
return;
if (priv->in_emit_close_request)
return;
g_object_ref (window);
if (!gtk_window_emit_close_request (window))
gtk_widget_destroy (GTK_WIDGET (window));
g_object_unref (window);
}
static gboolean
gtk_window_titlebar_action (GtkWindow *window,
GdkEvent *event,
guint button,
gint n_press)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkSettings *settings;
gchar *action = NULL;
gboolean retval = TRUE;
settings = gtk_widget_get_settings (GTK_WIDGET (window));
switch (button)
{
case GDK_BUTTON_PRIMARY:
if (n_press == 2)
g_object_get (settings, "gtk-titlebar-double-click", &action, NULL);
break;
case GDK_BUTTON_MIDDLE:
g_object_get (settings, "gtk-titlebar-middle-click", &action, NULL);
break;
case GDK_BUTTON_SECONDARY:
g_object_get (settings, "gtk-titlebar-right-click", &action, NULL);
break;
default:
break;
}
if (action == NULL)
retval = FALSE;
else if (g_str_equal (action, "none"))
retval = FALSE;
/* treat all maximization variants the same */
else if (g_str_has_prefix (action, "toggle-maximize"))
{
/*
* gtk header bar won't show the maximize button if the following
* properties are not met, apply the same to title bar actions for
* consistency.
*/
if (gtk_window_get_resizable (window))
_gtk_window_toggle_maximized (window);
}
else if (g_str_equal (action, "lower"))
gdk_toplevel_lower (GDK_TOPLEVEL (priv->surface));
else if (g_str_equal (action, "minimize"))
gdk_toplevel_minimize (GDK_TOPLEVEL (priv->surface));
else if (g_str_equal (action, "menu"))
gtk_window_do_popup (window, event);
else
{
g_warning ("Unsupported titlebar action %s", action);
retval = FALSE;
}
g_free (action);
return retval;
}
static void
click_gesture_pressed_cb (GtkGestureClick *gesture,
gint n_press,
gdouble x,
gdouble y,
GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWidget *event_widget, *widget;
GdkEventSequence *sequence;
GtkWindowRegion region;
GdkEvent *event;
guint button;
gboolean window_drag = FALSE;
widget = GTK_WIDGET (window);
sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
button = gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture));
event = gtk_gesture_get_last_event (GTK_GESTURE (gesture), sequence);
if (!event)
return;
if (n_press > 1)
gtk_gesture_set_state (priv->drag_gesture, GTK_EVENT_SEQUENCE_DENIED);
if (gdk_display_device_is_grabbed (gtk_widget_get_display (widget),
gtk_gesture_get_device (GTK_GESTURE (gesture))))
{
gtk_gesture_set_state (priv->drag_gesture, GTK_EVENT_SEQUENCE_DENIED);
return;
}
region = get_active_region_type (window, x, y);
if (button == GDK_BUTTON_SECONDARY && region == GTK_WINDOW_REGION_TITLE)
{
if (gtk_window_titlebar_action (window, event, button, n_press))
gtk_gesture_set_sequence_state (GTK_GESTURE (gesture),
sequence, GTK_EVENT_SEQUENCE_CLAIMED);
gtk_event_controller_reset (GTK_EVENT_CONTROLLER (gesture));
gtk_event_controller_reset (GTK_EVENT_CONTROLLER (priv->drag_gesture));
return;
}
else if (button == GDK_BUTTON_MIDDLE && region == GTK_WINDOW_REGION_TITLE)
{
if (gtk_window_titlebar_action (window, event, button, n_press))
gtk_gesture_set_sequence_state (GTK_GESTURE (gesture),
sequence, GTK_EVENT_SEQUENCE_CLAIMED);
return;
}
else if (button != GDK_BUTTON_PRIMARY)
return;
event_widget = gtk_get_event_widget ((GdkEvent *) event);
if (region == GTK_WINDOW_REGION_TITLE)
gtk_window_update_toplevel (window);
switch (region)
{
case GTK_WINDOW_REGION_CONTENT:
if (event_widget != widget)
{
/* TODO: Have some way of enabling/disabling window-dragging on random widgets */
}
if (!window_drag)
{
gtk_gesture_set_sequence_state (GTK_GESTURE (gesture),
sequence, GTK_EVENT_SEQUENCE_DENIED);
return;
}
G_GNUC_FALLTHROUGH;
case GTK_WINDOW_REGION_TITLE:
if (n_press == 2)
gtk_window_titlebar_action (window, event, button, n_press);
if (gtk_widget_has_grab (widget))
gtk_gesture_set_sequence_state (GTK_GESTURE (gesture),
sequence, GTK_EVENT_SEQUENCE_CLAIMED);
break;
case GTK_WINDOW_REGION_EDGE_NW:
case GTK_WINDOW_REGION_EDGE_N:
case GTK_WINDOW_REGION_EDGE_NE:
case GTK_WINDOW_REGION_EDGE_W:
case GTK_WINDOW_REGION_EDGE_E:
case GTK_WINDOW_REGION_EDGE_SW:
case GTK_WINDOW_REGION_EDGE_S:
case GTK_WINDOW_REGION_EDGE_SE:
default:
if (!priv->maximized)
{
double tx, ty;
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
gdk_event_get_position (event, &tx, &ty);
gdk_surface_begin_resize_drag (priv->surface,
(GdkSurfaceEdge) region,
gdk_event_get_device ((GdkEvent *) event),
GDK_BUTTON_PRIMARY,
tx, ty,
gdk_event_get_time (event));
gtk_event_controller_reset (GTK_EVENT_CONTROLLER (gesture));
gtk_event_controller_reset (GTK_EVENT_CONTROLLER (priv->drag_gesture));
}
break;
}
}
static void
drag_gesture_begin_cb (GtkGestureDrag *gesture,
gdouble x,
gdouble y,
GtkWindow *window)
{
GtkWindowRegion region;
gboolean widget_drag = FALSE;
region = get_active_region_type (window, x, y);
switch (region)
{
case GTK_WINDOW_REGION_TITLE:
/* Claim it */
break;
case GTK_WINDOW_REGION_CONTENT:
/* TODO: Have some way of enabling/disabling window-dragging on random widgets */
if (!widget_drag)
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_DENIED);
break;
case GTK_WINDOW_REGION_EDGE_NW:
case GTK_WINDOW_REGION_EDGE_N:
case GTK_WINDOW_REGION_EDGE_NE:
case GTK_WINDOW_REGION_EDGE_W:
case GTK_WINDOW_REGION_EDGE_E:
case GTK_WINDOW_REGION_EDGE_SW:
case GTK_WINDOW_REGION_EDGE_S:
case GTK_WINDOW_REGION_EDGE_SE:
default:
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_DENIED);
}
}
static void
drag_gesture_update_cb (GtkGestureDrag *gesture,
gdouble offset_x,
gdouble offset_y,
GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
gint double_click_distance;
GtkSettings *settings;
settings = gtk_widget_get_settings (GTK_WIDGET (window));
g_object_get (settings,
"gtk-double-click-distance", &double_click_distance,
NULL);
if (ABS (offset_x) > double_click_distance ||
ABS (offset_y) > double_click_distance)
{
GdkEventSequence *sequence;
gdouble start_x, start_y;
sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
if (gtk_event_controller_get_propagation_phase (GTK_EVENT_CONTROLLER (gesture)) == GTK_PHASE_CAPTURE)
{
GtkWidget *event_widget = gtk_gesture_get_last_target (GTK_GESTURE (gesture), sequence);
/* Check whether the target widget should be left alone at handling
* the sequence, this is better done late to give room for gestures
* there to go denied.
*
* Besides claiming gestures, we must bail out too if there's gestures
* in the "none" state at this point, as those are still handling events
* and can potentially go claimed, and we don't want to stop the target
* widget from doing anything.
*/
if (event_widget != GTK_WIDGET (window) &&
!gtk_widget_has_grab (event_widget) &&
_gtk_widget_consumes_motion (event_widget, sequence))
{
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_DENIED);
return;
}
}
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
gtk_gesture_drag_get_start_point (gesture, &start_x, &start_y);
gdk_surface_begin_move_drag (priv->surface,
gtk_gesture_get_device (GTK_GESTURE (gesture)),
gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture)),
(int)start_x, (int)start_y,
gtk_event_controller_get_current_event_time (GTK_EVENT_CONTROLLER (gesture)));
gtk_event_controller_reset (GTK_EVENT_CONTROLLER (gesture));
gtk_event_controller_reset (GTK_EVENT_CONTROLLER (priv->click_gesture));
}
}
static void
node_style_changed_cb (GtkCssNode *node,
GtkCssStyleChange *change,
GtkWidget *widget)
{
if (gtk_css_style_change_affects (change, GTK_CSS_AFFECTS_SIZE))
gtk_widget_queue_resize (widget);
else
gtk_widget_queue_draw (widget);
}
static void
device_removed_cb (GdkSeat *seat,
GdkDevice *device,
gpointer user_data)
{
GtkWindow *window = user_data;
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GList *l = priv->foci;
while (l)
{
GList *next;
GtkPointerFocus *focus = l->data;
next = l->next;
if (focus->device == device)
{
priv->foci = g_list_delete_link (priv->foci, l);
gtk_pointer_focus_unref (focus);
}
l = next;
}
}
static guint
constraints_for_edge (GdkSurfaceEdge edge)
{
switch (edge)
{
case GDK_SURFACE_EDGE_NORTH_WEST:
return GDK_SURFACE_STATE_LEFT_RESIZABLE | GDK_SURFACE_STATE_TOP_RESIZABLE;
case GDK_SURFACE_EDGE_NORTH:
return GDK_SURFACE_STATE_TOP_RESIZABLE;
case GDK_SURFACE_EDGE_NORTH_EAST:
return GDK_SURFACE_STATE_RIGHT_RESIZABLE | GDK_SURFACE_STATE_TOP_RESIZABLE;
case GDK_SURFACE_EDGE_WEST:
return GDK_SURFACE_STATE_LEFT_RESIZABLE;
case GDK_SURFACE_EDGE_EAST:
return GDK_SURFACE_STATE_RIGHT_RESIZABLE;
case GDK_SURFACE_EDGE_SOUTH_WEST:
return GDK_SURFACE_STATE_LEFT_RESIZABLE | GDK_SURFACE_STATE_BOTTOM_RESIZABLE;
case GDK_SURFACE_EDGE_SOUTH:
return GDK_SURFACE_STATE_BOTTOM_RESIZABLE;
case GDK_SURFACE_EDGE_SOUTH_EAST:
return GDK_SURFACE_STATE_RIGHT_RESIZABLE | GDK_SURFACE_STATE_BOTTOM_RESIZABLE;
default:
g_warn_if_reached ();
return 0;
}
}
static gboolean
edge_under_coordinates (GtkWindow *window,
gint x,
gint y,
GdkSurfaceEdge edge)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkAllocation allocation;
GtkStyleContext *context;
gint handle_v, handle_h;
GtkBorder border;
gboolean supports_edge_constraints;
guint constraints;
if (!priv->client_decorated ||
!priv->resizable ||
priv->fullscreen ||
priv->maximized)
return FALSE;
supports_edge_constraints = gdk_toplevel_supports_edge_constraints (GDK_TOPLEVEL (priv->surface));
constraints = constraints_for_edge (edge);
if (!supports_edge_constraints && priv->tiled)
return FALSE;
if (supports_edge_constraints &&
(priv->edge_constraints & constraints) != constraints)
return FALSE;
gtk_widget_get_allocation (GTK_WIDGET (window), &allocation);
context = _gtk_widget_get_style_context (GTK_WIDGET (window));
gtk_style_context_save_to_node (context, priv->decoration_node);
if (priv->use_client_shadow)
{
handle_h = MIN (RESIZE_HANDLE_SIZE, allocation.width / 2);
handle_v = MIN (RESIZE_HANDLE_SIZE, allocation.height / 2);
get_shadow_width (window, &border);
}
else
{
handle_h = 0;
handle_v = 0;
gtk_style_context_get_padding (context, &border);
}
gtk_style_context_restore (context);
/* Check whether the click falls outside the handle area */
if (x >= allocation.x + border.left &&
x < allocation.x + allocation.width - border.right &&
y >= allocation.y + border.top &&
y < allocation.y + allocation.height - border.bottom)
return FALSE;
/* Check X axis */
if (x < allocation.x + border.left + handle_h)
{
if (edge != GDK_SURFACE_EDGE_NORTH_WEST &&
edge != GDK_SURFACE_EDGE_WEST &&
edge != GDK_SURFACE_EDGE_SOUTH_WEST &&
edge != GDK_SURFACE_EDGE_NORTH &&
edge != GDK_SURFACE_EDGE_SOUTH)
return FALSE;
if ((edge == GDK_SURFACE_EDGE_NORTH ||
edge == GDK_SURFACE_EDGE_SOUTH) &&
(priv->edge_constraints & constraints_for_edge (GDK_SURFACE_EDGE_WEST)))
return FALSE;
}
else if (x >= allocation.x + allocation.width - border.right - handle_h)
{
if (edge != GDK_SURFACE_EDGE_NORTH_EAST &&
edge != GDK_SURFACE_EDGE_EAST &&
edge != GDK_SURFACE_EDGE_SOUTH_EAST &&
edge != GDK_SURFACE_EDGE_NORTH &&
edge != GDK_SURFACE_EDGE_SOUTH)
return FALSE;
if ((edge == GDK_SURFACE_EDGE_NORTH ||
edge == GDK_SURFACE_EDGE_SOUTH) &&
(priv->edge_constraints & constraints_for_edge (GDK_SURFACE_EDGE_EAST)))
return FALSE;
}
else if (edge != GDK_SURFACE_EDGE_NORTH &&
edge != GDK_SURFACE_EDGE_SOUTH)
return FALSE;
/* Check Y axis */
if (y < allocation.y + border.top + handle_v)
{
if (edge != GDK_SURFACE_EDGE_NORTH_WEST &&
edge != GDK_SURFACE_EDGE_NORTH &&
edge != GDK_SURFACE_EDGE_NORTH_EAST &&
edge != GDK_SURFACE_EDGE_EAST &&
edge != GDK_SURFACE_EDGE_WEST)
return FALSE;
if ((edge == GDK_SURFACE_EDGE_EAST ||
edge == GDK_SURFACE_EDGE_WEST) &&
(priv->edge_constraints & constraints_for_edge (GDK_SURFACE_EDGE_NORTH)))
return FALSE;
}
else if (y > allocation.y + allocation.height - border.bottom - handle_v)
{
if (edge != GDK_SURFACE_EDGE_SOUTH_WEST &&
edge != GDK_SURFACE_EDGE_SOUTH &&
edge != GDK_SURFACE_EDGE_SOUTH_EAST &&
edge != GDK_SURFACE_EDGE_EAST &&
edge != GDK_SURFACE_EDGE_WEST)
return FALSE;
if ((edge == GDK_SURFACE_EDGE_EAST ||
edge == GDK_SURFACE_EDGE_WEST) &&
(priv->edge_constraints & constraints_for_edge (GDK_SURFACE_EDGE_SOUTH)))
return FALSE;
}
else if (edge != GDK_SURFACE_EDGE_WEST &&
edge != GDK_SURFACE_EDGE_EAST)
return FALSE;
return TRUE;
}
static void
gtk_window_capture_motion (GtkWidget *widget,
gdouble x,
gdouble y)
{
GtkWindow *window = GTK_WINDOW (widget);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
gint i;
const gchar *cursor_names[8] = {
"nw-resize", "n-resize", "ne-resize",
"w-resize", "e-resize",
"sw-resize", "s-resize", "se-resize"
};
g_clear_object (&priv->resize_cursor);
for (i = 0; i < 8; i++)
{
if (edge_under_coordinates (GTK_WINDOW (widget), x, y, i))
{
priv->resize_cursor = gdk_cursor_new_from_name (cursor_names[i], NULL);
break;
}
}
gtk_window_maybe_update_cursor (window, widget, NULL);
}
static void
gtk_window_activate_default_activate (GtkWidget *widget,
const char *name,
GVariant *parameter)
{
gtk_window_real_activate_default (GTK_WINDOW (widget));
}
static gboolean
gtk_window_accept_rootwindow_drop (GtkDropTargetAsync *self,
GdkDrop *drop,
double x,
double y,
gpointer unused)
{
gdk_drop_finish (drop, GDK_ACTION_MOVE);
return TRUE;
}
static void
gtk_window_init (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWidget *widget;
GtkCssNode *widget_node;
GdkSeat *seat;
GtkEventController *controller;
GtkDropTargetAsync *target;
GtkShortcut *shortcut;
widget = GTK_WIDGET (window);
priv->title = NULL;
priv->geometry_info = NULL;
priv->focus_widget = NULL;
priv->default_widget = NULL;
priv->configure_request_count = 0;
priv->resizable = TRUE;
priv->configure_notify_received = FALSE;
priv->need_default_size = TRUE;
priv->modal = FALSE;
priv->gravity = GDK_GRAVITY_NORTH_WEST;
priv->decorated = TRUE;
priv->display = gdk_display_get_default ();
priv->state = GDK_SURFACE_STATE_WITHDRAWN;
priv->deletable = TRUE;
priv->startup_id = NULL;
priv->initial_timestamp = GDK_CURRENT_TIME;
priv->mnemonics_visible = FALSE;
priv->focus_visible = TRUE;
priv->initial_fullscreen_monitor = NULL;
g_object_ref_sink (window);
priv->has_user_ref_count = TRUE;
#ifdef GDK_WINDOWING_X11
g_signal_connect (gtk_settings_get_for_display (priv->display),
"notify::gtk-application-prefer-dark-theme",
G_CALLBACK (gtk_window_on_theme_variant_changed), window);
#endif
widget_node = gtk_widget_get_css_node (GTK_WIDGET (window));
priv->decoration_node = gtk_css_node_new ();
gtk_css_node_set_name (priv->decoration_node, g_quark_from_static_string ("decoration"));
gtk_css_node_set_parent (priv->decoration_node, widget_node);
gtk_css_node_set_state (priv->decoration_node, gtk_css_node_get_state (widget_node));
g_signal_connect_object (priv->decoration_node, "style-changed", G_CALLBACK (node_style_changed_cb), window, 0);
g_object_unref (priv->decoration_node);
gtk_css_node_add_class (widget_node, g_quark_from_static_string (GTK_STYLE_CLASS_BACKGROUND));
priv->scale = gtk_widget_get_scale_factor (widget);
target = gtk_drop_target_async_new (gdk_content_formats_new ((const char*[1]) { "application/x-rootwindow-drop" }, 1),
GDK_ACTION_MOVE);
g_signal_connect (target, "drop", G_CALLBACK (gtk_window_accept_rootwindow_drop), NULL);
gtk_widget_add_controller (GTK_WIDGET (window), GTK_EVENT_CONTROLLER (target));
seat = gdk_display_get_default_seat (gtk_widget_get_display (widget));
g_signal_connect (seat, "device-removed",
G_CALLBACK (device_removed_cb), window);
controller = gtk_event_controller_motion_new ();
gtk_event_controller_set_propagation_phase (controller,
GTK_PHASE_CAPTURE);
g_signal_connect_swapped (controller, "motion",
G_CALLBACK (gtk_window_capture_motion), window);
gtk_widget_add_controller (widget, controller);
priv->key_controller = gtk_event_controller_key_new ();
gtk_event_controller_set_propagation_phase (priv->key_controller, GTK_PHASE_CAPTURE);
g_signal_connect_swapped (priv->key_controller, "key-pressed",
G_CALLBACK (gtk_window_key_pressed), window);
g_signal_connect_swapped (priv->key_controller, "key-released",
G_CALLBACK (gtk_window_key_released), window);
gtk_widget_add_controller (widget, priv->key_controller);
controller = gtk_event_controller_legacy_new ();
gtk_event_controller_set_name (controller, "gtk-window-toplevel-focus");
g_signal_connect_swapped (controller, "event",
G_CALLBACK (gtk_window_handle_focus), window);
gtk_widget_add_controller (widget, controller);
/* Shared constraint solver */
priv->constraint_solver = gtk_constraint_solver_new ();
controller = gtk_shortcut_controller_new ();
gtk_event_controller_set_propagation_phase (controller, GTK_PHASE_CAPTURE);
shortcut = gtk_shortcut_new (gtk_keyval_trigger_new (MENU_BAR_ACCEL, 0),
gtk_callback_action_new (gtk_window_activate_menubar, NULL, NULL));
gtk_shortcut_controller_add_shortcut (GTK_SHORTCUT_CONTROLLER (controller), shortcut);
gtk_event_controller_set_name (controller, "gtk-window-menubar-accel");
gtk_widget_add_controller (widget, controller);
}
static GtkGesture *
create_drag_gesture (GtkWindow *window)
{
GtkGesture *gesture;
gesture = gtk_gesture_drag_new ();
g_signal_connect (gesture, "drag-begin",
G_CALLBACK (drag_gesture_begin_cb), window);
g_signal_connect (gesture, "drag-update",
G_CALLBACK (drag_gesture_update_cb), window);
gtk_widget_add_controller (GTK_WIDGET (window), GTK_EVENT_CONTROLLER (gesture));
return gesture;
}
static void
gtk_window_constructed (GObject *object)
{
GtkWindow *window = GTK_WINDOW (object);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
G_OBJECT_CLASS (gtk_window_parent_class)->constructed (object);
priv->click_gesture = gtk_gesture_click_new ();
gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (priv->click_gesture), 0);
gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (priv->click_gesture),
GTK_PHASE_BUBBLE);
g_signal_connect (priv->click_gesture, "pressed",
G_CALLBACK (click_gesture_pressed_cb), object);
gtk_widget_add_controller (GTK_WIDGET (object), GTK_EVENT_CONTROLLER (priv->click_gesture));
priv->drag_gesture = create_drag_gesture (window);
gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (priv->drag_gesture),
GTK_PHASE_CAPTURE);
priv->bubble_drag_gesture = create_drag_gesture (window);
gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (priv->bubble_drag_gesture),
GTK_PHASE_BUBBLE);
g_list_store_append (toplevel_list, window);
g_object_unref (window);
}
static void
gtk_window_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkWindow *window = GTK_WINDOW (object);
switch (prop_id)
{
case PROP_TITLE:
gtk_window_set_title (window, g_value_get_string (value));
break;
case PROP_STARTUP_ID:
gtk_window_set_startup_id (window, g_value_get_string (value));
break;
case PROP_RESIZABLE:
gtk_window_set_resizable (window, g_value_get_boolean (value));
break;
case PROP_MODAL:
gtk_window_set_modal (window, g_value_get_boolean (value));
break;
case PROP_DEFAULT_WIDTH:
gtk_window_set_default_size_internal (window,
TRUE, g_value_get_int (value),
FALSE, -1);
break;
case PROP_DEFAULT_HEIGHT:
gtk_window_set_default_size_internal (window,
FALSE, -1,
TRUE, g_value_get_int (value));
break;
case PROP_DESTROY_WITH_PARENT:
gtk_window_set_destroy_with_parent (window, g_value_get_boolean (value));
break;
case PROP_HIDE_ON_CLOSE:
gtk_window_set_hide_on_close (window, g_value_get_boolean (value));
break;
case PROP_ICON_NAME:
gtk_window_set_icon_name (window, g_value_get_string (value));
break;
case PROP_DISPLAY:
gtk_window_set_display (window, g_value_get_object (value));
break;
case PROP_DECORATED:
gtk_window_set_decorated (window, g_value_get_boolean (value));
break;
case PROP_DELETABLE:
gtk_window_set_deletable (window, g_value_get_boolean (value));
break;
case PROP_TRANSIENT_FOR:
gtk_window_set_transient_for (window, g_value_get_object (value));
break;
case PROP_APPLICATION:
gtk_window_set_application (window, g_value_get_object (value));
break;
case PROP_DEFAULT_WIDGET:
gtk_window_set_default_widget (window, g_value_get_object (value));
break;
case PROP_MNEMONICS_VISIBLE:
gtk_window_set_mnemonics_visible (window, g_value_get_boolean (value));
break;
case PROP_FOCUS_VISIBLE:
gtk_window_set_focus_visible (window, g_value_get_boolean (value));
break;
case PROP_FOCUS_WIDGET:
gtk_window_set_focus (window, g_value_get_object (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_window_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkWindow *window = GTK_WINDOW (object);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
switch (prop_id)
{
GtkWindowGeometryInfo *info;
case PROP_TITLE:
g_value_set_string (value, priv->title);
break;
case PROP_RESIZABLE:
g_value_set_boolean (value, priv->resizable);
break;
case PROP_MODAL:
g_value_set_boolean (value, priv->modal);
break;
case PROP_DEFAULT_WIDTH:
info = gtk_window_get_geometry_info (window, FALSE);
if (!info)
g_value_set_int (value, -1);
else
g_value_set_int (value, info->default_width);
break;
case PROP_DEFAULT_HEIGHT:
info = gtk_window_get_geometry_info (window, FALSE);
if (!info)
g_value_set_int (value, -1);
else
g_value_set_int (value, info->default_height);
break;
case PROP_DESTROY_WITH_PARENT:
g_value_set_boolean (value, priv->destroy_with_parent);
break;
case PROP_HIDE_ON_CLOSE:
g_value_set_boolean (value, priv->hide_on_close);
break;
case PROP_ICON_NAME:
g_value_set_string (value, gtk_window_get_icon_name (window));
break;
case PROP_DISPLAY:
g_value_set_object (value, priv->display);
break;
case PROP_IS_ACTIVE:
g_value_set_boolean (value, priv->is_active);
break;
case PROP_DECORATED:
g_value_set_boolean (value, gtk_window_get_decorated (window));
break;
case PROP_DELETABLE:
g_value_set_boolean (value, gtk_window_get_deletable (window));
break;
case PROP_TRANSIENT_FOR:
g_value_set_object (value, gtk_window_get_transient_for (window));
break;
case PROP_APPLICATION:
g_value_set_object (value, gtk_window_get_application (window));
break;
case PROP_DEFAULT_WIDGET:
g_value_set_object (value, gtk_window_get_default_widget (window));
break;
case PROP_MNEMONICS_VISIBLE:
g_value_set_boolean (value, priv->mnemonics_visible);
break;
case PROP_FOCUS_VISIBLE:
g_value_set_boolean (value, priv->focus_visible);
break;
case PROP_IS_MAXIMIZED:
g_value_set_boolean (value, gtk_window_is_maximized (window));
break;
case PROP_FOCUS_WIDGET:
g_value_set_object (value, gtk_window_get_focus (window));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_window_buildable_interface_init (GtkBuildableIface *iface)
{
parent_buildable_iface = g_type_interface_peek_parent (iface);
iface->set_buildable_property = gtk_window_buildable_set_buildable_property;
iface->add_child = gtk_window_buildable_add_child;
}
static void
gtk_window_buildable_add_child (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *type)
{
if (type && strcmp (type, "titlebar") == 0)
gtk_window_set_titlebar (GTK_WINDOW (buildable), GTK_WIDGET (child));
else
parent_buildable_iface->add_child (buildable, builder, child, type);
}
static void
gtk_window_buildable_set_buildable_property (GtkBuildable *buildable,
GtkBuilder *builder,
const gchar *name,
const GValue *value)
{
GtkWindow *window = GTK_WINDOW (buildable);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (strcmp (name, "visible") == 0 && g_value_get_boolean (value))
priv->builder_visible = TRUE;
else if (parent_buildable_iface->set_buildable_property)
parent_buildable_iface->set_buildable_property (buildable, builder, name, value);
else
g_object_set_property (G_OBJECT (buildable), name, value);
}
static void
gtk_window_shortcut_manager_interface_init (GtkShortcutManagerInterface *iface)
{
}
static GdkDisplay *
gtk_window_root_get_display (GtkRoot *root)
{
GtkWindow *window = GTK_WINDOW (root);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
return priv->display;
}
static GdkSurface *
gtk_window_native_get_surface (GtkNative *native)
{
GtkWindow *self = GTK_WINDOW (native);
GtkWindowPrivate *priv = gtk_window_get_instance_private (self);
return priv->surface;
}
static GskRenderer *
gtk_window_native_get_renderer (GtkNative *native)
{
GtkWindow *self = GTK_WINDOW (native);
GtkWindowPrivate *priv = gtk_window_get_instance_private (self);
return priv->renderer;
}
static GtkConstraintSolver *
gtk_window_root_get_constraint_solver (GtkRoot *root)
{
GtkWindow *self = GTK_WINDOW (root);
GtkWindowPrivate *priv = gtk_window_get_instance_private (self);
return priv->constraint_solver;
}
static GtkWidget *
gtk_window_root_get_focus (GtkRoot *root)
{
GtkWindow *self = GTK_WINDOW (root);
GtkWindowPrivate *priv = gtk_window_get_instance_private (self);
return priv->focus_widget;
}
static void synthesize_focus_change_events (GtkWindow *window,
GtkWidget *old_focus,
GtkWidget *new_focus);
static void
gtk_window_root_set_focus (GtkRoot *root,
GtkWidget *focus)
{
GtkWindow *self = GTK_WINDOW (root);
GtkWindowPrivate *priv = gtk_window_get_instance_private (self);
GtkWidget *old_focus = NULL;
if (focus && !gtk_widget_is_sensitive (focus))
return;
if (focus == priv->focus_widget)
return;
if (priv->focus_widget)
old_focus = g_object_ref (priv->focus_widget);
g_set_object (&priv->focus_widget, NULL);
if (old_focus)
gtk_widget_set_has_focus (old_focus, FALSE);
synthesize_focus_change_events (self, old_focus, focus);
if (focus)
gtk_widget_set_has_focus (focus, TRUE);
g_set_object (&priv->focus_widget, focus);
g_clear_object (&old_focus);
g_object_notify (G_OBJECT (self), "focus-widget");
}
static void
gtk_window_native_get_surface_transform (GtkNative *native,
int *x,
int *y)
{
const graphene_rect_t *margin_rect;
GtkCssBoxes boxes;
gtk_css_boxes_init (&boxes, GTK_WIDGET (native));
margin_rect = gtk_css_boxes_get_margin_rect (&boxes);
*x = - margin_rect->origin.x;
*y = - margin_rect->origin.y;
}
static void
gtk_window_native_check_resize (GtkNative *native)
{
gtk_window_check_resize (GTK_WINDOW (native));
}
static void
gtk_window_root_interface_init (GtkRootInterface *iface)
{
iface->get_display = gtk_window_root_get_display;
iface->get_constraint_solver = gtk_window_root_get_constraint_solver;
iface->get_focus = gtk_window_root_get_focus;
iface->set_focus = gtk_window_root_set_focus;
}
static void
gtk_window_native_interface_init (GtkNativeInterface *iface)
{
iface->get_surface = gtk_window_native_get_surface;
iface->get_renderer = gtk_window_native_get_renderer;
iface->get_surface_transform = gtk_window_native_get_surface_transform;
iface->check_resize = gtk_window_native_check_resize;
}
/**
* gtk_window_new:
*
* Creates a new #GtkWindow, which is a toplevel window that can
* contain other widgets.
*
* To get an undecorated window (no window borders), use
* gtk_window_set_decorated().
*
* All top-level windows created by gtk_window_new() are stored in
* an internal top-level window list. This list can be obtained from
* gtk_window_list_toplevels(). Due to Gtk+ keeping a reference to
* the window internally, gtk_window_new() does not return a reference
* to the caller.
*
* To delete a #GtkWindow, call gtk_widget_destroy().
*
* Returns: a new #GtkWindow.
**/
GtkWidget*
gtk_window_new (void)
{
return g_object_new (GTK_TYPE_WINDOW, NULL);
}
static void
gtk_window_set_title_internal (GtkWindow *window,
const gchar *title,
gboolean update_titlebar)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
char *new_title;
g_return_if_fail (GTK_IS_WINDOW (window));
new_title = g_strdup (title);
g_free (priv->title);
priv->title = new_title;
if (_gtk_widget_get_realized (GTK_WIDGET (window)))
gdk_toplevel_set_title (GDK_TOPLEVEL (priv->surface), new_title != NULL ? new_title : "");
if (update_titlebar && GTK_IS_HEADER_BAR (priv->title_box))
gtk_header_bar_set_title (GTK_HEADER_BAR (priv->title_box), new_title != NULL ? new_title : "");
g_object_notify_by_pspec (G_OBJECT (window), window_props[PROP_TITLE]);
}
/**
* gtk_window_set_title:
* @window: a #GtkWindow
* @title: title of the window
*
* Sets the title of the #GtkWindow. The title of a window will be
* displayed in its title bar; on the X Window System, the title bar
* is rendered by the [window manager][gtk-X11-arch],
* so exactly how the title appears to users may vary
* according to a user’s exact configuration. The title should help a
* user distinguish this window from other windows they may have
* open. A good title might include the application name and current
* document filename, for example.
*
**/
void
gtk_window_set_title (GtkWindow *window,
const gchar *title)
{
g_return_if_fail (GTK_IS_WINDOW (window));
gtk_window_set_title_internal (window, title, TRUE);
}
/**
* gtk_window_get_title:
* @window: a #GtkWindow
*
* Retrieves the title of the window. See gtk_window_set_title().
*
* Returns: (nullable): the title of the window, or %NULL if none has
* been set explicitly. The returned string is owned by the widget
* and must not be modified or freed.
**/
const gchar *
gtk_window_get_title (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_val_if_fail (GTK_IS_WINDOW (window), NULL);
return priv->title;
}
/**
* gtk_window_set_startup_id:
* @window: a #GtkWindow
* @startup_id: a string with startup-notification identifier
*
* Startup notification identifiers are used by desktop environment to
* track application startup, to provide user feedback and other
* features. This function changes the corresponding property on the
* underlying GdkSurface. Normally, startup identifier is managed
* automatically and you should only use this function in special cases
* like transferring focus from other processes. You should use this
* function before calling gtk_window_present() or any equivalent
* function generating a window map event.
*
* This function is only useful on X11, not with other GTK+ targets.
**/
void
gtk_window_set_startup_id (GtkWindow *window,
const gchar *startup_id)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWidget *widget;
g_return_if_fail (GTK_IS_WINDOW (window));
widget = GTK_WIDGET (window);
g_free (priv->startup_id);
priv->startup_id = g_strdup (startup_id);
if (_gtk_widget_get_realized (widget))
{
guint32 timestamp = extract_time_from_startup_id (priv->startup_id);
#ifdef GDK_WINDOWING_X11
if (timestamp != GDK_CURRENT_TIME && GDK_IS_X11_SURFACE (priv->surface))
gdk_x11_surface_set_user_time (priv->surface, timestamp);
#endif
/* Here we differentiate real and "fake" startup notification IDs,
* constructed on purpose just to pass interaction timestamp
*/
if (startup_id_is_fake (priv->startup_id))
gtk_window_present_with_time (window, timestamp);
else
{
gdk_toplevel_set_startup_id (GDK_TOPLEVEL (priv->surface), priv->startup_id);
/* If window is mapped, terminate the startup-notification too */
if (_gtk_widget_get_mapped (widget) && !disable_startup_notification)
gdk_display_notify_startup_complete (gtk_widget_get_display (widget), priv->startup_id);
}
}
g_object_notify_by_pspec (G_OBJECT (window), window_props[PROP_STARTUP_ID]);
}
/**
* gtk_window_set_default_widget:
* @window: a #GtkWindow
* @default_widget: (allow-none): widget to be the default, or %NULL
* to unset the default widget for the toplevel
*
* The default widget is the widget that’s activated when the user
* presses Enter in a dialog (for example). This function sets or
* unsets the default widget for a #GtkWindow.
*/
void
gtk_window_set_default_widget (GtkWindow *window,
GtkWidget *default_widget)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_if_fail (GTK_IS_WINDOW (window));
if (priv->default_widget != default_widget)
{
GtkWidget *old_default_widget = NULL;
if (default_widget)
g_object_ref (default_widget);
if (priv->default_widget)
{
old_default_widget = priv->default_widget;
if (priv->focus_widget != priv->default_widget ||
!gtk_widget_get_receives_default (priv->default_widget))
_gtk_widget_set_has_default (priv->default_widget, FALSE);
gtk_widget_queue_draw (priv->default_widget);
}
priv->default_widget = default_widget;
if (priv->default_widget)
{
if (priv->focus_widget == NULL ||
!gtk_widget_get_receives_default (priv->focus_widget))
_gtk_widget_set_has_default (priv->default_widget, TRUE);
gtk_widget_queue_draw (priv->default_widget);
}
if (old_default_widget)
g_object_notify (G_OBJECT (old_default_widget), "has-default");
if (default_widget)
{
g_object_notify (G_OBJECT (default_widget), "has-default");
g_object_unref (default_widget);
}
g_object_notify_by_pspec (G_OBJECT (window), window_props[PROP_DEFAULT_WIDGET]);
}
}
/**
* gtk_window_get_default_widget:
* @window: a #GtkWindow
*
* Returns the default widget for @window. See
* gtk_window_set_default() for more details.
*
* Returns: (nullable) (transfer none): the default widget, or %NULL
* if there is none.
**/
GtkWidget *
gtk_window_get_default_widget (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_val_if_fail (GTK_IS_WINDOW (window), NULL);
return priv->default_widget;
}
static gboolean
handle_keys_changed (gpointer data)
{
GtkWindow *window = GTK_WINDOW (data);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (priv->keys_changed_handler)
{
g_source_remove (priv->keys_changed_handler);
priv->keys_changed_handler = 0;
}
g_signal_emit (window, window_signals[KEYS_CHANGED], 0);
return FALSE;
}
void
_gtk_window_notify_keys_changed (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (!priv->keys_changed_handler)
{
priv->keys_changed_handler = g_idle_add (handle_keys_changed, window);
g_source_set_name_by_id (priv->keys_changed_handler, "[gtk] handle_keys_changed");
}
}
/**
* gtk_window_get_focus:
* @window: a #GtkWindow
*
* Retrieves the current focused widget within the window.
* Note that this is the widget that would have the focus
* if the toplevel window focused; if the toplevel window
* is not focused then `gtk_widget_has_focus (widget)` will
* not be %TRUE for the widget.
*
* Returns: (nullable) (transfer none): the currently focused widget,
* or %NULL if there is none.
**/
GtkWidget *
gtk_window_get_focus (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_val_if_fail (GTK_IS_WINDOW (window), NULL);
return priv->focus_widget;
}
static void
gtk_window_real_activate_default (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (priv->default_widget && gtk_widget_is_sensitive (priv->default_widget) &&
(!priv->focus_widget || !gtk_widget_get_receives_default (priv->focus_widget)))
gtk_widget_activate (priv->default_widget);
else if (priv->focus_widget && gtk_widget_is_sensitive (priv->focus_widget))
gtk_widget_activate (priv->focus_widget);
}
/**
* gtk_window_set_modal:
* @window: a #GtkWindow
* @modal: whether the window is modal
*
* Sets a window modal or non-modal. Modal windows prevent interaction
* with other windows in the same application. To keep modal dialogs
* on top of main application windows, use
* gtk_window_set_transient_for() to make the dialog transient for the
* parent; most [window managers][gtk-X11-arch]
* will then disallow lowering the dialog below the parent.
*
*
**/
void
gtk_window_set_modal (GtkWindow *window,
gboolean modal)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWidget *widget;
g_return_if_fail (GTK_IS_WINDOW (window));
modal = modal != FALSE;
if (priv->modal == modal)
return;
priv->modal = modal;
widget = GTK_WIDGET (window);
if (_gtk_widget_get_realized (widget))
gdk_toplevel_set_modal (GDK_TOPLEVEL (priv->surface), modal);
if (gtk_widget_get_visible (widget))
{
if (priv->modal)
gtk_grab_add (widget);
else
gtk_grab_remove (widget);
}
update_window_buttons (window);
g_object_notify_by_pspec (G_OBJECT (window), window_props[PROP_MODAL]);
}
/**
* gtk_window_get_modal:
* @window: a #GtkWindow
*
* Returns whether the window is modal. See gtk_window_set_modal().
*
* Returns: %TRUE if the window is set to be modal and
* establishes a grab when shown
**/
gboolean
gtk_window_get_modal (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_val_if_fail (GTK_IS_WINDOW (window), FALSE);
return priv->modal;
}
/**
* gtk_window_get_toplevels:
*
* Returns a list of all existing toplevel windows.
*
* If you want to iterate through the list and perform actions involving
* callbacks that might destroy the widgets or add new ones, be aware that
* the list of toplevels will change and emit the "items-changed" signal.
*
* Returns: (element-type GtkWidget) (transfer none): the list of toplevel widgets
*/
GListModel *
gtk_window_get_toplevels (void)
{
if (toplevel_list == NULL)
toplevel_list = g_list_store_new (GTK_TYPE_WIDGET);
return G_LIST_MODEL (toplevel_list);
}
/**
* gtk_window_list_toplevels:
*
* Returns a list of all existing toplevel windows. The widgets
* in the list are not individually referenced. If you want
* to iterate through the list and perform actions involving
* callbacks that might destroy the widgets, you must call
* `g_list_foreach (result, (GFunc)g_object_ref, NULL)` first, and
* then unref all the widgets afterwards.
*
* Returns: (element-type GtkWidget) (transfer container): list of toplevel widgets
**/
GList*
gtk_window_list_toplevels (void)
{
GListModel *toplevels;
GList *list = NULL;
guint i;
toplevels = gtk_window_get_toplevels ();
for (i = 0; i < g_list_model_get_n_items (toplevels); i++)
{
gpointer item = g_list_model_get_item (toplevels, i);
list = g_list_prepend (list, item);
g_object_unref (item);
}
return list;
}
static void
remove_attach_widget (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (priv->attach_widget)
{
_gtk_widget_remove_attached_window (priv->attach_widget, window);
priv->attach_widget = NULL;
}
}
static void
gtk_window_dispose (GObject *object)
{
GtkWindow *window = GTK_WINDOW (object);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_list_free_full (priv->foci, (GDestroyNotify) gtk_pointer_focus_unref);
priv->foci = NULL;
g_clear_pointer (&priv->layout, gdk_toplevel_layout_unref);
gtk_window_set_focus (window, NULL);
gtk_window_set_default_widget (window, NULL);
remove_attach_widget (window);
G_OBJECT_CLASS (gtk_window_parent_class)->dispose (object);
unset_titlebar (window);
}
static void
parent_destroyed_callback (GtkWindow *parent, GtkWindow *child)
{
gtk_widget_destroy (GTK_WIDGET (child));
}
static void
connect_parent_destroyed (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (priv->transient_parent)
{
g_signal_connect (priv->transient_parent,
"destroy",
G_CALLBACK (parent_destroyed_callback),
window);
}
}
static void
disconnect_parent_destroyed (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (priv->transient_parent)
{
g_signal_handlers_disconnect_by_func (priv->transient_parent,
parent_destroyed_callback,
window);
}
}
static void
gtk_window_transient_parent_realized (GtkWidget *parent,
GtkWidget *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (GTK_WINDOW (window));
GtkWindowPrivate *parent_priv = gtk_window_get_instance_private (GTK_WINDOW (parent));
if (_gtk_widget_get_realized (window))
gdk_toplevel_set_transient_for (GDK_TOPLEVEL (priv->surface), parent_priv->surface);
}
static void
gtk_window_transient_parent_unrealized (GtkWidget *parent,
GtkWidget *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (GTK_WINDOW (window));
if (_gtk_widget_get_realized (window))
gdk_toplevel_set_transient_for (GDK_TOPLEVEL (priv->surface), NULL);
}
static void
gtk_window_transient_parent_display_changed (GtkWindow *parent,
GParamSpec *pspec,
GtkWindow *window)
{
GtkWindowPrivate *parent_priv = gtk_window_get_instance_private (parent);
gtk_window_set_display (window, parent_priv->display);
}
static void
gtk_window_unset_transient_for (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (priv->transient_parent)
{
g_signal_handlers_disconnect_by_func (priv->transient_parent,
gtk_window_transient_parent_realized,
window);
g_signal_handlers_disconnect_by_func (priv->transient_parent,
gtk_window_transient_parent_unrealized,
window);
g_signal_handlers_disconnect_by_func (priv->transient_parent,
gtk_window_transient_parent_display_changed,
window);
g_signal_handlers_disconnect_by_func (priv->transient_parent,
gtk_widget_destroyed,
&priv->transient_parent);
if (priv->destroy_with_parent)
disconnect_parent_destroyed (window);
priv->transient_parent = NULL;
if (priv->transient_parent_group)
{
priv->transient_parent_group = FALSE;
gtk_window_group_remove_window (priv->group,
window);
}
}
}
/**
* gtk_window_set_transient_for:
* @window: a #GtkWindow
* @parent: (allow-none): parent window, or %NULL
*
* Dialog windows should be set transient for the main application
* window they were spawned from. This allows
* [window managers][gtk-X11-arch] to e.g. keep the
* dialog on top of the main window, or center the dialog over the
* main window. gtk_dialog_new_with_buttons() and other convenience
* functions in GTK+ will sometimes call
* gtk_window_set_transient_for() on your behalf.
*
* Passing %NULL for @parent unsets the current transient window.
*
* On Windows, this function puts the child window on top of the parent,
* much as the window manager would have done on X.
*/
void
gtk_window_set_transient_for (GtkWindow *window,
GtkWindow *parent)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_if_fail (GTK_IS_WINDOW (window));
g_return_if_fail (parent == NULL || GTK_IS_WINDOW (parent));
g_return_if_fail (window != parent);
if (priv->transient_parent)
{
if (_gtk_widget_get_realized (GTK_WIDGET (window)) &&
_gtk_widget_get_realized (GTK_WIDGET (priv->transient_parent)) &&
(!parent || !_gtk_widget_get_realized (GTK_WIDGET (parent))))
gtk_window_transient_parent_unrealized (GTK_WIDGET (priv->transient_parent),
GTK_WIDGET (window));
gtk_window_unset_transient_for (window);
}
priv->transient_parent = parent;
if (parent)
{
GtkWindowPrivate *parent_priv = gtk_window_get_instance_private (parent);
g_signal_connect (parent, "destroy",
G_CALLBACK (gtk_widget_destroyed),
&priv->transient_parent);
g_signal_connect (parent, "realize",
G_CALLBACK (gtk_window_transient_parent_realized),
window);
g_signal_connect (parent, "unrealize",
G_CALLBACK (gtk_window_transient_parent_unrealized),
window);
g_signal_connect (parent, "notify::display",
G_CALLBACK (gtk_window_transient_parent_display_changed),
window);
gtk_window_set_display (window, parent_priv->display);
if (priv->destroy_with_parent)
connect_parent_destroyed (window);
if (_gtk_widget_get_realized (GTK_WIDGET (window)) &&
_gtk_widget_get_realized (GTK_WIDGET (parent)))
gtk_window_transient_parent_realized (GTK_WIDGET (parent),
GTK_WIDGET (window));
if (parent_priv->group)
{
gtk_window_group_add_window (parent_priv->group, window);
priv->transient_parent_group = TRUE;
}
}
update_window_buttons (window);
g_object_notify_by_pspec (G_OBJECT (window), window_props[PROP_TRANSIENT_FOR]);
}
/**
* gtk_window_get_transient_for:
* @window: a #GtkWindow
*
* Fetches the transient parent for this window. See
* gtk_window_set_transient_for().
*
* Returns: (nullable) (transfer none): the transient parent for this
* window, or %NULL if no transient parent has been set.
**/
GtkWindow *
gtk_window_get_transient_for (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_val_if_fail (GTK_IS_WINDOW (window), NULL);
return priv->transient_parent;
}
/**
* gtk_window_get_application:
* @window: a #GtkWindow
*
* Gets the #GtkApplication associated with the window (if any).
*
* Returns: (nullable) (transfer none): a #GtkApplication, or %NULL
**/
GtkApplication *
gtk_window_get_application (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_val_if_fail (GTK_IS_WINDOW (window), NULL);
return priv->application;
}
static void
gtk_window_release_application (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (priv->application)
{
GtkApplication *application;
/* steal reference into temp variable */
application = priv->application;
priv->application = NULL;
gtk_widget_remove_controller (GTK_WIDGET (window),
priv->application_shortcut_controller);
priv->application_shortcut_controller = NULL;
gtk_application_remove_window (application, window);
g_object_unref (application);
}
}
/**
* gtk_window_set_application:
* @window: a #GtkWindow
* @application: (allow-none): a #GtkApplication, or %NULL to unset
*
* Sets or unsets the #GtkApplication associated with the window.
*
* The application will be kept alive for at least as long as it has any windows
* associated with it (see g_application_hold() for a way to keep it alive
* without windows).
*
* Normally, the connection between the application and the window will remain
* until the window is destroyed, but you can explicitly remove it by setting
* the @application to %NULL.
*
* This is equivalent to calling gtk_application_remove_window() and/or
* gtk_application_add_window() on the old/new applications as relevant.
**/
void
gtk_window_set_application (GtkWindow *window,
GtkApplication *application)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_if_fail (GTK_IS_WINDOW (window));
if (priv->application != application)
{
gtk_window_release_application (window);
priv->application = application;
if (priv->application != NULL)
{
GtkApplicationAccels *app_accels;
g_object_ref (priv->application);
gtk_application_add_window (priv->application, window);
app_accels = gtk_application_get_application_accels (priv->application);
priv->application_shortcut_controller = gtk_shortcut_controller_new_for_model (gtk_application_accels_get_shortcuts (app_accels));
gtk_event_controller_set_name (priv->application_shortcut_controller, "gtk-application-shortcuts");
gtk_event_controller_set_propagation_phase (priv->application_shortcut_controller, GTK_PHASE_CAPTURE);
gtk_shortcut_controller_set_scope (GTK_SHORTCUT_CONTROLLER (priv->application_shortcut_controller), GTK_SHORTCUT_SCOPE_GLOBAL);
gtk_widget_add_controller (GTK_WIDGET (window), priv->application_shortcut_controller);
}
_gtk_widget_update_parent_muxer (GTK_WIDGET (window));
_gtk_window_notify_keys_changed (window);
g_object_notify_by_pspec (G_OBJECT (window), window_props[PROP_APPLICATION]);
}
}
/**
* gtk_window_set_destroy_with_parent:
* @window: a #GtkWindow
* @setting: whether to destroy @window with its transient parent
*
* If @setting is %TRUE, then destroying the transient parent of @window
* will also destroy @window itself. This is useful for dialogs that
* shouldn’t persist beyond the lifetime of the main window they're
* associated with, for example.
**/
void
gtk_window_set_destroy_with_parent (GtkWindow *window,
gboolean setting)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_if_fail (GTK_IS_WINDOW (window));
if (priv->destroy_with_parent == (setting != FALSE))
return;
if (priv->destroy_with_parent)
{
disconnect_parent_destroyed (window);
}
else
{
connect_parent_destroyed (window);
}
priv->destroy_with_parent = setting;
g_object_notify_by_pspec (G_OBJECT (window), window_props[PROP_DESTROY_WITH_PARENT]);
}
/**
* gtk_window_get_destroy_with_parent:
* @window: a #GtkWindow
*
* Returns whether the window will be destroyed with its transient parent. See
* gtk_window_set_destroy_with_parent ().
*
* Returns: %TRUE if the window will be destroyed with its transient parent.
**/
gboolean
gtk_window_get_destroy_with_parent (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_val_if_fail (GTK_IS_WINDOW (window), FALSE);
return priv->destroy_with_parent;
}
/**
* gtk_window_set_hide_on_close:
* @window: a #GtkWindow
* @setting: whether to hide the window when it is closed
*
* If @setting is %TRUE, then clicking the close button on the window
* will not destroy it, but only hide it.
*/
void
gtk_window_set_hide_on_close (GtkWindow *window,
gboolean setting)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_if_fail (GTK_IS_WINDOW (window));
if (priv->hide_on_close == setting)
return;
priv->hide_on_close = setting;
g_object_notify_by_pspec (G_OBJECT (window), window_props[PROP_HIDE_ON_CLOSE]);
}
/**
* gtk_window_get_hide_on_close:
* @window: a #GtkWindow
*
* Returns whether the window will be hidden when the close button is clicked.
*
* Returns: %TRUE if the window will be hidden
*/
gboolean
gtk_window_get_hide_on_close (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_val_if_fail (GTK_IS_WINDOW (window), FALSE);
return priv->hide_on_close;
}
static GtkWindowGeometryInfo*
gtk_window_get_geometry_info (GtkWindow *window,
gboolean create)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWindowGeometryInfo *info;
info = priv->geometry_info;
if (!info && create)
{
info = g_new0 (GtkWindowGeometryInfo, 1);
info->default_width = -1;
info->default_height = -1;
info->resize_width = -1;
info->resize_height = -1;
info->last.configure_request.x = 0;
info->last.configure_request.y = 0;
info->last.configure_request.width = -1;
info->last.configure_request.height = -1;
priv->geometry_info = info;
}
return info;
}
static void
unset_titlebar (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (priv->title_box != NULL)
{
g_signal_handlers_disconnect_by_func (priv->title_box,
on_titlebar_title_notify,
window);
gtk_widget_unparent (priv->title_box);
priv->title_box = NULL;
priv->titlebar = NULL;
}
}
static gboolean
gtk_window_supports_client_shadow (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GdkDisplay *display;
display = priv->display;
if (!gdk_display_is_rgba (display))
return FALSE;
if (!gdk_display_is_composited (display))
return FALSE;
#ifdef GDK_WINDOWING_X11
if (GDK_IS_X11_DISPLAY (display))
{
if (!gdk_x11_screen_supports_net_wm_hint (gdk_x11_display_get_screen (display),
g_intern_static_string ("_GTK_FRAME_EXTENTS")))
return FALSE;
}
#endif
return TRUE;
}
static void
gtk_window_enable_csd (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWidget *widget = GTK_WIDGET (window);
/* We need a visual with alpha for client shadows */
if (priv->use_client_shadow)
gtk_widget_add_css_class (widget, GTK_STYLE_CLASS_CSD);
else
gtk_widget_add_css_class (widget, "solid-csd");
priv->client_decorated = TRUE;
}
static void
on_titlebar_title_notify (GtkHeaderBar *titlebar,
GParamSpec *pspec,
GtkWindow *self)
{
const gchar *title;
title = gtk_header_bar_get_title (titlebar);
gtk_window_set_title_internal (self, title, FALSE);
}
/**
* gtk_window_set_titlebar:
* @window: a #GtkWindow
* @titlebar: (allow-none): the widget to use as titlebar
*
* Sets a custom titlebar for @window.
*
* A typical widget used here is #GtkHeaderBar, as it provides various features
* expected of a titlebar while allowing the addition of child widgets to it.
*
* If you set a custom titlebar, GTK+ will do its best to convince
* the window manager not to put its own titlebar on the window.
* Depending on the system, this function may not work for a window
* that is already visible, so you set the titlebar before calling
* gtk_widget_show().
*/
void
gtk_window_set_titlebar (GtkWindow *window,
GtkWidget *titlebar)
{
GtkWidget *widget = GTK_WIDGET (window);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
gboolean was_mapped;
g_return_if_fail (GTK_IS_WINDOW (window));
if ((!priv->title_box && titlebar) || (priv->title_box && !titlebar))
{
was_mapped = _gtk_widget_get_mapped (widget);
if (_gtk_widget_get_realized (widget))
{
g_warning ("gtk_window_set_titlebar() called on a realized window");
gtk_widget_unrealize (widget);
}
}
else
was_mapped = FALSE;
unset_titlebar (window);
if (titlebar == NULL)
{
priv->client_decorated = FALSE;
gtk_widget_remove_css_class (widget, GTK_STYLE_CLASS_CSD);
goto out;
}
priv->use_client_shadow = gtk_window_supports_client_shadow (window);
gtk_window_enable_csd (window);
priv->title_box = titlebar;
/* Same reason as in gtk_window_add */
gtk_css_node_insert_before (gtk_widget_get_css_node (GTK_WIDGET (window)),
gtk_widget_get_css_node (titlebar),
NULL);
gtk_widget_set_parent (priv->title_box, widget);
if (GTK_IS_HEADER_BAR (titlebar))
{
g_signal_connect (titlebar, "notify::title",
G_CALLBACK (on_titlebar_title_notify), window);
on_titlebar_title_notify (GTK_HEADER_BAR (titlebar), NULL, window);
}
gtk_widget_add_css_class (titlebar, GTK_STYLE_CLASS_TITLEBAR);
out:
if (was_mapped)
gtk_widget_map (widget);
}
/**
* gtk_window_get_titlebar:
* @window: a #GtkWindow
*
* Returns the custom titlebar that has been set with
* gtk_window_set_titlebar().
*
* Returns: (nullable) (transfer none): the custom titlebar, or %NULL
*/
GtkWidget *
gtk_window_get_titlebar (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_val_if_fail (GTK_IS_WINDOW (window), NULL);
/* Don't return the internal titlebar */
if (priv->title_box == priv->titlebar)
return NULL;
return priv->title_box;
}
gboolean
_gtk_window_titlebar_shows_app_menu (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (GTK_IS_HEADER_BAR (priv->title_box))
return _gtk_header_bar_shows_app_menu (GTK_HEADER_BAR (priv->title_box));
return FALSE;
}
/**
* gtk_window_set_decorated:
* @window: a #GtkWindow
* @setting: %TRUE to decorate the window
*
* By default, windows are decorated with a title bar, resize
* controls, etc. Some [window managers][gtk-X11-arch]
* allow GTK+ to disable these decorations, creating a
* borderless window. If you set the decorated property to %FALSE
* using this function, GTK+ will do its best to convince the window
* manager not to decorate the window. Depending on the system, this
* function may not have any effect when called on a window that is
* already visible, so you should call it before calling gtk_widget_show().
*
* On Windows, this function always works, since there’s no window manager
* policy involved.
*
**/
void
gtk_window_set_decorated (GtkWindow *window,
gboolean setting)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_if_fail (GTK_IS_WINDOW (window));
setting = setting != FALSE;
if (setting == priv->decorated)
return;
priv->decorated = setting;
if (priv->surface)
gdk_toplevel_set_decorated (GDK_TOPLEVEL (priv->surface), priv->decorated && !priv->client_decorated);
update_window_buttons (window);
gtk_widget_queue_resize (GTK_WIDGET (window));
g_object_notify_by_pspec (G_OBJECT (window), window_props[PROP_DECORATED]);
}
/**
* gtk_window_get_decorated:
* @window: a #GtkWindow
*
* Returns whether the window has been set to have decorations
* such as a title bar via gtk_window_set_decorated().
*
* Returns: %TRUE if the window has been set to have decorations
**/
gboolean
gtk_window_get_decorated (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_val_if_fail (GTK_IS_WINDOW (window), TRUE);
return priv->decorated;
}
/**
* gtk_window_set_deletable:
* @window: a #GtkWindow
* @setting: %TRUE to decorate the window as deletable
*
* By default, windows have a close button in the window frame. Some
* [window managers][gtk-X11-arch] allow GTK+ to
* disable this button. If you set the deletable property to %FALSE
* using this function, GTK+ will do its best to convince the window
* manager not to show a close button. Depending on the system, this
* function may not have any effect when called on a window that is
* already visible, so you should call it before calling gtk_widget_show().
*
* On Windows, this function always works, since there’s no window manager
* policy involved.
*/
void
gtk_window_set_deletable (GtkWindow *window,
gboolean setting)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_if_fail (GTK_IS_WINDOW (window));
setting = setting != FALSE;
if (setting == priv->deletable)
return;
priv->deletable = setting;
if (priv->surface)
gdk_toplevel_set_deletable (GDK_TOPLEVEL (priv->surface), priv->deletable);
update_window_buttons (window);
g_object_notify_by_pspec (G_OBJECT (window), window_props[PROP_DELETABLE]);
}
/**
* gtk_window_get_deletable:
* @window: a #GtkWindow
*
* Returns whether the window has been set to have a close button
* via gtk_window_set_deletable().
*
* Returns: %TRUE if the window has been set to have a close button
**/
gboolean
gtk_window_get_deletable (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_val_if_fail (GTK_IS_WINDOW (window), TRUE);
return priv->deletable;
}
static GtkWindowIconInfo*
get_icon_info (GtkWindow *window)
{
return g_object_get_qdata (G_OBJECT (window), quark_gtk_window_icon_info);
}
static void
free_icon_info (GtkWindowIconInfo *info)
{
g_free (info->icon_name);
g_slice_free (GtkWindowIconInfo, info);
}
static GtkWindowIconInfo*
ensure_icon_info (GtkWindow *window)
{
GtkWindowIconInfo *info;
info = get_icon_info (window);
if (info == NULL)
{
info = g_slice_new0 (GtkWindowIconInfo);
g_object_set_qdata_full (G_OBJECT (window),
quark_gtk_window_icon_info,
info,
(GDestroyNotify)free_icon_info);
}
return info;
}
static int
icon_size_compare (GdkTexture *a,
GdkTexture *b)
{
int area_a, area_b;
area_a = gdk_texture_get_width (a) * gdk_texture_get_height (a);
area_b = gdk_texture_get_width (b) * gdk_texture_get_height (b);
return area_a - area_b;
}
static GdkTexture *
render_paintable_to_texture (GdkPaintable *paintable)
{
GtkSnapshot *snapshot;
GskRenderNode *node;
int width, height;
cairo_surface_t *surface;
cairo_t *cr;
GdkTexture *texture;
width = gdk_paintable_get_intrinsic_width (paintable);
height = gdk_paintable_get_intrinsic_height (paintable);
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height);
snapshot = gtk_snapshot_new ();
gdk_paintable_snapshot (paintable, snapshot, width, height);
node = gtk_snapshot_free_to_node (snapshot);
cr = cairo_create (surface);
gsk_render_node_draw (node, cr);
cairo_destroy (cr);
gsk_render_node_unref (node);
texture = gdk_texture_new_for_surface (surface);
cairo_surface_destroy (surface);
return texture;
}
static GList *
icon_list_from_theme (GtkWindow *window,
const gchar *name)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GList *list;
GtkStyleContext *context;
GtkCssValue *value;
GtkIconTheme *icon_theme;
GtkIconPaintable *info;
GdkTexture *texture;
gint *sizes;
gint i;
context = gtk_widget_get_style_context (GTK_WIDGET (window));
value = _gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_ICON_THEME);
icon_theme = gtk_css_icon_theme_value_get_icon_theme (value);
sizes = gtk_icon_theme_get_icon_sizes (icon_theme, name);
list = NULL;
for (i = 0; sizes[i]; i++)
{
/* FIXME
* We need an EWMH extension to handle scalable icons
* by passing their name to the WM. For now just use a
* fixed size of 48.
*/
if (sizes[i] == -1)
info = gtk_icon_theme_lookup_icon (icon_theme, name, NULL,
48, priv->scale,
gtk_widget_get_direction (GTK_WIDGET (window)),
0);
else
info = gtk_icon_theme_lookup_icon (icon_theme, name, NULL,
sizes[i], priv->scale,
gtk_widget_get_direction (GTK_WIDGET (window)),
0);
texture = render_paintable_to_texture (GDK_PAINTABLE (info));
list = g_list_insert_sorted (list, texture, (GCompareFunc) icon_size_compare);
g_object_unref (info);
}
g_free (sizes);
return list;
}
static void
gtk_window_realize_icon (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWindowIconInfo *info;
GList *icon_list = NULL;
g_return_if_fail (priv->surface != NULL);
info = ensure_icon_info (window);
if (info->realized)
return;
info->using_default_icon = FALSE;
info->using_themed_icon = FALSE;
/* Look up themed icon */
if (icon_list == NULL && info->icon_name)
{
icon_list = icon_list_from_theme (window, info->icon_name);
if (icon_list)
info->using_themed_icon = TRUE;
}
/* Look up themed icon */
if (icon_list == NULL && default_icon_name)
{
icon_list = icon_list_from_theme (window, default_icon_name);
info->using_default_icon = TRUE;
info->using_themed_icon = TRUE;
}
info->realized = TRUE;
gdk_toplevel_set_icon_list (GDK_TOPLEVEL (priv->surface), icon_list);
if (GTK_IS_HEADER_BAR (priv->title_box))
_gtk_header_bar_update_window_icon (GTK_HEADER_BAR (priv->title_box), window);
if (info->using_themed_icon)
g_list_free_full (icon_list, g_object_unref);
}
GdkPaintable *
gtk_window_get_icon_for_size (GtkWindow *window,
int size)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
const char *name;
GtkIconPaintable *info;
name = gtk_window_get_icon_name (window);
if (!name)
name = default_icon_name;
if (!name)
return NULL;
info = gtk_icon_theme_lookup_icon (gtk_icon_theme_get_for_display (gtk_widget_get_display (GTK_WIDGET (window))),
name, NULL, size, priv->scale,
gtk_widget_get_direction (GTK_WIDGET (window)),
0);
if (info == NULL)
return NULL;
return GDK_PAINTABLE (info);
}
static void
gtk_window_unrealize_icon (GtkWindow *window)
{
GtkWindowIconInfo *info;
info = get_icon_info (window);
if (info == NULL)
return;
/* We don't clear the properties on the window, just figure the
* window is going away.
*/
info->realized = FALSE;
}
static void
update_themed_icon (GtkWindow *window)
{
g_object_notify_by_pspec (G_OBJECT (window), window_props[PROP_ICON_NAME]);
gtk_window_unrealize_icon (window);
if (_gtk_widget_get_realized (GTK_WIDGET (window)))
gtk_window_realize_icon (window);
}
/**
* gtk_window_set_icon_name:
* @window: a #GtkWindow
* @name: (allow-none): the name of the themed icon
*
* Sets the icon for the window from a named themed icon.
* See the docs for #GtkIconTheme for more details.
* On some platforms, the window icon is not used at all.
*
* Note that this has nothing to do with the WM_ICON_NAME
* property which is mentioned in the ICCCM.
*/
void
gtk_window_set_icon_name (GtkWindow *window,
const gchar *name)
{
GtkWindowIconInfo *info;
gchar *tmp;
g_return_if_fail (GTK_IS_WINDOW (window));
info = ensure_icon_info (window);
if (g_strcmp0 (info->icon_name, name) == 0)
return;
tmp = info->icon_name;
info->icon_name = g_strdup (name);
g_free (tmp);
update_themed_icon (window);
g_object_notify_by_pspec (G_OBJECT (window), window_props[PROP_ICON_NAME]);
}
/**
* gtk_window_get_icon_name:
* @window: a #GtkWindow
*
* Returns the name of the themed icon for the window,
* see gtk_window_set_icon_name().
*
* Returns: (nullable): the icon name or %NULL if the window has
* no themed icon
*/
const gchar *
gtk_window_get_icon_name (GtkWindow *window)
{
GtkWindowIconInfo *info;
g_return_val_if_fail (GTK_IS_WINDOW (window), NULL);
info = ensure_icon_info (window);
return info->icon_name;
}
/**
* gtk_window_set_default_icon_name:
* @name: the name of the themed icon
*
* Sets an icon to be used as fallback for windows that haven't
* had gtk_window_set_icon_list() called on them from a named
* themed icon, see gtk_window_set_icon_name().
**/
void
gtk_window_set_default_icon_name (const gchar *name)
{
GList *tmp_list;
GList *toplevels;
g_free (default_icon_name);
default_icon_name = g_strdup (name);
/* Update all toplevels */
toplevels = gtk_window_list_toplevels ();
tmp_list = toplevels;
while (tmp_list != NULL)
{
GtkWindowIconInfo *info;
GtkWindow *w = tmp_list->data;
info = get_icon_info (w);
if (info && info->using_default_icon && info->using_themed_icon)
{
gtk_window_unrealize_icon (w);
if (_gtk_widget_get_realized (GTK_WIDGET (w)))
gtk_window_realize_icon (w);
}
tmp_list = tmp_list->next;
}
g_list_free (toplevels);
}
/**
* gtk_window_get_default_icon_name:
*
* Returns the fallback icon name for windows that has been set
* with gtk_window_set_default_icon_name(). The returned
* string is owned by GTK+ and should not be modified. It
* is only valid until the next call to
* gtk_window_set_default_icon_name().
*
* Returns: the fallback icon name for windows
*/
const gchar *
gtk_window_get_default_icon_name (void)
{
return default_icon_name;
}
#define INCLUDE_CSD_SIZE 1
#define EXCLUDE_CSD_SIZE -1
static void
gtk_window_update_csd_size (GtkWindow *window,
gint *width,
gint *height,
gint apply)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkBorder window_border = { 0 };
gint w, h;
if (!priv->decorated ||
priv->fullscreen)
return;
get_shadow_width (window, &window_border);
w = *width + apply * (window_border.left + window_border.right);
h = *height + apply * (window_border.top + window_border.bottom);
if (priv->title_box != NULL &&
gtk_widget_get_visible (priv->title_box) &&
gtk_widget_get_child_visible (priv->title_box))
{
gint minimum_height;
gint natural_height;
gtk_widget_measure (priv->title_box, GTK_ORIENTATION_VERTICAL, -1,
&minimum_height, &natural_height,
NULL, NULL);
h += apply * natural_height;
}
/* Make sure the size remains acceptable */
if (w < 1)
w = 1;
if (h < 1)
h = 1;
/* Only update given size if not negative */
if (*width > -1)
*width = w;
if (*height > -1)
*height = h;
}
static void
gtk_window_set_default_size_internal (GtkWindow *window,
gboolean change_width,
gint width,
gboolean change_height,
gint height)
{
GtkWindowGeometryInfo *info;
g_return_if_fail (change_width == FALSE || width >= -1);
g_return_if_fail (change_height == FALSE || height >= -1);
info = gtk_window_get_geometry_info (window, TRUE);
g_object_freeze_notify (G_OBJECT (window));
if (change_width)
{
if (width == 0)
width = 1;
if (width < 0)
width = -1;
if (info->default_width != width)
{
info->default_width = width;
g_object_notify_by_pspec (G_OBJECT (window), window_props[PROP_DEFAULT_WIDTH]);
}
}
if (change_height)
{
if (height == 0)
height = 1;
if (height < 0)
height = -1;
if (info->default_height != height)
{
info->default_height = height;
g_object_notify_by_pspec (G_OBJECT (window), window_props[PROP_DEFAULT_HEIGHT]);
}
}
g_object_thaw_notify (G_OBJECT (window));
gtk_widget_queue_resize (GTK_WIDGET (window));
}
/**
* gtk_window_set_default_size:
* @window: a #GtkWindow
* @width: width in pixels, or -1 to unset the default width
* @height: height in pixels, or -1 to unset the default height
*
* Sets the default size of a window. If the window’s “natural” size
* (its size request) is larger than the default, the default will be
* ignored.
*
* Unlike gtk_widget_set_size_request(), which sets a size request for
* a widget and thus would keep users from shrinking the window, this
* function only sets the initial size, just as if the user had
* resized the window themselves. Users can still shrink the window
* again as they normally would. Setting a default size of -1 means to
* use the “natural” default size (the size request of the window).
*
* For some uses, gtk_window_resize() is a more appropriate function.
* gtk_window_resize() changes the current size of the window, rather
* than the size to be used on initial display. gtk_window_resize() always
* affects the window itself, not the geometry widget.
*
* The default size of a window only affects the first time a window is
* shown; if a window is hidden and re-shown, it will remember the size
* it had prior to hiding, rather than using the default size.
*
* Windows can’t actually be 0x0 in size, they must be at least 1x1, but
* passing 0 for @width and @height is OK, resulting in a 1x1 default size.
*
* If you use this function to reestablish a previously saved window size,
* note that the appropriate size to save is the one returned by
* gtk_window_get_size(). Using the window allocation directly will not
* work in all circumstances and can lead to growing or shrinking windows.
*/
void
gtk_window_set_default_size (GtkWindow *window,
gint width,
gint height)
{
g_return_if_fail (GTK_IS_WINDOW (window));
g_return_if_fail (width >= -1);
g_return_if_fail (height >= -1);
gtk_window_set_default_size_internal (window, TRUE, width, TRUE, height);
}
/**
* gtk_window_get_default_size:
* @window: a #GtkWindow
* @width: (out) (allow-none): location to store the default width, or %NULL
* @height: (out) (allow-none): location to store the default height, or %NULL
*
* Gets the default size of the window. A value of -1 for the width or
* height indicates that a default size has not been explicitly set
* for that dimension, so the “natural” size of the window will be
* used.
*
**/
void
gtk_window_get_default_size (GtkWindow *window,
gint *width,
gint *height)
{
GtkWindowGeometryInfo *info;
g_return_if_fail (GTK_IS_WINDOW (window));
info = gtk_window_get_geometry_info (window, FALSE);
if (width)
*width = info ? info->default_width : -1;
if (height)
*height = info ? info->default_height : -1;
}
/**
* gtk_window_resize:
* @window: a #GtkWindow
* @width: width in pixels to resize the window to
* @height: height in pixels to resize the window to
*
* Resizes the window as if the user had done so, obeying geometry
* constraints. The default geometry constraint is that windows may
* not be smaller than their size request; to override this
* constraint, call gtk_widget_set_size_request() to set the window's
* request to a smaller value.
*
* If gtk_window_resize() is called before showing a window for the
* first time, it overrides any default size set with
* gtk_window_set_default_size().
*
* Windows may not be resized smaller than 1 by 1 pixels.
*
* When using client side decorations, GTK+ will do its best to adjust
* the given size so that the resulting window size matches the
* requested size without the title bar, borders and shadows added for
* the client side decorations, but there is no guarantee that the
* result will be totally accurate because these widgets added for
* client side decorations depend on the theme and may not be realized
* or visible at the time gtk_window_resize() is issued.
*
* If the GtkWindow has a titlebar widget (see gtk_window_set_titlebar()), then
* typically, gtk_window_resize() will compensate for the height of the titlebar
* widget only if the height is known when the resulting GtkWindow configuration
* is issued.
* For example, if new widgets are added after the GtkWindow configuration
* and cause the titlebar widget to grow in height, this will result in a
* window content smaller that specified by gtk_window_resize() and not
* a larger window.
*
**/
void
gtk_window_resize (GtkWindow *window,
gint width,
gint height)
{
GtkWindowGeometryInfo *info;
g_return_if_fail (GTK_IS_WINDOW (window));
g_return_if_fail (width > 0);
g_return_if_fail (height > 0);
info = gtk_window_get_geometry_info (window, TRUE);
info->resize_width = width;
info->resize_height = height;
gtk_widget_queue_resize (GTK_WIDGET (window));
}
/**
* gtk_window_get_size:
* @window: a #GtkWindow
* @width: (out) (optional): return location for width, or %NULL
* @height: (out) (optional): return location for height, or %NULL
*
* Obtains the current size of @window.
*
* If @window is not visible on screen, this function return the size GTK+
* will suggest to the [window manager][gtk-X11-arch] for the initial window
* size (but this is not reliably the same as the size the window manager
* will actually select). See: gtk_window_set_default_size().
*
* Depending on the windowing system and the window manager constraints,
* the size returned by this function may not match the size set using
* gtk_window_resize(); additionally, since gtk_window_resize() may be
* implemented as an asynchronous operation, GTK+ cannot guarantee in any
* way that this code:
*
* |[<!-- language="C" -->
* GtkWindow *window = GTK_WINDOW (gtk_window_new ());
* int width = 500;
* int height = 300;
* gtk_window_resize (window, width, height);
*
* int new_width, new_height;
* gtk_window_get_size (window, &new_width, &new_height);
* ]|
*
* will result in `new_width` and `new_height` matching `width` and
* `height`, respectively.
*
* This function will return the logical size of the #GtkWindow,
* excluding the widgets used in client side decorations; there is,
* however, no guarantee that the result will be completely accurate
* because client side decoration may include widgets that depend on
* the user preferences and that may not be visibile at the time you
* call this function.
*
* The dimensions returned by this function are suitable for being
* stored across sessions; use gtk_window_set_default_size() to
* restore them when before showing the window.
*
* To avoid potential race conditions, you should only call this
* function in response to a size change notification, for instance
* inside a handler for the #GtkWidget::size-allocate signal, or
* inside a handler for the #GtkWidget::configure-event signal:
*
* |[<!-- language="C" -->
* static void
* on_size_allocate (GtkWidget *widget,
* const GtkAllocation *allocation,
* int baseline)
* {
* int new_width, new_height;
*
* gtk_window_get_size (GTK_WINDOW (widget), &new_width, &new_height);
*
* // ...
* }
* ]|
*
* Note that, if you connect to the #GtkWidget::size-allocate signal,
* you should not use the dimensions of the #GtkAllocation passed to
* the signal handler, as the allocation may contain client side
* decorations added by GTK+, depending on the windowing system in
* use.
*
* If you are getting a window size in order to position the window
* on the screen, you should, instead, simply set the window’s semantic
* type with gtk_window_set_type_hint(), which allows the window manager
* to e.g. center dialogs. Also, if you set the transient parent of
* dialogs with gtk_window_set_transient_for() window managers will
* often center the dialog over its parent window. It's much preferred
* to let the window manager handle these cases rather than doing it
* yourself, because all apps will behave consistently and according to
* user or system preferences, if the window manager handles it. Also,
* the window manager can take into account the size of the window
* decorations and border that it may add, and of which GTK+ has no
* knowledge. Additionally, positioning windows in global screen coordinates
* may not be allowed by the windowing system. For more information,
* see: gtk_window_set_position().
*/
void
gtk_window_get_size (GtkWindow *window,
gint *width,
gint *height)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
gint w, h;
g_return_if_fail (GTK_IS_WINDOW (window));
if (width == NULL && height == NULL)
return;
if (_gtk_widget_get_mapped (GTK_WIDGET (window)))
{
w = gdk_surface_get_width (priv->surface);
h = gdk_surface_get_height (priv->surface);
}
else
{
GdkRectangle configure_request;
gtk_window_compute_configure_request (window,
&configure_request,
NULL, NULL);
w = configure_request.width;
h = configure_request.height;
}
gtk_window_update_csd_size (window, &w, &h, EXCLUDE_CSD_SIZE);
if (width)
*width = w;
if (height)
*height = h;
}
static void
gtk_window_destroy (GtkWidget *widget)
{
GtkWindow *window = GTK_WINDOW (widget);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
guint i;
gtk_window_release_application (window);
for (i = 0; i < g_list_model_get_n_items (G_LIST_MODEL (toplevel_list)); i++)
{
gpointer item = g_list_model_get_item (G_LIST_MODEL (toplevel_list), i);
if (item == window)
{
g_list_store_remove (toplevel_list, i);
break;
}
else
g_object_unref (item);
}
if (priv->transient_parent)
gtk_window_set_transient_for (window, NULL);
remove_attach_widget (window);
if (priv->has_user_ref_count)
{
priv->has_user_ref_count = FALSE;
g_object_unref (window);
}
if (priv->group)
gtk_window_group_remove_window (priv->group, window);
if (priv->restyle_pending)
priv->restyle_pending = FALSE;
GTK_WIDGET_CLASS (gtk_window_parent_class)->destroy (widget);
}
static gboolean
gtk_window_close_request (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (priv->hide_on_close)
{
gtk_widget_hide (GTK_WIDGET (window));
return TRUE;
}
return FALSE;
}
gboolean
gtk_window_emit_close_request (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
gboolean handled;
/* Avoid re-entrancy issues when calling gtk_window_close from a
* close-request handler */
if (priv->in_emit_close_request)
return TRUE;
priv->in_emit_close_request = TRUE;
g_signal_emit (window, window_signals[CLOSE_REQUEST], 0, &handled);
priv->in_emit_close_request = FALSE;
return handled;
}
static void
gtk_window_finalize (GObject *object)
{
GtkWindow *window = GTK_WINDOW (object);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_clear_pointer (&priv->extra_input_region, cairo_region_destroy);
g_free (priv->title);
gtk_window_release_application (window);
if (priv->geometry_info)
{
g_free (priv->geometry_info);
}
if (priv->keys_changed_handler)
{
g_source_remove (priv->keys_changed_handler);
priv->keys_changed_handler = 0;
}
g_signal_handlers_disconnect_by_func (gdk_display_get_default_seat (priv->display),
device_removed_cb,
window);
#ifdef GDK_WINDOWING_X11
g_signal_handlers_disconnect_by_func (gtk_settings_get_for_display (priv->display),
gtk_window_on_theme_variant_changed,
window);
#endif
g_free (priv->startup_id);
if (priv->mnemonics_display_timeout_id)
{
g_source_remove (priv->mnemonics_display_timeout_id);
priv->mnemonics_display_timeout_id = 0;
}
g_clear_object (&priv->constraint_solver);
g_clear_object (&priv->renderer);
g_clear_object (&priv->resize_cursor);
G_OBJECT_CLASS (gtk_window_parent_class)->finalize (object);
}
/* copied from gdksurface-x11.c */
static const gchar *
get_default_title (void)
{
const gchar *title;
title = g_get_application_name ();
if (!title)
title = g_get_prgname ();
if (!title)
title = "";
return title;
}
static gboolean
update_csd_visibility (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
gboolean visible;
if (priv->title_box == NULL)
return FALSE;
visible = !priv->fullscreen &&
priv->decorated;
gtk_widget_set_child_visible (priv->title_box, visible);
return visible;
}
static void
update_window_buttons (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (!update_csd_visibility (window))
return;
if (GTK_IS_HEADER_BAR (priv->title_box))
_gtk_header_bar_update_window_buttons (GTK_HEADER_BAR (priv->title_box));
}
static GtkWidget *
create_titlebar (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWidget *titlebar;
titlebar = gtk_header_bar_new ();
g_object_set (titlebar,
"title", priv->title ? priv->title : get_default_title (),
"has-subtitle", FALSE,
"show-title-buttons", TRUE,
NULL);
gtk_widget_add_css_class (titlebar, GTK_STYLE_CLASS_TITLEBAR);
gtk_widget_add_css_class (titlebar, "default-decoration");
return titlebar;
}
void
_gtk_window_request_csd (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
priv->csd_requested = TRUE;
}
static gboolean
gtk_window_should_use_csd (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
const gchar *csd_env;
if (priv->csd_requested)
return TRUE;
if (!priv->decorated)
return FALSE;
csd_env = g_getenv ("GTK_CSD");
#ifdef GDK_WINDOWING_BROADWAY
if (GDK_IS_BROADWAY_DISPLAY (gtk_widget_get_display (GTK_WIDGET (window))))
return TRUE;
#endif
#ifdef GDK_WINDOWING_WAYLAND
if (GDK_IS_WAYLAND_DISPLAY (gtk_widget_get_display (GTK_WIDGET (window))))
{
GdkDisplay *gdk_display = gtk_widget_get_display (GTK_WIDGET (window));
return !gdk_wayland_display_prefers_ssd (gdk_display);
}
#endif
#ifdef GDK_WINDOWING_WIN32
if (g_strcmp0 (csd_env, "0") != 0 &&
GDK_IS_WIN32_DISPLAY (gtk_widget_get_display (GTK_WIDGET (window))))
return TRUE;
#endif
return (g_strcmp0 (csd_env, "1") == 0);
}
static void
create_decoration (GtkWidget *widget)
{
GtkWindow *window = GTK_WINDOW (widget);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
priv->use_client_shadow = gtk_window_supports_client_shadow (window);
if (!priv->use_client_shadow)
return;
gtk_window_enable_csd (window);
if (priv->title_box == NULL)
{
priv->titlebar = create_titlebar (window);
gtk_widget_set_parent (priv->titlebar, widget);
priv->title_box = priv->titlebar;
}
update_window_buttons (window);
}
static void
gtk_window_show (GtkWidget *widget)
{
GtkWindow *window = GTK_WINDOW (widget);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
_gtk_widget_set_visible_flag (widget, TRUE);
gtk_css_node_validate (gtk_widget_get_css_node (widget));
gtk_widget_realize (widget);
gtk_window_check_resize (window);
gtk_widget_map (widget);
if (!priv->focus_widget)
gtk_window_move_focus (widget, GTK_DIR_TAB_FORWARD);
if (priv->modal)
gtk_grab_add (widget);
}
static void
gtk_window_hide (GtkWidget *widget)
{
GtkWindow *window = GTK_WINDOW (widget);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
_gtk_widget_set_visible_flag (widget, FALSE);
gtk_widget_unmap (widget);
if (priv->modal)
gtk_grab_remove (widget);
}
static GdkToplevelLayout *
gtk_window_compute_layout (GtkWindow *window,
int min_width,
int min_height)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GdkToplevelLayout *layout;
layout = gdk_toplevel_layout_new (min_width, min_height);
gdk_toplevel_layout_set_resizable (layout, priv->resizable);
gdk_toplevel_layout_set_maximized (layout, priv->maximize_initially);
gdk_toplevel_layout_set_fullscreen (layout,
priv->fullscreen_initially,
priv->initial_fullscreen_monitor);
return layout;
}
static void
gtk_window_present_toplevel (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GdkRectangle request;
GdkGeometry geometry;
GdkSurfaceHints flags;
gtk_window_compute_configure_request (window, &request,
&geometry, &flags);
if (!(flags & GDK_HINT_MIN_SIZE))
geometry.min_width = geometry.min_height = 1;
if (!priv->layout)
priv->layout = gtk_window_compute_layout (window, geometry.min_width, geometry.min_height);
gdk_toplevel_present (GDK_TOPLEVEL (priv->surface),
request.width,
request.height,
priv->layout);
}
static void
gtk_window_update_toplevel (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (priv->surface && gdk_surface_get_mapped (priv->surface))
{
int min_width = 1;
int min_height = 1;
if (priv->layout)
{
min_width = gdk_toplevel_layout_get_min_width (priv->layout);
min_height = gdk_toplevel_layout_get_min_height (priv->layout);
}
g_clear_pointer (&priv->layout, gdk_toplevel_layout_unref);
priv->layout = gtk_window_compute_layout (window, min_width, min_height);
gdk_toplevel_present (GDK_TOPLEVEL (priv->surface),
gdk_surface_get_width (priv->surface),
gdk_surface_get_height (priv->surface),
priv->layout);
}
}
static void
gtk_window_map (GtkWidget *widget)
{
GtkWidget *child;
GtkWindow *window = GTK_WINDOW (widget);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GTK_WIDGET_CLASS (gtk_window_parent_class)->map (widget);
child = gtk_bin_get_child (GTK_BIN (window));
if (child != NULL && gtk_widget_get_visible (child))
gtk_widget_map (child);
if (priv->title_box != NULL &&
gtk_widget_get_visible (priv->title_box) &&
gtk_widget_get_child_visible (priv->title_box))
gtk_widget_map (priv->title_box);
gtk_window_present_toplevel (window);
if (priv->minimize_initially)
gdk_toplevel_minimize (GDK_TOPLEVEL (priv->surface));
gtk_window_set_theme_variant (window);
/* No longer use the default settings */
priv->need_default_size = FALSE;
if (!disable_startup_notification)
{
/* Do we have a custom startup-notification id? */
if (priv->startup_id != NULL)
{
/* Make sure we have a "real" id */
if (!startup_id_is_fake (priv->startup_id))
gdk_display_notify_startup_complete (gtk_widget_get_display (widget), priv->startup_id);
g_free (priv->startup_id);
priv->startup_id = NULL;
}
else
gdk_display_notify_startup_complete (gtk_widget_get_display (widget), NULL);
}
/* inherit from transient parent, so that a dialog that is
* opened via keynav shows focus initially
*/
if (priv->transient_parent)
gtk_window_set_focus_visible (window, gtk_window_get_focus_visible (priv->transient_parent));
else
gtk_window_set_focus_visible (window, FALSE);
if (priv->application)
gtk_application_handle_window_map (priv->application, window);
}
static void
gtk_window_unmap (GtkWidget *widget)
{
GtkWindow *window = GTK_WINDOW (widget);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWidget *child;
GdkSurfaceState state;
GTK_WIDGET_CLASS (gtk_window_parent_class)->unmap (widget);
gdk_surface_hide (priv->surface);
while (priv->configure_request_count > 0)
{
priv->configure_request_count--;
gdk_surface_thaw_toplevel_updates (priv->surface);
}
priv->configure_notify_received = FALSE;
state = gdk_toplevel_get_state (GDK_TOPLEVEL (priv->surface));
priv->minimize_initially = (state & GDK_SURFACE_STATE_MINIMIZED) != 0;
priv->maximize_initially = (state & GDK_SURFACE_STATE_MAXIMIZED) != 0;
if (priv->title_box != NULL)
gtk_widget_unmap (priv->title_box);
child = gtk_bin_get_child (GTK_BIN (window));
if (child != NULL)
gtk_widget_unmap (child);
}
/* (Note: Replace "size" with "width" or "height". Also, the request
* mode is honoured.)
* For selecting the default window size, the following conditions
* should hold (in order of importance):
* - the size is not below the minimum size
* Windows cannot be resized below their minimum size, so we must
* ensure we don’t do that either.
* - the size is not above the natural size
* It seems weird to allocate more than this in an initial guess.
* - the size does not exceed that of a maximized window
* We want to see the whole window after all.
* (Note that this may not be possible to achieve due to imperfect
* information from the windowing system.)
*/
static void
gtk_window_guess_default_size (GtkWindow *window,
gint *width,
gint *height)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWidget *widget;
GdkSurface *surface;
GdkDisplay *display;
GdkMonitor *monitor;
GdkRectangle workarea;
int minimum, natural;
widget = GTK_WIDGET (window);
display = gtk_widget_get_display (widget);
surface = priv->surface;
if (surface)
monitor = gdk_display_get_monitor_at_surface (display, surface);
else
monitor = gdk_display_get_monitor (display, 0);
gdk_monitor_get_workarea (monitor, &workarea);
*width = workarea.width;
*height = workarea.height;
if (gtk_widget_get_request_mode (widget) == GTK_SIZE_REQUEST_WIDTH_FOR_HEIGHT)
{
gtk_widget_measure (widget, GTK_ORIENTATION_VERTICAL, -1,
&minimum, &natural,
NULL, NULL);
*height = MAX (minimum, MIN (*height, natural));
gtk_widget_measure (widget, GTK_ORIENTATION_HORIZONTAL,
*height,
&minimum, &natural,
NULL, NULL);
*width = MAX (minimum, MIN (*width, natural));
}
else /* GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH or CONSTANT_SIZE */
{
gtk_widget_measure (widget, GTK_ORIENTATION_HORIZONTAL, -1,
&minimum, &natural,
NULL, NULL);
*width = MAX (minimum, MIN (*width, natural));
gtk_widget_measure (widget, GTK_ORIENTATION_VERTICAL,
*width,
&minimum, &natural,
NULL, NULL);
*height = MAX (minimum, MIN (*height, natural));
}
}
static void
gtk_window_get_remembered_size (GtkWindow *window,
int *width,
int *height)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWindowGeometryInfo *info;
*width = 0;
*height = 0;
if (priv->surface)
{
*width = gdk_surface_get_width (priv->surface);
*height = gdk_surface_get_height (priv->surface);
return;
}
info = gtk_window_get_geometry_info (window, FALSE);
if (info)
{
/* MAX() works even if the last request is unset with -1 */
*width = MAX (*width, info->last.configure_request.width);
*height = MAX (*height, info->last.configure_request.height);
}
}
static void
check_scale_changed (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWidget *widget = GTK_WIDGET (window);
int old_scale;
old_scale = priv->scale;
priv->scale = gtk_widget_get_scale_factor (widget);
if (old_scale != priv->scale)
_gtk_widget_scale_changed (widget);
}
static void
sum_borders (GtkBorder *one,
GtkBorder *two)
{
one->top += two->top;
one->right += two->right;
one->bottom += two->bottom;
one->left += two->left;
}
static void
max_borders (GtkBorder *one,
GtkBorder *two)
{
one->top = MAX (one->top, two->top);
one->right = MAX (one->right, two->right);
one->bottom = MAX (one->bottom, two->bottom);
one->left = MAX (one->left, two->left);
}
static void
subtract_borders (GtkBorder *one,
GtkBorder *two)
{
one->top -= two->top;
one->right -= two->right;
one->bottom -= two->bottom;
one->left -= two->left;
}
static void
get_shadow_width (GtkWindow *window,
GtkBorder *shadow_width)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkBorder border = { 0 };
GtkBorder d = { 0 };
GtkBorder margin;
GtkStyleContext *context;
GtkCssValue *shadows;
*shadow_width = border;
if (!priv->decorated)
return;
if (!priv->client_decorated &&
!(gtk_window_should_use_csd (window) &&
gtk_window_supports_client_shadow (window)))
return;
if (priv->maximized ||
priv->fullscreen)
return;
context = _gtk_widget_get_style_context (GTK_WIDGET (window));
gtk_style_context_save_to_node (context, priv->decoration_node);
/* Always sum border + padding */
gtk_style_context_get_border (context, &border);
gtk_style_context_get_padding (context, &d);
sum_borders (&d, &border);
/* Calculate the size of the drop shadows ... */
shadows = _gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_BOX_SHADOW);
gtk_css_shadow_value_get_extents (shadows, &border);
/* ... and compare it to the margin size, which we use for resize grips */
gtk_style_context_get_margin (context, &margin);
max_borders (&border, &margin);
sum_borders (&d, &border);
*shadow_width = d;
gtk_style_context_restore (context);
}
static void
update_csd_shape (GtkWindow *window)
{
GtkWidget *widget = (GtkWidget *)window;
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
cairo_rectangle_int_t rect;
GtkBorder border, tmp;
GtkBorder window_border;
GtkStyleContext *context;
if (!priv->client_decorated)
return;
context = _gtk_widget_get_style_context (widget);
gtk_style_context_save_to_node (context, priv->decoration_node);
gtk_style_context_get_margin (context, &border);
gtk_style_context_get_border (context, &tmp);
sum_borders (&border, &tmp);
gtk_style_context_get_padding (context, &tmp);
sum_borders (&border, &tmp);
gtk_style_context_restore (context);
get_shadow_width (window, &window_border);
/* update the input shape, which makes it so that clicks
* outside the border windows go through.
*/
subtract_borders (&window_border, &border);
rect.x = window_border.left;
rect.y = window_border.top;
rect.width = gtk_widget_get_allocated_width (widget) - window_border.left - window_border.right;
rect.height = gtk_widget_get_allocated_height (widget) - window_border.top - window_border.bottom;
if (rect.width > 0 && rect.height > 0)
{
cairo_region_t *region = cairo_region_create_rectangle (&rect);
if (priv->extra_input_region)
cairo_region_intersect (region, priv->extra_input_region);
gdk_surface_set_input_region (priv->surface, region);
cairo_region_destroy (region);
}
}
void
gtk_window_set_extra_input_region (GtkWindow *window,
cairo_region_t *region)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_clear_pointer (&priv->extra_input_region, cairo_region_destroy);
priv->extra_input_region = cairo_region_copy (region);
update_csd_shape (window);
}
static void
corner_rect (cairo_rectangle_int_t *rect,
const GtkCssValue *value)
{
rect->width = _gtk_css_corner_value_get_x (value, 100);
rect->height = _gtk_css_corner_value_get_y (value, 100);
}
static void
subtract_decoration_corners_from_region (cairo_region_t *region,
cairo_rectangle_int_t *extents,
GtkStyleContext *context,
GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
cairo_rectangle_int_t rect;
if (!priv->client_decorated ||
!priv->decorated ||
priv->fullscreen ||
priv->maximized)
return;
gtk_style_context_save_to_node (context, priv->decoration_node);
corner_rect (&rect, _gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_BORDER_TOP_LEFT_RADIUS));
rect.x = extents->x;
rect.y = extents->y;
cairo_region_subtract_rectangle (region, &rect);
corner_rect (&rect, _gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_BORDER_TOP_RIGHT_RADIUS));
rect.x = extents->x + extents->width - rect.width;
rect.y = extents->y;
cairo_region_subtract_rectangle (region, &rect);
corner_rect (&rect, _gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_BORDER_BOTTOM_LEFT_RADIUS));
rect.x = extents->x;
rect.y = extents->y + extents->height - rect.height;
cairo_region_subtract_rectangle (region, &rect);
corner_rect (&rect, _gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_BORDER_BOTTOM_RIGHT_RADIUS));
rect.x = extents->x + extents->width - rect.width;
rect.y = extents->y + extents->height - rect.height;
cairo_region_subtract_rectangle (region, &rect);
gtk_style_context_restore (context);
}
static void
update_opaque_region (GtkWindow *window,
const GtkBorder *border,
const GtkAllocation *allocation)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWidget *widget = GTK_WIDGET (window);
cairo_region_t *opaque_region;
GtkStyleContext *context;
gboolean is_opaque = FALSE;
if (!_gtk_widget_get_realized (widget))
return;
context = gtk_widget_get_style_context (widget);
is_opaque = gdk_rgba_is_opaque (gtk_css_color_value_get_rgba (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_BACKGROUND_COLOR)));
if (gtk_widget_get_opacity (widget) < 1.0)
is_opaque = FALSE;
if (is_opaque)
{
cairo_rectangle_int_t rect;
rect.x = border->left;
rect.y = border->top;
rect.width = allocation->width - border->left - border->right;
rect.height = allocation->height - border->top - border->bottom;
opaque_region = cairo_region_create_rectangle (&rect);
subtract_decoration_corners_from_region (opaque_region, &rect, context, window);
}
else
{
opaque_region = NULL;
}
gdk_surface_set_opaque_region (priv->surface, opaque_region);
cairo_region_destroy (opaque_region);
}
static void
update_realized_window_properties (GtkWindow *window,
GtkAllocation *child_allocation,
GtkBorder *window_border)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (priv->surface && priv->client_decorated && priv->use_client_shadow)
gdk_surface_set_shadow_width (priv->surface,
window_border->left,
window_border->right,
window_border->top,
window_border->bottom);
update_opaque_region (window, window_border, child_allocation);
update_csd_shape (window);
}
static void
gtk_window_realize (GtkWidget *widget)
{
GtkWindow *window = GTK_WINDOW (widget);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkAllocation allocation;
GtkAllocation child_allocation;
GdkSurface *surface;
GtkBorder window_border;
if (!priv->client_decorated && gtk_window_should_use_csd (window))
create_decoration (widget);
/* ensure widget tree is properly size allocated */
if (_gtk_widget_get_alloc_needed (widget))
{
GdkRectangle request;
gtk_window_compute_configure_request (window, &request, NULL, NULL);
allocation.x = 0;
allocation.y = 0;
allocation.width = request.width;
allocation.height = request.height;
gtk_widget_size_allocate (widget, &allocation, -1);
gtk_widget_queue_resize (widget);
g_return_if_fail (!_gtk_widget_get_realized (widget));
}
gtk_widget_get_allocation (widget, &allocation);
surface = gdk_surface_new_toplevel (gtk_widget_get_display (widget),
MAX (1, allocation.width),
MAX (1, allocation.height));
priv->surface = surface;
gdk_surface_set_widget (surface, widget);
g_signal_connect_swapped (surface, "notify::state", G_CALLBACK (surface_state_changed), widget);
g_signal_connect_swapped (surface, "size-changed", G_CALLBACK (surface_size_changed), widget);
g_signal_connect (surface, "render", G_CALLBACK (surface_render), widget);
g_signal_connect (surface, "event", G_CALLBACK (surface_event), widget);
GTK_WIDGET_CLASS (gtk_window_parent_class)->realize (widget);
gtk_window_start_layout (window);
if (priv->renderer == NULL)
priv->renderer = gsk_renderer_new_for_surface (surface);
if (priv->transient_parent &&
_gtk_widget_get_realized (GTK_WIDGET (priv->transient_parent)))
{
GtkWindowPrivate *parent_priv = gtk_window_get_instance_private (priv->transient_parent);
gdk_toplevel_set_transient_for (GDK_TOPLEVEL (surface), parent_priv->surface);
}
if (priv->title)
gdk_toplevel_set_title (GDK_TOPLEVEL (surface), priv->title);
gdk_toplevel_set_decorated (GDK_TOPLEVEL (surface), priv->decorated && !priv->client_decorated);
gdk_toplevel_set_deletable (GDK_TOPLEVEL (surface), priv->deletable);
#ifdef GDK_WINDOWING_WAYLAND
if (priv->client_decorated && GDK_IS_WAYLAND_SURFACE (surface))
gdk_wayland_surface_announce_csd (surface);
#endif
gdk_toplevel_set_modal (GDK_TOPLEVEL (surface), priv->modal);
if (priv->startup_id)
{
#ifdef GDK_WINDOWING_X11
if (GDK_IS_X11_SURFACE (surface))
{
guint32 timestamp = extract_time_from_startup_id (priv->startup_id);
if (timestamp != GDK_CURRENT_TIME)
gdk_x11_surface_set_user_time (surface, timestamp);
}
#endif
if (!startup_id_is_fake (priv->startup_id))
gdk_toplevel_set_startup_id (GDK_TOPLEVEL (surface), priv->startup_id);
}
#ifdef GDK_WINDOWING_X11
if (priv->initial_timestamp != GDK_CURRENT_TIME)
{
if (GDK_IS_X11_SURFACE (surface))
gdk_x11_surface_set_user_time (surface, priv->initial_timestamp);
}
#endif
child_allocation.x = 0;
child_allocation.y = 0;
child_allocation.width = allocation.width;
child_allocation.height = allocation.height;
get_shadow_width (window, &window_border);
update_realized_window_properties (window, &child_allocation, &window_border);
if (priv->application)
gtk_application_handle_window_realize (priv->application, window);
/* Icons */
gtk_window_realize_icon (window);
check_scale_changed (window);
}
static void
gtk_window_unrealize (GtkWidget *widget)
{
GtkWindow *window = GTK_WINDOW (widget);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWindowGeometryInfo *info;
GdkSurface *surface;
/* On unrealize, we reset the size of the window such
* that we will re-apply the default sizing stuff
* next time we show the window.
*
* Default positioning is reset on unmap, instead of unrealize.
*/
priv->need_default_size = TRUE;
info = gtk_window_get_geometry_info (window, FALSE);
if (info)
{
info->resize_width = -1;
info->resize_height = -1;
info->last.configure_request.x = 0;
info->last.configure_request.y = 0;
info->last.configure_request.width = -1;
info->last.configure_request.height = -1;
/* be sure we reset geom hints on re-realize */
info->last.flags = 0;
}
gsk_renderer_unrealize (priv->renderer);
if (priv->popup_menu)
{
gtk_widget_destroy (priv->popup_menu);
priv->popup_menu = NULL;
}
/* Icons */
gtk_window_unrealize_icon (window);
gtk_container_forall (GTK_CONTAINER (widget),
(GtkCallback) gtk_widget_unrealize,
NULL);
g_clear_object (&priv->renderer);
surface = priv->surface;
g_signal_handlers_disconnect_by_func (surface, surface_state_changed, widget);
g_signal_handlers_disconnect_by_func (surface, surface_size_changed, widget);
g_signal_handlers_disconnect_by_func (surface, surface_render, widget);
g_signal_handlers_disconnect_by_func (surface, surface_event, widget);
gtk_window_stop_layout (window);
GTK_WIDGET_CLASS (gtk_window_parent_class)->unrealize (widget);
gdk_surface_set_widget (surface, NULL);
gdk_surface_destroy (surface);
g_clear_object (&priv->surface);
}
static void
update_window_style_classes (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWidget *widget = GTK_WIDGET (window);
guint edge_constraints;
edge_constraints = priv->edge_constraints;
if (!priv->edge_constraints)
{
if (priv->tiled)
gtk_widget_add_css_class (widget, "titled");
else
gtk_widget_remove_css_class (widget, "tiled");
}
else
{
if (edge_constraints & GDK_SURFACE_STATE_TOP_TILED)
gtk_widget_add_css_class (widget, "titled-top");
else
gtk_widget_remove_css_class (widget, "tiled-top");
if (edge_constraints & GDK_SURFACE_STATE_RIGHT_TILED)
gtk_widget_add_css_class (widget, "titled-right");
else
gtk_widget_remove_css_class (widget, "tiled-right");
if (edge_constraints & GDK_SURFACE_STATE_BOTTOM_TILED)
gtk_widget_add_css_class (widget, "titled-bottom");
else
gtk_widget_remove_css_class (widget, "tiled-bottom");
if (edge_constraints & GDK_SURFACE_STATE_LEFT_TILED)
gtk_widget_add_css_class (widget, "titled-left");
else
gtk_widget_remove_css_class (widget, "tiled-left");
}
if (priv->maximized)
gtk_widget_add_css_class (widget, "maximized");
else
gtk_widget_remove_css_class (widget, "maximized");
if (priv->fullscreen)
gtk_widget_add_css_class (widget, "fullscreen");
else
gtk_widget_remove_css_class (widget, "fullscreen");
}
/* _gtk_window_set_allocation:
* @window: a #GtkWindow
* @allocation: the original allocation for the window
* @allocation_out: @allocation taking decorations into
* consideration
*
* This function is like gtk_widget_set_allocation()
* but does the necessary extra work to update
* the resize grip positioning, etc.
*
* Call this instead of gtk_widget_set_allocation()
* when overriding ::size_allocate in a GtkWindow
* subclass without chaining up.
*
* The @allocation parameter will be adjusted to
* reflect any internal decorations that the window
* may have. That revised allocation will then be
* returned in the @allocation_out parameter.
*/
void
_gtk_window_set_allocation (GtkWindow *window,
int width,
int height,
GtkAllocation *allocation_out)
{
GtkWidget *widget = (GtkWidget *)window;
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkAllocation child_allocation;
GtkBorder window_border = { 0 };
g_assert (allocation_out != NULL);
child_allocation.x = 0;
child_allocation.y = 0;
child_allocation.width = width;
child_allocation.height = height;
get_shadow_width (window, &window_border);
if (_gtk_widget_get_realized (widget))
update_realized_window_properties (window, &child_allocation, &window_border);
priv->title_height = 0;
if (priv->title_box != NULL &&
gtk_widget_get_visible (priv->title_box) &&
gtk_widget_get_child_visible (priv->title_box) &&
priv->decorated &&
!priv->fullscreen)
{
GtkAllocation title_allocation;
title_allocation.x = window_border.left;
title_allocation.y = window_border.top;
title_allocation.width = MAX (1, width - window_border.left - window_border.right);
gtk_widget_measure (priv->title_box, GTK_ORIENTATION_VERTICAL,
title_allocation.width,
NULL, &priv->title_height,
NULL, NULL);
title_allocation.height = priv->title_height;
gtk_widget_size_allocate (priv->title_box, &title_allocation, -1);
}
if (priv->decorated &&
!priv->fullscreen)
{
child_allocation.x += window_border.left;
child_allocation.y += window_border.top + priv->title_height;
child_allocation.width -= window_border.left + window_border.right;
child_allocation.height -= window_border.top + window_border.bottom +
priv->title_height;
}
*allocation_out = child_allocation;
}
static void
gtk_window_size_allocate (GtkWidget *widget,
int width,
int height,
int baseline)
{
GtkWindow *window = GTK_WINDOW (widget);
GtkWidget *child;
GtkAllocation child_allocation;
_gtk_window_set_allocation (window, width, height, &child_allocation);
child = gtk_bin_get_child (GTK_BIN (window));
if (child && gtk_widget_get_visible (child))
gtk_widget_size_allocate (child, &child_allocation, -1);
}
gboolean
gtk_window_configure (GtkWindow *window,
guint width,
guint height)
{
GtkAllocation allocation;
GtkWidget *widget = GTK_WIDGET (window);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
check_scale_changed (window);
/* If this is a gratuitous ConfigureNotify that's already
* the same as our allocation, then we can fizzle it out.
* This is the case for dragging windows around.
*
* We can't do this for a ConfigureRequest, since it might
* have been a queued resize from child widgets, and so we
* need to reallocate our children in case *they* changed.
*/
gtk_widget_get_allocation (widget, &allocation);
if (priv->configure_request_count == 0 &&
(allocation.width == width && allocation.height == height))
{
return TRUE;
}
/* priv->configure_request_count incremented for each
* configure request, and decremented to a min of 0 for
* each configure notify.
*
* All it means is that we know we will get at least
* priv->configure_request_count more configure notifies.
* We could get more configure notifies than that; some
* of the configure notifies we get may be unrelated to
* the configure requests. But we will get at least
* priv->configure_request_count notifies.
*/
if (priv->configure_request_count > 0)
{
priv->configure_request_count -= 1;
gdk_surface_thaw_toplevel_updates (priv->surface);
}
/*
* If we do need to resize, we do that by:
* - setting configure_notify_received to TRUE
* for use in gtk_window_move_resize()
* - queueing a resize, leading to invocation of
* gtk_window_move_resize() in an idle handler
*
*/
priv->configure_notify_received = TRUE;
gtk_widget_queue_allocate (widget);
return TRUE;
}
static void
update_edge_constraints (GtkWindow *window,
GdkSurfaceState state)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
priv->edge_constraints = (state & GDK_SURFACE_STATE_TOP_TILED) |
(state & GDK_SURFACE_STATE_TOP_RESIZABLE) |
(state & GDK_SURFACE_STATE_RIGHT_TILED) |
(state & GDK_SURFACE_STATE_RIGHT_RESIZABLE) |
(state & GDK_SURFACE_STATE_BOTTOM_TILED) |
(state & GDK_SURFACE_STATE_BOTTOM_RESIZABLE) |
(state & GDK_SURFACE_STATE_LEFT_TILED) |
(state & GDK_SURFACE_STATE_LEFT_RESIZABLE);
priv->tiled = (state & GDK_SURFACE_STATE_TILED) ? 1 : 0;
}
static void
surface_state_changed (GtkWidget *widget)
{
GtkWindow *window = GTK_WINDOW (widget);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GdkSurfaceState new_surface_state;
GdkSurfaceState changed_mask;
new_surface_state = gdk_toplevel_get_state (GDK_TOPLEVEL (priv->surface));
changed_mask = new_surface_state ^ priv->state;
priv->state = new_surface_state;
if (changed_mask & GDK_SURFACE_STATE_FOCUSED)
{
gboolean focused = new_surface_state & GDK_SURFACE_STATE_FOCUSED;
ensure_state_flag_backdrop (widget);
if (!focused)
gtk_window_set_mnemonics_visible (window, FALSE);
}
if (changed_mask & GDK_SURFACE_STATE_FULLSCREEN)
{
priv->fullscreen =
(new_surface_state & GDK_SURFACE_STATE_FULLSCREEN) ? 1 : 0;
}
if (changed_mask & GDK_SURFACE_STATE_MAXIMIZED)
{
priv->maximized =
(new_surface_state & GDK_SURFACE_STATE_MAXIMIZED) ? 1 : 0;
g_object_notify_by_pspec (G_OBJECT (widget), window_props[PROP_IS_MAXIMIZED]);
}
update_edge_constraints (window, new_surface_state);
if (changed_mask & (GDK_SURFACE_STATE_FULLSCREEN |
GDK_SURFACE_STATE_MAXIMIZED |
GDK_SURFACE_STATE_TILED |
GDK_SURFACE_STATE_TOP_TILED |
GDK_SURFACE_STATE_RIGHT_TILED |
GDK_SURFACE_STATE_BOTTOM_TILED |
GDK_SURFACE_STATE_LEFT_TILED))
{
update_window_style_classes (window);
update_window_buttons (window);
gtk_widget_queue_resize (widget);
}
}
static void
surface_size_changed (GtkWidget *widget,
int width,
int height)
{
gtk_window_configure (GTK_WINDOW (widget), width, height);
}
static gboolean
surface_render (GdkSurface *surface,
cairo_region_t *region,
GtkWidget *widget)
{
gtk_widget_render (widget, surface, region);
return TRUE;
}
static gboolean
surface_event (GdkSurface *surface,
GdkEvent *event,
GtkWidget *widget)
{
gtk_main_do_event (event);
return TRUE;
}
/* the accel_key and accel_mods fields of the key have to be setup
* upon calling this function. it’ll then return whether that key
* is at all used as accelerator, and if so will OR in the
* accel_flags member of the key.
*/
gboolean
_gtk_window_query_nonaccels (GtkWindow *window,
guint accel_key,
GdkModifierType accel_mods)
{
g_return_val_if_fail (GTK_IS_WINDOW (window), FALSE);
/* movement keys are considered locked accels */
if (!accel_mods)
{
static const guint bindings[] = {
GDK_KEY_space, GDK_KEY_KP_Space, GDK_KEY_Return, GDK_KEY_ISO_Enter, GDK_KEY_KP_Enter, GDK_KEY_Up, GDK_KEY_KP_Up, GDK_KEY_Down, GDK_KEY_KP_Down,
GDK_KEY_Left, GDK_KEY_KP_Left, GDK_KEY_Right, GDK_KEY_KP_Right, GDK_KEY_Tab, GDK_KEY_KP_Tab, GDK_KEY_ISO_Left_Tab,
};
guint i;
for (i = 0; i < G_N_ELEMENTS (bindings); i++)
if (bindings[i] == accel_key)
return TRUE;
}
return FALSE;
}
static GtkWindowRegion
get_active_region_type (GtkWindow *window, gint x, gint y)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkAllocation allocation;
gint i;
if (priv->client_decorated)
{
for (i = 0; i < 8; i++)
{
if (edge_under_coordinates (window, x, y, i))
return i;
}
}
if (priv->title_box != NULL &&
gtk_widget_get_visible (priv->title_box) &&
gtk_widget_get_child_visible (priv->title_box))
{
gtk_widget_get_allocation (priv->title_box, &allocation);
if (allocation.x <= x && allocation.x + allocation.width > x &&
allocation.y <= y && allocation.y + allocation.height > y)
return GTK_WINDOW_REGION_TITLE;
}
return GTK_WINDOW_REGION_CONTENT;
}
static void
gtk_window_real_activate_focus (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (priv->focus_widget && gtk_widget_is_sensitive (priv->focus_widget))
gtk_widget_activate (priv->focus_widget);
}
static gboolean
gtk_window_has_mnemonic_modifier_pressed (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GList *seats, *s;
gboolean retval = FALSE;
seats = gdk_display_list_seats (gtk_widget_get_display (GTK_WIDGET (window)));
for (s = seats; s; s = s->next)
{
GdkDevice *dev = gdk_seat_get_pointer (s->data);
GdkModifierType mask;
gdk_device_get_state (dev, priv->surface, NULL, &mask);
if ((mask & gtk_accelerator_get_default_mod_mask ()) == GDK_ALT_MASK)
{
retval = TRUE;
break;
}
}
g_list_free (seats);
return retval;
}
static gboolean
gtk_window_handle_focus (GtkWidget *widget,
GdkEvent *event,
double x,
double y)
{
GtkWindow *window = GTK_WINDOW (widget);
if (gdk_event_get_event_type (event) != GDK_FOCUS_CHANGE)
return FALSE;
if (gdk_focus_event_get_in (event))
{
_gtk_window_set_is_active (window, TRUE);
if (gtk_window_has_mnemonic_modifier_pressed (window))
_gtk_window_schedule_mnemonics_visible (window);
}
else
{
_gtk_window_set_is_active (window, FALSE);
gtk_window_set_mnemonics_visible (window, FALSE);
}
return TRUE;
}
static void
update_mnemonics_visible (GtkWindow *window,
guint keyval,
GdkModifierType state,
gboolean visible)
{
if ((keyval == GDK_KEY_Alt_L || keyval == GDK_KEY_Alt_R) &&
((state & (gtk_accelerator_get_default_mod_mask ()) & ~(GDK_ALT_MASK)) == 0))
{
if (visible)
_gtk_window_schedule_mnemonics_visible (window);
else
gtk_window_set_mnemonics_visible (window, FALSE);
}
}
static gboolean
gtk_window_key_pressed (GtkWidget *widget,
guint keyval,
guint keycode,
GdkModifierType state,
gpointer data)
{
GtkWindow *window = GTK_WINDOW (widget);
gtk_window_set_focus_visible (window, TRUE);
update_mnemonics_visible (window, keyval, state, TRUE);
return FALSE;
}
static gboolean
gtk_window_key_released (GtkWidget *widget,
guint keyval,
guint keycode,
GdkModifierType state,
gpointer data)
{
GtkWindow *window = GTK_WINDOW (widget);
update_mnemonics_visible (window, keyval, state, FALSE);
return FALSE;
}
static void
gtk_window_remove (GtkContainer *container,
GtkWidget *widget)
{
GtkWindow *window = GTK_WINDOW (container);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (widget == priv->title_box)
unset_titlebar (window);
else
GTK_CONTAINER_CLASS (gtk_window_parent_class)->remove (container, widget);
}
void
gtk_window_check_resize (GtkWindow *self)
{
GtkWidget *widget = GTK_WIDGET (self);
gint64 before = g_get_monotonic_time ();
if (!_gtk_widget_get_alloc_needed (widget))
gtk_widget_ensure_allocate (widget);
else if (gtk_widget_get_visible (widget))
gtk_window_move_resize (self);
if (GDK_PROFILER_IS_RUNNING)
gdk_profiler_end_mark (before, "size allocation", "");
}
static void
gtk_window_forall (GtkContainer *container,
GtkCallback callback,
gpointer callback_data)
{
GtkWindow *window = GTK_WINDOW (container);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWidget *child;
child = gtk_bin_get_child (GTK_BIN (container));
if (child != NULL)
(* callback) (child, callback_data);
if (priv->title_box != NULL &&
priv->titlebar == NULL)
(* callback) (priv->title_box, callback_data);
}
static gboolean
gtk_window_focus (GtkWidget *widget,
GtkDirectionType direction)
{
GtkWindow *window = GTK_WINDOW (widget);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkBin *bin;
GtkContainer *container;
GtkWidget *child;
GtkWidget *old_focus_child;
GtkWidget *parent;
container = GTK_CONTAINER (widget);
bin = GTK_BIN (widget);
old_focus_child = gtk_widget_get_focus_child (widget);
/* We need a special implementation here to deal properly with wrapping
* around in the tab chain without the danger of going into an
* infinite loop.
*/
if (old_focus_child)
{
if (gtk_widget_child_focus (old_focus_child, direction))
return TRUE;
}
if (priv->focus_widget)
{
if (direction == GTK_DIR_LEFT ||
direction == GTK_DIR_RIGHT ||
direction == GTK_DIR_UP ||
direction == GTK_DIR_DOWN)
{
return FALSE;
}
/* Wrapped off the end, clear the focus setting for the toplpevel */
parent = _gtk_widget_get_parent (priv->focus_widget);
while (parent)
{
gtk_widget_set_focus_child (parent, NULL);
parent = _gtk_widget_get_parent (parent);
}
gtk_window_set_focus (GTK_WINDOW (container), NULL);
}
/* Now try to focus the first widget in the window,
* taking care to hook titlebar widgets into the
* focus chain.
*/
if (priv->title_box != NULL &&
old_focus_child != NULL &&
priv->title_box != old_focus_child)
child = priv->title_box;
else
child = gtk_bin_get_child (bin);
if (child)
{
if (gtk_widget_child_focus (child, direction))
return TRUE;
else if (priv->title_box != NULL &&
priv->title_box != child &&
gtk_widget_child_focus (priv->title_box, direction))
return TRUE;
else if (priv->title_box == child &&
gtk_widget_child_focus (gtk_bin_get_child (bin), direction))
return TRUE;
}
return FALSE;
}
static void
gtk_window_move_focus (GtkWidget *widget,
GtkDirectionType dir)
{
gtk_widget_child_focus (widget, dir);
if (!gtk_widget_get_focus_child (widget))
gtk_window_set_focus (GTK_WINDOW (widget), NULL);
}
void
check_crossing_invariants (GtkWidget *widget,
GtkCrossingData *crossing)
{
#ifdef G_ENBABLE_DEBUG
if (crossing->old_target == NULL)
g_assert (crossing->old_descendent == NULL);
else if (crossing->old_descendent == NULL)
g_assert (crossing->old_target == widget || !gtk_widget_is_ancestor (crossing->old_target, widget));
else
{
g_assert (gtk_widget_get_parent (crossing->old_descendent) == widget);
g_assert (gtk_widget_is_ancestor (crossing->old_descendent, widget));
g_assert (crossing->old_target == crossing->old_descendent || gtk_widget_is_ancestor (crossing->old_target, crossing->old_descendent));
}
if (crossing->new_target == NULL)
g_assert (crossing->new_descendent == NULL);
else if (crossing->new_descendent == NULL)
g_assert (crossing->new_target == widget || !gtk_widget_is_ancestor (crossing->new_target, widget));
else
{
g_assert (gtk_widget_get_parent (crossing->new_descendent) == widget);
g_assert (gtk_widget_is_ancestor (crossing->new_descendent, widget));
g_assert (crossing->new_target == crossing->new_descendent || gtk_widget_is_ancestor (crossing->new_target, crossing->new_descendent));
}
#endif
}
static void
synthesize_focus_change_events (GtkWindow *window,
GtkWidget *old_focus,
GtkWidget *new_focus)
{
GtkCrossingData crossing;
GtkWidget *ancestor;
GtkWidget *widget, *focus_child;
GList *list, *l;
GtkStateFlags flags;
GtkWidget *prev;
gboolean seen_ancestor;
if (old_focus && new_focus)
ancestor = gtk_widget_common_ancestor (old_focus, new_focus);
else
ancestor = NULL;
flags = GTK_STATE_FLAG_FOCUSED | GTK_STATE_FLAG_FOCUS_WITHIN;
if (gtk_window_get_focus_visible (GTK_WINDOW (window)))
flags |= GTK_STATE_FLAG_FOCUS_VISIBLE;
crossing.type = GTK_CROSSING_FOCUS;
crossing.mode = GDK_CROSSING_NORMAL;
crossing.old_target = old_focus;
crossing.old_descendent = NULL;
crossing.new_target = new_focus;
crossing.new_descendent = NULL;
crossing.direction = GTK_CROSSING_OUT;
prev = NULL;
seen_ancestor = FALSE;
widget = old_focus;
while (widget)
{
crossing.old_descendent = prev;
if (seen_ancestor)
{
crossing.new_descendent = new_focus ? prev : NULL;
}
else if (widget == ancestor)
{
GtkWidget *w;
crossing.new_descendent = NULL;
for (w = new_focus; w != ancestor; w = gtk_widget_get_parent (w))
crossing.new_descendent = w;
seen_ancestor = TRUE;
}
else
{
crossing.new_descendent = NULL;
}
check_crossing_invariants (widget, &crossing);
gtk_widget_handle_crossing (widget, &crossing, 0, 0);
gtk_widget_unset_state_flags (widget, flags);
gtk_widget_set_focus_child (widget, NULL);
prev = widget;
widget = gtk_widget_get_parent (widget);
flags = flags & ~GTK_STATE_FLAG_FOCUSED;
}
flags = GTK_STATE_FLAG_FOCUS_WITHIN;
if (gtk_window_get_focus_visible (GTK_WINDOW (window)))
flags |= GTK_STATE_FLAG_FOCUS_VISIBLE;
list = NULL;
for (widget = new_focus; widget; widget = gtk_widget_get_parent (widget))
list = g_list_prepend (list, widget);
crossing.direction = GTK_CROSSING_IN;
seen_ancestor = FALSE;
for (l = list; l; l = l->next)
{
widget = l->data;
if (l->next)
focus_child = l->next->data;
else
focus_child = NULL;
crossing.new_descendent = focus_child;
if (seen_ancestor)
{
crossing.old_descendent = NULL;
}
else if (widget == ancestor)
{
GtkWidget *w;
crossing.old_descendent = NULL;
for (w = old_focus; w != ancestor; w = gtk_widget_get_parent (w))
{
crossing.old_descendent = w;
}
seen_ancestor = TRUE;
}
else
{
crossing.old_descendent = old_focus ? focus_child : NULL;
}
check_crossing_invariants (widget, &crossing);
gtk_widget_handle_crossing (widget, &crossing, 0, 0);
if (l->next == NULL)
flags = flags | GTK_STATE_FLAG_FOCUSED;
gtk_widget_set_state_flags (widget, flags, FALSE);
gtk_widget_set_focus_child (widget, focus_child);
}
g_list_free (list);
}
/**
* gtk_window_set_focus:
* @window: a #GtkWindow
* @focus: (allow-none): widget to be the new focus widget, or %NULL to unset
* any focus widget for the toplevel window.
*
* If @focus is not the current focus widget, and is focusable, sets
* it as the focus widget for the window. If @focus is %NULL, unsets
* the focus widget for this window. To set the focus to a particular
* widget in the toplevel, it is usually more convenient to use
* gtk_widget_grab_focus() instead of this function.
**/
void
gtk_window_set_focus (GtkWindow *window,
GtkWidget *focus)
{
g_return_if_fail (GTK_IS_WINDOW (window));
if (focus)
gtk_widget_grab_focus (focus);
else
gtk_window_root_set_focus (GTK_ROOT (window), NULL);
}
static void
gtk_window_state_flags_changed (GtkWidget *widget,
GtkStateFlags previous_state)
{
GtkWindow *window = GTK_WINDOW (widget);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkStateFlags state;
state = gtk_widget_get_state_flags (widget);
gtk_css_node_set_state (priv->decoration_node, state);
GTK_WIDGET_CLASS (gtk_window_parent_class)->state_flags_changed (widget, previous_state);
}
static void
gtk_window_css_changed (GtkWidget *widget,
GtkCssStyleChange *change)
{
GtkWindow *window = GTK_WINDOW (widget);
GTK_WIDGET_CLASS (gtk_window_parent_class)->css_changed (widget, change);
if (!_gtk_widget_get_alloc_needed (widget) &&
(change == NULL || gtk_css_style_change_changes_property (change, GTK_CSS_PROPERTY_BACKGROUND_COLOR)))
{
GtkAllocation allocation;
GtkBorder window_border;
gtk_widget_get_allocation (widget, &allocation);
get_shadow_width (window, &window_border);
update_opaque_region (window, &window_border, &allocation);
}
if (change == NULL || gtk_css_style_change_changes_property (change, GTK_CSS_PROPERTY_ICON_THEME))
update_themed_icon (window);
}
/**
* _gtk_window_unset_focus_and_default:
* @window: a #GtkWindow
* @widget: a widget inside of @window
*
* Checks whether the focus and default widgets of @window are
* @widget or a descendent of @widget, and if so, unset them.
**/
void
_gtk_window_unset_focus_and_default (GtkWindow *window,
GtkWidget *widget)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWidget *child;
GtkWidget *parent;
g_object_ref (window);
g_object_ref (widget);
parent = _gtk_widget_get_parent (widget);
if (gtk_widget_get_focus_child (parent) == widget)
{
child = priv->focus_widget;
while (child && child != widget)
child = _gtk_widget_get_parent (child);
if (child == widget)
{
GtkWidget *new_focus;
if (GTK_IS_NATIVE (widget))
new_focus = gtk_widget_get_parent (widget);
else
new_focus = NULL;
gtk_window_set_focus (GTK_WINDOW (window), new_focus);
}
}
child = priv->default_widget;
while (child && child != widget)
child = _gtk_widget_get_parent (child);
if (child == widget)
gtk_window_set_default_widget (window, NULL);
g_object_unref (widget);
g_object_unref (window);
}
static void
popup_menu_closed (GtkPopover *popover,
GtkWindow *widget)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (GTK_WINDOW (widget));
g_clear_pointer (&priv->popup_menu, gtk_widget_unparent);
}
static GdkSurfaceState
gtk_window_get_state (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (priv->surface)
return gdk_toplevel_get_state (GDK_TOPLEVEL (priv->surface));
return 0;
}
static void
restore_window_clicked (GtkModelButton *button,
gpointer user_data)
{
GtkWindow *window = GTK_WINDOW (user_data);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GdkSurfaceState state;
if (priv->maximized)
{
gtk_window_unmaximize (window);
return;
}
state = gtk_window_get_state (window);
if (state & GDK_SURFACE_STATE_MINIMIZED)
gtk_window_unminimize (window);
}
static void
move_window_clicked (GtkModelButton *button,
gpointer user_data)
{
GtkWindow *window = GTK_WINDOW (user_data);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
gdk_surface_begin_move_drag (priv->surface,
NULL,
0, /* 0 means "use keyboard" */
0, 0,
GDK_CURRENT_TIME);
}
static void
resize_window_clicked (GtkModelButton *button,
gpointer user_data)
{
GtkWindow *window = GTK_WINDOW (user_data);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
gdk_surface_begin_resize_drag (priv->surface,
0,
NULL,
0, /* 0 means "use keyboard" */
0, 0,
GDK_CURRENT_TIME);
}
static void
minimize_window_clicked (GtkModelButton *button,
gpointer user_data)
{
GtkWindow *window = GTK_WINDOW (user_data);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
/* Turns out, we can't minimize a maximized window */
if (priv->maximized)
gtk_window_unmaximize (window);
gtk_window_minimize (window);
}
static void
maximize_window_clicked (GtkModelButton *button,
gpointer user_data)
{
gtk_window_maximize (GTK_WINDOW (user_data));
}
static void
ontop_window_clicked (GtkModelButton *button,
gpointer user_data)
{
GtkWindow *window = (GtkWindow *)user_data;
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
gtk_popover_popdown (GTK_POPOVER (priv->popup_menu));
}
static void
close_window_clicked (GtkModelButton *button,
gpointer user_data)
{
GtkWindow *window = (GtkWindow *)user_data;
gtk_window_close (window);
}
static void
gtk_window_do_popup_fallback (GtkWindow *window,
GdkEvent *event)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWidget *menuitem;
GdkSurfaceState state;
gboolean maximized, minimized;
GtkWidget *box;
if (priv->popup_menu)
gtk_widget_destroy (priv->popup_menu);
state = gtk_window_get_state (window);
minimized = (state & GDK_SURFACE_STATE_MINIMIZED) == GDK_SURFACE_STATE_MINIMIZED;
maximized = priv->maximized && !minimized;
priv->popup_menu = gtk_popover_menu_new ();
gtk_widget_set_parent (priv->popup_menu, priv->title_box);
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_popover_menu_add_submenu (GTK_POPOVER_MENU (priv->popup_menu), box, "main");
menuitem = gtk_model_button_new ();
g_object_set (menuitem, "text", _("Restore"), NULL);
/* "Restore" means "Unmaximize" or "Unminimize"
* (yes, some WMs allow window menu to be shown for minimized windows).
* Not restorable:
* - visible windows that are not maximized or minimized
* - non-resizable windows that are not minimized
* - non-normal windows
*/
if ((gtk_widget_is_visible (GTK_WIDGET (window)) &&
!(maximized || minimized)) ||
(!minimized && !priv->resizable))
gtk_widget_set_sensitive (menuitem, FALSE);
g_signal_connect (G_OBJECT (menuitem), "clicked",
G_CALLBACK (restore_window_clicked), window);
gtk_container_add (GTK_CONTAINER (box), menuitem);
menuitem = gtk_model_button_new ();
g_object_set (menuitem, "text", _("Move"), NULL);
if (maximized || minimized)
gtk_widget_set_sensitive (menuitem, FALSE);
g_signal_connect (G_OBJECT (menuitem), "clicked",
G_CALLBACK (move_window_clicked), window);
gtk_container_add (GTK_CONTAINER (box), menuitem);
menuitem = gtk_model_button_new ();
g_object_set (menuitem, "text", _("Resize"), NULL);
if (!priv->resizable || maximized || minimized)
gtk_widget_set_sensitive (menuitem, FALSE);
g_signal_connect (G_OBJECT (menuitem), "clicked",
G_CALLBACK (resize_window_clicked), window);
gtk_container_add (GTK_CONTAINER (box), menuitem);
menuitem = gtk_model_button_new ();
g_object_set (menuitem, "text", _("Minimize"), NULL);
if (minimized)
gtk_widget_set_sensitive (menuitem, FALSE);
g_signal_connect (G_OBJECT (menuitem), "clicked",
G_CALLBACK (minimize_window_clicked), window);
gtk_container_add (GTK_CONTAINER (box), menuitem);
menuitem = gtk_model_button_new ();
g_object_set (menuitem, "text", _("Maximize"), NULL);
if (maximized || !priv->resizable)
gtk_widget_set_sensitive (menuitem, FALSE);
g_signal_connect (G_OBJECT (menuitem), "clicked",
G_CALLBACK (maximize_window_clicked), window);
gtk_container_add (GTK_CONTAINER (box), menuitem);
menuitem = gtk_separator_new (GTK_ORIENTATION_HORIZONTAL);
gtk_container_add (GTK_CONTAINER (box), menuitem);
menuitem = gtk_model_button_new ();
g_object_set (menuitem,
"text", _("Always on Top"),
"role", GTK_BUTTON_ROLE_CHECK,
NULL);
if (maximized)
gtk_widget_set_sensitive (menuitem, FALSE);
g_signal_connect (G_OBJECT (menuitem), "clicked",
G_CALLBACK (ontop_window_clicked), window);
gtk_container_add (GTK_CONTAINER (box), menuitem);
menuitem = gtk_separator_new (GTK_ORIENTATION_HORIZONTAL);
gtk_container_add (GTK_CONTAINER (box), menuitem);
menuitem = gtk_model_button_new ();
g_object_set (menuitem, "text", _("Close"), NULL);
if (!priv->deletable)
gtk_widget_set_sensitive (menuitem, FALSE);
g_signal_connect (G_OBJECT (menuitem), "clicked",
G_CALLBACK (close_window_clicked), window);
gtk_container_add (GTK_CONTAINER (box), menuitem);
g_signal_connect (priv->popup_menu, "closed",
G_CALLBACK (popup_menu_closed), window);
gtk_popover_popup (GTK_POPOVER (priv->popup_menu));
}
static void
gtk_window_do_popup (GtkWindow *window,
GdkEvent *event)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (!gdk_toplevel_show_window_menu (GDK_TOPLEVEL (priv->surface), event))
gtk_window_do_popup_fallback (window, event);
}
/*********************************
* Functions related to resizing *
*********************************/
/* This function doesn't constrain to geometry hints */
static void
gtk_window_compute_configure_request_size (GtkWindow *window,
GdkGeometry *geometry,
guint flags,
gint *width,
gint *height)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWindowGeometryInfo *info;
int w, h;
/* Preconditions:
* - we've done a size request
*/
info = gtk_window_get_geometry_info (window, FALSE);
if (priv->need_default_size)
{
gtk_window_guess_default_size (window, width, height);
gtk_window_get_remembered_size (window, &w, &h);
*width = MAX (*width, w);
*height = MAX (*height, h);
/* Override with default size */
if (info)
{
/* Take width of shadows/headerbar into account. We want to set the
* default size of the content area and not the window area.
*/
gint default_width_csd = info->default_width;
gint default_height_csd = info->default_height;
gtk_window_update_csd_size (window,
&default_width_csd, &default_height_csd,
INCLUDE_CSD_SIZE);
if (info->default_width > 0)
*width = default_width_csd;
if (info->default_height > 0)
*height = default_height_csd;
}
}
else
{
/* Default to keeping current size */
gtk_window_get_remembered_size (window, width, height);
}
/* Override any size with gtk_window_resize() values */
if (priv->maximized || priv->fullscreen)
{
/* Unless we are maximized or fullscreen */
gtk_window_get_remembered_size (window, width, height);
}
else if (info)
{
gint resize_width_csd = info->resize_width;
gint resize_height_csd = info->resize_height;
gtk_window_update_csd_size (window,
&resize_width_csd, &resize_height_csd,
INCLUDE_CSD_SIZE);
if (info->resize_width > 0)
*width = resize_width_csd;
if (info->resize_height > 0)
*height = resize_height_csd;
}
/* Don't ever request zero width or height, it's not supported by
gdk. The size allocation code will round it to 1 anyway but if
we do it then the value returned from this function will is
not comparable to the size allocation read from the GtkWindow. */
*width = MAX (*width, 1);
*height = MAX (*height, 1);
}
static void
gtk_window_compute_configure_request (GtkWindow *window,
GdkRectangle *request,
GdkGeometry *geometry,
guint *flags)
{
GdkGeometry new_geometry;
guint new_flags;
int w, h;
GtkWindowGeometryInfo *info;
int x, y;
gtk_window_compute_hints (window, &new_geometry, &new_flags);
gtk_window_compute_configure_request_size (window,
&new_geometry, new_flags,
&w, &h);
gtk_window_update_fixed_size (window, &new_geometry, w, h);
gtk_window_constrain_size (window,
&new_geometry, new_flags,
w, h,
&w, &h);
info = gtk_window_get_geometry_info (window, FALSE);
/* by default, don't change position requested */
if (info)
{
x = info->last.configure_request.x;
y = info->last.configure_request.y;
}
else
{
x = 0;
y = 0;
}
request->x = x;
request->y = y;
request->width = w;
request->height = h;
if (geometry)
*geometry = new_geometry;
if (flags)
*flags = new_flags;
}
static void
gtk_window_move_resize (GtkWindow *window)
{
/* Overview:
*
* First we determine whether any information has changed that would
* cause us to revise our last configure request. If we would send
* a different configure request from last time, then
* configure_request_size_changed = TRUE or
* configure_request_pos_changed = TRUE. configure_request_size_changed
* may be true due to new hints, a gtk_window_resize(), or whatever.
* configure_request_pos_changed may be true due to gtk_window_set_position()
* or gtk_window_move().
*
* If the configure request has changed, we send off a new one. To
* ensure GTK+ invariants are maintained (resize queue does what it
* should), we go ahead and size_allocate the requested size in this
* function.
*
* If the configure request has not changed, we don't ever resend
* it, because it could mean fighting the user or window manager.
*
* To prepare the configure request, we come up with a base size/pos:
* - the one from gtk_window_move()/gtk_window_resize()
* - else default_width, default_height if we haven't ever
* been mapped
* - else the size request if we haven't ever been mapped,
* as a substitute default size
* - else the current size of the window, as received from
* configure notifies (i.e. the current allocation)
*/
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWidget *widget;
GtkWindowGeometryInfo *info;
GdkGeometry new_geometry;
guint new_flags;
GdkRectangle new_request;
gboolean configure_request_size_changed;
gboolean configure_request_pos_changed;
gboolean hints_changed; /* do we need to send these again */
GtkWindowLastGeometryInfo saved_last_info;
int current_width, current_height;
widget = GTK_WIDGET (window);
info = gtk_window_get_geometry_info (window, TRUE);
configure_request_size_changed = FALSE;
configure_request_pos_changed = FALSE;
hints_changed = FALSE;
gtk_window_compute_configure_request (window, &new_request,
&new_geometry, &new_flags);
if (!(new_flags & GDK_HINT_MIN_SIZE))
new_geometry.min_width = new_geometry.min_height = 1;
g_clear_pointer (&priv->layout, gdk_toplevel_layout_unref);
priv->layout = gtk_window_compute_layout (window, new_geometry.min_width, new_geometry.min_height);
/* This check implies the invariant that we never set info->last
* without setting the hints and sending off a configure request.
*
* If we change info->last without sending the request, we may
* miss a request.
*/
if (info->last.configure_request.x != new_request.x ||
info->last.configure_request.y != new_request.y)
configure_request_pos_changed = TRUE;
if ((info->last.configure_request.width != new_request.width ||
info->last.configure_request.height != new_request.height))
configure_request_size_changed = TRUE;
if (!gtk_window_compare_hints (&info->last.geometry, info->last.flags,
&new_geometry, new_flags))
hints_changed = TRUE;
#if 0
{
GtkAllocation alloc;
gtk_widget_get_allocation (widget, &alloc);
g_message ("--- %s ---\n"
"last : %d,%d\t%d x %d\n"
"this : %d,%d\t%d x %d\n"
"alloc : %d,%d\t%d x %d\n"
"resize: \t%d x %d\n"
"size_changed: %d pos_changed: %d hints_changed: %d\n"
"configure_notify_received: %d\n"
"configure_request_count: %d\n"
"position_constraints_changed: %d",
priv->title ? priv->title : "(no title)",
info->last.configure_request.x,
info->last.configure_request.y,
info->last.configure_request.width,
info->last.configure_request.height,
new_request.x,
new_request.y,
new_request.width,
new_request.height,
alloc.x,
alloc.y,
alloc.width,
alloc.height,
info->resize_width,
info->resize_height,
configure_request_size_changed,
configure_request_pos_changed,
hints_changed,
priv->configure_notify_received,
priv->configure_request_count,
info->position_constraints_changed);
}
#endif
saved_last_info = info->last;
info->last.geometry = new_geometry;
info->last.flags = new_flags;
info->last.configure_request = new_request;
/* need to set PPosition so the WM will look at our position,
* but we don't want to count PPosition coming and going as a hints
* change for future iterations. So we saved info->last prior to
* this.
*/
/* Also, if the initial position was explicitly set, then we always
* toggle on PPosition. This makes gtk_window_move(window, 0, 0)
* work.
*/
if (configure_request_pos_changed)
{
new_flags |= GDK_HINT_POS;
hints_changed = TRUE;
}
current_width = gdk_surface_get_width (priv->surface);
current_height = gdk_surface_get_height (priv->surface);
/* handle resizing/moving and widget tree allocation
*/
if (priv->configure_notify_received)
{
GtkAllocation allocation;
int min;
/* If we have received a configure event since
* the last time in this function, we need to
* accept our new size and size_allocate child widgets.
* (see gtk_window_configure_event() for more details).
*
* 1 or more configure notifies may have been received.
* Also, configure_notify_received will only be TRUE
* if all expected configure notifies have been received
* (one per configure request), as an optimization.
*
*/
priv->configure_notify_received = FALSE;
allocation.x = 0;
allocation.y = 0;
gtk_widget_measure (widget, GTK_ORIENTATION_HORIZONTAL, -1,
&min, NULL, NULL, NULL);
allocation.width = MAX (min, current_width);
gtk_widget_measure (widget, GTK_ORIENTATION_VERTICAL, allocation.width,
&min, NULL, NULL, NULL);
allocation.height = MAX (min, current_height);
gtk_widget_size_allocate (widget, &allocation, -1);
/* If the configure request changed, it means that
* we either:
* 1) coincidentally changed hints or widget properties
* impacting the configure request before getting
* a configure notify, or
* 2) some broken widget is changing its size request
* during size allocation, resulting in
* a false appearance of changed configure request.
*
* For 1), we could just go ahead and ask for the
* new size right now, but doing that for 2)
* might well be fighting the user (and can even
* trigger a loop). Since we really don't want to
* do that, we requeue a resize in hopes that
* by the time it gets handled, the child has seen
* the light and is willing to go along with the
* new size. (this happens for the zvt widget, since
* the size_allocate() above will have stored the
* requisition corresponding to the new size in the
* zvt widget)
*
* This doesn't buy us anything for 1), but it shouldn't
* hurt us too badly, since it is what would have
* happened if we had gotten the configure event before
* the new size had been set.
*/
if (configure_request_size_changed ||
configure_request_pos_changed)
{
/* Don't change the recorded last info after all, because we
* haven't actually updated to the new info yet - we decided
* to postpone our configure request until later.
*/
info->last = saved_last_info;
g_clear_pointer (&priv->layout, gdk_toplevel_layout_unref);
gtk_widget_queue_resize (widget); /* might recurse for GTK_RESIZE_IMMEDIATE */
}
return; /* Bail out, we didn't really process the move/resize */
}
else if ((configure_request_size_changed || hints_changed) &&
(current_width != new_request.width || current_height != new_request.height))
{
/* We are in one of the following situations:
* A. configure_request_size_changed
* our requisition has changed and we need a different window size,
* so we request it from the window manager.
* B. !configure_request_size_changed && hints_changed
* the window manager rejects our size, but we have just changed the
* window manager hints, so there's a chance our request will
* be honoured this time, so we try again.
*
* However, if the new requisition is the same as the current allocation,
* we don't request it again, since we won't get a ConfigureNotify back from
* the window manager unless it decides to change our requisition. If
* we don't get the ConfigureNotify back, the resize queue will never be run.
*/
/* Increment the number of have-not-yet-received-notify requests.
* This is done before gdk_surface[_move]_resize(), because
* that call might be synchronous (depending on which GDK backend
* is being used), so any preparations for its effects must
* be done beforehand.
*/
priv->configure_request_count += 1;
gdk_surface_freeze_toplevel_updates (priv->surface);
/* for GTK_RESIZE_QUEUE toplevels, we are now awaiting a new
* configure event in response to our resizing request.
* the configure event will cause a new resize with
* ->configure_notify_received=TRUE.
* until then, we want to
* - discard expose events
* - coalesce resizes for our children
* - defer any window resizes until the configure event arrived
* to achieve this, we queue a resize for the window, but remove its
* resizing handler, so resizing will not be handled from the next
* idle handler but when the configure event arrives.
*
* FIXME: we should also dequeue the pending redraws here, since
* we handle those ourselves upon ->configure_notify_received==TRUE.
*/
/* Now send the configure request */
if (configure_request_pos_changed)
g_warning ("configure request position changed. This should not happen. Ignoring the position");
gdk_toplevel_present (GDK_TOPLEVEL (priv->surface),
new_request.width, new_request.height,
priv->layout);
}
else
{
GtkAllocation allocation;
int min_width, min_height;
/* Handle any position changes.
*/
if (configure_request_pos_changed)
g_warning ("configure request position changed. This should not happen. Ignoring the position");
gtk_widget_measure (widget, GTK_ORIENTATION_HORIZONTAL, current_height,
&min_width, NULL, NULL, NULL);
gtk_widget_measure (widget, GTK_ORIENTATION_VERTICAL, current_width,
&min_height, NULL, NULL, NULL);
/* Our configure request didn't change size, but maybe some of
* our child widgets have. Run a size allocate with our current
* size to make sure that we re-layout our child widgets. */
allocation.x = 0;
allocation.y = 0;
allocation.width = MAX (current_width, min_width);
allocation.height = MAX (current_height, min_height);
gtk_widget_size_allocate (widget, &allocation, -1);
}
info->resize_width = -1;
info->resize_height = -1;
}
/* Compare two sets of Geometry hints for equality.
*/
static gboolean
gtk_window_compare_hints (GdkGeometry *geometry_a,
guint flags_a,
GdkGeometry *geometry_b,
guint flags_b)
{
if (flags_a != flags_b)
return FALSE;
if ((flags_a & GDK_HINT_MIN_SIZE) &&
(geometry_a->min_width != geometry_b->min_width ||
geometry_a->min_height != geometry_b->min_height))
return FALSE;
if ((flags_a & GDK_HINT_MAX_SIZE) &&
(geometry_a->max_width != geometry_b->max_width ||
geometry_a->max_height != geometry_b->max_height))
return FALSE;
if ((flags_a & GDK_HINT_BASE_SIZE) &&
(geometry_a->base_width != geometry_b->base_width ||
geometry_a->base_height != geometry_b->base_height))
return FALSE;
if ((flags_a & GDK_HINT_ASPECT) &&
(geometry_a->min_aspect != geometry_b->min_aspect ||
geometry_a->max_aspect != geometry_b->max_aspect))
return FALSE;
if ((flags_a & GDK_HINT_RESIZE_INC) &&
(geometry_a->width_inc != geometry_b->width_inc ||
geometry_a->height_inc != geometry_b->height_inc))
return FALSE;
if ((flags_a & GDK_HINT_WIN_GRAVITY) &&
geometry_a->win_gravity != geometry_b->win_gravity)
return FALSE;
return TRUE;
}
static void
gtk_window_constrain_size (GtkWindow *window,
GdkGeometry *geometry,
guint flags,
gint width,
gint height,
gint *new_width,
gint *new_height)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
guint geometry_flags;
/* ignore size increments for windows that fit in a fixed space */
if (priv->maximized || priv->fullscreen || priv->tiled)
geometry_flags = flags & ~GDK_HINT_RESIZE_INC;
else
geometry_flags = flags;
gdk_surface_constrain_size (geometry, geometry_flags, width, height,
new_width, new_height);
}
/* For non-resizable windows, make sure the given width/height fits
* in the geometry contrains and update the geometry hints to match
* the given width/height if not.
* This is to make sure that non-resizable windows get the default
* width/height if set, but can still grow if their content requires.
*
* Note: Fixed size windows with a default size set will not shrink
* smaller than the default size when their content requires less size.
*/
static void
gtk_window_update_fixed_size (GtkWindow *window,
GdkGeometry *new_geometry,
gint new_width,
gint new_height)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWindowGeometryInfo *info;
gboolean has_size_request;
/* Adjust the geometry hints for non-resizable windows only */
has_size_request = gtk_widget_has_size_request (GTK_WIDGET (window));
if (priv->resizable || has_size_request)
return;
info = gtk_window_get_geometry_info (window, FALSE);
if (info)
{
gint default_width_csd = info->default_width;
gint default_height_csd = info->default_height;
gtk_window_update_csd_size (window,
&default_width_csd, &default_height_csd,
INCLUDE_CSD_SIZE);
if (info->default_width > -1)
{
gint w = MAX (MAX (default_width_csd, new_width), new_geometry->min_width);
new_geometry->min_width = w;
new_geometry->max_width = w;
}
if (info->default_height > -1)
{
gint h = MAX (MAX (default_height_csd, new_height), new_geometry->min_height);
new_geometry->min_height = h;
new_geometry->max_height = h;
}
}
}
/* Compute the set of geometry hints and flags for a window
* based on the application set geometry, and requisition
* of the window. gtk_widget_get_preferred_size() must have been
* called first.
*/
static void
gtk_window_compute_hints (GtkWindow *window,
GdkGeometry *new_geometry,
guint *new_flags)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWidget *widget;
GtkRequisition requisition;
widget = GTK_WIDGET (window);
/* Use a good size for unresizable widgets, otherwise the minimum one. */
if (priv->resizable)
gtk_widget_get_preferred_size (widget, &requisition, NULL);
else
gtk_window_guess_default_size (window, &requisition.width, &requisition.height);
/* We don't want to set GDK_HINT_POS in here, we just set it
* in gtk_window_move_resize() when we want the position
* honored.
*/
*new_flags = 0;
/* For simplicity, we always set the base hint, even when we
* don't expect it to have any visible effect.
* (Note: geometry_size_to_pixels() depends on this.)
*/
*new_flags |= GDK_HINT_BASE_SIZE;
new_geometry->base_width = 0;
new_geometry->base_height = 0;
*new_flags |= GDK_HINT_MIN_SIZE;
new_geometry->min_width = requisition.width;
new_geometry->min_height = requisition.height;
if (!priv->resizable)
{
*new_flags |= GDK_HINT_MAX_SIZE;
new_geometry->max_width = new_geometry->min_width;
new_geometry->max_height = new_geometry->min_height;
}
*new_flags |= GDK_HINT_WIN_GRAVITY;
new_geometry->win_gravity = priv->gravity;
}
#undef INCLUDE_CSD_SIZE
#undef EXCLUDE_CSD_SIZE
/***********************
* Redrawing functions *
***********************/
static void
gtk_window_snapshot (GtkWidget *widget,
GtkSnapshot *snapshot)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (GTK_WINDOW (widget));
GtkStyleContext *context;
GtkBorder window_border;
gint title_height;
int width, height;
GtkWidget *child;
context = gtk_widget_get_style_context (widget);
get_shadow_width (GTK_WINDOW (widget), &window_border);
width = gtk_widget_get_width (widget);
height = gtk_widget_get_height (widget);
if (priv->client_decorated &&
priv->decorated &&
!priv->fullscreen &&
!priv->maximized)
{
gtk_style_context_save_to_node (context, priv->decoration_node);
if (priv->use_client_shadow)
{
GtkBorder padding, border;
gtk_style_context_get_padding (context, &padding);
gtk_style_context_get_border (context, &border);
sum_borders (&border, &padding);
gtk_snapshot_render_background (snapshot, context,
window_border.left - border.left, window_border.top - border.top,
width -
(window_border.left + window_border.right - border.left - border.right),
height -
(window_border.top + window_border.bottom - border.top - border.bottom));
gtk_snapshot_render_frame (snapshot, context,
window_border.left - border.left, window_border.top - border.top,
width -
(window_border.left + window_border.right - border.left - border.right),
height -
(window_border.top + window_border.bottom - border.top - border.bottom));
}
else
{
gtk_snapshot_render_background (snapshot, context, 0, 0,
width, height);
gtk_snapshot_render_frame (snapshot, context, 0, 0,
width, height);
}
gtk_style_context_restore (context);
}
if (priv->title_box &&
gtk_widget_get_visible (priv->title_box) &&
gtk_widget_get_child_visible (priv->title_box))
title_height = priv->title_height;
else
title_height = 0;
gtk_snapshot_render_background (snapshot, context,
window_border.left,
window_border.top + title_height,
width -
(window_border.left + window_border.right),
height -
(window_border.top + window_border.bottom + title_height));
gtk_snapshot_render_frame (snapshot, context,
window_border.left,
window_border.top + title_height,
width -
(window_border.left + window_border.right),
height -
(window_border.top + window_border.bottom + title_height));
for (child = _gtk_widget_get_first_child (widget);
child != NULL;
child = _gtk_widget_get_next_sibling (child))
{
/* Handle popovers separately until their stacking order is fixed */
if (!GTK_IS_POPOVER (child))
gtk_widget_snapshot_child (widget, child, snapshot);
}
}
/**
* gtk_window_present:
* @window: a #GtkWindow
*
* Presents a window to the user. This function should not be used
* as when it is called, it is too late to gather a valid timestamp
* to allow focus stealing prevention to work correctly.
**/
void
gtk_window_present (GtkWindow *window)
{
gtk_window_present_with_time (window, GDK_CURRENT_TIME);
}
/**
* gtk_window_present_with_time:
* @window: a #GtkWindow
* @timestamp: the timestamp of the user interaction (typically a
* button or key press event) which triggered this call
*
* Presents a window to the user. This may mean raising the window
* in the stacking order, unminimizing it, moving it to the current
* desktop, and/or giving it the keyboard focus, possibly dependent
* on the user’s platform, window manager, and preferences.
*
* If @window is hidden, this function calls gtk_widget_show()
* as well.
*
* This function should be used when the user tries to open a window
* that’s already open. Say for example the preferences dialog is
* currently open, and the user chooses Preferences from the menu
* a second time; use gtk_window_present() to move the already-open dialog
* where the user can see it.
*
* Presents a window to the user in response to a user interaction. The
* timestamp should be gathered when the window was requested to be shown
* (when clicking a link for example), rather than once the window is
* ready to be shown.
**/
void
gtk_window_present_with_time (GtkWindow *window,
guint32 timestamp)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWidget *widget;
GdkSurface *surface;
g_return_if_fail (GTK_IS_WINDOW (window));
widget = GTK_WIDGET (window);
if (gtk_widget_get_visible (widget))
{
surface = priv->surface;
g_assert (surface != NULL);
gtk_window_present_toplevel (window);
/* Translate a timestamp of GDK_CURRENT_TIME appropriately */
if (timestamp == GDK_CURRENT_TIME)
{
#ifdef GDK_WINDOWING_X11
if (GDK_IS_X11_SURFACE (surface))
{
GdkDisplay *display;
display = gtk_widget_get_display (widget);
timestamp = gdk_x11_display_get_user_time (display);
}
else
#endif
timestamp = gtk_get_current_event_time ();
}
gdk_toplevel_focus (GDK_TOPLEVEL (surface), timestamp);
}
else
{
priv->initial_timestamp = timestamp;
gtk_widget_show (widget);
}
}
/**
* gtk_window_minimize:
* @window: a #GtkWindow
*
* Asks to minimize the specified @window.
*
* Note that you shouldn’t assume the window is definitely minimized
* afterward, because the windowing system might not support this
* functionality; other entities (e.g. the user or the [window manager][gtk-X11-arch])
* could unminimize it again, or there may not be a window manager in
* which case minimization isn’t possible, etc.
*
* It’s permitted to call this function before showing a window,
* in which case the window will be minimized before it ever appears
* onscreen.
*
* You can track result of this operation via the #GdkSurface:state
* property.
*/
void
gtk_window_minimize (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_if_fail (GTK_IS_WINDOW (window));
priv->minimize_initially = TRUE;
if (priv->surface)
gdk_toplevel_minimize (GDK_TOPLEVEL (priv->surface));
}
/**
* gtk_window_unminimize:
* @window: a #GtkWindow
*
* Asks to unminimize the specified @window.
*
* Note that you shouldn’t assume the window is definitely unminimized
* afterward, because the windowing system might not support this
* functionality; other entities (e.g. the user or the [window manager][gtk-X11-arch])
* could minimize it again, or there may not be a window manager in
* which case minimization isn’t possible, etc.
*
* You can track result of this operation via the #GdkSurface:state
* property.
*/
void
gtk_window_unminimize (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_if_fail (GTK_IS_WINDOW (window));
priv->minimize_initially = FALSE;
gtk_window_update_toplevel (window);
}
/**
* gtk_window_maximize:
* @window: a #GtkWindow
*
* Asks to maximize @window, so that it becomes full-screen. Note that
* you shouldn’t assume the window is definitely maximized afterward,
* because other entities (e.g. the user or
* [window manager][gtk-X11-arch]) could unmaximize it
* again, and not all window managers support maximization. But
* normally the window will end up maximized. Just don’t write code
* that crashes if not.
*
* It’s permitted to call this function before showing a window,
* in which case the window will be maximized when it appears onscreen
* initially.
*
* You can track the result of this operation via the #GdkSurface:state
* property, or by listening to notifications on the #GtkWindow:is-maximized
* property.
*/
void
gtk_window_maximize (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_if_fail (GTK_IS_WINDOW (window));
priv->maximize_initially = TRUE;
gtk_window_update_toplevel (window);
}
/**
* gtk_window_unmaximize:
* @window: a #GtkWindow
*
* Asks to unmaximize @window. Note that you shouldn’t assume the
* window is definitely unmaximized afterward, because other entities
* (e.g. the user or [window manager][gtk-X11-arch])
* could maximize it again, and not all window
* managers honor requests to unmaximize. But normally the window will
* end up unmaximized. Just don’t write code that crashes if not.
*
* You can track the result of this operation via the #GdkSurface:state
* property, or by listening to notifications on the #GtkWindow:is-maximized
* property.
*/
void
gtk_window_unmaximize (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_if_fail (GTK_IS_WINDOW (window));
priv->maximize_initially = FALSE;
gtk_window_update_toplevel (window);
}
/**
* gtk_window_fullscreen:
* @window: a #GtkWindow
*
* Asks to place @window in the fullscreen state. Note that you
* shouldn’t assume the window is definitely full screen afterward,
* because other entities (e.g. the user or
* [window manager][gtk-X11-arch]) could unfullscreen it
* again, and not all window managers honor requests to fullscreen
* windows. But normally the window will end up fullscreen. Just
* don’t write code that crashes if not.
*
* You can track iconification via the #GdkSurface::state property
**/
void
gtk_window_fullscreen (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_if_fail (GTK_IS_WINDOW (window));
priv->fullscreen_initially = TRUE;
gtk_window_update_toplevel (window);
}
static void
unset_fullscreen_monitor (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (priv->initial_fullscreen_monitor)
{
g_signal_handlers_disconnect_by_func (priv->initial_fullscreen_monitor, unset_fullscreen_monitor, window);
g_object_unref (priv->initial_fullscreen_monitor);
priv->initial_fullscreen_monitor = NULL;
}
}
/**
* gtk_window_fullscreen_on_monitor:
* @window: a #GtkWindow
* @monitor: which monitor to go fullscreen on
*
* Asks to place @window in the fullscreen state. Note that you shouldn't assume
* the window is definitely full screen afterward.
*
* You can track iconification via the #GdkSurface::state property
*/
void
gtk_window_fullscreen_on_monitor (GtkWindow *window,
GdkMonitor *monitor)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_if_fail (GTK_IS_WINDOW (window));
g_return_if_fail (GDK_IS_MONITOR (monitor));
g_return_if_fail (gdk_monitor_is_valid (monitor));
gtk_window_set_display (window, gdk_monitor_get_display (monitor));
unset_fullscreen_monitor (window);
priv->initial_fullscreen_monitor = monitor;
g_signal_connect_swapped (priv->initial_fullscreen_monitor, "invalidate",
G_CALLBACK (unset_fullscreen_monitor), window);
g_object_ref (priv->initial_fullscreen_monitor);
priv->fullscreen_initially = TRUE;
gtk_window_update_toplevel (window);
}
/**
* gtk_window_unfullscreen:
* @window: a #GtkWindow
*
* Asks to toggle off the fullscreen state for @window. Note that you
* shouldn’t assume the window is definitely not full screen
* afterward, because other entities (e.g. the user or
* [window manager][gtk-X11-arch]) could fullscreen it
* again, and not all window managers honor requests to unfullscreen
* windows. But normally the window will end up restored to its normal
* state. Just don’t write code that crashes if not.
*
* You can track iconification via the #GdkSurface::state property
**/
void
gtk_window_unfullscreen (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_if_fail (GTK_IS_WINDOW (window));
unset_fullscreen_monitor (window);
priv->fullscreen_initially = FALSE;
gtk_window_update_toplevel (window);
}
/**
* gtk_window_set_resizable:
* @window: a #GtkWindow
* @resizable: %TRUE if the user can resize this window
*
* Sets whether the user can resize a window. Windows are user resizable
* by default.
**/
void
gtk_window_set_resizable (GtkWindow *window,
gboolean resizable)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_if_fail (GTK_IS_WINDOW (window));
resizable = (resizable != FALSE);
if (priv->resizable != resizable)
{
priv->resizable = resizable;
update_window_buttons (window);
gtk_widget_queue_resize (GTK_WIDGET (window));
g_object_notify_by_pspec (G_OBJECT (window), window_props[PROP_RESIZABLE]);
}
}
/**
* gtk_window_get_resizable:
* @window: a #GtkWindow
*
* Gets the value set by gtk_window_set_resizable().
*
* Returns: %TRUE if the user can resize the window
**/
gboolean
gtk_window_get_resizable (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_val_if_fail (GTK_IS_WINDOW (window), FALSE);
return priv->resizable;
}
/**
* gtk_window_set_display:
* @window: a #GtkWindow.
* @display: a #GdkDisplay.
*
* Sets the #GdkDisplay where the @window is displayed; if
* the window is already mapped, it will be unmapped, and
* then remapped on the new display.
*/
void
gtk_window_set_display (GtkWindow *window,
GdkDisplay *display)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWidget *widget;
gboolean was_mapped;
g_return_if_fail (GTK_IS_WINDOW (window));
g_return_if_fail (GDK_IS_DISPLAY (display));
if (display == priv->display)
return;
/* reset initial_fullscreen_monitor since they are relative to the screen */
unset_fullscreen_monitor (window);
widget = GTK_WIDGET (window);
was_mapped = _gtk_widget_get_mapped (widget);
if (was_mapped)
gtk_widget_unmap (widget);
if (_gtk_widget_get_realized (widget))
gtk_widget_unrealize (widget);
if (priv->transient_parent && gtk_widget_get_display (GTK_WIDGET (priv->transient_parent)) != display)
gtk_window_set_transient_for (window, NULL);
#ifdef GDK_WINDOWING_X11
g_signal_handlers_disconnect_by_func (gtk_settings_get_for_display (priv->display),
gtk_window_on_theme_variant_changed, window);
g_signal_connect (gtk_settings_get_for_display (display),
"notify::gtk-application-prefer-dark-theme",
G_CALLBACK (gtk_window_on_theme_variant_changed), window);
#endif
gtk_widget_unroot (widget);
priv->display = display;
gtk_widget_root (widget);
g_object_notify_by_pspec (G_OBJECT (window), window_props[PROP_DISPLAY]);
if (was_mapped)
gtk_widget_map (widget);
check_scale_changed (window);
}
static void
gtk_window_set_theme_variant (GtkWindow *window)
{
#ifdef GDK_WINDOWING_X11
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
gboolean dark_theme_requested;
g_object_get (gtk_settings_get_for_display (priv->display),
"gtk-application-prefer-dark-theme", &dark_theme_requested,
NULL);
if (GDK_IS_X11_SURFACE (priv->surface))
gdk_x11_surface_set_theme_variant (priv->surface,
dark_theme_requested ? "dark" : NULL);
#endif
}
#ifdef GDK_WINDOWING_X11
static void
gtk_window_on_theme_variant_changed (GtkSettings *settings,
GParamSpec *pspec,
GtkWindow *window)
{
gtk_window_set_theme_variant (window);
}
#endif
/**
* gtk_window_is_active:
* @window: a #GtkWindow
*
* Returns whether the window is part of the current active toplevel.
* (That is, the toplevel window receiving keystrokes.)
* The return value is %TRUE if the window is active toplevel itself.
* You might use this function if you wanted to draw a widget
* differently in an active window from a widget in an inactive window.
*
* Returns: %TRUE if the window part of the current active window.
**/
gboolean
gtk_window_is_active (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_val_if_fail (GTK_IS_WINDOW (window), FALSE);
return priv->is_active;
}
/**
* gtk_window_get_group:
* @window: (allow-none): a #GtkWindow, or %NULL
*
* Returns the group for @window or the default group, if
* @window is %NULL or if @window does not have an explicit
* window group.
*
* Returns: (transfer none): the #GtkWindowGroup for a window or the default group
*/
GtkWindowGroup *
gtk_window_get_group (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (window && priv->group)
return priv->group;
else
{
static GtkWindowGroup *default_group = NULL;
if (!default_group)
default_group = gtk_window_group_new ();
return default_group;
}
}
/**
* gtk_window_has_group:
* @window: a #GtkWindow
*
* Returns whether @window has an explicit window group.
*
* Returns: %TRUE if @window has an explicit window group.
**/
gboolean
gtk_window_has_group (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_val_if_fail (GTK_IS_WINDOW (window), FALSE);
return priv->group != NULL;
}
GtkWindowGroup *
_gtk_window_get_window_group (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
return priv->group;
}
void
_gtk_window_set_window_group (GtkWindow *window,
GtkWindowGroup *group)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
priv->group = group;
}
static gboolean
gtk_window_activate_menubar (GtkWidget *widget,
GVariant *args,
gpointer unused)
{
GtkWindow *window = GTK_WINDOW (widget);
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GList *tmp_menubars, *l;
GPtrArray *menubars;
GtkWidget *focus;
GtkWidget *first;
focus = gtk_window_get_focus (window);
if (priv->title_box != NULL &&
(focus == NULL || !gtk_widget_is_ancestor (focus, priv->title_box)) &&
gtk_widget_child_focus (priv->title_box, GTK_DIR_TAB_FORWARD))
return TRUE;
tmp_menubars = gtk_popover_menu_bar_get_viewable_menu_bars (window);
if (tmp_menubars == NULL)
return FALSE;
menubars = g_ptr_array_sized_new (g_list_length (tmp_menubars));;
for (l = tmp_menubars; l; l = l->next)
g_ptr_array_add (menubars, l->data);
g_list_free (tmp_menubars);
gtk_widget_focus_sort (GTK_WIDGET (window), GTK_DIR_TAB_FORWARD, menubars);
first = g_ptr_array_index (menubars, 0);
gtk_popover_menu_bar_select_first (GTK_POPOVER_MENU_BAR (first));
g_ptr_array_free (menubars, TRUE);
return TRUE;
}
static void
gtk_window_keys_changed (GtkWindow *window)
{
}
/*
* _gtk_window_set_is_active:
* @window: a #GtkWindow
* @is_active: %TRUE if the window is in the currently active toplevel
*
* Internal function that sets whether the #GtkWindow is part
* of the currently active toplevel window (taking into account inter-process
* embedding.)
**/
static void
_gtk_window_set_is_active (GtkWindow *window,
gboolean is_active)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (priv->is_active == is_active)
return;
priv->is_active = is_active;
g_object_notify_by_pspec (G_OBJECT (window), window_props[PROP_IS_ACTIVE]);
_gtk_window_accessible_set_is_active (window, is_active);
}
/**
* gtk_window_set_auto_startup_notification:
* @setting: %TRUE to automatically do startup notification
*
* By default, after showing the first #GtkWindow, GTK+ calls
* gdk_notify_startup_complete(). Call this function to disable
* the automatic startup notification. You might do this if your
* first window is a splash screen, and you want to delay notification
* until after your real main window has been shown, for example.
*
* In that example, you would disable startup notification
* temporarily, show your splash screen, then re-enable it so that
* showing the main window would automatically result in notification.
**/
void
gtk_window_set_auto_startup_notification (gboolean setting)
{
disable_startup_notification = !setting;
}
/**
* gtk_window_get_mnemonics_visible:
* @window: a #GtkWindow
*
* Gets the value of the #GtkWindow:mnemonics-visible property.
*
* Returns: %TRUE if mnemonics are supposed to be visible
* in this window.
*/
gboolean
gtk_window_get_mnemonics_visible (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_val_if_fail (GTK_IS_WINDOW (window), FALSE);
return priv->mnemonics_visible;
}
/**
* gtk_window_set_mnemonics_visible:
* @window: a #GtkWindow
* @setting: the new value
*
* Sets the #GtkWindow:mnemonics-visible property.
*/
void
gtk_window_set_mnemonics_visible (GtkWindow *window,
gboolean setting)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_if_fail (GTK_IS_WINDOW (window));
setting = setting != FALSE;
if (priv->mnemonics_visible != setting)
{
priv->mnemonics_visible = setting;
g_object_notify_by_pspec (G_OBJECT (window), window_props[PROP_MNEMONICS_VISIBLE]);
}
if (priv->mnemonics_display_timeout_id)
{
g_source_remove (priv->mnemonics_display_timeout_id);
priv->mnemonics_display_timeout_id = 0;
}
}
static gboolean
schedule_mnemonics_visible_cb (gpointer data)
{
GtkWindow *window = data;
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
priv->mnemonics_display_timeout_id = 0;
gtk_window_set_mnemonics_visible (window, TRUE);
return FALSE;
}
void
_gtk_window_schedule_mnemonics_visible (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_if_fail (GTK_IS_WINDOW (window));
if (priv->mnemonics_display_timeout_id)
return;
priv->mnemonics_display_timeout_id =
g_timeout_add (MNEMONICS_DELAY, schedule_mnemonics_visible_cb, window);
g_source_set_name_by_id (priv->mnemonics_display_timeout_id, "[gtk] schedule_mnemonics_visible_cb");
}
/**
* gtk_window_get_focus_visible:
* @window: a #GtkWindow
*
* Gets the value of the #GtkWindow:focus-visible property.
*
* Returns: %TRUE if “focus rectangles” are supposed to be visible
* in this window.
*/
gboolean
gtk_window_get_focus_visible (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_val_if_fail (GTK_IS_WINDOW (window), FALSE);
return priv->focus_visible;
}
/**
* gtk_window_set_focus_visible:
* @window: a #GtkWindow
* @setting: the new value
*
* Sets the #GtkWindow:focus-visible property.
*/
void
gtk_window_set_focus_visible (GtkWindow *window,
gboolean setting)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_if_fail (GTK_IS_WINDOW (window));
setting = setting != FALSE;
if (priv->focus_visible != setting)
{
priv->focus_visible = setting;
g_object_notify_by_pspec (G_OBJECT (window), window_props[PROP_FOCUS_VISIBLE]);
}
}
/**
* gtk_window_set_has_user_ref_count:
* @window: a #GtkWindow
* @setting: the new value
*
* Tells GTK+ whether to drop its extra reference to the window
* when gtk_widget_destroy() is called.
*
* This function is only exported for the benefit of language
* bindings which may need to keep the window alive until their
* wrapper object is garbage collected. There is no justification
* for ever calling this function in an application.
*/
void
gtk_window_set_has_user_ref_count (GtkWindow *window,
gboolean setting)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
g_return_if_fail (GTK_IS_WINDOW (window));
priv->has_user_ref_count = setting;
}
static void
ensure_state_flag_backdrop (GtkWidget *widget)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (GTK_WINDOW (widget));
gboolean surface_focused = TRUE;
surface_focused = gdk_toplevel_get_state (GDK_TOPLEVEL (priv->surface)) & GDK_SURFACE_STATE_FOCUSED;
if (!surface_focused)
gtk_widget_set_state_flags (widget, GTK_STATE_FLAG_BACKDROP, FALSE);
else
gtk_widget_unset_state_flags (widget, GTK_STATE_FLAG_BACKDROP);
}
void
_gtk_window_get_shadow_width (GtkWindow *window,
GtkBorder *border)
{
get_shadow_width (window, border);
}
static void set_warn_again (gboolean warn);
static void gtk_window_set_debugging (GdkDisplay *display,
gboolean enable,
gboolean toggle,
gboolean select,
gboolean warn);
static void
warn_response (GtkDialog *dialog,
gint response)
{
GtkWidget *check;
gboolean remember;
GtkWidget *inspector_window;
GdkDisplay *display;
inspector_window = GTK_WIDGET (gtk_window_get_transient_for (GTK_WINDOW (dialog)));
display = gtk_inspector_window_get_inspected_display (GTK_INSPECTOR_WINDOW (inspector_window));
check = g_object_get_data (G_OBJECT (dialog), "check");
remember = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (check));
gtk_widget_destroy (GTK_WIDGET (dialog));
g_object_set_data (G_OBJECT (inspector_window), "warning_dialog", NULL);
if (response == GTK_RESPONSE_NO)
gtk_window_set_debugging (display, FALSE, FALSE, FALSE, FALSE);
else
set_warn_again (!remember);
}
static void
gtk_window_set_debugging (GdkDisplay *display,
gboolean enable,
gboolean toggle,
gboolean select,
gboolean warn)
{
GtkWidget *dialog = NULL;
GtkWidget *area;
GtkWidget *check;
GtkWidget *inspector_window;
gboolean was_debugging;
was_debugging = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (display), "-gtk-debugging-enabled"));
if (toggle)
enable = !was_debugging;
g_object_set_data (G_OBJECT (display), "-gtk-debugging-enabled", GINT_TO_POINTER (enable));
if (enable)
{
inspector_window = gtk_inspector_window_get (display);
gtk_window_present (GTK_WINDOW (inspector_window));
if (warn)
{
dialog = gtk_message_dialog_new (GTK_WINDOW (inspector_window),
GTK_DIALOG_MODAL|GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_QUESTION,
GTK_BUTTONS_NONE,
_("Do you want to use GTK Inspector?"));
gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog),
_("GTK Inspector is an interactive debugger that lets you explore and "
"modify the internals of any GTK application. Using it may cause the "
"application to break or crash."));
area = gtk_message_dialog_get_message_area (GTK_MESSAGE_DIALOG (dialog));
check = gtk_check_button_new_with_label (_("Don’t show this message again"));
gtk_widget_set_margin_start (check, 10);
gtk_widget_show (check);
gtk_container_add (GTK_CONTAINER (area), check);
g_object_set_data (G_OBJECT (dialog), "check", check);
gtk_dialog_add_button (GTK_DIALOG (dialog), _("_Cancel"), GTK_RESPONSE_NO);
gtk_dialog_add_button (GTK_DIALOG (dialog), _("_OK"), GTK_RESPONSE_YES);
g_signal_connect (dialog, "response", G_CALLBACK (warn_response), inspector_window);
g_object_set_data (G_OBJECT (inspector_window), "warning_dialog", dialog);
gtk_widget_show (dialog);
}
if (select)
gtk_inspector_window_select_widget_under_pointer (GTK_INSPECTOR_WINDOW (inspector_window));
}
else if (was_debugging)
{
inspector_window = gtk_inspector_window_get (display);
gtk_widget_hide (inspector_window);
}
}
/**
* gtk_window_set_interactive_debugging:
* @enable: %TRUE to enable interactive debugging
*
* Opens or closes the [interactive debugger][interactive-debugging],
* which offers access to the widget hierarchy of the application
* and to useful debugging tools.
*/
void
gtk_window_set_interactive_debugging (gboolean enable)
{
GdkDisplay *display = gdk_display_get_default ();
gtk_window_set_debugging (display, enable, FALSE, FALSE, FALSE);
}
static gboolean
inspector_keybinding_enabled (gboolean *warn)
{
GSettingsSchema *schema;
GSettings *settings;
gboolean enabled;
enabled = FALSE;
*warn = FALSE;
schema = g_settings_schema_source_lookup (g_settings_schema_source_get_default (),
"org.gtk.gtk4.Settings.Debug",
TRUE);
if (schema)
{
settings = g_settings_new_full (schema, NULL, NULL);
enabled = g_settings_get_boolean (settings, "enable-inspector-keybinding");
*warn = g_settings_get_boolean (settings, "inspector-warning");
g_object_unref (settings);
g_settings_schema_unref (schema);
}
return enabled;
}
static void
set_warn_again (gboolean warn)
{
GSettingsSchema *schema;
GSettings *settings;
schema = g_settings_schema_source_lookup (g_settings_schema_source_get_default (),
"org.gtk.gtk4.Settings.Debug",
TRUE);
if (schema)
{
settings = g_settings_new_full (schema, NULL, NULL);
g_settings_set_boolean (settings, "inspector-warning", warn);
g_object_unref (settings);
g_settings_schema_unref (schema);
}
}
static gboolean
gtk_window_enable_debugging (GtkWindow *window,
gboolean toggle)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
gboolean warn;
if (!inspector_keybinding_enabled (&warn))
return FALSE;
gtk_window_set_debugging (priv->display, TRUE, toggle, !toggle, warn);
return TRUE;
}
#ifdef GDK_WINDOWING_WAYLAND
typedef struct {
GtkWindow *window;
GtkWindowHandleExported callback;
gpointer user_data;
} WaylandSurfaceHandleExportedData;
static void
wayland_surface_handle_exported (GdkSurface *window,
const char *wayland_handle_str,
gpointer user_data)
{
WaylandSurfaceHandleExportedData *data = user_data;
char *handle_str;
handle_str = g_strdup_printf ("wayland:%s", wayland_handle_str);
data->callback (data->window, handle_str, data->user_data);
g_free (handle_str);
}
#endif
gboolean
gtk_window_export_handle (GtkWindow *window,
GtkWindowHandleExported callback,
gpointer user_data)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
#ifdef GDK_WINDOWING_X11
if (GDK_IS_X11_DISPLAY (gtk_widget_get_display (GTK_WIDGET (window))))
{
char *handle_str;
guint32 xid = (guint32) gdk_x11_surface_get_xid (priv->surface);
handle_str = g_strdup_printf ("x11:%x", xid);
callback (window, handle_str, user_data);
g_free (handle_str);
return TRUE;
}
#endif
#ifdef GDK_WINDOWING_WAYLAND
if (GDK_IS_WAYLAND_DISPLAY (gtk_widget_get_display (GTK_WIDGET (window))))
{
WaylandSurfaceHandleExportedData *data;
data = g_new0 (WaylandSurfaceHandleExportedData, 1);
data->window = window;
data->callback = callback;
data->user_data = user_data;
if (!gdk_wayland_surface_export_handle (priv->surface,
wayland_surface_handle_exported,
data,
g_free))
{
g_free (data);
return FALSE;
}
else
{
return TRUE;
}
}
#endif
g_warning ("Couldn't export handle for %s surface, unsupported windowing system",
G_OBJECT_TYPE_NAME (priv->surface));
return FALSE;
}
void
gtk_window_unexport_handle (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
#ifdef GDK_WINDOWING_WAYLAND
if (GDK_IS_WAYLAND_DISPLAY (gtk_widget_get_display (GTK_WIDGET (window))))
{
gdk_wayland_surface_unexport_handle (priv->surface);
return;
}
#endif
g_warning ("Couldn't unexport handle for %s surface, unsupported windowing system",
G_OBJECT_TYPE_NAME (priv->surface));
}
static GtkPointerFocus *
gtk_window_lookup_pointer_focus (GtkWindow *window,
GdkDevice *device,
GdkEventSequence *sequence)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GList *l;
for (l = priv->foci; l; l = l->next)
{
GtkPointerFocus *focus = l->data;
if (focus->device == device && focus->sequence == sequence)
return focus;
}
return NULL;
}
GtkWidget *
gtk_window_lookup_pointer_focus_widget (GtkWindow *window,
GdkDevice *device,
GdkEventSequence *sequence)
{
GtkPointerFocus *focus;
focus = gtk_window_lookup_pointer_focus (window, device, sequence);
return focus ? gtk_pointer_focus_get_target (focus) : NULL;
}
GtkWidget *
gtk_window_lookup_effective_pointer_focus_widget (GtkWindow *window,
GdkDevice *device,
GdkEventSequence *sequence)
{
GtkPointerFocus *focus;
focus = gtk_window_lookup_pointer_focus (window, device, sequence);
return focus ? gtk_pointer_focus_get_effective_target (focus) : NULL;
}
GtkWidget *
gtk_window_lookup_pointer_focus_implicit_grab (GtkWindow *window,
GdkDevice *device,
GdkEventSequence *sequence)
{
GtkPointerFocus *focus;
focus = gtk_window_lookup_pointer_focus (window, device, sequence);
return focus ? gtk_pointer_focus_get_implicit_grab (focus) : NULL;
}
void
gtk_window_update_pointer_focus (GtkWindow *window,
GdkDevice *device,
GdkEventSequence *sequence,
GtkWidget *target,
gdouble x,
gdouble y)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkPointerFocus *focus;
focus = gtk_window_lookup_pointer_focus (window, device, sequence);
if (focus)
{
gtk_pointer_focus_ref (focus);
if (target)
{
gtk_pointer_focus_set_target (focus, target);
gtk_pointer_focus_set_coordinates (focus, x, y);
}
else
{
GList *pos;
pos = g_list_find (priv->foci, focus);
if (pos)
{
priv->foci = g_list_remove (priv->foci, focus);
gtk_pointer_focus_unref (focus);
}
}
gtk_pointer_focus_unref (focus);
}
else if (target)
{
focus = gtk_pointer_focus_new (window, target, device, sequence, x, y);
priv->foci = g_list_prepend (priv->foci, focus);
}
}
void
gtk_window_update_pointer_focus_on_state_change (GtkWindow *window,
GtkWidget *widget)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GList *l = priv->foci;
while (l)
{
GList *next;
GtkPointerFocus *focus = l->data;
next = l->next;
gtk_pointer_focus_ref (focus);
if (focus->grab_widget &&
(focus->grab_widget == widget ||
gtk_widget_is_ancestor (focus->grab_widget, widget)))
gtk_pointer_focus_set_implicit_grab (focus, NULL);
if (GTK_WIDGET (focus->toplevel) == widget)
{
/* Unmapping the toplevel, remove pointer focus */
priv->foci = g_list_remove_link (priv->foci, l);
gtk_pointer_focus_unref (focus);
g_list_free (l);
}
else if (focus->target == widget ||
gtk_widget_is_ancestor (focus->target, widget))
{
gtk_pointer_focus_repick_target (focus);
}
gtk_pointer_focus_unref (focus);
l = next;
}
}
void
gtk_window_maybe_revoke_implicit_grab (GtkWindow *window,
GdkDevice *device,
GtkWidget *grab_widget)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GList *l = priv->foci;
while (l)
{
GtkPointerFocus *focus = l->data;
l = l->next;
if (focus->toplevel != window)
continue;
if (device && focus->device == device &&
focus->target != grab_widget &&
!gtk_widget_is_ancestor (focus->target, grab_widget))
gtk_window_set_pointer_focus_grab (window,
focus->device,
focus->sequence,
NULL);
}
}
void
gtk_window_set_pointer_focus_grab (GtkWindow *window,
GdkDevice *device,
GdkEventSequence *sequence,
GtkWidget *grab_widget)
{
GtkPointerFocus *focus;
focus = gtk_window_lookup_pointer_focus (window, device, sequence);
if (!focus && !grab_widget)
return;
g_assert (focus != NULL);
gtk_pointer_focus_set_implicit_grab (focus, grab_widget);
}
static void
update_cursor (GtkWindow *toplevel,
GdkDevice *device,
GtkWidget *grab_widget,
GtkWidget *target)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (toplevel);
GdkCursor *cursor = NULL;
GdkSurface *surface;
surface = gtk_native_get_surface (gtk_widget_get_native (target));
if (grab_widget && !gtk_widget_is_ancestor (target, grab_widget) && target != grab_widget)
{
/* Outside the grab widget, cursor stays to whatever the grab
* widget says.
*/
if (gtk_native_get_surface (gtk_widget_get_native (grab_widget)) == surface)
cursor = gtk_widget_get_cursor (grab_widget);
else
cursor = NULL;
}
else
{
/* Inside the grab widget or in absence of grabs, allow walking
* up the hierarchy to find out the cursor.
*/
while (target)
{
/* Don't inherit cursors across surfaces */
if (surface != gtk_native_get_surface (gtk_widget_get_native (target)))
break;
if (target == GTK_WIDGET (toplevel) && priv->resize_cursor != NULL)
cursor = priv->resize_cursor;
else
cursor = gtk_widget_get_cursor (target);
if (cursor)
break;
if (grab_widget && target == grab_widget)
break;
target = _gtk_widget_get_parent (target);
}
}
gdk_surface_set_device_cursor (surface, device, cursor);
}
void
gtk_window_maybe_update_cursor (GtkWindow *window,
GtkWidget *widget,
GdkDevice *device)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GList *l;
for (l = priv->foci; l; l = l->next)
{
GtkPointerFocus *focus = l->data;
GtkWidget *grab_widget, *target;
GtkWindowGroup *group;
if (focus->sequence)
continue;
if (device && device != focus->device)
continue;
group = gtk_window_get_group (window);
grab_widget = gtk_window_group_get_current_grab (group);
if (!grab_widget)
grab_widget = gtk_pointer_focus_get_implicit_grab (focus);
target = gtk_pointer_focus_get_target (focus);
if (widget)
{
/* Check whether the changed widget affects the current cursor
* lookups.
*/
if (grab_widget && grab_widget != widget &&
!gtk_widget_is_ancestor (widget, grab_widget))
continue;
if (target != widget &&
!gtk_widget_is_ancestor (target, widget))
continue;
}
update_cursor (focus->toplevel, focus->device, grab_widget, target);
if (device)
break;
}
}
static gboolean
gtk_window_needs_layout (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (priv->restyle_pending)
return TRUE;
return gtk_widget_needs_allocate (GTK_WIDGET (window));
}
static void
gtk_window_layout_cb (GdkFrameClock *clock,
GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GtkWidget *widget = GTK_WIDGET (window);
/* We validate the style contexts in a single loop before even trying
* to handle resizes instead of doing validations inline.
* This is mostly necessary for compatibility reasons with old code,
* because both css_changed and size_allocate functions often change
* styles and so could cause infinite loops in this function.
*
* It's important to note that even an invalid style context returns
* sane values. So the result of an invalid style context will never be
* a program crash, but only a wrong layout or rendering.
*/
if (priv->restyle_pending)
{
priv->restyle_pending = FALSE;
gtk_css_node_validate (gtk_widget_get_css_node (widget));
}
/* we may be invoked with a container_resize_queue of NULL, because
* queue_resize could have been adding an extra idle function while
* the queue still got processed. we better just ignore such case
* than trying to explicitly work around them with some extra flags,
* since it doesn't cause any actual harm.
*/
if (gtk_widget_needs_allocate (widget))
gtk_native_check_resize (GTK_NATIVE (window));
if (!gtk_window_needs_layout (window))
gtk_window_stop_layout (window);
else
gdk_frame_clock_request_phase (clock, GDK_FRAME_CLOCK_PHASE_LAYOUT);
}
void
gtk_window_start_layout (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GdkFrameClock *clock;
if (priv->resize_handler != 0)
return;
if (!gtk_window_needs_layout (window))
return;
clock = gtk_widget_get_frame_clock (GTK_WIDGET (window));
if (clock == NULL)
return;
priv->resize_handler = g_signal_connect (clock, "layout",
G_CALLBACK (gtk_window_layout_cb), window);
gdk_frame_clock_request_phase (clock, GDK_FRAME_CLOCK_PHASE_LAYOUT);
}
void
gtk_window_stop_layout (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
GdkFrameClock *clock;
if (priv->resize_handler == 0)
return;
clock = gtk_widget_get_frame_clock (GTK_WIDGET (window));
g_signal_handler_disconnect (clock, priv->resize_handler);
priv->resize_handler = 0;
}
void
gtk_window_queue_restyle (GtkWindow *window)
{
GtkWindowPrivate *priv = gtk_window_get_instance_private (window);
if (priv->restyle_pending)
return;
priv->restyle_pending = TRUE;
gtk_window_start_layout (window);
}
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