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gtk/gtk/gtkpopover.c
Carlos Garnacho a5414bc404 gtkpopover: Fix key navigation 
This has been broken since we switched key event delivery to follow
the same semantics than pointer/touch. There, GTK+ grabs will influence
the topmost widget during event delivery, rendering the toplevel
unable to handle key navigation. The toplevel must handle those key
events in an explicit manner then.

We don't render the keyboard focus rectangle yet, but I assume that's
something else.
2018-06-21 12:50:57 +02:00

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/* GTK - The GIMP Toolkit
* Copyright © 2013 Carlos Garnacho <carlosg@gnome.org>
*
* 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/>.
*/
/**
* SECTION:gtkpopover
* @Short_description: Context dependent bubbles
* @Title: GtkPopover
*
* GtkPopover is a bubble-like context window, primarily meant to
* provide context-dependent information or options. Popovers are
* attached to a widget, passed at construction time on gtk_popover_new(),
* or updated afterwards through gtk_popover_set_relative_to(), by
* default they will point to the whole widget area, although this
* behavior can be changed through gtk_popover_set_pointing_to().
*
* The position of a popover relative to the widget it is attached to
* can also be changed through gtk_popover_set_position().
*
* By default, #GtkPopover performs a GTK+ grab, in order to ensure
* input events get redirected to it while it is shown, and also so
* the popover is dismissed in the expected situations (clicks outside
* the popover, or the Esc key being pressed). If no such modal behavior
* is desired on a popover, gtk_popover_set_modal() may be called on it
* to tweak its behavior.
*
* ## GtkPopover as menu replacement
*
* GtkPopover is often used to replace menus. To facilitate this, it
* supports being populated from a #GMenuModel, using
* gtk_popover_new_from_model(). In addition to all the regular menu
* model features, this function supports rendering sections in the
* model in a more compact form, as a row of icon buttons instead of
* menu items.
*
* To use this rendering, set the ”display-hint” attribute of the
* section to ”horizontal-buttons” and set the icons of your items
* with the ”verb-icon” attribute.
*
* |[
* <section>
* <attribute name="display-hint">horizontal-buttons</attribute>
* <item>
* <attribute name="label">Cut</attribute>
* <attribute name="action">app.cut</attribute>
* <attribute name="verb-icon">edit-cut-symbolic</attribute>
* </item>
* <item>
* <attribute name="label">Copy</attribute>
* <attribute name="action">app.copy</attribute>
* <attribute name="verb-icon">edit-copy-symbolic</attribute>
* </item>
* <item>
* <attribute name="label">Paste</attribute>
* <attribute name="action">app.paste</attribute>
* <attribute name="verb-icon">edit-paste-symbolic</attribute>
* </item>
* </section>
* ]|
*
* # CSS nodes
*
* |[<!-- language="plain" -->
* popover
* ├── arrow
* ╰── contents.background[.menu]
* ╰── <child>
* ]|
*
* The contents child node always gets the .background style class and it
* gets the .menu style class if the popover is menu-like (e.g. #GtkPopoverMenu
* or created using gtk_popover_new_from_model()).
*
* Particular uses of GtkPopover, such as touch selection popups
* or magnifiers in #GtkEntry or #GtkTextView get style classes
* like .touch-selection or .magnifier to differentiate from
* plain popovers.
*
* When styling a popover directly, the popover node should usually not have any
* background.
*
* Note that, in order to accomplish appropriate arrow visuals, #GtkPopover uses
* custom drawing for the arrow node. This makes it possible for the arrow to change
* its shape dynamically, but it also limits the possibilities of styling it using CSS.
* In particular, the arrow gets drawn over the content node's border so they look
* like one shape, which means that the border-width of the content node and the arrow
* node should be the same. The arrow also does not support any border shape other than
* solid, no border-radius, only one border width (border-bottom-width is used) and no box-shadow.
*/
#include "config.h"
#include "gtkpopoverprivate.h"
#include "gtkadjustment.h"
#include "gtkbox.h"
#include "gtkbutton.h"
#include "gtkcontainerprivate.h"
#include "gtkcssnodeprivate.h"
#include "gtkentry.h"
#include "gtkgizmoprivate.h"
#include "gtkintl.h"
#include "gtklabel.h"
#include "gtkmain.h"
#include "gtkmenusectionbox.h"
#include "gtkmenutracker.h"
#include "gtkmodelbutton.h"
#include "gtkprivate.h"
#include "gtkprogresstrackerprivate.h"
#include "gtkrender.h"
#include "gtkroundedboxprivate.h"
#include "gtkscrollable.h"
#include "gtksettingsprivate.h"
#include "gtksizegroup.h"
#include "gtksnapshot.h"
#include "gtkstack.h"
#include "gtkstylecontextprivate.h"
#include "gtktypebuiltins.h"
#include "gtkwidgetprivate.h"
#include "gtkwindowprivate.h"
#include "gtkgesturemultipress.h"
#include "gtkeventcontrollerkey.h"
#include "a11y/gtkpopoveraccessible.h"
#include "gsk/gskroundedrectprivate.h"
#ifdef GDK_WINDOWING_WAYLAND
#include "wayland/gdkwayland.h"
#endif
#define TAIL_GAP_WIDTH 24
#define TAIL_HEIGHT 12
#define TRANSITION_DIFF 20
#define TRANSITION_DURATION 150 * 1000
#define POS_IS_VERTICAL(p) ((p) == GTK_POS_TOP || (p) == GTK_POS_BOTTOM)
enum {
PROP_RELATIVE_TO = 1,
PROP_POINTING_TO,
PROP_POSITION,
PROP_MODAL,
PROP_CONSTRAIN_TO,
NUM_PROPERTIES
};
enum {
CLOSED,
N_SIGNALS
};
enum {
STATE_SHOWING,
STATE_SHOWN,
STATE_HIDING,
STATE_HIDDEN
};
typedef struct _GtkPopoverPrivate GtkPopoverPrivate;
struct _GtkPopoverPrivate
{
GtkWidget *widget;
GtkWidget *contents_widget;
GtkCssNode *arrow_node;
GtkWindow *window;
GtkWidget *prev_focus_widget;
GtkWidget *default_widget;
GtkWidget *prev_default;
GtkScrollable *parent_scrollable;
GtkAdjustment *vadj;
GtkAdjustment *hadj;
GdkRectangle pointing_to;
GtkPopoverConstraint constraint;
GtkProgressTracker tracker;
guint prev_focus_unmap_id;
guint hierarchy_changed_id;
guint size_allocate_id;
guint unmap_id;
guint scrollable_notify_id;
guint grab_notify_id;
guint state_changed_id;
guint has_pointing_to : 1;
guint preferred_position : 2;
guint final_position : 2;
guint current_position : 2;
guint modal : 1;
guint button_pressed : 1;
guint grab_notify_blocked : 1;
guint state : 2;
guint visible : 1;
guint first_frame_skipped : 1;
gint transition_diff;
guint tick_id;
gint tip_x;
gint tip_y;
};
static GParamSpec *properties[NUM_PROPERTIES];
static GQuark quark_widget_popovers = 0;
static guint signals[N_SIGNALS] = { 0 };
static void gtk_popover_update_relative_to (GtkPopover *popover,
GtkWidget *relative_to);
static void gtk_popover_set_state (GtkPopover *popover,
guint state);
static void gtk_popover_apply_modality (GtkPopover *popover,
gboolean modal);
static void gtk_popover_set_scrollable_full (GtkPopover *popover,
GtkScrollable *scrollable);
G_DEFINE_TYPE_WITH_PRIVATE (GtkPopover, gtk_popover, GTK_TYPE_BIN)
static void
measure_contents (GtkGizmo *gizmo,
GtkOrientation orientation,
int for_size,
int *minimum,
int *natural,
int *minimum_baseline,
int *natural_baseline)
{
GtkPopover *popover = GTK_POPOVER (gtk_widget_get_parent (GTK_WIDGET (gizmo)));
GtkWidget *child = gtk_bin_get_child (GTK_BIN (popover));
if (child)
gtk_widget_measure (child, orientation, for_size,
minimum, natural,
minimum_baseline, natural_baseline);
}
static void
allocate_contents (GtkGizmo *gizmo,
const GtkAllocation *allocation,
int baseline)
{
GtkPopover *popover = GTK_POPOVER (gtk_widget_get_parent (GTK_WIDGET (gizmo)));
GtkWidget *child = gtk_bin_get_child (GTK_BIN (popover));
if (child)
gtk_widget_size_allocate (child, allocation, -1);
}
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 gboolean
key_controller_key_pressed (GtkEventControllerKey *key,
guint keyval,
guint keycode,
GdkModifierType modifiers,
GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkWidget *toplevel, *focus;
if (keyval == GDK_KEY_Escape)
{
gtk_popover_popdown (popover);
return TRUE;
}
if (priv->modal)
{
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (popover));
if (GTK_IS_WINDOW (toplevel))
{
focus = gtk_window_get_focus (GTK_WINDOW (toplevel));
if (focus && gtk_widget_is_ancestor (focus, GTK_WIDGET (popover)))
{
if (gtk_event_controller_key_forward (key, focus))
return TRUE;
}
/* Piggyback on the toplevel to have it handle key navigation */
return gtk_event_controller_key_forward (key, toplevel);
}
}
return FALSE;
}
static void
gesture_pressed (GtkGestureMultiPress *gesture,
gint n_press,
gdouble x,
gdouble y,
GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
priv->button_pressed = TRUE;
}
static void
gesture_released (GtkGestureMultiPress *gesture,
gint n_press,
gdouble x,
gdouble y,
GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkAllocation child_alloc;
GtkWidget *child;
if (!priv->button_pressed)
return;
child = gtk_bin_get_child (GTK_BIN (popover));
gtk_widget_get_allocation (child, &child_alloc);
if (x < child_alloc.x ||
x > child_alloc.x + child_alloc.width ||
y < child_alloc.y ||
y > child_alloc.y + child_alloc.height)
gtk_popover_popdown (popover);
}
static void
gtk_popover_init (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkWidget *widget;
GtkStyleContext *context;
GtkEventController *controller;
widget = GTK_WIDGET (popover);
gtk_widget_set_has_surface (widget, TRUE);
priv->modal = TRUE;
priv->tick_id = 0;
priv->state = STATE_HIDDEN;
priv->visible = FALSE;
priv->preferred_position = GTK_POS_TOP;
priv->constraint = GTK_POPOVER_CONSTRAINT_WINDOW;
priv->arrow_node = gtk_css_node_new ();
gtk_css_node_set_name (priv->arrow_node, I_("arrow"));
gtk_css_node_set_parent (priv->arrow_node, gtk_widget_get_css_node (widget));
gtk_css_node_set_state (priv->arrow_node,
gtk_css_node_get_state (gtk_widget_get_css_node (widget)));
g_signal_connect_object (priv->arrow_node, "style-changed",
G_CALLBACK (node_style_changed_cb), popover, 0);
g_object_unref (priv->arrow_node);
priv->contents_widget = gtk_gizmo_new ("contents",
measure_contents,
allocate_contents,
NULL);
gtk_widget_set_parent (priv->contents_widget, widget);
context = gtk_widget_get_style_context (priv->contents_widget);
gtk_style_context_add_class (context, GTK_STYLE_CLASS_BACKGROUND);
controller = gtk_event_controller_key_new ();
g_signal_connect (controller, "key-pressed",
G_CALLBACK (key_controller_key_pressed), popover);
gtk_widget_add_controller (widget, controller);
controller = GTK_EVENT_CONTROLLER (gtk_gesture_multi_press_new ());
g_signal_connect (controller, "pressed",
G_CALLBACK (gesture_pressed), popover);
g_signal_connect (controller, "released",
G_CALLBACK (gesture_released), popover);
gtk_widget_add_controller (widget, controller);
}
static void
gtk_popover_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
switch (prop_id)
{
case PROP_RELATIVE_TO:
gtk_popover_set_relative_to (GTK_POPOVER (object),
g_value_get_object (value));
break;
case PROP_POINTING_TO:
gtk_popover_set_pointing_to (GTK_POPOVER (object),
g_value_get_boxed (value));
break;
case PROP_POSITION:
gtk_popover_set_position (GTK_POPOVER (object),
g_value_get_enum (value));
break;
case PROP_MODAL:
gtk_popover_set_modal (GTK_POPOVER (object),
g_value_get_boolean (value));
break;
case PROP_CONSTRAIN_TO:
gtk_popover_set_constrain_to (GTK_POPOVER (object),
g_value_get_enum (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
gtk_popover_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (GTK_POPOVER (object));
switch (prop_id)
{
case PROP_RELATIVE_TO:
g_value_set_object (value, priv->widget);
break;
case PROP_POINTING_TO:
g_value_set_boxed (value, &priv->pointing_to);
break;
case PROP_POSITION:
g_value_set_enum (value, priv->preferred_position);
break;
case PROP_MODAL:
g_value_set_boolean (value, priv->modal);
break;
case PROP_CONSTRAIN_TO:
g_value_set_enum (value, priv->constraint);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static gboolean
transitions_enabled (GtkPopover *popover)
{
return gtk_settings_get_enable_animations (gtk_widget_get_settings (GTK_WIDGET (popover)));
}
static void
gtk_popover_hide_internal (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkWidget *widget = GTK_WIDGET (popover);
if (!priv->visible)
return;
priv->visible = FALSE;
g_signal_emit (widget, signals[CLOSED], 0);
if (priv->modal)
gtk_popover_apply_modality (popover, FALSE);
if (gtk_widget_get_realized (widget))
{
cairo_region_t *region = cairo_region_create ();
gdk_surface_input_shape_combine_region (gtk_widget_get_surface (widget),
region, 0, 0);
cairo_region_destroy (region);
}
}
static void
gtk_popover_finalize (GObject *object)
{
GtkPopover *popover = GTK_POPOVER (object);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (priv->widget)
gtk_popover_update_relative_to (popover, NULL);
G_OBJECT_CLASS (gtk_popover_parent_class)->finalize (object);
}
static void
popover_unset_prev_focus (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (!priv->prev_focus_widget)
return;
if (priv->prev_focus_unmap_id)
{
g_signal_handler_disconnect (priv->prev_focus_widget,
priv->prev_focus_unmap_id);
priv->prev_focus_unmap_id = 0;
}
g_clear_object (&priv->prev_focus_widget);
}
static void
gtk_popover_dispose (GObject *object)
{
GtkPopover *popover = GTK_POPOVER (object);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (priv->modal)
gtk_popover_apply_modality (popover, FALSE);
if (priv->window)
{
g_signal_handlers_disconnect_by_data (priv->window, popover);
_gtk_window_remove_popover (priv->window, GTK_WIDGET (object));
}
priv->window = NULL;
if (priv->widget)
gtk_popover_update_relative_to (popover, NULL);
popover_unset_prev_focus (popover);
g_clear_object (&priv->default_widget);
if (priv->contents_widget)
{
GtkWidget *child = gtk_bin_get_child (GTK_BIN (popover));
if (child)
{
/* Parent is content_widget! */
gtk_widget_unparent (child);
_gtk_bin_set_child (GTK_BIN (popover), NULL);
}
gtk_widget_unparent (priv->contents_widget);
priv->contents_widget = NULL;
}
G_OBJECT_CLASS (gtk_popover_parent_class)->dispose (object);
}
static void
gtk_popover_realize (GtkWidget *widget)
{
GtkAllocation allocation;
GdkSurface *surface;
gtk_widget_get_surface_allocation (widget, &allocation);
/* We want to use subsurfaces for popovers, so they can extend outside
* the main window, but for that, we first need to have clean subsurface
* support that works with GSK.
*/
#if 0
if (GDK_IS_WAYLAND_DISPLAY (gtk_widget_get_display (widget)))
{
GtkWidget *toplevel = gtk_widget_get_toplevel (widget);
g_assert (GTK_IS_WINDOW (toplevel));
surface = gdk_wayland_surface_new_subsurface (gtk_widget_get_display (toplevel),
&allocation);
gdk_surface_set_transient_for (surface,
gtk_widget_get_surface (toplevel));
}
else
#endif
{
surface = gdk_surface_new_child (gtk_widget_get_parent_surface (widget),
&allocation);
}
gtk_widget_set_surface (widget, surface);
gtk_widget_register_surface (widget, surface);
GTK_WIDGET_CLASS (gtk_popover_parent_class)->realize (widget);
}
static void
window_active_changed (GtkWindow *window,
GParamSpec *pspec,
GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (!priv->modal ||
!gtk_widget_is_drawable (GTK_WIDGET (popover)))
return;
if (gtk_window_is_active (window))
{
/* Regain the grab when the window is focused */
GtkWidget *focus;
gtk_grab_add (GTK_WIDGET (popover));
focus = gtk_window_get_focus (window);
if (focus == NULL || !gtk_widget_is_ancestor (focus, GTK_WIDGET (popover)))
gtk_widget_grab_focus (GTK_WIDGET (popover));
if (priv->grab_notify_blocked)
g_signal_handler_unblock (priv->widget, priv->grab_notify_id);
priv->grab_notify_blocked = FALSE;
}
else
{
/* Temporarily remove the grab when unfocused */
g_signal_handler_block (priv->widget, priv->grab_notify_id);
gtk_grab_remove (GTK_WIDGET (popover));
priv->grab_notify_blocked = TRUE;
}
}
static void
window_set_focus (GtkWindow *window,
GtkWidget *widget,
GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (!priv->modal || !widget || !gtk_widget_is_drawable (GTK_WIDGET (popover)))
return;
widget = gtk_widget_get_ancestor (widget, GTK_TYPE_POPOVER);
while (widget != NULL)
{
if (widget == GTK_WIDGET (popover))
return;
widget = gtk_popover_get_relative_to (GTK_POPOVER (widget));
if (widget == NULL)
break;
widget = gtk_widget_get_ancestor (widget, GTK_TYPE_POPOVER);
}
popover_unset_prev_focus (popover);
gtk_widget_hide (GTK_WIDGET (popover));
}
static void
prev_focus_unmap_cb (GtkWidget *widget,
GtkPopover *popover)
{
popover_unset_prev_focus (popover);
}
static void
gtk_popover_apply_modality (GtkPopover *popover,
gboolean modal)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (!priv->window)
return;
if (modal)
{
GtkWidget *prev_focus;
prev_focus = gtk_window_get_focus (priv->window);
priv->prev_focus_widget = prev_focus;
if (priv->prev_focus_widget)
{
priv->prev_focus_unmap_id =
g_signal_connect (prev_focus, "unmap",
G_CALLBACK (prev_focus_unmap_cb), popover);
g_object_ref (prev_focus);
}
gtk_grab_add (GTK_WIDGET (popover));
gtk_window_set_focus (priv->window, NULL);
gtk_widget_grab_focus (GTK_WIDGET (popover));
g_signal_connect (priv->window, "notify::is-active",
G_CALLBACK (window_active_changed), popover);
g_signal_connect (priv->window, "set-focus",
G_CALLBACK (window_set_focus), popover);
}
else
{
g_signal_handlers_disconnect_by_data (priv->window, popover);
if (priv->prev_focus_widget == GTK_WIDGET (priv->window))
priv->prev_focus_unmap_id = 0;
gtk_grab_remove (GTK_WIDGET (popover));
/* Let prev_focus_widget regain focus */
if (priv->prev_focus_widget &&
gtk_widget_is_drawable (priv->prev_focus_widget))
{
if (GTK_IS_ENTRY (priv->prev_focus_widget))
gtk_entry_grab_focus_without_selecting (GTK_ENTRY (priv->prev_focus_widget));
else
gtk_widget_grab_focus (priv->prev_focus_widget);
}
else if (priv->window)
gtk_widget_grab_focus (GTK_WIDGET (priv->window));
popover_unset_prev_focus (popover);
}
}
static gboolean
show_animate_cb (GtkWidget *widget,
GdkFrameClock *frame_clock,
gpointer user_data)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
gdouble t;
if (priv->first_frame_skipped)
gtk_progress_tracker_advance_frame (&priv->tracker,
gdk_frame_clock_get_frame_time (frame_clock));
else
priv->first_frame_skipped = TRUE;
t = gtk_progress_tracker_get_ease_out_cubic (&priv->tracker, FALSE);
if (priv->state == STATE_SHOWING)
{
priv->transition_diff = TRANSITION_DIFF - (TRANSITION_DIFF * t);
gtk_widget_set_opacity (widget, t);
}
else if (priv->state == STATE_HIDING)
{
priv->transition_diff = -TRANSITION_DIFF * t;
gtk_widget_set_opacity (widget, 1.0 - t);
}
gtk_popover_update_position (popover);
gtk_widget_queue_allocate (GTK_WIDGET (priv->window));
if (gtk_progress_tracker_get_state (&priv->tracker) == GTK_PROGRESS_STATE_AFTER)
{
if (priv->state == STATE_SHOWING)
{
gtk_popover_set_state (popover, STATE_SHOWN);
if (!priv->visible)
gtk_popover_set_state (popover, STATE_HIDING);
}
else
{
gtk_widget_hide (widget);
}
priv->tick_id = 0;
return G_SOURCE_REMOVE;
}
else
return G_SOURCE_CONTINUE;
}
static void
gtk_popover_stop_transition (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (priv->tick_id != 0)
{
gtk_widget_remove_tick_callback (GTK_WIDGET (popover), priv->tick_id);
priv->tick_id = 0;
}
}
static void
gtk_popover_start_transition (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (priv->tick_id != 0)
return;
priv->first_frame_skipped = FALSE;
gtk_progress_tracker_start (&priv->tracker, TRANSITION_DURATION, 0, 1.0);
priv->tick_id = gtk_widget_add_tick_callback (GTK_WIDGET (popover),
show_animate_cb,
popover, NULL);
}
static void
gtk_popover_set_state (GtkPopover *popover,
guint state)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (!transitions_enabled (popover) ||
!gtk_widget_get_realized (GTK_WIDGET (popover)))
{
if (state == STATE_SHOWING)
state = STATE_SHOWN;
else if (state == STATE_HIDING)
state = STATE_HIDDEN;
}
priv->state = state;
if (state == STATE_SHOWING || state == STATE_HIDING)
gtk_popover_start_transition (popover);
else
{
gtk_popover_stop_transition (popover);
gtk_widget_set_visible (GTK_WIDGET (popover), state == STATE_SHOWN);
}
}
static void
gtk_popover_map (GtkWidget *widget)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (GTK_POPOVER (widget));
priv->prev_default = gtk_window_get_default_widget (priv->window);
if (priv->prev_default)
g_object_ref (priv->prev_default);
GTK_WIDGET_CLASS (gtk_popover_parent_class)->map (widget);
gdk_surface_show (gtk_widget_get_surface (widget));
gtk_popover_update_position (GTK_POPOVER (widget));
gtk_window_set_default (priv->window, priv->default_widget);
}
static void
gtk_popover_unmap (GtkWidget *widget)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (GTK_POPOVER (widget));
priv->button_pressed = FALSE;
gdk_surface_hide (gtk_widget_get_surface (widget));
GTK_WIDGET_CLASS (gtk_popover_parent_class)->unmap (widget);
if (gtk_window_get_default_widget (priv->window) == priv->default_widget)
gtk_window_set_default (priv->window, priv->prev_default);
g_clear_object (&priv->prev_default);
}
static GtkPositionType
get_effective_position (GtkPopover *popover,
GtkPositionType pos)
{
if (_gtk_widget_get_direction (GTK_WIDGET (popover)) == GTK_TEXT_DIR_RTL)
{
if (pos == GTK_POS_LEFT)
pos = GTK_POS_RIGHT;
else if (pos == GTK_POS_RIGHT)
pos = GTK_POS_LEFT;
}
return pos;
}
static void
get_margin (GtkWidget *widget,
GtkBorder *border)
{
GtkStyleContext *context;
context = gtk_widget_get_style_context (widget);
gtk_style_context_get_margin (context,
border);
}
static void
gtk_popover_get_gap_coords (GtkPopover *popover,
gint *initial_x_out,
gint *initial_y_out,
gint *tip_x_out,
gint *tip_y_out,
gint *final_x_out,
gint *final_y_out)
{
GtkWidget *widget = GTK_WIDGET (popover);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GdkRectangle rect = { 0 };
gint base, tip, tip_pos;
gint initial_x, initial_y;
gint tip_x, tip_y;
gint final_x, final_y;
GtkPositionType pos;
gint border_radius;
GtkStyleContext *context;
GtkBorder border;
int popover_width, popover_height;
gtk_popover_get_pointing_to (popover, &rect);
popover_width = gtk_widget_get_width (widget);
popover_height = gtk_widget_get_height (widget);
#ifdef GDK_WINDOWING_WAYLAND
if (GDK_IS_WAYLAND_DISPLAY (gtk_widget_get_display (widget)))
{
gint win_x, win_y;
gtk_widget_translate_coordinates (priv->widget, GTK_WIDGET (priv->window),
rect.x, rect.y, &rect.x, &rect.y);
gdk_surface_get_origin (gtk_widget_get_surface (GTK_WIDGET (popover)),
&win_x, &win_y);
rect.x -= win_x;
rect.y -= win_y;
}
else
#endif
gtk_widget_translate_coordinates (priv->widget, widget,
rect.x, rect.y, &rect.x, &rect.y);
context = gtk_widget_get_style_context (priv->contents_widget);
gtk_style_context_get_border (context, &border);
pos = get_effective_position (popover, priv->final_position);
gtk_style_context_get_border (context, &border);
gtk_style_context_get (context,
GTK_STYLE_PROPERTY_BORDER_RADIUS, &border_radius,
NULL);
if (pos == GTK_POS_BOTTOM || pos == GTK_POS_RIGHT)
{
tip = 0;
base = tip + TAIL_HEIGHT + border.top;
}
else if (pos == GTK_POS_TOP)
{
base = popover_height - border.bottom - TAIL_HEIGHT;
tip = base + TAIL_HEIGHT;
}
else if (pos == GTK_POS_LEFT)
{
base = popover_width - border.right - TAIL_HEIGHT;
tip = base + TAIL_HEIGHT;
}
else
g_assert_not_reached ();
if (POS_IS_VERTICAL (pos))
{
tip_pos = rect.x + (rect.width / 2);
initial_x = CLAMP (tip_pos - TAIL_GAP_WIDTH / 2,
border_radius,
popover_width - TAIL_GAP_WIDTH - border_radius);
initial_y = base;
tip_x = CLAMP (tip_pos, 0, popover_width);
tip_y = tip;
final_x = CLAMP (tip_pos + TAIL_GAP_WIDTH / 2,
border_radius + TAIL_GAP_WIDTH,
popover_width - border_radius);
final_y = base;
}
else
{
tip_pos = rect.y + (rect.height / 2);
initial_x = base;
initial_y = CLAMP (tip_pos - TAIL_GAP_WIDTH / 2,
border_radius,
popover_height - TAIL_GAP_WIDTH - border_radius);
tip_x = tip;
tip_y = CLAMP (tip_pos, 0, popover_height);
final_x = base;
final_y = CLAMP (tip_pos + TAIL_GAP_WIDTH / 2,
border_radius + TAIL_GAP_WIDTH,
popover_height - border_radius);
}
*initial_x_out = initial_x;
*initial_y_out = initial_y;
*tip_x_out = tip_x;
*tip_y_out = tip_y;
*final_x_out = final_x;
*final_y_out = final_y;
}
static void
gtk_popover_get_rect_for_size (GtkPopover *popover,
int popover_width,
int popover_height,
GdkRectangle *rect)
{
GtkWidget *widget = GTK_WIDGET (popover);
int x, y, w, h;
GtkBorder margin;
get_margin (widget, &margin);
x = 0;
y = 0;
w = popover_width;
h = popover_height;
x += MAX (TAIL_HEIGHT, margin.left);
y += MAX (TAIL_HEIGHT, margin.top);
w -= x + MAX (TAIL_HEIGHT, margin.right);
h -= y + MAX (TAIL_HEIGHT, margin.bottom);
rect->x = x;
rect->y = y;
rect->width = w;
rect->height = h;
}
static void
gtk_popover_get_rect_coords (GtkPopover *popover,
int *x_out,
int *y_out,
int *w_out,
int *h_out)
{
GtkWidget *widget = GTK_WIDGET (popover);
GdkRectangle rect;
GtkAllocation allocation;
gtk_widget_get_allocation (widget, &allocation);
gtk_popover_get_rect_for_size (popover, allocation.width, allocation.height, &rect);
*x_out = rect.x;
*y_out = rect.y;
*w_out = rect.width;
*h_out = rect.height;
}
static void
gtk_popover_apply_tail_path (GtkPopover *popover,
cairo_t *cr)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
gint initial_x, initial_y;
gint tip_x, tip_y;
gint final_x, final_y;
GtkStyleContext *context;
GtkBorder border;
if (!priv->widget)
return;
context = gtk_widget_get_style_context (priv->contents_widget);
gtk_style_context_get_border (context, &border);
cairo_set_line_width (cr, 1);
gtk_popover_get_gap_coords (popover,
&initial_x, &initial_y,
&tip_x, &tip_y,
&final_x, &final_y);
cairo_move_to (cr, initial_x, initial_y);
cairo_line_to (cr, tip_x, tip_y);
cairo_line_to (cr, final_x, final_y);
}
static void
gtk_popover_fill_border_path (GtkPopover *popover,
cairo_t *cr)
{
GtkWidget *widget = GTK_WIDGET (popover);
GtkAllocation allocation;
GtkStyleContext *context;
int x, y, w, h;
GskRoundedRect box;
context = gtk_widget_get_style_context (widget);
gtk_widget_get_allocation (widget, &allocation);
cairo_set_source_rgba (cr, 0, 0, 0, 1);
gtk_popover_apply_tail_path (popover, cr);
cairo_close_path (cr);
cairo_fill (cr);
gtk_popover_get_rect_coords (popover, &x, &y, &w, &h);
gtk_rounded_boxes_init_for_style (&box,
NULL, NULL,
gtk_style_context_lookup_style (context),
x, y, w, h);
gsk_rounded_rect_path (&box, cr);
cairo_fill (cr);
}
static void
gtk_popover_update_shape (GtkPopover *popover)
{
GtkWidget *widget = GTK_WIDGET (popover);
cairo_surface_t *cairo_surface;
cairo_region_t *region;
GdkSurface *surface;
cairo_t *cr;
#ifdef GDK_WINDOWING_WAYLAND
if (GDK_IS_WAYLAND_DISPLAY (gtk_widget_get_display (widget)))
return;
#endif
surface = gtk_widget_get_surface (widget);
cairo_surface =
gdk_surface_create_similar_surface (surface,
CAIRO_CONTENT_COLOR_ALPHA,
gdk_surface_get_width (surface),
gdk_surface_get_height (surface));
cr = cairo_create (cairo_surface);
gtk_popover_fill_border_path (popover, cr);
cairo_destroy (cr);
region = gdk_cairo_region_create_from_surface (cairo_surface);
cairo_surface_destroy (cairo_surface);
gtk_widget_input_shape_combine_region (widget, region);
cairo_region_destroy (region);
gdk_surface_set_child_input_shapes (gtk_widget_get_surface (widget));
}
static void
_gtk_popover_update_child_visible (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkWidget *widget = GTK_WIDGET (popover);
GdkRectangle rect;
GtkAllocation allocation;
GtkWidget *parent;
if (!priv->parent_scrollable)
{
gtk_widget_set_child_visible (widget, TRUE);
return;
}
parent = gtk_widget_get_parent (GTK_WIDGET (priv->parent_scrollable));
rect = priv->pointing_to;
gtk_widget_translate_coordinates (priv->widget, parent,
rect.x, rect.y, &rect.x, &rect.y);
gtk_widget_get_allocation (GTK_WIDGET (parent), &allocation);
if (rect.x + rect.width < 0 || rect.x > allocation.width ||
rect.y + rect.height < 0 || rect.y > allocation.height)
gtk_widget_set_child_visible (widget, FALSE);
else
gtk_widget_set_child_visible (widget, TRUE);
}
static GtkPositionType
opposite_position (GtkPositionType pos)
{
switch (pos)
{
default:
case GTK_POS_LEFT: return GTK_POS_RIGHT;
case GTK_POS_RIGHT: return GTK_POS_LEFT;
case GTK_POS_TOP: return GTK_POS_BOTTOM;
case GTK_POS_BOTTOM: return GTK_POS_TOP;
}
}
void
gtk_popover_update_position (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkWidget *widget = GTK_WIDGET (popover);
GtkAllocation window_alloc;
GtkBorder window_shadow;
GdkRectangle rect = { 0 };
GtkRequisition req;
GtkPositionType pos;
gint overshoot[4];
gint i, j;
gint best;
if (!priv->window)
return;
gtk_widget_get_preferred_size (widget, NULL, &req);
gtk_widget_get_allocation (GTK_WIDGET (priv->window), &window_alloc);
_gtk_window_get_shadow_width (priv->window, &window_shadow);
priv->final_position = priv->preferred_position;
gtk_popover_get_pointing_to (popover, &rect);
gtk_widget_translate_coordinates (priv->widget, GTK_WIDGET (priv->window),
rect.x, rect.y, &rect.x, &rect.y);
pos = get_effective_position (popover, priv->preferred_position);
overshoot[GTK_POS_TOP] = req.height - rect.y + window_shadow.top;
overshoot[GTK_POS_BOTTOM] = rect.y + rect.height + req.height - window_alloc.height
+ window_shadow.bottom;
overshoot[GTK_POS_LEFT] = req.width - rect.x + window_shadow.left;
overshoot[GTK_POS_RIGHT] = rect.x + rect.width + req.width - window_alloc.width
+ window_shadow.right;
#ifdef GDK_WINDOWING_WAYLAND
if (GDK_IS_WAYLAND_DISPLAY (gtk_widget_get_display (widget)) &&
priv->constraint == GTK_POPOVER_CONSTRAINT_NONE)
{
priv->final_position = priv->preferred_position;
}
else
#endif
if (overshoot[pos] <= 0)
{
priv->final_position = priv->preferred_position;
}
else if (overshoot[opposite_position (pos)] <= 0)
{
priv->final_position = opposite_position (priv->preferred_position);
}
else
{
best = G_MAXINT;
pos = 0;
for (i = 0; i < 4; i++)
{
j = get_effective_position (popover, i);
if (overshoot[j] < best)
{
pos = i;
best = overshoot[j];
}
}
priv->final_position = pos;
}
switch (priv->final_position)
{
case GTK_POS_TOP:
rect.y += priv->transition_diff;
break;
case GTK_POS_BOTTOM:
rect.y -= priv->transition_diff;
break;
case GTK_POS_LEFT:
rect.x += priv->transition_diff;
break;
case GTK_POS_RIGHT:
rect.x -= priv->transition_diff;
break;
default:
break;
}
_gtk_window_set_popover_position (priv->window, widget,
priv->final_position, &rect);
if (priv->final_position != priv->current_position)
{
if (gtk_widget_is_drawable (widget))
gtk_popover_update_shape (popover);
priv->current_position = priv->final_position;
}
_gtk_popover_update_child_visible (popover);
}
GtkWidget *
gtk_popover_get_contents_widget (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
return priv->contents_widget;
}
static void
gtk_popover_snapshot (GtkWidget *widget,
GtkSnapshot *snapshot)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkStyleContext *context;
GtkBorder border;
cairo_t *cr;
/* Draw the child first so we can draw the arrow (partially) over it */
gtk_widget_snapshot_child (widget, priv->contents_widget, snapshot);
cr = gtk_snapshot_append_cairo (snapshot,
&GRAPHENE_RECT_INIT (
0, 0,
gtk_widget_get_width (widget),
gtk_widget_get_height (widget)
));
/* Clip to the arrow shape */
cairo_save (cr);
gtk_popover_apply_tail_path (popover, cr);
cairo_clip (cr);
context = gtk_widget_get_style_context (widget);
gtk_style_context_save_to_node (context, priv->arrow_node);
gtk_style_context_get_border (context, &border);
/* Render the arrow background */
gtk_render_background (context, cr,
0, 0,
gtk_widget_get_width (widget),
gtk_widget_get_height (widget));
/* Render the border of the arrow tip */
if (border.bottom > 0)
{
GdkRGBA border_color;
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
gtk_style_context_get_border_color (context, &border_color);
G_GNUC_END_IGNORE_DEPRECATIONS
gtk_popover_apply_tail_path (popover, cr);
gdk_cairo_set_source_rgba (cr, &border_color);
cairo_set_line_width (cr, border.bottom + 1);
cairo_stroke (cr);
}
cairo_restore (cr);
/* We're done */
cairo_destroy (cr);
gtk_style_context_restore (context);
}
static gint
get_border_radius (GtkWidget *widget)
{
GtkStyleContext *context;
gint border_radius;
context = gtk_widget_get_style_context (widget);
gtk_style_context_get (context,
GTK_STYLE_PROPERTY_BORDER_RADIUS, &border_radius,
NULL);
return border_radius;
}
static gint
get_minimal_size (GtkPopover *popover,
GtkOrientation orientation)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkPositionType pos;
gint minimal_size;
minimal_size = 2 * get_border_radius (GTK_WIDGET (popover));
pos = get_effective_position (popover, priv->preferred_position);
if ((orientation == GTK_ORIENTATION_HORIZONTAL && POS_IS_VERTICAL (pos)) ||
(orientation == GTK_ORIENTATION_VERTICAL && !POS_IS_VERTICAL (pos)))
minimal_size += TAIL_GAP_WIDTH;
return minimal_size;
}
static void
gtk_popover_measure (GtkWidget *widget,
GtkOrientation orientation,
int for_size,
int *minimum,
int *natural,
int *minimum_baseline,
int *natural_baseline)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget));
int minimal_size;
*minimum = 0;
*natural = 0;
if (child != NULL)
{
if (for_size >= 0)
for_size -= TAIL_HEIGHT;
gtk_widget_measure (priv->contents_widget, orientation, for_size, minimum, natural, NULL, NULL);
}
minimal_size = get_minimal_size (popover, orientation);
*minimum = MAX (*minimum, minimal_size);
*natural = MAX (*natural, minimal_size);
*minimum += TAIL_HEIGHT;
*natural += TAIL_HEIGHT;
}
static void
gtk_popover_size_allocate (GtkWidget *widget,
const GtkAllocation *allocation,
int baseline)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkAllocation child_alloc = *allocation;
/* Note that we in measure() we add TAIL_HEIGHT in both directions, regardless
* of the popovers position. This is to ensure that we get enough space
* even priv->current_position changes between measure and size-allocate.
*/
child_alloc.height -= TAIL_HEIGHT;
child_alloc.width -= TAIL_HEIGHT;
switch (priv->current_position)
{
case GTK_POS_TOP:
child_alloc.x += TAIL_HEIGHT / 2;
break;
case GTK_POS_BOTTOM:
child_alloc.x += TAIL_HEIGHT / 2;
child_alloc.y += TAIL_HEIGHT;
break;
case GTK_POS_LEFT:
child_alloc.y += TAIL_HEIGHT / 2;
break;
case GTK_POS_RIGHT:
child_alloc.x += TAIL_HEIGHT;
child_alloc.y += TAIL_HEIGHT / 2;
break;
default:
break;
}
gtk_widget_size_allocate (priv->contents_widget, &child_alloc, -1);
if (gtk_widget_get_realized (widget))
{
GtkAllocation a;
gtk_widget_get_surface_allocation (widget, &a);
gdk_surface_move_resize (gtk_widget_get_surface (widget),
a.x, a.y, a.width, a.height);
gtk_popover_update_shape (popover);
}
}
static void
gtk_popover_grab_focus (GtkWidget *widget)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (GTK_POPOVER (widget));
GtkWidget *child;
if (!priv->visible)
return;
/* Focus the first natural child */
child = gtk_bin_get_child (GTK_BIN (widget));
if (child)
gtk_widget_child_focus (child, GTK_DIR_TAB_FORWARD);
}
static gboolean
gtk_popover_focus (GtkWidget *widget,
GtkDirectionType direction)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (!priv->visible)
return FALSE;
if (!GTK_WIDGET_CLASS (gtk_popover_parent_class)->focus (widget, direction))
{
GtkWidget *focus;
focus = gtk_window_get_focus (priv->window);
focus = gtk_widget_get_parent (focus);
/* Unset focus child through children, so it is next stepped from
* scratch.
*/
while (focus && focus != widget)
{
gtk_widget_set_focus_child (focus, NULL);
focus = gtk_widget_get_parent (focus);
}
return gtk_widget_child_focus (gtk_bin_get_child (GTK_BIN (widget)),
direction);
}
return TRUE;
}
static void
gtk_popover_show (GtkWidget *widget)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (GTK_POPOVER (widget));
if (priv->window)
_gtk_window_raise_popover (priv->window, widget);
priv->visible = TRUE;
GTK_WIDGET_CLASS (gtk_popover_parent_class)->show (widget);
if (priv->modal)
gtk_popover_apply_modality (GTK_POPOVER (widget), TRUE);
priv->state = STATE_SHOWN;
if (gtk_widget_get_realized (widget))
gdk_surface_input_shape_combine_region (gtk_widget_get_surface (widget),
NULL, 0, 0);
}
static void
gtk_popover_hide (GtkWidget *widget)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (GTK_POPOVER (widget));
gtk_popover_hide_internal (GTK_POPOVER (widget));
gtk_popover_stop_transition (GTK_POPOVER (widget));
priv->state = STATE_HIDDEN;
priv->transition_diff = 0;
gtk_progress_tracker_finish (&priv->tracker);
gtk_widget_set_opacity (widget, 1.0);
GTK_WIDGET_CLASS (gtk_popover_parent_class)->hide (widget);
}
static void
gtk_popover_add (GtkContainer *container,
GtkWidget *child)
{
GtkPopover *popover = GTK_POPOVER (container);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
_gtk_bin_set_child (GTK_BIN (popover), child);
gtk_widget_set_parent (child, priv->contents_widget);
}
static void
gtk_popover_remove (GtkContainer *container,
GtkWidget *child)
{
GtkPopover *popover = GTK_POPOVER (container);
_gtk_bin_set_child (GTK_BIN (popover), NULL);
gtk_widget_unparent (child);
}
static void
gtk_popover_state_flags_changed (GtkWidget *widget,
GtkStateFlags previous_state)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkStateFlags state;
state = gtk_widget_get_state_flags (widget);
gtk_css_node_set_state (priv->arrow_node, state);
GTK_WIDGET_CLASS (gtk_popover_parent_class)->state_flags_changed (widget, previous_state);
}
static void
gtk_popover_class_init (GtkPopoverClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
object_class->set_property = gtk_popover_set_property;
object_class->get_property = gtk_popover_get_property;
object_class->finalize = gtk_popover_finalize;
object_class->dispose = gtk_popover_dispose;
widget_class->realize = gtk_popover_realize;
widget_class->map = gtk_popover_map;
widget_class->unmap = gtk_popover_unmap;
widget_class->measure = gtk_popover_measure;
widget_class->size_allocate = gtk_popover_size_allocate;
widget_class->snapshot = gtk_popover_snapshot;
widget_class->grab_focus = gtk_popover_grab_focus;
widget_class->focus = gtk_popover_focus;
widget_class->show = gtk_popover_show;
widget_class->hide = gtk_popover_hide;
widget_class->state_flags_changed = gtk_popover_state_flags_changed;
container_class->add = gtk_popover_add;
container_class->remove = gtk_popover_remove;
/**
* GtkPopover:relative-to:
*
* Sets the attached widget.
*/
properties[PROP_RELATIVE_TO] =
g_param_spec_object ("relative-to",
P_("Relative to"),
P_("Widget the bubble window points to"),
GTK_TYPE_WIDGET,
GTK_PARAM_READWRITE);
/**
* GtkPopover:pointing-to:
*
* Marks a specific rectangle to be pointed.
*/
properties[PROP_POINTING_TO] =
g_param_spec_boxed ("pointing-to",
P_("Pointing to"),
P_("Rectangle the bubble window points to"),
GDK_TYPE_RECTANGLE,
GTK_PARAM_READWRITE);
/**
* GtkPopover:position
*
* Sets the preferred position of the popover.
*/
properties[PROP_POSITION] =
g_param_spec_enum ("position",
P_("Position"),
P_("Position to place the bubble window"),
GTK_TYPE_POSITION_TYPE, GTK_POS_TOP,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkPopover:modal
*
* Sets whether the popover is modal (so other elements in the window do not
* receive input while the popover is visible).
*/
properties[PROP_MODAL] =
g_param_spec_boolean ("modal",
P_("Modal"),
P_("Whether the popover is modal"),
TRUE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkPopover:constrain-to:
*
* Sets a constraint for the popover position.
*/
properties[PROP_CONSTRAIN_TO] =
g_param_spec_enum ("constrain-to",
P_("Constraint"),
P_("Constraint for the popover position"),
GTK_TYPE_POPOVER_CONSTRAINT, GTK_POPOVER_CONSTRAINT_WINDOW,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
g_object_class_install_properties (object_class, NUM_PROPERTIES, properties);
signals[CLOSED] =
g_signal_new (I_("closed"),
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkPopoverClass, closed),
NULL, NULL, NULL,
G_TYPE_NONE, 0);
quark_widget_popovers = g_quark_from_static_string ("gtk-quark-widget-popovers");
gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_POPOVER_ACCESSIBLE);
gtk_widget_class_set_css_name (widget_class, I_("popover"));
}
static void
gtk_popover_update_scrollable (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkScrollable *scrollable;
scrollable = GTK_SCROLLABLE (gtk_widget_get_ancestor (priv->widget,
GTK_TYPE_SCROLLABLE));
gtk_popover_set_scrollable_full (popover, scrollable);
}
static void
_gtk_popover_parent_hierarchy_changed (GtkWidget *widget,
GtkWidget *previous_toplevel,
GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkWindow *new_window;
new_window = GTK_WINDOW (gtk_widget_get_ancestor (widget, GTK_TYPE_WINDOW));
if (priv->window == new_window)
return;
g_object_ref (popover);
if (gtk_widget_has_grab (GTK_WIDGET (popover)))
gtk_popover_apply_modality (popover, FALSE);
if (priv->window)
_gtk_window_remove_popover (priv->window, GTK_WIDGET (popover));
if (priv->parent_scrollable)
gtk_popover_set_scrollable_full (popover, NULL);
priv->window = new_window;
if (new_window)
{
_gtk_window_add_popover (new_window, GTK_WIDGET (popover), priv->widget, TRUE);
gtk_popover_update_scrollable (popover);
gtk_popover_update_position (popover);
}
if (gtk_widget_is_visible (GTK_WIDGET (popover)))
gtk_widget_queue_resize (GTK_WIDGET (popover));
g_object_unref (popover);
}
static void
_popover_propagate_state (GtkPopover *popover,
GtkStateFlags state,
GtkStateFlags old_state,
GtkStateFlags flag)
{
if ((state & flag) != (old_state & flag))
{
if ((state & flag) == flag)
gtk_widget_set_state_flags (GTK_WIDGET (popover), flag, FALSE);
else
gtk_widget_unset_state_flags (GTK_WIDGET (popover), flag);
}
}
static void
_gtk_popover_parent_state_changed (GtkWidget *widget,
GtkStateFlags old_state,
GtkPopover *popover)
{
guint state;
state = gtk_widget_get_state_flags (widget);
_popover_propagate_state (popover, state, old_state,
GTK_STATE_FLAG_INSENSITIVE);
_popover_propagate_state (popover, state, old_state,
GTK_STATE_FLAG_BACKDROP);
}
static void
_gtk_popover_parent_grab_notify (GtkWidget *widget,
gboolean was_shadowed,
GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (priv->modal &&
gtk_widget_is_visible (GTK_WIDGET (popover)) &&
!gtk_widget_has_grab (GTK_WIDGET (popover)))
{
GtkWidget *grab_widget;
grab_widget = gtk_grab_get_current ();
if (!grab_widget || !GTK_IS_POPOVER (grab_widget))
gtk_popover_popdown (popover);
}
}
static void
_gtk_popover_parent_unmap (GtkWidget *widget,
GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (priv->state == STATE_SHOWING)
priv->visible = FALSE;
else if (priv->state == STATE_SHOWN)
gtk_popover_set_state (popover, STATE_HIDING);
}
static void
gtk_popover_parent_size_allocate (GtkWidget *widget,
const GtkAllocation *allocation,
int baseline,
GtkPopover *popover)
{
gtk_popover_update_position (popover);
}
static void
_unmanage_popover (GObject *object)
{
gtk_popover_update_relative_to (GTK_POPOVER (object), NULL);
g_object_unref (object);
}
static void
widget_manage_popover (GtkWidget *widget,
GtkPopover *popover)
{
GHashTable *popovers;
popovers = g_object_get_qdata (G_OBJECT (widget), quark_widget_popovers);
if (G_UNLIKELY (!popovers))
{
popovers = g_hash_table_new_full (NULL, NULL,
(GDestroyNotify) _unmanage_popover, NULL);
g_object_set_qdata_full (G_OBJECT (widget),
quark_widget_popovers, popovers,
(GDestroyNotify) g_hash_table_unref);
}
g_hash_table_add (popovers, g_object_ref_sink (popover));
}
static void
widget_unmanage_popover (GtkWidget *widget,
GtkPopover *popover)
{
GHashTable *popovers;
popovers = g_object_get_qdata (G_OBJECT (widget), quark_widget_popovers);
if (G_UNLIKELY (!popovers))
return;
g_hash_table_remove (popovers, popover);
}
static void
adjustment_changed_cb (GtkAdjustment *adjustment,
GtkPopover *popover)
{
gtk_popover_update_position (popover);
}
static void
_gtk_popover_set_scrollable (GtkPopover *popover,
GtkScrollable *scrollable)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (priv->parent_scrollable)
{
if (priv->vadj)
{
g_signal_handlers_disconnect_by_data (priv->vadj, popover);
g_object_unref (priv->vadj);
priv->vadj = NULL;
}
if (priv->hadj)
{
g_signal_handlers_disconnect_by_data (priv->hadj, popover);
g_object_unref (priv->hadj);
priv->hadj = NULL;
}
g_object_unref (priv->parent_scrollable);
}
priv->parent_scrollable = scrollable;
if (scrollable)
{
g_object_ref (scrollable);
priv->vadj = gtk_scrollable_get_vadjustment (scrollable);
priv->hadj = gtk_scrollable_get_hadjustment (scrollable);
if (priv->vadj)
{
g_object_ref (priv->vadj);
g_signal_connect (priv->vadj, "changed",
G_CALLBACK (adjustment_changed_cb), popover);
g_signal_connect (priv->vadj, "value-changed",
G_CALLBACK (adjustment_changed_cb), popover);
}
if (priv->hadj)
{
g_object_ref (priv->hadj);
g_signal_connect (priv->hadj, "changed",
G_CALLBACK (adjustment_changed_cb), popover);
g_signal_connect (priv->hadj, "value-changed",
G_CALLBACK (adjustment_changed_cb), popover);
}
}
}
static void
scrollable_notify_cb (GObject *object,
GParamSpec *pspec,
GtkPopover *popover)
{
if (pspec->value_type == GTK_TYPE_ADJUSTMENT)
_gtk_popover_set_scrollable (popover, GTK_SCROLLABLE (object));
}
static void
gtk_popover_set_scrollable_full (GtkPopover *popover,
GtkScrollable *scrollable)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (priv->scrollable_notify_id != 0 &&
g_signal_handler_is_connected (priv->parent_scrollable, priv->scrollable_notify_id))
{
g_signal_handler_disconnect (priv->parent_scrollable, priv->scrollable_notify_id);
priv->scrollable_notify_id = 0;
}
_gtk_popover_set_scrollable (popover, scrollable);
if (scrollable)
{
priv->scrollable_notify_id =
g_signal_connect (priv->parent_scrollable, "notify",
G_CALLBACK (scrollable_notify_cb), popover);
}
}
static void
gtk_popover_update_relative_to (GtkPopover *popover,
GtkWidget *relative_to)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (priv->widget == relative_to)
return;
g_object_ref (popover);
if (priv->window)
{
_gtk_window_remove_popover (priv->window, GTK_WIDGET (popover));
priv->window = NULL;
}
popover_unset_prev_focus (popover);
if (priv->widget)
{
if (g_signal_handler_is_connected (priv->widget, priv->hierarchy_changed_id))
g_signal_handler_disconnect (priv->widget, priv->hierarchy_changed_id);
if (g_signal_handler_is_connected (priv->widget, priv->size_allocate_id))
g_signal_handler_disconnect (priv->widget, priv->size_allocate_id);
if (g_signal_handler_is_connected (priv->widget, priv->unmap_id))
g_signal_handler_disconnect (priv->widget, priv->unmap_id);
if (g_signal_handler_is_connected (priv->widget, priv->state_changed_id))
g_signal_handler_disconnect (priv->widget, priv->state_changed_id);
if (g_signal_handler_is_connected (priv->widget, priv->grab_notify_id))
g_signal_handler_disconnect (priv->widget, priv->grab_notify_id);
widget_unmanage_popover (priv->widget, popover);
}
if (priv->parent_scrollable)
gtk_popover_set_scrollable_full (popover, NULL);
priv->widget = relative_to;
g_object_notify_by_pspec (G_OBJECT (popover), properties[PROP_RELATIVE_TO]);
if (priv->widget)
{
priv->window =
GTK_WINDOW (gtk_widget_get_ancestor (priv->widget, GTK_TYPE_WINDOW));
priv->hierarchy_changed_id =
g_signal_connect (priv->widget, "hierarchy-changed",
G_CALLBACK (_gtk_popover_parent_hierarchy_changed),
popover);
priv->size_allocate_id =
g_signal_connect (priv->widget, "size-allocate",
G_CALLBACK (gtk_popover_parent_size_allocate),
popover);
priv->unmap_id =
g_signal_connect (priv->widget, "unmap",
G_CALLBACK (_gtk_popover_parent_unmap),
popover);
priv->state_changed_id =
g_signal_connect (priv->widget, "state-flags-changed",
G_CALLBACK (_gtk_popover_parent_state_changed),
popover);
priv->grab_notify_id =
g_signal_connect (priv->widget, "grab-notify",
G_CALLBACK (_gtk_popover_parent_grab_notify),
popover);
/* Give ownership of the popover to widget */
widget_manage_popover (priv->widget, popover);
}
if (priv->window)
_gtk_window_add_popover (priv->window, GTK_WIDGET (popover), priv->widget, TRUE);
if (priv->widget)
gtk_popover_update_scrollable (popover);
_gtk_widget_update_parent_muxer (GTK_WIDGET (popover));
g_object_unref (popover);
}
static void
gtk_popover_update_pointing_to (GtkPopover *popover,
const GdkRectangle *pointing_to)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (pointing_to)
{
priv->pointing_to = *pointing_to;
priv->has_pointing_to = TRUE;
}
else
priv->has_pointing_to = FALSE;
g_object_notify_by_pspec (G_OBJECT (popover), properties[PROP_POINTING_TO]);
}
static void
gtk_popover_update_preferred_position (GtkPopover *popover,
GtkPositionType position)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (priv->preferred_position == position)
return;
priv->preferred_position = position;
g_object_notify_by_pspec (G_OBJECT (popover), properties[PROP_POSITION]);
}
/**
* gtk_popover_new:
* @relative_to: (allow-none): #GtkWidget the popover is related to
*
* Creates a new popover to point to @relative_to
*
* Returns: a new #GtkPopover
**/
GtkWidget *
gtk_popover_new (GtkWidget *relative_to)
{
g_return_val_if_fail (relative_to == NULL || GTK_IS_WIDGET (relative_to), NULL);
return g_object_new (GTK_TYPE_POPOVER,
"relative-to", relative_to,
NULL);
}
/**
* gtk_popover_set_relative_to:
* @popover: a #GtkPopover
* @relative_to: (allow-none): a #GtkWidget
*
* Sets a new widget to be attached to @popover. If @popover is
* visible, the position will be updated.
*
* Note: the ownership of popovers is always given to their @relative_to
* widget, so if @relative_to is set to %NULL on an attached @popover, it
* will be detached from its previous widget, and consequently destroyed
* unless extra references are kept.
**/
void
gtk_popover_set_relative_to (GtkPopover *popover,
GtkWidget *relative_to)
{
g_return_if_fail (GTK_IS_POPOVER (popover));
g_return_if_fail (relative_to == NULL || GTK_IS_WIDGET (relative_to));
gtk_popover_update_relative_to (popover, relative_to);
if (relative_to)
gtk_popover_update_position (popover);
}
/**
* gtk_popover_get_relative_to:
* @popover: a #GtkPopover
*
* Returns the widget @popover is currently attached to
*
* Returns: (transfer none): a #GtkWidget
**/
GtkWidget *
gtk_popover_get_relative_to (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_val_if_fail (GTK_IS_POPOVER (popover), NULL);
return priv->widget;
}
/**
* gtk_popover_set_pointing_to:
* @popover: a #GtkPopover
* @rect: rectangle to point to
*
* Sets the rectangle that @popover will point to, in the
* coordinate space of the widget @popover is attached to,
* see gtk_popover_set_relative_to().
**/
void
gtk_popover_set_pointing_to (GtkPopover *popover,
const GdkRectangle *rect)
{
g_return_if_fail (GTK_IS_POPOVER (popover));
g_return_if_fail (rect != NULL);
gtk_popover_update_pointing_to (popover, rect);
gtk_popover_update_position (popover);
}
/**
* gtk_popover_get_pointing_to:
* @popover: a #GtkPopover
* @rect: (out): location to store the rectangle
*
* If a rectangle to point to has been set, this function will
* return %TRUE and fill in @rect with such rectangle, otherwise
* it will return %FALSE and fill in @rect with the attached
* widget coordinates.
*
* Returns: %TRUE if a rectangle to point to was set.
**/
gboolean
gtk_popover_get_pointing_to (GtkPopover *popover,
GdkRectangle *rect)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_val_if_fail (GTK_IS_POPOVER (popover), FALSE);
g_return_val_if_fail (rect != NULL, FALSE);
if (priv->has_pointing_to)
*rect = priv->pointing_to;
else if (priv->widget)
{
graphene_rect_t r;
gtk_widget_compute_bounds (priv->widget, priv->widget, &r);
rect->x = floorf (r.origin.x);
rect->y = floorf (r.origin.y);
rect->width = ceilf (r.size.width);
rect->height = ceilf (r.size.height);
}
return priv->has_pointing_to;
}
/**
* gtk_popover_set_position:
* @popover: a #GtkPopover
* @position: preferred popover position
*
* Sets the preferred position for @popover to appear. If the @popover
* is currently visible, it will be immediately updated.
*
* This preference will be respected where possible, although
* on lack of space (eg. if close to the window edges), the
* #GtkPopover may choose to appear on the opposite side
**/
void
gtk_popover_set_position (GtkPopover *popover,
GtkPositionType position)
{
g_return_if_fail (GTK_IS_POPOVER (popover));
g_return_if_fail (position >= GTK_POS_LEFT && position <= GTK_POS_BOTTOM);
gtk_popover_update_preferred_position (popover, position);
gtk_popover_update_position (popover);
}
/**
* gtk_popover_get_position:
* @popover: a #GtkPopover
*
* Returns the preferred position of @popover.
*
* Returns: The preferred position.
**/
GtkPositionType
gtk_popover_get_position (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_val_if_fail (GTK_IS_POPOVER (popover), GTK_POS_TOP);
return priv->preferred_position;
}
/**
* gtk_popover_set_modal:
* @popover: a #GtkPopover
* @modal: #TRUE to make popover claim all input within the toplevel
*
* Sets whether @popover is modal, a modal popover will grab all input
* within the toplevel and grab the keyboard focus on it when being
* displayed. Clicking outside the popover area or pressing Esc will
* dismiss the popover and ungrab input.
**/
void
gtk_popover_set_modal (GtkPopover *popover,
gboolean modal)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_if_fail (GTK_IS_POPOVER (popover));
modal = modal != FALSE;
if (priv->modal == modal)
return;
priv->modal = modal;
if (gtk_widget_is_visible (GTK_WIDGET (popover)))
gtk_popover_apply_modality (popover, priv->modal);
g_object_notify_by_pspec (G_OBJECT (popover), properties[PROP_MODAL]);
}
/**
* gtk_popover_get_modal:
* @popover: a #GtkPopover
*
* Returns whether the popover is modal, see gtk_popover_set_modal to
* see the implications of this.
*
* Returns: #TRUE if @popover is modal
**/
gboolean
gtk_popover_get_modal (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_val_if_fail (GTK_IS_POPOVER (popover), FALSE);
return priv->modal;
}
static void
back_to_main (GtkWidget *popover)
{
GtkWidget *stack;
stack = gtk_bin_get_child (GTK_BIN (popover));
gtk_stack_set_visible_child_name (GTK_STACK (stack), "main");
}
/**
* gtk_popover_bind_model:
* @popover: a #GtkPopover
* @model: (allow-none): the #GMenuModel to bind to or %NULL to remove
* binding
* @action_namespace: (allow-none): the namespace for actions in @model
*
* Establishes a binding between a #GtkPopover and a #GMenuModel.
*
* The contents of @popover are removed and then refilled with menu items
* according to @model. When @model changes, @popover is updated.
* Calling this function twice on @popover with different @model will
* cause the first binding to be replaced with a binding to the new
* model. If @model is %NULL then any previous binding is undone and
* all children are removed.
*
* If @action_namespace is non-%NULL then the effect is as if all
* actions mentioned in the @model have their names prefixed with the
* namespace, plus a dot. For example, if the action “quit” is
* mentioned and @action_namespace is “app” then the effective action
* name is “app.quit”.
*
* This function uses #GtkActionable to define the action name and
* target values on the created menu items. If you want to use an
* action group other than “app” and “win”, or if you want to use a
* #GtkMenuShell outside of a #GtkApplicationWindow, then you will need
* to attach your own action group to the widget hierarchy using
* gtk_widget_insert_action_group(). As an example, if you created a
* group with a “quit” action and inserted it with the name “mygroup”
* then you would use the action name “mygroup.quit” in your
* #GMenuModel.
*/
void
gtk_popover_bind_model (GtkPopover *popover,
GMenuModel *model,
const gchar *action_namespace)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkWidget *child;
GtkWidget *stack;
GtkStyleContext *style_context;
g_return_if_fail (GTK_IS_POPOVER (popover));
g_return_if_fail (model == NULL || G_IS_MENU_MODEL (model));
child = gtk_bin_get_child (GTK_BIN (popover));
if (child)
gtk_widget_destroy (child);
style_context = gtk_widget_get_style_context (priv->contents_widget);
if (model)
{
stack = gtk_stack_new ();
gtk_stack_set_vhomogeneous (GTK_STACK (stack), FALSE);
gtk_stack_set_transition_type (GTK_STACK (stack), GTK_STACK_TRANSITION_TYPE_SLIDE_LEFT_RIGHT);
gtk_stack_set_interpolate_size (GTK_STACK (stack), TRUE);
gtk_container_add (GTK_CONTAINER (popover), stack);
gtk_menu_section_box_new_toplevel (GTK_STACK (stack),
model,
action_namespace,
popover);
gtk_stack_set_visible_child_name (GTK_STACK (stack), "main");
g_signal_connect (popover, "unmap", G_CALLBACK (back_to_main), NULL);
g_signal_connect (popover, "map", G_CALLBACK (back_to_main), NULL);
gtk_style_context_add_class (style_context, GTK_STYLE_CLASS_MENU);
}
else
{
gtk_style_context_remove_class (style_context, GTK_STYLE_CLASS_MENU);
}
}
/**
* gtk_popover_new_from_model:
* @relative_to: (allow-none): #GtkWidget the popover is related to
* @model: a #GMenuModel
*
* Creates a #GtkPopover and populates it according to
* @model. The popover is pointed to the @relative_to widget.
*
* The created buttons are connected to actions found in the
* #GtkApplicationWindow to which the popover belongs - typically
* by means of being attached to a widget that is contained within
* the #GtkApplicationWindows widget hierarchy.
*
* Actions can also be added using gtk_widget_insert_action_group()
* on the menus attach widget or on any of its parent widgets.
*
* Returns: the new #GtkPopover
*/
GtkWidget *
gtk_popover_new_from_model (GtkWidget *relative_to,
GMenuModel *model)
{
GtkWidget *popover;
g_return_val_if_fail (relative_to == NULL || GTK_IS_WIDGET (relative_to), NULL);
g_return_val_if_fail (G_IS_MENU_MODEL (model), NULL);
popover = gtk_popover_new (relative_to);
gtk_popover_bind_model (GTK_POPOVER (popover), model, NULL);
return popover;
}
/**
* gtk_popover_set_default_widget:
* @popover: a #GtkPopover
* @widget: (allow-none): the new default widget, or %NULL
*
* Sets the widget that should be set as default widget while
* the popover is shown (see gtk_window_set_default()). #GtkPopover
* remembers the previous default widget and reestablishes it
* when the popover is dismissed.
*/
void
gtk_popover_set_default_widget (GtkPopover *popover,
GtkWidget *widget)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_if_fail (GTK_IS_POPOVER (popover));
g_return_if_fail (widget == NULL || gtk_widget_get_can_default (widget));
if (priv->default_widget == widget)
return;
if (priv->default_widget)
g_object_unref (priv->default_widget);
priv->default_widget = widget;
if (priv->default_widget)
g_object_ref (priv->default_widget);
if (gtk_widget_get_mapped (GTK_WIDGET (popover)))
gtk_window_set_default (priv->window, priv->default_widget);
}
/**
* gtk_popover_get_default_widget:
* @popover: a #GtkPopover
*
* Gets the widget that should be set as the default while
* the popover is shown.
*
* Returns: (nullable) (transfer none): the default widget,
* or %NULL if there is none
*/
GtkWidget *
gtk_popover_get_default_widget (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_val_if_fail (GTK_IS_POPOVER (popover), NULL);
return priv->default_widget;
}
/**
* gtk_popover_set_constrain_to:
* @popover: a #GtkPopover
* @constraint: the new constraint
*
* Sets a constraint for positioning this popover.
*
* Note that not all platforms support placing popovers freely,
* and may already impose constraints.
*/
void
gtk_popover_set_constrain_to (GtkPopover *popover,
GtkPopoverConstraint constraint)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_if_fail (GTK_IS_POPOVER (popover));
if (priv->constraint == constraint)
return;
priv->constraint = constraint;
gtk_popover_update_position (popover);
g_object_notify_by_pspec (G_OBJECT (popover), properties[PROP_CONSTRAIN_TO]);
}
/**
* gtk_popover_get_constrain_to:
* @popover: a #GtkPopover
*
* Returns the constraint for placing this popover.
* See gtk_popover_set_constrain_to().
*
* Returns: the constraint for placing this popover.
*/
GtkPopoverConstraint
gtk_popover_get_constrain_to (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_val_if_fail (GTK_IS_POPOVER (popover), GTK_POPOVER_CONSTRAINT_WINDOW);
return priv->constraint;
}
/**
* gtk_popover_popup:
* @popover: a #GtkPopover
*
* Pops @popover up. This is different than a gtk_widget_show() call
* in that it shows the popover with a transition. If you want to show
* the popover without a transition, use gtk_widget_show().
*/
void
gtk_popover_popup (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_if_fail (GTK_IS_POPOVER (popover));
if (priv->state == STATE_SHOWING ||
priv->state == STATE_SHOWN)
return;
gtk_widget_show (GTK_WIDGET (popover));
if (transitions_enabled (popover))
gtk_popover_set_state (popover, STATE_SHOWING);
}
/**
* gtk_popover_popdown:
* @popover: a #GtkPopover
*
* Pops @popover down.This is different than a gtk_widget_hide() call
* in that it shows the popover with a transition. If you want to hide
* the popover without a transition, use gtk_widget_hide().
*/
void
gtk_popover_popdown (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_if_fail (GTK_IS_POPOVER (popover));
if (priv->state == STATE_HIDING ||
priv->state == STATE_HIDDEN)
return;
if (!transitions_enabled (popover))
gtk_widget_hide (GTK_WIDGET (popover));
else
gtk_popover_set_state (popover, STATE_HIDING);
gtk_popover_hide_internal (popover);
}
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