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gtk2/gtk/gtkpopover.c
Cameron White 0cb3555a65
Fix a couple incorrect annotations for optional parameters 
The 'optional' annotation should be used in these cases rather than 'nullable'.
NULL can provided to ignore these output parameters, but the function is
not setting the output parameter to NULL.
2023-02-09 22:46:43 -05:00

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/* GTK - The GIMP Toolkit
* Copyright (C) 2019 Red Hat, Inc.
*
* Authors:
* - Matthias Clasen <mclasen@redhat.com>
*
* 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/>.
*/
/**
* GtkPopover:
*
* `GtkPopover` is a bubble-like context popup.
*
* ![An example GtkPopover](popover.png)
*
* It is primarily meant to provide context-dependent information
* or options. Popovers are attached to a parent widget. By default,
* they point to the whole widget area, although this behavior can be
* changed with [method@Gtk.Popover.set_pointing_to].
*
* The position of a popover relative to the widget it is attached to
* can also be changed with [method@Gtk.Popover.set_position]
*
* By default, `GtkPopover` performs a 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 Escape key being pressed). If no such modal behavior is desired
* on a popover, [method@Gtk.Popover.set_autohide] may be called on it to
* tweak its behavior.
*
* ## GtkPopover as menu replacement
*
* `GtkPopover` is often used to replace menus. The best was to do this
* is to use the [class@Gtk.PopoverMenu] subclass which supports being
* populated from a `GMenuModel` with [ctor@Gtk.PopoverMenu.new_from_model].
*
* ```xml
* <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
*
* ```
* popover[.menu]
* ├── arrow
* ╰── contents.background
* ╰── <child>
* ```
*
* The contents child node always gets the .background style class
* and the popover itself gets the .menu style class if the popover
* is menu-like (i.e. `GtkPopoverMenu`).
*
* 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. The visible part of the popover can have
* a shadow. To specify it in CSS, set the box-shadow of the contents node.
*
* 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 and shadow, 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 "gtkpopovermenuprivate.h"
#include "gtknative.h"
#include "gtkwidgetprivate.h"
#include "gtkeventcontrollerkey.h"
#include "gtkeventcontrollerfocus.h"
#include "gtkbinlayout.h"
#include "gtkenums.h"
#include "gtktypebuiltins.h"
#include "gtkpopovercontentprivate.h"
#include "gtkprivate.h"
#include "gtkmain.h"
#include "gtkstack.h"
#include "gtkmenusectionboxprivate.h"
#include "gdk/gdkeventsprivate.h"
#include "gtkpointerfocusprivate.h"
#include "gtkcsscolorvalueprivate.h"
#include "gtksnapshot.h"
#include "gtkrenderbackgroundprivate.h"
#include "gtkshortcutmanager.h"
#include "gtkbuildable.h"
#include "gtktooltipprivate.h"
#include "gtkcssboxesimplprivate.h"
#include "gtknativeprivate.h"
#include "gtkroundedboxprivate.h"
#include "gsk/gskroundedrectprivate.h"
#include "gtkcssshadowvalueprivate.h"
#include "gdk/gdksurfaceprivate.h"
#define MNEMONICS_DELAY 300 /* ms */
#define TAIL_GAP_WIDTH 24
#define TAIL_HEIGHT 12
#define POS_IS_VERTICAL(p) ((p) == GTK_POS_TOP || (p) == GTK_POS_BOTTOM)
typedef struct {
GdkSurface *surface;
GskRenderer *renderer;
GtkWidget *default_widget;
GdkRectangle pointing_to;
gboolean has_pointing_to;
guint surface_transform_changed_cb;
GtkPositionType position;
gboolean autohide;
gboolean has_arrow;
gboolean mnemonics_visible;
gboolean disable_auto_mnemonics;
gboolean cascade_popdown;
int x_offset;
int y_offset;
guint mnemonics_display_timeout_id;
GtkWidget *child;
GtkWidget *contents_widget;
GtkCssNode *arrow_node;
GskRenderNode *arrow_render_node;
GdkPopupLayout *layout;
GdkRectangle final_rect;
GtkPositionType final_position;
} GtkPopoverPrivate;
enum {
CLOSED,
ACTIVATE_DEFAULT,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };
enum {
PROP_POINTING_TO = 1,
PROP_POSITION,
PROP_AUTOHIDE,
PROP_DEFAULT_WIDGET,
PROP_HAS_ARROW,
PROP_MNEMONICS_VISIBLE,
PROP_CHILD,
PROP_CASCADE_POPDOWN,
NUM_PROPERTIES
};
static GParamSpec *properties[NUM_PROPERTIES] = { NULL };
static void gtk_popover_buildable_init (GtkBuildableIface *iface);
static void gtk_popover_shortcut_manager_interface_init (GtkShortcutManagerInterface *iface);
static void gtk_popover_native_interface_init (GtkNativeInterface *iface);
G_DEFINE_TYPE_WITH_CODE (GtkPopover, gtk_popover, GTK_TYPE_WIDGET,
G_ADD_PRIVATE (GtkPopover)
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
gtk_popover_buildable_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_SHORTCUT_MANAGER,
gtk_popover_shortcut_manager_interface_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_NATIVE,
gtk_popover_native_interface_init))
static GdkSurface *
gtk_popover_native_get_surface (GtkNative *native)
{
GtkPopover *popover = GTK_POPOVER (native);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
return priv->surface;
}
static GskRenderer *
gtk_popover_native_get_renderer (GtkNative *native)
{
GtkPopover *popover = GTK_POPOVER (native);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
return priv->renderer;
}
static void
gtk_popover_native_get_surface_transform (GtkNative *native,
double *x,
double *y)
{
GtkCssBoxes css_boxes;
const graphene_rect_t *margin_rect;
gtk_css_boxes_init (&css_boxes, GTK_WIDGET (native));
margin_rect = gtk_css_boxes_get_margin_rect (&css_boxes);
*x = - margin_rect->origin.x;
*y = - margin_rect->origin.y;
}
static gboolean
is_gravity_facing_north (GdkGravity gravity)
{
switch (gravity)
{
case GDK_GRAVITY_NORTH_EAST:
case GDK_GRAVITY_NORTH:
case GDK_GRAVITY_NORTH_WEST:
case GDK_GRAVITY_STATIC:
return TRUE;
case GDK_GRAVITY_SOUTH_WEST:
case GDK_GRAVITY_WEST:
case GDK_GRAVITY_SOUTH_EAST:
case GDK_GRAVITY_EAST:
case GDK_GRAVITY_CENTER:
case GDK_GRAVITY_SOUTH:
return FALSE;
default:
g_assert_not_reached ();
}
}
static gboolean
is_gravity_facing_south (GdkGravity gravity)
{
switch (gravity)
{
case GDK_GRAVITY_SOUTH_WEST:
case GDK_GRAVITY_SOUTH_EAST:
case GDK_GRAVITY_SOUTH:
return TRUE;
case GDK_GRAVITY_NORTH_EAST:
case GDK_GRAVITY_NORTH:
case GDK_GRAVITY_NORTH_WEST:
case GDK_GRAVITY_STATIC:
case GDK_GRAVITY_WEST:
case GDK_GRAVITY_EAST:
case GDK_GRAVITY_CENTER:
return FALSE;
default:
g_assert_not_reached ();
}
}
static gboolean
is_gravity_facing_west (GdkGravity gravity)
{
switch (gravity)
{
case GDK_GRAVITY_NORTH_WEST:
case GDK_GRAVITY_STATIC:
case GDK_GRAVITY_SOUTH_WEST:
case GDK_GRAVITY_WEST:
return TRUE;
case GDK_GRAVITY_NORTH_EAST:
case GDK_GRAVITY_SOUTH_EAST:
case GDK_GRAVITY_EAST:
case GDK_GRAVITY_NORTH:
case GDK_GRAVITY_CENTER:
case GDK_GRAVITY_SOUTH:
return FALSE;
default:
g_assert_not_reached ();
}
}
static gboolean
is_gravity_facing_east (GdkGravity gravity)
{
switch (gravity)
{
case GDK_GRAVITY_NORTH_EAST:
case GDK_GRAVITY_SOUTH_EAST:
case GDK_GRAVITY_EAST:
return TRUE;
case GDK_GRAVITY_NORTH_WEST:
case GDK_GRAVITY_STATIC:
case GDK_GRAVITY_SOUTH_WEST:
case GDK_GRAVITY_WEST:
case GDK_GRAVITY_NORTH:
case GDK_GRAVITY_CENTER:
case GDK_GRAVITY_SOUTH:
return FALSE;
default:
g_assert_not_reached ();
}
}
static gboolean
did_flip_horizontally (GdkGravity original_gravity,
GdkGravity final_gravity)
{
g_return_val_if_fail (original_gravity, FALSE);
g_return_val_if_fail (final_gravity, FALSE);
if (is_gravity_facing_east (original_gravity) &&
is_gravity_facing_west (final_gravity))
return TRUE;
if (is_gravity_facing_west (original_gravity) &&
is_gravity_facing_east (final_gravity))
return TRUE;
return FALSE;
}
static gboolean
did_flip_vertically (GdkGravity original_gravity,
GdkGravity final_gravity)
{
g_return_val_if_fail (original_gravity, FALSE);
g_return_val_if_fail (final_gravity, FALSE);
if (is_gravity_facing_north (original_gravity) &&
is_gravity_facing_south (final_gravity))
return TRUE;
if (is_gravity_facing_south (original_gravity) &&
is_gravity_facing_north (final_gravity))
return TRUE;
return FALSE;
}
static void
update_popover_layout (GtkPopover *popover,
GdkPopupLayout *layout,
int width,
int height)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GdkRectangle final_rect;
gboolean flipped_x;
gboolean flipped_y;
GdkPopup *popup = GDK_POPUP (priv->surface);
GtkPositionType position;
g_clear_pointer (&priv->layout, gdk_popup_layout_unref);
priv->layout = layout;
final_rect = (GdkRectangle) {
.x = gdk_popup_get_position_x (GDK_POPUP (priv->surface)),
.y = gdk_popup_get_position_y (GDK_POPUP (priv->surface)),
.width = gdk_surface_get_width (priv->surface),
.height = gdk_surface_get_height (priv->surface),
};
flipped_x =
did_flip_horizontally (gdk_popup_layout_get_rect_anchor (layout),
gdk_popup_get_rect_anchor (popup)) &&
did_flip_horizontally (gdk_popup_layout_get_surface_anchor (layout),
gdk_popup_get_surface_anchor (popup));
flipped_y =
did_flip_vertically (gdk_popup_layout_get_rect_anchor (layout),
gdk_popup_get_rect_anchor (popup)) &&
did_flip_vertically (gdk_popup_layout_get_surface_anchor (layout),
gdk_popup_get_surface_anchor (popup));
priv->final_rect = final_rect;
position = priv->final_position;
switch (priv->position)
{
case GTK_POS_LEFT:
priv->final_position = flipped_x ? GTK_POS_RIGHT : GTK_POS_LEFT;
break;
case GTK_POS_RIGHT:
priv->final_position = flipped_x ? GTK_POS_LEFT : GTK_POS_RIGHT;
break;
case GTK_POS_TOP:
priv->final_position = flipped_y ? GTK_POS_BOTTOM : GTK_POS_TOP;
break;
case GTK_POS_BOTTOM:
priv->final_position = flipped_y ? GTK_POS_TOP : GTK_POS_BOTTOM;
break;
default:
g_assert_not_reached ();
break;
}
if (priv->final_position != position ||
priv->final_rect.width != width ||
priv->final_rect.height != height)
{
gtk_widget_queue_allocate (GTK_WIDGET (popover));
g_clear_pointer (&priv->arrow_render_node, gsk_render_node_unref);
}
gtk_widget_queue_draw (GTK_WIDGET (popover));
}
static GdkPopupLayout *
create_popup_layout (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GdkRectangle rect;
GdkGravity parent_anchor;
GdkGravity surface_anchor;
GdkAnchorHints anchor_hints;
GdkPopupLayout *layout;
GtkWidget *parent;
GtkCssStyle *style;
GtkBorder shadow_width;
parent = gtk_widget_get_parent (GTK_WIDGET (popover));
gtk_widget_get_surface_allocation (parent, &rect);
if (priv->has_pointing_to)
{
rect.x += priv->pointing_to.x;
rect.y += priv->pointing_to.y;
rect.width = priv->pointing_to.width;
rect.height = priv->pointing_to.height;
}
style = gtk_css_node_get_style (gtk_widget_get_css_node (GTK_WIDGET (priv->contents_widget)));
gtk_css_shadow_value_get_extents (style->background->box_shadow, &shadow_width);
switch (priv->position)
{
case GTK_POS_LEFT:
switch (gtk_widget_get_valign (GTK_WIDGET (popover)))
{
case GTK_ALIGN_START:
parent_anchor = GDK_GRAVITY_NORTH_WEST;
surface_anchor = GDK_GRAVITY_NORTH_EAST;
break;
case GTK_ALIGN_END:
parent_anchor = GDK_GRAVITY_SOUTH_WEST;
surface_anchor = GDK_GRAVITY_SOUTH_EAST;
break;
case GTK_ALIGN_FILL:
case GTK_ALIGN_CENTER:
case GTK_ALIGN_BASELINE:
default:
parent_anchor = GDK_GRAVITY_WEST;
surface_anchor = GDK_GRAVITY_EAST;
break;
}
anchor_hints = GDK_ANCHOR_FLIP_X | GDK_ANCHOR_SLIDE_Y;
break;
case GTK_POS_RIGHT:
switch (gtk_widget_get_valign (GTK_WIDGET (popover)))
{
case GTK_ALIGN_START:
parent_anchor = GDK_GRAVITY_NORTH_EAST;
surface_anchor = GDK_GRAVITY_NORTH_WEST;
break;
case GTK_ALIGN_END:
parent_anchor = GDK_GRAVITY_SOUTH_EAST;
surface_anchor = GDK_GRAVITY_SOUTH_WEST;
break;
case GTK_ALIGN_FILL:
case GTK_ALIGN_CENTER:
case GTK_ALIGN_BASELINE:
default:
parent_anchor = GDK_GRAVITY_EAST;
surface_anchor = GDK_GRAVITY_WEST;
break;
}
anchor_hints = GDK_ANCHOR_FLIP_X | GDK_ANCHOR_SLIDE_Y;
break;
case GTK_POS_TOP:
switch (gtk_widget_get_halign (GTK_WIDGET (popover)))
{
case GTK_ALIGN_START:
parent_anchor = GDK_GRAVITY_NORTH_WEST;
surface_anchor = GDK_GRAVITY_SOUTH_WEST;
break;
case GTK_ALIGN_END:
parent_anchor = GDK_GRAVITY_NORTH_EAST;
surface_anchor = GDK_GRAVITY_SOUTH_EAST;
break;
case GTK_ALIGN_FILL:
case GTK_ALIGN_CENTER:
case GTK_ALIGN_BASELINE:
default:
parent_anchor = GDK_GRAVITY_NORTH;
surface_anchor = GDK_GRAVITY_SOUTH;
break;
}
anchor_hints = GDK_ANCHOR_FLIP_Y | GDK_ANCHOR_SLIDE_X;
break;
case GTK_POS_BOTTOM:
switch (gtk_widget_get_halign (GTK_WIDGET (popover)))
{
case GTK_ALIGN_START:
parent_anchor = GDK_GRAVITY_SOUTH_WEST;
surface_anchor = GDK_GRAVITY_NORTH_WEST;
break;
case GTK_ALIGN_END:
parent_anchor = GDK_GRAVITY_SOUTH_EAST;
surface_anchor = GDK_GRAVITY_NORTH_EAST;
break;
case GTK_ALIGN_FILL:
case GTK_ALIGN_CENTER:
case GTK_ALIGN_BASELINE:
default:
parent_anchor = GDK_GRAVITY_SOUTH;
surface_anchor = GDK_GRAVITY_NORTH;
break;
}
anchor_hints = GDK_ANCHOR_FLIP_Y | GDK_ANCHOR_SLIDE_X;
break;
default:
g_assert_not_reached ();
}
anchor_hints |= GDK_ANCHOR_RESIZE;
layout = gdk_popup_layout_new (&rect, parent_anchor, surface_anchor);
gdk_popup_layout_set_anchor_hints (layout, anchor_hints);
gdk_popup_layout_set_shadow_width (layout,
shadow_width.left,
shadow_width.right,
shadow_width.top,
shadow_width.bottom);
if (priv->x_offset || priv->y_offset)
gdk_popup_layout_set_offset (layout, priv->x_offset, priv->y_offset);
return layout;
}
static gboolean
present_popup (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkRequisition nat;
GdkPopupLayout *layout;
layout = create_popup_layout (popover);
gtk_widget_get_preferred_size (GTK_WIDGET (popover), NULL, &nat);
if (gdk_popup_present (GDK_POPUP (priv->surface), nat.width, nat.height, layout))
{
update_popover_layout (popover, layout, nat.width, nat.height);
return TRUE;
}
return FALSE;
}
/**
* gtk_popover_present:
* @popover: a `GtkPopover`
*
* Allocate a size for the `GtkPopover`.
*
* This function needs to be called in size-allocate by widgets
* who have a `GtkPopover` as child. When using a layout manager,
* this is happening automatically.
*
* To make a popover appear on screen, use [method@Gtk.Popover.popup].
*/
void
gtk_popover_present (GtkPopover *popover)
{
GtkWidget *widget = GTK_WIDGET (popover);
if (!_gtk_widget_get_alloc_needed (widget))
gtk_widget_ensure_allocate (widget);
else if (gtk_widget_get_visible (widget))
present_popup (popover);
}
static void
maybe_request_motion_event (GtkPopover *popover)
{
GtkWidget *widget = GTK_WIDGET (popover);
GtkRoot *root = gtk_widget_get_root (widget);
GdkSeat *seat;
GdkDevice *device;
GtkWidget *focus;
GdkSurface *focus_surface;
seat = gdk_display_get_default_seat (gtk_widget_get_display (widget));
if (!seat)
return;
device = gdk_seat_get_pointer (seat);
focus = gtk_window_lookup_pointer_focus_widget (GTK_WINDOW (root),
device, NULL);
if (!focus)
return;
if (!gtk_widget_is_ancestor (focus, GTK_WIDGET (popover)))
return;
focus_surface = gtk_native_get_surface (gtk_widget_get_native (focus));
gdk_surface_request_motion (focus_surface);
}
static void
gtk_popover_native_layout (GtkNative *native,
int width,
int height)
{
GtkPopover *popover = GTK_POPOVER (native);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkWidget *widget = GTK_WIDGET (popover);
update_popover_layout (popover, gdk_popup_layout_ref (priv->layout), width, height);
if (gtk_widget_needs_allocate (widget))
{
gtk_widget_allocate (widget, width, height, -1, NULL);
/* This fake motion event is needed for getting up to date pointer focus
* and coordinates when the pointer didn't move but the layout changed
* within the popover.
*/
maybe_request_motion_event (popover);
}
else
{
gtk_widget_ensure_allocate (widget);
}
}
static gboolean
gtk_popover_has_mnemonic_modifier_pressed (GtkPopover *popover)
{
GList *seats, *s;
gboolean retval = FALSE;
seats = gdk_display_list_seats (gtk_widget_get_display (GTK_WIDGET (popover)));
for (s = seats; s; s = s->next)
{
GdkDevice *dev = gdk_seat_get_keyboard (s->data);
GdkModifierType mask;
mask = gdk_device_get_modifier_state (dev);
if ((mask & gtk_accelerator_get_default_mod_mask ()) == GDK_ALT_MASK)
{
retval = TRUE;
break;
}
}
g_list_free (seats);
return retval;
}
static gboolean
schedule_mnemonics_visible_cb (gpointer data)
{
GtkPopover *popover = data;
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
priv->mnemonics_display_timeout_id = 0;
gtk_popover_set_mnemonics_visible (popover, TRUE);
return G_SOURCE_REMOVE;
}
static void
gtk_popover_schedule_mnemonics_visible (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (priv->mnemonics_display_timeout_id)
return;
priv->mnemonics_display_timeout_id =
g_timeout_add (MNEMONICS_DELAY, schedule_mnemonics_visible_cb, popover);
gdk_source_set_static_name_by_id (priv->mnemonics_display_timeout_id, "[gtk] popover_schedule_mnemonics_visible_cb");
}
static void
gtk_popover_focus_in (GtkWidget *widget)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (priv->disable_auto_mnemonics)
return;
if (gtk_widget_get_visible (widget))
{
if (gtk_popover_has_mnemonic_modifier_pressed (popover))
gtk_popover_schedule_mnemonics_visible (popover);
}
}
static void
gtk_popover_focus_out (GtkWidget *widget)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (priv->disable_auto_mnemonics)
return;
gtk_popover_set_mnemonics_visible (popover, FALSE);
}
static void
update_mnemonics_visible (GtkPopover *popover,
guint keyval,
GdkModifierType state,
gboolean visible)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (priv->disable_auto_mnemonics)
return;
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_popover_schedule_mnemonics_visible (popover);
else
gtk_popover_set_mnemonics_visible (popover, FALSE);
}
}
static gboolean
gtk_popover_key_pressed (GtkWidget *widget,
guint keyval,
guint keycode,
GdkModifierType state)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkWindow *root;
if (keyval == GDK_KEY_Escape)
{
gtk_popover_popdown (popover);
return TRUE;
}
root = GTK_WINDOW (gtk_widget_get_root (GTK_WIDGET (popover)));
_gtk_window_update_focus_visible (root, keyval, state, TRUE);
update_mnemonics_visible (popover, keyval, state, TRUE);
return FALSE;
}
static gboolean
gtk_popover_key_released (GtkWidget *widget,
guint keyval,
guint keycode,
GdkModifierType state)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkWindow *root;
root = GTK_WINDOW (gtk_widget_get_root (GTK_WIDGET (popover)));
_gtk_window_update_focus_visible (root, keyval, state, FALSE);
update_mnemonics_visible (popover, keyval, state, FALSE);
return FALSE;
}
static void
surface_mapped_changed (GtkWidget *widget)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
gtk_widget_set_visible (widget, gdk_surface_get_mapped (priv->surface));
}
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;
}
static void
gtk_popover_activate_default (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkWidget *focus_widget;
focus_widget = gtk_window_get_focus (GTK_WINDOW (gtk_widget_get_root (GTK_WIDGET (popover))));
if (!gtk_widget_is_ancestor (focus_widget, GTK_WIDGET (popover)))
focus_widget = NULL;
if (priv->default_widget && gtk_widget_is_sensitive (priv->default_widget) &&
(!focus_widget || !gtk_widget_get_receives_default (focus_widget)
))
gtk_widget_activate (priv->default_widget);
else if (focus_widget && gtk_widget_is_sensitive (focus_widget))
gtk_widget_activate (focus_widget);
}
static void
activate_default_cb (GSimpleAction *action,
GVariant *parameter,
gpointer data)
{
gtk_popover_activate_default (GTK_POPOVER (data));
}
static void
add_actions (GtkPopover *popover)
{
GActionEntry entries[] = {
{ "activate", activate_default_cb, NULL, NULL, NULL },
};
GActionGroup *actions;
actions = G_ACTION_GROUP (g_simple_action_group_new ());
g_action_map_add_action_entries (G_ACTION_MAP (actions),
entries, G_N_ELEMENTS (entries),
popover);
gtk_widget_insert_action_group (GTK_WIDGET (popover), "default", actions);
g_object_unref (actions);
}
static void
node_style_changed_cb (GtkCssNode *node,
GtkCssStyleChange *change,
GtkWidget *widget)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (GTK_POPOVER (widget));
g_clear_pointer (&priv->arrow_render_node, gsk_render_node_unref);
if (gtk_css_style_change_affects (change, GTK_CSS_AFFECTS_SIZE))
gtk_widget_queue_resize (widget);
else
gtk_widget_queue_draw (widget);
}
static void
gtk_popover_init (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkWidget *widget = GTK_WIDGET (popover);
GtkEventController *controller;
priv->position = GTK_POS_BOTTOM;
priv->final_position = GTK_POS_BOTTOM;
priv->autohide = TRUE;
priv->has_arrow = TRUE;
priv->cascade_popdown = FALSE;
controller = gtk_event_controller_key_new ();
g_signal_connect_swapped (controller, "key-pressed", G_CALLBACK (gtk_popover_key_pressed), popover);
g_signal_connect_swapped (controller, "key-released", G_CALLBACK (gtk_popover_key_released), popover);
gtk_widget_add_controller (GTK_WIDGET (popover), controller);
controller = gtk_event_controller_focus_new ();
g_signal_connect_swapped (controller, "enter", G_CALLBACK (gtk_popover_focus_in), popover);
g_signal_connect_swapped (controller, "leave", G_CALLBACK (gtk_popover_focus_out), popover);
gtk_widget_add_controller (widget, controller);
priv->arrow_node = gtk_css_node_new ();
gtk_css_node_set_name (priv->arrow_node, g_quark_from_static_string ("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_popover_content_new ();
gtk_widget_set_layout_manager (priv->contents_widget, gtk_bin_layout_new ());
gtk_widget_set_parent (priv->contents_widget, GTK_WIDGET (popover));
gtk_widget_set_overflow (priv->contents_widget, GTK_OVERFLOW_HIDDEN);
gtk_widget_add_css_class (widget, "background");
add_actions (popover);
}
static void
gtk_popover_realize (GtkWidget *widget)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GdkSurface *parent_surface;
GtkWidget *parent;
parent = gtk_widget_get_parent (widget);
parent_surface = gtk_native_get_surface (gtk_widget_get_native (parent));
priv->surface = gdk_surface_new_popup (parent_surface, priv->autohide);
gdk_surface_set_widget (priv->surface, widget);
g_signal_connect_swapped (priv->surface, "notify::mapped", G_CALLBACK (surface_mapped_changed), widget);
g_signal_connect (priv->surface, "render", G_CALLBACK (surface_render), widget);
g_signal_connect (priv->surface, "event", G_CALLBACK (surface_event), widget);
GTK_WIDGET_CLASS (gtk_popover_parent_class)->realize (widget);
priv->renderer = gsk_renderer_new_for_surface (priv->surface);
gtk_native_realize (GTK_NATIVE (popover));
gtk_native_update_opaque_region (GTK_NATIVE (popover), priv->contents_widget, TRUE, TRUE, 0);
}
static void
gtk_popover_unrealize (GtkWidget *widget)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
gtk_native_unrealize (GTK_NATIVE (popover));
GTK_WIDGET_CLASS (gtk_popover_parent_class)->unrealize (widget);
gsk_renderer_unrealize (priv->renderer);
g_clear_object (&priv->renderer);
g_signal_handlers_disconnect_by_func (priv->surface, surface_mapped_changed, widget);
g_signal_handlers_disconnect_by_func (priv->surface, surface_render, widget);
g_signal_handlers_disconnect_by_func (priv->surface, surface_event, widget);
gdk_surface_set_widget (priv->surface, NULL);
gdk_surface_destroy (priv->surface);
g_clear_object (&priv->surface);
}
static gboolean
gtk_popover_focus (GtkWidget *widget,
GtkDirectionType direction)
{
if (!gtk_widget_get_visible (widget))
return FALSE;
/* This code initially comes from gtkpopovermenu.c */
if (gtk_widget_get_first_child (widget) == NULL)
{
/* Empty popover, so nothing to Tab through. */
return FALSE;
}
else
{
/* Move focus normally, but when nothing can be focused in this direction then we cycle around. */
if (gtk_widget_focus_move (widget, direction))
return TRUE;
if (gtk_popover_get_autohide (GTK_POPOVER (widget)))
{
GtkWidget *p = gtk_root_get_focus (gtk_widget_get_root (widget));
/* In the case where the popover doesn't have any focusable child (like
* the GtkTreePopover for combo boxes) then the focus will end up out of
* the popover, hence creating an infinite loop below. To avoid this, just
* say we had focus and stop here.
*/
if (!gtk_widget_is_ancestor (p, widget) && p != widget)
return TRUE;
/* Cycle around with (Shift+)Tab */
if (direction == GTK_DIR_TAB_FORWARD || direction == GTK_DIR_TAB_BACKWARD)
{
for (;
p != widget;
p = gtk_widget_get_parent (p))
{
/* Unfocus everything in the popover. */
gtk_widget_set_focus_child (p, NULL);
}
}
/* Focus again from scratch */
gtk_widget_focus_move (widget, direction);
return TRUE;
}
else
{
return FALSE;
}
}
}
static void
gtk_popover_show (GtkWidget *widget)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
_gtk_widget_set_visible_flag (widget, TRUE);
gtk_widget_realize (widget);
if (!present_popup (popover))
return;
gtk_widget_map (widget);
if (priv->autohide)
{
if (!gtk_widget_get_focus_child (widget))
gtk_widget_child_focus (widget, GTK_DIR_TAB_FORWARD);
gtk_grab_add (widget);
}
}
static void
gtk_popover_hide (GtkWidget *widget)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (priv->autohide)
gtk_grab_remove (widget);
gtk_popover_set_mnemonics_visible (GTK_POPOVER (widget), FALSE);
_gtk_widget_set_visible_flag (widget, FALSE);
gtk_widget_unmap (widget);
g_signal_emit (widget, signals[CLOSED], 0);
}
static void
unset_surface_transform_changed_cb (gpointer data)
{
GtkPopover *popover = data;
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
priv->surface_transform_changed_cb = 0;
}
static gboolean
surface_transform_changed_cb (GtkWidget *widget,
const graphene_matrix_t *transform,
gpointer user_data)
{
GtkPopover *popover = user_data;
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (priv->surface && gdk_surface_get_mapped (priv->surface))
present_popup (popover);
return G_SOURCE_CONTINUE;
}
static void
gtk_popover_map (GtkWidget *widget)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkWidget *parent;
present_popup (popover);
parent = gtk_widget_get_parent (widget);
priv->surface_transform_changed_cb =
gtk_widget_add_surface_transform_changed_callback (parent,
surface_transform_changed_cb,
popover,
unset_surface_transform_changed_cb);
GTK_WIDGET_CLASS (gtk_popover_parent_class)->map (widget);
}
static void
gtk_popover_unmap (GtkWidget *widget)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkWidget *parent;
parent = gtk_widget_get_parent (widget);
gtk_widget_remove_surface_transform_changed_callback (parent,
priv->surface_transform_changed_cb);
priv->surface_transform_changed_cb = 0;
GTK_WIDGET_CLASS (gtk_popover_parent_class)->unmap (widget);
gdk_surface_hide (priv->surface);
}
static void
gtk_popover_dispose (GObject *object)
{
GtkPopover *popover = GTK_POPOVER (object);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_clear_object (&priv->default_widget);
g_clear_pointer (&priv->contents_widget, gtk_widget_unparent);
g_clear_pointer (&priv->arrow_render_node, gsk_render_node_unref);
G_OBJECT_CLASS (gtk_popover_parent_class)->dispose (object);
}
static void
gtk_popover_finalize (GObject *object)
{
GtkPopover *popover = GTK_POPOVER (object);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_clear_pointer (&priv->layout, gdk_popup_layout_unref);
if (priv->mnemonics_display_timeout_id)
{
g_source_remove (priv->mnemonics_display_timeout_id);
priv->mnemonics_display_timeout_id = 0;
}
G_OBJECT_CLASS (gtk_popover_parent_class)->finalize (object);
}
static void
gtk_popover_get_gap_coords (GtkPopover *popover,
int *initial_x_out,
int *initial_y_out,
int *tip_x_out,
int *tip_y_out,
int *final_x_out,
int *final_y_out)
{
GtkWidget *widget = GTK_WIDGET (popover);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GdkRectangle rect = { 0 };
int base, tip, tip_pos;
int initial_x, initial_y;
int tip_x, tip_y;
int final_x, final_y;
GtkPositionType pos;
int border_top, border_right, border_bottom;
int border_radius;
int popover_width, popover_height;
GtkCssStyle *style;
GtkWidget *parent;
GtkBorder shadow_width;
popover_width = gtk_widget_get_allocated_width (widget);
popover_height = gtk_widget_get_allocated_height (widget);
parent = gtk_widget_get_parent (widget);
gtk_widget_get_surface_allocation (parent, &rect);
if (priv->has_pointing_to)
{
rect.x += priv->pointing_to.x;
rect.y += priv->pointing_to.y;
rect.width = priv->pointing_to.width;
rect.height = priv->pointing_to.height;
}
rect.x -= priv->final_rect.x;
rect.y -= priv->final_rect.y;
pos = priv->final_position;
style = gtk_css_node_get_style (gtk_widget_get_css_node (priv->contents_widget));
border_radius = _gtk_css_number_value_get (style->border->border_top_left_radius, 100);
border_top = _gtk_css_number_value_get (style->border->border_top_width, 100);
border_right = _gtk_css_number_value_get (style->border->border_right_width, 100);
border_bottom = _gtk_css_number_value_get (style->border->border_bottom_width, 100);
gtk_css_shadow_value_get_extents (style->background->box_shadow, &shadow_width);
if (pos == GTK_POS_BOTTOM)
{
tip = shadow_width.top;
base = tip + TAIL_HEIGHT + border_top;
}
else if (pos == GTK_POS_RIGHT)
{
tip = shadow_width.left;
base = tip + TAIL_HEIGHT + border_top;
}
else if (pos == GTK_POS_TOP)
{
tip = popover_height - shadow_width.bottom;
base = tip - border_bottom - TAIL_HEIGHT;
}
else if (pos == GTK_POS_LEFT)
{
tip = popover_width - shadow_width.right;
base = tip - border_right - 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
get_border (GtkCssNode *node,
GtkBorder *border)
{
GtkCssStyle *style;
style = gtk_css_node_get_style (node);
border->top = _gtk_css_number_value_get (style->border->border_top_width, 100);
border->right = _gtk_css_number_value_get (style->border->border_right_width, 100);
border->bottom = _gtk_css_number_value_get (style->border->border_bottom_width, 100);
border->left = _gtk_css_number_value_get (style->border->border_left_width, 100);
}
static void
gtk_popover_apply_tail_path (GtkPopover *popover,
cairo_t *cr)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
int initial_x, initial_y;
int tip_x, tip_y;
int final_x, final_y;
GtkBorder border;
GtkWidget *parent;
parent = gtk_widget_get_parent (GTK_WIDGET (popover));
if (!parent)
return;
get_border (priv->arrow_node, &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_update_shape (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (priv->has_arrow)
{
GtkCssBoxes content_css_boxes;
const GskRoundedRect *box;
cairo_surface_t *cairo_surface;
cairo_region_t *region;
cairo_t *cr;
double x, y;
double native_x, native_y;
gtk_native_get_surface_transform (GTK_NATIVE (popover), &native_x, &native_y);
gtk_css_boxes_init (&content_css_boxes, priv->contents_widget);
cairo_surface =
gdk_surface_create_similar_surface (priv->surface,
CAIRO_CONTENT_COLOR_ALPHA,
gdk_surface_get_width (priv->surface),
gdk_surface_get_height (priv->surface));
cr = cairo_create (cairo_surface);
cairo_translate (cr, native_x, native_y);
cairo_set_source_rgba (cr, 0, 0, 0, 1);
gtk_popover_apply_tail_path (popover, cr);
cairo_close_path (cr);
cairo_fill (cr);
box = gtk_css_boxes_get_border_box (&content_css_boxes);
gtk_widget_translate_coordinates (priv->contents_widget, GTK_WIDGET (popover),
0, 0,
&x, &y);
cairo_translate (cr, x, y);
gsk_rounded_rect_path (box, cr);
cairo_fill (cr);
cairo_destroy (cr);
region = gdk_cairo_region_create_from_surface (cairo_surface);
cairo_surface_destroy (cairo_surface);
gdk_surface_set_input_region (priv->surface, region);
cairo_region_destroy (region);
}
else
{
GtkCssNode *content_css_node;
GtkCssStyle *style;
GtkBorder shadow_width;
cairo_rectangle_int_t input_rect;
cairo_region_t *region;
content_css_node =
gtk_widget_get_css_node (GTK_WIDGET (priv->contents_widget));
style = gtk_css_node_get_style (content_css_node);
gtk_css_shadow_value_get_extents (style->background->box_shadow, &shadow_width);
input_rect.x = shadow_width.left;
input_rect.y = shadow_width.top;
input_rect.width =
gdk_surface_get_width (priv->surface) -
(shadow_width.left + shadow_width.right);
input_rect.height =
gdk_surface_get_height (priv->surface) -
(shadow_width.top + shadow_width.bottom);
region = cairo_region_create_rectangle (&input_rect);
gdk_surface_set_input_region (priv->surface, region);
cairo_region_destroy (region);
}
if (_gtk_widget_get_realized (GTK_WIDGET (popover)))
gtk_native_update_opaque_region (GTK_NATIVE (popover), priv->contents_widget, TRUE, TRUE, 0);
}
static int
get_border_radius (GtkWidget *widget)
{
GtkCssStyle *style;
style = gtk_css_node_get_style (gtk_widget_get_css_node (widget));
return round (_gtk_css_number_value_get (style->border->border_top_left_radius, 100));
}
static int
get_minimal_size (GtkPopover *popover,
GtkOrientation orientation)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkPositionType pos;
int minimal_size;
int tail_gap_width = priv->has_arrow ? TAIL_GAP_WIDTH : 0;
int min_width, min_height;
minimal_size = 2 * get_border_radius (GTK_WIDGET (priv->contents_widget));
pos = priv->position;
if ((orientation == GTK_ORIENTATION_HORIZONTAL && POS_IS_VERTICAL (pos)) ||
(orientation == GTK_ORIENTATION_VERTICAL && !POS_IS_VERTICAL (pos)))
minimal_size += tail_gap_width;
gtk_widget_get_size_request (GTK_WIDGET (popover), &min_width, &min_height);
if (orientation == GTK_ORIENTATION_HORIZONTAL)
minimal_size = MAX (minimal_size, min_width);
else
minimal_size = MAX (minimal_size, min_height);
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);
int minimal_size;
int tail_height = priv->has_arrow ? TAIL_HEIGHT : 0;
GtkCssStyle *style;
GtkBorder shadow_width;
if (for_size >= 0 && (POS_IS_VERTICAL (priv->position) == (orientation == GTK_ORIENTATION_HORIZONTAL)))
for_size -= tail_height;
style = gtk_css_node_get_style (gtk_widget_get_css_node (GTK_WIDGET (priv->contents_widget)));
gtk_css_shadow_value_get_extents (style->background->box_shadow, &shadow_width);
gtk_widget_measure (priv->contents_widget,
orientation, for_size,
minimum, natural,
minimum_baseline, natural_baseline);
minimal_size = get_minimal_size (popover, orientation);
*minimum = MAX (*minimum, minimal_size);
*natural = MAX (*natural, minimal_size);
if (orientation == GTK_ORIENTATION_HORIZONTAL)
{
*minimum += shadow_width.left + shadow_width.right;
*natural += shadow_width.left + shadow_width.right;
}
else
{
*minimum += shadow_width.top + shadow_width.bottom;
*natural += shadow_width.top + shadow_width.bottom;
}
if (POS_IS_VERTICAL (priv->position) == (orientation == GTK_ORIENTATION_VERTICAL))
{
*minimum += tail_height;
*natural += tail_height;
}
}
static void
gtk_popover_size_allocate (GtkWidget *widget,
int width,
int height,
int baseline)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkAllocation child_alloc;
int tail_height = priv->has_arrow ? TAIL_HEIGHT : 0;
GtkCssStyle *style;
GtkBorder shadow_width;
style = gtk_css_node_get_style (gtk_widget_get_css_node (GTK_WIDGET (priv->contents_widget)));
gtk_css_shadow_value_get_extents (style->background->box_shadow, &shadow_width);
switch (priv->final_position)
{
case GTK_POS_TOP:
child_alloc.x = shadow_width.left;
child_alloc.y = shadow_width.top;
child_alloc.width = width - (shadow_width.left + shadow_width.right);
child_alloc.height = height - (shadow_width.top + shadow_width.bottom + tail_height);
break;
case GTK_POS_BOTTOM:
child_alloc.x = shadow_width.left;
child_alloc.y = shadow_width.top + tail_height;
child_alloc.width = width - (shadow_width.left + shadow_width.right);
child_alloc.height = height - (shadow_width.top + shadow_width.bottom + tail_height);
break;
case GTK_POS_LEFT:
child_alloc.x = shadow_width.left;
child_alloc.y = shadow_width.top;
child_alloc.width = width - (shadow_width.left + shadow_width.right + tail_height);
child_alloc.height = height - (shadow_width.top + shadow_width.bottom);
break;
case GTK_POS_RIGHT:
child_alloc.x = shadow_width.left + tail_height;
child_alloc.y = shadow_width.top;
child_alloc.width = width - (shadow_width.left + shadow_width.right + tail_height);
child_alloc.height = height - (shadow_width.top + shadow_width.bottom);
break;
default:
break;
}
gtk_widget_size_allocate (priv->contents_widget, &child_alloc, baseline);
if (priv->surface)
{
gtk_popover_update_shape (popover);
g_clear_pointer (&priv->arrow_render_node, gsk_render_node_unref);
}
gtk_tooltip_maybe_allocate (GTK_NATIVE (popover));
}
static void
create_arrow_render_node (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
GtkWidget *widget = GTK_WIDGET (popover);
GtkBorder border;
cairo_t *cr;
GtkSnapshot *snapshot;
GtkSnapshot *bg_snapshot;
GskRenderNode *node;
GtkCssBoxes boxes;
GtkCssStyle *style;
snapshot = gtk_snapshot_new ();
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);
get_border (priv->arrow_node, &border);
style = gtk_css_node_get_style (priv->arrow_node);
/* Render the arrow background */
bg_snapshot = gtk_snapshot_new ();
gtk_css_boxes_init_border_box (&boxes, style,
0, 0,
gtk_widget_get_width (widget),
gtk_widget_get_height (widget));
gtk_css_style_snapshot_background (&boxes, bg_snapshot);
node = gtk_snapshot_free_to_node (bg_snapshot);
if (node)
{
gsk_render_node_draw (node, cr);
gsk_render_node_unref (node);
}
/* Render the border of the arrow tip */
if (border.bottom > 0)
{
const GdkRGBA *border_color;
border_color = gtk_css_color_value_get_rgba (style->border->border_left_color ? style->border->border_left_color : style->core->color);
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);
cairo_destroy (cr);
priv->arrow_render_node = gtk_snapshot_free_to_node (snapshot);
}
static void
gtk_popover_snapshot (GtkWidget *widget,
GtkSnapshot *snapshot)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
gtk_widget_snapshot_child (widget, priv->contents_widget, snapshot);
if (priv->has_arrow)
{
if (!priv->arrow_render_node)
create_arrow_render_node (popover);
gtk_snapshot_append_node (snapshot, priv->arrow_render_node);
}
}
static void
gtk_popover_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkPopover *popover = GTK_POPOVER (object);
switch (prop_id)
{
case PROP_POINTING_TO:
gtk_popover_set_pointing_to (popover, g_value_get_boxed (value));
break;
case PROP_POSITION:
gtk_popover_set_position (popover, g_value_get_enum (value));
break;
case PROP_AUTOHIDE:
gtk_popover_set_autohide (popover, g_value_get_boolean (value));
break;
case PROP_DEFAULT_WIDGET:
gtk_popover_set_default_widget (popover, g_value_get_object (value));
break;
case PROP_HAS_ARROW:
gtk_popover_set_has_arrow (popover, g_value_get_boolean (value));
break;
case PROP_MNEMONICS_VISIBLE:
gtk_popover_set_mnemonics_visible (popover, g_value_get_boolean (value));
break;
case PROP_CHILD:
gtk_popover_set_child (popover, g_value_get_object (value));
break;
case PROP_CASCADE_POPDOWN:
gtk_popover_set_cascade_popdown (popover, g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_popover_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkPopover *popover = GTK_POPOVER (object);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
switch (prop_id)
{
case PROP_POINTING_TO:
g_value_set_boxed (value, &priv->pointing_to);
break;
case PROP_POSITION:
g_value_set_enum (value, priv->position);
break;
case PROP_AUTOHIDE:
g_value_set_boolean (value, priv->autohide);
break;
case PROP_DEFAULT_WIDGET:
g_value_set_object (value, priv->default_widget);
break;
case PROP_HAS_ARROW:
g_value_set_boolean (value, priv->has_arrow);
break;
case PROP_MNEMONICS_VISIBLE:
g_value_set_boolean (value, priv->mnemonics_visible);
break;
case PROP_CHILD:
g_value_set_object (value, gtk_popover_get_child (popover));
break;
case PROP_CASCADE_POPDOWN:
g_value_set_boolean (value, priv->cascade_popdown);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
add_tab_bindings (GtkWidgetClass *widget_class,
GdkModifierType modifiers,
GtkDirectionType direction)
{
gtk_widget_class_add_binding_signal (widget_class, GDK_KEY_Tab, modifiers,
"move-focus",
"(i)", direction);
gtk_widget_class_add_binding_signal (widget_class, GDK_KEY_KP_Tab, modifiers,
"move-focus",
"(i)", direction);
}
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 void
gtk_popover_compute_expand (GtkWidget *widget,
gboolean *hexpand,
gboolean *vexpand)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (priv->child)
{
*hexpand = gtk_widget_compute_expand (priv->child, GTK_ORIENTATION_HORIZONTAL);
*vexpand = gtk_widget_compute_expand (priv->child, GTK_ORIENTATION_VERTICAL);
}
else
{
*hexpand = FALSE;
*vexpand = FALSE;
}
}
static GtkSizeRequestMode
gtk_popover_get_request_mode (GtkWidget *widget)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (priv->child)
return gtk_widget_get_request_mode (priv->child);
else
return GTK_SIZE_REQUEST_CONSTANT_SIZE;
}
static void
gtk_popover_class_init (GtkPopoverClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
object_class->dispose = gtk_popover_dispose;
object_class->finalize = gtk_popover_finalize;
object_class->set_property = gtk_popover_set_property;
object_class->get_property = gtk_popover_get_property;
widget_class->realize = gtk_popover_realize;
widget_class->unrealize = gtk_popover_unrealize;
widget_class->map = gtk_popover_map;
widget_class->unmap = gtk_popover_unmap;
widget_class->focus = gtk_popover_focus;
widget_class->show = gtk_popover_show;
widget_class->hide = gtk_popover_hide;
widget_class->measure = gtk_popover_measure;
widget_class->size_allocate = gtk_popover_size_allocate;
widget_class->snapshot = gtk_popover_snapshot;
widget_class->compute_expand = gtk_popover_compute_expand;
widget_class->get_request_mode = gtk_popover_get_request_mode;
klass->activate_default = gtk_popover_activate_default;
/**
* GtkPopover:pointing-to: (attributes org.gtk.Property.get=gtk_popover_get_pointing_to org.gtk.Property.set=gtk_popover_set_pointing_to)
*
* Rectangle in the parent widget that the popover points to.
*/
properties[PROP_POINTING_TO] =
g_param_spec_boxed ("pointing-to", NULL, NULL,
GDK_TYPE_RECTANGLE,
GTK_PARAM_READWRITE);
/**
* GtkPopover:position: (attributes org.gtk.Property.get=gtk_popover_get_position org.gtk.Property.set=gtk_popover_set_position)
*
* How to place the popover, relative to its parent.
*/
properties[PROP_POSITION] =
g_param_spec_enum ("position", NULL, NULL,
GTK_TYPE_POSITION_TYPE, GTK_POS_BOTTOM,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkPopover:autohide: (attributes org.gtk.Property.get=gtk_popover_get_autohide org.gtk.Property.set=gtk_popover_set_autohide)
*
* Whether to dismiss the popover on outside clicks.
*/
properties[PROP_AUTOHIDE] =
g_param_spec_boolean ("autohide", NULL, NULL,
TRUE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkPopover:default-widget: (attributes org.gtk.Popover.set=gtk_popover_set_default_widget)
*
* The default widget inside the popover.
*/
properties[PROP_DEFAULT_WIDGET] =
g_param_spec_object ("default-widget", NULL, NULL,
GTK_TYPE_WIDGET,
GTK_PARAM_READWRITE|G_PARAM_STATIC_STRINGS|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkPopover:has-arrow: (attributes org.gtk.Popover.get=gtk_popover_get_has_arrow org.gtk.Property.set=gtk_popover_set_has_arrow)
*
* Whether to draw an arrow.
*/
properties[PROP_HAS_ARROW] =
g_param_spec_boolean ("has-arrow", NULL, NULL,
TRUE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkPopover:mnemonics-visible: (attributes org.gtk.Property.get=gtk_popover_get_mnemonics_visible org.gtk.Property.set=gtk_popover_set_mnemonics_visible)
*
* Whether mnemonics are currently visible in this popover.
*/
properties[PROP_MNEMONICS_VISIBLE] =
g_param_spec_boolean ("mnemonics-visible", NULL, NULL,
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkPopover:child: (attributes org.gtk.Property.get=gtk_popover_get_child org.gtk.Property.set=gtk_popover_set_child)
*
* The child widget.
*/
properties[PROP_CHILD] =
g_param_spec_object ("child", NULL, NULL,
GTK_TYPE_WIDGET,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkPopover:cascade-popdown: (attributes org.gtk.Property.get=gtk_popover_get_cascade_popdown org.gtk.Property.set=gtk_popover_set_cascade_popdown)
*
* Whether the popover pops down after a child popover.
*
* This is used to implement the expected behavior of submenus.
*/
properties[PROP_CASCADE_POPDOWN] =
g_param_spec_boolean ("cascade-popdown", NULL, NULL,
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
g_object_class_install_properties (object_class, NUM_PROPERTIES, properties);
/**
* GtkPopover::closed:
* @self: the `GtkPopover` which received the signal
*
* Emitted when the popover is closed.
*/
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);
/**
* GtkPopover::activate-default:
* @self: the `GtkPopover` which received the signal
*
* Emitted whend the user activates the default widget.
*
* This is a [keybinding signal](class.SignalAction.html).
*/
signals[ACTIVATE_DEFAULT] =
g_signal_new (I_("activate-default"),
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkPopoverClass, activate_default),
NULL, NULL,
NULL,
G_TYPE_NONE,
0);
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_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_set_css_name (widget_class, "popover");
}
/**
* gtk_popover_new:
*
* Creates a new `GtkPopover`.
*
* Returns: the new `GtkPopover`
*/
GtkWidget *
gtk_popover_new (void)
{
return g_object_new (GTK_TYPE_POPOVER, NULL);
}
/**
* gtk_popover_set_child: (attributes org.gtk.Method.set_property=child)
* @popover: a `GtkPopover`
* @child: (nullable): the child widget
*
* Sets the child widget of @popover.
*/
void
gtk_popover_set_child (GtkPopover *popover,
GtkWidget *child)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_if_fail (GTK_IS_POPOVER (popover));
g_return_if_fail (child == NULL || GTK_IS_WIDGET (child));
if (priv->child == child)
return;
g_clear_pointer (&priv->child, gtk_widget_unparent);
if (child)
{
priv->child = child;
gtk_widget_set_parent (child, priv->contents_widget);
}
g_object_notify_by_pspec (G_OBJECT (popover), properties[PROP_CHILD]);
}
/**
* gtk_popover_get_child: (attributes org.gtk.Method.get_property=child)
* @popover: a `GtkPopover`
*
* Gets the child widget of @popover.
*
* Returns: (nullable) (transfer none): the child widget of @popover
*/
GtkWidget *
gtk_popover_get_child (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_val_if_fail (GTK_IS_POPOVER (popover), NULL);
return priv->child;
}
/**
* gtk_popover_set_default_widget: (attributes org.gtk.Method.set_property=default-widget)
* @popover: a `GtkPopover`
* @widget: (nullable): a child widget of @popover to set as
* the default, or %NULL to unset the default widget for the popover
*
* Sets the default widget of a `GtkPopover`.
*
* 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 `GtkPopover`.
*/
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));
if (priv->default_widget == widget)
return;
if (priv->default_widget)
{
_gtk_widget_set_has_default (priv->default_widget, FALSE);
gtk_widget_queue_draw (priv->default_widget);
g_object_notify (G_OBJECT (priv->default_widget), "has-default");
}
g_set_object (&priv->default_widget, widget);
if (priv->default_widget)
{
_gtk_widget_set_has_default (priv->default_widget, TRUE);
gtk_widget_queue_draw (priv->default_widget);
g_object_notify (G_OBJECT (priv->default_widget), "has-default");
}
g_object_notify_by_pspec (G_OBJECT (popover), properties[PROP_DEFAULT_WIDGET]);
}
static void
gtk_popover_shortcut_manager_interface_init (GtkShortcutManagerInterface *iface)
{
}
static void
gtk_popover_native_interface_init (GtkNativeInterface *iface)
{
iface->get_surface = gtk_popover_native_get_surface;
iface->get_renderer = gtk_popover_native_get_renderer;
iface->get_surface_transform = gtk_popover_native_get_surface_transform;
iface->layout = gtk_popover_native_layout;
}
static GtkBuildableIface *parent_buildable_iface;
static void
gtk_popover_buildable_add_child (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const char *type)
{
if (GTK_IS_WIDGET (child))
gtk_popover_set_child (GTK_POPOVER (buildable), GTK_WIDGET (child));
else
parent_buildable_iface->add_child (buildable, builder, child, type);
}
static void
gtk_popover_buildable_init (GtkBuildableIface *iface)
{
parent_buildable_iface = g_type_interface_peek_parent (iface);
iface->add_child = gtk_popover_buildable_add_child;
}
/**
* gtk_popover_set_pointing_to: (attributes org.gtk.Method.set_property=pointing-to)
* @popover: a `GtkPopover`
* @rect: (nullable): rectangle to point to
*
* Sets the rectangle that @popover points to.
*
* This is in the coordinate space of the @popover parent.
*/
void
gtk_popover_set_pointing_to (GtkPopover *popover,
const GdkRectangle *rect)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_if_fail (GTK_IS_POPOVER (popover));
if (rect)
{
priv->pointing_to = *rect;
priv->has_pointing_to = TRUE;
priv->pointing_to.width = MAX (priv->pointing_to.width, 1);
priv->pointing_to.height = MAX (priv->pointing_to.height, 1);
}
else
priv->has_pointing_to = FALSE;
g_object_notify_by_pspec (G_OBJECT (popover), properties[PROP_POINTING_TO]);
if (gtk_widget_is_visible (GTK_WIDGET (popover)))
present_popup (popover);
}
/**
* gtk_popover_get_pointing_to: (attributes org.gtk.Method.get_property=pointing-to)
* @popover: a `GtkPopover`
* @rect: (out): location to store the rectangle
*
* Gets the rectangle that the popover points to.
*
* 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 parent
* 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
{
graphene_rect_t r;
GtkWidget *parent = gtk_widget_get_parent (GTK_WIDGET (popover));
if (!gtk_widget_compute_bounds (parent, parent, &r))
return FALSE;
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: (attributes org.gtk.Method.set_property=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)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_if_fail (GTK_IS_POPOVER (popover));
if (priv->position == position)
return;
priv->position = position;
priv->final_position = position;
g_object_notify_by_pspec (G_OBJECT (popover), properties[PROP_POSITION]);
gtk_widget_queue_resize (GTK_WIDGET (popover));
if (gtk_widget_is_visible (GTK_WIDGET (popover)))
present_popup (popover);
}
/**
* gtk_popover_get_position: (attributes org.gtk.Method.get_property=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->position;
}
/**
* gtk_popover_set_autohide: (attributes org.gtk.Method.set_property=autohide)
* @popover: a `GtkPopover`
* @autohide: %TRUE to dismiss the popover on outside clicks
*
* Sets whether @popover is modal.
*
* A modal popover will grab the keyboard focus on it when being
* displayed. Focus will wrap around within the popover. Clicking
* outside the popover area or pressing Esc will dismiss the popover.
*
* Called this function on an already showing popup with a new
* autohide value different from the current one, will cause the
* popup to be hidden.
*/
void
gtk_popover_set_autohide (GtkPopover *popover,
gboolean autohide)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_if_fail (GTK_IS_POPOVER (popover));
autohide = autohide != FALSE;
if (priv->autohide == autohide)
return;
priv->autohide = autohide;
gtk_widget_unrealize (GTK_WIDGET (popover));
g_object_notify_by_pspec (G_OBJECT (popover), properties[PROP_AUTOHIDE]);
}
/**
* gtk_popover_get_autohide: (attributes org.gtk.Method.get_property=autohide)
* @popover: a `GtkPopover`
*
* Returns whether the popover is modal.
*
* See [method@Gtk.Popover.set_autohide] for the
* implications of this.
*
* Returns: %TRUE if @popover is modal
*/
gboolean
gtk_popover_get_autohide (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_val_if_fail (GTK_IS_POPOVER (popover), FALSE);
return priv->autohide;
}
/**
* gtk_popover_popup:
* @popover: a `GtkPopover`
*
* Pops @popover up.
*/
void
gtk_popover_popup (GtkPopover *popover)
{
g_return_if_fail (GTK_IS_POPOVER (popover));
gtk_widget_set_visible (GTK_WIDGET (popover), TRUE);
}
static void
cascade_popdown (GtkPopover *popover)
{
GtkWidget *parent;
/* Do not trigger cascade close from non-modal popovers */
if (!gtk_popover_get_autohide (popover))
return;
parent = gtk_widget_get_parent (GTK_WIDGET (popover));
while (parent)
{
if (GTK_IS_POPOVER (parent))
{
if (gtk_popover_get_cascade_popdown (GTK_POPOVER (parent)))
gtk_widget_set_visible (parent, FALSE);
else
break;
}
parent = gtk_widget_get_parent (parent);
}
}
/**
* gtk_popover_popdown:
* @popover: a `GtkPopover`
*
* Pops @popover down.
*
* This may have the side-effect of closing a parent popover
* as well. See [property@Gtk.Popover:cascade-popdown].
*/
void
gtk_popover_popdown (GtkPopover *popover)
{
g_return_if_fail (GTK_IS_POPOVER (popover));
gtk_widget_set_visible (GTK_WIDGET (popover), FALSE);
cascade_popdown (popover);
}
GtkWidget *
gtk_popover_get_contents_widget (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
return priv->contents_widget;
}
/**
* gtk_popover_set_has_arrow: (attributes org.gtk.Method.set_property=has-arrow)
* @popover: a `GtkPopover`
* @has_arrow: %TRUE to draw an arrow
*
* Sets whether this popover should draw an arrow
* pointing at the widget it is relative to.
*/
void
gtk_popover_set_has_arrow (GtkPopover *popover,
gboolean has_arrow)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_if_fail (GTK_IS_POPOVER (popover));
if (priv->has_arrow == has_arrow)
return;
priv->has_arrow = has_arrow;
g_object_notify_by_pspec (G_OBJECT (popover), properties[PROP_HAS_ARROW]);
gtk_widget_queue_resize (GTK_WIDGET (popover));
}
/**
* gtk_popover_get_has_arrow: (attributes org.gtk.Method.get_property=has-arrow)
* @popover: a `GtkPopover`
*
* Gets whether this popover is showing an arrow
* pointing at the widget that it is relative to.
*
* Returns: whether the popover has an arrow
*/
gboolean
gtk_popover_get_has_arrow (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_val_if_fail (GTK_IS_POPOVER (popover), TRUE);
return priv->has_arrow;
}
/**
* gtk_popover_set_mnemonics_visible: (attributes org.gtk.Method.set_property=mnemonics-visible)
* @popover: a `GtkPopover`
* @mnemonics_visible: the new value
*
* Sets whether mnemonics should be visible.
*/
void
gtk_popover_set_mnemonics_visible (GtkPopover *popover,
gboolean mnemonics_visible)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_if_fail (GTK_IS_POPOVER (popover));
if (priv->mnemonics_visible == mnemonics_visible)
return;
priv->mnemonics_visible = mnemonics_visible;
g_object_notify_by_pspec (G_OBJECT (popover), properties[PROP_MNEMONICS_VISIBLE]);
gtk_widget_queue_resize (GTK_WIDGET (popover));
if (priv->mnemonics_display_timeout_id)
{
g_source_remove (priv->mnemonics_display_timeout_id);
priv->mnemonics_display_timeout_id = 0;
}
}
/**
* gtk_popover_get_mnemonics_visible: (attributes org.gtk.Method.get_property=mnemonics-visible)
* @popover: a `GtkPopover`
*
* Gets whether mnemonics are visible.
*
* Returns: %TRUE if mnemonics are supposed to be visible
* in this popover
*/
gboolean
gtk_popover_get_mnemonics_visible (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_val_if_fail (GTK_IS_POPOVER (popover), FALSE);
return priv->mnemonics_visible;
}
void
gtk_popover_disable_auto_mnemonics (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
priv->disable_auto_mnemonics = TRUE;
}
/**
* gtk_popover_set_offset:
* @popover: a `GtkPopover`
* @x_offset: the x offset to adjust the position by
* @y_offset: the y offset to adjust the position by
*
* Sets the offset to use when calculating the position
* of the popover.
*
* These values are used when preparing the [struct@Gdk.PopupLayout]
* for positioning the popover.
*/
void
gtk_popover_set_offset (GtkPopover *popover,
int x_offset,
int y_offset)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_if_fail (GTK_IS_POPOVER (popover));
if (priv->x_offset != x_offset || priv->y_offset != y_offset)
{
priv->x_offset = x_offset;
priv->y_offset = y_offset;
gtk_widget_queue_resize (GTK_WIDGET (popover));
}
}
/**
* gtk_popover_get_offset:
* @popover: a `GtkPopover`
* @x_offset: (out) (optional): a location for the x_offset
* @y_offset: (out) (optional): a location for the y_offset
*
* Gets the offset previous set with [method@Gtk.Popover.set_offset()].
*/
void
gtk_popover_get_offset (GtkPopover *popover,
int *x_offset,
int *y_offset)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
g_return_if_fail (GTK_IS_POPOVER (popover));
if (x_offset)
*x_offset = priv->x_offset;
if (y_offset)
*y_offset = priv->y_offset;
}
/**
* gtk_popover_set_cascade_popdown: (attributes org.gtk.Method.set_property=cascade-popdown)
* @popover: A `GtkPopover`
* @cascade_popdown: %TRUE if the popover should follow a child closing
*
* If @cascade_popdown is %TRUE, the popover will be
* closed when a child modal popover is closed.
*
* If %FALSE, @popover will stay visible.
*/
void
gtk_popover_set_cascade_popdown (GtkPopover *popover,
gboolean cascade_popdown)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
if (priv->cascade_popdown != !!cascade_popdown)
{
priv->cascade_popdown = !!cascade_popdown;
g_object_notify (G_OBJECT (popover), "cascade-popdown");
}
}
/**
* gtk_popover_get_cascade_popdown: (attributes org.gtk.Method.get_property=cascade-popdown)
* @popover: a `GtkPopover`
*
* Returns whether the popover will close after a modal child is closed.
*
* Returns: %TRUE if @popover will close after a modal child.
*/
gboolean
gtk_popover_get_cascade_popdown (GtkPopover *popover)
{
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
return priv->cascade_popdown;
}
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