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gtk2/gdk/wayland/gdkwindow-wayland.c
Olivier Fourdan 2324b96a32 wayland: check valid pending cairo surface 
gdk_wayland_window_attach_image() is normally called from
gdk_window_end_paint() to notify the compositor of newly staged drawing.

If any of the drawing code inadvertently dispatches the wayland event
loop (for instance with a gdk_flush() call), then it's possible that by
the time gdk_window_end_paint() is called, the staged drawing is already
destroyed.

This commit bypasses the attach_image call in scenarios where the staged
drawing is prematurely dropped.

https://bugzilla.gnome.org/show_bug.cgi?id=773274
2016-11-03 08:50:34 +01:00

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/*
* Copyright © 2010 Intel Corporation
*
* 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/>.
*/
#include "config.h"
#include <netinet/in.h>
#include <unistd.h>
#include "gdk.h"
#include "gdkwayland.h"
#include "gdkwindow.h"
#include "gdkwindowimpl.h"
#include "gdkdisplay-wayland.h"
#include "gdkglcontext-wayland.h"
#include "gdkframeclockprivate.h"
#include "gdkprivate-wayland.h"
#include "gdkinternals.h"
#include "gdkdeviceprivate.h"
#include "gdkprivate-wayland.h"
#include "xdg-shell-unstable-v6-client-protocol.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
enum {
COMMITTED,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL];
#define WINDOW_IS_TOPLEVEL_OR_FOREIGN(window) \
(GDK_WINDOW_TYPE (window) != GDK_WINDOW_CHILD)
#define WINDOW_IS_TOPLEVEL(window) \
(GDK_WINDOW_TYPE (window) != GDK_WINDOW_CHILD && \
GDK_WINDOW_TYPE (window) != GDK_WINDOW_FOREIGN)
#define MAX_WL_BUFFER_SIZE (4083) /* 4096 minus header, string argument length and NUL byte */
typedef struct _GdkWaylandWindow GdkWaylandWindow;
typedef struct _GdkWaylandWindowClass GdkWaylandWindowClass;
struct _GdkWaylandWindow
{
GdkWindow parent;
};
struct _GdkWaylandWindowClass
{
GdkWindowClass parent_class;
};
G_DEFINE_TYPE (GdkWaylandWindow, gdk_wayland_window, GDK_TYPE_WINDOW)
static void
gdk_wayland_window_class_init (GdkWaylandWindowClass *wayland_window_class)
{
}
static void
gdk_wayland_window_init (GdkWaylandWindow *wayland_window)
{
}
#define GDK_TYPE_WINDOW_IMPL_WAYLAND (_gdk_window_impl_wayland_get_type ())
#define GDK_WINDOW_IMPL_WAYLAND(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_WINDOW_IMPL_WAYLAND, GdkWindowImplWayland))
#define GDK_WINDOW_IMPL_WAYLAND_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_WINDOW_IMPL_WAYLAND, GdkWindowImplWaylandClass))
#define GDK_IS_WINDOW_IMPL_WAYLAND(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_WINDOW_IMPL_WAYLAND))
#define GDK_IS_WINDOW_IMPL_WAYLAND_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_WINDOW_IMPL_WAYLAND))
#define GDK_WINDOW_IMPL_WAYLAND_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_WINDOW_IMPL_WAYLAND, GdkWindowImplWaylandClass))
typedef struct _GdkWindowImplWayland GdkWindowImplWayland;
typedef struct _GdkWindowImplWaylandClass GdkWindowImplWaylandClass;
typedef enum _PositionMethod
{
POSITION_METHOD_NONE,
POSITION_METHOD_MOVE_RESIZE,
POSITION_METHOD_MOVE_TO_RECT
} PositionMethod;
struct _GdkWindowImplWayland
{
GdkWindowImpl parent_instance;
GdkWindow *wrapper;
struct {
/* The wl_outputs that this window currently touches */
GSList *outputs;
struct wl_surface *wl_surface;
struct zxdg_surface_v6 *xdg_surface;
struct zxdg_toplevel_v6 *xdg_toplevel;
struct zxdg_popup_v6 *xdg_popup;
struct gtk_surface1 *gtk_surface;
struct wl_subsurface *wl_subsurface;
struct wl_egl_window *egl_window;
struct wl_egl_window *dummy_egl_window;
struct zxdg_exported_v1 *xdg_exported;
} display_server;
EGLSurface egl_surface;
EGLSurface dummy_egl_surface;
unsigned int initial_configure_received : 1;
unsigned int mapped : 1;
unsigned int use_custom_surface : 1;
unsigned int pending_buffer_attached : 1;
unsigned int pending_commit : 1;
unsigned int awaiting_frame : 1;
GdkWindowTypeHint hint;
GdkWindow *transient_for;
GdkWindow *popup_parent;
PositionMethod position_method;
cairo_surface_t *staging_cairo_surface;
cairo_surface_t *committed_cairo_surface;
cairo_surface_t *backfill_cairo_surface;
int pending_buffer_offset_x;
int pending_buffer_offset_y;
gchar *title;
struct {
gboolean was_set;
gchar *application_id;
gchar *app_menu_path;
gchar *menubar_path;
gchar *window_object_path;
gchar *application_object_path;
gchar *unique_bus_name;
} application;
GdkGeometry geometry_hints;
GdkWindowHints geometry_mask;
GdkSeat *grab_input_seat;
gint64 pending_frame_counter;
guint32 scale;
int margin_left;
int margin_right;
int margin_top;
int margin_bottom;
gboolean margin_dirty;
int initial_fullscreen_monitor;
cairo_region_t *opaque_region;
gboolean opaque_region_dirty;
cairo_region_t *input_region;
gboolean input_region_dirty;
cairo_region_t *staged_updates_region;
int saved_width;
int saved_height;
gulong parent_surface_committed_handler;
struct {
GdkRectangle rect;
GdkGravity rect_anchor;
GdkGravity window_anchor;
GdkAnchorHints anchor_hints;
gint rect_anchor_dx;
gint rect_anchor_dy;
} pending_move_to_rect;
struct {
int width;
int height;
GdkWindowState state;
} pending;
struct {
GdkWaylandWindowExported callback;
gpointer user_data;
GDestroyNotify destroy_func;
} exported;
struct zxdg_imported_v1 *imported_transient_for;
};
struct _GdkWindowImplWaylandClass
{
GdkWindowImplClass parent_class;
};
static void gdk_wayland_window_maybe_configure (GdkWindow *window,
int width,
int height,
int scale);
static void maybe_set_gtk_surface_dbus_properties (GdkWindow *window);
static void maybe_set_gtk_surface_modal (GdkWindow *window);
static void gdk_window_request_transient_parent_commit (GdkWindow *window);
static void gdk_wayland_window_sync_margin (GdkWindow *window);
static void gdk_wayland_window_sync_input_region (GdkWindow *window);
static void gdk_wayland_window_sync_opaque_region (GdkWindow *window);
static void unset_transient_for_exported (GdkWindow *window);
static void calculate_moved_to_rect_result (GdkWindow *window,
int x,
int y,
int width,
int height,
GdkRectangle *flipped_rect,
GdkRectangle *final_rect,
gboolean *flipped_x,
gboolean *flipped_y);
GType _gdk_window_impl_wayland_get_type (void);
G_DEFINE_TYPE (GdkWindowImplWayland, _gdk_window_impl_wayland, GDK_TYPE_WINDOW_IMPL)
static void
_gdk_window_impl_wayland_init (GdkWindowImplWayland *impl)
{
impl->scale = 1;
impl->initial_fullscreen_monitor = -1;
impl->saved_width = -1;
impl->saved_height = -1;
}
static void
_gdk_wayland_screen_add_orphan_dialog (GdkWindow *window)
{
GdkWaylandDisplay *display_wayland =
GDK_WAYLAND_DISPLAY (gdk_window_get_display (window));
if (!g_list_find (display_wayland->orphan_dialogs, window))
display_wayland->orphan_dialogs =
g_list_prepend (display_wayland->orphan_dialogs, window);
}
static void
drop_cairo_surfaces (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
g_clear_pointer (&impl->staging_cairo_surface, cairo_surface_destroy);
g_clear_pointer (&impl->backfill_cairo_surface, cairo_surface_destroy);
/* We nullify this so if a buffer release comes in later, we won't
* try to reuse that buffer since it's no longer suitable
*/
impl->committed_cairo_surface = NULL;
}
static void
_gdk_wayland_window_save_size (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (window->state & (GDK_WINDOW_STATE_FULLSCREEN | GDK_WINDOW_STATE_MAXIMIZED))
return;
impl->saved_width = window->width - impl->margin_left - impl->margin_right;
impl->saved_height = window->height - impl->margin_top - impl->margin_bottom;
}
static void
_gdk_wayland_window_clear_saved_size (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (window->state & (GDK_WINDOW_STATE_FULLSCREEN | GDK_WINDOW_STATE_MAXIMIZED))
return;
impl->saved_width = -1;
impl->saved_height = -1;
}
/*
* gdk_wayland_window_update_size:
* @drawable: a #GdkDrawableImplWayland.
*
* Updates the state of the drawable (in particular the drawable's
* cairo surface) when its size has changed.
*/
static void
gdk_wayland_window_update_size (GdkWindow *window,
int32_t width,
int32_t height,
int scale)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GdkRectangle area;
cairo_region_t *region;
if ((window->width == width) &&
(window->height == height) &&
(impl->scale == scale))
return;
drop_cairo_surfaces (window);
window->width = width;
window->height = height;
impl->scale = scale;
if (impl->display_server.egl_window)
{
wl_egl_window_resize (impl->display_server.egl_window,
width * scale,
height * scale,
0, 0);
wl_surface_set_buffer_scale (impl->display_server.wl_surface, scale);
}
area.x = 0;
area.y = 0;
area.width = window->width;
area.height = window->height;
region = cairo_region_create_rectangle (&area);
_gdk_window_invalidate_for_expose (window, region);
cairo_region_destroy (region);
}
GdkWindow *
_gdk_wayland_screen_create_root_window (GdkScreen *screen,
int width,
int height)
{
GdkDisplay *display = gdk_screen_get_display (screen);
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
GdkWindow *window;
GdkWindowImplWayland *impl;
window = _gdk_display_create_window (GDK_DISPLAY (display_wayland));
window->impl = g_object_new (GDK_TYPE_WINDOW_IMPL_WAYLAND, NULL);
window->impl_window = window;
impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
impl->wrapper = GDK_WINDOW (window);
if (display_wayland->compositor_version >= WL_SURFACE_HAS_BUFFER_SCALE &&
gdk_display_get_n_monitors (display) > 0)
impl->scale = gdk_monitor_get_scale_factor (gdk_display_get_monitor (display, 0));
/* logical 1x1 fake buffer */
impl->staging_cairo_surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
impl->scale,
impl->scale);
cairo_surface_set_device_scale (impl->staging_cairo_surface, impl->scale, impl->scale);
window->window_type = GDK_WINDOW_ROOT;
window->x = 0;
window->y = 0;
window->abs_x = 0;
window->abs_y = 0;
window->width = width;
window->height = height;
window->viewable = TRUE;
/* see init_randr_support() in gdkscreen-wayland.c */
window->event_mask = GDK_STRUCTURE_MASK;
return window;
}
static const gchar *
get_default_title (void)
{
const char *title;
title = g_get_application_name ();
if (!title)
title = g_get_prgname ();
if (!title)
title = "";
return title;
}
static void
fill_presentation_time_from_frame_time (GdkFrameTimings *timings,
guint32 frame_time)
{
/* The timestamp in a wayland frame is a msec time value that in some
* way reflects the time at which the server started drawing the frame.
* This is not useful from our perspective.
*
* However, for the DRM backend of Weston, on reasonably recent
* Linux, we know that the time is the
* clock_gettime (CLOCK_MONOTONIC) value at the vblank, and that
* backend starts drawing immediately after receiving the vblank
* notification. If we detect this, and make the assumption that the
* compositor will finish drawing before the next vblank, we can
* then determine the presentation time as the frame time we
* received plus one refresh interval.
*
* If a backend is using clock_gettime(CLOCK_MONOTONIC), but not
* picking values right at the vblank, then the presentation times
* we compute won't be accurate, but not really worse than then
* the alternative of not providing presentation times at all.
*
* The complexity here is dealing with the fact that we receive
* only the low 32 bits of the CLOCK_MONOTONIC value in milliseconds.
*/
gint64 now_monotonic = g_get_monotonic_time ();
gint64 now_monotonic_msec = now_monotonic / 1000;
uint32_t now_monotonic_low = (uint32_t)now_monotonic_msec;
if (frame_time - now_monotonic_low < 1000 ||
frame_time - now_monotonic_low > (uint32_t)-1000)
{
/* Timestamp we received is within one second of the current time.
*/
gint64 last_frame_time = now_monotonic + (gint64)1000 * (gint32)(frame_time - now_monotonic_low);
if ((gint32)now_monotonic_low < 0 && (gint32)frame_time > 0)
last_frame_time += (gint64)1000 * G_GINT64_CONSTANT(0x100000000);
else if ((gint32)now_monotonic_low > 0 && (gint32)frame_time < 0)
last_frame_time -= (gint64)1000 * G_GINT64_CONSTANT(0x100000000);
timings->presentation_time = last_frame_time + timings->refresh_interval;
}
}
static void
read_back_cairo_surface (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
cairo_t *cr;
cairo_region_t *paint_region = NULL;
if (!impl->backfill_cairo_surface)
goto out;
paint_region = cairo_region_copy (window->clip_region);
cairo_region_subtract (paint_region, impl->staged_updates_region);
if (cairo_region_is_empty (paint_region))
goto out;
cr = cairo_create (impl->staging_cairo_surface);
cairo_set_source_surface (cr, impl->backfill_cairo_surface, 0, 0);
gdk_cairo_region (cr, paint_region);
cairo_clip (cr);
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
cairo_paint (cr);
cairo_destroy (cr);
cairo_surface_flush (impl->staging_cairo_surface);
out:
g_clear_pointer (&paint_region, cairo_region_destroy);
g_clear_pointer (&impl->staged_updates_region, cairo_region_destroy);
g_clear_pointer (&impl->backfill_cairo_surface, cairo_surface_destroy);
}
static void
frame_callback (void *data,
struct wl_callback *callback,
uint32_t time)
{
GdkWindow *window = data;
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GdkWaylandDisplay *display_wayland =
GDK_WAYLAND_DISPLAY (gdk_window_get_display (window));
GdkFrameClock *clock = gdk_window_get_frame_clock (window);
GdkFrameTimings *timings;
GDK_NOTE (EVENTS,
g_message ("frame %p", window));
wl_callback_destroy (callback);
if (GDK_WINDOW_DESTROYED (window))
return;
if (!impl->awaiting_frame)
return;
impl->awaiting_frame = FALSE;
_gdk_frame_clock_thaw (clock);
timings = gdk_frame_clock_get_timings (clock, impl->pending_frame_counter);
impl->pending_frame_counter = 0;
if (timings == NULL)
return;
timings->refresh_interval = 16667; /* default to 1/60th of a second */
if (impl->display_server.outputs)
{
/* We pick a random output out of the outputs that the window touches
* The rate here is in milli-hertz */
int refresh_rate =
_gdk_wayland_screen_get_output_refresh_rate (display_wayland->screen,
impl->display_server.outputs->data);
if (refresh_rate != 0)
timings->refresh_interval = G_GINT64_CONSTANT(1000000000) / refresh_rate;
}
fill_presentation_time_from_frame_time (timings, time);
timings->complete = TRUE;
#ifdef G_ENABLE_DEBUG
if ((_gdk_debug_flags & GDK_DEBUG_FRAMES) != 0)
_gdk_frame_clock_debug_print_timings (clock, timings);
#endif
}
static const struct wl_callback_listener frame_listener = {
frame_callback
};
static void
on_frame_clock_before_paint (GdkFrameClock *clock,
GdkWindow *window)
{
GdkFrameTimings *timings = gdk_frame_clock_get_current_timings (clock);
gint64 presentation_time;
gint64 refresh_interval;
if (window->update_freeze_count > 0)
return;
gdk_frame_clock_get_refresh_info (clock,
timings->frame_time,
&refresh_interval, &presentation_time);
if (presentation_time != 0)
{
/* Assume the algorithm used by the DRM backend of Weston - it
* starts drawing at the next vblank after receiving the commit
* for this frame, and presentation occurs at the vblank
* after that.
*/
timings->predicted_presentation_time = presentation_time + refresh_interval;
}
else
{
/* As above, but we don't actually know the phase of the vblank,
* so just assume that we're half way through a refresh cycle.
*/
timings->predicted_presentation_time = timings->frame_time + refresh_interval / 2 + refresh_interval;
}
}
static void
on_frame_clock_after_paint (GdkFrameClock *clock,
GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
struct wl_callback *callback;
if (!impl->pending_commit)
return;
if (window->update_freeze_count > 0)
return;
callback = wl_surface_frame (impl->display_server.wl_surface);
wl_callback_add_listener (callback, &frame_listener, window);
_gdk_frame_clock_freeze (clock);
/* Before we commit a new buffer, make sure we've backfilled
* undrawn parts from any old committed buffer
*/
if (impl->pending_buffer_attached)
read_back_cairo_surface (window);
/* From this commit forward, we can't write to the buffer,
* it's "live". In the future, if we need to stage more changes
* we have to allocate a new staging buffer and draw to it instead.
*
* Our one saving grace is if the compositor releases the buffer
* before we need to stage any changes, then we can take it back and
* use it again.
*/
wl_surface_commit (impl->display_server.wl_surface);
if (impl->pending_buffer_attached)
impl->committed_cairo_surface = g_steal_pointer (&impl->staging_cairo_surface);
impl->pending_buffer_attached = FALSE;
impl->pending_commit = FALSE;
impl->pending_frame_counter = gdk_frame_clock_get_frame_counter (clock);
impl->awaiting_frame = TRUE;
g_signal_emit (impl, signals[COMMITTED], 0);
}
static void
window_update_scale (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GdkWaylandDisplay *display_wayland =
GDK_WAYLAND_DISPLAY (gdk_window_get_display (window));
guint32 scale;
GSList *l;
if (display_wayland->compositor_version < WL_SURFACE_HAS_BUFFER_SCALE)
{
/* We can't set the scale on this surface */
return;
}
scale = 1;
for (l = impl->display_server.outputs; l != NULL; l = l->next)
{
guint32 output_scale =
_gdk_wayland_screen_get_output_scale (display_wayland->screen, l->data);
scale = MAX (scale, output_scale);
}
/* Notify app that scale changed */
gdk_wayland_window_maybe_configure (window, window->width, window->height, scale);
}
static void
on_monitors_changed (GdkScreen *screen,
GdkWindow *window)
{
window_update_scale (window);
}
static void gdk_wayland_window_create_surface (GdkWindow *window);
void
_gdk_wayland_display_create_window_impl (GdkDisplay *display,
GdkWindow *window,
GdkWindow *real_parent,
GdkScreen *screen,
GdkEventMask event_mask,
GdkWindowAttr *attributes,
gint attributes_mask)
{
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
GdkWindowImplWayland *impl;
GdkFrameClock *frame_clock;
const char *title;
impl = g_object_new (GDK_TYPE_WINDOW_IMPL_WAYLAND, NULL);
window->impl = GDK_WINDOW_IMPL (impl);
impl->wrapper = GDK_WINDOW (window);
if (window->width > 65535)
{
g_warning ("Native Windows wider than 65535 pixels are not supported");
window->width = 65535;
}
if (window->height > 65535)
{
g_warning ("Native Windows taller than 65535 pixels are not supported");
window->height = 65535;
}
g_object_ref (window);
/* More likely to be right than just assuming 1 */
if (display_wayland->compositor_version >= WL_SURFACE_HAS_BUFFER_SCALE &&
gdk_display_get_n_monitors (display) > 0)
impl->scale = gdk_monitor_get_scale_factor (gdk_display_get_monitor (display, 0));
impl->title = NULL;
switch (GDK_WINDOW_TYPE (window))
{
case GDK_WINDOW_TOPLEVEL:
case GDK_WINDOW_TEMP:
if (attributes_mask & GDK_WA_TITLE)
title = attributes->title;
else
title = get_default_title ();
gdk_window_set_title (window, title);
break;
case GDK_WINDOW_CHILD:
default:
break;
}
gdk_wayland_window_create_surface (window);
if (attributes_mask & GDK_WA_TYPE_HINT)
gdk_window_set_type_hint (window, attributes->type_hint);
frame_clock = gdk_window_get_frame_clock (window);
g_signal_connect (frame_clock, "before-paint",
G_CALLBACK (on_frame_clock_before_paint), window);
g_signal_connect (frame_clock, "after-paint",
G_CALLBACK (on_frame_clock_after_paint), window);
g_signal_connect (screen, "monitors-changed",
G_CALLBACK (on_monitors_changed), window);
}
static void
gdk_wayland_window_attach_image (GdkWindow *window)
{
GdkWaylandDisplay *display;
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (GDK_WINDOW_DESTROYED (window))
return;
g_assert (_gdk_wayland_is_shm_surface (impl->staging_cairo_surface));
/* Attach this new buffer to the surface */
wl_surface_attach (impl->display_server.wl_surface,
_gdk_wayland_shm_surface_get_wl_buffer (impl->staging_cairo_surface),
impl->pending_buffer_offset_x,
impl->pending_buffer_offset_y);
impl->pending_buffer_offset_x = 0;
impl->pending_buffer_offset_y = 0;
/* Only set the buffer scale if supported by the compositor */
display = GDK_WAYLAND_DISPLAY (gdk_window_get_display (window));
if (display->compositor_version >= WL_SURFACE_HAS_BUFFER_SCALE)
wl_surface_set_buffer_scale (impl->display_server.wl_surface, impl->scale);
impl->pending_buffer_attached = TRUE;
impl->pending_commit = TRUE;
}
static const cairo_user_data_key_t gdk_wayland_window_cairo_key;
static void
buffer_release_callback (void *_data,
struct wl_buffer *wl_buffer)
{
cairo_surface_t *cairo_surface = _data;
GdkWindowImplWayland *impl = cairo_surface_get_user_data (cairo_surface, &gdk_wayland_window_cairo_key);
g_return_if_fail (GDK_IS_WINDOW_IMPL_WAYLAND (impl));
/* The released buffer isn't the latest committed one, we have no further
* use for it, so clean it up.
*/
if (impl->committed_cairo_surface != cairo_surface)
{
/* If this fails, then the surface buffer got reused before it was
* released from the compositor
*/
g_warn_if_fail (impl->staging_cairo_surface != cairo_surface);
cairo_surface_destroy (cairo_surface);
return;
}
if (impl->staged_updates_region != NULL)
{
/* If this fails, then we're tracking staged updates on a staging surface
* that doesn't exist.
*/
g_warn_if_fail (impl->staging_cairo_surface != NULL);
/* If we've staged updates into a new buffer before the release for this
* buffer came in, then we can't reuse this buffer, so unref it. It may still
* be alive as a readback buffer though (via impl->backfill_cairo_surface).
*
* It's possible a staging surface was allocated but no updates were staged.
* If that happened, clean up that staging surface now, since the old commit
* buffer is available again, and reusing the old commit buffer for future
* updates will save having to do a read back later.
*/
if (!cairo_region_is_empty (impl->staged_updates_region))
{
g_clear_pointer (&impl->committed_cairo_surface, cairo_surface_destroy);
return;
}
else
{
g_clear_pointer (&impl->staged_updates_region, cairo_region_destroy);
g_clear_pointer (&impl->staging_cairo_surface, cairo_surface_destroy);
}
}
/* Release came in, we haven't done any interim updates, so we can just use
* the old committed buffer again.
*/
impl->staging_cairo_surface = g_steal_pointer (&impl->committed_cairo_surface);
}
static const struct wl_buffer_listener buffer_listener = {
buffer_release_callback
};
static void
gdk_wayland_window_ensure_cairo_surface (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
/* If we are drawing using OpenGL then we only need a logical 1x1 surface. */
if (impl->display_server.egl_window)
{
if (impl->staging_cairo_surface &&
_gdk_wayland_is_shm_surface (impl->staging_cairo_surface))
cairo_surface_destroy (impl->staging_cairo_surface);
impl->staging_cairo_surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
impl->scale,
impl->scale);
cairo_surface_set_device_scale (impl->staging_cairo_surface,
impl->scale, impl->scale);
}
else if (!impl->staging_cairo_surface)
{
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (gdk_window_get_display (impl->wrapper));
struct wl_buffer *buffer;
impl->staging_cairo_surface = _gdk_wayland_display_create_shm_surface (display_wayland,
impl->wrapper->width,
impl->wrapper->height,
impl->scale);
cairo_surface_set_user_data (impl->staging_cairo_surface,
&gdk_wayland_window_cairo_key,
g_object_ref (impl),
(cairo_destroy_func_t)
g_object_unref);
buffer = _gdk_wayland_shm_surface_get_wl_buffer (impl->staging_cairo_surface);
wl_buffer_add_listener (buffer, &buffer_listener, impl->staging_cairo_surface);
}
}
/* The cairo surface returned here uses a memory segment that's shared
* with the display server. This is not a temporary buffer that gets
* copied to the display server, but the actual buffer the display server
* will ultimately end up sending to the GPU. At the time this happens
* impl->committed_cairo_surface gets set to impl->staging_cairo_surface, and
* impl->staging_cairo_surface gets nullified.
*/
static cairo_surface_t *
gdk_wayland_window_ref_cairo_surface (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (GDK_WINDOW_DESTROYED (impl->wrapper))
return NULL;
gdk_wayland_window_ensure_cairo_surface (window);
cairo_surface_reference (impl->staging_cairo_surface);
return impl->staging_cairo_surface;
}
static cairo_surface_t *
gdk_wayland_window_create_similar_image_surface (GdkWindow * window,
cairo_format_t format,
int width,
int height)
{
return cairo_image_surface_create (format, width, height);
}
static gboolean
gdk_window_impl_wayland_begin_paint (GdkWindow *window)
{
gdk_wayland_window_ensure_cairo_surface (window);
return FALSE;
}
static void
gdk_window_impl_wayland_end_paint (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
cairo_rectangle_int_t rect;
int i, n;
if (impl->staging_cairo_surface &&
_gdk_wayland_is_shm_surface (impl->staging_cairo_surface) &&
!window->current_paint.use_gl &&
!cairo_region_is_empty (window->current_paint.region))
{
gdk_wayland_window_attach_image (window);
/* If there's a committed buffer pending, then track which
* updates are staged until the next frame, so we can back
* fill the unstaged parts of the staging buffer with the
* last frame.
*/
if (impl->committed_cairo_surface != NULL)
{
if (impl->staged_updates_region == NULL)
{
impl->staged_updates_region = cairo_region_copy (window->current_paint.region);
impl->backfill_cairo_surface = cairo_surface_reference (impl->committed_cairo_surface);
}
else
{
cairo_region_union (impl->staged_updates_region, window->current_paint.region);
}
}
n = cairo_region_num_rectangles (window->current_paint.region);
for (i = 0; i < n; i++)
{
cairo_region_get_rectangle (window->current_paint.region, i, &rect);
wl_surface_damage (impl->display_server.wl_surface, rect.x, rect.y, rect.width, rect.height);
}
impl->pending_commit = TRUE;
}
gdk_wayland_window_sync_margin (window);
gdk_wayland_window_sync_opaque_region (window);
gdk_wayland_window_sync_input_region (window);
}
static gboolean
gdk_window_impl_wayland_beep (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GdkWaylandDisplay *display_wayland =
GDK_WAYLAND_DISPLAY (gdk_window_get_display (window));
if (!display_wayland->gtk_shell)
return FALSE;
gtk_shell1_system_bell (display_wayland->gtk_shell,
impl->display_server.gtk_surface);
return TRUE;
}
static void
gdk_window_impl_wayland_finalize (GObject *object)
{
GdkWindowImplWayland *impl;
g_return_if_fail (GDK_IS_WINDOW_IMPL_WAYLAND (object));
impl = GDK_WINDOW_IMPL_WAYLAND (object);
g_free (impl->title);
g_free (impl->application.application_id);
g_free (impl->application.app_menu_path);
g_free (impl->application.menubar_path);
g_free (impl->application.window_object_path);
g_free (impl->application.application_object_path);
g_free (impl->application.unique_bus_name);
g_clear_pointer (&impl->opaque_region, cairo_region_destroy);
g_clear_pointer (&impl->input_region, cairo_region_destroy);
g_clear_pointer (&impl->staged_updates_region, cairo_region_destroy);
G_OBJECT_CLASS (_gdk_window_impl_wayland_parent_class)->finalize (object);
}
static void
gdk_wayland_window_configure (GdkWindow *window,
int width,
int height,
int scale)
{
GdkDisplay *display;
GdkEvent *event;
event = gdk_event_new (GDK_CONFIGURE);
event->configure.window = g_object_ref (window);
event->configure.send_event = FALSE;
event->configure.width = width;
event->configure.height = height;
gdk_wayland_window_update_size (window, width, height, scale);
_gdk_window_update_size (window);
display = gdk_window_get_display (window);
_gdk_wayland_display_deliver_event (display, event);
}
static void
gdk_wayland_window_maybe_configure (GdkWindow *window,
int width,
int height,
int scale)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (window->width == width &&
window->height == height &&
impl->scale == scale)
return;
gdk_wayland_window_configure (window, width, height, scale);
}
static void
gdk_wayland_window_sync_parent (GdkWindow *window,
GdkWindow *parent)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GdkWindowImplWayland *impl_parent = NULL;
struct zxdg_toplevel_v6 *parent_toplevel;
g_assert (parent == NULL ||
gdk_window_get_display (window) == gdk_window_get_display (parent));
if (!impl->display_server.xdg_toplevel)
return;
if (impl->transient_for)
impl_parent = GDK_WINDOW_IMPL_WAYLAND (impl->transient_for->impl);
else if (parent)
impl_parent = GDK_WINDOW_IMPL_WAYLAND (parent->impl);
if (impl_parent)
{
/* XXX: Is this correct? */
if (!impl_parent->display_server.wl_surface)
return;
parent_toplevel = impl_parent->display_server.xdg_toplevel;
}
else
parent_toplevel = NULL;
zxdg_toplevel_v6_set_parent (impl->display_server.xdg_toplevel,
parent_toplevel);
}
static void
gdk_wayland_window_update_dialogs (GdkWindow *window)
{
GdkWaylandDisplay *display_wayland =
GDK_WAYLAND_DISPLAY (gdk_window_get_display (window));
GList *l;
if (!display_wayland->orphan_dialogs)
return;
for (l = display_wayland->orphan_dialogs; l; l = l->next)
{
GdkWindow *w = l->data;
GdkWindowImplWayland *impl;
if (!GDK_IS_WINDOW_IMPL_WAYLAND(w->impl))
continue;
impl = GDK_WINDOW_IMPL_WAYLAND (w->impl);
if (w == window)
continue;
if (impl->hint != GDK_WINDOW_TYPE_HINT_DIALOG)
continue;
if (impl->transient_for)
continue;
/* Update the parent relationship only for dialogs without transients */
gdk_wayland_window_sync_parent (w, window);
}
}
static void
gdk_wayland_window_sync_title (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (!impl->display_server.xdg_toplevel)
return;
if (!impl->title)
return;
zxdg_toplevel_v6_set_title (impl->display_server.xdg_toplevel, impl->title);
}
static void
gdk_wayland_window_get_window_geometry (GdkWindow *window,
GdkRectangle *geometry)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
*geometry = (GdkRectangle) {
.x = impl->margin_left,
.y = impl->margin_top,
.width = window->width - (impl->margin_left + impl->margin_right),
.height = window->height - (impl->margin_top + impl->margin_bottom)
};
}
static void
gdk_wayland_window_sync_margin (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GdkRectangle geometry;
if (!impl->display_server.xdg_surface)
return;
gdk_wayland_window_get_window_geometry (window, &geometry);
gdk_window_set_geometry_hints (window,
&impl->geometry_hints,
impl->geometry_mask);
zxdg_surface_v6_set_window_geometry (impl->display_server.xdg_surface,
geometry.x,
geometry.y,
geometry.width,
geometry.height);
}
static struct wl_region *
wl_region_from_cairo_region (GdkWaylandDisplay *display,
cairo_region_t *region)
{
struct wl_region *wl_region;
int i, n_rects;
wl_region = wl_compositor_create_region (display->compositor);
if (wl_region == NULL)
return NULL;
n_rects = cairo_region_num_rectangles (region);
for (i = 0; i < n_rects; i++)
{
cairo_rectangle_int_t rect;
cairo_region_get_rectangle (region, i, &rect);
wl_region_add (wl_region, rect.x, rect.y, rect.width, rect.height);
}
return wl_region;
}
static void
gdk_wayland_window_sync_opaque_region (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
struct wl_region *wl_region = NULL;
if (!impl->display_server.wl_surface)
return;
if (!impl->opaque_region_dirty)
return;
if (impl->opaque_region != NULL)
wl_region = wl_region_from_cairo_region (GDK_WAYLAND_DISPLAY (gdk_window_get_display (window)),
impl->opaque_region);
wl_surface_set_opaque_region (impl->display_server.wl_surface, wl_region);
if (wl_region != NULL)
wl_region_destroy (wl_region);
impl->opaque_region_dirty = FALSE;
}
static void
gdk_wayland_window_sync_input_region (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
struct wl_region *wl_region = NULL;
if (!impl->display_server.wl_surface)
return;
if (!impl->input_region_dirty)
return;
if (impl->input_region != NULL)
wl_region = wl_region_from_cairo_region (GDK_WAYLAND_DISPLAY (gdk_window_get_display (window)),
impl->input_region);
wl_surface_set_input_region (impl->display_server.wl_surface, wl_region);
if (wl_region != NULL)
wl_region_destroy (wl_region);
impl->input_region_dirty = FALSE;
}
static void
surface_enter (void *data,
struct wl_surface *wl_surface,
struct wl_output *output)
{
GdkWindow *window = GDK_WINDOW (data);
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GDK_NOTE (EVENTS,
g_message ("surface enter, window %p output %p", window, output));
impl->display_server.outputs = g_slist_prepend (impl->display_server.outputs, output);
window_update_scale (window);
}
static void
surface_leave (void *data,
struct wl_surface *wl_surface,
struct wl_output *output)
{
GdkWindow *window = GDK_WINDOW (data);
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GDK_NOTE (EVENTS,
g_message ("surface leave, window %p output %p", window, output));
impl->display_server.outputs = g_slist_remove (impl->display_server.outputs, output);
window_update_scale (window);
}
static const struct wl_surface_listener surface_listener = {
surface_enter,
surface_leave
};
static void
on_parent_surface_committed (GdkWindowImplWayland *parent_impl,
GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
g_signal_handler_disconnect (parent_impl,
impl->parent_surface_committed_handler);
impl->parent_surface_committed_handler = 0;
wl_subsurface_set_desync (impl->display_server.wl_subsurface);
}
static void
gdk_wayland_window_create_subsurface (GdkWindow *window)
{
GdkWindowImplWayland *impl, *parent_impl = NULL;
GdkWaylandDisplay *display_wayland;
impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (!impl->display_server.wl_surface)
return; /* Bail out, surface and subsurface will be created later when shown */
if (impl->display_server.wl_subsurface)
return;
if (impl->transient_for)
parent_impl = GDK_WINDOW_IMPL_WAYLAND (impl->transient_for->impl);
if (parent_impl)
{
display_wayland = GDK_WAYLAND_DISPLAY (gdk_window_get_display (window));
impl->display_server.wl_subsurface =
wl_subcompositor_get_subsurface (display_wayland->subcompositor,
impl->display_server.wl_surface, parent_impl->display_server.wl_surface);
wl_subsurface_set_position (impl->display_server.wl_subsurface, window->x, window->y);
/* In order to synchronize the initial position with the initial frame
* content, wait with making the subsurface desynchronized until after
* the parent was committed.
*/
impl->parent_surface_committed_handler =
g_signal_connect_object (parent_impl, "committed",
G_CALLBACK (on_parent_surface_committed),
window, 0);
gdk_window_request_transient_parent_commit (window);
}
}
static void
gdk_wayland_window_create_surface (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (gdk_window_get_display (window));
impl->display_server.wl_surface = wl_compositor_create_surface (display_wayland->compositor);
wl_surface_add_listener (impl->display_server.wl_surface, &surface_listener, window);
}
static void
xdg_surface_configure (void *data,
struct zxdg_surface_v6 *xdg_surface,
uint32_t serial)
{
GdkWindow *window = GDK_WINDOW (data);
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GdkWindowState new_state;
int width = impl->pending.width;
int height = impl->pending.height;
gboolean fixed_size;
if (!impl->initial_configure_received)
{
gdk_window_thaw_updates (window);
impl->initial_configure_received = TRUE;
}
if (impl->display_server.xdg_popup)
{
zxdg_surface_v6_ack_configure (xdg_surface, serial);
return;
}
new_state = impl->pending.state;
impl->pending.state = 0;
fixed_size =
new_state & (GDK_WINDOW_STATE_MAXIMIZED | GDK_WINDOW_STATE_FULLSCREEN | GDK_WINDOW_STATE_TILED);
/* According to xdg_shell, an xdg_surface.configure with size 0x0
* should be interpreted as that it is up to the client to set a
* size.
*
* When transitioning from maximize or fullscreen state, this means
* the client should configure its size back to what it was before
* being maximize or fullscreen.
*/
if (width == 0 && height == 0 && !fixed_size)
{
width = impl->saved_width;
height = impl->saved_height;
}
if (width > 0 && height > 0)
{
GdkWindowHints geometry_mask = impl->geometry_mask;
/* Ignore size increments for maximized/fullscreen windows */
if (fixed_size)
geometry_mask &= ~GDK_HINT_RESIZE_INC;
gdk_window_constrain_size (&impl->geometry_hints,
geometry_mask,
width + impl->margin_left + impl->margin_right,
height + impl->margin_top + impl->margin_bottom,
&width,
&height);
/* Save size for next time we get 0x0 */
_gdk_wayland_window_save_size (window);
gdk_wayland_window_configure (window, width, height, impl->scale);
}
GDK_NOTE (EVENTS,
g_message ("configure, window %p %dx%d,%s%s%s%s",
window, width, height,
(new_state & GDK_WINDOW_STATE_FULLSCREEN) ? " fullscreen" : "",
(new_state & GDK_WINDOW_STATE_MAXIMIZED) ? " maximized" : "",
(new_state & GDK_WINDOW_STATE_FOCUSED) ? " focused" : "",
(new_state & GDK_WINDOW_STATE_TILED) ? " tiled" : ""));
_gdk_set_window_state (window, new_state);
zxdg_surface_v6_ack_configure (xdg_surface, serial);
if (impl->hint != GDK_WINDOW_TYPE_HINT_DIALOG &&
new_state & GDK_WINDOW_STATE_FOCUSED)
gdk_wayland_window_update_dialogs (window);
}
static const struct zxdg_surface_v6_listener xdg_surface_listener = {
xdg_surface_configure,
};
static void
xdg_toplevel_configure (void *data,
struct zxdg_toplevel_v6 *xdg_toplevel,
int32_t width,
int32_t height,
struct wl_array *states)
{
GdkWindow *window = GDK_WINDOW (data);
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
uint32_t *p;
wl_array_for_each (p, states)
{
uint32_t state = *p;
switch (state)
{
case ZXDG_TOPLEVEL_V6_STATE_FULLSCREEN:
impl->pending.state |= GDK_WINDOW_STATE_FULLSCREEN;
break;
case ZXDG_TOPLEVEL_V6_STATE_MAXIMIZED:
impl->pending.state |= GDK_WINDOW_STATE_MAXIMIZED;
break;
case ZXDG_TOPLEVEL_V6_STATE_ACTIVATED:
impl->pending.state |= GDK_WINDOW_STATE_FOCUSED;
break;
case ZXDG_TOPLEVEL_V6_STATE_RESIZING:
break;
default:
/* Unknown state */
break;
}
}
impl->pending.width = width;
impl->pending.height = height;
}
static void
xdg_toplevel_close (void *data,
struct zxdg_toplevel_v6 *xdg_toplevel)
{
GdkWindow *window = GDK_WINDOW (data);
GdkDisplay *display;
GdkEvent *event;
GDK_NOTE (EVENTS,
g_message ("close %p", window));
event = gdk_event_new (GDK_DELETE);
event->any.window = g_object_ref (window);
event->any.send_event = TRUE;
display = gdk_window_get_display (window);
_gdk_wayland_display_deliver_event (display, event);
}
static const struct zxdg_toplevel_v6_listener xdg_toplevel_listener = {
xdg_toplevel_configure,
xdg_toplevel_close,
};
static void
gdk_wayland_window_create_xdg_toplevel (GdkWindow *window)
{
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (gdk_window_get_display (window));
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
const gchar *app_id;
GdkDisplay *display = gdk_window_get_display (window);
struct wl_output *fullscreen_output = NULL;
if (impl->initial_fullscreen_monitor >= 0 &&
impl->initial_fullscreen_monitor < gdk_display_get_n_monitors (display))
fullscreen_output = _gdk_wayland_screen_get_wl_output (gdk_window_get_screen (window), impl->initial_fullscreen_monitor);
impl->display_server.xdg_surface =
zxdg_shell_v6_get_xdg_surface (display_wayland->xdg_shell,
impl->display_server.wl_surface);
zxdg_surface_v6_add_listener (impl->display_server.xdg_surface,
&xdg_surface_listener,
window);
gdk_window_freeze_updates (window);
impl->display_server.xdg_toplevel =
zxdg_surface_v6_get_toplevel (impl->display_server.xdg_surface);
zxdg_toplevel_v6_add_listener (impl->display_server.xdg_toplevel,
&xdg_toplevel_listener,
window);
gdk_wayland_window_sync_parent (window, NULL);
gdk_wayland_window_sync_title (window);
if (window->state & GDK_WINDOW_STATE_MAXIMIZED)
zxdg_toplevel_v6_set_maximized (impl->display_server.xdg_toplevel);
if (window->state & GDK_WINDOW_STATE_FULLSCREEN)
zxdg_toplevel_v6_set_fullscreen (impl->display_server.xdg_toplevel,
fullscreen_output);
app_id = g_get_prgname ();
if (app_id == NULL)
app_id = gdk_get_program_class ();
zxdg_toplevel_v6_set_app_id (impl->display_server.xdg_toplevel, app_id);
maybe_set_gtk_surface_dbus_properties (window);
maybe_set_gtk_surface_modal (window);
if (impl->hint == GDK_WINDOW_TYPE_HINT_DIALOG)
_gdk_wayland_screen_add_orphan_dialog (window);
wl_surface_commit (impl->display_server.wl_surface);
}
static void
xdg_popup_configure (void *data,
struct zxdg_popup_v6 *xdg_popup,
int32_t x,
int32_t y,
int32_t width,
int32_t height)
{
GdkWindow *window = GDK_WINDOW (data);
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GdkRectangle flipped_rect;
GdkRectangle final_rect;
gboolean flipped_x;
gboolean flipped_y;
g_return_if_fail (impl->transient_for);
if (impl->position_method != POSITION_METHOD_MOVE_TO_RECT)
return;
calculate_moved_to_rect_result (window, x, y, width, height,
&flipped_rect,
&final_rect,
&flipped_x,
&flipped_y);
g_signal_emit_by_name (window,
"moved-to-rect",
&flipped_rect,
&final_rect,
flipped_x,
flipped_y);
}
static void
xdg_popup_done (void *data,
struct zxdg_popup_v6 *xdg_popup)
{
GdkWindow *window = GDK_WINDOW (data);
GDK_NOTE (EVENTS,
g_message ("done %p", window));
gdk_window_hide (window);
}
static const struct zxdg_popup_v6_listener xdg_popup_listener = {
xdg_popup_configure,
xdg_popup_done,
};
static enum zxdg_positioner_v6_anchor
rect_anchor_to_anchor (GdkGravity rect_anchor)
{
switch (rect_anchor)
{
case GDK_GRAVITY_NORTH_WEST:
case GDK_GRAVITY_STATIC:
return (ZXDG_POSITIONER_V6_ANCHOR_TOP |
ZXDG_POSITIONER_V6_ANCHOR_LEFT);
case GDK_GRAVITY_NORTH:
return ZXDG_POSITIONER_V6_ANCHOR_TOP;
case GDK_GRAVITY_NORTH_EAST:
return (ZXDG_POSITIONER_V6_ANCHOR_TOP |
ZXDG_POSITIONER_V6_ANCHOR_RIGHT);
case GDK_GRAVITY_WEST:
return ZXDG_POSITIONER_V6_ANCHOR_LEFT;
case GDK_GRAVITY_CENTER:
return ZXDG_POSITIONER_V6_ANCHOR_NONE;
case GDK_GRAVITY_EAST:
return ZXDG_POSITIONER_V6_ANCHOR_RIGHT;
case GDK_GRAVITY_SOUTH_WEST:
return (ZXDG_POSITIONER_V6_ANCHOR_BOTTOM |
ZXDG_POSITIONER_V6_ANCHOR_LEFT);
case GDK_GRAVITY_SOUTH:
return ZXDG_POSITIONER_V6_ANCHOR_BOTTOM;
case GDK_GRAVITY_SOUTH_EAST:
return (ZXDG_POSITIONER_V6_ANCHOR_BOTTOM |
ZXDG_POSITIONER_V6_ANCHOR_RIGHT);
default:
g_assert_not_reached ();
}
}
static enum zxdg_positioner_v6_gravity
window_anchor_to_gravity (GdkGravity rect_anchor)
{
switch (rect_anchor)
{
case GDK_GRAVITY_NORTH_WEST:
case GDK_GRAVITY_STATIC:
return (ZXDG_POSITIONER_V6_ANCHOR_BOTTOM |
ZXDG_POSITIONER_V6_ANCHOR_RIGHT);
case GDK_GRAVITY_NORTH:
return ZXDG_POSITIONER_V6_ANCHOR_BOTTOM;
case GDK_GRAVITY_NORTH_EAST:
return (ZXDG_POSITIONER_V6_ANCHOR_BOTTOM |
ZXDG_POSITIONER_V6_ANCHOR_LEFT);
case GDK_GRAVITY_WEST:
return ZXDG_POSITIONER_V6_ANCHOR_RIGHT;
case GDK_GRAVITY_CENTER:
return ZXDG_POSITIONER_V6_ANCHOR_NONE;
case GDK_GRAVITY_EAST:
return ZXDG_POSITIONER_V6_ANCHOR_LEFT;
case GDK_GRAVITY_SOUTH_WEST:
return (ZXDG_POSITIONER_V6_ANCHOR_TOP |
ZXDG_POSITIONER_V6_ANCHOR_RIGHT);
case GDK_GRAVITY_SOUTH:
return ZXDG_POSITIONER_V6_ANCHOR_TOP;
case GDK_GRAVITY_SOUTH_EAST:
return (ZXDG_POSITIONER_V6_ANCHOR_TOP |
ZXDG_POSITIONER_V6_ANCHOR_LEFT);
default:
g_assert_not_reached ();
}
}
static GdkWindow *
get_real_parent_and_translate (GdkWindow *window,
gint *x,
gint *y)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GdkWindow *parent = impl->transient_for;
while (parent &&
!gdk_window_has_native (parent) &&
gdk_window_get_parent (parent))
{
*x += parent->x;
*y += parent->y;
parent = gdk_window_get_parent (parent);
}
return parent;
}
static void
translate_to_real_parent_window_geometry (GdkWindow *window,
gint *x,
gint *y)
{
GdkWindow *parent;
parent = get_real_parent_and_translate (window, x, y);
*x -= parent->shadow_left;
*y -= parent->shadow_top;
}
static GdkWindow *
translate_from_real_parent_window_geometry (GdkWindow *window,
gint *x,
gint *y)
{
GdkWindow *parent;
gint dx = 0;
gint dy = 0;
parent = get_real_parent_and_translate (window, &dx, &dy);
*x -= dx - parent->shadow_left;
*y -= dy - parent->shadow_top;
return parent;
}
static void
calculate_popup_rect (GdkWindow *window,
GdkGravity rect_anchor,
GdkGravity window_anchor,
GdkRectangle *out_rect)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GdkRectangle geometry;
GdkRectangle anchor_rect;
int x = 0, y = 0;
gdk_wayland_window_get_window_geometry (window, &geometry);
anchor_rect = (GdkRectangle) {
.x = (impl->pending_move_to_rect.rect.x +
impl->pending_move_to_rect.rect_anchor_dx),
.y = (impl->pending_move_to_rect.rect.y +
impl->pending_move_to_rect.rect_anchor_dy),
.width = impl->pending_move_to_rect.rect.width,
.height = impl->pending_move_to_rect.rect.height
};
switch (rect_anchor)
{
case GDK_GRAVITY_STATIC:
case GDK_GRAVITY_NORTH_WEST:
x = anchor_rect.x;
y = anchor_rect.y;
break;
case GDK_GRAVITY_NORTH:
x = anchor_rect.x + (anchor_rect.width / 2);
y = anchor_rect.y;
break;
case GDK_GRAVITY_NORTH_EAST:
x = anchor_rect.x + anchor_rect.width;
y = anchor_rect.y;
break;
case GDK_GRAVITY_WEST:
x = anchor_rect.x;
y = anchor_rect.y + (anchor_rect.height / 2);
break;
case GDK_GRAVITY_CENTER:
x = anchor_rect.x + (anchor_rect.width / 2);
y = anchor_rect.y + (anchor_rect.height / 2);
break;
case GDK_GRAVITY_EAST:
x = anchor_rect.x + anchor_rect.width;
y = anchor_rect.y + (anchor_rect.height / 2);
break;
case GDK_GRAVITY_SOUTH_WEST:
x = anchor_rect.x;
y = anchor_rect.y + anchor_rect.height;
break;
case GDK_GRAVITY_SOUTH:
x = anchor_rect.x + (anchor_rect.width / 2);
y = anchor_rect.y + anchor_rect.height;
break;
case GDK_GRAVITY_SOUTH_EAST:
x = anchor_rect.x + anchor_rect.width;
y = anchor_rect.y + anchor_rect.height;
break;
}
switch (window_anchor)
{
case GDK_GRAVITY_STATIC:
case GDK_GRAVITY_NORTH_WEST:
x = x;
y = y;
break;
case GDK_GRAVITY_NORTH:
x -= geometry.width / 2;
y = y;
break;
case GDK_GRAVITY_NORTH_EAST:
x -= geometry.width;
y = y;
break;
case GDK_GRAVITY_WEST:
x = x;
y -= geometry.height / 2;
break;
case GDK_GRAVITY_CENTER:
x -= geometry.width / 2;
y -= geometry.height / 2;
break;
case GDK_GRAVITY_EAST:
x -= geometry.width;
y -= geometry.height / 2;
break;
case GDK_GRAVITY_SOUTH_WEST:
x = x;
y -= geometry.height;
break;
case GDK_GRAVITY_SOUTH:
x -= geometry.width / 2;
y -= geometry.height;
break;
case GDK_GRAVITY_SOUTH_EAST:
x -= geometry.width;
y -= geometry.height;
break;
}
*out_rect = (GdkRectangle) {
.x = x,
.y = y,
.width = geometry.width,
.height = geometry.height
};
}
static GdkGravity
flip_anchor_horizontally (GdkGravity anchor)
{
switch (anchor)
{
case GDK_GRAVITY_STATIC:
case GDK_GRAVITY_NORTH_WEST:
return GDK_GRAVITY_NORTH_EAST;
case GDK_GRAVITY_NORTH:
return GDK_GRAVITY_NORTH;
case GDK_GRAVITY_NORTH_EAST:
return GDK_GRAVITY_NORTH_WEST;
case GDK_GRAVITY_WEST:
return GDK_GRAVITY_EAST;
case GDK_GRAVITY_CENTER:
return GDK_GRAVITY_CENTER;
case GDK_GRAVITY_EAST:
return GDK_GRAVITY_WEST;
case GDK_GRAVITY_SOUTH_WEST:
return GDK_GRAVITY_SOUTH_EAST;
case GDK_GRAVITY_SOUTH:
return GDK_GRAVITY_SOUTH;
case GDK_GRAVITY_SOUTH_EAST:
return GDK_GRAVITY_SOUTH_WEST;
}
g_assert_not_reached ();
}
static GdkGravity
flip_anchor_vertically (GdkGravity anchor)
{
switch (anchor)
{
case GDK_GRAVITY_STATIC:
case GDK_GRAVITY_NORTH_WEST:
return GDK_GRAVITY_SOUTH_WEST;
case GDK_GRAVITY_NORTH:
return GDK_GRAVITY_SOUTH;
case GDK_GRAVITY_NORTH_EAST:
return GDK_GRAVITY_SOUTH_EAST;
case GDK_GRAVITY_WEST:
return GDK_GRAVITY_WEST;
case GDK_GRAVITY_CENTER:
return GDK_GRAVITY_CENTER;
case GDK_GRAVITY_EAST:
return GDK_GRAVITY_EAST;
case GDK_GRAVITY_SOUTH_WEST:
return GDK_GRAVITY_NORTH_WEST;
case GDK_GRAVITY_SOUTH:
return GDK_GRAVITY_NORTH;
case GDK_GRAVITY_SOUTH_EAST:
return GDK_GRAVITY_NORTH_EAST;
}
g_assert_not_reached ();
}
static void
calculate_moved_to_rect_result (GdkWindow *window,
int x,
int y,
int width,
int height,
GdkRectangle *flipped_rect,
GdkRectangle *final_rect,
gboolean *flipped_x,
gboolean *flipped_y)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GdkWindow *parent;
gint window_x, window_y;
gint window_width, window_height;
GdkRectangle best_rect;
parent = translate_from_real_parent_window_geometry (window, &x, &y);
*final_rect = (GdkRectangle) {
.x = x,
.y = y,
.width = width,
.height = height,
};
window_x = parent->x + x;
window_y = parent->y + y;
window_width = width + window->shadow_left + window->shadow_right;
window_height = height + window->shadow_top + window->shadow_bottom;
gdk_window_move_resize (window,
window_x, window_y,
window_width, window_height);
calculate_popup_rect (window,
impl->pending_move_to_rect.rect_anchor,
impl->pending_move_to_rect.window_anchor,
&best_rect);
*flipped_rect = best_rect;
if (x != best_rect.x &&
impl->pending_move_to_rect.anchor_hints & GDK_ANCHOR_FLIP_X)
{
GdkRectangle flipped_x_rect;
GdkGravity flipped_rect_anchor;
GdkGravity flipped_window_anchor;
flipped_rect_anchor =
flip_anchor_horizontally (impl->pending_move_to_rect.rect_anchor);
flipped_window_anchor =
flip_anchor_horizontally (impl->pending_move_to_rect.window_anchor),
calculate_popup_rect (window,
flipped_rect_anchor,
flipped_window_anchor,
&flipped_x_rect);
if (flipped_x_rect.x == x)
flipped_rect->x = x;
}
if (y != best_rect.y &&
impl->pending_move_to_rect.anchor_hints & GDK_ANCHOR_FLIP_Y)
{
GdkRectangle flipped_y_rect;
GdkGravity flipped_rect_anchor;
GdkGravity flipped_window_anchor;
flipped_rect_anchor =
flip_anchor_vertically (impl->pending_move_to_rect.rect_anchor);
flipped_window_anchor =
flip_anchor_vertically (impl->pending_move_to_rect.window_anchor),
calculate_popup_rect (window,
flipped_rect_anchor,
flipped_window_anchor,
&flipped_y_rect);
if (flipped_y_rect.y == y)
flipped_rect->y = y;
}
*flipped_x = flipped_rect->x != best_rect.x;
*flipped_y = flipped_rect->y != best_rect.y;
}
static struct zxdg_positioner_v6 *
create_dynamic_positioner (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GdkWaylandDisplay *display =
GDK_WAYLAND_DISPLAY (gdk_window_get_display (window));
struct zxdg_positioner_v6 *positioner;
GdkRectangle geometry;
enum zxdg_positioner_v6_anchor anchor;
enum zxdg_positioner_v6_anchor gravity;
uint32_t constraint_adjustment = ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_NONE;
gint real_anchor_rect_x, real_anchor_rect_y;
gint anchor_rect_width, anchor_rect_height;
positioner = zxdg_shell_v6_create_positioner (display->xdg_shell);
gdk_wayland_window_get_window_geometry (window, &geometry);
zxdg_positioner_v6_set_size (positioner, geometry.width, geometry.height);
real_anchor_rect_x = impl->pending_move_to_rect.rect.x;
real_anchor_rect_y = impl->pending_move_to_rect.rect.y;
translate_to_real_parent_window_geometry (window,
&real_anchor_rect_x,
&real_anchor_rect_y);
anchor_rect_width = impl->pending_move_to_rect.rect.width;
anchor_rect_height = impl->pending_move_to_rect.rect.height;
zxdg_positioner_v6_set_anchor_rect (positioner,
real_anchor_rect_x,
real_anchor_rect_y,
anchor_rect_width,
anchor_rect_height);
zxdg_positioner_v6_set_offset (positioner,
impl->pending_move_to_rect.rect_anchor_dx,
impl->pending_move_to_rect.rect_anchor_dy);
anchor = rect_anchor_to_anchor (impl->pending_move_to_rect.rect_anchor);
zxdg_positioner_v6_set_anchor (positioner, anchor);
gravity = window_anchor_to_gravity (impl->pending_move_to_rect.window_anchor);
zxdg_positioner_v6_set_gravity (positioner, gravity);
if (impl->pending_move_to_rect.anchor_hints & GDK_ANCHOR_FLIP_X)
constraint_adjustment |= ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_FLIP_X;
if (impl->pending_move_to_rect.anchor_hints & GDK_ANCHOR_FLIP_Y)
constraint_adjustment |= ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_FLIP_Y;
if (impl->pending_move_to_rect.anchor_hints & GDK_ANCHOR_SLIDE_X)
constraint_adjustment |= ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_SLIDE_X;
if (impl->pending_move_to_rect.anchor_hints & GDK_ANCHOR_SLIDE_Y)
constraint_adjustment |= ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_SLIDE_Y;
if (impl->pending_move_to_rect.anchor_hints & GDK_ANCHOR_RESIZE_X)
constraint_adjustment |= ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_RESIZE_X;
if (impl->pending_move_to_rect.anchor_hints & GDK_ANCHOR_RESIZE_Y)
constraint_adjustment |= ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_RESIZE_Y;
zxdg_positioner_v6_set_constraint_adjustment (positioner,
constraint_adjustment);
return positioner;
}
static struct zxdg_positioner_v6 *
create_simple_positioner (GdkWindow *window,
GdkWindow *parent)
{
GdkWaylandDisplay *display =
GDK_WAYLAND_DISPLAY (gdk_window_get_display (window));
struct zxdg_positioner_v6 *positioner;
GdkRectangle geometry;
GdkRectangle parent_geometry;
int parent_x, parent_y;
positioner = zxdg_shell_v6_create_positioner (display->xdg_shell);
gdk_wayland_window_get_window_geometry (window, &geometry);
zxdg_positioner_v6_set_size (positioner, geometry.width, geometry.height);
parent_x = parent->x;
parent_y = parent->y;
gdk_wayland_window_get_window_geometry (parent, &parent_geometry);
parent_x += parent_geometry.x;
parent_y += parent_geometry.y;
zxdg_positioner_v6_set_anchor_rect (positioner,
(window->x + geometry.x) - parent_x,
(window->y + geometry.y) - parent_y,
1, 1);
zxdg_positioner_v6_set_anchor (positioner,
(ZXDG_POSITIONER_V6_ANCHOR_TOP |
ZXDG_POSITIONER_V6_ANCHOR_LEFT));
zxdg_positioner_v6_set_gravity (positioner,
(ZXDG_POSITIONER_V6_GRAVITY_BOTTOM |
ZXDG_POSITIONER_V6_GRAVITY_RIGHT));
return positioner;
}
static void
gdk_wayland_window_create_xdg_popup (GdkWindow *window,
GdkWindow *parent,
struct wl_seat *seat)
{
GdkWaylandDisplay *display = GDK_WAYLAND_DISPLAY (gdk_window_get_display (window));
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GdkWindowImplWayland *parent_impl = GDK_WINDOW_IMPL_WAYLAND (parent->impl);
struct zxdg_positioner_v6 *positioner;
GdkSeat *gdk_seat;
guint32 serial;
if (!impl->display_server.wl_surface)
return;
if (!parent_impl->display_server.xdg_surface)
return;
if (impl->display_server.xdg_toplevel)
{
g_warning ("Can't map popup, already mapped as toplevel");
return;
}
if (impl->display_server.xdg_popup)
{
g_warning ("Can't map popup, already mapped");
return;
}
if ((display->current_popups &&
g_list_last (display->current_popups)->data != parent) ||
(!display->current_popups &&
!parent_impl->display_server.xdg_toplevel))
{
g_warning ("Tried to map a popup with a non-top most parent");
return;
}
impl->display_server.xdg_surface =
zxdg_shell_v6_get_xdg_surface (display->xdg_shell,
impl->display_server.wl_surface);
zxdg_surface_v6_add_listener (impl->display_server.xdg_surface,
&xdg_surface_listener,
window);
gdk_window_freeze_updates (window);
if (impl->position_method == POSITION_METHOD_MOVE_TO_RECT)
positioner = create_dynamic_positioner (window);
else
positioner = create_simple_positioner (window, parent);
impl->display_server.xdg_popup =
zxdg_surface_v6_get_popup (impl->display_server.xdg_surface,
parent_impl->display_server.xdg_surface,
positioner);
zxdg_popup_v6_add_listener (impl->display_server.xdg_popup,
&xdg_popup_listener,
window);
zxdg_positioner_v6_destroy (positioner);
if (seat)
{
gdk_seat = gdk_display_get_default_seat (GDK_DISPLAY (display));
serial = _gdk_wayland_seat_get_last_implicit_grab_serial (gdk_seat, NULL);
zxdg_popup_v6_grab (impl->display_server.xdg_popup, seat, serial);
}
wl_surface_commit (impl->display_server.wl_surface);
impl->popup_parent = parent;
display->current_popups = g_list_append (display->current_popups, window);
}
static struct wl_seat *
find_grab_input_seat (GdkWindow *window, GdkWindow *transient_for)
{
GdkWindow *attached_grab_window;
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GdkWindowImplWayland *tmp_impl;
/* Use the device that was used for the grab as the device for
* the popup window setup - so this relies on GTK+ taking the
* grab before showing the popup window.
*/
if (impl->grab_input_seat)
return gdk_wayland_seat_get_wl_seat (impl->grab_input_seat);
/* HACK: GtkMenu grabs a special window known as the "grab transfer window"
* and then transfers the grab over to the correct window later. Look for
* this window when taking the grab to know it's correct.
*
* See: associate_menu_grab_transfer_window in gtkmenu.c
*/
attached_grab_window = g_object_get_data (G_OBJECT (window), "gdk-attached-grab-window");
if (attached_grab_window)
{
tmp_impl = GDK_WINDOW_IMPL_WAYLAND (attached_grab_window->impl);
if (tmp_impl->grab_input_seat)
return gdk_wayland_seat_get_wl_seat (tmp_impl->grab_input_seat);
}
while (transient_for)
{
tmp_impl = GDK_WINDOW_IMPL_WAYLAND (transient_for->impl);
if (tmp_impl->grab_input_seat)
return gdk_wayland_seat_get_wl_seat (tmp_impl->grab_input_seat);
transient_for = tmp_impl->transient_for;
}
return NULL;
}
static gboolean
should_be_mapped (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
/* Don't map crazy temp that GTK+ uses for internal X11 shenanigans. */
if (window->window_type == GDK_WINDOW_TEMP && window->x < 0 && window->y < 0)
return FALSE;
if (impl->hint == GDK_WINDOW_TYPE_HINT_DND)
return FALSE;
return TRUE;
}
static gboolean
should_map_as_popup (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
/* Ideally, popup would be temp windows with a parent and grab */
if (GDK_WINDOW_TYPE (window) == GDK_WINDOW_TEMP)
{
/* If a temp window has a parent and a grab, we can use a popup */
if (impl->transient_for)
{
if (impl->grab_input_seat)
return TRUE;
}
else
g_message ("Window %p is a temporary window without parent, "
"application will not be able to position it on screen.",
window);
}
/* Yet we need to keep the window type hint tests for compatibility */
switch (impl->hint)
{
case GDK_WINDOW_TYPE_HINT_POPUP_MENU:
case GDK_WINDOW_TYPE_HINT_DROPDOWN_MENU:
case GDK_WINDOW_TYPE_HINT_COMBO:
return TRUE;
case GDK_WINDOW_TYPE_HINT_UTILITY:
if (GDK_WINDOW_TYPE (window) != GDK_WINDOW_TEMP)
return TRUE;
break;
default:
break;
}
return FALSE;
}
static gboolean
should_map_as_subsurface (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (GDK_WINDOW_TYPE (window) == GDK_WINDOW_SUBSURFACE)
return TRUE;
if (GDK_WINDOW_TYPE (window) != GDK_WINDOW_TEMP)
return FALSE;
/* if we want a popup, we do not want a subsurface */
if (should_map_as_popup (window))
return FALSE;
if (impl->transient_for)
{
GdkWindowImplWayland *impl_parent;
impl_parent = GDK_WINDOW_IMPL_WAYLAND (impl->transient_for->impl);
/* subsurface require that the parent is mapped */
if (impl_parent->mapped)
return TRUE;
else
g_warning ("Couldn't map window %p as susburface because its parent is not mapped.",
window);
}
return FALSE;
}
/* Get the window that can be used as a parent for a popup, i.e. a xdg_toplevel
* or xdg_popup. If the window is not, traverse up the transiency parents until
* we find one.
*/
static GdkWindow *
get_popup_parent (GdkWindow *window)
{
while (window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (impl->display_server.xdg_popup || impl->display_server.xdg_toplevel)
return window;
window = impl->transient_for;
}
return NULL;
}
static void
gdk_wayland_window_map (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GdkWindow *transient_for = NULL;
if (!should_be_mapped (window))
return;
if (impl->mapped || impl->use_custom_surface)
return;
if (should_map_as_subsurface (window))
{
if (impl->transient_for)
gdk_wayland_window_create_subsurface (window);
else
g_warning ("Couldn't map window %p as susburface yet because it doesn't have a parent",
window);
}
else if (should_map_as_popup (window))
{
gboolean create_fallback = FALSE;
struct wl_seat *grab_input_seat;
/* Popup menus can appear without a transient parent, which means they
* cannot be positioned properly on Wayland. This attempts to guess the
* surface they should be positioned with by finding the surface beneath
* the device that created the grab for the popup window.
*/
if (!impl->transient_for && impl->hint == GDK_WINDOW_TYPE_HINT_POPUP_MENU)
{
GdkDevice *grab_device = NULL;
/* The popup menu window is not the grabbed window. This may mean
* that a "transfer window" (see gtkmenu.c) is used, and we need
* to find that window to get the grab device. If so is the case
* the "transfer window" can be retrieved via the
* "gdk-attached-grab-window" associated data field.
*/
if (!impl->grab_input_seat)
{
GdkWindow *attached_grab_window =
g_object_get_data (G_OBJECT (window),
"gdk-attached-grab-window");
if (attached_grab_window)
{
GdkWindowImplWayland *attached_impl =
GDK_WINDOW_IMPL_WAYLAND (attached_grab_window->impl);
grab_device = gdk_seat_get_pointer (attached_impl->grab_input_seat);
transient_for =
gdk_device_get_window_at_position (grab_device,
NULL, NULL);
}
}
else
{
grab_device = gdk_seat_get_pointer (impl->grab_input_seat);
transient_for =
gdk_device_get_window_at_position (grab_device, NULL, NULL);
}
if (transient_for)
transient_for = get_popup_parent (gdk_window_get_toplevel (transient_for));
/* If the position was not explicitly set, start the popup at the
* position of the device that holds the grab.
*/
if (impl->position_method == POSITION_METHOD_NONE && grab_device)
gdk_window_get_device_position (transient_for, grab_device,
&window->x, &window->y, NULL);
}
else
{
transient_for = gdk_window_get_toplevel (impl->transient_for);
transient_for = get_popup_parent (transient_for);
}
if (!transient_for)
{
g_warning ("Couldn't map as window %p as popup because it doesn't have a parent",
window);
create_fallback = TRUE;
}
else
{
grab_input_seat = find_grab_input_seat (window, transient_for);
}
if (!create_fallback)
{
gdk_wayland_window_create_xdg_popup (window,
transient_for,
grab_input_seat);
}
else
{
gdk_wayland_window_create_xdg_toplevel (window);
}
}
else
{
gdk_wayland_window_create_xdg_toplevel (window);
}
impl->mapped = TRUE;
}
static void
gdk_wayland_window_show (GdkWindow *window,
gboolean already_mapped)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (!impl->display_server.wl_surface)
gdk_wayland_window_create_surface (window);
gdk_wayland_window_map (window);
_gdk_make_event (window, GDK_MAP, NULL, FALSE);
if (impl->staging_cairo_surface &&
_gdk_wayland_is_shm_surface (impl->staging_cairo_surface))
gdk_wayland_window_attach_image (window);
}
static void
unmap_subsurface (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GdkWindowImplWayland *parent_impl;
g_return_if_fail (impl->display_server.wl_subsurface);
g_return_if_fail (impl->transient_for);
parent_impl = GDK_WINDOW_IMPL_WAYLAND (impl->transient_for->impl);
wl_subsurface_destroy (impl->display_server.wl_subsurface);
if (impl->parent_surface_committed_handler)
{
g_signal_handler_disconnect (parent_impl,
impl->parent_surface_committed_handler);
impl->parent_surface_committed_handler = 0;
}
impl->display_server.wl_subsurface = NULL;
}
static void
unmap_popups_for_window (GdkWindow *window)
{
GdkWaylandDisplay *display_wayland;
GList *l;
display_wayland = GDK_WAYLAND_DISPLAY (gdk_window_get_display (window));
for (l = display_wayland->current_popups; l; l = l->next)
{
GdkWindow *popup = l->data;
GdkWindowImplWayland *popup_impl = GDK_WINDOW_IMPL_WAYLAND (popup->impl);
if (popup_impl->popup_parent == window)
{
g_warning ("Tried to unmap the parent of a popup");
gdk_window_hide (popup);
return;
}
}
}
static void
gdk_wayland_window_hide_surface (GdkWindow *window)
{
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (gdk_window_get_display (window));
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
unset_transient_for_exported (window);
unmap_popups_for_window (window);
if (impl->display_server.wl_surface)
{
if (impl->dummy_egl_surface)
{
eglDestroySurface (display_wayland->egl_display, impl->dummy_egl_surface);
impl->dummy_egl_surface = NULL;
}
if (impl->display_server.dummy_egl_window)
{
wl_egl_window_destroy (impl->display_server.dummy_egl_window);
impl->display_server.dummy_egl_window = NULL;
}
if (impl->egl_surface)
{
eglDestroySurface (display_wayland->egl_display, impl->egl_surface);
impl->egl_surface = NULL;
}
if (impl->display_server.egl_window)
{
wl_egl_window_destroy (impl->display_server.egl_window);
impl->display_server.egl_window = NULL;
}
if (impl->display_server.xdg_toplevel)
{
zxdg_toplevel_v6_destroy (impl->display_server.xdg_toplevel);
impl->display_server.xdg_toplevel = NULL;
}
else if (impl->display_server.xdg_popup)
{
zxdg_popup_v6_destroy (impl->display_server.xdg_popup);
impl->display_server.xdg_popup = NULL;
display_wayland->current_popups =
g_list_remove (display_wayland->current_popups, window);
}
if (impl->display_server.xdg_surface)
{
zxdg_surface_v6_destroy (impl->display_server.xdg_surface);
impl->display_server.xdg_surface = NULL;
if (!impl->initial_configure_received)
gdk_window_thaw_updates (window);
else
impl->initial_configure_received = FALSE;
}
if (impl->display_server.wl_subsurface)
unmap_subsurface (window);
if (impl->awaiting_frame)
{
GdkFrameClock *frame_clock;
impl->awaiting_frame = FALSE;
frame_clock = gdk_window_get_frame_clock (window);
if (frame_clock)
_gdk_frame_clock_thaw (frame_clock);
}
if (impl->display_server.gtk_surface)
{
gtk_surface1_destroy (impl->display_server.gtk_surface);
impl->display_server.gtk_surface = NULL;
}
wl_surface_destroy (impl->display_server.wl_surface);
impl->display_server.wl_surface = NULL;
g_slist_free (impl->display_server.outputs);
impl->display_server.outputs = NULL;
if (impl->hint == GDK_WINDOW_TYPE_HINT_DIALOG && !impl->transient_for)
display_wayland->orphan_dialogs =
g_list_remove (display_wayland->orphan_dialogs, window);
}
_gdk_wayland_window_clear_saved_size (window);
impl->pending_commit = FALSE;
impl->mapped = FALSE;
}
static void
gdk_wayland_window_hide (GdkWindow *window)
{
gdk_wayland_window_hide_surface (window);
_gdk_window_clear_update_area (window);
}
static void
gdk_window_wayland_withdraw (GdkWindow *window)
{
if (!window->destroyed)
{
if (GDK_WINDOW_IS_MAPPED (window))
gdk_synthesize_window_state (window, 0, GDK_WINDOW_STATE_WITHDRAWN);
g_assert (!GDK_WINDOW_IS_MAPPED (window));
gdk_wayland_window_hide_surface (window);
}
}
static void
gdk_window_wayland_set_events (GdkWindow *window,
GdkEventMask event_mask)
{
GDK_WINDOW (window)->event_mask = event_mask;
}
static GdkEventMask
gdk_window_wayland_get_events (GdkWindow *window)
{
if (GDK_WINDOW_DESTROYED (window))
return 0;
else
return GDK_WINDOW (window)->event_mask;
}
static void
gdk_window_wayland_raise (GdkWindow *window)
{
}
static void
gdk_window_wayland_lower (GdkWindow *window)
{
}
static void
gdk_window_wayland_restack_under (GdkWindow *window,
GList *native_siblings)
{
}
static void
gdk_window_wayland_restack_toplevel (GdkWindow *window,
GdkWindow *sibling,
gboolean above)
{
}
static void
gdk_window_request_transient_parent_commit (GdkWindow *window)
{
GdkWindowImplWayland *window_impl, *impl;
GdkFrameClock *frame_clock;
window_impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (!window_impl->transient_for)
return;
impl = GDK_WINDOW_IMPL_WAYLAND (window_impl->transient_for->impl);
if (!impl->display_server.wl_surface || impl->pending_commit)
return;
frame_clock = gdk_window_get_frame_clock (window_impl->transient_for);
if (!frame_clock)
return;
impl->pending_commit = TRUE;
gdk_frame_clock_request_phase (frame_clock,
GDK_FRAME_CLOCK_PHASE_AFTER_PAINT);
}
static void
gdk_window_wayland_move_resize (GdkWindow *window,
gboolean with_move,
gint x,
gint y,
gint width,
gint height)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (with_move)
{
/* Each toplevel has in its own "root" coordinate system */
if (GDK_WINDOW_TYPE (window) != GDK_WINDOW_TOPLEVEL)
{
window->x = x;
window->y = y;
impl->position_method = POSITION_METHOD_MOVE_RESIZE;
if (impl->display_server.wl_subsurface)
{
wl_subsurface_set_position (impl->display_server.wl_subsurface, x, y);
gdk_window_request_transient_parent_commit (window);
}
}
}
/* If this function is called with width and height = -1 then that means
* just move the window - don't update its size
*/
if (width > 0 && height > 0)
gdk_wayland_window_maybe_configure (window, width, height, impl->scale);
}
static void
gdk_window_wayland_move_to_rect (GdkWindow *window,
const GdkRectangle *rect,
GdkGravity rect_anchor,
GdkGravity window_anchor,
GdkAnchorHints anchor_hints,
gint rect_anchor_dx,
gint rect_anchor_dy)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
impl->pending_move_to_rect.rect = *rect;
impl->pending_move_to_rect.rect_anchor = rect_anchor;
impl->pending_move_to_rect.window_anchor = window_anchor;
impl->pending_move_to_rect.anchor_hints = anchor_hints;
impl->pending_move_to_rect.rect_anchor_dx = rect_anchor_dx;
impl->pending_move_to_rect.rect_anchor_dy = rect_anchor_dy;
impl->position_method = POSITION_METHOD_MOVE_TO_RECT;
}
static gboolean
gdk_window_wayland_reparent (GdkWindow *window,
GdkWindow *new_parent,
gint x,
gint y)
{
return FALSE;
}
static void
gdk_window_wayland_set_device_cursor (GdkWindow *window,
GdkDevice *device,
GdkCursor *cursor)
{
g_return_if_fail (GDK_IS_WINDOW (window));
g_return_if_fail (GDK_IS_DEVICE (device));
if (!GDK_WINDOW_DESTROYED (window))
GDK_DEVICE_GET_CLASS (device)->set_window_cursor (device, window, cursor);
}
static void
gdk_window_wayland_get_geometry (GdkWindow *window,
gint *x,
gint *y,
gint *width,
gint *height)
{
if (!GDK_WINDOW_DESTROYED (window))
{
if (x)
*x = window->x;
if (y)
*y = window->y;
if (width)
*width = window->width;
if (height)
*height = window->height;
}
}
static void
gdk_window_wayland_get_root_coords (GdkWindow *window,
gint x,
gint y,
gint *root_x,
gint *root_y)
{
/*
* Wayland does not have a global coordinate space shared between surfaces. In
* fact, for regular toplevels, we have no idea where our surfaces are
* positioned, relatively.
*
* However, there are some cases like popups and subsurfaces where we do have
* some amount of control over the placement of our window, and we can
* semi-accurately control the x/y position of these windows, if they are
* relative to another surface.
*
* To pretend we have something called a root coordinate space, assume all
* parent-less windows are positioned in (0, 0), and all relative positioned
* popups and subsurfaces are placed within this fake root coordinate space.
*
* For example a 200x200 large toplevel window will have the position (0, 0).
* If a popup positioned in the middle of the toplevel will have the fake
* position (100,100). Furthermore, if a positioned is placed in the middle
* that popup, will have the fake position (150,150), even though it has the
* relative position (50,50). These three windows would make up one single
* fake root coordinate space.
*/
if (root_x)
*root_x = window->x + x;
if (root_y)
*root_y = window->y + y;
}
static gboolean
gdk_window_wayland_get_device_state (GdkWindow *window,
GdkDevice *device,
gdouble *x,
gdouble *y,
GdkModifierType *mask)
{
gboolean return_val;
g_return_val_if_fail (window == NULL || GDK_IS_WINDOW (window), FALSE);
return_val = TRUE;
if (!GDK_WINDOW_DESTROYED (window))
{
GdkWindow *child;
GDK_DEVICE_GET_CLASS (device)->query_state (device, window,
NULL, &child,
NULL, NULL,
x, y, mask);
return_val = (child != NULL);
}
return return_val;
}
static void
gdk_window_wayland_shape_combine_region (GdkWindow *window,
const cairo_region_t *shape_region,
gint offset_x,
gint offset_y)
{
}
static void
gdk_window_wayland_input_shape_combine_region (GdkWindow *window,
const cairo_region_t *shape_region,
gint offset_x,
gint offset_y)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (GDK_WINDOW_DESTROYED (window))
return;
g_clear_pointer (&impl->input_region, cairo_region_destroy);
if (shape_region)
{
impl->input_region = cairo_region_copy (shape_region);
cairo_region_translate (impl->input_region, offset_x, offset_y);
}
impl->input_region_dirty = TRUE;
}
static void
gdk_wayland_window_destroy (GdkWindow *window,
gboolean recursing,
gboolean foreign_destroy)
{
g_return_if_fail (GDK_IS_WINDOW (window));
/* Wayland windows can't be externally destroyed; we may possibly
* eventually want to use this path at display close-down
*/
g_return_if_fail (!foreign_destroy);
gdk_wayland_window_hide_surface (window);
drop_cairo_surfaces (window);
}
static void
gdk_window_wayland_destroy_foreign (GdkWindow *window)
{
}
static cairo_region_t *
gdk_wayland_window_get_shape (GdkWindow *window)
{
return NULL;
}
static cairo_region_t *
gdk_wayland_window_get_input_shape (GdkWindow *window)
{
return NULL;
}
static void
gdk_wayland_window_focus (GdkWindow *window,
guint32 timestamp)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (!impl->display_server.gtk_surface)
return;
/* We didn't have an event to fetch a time from, meaning we have nothing valid
* to send. This should rather be translated to a 'needs-attention' request or
* something.
*/
if (timestamp == GDK_CURRENT_TIME)
return;
gtk_surface1_present (impl->display_server.gtk_surface, timestamp);
}
static void
gdk_wayland_window_set_type_hint (GdkWindow *window,
GdkWindowTypeHint hint)
{
GdkWindowImplWayland *impl;
impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (GDK_WINDOW_DESTROYED (window))
return;
impl->hint = hint;
}
static GdkWindowTypeHint
gdk_wayland_window_get_type_hint (GdkWindow *window)
{
GdkWindowImplWayland *impl;
if (GDK_WINDOW_DESTROYED (window))
return GDK_WINDOW_TYPE_HINT_NORMAL;
impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
return impl->hint;
}
static void
gtk_surface_configure (void *data,
struct gtk_surface1 *gtk_surface,
struct wl_array *states)
{
GdkWindow *window = GDK_WINDOW (data);
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GdkWindowState new_state = 0;
uint32_t *p;
wl_array_for_each (p, states)
{
uint32_t state = *p;
switch (state)
{
case GTK_SURFACE1_STATE_TILED:
new_state |= GDK_WINDOW_STATE_TILED;
break;
default:
/* Unknown state */
break;
}
}
impl->pending.state |= new_state;
}
static const struct gtk_surface1_listener gtk_surface_listener = {
gtk_surface_configure
};
static void
gdk_wayland_window_init_gtk_surface (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GdkWaylandDisplay *display =
GDK_WAYLAND_DISPLAY (gdk_window_get_display (window));
if (impl->display_server.gtk_surface != NULL)
return;
if (impl->display_server.xdg_surface == NULL)
return;
if (display->gtk_shell == NULL)
return;
impl->display_server.gtk_surface =
gtk_shell1_get_gtk_surface (display->gtk_shell,
impl->display_server.wl_surface);
gdk_window_set_geometry_hints (window,
&impl->geometry_hints,
impl->geometry_mask);
gtk_surface1_add_listener (impl->display_server.gtk_surface,
&gtk_surface_listener,
window);
}
static void
maybe_set_gtk_surface_modal (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
gdk_wayland_window_init_gtk_surface (window);
if (impl->display_server.gtk_surface == NULL)
return;
if (window->modal_hint)
gtk_surface1_set_modal (impl->display_server.gtk_surface);
else
gtk_surface1_unset_modal (impl->display_server.gtk_surface);
}
static void
gdk_wayland_window_set_modal_hint (GdkWindow *window,
gboolean modal)
{
window->modal_hint = modal;
maybe_set_gtk_surface_modal (window);
}
static void
gdk_wayland_window_set_skip_taskbar_hint (GdkWindow *window,
gboolean skips_taskbar)
{
}
static void
gdk_wayland_window_set_skip_pager_hint (GdkWindow *window,
gboolean skips_pager)
{
}
static void
gdk_wayland_window_set_urgency_hint (GdkWindow *window,
gboolean urgent)
{
}
static void
gdk_wayland_window_set_geometry_hints (GdkWindow *window,
const GdkGeometry *geometry,
GdkWindowHints geom_mask)
{
GdkWindowImplWayland *impl;
int width, height;
if (GDK_WINDOW_DESTROYED (window) ||
!WINDOW_IS_TOPLEVEL_OR_FOREIGN (window))
return;
impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
impl->geometry_hints = *geometry;
impl->geometry_mask = geom_mask;
if (!impl->display_server.xdg_toplevel)
return;
if (geom_mask & GDK_HINT_MIN_SIZE)
{
width = MAX (0, geometry->min_width - (impl->margin_left + impl->margin_right));
height = MAX (0, geometry->min_height - (impl->margin_top + impl->margin_bottom));
}
else
{
width = 0;
height = 0;
}
zxdg_toplevel_v6_set_min_size (impl->display_server.xdg_toplevel, width, height);
if (geom_mask & GDK_HINT_MAX_SIZE)
{
width = MAX (0, geometry->max_width - (impl->margin_left + impl->margin_right));
height = MAX (0, geometry->max_height - (impl->margin_top + impl->margin_bottom));
}
else
{
width = 0;
height = 0;
}
zxdg_toplevel_v6_set_max_size (impl->display_server.xdg_toplevel, width, height);
}
static void
gdk_wayland_window_set_title (GdkWindow *window,
const gchar *title)
{
GdkWindowImplWayland *impl;
const char *end;
g_return_if_fail (title != NULL);
if (GDK_WINDOW_DESTROYED (window))
return;
impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (g_strcmp0 (impl->title, title) == 0)
return;
g_free (impl->title);
g_utf8_validate (title, MAX_WL_BUFFER_SIZE, &end);
impl->title = g_malloc (end - title + 1);
memcpy (impl->title, title, end - title);
impl->title[end - title] = '\0';
gdk_wayland_window_sync_title (window);
}
static void
gdk_wayland_window_set_role (GdkWindow *window,
const gchar *role)
{
}
static void
gdk_wayland_window_set_startup_id (GdkWindow *window,
const gchar *startup_id)
{
}
static gboolean
check_transient_for_loop (GdkWindow *window,
GdkWindow *parent)
{
while (parent)
{
GdkWindowImplWayland *impl;
if (!GDK_IS_WINDOW_IMPL_WAYLAND(parent->impl))
return FALSE;
impl = GDK_WINDOW_IMPL_WAYLAND (parent->impl);
if (impl->transient_for == window)
return TRUE;
parent = impl->transient_for;
}
return FALSE;
}
static void
gdk_wayland_window_set_transient_for (GdkWindow *window,
GdkWindow *parent)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GdkWaylandDisplay *display_wayland =
GDK_WAYLAND_DISPLAY (gdk_window_get_display (window));
GdkWindow *previous_parent;
g_assert (parent == NULL ||
gdk_window_get_display (window) == gdk_window_get_display (parent));
if (check_transient_for_loop (window, parent))
{
g_warning ("Setting %p transient for %p would create a loop", window, parent);
return;
}
unset_transient_for_exported (window);
if (impl->display_server.wl_subsurface)
unmap_subsurface (window);
previous_parent = impl->transient_for;
impl->transient_for = parent;
if (impl->hint == GDK_WINDOW_TYPE_HINT_DIALOG)
{
if (!parent)
_gdk_wayland_screen_add_orphan_dialog (window);
else if (!previous_parent)
display_wayland->orphan_dialogs =
g_list_remove (display_wayland->orphan_dialogs, window);
}
gdk_wayland_window_sync_parent (window, NULL);
if (should_map_as_subsurface (window) &&
parent && gdk_window_is_visible (window))
gdk_wayland_window_create_subsurface (window);
}
static void
gdk_wayland_window_get_frame_extents (GdkWindow *window,
GdkRectangle *rect)
{
*rect = (GdkRectangle) {
.x = window->x,
.y = window->y,
.width = window->width,
.height = window->height
};
}
static void
gdk_wayland_window_set_override_redirect (GdkWindow *window,
gboolean override_redirect)
{
}
static void
gdk_wayland_window_set_accept_focus (GdkWindow *window,
gboolean accept_focus)
{
}
static void
gdk_wayland_window_set_focus_on_map (GdkWindow *window,
gboolean focus_on_map)
{
}
static void
gdk_wayland_window_set_icon_list (GdkWindow *window,
GList *pixbufs)
{
}
static void
gdk_wayland_window_set_icon_name (GdkWindow *window,
const gchar *name)
{
if (GDK_WINDOW_DESTROYED (window))
return;
}
static void
gdk_wayland_window_iconify (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (GDK_WINDOW_DESTROYED (window) ||
!WINDOW_IS_TOPLEVEL_OR_FOREIGN (window))
return;
if (!impl->display_server.xdg_toplevel)
return;
zxdg_toplevel_v6_set_minimized (impl->display_server.xdg_toplevel);
}
static void
gdk_wayland_window_deiconify (GdkWindow *window)
{
if (GDK_WINDOW_DESTROYED (window) ||
!WINDOW_IS_TOPLEVEL_OR_FOREIGN (window))
return;
if (GDK_WINDOW_IS_MAPPED (window))
gdk_window_show (window);
else
/* Flip our client side flag, the real work happens on map. */
gdk_synthesize_window_state (window, GDK_WINDOW_STATE_ICONIFIED, 0);
}
static void
gdk_wayland_window_stick (GdkWindow *window)
{
}
static void
gdk_wayland_window_unstick (GdkWindow *window)
{
}
static void
gdk_wayland_window_maximize (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (GDK_WINDOW_DESTROYED (window))
return;
_gdk_wayland_window_save_size (window);
if (impl->display_server.xdg_toplevel)
zxdg_toplevel_v6_set_maximized (impl->display_server.xdg_toplevel);
else
gdk_synthesize_window_state (window, 0, GDK_WINDOW_STATE_MAXIMIZED);
}
static void
gdk_wayland_window_unmaximize (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (GDK_WINDOW_DESTROYED (window))
return;
if (impl->display_server.xdg_toplevel)
zxdg_toplevel_v6_unset_maximized (impl->display_server.xdg_toplevel);
else
gdk_synthesize_window_state (window, GDK_WINDOW_STATE_MAXIMIZED, 0);
}
static void
gdk_wayland_window_fullscreen_on_monitor (GdkWindow *window, gint monitor)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GdkScreen *screen = gdk_window_get_screen (window);
struct wl_output *fullscreen_output =
_gdk_wayland_screen_get_wl_output (screen, monitor);
if (GDK_WINDOW_DESTROYED (window))
return;
_gdk_wayland_window_save_size (window);
if (impl->display_server.xdg_toplevel)
{
zxdg_toplevel_v6_set_fullscreen (impl->display_server.xdg_toplevel,
fullscreen_output);
}
else
{
gdk_synthesize_window_state (window, 0, GDK_WINDOW_STATE_FULLSCREEN);
impl->initial_fullscreen_monitor = monitor;
}
}
static void
gdk_wayland_window_fullscreen (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (GDK_WINDOW_DESTROYED (window))
return;
impl->initial_fullscreen_monitor = -1;
_gdk_wayland_window_save_size (window);
if (impl->display_server.xdg_toplevel)
zxdg_toplevel_v6_set_fullscreen (impl->display_server.xdg_toplevel, NULL);
else
gdk_synthesize_window_state (window, 0, GDK_WINDOW_STATE_FULLSCREEN);
}
static void
gdk_wayland_window_unfullscreen (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (GDK_WINDOW_DESTROYED (window))
return;
impl->initial_fullscreen_monitor = -1;
if (impl->display_server.xdg_toplevel)
zxdg_toplevel_v6_unset_fullscreen (impl->display_server.xdg_toplevel);
else
gdk_synthesize_window_state (window, GDK_WINDOW_STATE_FULLSCREEN, 0);
}
static void
gdk_wayland_window_set_keep_above (GdkWindow *window, gboolean setting)
{
}
static void
gdk_wayland_window_set_keep_below (GdkWindow *window, gboolean setting)
{
}
static GdkWindow *
gdk_wayland_window_get_group (GdkWindow *window)
{
return NULL;
}
static void
gdk_wayland_window_set_group (GdkWindow *window,
GdkWindow *leader)
{
}
static void
gdk_wayland_window_set_decorations (GdkWindow *window,
GdkWMDecoration decorations)
{
}
static gboolean
gdk_wayland_window_get_decorations (GdkWindow *window,
GdkWMDecoration *decorations)
{
return FALSE;
}
static void
gdk_wayland_window_set_functions (GdkWindow *window,
GdkWMFunction functions)
{
}
static void
gdk_wayland_window_begin_resize_drag (GdkWindow *window,
GdkWindowEdge edge,
GdkDevice *device,
gint button,
gint root_x,
gint root_y,
guint32 timestamp)
{
GdkWindowImplWayland *impl;
GdkEventSequence *sequence;
uint32_t resize_edges, serial;
if (GDK_WINDOW_DESTROYED (window) ||
!WINDOW_IS_TOPLEVEL_OR_FOREIGN (window))
return;
switch (edge)
{
case GDK_WINDOW_EDGE_NORTH_WEST:
resize_edges = ZXDG_TOPLEVEL_V6_RESIZE_EDGE_TOP_LEFT;
break;
case GDK_WINDOW_EDGE_NORTH:
resize_edges = ZXDG_TOPLEVEL_V6_RESIZE_EDGE_TOP;
break;
case GDK_WINDOW_EDGE_NORTH_EAST:
resize_edges = ZXDG_TOPLEVEL_V6_RESIZE_EDGE_TOP_RIGHT;
break;
case GDK_WINDOW_EDGE_WEST:
resize_edges = ZXDG_TOPLEVEL_V6_RESIZE_EDGE_LEFT;
break;
case GDK_WINDOW_EDGE_EAST:
resize_edges = ZXDG_TOPLEVEL_V6_RESIZE_EDGE_RIGHT;
break;
case GDK_WINDOW_EDGE_SOUTH_WEST:
resize_edges = ZXDG_TOPLEVEL_V6_RESIZE_EDGE_BOTTOM_LEFT;
break;
case GDK_WINDOW_EDGE_SOUTH:
resize_edges = ZXDG_TOPLEVEL_V6_RESIZE_EDGE_BOTTOM;
break;
case GDK_WINDOW_EDGE_SOUTH_EAST:
resize_edges = ZXDG_TOPLEVEL_V6_RESIZE_EDGE_BOTTOM_RIGHT;
break;
default:
g_warning ("gdk_window_begin_resize_drag: bad resize edge %d!", edge);
return;
}
impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (!impl->display_server.xdg_surface)
return;
serial = _gdk_wayland_seat_get_last_implicit_grab_serial (gdk_device_get_seat (device),
&sequence);
zxdg_toplevel_v6_resize (impl->display_server.xdg_toplevel,
gdk_wayland_device_get_wl_seat (device),
serial, resize_edges);
if (sequence)
gdk_wayland_device_unset_touch_grab (device, sequence);
/* This is needed since Wayland will absorb all the pointer events after the
* above function - FIXME: Is this always safe..?
*/
gdk_seat_ungrab (gdk_device_get_seat (device));
}
static void
gdk_wayland_window_begin_move_drag (GdkWindow *window,
GdkDevice *device,
gint button,
gint root_x,
gint root_y,
guint32 timestamp)
{
GdkWindowImplWayland *impl;
GdkEventSequence *sequence;
uint32_t serial;
if (GDK_WINDOW_DESTROYED (window) ||
!WINDOW_IS_TOPLEVEL (window))
return;
impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (!impl->display_server.xdg_surface)
return;
serial = _gdk_wayland_seat_get_last_implicit_grab_serial (gdk_device_get_seat (device),
&sequence);
zxdg_toplevel_v6_move (impl->display_server.xdg_toplevel,
gdk_wayland_device_get_wl_seat (device),
serial);
if (sequence)
gdk_wayland_device_unset_touch_grab (device, sequence);
/* This is needed since Wayland will absorb all the pointer events after the
* above function - FIXME: Is this always safe..?
*/
gdk_seat_ungrab (gdk_device_get_seat (device));
}
static void
gdk_wayland_window_set_opacity (GdkWindow *window,
gdouble opacity)
{
}
static void
gdk_wayland_window_destroy_notify (GdkWindow *window)
{
if (!GDK_WINDOW_DESTROYED (window))
{
if (GDK_WINDOW_TYPE (window) != GDK_WINDOW_FOREIGN)
g_warning ("GdkWindow %p unexpectedly destroyed", window);
_gdk_window_destroy (window, TRUE);
}
g_object_unref (window);
}
static void
gdk_wayland_window_sync_rendering (GdkWindow *window)
{
}
static gboolean
gdk_wayland_window_simulate_key (GdkWindow *window,
gint x,
gint y,
guint keyval,
GdkModifierType modifiers,
GdkEventType key_pressrelease)
{
return FALSE;
}
static gboolean
gdk_wayland_window_simulate_button (GdkWindow *window,
gint x,
gint y,
guint button,
GdkModifierType modifiers,
GdkEventType button_pressrelease)
{
return FALSE;
}
static gboolean
gdk_wayland_window_get_property (GdkWindow *window,
GdkAtom property,
GdkAtom type,
gulong offset,
gulong length,
gint pdelete,
GdkAtom *actual_property_type,
gint *actual_format_type,
gint *actual_length,
guchar **data)
{
return FALSE;
}
static void
gdk_wayland_window_change_property (GdkWindow *window,
GdkAtom property,
GdkAtom type,
gint format,
GdkPropMode mode,
const guchar *data,
gint nelements)
{
if (property == gdk_atom_intern_static_string ("GDK_SELECTION"))
gdk_wayland_selection_store (window, type, mode, data, nelements * (format / 8));
}
static void
gdk_wayland_window_delete_property (GdkWindow *window,
GdkAtom property)
{
}
static gint
gdk_wayland_window_get_scale_factor (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (GDK_WINDOW_DESTROYED (window))
return 1;
return impl->scale;
}
static void
gdk_wayland_window_set_opaque_region (GdkWindow *window,
cairo_region_t *region)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (GDK_WINDOW_DESTROYED (window))
return;
g_clear_pointer (&impl->opaque_region, cairo_region_destroy);
impl->opaque_region = cairo_region_reference (region);
impl->opaque_region_dirty = TRUE;
}
static void
gdk_wayland_window_set_shadow_width (GdkWindow *window,
int left,
int right,
int top,
int bottom)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
gint new_width, new_height;
if (GDK_WINDOW_DESTROYED (window))
return;
/* Reconfigure window to keep the same window geometry */
new_width = window->width -
(impl->margin_left + impl->margin_right) + (left + right);
new_height = window->height -
(impl->margin_top + impl->margin_bottom) + (top + bottom);
gdk_wayland_window_maybe_configure (window, new_width, new_height, impl->scale);
impl->margin_left = left;
impl->margin_right = right;
impl->margin_top = top;
impl->margin_bottom = bottom;
}
static gboolean
gdk_wayland_window_show_window_menu (GdkWindow *window,
GdkEvent *event)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
struct wl_seat *seat;
GdkWaylandDevice *device;
double x, y;
uint32_t serial;
switch (event->type)
{
case GDK_BUTTON_PRESS:
case GDK_BUTTON_RELEASE:
case GDK_TOUCH_BEGIN:
case GDK_TOUCH_END:
break;
default:
return FALSE;
}
if (!impl->display_server.xdg_surface)
return FALSE;
device = GDK_WAYLAND_DEVICE (gdk_event_get_device (event));
seat = gdk_wayland_device_get_wl_seat (GDK_DEVICE (device));
gdk_event_get_coords (event, &x, &y);
serial = _gdk_wayland_device_get_implicit_grab_serial (device, event);
zxdg_toplevel_v6_show_window_menu (impl->display_server.xdg_toplevel,
seat, serial, x, y);
return TRUE;
}
static void
_gdk_window_impl_wayland_class_init (GdkWindowImplWaylandClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GdkWindowImplClass *impl_class = GDK_WINDOW_IMPL_CLASS (klass);
object_class->finalize = gdk_window_impl_wayland_finalize;
impl_class->ref_cairo_surface = gdk_wayland_window_ref_cairo_surface;
impl_class->create_similar_image_surface = gdk_wayland_window_create_similar_image_surface;
impl_class->show = gdk_wayland_window_show;
impl_class->hide = gdk_wayland_window_hide;
impl_class->withdraw = gdk_window_wayland_withdraw;
impl_class->set_events = gdk_window_wayland_set_events;
impl_class->get_events = gdk_window_wayland_get_events;
impl_class->raise = gdk_window_wayland_raise;
impl_class->lower = gdk_window_wayland_lower;
impl_class->restack_under = gdk_window_wayland_restack_under;
impl_class->restack_toplevel = gdk_window_wayland_restack_toplevel;
impl_class->move_resize = gdk_window_wayland_move_resize;
impl_class->move_to_rect = gdk_window_wayland_move_to_rect;
impl_class->reparent = gdk_window_wayland_reparent;
impl_class->set_device_cursor = gdk_window_wayland_set_device_cursor;
impl_class->get_geometry = gdk_window_wayland_get_geometry;
impl_class->get_root_coords = gdk_window_wayland_get_root_coords;
impl_class->get_device_state = gdk_window_wayland_get_device_state;
impl_class->shape_combine_region = gdk_window_wayland_shape_combine_region;
impl_class->input_shape_combine_region = gdk_window_wayland_input_shape_combine_region;
impl_class->destroy = gdk_wayland_window_destroy;
impl_class->destroy_foreign = gdk_window_wayland_destroy_foreign;
impl_class->get_shape = gdk_wayland_window_get_shape;
impl_class->get_input_shape = gdk_wayland_window_get_input_shape;
impl_class->begin_paint = gdk_window_impl_wayland_begin_paint;
impl_class->end_paint = gdk_window_impl_wayland_end_paint;
impl_class->beep = gdk_window_impl_wayland_beep;
impl_class->focus = gdk_wayland_window_focus;
impl_class->set_type_hint = gdk_wayland_window_set_type_hint;
impl_class->get_type_hint = gdk_wayland_window_get_type_hint;
impl_class->set_modal_hint = gdk_wayland_window_set_modal_hint;
impl_class->set_skip_taskbar_hint = gdk_wayland_window_set_skip_taskbar_hint;
impl_class->set_skip_pager_hint = gdk_wayland_window_set_skip_pager_hint;
impl_class->set_urgency_hint = gdk_wayland_window_set_urgency_hint;
impl_class->set_geometry_hints = gdk_wayland_window_set_geometry_hints;
impl_class->set_title = gdk_wayland_window_set_title;
impl_class->set_role = gdk_wayland_window_set_role;
impl_class->set_startup_id = gdk_wayland_window_set_startup_id;
impl_class->set_transient_for = gdk_wayland_window_set_transient_for;
impl_class->get_frame_extents = gdk_wayland_window_get_frame_extents;
impl_class->set_override_redirect = gdk_wayland_window_set_override_redirect;
impl_class->set_accept_focus = gdk_wayland_window_set_accept_focus;
impl_class->set_focus_on_map = gdk_wayland_window_set_focus_on_map;
impl_class->set_icon_list = gdk_wayland_window_set_icon_list;
impl_class->set_icon_name = gdk_wayland_window_set_icon_name;
impl_class->iconify = gdk_wayland_window_iconify;
impl_class->deiconify = gdk_wayland_window_deiconify;
impl_class->stick = gdk_wayland_window_stick;
impl_class->unstick = gdk_wayland_window_unstick;
impl_class->maximize = gdk_wayland_window_maximize;
impl_class->unmaximize = gdk_wayland_window_unmaximize;
impl_class->fullscreen = gdk_wayland_window_fullscreen;
impl_class->fullscreen_on_monitor = gdk_wayland_window_fullscreen_on_monitor;
impl_class->unfullscreen = gdk_wayland_window_unfullscreen;
impl_class->set_keep_above = gdk_wayland_window_set_keep_above;
impl_class->set_keep_below = gdk_wayland_window_set_keep_below;
impl_class->get_group = gdk_wayland_window_get_group;
impl_class->set_group = gdk_wayland_window_set_group;
impl_class->set_decorations = gdk_wayland_window_set_decorations;
impl_class->get_decorations = gdk_wayland_window_get_decorations;
impl_class->set_functions = gdk_wayland_window_set_functions;
impl_class->begin_resize_drag = gdk_wayland_window_begin_resize_drag;
impl_class->begin_move_drag = gdk_wayland_window_begin_move_drag;
impl_class->set_opacity = gdk_wayland_window_set_opacity;
impl_class->destroy_notify = gdk_wayland_window_destroy_notify;
impl_class->get_drag_protocol = _gdk_wayland_window_get_drag_protocol;
impl_class->register_dnd = _gdk_wayland_window_register_dnd;
impl_class->drag_begin = _gdk_wayland_window_drag_begin;
impl_class->sync_rendering = gdk_wayland_window_sync_rendering;
impl_class->simulate_key = gdk_wayland_window_simulate_key;
impl_class->simulate_button = gdk_wayland_window_simulate_button;
impl_class->get_property = gdk_wayland_window_get_property;
impl_class->change_property = gdk_wayland_window_change_property;
impl_class->delete_property = gdk_wayland_window_delete_property;
impl_class->get_scale_factor = gdk_wayland_window_get_scale_factor;
impl_class->set_opaque_region = gdk_wayland_window_set_opaque_region;
impl_class->set_shadow_width = gdk_wayland_window_set_shadow_width;
impl_class->show_window_menu = gdk_wayland_window_show_window_menu;
impl_class->create_gl_context = gdk_wayland_window_create_gl_context;
impl_class->invalidate_for_new_frame = gdk_wayland_window_invalidate_for_new_frame;
signals[COMMITTED] = g_signal_new ("committed",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL, NULL,
G_TYPE_NONE, 0);
}
void
_gdk_wayland_window_set_grab_seat (GdkWindow *window,
GdkSeat *seat)
{
GdkWindowImplWayland *impl;
g_return_if_fail (window != NULL);
impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
impl->grab_input_seat = seat;
}
/**
* gdk_wayland_window_get_wl_surface:
* @window: (type GdkWaylandWindow): a #GdkWindow
*
* Returns the Wayland surface of a #GdkWindow.
*
* Returns: (transfer none): a Wayland wl_surface
*
* Since: 3.8
*/
struct wl_surface *
gdk_wayland_window_get_wl_surface (GdkWindow *window)
{
g_return_val_if_fail (GDK_IS_WAYLAND_WINDOW (window), NULL);
return GDK_WINDOW_IMPL_WAYLAND (window->impl)->display_server.wl_surface;
}
struct wl_output *
gdk_wayland_window_get_wl_output (GdkWindow *window)
{
GdkWindowImplWayland *impl;
g_return_val_if_fail (GDK_IS_WAYLAND_WINDOW (window), NULL);
impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
/* We pick the head of the list as this is the last entered output */
if (impl->display_server.outputs)
return (struct wl_output *) impl->display_server.outputs->data;
return NULL;
}
static struct wl_egl_window *
gdk_wayland_window_get_wl_egl_window (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (impl->display_server.egl_window == NULL)
{
impl->display_server.egl_window =
wl_egl_window_create (impl->display_server.wl_surface,
impl->wrapper->width * impl->scale,
impl->wrapper->height * impl->scale);
wl_surface_set_buffer_scale (impl->display_server.wl_surface, impl->scale);
}
return impl->display_server.egl_window;
}
EGLSurface
gdk_wayland_window_get_egl_surface (GdkWindow *window,
EGLConfig config)
{
GdkWaylandDisplay *display = GDK_WAYLAND_DISPLAY (gdk_window_get_display (window));
GdkWindowImplWayland *impl;
struct wl_egl_window *egl_window;
g_return_val_if_fail (GDK_IS_WAYLAND_WINDOW (window), NULL);
impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (impl->egl_surface == NULL)
{
egl_window = gdk_wayland_window_get_wl_egl_window (window);
impl->egl_surface =
eglCreateWindowSurface (display->egl_display, config, egl_window, NULL);
}
return impl->egl_surface;
}
EGLSurface
gdk_wayland_window_get_dummy_egl_surface (GdkWindow *window,
EGLConfig config)
{
GdkWaylandDisplay *display = GDK_WAYLAND_DISPLAY (gdk_window_get_display (window));
GdkWindowImplWayland *impl;
g_return_val_if_fail (GDK_IS_WAYLAND_WINDOW (window), NULL);
impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (impl->dummy_egl_surface == NULL)
{
impl->display_server.dummy_egl_window =
wl_egl_window_create (impl->display_server.wl_surface, 1, 1);
impl->dummy_egl_surface =
eglCreateWindowSurface (display->egl_display, config, impl->display_server.dummy_egl_window, NULL);
}
return impl->dummy_egl_surface;
}
/**
* gdk_wayland_window_set_use_custom_surface:
* @window: (type GdkWaylandWindow): a #GdkWindow
*
* Marks a #GdkWindow as a custom Wayland surface. The application is
* expected to register the surface as some type of surface using
* some Wayland interface.
*
* A good example would be writing a panel or on-screen-keyboard as an
* out-of-process helper - as opposed to having those in the compositor
* process. In this case the underlying surface isn’t an xdg_shell
* surface and the panel or OSK client need to identify the wl_surface
* as a panel or OSK to the compositor. The assumption is that the
* compositor will expose a private interface to the special client
* that lets the client identify the wl_surface as a panel or such.
*
* This function should be called before a #GdkWindow is shown. This is
* best done by connecting to the #GtkWidget::realize signal:
*
* |[<!-- language="C" -->
* static void
* widget_realize_cb (GtkWidget *widget)
* {
* GdkWindow *window;
* struct wl_surface *surface;
* struct input_panel_surface *ip_surface;
*
* window = gtk_widget_get_window (widget);
* gdk_wayland_window_set_custom_surface (window);
*
* surface = gdk_wayland_window_get_wl_surface (window);
* ip_surface = input_panel_get_input_panel_surface (input_panel, surface);
* input_panel_surface_set_panel (ip_surface);
* }
*
* static void
* setup_window (GtkWindow *window)
* {
* g_signal_connect (window, "realize", G_CALLBACK (widget_realize_cb), NULL);
* }
* ]|
*
* Since: 3.10
*/
void
gdk_wayland_window_set_use_custom_surface (GdkWindow *window)
{
GdkWindowImplWayland *impl;
g_return_if_fail (GDK_IS_WAYLAND_WINDOW (window));
impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (!impl->display_server.wl_surface)
gdk_wayland_window_create_surface (window);
impl->use_custom_surface = TRUE;
}
static void
maybe_set_gtk_surface_dbus_properties (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (impl->application.was_set)
return;
if (impl->application.application_id == NULL &&
impl->application.app_menu_path == NULL &&
impl->application.menubar_path == NULL &&
impl->application.window_object_path == NULL &&
impl->application.application_object_path == NULL &&
impl->application.unique_bus_name == NULL)
return;
gdk_wayland_window_init_gtk_surface (window);
if (impl->display_server.gtk_surface == NULL)
return;
gtk_surface1_set_dbus_properties (impl->display_server.gtk_surface,
impl->application.application_id,
impl->application.app_menu_path,
impl->application.menubar_path,
impl->application.window_object_path,
impl->application.application_object_path,
impl->application.unique_bus_name);
impl->application.was_set = TRUE;
}
void
gdk_wayland_window_set_dbus_properties_libgtk_only (GdkWindow *window,
const char *application_id,
const char *app_menu_path,
const char *menubar_path,
const char *window_object_path,
const char *application_object_path,
const char *unique_bus_name)
{
GdkWindowImplWayland *impl;
g_return_if_fail (GDK_IS_WAYLAND_WINDOW (window));
impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
impl->application.application_id = g_strdup (application_id);
impl->application.app_menu_path = g_strdup (app_menu_path);
impl->application.menubar_path = g_strdup (menubar_path);
impl->application.window_object_path = g_strdup (window_object_path);
impl->application.application_object_path =
g_strdup (application_object_path);
impl->application.unique_bus_name = g_strdup (unique_bus_name);
maybe_set_gtk_surface_dbus_properties (window);
}
void
_gdk_wayland_window_offset_next_wl_buffer (GdkWindow *window,
int x,
int y)
{
GdkWindowImplWayland *impl;
g_return_if_fail (GDK_IS_WAYLAND_WINDOW (window));
impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
impl->pending_buffer_offset_x = x;
impl->pending_buffer_offset_y = y;
}
static void
xdg_exported_handle (void *data,
struct zxdg_exported_v1 *zxdg_exported_v1,
const char *handle)
{
GdkWindow *window = data;
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
impl->exported.callback (window, handle, impl->exported.user_data);
impl->exported.user_data = NULL;
}
static const struct zxdg_exported_v1_listener xdg_exported_listener = {
xdg_exported_handle
};
/**
* GdkWaylandWindowExported:
* @window: the #GdkWindow that is exported
* @handle: the handle
* @user_data: user data that was passed to gdk_wayland_window_export_handle()
*
* Callback that gets called when the handle for a window has been
* obtained from the Wayland compositor. The handle can be passed
* to other processes, for the purpose of marking windows as transient
* for out-of-process surfaces.
*
* Since: 3.22
*/
/**
* gdk_wayland_window_export_handle:
* @window: the #GdkWindow to obtain a handle for
* @callback: callback to call with the handle
* @user_data: user data for @callback
* @destroy_func: destroy notify for @user_data
*
* Asynchronously obtains a handle for a surface that can be passed
* to other processes. When the handle has been obtained, @callback
* will be called.
*
* It is an error to call this function on a window that is already
* exported.
*
* When the handle is no longer needed, gdk_wayland_window_unexport_handle()
* should be called to clean up resources.
*
* The main purpose for obtaining a handle is to mark a surface
* from another window as transient for this one, see
* gdk_wayland_window_set_transient_for_exported().
*
* Note that this API depends on an unstable Wayland protocol,
* and thus may require changes in the future.
*
* Return value: %TRUE if the handle has been requested, %FALSE if
* an error occurred.
*
* Since: 3.22
*/
gboolean
gdk_wayland_window_export_handle (GdkWindow *window,
GdkWaylandWindowExported callback,
gpointer user_data,
GDestroyNotify destroy_func)
{
GdkWindowImplWayland *impl;
GdkWaylandDisplay *display_wayland;
GdkDisplay *display = gdk_window_get_display (window);
struct zxdg_exported_v1 *xdg_exported;
g_return_val_if_fail (GDK_IS_WAYLAND_WINDOW (window), FALSE);
g_return_val_if_fail (GDK_IS_WAYLAND_DISPLAY (display), FALSE);
impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
display_wayland = GDK_WAYLAND_DISPLAY (display);
g_return_val_if_fail (!impl->display_server.xdg_exported, FALSE);
if (!display_wayland->xdg_exporter)
{
g_warning ("Server is missing xdg_foreign support");
return FALSE;
}
xdg_exported = zxdg_exporter_v1_export (display_wayland->xdg_exporter,
impl->display_server.wl_surface);
zxdg_exported_v1_add_listener (xdg_exported, &xdg_exported_listener, window);
impl->display_server.xdg_exported = xdg_exported;
impl->exported.callback = callback;
impl->exported.user_data = user_data;
impl->exported.destroy_func = destroy_func;
return TRUE;
}
/**
* gdk_wayland_window_unexport_handle:
* @window: the #GdkWindow to unexport
*
* Destroys the handle that was obtained with
* gdk_wayland_window_export_handle().
*
* It is an error to call this function on a window that
* does not have a handle.
*
* Note that this API depends on an unstable Wayland protocol,
* and thus may require changes in the future.
*
* Since: 3.22
*/
void
gdk_wayland_window_unexport_handle (GdkWindow *window)
{
GdkWindowImplWayland *impl;
g_return_if_fail (GDK_IS_WAYLAND_WINDOW (window));
impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
g_return_if_fail (impl->display_server.xdg_exported);
g_clear_pointer (&impl->display_server.xdg_exported,
zxdg_exported_v1_destroy);
g_clear_pointer (&impl->exported.user_data,
impl->exported.destroy_func);
}
static void
unset_transient_for_exported (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
g_clear_pointer (&impl->imported_transient_for, zxdg_imported_v1_destroy);
}
static void
xdg_imported_destroyed (void *data,
struct zxdg_imported_v1 *zxdg_imported_v1)
{
GdkWindow *window = data;
unset_transient_for_exported (window);
}
static const struct zxdg_imported_v1_listener xdg_imported_listener = {
xdg_imported_destroyed,
};
/**
* gdk_wayland_window_set_transient_for_exported:
* @window: the #GdkWindow to make as transient
* @parent_handle_str: an exported handle for a surface
*
* Marks @window as transient for the surface to which the given
* @parent_handle_str refers. Typically, the handle will originate
* from a gdk_wayland_window_export_handle() call in another process.
*
* Note that this API depends on an unstable Wayland protocol,
* and thus may require changes in the future.
*
* Return value: %TRUE if the window has been marked as transient,
* %FALSE if an error occurred.
*
* Since: 3.22
*/
gboolean
gdk_wayland_window_set_transient_for_exported (GdkWindow *window,
char *parent_handle_str)
{
GdkWindowImplWayland *impl;
GdkWaylandDisplay *display_wayland;
GdkDisplay *display = gdk_window_get_display (window);
g_return_val_if_fail (GDK_IS_WAYLAND_WINDOW (window), FALSE);
g_return_val_if_fail (GDK_IS_WAYLAND_DISPLAY (display), FALSE);
impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
display_wayland = GDK_WAYLAND_DISPLAY (display);
g_return_val_if_fail (impl->display_server.xdg_surface, FALSE);
if (!display_wayland->xdg_importer)
{
g_warning ("Server is missing xdg_foreign support");
return FALSE;
}
gdk_window_set_transient_for (window, NULL);
impl->imported_transient_for =
zxdg_importer_v1_import (display_wayland->xdg_importer, parent_handle_str);
zxdg_imported_v1_add_listener (impl->imported_transient_for,
&xdg_imported_listener,
window);
zxdg_imported_v1_set_parent_of (impl->imported_transient_for,
impl->display_server.wl_surface);
return TRUE;
}
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