/* Clutter.
* An OpenGL based 'interactive canvas' library.
* Authored By Matthew Allum <mallum@openedhand.com>
* Copyright (C) 2006-2007 OpenedHand
*
* 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 <math.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <cogl/cogl.h>
#ifdef COGL_HAS_XLIB_SUPPORT
#include <cogl/cogl-xlib.h>
#endif
#define GDK_DISABLE_DEPRECATION_WARNINGS
#include <gdk/gdk.h>
#ifdef GDK_WINDOWING_X11
#include <gdk/gdkx.h>
#endif
#ifdef GDK_WINDOWING_WAYLAND
#include <gdk/gdkwayland.h>
#endif
#ifdef GDK_WINDOWING_WIN32
#include <gdk/gdkwin32.h>
#endif
#include "clutter-backend-gdk.h"
#include "clutter-stage-gdk.h"
#include "clutter-gdk.h"
#include "clutter-actor-private.h"
#include "clutter-debug.h"
#include "clutter-device-manager-private.h"
#include "clutter-enum-types.h"
#include "clutter-event-translator.h"
#include "clutter-event-private.h"
#include "clutter-feature.h"
#include "clutter-main.h"
#include "clutter-paint-volume-private.h"
#include "clutter-private.h"
#include "clutter-stage-private.h"
static void clutter_stage_window_iface_init (ClutterStageWindowIface *iface);
static int clutter_stage_gdk_get_scale_factor (ClutterStageWindow *stage_window);
static ClutterStageWindowIface *clutter_stage_window_parent_iface = NULL;
#define clutter_stage_gdk_get_type _clutter_stage_gdk_get_type
G_DEFINE_TYPE_WITH_CODE (ClutterStageGdk,
clutter_stage_gdk,
CLUTTER_TYPE_STAGE_COGL,
G_IMPLEMENT_INTERFACE (CLUTTER_TYPE_STAGE_WINDOW,
clutter_stage_window_iface_init));
#if defined(GDK_WINDOWING_X11) && defined(COGL_HAS_XLIB_SUPPORT)
static void
clutter_stage_gdk_update_foreign_event_mask (CoglOnscreen *onscreen,
guint32 event_mask,
void *user_data)
{
ClutterStageGdk *stage_gdk = user_data;
/* we assume that a GDK event mask is bitwise compatible with X11
event masks */
gdk_window_set_events (stage_gdk->window, event_mask | CLUTTER_STAGE_GDK_EVENT_MASK);
}
#endif
static void
clutter_stage_gdk_set_gdk_geometry (ClutterStageGdk *stage)
{
GdkGeometry geometry;
ClutterStage *wrapper = CLUTTER_STAGE_COGL (stage)->wrapper;
gboolean resize = clutter_stage_get_user_resizable (wrapper);
if (!resize)
{
geometry.min_width = geometry.max_width = gdk_window_get_width (stage->window);
geometry.min_height = geometry.max_height = gdk_window_get_height (stage->window);
gdk_window_set_geometry_hints (stage->window,
&geometry,
GDK_HINT_MIN_SIZE | GDK_HINT_MAX_SIZE);
}
else
{
clutter_stage_get_minimum_size (wrapper,
(guint *)&geometry.min_width,
(guint *)&geometry.min_height);
gdk_window_set_geometry_hints (stage->window,
&geometry,
GDK_HINT_MIN_SIZE);
}
}
static void
clutter_stage_gdk_get_geometry (ClutterStageWindow *stage_window,
cairo_rectangle_int_t *geometry)
{
ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
geometry->x = geometry->y = 0;
if (stage_gdk->window != NULL)
{
geometry->width = gdk_window_get_width (stage_gdk->window);
geometry->height = gdk_window_get_height (stage_gdk->window);
}
else
{
geometry->width = 800;
geometry->height = 600;
}
}
static void
clutter_stage_gdk_resize (ClutterStageWindow *stage_window,
gint width,
gint height)
{
ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
if (width == 0 || height == 0)
{
/* Should not happen, if this turns up we need to debug it and
* determine the cleanest way to fix.
*/
g_warning ("GDK stage not allowed to have 0 width or height");
width = 1;
height = 1;
}
CLUTTER_NOTE (BACKEND, "New size received: (%d, %d)", width, height);
/* No need to resize foreign windows, it should be handled by the
* embedding framework, but on wayland we might need to resize our
* own subsurface.
*/
if (!stage_gdk->foreign_window)
gdk_window_resize (stage_gdk->window, width, height);
#if defined(GDK_WINDOWING_WAYLAND) && defined(COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT)
else if (GDK_IS_WAYLAND_WINDOW (stage_gdk->window))
{
int scale = clutter_stage_gdk_get_scale_factor (CLUTTER_STAGE_WINDOW (stage_gdk));
cogl_wayland_onscreen_resize (CLUTTER_STAGE_COGL (stage_gdk)->onscreen,
width * scale, height * scale, 0, 0);
}
#endif
}
static void
clutter_stage_gdk_unrealize (ClutterStageWindow *stage_window)
{
ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
if (stage_gdk->window != NULL)
{
g_object_set_data (G_OBJECT (stage_gdk->window),
"clutter-stage-window", NULL);
if (stage_gdk->foreign_window)
{
ClutterStageCogl *stage_cogl = CLUTTER_STAGE_COGL (stage_window);
g_object_unref (stage_gdk->window);
/* Clutter still uses part of the deprecated stateful API of
* Cogl (in particulart cogl_set_framebuffer). It means Cogl
* can keep an internal reference to the onscreen object we
* rendered to. In the case of foreign window, we want to
* avoid this, as we don't know what's going to happen to
* that window.
*
* The following call sets the current Cogl framebuffer to a
* dummy 1x1 one if we're unrealizing the current one, so
* Cogl doesn't keep any reference to the foreign window.
*/
if (cogl_get_draw_framebuffer () == COGL_FRAMEBUFFER (stage_cogl->onscreen))
_clutter_backend_reset_cogl_framebuffer (stage_cogl->backend);
}
else
gdk_window_destroy (stage_gdk->window);
stage_gdk->window = NULL;
}
#if defined(GDK_WINDOWING_WAYLAND) && defined(COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT)
/* Destroy and clear subsurface as well */
if (GDK_IS_WAYLAND_WINDOW (stage_gdk->subsurface))
{
gdk_window_destroy (stage_gdk->subsurface);
stage_gdk->subsurface = NULL;
}
#endif
clutter_stage_window_parent_iface->unrealize (stage_window);
}
#if defined(GDK_WINDOWING_WAYLAND)
static struct wl_surface *
clutter_stage_gdk_wayland_surface (ClutterStageGdk *stage_gdk)
{
GdkDisplay *display;
cairo_region_t *input_region;
cairo_rectangle_int_t empty_rect = { 0, };
GdkWindowAttr attributes;
gint attributes_mask;
if (!stage_gdk->foreign_window ||
gdk_window_get_window_type (stage_gdk->window) != GDK_WINDOW_CHILD)
return gdk_wayland_window_get_wl_surface (stage_gdk->window);
if (stage_gdk->subsurface)
goto out;
/* On Wayland if we render to a foreign window, we setup our own
* surface to not render in the same buffers as the embedding
* framework.
*/
display = gdk_window_get_display (stage_gdk->window);
attributes.window_type = GDK_WINDOW_SUBSURFACE;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.x = 0;
attributes.y = 0;
attributes_mask = GDK_WA_X | GDK_WA_Y;
stage_gdk->subsurface = gdk_window_new (stage_gdk->window, &attributes, attributes_mask);
gdk_window_set_transient_for (stage_gdk->subsurface, stage_gdk->window);
/* Since we run inside GDK, we can let the embedding framework
* dispatch the events to Clutter. For that to happen we need to
* disable input on our surface. */
input_region = cairo_region_create_rectangle (&empty_rect);
gdk_window_input_shape_combine_region (stage_gdk->subsurface, input_region, 0, 0);
cairo_region_destroy (input_region);
out:
return gdk_wayland_window_get_wl_surface (stage_gdk->subsurface);
}
#endif
void
_clutter_stage_gdk_notify_configure (ClutterStageGdk *stage_gdk,
gint x,
gint y,
gint width,
gint height)
{
if (x < 0 || y < 0 || width < 1 || height < 1)
return;
if (stage_gdk->foreign_window)
{
ClutterStageCogl *stage_cogl = CLUTTER_STAGE_COGL (stage_gdk);
int scale = clutter_stage_gdk_get_scale_factor (CLUTTER_STAGE_WINDOW (stage_gdk));
#if defined(GDK_WINDOWING_WAYLAND) && defined(COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT)
if (GDK_IS_WAYLAND_WINDOW (stage_gdk->window) &&
gdk_window_get_window_type (stage_gdk->window) == GDK_WINDOW_CHILD &&
stage_gdk->subsurface)
{
cogl_wayland_onscreen_resize (stage_cogl->onscreen,
width * scale, height * scale, 0, 0);
}
else
#endif
#if defined(GDK_WINDOWING_X11) && defined(COGL_HAS_XLIB_SUPPORT)
if (GDK_IS_X11_WINDOW (stage_gdk->window))
{
ClutterBackend *backend = CLUTTER_BACKEND (stage_cogl->backend);
XConfigureEvent xevent = { ConfigureNotify };
xevent.window = GDK_WINDOW_XID (stage_gdk->window);
xevent.width = width * scale;
xevent.height = height * scale;
/* Ensure cogl knows about the new size immediately, as we will
* draw before we get the ConfigureNotify response. */
cogl_xlib_renderer_handle_event (backend->cogl_renderer, (XEvent *)&xevent);
}
else
#endif
{
/* Currently we only support X11 and Wayland. */
g_assert_not_reached();
}
}
}
static gboolean
clutter_stage_gdk_realize (ClutterStageWindow *stage_window)
{
ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
ClutterStageCogl *stage_cogl = CLUTTER_STAGE_COGL (stage_window);
ClutterBackend *backend = CLUTTER_BACKEND (stage_cogl->backend);
ClutterBackendGdk *backend_gdk = CLUTTER_BACKEND_GDK (backend);
GdkWindowAttr attributes;
gboolean cursor_visible;
gboolean use_alpha;
gfloat width, height;
int scale;
if (backend->cogl_context == NULL)
{
g_warning ("Missing Cogl context: was Clutter correctly initialized?");
return FALSE;
}
if (!stage_gdk->foreign_window)
{
if (stage_gdk->window != NULL)
{
/* complete realizing the stage */
cairo_rectangle_int_t geometry;
clutter_stage_gdk_get_geometry (stage_window, &geometry);
clutter_actor_set_size (CLUTTER_ACTOR (stage_cogl->wrapper),
geometry.width,
geometry.height);
gdk_window_ensure_native (stage_gdk->window);
gdk_window_set_events (stage_gdk->window, CLUTTER_STAGE_GDK_EVENT_MASK);
return TRUE;
}
else
{
attributes.title = NULL;
g_object_get (stage_cogl->wrapper,
"cursor-visible", &cursor_visible,
"title", &attributes.title,
"width", &width,
"height", &height,
"use-alpha", &use_alpha,
NULL);
attributes.width = width;
attributes.height = height;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.window_type = GDK_WINDOW_TOPLEVEL;
attributes.event_mask = CLUTTER_STAGE_GDK_EVENT_MASK;
attributes.cursor = NULL;
if (!cursor_visible)
{
if (stage_gdk->blank_cursor == NULL)
stage_gdk->blank_cursor = gdk_cursor_new_for_display (backend_gdk->display, GDK_BLANK_CURSOR);
attributes.cursor = stage_gdk->blank_cursor;
}
/* If the ClutterStage:use-alpha is set, but GDK does not have an
* RGBA visual, then we unset the property on the Stage
*/
if (use_alpha)
{
if (gdk_screen_get_rgba_visual (backend_gdk->screen) == NULL)
{
clutter_stage_set_use_alpha (stage_cogl->wrapper, FALSE);
use_alpha = FALSE;
}
}
#if defined(GDK_WINDOWING_X11) && defined(COGL_HAS_XLIB_SUPPORT)
if (GDK_IS_X11_DISPLAY (backend_gdk->display))
{
XVisualInfo *xvisinfo = cogl_clutter_winsys_xlib_get_visual_info ();
if (xvisinfo != NULL)
{
attributes.visual = gdk_x11_screen_lookup_visual (backend_gdk->screen,
xvisinfo->visualid);
}
}
else
#endif
{
attributes.visual = use_alpha
? gdk_screen_get_rgba_visual (backend_gdk->screen)
: gdk_screen_get_system_visual (backend_gdk->screen);
}
if (attributes.visual == NULL)
{
/* This could still be an RGBA visual, although normally it's not */
attributes.visual = gdk_screen_get_system_visual (backend_gdk->screen);
}
stage_gdk->foreign_window = FALSE;
stage_gdk->window = gdk_window_new (NULL, &attributes,
GDK_WA_TITLE | GDK_WA_CURSOR | GDK_WA_VISUAL);
g_free (attributes.title);
}
clutter_stage_gdk_set_gdk_geometry (stage_gdk);
gdk_window_ensure_native (stage_gdk->window);
}
else
{
width = gdk_window_get_width (stage_gdk->window);
height = gdk_window_get_height (stage_gdk->window);
}
g_object_set_data (G_OBJECT (stage_gdk->window), "clutter-stage-window", stage_gdk);
scale = clutter_stage_gdk_get_scale_factor (CLUTTER_STAGE_WINDOW (stage_gdk));
stage_cogl->onscreen = cogl_onscreen_new (backend->cogl_context,
width * scale, height * scale);
#if defined(GDK_WINDOWING_X11) && defined(COGL_HAS_XLIB_SUPPORT)
if (GDK_IS_X11_WINDOW (stage_gdk->window))
{
cogl_x11_onscreen_set_foreign_window_xid (stage_cogl->onscreen,
GDK_WINDOW_XID (stage_gdk->window),
clutter_stage_gdk_update_foreign_event_mask,
stage_gdk);
}
else
#endif
#if defined(GDK_WINDOWING_WAYLAND) && defined(COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT)
if (GDK_IS_WAYLAND_WINDOW (stage_gdk->window))
{
cogl_wayland_onscreen_set_foreign_surface (stage_cogl->onscreen,
clutter_stage_gdk_wayland_surface (stage_gdk));
}
else
#endif
#if defined(GDK_WINDOWING_WIN32) && defined(COGL_HAS_WIN32_SUPPORT)
if (GDK_IS_WIN32_WINDOW (stage_gdk->window))
{
cogl_win32_onscreen_set_foreign_window (stage_cogl->onscreen,
gdk_win32_window_get_handle (stage_gdk->window));
}
else
#endif
{
g_warning ("Cannot find an appropriate CoglWinsys for a "
"GdkWindow of type %s", G_OBJECT_TYPE_NAME (stage_gdk->window));
cogl_object_unref (stage_cogl->onscreen);
stage_cogl->onscreen = NULL;
if (!stage_gdk->foreign_window)
gdk_window_destroy (stage_gdk->window);
stage_gdk->window = NULL;
return FALSE;
}
return clutter_stage_window_parent_iface->realize (stage_window);
}
static void
clutter_stage_gdk_set_fullscreen (ClutterStageWindow *stage_window,
gboolean is_fullscreen)
{
ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
ClutterStageCogl *stage_cogl = CLUTTER_STAGE_COGL (stage_window);
ClutterStage *stage = CLUTTER_STAGE_COGL (stage_window)->wrapper;
gboolean swap_throttle;
if (stage == NULL || CLUTTER_ACTOR_IN_DESTRUCTION (stage))
return;
if (stage_gdk->window == NULL || stage_gdk->foreign_window)
return;
CLUTTER_NOTE (BACKEND, "%ssetting fullscreen", is_fullscreen ? "" : "un");
if (is_fullscreen)
gdk_window_fullscreen (stage_gdk->window);
else
gdk_window_unfullscreen (stage_gdk->window);
/* Full-screen stages are usually unredirected to improve performance
* by avoiding a copy; when that happens, we need to turn back swap
* throttling because we won't be managed by the compositor any more,
*/
swap_throttle = is_fullscreen;
#ifdef GDK_WINDOWING_WAYLAND
{
/* Except on Wayland, where there's a deadlock due to both Cogl
* and GDK attempting to consume the throttling event; see bug
* https://bugzilla.gnome.org/show_bug.cgi?id=754671#c1
*/
GdkDisplay *display = clutter_gdk_get_default_display ();
if (GDK_IS_WAYLAND_DISPLAY (display))
swap_throttle = FALSE;
}
#endif
cogl_onscreen_set_swap_throttled (stage_cogl->onscreen, swap_throttle);
}
static void
clutter_stage_gdk_set_cursor_visible (ClutterStageWindow *stage_window,
gboolean cursor_visible)
{
ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
if (stage_gdk->window == NULL)
return;
if (cursor_visible)
{
gdk_window_set_cursor (stage_gdk->window, NULL);
}
else
{
if (stage_gdk->blank_cursor == NULL)
{
GdkDisplay *display = clutter_gdk_get_default_display ();
stage_gdk->blank_cursor = gdk_cursor_new_for_display (display, GDK_BLANK_CURSOR);
}
gdk_window_set_cursor (stage_gdk->window, stage_gdk->blank_cursor);
}
}
static void
clutter_stage_gdk_set_title (ClutterStageWindow *stage_window,
const gchar *title)
{
ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
if (stage_gdk->window == NULL || stage_gdk->foreign_window)
return;
gdk_window_set_title (stage_gdk->window, title);
}
static void
clutter_stage_gdk_set_user_resizable (ClutterStageWindow *stage_window,
gboolean is_resizable)
{
ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
GdkWMFunction function;
if (stage_gdk->window == NULL || stage_gdk->foreign_window)
return;
function = GDK_FUNC_MOVE | GDK_FUNC_MINIMIZE | GDK_FUNC_CLOSE;
if (is_resizable)
function |= GDK_FUNC_RESIZE | GDK_FUNC_MAXIMIZE;
gdk_window_set_functions (stage_gdk->window, function);
clutter_stage_gdk_set_gdk_geometry (stage_gdk);
}
static void
clutter_stage_gdk_set_accept_focus (ClutterStageWindow *stage_window,
gboolean accept_focus)
{
ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
if (stage_gdk->window == NULL || stage_gdk->foreign_window)
return;
gdk_window_set_accept_focus (stage_gdk->window, accept_focus);
}
static void
clutter_stage_gdk_show (ClutterStageWindow *stage_window,
gboolean do_raise)
{
ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
g_return_if_fail (stage_gdk->window != NULL);
clutter_actor_map (CLUTTER_ACTOR (CLUTTER_STAGE_COGL (stage_gdk)->wrapper));
#if defined(GDK_WINDOWING_WAYLAND) && defined(COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT)
if (GDK_IS_WAYLAND_WINDOW (stage_gdk->subsurface))
gdk_window_show (stage_gdk->subsurface);
#endif
/* Foreign window should be shown by the embedding framework. */
if (!stage_gdk->foreign_window)
{
if (do_raise)
gdk_window_show (stage_gdk->window);
else
gdk_window_show_unraised (stage_gdk->window);
}
}
static void
clutter_stage_gdk_hide (ClutterStageWindow *stage_window)
{
ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
g_return_if_fail (stage_gdk->window != NULL);
clutter_actor_unmap (CLUTTER_ACTOR (CLUTTER_STAGE_COGL (stage_gdk)->wrapper));
/* Foreign window should be hidden by the embedding framework. */
#if defined(GDK_WINDOWING_WAYLAND) && defined(COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT)
if (GDK_IS_WAYLAND_WINDOW (stage_gdk->subsurface))
gdk_window_hide (stage_gdk->subsurface);
#endif
if (!stage_gdk->foreign_window)
gdk_window_hide (stage_gdk->window);
}
static gboolean
clutter_stage_gdk_can_clip_redraws (ClutterStageWindow *stage_window)
{
return TRUE;
}
static int
clutter_stage_gdk_get_scale_factor (ClutterStageWindow *stage_window)
{
ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
if (stage_gdk->window == NULL)
return 1;
/* For Wayland using a subsurface, scaling is handled by gdk */
#if defined(GDK_WINDOWING_WAYLAND) && defined(COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT)
if (GDK_IS_WAYLAND_WINDOW (stage_gdk->subsurface))
return 1;
else
#endif
return gdk_window_get_scale_factor (stage_gdk->window);
}
static void
clutter_stage_gdk_redraw (ClutterStageWindow *stage_window)
{
ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
GdkFrameClock *clock;
if (stage_gdk->window == NULL ||
(clock = gdk_window_get_frame_clock (stage_gdk->window)) == NULL)
{
clutter_stage_window_parent_iface->redraw (stage_window);
return;
}
gdk_frame_clock_begin_updating (clock);
clutter_stage_window_parent_iface->redraw (stage_window);
gdk_frame_clock_end_updating (clock);
}
static void
clutter_stage_gdk_schedule_update (ClutterStageWindow *stage_window,
gint sync_delay)
{
ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
GdkFrameClock *clock;
if (stage_gdk->window == NULL ||
(clock = gdk_window_get_frame_clock (stage_gdk->window)) == NULL)
{
clutter_stage_window_parent_iface->schedule_update (stage_window, sync_delay);
return;
}
gdk_frame_clock_request_phase (clock, GDK_FRAME_CLOCK_PHASE_PAINT);
clutter_stage_window_parent_iface->schedule_update (stage_window, sync_delay);
}
static gint64
clutter_stage_gdk_get_update_time (ClutterStageWindow *stage_window)
{
ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (stage_window);
GdkFrameClock *frame_clock;
GdkFrameTimings *frame_timings;
if (stage_gdk->window == NULL ||
(frame_clock = gdk_window_get_frame_clock (stage_gdk->window)) == NULL ||
(frame_timings = gdk_frame_clock_get_current_timings (frame_clock)) == NULL ||
!gdk_frame_timings_get_complete (frame_timings))
return -1; /* No data, indefinite */
return (gdk_frame_timings_get_presentation_time (frame_timings) +
gdk_frame_timings_get_refresh_interval (frame_timings));
}
static void
clutter_stage_gdk_dispose (GObject *gobject)
{
ClutterStageGdk *stage_gdk = CLUTTER_STAGE_GDK (gobject);
#if defined(GDK_WINDOWING_WAYLAND) && defined(COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT)
if (GDK_IS_WAYLAND_WINDOW (stage_gdk->subsurface))
{
gdk_window_destroy (stage_gdk->subsurface);
stage_gdk->subsurface = NULL;
}
#endif
if (stage_gdk->window != NULL)
{
g_object_set_data (G_OBJECT (stage_gdk->window),
"clutter-stage-window", NULL);
if (stage_gdk->foreign_window)
g_object_unref (stage_gdk->window);
else
gdk_window_destroy (stage_gdk->window);
stage_gdk->window = NULL;
}
if (stage_gdk->blank_cursor != NULL)
{
g_object_unref (stage_gdk->blank_cursor);
stage_gdk->blank_cursor = NULL;
}
G_OBJECT_CLASS (clutter_stage_gdk_parent_class)->dispose (gobject);
}
static void
clutter_stage_gdk_class_init (ClutterStageGdkClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->dispose = clutter_stage_gdk_dispose;
}
static void
clutter_stage_gdk_init (ClutterStageGdk *stage)
{
}
static void
clutter_stage_window_iface_init (ClutterStageWindowIface *iface)
{
clutter_stage_window_parent_iface = g_type_interface_peek_parent (iface);
iface->set_title = clutter_stage_gdk_set_title;
iface->set_fullscreen = clutter_stage_gdk_set_fullscreen;
iface->set_cursor_visible = clutter_stage_gdk_set_cursor_visible;
iface->set_user_resizable = clutter_stage_gdk_set_user_resizable;
iface->set_accept_focus = clutter_stage_gdk_set_accept_focus;
iface->show = clutter_stage_gdk_show;
iface->hide = clutter_stage_gdk_hide;
iface->resize = clutter_stage_gdk_resize;
iface->get_geometry = clutter_stage_gdk_get_geometry;
iface->realize = clutter_stage_gdk_realize;
iface->unrealize = clutter_stage_gdk_unrealize;
iface->can_clip_redraws = clutter_stage_gdk_can_clip_redraws;
iface->get_scale_factor = clutter_stage_gdk_get_scale_factor;
iface->redraw = clutter_stage_gdk_redraw;
iface->schedule_update = clutter_stage_gdk_schedule_update;
iface->get_update_time = clutter_stage_gdk_get_update_time;
}
/**
* clutter_gdk_get_stage_window:
* @stage: a #ClutterStage
*
* Gets the stages GdkWindow.
*
* Return value: (transfer none): A GdkWindow* for the stage window.
*
* Since: 1.10
*/
GdkWindow *
clutter_gdk_get_stage_window (ClutterStage *stage)
{
ClutterStageWindow *impl;
g_return_val_if_fail (CLUTTER_IS_STAGE (stage), NULL);
impl = _clutter_stage_get_window (stage);
if (!CLUTTER_IS_STAGE_GDK (impl))
{
g_critical ("The Clutter backend is not a GDK backend");
return NULL;
}
return CLUTTER_STAGE_GDK (impl)->window;
}
/**
* clutter_gdk_get_stage_from_window:
* @window: a #GtkWindow
*
* Gets the stage for a particular X window.
*
* Return value: (transfer none): A #ClutterStage, or% NULL if a stage
* does not exist for the window
*
* Since: 1.10
*/
ClutterStage *
clutter_gdk_get_stage_from_window (GdkWindow *window)
{
ClutterStageGdk *stage_gdk = g_object_get_data (G_OBJECT (window), "clutter-stage-window");
if (stage_gdk != NULL && CLUTTER_IS_STAGE_GDK (stage_gdk))
return CLUTTER_STAGE_COGL (stage_gdk)->wrapper;
return NULL;
}
typedef struct
{
ClutterStageGdk *stage_gdk;
GdkWindow *window;
} ForeignWindowClosure;
static void
set_foreign_window_callback (ClutterActor *actor,
void *data)
{
ForeignWindowClosure *closure = data;
ClutterStageGdk *stage_gdk = closure->stage_gdk;
stage_gdk->window = closure->window;
stage_gdk->foreign_window = TRUE;
/* calling this with the stage unrealized will unset the stage
* from the GL context; once the stage is realized the GL context
* will be set again
*/
clutter_stage_ensure_current (CLUTTER_STAGE (actor));
}
/**
* clutter_gdk_set_stage_foreign:
* @stage: a #ClutterStage
* @window: an existing #GdkWindow
*
* Target the #ClutterStage to use an existing external #GdkWindow
*
* Return value: %TRUE if foreign window is valid
*
* Since: 1.10
*/
gboolean
clutter_gdk_set_stage_foreign (ClutterStage *stage,
GdkWindow *window)
{
ForeignWindowClosure closure;
ClutterStageGdk *stage_gdk;
ClutterStageWindow *impl;
ClutterActor *actor;
g_return_val_if_fail (CLUTTER_IS_STAGE (stage), FALSE);
g_return_val_if_fail (!CLUTTER_ACTOR_IN_DESTRUCTION (stage), FALSE);
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
impl = _clutter_stage_get_window (stage);
if (!CLUTTER_IS_STAGE_GDK (impl))
{
g_critical ("The Clutter backend is not a GDK backend");
return FALSE;
}
stage_gdk = CLUTTER_STAGE_GDK (impl);
if (g_object_get_data (G_OBJECT (window), "clutter-stage-window") != NULL)
{
g_critical ("The provided GdkWindow is already in use by another ClutterStage");
return FALSE;
}
closure.stage_gdk = stage_gdk;
closure.window = g_object_ref (window);
actor = CLUTTER_ACTOR (stage);
_clutter_actor_rerealize (actor,
set_foreign_window_callback,
&closure);
/* Queue a relayout - so the stage will be allocated the new
* window size.
*
* Note also that when the stage gets allocated the new
* window size that will result in the stage's
* priv->viewport being changed, which will in turn result
* in the Cogl viewport changing when _clutter_do_redraw
* calls _clutter_stage_maybe_setup_viewport().
*/
clutter_actor_queue_relayout (actor);
return TRUE;
}