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wayland: Add support for custom surfaces

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Allow to set a GdkWindow to use a custom surface instead of a
wl_shell_surface. It allows to register the surface as a custom type
with some Wayland interface.

https://bugzilla.gnome.org/show_bug.cgi?id=695861
This commit is contained in:
Jan Arne Petersen 2013-03-20 16:38:36 +01:00 committed by Matthias Clasen
parent 38eab78904
commit 8d884bb4fb
2 changed files with 119 additions and 16 deletions
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2
gdk/wayland/gdkwaylandwindow.h
View File

@ -47,6 +47,8 @@ GType gdk_wayland_window_get_type (void);
struct wl_surface *gdk_wayland_window_get_wl_surface (GdkWindow *window);
struct wl_shell_surface *gdk_wayland_window_get_wl_shell_surface (GdkWindow *window);
void gdk_wayland_window_set_use_custom_surface (GdkWindow *window);
G_END_DECLS
#endif /* __GDK_WAYLAND_WINDOW_H__ */

115
gdk/wayland/gdkwindow-wayland.c
View File

@ -140,6 +140,8 @@ struct _GdkWindowImplWayland
{
int width, height;
} saved_fullscreen, saved_maximized;
gboolean use_custom_surface;
};
struct _GdkWindowImplWaylandClass
@ -565,13 +567,13 @@ gdk_wayland_window_map (GdkWindow *window)
GDK_WAYLAND_DISPLAY (gdk_window_get_display (window));
GdkWindow *transient_for;
if (!impl->mapped)
if (!impl->mapped && !impl->use_custom_surface)
{
/* 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 */
* the device that created the grab for the popup window
*/
if (!impl->transient_for && impl->hint == GDK_WINDOW_TYPE_HINT_POPUP_MENU)
{
transient_for = gdk_device_get_window_at_position (impl->grab_device, NULL, NULL);
@ -710,13 +712,19 @@ gdk_wayland_window_show (GdkWindow *window, gboolean already_mapped)
XSERVER_TIME_IS_LATER (display_wayland->user_time, impl->user_time))
gdk_wayland_window_set_user_time (window, impl->user_time);
if (!impl->surface)
{
impl->surface = wl_compositor_create_surface(display_wayland->compositor);
wl_surface_set_user_data(impl->surface, window);
}
if (!impl->use_custom_surface && display_wayland->shell)
{
impl->shell_surface = wl_shell_get_shell_surface (display_wayland->shell,
impl->surface);
wl_shell_surface_add_listener(impl->shell_surface,
&shell_surface_listener, window);
}
gdk_window_set_type_hint (window, impl->hint);
@ -740,10 +748,17 @@ gdk_wayland_window_hide (GdkWindow *window)
{
if (impl->shell_surface)
wl_shell_surface_destroy(impl->shell_surface);
if (impl->surface)
if (impl->use_custom_surface)
{
wl_surface_attach (impl->surface, NULL, 0, 0);
wl_surface_commit (impl->surface);
}
else if (impl->surface)
{
wl_surface_destroy(impl->surface);
impl->shell_surface = NULL;
impl->surface = NULL;
}
impl->shell_surface = NULL;
cairo_surface_destroy(impl->server_surface);
impl->server_surface = NULL;
impl->mapped = FALSE;
@ -769,10 +784,17 @@ gdk_window_wayland_withdraw (GdkWindow *window)
{
if (impl->shell_surface)
wl_shell_surface_destroy(impl->shell_surface);
if (impl->surface)
if (impl->use_custom_surface)
{
wl_surface_attach (impl->surface, NULL, 0, 0);
wl_surface_commit (impl->surface);
}
else if (impl->surface)
{
wl_surface_destroy(impl->surface);
impl->shell_surface = NULL;
impl->surface = NULL;
}
impl->shell_surface = NULL;
cairo_surface_destroy(impl->server_surface);
impl->server_surface = NULL;
impl->mapped = FALSE;
@ -1364,8 +1386,12 @@ gdk_wayland_window_fullscreen (GdkWindow *window)
if (impl->fullscreen)
return;
if (!impl->shell_surface)
return;
impl->saved_fullscreen.width = gdk_window_get_width (window);
impl->saved_fullscreen.height = gdk_window_get_height (window);
wl_shell_surface_set_fullscreen (impl->shell_surface,
WL_SHELL_SURFACE_FULLSCREEN_METHOD_DEFAULT,
0,
@ -1387,6 +1413,9 @@ gdk_wayland_window_unfullscreen (GdkWindow *window)
if (!impl->fullscreen)
return;
if (!impl->shell_surface)
return;
wl_shell_surface_set_toplevel (impl->shell_surface);
gdk_synthesize_window_state (window, GDK_WINDOW_STATE_FULLSCREEN, 0);
gdk_wayland_window_configure (window,
@ -1515,6 +1544,9 @@ gdk_wayland_window_begin_resize_drag (GdkWindow *window,
impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (!impl->shell_surface)
return;
wl_shell_surface_resize (impl->shell_surface,
gdk_wayland_device_get_wl_seat (device),
_gdk_wayland_display_get_serial (wayland_display),
@ -1544,6 +1576,9 @@ gdk_wayland_window_begin_move_drag (GdkWindow *window,
impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (!impl->shell_surface)
return;
wl_shell_surface_move (impl->shell_surface,
gdk_wayland_device_get_wl_seat (device),
_gdk_wayland_display_get_serial (wayland_display));
@ -1813,3 +1848,69 @@ gdk_wayland_window_get_wl_shell_surface (GdkWindow *window)
return impl->shell_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.
*
* Agood 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 a wl_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::realized signal:
*
* <informalexample>
* <programlisting>
* 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);
* }
* </programlisting>
* </informalexample>
*
* Since: 3.10
*/
void
gdk_wayland_window_set_use_custom_surface (GdkWindow *window)
{
GdkWindowImplWayland *impl;
GdkWaylandDisplay *display;
g_return_if_fail (GDK_IS_WAYLAND_WINDOW (window));
impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (!impl->surface)
{
display = GDK_WAYLAND_DISPLAY (gdk_window_get_display (window));
impl->surface = wl_compositor_create_surface (display->compositor);
wl_surface_set_user_data (impl->surface, window);
}
impl->use_custom_surface = TRUE;
}