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gdk/wayland: Avoid idempotent wl_subsurface.set_position calls

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These may not result on wl_surface.frame callbacks, yet we do trigger
a frame clock tick that would get stuck on the lack of such callback.

https://bugzilla.gnome.org/show_bug.cgi?id=784314
https://gitlab.gnome.org/GNOME/gtk/issues/844

Closes: #844
This commit is contained in:
Carlos Garnacho 2017-10-06 01:06:03 +02:00
parent 2e9439b017
commit 935bb5db32
1 changed files with 29 additions and 9 deletions
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38
gdk/wayland/gdkwindow-wayland.c
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@ -158,6 +158,9 @@ struct _GdkWindowImplWayland
int pending_buffer_offset_x;
int pending_buffer_offset_y;
int subsurface_x;
int subsurface_y;
gchar *title;
struct {
@ -1420,6 +1423,22 @@ on_parent_surface_committed (GdkWindowImplWayland *parent_impl,
gdk_wayland_set_input_region_if_empty (window);
}
static void
gdk_wayland_window_set_subsurface_position (GdkWindow *window,
int x,
int y)
{
GdkWindowImplWayland *impl;
impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
wl_subsurface_set_position (impl->display_server.wl_subsurface, x, y);
impl->subsurface_x = x;
impl->subsurface_y = y;
gdk_window_request_transient_parent_commit (window);
}
static void
gdk_wayland_window_create_subsurface (GdkWindow *window)
{
@ -1443,9 +1462,6 @@ gdk_wayland_window_create_subsurface (GdkWindow *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->abs_x,
window->y + window->abs_y);
/* In order to synchronize the initial position with the initial frame
* content, wait with making the subsurface desynchronized until after
@ -1455,7 +1471,10 @@ gdk_wayland_window_create_subsurface (GdkWindow *window)
g_signal_connect_object (parent_impl, "committed",
G_CALLBACK (on_parent_surface_committed),
window, 0);
gdk_window_request_transient_parent_commit (window);
gdk_wayland_window_set_subsurface_position (window,
window->x + window->abs_x,
window->y + window->abs_y);
}
}
@ -3260,12 +3279,13 @@ gdk_window_wayland_move_resize (GdkWindow *window,
window->y = y;
impl->position_method = POSITION_METHOD_MOVE_RESIZE;
if (impl->display_server.wl_subsurface)
if (impl->display_server.wl_subsurface &&
(x + window->abs_x != impl->subsurface_x ||
y + window->abs_y != impl->subsurface_y))
{
wl_subsurface_set_position (impl->display_server.wl_subsurface,
window->x + window->abs_x,
window->y + window->abs_y);
gdk_window_request_transient_parent_commit (window);
gdk_wayland_window_set_subsurface_position (window,
x + window->abs_x,
y + window->abs_y);
}
}
}