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wayland: Compare geometries after chaining up

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After 20176d03, the Wayland backend only synchronizes with the
compositor after a geometry was set, and it was different from
the current geometry.

That commit was mistakenly comparing the geometry before chaining
up, which would yield a false negative on the case where the
client didn't call set_geometry() before commit().

Fix that by caching the old geometry locally, chain up (and thus
apply the new geometry rectangle), then comparing the old and
current geometry rectangles.

Fixes https://gitlab.gnome.org/GNOME/mutter/issues/150
This commit is contained in:
Georges Basile Stavracas Neto 2018-05-17 17:46:05 -03:00
parent c9c3283540
commit cf734999fb
2 changed files with 8 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
src/wayland/meta-wayland-legacy-xdg-shell.c
View File

@ -585,17 +585,6 @@ is_new_size_hints_valid (MetaWindow *window,
(new_max_height == 0 || new_min_height <= new_max_height));
}
static inline gboolean
did_geometry_change (MetaWaylandZxdgSurfaceV6 *xdg_surface,
MetaWaylandPendingState *pending)
{
MetaWaylandZxdgSurfaceV6Private *priv =
meta_wayland_zxdg_surface_v6_get_instance_private (xdg_surface);
return pending->has_new_geometry &&
!meta_rectangle_equal (&priv->geometry, &pending->new_geometry);
}
static void
meta_wayland_zxdg_toplevel_v6_commit (MetaWaylandSurfaceRole *surface_role,
MetaWaylandPendingState *pending)
@ -611,11 +600,10 @@ meta_wayland_zxdg_toplevel_v6_commit (MetaWaylandSurfaceRole *surface_role,
meta_wayland_surface_role_get_surface (surface_role);
MetaWindow *window = surface->window;
MetaRectangle window_geometry;
MetaRectangle old_geometry;
gboolean geometry_changed;
/* This check must happen before chaining up, otherwise the new geometry
* is applied and it'll always return FALSE. */
geometry_changed = did_geometry_change (xdg_surface, pending);
old_geometry = xdg_surface_priv->geometry;
surface_role_class =
META_WAYLAND_SURFACE_ROLE_CLASS (meta_wayland_zxdg_toplevel_v6_parent_class);
@ -634,6 +622,8 @@ meta_wayland_zxdg_toplevel_v6_commit (MetaWaylandSurfaceRole *surface_role,
if (!window)
return;
geometry_changed = !meta_rectangle_equal (&old_geometry, &xdg_surface_priv->geometry);
if (geometry_changed || meta_window_wayland_needs_move_resize (window))
{
window_geometry =

19
src/wayland/meta-wayland-xdg-shell.c
View File

@ -608,17 +608,6 @@ is_new_size_hints_valid (MetaWindow *window,
(new_max_height == 0 || new_min_height <= new_max_height));
}
static inline gboolean
did_geometry_change (MetaWaylandXdgSurface *xdg_surface,
MetaWaylandPendingState *pending)
{
MetaWaylandXdgSurfacePrivate *priv =
meta_wayland_xdg_surface_get_instance_private (xdg_surface);
return pending->has_new_geometry &&
!meta_rectangle_equal (&priv->geometry, &pending->new_geometry);
}
static void
meta_wayland_xdg_toplevel_commit (MetaWaylandSurfaceRole *surface_role,
MetaWaylandPendingState *pending)
@ -632,6 +621,7 @@ meta_wayland_xdg_toplevel_commit (MetaWaylandSurfaceRole *surface_role,
meta_wayland_surface_role_get_surface (surface_role);
MetaWindow *window;
MetaRectangle window_geometry;
MetaRectangle old_geometry;
gboolean geometry_changed;
if (!surface->buffer_ref.buffer && xdg_surface_priv->first_buffer_attached)
@ -641,10 +631,7 @@ meta_wayland_xdg_toplevel_commit (MetaWaylandSurfaceRole *surface_role,
}
window = surface->window;
/* This check must happen before chaining up, otherwise the new geometry
* is applied and it'll always return FALSE. */
geometry_changed = did_geometry_change (xdg_surface, pending);
old_geometry = xdg_surface_priv->geometry;
surface_role_class =
META_WAYLAND_SURFACE_ROLE_CLASS (meta_wayland_xdg_toplevel_parent_class);
@ -659,6 +646,8 @@ meta_wayland_xdg_toplevel_commit (MetaWaylandSurfaceRole *surface_role,
if (!pending->newly_attached)
return;
geometry_changed = !meta_rectangle_equal (&old_geometry, &xdg_surface_priv->geometry);
if (geometry_changed || meta_window_wayland_needs_move_resize (window))
{
window_geometry = meta_wayland_xdg_surface_get_window_geometry (xdg_surface);