mutter/src/backends/meta-stage.h
Ray Strode 9f17c05a15 wayland: manually activate/deactivate stage when taking/dropping grab
clutter currently never emits activated or deactivated signals on
the stage object when using the EGL backend. Since the stage never
gets activated, accessibility tools, like orca, don't work.

This commit makes mutter take on the responsibility, by tracking
when the stage gains/loses focus, and then synthesizing stage
CLUTTER_STAGE_STATE_ACTIVATED state events.

A limitation of this approach is that clutter's own notion of
the stage activeness won't reflect mutter's notion of the
stage activeness.  This isn't a problem, in practice, and can
be addressed in the medium-term after making changes to
clutter.

https://bugzilla.gnome.org/show_bug.cgi?id=746670
2015-03-28 11:20:48 -04:00

63 lines
2.0 KiB
C

/*
* Copyright (C) 2012 Intel Corporation
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#ifndef META_STAGE_H
#define META_STAGE_H
#include <clutter/clutter.h>
#include "meta-cursor.h"
#include <meta/boxes.h>
G_BEGIN_DECLS
#define META_TYPE_STAGE (meta_stage_get_type ())
#define META_STAGE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_STAGE, MetaStage))
#define META_STAGE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), META_TYPE_STAGE, MetaStageClass))
#define META_IS_STAGE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_STAGE))
#define META_IS_STAGE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), META_TYPE_STAGE))
#define META_STAGE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), META_TYPE_STAGE, MetaStageClass))
typedef struct _MetaStage MetaStage;
typedef struct _MetaStageClass MetaStageClass;
struct _MetaStageClass
{
ClutterStageClass parent_class;
};
struct _MetaStage
{
ClutterStage parent;
};
GType meta_stage_get_type (void) G_GNUC_CONST;
ClutterActor *meta_stage_new (void);
void meta_stage_set_cursor (MetaStage *stage,
CoglTexture *texture,
MetaRectangle *rect);
void meta_stage_set_active (MetaStage *stage,
gboolean is_active);
G_END_DECLS
#endif /* META_STAGE_H */