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MetaCursorTracker: extend with query pointer abilities

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We need an abstraction in gnome-shell for XQueryPointer, and
MetaCursorTracker seems a good place for it.

https://bugzilla.gnome.org/show_bug.cgi?id=707474
This commit is contained in:
Giovanni Campagna 2013-09-04 16:50:19 +02:00
parent 450afbaf51
commit 6f4f611ba8
2 changed files with 64 additions and 1 deletions
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59
src/core/meta-cursor-tracker.c
View File

@ -24,7 +24,9 @@
/**
* SECTION:cursor-tracker
* @title: MetaCursorTracker
* @short_description: Mutter cursor tracking helper
* @short_description: Mutter cursor tracking helper. Originally only
* tracking the cursor image, now more of a "core
* pointer abstraction"
*/
#include <config.h>
@ -35,6 +37,8 @@
#include <cogl/cogl.h>
#include <clutter/clutter.h>
#include <gdk/gdk.h>
#include <X11/extensions/Xfixes.h>
#include "meta-cursor-tracker-private.h"
@ -456,3 +460,56 @@ meta_cursor_tracker_queue_redraw (MetaCursorTracker *tracker,
clutter_actor_queue_redraw_with_clip (stage, &tracker->current_rect);
}
static void
get_pointer_position_gdk (int *x,
int *y,
int *mods)
{
GdkDeviceManager *gmanager;
GdkDevice *gdevice;
GdkScreen *gscreen;
gmanager = gdk_display_get_device_manager (gdk_display_get_default ());
gdevice = gdk_device_manager_get_client_pointer (gmanager);
gdk_device_get_position (gdevice, &gscreen, x, y);
gdk_device_get_state (gdevice,
gdk_screen_get_root_window (gscreen),
NULL, (GdkModifierType*)mods);
}
static void
get_pointer_position_clutter (int *x,
int *y,
int *mods)
{
ClutterDeviceManager *cmanager;
ClutterInputDevice *cdevice;
ClutterPoint point;
cmanager = clutter_device_manager_get_default ();
cdevice = clutter_device_manager_get_core_device (cmanager, CLUTTER_POINTER_DEVICE);
clutter_input_device_get_coords (cdevice, NULL, &point);
*x = point.x;
*y = point.y;
*mods = clutter_input_device_get_modifier_state (cdevice);
}
void
meta_cursor_tracker_get_pointer (MetaCursorTracker *tracker,
int *x,
int *y,
ClutterModifierType *mods)
{
/* We can't use the clutter interface when not running as a wayland compositor,
because we need to query the server, rather than using the last cached value.
OTOH, on wayland we can't use GDK, because that only sees the events
we forward to xwayland.
*/
if (meta_is_wayland_compositor ())
get_pointer_position_clutter (x, y, (int*)mods);
else
get_pointer_position_gdk (x, y, (int*)mods);
}

6
src/meta/meta-cursor-tracker.h
View File

@ -28,6 +28,7 @@
#include <meta/types.h>
#include <meta/workspace.h>
#include <cogl/cogl.h>
#include <clutter/clutter.h>
#define META_TYPE_CURSOR_TRACKER (meta_cursor_tracker_get_type ())
#define META_CURSOR_TRACKER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_CURSOR_TRACKER, MetaCursorTracker))
@ -47,4 +48,9 @@ void meta_cursor_tracker_get_hot (MetaCursorTracker *tracker,
int *y);
CoglTexture *meta_cursor_tracker_get_sprite (MetaCursorTracker *tracker);
void meta_cursor_tracker_get_pointer (MetaCursorTracker *tracker,
int *x,
int *y,
ClutterModifierType *mods);
#endif