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Handle input area set to full screen or reset during start-up

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info->pending_input_region needed to be destroyed in
mutter_set_stage_input_region() before it was set to something
else or before it was reset to be full screen (region == None).

Set the initial input area to an empty region by
setting info->pending_input_region to an empty region by default
and setting it to None or a new region if a new input region is
specified.

Remove show_overlay_window() function that was used to set an empty
input region on start-up, and uses a call to do_set_stage_input_region()
with info->pending_input_region as an argument instead.
This commit is contained in:
Marina Zhurakhinskaya 2009-06-19 16:42:10 -04:00
parent c012105b90
commit 0a863b8c2b
1 changed files with 46 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

71
src/compositor/mutter/compositor-mutter.c
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@ -1738,21 +1738,6 @@ process_property_notify (Mutter *compositor,
DEBUG_TRACE ("process_property_notify: unknown\n");
}
static void
show_overlay_window (Display *xdisplay, Window xstage, Window xoverlay)
{
XserverRegion region;
region = XFixesCreateRegion (xdisplay, NULL, 0);
XFixesSetWindowShapeRegion (xdisplay, xoverlay, ShapeBounding, 0, 0, 0);
XFixesSetWindowShapeRegion (xdisplay, xoverlay, ShapeInput, 0, 0, region);
XFixesSetWindowShapeRegion (xdisplay, xstage, ShapeInput, 0, 0, region);
XFixesDestroyRegion (xdisplay, region);
}
static Window
get_output_window (MetaScreen *screen)
{
@ -1828,6 +1813,19 @@ mutter_get_windows (MetaScreen *screen)
return info->windows;
}
static void
do_set_stage_input_region (MetaScreen *screen,
XserverRegion region)
{
MetaCompScreen *info = meta_screen_get_compositor_data (screen);
MetaDisplay *display = meta_screen_get_display (screen);
Display *xdpy = meta_display_get_xdisplay (display);
Window xstage = clutter_x11_get_stage_window (CLUTTER_STAGE (info->stage));
XFixesSetWindowShapeRegion (xdpy, xstage, ShapeInput, 0, 0, region);
XFixesSetWindowShapeRegion (xdpy, info->output, ShapeInput, 0, 0, region);
}
void
mutter_set_stage_input_region (MetaScreen *screen,
XserverRegion region)
@ -1838,16 +1836,23 @@ mutter_set_stage_input_region (MetaScreen *screen,
if (info->stage && info->output)
{
Window xstage = clutter_x11_get_stage_window (CLUTTER_STAGE (info->stage));
XFixesSetWindowShapeRegion (xdpy, xstage, ShapeInput, 0, 0, region);
XFixesSetWindowShapeRegion (xdpy, info->output, ShapeInput, 0, 0, region);
do_set_stage_input_region (screen, region);
}
else if (region != None)
else
{
info->pending_input_region = XFixesCreateRegion (xdpy, NULL, 0);
XFixesCopyRegion (xdpy, info->pending_input_region, region);
}
/* Reset info->pending_input_region if one existed before and set the new
* one to use it later. */
if (info->pending_input_region)
{
XFixesDestroyRegion (xdpy, info->pending_input_region);
info->pending_input_region = None;
}
if (region != None)
{
info->pending_input_region = XFixesCreateRegion (xdpy, NULL, 0);
XFixesCopyRegion (xdpy, info->pending_input_region, region);
}
}
}
void
@ -1898,6 +1903,14 @@ clutter_cmp_manage_screen (MetaCompositor *compositor,
}
info = g_new0 (MetaCompScreen, 1);
/*
* We use an empty input region for Clutter as a default because that allows
* the user to interact with all the windows displayed on the screen.
* We have to initialize info->pending_input_region to an empty region explicitly,
* because None value is used to mean that the whole screen is an input region.
*/
info->pending_input_region = XFixesCreateRegion (xdisplay, NULL, 0);
info->screen = screen;
meta_screen_set_compositor_data (screen, info);
@ -1962,11 +1975,19 @@ clutter_cmp_manage_screen (MetaCompositor *compositor,
info->output = get_output_window (screen);
XReparentWindow (xdisplay, xwin, info->output, 0, 0);
show_overlay_window (xdisplay, xwin, info->output);
/* Make sure there isn't any left-over output shape on the
* overlay window by setting the whole screen to be an
* output region.
*
* Note: there doesn't seem to be any real chance of that
* because the X server will destroy the overlay window
* when the last client using it exits.
*/
XFixesSetWindowShapeRegion (xdisplay, info->output, ShapeBounding, 0, 0, None);
do_set_stage_input_region (screen, info->pending_input_region);
if (info->pending_input_region != None)
{
mutter_set_stage_input_region (screen, info->pending_input_region);
XFixesDestroyRegion (xdisplay, info->pending_input_region);
info->pending_input_region = None;
}