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Pass event to clutter when the plugin doesn't have xevent_filter

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With recent changes, Clutter no longer sets up the viewport correctly,
unless it receives ConfigureNotify events. If there is a plugin with
an xevent_filter function, then it's that plugins responsibility to pass
the event to Clutter if it doesn't want it. If there is no plugin,
or the plugin doesn't have an xevent_filter function, then we should
call clutter_x11_handle_event() ourselves.

http://bugzilla.gnome.org/show_bug.cgi?id=589419
This commit is contained in:
Owen W. Taylor 2009-07-22 14:37:43 -04:00
parent e84bf7144c
commit d91d503eb2
1 changed files with 25 additions and 0 deletions
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25
src/compositor/mutter-plugin-manager.c
View File

@ -30,6 +30,8 @@
#include <string.h>
#include <clutter/x11/clutter-x11.h>
/*
* There is only one instace of each module per the process.
*/
@ -585,12 +587,31 @@ mutter_plugin_manager_xevent_filter (MutterPluginManager *plugin_mgr,
XEvent *xev)
{
GList *l;
gboolean have_plugin_xevent_func;
if (!plugin_mgr)
return FALSE;
l = plugin_mgr->plugins;
/* We need to make sure that clutter gets certain events, like
* ConfigureNotify on the stage window. If there is a plugin that
* provides an xevent_filter function, then it's the responsibility
* of that plugin to pass events to Clutter. Otherwise, we send the
* event directly to Clutter ourselves.
*
* What happens if there are two plugins with xevent_filter functions
* is undefined; in general, multiple competing plugins are something
* we don't support well or care much about.
*
* FIXME: Really, we should just always handle sending the event to
* clutter if a plugin doesn't report the event as handled by
* returning TRUE, but it doesn't seem worth breaking compatibility
* of the plugin interface right now to achieve this; the way it is
* now works fine in practice.
*/
have_plugin_xevent_func = FALSE;
while (l)
{
MutterPlugin *plugin = l->data;
@ -598,6 +619,7 @@ mutter_plugin_manager_xevent_filter (MutterPluginManager *plugin_mgr,
if (klass->xevent_filter)
{
have_plugin_xevent_func = TRUE;
if (klass->xevent_filter (plugin, xev) == TRUE)
return TRUE;
}
@ -605,5 +627,8 @@ mutter_plugin_manager_xevent_filter (MutterPluginManager *plugin_mgr,
l = l->next;
}
if (!have_plugin_xevent_func)
return clutter_x11_handle_event (xev) != CLUTTER_X11_FILTER_CONTINUE;
return FALSE;
}