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device-manager/xi2: Fix device hotplugging

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Hierarchy and Device changed events come through with the X window set
to be the root window, not the stage window. We need to whitelist them
so that we can actually support hotplugging and device changes.
This commit is contained in:
Emmanuele Bassi
2011-01-21 11:41:36 +00:00
parent 7514f5fe92
commit 0e99346915
2 changed files with 95 additions and 20 deletions
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32
clutter/x11/clutter-device-manager-xi2.c
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@@ -235,9 +235,6 @@ add_device (ClutterDeviceManagerXI2 *manager_xi2,
/* we don't go through the DeviceManager::add_device() vfunc because
* that emits the signal, and we only do it conditionally
*
* FIXME: add a boolean "emit_signal" argument to the add_device()
* wrapper in ClutterDeviceManager, and emit the signal only if true
*/
g_hash_table_replace (manager_xi2->devices_by_id,
GINT_TO_POINTER (info->deviceid),
@@ -329,6 +326,8 @@ translate_hierarchy_event (ClutterBackendX11 *backend_x11,
XIDeviceInfo *info;
int n_devices;
CLUTTER_NOTE (EVENT, "Hierarchy event: device enabled");
info = XIQueryDevice (backend_x11->xdpy,
ev->info[i].deviceid,
&n_devices);
@@ -336,6 +335,8 @@ translate_hierarchy_event (ClutterBackendX11 *backend_x11,
}
else if (ev->info[i].flags & XIDeviceDisabled)
{
CLUTTER_NOTE (EVENT, "Hierarchy event: device disabled");
remove_device (manager_xi2, ev->info[i].deviceid);
}
else if ((ev->info[i].flags & XISlaveAttached) ||
@@ -345,6 +346,11 @@ translate_hierarchy_event (ClutterBackendX11 *backend_x11,
XIDeviceInfo *info;
int n_devices;
CLUTTER_NOTE (EVENT, "Hierarchy event: slave %s",
(ev->info[i].flags & XISlaveAttached)
? "attached"
: "detached");
slave = g_hash_table_lookup (manager_xi2->devices_by_id,
GINT_TO_POINTER (ev->info[i].deviceid));
master = clutter_input_device_get_associated_device (slave);
@@ -533,8 +539,8 @@ clutter_device_manager_xi2_translate_event (ClutterEventTranslator *translator,
ClutterDeviceManagerXI2 *manager_xi2 = CLUTTER_DEVICE_MANAGER_XI2 (translator);
ClutterTranslateReturn retval = CLUTTER_TRANSLATE_CONTINUE;
ClutterBackendX11 *backend_x11;
ClutterStageX11 *stage_x11;
ClutterStage *stage;
ClutterStageX11 *stage_x11 = NULL;
ClutterStage *stage = NULL;
ClutterInputDevice *device;
XGenericEventCookie *cookie;
XIEvent *xi_event;
@@ -558,15 +564,19 @@ clutter_device_manager_xi2_translate_event (ClutterEventTranslator *translator,
xi_event = (XIEvent *) cookie->data;
stage = get_event_stage (translator, xi_event);
if (stage == NULL || CLUTTER_ACTOR_IN_DESTRUCTION (stage))
if (!(xi_event->evtype == XI_HierarchyChanged ||
xi_event->evtype == XI_DeviceChanged))
{
XFreeEventData (backend_x11->xdpy, cookie);
return CLUTTER_TRANSLATE_CONTINUE;
stage = get_event_stage (translator, xi_event);
if (stage == NULL || CLUTTER_ACTOR_IN_DESTRUCTION (stage))
{
XFreeEventData (backend_x11->xdpy, cookie);
return CLUTTER_TRANSLATE_CONTINUE;
}
else
stage_x11 = CLUTTER_STAGE_X11 (_clutter_stage_get_window (stage));
}
stage_x11 = CLUTTER_STAGE_X11 (_clutter_stage_get_window (stage));
event->any.stage = stage;
switch (xi_event->evtype)