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x11: Store the group inside the event platform data
Now that we have private, per-event platform data, we can start putting it to good use. The first, most simple use is to store the key group given the event's modifiers. Since we assume a modern X11, we use XKB to retrieve it, or we simply fall back to 0 by default. The data is exposed as a ClutterX11-specific function, within the sanctioned clutter_x11_* namespace.
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@ -475,6 +475,29 @@ clutter_backend_x11_get_features (ClutterBackend *backend)
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return CLUTTER_FEATURE_STAGE_USER_RESIZE | CLUTTER_FEATURE_STAGE_CURSOR;
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}
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static void
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clutter_backend_x11_copy_event_data (ClutterBackend *backend,
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ClutterEvent *src,
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ClutterEvent *dest)
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{
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gpointer event_x11;
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event_x11 = _clutter_event_get_platform_data (src);
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if (event_x11 != NULL)
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_clutter_event_set_platform_data (dest, _clutter_event_x11_copy (event_x11));
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}
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static void
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clutter_backend_x11_free_event_data (ClutterBackend *backend,
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ClutterEvent *event)
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{
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gpointer event_x11;
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event_x11 = _clutter_event_get_platform_data (event);
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if (event_x11 != NULL)
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_clutter_event_x11_free (event_x11);
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}
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gboolean
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clutter_backend_x11_handle_event (ClutterBackendX11 *backend_x11,
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XEvent *xevent)
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@ -516,6 +539,8 @@ clutter_backend_x11_class_init (ClutterBackendX11Class *klass)
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backend_class->add_options = clutter_backend_x11_add_options;
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backend_class->get_features = clutter_backend_x11_get_features;
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backend_class->get_device_manager = clutter_backend_x11_get_device_manager;
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backend_class->copy_event_data = clutter_backend_x11_copy_event_data;
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backend_class->free_event_data = clutter_backend_x11_free_event_data;
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backendx11_class->handle_event = clutter_backend_x11_handle_event;
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}
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@ -109,6 +109,9 @@ struct _ClutterBackendX11Class
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XEvent *xevent);
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};
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/* platform-specific event data */
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typedef struct _ClutterEventX11 ClutterEventX11;
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void _clutter_backend_x11_events_init (ClutterBackend *backend);
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void _clutter_backend_x11_events_uninit (ClutterBackend *backend);
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@ -146,6 +149,15 @@ _clutter_x11_get_device_for_xid (XID id);
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void
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_clutter_x11_select_events (Window xwin);
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ClutterEventX11 *
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_clutter_event_x11_new (void);
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ClutterEventX11 *
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_clutter_event_x11_copy (ClutterEventX11 *event_x11);
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void
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_clutter_event_x11_free (ClutterEventX11 *event_x11);
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G_END_DECLS
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#endif /* __CLUTTER_BACKEND_X11_H__ */
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@ -54,6 +54,10 @@
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#include <X11/extensions/XInput.h>
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#endif
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#ifdef HAVE_XKB
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#include <X11/XKBlib.h>
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#endif
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/* XEMBED protocol support for toolkit embedding */
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#define XEMBED_MAPPED (1 << 0)
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#define MAX_SUPPORTED_XEMBED_VERSION 1
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@ -85,6 +89,34 @@ struct _ClutterEventSource
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GPollFD event_poll_fd;
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};
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struct _ClutterEventX11
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{
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/* additional fields for Key events */
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gint key_group;
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};
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ClutterEventX11 *
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_clutter_event_x11_new (void)
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{
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return g_slice_new0 (ClutterEventX11);
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}
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ClutterEventX11 *
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_clutter_event_x11_copy (ClutterEventX11 *event_x11)
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{
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if (event_x11 != NULL)
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return g_slice_dup (ClutterEventX11, event_x11);
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return NULL;
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}
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void
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_clutter_event_x11_free (ClutterEventX11 *event_x11)
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{
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if (event_x11 != NULL)
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g_slice_free (ClutterEventX11, event_x11);
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}
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static gboolean clutter_event_prepare (GSource *source,
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gint *timeout);
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static gboolean clutter_event_check (GSource *source);
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@ -300,12 +332,30 @@ translate_key_event (ClutterBackend *backend,
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ClutterEvent *event,
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XEvent *xevent)
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{
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char buffer[256+1];
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ClutterEventX11 *event_x11;
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char buffer[256 + 1];
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int n;
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CLUTTER_NOTE (EVENT, "Translating key %s event",
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xevent->xany.type == KeyPress ? "press" : "release");
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/* KeyEvents have platform specific data associated to them */
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event_x11 = _clutter_event_x11_new ();
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_clutter_event_set_platform_data (event, event_x11);
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#ifdef HAVE_XKB
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event_x11->key_group = XkbGroupForCoreState (xevent->xkey.state);
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CLUTTER_NOTE (EVENT, "Key group: %d (xkb enabled: yes)",
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event_x11->key_group);
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#else
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/* we force the key group to 0 */
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event_x11->key_group = 0;
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CLUTTER_NOTE (EVENT, "Key group: %d (xkb enabled: no)",
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event_x11->key_group);
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#endif /* HAVE_XKB */
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event->key.time = xevent->xkey.time;
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event->key.modifier_state = (ClutterModifierType) xevent->xkey.state;
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event->key.hardware_keycode = xevent->xkey.keycode;
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@ -326,8 +376,8 @@ translate_key_event (ClutterBackend *backend,
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(event->key.unicode_value != -2))
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return;
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}
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event->key.unicode_value = (gunichar)'\0';
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else
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event->key.unicode_value = (gunichar)'\0';
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}
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static gboolean
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@ -509,7 +559,9 @@ event_translate (ClutterBackend *backend,
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if ((stage_x11->state & CLUTTER_STAGE_STATE_FULLSCREEN) ||
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(stage_x11->xwin_width != xevent->xconfigure.width) ||
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(stage_x11->xwin_height != xevent->xconfigure.height))
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clutter_actor_queue_relayout (CLUTTER_ACTOR (stage));
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{
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clutter_actor_queue_relayout (CLUTTER_ACTOR (stage));
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}
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/* If we're fullscreened, we want these variables to
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* represent the size of the window before it was set
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@ -1031,9 +1083,7 @@ events_queue (ClutterBackend *backend)
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g_queue_push_head (clutter_context->events_queue, event);
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}
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else
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{
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clutter_event_free (event);
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}
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clutter_event_free (event);
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}
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}
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@ -1209,3 +1259,29 @@ clutter_x11_get_current_event_time (void)
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return CLUTTER_BACKEND_X11 (backend)->last_event_time;
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}
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/**
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* clutter_x11_event_get_key_group:
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* @event: a #ClutterEvent of type %CLUTTER_KEY_PRESS or %CLUTTER_KEY_RELEASE
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*
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* Retrieves the group for the modifiers set in @event
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*
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* Return value: the group id
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*
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* Since: 1.4
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*/
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gint
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clutter_x11_event_get_key_group (const ClutterEvent *event)
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{
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ClutterEventX11 *event_x11;
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g_return_val_if_fail (event != NULL, 0);
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g_return_val_if_fail (event->type == CLUTTER_KEY_PRESS ||
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event->type == CLUTTER_KEY_RELEASE, 0);
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event_x11 = _clutter_event_get_platform_data (event);
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if (event_x11 == NULL)
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return 0;
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return event_x11->key_group;
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}
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@ -141,6 +141,8 @@ gboolean clutter_x11_get_use_argb_visual (void);
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Time clutter_x11_get_current_event_time (void);
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gint clutter_x11_event_get_key_group (const ClutterEvent *event);
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G_END_DECLS
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#endif /* __CLUTTER_X11_H__ */
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