From 2aad56b949b86b4f1d0eab6d3d3b0d5491e8515b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jonas=20Dre=C3=9Fler?= Date: Sat, 5 Mar 2022 23:43:29 +0100 Subject: [PATCH 1/2] clutter: Pass target actor of events to event filter functions We'll need the additional context of which actor the event will be emitted to in mutters event filter (see next commit), so pass that target actor to the event filters that are installed. Part-of: --- clutter/clutter/clutter-event-private.h | 3 ++- clutter/clutter/clutter-event.c | 5 +++-- clutter/clutter/clutter-event.h | 2 ++ clutter/clutter/clutter-main.c | 12 +++++++++++- clutter/clutter/clutter-stage.c | 6 +++--- src/core/events.c | 6 ++++-- 6 files changed, 25 insertions(+), 9 deletions(-) diff --git a/clutter/clutter/clutter-event-private.h b/clutter/clutter/clutter-event-private.h index 011241ce18..69fdf24ed6 100644 --- a/clutter/clutter/clutter-event-private.h +++ b/clutter/clutter/clutter-event-private.h @@ -14,7 +14,8 @@ CLUTTER_EXPORT void _clutter_process_event (ClutterEvent *event); CLUTTER_EXPORT -gboolean _clutter_event_process_filters (ClutterEvent *event); +gboolean _clutter_event_process_filters (ClutterEvent *event, + ClutterActor *event_actor); /* clears the event queue inside the main context */ void _clutter_clear_events_queue (void); diff --git a/clutter/clutter/clutter-event.c b/clutter/clutter/clutter-event.c index b1a5b6252f..0433a1ec98 100644 --- a/clutter/clutter/clutter-event.c +++ b/clutter/clutter/clutter-event.c @@ -1772,7 +1772,8 @@ clutter_event_is_pointer_emulated (const ClutterEvent *event) } gboolean -_clutter_event_process_filters (ClutterEvent *event) +_clutter_event_process_filters (ClutterEvent *event, + ClutterActor *event_actor) { ClutterMainContext *context = _clutter_context_get_default (); GList *l, *next; @@ -1789,7 +1790,7 @@ _clutter_event_process_filters (ClutterEvent *event) if (event_filter->stage && event_filter->stage != event->any.stage) continue; - if (event_filter->func (event, event_filter->user_data) == CLUTTER_EVENT_STOP) + if (event_filter->func (event, event_actor, event_filter->user_data) == CLUTTER_EVENT_STOP) return CLUTTER_EVENT_STOP; } diff --git a/clutter/clutter/clutter-event.h b/clutter/clutter/clutter-event.h index 5a8e3c116a..94595542cd 100644 --- a/clutter/clutter/clutter-event.h +++ b/clutter/clutter/clutter-event.h @@ -615,6 +615,7 @@ union _ClutterEvent /** * ClutterEventFilterFunc: * @event: the event that is going to be emitted + * @event_actor: the current device actor of the events device * @user_data: the data pointer passed to clutter_event_add_filter() * * A function pointer type used by event filters that are added with @@ -628,6 +629,7 @@ union _ClutterEvent * Since: 1.18 */ typedef gboolean (* ClutterEventFilterFunc) (const ClutterEvent *event, + ClutterActor *event_actor, gpointer user_data); CLUTTER_EXPORT diff --git a/clutter/clutter/clutter-main.c b/clutter/clutter/clutter-main.c index 402ca65547..e066e5aebe 100644 --- a/clutter/clutter/clutter-main.c +++ b/clutter/clutter/clutter-main.c @@ -741,6 +741,8 @@ update_device_for_event (ClutterStage *stage, void clutter_do_event (ClutterEvent *event) { + ClutterActor *event_actor = NULL; + /* we need the stage for the event */ if (event->any.stage == NULL) { @@ -765,7 +767,15 @@ clutter_do_event (ClutterEvent *event) break; } - if (_clutter_event_process_filters (event)) + if (event->any.type != CLUTTER_DEVICE_ADDED && + event->any.type != CLUTTER_DEVICE_REMOVED && + event->any.type != CLUTTER_NOTHING && + event->any.type != CLUTTER_EVENT_LAST) + { + event_actor = clutter_stage_get_event_actor (event->any.stage, event); + } + + if (_clutter_event_process_filters (event, event_actor)) return; /* Instead of processing events when received, we queue them up to diff --git a/clutter/clutter/clutter-stage.c b/clutter/clutter/clutter-stage.c index f34a424797..5cd09a2c44 100644 --- a/clutter/clutter/clutter-stage.c +++ b/clutter/clutter/clutter-stage.c @@ -3478,7 +3478,7 @@ clutter_stage_update_device (ClutterStage *stage, CLUTTER_EVENT_NONE, old_actor, new_actor, point, time_ms); - if (!_clutter_event_process_filters (event)) + if (!_clutter_event_process_filters (event, old_actor)) _clutter_actor_handle_event (old_actor, root, event); clutter_event_free (event); @@ -3492,7 +3492,7 @@ clutter_stage_update_device (ClutterStage *stage, CLUTTER_EVENT_NONE, new_actor, old_actor, point, time_ms); - if (!_clutter_event_process_filters (event)) + if (!_clutter_event_process_filters (event, new_actor)) _clutter_actor_handle_event (new_actor, root, event); clutter_event_free (event); @@ -3676,7 +3676,7 @@ clutter_stage_notify_grab_on_pointer_entry (ClutterStage *stage, grab_actor : old_grab_actor, entry->coords, CLUTTER_CURRENT_TIME); - if (!_clutter_event_process_filters (event)) + if (!_clutter_event_process_filters (event, entry->current_actor)) _clutter_actor_handle_event (deepmost, topmost, event); clutter_event_free (event); } diff --git a/src/core/events.c b/src/core/events.c index 8363d9a3d3..7dfd974563 100644 --- a/src/core/events.c +++ b/src/core/events.c @@ -213,7 +213,8 @@ maybe_unfreeze_pointer_events (MetaBackend *backend, static gboolean meta_display_handle_event (MetaDisplay *display, - const ClutterEvent *event) + const ClutterEvent *event, + ClutterActor *event_actor) { MetaBackend *backend = meta_get_backend (); MetaWindow *window = NULL; @@ -540,11 +541,12 @@ meta_display_handle_event (MetaDisplay *display, static gboolean event_callback (const ClutterEvent *event, + ClutterActor *event_actor, gpointer data) { MetaDisplay *display = data; - return meta_display_handle_event (display, event); + return meta_display_handle_event (display, event, event_actor); } void -- GitLab From 0280b0aaa563db65bf79a3643f6a9e8e76bfe458 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jonas=20Dre=C3=9Fler?= Date: Sat, 5 Mar 2022 23:46:24 +0100 Subject: [PATCH 2/2] events: Use the event target actor to determine window for event We use get_window_for_event() to check whether an event happened on top of a window or on top of shell UI to decide whether to bypass delivering the event to Clutter. In case of crossing events though, we can't just use the device actor to determine whether to forward the event to Clutter or not: We do want to forward CLUTTER_LEAVE events which happened on top of shell UI. In that case the device actor is already a window actor (the pointer already is on top of a window), but the shell still needs to get the LEAVE crossing event. Since the event source actor got removed from the detail of ClutterEvent, the context we're looking for (which actor did the pointer leave) is now the target actor that the event gets emitted to. Since the last commit, we also made event filters aware of this context by passing the target actor to them, so use this context now to determine whether we're on top of a window or not. Part-of: --- src/core/events.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/src/core/events.c b/src/core/events.c index 7dfd974563..0dc3a73222 100644 --- a/src/core/events.c +++ b/src/core/events.c @@ -81,23 +81,20 @@ stage_has_grab (MetaDisplay *display) static MetaWindow * get_window_for_event (MetaDisplay *display, - const ClutterEvent *event) + const ClutterEvent *event, + ClutterActor *event_actor) { switch (display->event_route) { case META_EVENT_ROUTE_NORMAL: { - ClutterActor *target; MetaWindowActor *window_actor; /* Always use the key focused window for key events. */ if (IS_KEY_EVENT (event)) return stage_has_key_focus () ? display->focus_window : NULL; - target = clutter_stage_get_device_actor (clutter_event_get_stage (event), - clutter_event_get_device (event), - clutter_event_get_event_sequence (event)); - window_actor = meta_window_actor_from_actor (target); + window_actor = meta_window_actor_from_actor (event_actor); if (window_actor) return meta_window_actor_get_meta_window (window_actor); else @@ -339,7 +336,7 @@ meta_display_handle_event (MetaDisplay *display, } #endif - window = get_window_for_event (display, event); + window = get_window_for_event (display, event, event_actor); display->current_time = event->any.time; -- GitLab