static void update_cogl_x11_event_mask (CoglOnscreen *onscreen, uint32_t event_mask, void *user_data) { Display *xdpy = user_data; XSetWindowAttributes attrs; uint32_t xwin; attrs.event_mask = event_mask | X11_FOREIGN_EVENT_MASK; xwin = cogl_x11_onscreen_get_window_xid (onscreen); XChangeWindowAttributes (xdpy, (Window)xwin, CWEventMask, &attrs); }
static gboolean clutter_stage_x11_realize (ClutterStageWindow *stage_window) { ClutterStageX11 *stage_x11 = CLUTTER_STAGE_X11 (stage_window); ClutterStageCogl *stage_cogl = CLUTTER_STAGE_COGL (stage_window); ClutterBackend *backend = CLUTTER_BACKEND (stage_cogl->backend); ClutterBackendX11 *backend_x11 = CLUTTER_BACKEND_X11 (backend); ClutterDeviceManager *device_manager; int event_flags; gfloat width, height; clutter_actor_get_size (CLUTTER_ACTOR (stage_cogl->wrapper), &width, &height); stage_cogl->onscreen = cogl_onscreen_new (backend->cogl_context, width, height); /* We just created a window of the size of the actor. No need to fix the size of the stage, just update it. */ stage_x11->xwin_width = width; stage_x11->xwin_height = height; if (stage_x11->xwin != None) { cogl_x11_onscreen_set_foreign_window_xid (stage_cogl->onscreen, stage_x11->xwin, _clutter_stage_x11_update_foreign_event_mask, stage_x11); } /* Chain to the parent class now. ClutterStageCogl will call cogl_framebuffer_allocate, which will create the X Window we need */ if (!(clutter_stage_window_parent_iface->realize (stage_window))) return FALSE; if (stage_x11->xwin == None) stage_x11->xwin = cogl_x11_onscreen_get_window_xid (stage_cogl->onscreen); if (clutter_stages_by_xid == NULL) clutter_stages_by_xid = g_hash_table_new (NULL, NULL); g_hash_table_insert (clutter_stages_by_xid, GINT_TO_POINTER (stage_x11->xwin), stage_x11); set_wm_pid (stage_x11); set_wm_title (stage_x11); set_cursor_visible (stage_x11); /* the masks for the events we want to select on a stage window; * KeyPressMask and KeyReleaseMask are necessary even with XI1 * because key events are broken with that extension, and will * be fixed by XI2 */ event_flags = CLUTTER_STAGE_X11_EVENT_MASK; /* we unconditionally select input events even with event retrieval * disabled because we need to guarantee that the Clutter internal * state is maintained when calling clutter_x11_handle_event() without * requiring applications or embedding toolkits to select events * themselves. if we did that, we'd have to document the events to be * selected, and also update applications and embedding toolkits each * time we added a new mask, or a new class of events. * * see: http://bugzilla.clutter-project.org/show_bug.cgi?id=998 * for the rationale of why we did conditional selection. it is now * clear that a compositor should clear out the input region, since * it cannot assume a perfectly clean slate coming from us. * * see: http://bugzilla.clutter-project.org/show_bug.cgi?id=2228 * for an example of things that break if we do conditional event * selection. */ XSelectInput (backend_x11->xdpy, stage_x11->xwin, event_flags); /* input events also depent on the actual device, so we need to * use the device manager to let every device select them, using * the event mask we passed to XSelectInput as the template */ device_manager = clutter_device_manager_get_default (); if (G_UNLIKELY (device_manager != NULL)) { _clutter_device_manager_select_stage_events (device_manager, stage_cogl->wrapper, event_flags); g_signal_connect (device_manager, "device-added", G_CALLBACK (stage_events_device_added), stage_window); } clutter_stage_x11_fix_window_size (stage_x11, stage_x11->xwin_width, stage_x11->xwin_height); clutter_stage_x11_set_wm_protocols (stage_x11); if (stage_x11->fullscreen_on_realize) { stage_x11->fullscreen_on_realize = FALSE; clutter_stage_x11_set_fullscreen (stage_window, TRUE); } CLUTTER_NOTE (BACKEND, "Successfully realized stage"); return TRUE; }