/* gdkevents-quartz.c * * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald * Copyright (C) 1998-2002 Tor Lillqvist * Copyright (C) 2005-2008 Imendio AB * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library. If not, see . */ #include "config.h" #include #include #include #include #import #include #include #include "gdkscreen.h" #include "gdkkeysyms.h" #include "gdkquartz.h" #include "gdkquartzdisplay.h" #include "gdkprivate-quartz.h" #include "gdkquartzdevicemanager-core.h" #define GRIP_WIDTH 15 #define GRIP_HEIGHT 15 #define GDK_LION_RESIZE 5 #define WINDOW_IS_TOPLEVEL(window) \ (GDK_WINDOW_TYPE (window) != GDK_WINDOW_CHILD && \ GDK_WINDOW_TYPE (window) != GDK_WINDOW_FOREIGN && \ GDK_WINDOW_TYPE (window) != GDK_WINDOW_OFFSCREEN) /* This is the window corresponding to the key window */ static GdkWindow *current_keyboard_window; static void append_event (GdkEvent *event, gboolean windowing); static GdkWindow *find_toplevel_under_pointer (GdkDisplay *display, NSPoint screen_point, gint *x, gint *y); static void gdk_quartz_ns_notification_callback (CFNotificationCenterRef center, void *observer, CFStringRef name, const void *object, CFDictionaryRef userInfo) { GdkEvent new_event; new_event.type = GDK_SETTING; new_event.setting.window = gdk_screen_get_root_window (_gdk_screen); new_event.setting.send_event = FALSE; new_event.setting.action = GDK_SETTING_ACTION_CHANGED; new_event.setting.name = NULL; /* Translate name */ if (CFStringCompare (name, CFSTR("AppleNoRedisplayAppearancePreferenceChanged"), 0) == kCFCompareEqualTo) new_event.setting.name = "gtk-primary-button-warps-slider"; if (!new_event.setting.name) return; gdk_event_put (&new_event); } static void gdk_quartz_events_init_notifications (void) { static gboolean notifications_initialized = FALSE; if (notifications_initialized) return; notifications_initialized = TRUE; /* Initialize any handlers for notifications we want to push to GTK * through GdkEventSettings. */ /* This is an undocumented *distributed* notification to listen for changes * in scrollbar jump behavior. It is used by LibreOffice and WebKit as well. */ CFNotificationCenterAddObserver (CFNotificationCenterGetDistributedCenter (), NULL, &gdk_quartz_ns_notification_callback, CFSTR ("AppleNoRedisplayAppearancePreferenceChanged"), NULL, CFNotificationSuspensionBehaviorDeliverImmediately); } void _gdk_quartz_events_init (void) { _gdk_quartz_event_loop_init (); gdk_quartz_events_init_notifications (); current_keyboard_window = g_object_ref (_gdk_root); } gboolean _gdk_quartz_display_has_pending (GdkDisplay *display) { return (_gdk_event_queue_find_first (display) || (_gdk_quartz_event_loop_check_pending ())); } void _gdk_quartz_events_break_all_grabs (guint32 time) { GList *list, *l; GdkDeviceManager *device_manager; device_manager = gdk_display_get_device_manager (_gdk_display); list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER); for (l = list; l; l = l->next) { GdkDeviceGrabInfo *grab; grab = _gdk_display_get_last_device_grab (_gdk_display, l->data); if (grab) { grab->serial_end = 0; grab->implicit_ungrab = TRUE; } _gdk_display_device_grab_update (_gdk_display, l->data, NULL, 0); } g_list_free (list); } static void fixup_event (GdkEvent *event) { if (event->any.window) g_object_ref (event->any.window); if (((event->any.type == GDK_ENTER_NOTIFY) || (event->any.type == GDK_LEAVE_NOTIFY)) && (event->crossing.subwindow != NULL)) g_object_ref (event->crossing.subwindow); event->any.send_event = FALSE; } static void append_event (GdkEvent *event, gboolean windowing) { GList *node; fixup_event (event); node = _gdk_event_queue_append (_gdk_display, event); if (windowing) _gdk_windowing_got_event (_gdk_display, node, event, 0); } static gint gdk_event_apply_filters (NSEvent *nsevent, GdkEvent *event, GList **filters) { GList *tmp_list; GdkFilterReturn result; tmp_list = *filters; while (tmp_list) { GdkEventFilter *filter = (GdkEventFilter*) tmp_list->data; GList *node; if ((filter->flags & GDK_EVENT_FILTER_REMOVED) != 0) { tmp_list = tmp_list->next; continue; } filter->ref_count++; result = filter->function (nsevent, event, filter->data); /* get the next node after running the function since the function may add or remove a next node */ node = tmp_list; tmp_list = tmp_list->next; filter->ref_count--; if (filter->ref_count == 0) { *filters = g_list_remove_link (*filters, node); g_list_free_1 (node); g_free (filter); } if (result != GDK_FILTER_CONTINUE) return result; } return GDK_FILTER_CONTINUE; } static guint32 get_time_from_ns_event (NSEvent *event) { double time = [event timestamp]; /* cast via double->uint64 conversion to make sure that it is * wrapped on 32-bit machines when it overflows */ return (guint32) (guint64) (time * 1000.0); } static int get_mouse_button_from_ns_event (NSEvent *event) { NSInteger button; button = [event buttonNumber]; switch (button) { case 0: return 1; case 1: return 3; case 2: return 2; default: return button + 1; } } static GdkModifierType get_mouse_button_modifiers_from_ns_buttons (NSUInteger nsbuttons) { GdkModifierType modifiers = 0; if (nsbuttons & (1 << 0)) modifiers |= GDK_BUTTON1_MASK; if (nsbuttons & (1 << 1)) modifiers |= GDK_BUTTON3_MASK; if (nsbuttons & (1 << 2)) modifiers |= GDK_BUTTON2_MASK; if (nsbuttons & (1 << 3)) modifiers |= GDK_BUTTON4_MASK; if (nsbuttons & (1 << 4)) modifiers |= GDK_BUTTON5_MASK; return modifiers; } static GdkModifierType get_mouse_button_modifiers_from_ns_event (NSEvent *event) { int button; GdkModifierType state = 0; /* This maps buttons 1 to 5 to GDK_BUTTON[1-5]_MASK */ button = get_mouse_button_from_ns_event (event); if (button >= 1 && button <= 5) state = (1 << (button + 7)); return state; } static GdkModifierType get_keyboard_modifiers_from_ns_flags (NSUInteger nsflags) { GdkModifierType modifiers = 0; if (nsflags & NSAlphaShiftKeyMask) modifiers |= GDK_LOCK_MASK; if (nsflags & NSShiftKeyMask) modifiers |= GDK_SHIFT_MASK; if (nsflags & NSControlKeyMask) modifiers |= GDK_CONTROL_MASK; if (nsflags & NSAlternateKeyMask) modifiers |= GDK_MOD1_MASK; if (nsflags & NSCommandKeyMask) modifiers |= GDK_MOD2_MASK; return modifiers; } static GdkModifierType get_keyboard_modifiers_from_ns_event (NSEvent *nsevent) { return get_keyboard_modifiers_from_ns_flags ([nsevent modifierFlags]); } /* Return an event mask from an NSEvent */ static GdkEventMask get_event_mask_from_ns_event (NSEvent *nsevent) { switch ([nsevent type]) { case NSLeftMouseDown: case NSRightMouseDown: case NSOtherMouseDown: return GDK_BUTTON_PRESS_MASK; case NSLeftMouseUp: case NSRightMouseUp: case NSOtherMouseUp: return GDK_BUTTON_RELEASE_MASK; case NSMouseMoved: return GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK; case NSScrollWheel: /* Since applications that want button press events can get * scroll events on X11 (since scroll wheel events are really * button press events there), we need to use GDK_BUTTON_PRESS_MASK too. */ return GDK_SCROLL_MASK | GDK_BUTTON_PRESS_MASK; case NSLeftMouseDragged: return (GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_MOTION_MASK | GDK_BUTTON1_MOTION_MASK | GDK_BUTTON1_MASK); case NSRightMouseDragged: return (GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_MOTION_MASK | GDK_BUTTON3_MOTION_MASK | GDK_BUTTON3_MASK); case NSOtherMouseDragged: { GdkEventMask mask; mask = (GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_MOTION_MASK); if (get_mouse_button_from_ns_event (nsevent) == 2) mask |= (GDK_BUTTON2_MOTION_MASK | GDK_BUTTON2_MOTION_MASK | GDK_BUTTON2_MASK); return mask; } case NSEventTypeMagnify: case NSEventTypeRotate: return GDK_TOUCHPAD_GESTURE_MASK; case NSKeyDown: case NSKeyUp: case NSFlagsChanged: { switch (_gdk_quartz_keys_event_type (nsevent)) { case GDK_KEY_PRESS: return GDK_KEY_PRESS_MASK; case GDK_KEY_RELEASE: return GDK_KEY_RELEASE_MASK; case GDK_NOTHING: return 0; default: g_assert_not_reached (); } } break; case NSMouseEntered: return GDK_ENTER_NOTIFY_MASK; case NSMouseExited: return GDK_LEAVE_NOTIFY_MASK; default: g_assert_not_reached (); } return 0; } static void get_window_point_from_screen_point (GdkWindow *window, NSPoint screen_point, gint *x, gint *y) { NSPoint point; NSWindow *nswindow; nswindow = ((GdkWindowImplQuartz *)window->impl)->toplevel; point = [nswindow convertScreenToBase:screen_point]; *x = point.x; *y = window->height - point.y; } static gboolean is_mouse_button_press_event (NSEventType type) { switch (type) { case NSLeftMouseDown: case NSRightMouseDown: case NSOtherMouseDown: return TRUE; } return FALSE; } static GdkWindow * get_toplevel_from_ns_event (NSEvent *nsevent, NSPoint *screen_point, gint *x, gint *y) { GdkWindow *toplevel = NULL; if ([nsevent window]) { GdkQuartzView *view; NSPoint point, view_point; NSRect view_frame; view = (GdkQuartzView *)[[nsevent window] contentView]; toplevel = [view gdkWindow]; point = [nsevent locationInWindow]; view_point = [view convertPoint:point fromView:nil]; view_frame = [view frame]; /* NSEvents come in with a window set, but with window coordinates * out of window bounds. For e.g. moved events this is fine, we use * this information to properly handle enter/leave notify and motion * events. For mouse button press/release, we want to avoid forwarding * these events however, because the window they relate to is not the * window set in the event. This situation appears to occur when button * presses come in just before (or just after?) a window is resized and * also when a button press occurs on the OS X window titlebar. * * By setting toplevel to NULL, we do another attempt to get the right * toplevel window below. */ if (is_mouse_button_press_event ([nsevent type]) && (view_point.x < view_frame.origin.x || view_point.x >= view_frame.origin.x + view_frame.size.width || view_point.y < view_frame.origin.y || view_point.y >= view_frame.origin.y + view_frame.size.height)) { toplevel = NULL; /* This is a hack for button presses to break all grabs. E.g. if * a menu is open and one clicks on the title bar (or anywhere * out of window bounds), we really want to pop down the menu (by * breaking the grabs) before OS X handles the action of the title * bar button. * * Because we cannot ingest this event into GDK, we have to do it * here, not very nice. */ _gdk_quartz_events_break_all_grabs (get_time_from_ns_event (nsevent)); } else { *screen_point = [[nsevent window] convertBaseToScreen:point]; *x = point.x; *y = toplevel->height - point.y; } } if (!toplevel) { /* Fallback used when no NSWindow set. This happens e.g. when * we allow motion events without a window set in gdk_event_translate() * that occur immediately after the main menu bar was clicked/used. * This fallback will not return coordinates contained in a window's * titlebar. */ *screen_point = [NSEvent mouseLocation]; toplevel = find_toplevel_under_pointer (_gdk_display, *screen_point, x, y); } return toplevel; } static GdkEvent * create_focus_event (GdkWindow *window, gboolean in) { GdkEvent *event; GdkQuartzDeviceManagerCore *device_manager; event = gdk_event_new (GDK_FOCUS_CHANGE); event->focus_change.window = window; event->focus_change.in = in; device_manager = GDK_QUARTZ_DEVICE_MANAGER_CORE (_gdk_display->device_manager); gdk_event_set_device (event, device_manager->core_keyboard); gdk_event_set_seat (event, gdk_device_get_seat (device_manager->core_keyboard)); return event; } static void generate_motion_event (GdkWindow *window) { NSPoint screen_point; GdkEvent *event; gint x, y, x_root, y_root; GdkQuartzDeviceManagerCore *device_manager; event = gdk_event_new (GDK_MOTION_NOTIFY); event->any.window = NULL; event->any.send_event = TRUE; screen_point = [NSEvent mouseLocation]; _gdk_quartz_window_nspoint_to_gdk_xy (screen_point, &x_root, &y_root); get_window_point_from_screen_point (window, screen_point, &x, &y); event->any.type = GDK_MOTION_NOTIFY; event->motion.window = window; event->motion.time = get_time_from_ns_event ([NSApp currentEvent]); event->motion.x = x; event->motion.y = y; event->motion.x_root = x_root; event->motion.y_root = y_root; /* FIXME event->axes */ event->motion.state = _gdk_quartz_events_get_current_keyboard_modifiers () | _gdk_quartz_events_get_current_mouse_modifiers (); event->motion.is_hint = FALSE; device_manager = GDK_QUARTZ_DEVICE_MANAGER_CORE (_gdk_display->device_manager); event->motion.device = device_manager->core_pointer; gdk_event_set_seat (event, gdk_device_get_seat (device_manager->core_pointer)); append_event (event, TRUE); } /* Note: Used to both set a new focus window and to unset the old one. */ void _gdk_quartz_events_update_focus_window (GdkWindow *window, gboolean got_focus) { GdkEvent *event; if (got_focus && window == current_keyboard_window) return; /* FIXME: Don't do this when grabbed? Or make GdkQuartzNSWindow * disallow it in the first place instead? */ if (!got_focus && window == current_keyboard_window) { event = create_focus_event (current_keyboard_window, FALSE); append_event (event, FALSE); g_object_unref (current_keyboard_window); current_keyboard_window = NULL; } if (got_focus) { if (current_keyboard_window) { event = create_focus_event (current_keyboard_window, FALSE); append_event (event, FALSE); g_object_unref (current_keyboard_window); current_keyboard_window = NULL; } event = create_focus_event (window, TRUE); append_event (event, FALSE); current_keyboard_window = g_object_ref (window); /* We just became the active window. Unlike X11, Mac OS X does * not send us motion events while the window does not have focus * ("is not key"). We send a dummy motion notify event now, so that * everything in the window is set to correct state. */ generate_motion_event (window); } } void _gdk_quartz_events_send_map_event (GdkWindow *window) { GdkWindowImplQuartz *impl = GDK_WINDOW_IMPL_QUARTZ (window->impl); if (!impl->toplevel) return; if (window->event_mask & GDK_STRUCTURE_MASK) { GdkEvent event; event.any.type = GDK_MAP; event.any.window = window; gdk_event_put (&event); } } static GdkWindow * find_toplevel_under_pointer (GdkDisplay *display, NSPoint screen_point, gint *x, gint *y) { GdkWindow *toplevel; GdkPointerWindowInfo *info; info = _gdk_display_get_pointer_info (display, GDK_QUARTZ_DEVICE_MANAGER_CORE (display->device_manager)->core_pointer); toplevel = info->toplevel_under_pointer; if (toplevel && WINDOW_IS_TOPLEVEL (toplevel)) get_window_point_from_screen_point (toplevel, screen_point, x, y); if (toplevel) { /* If the coordinates are out of window bounds, this toplevel is not * under the pointer and we thus return NULL. This can occur when * toplevel under pointer has not yet been updated due to a very recent * window resize. Alternatively, we should no longer be relying on * the toplevel_under_pointer value which is maintained in gdkwindow.c. */ if (*x < 0 || *y < 0 || *x >= toplevel->width || *y >= toplevel->height) return NULL; } return toplevel; } static GdkWindow * find_toplevel_for_keyboard_event (NSEvent *nsevent) { GList *list, *l; GdkWindow *window; GdkDisplay *display; GdkQuartzView *view; GdkDeviceManager *device_manager; view = (GdkQuartzView *)[[nsevent window] contentView]; window = [view gdkWindow]; display = gdk_window_get_display (window); device_manager = gdk_display_get_device_manager (display); list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER); for (l = list; l; l = l->next) { GdkDeviceGrabInfo *grab; GdkDevice *device = l->data; if (gdk_device_get_source(device) != GDK_SOURCE_KEYBOARD) continue; grab = _gdk_display_get_last_device_grab (display, device); if (grab && grab->window && !grab->owner_events) { window = gdk_window_get_effective_toplevel (grab->window); break; } } g_list_free (list); return window; } static GdkWindow * find_toplevel_for_mouse_event (NSEvent *nsevent, gint *x, gint *y) { NSPoint screen_point; NSEventType event_type; GdkWindow *toplevel; GdkDisplay *display; GdkDeviceGrabInfo *grab; toplevel = get_toplevel_from_ns_event (nsevent, &screen_point, x, y); display = gdk_window_get_display (toplevel); event_type = [nsevent type]; /* From the docs for XGrabPointer: * * If owner_events is True and if a generated pointer event * would normally be reported to this client, it is reported * as usual. Otherwise, the event is reported with respect to * the grab_window and is reported only if selected by * event_mask. For either value of owner_events, unreported * events are discarded. */ grab = _gdk_display_get_last_device_grab (display, GDK_QUARTZ_DEVICE_MANAGER_CORE (display->device_manager)->core_pointer); if (WINDOW_IS_TOPLEVEL (toplevel) && grab) { /* Implicit grabs do not go through XGrabPointer and thus the * event mask should not be checked. */ if (!grab->implicit && (grab->event_mask & get_event_mask_from_ns_event (nsevent)) == 0) return NULL; if (grab->owner_events) { /* For owner events, we need to use the toplevel under the * pointer, not the window from the NSEvent, since that is * reported with respect to the key window, which could be * wrong. */ GdkWindow *toplevel_under_pointer; gint x_tmp, y_tmp; toplevel_under_pointer = find_toplevel_under_pointer (display, screen_point, &x_tmp, &y_tmp); if (toplevel_under_pointer) { toplevel = toplevel_under_pointer; *x = x_tmp; *y = y_tmp; } return toplevel; } else { /* Finally check the grab window. */ GdkWindow *grab_toplevel; grab_toplevel = gdk_window_get_effective_toplevel (grab->window); get_window_point_from_screen_point (grab_toplevel, screen_point, x, y); return grab_toplevel; } return NULL; } else { /* The non-grabbed case. */ GdkWindow *toplevel_under_pointer; gint x_tmp, y_tmp; /* Ignore all events but mouse moved that might be on the title * bar (above the content view). The reason is that otherwise * gdk gets confused about getting e.g. button presses with no * window (the title bar is not known to it). */ if (event_type != NSMouseMoved) if (*y < 0) return NULL; /* As for owner events, we need to use the toplevel under the * pointer, not the window from the NSEvent. */ toplevel_under_pointer = find_toplevel_under_pointer (display, screen_point, &x_tmp, &y_tmp); if (toplevel_under_pointer && WINDOW_IS_TOPLEVEL (toplevel_under_pointer)) { GdkWindowImplQuartz *toplevel_impl; toplevel = toplevel_under_pointer; toplevel_impl = (GdkWindowImplQuartz *)toplevel->impl; *x = x_tmp; *y = y_tmp; } return toplevel; } return NULL; } /* This function finds the correct window to send an event to, taking * into account grabs, event propagation, and event masks. */ static GdkWindow * find_window_for_ns_event (NSEvent *nsevent, gint *x, gint *y, gint *x_root, gint *y_root) { GdkQuartzView *view; GdkWindow *toplevel; NSPoint screen_point; NSEventType event_type; view = (GdkQuartzView *)[[nsevent window] contentView]; toplevel = get_toplevel_from_ns_event (nsevent, &screen_point, x, y); if (!toplevel) return NULL; _gdk_quartz_window_nspoint_to_gdk_xy (screen_point, x_root, y_root); event_type = [nsevent type]; switch (event_type) { case NSLeftMouseDown: case NSRightMouseDown: case NSOtherMouseDown: case NSLeftMouseUp: case NSRightMouseUp: case NSOtherMouseUp: case NSMouseMoved: case NSScrollWheel: case NSLeftMouseDragged: case NSRightMouseDragged: case NSOtherMouseDragged: case NSEventTypeMagnify: case NSEventTypeRotate: return find_toplevel_for_mouse_event (nsevent, x, y); case NSMouseEntered: case NSMouseExited: /* Only handle our own entered/exited events, not the ones for the * titlebar buttons. */ if ([view trackingRect] == [nsevent trackingNumber]) return toplevel; else return NULL; case NSKeyDown: case NSKeyUp: case NSFlagsChanged: return find_toplevel_for_keyboard_event (nsevent); default: /* Ignore everything else. */ break; } return NULL; } static void fill_crossing_event (GdkWindow *toplevel, GdkEvent *event, NSEvent *nsevent, gint x, gint y, gint x_root, gint y_root, GdkEventType event_type, GdkCrossingMode mode, GdkNotifyType detail) { GdkQuartzDeviceManagerCore *device_manager; event->any.type = event_type; event->crossing.window = toplevel; event->crossing.subwindow = NULL; event->crossing.time = get_time_from_ns_event (nsevent); event->crossing.x = x; event->crossing.y = y; event->crossing.x_root = x_root; event->crossing.y_root = y_root; event->crossing.mode = mode; event->crossing.detail = detail; event->crossing.state = get_keyboard_modifiers_from_ns_event (nsevent) | _gdk_quartz_events_get_current_mouse_modifiers (); device_manager = GDK_QUARTZ_DEVICE_MANAGER_CORE (_gdk_display->device_manager); gdk_event_set_device (event, device_manager->core_pointer); gdk_event_set_seat (event, gdk_device_get_seat (device_manager->core_pointer)); /* FIXME: Focus and button state? */ } /* fill_pinch_event handles the conversion from the two OSX gesture events NSEventTypeMagnfiy and NSEventTypeRotate to the GDK_TOUCHPAD_PINCH event. The normal behavior of the OSX events is that they produce as sequence of 1 x NSEventPhaseBegan, n x NSEventPhaseChanged, 1 x NSEventPhaseEnded This can happen for both the Magnify and the Rotate events independently. As both events are summarized in one GDK_TOUCHPAD_PINCH event sequence, a little state machine handles the case of two NSEventPhaseBegan events in a sequence, e.g. Magnify(Began), Magnify(Changed)..., Rotate(Began)... such that PINCH(STARTED), PINCH(UPDATE).... will not show a second PINCH(STARTED) event. */ #ifdef AVAILABLE_MAC_OS_X_VERSION_10_8_AND_LATER static void fill_pinch_event (GdkWindow *window, GdkEvent *event, NSEvent *nsevent, gint x, gint y, gint x_root, gint y_root) { static double last_scale = 1.0; static enum { FP_STATE_IDLE, FP_STATE_UPDATE } last_state = FP_STATE_IDLE; GdkQuartzDeviceManagerCore *device_manager; device_manager = GDK_QUARTZ_DEVICE_MANAGER_CORE (_gdk_display->device_manager); event->any.type = GDK_TOUCHPAD_PINCH; event->touchpad_pinch.window = window; event->touchpad_pinch.time = get_time_from_ns_event (nsevent); event->touchpad_pinch.x = x; event->touchpad_pinch.y = y; event->touchpad_pinch.x_root = x_root; event->touchpad_pinch.y_root = y_root; event->touchpad_pinch.state = get_keyboard_modifiers_from_ns_event (nsevent); event->touchpad_pinch.n_fingers = 2; event->touchpad_pinch.dx = 0.0; event->touchpad_pinch.dy = 0.0; gdk_event_set_device (event, device_manager->core_pointer); switch ([nsevent phase]) { case NSEventPhaseBegan: switch (last_state) { case FP_STATE_IDLE: event->touchpad_pinch.phase = GDK_TOUCHPAD_GESTURE_PHASE_BEGIN; last_state = FP_STATE_UPDATE; last_scale = 1.0; break; case FP_STATE_UPDATE: /* We have already received a PhaseBegan event but no PhaseEnded event. This can happen, e.g. Magnify(Began), Magnify(Change)... Rotate(Began), Rotate (Change),...., Magnify(End) Rotate(End) */ event->touchpad_pinch.phase = GDK_TOUCHPAD_GESTURE_PHASE_UPDATE; break; } break; case NSEventPhaseChanged: event->touchpad_pinch.phase = GDK_TOUCHPAD_GESTURE_PHASE_UPDATE; break; case NSEventPhaseEnded: event->touchpad_pinch.phase = GDK_TOUCHPAD_GESTURE_PHASE_END; switch (last_state) { case FP_STATE_IDLE: /* We are idle but have received a second PhaseEnded event. This can happen because we have Magnify and Rotate OSX event sequences. We just send a second end GDK_PHASE_END. */ break; case FP_STATE_UPDATE: last_state = FP_STATE_IDLE; break; } break; case NSEventPhaseCancelled: event->touchpad_pinch.phase = GDK_TOUCHPAD_GESTURE_PHASE_CANCEL; last_state = FP_STATE_IDLE; break; case NSEventPhaseMayBegin: case NSEventPhaseStationary: event->touchpad_pinch.phase = GDK_TOUCHPAD_GESTURE_PHASE_CANCEL; break; default: g_assert_not_reached (); break; } switch ([nsevent type]) { case NSEventTypeMagnify: last_scale *= [nsevent magnification] + 1.0; event->touchpad_pinch.angle_delta = 0.0; break; case NSEventTypeRotate: event->touchpad_pinch.angle_delta = - [nsevent rotation] * G_PI / 180.0; break; default: g_assert_not_reached (); } event->touchpad_pinch.scale = last_scale; } #endif /* OSX Version >= 10.8 */ static void fill_button_event (GdkWindow *window, GdkEvent *event, NSEvent *nsevent, gint x, gint y, gint x_root, gint y_root) { GdkEventType type; gint state; GdkQuartzDeviceManagerCore *device_manager; state = get_keyboard_modifiers_from_ns_event (nsevent) | _gdk_quartz_events_get_current_mouse_modifiers (); switch ([nsevent type]) { case NSLeftMouseDown: case NSRightMouseDown: case NSOtherMouseDown: type = GDK_BUTTON_PRESS; state &= ~get_mouse_button_modifiers_from_ns_event (nsevent); break; case NSLeftMouseUp: case NSRightMouseUp: case NSOtherMouseUp: type = GDK_BUTTON_RELEASE; state |= get_mouse_button_modifiers_from_ns_event (nsevent); break; default: g_assert_not_reached (); } event->any.type = type; event->button.window = window; event->button.time = get_time_from_ns_event (nsevent); event->button.x = x; event->button.y = y; event->button.x_root = x_root; event->button.y_root = y_root; /* FIXME event->axes */ event->button.state = state; event->button.button = get_mouse_button_from_ns_event (nsevent); device_manager = GDK_QUARTZ_DEVICE_MANAGER_CORE (_gdk_display->device_manager); event->button.device = device_manager->core_pointer; gdk_event_set_seat (event, gdk_device_get_seat (device_manager->core_pointer)); } static void fill_motion_event (GdkWindow *window, GdkEvent *event, NSEvent *nsevent, gint x, gint y, gint x_root, gint y_root) { GdkQuartzDeviceManagerCore *device_manager; event->any.type = GDK_MOTION_NOTIFY; event->motion.window = window; event->motion.time = get_time_from_ns_event (nsevent); event->motion.x = x; event->motion.y = y; event->motion.x_root = x_root; event->motion.y_root = y_root; /* FIXME event->axes */ event->motion.state = get_keyboard_modifiers_from_ns_event (nsevent) | _gdk_quartz_events_get_current_mouse_modifiers (); event->motion.is_hint = FALSE; device_manager = GDK_QUARTZ_DEVICE_MANAGER_CORE (_gdk_display->device_manager); event->motion.device = device_manager->core_pointer; gdk_event_set_seat (event, gdk_device_get_seat (device_manager->core_pointer)); } static void fill_scroll_event (GdkWindow *window, GdkEvent *event, NSEvent *nsevent, gint x, gint y, gint x_root, gint y_root, gdouble delta_x, gdouble delta_y, GdkScrollDirection direction) { GdkQuartzDeviceManagerCore *device_manager; NSPoint point; point = [nsevent locationInWindow]; device_manager = GDK_QUARTZ_DEVICE_MANAGER_CORE (_gdk_display->device_manager); event->any.type = GDK_SCROLL; event->scroll.window = window; event->scroll.time = get_time_from_ns_event (nsevent); event->scroll.x = x; event->scroll.y = y; event->scroll.x_root = x_root; event->scroll.y_root = y_root; event->scroll.state = get_keyboard_modifiers_from_ns_event (nsevent); event->scroll.direction = direction; event->scroll.device = device_manager->core_pointer; event->scroll.delta_x = delta_x; event->scroll.delta_y = delta_y; gdk_event_set_seat (event, gdk_device_get_seat (device_manager->core_pointer)); } static void fill_key_event (GdkWindow *window, GdkEvent *event, NSEvent *nsevent, GdkEventType type) { GdkEventPrivate *priv; GdkQuartzDeviceManagerCore *device_manager; gchar buf[7]; gunichar c = 0; priv = (GdkEventPrivate *) event; priv->windowing_data = [nsevent retain]; event->any.type = type; event->key.window = window; event->key.time = get_time_from_ns_event (nsevent); event->key.state = get_keyboard_modifiers_from_ns_event (nsevent); event->key.hardware_keycode = [nsevent keyCode]; gdk_event_set_scancode (event, [nsevent keyCode]); event->key.group = ([nsevent modifierFlags] & NSAlternateKeyMask) ? 1 : 0; event->key.keyval = GDK_KEY_VoidSymbol; device_manager = GDK_QUARTZ_DEVICE_MANAGER_CORE (_gdk_display->device_manager); gdk_event_set_device (event, device_manager->core_keyboard); gdk_event_set_seat (event, gdk_device_get_seat (device_manager->core_keyboard)); gdk_keymap_translate_keyboard_state (gdk_keymap_get_for_display (_gdk_display), event->key.hardware_keycode, event->key.state, event->key.group, &event->key.keyval, NULL, NULL, NULL); event->key.is_modifier = _gdk_quartz_keys_is_modifier (event->key.hardware_keycode); /* If the key press is a modifier, the state should include the mask * for that modifier but only for releases, not presses. This * matches the X11 backend behavior. */ if (event->key.is_modifier) { int mask = 0; switch (event->key.keyval) { case GDK_KEY_Meta_R: case GDK_KEY_Meta_L: mask = GDK_MOD2_MASK; break; case GDK_KEY_Shift_R: case GDK_KEY_Shift_L: mask = GDK_SHIFT_MASK; break; case GDK_KEY_Caps_Lock: mask = GDK_LOCK_MASK; break; case GDK_KEY_Alt_R: case GDK_KEY_Alt_L: mask = GDK_MOD1_MASK; break; case GDK_KEY_Control_R: case GDK_KEY_Control_L: mask = GDK_CONTROL_MASK; break; default: mask = 0; } if (type == GDK_KEY_PRESS) event->key.state &= ~mask; else if (type == GDK_KEY_RELEASE) event->key.state |= mask; } event->key.state |= _gdk_quartz_events_get_current_mouse_modifiers (); /* The X11 backend adds the first virtual modifier MOD2..MOD5 are * mapped to. Since we only have one virtual modifier in the quartz * backend, calling the standard function will do. */ gdk_keymap_add_virtual_modifiers (gdk_keymap_get_for_display (_gdk_display), &event->key.state); event->key.string = NULL; /* Fill in ->string since apps depend on it, taken from the x11 backend. */ if (event->key.keyval != GDK_KEY_VoidSymbol) c = gdk_keyval_to_unicode (event->key.keyval); if (c) { gsize bytes_written; gint len; len = g_unichar_to_utf8 (c, buf); buf[len] = '\0'; event->key.string = g_locale_from_utf8 (buf, len, NULL, &bytes_written, NULL); if (event->key.string) event->key.length = bytes_written; } else if (event->key.keyval == GDK_KEY_Escape) { event->key.length = 1; event->key.string = g_strdup ("\033"); } else if (event->key.keyval == GDK_KEY_Return || event->key.keyval == GDK_KEY_KP_Enter) { event->key.length = 1; event->key.string = g_strdup ("\r"); } if (!event->key.string) { event->key.length = 0; event->key.string = g_strdup (""); } GDK_NOTE(EVENTS, g_message ("key %s:\t\twindow: %p key: %12s %d", type == GDK_KEY_PRESS ? "press" : "release", event->key.window, event->key.keyval ? gdk_keyval_name (event->key.keyval) : "(none)", event->key.keyval)); } static gboolean synthesize_crossing_event (GdkWindow *window, GdkEvent *event, NSEvent *nsevent, gint x, gint y, gint x_root, gint y_root) { switch ([nsevent type]) { case NSMouseEntered: /* Enter events are considered always to be from another toplevel * window, this shouldn't negatively affect any app or gtk code, * and is the only way to make GtkMenu work. EEK EEK EEK. */ if (!(window->event_mask & GDK_ENTER_NOTIFY_MASK)) return FALSE; fill_crossing_event (window, event, nsevent, x, y, x_root, y_root, GDK_ENTER_NOTIFY, GDK_CROSSING_NORMAL, GDK_NOTIFY_NONLINEAR); return TRUE; case NSMouseExited: /* See above */ if (!(window->event_mask & GDK_LEAVE_NOTIFY_MASK)) return FALSE; fill_crossing_event (window, event, nsevent, x, y, x_root, y_root, GDK_LEAVE_NOTIFY, GDK_CROSSING_NORMAL, GDK_NOTIFY_NONLINEAR); return TRUE; default: break; } return FALSE; } void _gdk_quartz_synthesize_null_key_event (GdkWindow *window) { GdkEvent *event; GdkQuartzDeviceManagerCore *device_manager; event = gdk_event_new (GDK_KEY_PRESS); event->any.type = GDK_KEY_PRESS; event->key.window = window; event->key.state = 0; event->key.hardware_keycode = 0; event->key.group = 0; event->key.keyval = GDK_KEY_VoidSymbol; device_manager = GDK_QUARTZ_DEVICE_MANAGER_CORE (_gdk_display->device_manager); gdk_event_set_device (event, device_manager->core_keyboard); gdk_event_set_seat (event, gdk_device_get_seat (device_manager->core_keyboard)); append_event(event, FALSE); } GdkModifierType _gdk_quartz_events_get_current_keyboard_modifiers (void) { if (gdk_quartz_osx_version () >= GDK_OSX_SNOW_LEOPARD) { return get_keyboard_modifiers_from_ns_flags ([NSClassFromString(@"NSEvent") modifierFlags]); } else { guint carbon_modifiers = GetCurrentKeyModifiers (); GdkModifierType modifiers = 0; if (carbon_modifiers & alphaLock) modifiers |= GDK_LOCK_MASK; if (carbon_modifiers & shiftKey) modifiers |= GDK_SHIFT_MASK; if (carbon_modifiers & controlKey) modifiers |= GDK_CONTROL_MASK; if (carbon_modifiers & optionKey) modifiers |= GDK_MOD1_MASK; if (carbon_modifiers & cmdKey) modifiers |= GDK_MOD2_MASK; return modifiers; } } GdkModifierType _gdk_quartz_events_get_current_mouse_modifiers (void) { if (gdk_quartz_osx_version () >= GDK_OSX_SNOW_LEOPARD) { return get_mouse_button_modifiers_from_ns_buttons ([NSClassFromString(@"NSEvent") pressedMouseButtons]); } else { return get_mouse_button_modifiers_from_ns_buttons (GetCurrentButtonState ()); } } /* Detect window resizing */ static gboolean test_resize (NSEvent *event, GdkWindow *toplevel, gint x, gint y) { GdkWindowImplQuartz *toplevel_impl; gboolean lion; /* Resizing from the resize indicator only begins if an NSLeftMouseButton * event is received in the resizing area. */ toplevel_impl = (GdkWindowImplQuartz *)toplevel->impl; if ([toplevel_impl->toplevel showsResizeIndicator]) if ([event type] == NSLeftMouseDown && [toplevel_impl->toplevel showsResizeIndicator]) { NSRect frame; /* If the resize indicator is visible and the event * is in the lower right 15x15 corner, we leave these * events to Cocoa as to be handled as resize events. * Applications may have widgets in this area. These * will most likely be larger than 15x15 and for * scroll bars there are also other means to move * the scroll bar. Since the resize indicator is * the only way of resizing windows on Mac OS, it * is too important to not make functional. */ frame = [toplevel_impl->view bounds]; if (x > frame.size.width - GRIP_WIDTH && x < frame.size.width && y > frame.size.height - GRIP_HEIGHT && y < frame.size.height) return TRUE; } /* If we're on Lion and within 5 pixels of an edge, * then assume that the user wants to resize, and * return NULL to let Quartz get on with it. We check * the selector isRestorable to see if we're on 10.7. * This extra check is in case the user starts * dragging before GDK recognizes the grab. * * We perform this check for a button press of all buttons, because we * do receive, for instance, a right mouse down event for a GDK window * for x-coordinate range [-3, 0], but we do not want to forward this * into GDK. Forwarding such events into GDK will confuse the pointer * window finding code, because there are no GdkWindows present in * the range [-3, 0]. */ lion = gdk_quartz_osx_version () >= GDK_OSX_LION; if (lion && ([event type] == NSLeftMouseDown || [event type] == NSRightMouseDown || [event type] == NSOtherMouseDown)) { if (x < GDK_LION_RESIZE || x > toplevel->width - GDK_LION_RESIZE || y > toplevel->height - GDK_LION_RESIZE) return TRUE; } return FALSE; } static gboolean gdk_event_translate (GdkEvent *event, NSEvent *nsevent) { NSEventType event_type; NSWindow *nswindow; GdkWindow *window; int x, y; int x_root, y_root; gboolean return_val; /* There is no support for real desktop wide grabs, so we break * grabs when the application loses focus (gets deactivated). */ event_type = [nsevent type]; if (event_type == NSAppKitDefined) { if ([nsevent subtype] == NSApplicationDeactivatedEventType) _gdk_quartz_events_break_all_grabs (get_time_from_ns_event (nsevent)); /* This could potentially be used to break grabs when clicking * on the title. The subtype 20 is undocumented so it's probably * not a good idea: else if (subtype == 20) break_all_grabs (); */ /* Leave all AppKit events to AppKit. */ return FALSE; } if (_gdk_default_filters) { /* Apply global filters */ GdkFilterReturn result; result = gdk_event_apply_filters (nsevent, event, &_gdk_default_filters); if (result != GDK_FILTER_CONTINUE) { return_val = (result == GDK_FILTER_TRANSLATE) ? TRUE : FALSE; goto done; } } nswindow = [nsevent window]; /* Ignore events for windows not created by GDK. */ if (nswindow && ![[nswindow contentView] isKindOfClass:[GdkQuartzView class]]) return FALSE; /* Ignore events for ones with no windows */ if (!nswindow) { GdkWindow *toplevel = NULL; if (event_type == NSMouseMoved) { /* Motion events received after clicking the menu bar do not have the * window field set. Instead of giving up on the event immediately, * we first check whether this event is within our window bounds. */ NSPoint screen_point = [NSEvent mouseLocation]; gint x_tmp, y_tmp; toplevel = find_toplevel_under_pointer (_gdk_display, screen_point, &x_tmp, &y_tmp); } if (!toplevel) return FALSE; } /* Ignore events and break grabs while the window is being * dragged. This is a workaround for the window getting events for * the window title. */ if ([(GdkQuartzNSWindow *)nswindow isInMove]) { _gdk_quartz_events_break_all_grabs (get_time_from_ns_event (nsevent)); return FALSE; } /* Also when in a manual resize or move , we ignore events so that * these are pushed to GdkQuartzNSWindow's sendEvent handler. */ if ([(GdkQuartzNSWindow *)nswindow isInManualResizeOrMove]) return FALSE; /* Find the right GDK window to send the event to, taking grabs and * event masks into consideration. */ window = find_window_for_ns_event (nsevent, &x, &y, &x_root, &y_root); if (!window) return FALSE; /* Quartz handles resizing on its own, so we want to stay out of the way. */ if (test_resize (nsevent, window, x, y)) return FALSE; /* Apply any window filters. */ if (GDK_IS_WINDOW (window)) { GdkFilterReturn result; if (window->filters) { g_object_ref (window); result = gdk_event_apply_filters (nsevent, event, &window->filters); g_object_unref (window); if (result != GDK_FILTER_CONTINUE) { return_val = (result == GDK_FILTER_TRANSLATE) ? TRUE : FALSE; goto done; } } } /* If the app is not active leave the event to AppKit so the window gets * focused correctly and don't do click-through (so we behave like most * native apps). If the app is active, we focus the window and then handle * the event, also to match native apps. */ if ((event_type == NSRightMouseDown || event_type == NSOtherMouseDown || event_type == NSLeftMouseDown)) { GdkWindowImplQuartz *impl = GDK_WINDOW_IMPL_QUARTZ (window->impl); if (![NSApp isActive]) { [NSApp activateIgnoringOtherApps:YES]; return FALSE; } else if (![impl->toplevel isKeyWindow]) { GdkDeviceGrabInfo *grab; grab = _gdk_display_get_last_device_grab (_gdk_display, GDK_QUARTZ_DEVICE_MANAGER_CORE (_gdk_display->device_manager)->core_pointer); if (!grab) [impl->toplevel makeKeyWindow]; } } return_val = TRUE; switch (event_type) { case NSLeftMouseDown: case NSRightMouseDown: case NSOtherMouseDown: case NSLeftMouseUp: case NSRightMouseUp: case NSOtherMouseUp: fill_button_event (window, event, nsevent, x, y, x_root, y_root); break; case NSLeftMouseDragged: case NSRightMouseDragged: case NSOtherMouseDragged: case NSMouseMoved: fill_motion_event (window, event, nsevent, x, y, x_root, y_root); break; case NSScrollWheel: { GdkScrollDirection direction; float dx; float dy; #ifdef AVAILABLE_MAC_OS_X_VERSION_10_7_AND_LATER if (gdk_quartz_osx_version() >= GDK_OSX_LION && [nsevent hasPreciseScrollingDeltas]) { dx = [nsevent scrollingDeltaX]; dy = [nsevent scrollingDeltaY]; direction = GDK_SCROLL_SMOOTH; fill_scroll_event (window, event, nsevent, x, y, x_root, y_root, -dx, -dy, direction); /* Fall through for scroll buttons emulation */ } #endif dx = [nsevent deltaX]; dy = [nsevent deltaY]; if (dy != 0.0) { if (dy < 0.0) direction = GDK_SCROLL_DOWN; else direction = GDK_SCROLL_UP; dy = fabs (dy); dx = 0.0; } else if (dx != 0.0) { if (dx < 0.0) direction = GDK_SCROLL_RIGHT; else direction = GDK_SCROLL_LEFT; dx = fabs (dx); dy = 0.0; } if (dx != 0.0 || dy != 0.0) { #ifdef AVAILABLE_MAC_OS_X_VERSION_10_7_AND_LATER if (gdk_quartz_osx_version() >= GDK_OSX_LION && [nsevent hasPreciseScrollingDeltas]) { GdkEvent *emulated_event; emulated_event = gdk_event_new (GDK_SCROLL); gdk_event_set_pointer_emulated (emulated_event, TRUE); fill_scroll_event (window, emulated_event, nsevent, x, y, x_root, y_root, dx, dy, direction); append_event (emulated_event, TRUE); } else #endif fill_scroll_event (window, event, nsevent, x, y, x_root, y_root, dx, dy, direction); } } break; #ifdef AVAILABLE_MAC_OS_X_VERSION_10_8_AND_LATER case NSEventTypeMagnify: case NSEventTypeRotate: /* Event handling requires [NSEvent phase] which was introduced in 10.7 */ /* However - Tests on 10.7 showed that phase property does not work */ if (gdk_quartz_osx_version () >= GDK_OSX_MOUNTAIN_LION) fill_pinch_event (window, event, nsevent, x, y, x_root, y_root); else return_val = FALSE; break; #endif case NSMouseExited: if (WINDOW_IS_TOPLEVEL (window)) [[NSCursor arrowCursor] set]; /* fall through */ case NSMouseEntered: return_val = synthesize_crossing_event (window, event, nsevent, x, y, x_root, y_root); break; case NSKeyDown: case NSKeyUp: case NSFlagsChanged: { GdkEventType type; type = _gdk_quartz_keys_event_type (nsevent); if (type == GDK_NOTHING) return_val = FALSE; else fill_key_event (window, event, nsevent, type); } break; default: /* Ignore everything elsee. */ return_val = FALSE; break; } done: if (return_val) { if (event->any.window) g_object_ref (event->any.window); if (((event->any.type == GDK_ENTER_NOTIFY) || (event->any.type == GDK_LEAVE_NOTIFY)) && (event->crossing.subwindow != NULL)) g_object_ref (event->crossing.subwindow); } else { /* Mark this event as having no resources to be freed */ event->any.window = NULL; event->any.type = GDK_NOTHING; } return return_val; } void _gdk_quartz_display_queue_events (GdkDisplay *display) { NSEvent *nsevent; nsevent = _gdk_quartz_event_loop_get_pending (); if (nsevent) { GdkEvent *event; GList *node; event = gdk_event_new (GDK_NOTHING); event->any.window = NULL; event->any.send_event = FALSE; ((GdkEventPrivate *)event)->flags |= GDK_EVENT_PENDING; node = _gdk_event_queue_append (display, event); if (gdk_event_translate (event, nsevent)) { ((GdkEventPrivate *)event)->flags &= ~GDK_EVENT_PENDING; _gdk_windowing_got_event (display, node, event, 0); } else { _gdk_event_queue_remove_link (display, node); g_list_free_1 (node); gdk_event_free (event); gdk_threads_leave (); [NSApp sendEvent:nsevent]; gdk_threads_enter (); } _gdk_quartz_event_loop_release_event (nsevent); } } void _gdk_quartz_screen_broadcast_client_message (GdkScreen *screen, GdkEvent *event) { /* Not supported. */ } gboolean _gdk_quartz_screen_get_setting (GdkScreen *screen, const gchar *name, GValue *value) { if (strcmp (name, "gtk-double-click-time") == 0) { NSUserDefaults *defaults; float t; GDK_QUARTZ_ALLOC_POOL; defaults = [NSUserDefaults standardUserDefaults]; t = [defaults floatForKey:@"com.apple.mouse.doubleClickThreshold"]; if (t == 0.0) { /* No user setting, use the default in OS X. */ t = 0.5; } GDK_QUARTZ_RELEASE_POOL; g_value_set_int (value, t * 1000); return TRUE; } else if (strcmp (name, "gtk-font-name") == 0) { NSString *name; char *str; gint size; GDK_QUARTZ_ALLOC_POOL; name = [[NSFont systemFontOfSize:0] familyName]; size = (gint)[[NSFont userFontOfSize:0] pointSize]; /* Let's try to use the "views" font size (12pt) by default. This is * used for lists/text/other "content" which is the largest parts of * apps, using the "regular control" size (13pt) looks a bit out of * place. We might have to tweak this. */ /* The size has to be hardcoded as there doesn't seem to be a way to * get the views font size programmatically. */ str = g_strdup_printf ("%s %d", [name UTF8String], size); g_value_set_string (value, str); g_free (str); GDK_QUARTZ_RELEASE_POOL; return TRUE; } else if (strcmp (name, "gtk-primary-button-warps-slider") == 0) { GDK_QUARTZ_ALLOC_POOL; BOOL setting = [[NSUserDefaults standardUserDefaults] boolForKey:@"AppleScrollerPagingBehavior"]; /* If the Apple property is YES, it means "warp" */ g_value_set_boolean (value, setting == YES); GDK_QUARTZ_RELEASE_POOL; return TRUE; } else if (strcmp (name, "gtk-shell-shows-desktop") == 0) { GDK_QUARTZ_ALLOC_POOL; g_value_set_boolean (value, TRUE); GDK_QUARTZ_RELEASE_POOL; return TRUE; } /* FIXME: Add more settings */ return FALSE; } void _gdk_quartz_display_event_data_copy (GdkDisplay *display, const GdkEvent *src, GdkEvent *dst) { GdkEventPrivate *priv_src = (GdkEventPrivate *) src; GdkEventPrivate *priv_dst = (GdkEventPrivate *) dst; if (priv_src->windowing_data) { priv_dst->windowing_data = priv_src->windowing_data; [(NSEvent *)priv_dst->windowing_data retain]; } } void _gdk_quartz_display_event_data_free (GdkDisplay *display, GdkEvent *event) { GdkEventPrivate *priv = (GdkEventPrivate *) event; if (priv->windowing_data) { [(NSEvent *)priv->windowing_data release]; priv->windowing_data = NULL; } }