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gtk/gdk/quartz/gdkevents-quartz.c
Kristian Rietveld 7e778aa033 [quartz] Fix manual resizing of windows 
In the Quartz backend, there are two methods by which windows are
resized. The first method is fully handled by Quartz and does not appear
in the event stream the application resizes. The second method is when
we resize windows by ourselves. In OS X this happens when a GTK+ resize
grip is used. This resize grip is larger than the Quartz resize grip.
When the resize is started outside the "Quartz area", we have to handle
it by ourselves.

This patch fixes this manual window resizing by ignoring events while we
are in the process of resizing (such that the events actually arrive at
the sendEvent handler of GdkQuartzWindow where this resize is handled).
When the resize has finished we break all grabs such that GDK is not
stuck thinking the cursor is still in the resize window.
2012-04-10 21:54:03 +02:00

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/* 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 <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <sys/types.h>
#include <sys/sysctl.h>
#include <pthread.h>
#include <unistd.h>
#import <Cocoa/Cocoa.h>
#include <Carbon/Carbon.h>
#include <gdk/gdkdisplayprivate.h>
#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);
void
_gdk_quartz_events_init (void)
{
_gdk_quartz_event_loop_init ();
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];
return 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 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 GdkWindow *
get_toplevel_from_ns_event (NSEvent *nsevent,
NSPoint *screen_point,
gint *x,
gint *y)
{
GdkWindow *toplevel;
if ([nsevent window])
{
GdkQuartzView *view;
NSPoint point;
view = (GdkQuartzView *)[[nsevent window] contentView];
toplevel = [view gdkWindow];
point = [nsevent locationInWindow];
*screen_point = [[nsevent window] convertBaseToScreen:point];
*x = point.x;
*y = toplevel->height - point.y;
}
else
{
/* 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.
*/
*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);
return event;
}
static void
generate_motion_event (GdkWindow *window)
{
NSPoint screen_point;
GdkEvent *event;
gint x, y, x_root, y_root;
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 = GDK_CURRENT_TIME;
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;
event->motion.device = _gdk_display->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_enter_notify_event (GdkWindow *window)
{
NSPoint screen_point;
GdkEvent *event;
gint x, y, x_root, y_root;
event = gdk_event_new (GDK_ENTER_NOTIFY);
event->any.window = NULL;
event->any.send_event = FALSE;
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->crossing.window = window;
event->crossing.subwindow = NULL;
event->crossing.time = GDK_CURRENT_TIME;
event->crossing.x = x;
event->crossing.y = y;
event->crossing.x_root = x_root;
event->crossing.y_root = y_root;
event->crossing.mode = GDK_CROSSING_NORMAL;
event->crossing.detail = GDK_NOTIFY_ANCESTOR;
event->crossing.state = _gdk_quartz_events_get_current_keyboard_modifiers () |
_gdk_quartz_events_get_current_mouse_modifiers ();
gdk_event_set_device (event, _gdk_display->core_pointer);
append_event (event, TRUE);
}
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, display->core_pointer);
toplevel = info->toplevel_under_pointer;
if (toplevel && WINDOW_IS_TOPLEVEL (toplevel))
get_window_point_from_screen_point (toplevel, screen_point, x, y);
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,
display->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);
_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:
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)
{
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 ();
gdk_event_set_device (event, _gdk_display->core_pointer);
/* FIXME: Focus and button state? */
}
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;
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);
event->button.device = _gdk_display->core_pointer;
}
static void
fill_motion_event (GdkWindow *window,
GdkEvent *event,
NSEvent *nsevent,
gint x,
gint y,
gint x_root,
gint y_root)
{
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;
event->motion.device = _gdk_display->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)
{
NSPoint point;
point = [nsevent locationInWindow];
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 = _gdk_display->core_pointer;
event->scroll.delta_x = delta_x;
event->scroll.delta_y = delta_y;
}
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];
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_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 the root window as we
* can't know for sure from what window we enter.
*/
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_ANCESTOR);
return TRUE;
case NSMouseExited:
/* Exited always is to the root window as far as we are concerned,
* since there is no way to reliably get information about what new
* window is entered when exiting one.
*/
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_ANCESTOR);
return TRUE;
default:
break;
}
return 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 only begins if an NSLeftMouseButton event is received in
* the resizing area. Handle anything else.
*/
if ([event type] != NSLeftMouseDown)
return FALSE;
toplevel_impl = (GdkWindowImplQuartz *)toplevel->impl;
if ([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.
*/
lion = gdk_quartz_osx_version () >= GDK_OSX_LION;
if (lion && (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, we ignore events so that these are
* pushed to GdkQuartzWindow's sendEvent handler.
*/
if ([(GdkQuartzWindow *)nswindow isInManualResize])
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_display->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)
{
if ([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
fill_scroll_event (window, event, nsevent,
x, y, x_root, y_root,
dx, dy, direction);
}
}
break;
case NSMouseEntered:
case NSMouseExited:
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;
GDK_QUARTZ_ALLOC_POOL;
name = [[NSFont systemFontOfSize:0] familyName];
/* 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 12", [name UTF8String]);
g_value_set_string (value, str);
g_free (str);
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;
}
}
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