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@mhutch
Created May 7, 2012
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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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#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 "gdkscreen.h"
#include "gdkkeysyms.h"
#include "gdkprivate-quartz.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;
/* This is the event mask from the last event */
static GdkEventMask current_event_mask;
static void append_event (GdkEvent *event,
gboolean windowing);
static GdkWindow *find_toplevel_under_pointer (GdkDisplay *display,
NSPoint screen_point,
gint *x,
gint *y);
/* Protocol to build cleanly for OSX < 10.7 */
@protocol PreciseDeltas
- (BOOL) hasPreciseScrollingDeltas;
- (CGFloat) scrollingDeltaX;
- (CGFloat) scrollingDeltaY;
@end
NSEvent *
gdk_quartz_event_get_nsevent (GdkEvent *event)
{
/* FIXME: If the event here is unallocated, we crash. */
return ((GdkEventPrivate *) event)->windowing_data;
}
void
_gdk_events_init (void)
{
_gdk_quartz_event_loop_init ();
current_keyboard_window = g_object_ref (_gdk_root);
}
gboolean
gdk_events_pending (void)
{
return (_gdk_event_queue_find_first (_gdk_display) ||
(_gdk_quartz_event_loop_check_pending ()));
}
GdkEvent*
gdk_event_get_graphics_expose (GdkWindow *window)
{
/* FIXME: Implement */
return NULL;
}
GdkGrabStatus
gdk_keyboard_grab (GdkWindow *window,
gint owner_events,
guint32 time)
{
GdkDisplay *display;
GdkWindow *toplevel;
g_return_val_if_fail (window != NULL, 0);
g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
display = gdk_drawable_get_display (window);
toplevel = gdk_window_get_effective_toplevel (window);
_gdk_display_set_has_keyboard_grab (display,
window,
toplevel,
owner_events,
0,
time);
return GDK_GRAB_SUCCESS;
}
void
gdk_display_keyboard_ungrab (GdkDisplay *display,
guint32 time)
{
_gdk_display_unset_has_keyboard_grab (display, FALSE);
}
void
gdk_display_pointer_ungrab (GdkDisplay *display,
guint32 time)
{
GdkPointerGrabInfo *grab;
grab = _gdk_display_get_last_pointer_grab (display);
if (grab)
grab->serial_end = 0;
_gdk_display_pointer_grab_update (display, 0);
}
GdkGrabStatus
_gdk_windowing_pointer_grab (GdkWindow *window,
GdkWindow *native,
gboolean owner_events,
GdkEventMask event_mask,
GdkWindow *confine_to,
GdkCursor *cursor,
guint32 time)
{
g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
g_return_val_if_fail (confine_to == NULL || GDK_IS_WINDOW (confine_to), 0);
_gdk_display_add_pointer_grab (_gdk_display,
window,
native,
owner_events,
event_mask,
0,
time,
FALSE);
return GDK_GRAB_SUCCESS;
}
void
_gdk_quartz_events_break_all_grabs (guint32 time)
{
GdkPointerGrabInfo *grab;
if (_gdk_display->keyboard_grab.window)
_gdk_display_unset_has_keyboard_grab (_gdk_display, FALSE);
grab = _gdk_display_get_last_pointer_grab (_gdk_display);
if (grab)
{
grab->serial_end = 0;
grab->implicit_ungrab = TRUE;
}
_gdk_display_pointer_grab_update (_gdk_display, 0);
}
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;
tmp_list = tmp_list->next;
result = filter->function (nsevent, event, filter->data);
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 (gdk_quartz_get_fix_modifiers ())
{
if (nsflags & NSAlternateKeyMask)
modifiers |= GDK_MOD1_MASK;
if (nsflags & NSCommandKeyMask)
modifiers |= GDK_MOD2_MASK;
}
else
{
if (nsflags & NSCommandKeyMask)
modifiers |= GDK_MOD1_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;
GdkWindowObject *private;
private = (GdkWindowObject *)window;
nswindow = ((GdkWindowImplQuartz *)private->impl)->toplevel;
point = [nswindow convertScreenToBase:screen_point];
*x = point.x;
*y = private->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;
GdkWindowObject *private;
NSPoint point;
view = (GdkQuartzView *)[[nsevent window] contentView];
toplevel = [view gdkWindow];
private = GDK_WINDOW_OBJECT (toplevel);
point = [nsevent locationInWindow];
*screen_point = [[nsevent window] convertBaseToScreen:point];
*x = point.x;
*y = private->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;
event = gdk_event_new (GDK_FOCUS_CHANGE);
event->focus_change.window = window;
event->focus_change.in = in;
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 GdkQuartzWindow
* 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 ();
append_event (event, TRUE);
}
void
_gdk_quartz_events_send_map_event (GdkWindow *window)
{
GdkWindowObject *private = (GdkWindowObject *)window;
GdkWindowImplQuartz *impl = GDK_WINDOW_IMPL_QUARTZ (private->impl);
if (!impl->toplevel)
return;
if (private->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;
toplevel = display->pointer_info.toplevel_under_pointer;
if (toplevel && WINDOW_IS_TOPLEVEL (toplevel))
get_window_point_from_screen_point (toplevel, screen_point, x, y);
return toplevel;
}
/* 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:
{
GdkDisplay *display;
GdkPointerGrabInfo *grab;
display = gdk_drawable_get_display (toplevel);
/* 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_pointer_grab (display);
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 = NULL;
if (grab->window == NULL)
{
g_warning ("grab->window == NULL");
}
else
{
grab_toplevel = gdk_window_get_effective_toplevel (grab->window);
if (grab_toplevel == NULL)
{
g_warning ("grab_toplevel == NULL");
}
else
{
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))
{
GdkWindowObject *toplevel_private;
GdkWindowImplQuartz *toplevel_impl;
guint n_subviews;
guint i;
toplevel = toplevel_under_pointer;
toplevel_private = (GdkWindowObject *)toplevel;
toplevel_impl = (GdkWindowImplQuartz *)toplevel_private->impl;
n_subviews = [[toplevel_impl->view subviews] count];
for (i = 0; i < n_subviews; ++i)
{
NSView* sv = [[toplevel_impl->view subviews] objectAtIndex:i];
NSRect r = [sv frame];
if (r.origin.x <= *x && r.origin.x + r.size.width >= *x &&
r.origin.y <= *y && r.origin.y + r.size.height >= *y)
{
g_signal_emit_by_name (toplevel, "native-child-event",
sv, nsevent);
/* event is within subview, forward back to Cocoa */
return NULL;
}
}
*x = x_tmp;
*y = y_tmp;
}
return toplevel;
}
}
break;
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:
if (_gdk_display->keyboard_grab.window && !_gdk_display->keyboard_grab.owner_events)
return gdk_window_get_effective_toplevel (_gdk_display->keyboard_grab.window);
return toplevel;
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 ();
/* 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,
gboolean has_deltas,
gdouble delta_x,
gdouble delta_y,
GdkScrollDirection direction)
{
GdkWindowObject *private;
NSPoint point;
private = GDK_WINDOW_OBJECT (window);
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.has_deltas = has_deltas;
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;
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_VoidSymbol;
gdk_keymap_translate_keyboard_state (NULL,
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_Meta_R:
case GDK_Meta_L:
mask = gdk_quartz_get_fix_modifiers () ? GDK_MOD2_MASK : GDK_MOD1_MASK;
break;
case GDK_Shift_R:
case GDK_Shift_L:
mask = GDK_SHIFT_MASK;
break;
case GDK_Caps_Lock:
mask = GDK_LOCK_MASK;
break;
case GDK_Alt_R:
case GDK_Alt_L:
mask = gdk_quartz_get_fix_modifiers () ? GDK_MOD1_MASK : GDK_MOD2_MASK;
break;
case GDK_Control_R:
case GDK_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 (NULL, &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_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_Escape)
{
event->key.length = 1;
event->key.string = g_strdup ("\033");
}
else if (event->key.keyval == GDK_Return ||
event->key.keyval == GDK_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)
{
GdkWindowObject *private;
private = GDK_WINDOW_OBJECT (window);
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 (!(private->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 (!(private->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;
}
GdkEventMask
_gdk_quartz_events_get_current_event_mask (void)
{
return current_event_mask;
}
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_quartz_get_fix_modifiers () ? GDK_MOD1_MASK : GDK_MOD2_MASK);
if (carbon_modifiers & cmdKey)
modifiers |= (gdk_quartz_get_fix_modifiers () ? GDK_MOD2_MASK : GDK_MOD1_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)
{
GdkWindowObject *toplevel_private;
GdkWindowImplQuartz *toplevel_impl;
gboolean lion;
/* Resizing from the resize indicator only begins if an NSLeftMouseButton
* event is received in the resizing area.
*/
toplevel_private = (GdkWindowObject *)toplevel;
toplevel_impl = (GdkWindowImplQuartz *)toplevel_private->impl;
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_private->width - GDK_LION_RESIZE ||
y > toplevel_private->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 ([(GdkQuartzWindow *)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))
{
GdkWindowObject *filter_private = (GdkWindowObject *) window;
GdkFilterReturn result;
if (filter_private->filters)
{
g_object_ref (window);
result = gdk_event_apply_filters (nsevent, event, filter_private->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))
{
GdkWindowObject *private = (GdkWindowObject *)window;
GdkWindowImplQuartz *impl = GDK_WINDOW_IMPL_QUARTZ (private->impl);
if (![NSApp isActive])
{
[NSApp activateIgnoringOtherApps:YES];
return FALSE;
}
else if (![impl->toplevel isKeyWindow])
{
GdkPointerGrabInfo *grab;
grab = _gdk_display_get_last_pointer_grab (_gdk_display);
if (!grab)
[impl->toplevel makeKeyWindow];
}
}
current_event_mask = get_event_mask_from_ns_event (nsevent);
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;
if (gdk_quartz_osx_version() >= GDK_OSX_LION &&
[(id <PreciseDeltas>) nsevent hasPreciseScrollingDeltas])
{
dx = [(id <PreciseDeltas>) nsevent scrollingDeltaX];
dy = [(id <PreciseDeltas>) nsevent scrollingDeltaY];
if (fabs (dy) > fabs (dx))
{
if (dy < 0.0)
direction = GDK_SCROLL_DOWN;
else
direction = GDK_SCROLL_UP;
}
else
{
if (dx < 0.0)
direction = GDK_SCROLL_RIGHT;
else
direction = GDK_SCROLL_LEFT;
}
fill_scroll_event (window, event, nsevent, x, y, x_root, y_root,
TRUE, -dx, -dy, direction);
}
else
{
dx = [nsevent deltaX];
dy = [nsevent deltaY];
if (dy != 0.0)
{
if (dy < 0.0)
direction = GDK_SCROLL_DOWN;
else
direction = GDK_SCROLL_UP;
fill_scroll_event (window, event, nsevent, x, y, x_root, y_root,
FALSE, 0.0, fabs (dy), direction);
}
else if (dx != 0.0)
{
if (dx < 0.0)
direction = GDK_SCROLL_RIGHT;
else
direction = GDK_SCROLL_LEFT;
fill_scroll_event (window, event, nsevent, x, y, x_root, y_root,
FALSE, fabs (dx), 0.0, 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_events_queue (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_flush (void)
{
/* Not supported. */
}
void
gdk_display_add_client_message_filter (GdkDisplay *display,
GdkAtom message_type,
GdkFilterFunc func,
gpointer data)
{
/* Not supported. */
}
void
gdk_add_client_message_filter (GdkAtom message_type,
GdkFilterFunc func,
gpointer data)
{
/* Not supported. */
}
void
gdk_display_sync (GdkDisplay *display)
{
/* Not supported. */
}
void
gdk_display_flush (GdkDisplay *display)
{
/* Not supported. */
}
gboolean
gdk_event_send_client_message_for_display (GdkDisplay *display,
GdkEvent *event,
GdkNativeWindow winid)
{
/* Not supported. */
return FALSE;
}
void
gdk_screen_broadcast_client_message (GdkScreen *screen,
GdkEvent *event)
{
/* Not supported. */
}
gboolean
gdk_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_windowing_event_data_copy (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_windowing_event_data_free (GdkEvent *event)
{
GdkEventPrivate *priv = (GdkEventPrivate *) event;
if (priv->windowing_data)
{
[(NSEvent *)priv->windowing_data release];
priv->windowing_data = NULL;
}
}
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