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gtk/gdk/quartz/gdkevents-quartz.c
Kristian Rietveld 66207cf13e Improve enter/motion notify semantics 
On X11 we receive enter notify and motion notify events for a window
regardless of its focus state.  On Mac OS X this is not the case.  This
commit improves the semantics to overcome this difference.  It improves
on my earlier patch that sent a motion notify event when a window became
main.

Instead of sending a motion notify when a window becomes main, we now
send one when a window becomes key, which comes closest to a window
getting focus in X11.  This motion notify is needed because Mac OS X does
not send motion events when an application is inactive (none of its
windows have focus), these events are sent in X11.  This dummy motion
notify event (with current coordinates of the mouse cursor) allows an
application to get its prelight and other state right when it gets focus
and thus user attention.

Another change is to send an enter notify event when updating the
tracking rectangle of a GdkQuartView and the mouse cursor is currently in
this rectangle.  This rectangle is at least updated on window creation.
This enter notify event is important for the case where a new window
appears right below the mouse cursor.  The window has to receive an enter
notify event for the subsequent events to be processed correctly.  Mac
OS X does not send one in this case, so we generate it ourselves.

Both of these synthesized events have to go through
_gdk_windowing_got_event() for updating statekeeping, etc.
append_event() has a boolean flag now to make this convenient.
2010-01-30 20:36:28 +01:00

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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, 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
/* This is the window corresponding to the key window */
static GdkWindow *current_keyboard_window;
/* This is the event mask and button state from the last event */
static GdkEventMask current_event_mask;
static int current_button_state;
static void append_event (GdkEvent *event,
gboolean windowing);
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_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;
}
static void
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_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_event (NSEvent *nsevent)
{
GdkModifierType modifiers = 0;
int nsflags;
nsflags = [nsevent modifierFlags];
if (nsflags & NSAlphaShiftKeyMask)
modifiers |= GDK_LOCK_MASK;
if (nsflags & NSShiftKeyMask)
modifiers |= GDK_SHIFT_MASK;
if (nsflags & NSControlKeyMask)
modifiers |= GDK_CONTROL_MASK;
if (nsflags & NSCommandKeyMask)
modifiers |= GDK_MOD1_MASK;
return modifiers;
}
/* 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 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 point;
NSPoint screen_point;
NSWindow *nswindow;
GdkQuartzView *view;
GdkWindowObject *private;
GdkEvent *event;
gint x, y, x_root, y_root;
GdkDisplay *display;
event = gdk_event_new (GDK_MOTION_NOTIFY);
event->any.window = NULL;
event->any.send_event = TRUE;
private = (GdkWindowObject *)window;
nswindow = ((GdkWindowImplQuartz *)private->impl)->toplevel;
view = (GdkQuartzView *)[nswindow contentView];
display = gdk_drawable_get_display (window);
screen_point = [NSEvent mouseLocation];
_gdk_quartz_window_nspoint_to_gdk_xy (screen_point, &x_root, &y_root);
point = [nswindow convertScreenToBase:screen_point];
x = point.x;
y = private->height - point.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 = 0;
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 point;
NSPoint screen_point;
NSWindow *nswindow;
GdkWindowObject *private;
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;
private = (GdkWindowObject *)window;
nswindow = ((GdkWindowImplQuartz *)private->impl)->toplevel;
screen_point = [NSEvent mouseLocation];
_gdk_quartz_window_nspoint_to_gdk_xy (screen_point, &x_root, &y_root);
point = [nswindow convertScreenToBase:screen_point];
x = point.x;
y = private->height - point.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 = 0;
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)
{
GdkWindowObject *private;
NSWindow *nswindow;
NSPoint point;
private = (GdkWindowObject *)toplevel;
nswindow = ((GdkWindowImplQuartz *)private->impl)->toplevel;
point = [nswindow convertScreenToBase:screen_point];
*x = point.x;
*y = private->height - point.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;
GdkWindowObject *private;
NSPoint point;
NSPoint screen_point;
NSEventType event_type;
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;
_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 (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;
GdkWindowObject *grab_private;
NSWindow *grab_nswindow;
grab_toplevel = gdk_window_get_toplevel (grab->window);
grab_private = (GdkWindowObject *)grab_toplevel;
grab_nswindow = ((GdkWindowImplQuartz *)grab_private->impl)->toplevel;
point = [grab_nswindow convertScreenToBase:screen_point];
/* Note: x_root and y_root are already right. */
*x = point.x;
*y = grab_private->height - point.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)
{
GdkWindowObject *toplevel_private;
GdkWindowImplQuartz *toplevel_impl;
toplevel = toplevel_under_pointer;
toplevel_private = (GdkWindowObject *)toplevel;
toplevel_impl = (GdkWindowImplQuartz *)toplevel_private->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_tmp > frame.size.width - GRIP_WIDTH
&& x_tmp < frame.size.width
&& y_tmp > frame.size.height - GRIP_HEIGHT
&& y_tmp < frame.size.height)
{
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_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);
/* 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;
gint button;
state = get_keyboard_modifiers_from_ns_event (nsevent);
switch ([nsevent type])
{
case NSLeftMouseDown:
case NSRightMouseDown:
case NSOtherMouseDown:
type = GDK_BUTTON_PRESS;
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 ();
}
button = get_mouse_button_from_ns_event (nsevent);
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 = button;
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)
{
GdkModifierType state;
state = get_keyboard_modifiers_from_ns_event (nsevent);
switch ([nsevent type])
{
case NSLeftMouseDragged:
case NSRightMouseDragged:
case NSOtherMouseDragged:
state |= get_mouse_button_modifiers_from_ns_event (nsevent);
break;
case NSMouseMoved:
break;
}
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 = state;
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,
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;
}
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_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_MOD5_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 |= current_button_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;
}
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)
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;
}
/* Keep track of button state, since we don't get that information
* for key events.
*/
switch (event_type)
{
case NSLeftMouseDown:
case NSRightMouseDown:
case NSOtherMouseDown:
current_button_state |= get_mouse_button_modifiers_from_ns_event (nsevent);
break;
case NSLeftMouseUp:
case NSRightMouseUp:
case NSOtherMouseUp:
current_button_state &= ~get_mouse_button_modifiers_from_ns_event (nsevent);
break;
default:
break;
}
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 no window or ones not created by GDK. */
if (!nswindow || ![[nswindow contentView] isKindOfClass:[GdkQuartzView class]])
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])
{
break_all_grabs (get_time_from_ns_event (nsevent));
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;
/* 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:
{
float dx = [nsevent deltaX];
float dy = [nsevent deltaY];
GdkScrollDirection direction;
if (dy != 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, direction);
}
if (dx != 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, 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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