gtk/gdk/broadway/gdkeventsource.c
Owen W. Taylor df3e19b449 Broadway/Quartz/Win32: make event source prepare()/check() note paused status
When events are paused, we should not return TRUE from prepare() or check().
GTK+ handles this for events that are already in the GTK+ queue, but
we also need suppress checks for events that are in the system queue - if we
return TRUE indicating that there are events in the system queue, then we'll
call dispatch(), and do nothing. The event source will spin, and will never
run the other phases of the paint clock.

(Broadway doesn't have a window system queue separate from the GDK event queue,
but we write the function the same way for consistency.)

https://bugzilla.gnome.org/show_bug.cgi?id=694274
2013-02-21 09:59:58 -05:00

372 lines
12 KiB
C

/* GDK - The GIMP Drawing Kit
* Copyright (C) 2009 Carlos Garnacho <carlosg@gnome.org>
*
* 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 "gdkeventsource.h"
#include "gdkinternals.h"
#include <stdlib.h>
static gboolean gdk_event_source_prepare (GSource *source,
gint *timeout);
static gboolean gdk_event_source_check (GSource *source);
static gboolean gdk_event_source_dispatch (GSource *source,
GSourceFunc callback,
gpointer user_data);
static void gdk_event_source_finalize (GSource *source);
#define HAS_FOCUS(toplevel) \
((toplevel)->has_focus || (toplevel)->has_pointer_focus)
struct _GdkEventSource
{
GSource source;
GdkDisplay *display;
GPollFD event_poll_fd;
};
static GSourceFuncs event_funcs = {
gdk_event_source_prepare,
gdk_event_source_check,
gdk_event_source_dispatch,
gdk_event_source_finalize
};
static GList *event_sources = NULL;
static gboolean
gdk_event_source_prepare (GSource *source,
gint *timeout)
{
GdkDisplay *display = ((GdkEventSource*) source)->display;
gboolean retval;
gdk_threads_enter ();
*timeout = -1;
if (display->event_pause_count > 0)
retval = FALSE;
else
retval = (_gdk_event_queue_find_first (display) != NULL);
gdk_threads_leave ();
return retval;
}
static gboolean
gdk_event_source_check (GSource *source)
{
GdkEventSource *event_source = (GdkEventSource*) source;
gboolean retval;
gdk_threads_enter ();
if (event_source->display->event_pause_count > 0)
retval = FALSE;
else if (event_source->event_poll_fd.revents & G_IO_IN)
retval = (_gdk_event_queue_find_first (event_source->display) != NULL);
else
retval = FALSE;
gdk_threads_leave ();
return retval;
}
void
_gdk_broadway_events_got_input (BroadwayInputMsg *message)
{
GdkDisplay *display = gdk_display_get_default ();
GdkBroadwayDisplay *display_broadway = GDK_BROADWAY_DISPLAY (display);
GdkScreen *screen;
GdkWindow *window;
GdkEvent *event = NULL;
GList *node;
switch (message->base.type) {
case BROADWAY_EVENT_ENTER:
window = g_hash_table_lookup (display_broadway->id_ht, GINT_TO_POINTER (message->pointer.event_window_id));
if (window)
{
event = gdk_event_new (GDK_ENTER_NOTIFY);
event->crossing.window = g_object_ref (window);
event->crossing.time = message->base.time;
event->crossing.x = message->pointer.win_x;
event->crossing.y = message->pointer.win_y;
event->crossing.x_root = message->pointer.root_x;
event->crossing.y_root = message->pointer.root_y;
event->crossing.state = message->pointer.state;
event->crossing.mode = message->crossing.mode;
event->crossing.detail = GDK_NOTIFY_ANCESTOR;
gdk_event_set_device (event, display->core_pointer);
node = _gdk_event_queue_append (display, event);
_gdk_windowing_got_event (display, node, event, message->base.serial);
event = gdk_event_new (GDK_FOCUS_CHANGE);
event->focus_change.window = g_object_ref (window);
event->focus_change.in = TRUE;
gdk_event_set_device (event, display->core_pointer);
node = _gdk_event_queue_append (display, event);
_gdk_windowing_got_event (display, node, event, message->base.serial);
}
break;
case BROADWAY_EVENT_LEAVE:
window = g_hash_table_lookup (display_broadway->id_ht, GINT_TO_POINTER (message->pointer.event_window_id));
if (window)
{
event = gdk_event_new (GDK_LEAVE_NOTIFY);
event->crossing.window = g_object_ref (window);
event->crossing.time = message->base.time;
event->crossing.x = message->pointer.win_x;
event->crossing.y = message->pointer.win_y;
event->crossing.x_root = message->pointer.root_x;
event->crossing.y_root = message->pointer.root_y;
event->crossing.state = message->pointer.state;
event->crossing.mode = message->crossing.mode;
event->crossing.detail = GDK_NOTIFY_ANCESTOR;
gdk_event_set_device (event, display->core_pointer);
node = _gdk_event_queue_append (display, event);
_gdk_windowing_got_event (display, node, event, message->base.serial);
event = gdk_event_new (GDK_FOCUS_CHANGE);
event->focus_change.window = g_object_ref (window);
event->focus_change.in = FALSE;
gdk_event_set_device (event, display->core_pointer);
node = _gdk_event_queue_append (display, event);
_gdk_windowing_got_event (display, node, event, message->base.serial);
}
break;
case BROADWAY_EVENT_POINTER_MOVE:
if (_gdk_broadway_moveresize_handle_event (display, message))
break;
window = g_hash_table_lookup (display_broadway->id_ht, GINT_TO_POINTER (message->pointer.event_window_id));
if (window)
{
event = gdk_event_new (GDK_MOTION_NOTIFY);
event->motion.window = g_object_ref (window);
event->motion.time = message->base.time;
event->motion.x = message->pointer.win_x;
event->motion.y = message->pointer.win_y;
event->motion.x_root = message->pointer.root_x;
event->motion.y_root = message->pointer.root_y;
event->motion.state = message->pointer.state;
gdk_event_set_device (event, display->core_pointer);
node = _gdk_event_queue_append (display, event);
_gdk_windowing_got_event (display, node, event, message->base.serial);
}
break;
case BROADWAY_EVENT_BUTTON_PRESS:
case BROADWAY_EVENT_BUTTON_RELEASE:
if (message->base.type != 'b' &&
_gdk_broadway_moveresize_handle_event (display, message))
break;
window = g_hash_table_lookup (display_broadway->id_ht, GINT_TO_POINTER (message->pointer.event_window_id));
if (window)
{
event = gdk_event_new (message->base.type == 'b' ? GDK_BUTTON_PRESS : GDK_BUTTON_RELEASE);
event->button.window = g_object_ref (window);
event->button.time = message->base.time;
event->button.x = message->pointer.win_x;
event->button.y = message->pointer.win_y;
event->button.x_root = message->pointer.root_x;
event->button.y_root = message->pointer.root_y;
event->button.button = message->button.button;
event->button.state = message->pointer.state;
gdk_event_set_device (event, display->core_pointer);
node = _gdk_event_queue_append (display, event);
_gdk_windowing_got_event (display, node, event, message->base.serial);
}
break;
case BROADWAY_EVENT_SCROLL:
window = g_hash_table_lookup (display_broadway->id_ht, GINT_TO_POINTER (message->pointer.event_window_id));
if (window)
{
event = gdk_event_new (GDK_SCROLL);
event->scroll.window = g_object_ref (window);
event->scroll.time = message->base.time;
event->scroll.x = message->pointer.win_x;
event->scroll.y = message->pointer.win_y;
event->scroll.x_root = message->pointer.root_x;
event->scroll.y_root = message->pointer.root_y;
event->scroll.direction = message->scroll.dir == 0 ? GDK_SCROLL_UP : GDK_SCROLL_DOWN;
gdk_event_set_device (event, display->core_pointer);
node = _gdk_event_queue_append (display, event);
_gdk_windowing_got_event (display, node, event, message->base.serial);
}
break;
case BROADWAY_EVENT_KEY_PRESS:
case BROADWAY_EVENT_KEY_RELEASE:
window = g_hash_table_lookup (display_broadway->id_ht,
GINT_TO_POINTER (message->key.mouse_window_id));
if (window)
{
event = gdk_event_new (message->base.type == 'k' ? GDK_KEY_PRESS : GDK_KEY_RELEASE);
event->key.window = g_object_ref (window);
event->key.time = message->base.time;
event->key.keyval = message->key.key;
event->key.state = message->key.state;
event->key.hardware_keycode = message->key.key;
event->key.length = 0;
gdk_event_set_device (event, display->core_pointer);
node = _gdk_event_queue_append (display, event);
_gdk_windowing_got_event (display, node, event, message->base.serial);
}
break;
case BROADWAY_EVENT_GRAB_NOTIFY:
case BROADWAY_EVENT_UNGRAB_NOTIFY:
_gdk_display_device_grab_update (display, display->core_pointer, NULL, message->base.serial);
break;
case BROADWAY_EVENT_CONFIGURE_NOTIFY:
window = g_hash_table_lookup (display_broadway->id_ht, GINT_TO_POINTER (message->configure_notify.id));
if (window)
{
window->x = message->configure_notify.x;
window->y = message->configure_notify.y;
window->width = message->configure_notify.width;
window->height = message->configure_notify.height;
_gdk_window_update_size (window);
_gdk_broadway_window_resize_surface (window);
event = gdk_event_new (GDK_CONFIGURE);
event->configure.window = g_object_ref (window);
event->configure.x = message->configure_notify.x;
event->configure.y = message->configure_notify.y;
event->configure.width = message->configure_notify.width;
event->configure.height = message->configure_notify.height;
node = _gdk_event_queue_append (display, event);
_gdk_windowing_got_event (display, node, event, message->base.serial);
if (window->resize_count >= 1)
{
window->resize_count -= 1;
if (window->resize_count == 0)
_gdk_broadway_moveresize_configure_done (display, window);
}
}
break;
case BROADWAY_EVENT_DELETE_NOTIFY:
window = g_hash_table_lookup (display_broadway->id_ht, GINT_TO_POINTER (message->delete_notify.id));
if (window)
{
event = gdk_event_new (GDK_DELETE);
event->any.window = g_object_ref (window);
node = _gdk_event_queue_append (display, event);
_gdk_windowing_got_event (display, node, event, message->base.serial);
}
break;
case BROADWAY_EVENT_SCREEN_SIZE_CHANGED:
screen = gdk_display_get_default_screen (display);
window = gdk_screen_get_root_window (screen);
window->width = message->screen_resize_notify.width;
window->height = message->screen_resize_notify.height;
_gdk_window_update_size (window);
_gdk_broadway_screen_size_changed (screen, &message->screen_resize_notify);
break;
default:
g_printerr ("_gdk_broadway_events_got_input - Unknown input command %c\n", message->base.type);
break;
}
}
void
_gdk_broadway_display_queue_events (GdkDisplay *display)
{
}
static gboolean
gdk_event_source_dispatch (GSource *source,
GSourceFunc callback,
gpointer user_data)
{
GdkDisplay *display = ((GdkEventSource*) source)->display;
GdkEvent *event;
gdk_threads_enter ();
event = gdk_display_get_event (display);
if (event)
{
_gdk_event_emit (event);
gdk_event_free (event);
}
gdk_threads_leave ();
return TRUE;
}
static void
gdk_event_source_finalize (GSource *source)
{
GdkEventSource *event_source = (GdkEventSource *)source;
event_sources = g_list_remove (event_sources, event_source);
}
GSource *
_gdk_broadway_event_source_new (GdkDisplay *display)
{
GSource *source;
GdkEventSource *event_source;
char *name;
source = g_source_new (&event_funcs, sizeof (GdkEventSource));
name = g_strdup_printf ("GDK Broadway Event source (%s)",
gdk_display_get_name (display));
g_source_set_name (source, name);
g_free (name);
event_source = (GdkEventSource *) source;
event_source->display = display;
g_source_set_priority (source, GDK_PRIORITY_EVENTS);
g_source_set_can_recurse (source, TRUE);
g_source_attach (source, NULL);
event_sources = g_list_prepend (event_sources, source);
return source;
}