forked from AuroraMiddleware/gtk
f50a3af1b7
If a motion event handler (or other handler running from the flush-events phase of the frame clock) recursed the main loop then flushing wouldn't complete until after the recursed main loop returned, and various aspects of the state would get out of sync. To fix this, change flushing of the event queue to simply mark events as ready to flush, and let normal event delivery handle the rest. https://bugzilla.gnome.org/show_bug.cgi?id=705176
319 lines
17 KiB
C
319 lines
17 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 2010 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __GDK_DISPLAY_PRIVATE_H__
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#define __GDK_DISPLAY_PRIVATE_H__
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#include "gdkdisplay.h"
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#include "gdkwindow.h"
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#include "gdkcursor.h"
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G_BEGIN_DECLS
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#define GDK_DISPLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_DISPLAY, GdkDisplayClass))
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#define GDK_IS_DISPLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_DISPLAY))
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#define GDK_DISPLAY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_DISPLAY, GdkDisplayClass))
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typedef struct _GdkDisplayClass GdkDisplayClass;
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/* Tracks information about the keyboard grab on this display */
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typedef struct
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{
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GdkWindow *window;
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GdkWindow *native_window;
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gulong serial;
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gboolean owner_events;
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guint32 time;
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} GdkKeyboardGrabInfo;
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/* Tracks information about the pointer grab on this display */
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typedef struct
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{
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GdkWindow *window;
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GdkWindow *native_window;
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gulong serial_start;
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gulong serial_end; /* exclusive, i.e. not active on serial_end */
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guint event_mask;
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guint32 time;
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GdkGrabOwnership ownership;
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guint activated : 1;
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guint implicit_ungrab : 1;
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guint owner_events : 1;
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guint implicit : 1;
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} GdkDeviceGrabInfo;
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/* Tracks information about a touch implicit grab on this display */
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typedef struct
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{
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GdkDevice *device;
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GdkEventSequence *sequence;
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GdkWindow *window;
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GdkWindow *native_window;
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gulong serial;
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guint event_mask;
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guint32 time;
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} GdkTouchGrabInfo;
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/* Tracks information about which window and position the pointer last was in.
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* This is useful when we need to synthesize events later.
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* Note that we track toplevel_under_pointer using enter/leave events,
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* so in the case of a grab, either with owner_events==FALSE or with the
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* pointer in no clients window the x/y coordinates may actually be outside
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* the window.
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*/
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typedef struct
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{
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GdkWindow *toplevel_under_pointer; /* toplevel window containing the pointer, */
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/* tracked via native events */
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GdkWindow *window_under_pointer; /* window that last got a normal enter event */
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gdouble toplevel_x, toplevel_y;
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guint32 state;
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guint32 button;
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GdkDevice *last_slave;
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guint need_touch_press_enter : 1;
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} GdkPointerWindowInfo;
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typedef struct
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{
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guint32 button_click_time[2]; /* last 2 button click times */
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GdkWindow *button_window[2]; /* last 2 windows to receive button presses */
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gint button_number[2]; /* last 2 buttons to be pressed */
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gint button_x[2]; /* last 2 button click positions */
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gint button_y[2];
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} GdkMultipleClickInfo;
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struct _GdkDisplay
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{
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GObject parent_instance;
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GList *queued_events;
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GList *queued_tail;
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/* Information for determining if the latest button click
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* is part of a double-click or triple-click
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*/
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GHashTable *multiple_click_info;
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guint double_click_time; /* Maximum time between clicks in msecs */
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GdkDevice *core_pointer; /* Core pointer device */
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guint event_pause_count; /* How many times events are blocked */
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guint closed : 1; /* Whether this display has been closed */
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GArray *touch_implicit_grabs;
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GHashTable *device_grabs;
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GHashTable *motion_hint_info;
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GdkDeviceManager *device_manager;
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GHashTable *pointers_info; /* GdkPointerWindowInfo for each device */
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guint32 last_event_time; /* Last reported event time from server */
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guint double_click_distance; /* Maximum distance between clicks in pixels */
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};
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struct _GdkDisplayClass
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{
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GObjectClass parent_class;
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GType window_type; /* type for native windows for this display, set in class_init */
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const gchar * (*get_name) (GdkDisplay *display);
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GdkScreen * (*get_default_screen) (GdkDisplay *display);
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void (*beep) (GdkDisplay *display);
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void (*sync) (GdkDisplay *display);
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void (*flush) (GdkDisplay *display);
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gboolean (*has_pending) (GdkDisplay *display);
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void (*queue_events) (GdkDisplay *display);
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void (*make_default) (GdkDisplay *display);
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GdkWindow * (*get_default_group) (GdkDisplay *display);
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gboolean (*supports_selection_notification) (GdkDisplay *display);
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gboolean (*request_selection_notification) (GdkDisplay *display,
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GdkAtom selection);
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gboolean (*supports_shapes) (GdkDisplay *display);
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gboolean (*supports_input_shapes) (GdkDisplay *display);
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gboolean (*supports_composite) (GdkDisplay *display);
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gboolean (*supports_cursor_alpha) (GdkDisplay *display);
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gboolean (*supports_cursor_color) (GdkDisplay *display);
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gboolean (*supports_clipboard_persistence) (GdkDisplay *display);
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void (*store_clipboard) (GdkDisplay *display,
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GdkWindow *clipboard_window,
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guint32 time_,
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const GdkAtom *targets,
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gint n_targets);
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void (*get_default_cursor_size) (GdkDisplay *display,
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guint *width,
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guint *height);
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void (*get_maximal_cursor_size) (GdkDisplay *display,
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guint *width,
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guint *height);
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GdkCursor * (*get_cursor_for_type) (GdkDisplay *display,
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GdkCursorType type);
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GdkCursor * (*get_cursor_for_name) (GdkDisplay *display,
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const gchar *name);
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GdkCursor * (*get_cursor_for_surface) (GdkDisplay *display,
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cairo_surface_t *surface,
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gdouble x,
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gdouble y);
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GList * (*list_devices) (GdkDisplay *display);
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GdkAppLaunchContext * (*get_app_launch_context) (GdkDisplay *display);
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void (*before_process_all_updates) (GdkDisplay *display);
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void (*after_process_all_updates) (GdkDisplay *display);
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gulong (*get_next_serial) (GdkDisplay *display);
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void (*notify_startup_complete) (GdkDisplay *display,
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const gchar *startup_id);
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void (*event_data_copy) (GdkDisplay *display,
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const GdkEvent *event,
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GdkEvent *new_event);
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void (*event_data_free) (GdkDisplay *display,
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GdkEvent *event);
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void (*create_window_impl) (GdkDisplay *display,
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GdkWindow *window,
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GdkWindow *real_parent,
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GdkScreen *screen,
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GdkEventMask event_mask,
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GdkWindowAttr *attributes,
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gint attributes_mask);
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GdkKeymap * (*get_keymap) (GdkDisplay *display);
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void (*push_error_trap) (GdkDisplay *display);
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gint (*pop_error_trap) (GdkDisplay *display,
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gboolean ignore);
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GdkWindow * (*get_selection_owner) (GdkDisplay *display,
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GdkAtom selection);
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gboolean (*set_selection_owner) (GdkDisplay *display,
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GdkWindow *owner,
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GdkAtom selection,
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guint32 time,
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gboolean send_event);
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void (*send_selection_notify) (GdkDisplay *dispay,
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GdkWindow *requestor,
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GdkAtom selection,
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GdkAtom target,
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GdkAtom property,
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guint32 time);
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gint (*get_selection_property) (GdkDisplay *display,
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GdkWindow *requestor,
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guchar **data,
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GdkAtom *type,
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gint *format);
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void (*convert_selection) (GdkDisplay *display,
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GdkWindow *requestor,
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GdkAtom selection,
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GdkAtom target,
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guint32 time);
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gint (*text_property_to_utf8_list) (GdkDisplay *display,
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GdkAtom encoding,
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gint format,
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const guchar *text,
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gint length,
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gchar ***list);
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gchar * (*utf8_to_string_target) (GdkDisplay *display,
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const gchar *text);
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/* Signals */
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void (*opened) (GdkDisplay *display);
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void (*closed) (GdkDisplay *display,
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gboolean is_error);
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};
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typedef void (* GdkDisplayPointerInfoForeach) (GdkDisplay *display,
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GdkDevice *device,
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GdkPointerWindowInfo *device_info,
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gpointer user_data);
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void _gdk_display_device_grab_update (GdkDisplay *display,
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GdkDevice *device,
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GdkDevice *source_device,
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gulong current_serial);
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GdkDeviceGrabInfo * _gdk_display_get_last_device_grab (GdkDisplay *display,
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GdkDevice *device);
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GdkDeviceGrabInfo * _gdk_display_add_device_grab (GdkDisplay *display,
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GdkDevice *device,
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GdkWindow *window,
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GdkWindow *native_window,
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GdkGrabOwnership grab_ownership,
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gboolean owner_events,
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GdkEventMask event_mask,
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gulong serial_start,
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guint32 time,
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gboolean implicit);
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GdkDeviceGrabInfo * _gdk_display_has_device_grab (GdkDisplay *display,
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GdkDevice *device,
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gulong serial);
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gboolean _gdk_display_end_device_grab (GdkDisplay *display,
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GdkDevice *device,
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gulong serial,
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GdkWindow *if_child,
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gboolean implicit);
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gboolean _gdk_display_check_grab_ownership (GdkDisplay *display,
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GdkDevice *device,
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gulong serial);
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void _gdk_display_add_touch_grab (GdkDisplay *display,
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GdkDevice *device,
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GdkEventSequence *sequence,
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GdkWindow *window,
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GdkWindow *native_window,
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GdkEventMask event_mask,
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unsigned long serial_start,
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guint32 time);
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GdkTouchGrabInfo * _gdk_display_has_touch_grab (GdkDisplay *display,
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GdkDevice *device,
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GdkEventSequence *sequence,
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gulong serial);
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gboolean _gdk_display_end_touch_grab (GdkDisplay *display,
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GdkDevice *device,
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GdkEventSequence *sequence);
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void _gdk_display_enable_motion_hints (GdkDisplay *display,
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GdkDevice *device);
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GdkPointerWindowInfo * _gdk_display_get_pointer_info (GdkDisplay *display,
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GdkDevice *device);
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void _gdk_display_pointer_info_foreach (GdkDisplay *display,
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GdkDisplayPointerInfoForeach func,
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gpointer user_data);
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gulong _gdk_display_get_next_serial (GdkDisplay *display);
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void _gdk_display_pause_events (GdkDisplay *display);
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void _gdk_display_unpause_events (GdkDisplay *display);
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void _gdk_display_event_data_copy (GdkDisplay *display,
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const GdkEvent *event,
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GdkEvent *new_event);
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void _gdk_display_event_data_free (GdkDisplay *display,
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GdkEvent *event);
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void _gdk_display_create_window_impl (GdkDisplay *display,
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GdkWindow *window,
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GdkWindow *real_parent,
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GdkScreen *screen,
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GdkEventMask event_mask,
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GdkWindowAttr *attributes,
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gint attributes_mask);
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GdkWindow * _gdk_display_create_window (GdkDisplay *display);
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G_END_DECLS
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#endif /* __GDK_DISPLAY_PRIVATE_H__ */
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