forked from AuroraMiddleware/gtk
323df2b280
An event filter may add or remove filters itself. This patch does two things to address this case. The first is to take a temporary reference to the filter while it is being used. The second is to wait until after the filter function is run before determining the next node in the list to process. This guards against changes to the next node. It also does not run functions that have been marked as removed. Though I'm not sure if this case can arise. https://bugzilla.gnome.org/show_bug.cgi?id=635380
573 lines
19 KiB
C
573 lines
19 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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/* Uninstalled header defining types and functions internal to GDK */
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#ifndef __GDK_INTERNALS_H__
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#define __GDK_INTERNALS_H__
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#include <gio/gio.h>
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#include <gdk/gdktypes.h>
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#include <gdk/gdkwindow.h>
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#include <gdk/gdkprivate.h>
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#ifdef USE_MEDIALIB
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#include <gdk/gdkmedialib.h>
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#endif
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G_BEGIN_DECLS
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/**********************
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* General Facilities *
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**********************/
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/* Debugging support */
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typedef struct _GdkColorInfo GdkColorInfo;
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typedef struct _GdkEventFilter GdkEventFilter;
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typedef struct _GdkClientFilter GdkClientFilter;
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typedef enum {
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GDK_COLOR_WRITEABLE = 1 << 0
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} GdkColorInfoFlags;
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struct _GdkColorInfo
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{
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GdkColorInfoFlags flags;
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guint ref_count;
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};
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typedef enum {
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GDK_EVENT_FILTER_REMOVED = 1 << 0
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} GdkEventFilterFlags;
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struct _GdkEventFilter {
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GdkFilterFunc function;
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gpointer data;
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GdkEventFilterFlags flags;
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guint ref_count;
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};
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struct _GdkClientFilter {
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GdkAtom type;
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GdkFilterFunc function;
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gpointer data;
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};
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typedef enum {
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GDK_DEBUG_MISC = 1 << 0,
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GDK_DEBUG_EVENTS = 1 << 1,
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GDK_DEBUG_DND = 1 << 2,
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GDK_DEBUG_XIM = 1 << 3,
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GDK_DEBUG_NOGRABS = 1 << 4,
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GDK_DEBUG_COLORMAP = 1 << 5,
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GDK_DEBUG_INPUT = 1 << 6,
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GDK_DEBUG_CURSOR = 1 << 7,
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GDK_DEBUG_MULTIHEAD = 1 << 8,
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GDK_DEBUG_XINERAMA = 1 << 9,
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GDK_DEBUG_DRAW = 1 <<10,
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GDK_DEBUG_EVENTLOOP = 1 <<11
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} GdkDebugFlag;
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extern GList *_gdk_default_filters;
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extern GdkWindow *_gdk_parent_root;
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extern guint _gdk_debug_flags;
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extern gboolean _gdk_native_windows;
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#ifdef G_ENABLE_DEBUG
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#define GDK_NOTE(type,action) G_STMT_START { \
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if (_gdk_debug_flags & GDK_DEBUG_##type) \
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{ action; }; } G_STMT_END
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#else /* !G_ENABLE_DEBUG */
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#define GDK_NOTE(type,action)
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#endif /* G_ENABLE_DEBUG */
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/* Arg parsing */
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typedef enum
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{
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GDK_ARG_STRING,
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GDK_ARG_INT,
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GDK_ARG_BOOL,
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GDK_ARG_NOBOOL,
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GDK_ARG_CALLBACK
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} GdkArgType;
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typedef struct _GdkArgContext GdkArgContext;
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typedef struct _GdkArgDesc GdkArgDesc;
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typedef void (*GdkArgFunc) (const char *name, const char *arg, gpointer data);
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struct _GdkArgContext
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{
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GPtrArray *tables;
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gpointer cb_data;
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};
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struct _GdkArgDesc
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{
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const char *name;
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GdkArgType type;
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gpointer location;
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GdkArgFunc callback;
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};
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/* Event handling */
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typedef struct _GdkEventPrivate GdkEventPrivate;
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typedef enum
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{
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/* Following flag is set for events on the event queue during
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* translation and cleared afterwards.
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*/
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GDK_EVENT_PENDING = 1 << 0
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} GdkEventFlags;
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struct _GdkEventPrivate
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{
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GdkEvent event;
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guint flags;
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GdkScreen *screen;
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gpointer windowing_data;
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GdkDevice *device;
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};
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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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gboolean owner_events;
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guint event_mask;
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gboolean implicit;
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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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} GdkDeviceGrabInfo;
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typedef struct _GdkInputWindow GdkInputWindow;
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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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/* Private version of GdkWindowObject. The initial part of this strucuture
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is public for historical reasons. Don't change that part */
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typedef struct _GdkWindowPaint GdkWindowPaint;
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#define GDK_WINDOW_OBJECT(object) ((GdkWindowObject *) GDK_WINDOW (object))
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struct _GdkWindowObject
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{
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GdkDrawable parent_instance;
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GdkDrawable *impl; /* window-system-specific delegate object */
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GdkWindowObject *parent;
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GdkVisual *visual;
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gpointer user_data;
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gint x;
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gint y;
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gint extension_events;
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GList *filters;
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GList *children;
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cairo_pattern_t *background;
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GSList *paint_stack;
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cairo_region_t *update_area;
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guint update_freeze_count;
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guint8 window_type;
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guint8 depth;
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guint8 resize_count;
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GdkWindowState state;
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guint guffaw_gravity : 1;
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guint input_only : 1;
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guint modal_hint : 1;
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guint composited : 1;
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guint destroyed : 2;
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guint accept_focus : 1;
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guint focus_on_map : 1;
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guint shaped : 1;
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guint support_multidevice : 1;
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GdkEventMask event_mask;
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guint update_and_descendants_freeze_count;
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/* The GdkWindowObject that has the impl, ref:ed if another window.
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* This ref is required to keep the wrapper of the impl window alive
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* for as long as any GdkWindow references the impl. */
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GdkWindowObject *impl_window;
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int abs_x, abs_y; /* Absolute offset in impl */
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gint width, height;
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guint32 clip_tag;
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cairo_region_t *clip_region; /* Clip region (wrt toplevel) in window coords */
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cairo_region_t *clip_region_with_children; /* Clip region in window coords */
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GdkCursor *cursor;
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GHashTable *device_cursor;
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gint8 toplevel_window_type;
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guint synthesize_crossing_event_queued : 1;
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guint effective_visibility : 2;
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guint visibility : 2; /* The visibility wrt the toplevel (i.e. based on clip_region) */
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guint native_visibility : 2; /* the native visibility of a impl windows */
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guint viewable : 1; /* mapped and all parents mapped */
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guint applied_shape : 1;
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guint num_offscreen_children;
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GdkWindowPaint *implicit_paint;
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GdkInputWindow *input_window; /* only set for impl windows */
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GList *outstanding_moves;
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cairo_region_t *shape;
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cairo_region_t *input_shape;
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cairo_surface_t *cairo_surface;
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guint outstanding_surfaces; /* only set on impl window */
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GList *devices_inside;
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GHashTable *device_events;
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};
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#define GDK_WINDOW_TYPE(d) (((GdkWindowObject*)(GDK_WINDOW (d)))->window_type)
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#define GDK_WINDOW_DESTROYED(d) (((GdkWindowObject*)(GDK_WINDOW (d)))->destroyed)
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extern GdkEventFunc _gdk_event_func; /* Callback for events */
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extern gpointer _gdk_event_data;
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extern GDestroyNotify _gdk_event_notify;
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extern GSList *_gdk_displays;
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extern gchar *_gdk_display_name;
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extern gint _gdk_screen_number;
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extern gchar *_gdk_display_arg_name;
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extern gboolean _gdk_enable_multidevice;
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void _gdk_events_queue (GdkDisplay *display);
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GdkEvent* _gdk_event_unqueue (GdkDisplay *display);
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GList* _gdk_event_queue_find_first (GdkDisplay *display);
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void _gdk_event_queue_remove_link (GdkDisplay *display,
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GList *node);
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GList* _gdk_event_queue_prepend (GdkDisplay *display,
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GdkEvent *event);
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GList* _gdk_event_queue_append (GdkDisplay *display,
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GdkEvent *event);
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GList* _gdk_event_queue_insert_after (GdkDisplay *display,
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GdkEvent *after_event,
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GdkEvent *event);
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GList* _gdk_event_queue_insert_before(GdkDisplay *display,
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GdkEvent *after_event,
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GdkEvent *event);
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void _gdk_event_button_generate (GdkDisplay *display,
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GdkEvent *event);
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void _gdk_windowing_event_data_copy (const GdkEvent *src,
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GdkEvent *dst);
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void _gdk_windowing_event_data_free (GdkEvent *event);
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void gdk_synthesize_window_state (GdkWindow *window,
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GdkWindowState unset_flags,
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GdkWindowState set_flags);
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GdkDeviceManager * _gdk_device_manager_new (GdkDisplay *display);
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gboolean _gdk_cairo_surface_extents (cairo_surface_t *surface,
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GdkRectangle *extents);
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cairo_surface_t *_gdk_drawable_ref_cairo_surface (GdkDrawable *drawable);
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cairo_surface_t * _gdk_drawable_create_cairo_surface (GdkDrawable *drawable,
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int width,
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int height);
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/*************************************
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* Interfaces used by windowing code *
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*************************************/
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void _gdk_window_impl_new (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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void _gdk_window_destroy (GdkWindow *window,
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gboolean foreign_destroy);
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void _gdk_window_clear_update_area (GdkWindow *window);
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void _gdk_window_update_size (GdkWindow *window);
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gboolean _gdk_window_update_viewable (GdkWindow *window);
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void _gdk_window_process_updates_recurse (GdkWindow *window,
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cairo_region_t *expose_region);
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void _gdk_screen_close (GdkScreen *screen);
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const char *_gdk_get_sm_client_id (void);
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/*****************************************
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* Interfaces provided by windowing code *
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*****************************************/
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/* Font/string functions implemented in module-specific code */
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void _gdk_cursor_destroy (GdkCursor *cursor);
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void _gdk_windowing_init (void);
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extern const GOptionEntry _gdk_windowing_args[];
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void _gdk_windowing_set_default_display (GdkDisplay *display);
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gchar *_gdk_windowing_substitute_screen_number (const gchar *display_name,
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gint screen_number);
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gulong _gdk_windowing_window_get_next_serial (GdkDisplay *display);
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void _gdk_windowing_window_get_offsets (GdkWindow *window,
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gint *x_offset,
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gint *y_offset);
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cairo_region_t *_gdk_windowing_window_get_shape (GdkWindow *window);
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cairo_region_t *_gdk_windowing_window_get_input_shape(GdkWindow *window);
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void _gdk_windowing_window_beep (GdkWindow *window);
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void _gdk_windowing_get_device_state (GdkDisplay *display,
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GdkDevice *device,
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GdkScreen **screen,
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gint *x,
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gint *y,
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GdkModifierType *mask);
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GdkWindow* _gdk_windowing_window_at_device_position (GdkDisplay *display,
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GdkDevice *device,
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gint *win_x,
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gint *win_y,
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GdkModifierType *mask,
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gboolean get_toplevel);
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GdkGrabStatus _gdk_windowing_device_grab (GdkDevice *device,
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GdkWindow *window,
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GdkWindow *native,
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gboolean owner_events,
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GdkEventMask event_mask,
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GdkWindow *confine_to,
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GdkCursor *cursor,
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guint32 time);
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void _gdk_windowing_got_event (GdkDisplay *display,
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GList *event_link,
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GdkEvent *event,
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gulong serial);
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void _gdk_windowing_window_process_updates_recurse (GdkWindow *window,
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cairo_region_t *expose_region);
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void _gdk_windowing_before_process_all_updates (void);
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void _gdk_windowing_after_process_all_updates (void);
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/* Return the number of bits-per-pixel for images of the specified depth. */
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gint _gdk_windowing_get_bits_for_depth (GdkDisplay *display,
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gint depth);
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#define GDK_WINDOW_IS_MAPPED(window) ((((GdkWindowObject*)window)->state & GDK_WINDOW_STATE_WITHDRAWN) == 0)
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/* Called when gdk_window_destroy() is called on a foreign window
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* or an ancestor of the foreign window. It should generally reparent
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* the window out of it's current heirarchy, hide it, and then
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* send a message to the owner requesting that the window be destroyed.
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*/
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void _gdk_windowing_window_destroy_foreign (GdkWindow *window);
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void _gdk_windowing_display_set_sm_client_id (GdkDisplay *display,
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const gchar *sm_client_id);
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void _gdk_windowing_window_set_composited (GdkWindow *window,
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gboolean composited);
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#define GDK_TYPE_PAINTABLE (_gdk_paintable_get_type ())
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#define GDK_PAINTABLE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GDK_TYPE_PAINTABLE, GdkPaintable))
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#define GDK_IS_PAINTABLE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GDK_TYPE_PAINTABLE))
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#define GDK_PAINTABLE_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), GDK_TYPE_PAINTABLE, GdkPaintableIface))
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typedef struct _GdkPaintable GdkPaintable;
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typedef struct _GdkPaintableIface GdkPaintableIface;
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struct _GdkPaintableIface
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{
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GTypeInterface g_iface;
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void (* begin_paint_region) (GdkPaintable *paintable,
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GdkWindow *window,
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const cairo_region_t *region);
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void (* end_paint) (GdkPaintable *paintable);
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};
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GType _gdk_paintable_get_type (void) G_GNUC_CONST;
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/* Implementation types */
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GType _gdk_window_impl_get_type (void) G_GNUC_CONST;
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struct GdkAppLaunchContextPrivate
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{
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GdkDisplay *display;
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GdkScreen *screen;
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gint workspace;
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guint32 timestamp;
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GIcon *icon;
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char *icon_name;
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};
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char *_gdk_windowing_get_startup_notify_id (GAppLaunchContext *context,
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GAppInfo *info,
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GList *files);
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void _gdk_windowing_launch_failed (GAppLaunchContext *context,
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const char *startup_notify_id);
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void _gdk_display_device_grab_update (GdkDisplay *display,
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GdkDevice *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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unsigned long 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_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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void _gdk_window_invalidate_for_expose (GdkWindow *window,
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cairo_region_t *region);
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GdkWindow * _gdk_window_find_child_at (GdkWindow *window,
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int x, int y);
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GdkWindow * _gdk_window_find_descendant_at (GdkWindow *toplevel,
|
|
double x, double y,
|
|
double *found_x,
|
|
double *found_y);
|
|
|
|
void _gdk_window_add_damage (GdkWindow *toplevel,
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|
cairo_region_t *damaged_region);
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|
|
|
GdkEvent * _gdk_make_event (GdkWindow *window,
|
|
GdkEventType type,
|
|
GdkEvent *event_in_queue,
|
|
gboolean before_event);
|
|
gboolean _gdk_window_event_parent_of (GdkWindow *parent,
|
|
GdkWindow *child);
|
|
|
|
void _gdk_synthesize_crossing_events (GdkDisplay *display,
|
|
GdkWindow *src,
|
|
GdkWindow *dest,
|
|
GdkDevice *device,
|
|
GdkCrossingMode mode,
|
|
gint toplevel_x,
|
|
gint toplevel_y,
|
|
GdkModifierType mask,
|
|
guint32 time_,
|
|
GdkEvent *event_in_queue,
|
|
gulong serial,
|
|
gboolean non_linear);
|
|
void _gdk_display_set_window_under_pointer (GdkDisplay *display,
|
|
GdkDevice *device,
|
|
GdkWindow *window);
|
|
|
|
|
|
void _gdk_synthesize_crossing_events_for_geometry_change (GdkWindow *changed_window);
|
|
|
|
cairo_region_t *_gdk_window_calculate_full_clip_region (GdkWindow *window,
|
|
GdkWindow *base_window,
|
|
gboolean do_children,
|
|
gint *base_x_offset,
|
|
gint *base_y_offset);
|
|
gboolean _gdk_window_has_impl (GdkWindow *window);
|
|
GdkWindow * _gdk_window_get_impl_window (GdkWindow *window);
|
|
GdkWindow *_gdk_window_get_input_window_for_event (GdkWindow *native_window,
|
|
GdkEventType event_type,
|
|
int x, int y,
|
|
gulong serial);
|
|
|
|
/*****************************
|
|
* offscreen window routines *
|
|
*****************************/
|
|
GType gdk_offscreen_window_get_type (void);
|
|
void _gdk_offscreen_window_new (GdkWindow *window,
|
|
GdkWindowAttr *attributes,
|
|
gint attributes_mask);
|
|
cairo_surface_t * _gdk_offscreen_window_create_surface (GdkWindow *window,
|
|
gint width,
|
|
gint height);
|
|
|
|
|
|
/************************************
|
|
* Initialization and exit routines *
|
|
************************************/
|
|
|
|
void _gdk_windowing_exit (void);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GDK_INTERNALS_H__ */
|