forked from AuroraMiddleware/gtk
005781021e
Instead of using the filters that the drop side uses, handle events in the event filter installed by the DragContext.
3237 lines
101 KiB
C
3237 lines
101 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-1999 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
|
||
* 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
|
||
* 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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/*
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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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#include "config.h"
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#include "gdkx11dnd.h"
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#include "gdk-private.h"
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#include "gdkasync.h"
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#include "gdkclipboardprivate.h"
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#include "gdkclipboard-x11.h"
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#include "gdkdeviceprivate.h"
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#include "gdkdisplay-x11.h"
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#include "gdkdndprivate.h"
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#include "gdkinternals.h"
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#include "gdkintl.h"
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#include "gdkproperty.h"
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#include "gdkprivate-x11.h"
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#include "gdkscreen-x11.h"
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#include "gdkselectioninputstream-x11.h"
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#include "gdkselectionoutputstream-x11.h"
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/Xatom.h>
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#include <X11/extensions/shape.h>
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#ifdef HAVE_XCOMPOSITE
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#include <X11/extensions/Xcomposite.h>
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#endif
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#include <string.h>
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typedef enum {
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GDK_DRAG_STATUS_DRAG,
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GDK_DRAG_STATUS_MOTION_WAIT,
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GDK_DRAG_STATUS_ACTION_WAIT,
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GDK_DRAG_STATUS_DROP
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} GtkDragStatus;
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/*
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* GdkDragProtocol:
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* @GDK_DRAG_PROTO_NONE: no protocol.
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* @GDK_DRAG_PROTO_XDND: The Xdnd protocol.
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* @GDK_DRAG_PROTO_ROOTWIN: An extension to the Xdnd protocol for
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* unclaimed root window drops.
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*
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* Used in #GdkDragContext to indicate the protocol according to
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* which DND is done.
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*/
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typedef enum
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{
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GDK_DRAG_PROTO_NONE = 0,
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GDK_DRAG_PROTO_XDND,
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GDK_DRAG_PROTO_ROOTWIN
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} GdkDragProtocol;
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typedef struct {
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guint32 xid;
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gint x, y, width, height;
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gboolean mapped;
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gboolean shape_selected;
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gboolean shape_valid;
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cairo_region_t *shape;
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} GdkCacheChild;
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struct _GdkSurfaceCache {
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GList *children;
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GHashTable *child_hash;
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guint old_event_mask;
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GdkDisplay *display;
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gint ref_count;
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};
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struct _GdkX11DragContext
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{
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GdkDragContext context;
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GdkDragProtocol protocol;
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gint start_x; /* Where the drag started */
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gint start_y;
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guint16 last_x; /* Coordinates from last event */
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guint16 last_y;
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gulong timestamp; /* Timestamp we claimed the DND selection with */
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GdkDragAction xdnd_actions; /* What is currently set in XdndActionList */
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guint version; /* Xdnd protocol version */
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GdkSurfaceCache *cache;
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GdkSurface *drag_surface;
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GdkSurface *ipc_surface;
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GdkCursor *cursor;
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GdkSeat *grab_seat;
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GdkDragAction actions;
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GdkDragAction current_action;
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gint hot_x;
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gint hot_y;
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Window dest_xid; /* The last window we looked up */
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Window drop_xid; /* The (non-proxied) window that is receiving drops */
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guint xdnd_targets_set : 1; /* Whether we've already set XdndTypeList */
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guint xdnd_have_actions : 1; /* Whether an XdndActionList was provided */
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guint drag_status : 4; /* current status of drag */
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guint drop_failed : 1; /* Whether the drop was unsuccessful */
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};
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struct _GdkX11DragContextClass
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{
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GdkDragContextClass parent_class;
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};
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typedef struct {
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gint keysym;
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gint modifiers;
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} GrabKey;
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static GrabKey grab_keys[] = {
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{ XK_Escape, 0 },
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{ XK_space, 0 },
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{ XK_KP_Space, 0 },
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{ XK_Return, 0 },
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{ XK_KP_Enter, 0 },
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{ XK_Up, 0 },
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{ XK_Up, Mod1Mask },
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{ XK_Down, 0 },
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{ XK_Down, Mod1Mask },
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{ XK_Left, 0 },
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{ XK_Left, Mod1Mask },
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{ XK_Right, 0 },
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{ XK_Right, Mod1Mask },
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{ XK_KP_Up, 0 },
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{ XK_KP_Up, Mod1Mask },
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{ XK_KP_Down, 0 },
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{ XK_KP_Down, Mod1Mask },
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{ XK_KP_Left, 0 },
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{ XK_KP_Left, Mod1Mask },
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{ XK_KP_Right, 0 },
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{ XK_KP_Right, Mod1Mask }
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};
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/* Forward declarations */
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static GdkSurfaceCache *gdk_surface_cache_ref (GdkSurfaceCache *cache);
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static void gdk_surface_cache_unref (GdkSurfaceCache *cache);
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static gboolean xdnd_enter_filter (GdkSurface *surface,
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const XEvent *xevent);
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static gboolean xdnd_leave_filter (GdkSurface *surface,
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const XEvent *xevent);
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static gboolean xdnd_position_filter (GdkSurface *surface,
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const XEvent *xevent);
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static gboolean xdnd_drop_filter (GdkSurface *surface,
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const XEvent *xevent);
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static void xdnd_manage_source_filter (GdkDrop *drop,
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GdkSurface *surface,
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gboolean add_filter);
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gboolean gdk_x11_drag_context_handle_event (GdkDragContext *context,
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const GdkEvent *event);
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void gdk_x11_drag_context_action_changed (GdkDragContext *context,
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GdkDragAction action);
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static GList *contexts;
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static GSList *window_caches;
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static const struct {
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const char *atom_name;
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gboolean (* func) (GdkSurface *surface, const XEvent *event);
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} xdnd_filters[] = {
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{ "XdndEnter", xdnd_enter_filter },
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{ "XdndLeave", xdnd_leave_filter },
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{ "XdndPosition", xdnd_position_filter },
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{ "XdndDrop", xdnd_drop_filter },
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};
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G_DEFINE_TYPE (GdkX11DragContext, gdk_x11_drag_context, GDK_TYPE_DRAG_CONTEXT)
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static void
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gdk_x11_drag_context_init (GdkX11DragContext *context)
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{
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contexts = g_list_prepend (contexts, context);
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}
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static void gdk_x11_drag_context_finalize (GObject *object);
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static GdkSurface * gdk_x11_drag_context_find_surface (GdkDragContext *context,
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GdkSurface *drag_surface,
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gint x_root,
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gint y_root,
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GdkDragProtocol *protocol);
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static gboolean gdk_x11_drag_context_drag_motion (GdkDragContext *context,
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GdkSurface *dest_surface,
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GdkDragProtocol protocol,
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gint x_root,
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gint y_root,
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GdkDragAction suggested_action,
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GdkDragAction possible_actions,
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guint32 time);
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static void gdk_x11_drag_context_status (GdkDrop *drop,
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GdkDragAction actions);
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static void gdk_x11_drag_context_drag_abort (GdkDragContext *context,
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guint32 time_);
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static void gdk_x11_drag_context_drag_drop (GdkDragContext *context,
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guint32 time_);
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static void gdk_x11_drag_context_finish (GdkDrop *drop,
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GdkDragAction action);
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static GdkSurface * gdk_x11_drag_context_get_drag_surface (GdkDragContext *context);
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static void gdk_x11_drag_context_set_hotspot (GdkDragContext *context,
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gint hot_x,
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gint hot_y);
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static void gdk_x11_drag_context_drop_done (GdkDragContext *context,
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gboolean success);
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static void gdk_x11_drag_context_set_cursor (GdkDragContext *context,
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GdkCursor *cursor);
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static void gdk_x11_drag_context_cancel (GdkDragContext *context,
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GdkDragCancelReason reason);
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static void gdk_x11_drag_context_drop_performed (GdkDragContext *context,
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guint32 time);
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static void
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gdk_x11_drag_context_read_got_stream (GObject *source,
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GAsyncResult *res,
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gpointer data)
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{
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GTask *task = data;
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GError *error = NULL;
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GInputStream *stream;
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const char *type;
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int format;
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stream = gdk_x11_selection_input_stream_new_finish (res, &type, &format, &error);
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if (stream == NULL)
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{
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GSList *targets, *next;
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targets = g_task_get_task_data (task);
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next = targets->next;
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if (next)
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{
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GdkDrop *drop = GDK_DROP (g_task_get_source_object (task));
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GDK_DISPLAY_NOTE (gdk_drop_get_display (drop), DND, g_printerr ("reading %s failed, trying %s next\n",
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(char *) targets->data, (char *) next->data));
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targets->next = NULL;
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g_task_set_task_data (task, next, (GDestroyNotify) g_slist_free);
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gdk_x11_selection_input_stream_new_async (gdk_drop_get_display (drop),
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"XdndSelection",
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next->data,
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CurrentTime,
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g_task_get_priority (task),
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g_task_get_cancellable (task),
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gdk_x11_drag_context_read_got_stream,
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task);
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g_error_free (error);
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return;
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}
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g_task_return_error (task, error);
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}
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else
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{
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const char *mime_type = ((GSList *) g_task_get_task_data (task))->data;
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#if 0
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gsize i;
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for (i = 0; i < G_N_ELEMENTS (special_targets); i++)
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{
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if (g_str_equal (mime_type, special_targets[i].x_target))
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{
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g_assert (special_targets[i].mime_type != NULL);
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GDK_DISPLAY_NOTE (CLIPBOARD, g_printerr ("%s: reading with converter from %s to %s\n",
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cb->selection, mime_type, special_targets[i].mime_type));
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mime_type = g_intern_string (special_targets[i].mime_type);
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g_task_set_task_data (task, g_slist_prepend (NULL, (gpointer) mime_type), (GDestroyNotify) g_slist_free);
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stream = special_targets[i].convert (cb, stream, type, format);
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break;
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}
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}
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#endif
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GDK_NOTE (DND, g_printerr ("reading DND as %s now\n",
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mime_type));
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g_task_return_pointer (task, stream, g_object_unref);
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}
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g_object_unref (task);
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}
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static void
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gdk_x11_drag_context_read_async (GdkDrop *drop,
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GdkContentFormats *formats,
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int io_priority,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data)
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{
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GSList *targets;
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GTask *task;
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task = g_task_new (drop, cancellable, callback, user_data);
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g_task_set_priority (task, io_priority);
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g_task_set_source_tag (task, gdk_x11_drag_context_read_async);
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targets = gdk_x11_clipboard_formats_to_targets (formats);
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g_task_set_task_data (task, targets, (GDestroyNotify) g_slist_free);
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if (targets == NULL)
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{
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g_task_return_new_error (task, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
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_("No compatible transfer format found"));
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return;
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}
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GDK_DISPLAY_NOTE (gdk_drop_get_display (drop), DND, g_printerr ("new read for %s (%u other options)\n",
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(char *) targets->data, g_slist_length (targets->next)));
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gdk_x11_selection_input_stream_new_async (gdk_drop_get_display (drop),
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"XdndSelection",
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targets->data,
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CurrentTime,
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io_priority,
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cancellable,
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gdk_x11_drag_context_read_got_stream,
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task);
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}
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||
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static GInputStream *
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gdk_x11_drag_context_read_finish (GdkDrop *drop,
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const char **out_mime_type,
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GAsyncResult *result,
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GError **error)
|
||
{
|
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GTask *task;
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g_return_val_if_fail (g_task_is_valid (result, G_OBJECT (drop)), NULL);
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task = G_TASK (result);
|
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g_return_val_if_fail (g_task_get_source_tag (task) == gdk_x11_drag_context_read_async, NULL);
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if (out_mime_type)
|
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{
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GSList *targets;
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||
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targets = g_task_get_task_data (task);
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*out_mime_type = targets ? targets->data : NULL;
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}
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return g_task_propagate_pointer (task, error);
|
||
}
|
||
|
||
static void
|
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gdk_x11_drag_context_class_init (GdkX11DragContextClass *klass)
|
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{
|
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
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GdkDropClass *drop_class = GDK_DROP_CLASS (klass);
|
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GdkDragContextClass *context_class = GDK_DRAG_CONTEXT_CLASS (klass);
|
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|
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object_class->finalize = gdk_x11_drag_context_finalize;
|
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|
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drop_class->status = gdk_x11_drag_context_status;
|
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drop_class->finish = gdk_x11_drag_context_finish;
|
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drop_class->read_async = gdk_x11_drag_context_read_async;
|
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drop_class->read_finish = gdk_x11_drag_context_read_finish;
|
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|
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context_class->drag_abort = gdk_x11_drag_context_drag_abort;
|
||
context_class->drag_drop = gdk_x11_drag_context_drag_drop;
|
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context_class->get_drag_surface = gdk_x11_drag_context_get_drag_surface;
|
||
context_class->set_hotspot = gdk_x11_drag_context_set_hotspot;
|
||
context_class->drop_done = gdk_x11_drag_context_drop_done;
|
||
context_class->set_cursor = gdk_x11_drag_context_set_cursor;
|
||
context_class->cancel = gdk_x11_drag_context_cancel;
|
||
context_class->drop_performed = gdk_x11_drag_context_drop_performed;
|
||
context_class->handle_event = gdk_x11_drag_context_handle_event;
|
||
context_class->action_changed = gdk_x11_drag_context_action_changed;
|
||
}
|
||
|
||
static void
|
||
gdk_x11_drag_context_finalize (GObject *object)
|
||
{
|
||
GdkDragContext *context = GDK_DRAG_CONTEXT (object);
|
||
GdkX11DragContext *x11_context = GDK_X11_DRAG_CONTEXT (object);
|
||
GdkSurface *drag_surface, *ipc_surface;
|
||
|
||
if (context->source_surface)
|
||
{
|
||
if ((x11_context->protocol == GDK_DRAG_PROTO_XDND) && !context->is_source)
|
||
xdnd_manage_source_filter (GDK_DROP (context), context->source_surface, FALSE);
|
||
}
|
||
|
||
if (x11_context->cache)
|
||
gdk_surface_cache_unref (x11_context->cache);
|
||
|
||
contexts = g_list_remove (contexts, context);
|
||
|
||
drag_surface = context->drag_surface;
|
||
ipc_surface = x11_context->ipc_surface;
|
||
|
||
G_OBJECT_CLASS (gdk_x11_drag_context_parent_class)->finalize (object);
|
||
|
||
if (drag_surface)
|
||
gdk_surface_destroy (drag_surface);
|
||
if (ipc_surface)
|
||
gdk_surface_destroy (ipc_surface);
|
||
}
|
||
|
||
/* Drag Contexts */
|
||
|
||
static GdkDragContext *
|
||
gdk_drag_context_find (GdkDisplay *display,
|
||
Window source_xid,
|
||
Window dest_xid)
|
||
{
|
||
GList *tmp_list;
|
||
GdkDragContext *context;
|
||
GdkX11DragContext *context_x11;
|
||
Window context_dest_xid;
|
||
|
||
for (tmp_list = contexts; tmp_list; tmp_list = tmp_list->next)
|
||
{
|
||
context = (GdkDragContext *)tmp_list->data;
|
||
context_x11 = (GdkX11DragContext *)context;
|
||
|
||
if ((context->source_surface && gdk_surface_get_display (context->source_surface) != display) ||
|
||
(context->dest_surface && gdk_surface_get_display (context->dest_surface) != display))
|
||
continue;
|
||
|
||
context_dest_xid = context->dest_surface
|
||
? (context_x11->drop_xid
|
||
? context_x11->drop_xid
|
||
: GDK_SURFACE_XID (context->dest_surface))
|
||
: None;
|
||
|
||
if ((context->is_source) &&
|
||
((source_xid == None) || (context->source_surface &&
|
||
(GDK_SURFACE_XID (context->source_surface) == source_xid))) &&
|
||
((dest_xid == None) || (context_dest_xid == dest_xid)))
|
||
return context;
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
static void
|
||
precache_target_list (GdkDragContext *context)
|
||
{
|
||
GdkContentFormats *formats = gdk_drag_context_get_formats (context);
|
||
const char * const *atoms;
|
||
gsize n_atoms;
|
||
|
||
atoms = gdk_content_formats_get_mime_types (formats, &n_atoms);
|
||
|
||
_gdk_x11_precache_atoms (gdk_drag_context_get_display (context),
|
||
(const gchar **) atoms,
|
||
n_atoms);
|
||
}
|
||
|
||
/* Utility functions */
|
||
|
||
static void
|
||
free_cache_child (GdkCacheChild *child,
|
||
GdkDisplay *display)
|
||
{
|
||
if (child->shape)
|
||
cairo_region_destroy (child->shape);
|
||
|
||
if (child->shape_selected && display)
|
||
{
|
||
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
|
||
|
||
XShapeSelectInput (display_x11->xdisplay, child->xid, 0);
|
||
}
|
||
|
||
g_free (child);
|
||
}
|
||
|
||
static void
|
||
gdk_surface_cache_add (GdkSurfaceCache *cache,
|
||
guint32 xid,
|
||
gint x,
|
||
gint y,
|
||
gint width,
|
||
gint height,
|
||
gboolean mapped)
|
||
{
|
||
GdkCacheChild *child = g_new (GdkCacheChild, 1);
|
||
|
||
child->xid = xid;
|
||
child->x = x;
|
||
child->y = y;
|
||
child->width = width;
|
||
child->height = height;
|
||
child->mapped = mapped;
|
||
child->shape_selected = FALSE;
|
||
child->shape_valid = FALSE;
|
||
child->shape = NULL;
|
||
|
||
cache->children = g_list_prepend (cache->children, child);
|
||
g_hash_table_insert (cache->child_hash, GUINT_TO_POINTER (xid),
|
||
cache->children);
|
||
}
|
||
|
||
GdkFilterReturn
|
||
gdk_surface_cache_shape_filter (const XEvent *xevent,
|
||
GdkEvent *event,
|
||
gpointer data)
|
||
{
|
||
GdkSurfaceCache *cache = data;
|
||
|
||
GdkX11Display *display = GDK_X11_DISPLAY (cache->display);
|
||
|
||
if (display->have_shapes &&
|
||
xevent->type == display->shape_event_base + ShapeNotify)
|
||
{
|
||
XShapeEvent *xse = (XShapeEvent*)xevent;
|
||
GList *node;
|
||
|
||
node = g_hash_table_lookup (cache->child_hash,
|
||
GUINT_TO_POINTER (xse->window));
|
||
if (node)
|
||
{
|
||
GdkCacheChild *child = node->data;
|
||
child->shape_valid = FALSE;
|
||
if (child->shape)
|
||
{
|
||
cairo_region_destroy (child->shape);
|
||
child->shape = NULL;
|
||
}
|
||
}
|
||
|
||
return GDK_FILTER_REMOVE;
|
||
}
|
||
|
||
return GDK_FILTER_CONTINUE;
|
||
}
|
||
|
||
GdkFilterReturn
|
||
gdk_surface_cache_filter (const XEvent *xevent,
|
||
GdkEvent *event,
|
||
gpointer data)
|
||
{
|
||
GdkSurfaceCache *cache = data;
|
||
|
||
switch (xevent->type)
|
||
{
|
||
case CirculateNotify:
|
||
break;
|
||
case ConfigureNotify:
|
||
{
|
||
const XConfigureEvent *xce = &xevent->xconfigure;
|
||
GList *node;
|
||
|
||
node = g_hash_table_lookup (cache->child_hash,
|
||
GUINT_TO_POINTER (xce->window));
|
||
if (node)
|
||
{
|
||
GdkCacheChild *child = node->data;
|
||
child->x = xce->x;
|
||
child->y = xce->y;
|
||
child->width = xce->width;
|
||
child->height = xce->height;
|
||
if (xce->above == None && (node->next))
|
||
{
|
||
GList *last = g_list_last (cache->children);
|
||
cache->children = g_list_remove_link (cache->children, node);
|
||
last->next = node;
|
||
node->next = NULL;
|
||
node->prev = last;
|
||
}
|
||
else
|
||
{
|
||
GList *above_node = g_hash_table_lookup (cache->child_hash,
|
||
GUINT_TO_POINTER (xce->above));
|
||
if (above_node && node->next != above_node)
|
||
{
|
||
/* Put the window above (before in the list) above_node */
|
||
cache->children = g_list_remove_link (cache->children, node);
|
||
node->prev = above_node->prev;
|
||
if (node->prev)
|
||
node->prev->next = node;
|
||
else
|
||
cache->children = node;
|
||
node->next = above_node;
|
||
above_node->prev = node;
|
||
}
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
case CreateNotify:
|
||
{
|
||
const XCreateWindowEvent *xcwe = &xevent->xcreatewindow;
|
||
|
||
if (!g_hash_table_lookup (cache->child_hash,
|
||
GUINT_TO_POINTER (xcwe->window)))
|
||
gdk_surface_cache_add (cache, xcwe->window,
|
||
xcwe->x, xcwe->y, xcwe->width, xcwe->height,
|
||
FALSE);
|
||
break;
|
||
}
|
||
case DestroyNotify:
|
||
{
|
||
const XDestroyWindowEvent *xdwe = &xevent->xdestroywindow;
|
||
GList *node;
|
||
|
||
node = g_hash_table_lookup (cache->child_hash,
|
||
GUINT_TO_POINTER (xdwe->window));
|
||
if (node)
|
||
{
|
||
GdkCacheChild *child = node->data;
|
||
|
||
g_hash_table_remove (cache->child_hash,
|
||
GUINT_TO_POINTER (xdwe->window));
|
||
cache->children = g_list_remove_link (cache->children, node);
|
||
/* window is destroyed, no need to disable ShapeNotify */
|
||
free_cache_child (child, NULL);
|
||
g_list_free_1 (node);
|
||
}
|
||
break;
|
||
}
|
||
case MapNotify:
|
||
{
|
||
const XMapEvent *xme = &xevent->xmap;
|
||
GList *node;
|
||
|
||
node = g_hash_table_lookup (cache->child_hash,
|
||
GUINT_TO_POINTER (xme->window));
|
||
if (node)
|
||
{
|
||
GdkCacheChild *child = node->data;
|
||
child->mapped = TRUE;
|
||
}
|
||
break;
|
||
}
|
||
case ReparentNotify:
|
||
break;
|
||
case UnmapNotify:
|
||
{
|
||
const XMapEvent *xume = &xevent->xmap;
|
||
GList *node;
|
||
|
||
node = g_hash_table_lookup (cache->child_hash,
|
||
GUINT_TO_POINTER (xume->window));
|
||
if (node)
|
||
{
|
||
GdkCacheChild *child = node->data;
|
||
child->mapped = FALSE;
|
||
}
|
||
break;
|
||
}
|
||
default:
|
||
return GDK_FILTER_CONTINUE;
|
||
}
|
||
return GDK_FILTER_REMOVE;
|
||
}
|
||
|
||
static GdkSurfaceCache *
|
||
gdk_surface_cache_new (GdkDisplay *display)
|
||
{
|
||
XWindowAttributes xwa;
|
||
GdkX11Screen *screen = GDK_X11_DISPLAY (display)->screen;
|
||
Display *xdisplay = GDK_SCREEN_XDISPLAY (screen);
|
||
Window xroot_window = GDK_DISPLAY_XROOTWIN (display);
|
||
GdkChildInfoX11 *children;
|
||
guint nchildren, i;
|
||
#ifdef HAVE_XCOMPOSITE
|
||
Window cow;
|
||
#endif
|
||
|
||
GdkSurfaceCache *result = g_new (GdkSurfaceCache, 1);
|
||
|
||
result->children = NULL;
|
||
result->child_hash = g_hash_table_new (g_direct_hash, NULL);
|
||
result->display = display;
|
||
result->ref_count = 1;
|
||
|
||
XGetWindowAttributes (xdisplay, xroot_window, &xwa);
|
||
result->old_event_mask = xwa.your_event_mask;
|
||
|
||
if (G_UNLIKELY (!GDK_X11_DISPLAY (display)->trusted_client))
|
||
{
|
||
GList *toplevel_windows, *list;
|
||
GdkSurface *surface;
|
||
GdkSurfaceImplX11 *impl;
|
||
gint x, y, width, height;
|
||
|
||
toplevel_windows = gdk_x11_display_get_toplevel_windows (display);
|
||
for (list = toplevel_windows; list; list = list->next)
|
||
{
|
||
surface = GDK_SURFACE (list->data);
|
||
impl = GDK_SURFACE_IMPL_X11 (surface->impl);
|
||
gdk_surface_get_geometry (surface, &x, &y, &width, &height);
|
||
gdk_surface_cache_add (result, GDK_SURFACE_XID (surface),
|
||
x * impl->surface_scale, y * impl->surface_scale,
|
||
width * impl->surface_scale,
|
||
height * impl->surface_scale,
|
||
gdk_surface_is_visible (surface));
|
||
}
|
||
return result;
|
||
}
|
||
|
||
XSelectInput (xdisplay, xroot_window, result->old_event_mask | SubstructureNotifyMask);
|
||
|
||
if (!_gdk_x11_get_window_child_info (display,
|
||
xroot_window,
|
||
FALSE, NULL,
|
||
&children, &nchildren))
|
||
return result;
|
||
|
||
for (i = 0; i < nchildren ; i++)
|
||
{
|
||
gdk_surface_cache_add (result, children[i].window,
|
||
children[i].x, children[i].y, children[i].width, children[i].height,
|
||
children[i].is_mapped);
|
||
}
|
||
|
||
g_free (children);
|
||
|
||
#ifdef HAVE_XCOMPOSITE
|
||
/*
|
||
* Add the composite overlay window to the cache, as this can be a reasonable
|
||
* Xdnd proxy as well.
|
||
* This is only done when the screen is composited in order to avoid mapping
|
||
* the COW. We assume that the CM is using the COW (which is true for pretty
|
||
* much any CM currently in use).
|
||
*/
|
||
if (gdk_display_is_composited (display))
|
||
{
|
||
cow = XCompositeGetOverlayWindow (xdisplay, xroot_window);
|
||
gdk_surface_cache_add (result, cow, 0, 0,
|
||
WidthOfScreen (GDK_X11_SCREEN (screen)->xscreen) * GDK_X11_SCREEN (screen)->surface_scale,
|
||
HeightOfScreen (GDK_X11_SCREEN (screen)->xscreen) * GDK_X11_SCREEN (screen)->surface_scale,
|
||
TRUE);
|
||
XCompositeReleaseOverlayWindow (xdisplay, xroot_window);
|
||
}
|
||
#endif
|
||
|
||
return result;
|
||
}
|
||
|
||
static void
|
||
gdk_surface_cache_destroy (GdkSurfaceCache *cache)
|
||
{
|
||
XSelectInput (GDK_DISPLAY_XDISPLAY (cache->display),
|
||
GDK_DISPLAY_XROOTWIN (cache->display),
|
||
cache->old_event_mask);
|
||
|
||
gdk_x11_display_error_trap_push (cache->display);
|
||
g_list_foreach (cache->children, (GFunc)free_cache_child, cache->display);
|
||
gdk_x11_display_error_trap_pop_ignored (cache->display);
|
||
|
||
g_list_free (cache->children);
|
||
g_hash_table_destroy (cache->child_hash);
|
||
|
||
g_free (cache);
|
||
}
|
||
|
||
static GdkSurfaceCache *
|
||
gdk_surface_cache_ref (GdkSurfaceCache *cache)
|
||
{
|
||
cache->ref_count += 1;
|
||
|
||
return cache;
|
||
}
|
||
|
||
static void
|
||
gdk_surface_cache_unref (GdkSurfaceCache *cache)
|
||
{
|
||
g_assert (cache->ref_count > 0);
|
||
|
||
cache->ref_count -= 1;
|
||
|
||
if (cache->ref_count == 0)
|
||
{
|
||
window_caches = g_slist_remove (window_caches, cache);
|
||
gdk_surface_cache_destroy (cache);
|
||
}
|
||
}
|
||
|
||
GdkSurfaceCache *
|
||
gdk_surface_cache_get (GdkDisplay *display)
|
||
{
|
||
GSList *list;
|
||
GdkSurfaceCache *cache;
|
||
|
||
for (list = window_caches; list; list = list->next)
|
||
{
|
||
cache = list->data;
|
||
if (cache->display == display)
|
||
return gdk_surface_cache_ref (cache);
|
||
}
|
||
|
||
cache = gdk_surface_cache_new (display);
|
||
|
||
window_caches = g_slist_prepend (window_caches, cache);
|
||
|
||
return cache;
|
||
}
|
||
|
||
static gboolean
|
||
is_pointer_within_shape (GdkDisplay *display,
|
||
GdkCacheChild *child,
|
||
gint x_pos,
|
||
gint y_pos)
|
||
{
|
||
if (!child->shape_selected)
|
||
{
|
||
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
|
||
|
||
XShapeSelectInput (display_x11->xdisplay, child->xid, ShapeNotifyMask);
|
||
child->shape_selected = TRUE;
|
||
}
|
||
if (!child->shape_valid)
|
||
{
|
||
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
|
||
cairo_region_t *input_shape;
|
||
|
||
child->shape = NULL;
|
||
if (gdk_display_supports_shapes (display))
|
||
child->shape = _gdk_x11_xwindow_get_shape (display_x11->xdisplay,
|
||
child->xid, 1, ShapeBounding);
|
||
#ifdef ShapeInput
|
||
input_shape = NULL;
|
||
if (gdk_display_supports_input_shapes (display))
|
||
input_shape = _gdk_x11_xwindow_get_shape (display_x11->xdisplay,
|
||
child->xid, 1, ShapeInput);
|
||
|
||
if (child->shape && input_shape)
|
||
{
|
||
cairo_region_intersect (child->shape, input_shape);
|
||
cairo_region_destroy (input_shape);
|
||
}
|
||
else if (input_shape)
|
||
{
|
||
child->shape = input_shape;
|
||
}
|
||
#endif
|
||
|
||
child->shape_valid = TRUE;
|
||
}
|
||
|
||
return child->shape == NULL ||
|
||
cairo_region_contains_point (child->shape, x_pos, y_pos);
|
||
}
|
||
|
||
static Window
|
||
get_client_window_at_coords_recurse (GdkDisplay *display,
|
||
Window win,
|
||
gboolean is_toplevel,
|
||
gint x,
|
||
gint y)
|
||
{
|
||
GdkChildInfoX11 *children;
|
||
unsigned int nchildren;
|
||
int i;
|
||
gboolean found_child = FALSE;
|
||
GdkChildInfoX11 child = { 0, };
|
||
gboolean has_wm_state = FALSE;
|
||
|
||
if (!_gdk_x11_get_window_child_info (display, win, TRUE,
|
||
is_toplevel? &has_wm_state : NULL,
|
||
&children, &nchildren))
|
||
return None;
|
||
|
||
if (has_wm_state)
|
||
{
|
||
g_free (children);
|
||
|
||
return win;
|
||
}
|
||
|
||
for (i = nchildren - 1; (i >= 0) && !found_child; i--)
|
||
{
|
||
GdkChildInfoX11 *cur_child = &children[i];
|
||
|
||
if ((cur_child->is_mapped) && (cur_child->window_class == InputOutput) &&
|
||
(x >= cur_child->x) && (x < cur_child->x + cur_child->width) &&
|
||
(y >= cur_child->y) && (y < cur_child->y + cur_child->height))
|
||
{
|
||
x -= cur_child->x;
|
||
y -= cur_child->y;
|
||
child = *cur_child;
|
||
found_child = TRUE;
|
||
}
|
||
}
|
||
|
||
g_free (children);
|
||
|
||
if (found_child)
|
||
{
|
||
if (child.has_wm_state)
|
||
return child.window;
|
||
else
|
||
return get_client_window_at_coords_recurse (display, child.window, FALSE, x, y);
|
||
}
|
||
else
|
||
return None;
|
||
}
|
||
|
||
static Window
|
||
get_client_window_at_coords (GdkSurfaceCache *cache,
|
||
Window ignore,
|
||
gint x_root,
|
||
gint y_root)
|
||
{
|
||
GList *tmp_list;
|
||
Window retval = None;
|
||
GdkDisplay *display;
|
||
|
||
display = cache->display;
|
||
|
||
gdk_x11_display_error_trap_push (display);
|
||
|
||
tmp_list = cache->children;
|
||
|
||
while (tmp_list && !retval)
|
||
{
|
||
GdkCacheChild *child = tmp_list->data;
|
||
|
||
if ((child->xid != ignore) && (child->mapped))
|
||
{
|
||
if ((x_root >= child->x) && (x_root < child->x + child->width) &&
|
||
(y_root >= child->y) && (y_root < child->y + child->height))
|
||
{
|
||
if (!is_pointer_within_shape (display, child,
|
||
x_root - child->x,
|
||
y_root - child->y))
|
||
{
|
||
tmp_list = tmp_list->next;
|
||
continue;
|
||
}
|
||
|
||
retval = get_client_window_at_coords_recurse (display,
|
||
child->xid, TRUE,
|
||
x_root - child->x,
|
||
y_root - child->y);
|
||
if (!retval)
|
||
retval = child->xid;
|
||
}
|
||
}
|
||
tmp_list = tmp_list->next;
|
||
}
|
||
|
||
gdk_x11_display_error_trap_pop_ignored (display);
|
||
|
||
if (retval)
|
||
return retval;
|
||
else
|
||
return GDK_DISPLAY_XROOTWIN (display);
|
||
}
|
||
|
||
#ifdef G_ENABLE_DEBUG
|
||
static void
|
||
print_target_list (GdkContentFormats *formats)
|
||
{
|
||
gchar *name = gdk_content_formats_to_string (formats);
|
||
g_message ("DND formats: %s", name);
|
||
g_free (name);
|
||
}
|
||
#endif /* G_ENABLE_DEBUG */
|
||
|
||
/*************************************************************
|
||
***************************** XDND **************************
|
||
*************************************************************/
|
||
|
||
/* Utility functions */
|
||
|
||
static struct {
|
||
const gchar *name;
|
||
GdkDragAction action;
|
||
} xdnd_actions_table[] = {
|
||
{ "XdndActionCopy", GDK_ACTION_COPY },
|
||
{ "XdndActionMove", GDK_ACTION_MOVE },
|
||
{ "XdndActionLink", GDK_ACTION_LINK },
|
||
{ "XdndActionAsk", GDK_ACTION_ASK },
|
||
{ "XdndActionPrivate", GDK_ACTION_COPY },
|
||
};
|
||
|
||
static const gint xdnd_n_actions = G_N_ELEMENTS (xdnd_actions_table);
|
||
|
||
static GdkDragAction
|
||
xdnd_action_from_atom (GdkDisplay *display,
|
||
Atom xatom)
|
||
{
|
||
const char *name;
|
||
gint i;
|
||
|
||
if (xatom == None)
|
||
return 0;
|
||
|
||
name = gdk_x11_get_xatom_name_for_display (display, xatom);
|
||
|
||
for (i = 0; i < xdnd_n_actions; i++)
|
||
if (g_str_equal (name, xdnd_actions_table[i].name))
|
||
return xdnd_actions_table[i].action;
|
||
|
||
return 0;
|
||
}
|
||
|
||
static Atom
|
||
xdnd_action_to_atom (GdkDisplay *display,
|
||
GdkDragAction action)
|
||
{
|
||
gint i;
|
||
|
||
for (i = 0; i < xdnd_n_actions; i++)
|
||
if (action == xdnd_actions_table[i].action)
|
||
return gdk_x11_get_xatom_by_name_for_display (display, xdnd_actions_table[i].name);
|
||
|
||
return None;
|
||
}
|
||
|
||
/* Source side */
|
||
|
||
static gboolean
|
||
xdnd_status_filter (GdkDisplay *display,
|
||
const XEvent *xevent)
|
||
{
|
||
guint32 dest_surface = xevent->xclient.data.l[0];
|
||
guint32 flags = xevent->xclient.data.l[1];
|
||
Atom action = xevent->xclient.data.l[4];
|
||
GdkDragContext *context;
|
||
|
||
context = gdk_drag_context_find (display, xevent->xclient.window, dest_surface);
|
||
|
||
GDK_DISPLAY_NOTE (display, DND,
|
||
g_message ("XdndStatus: dest_surface: %#x action: %ld",
|
||
dest_surface, action));
|
||
|
||
if (context)
|
||
{
|
||
GdkX11DragContext *context_x11 = GDK_X11_DRAG_CONTEXT (context);
|
||
if (context_x11->drag_status == GDK_DRAG_STATUS_MOTION_WAIT)
|
||
context_x11->drag_status = GDK_DRAG_STATUS_DRAG;
|
||
|
||
if (!(action != 0) != !(flags & 1))
|
||
{
|
||
GDK_DISPLAY_NOTE (display, DND,
|
||
g_warning ("Received status event with flags not corresponding to action!"));
|
||
action = 0;
|
||
}
|
||
|
||
context->action = xdnd_action_from_atom (display, action);
|
||
|
||
if (context->action != context_x11->current_action)
|
||
{
|
||
context_x11->current_action = action;
|
||
g_signal_emit_by_name (context, "action-changed", action);
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean
|
||
xdnd_finished_filter (GdkDisplay *display,
|
||
const XEvent *xevent)
|
||
{
|
||
guint32 dest_surface = xevent->xclient.data.l[0];
|
||
GdkDragContext *context;
|
||
GdkX11DragContext *context_x11;
|
||
|
||
context = gdk_drag_context_find (display, xevent->xclient.window, dest_surface);
|
||
|
||
GDK_DISPLAY_NOTE (display, DND,
|
||
g_message ("XdndFinished: dest_surface: %#x", dest_surface));
|
||
|
||
if (context)
|
||
{
|
||
g_object_ref (context);
|
||
|
||
context_x11 = GDK_X11_DRAG_CONTEXT (context);
|
||
if (context_x11->version == 5)
|
||
context_x11->drop_failed = xevent->xclient.data.l[1] == 0;
|
||
|
||
g_signal_emit_by_name (context, "dnd-finished");
|
||
gdk_drag_drop_done (context, !context_x11->drop_failed);
|
||
|
||
g_object_unref (context);
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static void
|
||
xdnd_set_targets (GdkX11DragContext *context_x11)
|
||
{
|
||
GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
|
||
Atom *atomlist;
|
||
const char * const *atoms;
|
||
gsize i, n_atoms;
|
||
GdkDisplay *display = gdk_drag_context_get_display (context);
|
||
|
||
atoms = gdk_content_formats_get_mime_types (gdk_drag_context_get_formats (context), &n_atoms);
|
||
atomlist = g_new (Atom, n_atoms);
|
||
for (i = 0; i < n_atoms; i++)
|
||
atomlist[i] = gdk_x11_get_xatom_by_name_for_display (display, atoms[i]);
|
||
|
||
XChangeProperty (GDK_DISPLAY_XDISPLAY (display),
|
||
GDK_SURFACE_XID (context_x11->ipc_surface),
|
||
gdk_x11_get_xatom_by_name_for_display (display, "XdndTypeList"),
|
||
XA_ATOM, 32, PropModeReplace,
|
||
(guchar *)atomlist, n_atoms);
|
||
|
||
g_free (atomlist);
|
||
|
||
context_x11->xdnd_targets_set = 1;
|
||
}
|
||
|
||
static void
|
||
xdnd_set_actions (GdkX11DragContext *context_x11)
|
||
{
|
||
GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
|
||
Atom *atomlist;
|
||
gint i;
|
||
gint n_atoms;
|
||
guint actions;
|
||
GdkDisplay *display = gdk_drag_context_get_display (context);
|
||
|
||
actions = gdk_drag_context_get_actions (context);
|
||
n_atoms = 0;
|
||
for (i = 0; i < xdnd_n_actions; i++)
|
||
{
|
||
if (actions & xdnd_actions_table[i].action)
|
||
{
|
||
actions &= ~xdnd_actions_table[i].action;
|
||
n_atoms++;
|
||
}
|
||
}
|
||
|
||
atomlist = g_new (Atom, n_atoms);
|
||
|
||
actions = gdk_drag_context_get_actions (context);
|
||
n_atoms = 0;
|
||
for (i = 0; i < xdnd_n_actions; i++)
|
||
{
|
||
if (actions & xdnd_actions_table[i].action)
|
||
{
|
||
actions &= ~xdnd_actions_table[i].action;
|
||
atomlist[n_atoms] = gdk_x11_get_xatom_by_name_for_display (display, xdnd_actions_table[i].name);
|
||
n_atoms++;
|
||
}
|
||
}
|
||
|
||
XChangeProperty (GDK_DISPLAY_XDISPLAY (display),
|
||
GDK_SURFACE_XID (context_x11->ipc_surface),
|
||
gdk_x11_get_xatom_by_name_for_display (display, "XdndActionList"),
|
||
XA_ATOM, 32, PropModeReplace,
|
||
(guchar *)atomlist, n_atoms);
|
||
|
||
g_free (atomlist);
|
||
|
||
context_x11->xdnd_actions = gdk_drag_context_get_actions (context);
|
||
}
|
||
|
||
static void
|
||
send_client_message_async_cb (Window window,
|
||
gboolean success,
|
||
gpointer data)
|
||
{
|
||
GdkDragContext *context = data;
|
||
GDK_DISPLAY_NOTE (gdk_drag_context_get_display (context), DND,
|
||
g_message ("Got async callback for #%lx, success = %d",
|
||
window, success));
|
||
|
||
/* On failure, we immediately continue with the protocol
|
||
* so we don't end up blocking for a timeout
|
||
*/
|
||
if (!success &&
|
||
context->dest_surface &&
|
||
window == GDK_SURFACE_XID (context->dest_surface))
|
||
{
|
||
GdkX11DragContext *context_x11 = data;
|
||
|
||
g_object_unref (context->dest_surface);
|
||
context->dest_surface = NULL;
|
||
context->action = 0;
|
||
if (context->action != context_x11->current_action)
|
||
{
|
||
context_x11->current_action = 0;
|
||
g_signal_emit_by_name (context, "action-changed", 0);
|
||
}
|
||
context_x11->drag_status = GDK_DRAG_STATUS_DRAG;
|
||
}
|
||
|
||
g_object_unref (context);
|
||
}
|
||
|
||
static void
|
||
send_client_message_async (GdkDragContext *context,
|
||
Window window,
|
||
glong event_mask,
|
||
XClientMessageEvent *event_send)
|
||
{
|
||
GdkDisplay *display = gdk_drag_context_get_display (context);
|
||
|
||
g_object_ref (context);
|
||
|
||
_gdk_x11_send_client_message_async (display, window,
|
||
FALSE, event_mask, event_send,
|
||
send_client_message_async_cb, context);
|
||
}
|
||
|
||
static gboolean
|
||
xdnd_send_xevent (GdkX11DragContext *context_x11,
|
||
GdkSurface *surface,
|
||
XEvent *event_send)
|
||
{
|
||
GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
|
||
GdkDisplay *display = gdk_drag_context_get_display (context);
|
||
Window xwindow;
|
||
glong event_mask;
|
||
|
||
g_assert (event_send->xany.type == ClientMessage);
|
||
|
||
/* We short-circuit messages to ourselves */
|
||
if (gdk_surface_get_surface_type (surface) != GDK_SURFACE_FOREIGN)
|
||
{
|
||
gint i;
|
||
|
||
for (i = 0; i < G_N_ELEMENTS (xdnd_filters); i++)
|
||
{
|
||
if (gdk_x11_get_xatom_by_name_for_display (display, xdnd_filters[i].atom_name) ==
|
||
event_send->xclient.message_type)
|
||
{
|
||
(*xdnd_filters[i].func) (surface, event_send);
|
||
|
||
return TRUE;
|
||
}
|
||
}
|
||
}
|
||
|
||
xwindow = GDK_SURFACE_XID (surface);
|
||
|
||
if (_gdk_x11_display_is_root_window (display, xwindow))
|
||
event_mask = ButtonPressMask;
|
||
else
|
||
event_mask = 0;
|
||
|
||
send_client_message_async (context, xwindow, event_mask,
|
||
&event_send->xclient);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static void
|
||
xdnd_send_enter (GdkX11DragContext *context_x11)
|
||
{
|
||
GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
|
||
GdkDisplay *display = gdk_drag_context_get_display (context);
|
||
const char * const *atoms;
|
||
gsize i, n_atoms;
|
||
XEvent xev;
|
||
|
||
xev.xclient.type = ClientMessage;
|
||
xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "XdndEnter");
|
||
xev.xclient.format = 32;
|
||
xev.xclient.window = context_x11->drop_xid
|
||
? context_x11->drop_xid
|
||
: GDK_SURFACE_XID (context->dest_surface);
|
||
xev.xclient.data.l[0] = GDK_SURFACE_XID (context_x11->ipc_surface);
|
||
xev.xclient.data.l[1] = (context_x11->version << 24); /* version */
|
||
xev.xclient.data.l[2] = 0;
|
||
xev.xclient.data.l[3] = 0;
|
||
xev.xclient.data.l[4] = 0;
|
||
|
||
GDK_DISPLAY_NOTE (display, DND,
|
||
g_message ("Sending enter source window %#lx XDND protocol version %d\n",
|
||
GDK_SURFACE_XID (context_x11->ipc_surface), context_x11->version));
|
||
atoms = gdk_content_formats_get_mime_types (gdk_drag_context_get_formats (context), &n_atoms);
|
||
|
||
if (n_atoms > 3)
|
||
{
|
||
if (!context_x11->xdnd_targets_set)
|
||
xdnd_set_targets (context_x11);
|
||
xev.xclient.data.l[1] |= 1;
|
||
}
|
||
else
|
||
{
|
||
for (i = 0; i < n_atoms; i++)
|
||
{
|
||
xev.xclient.data.l[i + 2] = gdk_x11_atom_to_xatom_for_display (display, atoms[i]);
|
||
}
|
||
}
|
||
|
||
if (!xdnd_send_xevent (context_x11, context->dest_surface, &xev))
|
||
{
|
||
GDK_DISPLAY_NOTE (display, DND,
|
||
g_message ("Send event to %lx failed",
|
||
GDK_SURFACE_XID (context->dest_surface)));
|
||
g_object_unref (context->dest_surface);
|
||
context->dest_surface = NULL;
|
||
}
|
||
}
|
||
|
||
static void
|
||
xdnd_send_leave (GdkX11DragContext *context_x11)
|
||
{
|
||
GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
|
||
GdkDisplay *display = gdk_drag_context_get_display (context);
|
||
XEvent xev;
|
||
|
||
xev.xclient.type = ClientMessage;
|
||
xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "XdndLeave");
|
||
xev.xclient.format = 32;
|
||
xev.xclient.window = context_x11->drop_xid
|
||
? context_x11->drop_xid
|
||
: GDK_SURFACE_XID (context->dest_surface);
|
||
xev.xclient.data.l[0] = GDK_SURFACE_XID (context_x11->ipc_surface);
|
||
xev.xclient.data.l[1] = 0;
|
||
xev.xclient.data.l[2] = 0;
|
||
xev.xclient.data.l[3] = 0;
|
||
xev.xclient.data.l[4] = 0;
|
||
|
||
if (!xdnd_send_xevent (context_x11, context->dest_surface, &xev))
|
||
{
|
||
GDK_DISPLAY_NOTE (display, DND,
|
||
g_message ("Send event to %lx failed",
|
||
GDK_SURFACE_XID (context->dest_surface)));
|
||
g_object_unref (context->dest_surface);
|
||
context->dest_surface = NULL;
|
||
}
|
||
}
|
||
|
||
static void
|
||
xdnd_send_drop (GdkX11DragContext *context_x11,
|
||
guint32 time)
|
||
{
|
||
GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
|
||
GdkDisplay *display = gdk_drag_context_get_display (context);
|
||
XEvent xev;
|
||
|
||
xev.xclient.type = ClientMessage;
|
||
xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "XdndDrop");
|
||
xev.xclient.format = 32;
|
||
xev.xclient.window = context_x11->drop_xid
|
||
? context_x11->drop_xid
|
||
: GDK_SURFACE_XID (context->dest_surface);
|
||
xev.xclient.data.l[0] = GDK_SURFACE_XID (context_x11->ipc_surface);
|
||
xev.xclient.data.l[1] = 0;
|
||
xev.xclient.data.l[2] = time;
|
||
xev.xclient.data.l[3] = 0;
|
||
xev.xclient.data.l[4] = 0;
|
||
|
||
if (!xdnd_send_xevent (context_x11, context->dest_surface, &xev))
|
||
{
|
||
GDK_DISPLAY_NOTE (display, DND,
|
||
g_message ("Send event to %lx failed",
|
||
GDK_SURFACE_XID (context->dest_surface)));
|
||
g_object_unref (context->dest_surface);
|
||
context->dest_surface = NULL;
|
||
}
|
||
}
|
||
|
||
static void
|
||
xdnd_send_motion (GdkX11DragContext *context_x11,
|
||
gint x_root,
|
||
gint y_root,
|
||
GdkDragAction action,
|
||
guint32 time)
|
||
{
|
||
GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
|
||
GdkDisplay *display = gdk_drag_context_get_display (context);
|
||
XEvent xev;
|
||
|
||
xev.xclient.type = ClientMessage;
|
||
xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "XdndPosition");
|
||
xev.xclient.format = 32;
|
||
xev.xclient.window = context_x11->drop_xid
|
||
? context_x11->drop_xid
|
||
: GDK_SURFACE_XID (context->dest_surface);
|
||
xev.xclient.data.l[0] = GDK_SURFACE_XID (context_x11->ipc_surface);
|
||
xev.xclient.data.l[1] = 0;
|
||
xev.xclient.data.l[2] = (x_root << 16) | y_root;
|
||
xev.xclient.data.l[3] = time;
|
||
xev.xclient.data.l[4] = xdnd_action_to_atom (display, action);
|
||
|
||
if (!xdnd_send_xevent (context_x11, context->dest_surface, &xev))
|
||
{
|
||
GDK_DISPLAY_NOTE (display, DND,
|
||
g_message ("Send event to %lx failed",
|
||
GDK_SURFACE_XID (context->dest_surface)));
|
||
g_object_unref (context->dest_surface);
|
||
context->dest_surface = NULL;
|
||
}
|
||
context_x11->drag_status = GDK_DRAG_STATUS_MOTION_WAIT;
|
||
}
|
||
|
||
static guint32
|
||
xdnd_check_dest (GdkDisplay *display,
|
||
Window win,
|
||
guint *xdnd_version)
|
||
{
|
||
gboolean retval = FALSE;
|
||
Atom type = None;
|
||
int format;
|
||
unsigned long nitems, after;
|
||
guchar *data;
|
||
Atom *version;
|
||
Window *proxy_data;
|
||
Window proxy;
|
||
Atom xdnd_proxy_atom = gdk_x11_get_xatom_by_name_for_display (display, "XdndProxy");
|
||
Atom xdnd_aware_atom = gdk_x11_get_xatom_by_name_for_display (display, "XdndAware");
|
||
|
||
proxy = None;
|
||
|
||
gdk_x11_display_error_trap_push (display);
|
||
if (XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), win,
|
||
xdnd_proxy_atom, 0,
|
||
1, False, AnyPropertyType,
|
||
&type, &format, &nitems, &after,
|
||
&data) == Success)
|
||
{
|
||
if (type != None)
|
||
{
|
||
proxy_data = (Window *)data;
|
||
|
||
if ((format == 32) && (nitems == 1))
|
||
{
|
||
proxy = *proxy_data;
|
||
}
|
||
else
|
||
{
|
||
GDK_DISPLAY_NOTE (display, DND,
|
||
g_warning ("Invalid XdndProxy property on window %ld", win));
|
||
}
|
||
|
||
XFree (proxy_data);
|
||
}
|
||
|
||
if ((XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), proxy ? proxy : win,
|
||
xdnd_aware_atom, 0,
|
||
1, False, AnyPropertyType,
|
||
&type, &format, &nitems, &after,
|
||
&data) == Success) &&
|
||
type != None)
|
||
{
|
||
version = (Atom *)data;
|
||
|
||
if ((format == 32) && (nitems == 1))
|
||
{
|
||
if (*version >= 3)
|
||
retval = TRUE;
|
||
if (xdnd_version)
|
||
*xdnd_version = *version;
|
||
}
|
||
else
|
||
{
|
||
GDK_DISPLAY_NOTE (display, DND,
|
||
g_warning ("Invalid XdndAware property on window %ld", win));
|
||
}
|
||
|
||
XFree (version);
|
||
}
|
||
}
|
||
|
||
gdk_x11_display_error_trap_pop_ignored (display);
|
||
|
||
return retval ? (proxy ? proxy : win) : None;
|
||
}
|
||
|
||
/* Target side */
|
||
|
||
static void
|
||
xdnd_read_actions (GdkX11DragContext *context_x11)
|
||
{
|
||
GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
|
||
GdkDisplay *display = gdk_drag_context_get_display (context);
|
||
GdkDragAction actions = GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_LINK | GDK_ACTION_ASK;
|
||
Atom type;
|
||
int format;
|
||
gulong nitems, after;
|
||
guchar *data;
|
||
Atom *atoms;
|
||
gint i;
|
||
|
||
context_x11->xdnd_have_actions = FALSE;
|
||
|
||
if (gdk_surface_get_surface_type (context->source_surface) == GDK_SURFACE_FOREIGN)
|
||
{
|
||
/* Get the XdndActionList, if set */
|
||
|
||
gdk_x11_display_error_trap_push (display);
|
||
if (XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display),
|
||
GDK_SURFACE_XID (context->source_surface),
|
||
gdk_x11_get_xatom_by_name_for_display (display, "XdndActionList"),
|
||
0, 65536,
|
||
False, XA_ATOM, &type, &format, &nitems,
|
||
&after, &data) == Success &&
|
||
type == XA_ATOM)
|
||
{
|
||
actions = 0;
|
||
|
||
atoms = (Atom *)data;
|
||
|
||
for (i = 0; i < nitems; i++)
|
||
actions |= xdnd_action_from_atom (display, atoms[i]);
|
||
|
||
context_x11->xdnd_have_actions = TRUE;
|
||
|
||
#ifdef G_ENABLE_DEBUG
|
||
if (GDK_DISPLAY_DEBUG_CHECK (display, DND))
|
||
{
|
||
GString *action_str = g_string_new (NULL);
|
||
GdkDragAction actions = gdk_drag_context_get_actions (context);
|
||
if (actions & GDK_ACTION_MOVE)
|
||
g_string_append(action_str, "MOVE ");
|
||
if (actions & GDK_ACTION_COPY)
|
||
g_string_append(action_str, "COPY ");
|
||
if (actions & GDK_ACTION_LINK)
|
||
g_string_append(action_str, "LINK ");
|
||
if (actions & GDK_ACTION_ASK)
|
||
g_string_append(action_str, "ASK ");
|
||
|
||
g_message("Xdnd actions = %s", action_str->str);
|
||
g_string_free (action_str, TRUE);
|
||
}
|
||
#endif /* G_ENABLE_DEBUG */
|
||
}
|
||
|
||
if (data)
|
||
XFree (data);
|
||
|
||
gdk_x11_display_error_trap_pop_ignored (display);
|
||
}
|
||
else
|
||
{
|
||
/* Local drag
|
||
*/
|
||
GdkDragContext *source_context;
|
||
|
||
source_context = gdk_drag_context_find (display,
|
||
GDK_SURFACE_XID (context->source_surface),
|
||
GDK_SURFACE_XID (context->dest_surface));
|
||
|
||
if (source_context)
|
||
{
|
||
actions = gdk_drag_context_get_actions (source_context);
|
||
context_x11->xdnd_have_actions = TRUE;
|
||
}
|
||
}
|
||
|
||
gdk_drag_context_set_actions (context, actions, gdk_drag_context_get_suggested_action (context));
|
||
}
|
||
|
||
/* We have to make sure that the XdndActionList we keep internally
|
||
* is up to date with the XdndActionList on the source window
|
||
* because we get no notification, because Xdnd wasn’t meant
|
||
* to continually send actions. So we select on PropertyChangeMask
|
||
* and add this filter.
|
||
*/
|
||
static gboolean
|
||
xdnd_source_surface_filter (GdkDisplay *display,
|
||
const XEvent *xevent,
|
||
gpointer data)
|
||
{
|
||
GdkX11DragContext *context_x11 = data;
|
||
|
||
context_x11 = data;
|
||
|
||
if ((xevent->xany.type == PropertyNotify) &&
|
||
(xevent->xany.window == GDK_SURFACE_XID (GDK_DRAG_CONTEXT (context_x11)->source_surface)) &&
|
||
(xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "XdndActionList")))
|
||
{
|
||
xdnd_read_actions (context_x11);
|
||
}
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static void
|
||
xdnd_manage_source_filter (GdkDrop *drop,
|
||
GdkSurface *surface,
|
||
gboolean add_filter)
|
||
{
|
||
if (!GDK_SURFACE_DESTROYED (surface) &&
|
||
gdk_surface_get_surface_type (surface) == GDK_SURFACE_FOREIGN)
|
||
{
|
||
GdkDisplay *display = gdk_drop_get_display (drop);
|
||
|
||
if (add_filter)
|
||
{
|
||
gdk_x11_display_error_trap_push (display);
|
||
gdk_surface_set_events (surface,
|
||
gdk_surface_get_events (surface) |
|
||
GDK_PROPERTY_CHANGE_MASK);
|
||
gdk_x11_display_error_trap_pop_ignored (display);
|
||
|
||
g_signal_connect (display, "xevent", G_CALLBACK (xdnd_source_surface_filter), drop);
|
||
}
|
||
else
|
||
{
|
||
g_signal_handlers_disconnect_by_func (display,
|
||
xdnd_source_surface_filter,
|
||
drop);
|
||
/* Should we remove the GDK_PROPERTY_NOTIFY mask?
|
||
* but we might want it for other reasons. (Like
|
||
* INCR selection transactions).
|
||
*/
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
base_precache_atoms (GdkDisplay *display)
|
||
{
|
||
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
|
||
|
||
if (!display_x11->base_dnd_atoms_precached)
|
||
{
|
||
static const char *const precache_atoms[] = {
|
||
"WM_STATE",
|
||
"XdndAware",
|
||
"XdndProxy"
|
||
};
|
||
|
||
_gdk_x11_precache_atoms (display,
|
||
precache_atoms, G_N_ELEMENTS (precache_atoms));
|
||
|
||
display_x11->base_dnd_atoms_precached = TRUE;
|
||
}
|
||
}
|
||
|
||
static void
|
||
xdnd_precache_atoms (GdkDisplay *display)
|
||
{
|
||
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
|
||
|
||
if (!display_x11->xdnd_atoms_precached)
|
||
{
|
||
static const gchar *const precache_atoms[] = {
|
||
"XdndActionAsk",
|
||
"XdndActionCopy",
|
||
"XdndActionLink",
|
||
"XdndActionList",
|
||
"XdndActionMove",
|
||
"XdndActionPrivate",
|
||
"XdndDrop",
|
||
"XdndEnter",
|
||
"XdndFinished",
|
||
"XdndLeave",
|
||
"XdndPosition",
|
||
"XdndSelection",
|
||
"XdndStatus",
|
||
"XdndTypeList"
|
||
};
|
||
|
||
_gdk_x11_precache_atoms (display,
|
||
precache_atoms, G_N_ELEMENTS (precache_atoms));
|
||
|
||
display_x11->xdnd_atoms_precached = TRUE;
|
||
}
|
||
}
|
||
|
||
static gboolean
|
||
xdnd_enter_filter (GdkSurface *surface,
|
||
const XEvent *xevent)
|
||
{
|
||
GdkDisplay *display;
|
||
GdkX11Display *display_x11;
|
||
GdkDrop *drop;
|
||
GdkX11DragContext *context_x11;
|
||
GdkDragContext *drag;
|
||
GdkSeat *seat;
|
||
gint i;
|
||
Atom type;
|
||
int format;
|
||
gulong nitems, after;
|
||
guchar *data;
|
||
Atom *atoms;
|
||
GdkContentFormats *content_formats;
|
||
GPtrArray *formats;
|
||
guint32 source_surface;
|
||
gboolean get_types;
|
||
gint version;
|
||
|
||
source_surface = xevent->xclient.data.l[0];
|
||
get_types = ((xevent->xclient.data.l[1] & 1) != 0);
|
||
version = (xevent->xclient.data.l[1] & 0xff000000) >> 24;
|
||
|
||
display = gdk_surface_get_display (surface);
|
||
display_x11 = GDK_X11_DISPLAY (display);
|
||
|
||
xdnd_precache_atoms (display);
|
||
|
||
GDK_DISPLAY_NOTE (display, DND,
|
||
g_message ("XdndEnter: source_surface: %#x, version: %#x",
|
||
source_surface, version));
|
||
|
||
if (version < 3)
|
||
{
|
||
/* Old source ignore */
|
||
GDK_DISPLAY_NOTE (display, DND, g_message ("Ignored old XdndEnter message"));
|
||
return TRUE;
|
||
}
|
||
|
||
g_clear_object (&display_x11->current_drop);
|
||
|
||
seat = gdk_display_get_default_seat (display);
|
||
|
||
formats = g_ptr_array_new ();
|
||
if (get_types)
|
||
{
|
||
gdk_x11_display_error_trap_push (display);
|
||
XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display),
|
||
source_surface,
|
||
gdk_x11_get_xatom_by_name_for_display (display, "XdndTypeList"),
|
||
0, 65536,
|
||
False, XA_ATOM, &type, &format, &nitems,
|
||
&after, &data);
|
||
|
||
if (gdk_x11_display_error_trap_pop (display) || (format != 32) || (type != XA_ATOM))
|
||
{
|
||
if (data)
|
||
XFree (data);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
atoms = (Atom *)data;
|
||
for (i = 0; i < nitems; i++)
|
||
g_ptr_array_add (formats,
|
||
(gpointer) gdk_x11_get_xatom_name_for_display (display, atoms[i]));
|
||
|
||
XFree (atoms);
|
||
}
|
||
else
|
||
{
|
||
for (i = 0; i < 3; i++)
|
||
if (xevent->xclient.data.l[2 + i])
|
||
g_ptr_array_add (formats,
|
||
(gpointer) gdk_x11_get_xatom_name_for_display (display,
|
||
xevent->xclient.data.l[2 + i]));
|
||
}
|
||
content_formats = gdk_content_formats_new ((const char **) formats->pdata, formats->len);
|
||
g_ptr_array_unref (formats);
|
||
|
||
#ifdef G_ENABLE_DEBUG
|
||
if (GDK_DISPLAY_DEBUG_CHECK (display, DND))
|
||
print_target_list (content_formats);
|
||
#endif /* G_ENABLE_DEBUG */
|
||
|
||
drag = gdk_drag_context_find (display, source_surface, GDK_SURFACE_XID (surface));
|
||
|
||
context_x11 = g_object_new (GDK_TYPE_X11_DRAG_CONTEXT,
|
||
"device", gdk_seat_get_pointer (seat),
|
||
"drag", drag,
|
||
"formats", content_formats,
|
||
"surface", surface,
|
||
NULL);
|
||
drop = GDK_DROP (context_x11);
|
||
|
||
context_x11->protocol = GDK_DRAG_PROTO_XDND;
|
||
context_x11->version = version;
|
||
|
||
/* FIXME: Should extend DnD protocol to have device info */
|
||
|
||
GDK_DRAG_CONTEXT (drop)->source_surface = gdk_x11_surface_foreign_new_for_display (display, source_surface);
|
||
if (!GDK_DRAG_CONTEXT (drop)->source_surface)
|
||
{
|
||
g_object_unref (drop);
|
||
return TRUE;
|
||
}
|
||
GDK_DRAG_CONTEXT (drop)->dest_surface = surface;
|
||
g_object_ref (GDK_DRAG_CONTEXT (drop)->dest_surface);
|
||
xdnd_manage_source_filter (drop, GDK_DRAG_CONTEXT (drop)->source_surface, TRUE);
|
||
xdnd_read_actions (context_x11);
|
||
|
||
display_x11->current_drop = drop;
|
||
|
||
gdk_drop_emit_enter_event (drop, FALSE, GDK_CURRENT_TIME);
|
||
|
||
gdk_content_formats_unref (content_formats);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean
|
||
xdnd_leave_filter (GdkSurface *surface,
|
||
const XEvent *xevent)
|
||
{
|
||
guint32 source_surface = xevent->xclient.data.l[0];
|
||
GdkDisplay *display;
|
||
GdkX11Display *display_x11;
|
||
|
||
display = gdk_surface_get_display (surface);
|
||
display_x11 = GDK_X11_DISPLAY (display);
|
||
|
||
GDK_DISPLAY_NOTE (display, DND,
|
||
g_message ("XdndLeave: source_surface: %#x",
|
||
source_surface));
|
||
|
||
xdnd_precache_atoms (display);
|
||
|
||
if ((display_x11->current_drop != NULL) &&
|
||
(GDK_SURFACE_XID (GDK_DRAG_CONTEXT (display_x11->current_drop)->source_surface) == source_surface))
|
||
{
|
||
gdk_drop_emit_leave_event (display_x11->current_drop, FALSE, GDK_CURRENT_TIME);
|
||
|
||
g_clear_object (&display_x11->current_drop);
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean
|
||
xdnd_position_filter (GdkSurface *surface,
|
||
const XEvent *xevent)
|
||
{
|
||
GdkSurfaceImplX11 *impl;
|
||
guint32 source_surface = xevent->xclient.data.l[0];
|
||
gint16 x_root = xevent->xclient.data.l[2] >> 16;
|
||
gint16 y_root = xevent->xclient.data.l[2] & 0xffff;
|
||
guint32 time = xevent->xclient.data.l[3];
|
||
Atom action = xevent->xclient.data.l[4];
|
||
GdkDisplay *display;
|
||
GdkX11Display *display_x11;
|
||
GdkDragContext *context;
|
||
GdkX11DragContext *context_x11;
|
||
GdkDragAction suggested_action;
|
||
|
||
display = gdk_surface_get_display (surface);
|
||
display_x11 = GDK_X11_DISPLAY (display);
|
||
|
||
GDK_DISPLAY_NOTE (display, DND,
|
||
g_message ("XdndPosition: source_surface: %#x position: (%d, %d) time: %d action: %ld",
|
||
source_surface, x_root, y_root, time, action));
|
||
|
||
xdnd_precache_atoms (display);
|
||
|
||
context = GDK_DRAG_CONTEXT (display_x11->current_drop);
|
||
|
||
if ((context != NULL) &&
|
||
(GDK_SURFACE_XID (context->source_surface) == source_surface))
|
||
{
|
||
impl = GDK_SURFACE_IMPL_X11 (gdk_drop_get_surface (GDK_DROP (context))->impl);
|
||
|
||
context_x11 = GDK_X11_DRAG_CONTEXT (context);
|
||
|
||
suggested_action = xdnd_action_from_atom (display, action);
|
||
if (context_x11->xdnd_have_actions)
|
||
gdk_drag_context_set_actions (context,
|
||
gdk_drag_context_get_actions (context),
|
||
suggested_action);
|
||
else
|
||
gdk_drag_context_set_actions (context,
|
||
suggested_action,
|
||
suggested_action);
|
||
|
||
context_x11->last_x = x_root / impl->surface_scale;
|
||
context_x11->last_y = y_root / impl->surface_scale;
|
||
|
||
gdk_drop_emit_motion_event (GDK_DROP (context), FALSE, context_x11->last_x, context_x11->last_y, time);
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean
|
||
xdnd_drop_filter (GdkSurface *surface,
|
||
const XEvent *xevent)
|
||
{
|
||
guint32 source_surface = xevent->xclient.data.l[0];
|
||
guint32 time = xevent->xclient.data.l[2];
|
||
GdkDisplay *display;
|
||
GdkX11Display *display_x11;
|
||
GdkDragContext *context;
|
||
GdkX11DragContext *context_x11;
|
||
|
||
display = gdk_surface_get_display (surface);
|
||
display_x11 = GDK_X11_DISPLAY (display);
|
||
|
||
GDK_DISPLAY_NOTE (display, DND,
|
||
g_message ("XdndDrop: source_surface: %#x time: %d",
|
||
source_surface, time));
|
||
|
||
xdnd_precache_atoms (display);
|
||
|
||
context = GDK_DRAG_CONTEXT (display_x11->current_drop);
|
||
|
||
if ((context != NULL) &&
|
||
(GDK_SURFACE_XID (context->source_surface) == source_surface))
|
||
{
|
||
context_x11 = GDK_X11_DRAG_CONTEXT (context);
|
||
|
||
gdk_x11_surface_set_user_time (gdk_drop_get_surface (GDK_DROP (context)), time);
|
||
|
||
gdk_drop_emit_drop_event (GDK_DROP (context), FALSE, context_x11->last_x, context_x11->last_y, time);
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
GdkFilterReturn
|
||
_gdk_x11_dnd_filter (const XEvent *xevent,
|
||
GdkEvent *event,
|
||
gpointer data)
|
||
{
|
||
GdkDisplay *display;
|
||
int i;
|
||
|
||
if (!GDK_IS_X11_SURFACE (event->any.surface))
|
||
return GDK_FILTER_CONTINUE;
|
||
|
||
if (xevent->type != ClientMessage)
|
||
return GDK_FILTER_CONTINUE;
|
||
|
||
if (!event->any.surface ||
|
||
gdk_surface_get_surface_type (event->any.surface) == GDK_SURFACE_FOREIGN)
|
||
return GDK_FILTER_CONTINUE; /* Not for us */
|
||
|
||
display = GDK_SURFACE_DISPLAY (event->any.surface);
|
||
|
||
for (i = 0; i < G_N_ELEMENTS (xdnd_filters); i++)
|
||
{
|
||
if (xevent->xclient.message_type != gdk_x11_get_xatom_by_name_for_display (display, xdnd_filters[i].atom_name))
|
||
continue;
|
||
|
||
if (xdnd_filters[i].func (event->any.surface, xevent))
|
||
return GDK_FILTER_REMOVE;
|
||
else
|
||
return GDK_FILTER_CONTINUE;
|
||
}
|
||
|
||
return GDK_FILTER_CONTINUE;
|
||
}
|
||
|
||
/* Source side */
|
||
|
||
static void
|
||
gdk_drag_do_leave (GdkX11DragContext *context_x11,
|
||
guint32 time)
|
||
{
|
||
GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
|
||
|
||
if (context->dest_surface)
|
||
{
|
||
switch (context_x11->protocol)
|
||
{
|
||
case GDK_DRAG_PROTO_XDND:
|
||
xdnd_send_leave (context_x11);
|
||
break;
|
||
case GDK_DRAG_PROTO_ROOTWIN:
|
||
case GDK_DRAG_PROTO_NONE:
|
||
default:
|
||
break;
|
||
}
|
||
|
||
g_object_unref (context->dest_surface);
|
||
context->dest_surface = NULL;
|
||
}
|
||
}
|
||
|
||
static GdkSurface *
|
||
create_drag_surface (GdkDisplay *display)
|
||
{
|
||
GdkSurface *surface;
|
||
|
||
surface = gdk_surface_new_popup (display, &(GdkRectangle) { 0, 0, 100, 100 });
|
||
|
||
gdk_surface_set_type_hint (surface, GDK_SURFACE_TYPE_HINT_DND);
|
||
|
||
return surface;
|
||
}
|
||
|
||
static Window
|
||
_gdk_x11_display_get_drag_protocol (GdkDisplay *display,
|
||
Window xid,
|
||
GdkDragProtocol *protocol,
|
||
guint *version)
|
||
|
||
{
|
||
GdkSurface *surface;
|
||
Window retval;
|
||
|
||
base_precache_atoms (display);
|
||
|
||
/* Check for a local drag */
|
||
surface = gdk_x11_surface_lookup_for_display (display, xid);
|
||
if (surface && gdk_surface_get_surface_type (surface) != GDK_SURFACE_FOREIGN)
|
||
{
|
||
if (g_object_get_data (G_OBJECT (surface), "gdk-dnd-registered") != NULL)
|
||
{
|
||
*protocol = GDK_DRAG_PROTO_XDND;
|
||
*version = 5;
|
||
xdnd_precache_atoms (display);
|
||
GDK_DISPLAY_NOTE (display, DND, g_message ("Entering local Xdnd window %#x\n", (guint) xid));
|
||
return xid;
|
||
}
|
||
else if (_gdk_x11_display_is_root_window (display, xid))
|
||
{
|
||
*protocol = GDK_DRAG_PROTO_ROOTWIN;
|
||
GDK_DISPLAY_NOTE (display, DND, g_message ("Entering root window\n"));
|
||
return xid;
|
||
}
|
||
}
|
||
else if ((retval = xdnd_check_dest (display, xid, version)))
|
||
{
|
||
*protocol = GDK_DRAG_PROTO_XDND;
|
||
xdnd_precache_atoms (display);
|
||
GDK_DISPLAY_NOTE (display, DND, g_message ("Entering Xdnd window %#x\n", (guint) xid));
|
||
return retval;
|
||
}
|
||
else
|
||
{
|
||
/* Check if this is a root window */
|
||
gboolean rootwin = FALSE;
|
||
|
||
if (_gdk_x11_display_is_root_window (display, (Window) xid))
|
||
rootwin = TRUE;
|
||
|
||
if (rootwin)
|
||
{
|
||
GDK_DISPLAY_NOTE (display, DND, g_message ("Entering root window\n"));
|
||
*protocol = GDK_DRAG_PROTO_ROOTWIN;
|
||
return xid;
|
||
}
|
||
}
|
||
|
||
*protocol = GDK_DRAG_PROTO_NONE;
|
||
|
||
return 0; /* a.k.a. None */
|
||
}
|
||
|
||
static GdkSurfaceCache *
|
||
drag_context_find_window_cache (GdkX11DragContext *context_x11,
|
||
GdkDisplay *display)
|
||
{
|
||
if (!context_x11->cache)
|
||
context_x11->cache = gdk_surface_cache_get (display);
|
||
|
||
return context_x11->cache;
|
||
}
|
||
|
||
static GdkSurface *
|
||
gdk_x11_drag_context_find_surface (GdkDragContext *context,
|
||
GdkSurface *drag_surface,
|
||
gint x_root,
|
||
gint y_root,
|
||
GdkDragProtocol *protocol)
|
||
{
|
||
GdkX11Screen *screen_x11;
|
||
GdkX11DragContext *context_x11 = GDK_X11_DRAG_CONTEXT (context);
|
||
GdkSurfaceCache *window_cache;
|
||
GdkDisplay *display;
|
||
Window dest;
|
||
GdkSurface *dest_surface;
|
||
|
||
display = gdk_drag_context_get_display (context);
|
||
screen_x11 = GDK_X11_SCREEN(GDK_X11_DISPLAY (display)->screen);
|
||
|
||
window_cache = drag_context_find_window_cache (context_x11, display);
|
||
|
||
dest = get_client_window_at_coords (window_cache,
|
||
drag_surface && GDK_SURFACE_IS_X11 (drag_surface) ?
|
||
GDK_SURFACE_XID (drag_surface) : None,
|
||
x_root * screen_x11->surface_scale,
|
||
y_root * screen_x11->surface_scale);
|
||
|
||
if (context_x11->dest_xid != dest)
|
||
{
|
||
Window recipient;
|
||
context_x11->dest_xid = dest;
|
||
|
||
/* Check if new destination accepts drags, and which protocol */
|
||
|
||
/* There is some ugliness here. We actually need to pass
|
||
* _three_ pieces of information to drag_motion - dest_surface,
|
||
* protocol, and the XID of the unproxied window. The first
|
||
* two are passed explicitly, the third implicitly through
|
||
* protocol->dest_xid.
|
||
*/
|
||
recipient = _gdk_x11_display_get_drag_protocol (display,
|
||
dest,
|
||
protocol,
|
||
&context_x11->version);
|
||
|
||
if (recipient != None)
|
||
dest_surface = gdk_x11_surface_foreign_new_for_display (display, recipient);
|
||
else
|
||
dest_surface = NULL;
|
||
}
|
||
else
|
||
{
|
||
dest_surface = context->dest_surface;
|
||
if (dest_surface)
|
||
g_object_ref (dest_surface);
|
||
*protocol = context_x11->protocol;
|
||
}
|
||
|
||
return dest_surface;
|
||
}
|
||
|
||
static void
|
||
move_drag_surface (GdkDragContext *context,
|
||
guint x_root,
|
||
guint y_root)
|
||
{
|
||
GdkX11DragContext *context_x11 = GDK_X11_DRAG_CONTEXT (context);
|
||
|
||
gdk_surface_move (context_x11->drag_surface,
|
||
x_root - context_x11->hot_x,
|
||
y_root - context_x11->hot_y);
|
||
gdk_surface_raise (context_x11->drag_surface);
|
||
}
|
||
|
||
static gboolean
|
||
gdk_x11_drag_context_drag_motion (GdkDragContext *context,
|
||
GdkSurface *dest_surface,
|
||
GdkDragProtocol protocol,
|
||
gint x_root,
|
||
gint y_root,
|
||
GdkDragAction suggested_action,
|
||
GdkDragAction possible_actions,
|
||
guint32 time)
|
||
{
|
||
GdkX11DragContext *context_x11 = GDK_X11_DRAG_CONTEXT (context);
|
||
GdkSurfaceImplX11 *impl;
|
||
|
||
if (context_x11->drag_surface)
|
||
move_drag_surface (context, x_root, y_root);
|
||
|
||
gdk_drag_context_set_actions (context, possible_actions, suggested_action);
|
||
|
||
if (protocol == GDK_DRAG_PROTO_XDND && context_x11->version == 0)
|
||
{
|
||
/* This ugly hack is necessary since GTK+ doesn't know about
|
||
* the XDND protocol version, and in particular doesn't know
|
||
* that gdk_drag_find_window() has the side-effect
|
||
* of setting context_x11->version, and therefore sometimes call
|
||
* gdk_x11_drag_context_drag_motion() without a prior call to
|
||
* gdk_drag_find_window(). This happens, e.g.
|
||
* when GTK+ is proxying DND events to embedded windows.
|
||
*/
|
||
if (dest_surface)
|
||
{
|
||
GdkDisplay *display = GDK_SURFACE_DISPLAY (dest_surface);
|
||
|
||
xdnd_check_dest (display,
|
||
GDK_SURFACE_XID (dest_surface),
|
||
&context_x11->version);
|
||
}
|
||
}
|
||
|
||
/* When we have a Xdnd target, make sure our XdndActionList
|
||
* matches the current actions;
|
||
*/
|
||
if (protocol == GDK_DRAG_PROTO_XDND && context_x11->xdnd_actions != gdk_drag_context_get_actions (context))
|
||
{
|
||
if (dest_surface)
|
||
{
|
||
if (gdk_surface_get_surface_type (dest_surface) == GDK_SURFACE_FOREIGN)
|
||
xdnd_set_actions (context_x11);
|
||
else if (context->dest_surface == dest_surface)
|
||
{
|
||
GdkDisplay *display = GDK_SURFACE_DISPLAY (dest_surface);
|
||
GdkDragContext *dest_context;
|
||
|
||
dest_context = GDK_DRAG_CONTEXT (GDK_X11_DISPLAY (display)->current_drop);
|
||
|
||
if (dest_context &&
|
||
dest_context->dest_surface == dest_surface)
|
||
{
|
||
gdk_drag_context_set_actions (dest_context, possible_actions, suggested_action);
|
||
GDK_X11_DRAG_CONTEXT (dest_context)->xdnd_have_actions = TRUE;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
if (context->dest_surface != dest_surface)
|
||
{
|
||
/* Send a leave to the last destination */
|
||
gdk_drag_do_leave (context_x11, time);
|
||
context_x11->drag_status = GDK_DRAG_STATUS_DRAG;
|
||
|
||
/* Check if new destination accepts drags, and which protocol */
|
||
|
||
if (dest_surface)
|
||
{
|
||
context->dest_surface = dest_surface;
|
||
context_x11->drop_xid = context_x11->dest_xid;
|
||
g_object_ref (context->dest_surface);
|
||
context_x11->protocol = protocol;
|
||
|
||
switch (protocol)
|
||
{
|
||
case GDK_DRAG_PROTO_XDND:
|
||
xdnd_send_enter (context_x11);
|
||
break;
|
||
|
||
case GDK_DRAG_PROTO_ROOTWIN:
|
||
case GDK_DRAG_PROTO_NONE:
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
context->dest_surface = NULL;
|
||
context_x11->drop_xid = None;
|
||
context->action = 0;
|
||
}
|
||
|
||
/* Push a status event, to let the client know that
|
||
* the drag changed
|
||
*/
|
||
if (context->action != context_x11->current_action)
|
||
{
|
||
context_x11->current_action = context->action;
|
||
g_signal_emit_by_name (context, "action-changed", context->action);
|
||
}
|
||
}
|
||
|
||
/* Send a drag-motion event */
|
||
|
||
context_x11->last_x = x_root;
|
||
context_x11->last_y = y_root;
|
||
|
||
if (context->dest_surface)
|
||
{
|
||
impl = GDK_SURFACE_IMPL_X11 (context->dest_surface->impl);
|
||
|
||
if (context_x11->drag_status == GDK_DRAG_STATUS_DRAG)
|
||
{
|
||
switch (context_x11->protocol)
|
||
{
|
||
case GDK_DRAG_PROTO_XDND:
|
||
xdnd_send_motion (context_x11, x_root * impl->surface_scale, y_root * impl->surface_scale, suggested_action, time);
|
||
break;
|
||
|
||
case GDK_DRAG_PROTO_ROOTWIN:
|
||
{
|
||
GdkContentFormats *formats = gdk_drag_context_get_formats (context);
|
||
/* GTK+ traditionally has used application/x-rootwin-drop,
|
||
* but the XDND spec specifies x-rootwindow-drop.
|
||
*/
|
||
if (gdk_content_formats_contain_mime_type (formats, "application/x-rootwindow-drop") ||
|
||
gdk_content_formats_contain_mime_type (formats, "application/x-rootwin-drop"))
|
||
context->action = gdk_drag_context_get_suggested_action (context);
|
||
else
|
||
context->action = 0;
|
||
|
||
if (context->action != context_x11->current_action)
|
||
{
|
||
context_x11->current_action = context->action;
|
||
g_signal_emit_by_name (context, "action-changed", context->action);
|
||
}
|
||
}
|
||
break;
|
||
case GDK_DRAG_PROTO_NONE:
|
||
g_warning ("Invalid drag protocol %u in gdk_x11_drag_context_drag_motion()", context_x11->protocol);
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
else
|
||
return TRUE;
|
||
}
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static void
|
||
gdk_x11_drag_context_drag_abort (GdkDragContext *context,
|
||
guint32 time)
|
||
{
|
||
gdk_drag_do_leave (GDK_X11_DRAG_CONTEXT (context), time);
|
||
}
|
||
|
||
static void
|
||
gdk_x11_drag_context_drag_drop (GdkDragContext *context,
|
||
guint32 time)
|
||
{
|
||
GdkX11DragContext *context_x11 = GDK_X11_DRAG_CONTEXT (context);
|
||
|
||
if (context->dest_surface)
|
||
{
|
||
switch (context_x11->protocol)
|
||
{
|
||
case GDK_DRAG_PROTO_XDND:
|
||
xdnd_send_drop (context_x11, time);
|
||
break;
|
||
|
||
case GDK_DRAG_PROTO_ROOTWIN:
|
||
g_warning ("Drops for GDK_DRAG_PROTO_ROOTWIN must be handled internally");
|
||
break;
|
||
case GDK_DRAG_PROTO_NONE:
|
||
g_warning ("GDK_DRAG_PROTO_NONE is not valid in gdk_drag_drop()");
|
||
break;
|
||
default:
|
||
g_warning ("Drag protocol %u is not valid in gdk_drag_drop()", context_x11->protocol);
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
/* Destination side */
|
||
|
||
static void
|
||
gdk_x11_drop_do_nothing (Window window,
|
||
gboolean success,
|
||
gpointer data)
|
||
{
|
||
GdkDisplay *display = data;
|
||
|
||
if (!success)
|
||
{
|
||
GDK_DISPLAY_NOTE (display, DND,
|
||
g_message ("Send event to %lx failed",
|
||
window));
|
||
}
|
||
}
|
||
|
||
static void
|
||
gdk_x11_drag_context_status (GdkDrop *drop,
|
||
GdkDragAction actions)
|
||
{
|
||
GdkDragContext *context = GDK_DRAG_CONTEXT (drop);
|
||
GdkDragAction possible_actions;
|
||
XEvent xev;
|
||
GdkDisplay *display;
|
||
|
||
display = gdk_drag_context_get_display (context);
|
||
|
||
context->action = actions;
|
||
possible_actions = actions & gdk_drop_get_actions (drop);
|
||
|
||
xev.xclient.type = ClientMessage;
|
||
xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "XdndStatus");
|
||
xev.xclient.format = 32;
|
||
xev.xclient.window = GDK_SURFACE_XID (context->source_surface);
|
||
|
||
xev.xclient.data.l[0] = GDK_SURFACE_XID (context->dest_surface);
|
||
xev.xclient.data.l[1] = (possible_actions != 0) ? (2 | 1) : 0;
|
||
xev.xclient.data.l[2] = 0;
|
||
xev.xclient.data.l[3] = 0;
|
||
xev.xclient.data.l[4] = xdnd_action_to_atom (display, possible_actions);
|
||
|
||
if (gdk_drop_get_drag (drop))
|
||
{
|
||
xdnd_status_filter (display, &xev);
|
||
}
|
||
else
|
||
{
|
||
_gdk_x11_send_client_message_async (display,
|
||
GDK_SURFACE_XID (context->source_surface),
|
||
FALSE, 0,
|
||
&xev.xclient,
|
||
gdk_x11_drop_do_nothing,
|
||
display);
|
||
}
|
||
}
|
||
|
||
static void
|
||
gdk_x11_drag_context_finish (GdkDrop *drop,
|
||
GdkDragAction action)
|
||
{
|
||
if (GDK_X11_DRAG_CONTEXT (drop)->protocol == GDK_DRAG_PROTO_XDND)
|
||
{
|
||
GdkDragContext *context = GDK_DRAG_CONTEXT (drop);
|
||
GdkDisplay *display = gdk_drop_get_display (drop);
|
||
XEvent xev;
|
||
|
||
if (action == GDK_ACTION_MOVE)
|
||
{
|
||
XConvertSelection (GDK_DISPLAY_XDISPLAY (display),
|
||
gdk_x11_get_xatom_by_name_for_display (display, "XdndSelection"),
|
||
gdk_x11_get_xatom_by_name_for_display (display, "DELETE"),
|
||
gdk_x11_get_xatom_by_name_for_display (display, "GDK_SELECTION"),
|
||
GDK_SURFACE_XID (context->source_surface),
|
||
GDK_X11_DRAG_CONTEXT (drop)->timestamp);
|
||
/* XXX: Do we need to wait for a reply here before sending the next message? */
|
||
}
|
||
|
||
xev.xclient.type = ClientMessage;
|
||
xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "XdndFinished");
|
||
xev.xclient.format = 32;
|
||
xev.xclient.window = GDK_SURFACE_XID (context->source_surface);
|
||
|
||
xev.xclient.data.l[0] = GDK_SURFACE_XID (context->dest_surface);
|
||
if (action != 0)
|
||
{
|
||
xev.xclient.data.l[1] = 1;
|
||
xev.xclient.data.l[2] = xdnd_action_to_atom (display, action);
|
||
}
|
||
else
|
||
{
|
||
xev.xclient.data.l[1] = 0;
|
||
xev.xclient.data.l[2] = None;
|
||
}
|
||
xev.xclient.data.l[3] = 0;
|
||
xev.xclient.data.l[4] = 0;
|
||
|
||
if (gdk_drop_get_drag (drop))
|
||
{
|
||
xdnd_finished_filter (display, &xev);
|
||
}
|
||
else
|
||
{
|
||
_gdk_x11_send_client_message_async (display,
|
||
GDK_SURFACE_XID (context->source_surface),
|
||
FALSE, 0,
|
||
&xev.xclient,
|
||
gdk_x11_drop_do_nothing,
|
||
display);
|
||
}
|
||
}
|
||
}
|
||
|
||
void
|
||
_gdk_x11_surface_register_dnd (GdkSurface *surface)
|
||
{
|
||
static const gulong xdnd_version = 5;
|
||
GdkDisplay *display = gdk_surface_get_display (surface);
|
||
|
||
g_return_if_fail (surface != NULL);
|
||
|
||
base_precache_atoms (display);
|
||
|
||
if (g_object_get_data (G_OBJECT (surface), "gdk-dnd-registered") != NULL)
|
||
return;
|
||
else
|
||
g_object_set_data (G_OBJECT (surface), "gdk-dnd-registered", GINT_TO_POINTER (TRUE));
|
||
|
||
/* Set XdndAware */
|
||
|
||
/* The property needs to be of type XA_ATOM, not XA_INTEGER. Blech */
|
||
XChangeProperty (GDK_DISPLAY_XDISPLAY (display),
|
||
GDK_SURFACE_XID (surface),
|
||
gdk_x11_get_xatom_by_name_for_display (display, "XdndAware"),
|
||
XA_ATOM, 32, PropModeReplace,
|
||
(guchar *)&xdnd_version, 1);
|
||
}
|
||
|
||
static GdkSurface *
|
||
gdk_x11_drag_context_get_drag_surface (GdkDragContext *context)
|
||
{
|
||
return GDK_X11_DRAG_CONTEXT (context)->drag_surface;
|
||
}
|
||
|
||
static void
|
||
gdk_x11_drag_context_set_hotspot (GdkDragContext *context,
|
||
gint hot_x,
|
||
gint hot_y)
|
||
{
|
||
GdkX11DragContext *x11_context = GDK_X11_DRAG_CONTEXT (context);
|
||
|
||
x11_context->hot_x = hot_x;
|
||
x11_context->hot_y = hot_y;
|
||
|
||
if (x11_context->grab_seat)
|
||
{
|
||
/* DnD is managed, update current position */
|
||
move_drag_surface (context, x11_context->last_x, x11_context->last_y);
|
||
}
|
||
}
|
||
|
||
static void
|
||
gdk_x11_drag_context_default_output_done (GObject *context,
|
||
GAsyncResult *result,
|
||
gpointer user_data)
|
||
{
|
||
GError *error = NULL;
|
||
|
||
if (!gdk_drag_context_write_finish (GDK_DRAG_CONTEXT (context), result, &error))
|
||
{
|
||
GDK_DISPLAY_NOTE (gdk_drag_context_get_display (GDK_DRAG_CONTEXT (context)), DND, g_printerr ("failed to write stream: %s\n", error->message));
|
||
g_error_free (error);
|
||
}
|
||
}
|
||
|
||
static void
|
||
gdk_x11_drag_context_default_output_handler (GOutputStream *stream,
|
||
const char *mime_type,
|
||
gpointer user_data)
|
||
{
|
||
gdk_drag_context_write_async (GDK_DRAG_CONTEXT (user_data),
|
||
mime_type,
|
||
stream,
|
||
G_PRIORITY_DEFAULT,
|
||
NULL,
|
||
gdk_x11_drag_context_default_output_done,
|
||
NULL);
|
||
g_object_unref (stream);
|
||
}
|
||
|
||
static gboolean
|
||
gdk_x11_drag_context_xevent (GdkDisplay *display,
|
||
const XEvent *xevent,
|
||
gpointer data)
|
||
{
|
||
GdkDragContext *context = GDK_DRAG_CONTEXT (data);
|
||
GdkX11DragContext *x11_context = GDK_X11_DRAG_CONTEXT (context);
|
||
Window xwindow;
|
||
Atom xselection;
|
||
|
||
xwindow = GDK_SURFACE_XID (x11_context->ipc_surface);
|
||
xselection = gdk_x11_get_xatom_by_name_for_display (display, "XdndSelection");
|
||
|
||
if (xevent->xany.window != xwindow)
|
||
return FALSE;
|
||
|
||
switch (xevent->type)
|
||
{
|
||
case SelectionClear:
|
||
if (xevent->xselectionclear.selection != xselection)
|
||
return FALSE;
|
||
|
||
if (xevent->xselectionclear.time < x11_context->timestamp)
|
||
{
|
||
GDK_DISPLAY_NOTE (display, CLIPBOARD, g_printerr ("ignoring SelectionClear with too old timestamp (%lu vs %lu)\n",
|
||
xevent->xselectionclear.time, x11_context->timestamp));
|
||
return FALSE;
|
||
}
|
||
|
||
GDK_DISPLAY_NOTE (display, CLIPBOARD, g_printerr ("got SelectionClear, aborting DND\n"));
|
||
gdk_drag_context_cancel (context, GDK_DRAG_CANCEL_ERROR);
|
||
return TRUE;
|
||
|
||
case SelectionRequest:
|
||
{
|
||
const char *target, *property;
|
||
|
||
if (xevent->xselectionrequest.selection != xselection)
|
||
return FALSE;
|
||
|
||
target = gdk_x11_get_xatom_name_for_display (display, xevent->xselectionrequest.target);
|
||
if (xevent->xselectionrequest.property == None)
|
||
property = target;
|
||
else
|
||
property = gdk_x11_get_xatom_name_for_display (display, xevent->xselectionrequest.property);
|
||
|
||
if (xevent->xselectionrequest.requestor == None)
|
||
{
|
||
GDK_DISPLAY_NOTE (display, CLIPBOARD, g_printerr ("got SelectionRequest for %s @ %s with NULL window, ignoring\n",
|
||
target, property));
|
||
return TRUE;
|
||
}
|
||
|
||
GDK_DISPLAY_NOTE (display, CLIPBOARD, g_printerr ("got SelectionRequest for %s @ %s\n",
|
||
target, property));
|
||
|
||
gdk_x11_selection_output_streams_create (display,
|
||
gdk_drag_context_get_formats (context),
|
||
xevent->xselectionrequest.requestor,
|
||
xevent->xselectionrequest.selection,
|
||
xevent->xselectionrequest.target,
|
||
xevent->xselectionrequest.property ? xevent->xselectionrequest.property
|
||
: xevent->xselectionrequest.target,
|
||
xevent->xselectionrequest.time,
|
||
gdk_x11_drag_context_default_output_handler,
|
||
context);
|
||
return TRUE;
|
||
}
|
||
|
||
case ClientMessage:
|
||
if (xevent->xclient.message_type == gdk_x11_get_xatom_by_name_for_display (display, "XdndStatus"))
|
||
return xdnd_status_filter (display, xevent);
|
||
else if (xevent->xclient.message_type == gdk_x11_get_xatom_by_name_for_display (display, "XdndFinished"))
|
||
return xdnd_finished_filter (display, xevent);
|
||
else
|
||
return FALSE;
|
||
|
||
default:
|
||
return FALSE;
|
||
}
|
||
}
|
||
|
||
static double
|
||
ease_out_cubic (double t)
|
||
{
|
||
double p = t - 1;
|
||
return p * p * p + 1;
|
||
}
|
||
|
||
|
||
#define ANIM_TIME 500000 /* half a second */
|
||
|
||
typedef struct _GdkDragAnim GdkDragAnim;
|
||
struct _GdkDragAnim {
|
||
GdkX11DragContext *context;
|
||
GdkFrameClock *frame_clock;
|
||
gint64 start_time;
|
||
};
|
||
|
||
static void
|
||
gdk_drag_anim_destroy (GdkDragAnim *anim)
|
||
{
|
||
g_object_unref (anim->context);
|
||
g_slice_free (GdkDragAnim, anim);
|
||
}
|
||
|
||
static gboolean
|
||
gdk_drag_anim_timeout (gpointer data)
|
||
{
|
||
GdkDragAnim *anim = data;
|
||
GdkX11DragContext *context = anim->context;
|
||
GdkFrameClock *frame_clock = anim->frame_clock;
|
||
gint64 current_time;
|
||
double f;
|
||
double t;
|
||
|
||
if (!frame_clock)
|
||
return G_SOURCE_REMOVE;
|
||
|
||
current_time = gdk_frame_clock_get_frame_time (frame_clock);
|
||
|
||
f = (current_time - anim->start_time) / (double) ANIM_TIME;
|
||
|
||
if (f >= 1.0)
|
||
return G_SOURCE_REMOVE;
|
||
|
||
t = ease_out_cubic (f);
|
||
|
||
gdk_surface_show (context->drag_surface);
|
||
gdk_surface_move (context->drag_surface,
|
||
context->last_x + (context->start_x - context->last_x) * t,
|
||
context->last_y + (context->start_y - context->last_y) * t);
|
||
gdk_surface_set_opacity (context->drag_surface, 1.0 - f);
|
||
|
||
return G_SOURCE_CONTINUE;
|
||
}
|
||
|
||
static void
|
||
gdk_x11_drag_context_release_selection (GdkDragContext *context)
|
||
{
|
||
GdkX11DragContext *x11_context = GDK_X11_DRAG_CONTEXT (context);
|
||
GdkDisplay *display;
|
||
Display *xdisplay;
|
||
Window xwindow;
|
||
Atom xselection;
|
||
|
||
display = gdk_drag_context_get_display (context);
|
||
xdisplay = GDK_DISPLAY_XDISPLAY (display);
|
||
xselection = gdk_x11_get_xatom_by_name_for_display (display, "XdndSelection");
|
||
xwindow = GDK_SURFACE_XID (x11_context->ipc_surface);
|
||
|
||
if (XGetSelectionOwner (xdisplay, xselection) == xwindow)
|
||
XSetSelectionOwner (xdisplay, xselection, None, CurrentTime);
|
||
}
|
||
|
||
static void
|
||
gdk_x11_drag_context_drop_done (GdkDragContext *context,
|
||
gboolean success)
|
||
{
|
||
GdkX11DragContext *x11_context = GDK_X11_DRAG_CONTEXT (context);
|
||
GdkDragAnim *anim;
|
||
/*
|
||
cairo_surface_t *win_surface;
|
||
cairo_surface_t *surface;
|
||
cairo_t *cr;
|
||
*/
|
||
guint id;
|
||
|
||
gdk_x11_drag_context_release_selection (context);
|
||
|
||
g_signal_handlers_disconnect_by_func (gdk_drag_context_get_display (context),
|
||
gdk_x11_drag_context_xevent,
|
||
context);
|
||
if (success)
|
||
{
|
||
gdk_surface_hide (x11_context->drag_surface);
|
||
return;
|
||
}
|
||
|
||
/*
|
||
win_surface = _gdk_surface_ref_cairo_surface (x11_context->drag_surface);
|
||
surface = gdk_surface_create_similar_surface (x11_context->drag_surface,
|
||
cairo_surface_get_content (win_surface),
|
||
gdk_surface_get_width (x11_context->drag_surface),
|
||
gdk_surface_get_height (x11_context->drag_surface));
|
||
cr = cairo_create (surface);
|
||
cairo_set_source_surface (cr, win_surface, 0, 0);
|
||
cairo_paint (cr);
|
||
cairo_destroy (cr);
|
||
cairo_surface_destroy (win_surface);
|
||
|
||
pattern = cairo_pattern_create_for_surface (surface);
|
||
|
||
gdk_surface_set_background_pattern (x11_context->drag_surface, pattern);
|
||
|
||
cairo_pattern_destroy (pattern);
|
||
cairo_surface_destroy (surface);
|
||
*/
|
||
|
||
anim = g_slice_new0 (GdkDragAnim);
|
||
anim->context = g_object_ref (x11_context);
|
||
anim->frame_clock = gdk_surface_get_frame_clock (x11_context->drag_surface);
|
||
anim->start_time = gdk_frame_clock_get_frame_time (anim->frame_clock);
|
||
|
||
id = g_timeout_add_full (G_PRIORITY_DEFAULT, 17,
|
||
gdk_drag_anim_timeout, anim,
|
||
(GDestroyNotify) gdk_drag_anim_destroy);
|
||
g_source_set_name_by_id (id, "[gtk+] gdk_drag_anim_timeout");
|
||
}
|
||
|
||
static gboolean
|
||
drag_context_grab (GdkDragContext *context)
|
||
{
|
||
GdkX11DragContext *x11_context = GDK_X11_DRAG_CONTEXT (context);
|
||
GdkDevice *device = gdk_drag_context_get_device (context);
|
||
GdkSeatCapabilities capabilities;
|
||
GdkDisplay *display;
|
||
Window root;
|
||
GdkSeat *seat;
|
||
gint keycode, i;
|
||
GdkCursor *cursor;
|
||
|
||
if (!x11_context->ipc_surface)
|
||
return FALSE;
|
||
|
||
display = gdk_drag_context_get_display (context);
|
||
root = GDK_DISPLAY_XROOTWIN (display);
|
||
seat = gdk_device_get_seat (gdk_drag_context_get_device (context));
|
||
|
||
#ifdef XINPUT_2
|
||
if (GDK_IS_X11_DEVICE_XI2 (device))
|
||
capabilities = GDK_SEAT_CAPABILITY_ALL_POINTING;
|
||
else
|
||
#endif
|
||
capabilities = GDK_SEAT_CAPABILITY_ALL;
|
||
|
||
cursor = gdk_drag_get_cursor (context, x11_context->current_action);
|
||
g_set_object (&x11_context->cursor, cursor);
|
||
|
||
if (gdk_seat_grab (seat, x11_context->ipc_surface,
|
||
capabilities, FALSE,
|
||
x11_context->cursor, NULL, NULL, NULL) != GDK_GRAB_SUCCESS)
|
||
return FALSE;
|
||
|
||
g_set_object (&x11_context->grab_seat, seat);
|
||
|
||
gdk_x11_display_error_trap_push (display);
|
||
|
||
for (i = 0; i < G_N_ELEMENTS (grab_keys); ++i)
|
||
{
|
||
keycode = XKeysymToKeycode (GDK_DISPLAY_XDISPLAY (display),
|
||
grab_keys[i].keysym);
|
||
if (keycode == NoSymbol)
|
||
continue;
|
||
|
||
#ifdef XINPUT_2
|
||
if (GDK_IS_X11_DEVICE_XI2 (device))
|
||
{
|
||
gint deviceid = gdk_x11_device_get_id (gdk_seat_get_keyboard (seat));
|
||
unsigned char mask[XIMaskLen(XI_LASTEVENT)];
|
||
XIGrabModifiers mods;
|
||
XIEventMask evmask;
|
||
gint num_mods;
|
||
|
||
memset (mask, 0, sizeof (mask));
|
||
XISetMask (mask, XI_KeyPress);
|
||
XISetMask (mask, XI_KeyRelease);
|
||
|
||
evmask.deviceid = deviceid;
|
||
evmask.mask_len = sizeof (mask);
|
||
evmask.mask = mask;
|
||
|
||
num_mods = 1;
|
||
mods.modifiers = grab_keys[i].modifiers;
|
||
|
||
XIGrabKeycode (GDK_DISPLAY_XDISPLAY (display),
|
||
deviceid,
|
||
keycode,
|
||
root,
|
||
GrabModeAsync,
|
||
GrabModeAsync,
|
||
False,
|
||
&evmask,
|
||
num_mods,
|
||
&mods);
|
||
}
|
||
else
|
||
#endif
|
||
{
|
||
XGrabKey (GDK_DISPLAY_XDISPLAY (display),
|
||
keycode, grab_keys[i].modifiers,
|
||
root,
|
||
FALSE,
|
||
GrabModeAsync,
|
||
GrabModeAsync);
|
||
}
|
||
}
|
||
|
||
gdk_x11_display_error_trap_pop_ignored (display);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static void
|
||
drag_context_ungrab (GdkDragContext *context)
|
||
{
|
||
GdkX11DragContext *x11_context = GDK_X11_DRAG_CONTEXT (context);
|
||
GdkDisplay *display;
|
||
GdkDevice *keyboard;
|
||
Window root;
|
||
gint keycode, i;
|
||
|
||
if (!x11_context->grab_seat)
|
||
return;
|
||
|
||
gdk_seat_ungrab (x11_context->grab_seat);
|
||
|
||
display = gdk_drag_context_get_display (context);
|
||
keyboard = gdk_seat_get_keyboard (x11_context->grab_seat);
|
||
root = GDK_DISPLAY_XROOTWIN (display);
|
||
g_clear_object (&x11_context->grab_seat);
|
||
|
||
for (i = 0; i < G_N_ELEMENTS (grab_keys); ++i)
|
||
{
|
||
keycode = XKeysymToKeycode (GDK_DISPLAY_XDISPLAY (display),
|
||
grab_keys[i].keysym);
|
||
if (keycode == NoSymbol)
|
||
continue;
|
||
|
||
#ifdef XINPUT_2
|
||
if (GDK_IS_X11_DEVICE_XI2 (keyboard))
|
||
{
|
||
XIGrabModifiers mods;
|
||
gint num_mods;
|
||
|
||
num_mods = 1;
|
||
mods.modifiers = grab_keys[i].modifiers;
|
||
|
||
XIUngrabKeycode (GDK_DISPLAY_XDISPLAY (display),
|
||
gdk_x11_device_get_id (keyboard),
|
||
keycode,
|
||
root,
|
||
num_mods,
|
||
&mods);
|
||
}
|
||
else
|
||
#endif /* XINPUT_2 */
|
||
{
|
||
XUngrabKey (GDK_DISPLAY_XDISPLAY (display),
|
||
keycode, grab_keys[i].modifiers,
|
||
root);
|
||
}
|
||
}
|
||
}
|
||
|
||
GdkDragContext *
|
||
_gdk_x11_surface_drag_begin (GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkContentProvider *content,
|
||
GdkDragAction actions,
|
||
gint dx,
|
||
gint dy)
|
||
{
|
||
GdkX11DragContext *x11_context;
|
||
GdkDragContext *context;
|
||
GdkDisplay *display;
|
||
int x_root, y_root;
|
||
Atom xselection;
|
||
|
||
display = gdk_surface_get_display (surface);
|
||
|
||
context = (GdkDragContext *) g_object_new (GDK_TYPE_X11_DRAG_CONTEXT,
|
||
"device", device,
|
||
"content", content,
|
||
NULL);
|
||
x11_context = GDK_X11_DRAG_CONTEXT (context);
|
||
|
||
context->is_source = TRUE;
|
||
|
||
g_signal_connect (display, "xevent", G_CALLBACK (gdk_x11_drag_context_xevent), context);
|
||
|
||
precache_target_list (context);
|
||
|
||
gdk_device_get_position (device, &x_root, &y_root);
|
||
x_root += dx;
|
||
y_root += dy;
|
||
|
||
x11_context->start_x = x_root;
|
||
x11_context->start_y = y_root;
|
||
x11_context->last_x = x_root;
|
||
x11_context->last_y = y_root;
|
||
|
||
x11_context->protocol = GDK_DRAG_PROTO_XDND;
|
||
x11_context->actions = actions;
|
||
x11_context->ipc_surface = gdk_surface_new_popup (display, &(GdkRectangle) { -99, -99, 1, 1 });
|
||
if (gdk_surface_get_group (surface))
|
||
gdk_surface_set_group (x11_context->ipc_surface, surface);
|
||
gdk_surface_show (x11_context->ipc_surface);
|
||
|
||
context->source_surface = x11_context->ipc_surface;
|
||
g_object_ref (context->source_surface);
|
||
|
||
x11_context->drag_surface = create_drag_surface (display);
|
||
|
||
if (!drag_context_grab (context))
|
||
{
|
||
g_object_unref (context);
|
||
return NULL;
|
||
}
|
||
|
||
move_drag_surface (context, x_root, y_root);
|
||
|
||
x11_context->timestamp = gdk_display_get_last_seen_time (display);
|
||
xselection = gdk_x11_get_xatom_by_name_for_display (display, "XdndSelection");
|
||
XSetSelectionOwner (GDK_DISPLAY_XDISPLAY (display),
|
||
xselection,
|
||
GDK_SURFACE_XID (x11_context->ipc_surface),
|
||
x11_context->timestamp);
|
||
if (XGetSelectionOwner (GDK_DISPLAY_XDISPLAY (display), xselection) != GDK_SURFACE_XID (x11_context->ipc_surface))
|
||
{
|
||
GDK_DISPLAY_NOTE (display, DND, g_printerr ("failed XSetSelectionOwner() on \"XdndSelection\", aborting DND\n"));
|
||
g_object_unref (context);
|
||
return NULL;
|
||
}
|
||
|
||
return context;
|
||
}
|
||
|
||
static void
|
||
gdk_x11_drag_context_set_cursor (GdkDragContext *context,
|
||
GdkCursor *cursor)
|
||
{
|
||
GdkX11DragContext *x11_context = GDK_X11_DRAG_CONTEXT (context);
|
||
|
||
if (!g_set_object (&x11_context->cursor, cursor))
|
||
return;
|
||
|
||
if (x11_context->grab_seat)
|
||
{
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
|
||
gdk_device_grab (gdk_seat_get_pointer (x11_context->grab_seat),
|
||
x11_context->ipc_surface,
|
||
GDK_OWNERSHIP_APPLICATION, FALSE,
|
||
GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
|
||
cursor, GDK_CURRENT_TIME);
|
||
G_GNUC_END_IGNORE_DEPRECATIONS;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gdk_x11_drag_context_cancel (GdkDragContext *context,
|
||
GdkDragCancelReason reason)
|
||
{
|
||
drag_context_ungrab (context);
|
||
gdk_drag_drop_done (context, FALSE);
|
||
}
|
||
|
||
static void
|
||
gdk_x11_drag_context_drop_performed (GdkDragContext *context,
|
||
guint32 time_)
|
||
{
|
||
gdk_drag_drop (context, time_);
|
||
drag_context_ungrab (context);
|
||
}
|
||
|
||
#define BIG_STEP 20
|
||
#define SMALL_STEP 1
|
||
|
||
static void
|
||
gdk_drag_get_current_actions (GdkModifierType state,
|
||
gint button,
|
||
GdkDragAction actions,
|
||
GdkDragAction *suggested_action,
|
||
GdkDragAction *possible_actions)
|
||
{
|
||
*suggested_action = 0;
|
||
*possible_actions = 0;
|
||
|
||
if ((button == GDK_BUTTON_MIDDLE || button == GDK_BUTTON_SECONDARY) && (actions & GDK_ACTION_ASK))
|
||
{
|
||
*suggested_action = GDK_ACTION_ASK;
|
||
*possible_actions = actions;
|
||
}
|
||
else if (state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))
|
||
{
|
||
if ((state & GDK_SHIFT_MASK) && (state & GDK_CONTROL_MASK))
|
||
{
|
||
if (actions & GDK_ACTION_LINK)
|
||
{
|
||
*suggested_action = GDK_ACTION_LINK;
|
||
*possible_actions = GDK_ACTION_LINK;
|
||
}
|
||
}
|
||
else if (state & GDK_CONTROL_MASK)
|
||
{
|
||
if (actions & GDK_ACTION_COPY)
|
||
{
|
||
*suggested_action = GDK_ACTION_COPY;
|
||
*possible_actions = GDK_ACTION_COPY;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (actions & GDK_ACTION_MOVE)
|
||
{
|
||
*suggested_action = GDK_ACTION_MOVE;
|
||
*possible_actions = GDK_ACTION_MOVE;
|
||
}
|
||
}
|
||
}
|
||
else
|
||
{
|
||
*possible_actions = actions;
|
||
|
||
if ((state & (GDK_MOD1_MASK)) && (actions & GDK_ACTION_ASK))
|
||
*suggested_action = GDK_ACTION_ASK;
|
||
else if (actions & GDK_ACTION_COPY)
|
||
*suggested_action = GDK_ACTION_COPY;
|
||
else if (actions & GDK_ACTION_MOVE)
|
||
*suggested_action = GDK_ACTION_MOVE;
|
||
else if (actions & GDK_ACTION_LINK)
|
||
*suggested_action = GDK_ACTION_LINK;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gdk_drag_update (GdkDragContext *context,
|
||
gdouble x_root,
|
||
gdouble y_root,
|
||
GdkModifierType mods,
|
||
guint32 evtime)
|
||
{
|
||
GdkX11DragContext *x11_context = GDK_X11_DRAG_CONTEXT (context);
|
||
GdkDragAction action, possible_actions;
|
||
GdkSurface *dest_surface;
|
||
GdkDragProtocol protocol;
|
||
|
||
gdk_drag_get_current_actions (mods, GDK_BUTTON_PRIMARY, x11_context->actions,
|
||
&action, &possible_actions);
|
||
|
||
dest_surface = gdk_x11_drag_context_find_surface (context,
|
||
x11_context->drag_surface,
|
||
x_root, y_root, &protocol);
|
||
|
||
gdk_x11_drag_context_drag_motion (context, dest_surface, protocol, x_root, y_root,
|
||
action, possible_actions, evtime);
|
||
}
|
||
|
||
static gboolean
|
||
gdk_dnd_handle_motion_event (GdkDragContext *context,
|
||
const GdkEventMotion *event)
|
||
{
|
||
GdkModifierType state;
|
||
|
||
if (!gdk_event_get_state ((GdkEvent *) event, &state))
|
||
return FALSE;
|
||
|
||
gdk_drag_update (context, event->x_root, event->y_root, state,
|
||
gdk_event_get_time ((GdkEvent *) event));
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean
|
||
gdk_dnd_handle_key_event (GdkDragContext *context,
|
||
const GdkEventKey *event)
|
||
{
|
||
GdkX11DragContext *x11_context = GDK_X11_DRAG_CONTEXT (context);
|
||
GdkModifierType state;
|
||
GdkDevice *pointer;
|
||
gint dx, dy;
|
||
|
||
dx = dy = 0;
|
||
state = event->state;
|
||
pointer = gdk_device_get_associated_device (gdk_event_get_device ((GdkEvent *) event));
|
||
|
||
if (event->any.type == GDK_KEY_PRESS)
|
||
{
|
||
switch (event->keyval)
|
||
{
|
||
case GDK_KEY_Escape:
|
||
gdk_drag_context_cancel (context, GDK_DRAG_CANCEL_USER_CANCELLED);
|
||
return TRUE;
|
||
|
||
case GDK_KEY_space:
|
||
case GDK_KEY_Return:
|
||
case GDK_KEY_ISO_Enter:
|
||
case GDK_KEY_KP_Enter:
|
||
case GDK_KEY_KP_Space:
|
||
if ((gdk_drag_context_get_selected_action (context) != 0) &&
|
||
(context->dest_surface != NULL))
|
||
{
|
||
g_signal_emit_by_name (context, "drop-performed",
|
||
gdk_event_get_time ((GdkEvent *) event));
|
||
}
|
||
else
|
||
gdk_drag_context_cancel (context, GDK_DRAG_CANCEL_NO_TARGET);
|
||
|
||
return TRUE;
|
||
|
||
case GDK_KEY_Up:
|
||
case GDK_KEY_KP_Up:
|
||
dy = (state & GDK_MOD1_MASK) ? -BIG_STEP : -SMALL_STEP;
|
||
break;
|
||
|
||
case GDK_KEY_Down:
|
||
case GDK_KEY_KP_Down:
|
||
dy = (state & GDK_MOD1_MASK) ? BIG_STEP : SMALL_STEP;
|
||
break;
|
||
|
||
case GDK_KEY_Left:
|
||
case GDK_KEY_KP_Left:
|
||
dx = (state & GDK_MOD1_MASK) ? -BIG_STEP : -SMALL_STEP;
|
||
break;
|
||
|
||
case GDK_KEY_Right:
|
||
case GDK_KEY_KP_Right:
|
||
dx = (state & GDK_MOD1_MASK) ? BIG_STEP : SMALL_STEP;
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* The state is not yet updated in the event, so we need
|
||
* to query it here. We could use XGetModifierMapping, but
|
||
* that would be overkill.
|
||
*/
|
||
_gdk_device_query_state (pointer, NULL, NULL, NULL, NULL, NULL, NULL, &state);
|
||
|
||
if (dx != 0 || dy != 0)
|
||
{
|
||
x11_context->last_x += dx;
|
||
x11_context->last_y += dy;
|
||
gdk_device_warp (pointer, x11_context->last_x, x11_context->last_y);
|
||
}
|
||
|
||
gdk_drag_update (context, x11_context->last_x, x11_context->last_y, state,
|
||
gdk_event_get_time ((GdkEvent *) event));
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean
|
||
gdk_dnd_handle_grab_broken_event (GdkDragContext *context,
|
||
const GdkEventGrabBroken *event)
|
||
{
|
||
GdkX11DragContext *x11_context = GDK_X11_DRAG_CONTEXT (context);
|
||
|
||
/* Don't cancel if we break the implicit grab from the initial button_press.
|
||
* Also, don't cancel if we re-grab on the widget or on our IPC window, for
|
||
* example, when changing the drag cursor.
|
||
*/
|
||
if (event->implicit ||
|
||
event->grab_surface == x11_context->drag_surface ||
|
||
event->grab_surface == x11_context->ipc_surface)
|
||
return FALSE;
|
||
|
||
if (gdk_event_get_device ((GdkEvent *) event) !=
|
||
gdk_drag_context_get_device (context))
|
||
return FALSE;
|
||
|
||
gdk_drag_context_cancel (context, GDK_DRAG_CANCEL_ERROR);
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean
|
||
gdk_dnd_handle_button_event (GdkDragContext *context,
|
||
const GdkEventButton *event)
|
||
{
|
||
#if 0
|
||
/* FIXME: Check the button matches */
|
||
if (event->button != x11_context->button)
|
||
return FALSE;
|
||
#endif
|
||
|
||
if ((gdk_drag_context_get_selected_action (context) != 0) &&
|
||
(context->dest_surface != NULL))
|
||
{
|
||
g_signal_emit_by_name (context, "drop-performed",
|
||
gdk_event_get_time ((GdkEvent *) event));
|
||
}
|
||
else
|
||
gdk_drag_context_cancel (context, GDK_DRAG_CANCEL_NO_TARGET);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
gboolean
|
||
gdk_x11_drag_context_handle_event (GdkDragContext *context,
|
||
const GdkEvent *event)
|
||
{
|
||
GdkX11DragContext *x11_context = GDK_X11_DRAG_CONTEXT (context);
|
||
|
||
if (!context->is_source)
|
||
return FALSE;
|
||
if (!x11_context->grab_seat)
|
||
return FALSE;
|
||
|
||
switch ((guint) event->any.type)
|
||
{
|
||
case GDK_MOTION_NOTIFY:
|
||
return gdk_dnd_handle_motion_event (context, &event->motion);
|
||
case GDK_BUTTON_RELEASE:
|
||
return gdk_dnd_handle_button_event (context, &event->button);
|
||
case GDK_KEY_PRESS:
|
||
case GDK_KEY_RELEASE:
|
||
return gdk_dnd_handle_key_event (context, &event->key);
|
||
case GDK_GRAB_BROKEN:
|
||
return gdk_dnd_handle_grab_broken_event (context, &event->grab_broken);
|
||
default:
|
||
break;
|
||
}
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
void
|
||
gdk_x11_drag_context_action_changed (GdkDragContext *context,
|
||
GdkDragAction action)
|
||
{
|
||
GdkCursor *cursor;
|
||
|
||
cursor = gdk_drag_get_cursor (context, action);
|
||
gdk_drag_context_set_cursor (context, cursor);
|
||
}
|