Always associate a drag context with a GdkDisplay and use that when getting a cursor for a given action. If we don't do this, dragging on a window that doesn't use the default display will make us use cursors from the wrong display. https://bugzilla.gnome.org/show_bug.cgi?id=765565
		
			
				
	
	
		
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			5.2 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			130 lines
		
	
	
		
			5.2 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/* GDK - The GIMP Drawing Kit
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 * Copyright (C) 2010, Red Hat, Inc
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 *
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 * This library is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2 of the License, or (at your option) any later version.
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 *
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 * This library is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
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 */
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#ifndef __GDK_DND_PRIVATE_H__
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#define __GDK_DND_PRIVATE_H__
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#include "gdkdnd.h"
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G_BEGIN_DECLS
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#define GDK_DRAG_CONTEXT_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_DRAG_CONTEXT, GdkDragContextClass))
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#define GDK_IS_DRAG_CONTEXT_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_DRAG_CONTEXT))
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#define GDK_DRAG_CONTEXT_GET_CLASS(obj)    (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_DRAG_CONTEXT, GdkDragContextClass))
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typedef struct _GdkDragContextClass GdkDragContextClass;
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struct _GdkDragContextClass {
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  GObjectClass parent_class;
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  GdkWindow * (*find_window)   (GdkDragContext  *context,
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                                GdkWindow       *drag_window,
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                                GdkScreen       *screen,
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                                gint             x_root,
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                                gint             y_root,
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                                GdkDragProtocol *protocol);
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  GdkAtom     (*get_selection) (GdkDragContext  *context);
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  gboolean    (*drag_motion)   (GdkDragContext  *context,
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                                GdkWindow       *dest_window,
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                                GdkDragProtocol  protocol,
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                                gint             root_x,
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                                gint             root_y,
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                                GdkDragAction    suggested_action,
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                                GdkDragAction    possible_actions,
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                                guint32          time_);
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  void        (*drag_status)   (GdkDragContext  *context,
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                                GdkDragAction    action,
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                                guint32          time_);
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  void        (*drag_abort)    (GdkDragContext  *context,
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                                guint32          time_);
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  void        (*drag_drop)     (GdkDragContext  *context,
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                                guint32          time_);
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  void        (*drop_reply)    (GdkDragContext  *context,
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                                gboolean         accept,
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                                guint32          time_);
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  void        (*drop_finish)   (GdkDragContext  *context,
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                                gboolean         success,
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                                guint32          time_);
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  gboolean    (*drop_status)   (GdkDragContext  *context);
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  GdkWindow*  (*get_drag_window) (GdkDragContext *context);
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  void        (*set_hotspot)   (GdkDragContext  *context,
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                                gint             hot_x,
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                                gint             hot_y);
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  void        (*drop_done)     (GdkDragContext   *context,
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                                gboolean          success);
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  gboolean    (*manage_dnd)     (GdkDragContext  *context,
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                                 GdkWindow       *ipc_window,
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                                 GdkDragAction    actions);
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  void        (*set_cursor)     (GdkDragContext  *context,
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                                 GdkCursor       *cursor);
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  void        (*cancel)         (GdkDragContext      *context,
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                                 GdkDragCancelReason  reason);
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  void        (*drop_performed) (GdkDragContext  *context,
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                                 guint32          time);
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  void        (*dnd_finished)   (GdkDragContext  *context);
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  gboolean    (*handle_event)   (GdkDragContext  *context,
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                                 const GdkEvent  *event);
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  void        (*action_changed) (GdkDragContext  *context,
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                                 GdkDragAction    action);
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  void        (*commit_drag_status) (GdkDragContext  *context);
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};
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struct _GdkDragContext {
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  GObject parent_instance;
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  /*< private >*/
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  GdkDragProtocol protocol;
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  GdkDisplay *display;
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  gboolean is_source;
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  GdkWindow *source_window;
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  GdkWindow *dest_window;
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  GdkWindow *drag_window;
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  GList *targets;
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  GdkDragAction actions;
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  GdkDragAction suggested_action;
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  GdkDragAction action;
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  guint32 start_time;
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  GdkDevice *device;
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  guint drop_done : 1; /* Whether gdk_drag_drop_done() was performed */
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};
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GList *  gdk_drag_context_list (void);
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void     gdk_drag_context_set_cursor          (GdkDragContext *context,
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                                               GdkCursor      *cursor);
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void     gdk_drag_context_cancel              (GdkDragContext      *context,
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                                               GdkDragCancelReason  reason);
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gboolean gdk_drag_context_handle_source_event (GdkEvent *event);
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gboolean gdk_drag_context_handle_dest_event   (GdkEvent *event);
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GdkCursor * gdk_drag_get_cursor               (GdkDragContext *context,
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                                               GdkDragAction   action);
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G_END_DECLS
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#endif
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