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/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1999 Peter Mattis, Spencer Kimball and Josh MacDonald
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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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* 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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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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* 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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#include "gdkconfig.h"
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#include "gdk/gdkkeysyms.h"
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#include "gtkiconfactory.h"
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#include "gtkicontheme.h"
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#include "gtkinvisible.h"
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#include "gtkwindow.h"
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#include "gtkquartz.h"
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#include "gdk/quartz/gdkquartz.h"
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typedef struct _GtkDragSourceSite GtkDragSourceSite;
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typedef struct _GtkDragSourceInfo GtkDragSourceInfo;
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typedef struct _GtkDragDestSite GtkDragDestSite;
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typedef struct _GtkDragDestInfo GtkDragDestInfo;
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typedef struct _GtkDragFindData GtkDragFindData;
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static void gtk_drag_find_widget (GtkWidget *widget,
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GtkDragFindData *data);
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static void gtk_drag_dest_site_destroy (gpointer data);
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static void gtk_drag_dest_leave (GtkWidget *widget,
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GdkDragContext *context,
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static GtkDragDestInfo *gtk_drag_get_dest_info (GdkDragContext *context,
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static void gtk_drag_source_site_destroy (gpointer data);
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struct _GtkDragSourceSite
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GdkModifierType start_button_mask;
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GtkTargetList *target_list; /* Targets for drag data */
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GdkDragAction actions; /* Possible actions */
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GtkImageType icon_type;
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GtkImagePixmapData pixmap;
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GtkImagePixbufData pixbuf;
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GtkImageStockData stock;
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GtkImageIconNameData name;
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GdkColormap *colormap; /* Colormap for drag icon */
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/* Stored button press information to detect drag beginning */
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struct _GtkDragSourceInfo
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GtkTargetList *target_list; /* Targets for drag data */
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GdkDragAction possible_actions; /* Actions allowed by source */
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GdkDragContext *context; /* drag context */
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gint hot_x, hot_y; /* Hot spot for drag */
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GdkPixbuf *icon_pixbuf;
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struct _GtkDragDestSite
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GtkDestDefaults flags;
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GtkTargetList *target_list;
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GdkDragAction actions;
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guint track_motion : 1;
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struct _GtkDragDestInfo
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GtkWidget *widget; /* Widget in which drag is in */
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GdkDragContext *context; /* Drag context */
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guint dropped : 1; /* Set after we receive a drop */
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gint drop_x, drop_y; /* Position of drop */
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struct _GtkDragFindData
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GdkDragContext *context;
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GtkDragDestInfo *info;
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gboolean (*callback) (GtkWidget *widget, GdkDragContext *context,
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gint x, gint y, guint32 time);
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@interface GtkDragSourceOwner : NSObject {
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GtkDragSourceInfo *info;
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@implementation GtkDragSourceOwner
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-(void)pasteboard:(NSPasteboard *)sender provideDataForType:(NSString *)type
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GtkSelectionData selection_data;
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selection_data.selection = GDK_NONE;
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selection_data.data = NULL;
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selection_data.target = _gtk_quartz_pasteboard_type_to_atom (type);
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if (gtk_target_list_find (info->target_list,
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selection_data.target,
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g_signal_emit_by_name (info->widget, "drag_data_get",
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_gtk_quartz_set_selection_data_for_pasteboard (sender, &selection_data);
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g_free (selection_data.data);
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- (id)initWithInfo:(GtkDragSourceInfo *)anInfo
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gtk_drag_get_data (GtkWidget *widget,
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GdkDragContext *context,
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id <NSDraggingInfo> dragging_info = GDK_DRAG_CONTEXT_PRIVATE (context)->dragging_info;
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NSPasteboard *pasteboard = [dragging_info draggingPasteboard];
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GtkSelectionData *selection_data;
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GtkDragDestInfo *info;
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GtkDragDestSite *site;
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info = gtk_drag_get_dest_info (context, FALSE);
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site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
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selection_data = _gtk_quartz_get_selection_data_from_pasteboard (pasteboard,
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if (site && site->target_list)
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if (gtk_target_list_find (site->target_list,
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selection_data->target,
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if (!(site->flags & GTK_DEST_DEFAULT_DROP) ||
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selection_data->length >= 0)
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g_signal_emit_by_name (widget,
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"drag_data_received",
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context, info->drop_x, info->drop_y,
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g_signal_emit_by_name (widget,
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"drag_data_received",
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context, info->drop_x, info->drop_y,
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if (site && site->flags & GTK_DEST_DEFAULT_DROP)
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gtk_drag_finish (context,
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(selection_data->length >= 0),
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(context->action == GDK_ACTION_MOVE),
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gtk_drag_get_source_widget (GdkDragContext *context)
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gtk_drag_finish (GdkDragContext *context,
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gtk_drag_dest_info_destroy (gpointer data)
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GtkDragDestInfo *info = data;
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static GtkDragDestInfo *
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gtk_drag_get_dest_info (GdkDragContext *context,
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GtkDragDestInfo *info;
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static GQuark info_quark = 0;
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info_quark = g_quark_from_static_string ("gtk-dest-info");
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info = g_object_get_qdata (G_OBJECT (context), info_quark);
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info = g_new (GtkDragDestInfo, 1);
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info->context = context;
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info->dropped = FALSE;
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g_object_set_qdata_full (G_OBJECT (context), info_quark,
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info, gtk_drag_dest_info_destroy);
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static GQuark dest_info_quark = 0;
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static GtkDragSourceInfo *
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gtk_drag_get_source_info (GdkDragContext *context,
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GtkDragSourceInfo *info;
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if (!dest_info_quark)
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dest_info_quark = g_quark_from_static_string ("gtk-source-info");
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info = g_object_get_qdata (G_OBJECT (context), dest_info_quark);
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info = g_new0 (GtkDragSourceInfo, 1);
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info->context = context;
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g_object_set_qdata (G_OBJECT (context), dest_info_quark, info);
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gtk_drag_clear_source_info (GdkDragContext *context)
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g_object_set_qdata (G_OBJECT (context), dest_info_quark, NULL);
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/*************************************************************
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* gtk_drag_highlight_expose:
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* Callback for expose_event for highlighted widgets.
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*************************************************************/
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gtk_drag_highlight_expose (GtkWidget *widget,
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GdkEventExpose *event,
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gint x, y, width, height;
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if (GTK_WIDGET_DRAWABLE (widget))
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if (GTK_WIDGET_NO_WINDOW (widget))
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x = widget->allocation.x;
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y = widget->allocation.y;
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width = widget->allocation.width;
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height = widget->allocation.height;
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gdk_drawable_get_size (widget->window, &width, &height);
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gtk_paint_shadow (widget->style, widget->window,
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GTK_STATE_NORMAL, GTK_SHADOW_OUT,
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x, y, width, height);
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cr = gdk_cairo_create (widget->window);
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cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */
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cairo_set_line_width (cr, 1.0);
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width - 1, height - 1);
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/*************************************************************
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* gtk_drag_highlight:
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* Highlight the given widget in the default manner.
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*************************************************************/
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gtk_drag_highlight (GtkWidget *widget)
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g_return_if_fail (GTK_IS_WIDGET (widget));
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g_signal_connect_after (widget, "expose_event",
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G_CALLBACK (gtk_drag_highlight_expose),
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gtk_widget_queue_draw (widget);
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/*************************************************************
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* gtk_drag_unhighlight:
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* Refresh the given widget to remove the highlight.
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*************************************************************/
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gtk_drag_unhighlight (GtkWidget *widget)
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g_return_if_fail (GTK_IS_WIDGET (widget));
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g_signal_handlers_disconnect_by_func (widget,
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gtk_drag_highlight_expose,
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gtk_widget_queue_draw (widget);
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get_toplevel_nswindow (GtkWidget *widget)
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GtkWidget *toplevel = gtk_widget_get_toplevel (widget);
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if (GTK_WIDGET_TOPLEVEL (toplevel) && toplevel->window)
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return [gdk_quartz_window_get_nsview (toplevel->window) window];
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register_types (GtkWidget *widget, GtkDragDestSite *site)
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if (site->target_list)
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NSWindow *nswindow = get_toplevel_nswindow (widget);
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NSAutoreleasePool *pool;
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pool = [[NSAutoreleasePool alloc] init];
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types = _gtk_quartz_target_list_to_pasteboard_types (site->target_list);
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[nswindow registerForDraggedTypes:types];
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gtk_drag_dest_realized (GtkWidget *widget,
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GtkDragDestSite *site = user_data;
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register_types (widget, site);
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gtk_drag_dest_hierarchy_changed (GtkWidget *widget,
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GtkWidget *previous_toplevel,
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GtkDragDestSite *site = user_data;
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register_types (widget, site);
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gtk_drag_dest_site_destroy (gpointer data)
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GtkDragDestSite *site = data;
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if (site->target_list)
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gtk_target_list_unref (site->target_list);
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gtk_drag_dest_set (GtkWidget *widget,
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GtkDestDefaults flags,
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const GtkTargetEntry *targets,
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GdkDragAction actions)
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GtkDragDestSite *old_site, *site;
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g_return_if_fail (GTK_IS_WIDGET (widget));
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old_site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
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gtk_drag_dest_unset (widget);
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site = g_new (GtkDragDestSite, 1);
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site->have_drag = FALSE;
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site->target_list = gtk_target_list_new (targets, n_targets);
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site->target_list = NULL;
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site->actions = actions;
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site->track_motion = old_site->track_motion;
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site->track_motion = FALSE;
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if (GTK_WIDGET_REALIZED (widget))
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gtk_drag_dest_realized (widget, site);
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g_signal_connect (widget, "realize",
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G_CALLBACK (gtk_drag_dest_realized), site);
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g_signal_connect (widget, "hierarchy_changed",
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G_CALLBACK (gtk_drag_dest_hierarchy_changed), site);
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g_object_set_data_full (G_OBJECT (widget), I_("gtk-drag-dest"),
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site, gtk_drag_dest_site_destroy);
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gtk_drag_dest_set_proxy (GtkWidget *widget,
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GdkWindow *proxy_window,
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GdkDragProtocol protocol,
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gboolean use_coordinates)
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g_warning ("gtk_drag_dest_set_proxy is not supported on Mac OS X.");
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gtk_drag_dest_unset (GtkWidget *widget)
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GtkDragDestSite *old_site;
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g_return_if_fail (GTK_IS_WIDGET (widget));
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old_site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
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g_signal_handlers_disconnect_by_func (widget,
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gtk_drag_dest_realized,
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g_signal_handlers_disconnect_by_func (widget,
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gtk_drag_dest_hierarchy_changed,
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g_object_set_data (G_OBJECT (widget), I_("gtk-drag-dest"), NULL);
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gtk_drag_dest_get_target_list (GtkWidget *widget)
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GtkDragDestSite *site;
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g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
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site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
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return site ? site->target_list : NULL;
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gtk_drag_dest_set_target_list (GtkWidget *widget,
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GtkTargetList *target_list)
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GtkDragDestSite *site;
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g_return_if_fail (GTK_IS_WIDGET (widget));
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site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
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g_warning ("Can't set a target list on a widget until you've called gtk_drag_dest_set() "
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"to make the widget into a drag destination");
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gtk_target_list_ref (target_list);
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if (site->target_list)
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gtk_target_list_unref (site->target_list);
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site->target_list = target_list;
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register_types (widget, site);
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gtk_drag_dest_add_text_targets (GtkWidget *widget)
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GtkTargetList *target_list;
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target_list = gtk_drag_dest_get_target_list (widget);
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gtk_target_list_ref (target_list);
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target_list = gtk_target_list_new (NULL, 0);
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gtk_target_list_add_text_targets (target_list, 0);
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gtk_drag_dest_set_target_list (widget, target_list);
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gtk_target_list_unref (target_list);
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gtk_drag_dest_add_image_targets (GtkWidget *widget)
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GtkTargetList *target_list;
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target_list = gtk_drag_dest_get_target_list (widget);
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gtk_target_list_ref (target_list);
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target_list = gtk_target_list_new (NULL, 0);
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gtk_target_list_add_image_targets (target_list, 0, FALSE);
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gtk_drag_dest_set_target_list (widget, target_list);
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gtk_target_list_unref (target_list);
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gtk_drag_dest_add_uri_targets (GtkWidget *widget)
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GtkTargetList *target_list;
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target_list = gtk_drag_dest_get_target_list (widget);
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gtk_target_list_ref (target_list);
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target_list = gtk_target_list_new (NULL, 0);
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gtk_target_list_add_uri_targets (target_list, 0);
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gtk_drag_dest_set_target_list (widget, target_list);
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gtk_target_list_unref (target_list);
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prepend_and_ref_widget (GtkWidget *widget,
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GSList **slist_p = data;
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*slist_p = g_slist_prepend (*slist_p, g_object_ref (widget));
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gtk_drag_find_widget (GtkWidget *widget,
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GtkDragFindData *data)
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GtkAllocation new_allocation;
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gint allocation_to_window_x = 0;
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gint allocation_to_window_y = 0;
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if (data->found || !GTK_WIDGET_MAPPED (widget) || !GTK_WIDGET_SENSITIVE (widget))
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/* Note that in the following code, we only count the
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* position as being inside a WINDOW widget if it is inside
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* widget->window; points that are outside of widget->window
640
* but within the allocation are not counted. This is consistent
641
* with the way we highlight drag targets.
643
* data->x,y are relative to widget->parent->window (if
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* widget is not a toplevel, widget->window otherwise).
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* We compute the allocation of widget in the same coordinates,
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* clipping to widget->window, and all intermediate
647
* windows. If data->x,y is inside that, then we translate
648
* our coordinates to be relative to widget->window and
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new_allocation = widget->allocation;
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GdkWindow *window = widget->window;
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/* Compute the offset from allocation-relative to
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* window-relative coordinates.
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allocation_to_window_x = widget->allocation.x;
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allocation_to_window_y = widget->allocation.y;
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if (!GTK_WIDGET_NO_WINDOW (widget))
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/* The allocation is relative to the parent window for
667
* window widgets, not to widget->window.
669
gdk_window_get_position (window, &tx, &ty);
671
allocation_to_window_x -= tx;
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allocation_to_window_y -= ty;
675
new_allocation.x = 0 + allocation_to_window_x;
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new_allocation.y = 0 + allocation_to_window_y;
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while (window && window != widget->parent->window)
680
GdkRectangle window_rect = { 0, 0, 0, 0 };
682
gdk_drawable_get_size (window, &window_rect.width, &window_rect.height);
684
gdk_rectangle_intersect (&new_allocation, &window_rect, &new_allocation);
686
gdk_window_get_position (window, &tx, &ty);
687
new_allocation.x += tx;
689
new_allocation.y += ty;
692
window = gdk_window_get_parent (window);
695
if (!window) /* Window and widget heirarchies didn't match. */
699
if (data->toplevel ||
700
((data->x >= new_allocation.x) && (data->y >= new_allocation.y) &&
701
(data->x < new_allocation.x + new_allocation.width) &&
702
(data->y < new_allocation.y + new_allocation.height)))
704
/* First, check if the drag is in a valid drop site in
705
* one of our children
707
if (GTK_IS_CONTAINER (widget))
709
GtkDragFindData new_data = *data;
710
GSList *children = NULL;
713
new_data.x -= x_offset;
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new_data.y -= y_offset;
715
new_data.found = FALSE;
716
new_data.toplevel = FALSE;
718
/* need to reference children temporarily in case the
719
* ::drag_motion/::drag_drop callbacks change the widget heirarchy.
721
gtk_container_forall (GTK_CONTAINER (widget), prepend_and_ref_widget, &children);
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for (tmp_list = children; tmp_list; tmp_list = tmp_list->next)
724
if (!new_data.found && GTK_WIDGET_DRAWABLE (tmp_list->data))
725
gtk_drag_find_widget (tmp_list->data, &new_data);
726
g_object_unref (tmp_list->data);
728
g_slist_free (children);
730
data->found = new_data.found;
733
/* If not, and this widget is registered as a drop site, check to
734
* emit "drag_motion" to check if we are actually in
738
g_object_get_data (G_OBJECT (widget), "gtk-drag-dest"))
740
data->found = data->callback (widget,
742
data->x - x_offset - allocation_to_window_x,
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data->y - y_offset - allocation_to_window_y,
745
/* If so, send a "drag_leave" to the last widget */
748
if (data->info->widget && data->info->widget != widget)
750
gtk_drag_dest_leave (data->info->widget, data->context, data->time);
752
data->info->widget = widget;
759
gtk_drag_dest_leave (GtkWidget *widget,
760
GdkDragContext *context,
763
GtkDragDestSite *site;
765
site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
766
g_return_if_fail (site != NULL);
768
if ((site->flags & GTK_DEST_DEFAULT_HIGHLIGHT) && site->have_drag)
769
gtk_drag_unhighlight (widget);
771
if (!(site->flags & GTK_DEST_DEFAULT_MOTION) || site->have_drag ||
773
g_signal_emit_by_name (widget, "drag_leave", context, time);
775
site->have_drag = FALSE;
779
gtk_drag_dest_motion (GtkWidget *widget,
780
GdkDragContext *context,
785
GtkDragDestSite *site;
786
GdkDragAction action = 0;
789
site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
790
g_return_val_if_fail (site != NULL, FALSE);
792
if (site->track_motion || site->flags & GTK_DEST_DEFAULT_MOTION)
794
if (context->suggested_action & site->actions)
795
action = context->suggested_action;
797
if (action && gtk_drag_dest_find_target (widget, context, NULL))
799
if (!site->have_drag)
801
site->have_drag = TRUE;
802
if (site->flags & GTK_DEST_DEFAULT_HIGHLIGHT)
803
gtk_drag_highlight (widget);
806
gdk_drag_status (context, action, time);
810
gdk_drag_status (context, 0, time);
811
if (!site->track_motion)
816
g_signal_emit_by_name (widget, "drag_motion",
817
context, x, y, time, &retval);
819
return (site->flags & GTK_DEST_DEFAULT_MOTION) ? TRUE : retval;
823
gtk_drag_dest_drop (GtkWidget *widget,
824
GdkDragContext *context,
829
GtkDragDestSite *site;
830
GtkDragDestInfo *info;
833
site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
834
g_return_val_if_fail (site != NULL, FALSE);
836
info = gtk_drag_get_dest_info (context, FALSE);
837
g_return_val_if_fail (info != NULL, FALSE);
842
if (site->flags & GTK_DEST_DEFAULT_DROP)
844
GdkAtom target = gtk_drag_dest_find_target (widget, context, NULL);
846
if (target == GDK_NONE)
848
gtk_drag_finish (context, FALSE, FALSE, time);
852
gtk_drag_get_data (widget, context, target, time);
855
g_signal_emit_by_name (widget, "drag_drop",
856
context, x, y, time, &retval);
858
return (site->flags & GTK_DEST_DEFAULT_DROP) ? TRUE : retval;
862
gtk_drag_dest_set_track_motion (GtkWidget *widget,
863
gboolean track_motion)
865
GtkDragDestSite *site;
867
g_return_if_fail (GTK_IS_WIDGET (widget));
869
site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
871
g_return_if_fail (site != NULL);
873
site->track_motion = track_motion != FALSE;
877
gtk_drag_dest_get_track_motion (GtkWidget *widget)
879
GtkDragDestSite *site;
881
g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
883
site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
886
return site->track_motion;
892
_gtk_drag_dest_handle_event (GtkWidget *toplevel,
895
GtkDragDestInfo *info;
896
GdkDragContext *context;
898
g_return_if_fail (toplevel != NULL);
899
g_return_if_fail (event != NULL);
901
context = event->dnd.context;
903
info = gtk_drag_get_dest_info (context, TRUE);
905
/* Find the widget for the event */
914
gtk_drag_dest_leave (info->widget, context, event->dnd.time);
919
case GDK_DRAG_MOTION:
922
GtkDragFindData data;
925
if (event->type == GDK_DROP_START)
927
info->dropped = TRUE;
928
/* We send a leave here so that the widget unhighlights
933
gtk_drag_dest_leave (info->widget, context, event->dnd.time);
938
gdk_window_get_position (toplevel->window, &tx, &ty);
940
data.x = event->dnd.x_root - tx;
941
data.y = event->dnd.y_root - ty;
942
data.context = context;
945
data.toplevel = TRUE;
946
data.callback = (event->type == GDK_DRAG_MOTION) ?
947
gtk_drag_dest_motion : gtk_drag_dest_drop;
948
data.time = event->dnd.time;
950
gtk_drag_find_widget (toplevel, &data);
952
if (info->widget && !data.found)
954
gtk_drag_dest_leave (info->widget, context, event->dnd.time);
960
if (event->type == GDK_DRAG_MOTION)
963
gdk_drag_status (context, 0, event->dnd.time);
968
g_assert_not_reached ();
975
gtk_drag_dest_find_target (GtkWidget *widget,
976
GdkDragContext *context,
977
GtkTargetList *target_list)
979
id <NSDraggingInfo> dragging_info = GDK_DRAG_CONTEXT_PRIVATE (context)->dragging_info;
980
NSPasteboard *pasteboard = [dragging_info draggingPasteboard];
981
GtkWidget *source_widget;
983
GList *tmp_source = NULL;
984
GList *source_targets;
986
g_return_val_if_fail (GTK_IS_WIDGET (widget), GDK_NONE);
987
g_return_val_if_fail (GDK_IS_DRAG_CONTEXT (context), GDK_NONE);
988
g_return_val_if_fail (!context->is_source, GDK_NONE);
990
source_widget = gtk_drag_get_source_widget (context);
992
if (target_list == NULL)
993
target_list = gtk_drag_dest_get_target_list (widget);
995
if (target_list == NULL)
998
source_targets = _gtk_quartz_pasteboard_types_to_atom_list ([pasteboard types]);
999
tmp_target = target_list->list;
1002
GtkTargetPair *pair = tmp_target->data;
1003
tmp_source = source_targets;
1006
if (tmp_source->data == GUINT_TO_POINTER (pair->target))
1008
if ((!(pair->flags & GTK_TARGET_SAME_APP) || source_widget) &&
1009
(!(pair->flags & GTK_TARGET_SAME_WIDGET) || (source_widget == widget)))
1011
g_list_free (source_targets);
1012
return pair->target;
1017
tmp_source = tmp_source->next;
1019
tmp_target = tmp_target->next;
1022
g_list_free (source_targets);
1026
static GdkDragContext *
1027
gtk_drag_begin_internal (GtkWidget *widget,
1028
GtkDragSourceSite *site,
1029
GtkTargetList *target_list,
1030
GdkDragAction actions,
1034
GtkDragSourceInfo *info;
1035
GdkDragContext *context;
1037
NSPasteboard *pasteboard;
1038
GtkDragSourceOwner *owner;
1042
context = gdk_drag_begin (NULL, NULL);
1043
context->is_source = TRUE;
1045
info = gtk_drag_get_source_info (context, TRUE);
1047
info->widget = gtk_widget_ref (widget);
1048
info->target_list = target_list;
1049
gtk_target_list_ref (target_list);
1051
info->possible_actions = actions;
1053
g_signal_emit_by_name (widget, "drag_begin", info->context);
1055
/* Ensure that we have an icon before we start the drag; the
1056
* application may have set one in ::drag_begin, or it may
1059
if (!info->icon_pixbuf)
1061
if (!site || site->icon_type == GTK_IMAGE_EMPTY)
1062
gtk_drag_set_icon_default (context);
1064
switch (site->icon_type)
1066
case GTK_IMAGE_PIXMAP:
1067
/* This is not supported, so just set a small transparent pixbuf
1068
* since we need to have something.
1071
gtk_drag_set_icon_pixmap (context,
1073
site->icon_data.pixmap.pixmap,
1080
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8, 1, 1);
1081
gdk_pixbuf_fill (pixbuf, 0xffffff);
1083
gtk_drag_set_icon_pixbuf (context,
1087
g_object_unref (pixbuf);
1090
case GTK_IMAGE_PIXBUF:
1091
gtk_drag_set_icon_pixbuf (context,
1092
site->icon_data.pixbuf.pixbuf,
1095
case GTK_IMAGE_STOCK:
1096
gtk_drag_set_icon_stock (context,
1097
site->icon_data.stock.stock_id,
1100
case GTK_IMAGE_ICON_NAME:
1101
gtk_drag_set_icon_name (context,
1102
site->icon_data.name.icon_name,
1105
case GTK_IMAGE_EMPTY:
1107
g_assert_not_reached();
1112
gdk_pointer_ungrab (0);
1114
pasteboard = [NSPasteboard pasteboardWithName:NSDragPboard];
1115
owner = [[GtkDragSourceOwner alloc] initWithInfo:info];
1117
[pasteboard declareTypes:_gtk_quartz_target_list_to_pasteboard_types (target_list) owner:owner];
1119
/* Ref the context. It's unreffed when the drag has been aborted */
1120
g_object_ref (info->context);
1122
nswindow = get_toplevel_nswindow (widget);
1124
/* FIXME: If the event isn't a mouse event, use the global cursor position instead */
1125
nsevent = [nswindow currentEvent];
1126
point = [nsevent locationInWindow];
1128
[nswindow dragImage:_gtk_quartz_create_image_from_pixbuf (info->icon_pixbuf)
1130
offset:NSMakeSize(0, 0)
1132
pasteboard:pasteboard
1136
return info->context;
1140
gtk_drag_begin (GtkWidget *widget,
1141
GtkTargetList *targets,
1142
GdkDragAction actions,
1146
g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
1147
g_return_val_if_fail (GTK_WIDGET_REALIZED (widget), NULL);
1148
g_return_val_if_fail (targets != NULL, NULL);
1150
return gtk_drag_begin_internal (widget, NULL, targets,
1151
actions, button, event);
1156
gtk_drag_source_event_cb (GtkWidget *widget,
1160
GtkDragSourceSite *site;
1161
gboolean retval = FALSE;
1162
site = (GtkDragSourceSite *)data;
1164
switch (event->type)
1166
case GDK_BUTTON_PRESS:
1167
if ((GDK_BUTTON1_MASK << (event->button.button - 1)) & site->start_button_mask)
1169
site->state |= (GDK_BUTTON1_MASK << (event->button.button - 1));
1170
site->x = event->button.x;
1171
site->y = event->button.y;
1175
case GDK_BUTTON_RELEASE:
1176
if ((GDK_BUTTON1_MASK << (event->button.button - 1)) & site->start_button_mask)
1177
site->state &= ~(GDK_BUTTON1_MASK << (event->button.button - 1));
1180
case GDK_MOTION_NOTIFY:
1181
if (site->state & event->motion.state & site->start_button_mask)
1183
/* FIXME: This is really broken and can leave us
1189
if (site->state & event->motion.state &
1190
GDK_BUTTON1_MASK << (i - 1))
1194
if (gtk_drag_check_threshold (widget, site->x, site->y,
1195
event->motion.x, event->motion.y))
1198
gtk_drag_begin_internal (widget, site, site->target_list,
1207
default: /* hit for 2/3BUTTON_PRESS */
1215
gtk_drag_source_set (GtkWidget *widget,
1216
GdkModifierType start_button_mask,
1217
const GtkTargetEntry *targets,
1219
GdkDragAction actions)
1221
GtkDragSourceSite *site;
1223
g_return_if_fail (GTK_IS_WIDGET (widget));
1225
site = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
1227
gtk_widget_add_events (widget,
1228
gtk_widget_get_events (widget) |
1229
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
1230
GDK_BUTTON_MOTION_MASK);
1234
if (site->target_list)
1235
gtk_target_list_unref (site->target_list);
1239
site = g_new0 (GtkDragSourceSite, 1);
1241
site->icon_type = GTK_IMAGE_EMPTY;
1243
g_signal_connect (widget, "button_press_event",
1244
G_CALLBACK (gtk_drag_source_event_cb),
1246
g_signal_connect (widget, "button_release_event",
1247
G_CALLBACK (gtk_drag_source_event_cb),
1249
g_signal_connect (widget, "motion_notify_event",
1250
G_CALLBACK (gtk_drag_source_event_cb),
1253
g_object_set_data_full (G_OBJECT (widget),
1254
I_("gtk-site-data"),
1255
site, gtk_drag_source_site_destroy);
1258
site->start_button_mask = start_button_mask;
1260
site->target_list = gtk_target_list_new (targets, n_targets);
1262
site->actions = actions;
1265
/*************************************************************
1266
* gtk_drag_source_unset
1267
* Unregister this widget as a drag source.
1271
*************************************************************/
1274
gtk_drag_source_unset (GtkWidget *widget)
1276
GtkDragSourceSite *site;
1278
g_return_if_fail (GTK_IS_WIDGET (widget));
1280
site = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
1284
g_signal_handlers_disconnect_by_func (widget,
1285
gtk_drag_source_event_cb,
1287
g_object_set_data (G_OBJECT (widget), I_("gtk-site-data"), NULL);
1292
gtk_drag_source_get_target_list (GtkWidget *widget)
1294
GtkDragSourceSite *site;
1296
g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
1298
site = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
1300
return site ? site->target_list : NULL;
1305
gtk_drag_source_set_target_list (GtkWidget *widget,
1306
GtkTargetList *target_list)
1308
GtkDragSourceSite *site;
1310
g_return_if_fail (GTK_IS_WIDGET (widget));
1312
site = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
1315
g_warning ("gtk_drag_source_set_target_list() requires the widget "
1316
"to already be a drag source.");
1321
gtk_target_list_ref (target_list);
1323
if (site->target_list)
1324
gtk_target_list_unref (site->target_list);
1326
site->target_list = target_list;
1330
* gtk_drag_source_add_text_targets:
1331
* @widget: a #GtkWidget that's is a drag source
1333
* Add the text targets supported by #GtkSelection to
1334
* the target list of the drag source. The targets
1335
* are added with @info = 0. If you need another value,
1336
* use gtk_target_list_add_text_targets() and
1337
* gtk_drag_source_set_target_list().
1342
gtk_drag_source_add_text_targets (GtkWidget *widget)
1344
GtkTargetList *target_list;
1346
target_list = gtk_drag_source_get_target_list (widget);
1348
gtk_target_list_ref (target_list);
1350
target_list = gtk_target_list_new (NULL, 0);
1351
gtk_target_list_add_text_targets (target_list, 0);
1352
gtk_drag_source_set_target_list (widget, target_list);
1353
gtk_target_list_unref (target_list);
1357
gtk_drag_source_add_image_targets (GtkWidget *widget)
1359
GtkTargetList *target_list;
1361
target_list = gtk_drag_source_get_target_list (widget);
1363
gtk_target_list_ref (target_list);
1365
target_list = gtk_target_list_new (NULL, 0);
1366
gtk_target_list_add_image_targets (target_list, 0, TRUE);
1367
gtk_drag_source_set_target_list (widget, target_list);
1368
gtk_target_list_unref (target_list);
1372
gtk_drag_source_add_uri_targets (GtkWidget *widget)
1374
GtkTargetList *target_list;
1376
target_list = gtk_drag_source_get_target_list (widget);
1378
gtk_target_list_ref (target_list);
1380
target_list = gtk_target_list_new (NULL, 0);
1381
gtk_target_list_add_uri_targets (target_list, 0);
1382
gtk_drag_source_set_target_list (widget, target_list);
1383
gtk_target_list_unref (target_list);
1387
gtk_drag_source_unset_icon (GtkDragSourceSite *site)
1389
switch (site->icon_type)
1391
case GTK_IMAGE_EMPTY:
1393
case GTK_IMAGE_PIXMAP:
1394
if (site->icon_data.pixmap.pixmap)
1395
g_object_unref (site->icon_data.pixmap.pixmap);
1396
if (site->icon_mask)
1397
g_object_unref (site->icon_mask);
1399
case GTK_IMAGE_PIXBUF:
1400
g_object_unref (site->icon_data.pixbuf.pixbuf);
1402
case GTK_IMAGE_STOCK:
1403
g_free (site->icon_data.stock.stock_id);
1405
case GTK_IMAGE_ICON_NAME:
1406
g_free (site->icon_data.name.icon_name);
1409
g_assert_not_reached();
1412
site->icon_type = GTK_IMAGE_EMPTY;
1415
g_object_unref (site->colormap);
1416
site->colormap = NULL;
1420
gtk_drag_source_site_destroy (gpointer data)
1422
GtkDragSourceSite *site = data;
1424
if (site->target_list)
1425
gtk_target_list_unref (site->target_list);
1427
gtk_drag_source_unset_icon (site);
1432
gtk_drag_source_set_icon (GtkWidget *widget,
1433
GdkColormap *colormap,
1437
GtkDragSourceSite *site;
1439
g_return_if_fail (GTK_IS_WIDGET (widget));
1440
g_return_if_fail (GDK_IS_COLORMAP (colormap));
1441
g_return_if_fail (GDK_IS_PIXMAP (pixmap));
1442
g_return_if_fail (!mask || GDK_IS_PIXMAP (mask));
1444
site = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
1445
g_return_if_fail (site != NULL);
1447
g_object_ref (colormap);
1448
g_object_ref (pixmap);
1450
g_object_ref (mask);
1452
gtk_drag_source_unset_icon (site);
1454
site->icon_type = GTK_IMAGE_PIXMAP;
1456
site->icon_data.pixmap.pixmap = pixmap;
1457
site->icon_mask = mask;
1458
site->colormap = colormap;
1462
gtk_drag_source_set_icon_pixbuf (GtkWidget *widget,
1465
GtkDragSourceSite *site;
1467
g_return_if_fail (GTK_IS_WIDGET (widget));
1468
g_return_if_fail (GDK_IS_PIXBUF (pixbuf));
1470
site = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
1471
g_return_if_fail (site != NULL);
1472
g_object_ref (pixbuf);
1474
gtk_drag_source_unset_icon (site);
1476
site->icon_type = GTK_IMAGE_PIXBUF;
1477
site->icon_data.pixbuf.pixbuf = pixbuf;
1481
* gtk_drag_source_set_icon_stock:
1482
* @widget: a #GtkWidget
1483
* @stock_id: the ID of the stock icon to use
1485
* Sets the icon that will be used for drags from a particular source
1489
gtk_drag_source_set_icon_stock (GtkWidget *widget,
1490
const gchar *stock_id)
1492
GtkDragSourceSite *site;
1494
g_return_if_fail (GTK_IS_WIDGET (widget));
1495
g_return_if_fail (stock_id != NULL);
1497
site = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
1498
g_return_if_fail (site != NULL);
1500
gtk_drag_source_unset_icon (site);
1502
site->icon_type = GTK_IMAGE_STOCK;
1503
site->icon_data.stock.stock_id = g_strdup (stock_id);
1507
* gtk_drag_source_set_icon_name:
1508
* @widget: a #GtkWidget
1509
* @icon_name: name of icon to use
1511
* Sets the icon that will be used for drags from a particular source
1512
* to a themed icon. See the docs for #GtkIconTheme for more details.
1517
gtk_drag_source_set_icon_name (GtkWidget *widget,
1518
const gchar *icon_name)
1520
GtkDragSourceSite *site;
1522
g_return_if_fail (GTK_IS_WIDGET (widget));
1523
g_return_if_fail (icon_name != NULL);
1525
site = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
1526
g_return_if_fail (site != NULL);
1528
gtk_drag_source_unset_icon (site);
1530
site->icon_type = GTK_IMAGE_ICON_NAME;
1531
site->icon_data.name.icon_name = g_strdup (icon_name);
1536
* gtk_drag_set_icon_widget:
1537
* @context: the context for a drag. (This must be called
1538
with a context for the source side of a drag)
1539
* @widget: a toplevel window to use as an icon.
1540
* @hot_x: the X offset within @widget of the hotspot.
1541
* @hot_y: the Y offset within @widget of the hotspot.
1543
* Changes the icon for a widget to a given widget. GTK+
1544
* will not destroy the icon, so if you don't want
1545
* it to persist, you should connect to the "drag_end"
1546
* signal and destroy it yourself.
1549
gtk_drag_set_icon_widget (GdkDragContext *context,
1554
g_return_if_fail (GDK_IS_DRAG_CONTEXT (context));
1555
g_return_if_fail (context->is_source);
1556
g_return_if_fail (GTK_IS_WIDGET (widget));
1558
g_warning ("gtk_drag_set_icon_widget is not supported on Mac OS X");
1562
set_icon_stock_pixbuf (GdkDragContext *context,
1563
const gchar *stock_id,
1568
GtkDragSourceInfo *info;
1570
info = gtk_drag_get_source_info (context, FALSE);
1574
pixbuf = gtk_widget_render_icon (info->widget, stock_id,
1575
GTK_ICON_SIZE_DND, NULL);
1579
g_warning ("Cannot load drag icon from stock_id %s", stock_id);
1584
g_object_ref (pixbuf);
1586
if (info->icon_pixbuf)
1587
g_object_unref (info->icon_pixbuf);
1588
info->icon_pixbuf = pixbuf;
1589
info->hot_x = hot_x;
1590
info->hot_y = hot_y;
1594
* gtk_drag_set_icon_pixbuf:
1595
* @context: the context for a drag. (This must be called
1596
* with a context for the source side of a drag)
1597
* @pixbuf: the #GdkPixbuf to use as the drag icon.
1598
* @hot_x: the X offset within @widget of the hotspot.
1599
* @hot_y: the Y offset within @widget of the hotspot.
1601
* Sets @pixbuf as the icon for a given drag.
1604
gtk_drag_set_icon_pixbuf (GdkDragContext *context,
1609
g_return_if_fail (GDK_IS_DRAG_CONTEXT (context));
1610
g_return_if_fail (context->is_source);
1611
g_return_if_fail (GDK_IS_PIXBUF (pixbuf));
1613
set_icon_stock_pixbuf (context, NULL, pixbuf, hot_x, hot_y);
1617
* gtk_drag_set_icon_stock:
1618
* @context: the context for a drag. (This must be called
1619
* with a context for the source side of a drag)
1620
* @stock_id: the ID of the stock icon to use for the drag.
1621
* @hot_x: the X offset within the icon of the hotspot.
1622
* @hot_y: the Y offset within the icon of the hotspot.
1624
* Sets the icon for a given drag from a stock ID.
1627
gtk_drag_set_icon_stock (GdkDragContext *context,
1628
const gchar *stock_id,
1633
g_return_if_fail (GDK_IS_DRAG_CONTEXT (context));
1634
g_return_if_fail (context->is_source);
1635
g_return_if_fail (stock_id != NULL);
1637
set_icon_stock_pixbuf (context, stock_id, NULL, hot_x, hot_y);
1641
* gtk_drag_set_icon_pixmap:
1642
* @context: the context for a drag. (This must be called
1643
* with a context for the source side of a drag)
1644
* @colormap: the colormap of the icon
1645
* @pixmap: the image data for the icon
1646
* @mask: the transparency mask for the icon
1647
* @hot_x: the X offset within @pixmap of the hotspot.
1648
* @hot_y: the Y offset within @pixmap of the hotspot.
1650
* Sets @pixmap as the icon for a given drag. GTK+ retains
1651
* references for the arguments, and will release them when
1652
* they are no longer needed. In general, gtk_drag_set_icon_pixbuf()
1653
* will be more convenient to use.
1656
gtk_drag_set_icon_pixmap (GdkDragContext *context,
1657
GdkColormap *colormap,
1663
g_warning ("gtk_drag_set_icon_pixmap is not supported on Mac OS X");
1667
* gtk_drag_set_icon_name:
1668
* @context: the context for a drag. (This must be called
1669
* with a context for the source side of a drag)
1670
* @icon_name: name of icon to use
1671
* @hot_x: the X offset of the hotspot within the icon
1672
* @hot_y: the Y offset of the hotspot within the icon
1674
* Sets the icon for a given drag from a named themed icon. See
1675
* the docs for #GtkIconTheme for more details. Note that the
1676
* size of the icon depends on the icon theme (the icon is
1677
* loaded at the symbolic size #GTK_ICON_SIZE_DND), thus
1678
* @hot_x and @hot_y have to be used with care.
1683
gtk_drag_set_icon_name (GdkDragContext *context,
1684
const gchar *icon_name,
1689
GtkSettings *settings;
1690
GtkIconTheme *icon_theme;
1692
gint width, height, icon_size;
1694
g_return_if_fail (GDK_IS_DRAG_CONTEXT (context));
1695
g_return_if_fail (context->is_source);
1696
g_return_if_fail (icon_name != NULL);
1698
screen = gdk_drawable_get_screen (context->source_window);
1699
g_return_if_fail (screen != NULL);
1701
settings = gtk_settings_get_for_screen (screen);
1702
if (gtk_icon_size_lookup_for_settings (settings,
1705
icon_size = MAX (width, height);
1707
icon_size = 32; /* default value for GTK_ICON_SIZE_DND */
1709
icon_theme = gtk_icon_theme_get_for_screen (screen);
1711
pixbuf = gtk_icon_theme_load_icon (icon_theme, icon_name,
1712
icon_size, 0, NULL);
1714
set_icon_stock_pixbuf (context, NULL, pixbuf, hot_x, hot_y);
1716
g_warning ("Cannot load drag icon from icon name %s", icon_name);
1720
* gtk_drag_set_icon_default:
1721
* @context: the context for a drag. (This must be called
1722
with a context for the source side of a drag)
1724
* Sets the icon for a particular drag to the default
1728
gtk_drag_set_icon_default (GdkDragContext *context)
1730
g_return_if_fail (GDK_IS_DRAG_CONTEXT (context));
1731
g_return_if_fail (context->is_source);
1733
gtk_drag_set_icon_stock (context, GTK_STOCK_DND, -2, -2);
1737
gtk_drag_set_default_icon (GdkColormap *colormap,
1743
g_warning ("gtk_drag_set_default_icon is not supported on Mac OS X.");
1747
gtk_drag_source_info_destroy (GtkDragSourceInfo *info)
1749
if (info->icon_pixbuf)
1750
g_object_unref (info->icon_pixbuf);
1752
g_signal_emit_by_name (info->widget, "drag_end",
1756
g_object_unref (info->widget);
1758
gtk_target_list_unref (info->target_list);
1760
gtk_drag_clear_source_info (info->context);
1761
g_object_unref (info->context);
1767
gtk_drag_drop_finished (GtkDragSourceInfo *info)
1769
gtk_drag_source_info_destroy (info);
1772
/*************************************************************
1773
* _gtk_drag_source_handle_event:
1774
* Called from widget event handling code on Drag events
1778
* toplevel: Toplevel widget that received the event
1781
*************************************************************/
1784
_gtk_drag_source_handle_event (GtkWidget *widget,
1787
GtkDragSourceInfo *info;
1788
GdkDragContext *context;
1790
g_return_if_fail (widget != NULL);
1791
g_return_if_fail (event != NULL);
1793
context = event->dnd.context;
1794
info = gtk_drag_get_source_info (context, FALSE);
1798
switch (event->type)
1800
case GDK_DROP_FINISHED:
1801
gtk_drag_drop_finished (info);
1804
g_assert_not_reached ();
1810
gtk_drag_check_threshold (GtkWidget *widget,
1816
gint drag_threshold;
1818
g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
1820
g_object_get (gtk_widget_get_settings (widget),
1821
"gtk-dnd-drag-threshold", &drag_threshold,
1824
return (ABS (current_x - start_x) > drag_threshold ||
1825
ABS (current_y - start_y) > drag_threshold);
1828
#define __GTK_DND_C__
1829
#include "gtkaliasdef.c"