+++ /dev/null
-/* GTK - The GIMP Toolkit
- * Copyright (C) 1995-1999 Peter Mattis, Spencer Kimball and Josh MacDonald
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library. If not, see <http://www.gnu.org/licenses/>.
- */
-
-/*
- * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
- * file for a list of people on the GTK+ Team. See the ChangeLog
- * files for a list of changes. These files are distributed with
- * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
- */
-
-#include "config.h"
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "gdk/gdk.h"
-
-#include "gtkdnd.h"
-#include "gtkdndprivate.h"
-#include "gtkicontheme.h"
-#include "gtkimageprivate.h"
-#include "gtkinvisible.h"
-#include "gtkmain.h"
-#include "gtkwindow.h"
-#include "gtkintl.h"
-#include "gtkquartz.h"
-#include "gdk/quartz/gdkquartz.h"
-#include "gtkselectionprivate.h"
-#include "gtksettings.h"
-#include "gtkiconhelperprivate.h"
-
-typedef struct _GtkDragSourceInfo GtkDragSourceInfo;
-typedef struct _GtkDragDestInfo GtkDragDestInfo;
-typedef struct _GtkDragFindData GtkDragFindData;
-
-static void gtk_drag_find_widget (GtkWidget *widget,
- GtkDragFindData *data);
-static void gtk_drag_dest_site_destroy (gpointer data);
-static void gtk_drag_dest_leave (GtkWidget *widget,
- GdkDragContext *context,
- guint time);
-static GtkDragDestInfo *gtk_drag_get_dest_info (GdkDragContext *context,
- gboolean create);
-static void gtk_drag_source_site_destroy (gpointer data);
-
-static GtkDragSourceInfo *gtk_drag_get_source_info (GdkDragContext *context,
- gboolean create);
-
-static void gtk_drag_drop_finished (GtkDragSourceInfo *info,
- GtkDragResult result);
-
-struct _GtkDragSourceInfo
-{
- GtkWidget *source_widget;
- GtkWidget *widget;
- GtkTargetList *target_list; /* Targets for drag data */
- GdkDragAction possible_actions; /* Actions allowed by source */
- GdkDragContext *context; /* drag context */
- NSEvent *nsevent; /* what started it */
- gint hot_x, hot_y; /* Hot spot for drag */
- cairo_surface_t *icon_surface;
- gboolean success;
- gboolean delete;
-};
-
-struct _GtkDragDestInfo
-{
- GtkWidget *widget; /* Widget in which drag is in */
- GdkDragContext *context; /* Drag context */
- guint dropped : 1; /* Set after we receive a drop */
- gint drop_x, drop_y; /* Position of drop */
-};
-
-struct _GtkDragFindData
-{
- gint x;
- gint y;
- GdkDragContext *context;
- GtkDragDestInfo *info;
- gboolean found;
- gboolean toplevel;
- gboolean (*callback) (GtkWidget *widget, GdkDragContext *context,
- gint x, gint y, guint32 time);
- guint32 time;
-};
-
-
-@interface GtkDragSourceOwner : NSObject {
- GtkDragSourceInfo *info;
-}
-
-@end
-
-@implementation GtkDragSourceOwner
--(void)pasteboard:(NSPasteboard *)sender provideDataForType:(NSString *)type
-{
- GtkSelectionData selection_data;
-
- selection_data.selection = NULL;
- selection_data.data = NULL;
- selection_data.length = -1;
- selection_data.target = gdk_quartz_pasteboard_type_to_atom_libgtk_only (type);
- selection_data.display = gdk_display_get_default ();
-
- if (gtk_target_list_find (info->target_list,
- selection_data.target))
- {
- g_signal_emit_by_name (info->widget, "drag-data-get",
- info->context,
- &selection_data,
- time);
-
- if (selection_data.length >= 0)
- _gtk_quartz_set_selection_data_for_pasteboard (sender, &selection_data);
-
- g_free (selection_data.data);
- }
-}
-
-- (id)initWithInfo:(GtkDragSourceInfo *)anInfo
-{
- self = [super init];
-
- if (self)
- {
- info = anInfo;
- }
-
- return self;
-}
-
-@end
-
-/**
- * gtk_drag_get_data: (method)
- * @widget: the widget that will receive the
- * #GtkWidget::drag-data-received signal.
- * @context: the drag context
- * @target: the target (form of the data) to retrieve.
- * @time_: a timestamp for retrieving the data. This will
- * generally be the time received in a #GtkWidget::drag-motion"
- * or #GtkWidget::drag-drop" signal.
- */
-void
-gtk_drag_get_data (GtkWidget *widget,
- GdkDragContext *context,
- GdkAtom target,
- guint32 time)
-{
- id <NSDraggingInfo> dragging_info;
- NSPasteboard *pasteboard;
- GtkSelectionData *selection_data;
- GtkDragDestInfo *info;
- GtkDragDestSite *site;
-
- dragging_info = gdk_quartz_drag_context_get_dragging_info_libgtk_only (context);
- pasteboard = [dragging_info draggingPasteboard];
-
- info = gtk_drag_get_dest_info (context, FALSE);
- site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
-
- selection_data = _gtk_quartz_get_selection_data_from_pasteboard (pasteboard,
- target, 0);
-
- if (site && site->target_list)
- {
- guint target_info;
-
- if (gtk_target_list_find (site->target_list,
- selection_data->target,
- &target_info))
- {
- if (!(site->flags & GTK_DEST_DEFAULT_DROP) ||
- selection_data->length >= 0)
- g_signal_emit_by_name (widget,
- "drag-data-received",
- context, info->drop_x, info->drop_y,
- selection_data,
- target_info, time);
- }
- }
- else
- {
- g_signal_emit_by_name (widget,
- "drag-data-received",
- context, info->drop_x, info->drop_y,
- selection_data,
- 0, time);
- }
-
- if (site && site->flags & GTK_DEST_DEFAULT_DROP)
- {
- gtk_drag_finish (context,
- (selection_data->length >= 0),
- (gdk_drag_context_get_selected_action (context) == GDK_ACTION_MOVE),
- time);
- }
-}
-
-/**
- * gtk_drag_finish: (method)
- * @context: the drag context.
- * @success: a flag indicating whether the drop was successful
- * @del: a flag indicating whether the source should delete the
- * original data. (This should be %TRUE for a move)
- * @time_: the timestamp from the #GtkWidget::drag-drop signal.
- */
-void
-gtk_drag_finish (GdkDragContext *context,
- gboolean success,
- gboolean del,
- guint32 time)
-{
- GtkDragSourceInfo *info;
- GdkDragContext* source_context = gdk_quartz_drag_source_context_libgtk_only ();
-
- if (source_context)
- {
- info = gtk_drag_get_source_info (source_context, FALSE);
- if (info)
- {
- info->success = success;
- info->delete = del;
- }
- }
-}
-
-static void
-gtk_drag_dest_info_destroy (gpointer data)
-{
- GtkDragDestInfo *info = data;
-
- g_free (info);
-}
-
-static GtkDragDestInfo *
-gtk_drag_get_dest_info (GdkDragContext *context,
- gboolean create)
-{
- GtkDragDestInfo *info;
- static GQuark info_quark = 0;
- if (!info_quark)
- info_quark = g_quark_from_static_string ("gtk-dest-info");
-
- info = g_object_get_qdata (G_OBJECT (context), info_quark);
- if (!info && create)
- {
- info = g_new (GtkDragDestInfo, 1);
- info->widget = NULL;
- info->context = context;
- info->dropped = FALSE;
- g_object_set_qdata_full (G_OBJECT (context), info_quark,
- info, gtk_drag_dest_info_destroy);
- }
-
- return info;
-}
-
-static GQuark dest_info_quark = 0;
-
-static GtkDragSourceInfo *
-gtk_drag_get_source_info (GdkDragContext *context,
- gboolean create)
-{
- GtkDragSourceInfo *info;
-
- if (!dest_info_quark)
- dest_info_quark = g_quark_from_static_string ("gtk-source-info");
-
- info = g_object_get_qdata (G_OBJECT (context), dest_info_quark);
- if (!info && create)
- {
- info = g_new0 (GtkDragSourceInfo, 1);
- info->context = context;
- g_object_set_qdata (G_OBJECT (context), dest_info_quark, info);
- }
-
- return info;
-}
-
-static void
-gtk_drag_clear_source_info (GdkDragContext *context)
-{
- g_object_set_qdata (G_OBJECT (context), dest_info_quark, NULL);
-}
-
-/**
- * gtk_drag_get_source_widget: (method)
- * @context: a (destination side) drag context
- *
- * Returns: (transfer none):
- */
-GtkWidget *
-gtk_drag_get_source_widget (GdkDragContext *context)
-{
- GtkDragSourceInfo *info;
- GdkDragContext* real_source_context = gdk_quartz_drag_source_context_libgtk_only ();
-
- if (!real_source_context)
- return NULL;
-
- info = gtk_drag_get_source_info (real_source_context, FALSE);
- if (!info)
- return NULL;
-
- return info->source_widget;
-}
-
-/**
- * gtk_drag_highlight: (method)
- * @widget: a widget to highlight
- */
-void
-gtk_drag_highlight (GtkWidget *widget)
-{
- g_return_if_fail (GTK_IS_WIDGET (widget));
-
- gtk_widget_set_state_flags (widget, GTK_STATE_FLAG_DROP_ACTIVE, FALSE);
-}
-
-/**
- * gtk_drag_unhighlight: (method)
- * @widget: a widget to remove the highlight from.
- */
-void
-gtk_drag_unhighlight (GtkWidget *widget)
-{
- g_return_if_fail (GTK_IS_WIDGET (widget));
-
- gtk_widget_unset_state_flags (widget, GTK_STATE_FLAG_DROP_ACTIVE);
-}
-
-static NSWindow *
-get_toplevel_nswindow (GtkWidget *widget)
-{
- GtkWidget *toplevel = gtk_widget_get_toplevel (widget);
- GdkSurface *surface = gtk_widget_get_surface (toplevel);
-
- if (gtk_widget_is_toplevel (toplevel) && surface)
- return [gdk_quartz_surface_get_nsview (surface) surface];
- else
- return NULL;
-}
-
-static void
-register_types (GtkWidget *widget, GtkDragDestSite *site)
-{
- if (site->target_list)
- {
- NSWindow *nswindow = get_toplevel_nswindow (widget);
- NSSet *types;
- NSAutoreleasePool *pool;
-
- if (!nswindow)
- return;
-
- pool = [[NSAutoreleasePool alloc] init];
- types = _gtk_quartz_target_list_to_pasteboard_types (site->target_list);
-
- [nswindow registerForDraggedTypes:[types allObjects]];
-
- [types release];
- [pool release];
- }
-}
-
-static void
-gtk_drag_dest_realized (GtkWidget *widget,
- gpointer user_data)
-{
- GtkDragDestSite *site = user_data;
-
- register_types (widget, site);
-}
-
-static void
-gtk_drag_dest_hierarchy_changed (GtkWidget *widget,
- GtkWidget *previous_toplevel,
- gpointer user_data)
-{
- GtkDragDestSite *site = user_data;
-
- register_types (widget, site);
-}
-
-static void
-gtk_drag_dest_site_destroy (gpointer data)
-{
- GtkDragDestSite *site = data;
-
- if (site->target_list)
- gtk_target_list_unref (site->target_list);
-
- g_free (site);
-}
-
-/**
- * gtk_drag_dest_set: (method)
- * @widget: a #GtkWidget
- * @flags: which types of default drag behavior to use
- * @targets: (allow-none) (array length=n_targets): a pointer to an array of #GtkTargetEntrys
- * indicating the drop types that this @widget will accept, or %NULL.
- * Later you can access the list with gtk_drag_dest_get_target_list()
- * and gtk_drag_dest_find_target().
- * @n_targets: the number of entries in @targets
- * @actions: a bitmask of possible actions for a drop onto this @widget.
- */
-void
-gtk_drag_dest_set (GtkWidget *widget,
- GtkDestDefaults flags,
- const GtkTargetEntry *targets,
- gint n_targets,
- GdkDragAction actions)
-{
- GtkDragDestSite *old_site, *site;
-
- g_return_if_fail (GTK_IS_WIDGET (widget));
-
- old_site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
-
- site = g_new (GtkDragDestSite, 1);
- site->flags = flags;
- site->have_drag = FALSE;
- if (targets)
- site->target_list = gtk_target_list_new (targets, n_targets);
- else
- site->target_list = NULL;
- site->actions = actions;
-
- if (old_site)
- site->track_motion = old_site->track_motion;
- else
- site->track_motion = FALSE;
-
- gtk_drag_dest_unset (widget);
-
- if (gtk_widget_get_realized (widget))
- gtk_drag_dest_realized (widget, site);
-
- g_signal_connect (widget, "realize",
- G_CALLBACK (gtk_drag_dest_realized), site);
- g_signal_connect (widget, "hierarchy-changed",
- G_CALLBACK (gtk_drag_dest_hierarchy_changed), site);
-
- g_object_set_data_full (G_OBJECT (widget), I_("gtk-drag-dest"),
- site, gtk_drag_dest_site_destroy);
-}
-
-/**
- * gtk_drag_dest_unset: (method)
- * @widget: a #GtkWidget
- */
-void
-gtk_drag_dest_unset (GtkWidget *widget)
-{
- GtkDragDestSite *old_site;
-
- g_return_if_fail (GTK_IS_WIDGET (widget));
-
- old_site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
- if (old_site)
- {
- g_signal_handlers_disconnect_by_func (widget,
- gtk_drag_dest_realized,
- old_site);
- g_signal_handlers_disconnect_by_func (widget,
- gtk_drag_dest_hierarchy_changed,
- old_site);
- }
-
- g_object_set_data (G_OBJECT (widget), I_("gtk-drag-dest"), NULL);
-}
-
-/**
- * gtk_drag_dest_get_target_list: (method)
- * @widget: a #GtkWidget
- */
-GtkTargetList*
-gtk_drag_dest_get_target_list (GtkWidget *widget)
-{
- GtkDragDestSite *site;
-
- g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
-
- site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
-
- return site ? site->target_list : NULL;
-}
-
-/**
- * gtk_drag_dest_set_target_list: (method)
- * @widget: a #GtkWidget that’s a drag destination
- * @target_list: (allow-none): list of droppable targets, or %NULL for none
- */
-void
-gtk_drag_dest_set_target_list (GtkWidget *widget,
- GtkTargetList *target_list)
-{
- GtkDragDestSite *site;
-
- g_return_if_fail (GTK_IS_WIDGET (widget));
-
- site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
-
- if (!site)
- {
- g_warning ("Can't set a target list on a widget until you've called gtk_drag_dest_set() "
- "to make the widget into a drag destination");
- return;
- }
-
- if (target_list)
- gtk_target_list_ref (target_list);
-
- if (site->target_list)
- gtk_target_list_unref (site->target_list);
-
- site->target_list = target_list;
-
- register_types (widget, site);
-}
-
-/**
- * gtk_drag_dest_add_text_targets: (method)
- * @widget: a #GtkWidget that’s a drag destination
- */
-void
-gtk_drag_dest_add_text_targets (GtkWidget *widget)
-{
- GtkTargetList *target_list;
-
- target_list = gtk_drag_dest_get_target_list (widget);
- if (target_list)
- gtk_target_list_ref (target_list);
- else
- target_list = gtk_target_list_new (NULL, 0);
- gtk_target_list_add_text_targets (target_list, 0);
- gtk_drag_dest_set_target_list (widget, target_list);
- gtk_target_list_unref (target_list);
-}
-
-
-/**
- * gtk_drag_dest_add_image_targets: (method)
- * @widget: a #GtkWidget that’s a drag destination
- */
-void
-gtk_drag_dest_add_image_targets (GtkWidget *widget)
-{
- GtkTargetList *target_list;
-
- target_list = gtk_drag_dest_get_target_list (widget);
- if (target_list)
- gtk_target_list_ref (target_list);
- else
- target_list = gtk_target_list_new (NULL, 0);
- gtk_target_list_add_image_targets (target_list, 0, FALSE);
- gtk_drag_dest_set_target_list (widget, target_list);
- gtk_target_list_unref (target_list);
-}
-
-/**
- * gtk_drag_dest_add_uri_targets: (method)
- * @widget: a #GtkWidget that’s a drag destination
- */
-void
-gtk_drag_dest_add_uri_targets (GtkWidget *widget)
-{
- GtkTargetList *target_list;
-
- target_list = gtk_drag_dest_get_target_list (widget);
- if (target_list)
- gtk_target_list_ref (target_list);
- else
- target_list = gtk_target_list_new (NULL, 0);
- gtk_target_list_add_uri_targets (target_list, 0);
- gtk_drag_dest_set_target_list (widget, target_list);
- gtk_target_list_unref (target_list);
-}
-
-static void
-prepend_and_ref_widget (GtkWidget *widget,
- gpointer data)
-{
- GSList **slist_p = data;
-
- *slist_p = g_slist_prepend (*slist_p, g_object_ref (widget));
-}
-
-static void
-gtk_drag_find_widget (GtkWidget *widget,
- GtkDragFindData *data)
-{
- GtkAllocation new_allocation;
- gint allocation_to_window_x = 0;
- gint allocation_to_window_y = 0;
- gint x_offset = 0;
- gint y_offset = 0;
-
- if (data->found || !gtk_widget_get_mapped (widget) || !gtk_widget_get_sensitive (widget))
- return;
-
- /* Note that in the following code, we only count the
- * position as being inside a WINDOW widget if it is inside
- * widget->window; points that are outside of widget->window
- * but within the allocation are not counted. This is consistent
- * with the way we highlight drag targets.
- *
- * data->x,y are relative to widget->parent->window (if
- * widget is not a toplevel, widget->window otherwise).
- * We compute the allocation of widget in the same coordinates,
- * clipping to widget->window, and all intermediate
- * windows. If data->x,y is inside that, then we translate
- * our coordinates to be relative to widget->window and
- * recurse.
- */
- gtk_widget_get_allocation (widget, &new_allocation);
-
- if (gtk_widget_get_parent (widget))
- {
- gint tx, ty;
- GdkSurface *surface = gtk_widget_get_surface (widget);
- GdkSurface *parent_surface;
- GtkAllocation allocation;
-
- parent_surface = gtk_widget_get_surface (gtk_widget_get_parent (widget));
-
- /* Compute the offset from allocation-relative to
- * surface-relative coordinates.
- */
- gtk_widget_get_allocation (widget, &allocation);
- allocation_to_surface_x = allocation.x;
- allocation_to_surface_y = allocation.y;
-
- if (gtk_widget_get_has_surface (widget))
- {
- /* The allocation is relative to the parent surface for
- * surface widgets, not to widget->surface.
- */
- gdk_surface_get_position (surface, &tx, &ty);
-
- allocation_to_surface_x -= tx;
- allocation_to_surface_y -= ty;
- }
-
- new_allocation.x = 0 + allocation_to_surface_x;
- new_allocation.y = 0 + allocation_to_surface_y;
-
- while (surface && surface != parent_surface)
- {
- GdkRectangle surface_rect = { 0, 0, 0, 0 };
-
- surface_rect.width = gdk_surface_get_width (surface);
- surface_rect.height = gdk_surface_get_height (surface);
-
- gdk_rectangle_intersect (&new_allocation, &surface_rect, &new_allocation);
-
- gdk_surface_get_position (surface, &tx, &ty);
- new_allocation.x += tx;
- x_offset += tx;
- new_allocation.y += ty;
- y_offset += ty;
-
- surface = gdk_surface_get_parent (surface);
- }
-
- if (!surface) /* Surface and widget heirarchies didn't match. */
- return;
- }
-
- if (data->toplevel ||
- ((data->x >= new_allocation.x) && (data->y >= new_allocation.y) &&
- (data->x < new_allocation.x + new_allocation.width) &&
- (data->y < new_allocation.y + new_allocation.height)))
- {
- /* First, check if the drag is in a valid drop site in
- * one of our children
- */
- if (GTK_IS_CONTAINER (widget))
- {
- GtkDragFindData new_data = *data;
- GSList *children = NULL;
- GSList *tmp_list;
-
- new_data.x -= x_offset;
- new_data.y -= y_offset;
- new_data.found = FALSE;
- new_data.toplevel = FALSE;
-
- /* need to reference children temporarily in case the
- * ::drag-motion/::drag-drop callbacks change the widget hierarchy.
- */
- gtk_container_forall (GTK_CONTAINER (widget), prepend_and_ref_widget, &children);
- for (tmp_list = children; tmp_list; tmp_list = tmp_list->next)
- {
- if (!new_data.found && gtk_widget_is_drawable (tmp_list->data))
- gtk_drag_find_widget (tmp_list->data, &new_data);
- g_object_unref (tmp_list->data);
- }
- g_slist_free (children);
-
- data->found = new_data.found;
- }
-
- /* If not, and this widget is registered as a drop site, check to
- * emit "drag-motion" to check if we are actually in
- * a drop site.
- */
- if (!data->found &&
- g_object_get_data (G_OBJECT (widget), "gtk-drag-dest"))
- {
- data->found = data->callback (widget,
- data->context,
- data->x - x_offset - allocation_to_surface_x,
- data->y - y_offset - allocation_to_surface_y,
- data->time);
- /* If so, send a "drag-leave" to the last widget */
- if (data->found)
- {
- if (data->info->widget && data->info->widget != widget)
- {
- gtk_drag_dest_leave (data->info->widget, data->context, data->time);
- }
- data->info->widget = widget;
- }
- }
- }
-}
-
-static void
-gtk_drag_dest_leave (GtkWidget *widget,
- GdkDragContext *context,
- guint time)
-{
- GtkDragDestSite *site;
-
- site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
- g_return_if_fail (site != NULL);
-
- if ((site->flags & GTK_DEST_DEFAULT_HIGHLIGHT) && site->have_drag)
- gtk_drag_unhighlight (widget);
-
- if (!(site->flags & GTK_DEST_DEFAULT_MOTION) || site->have_drag ||
- site->track_motion)
- g_signal_emit_by_name (widget, "drag-leave", context, time);
-
- site->have_drag = FALSE;
-}
-
-static gboolean
-gtk_drag_dest_motion (GtkWidget *widget,
- GdkDragContext *context,
- gint x,
- gint y,
- guint time)
-{
- GtkDragDestSite *site;
- GdkDragAction action = 0;
- gboolean retval;
-
- site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
- g_return_val_if_fail (site != NULL, FALSE);
-
- if (site->track_motion || site->flags & GTK_DEST_DEFAULT_MOTION)
- {
- if (gdk_drag_context_get_suggested_action (context) & site->actions)
- action = gdk_drag_context_get_suggested_action (context);
-
- if (action && gtk_drag_dest_find_target (widget, context, NULL))
- {
- if (!site->have_drag)
- {
- site->have_drag = TRUE;
- if (site->flags & GTK_DEST_DEFAULT_HIGHLIGHT)
- gtk_drag_highlight (widget);
- }
-
- gdk_drag_status (context, action, time);
- }
- else
- {
- gdk_drag_status (context, 0, time);
- if (!site->track_motion)
- return TRUE;
- }
- }
-
- g_signal_emit_by_name (widget, "drag-motion",
- context, x, y, time, &retval);
-
- return (site->flags & GTK_DEST_DEFAULT_MOTION) ? TRUE : retval;
-}
-
-static gboolean
-gtk_drag_dest_drop (GtkWidget *widget,
- GdkDragContext *context,
- gint x,
- gint y,
- guint time)
-{
- GtkDragDestSite *site;
- GtkDragDestInfo *info;
- gboolean retval;
-
- site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
- g_return_val_if_fail (site != NULL, FALSE);
-
- info = gtk_drag_get_dest_info (context, FALSE);
- g_return_val_if_fail (info != NULL, FALSE);
-
- info->drop_x = x;
- info->drop_y = y;
-
- if (site->flags & GTK_DEST_DEFAULT_DROP)
- {
- GdkAtom target = gtk_drag_dest_find_target (widget, context, NULL);
-
- if (target == NULL)
- {
- gtk_drag_finish (context, FALSE, FALSE, time);
- return TRUE;
- }
- else
- gtk_drag_get_data (widget, context, target, time);
- }
-
- g_signal_emit_by_name (widget, "drag-drop",
- context, x, y, time, &retval);
-
- return (site->flags & GTK_DEST_DEFAULT_DROP) ? TRUE : retval;
-}
-
-/**
- * gtk_drag_dest_set_track_motion: (method)
- * @widget: a #GtkWidget that’s a drag destination
- * @track_motion: whether to accept all targets
- */
-void
-gtk_drag_dest_set_track_motion (GtkWidget *widget,
- gboolean track_motion)
-{
- GtkDragDestSite *site;
-
- g_return_if_fail (GTK_IS_WIDGET (widget));
-
- site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
-
- g_return_if_fail (site != NULL);
-
- site->track_motion = track_motion != FALSE;
-}
-
-/**
- * gtk_drag_dest_get_track_motion: (method)
- * @widget: a #GtkWidget that’s a drag destination
- */
-gboolean
-gtk_drag_dest_get_track_motion (GtkWidget *widget)
-{
- GtkDragDestSite *site;
-
- g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
-
- site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
-
- if (site)
- return site->track_motion;
-
- return FALSE;
-}
-
-void
-_gtk_drag_dest_handle_event (GtkWidget *toplevel,
- GdkEvent *event)
-{
- GtkDragDestInfo *info;
- GdkDragContext *context;
-
- g_return_if_fail (toplevel != NULL);
- g_return_if_fail (event != NULL);
-
- context = event->dnd.context;
-
- info = gtk_drag_get_dest_info (context, TRUE);
-
- /* Find the widget for the event */
- switch (event->type)
- {
- case GDK_DRAG_ENTER:
- break;
-
- case GDK_DRAG_LEAVE:
- if (info->widget)
- {
- gtk_drag_dest_leave (info->widget, context, event->dnd.time);
- info->widget = NULL;
- }
- break;
-
- case GDK_DRAG_MOTION:
- case GDK_DROP_START:
- {
- GtkDragFindData data;
- gint tx, ty;
-
- if (event->type == GDK_DROP_START)
- {
- info->dropped = TRUE;
- /* We send a leave here so that the widget unhighlights
- * properly.
- */
- if (info->widget)
- {
- gtk_drag_dest_leave (info->widget, context, event->dnd.time);
- info->widget = NULL;
- }
- }
-
- gdk_surface_get_position (gtk_widget_get_surface (toplevel), &tx, &ty);
-
- data.x = event->dnd.x_root - tx;
- data.y = event->dnd.y_root - ty;
- data.context = context;
- data.info = info;
- data.found = FALSE;
- data.toplevel = TRUE;
- data.callback = (event->type == GDK_DRAG_MOTION) ?
- gtk_drag_dest_motion : gtk_drag_dest_drop;
- data.time = event->dnd.time;
-
- gtk_drag_find_widget (toplevel, &data);
-
- if (info->widget && !data.found)
- {
- gtk_drag_dest_leave (info->widget, context, event->dnd.time);
- info->widget = NULL;
- }
-
- /* Send a reply.
- */
- if (event->type == GDK_DRAG_MOTION)
- {
- if (!data.found)
- gdk_drag_status (context, 0, event->dnd.time);
- }
-
- break;
- default:
- g_assert_not_reached ();
- }
- }
-}
-
-
-/**
- * gtk_drag_dest_find_target: (method)
- * @widget: drag destination widget
- * @context: drag context
- * @target_list: (allow-none): list of droppable targets, or %NULL to use
- * gtk_drag_dest_get_target_list (@widget).
- *
- * Returns: (transfer none):
- */
-GdkAtom
-gtk_drag_dest_find_target (GtkWidget *widget,
- GdkDragContext *context,
- GtkTargetList *target_list)
-{
- id <NSDraggingInfo> dragging_info;
- NSPasteboard *pasteboard;
- GtkWidget *source_widget;
- GList *tmp_target;
- GList *tmp_source = NULL;
- GList *source_targets;
-
- g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
- g_return_val_if_fail (GDK_IS_DRAG_CONTEXT (context), NULL);
-
- dragging_info = gdk_quartz_drag_context_get_dragging_info_libgtk_only (context);
- pasteboard = [dragging_info draggingPasteboard];
-
- source_widget = gtk_drag_get_source_widget (context);
-
- if (target_list == NULL)
- target_list = gtk_drag_dest_get_target_list (widget);
-
- if (target_list == NULL)
- return NULL;
-
- source_targets = _gtk_quartz_pasteboard_types_to_atom_list ([pasteboard types]);
- tmp_target = target_list->list;
- while (tmp_target)
- {
- GtkTargetPair *pair = tmp_target->data;
- tmp_source = source_targets;
- while (tmp_source)
- {
- if (tmp_source->data == GUINT_TO_POINTER (pair->target))
- {
- if ((!(pair->flags & GTK_TARGET_SAME_APP) || source_widget) &&
- (!(pair->flags & GTK_TARGET_SAME_WIDGET) || (source_widget == widget)))
- {
- g_list_free (source_targets);
- return pair->target;
- }
- else
- break;
- }
- tmp_source = tmp_source->next;
- }
- tmp_target = tmp_target->next;
- }
-
- g_list_free (source_targets);
- return NULL;
-}
-
-static gboolean
-gtk_drag_begin_idle (gpointer arg)
-{
- NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
- GdkDragContext* context = (GdkDragContext*) arg;
- GtkDragSourceInfo* info = gtk_drag_get_source_info (context, FALSE);
- NSWindow *nswindow;
- NSPasteboard *pasteboard;
- GtkDragSourceOwner *owner;
- NSPoint point;
- NSSet *types;
- NSImage *drag_image;
-
- g_assert (info != NULL);
-
- pasteboard = [NSPasteboard pasteboardWithName:NSDragPboard];
- owner = [[GtkDragSourceOwner alloc] initWithInfo:info];
-
- types = _gtk_quartz_target_list_to_pasteboard_types (info->target_list);
-
- [pasteboard declareTypes:[types allObjects] owner:owner];
-
- [owner release];
- [types release];
-
- if ((nswindow = get_toplevel_nswindow (info->source_widget)) == NULL)
- return G_SOURCE_REMOVE;
-
- /* Ref the context. It's unreffed when the drag has been aborted */
- g_object_ref (info->context);
-
- /* FIXME: If the event isn't a mouse event, use the global cursor position instead */
- point = [info->nsevent locationInWindow];
-
- drag_image = _gtk_quartz_create_image_from_surface (info->icon_surface);
-
- if (drag_image == NULL)
- {
- g_object_unref (info->context);
- return G_SOURCE_REMOVE;
- }
-
- point.x -= info->hot_x;
- point.y -= [drag_image size].height - info->hot_y;
-
- [nswindow dragImage:drag_image
- at:point
- offset:NSZeroSize
- event:info->nsevent
- pasteboard:pasteboard
- source:nswindow
- slideBack:YES];
-
- [info->nsevent release];
- [drag_image release];
-
- [pool release];
-
- return G_SOURCE_REMOVE;
-}
-/* Fake protocol to let us call GdkNSView gdkSurface without including
- * gdk/GdkNSView.h (which we can’t because it pulls in the internal-only
- * gdksurface.h).
- */
-@protocol GdkNSView
-- (GdkSurface *)gdkSurface;
-@end
-
-GdkDragContext *
-gtk_drag_begin_internal (GtkWidget *widget,
- GtkImageDefinition *icon,
- GtkTargetList *target_list,
- GdkDragAction actions,
- gint button,
- const GdkEvent *event,
- int x,
- int y)
-{
- GtkDragSourceInfo *info;
- GdkDevice *pointer;
- GdkSurface *surface;
- GdkDragContext *context;
- NSWindow *nswindow = get_toplevel_nswindow (widget);
- NSPoint point = {0, 0};
- double time = (double)g_get_real_time ();
- NSEvent *nsevent;
- NSTimeInterval nstime;
-
- if ((x != -1 && y != -1) || event)
- {
- GdkSurface *surface;
- gdouble dx, dy;
- if (x != -1 && y != -1)
- {
- GtkWidget *toplevel = gtk_widget_get_toplevel (widget);
- surface = gtk_widget_get_surface (toplevel);
- gtk_widget_translate_coordinates (widget, toplevel, x, y, &x, &y);
- gdk_surface_get_root_coords (gtk_widget_get_surface (toplevel), x, y,
- &x, &y);
- dx = (gdouble)x;
- dy = (gdouble)y;
- }
- else if (event)
- {
- if (gdk_event_get_coords (event, &dx, &dy))
- {
- /* We need to translate (x, y) to coordinates relative to the
- * toplevel GdkSurface, which should be the GdkSurface backing
- * nswindow. Then, we convert to the NSWindow coordinate system.
- */
- surface = event->any.surface;
- GdkSurface *toplevel = gdk_surface_get_toplevel (surface);
-
- while (surface != toplevel)
- {
- double old_x = dx;
- double old_y = dy;
-
- gdk_surface_coords_to_parent (surface, old_x, old_y,
- &dx, &dy);
- surface = gdk_surface_get_parent (surface);
- }
- }
- time = (double)gdk_event_get_time (event);
- }
- point.x = dx;
- point.y = gdk_surface_get_height (surface) - dy;
- }
-
- nstime = [[NSDate dateWithTimeIntervalSince1970: time / 1000] timeIntervalSinceReferenceDate];
- nsevent = [NSEvent mouseEventWithType: NSLeftMouseDown
- location: point
- modifierFlags: 0
- timestamp: nstime
- windowNumber: [nswindow windowNumber]
- context: [nswindow graphicsContext]
- eventNumber: 0
- clickCount: 1
- pressure: 0.0 ];
-
- surface = [(id<GdkNSView>)[nswindow contentView] gdkSurface];
- g_return_val_if_fail (nsevent != NULL, NULL);
-
- context = gdk_drag_begin (surface, g_list_copy (target_list->list));
- g_return_val_if_fail (context != NULL, NULL);
-
- info = gtk_drag_get_source_info (context, TRUE);
- info->nsevent = nsevent;
- [info->nsevent retain];
-
- info->source_widget = g_object_ref (widget);
- info->widget = g_object_ref (widget);
- info->target_list = target_list;
- gtk_target_list_ref (target_list);
-
- info->possible_actions = actions;
-
- g_signal_emit_by_name (widget, "drag-begin", info->context);
-
- /* Ensure that we have an icon before we start the drag; the
- * application may have set one in ::drag_begin, or it may
- * not have set one.
- */
- if (!info->icon_surface && icon)
- {
- switch (gtk_image_definition_get_storage_type (icon))
- {
- case GTK_IMAGE_PIXBUF:
- gtk_drag_set_icon_pixbuf (context,
- gtk_image_definition_get_pixbuf (icon),
- -2, -2);
- break;
- case GTK_IMAGE_ICON_NAME:
- gtk_drag_set_icon_name (context,
- gtk_image_definition_get_icon_name (icon),
- -2, -2);
- break;
- default:
- break;
- }
- }
-
- /* no image def or no supported type -> set the default */
- if (!info->icon_surface)
- gtk_drag_set_icon_default (context);
-
- /* drag will begin in an idle handler to avoid nested run loops */
-
- g_idle_add_full (G_PRIORITY_HIGH_IDLE, gtk_drag_begin_idle, context, NULL);
-
- pointer = gdk_drag_context_get_device (info->context);
- gdk_device_ungrab (pointer, 0);
-
- return context;
-}
-
-/**
- * gtk_drag_begin_with_coordinates: (method)
- * @widget:
- * @targets:
- * @actions:
- * @button:
- * @event:
- * @x:
- * @y:
- *
- * Returns: (transfer none):
- */
-GdkDragContext *
-gtk_drag_begin_with_coordinates (GtkWidget *widget,
- GtkTargetList *targets,
- GdkDragAction actions,
- gint button,
- GdkEvent *event,
- gint x,
- gint y)
-{
- g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
- g_return_val_if_fail (gtk_widget_get_realized (widget), NULL);
- g_return_val_if_fail (targets != NULL, NULL);
-
- return gtk_drag_begin_internal (widget, NULL, targets,
- actions, button, event, x, y);
-}
-
-
-/**
- * gtk_drag_cancel:
- * @context: a #GdkDragContext, as e.g. returned by gtk_drag_begin_with_coordinates()
- *
- */
-void
-gtk_drag_cancel (GdkDragContext *context)
-{
- GtkDragSourceInfo *info;
-
- g_return_if_fail (GDK_IS_DRAG_CONTEXT (context));
-
- info = gtk_drag_get_source_info (context, FALSE);
- if (info != NULL)
- gtk_drag_drop_finished (info, GTK_DRAG_RESULT_ERROR);
-}
-
-
-/**
- * gtk_drag_set_icon_widget: (method)
- * @context: the context for a drag. (This must be called
- with a context for the source side of a drag)
- * @widget: a toplevel window to use as an icon.
- * @hot_x: the X offset within @widget of the hotspot.
- * @hot_y: the Y offset within @widget of the hotspot.
- *
- * Changes the icon for a widget to a given widget. GTK+
- * will not destroy the icon, so if you don’t want
- * it to persist, you should connect to the “drag-end”
- * signal and destroy it yourself.
- **/
-void
-gtk_drag_set_icon_widget (GdkDragContext *context,
- GtkWidget *widget,
- gint hot_x,
- gint hot_y)
-{
- g_return_if_fail (GDK_IS_DRAG_CONTEXT (context));
- g_return_if_fail (GTK_IS_WIDGET (widget));
-
- g_warning ("gtk_drag_set_icon_widget is not supported on Mac OS X");
-}
-
-static void
-set_icon_stock_pixbuf (GdkDragContext *context,
- GdkPixbuf *pixbuf,
- gint hot_x,
- gint hot_y)
-{
- GtkDragSourceInfo *info;
- cairo_surface_t *surface;
- cairo_t *cr;
-
- info = gtk_drag_get_source_info (context, FALSE);
-
- g_object_ref (pixbuf);
-
- surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
- gdk_pixbuf_get_width (pixbuf),
- gdk_pixbuf_get_height (pixbuf));
-
- cr = cairo_create (surface);
- gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0);
- cairo_paint (cr);
- cairo_destroy (cr);
- g_object_unref (pixbuf);
-
- cairo_surface_set_device_offset (surface, -hot_x, -hot_y);
- gtk_drag_set_icon_surface (context, surface);
- cairo_surface_destroy (surface);
-}
-
-void
-gtk_drag_set_icon_definition (GdkDragContext *context,
- GtkImageDefinition *def,
- gint hot_x,
- gint hot_y)
-{
- switch (gtk_image_definition_get_storage_type (def))
- {
- case GTK_IMAGE_EMPTY:
- gtk_drag_set_icon_default (context);
- break;
-
- case GTK_IMAGE_PIXBUF:
- gtk_drag_set_icon_pixbuf (context,
- gtk_image_definition_get_pixbuf (def),
- hot_x, hot_y);
- break;
-
- case GTK_IMAGE_ICON_NAME:
- gtk_drag_set_icon_name (context,
- gtk_image_definition_get_icon_name (def),
- hot_x, hot_y);
- break;
-
- default:
- g_warning ("FIXME: setting drag icon of type %u not implemented, using default.", gtk_image_definition_get_storage_type (def));
- gtk_drag_set_icon_default (context);
- break;
- }
-}
-
-/**
- * gtk_drag_set_icon_pixbuf:
- * @context: the context for a drag. (This must be called
- * with a context for the source side of a drag)
- * @pixbuf: the #GdkPixbuf to use as the drag icon.
- * @hot_x: the X offset within @widget of the hotspot.
- * @hot_y: the Y offset within @widget of the hotspot.
- *
- * Sets @pixbuf as the icon for a given drag.
- **/
-void
-gtk_drag_set_icon_pixbuf (GdkDragContext *context,
- GdkPixbuf *pixbuf,
- gint hot_x,
- gint hot_y)
-{
- g_return_if_fail (GDK_IS_DRAG_CONTEXT (context));
- g_return_if_fail (GDK_IS_PIXBUF (pixbuf));
-
- set_icon_stock_pixbuf (context, pixbuf, hot_x, hot_y);
-}
-
-/**
- * gtk_drag_set_icon_surface:
- * @context: the context for a drag. (This must be called
- * with a context for the source side of a drag)
- * @surface: the surface to use as icon
- *
- * Sets @surface as the icon for a given drag. GTK+ retains
- * references for the arguments, and will release them when
- * they are no longer needed.
- *
- * To position the surface relative to the mouse, use
- * cairo_surface_set_device_offset() on @surface. The mouse
- * cursor will be positioned at the (0,0) coordinate of the
- * surface.
- **/
-void
-gtk_drag_set_icon_surface (GdkDragContext *context,
- cairo_surface_t *surface)
-{
- double x_offset, y_offset;
- GtkDragSourceInfo *info;
-
- g_return_if_fail (GDK_IS_DRAG_CONTEXT (context));
- g_return_if_fail (surface != NULL);
-
- cairo_surface_get_device_offset (surface, &x_offset, &y_offset);
- info = gtk_drag_get_source_info (context, FALSE);
- cairo_surface_reference (surface);
-
- if (info->icon_surface)
- cairo_surface_destroy (info->icon_surface);
-
- info->icon_surface = surface;
- info->hot_x = -x_offset;
- info->hot_y = -y_offset;
-}
-
-/**
- * gtk_drag_set_icon_name:
- * @context: the context for a drag. (This must be called
- * with a context for the source side of a drag)
- * @icon_name: name of icon to use
- * @hot_x: the X offset of the hotspot within the icon
- * @hot_y: the Y offset of the hotspot within the icon
- *
- * Sets the icon for a given drag from a named themed icon. See
- * the docs for #GtkIconTheme for more details. Note that the
- * size of the icon depends on the icon theme (the icon is
- * loaded at the symbolic size #GTK_ICON_SIZE_DND), thus
- * @hot_x and @hot_y have to be used with care.
- **/
-void
-gtk_drag_set_icon_name (GdkDragContext *context,
- const gchar *icon_name,
- gint hot_x,
- gint hot_y)
-{
- GdkDisplay *display;
- GtkIconTheme *icon_theme;
- GdkPixbuf *pixbuf;
- gint width, height, icon_size;
-
- g_return_if_fail (GDK_IS_DRAG_CONTEXT (context));
- g_return_if_fail (icon_name != NULL);
-
- display = gdk_surface_get_display (gdk_drag_context_get_source_surface (context));
- g_return_if_fail (display != NULL);
-
- gtk_icon_size_lookup (GTK_ICON_SIZE_DND, &width, &height);
- icon_size = MAX (width, height);
-
- icon_theme = gtk_icon_theme_get_for_display (display);
-
- pixbuf = gtk_icon_theme_load_icon (icon_theme, icon_name,
- icon_size, 0, NULL);
- if (pixbuf)
- set_icon_stock_pixbuf (context, pixbuf, hot_x, hot_y);
- else
- g_warning ("Cannot load drag icon from icon name %s", icon_name);
-}
-
-/**
- * gtk_drag_set_icon_default: (method)
- * @context: the context for a drag. (This must be called
- with a context for the source side of a drag)
- *
- * Sets the icon for a particular drag to the default
- * icon.
- **/
-void
-gtk_drag_set_icon_default (GdkDragContext *context)
-{
- g_return_if_fail (GDK_IS_DRAG_CONTEXT (context));
-
- gtk_drag_set_icon_name (context, "text-x-generic", -2, -2);
-}
-
-static void
-gtk_drag_source_info_destroy (GtkDragSourceInfo *info)
-{
- NSPasteboard *pasteboard;
- NSAutoreleasePool *pool;
-
- if (info->icon_surface)
- cairo_surface_destroy (info->icon_surface);
-
- g_signal_emit_by_name (info->widget, "drag-end",
- info->context);
-
- if (info->source_widget)
- g_object_unref (info->source_widget);
-
- if (info->widget)
- g_object_unref (info->widget);
-
- gtk_target_list_unref (info->target_list);
-
- pool = [[NSAutoreleasePool alloc] init];
-
- /* Empty the pasteboard, so that it will not accidentally access
- * info->context after it has been destroyed.
- */
- pasteboard = [NSPasteboard pasteboardWithName: NSDragPboard];
- [pasteboard declareTypes: nil owner: nil];
-
- [pool release];
-
- gtk_drag_clear_source_info (info->context);
- g_object_unref (info->context);
-
- g_free (info);
- info = NULL;
-}
-
-static gboolean
-drag_drop_finished_idle_cb (gpointer data)
-{
- GtkDragSourceInfo* info = (GtkDragSourceInfo*) data;
- if (info->success)
- gtk_drag_source_info_destroy (data);
- return G_SOURCE_REMOVE;
-}
-
-static void
-gtk_drag_drop_finished (GtkDragSourceInfo *info,
- GtkDragResult result)
-{
- gboolean success = (result == GTK_DRAG_RESULT_SUCCESS);
-
- if (!success)
- g_signal_emit_by_name (info->source_widget, "drag-failed",
- info->context, result, &success);
-
- if (success && info->delete)
- g_signal_emit_by_name (info->source_widget, "drag-data-delete",
- info->context);
-
- /* Workaround for the fact that the NS API blocks until the drag is
- * over. This way the context is still valid when returning from
- * drag_begin, even if it will still be quite useless. See bug #501588.
- */
- g_idle_add (drag_drop_finished_idle_cb, info);
-}
-
-/*************************************************************
- * _gtk_drag_source_handle_event:
- * Called from widget event handling code on Drag events
- * for drag sources.
- *
- * arguments:
- * toplevel: Toplevel widget that received the event
- * event:
- * results:
- *************************************************************/
-
-void
-_gtk_drag_source_handle_event (GtkWidget *widget,
- GdkEvent *event)
-{
- GtkDragSourceInfo *info;
- GdkDragContext *context;
- GtkDragResult result;
-
- g_return_if_fail (widget != NULL);
- g_return_if_fail (event != NULL);
-
- context = event->dnd.context;
- info = gtk_drag_get_source_info (context, FALSE);
- if (!info)
- return;
-
- switch (event->type)
- {
- case GDK_DROP_FINISHED:
- result = (gdk_drag_context_get_dest_surface (context) != NULL) ? GTK_DRAG_RESULT_SUCCESS : GTK_DRAG_RESULT_NO_TARGET;
- gtk_drag_drop_finished (info, result);
- break;
- default:
- g_assert_not_reached ();
- }
-}
-
-/**
- * gtk_drag_check_threshold: (method)
- * @widget: a #GtkWidget
- * @start_x: X coordinate of start of drag
- * @start_y: Y coordinate of start of drag
- * @current_x: current X coordinate
- * @current_y: current Y coordinate
- */
-gboolean
-gtk_drag_check_threshold (GtkWidget *widget,
- gint start_x,
- gint start_y,
- gint current_x,
- gint current_y)
-{
- gint drag_threshold;
-
- g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
-
- g_object_get (gtk_widget_get_settings (widget),
- "gtk-dnd-drag-threshold", &drag_threshold,
- NULL);
-
- return (ABS (current_x - start_x) > drag_threshold ||
- ABS (current_y - start_y) > drag_threshold);
-}
projects / gtk4.git / commitdiff