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New function to get the source widget of a drag.

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Fri Nov 27 12:17:15 1998  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtkdnd.[ch] (gtk_drag_get_source_widget): New function to
	get the source widget of a drag.

	* gtk/gtkdnd.[ch]: Target flags GTK_TARGET_SAME_[WIDGET/APP]
	to restrict certain targets to the same widget or to
	the same application.

	* gtk/testdnd.c: Test gtk_drag_get_source_widget().
This commit is contained in:
Owen Taylor 1998-11-27 17:16:36 +00:00 committed by Owen Taylor
parent 4ab10dc891
commit f26c189e5b
11 changed files with 158 additions and 7 deletions
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11
ChangeLog
View File

@ -1,3 +1,14 @@
Fri Nov 27 12:17:15 1998 Owen Taylor <otaylor@redhat.com>
* gtk/gtkdnd.[ch] (gtk_drag_get_source_widget): New function to
get the source widget of a drag.
* gtk/gtkdnd.[ch]: Target flags GTK_TARGET_SAME_[WIDGET/APP]
to restrict certain targets to the same widget or to
the same application.
* gtk/testdnd.c: Test gtk_drag_get_source_widget().
Thu Nov 26 19:11:46 1998 Lars Hamann <lars@gtk.org>
* gtk/gtk-boxed.defs (GtkCTreeNode): define GtkCTreeNode as boxed type

11
ChangeLog.pre-2-0
View File

@ -1,3 +1,14 @@
Fri Nov 27 12:17:15 1998 Owen Taylor <otaylor@redhat.com>
* gtk/gtkdnd.[ch] (gtk_drag_get_source_widget): New function to
get the source widget of a drag.
* gtk/gtkdnd.[ch]: Target flags GTK_TARGET_SAME_[WIDGET/APP]
to restrict certain targets to the same widget or to
the same application.
* gtk/testdnd.c: Test gtk_drag_get_source_widget().
Thu Nov 26 19:11:46 1998 Lars Hamann <lars@gtk.org>
* gtk/gtk-boxed.defs (GtkCTreeNode): define GtkCTreeNode as boxed type

11
ChangeLog.pre-2-10
View File

@ -1,3 +1,14 @@
Fri Nov 27 12:17:15 1998 Owen Taylor <otaylor@redhat.com>
* gtk/gtkdnd.[ch] (gtk_drag_get_source_widget): New function to
get the source widget of a drag.
* gtk/gtkdnd.[ch]: Target flags GTK_TARGET_SAME_[WIDGET/APP]
to restrict certain targets to the same widget or to
the same application.
* gtk/testdnd.c: Test gtk_drag_get_source_widget().
Thu Nov 26 19:11:46 1998 Lars Hamann <lars@gtk.org>
* gtk/gtk-boxed.defs (GtkCTreeNode): define GtkCTreeNode as boxed type

11
ChangeLog.pre-2-2
View File

@ -1,3 +1,14 @@
Fri Nov 27 12:17:15 1998 Owen Taylor <otaylor@redhat.com>
* gtk/gtkdnd.[ch] (gtk_drag_get_source_widget): New function to
get the source widget of a drag.
* gtk/gtkdnd.[ch]: Target flags GTK_TARGET_SAME_[WIDGET/APP]
to restrict certain targets to the same widget or to
the same application.
* gtk/testdnd.c: Test gtk_drag_get_source_widget().
Thu Nov 26 19:11:46 1998 Lars Hamann <lars@gtk.org>
* gtk/gtk-boxed.defs (GtkCTreeNode): define GtkCTreeNode as boxed type

11
ChangeLog.pre-2-4
View File

@ -1,3 +1,14 @@
Fri Nov 27 12:17:15 1998 Owen Taylor <otaylor@redhat.com>
* gtk/gtkdnd.[ch] (gtk_drag_get_source_widget): New function to
get the source widget of a drag.
* gtk/gtkdnd.[ch]: Target flags GTK_TARGET_SAME_[WIDGET/APP]
to restrict certain targets to the same widget or to
the same application.
* gtk/testdnd.c: Test gtk_drag_get_source_widget().
Thu Nov 26 19:11:46 1998 Lars Hamann <lars@gtk.org>
* gtk/gtk-boxed.defs (GtkCTreeNode): define GtkCTreeNode as boxed type

11
ChangeLog.pre-2-6
View File

@ -1,3 +1,14 @@
Fri Nov 27 12:17:15 1998 Owen Taylor <otaylor@redhat.com>
* gtk/gtkdnd.[ch] (gtk_drag_get_source_widget): New function to
get the source widget of a drag.
* gtk/gtkdnd.[ch]: Target flags GTK_TARGET_SAME_[WIDGET/APP]
to restrict certain targets to the same widget or to
the same application.
* gtk/testdnd.c: Test gtk_drag_get_source_widget().
Thu Nov 26 19:11:46 1998 Lars Hamann <lars@gtk.org>
* gtk/gtk-boxed.defs (GtkCTreeNode): define GtkCTreeNode as boxed type

11
ChangeLog.pre-2-8
View File

@ -1,3 +1,14 @@
Fri Nov 27 12:17:15 1998 Owen Taylor <otaylor@redhat.com>
* gtk/gtkdnd.[ch] (gtk_drag_get_source_widget): New function to
get the source widget of a drag.
* gtk/gtkdnd.[ch]: Target flags GTK_TARGET_SAME_[WIDGET/APP]
to restrict certain targets to the same widget or to
the same application.
* gtk/testdnd.c: Test gtk_drag_get_source_widget().
Thu Nov 26 19:11:46 1998 Lars Hamann <lars@gtk.org>
* gtk/gtk-boxed.defs (GtkCTreeNode): define GtkCTreeNode as boxed type

61
gtk/gtkdnd.c
View File

@ -26,6 +26,7 @@
#include "gtkdrawwindow.h"
static GSList *drag_widgets = NULL;
static GSList *source_widgets = NULL;
typedef struct _GtkDragSourceSite GtkDragSourceSite;
typedef struct _GtkDragSourceInfo GtkDragSourceInfo;
@ -151,7 +152,8 @@ static GdkCursor * gtk_drag_get_cursor (GdkDragAction action);
static GtkWidget *gtk_drag_get_ipc_widget (void);
static void gtk_drag_release_ipc_widget (GtkWidget *widget);
static GdkAtom gtk_drag_dest_find_target (GtkDragDestSite *site,
static GdkAtom gtk_drag_dest_find_target (GtkWidget *widget,
GtkDragDestSite *site,
GdkDragContext *context);
static void gtk_drag_selection_received (GtkWidget *widget,
GtkSelectionData *selection_data,
@ -521,6 +523,42 @@ gtk_drag_get_data (GtkWidget *widget,
time);
}
/*************************************************************
* gtk_drag_get_source_widget:
* Get the widget the was the source of this drag, if
* the drag originated from this application.
* arguments:
* context: The drag context for this drag
* results:
* The source widget, or NULL if the drag originated from
* a different application.
*************************************************************/
GtkWidget *
gtk_drag_get_source_widget (GdkDragContext *context)
{
GSList *tmp_list;
tmp_list = source_widgets;
while (tmp_list)
{
GtkWidget *ipc_widget = tmp_list->data;
if (ipc_widget->window == context->source_window)
{
GtkDragSourceInfo *info;
info = gtk_object_get_data (GTK_OBJECT (ipc_widget), "gtk-info");
return info ? info->widget : NULL;
}
tmp_list = tmp_list->next;
}
return NULL;
}
/*************************************************************
* gtk_drag_finish:
* Notify the drag source that the transfer of data
@ -877,11 +915,13 @@ gtk_drag_dest_handle_event (GtkWidget *toplevel,
*************************************************************/
static GdkAtom
gtk_drag_dest_find_target (GtkDragDestSite *site,
gtk_drag_dest_find_target (GtkWidget *widget,
GtkDragDestSite *site,
GdkDragContext *context)
{
GList *tmp_target;
GList *tmp_source = NULL;
GtkWidget *source_widget = gtk_drag_get_source_widget (context);
tmp_target = site->target_list->list;
while (tmp_target)
@ -891,7 +931,13 @@ gtk_drag_dest_find_target (GtkDragDestSite *site,
while (tmp_source)
{
if (tmp_source->data == GUINT_TO_POINTER (pair->target))
return pair->target;
{
if ((!(pair->flags & GTK_TARGET_SAME_APP) || source_widget) &&
(!(pair->flags & GTK_TARGET_SAME_WIDGET) || (source_widget == widget)))
return pair->target;
else
break;
}
tmp_source = tmp_source->next;
}
tmp_target = tmp_target->next;
@ -1273,7 +1319,7 @@ gtk_drag_dest_motion (GtkWidget *widget,
}
}
if (action && gtk_drag_dest_find_target (site, context))
if (action && gtk_drag_dest_find_target (widget, site, context))
{
if (!site->have_drag)
{
@ -1377,7 +1423,7 @@ gtk_drag_dest_drop (GtkWidget *widget,
if (site->flags & GTK_DEST_DEFAULT_MOTION)
{
GdkAtom target = gtk_drag_dest_find_target (site, context);
GdkAtom target = gtk_drag_dest_find_target (widget, site, context);
if (target == GDK_NONE)
return FALSE;
@ -1429,6 +1475,9 @@ gtk_drag_begin (GtkWidget *widget,
info = g_new0 (GtkDragSourceInfo, 1);
info->ipc_widget = gtk_drag_get_ipc_widget ();
source_widgets = g_slist_prepend (source_widgets, info->ipc_widget);
gtk_object_set_data (GTK_OBJECT (info->ipc_widget), "gtk-info", info);
tmp_list = g_list_last (target_list->list);
while (tmp_list)
@ -2238,6 +2287,8 @@ gtk_drag_source_info_destroy (gpointer data)
gtk_signal_disconnect_by_data (GTK_OBJECT (info->ipc_widget), info);
gtk_selection_remove_all (info->ipc_widget);
gtk_object_set_data (GTK_OBJECT (info->ipc_widget), "gtk-info", NULL);
source_widgets = g_slist_remove (source_widgets, info->ipc_widget);
gtk_drag_release_ipc_widget (info->ipc_widget);
gtk_target_list_unref (info->target_list);

9
gtk/gtkdnd.h
View File

@ -35,6 +35,13 @@ typedef enum {
GTK_DEST_DEFAULT_ALL = 0x07
} GtkDestDefaults;
/* Flags for the GtkTargetEntry on the destination side
*/
typedef enum {
GTK_TARGET_SAME_APP = 1 << 0, /*< nick=same-app >*/
GTK_TARGET_SAME_WIDGET = 1 << 1 /*< nick=same-widget >*/
} GtkTargetFlags;
/* Destination side */
void gtk_drag_get_data (GtkWidget *widget,
@ -46,6 +53,8 @@ void gtk_drag_finish (GdkDragContext *context,
gboolean del,
guint32 time);
GtkWidget *gtk_drag_get_source_widget (GdkDragContext *context);
void gtk_drag_highlight (GtkWidget *widget);
void gtk_drag_unhighlight (GtkWidget *widget);

9
gtk/testdnd.c
View File

@ -302,12 +302,19 @@ target_drag_motion (GtkWidget *widget,
gint y,
guint time)
{
GtkWidget *source_widget;
if (!have_drag)
{
have_drag = TRUE;
gtk_pixmap_set (GTK_PIXMAP (widget), trashcan_open, trashcan_open_mask);
}
g_print("motion\n");
source_widget = gtk_drag_get_source_widget (context);
g_print("motion, source %s\n", source_widget ?
gtk_type_name (GTK_OBJECT (source_widget)->klass->type) :
"unknown");
gdk_drag_status (context, context->suggested_action, time);
return TRUE;
}

9
tests/testdnd.c
View File

@ -302,12 +302,19 @@ target_drag_motion (GtkWidget *widget,
gint y,
guint time)
{
GtkWidget *source_widget;
if (!have_drag)
{
have_drag = TRUE;
gtk_pixmap_set (GTK_PIXMAP (widget), trashcan_open, trashcan_open_mask);
}
g_print("motion\n");
source_widget = gtk_drag_get_source_widget (context);
g_print("motion, source %s\n", source_widget ?
gtk_type_name (GTK_OBJECT (source_widget)->klass->type) :
"unknown");
gdk_drag_status (context, context->suggested_action, time);
return TRUE;
}