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a074f1fe72
get_data can be called multiple times, so we must not clear the data the first time we get called.
129 lines
4.1 KiB
C
129 lines
4.1 KiB
C
/* simple.c
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* Copyright (C) 1997 Red Hat, Inc
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* Author: Elliot Lee
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gtk/gtk.h>
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static void
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drag_begin_cb (GtkWidget *widget,
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GdkDragContext *context,
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gpointer data)
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{
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char **uris;
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char *cwd;
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cwd = g_get_current_dir ();
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uris = g_new0 (char *, 2);
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uris[0] = g_strconcat ("file://", cwd, "/README.md", NULL);
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g_free (cwd);
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g_signal_handlers_disconnect_by_func (widget, drag_begin_cb, NULL);
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gtk_drag_set_icon_default (context);
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g_object_set_data_full (G_OBJECT (widget), "uris", g_strdupv ((char **)uris), (GDestroyNotify) g_strfreev);
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}
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static void
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drag_data_get (GtkWidget *widget,
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GdkDragContext *context,
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GtkSelectionData *selection,
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unsigned int target_info,
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unsigned int time,
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gpointer data)
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{
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char **uris = (char **)g_object_get_data (G_OBJECT (widget), "uris");
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gtk_selection_data_set_uris (selection, uris);
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}
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static void
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drag_data_received (GtkWidget *widget,
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GdkDragContext *context,
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int x,
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int y,
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GtkSelectionData *selection_data,
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unsigned int info,
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unsigned int time,
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gpointer user_data)
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{
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GtkLabel *label = user_data;
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char **uris;
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uris = gtk_selection_data_get_uris (selection_data);
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if (uris)
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{
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gtk_label_set_label (label, uris[0]);
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g_strfreev (uris);
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}
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}
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int
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main (int argc, char *argv[])
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{
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GtkWidget *window, *label, *eventbox, *box;
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GtkTargetEntry targets[] = {
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{ "application/vnd.portal.files", 0, 0 },
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};
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gtk_init (&argc, &argv);
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window = g_object_connect (g_object_new (gtk_window_get_type (),
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"type", GTK_WINDOW_TOPLEVEL,
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"title", "hello world",
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"resizable", FALSE,
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"border_width", 10,
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NULL),
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"signal::destroy", gtk_main_quit, NULL,
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NULL);
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box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
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gtk_widget_show (box);
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gtk_container_add (GTK_CONTAINER (window), box);
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eventbox = gtk_event_box_new ();
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gtk_container_add (GTK_CONTAINER (box), eventbox);
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gtk_widget_show (eventbox);
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gtk_event_box_set_above_child (GTK_EVENT_BOX (eventbox), TRUE);
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label = gtk_label_new ("drag me");
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gtk_container_add (GTK_CONTAINER (eventbox), label);
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gtk_drag_source_set (eventbox, GDK_BUTTON1_MASK, targets, G_N_ELEMENTS (targets), GDK_ACTION_COPY);
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g_signal_connect (eventbox, "drag-begin", G_CALLBACK (drag_begin_cb), NULL);
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g_signal_connect (eventbox, "drag-data-get", G_CALLBACK (drag_data_get), NULL);
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gtk_widget_show (label);
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eventbox = gtk_event_box_new ();
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gtk_container_add (GTK_CONTAINER (box), eventbox);
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gtk_widget_show (eventbox);
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gtk_event_box_set_above_child (GTK_EVENT_BOX (eventbox), TRUE);
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label = gtk_label_new ("drop here");
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gtk_widget_show (label);
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gtk_container_add (GTK_CONTAINER (eventbox), label);
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gtk_drag_dest_set (eventbox, GTK_DEST_DEFAULT_ALL, targets, G_N_ELEMENTS (targets), GDK_ACTION_COPY);
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g_signal_connect (eventbox, "drag-data-received", G_CALLBACK (drag_data_received), label);
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gtk_widget_show (window);
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gtk_main ();
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return 0;
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}
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