RoxTerm Code

/*
    roxterm - GTK+ 2.0 terminal emulator with tabs
    Copyright (C) 2004 Tony Houghton <h@realh.co.uk>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program 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 General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/


#include "dragrcv.h"

#include <string.h>

/*
typedef gboolean (*DragReceiveHandler)(GtkWidget *, const char *text,
		gulong length, char const **uris, gpointer data);
*/

struct DragReceiveData {
	DragReceiveHandler handler;
	gpointer data;
};

static void drag_data_received(GtkWidget *widget, GdkDragContext *context, 
		gint x, gint y, GtkSelectionData *selection_data, guint info,
		guint time, gpointer data)
{
	DragReceiveData *drd = data;
	char *str;
	GString *gstr;
	int i;
	const guint16 *char_data;
	int char_len;
	char *filename;
	char *uri_list;
	char **uris;

#if 0
	GList *tmp;

	tmp = context->targets;
	while (tmp != NULL)
	{
		GdkAtom atom = GPOINTER_TO_UINT(tmp->data);

		g_debug("Target: %s", gdk_atom_name(atom));

		tmp = tmp->next;
	}
	g_debug("info: %d", info);
#endif

	switch (info)
	{
		case ROXTERM_DRAG_TARGET_TEXT_PLAIN:
			if (selection_data->format != 8
				|| selection_data->length == 0)
			{
				g_critical(_("text/plain dropped on widget had wrong "
							"format (%d) or length (%d)\n"),
							selection_data->format, selection_data->length);
				return;
			}
			/* Fall-through */
		case ROXTERM_DRAG_TARGET_STRING:
		case ROXTERM_DRAG_TARGET_UTF8_STRING:
		case ROXTERM_DRAG_TARGET_COMPOUND_TEXT:
		case ROXTERM_DRAG_TARGET_TEXT:
			str = (char *) gtk_selection_data_get_text(selection_data);
			if (str && *str)
				drd->handler(widget, str, strlen(str), drd->data);
			g_free(str);
			break;
		case ROXTERM_DRAG_TARGET_MOZ_URL:
			/* MOZ_URL is in UCS-2 but in format 8. BROKEN!
			 *
			 * The data contains the URL, a \n, then the
			 * title of the web page.
			 */
			if (selection_data->format != 8 || selection_data->length == 0
				|| (selection_data->length % 2) != 0)
			{
				g_critical(_("Mozilla url dropped on widget had wrong "
							"format (%d) or length (%d)\n"),
							selection_data->format,
							selection_data->length);
				return;
			}

			gstr = g_string_new(NULL);
			char_len = selection_data->length / 2;
			char_data = (const guint16 *) selection_data->data;
			i = 0;
			while (i < char_len)
			{
				if (char_data[i] == '\n')
					break;
				g_string_append_unichar(gstr, (gunichar) char_data[i]);
				++i;
			}

			filename = g_filename_from_uri(gstr->str, NULL, NULL);
			if (filename)
				drd->handler(widget, filename, strlen(filename), drd->data);
			else
				drd->handler(widget, gstr->str, gstr->len, drd->data);
			g_free(filename);
			g_string_free(gstr, TRUE);
			break;
		case ROXTERM_DRAG_TARGET_URI_LIST:
			if (selection_data->format != 8
				|| selection_data->length == 0)
			{
				g_critical(_("URI list dropped on widget had wrong "
							"format (%d) or length (%d)\n"),
							selection_data->format, selection_data->length);
				return;
			}
			/* Don't use gtk_selection_data_get_text because it returns UTF-8
			 * while g_filename_from_uri wants ASCII in */
			uri_list = g_strndup((const char *) selection_data->data,
					selection_data->length);
			uris = g_strsplit(uri_list, "\r\n", 0);
			for (i = 0; uris && uris[i]; ++i)
			{
				char *old;

				old = uris[i];
				uris[i] = g_filename_from_uri(old, NULL, NULL);
				if (uris[i] == NULL)
					uris[i] = old;
				else
					g_free(old);
				if ((g_str_has_prefix(uris[i], "mailto:")
							|| g_str_has_prefix(uris[i], "MAILTO:"))
						&& !strchr(uris[i], '?'))
				{
					old = uris[i];
					uris[i] = g_strdup(uris[i] + 7);
					g_free(old);
				}
			}
			if (uris)
			{
				char *flat = g_strjoinv("\r\n", uris);

				drd->handler(widget, flat, strlen(flat), drd->data);
				g_free (flat);
			}
			g_strfreev(uris);
			g_free(uri_list);
			break;
	}
}

DragReceiveData *drag_receive_setup_dest_widget(GtkWidget *widget,
		DragReceiveHandler handler, gpointer data)
{
	static GtkTargetEntry target_table[] = {
		/*
		{ "application/x-color", 0, ROXTERM_DRAG_TARGET_COLOR },
		{ "property/bgimage",    0, ROXTERM_DRAG_TARGET_BGIMAGE },
		{ "x-special/gnome-reset-background", 0, ROXTERM_DRAG_TARGET_RESET_BG },
		*/
		{ (char *) "text/uri-list",  0, ROXTERM_DRAG_TARGET_URI_LIST },
		{ (char *) "text/x-moz-url",  0, ROXTERM_DRAG_TARGET_MOZ_URL },
		{ (char *) "UTF8_STRING", 0, ROXTERM_DRAG_TARGET_UTF8_STRING },
		{ (char *) "COMPOUND_TEXT", 0, ROXTERM_DRAG_TARGET_COMPOUND_TEXT },
		{ (char *) "TEXT", 0, ROXTERM_DRAG_TARGET_TEXT },
		{ (char *) "STRING",     0, ROXTERM_DRAG_TARGET_STRING },
		{ (char *) "text/plain", 0, ROXTERM_DRAG_TARGET_TEXT_PLAIN }
		/*{ (char *) "text/unicode", 0, ROXTERM_DRAG_TARGET_TEXT_UNICODE }*/
	};
	DragReceiveData *drd = g_new(DragReceiveData, 1);
	
	drd->handler = handler;
	drd->data = data;
	g_signal_connect(widget, "drag_data_received",
			G_CALLBACK(drag_data_received), drd);
	
	gtk_drag_dest_set(widget,
	                   GTK_DEST_DEFAULT_MOTION |
	                   GTK_DEST_DEFAULT_HIGHLIGHT |
	                   GTK_DEST_DEFAULT_DROP,
	                   target_table, G_N_ELEMENTS(target_table),
	                   GDK_ACTION_COPY | GDK_ACTION_MOVE);
	return drd;
}

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