manage.c   [plain text]

/*
 * Copyright © 2008 Ian Osgood <iano@quirkster.com>
 * Copyright © 2008 Josh Triplett <josh@freedesktop.org>
 * Copyright © 2008 Thomas Hunger <hto@arco.de>
 * Copyright © 2008 Torri Vincent <vtorri@univ-evry.fr>
 *
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use, copy,
 * modify, merge, publish, distribute, sublicense, and/or sell copies
 * of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * Except as contained in this notice, the names of the authors or
 * their institutions shall not be used in advertising or otherwise to
 * promote the sale, use or other dealings in this Software without
 * prior written authorization from the authors.
 */

#include <stdlib.h>
#include <stdio.h>
#include "xcb_wm.h"

table_t *byChild = 0;
table_t *byParent = 0;

void manage_window(xcb_property_handlers_t *prophs, xcb_connection_t *c, xcb_window_t window, window_attributes_t wa)
{
	xcb_drawable_t d = { window };
	xcb_get_geometry_cookie_t geomc;
	xcb_get_geometry_reply_t *geom;
	xcb_get_window_attributes_reply_t *attr = 0;
	if(wa.tag == TAG_COOKIE)
	{
		attr = xcb_get_window_attributes_reply(c, wa.u.cookie, 0);
		if(!attr)
			return;
		if(attr->map_state != XCB_MAP_STATE_VIEWABLE)
		{
			printf("Window 0x%08x is not mapped. Ignoring.\n", window);
			free(attr);
			return;
		}
		wa.tag = TAG_VALUE;
		wa.u.override_redirect = attr->override_redirect;
	}
	if(!wa.u.override_redirect && table_get(byChild, window))
	{
		printf("Window 0x%08x already managed. Ignoring.\n", window);
		free(attr);
		return;
	}
	if(wa.u.override_redirect)
	{
		printf("Window 0x%08x has override-redirect set. Ignoring.\n", window);
		free(attr);
		return;
	}
	geomc = xcb_get_geometry(c, d);
	if(!attr)
	{
		wa.tag = TAG_COOKIE;
		wa.u.cookie = xcb_get_window_attributes(c, window);
		attr = xcb_get_window_attributes_reply(c, wa.u.cookie, 0);
	}
	geom = xcb_get_geometry_reply(c, geomc, 0);
	if(attr && geom)
	{
		reparent_window(c, window, attr->visual, geom->root, geom->depth, geom->x, geom->y, geom->width, geom->height);
		xcb_property_changed(prophs, XCB_PROPERTY_NEW_VALUE, window, WM_NAME);
	}
	free(attr);
	free(geom);
}

int handle_map_notify_event(void *prophs, xcb_connection_t *c, xcb_map_notify_event_t *e)
{
	window_attributes_t wa = { TAG_VALUE };
	wa.u.override_redirect = e->override_redirect;
	printf("MapNotify for 0x%08x.\n", e->window);
	manage_window(prophs, c, e->window, wa);
	return 1;
}

int handle_unmap_notify_event(void *data, xcb_connection_t *c, xcb_unmap_notify_event_t *e)
{
	client_window_t *client = table_remove(byChild, e->event);
	xcb_window_t root;
	printf("UnmapNotify for 0x%08x (received from 0x%08x): ", e->window, e->event);
	if(!client)
	{
		printf("not a managed window. Ignoring.\n");
		return 0;
	}

	root = xcb_setup_roots_iterator(xcb_get_setup(c)).data->root;
	printf("child of 0x%08x.\n", client->parent);
	xcb_reparent_window(c, client->child, root, 0, 0);
	xcb_destroy_window(c, client->parent);
	xcb_flush(c);
	table_remove(byParent, client->parent);
	free(client);
	return 1;
}

void manage_existing_windows(xcb_connection_t *c, xcb_property_handlers_t *prophs, xcb_window_t root)
{
	xcb_query_tree_cookie_t wintree;
	xcb_query_tree_reply_t *rep;
	int i, len;
	xcb_window_t *children;
	xcb_get_window_attributes_cookie_t *cookies;

	wintree = xcb_query_tree(c, root);
	rep = xcb_query_tree_reply(c, wintree, 0);
	if(!rep)
		return;
	len = xcb_query_tree_children_length(rep);
	cookies = malloc(len * sizeof(*cookies));
	if(!cookies)
	{
		free(rep);
		return;
	}
	children = xcb_query_tree_children(rep);
	for(i = 0; i < len; ++i)
		cookies[i] = xcb_get_window_attributes(c, children[i]);
	for(i = 0; i < len; ++i)
	{
		window_attributes_t wa = { TAG_COOKIE, { cookies[i] } };
		manage_window(prophs, c, children[i], wa);
	}
	free(rep);
}