seamlessrdp-branch/rdesktop/ewmhints.c

/* -*- c-basic-offset: 8 -*-
   rdesktop: A Remote Desktop Protocol client.

   Support functions for Extended Window Manager Hints,
   http://www.freedesktop.org/wiki/Standards_2fwm_2dspec

   Copyright (C) Peter Astrand <astrand@cendio.se> 2005
   
   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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include <X11/Xutil.h>
#include "rdesktop.h"

#define _NET_WM_STATE_REMOVE        0   /* remove/unset property */
#define _NET_WM_STATE_ADD           1   /* add/set property */
#define _NET_WM_STATE_TOGGLE        2   /* toggle property  */

extern Display *g_display;

static Atom g_net_wm_state_maximized_vert_atom, g_net_wm_state_maximized_horz_atom,
        g_net_wm_state_hidden_atom, g_net_wm_name_atom, g_utf8_string_atom,
        g_net_wm_state_skip_taskbar_atom, g_net_wm_state_skip_pager_atom, g_net_wm_state_modal_atom;

Atom g_net_wm_state_atom, g_net_wm_desktop_atom;

/* 
   Get window property value (32 bit format) 
   Returns zero on success, -1 on error
*/
static int
get_property_value(Window wnd, char *propname, long max_length,
                   unsigned long *nitems_return, unsigned char **prop_return, int nowarn)
{
        int result;
        Atom property;
        Atom actual_type_return;
        int actual_format_return;
        unsigned long bytes_after_return;

        property = XInternAtom(g_display, propname, True);
        if (property == None)
        {
                fprintf(stderr, "Atom %s does not exist\n", propname);
                return (-1);
        }

        result = XGetWindowProperty(g_display, wnd, property, 0,        /* long_offset */
                                    max_length, /* long_length */
                                    False,      /* delete */
                                    AnyPropertyType,    /* req_type */
                                    &actual_type_return,
                                    &actual_format_return,
                                    nitems_return, &bytes_after_return, prop_return);

        if (result != Success)
        {
                fprintf(stderr, "XGetWindowProperty failed\n");
                return (-1);
        }

        if (actual_type_return == None || actual_format_return == 0)
        {
                if (!nowarn)
                        fprintf(stderr, "Window is missing property %s\n", propname);
                return (-1);
        }

        if (bytes_after_return)
        {
                fprintf(stderr, "%s is too big for me\n", propname);
                return (-1);
        }

        if (actual_format_return != 32)
        {
                fprintf(stderr, "%s has bad format\n", propname);
                return (-1);
        }

        return (0);
}

/* 
   Get current desktop number
   Returns -1 on error
*/
static int
get_current_desktop(void)
{
        unsigned long nitems_return;
        unsigned char *prop_return;
        int current_desktop;

        if (get_property_value
            (DefaultRootWindow(g_display), "_NET_CURRENT_DESKTOP", 1, &nitems_return,
             &prop_return, 0) < 0)
                return (-1);

        if (nitems_return != 1)
        {
                fprintf(stderr, "_NET_CURRENT_DESKTOP has bad length\n");
                return (-1);
        }

        current_desktop = *prop_return;
        XFree(prop_return);
        return current_desktop;
}

/*
  Get workarea geometry
  Returns zero on success, -1 on error
 */

int
get_current_workarea(uint32 * x, uint32 * y, uint32 * width, uint32 * height)
{
        int current_desktop;
        unsigned long nitems_return;
        unsigned char *prop_return;
        uint32 *return_words;
        const uint32 net_workarea_x_offset = 0;
        const uint32 net_workarea_y_offset = 1;
        const uint32 net_workarea_width_offset = 2;
        const uint32 net_workarea_height_offset = 3;
        const uint32 max_prop_length = 32 * 4;  /* Max 32 desktops */

        if (get_property_value
            (DefaultRootWindow(g_display), "_NET_WORKAREA", max_prop_length, &nitems_return,
             &prop_return, 0) < 0)
                return (-1);

        if (nitems_return % 4)
        {
                fprintf(stderr, "_NET_WORKAREA has odd length\n");
                return (-1);
        }

        current_desktop = get_current_desktop();

        if (current_desktop < 0)
                return -1;

        return_words = (uint32 *) prop_return;

        *x = return_words[current_desktop * 4 + net_workarea_x_offset];
        *y = return_words[current_desktop * 4 + net_workarea_y_offset];
        *width = return_words[current_desktop * 4 + net_workarea_width_offset];
        *height = return_words[current_desktop * 4 + net_workarea_height_offset];

        XFree(prop_return);

        return (0);

}


void
ewmh_init()
{
        /* FIXME: Use XInternAtoms */
        g_net_wm_state_maximized_vert_atom =
                XInternAtom(g_display, "_NET_WM_STATE_MAXIMIZED_VERT", False);
        g_net_wm_state_maximized_horz_atom =
                XInternAtom(g_display, "_NET_WM_STATE_MAXIMIZED_HORZ", False);
        g_net_wm_state_hidden_atom = XInternAtom(g_display, "_NET_WM_STATE_HIDDEN", False);
        g_net_wm_state_skip_taskbar_atom =
                XInternAtom(g_display, "_NET_WM_STATE_SKIP_TASKBAR", False);
        g_net_wm_state_skip_pager_atom = XInternAtom(g_display, "_NET_WM_STATE_SKIP_PAGER", False);
        g_net_wm_state_modal_atom = XInternAtom(g_display, "_NET_WM_STATE_MODAL", False);
        g_net_wm_state_atom = XInternAtom(g_display, "_NET_WM_STATE", False);
        g_net_wm_desktop_atom = XInternAtom(g_display, "_NET_WM_DESKTOP", False);
        g_net_wm_name_atom = XInternAtom(g_display, "_NET_WM_NAME", False);
        g_utf8_string_atom = XInternAtom(g_display, "UTF8_STRING", False);
}


/* 
   Get the window state: normal/minimized/maximized. 
*/
#ifndef MAKE_PROTO
int
ewmh_get_window_state(Window w)
{
        unsigned long nitems_return;
        unsigned char *prop_return;
        uint32 *return_words;
        unsigned long item;
        BOOL maximized_vert, maximized_horz, hidden;

        maximized_vert = maximized_horz = hidden = False;

        if (get_property_value(w, "_NET_WM_STATE", 64, &nitems_return, &prop_return, 0) < 0)
                return SEAMLESSRDP_NORMAL;

        return_words = (uint32 *) prop_return;

        for (item = 0; item < nitems_return; item++)
        {
                if (return_words[item] == g_net_wm_state_maximized_vert_atom)
                        maximized_vert = True;
                if (return_words[item] == g_net_wm_state_maximized_horz_atom)
                        maximized_horz = True;
                if (return_words[item] == g_net_wm_state_hidden_atom)
                        hidden = True;
        }

        XFree(prop_return);

        if (maximized_vert && maximized_horz)
                return SEAMLESSRDP_MAXIMIZED;
        else if (hidden)
                return SEAMLESSRDP_MINIMIZED;
        else
                return SEAMLESSRDP_NORMAL;
}

static int
ewmh_modify_state(Window wnd, int add, Atom atom1, Atom atom2)
{
        Status status;
        XEvent xevent;

        unsigned long nitems;
        unsigned char *props;
        uint32 *state;

        /* The spec states that the window manager must respect any
           _NET_WM_STATE attributes on a withdrawn window. In order words, we
           modify the attributes directly for withdrawn windows and ask the WM
           to do it for active windows. */
        if ((get_property_value(wnd, "WM_STATE", 64, &nitems, &props, 1) < 0)
            || ((state = (uint32 *) props)[0] == WithdrawnState))
        {
                if (add)
                {
                        Atom atoms[2];

                        atoms[0] = atom1;
                        nitems = 1;
                        if (atom2)
                        {
                                atoms[1] = atom2;
                                nitems = 2;
                        }

                        XChangeProperty(g_display, wnd, g_net_wm_state_atom, XA_ATOM,
                                        32, PropModeAppend, (unsigned char *) atoms, nitems);
                }
                else
                {
                        Atom *atoms;
                        int i;

                        if (get_property_value(wnd, "_NET_WM_STATE", 64, &nitems, &props, 1) < 0)
                                return 0;

                        atoms = (Atom *) props;

                        for (i = 0; i < nitems; i++)
                        {
                                if ((atoms[i] == atom1) || (atom2 && (atoms[i] == atom2)))
                                {
                                        if (i != (nitems - 1))
                                                memmove(&atoms[i], &atoms[i + 1],
                                                        sizeof(Atom) * (nitems - i - 1));
                                        nitems--;
                                        i--;
                                }
                        }

                        XChangeProperty(g_display, wnd, g_net_wm_state_atom, XA_ATOM,
                                        32, PropModeReplace, (unsigned char *) atoms, nitems);
                }

                return 0;
        }

        xevent.type = ClientMessage;
        xevent.xclient.window = wnd;
        xevent.xclient.message_type = g_net_wm_state_atom;
        xevent.xclient.format = 32;
        if (add)
                xevent.xclient.data.l[0] = _NET_WM_STATE_ADD;
        else
                xevent.xclient.data.l[0] = _NET_WM_STATE_REMOVE;
        xevent.xclient.data.l[1] = atom1;
        xevent.xclient.data.l[2] = atom2;
        xevent.xclient.data.l[3] = 0;
        xevent.xclient.data.l[4] = 0;
        status = XSendEvent(g_display, DefaultRootWindow(g_display), False,
                            SubstructureNotifyMask | SubstructureRedirectMask, &xevent);
        if (!status)
                return -1;

        return 0;
}

/* 
   Set the window state: normal/minimized/maximized. 
   Returns -1 on failure. 
*/
int
ewmh_change_state(Window wnd, int state)
{
        /*
         * Deal with the max atoms
         */
        if (state == SEAMLESSRDP_MAXIMIZED)
        {
                if (ewmh_modify_state
                    (wnd, 1, g_net_wm_state_maximized_vert_atom,
                     g_net_wm_state_maximized_horz_atom) < 0)
                        return -1;
        }
        else
        {
                if (ewmh_modify_state
                    (wnd, 0, g_net_wm_state_maximized_vert_atom,
                     g_net_wm_state_maximized_horz_atom) < 0)
                        return -1;
        }

        return 0;
}


int
ewmh_get_window_desktop(Window wnd)
{
        unsigned long nitems_return;
        unsigned char *prop_return;
        int desktop;

        if (get_property_value(wnd, "_NET_WM_DESKTOP", 1, &nitems_return, &prop_return, 0) < 0)
                return (-1);

        if (nitems_return != 1)
        {
                fprintf(stderr, "_NET_WM_DESKTOP has bad length\n");
                return (-1);
        }

        desktop = *prop_return;
        XFree(prop_return);
        return desktop;
}


int
ewmh_move_to_desktop(Window wnd, unsigned int desktop)
{
        Status status;
        XEvent xevent;

        xevent.type = ClientMessage;
        xevent.xclient.window = wnd;
        xevent.xclient.message_type = g_net_wm_desktop_atom;
        xevent.xclient.format = 32;
        xevent.xclient.data.l[0] = desktop;
        xevent.xclient.data.l[1] = 0;
        xevent.xclient.data.l[2] = 0;
        xevent.xclient.data.l[3] = 0;
        xevent.xclient.data.l[4] = 0;
        status = XSendEvent(g_display, DefaultRootWindow(g_display), False,
                            SubstructureNotifyMask | SubstructureRedirectMask, &xevent);
        if (!status)
                return -1;

        return 0;
}

void
ewmh_set_wm_name(Window wnd, const char *title)
{
        int len;

        len = strlen(title);
        XChangeProperty(g_display, wnd, g_net_wm_name_atom, g_utf8_string_atom,
                        8, PropModeReplace, (unsigned char *) title, len);
}


int
ewmh_set_window_popup(Window wnd)
{
        if (ewmh_modify_state
            (wnd, 1, g_net_wm_state_skip_taskbar_atom, g_net_wm_state_skip_pager_atom) < 0)
                return -1;
        return 0;
}

int
ewmh_set_window_modal(Window wnd)
{
        if (ewmh_modify_state(wnd, 1, g_net_wm_state_modal_atom, 0) < 0)
                return -1;
        return 0;
}

#endif /* MAKE_PROTO */


#if 0

/* FIXME: _NET_MOVERESIZE_WINDOW is for pagers, not for
   applications. We should implement _NET_WM_MOVERESIZE instead */

int
ewmh_net_moveresize_window(Window wnd, int x, int y, int width, int height)
{
        Status status;
        XEvent xevent;
        Atom moveresize;

        moveresize = XInternAtom(g_display, "_NET_MOVERESIZE_WINDOW", False);
        if (!moveresize)
        {
                return -1;
        }

        xevent.type = ClientMessage;
        xevent.xclient.window = wnd;
        xevent.xclient.message_type = moveresize;
        xevent.xclient.format = 32;
        xevent.xclient.data.l[0] = StaticGravity | (1 << 8) | (1 << 9) | (1 << 10) | (1 << 11);
        xevent.xclient.data.l[1] = x;
        xevent.xclient.data.l[2] = y;
        xevent.xclient.data.l[3] = width;
        xevent.xclient.data.l[4] = height;

        status = XSendEvent(g_display, DefaultRootWindow(g_display), False,
                            SubstructureNotifyMask | SubstructureRedirectMask, &xevent);
        if (!status)
                return -1;
        return 0;
}

#endif
1	/* -- c-basic-offset: 8 --
2	rdesktop: A Remote Desktop Protocol client.
3
4	Support functions for Extended Window Manager Hints,
5	http://www.freedesktop.org/wiki/Standards_2fwm_2dspec
6
7	Copyright (C) Peter Astrand <astrand@cendio.se> 2005
8
9	This program is free software; you can redistribute it and/or modify
10	it under the terms of the GNU General Public License as published by
11	the Free Software Foundation; either version 2 of the License, or
12	(at your option) any later version.
13
14	This program is distributed in the hope that it will be useful,
15	but WITHOUT ANY WARRANTY; without even the implied warranty of
16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17	GNU General Public License for more details.
18
19	You should have received a copy of the GNU General Public License
20	along with this program; if not, write to the Free Software
21	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22	*/
23
24	#include <X11/Xlib.h>
25	#include <X11/Xatom.h>
26	#include <X11/Xutil.h>
27	#include "rdesktop.h"
28
29	#define _NET_WM_STATE_REMOVE 0 /* remove/unset property */
30	#define _NET_WM_STATE_ADD 1 /* add/set property */
31	#define _NET_WM_STATE_TOGGLE 2 /* toggle property */
32
33	extern Display *g_display;
34
35	static Atom g_net_wm_state_maximized_vert_atom, g_net_wm_state_maximized_horz_atom,
36	g_net_wm_state_hidden_atom, g_net_wm_name_atom, g_utf8_string_atom,
37	g_net_wm_state_skip_taskbar_atom, g_net_wm_state_skip_pager_atom, g_net_wm_state_modal_atom;
38
39	Atom g_net_wm_state_atom, g_net_wm_desktop_atom;
40
41	/*
42	Get window property value (32 bit format)
43	Returns zero on success, -1 on error
44	*/
45	static int
46	get_property_value(Window wnd, char *propname, long max_length,
47	unsigned long nitems_return, unsigned char *prop_return, int nowarn)
48	{
49	int result;
50	Atom property;
51	Atom actual_type_return;
52	int actual_format_return;
53	unsigned long bytes_after_return;
54
55	property = XInternAtom(g_display, propname, True);
56	if (property == None)
57	{
58	fprintf(stderr, "Atom %s does not exist\n", propname);
59	return (-1);
60	}
61
62	result = XGetWindowProperty(g_display, wnd, property, 0, /* long_offset */
63	max_length, /* long_length */
64	False, /* delete */
65	AnyPropertyType, /* req_type */
66	&actual_type_return,
67	&actual_format_return,
68	nitems_return, &bytes_after_return, prop_return);
69
70	if (result != Success)
71	{
72	fprintf(stderr, "XGetWindowProperty failed\n");
73	return (-1);
74	}
75
76	if (actual_type_return == None \|\| actual_format_return == 0)
77	{
78	if (!nowarn)
79	fprintf(stderr, "Window is missing property %s\n", propname);
80	return (-1);
81	}
82
83	if (bytes_after_return)
84	{
85	fprintf(stderr, "%s is too big for me\n", propname);
86	return (-1);
87	}
88
89	if (actual_format_return != 32)
90	{
91	fprintf(stderr, "%s has bad format\n", propname);
92	return (-1);
93	}
94
95	return (0);
96	}
97
98	/*
99	Get current desktop number
100	Returns -1 on error
101	*/
102	static int
103	get_current_desktop(void)
104	{
105	unsigned long nitems_return;
106	unsigned char *prop_return;
107	int current_desktop;
108
109	if (get_property_value
110	(DefaultRootWindow(g_display), "_NET_CURRENT_DESKTOP", 1, &nitems_return,
111	&prop_return, 0) < 0)
112	return (-1);
113
114	if (nitems_return != 1)
115	{
116	fprintf(stderr, "_NET_CURRENT_DESKTOP has bad length\n");
117	return (-1);
118	}
119
120	current_desktop = *prop_return;
121	XFree(prop_return);
122	return current_desktop;
123	}
124
125	/*
126	Get workarea geometry
127	Returns zero on success, -1 on error
128	*/
129
130	int
131	get_current_workarea(uint32 * x, uint32 * y, uint32 * width, uint32 * height)
132	{
133	int current_desktop;
134	unsigned long nitems_return;
135	unsigned char *prop_return;
136	uint32 *return_words;
137	const uint32 net_workarea_x_offset = 0;
138	const uint32 net_workarea_y_offset = 1;
139	const uint32 net_workarea_width_offset = 2;
140	const uint32 net_workarea_height_offset = 3;
141	const uint32 max_prop_length = 32 * 4; /* Max 32 desktops */
142
143	if (get_property_value
144	(DefaultRootWindow(g_display), "_NET_WORKAREA", max_prop_length, &nitems_return,
145	&prop_return, 0) < 0)
146	return (-1);
147
148	if (nitems_return % 4)
149	{
150	fprintf(stderr, "_NET_WORKAREA has odd length\n");
151	return (-1);
152	}
153
154	current_desktop = get_current_desktop();
155
156	if (current_desktop < 0)
157	return -1;
158
159	return_words = (uint32 *) prop_return;
160
161	x = return_words[current_desktop 4 + net_workarea_x_offset];
162	y = return_words[current_desktop 4 + net_workarea_y_offset];
163	width = return_words[current_desktop 4 + net_workarea_width_offset];
164	height = return_words[current_desktop 4 + net_workarea_height_offset];
165
166	XFree(prop_return);
167
168	return (0);
169
170	}
171
172
173
174	void
175	ewmh_init()
176	{
177	/* FIXME: Use XInternAtoms */
178	g_net_wm_state_maximized_vert_atom =
179	XInternAtom(g_display, "_NET_WM_STATE_MAXIMIZED_VERT", False);
180	g_net_wm_state_maximized_horz_atom =
181	XInternAtom(g_display, "_NET_WM_STATE_MAXIMIZED_HORZ", False);
182	g_net_wm_state_hidden_atom = XInternAtom(g_display, "_NET_WM_STATE_HIDDEN", False);
183	g_net_wm_state_skip_taskbar_atom =
184	XInternAtom(g_display, "_NET_WM_STATE_SKIP_TASKBAR", False);
185	g_net_wm_state_skip_pager_atom = XInternAtom(g_display, "_NET_WM_STATE_SKIP_PAGER", False);
186	g_net_wm_state_modal_atom = XInternAtom(g_display, "_NET_WM_STATE_MODAL", False);
187	g_net_wm_state_atom = XInternAtom(g_display, "_NET_WM_STATE", False);
188	g_net_wm_desktop_atom = XInternAtom(g_display, "_NET_WM_DESKTOP", False);
189	g_net_wm_name_atom = XInternAtom(g_display, "_NET_WM_NAME", False);
190	g_utf8_string_atom = XInternAtom(g_display, "UTF8_STRING", False);
191	}
192
193
194	/*
195	Get the window state: normal/minimized/maximized.
196	*/
197	#ifndef MAKE_PROTO
198	int
199	ewmh_get_window_state(Window w)
200	{
201	unsigned long nitems_return;
202	unsigned char *prop_return;
203	uint32 *return_words;
204	unsigned long item;
205	BOOL maximized_vert, maximized_horz, hidden;
206
207	maximized_vert = maximized_horz = hidden = False;
208
209	if (get_property_value(w, "_NET_WM_STATE", 64, &nitems_return, &prop_return, 0) < 0)
210	return SEAMLESSRDP_NORMAL;
211
212	return_words = (uint32 *) prop_return;
213
214	for (item = 0; item < nitems_return; item++)
215	{
216	if (return_words[item] == g_net_wm_state_maximized_vert_atom)
217	maximized_vert = True;
218	if (return_words[item] == g_net_wm_state_maximized_horz_atom)
219	maximized_horz = True;
220	if (return_words[item] == g_net_wm_state_hidden_atom)
221	hidden = True;
222	}
223
224	XFree(prop_return);
225
226	if (maximized_vert && maximized_horz)
227	return SEAMLESSRDP_MAXIMIZED;
228	else if (hidden)
229	return SEAMLESSRDP_MINIMIZED;
230	else
231	return SEAMLESSRDP_NORMAL;
232	}
233
234	static int
235	ewmh_modify_state(Window wnd, int add, Atom atom1, Atom atom2)
236	{
237	Status status;
238	XEvent xevent;
239
240	unsigned long nitems;
241	unsigned char *props;
242	uint32 *state;
243
244	/* The spec states that the window manager must respect any
245	_NET_WM_STATE attributes on a withdrawn window. In order words, we
246	modify the attributes directly for withdrawn windows and ask the WM
247	to do it for active windows. */
248	if ((get_property_value(wnd, "WM_STATE", 64, &nitems, &props, 1) < 0)
249	\|\| ((state = (uint32 *) props)[0] == WithdrawnState))
250	{
251	if (add)
252	{
253	Atom atoms[2];
254
255	atoms[0] = atom1;
256	nitems = 1;
257	if (atom2)
258	{
259	atoms[1] = atom2;
260	nitems = 2;
261	}
262
263	XChangeProperty(g_display, wnd, g_net_wm_state_atom, XA_ATOM,
264	32, PropModeAppend, (unsigned char *) atoms, nitems);
265	}
266	else
267	{
268	Atom *atoms;
269	int i;
270
271	if (get_property_value(wnd, "_NET_WM_STATE", 64, &nitems, &props, 1) < 0)
272	return 0;
273
274	atoms = (Atom *) props;
275
276	for (i = 0; i < nitems; i++)
277	{
278	if ((atoms[i] == atom1) \|\| (atom2 && (atoms[i] == atom2)))
279	{
280	if (i != (nitems - 1))
281	memmove(&atoms[i], &atoms[i + 1],
282	sizeof(Atom) * (nitems - i - 1));
283	nitems--;
284	i--;
285	}
286	}
287
288	XChangeProperty(g_display, wnd, g_net_wm_state_atom, XA_ATOM,
289	32, PropModeReplace, (unsigned char *) atoms, nitems);
290	}
291
292	return 0;
293	}
294
295	xevent.type = ClientMessage;
296	xevent.xclient.window = wnd;
297	xevent.xclient.message_type = g_net_wm_state_atom;
298	xevent.xclient.format = 32;
299	if (add)
300	xevent.xclient.data.l[0] = _NET_WM_STATE_ADD;
301	else
302	xevent.xclient.data.l[0] = _NET_WM_STATE_REMOVE;
303	xevent.xclient.data.l[1] = atom1;
304	xevent.xclient.data.l[2] = atom2;
305	xevent.xclient.data.l[3] = 0;
306	xevent.xclient.data.l[4] = 0;
307	status = XSendEvent(g_display, DefaultRootWindow(g_display), False,
308	SubstructureNotifyMask \| SubstructureRedirectMask, &xevent);
309	if (!status)
310	return -1;
311
312	return 0;
313	}
314
315	/*
316	Set the window state: normal/minimized/maximized.
317	Returns -1 on failure.
318	*/
319	int
320	ewmh_change_state(Window wnd, int state)
321	{
322	/*
323	* Deal with the max atoms
324	*/
325	if (state == SEAMLESSRDP_MAXIMIZED)
326	{
327	if (ewmh_modify_state
328	(wnd, 1, g_net_wm_state_maximized_vert_atom,
329	g_net_wm_state_maximized_horz_atom) < 0)
330	return -1;
331	}
332	else
333	{
334	if (ewmh_modify_state
335	(wnd, 0, g_net_wm_state_maximized_vert_atom,
336	g_net_wm_state_maximized_horz_atom) < 0)
337	return -1;
338	}
339
340	return 0;
341	}
342
343
344	int
345	ewmh_get_window_desktop(Window wnd)
346	{
347	unsigned long nitems_return;
348	unsigned char *prop_return;
349	int desktop;
350
351	if (get_property_value(wnd, "_NET_WM_DESKTOP", 1, &nitems_return, &prop_return, 0) < 0)
352	return (-1);
353
354	if (nitems_return != 1)
355	{
356	fprintf(stderr, "_NET_WM_DESKTOP has bad length\n");
357	return (-1);
358	}
359
360	desktop = *prop_return;
361	XFree(prop_return);
362	return desktop;
363	}
364
365
366	int
367	ewmh_move_to_desktop(Window wnd, unsigned int desktop)
368	{
369	Status status;
370	XEvent xevent;
371
372	xevent.type = ClientMessage;
373	xevent.xclient.window = wnd;
374	xevent.xclient.message_type = g_net_wm_desktop_atom;
375	xevent.xclient.format = 32;
376	xevent.xclient.data.l[0] = desktop;
377	xevent.xclient.data.l[1] = 0;
378	xevent.xclient.data.l[2] = 0;
379	xevent.xclient.data.l[3] = 0;
380	xevent.xclient.data.l[4] = 0;
381	status = XSendEvent(g_display, DefaultRootWindow(g_display), False,
382	SubstructureNotifyMask \| SubstructureRedirectMask, &xevent);
383	if (!status)
384	return -1;
385
386	return 0;
387	}
388
389	void
390	ewmh_set_wm_name(Window wnd, const char *title)
391	{
392	int len;
393
394	len = strlen(title);
395	XChangeProperty(g_display, wnd, g_net_wm_name_atom, g_utf8_string_atom,
396	8, PropModeReplace, (unsigned char *) title, len);
397	}
398
399
400	int
401	ewmh_set_window_popup(Window wnd)
402	{
403	if (ewmh_modify_state
404	(wnd, 1, g_net_wm_state_skip_taskbar_atom, g_net_wm_state_skip_pager_atom) < 0)
405	return -1;
406	return 0;
407	}
408
409	int
410	ewmh_set_window_modal(Window wnd)
411	{
412	if (ewmh_modify_state(wnd, 1, g_net_wm_state_modal_atom, 0) < 0)
413	return -1;
414	return 0;
415	}
416
417	#endif /* MAKE_PROTO */
418
419
420	#if 0
421
422	/* FIXME: _NET_MOVERESIZE_WINDOW is for pagers, not for
423	applications. We should implement _NET_WM_MOVERESIZE instead */
424
425	int
426	ewmh_net_moveresize_window(Window wnd, int x, int y, int width, int height)
427	{
428	Status status;
429	XEvent xevent;
430	Atom moveresize;
431
432	moveresize = XInternAtom(g_display, "_NET_MOVERESIZE_WINDOW", False);
433	if (!moveresize)
434	{
435	return -1;
436	}
437
438	xevent.type = ClientMessage;
439	xevent.xclient.window = wnd;
440	xevent.xclient.message_type = moveresize;
441	xevent.xclient.format = 32;
442	xevent.xclient.data.l[0] = StaticGravity \| (1 << 8) \| (1 << 9) \| (1 << 10) \| (1 << 11);
443	xevent.xclient.data.l[1] = x;
444	xevent.xclient.data.l[2] = y;
445	xevent.xclient.data.l[3] = width;
446	xevent.xclient.data.l[4] = height;
447
448	status = XSendEvent(g_display, DefaultRootWindow(g_display), False,
449	SubstructureNotifyMask \| SubstructureRedirectMask, &xevent);
450	if (!status)
451	return -1;
452	return 0;
453	}
454
455	#endif