rdesktop/trunk/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 2005 Peter Astrand <astrand@cendio.se> for Cendio AB
   Copyright 2007 Pierre Ossman <ossman@cendio.se> for Cendio AB
   
   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, g_net_wm_icon_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_net_wm_icon_atom = XInternAtom(g_display, "_NET_WM_ICON", 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;
        RD_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;

        int result;
        unsigned long nitems;
        unsigned char *props;
        uint32 state = WithdrawnState;

        /* 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. */
        result = get_property_value(wnd, "WM_STATE", 64, &nitems, &props, 1);
        if ((result >= 0) && nitems)
        {
                state = *(uint32 *) props;
                XFree(props);
        }

        if (state == 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);

                        XFree(props);
                }

                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;
}

void
ewmh_set_icon(Window wnd, int width, int height, const char *rgba_data)
{
        unsigned long nitems, i;
        unsigned char *props;
        uint32 *cur_set, *new_set;
        uint32 *icon;

        cur_set = NULL;
        new_set = NULL;

        if (get_property_value(wnd, "_NET_WM_ICON", 10000, &nitems, &props, 1) >= 0)
        {
                cur_set = (uint32 *) props;

                for (i = 0; i < nitems;)
                {
                        if (cur_set[i] == width && cur_set[i + 1] == height)
                                break;

                        i += 2 + cur_set[i] * cur_set[i + 1];
                }

                if (i != nitems)
                        icon = cur_set + i;
                else
                {
                        new_set = xmalloc((nitems + width * height + 2) * 4);
                        memcpy(new_set, cur_set, nitems * 4);
                        icon = new_set + nitems;
                        nitems += width * height + 2;
                }
        }
        else
        {
                new_set = xmalloc((width * height + 2) * 4);
                icon = new_set;
                nitems = width * height + 2;
        }

        icon[0] = width;
        icon[1] = height;

        /* Convert RGBA -> ARGB */
        for (i = 0; i < width * height; i++)
        {
                icon[i + 2] =
                        rgba_data[i * 4 + 3] << 24 |
                        ((rgba_data[i * 4 + 0] << 16) & 0x00FF0000) |
                        ((rgba_data[i * 4 + 1] << 8) & 0x0000FF00) |
                        ((rgba_data[i * 4 + 2] << 0) & 0x000000FF);
        }

        XChangeProperty(g_display, wnd, g_net_wm_icon_atom, XA_CARDINAL, 32,
                        PropModeReplace, (unsigned char *) (new_set ? new_set : cur_set), nitems);

        if (cur_set)
                XFree(cur_set);
        if (new_set)
                xfree(new_set);
}

void
ewmh_del_icon(Window wnd, int width, int height)
{
        unsigned long nitems, i, icon_size;
        unsigned char *props;
        uint32 *cur_set, *new_set;

        cur_set = NULL;
        new_set = NULL;

        if (get_property_value(wnd, "_NET_WM_ICON", 10000, &nitems, &props, 1) < 0)
                return;

        cur_set = (uint32 *) props;

        for (i = 0; i < nitems;)
        {
                if (cur_set[i] == width && cur_set[i + 1] == height)
                        break;

                i += 2 + cur_set[i] * cur_set[i + 1];
        }

        if (i == nitems)
                goto out;

        icon_size = width * height + 2;
        new_set = xmalloc((nitems - icon_size) * 4);

        if (i != 0)
                memcpy(new_set, cur_set, i * 4);
        if (i != nitems - icon_size)
                memcpy(new_set + i * 4, cur_set + i * 4 + icon_size, nitems - icon_size);

        nitems -= icon_size;

        XChangeProperty(g_display, wnd, g_net_wm_icon_atom, XA_CARDINAL, 32,
                        PropModeReplace, (unsigned char *) new_set, nitems);

        xfree(new_set);

      out:
        XFree(cur_set);
}

#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	astrand	963	/* -- c-basic-offset: 8 --
2	astrand	263	rdesktop: A Remote Desktop Protocol client.
3
4			Support functions for Extended Window Manager Hints,
5	astrand	1013	http://www.freedesktop.org/wiki/Standards_2fwm_2dspec
6	astrand	263
7	ossman_	1413	Copyright 2005 Peter Astrand <astrand@cendio.se> for Cendio AB
8			Copyright 2007 Pierre Ossman <ossman@cendio.se> for Cendio AB
9	astrand	263
10			This program is free software; you can redistribute it and/or modify
11			it under the terms of the GNU General Public License as published by
12			the Free Software Foundation; either version 2 of the License, or
13			(at your option) any later version.
14
15			This program is distributed in the hope that it will be useful,
16			but WITHOUT ANY WARRANTY; without even the implied warranty of
17			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18			GNU General Public License for more details.
19
20			You should have received a copy of the GNU General Public License
21			along with this program; if not, write to the Free Software
22			Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23			*/
24
25	astrand	266	#include <X11/Xlib.h>
26	astrand	1199	#include <X11/Xatom.h>
27			#include <X11/Xutil.h>
28	astrand	263	#include "rdesktop.h"
29
30	astrand	1199	#define _NET_WM_STATE_REMOVE 0 /* remove/unset property */
31			#define _NET_WM_STATE_ADD 1 /* add/set property */
32			#define _NET_WM_STATE_TOGGLE 2 /* toggle property */
33
34	jsorg71	450	extern Display *g_display;
35	astrand	263
36	astrand	1199	static Atom g_net_wm_state_maximized_vert_atom, g_net_wm_state_maximized_horz_atom,
37			g_net_wm_state_hidden_atom, g_net_wm_name_atom, g_utf8_string_atom,
38	ossman_	1413	g_net_wm_state_skip_taskbar_atom, g_net_wm_state_skip_pager_atom,
39			g_net_wm_state_modal_atom, g_net_wm_icon_atom;
40	astrand	1199
41			Atom g_net_wm_state_atom, g_net_wm_desktop_atom;
42
43	astrand	263	/*
44			Get window property value (32 bit format)
45			Returns zero on success, -1 on error
46			*/
47			static int
48	astrand	1199	get_property_value(Window wnd, char *propname, long max_length,
49			unsigned long nitems_return, unsigned char *prop_return, int nowarn)
50	astrand	263	{
51			int result;
52			Atom property;
53			Atom actual_type_return;
54			int actual_format_return;
55			unsigned long bytes_after_return;
56
57	jsorg71	450	property = XInternAtom(g_display, propname, True);
58	astrand	263	if (property == None)
59			{
60			fprintf(stderr, "Atom %s does not exist\n", propname);
61			return (-1);
62			}
63
64	astrand	1199	result = XGetWindowProperty(g_display, wnd, property, 0, /* long_offset */
65	astrand	263	max_length, /* long_length */
66			False, /* delete */
67			AnyPropertyType, /* req_type */
68			&actual_type_return,
69			&actual_format_return,
70			nitems_return, &bytes_after_return, prop_return);
71
72			if (result != Success)
73			{
74			fprintf(stderr, "XGetWindowProperty failed\n");
75			return (-1);
76			}
77
78			if (actual_type_return == None \|\| actual_format_return == 0)
79			{
80	astrand	1199	if (!nowarn)
81			fprintf(stderr, "Window is missing property %s\n", propname);
82	astrand	263	return (-1);
83			}
84
85			if (bytes_after_return)
86			{
87			fprintf(stderr, "%s is too big for me\n", propname);
88			return (-1);
89			}
90
91			if (actual_format_return != 32)
92			{
93			fprintf(stderr, "%s has bad format\n", propname);
94			return (-1);
95			}
96
97			return (0);
98			}
99
100			/*
101			Get current desktop number
102			Returns -1 on error
103			*/
104			static int
105	matthewc	300	get_current_desktop(void)
106	astrand	263	{
107			unsigned long nitems_return;
108	astrand	464	unsigned char *prop_return;
109	astrand	263	int current_desktop;
110
111	astrand	1199	if (get_property_value
112			(DefaultRootWindow(g_display), "_NET_CURRENT_DESKTOP", 1, &nitems_return,
113			&prop_return, 0) < 0)
114	astrand	263	return (-1);
115
116			if (nitems_return != 1)
117			{
118			fprintf(stderr, "_NET_CURRENT_DESKTOP has bad length\n");
119			return (-1);
120			}
121
122			current_desktop = *prop_return;
123			XFree(prop_return);
124			return current_desktop;
125			}
126
127			/*
128			Get workarea geometry
129			Returns zero on success, -1 on error
130			*/
131
132			int
133			get_current_workarea(uint32 * x, uint32 * y, uint32 * width, uint32 * height)
134			{
135			int current_desktop;
136			unsigned long nitems_return;
137	astrand	464	unsigned char *prop_return;
138			uint32 *return_words;
139	astrand	263	const uint32 net_workarea_x_offset = 0;
140			const uint32 net_workarea_y_offset = 1;
141			const uint32 net_workarea_width_offset = 2;
142			const uint32 net_workarea_height_offset = 3;
143			const uint32 max_prop_length = 32 * 4; /* Max 32 desktops */
144
145	astrand	1199	if (get_property_value
146			(DefaultRootWindow(g_display), "_NET_WORKAREA", max_prop_length, &nitems_return,
147			&prop_return, 0) < 0)
148	astrand	263	return (-1);
149
150			if (nitems_return % 4)
151			{
152			fprintf(stderr, "_NET_WORKAREA has odd length\n");
153			return (-1);
154			}
155
156			current_desktop = get_current_desktop();
157
158			if (current_desktop < 0)
159			return -1;
160
161	astrand	468	return_words = (uint32 *) prop_return;
162	astrand	263
163	astrand	464	x = return_words[current_desktop 4 + net_workarea_x_offset];
164			y = return_words[current_desktop 4 + net_workarea_y_offset];
165			width = return_words[current_desktop 4 + net_workarea_width_offset];
166			height = return_words[current_desktop 4 + net_workarea_height_offset];
167
168	astrand	263	XFree(prop_return);
169
170			return (0);
171
172			}
173	astrand	1013
174
175	astrand	1199
176			void
177			ewmh_init()
178			{
179			/* FIXME: Use XInternAtoms */
180			g_net_wm_state_maximized_vert_atom =
181			XInternAtom(g_display, "_NET_WM_STATE_MAXIMIZED_VERT", False);
182			g_net_wm_state_maximized_horz_atom =
183			XInternAtom(g_display, "_NET_WM_STATE_MAXIMIZED_HORZ", False);
184			g_net_wm_state_hidden_atom = XInternAtom(g_display, "_NET_WM_STATE_HIDDEN", False);
185			g_net_wm_state_skip_taskbar_atom =
186			XInternAtom(g_display, "_NET_WM_STATE_SKIP_TASKBAR", False);
187			g_net_wm_state_skip_pager_atom = XInternAtom(g_display, "_NET_WM_STATE_SKIP_PAGER", False);
188			g_net_wm_state_modal_atom = XInternAtom(g_display, "_NET_WM_STATE_MODAL", False);
189			g_net_wm_state_atom = XInternAtom(g_display, "_NET_WM_STATE", False);
190			g_net_wm_desktop_atom = XInternAtom(g_display, "_NET_WM_DESKTOP", False);
191			g_net_wm_name_atom = XInternAtom(g_display, "_NET_WM_NAME", False);
192	ossman_	1413	g_net_wm_icon_atom = XInternAtom(g_display, "_NET_WM_ICON", False);
193	astrand	1199	g_utf8_string_atom = XInternAtom(g_display, "UTF8_STRING", False);
194			}
195
196
197			/*
198			Get the window state: normal/minimized/maximized.
199			*/
200			#ifndef MAKE_PROTO
201			int
202			ewmh_get_window_state(Window w)
203			{
204			unsigned long nitems_return;
205			unsigned char *prop_return;
206			uint32 *return_words;
207			unsigned long item;
208	jsorg71	1372	RD_BOOL maximized_vert, maximized_horz, hidden;
209	astrand	1199
210			maximized_vert = maximized_horz = hidden = False;
211
212			if (get_property_value(w, "_NET_WM_STATE", 64, &nitems_return, &prop_return, 0) < 0)
213			return SEAMLESSRDP_NORMAL;
214
215			return_words = (uint32 *) prop_return;
216
217			for (item = 0; item < nitems_return; item++)
218			{
219			if (return_words[item] == g_net_wm_state_maximized_vert_atom)
220			maximized_vert = True;
221			if (return_words[item] == g_net_wm_state_maximized_horz_atom)
222			maximized_horz = True;
223			if (return_words[item] == g_net_wm_state_hidden_atom)
224			hidden = True;
225			}
226
227			XFree(prop_return);
228
229			if (maximized_vert && maximized_horz)
230			return SEAMLESSRDP_MAXIMIZED;
231			else if (hidden)
232			return SEAMLESSRDP_MINIMIZED;
233			else
234			return SEAMLESSRDP_NORMAL;
235			}
236
237			static int
238			ewmh_modify_state(Window wnd, int add, Atom atom1, Atom atom2)
239			{
240			Status status;
241			XEvent xevent;
242
243			int result;
244			unsigned long nitems;
245			unsigned char *props;
246	astrand	1225	uint32 state = WithdrawnState;
247	astrand	1199
248			/* The spec states that the window manager must respect any
249			_NET_WM_STATE attributes on a withdrawn window. In order words, we
250			modify the attributes directly for withdrawn windows and ask the WM
251			to do it for active windows. */
252			result = get_property_value(wnd, "WM_STATE", 64, &nitems, &props, 1);
253			if ((result >= 0) && nitems)
254			{
255			state = (uint32 ) props;
256			XFree(props);
257			}
258
259	astrand	1225	if (state == WithdrawnState)
260	astrand	1199	{
261			if (add)
262			{
263			Atom atoms[2];
264
265			atoms[0] = atom1;
266			nitems = 1;
267			if (atom2)
268			{
269			atoms[1] = atom2;
270			nitems = 2;
271			}
272
273			XChangeProperty(g_display, wnd, g_net_wm_state_atom, XA_ATOM,
274			32, PropModeAppend, (unsigned char *) atoms, nitems);
275			}
276			else
277			{
278			Atom *atoms;
279			int i;
280
281			if (get_property_value(wnd, "_NET_WM_STATE", 64, &nitems, &props, 1) < 0)
282			return 0;
283
284			atoms = (Atom *) props;
285
286			for (i = 0; i < nitems; i++)
287			{
288			if ((atoms[i] == atom1) \|\| (atom2 && (atoms[i] == atom2)))
289			{
290			if (i != (nitems - 1))
291			memmove(&atoms[i], &atoms[i + 1],
292			sizeof(Atom) * (nitems - i - 1));
293			nitems--;
294			i--;
295			}
296			}
297
298			XChangeProperty(g_display, wnd, g_net_wm_state_atom, XA_ATOM,
299			32, PropModeReplace, (unsigned char *) atoms, nitems);
300
301			XFree(props);
302			}
303
304			return 0;
305			}
306
307			xevent.type = ClientMessage;
308			xevent.xclient.window = wnd;
309			xevent.xclient.message_type = g_net_wm_state_atom;
310			xevent.xclient.format = 32;
311			if (add)
312			xevent.xclient.data.l[0] = _NET_WM_STATE_ADD;
313			else
314			xevent.xclient.data.l[0] = _NET_WM_STATE_REMOVE;
315			xevent.xclient.data.l[1] = atom1;
316			xevent.xclient.data.l[2] = atom2;
317			xevent.xclient.data.l[3] = 0;
318			xevent.xclient.data.l[4] = 0;
319			status = XSendEvent(g_display, DefaultRootWindow(g_display), False,
320			SubstructureNotifyMask \| SubstructureRedirectMask, &xevent);
321			if (!status)
322			return -1;
323
324			return 0;
325			}
326
327			/*
328			Set the window state: normal/minimized/maximized.
329			Returns -1 on failure.
330			*/
331			int
332			ewmh_change_state(Window wnd, int state)
333			{
334			/*
335			* Deal with the max atoms
336			*/
337			if (state == SEAMLESSRDP_MAXIMIZED)
338			{
339			if (ewmh_modify_state
340			(wnd, 1, g_net_wm_state_maximized_vert_atom,
341			g_net_wm_state_maximized_horz_atom) < 0)
342			return -1;
343			}
344			else
345			{
346			if (ewmh_modify_state
347			(wnd, 0, g_net_wm_state_maximized_vert_atom,
348			g_net_wm_state_maximized_horz_atom) < 0)
349			return -1;
350			}
351
352			return 0;
353			}
354
355
356			int
357			ewmh_get_window_desktop(Window wnd)
358			{
359			unsigned long nitems_return;
360			unsigned char *prop_return;
361			int desktop;
362
363			if (get_property_value(wnd, "_NET_WM_DESKTOP", 1, &nitems_return, &prop_return, 0) < 0)
364			return (-1);
365
366			if (nitems_return != 1)
367			{
368			fprintf(stderr, "_NET_WM_DESKTOP has bad length\n");
369			return (-1);
370			}
371
372			desktop = *prop_return;
373			XFree(prop_return);
374			return desktop;
375			}
376
377
378			int
379			ewmh_move_to_desktop(Window wnd, unsigned int desktop)
380			{
381			Status status;
382			XEvent xevent;
383
384			xevent.type = ClientMessage;
385			xevent.xclient.window = wnd;
386			xevent.xclient.message_type = g_net_wm_desktop_atom;
387			xevent.xclient.format = 32;
388			xevent.xclient.data.l[0] = desktop;
389			xevent.xclient.data.l[1] = 0;
390			xevent.xclient.data.l[2] = 0;
391			xevent.xclient.data.l[3] = 0;
392			xevent.xclient.data.l[4] = 0;
393			status = XSendEvent(g_display, DefaultRootWindow(g_display), False,
394			SubstructureNotifyMask \| SubstructureRedirectMask, &xevent);
395			if (!status)
396			return -1;
397
398			return 0;
399			}
400
401			void
402			ewmh_set_wm_name(Window wnd, const char *title)
403			{
404			int len;
405
406			len = strlen(title);
407			XChangeProperty(g_display, wnd, g_net_wm_name_atom, g_utf8_string_atom,
408			8, PropModeReplace, (unsigned char *) title, len);
409			}
410
411
412			int
413			ewmh_set_window_popup(Window wnd)
414			{
415			if (ewmh_modify_state
416			(wnd, 1, g_net_wm_state_skip_taskbar_atom, g_net_wm_state_skip_pager_atom) < 0)
417			return -1;
418			return 0;
419			}
420
421			int
422			ewmh_set_window_modal(Window wnd)
423			{
424			if (ewmh_modify_state(wnd, 1, g_net_wm_state_modal_atom, 0) < 0)
425			return -1;
426			return 0;
427			}
428
429	ossman_	1413	void
430			ewmh_set_icon(Window wnd, int width, int height, const char *rgba_data)
431			{
432			unsigned long nitems, i;
433			unsigned char *props;
434			uint32 cur_set, new_set;
435			uint32 *icon;
436
437			cur_set = NULL;
438			new_set = NULL;
439
440			if (get_property_value(wnd, "_NET_WM_ICON", 10000, &nitems, &props, 1) >= 0)
441			{
442			cur_set = (uint32 *) props;
443
444			for (i = 0; i < nitems;)
445			{
446			if (cur_set[i] == width && cur_set[i + 1] == height)
447			break;
448
449			i += 2 + cur_set[i] * cur_set[i + 1];
450			}
451
452			if (i != nitems)
453			icon = cur_set + i;
454			else
455			{
456			new_set = xmalloc((nitems + width * height + 2) * 4);
457			memcpy(new_set, cur_set, nitems * 4);
458			icon = new_set + nitems;
459			nitems += width * height + 2;
460			}
461			}
462			else
463			{
464			new_set = xmalloc((width * height + 2) * 4);
465			icon = new_set;
466			nitems = width * height + 2;
467			}
468
469			icon[0] = width;
470			icon[1] = height;
471
472			/* Convert RGBA -> ARGB */
473			for (i = 0; i < width * height; i++)
474			{
475			icon[i + 2] =
476			rgba_data[i * 4 + 3] << 24 \|
477			((rgba_data[i * 4 + 0] << 16) & 0x00FF0000) \|
478			((rgba_data[i * 4 + 1] << 8) & 0x0000FF00) \|
479			((rgba_data[i * 4 + 2] << 0) & 0x000000FF);
480			}
481
482			XChangeProperty(g_display, wnd, g_net_wm_icon_atom, XA_CARDINAL, 32,
483			PropModeReplace, (unsigned char *) (new_set ? new_set : cur_set), nitems);
484
485			if (cur_set)
486			XFree(cur_set);
487			if (new_set)
488			xfree(new_set);
489			}
490
491			void
492			ewmh_del_icon(Window wnd, int width, int height)
493			{
494			unsigned long nitems, i, icon_size;
495			unsigned char *props;
496			uint32 cur_set, new_set;
497
498			cur_set = NULL;
499			new_set = NULL;
500
501			if (get_property_value(wnd, "_NET_WM_ICON", 10000, &nitems, &props, 1) < 0)
502			return;
503
504			cur_set = (uint32 *) props;
505
506			for (i = 0; i < nitems;)
507			{
508			if (cur_set[i] == width && cur_set[i + 1] == height)
509			break;
510
511			i += 2 + cur_set[i] * cur_set[i + 1];
512			}
513
514			if (i == nitems)
515			goto out;
516
517			icon_size = width * height + 2;
518			new_set = xmalloc((nitems - icon_size) * 4);
519
520			if (i != 0)
521			memcpy(new_set, cur_set, i * 4);
522			if (i != nitems - icon_size)
523			memcpy(new_set + i * 4, cur_set + i * 4 + icon_size, nitems - icon_size);
524
525			nitems -= icon_size;
526
527			XChangeProperty(g_display, wnd, g_net_wm_icon_atom, XA_CARDINAL, 32,
528			PropModeReplace, (unsigned char *) new_set, nitems);
529
530			xfree(new_set);
531
532			out:
533			XFree(cur_set);
534			}
535
536	astrand	1199	#endif /* MAKE_PROTO */
537
538
539	astrand	1013	#if 0
540
541			/* FIXME: _NET_MOVERESIZE_WINDOW is for pagers, not for
542			applications. We should implement _NET_WM_MOVERESIZE instead */
543
544			int
545			ewmh_net_moveresize_window(Window wnd, int x, int y, int width, int height)
546			{
547			Status status;
548			XEvent xevent;
549			Atom moveresize;
550
551			moveresize = XInternAtom(g_display, "_NET_MOVERESIZE_WINDOW", False);
552			if (!moveresize)
553			{
554			return -1;
555			}
556
557			xevent.type = ClientMessage;
558			xevent.xclient.window = wnd;
559			xevent.xclient.message_type = moveresize;
560			xevent.xclient.format = 32;
561			xevent.xclient.data.l[0] = StaticGravity \| (1 << 8) \| (1 << 9) \| (1 << 10) \| (1 << 11);
562			xevent.xclient.data.l[1] = x;
563			xevent.xclient.data.l[2] = y;
564			xevent.xclient.data.l[3] = width;
565			xevent.xclient.data.l[4] = height;
566
567			status = XSendEvent(g_display, DefaultRootWindow(g_display), False,
568			SubstructureNotifyMask \| SubstructureRedirectMask, &xevent);
569			if (!status)
570			return -1;
571			return 0;
572			}
573
574			#endif