/*
* Copyright (c) 2003, 2008, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
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*/
package sun.awt.X11;
import java.awt.*;
import sun.util.logging.PlatformLogger;
class XWINProtocol extends XProtocol implements XStateProtocol, XLayerProtocol {
final static PlatformLogger log = PlatformLogger.getLogger("sun.awt.X11.XWINProtocol");
/* Gnome WM spec */
XAtom XA_WIN_SUPPORTING_WM_CHECK = XAtom.get("_WIN_SUPPORTING_WM_CHECK");
XAtom XA_WIN_PROTOCOLS = XAtom.get("_WIN_PROTOCOLS");
XAtom XA_WIN_STATE = XAtom.get("_WIN_STATE");
public boolean supportsState(int state) {
return doStateProtocol(); // TODO - check for Frame constants
}
public void setState(XWindowPeer window, int state) {
if (window.isShowing()) {
/*
* Request state transition from a Gnome WM (_WIN protocol) by sending
* _WIN_STATE ClientMessage to root window.
*/
long win_state = 0;
if ( (state & Frame.MAXIMIZED_VERT) != 0) {
win_state |= WIN_STATE_MAXIMIZED_VERT;
}
if ( (state & Frame.MAXIMIZED_HORIZ) != 0) {
win_state |= WIN_STATE_MAXIMIZED_HORIZ;
}
XClientMessageEvent req = new XClientMessageEvent();
req.set_type(XConstants.ClientMessage);
req.set_window(window.getWindow());
req.set_message_type(XA_WIN_STATE.getAtom());
req.set_format(32);
req.set_data(0, (WIN_STATE_MAXIMIZED_HORIZ | WIN_STATE_MAXIMIZED_VERT));
req.set_data(1, win_state);
if (log.isLoggable(PlatformLogger.FINE)) log.fine("Sending WIN_STATE to root to change the state to " + win_state);
try {
XToolkit.awtLock();
XlibWrapper.XSendEvent(XToolkit.getDisplay(),
XlibWrapper.RootWindow(XToolkit.getDisplay(),
window.getScreenNumber()),
false,
XConstants.SubstructureRedirectMask | XConstants.SubstructureNotifyMask,
req.pData);
}
finally {
XToolkit.awtUnlock();
}
req.dispose();
} else {
/*
* Specify initial state for a Gnome WM (_WIN protocol) by setting
* WIN_STATE property on the window to the desired state before
* mapping it.
*/
/* Be careful to not wipe out state bits we don't understand */
long win_state = XA_WIN_STATE.getCard32Property(window);
long old_win_state = win_state;
/*
* In their stupid quest of reinventing every wheel, Gnome WM spec
* have its own "minimized" hint (instead of using initial state
* and WM_STATE hints). This is bogus, but, apparently, some WMs
* pay attention.
*/
if ((state & Frame.ICONIFIED) != 0) {
win_state |= WIN_STATE_MINIMIZED;
} else {
win_state &= ~WIN_STATE_MINIMIZED;
}
if ((state & Frame.MAXIMIZED_VERT) != 0) {
win_state |= WIN_STATE_MAXIMIZED_VERT;
} else {
win_state &= ~WIN_STATE_MAXIMIZED_VERT;
}
if ((state & Frame.MAXIMIZED_HORIZ) != 0) {
win_state |= WIN_STATE_MAXIMIZED_HORIZ;
} else {
win_state &= ~WIN_STATE_MAXIMIZED_HORIZ;
}
if ((old_win_state ^ win_state) != 0) {
if (log.isLoggable(PlatformLogger.FINE)) log.fine("Setting WIN_STATE on " + window + " to change the state to " + win_state);
XA_WIN_STATE.setCard32Property(window, win_state);
}
}
}
public int getState(XWindowPeer window) {
long win_state = XA_WIN_STATE.getCard32Property(window);
int java_state = Frame.NORMAL;
if ((win_state & WIN_STATE_MAXIMIZED_VERT) != 0) {
java_state |= Frame.MAXIMIZED_VERT;
}
if ((win_state & WIN_STATE_MAXIMIZED_HORIZ) != 0) {
java_state |= Frame.MAXIMIZED_HORIZ;
}
return java_state;
}
public boolean isStateChange(XPropertyEvent e) {
return doStateProtocol() && e.get_atom() == XA_WIN_STATE.getAtom();
}
public void unshadeKludge(XWindowPeer window) {
long win_state = XA_WIN_STATE.getCard32Property(window);
if ((win_state & WIN_STATE_SHADED) == 0) {
return;
}
win_state &= ~WIN_STATE_SHADED;
XA_WIN_STATE.setCard32Property(window, win_state);
}
public boolean supportsLayer(int layer) {
return ((layer == LAYER_ALWAYS_ON_TOP) || (layer == LAYER_NORMAL)) && doLayerProtocol();
}
public void setLayer(XWindowPeer window, int layer) {
if (window.isShowing()) {
XClientMessageEvent req = new XClientMessageEvent();
req.set_type(XConstants.ClientMessage);
req.set_window(window.getWindow());
req.set_message_type(XA_WIN_LAYER.getAtom());
req.set_format(32);
req.set_data(0, layer == LAYER_NORMAL ? WIN_LAYER_NORMAL : WIN_LAYER_ONTOP);
req.set_data(1, 0);
req.set_data(2, 0);
if (log.isLoggable(PlatformLogger.FINE)) log.fine("Setting layer " + layer + " by root message : " + req);
XToolkit.awtLock();
try {
XlibWrapper.XSendEvent(XToolkit.getDisplay(),
XlibWrapper.RootWindow(XToolkit.getDisplay(),
window.getScreenNumber()),
false,
/*XConstants.SubstructureRedirectMask | */XConstants.SubstructureNotifyMask,
req.pData);
}
finally {
XToolkit.awtUnlock();
}
req.dispose();
} else {
if (log.isLoggable(PlatformLogger.FINE)) log.fine("Setting layer property to " + layer);
XA_WIN_LAYER.setCard32Property(window, layer == LAYER_NORMAL ? WIN_LAYER_NORMAL : WIN_LAYER_ONTOP);
}
}
XAtom XA_WIN_LAYER = XAtom.get("_WIN_LAYER");
/* _WIN_STATE bits */
final static int WIN_STATE_STICKY =(1<<0); /* everyone knows sticky */
final static int WIN_STATE_MINIMIZED =(1<<1); /* Reserved - definition is unclear */
final static int WIN_STATE_MAXIMIZED_VERT =(1<<2); /* window in maximized V state */
final static int WIN_STATE_MAXIMIZED_HORIZ =(1<<3); /* window in maximized H state */
final static int WIN_STATE_HIDDEN =(1<<4); /* not on taskbar but window visible*/
final static int WIN_STATE_SHADED =(1<<5); /* shaded (MacOS / Afterstep style) */
/* _WIN_LAYER values */
final static int WIN_LAYER_ONTOP = 6;
final static int WIN_LAYER_NORMAL = 4;
long WinWindow = 0;
boolean supportChecked = false;
void detect() {
if (supportChecked) {
return;
}
WinWindow = checkAnchor(XA_WIN_SUPPORTING_WM_CHECK, XAtom.XA_CARDINAL);
supportChecked = true;
if (log.isLoggable(PlatformLogger.FINE)) log.fine("### " + this + " is active: " + (WinWindow != 0));
}
boolean active() {
detect();
return WinWindow != 0;
}
boolean doStateProtocol() {
boolean res = active() && checkProtocol(XA_WIN_PROTOCOLS, XA_WIN_STATE);
if (log.isLoggable(PlatformLogger.FINE)) log.fine("### " + this + " supports state: " + res);
return res;
}
boolean doLayerProtocol() {
boolean res = active() && checkProtocol(XA_WIN_PROTOCOLS, XA_WIN_LAYER);
if (log.isLoggable(PlatformLogger.FINE)) log.fine("### " + this + " supports layer: " + res);
return res;
}
}