/* * 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 * questions. */ 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.Level.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.Level.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.Level.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.Level.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.Level.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.Level.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.Level.FINE)) { log.fine("### " + this + " supports layer: " + res); } return res; } }