J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003-2007 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | |
| 27 | package sun.awt.X11; |
| 28 | |
| 29 | import java.awt.*; |
| 30 | import java.util.logging.Level; |
| 31 | import java.util.logging.Logger; |
| 32 | |
| 33 | class XWINProtocol extends XProtocol implements XStateProtocol, XLayerProtocol { |
| 34 | final static Logger log = Logger.getLogger("sun.awt.X11.XWINProtocol"); |
| 35 | |
| 36 | /* Gnome WM spec */ |
| 37 | XAtom XA_WIN_SUPPORTING_WM_CHECK = XAtom.get("_WIN_SUPPORTING_WM_CHECK"); |
| 38 | XAtom XA_WIN_PROTOCOLS = XAtom.get("_WIN_PROTOCOLS"); |
| 39 | XAtom XA_WIN_STATE = XAtom.get("_WIN_STATE"); |
| 40 | |
| 41 | public boolean supportsState(int state) { |
| 42 | return doStateProtocol(); // TODO - check for Frame constants |
| 43 | } |
| 44 | |
| 45 | public void setState(XWindowPeer window, int state) { |
| 46 | if (window.isShowing()) { |
| 47 | /* |
| 48 | * Request state transition from a Gnome WM (_WIN protocol) by sending |
| 49 | * _WIN_STATE ClientMessage to root window. |
| 50 | */ |
| 51 | long win_state = 0; |
| 52 | |
| 53 | if ( (state & Frame.MAXIMIZED_VERT) != 0) { |
| 54 | win_state |= WIN_STATE_MAXIMIZED_VERT; |
| 55 | } |
| 56 | if ( (state & Frame.MAXIMIZED_HORIZ) != 0) { |
| 57 | win_state |= WIN_STATE_MAXIMIZED_HORIZ; |
| 58 | } |
| 59 | |
| 60 | XClientMessageEvent req = new XClientMessageEvent(); |
| 61 | req.set_type(XlibWrapper.ClientMessage); |
| 62 | req.set_window(window.getWindow()); |
| 63 | req.set_message_type(XA_WIN_STATE.getAtom()); |
| 64 | req.set_format(32); |
| 65 | req.set_data(0, (WIN_STATE_MAXIMIZED_HORIZ | WIN_STATE_MAXIMIZED_VERT)); |
| 66 | req.set_data(1, win_state); |
| 67 | if (log.isLoggable(Level.FINE)) log.fine("Sending WIN_STATE to root to change the state to " + win_state); |
| 68 | try { |
| 69 | XToolkit.awtLock(); |
| 70 | XlibWrapper.XSendEvent(XToolkit.getDisplay(), |
| 71 | XlibWrapper.RootWindow(XToolkit.getDisplay(), |
| 72 | window.getScreenNumber()), |
| 73 | false, |
| 74 | XlibWrapper.SubstructureRedirectMask | XlibWrapper.SubstructureNotifyMask, |
| 75 | req.pData); |
| 76 | } |
| 77 | finally { |
| 78 | XToolkit.awtUnlock(); |
| 79 | } |
| 80 | req.dispose(); |
| 81 | } else { |
| 82 | /* |
| 83 | * Specify initial state for a Gnome WM (_WIN protocol) by setting |
| 84 | * WIN_STATE property on the window to the desired state before |
| 85 | * mapping it. |
| 86 | */ |
| 87 | /* Be careful to not wipe out state bits we don't understand */ |
| 88 | long win_state = XA_WIN_STATE.getCard32Property(window); |
| 89 | long old_win_state = win_state; |
| 90 | |
| 91 | /* |
| 92 | * In their stupid quest of reinventing every wheel, Gnome WM spec |
| 93 | * have its own "minimized" hint (instead of using initial state |
| 94 | * and WM_STATE hints). This is bogus, but, apparently, some WMs |
| 95 | * pay attention. |
| 96 | */ |
| 97 | if ((state & Frame.ICONIFIED) != 0) { |
| 98 | win_state |= WIN_STATE_MINIMIZED; |
| 99 | } else { |
| 100 | win_state &= ~WIN_STATE_MINIMIZED; |
| 101 | } |
| 102 | |
| 103 | if ((state & Frame.MAXIMIZED_VERT) != 0) { |
| 104 | win_state |= WIN_STATE_MAXIMIZED_VERT; |
| 105 | } else { |
| 106 | win_state &= ~WIN_STATE_MAXIMIZED_VERT; |
| 107 | } |
| 108 | |
| 109 | if ((state & Frame.MAXIMIZED_HORIZ) != 0) { |
| 110 | win_state |= WIN_STATE_MAXIMIZED_HORIZ; |
| 111 | } else { |
| 112 | win_state &= ~WIN_STATE_MAXIMIZED_HORIZ; |
| 113 | } |
| 114 | if ((old_win_state ^ win_state) != 0) { |
| 115 | if (log.isLoggable(Level.FINE)) log.fine("Setting WIN_STATE on " + window + " to change the state to " + win_state); |
| 116 | XA_WIN_STATE.setCard32Property(window, win_state); |
| 117 | } |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | public int getState(XWindowPeer window) { |
| 122 | long win_state = XA_WIN_STATE.getCard32Property(window); |
| 123 | int java_state = Frame.NORMAL; |
| 124 | if ((win_state & WIN_STATE_MAXIMIZED_VERT) != 0) { |
| 125 | java_state |= Frame.MAXIMIZED_VERT; |
| 126 | } |
| 127 | if ((win_state & WIN_STATE_MAXIMIZED_HORIZ) != 0) { |
| 128 | java_state |= Frame.MAXIMIZED_HORIZ; |
| 129 | } |
| 130 | return java_state; |
| 131 | } |
| 132 | |
| 133 | public boolean isStateChange(XPropertyEvent e) { |
| 134 | return doStateProtocol() && e.get_atom() == XA_WIN_STATE.getAtom(); |
| 135 | } |
| 136 | |
| 137 | public void unshadeKludge(XWindowPeer window) { |
| 138 | long win_state = XA_WIN_STATE.getCard32Property(window); |
| 139 | if ((win_state & WIN_STATE_SHADED) == 0) { |
| 140 | return; |
| 141 | } |
| 142 | win_state &= ~WIN_STATE_SHADED; |
| 143 | XA_WIN_STATE.setCard32Property(window, win_state); |
| 144 | } |
| 145 | |
| 146 | public boolean supportsLayer(int layer) { |
| 147 | return ((layer == LAYER_ALWAYS_ON_TOP) || (layer == LAYER_NORMAL)) && doLayerProtocol(); |
| 148 | } |
| 149 | |
| 150 | public void setLayer(XWindowPeer window, int layer) { |
| 151 | if (window.isShowing()) { |
| 152 | XClientMessageEvent req = new XClientMessageEvent(); |
| 153 | req.set_type(XlibWrapper.ClientMessage); |
| 154 | req.set_window(window.getWindow()); |
| 155 | req.set_message_type(XA_WIN_LAYER.getAtom()); |
| 156 | req.set_format(32); |
| 157 | req.set_data(0, layer == LAYER_NORMAL ? WIN_LAYER_NORMAL : WIN_LAYER_ONTOP); |
| 158 | req.set_data(1, 0); |
| 159 | req.set_data(2, 0); |
| 160 | if (log.isLoggable(Level.FINE)) log.fine("Setting layer " + layer + " by root message : " + req); |
| 161 | XToolkit.awtLock(); |
| 162 | try { |
| 163 | XlibWrapper.XSendEvent(XToolkit.getDisplay(), |
| 164 | XlibWrapper.RootWindow(XToolkit.getDisplay(), |
| 165 | window.getScreenNumber()), |
| 166 | false, |
| 167 | /*XlibWrapper.SubstructureRedirectMask | */XlibWrapper.SubstructureNotifyMask, |
| 168 | req.pData); |
| 169 | } |
| 170 | finally { |
| 171 | XToolkit.awtUnlock(); |
| 172 | } |
| 173 | req.dispose(); |
| 174 | } else { |
| 175 | if (log.isLoggable(Level.FINE)) log.fine("Setting layer property to " + layer); |
| 176 | XA_WIN_LAYER.setCard32Property(window, layer == LAYER_NORMAL ? WIN_LAYER_NORMAL : WIN_LAYER_ONTOP); |
| 177 | } |
| 178 | } |
| 179 | |
| 180 | XAtom XA_WIN_LAYER = XAtom.get("_WIN_LAYER"); |
| 181 | |
| 182 | /* _WIN_STATE bits */ |
| 183 | final static int WIN_STATE_STICKY =(1<<0); /* everyone knows sticky */ |
| 184 | final static int WIN_STATE_MINIMIZED =(1<<1); /* Reserved - definition is unclear */ |
| 185 | final static int WIN_STATE_MAXIMIZED_VERT =(1<<2); /* window in maximized V state */ |
| 186 | final static int WIN_STATE_MAXIMIZED_HORIZ =(1<<3); /* window in maximized H state */ |
| 187 | final static int WIN_STATE_HIDDEN =(1<<4); /* not on taskbar but window visible*/ |
| 188 | final static int WIN_STATE_SHADED =(1<<5); /* shaded (MacOS / Afterstep style) */ |
| 189 | /* _WIN_LAYER values */ |
| 190 | final static int WIN_LAYER_ONTOP = 6; |
| 191 | final static int WIN_LAYER_NORMAL = 4; |
| 192 | |
| 193 | long WinWindow = 0; |
| 194 | boolean supportChecked = false; |
| 195 | void detect() { |
| 196 | if (supportChecked) { |
| 197 | return; |
| 198 | } |
| 199 | WinWindow = checkAnchor(XA_WIN_SUPPORTING_WM_CHECK, XAtom.XA_CARDINAL); |
| 200 | supportChecked = true; |
| 201 | if (log.isLoggable(Level.FINE)) log.fine("### " + this + " is active: " + (WinWindow != 0)); |
| 202 | } |
| 203 | |
| 204 | boolean active() { |
| 205 | detect(); |
| 206 | return WinWindow != 0; |
| 207 | } |
| 208 | boolean doStateProtocol() { |
| 209 | boolean res = active() && checkProtocol(XA_WIN_PROTOCOLS, XA_WIN_STATE); |
| 210 | if (log.isLoggable(Level.FINE)) log.fine("### " + this + " supports state: " + res); |
| 211 | return res; |
| 212 | } |
| 213 | |
| 214 | boolean doLayerProtocol() { |
| 215 | boolean res = active() && checkProtocol(XA_WIN_PROTOCOLS, XA_WIN_LAYER); |
| 216 | if (log.isLoggable(Level.FINE)) log.fine("### " + this + " supports layer: " + res); |
| 217 | return res; |
| 218 | } |
| 219 | } |