Source Code Cross Referenced for XNETProtocol.java in  » 6.0-JDK-Platform » solaris » sun » awt » X11 » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Platform » solaris » sun.awt.X11 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright 2003-2007 Sun Microsystems, Inc.  All Rights Reserved.
003:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004:         *
005:         * This code is free software; you can redistribute it and/or modify it
006:         * under the terms of the GNU General Public License version 2 only, as
007:         * published by the Free Software Foundation.  Sun designates this
008:         * particular file as subject to the "Classpath" exception as provided
009:         * by Sun in the LICENSE file that accompanied this code.
010:         *
011:         * This code is distributed in the hope that it will be useful, but WITHOUT
012:         * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
013:         * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
014:         * version 2 for more details (a copy is included in the LICENSE file that
015:         * accompanied this code).
016:         *
017:         * You should have received a copy of the GNU General Public License version
018:         * 2 along with this work; if not, write to the Free Software Foundation,
019:         * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
020:         *
021:         * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
022:         * CA 95054 USA or visit www.sun.com if you need additional information or
023:         * have any questions.
024:         */
025:
026:        package sun.awt.X11;
027:
028:        import java.awt.*;
029:        import java.util.logging.Level;
030:        import java.util.logging.Logger;
031:        import java.util.logging.LogManager;
032:        import java.awt.*;
033:        import java.awt.image.*;
034:        import java.util.*;
035:
036:        class XNETProtocol extends XProtocol implements  XStateProtocol,
037:                XLayerProtocol {
038:            final static Logger log = Logger
039:                    .getLogger("sun.awt.X11.XNETProtocol");
040:            private final static Logger iconLog = Logger
041:                    .getLogger("sun.awt.X11.icon.XNETProtocol");
042:
043:            /**
044:             * XStateProtocol
045:             */
046:            public boolean supportsState(int state) {
047:                return doStateProtocol(); // TODO - check for Frame constants
048:            }
049:
050:            public void setState(XWindowPeer window, int state) {
051:                if (log.isLoggable(Level.FINE))
052:                    log.fine("Setting state of " + window + " to " + state);
053:                if (window.isShowing()) {
054:                    requestState(window, state);
055:                } else {
056:                    setInitialState(window, state);
057:                }
058:            }
059:
060:            private void setInitialState(XWindowPeer window, int state) {
061:                XAtomList old_state = window.getNETWMState();
062:                log.log(Level.FINE, "Current state of the window {0} is {1}",
063:                        new Object[] { window, old_state });
064:                if ((state & Frame.MAXIMIZED_VERT) != 0) {
065:                    old_state.add(XA_NET_WM_STATE_MAXIMIZED_VERT);
066:                } else {
067:                    old_state.remove(XA_NET_WM_STATE_MAXIMIZED_VERT);
068:                }
069:                if ((state & Frame.MAXIMIZED_HORIZ) != 0) {
070:                    old_state.add(XA_NET_WM_STATE_MAXIMIZED_HORZ);
071:                } else {
072:                    old_state.remove(XA_NET_WM_STATE_MAXIMIZED_HORZ);
073:                }
074:                log.log(Level.FINE,
075:                        "Setting initial state of the window {0} to {1}",
076:                        new Object[] { window, old_state });
077:                window.setNETWMState(old_state);
078:            }
079:
080:            private void requestState(XWindowPeer window, int state) {
081:                /*
082:                 * We have to use toggle for maximization because of transitions
083:                 * from maximization in one direction only to maximization in the
084:                 * other direction only.
085:                 */
086:                int old_net_state = getState(window);
087:                int max_changed = (state ^ old_net_state)
088:                        & (Frame.MAXIMIZED_BOTH);
089:
090:                XClientMessageEvent req = new XClientMessageEvent();
091:                try {
092:                    switch (max_changed) {
093:                    case 0:
094:                        return;
095:                    case Frame.MAXIMIZED_HORIZ:
096:                        req.set_data(1, XA_NET_WM_STATE_MAXIMIZED_HORZ
097:                                .getAtom());
098:                        req.set_data(2, 0);
099:                        break;
100:                    case Frame.MAXIMIZED_VERT:
101:                        req.set_data(1, XA_NET_WM_STATE_MAXIMIZED_VERT
102:                                .getAtom());
103:                        req.set_data(2, 0);
104:                        break;
105:                    case Frame.MAXIMIZED_BOTH:
106:                        req.set_data(1, XA_NET_WM_STATE_MAXIMIZED_HORZ
107:                                .getAtom());
108:                        req.set_data(2, XA_NET_WM_STATE_MAXIMIZED_VERT
109:                                .getAtom());
110:                        break;
111:                    default:
112:                        return;
113:                    }
114:                    if (log.isLoggable(Level.FINE))
115:                        log.fine("Requesting state on " + window + " for "
116:                                + state);
117:                    req.set_type((int) XlibWrapper.ClientMessage);
118:                    req.set_window(window.getWindow());
119:                    req.set_message_type(XA_NET_WM_STATE.getAtom());
120:                    req.set_format(32);
121:                    req.set_data(0, _NET_WM_STATE_TOGGLE);
122:                    XToolkit.awtLock();
123:                    try {
124:                        XlibWrapper.XSendEvent(XToolkit.getDisplay(),
125:                                XlibWrapper.RootWindow(XToolkit.getDisplay(),
126:                                        window.getScreenNumber()), false,
127:                                XlibWrapper.SubstructureRedirectMask
128:                                        | XlibWrapper.SubstructureNotifyMask,
129:                                req.pData);
130:                    } finally {
131:                        XToolkit.awtUnlock();
132:                    }
133:                } finally {
134:                    req.dispose();
135:                }
136:            }
137:
138:            public int getState(XWindowPeer window) {
139:                return getStateImpl(window);
140:            }
141:
142:            /*
143:             * New "NET" WM spec: _NET_WM_STATE/Atom[]
144:             */
145:            int getStateImpl(XWindowPeer window) {
146:                XAtomList net_wm_state = window.getNETWMState();
147:                if (net_wm_state.size() == 0) {
148:                    return Frame.NORMAL;
149:                }
150:                int java_state = Frame.NORMAL;
151:                if (net_wm_state.contains(XA_NET_WM_STATE_MAXIMIZED_VERT)) {
152:                    java_state |= Frame.MAXIMIZED_VERT;
153:                }
154:                if (net_wm_state.contains(XA_NET_WM_STATE_MAXIMIZED_HORZ)) {
155:                    java_state |= Frame.MAXIMIZED_HORIZ;
156:                }
157:                return java_state;
158:            }
159:
160:            public boolean isStateChange(XPropertyEvent e) {
161:                boolean res = doStateProtocol()
162:                        && (e.get_atom() == XA_NET_WM_STATE.getAtom());
163:
164:                if (res) {
165:                    // Since state change happened, reset our cached state.  It will be re-read by getState
166:                    XWindowPeer wpeer = (XWindowPeer) XToolkit
167:                            .windowToXWindow(e.get_window());
168:                    wpeer.setNETWMState(null);
169:                }
170:                return res;
171:            }
172:
173:            /*
174:             * Work around for 4775545.
175:             */
176:            public void unshadeKludge(XWindowPeer window) {
177:                XAtomList net_wm_state = window.getNETWMState();
178:                net_wm_state.remove(XA_NET_WM_STATE_SHADED);
179:                window.setNETWMState(net_wm_state);
180:            }
181:
182:            /**
183:             * XLayerProtocol
184:             */
185:            public boolean supportsLayer(int layer) {
186:                return ((layer == LAYER_ALWAYS_ON_TOP) || (layer == LAYER_NORMAL))
187:                        && doLayerProtocol();
188:            }
189:
190:            /**
191:             * Helper function to set/reset one state in NET_WM_STATE
192:             * If window is showing then it uses ClientMessage, otherwise adjusts NET_WM_STATE list
193:             * @param window Window which NET_WM_STATE property is being modified
194:             * @param state State atom to be set/reset
195:             * @param reset Indicates operation, 'set' if false, 'reset' if true
196:             */
197:            private void setStateHelper(XWindowPeer window, XAtom state,
198:                    boolean set) {
199:                log
200:                        .log(
201:                                Level.FINER,
202:                                "Window visibility is: withdrawn={0}, visible={1}, mapped={2} showing={3}",
203:                                new Object[] {
204:                                        Boolean.valueOf(window.isWithdrawn()),
205:                                        Boolean.valueOf(window.isVisible()),
206:                                        Boolean.valueOf(window.isMapped()),
207:                                        Boolean.valueOf(window.isShowing()) });
208:                if (window.isShowing()) {
209:                    XClientMessageEvent req = new XClientMessageEvent();
210:                    try {
211:                        req.set_type((int) XlibWrapper.ClientMessage);
212:                        req.set_window(window.getWindow());
213:                        req.set_message_type(XA_NET_WM_STATE.getAtom());
214:                        req.set_format(32);
215:                        req.set_data(0, (!set) ? _NET_WM_STATE_REMOVE
216:                                : _NET_WM_STATE_ADD);
217:                        req.set_data(1, state.getAtom());
218:                        log.log(Level.FINE,
219:                                "Setting _NET_STATE atom {0} on {1} for {2}",
220:                                new Object[] { state, window,
221:                                        Boolean.valueOf(set) });
222:                        XToolkit.awtLock();
223:                        try {
224:                            XlibWrapper
225:                                    .XSendEvent(
226:                                            XToolkit.getDisplay(),
227:                                            XlibWrapper.RootWindow(XToolkit
228:                                                    .getDisplay(), window
229:                                                    .getScreenNumber()),
230:                                            false,
231:                                            XlibWrapper.SubstructureRedirectMask
232:                                                    | XlibWrapper.SubstructureNotifyMask,
233:                                            req.pData);
234:                        } finally {
235:                            XToolkit.awtUnlock();
236:                        }
237:                    } finally {
238:                        req.dispose();
239:                    }
240:                } else {
241:                    XAtomList net_wm_state = window.getNETWMState();
242:                    log.log(Level.FINE, "Current state on {0} is {1}",
243:                            new Object[] { window, net_wm_state });
244:                    if (!set) {
245:                        net_wm_state.remove(state);
246:                    } else {
247:                        net_wm_state.add(state);
248:                    }
249:                    log.log(Level.FINE, "Setting states on {0} to {1}",
250:                            new Object[] { window, net_wm_state });
251:                    window.setNETWMState(net_wm_state);
252:                }
253:                XToolkit.XSync();
254:            }
255:
256:            public void setLayer(XWindowPeer window, int layer) {
257:                setStateHelper(window, XA_NET_WM_STATE_ABOVE,
258:                        layer == LAYER_ALWAYS_ON_TOP);
259:            }
260:
261:            /* New "netwm" spec from www.freedesktop.org */
262:            XAtom XA_UTF8_STRING = XAtom.get("UTF8_STRING"); /* like STRING but encoding is UTF-8 */
263:            XAtom XA_NET_SUPPORTING_WM_CHECK = XAtom
264:                    .get("_NET_SUPPORTING_WM_CHECK");
265:            XAtom XA_NET_SUPPORTED = XAtom.get("_NET_SUPPORTED"); /* list of protocols (property of root) */
266:            XAtom XA_NET_WM_NAME = XAtom.get("_NET_WM_NAME"); /* window property */
267:            XAtom XA_NET_WM_STATE = XAtom.get("_NET_WM_STATE");/* both window property and request */
268:
269:            /*
270:             * _NET_WM_STATE is a list of atoms.
271:             * NB: Standard spelling is "HORZ" (yes, without an 'I'), but KDE2
272:             * uses misspelled "HORIZ" (see KDE bug #20229).  This was fixed in
273:             * KDE 2.2.  Under earlier versions of KDE2 horizontal and full
274:             * maximization doesn't work .
275:             */
276:            XAtom XA_NET_WM_STATE_MAXIMIZED_HORZ = XAtom
277:                    .get("_NET_WM_STATE_MAXIMIZED_HORZ");
278:            XAtom XA_NET_WM_STATE_MAXIMIZED_VERT = XAtom
279:                    .get("_NET_WM_STATE_MAXIMIZED_VERT");
280:            XAtom XA_NET_WM_STATE_SHADED = XAtom.get("_NET_WM_STATE_SHADED");
281:            XAtom XA_NET_WM_STATE_ABOVE = XAtom.get("_NET_WM_STATE_ABOVE");
282:            XAtom XA_NET_WM_STATE_MODAL = XAtom.get("_NET_WM_STATE_MODAL");
283:            XAtom XA_NET_WM_STATE_FULLSCREEN = XAtom
284:                    .get("_NET_WM_STATE_FULLSCREEN");
285:            XAtom XA_NET_WM_STATE_BELOW = XAtom.get("_NET_WM_STATE_BELOW");
286:            XAtom XA_NET_WM_STATE_HIDDEN = XAtom.get("_NET_WM_STATE_HIDDEN");
287:            XAtom XA_NET_WM_STATE_SKIP_TASKBAR = XAtom
288:                    .get("_NET_WM_STATE_SKIP_TASKBAR");
289:            XAtom XA_NET_WM_STATE_SKIP_PAGER = XAtom
290:                    .get("_NET_WM_STATE_SKIP_PAGER");
291:
292:            XAtom XA_NET_WM_WINDOW_TYPE = XAtom.get("_NET_WM_WINDOW_TYPE");
293:            XAtom XA_NET_WM_WINDOW_TYPE_DIALOG = XAtom
294:                    .get("_NET_WM_WINDOW_TYPE_DIALOG");
295:
296:            /* For _NET_WM_STATE ClientMessage requests */
297:            final static int _NET_WM_STATE_REMOVE = 0; /* remove/unset property */
298:            final static int _NET_WM_STATE_ADD = 1; /* add/set property      */
299:            final static int _NET_WM_STATE_TOGGLE = 2; /* toggle property       */
300:
301:            boolean supportChecked = false;
302:            long NetWindow = 0;
303:
304:            void detect() {
305:                if (supportChecked) {
306:                    // TODO: How about detecting WM-restart or exit?
307:                    return;
308:                }
309:                NetWindow = checkAnchor(XA_NET_SUPPORTING_WM_CHECK,
310:                        XAtom.XA_WINDOW);
311:                supportChecked = true;
312:                if (log.isLoggable(Level.FINE))
313:                    log.fine("### " + this  + " is active: " + (NetWindow != 0));
314:            }
315:
316:            boolean active() {
317:                detect();
318:                return NetWindow != 0;
319:            }
320:
321:            boolean doStateProtocol() {
322:                boolean res = active()
323:                        && checkProtocol(XA_NET_SUPPORTED, XA_NET_WM_STATE);
324:                return res;
325:            }
326:
327:            boolean doLayerProtocol() {
328:                boolean res = active()
329:                        && checkProtocol(XA_NET_SUPPORTED,
330:                                XA_NET_WM_STATE_ABOVE);
331:                return res;
332:            }
333:
334:            boolean doModalityProtocol() {
335:                boolean res = active()
336:                        && checkProtocol(XA_NET_SUPPORTED,
337:                                XA_NET_WM_STATE_MODAL);
338:                return res;
339:            }
340:
341:            boolean isWMName(String name) {
342:                if (!active()) {
343:                    return false;
344:                }
345:                String net_wm_name_string = getWMName();
346:                if (net_wm_name_string == null) {
347:                    return false;
348:                }
349:                if (log.isLoggable(Level.FINE))
350:                    log.fine("### WM_NAME = " + net_wm_name_string);
351:                return net_wm_name_string.startsWith(name);
352:            }
353:
354:            String net_wm_name_cache;
355:
356:            public String getWMName() {
357:                if (!active()) {
358:                    return null;
359:                }
360:
361:                if (net_wm_name_cache != null) {
362:                    return net_wm_name_cache;
363:                }
364:
365:                /*
366:                 * Check both UTF8_STRING and STRING.  We only call this function
367:                 * with ASCII names and UTF8 preserves ASCII bit-wise.  wm-spec
368:                 * mandates UTF8_STRING for _NET_WM_NAME but at least sawfish-1.0
369:                 * still uses STRING.  (mmm, moving targets...).
370:                 */
371:                String charSet = "UTF8";
372:                byte[] net_wm_name = XA_NET_WM_NAME.getByteArrayProperty(
373:                        NetWindow, XA_UTF8_STRING.getAtom());
374:                if (net_wm_name == null) {
375:                    net_wm_name = XA_NET_WM_NAME.getByteArrayProperty(
376:                            NetWindow, XAtom.XA_STRING);
377:                    charSet = "ASCII";
378:                }
379:
380:                if (net_wm_name == null) {
381:                    return null;
382:                }
383:                try {
384:                    net_wm_name_cache = new String(net_wm_name, charSet);
385:                    return net_wm_name_cache;
386:                } catch (java.io.UnsupportedEncodingException uex) {
387:                    return null;
388:                }
389:            }
390:
391:            /**
392:             * Sets _NET_WM_ICON property on the window using the List of XIconInfo
393:             * If icons is null or empty list, removes _NET_WM_ICON property
394:             */
395:            public void setWMIcons(XWindowPeer window,
396:                    java.util.List<XIconInfo> icons) {
397:                if (window == null)
398:                    return;
399:
400:                XAtom iconsAtom = XAtom.get("_NET_WM_ICON");
401:                if (icons == null) {
402:                    iconsAtom.DeleteProperty(window);
403:                    return;
404:                }
405:
406:                int length = 0;
407:                for (XIconInfo ii : icons) {
408:                    length += ii.getRawLength();
409:                }
410:                int cardinalSize = (XlibWrapper.dataModel == 32) ? 4 : 8;
411:                int bufferSize = length * cardinalSize;
412:
413:                if (bufferSize != 0) {
414:                    long buffer = XlibWrapper.unsafe.allocateMemory(bufferSize);
415:                    try {
416:                        long ptr = buffer;
417:                        for (XIconInfo ii : icons) {
418:                            int size = ii.getRawLength() * cardinalSize;
419:                            if (XlibWrapper.dataModel == 32) {
420:                                XlibWrapper.copyIntArray(ptr, ii.getIntData(),
421:                                        size);
422:                            } else {
423:                                XlibWrapper.copyLongArray(ptr,
424:                                        ii.getLongData(), size);
425:                            }
426:                            ptr += size;
427:                        }
428:                        iconsAtom.setAtomData(window.getWindow(),
429:                                XAtom.XA_CARDINAL, buffer, bufferSize
430:                                        / Native.getCard32Size());
431:                    } finally {
432:                        XlibWrapper.unsafe.freeMemory(buffer);
433:                    }
434:                } else {
435:                    iconsAtom.DeleteProperty(window);
436:                }
437:            }
438:
439:            public boolean isWMStateNetHidden(XWindowPeer window) {
440:                if (!doStateProtocol()) {
441:                    return false;
442:                }
443:                XAtomList state = window.getNETWMState();
444:                return (state != null && state.size() != 0 && state
445:                        .contains(XA_NET_WM_STATE_HIDDEN));
446:            }
447:        }
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