1 /*
2 * Copyright (c) 2002, 2008, Oracle and/or its affiliates. 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 package sun.awt.X11;
26
27 import java.awt.*;
28 import java.awt.peer.*;
29 import java.awt.event.*;
30
31 import java.util.Vector;
32 import sun.awt.AWTAccessor;
33 import sun.util.logging.PlatformLogger;
34
35 public class XPopupMenuPeer extends XMenuWindow implements PopupMenuPeer {
36
37 /************************************************
38 *
39 * Data members
40 *
41 ************************************************/
42 private static PlatformLogger log = PlatformLogger.getLogger("sun.awt.X11.XBaseMenuWindow");
43
44 /*
45 * Primary members
46 */
47 private XComponentPeer componentPeer;
48 private PopupMenu popupMenuTarget;
49
50 /*
51 * If mouse button is clicked on item showing submenu
52 * we have to hide its submenu.
53 * This member saves the submenu under cursor
54 * Only if it's showing
55 */
56 private XMenuPeer showingMousePressedSubmenu = null;
57
58 /*
59 * Painting constants
60 */
61 private final static int CAPTION_MARGIN_TOP = 4;
62 private final static int CAPTION_SEPARATOR_HEIGHT = 6;
63
64 /************************************************
65 *
66 * Construction
67 *
68 ************************************************/
69 XPopupMenuPeer(PopupMenu target) {
70 super(null);
71 this.popupMenuTarget = target;
72 }
73
74 /************************************************
75 *
76 * Implementation of interface methods
77 *
78 ************************************************/
79 /*
80 * From MenuComponentPeer
81 */
82 public void setFont(Font f) {
83 resetMapping();
84 setItemsFont(f);
85 postPaintEvent();
86 }
87
88 /*
89 * From MenuItemPeer
90 */
91 public void setLabel(String label) {
92 resetMapping();
93 postPaintEvent();
94 }
95
96
97 public void setEnabled(boolean enabled) {
98 postPaintEvent();
99 }
100
101 /**
102 * DEPRECATED: Replaced by setEnabled(boolean).
103 * @see java.awt.peer.MenuItemPeer
104 */
105 public void enable() {
106 setEnabled( true );
107 }
108
109 /**
110 * DEPRECATED: Replaced by setEnabled(boolean).
111 * @see java.awt.peer.MenuItemPeer
112 */
113 public void disable() {
114 setEnabled( false );
115 }
116
117 /*
118 * From MenuPeer
119 */
120 /**
121 * addSeparator routines are not used
122 * in peers. Shared code invokes addItem("-")
123 * for adding separators
124 */
125 public void addSeparator() {
126 if (log.isLoggable(PlatformLogger.FINER)) log.finer("addSeparator is not implemented");
127 }
128
129 /*
130 * From PopupMenuPeer
131 */
132 public void show(Event e) {
133 target = (Component)e.target;
134 // Get menus from the target.
135 Vector targetItemVector = getMenuTargetItems();
136 if (targetItemVector != null) {
137 reloadItems(targetItemVector);
138 //Fix for 6287092: JCK15a: api/java_awt/interactive/event/EventTests.html#EventTest0015 fails, mustang
139 Point tl = target.getLocationOnScreen();
140 Point pt = new Point(tl.x + e.x, tl.y + e.y);
141 //Fixed 6266513: Incorrect key handling in XAWT popup menu
142 //No item should be selected when showing popup menu
143 if (!ensureCreated()) {
144 return;
145 }
146 Dimension dim = getDesiredSize();
147 //Fix for 6267162: PIT: Popup Menu gets hidden below the screen when opened
148 //near the periphery of the screen, XToolkit
149 Rectangle bounds = getWindowBounds(pt, dim);
150 reshape(bounds);
151 xSetVisible(true);
152 toFront();
153 selectItem(null, false);
154 grabInput();
155 }
156 }
157
158 /************************************************
159 *
160 * Access to target's fields
161 *
162 ************************************************/
163
164 //Fix for 6267144: PIT: Popup menu label is not shown, XToolkit
165 Font getTargetFont() {
166 if (popupMenuTarget == null) {
167 return XWindow.getDefaultFont();
168 }
169 return AWTAccessor.getMenuComponentAccessor()
170 .getFont_NoClientCode(popupMenuTarget);
171 }
172
173 //Fix for 6267144: PIT: Popup menu label is not shown, XToolkit
174 String getTargetLabel() {
175 if (target == null) {
176 return "";
177 }
178 return AWTAccessor.getMenuItemAccessor().getLabel(popupMenuTarget);
179 }
180
181 //Fix for 6184485: Popup menu is not disabled on XToolkit even when calling setEnabled (false)
182 boolean isTargetEnabled() {
183 if (popupMenuTarget == null) {
184 return false;
185 }
186 return AWTAccessor.getMenuItemAccessor().isEnabled(popupMenuTarget);
187 }
188
189 Vector getMenuTargetItems() {
190 if (popupMenuTarget == null) {
191 return null;
192 }
193 return AWTAccessor.getMenuAccessor().getItems(popupMenuTarget);
194 }
195
196 /************************************************
197 *
198 * Utility functions
199 *
200 ************************************************/
201
202 //Fix for 6267162: PIT: Popup Menu gets hidden below the screen when opened
203 //near the periphery of the screen, XToolkit
204
205 /**
206 * Calculates placement of popup menu window
207 * given origin in global coordinates and
208 * size of menu window. Returns suggested
209 * rectangle for menu window in global coordinates
210 * @param origin the origin point specified in show()
211 * function converted to global coordinates
212 * @param windowSize the desired size of menu's window
213 */
214 protected Rectangle getWindowBounds(Point origin, Dimension windowSize) {
215 Rectangle globalBounds = new Rectangle(origin.x, origin.y, 0, 0);
216 Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
217 Rectangle res;
218 res = fitWindowRight(globalBounds, windowSize, screenSize);
219 if (res != null) {
220 return res;
221 }
222 res = fitWindowLeft(globalBounds, windowSize, screenSize);
223 if (res != null) {
224 return res;
225 }
226 res = fitWindowBelow(globalBounds, windowSize, screenSize);
227 if (res != null) {
228 return res;
229 }
230 res = fitWindowAbove(globalBounds, windowSize, screenSize);
231 if (res != null) {
232 return res;
233 }
234 return fitWindowToScreen(windowSize, screenSize);
235 }
236
237 /************************************************
238 *
239 * Overriden XMenuWindow caption-painting functions
240 * Necessary to fix 6267144: PIT: Popup menu label is not shown, XToolkit
241 *
242 ************************************************/
243 /**
244 * Returns height of menu window's caption.
245 * Can be overriden for popup menus and tear-off menus
246 */
247 protected Dimension getCaptionSize() {
248 String s = getTargetLabel();
249 if (s.equals("")) {
250 return null;
251 }
252 Graphics g = getGraphics();
253 if (g == null) {
254 return null;
255 }
256 try {
257 g.setFont(getTargetFont());
258 FontMetrics fm = g.getFontMetrics();
259 String str = getTargetLabel();
260 int width = fm.stringWidth(str);
261 int height = CAPTION_MARGIN_TOP + fm.getHeight() + CAPTION_SEPARATOR_HEIGHT;
262 Dimension textDimension = new Dimension(width, height);
263 return textDimension;
264 } finally {
265 g.dispose();
266 }
267 }
268
269 /**
270 * Paints menu window's caption.
271 * Can be overriden for popup menus and tear-off menus.
272 * Default implementation does nothing
273 */
274 protected void paintCaption(Graphics g, Rectangle rect) {
275 String s = getTargetLabel();
276 if (s.equals("")) {
277 return;
278 }
279 g.setFont(getTargetFont());
280 FontMetrics fm = g.getFontMetrics();
281 String str = getTargetLabel();
282 int width = fm.stringWidth(str);
283 int textx = rect.x + (rect.width - width) / 2;
284 int texty = rect.y + CAPTION_MARGIN_TOP + fm.getAscent();
285 int sepy = rect.y + rect.height - CAPTION_SEPARATOR_HEIGHT / 2;
286 g.setColor(isTargetEnabled() ? getForegroundColor() : getDisabledColor());
287 g.drawString(s, textx, texty);
288 draw3DRect(g, rect.x, sepy, rect.width, 2, false);
289 }
290
291 /************************************************
292 *
293 * Overriden XBaseMenuWindow functions
294 *
295 ************************************************/
296 protected void doDispose() {
297 super.doDispose();
298 XToolkit.targetDisposedPeer(popupMenuTarget, this);
299 }
300
301 protected void handleEvent(AWTEvent event) {
302 switch(event.getID()) {
303 case MouseEvent.MOUSE_PRESSED:
304 case MouseEvent.MOUSE_RELEASED:
305 case MouseEvent.MOUSE_CLICKED:
306 case MouseEvent.MOUSE_MOVED:
307 case MouseEvent.MOUSE_ENTERED:
308 case MouseEvent.MOUSE_EXITED:
309 case MouseEvent.MOUSE_DRAGGED:
310 doHandleJavaMouseEvent((MouseEvent)event);
311 break;
312 case KeyEvent.KEY_PRESSED:
313 case KeyEvent.KEY_RELEASED:
314 doHandleJavaKeyEvent((KeyEvent)event);
315 break;
316 default:
317 super.handleEvent(event);
318 break;
319 }
320 }
321
322 /************************************************
323 *
324 * Overriden XWindow general-purpose functions
325 *
326 ************************************************/
327 void ungrabInputImpl() {
328 hide();
329 }
330
331 /************************************************
332 *
333 * Overriden XWindow keyboard processing
334 *
335 ************************************************/
336
337 /*
338 * In previous version keys were handled in handleKeyPress.
339 * Now we override this function do disable F10 explicit
340 * processing. All processing is done using KeyEvent.
341 */
342 public void handleKeyPress(XEvent xev) {
343 XKeyEvent xkey = xev.get_xkey();
344 if (log.isLoggable(PlatformLogger.FINE)) {
345 log.fine(xkey.toString());
346 }
347 if (isEventDisabled(xev)) {
348 return;
349 }
350 final Component currentSource = (Component)getEventSource();
351 handleKeyPress(xkey);
352 }
353
354 }