99
100 /**
101 * If mouse button is clicked on item showing submenu
102 * we have to hide its submenu.
103 * And if mouse button is pressed on such item and
104 * dragged to another, getShowingSubmenu() is changed.
105 * So this member saves the item that the user
106 * presses mouse button on _only_ if it's showing submenu.
107 */
108 private XMenuPeer showingMousePressedSubmenu = null;
109
110 /**
111 * If the PopupMenu is invoked as a result of right button click
112 * first mouse event after grabInput would be MouseReleased.
113 * We need to check if the user has moved mouse after input grab.
114 * If yes - hide the PopupMenu. If no - do nothing
115 */
116 protected Point grabInputPoint = null;
117 protected boolean hasPointerMoved = false;
118
119 /************************************************
120 *
121 * Mapping data
122 *
123 ************************************************/
124
125 /**
126 * Mapping data that is filled in getMappedItems function
127 * and reset in resetSize function. It contains array of
128 * items in order that they appear on screen and may contain
129 * additional data defined by descendants.
130 */
131 private MappingData mappingData;
132
133 static class MappingData implements Cloneable {
134
135 /**
136 * Array of item in order that they appear on screen
137 */
138 private XMenuItemPeer[] items;
157 try {
158 return super.clone();
159 } catch (CloneNotSupportedException ex) {
160 throw new InternalError(ex);
161 }
162 }
163
164 public XMenuItemPeer[] getItems() {
165 return this.items;
166 }
167 }
168
169 /************************************************
170 *
171 * Construction
172 *
173 ************************************************/
174 XBaseMenuWindow() {
175 super(new XCreateWindowParams(new Object[] {
176 DELAYED, Boolean.TRUE}));
177 }
178
179 /************************************************
180 *
181 * Abstract methods
182 *
183 ************************************************/
184
185 /**
186 * Returns parent menu window (not the X-heirarchy parent window)
187 */
188 protected abstract XBaseMenuWindow getParentMenuWindow();
189
190 /**
191 * Performs mapping of items in window.
192 * This function creates and fills specific
193 * descendant of MappingData
194 * and sets mapping coordinates of items
195 * This function should return default menu data
196 * if errors occur
887 switch (e.get_type()) {
888 case XConstants.Expose :
889 case XConstants.GraphicsExpose :
890 case XConstants.ButtonPress:
891 case XConstants.ButtonRelease:
892 case XConstants.MotionNotify:
893 case XConstants.KeyPress:
894 case XConstants.KeyRelease:
895 case XConstants.DestroyNotify:
896 return super.isEventDisabled(e);
897 default:
898 return true;
899 }
900 }
901
902 /**
903 * Invokes disposal procedure on eventHandlerThread
904 */
905 public void dispose() {
906 setDisposed(true);
907 InvocationEvent ev = new InvocationEvent(target, new Runnable() {
908 public void run() {
909 doDispose();
910 }
911 });
912 super.postEvent(ev);
913 }
914
915 /**
916 * Performs disposal of menu window.
917 * Should be called only on eventHandlerThread
918 */
919 protected void doDispose() {
920 xSetVisible(false);
921 SurfaceData oldData = surfaceData;
922 surfaceData = null;
923 if (oldData != null) {
924 oldData.invalidate();
925 }
926 XToolkit.targetDisposedPeer(target, this);
927 destroy();
928 }
929
930 /**
931 * Invokes event processing on eventHandlerThread
932 * This function needs to be overriden since
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99
100 /**
101 * If mouse button is clicked on item showing submenu
102 * we have to hide its submenu.
103 * And if mouse button is pressed on such item and
104 * dragged to another, getShowingSubmenu() is changed.
105 * So this member saves the item that the user
106 * presses mouse button on _only_ if it's showing submenu.
107 */
108 private XMenuPeer showingMousePressedSubmenu = null;
109
110 /**
111 * If the PopupMenu is invoked as a result of right button click
112 * first mouse event after grabInput would be MouseReleased.
113 * We need to check if the user has moved mouse after input grab.
114 * If yes - hide the PopupMenu. If no - do nothing
115 */
116 protected Point grabInputPoint = null;
117 protected boolean hasPointerMoved = false;
118
119 private AppContext disposeAppContext;
120
121 /************************************************
122 *
123 * Mapping data
124 *
125 ************************************************/
126
127 /**
128 * Mapping data that is filled in getMappedItems function
129 * and reset in resetSize function. It contains array of
130 * items in order that they appear on screen and may contain
131 * additional data defined by descendants.
132 */
133 private MappingData mappingData;
134
135 static class MappingData implements Cloneable {
136
137 /**
138 * Array of item in order that they appear on screen
139 */
140 private XMenuItemPeer[] items;
159 try {
160 return super.clone();
161 } catch (CloneNotSupportedException ex) {
162 throw new InternalError(ex);
163 }
164 }
165
166 public XMenuItemPeer[] getItems() {
167 return this.items;
168 }
169 }
170
171 /************************************************
172 *
173 * Construction
174 *
175 ************************************************/
176 XBaseMenuWindow() {
177 super(new XCreateWindowParams(new Object[] {
178 DELAYED, Boolean.TRUE}));
179
180 disposeAppContext = AppContext.getAppContext();
181 }
182
183 /************************************************
184 *
185 * Abstract methods
186 *
187 ************************************************/
188
189 /**
190 * Returns parent menu window (not the X-heirarchy parent window)
191 */
192 protected abstract XBaseMenuWindow getParentMenuWindow();
193
194 /**
195 * Performs mapping of items in window.
196 * This function creates and fills specific
197 * descendant of MappingData
198 * and sets mapping coordinates of items
199 * This function should return default menu data
200 * if errors occur
891 switch (e.get_type()) {
892 case XConstants.Expose :
893 case XConstants.GraphicsExpose :
894 case XConstants.ButtonPress:
895 case XConstants.ButtonRelease:
896 case XConstants.MotionNotify:
897 case XConstants.KeyPress:
898 case XConstants.KeyRelease:
899 case XConstants.DestroyNotify:
900 return super.isEventDisabled(e);
901 default:
902 return true;
903 }
904 }
905
906 /**
907 * Invokes disposal procedure on eventHandlerThread
908 */
909 public void dispose() {
910 setDisposed(true);
911
912 SunToolkit.invokeLaterOnAppContext(disposeAppContext, new Runnable() {
913 public void run() {
914 doDispose();
915 }
916 });
917 }
918
919 /**
920 * Performs disposal of menu window.
921 * Should be called only on eventHandlerThread
922 */
923 protected void doDispose() {
924 xSetVisible(false);
925 SurfaceData oldData = surfaceData;
926 surfaceData = null;
927 if (oldData != null) {
928 oldData.invalidate();
929 }
930 XToolkit.targetDisposedPeer(target, this);
931 destroy();
932 }
933
934 /**
935 * Invokes event processing on eventHandlerThread
936 * This function needs to be overriden since
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