Source Code Cross Referenced for MenuRenderer.java in  » Web-Framework » ThinWire » thinwire » render » web » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Framework » ThinWire » thinwire.render.web 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:        #IFNDEF ALT_LICENSE
003:                                   ThinWire(R) RIA Ajax Framework
004:                         Copyright (C) 2003-2007 Custom Credit Systems
005:
006:          This library is free software; you can redistribute it and/or modify it under
007:          the terms of the GNU Lesser General Public License as published by the Free
008:          Software Foundation; either version 2.1 of the License, or (at your option) any
009:          later version.
010:
011:          This library is distributed in the hope that it will be useful, but WITHOUT ANY
012:          WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
013:          PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
014:
015:          You should have received a copy of the GNU Lesser General Public License along
016:          with this library; if not, write to the Free Software Foundation, Inc., 59
017:          Temple Place, Suite 330, Boston, MA 02111-1307 USA
018:
019:          Users who would rather have a commercial license, warranty or support should
020:          contact the following company who invented, built and supports the technology:
021:          
022:                        Custom Credit Systems, Richardson, TX 75081, USA.
023:           	            email: info@thinwire.com    ph: +1 (888) 644-6405
024:         	                        http://www.thinwire.com
025:        #ENDIF
026:         [ v1.2_RC2 ] 
027:         */
028:        package thinwire.render.web;
029:
030:        import java.util.HashMap;
031:        import java.util.List;
032:        import java.util.Map;
033:        import java.util.regex.Pattern;
034:
035:        import thinwire.ui.Component;
036:        import thinwire.ui.Window;
037:        import thinwire.ui.HierarchyComponent;
038:        import thinwire.ui.Menu;
039:        import thinwire.ui.event.ActionEvent;
040:        import thinwire.ui.event.ItemChangeEvent;
041:        import thinwire.ui.event.ItemChangeListener;
042:        import thinwire.ui.event.KeyPressEvent;
043:        import thinwire.ui.event.KeyPressListener;
044:        import thinwire.ui.event.PropertyChangeEvent;
045:
046:        /**
047:         * @author Joshua J. Gertzen
048:         */
049:        final class MenuRenderer extends ComponentRenderer implements 
050:                ItemChangeListener {
051:            private static final Pattern REGEX_AMP = Pattern
052:                    .compile("[&](\\w)");
053:            private static final Pattern REGEX_DAMP = Pattern
054:                    .compile("[&]{1,2}");
055:            private static final String MENU_CLASS = "tw_Menu";
056:            private static final String ITEM_REMOVE = "itemRemove";
057:            private static final String ITEM_LOAD = "itemLoad";
058:            private static final String ITEM_SET_TEXT = "itemSetText";
059:            private static final String ITEM_SET_KEY_PRESS_COMBO = "itemSetKeyPressCombo";
060:            private static final String ITEM_SET_IMAGE_URL = "itemSetImageUrl";
061:            private static final String ITEM_SET_ENABLED = "itemSetEnabled";
062:            private Menu menu;
063:            private Map<Menu.Item, KeyPressListener> itemToKeyPressListeners;
064:            private StringBuilder sb;
065:
066:            void render(WindowRenderer wr, Component c,
067:                    ComponentRenderer container) {
068:                init(MENU_CLASS, wr, c, container);
069:
070:                boolean windowMenu = container instanceof  WindowRenderer
071:                        && comp
072:                                .equals(((Window) ((WindowRenderer) container).comp)
073:                                        .getMenu());
074:
075:                //a menu does not support the focus, enabled, x, y, width or height properties
076:                if (windowMenu) {
077:                    setPropertyChangeIgnored(Component.PROPERTY_X, true);
078:                    setPropertyChangeIgnored(Component.PROPERTY_Y, true);
079:                    setPropertyChangeIgnored(Component.PROPERTY_WIDTH, true);
080:                    setPropertyChangeIgnored(Component.PROPERTY_VISIBLE, true);
081:                }
082:
083:                setPropertyChangeIgnored(Component.PROPERTY_FOCUS, true);
084:
085:                menu = (Menu) c;
086:                sb = new StringBuilder();
087:                buildMenuChildrenInit((Menu.Item) menu.getRootItem(), true);
088:                menu.addItemChangeListener(this );
089:                addInitProperty("initData", sb);
090:                addInitProperty("windowMenu", windowMenu);
091:                super .render(wr, c, container);
092:                sb.setLength(0);
093:            }
094:
095:            void destroy() {
096:                Window w = (Window) wr.comp;
097:                super .destroy();
098:
099:                if (itemToKeyPressListeners != null) {
100:                    for (KeyPressListener l : itemToKeyPressListeners.values()) {
101:                        w.removeKeyPressListener(l);
102:                    }
103:                }
104:
105:                menu.removeItemChangeListener(this );
106:                menu = null;
107:                sb = null;
108:            }
109:
110:            public void propertyChange(PropertyChangeEvent pce) {
111:                String name = pce.getPropertyName();
112:                Object newValue = pce.getNewValue();
113:                Object source = pce.getSource();
114:
115:                if (source instanceof  Menu.Item) {
116:                    Menu.Item item = (Menu.Item) source;
117:                    String fullIndex = TreeRenderer.fullIndex(item);
118:
119:                    if (name.equals(HierarchyComponent.Item.PROPERTY_ITEM_TEXT)) {
120:                        String text = (String) newValue;
121:                        String oldText = (String) pce.getOldValue();
122:                        boolean oldDivider = oldText.length() < 1;
123:                        boolean newDivider = text.length() < 1;
124:
125:                        if (oldDivider != newDivider) {
126:                            postClientEvent(ITEM_REMOVE, fullIndex);
127:                            fullIndex = TreeRenderer.fullIndex((Menu.Item) item
128:                                    .getParent());
129:
130:                            if (text.length() == 0) {
131:                                buildDividerInit((Menu.Item) source, item
132:                                        .getIndex());
133:                            } else {
134:                                buildMenuInit((Menu.Item) source, item
135:                                        .getIndex(), false);
136:                            }
137:
138:                            postClientEvent(ITEM_LOAD, sb.toString(), fullIndex);
139:                            sb.setLength(0);
140:                        } else {
141:                            postClientEvent(ITEM_SET_TEXT, fullIndex, text);
142:                        }
143:                    } else if (name
144:                            .equals(HierarchyComponent.Item.PROPERTY_ITEM_IMAGE)) {
145:                        postClientEvent(ITEM_SET_IMAGE_URL, fullIndex,
146:                                getQualifiedURL((String) newValue));
147:                    } else if (name
148:                            .equals(Menu.Item.PROPERTY_ITEM_KEY_PRESS_COMBO)) {
149:                        setupKeyPressListener(item);
150:                        postClientEvent(ITEM_SET_KEY_PRESS_COMBO, fullIndex,
151:                                newValue);
152:                    } else if (name.equals(Menu.Item.PROPERTY_ITEM_ENABLED)) {
153:                        postClientEvent(ITEM_SET_ENABLED, fullIndex, newValue);
154:                    }
155:                } else {
156:                    super .propertyChange(pce);
157:                }
158:            }
159:
160:            public void itemChange(ItemChangeEvent ice) {
161:                ItemChangeEvent.Type type = ice.getType();
162:                Menu.Item container = (Menu.Item) ice.getSource();
163:                Integer pos = (Integer) ice.getPosition();
164:
165:                if (type == ItemChangeEvent.Type.REMOVE
166:                        || type == ItemChangeEvent.Type.SET) {
167:                    String fullIndex = pos.toString();
168:                    if (menu.getRootItem() != container)
169:                        fullIndex = TreeRenderer.fullIndex(container) + "."
170:                                + fullIndex;
171:                    postClientEvent(ITEM_REMOVE, fullIndex);
172:                }
173:
174:                if (type == ItemChangeEvent.Type.ADD
175:                        || type == ItemChangeEvent.Type.SET) {
176:                    String fullIndex = TreeRenderer.fullIndex(container);
177:                    Menu.Item nc = (Menu.Item) ice.getNewValue();
178:
179:                    if (nc.getText().length() == 0) {
180:                        buildDividerInit(nc, pos.intValue());
181:                    } else {
182:                        buildMenuInit(nc, pos.intValue(), false);
183:                    }
184:
185:                    postClientEvent(ITEM_LOAD, sb, fullIndex);
186:                    sb.setLength(0);
187:                }
188:            }
189:
190:            private void setupKeyPressListener(final Menu.Item item) {
191:                Window w = (Window) wr.comp;
192:
193:                if (itemToKeyPressListeners == null)
194:                    itemToKeyPressListeners = new HashMap<Menu.Item, KeyPressListener>();
195:                KeyPressListener listener = itemToKeyPressListeners.get(item);
196:
197:                if (listener == null) {
198:                    listener = new KeyPressListener() {
199:                        public void keyPress(KeyPressEvent ev) {
200:                            Menu menu = item.getHierarchy();
201:                            if (menu != null)
202:                                menu.fireAction(new ActionEvent(
203:                                        Menu.ACTION_CLICK, menu, item));
204:                        }
205:                    };
206:
207:                    itemToKeyPressListeners.put(item, listener);
208:                    w.addKeyPressListener(item.getKeyPressCombo(), listener);
209:                }
210:            }
211:
212:            private void buildMenuInit(Menu.Item item, int index, boolean isRoot) {
213:                sb.append('{');
214:                sb.append("en:").append(item.isEnabled());
215:                String text = item.getText();
216:
217:                if (text.indexOf('&') >= 0) {
218:                    text = REGEX_AMP.matcher(text).replaceFirst("<u>$1</u>");
219:                    text = REGEX_DAMP.matcher(text).replaceAll("&amp;");
220:                }
221:
222:                sb.append(",t:");
223:                GridBoxRenderer.getValue(this , text, null, sb);
224:                String keyPressCombo = item.getKeyPressCombo();
225:
226:                if (keyPressCombo.length() > 0) {
227:                    sb.append(",k:\"").append(keyPressCombo).append('"');
228:                    setupKeyPressListener(item);
229:                }
230:
231:                if (index != -1)
232:                    sb.append(",x:").append(index);
233:
234:                if (item.getChildren().size() > 0) {
235:                    sb.append(",c:");
236:                    buildMenuChildrenInit(item, false);
237:                }
238:
239:                String img = item.getImage();
240:                if (img.length() > 0)
241:                    sb.append(",g:\"").append(getQualifiedURL(item.getImage()))
242:                            .append('"');
243:                sb.append('}');
244:            }
245:
246:            private void buildMenuChildrenInit(Menu.Item menu, boolean isRoot) {
247:                sb.append('[');
248:                List<Menu.Item> content = menu.getChildren();
249:
250:                for (int i = 0, cnt = content.size(); i < cnt; i++) {
251:                    Menu.Item c = content.get(i);
252:
253:                    if (isRoot || c.getText().length() > 0) {
254:                        buildMenuInit(c, -1, isRoot);
255:                        sb.append(',');
256:                    } else {
257:                        buildDividerInit(c, -1);
258:                        sb.append(',');
259:                    }
260:                }
261:
262:                if (sb.charAt(sb.length() - 1) == '[')
263:                    sb.append(']');
264:                else
265:                    sb.setCharAt(sb.length() - 1, ']');
266:            }
267:
268:            private void buildDividerInit(Menu.Item menu, int index) {
269:                sb.append("{");
270:                sb.append("en:").append(menu.isEnabled());
271:                if (index != -1)
272:                    sb.append(",x:").append(index);
273:                sb.append('}');
274:            }
275:        }
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