Source Code Cross Referenced for XEditorXuiBuilder.java in  » XML-UI » XUI » net » xoetrope » builder » editor » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » XML UI » XUI » net.xoetrope.builder.editor 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        package net.xoetrope.builder.editor;
002:
003:        import java.io.File;
004:        import java.io.Reader;
005:        import java.net.MalformedURLException;
006:        import java.net.URL;
007:        import java.net.URLClassLoader;
008:        import java.util.Vector;
009:
010:        import java.awt.AWTEvent;
011:        import java.awt.Component;
012:        import java.awt.TextComponent;
013:
014:        import net.xoetrope.builder.XuiBuilder;
015:        import net.xoetrope.builder.editor.components.swing.XComponentProxy;
016:        import net.xoetrope.debug.DebugLogger;
017:        import net.xoetrope.xml.XmlElement;
018:        import net.xoetrope.xui.XModelHolder;
019:        import net.xoetrope.xui.XPage;
020:        import net.xoetrope.xui.XProjectManager;
021:        import net.xoetrope.xui.XResourceManager;
022:        import net.xoetrope.xui.build.BuildProperties;
023:        import net.xoetrope.xui.data.XDataBinding;
024:        import net.xoetrope.xui.data.XListBinding;
025:        import net.xoetrope.xui.data.XModel;
026:        import net.xoetrope.xui.data.XModelAdapter;
027:        import net.xoetrope.xui.data.XStateBinding;
028:        import net.xoetrope.xui.data.XTextBinding;
029:        import net.xoetrope.xui.style.XStyleFactory;
030:        import net.xoetrope.xui.validation.XValidationHandler;
031:        import net.xoetrope.xui.data.XRadioBinding;
032:
033:        /**
034:         * Subclasses the XuiBuilder primarily to listen for the events being registered
035:         * for components
036:         * <p>Copyright (c) Xoetrope Ltd., 1998-2004</p>
037:         * $Revision: 1.19 $
038:         * License: see license.txt
039:         */
040:        public class XEditorXuiBuilder extends XuiBuilder {
041:            protected XPageHolder pageHolder;
042:            protected XEditorProject currentProject;
043:            protected XPageResource currentResource;
044:            protected XAttributeEvaluator evaluator;
045:
046:            /**
047:             * Construct a new builder and set a custom XStyleFactory
048:             * @param stylefact A custom XStyleFactory
049:             */
050:            public XEditorXuiBuilder(XEditorProject project,
051:                    XStyleFactory stylefact, XPageHolder ph) {
052:                super (XPage.XUI_SWING_PACKAGE);
053:
054:                currentProject = project;
055:                componentFactory = stylefact;
056:                pageHolder = ph;
057:                evaluator = null;
058:            }
059:
060:            /**
061:             * Adds data bindings to the page.
062:             * @param page the page to which the component/data bindings are added
063:             * @param model the data model
064:             */
065:            protected void addBindings(XPage page, XmlElement model) {
066:                if (model == null)
067:                    return;
068:
069:                String nameStr = null, srcStr, adapterStr, typeStr;
070:                XModel rootNode = XProjectManager.getModel();
071:
072:                Vector eventNodes = model.getChildren();
073:                int numChildren = eventNodes.size();
074:                for (int i = 0; i < numChildren; i++) {
075:                    XmlElement childNode = (XmlElement) eventNodes.elementAt(i);
076:                    try {
077:                        nameStr = childNode.getAttribute("target");
078:                        srcStr = childNode.getAttribute("source");
079:                        typeStr = childNode.getAttribute("type");
080:                        XModel dataModel = (XModel) rootNode.get(srcStr);
081:
082:                        Component targetComp = page.findComponent(nameStr);
083:                        XDataBinding factoryBinding = getFactoryBinding(
084:                                targetComp, dataModel, childNode);
085:                        if (factoryBinding != null)
086:                            page.addBinding(factoryBinding);
087:                        else {
088:                            Component proxyComp = targetComp;
089:                            if (targetComp instanceof  XComponentProxy) {
090:                                targetComp = ((XComponentProxy) targetComp)
091:                                        .getProxiedComponent();
092:                            }
093:
094:                            XModel srcModel = (XModel) rootNode.get(page
095:                                    .evaluatePath(srcStr));
096:                            if (targetComp.getClass().getName().indexOf(
097:                                    "XComboBox") >= 0) {
098:                                XListBinding binding;
099:
100:                                // Check for a specific binding
101:                                adapterStr = childNode.getAttribute("adapter");
102:                                if (adapterStr != null
103:                                        && adapterStr.length() > 0) {
104:                                    // Assume a table is bound to the node
105:                                    XModelAdapter adapter = (XModelAdapter) Class
106:                                            .forName(adapterStr).newInstance();
107:                                    XModel tableModel = (XModel) rootNode
108:                                            .get(srcStr);
109:                                    adapter.setModel(tableModel);
110:                                    binding = new XListBinding(proxyComp,
111:                                            adapter);
112:                                } else { // Otherwise static data is being bound
113:                                    String destStr = childNode
114:                                            .getAttribute("output");
115:                                    if (destStr == null)
116:                                        destStr = srcStr;
117:
118:                                    XModel dstModel = (XModel) rootNode
119:                                            .get(page.evaluatePath(destStr));
120:                                    binding = new XListBinding(proxyComp,
121:                                            srcStr, destStr, srcModel, dstModel);
122:                                }
123:
124:                                // Check and set the unique rows property
125:                                String attrib = childNode
126:                                        .getAttribute("unique");
127:                                if ((attrib != null)
128:                                        && (attrib.compareTo("true") == 0))
129:                                    binding.setUseUnique(true);
130:                                page.addBinding(binding);
131:                            } else if (targetComp.getClass().getName().indexOf(
132:                                    "XEdit") >= 0)
133:                                page.addBinding(new XTextBinding(targetComp,
134:                                        srcStr, srcModel));
135:                            else if (targetComp.getClass().getName().indexOf(
136:                                    "XTextArea") >= 0)
137:                                page.addBinding(new XTextBinding(targetComp,
138:                                        srcStr, srcModel));
139:                            else if (targetComp.getClass().getName().indexOf(
140:                                    "XButton") >= 0)
141:                                page.addBinding(new XTextBinding(targetComp,
142:                                        srcStr, srcModel));
143:                            else if (targetComp.getClass().getName().indexOf(
144:                                    "XLabel") >= 0)
145:                                page.addBinding(new XTextBinding(targetComp,
146:                                        srcStr, srcModel));
147:                            else if (targetComp.getClass().getName().indexOf(
148:                                    "XRadioButton") >= 0) {
149:                                if (typeStr != null)
150:                                    if (typeStr.equals("text"))
151:                                        page.addBinding(new XTextBinding(
152:                                                targetComp, srcStr, srcModel));
153:                                    else if (typeStr.equals("state")) {
154:                                        XStateBinding sb = new XStateBinding(
155:                                                targetComp, srcStr, srcModel,
156:                                                childNode.getAttribute("leaf"));
157:                                        String destStr = childNode
158:                                                .getAttribute("output");
159:                                        if (destStr != null)
160:                                            sb.setOutputPath(destStr);
161:                                        page.addBinding(sb);
162:                                    } else
163:                                        page.addBinding(new XRadioBinding(
164:                                                targetComp, srcStr, srcModel));
165:                            } else if (targetComp.getClass().getName().indexOf(
166:                                    "XCheckbox") >= 0) {
167:                                if ((typeStr != null)
168:                                        && (typeStr.equals("text")))
169:                                    page.addBinding(new XTextBinding(
170:                                            targetComp, srcStr, srcModel));
171:                                else {
172:                                    XStateBinding sb = new XStateBinding(
173:                                            targetComp, srcStr, srcModel,
174:                                            childNode.getAttribute("leaf"));
175:                                    String destStr = childNode
176:                                            .getAttribute("output");
177:                                    if (destStr != null)
178:                                        sb.setOutputPath(destStr);
179:                                    page.addBinding(sb);
180:                                }
181:                            } else if (targetComp.getClass().getName().indexOf(
182:                                    "XTable") >= 0) {
183:                                XModel tableModel = (XModel) rootNode
184:                                        .get(srcStr);
185:                                ((XModelHolder) targetComp)
186:                                        .setModel(tableModel);
187:                            } else if (targetComp instanceof  TextComponent)
188:                                page.addBinding(new XTextBinding(targetComp,
189:                                        srcStr, srcModel));
190:                        }
191:                    } catch (Exception e) {
192:                        if (BuildProperties.DEBUG)
193:                            DebugLogger
194:                                    .logError("While adding the data binding element: "
195:                                            + nameStr);
196:                        e.printStackTrace();
197:                    }
198:                }
199:            }
200:
201:            /**
202:             * Adds an individual component element to the page (this method may be called
203:             * recursively for nested elements). Several methods will be attempted until a
204:             * component is successfully created. Firstly the built-in component types are
205:             * checked, then any additional registered component constructors. The types
206:             * can be specified by type ID, type name or class name.
207:             * @param childNode the XML element containing the component specification.
208:             */
209:            protected Component addComponent(XmlElement childNode) {
210:                Component comp = super .addComponent(childNode);
211:                if (comp != null) {
212:                    String styleValue = (String) childNode
213:                            .getAttribute("style");
214:                    if (styleValue != null)
215:                        currentResource.setStyleName(comp, styleValue);
216:                }
217:                return comp;
218:            }
219:
220:            /**
221:             * Overrides the super method. First call the super method and then register
222:             * the event with the Project. This allows the editor to display the
223:             * methods for components when they are selected and also to save them.
224:             * @param xpage The page that contains the response methods
225:             * @param targetComp the component to which the event handler is added
226:             * @param typeStr the type of handler
227:             * @param name the name of the response method
228:             */
229:            protected void addHandler(XPage xPage, Component targetComp,
230:                    String typeStr, String name) {
231:                if (!(xPage.getEventHandler() instanceof  XEditorEventHandler)) {
232:                    XEditorEventHandler eventHandler = new XEditorEventHandler(
233:                            pageHolder, xPage.getEventHandler(), xPage,
234:                            new XValidationHandler(xPage));
235:                    page.setEventHandler(eventHandler);
236:                    pageHolder.addListeners(xPage, eventHandler);
237:                }
238:                super .addHandler(xPage, targetComp, typeStr, name);
239:
240:                long eventMask = 0;
241:                if (typeStr.compareTo("MouseHandler") == 0)
242:                    eventMask = AWTEvent.MOUSE_EVENT_MASK;
243:                else if (typeStr.compareTo("MouseMotionHandler") == 0)
244:                    eventMask = AWTEvent.MOUSE_MOTION_EVENT_MASK;
245:                else if (typeStr.compareTo("ActionHandler") == 0)
246:                    eventMask = AWTEvent.ACTION_EVENT_MASK;
247:                else if (typeStr.compareTo("FocusHandler") == 0)
248:                    eventMask = AWTEvent.FOCUS_EVENT_MASK;
249:                else if (typeStr.compareTo("ItemHandler") == 0)
250:                    eventMask = AWTEvent.ITEM_EVENT_MASK;
251:                else if (typeStr.compareTo("KeyHandler") == 0)
252:                    eventMask = AWTEvent.KEY_EVENT_MASK;
253:                else if (typeStr.compareTo("TextHandler") == 0)
254:                    eventMask = AWTEvent.TEXT_EVENT_MASK;
255:
256:                currentProject.getPageResource(xPage.getName()).addCtlEvent(
257:                        targetComp, eventMask, name);
258:            }
259:
260:            protected void setPageName(String pageName) {
261:                currentResource = currentProject.getPageResource(pageName);
262:
263:                super .setPageName(pageName);
264:            }
265:
266:            /**
267:             * Loads a class as the basis for a page. Reloads the class each time so that
268:             * the code can be recompiled and reloaded for preview mode.
269:             * @param className the full class name
270:             * @return an instance of the XPage class or a derivative
271:             * @throws ClassNotFoundException
272:             * @throws IllegalAccessException
273:             * @throws InstantiationException
274:             */
275:            protected XPage loadClass(String className)
276:                    throws ClassNotFoundException, IllegalAccessException,
277:                    InstantiationException {
278:                try {
279:                    // Create new class loader
280:                    // with current dir as CLASSPATH
281:                    File file = new File(currentProject.getClassPath());
282:                    ClassLoader loader = new URLClassLoader(new URL[] { file
283:                            .toURL() }, getClass().getClassLoader());
284:                    // load class through new loader
285:                    Class aClass = loader.loadClass(className);
286:                    return (XPage) aClass.newInstance();
287:                } catch (MalformedURLException ex) {
288:                }
289:
290:                return (XPage) Class.forName(className).newInstance();
291:            }
292:
293:            /**
294:             * Loads an XPage via a reader obtained from the XResourceManager (searches
295:             * the classpath). The pageName is assumed to be the name of an XML file. For
296:             * example if the pageName is 'welcome' then the 'welcome.xml' file is read as
297:             * a UTF8 encoded XML file.
298:             * @param defPackageName the package or path to the page
299:             * @param pageName the page name or the name of the class implementing the page
300:             * @param include true if the page to be loaded is being included in another
301:             * page in which case any class attribute of the included page is ignored
302:             * @param fullPathProvided the full path to the page name is provided
303:             * @return the page
304:             */
305:            public XPage loadPage(String defPackageName, String pageName,
306:                    boolean include, boolean fullPathProvided) {
307:                packageName = defPackageName;
308:
309:                Reader r = null;
310:                try {
311:                    r = XResourceManager.getBufferedReader(pageName, null);
312:                } catch (Exception ex) {
313:                    if (BuildProperties.DEBUG)
314:                        DebugLogger.logError("File NOT found: " + pageName);
315:                }
316:                if (r == null)
317:                    return null;
318:
319:                return readPage(r, pageName, include);
320:            }
321:
322:            public void setPageAttribute(Component c, String attributeName,
323:                    String attributeValue) {
324:                if (attributeName.compareTo("style") == 0)
325:                    currentResource.setStyleName(c, attributeValue);
326:                else
327:                    currentResource.setPageAttribute(attributeName,
328:                            attributeValue);
329:            }
330:
331:            /**
332:             * Get the value of an attribute.
333:             * @param page the page being loaded
334:             * @param attributeValue the raw value of the attribute
335:             * @return the evaluated value of the attribute
336:             */
337:            public Object evaluateAttribute(XPage page, String attributeValue) {
338:                if (evaluator != null)
339:                    return evaluator.evaluateAttribute(page, attributeValue);
340:                return page.evaluateAttribute(attributeValue);
341:            }
342:
343:            /**
344:             * Set the attribute evaluator object.
345:             * @param e the new evaluator
346:             */
347:            public void setAttributeEvaluator(XAttributeEvaluator e) {
348:                evaluator = e;
349:            }
350:        }
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