examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet323.java - platform/eclipse.platform.swt - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2009 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.swt.snippets;

 /*
  * Browser example snippet: View DOM tree and edit node values in a Mozilla Browser
  *
  * IMPORTANT: For this snippet to work properly all of the requirements
  * for using JavaXPCOM in a stand-alone application must be satisfied
  * (see http://www.eclipse.org/swt/faq.php#howusejavaxpcom).
  *
  * For a list of all SWT example snippets see
  * http://www.eclipse.org/swt/snippets/
  *
  * @since 3.3
  */

 import org.eclipse.swt.SWT;
 import org.eclipse.swt.browser.*;
 import org.eclipse.swt.custom.*;
 import org.eclipse.swt.events.*;
 import org.eclipse.swt.graphics.*;
 import org.eclipse.swt.layout.*;
 import org.eclipse.swt.widgets.*;
 import org.mozilla.interfaces.*;

 public class Snippet323 {

 public static void main (String[] args) {
 	new Snippet323 ().run ();
 }

 void run () {
 	final Display display = new Display ();
 	final Shell shell = new Shell (display);
 	shell.setBounds (10,10,500,500);
 	shell.setLayout (new FillLayout ());
 	final Browser browser = new Browser (shell, SWT.MOZILLA);
 	browser.setUrl ("http://www.google.com");
 	browser.addProgressListener (new ProgressAdapter () {
 		@Override
 		public void completed (ProgressEvent event) {
 			nsIWebBrowser webBrowser = (nsIWebBrowser)browser.getWebBrowser ();
 			nsIDOMWindow domWindow = webBrowser.getContentDOMWindow ();
 			nsIDOMDocument document = domWindow.getDocument ();
 			nsIDOMElement documentElement = document.getDocumentElement ();
 			DOMEditor domEditor = new DOMEditor (shell);
 			domEditor.populate (documentElement);
 		}
 	});

 	shell.open ();
 	while (!shell.isDisposed ()) {
 		if (!display.readAndDispatch ()) display.sleep ();
 	}
 	display.dispose ();
 }

 class DOMEditor {
 	Tree tree;

 	public DOMEditor (Shell parent) {
 		super ();
 		Shell shell = new Shell (parent, SWT.SHELL_TRIM);
 		shell.setText ("DOM Editor");
 		shell.setBounds (510,10,400,400);
 		shell.setLayout (new FillLayout ());

 		tree = new Tree (shell, SWT.NONE);
 		shell.open ();
 		final TreeItem[] lastItem = new TreeItem[1];
 		final TreeEditor editor = new TreeEditor (tree);
 		tree.addSelectionListener (new SelectionAdapter () {
 			@Override
 			public void widgetDefaultSelected (SelectionEvent e) {
 				final TreeItem item = (TreeItem)e.item;
 				final nsIDOMNode node = (nsIDOMNode)item.getData ();
 				if (node == null) return; 	/* not editable */
 				if (item != null && item == lastItem[0]) {
 					final Composite composite = new Composite (tree, SWT.NONE);
 					final Text text = new Text (composite, SWT.NONE);
 					final int inset = 1;
 					composite.addListener (SWT.Resize, new Listener () {
 						@Override
 						public void handleEvent (Event e) {
 							Rectangle rect = composite.getClientArea ();
 							text.setBounds (rect.x + inset, rect.y + inset, rect.width - inset * 2, rect.height - inset * 2);
 						}
 					});
 					Listener textListener = new Listener () {
 						@Override
 						public void handleEvent (final Event e) {
 							switch (e.type) {
 								case SWT.FocusOut:
 									String string = text.getText ();
 									node.setNodeValue (string);
 									item.setText ("Node Value: " + node.getNodeValue ());
 									composite.dispose ();
 									break;
 								case SWT.Verify:
 									String newText = text.getText ();
 									String leftText = newText.substring (0, e.start);
 									String rightText = newText.substring (e.end, newText.length ());
 									GC gc = new GC (text);
 									Point size = gc.textExtent (leftText + e.text + rightText);
 									gc.dispose ();
 									size = text.computeSize (size.x, SWT.DEFAULT);
 									editor.horizontalAlignment = SWT.LEFT;
 									Rectangle itemRect = item.getBounds (), rect = tree.getClientArea ();
 									editor.minimumWidth = Math.max (size.x, itemRect.width) + inset * 2;
 									int left = itemRect.x, right = rect.x + rect.width;
 									editor.minimumWidth = Math.min (editor.minimumWidth, right - left);
 									editor.minimumHeight = size.y + inset * 2;
 									editor.layout ();
 									break;
 								case SWT.Traverse:
 									switch (e.detail) {
 										case SWT.TRAVERSE_RETURN:
 											string = text.getText ();
 											node.setNodeValue (string);
 											item.setText ("Node Value: " + node.getNodeValue ());
 											//FALL THROUGH
 										case SWT.TRAVERSE_ESCAPE:
 											composite.dispose ();
 											e.doit = false;
 									}
 									break;
 							}
 						}
 					};
 					text.addListener (SWT.FocusOut, textListener);
 					text.addListener (SWT.Traverse, textListener);
 					text.addListener (SWT.Verify, textListener);
 					editor.setEditor (composite, item);
 					String nodeValue = node.getNodeValue ();
 					text.setText (nodeValue == null ? "null" : nodeValue);
 					text.selectAll ();
 					text.setFocus ();
 				}
 				lastItem [0] = item;
 			}
 		});
 	}

 	public void populate (nsIDOMElement element) {
 		tree.removeAll ();
 		TreeItem root = new TreeItem (tree, SWT.NONE);
 		root.setText ("Root: " + element.getTagName ());
 		populate (root, element);
 	}

 	void populate (TreeItem parentItem, nsIDOMNode node) {
 		String nodeName = node.getNodeName ();
 		if (nodeName.length () > 0) {
 			new TreeItem (parentItem, SWT.NONE).setText ("Node Name: " + nodeName);
 		}
 		String localName = node.getLocalName ();
 		if (localName != null && localName.length () > 0) {
 			new TreeItem (parentItem, SWT.NONE).setText ("Local Name: " + localName);
 		}

 		TreeItem valueItem = new TreeItem (parentItem, SWT.NONE);
 		String nodeValue = node.getNodeValue ();
 		valueItem.setText ("Node Value: " + nodeValue);
 		if (node != null) {
 			valueItem.setData (node);
 			Color red = parentItem.getDisplay ().getSystemColor (SWT.COLOR_RED);
 			valueItem.setForeground (red);
 		}

 		String prefix = node.getPrefix ();
 		if (prefix != null && prefix.length () > 0) {
 			new TreeItem (parentItem, SWT.NONE).setText ("Prefix: " + prefix);
 		}
 		String namespaceURI = node.getNamespaceURI ();
 		if (namespaceURI != null && namespaceURI.length () > 0) {
 			new TreeItem (parentItem, SWT.NONE).setText ("Namespace URI: " + namespaceURI);
 		}

 		nsIDOMNamedNodeMap attributes = node.getAttributes ();
 		if (attributes != null) {
 			int count = (int)attributes.getLength ();
 			if (count > 0) {
 				for (int i = 0; i < count; i++) {
 					TreeItem attributeItem = new TreeItem (parentItem, SWT.NONE);
 					nsIDOMNode child = attributes.item (i);
 					attributeItem.setText ("Attribute " + i + " (" + child.getNodeName () + ")");
 					populate (attributeItem, child);
 				}
 			}
 		}
 		String typeString;
 		switch (node.getNodeType ()) {
 			case 1: typeString = "ELEMENT_NODE"; break;
 			case 2: typeString = "ATTRIBUTE_NODE"; break;
 			case 3: typeString = "TEXT_NODE"; break;
 			case 4: typeString = "CDATA_SECTION_NODE"; break;
 			case 5: typeString = "ENTITY_REFERENCE_NODE"; break;
 			case 6: typeString = "ENTITY_NODE"; break;
 			case 7: typeString = "PROCESSING_INSTRUCTION_NODE"; break;
 			case 8: typeString = "COMMENT_NODE"; break;
 			case 9: typeString = "DOCUMENT_NODE"; break;
 			case 10: typeString = "DOCUMENT_TYPE_NODE"; break;
 			case 11: typeString = "DOCUMENT_FRAGMENT_NODE"; break;
 			case 12: typeString = "NOTATION_NODE"; break;
 			default: typeString = "unknown?!?";
 		}
 		new TreeItem (parentItem, SWT.NONE).setText ("Type: " + typeString);

 		nsIDOMNodeList children = node.getChildNodes ();
 		int count = (int)children.getLength ();
 		if (count > 0) {
 			for (int i = 0; i < count; i++) {
 				TreeItem childItem = new TreeItem (parentItem, SWT.NONE);
 				nsIDOMNode child = children.item (i);
 				childItem.setText ("Child " + i + " (" + child.getNodeName () + ")");
 				populate (childItem, child);
 			}
 		}
 	}
 }

 }
	/*******************************************************************************
	* Copyright (c) 2000, 2009 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.swt.snippets;

	/*
	* Browser example snippet: View DOM tree and edit node values in a Mozilla Browser
	*
	* IMPORTANT: For this snippet to work properly all of the requirements
	* for using JavaXPCOM in a stand-alone application must be satisfied
	* (see http://www.eclipse.org/swt/faq.php#howusejavaxpcom).
	*
	* For a list of all SWT example snippets see
	* http://www.eclipse.org/swt/snippets/
	*
	* @since 3.3
	*/

	import org.eclipse.swt.SWT;
	import org.eclipse.swt.browser.*;
	import org.eclipse.swt.custom.*;
	import org.eclipse.swt.events.*;
	import org.eclipse.swt.graphics.*;
	import org.eclipse.swt.layout.*;
	import org.eclipse.swt.widgets.*;
	import org.mozilla.interfaces.*;

	public class Snippet323 {

	public static void main (String[] args) {
	new Snippet323 ().run ();
	}

	void run () {
	final Display display = new Display ();
	final Shell shell = new Shell (display);
	shell.setBounds (10,10,500,500);
	shell.setLayout (new FillLayout ());
	final Browser browser = new Browser (shell, SWT.MOZILLA);
	browser.setUrl ("http://www.google.com");
	browser.addProgressListener (new ProgressAdapter () {
	@Override
	public void completed (ProgressEvent event) {
	nsIWebBrowser webBrowser = (nsIWebBrowser)browser.getWebBrowser ();
	nsIDOMWindow domWindow = webBrowser.getContentDOMWindow ();
	nsIDOMDocument document = domWindow.getDocument ();
	nsIDOMElement documentElement = document.getDocumentElement ();
	DOMEditor domEditor = new DOMEditor (shell);
	domEditor.populate (documentElement);
	}
	});

	shell.open ();
	while (!shell.isDisposed ()) {
	if (!display.readAndDispatch ()) display.sleep ();
	}
	display.dispose ();
	}

	class DOMEditor {
	Tree tree;

	public DOMEditor (Shell parent) {
	super ();
	Shell shell = new Shell (parent, SWT.SHELL_TRIM);
	shell.setText ("DOM Editor");
	shell.setBounds (510,10,400,400);
	shell.setLayout (new FillLayout ());

	tree = new Tree (shell, SWT.NONE);
	shell.open ();
	final TreeItem[] lastItem = new TreeItem[1];
	final TreeEditor editor = new TreeEditor (tree);
	tree.addSelectionListener (new SelectionAdapter () {
	@Override
	public void widgetDefaultSelected (SelectionEvent e) {
	final TreeItem item = (TreeItem)e.item;
	final nsIDOMNode node = (nsIDOMNode)item.getData ();
	if (node == null) return; /* not editable */
	if (item != null && item == lastItem[0]) {
	final Composite composite = new Composite (tree, SWT.NONE);
	final Text text = new Text (composite, SWT.NONE);
	final int inset = 1;
	composite.addListener (SWT.Resize, new Listener () {
	@Override
	public void handleEvent (Event e) {
	Rectangle rect = composite.getClientArea ();
	text.setBounds (rect.x + inset, rect.y + inset, rect.width - inset * 2, rect.height - inset * 2);
	}
	});
	Listener textListener = new Listener () {
	@Override
	public void handleEvent (final Event e) {
	switch (e.type) {
	case SWT.FocusOut:
	String string = text.getText ();
	node.setNodeValue (string);
	item.setText ("Node Value: " + node.getNodeValue ());
	composite.dispose ();
	break;
	case SWT.Verify:
	String newText = text.getText ();
	String leftText = newText.substring (0, e.start);
	String rightText = newText.substring (e.end, newText.length ());
	GC gc = new GC (text);
	Point size = gc.textExtent (leftText + e.text + rightText);
	gc.dispose ();
	size = text.computeSize (size.x, SWT.DEFAULT);
	editor.horizontalAlignment = SWT.LEFT;
	Rectangle itemRect = item.getBounds (), rect = tree.getClientArea ();
	editor.minimumWidth = Math.max (size.x, itemRect.width) + inset * 2;
	int left = itemRect.x, right = rect.x + rect.width;
	editor.minimumWidth = Math.min (editor.minimumWidth, right - left);
	editor.minimumHeight = size.y + inset * 2;
	editor.layout ();
	break;
	case SWT.Traverse:
	switch (e.detail) {
	case SWT.TRAVERSE_RETURN:
	string = text.getText ();
	node.setNodeValue (string);
	item.setText ("Node Value: " + node.getNodeValue ());
	//FALL THROUGH
	case SWT.TRAVERSE_ESCAPE:
	composite.dispose ();
	e.doit = false;
	}
	break;
	}
	}
	};
	text.addListener (SWT.FocusOut, textListener);
	text.addListener (SWT.Traverse, textListener);
	text.addListener (SWT.Verify, textListener);
	editor.setEditor (composite, item);
	String nodeValue = node.getNodeValue ();
	text.setText (nodeValue == null ? "null" : nodeValue);
	text.selectAll ();
	text.setFocus ();
	}
	lastItem [0] = item;
	}
	});
	}

	public void populate (nsIDOMElement element) {
	tree.removeAll ();
	TreeItem root = new TreeItem (tree, SWT.NONE);
	root.setText ("Root: " + element.getTagName ());
	populate (root, element);
	}

	void populate (TreeItem parentItem, nsIDOMNode node) {
	String nodeName = node.getNodeName ();
	if (nodeName.length () > 0) {
	new TreeItem (parentItem, SWT.NONE).setText ("Node Name: " + nodeName);
	}
	String localName = node.getLocalName ();
	if (localName != null && localName.length () > 0) {
	new TreeItem (parentItem, SWT.NONE).setText ("Local Name: " + localName);
	}

	TreeItem valueItem = new TreeItem (parentItem, SWT.NONE);
	String nodeValue = node.getNodeValue ();
	valueItem.setText ("Node Value: " + nodeValue);
	if (node != null) {
	valueItem.setData (node);
	Color red = parentItem.getDisplay ().getSystemColor (SWT.COLOR_RED);
	valueItem.setForeground (red);
	}

	String prefix = node.getPrefix ();
	if (prefix != null && prefix.length () > 0) {
	new TreeItem (parentItem, SWT.NONE).setText ("Prefix: " + prefix);
	}
	String namespaceURI = node.getNamespaceURI ();
	if (namespaceURI != null && namespaceURI.length () > 0) {
	new TreeItem (parentItem, SWT.NONE).setText ("Namespace URI: " + namespaceURI);
	}

	nsIDOMNamedNodeMap attributes = node.getAttributes ();
	if (attributes != null) {
	int count = (int)attributes.getLength ();
	if (count > 0) {
	for (int i = 0; i < count; i++) {
	TreeItem attributeItem = new TreeItem (parentItem, SWT.NONE);
	nsIDOMNode child = attributes.item (i);
	attributeItem.setText ("Attribute " + i + " (" + child.getNodeName () + ")");
	populate (attributeItem, child);
	}
	}
	}
	String typeString;
	switch (node.getNodeType ()) {
	case 1: typeString = "ELEMENT_NODE"; break;
	case 2: typeString = "ATTRIBUTE_NODE"; break;
	case 3: typeString = "TEXT_NODE"; break;
	case 4: typeString = "CDATA_SECTION_NODE"; break;
	case 5: typeString = "ENTITY_REFERENCE_NODE"; break;
	case 6: typeString = "ENTITY_NODE"; break;
	case 7: typeString = "PROCESSING_INSTRUCTION_NODE"; break;
	case 8: typeString = "COMMENT_NODE"; break;
	case 9: typeString = "DOCUMENT_NODE"; break;
	case 10: typeString = "DOCUMENT_TYPE_NODE"; break;
	case 11: typeString = "DOCUMENT_FRAGMENT_NODE"; break;
	case 12: typeString = "NOTATION_NODE"; break;
	default: typeString = "unknown?!?";
	}
	new TreeItem (parentItem, SWT.NONE).setText ("Type: " + typeString);

	nsIDOMNodeList children = node.getChildNodes ();
	int count = (int)children.getLength ();
	if (count > 0) {
	for (int i = 0; i < count; i++) {
	TreeItem childItem = new TreeItem (parentItem, SWT.NONE);
	nsIDOMNode child = children.item (i);
	childItem.setText ("Child " + i + " (" + child.getNodeName () + ")");
	populate (childItem, child);
	}
	}
	}
	}

	}