| /******************************************************************************* |
| * Copyright (c) 2007, 2013 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: Implement a custom download handler for 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.*; |
| import org.eclipse.swt.browser.*; |
| import org.eclipse.swt.custom.*; |
| import org.eclipse.swt.layout.*; |
| import org.eclipse.swt.widgets.*; |
| import org.mozilla.interfaces.*; |
| import org.mozilla.xpcom.Mozilla; |
| |
| public class Snippet277 { |
| static Shell shell; |
| static Table table; |
| |
| public static void main (String [] args) { |
| Display display = new Display (); |
| shell = new Shell (display); |
| shell.setLayout(new GridLayout ()); |
| shell.setText ("Custom Download Handler"); |
| |
| Browser browser; |
| try { |
| browser = new Browser (shell, SWT.MOZILLA); |
| } catch (SWTError e) { |
| System.out.println ("Could not instantiate Browser: " + e.getMessage ()); |
| display.dispose(); |
| return; |
| } |
| GridData data = new GridData (GridData.FILL_BOTH); |
| data.minimumHeight = 800; |
| data.minimumWidth = 800; |
| browser.setLayoutData (data); |
| |
| table = new Table (shell, SWT.NONE); |
| table.setForeground (display.getSystemColor (SWT.COLOR_RED)); |
| data = new GridData (GridData.FILL_HORIZONTAL); |
| data.exclude = true; |
| table.setLayoutData (data); |
| new TableColumn (table, SWT.NONE); |
| new TableColumn (table, SWT.NONE); |
| |
| nsIComponentRegistrar registrar = Mozilla.getInstance ().getComponentRegistrar (); |
| String NS_DOWNLOAD_CID = "e3fa9D0a-1dd1-11b2-bdef-8c720b597445"; |
| String NS_TRANSFER_CONTRACTID = "@mozilla.org/transfer;1"; |
| registrar.registerFactory (NS_DOWNLOAD_CID, "Transfer", NS_TRANSFER_CONTRACTID, new nsIFactory () { |
| public nsISupports queryInterface (String uuid) { |
| if (uuid.equals (nsIFactory.NS_IFACTORY_IID) || |
| uuid.equals (nsIFactory.NS_ISUPPORTS_IID)) return this; |
| return null; |
| } |
| public nsISupports createInstance (nsISupports outer, String iid) { |
| return createTransfer (); |
| } |
| public void lockFactory (boolean lock) {} |
| }); |
| |
| browser.setUrl ("http://www.eclipse.org/downloads"); |
| shell.pack (); |
| shell.open (); |
| while (!shell.isDisposed ()) { |
| if (!display.readAndDispatch ()) display.sleep (); |
| } |
| display.dispose (); |
| } |
| |
| static nsITransfer createTransfer () { |
| /* nsITransfer is documented at http://www.xulplanet.com/references/xpcomref/ifaces/nsITransfer.html */ |
| return new nsITransfer () { |
| public nsISupports queryInterface (String uuid) { |
| if (uuid.equals (nsITransfer.NS_ITRANSFER_IID) || |
| uuid.equals (nsITransfer.NS_IWEBPROGRESSLISTENER2_IID) || |
| uuid.equals (nsITransfer.NS_IWEBPROGRESSLISTENER_IID) || |
| uuid.equals (nsITransfer.NS_ISUPPORTS_IID)) return this; |
| return null; |
| } |
| public void onStateChange (nsIWebProgress webProgress, nsIRequest request, long stateFlags, long status) { |
| if ((stateFlags & nsIWebProgressListener.STATE_STOP) != 0) { |
| removeFromTable (); |
| } |
| } |
| public void onProgressChange64 (nsIWebProgress webProgress, nsIRequest request, long curSelfProgress, long maxSelfProgress, long curTotalProgress, long maxTotalProgress) { |
| long currentKBytes = curTotalProgress / 1024; |
| long totalKBytes = maxTotalProgress / 1024; |
| tableItem.setText (1, baseString + " (" + currentKBytes + "/" + totalKBytes + ")"); |
| table.getColumn (1).pack (); |
| } |
| public void init (nsIURI source, nsIURI target, String displayName, nsIMIMEInfo MIMEInfo, double startTime, nsILocalFile tempFile, final nsICancelable cancelable) { |
| tableItem = new TableItem (table, SWT.NONE); |
| button = new Button (table, SWT.PUSH); |
| button.setText ("Cancel"); |
| button.pack (); |
| button.addListener (SWT.Selection, new Listener () { |
| @Override |
| public void handleEvent (Event event) { |
| cancelable.cancel (Mozilla.NS_ERROR_ABORT); |
| removeFromTable (); |
| } |
| }); |
| TableEditor editor = new TableEditor (table); |
| editor.setEditor (button, tableItem, 0); |
| editor.minimumWidth = button.computeSize (SWT.DEFAULT, SWT.DEFAULT).x; |
| baseString = "Downloading to " + target.getPath (); |
| tableItem.setText (1, baseString); |
| if (table.getItemCount () == 1) { |
| ((GridData)table.getLayoutData ()).exclude = false; /* show the table */ |
| table.getColumn (0).setWidth (editor.minimumWidth); |
| } |
| table.getColumn (1).pack (); |
| table.getShell ().layout (); |
| } |
| public void onStatusChange (nsIWebProgress webProgress, nsIRequest request, long status, String message) {} |
| public void onSecurityChange (nsIWebProgress webProgress, nsIRequest request, long state) {} |
| public void onProgressChange (nsIWebProgress webProgress, nsIRequest request, int curSelfProgress, int maxSelfProgress, int curTotalProgress, int maxTotalProgress) {} |
| public void onLocationChange (nsIWebProgress webProgress, nsIRequest request, nsIURI location) {} |
| |
| /* the following are not part of the nsITransfer interface but are here for the snippet's convenience */ |
| Button button; |
| TableItem tableItem; |
| String baseString; |
| |
| void removeFromTable () { |
| tableItem.dispose (); |
| button.dispose (); |
| if (table.getItemCount () == 0) { |
| ((GridData)table.getLayoutData ()).exclude = true; /* hide the table */ |
| } |
| table.getColumn (1).pack (); |
| table.getShell ().layout (); |
| } |
| }; |
| } |
| } |