| /******************************************************************************* |
| * Copyright (c) 2010, 2012 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.browser; |
| |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.internal.*; |
| import org.eclipse.swt.internal.ole.win32.*; |
| import org.eclipse.swt.internal.webkit.*; |
| import org.eclipse.swt.internal.win32.*; |
| import org.eclipse.swt.widgets.*; |
| |
| class WebPolicyDelegate { |
| COMObject iWebPolicyDelegate; |
| int refCount = 0; |
| |
| Browser browser; |
| |
| WebPolicyDelegate (Browser browser) { |
| createCOMInterfaces (); |
| this.browser = browser; |
| } |
| |
| int AddRef () { |
| refCount++; |
| return refCount; |
| } |
| |
| void createCOMInterfaces () { |
| iWebPolicyDelegate = new COMObject (new int[] {2, 0, 0, 5, 5, 5, 3}) { |
| @Override |
| public long /*int*/ method0 (long /*int*/[] args) {return QueryInterface (args[0], args[1]);} |
| @Override |
| public long /*int*/ method1 (long /*int*/[] args) {return AddRef ();} |
| @Override |
| public long /*int*/ method2 (long /*int*/[] args) {return Release ();} |
| @Override |
| public long /*int*/ method3 (long /*int*/[] args) {return decidePolicyForNavigationAction (args[0], args[1], args[2], args[3], args[4]);} |
| @Override |
| public long /*int*/ method4 (long /*int*/[] args) {return decidePolicyForNewWindowAction (args[0], args[1], args[2], args[3], args[4]);} |
| @Override |
| public long /*int*/ method5 (long /*int*/[] args) {return decidePolicyForMIMEType (args[0], args[1], args[2], args[3], args[4]);} |
| @Override |
| public long /*int*/ method6 (long /*int*/[] args) {return unableToImplementPolicyWithError (args[0], args[1], args[2]);} |
| }; |
| } |
| |
| int decidePolicyForMIMEType (long /*int*/ webView, long /*int*/ type, long /*int*/ request, long /*int*/ frame, long /*int*/ listener) { |
| IWebView iwebView = new IWebView (webView); |
| int[] canShow = new int[1]; |
| iwebView.canShowMIMEType (type, canShow); |
| IWebPolicyDecisionListener pdListener = new IWebPolicyDecisionListener (listener); |
| if (canShow[0] != 0) { |
| pdListener.use (); |
| } else { |
| pdListener.download (); |
| } |
| return COM.S_OK; |
| } |
| |
| int decidePolicyForNavigationAction (long /*int*/ webView, long /*int*/ actionInformation, long /*int*/ request, long /*int*/ frame, long /*int*/ listener) { |
| IWebURLRequest iwebUrlRequest = new IWebURLRequest (request); |
| long /*int*/[] result = new long /*int*/[1]; |
| int hr = iwebUrlRequest.URL (result); |
| if (hr != COM.S_OK || result[0] == 0) { |
| return COM.S_OK; |
| } |
| String url = WebKit.extractBSTR (result[0]); |
| COM.SysFreeString (result[0]); |
| IWebPolicyDecisionListener pdListener = new IWebPolicyDecisionListener (listener); |
| WebKit webKit = (WebKit)browser.webBrowser; |
| if (webKit.loadingText) { |
| /* |
| * WebKit is auto-navigating to about:blank in response to a loadHTMLString() |
| * invocation. This navigate should always proceed without sending an event |
| * since it is preceded by an explicit navigate to about:blank in setText(). |
| */ |
| pdListener.use (); |
| return COM.S_OK; |
| } |
| if (url.length () == 0) { |
| pdListener.ignore (); |
| return COM.S_OK; |
| } |
| if (url.startsWith (WebKit.PROTOCOL_FILE) && webKit.getUrl ().startsWith (WebKit.ABOUT_BLANK) && webKit.untrustedText) { |
| /* indicates an attempt to access the local file system from untrusted content */ |
| pdListener.ignore (); |
| return COM.S_OK; |
| } |
| /* |
| * If the URI indicates that the page is being rendered from memory |
| * (via setText()) then set it to about:blank to be consistent with IE. |
| */ |
| if (url.equals (WebKit.URI_FILEROOT)) { |
| url = WebKit.ABOUT_BLANK; |
| } else { |
| int length = WebKit.URI_FILEROOT.length (); |
| if (url.startsWith (WebKit.URI_FILEROOT) && url.charAt (length) == '#') { |
| url = WebKit.ABOUT_BLANK + url.substring (length); |
| } |
| } |
| LocationEvent newEvent = new LocationEvent (browser); |
| newEvent.display = browser.getDisplay (); |
| newEvent.widget = browser; |
| newEvent.location = url; |
| newEvent.doit = true; |
| LocationListener[] locationListeners = webKit.locationListeners; |
| if (locationListeners != null) { |
| for (int i = 0; i < locationListeners.length; i++) { |
| locationListeners[i].changing (newEvent); |
| } |
| } |
| if (newEvent.doit) { |
| if (webKit.jsEnabled != webKit.jsEnabledOnNextPage) { |
| webKit.jsEnabled = webKit.jsEnabledOnNextPage; |
| IWebView view = new IWebView (webView); |
| result[0] = 0; |
| hr = view.preferences (result); |
| if (hr == COM.S_OK && result[0] != 0) { |
| IWebPreferences preferences = new IWebPreferences (result[0]); |
| hr = preferences.setJavaScriptEnabled (webKit.jsEnabled ? 1 : 0); |
| view.setPreferences (preferences.getAddress()); |
| preferences.Release (); |
| } |
| } |
| pdListener.use (); |
| webKit.lastNavigateURL = url; |
| } else { |
| pdListener.ignore (); |
| } |
| return COM.S_OK; |
| } |
| |
| int decidePolicyForNewWindowAction (long /*int*/ webView, long /*int*/ actionInformation, long /*int*/ request, long /*int*/ frameName, long /*int*/ listener) { |
| IWebPolicyDecisionListener pdListener = new IWebPolicyDecisionListener (listener); |
| pdListener.use(); |
| return COM.S_OK; |
| } |
| |
| protected void disposeCOMInterfaces () { |
| if (iWebPolicyDelegate != null) { |
| iWebPolicyDelegate.dispose (); |
| iWebPolicyDelegate = null; |
| } |
| } |
| |
| long /*int*/ getAddress () { |
| return iWebPolicyDelegate.getAddress (); |
| } |
| |
| int QueryInterface (long /*int*/ riid, long /*int*/ ppvObject) { |
| if (riid == 0 || ppvObject == 0) return COM.E_INVALIDARG; |
| GUID guid = new GUID (); |
| COM.MoveMemory (guid, riid, GUID.sizeof); |
| |
| if (COM.IsEqualGUID (guid, COM.IIDIUnknown)) { |
| COM.MoveMemory (ppvObject, new long /*int*/[] {iWebPolicyDelegate.getAddress ()}, OS.PTR_SIZEOF); |
| new IUnknown (iWebPolicyDelegate.getAddress ()).AddRef (); |
| return COM.S_OK; |
| } |
| if (COM.IsEqualGUID (guid, WebKit_win32.IID_IWebPolicyDelegate)) { |
| COM.MoveMemory (ppvObject, new long /*int*/[] {iWebPolicyDelegate.getAddress ()}, OS.PTR_SIZEOF); |
| new IUnknown (iWebPolicyDelegate.getAddress ()).AddRef (); |
| return COM.S_OK; |
| } |
| |
| COM.MoveMemory (ppvObject, new long /*int*/[] {0}, OS.PTR_SIZEOF); |
| return COM.E_NOINTERFACE; |
| } |
| |
| int Release () { |
| refCount--; |
| if (refCount == 0) { |
| disposeCOMInterfaces (); |
| } |
| return refCount; |
| } |
| |
| int unableToImplementPolicyWithError (long /*int*/ webView, long /*int*/ error, long /*int*/ frame) { |
| if (browser.isDisposed ()) return COM.S_OK; |
| |
| IWebError iweberror = new IWebError (error); |
| String failingURL = null; |
| long /*int*/[] result = new long /*int*/[1]; |
| int hr = iweberror.failingURL (result); |
| if (hr == COM.S_OK && result[0] != 0) { |
| failingURL = WebKit.extractBSTR (result[0]); |
| COM.SysFreeString (result[0]); |
| } |
| result[0] = 0; |
| hr = iweberror.localizedDescription (result); |
| if (hr != COM.S_OK || result[0] == 0) { |
| return COM.S_OK; |
| } |
| String description = WebKit.extractBSTR (result[0]); |
| COM.SysFreeString (result[0]); |
| |
| String message = failingURL != null ? failingURL + "\n\n" : ""; //$NON-NLS-1$ //$NON-NLS-2$ |
| message += Compatibility.getMessage ("SWT_Page_Load_Failed", new Object[] {description}); //$NON-NLS-1$ |
| MessageBox messageBox = new MessageBox (browser.getShell (), SWT.OK | SWT.ICON_ERROR); |
| messageBox.setMessage (message); |
| messageBox.open (); |
| return COM.S_OK; |
| } |
| |
| } |