| /******************************************************************************* |
| * Copyright (c) 2003, 2008 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.C; |
| import org.eclipse.swt.internal.mozilla.*; |
| import org.eclipse.swt.widgets.*; |
| |
| /** |
| * This class implements the nsIHelperAppLauncherDialog interface for mozilla |
| * versions 1.4 - 1.8.x. For mozilla versions >= 1.9 this interface is |
| * implemented by class HelperAppLauncherDialog_1_9. HelperAppLauncherDialogFactory |
| * determines at runtime which of these classes to instantiate. |
| */ |
| class HelperAppLauncherDialog { |
| XPCOMObject supports; |
| XPCOMObject helperAppLauncherDialog; |
| int refCount = 0; |
| |
| HelperAppLauncherDialog () { |
| createCOMInterfaces (); |
| } |
| |
| int AddRef () { |
| refCount++; |
| return refCount; |
| } |
| |
| void createCOMInterfaces () { |
| /* Create each of the interfaces that this object implements */ |
| supports = new XPCOMObject (new int[] {2, 0, 0}) { |
| public long /*int*/ method0 (long /*int*/[] args) {return QueryInterface (args[0], args[1]);} |
| public long /*int*/ method1 (long /*int*/[] args) {return AddRef ();} |
| public long /*int*/ method2 (long /*int*/[] args) {return Release ();} |
| }; |
| |
| helperAppLauncherDialog = new XPCOMObject (new int[] {2, 0, 0, 3, 5}) { |
| public long /*int*/ method0 (long /*int*/[] args) {return QueryInterface (args[0], args[1]);} |
| public long /*int*/ method1 (long /*int*/[] args) {return AddRef ();} |
| public long /*int*/ method2 (long /*int*/[] args) {return Release ();} |
| public long /*int*/ method3 (long /*int*/[] args) {return Show (args[0], args[1], (int)/*64*/args[2]);} |
| public long /*int*/ method4 (long /*int*/[] args) {return PromptForSaveToFile (args[0], args[1], args[2], args[3], args[4]);} |
| }; |
| } |
| |
| void disposeCOMInterfaces () { |
| if (supports != null) { |
| supports.dispose (); |
| supports = null; |
| } |
| if (helperAppLauncherDialog != null) { |
| helperAppLauncherDialog.dispose (); |
| helperAppLauncherDialog = null; |
| } |
| } |
| |
| long /*int*/ getAddress () { |
| return helperAppLauncherDialog.getAddress (); |
| } |
| |
| int QueryInterface (long /*int*/ riid, long /*int*/ ppvObject) { |
| if (riid == 0 || ppvObject == 0) return XPCOM.NS_ERROR_NO_INTERFACE; |
| nsID guid = new nsID (); |
| XPCOM.memmove (guid, riid, nsID.sizeof); |
| |
| if (guid.Equals (nsISupports.NS_ISUPPORTS_IID)) { |
| XPCOM.memmove (ppvObject, new long /*int*/[] {supports.getAddress ()}, C.PTR_SIZEOF); |
| AddRef (); |
| return XPCOM.NS_OK; |
| } |
| if (guid.Equals (XPCOM.NS_IHELPERAPPLAUNCHERDIALOG_IID)) { |
| XPCOM.memmove (ppvObject, new long /*int*/[] {helperAppLauncherDialog.getAddress ()}, C.PTR_SIZEOF); |
| AddRef (); |
| return XPCOM.NS_OK; |
| } |
| |
| XPCOM.memmove (ppvObject, new long /*int*/[] {0}, C.PTR_SIZEOF); |
| return XPCOM.NS_ERROR_NO_INTERFACE; |
| } |
| |
| int Release () { |
| refCount--; |
| /* |
| * Note. This instance lives as long as the download it is binded to. |
| * Its reference count is expected to go down to 0 when the download |
| * has completed or when it has been cancelled. E.g. when the user |
| * cancels the File Dialog, cancels or closes the Download Dialog |
| * and when the Download Dialog goes away after the download is completed. |
| */ |
| if (refCount == 0) disposeCOMInterfaces (); |
| return refCount; |
| } |
| |
| /* nsIHelperAppLauncherDialog */ |
| |
| int Show (long /*int*/ aLauncher, long /*int*/ aContext, int aReason) { |
| /* |
| * The interface for nsIHelperAppLauncher changed as of mozilla 1.8. Query the received |
| * nsIHelperAppLauncher for the new interface, and if it is not found then fall back to |
| * the old interface. |
| */ |
| nsISupports supports = new nsISupports (aLauncher); |
| long /*int*/[] result = new long /*int*/[1]; |
| int rc = supports.QueryInterface (nsIHelperAppLauncher_1_8.NS_IHELPERAPPLAUNCHER_IID, result); |
| if (rc == XPCOM.NS_OK) { /* >= 1.8 */ |
| nsIHelperAppLauncher_1_8 helperAppLauncher = new nsIHelperAppLauncher_1_8 (aLauncher); |
| rc = helperAppLauncher.SaveToDisk (0, 0); |
| helperAppLauncher.Release (); |
| return rc; |
| } |
| nsIHelperAppLauncher helperAppLauncher = new nsIHelperAppLauncher (aLauncher); /* < 1.8 */ |
| return helperAppLauncher.SaveToDisk (0, 0); |
| } |
| |
| int PromptForSaveToFile (long /*int*/ arg0, long /*int*/ arg1, long /*int*/ arg2, long /*int*/ arg3, long /*int*/ arg4) { |
| long /*int*/ aDefaultFile, aSuggestedFileExtension, _retval; |
| boolean hasLauncher = false; |
| |
| /* |
| * The interface for nsIHelperAppLauncherDialog changed as of mozilla 1.5 when an |
| * extra argument was added to the PromptForSaveToFile method (this resulted in all |
| * subsequent arguments shifting right). The workaround is to provide an XPCOMObject |
| * that fits the newer API, and to use the first argument's type to infer whether |
| * the old or new nsIHelperAppLauncherDialog interface is being used (and by extension |
| * the ordering of the arguments). In mozilla >= 1.5 the first argument is an |
| * nsIHelperAppLauncher. |
| */ |
| /* |
| * The interface for nsIHelperAppLauncher changed as of mozilla 1.8, so the first |
| * argument must be queried for both the old and new nsIHelperAppLauncher interfaces. |
| */ |
| boolean using_1_8 = false; |
| nsISupports support = new nsISupports (arg0); |
| long /*int*/[] result = new long /*int*/[1]; |
| int rc = support.QueryInterface (nsIHelperAppLauncher_1_8.NS_IHELPERAPPLAUNCHER_IID, result); |
| if (rc == XPCOM.NS_OK) { |
| using_1_8 = true; |
| hasLauncher = true; |
| new nsISupports (result[0]).Release (); |
| } else { |
| result[0] = 0; |
| rc = support.QueryInterface (nsIHelperAppLauncher.NS_IHELPERAPPLAUNCHER_IID, result); |
| if (rc == XPCOM.NS_OK) { |
| hasLauncher = true; |
| new nsISupports (result[0]).Release (); |
| } |
| } |
| result[0] = 0; |
| |
| if (hasLauncher) { /* >= 1.5 */ |
| aDefaultFile = arg2; |
| aSuggestedFileExtension = arg3; |
| _retval = arg4; |
| } else { /* 1.4 */ |
| aDefaultFile = arg1; |
| aSuggestedFileExtension = arg2; |
| _retval = arg3; |
| } |
| |
| int length = XPCOM.strlen_PRUnichar (aDefaultFile); |
| char[] dest = new char[length]; |
| XPCOM.memmove (dest, aDefaultFile, length * 2); |
| String defaultFile = new String (dest); |
| |
| length = XPCOM.strlen_PRUnichar (aSuggestedFileExtension); |
| dest = new char[length]; |
| XPCOM.memmove (dest, aSuggestedFileExtension, length * 2); |
| String suggestedFileExtension = new String (dest); |
| |
| Shell shell = new Shell (); |
| FileDialog fileDialog = new FileDialog (shell, SWT.SAVE); |
| fileDialog.setFileName (defaultFile); |
| fileDialog.setFilterExtensions (new String[] {suggestedFileExtension}); |
| String name = fileDialog.open (); |
| shell.close (); |
| if (name == null) { |
| if (hasLauncher) { |
| if (using_1_8) { |
| nsIHelperAppLauncher_1_8 launcher = new nsIHelperAppLauncher_1_8 (arg0); |
| rc = launcher.Cancel (XPCOM.NS_BINDING_ABORTED); |
| } else { |
| nsIHelperAppLauncher launcher = new nsIHelperAppLauncher (arg0); |
| rc = launcher.Cancel (); |
| } |
| if (rc != XPCOM.NS_OK) Mozilla.error (rc); |
| return XPCOM.NS_OK; |
| } |
| return XPCOM.NS_ERROR_FAILURE; |
| } |
| nsEmbedString path = new nsEmbedString (name); |
| rc = XPCOM.NS_NewLocalFile (path.getAddress (), 1, result); |
| path.dispose (); |
| if (rc != XPCOM.NS_OK) Mozilla.error (rc); |
| if (result[0] == 0) Mozilla.error (XPCOM.NS_ERROR_NULL_POINTER); |
| /* Our own nsIDownload has been registered during the Browser initialization. It will be invoked by Mozilla. */ |
| XPCOM.memmove (_retval, result, C.PTR_SIZEOF); |
| return XPCOM.NS_OK; |
| } |
| } |