Mercurial > projects > dwt-mac
view dwt/browser/HelperAppLauncherDialog.d @ 124:540fa4e9974a
Ported dwt.internal.theme
author | Jacob Carlborg <doob@me.com> |
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date | Fri, 16 Jan 2009 12:19:08 +0100 |
parents | d8635bb48c7c |
children | 5583f8eeee6c |
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/******************************************************************************* * 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 *******************************************************************************/ module dwt.browser.HelperAppLauncherDialog; import dwt.dwthelper.utils; import dwt.DWT; import dwt.internal.C; import dwt.internal.mozilla.XPCOM; import dwt.internal.mozilla.XPCOMObject; import dwt.internal.mozilla.nsEmbedString; import dwt.internal.mozilla.nsID; import dwt.internal.mozilla.nsIHelperAppLauncher; import dwt.internal.mozilla.nsIHelperAppLauncherDialog; import dwt.internal.mozilla.nsIHelperAppLauncher_1_8; import dwt.internal.mozilla.nsISupports; import dwt.widgets.FileDialog; import dwt.widgets.Shell; /** * 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; this () { 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 int /*long*/ method0 (int /*long*/[] args) {return QueryInterface (args[0], args[1]);} public int /*long*/ method1 (int /*long*/[] args) {return AddRef ();} public int /*long*/ method2 (int /*long*/[] args) {return Release ();} }; helperAppLauncherDialog = new XPCOMObject (new int[] {2, 0, 0, 3, 5}) { public int /*long*/ method0 (int /*long*/[] args) {return QueryInterface (args[0], args[1]);} public int /*long*/ method1 (int /*long*/[] args) {return AddRef ();} public int /*long*/ method2 (int /*long*/[] args) {return Release ();} public int /*long*/ method3 (int /*long*/[] args) {return Show (args[0], args[1], cast(int)/*64*/args[2]);} public int /*long*/ method4 (int /*long*/[] args) {return PromptForSaveToFile (args[0], args[1], args[2], args[3], args[4]);} }; } void disposeCOMInterfaces () { if (supports !is null) { supports.dispose (); supports = null; } if (helperAppLauncherDialog !is null) { helperAppLauncherDialog.dispose (); helperAppLauncherDialog = null; } } int /*long*/ getAddress () { return helperAppLauncherDialog.getAddress (); } int QueryInterface (int /*long*/ riid, int /*long*/ ppvObject) { if (riid is 0 || ppvObject is 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 int /*long*/[] {supports.getAddress ()}, C.PTR_SIZEOF); AddRef (); return XPCOM.NS_OK; } if (guid.Equals (nsIHelperAppLauncherDialog.NS_IHELPERAPPLAUNCHERDIALOG_IID)) { XPCOM.memmove (ppvObject, new int /*long*/[] {helperAppLauncherDialog.getAddress ()}, C.PTR_SIZEOF); AddRef (); return XPCOM.NS_OK; } XPCOM.memmove (ppvObject, new int /*long*/[] {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 is 0) disposeCOMInterfaces (); return refCount; } /* nsIHelperAppLauncherDialog */ int Show (int /*long*/ aLauncher, int /*long*/ 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); int /*long*/[] result = new int /*long*/[1]; int rc = supports.QueryInterface (nsIHelperAppLauncher_1_8.NS_IHELPERAPPLAUNCHER_IID, result); if (rc is 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 (int /*long*/ arg0, int /*long*/ arg1, int /*long*/ arg2, int /*long*/ arg3, int /*long*/ arg4) { int /*long*/ aDefaultFile, aSuggestedFileExtension, _retval; bool 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. */ bool using_1_8 = false; nsISupports support = new nsISupports (arg0); int /*long*/[] result = new int /*long*/[1]; int rc = support.QueryInterface (nsIHelperAppLauncher_1_8.NS_IHELPERAPPLAUNCHER_IID, result); if (rc is 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 is 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, DWT.SAVE); fileDialog.setFileName (defaultFile); fileDialog.setFilterExtensions (new String[] {suggestedFileExtension}); String name = fileDialog.open (); shell.close (); if (name is 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 !is 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 !is XPCOM.NS_OK) Mozilla.error (rc); if (result[0] is 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; } }