| /******************************************************************************* |
| * Copyright (c) 2005, 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 java.util.*; |
| |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.browser.Browser; |
| import org.eclipse.swt.internal.*; |
| import org.eclipse.swt.internal.mozilla.*; |
| import org.eclipse.swt.internal.win32.*; |
| import org.eclipse.swt.widgets.*; |
| |
| class MozillaDelegate { |
| Browser browser; |
| Vector childWindows = new Vector (9); |
| static long /*int*/ MozillaProc; |
| static Callback SubclassProc; |
| static Callback SubclassProc_UpdateUIState; |
| |
| MozillaDelegate (Browser browser) { |
| super (); |
| this.browser = browser; |
| } |
| |
| static Browser findBrowser (long /*int*/ handle) { |
| Display display = Display.getCurrent (); |
| return (Browser)display.findWidget (handle); |
| } |
| |
| static String getCacheParentPath () { |
| /* Use the character encoding for the default locale */ |
| TCHAR buffer = new TCHAR (0, OS.MAX_PATH); |
| if (OS.SHGetFolderPath (0, OS.CSIDL_LOCAL_APPDATA, 0, OS.SHGFP_TYPE_CURRENT, buffer) == OS.S_OK) { |
| return buffer.toString (0, buffer.strlen ()) + Mozilla.SEPARATOR_OS + "eclipse"; //$NON-NLS-1$ |
| } |
| return getProfilePath (); |
| } |
| |
| static String[] getJSLibraryNames () { |
| return new String[] {"mozjs.dll", "xul.dll"}; //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| |
| static String getJSLibraryName_Pre4 () { |
| return "js3250.dll"; //$NON-NLS-1$ |
| } |
| |
| static String getLibraryName () { |
| return "xpcom.dll"; //$NON-NLS-1$ |
| } |
| |
| static String getProfilePath () { |
| String baseDir; |
| /* Use the character encoding for the default locale */ |
| TCHAR buffer = new TCHAR (0, OS.MAX_PATH); |
| if (OS.SHGetFolderPath (0, OS.CSIDL_APPDATA, 0, OS.SHGFP_TYPE_CURRENT, buffer) == OS.S_OK) { |
| baseDir = buffer.toString (0, buffer.strlen ()); |
| } else { |
| baseDir = System.getProperty("user.home"); //$NON-NLS-1$ |
| } |
| return baseDir + Mozilla.SEPARATOR_OS + "Mozilla" + Mozilla.SEPARATOR_OS + "eclipse"; //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| |
| static String getSWTInitLibraryName () { |
| return "swt-xulrunner"; //$NON-NLS-1$ |
| } |
| |
| static void loadAdditionalLibraries (String mozillaPath) { |
| } |
| |
| static char[] mbcsToWcs (String codePage, byte[] buffer) { |
| char[] chars = new char[buffer.length]; |
| int charCount = OS.MultiByteToWideChar (OS.CP_ACP, OS.MB_PRECOMPOSED, buffer, buffer.length, chars, chars.length); |
| if (charCount == chars.length) return chars; |
| char[] result = new char[charCount]; |
| System.arraycopy (chars, 0, result, 0, charCount); |
| return result; |
| } |
| |
| static boolean needsSpinup () { |
| return false; |
| } |
| |
| static byte[] wcsToMbcs (String codePage, String string, boolean terminate) { |
| int byteCount; |
| char[] chars = new char[string.length()]; |
| string.getChars (0, chars.length, chars, 0); |
| byte[] bytes = new byte[byteCount = chars.length * 2 + (terminate ? 1 : 0)]; |
| byteCount = OS.WideCharToMultiByte (OS.CP_ACP, 0, chars, chars.length, bytes, byteCount, null, null); |
| if (terminate) { |
| byteCount++; |
| } else { |
| if (bytes.length != byteCount) { |
| byte[] result = new byte[byteCount]; |
| System.arraycopy (bytes, 0, result, 0, byteCount); |
| bytes = result; |
| } |
| } |
| return bytes; |
| } |
| |
| static long /*int*/ windowProc (long /*int*/ hwnd, long /*int*/ msg, long /*int*/ wParam, long /*int*/ lParam) { |
| switch ((int)/*64*/msg) { |
| case OS.WM_UPDATEUISTATE: |
| /* |
| * In XULRunner 17, calling the default windowProc for WM_UPDATEUISTATE message |
| * terminates the program. Workaround is to prevent the call to default windowProc. |
| */ |
| return 0; |
| case OS.WM_ERASEBKGND: |
| RECT rect = new RECT (); |
| OS.GetClientRect (hwnd, rect); |
| OS.FillRect (wParam, rect, OS.GetSysColorBrush (OS.COLOR_WINDOW)); |
| break; |
| } |
| return OS.CallWindowProc (MozillaProc, hwnd, (int)/*64*/msg, wParam, lParam); |
| } |
| |
| static long /*int*/ windowProc1 (long /*int*/ hwnd, long /*int*/ msg, long /*int*/ wParam, long /*int*/ lParam) { |
| switch ((int)/*64*/msg) { |
| case OS.WM_UPDATEUISTATE: |
| /* |
| * In XULRunner 17, calling the default windowProc for WM_UPDATEUISTATE message |
| * terminates the program. Workaround is to prevent the call to default windowProc. |
| */ |
| return 0; |
| } |
| return OS.CallWindowProc (MozillaProc, hwnd, (int)/*64*/msg, wParam, lParam); |
| } |
| |
| void addWindowSubclass () { |
| long /*int*/ hwndChild = OS.GetWindow (browser.handle, OS.GW_CHILD); |
| if (SubclassProc == null) { |
| SubclassProc = new Callback (MozillaDelegate.class, "windowProc", 4); //$NON-NLS-1$ |
| MozillaProc = OS.GetWindowLongPtr (hwndChild, OS.GWL_WNDPROC); |
| } |
| OS.SetWindowLongPtr (hwndChild, OS.GWL_WNDPROC, SubclassProc.getAddress ()); |
| } |
| |
| int createBaseWindow (nsIBaseWindow baseWindow) { |
| return baseWindow.Create (); |
| } |
| |
| long /*int*/ getHandle () { |
| return browser.handle; |
| } |
| |
| long /*int*/ getSiteWindow () { |
| /* |
| * As of XULRunner 4, XULRunner's printing facilities on Windows destroy |
| * the HWND that is returned from here once the print dialog is dismissed |
| * (originating bug: https://bugzilla.mozilla.org/show_bug.cgi?id=588735 ). |
| * For this scenario it is now expected that the handle that is returned |
| * here is a child of the browser handle, not the browser handle itself. |
| * |
| * The other scenario that requests this handle is the Mozilla.getBrowser() |
| * implementation. This method's GetSiteWindow() invocation is surrounded |
| * by boolean flags to help differentiate it from the printing scenario, |
| * since Mozilla.getBrowser() does not destroy the handle it receives back. |
| * |
| * All children that are created here are stored and then destroyed once |
| * the current page is left. This is guard code that should only be needed |
| * if Mozilla.getSiteWindow() is ever invoked by a path other than one of |
| * the two described above. |
| */ |
| if (Mozilla.IsPre_4 || Mozilla.IsGettingSiteWindow) { |
| return getHandle (); |
| } |
| |
| Composite child = new Composite (browser, SWT.NONE); |
| childWindows.addElement (child); |
| return child.handle; |
| } |
| |
| void handleFocus () { |
| } |
| |
| void handleMouseDown () { |
| } |
| |
| boolean hookEnterExit () { |
| return true; |
| } |
| |
| void init () { |
| if (!Mozilla.IsPre_4) { |
| /* |
| * In XULRunner versions > 4, sending WM_GETDLGCODE to a WM_KEYDOWN's MSG hwnd answers 0 |
| * instead of the expected DLGC_WANTALLKEYS. This causes the default traversal framework |
| * perform traversals outside of the Browser when it should not. Hook a Traverse listener |
| * to work around these problems. |
| */ |
| browser.addListener (SWT.Traverse, new Listener () { |
| public void handleEvent (Event event) { |
| switch (event.detail) { |
| case SWT.TRAVERSE_RETURN: |
| case SWT.TRAVERSE_ESCAPE: { |
| /* always veto the traversal */ |
| event.doit = false; |
| break; |
| } |
| case SWT.TRAVERSE_TAB_NEXT: |
| case SWT.TRAVERSE_TAB_PREVIOUS: { |
| /* veto the traversal whenever an element in the browser has focus */ |
| long /*int*/[] result = new long /*int*/[1]; |
| int rc = XPCOM.NS_GetServiceManager (result); |
| if (rc != XPCOM.NS_OK) Mozilla.error (rc); |
| if (result[0] == 0) Mozilla.error (XPCOM.NS_NOINTERFACE); |
| nsIServiceManager serviceManager = new nsIServiceManager (result[0]); |
| result[0] = 0; |
| byte[] aContractID = MozillaDelegate.wcsToMbcs (null, XPCOM.NS_FOCUSMANAGER_CONTRACTID, true); |
| rc = serviceManager.GetServiceByContractID (aContractID, nsIFocusManager.NS_IFOCUSMANAGER_10_IID, result); |
| serviceManager.Release (); |
| |
| if (rc == XPCOM.NS_OK && result[0] != 0) { |
| nsIFocusManager focusManager = new nsIFocusManager (result[0]); |
| result[0] = 0; |
| rc = focusManager.GetFocusedElement (result); |
| focusManager.Release (); |
| event.doit = result[0] == 0; |
| if (rc == XPCOM.NS_OK && result[0] != 0) { |
| new nsISupports (result[0]).Release (); |
| } |
| } |
| break; |
| } |
| } |
| } |
| }); |
| |
| /* children created in getSiteHandle() should be destroyed whenever a page is left */ |
| browser.addLocationListener (new LocationAdapter () { |
| public void changing (LocationEvent event) { |
| Enumeration enumeration = childWindows.elements (); |
| while (enumeration.hasMoreElements ()) { |
| ((Composite)enumeration.nextElement ()).dispose (); |
| } |
| childWindows.clear (); |
| } |
| }); |
| } |
| } |
| |
| void onDispose (long /*int*/ embedHandle) { |
| if (SubclassProc == null && SubclassProc_UpdateUIState == null) return; |
| long /*int*/ hwndChild = OS.GetWindow (browser.handle, OS.GW_CHILD); |
| OS.SetWindowLongPtr (hwndChild, OS.GWL_WNDPROC, MozillaProc); |
| childWindows = null; |
| browser = null; |
| } |
| |
| void removeWindowSubclass () { |
| long /*int*/ hwndChild = OS.GetWindow (browser.handle, OS.GW_CHILD); |
| if (Mozilla.IsPre_17) { |
| if (SubclassProc != null) { |
| OS.SetWindowLongPtr (hwndChild, OS.GWL_WNDPROC, MozillaProc); |
| } |
| } else { |
| if (SubclassProc_UpdateUIState == null) { |
| SubclassProc_UpdateUIState = new Callback (MozillaDelegate.class, "windowProc1", 4); //$NON-NLS-1$ |
| } |
| OS.SetWindowLongPtr (hwndChild, OS.GWL_WNDPROC, SubclassProc_UpdateUIState.getAddress ()); |
| } |
| } |
| |
| boolean sendTraverse () { |
| return false; |
| } |
| |
| void setSize (long /*int*/ embedHandle, int width, int height) { |
| } |
| } |