/// <summary>
/// This is called when the Title dependency property changes in the Window.
/// </summary>
internal override void UpdateTitle(string titleStr)
{
IBrowserCallbackServices ibcs = Browser;
if (ibcs != null) // null on shutdown
{
string title = PruneTitleString(titleStr);
// It's not the end of the world if this fails.
// VS's browser in particular returns RPC_E_CALL_REJECTED.
// Not sure of other exceptions that might be thrown here,
// so keeping this scoped to what's been reported.
const int RPC_E_CALL_REJECTED = unchecked ((int)0x80010001);
try
{
// SHOULD NOT CALL BASE; BASE IMPLEMENTS TEXT PROPERTY ON WINDOW
BrowserInteropHelper.HostBrowser.SetTitle(title);
}
catch (COMException e)
{
if (e.ErrorCode != RPC_E_CALL_REJECTED)
{
throw;
}
}
}
}
internal static LaunchResult SafeLaunchBrowserOnlyIfPossible(Uri originatingUri, Uri destinationUri, string targetName, bool fIsTopLevel)
{
LaunchResult launchResult = LaunchResult.NotLaunched;
bool flag = destinationUri.Scheme == Uri.UriSchemeHttp || destinationUri.Scheme == Uri.UriSchemeHttps || destinationUri.IsFile;
bool flag2 = string.Compare(destinationUri.Scheme, Uri.UriSchemeMailto, StringComparison.OrdinalIgnoreCase) == 0;
if (!BrowserInteropHelper.IsInitialViewerNavigation && SecurityHelper.CallerHasUserInitiatedNavigationPermission() && ((fIsTopLevel && flag) || flag2))
{
if (flag)
{
IBrowserCallbackServices browserCallbackServices = (Application.Current != null) ? Application.Current.BrowserCallbackServices : null;
if (browserCallbackServices != null)
{
launchResult = AppSecurityManager.CanNavigateToUrlWithZoneCheck(originatingUri, destinationUri);
if (launchResult == LaunchResult.Launched)
{
browserCallbackServices.DelegateNavigation(BindUriHelper.UriToString(destinationUri), targetName, AppSecurityManager.GetHeaders(destinationUri));
launchResult = LaunchResult.Launched;
}
}
}
else if (flag2)
{
UnsafeNativeMethods.ShellExecute(new HandleRef(null, IntPtr.Zero), null, BindUriHelper.UriToString(destinationUri), null, null, 0);
launchResult = LaunchResult.Launched;
}
}
return(launchResult);
}
internal static void UnsafeLaunchBrowser(Uri uri, string targetFrame = null)
{
if (Application.Current != null && Application.Current.CheckAccess())
{
IBrowserCallbackServices browserCallbackServices = Application.Current.BrowserCallbackServices;
if (browserCallbackServices != null)
{
browserCallbackServices.DelegateNavigation(BindUriHelper.UriToString(uri), targetFrame, AppSecurityManager.GetHeaders(uri));
return;
}
}
AppSecurityManager.ShellExecuteDefaultBrowser(uri);
}
private void HandleBackForwardStateChange(object sender, EventArgs args)
{
if (!this.HasTravelLogIntegration)
{
return;
}
IBrowserCallbackServices browser = RootBrowserWindow.Browser;
if (browser != null)
{
browser.UpdateBackForwardState();
}
}
/// <summary>
/// We are not using the CanGoBack/CanGoForward property change since that is fired only
/// if the value changes eg. if we had 3 entries in the backstack, then a back navigation
/// won't fire this since the value is still 'true' and has not changed.
/// What we need is the UpdateView() notification or the BackForwardState change
/// notification which is fired from UpdateView() of the Journal.
/// Trying to hook the event will create the journal even if there was no navigation
/// so just using an virtual override to do the work.
/// </summary>
private void HandleBackForwardStateChange(object sender, EventArgs args)
{
//Nothing to do for downlevel platform
if (!HasTravelLogIntegration)
{
return;
}
IBrowserCallbackServices ibcs = Browser;
if (ibcs != null)
{
ibcs.UpdateBackForwardState();
}
}
internal XappLauncherApp(Uri deploymentManifest, string applicationId, IBrowserCallbackServices browser, DocObjHost.ApplicationRunnerCallback applicationRunner, INativeProgressPage nativeProgressPage, string progressPageAssembly, string progressPageClass, string errorPageAssembly, string errorPageClass)
{
this._deploymentManifest = deploymentManifest;
this._applicationId = applicationId;
this._browser = browser;
this._applicationRunnerCallback = applicationRunner;
this._fwlinkUri = null;
this._requiredCLRVersion = null;
base.Startup += this.XappLauncherApp_Startup;
base.Exit += this.XappLauncherApp_Exit;
base.Navigated += this.XappLauncherApp_Navigated;
this._nativeProgressPage = nativeProgressPage;
this._progressPageAssembly = progressPageAssembly;
this._progressPageClass = progressPageClass;
this._errorPageAssembly = errorPageAssembly;
this._errorPageClass = errorPageClass;
}
internal static void UnsafeLaunchBrowser(Uri uri, string targetFrame = null)
{
// This'll likely go into SafeLaunchBrowser() function.
if (Application.Current != null && Application.Current.CheckAccess())
{
IBrowserCallbackServices ibcs = Application.Current.BrowserCallbackServices;
if (ibcs != null)
{
// Browser app.
//
ibcs.DelegateNavigation(BindUriHelper.UriToString(uri), targetFrame, GetHeaders(uri));
return;
}
}
ShellExecuteDefaultBrowser(uri);
}
// This invokes the browser unsafely.
// Whoever is calling this function should do the right demands.
internal static void UnsafeLaunchBrowser(Uri uri, string targetFrame = null)
{
#if NETFX
// This'll likely go into SafeLaunchBrowser() function.
if (Application.Current != null && Application.Current.CheckAccess())
{
IBrowserCallbackServices ibcs = Application.Current.BrowserCallbackServices;
if (ibcs != null)
{
// Browser app.
// TODO: See if this is the right behavior when clicking on a link in
// a secondary window in a multi-window browser app - PS # 840726
ibcs.DelegateNavigation(BindUriHelper.UriToString(uri), targetFrame, GetHeaders(uri));
return;
}
}
#endif
ShellExecuteDefaultBrowser(uri);
}
internal XappLauncherApp(Uri deploymentManifest, string applicationId,
IBrowserCallbackServices browser, DocObjHost.ApplicationRunnerCallback applicationRunner,
INativeProgressPage nativeProgressPage,
string progressPageAssembly, string progressPageClass, string errorPageAssembly, string errorPageClass)
{
_deploymentManifest = deploymentManifest;
_applicationId = applicationId;
_browser = browser;
_applicationRunnerCallback = applicationRunner;
_fwlinkUri = null;
this.Startup += new StartupEventHandler(XappLauncherApp_Startup);
this.Exit += new ExitEventHandler(XappLauncherApp_Exit);
this.Navigated += new NavigatedEventHandler(XappLauncherApp_Navigated);
_nativeProgressPage = nativeProgressPage;
_progressPageAssembly = progressPageAssembly;
_progressPageClass = progressPageClass;
_errorPageAssembly = errorPageAssembly;
_errorPageClass = errorPageClass;
}
internal override void UpdateTitle(string titleStr)
{
IBrowserCallbackServices browser = RootBrowserWindow.Browser;
if (browser != null)
{
string title = this.PruneTitleString(titleStr);
try
{
BrowserInteropHelper.HostBrowser.SetTitle(title);
}
catch (COMException ex)
{
if (ex.ErrorCode != -2147418111)
{
throw;
}
}
}
}
internal void Cleanup()
{
if (Application.Current != null)
{
IBrowserCallbackServices browserCallbackServices = Application.Current.BrowserCallbackServices;
if (browserCallbackServices != null)
{
Application.Current.Dispatcher.BeginInvoke(DispatcherPriority.Normal, new DispatcherOperationCallback(this.ReleaseBrowserCallback), browserCallbackServices);
}
}
this.ServiceProvider = null;
this.ClearRootBrowserWindow();
if (this._storageRoot != null && this._storageRoot.Value != null)
{
this._storageRoot.Value.Close();
}
if (this._document.Value is PackageDocument)
{
PreloadedPackages.RemovePackage(PackUriHelper.GetPackageUri(PackUriHelper.Create(this.Uri)));
((PackageDocument)this._document.Value).Dispose();
this._document.Value = null;
}
if (this._mimeType.Value == MimeType.Document)
{
DocumentManager.CleanUp();
}
if (this._packageStream.Value != null)
{
this._packageStream.Value.Close();
}
if (this._unmanagedStream.Value != null)
{
Marshal.ReleaseComObject(this._unmanagedStream.Value);
this._unmanagedStream = new SecurityCriticalData <object>(null);
}
}
internal static LaunchResult SafeLaunchBrowserOnlyIfPossible(Uri originatingUri, Uri destinationUri, string targetName, bool fIsTopLevel)
{
LaunchResult launched = LaunchResult.NotLaunched;
bool isKnownScheme = (Object.ReferenceEquals(destinationUri.Scheme, Uri.UriSchemeHttp)) ||
(Object.ReferenceEquals(destinationUri.Scheme, Uri.UriSchemeHttps)) ||
destinationUri.IsFile;
bool fIsMailTo = String.Compare(destinationUri.Scheme, Uri.UriSchemeMailto, StringComparison.OrdinalIgnoreCase) == 0;
// We elevate to navigate the browser iff:
// We are user initiated AND
// Scheme == http/https & topLevel OR scheme == mailto.
//
// For all other cases ( evil protocols etc).
// We will demand.
//
// The check of IsInitialViewerNavigation is necessary because viewer applications will probably
// need to call Navigate on the URI they receive, but we want them to be able to do it in partial trust.
if ((!BrowserInteropHelper.IsInitialViewerNavigation &&
MS.Internal.PresentationFramework.SecurityHelper.CallerHasUserInitiatedNavigationPermission()) &&
((fIsTopLevel && isKnownScheme) || fIsMailTo))
{
if (isKnownScheme)
{
IBrowserCallbackServices ibcs = (Application.Current != null) ? Application.Current.BrowserCallbackServices : null;
if (ibcs != null)
{
launched = CanNavigateToUrlWithZoneCheck(originatingUri, destinationUri);
if (launched == LaunchResult.Launched)
{
// resetting launched to NotLaunched here; if the assert succeeds
// and ibcs.DelegateNavigation does not throw then we will set it to Launched.
launched = LaunchResult.NotLaunched;
// Browser app.
//
ibcs.DelegateNavigation(BindUriHelper.UriToString(destinationUri), targetName, GetHeaders(destinationUri));
launched = LaunchResult.Launched;
}
}
}
else if (fIsMailTo) // unnecessary if - but being paranoid.
{
// Shell-Exec the browser to the mailto url.
// assumed safe - because we're only allowing this for mailto urls.
//
UnsafeNativeMethods.ShellExecute(new HandleRef(null, IntPtr.Zero), /*hwnd*/
null, /*operation*/
BindUriHelper.UriToString(destinationUri), /*file*/
null, /*parameters*/
null, /*directory*/
0); /*nShowCmd*/
launched = LaunchResult.Launched;
}
}
return(launched);
}
internal void Cleanup()
{
if (Application.Current != null)
{
IBrowserCallbackServices bcs = Application.Current.BrowserCallbackServices;
if (bcs != null)
{
Debug.Assert(!Application.IsApplicationObjectShuttingDown);
// Marshal.ReleaseComObject(bcs) has to be called so that the refcount of the
// native objects goes to zero for clean shutdown. But it should not be called
// right away, because there may still be DispatcherOperations in the queue
// that will attempt to use IBCS, especially during downloading/activation.
// Last, it can't be called with prioroty lower than Normal, because that's
// the priority of Applicatoin.ShudownCallback(), which shuts down the
// Dispatcher.
Application.Current.Dispatcher.BeginInvoke(
DispatcherPriority.Normal, new DispatcherOperationCallback(ReleaseBrowserCallback), bcs);
}
}
ServiceProvider = null;
ClearRootBrowserWindow();
if (_storageRoot != null && _storageRoot.Value != null)
{
_storageRoot.Value.Close();
}
// Due to the dependecies the following objects have to be released
// in the following order: _document, DocumentManager,
// _packageStream, _unmanagedStream.
if (_document.Value is PackageDocument)
{
// We are about to close the package ad remove it from the Preloaded Packages Store.
// Let's make sure that the data structures are consistent. The package that we hold is
// actually in the store under the URI that we think it should be using
Debug.Assert(((PackageDocument)_document.Value).Package ==
PreloadedPackages.GetPackage(PackUriHelper.GetPackageUri(PackUriHelper.Create(Uri))));
// We need to remove the Package from the PreloadedPackage storage,
// so that potential future requests would fail in a way of returning a null (resource not found)
// rather then return a Package or stream that is already Closed
PreloadedPackages.RemovePackage(PackUriHelper.GetPackageUri(PackUriHelper.Create(Uri)));
((PackageDocument)_document.Value).Dispose();
_document.Value = null;
}
if (_mimeType.Value == MimeType.Document)
{
DocumentManager.CleanUp();
}
if (_packageStream.Value != null)
{
_packageStream.Value.Close();
}
if (_unmanagedStream.Value != null)
{
Marshal.ReleaseComObject(_unmanagedStream.Value);
_unmanagedStream = new SecurityCriticalData <object>(null);
}
}
void IBrowserHostServices.SetBrowserCallback(object browserCallbackServices)
{
Invariant.Assert(browserCallbackServices != null, "Browser interop interface passed in should not be null");
_browserCallbackServices = (IBrowserCallbackServices)browserCallbackServices;
}
private void Cleanup(int exitCode)
{
//No error => don't cleanup
if (exitCode == 0)
return;
// You need to explicitly release the COM object. The RCW doesn't
// seem to get garbage collected automatically.
//
// We don't want to call release multiple times. So call either
// on the App or on the Docobj since the ServiceProvider setter
// release the _browserCallbackServices com object
if (_appProxyInternal != null)
{
_appProxyInternal.Cleanup();
}
else if (_browserCallbackServices != null)
{
Marshal.ReleaseComObject(_browserCallbackServices);
_browserCallbackServices = null;
}
}
