void OnPropertyChanged (IntPtr dependency_object, IntPtr propertyChangeArgs, ref MoonError error, IntPtr unused)
{
var l = Listener;
if (l == null)
Detach ();
else
l.OnPropertyChanged (dependency_object, propertyChangeArgs, ref error, unused);
}
void IListenPropertyChanged.OnPropertyChanged (IntPtr dependency_object, IntPtr propertyChangeArgs, ref MoonError error, IntPtr unused)
{
try {
// Type converting doesn't happen for TemplateBindings
Updating = true;
try {
Target.SetValue (TargetProperty, GetValue (null));
} catch {
Target.SetValue (TargetProperty, TargetProperty.GetDefaultValue (Target));
}
}
catch (Exception ex) {
error = new MoonError (ex);
} finally {
Updating = false;
}
}
private void PropertyChanged (IntPtr dependency_object, IntPtr propertyChangeArgs, ref MoonError error, IntPtr unused)
{
try {
// Type converting doesn't happen for TemplateBindings
Updating = true;
try {
Target.SetValueImpl (TargetProperty, Value.ToObject (SourceProperty.PropertyType,
NativeMethods.property_changed_event_args_get_new_value (propertyChangeArgs)));
} catch {
Target.SetValue (TargetProperty, TargetProperty.GetDefaultValue (Target));
}
Updating = false;
}
catch (Exception ex) {
error = new MoonError (ex);
}
}
/*
*
* Don't add any P/Invokes here.
*
* Add annotations (@GeneratePInvoke) to your C/C++ methods to generate the P/Invokes.
* If the generator gets parameters wrong, you can add a @MarshalAs=<whatever> to override.
*
*/
internal static Exception CreateManagedException (MoonError err)
{
string msg = err.Message;
Exception ex = null;
if (err.GCHandle.IsAllocated) {
// We need to get this before calling Dispose.
ex = err.GCHandle.Target as Exception;
}
err.Dispose ();
switch (err.Number) {
case 1:
default:
return new Exception (msg);
case 2:
return new ArgumentException (msg);
case 3:
return new ArgumentNullException (msg);
case 4:
return new ArgumentOutOfRangeException (msg);
case 5:
return new InvalidOperationException (msg);
case 6:
return new XamlParseException (err.LineNumber, err.CharPosition, msg);
case 7:
return new UnauthorizedAccessException (msg);
case 8:
return new ExecutionEngineException (msg);
case 9:
if (ex != null)
return ex;
return new Exception (msg);
case 10:
return new ListenFailedException (msg);
case 11:
return new SendFailedException (msg);
case 12:
return new NotImplementedException (msg);
case 13:
return new SecurityException (msg);
case 14:
return new NotSupportedException (msg);
}
}
private static unsafe IntPtr ParseTemplate (Value *context_ptr, string resource_base, IntPtr surface, IntPtr binding_source, string xaml, ref MoonError error)
{
XamlContext context = Value.ToObject (typeof (XamlContext), context_ptr) as XamlContext;
var parser = new XamlParser (context);
var source = NativeDependencyObjectHelper.FromIntPtr (binding_source);
if (source == null) {
error = new MoonError (parser.ParseException ("Attempting to parse a template with an invalid binding source."));
return IntPtr.Zero;
}
FrameworkElement fwe = source as FrameworkElement;
if (fwe == null) {
error = new MoonError (parser.ParseException ("Only FrameworkElements can be used as TemplateBinding sources."));
return IntPtr.Zero;
}
context.IsExpandingTemplate = true;
context.TemplateBindingSource = fwe;
INativeEventObjectWrapper dob = null;
try {
dob = parser.ParseString (xaml) as INativeEventObjectWrapper;
} catch (Exception e) {
error = new MoonError (e);
return IntPtr.Zero;
}
if (dob == null) {
error = new MoonError (parser.ParseException ("Unable to parse template item."));
return IntPtr.Zero;
}
return dob.NativeHandle;
}
void DPChanged (IntPtr dependency_object, IntPtr property_changed_event_args, ref MoonError error, IntPtr closure)
{
try {
UpdateValue ();
if (Next != null)
Next.SetSource (Value);
} catch (Exception ex) {
try {
Console.WriteLine ("Unhandled exception in StandardPropertyPathNode.DBChanged: {0}", ex);
} catch {
// Ignore
}
}
}
static Size InvokeArrangeOverride (IntPtr fwe_ptr, Size finalSize, ref MoonError error)
{
FrameworkElement fe = null;
try {
fe = (FrameworkElement) NativeDependencyObjectHelper.Lookup (fwe_ptr);
return fe.ArrangeOverride (finalSize);
} catch (Exception ex) {
try {
if (fe != null)
LayoutInformation.SetLayoutExceptionElement (Deployment.Current.Dispatcher, fe);
error = new MoonError (ex);
} catch (Exception ex2) {
try {
Console.WriteLine ("Leaked exception: {0}", ex2);
} catch {
// Ignore
}
}
}
return new Size ();
}
private static void UnmanagedPropertyChangedCallbackSafe(IntPtr dependency_object, IntPtr propertyChangeArgs, ref MoonError error, IntPtr unused)
{
try {
try {
UnmanagedPropertyChangedCallback (dependency_object,
NativeMethods.property_changed_event_args_get_property (propertyChangeArgs),
NativeMethods.property_changed_event_args_get_old_value (propertyChangeArgs),
NativeMethods.property_changed_event_args_get_new_value (propertyChangeArgs));
} catch (Exception ex) {
error = new MoonError (ex);
}
} catch (Exception ex) {
try {
Console.WriteLine ("Moonlight: Unhandled exception in DependencyProperty.UnmanagedPropertyChangedCallback: {0}",
ex.Message);
} catch {
}
}
}
void OnNativeMentorDataContextChangedSafe (IntPtr dependency_object, IntPtr propertyChangedEventArgs, ref MoonError error, IntPtr closure)
{
try {
OnNativeMentorDataContextChanged (dependency_object, propertyChangedEventArgs, ref error, closure);
} catch (Exception ex) {
error = new MoonError (ex);
}
}
/*
*
* Don't add any P/Invokes here.
*
* Add annotations (@GeneratePInvoke) to your C/C++ methods to generate the P/Invokes.
* If the generator gets parameters wrong, you can add a @MarshalAs=<whatever> to override.
*
*/
internal static Exception CreateManagedException(MoonError err)
{
string msg = err.Message;
Exception ex = null;
if (err.GCHandle.IsAllocated)
{
// We need to get this before calling Dispose.
ex = err.GCHandle.Target as Exception;
}
err.Dispose();
switch (err.Number)
{
case 1:
default:
return(new Exception(msg));
case 2:
return(new ArgumentException(msg));
case 3:
return(new ArgumentNullException(msg));
case 4:
return(new ArgumentOutOfRangeException(msg));
case 5:
return(new InvalidOperationException(msg));
case 6:
return(new XamlParseException(err.LineNumber, err.CharPosition, msg));
case 7:
return(new UnauthorizedAccessException(msg));
case 8:
return(new ExecutionEngineException(msg));
case 9:
if (ex != null)
{
return(ex);
}
return(new Exception(msg));
case 10:
return(new ListenFailedException(msg));
case 11:
return(new SendFailedException(msg));
case 12:
return(new NotImplementedException(msg));
case 13:
return(new SecurityException(msg));
case 14:
return(new NotSupportedException(msg));
}
}
void DataContextChanged (IntPtr dependency_object, IntPtr propertyChangedEventArgs, ref MoonError error, IntPtr closure)
{
try {
var fe = (FrameworkElement) NativeDependencyObjectHelper.Lookup (dependency_object);
PropertyPathWalker.Update (fe.DataContext);
// OneTime bindings refresh when the datacontext changes. As these bindings do not listen
// for the ValueChanged notifications from the PropertyPathWalker we need to force a refresh
if (Binding.Mode == BindingMode.OneTime)
Refresh ();
} catch (Exception ex) {
try {
error = new MoonError (ex);
} catch {
}
}
}
private unsafe bool cb_add_child (XamlCallbackData *data, Value* parent_parent, bool parent_is_property, string parent_xmlns, Value *parent, IntPtr parent_data, Value* child, IntPtr child_data, ref MoonError error)
{
try {
return AddChild (data, parent_parent, parent_is_property, parent_xmlns, parent, parent_data, child, child_data);
} catch (Exception ex) {
Console.Error.WriteLine (ex);
error = new MoonError (ex);
return false;
}
}
private unsafe bool cb_import_xaml_xmlns (XamlCallbackData *data, string xmlns, ref MoonError error)
{
try {
if (!ValidateXmlns (xmlns))
return false;
Application.ImportXamlNamespace (xmlns);
return true;
} catch (Exception ex) {
Console.WriteLine ("Application::ImportXamlNamespace ({0}) threw an exception: {1}", xmlns, ex);
error = new MoonError (ex);
return false;
}
}
//
// Proxy so that we return bool in case of any failures, instead of
// generating an exception and unwinding the stack.
//
private unsafe bool cb_set_property (XamlCallbackData *data, string xmlns, Value* target, IntPtr target_data, Value* target_parent, string prop_xmlns, string name, Value* value_ptr, IntPtr value_data, ref MoonError error)
{
try {
return SetProperty (data, xmlns, target, target_data, target_parent, prop_xmlns, name, value_ptr, value_data);
} catch (Exception ex) {
try {
Console.Error.WriteLine ("ManagedXamlLoader::SetProperty ({0}, {1}, {2}, {3}, {4}) threw an exception: {5}", (IntPtr) data->top_level, xmlns, (IntPtr)target, name, (IntPtr)value_ptr, ex.Message);
Console.Error.WriteLine (ex);
error = new MoonError (ex);
return false;
}
catch {
return false;
}
}
}
///
///
/// Callbacks invoked by the xaml.cpp C++ parser
///
///
#region Callbacks from xaml.cpp
//
// Proxy so that we return IntPtr.Zero in case of any failures, instead of
// genereting an exception and unwinding the stack.
//
private unsafe bool cb_lookup_object (XamlCallbackData *data, Value* parent, string xmlns, string name, bool create, bool is_property, out Value value, ref MoonError error)
{
value = Value.Empty;
try {
return LookupObject (data->top_level, parent, xmlns, name, create, is_property, out value);
} catch (Exception ex) {
NativeMethods.value_free_value (ref value);
value = Value.Empty;
Console.Error.WriteLine ("ManagedXamlLoader::LookupObject ({0}, {1}, {2}, {3}) failed: {3} ({4}).", (IntPtr) data->top_level, xmlns, create, name, ex.Message, ex.GetType ().FullName);
Console.WriteLine (ex);
error = new MoonError (ex);
return false;
}
}
private static unsafe IntPtr ParseTemplate (Value *context_ptr, IntPtr resource_base, IntPtr surface, IntPtr binding_source, string xaml, ref MoonError error)
{
XamlContext context = Value.ToObject (typeof (XamlContext), context_ptr) as XamlContext;
var parser = new XamlParser (context) {
ResourceBase = UriHelper.FromNativeUri (resource_base),
};
FrameworkElement fwe = null;
var source = NativeDependencyObjectHelper.FromIntPtr (binding_source);
if (source != null) {
fwe = source as FrameworkElement;
if (fwe == null) {
error = new MoonError (parser.ParseException ("Only FrameworkElements can be used as TemplateBinding sources."));
return IntPtr.Zero;
}
}
Log ("222222 ParseTemplateElement {0}", source);
Log ("{0}", xaml);
context.IsExpandingTemplate = true;
context.TemplateOwner = source as DependencyObject;
context.TemplateBindingSource = fwe;
parser.HydrateObject = context.Template;
INativeEventObjectWrapper dob = null;
try {
FrameworkTemplate template = parser.Parse (context.Node) as FrameworkTemplate;
if (template != null) {
dob = template.Content as INativeEventObjectWrapper;
template.Content = null;
}
// No errors, but the template was just empty.
if (dob == null)
return IntPtr.Zero;
} catch (Exception e) {
error = new MoonError (e);
return IntPtr.Zero;
} finally {
context.IsExpandingTemplate = false;
context.TemplateOwner = null;
context.TemplateBindingSource = null;
}
// XamlParser needs to ref its return value otherwise we can end up returning a an object to native
// code with a refcount of '1' and it could then get GC'ed before we use it.
Mono.NativeMethods.event_object_ref (dob.NativeHandle);
return dob.NativeHandle;
}
void OnNativeMentorDataContextChanged (IntPtr dependency_object, IntPtr propertyChangedEventArgs, ref MoonError error, IntPtr closure)
{
try {
MentorDataContextChanged ();
} catch (Exception ex) {
try {
Console.WriteLine ("Moonlight: Unhandled exception in BindingExpressionBase.OnNativeMentorDataContextChanged: {0}", ex);
} catch {
// Ignore
}
}
}
extern static IntPtr dependency_object_get_value_with_error (IntPtr dep_ob, IntPtr dp, out MoonError error);
private Size InvokeArrangeOverride (Size finalSize, ref MoonError error)
{
try {
return ArrangeOverride (finalSize);
} catch (Exception ex) {
try {
LayoutInformation.SetLayoutExceptionElement (Dispatcher, this);
error = new MoonError (ex);
} catch (Exception ex2) {
try {
Console.WriteLine ("Leaked exception: {0}", ex2);
} catch {
// Ignore
}
}
}
return new Size ();
}
internal ExceptionRoutedEventArgs (MoonError err)
{
ErrorException = NativeMethods.CreateManagedException (err);
}
extern static IntPtr dependency_object_get_value_with_error(IntPtr dep_ob, IntPtr dp, out MoonError error);
static void InvokePropertyChangeHandler (int token, IntPtr sender, IntPtr args, ref MoonError error, IntPtr closure)
{
try {
var o = (DependencyObject) NativeDependencyObjectHelper.Lookup (sender);
if (o != null) {
for (int i = 0; i < o.propertyChangedHandlers.Count; i ++) {
if (o.propertyChangedHandlers [i].Key == token) {
o.propertyChangedHandlers [i].Value (sender, args, ref error, closure);
break;
}
}
}
} catch (Exception ex) {
try {
Console.WriteLine ("Unhandled exception in DependencyObject.PropertyChangeHandler_cb: {0}", ex);
} catch {
}
}
}
void ViewChanged (IntPtr dependency_object, IntPtr propertyChangedEventArgs, ref MoonError error, IntPtr closure)
{
var oldValue = Mono.Value.ToObject (null, NativeMethods.property_changed_event_args_get_old_value (propertyChangedEventArgs));
var newValue = Mono.Value.ToObject (null, NativeMethods.property_changed_event_args_get_new_value (propertyChangedEventArgs));
DisconnectViewHandlers ((ICollectionView) oldValue);
ConnectViewHandlers ((ICollectionView) newValue);
HandleSourceViewCurrentChanged (this, EventArgs.Empty);
}
private static void CustomUnmanagedPropertyChangedCallbackSafe(IntPtr dependency_object, IntPtr propertyChangeArgs, ref MoonError error, IntPtr unused)
{
DependencyProperty property;
DependencyObject obj;
try {
try {
IntPtr uprop = NativeMethods.property_changed_event_args_get_property (propertyChangeArgs);
if (!properties.TryGetValue (uprop, out property)) {
Console.Error.WriteLine ("DependencyProperty.CustomUnmanagedPropertyChangedCallback: Couldn't find the managed DependencyProperty corresponding with native {0}/{1}", uprop, NativeMethods.property_changed_event_args_get_id (propertyChangeArgs));
return;
}
obj = NativeDependencyObjectHelper.Lookup (dependency_object) as DependencyObject;
if (obj == null)
return;
InvokeChangedCallback (obj, property, property.change_cb,
Value.ToObject (property.PropertyType, NativeMethods.property_changed_event_args_get_old_value (propertyChangeArgs)),
Value.ToObject (property.PropertyType, NativeMethods.property_changed_event_args_get_new_value (propertyChangeArgs)));
} catch (Exception ex) {
error = new MoonError (ex);
}
} catch (Exception ex) {
try {
Console.WriteLine ("Moonlight: Unhandled exception in DependencyProperty.UnmanagedPropertyChangedCallback: {0}", ex.Message);
} catch {
}
}
}
