| private ParseException ( string message ) : System.Windows.Markup.XamlParseException | ||
| message | string | |
| return | System.Windows.Markup.XamlParseException | |
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;
}
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;
}
