/// <summary>
/// Invoked by React when the props change for a node with the
/// given tag.
/// </summary>
/// <param name="tag">The view tag.</param>
/// <param name="className">The view class name.</param>
/// <param name="props">The props.</param>
public void UpdateView(int tag, string className, JObject props)
{
var viewManager = _viewManagers.Get(className);
var cssNode = _shadowNodeRegistry.GetNode(tag);
if (cssNode == null)
{
throw new InvalidOperationException($"Trying to update view with invalid tag '{tag}'.");
}
if (props != null)
{
cssNode.UpdateProps(props);
HandleUpdateView(cssNode, className, props);
}
}
/// <summary>
/// Creates a view with the given tag and class name.
/// </summary>
/// <param name="themedContext">The context.</param>
/// <param name="tag">The tag.</param>
/// <param name="className">The class name.</param>
/// <param name="initialProps">The initial props.</param>
public void CreateView(ThemedReactContext themedContext, int tag, string className, JObject initialProps)
{
AssertOnCorrectDispatcher();
using (Tracer.Trace(Tracer.TRACE_TAG_REACT_VIEW, "NativeViewHierarcyManager.CreateView")
.With("tag", tag)
.With("className", className)
.Start())
{
var viewManager = _viewManagers.Get(className);
var view = viewManager.CreateView(themedContext);
_tagsToViews.Add(tag, view);
_tagsToViewManagers.Add(tag, viewManager);
ViewExtensions.SetTag(view, tag);
ViewExtensions.SetReactContext(view, themedContext);
#if WINDOWS_UWP
if (view is UIElement element)
{
AccessibilityHelper.OnViewInstanceCreated(element);
}
#endif
if (initialProps != null)
{
viewManager.UpdateProps(view, initialProps);
}
}
}
/// <summary>
/// Invoked by React when the properties change for a node with the
/// given tag.
/// </summary>
/// <param name="tag">The view tag.</param>
/// <param name="className">The view class name.</param>
/// <param name="props">The properties.</param>
public void UpdateView(int tag, string className, JObject props)
{
var viewManager = _viewManagers.Get(className);
var cssNode = _shadowNodeRegistry.GetNode(tag);
if (cssNode == null)
{
throw new InvalidOperationException(
Invariant($"Trying to update view with invalid tag '{tag}'."));
}
if (props != null)
{
var styles = new ReactStylesDiffMap(props);
cssNode.UpdateProperties(styles);
HandleUpdateView(cssNode, className, styles);
}
}
/// <summary>
/// Creates a view with the given tag and class name.
/// </summary>
/// <param name="themedContext">The context.</param>
/// <param name="tag">The tag.</param>
/// <param name="className">The class name.</param>
/// <param name="initialProperties">The properties.</param>
public void CreateView(ThemedReactContext themedContext, int tag, string className, ReactStylesDiffMap initialProperties)
{
DispatcherHelpers.AssertOnDispatcher();
using (Tracer.Trace(Tracer.TRACE_TAG_REACT_VIEW, "NativeViewHierarcyManager.CreateView")
.With("tag", tag)
.With("className", className))
{
var viewManager = _viewManagers.Get(className);
var view = viewManager.CreateView(themedContext, _jsResponderHandler);
_tagsToViews.Add(tag, view);
_tagsToViewManagers.Add(tag, viewManager);
// Uses an extension method and `Tag` property on
// FrameworkElement to store the tag of the view.
view.SetTag(tag);
view.SetReactContext(themedContext);
if (initialProperties != null)
{
viewManager.UpdateProperties(view, initialProperties);
}
}
}
