/// <summary>
/// Returns all CSS class names applicable to the given container, based on its
/// state. The array of class names returned includes the renderer's own CSS
/// class, followed by a CSS class indicating the container's orientation,
/// followed by any state-specific CSS classes.
/// </summary>
/// <param name="container">Container whose CSS classes are to be</param>
/// returned.
/// <returns>Array of CSS class names applicable to the
/// container.</returns>
public JsArray <string> getClassNames(goog.ui.Container container)
{
var baseClass = this.getCssClass();
var isHorizontal =
container.getOrientation() == goog.ui.Container.Orientation.HORIZONTAL;
var classNames = new JsArray <string> {
baseClass, (isHorizontal ? le.getCssName(baseClass, "horizontal") :
le.getCssName(baseClass, "vertical"))
};
if (!container.isEnabled())
{
classNames.Push(le.getCssName(baseClass, "disabled"));
}
return(classNames);
}
/// <summary>
/// Takes a container and an element that may contain child elements, decorates
/// the child elements, and adds the corresponding components to the container
/// as child components. Any non-element child nodes (e.g. empty text nodes
/// introduced by line breaks in the HTML source) are removed from the element.
/// </summary>
/// <param name="container">Container whose children are to be</param>
/// discovered.
/// <param name="element">Element whose children are to be decorated.</param>
/// <param name="opt_firstChild">the first child to be decorated.</param>
public void decorateChildren(
goog.ui.Container container, HTMLElement element, HTMLElement opt_firstChild = null)
{
if (element != null)
{
var node = opt_firstChild ?? element.FirstChild;
Node next;
// Tag soup HTML may result in a DOM where siblings have different parents.
while (node != null && node.ParentNode == element)
{
// Get the next sibling here, since the node may be replaced or removed.
next = node.NextSibling;
if (node.NodeType == NodeType.Element)
{
// Decorate element node.
var child = this.getDecoratorForChild((HTMLElement)node);
if (child != null)
{
// addChild() may need to look at the element.
child.setElementInternal((HTMLElement)node);
// If the container is disabled, mark the child disabled too. See
// bug 1263729. Note that this must precede the call to addChild().
if (!container.isEnabled())
{
child.setEnabled(false);
}
container.addChild(child);
child.decorate((HTMLElement)node);
}
}
else if (node.NodeValue == null || node.NodeValue.ToString().Trim() == "")
{
// Remove empty text node, otherwise madness ensues (e.g. controls that
// use goog-inline-block will flicker and shift on hover on Gecko).
element.RemoveChild(node);
}
node = next;
}
}
}