Widget Parent

=============

3.4.1

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* Fixed issue with children not being destroyed, when

parent.destroy() is called.

* Added if (sibling.get("rendered")) check before trying to insert

children after/before siblings. This is not required for the out of

the box Parent/Child implementation, but is useful for custom

implementations which customize children to render asynchronously.

See #2529863

* Fixed issue where previously rendered children, added to an empty parent,

would not get rendered into the parent's child container node.

Based on the pull request from andreas-karlsson, with the root fix *and* unit

test (nicely done): https://github.com/yui/yui3/pull/25

3.4.0

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* No changes

3.3.0

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* Changed instanceof to Y.instanceOf, to prevent leaks in IE7

* Renamed "type" in child configuration, to "childType", so that

children can have a "type" attribute for it's own context

(A FormElement widget for examplei, with a "type").

"type" is still supported but deprecated for backward compatibility,

so it's only used to define a child widget type if "childType" is not

provided.

* Fixed remove(), to actually remove child from DOM also.

3.2.0

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* No changes

3.1.1

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* No changes

3.1.0

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* "childAdded" event renamed to "addChild"

* "childRemoved" event renamed to "removeChild"

* Now augmented with Y.ArrayList

* "selection" attribute now returns an Y.ArrayList or Widget

* Removed "children" attribute since that functionality is provided

by Y.ArrayList

- Can retrieve # of child via the size() method

- Can iterate children via this.each()

- Can retrieve a individual child via the item() method

* add method will always return a Y.ArrayList instance for easy chaining

* removeAll method will always return a Y.ArrayList instance for easy chaining

* added selectAll() and deselectAll() methods

* widget UI will render children added/inserted children after widget is rendered

* widget UI will update when a child is removed