mediawiki-extensions-Visual.../modules/es/bases/es.DocumentViewNode.js

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/**
* Creates an es.DocumentViewNode object.
*
* @class
* @abstract
* @constructor
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* @extends {es.DocumentNode}
* @param {es.DocumentModelNode} model Model to observe
* @param {jQuery} [$element=$( '<div></div>' )] Element to use as a container
*/
es.DocumentViewNode = function( model, $element ) {
// Inheritance
es.DocumentNode.call( this );
// Properties
this.model = model;
this.parent = null;
this.$ = $element || $( '<div/>' );
};
/* Methods */
/**
* Gets the length of the element in the model.
*
* @method
* @see {es.DocumentNode.prototype.getElementLength}
* @returns {Integer} Length of content
*/
es.DocumentViewNode.prototype.getElementLength = function() {
return this.model.getElementLength();
};
/**
* Gets the length of the content in the model.
*
* @method
* @see {es.DocumentNode.prototype.getContentLength}
* @returns {Integer} Length of content
*/
es.DocumentViewNode.prototype.getContentLength = function() {
return this.model.getContentLength();
};
/**
* Attaches node as a child to another node.
*
* @method
* @param {es.DocumentViewNode} parent Node to attach to
* @emits attach (parent)
*/
es.DocumentViewNode.prototype.attach = function( parent ) {
this.parent = parent;
this.emit( 'attach', parent );
};
/**
* Detaches node from it's parent.
*
* @method
* @emits detach (parent)
*/
es.DocumentViewNode.prototype.detach = function() {
var parent = this.parent;
this.parent = null;
this.emit( 'detach', parent );
};
/**
* Gets a reference to this node's parent.
*
* @method
* @returns {es.DocumentViewNode} Reference to this node's parent
*/
es.DocumentViewNode.prototype.getParent = function() {
return this.parent;
};
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/**
* Gets a reference to the model this node observes.
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*
* @method
* @returns {es.DocumentModelNode} Reference to the model this node observes
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*/
es.DocumentViewNode.prototype.getModel = function() {
return this.model;
};
es.DocumentViewNode.getSplitableNode = function( node ) {
var splitableNode = null;
es.DocumentNode.traverseUpstream( node, function( node ) {
var elementType = node.model.getElementType();
if ( splitableNode != null && es.DocumentView.splitRules[ elementType ].children === true ) {
return false;
}
splitableNode = es.DocumentView.splitRules[ elementType ].self ? node : null
} );
return splitableNode;
};
/* Inheritance */
es.extendClass( es.DocumentViewNode, es.DocumentNode );