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

86 lines
2.5 KiB
JavaScript

/**
* Creates an es.DocumentModelLeafNode object.
*
* @class
* @abstract
* @constructor
* @extends {es.DocumentLeafNode}
* @extends {es.DocumentModelNode}
* @param {String} type Symbolic name of node type
* @param {Object} element Element object in document data
* @param {Integer} [length] Length of content data in document
*/
es.DocumentModelLeafNode = function( type, element, length ) {
// Inheritance
es.DocumentLeafNode.call( this );
es.DocumentModelNode.call( this, type, element, length );
// Properties
this.contentLength = length || 0;
};
/* Methods */
/**
* Gets a plain object representation of the document's data.
*
* @method
* @see {es.DocumentModelNode.getPlainObject}
* @see {es.DocumentModel.newFromPlainObject}
* @returns {Object} Plain object representation,
*/
es.DocumentModelLeafNode.prototype.getPlainObject = function() {
var obj = { 'type': this.type };
if ( this.element && this.element.attributes ) {
obj.attributes = es.copyObject( this.element.attributes );
}
obj.content = es.DocumentModel.getExpandedContentData( this.getContent() );
return obj;
};
/**
* Gets the content length.
*
* FIXME: This method makes assumptions that a node with a data property is a DocumentModel, which
* may be an issue if sub-classes of DocumentModelLeafNode other than DocumentModel have a data property
* as well. A safer way of determining this would be helpful in preventing future bugs.
*
* @method
* @param {es.Range} [range] Range of content to get
* @returns {Integer} Length of content
*/
es.DocumentModelLeafNode.prototype.getContent = function( range ) {
// Find root
var root = this.data ? this : ( this.root.data ? this.root : null );
if ( root ) {
return root.getContentFromNode( this, range );
}
return [];
};
/**
* Gets plain text version of the content within a specific range.
*
* @method
* @param {es.Range} [range] Range of text to get
* @returns {String} Text within given range
*/
es.DocumentModelLeafNode.prototype.getText = function( range ) {
var content = this.getContent( range );
// Copy characters
var text = '';
for ( var i = 0, length = content.length; i < length; i++ ) {
// If not using in IE6 or IE7 (which do not support array access for strings) use this..
// text += this.data[i][0];
// Otherwise use this...
text += typeof content[i] === 'string' ? content[i] : content[i][0];
}
return text;
};
/* Inheritance */
es.extendClass( es.DocumentModelLeafNode, es.DocumentLeafNode );
es.extendClass( es.DocumentModelLeafNode, es.DocumentModelNode );