mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-11-25 06:46:26 +00:00
114 lines
3.1 KiB
JavaScript
114 lines
3.1 KiB
JavaScript
/**
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* ContentEditable node that can have branch or leaf children.
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*
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* @class
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* @abstract
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* @constructor
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* @extends {ve.BranchNode}
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* @extends {ve.ce.Node}
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* @param {String} type Symbolic name of node type
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* @param model {ve.dm.BranchNode} Model to observe
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* @param {jQuery} [$element] Element to use as a container
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*/
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ve.ce.BranchNode = function( type, model, $element ) {
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// Inheritance
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ve.BranchNode.call( this );
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ve.ce.Node.call( this, type, model, $element );
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// Properties
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this.domWrapperElementType = this.$.get(0).nodeName.toLowerCase();
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// Events
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this.model.addListenerMethod( this, 'splice', 'onSplice' );
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// Initialization
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if ( model.getChildren().length ) {
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this.onSplice.apply( this, [0, 0].concat( model.getChildren() ) );
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}
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};
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/* Static Methods */
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ve.ce.BranchNode.getDomWrapperType = function( model, key ) {
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var value = model.getAttribute( key );
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if ( value === undefined ) {
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throw 'Undefined attribute: ' + key;
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}
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var types = ve.ce.factory.lookup( model.getType() ).domWrapperElementTypes;
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if ( types[value] === undefined ) {
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throw 'Invalid attribute value: ' + value;
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}
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return types[value];
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};
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ve.ce.BranchNode.getDomWrapper = function( model, key ) {
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var type = ve.ce.BranchNode.getDomWrapperType( model, key );
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return $( '<' + type + '></' + type + '>' );
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};
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/* Methods */
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ve.ce.BranchNode.prototype.updateDomWrapper = function( key ) {
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var type = ve.ce.BranchNode.getDomWrapperType( this.model, key );
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if ( type !== this.domWrapperElementType ) {
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var $element = $( '<' + type + '></' + type + '>' );
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// Copy classes
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$element.attr( 'class', this.$.attr( 'class' ) );
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// Move contents
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$element.append( this.$.contents() );
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// Swap elements
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this.$.replaceWith( $element );
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// Use new element from now on
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this.$ = $element;
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}
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};
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/**
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* Responds to splice events on a ve.dm.BranchNode.
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*
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* ve.ce.Node objects are generated from the inserted ve.dm.Node objects, producing a view that's a
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* mirror of it's model.
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*
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* @method
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* @param {Integer} index Index to remove and or insert nodes at
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* @param {Integer} howmany Number of nodes to remove
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* @param {ve.dm.BranchNode} [...] Variadic list of nodes to insert
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*/
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ve.ce.BranchNode.prototype.onSplice = function( index, howmany ) {
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var i,
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length,
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args = Array.prototype.slice.call( arguments, 0 );
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// Convert models to views and attach them to this node
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if ( args.length >= 3 ) {
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for ( i = 2, length = args.length; i < length; i++ ) {
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args[i] = ve.ce.factory.create( args[i].getType(), args[i] );
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}
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}
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var removals = this.children.splice.apply( this.children, args );
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for ( i = 0, length = removals.length; i < length; i++ ) {
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removals[i].detach();
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// Update DOM
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removals[i].$.detach();
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}
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if ( args.length >= 3 ) {
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var $target;
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if ( index ) {
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// Get the element before the insertion point
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$anchor = this.$.children().eq( index - 1 );
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}
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for ( i = args.length - 1; i >= 2; i-- ) {
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args[i].attach( this );
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if ( index ) {
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$anchor.after( args[i].$ );
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} else {
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this.$.prepend( args[i].$ );
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}
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}
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}
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};
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/* Inheritance */
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ve.extendClass( ve.ce.BranchNode, ve.BranchNode );
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ve.extendClass( ve.ce.BranchNode, ve.ce.Node );
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