/** * ContentEditable node for text. * * @class * @constructor * @extends {ve.ce.LeafNode} * @param model {ve.dm.TextNode} Model to observe */ ve.ce.TextNode = function( model ) { // Inheritance ve.ce.LeafNode.call( this, 'text', model, $( document.createTextNode('') ) ); // Events this.model.addListenerMethod( this, 'update', 'onUpdate' ); // Intialization this.onUpdate( true ); }; /* Static Members */ /** * Node rules. * * @see ve.ce.NodeFactory * @static * @member */ ve.ce.TextNode.rules = { 'canBeSplit': true }; /** * Mapping of character and HTML entities or renderings. * * @static * @member */ ve.ce.TextNode.htmlCharacters = { '&': '&', '<': '<', '>': '>', '\'': ''', '"': '"', '\n': '↵', '\t': '➞' }; /** * List of annotation rendering implementations. * * Each supported annotation renderer must have an open and close property, each either a string or * a function which accepts a data argument. * * @static * @member */ ve.ce.TextNode.annotationRenderers = { 'textStyle/bold': { 'open': '', 'close': '' }, 'textStyle/italic': { 'open': '', 'close': '' }, 'textStyle/underline': { 'open': '', 'close': '' }, 'textStyle/strong': { 'open': '', 'close': '' }, 'textStyle/emphasize': { 'open': '', 'close': '' }, 'textStyle/big': { 'open': '', 'close': '' }, 'textStyle/small': { 'open': '', 'close': '' }, 'textStyle/superScript': { 'open': '', 'close': '' }, 'textStyle/subScript': { 'open': '', 'close': '' }, 'link/extLink': { 'open': function( data ) { return ''; }, 'close': '' }, 'link/wikiLink': { 'open': function( data ) { return ''; }, 'close': '' }, 'link/unknown': { 'open': function( data ) { return ''; }, 'close': '' } }; /* Methods */ /** * Responds to model update events. * * If the source changed since last update the image's src attribute will be updated accordingly. * * @method */ ve.ce.TextNode.prototype.onUpdate = function( force ) { if ( force === true || this.getSurface().render === true ) { var $new = $( $( '' + this.getHtml() + '' ).contents() ); if ( $new.length === 0 ) { $new = $new.add( document.createTextNode( '' ) ); } this.$.replaceWith( $new ); this.$ = $new; if ( this.parent ) { this.parent.clean(); if ( ve.debug ) { this.parent.$.css('background-color', '#F6F6F6'); setTimeout( ve.proxy( function() { this.parent.$.css('background-color', 'transparent'); }, this ), 350 ); } } } }; /** * Gets an HTML rendering of data within content model. * * @method * @param {String} Rendered HTML of data within content model */ ve.ce.TextNode.prototype.getHtml = function() { var data = this.model.getDocument().getDataFromNode( this.model ), htmlChars = ve.ce.TextNode.htmlCharacters, renderers = ve.ce.TextNode.annotationRenderers, out = '', i, j, hash, left = '', right, open, close, index, leftPlain, rightPlain, hashStack = [], annotationStack = {}; // TODO: Special handling for spaces in
 may be required
	if ( data.length >= 2 ) {
		for( i = 0; i < data.length - 1; i++ ) {
			if ( 
				( i === 0 && data[i][0][0] === ' ' && data[i + 1][0][0] !== ' ' ) ||
				( i === data.length - 1 && data[i][0][0] === ' ' )
			){
				// Replace last space and first space (if not followed by another space) with  
				if ( ve.isArray( data[i] ) ) {
					data[i][0] = ' ';
				} else {
					data[i] = ' ';
				}
			} else if ( data[i][0][0] === ' ' && data[i + 1][0] === ' ' ) {
				// Mulitple spaces should alternate spaces and  
				if ( ve.isArray( data[i + 1] ) ) {
					data[i + 1][0] = ' ';
				} else {
					data[i + 1] = ' ';
				}
				i++;
			}
		}
	}

	var openAnnotations = function( annotations ) {
		var out = '',
			annotation;

		for ( var hash in annotations ) {
			annotation = annotations[hash];
			out += typeof renderers[annotation.type].open === 'function' ?
				renderers[annotation.type].open( annotation.data ) :
				renderers[annotation.type].open;
			hashStack.push( hash );
			annotationStack[hash] = annotation;
		}
		return out;
	};

	var closeAnnotations = function( annotations ) {
		var out = '',
			annotation;

		for ( var hash in annotations ) {
			annotation = annotations[hash];
			out += typeof renderers[annotation.type].close === 'function' ?
				renderers[annotation.type].close( annotation.data ) :
				renderers[annotation.type].close;

			// new version
			hashStack.pop();
			delete annotationStack[hash];

			// old version
			/*
			var depth = hashStack.indexOf( hash );
			if ( depth !== -1 ) {
				ve.log(depth, hashStack.length);
				hashStack.splice( depth, 1 );
				delete annotationStack[hash];
			}
			*/
		}
		return out;
	};

	for ( i = 0; i < data.length; i++ ) {
		right = data[i];
		leftPlain = typeof left === 'string';
		rightPlain = typeof right === 'string';
		
		if ( !leftPlain && rightPlain ) {
			// [formatted][plain]
			close = {};
			for ( j = hashStack.length - 1; j >= 0; j-- ) {
				close[hashStack[j]] = annotationStack[hashStack[j]];
			}
			out += closeAnnotations( close );
		} else if ( leftPlain && !rightPlain ) {
			// [plain][formatted]
			out += openAnnotations( right[1] );
		} else if ( !leftPlain && !rightPlain ) {
			// [formatted][formatted]

			// setting index to undefined is is necessary to it does not use value from
			// the previous iteration
			open = {},
			index = undefined;

			for ( hash in left[1] ) {
				if ( !( hash in right[1] ) ) {
					index = ( index === undefined ) ?
						hashStack.indexOf( hash ) :
						Math.min( index, hashStack.indexOf( hash ) );
				}
			}

			if ( index !== undefined ) {
				close = {};
				for ( j = hashStack.length - 1; j >= index; j-- ) {
					close[hashStack[j]] = annotationStack[hashStack[j]];
				}

				for ( j = index; j < hashStack.length; j++ ) {
					if ( hashStack[j] in right[1] && hashStack[j] in left[1] ) {
						open[hashStack[j]] = annotationStack[hashStack[j]];
					}
				}
				out += closeAnnotations( close );
			}

			for ( hash in right[1] ) {
				if ( !( hash in left[1] ) ) {
					open[hash] = right[1][hash];
				}
			}

			out += openAnnotations( open );
		}

		var chr = rightPlain ? right : right[0];
		out += chr in htmlChars ? htmlChars[chr] : chr;
		left = right;
	}

	close = {};
	for ( j = hashStack.length - 1; j >= 0; j-- ) {
		close[hashStack[j]] = annotationStack[hashStack[j]];
	}
	out += closeAnnotations( close );

	return out;
};

ve.ce.TextNode.prototype.getSurface = function() {
	var view = this;
	while( !view.surface ) {
		view = view.parent;
	}
	return view.surface;
};

/* Registration */

ve.ce.nodeFactory.register( 'text', ve.ce.TextNode );

/* Inheritance */

ve.extendClass( ve.ce.TextNode, ve.ce.LeafNode );