63 lines
2.3 KiB
JavaScript
63 lines
2.3 KiB
JavaScript
/**
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* @license Copyright (c) 2003-2013, CKSource - Frederico Knabben. All rights reserved.
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* For licensing, see LICENSE.md or http://ckeditor.com/license
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*/
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/**
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* @fileOverview Defines the {@link CKEDITOR.template} class, which represents
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* an UI template for an editor instance.
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*/
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(function() {
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var cache = {};
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/**
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* Lightweight template used to build the output string from variables.
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*
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* // HTML template for presenting a label UI.
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* var tpl = new CKEDITOR.template( '<div class="{cls}">{label}</div>' );
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* alert( tpl.output( { cls: 'cke-label', label: 'foo'} ) ); // '<div class="cke-label">foo</div>'
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*
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* @class
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* @constructor Creates a template class instance.
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* @param {String} source The template source.
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*/
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CKEDITOR.template = function( source ) {
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// Builds an optimized function body for the output() method, focused on performance.
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// For example, if we have this "source":
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// '<div style="{style}">{editorName}</div>'
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// ... the resulting function body will be (apart from the "buffer" handling):
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// return [ '<div style="', data['style'] == undefined ? '{style}' : data['style'], '">', data['editorName'] == undefined ? '{editorName}' : data['editorName'], '</div>' ].join('');
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// Try to read from the cache.
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if ( cache[ source ] )
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this.output = cache[ source ];
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else {
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var fn = source
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// Escape all quotation marks (").
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.replace( /'/g, "\\'" )
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// Inject the template keys replacement.
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.replace( /{([^}]+)}/g, function( m, key ) {
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return "',data['" + key + "']==undefined?'{" + key + "}':data['" + key + "'],'";
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});
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fn = "return buffer?buffer.push('" + fn + "'):['" + fn + "'].join('');";
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this.output = cache[ source ] = Function( 'data', 'buffer', fn );
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}
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};
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})();
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/**
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* Processes the template, filling its variables with the provided data.
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*
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* @method output
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* @param {Object} data An object containing properties which values will be
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* used to fill the template variables. The property names must match the
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* template variables names. Variables without matching properties will be
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* kept untouched.
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* @param {Array} [buffer] An array into which the output data will be pushed into.
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* The number of entries appended to the array is unknown.
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* @returns {String/Number} If `buffer` has not been provided, the processed
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* template output data, otherwise the new length of `buffer`.
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*/
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