diff -r 000000000000 -r 40c8f766c9b8 src/cm/media/js/lib/yui/yui_3.0.0b1/build/io/io-upload-iframe-debug.js --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/cm/media/js/lib/yui/yui_3.0.0b1/build/io/io-upload-iframe-debug.js Mon Nov 23 15:14:29 2009 +0100 @@ -0,0 +1,192 @@ +/* +Copyright (c) 2009, Yahoo! Inc. All rights reserved. +Code licensed under the BSD License: +http://developer.yahoo.net/yui/license.txt +version: 3.0.0b1 +build: 1163 +*/ +YUI.add('io-upload-iframe', function(Y) { + + /** + * Extends the IO base class to enable file uploads, with HTML forms, + * using an iframe as the transport medium. + * @module io + * @submodule io-upload-iframe + */ + + var w = Y.config.win; + /** + * @description Parses the POST data object and creates hidden form elements + * for each key-value, and appends them to the HTML form object. + * @method appendData + * @private + * @static + * @param {object} d The key-value hash map. + * @return {array} e Array of created fields. + */ + + function _addData(f, d) { + var e = [], + p, i; + + for (p in d) { + if (d.hasOwnProperty(d, p)) { + e[i] = document.createElement('input'); + e[i].type = 'hidden'; + e[i].name = p; + e[i].value = d[p]. + f.appendChild(e[i]); + } + } + + return e; + } + + function _removeData(f, e) { + var i, l; + if (e && e.length > 0) { + for(i = 0, l = e.length; i < l; i++){ + f.removeChild(e[i]); + } + } + } + + function _create(o, c) { + var i = Y.Node.create(''), + cfg = { + position: 'absolute', + top: '-1000px', + left: '-1000px' + }; + + i.setStyles(cfg); + Y.get('body').appendChild(i); + // Bind the onload handler to the iframe to detect the file upload response. + Y.on("load", function() { _handle(o, c) }, '#ioupload' + o.id); + } + + // Create the upload callback handler that fires when the iframe + // receives the load event. Subsequently, the event handler is detached + // and the iframe removed from the document. + function _handle(o, c) { + var p, + b = Y.get('#ioupload' + o.id).get('contentWindow.document.body'); + + if (c.timeout) { + _clearTimeout(o.id); + } + + // When a response Content-Type of "text/plain" is used, Firefox and Safari + // will wrap the response string with
. + p = b.query('pre:first-child'); + o.c.responseText = (p) ? p.get('innerHTML') : b.get('innerHTML'); + Y.io.complete(o, c); + // The transaction is complete, so call _destroy to remove + // the event listener bound to the iframe transport, and then + // destroy the iframe. + setTimeout( function() { _destroy(o.id); }, 0); + } + + /** + * @description Starts timeout count if the configuration object + * has a defined timeout property. + * + * @method _startTimeout + * @private + * @static + * @param {object} o Transaction object generated by _create(). + * @param {object} c Configuration object passed to YUI.io(). + * @return void + */ + function _startTimeout(o, c) { + Y.io._timeout[o.id] = w.setTimeout(function() { Y.io.abort(o, c); }, c.timeout); + } + + /** + * @description Clears the timeout interval started by _startTimeout(). + * + * @method _clearTimeout + * @private + * @static + * @param {number} id - Transaction id. + * @return void + */ + function _clearTimeout(id) { + w.clearTimeout(Y.io._timeout[id]); + delete Y.io._timeout[id]; + } + + function _destroy(id) { + Y.Event.purgeElement('#ioupload' + id, false); + Y.get('body').removeChild(Y.get('#ioupload' + id)); + Y.log('The iframe transport for transaction ' + id + 'has been destroyed.', 'info', 'io'); + } + + Y.mix(Y.io, { + + /** + * @description Uploads HTML form, inclusive of files/attachments, using the + * iframe created in createFrame to facilitate the transaction. + * @method _upload + * @private + * @static + * @param {o} o The transaction object + * @param {object} uri Qualified path to transaction resource. + * @param {object} c Configuration object for the transaction. + * @return {void} + */ + _upload: function(o, uri, c) { + var f = (typeof c.form.id === 'string') ? document.getElementById(c.form.id) : c.form.id, + e, fields, i, p, attr; + + _create(o, c); + // Track original HTML form attribute values. + attr = { + action: f.getAttribute('action'), + target: f.getAttribute('target') + }; + + // Initialize the HTML form properties in case they are + // not defined in the HTML form. + f.setAttribute('action', uri); + f.setAttribute('method', 'POST'); + f.setAttribute('target', 'ioupload' + o.id ); + f.setAttribute((Y.UA.ie && !document.documentMode) ? 'encoding' : 'enctype', 'multipart/form-data'); + + if (c.data) { + fields = _addData(f, c.data); + } + + // Start polling if a callback is present and the timeout + // property has been defined. + if (c.timeout) { + _startTimeout(o, c); + Y.log('Transaction timeout started for transaction ' + id + '.', 'info', 'io'); + } + + // Start file upload. + f.submit(); + Y.io.start(o.id, c); + + if (c.data) { + _removeData(f, fields); + } + + // Restore HTML form attributes to their original + // values prior to file upload. + for (p in attr) { + if (attr.hasOwnProperty(attr, p)) { + if (attr[p]) { + f.setAttribute(p, f[prop]); + } + else { + f.removeAttribute(p); + } + } + } + } + }); + + + +}, '3.0.0b1' ,{requires:['io-base']});