--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cm/media/js/lib/yui/yui3-3.15.0/build/io-upload-iframe/io-upload-iframe.js Mon Mar 10 15:19:48 2014 +0100
@@ -0,0 +1,305 @@
+YUI.add('io-upload-iframe', function (Y, NAME) {
+
+/**
+Extends the IO to enable file uploads, with HTML forms
+using an iframe as the transport medium.
+@module io
+@submodule io-upload-iframe
+@for IO
+**/
+
+var w = Y.config.win,
+ d = Y.config.doc,
+ _std = (d.documentMode && d.documentMode >= 8),
+ _d = decodeURIComponent,
+ _end = Y.IO.prototype.end;
+
+/**
+ * Creates the iframe transported used in file upload
+ * transactions, and binds the response event handler.
+ *
+ * @method _cFrame
+ * @private
+ * @param {Object} o Transaction object generated by _create().
+ * @param {Object} c Configuration object passed to YUI.io().
+ * @param {Object} io
+ */
+function _cFrame(o, c, io) {
+ var i = Y.Node.create('<iframe src="#" id="io_iframe' + o.id + '" name="io_iframe' + o.id + '" />');
+ i._node.style.position = 'absolute';
+ i._node.style.top = '-1000px';
+ i._node.style.left = '-1000px';
+ Y.one('body').appendChild(i);
+ // Bind the onload handler to the iframe to detect the file upload response.
+ Y.on("load", function() { io._uploadComplete(o, c); }, '#io_iframe' + o.id);
+}
+
+/**
+ * Removes the iframe transport used in the file upload
+ * transaction.
+ *
+ * @method _dFrame
+ * @private
+ * @param {Number} id The transaction ID used in the iframe's creation.
+ */
+function _dFrame(id) {
+ Y.Event.purgeElement('#io_iframe' + id, false);
+ Y.one('body').removeChild(Y.one('#io_iframe' + id));
+}
+
+Y.mix(Y.IO.prototype, {
+ /**
+ * Parses the POST data object and creates hidden form elements
+ * for each key-value, and appends them to the HTML form object.
+ * @method _addData
+ * @private
+ * @static
+ * @param {Object} f HTML form object.
+ * @param {String} s The key-value POST data.
+ * @return {Array} o Array of created fields.
+ */
+ _addData: function(f, s) {
+ // Serialize an object into a key-value string using
+ // querystring-stringify-simple.
+ if (Y.Lang.isObject(s)) {
+ s = Y.QueryString.stringify(s);
+ }
+
+ var o = [],
+ m = s.split('='),
+ i, l;
+
+ for (i = 0, l = m.length - 1; i < l; i++) {
+ o[i] = d.createElement('input');
+ o[i].type = 'hidden';
+ o[i].name = _d(m[i].substring(m[i].lastIndexOf('&') + 1));
+ o[i].value = (i + 1 === l) ? _d(m[i + 1]) : _d(m[i + 1].substring(0, (m[i + 1].lastIndexOf('&'))));
+ f.appendChild(o[i]);
+ }
+
+ return o;
+ },
+
+ /**
+ * Removes the custom fields created to pass additional POST
+ * data, along with the HTML form fields.
+ * @method _removeData
+ * @private
+ * @static
+ * @param {Object} f HTML form object.
+ * @param {Object} o HTML form fields created from configuration.data.
+ */
+ _removeData: function(f, o) {
+ var i, l;
+
+ for (i = 0, l = o.length; i < l; i++) {
+ f.removeChild(o[i]);
+ }
+ },
+
+ /**
+ * Sets the appropriate attributes and values to the HTML
+ * form, in preparation of a file upload transaction.
+ * @method _setAttrs
+ * @private
+ * @static
+ * @param {Object} f HTML form object.
+ * @param {Object} id The Transaction ID.
+ * @param {Object} uri Qualified path to transaction resource.
+ */
+ _setAttrs: function(f, id, uri) {
+ // Track original HTML form attribute values.
+ this._originalFormAttrs = {
+ action: f.getAttribute('action'),
+ target: f.getAttribute('target')
+ };
+
+ f.setAttribute('action', uri);
+ f.setAttribute('method', 'POST');
+ f.setAttribute('target', 'io_iframe' + id );
+ f.setAttribute(Y.UA.ie && !_std ? 'encoding' : 'enctype', 'multipart/form-data');
+ },
+
+ /**
+ * Reset the HTML form attributes to their original values.
+ * @method _resetAttrs
+ * @private
+ * @static
+ * @param {Object} f HTML form object.
+ * @param {Object} a Object of original attributes.
+ */
+ _resetAttrs: function(f, a) {
+ Y.Object.each(a, function(v, p) {
+ if (v) {
+ f.setAttribute(p, v);
+ }
+ else {
+ f.removeAttribute(p);
+ }
+ });
+ },
+
+ /**
+ * Starts timeout count if the configuration object
+ * has a defined timeout property.
+ *
+ * @method _startUploadTimeout
+ * @private
+ * @static
+ * @param {Object} o Transaction object generated by _create().
+ * @param {Object} c Configuration object passed to YUI.io().
+ */
+ _startUploadTimeout: function(o, c) {
+ var io = this;
+
+ io._timeout[o.id] = w.setTimeout(
+ function() {
+ o.status = 0;
+ o.statusText = 'timeout';
+ io.complete(o, c);
+ io.end(o, c);
+ }, c.timeout);
+ },
+
+ /**
+ * Clears the timeout interval started by _startUploadTimeout().
+ * @method _clearUploadTimeout
+ * @private
+ * @static
+ * @param {Number} id - Transaction ID.
+ */
+ _clearUploadTimeout: function(id) {
+ var io = this;
+
+ w.clearTimeout(io._timeout[id]);
+ delete io._timeout[id];
+ },
+
+ /**
+ * Bound to the iframe's Load event and processes
+ * the response data.
+ * @method _uploadComplete
+ * @private
+ * @static
+ * @param {Object} o The transaction object
+ * @param {Object} c Configuration object for the transaction.
+ */
+ _uploadComplete: function(o, c) {
+ var io = this,
+ d = Y.one('#io_iframe' + o.id).get('contentWindow.document'),
+ b = d.one('body'),
+ p;
+
+ if (c.timeout) {
+ io._clearUploadTimeout(o.id);
+ }
+
+ try {
+ if (b) {
+ // When a response Content-Type of "text/plain" is used, Firefox and Safari
+ // will wrap the response string with <pre></pre>.
+ p = b.one('pre:first-child');
+ o.c.responseText = p ? p.get('text') : b.get('text');
+ }
+ else {
+ o.c.responseXML = d._node;
+ }
+ }
+ catch (e) {
+ o.e = "upload failure";
+ }
+
+ io.complete(o, c);
+ io.end(o, c);
+ // The transaction is complete, so call _dFrame to remove
+ // the event listener bound to the iframe transport, and then
+ // destroy the iframe.
+ w.setTimeout( function() { _dFrame(o.id); }, 0);
+ },
+
+ /**
+ * Uploads HTML form data, inclusive of files/attachments,
+ * using the iframe created in _create to facilitate the transaction.
+ * @method _upload
+ * @private
+ * @static
+ * @param {Object} o The transaction object
+ * @param {Object} uri Qualified path to transaction resource.
+ * @param {Object} c Configuration object for the transaction.
+ */
+ _upload: function(o, uri, c) {
+ var io = this,
+ f = (typeof c.form.id === 'string') ? d.getElementById(c.form.id) : c.form.id,
+ fields;
+
+ // Initialize the HTML form properties in case they are
+ // not defined in the HTML form.
+ io._setAttrs(f, o.id, uri);
+ if (c.data) {
+ fields = io._addData(f, c.data);
+ }
+
+ // Start polling if a callback is present and the timeout
+ // property has been defined.
+ if (c.timeout) {
+ io._startUploadTimeout(o, c);
+ }
+
+ // Start file upload.
+ f.submit();
+ io.start(o, c);
+ if (c.data) {
+ io._removeData(f, fields);
+ }
+
+ return {
+ id: o.id,
+ abort: function() {
+ o.status = 0;
+ o.statusText = 'abort';
+ if (Y.one('#io_iframe' + o.id)) {
+ _dFrame(o.id);
+ io.complete(o, c);
+ io.end(o, c);
+ }
+ else {
+ return false;
+ }
+ },
+ isInProgress: function() {
+ return Y.one('#io_iframe' + o.id) ? true : false;
+ },
+ io: io
+ };
+ },
+
+ upload: function(o, uri, c) {
+ _cFrame(o, c, this);
+ return this._upload(o, uri, c);
+ },
+
+ end: function(transaction, config) {
+ var form, io;
+
+ if (config) {
+ form = config.form;
+
+ if (form && form.upload) {
+ io = this;
+
+ // Restore HTML form attributes to their original values.
+ form = (typeof form.id === 'string') ? d.getElementById(form.id) : form.id;
+
+ // Check whether the form still exists before resetting it.
+ if (form) {
+ io._resetAttrs(form, this._originalFormAttrs);
+ }
+ }
+ }
+
+ return _end.call(this, transaction, config);
+ }
+}, true);
+
+
+}, '@VERSION@', {"requires": ["io-base", "node-base"]});