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+/*
+ * jQuery Iframe Transport Plugin 1.8.2
+ * https://github.com/blueimp/jQuery-File-Upload
+ *
+ * Copyright 2011, Sebastian Tschan
+ * https://blueimp.net
+ *
+ * Licensed under the MIT license:
+ * http://www.opensource.org/licenses/MIT
+ */
+
+/* global define, window, document */
+
+(function (factory) {
+ 'use strict';
+ if (typeof define === 'function' && define.amd) {
+ // Register as an anonymous AMD module:
+ define(['jquery'], factory);
+ } else {
+ // Browser globals:
+ factory(window.jQuery);
+ }
+}(function ($) {
+ 'use strict';
+
+ // Helper variable to create unique names for the transport iframes:
+ var counter = 0;
+
+ // The iframe transport accepts four additional options:
+ // options.fileInput: a jQuery collection of file input fields
+ // options.paramName: the parameter name for the file form data,
+ // overrides the name property of the file input field(s),
+ // can be a string or an array of strings.
+ // options.formData: an array of objects with name and value properties,
+ // equivalent to the return data of .serializeArray(), e.g.:
+ // [{name: 'a', value: 1}, {name: 'b', value: 2}]
+ // options.initialIframeSrc: the URL of the initial iframe src,
+ // by default set to "javascript:false;"
+ $.ajaxTransport('iframe', function (options) {
+ if (options.async) {
+ // javascript:false as initial iframe src
+ // prevents warning popups on HTTPS in IE6:
+ /*jshint scripturl: true */
+ var initialIframeSrc = options.initialIframeSrc || 'javascript:false;',
+ /*jshint scripturl: false */
+ form,
+ iframe,
+ addParamChar;
+ return {
+ send: function (_, completeCallback) {
+ form = $('<form style="display:none;"></form>');
+ form.attr('accept-charset', options.formAcceptCharset);
+ addParamChar = /\?/.test(options.url) ? '&' : '?';
+ // XDomainRequest only supports GET and POST:
+ if (options.type === 'DELETE') {
+ options.url = options.url + addParamChar + '_method=DELETE';
+ options.type = 'POST';
+ } else if (options.type === 'PUT') {
+ options.url = options.url + addParamChar + '_method=PUT';
+ options.type = 'POST';
+ } else if (options.type === 'PATCH') {
+ options.url = options.url + addParamChar + '_method=PATCH';
+ options.type = 'POST';
+ }
+ // IE versions below IE8 cannot set the name property of
+ // elements that have already been added to the DOM,
+ // so we set the name along with the iframe HTML markup:
+ counter += 1;
+ iframe = $(
+ '<iframe src="' + initialIframeSrc +
+ '" name="iframe-transport-' + counter + '"></iframe>'
+ ).bind('load', function () {
+ var fileInputClones,
+ paramNames = $.isArray(options.paramName) ?
+ options.paramName : [options.paramName];
+ iframe
+ .unbind('load')
+ .bind('load', function () {
+ var response;
+ // Wrap in a try/catch block to catch exceptions thrown
+ // when trying to access cross-domain iframe contents:
+ try {
+ response = iframe.contents();
+ // Google Chrome and Firefox do not throw an
+ // exception when calling iframe.contents() on
+ // cross-domain requests, so we unify the response:
+ if (!response.length || !response[0].firstChild) {
+ throw new Error();
+ }
+ } catch (e) {
+ response = undefined;
+ }
+ // The complete callback returns the
+ // iframe content document as response object:
+ completeCallback(
+ 200,
+ 'success',
+ {'iframe': response}
+ );
+ // Fix for IE endless progress bar activity bug
+ // (happens on form submits to iframe targets):
+ $('<iframe src="' + initialIframeSrc + '"></iframe>')
+ .appendTo(form);
+ window.setTimeout(function () {
+ // Removing the form in a setTimeout call
+ // allows Chrome's developer tools to display
+ // the response result
+ form.remove();
+ }, 0);
+ });
+ form
+ .prop('target', iframe.prop('name'))
+ .prop('action', options.url)
+ .prop('method', options.type);
+ if (options.formData) {
+ $.each(options.formData, function (index, field) {
+ $('<input type="hidden"/>')
+ .prop('name', field.name)
+ .val(field.value)
+ .appendTo(form);
+ });
+ }
+ if (options.fileInput && options.fileInput.length &&
+ options.type === 'POST') {
+ fileInputClones = options.fileInput.clone();
+ // Insert a clone for each file input field:
+ options.fileInput.after(function (index) {
+ return fileInputClones[index];
+ });
+ if (options.paramName) {
+ options.fileInput.each(function (index) {
+ $(this).prop(
+ 'name',
+ paramNames[index] || options.paramName
+ );
+ });
+ }
+ // Appending the file input fields to the hidden form
+ // removes them from their original location:
+ form
+ .append(options.fileInput)
+ .prop('enctype', 'multipart/form-data')
+ // enctype must be set as encoding for IE:
+ .prop('encoding', 'multipart/form-data');
+ // Remove the HTML5 form attribute from the input(s):
+ options.fileInput.removeAttr('form');
+ }
+ form.submit();
+ // Insert the file input fields at their original location
+ // by replacing the clones with the originals:
+ if (fileInputClones && fileInputClones.length) {
+ options.fileInput.each(function (index, input) {
+ var clone = $(fileInputClones[index]);
+ // Restore the original name and form properties:
+ $(input)
+ .prop('name', clone.prop('name'))
+ .attr('form', clone.attr('form'));
+ clone.replaceWith(input);
+ });
+ }
+ });
+ form.append(iframe).appendTo(document.body);
+ },
+ abort: function () {
+ if (iframe) {
+ // javascript:false as iframe src aborts the request
+ // and prevents warning popups on HTTPS in IE6.
+ // concat is used to avoid the "Script URL" JSLint error:
+ iframe
+ .unbind('load')
+ .prop('src', initialIframeSrc);
+ }
+ if (form) {
+ form.remove();
+ }
+ }
+ };
+ }
+ });
+
+ // The iframe transport returns the iframe content document as response.
+ // The following adds converters from iframe to text, json, html, xml
+ // and script.
+ // Please note that the Content-Type for JSON responses has to be text/plain
+ // or text/html, if the browser doesn't include application/json in the
+ // Accept header, else IE will show a download dialog.
+ // The Content-Type for XML responses on the other hand has to be always
+ // application/xml or text/xml, so IE properly parses the XML response.
+ // See also
+ // https://github.com/blueimp/jQuery-File-Upload/wiki/Setup#content-type-negotiation
+ $.ajaxSetup({
+ converters: {
+ 'iframe text': function (iframe) {
+ return iframe && $(iframe[0].body).text();
+ },
+ 'iframe json': function (iframe) {
+ return iframe && $.parseJSON($(iframe[0].body).text());
+ },
+ 'iframe html': function (iframe) {
+ return iframe && $(iframe[0].body).html();
+ },
+ 'iframe xml': function (iframe) {
+ var xmlDoc = iframe && iframe[0];
+ return xmlDoc && $.isXMLDoc(xmlDoc) ? xmlDoc :
+ $.parseXML((xmlDoc.XMLDocument && xmlDoc.XMLDocument.xml) ||
+ $(xmlDoc.body).html());
+ },
+ 'iframe script': function (iframe) {
+ return iframe && $.globalEval($(iframe[0].body).text());
+ }
+ }
+ });
+
+}));