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Diffstat (limited to 'library/blueimp_upload/js/jquery.iframe-transport.js')
| -rw-r--r-- | library/blueimp_upload/js/jquery.iframe-transport.js | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/library/blueimp_upload/js/jquery.iframe-transport.js b/library/blueimp_upload/js/jquery.iframe-transport.js new file mode 100644 index 000000000..8d64b591b --- /dev/null +++ b/library/blueimp_upload/js/jquery.iframe-transport.js @@ -0,0 +1,214 @@ +/* + * 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()); + } + } + }); + +})); |