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629 lines
25 KiB
629 lines
25 KiB
/*
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* jQuery File Upload Plugin 3.7.1
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*
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* Copyright 2010, Sebastian Tschan, AQUANTUM
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* Licensed under the MIT license:
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* http://creativecommons.org/licenses/MIT/
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*
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* https://blueimp.net
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* http://www.aquantum.de
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*/
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/*jslint browser: true */
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/*global File, FileReader, FormData, unescape, jQuery */
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(function ($) {
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var defaultNamespace = 'file_upload',
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undef = 'undefined',
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func = 'function',
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num = 'number',
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FileUpload,
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methods,
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MultiLoader = function (callBack, numberComplete) {
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var loaded = 0;
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this.complete = function () {
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loaded += 1;
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if (loaded === numberComplete) {
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callBack();
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}
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};
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};
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FileUpload = function (container) {
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var fileUpload = this,
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uploadForm,
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fileInput,
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settings = {
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namespace: defaultNamespace,
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uploadFormFilter: function (index) {
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return true;
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},
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fileInputFilter: function (index) {
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return true;
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},
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cssClass: defaultNamespace,
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dragDropSupport: true,
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dropZone: container,
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url: function (form) {
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return form.attr('action');
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},
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method: function (form) {
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return form.attr('method');
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},
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fieldName: function (input) {
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return input.attr('name');
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},
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formData: function (form) {
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return form.serializeArray();
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},
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multipart: true,
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multiFileRequest: false,
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withCredentials: false,
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forceIframeUpload: false
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},
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documentListeners = {},
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dropZoneListeners = {},
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protocolRegExp = /^http(s)?:\/\//,
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optionsReference,
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isXHRUploadCapable = function () {
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return typeof XMLHttpRequest !== undef && typeof File !== undef && (
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!settings.multipart || typeof FormData !== undef || typeof FileReader !== undef
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);
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},
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initEventHandlers = function () {
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if (settings.dragDropSupport) {
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if (typeof settings.onDocumentDragEnter === func) {
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documentListeners['dragenter.' + settings.namespace] = function (e) {
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settings.onDocumentDragEnter(e);
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};
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}
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if (typeof settings.onDocumentDragLeave === func) {
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documentListeners['dragleave.' + settings.namespace] = function (e) {
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settings.onDocumentDragLeave(e);
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};
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}
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documentListeners['dragover.' + settings.namespace] = fileUpload.onDocumentDragOver;
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documentListeners['drop.' + settings.namespace] = fileUpload.onDocumentDrop;
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$(document).bind(documentListeners);
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if (typeof settings.onDragEnter === func) {
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dropZoneListeners['dragenter.' + settings.namespace] = function (e) {
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settings.onDragEnter(e);
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};
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}
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if (typeof settings.onDragLeave === func) {
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dropZoneListeners['dragleave.' + settings.namespace] = function (e) {
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settings.onDragLeave(e);
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};
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}
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dropZoneListeners['dragover.' + settings.namespace] = fileUpload.onDragOver;
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dropZoneListeners['drop.' + settings.namespace] = fileUpload.onDrop;
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settings.dropZone.bind(dropZoneListeners);
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}
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fileInput.bind('change.' + settings.namespace, fileUpload.onChange);
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},
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removeEventHandlers = function () {
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$.each(documentListeners, function (key, value) {
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$(document).unbind(key, value);
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});
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$.each(dropZoneListeners, function (key, value) {
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settings.dropZone.unbind(key, value);
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});
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fileInput.unbind('change.' + settings.namespace);
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},
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initUploadEventHandlers = function (files, index, xhr, settings) {
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if (typeof settings.onProgress === func) {
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xhr.upload.onprogress = function (e) {
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settings.onProgress(e, files, index, xhr, settings);
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};
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}
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if (typeof settings.onLoad === func) {
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xhr.onload = function (e) {
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settings.onLoad(e, files, index, xhr, settings);
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};
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}
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if (typeof settings.onAbort === func) {
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xhr.onabort = function (e) {
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settings.onAbort(e, files, index, xhr, settings);
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};
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}
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if (typeof settings.onError === func) {
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xhr.onerror = function (e) {
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settings.onError(e, files, index, xhr, settings);
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};
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}
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},
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getUrl = function (settings) {
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if (typeof settings.url === func) {
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return settings.url(settings.uploadForm || uploadForm);
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}
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return settings.url;
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},
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getMethod = function (settings) {
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if (typeof settings.method === func) {
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return settings.method(settings.uploadForm || uploadForm);
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}
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return settings.method;
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},
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getFieldName = function (settings) {
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if (typeof settings.fieldName === func) {
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return settings.fieldName(settings.fileInput || fileInput);
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}
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return settings.fieldName;
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},
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getFormData = function (settings) {
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var formData;
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if (typeof settings.formData === func) {
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return settings.formData(settings.uploadForm || uploadForm);
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} else if ($.isArray(settings.formData)) {
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return settings.formData;
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} else if (settings.formData) {
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formData = [];
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$.each(settings.formData, function (name, value) {
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formData.push({name: name, value: value});
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});
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return formData;
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}
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return [];
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},
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isSameDomain = function (url) {
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if (protocolRegExp.test(url)) {
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var host = location.host,
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indexStart = location.protocol.length + 2,
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index = url.indexOf(host, indexStart),
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pathIndex = index + host.length;
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if ((index === indexStart || index === url.indexOf('@', indexStart) + 1) &&
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(url.length === pathIndex || $.inArray(url.charAt(pathIndex), ['/', '?', '#']) !== -1)) {
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return true;
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}
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return false;
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}
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return true;
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},
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nonMultipartUpload = function (file, xhr, sameDomain) {
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if (sameDomain) {
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xhr.setRequestHeader('X-File-Name', unescape(encodeURIComponent(file.name)));
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}
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xhr.setRequestHeader('Content-Type', file.type);
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xhr.send(file);
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},
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formDataUpload = function (files, xhr, settings) {
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var formData = new FormData(),
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i;
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$.each(getFormData(settings), function (index, field) {
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formData.append(field.name, field.value);
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});
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for (i = 0; i < files.length; i += 1) {
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formData.append(getFieldName(settings), files[i]);
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}
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xhr.send(formData);
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},
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loadFileContent = function (file, callBack) {
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var fileReader = new FileReader();
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fileReader.onload = function (e) {
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file.content = e.target.result;
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callBack();
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};
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fileReader.readAsBinaryString(file);
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},
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buildMultiPartFormData = function (boundary, files, filesFieldName, fields) {
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var doubleDash = '--',
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crlf = '\r\n',
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formData = '';
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$.each(fields, function (index, field) {
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formData += doubleDash + boundary + crlf +
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'Content-Disposition: form-data; name="' +
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unescape(encodeURIComponent(field.name)) +
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'"' + crlf + crlf +
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unescape(encodeURIComponent(field.value)) + crlf;
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});
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$.each(files, function (index, file) {
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formData += doubleDash + boundary + crlf +
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'Content-Disposition: form-data; name="' +
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unescape(encodeURIComponent(filesFieldName)) +
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'"; filename="' + unescape(encodeURIComponent(file.name)) + '"' + crlf +
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'Content-Type: ' + file.type + crlf + crlf +
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file.content + crlf;
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});
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formData += doubleDash + boundary + doubleDash + crlf;
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return formData;
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},
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fileReaderUpload = function (files, xhr, settings) {
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var boundary = '----MultiPartFormBoundary' + (new Date()).getTime(),
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loader,
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i;
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xhr.setRequestHeader('Content-Type', 'multipart/form-data; boundary=' + boundary);
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loader = new MultiLoader(function () {
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xhr.sendAsBinary(buildMultiPartFormData(
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boundary,
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files,
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getFieldName(settings),
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getFormData(settings)
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));
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}, files.length);
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for (i = 0; i < files.length; i += 1) {
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loadFileContent(files[i], loader.complete);
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}
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},
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upload = function (files, index, xhr, settings) {
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var url = getUrl(settings),
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sameDomain = isSameDomain(url),
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filesToUpload;
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initUploadEventHandlers(files, index, xhr, settings);
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xhr.open(getMethod(settings), url, true);
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if (sameDomain) {
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xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
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} else if (settings.withCredentials) {
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xhr.withCredentials = true;
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}
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if (!settings.multipart) {
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nonMultipartUpload(files[index], xhr, sameDomain);
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} else {
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if (typeof index === num) {
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filesToUpload = [files[index]];
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} else {
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filesToUpload = files;
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}
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if (typeof FormData !== undef) {
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formDataUpload(filesToUpload, xhr, settings);
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} else if (typeof FileReader !== undef) {
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fileReaderUpload(filesToUpload, xhr, settings);
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} else {
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$.error('Browser does neither support FormData nor FileReader interface');
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}
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}
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},
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handleUpload = function (event, files, input, form, index) {
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var xhr = new XMLHttpRequest(),
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uploadSettings = $.extend({}, settings);
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uploadSettings.fileInput = input;
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uploadSettings.uploadForm = form;
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if (typeof uploadSettings.initUpload === func) {
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uploadSettings.initUpload(
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event,
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files,
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index,
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xhr,
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uploadSettings,
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function () {
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upload(files, index, xhr, uploadSettings);
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}
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);
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} else {
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upload(files, index, xhr, uploadSettings);
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}
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},
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handleFiles = function (event, files, input, form) {
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var i;
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if (settings.multiFileRequest) {
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handleUpload(event, files, input, form);
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} else {
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for (i = 0; i < files.length; i += 1) {
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handleUpload(event, files, input, form, i);
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}
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}
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},
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legacyUploadFormDataInit = function (input, form, settings) {
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var formData = getFormData(settings);
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form.find(':input').not(':disabled')
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.attr('disabled', true)
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.addClass(settings.namespace + '_disabled');
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$.each(formData, function (index, field) {
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$('<input type="hidden"/>')
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.attr('name', field.name)
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.val(field.value)
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.addClass(settings.namespace + '_form_data')
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.appendTo(form);
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});
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input
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.attr('name', getFieldName(settings))
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.appendTo(form);
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},
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legacyUploadFormDataReset = function (input, form, settings) {
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input.detach();
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form.find('.' + settings.namespace + '_disabled')
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.removeAttr('disabled')
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.removeClass(settings.namespace + '_disabled');
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form.find('.' + settings.namespace + '_form_data').remove();
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},
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legacyUpload = function (input, form, iframe, settings) {
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var originalAction = form.attr('action'),
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originalMethod = form.attr('method'),
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originalTarget = form.attr('target');
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iframe
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.unbind('abort')
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.bind('abort', function (e) {
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iframe.readyState = 0;
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// javascript:false as iframe src prevents warning popups on HTTPS in IE6
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// concat is used here to prevent the "Script URL" JSLint error:
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iframe.unbind('load').attr('src', 'javascript'.concat(':false;'));
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if (typeof settings.onAbort === func) {
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settings.onAbort(e, [{name: input.val(), type: null, size: null}], 0, iframe, settings);
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}
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})
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.unbind('load')
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.bind('load', function (e) {
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iframe.readyState = 4;
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if (typeof settings.onLoad === func) {
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settings.onLoad(e, [{name: input.val(), type: null, size: null}], 0, iframe, settings);
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}
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// Fix for IE endless progress bar activity bug (happens on form submits to iframe targets):
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$('<iframe src="javascript:false;" style="display:none"></iframe>').appendTo(form).remove();
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});
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form
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.attr('action', getUrl(settings))
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.attr('method', getMethod(settings))
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.attr('target', iframe.attr('name'));
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legacyUploadFormDataInit(input, form, settings);
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iframe.readyState = 2;
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form.get(0).submit();
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legacyUploadFormDataReset(input, form, settings);
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form
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.attr('action', originalAction)
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.attr('method', originalMethod)
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.attr('target', originalTarget);
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},
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handleLegacyUpload = function (event, input, form) {
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// javascript:false as iframe src prevents warning popups on HTTPS in IE6:
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var iframe = $('<iframe src="javascript:false;" style="display:none" name="iframe_' +
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settings.namespace + '_' + (new Date()).getTime() + '"></iframe>'),
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uploadSettings = $.extend({}, settings);
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uploadSettings.fileInput = input;
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uploadSettings.uploadForm = form;
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iframe.readyState = 0;
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iframe.abort = function () {
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iframe.trigger('abort');
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};
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iframe.bind('load', function () {
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iframe.unbind('load');
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if (typeof uploadSettings.initUpload === func) {
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uploadSettings.initUpload(
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event,
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[{name: input.val(), type: null, size: null}],
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0,
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iframe,
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uploadSettings,
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function () {
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legacyUpload(input, form, iframe, uploadSettings);
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}
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);
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} else {
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legacyUpload(input, form, iframe, uploadSettings);
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}
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}).appendTo(form);
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},
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initUploadForm = function () {
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uploadForm = (container.is('form') ? container : container.find('form'))
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.filter(settings.uploadFormFilter);
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},
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initFileInput = function () {
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fileInput = uploadForm.find('input:file')
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.filter(settings.fileInputFilter);
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},
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replaceFileInput = function (input) {
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var inputClone = input.clone(true);
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$('<form/>').append(inputClone).get(0).reset();
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input.after(inputClone).detach();
|
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initFileInput();
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};
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|
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this.onDocumentDragOver = function (e) {
|
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if (typeof settings.onDocumentDragOver === func &&
|
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settings.onDocumentDragOver(e) === false) {
|
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return false;
|
|
}
|
|
e.preventDefault();
|
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};
|
|
|
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this.onDocumentDrop = function (e) {
|
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if (typeof settings.onDocumentDrop === func &&
|
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settings.onDocumentDrop(e) === false) {
|
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return false;
|
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}
|
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e.preventDefault();
|
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};
|
|
|
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this.onDragOver = function (e) {
|
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if (typeof settings.onDragOver === func &&
|
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settings.onDragOver(e) === false) {
|
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return false;
|
|
}
|
|
var dataTransfer = e.originalEvent.dataTransfer;
|
|
if (dataTransfer) {
|
|
dataTransfer.dropEffect = dataTransfer.effectAllowed = 'copy';
|
|
}
|
|
e.preventDefault();
|
|
};
|
|
|
|
this.onDrop = function (e) {
|
|
if (typeof settings.onDrop === func &&
|
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settings.onDrop(e) === false) {
|
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return false;
|
|
}
|
|
var dataTransfer = e.originalEvent.dataTransfer;
|
|
if (dataTransfer && dataTransfer.files && isXHRUploadCapable()) {
|
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handleFiles(e, dataTransfer.files);
|
|
}
|
|
e.preventDefault();
|
|
};
|
|
|
|
this.onChange = function (e) {
|
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if (typeof settings.onChange === func &&
|
|
settings.onChange(e) === false) {
|
|
return false;
|
|
}
|
|
var input = $(e.target),
|
|
form = $(e.target.form);
|
|
if (form.length === 1) {
|
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input.data(defaultNamespace + '_form', form);
|
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replaceFileInput(input);
|
|
} else {
|
|
form = input.data(defaultNamespace + '_form');
|
|
}
|
|
if (!settings.forceIframeUpload && e.target.files && isXHRUploadCapable()) {
|
|
handleFiles(e, e.target.files, input, form);
|
|
} else {
|
|
handleLegacyUpload(e, input, form);
|
|
}
|
|
};
|
|
|
|
this.init = function (options) {
|
|
if (options) {
|
|
$.extend(settings, options);
|
|
optionsReference = options;
|
|
}
|
|
initUploadForm();
|
|
initFileInput();
|
|
if (container.data(settings.namespace)) {
|
|
$.error('FileUpload with namespace "' + settings.namespace + '" already assigned to this element');
|
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return;
|
|
}
|
|
container
|
|
.data(settings.namespace, fileUpload)
|
|
.addClass(settings.cssClass);
|
|
settings.dropZone.not(container).addClass(settings.cssClass);
|
|
initEventHandlers();
|
|
};
|
|
|
|
this.options = function (options) {
|
|
var oldCssClass,
|
|
oldDropZone,
|
|
uploadFormFilterUpdate,
|
|
fileInputFilterUpdate;
|
|
if (typeof options === undef) {
|
|
return $.extend({}, settings);
|
|
}
|
|
if (optionsReference) {
|
|
$.extend(optionsReference, options);
|
|
}
|
|
removeEventHandlers();
|
|
$.each(options, function (name, value) {
|
|
switch (name) {
|
|
case 'namespace':
|
|
$.error('The FileUpload namespace cannot be updated.');
|
|
return;
|
|
case 'uploadFormFilter':
|
|
uploadFormFilterUpdate = true;
|
|
fileInputFilterUpdate = true;
|
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break;
|
|
case 'fileInputFilter':
|
|
fileInputFilterUpdate = true;
|
|
break;
|
|
case 'cssClass':
|
|
oldCssClass = settings.cssClass;
|
|
break;
|
|
case 'dropZone':
|
|
oldDropZone = settings.dropZone;
|
|
break;
|
|
}
|
|
settings[name] = value;
|
|
});
|
|
if (uploadFormFilterUpdate) {
|
|
initUploadForm();
|
|
}
|
|
if (fileInputFilterUpdate) {
|
|
initFileInput();
|
|
}
|
|
if (typeof oldCssClass !== undef) {
|
|
container
|
|
.removeClass(oldCssClass)
|
|
.addClass(settings.cssClass);
|
|
(oldDropZone ? oldDropZone : settings.dropZone).not(container)
|
|
.removeClass(oldCssClass);
|
|
settings.dropZone.not(container).addClass(settings.cssClass);
|
|
} else if (oldDropZone) {
|
|
oldDropZone.not(container).removeClass(settings.cssClass);
|
|
settings.dropZone.not(container).addClass(settings.cssClass);
|
|
}
|
|
initEventHandlers();
|
|
};
|
|
|
|
this.option = function (name, value) {
|
|
var options;
|
|
if (typeof value === undef) {
|
|
return settings[name];
|
|
}
|
|
options = {};
|
|
options[name] = value;
|
|
fileUpload.options(options);
|
|
};
|
|
|
|
this.destroy = function () {
|
|
removeEventHandlers();
|
|
container
|
|
.removeData(settings.namespace)
|
|
.removeClass(settings.cssClass);
|
|
settings.dropZone.not(container).removeClass(settings.cssClass);
|
|
};
|
|
};
|
|
|
|
methods = {
|
|
init : function (options) {
|
|
return this.each(function () {
|
|
(new FileUpload($(this))).init(options);
|
|
});
|
|
},
|
|
|
|
option: function (option, value, namespace) {
|
|
namespace = namespace ? namespace : defaultNamespace;
|
|
var fileUpload = $(this).data(namespace);
|
|
if (fileUpload) {
|
|
if (typeof option === 'string') {
|
|
return fileUpload.option(option, value);
|
|
}
|
|
return fileUpload.options(option);
|
|
} else {
|
|
$.error('No FileUpload with namespace "' + namespace + '" assigned to this element');
|
|
}
|
|
},
|
|
|
|
destroy : function (namespace) {
|
|
namespace = namespace ? namespace : defaultNamespace;
|
|
return this.each(function () {
|
|
var fileUpload = $(this).data(namespace);
|
|
if (fileUpload) {
|
|
fileUpload.destroy();
|
|
} else {
|
|
$.error('No FileUpload with namespace "' + namespace + '" assigned to this element');
|
|
}
|
|
});
|
|
|
|
}
|
|
};
|
|
|
|
$.fn.fileUpload = function (method) {
|
|
if (methods[method]) {
|
|
return methods[method].apply(this, Array.prototype.slice.call(arguments, 1));
|
|
} else if (typeof method === 'object' || !method) {
|
|
return methods.init.apply(this, arguments);
|
|
} else {
|
|
$.error('Method ' + method + ' does not exist on jQuery.fileUpload');
|
|
}
|
|
};
|
|
|
|
}(jQuery)); |