bootstrap图片文件上传js

/*! * bootstrap-fileinput v4.4.9 * http://plugins.krajee.com/file-input * * Author: Kartik Visweswaran * Copyright: 2014 - 2018, Kartik Visweswaran, Krajee.com * * Licensed under the BSD 3-Clause * https://github.com/kartik-v/bootstrap-fileinput/blob/master/LICENSE.md */ (function (factory) { "use strict"; //noinspection JSUnresolvedVariable if (typeof define === 'function' && define.amd) { // jshint ignore:line // AMD. Register as an anonymous module. define(['jquery'], factory); // jshint ignore:line } else { // noinspection JSUnresolvedVariable if (typeof module === 'object' && module.exports) { // jshint ignore:line // Node/CommonJS // noinspection JSUnresolvedVariable module.exports = factory(require('jquery')); // jshint ignore:line } else { // Browser globals factory(window.jQuery); } } }(function ($) { "use strict"; $.fn.fileinputLocales = {}; $.fn.fileinputThemes = {}; String.prototype.setTokens = function (replacePairs) { var str = this.toString(), key, re; for (key in replacePairs) { if (replacePairs.hasOwnProperty(key)) { re = new RegExp("\{" + key + "\}", "g"); str = str.replace(re, replacePairs[key]); } } return str; }; var $h, FileInput; // fileinput helper object for all global variables and internal helper methods //noinspection JSUnresolvedVariable $h = { FRAMES: '.kv-preview-thumb', SORT_CSS: 'file-sortable', OBJECT_PARAMS: '<param name="controller" value="true" />\n' + '<param name="allowFullScreen" value="true" />\n' + '<param name="allowScriptAccess" value="always" />\n' + '<param name="autoPlay" value="false" />\n' + '<param name="autoStart" value="false" />\n' + '<param name="quality" value="high" />\n', DEFAULT_PREVIEW: '<div class="file-preview-other">\n' + '<span class="{previewFileIconClass}">{previewFileIcon}</span>\n' + '</div>', MODAL_ID: 'kvFileinputModal', MODAL_EVENTS: ['show', 'shown', 'hide', 'hidden', 'loaded'], objUrl: window.URL || window.webkitURL, compare: function (input, str, exact) { return input !== undefined && (exact ? input === str : input.match(str)); }, isIE: function (ver) { // check for IE versions < 11 if (navigator.appName !== 'Microsoft Internet Explorer') { return false; } if (ver === 10) { return new RegExp('msie\\s' + ver, 'i').test(navigator.userAgent); } var div = document.createElement("div"), status; div.innerHTML = "<!--[if IE " + ver + "]> <i></i> <![endif]-->"; status = div.getElementsByTagName("i").length; document.body.appendChild(div); div.parentNode.removeChild(div); return status; }, canAssignFilesToInput: function () { var input = document.createElement('input'); try { input.type = "file"; input.files = null; return true; } catch (err) { return false; } }, getDragDropFolders: function (items) { var i, item, len = items.length, folders = 0; if (len > 0 && items[0].webkitGetAsEntry()) { for (i = 0; i < len; i++) { item = items[i].webkitGetAsEntry(); if (item && item.isDirectory) { folders++; } } } return folders; }, initModal: function ($modal) { var $body = $('body'); if ($body.length) { $modal.appendTo($body); } }, isEmpty: function (value, trim) { return value === undefined || value === null || value.length === 0 || (trim && $.trim(value) === ''); }, isArray: function (a) { return Array.isArray(a) || Object.prototype.toString.call(a) === '[object Array]'; }, ifSet: function (needle, haystack, def) { def = def || ''; return (haystack && typeof haystack === 'object' && needle in haystack) ? haystack[needle] : def; }, cleanArray: function (arr) { if (!(arr instanceof Array)) { arr = []; } return arr.filter(function (e) { return (e !== undefined && e !== null); }); }, spliceArray: function (arr, index, reverseOrder) { var i, j = 0, out = [], newArr; if (!(arr instanceof Array)) { return []; } newArr = $.extend(true, [], arr); if (reverseOrder) { newArr.reverse(); } for (i = 0; i < newArr.length; i++) { if (i !== index) { out[j] = newArr[i]; j++; } } if (reverseOrder) { out.reverse(); } return out; }, getNum: function (num, def) { def = def || 0; if (typeof num === "number") { return num; } if (typeof num === "string") { num = parseFloat(num); } return isNaN(num) ? def : num; }, hasFileAPISupport: function () { return !!(window.File && window.FileReader); }, hasDragDropSupport: function () { var div = document.createElement('div'); /** @namespace div.draggable */ /** @namespace div.ondragstart */ /** @namespace div.ondrop */ return !$h.isIE(9) && (div.draggable !== undefined || (div.ondragstart !== undefined && div.ondrop !== undefined)); }, hasFileUploadSupport: function () { return $h.hasFileAPISupport() && window.FormData; }, hasBlobSupport: function () { try { return !!window.Blob && Boolean(new Blob()); } catch (e) { return false; } }, hasArrayBufferViewSupport: function () { try { return new Blob([new Uint8Array(100)]).size === 100; } catch (e) { return false; } }, dataURI2Blob: function (dataURI) { //noinspection JSUnresolvedVariable var BlobBuilder = window.BlobBuilder || window.WebKitBlobBuilder || window.MozBlobBuilder || window.MSBlobBuilder, canBlob = $h.hasBlobSupport(), byteStr, arrayBuffer, intArray, i, mimeStr, bb, canProceed = (canBlob || BlobBuilder) && window.atob && window.ArrayBuffer && window.Uint8Array; if (!canProceed) { return null; } if (dataURI.split(',')[0].indexOf('base64') >= 0) { byteStr = atob(dataURI.split(',')[1]); } else { byteStr = decodeURIComponent(dataURI.split(',')[1]); } arrayBuffer = new ArrayBuffer(byteStr.length); intArray = new Uint8Array(arrayBuffer); for (i = 0; i < byteStr.length; i += 1) { intArray[i] = byteStr.charCodeAt(i); } mimeStr = dataURI.split(',')[0].split(':')[1].split(';')[0]; if (canBlob) { return new Blob([$h.hasArrayBufferViewSupport() ? intArray : arrayBuffer], {type: mimeStr}); } bb = new BlobBuilder(); bb.append(arrayBuffer); return bb.getBlob(mimeStr); }, arrayBuffer2Stri