651 lines
26 KiB
JavaScript
Executable File
651 lines
26 KiB
JavaScript
Executable File
/*
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* jQuery File Upload User Interface Plugin 5.0.20
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* https://github.com/blueimp/jQuery-File-Upload
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*
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* Copyright 2010, Sebastian Tschan
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* https://blueimp.net
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*
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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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/*jslint white: true, nomen: true, unparam: true, regexp: true */
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/*global window, document, URL, webkitURL, FileReader, jQuery */
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(function ($) {
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'use strict';
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// The UI version extends the basic fileupload widget and adds
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// a complete user interface based on the given upload/download
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// templates.
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$.widget('blueimpUI.fileupload', $.blueimp.fileupload, {
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options: {
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// By default, files added to the widget are uploaded as soon
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// as the user clicks on the start buttons. To enable automatic
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// uploads, set the following option to true:
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autoUpload: false,
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// The following option limits the number of files that are
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// allowed to be uploaded using this widget:
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maxNumberOfFiles: undefined,
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// The maximum allowed file size:
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maxFileSize: undefined,
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// The minimum allowed file size:
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minFileSize: 1,
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// The regular expression for allowed file types, matches
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// against either file type or file name:
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acceptFileTypes: /.+$/i,
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// The regular expression to define for which files a preview
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// image is shown, matched against the file type:
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previewFileTypes: /^image\/(gif|jpeg|png)$/,
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// The maximum width of the preview images:
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previewMaxWidth: 80,
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// The maximum height of the preview images:
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previewMaxHeight: 80,
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// By default, preview images are displayed as canvas elements
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// if supported by the browser. Set the following option to false
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// to always display preview images as img elements:
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previewAsCanvas: true,
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// The file upload template that is given as first argument to the
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// jQuery.tmpl method to render the file uploads:
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uploadTemplate: $('#template-upload'),
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// The file download template, that is given as first argument to the
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// jQuery.tmpl method to render the file downloads:
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downloadTemplate: $('#template-download'),
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// The expected data type of the upload response, sets the dataType
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// option of the $.ajax upload requests:
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dataType: 'json',
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// The add callback is invoked as soon as files are added to the fileupload
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// widget (via file input selection, drag & drop or add API call).
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// See the basic file upload widget for more information:
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add: function (e, data) {
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var that = $(this).data('fileupload');
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that._adjustMaxNumberOfFiles(-data.files.length);
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data.isAdjusted = true;
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data.isValidated = that._validate(data.files);
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data.context = that._renderUpload(data.files)
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.appendTo($(this).find('.files')).fadeIn(function () {
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// Fix for IE7 and lower:
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$(this).show();
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}).data('data', data);
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if ((that.options.autoUpload || data.autoUpload) &&
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data.isValidated) {
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data.jqXHR = data.submit();
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}
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},
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// Callback for the start of each file upload request:
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send: function (e, data) {
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if (!data.isValidated) {
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var that = $(this).data('fileupload');
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if (!data.isAdjusted) {
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that._adjustMaxNumberOfFiles(-data.files.length);
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}
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if (!that._validate(data.files)) {
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return false;
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}
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}
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if (data.context && data.dataType &&
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data.dataType.substr(0, 6) === 'iframe') {
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// Iframe Transport does not support progress events.
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// In lack of an indeterminate progress bar, we set
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// the progress to 100%, showing the full animated bar:
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data.context.find('.ui-progressbar').progressbar(
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'value',
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parseInt(100, 10)
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);
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}
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},
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// Callback for successful uploads:
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done: function (e, data) {
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var that = $(this).data('fileupload');
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if (data.context) {
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data.context.each(function (index) {
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var file = ($.isArray(data.result) &&
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data.result[index]) || {error: 'emptyResult'};
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if (file.error) {
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that._adjustMaxNumberOfFiles(1);
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}
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$(this).fadeOut(function () {
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that._renderDownload([file])
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.css('display', 'none')
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.replaceAll(this)
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.fadeIn(function () {
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// Fix for IE7 and lower:
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$(this).show();
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});
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});
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});
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} else {
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that._renderDownload(data.result)
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.css('display', 'none')
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.appendTo($(this).find('.files'))
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.fadeIn(function () {
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// Fix for IE7 and lower:
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$(this).show();
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});
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}
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},
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// Callback for failed (abort or error) uploads:
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fail: function (e, data) {
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var that = $(this).data('fileupload');
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that._adjustMaxNumberOfFiles(data.files.length);
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if (data.context) {
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data.context.each(function (index) {
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$(this).fadeOut(function () {
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if (data.errorThrown !== 'abort') {
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var file = data.files[index];
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file.error = file.error || data.errorThrown ||
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true;
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that._renderDownload([file])
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.css('display', 'none')
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.replaceAll(this)
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.fadeIn(function () {
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// Fix for IE7 and lower:
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$(this).show();
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});
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} else {
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data.context.remove();
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}
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});
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});
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} else if (data.errorThrown !== 'abort') {
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that._adjustMaxNumberOfFiles(-data.files.length);
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data.context = that._renderUpload(data.files)
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.css('display', 'none')
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.appendTo($(this).find('.files'))
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.fadeIn(function () {
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// Fix for IE7 and lower:
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$(this).show();
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}).data('data', data);
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}
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},
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// Callback for upload progress events:
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progress: function (e, data) {
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if (data.context) {
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data.context.find('.ui-progressbar').progressbar(
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'value',
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parseInt(data.loaded / data.total * 100, 10)
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);
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}
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},
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// Callback for global upload progress events:
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progressall: function (e, data) {
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$(this).find('.fileupload-progressbar').progressbar(
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'value',
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parseInt(data.loaded / data.total * 100, 10)
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);
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},
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// Callback for uploads start, equivalent to the global ajaxStart event:
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start: function () {
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$(this).find('.fileupload-progressbar')
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.progressbar('value', 0).fadeIn();
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},
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// Callback for uploads stop, equivalent to the global ajaxStop event:
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stop: function () {
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$(this).find('.fileupload-progressbar').fadeOut();
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},
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// Callback for file deletion:
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destroy: function (e, data) {
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var that = $(this).data('fileupload');
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if (data.url) {
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$.ajax(data)
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.success(function () {
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that._adjustMaxNumberOfFiles(1);
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$(this).fadeOut(function () {
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$(this).remove();
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});
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});
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} else {
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that._adjustMaxNumberOfFiles(1);
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data.context.fadeOut(function () {
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$(this).remove();
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});
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}
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}
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},
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// Scales the given image (img HTML element)
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// using the given options.
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// Returns a canvas object if the canvas option is true
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// and the browser supports canvas, else the scaled image:
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_scaleImage: function (img, options) {
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options = options || {};
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var canvas = document.createElement('canvas'),
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scale = Math.min(
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(options.maxWidth || img.width) / img.width,
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(options.maxHeight || img.height) / img.height
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);
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if (scale >= 1) {
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scale = Math.max(
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(options.minWidth || img.width) / img.width,
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(options.minHeight || img.height) / img.height
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);
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}
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img.width = parseInt(img.width * scale, 10);
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img.height = parseInt(img.height * scale, 10);
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if (!options.canvas || !canvas.getContext) {
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return img;
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}
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canvas.width = img.width;
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canvas.height = img.height;
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canvas.getContext('2d')
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.drawImage(img, 0, 0, img.width, img.height);
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return canvas;
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},
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_createObjectURL: function (file) {
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var undef = 'undefined',
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urlAPI = (typeof window.createObjectURL !== undef && window) ||
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(typeof URL !== undef && URL) ||
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(typeof webkitURL !== undef && webkitURL);
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return urlAPI ? urlAPI.createObjectURL(file) : false;
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},
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_revokeObjectURL: function (url) {
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var undef = 'undefined',
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urlAPI = (typeof window.revokeObjectURL !== undef && window) ||
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(typeof URL !== undef && URL) ||
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(typeof webkitURL !== undef && webkitURL);
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return urlAPI ? urlAPI.revokeObjectURL(url) : false;
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},
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// Loads a given File object via FileReader interface,
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// invokes the callback with a data url:
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_loadFile: function (file, callback) {
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if (typeof FileReader !== 'undefined' &&
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FileReader.prototype.readAsDataURL) {
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var fileReader = new FileReader();
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fileReader.onload = function (e) {
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callback(e.target.result);
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};
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fileReader.readAsDataURL(file);
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return true;
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}
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return false;
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},
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// Loads an image for a given File object.
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// Invokes the callback with an img or optional canvas
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// element (if supported by the browser) as parameter:
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_loadImage: function (file, callback, options) {
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var that = this,
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url,
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img;
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if (!options || !options.fileTypes ||
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options.fileTypes.test(file.type)) {
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url = this._createObjectURL(file);
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img = $('<img>').bind('load', function () {
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$(this).unbind('load');
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that._revokeObjectURL(url);
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callback(that._scaleImage(img[0], options));
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});
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if (url) {
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img.prop('src', url);
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return true;
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} else {
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return this._loadFile(file, function (url) {
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img.prop('src', url);
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});
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}
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}
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return false;
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},
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// Link handler, that allows to download files
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// by drag & drop of the links to the desktop:
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_enableDragToDesktop: function () {
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var link = $(this),
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url = link.prop('href'),
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name = decodeURIComponent(url.split('/').pop())
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.replace(/:/g, '-'),
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type = 'application/octet-stream';
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link.bind('dragstart', function (e) {
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try {
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e.originalEvent.dataTransfer.setData(
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'DownloadURL',
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[type, name, url].join(':')
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);
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} catch (err) {}
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});
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},
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_adjustMaxNumberOfFiles: function (operand) {
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if (typeof this.options.maxNumberOfFiles === 'number') {
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this.options.maxNumberOfFiles += operand;
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if (this.options.maxNumberOfFiles < 1) {
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this._disableFileInputButton();
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} else {
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this._enableFileInputButton();
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}
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}
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},
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_formatFileSize: function (file) {
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if (typeof file.size !== 'number') {
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return '';
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}
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if (file.size >= 1000000000) {
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return (file.size / 1000000000).toFixed(2) + ' GB';
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}
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if (file.size >= 1000000) {
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return (file.size / 1000000).toFixed(2) + ' MB';
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}
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return (file.size / 1000).toFixed(2) + ' KB';
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},
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_hasError: function (file) {
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if (file.error) {
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return file.error;
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}
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// The number of added files is subtracted from
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// maxNumberOfFiles before validation, so we check if
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// maxNumberOfFiles is below 0 (instead of below 1):
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if (this.options.maxNumberOfFiles < 0) {
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return 'maxNumberOfFiles';
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}
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// Files are accepted if either the file type or the file name
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// matches against the acceptFileTypes regular expression, as
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// only browsers with support for the File API report the type:
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if (!(this.options.acceptFileTypes.test(file.type) ||
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this.options.acceptFileTypes.test(file.name))) {
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return 'acceptFileTypes';
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}
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if (this.options.maxFileSize &&
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file.size > this.options.maxFileSize) {
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return 'maxFileSize';
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}
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if (typeof file.size === 'number' &&
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file.size < this.options.minFileSize) {
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return 'minFileSize';
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}
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return null;
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},
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_validate: function (files) {
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var that = this,
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valid = !!files.length;
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$.each(files, function (index, file) {
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file.error = that._hasError(file);
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if (file.error) {
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valid = false;
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}
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});
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return valid;
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},
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_uploadTemplateHelper: function (file) {
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file.sizef = this._formatFileSize(file);
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return file;
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},
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_renderUploadTemplate: function (files) {
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var that = this;
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return $.tmpl(
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this.options.uploadTemplate,
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$.map(files, function (file) {
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return that._uploadTemplateHelper(file);
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})
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);
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},
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_renderUpload: function (files) {
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var that = this,
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options = this.options,
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tmpl = this._renderUploadTemplate(files),
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isValidated = this._validate(files);
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if (!(tmpl instanceof $)) {
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return $();
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}
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tmpl.css('display', 'none');
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// .slice(1).remove().end().first() removes all but the first
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// element and selects only the first for the jQuery collection:
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tmpl.find('.progress div').slice(
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isValidated ? 1 : 0
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).remove().end().first()
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.progressbar();
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tmpl.find('.start button').slice(
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this.options.autoUpload || !isValidated ? 0 : 1
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).remove().end().first()
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.button({
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text: false,
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icons: {primary: 'ui-icon-circle-arrow-e'}
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});
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tmpl.find('.cancel button').slice(1).remove().end().first()
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.button({
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text: false,
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icons: {primary: 'ui-icon-cancel'}
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});
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tmpl.find('.preview').each(function (index, node) {
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that._loadImage(
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files[index],
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function (img) {
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$(img).hide().appendTo(node).fadeIn();
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},
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{
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maxWidth: options.previewMaxWidth,
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maxHeight: options.previewMaxHeight,
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fileTypes: options.previewFileTypes,
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canvas: options.previewAsCanvas
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}
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);
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});
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return tmpl;
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},
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_downloadTemplateHelper: function (file) {
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file.sizef = this._formatFileSize(file);
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return file;
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},
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_renderDownloadTemplate: function (files) {
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var that = this;
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return $.tmpl(
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this.options.downloadTemplate,
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$.map(files, function (file) {
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return that._downloadTemplateHelper(file);
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})
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);
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},
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_renderDownload: function (files) {
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var tmpl = this._renderDownloadTemplate(files);
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if (!(tmpl instanceof $)) {
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return $();
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}
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tmpl.css('display', 'none');
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tmpl.find('.delete button').button({
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text: false,
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icons: {primary: 'ui-icon-trash'}
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});
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tmpl.find('a').each(this._enableDragToDesktop);
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return tmpl;
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},
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_startHandler: function (e) {
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e.preventDefault();
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var tmpl = $(this).closest('.template-upload'),
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data = tmpl.data('data');
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if (data && data.submit && !data.jqXHR) {
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data.jqXHR = data.submit();
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if (data.jqXHR) {
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$(this).fadeOut();
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}
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}
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},
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_cancelHandler: function (e) {
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e.preventDefault();
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var tmpl = $(this).closest('.template-upload'),
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data = tmpl.data('data') || {};
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if (!data.jqXHR) {
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data.errorThrown = 'abort';
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e.data.fileupload._trigger('fail', e, data);
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} else {
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data.jqXHR.abort();
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}
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},
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_deleteHandler: function (e) {
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e.preventDefault();
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var button = $(this);
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e.data.fileupload._trigger('destroy', e, {
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context: button.closest('.template-download'),
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url: button.attr('data-url'),
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type: button.attr('data-type'),
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dataType: e.data.fileupload.options.dataType
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});
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},
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_initEventHandlers: function () {
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$.blueimp.fileupload.prototype._initEventHandlers.call(this);
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var eventData = {fileupload: this};
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this.element.find('.files')
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.delegate(
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'.start button',
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'click.' + this.options.namespace,
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eventData,
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this._startHandler
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)
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.delegate(
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'.cancel button',
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'click.' + this.options.namespace,
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eventData,
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this._cancelHandler
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)
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.delegate(
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'.delete button',
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'click.' + this.options.namespace,
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eventData,
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this._deleteHandler
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);
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},
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_destroyEventHandlers: function () {
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this.element.find('.files')
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.undelegate('.start button', 'click.' + this.options.namespace)
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.undelegate('.cancel button', 'click.' + this.options.namespace)
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.undelegate('.delete button', 'click.' + this.options.namespace);
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$.blueimp.fileupload.prototype._destroyEventHandlers.call(this);
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},
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_initFileUploadButtonBar: function () {
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var fileUploadButtonBar = this.element.find('.fileupload-buttonbar'),
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filesList = this.element.find('.files'),
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ns = this.options.namespace;
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fileUploadButtonBar
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.addClass('ui-widget-header ui-corner-top');
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|
this.element.find('.fileinput-button').each(function () {
|
|
var fileInput = $(this).find('input:file').detach();
|
|
$(this).button({icons: {primary: 'ui-icon-plusthick'}})
|
|
.append(fileInput);
|
|
});
|
|
fileUploadButtonBar.find('.start')
|
|
.button({icons: {primary: 'ui-icon-circle-arrow-e'}})
|
|
.bind('click.' + ns, function (e) {
|
|
e.preventDefault();
|
|
filesList.find('.start button').click();
|
|
});
|
|
fileUploadButtonBar.find('.cancel')
|
|
.button({icons: {primary: 'ui-icon-cancel'}})
|
|
.bind('click.' + ns, function (e) {
|
|
e.preventDefault();
|
|
filesList.find('.cancel button').click();
|
|
});
|
|
fileUploadButtonBar.find('.delete')
|
|
.button({icons: {primary: 'ui-icon-trash'}})
|
|
.bind('click.' + ns, function (e) {
|
|
e.preventDefault();
|
|
filesList.find('.delete button').click();
|
|
});
|
|
},
|
|
|
|
_destroyFileUploadButtonBar: function () {
|
|
this.element.find('.fileupload-buttonbar')
|
|
.removeClass('ui-widget-header ui-corner-top');
|
|
this.element.find('.fileinput-button').each(function () {
|
|
var fileInput = $(this).find('input:file').detach();
|
|
$(this).button('destroy')
|
|
.append(fileInput);
|
|
});
|
|
this.element.find('.fileupload-buttonbar button')
|
|
.unbind('click.' + this.options.namespace)
|
|
.button('destroy');
|
|
},
|
|
|
|
_enableFileInputButton: function () {
|
|
this.element.find('.fileinput-button input:file:disabled')
|
|
.each(function () {
|
|
var fileInput = $(this),
|
|
button = fileInput.parent();
|
|
fileInput.detach().prop('disabled', false);
|
|
button.button('enable').append(fileInput);
|
|
});
|
|
},
|
|
|
|
_disableFileInputButton: function () {
|
|
this.element.find('.fileinput-button input:file:enabled')
|
|
.each(function () {
|
|
var fileInput = $(this),
|
|
button = fileInput.parent();
|
|
fileInput.detach().prop('disabled', true);
|
|
button.button('disable').append(fileInput);
|
|
});
|
|
},
|
|
|
|
_initTemplates: function () {
|
|
// Handle cases where the templates are defined
|
|
// after the widget library has been included:
|
|
if (this.options.uploadTemplate instanceof $ &&
|
|
!this.options.uploadTemplate.length) {
|
|
this.options.uploadTemplate = $(
|
|
this.options.uploadTemplate.selector
|
|
);
|
|
}
|
|
if (this.options.downloadTemplate instanceof $ &&
|
|
!this.options.downloadTemplate.length) {
|
|
this.options.downloadTemplate = $(
|
|
this.options.downloadTemplate.selector
|
|
);
|
|
}
|
|
},
|
|
|
|
_create: function () {
|
|
$.blueimp.fileupload.prototype._create.call(this);
|
|
this._initTemplates();
|
|
this.element
|
|
.addClass('ui-widget');
|
|
this._initFileUploadButtonBar();
|
|
this.element.find('.fileupload-content')
|
|
.addClass('ui-widget-content ui-corner-bottom');
|
|
this.element.find('.fileupload-progressbar')
|
|
.hide().progressbar();
|
|
},
|
|
|
|
destroy: function () {
|
|
this.element.find('.fileupload-progressbar')
|
|
.progressbar('destroy');
|
|
this.element.find('.fileupload-content')
|
|
.removeClass('ui-widget-content ui-corner-bottom');
|
|
this._destroyFileUploadButtonBar();
|
|
this.element.removeClass('ui-widget');
|
|
$.blueimp.fileupload.prototype.destroy.call(this);
|
|
},
|
|
|
|
enable: function () {
|
|
$.blueimp.fileupload.prototype.enable.call(this);
|
|
this.element.find(':ui-button').not('.fileinput-button')
|
|
.button('enable');
|
|
this._enableFileInputButton();
|
|
},
|
|
|
|
disable: function () {
|
|
this.element.find(':ui-button').not('.fileinput-button')
|
|
.button('disable');
|
|
this._disableFileInputButton();
|
|
$.blueimp.fileupload.prototype.disable.call(this);
|
|
}
|
|
|
|
});
|
|
|
|
}(jQuery)); |