--- /dev/null
+/*
+ * jQuery File Upload File Processing Plugin 1.0
+ * https://github.com/blueimp/jQuery-File-Upload
+ *
+ * Copyright 2012, Sebastian Tschan
+ * https://blueimp.net
+ *
+ * Licensed under the MIT license:
+ * http://www.opensource.org/licenses/MIT
+ */
+
+/*jslint nomen: true, unparam: true, regexp: true */
+/*global define, window, document */
+
+(function (factory) {
+ 'use strict';
+ if (typeof define === 'function' && define.amd) {
+ // Register as an anonymous AMD module:
+ define([
+ 'jquery',
+ 'load-image',
+ 'canvas-to-blob',
+ './jquery.fileupload'
+ ], factory);
+ } else {
+ // Browser globals:
+ factory(
+ window.jQuery,
+ window.loadImage
+ );
+ }
+}(function ($, loadImage) {
+ 'use strict';
+
+ // The File Upload IP version extends the basic fileupload widget
+ // with file processing functionality:
+ $.widget('blueimpFP.fileupload', $.blueimp.fileupload, {
+
+ options: {
+ // The list of file processing actions:
+ process: [
+ /*
+ {
+ action: 'load',
+ fileTypes: /^image\/(gif|jpeg|png)$/,
+ maxFileSize: 20000000 // 20MB
+ },
+ {
+ action: 'resize',
+ maxWidth: 1920,
+ maxHeight: 1200,
+ minWidth: 800,
+ minHeight: 600
+ },
+ {
+ action: 'save'
+ }
+ */
+ ],
+
+ // The add callback is invoked as soon as files are added to the
+ // fileupload widget (via file input selection, drag & drop or add
+ // API call). See the basic file upload widget for more information:
+ add: function (e, data) {
+ $(this).fileupload('process', data).done(function () {
+ data.submit();
+ });
+ }
+ },
+
+ processActions: {
+ // Loads the image given via data.files and data.index
+ // as canvas element.
+ // Accepts the options fileTypes (regular expression)
+ // and maxFileSize (integer) to limit the files to load:
+ load: function (data, options) {
+ var that = this,
+ file = data.files[data.index],
+ dfd = $.Deferred();
+ if (window.HTMLCanvasElement &&
+ window.HTMLCanvasElement.prototype.toBlob &&
+ ($.type(options.maxFileSize) !== 'number' ||
+ file.size < options.maxFileSize) &&
+ (!options.fileTypes ||
+ options.fileTypes.test(file.type))) {
+ loadImage(
+ file,
+ function (canvas) {
+ data.canvas = canvas;
+ dfd.resolveWith(that, [data]);
+ },
+ {canvas: true}
+ );
+ } else {
+ dfd.rejectWith(that, [data]);
+ }
+ return dfd.promise();
+ },
+ // Resizes the image given as data.canvas and updates
+ // data.canvas with the resized image.
+ // Accepts the options maxWidth, maxHeight, minWidth and
+ // minHeight to scale the given image:
+ resize: function (data, options) {
+ if (data.canvas) {
+ var canvas = loadImage.scale(data.canvas, options);
+ if (canvas.width !== data.canvas.width ||
+ canvas.height !== data.canvas.height) {
+ data.canvas = canvas;
+ data.processed = true;
+ }
+ }
+ return data;
+ },
+ // Saves the processed image given as data.canvas
+ // inplace at data.index of data.files:
+ save: function (data, options) {
+ // Do nothing if no processing has happened:
+ if (!data.canvas || !data.processed) {
+ return data;
+ }
+ var that = this,
+ file = data.files[data.index],
+ name = file.name,
+ dfd = $.Deferred(),
+ callback = function (blob) {
+ if (!blob.name) {
+ if (file.type === blob.type) {
+ blob.name = file.name;
+ } else if (file.name) {
+ blob.name = file.name.replace(
+ /\..+$/,
+ '.' + blob.type.substr(6)
+ );
+ }
+ }
+ // Store the created blob at the position
+ // of the original file in the files list:
+ data.files[data.index] = blob;
+ dfd.resolveWith(that, [data]);
+ };
+ // Use canvas.mozGetAsFile directly, to retain the filename, as
+ // Gecko doesn't support the filename option for FormData.append:
+ if (data.canvas.mozGetAsFile) {
+ callback(data.canvas.mozGetAsFile(
+ (/^image\/(jpeg|png)$/.test(file.type) && name) ||
+ ((name && name.replace(/\..+$/, '')) ||
+ 'blob') + '.png',
+ file.type
+ ));
+ } else {
+ data.canvas.toBlob(callback, file.type);
+ }
+ return dfd.promise();
+ }
+ },
+
+ // Resizes the file at the given index and stores the created blob at
+ // the original position of the files list, returns a Promise object:
+ _processFile: function (files, index, options) {
+ var that = this,
+ dfd = $.Deferred().resolveWith(that, [{
+ files: files,
+ index: index
+ }]),
+ chain = dfd.promise();
+ that._processing += 1;
+ $.each(options.process, function (i, settings) {
+ chain = chain.pipe(function (data) {
+ return that.processActions[settings.action]
+ .call(this, data, settings);
+ });
+ });
+ chain.always(function () {
+ that._processing -= 1;
+ if (that._processing === 0) {
+ that.element
+ .removeClass('fileupload-processing');
+ }
+ });
+ if (that._processing === 1) {
+ that.element.addClass('fileupload-processing');
+ }
+ return chain;
+ },
+
+ // Processes the files given as files property of the data parameter,
+ // returns a Promise object that allows to bind a done handler, which
+ // will be invoked after processing all files (inplace) is done:
+ process: function (data) {
+ var that = this,
+ options = $.extend({}, this.options, data);
+ if (options.process && options.process.length &&
+ this._isXHRUpload(options)) {
+ $.each(data.files, function (index, file) {
+ that._processingQueue = that._processingQueue.pipe(
+ function () {
+ var dfd = $.Deferred();
+ that._processFile(data.files, index, options)
+ .always(function () {
+ dfd.resolveWith(that);
+ });
+ return dfd.promise();
+ }
+ );
+ });
+ }
+ return this._processingQueue;
+ },
+
+ _create: function () {
+ $.blueimp.fileupload.prototype._create.call(this);
+ this._processing = 0;
+ this._processingQueue = $.Deferred().resolveWith(this)
+ .promise();
+ }
+
+ });
+
+}));
fnp / redakcja.git / blobdiff