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/*
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 * jQuery File Upload Audio Preview Plugin
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 * https://github.com/blueimp/jQuery-File-Upload
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 *
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 * Copyright 2013, 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://www.opensource.org/licenses/MIT
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 */
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/* jshint nomen:false */
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/* global define, require, window, document */
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(function (factory) {
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    'use strict';
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    if (typeof define === 'function' && define.amd) {
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        // Register as an anonymous AMD module:
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        define([
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            'jquery',
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            'load-image',
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            './jquery.fileupload-process'
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        ], factory);
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    } else if (typeof exports === 'object') {
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        // Node/CommonJS:
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        factory(
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            require('jquery'),
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            require('load-image')
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        );
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    } else {
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        // Browser globals:
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        factory(
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            window.jQuery,
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            window.loadImage
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        );
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    }
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}(function ($, loadImage) {
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    'use strict';
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    // Prepend to the default processQueue:
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    $.blueimp.fileupload.prototype.options.processQueue.unshift(
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        {
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            action: 'loadAudio',
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            // Use the action as prefix for the "@" options:
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            prefix: true,
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            fileTypes: '@',
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            maxFileSize: '@',
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            disabled: '@disableAudioPreview'
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        },
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        {
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            action: 'setAudio',
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            name: '@audioPreviewName',
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            disabled: '@disableAudioPreview'
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        }
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    );
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    // The File Upload Audio Preview plugin extends the fileupload widget
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    // with audio preview functionality:
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    $.widget('blueimp.fileupload', $.blueimp.fileupload, {
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        options: {
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            // The regular expression for the types of audio files to load,
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            // matched against the file type:
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            loadAudioFileTypes: /^audio\/.*$/
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        },
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        _audioElement: document.createElement('audio'),
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        processActions: {
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            // Loads the audio file given via data.files and data.index
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            // as audio element if the browser supports playing it.
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            // Accepts the options fileTypes (regular expression)
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            // and maxFileSize (integer) to limit the files to load:
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            loadAudio: function (data, options) {
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                if (options.disabled) {
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                    return data;
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                }
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                var file = data.files[data.index],
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                    url,
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                    audio;
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                if (this._audioElement.canPlayType &&
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                        this._audioElement.canPlayType(file.type) &&
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                        ($.type(options.maxFileSize) !== 'number' ||
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                            file.size <= options.maxFileSize) &&
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                        (!options.fileTypes ||
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                            options.fileTypes.test(file.type))) {
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                    url = loadImage.createObjectURL(file);
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                    if (url) {
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                        audio = this._audioElement.cloneNode(false);
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                        audio.src = url;
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                        audio.controls = true;
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                        data.audio = audio;
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                        return data;
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                    }
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                }
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                return data;
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            },
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            // Sets the audio element as a property of the file object:
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            setAudio: function (data, options) {
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                if (data.audio && !options.disabled) {
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                    data.files[data.index][options.name || 'preview'] = data.audio;
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                }
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                return data;
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            }
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        }
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    });
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}));