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    soundmanager2.js SoundManager2_AS.as SoundManager2_AS3.as SoundManager2_SMSound_AS3.as
  • soundmanager2.js

  • ¶
    /** @license
     *
     * SoundManager 2: JavaScript Sound for the Web
     * ----------------------------------------------
     * http://schillmania.com/projects/soundmanager2/
     *
     * Copyright (c) 2007, Scott Schiller. All rights reserved.
     * Code provided under the BSD License:
     * http://schillmania.com/projects/soundmanager2/license.txt
     *
     * V2.97a.20131201
     */
    
    /*global window, SM2_DEFER, sm2Debugger, console, document, navigator, setTimeout, setInterval, clearInterval, Audio, opera */
    /*jslint regexp: true, sloppy: true, white: true, nomen: true, plusplus: true, todo: true */
    
    /**
     * About this file
     * -------------------------------------------------------------------------------------
     * This is the fully-commented source version of the SoundManager 2 API,
     * recommended for use during development and testing.
     *
     * See soundmanager2-nodebug-jsmin.js for an optimized build (~11KB with gzip.)
     * http://schillmania.com/projects/soundmanager2/doc/getstarted/#basic-inclusion
     * Alternately, serve this file with gzip for 75% compression savings (~30KB over HTTP.)
     *
     * You may notice <d> and </d> comments in this source; these are delimiters for
     * debug blocks which are removed in the -nodebug builds, further optimizing code size.
     *
     * Also, as you may note: Whoa, reliable cross-platform/device audio support is hard! ;)
     */
    
    (function(window, _undefined) {
    
    "use strict";
    
    var soundManager = null;
    
    /**
     * The SoundManager constructor.
     *
     * @constructor
     * @param {string} smURL Optional: Path to SWF files
     * @param {string} smID Optional: The ID to use for the SWF container element
     * @this {SoundManager}
     * @return {SoundManager} The new SoundManager instance
     */
    
    function SoundManager(smURL, smID) {
    
      /**
       * soundManager configuration options list
       * defines top-level configuration properties to be applied to the soundManager instance (eg. soundManager.flashVersion)
       * to set these properties, use the setup() method - eg., soundManager.setup({url: '/swf/', flashVersion: 9})
       */
    
      this.setupOptions = {
    
        'url': (smURL || null),             // path (directory) where SoundManager 2 SWFs exist, eg., /path/to/swfs/
        'flashVersion': 8,                  // flash build to use (8 or 9.) Some API features require 9.
        'debugMode': true,                  // enable debugging output (console.log() with HTML fallback)
        'debugFlash': false,                // enable debugging output inside SWF, troubleshoot Flash/browser issues
        'useConsole': true,                 // use console.log() if available (otherwise, writes to #soundmanager-debug element)
        'consoleOnly': true,                // if console is being used, do not create/write to #soundmanager-debug
        'waitForWindowLoad': false,         // force SM2 to wait for window.onload() before trying to call soundManager.onload()
        'bgColor': '#ffffff',               // SWF background color. N/A when wmode = 'transparent'
        'useHighPerformance': false,        // position:fixed flash movie can help increase js/flash speed, minimize lag
        'flashPollingInterval': null,       // msec affecting whileplaying/loading callback frequency. If null, default of 50 msec is used.
        'html5PollingInterval': null,       // msec affecting whileplaying() for HTML5 audio, excluding mobile devices. If null, native HTML5 update events are used.
        'flashLoadTimeout': 1000,           // msec to wait for flash movie to load before failing (0 = infinity)
        'wmode': null,                      // flash rendering mode - null, 'transparent', or 'opaque' (last two allow z-index to work)
        'allowScriptAccess': 'always',      // for scripting the SWF (object/embed property), 'always' or 'sameDomain'
        'useFlashBlock': false,             // *requires flashblock.css, see demos* - allow recovery from flash blockers. Wait indefinitely and apply timeout CSS to SWF, if applicable.
        'useHTML5Audio': true,              // use HTML5 Audio() where API is supported (most Safari, Chrome versions), Firefox (no MP3/MP4.) Ideally, transparent vs. Flash API where possible.
        'html5Test': /^(probably|maybe)$/i, // HTML5 Audio() format support test. Use /^probably$/i; if you want to be more conservative.
        'preferFlash': false,               // overrides useHTML5audio, will use Flash for MP3/MP4/AAC if present. Potential option if HTML5 playback with these formats is quirky.
        'noSWFCache': false,                // if true, appends ?ts={date} to break aggressive SWF caching.
        'idPrefix': 'sound'                 // if an id is not provided to createSound(), this prefix is used for generated IDs - 'sound0', 'sound1' etc.
    
      };
    
      this.defaultOptions = {
    
        /**
         * the default configuration for sound objects made with createSound() and related methods
         * eg., volume, auto-load behaviour and so forth
         */
    
        'autoLoad': false,        // enable automatic loading (otherwise .load() will be called on demand with .play(), the latter being nicer on bandwidth - if you want to .load yourself, you also can)
        'autoPlay': false,        // enable playing of file as soon as possible (much faster if "stream" is true)
        'from': null,             // position to start playback within a sound (msec), default = beginning
        'loops': 1,               // how many times to repeat the sound (position will wrap around to 0, setPosition() will break out of loop when >0)
        'onid3': null,            // callback function for "ID3 data is added/available"
        'onload': null,           // callback function for "load finished"
        'whileloading': null,     // callback function for "download progress update" (X of Y bytes received)
        'onplay': null,           // callback for "play" start
        'onpause': null,          // callback for "pause"
        'onresume': null,         // callback for "resume" (pause toggle)
        'whileplaying': null,     // callback during play (position update)
        'onposition': null,       // object containing times and function callbacks for positions of interest
        'onstop': null,           // callback for "user stop"
        'onfailure': null,        // callback function for when playing fails
        'onfinish': null,         // callback function for "sound finished playing"
        'multiShot': true,        // let sounds "restart" or layer on top of each other when played multiple times, rather than one-shot/one at a time
        'multiShotEvents': false, // fire multiple sound events (currently onfinish() only) when multiShot is enabled
        'position': null,         // offset (milliseconds) to seek to within loaded sound data.
        'pan': 0,                 // "pan" settings, left-to-right, -100 to 100
        'stream': true,           // allows playing before entire file has loaded (recommended)
        'to': null,               // position to end playback within a sound (msec), default = end
        'type': null,             // MIME-like hint for file pattern / canPlay() tests, eg. audio/mp3
        'usePolicyFile': false,   // enable crossdomain.xml request for audio on remote domains (for ID3/waveform access)
        'volume': 100             // self-explanatory. 0-100, the latter being the max.
    
      };
    
      this.flash9Options = {
    
        /**
         * flash 9-only options,
         * merged into defaultOptions if flash 9 is being used
         */
    
        'isMovieStar': null,      // "MovieStar" MPEG4 audio mode. Null (default) = auto detect MP4, AAC etc. based on URL. true = force on, ignore URL
        'usePeakData': false,     // enable left/right channel peak (level) data
        'useWaveformData': false, // enable sound spectrum (raw waveform data) - NOTE: May increase CPU load.
        'useEQData': false,       // enable sound EQ (frequency spectrum data) - NOTE: May increase CPU load.
        'onbufferchange': null,   // callback for "isBuffering" property change
        'ondataerror': null       // callback for waveform/eq data access error (flash playing audio in other tabs/domains)
    
      };
    
      this.movieStarOptions = {
    
        /**
         * flash 9.0r115+ MPEG4 audio options,
         * merged into defaultOptions if flash 9+movieStar mode is enabled
         */
    
        'bufferTime': 3,          // seconds of data to buffer before playback begins (null = flash default of 0.1 seconds - if AAC playback is gappy, try increasing.)
        'serverURL': null,        // rtmp: FMS or FMIS server to connect to, required when requesting media via RTMP or one of its variants
        'onconnect': null,        // rtmp: callback for connection to flash media server
        'duration': null          // rtmp: song duration (msec)
    
      };
    
      this.audioFormats = {
    
        /**
         * determines HTML5 support + flash requirements.
         * if no support (via flash and/or HTML5) for a "required" format, SM2 will fail to start.
         * flash fallback is used for MP3 or MP4 if HTML5 can't play it (or if preferFlash = true)
         */
    
        'mp3': {
          'type': ['audio/mpeg; codecs="mp3"', 'audio/mpeg', 'audio/mp3', 'audio/MPA', 'audio/mpa-robust'],
          'required': true
        },
    
        'mp4': {
          'related': ['aac','m4a','m4b'], // additional formats under the MP4 container
          'type': ['audio/mp4; codecs="mp4a.40.2"', 'audio/aac', 'audio/x-m4a', 'audio/MP4A-LATM', 'audio/mpeg4-generic'],
          'required': false
        },
    
        'ogg': {
          'type': ['audio/ogg; codecs=vorbis'],
          'required': false
        },
    
        'opus': {
          'type': ['audio/ogg; codecs=opus', 'audio/opus'],
          'required': false
        },
    
        'wav': {
          'type': ['audio/wav; codecs="1"', 'audio/wav', 'audio/wave', 'audio/x-wav'],
          'required': false
        }
    
      };
  • ¶

    HTML attributes (id + class names) for the SWF container

      this.movieID = 'sm2-container';
      this.id = (smID || 'sm2movie');
    
      this.debugID = 'soundmanager-debug';
      this.debugURLParam = /([#?&])debug=1/i;
  • ¶

    dynamic attributes

      this.versionNumber = 'V2.97a.20131201';
      this.version = null;
      this.movieURL = null;
      this.altURL = null;
      this.swfLoaded = false;
      this.enabled = false;
      this.oMC = null;
      this.sounds = {};
      this.soundIDs = [];
      this.muted = false;
      this.didFlashBlock = false;
      this.filePattern = null;
    
      this.filePatterns = {
    
        'flash8': /\.mp3(\?.*)?$/i,
        'flash9': /\.mp3(\?.*)?$/i
    
      };
  • ¶

    support indicators, set at init

      this.features = {
    
        'buffering': false,
        'peakData': false,
        'waveformData': false,
        'eqData': false,
        'movieStar': false
    
      };
  • ¶

    flash sandbox info, used primarily in troubleshooting

      this.sandbox = {
  • ¶
        'type': null,
        'types': {
          'remote': 'remote (domain-based) rules',
          'localWithFile': 'local with file access (no internet access)',
          'localWithNetwork': 'local with network (internet access only, no local access)',
          'localTrusted': 'local, trusted (local+internet access)'
        },
        'description': null,
        'noRemote': null,
        'noLocal': null
  • ¶

      };
    
      /**
       * format support (html5/flash)
       * stores canPlayType() results based on audioFormats.
       * eg. { mp3: boolean, mp4: boolean }
       * treat as read-only.
       */
    
      this.html5 = {
        'usingFlash': null // set if/when flash fallback is needed
      };
  • ¶

    file type support hash

      this.flash = {};
  • ¶

    determined at init time

      this.html5Only = false;
  • ¶

    used for special cases (eg. iPad/iPhone/palm OS?)

      this.ignoreFlash = false;
    
      /**
       * a few private internals (OK, a lot. :D)
       */
    
      var SMSound,
      sm2 = this, globalHTML5Audio = null, flash = null, sm = 'soundManager', smc = sm + ': ', h5 = 'HTML5::', id, ua = navigator.userAgent, wl = window.location.href.toString(), doc = document, doNothing, setProperties, init, fV, on_queue = [], debugOpen = true, debugTS, didAppend = false, appendSuccess = false, didInit = false, disabled = false, windowLoaded = false, _wDS, wdCount = 0, initComplete, mixin, assign, extraOptions, addOnEvent, processOnEvents, initUserOnload, delayWaitForEI, waitForEI, rebootIntoHTML5, setVersionInfo, handleFocus, strings, initMovie, preInit, domContentLoaded, winOnLoad, didDCLoaded, getDocument, createMovie, catchError, setPolling, initDebug, debugLevels = ['log', 'info', 'warn', 'error'], defaultFlashVersion = 8, disableObject, failSafely, normalizeMovieURL, oRemoved = null, oRemovedHTML = null, str, flashBlockHandler, getSWFCSS, swfCSS, toggleDebug, loopFix, policyFix, complain, idCheck, waitingForEI = false, initPending = false, startTimer, stopTimer, timerExecute, h5TimerCount = 0, h5IntervalTimer = null, parseURL, messages = [],
      canIgnoreFlash, needsFlash = null, featureCheck, html5OK, html5CanPlay, html5Ext, html5Unload, domContentLoadedIE, testHTML5, event, slice = Array.prototype.slice, useGlobalHTML5Audio = false, lastGlobalHTML5URL, hasFlash, detectFlash, badSafariFix, html5_events, showSupport, flushMessages, wrapCallback, idCounter = 0,
      is_iDevice = ua.match(/(ipad|iphone|ipod)/i), isAndroid = ua.match(/android/i), isIE = ua.match(/msie/i), isWebkit = ua.match(/webkit/i), isSafari = (ua.match(/safari/i) && !ua.match(/chrome/i)), isOpera = (ua.match(/opera/i)),
      mobileHTML5 = (ua.match(/(mobile|pre\/|xoom)/i) || is_iDevice || isAndroid),
      isBadSafari = (!wl.match(/usehtml5audio/i) && !wl.match(/sm2\-ignorebadua/i) && isSafari && !ua.match(/silk/i) && ua.match(/OS X 10_6_([3-7])/i)), // Safari 4 and 5 (excluding Kindle Fire, "Silk") occasionally fail to load/play HTML5 audio on Snow Leopard 10.6.3 through 10.6.7 due to bug(s) in QuickTime X and/or other underlying frameworks. :/ Confirmed bug. https://bugs.webkit.org/show_bug.cgi?id=32159
      hasConsole = (window.console !== _undefined && console.log !== _undefined), isFocused = (doc.hasFocus !== _undefined?doc.hasFocus():null), tryInitOnFocus = (isSafari && (doc.hasFocus === _undefined || !doc.hasFocus())), okToDisable = !tryInitOnFocus, flashMIME = /(mp3|mp4|mpa|m4a|m4b)/i, msecScale = 1000,
      emptyURL = 'about:blank', // safe URL to unload, or load nothing from (flash 8 + most HTML5 UAs)
      emptyWAV = 'data:audio/wave;base64,/UklGRiYAAABXQVZFZm10IBAAAAABAAEARKwAAIhYAQACABAAZGF0YQIAAAD//w==', // tiny WAV for HTML5 unloading
      overHTTP = (doc.location?doc.location.protocol.match(/http/i):null),
      http = (!overHTTP ? 'http:/'+'/' : ''),
  • ¶

    mp3, mp4, aac etc.

      netStreamMimeTypes = /^\s*audio\/(?:x-)?(?:mpeg4|aac|flv|mov|mp4||m4v|m4a|m4b|mp4v|3gp|3g2)\s*(?:$|;)/i,
  • ¶

    Flash v9.0r115+ "moviestar" formats

      netStreamTypes = ['mpeg4', 'aac', 'flv', 'mov', 'mp4', 'm4v', 'f4v', 'm4a', 'm4b', 'mp4v', '3gp', '3g2'],
      netStreamPattern = new RegExp('\\.(' + netStreamTypes.join('|') + ')(\\?.*)?$', 'i');
    
      this.mimePattern = /^\s*audio\/(?:x-)?(?:mp(?:eg|3))\s*(?:$|;)/i; // default mp3 set
  • ¶

    use altURL if not "online"

      this.useAltURL = !overHTTP;
    
      swfCSS = {
    
        'swfBox': 'sm2-object-box',
        'swfDefault': 'movieContainer',
        'swfError': 'swf_error', // SWF loaded, but SM2 couldn't start (other error)
        'swfTimedout': 'swf_timedout',
        'swfLoaded': 'swf_loaded',
        'swfUnblocked': 'swf_unblocked', // or loaded OK
        'sm2Debug': 'sm2_debug',
        'highPerf': 'high_performance',
        'flashDebug': 'flash_debug'
    
      };
    
      /**
       * basic HTML5 Audio() support test
       * try...catch because of IE 9 "not implemented" nonsense
       * https://github.com/Modernizr/Modernizr/issues/224
       */
    
      this.hasHTML5 = (function() {
        try {
  • ¶

    new Audio(null) for stupid Opera 9.64 case, which throws not_enough_arguments exception otherwise.

          return (Audio !== _undefined && (isOpera && opera !== _undefined && opera.version() < 10 ? new Audio(null) : new Audio()).canPlayType !== _undefined);
        } catch(e) {
          return false;
        }
      }());
    
      /**
       * Public SoundManager API
       * -----------------------
       */
    
      /**
       * Configures top-level soundManager properties.
       *
       * @param {object} options Option parameters, eg. { flashVersion: 9, url: '/path/to/swfs/' }
       * onready and ontimeout are also accepted parameters. call soundManager.setup() to see the full list.
       */
    
      this.setup = function(options) {
    
        var noURL = (!sm2.url);
  • ¶

    warn if flash options have already been applied

        if (options !== _undefined && didInit && needsFlash && sm2.ok() && (options.flashVersion !== _undefined || options.url !== _undefined || options.html5Test !== _undefined)) {
          complain(str('setupLate'));
        }
  • ¶

    TODO: defer: true?

        assign(options);
  • ¶

    special case 1: "Late setup". SM2 loaded normally, but user didn't assign flash URL eg., setup({url:...}) before SM2 init. Treat as delayed init.

        if (options) {
    
          if (noURL && didDCLoaded && options.url !== _undefined) {
            sm2.beginDelayedInit();
          }
  • ¶

    special case 2: If lazy-loading SM2 (DOMContentLoaded has already happened) and user calls setup() with url: parameter, try to init ASAP.

          if (!didDCLoaded && options.url !== _undefined && doc.readyState === 'complete') {
            setTimeout(domContentLoaded, 1);
          }
    
        }
    
        return sm2;
    
      };
    
      this.ok = function() {
    
        return (needsFlash ? (didInit && !disabled) : (sm2.useHTML5Audio && sm2.hasHTML5));
    
      };
    
      this.supported = this.ok; // legacy
    
      this.getMovie = function(smID) {
  • ¶

    safety net: some old browsers differ on SWF references, possibly related to ExternalInterface / flash version

        return id(smID) || doc[smID] || window[smID];
    
      };
    
      /**
       * Creates a SMSound sound object instance.
       *
       * @param {object} oOptions Sound options (at minimum, id and url parameters are required.)
       * @return {object} SMSound The new SMSound object.
       */
    
      this.createSound = function(oOptions, _url) {
    
        var cs, cs_string, options, oSound = null;
  • ¶
        cs = sm + '.createSound(): ';
        cs_string = cs + str(!didInit?'notReady':'notOK');
  • ¶

        if (!didInit || !sm2.ok()) {
          complain(cs_string);
          return false;
        }
    
        if (_url !== _undefined) {
  • ¶

    function overloading in JS! :) ..assume simple createSound(id, url) use case

          oOptions = {
            'id': oOptions,
            'url': _url
          };
        }
  • ¶

    inherit from defaultOptions

        options = mixin(oOptions);
    
        options.url = parseURL(options.url);
  • ¶

    generate an id, if needed.

        if (options.id === undefined) {
          options.id = sm2.setupOptions.idPrefix + (idCounter++);
        }
  • ¶
        if (options.id.toString().charAt(0).match(/^[0-9]$/)) {
          sm2._wD(cs + str('badID', options.id), 2);
        }
    
        sm2._wD(cs + options.id + (options.url ? ' (' + options.url + ')' : ''), 1);
  • ¶

        if (idCheck(options.id, true)) {
          sm2._wD(cs + options.id + ' exists', 1);
          return sm2.sounds[options.id];
        }
    
        function make() {
    
          options = loopFix(options);
          sm2.sounds[options.id] = new SMSound(options);
          sm2.soundIDs.push(options.id);
          return sm2.sounds[options.id];
    
        }
    
        if (html5OK(options)) {
    
          oSound = make();
          sm2._wD(options.id + ': Using HTML5');
          oSound._setup_html5(options);
    
        } else {
    
          if (sm2.html5Only) {
            sm2._wD(options.id + ': No HTML5 support for this sound, and no Flash. Exiting.');
            return make();
          }
  • ¶

    TODO: Move HTML5/flash checks into generic URL parsing/handling function.

          if (sm2.html5.usingFlash && options.url && options.url.match(/data\:/i)) {
  • ¶

    data: URIs not supported by Flash, either.

            sm2._wD(options.id + ': data: URIs not supported via Flash. Exiting.');
            return make();
          }
    
          if (fV > 8) {
            if (options.isMovieStar === null) {
  • ¶

    attempt to detect MPEG-4 formats

              options.isMovieStar = !!(options.serverURL || (options.type ? options.type.match(netStreamMimeTypes) : false) || (options.url && options.url.match(netStreamPattern)));
            }
  • ¶
            if (options.isMovieStar) {
              sm2._wD(cs + 'using MovieStar handling');
              if (options.loops > 1) {
                _wDS('noNSLoop');
              }
            }
  • ¶

          }
    
          options = policyFix(options, cs);
          oSound = make();
    
          if (fV === 8) {
            flash._createSound(options.id, options.loops||1, options.usePolicyFile);
          } else {
            flash._createSound(options.id, options.url, options.usePeakData, options.useWaveformData, options.useEQData, options.isMovieStar, (options.isMovieStar?options.bufferTime:false), options.loops||1, options.serverURL, options.duration||null, options.autoPlay, true, options.autoLoad, options.usePolicyFile);
            if (!options.serverURL) {
  • ¶

    We are connected immediately

              oSound.connected = true;
              if (options.onconnect) {
                options.onconnect.apply(oSound);
              }
            }
          }
    
          if (!options.serverURL && (options.autoLoad || options.autoPlay)) {
  • ¶

    call load for non-rtmp streams

            oSound.load(options);
          }
    
        }
  • ¶

    rtmp will play in onconnect

        if (!options.serverURL && options.autoPlay) {
          oSound.play();
        }
    
        return oSound;
    
      };
    
      /**
       * Destroys a SMSound sound object instance.
       *
       * @param {string} sID The ID of the sound to destroy
       */
    
      this.destroySound = function(sID, _bFromSound) {
  • ¶

    explicitly destroy a sound before normal page unload, etc.

        if (!idCheck(sID)) {
          return false;
        }
    
        var oS = sm2.sounds[sID], i;
  • ¶

    Disable all callbacks while the sound is being destroyed

        oS._iO = {};
    
        oS.stop();
        oS.unload();
    
        for (i = 0; i < sm2.soundIDs.length; i++) {
          if (sm2.soundIDs[i] === sID) {
            sm2.soundIDs.splice(i, 1);
            break;
          }
        }
    
        if (!_bFromSound) {
  • ¶

    ignore if being called from SMSound instance

          oS.destruct(true);
        }
    
        oS = null;
        delete sm2.sounds[sID];
    
        return true;
    
      };
    
      /**
       * Calls the load() method of a SMSound object by ID.
       *
       * @param {string} sID The ID of the sound
       * @param {object} oOptions Optional: Sound options
       */
    
      this.load = function(sID, oOptions) {
    
        if (!idCheck(sID)) {
          return false;
        }
        return sm2.sounds[sID].load(oOptions);
    
      };
    
      /**
       * Calls the unload() method of a SMSound object by ID.
       *
       * @param {string} sID The ID of the sound
       */
    
      this.unload = function(sID) {
    
        if (!idCheck(sID)) {
          return false;
        }
        return sm2.sounds[sID].unload();
    
      };
    
      /**
       * Calls the onPosition() method of a SMSound object by ID.
       *
       * @param {string} sID The ID of the sound
       * @param {number} nPosition The position to watch for
       * @param {function} oMethod The relevant callback to fire
       * @param {object} oScope Optional: The scope to apply the callback to
       * @return {SMSound} The SMSound object
       */
    
      this.onPosition = function(sID, nPosition, oMethod, oScope) {
    
        if (!idCheck(sID)) {
          return false;
        }
        return sm2.sounds[sID].onposition(nPosition, oMethod, oScope);
    
      };
  • ¶

    legacy/backwards-compability: lower-case method name

      this.onposition = this.onPosition;
    
      /**
       * Calls the clearOnPosition() method of a SMSound object by ID.
       *
       * @param {string} sID The ID of the sound
       * @param {number} nPosition The position to watch for
       * @param {function} oMethod Optional: The relevant callback to fire
       * @return {SMSound} The SMSound object
       */
    
      this.clearOnPosition = function(sID, nPosition, oMethod) {
    
        if (!idCheck(sID)) {
          return false;
        }
        return sm2.sounds[sID].clearOnPosition(nPosition, oMethod);
    
      };
    
      /**
       * Calls the play() method of a SMSound object by ID.
       *
       * @param {string} sID The ID of the sound
       * @param {object} oOptions Optional: Sound options
       * @return {SMSound} The SMSound object
       */
    
      this.play = function(sID, oOptions) {
    
        var result = null,
  • ¶

    legacy function-overloading use case: play('mySound', '/path/to/some.mp3');

            overloaded = (oOptions && !(oOptions instanceof Object));
    
        if (!didInit || !sm2.ok()) {
          complain(sm + '.play(): ' + str(!didInit?'notReady':'notOK'));
          return false;
        }
    
        if (!idCheck(sID, overloaded)) {
    
          if (!overloaded) {
  • ¶

    no sound found for the given ID. Bail.

            return false;
          }
    
          if (overloaded) {
            oOptions = {
              url: oOptions
            };
          }
    
          if (oOptions && oOptions.url) {
  • ¶

    overloading use case, create+play: .play('someID', {url:'/path/to.mp3'});

            sm2._wD(sm + '.play(): Attempting to create "' + sID + '"', 1);
            oOptions.id = sID;
            result = sm2.createSound(oOptions).play();
          }
    
        } else if (overloaded) {
  • ¶

    existing sound object case

          oOptions = {
            url: oOptions
          };
    
        }
    
        if (result === null) {
  • ¶

    default case

          result = sm2.sounds[sID].play(oOptions);
        }
    
        return result;
    
      };
    
      this.start = this.play; // just for convenience
    
      /**
       * Calls the setPosition() method of a SMSound object by ID.
       *
       * @param {string} sID The ID of the sound
       * @param {number} nMsecOffset Position (milliseconds)
       * @return {SMSound} The SMSound object
       */
    
      this.setPosition = function(sID, nMsecOffset) {
    
        if (!idCheck(sID)) {
          return false;
        }
        return sm2.sounds[sID].setPosition(nMsecOffset);
    
      };
    
      /**
       * Calls the stop() method of a SMSound object by ID.
       *
       * @param {string} sID The ID of the sound
       * @return {SMSound} The SMSound object
       */
    
      this.stop = function(sID) {
    
        if (!idCheck(sID)) {
          return false;
        }
    
        sm2._wD(sm + '.stop(' + sID + ')', 1);
        return sm2.sounds[sID].stop();
    
      };
    
      /**
       * Stops all currently-playing sounds.
       */
    
      this.stopAll = function() {
    
        var oSound;
        sm2._wD(sm + '.stopAll()', 1);
    
        for (oSound in sm2.sounds) {
          if (sm2.sounds.hasOwnProperty(oSound)) {
  • ¶

    apply only to sound objects

            sm2.sounds[oSound].stop();
          }
        }
    
      };
    
      /**
       * Calls the pause() method of a SMSound object by ID.
       *
       * @param {string} sID The ID of the sound
       * @return {SMSound} The SMSound object
       */
    
      this.pause = function(sID) {
    
        if (!idCheck(sID)) {
          return false;
        }
        return sm2.sounds[sID].pause();
    
      };
    
      /**
       * Pauses all currently-playing sounds.
       */
    
      this.pauseAll = function() {
    
        var i;
        for (i = sm2.soundIDs.length-1; i >= 0; i--) {
          sm2.sounds[sm2.soundIDs[i]].pause();
        }
    
      };
    
      /**
       * Calls the resume() method of a SMSound object by ID.
       *
       * @param {string} sID The ID of the sound
       * @return {SMSound} The SMSound object
       */
    
      this.resume = function(sID) {
    
        if (!idCheck(sID)) {
          return false;
        }
        return sm2.sounds[sID].resume();
    
      };
    
      /**
       * Resumes all currently-paused sounds.
       */
    
      this.resumeAll = function() {
    
        var i;
        for (i = sm2.soundIDs.length-1; i >= 0; i--) {
          sm2.sounds[sm2.soundIDs[i]].resume();
        }
    
      };
    
      /**
       * Calls the togglePause() method of a SMSound object by ID.
       *
       * @param {string} sID The ID of the sound
       * @return {SMSound} The SMSound object
       */
    
      this.togglePause = function(sID) {
    
        if (!idCheck(sID)) {
          return false;
        }
        return sm2.sounds[sID].togglePause();
    
      };
    
      /**
       * Calls the setPan() method of a SMSound object by ID.
       *
       * @param {string} sID The ID of the sound
       * @param {number} nPan The pan value (-100 to 100)
       * @return {SMSound} The SMSound object
       */
    
      this.setPan = function(sID, nPan) {
    
        if (!idCheck(sID)) {
          return false;
        }
        return sm2.sounds[sID].setPan(nPan);
    
      };
    
      /**
       * Calls the setVolume() method of a SMSound object by ID.
       *
       * @param {string} sID The ID of the sound
       * @param {number} nVol The volume value (0 to 100)
       * @return {SMSound} The SMSound object
       */
    
      this.setVolume = function(sID, nVol) {
    
        if (!idCheck(sID)) {
          return false;
        }
        return sm2.sounds[sID].setVolume(nVol);
    
      };
    
      /**
       * Calls the mute() method of either a single SMSound object by ID, or all sound objects.
       *
       * @param {string} sID Optional: The ID of the sound (if omitted, all sounds will be used.)
       */
    
      this.mute = function(sID) {
    
        var i = 0;
    
        if (sID instanceof String) {
          sID = null;
        }
    
        if (!sID) {
    
          sm2._wD(sm + '.mute(): Muting all sounds');
          for (i = sm2.soundIDs.length-1; i >= 0; i--) {
            sm2.sounds[sm2.soundIDs[i]].mute();
          }
          sm2.muted = true;
    
        } else {
    
          if (!idCheck(sID)) {
            return false;
          }
          sm2._wD(sm + '.mute(): Muting "' + sID + '"');
          return sm2.sounds[sID].mute();
    
        }
    
        return true;
    
      };
    
      /**
       * Mutes all sounds.
       */
    
      this.muteAll = function() {
    
        sm2.mute();
    
      };
    
      /**
       * Calls the unmute() method of either a single SMSound object by ID, or all sound objects.
       *
       * @param {string} sID Optional: The ID of the sound (if omitted, all sounds will be used.)
       */
    
      this.unmute = function(sID) {
    
        var i;
    
        if (sID instanceof String) {
          sID = null;
        }
    
        if (!sID) {
    
          sm2._wD(sm + '.unmute(): Unmuting all sounds');
          for (i = sm2.soundIDs.length-1; i >= 0; i--) {
            sm2.sounds[sm2.soundIDs[i]].unmute();
          }
          sm2.muted = false;
    
        } else {
    
          if (!idCheck(sID)) {
            return false;
          }
          sm2._wD(sm + '.unmute(): Unmuting "' + sID + '"');
          return sm2.sounds[sID].unmute();
    
        }
    
        return true;
    
      };
    
      /**
       * Unmutes all sounds.
       */
    
      this.unmuteAll = function() {
    
        sm2.unmute();
    
      };
    
      /**
       * Calls the toggleMute() method of a SMSound object by ID.
       *
       * @param {string} sID The ID of the sound
       * @return {SMSound} The SMSound object
       */
    
      this.toggleMute = function(sID) {
    
        if (!idCheck(sID)) {
          return false;
        }
        return sm2.sounds[sID].toggleMute();
    
      };
    
      /**
       * Retrieves the memory used by the flash plugin.
       *
       * @return {number} The amount of memory in use
       */
    
      this.getMemoryUse = function() {
  • ¶

    flash-only

        var ram = 0;
    
        if (flash && fV !== 8) {
          ram = parseInt(flash._getMemoryUse(), 10);
        }
    
        return ram;
    
      };
    
      /**
       * Undocumented: NOPs soundManager and all SMSound objects.
       */
    
      this.disable = function(bNoDisable) {
  • ¶

    destroy all functions

        var i;
    
        if (bNoDisable === _undefined) {
          bNoDisable = false;
        }
    
        if (disabled) {
          return false;
        }
    
        disabled = true;
        _wDS('shutdown', 1);
    
        for (i = sm2.soundIDs.length-1; i >= 0; i--) {
          disableObject(sm2.sounds[sm2.soundIDs[i]]);
        }
  • ¶

    fire "complete", despite fail

        initComplete(bNoDisable);
        event.remove(window, 'load', initUserOnload);
    
        return true;
    
      };
    
      /**
       * Determines playability of a MIME type, eg. 'audio/mp3'.
       */
    
      this.canPlayMIME = function(sMIME) {
    
        var result;
    
        if (sm2.hasHTML5) {
          result = html5CanPlay({type:sMIME});
        }
    
        if (!result && needsFlash) {
  • ¶

    if flash 9, test netStream (movieStar) types as well.

          result = (sMIME && sm2.ok() ? !!((fV > 8 ? sMIME.match(netStreamMimeTypes) : null) || sMIME.match(sm2.mimePattern)) : null); // TODO: make less "weird" (per JSLint)
        }
    
        return result;
    
      };
    
      /**
       * Determines playability of a URL based on audio support.
       *
       * @param {string} sURL The URL to test
       * @return {boolean} URL playability
       */
    
      this.canPlayURL = function(sURL) {
    
        var result;
    
        if (sm2.hasHTML5) {
          result = html5CanPlay({url: sURL});
        }
    
        if (!result && needsFlash) {
          result = (sURL && sm2.ok() ? !!(sURL.match(sm2.filePattern)) : null);
        }
    
        return result;
    
      };
    
      /**
       * Determines playability of an HTML DOM &lt;a&gt; object (or similar object literal) based on audio support.
       *
       * @param {object} oLink an HTML DOM &lt;a&gt; object or object literal including href and/or type attributes
       * @return {boolean} URL playability
       */
    
      this.canPlayLink = function(oLink) {
    
        if (oLink.type !== _undefined && oLink.type) {
          if (sm2.canPlayMIME(oLink.type)) {
            return true;
          }
        }
    
        return sm2.canPlayURL(oLink.href);
    
      };
    
      /**
       * Retrieves a SMSound object by ID.
       *
       * @param {string} sID The ID of the sound
       * @return {SMSound} The SMSound object
       */
    
      this.getSoundById = function(sID, _suppressDebug) {
    
        if (!sID) {
          return null;
        }
    
        var result = sm2.sounds[sID];
  • ¶
        if (!result && !_suppressDebug) {
          sm2._wD(sm + '.getSoundById(): Sound "' + sID + '" not found.', 2);
        }
  • ¶

        return result;
    
      };
    
      /**
       * Queues a callback for execution when SoundManager has successfully initialized.
       *
       * @param {function} oMethod The callback method to fire
       * @param {object} oScope Optional: The scope to apply to the callback
       */
    
      this.onready = function(oMethod, oScope) {
    
        var sType = 'onready',
            result = false;
    
        if (typeof oMethod === 'function') {
  • ¶
          if (didInit) {
            sm2._wD(str('queue', sType));
          }
  • ¶

          if (!oScope) {
            oScope = window;
          }
    
          addOnEvent(sType, oMethod, oScope);
          processOnEvents();
    
          result = true;
    
        } else {
    
          throw str('needFunction', sType);
    
        }
    
        return result;
    
      };
    
      /**
       * Queues a callback for execution when SoundManager has failed to initialize.
       *
       * @param {function} oMethod The callback method to fire
       * @param {object} oScope Optional: The scope to apply to the callback
       */
    
      this.ontimeout = function(oMethod, oScope) {
    
        var sType = 'ontimeout',
            result = false;
    
        if (typeof oMethod === 'function') {
  • ¶
          if (didInit) {
            sm2._wD(str('queue', sType));
          }
  • ¶

          if (!oScope) {
            oScope = window;
          }
    
          addOnEvent(sType, oMethod, oScope);
          processOnEvents({type:sType});
    
          result = true;
    
        } else {
    
          throw str('needFunction', sType);
    
        }
    
        return result;
    
      };
    
      /**
       * Writes console.log()-style debug output to a console or in-browser element.
       * Applies when debugMode = true
       *
       * @param {string} sText The console message
       * @param {object} nType Optional log level (number), or object. Number case: Log type/style where 0 = 'info', 1 = 'warn', 2 = 'error'. Object case: Object to be dumped.
       */
    
      this._writeDebug = function(sText, sTypeOrObject) {
  • ¶

    pseudo-private console.log()-style output

        var sDID = 'soundmanager-debug', o, oItem;
    
        if (!sm2.debugMode) {
          return false;
        }
    
        if (hasConsole && sm2.useConsole) {
          if (sTypeOrObject && typeof sTypeOrObject === 'object') {
  • ¶

    object passed; dump to console.

            console.log(sText, sTypeOrObject);
          } else if (debugLevels[sTypeOrObject] !== _undefined) {
            console[debugLevels[sTypeOrObject]](sText);
          } else {
            console.log(sText);
          }
          if (sm2.consoleOnly) {
            return true;
          }
        }
    
        o = id(sDID);
    
        if (!o) {
          return false;
        }
    
        oItem = doc.createElement('div');
    
        if (++wdCount % 2 === 0) {
          oItem.className = 'sm2-alt';
        }
    
        if (sTypeOrObject === _undefined) {
          sTypeOrObject = 0;
        } else {
          sTypeOrObject = parseInt(sTypeOrObject, 10);
        }
    
        oItem.appendChild(doc.createTextNode(sText));
    
        if (sTypeOrObject) {
          if (sTypeOrObject >= 2) {
            oItem.style.fontWeight = 'bold';
          }
          if (sTypeOrObject === 3) {
            oItem.style.color = '#ff3333';
          }
        }
  • ¶

    top-to-bottom o.appendChild(oItem);

  • ¶

    bottom-to-top

        o.insertBefore(oItem, o.firstChild);
    
        o = null;
  • ¶

        return true;
    
      };
  • ¶

    last-resort debugging option

      if (wl.indexOf('sm2-debug=alert') !== -1) {
        this._writeDebug = function(sText) {
          window.alert(sText);
        };
      }
  • ¶

  • ¶

    alias

      this._wD = this._writeDebug;
    
      /**
       * Provides debug / state information on all SMSound objects.
       */
    
      this._debug = function() {
  • ¶
        var i, j;
        _wDS('currentObj', 1);
    
        for (i = 0, j = sm2.soundIDs.length; i < j; i++) {
          sm2.sounds[sm2.soundIDs[i]]._debug();
        }
  • ¶

      };
    
      /**
       * Restarts and re-initializes the SoundManager instance.
       *
       * @param {boolean} resetEvents Optional: When true, removes all registered onready and ontimeout event callbacks.
       * @param {boolean} excludeInit Options: When true, does not call beginDelayedInit() (which would restart SM2).
       * @return {object} soundManager The soundManager instance.
       */
    
      this.reboot = function(resetEvents, excludeInit) {
  • ¶

    reset some (or all) state, and re-init unless otherwise specified.

  • ¶
        if (sm2.soundIDs.length) {
          sm2._wD('Destroying ' + sm2.soundIDs.length + ' SMSound object' + (sm2.soundIDs.length !== 1 ? 's' : '') + '...');
        }
  • ¶

        var i, j, k;
    
        for (i = sm2.soundIDs.length-1; i >= 0; i--) {
          sm2.sounds[sm2.soundIDs[i]].destruct();
        }
  • ¶

    trash ze flash (remove from the DOM)

        if (flash) {
    
          try {
    
            if (isIE) {
              oRemovedHTML = flash.innerHTML;
            }
    
            oRemoved = flash.parentNode.removeChild(flash);
    
          } catch(e) {
  • ¶

    Remove failed? May be due to flash blockers silently removing the SWF object/embed node from the DOM. Warn and continue.

            _wDS('badRemove', 2);
    
          }
    
        }
  • ¶

    actually, force recreate of movie.

        oRemovedHTML = oRemoved = needsFlash = flash = null;
    
        sm2.enabled = didDCLoaded = didInit = waitingForEI = initPending = didAppend = appendSuccess = disabled = useGlobalHTML5Audio = sm2.swfLoaded = false;
    
        sm2.soundIDs = [];
        sm2.sounds = {};
    
        idCounter = 0;
    
        if (!resetEvents) {
  • ¶

    reset callbacks for onready, ontimeout etc. so that they will fire again on re-init

          for (i in on_queue) {
            if (on_queue.hasOwnProperty(i)) {
              for (j = 0, k = on_queue[i].length; j < k; j++) {
                on_queue[i][j].fired = false;
              }
            }
          }
        } else {
  • ¶

    remove all callbacks entirely

          on_queue = [];
        }
  • ¶
        if (!excludeInit) {
          sm2._wD(sm + ': Rebooting...');
        }
  • ¶

  • ¶

    reset HTML5 and flash canPlay test results

        sm2.html5 = {
          'usingFlash': null
        };
    
        sm2.flash = {};
  • ¶

    reset device-specific HTML/flash mode switches

        sm2.html5Only = false;
        sm2.ignoreFlash = false;
    
        window.setTimeout(function() {
    
          preInit();
  • ¶

    by default, re-init

          if (!excludeInit) {
            sm2.beginDelayedInit();
          }
    
        }, 20);
    
        return sm2;
    
      };
    
      this.reset = function() {
    
        /**
         * Shuts down and restores the SoundManager instance to its original loaded state, without an explicit reboot. All onready/ontimeout handlers are removed.
         * After this call, SM2 may be re-initialized via soundManager.beginDelayedInit().
         * @return {object} soundManager The soundManager instance.
         */
    
        _wDS('reset');
        return sm2.reboot(true, true);
    
      };
    
      /**
       * Undocumented: Determines the SM2 flash movie's load progress.
       *
       * @return {number or null} Percent loaded, or if invalid/unsupported, null.
       */
    
      this.getMoviePercent = function() {
    
        /**
         * Interesting syntax notes...
         * Flash/ExternalInterface (ActiveX/NPAPI) bridge methods are not typeof "function" nor instanceof Function, but are still valid.
         * Additionally, JSLint dislikes ('PercentLoaded' in flash)-style syntax and recommends hasOwnProperty(), which does not work in this case.
         * Furthermore, using (flash && flash.PercentLoaded) causes IE to throw "object doesn't support this property or method".
         * Thus, 'in' syntax must be used.
         */
    
        return (flash && 'PercentLoaded' in flash ? flash.PercentLoaded() : null); // Yes, JSLint. See nearby comment in source for explanation.
    
      };
    
      /**
       * Additional helper for manually invoking SM2's init process after DOM Ready / window.onload().
       */
    
      this.beginDelayedInit = function() {
    
        windowLoaded = true;
        domContentLoaded();
    
        setTimeout(function() {
    
          if (initPending) {
            return false;
          }
    
          createMovie();
          initMovie();
          initPending = true;
    
          return true;
    
        }, 20);
    
        delayWaitForEI();
    
      };
    
      /**
       * Destroys the SoundManager instance and all SMSound instances.
       */
    
      this.destruct = function() {
    
        sm2._wD(sm + '.destruct()');
        sm2.disable(true);
    
      };
    
      /**
       * SMSound() (sound object) constructor
       * ------------------------------------
       *
       * @param {object} oOptions Sound options (id and url are required attributes)
       * @return {SMSound} The new SMSound object
       */
    
      SMSound = function(oOptions) {
    
        var s = this, resetProperties, add_html5_events, remove_html5_events, stop_html5_timer, start_html5_timer, attachOnPosition, onplay_called = false, onPositionItems = [], onPositionFired = 0, detachOnPosition, applyFromTo, lastURL = null, lastHTML5State, urlOmitted;
    
        lastHTML5State = {
  • ¶

    tracks duration + position (time)

          duration: null,
          time: null
        };
    
        this.id = oOptions.id;
  • ¶

    legacy

        this.sID = this.id;
    
        this.url = oOptions.url;
        this.options = mixin(oOptions);
  • ¶

    per-play-instance-specific options

        this.instanceOptions = this.options;
  • ¶

    short alias

        this._iO = this.instanceOptions;
  • ¶

    assign property defaults

        this.pan = this.options.pan;
        this.volume = this.options.volume;
  • ¶

    whether or not this object is using HTML5

        this.isHTML5 = false;
  • ¶

    internal HTML5 Audio() object reference

        this._a = null;
  • ¶

    for flash 8 special-case createSound() without url, followed by load/play with url case

        urlOmitted = (this.url ? false : true);
    
        /**
         * SMSound() public methods
         * ------------------------
         */
    
        this.id3 = {};
    
        /**
         * Writes SMSound object parameters to debug console
         */
    
        this._debug = function() {
  • ¶
          sm2._wD(s.id + ': Merged options:', s.options);
  • ¶

        };
    
        /**
         * Begins loading a sound per its *url*.
         *
         * @param {object} oOptions Optional: Sound options
         * @return {SMSound} The SMSound object
         */
    
        this.load = function(oOptions) {
    
          var oSound = null, instanceOptions;
    
          if (oOptions !== _undefined) {
            s._iO = mixin(oOptions, s.options);
          } else {
            oOptions = s.options;
            s._iO = oOptions;
            if (lastURL && lastURL !== s.url) {
              _wDS('manURL');
              s._iO.url = s.url;
              s.url = null;
            }
          }
    
          if (!s._iO.url) {
            s._iO.url = s.url;
          }
    
          s._iO.url = parseURL(s._iO.url);
  • ¶

    ensure we're in sync

          s.instanceOptions = s._iO;
  • ¶

    local shortcut

          instanceOptions = s._iO;
    
          sm2._wD(s.id + ': load (' + instanceOptions.url + ')');
    
          if (!instanceOptions.url && !s.url) {
            sm2._wD(s.id + ': load(): url is unassigned. Exiting.', 2);
            return s;
          }
  • ¶
          if (!s.isHTML5 && fV === 8 && !s.url && !instanceOptions.autoPlay) {
  • ¶

    flash 8 load() -> play() won't work before onload has fired.

            sm2._wD(s.id + ': Flash 8 load() limitation: Wait for onload() before calling play().', 1);
          }
  • ¶

          if (instanceOptions.url === s.url && s.readyState !== 0 && s.readyState !== 2) {
            _wDS('onURL', 1);
  • ¶

    if loaded and an onload() exists, fire immediately.

            if (s.readyState === 3 && instanceOptions.onload) {
  • ¶

    assume success based on truthy duration.

              wrapCallback(s, function() {
                instanceOptions.onload.apply(s, [(!!s.duration)]);
              });
            }
            return s;
          }
  • ¶

    reset a few state properties

          s.loaded = false;
          s.readyState = 1;
          s.playState = 0;
          s.id3 = {};
  • ¶

    TODO: If switching from HTML5 -> flash (or vice versa), stop currently-playing audio.

          if (html5OK(instanceOptions)) {
    
            oSound = s._setup_html5(instanceOptions);
    
            if (!oSound._called_load) {
    
              s._html5_canplay = false;
  • ¶

    TODO: review called_load / html5_canplay logic

  • ¶

    if url provided directly to load(), assign it here.

              if (s.url !== instanceOptions.url) {
    
                sm2._wD(_wDS('manURL') + ': ' + instanceOptions.url);
    
                s._a.src = instanceOptions.url;
  • ¶

    TODO: review / re-apply all relevant options (volume, loop, onposition etc.)

  • ¶

    reset position for new URL

                s.setPosition(0);
    
              }
  • ¶

    given explicit load call, try to preload.

  • ¶

    early HTML5 implementation (non-standard)

              s._a.autobuffer = 'auto';
  • ¶

    standard property, values: none / metadata / auto reference: http://msdn.microsoft.com/en-us/library/ie/ff974759%28v=vs.85%29.aspx

              s._a.preload = 'auto';
    
              s._a._called_load = true;
    
            } else {
    
              sm2._wD(s.id + ': Ignoring request to load again');
    
            }
    
          } else {
    
            if (sm2.html5Only) {
              sm2._wD(s.id + ': No flash support. Exiting.');
              return s;
            }
    
            if (s._iO.url && s._iO.url.match(/data\:/i)) {
  • ¶

    data: URIs not supported by Flash, either.

              sm2._wD(s.id + ': data: URIs not supported via Flash. Exiting.');
              return s;
            }
    
            try {
              s.isHTML5 = false;
              s._iO = policyFix(loopFix(instanceOptions));
  • ¶

    re-assign local shortcut

              instanceOptions = s._iO;
              if (fV === 8) {
                flash._load(s.id, instanceOptions.url, instanceOptions.stream, instanceOptions.autoPlay, instanceOptions.usePolicyFile);
              } else {
                flash._load(s.id, instanceOptions.url, !!(instanceOptions.stream), !!(instanceOptions.autoPlay), instanceOptions.loops||1, !!(instanceOptions.autoLoad), instanceOptions.usePolicyFile);
              }
            } catch(e) {
              _wDS('smError', 2);
              debugTS('onload', false);
              catchError({type:'SMSOUND_LOAD_JS_EXCEPTION', fatal:true});
            }
    
          }
  • ¶

    after all of this, ensure sound url is up to date.

          s.url = instanceOptions.url;
    
          return s;
    
        };
    
        /**
         * Unloads a sound, canceling any open HTTP requests.
         *
         * @return {SMSound} The SMSound object
         */
    
        this.unload = function() {
  • ¶

    Flash 8/AS2 can't "close" a stream - fake it by loading an empty URL Flash 9/AS3: Close stream, preventing further load HTML5: Most UAs will use empty URL

          if (s.readyState !== 0) {
    
            sm2._wD(s.id + ': unload()');
    
            if (!s.isHTML5) {
    
              if (fV === 8) {
                flash._unload(s.id, emptyURL);
              } else {
                flash._unload(s.id);
              }
    
            } else {
    
              stop_html5_timer();
    
              if (s._a) {
    
                s._a.pause();
  • ¶

    update empty URL, too

                lastURL = html5Unload(s._a);
    
              }
    
            }
  • ¶

    reset load/status flags

            resetProperties();
    
          }
    
          return s;
    
        };
    
        /**
         * Unloads and destroys a sound.
         */
    
        this.destruct = function(_bFromSM) {
    
          sm2._wD(s.id + ': Destruct');
    
          if (!s.isHTML5) {
  • ¶

    kill sound within Flash Disable the onfailure handler

            s._iO.onfailure = null;
            flash._destroySound(s.id);
    
          } else {
    
            stop_html5_timer();
    
            if (s._a) {
              s._a.pause();
              html5Unload(s._a);
              if (!useGlobalHTML5Audio) {
                remove_html5_events();
              }
  • ¶

    break obvious circular reference

              s._a._s = null;
              s._a = null;
            }
    
          }
    
          if (!_bFromSM) {
  • ¶

    ensure deletion from controller

            sm2.destroySound(s.id, true);
          }
    
        };
    
        /**
         * Begins playing a sound.
         *
         * @param {object} oOptions Optional: Sound options
         * @return {SMSound} The SMSound object
         */
    
        this.play = function(oOptions, _updatePlayState) {
    
          var fN, allowMulti, a, onready,
              audioClone, onended, oncanplay,
              startOK = true,
              exit = null;
  • ¶
          fN = s.id + ': play(): ';
  • ¶

  • ¶

    default to true

          _updatePlayState = (_updatePlayState === _undefined ? true : _updatePlayState);
    
          if (!oOptions) {
            oOptions = {};
          }
  • ¶

    first, use local URL (if specified)

          if (s.url) {
            s._iO.url = s.url;
          }
  • ¶

    mix in any options defined at createSound()

          s._iO = mixin(s._iO, s.options);
  • ¶

    mix in any options specific to this method

          s._iO = mixin(oOptions, s._iO);
    
          s._iO.url = parseURL(s._iO.url);
    
          s.instanceOptions = s._iO;
  • ¶

    RTMP-only

          if (!s.isHTML5 && s._iO.serverURL && !s.connected) {
            if (!s.getAutoPlay()) {
              sm2._wD(fN +' Netstream not connected yet - setting autoPlay');
              s.setAutoPlay(true);
            }
  • ¶

    play will be called in onconnect()

            return s;
          }
    
          if (html5OK(s._iO)) {
            s._setup_html5(s._iO);
            start_html5_timer();
          }
    
          if (s.playState === 1 && !s.paused) {
            allowMulti = s._iO.multiShot;
            if (!allowMulti) {
              sm2._wD(fN + 'Already playing (one-shot)', 1);
              if (s.isHTML5) {
  • ¶

    go back to original position.

                s.setPosition(s._iO.position);
              }
              exit = s;
            } else {
              sm2._wD(fN + 'Already playing (multi-shot)', 1);
            }
          }
    
          if (exit !== null) {
            return exit;
          }
  • ¶

    edge case: play() with explicit URL parameter

          if (oOptions.url && oOptions.url !== s.url) {
  • ¶

    special case for createSound() followed by load() / play() with url; avoid double-load case.

            if (!s.readyState && !s.isHTML5 && fV === 8 && urlOmitted) {
    
              urlOmitted = false;
    
            } else {
  • ¶

    load using merged options

              s.load(s._iO);
    
            }
    
          }
    
          if (!s.loaded) {
    
            if (s.readyState === 0) {
    
              sm2._wD(fN + 'Attempting to load');
  • ¶

    try to get this sound playing ASAP

              if (!s.isHTML5 && !sm2.html5Only) {
  • ¶

    flash: assign directly because setAutoPlay() increments the instanceCount

                s._iO.autoPlay = true;
                s.load(s._iO);
    
              } else if (s.isHTML5) {
  • ¶

    iOS needs this when recycling sounds, loading a new URL on an existing object.

                s.load(s._iO);
    
              } else {
    
                sm2._wD(fN + 'Unsupported type. Exiting.');
                exit = s;
    
              }
  • ¶

    HTML5 hack - re-set instanceOptions?

              s.instanceOptions = s._iO;
    
            } else if (s.readyState === 2) {
    
              sm2._wD(fN + 'Could not load - exiting', 2);
              exit = s;
    
            } else {
    
              sm2._wD(fN + 'Loading - attempting to play...');
    
            }
    
          } else {
  • ¶

    "play()"

            sm2._wD(fN.substr(0, fN.lastIndexOf(':')));
    
          }
    
          if (exit !== null) {
            return exit;
          }
    
          if (!s.isHTML5 && fV === 9 && s.position > 0 && s.position === s.duration) {
  • ¶

    flash 9 needs a position reset if play() is called while at the end of a sound.

            sm2._wD(fN + 'Sound at end, resetting to position:0');
            oOptions.position = 0;
          }
    
          /**
           * Streams will pause when their buffer is full if they are being loaded.
           * In this case paused is true, but the song hasn't started playing yet.
           * If we just call resume() the onplay() callback will never be called.
           * So only call resume() if the position is > 0.
           * Another reason is because options like volume won't have been applied yet.
           * For normal sounds, just resume.
           */
    
          if (s.paused && s.position >= 0 && (!s._iO.serverURL || s.position > 0)) {
  • ¶

    https://gist.github.com/37b17df75cc4d7a90bf6

            sm2._wD(fN + 'Resuming from paused state', 1);
            s.resume();
    
          } else {
    
            s._iO = mixin(oOptions, s._iO);
  • ¶

    apply from/to parameters, if they exist (and not using RTMP)

            if (s._iO.from !== null && s._iO.to !== null && s.instanceCount === 0 && s.playState === 0 && !s._iO.serverURL) {
    
              onready = function() {
  • ¶

    sound "canplay" or onload() re-apply from/to to instance options, and start playback

                s._iO = mixin(oOptions, s._iO);
                s.play(s._iO);
              };
  • ¶

    HTML5 needs to at least have "canplay" fired before seeking.

              if (s.isHTML5 && !s._html5_canplay) {
  • ¶

    this hasn't been loaded yet. load it first, and then do this again.

                sm2._wD(fN + 'Beginning load for from/to case');
    
                s.load({
  • ¶

    note: custom HTML5-only event added for from/to implementation.

                  _oncanplay: onready
                });
    
                exit = false;
    
              } else if (!s.isHTML5 && !s.loaded && (!s.readyState || s.readyState !== 2)) {
  • ¶

    to be safe, preload the whole thing in Flash.

                sm2._wD(fN + 'Preloading for from/to case');
    
                s.load({
                  onload: onready
                });
    
                exit = false;
    
              }
    
              if (exit !== null) {
                return exit;
              }
  • ¶

    otherwise, we're ready to go. re-apply local options, and continue

              s._iO = applyFromTo();
    
            }
  • ¶

    sm2._wD(fN + 'Starting to play');

  • ¶

    increment instance counter, where enabled + supported

            if (!s.instanceCount || s._iO.multiShotEvents || (s.isHTML5 && s._iO.multiShot && !useGlobalHTML5Audio) || (!s.isHTML5 && fV > 8 && !s.getAutoPlay())) {
              s.instanceCount++;
            }
  • ¶

    if first play and onposition parameters exist, apply them now

            if (s._iO.onposition && s.playState === 0) {
              attachOnPosition(s);
            }
    
            s.playState = 1;
            s.paused = false;
    
            s.position = (s._iO.position !== _undefined && !isNaN(s._iO.position) ? s._iO.position : 0);
    
            if (!s.isHTML5) {
              s._iO = policyFix(loopFix(s._iO));
            }
    
            if (s._iO.onplay && _updatePlayState) {
              s._iO.onplay.apply(s);
              onplay_called = true;
            }
    
            s.setVolume(s._iO.volume, true);
            s.setPan(s._iO.pan, true);
    
            if (!s.isHTML5) {
    
              startOK = flash._start(s.id, s._iO.loops || 1, (fV === 9 ? s.position : s.position / msecScale), s._iO.multiShot || false);
    
              if (fV === 9 && !startOK) {
  • ¶

    edge case: no sound hardware, or 32-channel flash ceiling hit. applies only to Flash 9, non-NetStream/MovieStar sounds. http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/media/Sound.html#play%28%29

                sm2._wD(fN + 'No sound hardware, or 32-sound ceiling hit', 2);
                if (s._iO.onplayerror) {
                  s._iO.onplayerror.apply(s);
                }
    
              }
    
            } else {
    
              if (s.instanceCount < 2) {
  • ¶

    HTML5 single-instance case

                start_html5_timer();
    
                a = s._setup_html5();
    
                s.setPosition(s._iO.position);
    
                a.play();
    
              } else {
  • ¶

    HTML5 multi-shot case

                sm2._wD(s.id + ': Cloning Audio() for instance #' + s.instanceCount + '...');
    
                audioClone = new Audio(s._iO.url);
    
                onended = function() {
                  event.remove(audioClone, 'ended', onended);
                  s._onfinish(s);
  • ¶

    cleanup

                  html5Unload(audioClone);
                  audioClone = null;
                };
    
                oncanplay = function() {
                  event.remove(audioClone, 'canplay', oncanplay);
                  try {
                    audioClone.currentTime = s._iO.position/msecScale;
                  } catch(err) {
                    complain(s.id + ': multiShot play() failed to apply position of ' + (s._iO.position/msecScale));
                  }
                  audioClone.play();
                };
    
                event.add(audioClone, 'ended', onended);
  • ¶

    apply volume to clones, too

                if (s._iO.volume !== undefined) {
                  audioClone.volume = Math.max(0, Math.min(1, s._iO.volume/100));
                }
  • ¶

    playing multiple muted sounds? if you do this, you're weird ;) - but let's cover it.

                if (s.muted) {
                  audioClone.muted = true;
                }
    
                if (s._iO.position) {
  • ¶

    HTML5 audio can't seek before onplay() event has fired. wait for canplay, then seek to position and start playback.

                  event.add(audioClone, 'canplay', oncanplay);
                } else {
  • ¶

    begin playback at currentTime: 0

                  audioClone.play();
                }
    
              }
    
            }
    
          }
    
          return s;
    
        };
  • ¶

    just for convenience

        this.start = this.play;
    
        /**
         * Stops playing a sound (and optionally, all sounds)
         *
         * @param {boolean} bAll Optional: Whether to stop all sounds
         * @return {SMSound} The SMSound object
         */
    
        this.stop = function(bAll) {
    
          var instanceOptions = s._iO,
              originalPosition;
    
          if (s.playState === 1) {
    
            sm2._wD(s.id + ': stop()');
    
            s._onbufferchange(0);
            s._resetOnPosition(0);
            s.paused = false;
    
            if (!s.isHTML5) {
              s.playState = 0;
            }
  • ¶

    remove onPosition listeners, if any

            detachOnPosition();
  • ¶

    and "to" position, if set

            if (instanceOptions.to) {
              s.clearOnPosition(instanceOptions.to);
            }
    
            if (!s.isHTML5) {
    
              flash._stop(s.id, bAll);
  • ¶

    hack for netStream: just unload

              if (instanceOptions.serverURL) {
                s.unload();
              }
    
            } else {
    
              if (s._a) {
    
                originalPosition = s.position;
  • ¶

    act like Flash, though

                s.setPosition(0);
  • ¶

    hack: reflect old position for onstop() (also like Flash)

                s.position = originalPosition;
  • ¶

    html5 has no stop() NOTE: pausing means iOS requires interaction to resume.

                s._a.pause();
    
                s.playState = 0;
  • ¶

    and update UI

                s._onTimer();
    
                stop_html5_timer();
    
              }
    
            }
    
            s.instanceCount = 0;
            s._iO = {};
    
            if (instanceOptions.onstop) {
              instanceOptions.onstop.apply(s);
            }
    
          }
    
          return s;
    
        };
    
        /**
         * Undocumented/internal: Sets autoPlay for RTMP.
         *
         * @param {boolean} autoPlay state
         */
    
        this.setAutoPlay = function(autoPlay) {
    
          sm2._wD(s.id + ': Autoplay turned ' + (autoPlay ? 'on' : 'off'));
          s._iO.autoPlay = autoPlay;
    
          if (!s.isHTML5) {
            flash._setAutoPlay(s.id, autoPlay);
            if (autoPlay) {
  • ¶

    only increment the instanceCount if the sound isn't loaded (TODO: verify RTMP)

              if (!s.instanceCount && s.readyState === 1) {
                s.instanceCount++;
                sm2._wD(s.id + ': Incremented instance count to '+s.instanceCount);
              }
            }
          }
    
        };
    
        /**
         * Undocumented/internal: Returns the autoPlay boolean.
         *
         * @return {boolean} The current autoPlay value
         */
    
        this.getAutoPlay = function() {
    
          return s._iO.autoPlay;
    
        };
    
        /**
         * Sets the position of a sound.
         *
         * @param {number} nMsecOffset Position (milliseconds)
         * @return {SMSound} The SMSound object
         */
    
        this.setPosition = function(nMsecOffset) {
    
          if (nMsecOffset === _undefined) {
            nMsecOffset = 0;
          }
    
          var position, position1K,
  • ¶

    Use the duration from the instance options, if we don't have a track duration yet. position >= 0 and <= current available (loaded) duration

              offset = (s.isHTML5 ? Math.max(nMsecOffset, 0) : Math.min(s.duration || s._iO.duration, Math.max(nMsecOffset, 0)));
    
          s.position = offset;
          position1K = s.position/msecScale;
          s._resetOnPosition(s.position);
          s._iO.position = offset;
    
          if (!s.isHTML5) {
    
            position = (fV === 9 ? s.position : position1K);
    
            if (s.readyState && s.readyState !== 2) {
  • ¶

    if paused or not playing, will not resume (by playing)

              flash._setPosition(s.id, position, (s.paused || !s.playState), s._iO.multiShot);
            }
    
          } else if (s._a) {
  • ¶

    Set the position in the canplay handler if the sound is not ready yet

            if (s._html5_canplay) {
    
              if (s._a.currentTime !== position1K) {
    
                /**
                 * DOM/JS errors/exceptions to watch out for:
                 * if seek is beyond (loaded?) position, "DOM exception 11"
                 * "INDEX_SIZE_ERR": DOM exception 1
                 */
                sm2._wD(s.id + ': setPosition('+position1K+')');
    
                try {
                  s._a.currentTime = position1K;
                  if (s.playState === 0 || s.paused) {
  • ¶

    allow seek without auto-play/resume

                    s._a.pause();
                  }
                } catch(e) {
                  sm2._wD(s.id + ': setPosition(' + position1K + ') failed: ' + e.message, 2);
                }
    
              }
    
            } else if (position1K) {
  • ¶

    warn on non-zero seek attempts

              sm2._wD(s.id + ': setPosition(' + position1K + '): Cannot seek yet, sound not ready', 2);
              return s;
    
            }
    
            if (s.paused) {
  • ¶

    if paused, refresh UI right away force update

              s._onTimer(true);
    
            }
    
          }
    
          return s;
    
        };
    
        /**
         * Pauses sound playback.
         *
         * @return {SMSound} The SMSound object
         */
    
        this.pause = function(_bCallFlash) {
    
          if (s.paused || (s.playState === 0 && s.readyState !== 1)) {
            return s;
          }
    
          sm2._wD(s.id + ': pause()');
          s.paused = true;
    
          if (!s.isHTML5) {
            if (_bCallFlash || _bCallFlash === _undefined) {
              flash._pause(s.id, s._iO.multiShot);
            }
          } else {
            s._setup_html5().pause();
            stop_html5_timer();
          }
    
          if (s._iO.onpause) {
            s._iO.onpause.apply(s);
          }
    
          return s;
    
        };
    
        /**
         * Resumes sound playback.
         *
         * @return {SMSound} The SMSound object
         */
    
        /**
         * When auto-loaded streams pause on buffer full they have a playState of 0.
         * We need to make sure that the playState is set to 1 when these streams "resume".
         * When a paused stream is resumed, we need to trigger the onplay() callback if it
         * hasn't been called already. In this case since the sound is being played for the
         * first time, I think it's more appropriate to call onplay() rather than onresume().
         */
    
        this.resume = function() {
    
          var instanceOptions = s._iO;
    
          if (!s.paused) {
            return s;
          }
    
          sm2._wD(s.id + ': resume()');
          s.paused = false;
          s.playState = 1;
    
          if (!s.isHTML5) {
            if (instanceOptions.isMovieStar && !instanceOptions.serverURL) {
  • ¶

    Bizarre Webkit bug (Chrome reported via 8tracks.com dudes): AAC content paused for 30+ seconds(?) will not resume without a reposition.

              s.setPosition(s.position);
            }
  • ¶

    flash method is toggle-based (pause/resume)

            flash._pause(s.id, instanceOptions.multiShot);
          } else {
            s._setup_html5().play();
            start_html5_timer();
          }
    
          if (!onplay_called && instanceOptions.onplay) {
            instanceOptions.onplay.apply(s);
            onplay_called = true;
          } else if (instanceOptions.onresume) {
            instanceOptions.onresume.apply(s);
          }
    
          return s;
    
        };
    
        /**
         * Toggles sound playback.
         *
         * @return {SMSound} The SMSound object
         */
    
        this.togglePause = function() {
    
          sm2._wD(s.id + ': togglePause()');
    
          if (s.playState === 0) {
            s.play({
              position: (fV === 9 && !s.isHTML5 ? s.position : s.position / msecScale)
            });
            return s;
          }
    
          if (s.paused) {
            s.resume();
          } else {
            s.pause();
          }
    
          return s;
    
        };
    
        /**
         * Sets the panning (L-R) effect.
         *
         * @param {number} nPan The pan value (-100 to 100)
         * @return {SMSound} The SMSound object
         */
    
        this.setPan = function(nPan, bInstanceOnly) {
    
          if (nPan === _undefined) {
            nPan = 0;
          }
    
          if (bInstanceOnly === _undefined) {
            bInstanceOnly = false;
          }
    
          if (!s.isHTML5) {
            flash._setPan(s.id, nPan);
          } // else { no HTML5 pan? }
    
          s._iO.pan = nPan;
    
          if (!bInstanceOnly) {
            s.pan = nPan;
            s.options.pan = nPan;
          }
    
          return s;
    
        };
    
        /**
         * Sets the volume.
         *
         * @param {number} nVol The volume value (0 to 100)
         * @return {SMSound} The SMSound object
         */
    
        this.setVolume = function(nVol, _bInstanceOnly) {
    
          /**
           * Note: Setting volume has no effect on iOS "special snowflake" devices.
           * Hardware volume control overrides software, and volume
           * will always return 1 per Apple docs. (iOS 4 + 5.)
           * http://developer.apple.com/library/safari/documentation/AudioVideo/Conceptual/HTML-canvas-guide/AddingSoundtoCanvasAnimations/AddingSoundtoCanvasAnimations.html
           */
    
          if (nVol === _undefined) {
            nVol = 100;
          }
    
          if (_bInstanceOnly === _undefined) {
            _bInstanceOnly = false;
          }
    
          if (!s.isHTML5) {
            flash._setVolume(s.id, (sm2.muted && !s.muted) || s.muted?0:nVol);
          } else if (s._a) {
            if (sm2.muted && !s.muted) {
              s.muted = true;
              s._a.muted = true;
            }
  • ¶

    valid range: 0-1

            s._a.volume = Math.max(0, Math.min(1, nVol/100));
          }
    
          s._iO.volume = nVol;
    
          if (!_bInstanceOnly) {
            s.volume = nVol;
            s.options.volume = nVol;
          }
    
          return s;
    
        };
    
        /**
         * Mutes the sound.
         *
         * @return {SMSound} The SMSound object
         */
    
        this.mute = function() {
    
          s.muted = true;
    
          if (!s.isHTML5) {
            flash._setVolume(s.id, 0);
          } else if (s._a) {
            s._a.muted = true;
          }
    
          return s;
    
        };
    
        /**
         * Unmutes the sound.
         *
         * @return {SMSound} The SMSound object
         */
    
        this.unmute = function() {
    
          s.muted = false;
          var hasIO = (s._iO.volume !== _undefined);
    
          if (!s.isHTML5) {
            flash._setVolume(s.id, hasIO?s._iO.volume:s.options.volume);
          } else if (s._a) {
            s._a.muted = false;
          }
    
          return s;
    
        };
    
        /**
         * Toggles the muted state of a sound.
         *
         * @return {SMSound} The SMSound object
         */
    
        this.toggleMute = function() {
    
          return (s.muted?s.unmute():s.mute());
    
        };
    
        /**
         * Registers a callback to be fired when a sound reaches a given position during playback.
         *
         * @param {number} nPosition The position to watch for
         * @param {function} oMethod The relevant callback to fire
         * @param {object} oScope Optional: The scope to apply the callback to
         * @return {SMSound} The SMSound object
         */
    
        this.onPosition = function(nPosition, oMethod, oScope) {
  • ¶

    TODO: basic dupe checking?

          onPositionItems.push({
            position: parseInt(nPosition, 10),
            method: oMethod,
            scope: (oScope !== _undefined ? oScope : s),
            fired: false
          });
    
          return s;
    
        };
  • ¶

    legacy/backwards-compability: lower-case method name

        this.onposition = this.onPosition;
    
        /**
         * Removes registered callback(s) from a sound, by position and/or callback.
         *
         * @param {number} nPosition The position to clear callback(s) for
         * @param {function} oMethod Optional: Identify one callback to be removed when multiple listeners exist for one position
         * @return {SMSound} The SMSound object
         */
    
        this.clearOnPosition = function(nPosition, oMethod) {
    
          var i;
    
          nPosition = parseInt(nPosition, 10);
    
          if (isNaN(nPosition)) {
  • ¶

    safety check

            return false;
          }
    
          for (i=0; i < onPositionItems.length; i++) {
    
            if (nPosition === onPositionItems[i].position) {
  • ¶

    remove this item if no method was specified, or, if the method matches

              if (!oMethod || (oMethod === onPositionItems[i].method)) {
                if (onPositionItems[i].fired) {
  • ¶

    decrement "fired" counter, too

                  onPositionFired--;
                }
                onPositionItems.splice(i, 1);
              }
            }
    
          }
    
        };
    
        this._processOnPosition = function() {
    
          var i, item, j = onPositionItems.length;
    		
          if (!j || !s.playState || onPositionFired >= j) {
            return false;
          }
    
          for (i=j-1; i >= 0; i--) {
            item = onPositionItems[i];
            if (!item.fired && s.position >= item.position) {
              item.fired = true;
              onPositionFired++;
              item.method.apply(item.scope, [item.position]);
    		  j = onPositionItems.length; //  reset j -- onPositionItems.length can be changed in the item callback above... occasionally breaking the loop.
            }
          }
    	
          return true;
    
        };
    
        this._resetOnPosition = function(nPosition) {
  • ¶

    reset "fired" for items interested in this position

          var i, item, j = onPositionItems.length;
    
          if (!j) {
            return false;
          }
    
          for (i=j-1; i >= 0; i--) {
            item = onPositionItems[i];
            if (item.fired && nPosition <= item.position) {
              item.fired = false;
              onPositionFired--;
            }
          }
    
          return true;
    
        };
    
        /**
         * SMSound() private internals
         * --------------------------------
         */
    
        applyFromTo = function() {
    
          var instanceOptions = s._iO,
              f = instanceOptions.from,
              t = instanceOptions.to,
              start, end;
    
          end = function() {
  • ¶

    end has been reached.

            sm2._wD(s.id + ': "To" time of ' + t + ' reached.');
  • ¶

    detach listener

            s.clearOnPosition(t, end);
  • ¶

    stop should clear this, too

            s.stop();
    
          };
    
          start = function() {
    
            sm2._wD(s.id + ': Playing "from" ' + f);
  • ¶

    add listener for end

            if (t !== null && !isNaN(t)) {
              s.onPosition(t, end);
            }
    
          };
    
          if (f !== null && !isNaN(f)) {
  • ¶

    apply to instance options, guaranteeing correct start position.

            instanceOptions.position = f;
  • ¶

    multiShot timing can't be tracked, so prevent that.

            instanceOptions.multiShot = false;
    
            start();
    
          }
  • ¶

    return updated instanceOptions including starting position

          return instanceOptions;
    
        };
    
        attachOnPosition = function() {
    
          var item,
              op = s._iO.onposition;
  • ¶

    attach onposition things, if any, now.

          if (op) {
    
            for (item in op) {
              if (op.hasOwnProperty(item)) {
                s.onPosition(parseInt(item, 10), op[item]);
              }
            }
    
          }
    
        };
    
        detachOnPosition = function() {
    
          var item,
              op = s._iO.onposition;
  • ¶

    detach any onposition()-style listeners.

          if (op) {
    
            for (item in op) {
              if (op.hasOwnProperty(item)) {
                s.clearOnPosition(parseInt(item, 10));
              }
            }
    
          }
    
        };
    
        start_html5_timer = function() {
    
          if (s.isHTML5) {
            startTimer(s);
          }
    
        };
    
        stop_html5_timer = function() {
    
          if (s.isHTML5) {
            stopTimer(s);
          }
    
        };
    
        resetProperties = function(retainPosition) {
    
          if (!retainPosition) {
            onPositionItems = [];
            onPositionFired = 0;
          }
    
          onplay_called = false;
    
          s._hasTimer = null;
          s._a = null;
          s._html5_canplay = false;
          s.bytesLoaded = null;
          s.bytesTotal = null;
          s.duration = (s._iO && s._iO.duration ? s._iO.duration : null);
          s.durationEstimate = null;
          s.buffered = [];
  • ¶

    legacy: 1D array

          s.eqData = [];
    
          s.eqData.left = [];
          s.eqData.right = [];
    
          s.failures = 0;
          s.isBuffering = false;
          s.instanceOptions = {};
          s.instanceCount = 0;
          s.loaded = false;
          s.metadata = {};
  • ¶

    0 = uninitialised, 1 = loading, 2 = failed/error, 3 = loaded/success

          s.readyState = 0;
    
          s.muted = false;
          s.paused = false;
    
          s.peakData = {
            left: 0,
            right: 0
          };
    
          s.waveformData = {
            left: [],
            right: []
          };
    
          s.playState = 0;
          s.position = null;
    
          s.id3 = {};
    
        };
    
        resetProperties();
    
        /**
         * Pseudo-private SMSound internals
         * --------------------------------
         */
    
        this._onTimer = function(bForce) {
    
          /**
           * HTML5-only _whileplaying() etc.
           * called from both HTML5 native events, and polling/interval-based timers
           * mimics flash and fires only when time/duration change, so as to be polling-friendly
           */
    
          var duration, isNew = false, time, x = {};
    
          if (s._hasTimer || bForce) {
  • ¶

    TODO: May not need to track readyState (1 = loading)

            if (s._a && (bForce || ((s.playState > 0 || s.readyState === 1) && !s.paused))) {
    
              duration = s._get_html5_duration();
    
              if (duration !== lastHTML5State.duration) {
    
                lastHTML5State.duration = duration;
                s.duration = duration;
                isNew = true;
    
              }
  • ¶

    TODO: investigate why this goes wack if not set/re-set each time.

              s.durationEstimate = s.duration;
    
              time = (s._a.currentTime * msecScale || 0);
    
              if (time !== lastHTML5State.time) {
    
                lastHTML5State.time = time;
                isNew = true;
    
              }
    
              if (isNew || bForce) {
    
                s._whileplaying(time,x,x,x,x);
    
              }
    
            }/* else {
  • ¶

    sm2._wD('_onTimer: Warn for "'+s.id+'": '+(!s._a?'Could not find element. ':'')+(s.playState === 0?'playState bad, 0?':'playState = '+s.playState+', OK'));

              return false;
    
            }*/
    
            return isNew;
    
          }
    
        };
    
        this._get_html5_duration = function() {
    
          var instanceOptions = s._iO,
  • ¶

    if audio object exists, use its duration - else, instance option duration (if provided - it's a hack, really, and should be retired) OR null

              d = (s._a && s._a.duration ? s._a.duration*msecScale : (instanceOptions && instanceOptions.duration ? instanceOptions.duration : null)),
              result = (d && !isNaN(d) && d !== Infinity ? d : null);
    
          return result;
    
        };
    
        this._apply_loop = function(a, nLoops) {
    
          /**
           * boolean instead of "loop", for webkit? - spec says string. http://www.w3.org/TR/html-markup/audio.html#audio.attrs.loop
           * note that loop is either off or infinite under HTML5, unlike Flash which allows arbitrary loop counts to be specified.
           */
  • ¶
          if (!a.loop && nLoops > 1) {
            sm2._wD('Note: Native HTML5 looping is infinite.', 1);
          }
  • ¶

          a.loop = (nLoops > 1 ? 'loop' : '');
    
        };
    
        this._setup_html5 = function(oOptions) {
    
          var instanceOptions = mixin(s._iO, oOptions),
              a = useGlobalHTML5Audio ? globalHTML5Audio : s._a,
              dURL = decodeURI(instanceOptions.url),
              sameURL;
    
          /**
           * "First things first, I, Poppa..." (reset the previous state of the old sound, if playing)
           * Fixes case with devices that can only play one sound at a time
           * Otherwise, other sounds in mid-play will be terminated without warning and in a stuck state
           */
    
          if (useGlobalHTML5Audio) {
    
            if (dURL === decodeURI(lastGlobalHTML5URL)) {
  • ¶

    global HTML5 audio: re-use of URL

              sameURL = true;
            }
    
          } else if (dURL === decodeURI(lastURL)) {
  • ¶

    options URL is the same as the "last" URL, and we used (loaded) it

            sameURL = true;
    
          }
    
          if (a) {
    
            if (a._s) {
    
              if (useGlobalHTML5Audio) {
    
                if (a._s && a._s.playState && !sameURL) {
  • ¶

    global HTML5 audio case, and loading a new URL. stop the currently-playing one.

                  a._s.stop();
    
                }
    
              } else if (!useGlobalHTML5Audio && dURL === decodeURI(lastURL)) {
  • ¶

    non-global HTML5 reuse case: same url, ignore request

                s._apply_loop(a, instanceOptions.loops);
    
                return a;
    
              }
    
            }
    
            if (!sameURL) {
  • ¶

    don't retain onPosition() stuff with new URLs.

              if (lastURL) {
                resetProperties(false);
              }
  • ¶

    assign new HTML5 URL

              a.src = instanceOptions.url;
    
              s.url = instanceOptions.url;
    
              lastURL = instanceOptions.url;
    
              lastGlobalHTML5URL = instanceOptions.url;
    
              a._called_load = false;
    
            }
    
          } else {
    
            if (instanceOptions.autoLoad || instanceOptions.autoPlay) {
    
              s._a = new Audio(instanceOptions.url);
              s._a.load();
    
            } else {
  • ¶

    null for stupid Opera 9.64 case

              s._a = (isOpera && opera.version() < 10 ? new Audio(null) : new Audio());
    
            }
  • ¶

    assign local reference

            a = s._a;
    
            a._called_load = false;
    
            if (useGlobalHTML5Audio) {
    
              globalHTML5Audio = a;
    
            }
    
          }
    
          s.isHTML5 = true;
  • ¶

    store a ref on the track

          s._a = a;
  • ¶

    store a ref on the audio

          a._s = s;
    
          add_html5_events();
    
          s._apply_loop(a, instanceOptions.loops);
    
          if (instanceOptions.autoLoad || instanceOptions.autoPlay) {
    
            s.load();
    
          } else {
  • ¶

    early HTML5 implementation (non-standard)

            a.autobuffer = false;
  • ¶

    standard ('none' is also an option.)

            a.preload = 'auto';
    
          }
    
          return a;
    
        };
    
        add_html5_events = function() {
    
          if (s._a._added_events) {
            return false;
          }
    
          var f;
    
          function add(oEvt, oFn, bCapture) {
            return s._a ? s._a.addEventListener(oEvt, oFn, bCapture||false) : null;
          }
    
          s._a._added_events = true;
    
          for (f in html5_events) {
            if (html5_events.hasOwnProperty(f)) {
              add(f, html5_events[f]);
            }
          }
    
          return true;
    
        };
    
        remove_html5_events = function() {
  • ¶

    Remove event listeners

          var f;
    
          function remove(oEvt, oFn, bCapture) {
            return (s._a ? s._a.removeEventListener(oEvt, oFn, bCapture||false) : null);
          }
    
          sm2._wD(s.id + ': Removing event listeners');
          s._a._added_events = false;
    
          for (f in html5_events) {
            if (html5_events.hasOwnProperty(f)) {
              remove(f, html5_events[f]);
            }
          }
    
        };
    
        /**
         * Pseudo-private event internals
         * ------------------------------
         */
    
        this._onload = function(nSuccess) {
    
          var fN,
  • ¶

    check for duration to prevent false positives from flash 8 when loading from cache.

              loadOK = !!nSuccess || (!s.isHTML5 && fV === 8 && s.duration);
  • ¶
          fN = s.id + ': ';
          sm2._wD(fN + (loadOK ? 'onload()' : 'Failed to load / invalid sound?' + (!s.duration ? ' Zero-length duration reported.' : ' -') + ' (' + s.url + ')'), (loadOK ? 1 : 2));
          if (!loadOK && !s.isHTML5) {
            if (sm2.sandbox.noRemote === true) {
              sm2._wD(fN + str('noNet'), 1);
            }
            if (sm2.sandbox.noLocal === true) {
              sm2._wD(fN + str('noLocal'), 1);
            }
          }
  • ¶

          s.loaded = loadOK;
          s.readyState = loadOK?3:2;
          s._onbufferchange(0);
    
          if (s._iO.onload) {
            wrapCallback(s, function() {
              s._iO.onload.apply(s, [loadOK]);
            });
          }
    
          return true;
    
        };
    
        this._onbufferchange = function(nIsBuffering) {
    
          if (s.playState === 0) {
  • ¶

    ignore if not playing

            return false;
          }
    
          if ((nIsBuffering && s.isBuffering) || (!nIsBuffering && !s.isBuffering)) {
            return false;
          }
    
          s.isBuffering = (nIsBuffering === 1);
          if (s._iO.onbufferchange) {
            sm2._wD(s.id + ': Buffer state change: ' + nIsBuffering);
            s._iO.onbufferchange.apply(s);
          }
    
          return true;
    
        };
    
        /**
         * Playback may have stopped due to buffering, or related reason.
         * This state can be encountered on iOS < 6 when auto-play is blocked.
         */
    
        this._onsuspend = function() {
    
          if (s._iO.onsuspend) {
            sm2._wD(s.id + ': Playback suspended');
            s._iO.onsuspend.apply(s);
          }
    
          return true;
    
        };
    
        /**
         * flash 9/movieStar + RTMP-only method, should fire only once at most
         * at this point we just recreate failed sounds rather than trying to reconnect
         */
    
        this._onfailure = function(msg, level, code) {
    
          s.failures++;
          sm2._wD(s.id + ': Failures = ' + s.failures);
    
          if (s._iO.onfailure && s.failures === 1) {
            s._iO.onfailure(s, msg, level, code);
          } else {
            sm2._wD(s.id + ': Ignoring failure');
          }
    
        };
    
        this._onfinish = function() {
  • ¶

    store local copy before it gets trashed...

          var io_onfinish = s._iO.onfinish;
    
          s._onbufferchange(0);
          s._resetOnPosition(0);
  • ¶

    reset some state items

          if (s.instanceCount) {
    
            s.instanceCount--;
    
            if (!s.instanceCount) {
  • ¶

    remove onPosition listeners, if any

              detachOnPosition();
  • ¶

    reset instance options

              s.playState = 0;
              s.paused = false;
              s.instanceCount = 0;
              s.instanceOptions = {};
              s._iO = {};
              stop_html5_timer();
  • ¶

    reset position, too

              if (s.isHTML5) {
                s.position = 0;
              }
    
            }
    
            if (!s.instanceCount || s._iO.multiShotEvents) {
  • ¶

    fire onfinish for last, or every instance

              if (io_onfinish) {
                sm2._wD(s.id + ': onfinish()');
                wrapCallback(s, function() {
                  io_onfinish.apply(s);
                });
              }
            }
    
          }
    
        };
    
        this._whileloading = function(nBytesLoaded, nBytesTotal, nDuration, nBufferLength) {
    
          var instanceOptions = s._iO;
    
          s.bytesLoaded = nBytesLoaded;
          s.bytesTotal = nBytesTotal;
          s.duration = Math.floor(nDuration);
          s.bufferLength = nBufferLength;
    
          if (!s.isHTML5 && !instanceOptions.isMovieStar) {
    
            if (instanceOptions.duration) {
  • ¶

    use duration from options, if specified and larger. nobody should be specifying duration in options, actually, and it should be retired.

              s.durationEstimate = (s.duration > instanceOptions.duration) ? s.duration : instanceOptions.duration;
            } else {
              s.durationEstimate = parseInt((s.bytesTotal / s.bytesLoaded) * s.duration, 10);
            }
    
          } else {
    
            s.durationEstimate = s.duration;
    
          }
  • ¶

    for flash, reflect sequential-load-style buffering

          if (!s.isHTML5) {
            s.buffered = [{
              'start': 0,
              'end': s.duration
            }];
          }
  • ¶

    allow whileloading to fire even if "load" fired under HTML5, due to HTTP range/partials

          if ((s.readyState !== 3 || s.isHTML5) && instanceOptions.whileloading) {
            instanceOptions.whileloading.apply(s);
          }
    
        };
    
        this._whileplaying = function(nPosition, oPeakData, oWaveformDataLeft, oWaveformDataRight, oEQData) {
    
          var instanceOptions = s._iO,
              eqLeft;
    
          if (isNaN(nPosition) || nPosition === null) {
  • ¶

    flash safety net

            return false;
          }
  • ¶

    Safari HTML5 play() may return small -ve values when starting from position: 0, eg. -50.120396875. Unexpected/invalid per W3, I think. Normalize to 0.

          s.position = Math.max(0, nPosition);
    
          s._processOnPosition();
    
          if (!s.isHTML5 && fV > 8) {
    
            if (instanceOptions.usePeakData && oPeakData !== _undefined && oPeakData) {
              s.peakData = {
                left: oPeakData.leftPeak,
                right: oPeakData.rightPeak
              };
            }
    
            if (instanceOptions.useWaveformData && oWaveformDataLeft !== _undefined && oWaveformDataLeft) {
              s.waveformData = {
                left: oWaveformDataLeft.split(','),
                right: oWaveformDataRight.split(',')
              };
            }
    
            if (instanceOptions.useEQData) {
              if (oEQData !== _undefined && oEQData && oEQData.leftEQ) {
                eqLeft = oEQData.leftEQ.split(',');
                s.eqData = eqLeft;
                s.eqData.left = eqLeft;
                if (oEQData.rightEQ !== _undefined && oEQData.rightEQ) {
                  s.eqData.right = oEQData.rightEQ.split(',');
                }
              }
            }
    
          }
    
          if (s.playState === 1) {
  • ¶

    special case/hack: ensure buffering is false if loading from cache (and not yet started)

            if (!s.isHTML5 && fV === 8 && !s.position && s.isBuffering) {
              s._onbufferchange(0);
            }
    
            if (instanceOptions.whileplaying) {
  • ¶

    flash may call after actual finish

              instanceOptions.whileplaying.apply(s);
            }
    
          }
    
          return true;
    
        };
    
        this._oncaptiondata = function(oData) {
    
          /**
           * internal: flash 9 + NetStream (MovieStar/RTMP-only) feature
           *
           * @param {object} oData
           */
    
          sm2._wD(s.id + ': Caption data received.');
    
          s.captiondata = oData;
    
          if (s._iO.oncaptiondata) {
            s._iO.oncaptiondata.apply(s, [oData]);
          }
    
        };
    
        this._onmetadata = function(oMDProps, oMDData) {
    
          /**
           * internal: flash 9 + NetStream (MovieStar/RTMP-only) feature
           * RTMP may include song title, MovieStar content may include encoding info
           *
           * @param {array} oMDProps (names)
           * @param {array} oMDData (values)
           */
    
          sm2._wD(s.id + ': Metadata received.');
    
          var oData = {}, i, j;
    
          for (i = 0, j = oMDProps.length; i < j; i++) {
            oData[oMDProps[i]] = oMDData[i];
          }
          s.metadata = oData;
    
          if (s._iO.onmetadata) {
            s._iO.onmetadata.apply(s);
          }
    
        };
    
        this._onid3 = function(oID3Props, oID3Data) {
    
          /**
           * internal: flash 8 + flash 9 ID3 feature
           * may include artist, song title etc.
           *
           * @param {array} oID3Props (names)
           * @param {array} oID3Data (values)
           */
    
          sm2._wD(s.id + ': ID3 data received.');
    
          var oData = [], i, j;
    
          for (i = 0, j = oID3Props.length; i < j; i++) {
            oData[oID3Props[i]] = oID3Data[i];
          }
          s.id3 = mixin(s.id3, oData);
    
          if (s._iO.onid3) {
            s._iO.onid3.apply(s);
          }
    
        };
  • ¶

    flash/RTMP-only

        this._onconnect = function(bSuccess) {
    
          bSuccess = (bSuccess === 1);
          sm2._wD(s.id + ': ' + (bSuccess ? 'Connected.' : 'Failed to connect? - ' + s.url), (bSuccess ? 1 : 2));
          s.connected = bSuccess;
    
          if (bSuccess) {
    
            s.failures = 0;
    
            if (idCheck(s.id)) {
              if (s.getAutoPlay()) {
  • ¶

    only update the play state if auto playing

                s.play(_undefined, s.getAutoPlay());
              } else if (s._iO.autoLoad) {
                s.load();
              }
            }
    
            if (s._iO.onconnect) {
              s._iO.onconnect.apply(s, [bSuccess]);
            }
    
          }
    
        };
    
        this._ondataerror = function(sError) {
  • ¶

    flash 9 wave/eq data handler hack: called at start, and end from flash at/after onfinish()

          if (s.playState > 0) {
            sm2._wD(s.id + ': Data error: ' + sError);
            if (s._iO.ondataerror) {
              s._iO.ondataerror.apply(s);
            }
          }
    
        };
  • ¶
        this._debug();
  • ¶

      }; // SMSound()
    
      /**
       * Private SoundManager internals
       * ------------------------------
       */
    
      getDocument = function() {
    
        return (doc.body || doc.getElementsByTagName('div')[0]);
    
      };
    
      id = function(sID) {
    
        return doc.getElementById(sID);
    
      };
    
      mixin = function(oMain, oAdd) {
  • ¶

    non-destructive merge

        var o1 = (oMain || {}), o2, o;
  • ¶

    if unspecified, o2 is the default options object

        o2 = (oAdd === _undefined ? sm2.defaultOptions : oAdd);
    
        for (o in o2) {
    
          if (o2.hasOwnProperty(o) && o1[o] === _undefined) {
    
            if (typeof o2[o] !== 'object' || o2[o] === null) {
  • ¶

    assign directly

              o1[o] = o2[o];
    
            } else {
  • ¶

    recurse through o2

              o1[o] = mixin(o1[o], o2[o]);
    
            }
    
          }
    
        }
    
        return o1;
    
      };
    
      wrapCallback = function(oSound, callback) {
    
        /**
         * 03/03/2013: Fix for Flash Player 11.6.602.171 + Flash 8 (flashVersion = 8) SWF issue
         * setTimeout() fix for certain SMSound callbacks like onload() and onfinish(), where subsequent calls like play() and load() fail when Flash Player 11.6.602.171 is installed, and using soundManager with flashVersion = 8 (which is the default).
         * Not sure of exact cause. Suspect race condition and/or invalid (NaN-style) position argument trickling down to the next JS -> Flash _start() call, in the play() case.
         * Fix: setTimeout() to yield, plus safer null / NaN checking on position argument provided to Flash.
         * https://getsatisfaction.com/schillmania/topics/recent_chrome_update_seems_to_have_broken_my_sm2_audio_player
         */
        if (!oSound.isHTML5 && fV === 8) {
          window.setTimeout(callback, 0);
        } else {
          callback();
        }
    
      };
  • ¶

    additional soundManager properties that soundManager.setup() will accept

      extraOptions = {
        'onready': 1,
        'ontimeout': 1,
        'defaultOptions': 1,
        'flash9Options': 1,
        'movieStarOptions': 1
      };
    
      assign = function(o, oParent) {
    
        /**
         * recursive assignment of properties, soundManager.setup() helper
         * allows property assignment based on whitelist
         */
    
        var i,
            result = true,
            hasParent = (oParent !== _undefined),
            setupOptions = sm2.setupOptions,
            bonusOptions = extraOptions;
  • ¶
  • ¶

    if soundManager.setup() called, show accepted parameters.

        if (o === _undefined) {
    
          result = [];
    
          for (i in setupOptions) {
    
            if (setupOptions.hasOwnProperty(i)) {
              result.push(i);
            }
    
          }
    
          for (i in bonusOptions) {
    
            if (bonusOptions.hasOwnProperty(i)) {
    
              if (typeof sm2[i] === 'object') {
    
                result.push(i+': {...}');
    
              } else if (sm2[i] instanceof Function) {
    
                result.push(i+': function() {...}');
    
              } else {
    
                result.push(i);
    
              }
    
            }
    
          }
    
          sm2._wD(str('setup', result.join(', ')));
    
          return false;
    
        }
  • ¶

        for (i in o) {
    
          if (o.hasOwnProperty(i)) {
  • ¶

    if not an {object} we want to recurse through...

            if (typeof o[i] !== 'object' || o[i] === null || o[i] instanceof Array || o[i] instanceof RegExp) {
  • ¶

    check "allowed" options

              if (hasParent && bonusOptions[oParent] !== _undefined) {
  • ¶

    valid recursive / nested object option, eg., { defaultOptions: { volume: 50 } }

                sm2[oParent][i] = o[i];
    
              } else if (setupOptions[i] !== _undefined) {
  • ¶

    special case: assign to setupOptions object, which soundManager property references

                sm2.setupOptions[i] = o[i];
  • ¶

    assign directly to soundManager, too

                sm2[i] = o[i];
    
              } else if (bonusOptions[i] === _undefined) {
  • ¶

    invalid or disallowed parameter. complain.

                complain(str((sm2[i] === _undefined ? 'setupUndef' : 'setupError'), i), 2);
    
                result = false;
    
              } else {
    
                /**
                 * valid extraOptions (bonusOptions) parameter.
                 * is it a method, like onready/ontimeout? call it.
                 * multiple parameters should be in an array, eg. soundManager.setup({onready: [myHandler, myScope]});
                 */
    
                if (sm2[i] instanceof Function) {
    
                  sm2[i].apply(sm2, (o[i] instanceof Array? o[i] : [o[i]]));
    
                } else {
  • ¶

    good old-fashioned direct assignment

                  sm2[i] = o[i];
    
                }
    
              }
    
            } else {
  • ¶

    recursion case, eg., { defaultOptions: { ... } }

              if (bonusOptions[i] === _undefined) {
  • ¶

    invalid or disallowed parameter. complain.

                complain(str((sm2[i] === _undefined ? 'setupUndef' : 'setupError'), i), 2);
    
                result = false;
    
              } else {
  • ¶

    recurse through object

                return assign(o[i], i);
    
              }
    
            }
    
          }
    
        }
    
        return result;
    
      };
    
      function preferFlashCheck(kind) {
  • ¶

    whether flash should play a given type

        return (sm2.preferFlash && hasFlash && !sm2.ignoreFlash && (sm2.flash[kind] !== _undefined && sm2.flash[kind]));
    
      }
    
      /**
       * Internal DOM2-level event helpers
       * ---------------------------------
       */
    
      event = (function() {
  • ¶

    normalize event methods

        var old = (window.attachEvent),
        evt = {
          add: (old?'attachEvent':'addEventListener'),
          remove: (old?'detachEvent':'removeEventListener')
        };
  • ¶

    normalize "on" event prefix, optional capture argument

        function getArgs(oArgs) {
    
          var args = slice.call(oArgs),
              len = args.length;
    
          if (old) {
  • ¶

    prefix

            args[1] = 'on' + args[1];
            if (len > 3) {
  • ¶

    no capture

              args.pop();
            }
          } else if (len === 3) {
            args.push(false);
          }
    
          return args;
    
        }
    
        function apply(args, sType) {
  • ¶

    normalize and call the event method, with the proper arguments

          var element = args.shift(),
              method = [evt[sType]];
    
          if (old) {
  • ¶

    old IE can't do apply().

            element[method](args[0], args[1]);
          } else {
            element[method].apply(element, args);
          }
    
        }
    
        function add() {
    
          apply(getArgs(arguments), 'add');
    
        }
    
        function remove() {
    
          apply(getArgs(arguments), 'remove');
    
        }
    
        return {
          'add': add,
          'remove': remove
        };
    
      }());
    
      /**
       * Internal HTML5 event handling
       * -----------------------------
       */
    
      function html5_event(oFn) {
  • ¶

    wrap html5 event handlers so we don't call them on destroyed and/or unloaded sounds

        return function(e) {
    
          var s = this._s,
              result;
    
          if (!s || !s._a) {
  • ¶
            if (s && s.id) {
              sm2._wD(s.id + ': Ignoring ' + e.type);
            } else {
              sm2._wD(h5 + 'Ignoring ' + e.type);
            }
  • ¶

            result = null;
          } else {
            result = oFn.call(this, e);
          }
    
          return result;
    
        };
    
      }
    
      html5_events = {
  • ¶

    HTML5 event-name-to-handler map

        abort: html5_event(function() {
    
          sm2._wD(this._s.id + ': abort');
    
        }),
  • ¶

    enough has loaded to play

        canplay: html5_event(function() {
    
          var s = this._s,
              position1K;
    
          if (s._html5_canplay) {
  • ¶

    this event has already fired. ignore.

            return true;
          }
    
          s._html5_canplay = true;
          sm2._wD(s.id + ': canplay');
          s._onbufferchange(0);
  • ¶

    position according to instance options

          position1K = (s._iO.position !== _undefined && !isNaN(s._iO.position)?s._iO.position/msecScale:null);
  • ¶

    set the position if position was set before the sound loaded

          if (s.position && this.currentTime !== position1K) {
            sm2._wD(s.id + ': canplay: Setting position to ' + position1K);
            try {
              this.currentTime = position1K;
            } catch(ee) {
              sm2._wD(s.id + ': canplay: Setting position of ' + position1K + ' failed: ' + ee.message, 2);
            }
          }
  • ¶

    hack for HTML5 from/to case

          if (s._iO._oncanplay) {
            s._iO._oncanplay();
          }
    
        }),
    
        canplaythrough: html5_event(function() {
    
          var s = this._s;
    
          if (!s.loaded) {
            s._onbufferchange(0);
            s._whileloading(s.bytesLoaded, s.bytesTotal, s._get_html5_duration());
            s._onload(true);
          }
    
        }),
  • ¶

    TODO: Reserved for potential use

        /*
        emptied: html5_event(function() {
    
          sm2._wD(this._s.id + ': emptied');
    
        }),
        */
    
        ended: html5_event(function() {
    
          var s = this._s;
    
          sm2._wD(s.id + ': ended');
    
          s._onfinish();
    
        }),
    
        error: html5_event(function() {
    
          sm2._wD(this._s.id + ': HTML5 error, code ' + this.error.code);
          /**
           * HTML5 error codes, per W3C
           * Error 1: Client aborted download at user's request.
           * Error 2: Network error after load started.
           * Error 3: Decoding issue.
           * Error 4: Media (audio file) not supported.
           * Reference: http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#error-codes
           */
  • ¶

    call load with error state?

          this._s._onload(false);
    
        }),
    
        loadeddata: html5_event(function() {
    
          var s = this._s;
    
          sm2._wD(s.id + ': loadeddata');
  • ¶

    safari seems to nicely report progress events, eventually totalling 100%

          if (!s._loaded && !isSafari) {
            s.duration = s._get_html5_duration();
          }
    
        }),
    
        loadedmetadata: html5_event(function() {
    
          sm2._wD(this._s.id + ': loadedmetadata');
    
        }),
    
        loadstart: html5_event(function() {
    
          sm2._wD(this._s.id + ': loadstart');
  • ¶

    assume buffering at first

          this._s._onbufferchange(1);
    
        }),
    
        play: html5_event(function() {
  • ¶

    sm2._wD(this._s.id + ': play()'); once play starts, no buffering

          this._s._onbufferchange(0);
    
        }),
    
        playing: html5_event(function() {
    
          sm2._wD(this._s.id + ': playing');
  • ¶

    once play starts, no buffering

          this._s._onbufferchange(0);
    
        }),
    
        progress: html5_event(function(e) {
  • ¶

    note: can fire repeatedly after "loaded" event, due to use of HTTP range/partials

          var s = this._s,
              i, j, progStr, buffered = 0,
              isProgress = (e.type === 'progress'),
              ranges = e.target.buffered,
  • ¶

    firefox 3.6 implements e.loaded/total (bytes)

              loaded = (e.loaded||0),
              total = (e.total||1);
  • ¶

    reset the "buffered" (loaded byte ranges) array

          s.buffered = [];
    
          if (ranges && ranges.length) {
  • ¶

    if loaded is 0, try TimeRanges implementation as % of load https://developer.mozilla.org/en/DOM/TimeRanges

  • ¶

    re-build "buffered" array HTML5 returns seconds. SM2 API uses msec for setPosition() etc., whether Flash or HTML5.

            for (i=0, j=ranges.length; i<j; i++) {
              s.buffered.push({
                'start': ranges.start(i) * msecScale,
                'end': ranges.end(i) * msecScale
              });
            }
  • ¶

    use the last value locally

            buffered = (ranges.end(0) - ranges.start(0)) * msecScale;
  • ¶

    linear case, buffer sum; does not account for seeking and HTTP partials / byte ranges

            loaded = Math.min(1, buffered/(e.target.duration*msecScale));
  • ¶
            if (isProgress && ranges.length > 1) {
              progStr = [];
              j = ranges.length;
              for (i=0; i<j; i++) {
                progStr.push(e.target.buffered.start(i)*msecScale +'-'+ e.target.buffered.end(i)*msecScale);
              }
              sm2._wD(this._s.id + ': progress, timeRanges: ' + progStr.join(', '));
            }
    
            if (isProgress && !isNaN(loaded)) {
              sm2._wD(this._s.id + ': progress, ' + Math.floor(loaded*100) + '% loaded');
            }
  • ¶

          }
    
          if (!isNaN(loaded)) {
  • ¶

    if progress, likely not buffering

            s._onbufferchange(0);
  • ¶

    TODO: prevent calls with duplicate values.

            s._whileloading(loaded, total, s._get_html5_duration());
            if (loaded && total && loaded === total) {
  • ¶

    in case "onload" doesn't fire (eg. gecko 1.9.2)

              html5_events.canplaythrough.call(this, e);
            }
    
          }
    
        }),
    
        ratechange: html5_event(function() {
    
          sm2._wD(this._s.id + ': ratechange');
    
        }),
    
        suspend: html5_event(function(e) {
  • ¶

    download paused/stopped, may have finished (eg. onload)

          var s = this._s;
    
          sm2._wD(this._s.id + ': suspend');
          html5_events.progress.call(this, e);
          s._onsuspend();
    
        }),
    
        stalled: html5_event(function() {
    
          sm2._wD(this._s.id + ': stalled');
    
        }),
    
        timeupdate: html5_event(function() {
    
          this._s._onTimer();
    
        }),
    
        waiting: html5_event(function() {
    
          var s = this._s;
  • ¶

    see also: seeking

          sm2._wD(this._s.id + ': waiting');
  • ¶

    playback faster than download rate, etc.

          s._onbufferchange(1);
    
        })
    
      };
    
      html5OK = function(iO) {
  • ¶

    playability test based on URL or MIME type

        var result;
    
        if (!iO || (!iO.type && !iO.url && !iO.serverURL)) {
  • ¶

    nothing to check

          result = false;
    
        } else if (iO.serverURL || (iO.type && preferFlashCheck(iO.type))) {
  • ¶

    RTMP, or preferring flash

          result = false;
    
        } else {
  • ¶

    Use type, if specified. Pass data: URIs to HTML5. If HTML5-only mode, no other options, so just give 'er

          result = ((iO.type ? html5CanPlay({type:iO.type}) : html5CanPlay({url:iO.url}) || sm2.html5Only || iO.url.match(/data\:/i)));
    
        }
    
        return result;
    
      };
    
      html5Unload = function(oAudio) {
    
        /**
         * Internal method: Unload media, and cancel any current/pending network requests.
         * Firefox can load an empty URL, which allegedly destroys the decoder and stops the download.
         * https://developer.mozilla.org/En/Using_audio_and_video_in_Firefox#Stopping_the_download_of_media
         * However, Firefox has been seen loading a relative URL from '' and thus requesting the hosting page on unload.
         * Other UA behaviour is unclear, so everyone else gets an about:blank-style URL.
         */
    
        var url;
    
        if (oAudio) {
  • ¶

    Firefox and Chrome accept short WAVe data: URIs. Chome dislikes audio/wav, but accepts audio/wav for data: MIME. Desktop Safari complains / fails on data: URI, so it gets about:blank.

          url = (isSafari ? emptyURL : (sm2.html5.canPlayType('audio/wav') ? emptyWAV : emptyURL));
    
          oAudio.src = url;
  • ¶

    reset some state, too

          if (oAudio._called_unload !== undefined) {
            oAudio._called_load = false;
          }
    
        }
    
        if (useGlobalHTML5Audio) {
  • ¶

    ensure URL state is trashed, also

          lastGlobalHTML5URL = null;
    
        }
    
        return url;
    
      };
    
      html5CanPlay = function(o) {
    
        /**
         * Try to find MIME, test and return truthiness
         * o = {
         *  url: '/path/to/an.mp3',
         *  type: 'audio/mp3'
         * }
         */
    
        if (!sm2.useHTML5Audio || !sm2.hasHTML5) {
          return false;
        }
    
        var url = (o.url || null),
            mime = (o.type || null),
            aF = sm2.audioFormats,
            result,
            offset,
            fileExt,
            item;
  • ¶

    account for known cases like audio/mp3

        if (mime && sm2.html5[mime] !== _undefined) {
          return (sm2.html5[mime] && !preferFlashCheck(mime));
        }
    
        if (!html5Ext) {
          html5Ext = [];
          for (item in aF) {
            if (aF.hasOwnProperty(item)) {
              html5Ext.push(item);
              if (aF[item].related) {
                html5Ext = html5Ext.concat(aF[item].related);
              }
            }
          }
          html5Ext = new RegExp('\\.('+html5Ext.join('|')+')(\\?.*)?$','i');
        }
  • ¶

    TODO: Strip URL queries, etc.

        fileExt = (url ? url.toLowerCase().match(html5Ext) : null);
    
        if (!fileExt || !fileExt.length) {
          if (!mime) {
            result = false;
          } else {
  • ¶

    audio/mp3 -> mp3, result should be known

            offset = mime.indexOf(';');
  • ¶

    strip "audio/X; codecs..."

            fileExt = (offset !== -1?mime.substr(0,offset):mime).substr(6);
          }
        } else {
  • ¶

    match the raw extension name - "mp3", for example

          fileExt = fileExt[1];
        }
    
        if (fileExt && sm2.html5[fileExt] !== _undefined) {
  • ¶

    result known

          result = (sm2.html5[fileExt] && !preferFlashCheck(fileExt));
        } else {
          mime = 'audio/'+fileExt;
          result = sm2.html5.canPlayType({type:mime});
          sm2.html5[fileExt] = result;
  • ¶

    sm2._wD('canPlayType, found result: ' + result);

          result = (result && sm2.html5[mime] && !preferFlashCheck(mime));
        }
    
        return result;
    
      };
    
      testHTML5 = function() {
    
        /**
         * Internal: Iterates over audioFormats, determining support eg. audio/mp3, audio/mpeg and so on
         * assigns results to html5[] and flash[].
         */
    
        if (!sm2.useHTML5Audio || !sm2.hasHTML5) {
  • ¶

    without HTML5, we need Flash.

          sm2.html5.usingFlash = true;
          needsFlash = true;
          return false;
        }
  • ¶

    double-whammy: Opera 9.64 throws WRONG_ARGUMENTS_ERR if no parameter passed to Audio(), and Webkit + iOS happily tries to load "null" as a URL. :/

        var a = (Audio !== _undefined ? (isOpera && opera.version() < 10 ? new Audio(null) : new Audio()) : null),
            item, lookup, support = {}, aF, i;
    
        function cp(m) {
    
          var canPlay, j,
              result = false,
              isOK = false;
    
          if (!a || typeof a.canPlayType !== 'function') {
            return result;
          }
    
          if (m instanceof Array) {
  • ¶

    iterate through all mime types, return any successes

            for (i=0, j=m.length; i<j; i++) {
              if (sm2.html5[m[i]] || a.canPlayType(m[i]).match(sm2.html5Test)) {
                isOK = true;
                sm2.html5[m[i]] = true;
  • ¶

    note flash support, too

                sm2.flash[m[i]] = !!(m[i].match(flashMIME));
              }
            }
            result = isOK;
          } else {
            canPlay = (a && typeof a.canPlayType === 'function' ? a.canPlayType(m) : false);
            result = !!(canPlay && (canPlay.match(sm2.html5Test)));
          }
    
          return result;
    
        }
  • ¶

    test all registered formats + codecs

        aF = sm2.audioFormats;
    
        for (item in aF) {
    
          if (aF.hasOwnProperty(item)) {
    
            lookup = 'audio/' + item;
    
            support[item] = cp(aF[item].type);
  • ¶

    write back generic type too, eg. audio/mp3

            support[lookup] = support[item];
  • ¶

    assign flash

            if (item.match(flashMIME)) {
    
              sm2.flash[item] = true;
              sm2.flash[lookup] = true;
    
            } else {
    
              sm2.flash[item] = false;
              sm2.flash[lookup] = false;
    
            }
  • ¶

    assign result to related formats, too

            if (aF[item] && aF[item].related) {
    
              for (i=aF[item].related.length-1; i >= 0; i--) {
  • ¶

    eg. audio/m4a

                support['audio/'+aF[item].related[i]] = support[item];
                sm2.html5[aF[item].related[i]] = support[item];
                sm2.flash[aF[item].related[i]] = support[item];
    
              }
    
            }
    
          }
    
        }
    
        support.canPlayType = (a?cp:null);
        sm2.html5 = mixin(sm2.html5, support);
    
        sm2.html5.usingFlash = featureCheck();
        needsFlash = sm2.html5.usingFlash;
    
        return true;
    
      };
    
      strings = {
  • ¶
        notReady: 'Unavailable - wait until onready() has fired.',
        notOK: 'Audio support is not available.',
        domError: sm + 'exception caught while appending SWF to DOM.',
        spcWmode: 'Removing wmode, preventing known SWF loading issue(s)',
        swf404: smc + 'Verify that %s is a valid path.',
        tryDebug: 'Try ' + sm + '.debugFlash = true for more security details (output goes to SWF.)',
        checkSWF: 'See SWF output for more debug info.',
        localFail: smc + 'Non-HTTP page (' + doc.location.protocol + ' URL?) Review Flash player security settings for this special case:\nhttp://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager04.html\nMay need to add/allow path, eg. c:/sm2/ or /users/me/sm2/',
        waitFocus: smc + 'Special case: Waiting for SWF to load with window focus...',
        waitForever: smc + 'Waiting indefinitely for Flash (will recover if unblocked)...',
        waitSWF: smc + 'Waiting for 100% SWF load...',
        needFunction: smc + 'Function object expected for %s',
        badID: 'Sound ID "%s" should be a string, starting with a non-numeric character',
        currentObj: smc + '_debug(): Current sound objects',
        waitOnload: smc + 'Waiting for window.onload()',
        docLoaded: smc + 'Document already loaded',
        onload: smc + 'initComplete(): calling soundManager.onload()',
        onloadOK: sm + '.onload() complete',
        didInit: smc + 'init(): Already called?',
        secNote: 'Flash security note: Network/internet URLs will not load due to security restrictions. Access can be configured via Flash Player Global Security Settings Page: http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager04.html',
        badRemove: smc + 'Failed to remove Flash node.',
        shutdown: sm + '.disable(): Shutting down',
        queue: smc + 'Queueing %s handler',
        smError: 'SMSound.load(): Exception: JS-Flash communication failed, or JS error.',
        fbTimeout: 'No flash response, applying .'+swfCSS.swfTimedout+' CSS...',
        fbLoaded: 'Flash loaded',
        fbHandler: smc + 'flashBlockHandler()',
        manURL: 'SMSound.load(): Using manually-assigned URL',
        onURL: sm + '.load(): current URL already assigned.',
        badFV: sm + '.flashVersion must be 8 or 9. "%s" is invalid. Reverting to %s.',
        as2loop: 'Note: Setting stream:false so looping can work (flash 8 limitation)',
        noNSLoop: 'Note: Looping not implemented for MovieStar formats',
        needfl9: 'Note: Switching to flash 9, required for MP4 formats.',
        mfTimeout: 'Setting flashLoadTimeout = 0 (infinite) for off-screen, mobile flash case',
        needFlash: smc + 'Fatal error: Flash is needed to play some required formats, but is not available.',
        gotFocus: smc + 'Got window focus.',
        policy: 'Enabling usePolicyFile for data access',
        setup: sm + '.setup(): allowed parameters: %s',
        setupError: sm + '.setup(): "%s" cannot be assigned with this method.',
        setupUndef: sm + '.setup(): Could not find option "%s"',
        setupLate: sm + '.setup(): url, flashVersion and html5Test property changes will not take effect until reboot().',
        noURL: smc + 'Flash URL required. Call soundManager.setup({url:...}) to get started.',
        sm2Loaded: 'SoundManager 2: Ready.',
        reset: sm + '.reset(): Removing event callbacks',
        mobileUA: 'Mobile UA detected, preferring HTML5 by default.',
        globalHTML5: 'Using singleton HTML5 Audio() pattern for this device.'
  • ¶

      };
    
      str = function() {
  • ¶

    internal string replace helper. arguments: o [,items to replace]

        var args,
            i, j, o,
            sstr;
  • ¶

    real array, please

        args = slice.call(arguments);
  • ¶

    first argument

        o = args.shift();
    
        sstr = (strings && strings[o] ? strings[o] : '');
    
        if (sstr && args && args.length) {
          for (i = 0, j = args.length; i < j; i++) {
            sstr = sstr.replace('%s', args[i]);
          }
        }
    
        return sstr;
  • ¶

      };
    
      loopFix = function(sOpt) {
  • ¶

    flash 8 requires stream = false for looping to work

        if (fV === 8 && sOpt.loops > 1 && sOpt.stream) {
          _wDS('as2loop');
          sOpt.stream = false;
        }
    
        return sOpt;
    
      };
    
      policyFix = function(sOpt, sPre) {
    
        if (sOpt && !sOpt.usePolicyFile && (sOpt.onid3 || sOpt.usePeakData || sOpt.useWaveformData || sOpt.useEQData)) {
          sm2._wD((sPre || '') + str('policy'));
          sOpt.usePolicyFile = true;
        }
    
        return sOpt;
    
      };
    
      complain = function(sMsg) {
  • ¶
        if (hasConsole && console.warn !== _undefined) {
          console.warn(sMsg);
        } else {
          sm2._wD(sMsg);
        }
  • ¶

      };
    
      doNothing = function() {
    
        return false;
    
      };
    
      disableObject = function(o) {
    
        var oProp;
    
        for (oProp in o) {
          if (o.hasOwnProperty(oProp) && typeof o[oProp] === 'function') {
            o[oProp] = doNothing;
          }
        }
    
        oProp = null;
    
      };
    
      failSafely = function(bNoDisable) {
  • ¶

    general failure exception handler

        if (bNoDisable === _undefined) {
          bNoDisable = false;
        }
    
        if (disabled || bNoDisable) {
          sm2.disable(bNoDisable);
        }
    
      };
    
      normalizeMovieURL = function(smURL) {
    
        var urlParams = null, url;
    
        if (smURL) {
          if (smURL.match(/\.swf(\?.*)?$/i)) {
            urlParams = smURL.substr(smURL.toLowerCase().lastIndexOf('.swf?') + 4);
            if (urlParams) {
  • ¶

    assume user knows what they're doing

              return smURL;
            }
          } else if (smURL.lastIndexOf('/') !== smURL.length - 1) {
  • ¶

    append trailing slash, if needed

            smURL += '/';
          }
        }
    
        url = (smURL && smURL.lastIndexOf('/') !== - 1 ? smURL.substr(0, smURL.lastIndexOf('/') + 1) : './') + sm2.movieURL;
    
        if (sm2.noSWFCache) {
          url += ('?ts=' + new Date().getTime());
        }
    
        return url;
    
      };
    
      setVersionInfo = function() {
  • ¶

    short-hand for internal use

        fV = parseInt(sm2.flashVersion, 10);
    
        if (fV !== 8 && fV !== 9) {
          sm2._wD(str('badFV', fV, defaultFlashVersion));
          sm2.flashVersion = fV = defaultFlashVersion;
        }
  • ¶

    debug flash movie, if applicable

        var isDebug = (sm2.debugMode || sm2.debugFlash?'_debug.swf':'.swf');
    
        if (sm2.useHTML5Audio && !sm2.html5Only && sm2.audioFormats.mp4.required && fV < 9) {
          sm2._wD(str('needfl9'));
          sm2.flashVersion = fV = 9;
        }
    
        sm2.version = sm2.versionNumber + (sm2.html5Only?' (HTML5-only mode)':(fV === 9?' (AS3/Flash 9)':' (AS2/Flash 8)'));
  • ¶

    set up default options

        if (fV > 8) {
  • ¶

    +flash 9 base options

          sm2.defaultOptions = mixin(sm2.defaultOptions, sm2.flash9Options);
          sm2.features.buffering = true;
  • ¶

    +moviestar support

          sm2.defaultOptions = mixin(sm2.defaultOptions, sm2.movieStarOptions);
          sm2.filePatterns.flash9 = new RegExp('\\.(mp3|' + netStreamTypes.join('|') + ')(\\?.*)?$', 'i');
          sm2.features.movieStar = true;
        } else {
          sm2.features.movieStar = false;
        }
  • ¶

    regExp for flash canPlay(), etc.

        sm2.filePattern = sm2.filePatterns[(fV !== 8?'flash9':'flash8')];
  • ¶

    if applicable, use _debug versions of SWFs

        sm2.movieURL = (fV === 8?'soundmanager2.swf':'soundmanager2_flash9.swf').replace('.swf', isDebug);
    
        sm2.features.peakData = sm2.features.waveformData = sm2.features.eqData = (fV > 8);
    
      };
    
      setPolling = function(bPolling, bHighPerformance) {
    
        if (!flash) {
          return false;
        }
    
        flash._setPolling(bPolling, bHighPerformance);
    
      };
    
      initDebug = function() {
  • ¶

    starts debug mode, creating output

    for UAs without console object

  • ¶

    allow force of debug mode via URL

        if (sm2.debugURLParam.test(wl)) {
          sm2.debugMode = true;
        }
    
        if (id(sm2.debugID)) {
          return false;
        }
    
        var oD, oDebug, oTarget, oToggle, tmp;
    
        if (sm2.debugMode && !id(sm2.debugID) && (!hasConsole || !sm2.useConsole || !sm2.consoleOnly)) {
    
          oD = doc.createElement('div');
          oD.id = sm2.debugID + '-toggle';
    
          oToggle = {
            'position': 'fixed',
            'bottom': '0px',
            'right': '0px',
            'width': '1.2em',
            'height': '1.2em',
            'lineHeight': '1.2em',
            'margin': '2px',
            'textAlign': 'center',
            'border': '1px solid #999',
            'cursor': 'pointer',
            'background': '#fff',
            'color': '#333',
            'zIndex': 10001
          };
    
          oD.appendChild(doc.createTextNode('-'));
          oD.onclick = toggleDebug;
          oD.title = 'Toggle SM2 debug console';
    
          if (ua.match(/msie 6/i)) {
            oD.style.position = 'absolute';
            oD.style.cursor = 'hand';
          }
    
          for (tmp in oToggle) {
            if (oToggle.hasOwnProperty(tmp)) {
              oD.style[tmp] = oToggle[tmp];
            }
          }
    
          oDebug = doc.createElement('div');
          oDebug.id = sm2.debugID;
          oDebug.style.display = (sm2.debugMode?'block':'none');
    
          if (sm2.debugMode && !id(oD.id)) {
            try {
              oTarget = getDocument();
              oTarget.appendChild(oD);
            } catch(e2) {
              throw new Error(str('domError')+' \n'+e2.toString());
            }
            oTarget.appendChild(oDebug);
          }
    
        }
    
        oTarget = null;
  • ¶

      };
    
      idCheck = this.getSoundById;
  • ¶
      _wDS = function(o, errorLevel) {
    
        return (!o ? '' : sm2._wD(str(o), errorLevel));
    
      };
    
      toggleDebug = function() {
    
        var o = id(sm2.debugID),
        oT = id(sm2.debugID + '-toggle');
    
        if (!o) {
          return false;
        }
    
        if (debugOpen) {
  • ¶

    minimize

          oT.innerHTML = '+';
          o.style.display = 'none';
        } else {
          oT.innerHTML = '-';
          o.style.display = 'block';
        }
    
        debugOpen = !debugOpen;
    
      };
    
      debugTS = function(sEventType, bSuccess, sMessage) {
  • ¶

    troubleshooter debug hooks

        if (window.sm2Debugger !== _undefined) {
          try {
            sm2Debugger.handleEvent(sEventType, bSuccess, sMessage);
          } catch(e) {
  • ¶

    oh well

            return false;
          }
        }
    
        return true;
    
      };
  • ¶

      getSWFCSS = function() {
    
        var css = [];
    
        if (sm2.debugMode) {
          css.push(swfCSS.sm2Debug);
        }
    
        if (sm2.debugFlash) {
          css.push(swfCSS.flashDebug);
        }
    
        if (sm2.useHighPerformance) {
          css.push(swfCSS.highPerf);
        }
    
        return css.join(' ');
    
      };
    
      flashBlockHandler = function() {
  • ¶

    possible flash block situation.

        var name = str('fbHandler'),
            p = sm2.getMoviePercent(),
            css = swfCSS,
            error = {type:'FLASHBLOCK'};
    
        if (sm2.html5Only) {
  • ¶

    no flash, or unused

          return false;
        }
    
        if (!sm2.ok()) {
    
          if (needsFlash) {
  • ¶

    make the movie more visible, so user can fix

            sm2.oMC.className = getSWFCSS() + ' ' + css.swfDefault + ' ' + (p === null?css.swfTimedout:css.swfError);
            sm2._wD(name + ': ' + str('fbTimeout') + (p ? ' (' + str('fbLoaded') + ')' : ''));
          }
    
          sm2.didFlashBlock = true;
  • ¶

    fire onready(), complain lightly

          processOnEvents({type:'ontimeout', ignoreInit:true, error:error});
          catchError(error);
    
        } else {
  • ¶

    SM2 loaded OK (or recovered)

  • ¶
          if (sm2.didFlashBlock) {
            sm2._wD(name + ': Unblocked');
          }
  • ¶

          if (sm2.oMC) {
            sm2.oMC.className = [getSWFCSS(), css.swfDefault, css.swfLoaded + (sm2.didFlashBlock?' '+css.swfUnblocked:'')].join(' ');
          }
    
        }
    
      };
    
      addOnEvent = function(sType, oMethod, oScope) {
    
        if (on_queue[sType] === _undefined) {
          on_queue[sType] = [];
        }
    
        on_queue[sType].push({
          'method': oMethod,
          'scope': (oScope || null),
          'fired': false
        });
    
      };
    
      processOnEvents = function(oOptions) {
  • ¶

    if unspecified, assume OK/error

        if (!oOptions) {
          oOptions = {
            type: (sm2.ok() ? 'onready' : 'ontimeout')
          };
        }
    
        if (!didInit && oOptions && !oOptions.ignoreInit) {
  • ¶

    not ready yet.

          return false;
        }
    
        if (oOptions.type === 'ontimeout' && (sm2.ok() || (disabled && !oOptions.ignoreInit))) {
  • ¶

    invalid case

          return false;
        }
    
        var status = {
              success: (oOptions && oOptions.ignoreInit?sm2.ok():!disabled)
            },
  • ¶

    queue specified by type, or none

            srcQueue = (oOptions && oOptions.type?on_queue[oOptions.type]||[]:[]),
    
            queue = [], i, j,
            args = [status],
            canRetry = (needsFlash && !sm2.ok());
    
        if (oOptions.error) {
          args[0].error = oOptions.error;
        }
    
        for (i = 0, j = srcQueue.length; i < j; i++) {
          if (srcQueue[i].fired !== true) {
            queue.push(srcQueue[i]);
          }
        }
    
        if (queue.length) {
  • ¶

    sm2._wD(sm + ': Firing ' + queue.length + ' ' + oOptions.type + '() item' + (queue.length === 1 ? '' : 's'));

          for (i = 0, j = queue.length; i < j; i++) {
            if (queue[i].scope) {
              queue[i].method.apply(queue[i].scope, args);
            } else {
              queue[i].method.apply(this, args);
            }
            if (!canRetry) {
  • ¶

    useFlashBlock and SWF timeout case doesn't count here.

              queue[i].fired = true;
            }
          }
        }
    
        return true;
    
      };
    
      initUserOnload = function() {
    
        window.setTimeout(function() {
    
          if (sm2.useFlashBlock) {
            flashBlockHandler();
          }
    
          processOnEvents();
  • ¶

    call user-defined "onload", scoped to window

          if (typeof sm2.onload === 'function') {
            _wDS('onload', 1);
            sm2.onload.apply(window);
            _wDS('onloadOK', 1);
          }
    
          if (sm2.waitForWindowLoad) {
            event.add(window, 'load', initUserOnload);
          }
    
        },1);
    
      };
    
      detectFlash = function() {
  • ¶

    hat tip: Flash Detect library (BSD, (C) 2007) by Carl "DocYes" S. Yestrau - http://featureblend.com/javascript-flash-detection-library.html / http://featureblend.com/license.txt

        if (hasFlash !== _undefined) {
  • ¶

    this work has already been done.

          return hasFlash;
        }
    
        var hasPlugin = false, n = navigator, nP = n.plugins, obj, type, types, AX = window.ActiveXObject;
    
        if (nP && nP.length) {
          type = 'application/x-shockwave-flash';
          types = n.mimeTypes;
          if (types && types[type] && types[type].enabledPlugin && types[type].enabledPlugin.description) {
            hasPlugin = true;
          }
        } else if (AX !== _undefined && !ua.match(/MSAppHost/i)) {
  • ¶

    Windows 8 Store Apps (MSAppHost) are weird (compatibility?) and won't complain here, but will barf if Flash/ActiveX object is appended to the DOM.

          try {
            obj = new AX('ShockwaveFlash.ShockwaveFlash');
          } catch(e) {
  • ¶

    oh well

            obj = null;
          }
          hasPlugin = (!!obj);
  • ¶

    cleanup, because it is ActiveX after all

          obj = null;
        }
    
        hasFlash = hasPlugin;
    
        return hasPlugin;
    
      };
    
      featureCheck = function() {
    
        var flashNeeded,
            item,
            formats = sm2.audioFormats,
  • ¶

    iPhone <= 3.1 has broken HTML5 audio(), but firmware 3.2 (original iPad) + iOS4 works.

            isSpecial = (is_iDevice && !!(ua.match(/os (1|2|3_0|3_1)/i)));
    
        if (isSpecial) {
  • ¶

    has Audio(), but is broken; let it load links directly.

          sm2.hasHTML5 = false;
  • ¶

    ignore flash case, however

          sm2.html5Only = true;
  • ¶

    hide the SWF, if present

          if (sm2.oMC) {
            sm2.oMC.style.display = 'none';
          }
    
        } else {
    
          if (sm2.useHTML5Audio) {
    
            if (!sm2.html5 || !sm2.html5.canPlayType) {
              sm2._wD('SoundManager: No HTML5 Audio() support detected.');
              sm2.hasHTML5 = false;
            }
  • ¶
            if (isBadSafari) {
              sm2._wD(smc + 'Note: Buggy HTML5 Audio in Safari on this OS X release, see https://bugs.webkit.org/show_bug.cgi?id=32159 - ' + (!hasFlash ?' would use flash fallback for MP3/MP4, but none detected.' : 'will use flash fallback for MP3/MP4, if available'), 1);
            }
  • ¶

          }
    
        }
    
        if (sm2.useHTML5Audio && sm2.hasHTML5) {
  • ¶

    sort out whether flash is optional, required or can be ignored.

  • ¶

    innocent until proven guilty.

          canIgnoreFlash = true;
    
          for (item in formats) {
            if (formats.hasOwnProperty(item)) {
              if (formats[item].required) {
                if (!sm2.html5.canPlayType(formats[item].type)) {
  • ¶

    100% HTML5 mode is not possible.

                  canIgnoreFlash = false;
                  flashNeeded = true;
                } else if (sm2.preferFlash && (sm2.flash[item] || sm2.flash[formats[item].type])) {
  • ¶

    flash may be required, or preferred for this format.

                  flashNeeded = true;
                }
              }
            }
          }
    
        }
  • ¶

    sanity check...

        if (sm2.ignoreFlash) {
          flashNeeded = false;
          canIgnoreFlash = true;
        }
    
        sm2.html5Only = (sm2.hasHTML5 && sm2.useHTML5Audio && !flashNeeded);
    
        return (!sm2.html5Only);
    
      };
    
      parseURL = function(url) {
    
        /**
         * Internal: Finds and returns the first playable URL (or failing that, the first URL.)
         * @param {string or array} url A single URL string, OR, an array of URL strings or {url:'/path/to/resource', type:'audio/mp3'} objects.
         */
    
        var i, j, urlResult = 0, result;
    
        if (url instanceof Array) {
  • ¶

    find the first good one

          for (i=0, j=url.length; i<j; i++) {
    
            if (url[i] instanceof Object) {
  • ¶

    MIME check

              if (sm2.canPlayMIME(url[i].type)) {
                urlResult = i;
                break;
              }
    
            } else if (sm2.canPlayURL(url[i])) {
  • ¶

    URL string check

              urlResult = i;
              break;
            }
    
          }
  • ¶

    normalize to string

          if (url[urlResult].url) {
            url[urlResult] = url[urlResult].url;
          }
    
          result = url[urlResult];
    
        } else {
  • ¶

    single URL case

          result = url;
    
        }
    
        return result;
    
      };
    
    
      startTimer = function(oSound) {
    
        /**
         * attach a timer to this sound, and start an interval if needed
         */
    
        if (!oSound._hasTimer) {
    
          oSound._hasTimer = true;
    
          if (!mobileHTML5 && sm2.html5PollingInterval) {
    
            if (h5IntervalTimer === null && h5TimerCount === 0) {
    
              h5IntervalTimer = setInterval(timerExecute, sm2.html5PollingInterval);
    
            }
    
            h5TimerCount++;
    
          }
    
        }
    
      };
    
      stopTimer = function(oSound) {
    
        /**
         * detach a timer
         */
    
        if (oSound._hasTimer) {
    
          oSound._hasTimer = false;
    
          if (!mobileHTML5 && sm2.html5PollingInterval) {
  • ¶

    interval will stop itself at next execution.

            h5TimerCount--;
    
          }
    
        }
    
      };
    
      timerExecute = function() {
    
        /**
         * manual polling for HTML5 progress events, ie., whileplaying() (can achieve greater precision than conservative default HTML5 interval)
         */
    
        var i;
    
        if (h5IntervalTimer !== null && !h5TimerCount) {
  • ¶

    no active timers, stop polling interval.

          clearInterval(h5IntervalTimer);
    
          h5IntervalTimer = null;
    
          return false;
    
        }
  • ¶

    check all HTML5 sounds with timers

        for (i = sm2.soundIDs.length-1; i >= 0; i--) {
    
          if (sm2.sounds[sm2.soundIDs[i]].isHTML5 && sm2.sounds[sm2.soundIDs[i]]._hasTimer) {
    
            sm2.sounds[sm2.soundIDs[i]]._onTimer();
    
          }
    
        }
    
      };
    
      catchError = function(options) {
    
        options = (options !== _undefined ? options : {});
    
        if (typeof sm2.onerror === 'function') {
          sm2.onerror.apply(window, [{type:(options.type !== _undefined ? options.type : null)}]);
        }
    
        if (options.fatal !== _undefined && options.fatal) {
          sm2.disable();
        }
    
      };
    
      badSafariFix = function() {
  • ¶

    special case: "bad" Safari (OS X 10.3 - 10.7) must fall back to flash for MP3/MP4

        if (!isBadSafari || !detectFlash()) {
  • ¶

    doesn't apply

          return false;
        }
    
        var aF = sm2.audioFormats, i, item;
    
        for (item in aF) {
          if (aF.hasOwnProperty(item)) {
            if (item === 'mp3' || item === 'mp4') {
              sm2._wD(sm + ': Using flash fallback for ' + item + ' format');
              sm2.html5[item] = false;
  • ¶

    assign result to related formats, too

              if (aF[item] && aF[item].related) {
                for (i = aF[item].related.length-1; i >= 0; i--) {
                  sm2.html5[aF[item].related[i]] = false;
                }
              }
            }
          }
        }
    
      };
    
      /**
       * Pseudo-private flash/ExternalInterface methods
       * ----------------------------------------------
       */
    
      this._setSandboxType = function(sandboxType) {
  • ¶
        var sb = sm2.sandbox;
    
        sb.type = sandboxType;
        sb.description = sb.types[(sb.types[sandboxType] !== _undefined?sandboxType:'unknown')];
    
        if (sb.type === 'localWithFile') {
    
          sb.noRemote = true;
          sb.noLocal = false;
          _wDS('secNote', 2);
    
        } else if (sb.type === 'localWithNetwork') {
    
          sb.noRemote = false;
          sb.noLocal = true;
    
        } else if (sb.type === 'localTrusted') {
    
          sb.noRemote = false;
          sb.noLocal = false;
    
        }
  • ¶

      };
    
      this._externalInterfaceOK = function(swfVersion) {
  • ¶

    flash callback confirming flash loaded, EI working etc. swfVersion: SWF build string

        if (sm2.swfLoaded) {
          return false;
        }
    
        var e;
    
        debugTS('swf', true);
        debugTS('flashtojs', true);
        sm2.swfLoaded = true;
        tryInitOnFocus = false;
    
        if (isBadSafari) {
          badSafariFix();
        }
  • ¶

    complain if JS + SWF build/version strings don't match, excluding +DEV builds

        if (!swfVersion || swfVersion.replace(/\+dev/i,'') !== sm2.versionNumber.replace(/\+dev/i, '')) {
    
          e = sm + ': Fatal: JavaScript file build "' + sm2.versionNumber + '" does not match Flash SWF build "' + swfVersion + '" at ' + sm2.url + '. Ensure both are up-to-date.';
  • ¶

    escape flash -> JS stack so this error fires in window.

          setTimeout(function versionMismatch() {
            throw new Error(e);
          }, 0);
  • ¶

    exit, init will fail with timeout

          return false;
    
        }
  • ¶

  • ¶

    IE needs a larger timeout

        setTimeout(init, isIE ? 100 : 1);
    
      };
    
      /**
       * Private initialization helpers
       * ------------------------------
       */
    
      createMovie = function(smID, smURL) {
    
        if (didAppend && appendSuccess) {
  • ¶

    ignore if already succeeded

          return false;
        }
    
        function initMsg() {
  • ¶
          var options = [],
              title,
              msg = [],
              delimiter = ' + ';
    
          title = 'SoundManager ' + sm2.version + (!sm2.html5Only && sm2.useHTML5Audio ? (sm2.hasHTML5 ? ' + HTML5 audio' : ', no HTML5 audio support') : '');
    
          if (!sm2.html5Only) {
    
            if (sm2.preferFlash) {
              options.push('preferFlash');
            }
    
            if (sm2.useHighPerformance) {
              options.push('useHighPerformance');
            }
    
            if (sm2.flashPollingInterval) {
              options.push('flashPollingInterval (' + sm2.flashPollingInterval + 'ms)');
            }
    
            if (sm2.html5PollingInterval) {
              options.push('html5PollingInterval (' + sm2.html5PollingInterval + 'ms)');
            }
    
            if (sm2.wmode) {
              options.push('wmode (' + sm2.wmode + ')');
            }
    
            if (sm2.debugFlash) {
              options.push('debugFlash');
            }
    
            if (sm2.useFlashBlock) {
              options.push('flashBlock');
            }
    
          } else {
    
            if (sm2.html5PollingInterval) {
              options.push('html5PollingInterval (' + sm2.html5PollingInterval + 'ms)');
            }
    
          }
    
          if (options.length) {
            msg = msg.concat([options.join(delimiter)]);
          }
    
          sm2._wD(title + (msg.length ? delimiter + msg.join(', ') : ''), 1);
    
          showSupport();
  • ¶

        }
    
        if (sm2.html5Only) {
  • ¶

    100% HTML5 mode

          setVersionInfo();
    
          initMsg();
          sm2.oMC = id(sm2.movieID);
          init();
  • ¶

    prevent multiple init attempts

          didAppend = true;
    
          appendSuccess = true;
    
          return false;
    
        }
  • ¶

    flash path

        var remoteURL = (smURL || sm2.url),
        localURL = (sm2.altURL || remoteURL),
        swfTitle = 'JS/Flash audio component (SoundManager 2)',
        oTarget = getDocument(),
        extraClass = getSWFCSS(),
        isRTL = null,
        html = doc.getElementsByTagName('html')[0],
        oEmbed, oMovie, tmp, movieHTML, oEl, s, x, sClass;
    
        isRTL = (html && html.dir && html.dir.match(/rtl/i));
        smID = (smID === _undefined?sm2.id:smID);
    
        function param(name, value) {
          return '<param name="'+name+'" value="'+value+'" />';
        }
  • ¶

    safety check for legacy (change to Flash 9 URL)

        setVersionInfo();
        sm2.url = normalizeMovieURL(overHTTP?remoteURL:localURL);
        smURL = sm2.url;
    
        sm2.wmode = (!sm2.wmode && sm2.useHighPerformance ? 'transparent' : sm2.wmode);
    
        if (sm2.wmode !== null && (ua.match(/msie 8/i) || (!isIE && !sm2.useHighPerformance)) && navigator.platform.match(/win32|win64/i)) {
          /**
           * extra-special case: movie doesn't load until scrolled into view when using wmode = anything but 'window' here
           * does not apply when using high performance (position:fixed means on-screen), OR infinite flash load timeout
           * wmode breaks IE 8 on Vista + Win7 too in some cases, as of January 2011 (?)
           */
           messages.push(strings.spcWmode);
          sm2.wmode = null;
        }
    
        oEmbed = {
          'name': smID,
          'id': smID,
          'src': smURL,
          'quality': 'high',
          'allowScriptAccess': sm2.allowScriptAccess,
          'bgcolor': sm2.bgColor,
          'pluginspage': http+'www.macromedia.com/go/getflashplayer',
          'title': swfTitle,
          'type': 'application/x-shockwave-flash',
          'wmode': sm2.wmode,
  • ¶

    http://help.adobe.com/en_US/as3/mobile/WS4bebcd66a74275c36cfb8137124318eebc6-7ffd.html

          'hasPriority': 'true'
        };
    
        if (sm2.debugFlash) {
          oEmbed.FlashVars = 'debug=1';
        }
    
        if (!sm2.wmode) {
  • ¶

    don't write empty attribute

          delete oEmbed.wmode;
        }
    
        if (isIE) {
  • ¶

    IE is "special".

          oMovie = doc.createElement('div');
          movieHTML = [
            '<object id="' + smID + '" data="' + smURL + '" type="' + oEmbed.type + '" title="' + oEmbed.title +'" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="' + http+'download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,40,0">',
            param('movie', smURL),
            param('AllowScriptAccess', sm2.allowScriptAccess),
            param('quality', oEmbed.quality),
            (sm2.wmode? param('wmode', sm2.wmode): ''),
            param('bgcolor', sm2.bgColor),
            param('hasPriority', 'true'),
            (sm2.debugFlash ? param('FlashVars', oEmbed.FlashVars) : ''),
            '</object>'
          ].join('');
    
        } else {
    
          oMovie = doc.createElement('embed');
          for (tmp in oEmbed) {
            if (oEmbed.hasOwnProperty(tmp)) {
              oMovie.setAttribute(tmp, oEmbed[tmp]);
            }
          }
    
        }
    
        initDebug();
        extraClass = getSWFCSS();
        oTarget = getDocument();
    
        if (oTarget) {
    
          sm2.oMC = (id(sm2.movieID) || doc.createElement('div'));
    
          if (!sm2.oMC.id) {
    
            sm2.oMC.id = sm2.movieID;
            sm2.oMC.className = swfCSS.swfDefault + ' ' + extraClass;
            s = null;
            oEl = null;
    
            if (!sm2.useFlashBlock) {
              if (sm2.useHighPerformance) {
  • ¶

    on-screen at all times

                s = {
                  'position': 'fixed',
                  'width': '8px',
                  'height': '8px',
  • ¶

    = 6px for flash to run fast, >= 8px to start up under Firefox/win32 in some cases. odd? yes.

                  'bottom': '0px',
                  'left': '0px',
                  'overflow': 'hidden'
                };
              } else {
  • ¶

    hide off-screen, lower priority

                s = {
                  'position': 'absolute',
                  'width': '6px',
                  'height': '6px',
                  'top': '-9999px',
                  'left': '-9999px'
                };
                if (isRTL) {
                  s.left = Math.abs(parseInt(s.left,10))+'px';
                }
              }
            }
    
            if (isWebkit) {
  • ¶

    soundcloud-reported render/crash fix, safari 5

              sm2.oMC.style.zIndex = 10000;
            }
    
            if (!sm2.debugFlash) {
              for (x in s) {
                if (s.hasOwnProperty(x)) {
                  sm2.oMC.style[x] = s[x];
                }
              }
            }
    
            try {
              if (!isIE) {
                sm2.oMC.appendChild(oMovie);
              }
              oTarget.appendChild(sm2.oMC);
              if (isIE) {
                oEl = sm2.oMC.appendChild(doc.createElement('div'));
                oEl.className = swfCSS.swfBox;
                oEl.innerHTML = movieHTML;
              }
              appendSuccess = true;
            } catch(e) {
              throw new Error(str('domError')+' \n'+e.toString());
            }
    
          } else {
  • ¶

    SM2 container is already in the document (eg. flashblock use case)

            sClass = sm2.oMC.className;
            sm2.oMC.className = (sClass?sClass+' ':swfCSS.swfDefault) + (extraClass?' '+extraClass:'');
            sm2.oMC.appendChild(oMovie);
            if (isIE) {
              oEl = sm2.oMC.appendChild(doc.createElement('div'));
              oEl.className = swfCSS.swfBox;
              oEl.innerHTML = movieHTML;
            }
            appendSuccess = true;
    
          }
    
        }
    
        didAppend = true;
        initMsg();
  • ¶

    sm2._wD(sm + ': Trying to load ' + smURL + (!overHTTP && sm2.altURL ? ' (alternate URL)' : ''), 1);

        return true;
    
      };
    
      initMovie = function() {
    
        if (sm2.html5Only) {
          createMovie();
          return false;
        }
  • ¶

    attempt to get, or create, movie (may already exist)

        if (flash) {
          return false;
        }
    
        if (!sm2.url) {
    
          /**
           * Something isn't right - we've reached init, but the soundManager url property has not been set.
           * User has not called setup({url: ...}), or has not set soundManager.url (legacy use case) directly before init time.
           * Notify and exit. If user calls setup() with a url: property, init will be restarted as in the deferred loading case.
           */
    
           _wDS('noURL');
           return false;
    
        }
  • ¶

    inline markup case

        flash = sm2.getMovie(sm2.id);
    
        if (!flash) {
          if (!oRemoved) {
  • ¶

    try to create

            createMovie(sm2.id, sm2.url);
          } else {
  • ¶

    try to re-append removed movie after reboot()

            if (!isIE) {
              sm2.oMC.appendChild(oRemoved);
            } else {
              sm2.oMC.innerHTML = oRemovedHTML;
            }
            oRemoved = null;
            didAppend = true;
          }
          flash = sm2.getMovie(sm2.id);
        }
    
        if (typeof sm2.oninitmovie === 'function') {
          setTimeout(sm2.oninitmovie, 1);
        }
  • ¶
        flushMessages();
  • ¶

        return true;
    
      };
    
      delayWaitForEI = function() {
    
        setTimeout(waitForEI, 1000);
    
      };
    
      rebootIntoHTML5 = function() {
  • ¶

    special case: try for a reboot with preferFlash: false, if 100% HTML5 mode is possible and useFlashBlock is not enabled.

        window.setTimeout(function() {
    
          complain(smc + 'useFlashBlock is false, 100% HTML5 mode is possible. Rebooting with preferFlash: false...');
    
          sm2.setup({
            preferFlash: false
          }).reboot();
  • ¶

    if for some reason you want to detect this case, use an ontimeout() callback and look for html5Only and didFlashBlock == true.

          sm2.didFlashBlock = true;
    
          sm2.beginDelayedInit();
    
        }, 1);
    
      };
    
      waitForEI = function() {
    
        var p,
            loadIncomplete = false;
    
        if (!sm2.url) {
  • ¶

    No SWF url to load (noURL case) - exit for now. Will be retried when url is set.

          return false;
        }
    
        if (waitingForEI) {
          return false;
        }
    
        waitingForEI = true;
        event.remove(window, 'load', delayWaitForEI);
    
        if (hasFlash && tryInitOnFocus && !isFocused) {
  • ¶

    Safari won't load flash in background tabs, only when focused.

          _wDS('waitFocus');
          return false;
        }
    
        if (!didInit) {
          p = sm2.getMoviePercent();
          if (p > 0 && p < 100) {
            loadIncomplete = true;
          }
        }
    
        setTimeout(function() {
    
          p = sm2.getMoviePercent();
    
          if (loadIncomplete) {
  • ¶

    special case: if movie partially loaded, retry until it's 100% before assuming failure.

            waitingForEI = false;
            sm2._wD(str('waitSWF'));
            window.setTimeout(delayWaitForEI, 1);
            return false;
          }
  • ¶
          if (!didInit) {
    
            sm2._wD(sm + ': No Flash response within expected time. Likely causes: ' + (p === 0 ? 'SWF load failed, ':'') + 'Flash blocked or JS-Flash security error.' + (sm2.debugFlash?' ' + str('checkSWF'):''), 2);
    
            if (!overHTTP && p) {
    
              _wDS('localFail', 2);
    
              if (!sm2.debugFlash) {
                _wDS('tryDebug', 2);
              }
    
            }
    
            if (p === 0) {
  • ¶

    if 0 (not null), probably a 404.

              sm2._wD(str('swf404', sm2.url), 1);
    
            }
    
            debugTS('flashtojs', false, ': Timed out' + overHTTP?' (Check flash security or flash blockers)':' (No plugin/missing SWF?)');
    
          }
  • ¶

  • ¶

    give up / time-out, depending

          if (!didInit && okToDisable) {
    
            if (p === null) {
  • ¶

    SWF failed to report load progress. Possibly blocked.

              if (sm2.useFlashBlock || sm2.flashLoadTimeout === 0) {
    
                if (sm2.useFlashBlock) {
    
                  flashBlockHandler();
    
                }
    
                _wDS('waitForever');
    
              } else {
  • ¶

    no custom flash block handling, but SWF has timed out. Will recover if user unblocks / allows SWF load.

                if (!sm2.useFlashBlock && canIgnoreFlash) {
    
                  rebootIntoHTML5();
    
                } else {
    
                  _wDS('waitForever');
  • ¶

    fire any regular registered ontimeout() listeners.

                  processOnEvents({type:'ontimeout', ignoreInit: true, error: {type: 'INIT_FLASHBLOCK'}});
    
                }
    
              }
    
            } else {
  • ¶

    SWF loaded? Shouldn't be a blocking issue, then.

              if (sm2.flashLoadTimeout === 0) {
    
                _wDS('waitForever');
    
              } else {
    
                if (!sm2.useFlashBlock && canIgnoreFlash) {
    
                  rebootIntoHTML5();
    
                } else {
    
                  failSafely(true);
    
                }
    
              }
    
            }
    
          }
    
        }, sm2.flashLoadTimeout);
    
      };
    
      handleFocus = function() {
    
        function cleanup() {
          event.remove(window, 'focus', handleFocus);
        }
    
        if (isFocused || !tryInitOnFocus) {
  • ¶

    already focused, or not special Safari background tab case

          cleanup();
          return true;
        }
    
        okToDisable = true;
        isFocused = true;
        _wDS('gotFocus');
  • ¶

    allow init to restart

        waitingForEI = false;
  • ¶

    kick off ExternalInterface timeout, now that the SWF has started

        delayWaitForEI();
    
        cleanup();
        return true;
    
      };
    
      flushMessages = function() {
  • ¶
  • ¶

    SM2 pre-init debug messages

        if (messages.length) {
          sm2._wD('SoundManager 2: ' + messages.join(' '), 1);
          messages = [];
        }
  • ¶

      };
    
      showSupport = function() {
  • ¶
        flushMessages();
    
        var item, tests = [];
    
        if (sm2.useHTML5Audio && sm2.hasHTML5) {
          for (item in sm2.audioFormats) {
            if (sm2.audioFormats.hasOwnProperty(item)) {
              tests.push(item + ' = ' + sm2.html5[item] + (!sm2.html5[item] && needsFlash && sm2.flash[item] ? ' (using flash)' : (sm2.preferFlash && sm2.flash[item] && needsFlash ? ' (preferring flash)': (!sm2.html5[item] ? ' (' + (sm2.audioFormats[item].required ? 'required, ':'') + 'and no flash support)' : ''))));
            }
          }
          sm2._wD('SoundManager 2 HTML5 support: ' + tests.join(', '), 1);
        }
  • ¶

      };
    
      initComplete = function(bNoDisable) {
    
        if (didInit) {
          return false;
        }
    
        if (sm2.html5Only) {
  • ¶

    all good.

          _wDS('sm2Loaded');
          didInit = true;
          initUserOnload();
          debugTS('onload', true);
          return true;
        }
    
        var wasTimeout = (sm2.useFlashBlock && sm2.flashLoadTimeout && !sm2.getMoviePercent()),
            result = true,
            error;
    
        if (!wasTimeout) {
          didInit = true;
        }
    
        error = {type: (!hasFlash && needsFlash ? 'NO_FLASH' : 'INIT_TIMEOUT')};
    
        sm2._wD('SoundManager 2 ' + (disabled ? 'failed to load' : 'loaded') + ' (' + (disabled ? 'Flash security/load error' : 'OK') + ')', disabled ? 2: 1);
    
        if (disabled || bNoDisable) {
          if (sm2.useFlashBlock && sm2.oMC) {
            sm2.oMC.className = getSWFCSS() + ' ' + (sm2.getMoviePercent() === null?swfCSS.swfTimedout:swfCSS.swfError);
          }
          processOnEvents({type:'ontimeout', error:error, ignoreInit: true});
          debugTS('onload', false);
          catchError(error);
          result = false;
        } else {
          debugTS('onload', true);
        }
    
        if (!disabled) {
          if (sm2.waitForWindowLoad && !windowLoaded) {
            _wDS('waitOnload');
            event.add(window, 'load', initUserOnload);
          } else {
  • ¶
            if (sm2.waitForWindowLoad && windowLoaded) {
              _wDS('docLoaded');
            }
  • ¶

            initUserOnload();
          }
        }
    
        return result;
    
      };
    
      /**
       * apply top-level setupOptions object as local properties, eg., this.setupOptions.flashVersion -> this.flashVersion (soundManager.flashVersion)
       * this maintains backward compatibility, and allows properties to be defined separately for use by soundManager.setup().
       */
    
      setProperties = function() {
    
        var i,
            o = sm2.setupOptions;
    
        for (i in o) {
    
          if (o.hasOwnProperty(i)) {
  • ¶

    assign local property if not already defined

            if (sm2[i] === _undefined) {
    
              sm2[i] = o[i];
    
            } else if (sm2[i] !== o[i]) {
  • ¶

    legacy support: write manually-assigned property (eg., soundManager.url) back to setupOptions to keep things in sync

              sm2.setupOptions[i] = sm2[i];
    
            }
    
          }
    
        }
    
      };
    
    
      init = function() {
  • ¶

    called after onload()

        if (didInit) {
          _wDS('didInit');
          return false;
        }
    
        function cleanup() {
          event.remove(window, 'load', sm2.beginDelayedInit);
        }
    
        if (sm2.html5Only) {
          if (!didInit) {
  • ¶

    we don't need no steenking flash!

            cleanup();
            sm2.enabled = true;
            initComplete();
          }
          return true;
        }
  • ¶

    flash path

        initMovie();
    
        try {
  • ¶

    attempt to talk to Flash

          flash._externalInterfaceTest(false);
  • ¶

    apply user-specified polling interval, OR, if "high performance" set, faster vs. default polling (determines frequency of whileloading/whileplaying callbacks, effectively driving UI framerates)

          setPolling(true, (sm2.flashPollingInterval || (sm2.useHighPerformance ? 10 : 50)));
    
          if (!sm2.debugMode) {
  • ¶

    stop the SWF from making debug output calls to JS

            flash._disableDebug();
          }
    
          sm2.enabled = true;
          debugTS('jstoflash', true);
    
          if (!sm2.html5Only) {
  • ¶

    prevent browser from showing cached page state (or rather, restoring "suspended" page state) via back button, because flash may be dead http://www.webkit.org/blog/516/webkit-page-cache-ii-the-unload-event/

            event.add(window, 'unload', doNothing);
          }
    
        } catch(e) {
    
          sm2._wD('js/flash exception: ' + e.toString());
          debugTS('jstoflash', false);
          catchError({type:'JS_TO_FLASH_EXCEPTION', fatal:true});
  • ¶

    don't disable, for reboot()

          failSafely(true);
          initComplete();
    
          return false;
    
        }
    
        initComplete();
  • ¶

    disconnect events

        cleanup();
    
        return true;
    
      };
    
      domContentLoaded = function() {
    
        if (didDCLoaded) {
          return false;
        }
    
        didDCLoaded = true;
  • ¶

    assign top-level soundManager properties eg. soundManager.url

        setProperties();
    
        initDebug();
    
        /**
         * Temporary feature: allow force of HTML5 via URL params: sm2-usehtml5audio=0 or 1
         * Ditto for sm2-preferFlash, too.
         */
  • ¶
        (function(){
    
          var a = 'sm2-usehtml5audio=',
              a2 = 'sm2-preferflash=',
              b = null,
              b2 = null,
              l = wl.toLowerCase();
    
          if (l.indexOf(a) !== -1) {
            b = (l.charAt(l.indexOf(a)+a.length) === '1');
            if (hasConsole) {
              console.log((b?'Enabling ':'Disabling ')+'useHTML5Audio via URL parameter');
            }
            sm2.setup({
              'useHTML5Audio': b
            });
          }
    
          if (l.indexOf(a2) !== -1) {
            b2 = (l.charAt(l.indexOf(a2)+a2.length) === '1');
            if (hasConsole) {
              console.log((b2?'Enabling ':'Disabling ')+'preferFlash via URL parameter');
            }
            sm2.setup({
              'preferFlash': b2
            });
          }
    
        }());
  • ¶

        if (!hasFlash && sm2.hasHTML5) {
          sm2._wD('SoundManager 2: No Flash detected' + (!sm2.useHTML5Audio ? ', enabling HTML5.' : '. Trying HTML5-only mode.'), 1);
          sm2.setup({
            'useHTML5Audio': true,
  • ¶

    make sure we aren't preferring flash, either TODO: preferFlash should not matter if flash is not installed. Currently, stuff breaks without the below tweak.

            'preferFlash': false
          });
        }
    
        testHTML5();
    
        if (!hasFlash && needsFlash) {
          messages.push(strings.needFlash);
  • ¶

    TODO: Fatal here vs. timeout approach, etc. hack: fail sooner.

          sm2.setup({
            'flashLoadTimeout': 1
          });
        }
    
        if (doc.removeEventListener) {
          doc.removeEventListener('DOMContentLoaded', domContentLoaded, false);
        }
    
        initMovie();
    
        return true;
    
      };
    
      domContentLoadedIE = function() {
    
        if (doc.readyState === 'complete') {
          domContentLoaded();
          doc.detachEvent('onreadystatechange', domContentLoadedIE);
        }
    
        return true;
    
      };
    
      winOnLoad = function() {
  • ¶

    catch edge case of initComplete() firing after window.load()

        windowLoaded = true;
        event.remove(window, 'load', winOnLoad);
    
      };
    
      /**
       * miscellaneous run-time, pre-init stuff
       */
    
      preInit = function() {
    
        if (mobileHTML5) {
  • ¶

    prefer HTML5 for mobile + tablet-like devices, probably more reliable vs. flash at this point.

  • ¶
          if (!sm2.setupOptions.useHTML5Audio || sm2.setupOptions.preferFlash) {
  • ¶

    notify that defaults are being changed.

            messages.push(strings.mobileUA);
          }
  • ¶

          sm2.setupOptions.useHTML5Audio = true;
          sm2.setupOptions.preferFlash = false;
    
          if (is_iDevice || (isAndroid && !ua.match(/android\s2\.3/i))) {
  • ¶

    iOS and Android devices tend to work better with a single audio instance, specifically for chained playback of sounds in sequence. common use case: exiting sound onfinish() -> createSound() -> play()

            messages.push(strings.globalHTML5);
  • ¶

            if (is_iDevice) {
              sm2.ignoreFlash = true;
            }
            useGlobalHTML5Audio = true;
          }
    
        }
    
      };
    
      preInit();
  • ¶

    sniff up-front

      detectFlash();
  • ¶

    focus and window load, init (primarily flash-driven)

      event.add(window, 'focus', handleFocus);
      event.add(window, 'load', delayWaitForEI);
      event.add(window, 'load', winOnLoad);
    
      if (doc.addEventListener) {
    
        doc.addEventListener('DOMContentLoaded', domContentLoaded, false);
    
      } else if (doc.attachEvent) {
    
        doc.attachEvent('onreadystatechange', domContentLoadedIE);
    
      } else {
  • ¶

    no add/attachevent support - safe to assume no JS -> Flash either

        debugTS('onload', false);
        catchError({type:'NO_DOM2_EVENTS', fatal:true});
    
      }
    
    } // SoundManager()
  • ¶

    SM2_DEFER details: http://www.schillmania.com/projects/soundmanager2/doc/getstarted/#lazy-loading

    if (window.SM2_DEFER === undefined || !SM2_DEFER) {
      soundManager = new SoundManager();
    }
    
    /**
     * SoundManager public interfaces
     * ------------------------------
     */
    
    window.SoundManager = SoundManager; // constructor
    window.soundManager = soundManager; // public API, flash callbacks etc.
    
    }(window));