/****************************************************************************
* JW WMV Player version 1.1, created with M$ Silverlight 1.0
*
* This file contains all logic for the JW WMV Player. For a functional setup,
* the following two files are also needed:
* - silverlight.js (for instantiating the silverlight plugin)
* - wmvplayer.xaml (or another XAML skin describing the player graphics)
*
* More info: http://www.jw.com/?item=JW_WMV_Player
****************************************************************************/
if (typeof jw == "undefined") {
    var jw = new Object();
    jw.utils = new Object();
}
/****************************************************************************
* The player wrapper; loads config variables and starts MVC cycle.
****************************************************************************/
jw.Player = function(cnt, src, cfg) {
    this.controller;
    this.model;
    this.view;
    this.configuration = {
        backgroundcolor: 'FFFFFF',
        windowless: 'false',
        file: '',
        height: '260',
        image: '',
        backcolor: 'FFFFFF',
        frontcolor: '000000',
        lightcolor: '000000',
        screencolor: '000000',
        width: '320',
        logo: '',
        overstretch: 'false',
        shownavigation: 'true',
        showstop: 'false',
        showdigits: 'true',
        usefullscreen: 'true',
        usemute: 'false',
        autostart: 'false',
        bufferlength: '3',
        duration: '0',
        repeat: 'false',
        sender: '',
        start: '0',
        volume: '90',
        link: '',
        linkfromdisplay: 'false',
        linktarget: '_self'
    };
    for (itm in this.configuration) {
        if (cfg[itm] != undefined) {
            if (itm.indexOf('color') > 0) {
                this.configuration[itm] = cfg[itm].substr(cfg[itm].length - 6);
            } else {
                this.configuration[itm] = cfg[itm];
            }
        }
    }
    Silverlight.createObjectEx({
        source: src,
        parentElement: cnt,
        properties: {
            width: this.configuration['width'],
            height: this.configuration['height'],
            version: '1.0',
            inplaceInstallPrompt: true,
            isWindowless: this.configuration['windowless'],
            background: '#' + this.configuration['backgroundcolor']
        },
        events: {
            onLoad: this.onLoadHandler,
            onError: null
        },
        context: this
    });
}
jw.Player.prototype = {
    addListener: function(typ, fcn) {
        this.view.listeners.push({ type: typ, func: fcn });
    },
    getConfig: function() {
        return this.configuration;
    },
    onLoadHandler: function(pid, tgt, sdr) {
        tgt.configuration['sender'] = sdr;
        tgt.controller = new jw.Controller(tgt.configuration);
        tgt.view = new jw.View(tgt.configuration, tgt.controller);
        tgt.model = new jw.Model(tgt.configuration, tgt.controller, tgt.view);
        tgt.controller.startMVC(tgt.view, tgt.model);
    },
    sendEvent: function(typ, prm) {
        switch (typ.toUpperCase()) {
            case 'LINK':
                this.controller.setLink();
                break;
            case 'LOAD':
                this.controller.setLoad(prm);
                break;
            case 'MUTE':
                this.controller.setMute();
                break;
            case 'PLAY':
                this.controller.setPlay();
                break;
            case 'SCRUB':
                this.controller.setScrub(prm);
                break;
            case 'STOP':
                this.controller.setStop();
                break;
            case 'VOLUME':
                this.controller.setVolume(prm);
                break;
        }
    }
}
/****************************************************************************
* The controller of the player MVC triad, which processes all user input.
****************************************************************************/
jw.Controller = function(cfg) {
    this.configuration = cfg;
}
jw.Controller.prototype = {
    startMVC: function(vie, mdl) {
        this.view = vie;
        this.model = mdl;
        if (this.configuration['usemute'] == 'true') {
            this.view.onVolume(0);
            this.view.onMute(true);
            this.model.goVolume(0);
        } else {
            this.view.onVolume(this.configuration['volume']);
            this.model.goVolume(this.configuration['volume']);
        }
        if (this.configuration['autostart'] == 'true') {
            this.model.goStart();
        } else {
            this.model.goPause();
        }
    },
    setState: function(old, stt) {
        this.state = stt;
        var pos = this.configuration['start'];
        if (old == 'Closed' && pos > 0) {
            setTimeout(jw.utils.delegate(this, this.setScrub), 200, pos);
        }
    },
    setLink: function() {
        if (this.configuration['linktarget'].indexOf('javascript:') == 0) {
            return Function(this.configuration['linktarget']).apply();
        } else if (this.configuration['linktarget'] == '_blank') {
            window.open(this.configuration['link']);
        } else if (this.configuration['linktarget'] != '') {
            window.location = this.configuration['link'];
        }
    },
    setLoad: function(fil) {
        if (this.model.state != "Closed") {
            this.model.goStop();
        }
        this.configuration['file'] = fil;
        if (this.configuration['autostart'] == 'true') {
            setTimeout(jw.utils.delegate(this.model, this.model.goStart), 100);
        }
    },
    setMute: function() {
        if (this.configuration['usemute'] == 'true') {
            this.configuration['usemute'] = 'false';
            this.model.goVolume(this.configuration['volume']);
            this.view.onMute(false);
        } else {
            this.configuration['usemute'] = 'true';
            this.model.goVolume(0);
            this.view.onMute(true);
        }
    },
    setPlay: function() {
        if (this.state == 'Buffering' || this.state == 'Playing') {
            if (this.configuration['duration'] == 0) {
                this.model.goStop();
            } else {
                this.model.goPause();
            }
        } else {
            this.model.goStart();
        }
    },
    setScrub: function(sec) {
        if (sec < 2) {
            sec = 0;
        } else if (sec > this.configuration['duration'] - 4) {
            sec = this.configuration['duration'] - 4;
        }
        if (this.state == 'Buffering' || this.state == 'Playing') {
            this.model.goStart(sec);
        } else {
            this.model.goPause(sec);
        }
    },
    setStop: function() {
        this.model.goStop();
    },
    setVolume: function(pct) {
        if (pct < 0) { pct = 0; } else if (pct > 100) { pct = 100; }
        this.configuration['volume'] = Math.round(pct);
        this.model.goVolume(pct);
        this.view.onVolume(pct);
        if (this.configuration['usemute'] == 'true') {
            this.configuration['usemute'] = 'false';
            this.view.onMute(false);
        }
    },
    setFullscreen: function() {
        var fss = !this.configuration['sender'].getHost().content.FullScreen;
        this.configuration['sender'].getHost().content.FullScreen = fss;
        jw.utils.delegate(this.view, this.view.onFullscreen);
    }
}
/****************************************************************************
* The view of the player MVC triad, which manages the graphics.
****************************************************************************/
jw.View = function(cfg, ctr) {
    this.configuration = cfg;
    this.listeners = Array();
    this.controller = ctr;
    this.fstimeout;
    this.fslistener;
    this.display = this.configuration['sender'].findName("PlayerDisplay");
    this.controlbar = this.configuration['sender'].findName("PlayerControls");
    this.configuration['sender'].getHost().content.onResize =
                jw.utils.delegate(this, this.resizePlayer);
    this.configuration['sender'].getHost().content.onFullScreenChange =
                jw.utils.delegate(this, this.onFullscreen);
    this.assignColorsClicks();
    this.resizePlayer();
}
jw.View.prototype = {
    onBuffer: function(pct) {
        var snd = this.configuration['sender'];
        if (pct == 0) {
            snd.findName("BufferText").Text = null;
        } else {
            pct < 10 ? pct = "0" + pct : pct = "" + pct;
            snd.findName("BufferText").Text = pct;
        }
        this.delegate('BUFFER', [pct]);
    },
    onFullscreen: function(fss) {
        var snd = this.configuration['sender'];
        var fst = snd.getHost().content.FullScreen;
        if (fst) {
            this.fstimeout = setTimeout(jw.utils.delegate(this,
                                this.hideFSControls), 2000);
            this.fslistener = this.display.addEventListener('MouseMove',
                                jw.utils.delegate(this, this.showFSControls));
            snd.findName("FullscreenSymbol").Visibility = "Collapsed";
            snd.findName("FullscreenOffSymbol").Visibility = "Visible";
        } else {
            clearTimeout(this.fstimeout);
            this.display.removeEventListener("MouseMove", this.fslistener);
            this.controlbar.Visibility = "Visible";
            this.display.Cursor = "Hand";
            snd.findName("FullscreenSymbol").Visibility = "Visible";
            snd.findName("FullscreenOffSymbol").Visibility = "Collapsed";
        }
        this.resizePlayer();
        this.delegate('FULLSCREEN');
    },
    showFSControls: function(sdr, arg) {
        var vbt = sdr.findName('PlayerControls');
        var yps = arg.GetPosition(vbt).Y;
        clearTimeout(this.fstimeout);
        this.controlbar.Visibility = "Visible";
        this.display.Cursor = "Hand";
        if (yps < 0) {
            this.fstimeout = setTimeout(jw.utils.delegate(this,
                                this.hideFSControls), 2000);
        }
    },
    hideFSControls: function() {
        this.controlbar.Visibility = "Collapsed";
        this.display.Cursor = "None";
    },
    onLoad: function(pct) {
        var snd = this.configuration['sender'];
        var max = snd.findName("TimeSlider").Width;
        snd.findName("DownloadProgress").Width = Math.round(max * pct / 100);
        this.delegate('LOAD', [pct]);
    },
    onMute: function(mut) {
        var snd = this.configuration['sender'];
        this.configuration['usemute'] = '' + mut;
        if (mut) {
            snd.findName("VolumeHighlight").Visibility = "Collapsed";
            snd.findName("MuteSymbol").Visibility = "Visible";
            snd.findName("MuteOffSymbol").Visibility = "Collapsed";
            if (this.state == 'Playing') {
                snd.findName("MuteIcon").Visibility = "Visible";
            }
        } else {
            snd.findName("VolumeHighlight").Visibility = "Visible";
            snd.findName("MuteSymbol").Visibility = "Collapsed";
            snd.findName("MuteOffSymbol").Visibility = "Visible";
            snd.findName("MuteIcon").Visibility = "Collapsed";
        }
        this.delegate('MUTE');
    },
    onState: function(old, stt) {
        var snd = this.configuration['sender'];
        this.state = stt;
        if (stt == 'Buffering' || stt == 'Playing' || stt == 'Opening') {
            snd.findName("PlayIcon").Visibility = "Collapsed";
            snd.findName("PlaySymbol").Visibility = "Collapsed";
            snd.findName("PlayOffSymbol").Visibility = "Visible";
            if (stt == 'Playing') {
                snd.findName("BufferIcon").Visibility = "Collapsed";
                snd.findName("BufferText").Visibility = "Collapsed";
                if (this.configuration['usemute'] == 'true') {
                    snd.findName("MuteIcon").Visibility = "Visible";
                }
            } else {
                snd.findName("BufferIcon").Visibility = "Visible";
                snd.findName("BufferText").Visibility = "Visible";
            }
        } else {
            snd.findName("MuteIcon").Visibility = "Collapsed";
            snd.findName("BufferIcon").Visibility = "Collapsed";
            snd.findName("BufferText").Visibility = "Collapsed";
            snd.findName("PlayOffSymbol").Visibility = "Collapsed";
            snd.findName("PlaySymbol").Visibility = "Visible";
            if (this.configuration['linkfromdisplay'] == 'true') {
                snd.findName("PlayIcon").Visibility = "Collapsed";
            } else {
                snd.findName("PlayIcon").Visibility = "Visible";
            }
        }
        try {
            if (!(old == 'Completed' && stt == 'Buffering') &&
                                !(old == 'Buffering' && stt == 'Paused')) {
                playerStatusChange(old.toUpperCase(), stt.toUpperCase());
            }
        } catch (err) { }
        this.delegate('STATE', [old, stt]);
    },
    onTime: function(elp, dur) {
        var snd = this.configuration['sender'];
        var snd = this.configuration['sender'];
        var max = snd.findName("TimeSlider").Width;
        if (dur > 0) {
            var pos = Math.round(max * elp / dur);
            this.configuration['duration'] = dur;
            snd.findName("ElapsedText").Text = jw.utils.timestring(elp);
            snd.findName("RemainingText").Text = jw.utils.timestring(dur - elp);
            snd.findName("TimeSymbol").Visibility = "Visible";
            snd.findName("TimeSymbol")['Canvas.Left'] = pos + 4;
            snd.findName("TimeHighlight").Width = pos - 2;
        } else {
            snd.findName("TimeSymbol").Visibility = "Collapsed";
        }
        this.delegate('TIME', [elp, dur]);
    },
    onVolume: function(pct) {
        var snd = this.configuration['sender'];
        snd.findName("VolumeHighlight").Width = Math.round(pct / 5);
        this.delegate('VOLUME', [pct]);
    },
    assignColorsClicks: function() {
        this.display.Cursor = "Hand";
        this.display.Background = "#FF" + this.configuration['screencolor'];
        if (this.configuration['linkfromdisplay'] == 'false') {
            this.display.addEventListener('MouseLeftButtonUp',
                                jw.utils.delegate(this.controller,
                                this.controller.setPlay));
        } else {
            this.display.addEventListener('MouseLeftButtonUp',
                                jw.utils.delegate(this.controller,
                                this.controller.setLink));
            this.display.findName("PlayIcon").Visibility = "Collapsed";
        }
        if (this.configuration['logo'] != '') {
            this.display.findName('OverlayCanvas').Visibility = "Visible";
            this.display.findName('OverlayLogo').ImageSource =
                                this.configuration['logo'];
        }
        this.controlbar.findName("ControlbarBack").Fill =
                        "#FF" + this.configuration['backcolor'];
        this.assignButton('Play', this.controller.setPlay);
        this.assignButton('Stop', this.controller.setStop);
        this.configuration['sender'].findName('ElapsedText').Foreground =
                        "#FF" + this.configuration['frontcolor'];
        this.assignSlider('Time', this.changeTime);
        this.configuration['sender'].findName('DownloadProgress').Fill =
                        "#FF" + this.configuration['frontcolor'];
        this.configuration['sender'].findName('RemainingText').Foreground =
                        "#FF" + this.configuration['frontcolor'];
        this.assignButton('Link', this.controller.setLink);
        this.assignButton('Fullscreen', this.controller.setFullscreen);
        this.assignButton('Mute', this.controller.setMute);
        this.assignSlider('Volume', this.changeVolume);
    },
    assignButton: function(btn, act) {
        var el1 = this.configuration['sender'].findName(btn + 'Button');
        el1.Cursor = "Hand";
        el1.addEventListener('MouseLeftButtonUp',
                        jw.utils.delegate(this.controller, act));
        el1.addEventListener('MouseEnter',
                        jw.utils.delegate(this, this.rollOver));
        el1.addEventListener('MouseLeave',
                        jw.utils.delegate(this, this.rollOut));
        this.configuration['sender'].findName(btn + 'Symbol').Fill =
                        "#FF" + this.configuration['frontcolor'];
        try {
            this.configuration['sender'].findName(btn + 'OffSymbol').Fill =
                                "#FF" + this.configuration['frontcolor'];
        } catch (e) { }
    },
    assignSlider: function(sld, act) {
        var el1 = this.configuration['sender'].findName(sld + 'Button');
        el1.Cursor = "Hand";
        el1.addEventListener('MouseLeftButtonUp',
                        jw.utils.delegate(this, act));
        el1.addEventListener('MouseEnter',
                        jw.utils.delegate(this, this.rollOver));
        el1.addEventListener('MouseLeave',
                        jw.utils.delegate(this, this.rollOut));
        this.configuration['sender'].findName(sld + 'Slider').Fill =
                        "#FF" + this.configuration['frontcolor'];
        this.configuration['sender'].findName(sld + 'Highlight').Fill =
                        "#FF" + this.configuration['frontcolor'];
        this.configuration['sender'].findName(sld + 'Symbol').Fill =
                        "#FF" + this.configuration['frontcolor'];
    },
    delegate: function(typ, arg) {
        for (var i = 0; i < this.listeners.length; i++) {
            if (this.listeners[i]['type'].toUpperCase() == typ) {
                this.listeners[i]['func'].apply(null, arg);
            }
        }
    },
    rollOver: function(sdr) {
        var str = sdr.Name.substr(0, sdr.Name.length - 6);
        this.configuration['sender'].findName(str + 'Symbol').Fill =
                        "#FF" + this.configuration['lightcolor'];
        try {
            this.configuration['sender'].findName(str + 'OffSymbol').Fill =
                                "#FF" + this.configuration['lightcolor'];
        } catch (e) { }
    },
    rollOut: function(sdr) {
        var str = sdr.Name.substr(0, sdr.Name.length - 6);
        this.configuration['sender'].findName(str + 'Symbol').Fill =
                        "#FF" + this.configuration['frontcolor'];
        try {
            this.configuration['sender'].findName(str + 'OffSymbol').Fill =
                                "#FF" + this.configuration['frontcolor'];
        } catch (e) { }
    },
    changeTime: function(sdr, arg) {
        var tbt = sdr.findName('TimeSlider');
        var xps = arg.GetPosition(tbt).X;
        var sec = Math.floor(xps / tbt.Width * this.configuration['duration']);
        this.controller.setScrub(sec);
    },
    changeVolume: function(sdr, arg) {
        var vbt = sdr.findName('VolumeButton');
        var xps = arg.GetPosition(vbt).X;
        this.controller.setVolume(xps * 5);
    },
    resizePlayer: function() {
        var wid = this.configuration['sender'].getHost().content.actualWidth;
        var hei = this.configuration['sender'].getHost().content.actualHeight;
        var fss = this.configuration['sender'].getHost().content.FullScreen;
        if (this.configuration['shownavigation'] == 'true') {
            if (fss == true) {
                this.resizeDisplay(wid, hei);
                this.controlbar['Canvas.Left'] = Math.round(wid / 2 - 250);
                this.resizeControlbar(500, hei - this.controlbar.Height - 16);
                this.controlbar.findName('ControlbarBack')['Opacity'] = 0.5;
            } else {
                this.resizeDisplay(wid, hei - 20);
                this.controlbar['Canvas.Left'] = 0;
                this.resizeControlbar(wid, hei - this.controlbar.Height);
                this.controlbar.findName('ControlbarBack')['Opacity'] = 1;
            }
        } else {
            this.resizeDisplay(wid, hei);
        }
    },
    resizeDisplay: function(wid, hei) {
        this.stretchElement('PlayerDisplay', wid, hei);
        this.stretchElement('VideoWindow', wid, hei);
        this.stretchElement('PlaceholderImage', wid, hei);
        this.centerElement('PlayIcon', wid, hei);
        this.centerElement('MuteIcon', wid, hei);
        this.centerElement('BufferIcon', wid, hei);
        this.centerElement('BufferText', wid, hei);
        this.display.findName('OverlayCanvas')['Canvas.Left'] = wid -
                        this.display.findName('OverlayCanvas').Width - 10;
        this.display.Visibility = "Visible";
    },
    resizeControlbar: function(wid, yps, alp) {
        this.controlbar['Canvas.Top'] = yps;
        this.stretchElement('PlayerControls', wid);
        this.stretchElement('ControlbarBack', wid);
        this.placeElement('PlayButton', 0);
        var lft = 17;
        this.placeElement('VolumeButton', wid - 24);
        this.placeElement('MuteButton', wid - 37);
        var rgt = 37;
        if (this.configuration['showstop'] == 'true') {
            this.placeElement('StopButton', lft);
            lft += 17;
        } else {
            this.controlbar.findName('StopButton').Visibility = "Collapsed";
        }
        if (this.configuration['usefullscreen'] == 'true') {
            rgt += 18;
            this.placeElement('FullscreenButton', wid - rgt);
        } else {
            this.controlbar.findName('FullscreenButton').Visibility =
                                "Collapsed";
        }
        if (this.configuration['link'] != '') {
            rgt += 18;
            this.placeElement('LinkButton', wid - rgt);
        } else {
            this.controlbar.findName('LinkButton').Visibility = "Collapsed";
        }
        if (this.configuration['showdigits'] == 'true' && wid - rgt - lft > 160) {
            rgt += 35;
            this.controlbar.findName('RemainingButton').Visibility = "Visible";
            this.controlbar.findName('ElapsedButton').Visibility = "Visible";
            this.placeElement('RemainingButton', wid - rgt);
            this.placeElement('ElapsedButton', lft);
            lft += 35;
        } else {
            this.controlbar.findName('RemainingButton').Visibility =
                                "Collapsed";
            this.controlbar.findName('ElapsedButton').Visibility = "Collapsed";
        }
        this.placeElement('TimeButton', lft);
        this.stretchElement('TimeButton', wid - lft - rgt);
        this.stretchElement('TimeShadow', wid - lft - rgt);
        this.stretchElement('TimeStroke', wid - lft - rgt);
        this.stretchElement('TimeFill', wid - lft - rgt);
        this.stretchElement('TimeSlider', wid - lft - rgt - 10);
        this.stretchElement('DownloadProgress', wid - lft - rgt - 10);
        var tsb = this.configuration['sender'].findName('TimeSymbol');
        this.stretchElement('TimeHighlight', tsb['Canvas.Left'] - 5);
        this.controlbar.Visibility = "Visible";
    },
    centerElement: function(nam, wid, hei) {
        var elm = this.configuration['sender'].findName(nam);
        elm['Canvas.Left'] = Math.round(wid / 2 - elm.Width / 2);
        elm['Canvas.Top'] = Math.round(hei / 2 - elm.Height / 2);
    },
    stretchElement: function(nam, wid, hei) {
        var elm = this.configuration['sender'].findName(nam);
        elm.Width = wid;
        if (hei != undefined) { elm.Height = hei; }
    },
    placeElement: function(nam, xps, yps) {
        var elm = this.configuration['sender'].findName(nam);
        elm['Canvas.Left'] = xps;
        if (yps) { elm['Canvas.Top'] = yps; }
    }
}
/****************************************************************************
* The model of the player MVC triad, which stores all playback logic.
****************************************************************************/
jw.Model = function(cfg, ctr, vie) {
    this.configuration = cfg;
    this.controller = ctr;
    this.view = vie;
    this.video = this.configuration['sender'].findName("VideoWindow");
    this.preview = this.configuration['sender'].findName("PlaceholderImage");
    var str = {
        'true': 'UniformToFill',
        'false': 'Uniform',
        'fit': 'Fill',
        'none': 'None'
    }
    this.state = this.video.CurrentState;
    this.timeint;
    this.video.Stretch = str[this.configuration['overstretch']];
    this.preview.Stretch = str[this.configuration['overstretch']];
    this.video.BufferingTime =
                jw.utils.spanstring(this.configuration['bufferlength']);
    this.video.AutoPlay = true;
    this.video.AddEventListener("CurrentStateChanged",
                jw.utils.delegate(this, this.stateChanged));
    this.video.AddEventListener("MediaEnded",
                jw.utils.delegate(this, this.mediaEnded));
    this.video.AddEventListener("BufferingProgressChanged",
                jw.utils.delegate(this, this.bufferChanged));
    this.video.AddEventListener("DownloadProgressChanged",
                jw.utils.delegate(this, this.downloadChanged));
    if (this.configuration['image'] != '') {
        this.preview.Source = this.configuration['image'];
    }
}
jw.Model.prototype = {
    goPause: function(sec) {
        this.video.pause();
        if (!isNaN(sec)) {
            this.video.Position = jw.utils.spanstring(sec);
        }
        this.timeChanged();
    },
    goStart: function(sec) {
        this.video.Visibility = 'Visible';
        this.preview.Visibility = 'Collapsed';
        if (this.state == "Closed") {
            this.video.Source = this.configuration['file'];
        } else {
            this.video.play();
        }
        if (!isNaN(sec)) {
            this.video.Position = jw.utils.spanstring(sec);
        }
    },
    goStop: function() {
        this.video.Visibility = 'Collapsed';
        this.preview.Visibility = 'Visible';
        this.goPause(0);
        this.video.Source = 'null';
        this.view.onBuffer(0);
        clearInterval(this.timeint);
    },
    goVolume: function(pct) {
        this.video.Volume = pct / 100;
    },
    stateChanged: function() {
        var stt = this.video.CurrentState;
        if (stt != this.state) {
            this.controller.setState(this.state, stt);
            this.view.onState(this.state, stt);
            this.state = stt;
            this.configuration['duration'] =
                                Math.round(this.video.NaturalDuration.Seconds * 10) / 10;
            if (stt != "Playing" && stt != "Buffering" && stt != "Opening") {
                clearInterval(this.timeint);
            } else {
                this.timeint = setInterval(jw.utils.delegate(
                                        this, this.timeChanged), 100);
            }
        }
    },
    mediaEnded: function() {
        if (this.configuration['repeat'] == 'true') {
            this.goStart(0);
        } else {
            this.state = 'Completed';
            this.view.onState(this.state, 'Completed');
            this.video.Visibility = 'Collapsed';
            this.preview.Visibility = 'Visible';
            this.goPause(0);
        }
    },
    bufferChanged: function() {
        var bfr = Math.round(this.video.BufferingProgress * 100);
        this.view.onBuffer(bfr);
    },
    downloadChanged: function() {
        var dld = Math.round(this.video.DownloadProgress * 100);
        this.view.onLoad(dld);
    },
    timeChanged: function() {
        var pos = Math.round(this.video.Position.Seconds * 10) / 10;
        this.view.onTime(pos, this.configuration['duration']);
    }
}
/****************************************************************************
* Some utility functions.
****************************************************************************/
jw.utils.delegate = function(obj, fcn) {
    return function() {
        return fcn.apply(obj, arguments);
    }
}
jw.utils.timestring = function(stp) {
    var hrs = Math.floor(stp / 3600);
    var min = Math.floor(stp % 3600 / 60);
    var sec = Math.round(stp % 60);
    var str = "";
    sec > 9 ? str += sec : str += '0' + sec;
    min > 9 ? str = min + ":" + str : str = '0' + min + ":" + str;
    hrs > 0 ? str = hrs + ":" + str : null;
    return str;
}
jw.utils.spanstring = function(stp) {
    var hrs = Math.floor(stp / 3600);
    var min = Math.floor(stp % 3600 / 60);
    var sec = Math.round(stp % 60 * 10) / 10;
    var str = hrs + ':' + min + ':' + sec;
    return str;
}