1 /* TODO: Separate Project-specific data from Source */

     2 

     3 /* model.js is where data is stored in a standard form, whatever the serializer */

     4 

     5 (function (ns) {

     6 

     7 var Model = {

     8     _SOURCE_STATUS_EMPTY : 0,

     9     _SOURCE_STATUS_WAITING : 1,

    10     _SOURCE_STATUS_READY : 2,

    11     _ID_AUTO_INCREMENT : 0,

    12     _ID_BASE : (function(_d) {

    13         function pad(n){return n<10 ? '0'+n : n}

    14         function fillrand(n) {

    15             var _res = ''

    16             for (var i=0; i<n; i++) {

    17                 _res += Math.floor(16*Math.random()).toString(16);

    18             }

    19             return _res;

    20         }

    21         return _d.getUTCFullYear() + '-'  

    22             + pad(_d.getUTCMonth()+1) + '-'  

    23             + pad(_d.getUTCDate()) + '-'

    24             + fillrand(16);

    25     })(new Date()),

    26     getUID : function() {

    27         var _n = (++this._ID_AUTO_INCREMENT).toString();

    28         while (_n.length < 4) {

    29             _n = '0' + _n

    30         }

    31         return "autoid-" + this._ID_BASE + '-' + _n;

    32     },

    33     regexpFromTextOrArray : function(_textOrArray, _testOnly) {

    34         var _testOnly = _testOnly || false;

    35         function escapeText(_text) {

    36             return _text.replace(/([\\\*\+\?\|\{\[\}\]\(\)\^\$\.\#\/])/gm, '\\$1');

    37         }

    38         var _source = 

    39             typeof _textOrArray === "string"

    40             ? escapeText(_textOrArray)

    41             : ns._(_textOrArray).map(escapeText).join("|");

    42         if (_testOnly) {

    43             return new RegExp( _source, 'im');

    44         } else {

    45             return new RegExp( '(' + _source + ')', 'gim');

    46         }

    47     },

    48     isoToDate : function(_str) {

    49         // http://delete.me.uk/2005/03/iso8601.html

    50         var regexp = "([0-9]{4})(-([0-9]{2})(-([0-9]{2})(T([0-9]{2}):([0-9]{2})(:([0-9]{2})(\.([0-9]+))?)?(Z|(([-+])([0-9]{2}):([0-9]{2})))?)?)?)?";

    51         var d = _str.match(new RegExp(regexp));

    52     

    53         var offset = 0;

    54         var date = new Date(d[1], 0, 1);

    55     

    56         if (d[3]) { date.setMonth(d[3] - 1); }

    57         if (d[5]) { date.setDate(d[5]); }

    58         if (d[7]) { date.setHours(d[7]); }

    59         if (d[8]) { date.setMinutes(d[8]); }

    60         if (d[10]) { date.setSeconds(d[10]); }

    61         if (d[12]) { date.setMilliseconds(Number("0." + d[12]) * 1000); }

    62         if (d[14]) {

    63             offset = (Number(d[16]) * 60) + Number(d[17]);

    64             offset *= ((d[15] == '-') ? 1 : -1);

    65         }

    66     

    67         offset -= date.getTimezoneOffset();

    68         time = (Number(date) + (offset * 60 * 1000));

    69         var _res = new Date();

    70         _res.setTime(Number(time));

    71         return _res;

    72     },

    73     dateToIso : function(d) {

    74         function pad(n){return n<10 ? '0'+n : n}  

    75         return d.getUTCFullYear()+'-'  

    76             + pad(d.getUTCMonth()+1)+'-'  

    77             + pad(d.getUTCDate())+'T'  

    78             + pad(d.getUTCHours())+':'  

    79             + pad(d.getUTCMinutes())+':'  

    80             + pad(d.getUTCSeconds())+'Z'  

    81     }

    82 }

    83 

    84 /*

    85  * Model.List is a class for a list of elements (e.g. annotations, medias, etc. that each have a distinct ID)

    86  */

    87 Model.List = function(_directory) {

    88     Array.call(this);

    89     this.directory = _directory;

    90     this.idIndex = [];

    91     this.__events = {};

    92     if (typeof _directory == "undefined") {

    93         console.trace();

    94         throw "Error : new Model.List(directory): directory is undefined";

    95     }

    96 }

    97 

    98 Model.List.prototype = new Array();

    99 

   100 Model.List.prototype.hasId = function(_id) {

   101     return ns._(this.idIndex).include(_id);

   102 }

   103 

   104 /* On recent browsers, forEach and map are defined and do what we want.

   105  * Otherwise, we'll use the Underscore.js functions

   106  */

   107 if (typeof Array.prototype.forEach === "undefined") {

   108     Model.List.prototype.forEach = function(_callback) {

   109         var _this = this;

   110         ns._(this).forEach(function(_value, _key) {

   111             _callback(_value, _key, _this);

   112         });

   113     }

   114 }

   115 

   116 if (typeof Array.prototype.map === "undefined") {

   117     Model.List.prototype.map = function(_callback) {

   118         var _this = this;

   119         return ns._(this).map(function(_value, _key) {

   120             return _callback(_value, _key, _this);

   121         });

   122     }

   123 }

   124 

   125 Model.List.prototype.pluck = function(_key) {

   126     return this.map(function(_value) {

   127         return _value[_key];

   128     });

   129 }

   130 

   131 /* We override Array's filter function because it doesn't return an Model.List

   132  */

   133 Model.List.prototype.filter = function(_callback) {

   134     var _this = this,

   135         _res = new Model.List(this.directory);

   136     _res.addElements(ns._(this).filter(function(_value, _key) {

   137         return _callback(_value, _key, _this);

   138     }));

   139     return _res;

   140 }

   141 

   142 Model.List.prototype.slice = function(_start, _end) {

   143     var _res = new Model.List(this.directory);

   144     _res.addElements(Array.prototype.slice.call(this, _start, _end));

   145     return _res;

   146 }

   147 

   148 Model.List.prototype.splice = function(_start, _end) {

   149     var _res = new Model.List(this.directory);

   150     _res.addElements(Array.prototype.splice.call(this, _start, _end));

   151     this.idIndex.splice(_start, _end);

   152     return _res;

   153 }

   154 

   155 /* Array has a sort function, but it's not as interesting as Underscore.js's sortBy

   156  * and won't return a new Model.List

   157  */

   158 Model.List.prototype.sortBy = function(_callback) {

   159     var _this = this,

   160         _res = new Model.List(this.directory);

   161     _res.addElements(ns._(this).sortBy(function(_value, _key) {

   162         return _callback(_value, _key, _this);

   163     }));

   164     return _res;

   165 }

   166 

   167 /* Title and Description are basic information for (almost) all element types,

   168  * here we can search by these criteria

   169  */

   170 Model.List.prototype.searchByTitle = function(_text) {

   171     var _rgxp = Model.regexpFromTextOrArray(_text, true);

   172     return this.filter(function(_element) {

   173         return _rgxp.test(_element.title);

   174     });

   175 }

   176 

   177 Model.List.prototype.searchByDescription = function(_text) {

   178     var _rgxp = Model.regexpFromTextOrArray(_text, true);

   179     return this.filter(function(_element) {

   180         return _rgxp.test(_element.description);

   181     });

   182 }

   183 

   184 Model.List.prototype.searchByTextFields = function(_text) {

   185     var _rgxp =  Model.regexpFromTextOrArray(_text, true);

   186     return this.filter(function(_element) {

   187         return _rgxp.test(_element.description) || _rgxp.test(_element.title);

   188     });

   189 }

   190 

   191 Model.List.prototype.getTitles = function() {

   192     return this.map(function(_el) {

   193         return _el.title;

   194     });

   195 }

   196 

   197 Model.List.prototype.addId = function(_id) {

   198     var _el = this.directory.getElement(_id)

   199     if (!this.hasId(_id) && typeof _el !== "undefined") {

   200         this.idIndex.push(_id);

   201         Array.prototype.push.call(this, _el);

   202     }

   203 }

   204 

   205 Model.List.prototype.push = function(_el) {

   206     if (typeof _el === "undefined") {

   207         return;

   208     }

   209     var _index = (ns._(this.idIndex).indexOf(_el.id));

   210     if (_index === -1) {

   211         this.idIndex.push(_el.id);

   212         Array.prototype.push.call(this, _el);

   213     } else {

   214         this[_index] = _el;

   215     }

   216 }

   217 

   218 Model.List.prototype.addIds = function(_array) {

   219     var _l = _array.length,

   220         _this = this;

   221     ns._(_array).forEach(function(_id) {

   222         _this.addId(_id);

   223     });

   224 }

   225 

   226 Model.List.prototype.addElements = function(_array) {

   227     var _this = this;

   228     ns._(_array).forEach(function(_el) {

   229         _this.push(_el);

   230     });

   231 }

   232 

   233 Model.List.prototype.removeId = function(_id, _deleteFromDirectory) {

   234     var _deleteFromDirectory = _deleteFromDirectory || false,

   235         _index = (ns._(this.idIndex).indexOf(_id));

   236     if (_index !== -1) {

   237         this.splice(_index,1);

   238     }

   239     if (_deleteFromDirectory) {

   240         delete this.directory.elements[_id];

   241     }

   242 }

   243 

   244 Model.List.prototype.removeElement = function(_el, _deleteFromDirectory) {

   245     var _deleteFromDirectory = _deleteFromDirectory || false;

   246     this.removeId(_el.id);

   247 }

   248 

   249 Model.List.prototype.removeIds = function(_list, _deleteFromDirectory) {

   250     var _deleteFromDirectory = _deleteFromDirectory || false,

   251         _this = this;

   252     ns._(_list).forEach(function(_id) {

   253         _this.removeId(_id);

   254     });

   255 }

   256 

   257 Model.List.prototype.removeElements = function(_list, _deleteFromDirectory) {

   258     var _deleteFromDirectory = _deleteFromDirectory || false,

   259         _this = this;

   260     ns._(_list).forEach(function(_el) {

   261         _this.removeElement(_el);

   262     });

   263 }

   264 

   265 Model.List.prototype.on = function(_event, _callback) {

   266     if (typeof this.__events[_event] === "undefined") {

   267         this.__events[_event] = [];

   268     }

   269     this.__events[_event].push(_callback);

   270 }

   271 

   272 Model.List.prototype.off = function(_event, _callback) {

   273     if (typeof this.__events[_event] !== "undefined") {

   274         this.__events[_event] = ns._(this.__events[_event]).reject(function(_fn) {

   275             return _fn === _callback;

   276         });

   277     }

   278 }

   279 

   280 Model.List.prototype.trigger = function(_event, _data) {

   281     var _list = this;

   282     ns._(this.__events[_event]).each(function(_callback) {

   283         _callback.call(_list, _data);

   284     });

   285 }

   286 

   287 /* A simple time management object, that helps converting millisecs to seconds and strings,

   288  * without the clumsiness of the original Date object.

   289  */

   290 

   291 Model.Time = function(_milliseconds) {

   292     this.milliseconds = 0;

   293     this.setMilliseconds(_milliseconds);

   294 }

   295 

   296 Model.Time.prototype.setMilliseconds = function(_milliseconds) {

   297     var _ante = _milliseconds;

   298     switch(typeof _milliseconds) {

   299         case "string":

   300             this.milliseconds = parseFloat(_milliseconds);

   301             break;

   302         case "number":

   303             this.milliseconds = _milliseconds;

   304             break;

   305         case "object":

   306             this.milliseconds = parseFloat(_milliseconds.valueOf());

   307             break;

   308         default:

   309             this.milliseconds = 0;

   310     }

   311     if (this.milliseconds === NaN) {

   312         this.milliseconds = _ante;

   313     }

   314 }

   315 

   316 Model.Time.prototype.setSeconds = function(_seconds) {

   317     this.milliseconds = 1000 * _seconds;

   318 }

   319 

   320 Model.Time.prototype.getSeconds = function() {

   321     return this.milliseconds / 1000;

   322 }

   323 

   324 Model.Time.prototype.getHMS = function() {

   325     var _totalSeconds = Math.abs(Math.floor(this.getSeconds()));

   326     return {

   327         hours : Math.floor(_totalSeconds / 3600),

   328         minutes : (Math.floor(_totalSeconds / 60) % 60),

   329         seconds : _totalSeconds % 60

   330     } 

   331 }

   332 

   333 Model.Time.prototype.add = function(_milliseconds) {

   334     this.milliseconds += new Model.Time(_milliseconds).milliseconds;

   335 }

   336 

   337 Model.Time.prototype.valueOf = function() {

   338     return this.milliseconds;

   339 }

   340 

   341 Model.Time.prototype.toString = function() {

   342     function pad(_n) {

   343         var _res = _n.toString();

   344         while (_res.length < 2) {

   345             _res = '0' + _res;

   346         }

   347         return _res;

   348     }

   349     var _hms = this.getHMS(),

   350         _res = '';

   351     if (_hms.hours) {

   352         _res += pad(_hms.hours) + ':'

   353     }

   354     _res += pad(_hms.minutes) + ':' + pad(_hms.seconds);

   355     return _res;

   356 }

   357 

   358 /* Model.Reference handles references between elements

   359  */

   360 

   361 Model.Reference = function(_source, _idRef) {

   362     this.source = _source;

   363     this.id = _idRef;

   364     if (typeof _idRef === "object") {

   365         this.isList = true;

   366     } else {

   367         this.isList = false;

   368     }

   369     this.refresh();

   370 }

   371 

   372 Model.Reference.prototype.refresh = function() {

   373     if (this.isList) {

   374         this.contents = new Model.List(this.source.directory);

   375         this.contents.addIds(this.id);

   376     } else {

   377         this.contents = this.source.getElement(this.id);

   378     }

   379     

   380 }

   381 

   382 Model.Reference.prototype.getContents = function() {

   383     if (typeof this.contents === "undefined" || (this.isList && this.contents.length != this.id.length)) {

   384         this.refresh();

   385     }

   386     return this.contents;

   387 }

   388 

   389 Model.Reference.prototype.isOrHasId = function(_idRef) {

   390     if (this.isList) {

   391         return (ns._(this.id).indexOf(_idRef) !== -1)

   392     } else {

   393         return (this.id == _idRef);

   394     }

   395 }

   396 

   397 /* */

   398 

   399 Model.Element = function(_id, _source) {

   400     this.elementType = 'element';

   401     if (typeof _source === "undefined") {

   402         return;

   403     }

   404     if (typeof _id === "undefined" || !_id) {

   405         _id = Model.getUID();

   406     }

   407     this.source = _source;

   408     this.id = _id;

   409     this.title = "";

   410     this.description = "";

   411     this.__events = {}

   412     this.source.directory.addElement(this);

   413 }

   414 

   415 Model.Element.prototype.toString = function() {

   416     return this.elementType + (this.elementType !== 'element' ? ', id=' + this.id + ', title="' + this.title + '"' : '');

   417 }

   418 

   419 Model.Element.prototype.setReference = function(_elementType, _idRef) {

   420     this[_elementType] = new Model.Reference(this.source, _idRef);

   421 }

   422 

   423 Model.Element.prototype.getReference = function(_elementType) {

   424     if (typeof this[_elementType] !== "undefined") {

   425         return this[_elementType].getContents();

   426     }

   427 }

   428 

   429 Model.Element.prototype.getRelated = function(_elementType, _global) {

   430     _global = (typeof _global !== "undefined" && _global);

   431     var _this = this;

   432     return this.source.getList(_elementType, _global).filter(function(_el) {

   433         var _ref = _el[_this.elementType];

   434         return _ref && _ref.isOrHasId(_this.id);

   435     });

   436 }

   437 

   438 Model.Element.prototype.on = function(_event, _callback) {

   439     if (typeof this.__events[_event] === "undefined") {

   440         this.__events[_event] = [];

   441     }

   442     this.__events[_event].push(_callback);

   443 }

   444 

   445 Model.Element.prototype.off = function(_event, _callback) {

   446     if (typeof this.__events[_event] !== "undefined") {

   447         this.__events[_event] = ns._(this.__events[_event]).reject(function(_fn) {

   448             return _fn === _callback;

   449         });

   450     }

   451 }

   452 

   453 Model.Element.prototype.trigger = function(_event, _data) {

   454     var _element = this;

   455     ns._(this.__events[_event]).each(function(_callback) {

   456         _callback.call(_element, _data);

   457     });

   458 }

   459 

   460 /* */

   461 

   462 Model.Playable = function(_id, _source) {

   463     Model.Element.call(this, _id, _source);

   464     if (typeof _source === "undefined") {

   465         return;

   466     }

   467     this.elementType = 'playable';

   468     this.currentTime = new Model.Time();

   469     this.volume = .5;

   470     this.paused = true;

   471     this.muted = false;

   472     var _this = this;

   473     this.on("play", function() {

   474         _this.paused = false;

   475     });

   476     this.on("pause", function() {

   477         _this.paused = true;

   478     });

   479     this.on("timeupdate", function(_time) {

   480         _this.currentTime = _time;

   481     });

   482 }

   483 

   484 Model.Playable.prototype = new Model.Element();

   485 

   486 Model.Playable.prototype.getCurrentTime = function() { 

   487     return this.currentTime;

   488 }

   489 

   490 Model.Playable.prototype.getVolume = function() {

   491     return this.volume;

   492 }

   493 

   494 Model.Playable.prototype.getPaused = function() {

   495     return this.paused;

   496 }

   497 

   498 Model.Playable.prototype.getMuted = function() {

   499     return this.muted;

   500 }

   501 

   502 Model.Playable.prototype.setCurrentTime = function(_time) {

   503     this.trigger("setcurrenttime",_time);

   504 }

   505 

   506 Model.Playable.prototype.setVolume = function(_vol) {

   507     this.trigger("setvolume",_vol);

   508 }

   509 

   510 Model.Playable.prototype.setMuted = function(_muted) {

   511     this.trigger("setmuted",_muted);

   512 }

   513 

   514 Model.Playable.prototype.play = function() {

   515     this.trigger("setplay");

   516 }

   517 

   518 Model.Playable.prototype.pause = function() {

   519     this.trigger("setpause");

   520 }

   521 

   522 

   523 /* */

   524 

   525 Model.Media = function(_id, _source) {

   526     Model.Playable.call(this, _id, _source);

   527     this.elementType = 'media';

   528     this.duration = new Model.Time();

   529     this.video = '';

   530     

   531     var _this = this;

   532     this.on("timeupdate", function(_time) {

   533         _this.getAnnotations().filter(function(_a) {

   534             return (_a.end <= _time || _a.begin > _time) && _a.playing

   535         }).forEach(function(_a) {

   536             _a.playing = false;

   537             _a.trigger("leave");

   538         });

   539         _this.getAnnotations().filter(function(_a) {

   540             return _a.begin <= _time && _a.end > _time && !_a.playing

   541         }).forEach(function(_a) {

   542             _a.playing = true;

   543             _a.trigger("enter");

   544         });

   545     });

   546 }

   547 

   548 Model.Media.prototype = new Model.Playable();

   549 

   550 /* Default functions to be overriden by players */

   551     

   552 Model.Media.prototype.setDuration = function(_durationMs) {

   553     this.duration.setMilliseconds(_durationMs);

   554 }

   555 

   556 Model.Media.prototype.getAnnotations = function() {

   557     return this.getRelated("annotation");

   558 }

   559 

   560 Model.Media.prototype.getAnnotationsByTypeTitle = function(_title) {

   561     var _annTypes = this.source.getAnnotationTypes().searchByTitle(_title).pluck("id");

   562     if (_annTypes.length) {

   563         return this.getAnnotations().filter(function(_annotation) {

   564             return ns._(_annTypes).indexOf(_annotation.getAnnotationType().id) !== -1;

   565         });

   566     } else {

   567         return new Model.List(this.source.directory)

   568     }

   569 }

   570 

   571 /* */

   572 

   573 Model.Tag = function(_id, _source) {

   574     Model.Element.call(this, _id, _source);

   575     this.elementType = 'tag';

   576 }

   577 

   578 Model.Tag.prototype = new Model.Element();

   579 

   580 Model.Tag.prototype.getAnnotations = function() {

   581     return this.getRelated("annotation");

   582 }

   583 

   584 /* */

   585 Model.AnnotationType = function(_id, _source) {

   586     Model.Element.call(this, _id, _source);

   587     this.elementType = 'annotationType';

   588 }

   589 

   590 Model.AnnotationType.prototype = new Model.Element();

   591 

   592 Model.AnnotationType.prototype.getAnnotations = function() {

   593     return this.getRelated("annotation");

   594 }

   595 

   596 /* Annotation

   597  * */

   598 

   599 Model.Annotation = function(_id, _source) {

   600     Model.Element.call(this, _id, _source);

   601     this.elementType = 'annotation';

   602     this.begin = new Model.Time();

   603     this.end = new Model.Time();

   604     this.tag = new Model.Reference(_source, []);

   605     this.playing = false;

   606     var _this = this;

   607     this.on("click", function() {

   608         _this.getMedia().setCurrentTime(_this.begin);

   609     });

   610 }

   611 

   612 Model.Annotation.prototype = new Model.Element();

   613 

   614 Model.Annotation.prototype.setBegin = function(_beginMs) {

   615     this.begin.setMilliseconds(_beginMs);

   616 }

   617 

   618 Model.Annotation.prototype.setEnd = function(_beginMs) {

   619     this.end.setMilliseconds(_beginMs);

   620 }

   621 

   622 Model.Annotation.prototype.setMedia = function(_idRef) {

   623     this.setReference("media", _idRef);

   624 }

   625 

   626 Model.Annotation.prototype.getMedia = function() {

   627     return this.getReference("media");

   628 }

   629 

   630 Model.Annotation.prototype.setAnnotationType = function(_idRef) {

   631     this.setReference("annotationType", _idRef);

   632 }

   633 

   634 Model.Annotation.prototype.getAnnotationType = function() {

   635     return this.getReference("annotationType");

   636 }

   637 

   638 Model.Annotation.prototype.setTags = function(_idRefs) {

   639     this.setReference("tag", _idRefs);

   640 }

   641 

   642 Model.Annotation.prototype.getTags = function() {

   643     return this.getReference("tag");

   644 }

   645 

   646 Model.Annotation.prototype.getTagTexts = function() {

   647     return this.getTags().getTitles();

   648 }

   649 

   650 Model.Annotation.prototype.getDuration = function() {

   651     return new Model.Time(this.end.milliseconds - this.begin.milliseconds)

   652 }

   653 

   654 /* */

   655 

   656 Model.MashedAnnotation = function(_mashup, _annotation) {

   657     Model.Element.call(this, _mashup.id + "_" + _annotation.id, _annotation.source);

   658     this.elementType = 'mashedAnnotation';

   659     this.annotation = _annotation;

   660     this.begin = new Model.Time(_mashup.duration);

   661     this.end = new Model.Time(_mashup.duration + _annotation.getDuration());

   662     this.title = this.annotation.title;

   663     this.description = this.annotation.description;

   664     this.color = this.annotation.color;

   665     var _this = this;

   666     this.on("click", function() {

   667         _mashup.setCurrentTime(_this.begin);

   668     });

   669 }

   670 

   671 Model.MashedAnnotation.prototype = new Model.Element(null);

   672 

   673 Model.MashedAnnotation.prototype.getMedia = function() {

   674     return this.annotation.getReference("media");

   675 }

   676 

   677 Model.MashedAnnotation.prototype.getAnnotationType = function() {

   678     return this.annotation.getReference("annotationType");

   679 }

   680 

   681 Model.MashedAnnotation.prototype.getTags = function() {

   682     return this.annotation.getReference("tag");

   683 }

   684 

   685 Model.MashedAnnotation.prototype.getTagTexts = function() {

   686     return this.annotation.getTags().getTitles();

   687 }

   688 

   689 Model.MashedAnnotation.prototype.getDuration = function() {

   690     return this.annotation.getDuration();

   691 }

   692 

   693 /* */

   694 

   695 Model.Mashup = function(_id, _source) {

   696     Model.Playable.call(this, _id, _source);

   697     this.elementType = 'mashup';

   698     this.duration = new Model.Time();

   699     this.segments = new Model.List(_source.directory);

   700     this.medias = new Model.List(_source.directory);

   701     var _currentMedia = null;

   702     var _this = this;

   703     this.on("timeupdate", function(_time) {

   704         _this.getAnnotations().filter(function(_a) {

   705             return (_a.end <= _time || _a.begin > _time) && _a.playing

   706         }).forEach(function(_a) {

   707             _a.playing = false;

   708             _a.trigger("leave");

   709         });

   710         _this.getAnnotations().filter(function(_a) {

   711             return _a.begin <= _time && _a.end > _time && !_a.playing

   712         }).forEach(function(_a) {

   713             _a.playing = true;

   714             _a.trigger("enter");

   715             var _m = _a.getMedia();

   716             if (_m !== _currentMedia) {

   717                 if (_currentMedia) {

   718                     _currentMedia.trigger("leave");

   719                 }

   720                 _m.trigger("enter");

   721                 _currentMedia = _m;

   722             }

   723         });

   724     });

   725 }

   726 

   727 Model.Mashup.prototype = new Model.Playable();

   728 

   729 Model.Mashup.prototype.addSegment = function(_annotation) {

   730     var _mashedAnnotation = new Model.MashedAnnotation(this, _annotation);

   731     this.duration.setMilliseconds(_mashedAnnotation.end);

   732     this.segments.push(_mashedAnnotation);

   733     this.medias.push(_annotation.getMedia());

   734 }

   735 

   736 Model.Mashup.prototype.addSegmentById = function(_elId) {

   737     var _annotation = this.source.getElement(_elId);

   738     if (typeof _annotation !== "undefined") {

   739         this.addSegment(_annotation);

   740     }

   741 }

   742 

   743 Model.Mashup.prototype.getAnnotations = function() {

   744     return this.segments;

   745 }

   746 

   747 Model.Mashup.prototype.getMedias = function() {

   748     return this.medias;

   749 }

   750 

   751 Model.Mashup.prototype.getAnnotationsByTypeTitle = function(_title) {

   752     var _annTypes = this.source.getAnnotationTypes().searchByTitle(_title).pluck("id");

   753     if (_annTypes.length) {

   754         return this.getAnnotations().filter(function(_annotation) {

   755             return ns._(_annTypes).indexOf(_annotation.getAnnotationType().id) !== -1;

   756         });

   757     } else {

   758         return new Model.List(this.source.directory)

   759     }

   760 }

   761 

   762 Model.Mashup.prototype.getAnnotationAtTime = function(_time) {

   763     var _list = this.segments.filter(function(_annotation) {

   764         return _annotation.begin <= _time && _annotation.end > _time;

   765     });

   766     if (_list.length) {

   767         return _list[0];

   768     } else {

   769         return undefined;

   770     }

   771 }

   772 

   773 Model.Mashup.prototype.getMediaAtTime = function(_time) {

   774     var _annotation = this.getAnnotationAtTime(_time);

   775     if (typeof _annotation !== "undefined") {

   776         return _annotation.getMedia();

   777     } else {

   778         return undefined;

   779     }

   780 }

   781 

   782 /* */

   783 

   784 Model.Source = function(_config) {

   785     this.status = Model._SOURCE_STATUS_EMPTY;

   786     this.elementType = "source";

   787     if (typeof _config !== "undefined") {

   788         var _this = this;

   789         ns._(_config).forEach(function(_v, _k) {

   790             _this[_k] = _v;

   791         })

   792         this.callbackQueue = [];

   793         this.contents = {};

   794         this.get();

   795     }

   796 }

   797 

   798 Model.Source.prototype = new Model.Element();

   799 

   800 Model.Source.prototype.addList = function(_listId, _contents) {

   801     if (typeof this.contents[_listId] === "undefined") {

   802         this.contents[_listId] = new Model.List(this.directory);

   803     }

   804     this.contents[_listId].addElements(_contents);

   805 }

   806 

   807 Model.Source.prototype.getList = function(_listId, _global) {

   808     _global = (typeof _global !== "undefined" && _global);

   809     if (_global || typeof this.contents[_listId] === "undefined") {

   810         return this.directory.getGlobalList().filter(function(_e) {

   811             return (_e.elementType === _listId);

   812         });

   813     } else {

   814         return this.contents[_listId];

   815     }

   816 }

   817 

   818 Model.Source.prototype.forEach = function(_callback) {

   819     var _this = this;

   820     ns._(this.contents).forEach(function(_value, _key) {

   821         _callback.call(_this, _value, _key);

   822     })

   823 }

   824 

   825 Model.Source.prototype.getElement = function(_elId) {

   826     return this.directory.getElement(_elId);

   827 }

   828 

   829 Model.Source.prototype.get = function() {

   830     this.status = Model._SOURCE_STATUS_WAITING;

   831     this.handleCallbacks();

   832 }

   833 

   834 /* We defer the callbacks calls so they execute after the queue is cleared */

   835 Model.Source.prototype.deferCallback = function(_callback) {

   836     var _this = this;

   837     ns._.defer(function() {

   838         _callback.call(_this);

   839     });

   840 }

   841 

   842 Model.Source.prototype.handleCallbacks = function() {

   843     this.status = Model._SOURCE_STATUS_READY;

   844     while (this.callbackQueue.length) {

   845         this.deferCallback(this.callbackQueue.splice(0,1)[0]);

   846     }

   847 }

   848 Model.Source.prototype.onLoad = function(_callback) {

   849     if (this.status === Model._SOURCE_STATUS_READY) {

   850         this.deferCallback(_callback);

   851     } else {

   852         this.callbackQueue.push(_callback);

   853     }

   854 }

   855 

   856 Model.Source.prototype.serialize = function() {

   857     return this.serializer.serialize(this);

   858 }

   859 

   860 Model.Source.prototype.deSerialize = function(_data) {

   861     this.serializer.deSerialize(_data, this);

   862 }

   863 

   864 Model.Source.prototype.getAnnotations = function(_global) {

   865     _global = (typeof _global !== "undefined" && _global);

   866     return this.getList("annotation", _global);

   867 }

   868 

   869 Model.Source.prototype.getMedias = function(_global) {

   870     _global = (typeof _global !== "undefined" && _global);

   871     return this.getList("media", _global);

   872 }

   873 

   874 Model.Source.prototype.getTags = function(_global) {

   875     _global = (typeof _global !== "undefined" && _global);

   876     return this.getList("tag", _global);

   877 }

   878 

   879 Model.Source.prototype.getMashups = function(_global) {

   880     _global = (typeof _global !== "undefined" && _global);

   881     return this.getList("mashup", _global);

   882 }

   883 

   884 Model.Source.prototype.getAnnotationTypes = function(_global) {

   885     _global = (typeof _global !== "undefined" && _global);

   886     return this.getList("annotationType", _global);

   887 }

   888 

   889 Model.Source.prototype.getAnnotationsByTypeTitle = function(_title, _global) {

   890     _global = (typeof _global !== "undefined" && _global);

   891     var _res = new Model.List(this.directory),

   892         _annTypes = this.getAnnotationTypes(_global).searchByTitle(_title);

   893     _annTypes.forEach(function(_annType) {

   894         _res.addElements(_annType.getAnnotations(_global));

   895     })

   896     return _res;

   897 }

   898 

   899 Model.Source.prototype.getDuration = function() {

   900     var _m = this.currentMedia;

   901     if (typeof _m !== "undefined") {

   902         return this.currentMedia.duration;

   903     }

   904 }

   905 

   906 Model.Source.prototype.getCurrentMedia = function(_opts) {

   907     if (typeof this.currentMedia === "undefined") {

   908         if (_opts.is_mashup) {

   909             var _mashups = this.getMashups();

   910             if (_mashups.length) {

   911                 this.currentMedia = _mashups[0];

   912             }

   913         } else {

   914             var _medias = this.getMedias();

   915             if (_medias.length) {

   916                 this.currentMedia = _medias[0];

   917             }

   918         }

   919     }

   920     return this.currentMedia;

   921 }

   922 

   923 Model.Source.prototype.merge = function(_source) {

   924     var _this = this;

   925     _source.forEach(function(_value, _key) {

   926         _this.getList(_key).addElements(_value);

   927     });

   928 }

   929 

   930 /* */

   931 

   932 Model.RemoteSource = function(_config) {

   933     Model.Source.call(this, _config);

   934 }

   935 

   936 Model.RemoteSource.prototype = new Model.Source();

   937 

   938 Model.RemoteSource.prototype.get = function() {

   939     this.status = Model._SOURCE_STATUS_WAITING;

   940     var _this = this;

   941     this.serializer.loadData(this.url, function(_result) {

   942         _this.deSerialize(_result);

   943         _this.handleCallbacks();

   944     });

   945 }

   946 

   947 /* */

   948 

   949 Model.Directory = function() {

   950     this.remoteSources = {};

   951     this.elements = {};

   952 }

   953 

   954 Model.Directory.prototype.remoteSource = function(_properties) {

   955     if (typeof _properties !== "object" || typeof _properties.url === "undefined") {

   956         throw "Error : Model.Directory.remoteSource(configuration): configuration.url is undefined";

   957     }

   958     var _config = ns._({ directory: this }).extend(_properties);

   959     if (typeof this.remoteSources[_properties.url] === "undefined") {

   960         this.remoteSources[_properties.url] = new Model.RemoteSource(_config);

   961     }

   962     return this.remoteSources[_properties.url];

   963 }

   964 

   965 Model.Directory.prototype.newLocalSource = function(_properties) {

   966     var _config = ns._({ directory: this }).extend(_properties),

   967         _res = new Model.Source(_config);

   968     return _res;

   969 }

   970 

   971 Model.Directory.prototype.getElement = function(_id) {

   972     return this.elements[_id];

   973 }

   974 

   975 Model.Directory.prototype.addElement = function(_element) {

   976     this.elements[_element.id] = _element;

   977 }

   978 

   979 Model.Directory.prototype.getGlobalList = function() {

   980     var _res = new Model.List(this);

   981     _res.addIds(ns._(this.elements).keys());

   982     return _res;

   983 }

   984 

   985 ns.Model = Model;

   986 

   987 })(IriSP);