diff -r 27b248a13355 -r 8a6c9e3d0158 src/js/model.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/js/model.js	Thu Aug 30 13:16:33 2012 +0200
@@ -0,0 +1,833 @@
+/* TODO: Separate Project-specific data from Source */
+
+/* model.js is where data is stored in a standard form, whatever the serializer */
+
+IriSP.Model = {
+    _SOURCE_STATUS_EMPTY : 0,
+    _SOURCE_STATUS_WAITING : 1,
+    _SOURCE_STATUS_READY : 2,
+    _ID_AUTO_INCREMENT : 0,
+    _ID_BASE : (function(_d) {
+        function pad(n){return n<10 ? '0'+n : n}
+        function fillrand(n) {
+            var _res = ''
+            for (var i=0; i<n; i++) {
+                _res += Math.floor(16*Math.random()).toString(16);
+            }
+            return _res;
+        }
+        return _d.getUTCFullYear() + '-'  
+            + pad(_d.getUTCMonth()+1) + '-'  
+            + pad(_d.getUTCDate()) + '-'
+            + fillrand(16);
+    })(new Date()),
+    getUID : function() {
+        var _n = (++this._ID_AUTO_INCREMENT).toString();
+        while (_n.length < 4) {
+            _n = '0' + _n
+        }
+        return "autoid-" + this._ID_BASE + '-' + _n;
+    },
+    regexpFromTextOrArray : function(_textOrArray, _testOnly) {
+        var _testOnly = _testOnly || false;
+        function escapeText(_text) {
+            return _text.replace(/([\\\*\+\?\|\{\[\}\]\(\)\^\$\.\#\/])/gm, '\\$1');
+        }
+        var _source = 
+            typeof _textOrArray === "string"
+            ? escapeText(_textOrArray)
+            : IriSP._(_textOrArray).map(escapeText).join("|");
+        if (_testOnly) {
+            return new RegExp( _source, 'im');
+        } else {
+            return new RegExp( '(' + _source + ')', 'gim');
+        }
+    },
+    isoToDate : function(_str) {
+        // http://delete.me.uk/2005/03/iso8601.html
+        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})))?)?)?)?";
+        var d = _str.match(new RegExp(regexp));
+    
+        var offset = 0;
+        var date = new Date(d[1], 0, 1);
+    
+        if (d[3]) { date.setMonth(d[3] - 1); }
+        if (d[5]) { date.setDate(d[5]); }
+        if (d[7]) { date.setHours(d[7]); }
+        if (d[8]) { date.setMinutes(d[8]); }
+        if (d[10]) { date.setSeconds(d[10]); }
+        if (d[12]) { date.setMilliseconds(Number("0." + d[12]) * 1000); }
+        if (d[14]) {
+            offset = (Number(d[16]) * 60) + Number(d[17]);
+            offset *= ((d[15] == '-') ? 1 : -1);
+        }
+    
+        offset -= date.getTimezoneOffset();
+        time = (Number(date) + (offset * 60 * 1000));
+        var _res = new Date();
+        _res.setTime(Number(time));
+        return _res;
+    },
+    dateToIso : function(d) {
+        function pad(n){return n<10 ? '0'+n : n}  
+        return d.getUTCFullYear()+'-'  
+            + pad(d.getUTCMonth()+1)+'-'  
+            + pad(d.getUTCDate())+'T'  
+            + pad(d.getUTCHours())+':'  
+            + pad(d.getUTCMinutes())+':'  
+            + pad(d.getUTCSeconds())+'Z'  
+    }
+}
+
+/*
+ * IriSP.Model.List is a class for a list of elements (e.g. annotations, medias, etc. that each have a distinct ID)
+ */
+IriSP.Model.List = function(_directory) {
+    Array.call(this);
+    this.directory = _directory;
+    this.idIndex = [];
+    this.__events = {};
+    if (typeof _directory == "undefined") {
+        console.trace();
+        throw "Error : new IriSP.Model.List(directory): directory is undefined";
+    }
+}
+
+IriSP.Model.List.prototype = new Array();
+
+IriSP.Model.List.prototype.hasId = function(_id) {
+    return IriSP._(this.idIndex).include(_id);
+}
+
+/* On recent browsers, forEach and map are defined and do what we want.
+ * Otherwise, we'll use the Underscore.js functions
+ */
+if (typeof Array.prototype.forEach === "undefined") {
+    IriSP.Model.List.prototype.forEach = function(_callback) {
+        var _this = this;
+        IriSP._(this).forEach(function(_value, _key) {
+            _callback(_value, _key, _this);
+        });
+    }
+}
+
+if (typeof Array.prototype.map === "undefined") {
+    IriSP.Model.List.prototype.map = function(_callback) {
+        var _this = this;
+        return IriSP._(this).map(function(_value, _key) {
+            return _callback(_value, _key, _this);
+        });
+    }
+}
+
+IriSP.Model.List.prototype.pluck = function(_key) {
+    return this.map(function(_value) {
+        return _value[_key];
+    });
+}
+
+/* We override Array's filter function because it doesn't return an IriSP.Model.List
+ */
+IriSP.Model.List.prototype.filter = function(_callback) {
+    var _this = this,
+        _res = new IriSP.Model.List(this.directory);
+    _res.addElements(IriSP._(this).filter(function(_value, _key) {
+        return _callback(_value, _key, _this);
+    }));
+    return _res;
+}
+
+IriSP.Model.List.prototype.slice = function(_start, _end) {
+    var _res = new IriSP.Model.List(this.directory);
+    _res.addElements(Array.prototype.slice.call(this, _start, _end));
+    return _res;
+}
+
+IriSP.Model.List.prototype.splice = function(_start, _end) {
+    var _res = new IriSP.Model.List(this.directory);
+    _res.addElements(Array.prototype.splice.call(this, _start, _end));
+    this.idIndex.splice(_start, _end);
+    return _res;
+}
+
+/* Array has a sort function, but it's not as interesting as Underscore.js's sortBy
+ * and won't return a new IriSP.Model.List
+ */
+IriSP.Model.List.prototype.sortBy = function(_callback) {
+    var _this = this,
+        _res = new IriSP.Model.List(this.directory);
+    _res.addElements(IriSP._(this).sortBy(function(_value, _key) {
+        return _callback(_value, _key, _this);
+    }));
+    return _res;
+}
+
+/* Title and Description are basic information for (almost) all element types,
+ * here we can search by these criteria
+ */
+IriSP.Model.List.prototype.searchByTitle = function(_text) {
+    var _rgxp = IriSP.Model.regexpFromTextOrArray(_text, true);
+    return this.filter(function(_element) {
+        return _rgxp.test(_element.title);
+    });
+}
+
+IriSP.Model.List.prototype.searchByDescription = function(_text) {
+    var _rgxp = IriSP.Model.regexpFromTextOrArray(_text, true);
+    return this.filter(function(_element) {
+        return _rgxp.test(_element.description);
+    });
+}
+
+IriSP.Model.List.prototype.searchByTextFields = function(_text) {
+    var _rgxp =  IriSP.Model.regexpFromTextOrArray(_text, true);
+    return this.filter(function(_element) {
+        return _rgxp.test(_element.description) || _rgxp.test(_element.title);
+    });
+}
+
+IriSP.Model.List.prototype.getTitles = function() {
+    return this.map(function(_el) {
+        return _el.title;
+    });
+}
+
+IriSP.Model.List.prototype.addId = function(_id) {
+    var _el = this.directory.getElement(_id)
+    if (!this.hasId(_id) && typeof _el !== "undefined") {
+        this.idIndex.push(_id);
+        Array.prototype.push.call(this, _el);
+    }
+}
+
+IriSP.Model.List.prototype.push = function(_el) {
+    if (typeof _el === "undefined") {
+        return;
+    }
+    var _index = (IriSP._(this.idIndex).indexOf(_el.id));
+    if (_index === -1) {
+        this.idIndex.push(_el.id);
+        Array.prototype.push.call(this, _el);
+    } else {
+        this[_index] = _el;
+    }
+}
+
+IriSP.Model.List.prototype.addIds = function(_array) {
+    var _l = _array.length,
+        _this = this;
+    IriSP._(_array).forEach(function(_id) {
+        _this.addId(_id);
+    });
+}
+
+IriSP.Model.List.prototype.addElements = function(_array) {
+    var _this = this;
+    IriSP._(_array).forEach(function(_el) {
+        _this.push(_el);
+    });
+}
+
+IriSP.Model.List.prototype.removeId = function(_id, _deleteFromDirectory) {
+    var _deleteFromDirectory = _deleteFromDirectory || false,
+        _index = (IriSP._(this.idIndex).indexOf(_id));
+    if (_index !== -1) {
+        this.splice(_index,1);
+    }
+    if (_deleteFromDirectory) {
+        delete this.directory.elements[_id];
+    }
+}
+
+IriSP.Model.List.prototype.removeElement = function(_el, _deleteFromDirectory) {
+    var _deleteFromDirectory = _deleteFromDirectory || false;
+    this.removeId(_el.id);
+}
+
+IriSP.Model.List.prototype.removeIds = function(_list, _deleteFromDirectory) {
+    var _deleteFromDirectory = _deleteFromDirectory || false,
+        _this = this;
+    IriSP._(_list).forEach(function(_id) {
+        _this.removeId(_id);
+    });
+}
+
+IriSP.Model.List.prototype.removeElements = function(_list, _deleteFromDirectory) {
+    var _deleteFromDirectory = _deleteFromDirectory || false,
+        _this = this;
+    IriSP._(_list).forEach(function(_el) {
+        _this.removeElement(_el);
+    });
+}
+
+IriSP.Model.List.prototype.on = function(_event, _callback) {
+    if (typeof this.__events[_event] === "undefined") {
+        this.__events[_event] = [];
+    }
+    this.__events[_event].push(_callback);
+}
+
+IriSP.Model.List.prototype.trigger = function(_event, _data) {
+    var _list = this;
+    IriSP._(this.__events[_event]).each(function(_callback) {
+        _callback.call(_list, _data);
+    });
+}
+
+/* A simple time management object, that helps converting millisecs to seconds and strings,
+ * without the clumsiness of the original Date object.
+ */
+
+IriSP.Model.Time = function(_milliseconds) {
+    this.milliseconds = 0;
+    this.setMilliseconds(_milliseconds);
+}
+
+IriSP.Model.Time.prototype.setMilliseconds = function(_milliseconds) {
+    var _ante = _milliseconds;
+    switch(typeof _milliseconds) {
+        case "string":
+            this.milliseconds = parseFloat(_milliseconds);
+            break;
+        case "number":
+            this.milliseconds = _milliseconds;
+            break;
+        case "object":
+            this.milliseconds = parseFloat(_milliseconds.valueOf());
+            break;
+        default:
+            this.milliseconds = 0;
+    }
+    if (this.milliseconds === NaN) {
+        this.milliseconds = _ante;
+    }
+}
+
+IriSP.Model.Time.prototype.setSeconds = function(_seconds) {
+    this.milliseconds = 1000 * _seconds;
+}
+
+IriSP.Model.Time.prototype.getSeconds = function() {
+    return this.milliseconds / 1000;
+}
+
+IriSP.Model.Time.prototype.getHMS = function() {
+    var _totalSeconds = Math.abs(Math.floor(this.getSeconds()));
+    return {
+        hours : Math.floor(_totalSeconds / 3600),
+        minutes : (Math.floor(_totalSeconds / 60) % 60),
+        seconds : _totalSeconds % 60
+    } 
+}
+
+IriSP.Model.Time.prototype.add = function(_milliseconds) {
+    this.milliseconds += new IriSP.Model.Time(_milliseconds).milliseconds;
+}
+
+IriSP.Model.Time.prototype.valueOf = function() {
+    return this.milliseconds;
+}
+
+IriSP.Model.Time.prototype.toString = function() {
+    function pad(_n) {
+        var _res = _n.toString();
+        while (_res.length < 2) {
+            _res = '0' + _res;
+        }
+        return _res;
+    }
+    var _hms = this.getHMS(),
+        _res = '';
+    if (_hms.hours) {
+        _res += pad(_hms.hours) + ':'
+    }
+    _res += pad(_hms.minutes) + ':' + pad(_hms.seconds);
+    return _res;
+}
+
+/* IriSP.Model.Reference handles references between elements
+ */
+
+IriSP.Model.Reference = function(_source, _idRef) {
+    this.source = _source;
+    this.id = _idRef;
+    if (typeof _idRef === "object") {
+        this.isList = true;
+    } else {
+        this.isList = false;
+    }
+    this.refresh();
+}
+
+IriSP.Model.Reference.prototype.refresh = function() {
+    if (this.isList) {
+        this.contents = new IriSP.Model.List(this.source.directory);
+        this.contents.addIds(this.id);
+    } else {
+        this.contents = this.source.directory.getElement(this.id);
+    }
+    
+}
+
+IriSP.Model.Reference.prototype.getContents = function() {
+    if (typeof this.contents === "undefined" || (this.isList && this.contents.length != this.id.length)) {
+        this.refresh();
+    }
+    return this.contents;
+}
+
+IriSP.Model.Reference.prototype.isOrHasId = function(_idRef) {
+    if (this.isList) {
+        return (IriSP._(this.id).indexOf(_idRef) !== -1)
+    } else {
+        return (this.id == _idRef);
+    }
+}
+
+/* */
+
+IriSP.Model.Element = function(_id, _source) {
+    this.elementType = 'element';
+    if (typeof _source === "undefined") {
+        return;
+    }
+    if (typeof _id === "undefined" || !_id) {
+        _id = IriSP.Model.getUID();
+    }
+    this.source = _source;
+    this.id = _id;
+    this.title = "";
+    this.description = "";
+    this.__events = {}
+    this.source.directory.addElement(this);
+}
+
+IriSP.Model.Element.prototype.toString = function() {
+    return this.elementType + (this.elementType !== 'element' ? ', id=' + this.id + ', title="' + this.title + '"' : '');
+}
+
+IriSP.Model.Element.prototype.setReference = function(_elementType, _idRef) {
+    this[_elementType] = new IriSP.Model.Reference(this.source, _idRef);
+}
+
+IriSP.Model.Element.prototype.getReference = function(_elementType) {
+    if (typeof this[_elementType] !== "undefined") {
+        return this[_elementType].getContents();
+    }
+}
+
+IriSP.Model.Element.prototype.getRelated = function(_elementType, _global) {
+    _global = (typeof _global !== "undefined" && _global);
+    var _this = this;
+    return this.source.getList(_elementType, _global).filter(function(_el) {
+        var _ref = _el[_this.elementType];
+        return _ref.isOrHasId(_this.id);
+    });
+}
+
+IriSP.Model.Element.prototype.on = function(_event, _callback) {
+    if (typeof this.__events[_event] === "undefined") {
+        this.__events[_event] = [];
+    }
+    this.__events[_event].push(_callback);
+}
+
+IriSP.Model.Element.prototype.trigger = function(_event, _data) {
+    var _element = this;
+    IriSP._(this.__events[_event]).each(function(_callback) {
+        _callback.call(_element, _data);
+    });
+}
+
+/* */
+
+IriSP.Model.Media = function(_id, _source) {
+    IriSP.Model.Element.call(this, _id, _source);
+    this.elementType = 'media';
+    this.duration = new IriSP.Model.Time();
+    this.video = '';
+}
+
+IriSP.Model.Media.prototype = new IriSP.Model.Element();
+
+IriSP.Model.Media.prototype.setDuration = function(_durationMs) {
+    this.duration.setMilliseconds(_durationMs);
+}
+
+IriSP.Model.Media.prototype.getAnnotations = function() {
+    return this.getRelated("annotation");
+}
+
+IriSP.Model.Media.prototype.getAnnotationsByTypeTitle = function(_title) {
+    var _annTypes = this.source.getAnnotationTypes().searchByTitle(_title).pluck("id");
+    if (_annTypes.length) {
+        return this.getAnnotations().filter(function(_annotation) {
+            return IriSP._(_annTypes).indexOf(_annotation.getAnnotationType().id) !== -1;
+        });
+    } else {
+        return new IriSP.Model.List(this.source.directory)
+    }
+}
+
+/* */
+
+IriSP.Model.Tag = function(_id, _source) {
+    IriSP.Model.Element.call(this, _id, _source);
+    this.elementType = 'tag';
+}
+
+IriSP.Model.Tag.prototype = new IriSP.Model.Element();
+
+IriSP.Model.Tag.prototype.getAnnotations = function() {
+    return this.getRelated("annotation");
+}
+
+/* */
+
+IriSP.Model.AnnotationType = function(_id, _source) {
+    IriSP.Model.Element.call(this, _id, _source);
+    this.elementType = 'annotationType';
+}
+
+IriSP.Model.AnnotationType.prototype = new IriSP.Model.Element();
+
+IriSP.Model.AnnotationType.prototype.getAnnotations = function() {
+    return this.getRelated("annotation");
+}
+
+/* Annotation
+ * */
+
+IriSP.Model.Annotation = function(_id, _source) {
+    IriSP.Model.Element.call(this, _id, _source);
+    this.elementType = 'annotation';
+    this.begin = new IriSP.Model.Time();
+    this.end = new IriSP.Model.Time();
+}
+
+IriSP.Model.Annotation.prototype = new IriSP.Model.Element(null);
+
+IriSP.Model.Annotation.prototype.setBegin = function(_beginMs) {
+    this.begin.setMilliseconds(_beginMs);
+}
+
+IriSP.Model.Annotation.prototype.setEnd = function(_beginMs) {
+    this.end.setMilliseconds(_beginMs);
+}
+
+IriSP.Model.Annotation.prototype.setMedia = function(_idRef) {
+    this.setReference("media", _idRef);
+}
+
+IriSP.Model.Annotation.prototype.getMedia = function() {
+    return this.getReference("media");
+}
+
+IriSP.Model.Annotation.prototype.setAnnotationType = function(_idRef) {
+    this.setReference("annotationType", _idRef);
+}
+
+IriSP.Model.Annotation.prototype.getAnnotationType = function() {
+    return this.getReference("annotationType");
+}
+
+IriSP.Model.Annotation.prototype.setTags = function(_idRefs) {
+    this.setReference("tag", _idRefs);
+}
+
+IriSP.Model.Annotation.prototype.getTags = function() {
+    return this.getReference("tag");
+}
+
+IriSP.Model.Annotation.prototype.getTagTexts = function() {
+    return this.getTags().getTitles();
+}
+
+IriSP.Model.Annotation.prototype.getDuration = function() {
+    return new IriSP.Model.Time(this.end.milliseconds - this.begin.milliseconds)
+}
+
+/* */
+
+IriSP.Model.MashedAnnotation = function(_mashup, _annotation) {
+    IriSP.Model.Element.call(this, _mashup.id + "_" + _annotation.id, _annotation.source);
+    this.elementType = 'mashedAnnotation';
+    this.annotation = _annotation;
+    this.begin = new IriSP.Model.Time(_mashup.duration);
+    this.end = new IriSP.Model.Time(_mashup.duration + _annotation.getDuration());
+    this.title = this.annotation.title;
+    this.description = this.annotation.description;
+    this.color = this.annotation.color;
+}
+
+IriSP.Model.MashedAnnotation.prototype = new IriSP.Model.Element(null);
+
+IriSP.Model.MashedAnnotation.prototype.getMedia = function() {
+    return this.annotation.getReference("media");
+}
+
+IriSP.Model.MashedAnnotation.prototype.getAnnotationType = function() {
+    return this.annotation.getReference("annotationType");
+}
+
+IriSP.Model.MashedAnnotation.prototype.getTags = function() {
+    return this.annotation.getReference("tag");
+}
+
+IriSP.Model.MashedAnnotation.prototype.getTagTexts = function() {
+    return this.annotation.getTags().getTitles();
+}
+
+IriSP.Model.MashedAnnotation.prototype.getDuration = function() {
+    return this.annotation.getDuration();
+}
+
+/* */
+
+IriSP.Model.Mashup = function(_id, _source) {
+    IriSP.Model.Element.call(this, _id, _source);
+    this.elementType = 'mashup';
+    this.duration = new IriSP.Model.Time();
+    this.segments = new IriSP.Model.List(_source.directory);
+    this.medias = new IriSP.Model.List(_source.directory);
+}
+
+IriSP.Model.Mashup.prototype = new IriSP.Model.Element();
+
+IriSP.Model.Mashup.prototype.addSegment = function(_annotation) {
+    var _mashedAnnotation = new IriSP.Model.MashedAnnotation(this, _annotation);
+    this.duration.setMilliseconds(_mashedAnnotation.end);
+    this.segments.push(_mashedAnnotation);
+    this.medias.push(_annotation.getMedia());
+}
+
+IriSP.Model.Mashup.prototype.addSegmentById = function(_elId) {
+    var _annotation = this.source.getElement(_elId);
+    if (typeof _annotation !== "undefined") {
+        this.addSegment(_annotation);
+    }
+}
+
+IriSP.Model.Mashup.prototype.getAnnotations = function() {
+    return this.segments;
+}
+
+IriSP.Model.Mashup.prototype.getMedias = function() {
+    return this.medias;
+}
+
+IriSP.Model.Mashup.prototype.getAnnotationsByTypeTitle = function(_title) {
+    var _annTypes = this.source.getAnnotationTypes().searchByTitle(_title).pluck("id");
+    if (_annTypes.length) {
+        return this.getAnnotations().filter(function(_annotation) {
+            return IriSP._(_annTypes).indexOf(_annotation.getAnnotationType().id) !== -1;
+        });
+    } else {
+        return new IriSP.Model.List(this.source.directory)
+    }
+}
+
+IriSP.Model.Mashup.prototype.getAnnotationAtTime = function(_time) {
+    var _list = this.segments.filter(function(_annotation) {
+        return _annotation.begin <= _time && _annotation.end > _time;
+    });
+    if (_list.length) {
+        return _list[0];
+    } else {
+        return undefined;
+    }
+}
+
+IriSP.Model.Mashup.prototype.getMediaAtTime = function(_time) {
+    var _annotation = this.getAnnotationAtTime(_time);
+    if (typeof _annotation !== "undefined") {
+        return _annotation.getMedia();
+    } else {
+        return undefined;
+    }
+}
+
+/* */
+
+IriSP.Model.Source = function(_config) {
+    this.status = IriSP.Model._SOURCE_STATUS_EMPTY;
+    if (typeof _config !== "undefined") {
+        var _this = this;
+        IriSP._(_config).forEach(function(_v, _k) {
+            _this[_k] = _v;
+        })
+        this.callbackQueue = [];
+        this.contents = {};
+        this.get();
+    }
+}
+
+IriSP.Model.Source.prototype.addList = function(_listId, _contents) {
+    if (typeof this.contents[_listId] === "undefined") {
+        this.contents[_listId] = new IriSP.Model.List(this.directory);
+    }
+    this.contents[_listId].addElements(_contents);
+}
+
+IriSP.Model.Source.prototype.getList = function(_listId, _global) {
+    _global = (typeof _global !== "undefined" && _global);
+    if (_global || typeof this.contents[_listId] === "undefined") {
+        return this.directory.getGlobalList().filter(function(_e) {
+            return (_e.elementType === _listId);
+        });
+    } else {
+        return this.contents[_listId];
+    }
+}
+
+IriSP.Model.Source.prototype.forEach = function(_callback) {
+    var _this = this;
+    IriSP._(this.contents).forEach(function(_value, _key) {
+        _callback.call(_this, _value, _key);
+    })
+}
+
+IriSP.Model.Source.prototype.getElement = function(_elId) {
+    return this.directory.getElement(_elId);
+}
+
+IriSP.Model.Source.prototype.get = function() {
+    this.status = IriSP.Model._SOURCE_STATUS_WAITING;
+    this.handleCallbacks();
+}
+
+/* We defer the callbacks calls so they execute after the queue is cleared */
+IriSP.Model.Source.prototype.deferCallback = function(_callback) {
+    var _this = this;
+    IriSP._.defer(function() {
+        _callback.call(_this);
+    });
+}
+
+IriSP.Model.Source.prototype.handleCallbacks = function() {
+    this.status = IriSP.Model._SOURCE_STATUS_READY;
+    while (this.callbackQueue.length) {
+        this.deferCallback(this.callbackQueue.splice(0,1)[0]);
+    }
+}
+IriSP.Model.Source.prototype.onLoad = function(_callback) {
+    if (this.status === IriSP.Model._SOURCE_STATUS_READY) {
+        this.deferCallback(_callback);
+    } else {
+        this.callbackQueue.push(_callback);
+    }
+}
+
+IriSP.Model.Source.prototype.serialize = function() {
+    return this.serializer.serialize(this);
+}
+
+IriSP.Model.Source.prototype.deSerialize = function(_data) {
+    this.serializer.deSerialize(_data, this);
+}
+
+IriSP.Model.Source.prototype.getAnnotations = function(_global) {
+    _global = (typeof _global !== "undefined" && _global);
+    return this.getList("annotation", _global);
+}
+
+IriSP.Model.Source.prototype.getMedias = function(_global) {
+    _global = (typeof _global !== "undefined" && _global);
+    return this.getList("media", _global);
+}
+
+IriSP.Model.Source.prototype.getTags = function(_global) {
+    _global = (typeof _global !== "undefined" && _global);
+    return this.getList("tag", _global);
+}
+
+IriSP.Model.Source.prototype.getMashups = function(_global) {
+    _global = (typeof _global !== "undefined" && _global);
+    return this.getList("mashup", _global);
+}
+
+IriSP.Model.Source.prototype.getAnnotationTypes = function(_global) {
+    _global = (typeof _global !== "undefined" && _global);
+    return this.getList("annotationType", _global);
+}
+
+IriSP.Model.Source.prototype.getAnnotationsByTypeTitle = function(_title, _global) {
+    _global = (typeof _global !== "undefined" && _global);
+    var _res = new IriSP.Model.List(this.directory),
+        _annTypes = this.getAnnotationTypes(_global).searchByTitle(_title);
+    _annTypes.forEach(function(_annType) {
+        _res.addElements(_annType.getAnnotations(_global));
+    })
+    return _res;
+}
+
+IriSP.Model.Source.prototype.getDuration = function() {
+    var _m = this.currentMedia;
+    if (typeof _m !== "undefined") {
+        return this.currentMedia.duration;
+    }
+}
+
+IriSP.Model.Source.prototype.merge = function(_source) {
+    var _this = this;
+    _source.forEach(function(_value, _key) {
+        _this.getList(_key).addElements(_value);
+    });
+}
+
+/* */
+
+IriSP.Model.RemoteSource = function(_config) {
+    IriSP.Model.Source.call(this, _config);
+}
+
+IriSP.Model.RemoteSource.prototype = new IriSP.Model.Source();
+
+IriSP.Model.RemoteSource.prototype.get = function() {
+    this.status = IriSP.Model._SOURCE_STATUS_WAITING;
+    var _this = this;
+    this.serializer.loadData(this.url, function(_result) {
+        _this.deSerialize(_result);
+        _this.handleCallbacks();
+    });
+}
+
+/* */
+
+IriSP.Model.Directory = function() {
+    this.remoteSources = {};
+    this.elements = {};
+}
+
+IriSP.Model.Directory.prototype.remoteSource = function(_properties) {
+    if (typeof _properties !== "object" || typeof _properties.url === "undefined") {
+        throw "Error : IriSP.Model.Directory.remoteSource(configuration): configuration.url is undefined";
+    }
+    var _config = IriSP._({ directory: this }).extend(_properties);
+    if (typeof this.remoteSources[_properties.url] === "undefined") {
+        this.remoteSources[_properties.url] = new IriSP.Model.RemoteSource(_config);
+    }
+    return this.remoteSources[_properties.url];
+}
+
+IriSP.Model.Directory.prototype.newLocalSource = function(_properties) {
+    var _config = IriSP._({ directory: this }).extend(_properties),
+        _res = new IriSP.Model.Source(_config);
+    return _res;
+}
+
+IriSP.Model.Directory.prototype.getElement = function(_id) {
+    return this.elements[_id];
+}
+
+IriSP.Model.Directory.prototype.addElement = function(_element) {
+    this.elements[_element.id] = _element;
+}
+
+IriSP.Model.Directory.prototype.getGlobalList = function() {
+    var _res = new IriSP.Model.List(this);
+    _res.addIds(IriSP._(this.elements).keys());
+    return _res;
+}
+
+/* */