IriSP.SegmentsWidget = function(Popcorn, config, Serializer) {

  var self = this;

  IriSP.Widget.call(this, Popcorn, config, Serializer);

  this.oldSearchMatches = [];

  // event handlers

  this._Popcorn.listen("IriSP.search", function(searchString) { self.searchHandler.call(self, searchString); });

  this._Popcorn.listen("IriSP.search.closed", function() { self.searchFieldClosedHandler.call(self); });

  this._Popcorn.listen("IriSP.search.cleared", function() { self.searchFieldClearedHandler.call(self); });

};

IriSP.SegmentsWidget.prototype = new IriSP.Widget();

IriSP.SegmentsWidget.prototype.draw = function() {

  var self = this;

  var annotations = this._serializer._data.annotations;

  /* in case we have different types of annotations, we want to display only the first type */

  /* the next two lines are a bit verbose because for some test data, _serializer.data.view is either

     null or undefined.

  */

  var view;

  if (typeof(this._serializer._data.views) !== "undefined" && this._serializer._data.views !== null)

     view = this._serializer._data.views[0];

  var view_type = "";

  if(typeof(view) !== "undefined" && typeof(view.annotation_types) !== "undefined" && view.annotation_types.length > 1) {

          view_type = view.annotation_types[0];

  }

  this.selector.css("overflow", "auto"); // clear the floats - FIXME : to refactor ?

  this.selector.append(Mustache.to_html(IriSP.overlay_marker_template));

  this.positionMarker = this.selector.children(":first");

  this._Popcorn.listen("timeupdate", IriSP.wrap(this, this.positionUpdater));

  this.selector.after("<div class='cleaner'></div>"); // we need to do this because the segments are floated                                                      

  var i = 0;

  var totalWidth = this.selector.width();

  var onePxPercent = 100 / totalWidth; /* the value of a pixel, in percents */

  for (i = 0; i < annotations.length; i++) {

    var annotation = annotations[i];

    /* filter the annotations whose type is not the one we want */

    if (view_type != "" && typeof(annotation.meta) !== "undefined" && typeof(annotation.meta["id-ref"]) !== "undefined"

          && annotation.meta["id-ref"] != view_type) {

        continue;

    }

    var begin = Math.round((+ annotation.begin) / 1000);

    var end = Math.round((+ annotation.end) / 1000);

    var duration = this._serializer.currentMedia().meta["dc:duration"] / 1000;

    var id = annotation.id;

    var startPourcent 	= IriSP.timeToPourcent(begin, duration);

    /* some sort of collapsing occurs, so we only have to substract one pixel to each box instead of

       two

    */

    var endPourcent 	= IriSP.timeToPourcent(end, duration) - startPourcent - onePxPercent * 1;

    /* on the other hand, we have to substract one pixel from the first box because it's the only

       one to have to effective 1px margins */

    if (i == 0) {

      endPourcent -= onePxPercent;

    }

    var divTitle = annotation.content.title.substr(0,55);

    var color = annotation.content.color

    var annotationTemplate = Mustache.to_html(IriSP.annotation_template,

        {"divTitle" : divTitle, "id" : id, "startPourcent" : startPourcent,

        "endPourcent" : endPourcent, "hexa_color" : IriSP.DEC_HEXA_COLOR(color),

        "seekPlace" : Math.round(begin/1000)});

    var toolTipTemplate = Mustache.to_html(IriSP.tooltip_template,

          {"title" : divTitle, "begin" : begin, "end" : end,

          "description": annotation.content.description});

    this.selector.append(annotationTemplate);

    IriSP.jQuery("#" + id).tooltip({ effect: 'slide'});

    IriSP.jQuery("#" + id).fadeTo(0, 0.3);

    IriSP.jQuery("#" + id).mouseover(function() {

      IriSP.jQuery("#" + id).animate({opacity: 0.6}, 5);

    }).mouseout(function(){

      IriSP.jQuery("#" + id).animate({opacity: 0.3}, 5);

    });

    IriSP.jQuery("#" + id).click(function(_this, annotation) {

                                    return function() { _this.clickHandler(annotation)};

                                 }(this, annotation));

  }

};

/* restores the view after a search */

IriSP.SegmentsWidget.prototype.clear = function() {

  // reinit the fields

  for (var id in this.oldSearchMatches) {

      IriSP.jQuery("#"+id).dequeue();

			IriSP.jQuery("#"+id).animate({height:0}, 100);

			IriSP.jQuery("#"+id).css('border-color','lightgray');

			IriSP.jQuery("#"+id).animate({opacity:0.3}, 100);

  }

};

IriSP.SegmentsWidget.prototype.clickHandler = function(annotation) {

  var begin = (+ annotation.begin) / 1000;

  this._Popcorn.currentTime(Math.floor(begin));

};

IriSP.SegmentsWidget.prototype.searchHandler = function(searchString) {

  if (searchString == "")

    return;

  var matches = this._serializer.searchOccurences(searchString);

  for (var id in matches) {

    var factor = matches[id] * 8;

    this.selector.find("#"+id).dequeue();

    this.selector.find("#"+id).animate({height: factor}, 200);    

    this.selector.find("#"+id).css('border-color','red');

    this.selector.find("#"+id).animate({opacity:0.6}, 200);

    IriSP.jQuery("#LdtSearchInput").css('background-color','#e1ffe1');

  }

  // clean up the blocks that were in the previous search

  // but who aren't in the current one.

  for (var id in this.oldSearchMatches) {

    if (!matches.hasOwnProperty(id)) {

        IriSP.jQuery("#"+id).dequeue();

				IriSP.jQuery("#"+id).animate({height:0}, 250);				

				IriSP.jQuery("#"+id).animate({opacity:0.3}, 200);

        this.selector.find("#"+id).css('border','solid 1px #aaaaaa');

    }

  }

  this.oldSearchMatches = matches;

};

IriSP.SegmentsWidget.prototype.searchFieldClearedHandler = function() {

  this.clear();

};

IriSP.SegmentsWidget.prototype.searchFieldClosedHandler = function() {

  this.clear();

};

IriSP.SegmentsWidget.prototype.positionUpdater = function() {  

  var duration = this._serializer.currentMedia().meta["dc:duration"] / 1000;

  var time = this._Popcorn.currentTime();

  var position 	= ((time / duration) * 100).toFixed(2);

  this.positionMarker.css("left", position + "%");  

};