src/widgets/AnnotationsList.js
author veltr
Mon, 23 Apr 2012 19:11:08 +0200
branchnew-model
changeset 875 43629caa77bc
parent 874 src/js/widgets/annotationsListWidget.js@38b65761a7d5
child 876 03967b6ada7c
permissions -rw-r--r--
Big refactoring of widget files + started migration of segmentwidget
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IriSP.Widgets.AnnotationsList = function(player, config) {
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    IriSP.Widgets.Widget.call(this, player, config);
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    this.bindPopcorn("IriSP.search", "searchHandler");
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    this.bindPopcorn("IriSP.search.closed", "searchHandler");
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    this.bindPopcorn("IriSP.search.cleared", "searchHandler");
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    this.searchString = false;
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    this.lastIds = [];
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    var _this = this;
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    this.throttledRefresh = IriSP._.throttle(function() {
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        _this.refresh(false);
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    }, 1500);
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};
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IriSP.Widgets.AnnotationsList.prototype = new IriSP.Widgets.Widget();
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IriSP.Widgets.AnnotationsList.prototype.defaults = {
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    /* URL when the annotations are to be reloaded from an LDT-like segment API
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     * e.g. http://ldt.iri.centrepompidou.fr/ldtplatform/api/ldt/segments/{{media}}/{{begin}}/{{end}}?callback=?
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     */
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    ajax_url : false,
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    /* how much ms should we look before and after the current timecode in the segment API
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     */
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    ajax_granularity : 300000, 
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    default_thumbnail : "http://ldt.iri.centrepompidou.fr/static/site/ldt/css/imgs/video_sequence.png",
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    /* URL when the annotation is not in the current project,
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     * e.g. http://ldt.iri.centrepompidou.fr/ldtplatform/ldt/front/player/{{media}}/{{project}}/{{annotationType}}#id={{annotation}}
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     */
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    foreign_url : "",
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    cinecast_version : false,
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    annotation_type : false,
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    refresh_interval : 0,
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    limit_count : 10,
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    newest_first : false
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};
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IriSP.Widgets.AnnotationsList.prototype.template =
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    '<div class="Ldt-AnnotationsListWidget">'
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    + '<ul class="Ldt-AnnotationsList-ul">'
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    + '{{#annotations}}'
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    + '<li id="Ldt-Annotation-li-{{id}}" class="Ldt-AnnotationsList-li Ldt-TraceMe">'
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    + '<div class="Ldt-AnnotationsList-ThumbContainer">'
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    + '<a href="{{url}}">'
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    + '<img class="Ldt-AnnotationsList-Thumbnail" src="{{thumbnail}}" />'
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    + '</a>'
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    + '</div>'
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    + '<div class="Ldt-AnnotationsList-Duration">{{begin}} - {{end}}</div>'
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    + '<h3 class="Ldt-AnnotationsList-Title">'
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    + '<a href="{{url}}">{{title}}</a>'
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    + '</h3>'
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    + '<p class="Ldt-AnnotationsList-Description">{{description}}</p>'
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    + '{{#tags.length}}'
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    + '<ul class="Ldt-AnnotationsList-Tags">'
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    + '{{#tags}}'
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    + '{{#.}}'
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    + '<li class="Ldt-AnnotationsList-Tag-Li">'
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    + '<div class="Ldt-AnnotationsList-Tag-Div">{{.}}</div>'
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    + '</li>'
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    + '{{/.}}'
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    + '{{/tags}}'
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    + '</ul>'
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    + '{{/tags.length}}'
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    + '</li>'
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    + '{{/annotations}}'
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    + '</ul>'
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    + '</div>';
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IriSP.Widgets.AnnotationsList.prototype.clear = function() {
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};
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IriSP.Widgets.AnnotationsList.prototype.clearWidget = function() {
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};
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IriSP.Widgets.AnnotationsList.prototype.searchHandler = function(searchString) {
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    this.searchString = typeof searchString !== "undefined" ? searchString : '';
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    var _n = this.refresh(true);
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    if (this.searchString) {
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        if (_n) {
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            this.player.popcorn.trigger("IriSP.search.matchFound");
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        } else {
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            this.player.popcorn.trigger("IriSP.search.noMatchFound");
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        }
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    }
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}
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//obj.url = this.project_url + "/" + media + "/" + annotations[i].meta.project + "/" + annotations[i].meta["id-ref"] + '#id=' + annotations[i].id;
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IriSP.Widgets.AnnotationsList.prototype.ajaxSource = function() {
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    var _currentTime = this.player.popcorn.currentTime(),
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        _duration = this.source.getDuration();
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    if (typeof _currentTime == "undefined") {
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        _currentTime = 0;
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    }
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    this.lastAjaxQuery = _currentTime;
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    _currentTime = Math.floor(1000 * _currentTime);
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    var _url = Mustache.to_html(this.ajax_url, {
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        media : this.source.currentMedia.namespacedId.name,
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        begin : Math.max(0, _currentTime - this.ajax_granularity),
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        end : Math.min(_duration.milliseconds, _currentTime + this.ajax_granularity)
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    });
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    this.currentSource = this.player.loadMetadata(IriSP._.defaults({
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        "url" : _url
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    }, this.metadata));
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}
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IriSP.Widgets.AnnotationsList.prototype.refresh = function(_forceRedraw) {
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    _forceRedraw = (typeof _forceRedraw !== "undefined" && _forceRedraw);
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    if (this.currentSource.status !== IriSP.Model._SOURCE_STATUS_READY) {
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        return 0;
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    }
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    var _this = this,
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        _currentTime = this.player.popcorn.currentTime();
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    if (typeof _currentTime == "undefined") {
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        _currentTime = 0;
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    }
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    var _list = this.annotation_type ? this.currentSource.getAnnotationsByTypeTitle(this.annotation_type, true) : this.currentSource.getAnnotations();
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    if (this.searchString) {
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        _list = _list.searchByTextFields(this.searchString);
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    }
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    if (this.limit_count) {
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        _list = _list.sortBy(function(_annotation) {
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            return Math.abs(_annotation.begin.getSeconds() - _currentTime);
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        }).slice(0, this.limit_count)
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    }
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    if (this.newest_first) {
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        _list = _list.sortBy(function(_annotation) {
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            return -_annotation.created.valueOf();
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        });
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    } else {
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        _list = _list.sortBy(function(_annotation) {
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            return _annotation.begin;
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        });
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    }
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    var _ids = _list.idIndex;
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    if (_forceRedraw || !IriSP._.isEqual(_ids, this.lastIds)) {
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        /* This part only gets executed if the list needs updating */
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        this.lastIds = _ids;
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        var _html = Mustache.to_html(
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            this.template,
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            {
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                annotations : _list.map(function(_annotation) {
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                    var _url = (
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                        ( typeof _annotation.url !== "undefined" )
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                        ? _annotation.url
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                        : (
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                            ( typeof _this.source.projectId !== "undefined" && typeof _annotation.project !== "undefined" && _this.source.projectId !== _annotation.project )
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                            ? Mustache.to_html(
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                                this.foreign_url,
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                                {
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                                    project : _annotation.project,
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                                    media : _annotation.media.id.replace(/^.*:/,''),
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                                    annotation : _annotation.namespacedId.name,
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                                    annotationType : _annotation.annotationType.id.replace(/^.*:/,'')
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                                }
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                            )
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                            : '#id=' + _annotation.namespacedId.name
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                            )
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                    );
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                    var _res = {
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                        id : _annotation.id,
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                        title : _annotation.title.replace(_annotation.description,''),
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                        description : _annotation.description,
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                        begin : _annotation.begin.toString(),
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                        end : _annotation.end.toString(),
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                        thumbnail : typeof _annotation.thumbnail !== "undefined" ? _annotation.thumbnail : _this.default_thumbnail,
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                        url : _url,
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                        tags : _annotation.getTagTexts()
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                    }
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                    return _res;
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                })
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            });
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        this.$.html(_html);
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        this.$.find('.Ldt-AnnotationsList-Tag-Li').click(function() {
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            _this.player.popcorn.trigger("IriSP.search.triggeredSearch", IriSP.jQuery(this).text().replace(/(^\s+|\s+$)/g,''));
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        })
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        if(this.searchString) {
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            var _searchRe = new RegExp('(' + this.searchString.replace(/(\W)/gm,'\\$1') + ')','gim');
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            this.$.find(".Ldt-AnnotationsList-Title a, .Ldt-AnnotationsList-Description").each(function() {
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                var _$ = IriSP.jQuery(this);
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                _$.html(_$.text().replace(/(^\s+|\s+$)/g,'').replace(_searchRe, '<span class="Ldt-AnnotationsList-highlight">$1</span>'))
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            })
872
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        }
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    }
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872
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    if (this.ajax_url && this.ajax_granularity) {
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38b65761a7d5 TooltipWidget, SliderWidget, corrections in AnnotationList, CSS are now split
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        if (Math.abs(_currentTime - this.lastAjaxQuery) > (this.ajax_granularity / 2000)) {
872
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            this.ajaxSource();
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        }
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    }
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    return _list.length;
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}
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43629caa77bc Big refactoring of widget files + started migration of segmentwidget
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IriSP.Widgets.AnnotationsList.prototype.draw = function() {
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    var _this = this;
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    if (this.ajax_url && this.ajax_granularity) {
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        this.ajaxSource();
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    } else {
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        this.currentSource = this.source;
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    }
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    if (this.refresh_interval) {
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        window.setInterval(function() {
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            _this.currentSource.get()
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        }, this.refresh_interval);
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    }
674
835f5f454595 WIP - working on ajax autoupdate of the widget.
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    var _events = [
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        "IriSP.createAnnotationWidget.addedAnnotation",
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        "timeupdate",
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        "seeked",
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        "loadedmetadata"
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   218
    ];
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    for (var _i = 0; _i < _events.length; _i++) {
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        this.player.popcorn.listen(_events[_i], this.throttledRefresh);
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    }
730
357fc047503b redraw the widget after that an annotation has been added.
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    this.throttledRefresh();
698
329333e07267 lot of work on the ajax update front.
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870
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};