web/res/metadataplayer/AnnotationsList.js
changeset 598 d366aa22bd79
child 623 5b7d7ab6baff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/res/metadataplayer/AnnotationsList.js	Thu May 03 17:52:07 2012 +0200
@@ -0,0 +1,227 @@
+IriSP.Widgets.AnnotationsList = function(player, config) {
+    IriSP.Widgets.Widget.call(this, player, config);
+    this.searchString = false;
+    this.lastIds = [];
+    var _this = this;
+    this.throttledRefresh = IriSP._.throttle(function() {
+        _this.refresh(false);
+    }, 1500);
+};
+
+IriSP.Widgets.AnnotationsList.prototype = new IriSP.Widgets.Widget();
+
+IriSP.Widgets.AnnotationsList.prototype.defaults = {
+    /* URL when the annotations are to be reloaded from an LDT-like segment API
+     * e.g. http://ldt.iri.centrepompidou.fr/ldtplatform/api/ldt/segments/{{media}}/{{begin}}/{{end}}?callback=?
+     */
+    ajax_url : false,
+    /* how much ms should we look before and after the current timecode in the segment API
+     */
+    ajax_granularity : 300000, 
+    default_thumbnail : "http://ldt.iri.centrepompidou.fr/static/site/ldt/css/imgs/video_sequence.png",
+    /* URL when the annotation is not in the current project,
+     * e.g. http://ldt.iri.centrepompidou.fr/ldtplatform/ldt/front/player/{{media}}/{{project}}/{{annotationType}}#id={{annotation}}
+     */
+    foreign_url : "",
+    cinecast_version : false,
+    annotation_type : false,
+    refresh_interval : 0,
+    limit_count : 10,
+    newest_first : false
+};
+
+IriSP.Widgets.AnnotationsList.prototype.template =
+    '<div class="Ldt-AnnotationsListWidget">'
+    + '<ul class="Ldt-AnnotationsList-ul">'
+    + '{{#annotations}}'
+    + '<li id="Ldt-Annotation-li-{{id}}" class="Ldt-AnnotationsList-li Ldt-TraceMe">'
+    + '<div class="Ldt-AnnotationsList-ThumbContainer">'
+    + '<a href="{{url}}">'
+    + '<img class="Ldt-AnnotationsList-Thumbnail" src="{{thumbnail}}" />'
+    + '</a>'
+    + '</div>'
+    + '<div class="Ldt-AnnotationsList-Duration">{{begin}} - {{end}}</div>'
+    + '<h3 class="Ldt-AnnotationsList-Title">'
+    + '<a href="{{url}}">{{title}}</a>'
+    + '</h3>'
+    + '<p class="Ldt-AnnotationsList-Description">{{description}}</p>'
+    + '{{#tags.length}}'
+    + '<ul class="Ldt-AnnotationsList-Tags">'
+    + '{{#tags}}'
+    + '{{#.}}'
+    + '<li class="Ldt-AnnotationsList-Tag-Li">'
+    + '<div class="Ldt-AnnotationsList-Tag-Div">{{.}}</div>'
+    + '</li>'
+    + '{{/.}}'
+    + '{{/tags}}'
+    + '</ul>'
+    + '{{/tags.length}}'
+    + '</li>'
+    + '{{/annotations}}'
+    + '</ul>'
+    + '</div>';
+
+IriSP.Widgets.AnnotationsList.prototype.clear = function() {
+};
+
+IriSP.Widgets.AnnotationsList.prototype.clearWidget = function() {
+};
+
+IriSP.Widgets.AnnotationsList.prototype.onSearch = function(searchString) {
+    this.searchString = typeof searchString !== "undefined" ? searchString : '';
+    var _n = this.refresh(true);
+    if (this.searchString) {
+        if (_n) {
+            this.player.popcorn.trigger("IriSP.search.matchFound");
+        } else {
+            this.player.popcorn.trigger("IriSP.search.noMatchFound");
+        }
+    }
+}
+
+//obj.url = this.project_url + "/" + media + "/" + annotations[i].meta.project + "/" + annotations[i].meta["id-ref"] + '#id=' + annotations[i].id;
+
+IriSP.Widgets.AnnotationsList.prototype.ajaxSource = function() {
+    var _currentTime = this.player.popcorn.currentTime(),
+        _duration = this.source.getDuration();
+    if (typeof _currentTime == "undefined") {
+        _currentTime = 0;
+    }
+    this.lastAjaxQuery = _currentTime;
+    _currentTime = Math.floor(1000 * _currentTime);
+    var _url = Mustache.to_html(this.ajax_url, {
+        media : this.source.currentMedia.namespacedId.name,
+        begin : Math.max(0, _currentTime - this.ajax_granularity),
+        end : Math.min(_duration.milliseconds, _currentTime + this.ajax_granularity)
+    });
+    this.currentSource = this.player.loadMetadata(IriSP._.defaults({
+        "url" : _url
+    }, this.metadata));
+}
+
+IriSP.Widgets.AnnotationsList.prototype.refresh = function(_forceRedraw) {
+    _forceRedraw = (typeof _forceRedraw !== "undefined" && _forceRedraw);
+    if (this.currentSource.status !== IriSP.Model._SOURCE_STATUS_READY) {
+        return 0;
+    }
+    var _this = this,
+        _currentTime = this.player.popcorn.currentTime();
+    if (typeof _currentTime == "undefined") {
+        _currentTime = 0;
+    }
+    var _list = this.annotation_type ? this.currentSource.getAnnotationsByTypeTitle(this.annotation_type, true) : this.currentSource.getAnnotations();
+    if (this.searchString) {
+        _list = _list.searchByTextFields(this.searchString);
+    }
+    if (this.limit_count) {
+        _list = _list.sortBy(function(_annotation) {
+            return Math.abs(_annotation.begin.getSeconds() - _currentTime);
+        }).slice(0, this.limit_count)
+    }
+    if (this.newest_first) {
+        _list = _list.sortBy(function(_annotation) {
+            return -_annotation.created.valueOf();
+        });
+    } else {
+        _list = _list.sortBy(function(_annotation) {
+            return _annotation.begin;
+        });
+    }
+    
+    var _ids = _list.idIndex;
+    
+    if (_forceRedraw || !IriSP._.isEqual(_ids, this.lastIds)) {
+        /* This part only gets executed if the list needs updating */
+        this.lastIds = _ids;
+        var _data = _list.map(function(_annotation) {
+                    var _url = (
+                        ( typeof _annotation.url !== "undefined" && _annotation.url)
+                        ? _annotation.url
+                        : (
+                            ( typeof _this.source.projectId !== "undefined" && typeof _annotation.project !== "undefined" && _annotation.project && _this.source.projectId !== _annotation.project )
+                            ? Mustache.to_html(
+                                _this.foreign_url,
+                                {
+                                    project : _annotation.project,
+                                    media : _annotation.media.id.replace(/^.*:/,''),
+                                    annotation : _annotation.namespacedId.name,
+                                    annotationType : _annotation.annotationType.id.replace(/^.*:/,'')
+                                }
+                            )
+                            : '#id=' + _annotation.namespacedId.name
+                            )
+                    );
+                    var _res = {
+                        id : _annotation.id,
+                        title : _annotation.title.replace(_annotation.description,''),
+                        description : _annotation.description,
+                        begin : _annotation.begin.toString(),
+                        end : _annotation.end.toString(),
+                        thumbnail : typeof _annotation.thumbnail !== "undefined" && _annotation.thumbnail ? _annotation.thumbnail : _this.default_thumbnail,
+                        url : _url,
+                        tags : _annotation.getTagTexts()
+                    }
+                    return _res;
+            }),
+            _html = Mustache.to_html(
+                this.template,
+                {
+                    annotations : _data
+                });
+    
+        this.$.html(_html);
+    
+        this.$.find('.Ldt-AnnotationsList-Tag-Li').click(function() {
+            _this.player.popcorn.trigger("IriSP.search.triggeredSearch", IriSP.jQuery(this).text().replace(/(^\s+|\s+$)/g,''));
+        })
+        
+        if(this.searchString) {
+            var _searchRe = new RegExp('(' + this.searchString.replace(/(\W)/gm,'\\$1') + ')','gim');
+            this.$.find(".Ldt-AnnotationsList-Title a, .Ldt-AnnotationsList-Description").each(function() {
+                var _$ = IriSP.jQuery(this);
+                _$.html(_$.text().replace(/(^\s+|\s+$)/g,'').replace(_searchRe, '<span class="Ldt-AnnotationsList-highlight">$1</span>'))
+            })
+        }
+    }
+    
+    if (this.ajax_url && this.ajax_granularity) {
+        if (Math.abs(_currentTime - this.lastAjaxQuery) > (this.ajax_granularity / 2000)) {
+            this.ajaxSource();
+        }
+    }
+    return _list.length;
+}
+
+IriSP.Widgets.AnnotationsList.prototype.draw = function() {
+    
+    this.bindPopcorn("IriSP.search", "onSearch");
+    this.bindPopcorn("IriSP.search.closed", "onSearch");
+    this.bindPopcorn("IriSP.search.cleared", "onSearch");
+    
+    var _this = this;
+    
+    if (this.ajax_url && this.ajax_granularity) {
+        this.ajaxSource();
+    } else {
+        this.currentSource = this.source;
+    }
+    
+    if (this.refresh_interval) {
+        window.setInterval(function() {
+            _this.currentSource.get()
+        }, this.refresh_interval);
+    }
+    
+    var _events = [
+        "IriSP.createAnnotationWidget.addedAnnotation",
+        "timeupdate",
+        "seeked",
+        "loadedmetadata"
+    ];
+    for (var _i = 0; _i < _events.length; _i++) {
+        this.player.popcorn.listen(_events[_i], this.throttledRefresh);
+    }
+    
+    this.throttledRefresh();
+
+};