src/widgets/Segments.js
author veltr
Fri, 16 Nov 2012 17:36:56 +0100
changeset 982 cfcbac34d020
parent 964 d7d56ea2d0a6
child 983 97fef7a4b189
permissions -rw-r--r--
Added Multi Segments Widget
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// TODO: Trigger IriSP.SegmentsWidget.click
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IriSP.Widgets.Segments = function(player, config) {
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    IriSP.Widgets.Widget.call(this, player, config);
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};
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IriSP.Widgets.Segments.prototype = new IriSP.Widgets.Widget();
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IriSP.Widgets.Segments.prototype.defaults = {
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    annotation_type : "chap",
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    colors: ["#1f77b4","#aec7e8","#ff7f0e","#ffbb78","#2ca02c","#98df8a","#d62728","#ff9896","#9467bd","#c5b0d5","#8c564b","#c49c94","#e377c2","#f7b6d2","#7f7f7f","#c7c7c7","#bcbd22","#dbdb8d","#17becf","#9edae5"],
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    line_height: 8,
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    background: "#e0e0e0",
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    overlap: .25
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};
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IriSP.Widgets.Segments.prototype.template =
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    '<div class="Ldt-Segments-List"></div>'
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    + '<div class="Ldt-Segments-Position"></div>'
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    + '<div class="Ldt-Segments-Tooltip"></div>';
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IriSP.Widgets.Segments.prototype.annotationTemplate =
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    '<div class="Ldt-Segments-Segment Ldt-TraceMe" trace-info="segment-id:{{id}}, media-id:{{media_id}}" segment-text="{{text}}"'
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    + 'style="top:{{top}}px; height:{{height}}px; left:{{left}}px; width:{{width}}px; background:{{medcolor}}" data-base-color="{{color}}" data-low-color="{{lowcolor}}" data-medium-color="{{medcolor}}"></div>'
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IriSP.Widgets.Segments.prototype.draw = function() {
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    this.onMdpEvent("search", "onSearch");
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    this.onMdpEvent("search.closed", "onSearch");
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    this.onMdpEvent("search.cleared", "onSearch");
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    this.onMediaEvent("timeupdate", "onTimeupdate");
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    this.renderTemplate();
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    var _list = this.getWidgetAnnotations().filter(function(_ann) {
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            return _ann.getDuration() > 0;
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        }),
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        _this = this,
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        _scale = this.width / this.source.getDuration();
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    var list_$ = this.$.find('.Ldt-Segments-List'),
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        lines = [],
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        zindex = 1;
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    function saturate(r, g, b, s) {
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        function satcomp(c) {
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            return Math.floor(240 * (1 - s) + c * s);
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        }
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        var res = ( 0x10000 * satcomp(r) + 0x100 * satcomp(g) + satcomp(b)).toString(16);
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        while (res.length < 6) {
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            res = "0" + res;
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        }
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        return "#" + res;
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    }
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    function unselect() {
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        _this.tooltip.hide();
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        _this.$segments.each(function() {
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            var _segment = IriSP.jQuery(this);
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            _segment.css("background", _segment.attr("data-medium-color"));
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        });
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    }
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    _list.forEach(function(_annotation, _k) {
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        var _left = _annotation.begin * _scale,
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            _width = ( _annotation.getDuration() ) * _scale,
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            _center = Math.floor( _left + _width / 2 ),
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            _fulltext = _annotation.title + ( _annotation.description ? ( '<br/>' + _annotation.description ) : '' ),
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            line = IriSP._(lines).find(function(line) {
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                return !IriSP._(line.annotations).find(function(a) {
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                    return a.begin < _annotation.end && a.end > _annotation.begin
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                });
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            });
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        if (!line) {
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            line = { index: lines.length, annotations: []};
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            lines.push(line); 
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        }
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        line.annotations.push(_annotation);
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        var _top = ((1 - _this.overlap) * line.index) * _this.line_height,
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            color = ( typeof _annotation.color !== "undefined" && _annotation.color ? _annotation.color : _this.colors[_k % _this.colors.length] ),
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            r = parseInt(color.substr(1,2),16),
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            g = parseInt(color.substr(3,2),16),
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            b = parseInt(color.substr(5,2),16),
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            medcolor = saturate(r, g, b, .5),
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            lowcolor = saturate(r, g, b, .2);
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        var _data = {
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            color : color,
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            medcolor: medcolor,
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            lowcolor: lowcolor,
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            text: _fulltext.replace(/(\n|\r|\r\n)/mg,' ').replace(/(^.{120,140})[\s].+$/m,'$1&hellip;'),
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            left : _left,
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            width : _width,
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            top: _top,
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            height: _this.line_height - 1,
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            id : _annotation.id,
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            media_id : _annotation.getMedia().id
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        };
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        var _html = Mustache.to_html(_this.annotationTemplate, _data),
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            _el = IriSP.jQuery(_html);
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        _el.mouseover(function() {
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                _annotation.trigger("select");
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            })
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            .mouseout(function() {
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                _annotation.trigger("unselect");
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            })
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            .click(function() {
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                _annotation.trigger("click");
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            })
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            .appendTo(list_$)
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        _annotation.on("select", function() {
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            _this.$segments.each(function() {
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                var _segment = IriSP.jQuery(this);
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                _segment.css({
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                    background: _segment.attr("data-low-color")
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                });
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            });
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            _this.tooltip.show( _center, _top, _data.text, _data.color );
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            _el.css({
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                background: color,
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                "z-index": ++zindex
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            });
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        });
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        _annotation.on("unselect", unselect);
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    });
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    this.$.css({
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        width : this.width + "px",
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        height : (((1 - this.overlap) * lines.length + this.overlap) * this.line_height) + "px",
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        background : this.background,
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        margin: "1px 0"
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    });
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    this.insertSubwidget(this.$.find(".Ldt-Segments-Tooltip"), { type: "Tooltip" }, "tooltip");
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    this.$segments = this.$.find('.Ldt-Segments-Segment');
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}
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IriSP.Widgets.Segments.prototype.onSearch = function(searchString) {
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    this.searchString = typeof searchString !== "undefined" ? searchString : '';
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    var _found = 0,
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        _re = IriSP.Model.regexpFromTextOrArray(searchString, true);
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    if (this.searchString) {
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        this.$segments.each(function() {
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            var _el = IriSP.jQuery(this);
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            if (_re.test(_el.attr("segment-text"))) {
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                _el.css("background", _el.attr("data-base-color"));
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                _found++;
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            } else {
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                _el.css("background", _el.attr("data-low-color"));
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            }
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        });
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        if (_found) {
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            this.player.trigger("search.matchFound");
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        } else {
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            this.player.trigger("search.noMatchFound");
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        }
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    } else {
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        _this.$segments.each(function() {
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            var _segment = IriSP.jQuery(this);
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            _segment.css("background", _segment.attr("data-medium-color"));
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        });
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    }
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}
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IriSP.Widgets.Segments.prototype.onTimeupdate = function(_time) {
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    var _x = Math.floor( this.width * _time / this.media.duration);
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    this.$.find('.Ldt-Segments-Position').css({
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        left: _x + "px"
03967b6ada7c ArrowWidget, AnnotationWidget
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    })
875
43629caa77bc Big refactoring of widget files + started migration of segmentwidget
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}