src/component/timeline/SliderTimelineView.js

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/**
 * @file Silder timeline view
 */
define(function (require) {

    var zrUtil = require('zrender/core/util');
    var graphic = require('../../util/graphic');
    var layout = require('../../util/layout');
    var TimelineView = require('./TimelineView');
    var TimelineAxis = require('./TimelineAxis');
    var symbolUtil = require('../../util/symbol');
    var axisHelper = require('../../coord/axisHelper');
    var BoundingRect = require('zrender/core/BoundingRect');
    var matrix = require('zrender/core/matrix');
    var numberUtil = require('../../util/number');
    var formatUtil = require('../../util/format');
    var encodeHTML = formatUtil.encodeHTML;

    var bind = zrUtil.bind;
    var each = zrUtil.each;

    var PI = Math.PI;

    return TimelineView.extend({

        type: 'timeline.slider',

        init: function (ecModel, api) {

            this.api = api;

            /**
             * @private
             * @type {module:echarts/component/timeline/TimelineAxis}
             */
            this._axis;

            /**
             * @private
             * @type {module:zrender/core/BoundingRect}
             */
            this._viewRect;

            /**
             * @type {number}
             */
            this._timer;

            /**
             * @type {module:zrende/Element}
             */
            this._currentPointer;

            /**
             * @type {module:zrender/container/Group}
             */
            this._mainGroup;

            /**
             * @type {module:zrender/container/Group}