@antv/g6/lib/extend/g/canvas.js

graph visualization frame work

/**
 * @fileOverview extend G.Shape
 * @author huangtonger@aliyun.com
 * @ignore
 */

var Util = require('../../util/');
var G = require('@antv/g');
var Mixin = function Mixin() {};

Util.augment(Mixin, {
  beforeDraw: function beforeDraw() {
    var context = this.get('context');
    var el = this.get('el');
    this.emit('beforedraw');
    context && context.clearRect(0, 0, el.width, el.height);
  }
});

Util.mixin(G.canvas.Canvas, [Mixin]);
Util.mixin(G.svg.Canvas, [Mixin]);

module.exports = Mixin;