nuke-biz-custom-chart/lib/rax-canvas/index.js

custom-chart

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _rax = require('rax');

var _weexNuke = require('weex-nuke');

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var isWeex = _weexNuke.Env.isWeex;

var canvasWeex = null;

if (isWeex) {
  canvasWeex = require('./canvas-weex');
}

var Canvas = function (_Component) {
  _inherits(Canvas, _Component);

  function Canvas() {
    _classCallCheck(this, Canvas);

    var _this = _possibleConstructorReturn(this, (Canvas.__proto__ || Object.getPrototypeOf(Canvas)).call(this));

    _this.getContext = _this.getContext.bind(_this);
    return _this;
  }

  _createClass(Canvas, [{
    key: 'getContext',
    value: function getContext() {
      var canvas = (0, _rax.findDOMNode)(this.refs.canvas);

      if (isWeex) {
        return new Promise(function (resolve) {
          requestAnimationFrame(function () {
            resolve(canvasWeex.init(canvas));
          });
        });
      }
      return new Promise(function (resolve) {
        if (canvas && canvas.getContext) {
          var context = canvas.getContext('2d');
          context.render = function () {};
          resolve(context);
        }
      });
    }
  }, {
    key: 'render',
    value: function render() {
      var _props$style = this.props.style,
          style = _props$style === undefined ? {} : _props$style;


      if (isWeex) {
        return (0, _rax.createElement)('gcanvas', _extends({}, this.props, { ref: 'canvas' }));
      }
      return (0, _rax.createElement)('canvas', _extends({}, this.props, { width: style.width, height: style.height, ref: 'canvas' }));
    }
  }]);

  return Canvas;
}(_rax.Component);

exports.default = Canvas;
module.exports = exports['default'];