text: import GCanvas from './env/canvas';
  import GImage from './env/image';
  
  import GWebGLRenderingContext from './context/webgl/RenderingContext';
  import GContext2D from './context/2d/RenderingContext';
  
  import GBridgeWeex from './bridge/weex';
  import GBridgeReactNative from './bridge/react-native';
  
  export let Image = GImage;
  
  export let WeexBridge = GBridgeWeex;
  export let ReactNativeBridge = GBridgeReactNative;
  
  export function enable(el, { bridge, debug, disableAutoSwap, disableComboCommands } = {}) {
    const GBridge = GImage.GBridge = GCanvas.GBridge = GWebGLRenderingContext.GBridge = GContext2D.GBridge = bridge;
  
    GBridge.callEnable(el.ref, [
      0, // renderMode: 0--RENDERMODE_WHEN_DIRTY, 1--RENDERMODE_CONTINUOUSLY
      -1, // hybridLayerType:  0--LAYER_TYPE_NONE 1--LAYER_TYPE_SOFTWARE 2--LAYER_TYPE_HARDWARE
      false, // supportScroll
      false, // newCanvasMode
      1, // compatible
      'white', // clearColor
      false // sameLevel: newCanvasMode = true && true => GCanvasView and Webview is same level
    ]);
  
    if (debug === true) {
      GBridge.callEnableDebug();
    }
    if (disableComboCommands) {
      GBridge.callEnableDisableCombo();
    }
  
    var canvas = new GCanvas(el.ref, {disableAutoSwap, style: el.style});
  
    return canvas;
  }
  