javascript - 如何停用 Fabric.js 中的所有对象

Question

如何在保存图像之前停用 Fabric.js 中的所有对象？

function rasterize() {
  if (!myscript.Canvas.supports('toDataURL')) {
    alert('This browser doesn\'t provide means to serialize canvas to an image');
  }
  else {
    /*i want to deactivate all object here*/
    window.open(canvas.toDataURL('png'));
  }
}

Answer 1

canvas.deactivateAll(); => 没有事件被触发 http://fabricjs.com/docs/fabric.Canvas.html#deactivateAll

或

canvas.deactivateAllWithDispatch(); => 如果 activeObject 存在，则触发事件“before:selection:cleared”和“selection:cleared”。 http://fabricjs.com/docs/fabric.Canvas.html#deactivateAllWithDispatch