H5_0028：自定义事件并调用

1，自定义事件并自己触发事件

   // 定义事件方法
      function MyMousedown( event ) {
         if ( _this.enabled === false ) return;

        event.preventDefault();
        event.stopPropagation();

        if ( _state === STATE.NONE ) {

            _state = event.button;

        }

        if ( _state === STATE.ROTATE && !_this.noRotate ) {

            // _this.getMouseProjectionOnBall( event.pageX, event.pageY, _rotateStart );
            _this.getMouseProjectionOnBall( event.pageX, event.pageY, _rotateStart );
            _rotateEnd.copy(_rotateStart)

        } else if ( _state === STATE.ZOOM && !_this.noZoom ) {

            _this.getMouseOnScreen( event.pageX, event.pageY, _zoomStart );
            _zoomEnd.copy(_zoomStart);

        } else if ( _state === STATE.PAN && !_this.noPan ) {

            _this.getMouseOnScreen( event.pageX, event.pageY, _panStart );
            _panEnd.copy(_panStart)

        }

        window.addEventListener( 'MyMousemove', MyMousemove, false );
        window.addEventListener( 'MyMouseup', MyMouseup, false );
        _this.dispatchEvent( startEvent );


    }

  // 添加事件监听

    window.addEventListener( 'MyMousedown', MyMousedown, false );

 

　　

    // 触发事件

    // window.dispatchEvent(new Event('MyMousedown'));

            // 自定义resize事件

            var myEvent = new Event('resize');

            window.dispatchEvent(myEvent);