export function dragControllerDiv() {
	var resize = document.getElementsByClassName('drag-resize');
	var left = document.getElementsByClassName('drag-left');
	var mid = document.getElementsByClassName('drag-mid');
	var box = document.getElementsByClassName('drag-box');
	for (let i = 0; i < resize.length; i++) {
		// 鼠标按下事件
		resize[i].onmousedown = function(e) {
			//颜色改变提醒
			resize[i].style.background = '#818181';
			var startX = e.clientX;
			resize[i].left = resize[i].offsetLeft;
			// 鼠标拖动事件
			document.onmousemove = function(e) {
				var endX = e.clientX;
				var moveLen = resize[i].left + (endX -
				startX); // （endx-startx）=移动的距离。resize[i].left+移动的距离=左边区域最后的宽度
				var maxT = box[i].clientWidth - resize[i].offsetWidth; // 容器宽度 - 左边区域的宽度 = 右边区域的宽度

				if (moveLen < 32) moveLen = 32; // 左边区域的最小宽度为32px
				if (moveLen > maxT - 150) moveLen = maxT - 150; //右边区域最小宽度为150px

				resize[i].style.left = moveLen; // 设置左侧区域的宽度

				for (let j = 0; j < left.length; j++) {
					left[j].style.width = moveLen + 'px';
					mid[j].style.width = (box[i].clientWidth - moveLen - 10) + 'px';
				}
			};
			// 鼠标松开事件
			document.onmouseup = function(evt) {
				//颜色恢复
				resize[i].style.background = '#d6d6d6';
				document.onmousemove = null;
				document.onmouseup = null;
				resize[i].releaseCapture && resize[i]
			.releaseCapture(); //当你不在需要继续获得鼠标消息就要应该调用ReleaseCapture()释放掉
			};
			resize[i].setCapture && resize[i].setCapture(); //该函数在属于当前线程的指定窗口里设置鼠标捕获
			return false;
		};
	}
}