image或者selection的限制边界在接近边界时卡顿，在达到边界时，斜向拖动会变现为无法拖动或者卡顿

[maopixin]

Cropper version

2.0.0-rc.2

Link to minimal reproduction

https://fengyuanchen.github.io/cropperjs/v2/zh/api/cropper-image.html#%E9%99%90%E5%88%B6%E8%BE%B9%E7%95%8C

Steps to reproduce

官方示例，两个限制边缘都不行，卡顿，或者卡住

What is expected?

预期跟v1相同，在达到边界时只是不能出去，但是其他方向还是可以流畅的拖动

What is actually happening?

卡住

System Info

Any additional comments?

No response

[devmc12]

selection可以使用这个方法，prevent后，手动设置边界为最大/最小值： 如果启用了cropper-shade，mask有拖影的问题还没解决（悲

if (!this.inSelection(selection, maxSelection)) { event.preventDefault();

// 计算约束后的位置 let constrainedX = selection.x; let constrainedY = selection.y; let constrainedWidth = selection.width; let constrainedHeight = selection.height;

// 约束X坐标 if (selection.x < maxSelection.x) { constrainedX = maxSelection.x; } else if (selection.x + selection.width > maxSelection.x + maxSelection.width) { constrainedX = maxSelection.x + maxSelection.width - selection.width; }

// 约束Y坐标 if (selection.y < maxSelection.y) { constrainedY = maxSelection.y; } else if (selection.y + selection.height > maxSelection.y + maxSelection.height) { constrainedY = maxSelection.y + maxSelection.height - selection.height; }

// 如果宽度超出，调整宽度 if (selection.width > maxSelection.width) { constrainedWidth = maxSelection.width; constrainedX = maxSelection.x; }

// 如果高度超出，调整高度 if (selection.height > maxSelection.height) { constrainedHeight = maxSelection.height; constrainedY = maxSelection.y; }

// 使用$change方法同时设置位置和大小 const cropperSelection = event.target; cropperSelection.$moveTo(constrainedX, constrainedY); }

[devmc12]

已经改1.6.2版本了，2.0问题好多

[Tindtily]

这个问题应该在触发事件之前处理，而不是触发事件之后。所以单纯的从外部修改，效果不好。就会卡或者闪烁。

[kaseyhinton]

I was having issues with having boundaries/limits where if my selection was hitting the corner or multiple edges my selection would freeze and no longer allow me to resize. It turned out that I was also setting aspect-ratio which causes the selection to move while resizing (replicable in the cropper.js playground). After setting precise on the cropper-selection it no longer was moving while resizing and would no longer freeze my selection on resize. I am not sure if this is the same issue but this is what helped me.

[hopkinson]

v2 有什么好办法吗？

[cvpv]

希望官方能重视这个问题，毕竟边界限制是裁剪器的核心功能之一。