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拖拽时触碰到目标tree之后不松开鼠标再移出目标tree,但node还是被拖入到了最后一个接触过的tree中 #81

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lt125327422 opened this issue Jun 26, 2019 · 5 comments
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拖拽时触碰到目标tree之后不松开鼠标再移出目标tree,但node还是被拖入到了最后一个接触过的tree中 #81

lt125327422 opened this issue Jun 26, 2019 · 5 comments

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@lt125327422
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从某个tree把其中的一个节点拖拽到了另一个tree之后不松开鼠标,之后再把鼠标移入到tree外层,
但node还是被拖入到了最后一个被接触的tree.我想当鼠标松开的目的地在tree外面的话就取消掉这次拖拽
@phphe
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phphe commented Jun 26, 2019

在ondragend里判断是否在树外, 返回false阻止

@lt125327422
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嗯,肯定是在这个钩子完成,但是可以用哪个参数来判断是否在树外,如果你能解决这个问题,我将非常感谢你,谢谢了!

@phphe
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phphe commented Jun 26, 2019

一个思路: ondragend的参数draggableHelperInfo draggableHelperInfo.event是事件, 可以获取鼠标位置, 然后用鼠标位置判断是否在树外

@lt125327422
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你说的这种方案对于目标树只有一个的话确实很好办,但是我们的需求中目标树的数量是动态的,位置也不确定,不过我非常感谢你能回答我的问题

@phphe
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phphe commented Jun 27, 2019

占位节点所属树即为目标树 node._vm.store.dplh._vm.store

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@phphe @lt125327422