抓取子节点时抓取复合节点

问题描述

我目前正在尝试在将Cytoscape.js嵌入到我的应用程序中实现以下行为：我希望当抓取复合节点的特定子节点时，抓取整个复合节点。

如果尝试使用此代码，但无法按我预期的那样工作：

I'm currently trying to implement the developp the following behavior in my application embedding Cytoscape.js : I would like that when a particular child node of a compound node is grabbed, the whole compound node is grabbed.
If tried using this code but it does not work as I expect :

cy.$(mySubNodeSelector)
                        .on('grab', function(){
                            this.ungrabify();
                            this.parent().select();
                            this.parent().grabify();
                        });

有人对如何实现此行为有建议吗？
非常感谢。

Does anybody has an advice about how to implement this behavior ?Thanks a lot.

推荐答案

在子项上禁用事件：

您的代码没有执行任何操作，因为（1 ），您将在元素被抓取后改变抓取能力，（二）将抓取（允许抓取）与抓取（用户手势）混合使用。

Your code doesn't do anything because (1) you're mutating grabbability after elements have been grabbed and (2) you conflate grabifying (allowing grabbing) with grabbing (a user gesture).

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