"pointerup" event of pdf reader can not work in Zotero Beta 29?

[iseexuhs]

Dear Zotero Team,

In beta 29, the " pointerup" event of pdf reader can't not work, some related features of my plugin fail.

currentReader._iframeWindow.addEventListener("pointerup",  ...);

[iseexuhs]

"pointerup" is used to capture the selected pdf text in my plugin. By testing, I found selecting pdf text can't trigger "pointerup" event now, but clicking the annotation item in left sidepane can.

[iseexuhs]

In beta 29, if I want to capture the selected text, what type of event should I add? 

I am reading the source codes, trying to figure it out. If anybody knows, welcome to share.

[iseexuhs]

I found a solution, although not perfect. 😊