Project View - Expand node/path toward a PsiElement without altering selection

Hello there, 

I've been searching for hours in the SDK's source but cannot find any "easy" way to expand the Project View's tree to a given PsiElement without also selecting it.

The only thing working is this:

ProjectView.selectPsiElement(psiElement, false);

but it also selects the associated node in the tree, whereas I'd like the previous selection to remain.

I've tried:

AbstractTreeUI.expand(psiElement, null);
AbstractTreeUI.userScrollTo(psiElement, null);

which don't work consistently depending on the tree's state, and even:

JTree.scrollPathToVisible(new TreePath(treeUI.getNodeForElement(psiElement, false)))

but AbstractTreeUI.getNodeForElement returns null most of the time.

Any help would be greatly appreciated,

Thank you very much in advance.

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2 comments
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Permanently deleted user

Have you tried AbstractTreeUi.select(element)? It should scroll to this node, but should not add it to selection.

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Permanently deleted user

Thank you Sergey, unfortunately that doesn't seem to do anything, at least in my case.

In the end, the only solution I found is copying the source code from BaseProjectTreeBuilder into my own class (as the interesting stuff is unfortunately private) and make it a bit simpler. For anyone who's interested, it can be found here:
https://drive.google.com/file/d/0Bw7fmtFbB4rvRGlkVzhua2pELVk/view

Just copy that in your project and call it like this:

TreeBuilderUtil.expandPathTo(treeBuilder, elementToExpandToward)

It's a bit ugly to have to do this, especially considering it might break in a future platform update, but it's working really well for now.

If anyone has a better suggestion, I'd be very happy to hear it.

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