Get the currently focused pane

[Marie-Jean THORAVAL]

I would like to make a shortcut behave differently depending on which pane is currently focused, for example the libraries and collections pane or the items tree or the PDF Reader.

How can I get which pane is currently focused?

[Abe Jellinek]

I don’t believe there’s a single state variable that tells you which of these you’re in, but you can use separate checks for each:

document.getElementById('zotero-collections-tree').contains(document.activeElement)

document.getElementById('zotero-items-tree').contains(document.activeElement)

window.location.href === 'chrome://zotero/content/reader.xhtml' || window.Zotero_Tabs?.selectedType === 'reader'

On Feb 11, 2026, at 9:35 AM, Marie-Jean THORAVAL <mjtho...@gmail.com> wrote:

I would like to make a shortcut behave differently depending on which pane is currently focused, for example the libraries and collections pane or the items tree or the PDF Reader.

How can I get which pane is currently focused?

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