The source project of this merge request has been removed.
taskmanager: Fix blank space and highlight residue in ToolTipInstance
This commit fixes two bugs and makes ToolTipInstance really reusable:
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Open 3 or more windows of an app, then close the last of them. The tooltip remains the same size with a blank space where the closed app's thumbnail used to be.
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The highlight will remain if an instance closed by middle click is reused.
Thank @bharadwaj-raju for finding out the bug.
Edited by Fushan Wen