Fix DnD of files from OS Explorer into Tree Views #12409
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Also clears "local transfers" when drag ends, preventing the items from a previous D&D operation to spill over to the next one. Contributed on behalf of STMicroelectronics Signed-off-by: Thomas Mäder <t.s.maeder@gmail.com>
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…lipse-theia#12409) Also clears "local transfers" when drag ends, preventing the items from a previous D&D operation to spill over to the next one. Contributed on behalf of STMicroelectronics Signed-off-by: Thomas Mäder <t.s.maeder@gmail.com> Co-authored-by: Tobias Ortmayr <tortmayr@eclipsesource.com>
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What it does
Fixes dragging files from the OS explorer into tree views contributed via VS Code API. The problem was caused by a wrong check in the
dragOverhandler in the tree view (https://developer.mozilla.org/en-US/docs/Web/API/DataTransfer/files). Also discovered that thelocalDataTransferused to transfer objects within the plugin host was not cleared when first dragging locally, then from outside the Theia application.Contributed on behalf of STMicroelectronics
Fixes #12404
How to test
We can reuse the test procedure from #12065.
Review checklist
Reminder for reviewers