Jonas Jenwald 2de6fd8e70 Prevent incomplete copy-all behaviour while text-extraction is running (PR 16286 follow-up)
Currently we only prevent triggering the actual text-extraction multiple times in "parallel", when using the "copy all text" feature, however the "copy"-event itself is not prevented.
The result is that if the user selects all text in a long PDF document and then uses the copy-shortcut multiple times in quick succession, we'll actually populate the clipboard with "incomplete" contents (via a `TextLayerBuilder` copy-listener) until all text-extraction finishes.
2023-04-25 21:39:16 +02:00
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