Jonas Jenwald 0e69973d71 Add a new "pagesdestroy" event, dispatched *before* the BaseViewer removes an existing document
This new event essentially mirrors the existing "pagesinit" event, and will allow e.g. a custom implementation of the viewer to be notified before the current PDF document is removed from the viewer.

By using this new event, we're thus able to dispatch a "pageclose" event for JavaScript actions when closing the existing document.
2020-12-17 15:26:20 +01:00
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