This script enables advanced photo manipulation in Messenger's modal view. It supports zooming in/out under the mouse pointer—keeping the point under the cursor fixed—as well as dragging the zoomed image. A global control bar at the top of the screen provides buttons for zooming in ("+"), resetting the view (magnifier icon), and zooming out ("-"). The functionality applies only to modal photos (identified by visible "Next photo" or "Previous photo" elements) and works exclusively on blob URLs.
目前为
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