user_usage_report keeps a counter for files read.
The app uses
- OC_Filesystem::read hook
- Event listener (the legacy one) for IPreview::EVENT
Request for previews do not trigger the hook, hence the additional event listener.
The thumbnails for a list or grid view should not count, so we need the width and height.
Signed-off-by: Daniel Kesselberg <mail@danielkesselberg.de>