Right now, if you want to search by filename or metadata, you first have to click on "My Files" (or some other folder), then click on the magnifying glass icon, and enter the search term (and click on the "Metadata" option, which I think should be selected by default). Then the results are shown in a list view (regardless of your default display mode), and if you change to thumbnails or photo view, the search bar just disappears. If you want to search again, you have to click on "My Files" (since the magnifying glass icon is disabled at this point), then click on the magnifying glass icon, and start over (search and change view).
It would be simpler if the search bar was visible at all times, in list, thumbnail, and photo view. This way, you could change the search terms and get the new results without needing to select a folder, do the search, and change the display mode again every time.
Also, if no folder is selected, just assume that the search will comprise all folders accessible to the user, there's no need to disable the search button.
It's just an idea, but it would improve how searches are performed.
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