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Luciano Pacheco authored
When the element has the focus is hidden/removed/disabled the browser moves the focus to <body>, in this situation user doesn't have any visual clue where is the focus. To fix this we move the focus from <body> to file list which is the default element when opening Files app. Use "focusin" and "focusout" in the <body> element, because these two events bubble from any body's child element, whereas "focus" event doesn't. In the event handler we use requestIdleCallback() to give a chance for any synchronous code to finish and potentially set the focus somewhere else other than <body>. Test: browser_tests --gtest_filter="*tabindexFocusBody*" Bug: 1059137,957413 Change-Id: I9563294a3b6c541cf6bd2bba03470041bc8af41b Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2089444Reviewed-by:
Noel Gordon <noel@chromium.org> Reviewed-by:
Alex Danilo <adanilo@chromium.org> Commit-Queue: Noel Gordon <noel@chromium.org> Auto-Submit: Luciano Pacheco <lucmult@chromium.org> Cr-Commit-Position: refs/heads/master@{#748090}
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