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16737fbf2f
Long-pressing on a text in an unfocused iframe to select a word never works. Currently, you need to single tap to focus the iframe first. Each PresShell has an associated AccessibleCaretEventHub. This patch fixes this bug by routing the event to the AccessibleCaretEventHub under the event point, and handle it there. If the event is not handled, then we handle it by the focused AccessibleCaretEventHub as before. I've experimented with only routing the event to the AccessibleCaretEventHub under the event point, without routing to the fallback focused AccessibleCaretEventHub. However, caret dragging didn't work in iframes. I didn't debug further. Differential Revision: https://phabricator.services.mozilla.com/D52767 --HG-- extra : moz-landing-system : lando
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