Hi,
I'd like to remove legacy API to dispatch keyboard events.
One is nsIDOMWindowUtils.sendKeyEvent(), this has already replaced
completely with nsITextInputProcessor [*1] since 2015 [*2]. It's really
easy to rewrite legacy API users with new API because our EventUtils.js
for mochitest has a good wrapper for using new API [*3].
The other is nsIFrameLoader.sendCrossProcessKeyEvent(). This was
implemented for old Fennec [*4] and looks like that nobody uses this API
now. This shares same implementation with
nsIDOMWindowUtils.sendKeyEvent() but dispatches keyboard events only in
the remote process associated with the frame loader. Unfortunately, we
don't have alternative API for this. However, if the remote process has
focus, keyboard events synthesized with nsITextInputProcessor are sent
to the remote process. So, I guess that we don't need this API anymore.
I'm working on this at bug 1134542:
https://bugzilla.mozilla.org/show_bug.cgi?id=1134542
Thunderbird still uses nsIDOMWindowUtils.sendKeyEvent(). Therefore,
I'll wait to land the removing patch until those bugs [*5][*6] are
fixed. However, if they won't be fixed by the next weekend, I'll drop
these legacy API soon anyway.
*1
https://searchfox.org/mozilla-central/source/dom/interfaces/base/nsITextInputProcessor.idl
*2 https://bugzilla.mozilla.org/show_bug.cgi?id=917322
*3
https://searchfox.org/mozilla-central/rev/97cb0aa64ae51adcabff76fb3b5eb18368f5f8ab/testing/mochitest/tests/SimpleTest/EventUtils.js#835-905
*4 https://bugzilla.mozilla.org/show_bug.cgi?id=553149
*5 https://bugzilla.mozilla.org/show_bug.cgi?id=1433648
*6 https://bugzilla.mozilla.org/show_bug.cgi?id=1434317
--
Masayuki Nakano <masay...@d-toybox.com>
Software Engineer, Mozilla
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