commit | c2d7bf00e841e28234f10f24bf97b7ced77c2df4 | [log] [tgz] |
---|---|---|
author | Masayuki Nakano <masayuki@d-toybox.com> | Fri Jul 14 01:29:33 2023 |
committer | moz-wptsync-bot <wptsync@mozilla.com> | Fri Jul 14 12:07:36 2023 |
tree | bae2cca122cdd49be2eeccb652446a96f6be23bd | |
parent | 2d61591fa56466f167ca5bb4099efb075e3f41b1 [diff] |
Make `nsFocusManager::ContentRemoved` let `IMEStateManager` of focus change when focused element is removed from the tree When an element in the shadow DOM of UA widget of `<input>` gets focus, `IMEStateManger` let know the element instead of `<input>`. Then, when `HTMLInputElement` destroys the shadow DOM at changing type attribute, `IMEStateManager` may not let know the focus change until `TextEditor` is created. Then, `IMEContentObserver` is created by `UpdateIMEState` notification from `EditorBase::PostCreateInternal`, but `TextControlState::GetIMEContentObserver()` fails to check whether it's observed by an `IMEContentObserver` instance (*1). Therefore, `TextControlState` fails to notify `IMEContentObserver` of the value change while `TextEditor` is not ready (*2). Then, `IMEContentObserver` will let IME know only a selection change without text change. Therefore, `ContentCacheInChild` will get invalid data due to outdated `mText` value and latest `mSelection` value (*3). For solving this issue, this patch makes `nsFocusManager::ContentRemoved` let `IMEStateManager` know the focus change synchronously because `TextEditor` may be initialized for some API calls of `HTMLInputElement` before `nsFocusManager` handles the focus change. 1. https://searchfox.org/mozilla-central/rev/1bcef85eb36da6de8fab890bc724e214dde68ecb/dom/html/TextControlState.cpp#3055 2. https://searchfox.org/mozilla-central/rev/1bcef85eb36da6de8fab890bc724e214dde68ecb/dom/html/TextControlState.cpp#2959 3. https://searchfox.org/mozilla-central/rev/1bcef85eb36da6de8fab890bc724e214dde68ecb/widget/ContentCache.cpp#54 Differential Revision: https://phabricator.services.mozilla.com/D183080 bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1841689 gecko-commit: ce811b4b8e62538cba1620fbe1f66b6963a00103 gecko-reviewers: emilio
The web-platform-tests Project is a cross-browser test suite for the Web-platform stack. Writing tests in a way that allows them to be run in all browsers gives browser projects confidence that they are shipping software that is compatible with other implementations, and that later implementations will be compatible with their implementations. This in turn gives Web authors/developers confidence that they can actually rely on the Web platform to deliver on the promise of working across browsers and devices without needing extra layers of abstraction to paper over the gaps left by specification editors and implementors.
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