commit | ca171c945b0b4baa360d7e7641fc52437b0ce4d1 | [log] [tgz] |
---|---|---|
author | Masayuki Nakano <masayuki@d-toybox.com> | Fri Jan 27 05:05:31 2023 |
committer | moz-wptsync-bot <wptsync@mozilla.com> | Sun Jan 29 09:25:03 2023 |
tree | 4579e2b7d244c474612efb239fb17a1d3c910f45 | |
parent | 567cae486424235411296091e5a1025f3519fc70 [diff] |
Make `HTMLTextAreaElement` handle the mutation changes after all ranges handle them A mutation caused by a call of `Text::SplitText` is handled by 2 method calls, `CharacterDataChanged` and `ContentInserted`, in `nsRange`. Therefore, `nsRange` stores some nodes for the later one, but `HTMLTextAreaElement::ContentInserted` is called before it and that causes another mutation which causes calling `nsRange::CharacterDataChanged` again. Therefore, the assertion detects the recursive call. For avoiding this issue, `HTMLTextAreaElement` needs to wait that all ranges handle the mutation first. Fortunately, `ContentInserted` is called with a script blocker (*1). Therefore, `HTMLTextAreaElement` can use script runner to reset the anonymous subtree. 1. https://searchfox.org/mozilla-central/rev/f1dc2743777711c821d43f9911ee7c4447d60c8e/dom/base/nsINode.cpp#1566,1610 Differential Revision: https://phabricator.services.mozilla.com/D167766 bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=822734 gecko-commit: e001f4e845a43564f0588adee16baf8044c74fcb gecko-reviewers: smaug
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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See the documentation website and in particular the system setup for running tests locally.
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