зеркало из https://github.com/mozilla/gecko-dev.git
ab7ca91730
There are a couple ways to fix this specific bug in Preferences. We could expand the padding up to the start border and remove the margin, though there would still exist a 1px padding on the richlistbox. Historically this code, at least for Preferences, was impossible to hit. The scrollbox couldn't get clicked because its size was defined by an inner xul:box that was the size of the richlistitems and whatever margin they had. Clicking next to the richlistitems in the Preferences before this regression was a click on the anonymous box and thus didn't clear the selection. Another potential fix could be if we added a special attribute that doesn't allow deselecting if clicking into nothing, but that seems like a band-aid that we would end up using in many other places instead of just removing this behavior. Differential Revision: https://phabricator.services.mozilla.com/D18371 --HG-- extra : moz-landing-system : lando |
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