зеркало из https://github.com/mozilla/gecko-dev.git
09c4ea6dd3
PresShell::PageMove() climbs up to parent document when there is no scrollable parent in current document. However, if aExtend is true, it should expand Selection in the document itself. Therefore, it needs different rules to look for container of expanding Selection from scrollable element to scroll. Additionally, old rules (i.e., before the fix of bug 1369072 which caused this regression) were also buggy. It used parent scrollable element or root scrollable element simply. Therefore, if found scrollable element is ancestor of selection limiter, it didn't work as expected. This patch creates nsFrameSelection::GetFrameToPageSelect() to retrieve per-page selection container element with the following rules: - look for a scrollable element in selection limiter. - if there is no scrollable element, use selection limiter. - if there is no selection limiter, use the root frame. So, nsFrameSelection::CommonPageMove() should take nsIFrame rather than nsIScrollableFrame since container of per-page selection may be used in non-scrollable contenteditable element. If it's called with non-scrollable frame, it needs to compute the expanding range with the frame size. Differential Revision: https://phabricator.services.mozilla.com/D8954 --HG-- extra : moz-landing-system : lando |
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| base | ||
| build | ||
| doc | ||
| forms | ||
| generic | ||
| inspector | ||
| ipc | ||
| mathml | ||
| media | ||
| painting | ||
| printing | ||
| reftests | ||
| style | ||
| svg | ||
| tables | ||
| tools | ||
| xul | ||
| moz.build | ||