Reviewed by Darin Adler.
<rdar://problem/5694920> Typing (esp. deleting) is slower due to TOT WebCore changes
* editing/DeleteSelectionCommand.cpp:
(WebCore::DeleteSelectionCommand::initializeStartEnd): The common case here
is where there are no special elements. Avoid creating VisiblePositions in
that case. Additionally, this change postpones the more expensive creation
of an upstream VisiblePosition until the last possible moment.
(WebCore::DeleteSelectionCommand::saveTypingStyleState):
(WebCore::DeleteSelectionCommand::calculateTypingStyleAfterDelete): Add an
early return for a common case: deleting characters that are all inside the
same text node. In that case the style at the start of the selection will
not change during the delete, so there is no need to save/recompute it.
(WebCore::DeleteSelectionCommand::saveFullySelectedAnchor): Early return
before VisiblePosition creation if the ends of the selection aren't enclosed
by an anchor.
* editing/TypingCommand.cpp:
(WebCore::TypingCommand::markMisspellingsAfterTyping): Early return if spell
checking isn't enabled.
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@30425 268f45cc-cd09-0410-ab3c-d52691b4dbfc
3 files changed
