tree 355de5e84f4ebd283835fa35bf4ee708b1f66aa9
parent 596145acfd6b9649f54112539c98e15d7f4204d4
author zalan@apple.com <zalan@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1524839687 +0000
committer zalan@apple.com <zalan@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1524839687 +0000

[LFC] Add layout tree iterators.
https://bugs.webkit.org/show_bug.cgi?id=185058

Reviewed by Antti Koivisto.

They work exactly like the renderer tree iterators.

* WebCore.xcodeproj/project.pbxproj:
* layout/layouttree/LayoutAncestorIterator.h: Added.
(WebCore::Layout::LayoutAncestorIterator<T>::LayoutAncestorIterator):
(WebCore::Layout::LayoutAncestorIterator<T>::operator):
(WebCore::Layout::LayoutAncestorIteratorAdapter<T>::LayoutAncestorIteratorAdapter):
(WebCore::Layout::LayoutAncestorIteratorAdapter<T>::begin const):
(WebCore::Layout::LayoutAncestorIteratorAdapter<T>::end const):
(WebCore::Layout::LayoutAncestorIteratorAdapter<T>::first const):
(WebCore::Layout::ancestorsOfType):
(WebCore::Layout::lineageOfType):
* layout/layouttree/LayoutBox.cpp:
* layout/layouttree/LayoutChildIterator.h: Added.
(WebCore::Layout::LayoutChildtIterator<T>::LayoutChildtIterator):
(WebCore::Layout::LayoutChildtIterator<T>::operator):
(WebCore::Layout::LayoutChildtIteratorAdapter<T>::LayoutChildtIteratorAdapter):
(WebCore::Layout::LayoutChildtIteratorAdapter<T>::begin const):
(WebCore::Layout::LayoutChildtIteratorAdapter<T>::end const):
(WebCore::Layout::LayoutChildtIteratorAdapter<T>::first const):
(WebCore::Layout::LayoutChildtIteratorAdapter<T>::last const):
(WebCore::Layout::childrenOfType):
* layout/layouttree/LayoutIterator.h: Added.
(WebCore::Layout::isLayoutBoxOfType):
(WebCore::Layout::Traversal::firstChild):
(WebCore::Layout::Traversal::lastChild):
(WebCore::Layout::Traversal::nextSibling):
(WebCore::Layout::Traversal::previousSibling):
(WebCore::Layout::Traversal::findAncestorOfType):
(WebCore::Layout::Traversal::nextAncestorSibling):
(WebCore::Layout::Traversal::nextWithin):
(WebCore::Layout::Traversal::firstWithin):
(WebCore::Layout::Traversal::next):
(WebCore::Layout::LayoutIterator<T>::LayoutIterator):
(WebCore::Layout::LayoutIterator<T>::traverseNextSibling):
(WebCore::Layout::LayoutIterator<T>::traverseNext):
(WebCore::Layout::LayoutIterator<T>::traversePreviousSibling):
(WebCore::Layout::LayoutIterator<T>::traverseAncestor):
(WebCore::Layout::LayoutIterator<T>::operator const):
(WebCore::Layout:: const):
(WebCore::Layout::= const):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@231093 268f45cc-cd09-0410-ab3c-d52691b4dbfc