2011-06-30 Anders Carlsson <andersca@apple.com>
Reviewed by Dan Bernstein.
More ScrollableArea scaffolding
https://bugs.webkit.org/show_bug.cgi?id=63678
Add an enclosingScrollableArea stub.
* src/WebScrollbarImpl.cpp:
(WebKit::WebScrollbarImpl::enclosingScrollableArea):
* src/WebScrollbarImpl.h:
2011-06-30 Anders Carlsson <andersca@apple.com>
Reviewed by Dan Bernstein.
More ScrollableArea scaffolding
https://bugs.webkit.org/show_bug.cgi?id=63678
* WebScrollBar.h:
(WebScrollBar::enclosingScrollableArea):
Always return 0, WebScrollbar has no concept of an enclosing scrollable area.
2011-06-30 Anders Carlsson <andersca@apple.com>
Reviewed by Dan Bernstein.
More ScrollableArea scaffolding
https://bugs.webkit.org/show_bug.cgi?id=63678
Add a way to get the enclosing scrollable area for a given scrollable area.
Also, add ScrollableArea::isPinnedInDirectionOfScrollDelta.
* page/FrameView.cpp:
(WebCore::FrameView::enclosingScrollableArea):
Return 0 for now.
* page/FrameView.h:
Add FrameView::enclosingScrollableArea.
* platform/ScrollableArea.cpp:
(WebCore::ScrollableArea::isPinnedInDirectionOfScrollDelta):
Return whether the area is pinned in the direction of the scroll delta.
* platform/ScrollableArea.h:
Add new member functions.
* platform/chromium/FramelessScrollView.cpp:
(WebCore::FramelessScrollView::enclosingScrollableArea):
* platform/chromium/FramelessScrollView.h:
Add stub.
* platform/win/PopupMenuWin.h:
(WebCore::PopupMenuWin::enclosingScrollableArea):
Always return 0.
* rendering/RenderLayer.cpp:
(WebCore::RenderLayer::enclosingScrollableLayer):
Add helper function.
(WebCore::RenderLayer::scrollByRecursively):
Use the new enclosingScrollableLayer helper function.
(WebCore::RenderLayer::enclosingScrollableArea):
Return the enclosing scrollable area.
* rendering/RenderLayer.h:
Add new member function.
* rendering/RenderListBox.cpp:
(WebCore::RenderListBox::enclosingScrollableArea):
Return 0 for now.
* rendering/RenderListBox.h:
Add new member function.
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@90152 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/Source/WebCore/platform/ScrollableArea.h b/Source/WebCore/platform/ScrollableArea.h
index b7456c0..8534cae 100644
--- a/Source/WebCore/platform/ScrollableArea.h
+++ b/Source/WebCore/platform/ScrollableArea.h
@@ -144,6 +144,11 @@
bool isVerticalScrollerPinnedToMinimumPosition() const { return !verticalScrollbar() || scrollPosition(verticalScrollbar()) <= minimumScrollPosition().y(); }
bool isVerticalScrollerPinnedToMaximumPosition() const { return !verticalScrollbar() || scrollPosition(verticalScrollbar()) >= maximumScrollPosition().y(); }
+ // Note that this only returns scrollable areas that can actually be scrolled.
+ virtual ScrollableArea* enclosingScrollableArea() const = 0;
+
+ bool isPinnedInDirection(const IntSize&) const;
+
virtual bool shouldRubberBandInDirection(ScrollDirection) const { return true; }
virtual void disconnectFromPage() { }
