| /* |
| * Copyright (C) 2011 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #pragma once |
| |
| #include "AccessibilityObject.h" |
| #include "ScrollView.h" |
| |
| namespace WebCore { |
| |
| class AccessibilityScrollbar; |
| class Scrollbar; |
| class ScrollView; |
| |
| class AccessibilityScrollView final : public AccessibilityObject { |
| public: |
| static Ref<AccessibilityScrollView> create(ScrollView*); |
| AccessibilityRole roleValue() const override { return AccessibilityRole::ScrollArea; } |
| ScrollView* scrollView() const override { return currentScrollView(); } |
| |
| virtual ~AccessibilityScrollView(); |
| |
| AccessibilityObject* webAreaObject() const override; |
| |
| private: |
| explicit AccessibilityScrollView(ScrollView*); |
| void detachRemoteParts(AccessibilityDetachmentType) override; |
| |
| ScrollView* currentScrollView() const; |
| ScrollableArea* getScrollableAreaIfScrollable() const override { return currentScrollView(); } |
| void scrollTo(const IntPoint&) const override; |
| bool computeAccessibilityIsIgnored() const override; |
| bool isAccessibilityScrollViewInstance() const override { return true; } |
| bool isEnabled() const override { return true; } |
| |
| bool isAttachment() const override; |
| PlatformWidget platformWidget() const override; |
| Widget* widgetForAttachmentView() const override { return currentScrollView(); } |
| |
| AccessibilityObject* scrollBar(AccessibilityOrientation) override; |
| void addChildren() override; |
| void clearChildren() override; |
| AXCoreObject* accessibilityHitTest(const IntPoint&) const override; |
| void updateChildrenIfNecessary() override; |
| void setNeedsToUpdateChildren() override { m_childrenDirty = true; } |
| void updateScrollbars(); |
| void setFocused(bool) override; |
| bool canSetFocusAttribute() const override; |
| bool isFocused() const override; |
| |
| Document* document() const override; |
| FrameView* documentFrameView() const override; |
| LayoutRect elementRect() const override; |
| AccessibilityObject* parentObject() const override; |
| AccessibilityObject* parentObjectIfExists() const override { return parentObject(); } |
| |
| AccessibilityObject* firstChild() const override { return webAreaObject(); } |
| AccessibilityScrollbar* addChildScrollbar(Scrollbar*); |
| void removeChildScrollbar(AccessibilityObject*); |
| |
| WeakPtr<ScrollView> m_scrollView; |
| WeakPtr<HTMLFrameOwnerElement> m_frameOwnerElement; |
| RefPtr<AccessibilityObject> m_horizontalScrollbar; |
| RefPtr<AccessibilityObject> m_verticalScrollbar; |
| bool m_childrenDirty; |
| }; |
| |
| } // namespace WebCore |
| |
| SPECIALIZE_TYPE_TRAITS_ACCESSIBILITY(AccessibilityScrollView, isAccessibilityScrollViewInstance()) |