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/*
* Copyright (C) 2008 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.
* 3. Neither the name of Apple Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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 "AccessibilityNodeObject.h"
#include "LayoutRect.h"
#include "RenderObject.h"
#include <wtf/Forward.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class AccessibilitySVGRoot;
class AXObjectCache;
class Element;
class FrameView;
class HTMLAreaElement;
class HTMLElement;
class HTMLLabelElement;
class HTMLMapElement;
class IntPoint;
class IntSize;
class Node;
class RenderTextControl;
class RenderView;
class VisibleSelection;
class Widget;
class AccessibilityRenderObject : public AccessibilityNodeObject, public CanMakeWeakPtr<AccessibilityRenderObject> {
public:
static Ref<AccessibilityRenderObject> create(RenderObject*);
virtual ~AccessibilityRenderObject();
void init() override;
bool isAttachment() const override;
bool isFileUploadButton() const override;
bool isSelected() const override;
bool isFocused() const override;
bool isLoaded() const override;
bool isOffScreen() const override;
bool isUnvisited() const override;
bool isVisited() const override;
bool isLinked() const override;
bool hasBoldFont() const override;
bool hasItalicFont() const override;
bool hasPlainText() const override;
bool hasSameFont(RenderObject*) const override;
bool hasSameFontColor(RenderObject*) const override;
bool hasSameStyle(RenderObject*) const override;
bool hasUnderline() const override;
bool canSetTextRangeAttributes() const override;
bool canSetExpandedAttribute() const override;
void setAccessibleName(const AtomicString&) override;
// Provides common logic used by all elements when determining isIgnored.
AccessibilityObjectInclusion defaultObjectInclusion() const override;
int layoutCount() const override;
double estimatedLoadingProgress() const override;
AccessibilityObject* firstChild() const override;
AccessibilityObject* lastChild() const override;
AccessibilityObject* previousSibling() const override;
AccessibilityObject* nextSibling() const override;
AccessibilityObject* parentObject() const override;
AccessibilityObject* parentObjectIfExists() const override;
AccessibilityObject* observableObject() const override;
void linkedUIElements(AccessibilityChildrenVector&) const override;
bool exposesTitleUIElement() const override;
AccessibilityObject* titleUIElement() const override;
AccessibilityObject* correspondingControlForLabelElement() const override;
AccessibilityObject* correspondingLabelForControlElement() const override;
bool supportsARIAOwns() const override;
bool isPresentationalChildOfAriaRole() const override;
bool ariaRoleHasPresentationalChildren() const override;
// Should be called on the root accessibility object to kick off a hit test.
AccessibilityObjectInterface* accessibilityHitTest(const IntPoint&) const override;
Element* anchorElement() const override;
LayoutRect boundingBoxRect() const override;
LayoutRect elementRect() const override;
IntPoint clickPoint() override;
void setRenderer(RenderObject*);
RenderObject* renderer() const override { return m_renderer.get(); }
RenderBoxModelObject* renderBoxModelObject() const;
Node* node() const override;
Document* document() const override;
RenderView* topRenderer() const;
RenderTextControl* textControl() const;
HTMLLabelElement* labelElementContainer() const;
URL url() const override;
PlainTextRange selectedTextRange() const override;
VisibleSelection selection() const override;
String stringValue() const override;
String helpText() const override;
String textUnderElement(AccessibilityTextUnderElementMode = AccessibilityTextUnderElementMode()) const override;
String text() const override;
int textLength() const override;
String selectedText() const override;
const AtomicString& accessKey() const override;
virtual const String& actionVerb() const;
Widget* widget() const override;
Widget* widgetForAttachmentView() const override;
virtual void getDocumentLinks(AccessibilityChildrenVector&);
FrameView* documentFrameView() const override;
void clearChildren() override;
void updateChildrenIfNecessary() override;
void setFocused(bool) override;
void setSelectedTextRange(const PlainTextRange&) override;
void setValue(const String&) override;
void setSelectedRows(AccessibilityChildrenVector&) override;
AccessibilityOrientation orientation() const override;
void detach(AccessibilityDetachmentType, AXObjectCache*) override;
void textChanged() override;
void addChildren() override;
bool canHaveChildren() const override;
bool canHaveSelectedChildren() const override;
void selectedChildren(AccessibilityChildrenVector&) override;
void visibleChildren(AccessibilityChildrenVector&) override;
void tabChildren(AccessibilityChildrenVector&) override;
bool shouldFocusActiveDescendant() const override;
bool shouldNotifyActiveDescendant() const;
AccessibilityObject* activeDescendant() const override;
void handleActiveDescendantChanged() override;
void handleAriaExpandedChanged() override;
VisiblePositionRange visiblePositionRange() const override;
VisiblePositionRange visiblePositionRangeForLine(unsigned) const override;
IntRect boundsForVisiblePositionRange(const VisiblePositionRange&) const override;
IntRect boundsForRange(const RefPtr<Range>) const override;
void setSelectedVisiblePositionRange(const VisiblePositionRange&) const override;
bool isVisiblePositionRangeInDifferentDocument(const VisiblePositionRange&) const;
bool hasPopup() const override;
bool supportsARIADropping() const override;
bool supportsARIADragging() const override;
bool isARIAGrabbed() override;
Vector<String> determineARIADropEffects() override;
VisiblePosition visiblePositionForPoint(const IntPoint&) const override;
VisiblePosition visiblePositionForIndex(unsigned indexValue, bool lastIndexOK) const override;
int index(const VisiblePosition&) const override;
VisiblePosition visiblePositionForIndex(int) const override;
int indexForVisiblePosition(const VisiblePosition&) const override;
void lineBreaks(Vector<int>&) const override;
PlainTextRange doAXRangeForLine(unsigned) const override;
PlainTextRange doAXRangeForIndex(unsigned) const override;
String doAXStringForRange(const PlainTextRange&) const override;
IntRect doAXBoundsForRange(const PlainTextRange&) const override;
IntRect doAXBoundsForRangeUsingCharacterOffset(const PlainTextRange&) const override;
String stringValueForMSAA() const override;
String stringRoleForMSAA() const override;
String nameForMSAA() const override;
String descriptionForMSAA() const override;
AccessibilityRole roleValueForMSAA() const override;
String passwordFieldValue() const override;
void titleElementText(Vector<AccessibilityText>&) const override;
protected:
explicit AccessibilityRenderObject(RenderObject*);
ScrollableArea* getScrollableAreaIfScrollable() const override;
void scrollTo(const IntPoint&) const override;
bool isDetached() const override { return !m_renderer; }
AccessibilityRole determineAccessibilityRole() override;
bool computeAccessibilityIsIgnored() const override;
#if ENABLE(MATHML)
virtual bool isIgnoredElementWithinMathTree() const;
#endif
WeakPtr<RenderObject> m_renderer;
private:
bool isAccessibilityRenderObject() const final { return true; }
void ariaListboxSelectedChildren(AccessibilityChildrenVector&);
void ariaListboxVisibleChildren(AccessibilityChildrenVector&);
bool isAllowedChildOfTree() const;
bool hasTextAlternative() const;
String positionalDescriptionForMSAA() const;
PlainTextRange documentBasedSelectedTextRange() const;
Element* rootEditableElementForPosition(const Position&) const;
bool nodeIsTextControl(const Node*) const;
void setNeedsToUpdateChildren() override { m_childrenDirty = true; }
bool needsToUpdateChildren() const override { return m_childrenDirty; }
void setNeedsToUpdateSubtree() override { m_subtreeDirty = true; }
Path elementPath() const override;
bool isTabItemSelected() const;
LayoutRect checkboxOrRadioRect() const;
void addRadioButtonGroupMembers(AccessibilityChildrenVector& linkedUIElements) const;
void addRadioButtonGroupChildren(AccessibilityObject*, AccessibilityChildrenVector&) const;
AccessibilityObject* internalLinkElement() const;
AccessibilityObject* accessibilityImageMapHitTest(HTMLAreaElement*, const IntPoint&) const;
AccessibilityObject* accessibilityParentForImageMap(HTMLMapElement*) const;
AccessibilityObjectInterface* elementAccessibilityHitTest(const IntPoint&) const override;
bool renderObjectIsObservable(RenderObject&) const;
RenderObject* renderParentObject() const;
bool isDescendantOfElementType(const QualifiedName& tagName) const;
bool isDescendantOfElementType(const HashSet<QualifiedName>&) const;
bool isSVGImage() const;
void detachRemoteSVGRoot();
enum CreationChoice { Create, Retrieve };
AccessibilitySVGRoot* remoteSVGRootElement(CreationChoice createIfNecessary) const;
AccessibilityObjectInterface* remoteSVGElementHitTest(const IntPoint&) const;
void offsetBoundingBoxForRemoteSVGElement(LayoutRect&) const;
bool supportsPath() const override;
void addHiddenChildren();
void addTextFieldChildren();
void addImageMapChildren();
void addCanvasChildren();
void addAttachmentChildren();
void addRemoteSVGChildren();
#if PLATFORM(COCOA)
void updateAttachmentViewParents();
#endif
String expandedTextValue() const override;
bool supportsExpandedTextValue() const override;
void updateRoleAfterChildrenCreation();
void ariaSelectedRows(AccessibilityChildrenVector&);
bool elementAttributeValue(const QualifiedName&) const;
void setElementAttributeValue(const QualifiedName&, bool);
OptionSet<SpeakAs> speakAsProperty() const override;
const String liveRegionStatus() const override;
const String liveRegionRelevant() const override;
bool liveRegionAtomic() const override;
bool isBusy() const override;
bool inheritsPresentationalRole() const override;
bool shouldGetTextFromNode(AccessibilityTextUnderElementMode) const;
#if ENABLE(APPLE_PAY)
bool isApplePayButton() const;
ApplePayButtonType applePayButtonType() const;
String applePayButtonDescription() const;
#endif
RenderObject* targetElementForActiveDescendant(const QualifiedName&, AccessibilityObject*) const;
bool canHavePlainText() const;
// Special handling of click point for links.
IntPoint linkClickPoint();
// Rects utilities.
static IntRect boundsForRects(LayoutRect const&, LayoutRect const&, RefPtr<Range> const&);
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_ACCESSIBILITY(AccessibilityRenderObject, isAccessibilityRenderObject())