Create Source/modules/accessibility/ and move most of core/accessibility/* into it

Source/core/accessibility/AXRenderObject.h

-/*
- * 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 Computer, 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.
- */
-
-#ifndef AXRenderObject_h
-#define AXRenderObject_h
-
-#include "core/accessibility/AXNodeObject.h"
-#include "platform/geometry/LayoutRect.h"
-#include "wtf/Forward.h"
-
-namespace blink {
-
-class AXSVGRoot;
-class Element;
-class FrameView;
-class HTMLAreaElement;
-class IntPoint;
-class Node;
-class VisibleSelection;
-class Widget;
-
-class AXRenderObject : public AXNodeObject {
-protected:
-    explicit AXRenderObject(RenderObject*);
-public:
-    static PassRefPtr<AXRenderObject> create(RenderObject*);
-    virtual ~AXRenderObject();
-
-    // Public, overridden from AXObject.
-    virtual RenderObject* renderer() const override final { return m_renderer; }
-    virtual LayoutRect elementRect() const override;
-
-    void setRenderer(RenderObject*);
-    RenderBoxModelObject* renderBoxModelObject() const;
-    Document* topDocument() const;
-    bool shouldNotifyActiveDescendant() const;
-    virtual ScrollableArea* getScrollableAreaIfScrollable() const override final;
-    virtual AccessibilityRole determineAccessibilityRole() override;
-    void checkCachedElementRect() const;
-    void updateCachedElementRect() const;
-
-protected:
-    RenderObject* m_renderer;
-    mutable LayoutRect m_cachedElementRect;
-    mutable LayoutRect m_cachedFrameRect;
-    mutable IntPoint m_cachedScrollPosition;
-    mutable bool m_cachedElementRectDirty;
-
-    //
-    // Overridden from AXObject.
-    //
-
-    virtual void init() override;
-    virtual void detach() override;
-    virtual bool isDetached() const override { return !m_renderer; }
-    virtual bool isAXRenderObject() const override { return true; }
-
-    // Check object role or purpose.
-    virtual bool isAttachment() const override;
-    virtual bool isFileUploadButton() const override;
-    virtual bool isLinked() const override;
-    virtual bool isLoaded() const override;
-    virtual bool isOffScreen() const override;
-    virtual bool isReadOnly() const override;
-    virtual bool isVisited() const override;
-
-    // Check object state.
-    virtual bool isFocused() const override;
-    virtual bool isSelected() const override;
-
-    // Whether objects are ignored, i.e. not included in the tree.
-    virtual AXObjectInclusion defaultObjectInclusion() const override;
-    virtual bool computeAccessibilityIsIgnored() const override;
-
-    // Properties of static elements.
-    virtual const AtomicString& accessKey() const override;
-    virtual AccessibilityOrientation orientation() const override;
-    virtual String text() const override;
-    virtual int textLength() const override;
-    virtual KURL url() const override;
-
-    // Properties of interactive elements.
-    virtual String actionVerb() const override;
-    virtual String stringValue() const override;
-
-    // ARIA attributes.
-    virtual AXObject* activeDescendant() const override;
-    virtual void ariaFlowToElements(AccessibilityChildrenVector&) const override;
-    virtual void ariaControlsElements(AccessibilityChildrenVector&) const override;
-    virtual void ariaDescribedbyElements(AccessibilityChildrenVector&) const override;
-    virtual void ariaLabelledbyElements(AccessibilityChildrenVector&) const override;
-    virtual void ariaOwnsElements(AccessibilityChildrenVector&) const override;
-
-    virtual bool ariaHasPopup() const override;
-    virtual bool ariaRoleHasPresentationalChildren() const override;
-    virtual bool isPresentationalChildOfAriaRole() const override;
-    virtual bool shouldFocusActiveDescendant() const override;
-    virtual bool supportsARIADragging() const override;
-    virtual bool supportsARIADropping() const override;
-    virtual bool supportsARIAFlowTo() const override;
-    virtual bool supportsARIAOwns() const override;
-
-    // ARIA live-region features.
-    virtual const AtomicString& liveRegionStatus() const override;
-    virtual const AtomicString& liveRegionRelevant() const override;
-    virtual bool liveRegionAtomic() const override;
-    virtual bool liveRegionBusy() const override;
-
-    // Accessibility Text.
-    virtual String textUnderElement() const override;
-
-    // Accessibility Text - (To be deprecated).
-    virtual String helpText() const override;
-
-    // Location and click point in frame-relative coordinates.
-    virtual void markCachedElementRectDirty() const override;
-    virtual IntPoint clickPoint() override;
-
-    // Hit testing.
-    virtual AXObject* accessibilityHitTest(const IntPoint&) const override;
-    virtual AXObject* elementAccessibilityHitTest(const IntPoint&) const override;
-
-    // High-level accessibility tree access. Other modules should only use these functions.
-    virtual AXObject* computeParent() const override;
-    virtual AXObject* computeParentIfExists() const override;
-
-    // Low-level accessibility tree exploration, only for use within the accessibility module.
-    virtual AXObject* firstChild() const override;
-    virtual AXObject* nextSibling() const override;
-    virtual void addChildren() override;
-    virtual bool canHaveChildren() const override;
-    virtual void updateChildrenIfNecessary() override;
-    virtual bool needsToUpdateChildren() const override { return m_childrenDirty; }
-    virtual void setNeedsToUpdateChildren() override { m_childrenDirty = true; }
-    virtual void clearChildren() override;
-    virtual AXObject* observableObject() const override;
-
-    // Properties of the object's owning document or page.
-    virtual double estimatedLoadingProgress() const override;
-
-    // DOM and Render tree access.
-    virtual Node* node() const override;
-    virtual Document* document() const override;
-    virtual FrameView* documentFrameView() const override;
-    virtual Element* anchorElement() const override;
-    virtual Widget* widgetForAttachmentView() const override;
-
-    // Selected text.
-    virtual PlainTextRange selectedTextRange() const override;
-
-    // Modify or take an action on an object.
-    virtual void setSelectedTextRange(const PlainTextRange&) override;
-    virtual void setValue(const String&) override;
-    virtual void scrollTo(const IntPoint&) const override;
-
-    // Notifications that this object may have changed.
-    virtual void handleActiveDescendantChanged() override;
-    virtual void handleAriaExpandedChanged() override;
-    virtual void textChanged() override;
-
-    // Text metrics. Most of these should be deprecated, needs major cleanup.
-    virtual int index(const VisiblePosition&) const override;
-    virtual VisiblePosition visiblePositionForIndex(int) const override;
-    virtual void lineBreaks(Vector<int>&) const override;
-
-private:
-    bool isAllowedChildOfTree() const;
-    void ariaListboxSelectedChildren(AccessibilityChildrenVector&);
-    PlainTextRange ariaSelectedTextRange() const;
-    bool nodeIsTextControl(const Node*) const;
-    bool isTabItemSelected() const;
-    AXObject* accessibilityImageMapHitTest(HTMLAreaElement*, const IntPoint&) const;
-    bool renderObjectIsObservable(RenderObject*) const;
-    RenderObject* renderParentObject() const;
-    bool isDescendantOfElementType(const HTMLQualifiedName& tagName) const;
-    bool isSVGImage() const;
-    void detachRemoteSVGRoot();
-    AXSVGRoot* remoteSVGRootElement() const;
-    AXObject* remoteSVGElementHitTest(const IntPoint&) const;
-    void offsetBoundingBoxForRemoteSVGElement(LayoutRect&) const;
-    void addHiddenChildren();
-    void addTextFieldChildren();
-    void addImageMapChildren();
-    void addCanvasChildren();
-    void addAttachmentChildren();
-    void addPopupChildren();
-    void addRemoteSVGChildren();
-    void addInlineTextBoxChildren();
-
-    void ariaSelectedRows(AccessibilityChildrenVector&);
-    bool elementAttributeValue(const QualifiedName&) const;
-    bool inheritsPresentationalRole() const;
-    LayoutRect computeElementRect() const;
-    VisibleSelection selection() const;
-    int indexForVisiblePosition(const VisiblePosition&) const;
-    void accessibilityChildrenFromAttribute(QualifiedName attr, AccessibilityChildrenVector&) const;
-};
-
-DEFINE_AX_OBJECT_TYPE_CASTS(AXRenderObject, isAXRenderObject());
-
-} // namespace blink
-
-#endif // AXRenderObject_h