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

Source/core/accessibility/AXNodeObject.h

-/*
- * Copyright (C) 2012, Google 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 AXNodeObject_h
-#define AXNodeObject_h
-
-#include "core/accessibility/AXObject.h"
-#include "wtf/Forward.h"
-
-namespace blink {
-
-class Element;
-class HTMLLabelElement;
-class LayoutRect;
-class Node;
-
-class AXNodeObject : public AXObject {
-protected:
-    explicit AXNodeObject(Node*);
-
-public:
-    static PassRefPtr<AXNodeObject> create(Node*);
-    virtual ~AXNodeObject();
-
-protected:
-    // Protected data.
-    AccessibilityRole m_ariaRole;
-    bool m_childrenDirty;
-#if ENABLE(ASSERT)
-    bool m_initialized;
-#endif
-
-    virtual bool computeAccessibilityIsIgnored() const override;
-    virtual AccessibilityRole determineAccessibilityRole();
-
-    String accessibilityDescriptionForElements(WillBeHeapVector<RawPtrWillBeMember<Element> > &elements) const;
-    void alterSliderValue(bool increase);
-    String ariaAccessibilityDescription() const;
-    void ariaLabeledByElements(WillBeHeapVector<RawPtrWillBeMember<Element> >& elements) const;
-    void changeValueByStep(bool increase);
-    AccessibilityRole determineAriaRoleAttribute() const;
-    void elementsFromAttribute(WillBeHeapVector<RawPtrWillBeMember<Element> >& elements, const QualifiedName&) const;
-    bool hasContentEditableAttributeSet() const;
-    bool isDescendantOfBarrenParent() const;
-    // This returns true if it's focusable but it's not content editable and it's not a control or ARIA control.
-    bool isGenericFocusableElement() const;
-    HTMLLabelElement* labelForElement(Element*) const;
-    AXObject* menuButtonForMenu() const;
-    Element* menuItemElementForMenu() const;
-    Element* mouseButtonListener() const;
-    AccessibilityRole remapAriaRoleDueToParent(AccessibilityRole) const;
-    bool isNativeCheckboxOrRadio() const;
-    void setNode(Node*);
-    AXObject* correspondingControlForLabelElement() const;
-    HTMLLabelElement* labelElementContainer() const;
-
-    //
-    // Overridden from AXObject.
-    //
-
-    virtual void init() override;
-    virtual void detach() override;
-    virtual bool isDetached() const override { return !m_node; }
-    virtual bool isAXNodeObject() const override final { return true; }
-
-    // Check object role or purpose.
-    virtual bool isAnchor() const override final;
-    virtual bool isControl() const override;
-    virtual bool isEmbeddedObject() const override final;
-    virtual bool isFieldset() const override final;
-    virtual bool isHeading() const override final;
-    virtual bool isHovered() const override final;
-    virtual bool isImage() const override final;
-    bool isImageButton() const;
-    virtual bool isInputImage() const override final;
-    virtual bool isLink() const override final;
-    virtual bool isMenu() const override final;
-    virtual bool isMenuButton() const override final;
-    virtual bool isMultiSelectable() const override;
-    bool isNativeImage() const;
-    virtual bool isNativeTextControl() const override final;
-    virtual bool isNonNativeTextControl() const override final;
-    virtual bool isPasswordField() const override final;
-    virtual bool isProgressIndicator() const override;
-    virtual bool isSlider() const override;
-
-    // Check object state.
-    virtual bool isChecked() const override final;
-    virtual bool isClickable() const override final;
-    virtual bool isEnabled() const override;
-    virtual AccessibilityExpanded isExpanded() const override;
-    virtual bool isIndeterminate() const override final;
-    virtual bool isPressed() const override final;
-    virtual bool isReadOnly() const override;
-    virtual bool isRequired() const override final;
-
-    // Check whether certain properties can be modified.
-    virtual bool canSetFocusAttribute() const override;
-    virtual bool canSetValueAttribute() const override;
-
-    // Properties of static elements.
-    virtual bool canvasHasFallbackContent() const override final;
-    virtual bool exposesTitleUIElement() const override;
-    virtual int headingLevel() const override final;
-    virtual unsigned hierarchicalLevel() const override final;
-    virtual String text() const override;
-    virtual AXObject* titleUIElement() const override;
-
-    // Properties of interactive elements.
-    virtual AccessibilityButtonState checkboxOrRadioValue() const override final;
-    virtual void colorValue(int& r, int& g, int& b) const override final;
-    virtual String valueDescription() const override;
-    virtual float valueForRange() const override;
-    virtual float maxValueForRange() const override;
-    virtual float minValueForRange() const override;
-    virtual String stringValue() const override;
-    virtual const AtomicString& textInputType() const override;
-
-    // ARIA attributes.
-    virtual String ariaDescribedByAttribute() const override final;
-    virtual String ariaLabeledByAttribute() const override final;
-    virtual AccessibilityRole ariaRoleAttribute() const override final;
-
-    // Accessibility Text.
-    virtual String textUnderElement() const override;
-
-    // Accessibility Text - (To be deprecated).
-    virtual String accessibilityDescription() const override;
-    virtual String title() const override;
-    virtual String helpText() const override;
-
-    // Location and click point in frame-relative coordinates.
-    virtual LayoutRect elementRect() const override;
-
-    // High-level accessibility tree access.
-    virtual AXObject* computeParent() const override;
-    virtual AXObject* computeParentIfExists() const override;
-
-    // Low-level accessibility tree exploration.
-    virtual AXObject* firstChild() const override;
-    virtual AXObject* nextSibling() const override;
-    virtual void addChildren() override;
-    virtual bool canHaveChildren() const override;
-    void addChild(AXObject*);
-    void insertChild(AXObject*, unsigned index);
-
-    // DOM and Render tree access.
-    virtual Element* actionElement() const override final;
-    virtual Element* anchorElement() const override;
-    virtual Document* document() const override;
-    virtual Node* node() const override { return m_node; }
-
-    // Modify or take an action on an object.
-    virtual void setFocused(bool) override final;
-    virtual void increment() override final;
-    virtual void decrement() override final;
-
-    // Notifications that this object may have changed.
-    virtual void childrenChanged() override;
-    virtual void selectionChanged() override final;
-    virtual void textChanged() override;
-    virtual void updateAccessibilityRole() override final;
-
-private:
-    Node* m_node;
-
-    String alternativeTextForWebArea() const;
-    void alternativeText(Vector<AccessibilityText>&) const;
-    void ariaLabeledByText(Vector<AccessibilityText>&) const;
-    void changeValueByPercent(float percentChange);
-    float stepValueForRange() const;
-};
-
-DEFINE_AX_OBJECT_TYPE_CASTS(AXNodeObject, isAXNodeObject());
-
-} // namespace blink
-
-#endif // AXNodeObject_h