/platform/external/webkit/WebCore/accessibility/AccessibilityRenderObject.h
https://github.com/aharish/totoro-gb-opensource-update2 · C Header · 307 lines · 236 code · 44 blank · 27 comment · 0 complexity · 5be468627cf8d4b982eff83d6c073a47 MD5 · raw file
- /*
- * 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 AccessibilityRenderObject_h
- #define AccessibilityRenderObject_h
- #include "AccessibilityObject.h"
- namespace WebCore {
-
- class AXObjectCache;
- class Element;
- class Frame;
- class FrameView;
- class HitTestResult;
- class HTMLAnchorElement;
- class HTMLAreaElement;
- class HTMLElement;
- class HTMLLabelElement;
- class HTMLMapElement;
- class HTMLSelectElement;
- class IntPoint;
- class IntSize;
- class Node;
- class RenderObject;
- class RenderListBox;
- class RenderTextControl;
- class RenderView;
- class VisibleSelection;
- class String;
- class Widget;
-
- class AccessibilityRenderObject : public AccessibilityObject {
- protected:
- AccessibilityRenderObject(RenderObject*);
- public:
- static PassRefPtr<AccessibilityRenderObject> create(RenderObject*);
- virtual ~AccessibilityRenderObject();
-
- bool isAccessibilityRenderObject() const { return true; }
-
- virtual bool isAnchor() const;
- virtual bool isAttachment() const;
- virtual bool isHeading() const;
- virtual bool isLink() const;
- virtual bool isImageButton() const;
- virtual bool isImage() const;
- virtual bool isNativeImage() const;
- virtual bool isPasswordField() const;
- virtual bool isTextControl() const;
- virtual bool isNativeTextControl() const;
- virtual bool isWebArea() const;
- virtual bool isCheckboxOrRadio() const;
- virtual bool isFileUploadButton() const;
- virtual bool isInputImage() const;
- virtual bool isProgressIndicator() const;
- virtual bool isSlider() const;
- virtual bool isMenuRelated() const;
- virtual bool isMenu() const;
- virtual bool isMenuBar() const;
- virtual bool isMenuButton() const;
- virtual bool isMenuItem() const;
- virtual bool isControl() const;
- virtual bool isFieldset() const;
- virtual bool isGroup() const;
- virtual bool isEnabled() const;
- virtual bool isSelected() const;
- virtual bool isFocused() const;
- virtual bool isChecked() const;
- virtual bool isHovered() const;
- virtual bool isIndeterminate() const;
- virtual bool isLoaded() const;
- virtual bool isMultiSelectable() const;
- virtual bool isOffScreen() const;
- virtual bool isPressed() const;
- virtual bool isReadOnly() const;
- virtual bool isVisited() const;
- virtual bool isRequired() const;
- virtual bool isLinked() const;
- virtual bool isExpanded() const;
- virtual void setIsExpanded(bool);
- const AtomicString& getAttribute(const QualifiedName&) const;
- virtual bool canSetFocusAttribute() const;
- virtual bool canSetTextRangeAttributes() const;
- virtual bool canSetValueAttribute() const;
- virtual bool canSetExpandedAttribute() const;
- virtual bool hasIntValue() const;
-
- virtual bool accessibilityIsIgnored() const;
-
- virtual int headingLevel() const;
- virtual int intValue() const;
- virtual String valueDescription() const;
- virtual float valueForRange() const;
- virtual float maxValueForRange() const;
- virtual float minValueForRange() const;
- virtual AccessibilityObject* selectedRadioButton();
- virtual AccessibilityObject* selectedTabItem();
- virtual int layoutCount() const;
- virtual double estimatedLoadingProgress() const;
-
- virtual AccessibilityObject* doAccessibilityHitTest(const IntPoint&) const;
- virtual AccessibilityObject* focusedUIElement() const;
- virtual AccessibilityObject* firstChild() const;
- virtual AccessibilityObject* lastChild() const;
- virtual AccessibilityObject* previousSibling() const;
- virtual AccessibilityObject* nextSibling() const;
- virtual AccessibilityObject* parentObject() const;
- virtual AccessibilityObject* parentObjectIfExists() const;
- virtual AccessibilityObject* observableObject() const;
- virtual void linkedUIElements(AccessibilityChildrenVector&) const;
- virtual bool exposesTitleUIElement() const;
- virtual AccessibilityObject* titleUIElement() const;
- virtual AccessibilityObject* correspondingControlForLabelElement() const;
- virtual AccessibilityObject* correspondingLabelForControlElement() const;
- virtual void ariaOwnsElements(AccessibilityChildrenVector&) const;
- virtual bool supportsARIAOwns() const;
- virtual AccessibilityRole ariaRoleAttribute() const;
- virtual bool isPresentationalChildOfAriaRole() const;
- virtual bool ariaRoleHasPresentationalChildren() const;
- void updateAccessibilityRole();
-
- virtual AXObjectCache* axObjectCache() const;
-
- virtual Element* actionElement() const;
- Element* mouseButtonListener() const;
- FrameView* frameViewIfRenderView() const;
- virtual Element* anchorElement() const;
- AccessibilityObject* menuForMenuButton() const;
- AccessibilityObject* menuButtonForMenu() const;
-
- virtual IntRect boundingBoxRect() const;
- virtual IntRect elementRect() const;
- virtual IntSize size() const;
- virtual IntPoint clickPoint() const;
-
- void setRenderer(RenderObject* renderer) { m_renderer = renderer; }
- RenderObject* renderer() const { return m_renderer; }
- RenderView* topRenderer() const;
- RenderTextControl* textControl() const;
- Document* document() const;
- FrameView* topDocumentFrameView() const;
- HTMLLabelElement* labelElementContainer() const;
-
- virtual KURL url() const;
- virtual PlainTextRange selectedTextRange() const;
- virtual VisibleSelection selection() const;
- virtual String stringValue() const;
- virtual String ariaLabeledByAttribute() const;
- virtual String title() const;
- virtual String ariaDescribedByAttribute() const;
- virtual String accessibilityDescription() const;
- virtual String helpText() const;
- virtual String textUnderElement() const;
- virtual String text() const;
- virtual int textLength() const;
- virtual PassRefPtr<Range> ariaSelectedTextDOMRange() const;
- virtual String selectedText() const;
- virtual const AtomicString& accessKey() const;
- virtual const String& actionVerb() const;
- virtual Widget* widget() const;
- virtual Widget* widgetForAttachmentView() const;
- virtual void getDocumentLinks(AccessibilityChildrenVector&);
- virtual FrameView* documentFrameView() const;
- virtual String language() const;
- virtual unsigned hierarchicalLevel() const;
- virtual const AccessibilityChildrenVector& children();
-
- virtual void setFocused(bool);
- virtual void setSelectedTextRange(const PlainTextRange&);
- virtual void setValue(const String&);
- virtual void setSelected(bool);
- virtual void setSelectedRows(AccessibilityChildrenVector&);
- virtual void changeValueByPercent(float percentChange);
- virtual AccessibilityOrientation orientation() const;
- virtual void increment();
- virtual void decrement();
-
- virtual void detach();
- virtual void childrenChanged();
- virtual void contentChanged();
- virtual void addChildren();
- virtual bool canHaveChildren() const;
- virtual void selectedChildren(AccessibilityChildrenVector&);
- virtual void visibleChildren(AccessibilityChildrenVector&);
- virtual void tabChildren(AccessibilityChildrenVector&);
- virtual bool shouldFocusActiveDescendant() const;
- virtual AccessibilityObject* activeDescendant() const;
- virtual void handleActiveDescendantChanged();
- virtual VisiblePositionRange visiblePositionRange() const;
- virtual VisiblePositionRange visiblePositionRangeForLine(unsigned) const;
- virtual IntRect boundsForVisiblePositionRange(const VisiblePositionRange&) const;
- virtual void setSelectedVisiblePositionRange(const VisiblePositionRange&) const;
- virtual bool supportsARIAFlowTo() const;
- virtual void ariaFlowToElements(AccessibilityChildrenVector&) const;
- virtual bool supportsARIADropping();
- virtual bool supportsARIADragging();
- virtual bool isARIAGrabbed();
- virtual void setARIAGrabbed(bool);
- virtual void determineARIADropEffects(Vector<String>&);
-
- virtual VisiblePosition visiblePositionForPoint(const IntPoint&) const;
- virtual VisiblePosition visiblePositionForIndex(unsigned indexValue, bool lastIndexOK) const;
- virtual int index(const VisiblePosition&) const;
- virtual VisiblePosition visiblePositionForIndex(int) const;
- virtual int indexForVisiblePosition(const VisiblePosition&) const;
-
- virtual PlainTextRange doAXRangeForLine(unsigned) const;
- virtual PlainTextRange doAXRangeForIndex(unsigned) const;
-
- virtual String doAXStringForRange(const PlainTextRange&) const;
- virtual IntRect doAXBoundsForRange(const PlainTextRange&) const;
-
- virtual void updateBackingStore();
- virtual String stringValueForMSAA() const;
- virtual String stringRoleForMSAA() const;
- virtual String nameForMSAA() const;
- virtual String descriptionForMSAA() const;
- virtual AccessibilityRole roleValueForMSAA() const;
- protected:
- RenderObject* m_renderer;
- AccessibilityRole m_ariaRole;
- mutable bool m_childrenDirty;
-
- void setRenderObject(RenderObject* renderer) { m_renderer = renderer; }
- void ariaLabeledByElements(Vector<Element*>& elements) const;
-
- virtual bool isDetached() const { return !m_renderer; }
- private:
- void ariaListboxSelectedChildren(AccessibilityChildrenVector&);
- void ariaListboxVisibleChildren(AccessibilityChildrenVector&);
- bool ariaIsHidden() const;
- bool isDescendantOfBarrenParent() const;
- bool isAllowedChildOfTree() const;
- bool hasTextAlternative() const;
- String positionalDescriptionForMSAA() const;
- Element* menuElementForMenuButton() const;
- Element* menuItemElementForMenu() const;
- AccessibilityRole determineAccessibilityRole();
- AccessibilityRole determineAriaRoleAttribute() const;
- bool isTabItemSelected() const;
- IntRect checkboxOrRadioRect() const;
- void addRadioButtonGroupMembers(AccessibilityChildrenVector& linkedUIElements) const;
- AccessibilityObject* internalLinkElement() const;
- AccessibilityObject* accessibilityImageMapHitTest(HTMLAreaElement*, const IntPoint&) const;
- AccessibilityObject* accessibilityParentForImageMap(HTMLMapElement* map) const;
- void ariaSelectedRows(AccessibilityChildrenVector&);
-
- bool elementAttributeValue(const QualifiedName&) const;
- void setElementAttributeValue(const QualifiedName&, bool);
-
- String accessibilityDescriptionForElements(Vector<Element*> &elements) const;
- void elementsFromAttribute(Vector<Element*>& elements, const QualifiedName& name) const;
-
- virtual const AtomicString& ariaLiveRegionStatus() const;
- virtual const AtomicString& ariaLiveRegionRelevant() const;
- virtual bool ariaLiveRegionAtomic() const;
- virtual bool ariaLiveRegionBusy() const;
-
- void setNeedsToUpdateChildren() const { m_childrenDirty = true; }
- bool needsToUpdateChildren() const { return m_childrenDirty; }
-
- mutable AccessibilityRole m_roleForMSAA;
- };
-
- } // namespace WebCore
- #endif // AccessibilityRenderObject_h