| /* |
| * Copyright (C) 2008, 2009, 2011 Apple Inc. All rights reserved. |
| * Copyright (C) 2008 Nuanti Ltd. |
| * |
| * 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 AccessibilityObject_h |
| #define AccessibilityObject_h |
| |
| #include "IntRect.h" |
| #include "VisiblePosition.h" |
| #include "VisibleSelection.h" |
| #include <wtf/Forward.h> |
| #include <wtf/RefPtr.h> |
| #include <wtf/Vector.h> |
| |
| #if PLATFORM(MAC) |
| #include <wtf/RetainPtr.h> |
| #elif PLATFORM(WIN) && !OS(WINCE) |
| #include "AccessibilityObjectWrapperWin.h" |
| #include "COMPtr.h" |
| #elif PLATFORM(CHROMIUM) |
| #include "AccessibilityObjectWrapper.h" |
| #endif |
| |
| typedef struct _NSRange NSRange; |
| |
| #ifdef __OBJC__ |
| @class AccessibilityObjectWrapper; |
| @class NSArray; |
| @class NSAttributedString; |
| @class NSData; |
| @class NSMutableAttributedString; |
| @class NSString; |
| @class NSValue; |
| @class NSView; |
| #else |
| class NSArray; |
| class NSAttributedString; |
| class NSData; |
| class NSMutableAttributedString; |
| class NSString; |
| class NSValue; |
| class NSView; |
| #if PLATFORM(GTK) |
| typedef struct _AtkObject AtkObject; |
| typedef struct _AtkObject AccessibilityObjectWrapper; |
| #else |
| class AccessibilityObjectWrapper; |
| #endif |
| #endif |
| |
| namespace WebCore { |
| |
| class AXObjectCache; |
| class Element; |
| class Frame; |
| class FrameView; |
| class HTMLAnchorElement; |
| class HTMLAreaElement; |
| class IntPoint; |
| class IntSize; |
| class Node; |
| class RenderObject; |
| class RenderListItem; |
| class VisibleSelection; |
| class Widget; |
| |
| typedef unsigned AXID; |
| |
| enum AccessibilityRole { |
| UnknownRole = 1, |
| ButtonRole, |
| RadioButtonRole, |
| CheckBoxRole, |
| SliderRole, |
| TabGroupRole, |
| TextFieldRole, |
| StaticTextRole, |
| TextAreaRole, |
| ScrollAreaRole, |
| PopUpButtonRole, |
| MenuButtonRole, |
| TableRole, |
| ApplicationRole, |
| GroupRole, |
| RadioGroupRole, |
| ListRole, |
| ScrollBarRole, |
| ValueIndicatorRole, |
| ImageRole, |
| MenuBarRole, |
| MenuRole, |
| MenuItemRole, |
| ColumnRole, |
| RowRole, |
| ToolbarRole, |
| BusyIndicatorRole, |
| ProgressIndicatorRole, |
| WindowRole, |
| DrawerRole, |
| SystemWideRole, |
| OutlineRole, |
| IncrementorRole, |
| BrowserRole, |
| ComboBoxRole, |
| SplitGroupRole, |
| SplitterRole, |
| ColorWellRole, |
| GrowAreaRole, |
| SheetRole, |
| HelpTagRole, |
| MatteRole, |
| RulerRole, |
| RulerMarkerRole, |
| LinkRole, |
| DisclosureTriangleRole, |
| GridRole, |
| CellRole, |
| ColumnHeaderRole, |
| RowHeaderRole, |
| // AppKit includes SortButtonRole but it is misnamed and really a subrole of ButtonRole so we do not include it here. |
| |
| // WebCore-specific roles |
| WebCoreLinkRole, |
| ImageMapLinkRole, |
| ImageMapRole, |
| ListMarkerRole, |
| WebAreaRole, |
| HeadingRole, |
| ListBoxRole, |
| ListBoxOptionRole, |
| TableHeaderContainerRole, |
| DefinitionListTermRole, |
| DefinitionListDefinitionRole, |
| AnnotationRole, |
| SliderThumbRole, |
| IgnoredRole, |
| PresentationalRole, |
| TabRole, |
| TabListRole, |
| TabPanelRole, |
| TreeRole, |
| TreeGridRole, |
| TreeItemRole, |
| DirectoryRole, |
| EditableTextRole, |
| ListItemRole, |
| MenuListPopupRole, |
| MenuListOptionRole, |
| ParagraphRole, |
| LabelRole, |
| DivRole, |
| FormRole, |
| |
| // ARIA Grouping roles |
| LandmarkApplicationRole, |
| LandmarkBannerRole, |
| LandmarkComplementaryRole, |
| LandmarkContentInfoRole, |
| LandmarkMainRole, |
| LandmarkNavigationRole, |
| LandmarkSearchRole, |
| |
| ApplicationAlertRole, |
| ApplicationAlertDialogRole, |
| ApplicationDialogRole, |
| ApplicationLogRole, |
| ApplicationMarqueeRole, |
| ApplicationStatusRole, |
| ApplicationTimerRole, |
| |
| DocumentRole, |
| DocumentArticleRole, |
| DocumentMathRole, |
| DocumentNoteRole, |
| DocumentRegionRole, |
| |
| UserInterfaceTooltipRole |
| }; |
| |
| enum AccessibilityOrientation { |
| AccessibilityOrientationVertical, |
| AccessibilityOrientationHorizontal, |
| }; |
| |
| enum AccessibilityObjectInclusion { |
| IncludeObject, |
| IgnoreObject, |
| DefaultBehavior, |
| }; |
| |
| enum AccessibilityButtonState { |
| ButtonStateOff = 0, |
| ButtonStateOn, |
| ButtonStateMixed, |
| }; |
| |
| enum AccessibilitySortDirection { |
| SortDirectionNone, |
| SortDirectionAscending, |
| SortDirectionDescending, |
| }; |
| |
| struct VisiblePositionRange { |
| |
| VisiblePosition start; |
| VisiblePosition end; |
| |
| VisiblePositionRange() {} |
| |
| VisiblePositionRange(const VisiblePosition& s, const VisiblePosition& e) |
| : start(s) |
| , end(e) |
| { } |
| |
| bool isNull() const { return start.isNull() || end.isNull(); } |
| }; |
| |
| struct PlainTextRange { |
| |
| unsigned start; |
| unsigned length; |
| |
| PlainTextRange() |
| : start(0) |
| , length(0) |
| { } |
| |
| PlainTextRange(unsigned s, unsigned l) |
| : start(s) |
| , length(l) |
| { } |
| |
| bool isNull() const { return !start && !length; } |
| }; |
| |
| class AccessibilityObject : public RefCounted<AccessibilityObject> { |
| protected: |
| AccessibilityObject(); |
| public: |
| virtual ~AccessibilityObject(); |
| virtual void detach(); |
| |
| typedef Vector<RefPtr<AccessibilityObject> > AccessibilityChildrenVector; |
| |
| virtual bool isAccessibilityRenderObject() const { return false; } |
| virtual bool isAccessibilityScrollbar() const { return false; } |
| virtual bool isAccessibilityScrollView() const { return false; } |
| |
| virtual bool isAnchor() const { return false; } |
| virtual bool isAttachment() const { return false; } |
| virtual bool isHeading() const { return false; } |
| virtual bool isLink() const { return false; } |
| virtual bool isImage() const { return false; } |
| virtual bool isNativeImage() const { return false; } |
| virtual bool isImageButton() const { return false; } |
| virtual bool isPasswordField() const { return false; } |
| virtual bool isNativeTextControl() const { return false; } |
| virtual bool isWebArea() const { return false; } |
| virtual bool isCheckbox() const { return roleValue() == CheckBoxRole; } |
| virtual bool isRadioButton() const { return roleValue() == RadioButtonRole; } |
| virtual bool isListBox() const { return roleValue() == ListBoxRole; } |
| virtual bool isMediaTimeline() const { return false; } |
| virtual bool isMenuRelated() const { return false; } |
| virtual bool isMenu() const { return false; } |
| virtual bool isMenuBar() const { return false; } |
| virtual bool isMenuButton() const { return false; } |
| virtual bool isMenuItem() const { return false; } |
| virtual bool isFileUploadButton() const { return false; } |
| virtual bool isInputImage() const { return false; } |
| virtual bool isProgressIndicator() const { return false; } |
| virtual bool isSlider() const { return false; } |
| virtual bool isInputSlider() const { return false; } |
| virtual bool isControl() const { return false; } |
| virtual bool isList() const { return false; } |
| virtual bool isAccessibilityTable() const { return false; } |
| virtual bool isDataTable() const { return false; } |
| virtual bool isTableRow() const { return false; } |
| virtual bool isTableColumn() const { return false; } |
| virtual bool isTableCell() const { return false; } |
| virtual bool isFieldset() const { return false; } |
| virtual bool isGroup() const { return false; } |
| virtual bool isARIATreeGridRow() const { return false; } |
| virtual bool isImageMapLink() const { return false; } |
| virtual bool isMenuList() const { return false; } |
| virtual bool isMenuListPopup() const { return false; } |
| virtual bool isMenuListOption() const { return false; } |
| bool isTextControl() const { return roleValue() == TextAreaRole || roleValue() == TextFieldRole; } |
| bool isTabList() const { return roleValue() == TabListRole; } |
| bool isTabItem() const { return roleValue() == TabRole; } |
| bool isRadioGroup() const { return roleValue() == RadioGroupRole; } |
| bool isComboBox() const { return roleValue() == ComboBoxRole; } |
| bool isTree() const { return roleValue() == TreeRole; } |
| bool isTreeItem() const { return roleValue() == TreeItemRole; } |
| bool isScrollbar() const { return roleValue() == ScrollBarRole; } |
| bool isButton() const { return roleValue() == ButtonRole; } |
| bool isListItem() const { return roleValue() == ListItemRole; } |
| bool isCheckboxOrRadio() const { return isCheckbox() || isRadioButton(); } |
| bool isScrollView() const { return roleValue() == ScrollAreaRole; } |
| |
| virtual bool isChecked() const { return false; } |
| virtual bool isEnabled() const { return false; } |
| virtual bool isSelected() const { return false; } |
| virtual bool isFocused() const { return false; } |
| virtual bool isHovered() const { return false; } |
| virtual bool isIndeterminate() const { return false; } |
| virtual bool isLoaded() const { return false; } |
| virtual bool isMultiSelectable() const { return false; } |
| virtual bool isOffScreen() const { return false; } |
| virtual bool isPressed() const { return false; } |
| virtual bool isReadOnly() const { return false; } |
| virtual bool isVisited() const { return false; } |
| virtual bool isRequired() const { return false; } |
| virtual bool isLinked() const { return false; } |
| virtual bool isExpanded() const; |
| virtual bool isVisible() const { return true; } |
| virtual bool isCollapsed() const { return false; } |
| virtual void setIsExpanded(bool) { } |
| |
| virtual bool canSetFocusAttribute() const { return false; } |
| virtual bool canSetTextRangeAttributes() const { return false; } |
| virtual bool canSetValueAttribute() const { return false; } |
| virtual bool canSetNumericValue() const { return false; } |
| virtual bool canSetSelectedAttribute() const { return false; } |
| virtual bool canSetSelectedChildrenAttribute() const { return false; } |
| virtual bool canSetExpandedAttribute() const { return false; } |
| |
| // A programmatic way to set a name on an AccessibleObject. |
| virtual void setAccessibleName(String&) { } |
| |
| virtual Node* node() const { return 0; } |
| virtual RenderObject* renderer() const { return 0; } |
| virtual bool accessibilityIsIgnored() const { return true; } |
| |
| virtual int headingLevel() const { return 0; } |
| virtual AccessibilityButtonState checkboxOrRadioValue() const; |
| virtual String valueDescription() const { return String(); } |
| virtual float valueForRange() const { return 0.0f; } |
| virtual float maxValueForRange() const { return 0.0f; } |
| virtual float minValueForRange() const { return 0.0f; } |
| virtual AccessibilityObject* selectedRadioButton() { return 0; } |
| virtual AccessibilityObject* selectedTabItem() { return 0; } |
| virtual int layoutCount() const { return 0; } |
| virtual double estimatedLoadingProgress() const { return 0; } |
| static bool isARIAControl(AccessibilityRole); |
| static bool isARIAInput(AccessibilityRole); |
| virtual bool supportsARIAOwns() const { return false; } |
| virtual void ariaOwnsElements(AccessibilityChildrenVector&) const { } |
| virtual bool supportsARIAFlowTo() const { return false; } |
| virtual void ariaFlowToElements(AccessibilityChildrenVector&) const { } |
| virtual bool ariaHasPopup() const { return false; } |
| bool ariaIsMultiline() const; |
| virtual const AtomicString& invalidStatus() const; |
| bool supportsARIAExpanded() const; |
| AccessibilitySortDirection sortDirection() const; |
| |
| // ARIA drag and drop |
| virtual bool supportsARIADropping() const { return false; } |
| virtual bool supportsARIADragging() const { return false; } |
| virtual bool isARIAGrabbed() { return false; } |
| virtual void setARIAGrabbed(bool) { } |
| virtual void determineARIADropEffects(Vector<String>&) { } |
| |
| // Called on the root AX object to return the deepest available element. |
| virtual AccessibilityObject* accessibilityHitTest(const IntPoint&) const { return 0; } |
| // Called on the AX object after the render tree determines which is the right AccessibilityRenderObject. |
| virtual AccessibilityObject* elementAccessibilityHitTest(const IntPoint&) const; |
| |
| virtual AccessibilityObject* focusedUIElement() const; |
| |
| virtual AccessibilityObject* firstChild() const { return 0; } |
| virtual AccessibilityObject* lastChild() const { return 0; } |
| virtual AccessibilityObject* previousSibling() const { return 0; } |
| virtual AccessibilityObject* nextSibling() const { return 0; } |
| virtual AccessibilityObject* parentObject() const = 0; |
| virtual AccessibilityObject* parentObjectUnignored() const; |
| virtual AccessibilityObject* parentObjectIfExists() const { return 0; } |
| static AccessibilityObject* firstAccessibleObjectFromNode(const Node*); |
| |
| virtual AccessibilityObject* observableObject() const { return 0; } |
| virtual void linkedUIElements(AccessibilityChildrenVector&) const { } |
| virtual AccessibilityObject* titleUIElement() const { return 0; } |
| virtual bool exposesTitleUIElement() const { return true; } |
| virtual AccessibilityObject* correspondingLabelForControlElement() const { return 0; } |
| virtual AccessibilityObject* correspondingControlForLabelElement() const { return 0; } |
| virtual AccessibilityObject* scrollBar(AccessibilityOrientation) const { return 0; } |
| |
| virtual AccessibilityRole ariaRoleAttribute() const { return UnknownRole; } |
| virtual bool isPresentationalChildOfAriaRole() const { return false; } |
| virtual bool ariaRoleHasPresentationalChildren() const { return false; } |
| |
| void setRoleValue(AccessibilityRole role) { m_role = role; } |
| virtual AccessibilityRole roleValue() const { return m_role; } |
| virtual String ariaLabeledByAttribute() const { return String(); } |
| virtual String ariaDescribedByAttribute() const { return String(); } |
| virtual String accessibilityDescription() const { return String(); } |
| |
| virtual AXObjectCache* axObjectCache() const; |
| AXID axObjectID() const { return m_id; } |
| void setAXObjectID(AXID axObjectID) { m_id = axObjectID; } |
| |
| static AccessibilityObject* anchorElementForNode(Node*); |
| virtual Element* anchorElement() const { return 0; } |
| virtual Element* actionElement() const { return 0; } |
| virtual IntRect boundingBoxRect() const { return IntRect(); } |
| virtual IntRect elementRect() const = 0; |
| virtual IntSize size() const { return elementRect().size(); } |
| virtual IntPoint clickPoint() const; |
| |
| virtual PlainTextRange selectedTextRange() const { return PlainTextRange(); } |
| unsigned selectionStart() const { return selectedTextRange().start; } |
| unsigned selectionEnd() const { return selectedTextRange().length; } |
| |
| virtual KURL url() const { return KURL(); } |
| virtual VisibleSelection selection() const { return VisibleSelection(); } |
| virtual String stringValue() const { return String(); } |
| virtual String title() const { return String(); } |
| virtual String helpText() const { return String(); } |
| virtual String textUnderElement() const { return String(); } |
| virtual String text() const { return String(); } |
| virtual int textLength() const { return 0; } |
| virtual String selectedText() const { return String(); } |
| virtual const AtomicString& accessKey() const { return nullAtom; } |
| const String& actionVerb() const; |
| virtual Widget* widget() const { return 0; } |
| virtual Widget* widgetForAttachmentView() const { return 0; } |
| virtual Document* document() const; |
| virtual FrameView* topDocumentFrameView() const { return 0; } |
| virtual FrameView* documentFrameView() const; |
| String language() const; |
| virtual unsigned hierarchicalLevel() const { return 0; } |
| const AtomicString& placeholderValue() const; |
| |
| virtual void setFocused(bool) { } |
| virtual void setSelectedText(const String&) { } |
| virtual void setSelectedTextRange(const PlainTextRange&) { } |
| virtual void setValue(const String&) { } |
| virtual void setValue(float) { } |
| virtual void setSelected(bool) { } |
| virtual void setSelectedRows(AccessibilityChildrenVector&) { } |
| |
| virtual void makeRangeVisible(const PlainTextRange&) { } |
| virtual bool press() const; |
| bool performDefaultAction() const { return press(); } |
| |
| virtual AccessibilityOrientation orientation() const; |
| virtual void increment() { } |
| virtual void decrement() { } |
| |
| virtual void childrenChanged() { } |
| virtual void contentChanged() { } |
| virtual const AccessibilityChildrenVector& children() { return m_children; } |
| virtual void addChildren() { } |
| virtual bool canHaveChildren() const { return true; } |
| virtual bool hasChildren() const { return m_haveChildren; } |
| virtual void updateChildrenIfNecessary(); |
| virtual void selectedChildren(AccessibilityChildrenVector&) { } |
| virtual void visibleChildren(AccessibilityChildrenVector&) { } |
| virtual void tabChildren(AccessibilityChildrenVector&) { } |
| virtual bool shouldFocusActiveDescendant() const { return false; } |
| virtual AccessibilityObject* activeDescendant() const { return 0; } |
| virtual void handleActiveDescendantChanged() { } |
| virtual void handleAriaExpandedChanged() { } |
| |
| static AccessibilityRole ariaRoleToWebCoreRole(const String&); |
| const AtomicString& getAttribute(const QualifiedName&) const; |
| |
| virtual VisiblePositionRange visiblePositionRange() const { return VisiblePositionRange(); } |
| virtual VisiblePositionRange visiblePositionRangeForLine(unsigned) const { return VisiblePositionRange(); } |
| |
| VisiblePositionRange visiblePositionRangeForUnorderedPositions(const VisiblePosition&, const VisiblePosition&) const; |
| VisiblePositionRange positionOfLeftWord(const VisiblePosition&) const; |
| VisiblePositionRange positionOfRightWord(const VisiblePosition&) const; |
| VisiblePositionRange leftLineVisiblePositionRange(const VisiblePosition&) const; |
| VisiblePositionRange rightLineVisiblePositionRange(const VisiblePosition&) const; |
| VisiblePositionRange sentenceForPosition(const VisiblePosition&) const; |
| VisiblePositionRange paragraphForPosition(const VisiblePosition&) const; |
| VisiblePositionRange styleRangeForPosition(const VisiblePosition&) const; |
| VisiblePositionRange visiblePositionRangeForRange(const PlainTextRange&) const; |
| |
| String stringForVisiblePositionRange(const VisiblePositionRange&) const; |
| virtual IntRect boundsForVisiblePositionRange(const VisiblePositionRange&) const { return IntRect(); } |
| int lengthForVisiblePositionRange(const VisiblePositionRange&) const; |
| virtual void setSelectedVisiblePositionRange(const VisiblePositionRange&) const { } |
| |
| virtual VisiblePosition visiblePositionForPoint(const IntPoint&) const { return VisiblePosition(); } |
| VisiblePosition nextVisiblePosition(const VisiblePosition& visiblePos) const { return visiblePos.next(); } |
| VisiblePosition previousVisiblePosition(const VisiblePosition& visiblePos) const { return visiblePos.previous(); } |
| VisiblePosition nextWordEnd(const VisiblePosition&) const; |
| VisiblePosition previousWordStart(const VisiblePosition&) const; |
| VisiblePosition nextLineEndPosition(const VisiblePosition&) const; |
| VisiblePosition previousLineStartPosition(const VisiblePosition&) const; |
| VisiblePosition nextSentenceEndPosition(const VisiblePosition&) const; |
| VisiblePosition previousSentenceStartPosition(const VisiblePosition&) const; |
| VisiblePosition nextParagraphEndPosition(const VisiblePosition&) const; |
| VisiblePosition previousParagraphStartPosition(const VisiblePosition&) const; |
| virtual VisiblePosition visiblePositionForIndex(unsigned, bool /*lastIndexOK */) const { return VisiblePosition(); } |
| |
| virtual VisiblePosition visiblePositionForIndex(int) const { return VisiblePosition(); } |
| virtual int indexForVisiblePosition(const VisiblePosition&) const { return 0; } |
| |
| AccessibilityObject* accessibilityObjectForPosition(const VisiblePosition&) const; |
| int lineForPosition(const VisiblePosition&) const; |
| PlainTextRange plainTextRangeForVisiblePositionRange(const VisiblePositionRange&) const; |
| virtual int index(const VisiblePosition&) const { return -1; } |
| |
| virtual PlainTextRange doAXRangeForLine(unsigned) const { return PlainTextRange(); } |
| PlainTextRange doAXRangeForPosition(const IntPoint&) const; |
| virtual PlainTextRange doAXRangeForIndex(unsigned) const { return PlainTextRange(); } |
| PlainTextRange doAXStyleRangeForIndex(unsigned) const; |
| |
| virtual String doAXStringForRange(const PlainTextRange&) const { return String(); } |
| virtual IntRect doAXBoundsForRange(const PlainTextRange&) const { return IntRect(); } |
| String listMarkerTextForNodeAndPosition(Node*, const VisiblePosition&) const; |
| |
| unsigned doAXLineForIndex(unsigned); |
| |
| virtual String stringValueForMSAA() const { return String(); } |
| virtual String stringRoleForMSAA() const { return String(); } |
| virtual String nameForMSAA() const { return String(); } |
| virtual String descriptionForMSAA() const { return String(); } |
| virtual AccessibilityRole roleValueForMSAA() const { return roleValue(); } |
| |
| // Used by an ARIA tree to get all its rows. |
| void ariaTreeRows(AccessibilityChildrenVector&); |
| // Used by an ARIA tree item to get all of its direct rows that it can disclose. |
| void ariaTreeItemDisclosedRows(AccessibilityChildrenVector&); |
| // Used by an ARIA tree item to get only its content, and not its child tree items and groups. |
| void ariaTreeItemContent(AccessibilityChildrenVector&); |
| |
| // ARIA live-region features. |
| bool supportsARIALiveRegion() const; |
| bool isInsideARIALiveRegion() const; |
| virtual const AtomicString& ariaLiveRegionStatus() const { return nullAtom; } |
| virtual const AtomicString& ariaLiveRegionRelevant() const { return nullAtom; } |
| virtual bool ariaLiveRegionAtomic() const { return false; } |
| virtual bool ariaLiveRegionBusy() const { return false; } |
| |
| bool supportsARIAAttributes() const; |
| |
| // CSS3 Speech properties. |
| virtual ESpeak speakProperty() const { return SpeakNormal; } |
| |
| #if HAVE(ACCESSIBILITY) |
| #if PLATFORM(GTK) |
| AccessibilityObjectWrapper* wrapper() const; |
| void setWrapper(AccessibilityObjectWrapper*); |
| #else |
| AccessibilityObjectWrapper* wrapper() const { return m_wrapper.get(); } |
| void setWrapper(AccessibilityObjectWrapper* wrapper) |
| { |
| m_wrapper = wrapper; |
| } |
| #endif |
| #endif |
| |
| #if HAVE(ACCESSIBILITY) |
| // a platform-specific method for determining if an attachment is ignored |
| bool accessibilityIgnoreAttachment() const; |
| // gives platforms the opportunity to indicate if and how an object should be included |
| AccessibilityObjectInclusion accessibilityPlatformIncludesObject() const; |
| #else |
| bool accessibilityIgnoreAttachment() const { return true; } |
| AccessibilityObjectInclusion accessibilityPlatformIncludesObject() const { return DefaultBehavior; } |
| #endif |
| |
| // allows for an AccessibilityObject to update its render tree or perform |
| // other operations update type operations |
| virtual void updateBackingStore() { } |
| |
| protected: |
| AXID m_id; |
| AccessibilityChildrenVector m_children; |
| mutable bool m_haveChildren; |
| AccessibilityRole m_role; |
| |
| virtual void clearChildren(); |
| virtual bool isDetached() const { return true; } |
| |
| #if PLATFORM(GTK) |
| bool allowsTextRanges() const; |
| unsigned getLengthForTextRange() const; |
| #else |
| bool allowsTextRanges() const { return isTextControl(); } |
| unsigned getLengthForTextRange() const { return text().length(); } |
| #endif |
| |
| #if PLATFORM(MAC) |
| RetainPtr<AccessibilityObjectWrapper> m_wrapper; |
| #elif PLATFORM(WIN) && !OS(WINCE) |
| COMPtr<AccessibilityObjectWrapper> m_wrapper; |
| #elif PLATFORM(GTK) |
| AtkObject* m_wrapper; |
| #elif PLATFORM(CHROMIUM) |
| RefPtr<AccessibilityObjectWrapper> m_wrapper; |
| #endif |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // AccessibilityObject_h |
