| /* |
| * 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 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 "AccessibilityObjectInterface.h" |
| #include "FloatQuad.h" |
| #include "LayoutRect.h" |
| #include "Path.h" |
| #include "Range.h" |
| #include <wtf/Forward.h> |
| #include <wtf/Function.h> |
| #include <wtf/RefPtr.h> |
| #include <wtf/Vector.h> |
| |
| #if PLATFORM(COCOA) |
| #include <wtf/RetainPtr.h> |
| #endif |
| |
| #if USE(ATK) |
| #include <wtf/glib/GRefPtr.h> |
| #endif |
| |
| #if PLATFORM(COCOA) |
| |
| OBJC_CLASS NSArray; |
| OBJC_CLASS NSAttributedString; |
| OBJC_CLASS NSData; |
| OBJC_CLASS NSMutableAttributedString; |
| OBJC_CLASS NSString; |
| OBJC_CLASS NSValue; |
| OBJC_CLASS NSView; |
| |
| #endif |
| |
| namespace WebCore { |
| |
| class AccessibilityObject; |
| class IntPoint; |
| class IntSize; |
| class ScrollableArea; |
| |
| struct AccessibilityText { |
| String text; |
| AccessibilityTextSource textSource; |
| |
| AccessibilityText(const String& t, const AccessibilityTextSource& s) |
| : text(t) |
| , textSource(s) |
| { } |
| }; |
| |
| bool nodeHasPresentationRole(Node*); |
| |
| class AccessibilityObject : public AXCoreObject { |
| public: |
| virtual ~AccessibilityObject(); |
| |
| // After constructing an AccessibilityObject, it must be given a |
| // unique ID, then added to AXObjectCache, and finally init() must |
| // be called last. |
| void setObjectID(AXID id) override { m_id = id; } |
| void init() override { } |
| |
| bool isDetached() const override; |
| |
| bool isAccessibilityNodeObject() const override { return false; } |
| bool isAccessibilityRenderObject() const override { return false; } |
| bool isAccessibilityScrollbar() const override { return false; } |
| bool isAccessibilityScrollViewInstance() const override { return false; } |
| bool isAccessibilitySVGRoot() const override { return false; } |
| bool isAccessibilitySVGElement() const override { return false; } |
| bool isAccessibilityTableInstance() const override { return false; } |
| bool isAccessibilityTableColumnInstance() const override { return false; } |
| bool isAccessibilityProgressIndicatorInstance() const override { return false; } |
| bool isAXIsolatedObjectInstance() const override { return false; } |
| |
| bool isAttachmentElement() const override { return false; } |
| bool isHeading() const override { return false; } |
| bool isLink() const override { return false; } |
| bool isNativeImage() const override { return false; } |
| bool isImageButton() const override { return false; } |
| bool isPasswordField() const override { return false; } |
| bool isContainedByPasswordField() const override; |
| AccessibilityObject* passwordFieldOrContainingPasswordField() override { return nullptr; } |
| bool isNativeTextControl() const override { return false; } |
| bool isSearchField() const override { return false; } |
| bool isNativeListBox() const override { return false; } |
| bool isListBoxOption() const override { return false; } |
| bool isAttachment() const override { return false; } |
| bool isMediaTimeline() const override { return false; } |
| bool isMenuRelated() const override { return false; } |
| bool isMenu() const override { return false; } |
| bool isMenuBar() const override { return false; } |
| bool isMenuButton() const override { return false; } |
| bool isMenuItem() const override { return false; } |
| bool isFileUploadButton() const override { return false; } |
| bool isInputImage() const override { return false; } |
| bool isProgressIndicator() const override { return false; } |
| bool isSlider() const override { return false; } |
| bool isSliderThumb() const override { return false; } |
| bool isInputSlider() const override { return false; } |
| bool isControl() const override { return false; } |
| bool isLabel() const override { return false; } |
| |
| bool isList() const override { return false; } |
| bool isUnorderedList() const override { return false; } |
| bool isOrderedList() const override { return false; } |
| bool isDescriptionList() const override { return false; } |
| |
| // Table support. |
| bool isTable() const override { return false; } |
| bool isExposable() const override { return true; } |
| bool isDataTable() const override { return false; } |
| int tableLevel() const override { return 0; } |
| bool supportsSelectedRows() const override { return false; } |
| AccessibilityChildrenVector columns() override { return AccessibilityChildrenVector(); } |
| AccessibilityChildrenVector rows() override { return AccessibilityChildrenVector(); } |
| unsigned columnCount() override { return 0; } |
| unsigned rowCount() override { return 0; } |
| AccessibilityChildrenVector cells() override { return AccessibilityChildrenVector(); } |
| AXCoreObject* cellForColumnAndRow(unsigned, unsigned) override { return nullptr; } |
| AccessibilityChildrenVector columnHeaders() override { return AccessibilityChildrenVector(); } |
| AccessibilityChildrenVector rowHeaders() override { return AccessibilityChildrenVector(); } |
| AccessibilityChildrenVector visibleRows() override { return AccessibilityChildrenVector(); } |
| AXCoreObject* headerContainer() override { return nullptr; } |
| int axColumnCount() const override { return 0; } |
| int axRowCount() const override { return 0; } |
| |
| // Table cell support. |
| bool isTableCell() const override { return false; } |
| // Returns the start location and row span of the cell. |
| std::pair<unsigned, unsigned> rowIndexRange() const override { return { 0, 1 }; } |
| // Returns the start location and column span of the cell. |
| std::pair<unsigned, unsigned> columnIndexRange() const override { return { 0, 1 }; } |
| bool isColumnHeaderCell() const override { return false; } |
| bool isRowHeaderCell() const override { return false; } |
| int axColumnIndex() const override { return -1; } |
| int axRowIndex() const override { return -1; } |
| |
| // Table column support. |
| bool isTableColumn() const override { return false; } |
| unsigned columnIndex() const override { return 0; } |
| AXCoreObject* columnHeader() override { return nullptr; } |
| |
| // Table row support. |
| bool isTableRow() const override { return false; } |
| unsigned rowIndex() const override { return 0; } |
| |
| // ARIA tree/grid row support. |
| bool isARIATreeGridRow() const override { return false; } |
| AccessibilityChildrenVector disclosedRows() override; // ARIATreeItem implementation. AccessibilityARIAGridRow overrides this method. |
| AXCoreObject* disclosedByRow() const override { return nullptr; } |
| |
| bool isFieldset() const override { return false; } |
| bool isGroup() const override { return false; } |
| bool isImageMapLink() const override { return false; } |
| bool isMenuList() const override { return false; } |
| bool isMenuListPopup() const override { return false; } |
| bool isMenuListOption() const override { return false; } |
| bool isNativeSpinButton() const override { return false; } |
| AXCoreObject* incrementButton() override { return nullptr; } |
| AXCoreObject* decrementButton() override { return nullptr; } |
| bool isSpinButtonPart() const override { return false; } |
| bool isIncrementor() const override { return false; } |
| bool isMockObject() const override { return false; } |
| virtual bool isMediaControlLabel() const { return false; } |
| bool isMediaObject() const override { return false; } |
| bool isTextControl() const override; |
| bool isARIATextControl() const override; |
| bool isNonNativeTextControl() const override; |
| bool isButton() const override; |
| bool isLandmark() const override; |
| bool isRangeControl() const override; |
| bool isMeter() const override; |
| bool isStyleFormatGroup() const override; |
| bool isFigureElement() const override; |
| bool isKeyboardFocusable() const override; |
| bool isOutput() const override; |
| |
| bool isChecked() const override { return false; } |
| bool isEnabled() const override { return false; } |
| bool isSelected() const override { return false; } |
| bool isFocused() const override { return false; } |
| bool isHovered() const override { return false; } |
| bool isIndeterminate() const override { return false; } |
| bool isLoaded() const override { return false; } |
| bool isMultiSelectable() const override { return false; } |
| bool isOffScreen() const override { return false; } |
| bool isPressed() const override { return false; } |
| bool isUnvisited() const override { return false; } |
| bool isVisited() const override { return false; } |
| bool isRequired() const override { return false; } |
| bool supportsRequiredAttribute() const override { return false; } |
| bool isLinked() const override { return false; } |
| bool isExpanded() const override; |
| bool isVisible() const override { return true; } |
| bool isCollapsed() const override { return false; } |
| void setIsExpanded(bool) override { } |
| FloatRect relativeFrame() const override; |
| FloatRect convertFrameToSpace(const FloatRect&, AccessibilityConversionSpace) const override; |
| |
| // In a multi-select list, many items can be selected but only one is active at a time. |
| bool isSelectedOptionActive() const override { return false; } |
| |
| bool hasBoldFont() const override { return false; } |
| bool hasItalicFont() const override { return false; } |
| bool hasMisspelling() const override; |
| RefPtr<Range> getMisspellingRange(RefPtr<Range> const& start, AccessibilitySearchDirection) const override; |
| bool hasPlainText() const override { return false; } |
| bool hasSameFont(const AXCoreObject&) const override { return false; } |
| bool hasSameFontColor(const AXCoreObject&) const override { return false; } |
| bool hasSameStyle(const AXCoreObject&) const override { return false; } |
| bool hasUnderline() const override { return false; } |
| bool hasHighlighting() const override; |
| |
| bool supportsDatetimeAttribute() const override; |
| String datetimeAttributeValue() const override; |
| |
| bool canSetFocusAttribute() const override { return false; } |
| bool canSetTextRangeAttributes() const override { return false; } |
| bool canSetValueAttribute() const override { return false; } |
| bool canSetNumericValue() const override { return false; } |
| bool canSetSelectedAttribute() const override { return false; } |
| bool canSetSelectedChildrenAttribute() const override { return false; } |
| bool canSetExpandedAttribute() const override { return false; } |
| |
| Element* element() const override; |
| Node* node() const override { return nullptr; } |
| RenderObject* renderer() const override { return nullptr; } |
| bool accessibilityIsIgnored() const override; |
| AccessibilityObjectInclusion defaultObjectInclusion() const override; |
| bool accessibilityIsIgnoredByDefault() const override; |
| |
| bool isShowingValidationMessage() const override; |
| String validationMessage() const override; |
| |
| unsigned blockquoteLevel() const override; |
| int headingLevel() const override { return 0; } |
| AccessibilityButtonState checkboxOrRadioValue() const override; |
| String valueDescription() const override { return String(); } |
| float valueForRange() const override { return 0.0f; } |
| float maxValueForRange() const override { return 0.0f; } |
| float minValueForRange() const override { return 0.0f; } |
| float stepValueForRange() const override { return 0.0f; } |
| AXCoreObject* selectedRadioButton() override { return nullptr; } |
| AXCoreObject* selectedTabItem() override { return nullptr; } |
| AXCoreObject* selectedListItem() override; |
| int layoutCount() const override { return 0; } |
| double estimatedLoadingProgress() const override { return 0; } |
| WEBCORE_EXPORT static bool isARIAControl(AccessibilityRole); |
| WEBCORE_EXPORT static bool isARIAInput(AccessibilityRole); |
| |
| bool supportsARIAOwns() const override { return false; } |
| bool isActiveDescendantOfFocusedContainer() const override; |
| void ariaActiveDescendantReferencingElements(AccessibilityChildrenVector&) const override; |
| void ariaControlsElements(AccessibilityChildrenVector&) const override; |
| void ariaControlsReferencingElements(AccessibilityChildrenVector&) const override; |
| void ariaDescribedByElements(AccessibilityChildrenVector&) const override; |
| void ariaDescribedByReferencingElements(AccessibilityChildrenVector&) const override; |
| void ariaDetailsElements(AccessibilityChildrenVector&) const override; |
| void ariaDetailsReferencingElements(AccessibilityChildrenVector&) const override; |
| void ariaErrorMessageElements(AccessibilityChildrenVector&) const override; |
| void ariaErrorMessageReferencingElements(AccessibilityChildrenVector&) const override; |
| void ariaFlowToElements(AccessibilityChildrenVector&) const override; |
| void ariaFlowToReferencingElements(AccessibilityChildrenVector&) const override; |
| void ariaLabelledByElements(AccessibilityChildrenVector&) const override; |
| void ariaLabelledByReferencingElements(AccessibilityChildrenVector&) const override; |
| void ariaOwnsElements(AccessibilityChildrenVector&) const override; |
| void ariaOwnsReferencingElements(AccessibilityChildrenVector&) const override; |
| |
| bool hasPopup() const override { return false; } |
| String popupValue() const override; |
| bool hasDatalist() const override; |
| bool supportsHasPopup() const override; |
| bool pressedIsPresent() const override; |
| bool ariaIsMultiline() const override; |
| String invalidStatus() const override; |
| bool supportsPressed() const override; |
| bool supportsExpanded() const override; |
| bool supportsChecked() const override; |
| AccessibilitySortDirection sortDirection() const override; |
| bool canvasHasFallbackContent() const override { return false; } |
| bool supportsRangeValue() const override; |
| String identifierAttribute() const override; |
| String linkRelValue() const override; |
| void classList(Vector<String>&) const override; |
| AccessibilityCurrentState currentState() const override; |
| String currentValue() const override; |
| bool supportsCurrent() const override; |
| const String keyShortcutsValue() const override; |
| |
| // This function checks if the object should be ignored when there's a modal dialog displayed. |
| bool ignoredFromModalPresence() const override; |
| bool isModalDescendant(Node*) const override; |
| bool isModalNode() const override; |
| |
| bool supportsSetSize() const override; |
| bool supportsPosInSet() const override; |
| int setSize() const override; |
| int posInSet() const override; |
| |
| // ARIA drag and drop |
| bool supportsDropping() const override { return false; } |
| bool supportsDragging() const override { return false; } |
| bool isGrabbed() override { return false; } |
| void setARIAGrabbed(bool) override { } |
| Vector<String> determineDropEffects() const override { return { }; } |
| |
| // Called on the root AX object to return the deepest available element. |
| AXCoreObject* accessibilityHitTest(const IntPoint&) const override { return nullptr; } |
| // Called on the AX object after the render tree determines which is the right AccessibilityRenderObject. |
| AXCoreObject* elementAccessibilityHitTest(const IntPoint&) const override; |
| |
| AXCoreObject* focusedUIElement() const override; |
| |
| AccessibilityObject* firstChild() const override { return nullptr; } |
| AccessibilityObject* lastChild() const override { return nullptr; } |
| AccessibilityObject* previousSibling() const override { return nullptr; } |
| AccessibilityObject* nextSibling() const override { return nullptr; } |
| AccessibilityObject* nextSiblingUnignored(int limit) const override; |
| AccessibilityObject* previousSiblingUnignored(int limit) const override; |
| AccessibilityObject* parentObject() const override { return nullptr; } |
| AXCoreObject* parentObjectUnignored() const override; |
| AccessibilityObject* parentObjectIfExists() const override { return nullptr; } |
| static AccessibilityObject* firstAccessibleObjectFromNode(const Node*); |
| void findMatchingObjects(AccessibilitySearchCriteria*, AccessibilityChildrenVector&) override; |
| bool isDescendantOfBarrenParent() const override { return false; } |
| |
| bool isDescendantOfRole(AccessibilityRole) const override; |
| |
| // Text selection |
| private: |
| RefPtr<Range> rangeOfStringClosestToRangeInDirection(Range*, AccessibilitySearchDirection, Vector<String> const&) const; |
| Optional<SimpleRange> selectionRange() const; |
| RefPtr<Range> findTextRange(Vector<String> const& searchStrings, RefPtr<Range> const& start, AccessibilitySearchTextDirection) const; |
| public: |
| Vector<RefPtr<Range>> findTextRanges(AccessibilitySearchTextCriteria const&) const override; |
| Vector<String> performTextOperation(AccessibilityTextOperation const&) override; |
| |
| AccessibilityObject* observableObject() const override { return nullptr; } |
| void linkedUIElements(AccessibilityChildrenVector&) const override { } |
| AccessibilityObject* titleUIElement() const override { return nullptr; } |
| bool exposesTitleUIElement() const override { return true; } |
| AccessibilityObject* correspondingLabelForControlElement() const override { return nullptr; } |
| AccessibilityObject* correspondingControlForLabelElement() const override { return nullptr; } |
| AccessibilityObject* scrollBar(AccessibilityOrientation) override { return nullptr; } |
| |
| AccessibilityRole ariaRoleAttribute() const override { return AccessibilityRole::Unknown; } |
| bool isPresentationalChildOfAriaRole() const override { return false; } |
| bool ariaRoleHasPresentationalChildren() const override { return false; } |
| bool inheritsPresentationalRole() const override { return false; } |
| |
| // Accessibility Text |
| void accessibilityText(Vector<AccessibilityText>&) const override { }; |
| // A single method for getting a computed label for an AXObject. It condenses the nuances of accessibilityText. Used by Inspector. |
| String computedLabel() override; |
| |
| // A programmatic way to set a name on an AccessibleObject. |
| void setAccessibleName(const AtomString&) override { } |
| bool hasAttributesRequiredForInclusion() const override; |
| |
| // Accessibility Text - (To be deprecated). |
| String accessibilityDescription() const override { return String(); } |
| String title() const override { return String(); } |
| String helpText() const override { return String(); } |
| |
| // Methods for determining accessibility text. |
| bool isARIAStaticText() const override { return ariaRoleAttribute() == AccessibilityRole::StaticText; } |
| String stringValue() const override { return String(); } |
| String textUnderElement(AccessibilityTextUnderElementMode = AccessibilityTextUnderElementMode()) const override { return String(); } |
| String text() const override { return String(); } |
| int textLength() const override { return 0; } |
| String ariaLabeledByAttribute() const override { return String(); } |
| String ariaDescribedByAttribute() const override { return String(); } |
| const String placeholderValue() const override; |
| bool accessibleNameDerivesFromContent() const override; |
| |
| // Abbreviations |
| String expandedTextValue() const override { return String(); } |
| bool supportsExpandedTextValue() const override { return false; } |
| |
| void elementsFromAttribute(Vector<Element*>&, const QualifiedName&) const override; |
| |
| // Only if isColorWell() |
| void colorValue(int& r, int& g, int& b) const override { r = 0; g = 0; b = 0; } |
| |
| AccessibilityRole roleValue() const override { return m_role; } |
| String rolePlatformString() const override; |
| String roleDescription() const override; |
| String ariaLandmarkRoleDescription() const override; |
| |
| AXObjectCache* axObjectCache() const override; |
| AXID objectID() const override { return m_id; } |
| |
| static AccessibilityObject* anchorElementForNode(Node*); |
| static AccessibilityObject* headingElementForNode(Node*); |
| Element* anchorElement() const override { return nullptr; } |
| bool supportsPressAction() const override; |
| Element* actionElement() const override { return nullptr; } |
| LayoutRect boundingBoxRect() const override { return LayoutRect(); } |
| LayoutRect elementRect() const override = 0; |
| IntPoint clickPoint() override; |
| static IntRect boundingBoxForQuads(RenderObject*, const Vector<FloatQuad>&); |
| Path elementPath() const override { return Path(); } |
| bool supportsPath() const override { return false; } |
| |
| TextIteratorBehavior textIteratorBehaviorForTextRange() const override; |
| PlainTextRange selectedTextRange() const override { return PlainTextRange(); } |
| unsigned selectionStart() const override { return selectedTextRange().start; } |
| unsigned selectionEnd() const override { return selectedTextRange().length; } |
| |
| URL url() const override { return URL(); } |
| VisibleSelection selection() const override { return VisibleSelection(); } |
| String selectedText() const override { return String(); } |
| String accessKey() const override { return nullAtom(); } |
| String actionVerb() const override; |
| Widget* widget() const override { return nullptr; } |
| PlatformWidget platformWidget() const override { return nullptr; } |
| #if PLATFORM(COCOA) |
| RemoteAXObjectRef remoteParentObject() const override; |
| #endif |
| Widget* widgetForAttachmentView() const override { return nullptr; } |
| Page* page() const override; |
| Document* document() const override; |
| FrameView* documentFrameView() const override; |
| Frame* frame() const override; |
| Frame* mainFrame() const override; |
| Document* topDocument() const override; |
| ScrollView* scrollView() const override { return nullptr; } |
| ScrollView* scrollViewAncestor() const override; |
| String language() const override; |
| // 1-based, to match the aria-level spec. |
| unsigned hierarchicalLevel() const override { return 0; } |
| bool isInlineText() const override; |
| |
| void setFocused(bool) override { } |
| void setSelectedText(const String&) override { } |
| void setSelectedTextRange(const PlainTextRange&) override { } |
| void setValue(const String&) override { } |
| bool replaceTextInRange(const String&, const PlainTextRange&) override; |
| bool insertText(const String&) override; |
| |
| void setValue(float) override { } |
| void setSelected(bool) override { } |
| void setSelectedRows(AccessibilityChildrenVector&) override { } |
| |
| void makeRangeVisible(const PlainTextRange&) override { } |
| bool press() override; |
| bool performDefaultAction() override { return press(); } |
| |
| AccessibilityOrientation orientation() const override; |
| void increment() override { } |
| void decrement() override { } |
| |
| void childrenChanged() override { } |
| void textChanged() override { } |
| void updateAccessibilityRole() override { } |
| const AccessibilityChildrenVector& children(bool updateChildrenIfNeeded = true) override; |
| void addChildren() override { } |
| void addChild(AXCoreObject*) override; |
| void insertChild(AXCoreObject*, unsigned) override; |
| |
| bool shouldIgnoreAttributeRole() const override { return false; } |
| |
| bool canHaveChildren() const override { return true; } |
| bool hasChildren() const override { return m_haveChildren; } |
| void updateChildrenIfNecessary() override; |
| void setNeedsToUpdateChildren() override { } |
| void setNeedsToUpdateSubtree() override { } |
| void clearChildren() override; |
| bool needsToUpdateChildren() const override { return false; } |
| #if PLATFORM(COCOA) |
| void detachFromParent() override; |
| #else |
| void detachFromParent() override { } |
| #endif |
| bool isDetachedFromParent() override { return false; } |
| |
| bool canHaveSelectedChildren() const override { return false; } |
| void selectedChildren(AccessibilityChildrenVector&) override { } |
| void visibleChildren(AccessibilityChildrenVector&) override { } |
| void tabChildren(AccessibilityChildrenVector&) override { } |
| bool shouldFocusActiveDescendant() const override { return false; } |
| AccessibilityObject* activeDescendant() const override { return nullptr; } |
| void handleActiveDescendantChanged() override { } |
| void handleAriaExpandedChanged() override { } |
| AccessibilityObject* firstAnonymousBlockChild() const override; |
| |
| WEBCORE_EXPORT static AccessibilityRole ariaRoleToWebCoreRole(const String&); |
| bool hasAttribute(const QualifiedName&) const override; |
| const AtomString& getAttribute(const QualifiedName&) const override; |
| bool hasTagName(const QualifiedName&) const override; |
| String tagName() const override; |
| |
| VisiblePositionRange visiblePositionRange() const override { return VisiblePositionRange(); } |
| VisiblePositionRange visiblePositionRangeForLine(unsigned) const override { return VisiblePositionRange(); } |
| |
| RefPtr<Range> elementRange() const override; |
| static bool replacedNodeNeedsCharacter(Node* replacedNode); |
| |
| VisiblePositionRange visiblePositionRangeForUnorderedPositions(const VisiblePosition&, const VisiblePosition&) const override; |
| VisiblePositionRange positionOfLeftWord(const VisiblePosition&) const override; |
| VisiblePositionRange positionOfRightWord(const VisiblePosition&) const override; |
| VisiblePositionRange leftLineVisiblePositionRange(const VisiblePosition&) const override; |
| VisiblePositionRange rightLineVisiblePositionRange(const VisiblePosition&) const override; |
| VisiblePositionRange sentenceForPosition(const VisiblePosition&) const override; |
| VisiblePositionRange paragraphForPosition(const VisiblePosition&) const override; |
| VisiblePositionRange styleRangeForPosition(const VisiblePosition&) const override; |
| VisiblePositionRange visiblePositionRangeForRange(const PlainTextRange&) const override; |
| VisiblePositionRange lineRangeForPosition(const VisiblePosition&) const override; |
| |
| RefPtr<Range> rangeForPlainTextRange(const PlainTextRange&) const override; |
| |
| static String stringForVisiblePositionRange(const VisiblePositionRange&); |
| String stringForRange(RefPtr<Range>) const override; |
| IntRect boundsForVisiblePositionRange(const VisiblePositionRange&) const override { return IntRect(); } |
| IntRect boundsForRange(const RefPtr<Range>) const override { return IntRect(); } |
| int lengthForVisiblePositionRange(const VisiblePositionRange&) const override; |
| void setSelectedVisiblePositionRange(const VisiblePositionRange&) const override { } |
| |
| VisiblePosition visiblePositionForBounds(const IntRect&, AccessibilityVisiblePositionForBounds) const override; |
| VisiblePosition visiblePositionForPoint(const IntPoint&) const override { return VisiblePosition(); } |
| VisiblePosition nextVisiblePosition(const VisiblePosition& visiblePos) const override { return visiblePos.next(); } |
| VisiblePosition previousVisiblePosition(const VisiblePosition& visiblePos) const override { return visiblePos.previous(); } |
| VisiblePosition nextWordEnd(const VisiblePosition&) const override; |
| VisiblePosition previousWordStart(const VisiblePosition&) const override; |
| VisiblePosition nextLineEndPosition(const VisiblePosition&) const override; |
| VisiblePosition previousLineStartPosition(const VisiblePosition&) const override; |
| VisiblePosition nextSentenceEndPosition(const VisiblePosition&) const override; |
| VisiblePosition previousSentenceStartPosition(const VisiblePosition&) const override; |
| VisiblePosition nextParagraphEndPosition(const VisiblePosition&) const override; |
| VisiblePosition previousParagraphStartPosition(const VisiblePosition&) const override; |
| VisiblePosition visiblePositionForIndex(unsigned, bool /*lastIndexOK */) const override { return VisiblePosition(); } |
| |
| VisiblePosition visiblePositionForIndex(int) const override { return VisiblePosition(); } |
| int indexForVisiblePosition(const VisiblePosition&) const override { return 0; } |
| |
| AccessibilityObject* accessibilityObjectForPosition(const VisiblePosition&) const override; |
| int lineForPosition(const VisiblePosition&) const override; |
| PlainTextRange plainTextRangeForVisiblePositionRange(const VisiblePositionRange&) const override; |
| int index(const VisiblePosition&) const override { return -1; } |
| |
| void lineBreaks(Vector<int>&) const override { } |
| PlainTextRange doAXRangeForLine(unsigned) const override { return PlainTextRange(); } |
| PlainTextRange doAXRangeForPosition(const IntPoint&) const override; |
| PlainTextRange doAXRangeForIndex(unsigned) const override { return PlainTextRange(); } |
| PlainTextRange doAXStyleRangeForIndex(unsigned) const override; |
| |
| String doAXStringForRange(const PlainTextRange&) const override { return String(); } |
| IntRect doAXBoundsForRange(const PlainTextRange&) const override { return IntRect(); } |
| IntRect doAXBoundsForRangeUsingCharacterOffset(const PlainTextRange&) const override { return IntRect(); } |
| static String listMarkerTextForNodeAndPosition(Node*, const VisiblePosition&); |
| |
| unsigned doAXLineForIndex(unsigned) override; |
| |
| String computedRoleString() const override; |
| |
| String stringValueForMSAA() const override { return String(); } |
| String stringRoleForMSAA() const override { return String(); } |
| String nameForMSAA() const override { return String(); } |
| String descriptionForMSAA() const override { return String(); } |
| AccessibilityRole roleValueForMSAA() const override { return roleValue(); } |
| |
| String passwordFieldValue() const override { return String(); } |
| bool isValueAutofilled() const override; |
| bool isValueAutofillAvailable() const override; |
| AutoFillButtonType valueAutofillButtonType() const override; |
| |
| // Used by an ARIA tree to get all its rows. |
| void ariaTreeRows(AccessibilityChildrenVector&) override; |
| // Used by an ARIA tree item to get only its content, and not its child tree items and groups. |
| void ariaTreeItemContent(AccessibilityChildrenVector&) override; |
| |
| // ARIA live-region features. |
| bool supportsLiveRegion(bool excludeIfOff = true) const override; |
| bool isInsideLiveRegion(bool excludeIfOff = true) const override; |
| AccessibilityObject* liveRegionAncestor(bool excludeIfOff = true) const override; |
| const String liveRegionStatus() const override { return String(); } |
| const String liveRegionRelevant() const override { return nullAtom(); } |
| bool liveRegionAtomic() const override { return false; } |
| bool isBusy() const override { return false; } |
| static const String defaultLiveRegionStatusForRole(AccessibilityRole); |
| static bool liveRegionStatusIsEnabled(const AtomString&); |
| static bool contentEditableAttributeIsEnabled(Element*); |
| bool hasContentEditableAttributeSet() const override; |
| |
| bool supportsReadOnly() const override; |
| String readOnlyValue() const override; |
| |
| bool supportsAutoComplete() const override; |
| String autoCompleteValue() const override; |
| |
| bool hasARIAValueNow() const override { return hasAttribute(HTMLNames::aria_valuenowAttr); } |
| bool supportsARIAAttributes() const override; |
| |
| // CSS3 Speech properties. |
| OptionSet<SpeakAs> speakAsProperty() const override { return OptionSet<SpeakAs> { }; } |
| |
| // Make this object visible by scrolling as many nested scrollable views as needed. |
| void scrollToMakeVisible() const override; |
| // Same, but if the whole object can't be made visible, try for this subrect, in local coordinates. |
| void scrollToMakeVisibleWithSubFocus(const IntRect&) const override; |
| // Scroll this object to a given point in global coordinates of the top-level window. |
| void scrollToGlobalPoint(const IntPoint&) const override; |
| |
| bool scrollByPage(ScrollByPageDirection) const override; |
| IntPoint scrollPosition() const override; |
| IntSize scrollContentsSize() const override; |
| IntRect scrollVisibleContentRect() const override; |
| void scrollToMakeVisible(const ScrollRectToVisibleOptions&) const override; |
| |
| bool lastKnownIsIgnoredValue() override; |
| void setLastKnownIsIgnoredValue(bool) override; |
| |
| // Fires a children changed notification on the parent if the isIgnored value changed. |
| void notifyIfIgnoredValueChanged() override; |
| |
| // All math elements return true for isMathElement(). |
| bool isMathElement() const override { return false; } |
| bool isMathFraction() const override { return false; } |
| bool isMathFenced() const override { return false; } |
| bool isMathSubscriptSuperscript() const override { return false; } |
| bool isMathRow() const override { return false; } |
| bool isMathUnderOver() const override { return false; } |
| bool isMathRoot() const override { return false; } |
| bool isMathSquareRoot() const override { return false; } |
| bool isMathText() const override { return false; } |
| bool isMathNumber() const override { return false; } |
| bool isMathOperator() const override { return false; } |
| bool isMathFenceOperator() const override { return false; } |
| bool isMathSeparatorOperator() const override { return false; } |
| bool isMathIdentifier() const override { return false; } |
| bool isMathTable() const override { return false; } |
| bool isMathTableRow() const override { return false; } |
| bool isMathTableCell() const override { return false; } |
| bool isMathMultiscript() const override { return false; } |
| bool isMathToken() const override { return false; } |
| bool isMathScriptObject(AccessibilityMathScriptObjectType) const override { return false; } |
| bool isMathMultiscriptObject(AccessibilityMathMultiscriptObjectType) const override { return false; } |
| |
| // Root components. |
| AXCoreObject* mathRadicandObject() override { return nullptr; } |
| AXCoreObject* mathRootIndexObject() override { return nullptr; } |
| |
| // Under over components. |
| AXCoreObject* mathUnderObject() override { return nullptr; } |
| AXCoreObject* mathOverObject() override { return nullptr; } |
| |
| // Fraction components. |
| AXCoreObject* mathNumeratorObject() override { return nullptr; } |
| AXCoreObject* mathDenominatorObject() override { return nullptr; } |
| |
| // Subscript/superscript components. |
| AXCoreObject* mathBaseObject() override { return nullptr; } |
| AXCoreObject* mathSubscriptObject() override { return nullptr; } |
| AXCoreObject* mathSuperscriptObject() override { return nullptr; } |
| |
| // Fenced components. |
| String mathFencedOpenString() const override { return String(); } |
| String mathFencedCloseString() const override { return String(); } |
| int mathLineThickness() const override { return 0; } |
| bool isAnonymousMathOperator() const override { return false; } |
| |
| // Multiscripts components. |
| void mathPrescripts(AccessibilityMathMultiscriptPairs&) override { } |
| void mathPostscripts(AccessibilityMathMultiscriptPairs&) override { } |
| |
| // Visibility. |
| bool isAXHidden() const override; |
| bool isDOMHidden() const override; |
| bool isHidden() const override { return isAXHidden() || isDOMHidden(); } |
| |
| #if PLATFORM(COCOA) |
| void overrideAttachmentParent(AXCoreObject* parent) override; |
| #else |
| void overrideAttachmentParent(AXCoreObject*) override { } |
| #endif |
| |
| #if ENABLE(ACCESSIBILITY) |
| // a platform-specific method for determining if an attachment is ignored |
| bool accessibilityIgnoreAttachment() const override; |
| // gives platforms the opportunity to indicate if and how an object should be included |
| AccessibilityObjectInclusion accessibilityPlatformIncludesObject() const override; |
| #else |
| bool accessibilityIgnoreAttachment() const override { return true; } |
| AccessibilityObjectInclusion accessibilityPlatformIncludesObject() const override { return AccessibilityObjectInclusion::DefaultBehavior; } |
| #endif |
| |
| #if PLATFORM(IOS_FAMILY) |
| int accessibilityPasswordFieldLength() override; |
| bool hasTouchEventListener() const override; |
| bool isInputTypePopupButton() const override; |
| #endif |
| |
| // allows for an AccessibilityObject to update its render tree or perform |
| // other operations update type operations |
| void updateBackingStore() override; |
| |
| #if PLATFORM(COCOA) |
| bool preventKeyboardDOMEventDispatch() const override; |
| void setPreventKeyboardDOMEventDispatch(bool) override; |
| bool fileUploadButtonReturnsValueInTitle() const override; |
| String speechHintAttributeValue() const override; |
| String descriptionAttributeValue() const override; |
| String helpTextAttributeValue() const override; |
| String titleAttributeValue() const override; |
| bool hasApplePDFAnnotationAttribute() const override { return hasAttribute(HTMLNames::x_apple_pdf_annotationAttr); } |
| #endif |
| |
| #if PLATFORM(COCOA) && !PLATFORM(IOS_FAMILY) |
| bool caretBrowsingEnabled() const override; |
| void setCaretBrowsingEnabled(bool) override; |
| #endif |
| |
| AccessibilityObject* focusableAncestor() override; |
| AccessibilityObject* editableAncestor() override; |
| AccessibilityObject* highestEditableAncestor() override; |
| |
| const AccessibilityScrollView* ancestorAccessibilityScrollView(bool includeSelf) const override; |
| AccessibilityObject* webAreaObject() const override { return nullptr; } |
| |
| void clearIsIgnoredFromParentData() override { m_isIgnoredFromParentData = AccessibilityIsIgnoredFromParentData(); } |
| void setIsIgnoredFromParentDataForChild(AXCoreObject*) override; |
| |
| uint64_t sessionID() const override; |
| String documentURI() const override; |
| String documentEncoding() const override; |
| AccessibilityChildrenVector documentLinks() override { return AccessibilityChildrenVector(); } |
| |
| protected: |
| AccessibilityObject() = default; |
| void detachRemoteParts(AccessibilityDetachmentType) override; |
| void detachPlatformWrapper(AccessibilityDetachmentType) override; |
| |
| AXID m_id { 0 }; |
| AccessibilityChildrenVector m_children; |
| mutable bool m_haveChildren { false }; |
| AccessibilityRole m_role { AccessibilityRole::Unknown }; |
| AccessibilityObjectInclusion m_lastKnownIsIgnoredValue { AccessibilityObjectInclusion::DefaultBehavior }; |
| AccessibilityIsIgnoredFromParentData m_isIgnoredFromParentData { }; |
| bool m_childrenDirty { false }; |
| bool m_subtreeDirty { false }; |
| #if ENABLE(ACCESSIBILITY_ISOLATED_TREE) |
| bool m_isolatedTreeNodeInitialized { false }; |
| #endif |
| |
| void setIsIgnoredFromParentData(AccessibilityIsIgnoredFromParentData& data) override { m_isIgnoredFromParentData = data; } |
| |
| virtual bool computeAccessibilityIsIgnored() const { return true; } |
| bool isAccessibilityObject() const override { return true; } |
| |
| // If this object itself scrolls, return its ScrollableArea. |
| virtual ScrollableArea* getScrollableAreaIfScrollable() const { return nullptr; } |
| virtual void scrollTo(const IntPoint&) const { } |
| ScrollableArea* scrollableAreaAncestor() const; |
| void scrollAreaAndAncestor(std::pair<ScrollableArea*, AccessibilityObject*>&) const; |
| |
| virtual AccessibilityRole buttonRoleType() const; |
| String rolePlatformDescription() const; |
| bool isOnScreen() const override; |
| bool dispatchTouchEvent(); |
| |
| void ariaElementsFromAttribute(AccessibilityChildrenVector&, const QualifiedName&) const; |
| void ariaElementsReferencedByAttribute(AccessibilityChildrenVector&, const QualifiedName&) const; |
| |
| AccessibilityObject* radioGroupAncestor() const; |
| |
| #if ENABLE(ACCESSIBILITY) && USE(ATK) |
| bool allowsTextRanges() const; |
| unsigned getLengthForTextRange() const; |
| #else |
| bool allowsTextRanges() const { return isTextControl(); } |
| unsigned getLengthForTextRange() const { return text().length(); } |
| #endif |
| }; |
| |
| #if !ENABLE(ACCESSIBILITY) |
| inline const AccessibilityObject::AccessibilityChildrenVector& AccessibilityObject::children(bool) { return m_children; } |
| inline String AccessibilityObject::actionVerb() const { return emptyString(); } |
| inline int AccessibilityObject::lineForPosition(const VisiblePosition&) const { return -1; } |
| inline void AccessibilityObject::updateBackingStore() { } |
| inline void AccessibilityObject::detachPlatformWrapper(AccessibilityDetachmentType) { } |
| #endif |
| |
| AccessibilityObject* firstAccessibleObjectFromNode(const Node*, const WTF::Function<bool(const AccessibilityObject&)>& isAccessible); |
| |
| namespace Accessibility { |
| |
| using PlatformRoleMap = HashMap<AccessibilityRole, String, DefaultHash<unsigned>::Hash, WTF::UnsignedWithZeroKeyHashTraits<unsigned>>; |
| |
| PlatformRoleMap createPlatformRoleMap(); |
| String roleToPlatformString(AccessibilityRole); |
| |
| } // namespace Accessibility |
| |
| } // namespace WebCore |
| |
| #define SPECIALIZE_TYPE_TRAITS_ACCESSIBILITY(ToValueTypeName, predicate) \ |
| SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::ToValueTypeName) \ |
| static bool isType(const WebCore::AXCoreObject& object) { return object.predicate; } \ |
| SPECIALIZE_TYPE_TRAITS_END() |
| |
| SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::AccessibilityObject) |
| static bool isType(const WebCore::AXCoreObject& context) { return context.isAccessibilityObject(); } |
| SPECIALIZE_TYPE_TRAITS_END() |
