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| 1 /* | 1 /* |
| 2 * Copyright (C) 2008 Apple Inc. All rights reserved. | 2 * Copyright (C) 2008 Apple Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * | 7 * |
| 8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
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| 47 class MODULES_EXPORT AXLayoutObject : public AXNodeObject { | 47 class MODULES_EXPORT AXLayoutObject : public AXNodeObject { |
| 48 WTF_MAKE_NONCOPYABLE(AXLayoutObject); | 48 WTF_MAKE_NONCOPYABLE(AXLayoutObject); |
| 49 | 49 |
| 50 protected: | 50 protected: |
| 51 AXLayoutObject(LayoutObject*, AXObjectCacheImpl&); | 51 AXLayoutObject(LayoutObject*, AXObjectCacheImpl&); |
| 52 | 52 |
| 53 public: | 53 public: |
| 54 static AXLayoutObject* Create(LayoutObject*, AXObjectCacheImpl&); | 54 static AXLayoutObject* Create(LayoutObject*, AXObjectCacheImpl&); |
| 55 ~AXLayoutObject() override; | 55 ~AXLayoutObject() override; |
| 56 | 56 |
| 57 // Public, overridden from AXObjectImpl. | 57 // Public, overridden from AXObject. |
| 58 LayoutObject* GetLayoutObject() const final { return layout_object_; } | 58 LayoutObject* GetLayoutObject() const final { return layout_object_; } |
| 59 LayoutBoxModelObject* GetLayoutBoxModelObject() const; | 59 LayoutBoxModelObject* GetLayoutBoxModelObject() const; |
| 60 ScrollableArea* GetScrollableAreaIfScrollable() const final; | 60 ScrollableArea* GetScrollableAreaIfScrollable() const final; |
| 61 AccessibilityRole DetermineAccessibilityRole() override; | 61 AccessibilityRole DetermineAccessibilityRole() override; |
| 62 AccessibilityRole NativeAccessibilityRoleIgnoringAria() const override; | 62 AccessibilityRole NativeAccessibilityRoleIgnoringAria() const override; |
| 63 | 63 |
| 64 protected: | 64 protected: |
| 65 LayoutObject* layout_object_; | 65 LayoutObject* layout_object_; |
| 66 | 66 |
| 67 LayoutObject* LayoutObjectForRelativeBounds() const override { | 67 LayoutObject* LayoutObjectForRelativeBounds() const override { |
| 68 return layout_object_; | 68 return layout_object_; |
| 69 } | 69 } |
| 70 | 70 |
| 71 // | 71 // |
| 72 // Overridden from AXObjectImpl. | 72 // Overridden from AXObject. |
| 73 // | 73 // |
| 74 | 74 |
| 75 void Init() override; | 75 void Init() override; |
| 76 void Detach() override; | 76 void Detach() override; |
| 77 bool IsDetached() const override { return !layout_object_; } | 77 bool IsDetached() const override { return !layout_object_; } |
| 78 bool IsAXLayoutObject() const override { return true; } | 78 bool IsAXLayoutObject() const override { return true; } |
| 79 | 79 |
| 80 // Check object role or purpose. | 80 // Check object role or purpose. |
| 81 bool IsEditable() const override; | 81 bool IsEditable() const override; |
| 82 bool IsRichlyEditable() const override; | 82 bool IsRichlyEditable() const override; |
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| 104 float FontSize() const final; | 104 float FontSize() const final; |
| 105 String ImageDataUrl(const IntSize& max_size) const final; | 105 String ImageDataUrl(const IntSize& max_size) const final; |
| 106 String GetText() const override; | 106 String GetText() const override; |
| 107 AccessibilityTextDirection GetTextDirection() const final; | 107 AccessibilityTextDirection GetTextDirection() const final; |
| 108 int TextLength() const override; | 108 int TextLength() const override; |
| 109 TextStyle GetTextStyle() const final; | 109 TextStyle GetTextStyle() const final; |
| 110 KURL Url() const override; | 110 KURL Url() const override; |
| 111 | 111 |
| 112 // Inline text boxes. | 112 // Inline text boxes. |
| 113 void LoadInlineTextBoxes() override; | 113 void LoadInlineTextBoxes() override; |
| 114 AXObjectImpl* NextOnLine() const override; | 114 AXObject* NextOnLine() const override; |
| 115 AXObjectImpl* PreviousOnLine() const override; | 115 AXObject* PreviousOnLine() const override; |
| 116 | 116 |
| 117 // Properties of interactive elements. | 117 // Properties of interactive elements. |
| 118 String StringValue() const override; | 118 String StringValue() const override; |
| 119 | 119 |
| 120 // ARIA attributes. | 120 // ARIA attributes. |
| 121 void AriaDescribedbyElements(AXObjectVector&) const override; | 121 void AriaDescribedbyElements(AXObjectVector&) const override; |
| 122 void AriaLabelledbyElements(AXObjectVector&) const override; | 122 void AriaLabelledbyElements(AXObjectVector&) const override; |
| 123 void AriaOwnsElements(AXObjectVector&) const override; | 123 void AriaOwnsElements(AXObjectVector&) const override; |
| 124 | 124 |
| 125 bool AriaHasPopup() const override; | 125 bool AriaHasPopup() const override; |
| 126 bool AriaRoleHasPresentationalChildren() const override; | 126 bool AriaRoleHasPresentationalChildren() const override; |
| 127 AXObjectImpl* AncestorForWhichThisIsAPresentationalChild() const override; | 127 AXObject* AncestorForWhichThisIsAPresentationalChild() const override; |
| 128 bool SupportsARIADragging() const override; | 128 bool SupportsARIADragging() const override; |
| 129 bool SupportsARIADropping() const override; | 129 bool SupportsARIADropping() const override; |
| 130 bool SupportsARIAFlowTo() const override; | 130 bool SupportsARIAFlowTo() const override; |
| 131 bool SupportsARIAOwns() const override; | 131 bool SupportsARIAOwns() const override; |
| 132 | 132 |
| 133 // ARIA live-region features. | 133 // ARIA live-region features. |
| 134 const AtomicString& LiveRegionStatus() const override; | 134 const AtomicString& LiveRegionStatus() const override; |
| 135 const AtomicString& LiveRegionRelevant() const override; | 135 const AtomicString& LiveRegionRelevant() const override; |
| 136 bool LiveRegionAtomic() const override; | 136 bool LiveRegionAtomic() const override; |
| 137 bool LiveRegionBusy() const override; | 137 bool LiveRegionBusy() const override; |
| 138 | 138 |
| 139 // AX name calc. | 139 // AX name calc. |
| 140 String TextAlternative(bool recursive, | 140 String TextAlternative(bool recursive, |
| 141 bool in_aria_labelled_by_traversal, | 141 bool in_aria_labelled_by_traversal, |
| 142 AXObjectSet& visited, | 142 AXObjectSet& visited, |
| 143 AXNameFrom&, | 143 AXNameFrom&, |
| 144 AXRelatedObjectVector*, | 144 AXRelatedObjectVector*, |
| 145 NameSources*) const override; | 145 NameSources*) const override; |
| 146 | 146 |
| 147 // Methods that retrieve or manipulate the current selection. | 147 // Methods that retrieve or manipulate the current selection. |
| 148 | 148 |
| 149 AXRange Selection() const override; | 149 AXRange Selection() const override; |
| 150 AXRange SelectionUnderObject() const override; | 150 AXRange SelectionUnderObject() const override; |
| 151 void SetSelection(const AXRange&) override; | 151 void SetSelection(const AXRange&) override; |
| 152 | 152 |
| 153 // Hit testing. | 153 // Hit testing. |
| 154 AXObjectImpl* AccessibilityHitTest(const IntPoint&) const override; | 154 AXObject* AccessibilityHitTest(const IntPoint&) const override; |
| 155 AXObjectImpl* ElementAccessibilityHitTest(const IntPoint&) const override; | 155 AXObject* ElementAccessibilityHitTest(const IntPoint&) const override; |
| 156 | 156 |
| 157 // High-level accessibility tree access. Other modules should only use these | 157 // High-level accessibility tree access. Other modules should only use these |
| 158 // functions. | 158 // functions. |
| 159 AXObjectImpl* ComputeParent() const override; | 159 AXObject* ComputeParent() const override; |
| 160 AXObjectImpl* ComputeParentIfExists() const override; | 160 AXObject* ComputeParentIfExists() const override; |
| 161 | 161 |
| 162 // Low-level accessibility tree exploration, only for use within the | 162 // Low-level accessibility tree exploration, only for use within the |
| 163 // accessibility module. | 163 // accessibility module. |
| 164 AXObjectImpl* RawFirstChild() const override; | 164 AXObject* RawFirstChild() const override; |
| 165 AXObjectImpl* RawNextSibling() const override; | 165 AXObject* RawNextSibling() const override; |
| 166 void AddChildren() override; | 166 void AddChildren() override; |
| 167 bool CanHaveChildren() const override; | 167 bool CanHaveChildren() const override; |
| 168 void UpdateChildrenIfNecessary() override; | 168 void UpdateChildrenIfNecessary() override; |
| 169 bool NeedsToUpdateChildren() const override { return children_dirty_; } | 169 bool NeedsToUpdateChildren() const override { return children_dirty_; } |
| 170 void SetNeedsToUpdateChildren() override { children_dirty_ = true; } | 170 void SetNeedsToUpdateChildren() override { children_dirty_ = true; } |
| 171 void ClearChildren() override; | 171 void ClearChildren() override; |
| 172 | 172 |
| 173 // Properties of the object's owning document or page. | 173 // Properties of the object's owning document or page. |
| 174 double EstimatedLoadingProgress() const override; | 174 double EstimatedLoadingProgress() const override; |
| 175 | 175 |
| 176 // DOM and layout tree access. | 176 // DOM and layout tree access. |
| 177 Node* GetNode() const override; | 177 Node* GetNode() const override; |
| 178 Document* GetDocument() const override; | 178 Document* GetDocument() const override; |
| 179 FrameView* DocumentFrameView() const override; | 179 FrameView* DocumentFrameView() const override; |
| 180 Element* AnchorElement() const override; | 180 Element* AnchorElement() const override; |
| 181 | 181 |
| 182 void SetValue(const String&) override; | 182 void SetValue(const String&) override; |
| 183 | 183 |
| 184 // Notifications that this object may have changed. | 184 // Notifications that this object may have changed. |
| 185 void HandleActiveDescendantChanged() override; | 185 void HandleActiveDescendantChanged() override; |
| 186 void HandleAriaExpandedChanged() override; | 186 void HandleAriaExpandedChanged() override; |
| 187 void TextChanged() override; | 187 void TextChanged() override; |
| 188 | 188 |
| 189 // Text metrics. Most of these should be deprecated, needs major cleanup. | 189 // Text metrics. Most of these should be deprecated, needs major cleanup. |
| 190 int Index(const VisiblePosition&) const override; | 190 int Index(const VisiblePosition&) const override; |
| 191 VisiblePosition VisiblePositionForIndex(int) const override; | 191 VisiblePosition VisiblePositionForIndex(int) const override; |
| 192 void LineBreaks(Vector<int>&) const final; | 192 void LineBreaks(Vector<int>&) const final; |
| 193 | 193 |
| 194 private: | 194 private: |
| 195 AXObjectImpl* TreeAncestorDisallowingChild() const; | 195 AXObject* TreeAncestorDisallowingChild() const; |
| 196 bool IsTabItemSelected() const; | 196 bool IsTabItemSelected() const; |
| 197 bool IsValidSelectionBound(const AXObjectImpl*) const; | 197 bool IsValidSelectionBound(const AXObject*) const; |
| 198 AXObjectImpl* AccessibilityImageMapHitTest(HTMLAreaElement*, | 198 AXObject* AccessibilityImageMapHitTest(HTMLAreaElement*, |
| 199 const IntPoint&) const; | 199 const IntPoint&) const; |
| 200 LayoutObject* LayoutParentObject() const; | 200 LayoutObject* LayoutParentObject() const; |
| 201 bool IsSVGImage() const; | 201 bool IsSVGImage() const; |
| 202 void DetachRemoteSVGRoot(); | 202 void DetachRemoteSVGRoot(); |
| 203 AXSVGRoot* RemoteSVGRootElement() const; | 203 AXSVGRoot* RemoteSVGRootElement() const; |
| 204 AXObjectImpl* RemoteSVGElementHitTest(const IntPoint&) const; | 204 AXObject* RemoteSVGElementHitTest(const IntPoint&) const; |
| 205 void OffsetBoundingBoxForRemoteSVGElement(LayoutRect&) const; | 205 void OffsetBoundingBoxForRemoteSVGElement(LayoutRect&) const; |
| 206 void AddHiddenChildren(); | 206 void AddHiddenChildren(); |
| 207 void AddTextFieldChildren(); | 207 void AddTextFieldChildren(); |
| 208 void AddImageMapChildren(); | 208 void AddImageMapChildren(); |
| 209 void AddCanvasChildren(); | 209 void AddCanvasChildren(); |
| 210 void AddPopupChildren(); | 210 void AddPopupChildren(); |
| 211 void AddRemoteSVGChildren(); | 211 void AddRemoteSVGChildren(); |
| 212 void AddInlineTextBoxChildren(bool force); | 212 void AddInlineTextBoxChildren(bool force); |
| 213 | 213 |
| 214 bool ElementAttributeValue(const QualifiedName&) const; | 214 bool ElementAttributeValue(const QualifiedName&) const; |
| 215 LayoutRect ComputeElementRect() const; | 215 LayoutRect ComputeElementRect() const; |
| 216 AXRange TextControlSelection() const; | 216 AXRange TextControlSelection() const; |
| 217 int IndexForVisiblePosition(const VisiblePosition&) const; | 217 int IndexForVisiblePosition(const VisiblePosition&) const; |
| 218 AXLayoutObject* GetUnignoredObjectFromNode(Node&) const; | 218 AXLayoutObject* GetUnignoredObjectFromNode(Node&) const; |
| 219 }; | 219 }; |
| 220 | 220 |
| 221 DEFINE_AX_OBJECT_TYPE_CASTS(AXLayoutObject, IsAXLayoutObject()); | 221 DEFINE_AX_OBJECT_TYPE_CASTS(AXLayoutObject, IsAXLayoutObject()); |
| 222 | 222 |
| 223 } // namespace blink | 223 } // namespace blink |
| 224 | 224 |
| 225 #endif // AXLayoutObject_h | 225 #endif // AXLayoutObject_h |
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