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Side by Side Diff: content/browser/accessibility/browser_accessibility_com_win.h

Issue 2975413002: Move ia2_attributes handling to AXPlatformNodeWin. (Closed)
Patch Set: Suggestions from dmazzoni Created 3 years, 5 months ago
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1 // Copyright (c) 2017 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2017 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_COM_WIN_H_ 5 #ifndef CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_COM_WIN_H_
6 #define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_COM_WIN_H_ 6 #define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_COM_WIN_H_
7 7
8 #include <atlbase.h> 8 #include <atlbase.h>
9 #include <atlcom.h> 9 #include <atlcom.h>
10 #include <oleacc.h> 10 #include <oleacc.h>
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781 // It's okay for input to be the same as output. 781 // It's okay for input to be the same as output.
782 CONTENT_EXPORT static void SanitizeStringAttributeForIA2( 782 CONTENT_EXPORT static void SanitizeStringAttributeForIA2(
783 const base::string16& input, 783 const base::string16& input,
784 base::string16* output); 784 base::string16* output);
785 FRIEND_TEST_ALL_PREFIXES(BrowserAccessibilityTest, 785 FRIEND_TEST_ALL_PREFIXES(BrowserAccessibilityTest,
786 TestSanitizeStringAttributeForIA2); 786 TestSanitizeStringAttributeForIA2);
787 787
788 // Sets the selection given a start and end offset in IA2 Hypertext. 788 // Sets the selection given a start and end offset in IA2 Hypertext.
789 void SetIA2HypertextSelection(LONG start_offset, LONG end_offset); 789 void SetIA2HypertextSelection(LONG start_offset, LONG end_offset);
790 790
791 // If the string attribute |attribute| is present, add its value as an
792 // IAccessible2 attribute with the name |ia2_attr|.
793 void StringAttributeToIA2(ui::AXStringAttribute attribute,
794 const char* ia2_attr);
795
796 // If the bool attribute |attribute| is present, add its value as an
797 // IAccessible2 attribute with the name |ia2_attr|.
798 void BoolAttributeToIA2(ui::AXBoolAttribute attribute, const char* ia2_attr);
799
800 // If the int attribute |attribute| is present, add its value as an
801 // IAccessible2 attribute with the name |ia2_attr|.
802 void IntAttributeToIA2(ui::AXIntAttribute attribute, const char* ia2_attr);
803
804 // 791 //
805 // Helper methods for IA2 hyperlinks. 792 // Helper methods for IA2 hyperlinks.
806 // 793 //
807 // Hyperlink is an IA2 misnomer. It refers to objects embedded within other 794 // Hyperlink is an IA2 misnomer. It refers to objects embedded within other
808 // objects, such as a numbered list within a contenteditable div. 795 // objects, such as a numbered list within a contenteditable div.
809 // Also, in IA2, text that includes embedded objects is called hypertext. 796 // Also, in IA2, text that includes embedded objects is called hypertext.
810 797
811 // Returns true if the current object is an IA2 hyperlink. 798 // Returns true if the current object is an IA2 hyperlink.
812 bool IsHyperlink() const; 799 bool IsHyperlink() const;
813 // Returns the hyperlink at the given text position, or nullptr if no 800 // Returns the hyperlink at the given text position, or nullptr if no
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843 // If not found they retrieve the global selection found on the current frame. 830 // If not found they retrieve the global selection found on the current frame.
844 int GetSelectionAnchor() const; 831 int GetSelectionAnchor() const;
845 int GetSelectionFocus() const; 832 int GetSelectionFocus() const;
846 // Retrieves the selection offsets in the way required by the IA2 APIs. 833 // Retrieves the selection offsets in the way required by the IA2 APIs.
847 // selection_start and selection_end are -1 when there is no selection active 834 // selection_start and selection_end are -1 when there is no selection active
848 // on this object. 835 // on this object.
849 // The greatest of the two offsets is one past the last character of the 836 // The greatest of the two offsets is one past the last character of the
850 // selection.) 837 // selection.)
851 void GetSelectionOffsets(int* selection_start, int* selection_end) const; 838 void GetSelectionOffsets(int* selection_start, int* selection_end) const;
852 839
853 // Get the range value text, which might come from aria-valuetext or
854 // a floating-point value. This is different from the value string
855 // attribute used in input controls such as text boxes and combo boxes.
856 base::string16 GetRangeValueText();
857
858 // Return true for roles that support the value interface
859 bool IsRangeValueSupported();
860 840
861 bool IsSameHypertextCharacter(size_t old_char_index, size_t new_char_index); 841 bool IsSameHypertextCharacter(size_t old_char_index, size_t new_char_index);
862 void ComputeHypertextRemovedAndInserted(int* start, 842 void ComputeHypertextRemovedAndInserted(int* start,
863 int* old_len, 843 int* old_len,
864 int* new_len); 844 int* new_len);
865 845
866 // If offset is a member of IA2TextSpecialOffsets this function updates the 846 // If offset is a member of IA2TextSpecialOffsets this function updates the
867 // value of offset and returns, otherwise offset remains unchanged. 847 // value of offset and returns, otherwise offset remains unchanged.
868 void HandleSpecialTextOffset(LONG* offset); 848 void HandleSpecialTextOffset(LONG* offset);
869 849
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904 // Clears all the forward relations from this object to any other object and 884 // Clears all the forward relations from this object to any other object and
905 // the associated reverse relations on the other objects, but leaves any 885 // the associated reverse relations on the other objects, but leaves any
906 // reverse relations on this object alone. 886 // reverse relations on this object alone.
907 void ClearOwnRelations(); 887 void ClearOwnRelations();
908 void RemoveBidirectionalRelationsOfType( 888 void RemoveBidirectionalRelationsOfType(
909 const base::string16& relation_type, 889 const base::string16& relation_type,
910 const base::string16& reverse_relation_type); 890 const base::string16& reverse_relation_type);
911 void RemoveTargetFromRelation(const base::string16& relation_type, 891 void RemoveTargetFromRelation(const base::string16& relation_type,
912 int target_id); 892 int target_id);
913 893
914 // Updates object attributes of IA2 with html attributes.
915 void UpdateRequiredAttributes();
916
917 // Fire a Windows-specific accessibility event notification on this node. 894 // Fire a Windows-specific accessibility event notification on this node.
918 void FireNativeEvent(LONG win_event_type) const; 895 void FireNativeEvent(LONG win_event_type) const;
919 struct WinAttributes { 896 struct WinAttributes {
920 WinAttributes(); 897 WinAttributes();
921 ~WinAttributes(); 898 ~WinAttributes();
922 899
923 // IAccessible role and state. 900 // IAccessible role and state.
924 int32_t ia_role; 901 int32_t ia_role;
925 int32_t ia_state; 902 int32_t ia_state;
926 base::string16 role_name; 903 base::string16 role_name;
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976 953
977 DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityComWin); 954 DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityComWin);
978 }; 955 };
979 956
980 CONTENT_EXPORT BrowserAccessibilityComWin* ToBrowserAccessibilityComWin( 957 CONTENT_EXPORT BrowserAccessibilityComWin* ToBrowserAccessibilityComWin(
981 BrowserAccessibility* obj); 958 BrowserAccessibility* obj);
982 959
983 } // namespace content 960 } // namespace content
984 961
985 #endif // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_COM_WIN_H_ 962 #endif // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_COM_WIN_H_
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