Reland 8775059 Support IAccessibleHypertext.

content/browser/accessibility/browser_accessibility_win.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_WIN_H_
 #define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_WIN_H_
 #pragma once
 
 #include <atlbase.h>
 #include <atlcom.h>
@@ skipping 26 matching lines @@
 // communication of accessibility information, providing accessibility
 // to be used by screen readers and other assistive technology (AT).
 //
 ////////////////////////////////////////////////////////////////////////////////
 class __declspec(uuid("562072fe-3390-43b1-9e2c-dd4118f5ac79"))
 BrowserAccessibilityWin
     : public BrowserAccessibility,
       public CComObjectRootEx<CComMultiThreadModel>,
       public IDispatchImpl<IAccessible2, &IID_IAccessible2,
                            &LIBID_IAccessible2Lib>,
+      public IAccessibleHyperlink,
+      public IAccessibleHypertext,
       public IAccessibleImage,
       public IAccessibleTable,
       public IAccessibleTable2,
       public IAccessibleTableCell,
-      public IAccessibleText,
       public IAccessibleValue,
       public IServiceProvider,
       public ISimpleDOMDocument,
       public ISimpleDOMNode,
       public ISimpleDOMText {
  public:
   BEGIN_COM_MAP(BrowserAccessibilityWin)
     COM_INTERFACE_ENTRY2(IDispatch, IAccessible2)
     COM_INTERFACE_ENTRY2(IAccessible, IAccessible2)
+    COM_INTERFACE_ENTRY2(IAccessibleText, IAccessibleHypertext)
     COM_INTERFACE_ENTRY(IAccessible2)
+    COM_INTERFACE_ENTRY(IAccessibleHyperlink)
+    COM_INTERFACE_ENTRY(IAccessibleHypertext)
     COM_INTERFACE_ENTRY(IAccessibleImage)
     COM_INTERFACE_ENTRY(IAccessibleTable)
     COM_INTERFACE_ENTRY(IAccessibleTable2)
     COM_INTERFACE_ENTRY(IAccessibleTableCell)
-    COM_INTERFACE_ENTRY(IAccessibleText)
     COM_INTERFACE_ENTRY(IAccessibleValue)
     COM_INTERFACE_ENTRY(IServiceProvider)
     COM_INTERFACE_ENTRY(ISimpleDOMDocument)
     COM_INTERFACE_ENTRY(ISimpleDOMNode)
     COM_INTERFACE_ENTRY(ISimpleDOMText)
   END_COM_MAP()
 
+  // Represents a non-static text node in IAccessibleHypertext. This character
+  // is embedded in the response to IAccessibleText::get_text, indicating the
+  // position where a non-static text child object appears.
+  CONTENT_EXPORT static const char16 kEmbeddedCharacter[];
+
   CONTENT_EXPORT BrowserAccessibilityWin();
 
   CONTENT_EXPORT virtual ~BrowserAccessibilityWin();
 
   //
   // BrowserAccessibility methods.
   //
-  CONTENT_EXPORT virtual void Initialize();
-  CONTENT_EXPORT virtual void SendNodeUpdateEvents();
+  CONTENT_EXPORT virtual void PreInitialize();
+CONTENT_EXPORT virtual void PostInitialize();
   CONTENT_EXPORT virtual void NativeAddReference();
   CONTENT_EXPORT virtual void NativeReleaseReference();
 
   //
   // IAccessible methods.
   //
 
   // Performs the default action on a given object.
   CONTENT_EXPORT STDMETHODIMP accDoDefaultAction(VARIANT var_id);
 
@@ skipping 378 matching lines @@
     return E_NOTIMPL;
   }
   CONTENT_EXPORT STDMETHODIMP get_characterExtents(LONG offset,
       enum IA2CoordinateType coord_type,
       LONG* x, LONG* y,
       LONG* width, LONG* height) {
     return E_NOTIMPL;
   }
 
   //
+  // IAccessibleHypertext methods.
+  //
+
+  CONTENT_EXPORT STDMETHODIMP get_nHyperlinks(long* hyperlink_count);
+
+  CONTENT_EXPORT STDMETHODIMP get_hyperlink(
+      long index,
+      IAccessibleHyperlink** hyperlink);
+
+  CONTENT_EXPORT STDMETHODIMP get_hyperlinkIndex(long char_index,
+      long* hyperlink_index);
+
+  // IAccessibleHyperlink not implemented.
+  CONTENT_EXPORT STDMETHODIMP get_anchor(long index, VARIANT* anchor) {
+    return E_NOTIMPL;
+  }
+  CONTENT_EXPORT STDMETHODIMP get_anchorTarget(
+      long index,
+      VARIANT* anchor_target) {
+    return E_NOTIMPL;
+  }
+  CONTENT_EXPORT STDMETHODIMP get_startIndex( long* index) {
+    return E_NOTIMPL;
+  }
+  CONTENT_EXPORT STDMETHODIMP get_endIndex( long* index) {
+    return E_NOTIMPL;
+  }
+  CONTENT_EXPORT STDMETHODIMP get_valid(boolean* valid) {
+    return E_NOTIMPL;
+  }
+
+  // IAccessibleAction not implemented.
+  CONTENT_EXPORT STDMETHODIMP nActions(long* n_actions) {
+    return E_NOTIMPL;
+  }
+  CONTENT_EXPORT STDMETHODIMP doAction(long action_index) {
+    return E_NOTIMPL;
+  }
+  CONTENT_EXPORT STDMETHODIMP get_description(
+      long action_index,
+      BSTR* description) {
+    return E_NOTIMPL;
+  }
+  CONTENT_EXPORT STDMETHODIMP get_keyBinding(
+      long action_index,
+      long n_max_bindings,
+      BSTR** key_bindings,
+      long* n_bindings) {
+    return E_NOTIMPL;
+  }
+  CONTENT_EXPORT STDMETHODIMP get_name(long action_index, BSTR* name) {
+    return E_NOTIMPL;
+  }
+  CONTENT_EXPORT STDMETHODIMP get_localizedName(
+      long action_index,
+      BSTR* localized_name) {
+    return E_NOTIMPL;
+  }
+
+  //
   // IAccessibleValue methods.
   //
 
   CONTENT_EXPORT STDMETHODIMP get_currentValue(VARIANT* value);
 
   CONTENT_EXPORT STDMETHODIMP get_minimumValue(VARIANT* value);
 
   CONTENT_EXPORT STDMETHODIMP get_maximumValue(VARIANT* value);
 
   CONTENT_EXPORT STDMETHODIMP setCurrentValue(VARIANT new_value);
@@ skipping 223 matching lines @@
   // previous_text_ except that it's NOT updated when the object
   // is initialized again but the text doesn't change.
   string16 old_text_;
 
   // The previous state, used to see if there was a state change.
   int32 old_ia_state_;
 
   // Relationships between this node and other nodes.
   std::vector<BrowserAccessibilityRelation*> relations_;
 
+  // The text of this node including embedded hyperlink characters.
+  string16 hypertext_;
+
+  // Maps the |hypertext_| embedded character offset to an index in
+  // |hyperlinks_|.
+  std::map<int32, int32> hyperlink_offset_to_index_;
+
+  // Collection of non-static text child indicies, each of which corresponds to
+  // a hyperlink.
+  std::vector<int32> hyperlinks_;
+
   // Give BrowserAccessibility::Create access to our constructor.
   friend class BrowserAccessibility;
   friend class BrowserAccessibilityRelation;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityWin);
 };
 
 #endif  // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_WIN_H_