Support accessible inline text boxes.

content/common/accessibility_node_data.h

 // Copyright (c) 2012 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_COMMON_ACCESSIBILITY_NODE_DATA_H_
 #define CONTENT_COMMON_ACCESSIBILITY_NODE_DATA_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 70 matching lines @@
 
     // Tree control attributes.
     ATTR_HIERARCHICAL_LEVEL,
 
     // Relationships between this element and other elements.
     ATTR_TITLE_UI_ELEMENT,
 
     // Color value for WebKit::WebAXRoleColorWell, each component is 0..255
     ATTR_COLOR_VALUE_RED,
     ATTR_COLOR_VALUE_GREEN,
-    ATTR_COLOR_VALUE_BLUE
+    ATTR_COLOR_VALUE_BLUE,
+
+    // Inline text attributes.
+    ATTR_TEXT_DIRECTION
   };
 
   enum FloatAttribute {
     // Document attributes.
     ATTR_DOC_LOADING_PROGRESS,
 
     // Range attributes.
     ATTR_VALUE_FOR_RANGE,
     ATTR_MIN_VALUE_FOR_RANGE,
     ATTR_MAX_VALUE_FOR_RANGE,
@@ skipping 36 matching lines @@
     // Character indices where line breaks occur.
     ATTR_LINE_BREAKS,
 
     // For a table, the cell ids in row-major order, with duplicate entries
     // when there's a rowspan or colspan, and with -1 for missing cells.
     // There are always exactly rows * columns entries.
     ATTR_CELL_IDS,
 
     // For a table, the unique cell ids in row-major order of their first
     // occurrence.
-    ATTR_UNIQUE_CELL_IDS
+    ATTR_UNIQUE_CELL_IDS,
+
+    // For inline text. This is the pixel position of the end of this
+    // character within the bounding rectangle of this object, in the
+    // direction given by ATTR_TEXT_DIRECTION. For example, for left-to-right
+    // text, the first offset is the right coordinate of the first character
+    // within the object's bounds, the second offset is the right coordinate
+    // of the second character, and so on.
+    ATTR_CHARACTER_OFFSETS,
+
+    // For inline text. These int lists must be the same size; they represent
+    // the start and end character index of each word within this text.
+    ATTR_WORD_STARTS,
+    ATTR_WORD_ENDS,
   };
 
   AccessibilityNodeData();
   virtual ~AccessibilityNodeData();
 
   void AddStringAttribute(StringAttribute attribute,
                           const std::string& value);
   void AddIntAttribute(IntAttribute attribute, int value);
   void AddFloatAttribute(FloatAttribute attribute, float value);
   void AddBoolAttribute(BoolAttribute attribute, bool value);
   void AddIntListAttribute(IntListAttribute attribute,
                            const std::vector<int32>& value);
 
-  // Convenience function, mainly for writing unit tests.
+  // Convenience functions, mainly for writing unit tests.
   // Equivalent to AddStringAttribute(ATTR_NAME, name).
   void SetName(std::string name);
+  // Equivalent to AddStringAttribute(ATTR_VALUE, value).
+  void SetValue(std::string value);
 
   #ifndef NDEBUG
   virtual std::string DebugString(bool recursive) const;
   #endif
 
   // This is a simple serializable struct. All member variables should be
   // public and copyable.
   int32 id;
   WebKit::WebAXRole role;
   uint32 state;
@@ skipping 31 matching lines @@
 // build a tree of AccessibilityNodeDataTreeNode objects for easier
 // testing and debugging, where each node contains its children.
 // The |dst| argument will become the root of the new tree.
 void MakeAccessibilityNodeDataTree(
     const std::vector<AccessibilityNodeData>& src,
     AccessibilityNodeDataTreeNode* dst);
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_ACCESSIBILITY_NODE_DATA_H_