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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 WEBKIT_GLUE_WEBACCESSIBILITY_H_ | 5 #ifndef CONTENT_COMMON_ACCESSIBILITY_NODE_DATA_H_ |
| 6 #define WEBKIT_GLUE_WEBACCESSIBILITY_H_ | 6 #define CONTENT_COMMON_ACCESSIBILITY_NODE_DATA_H_ |
| 7 | 7 |
| 8 #include <map> | 8 #include <map> |
| 9 #include <string> | 9 #include <string> |
| 10 #include <vector> | 10 #include <vector> |
| 11 | 11 |
| 12 #include "base/string16.h" | 12 #include "base/string16.h" |
| 13 #include "content/common/content_export.h" |
| 13 #include "ui/gfx/rect.h" | 14 #include "ui/gfx/rect.h" |
| 14 #include "webkit/glue/webkit_glue_export.h" | |
| 15 | 15 |
| 16 namespace WebKit { | 16 namespace content { |
| 17 class WebAccessibilityObject; | |
| 18 } | |
| 19 | |
| 20 namespace webkit_glue { | |
| 21 | 17 |
| 22 // A compact representation of the accessibility information for a | 18 // A compact representation of the accessibility information for a |
| 23 // single web object, in a form that can be serialized and sent from | 19 // single web object, in a form that can be serialized and sent from |
| 24 // the renderer process to the browser process. | 20 // the renderer process to the browser process. |
| 25 struct WEBKIT_GLUE_EXPORT WebAccessibility { | 21 struct CONTENT_EXPORT AccessibilityNodeData { |
| 26 public: | |
| 27 // An enumeration of accessibility roles. | 22 // An enumeration of accessibility roles. |
| 28 enum Role { | 23 enum Role { |
| 29 ROLE_UNKNOWN = 0, | 24 ROLE_UNKNOWN = 0, |
| 30 | 25 |
| 31 // Used by Chromium to distinguish between the root of the tree | 26 // Used by Chromium to distinguish between the root of the tree |
| 32 // for this page, and a web area for a frame within this page. | 27 // for this page, and a web area for a frame within this page. |
| 33 ROLE_ROOT_WEB_AREA, | 28 ROLE_ROOT_WEB_AREA, |
| 34 | 29 |
| 35 // These roles all directly correspond to WebKit accessibility roles, | 30 // These roles all directly correspond to WebKit accessibility roles, |
| 36 // keep these alphabetical. | 31 // keep these alphabetical. |
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| 243 ATTR_LIVE_ATOMIC, | 238 ATTR_LIVE_ATOMIC, |
| 244 ATTR_LIVE_BUSY, | 239 ATTR_LIVE_BUSY, |
| 245 | 240 |
| 246 // ARIA readonly flag. | 241 // ARIA readonly flag. |
| 247 ATTR_ARIA_READONLY, | 242 ATTR_ARIA_READONLY, |
| 248 | 243 |
| 249 // Writeable attributes | 244 // Writeable attributes |
| 250 ATTR_CAN_SET_VALUE, | 245 ATTR_CAN_SET_VALUE, |
| 251 }; | 246 }; |
| 252 | 247 |
| 253 enum IncludeChildren { | 248 AccessibilityNodeData(); |
| 254 NO_CHILDREN, | 249 ~AccessibilityNodeData(); |
| 255 INCLUDE_CHILDREN | |
| 256 }; | |
| 257 | |
| 258 enum IncludeLineBreaks { | |
| 259 NO_LINE_BREAKS, | |
| 260 INCLUDE_LINE_BREAKS | |
| 261 }; | |
| 262 | |
| 263 // Empty constructor, for serialization. | |
| 264 WebAccessibility(); | |
| 265 | |
| 266 // Construct from a WebAccessibilityObject. Recursively creates child | |
| 267 // nodes as needed to complete the tree. | |
| 268 WebAccessibility(const WebKit::WebAccessibilityObject& src, | |
| 269 IncludeChildren include_children, | |
| 270 IncludeLineBreaks include_line_breaks); | |
| 271 | |
| 272 ~WebAccessibility(); | |
| 273 | |
| 274 // Initialize an already-created struct, same as the constructor above. | |
| 275 void Init(const WebKit::WebAccessibilityObject& src, | |
| 276 IncludeChildren include_children, | |
| 277 IncludeLineBreaks include_line_breaks); | |
| 278 | 250 |
| 279 #ifndef NDEBUG | 251 #ifndef NDEBUG |
| 280 std::string DebugString(bool recursive) const; | 252 std::string DebugString(bool recursive) const; |
| 281 #endif | 253 #endif |
| 282 | 254 |
| 283 private: | |
| 284 // Returns true if |ancestor| is the first unignored parent of |child|, | |
| 285 // which means that when walking up the parent chain from |child|, | |
| 286 // |ancestor| is the *first* ancestor that isn't marked as | |
| 287 // accessibilityIsIgnored(). | |
| 288 bool IsParentUnignoredOf(const WebKit::WebAccessibilityObject& ancestor, | |
| 289 const WebKit::WebAccessibilityObject& child); | |
| 290 | |
| 291 public: | |
| 292 // This is a simple serializable struct. All member variables should be | 255 // This is a simple serializable struct. All member variables should be |
| 293 // copyable. | 256 // public and copyable. |
| 294 int32 id; | 257 int32 id; |
| 295 string16 name; | 258 string16 name; |
| 296 string16 value; | 259 string16 value; |
| 297 Role role; | 260 Role role; |
| 298 uint32 state; | 261 uint32 state; |
| 299 gfx::Rect location; | 262 gfx::Rect location; |
| 300 std::map<StringAttribute, string16> string_attributes; | 263 std::map<StringAttribute, string16> string_attributes; |
| 301 std::map<IntAttribute, int32> int_attributes; | 264 std::map<IntAttribute, int32> int_attributes; |
| 302 std::map<FloatAttribute, float> float_attributes; | 265 std::map<FloatAttribute, float> float_attributes; |
| 303 std::map<BoolAttribute, bool> bool_attributes; | 266 std::map<BoolAttribute, bool> bool_attributes; |
| 304 std::vector<WebAccessibility> children; | 267 std::vector<AccessibilityNodeData> children; |
| 305 std::vector<int32> indirect_child_ids; | 268 std::vector<int32> indirect_child_ids; |
| 306 std::vector<std::pair<string16, string16> > html_attributes; | 269 std::vector<std::pair<string16, string16> > html_attributes; |
| 307 std::vector<int32> line_breaks; | 270 std::vector<int32> line_breaks; |
| 308 | 271 |
| 309 // For a table, the cell ids in row-major order, with duplicate entries | 272 // For a table, the cell ids in row-major order, with duplicate entries |
| 310 // when there's a rowspan or colspan, and with -1 for missing cells. | 273 // when there's a rowspan or colspan, and with -1 for missing cells. |
| 311 // There are always exactly rows * columns entries. | 274 // There are always exactly rows * columns entries. |
| 312 std::vector<int32> cell_ids; | 275 std::vector<int32> cell_ids; |
| 313 | 276 |
| 314 // For a table, the unique cell ids in row-major order of their first | 277 // For a table, the unique cell ids in row-major order of their first |
| 315 // occurrence. | 278 // occurrence. |
| 316 std::vector<int32> unique_cell_ids; | 279 std::vector<int32> unique_cell_ids; |
| 317 }; | 280 }; |
| 318 | 281 |
| 319 } // namespace webkit_glue | 282 } // namespace content |
| 320 | 283 |
| 321 #endif // WEBKIT_GLUE_WEBACCESSIBILITY_H_ | 284 #endif // CONTENT_COMMON_ACCESSIBILITY_NODE_DATA_H_ |
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