| // 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 UI_ACCESSIBILITY_AX_TEXT_UTILS_H_ |
| #define UI_ACCESSIBILITY_AX_TEXT_UTILS_H_ |
| |
| #include <stddef.h> |
| |
| #include <vector> |
| |
| #include "base/strings/string16.h" |
| #include "ui/accessibility/ax_enums.mojom-forward.h" |
| #include "ui/accessibility/ax_export.h" |
| |
| namespace ui { |
| |
| // Convenience method needed to implement platform-specific text |
| // accessibility APIs like IAccessible2. Search forwards or backwards |
| // (depending on |direction|) from the given |start_offset| until the |
| // given boundary is found, and return the offset of that boundary, |
| // using the vector of line break character offsets in |line_breaks|. |
| AX_EXPORT size_t FindAccessibleTextBoundary(const base::string16& text, |
| const std::vector<int>& line_breaks, |
| ax::mojom::TextBoundary boundary, |
| size_t start_offset, |
| ax::mojom::MoveDirection direction, |
| ax::mojom::TextAffinity affinity); |
| |
| // Returns a string ID that corresponds to the name of the given action. |
| AX_EXPORT base::string16 ActionVerbToLocalizedString( |
| const ax::mojom::DefaultActionVerb action_verb); |
| |
| // Returns the non-localized string representation of a supported action. |
| // Some APIs on Linux and Windows need to return non-localized action names. |
| AX_EXPORT base::string16 ActionVerbToUnlocalizedString( |
| const ax::mojom::DefaultActionVerb action_verb); |
| |
| // Returns indices of all word starts in |text|. |
| AX_EXPORT std::vector<int> GetWordStartOffsets(const base::string16& text); |
| // Returns indices of all word ends in |text|. |
| AX_EXPORT std::vector<int> GetWordEndOffsets(const base::string16& text); |
| |
| } // namespace ui |
| |
| #endif // UI_ACCESSIBILITY_AX_TEXT_UTILS_H_ |