| // Copyright 2017 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_PLATFORM_AX_PLATFORM_UNIQUE_ID_H_ |
| #define UI_ACCESSIBILITY_PLATFORM_AX_PLATFORM_UNIQUE_ID_H_ |
| |
| #include <stdint.h> |
| |
| #include "ui/accessibility/ax_export.h" |
| |
| namespace ui { |
| |
| // Each platform accessibility object has a unique id that's guaranteed to be a |
| // positive number. (It's stored in an int32_t as opposed to uint32_t because |
| // some platforms want to negate it, so we want to ensure the range is below the |
| // signed int max.) This can be used when the id has to be unique across |
| // multiple frames, since node ids are only unique within one tree. |
| int32_t AX_EXPORT GetNextAXPlatformNodeUniqueId(); |
| |
| } // namespace ui |
| |
| #endif // UI_ACCESSIBILITY_PLATFORM_AX_PLATFORM_UNIQUE_ID_H_ |
