| // 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 THIRD_PARTY_BLINK_RENDERER_PLATFORM_TEXT_TRUNCATION_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_PLATFORM_TEXT_TRUNCATION_H_ |
| |
| #include <limits> |
| |
| namespace blink { |
| |
| // The two truncation values below are used as tokens representing truncation |
| // state for a text fragment (in LayoutNG) or text box (in legacy layout), are |
| // intended to be relative to |m_start|. They are set directly into |
| // |m_truncation|. In the case where there is some truncation of the text but it |
| // is not full, |m_truncation| is set to the character offset from |m_start| |
| // representing the characters that are not truncated. |
| // |
| // Thus the maximum possible length of the text displayed before an ellipsis in |
| // a single NGTextFragment or InlineTextBox is |
| // |std::numeric_limits<uint16_t>::max() - 2| to allow for the no-truncation and |
| // full-truncation states. |
| constexpr uint16_t kCNoTruncation = std::numeric_limits<uint16_t>::max(); |
| constexpr uint16_t kCFullTruncation = std::numeric_limits<uint16_t>::max() - 1; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_TEXT_TRUNCATION_H_ |
