| // Copyright 2018 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. |
| |
| #include "third_party/blink/renderer/core/layout/ng/inline/ng_line_utils.h" |
| |
| #include "third_party/blink/renderer/core/editing/position_with_affinity.h" |
| #include "third_party/blink/renderer/core/layout/ng/inline/ng_caret_position.h" |
| |
| namespace blink { |
| |
| NGInlineCursor NGContainingLineBoxOf(const PositionWithAffinity& position) { |
| const NGCaretPosition caret_position = ComputeNGCaretPosition(position); |
| if (caret_position.IsNull()) |
| return NGInlineCursor(); |
| NGInlineCursor line = caret_position.cursor; |
| line.MoveToContainingLine(); |
| return line; |
| } |
| |
| bool InSameNGLineBox(const PositionWithAffinity& position1, |
| const PositionWithAffinity& position2) { |
| const NGInlineCursor& line_box1 = NGContainingLineBoxOf(position1); |
| if (!line_box1) |
| return false; |
| |
| const NGInlineCursor& line_box2 = NGContainingLineBoxOf(position2); |
| return line_box1 == line_box2; |
| } |
| |
| } // namespace blink |
