Index: third_party/WebKit/Source/core/layout/ng/ng_column_mapper.h |
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_column_mapper.h b/third_party/WebKit/Source/core/layout/ng/ng_column_mapper.h |
deleted file mode 100644 |
index b4ab09f918c4ee7ce7c22075180d1b81a8cfd928..0000000000000000000000000000000000000000 |
--- a/third_party/WebKit/Source/core/layout/ng/ng_column_mapper.h |
+++ /dev/null |
@@ -1,82 +0,0 @@ |
-// 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 NGColumnMapper_h |
-#define NGColumnMapper_h |
- |
-#include "core/CoreExport.h" |
-#include "core/layout/ng/ng_block_break_token.h" |
-#include "platform/heap/Handle.h" |
- |
-namespace blink { |
- |
-// Keeps track of the current column, and is used to map offsets from the |
-// coordinate established by the fragmented flow [1] to visual coordinates. |
-// |
-// [1] https://drafts.csswg.org/css-break/#fragmented-flow |
-// |
-// TODO(mstensho): Add a NGFragmentainerMapper super class. There are other |
-// fragmentation types than multicol (regions, pagination for printing). |
-class CORE_EXPORT NGColumnMapper |
- : public GarbageCollectedFinalized<NGColumnMapper> { |
- public: |
- NGColumnMapper(LayoutUnit inline_progression, LayoutUnit block_size) |
- : inline_progression_(inline_progression), block_size_(block_size) {} |
- |
- // Column block length. |
- LayoutUnit BlockSize() const { return block_size_; } |
- |
- // Offset for next break, in the fragmented flow coordinate space. |
- LayoutUnit NextBreakOffset() const { |
- return last_break_block_offset_ + block_size_; |
- } |
- |
- // Convert an offset in the fragmented flow coordinate space to the visual |
- // coordinate space. |
- void ToVisualOffset(NGLogicalOffset& offset) { |
- offset.inline_offset += inline_offset_; |
- offset.block_offset -= last_break_block_offset_; |
- } |
- |
- // Specify where in the content to start layout of the next column. |
- void SetBreakToken(NGBlockBreakToken* token) { |
- DCHECK(!break_token_); |
- break_token_ = token; |
- } |
- bool HasBreakToken() const { return break_token_; } |
- |
- // Advance to the next column. Returns the break token to resume at. If |
- // nullptr is returned, there's no more content to process. |
- NGBlockBreakToken* Advance() { |
- NGBlockBreakToken* token = break_token_; |
- break_token_ = nullptr; |
- if (token) { |
- inline_offset_ += inline_progression_; |
- last_break_block_offset_ += block_size_; |
- } |
- return token; |
- } |
- |
- DEFINE_INLINE_TRACE() { visitor->trace(break_token_); } |
- |
- private: |
- // Where to resume in the next column. |
- Member<NGBlockBreakToken> break_token_; |
- |
- // The sum of used column-width and column_gap. |
- LayoutUnit inline_progression_; |
- |
- // Inline offset to the current column. |
- LayoutUnit inline_offset_; |
- |
- // Block size of a column. |
- LayoutUnit block_size_; |
- |
- // Amount of content held by previous columns. |
- LayoutUnit last_break_block_offset_; |
-}; |
- |
-} // namespace blink |
- |
-#endif // NGColumnMapper_h |