| /* |
| * Copyright (C) 2018 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #pragma once |
| |
| #if ENABLE(LAYOUT_FORMATTING_CONTEXT) |
| |
| #include "InlineItem.h" |
| #include "LayoutUnits.h" |
| #include <wtf/text/TextBreakIterator.h> |
| |
| namespace WebCore { |
| |
| class RenderStyle; |
| |
| namespace Layout { |
| |
| class InlineTextBox; |
| class InlineTextItem; |
| |
| class TextUtil { |
| public: |
| static InlineLayoutUnit width(const InlineTextItem&, unsigned from, unsigned to, InlineLayoutUnit contentLogicalLeft = 0); |
| static InlineLayoutUnit width(const InlineTextBox&, unsigned from, unsigned to, InlineLayoutUnit contentLogicalLeft = 0); |
| struct SplitData { |
| unsigned start { 0 }; |
| unsigned length { 0 }; |
| InlineLayoutUnit logicalWidth { 0 }; |
| }; |
| static SplitData split(const InlineTextBox&, unsigned startPosition, unsigned length, InlineLayoutUnit textWidth, InlineLayoutUnit availableWidth, InlineLayoutUnit contentLogicalLeft); |
| static bool shouldPreserveTrailingWhitespace(const RenderStyle&); |
| static unsigned findNextBreakablePosition(LazyLineBreakIterator&, unsigned startPosition, const RenderStyle&); |
| |
| private: |
| static InlineLayoutUnit fixedPitchWidth(const StringView&, const RenderStyle&, unsigned from, unsigned to, InlineLayoutUnit contentLogicalLeft); |
| }; |
| |
| inline bool TextUtil::shouldPreserveTrailingWhitespace(const RenderStyle& style) |
| { |
| auto whitespace = style.whiteSpace(); |
| return whitespace == WhiteSpace::Pre || whitespace == WhiteSpace::PreWrap || whitespace == WhiteSpace::BreakSpaces; |
| } |
| |
| } |
| } |
| #endif |