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58e84c8bf0
* Re-land "Support multiple shells in a single process. (#4932)" This reverts commit 723c7d01439da4261bc836075fb55651ce9e7f03.
81 lines
2.7 KiB
C++
81 lines
2.7 KiB
C++
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef FLUTTER_LIB_UI_TEXT_PARAGRAPH_BUILDER_H_
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#define FLUTTER_LIB_UI_TEXT_PARAGRAPH_BUILDER_H_
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#include <memory>
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#include "flutter/lib/ui/text/paragraph.h"
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#include "flutter/sky/engine/core/rendering/RenderObject.h"
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#include "flutter/sky/engine/wtf/OwnPtr.h"
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#include "flutter/third_party/txt/src/txt/paragraph_builder.h"
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#include "lib/tonic/dart_wrappable.h"
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#include "lib/tonic/typed_data/int32_list.h"
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namespace tonic {
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class DartLibraryNatives;
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} // namespace tonic
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namespace blink {
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class Paragraph;
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class ParagraphBuilder : public fxl::RefCountedThreadSafe<ParagraphBuilder>,
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public tonic::DartWrappable {
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DEFINE_WRAPPERTYPEINFO();
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FRIEND_MAKE_REF_COUNTED(ParagraphBuilder);
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public:
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static fxl::RefPtr<ParagraphBuilder> create(tonic::Int32List& encoded,
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const std::string& fontFamily,
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double fontSize,
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double lineHeight,
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const std::u16string& ellipsis,
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const std::string& locale,
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bool use_blink);
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~ParagraphBuilder() override;
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void pushStyle(tonic::Int32List& encoded,
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const std::string& fontFamily,
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double fontSize,
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double letterSpacing,
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double wordSpacing,
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double height,
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const std::string& locale);
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void pop();
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Dart_Handle addText(const std::u16string& text);
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fxl::RefPtr<Paragraph> build();
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static void RegisterNatives(tonic::DartLibraryNatives* natives);
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private:
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explicit ParagraphBuilder(tonic::Int32List& encoded,
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const std::string& fontFamily,
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double fontSize,
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double lineHeight,
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const std::u16string& ellipsis,
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const std::string& locale,
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bool use_blink);
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void createRenderView();
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// TODO: This can be removed when the render view association for the legacy
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// runtime is removed.
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fxl::RefPtr<fxl::TaskRunner> destruction_task_runner_ =
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UIDartState::Current()->GetTaskRunners().GetUITaskRunner();
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OwnPtr<RenderView> m_renderView;
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RenderObject* m_renderParagraph;
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RenderObject* m_currentRenderObject;
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std::unique_ptr<txt::ParagraphBuilder> m_paragraphBuilder;
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bool m_useBlink;
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};
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} // namespace blink
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#endif // FLUTTER_LIB_UI_TEXT_PARAGRAPH_BUILDER_H_
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