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58e84c8bf0
* Re-land "Support multiple shells in a single process. (#4932)" This reverts commit 723c7d01439da4261bc836075fb55651ce9e7f03.
80 lines
2.4 KiB
C++
80 lines
2.4 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_H_
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#define FLUTTER_LIB_UI_TEXT_PARAGRAPH_H_
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#include "flutter/fml/message_loop.h"
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#include "flutter/lib/ui/painting/canvas.h"
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#include "flutter/lib/ui/text/paragraph_impl.h"
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#include "flutter/lib/ui/text/paragraph_impl_blink.h"
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#include "flutter/lib/ui/text/paragraph_impl_txt.h"
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#include "flutter/lib/ui/text/text_box.h"
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#include "flutter/sky/engine/core/rendering/RenderView.h"
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#include "flutter/sky/engine/wtf/PassOwnPtr.h"
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#include "flutter/third_party/txt/src/txt/paragraph.h"
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#include "lib/tonic/dart_wrappable.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 : public fxl::RefCountedThreadSafe<Paragraph>,
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public tonic::DartWrappable {
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DEFINE_WRAPPERTYPEINFO();
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FRIEND_MAKE_REF_COUNTED(Paragraph);
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public:
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static fxl::RefPtr<Paragraph> Create(PassOwnPtr<RenderView> renderView) {
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return fxl::MakeRefCounted<Paragraph>(renderView);
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}
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static fxl::RefPtr<Paragraph> Create(
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std::unique_ptr<txt::Paragraph> paragraph) {
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return fxl::MakeRefCounted<Paragraph>(std::move(paragraph));
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}
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~Paragraph() override;
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double width();
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double height();
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double minIntrinsicWidth();
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double maxIntrinsicWidth();
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double alphabeticBaseline();
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double ideographicBaseline();
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bool didExceedMaxLines();
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void layout(double width);
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void paint(Canvas* canvas, double x, double y);
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std::vector<TextBox> getRectsForRange(unsigned start, unsigned end);
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Dart_Handle getPositionForOffset(double dx, double dy);
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Dart_Handle getWordBoundary(unsigned offset);
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RenderView* renderView() const { return m_renderView.get(); }
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virtual size_t GetAllocationSize() override;
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static void RegisterNatives(tonic::DartLibraryNatives* natives);
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private:
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std::unique_ptr<ParagraphImpl> m_paragraphImpl;
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explicit Paragraph(PassOwnPtr<RenderView> renderView);
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explicit Paragraph(std::unique_ptr<txt::Paragraph> paragraph);
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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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};
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} // namespace blink
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#endif // FLUTTER_LIB_UI_TEXT_PARAGRAPH_H_
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