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f876bd5710
* split `children` into two ordered lists: traversal and hit test * address comments * reduce node object byte size * link to DebugSemanticsDumpOrder
63 lines
2.0 KiB
C++
63 lines
2.0 KiB
C++
// Copyright 2016 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_SEMANTICS_SEMANTICS_UPDATE_BUILDER_H_
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#define FLUTTER_LIB_UI_SEMANTICS_SEMANTICS_UPDATE_BUILDER_H_
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#include "flutter/lib/ui/semantics/semantics_update.h"
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#include "lib/tonic/dart_wrappable.h"
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#include "lib/tonic/typed_data/float64_list.h"
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#include "lib/tonic/typed_data/int32_list.h"
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namespace blink {
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class SemanticsUpdateBuilder
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: public fxl::RefCountedThreadSafe<SemanticsUpdateBuilder>,
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public tonic::DartWrappable {
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DEFINE_WRAPPERTYPEINFO();
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FRIEND_MAKE_REF_COUNTED(SemanticsUpdateBuilder);
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public:
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static fxl::RefPtr<SemanticsUpdateBuilder> create() {
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return fxl::MakeRefCounted<SemanticsUpdateBuilder>();
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}
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~SemanticsUpdateBuilder() override;
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void updateNode(int id,
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int flags,
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int actions,
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int textSelectionBase,
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int textSelectionExtent,
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double scrollPosition,
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double scrollExtentMax,
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double scrollExtentMin,
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double left,
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double top,
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double right,
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double bottom,
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std::string label,
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std::string hint,
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std::string value,
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std::string increasedValue,
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std::string decreasedValue,
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int textDirection,
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const tonic::Float64List& transform,
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const tonic::Int32List& childrenInTraversalOrder,
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const tonic::Int32List& childrenInHitTestOrder);
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fxl::RefPtr<SemanticsUpdate> build();
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static void RegisterNatives(tonic::DartLibraryNatives* natives);
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private:
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explicit SemanticsUpdateBuilder();
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SemanticsNodeUpdates nodes_;
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};
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} // namespace blink
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#endif // FLUTTER_LIB_UI_SEMANTICS_SEMANTICS_UPDATE_BUILDER_H_
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