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https://github.com/flutter/flutter.git
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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
87 lines
3.5 KiB
C++
87 lines
3.5 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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#include "flutter/lib/ui/semantics/semantics_update_builder.h"
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#include "lib/tonic/converter/dart_converter.h"
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#include "lib/tonic/dart_args.h"
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#include "lib/tonic/dart_binding_macros.h"
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#include "lib/tonic/dart_library_natives.h"
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namespace blink {
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static void SemanticsUpdateBuilder_constructor(Dart_NativeArguments args) {
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DartCallConstructor(&SemanticsUpdateBuilder::create, args);
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}
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IMPLEMENT_WRAPPERTYPEINFO(ui, SemanticsUpdateBuilder);
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#define FOR_EACH_BINDING(V) \
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V(SemanticsUpdateBuilder, updateNode) \
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V(SemanticsUpdateBuilder, build)
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FOR_EACH_BINDING(DART_NATIVE_CALLBACK)
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void SemanticsUpdateBuilder::RegisterNatives(
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tonic::DartLibraryNatives* natives) {
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natives->Register({{"SemanticsUpdateBuilder_constructor",
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SemanticsUpdateBuilder_constructor, 1, true},
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FOR_EACH_BINDING(DART_REGISTER_NATIVE)});
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}
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SemanticsUpdateBuilder::SemanticsUpdateBuilder() = default;
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SemanticsUpdateBuilder::~SemanticsUpdateBuilder() = default;
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void SemanticsUpdateBuilder::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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SemanticsNode node;
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node.id = id;
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node.flags = flags;
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node.actions = actions;
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node.textSelectionBase = textSelectionBase;
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node.textSelectionExtent = textSelectionExtent;
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node.scrollPosition = scrollPosition;
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node.scrollExtentMax = scrollExtentMax;
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node.scrollExtentMin = scrollExtentMin;
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node.rect = SkRect::MakeLTRB(left, top, right, bottom);
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node.label = label;
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node.hint = hint;
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node.value = value;
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node.increasedValue = increasedValue;
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node.decreasedValue = decreasedValue;
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node.textDirection = textDirection;
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node.transform.setColMajord(transform.data());
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node.childrenInTraversalOrder = std::vector<int32_t>(
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childrenInTraversalOrder.data(), childrenInTraversalOrder.data() + childrenInTraversalOrder.num_elements());
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node.childrenInHitTestOrder = std::vector<int32_t>(
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childrenInHitTestOrder.data(), childrenInHitTestOrder.data() + childrenInHitTestOrder.num_elements());
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nodes_[id] = node;
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}
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fxl::RefPtr<SemanticsUpdate> SemanticsUpdateBuilder::build() {
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return SemanticsUpdate::create(std::move(nodes_));
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}
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} // namespace blink
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