Files
react-native/ReactCommon/react/renderer/components/textinput/iostextinput/TextInputShadowNode.h
T
Andres Suarez 8bd3edec88 Update copyright headers from Facebook to Meta
Reviewed By: aaronabramov

Differential Revision: D33367752

fbshipit-source-id: 4ce94d184485e5ee0a62cf67ad2d3ba16e285c8f
2021-12-30 15:11:21 -08:00

84 lines
2.8 KiB
C++

/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#pragma once
#include <react/renderer/attributedstring/AttributedString.h>
#include <react/renderer/components/iostextinput/TextInputEventEmitter.h>
#include <react/renderer/components/iostextinput/TextInputProps.h>
#include <react/renderer/components/iostextinput/TextInputState.h>
#include <react/renderer/components/text/BaseTextShadowNode.h>
#include <react/renderer/components/view/ConcreteViewShadowNode.h>
#include <react/renderer/textlayoutmanager/TextLayoutManager.h>
#include <react/utils/ContextContainer.h>
namespace facebook {
namespace react {
extern const char TextInputComponentName[];
/*
* `ShadowNode` for <TextInput> component.
*/
class TextInputShadowNode final : public ConcreteViewShadowNode<
TextInputComponentName,
TextInputProps,
TextInputEventEmitter,
TextInputState>,
public BaseTextShadowNode {
public:
using ConcreteViewShadowNode::ConcreteViewShadowNode;
static ShadowNodeTraits BaseTraits() {
auto traits = ConcreteViewShadowNode::BaseTraits();
traits.set(ShadowNodeTraits::Trait::TextKind);
traits.set(ShadowNodeTraits::Trait::LeafYogaNode);
traits.set(ShadowNodeTraits::Trait::MeasurableYogaNode);
return traits;
}
/*
* Associates a shared `TextLayoutManager` with the node.
* `TextInputShadowNode` uses the manager to measure text content
* and construct `TextInputState` objects.
*/
void setTextLayoutManager(
std::shared_ptr<TextLayoutManager const> textLayoutManager);
#pragma mark - LayoutableShadowNode
Size measureContent(
LayoutContext const &layoutContext,
LayoutConstraints const &layoutConstraints) const override;
void layout(LayoutContext layoutContext) override;
private:
/*
* Creates a `State` object if needed.
*/
void updateStateIfNeeded(LayoutContext const &layoutContext);
/*
* Returns a `AttributedString` which represents text content of the node.
*/
AttributedString getAttributedString(
LayoutContext const &layoutContext) const;
/*
* Returns an `AttributedStringBox` which represents text content that should
* be used for measuring purposes. It might contain actual text value,
* placeholder value or some character that represents the size of the font.
*/
AttributedStringBox attributedStringBoxToMeasure(
LayoutContext const &layoutContext) const;
std::shared_ptr<TextLayoutManager const> textLayoutManager_;
};
} // namespace react
} // namespace facebook