mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Valentin SherginandFacebook Github Bot
ce9cf3795a
Summary: This is C++ part of the implementation of Fabric-compatible <TextInput> component on iOS. Changelog: [Internal] Fabric-specific internal change. Reviewed By: JoshuaGross Differential Revision: D19169987 fbshipit-source-id: e2eac9beac6d1e124b5176b4a23676b8e05490c3
95 lines
3.0 KiB
C++
95 lines
3.0 KiB
C++
/*
|
|
* Copyright (c) Facebook, Inc. and its affiliates.
|
|
*
|
|
* This source code is licensed under the MIT license found in the
|
|
* LICENSE file in the root directory of this source tree.
|
|
*/
|
|
|
|
#include "TextInputShadowNode.h"
|
|
|
|
#include <react/attributedstring/AttributedStringBox.h>
|
|
#include <react/attributedstring/TextAttributes.h>
|
|
#include <react/core/LayoutConstraints.h>
|
|
#include <react/core/LayoutContext.h>
|
|
#include <react/core/conversions.h>
|
|
|
|
namespace facebook {
|
|
namespace react {
|
|
|
|
extern char const TextInputComponentName[] = "TextInput";
|
|
|
|
AttributedStringBox TextInputShadowNode::attributedStringBoxToMeasure() const {
|
|
bool hasMeaningfulState = getState() && getStateData().revision != 0;
|
|
|
|
if (hasMeaningfulState) {
|
|
auto attributedStringBox = getStateData().attributedStringBox;
|
|
if (attributedStringBox.getMode() ==
|
|
AttributedStringBox::Mode::OpaquePointer ||
|
|
!attributedStringBox.getValue().isEmpty()) {
|
|
return getStateData().attributedStringBox;
|
|
}
|
|
}
|
|
|
|
auto attributedString =
|
|
hasMeaningfulState ? AttributedString{} : getAttributedString();
|
|
|
|
if (attributedString.isEmpty()) {
|
|
auto placeholder = getProps()->placeholder;
|
|
// Note: `zero-width space` is insufficient in some cases (e.g. when we need
|
|
// to measure the "hight" of the font).
|
|
auto string = !placeholder.empty() ? placeholder : "I";
|
|
auto textAttributes = getProps()->getEffectiveTextAttributes();
|
|
attributedString.appendFragment({string, textAttributes, {}});
|
|
}
|
|
|
|
return AttributedStringBox{attributedString};
|
|
}
|
|
|
|
AttributedString TextInputShadowNode::getAttributedString() const {
|
|
auto textAttributes = getProps()->getEffectiveTextAttributes();
|
|
auto attributedString = AttributedString{};
|
|
|
|
attributedString.appendFragment(
|
|
AttributedString::Fragment{getProps()->text, textAttributes});
|
|
|
|
attributedString.appendAttributedString(
|
|
BaseTextShadowNode::getAttributedString(textAttributes, *this));
|
|
return attributedString;
|
|
}
|
|
|
|
void TextInputShadowNode::setTextLayoutManager(
|
|
TextLayoutManager::Shared const &textLayoutManager) {
|
|
ensureUnsealed();
|
|
textLayoutManager_ = textLayoutManager;
|
|
}
|
|
|
|
void TextInputShadowNode::updateStateIfNeeded() {
|
|
ensureUnsealed();
|
|
|
|
if (!getState() || getStateData().revision == 0) {
|
|
auto state = TextInputState{};
|
|
state.attributedStringBox = AttributedStringBox{getAttributedString()};
|
|
state.paragraphAttributes = getProps()->paragraphAttributes;
|
|
state.layoutManager = textLayoutManager_;
|
|
state.revision = 1;
|
|
setStateData(std::move(state));
|
|
}
|
|
}
|
|
|
|
#pragma mark - LayoutableShadowNode
|
|
|
|
Size TextInputShadowNode::measure(LayoutConstraints layoutConstraints) const {
|
|
return textLayoutManager_->measure(
|
|
attributedStringBoxToMeasure(),
|
|
getProps()->getEffectiveParagraphAttributes(),
|
|
layoutConstraints);
|
|
}
|
|
|
|
void TextInputShadowNode::layout(LayoutContext layoutContext) {
|
|
updateStateIfNeeded();
|
|
ConcreteViewShadowNode::layout(layoutContext);
|
|
}
|
|
|
|
} // namespace react
|
|
} // namespace facebook
|