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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/react-native/ReactCommon/react/renderer/components/text
Просмотр файла: ParagraphProps.cpp

/*
 * 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.
 */

#include "ParagraphProps.h"

#include <react/featureflags/ReactNativeFeatureFlags.h>
#include <react/renderer/attributedstring/conversions.h>
#include <react/renderer/attributedstring/primitives.h>
#include <react/renderer/core/propsConversions.h>
#include <react/renderer/debug/debugStringConvertibleUtils.h>

#include <glog/logging.h>

namespace facebook::react {

ParagraphProps::ParagraphProps(
    const PropsParserContext& context,
    const ParagraphProps& sourceProps,
    const RawProps& rawProps)
    : ViewProps(context, sourceProps, rawProps),
      BaseTextProps(context, sourceProps, rawProps),
      paragraphAttributes(
          ReactNativeFeatureFlags::enableCppPropsIteratorSetter()
              ? sourceProps.paragraphAttributes
              : convertRawProp(
                    context,
                    rawProps,
                    sourceProps.paragraphAttributes,
                    {})),
      isSelectable(
          ReactNativeFeatureFlags::enableCppPropsIteratorSetter()
              ? sourceProps.isSelectable
              : convertRawProp(
                    context,
                    rawProps,
                    "selectable",
                    sourceProps.isSelectable,
                    false)),
      onTextLayout(
          ReactNativeFeatureFlags::enableCppPropsIteratorSetter()
              ? sourceProps.onTextLayout
              : convertRawProp(
                    context,
                    rawProps,
                    "onTextLayout",
                    sourceProps.onTextLayout,
                    {})) {
  /*
   * These props are applied to `View`, therefore they must not be a part of
   * base text attributes.
   */
  textAttributes.opacity = std::numeric_limits<Float>::quiet_NaN();
  textAttributes.backgroundColor = {};
};

void ParagraphProps::setProp(
    const PropsParserContext& context,
    RawPropsPropNameHash hash,
    const char* propName,
    const RawValue& value) {
  // All Props structs setProp methods must always, unconditionally,
  // call all super::setProp methods, since multiple structs may
  // reuse the same values.
  ViewProps::setProp(context, hash, propName, value);
  BaseTextProps::setProp(context, hash, propName, value);

  static auto defaults = ParagraphProps{};

  // ParagraphAttributes has its own switch statement - to keep all
  // of these fields together, and because there are some collisions between
  // propnames parsed here and outside of ParagraphAttributes.
  // This code is also duplicated in AndroidTextInput.
  static auto paDefaults = ParagraphAttributes{};
  switch (hash) {
    REBUILD_FIELD_SWITCH_CASE(
        paDefaults,
        value,
        paragraphAttributes,
        maximumNumberOfLines,
        "numberOfLines");
    REBUILD_FIELD_SWITCH_CASE(
        paDefaults, value, paragraphAttributes, ellipsizeMode, "ellipsizeMode");
    REBUILD_FIELD_SWITCH_CASE(
        paDefaults,
        value,
        paragraphAttributes,
        textBreakStrategy,
        "textBreakStrategy");
    REBUILD_FIELD_SWITCH_CASE(
        paDefaults,
        value,
        paragraphAttributes,
        adjustsFontSizeToFit,
        "adjustsFontSizeToFit");
    REBUILD_FIELD_SWITCH_CASE(
        paDefaults,
        value,
        paragraphAttributes,
        minimumFontScale,
        "minimumFontScale");
    REBUILD_FIELD_SWITCH_CASE(
        paDefaults,
        value,
        paragraphAttributes,
        minimumFontSize,
        "minimumFontSize");
    REBUILD_FIELD_SWITCH_CASE(
        paDefaults,
        value,
        paragraphAttributes,
        maximumFontSize,
        "maximumFontSize");
    REBUILD_FIELD_SWITCH_CASE(
        paDefaults,
        value,
        paragraphAttributes,
        includeFontPadding,
        "includeFontPadding");
    REBUILD_FIELD_SWITCH_CASE(
        paDefaults,
        value,
        paragraphAttributes,
        android_hyphenationFrequency,
        "android_hyphenationFrequency");
    REBUILD_FIELD_SWITCH_CASE(
        paDefaults,
        value,
        paragraphAttributes,
        textAlignVertical,
        "textAlignVertical");
  }

  switch (hash) {
    RAW_SET_PROP_SWITCH_CASE_BASIC(isSelectable);
    RAW_SET_PROP_SWITCH_CASE_BASIC(onTextLayout);
  }

  /*
   * These props are applied to `View`, therefore they must not be a part of
   * base text attributes.
   */
  textAttributes.opacity = std::numeric_limits<Float>::quiet_NaN();
  textAttributes.backgroundColor = {};
}

#pragma mark - DebugStringConvertible

#if RN_DEBUG_STRING_CONVERTIBLE
SharedDebugStringConvertibleList ParagraphProps::getDebugProps() const {
  return ViewProps::getDebugProps() + BaseTextProps::getDebugProps() +
      paragraphAttributes.getDebugProps() +
      SharedDebugStringConvertibleList{
          debugStringConvertibleItem("isSelectable", isSelectable)};
}
#endif

#ifdef RN_SERIALIZABLE_STATE

ComponentName ParagraphProps::getDiffPropsImplementationTarget() const {
  return "Paragraph";
}

folly::dynamic ParagraphProps::getDiffProps(const Props* prevProps) const {
  static const auto defaultProps = ParagraphProps();

  const ParagraphProps* oldProps = prevProps == nullptr
      ? &defaultProps
      : static_cast<const ParagraphProps*>(prevProps);

  folly::dynamic result = ViewProps::getDiffProps(oldProps);

  BaseTextProps::appendTextAttributesProps(result, oldProps);

  if (paragraphAttributes.maximumNumberOfLines !=
      oldProps->paragraphAttributes.maximumNumberOfLines) {
    result["numberOfLines"] = paragraphAttributes.maximumNumberOfLines;
  }

  if (paragraphAttributes.ellipsizeMode !=
      oldProps->paragraphAttributes.ellipsizeMode) {
    result["ellipsizeMode"] = toString(paragraphAttributes.ellipsizeMode);
  }

  if (paragraphAttributes.textBreakStrategy !=
      oldProps->paragraphAttributes.textBreakStrategy) {
    result["textBreakStrategy"] =
        toString(paragraphAttributes.textBreakStrategy);
  }

  if (paragraphAttributes.adjustsFontSizeToFit !=
      oldProps->paragraphAttributes.adjustsFontSizeToFit) {
    result["adjustsFontSizeToFit"] = paragraphAttributes.adjustsFontSizeToFit;
  }

  if (!floatEquality(
          paragraphAttributes.minimumFontScale,
          oldProps->paragraphAttributes.minimumFontScale)) {
    result["minimumFontScale"] = paragraphAttributes.minimumFontScale;
  }

  if (!floatEquality(
          paragraphAttributes.minimumFontSize,
          oldProps->paragraphAttributes.minimumFontSize)) {
    result["minimumFontSize"] = paragraphAttributes.minimumFontSize;
  }

  if (!floatEquality(
          paragraphAttributes.maximumFontSize,
          oldProps->paragraphAttributes.maximumFontSize)) {
    result["maximumFontSize"] = paragraphAttributes.maximumFontSize;
  }

  if (paragraphAttributes.includeFontPadding !=
      oldProps->paragraphAttributes.includeFontPadding) {
    result["includeFontPadding"] = paragraphAttributes.includeFontPadding;
  }

  if (paragraphAttributes.android_hyphenationFrequency !=
      oldProps->paragraphAttributes.android_hyphenationFrequency) {
    result["android_hyphenationFrequency"] =
        toString(paragraphAttributes.android_hyphenationFrequency);
  }

  if (paragraphAttributes.textAlignVertical !=
      oldProps->paragraphAttributes.textAlignVertical) {
    result["textAlignVertical"] =
        paragraphAttributes.textAlignVertical.has_value()
        ? toString(paragraphAttributes.textAlignVertical.value())
        : nullptr;
  }

  if (isSelectable != oldProps->isSelectable) {
    result["selectable"] = isSelectable;
  }

  if (onTextLayout != oldProps->onTextLayout) {
    result["onTextLayout"] = onTextLayout;
  }

  return result;
}

#endif
} // namespace facebook::react
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