mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Joshua Gross
2a46980535
Summary: For future diffs, we need to check AttributedStrings for equality. It turns out that any time props or state change, two `parentShadowView`s will never be equal to each other, even if we'd consider them equal for our use-cases here for AttributedStrings. Just compare the tags instead of the whole object. NOTE: I don't have any strong opinions about how we should be comparing them. It just isn't working currently for AndroidTextInput. Comparing tags seems convenient and reasonably correct for now. Changelog: [Internal] Reviewed By: shergin Differential Revision: D18786004 fbshipit-source-id: 13c0e881cd8d2c2a207e8891309b3c9b880b827f
124 lines
2.9 KiB
C++
124 lines
2.9 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#include "AttributedString.h"
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#include <react/debug/DebugStringConvertibleItem.h>
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namespace facebook {
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namespace react {
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using Fragment = AttributedString::Fragment;
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using Fragments = AttributedString::Fragments;
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#pragma mark - Fragment
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std::string Fragment::AttachmentCharacter() {
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return "\uFFFC"; // Unicode `OBJECT REPLACEMENT CHARACTER`
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}
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bool Fragment::isAttachment() const {
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return string == AttachmentCharacter();
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}
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bool Fragment::operator==(const Fragment &rhs) const {
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return std::tie(string, textAttributes, parentShadowView.tag) ==
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std::tie(rhs.string, rhs.textAttributes, rhs.parentShadowView.tag);
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}
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bool Fragment::operator!=(const Fragment &rhs) const {
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return !(*this == rhs);
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}
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#pragma mark - AttributedString
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void AttributedString::appendFragment(const Fragment &fragment) {
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ensureUnsealed();
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if (fragment.string.empty()) {
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return;
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}
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fragments_.push_back(fragment);
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}
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void AttributedString::prependFragment(const Fragment &fragment) {
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ensureUnsealed();
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if (fragment.string.empty()) {
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return;
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}
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fragments_.insert(fragments_.begin(), fragment);
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}
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void AttributedString::appendAttributedString(
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const AttributedString &attributedString) {
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ensureUnsealed();
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fragments_.insert(
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fragments_.end(),
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attributedString.fragments_.begin(),
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attributedString.fragments_.end());
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}
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void AttributedString::prependAttributedString(
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const AttributedString &attributedString) {
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ensureUnsealed();
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fragments_.insert(
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fragments_.begin(),
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attributedString.fragments_.begin(),
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attributedString.fragments_.end());
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}
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const Fragments &AttributedString::getFragments() const {
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return fragments_;
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}
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std::string AttributedString::getString() const {
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auto string = std::string{};
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for (const auto &fragment : fragments_) {
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string += fragment.string;
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}
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return string;
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}
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bool AttributedString::isEmpty() const {
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return fragments_.empty();
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}
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bool AttributedString::operator==(const AttributedString &rhs) const {
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return fragments_ == rhs.fragments_;
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}
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bool AttributedString::operator!=(const AttributedString &rhs) const {
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return !(*this == rhs);
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}
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#pragma mark - DebugStringConvertible
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#if RN_DEBUG_STRING_CONVERTIBLE
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SharedDebugStringConvertibleList AttributedString::getDebugChildren() const {
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auto list = SharedDebugStringConvertibleList{};
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for (auto &&fragment : fragments_) {
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auto propsList =
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fragment.textAttributes.DebugStringConvertible::getDebugProps();
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list.push_back(std::make_shared<DebugStringConvertibleItem>(
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"Fragment",
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fragment.string,
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SharedDebugStringConvertibleList(),
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propsList));
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}
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return list;
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}
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#endif
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} // namespace react
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} // namespace facebook
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