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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/base/metadata/metadata_types.h"
#include <string_view>
#include <utility>
#include "base/check_op.h"
#include "base/notreached.h"
#include "base/strings/strcat.h"
#include "base/strings/string_util.h"
#include "ui/base/metadata/base_type_conversion.h"
namespace ui {
namespace metadata {
PropertyFlags operator|(PropertyFlags op1, PropertyFlags op2) {
return static_cast<PropertyFlags>(static_cast<uint32_t>(op1) |
static_cast<uint32_t>(op2));
}
PropertyFlags operator&(PropertyFlags op1, PropertyFlags op2) {
return static_cast<PropertyFlags>(static_cast<uint32_t>(op1) &
static_cast<uint32_t>(op2));
}
PropertyFlags operator^(PropertyFlags op1, PropertyFlags op2) {
return static_cast<PropertyFlags>(static_cast<uint32_t>(op1) ^
static_cast<uint32_t>(op2));
}
bool operator!(PropertyFlags op) {
return !static_cast<bool>(op);
}
MetaDataProvider::MetaDataProvider() = default;
MetaDataProvider::~MetaDataProvider() = default;
class ClassMetaData* MetaDataProvider::GetClassMetaData() {
return const_cast<ClassMetaData*>(std::as_const(*this).GetClassMetaData());
}
base::CallbackListSubscription MetaDataProvider::AddPropertyChangedCallback(
PropertyKey property,
PropertyChangedCallback callback) {
auto entry = property_changed_vectors_.find(property);
if (entry == property_changed_vectors_.end()) {
entry = property_changed_vectors_
.emplace(property, std::make_unique<PropertyChangedCallbacks>())
.first;
}
PropertyChangedCallbacks* property_changed_callbacks = entry->second.get();
return property_changed_callbacks->Add(std::move(callback));
}
void MetaDataProvider::TriggerChangedCallback(PropertyKey property) {
auto entry = property_changed_vectors_.find(property);
if (entry == property_changed_vectors_.end()) {
return;
}
PropertyChangedCallbacks* property_changed_callbacks = entry->second.get();
property_changed_callbacks->Notify();
}
ClassMetaData::ClassMetaData() = default;
static std::string_view TrimFilename(std::string_view file) {
size_t first = file.find_first_not_of("./\\");
if (first == std::string_view::npos) {
first = 0;
}
return file.substr(first, file.size() - first);
}
ClassMetaData::ClassMetaData(std::string_view file, int line)
: file_(TrimFilename(file)), line_(line) {}
ClassMetaData::~ClassMetaData() = default;
const std::string& ClassMetaData::GetUniqueName() const {
if (unique_name_.empty()) {
unique_name_ = base::StrCat({file_, ":", type_name_});
}
return unique_name_;
}
void ClassMetaData::AddMemberData(
std::unique_ptr<MemberMetaDataBase> member_data) {
members_.push_back(member_data.release());
}
MemberMetaDataBase* ClassMetaData::FindMemberData(
const std::string& member_name) {
for (MemberMetaDataBase* member_data : members_) {
if (member_data->member_name() == member_name) {
return member_data;
}
}
if (parent_class_meta_data_ != nullptr)
return parent_class_meta_data_->FindMemberData(member_name);
return nullptr;
}
/** Member Iterator */
ClassMetaData::ClassMemberIterator::ClassMemberIterator(
const ClassMetaData::ClassMemberIterator& other) {
current_collection_ = other.current_collection_;
current_vector_index_ = other.current_vector_index_;
}
ClassMetaData::ClassMemberIterator::~ClassMemberIterator() = default;
// If starting_container's members vector is empty, set current_collection_
// to its parent until parent class has members. Base parent class View
// will always have members, even if all other parent classes do not.
ClassMetaData::ClassMemberIterator::ClassMemberIterator(
ClassMetaData* starting_container) {
current_collection_ = starting_container;
if (!current_collection_) {
current_vector_index_ = SIZE_MAX;
} else if (current_collection_->members().size() == 0) {
do {
current_collection_ = current_collection_->parent_class_meta_data();
} while (current_collection_ && current_collection_->members().empty());
current_vector_index_ = (current_collection_ ? 0 : SIZE_MAX);
} else {
current_vector_index_ = 0;
}
}
bool ClassMetaData::ClassMemberIterator::operator==(
const ClassMemberIterator& rhs) const {
return current_vector_index_ == rhs.current_vector_index_ &&
current_collection_ == rhs.current_collection_;
}
ClassMetaData::ClassMemberIterator&
ClassMetaData::ClassMemberIterator::operator++() {
IncrementHelper();
return *this;
}
ClassMetaData::ClassMemberIterator
ClassMetaData::ClassMemberIterator::operator++(int) {
ClassMetaData::ClassMemberIterator tmp(*this);
IncrementHelper();
return tmp;
}
bool ClassMetaData::ClassMemberIterator::IsLastMember() const {
return current_vector_index_ == current_collection_->members().size() - 1;
}
std::string ClassMetaData::ClassMemberIterator::GetCurrentCollectionName()
const {
return std::string(current_collection_->type_name());
}
void ClassMetaData::ClassMemberIterator::IncrementHelper() {
DCHECK_LT(current_vector_index_, SIZE_MAX);
++current_vector_index_;
if (current_vector_index_ >= current_collection_->members().size()) {
do {
current_collection_ = current_collection_->parent_class_meta_data();
current_vector_index_ = (current_collection_ ? 0 : SIZE_MAX);
} while (current_collection_ && current_collection_->members().empty());
}
}
ClassMetaData::ClassMemberIterator ClassMetaData::begin() {
return ClassMemberIterator(this);
}
ClassMetaData::ClassMemberIterator ClassMetaData::end() {
return ClassMemberIterator(nullptr);
}
void ClassMetaData::SetTypeName(std::string_view type_name) {
type_name_ = type_name;
}
void MemberMetaDataBase::SetValueAsString(void* obj,
const std::u16string& new_value) {
NOTREACHED();
}
std::string_view MemberMetaDataBase::GetMemberNamePrefix() const {
return {};
}
MemberMetaDataBase::ValueStrings MemberMetaDataBase::GetValidValues() const {
return ValueStrings();
}
} // namespace metadata
} // namespace ui
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