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// Copyright 2020 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/modules/font_access/font_table_map.h"
#include "third_party/blink/renderer/platform/bindings/script_state.h"
namespace blink {
void FontTableMap::Trace(Visitor* visitor) const {
visitor->Trace(table_map_);
ScriptWrappable::Trace(visitor);
}
class FontTableMapIterationSource final
: public PairIterable<String, Member<Blob>>::IterationSource {
public:
explicit FontTableMapIterationSource(const FontTableMap::MapType& map) {
for (const auto& table_name : map.Keys()) {
table_names_.push_back(table_name);
table_data_.push_back(map.at(table_name));
}
}
bool Next(ScriptState* script_state,
String& map_key,
Member<Blob>& map_value,
ExceptionState&) override {
if (current_index_ == table_names_.size())
return false;
map_key = table_names_[current_index_];
map_value = table_data_[current_index_];
++current_index_;
return true;
}
void Trace(Visitor* visitor) const override {
visitor->Trace(table_data_);
PairIterable<String, Member<Blob>>::IterationSource::Trace(visitor);
}
private:
Vector<String> table_names_;
HeapVector<Member<Blob>> table_data_;
unsigned current_index_;
};
PairIterable<String, Member<Blob>>::IterationSource*
FontTableMap::StartIteration(ScriptState*, ExceptionState&) {
return MakeGarbageCollected<FontTableMapIterationSource>(table_map_);
}
bool FontTableMap::GetMapEntry(ScriptState*,
const String& key,
Member<Blob>& value,
ExceptionState&) {
if (table_map_.Contains(key)) {
value = table_map_.at(key);
return true;
}
return false;
}
} // namespace blink
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