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// Copyright 2018 The Chromium Authors
// 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/keyboard/keyboard_layout_map.h"
namespace blink {
class KeyboardLayoutMapIterationSource final
: public PairSyncIterable<KeyboardLayoutMap>::IterationSource {
public:
explicit KeyboardLayoutMapIterationSource(const KeyboardLayoutMap& map)
: map_(map), iterator_(map_->Map().begin()) {}
bool FetchNextItem(ScriptState* script_state,
String& map_key,
String& map_value,
ExceptionState&) override {
if (iterator_ == map_->Map().end())
return false;
map_key = iterator_->key;
map_value = iterator_->value;
++iterator_;
return true;
}
void Trace(Visitor* visitor) const override {
visitor->Trace(map_);
PairSyncIterable<KeyboardLayoutMap>::IterationSource::Trace(visitor);
}
private:
// Needs to be kept alive while we're iterating over it.
const Member<const KeyboardLayoutMap> map_;
HashMap<String, String>::const_iterator iterator_;
};
KeyboardLayoutMap::KeyboardLayoutMap(const HashMap<String, String>& map)
: layout_map_(map) {}
PairSyncIterable<KeyboardLayoutMap>::IterationSource*
KeyboardLayoutMap::CreateIterationSource(ScriptState*, ExceptionState&) {
return MakeGarbageCollected<KeyboardLayoutMapIterationSource>(*this);
}
bool KeyboardLayoutMap::GetMapEntry(ScriptState*,
const String& key,
String& value,
ExceptionState&) {
auto it = layout_map_.find(key);
if (it == layout_map_.end())
return false;
value = it->value;
return true;
}
} // namespace blink
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