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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/xr/xr_input_source_array.h"
namespace blink {
XRInputSource* XRInputSourceArray::AnonymousIndexedGetter(
unsigned index) const {
if (index >= input_sources_.size())
return nullptr;
auto it = input_sources_.Values().begin();
// HeapHashMap's iterators don't expose a generic + operator. We're ensuring
// that this won't be past the end with the size check above.
for (unsigned i = 0; i < index; i++) {
++it;
}
return *(it.Get());
}
XRInputSource* XRInputSourceArray::operator[](unsigned index) const {
DCHECK(index < length());
return AnonymousIndexedGetter(index);
}
XRInputSource* XRInputSourceArray::GetWithSourceId(uint32_t source_id) {
auto it = input_sources_.find(source_id);
if (it != input_sources_.end())
return it->value.Get();
return nullptr;
}
void XRInputSourceArray::RemoveWithSourceId(uint32_t source_id) {
auto it = input_sources_.find(source_id);
if (it != input_sources_.end())
input_sources_.erase(it);
}
void XRInputSourceArray::SetWithSourceId(uint32_t source_id,
XRInputSource* input_source) {
input_sources_.Set(source_id, input_source);
}
void XRInputSourceArray::Trace(Visitor* visitor) const {
visitor->Trace(input_sources_);
ScriptWrappable::Trace(visitor);
}
} // namespace blink
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