third_party/WebKit/Source/modules/bluetooth/BluetoothSupplement.cpp

// Copyright 2015 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 "modules/bluetooth/BluetoothSupplement.h"

#include "core/dom/Document.h"

namespace blink {

const char* BluetoothSupplement::supplementName() {
  return "BluetoothSupplement";
}

BluetoothSupplement::BluetoothSupplement(WebBluetooth* bluetooth)
    : m_bluetooth(bluetooth) {}

void BluetoothSupplement::provideTo(LocalFrame& frame,
                                    WebBluetooth* bluetooth) {
  BluetoothSupplement* bluetoothSupplement = new BluetoothSupplement(bluetooth);
  Supplement<LocalFrame>::provideTo(frame, supplementName(),
                                    bluetoothSupplement);
};

WebBluetooth* BluetoothSupplement::from(LocalFrame* frame) {
  BluetoothSupplement* supplement = static_cast<BluetoothSupplement*>(
      Supplement<LocalFrame>::from(frame, supplementName()));

  ASSERT(supplement);
  ASSERT(supplement->m_bluetooth);

  return supplement->m_bluetooth;
}

WebBluetooth* BluetoothSupplement::fromScriptState(ScriptState* scriptState) {
  return fromExecutionContext(scriptState->getExecutionContext());
}

WebBluetooth* BluetoothSupplement::fromExecutionContext(
    ExecutionContext* executionContext) {
  if (!executionContext->isDocument()) {
    return nullptr;
  }
  return BluetoothSupplement::from(
      static_cast<Document*>(executionContext)->frame());
}

DEFINE_TRACE(BluetoothSupplement) {
  Supplement<LocalFrame>::trace(visitor);
}

}  // namespace blink