// Copyright 2016 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 "public/web/WebMediaDeviceChangeObserver.h"

#include "core/dom/Document.h"
#include "modules/mediastream/MediaDevices.h"
#include "public/platform/WebSecurityOrigin.h"

namespace blink {

WebMediaDeviceChangeObserver::WebMediaDeviceChangeObserver()
    : m_private(nullptr) {}

WebMediaDeviceChangeObserver::WebMediaDeviceChangeObserver(bool unused)
    : m_private(MediaDevices::create(Document::create())) {}

WebMediaDeviceChangeObserver::WebMediaDeviceChangeObserver(
    const WebMediaDeviceChangeObserver& other) {
  assign(other);
}

WebMediaDeviceChangeObserver& WebMediaDeviceChangeObserver::operator=(
    const WebMediaDeviceChangeObserver& other) {
  assign(other);
  return *this;
}

WebMediaDeviceChangeObserver::WebMediaDeviceChangeObserver(
    MediaDevices* observer)
    : m_private(observer) {}

WebMediaDeviceChangeObserver::~WebMediaDeviceChangeObserver() {
  reset();
}

bool WebMediaDeviceChangeObserver::isNull() const {
  return m_private.isNull();
}

void WebMediaDeviceChangeObserver::didChangeMediaDevices() {
  if (m_private.isNull())
    return;

  m_private->didChangeMediaDevices();
}

WebSecurityOrigin WebMediaDeviceChangeObserver::getSecurityOrigin() const {
  if (m_private.isNull())
    return WebSecurityOrigin();

  return WebSecurityOrigin(
      m_private->getExecutionContext()->getSecurityOrigin());
}

void WebMediaDeviceChangeObserver::assign(
    const WebMediaDeviceChangeObserver& other) {
  m_private = other.m_private;
}

void WebMediaDeviceChangeObserver::reset() {
  m_private.reset();
}

}  // namespace blink