// Copyright 2014 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 "content/renderer/notification_permission_dispatcher.h"

#include "base/bind.h"
#include "content/public/common/service_registry.h"
#include "content/public/renderer/render_frame.h"
#include "third_party/WebKit/public/platform/WebString.h"
#include "third_party/WebKit/public/web/WebNotificationPermissionCallback.h"
#include "third_party/WebKit/public/web/WebSecurityOrigin.h"
#include "third_party/WebKit/public/web/WebUserGestureIndicator.h"

namespace content {

NotificationPermissionDispatcher::NotificationPermissionDispatcher(
    RenderFrame* render_frame) : RenderFrameObserver(render_frame) {
}

NotificationPermissionDispatcher::~NotificationPermissionDispatcher() {
}

void NotificationPermissionDispatcher::RequestPermission(
    const blink::WebSecurityOrigin& origin,
    blink::WebNotificationPermissionCallback* callback) {
  if (!permission_service_.get()) {
    render_frame()->GetServiceRegistry()->ConnectToRemoteService(
        &permission_service_);
  }

  int request_id = pending_requests_.Add(callback);

  permission_service_->RequestPermission(
      PERMISSION_NAME_NOTIFICATIONS,
      origin.toString().utf8(),
      blink::WebUserGestureIndicator::isProcessingUserGesture(),
      base::Bind(&NotificationPermissionDispatcher::OnPermissionRequestComplete,
                 base::Unretained(this),
                 request_id));
}

void NotificationPermissionDispatcher::OnPermissionRequestComplete(
    int request_id, PermissionStatus status) {
  blink::WebNotificationPermissionCallback* callback =
      pending_requests_.Lookup(request_id);
  DCHECK(callback);

  // TODO(mlamouri): we should have a switch to handle all cases but for now,
  // the Notification code is assuming allowed/denied.
  // See http://crbug.com/434547 and http://crbug.com/436414
  blink::WebNotificationPermission permission =
      status == PERMISSION_STATUS_GRANTED
          ? blink::WebNotificationPermissionAllowed
          : blink::WebNotificationPermissionDenied;

  callback->permissionRequestComplete(permission);
  pending_requests_.Remove(request_id);
}

}  // namespace content