components/handoff/handoff_utility.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef COMPONENTS_HANDOFF_HANDOFF_UTILITY_H_
   6 #define COMPONENTS_HANDOFF_HANDOFF_UTILITY_H_
   7
   8 #import <Foundation/Foundation.h>
   9
  10 namespace handoff {
  11
  12 // The value of this key in the userInfo dictionary of an NSUserActivity
  13 // indicates the origin. The value should not be used for any privacy or
  14 // security sensitive operations, since any application can set the key/value
  15 // pair.
  16 extern NSString* const kOriginKey;
  17
  18 // This value indicates that an NSUserActivity originated from Chrome on iOS.
  19 extern NSString* const kOriginiOS;
  20
  21 // This value indicates that an NSUserActivity originated from Chrome on Mac.
  22 extern NSString* const kOriginMac;
  23
  24 // Used for UMA metrics.
  25 enum Origin {
  26   ORIGIN_UNKNOWN = 0,
  27   ORIGIN_IOS = 1,
  28   ORIGIN_MAC = 2,
  29   ORIGIN_COUNT
  30 };
  31
  32 // Returns ORIGIN_UNKNOWN if |string| is nil or unrecognized.
  33 Origin OriginFromString(NSString* string);
  34
  35 }  // namespace handoff
  36
  37 #endif  // COMPONENTS_HANDOFF_HANDOFF_UTILITY_H_