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 activity type that Chrome uses to pass a Handoff to itself.
  13 extern NSString* const kChromeHandoffActivityType;
  14
  15 // The value of this key in the userInfo dictionary of an NSUserActivity
  16 // indicates the origin. The value should not be used for any privacy or
  17 // security sensitive operations, since any application can set the key/value
  18 // pair.
  19 extern NSString* const kOriginKey;
  20
  21 // This value indicates that an NSUserActivity originated from Chrome on iOS.
  22 extern NSString* const kOriginiOS;
  23
  24 // This value indicates that an NSUserActivity originated from Chrome on Mac.
  25 extern NSString* const kOriginMac;
  26
  27 // Used for UMA metrics.
  28 enum Origin {
  29   ORIGIN_UNKNOWN = 0,
  30   ORIGIN_IOS = 1,
  31   ORIGIN_MAC = 2,
  32   ORIGIN_COUNT
  33 };
  34
  35 // Returns ORIGIN_UNKNOWN if |string| is nil or unrecognized.
  36 Origin OriginFromString(NSString* string);
  37
  38 // Returns nil if |origin| is not ORIGIN_IOS or ORIGIN_MAC.
  39 NSString* StringFromOrigin(Origin origin);
  40
  41 }  // namespace handoff
  42
  43 #endif  // COMPONENTS_HANDOFF_HANDOFF_UTILITY_H_