components/handoff/handoff_manager.mm

   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 #include "components/handoff/handoff_manager.h"
   6
   7 #include "base/logging.h"
   8 #include "base/mac/scoped_nsobject.h"
   9 #include "components/handoff/handoff_utility.h"
  10 #include "net/base/mac/url_conversions.h"
  11
  12 #if defined(OS_IOS)
  13 #include "base/ios/ios_util.h"
  14 #endif
  15
  16 #if defined(OS_MACOSX) && !defined(OS_IOS)
  17 #include "base/mac/mac_util.h"
  18 #include "base/mac/sdk_forward_declarations.h"
  19 #endif
  20
  21 @interface HandoffManager ()
  22
  23 // The active user activity.
  24 @property(nonatomic, retain) NSUserActivity* userActivity;
  25
  26 // Whether the URL of the current tab should be exposed for Handoff.
  27 - (BOOL)shouldUseActiveURL;
  28
  29 // Updates the active NSUserActivity.
  30 - (void)updateUserActivity;
  31
  32 @end
  33
  34 @implementation HandoffManager
  35
  36 @synthesize userActivity = _userActivity;
  37
  38 - (instancetype)init {
  39   self = [super init];
  40   if (self) {
  41     _propertyReleaser_HandoffManager.Init(self, [HandoffManager class]);
  42   }
  43   return self;
  44 }
  45
  46 - (void)updateActiveURL:(const GURL&)url {
  47 #if defined(OS_IOS)
  48   // Handoff is only available on iOS 8+.
  49   DCHECK(base::ios::IsRunningOnIOS8OrLater());
  50 #endif
  51
  52 #if defined(OS_MACOSX) && !defined(OS_IOS)
  53   // Handoff is only available on OSX 10.10+.
  54   DCHECK(base::mac::IsOSYosemiteOrLater());
  55 #endif
  56
  57   _activeURL = url;
  58   [self updateUserActivity];
  59 }
  60
  61 - (BOOL)shouldUseActiveURL {
  62   return _activeURL.SchemeIsHTTPOrHTTPS();
  63 }
  64
  65 - (void)updateUserActivity {
  66   // Clear the user activity.
  67   if (![self shouldUseActiveURL]) {
  68     [self.userActivity invalidate];
  69     self.userActivity = nil;
  70     return;
  71   }
  72
  73   // No change to the user activity.
  74   const GURL userActivityURL(net::GURLWithNSURL(self.userActivity.webpageURL));
  75   if (userActivityURL == _activeURL)
  76     return;
  77
  78   // Invalidate the old user activity and make a new one.
  79   [self.userActivity invalidate];
  80
  81   Class aClass = NSClassFromString(@"NSUserActivity");
  82   NSUserActivity* userActivity = [[aClass performSelector:@selector(alloc)]
  83       performSelector:@selector(initWithActivityType:)
  84            withObject:handoff::kChromeHandoffActivityType];
  85   self.userActivity = base::scoped_nsobject<NSUserActivity>(userActivity);
  86   self.userActivity.webpageURL = net::NSURLWithGURL(_activeURL);
  87   self.userActivity.userInfo = @{ handoff::kOriginKey : handoff::kOriginiOS };
  88   [self.userActivity becomeCurrent];
  89 }
  90
  91 @end