components/open_from_clipboard/clipboard_recent_content_ios.h

   1 // Copyright 2015 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_OPEN_FROM_CLIPBOARD_CLIPBOARD_RECENT_CONTENT_IOS_H_
   6 #define COMPONENTS_OPEN_FROM_CLIPBOARD_CLIPBOARD_RECENT_CONTENT_IOS_H_
   7
   8 #include "base/mac/scoped_nsobject.h"
   9 #include "components/open_from_clipboard/clipboard_recent_content.h"
  10 #include "url/gurl.h"
  11
  12 @class NSDate;
  13 @class PasteboardNotificationListenerBridge;
  14
  15 namespace test {
  16 class ClipboardRecentContentIOSTestHelper;
  17 }
  18
  19 template <typename T>
  20 struct DefaultSingletonTraits;
  21
  22 // IOS implementation of ClipboardRecentContent
  23 class ClipboardRecentContentIOS : public ClipboardRecentContent {
  24  public:
  25   static ClipboardRecentContentIOS* GetInstance();
  26   // Notifies that the content of the pasteboard may have changed.
  27   void PasteboardChanged();
  28
  29   // ClipboardRecentContent implementation.
  30   bool GetRecentURLFromClipboard(GURL* url) const override;
  31
  32  protected:
  33   // Protected for testing.
  34   ClipboardRecentContentIOS();
  35   ~ClipboardRecentContentIOS() override;
  36
  37  private:
  38   friend struct DefaultSingletonTraits<ClipboardRecentContentIOS>;
  39   friend class test::ClipboardRecentContentIOSTestHelper;
  40
  41   // Loads information from the user defaults about the latest pasteboard entry.
  42   void LoadFromUserDefaults();
  43   // Saves information to the user defaults about the latest pasteboard entry.
  44   void SaveToUserDefaults();
  45   // Returns the URL contained in the clipboard (if any).
  46   GURL URLFromPasteboard();
  47   // Returns whether the device has restarted since the last time a pasteboard
  48   // change was detected.
  49   bool DeviceRestartedSincePasteboardChanged();
  50
  51   // The pasteboard's change count. Increases everytime the pasteboard changes.
  52   NSInteger lastPasteboardChangeCount_;
  53   // Estimation of the date when the pasteboard changed.
  54   base::scoped_nsobject<NSDate> lastPasteboardChangeDate_;
  55   // Cache of the GURL contained in the pasteboard (if any).
  56   GURL urlFromPasteboardCache_;
  57   // Bridge to receive notification when the pasteboard changes.
  58   base::scoped_nsobject<PasteboardNotificationListenerBridge>
  59       notificationBridge_;
  60
  61   DISALLOW_COPY_AND_ASSIGN(ClipboardRecentContentIOS);
  62 };
  63
  64 #endif  // COMPONENTS_OPEN_FROM_CLIPBOARD_CLIPBOARD_RECENT_CONTENT_IOS_H_