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 template <typename T>
  16 struct DefaultSingletonTraits;
  17
  18 // IOS implementation of ClipboardRecentContent
  19 class ClipboardRecentContentIOS : public ClipboardRecentContent {
  20  public:
  21   static ClipboardRecentContentIOS* GetInstance();
  22   // Notifies that the content of the pasteboard may have changed.
  23   void PasteboardChanged();
  24
  25   // ClipboardRecentContent implementation.
  26   bool GetRecentURLFromClipboard(GURL* url) const override;
  27
  28  private:
  29   friend struct DefaultSingletonTraits<ClipboardRecentContentIOS>;
  30
  31   ClipboardRecentContentIOS();
  32   ~ClipboardRecentContentIOS() override;
  33   // Loads information from the user defaults about the latest pasteboard entry.
  34   void LoadFromUserDefaults();
  35   // Saves information to the user defaults about the latest pasteboard entry.
  36   void SaveToUserDefaults();
  37   // Returns the URL contained in the clipboard (if any).
  38   GURL URLFromPasteboard();
  39   // Returns whether the device has restarted since the last time a pasteboard
  40   // change was detected.
  41   bool DeviceRestartedSincePasteboardChanged();
  42
  43   // The pasteboard's change count. Increases everytime the pasteboard changes.
  44   NSInteger lastPasteboardChangeCount_;
  45   // Estimation of the date when the pasteboard changed.
  46   base::scoped_nsobject<NSDate> lastPasteboardChangeDate_;
  47   // Cache of the GURL contained in the pasteboard (if any).
  48   GURL urlFromPasteboardCache_;
  49   // Bridge to receive notification when the pasteboard changes.
  50   base::scoped_nsobject<PasteboardNotificationListenerBridge>
  51       notificationBridge_;
  52
  53   DISALLOW_COPY_AND_ASSIGN(ClipboardRecentContentIOS);
  54 };
  55
  56 #endif  // COMPONENTS_OPEN_FROM_CLIPBOARD_CLIPBOARD_RECENT_CONTENT_IOS_H_