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 }  // namespace test
  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   bool GetRecentURLFromClipboard(GURL* url) const override;
  30
  31   base::TimeDelta GetClipboardContentAge() const override;
  32
  33   void SuppressClipboardContent() override;
  34
  35  protected:
  36   // Protected for testing.
  37   ClipboardRecentContentIOS();
  38   ~ClipboardRecentContentIOS() override;
  39   // |uptime| is how long ago the device has started.
  40   ClipboardRecentContentIOS(base::TimeDelta uptime);
  41
  42  private:
  43   friend struct DefaultSingletonTraits<ClipboardRecentContentIOS>;
  44   friend class test::ClipboardRecentContentIOSTestHelper;
  45   // Initializes the object. |uptime| is how long ago the device has started.
  46   void Init(base::TimeDelta uptime);
  47   // Loads information from the user defaults about the latest pasteboard entry.
  48   void LoadFromUserDefaults();
  49   // Saves information to the user defaults about the latest pasteboard entry.
  50   void SaveToUserDefaults();
  51   // Returns the URL contained in the clipboard (if any).
  52   GURL URLFromPasteboard();
  53
  54   // The pasteboard's change count. Increases everytime the pasteboard changes.
  55   NSInteger lastPasteboardChangeCount_;
  56   // Estimation of the date when the pasteboard changed.
  57   base::scoped_nsobject<NSDate> lastPasteboardChangeDate_;
  58   // Cache of the GURL contained in the pasteboard (if any).
  59   GURL urlFromPasteboardCache_;
  60   // A count identifying the suppressed pasteboard entry. Contains
  61   // |NSIntegerMax| if there's no relevant entry to suppress.
  62   NSInteger suppressedPasteboardEntryCount_;
  63   // Bridge to receive notification when the pasteboard changes.
  64   base::scoped_nsobject<PasteboardNotificationListenerBridge>
  65       notificationBridge_;
  66
  67   DISALLOW_COPY_AND_ASSIGN(ClipboardRecentContentIOS);
  68 };
  69
  70 #endif  // COMPONENTS_OPEN_FROM_CLIPBOARD_CLIPBOARD_RECENT_CONTENT_IOS_H_