chrome/browser/ui/tabs/pinned_tab_codec.h

   1 // Copyright (c) 2012 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 CHROME_BROWSER_UI_TABS_PINNED_TAB_CODEC_H_
   6 #define CHROME_BROWSER_UI_TABS_PINNED_TAB_CODEC_H_
   7
   8 #include <vector>
   9
  10 #include "chrome/browser/ui/startup/startup_tab.h"
  11 #include "url/gurl.h"
  12
  13 class Profile;
  14
  15 namespace base {
  16 class Value;
  17 }
  18
  19 namespace user_prefs {
  20 class PrefRegistrySyncable;
  21 }
  22
  23 // PinnedTabCodec is used to read and write the set of pinned tabs to
  24 // preferences. When Chrome exits the sets of pinned tabs are written to prefs.
  25 // On startup if the user has not chosen to restore the last session the set of
  26 // pinned tabs is opened.
  27 //
  28 // The entries are stored in preferences as a list of dictionaries, with each
  29 // dictionary describing the entry.
  30 class PinnedTabCodec {
  31  public:
  32   // Registers the preference used by this class.
  33   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
  34
  35   // Resets the preferences state.
  36   static void WritePinnedTabs(Profile* profile);
  37
  38   // Sets the preferences state from the specified tab list.
  39   static void WritePinnedTabs(Profile* profile, const StartupTabs& tabs);
  40
  41   // Reads and returns the set of pinned tabs to restore from preferences.
  42   static StartupTabs ReadPinnedTabs(Profile* profile);
  43   static StartupTabs ReadPinnedTabs(const base::Value* value);
  44
  45  private:
  46   PinnedTabCodec();
  47   ~PinnedTabCodec();
  48
  49   DISALLOW_COPY_AND_ASSIGN(PinnedTabCodec);
  50 };
  51
  52 #endif  // CHROME_BROWSER_UI_TABS_PINNED_TAB_CODEC_H_