1 // Copyright (c) 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 "chrome/browser/prefs/browser_ui_prefs_migrator.h" 6 7 #include <set> 8 9 #include "base/memory/scoped_ptr.h" 10 #include "base/strings/string_util.h" 11 #include "base/values.h" 12 #include "chrome/common/pref_names.h" 13 BrowserUIPrefsMigrator(WriteablePrefStore * pref_store)14BrowserUIPrefsMigrator::BrowserUIPrefsMigrator(WriteablePrefStore* pref_store) 15 : pref_store_(pref_store) { 16 } 17 ~BrowserUIPrefsMigrator()18BrowserUIPrefsMigrator::~BrowserUIPrefsMigrator() { 19 } 20 OnInitializationCompleted(bool succeeded)21void BrowserUIPrefsMigrator::OnInitializationCompleted( 22 bool succeeded) { 23 pref_store_->RemoveObserver(this); 24 scoped_ptr<BrowserUIPrefsMigrator> self_deleter(this); 25 if (!succeeded) 26 return; 27 28 base::Value* browser_value = NULL; 29 if (!pref_store_->GetMutableValue("browser", &browser_value)) 30 return; 31 32 base::DictionaryValue* browser_dict = NULL; 33 if (!browser_value->GetAsDictionary(&browser_dict)) 34 return; 35 36 // Don't bother scanning "browser" if the migration already occurred. 37 if (browser_dict->HasKey("app_window_placement")) 38 return; 39 40 // Get a set of keys in the dictionary. This must be done separately from the 41 // migration because the migration modifies the dictionary being iterated. 42 std::set<std::string> keys_to_check; 43 for (base::DictionaryValue::Iterator it(*browser_dict); !it.IsAtEnd(); 44 it.Advance()) { 45 keys_to_check.insert(it.key()); 46 } 47 48 scoped_ptr<base::DictionaryValue> app_window_placement; 49 // Apps used to have their window placement preferences registered as 50 // "browser.window_placement_$APPNAME". 51 const std::string search_for = 52 std::string(prefs::kBrowserWindowPlacement) + "_"; 53 for (std::set<std::string>::const_iterator it = keys_to_check.begin(); 54 it != keys_to_check.end(); 55 ++it) { 56 std::string full_key("browser." + *it); 57 if (StartsWithASCII(full_key, search_for, true /* case_sensitive */)) { 58 if (full_key == prefs::kBrowserWindowPlacementPopup) 59 continue; 60 scoped_ptr<base::Value> single_app_placement_dict; 61 bool found = browser_dict->Remove(*it, &single_app_placement_dict); 62 DCHECK(found); 63 std::string new_key(full_key.substr(search_for.length())); 64 if (!app_window_placement) 65 app_window_placement.reset(new base::DictionaryValue); 66 app_window_placement->Set(new_key, single_app_placement_dict.release()); 67 } 68 } 69 if (app_window_placement) { 70 pref_store_->SetValue(prefs::kAppWindowPlacement, 71 app_window_placement.release()); 72 } 73 } 74