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      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 #include "chrome/browser/extensions/app_sync_bundle.h"
      6 
      7 #include "base/location.h"
      8 #include "chrome/browser/extensions/extension_service.h"
      9 #include "chrome/browser/extensions/extension_sorting.h"
     10 #include "chrome/common/extensions/extension.h"
     11 #include "chrome/common/extensions/extension_set.h"
     12 #include "chrome/common/extensions/sync_helper.h"
     13 #include "sync/api/sync_change_processor.h"
     14 #include "sync/api/sync_error_factory.h"
     15 
     16 namespace extensions {
     17 
     18 AppSyncBundle::AppSyncBundle(ExtensionService* extension_service)
     19     : extension_service_(extension_service) {}
     20 
     21 AppSyncBundle::~AppSyncBundle() {}
     22 
     23 void AppSyncBundle::SetupSync(
     24     syncer::SyncChangeProcessor* sync_change_processor,
     25     syncer::SyncErrorFactory* sync_error_factory,
     26     const syncer::SyncDataList& initial_sync_data) {
     27   sync_processor_.reset(sync_change_processor);
     28   sync_error_factory_.reset(sync_error_factory);
     29 
     30   for (syncer::SyncDataList::const_iterator i = initial_sync_data.begin();
     31        i != initial_sync_data.end();
     32        ++i) {
     33     AppSyncData app_sync_data(*i);
     34     AddApp(app_sync_data.id());
     35     extension_service_->ProcessAppSyncData(app_sync_data);
     36   }
     37 }
     38 
     39 void AppSyncBundle::Reset() {
     40   sync_processor_.reset();
     41   sync_error_factory_.reset();
     42   synced_apps_.clear();
     43   pending_sync_data_.clear();
     44 }
     45 
     46 syncer::SyncChange AppSyncBundle::CreateSyncChangeToDelete(
     47     const Extension* extension)
     48     const {
     49   AppSyncData sync_data = extension_service_->GetAppSyncData(*extension);
     50   return sync_data.GetSyncChange(syncer::SyncChange::ACTION_DELETE);
     51 }
     52 
     53 void AppSyncBundle::ProcessDeletion(std::string extension_id,
     54                                     const syncer::SyncChange& sync_change) {
     55   RemoveApp(extension_id);
     56   sync_processor_->ProcessSyncChanges(FROM_HERE,
     57                                       syncer::SyncChangeList(1, sync_change));
     58 }
     59 
     60 syncer::SyncChange AppSyncBundle::CreateSyncChange(
     61     const syncer::SyncData& sync_data) {
     62   if (HasExtensionId(sync_data.GetTag())) {
     63     return syncer::SyncChange(FROM_HERE,
     64                               syncer::SyncChange::ACTION_UPDATE,
     65                               sync_data);
     66   } else {
     67     AddApp(sync_data.GetTag());
     68     return syncer::SyncChange(FROM_HERE,
     69                               syncer::SyncChange::ACTION_ADD,
     70                               sync_data);
     71   }
     72 }
     73 
     74 syncer::SyncDataList AppSyncBundle::GetAllSyncData() const {
     75   std::vector<AppSyncData> app_sync_data =
     76       extension_service_->GetAppSyncDataList();
     77   syncer::SyncDataList result(app_sync_data.size());
     78   for (int i = 0; i < static_cast<int>(app_sync_data.size()); ++i) {
     79     result[i] = app_sync_data[i].GetSyncData();
     80   }
     81   return result;
     82 }
     83 
     84 void AppSyncBundle::SyncChangeIfNeeded(const Extension& extension) {
     85   AppSyncData app_sync_data = extension_service_->GetAppSyncData(extension);
     86 
     87   syncer::SyncChangeList sync_change_list(1, app_sync_data.GetSyncChange(
     88       HasExtensionId(extension.id()) ?
     89       syncer::SyncChange::ACTION_UPDATE : syncer::SyncChange::ACTION_ADD));
     90   sync_processor_->ProcessSyncChanges(FROM_HERE, sync_change_list);
     91   MarkPendingAppSynced(extension.id());
     92 }
     93 
     94 void AppSyncBundle::ProcessSyncChange(AppSyncData app_sync_data) {
     95   if (app_sync_data.uninstalled())
     96     RemoveApp(app_sync_data.id());
     97   else
     98     AddApp(app_sync_data.id());
     99   extension_service_->ProcessAppSyncData(app_sync_data);
    100 }
    101 
    102 void AppSyncBundle::ProcessSyncChangeList(
    103     syncer::SyncChangeList sync_change_list) {
    104   sync_processor_->ProcessSyncChanges(FROM_HERE, sync_change_list);
    105   extension_service_->extension_prefs()->extension_sorting()->
    106       FixNTPOrdinalCollisions();
    107 }
    108 
    109 bool AppSyncBundle::HasExtensionId(const std::string& id) const {
    110   return synced_apps_.find(id) != synced_apps_.end();
    111 }
    112 
    113 bool AppSyncBundle::HasPendingExtensionId(const std::string& id) const {
    114   return pending_sync_data_.find(id) != pending_sync_data_.end();
    115 }
    116 
    117 void AppSyncBundle::AddPendingApp(const std::string& id,
    118                                   const AppSyncData& app_sync_data) {
    119   pending_sync_data_[id] = app_sync_data;
    120 }
    121 
    122 bool AppSyncBundle::IsSyncing() const {
    123   return sync_processor_ != NULL;
    124 }
    125 
    126 std::vector<AppSyncData> AppSyncBundle::GetPendingData() const {
    127   std::vector<AppSyncData> pending_apps;
    128   for (std::map<std::string, AppSyncData>::const_iterator
    129            i = pending_sync_data_.begin();
    130        i != pending_sync_data_.end();
    131        ++i) {
    132     pending_apps.push_back(i->second);
    133   }
    134 
    135   return pending_apps;
    136 }
    137 
    138 void AppSyncBundle::GetAppSyncDataListHelper(
    139     const ExtensionSet& extensions,
    140     std::vector<AppSyncData>* sync_data_list) const {
    141   for (ExtensionSet::const_iterator it = extensions.begin();
    142        it != extensions.end(); ++it) {
    143     const Extension& extension = *it->get();
    144     // If we have pending app data for this app, then this
    145     // version is out of date.  We'll sync back the version we got from
    146     // sync.
    147     if (IsSyncing() && sync_helper::IsSyncableApp(&extension) &&
    148         !HasPendingExtensionId(extension.id())) {
    149       sync_data_list->push_back(extension_service_->GetAppSyncData(extension));
    150     }
    151   }
    152 }
    153 
    154 void AppSyncBundle::AddApp(const std::string& id) {
    155   synced_apps_.insert(id);
    156 }
    157 
    158 void AppSyncBundle::RemoveApp(const std::string& id) {
    159   synced_apps_.erase(id);
    160 }
    161 
    162 
    163 void AppSyncBundle::MarkPendingAppSynced(const std::string& id) {
    164   pending_sync_data_.erase(id);
    165   synced_apps_.insert(id);
    166 }
    167 
    168 
    169 }  // namespace extensions
    170