root/chrome/browser/extensions/app_sync_bundle.cc

DEFINITIONS

1. SetupSync
2. Reset
3. CreateSyncChangeToDelete
4. ProcessDeletion
5. CreateSyncChange
6. GetAllSyncData
7. ProcessSyncChange
8. ProcessSyncChangeList
9. HasExtensionId
10. HasPendingExtensionId
11. AddPendingApp
12. IsSyncing
13. SyncChangeIfNeeded
14. GetPendingData
15. GetAppSyncDataListHelper
16. AddApp
17. RemoveApp
18. MarkPendingAppSynced

// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/extensions/app_sync_bundle.h"

#include "base/location.h"
#include "chrome/browser/extensions/extension_sync_service.h"
#include "chrome/common/extensions/sync_helper.h"
#include "extensions/browser/app_sorting.h"
#include "extensions/common/extension.h"
#include "extensions/common/extension_set.h"
#include "sync/api/sync_change_processor.h"
#include "sync/api/sync_data.h"
#include "sync/api/sync_error_factory.h"

namespace extensions {

AppSyncBundle::AppSyncBundle(ExtensionSyncService* extension_sync_service)
    : extension_sync_service_(extension_sync_service) {}

AppSyncBundle::~AppSyncBundle() {}

void AppSyncBundle::SetupSync(
    syncer::SyncChangeProcessor* sync_change_processor,
    syncer::SyncErrorFactory* sync_error_factory,
    const syncer::SyncDataList& initial_sync_data) {
  sync_processor_.reset(sync_change_processor);
  sync_error_factory_.reset(sync_error_factory);

  for (syncer::SyncDataList::const_iterator i = initial_sync_data.begin();
       i != initial_sync_data.end();
       ++i) {
    AppSyncData app_sync_data(*i);
    AddApp(app_sync_data.id());
    extension_sync_service_->ProcessAppSyncData(app_sync_data);
  }
}

void AppSyncBundle::Reset() {
  sync_processor_.reset();
  sync_error_factory_.reset();
  synced_apps_.clear();
  pending_sync_data_.clear();
}

syncer::SyncChange AppSyncBundle::CreateSyncChangeToDelete(
    const Extension* extension)
    const {
  AppSyncData sync_data = extension_sync_service_->GetAppSyncData(*extension);
  return sync_data.GetSyncChange(syncer::SyncChange::ACTION_DELETE);
}

void AppSyncBundle::ProcessDeletion(std::string extension_id,
                                    const syncer::SyncChange& sync_change) {
  RemoveApp(extension_id);
  sync_processor_->ProcessSyncChanges(FROM_HERE,
                                      syncer::SyncChangeList(1, sync_change));
}

syncer::SyncChange AppSyncBundle::CreateSyncChange(
    const syncer::SyncData& sync_data) {
  const syncer::SyncDataLocal sync_data_local(sync_data);
  if (HasExtensionId(sync_data_local.GetTag())) {
    return syncer::SyncChange(FROM_HERE,
                              syncer::SyncChange::ACTION_UPDATE,
                              sync_data);
  } else {
    AddApp(sync_data_local.GetTag());
    return syncer::SyncChange(FROM_HERE,
                              syncer::SyncChange::ACTION_ADD,
                              sync_data);
  }
}

syncer::SyncDataList AppSyncBundle::GetAllSyncData() const {
  std::vector<AppSyncData> app_sync_data =
      extension_sync_service_->GetAppSyncDataList();
  syncer::SyncDataList result(app_sync_data.size());
  for (int i = 0; i < static_cast<int>(app_sync_data.size()); ++i) {
    result[i] = app_sync_data[i].GetSyncData();
  }
  return result;
}

void AppSyncBundle::ProcessSyncChange(AppSyncData app_sync_data) {
  if (app_sync_data.uninstalled())
    RemoveApp(app_sync_data.id());
  else
    AddApp(app_sync_data.id());
  extension_sync_service_->ProcessAppSyncData(app_sync_data);
}

void AppSyncBundle::ProcessSyncChangeList(
    syncer::SyncChangeList sync_change_list) {
  sync_processor_->ProcessSyncChanges(FROM_HERE, sync_change_list);
  extension_sync_service_->extension_prefs().app_sorting()->
      FixNTPOrdinalCollisions();
}

bool AppSyncBundle::HasExtensionId(const std::string& id) const {
  return synced_apps_.find(id) != synced_apps_.end();
}

bool AppSyncBundle::HasPendingExtensionId(const std::string& id) const {
  return pending_sync_data_.find(id) != pending_sync_data_.end();
}

void AppSyncBundle::AddPendingApp(const std::string& id,
                                  const AppSyncData& app_sync_data) {
  pending_sync_data_[id] = app_sync_data;
}

bool AppSyncBundle::IsSyncing() const {
  return sync_processor_ != NULL;
}

void AppSyncBundle::SyncChangeIfNeeded(const Extension& extension) {
  AppSyncData app_sync_data = extension_sync_service_->GetAppSyncData(
      extension);

  syncer::SyncChangeList sync_change_list(1, app_sync_data.GetSyncChange(
      HasExtensionId(extension.id()) ?
      syncer::SyncChange::ACTION_UPDATE : syncer::SyncChange::ACTION_ADD));
  sync_processor_->ProcessSyncChanges(FROM_HERE, sync_change_list);
  MarkPendingAppSynced(extension.id());
}

std::vector<AppSyncData> AppSyncBundle::GetPendingData() const {
  std::vector<AppSyncData> pending_apps;
  for (std::map<std::string, AppSyncData>::const_iterator
           i = pending_sync_data_.begin();
       i != pending_sync_data_.end();
       ++i) {
    pending_apps.push_back(i->second);
  }

  return pending_apps;
}

void AppSyncBundle::GetAppSyncDataListHelper(
    const ExtensionSet& extensions,
    std::vector<AppSyncData>* sync_data_list) const {
  for (ExtensionSet::const_iterator it = extensions.begin();
       it != extensions.end(); ++it) {
    const Extension& extension = *it->get();
    // If we have pending app data for this app, then this
    // version is out of date.  We'll sync back the version we got from
    // sync.
    if (IsSyncing() && sync_helper::IsSyncableApp(&extension) &&
        !HasPendingExtensionId(extension.id())) {
      sync_data_list->push_back(extension_sync_service_->GetAppSyncData(
          extension));
    }
  }
}

void AppSyncBundle::AddApp(const std::string& id) {
  synced_apps_.insert(id);
}

void AppSyncBundle::RemoveApp(const std::string& id) {
  synced_apps_.erase(id);
}


void AppSyncBundle::MarkPendingAppSynced(const std::string& id) {
  pending_sync_data_.erase(id);
  synced_apps_.insert(id);
}


}  // namespace extensions