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// Copyright 2015 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 "components/ntp_snippets/ntp_snippets_service.h"
#include "base/json/json_string_value_serializer.h"
#include "base/values.h"
namespace ntp_snippets {
NTPSnippetsService::NTPSnippetsService(
const std::string& application_language_code)
: loaded_(false), application_language_code_(application_language_code) {}
NTPSnippetsService::~NTPSnippetsService() {}
void NTPSnippetsService::Shutdown() {
FOR_EACH_OBSERVER(NTPSnippetsServiceObserver, observers_,
NTPSnippetsServiceShutdown(this));
loaded_ = false;
}
void NTPSnippetsService::AddObserver(NTPSnippetsServiceObserver* observer) {
observers_.AddObserver(observer);
if (loaded_)
observer->NTPSnippetsServiceLoaded(this);
}
void NTPSnippetsService::RemoveObserver(NTPSnippetsServiceObserver* observer) {
observers_.RemoveObserver(observer);
}
bool NTPSnippetsService::LoadFromJSONString(const std::string& str) {
JSONStringValueDeserializer deserializer(str);
int error_code;
std::string error_message;
scoped_ptr<base::Value> deserialized =
deserializer.Deserialize(&error_code, &error_message);
if (!deserialized)
return false;
const base::DictionaryValue* top_dict = NULL;
if (!deserialized->GetAsDictionary(&top_dict))
return false;
const base::ListValue* list = NULL;
if (!top_dict->GetList("recos", &list))
return false;
for (base::Value* const value : *list) {
const base::DictionaryValue* dict = NULL;
if (!value->GetAsDictionary(&dict))
return false;
const base::DictionaryValue* content = NULL;
if (!dict->GetDictionary("contentInfo", &content))
return false;
std::unique_ptr<NTPSnippet> snippet =
NTPSnippet::NTPSnippetFromDictionary(*content);
if (!snippet)
return false;
snippets_.push_back(std::move(snippet));
}
loaded_ = true;
FOR_EACH_OBSERVER(NTPSnippetsServiceObserver, observers_,
NTPSnippetsServiceLoaded(this));
return true;
}
} // namespace ntp_snippets
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