blob: fef801689452abaf83631507227c8db9f92ba9a6 [file] [log] [blame]
// Copyright (c) 2011 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/prerender/prerender_history.h"
#include <memory>
#include <utility>
#include "base/logging.h"
#include "base/strings/string_number_conversions.h"
#include "base/values.h"
namespace prerender {
PrerenderHistory::PrerenderHistory(size_t max_items)
: max_items_(max_items) {
DCHECK(max_items > 0);
}
PrerenderHistory::~PrerenderHistory() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
}
void PrerenderHistory::AddEntry(const Entry& entry) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
while (entries_.size() >= max_items_)
entries_.pop_front();
entries_.push_back(entry);
}
void PrerenderHistory::Clear() {
entries_.clear();
}
std::unique_ptr<base::Value> PrerenderHistory::CopyEntriesAsValue() const {
auto return_list = std::make_unique<base::ListValue>();
// Javascript needs times in terms of milliseconds since Jan 1, 1970.
base::Time epoch_start = base::Time::UnixEpoch();
for (auto it = entries_.rbegin(); it != entries_.rend(); ++it) {
const Entry& entry = *it;
auto entry_dict = std::make_unique<base::DictionaryValue>();
entry_dict->SetString("url", entry.url.spec());
entry_dict->SetString("final_status",
NameFromFinalStatus(entry.final_status));
entry_dict->SetString("origin", NameFromOrigin(entry.origin));
// Use a string to prevent overflow, as Values don't support 64-bit
// integers.
entry_dict->SetString(
"end_time",
base::Int64ToString((entry.end_time - epoch_start).InMilliseconds()));
return_list->Append(std::move(entry_dict));
}
return std::move(return_list);
}
} // namespace prerender