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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/password_manager/core/browser/log_manager.h"
#include "base/macros.h"
#include "base/memory/ptr_util.h"
#include "components/password_manager/core/browser/log_router.h"
namespace password_manager {
namespace {
class LogManagerImpl : public LogManager {
public:
LogManagerImpl(LogRouter* log_router, base::Closure notification_callback);
~LogManagerImpl() override;
// LogManager
void OnLogRouterAvailabilityChanged(bool router_can_be_used) override;
void SetSuspended(bool suspended) override;
void LogSavePasswordProgress(const std::string& text) const override;
bool IsLoggingActive() const override;
private:
// A LogRouter instance obtained on construction. May be null.
LogRouter* const log_router_;
// True if |this| is registered with some LogRouter which can accept logs.
bool can_use_log_router_;
bool is_suspended_ = false;
// Called every time the logging activity status changes.
base::Closure notification_callback_;
DISALLOW_COPY_AND_ASSIGN(LogManagerImpl);
};
LogManagerImpl::LogManagerImpl(LogRouter* log_router,
base::Closure notification_callback)
: log_router_(log_router),
can_use_log_router_(log_router_ && log_router_->RegisterManager(this)),
notification_callback_(notification_callback) {}
LogManagerImpl::~LogManagerImpl() {
if (log_router_)
log_router_->UnregisterManager(this);
}
void LogManagerImpl::OnLogRouterAvailabilityChanged(bool router_can_be_used) {
DCHECK(log_router_); // |log_router_| should be calling this method.
if (can_use_log_router_ == router_can_be_used)
return;
can_use_log_router_ = router_can_be_used;
if (!is_suspended_) {
// The availability of the logging changed as a result.
if (!notification_callback_.is_null())
notification_callback_.Run();
}
}
void LogManagerImpl::SetSuspended(bool suspended) {
if (suspended == is_suspended_)
return;
is_suspended_ = suspended;
if (can_use_log_router_) {
// The availability of the logging changed as a result.
if (!notification_callback_.is_null())
notification_callback_.Run();
}
}
void LogManagerImpl::LogSavePasswordProgress(const std::string& text) const {
if (!IsLoggingActive())
return;
log_router_->ProcessLog(text);
}
bool LogManagerImpl::IsLoggingActive() const {
return can_use_log_router_ && !is_suspended_;
}
} // namespace
// static
std::unique_ptr<LogManager> LogManager::Create(
LogRouter* log_router,
base::Closure notification_callback) {
return base::WrapUnique(
new LogManagerImpl(log_router, notification_callback));
}
} // namespace password_manager
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