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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/autofill/core/browser/logging/log_router.h"
#include "base/observer_list.h"
#include "base/strings/escape.h"
#include "base/strings/string_split.h"
#include "components/autofill/core/browser/logging/log_manager.h"
#include "components/autofill/core/browser/logging/log_receiver.h"
#include "components/autofill/core/common/logging/log_buffer.h"
namespace autofill {
LogRouter::LogRouter() = default;
LogRouter::~LogRouter() {
receivers_.RemoveObserver(&text_log_receiver_);
}
// static
base::Value::Dict LogRouter::CreateEntryForText(const std::string& text) {
LogBuffer buffer(LogBuffer::IsActive(true));
buffer << Tag{"div"};
for (const auto& line : base::SplitStringPiece(
text, "\n", base::TRIM_WHITESPACE, base::SPLIT_WANT_NONEMPTY)) {
buffer << line << Br{};
}
buffer << CTag{};
return *buffer.RetrieveResult();
}
void LogRouter::LogToTerminal() {
if (!receivers_.HasObserver(&text_log_receiver_)) {
receivers_.AddObserver(&text_log_receiver_);
}
}
bool LogRouter::HasReceivers() const {
return !receivers_.empty();
}
void LogRouter::ProcessLog(const std::string& text) {
ProcessLog(CreateEntryForText(text));
}
void LogRouter::ProcessLog(const base::Value::Dict& node) {
// This may not be called when there are no receivers (i.e., the router is
// inactive), because in that case the logs cannot be displayed.
DCHECK(HasReceivers());
for (LogReceiver& receiver : receivers_)
receiver.LogEntry(node);
}
bool LogRouter::RegisterManager(RoutingLogManager* manager) {
DCHECK(manager);
managers_.AddObserver(manager);
return HasReceivers();
}
void LogRouter::UnregisterManager(RoutingLogManager* manager) {
DCHECK(managers_.HasObserver(manager));
managers_.RemoveObserver(manager);
}
void LogRouter::RegisterReceiver(LogReceiver* receiver) {
DCHECK(receiver);
if (!HasReceivers()) {
for (RoutingLogManager& manager : managers_)
manager.OnLogRouterAvailabilityChanged(true);
}
receivers_.AddObserver(receiver);
}
void LogRouter::UnregisterReceiver(LogReceiver* receiver) {
DCHECK(receivers_.HasObserver(receiver));
receivers_.RemoveObserver(receiver);
if (!HasReceivers()) {
for (RoutingLogManager& manager : managers_)
manager.OnLogRouterAvailabilityChanged(false);
}
}
} // namespace autofill
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