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// 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/sync/js/js_transaction_observer.h"
#include <sstream>
#include <string>
#include "base/logging.h"
#include "base/tracked.h"
#include "base/values.h"
#include "chrome/browser/sync/js/js_event_details.h"
#include "chrome/browser/sync/js/js_event_handler.h"
namespace browser_sync {
JsTransactionObserver::JsTransactionObserver() {}
JsTransactionObserver::~JsTransactionObserver() {
DCHECK(non_thread_safe_.CalledOnValidThread());
}
void JsTransactionObserver::SetJsEventHandler(
const WeakHandle<JsEventHandler>& event_handler) {
event_handler_ = event_handler;
}
namespace {
std::string GetLocationString(const tracked_objects::Location& location) {
std::ostringstream oss;
oss << location.function_name() << "@"
<< location.file_name() << ":" << location.line_number();
return oss.str();
}
} // namespace
void JsTransactionObserver::OnTransactionStart(
const tracked_objects::Location& location,
const syncable::WriterTag& writer) {
DCHECK(non_thread_safe_.CalledOnValidThread());
if (!event_handler_.IsInitialized()) {
return;
}
DictionaryValue details;
details.SetString("location", GetLocationString(location));
details.SetString("writer", syncable::WriterTagToString(writer));
HandleJsEvent(FROM_HERE, "onTransactionStart", JsEventDetails(&details));
}
void JsTransactionObserver::OnTransactionMutate(
const tracked_objects::Location& location,
const syncable::WriterTag& writer,
const syncable::EntryKernelMutationSet& mutations,
const syncable::ModelTypeBitSet& models_with_changes) {
DCHECK(non_thread_safe_.CalledOnValidThread());
if (!event_handler_.IsInitialized()) {
return;
}
DictionaryValue details;
details.SetString("location", GetLocationString(location));
details.SetString("writer", syncable::WriterTagToString(writer));
details.Set("mutations", syncable::EntryKernelMutationSetToValue(mutations));
details.Set("modelsWithChanges",
syncable::ModelTypeBitSetToValue(models_with_changes));
HandleJsEvent(FROM_HERE, "onTransactionMutate", JsEventDetails(&details));
}
void JsTransactionObserver::OnTransactionEnd(
const tracked_objects::Location& location,
const syncable::WriterTag& writer) {
DCHECK(non_thread_safe_.CalledOnValidThread());
if (!event_handler_.IsInitialized()) {
return;
}
DictionaryValue details;
details.SetString("location", GetLocationString(location));
details.SetString("writer", syncable::WriterTagToString(writer));
HandleJsEvent(FROM_HERE, "onTransactionEnd", JsEventDetails(&details));
}
void JsTransactionObserver::HandleJsEvent(
const tracked_objects::Location& from_here,
const std::string& name, const JsEventDetails& details) {
if (!event_handler_.IsInitialized()) {
NOTREACHED();
return;
}
event_handler_.Call(from_here,
&JsEventHandler::HandleJsEvent, name, details);
}
} // namespace browser_sync
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