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// Copyright 2012 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/webdata/web_data_request_manager.h"
#include "base/bind.h"
#include "base/message_loop.h"
#include "base/stl_util.h"
#include "chrome/browser/autofill/autofill_profile.h"
#include "chrome/browser/autofill/credit_card.h"
#include "chrome/browser/webdata/web_data_service.h"
////////////////////////////////////////////////////////////////////////////////
//
// WebDataRequest implementation.
//
////////////////////////////////////////////////////////////////////////////////
WebDataRequest::WebDataRequest(WebDataService* service,
WebDataServiceConsumer* consumer,
WebDataRequestManager* manager)
: service_(service),
cancelled_(false),
consumer_(consumer),
result_(NULL) {
handle_ = manager->GetNextRequestHandle();
message_loop_ = MessageLoop::current();
manager->RegisterRequest(this);
}
WebDataRequest::~WebDataRequest() {
}
WebDataService::Handle WebDataRequest::GetHandle() const {
return handle_;
}
WebDataServiceConsumer* WebDataRequest::GetConsumer() const {
return consumer_;
}
bool WebDataRequest::IsCancelled() const {
base::AutoLock l(cancel_lock_);
return cancelled_;
}
void WebDataRequest::Cancel() {
base::AutoLock l(cancel_lock_);
cancelled_ = true;
consumer_ = NULL;
}
void WebDataRequest::SetResult(scoped_ptr<WDTypedResult> r) {
result_ = r.Pass();
}
const WDTypedResult* WebDataRequest::GetResult() const {
return result_.get();
}
void WebDataRequest::RequestComplete() {
message_loop_->PostTask(FROM_HERE, Bind(&WebDataService::RequestCompleted,
service_.get(), handle_));
}
////////////////////////////////////////////////////////////////////////////////
//
// WebDataRequestManager implementation.
//
////////////////////////////////////////////////////////////////////////////////
WebDataRequestManager::WebDataRequestManager()
: next_request_handle_(1) {
}
WebDataRequestManager::~WebDataRequestManager() {
}
void WebDataRequestManager::RegisterRequest(WebDataRequest* request) {
base::AutoLock l(pending_lock_);
pending_requests_[request->GetHandle()] = request;
}
int WebDataRequestManager::GetNextRequestHandle() {
base::AutoLock l(pending_lock_);
return ++next_request_handle_;
}
void WebDataRequestManager::CancelRequest(WebDataServiceBase::Handle h) {
base::AutoLock l(pending_lock_);
RequestMap::iterator i = pending_requests_.find(h);
if (i == pending_requests_.end()) {
NOTREACHED() << "Canceling a nonexistent web data service request";
return;
}
i->second->Cancel();
}
void WebDataRequestManager::RequestCompleted(WebDataServiceBase::Handle h) {
pending_lock_.Acquire();
RequestMap::iterator i = pending_requests_.find(h);
if (i == pending_requests_.end()) {
NOTREACHED() << "Request completed called for an unknown request";
pending_lock_.Release();
return;
}
// Take ownership of the request object and remove it from the map.
scoped_ptr<WebDataRequest> request(i->second);
pending_requests_.erase(i);
pending_lock_.Release();
// Notify the consumer if needed.
WebDataServiceConsumer* consumer = request->GetConsumer();
if (!request->IsCancelled() && consumer) {
consumer->OnWebDataServiceRequestDone(request->GetHandle(),
request->GetResult());
} else {
// Nobody is taken ownership of the result, either because it is cancelled
// or there is no consumer. Destroy results that require special handling.
WDTypedResult const *result = request->GetResult();
if (result) {
result->Destroy();
}
}
}
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