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// Copyright (c) 2010 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.
// TODO(joth): port to chromium
#if 0
#include "gears/geolocation/location_provider_pool.h"
#include <assert.h>
static const char16 *kMockString = STRING16(L"MOCK");
static const char16 *kGpsString = STRING16(L"GPS");
static const char16 *kNetworkString = STRING16(L"NETWORK");
// Local functions
static string16 MakeKey(const string16& type,
const string16& url,
const string16& host,
const string16& language);
// static member variables
LocationProviderPool LocationProviderPool::instance_;
LocationProviderPool::LocationProviderPool()
: use_mock_location_provider_(false) {
}
LocationProviderPool::~LocationProviderPool() {
#if BROWSER_IEMOBILE
// The lack of unload monitoring on IE Mobile on WinCE means that we may leak
// providers.
#else
DCHECK(providers_.empty());
#endif // BROWSER_IEMOBILE
}
// static
LocationProviderPool *LocationProviderPool::GetInstance() {
return &instance_;
}
LocationProviderBase* LocationProviderPool::Register(
BrowsingContext* browsing_context,
const string16& type,
const string16& url,
const string16& host,
bool request_address,
const string16& language,
LocationProviderBase::ListenerInterface* listener) {
DCHECK(listener);
MutexLock lock(&providers_mutex_);
string16 key = MakeKey(type, url, host, language);
ProviderMap::iterator iter = providers_.find(key);
if (iter == providers_.end()) {
LocationProviderBase *provider = NewProvider(browsing_context, type, url,
host, language);
if (!provider) {
return NULL;
}
std::pair<ProviderMap::iterator, bool> result =
providers_.insert(
std::make_pair(key,
std::make_pair(provider, new RefCount())));
DCHECK(result.second);
iter = result.first;
}
LocationProviderBase *provider = iter->second.first;
DCHECK(provider);
provider->RegisterListener(listener, request_address);
RefCount* count = iter->second.second;
DCHECK(count);
count->Ref();
return provider;
}
bool LocationProviderPool::Unregister(
LocationProviderBase* provider,
LocationProviderBase::ListenerInterface* listener) {
DCHECK(provider);
DCHECK(listener);
MutexLock lock(&providers_mutex_);
for (ProviderMap::iterator iter = providers_.begin();
iter != providers_.end();
++iter) {
LocationProviderBase* current_provider = iter->second.first;
if (current_provider == provider) {
current_provider->UnregisterListener(listener);
RefCount *count = iter->second.second;
DCHECK(count);
if (count->Unref()) {
delete current_provider;
delete count;
providers_.erase(iter);
}
return true;
}
}
return false;
}
void LocationProviderPool::UseMockLocationProvider(
bool use_mock_location_provider) {
use_mock_location_provider_ = use_mock_location_provider;
}
LocationProviderBase* LocationProviderPool::NewProvider(
BrowsingContext* browsing_context,
const string16& type,
const string16& url,
const string16& host,
const string16& language) {
if (type == kMockString) {
// use_mock_location_provider_ can only be set to true in a build that uses
// USING_CCTESTS.
#if USING_CCTESTS
if (use_mock_location_provider_) {
return NewMockLocationProvider();
} else {
return NULL;
}
#else
return NULL;
#endif // USING_CCTESTS
} else if (type == kGpsString) {
return NewGpsLocationProvider(browsing_context, url, host, language);
} else if (type == kNetworkString) {
return NewNetworkLocationProvider(browsing_context, url, host, language);
}
DCHECK(false);
return NULL;
}
// Local function
static string16 MakeKey(const string16& type,
const string16& url,
const string16& host,
const string16& language) {
// Network requests are made from a specific host and use a specific language.
// Therefore we must key network and GPS providers on server URL, host and
// language.
if (type == kMockString) {
return type;
} else if (type == kGpsString || type == kNetworkString) {
string16 key = type;
if (!url.empty()) {
key += STRING16(L" url=") + url;
}
if (!host.empty()) {
key += STRING16(L" host=") + host;
}
if (!language.empty()) {
key += STRING16(L" language=") + language;
}
return key;
}
DCHECK(false);
return STRING16(L"");
}
#endif // if 0
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