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// Copyright (c) 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.
// This file implements a mock location provider and the factory functions for
// various ways of creating it.
#include "content/browser/geolocation/mock_location_provider.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/compiler_specific.h"
#include "base/logging.h"
#include "base/memory/weak_ptr.h"
#include "base/message_loop/message_loop.h"
#include "base/message_loop/message_loop_proxy.h"
namespace content {
MockLocationProvider* MockLocationProvider::instance_ = NULL;
MockLocationProvider::MockLocationProvider(MockLocationProvider** self_ref)
: state_(STOPPED),
is_permission_granted_(false),
self_ref_(self_ref),
provider_loop_(base::MessageLoopProxy::current()) {
CHECK(self_ref_);
CHECK(*self_ref_ == NULL);
*self_ref_ = this;
}
MockLocationProvider::~MockLocationProvider() {
CHECK(*self_ref_ == this);
*self_ref_ = NULL;
}
void MockLocationProvider::HandlePositionChanged(const Geoposition& position) {
if (provider_loop_->BelongsToCurrentThread()) {
// The location arbitrator unit tests rely on this method running
// synchronously.
position_ = position;
NotifyCallback(position_);
} else {
provider_loop_->PostTask(
FROM_HERE,
base::Bind(&MockLocationProvider::HandlePositionChanged,
base::Unretained(this), position));
}
}
bool MockLocationProvider::StartProvider(bool high_accuracy) {
state_ = high_accuracy ? HIGH_ACCURACY : LOW_ACCURACY;
return true;
}
void MockLocationProvider::StopProvider() {
state_ = STOPPED;
}
void MockLocationProvider::GetPosition(Geoposition* position) {
*position = position_;
}
void MockLocationProvider::OnPermissionGranted() {
is_permission_granted_ = true;
}
// Mock location provider that automatically calls back its client at most
// once, when StartProvider or OnPermissionGranted is called. Use
// |requires_permission_to_start| to select which event triggers the callback.
class AutoMockLocationProvider : public MockLocationProvider {
public:
AutoMockLocationProvider(bool has_valid_location,
bool requires_permission_to_start)
: MockLocationProvider(&instance_),
weak_factory_(this),
requires_permission_to_start_(requires_permission_to_start),
listeners_updated_(false) {
if (has_valid_location) {
position_.accuracy = 3;
position_.latitude = 4.3;
position_.longitude = -7.8;
// Webkit compares the timestamp to wall clock time, so we need it to be
// contemporary.
position_.timestamp = base::Time::Now();
} else {
position_.error_code = Geoposition::ERROR_CODE_POSITION_UNAVAILABLE;
}
}
bool StartProvider(bool high_accuracy) override {
MockLocationProvider::StartProvider(high_accuracy);
if (!requires_permission_to_start_) {
UpdateListenersIfNeeded();
}
return true;
}
void OnPermissionGranted() override {
MockLocationProvider::OnPermissionGranted();
if (requires_permission_to_start_) {
UpdateListenersIfNeeded();
}
}
void UpdateListenersIfNeeded() {
if (!listeners_updated_) {
listeners_updated_ = true;
base::MessageLoop::current()->PostTask(
FROM_HERE,
base::Bind(&MockLocationProvider::HandlePositionChanged,
weak_factory_.GetWeakPtr(),
position_));
}
}
base::WeakPtrFactory<MockLocationProvider> weak_factory_;
const bool requires_permission_to_start_;
bool listeners_updated_;
};
LocationProvider* NewMockLocationProvider() {
return new MockLocationProvider(&MockLocationProvider::instance_);
}
LocationProvider* NewAutoSuccessMockLocationProvider() {
return new AutoMockLocationProvider(true, false);
}
LocationProvider* NewAutoFailMockLocationProvider() {
return new AutoMockLocationProvider(false, false);
}
LocationProvider* NewAutoSuccessMockNetworkLocationProvider() {
return new AutoMockLocationProvider(true, true);
}
} // namespace content
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