| // 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 |