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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.
#ifndef CONTENT_BROWSER_GAMEPAD_GAMEPAD_TEST_HELPERS_H_
#define CONTENT_BROWSER_GAMEPAD_GAMEPAD_TEST_HELPERS_H_
#include "base/memory/scoped_ptr.h"
#include "base/message_loop.h"
#include "base/synchronization/lock.h"
#include "base/synchronization/waitable_event.h"
#include "content/browser/gamepad/gamepad_data_fetcher.h"
#include "third_party/WebKit/Source/Platform/chromium/public/WebGamepads.h"
namespace base {
class SystemMonitor;
}
namespace content {
class GamepadService;
// Data fetcher that returns canned data for the gamepad provider.
class MockGamepadDataFetcher : public GamepadDataFetcher {
public:
// Initializes the fetcher with the given gamepad data, which will be
// returned when the provider queries us.
explicit MockGamepadDataFetcher(const WebKit::WebGamepads& test_data);
virtual ~MockGamepadDataFetcher();
// GamepadDataFetcher.
virtual void GetGamepadData(WebKit::WebGamepads* pads,
bool devices_changed_hint) OVERRIDE;
// Blocks the current thread until the GamepadProvider reads from this
// fetcher on the background thread.
void WaitForDataRead();
// Updates the test data.
void SetTestData(const WebKit::WebGamepads& new_data);
private:
base::Lock lock_;
WebKit::WebGamepads test_data_;
base::WaitableEvent read_data_;
DISALLOW_COPY_AND_ASSIGN(MockGamepadDataFetcher);
};
// Base class for the other test helpers. This just sets up the system monitor.
class GamepadTestHelper {
public:
GamepadTestHelper();
virtual ~GamepadTestHelper();
MessageLoop& message_loop() { return message_loop_; }
private:
// This must be constructed before the system monitor.
MessageLoop message_loop_;
scoped_ptr<base::SystemMonitor> system_monitor_;
DISALLOW_COPY_AND_ASSIGN(GamepadTestHelper);
};
// Constructs a GamepadService with a mock data source. This bypasses the
// global singleton for the gamepad service.
class GamepadServiceTestConstructor : public GamepadTestHelper {
public:
explicit GamepadServiceTestConstructor(const WebKit::WebGamepads& test_data);
virtual ~GamepadServiceTestConstructor();
GamepadService* gamepad_service() { return gamepad_service_; }
MockGamepadDataFetcher* data_fetcher() { return data_fetcher_; }
private:
// Owning pointer (can't be a scoped_ptr due to private destructor).
GamepadService* gamepad_service_;
// Pointer owned by the provider (which is owned by the gamepad service).
MockGamepadDataFetcher* data_fetcher_;
DISALLOW_COPY_AND_ASSIGN(GamepadServiceTestConstructor);
};
} // namespace content
#endif // CONTENT_BROWSER_GAMEPAD_GAMEPAD_TEST_HELPERS_H_
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