EmscriptenInputProcessor.h

// Copyright eeGeo Ltd (2012-2014), All Rights Reserved

#pragma once

#include "IEmscriptenInputHandler.h"
#include "PanGesture.h"
#include "RotateGesture.h"
#include "ZoomGesture.h"
#include "TiltGesture.h"
#include "TouchGesture.h"
#include "TapGesture.h"
#include "TouchPanGesture.h"
#include "TouchRotateGesture.h"
#include "TouchPinchGesture.h"
#include "InputEvents.h"
#include "UserIdleService.h"

namespace Eegeo
{
    namespace Emscripten
    {
        namespace Input
        {
            struct EmscriptenInputProcessorConfig
            {
                EmscriptenInputProcessorConfig()
                    : PanStartThresholdPixels(0.f)
                    , ZoomSensitivity(0.f)
                    , MaxZoomDelta(0.f)
                {}

                float PanStartThresholdPixels;
                float ZoomSensitivity;
                float MaxZoomDelta;
            };

            class EmscriptenInputProcessor
            {
            private:
                IEmscriptenInputHandler* m_pHandler;
                Eegeo::Input::UserIdleService m_userIdleService;
                float m_screenWidth;
                float m_screenHeight;

                PanGesture m_pan;
                ZoomGesture m_zoom;
                RotateGesture m_rotate;
                TiltGesture m_tilt;
                TouchGesture m_touch;
                TapGesture m_tap;

                TouchPanGesture m_touchPan;
                TouchRotateGesture m_touchRotate;
                TouchPinchGesture m_touchPinch;

            public:
                static u32 MakeKeyboardModifiers(bool altDown, bool shiftDown, bool controlDown);

                EmscriptenInputProcessor(
                    IEmscriptenInputHandler* pHandler,
                    const float screenWidth,
                    const float screenHeight,
                    const EmscriptenInputProcessorConfig& config
                );

                void HandleInput(const MouseInputEvent& event);
                void HandleInput(const KeyboardInputEvent& keyEvent);
                void HandleInput(const TouchInputEvent& touchEvent);
                void Update(float deltaSeconds);

                bool IsMouseInsideWindow();
                void SetAllInputEventsToPointerUp(int x, int y);

                inline static EmscriptenInputProcessorConfig DefaultConfig();

                static MouseInputEvent MakeMouseInputEvent(MouseInputAction mouseInputAction, u32 modifiers, float pointerX, float pointerY, float wheelDelta);

                void NotifyScreenPropertiesChanged(int screenWidth, int screenHeight);

                const Eegeo::Input::IUserIdleService& GetUserIdleService() const;
            };

            inline EmscriptenInputProcessorConfig EmscriptenInputProcessor::DefaultConfig()
            {
                EmscriptenInputProcessorConfig config;
                config.PanStartThresholdPixels = 4.f;
                config.ZoomSensitivity = 0.0003f;
                config.MaxZoomDelta = 5.0f;
                return config;
            }
        }
    }
}