////  JoystickScriptingInterface.cpp//  interface/src/devices////  Created by Andrzej Kapolka on 5/15/14.//  Copyright 2014 High Fidelity, Inc.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html// #include <qapplication.h>#include <QtDebug>#include <QScriptValue> #ifdef HAVE_SDL2#include <SDL.h>#undef main#endif #include <HFActionEvent.h>#include <HFBackEvent.h>#include <PerfStat.h> #include "Application.h"  #include "JoystickScriptingInterface.h" #ifdef HAVE_SDL2SDL_JoystickID getInstanceId(SDL_GameController* controller) {    SDL_Joystick* joystick = SDL_GameControllerGetJoystick(controller);    return SDL_JoystickInstanceID(joystick);}#endif JoystickScriptingInterface& JoystickScriptingInterface::getInstance() {    static JoystickScriptingInterface sharedInstance;    return sharedInstance;} JoystickScriptingInterface::JoystickScriptingInterface() :#ifdef HAVE_SDL2    _openJoysticks(),#endif    _isInitialized(false){#ifdef HAVE_SDL2    bool initSuccess = (SDL_Init(SDL_INIT_GAMECONTROLLER) == 0);        if (initSuccess) {        int joystickCount = SDL_NumJoysticks();         for (int i = 0; i < joystickCount; i++) {            SDL_GameController* controller = SDL_GameControllerOpen(i);                        if (controller) {                SDL_JoystickID id = getInstanceId(controller);                Joystick* joystick = new Joystick(id, SDL_GameControllerName(controller), controller);                _openJoysticks[id] = joystick;            }        }         _isInitialized = true;    } else {        qDebug() << "Error initializing SDL";    }#endif} JoystickScriptingInterface::~JoystickScriptingInterface() {#ifdef HAVE_SDL2    qDeleteAll(_openJoysticks);        SDL_Quit();#endif} const QObjectList JoystickScriptingInterface::getAllJoysticks() const {    QObjectList objectList;#ifdef HAVE_SDL2    const QList<Joystick*> joystickList = _openJoysticks.values();    for (int i = 0; i < joystickList.length(); i++) {        objectList << joystickList[i];    }#endif    return objectList;} Joystick* JoystickScriptingInterface::joystickWithName(const QString& name) {#ifdef HAVE_SDL2    QMap<SDL_JoystickID, Joystick*>::iterator iter = _openJoysticks.begin();    while (iter != _openJoysticks.end()) {        if (iter.value()->getName() == name) {            return iter.value();        }        iter++;    }#endif    return NULL;} void JoystickScriptingInterface::update() {#ifdef HAVE_SDL2    if (_isInitialized) {        PerformanceTimer perfTimer("JoystickScriptingInterface::update");        SDL_GameControllerUpdate();        SDL_Event event;        while (SDL_PollEvent(&event)) {            if (event.type == SDL_CONTROLLERAXISMOTION) {                Joystick* joystick = _openJoysticks[event.caxis.which];                if (joystick) {                    joystick->handleAxisEvent(event.caxis);                }            } else if (event.type == SDL_CONTROLLERBUTTONDOWN || event.type == SDL_CONTROLLERBUTTONUP) {                Joystick* joystick = _openJoysticks[event.cbutton.which];                if (joystick) {                    joystick->handleButtonEvent(event.cbutton);                }                                if (event.cbutton.button == SDL_CONTROLLER_BUTTON_BACK) {                    // this will either start or stop a global back event                    QEvent::Type backType = (event.type == SDL_CONTROLLERBUTTONDOWN)                        ? HFBackEvent::startType()                        : HFBackEvent::endType();                    HFBackEvent backEvent(backType);                                        qApp->sendEvent(qApp, &backEvent);                } else if (event.cbutton.button == SDL_CONTROLLER_BUTTON_A) {                    // this will either start or stop a global action event                    QEvent::Type actionType = (event.type == SDL_CONTROLLERBUTTONDOWN)                        ? HFActionEvent::startType()                        : HFActionEvent::endType();                                        // global action events fire in the center of the screen                    Application* app = Application::getInstance();                    PickRay pickRay = app->getCamera()->computePickRay(app->getTrueMouseX(),                                                                       app->getTrueMouseY());                    HFActionEvent actionEvent(actionType, pickRay);                    qApp->sendEvent(qApp, &actionEvent);                }                            } else if (event.type == SDL_CONTROLLERDEVICEADDED) {                SDL_GameController* controller = SDL_GameControllerOpen(event.cdevice.which);                 SDL_JoystickID id = getInstanceId(controller);                Joystick* joystick = new Joystick(id, SDL_GameControllerName(controller), controller);                _openJoysticks[id] = joystick;                emit joystickAdded(joystick);            } else if (event.type == SDL_CONTROLLERDEVICEREMOVED) {                Joystick* joystick = _openJoysticks[event.cdevice.which];                _openJoysticks.remove(event.cdevice.which);                emit joystickRemoved(joystick);            }        }    }#endif}