-//
-// NJDeviceController.m
-// Enjoy
-//
-// Created by Sam McCall on 4/05/09.
-//
-
-#import "NJDeviceController.h"
-
-#import "NJMapping.h"
-#import "NJMappingsController.h"
-#import "NJDevice.h"
-#import "NJInput.h"
-#import "NJOutput.h"
-#import "NJEvents.h"
-
-@implementation NJDeviceController {
- NJHIDManager *_hidManager;
- NSTimer *_continuousOutputsTick;
- NSMutableArray *_continousOutputs;
- NSMutableArray *_devices;
-}
-
-#define NSSTR(e) ((NSString *)CFSTR(e))
-
-- (id)init {
- if ((self = [super init])) {
- _devices = [[NSMutableArray alloc] initWithCapacity:16];
- _continousOutputs = [[NSMutableArray alloc] initWithCapacity:32];
-
- _hidManager = [[NJHIDManager alloc] initWithCriteria:@[
- @{ NSSTR(kIOHIDDeviceUsagePageKey) : @(kHIDPage_GenericDesktop),
- NSSTR(kIOHIDDeviceUsageKey) : @(kHIDUsage_GD_Joystick) },
- @{ NSSTR(kIOHIDDeviceUsagePageKey) : @(kHIDPage_GenericDesktop),
- NSSTR(kIOHIDDeviceUsageKey) : @(kHIDUsage_GD_GamePad) },
- @{ NSSTR(kIOHIDDeviceUsagePageKey) : @(kHIDPage_GenericDesktop),
- NSSTR(kIOHIDDeviceUsageKey) : @(kHIDUsage_GD_MultiAxisController) }
- ]
- delegate:self];
-
- // The HID manager uses 5-10ms per second doing basically
- // nothing if a noisy device is plugged in (the % of that
- // spent in input_callback is negligible, so it's not
- // something we can make faster). I don't really think that's
- // acceptable, CPU/power wise. So if simulation is disabled
- // and the window is closed, just switch off the HID manager
- // entirely. This probably also has some marginal benefits for
- // compatibility with other applications that want exclusive
- // grabs.
- [NSNotificationCenter.defaultCenter
- addObserver:self
- selector:@selector(stopHidIfDisabled:)
- name:NSApplicationDidResignActiveNotification
- object:nil];
- [NSNotificationCenter.defaultCenter
- addObserver:self
- selector:@selector(startHid)
- name:NSApplicationDidBecomeActiveNotification
- object:nil];
- }
- return self;
-}
-
-- (void)dealloc {
- [NSNotificationCenter.defaultCenter removeObserver:self];
- [_continuousOutputsTick invalidate];
-}
-
-- (void)addRunningOutput:(NJOutput *)output {
- // Axis events will trigger every small movement, don't keep
- // re-adding them or they trigger multiple times each time.
- if (![_continousOutputs containsObject:output])
- [_continousOutputs addObject:output];
- if (!_continuousOutputsTick) {
- _continuousOutputsTick = [NSTimer scheduledTimerWithTimeInterval:1.0/60.0
- target:self
- selector:@selector(updateContinuousOutputs:)
- userInfo:nil
- repeats:YES];
- }
-}
-
-- (void)runOutputForDevice:(IOHIDDeviceRef)device value:(IOHIDValueRef)value {
- NJDevice *dev = [self findDeviceByRef:device];
- NJInput *mainInput = [dev inputForEvent:value];
- [mainInput notifyEvent:value];
- NSArray *children = mainInput.children ? mainInput.children : mainInput ? @[mainInput] : @[];
- for (NJInput *subInput in children) {
- NJOutput *output = mappingsController.currentMapping[subInput];
- output.magnitude = subInput.magnitude;
- output.running = subInput.active;
- if ((output.running || output.magnitude) && output.isContinuous)
- [self addRunningOutput:output];
- }
-}
-
-- (void)showOutputForDevice:(IOHIDDeviceRef)device value:(IOHIDValueRef)value {
- NJDevice *dev = [self findDeviceByRef:device];
- NJInput *handler = [dev handlerForEvent:value];
- if (!handler)
- return;
-
- [self.delegate deviceController:self didInput:handler];
-}
-
-- (void)hidManager:(NJHIDManager *)manager
- valueChanged:(IOHIDValueRef)value
- fromDevice:(IOHIDDeviceRef)device {
- if (self.simulatingEvents
- && !NSApplication.sharedApplication.isActive) {
- [self runOutputForDevice:device value:value];
- } else {
- [self showOutputForDevice:device value:value];
- }
-}
-
-- (void)addDevice:(NJDevice *)device {
- BOOL available;
- do {
- available = YES;
- for (NJDevice *used in _devices) {
- if ([used isEqual:device]) {
- device.index += 1;
- available = NO;
- }
- }
- } while (!available);
-
- [_devices addObject:device];
-}
-
-- (void)hidManager:(NJHIDManager *)manager deviceAdded:(IOHIDDeviceRef)device {
- NJDevice *match = [[NJDevice alloc] initWithDevice:device];
- [self addDevice:match];
- [self.delegate deviceController:self didAddDevice:match];
-}
-
-- (NJDevice *)findDeviceByRef:(IOHIDDeviceRef)device {
- for (NJDevice *dev in _devices)
- if (dev.device == device)
- return dev;
- return nil;
-}
-
-- (void)hidManager:(NJHIDManager *)manager deviceRemoved:(IOHIDDeviceRef)device {
- NJDevice *match = [self findDeviceByRef:device];
- if (match) {
- NSInteger idx = [_devices indexOfObjectIdenticalTo:match];
- [_devices removeObjectAtIndex:idx];
- [self.delegate deviceController:self didRemoveDeviceAtIndex:idx];
- }
-}
-
-- (void)updateContinuousOutputs:(NSTimer *)timer {
- self.mouseLoc = [NSEvent mouseLocation];
- for (NJOutput *output in [_continousOutputs copy]) {
- if (![output update:self]) {
- [_continousOutputs removeObject:output];
- }
- }
- if (!_continousOutputs.count) {
- [_continuousOutputsTick invalidate];
- _continuousOutputsTick = nil;
- }
-}
-
-- (void)hidManager:(NJHIDManager *)manager didError:(NSError *)error {
- [self.delegate deviceController:self didError:error];
- self.simulatingEvents = NO;
-}
-
-- (void)hidManagerDidStart:(NJHIDManager *)manager {
- [self.delegate deviceControllerDidStartHID:self];
-}
-
-- (void)hidManagerDidStop:(NJHIDManager *)manager {
- [_devices removeAllObjects];
- [self.delegate deviceControllerDidStopHID:self];
-}
-
-- (void)startHid {
- [_hidManager start];
-}
-
-- (void)stopHid {
- [_hidManager stop];
-}
-
-- (void)setSimulatingEvents:(BOOL)simulatingEvents {
- if (simulatingEvents != _simulatingEvents) {
- _simulatingEvents = simulatingEvents;
- NSString *name = simulatingEvents
- ? NJEventSimulationStarted
- : NJEventSimulationStopped;
- [NSNotificationCenter.defaultCenter postNotificationName:name
- object:self];
-
- if (!simulatingEvents && !NSApplication.sharedApplication.isActive)
- [self stopHid];
- else
- [self startHid];
- }
-}
-
-- (void)stopHidIfDisabled:(NSNotification *)application {
- if (!self.simulatingEvents && !NSProcessInfo.processInfo.isBeingDebugged)
- [self stopHid];
-}
-
-- (NJInputPathElement *)elementForUID:(NSString *)uid {
- for (NJDevice *dev in _devices) {
- id item = [dev elementForUID:uid];
- if (item)
- return item;
- }
- return nil;
-}
-
-@end
projects / enjoyable.git / blobdiff