Add USB mouse/trackpad auto-detection, cleanup
This commit is contained in:
parent
4403fb8eca
commit
e7da1fac30
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@ -11,6 +11,8 @@
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D62D7D8326DE7A9F001DCC5F /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = D62D7D8226DE7A9F001DCC5F /* Assets.xcassets */; };
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D62D7D9226DF237A001DCC5F /* PreferencePanesSupport.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = D62D7D9126DF237A001DCC5F /* PreferencePanesSupport.framework */; };
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D6955CDC26DF287800EB0723 /* main.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6955CDB26DF287800EB0723 /* main.swift */; };
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D6AB3C8A26EE52020019A4F7 /* Preferences.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6AB3C8926EE52010019A4F7 /* Preferences.swift */; };
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D6AB3C8C26EE56540019A4F7 /* Direction.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6AB3C8B26EE56540019A4F7 /* Direction.swift */; };
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/* End PBXBuildFile section */
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/* Begin PBXFileReference section */
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@ -21,6 +23,8 @@
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D62D7D8F26DF228D001DCC5F /* ScrollSwitcher-Bridging-Header.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "ScrollSwitcher-Bridging-Header.h"; sourceTree = "<group>"; };
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D62D7D9126DF237A001DCC5F /* PreferencePanesSupport.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = PreferencePanesSupport.framework; path = ../../../../System/Library/PrivateFrameworks/PreferencePanesSupport.framework; sourceTree = "<group>"; };
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D6955CDB26DF287800EB0723 /* main.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = main.swift; sourceTree = "<group>"; };
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D6AB3C8926EE52010019A4F7 /* Preferences.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Preferences.swift; sourceTree = "<group>"; };
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D6AB3C8B26EE56540019A4F7 /* Direction.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Direction.swift; sourceTree = "<group>"; };
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/* End PBXFileReference section */
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/* Begin PBXFrameworksBuildPhase section */
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@ -58,6 +62,8 @@
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D62D7D8C26DE7B36001DCC5F /* Info.plist */,
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D6955CDB26DF287800EB0723 /* main.swift */,
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D62D7D7E26DE7A9D001DCC5F /* AppDelegate.swift */,
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D6AB3C8B26EE56540019A4F7 /* Direction.swift */,
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D6AB3C8926EE52010019A4F7 /* Preferences.swift */,
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D62D7D8F26DF228D001DCC5F /* ScrollSwitcher-Bridging-Header.h */,
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D62D7D8226DE7A9F001DCC5F /* Assets.xcassets */,
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);
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@ -143,6 +149,8 @@
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files = (
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D6955CDC26DF287800EB0723 /* main.swift in Sources */,
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D62D7D7F26DE7A9D001DCC5F /* AppDelegate.swift in Sources */,
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D6AB3C8A26EE52020019A4F7 /* Preferences.swift in Sources */,
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D6AB3C8C26EE56540019A4F7 /* Direction.swift in Sources */,
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);
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runOnlyForDeploymentPostprocessing = 0;
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};
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@ -283,6 +291,7 @@
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"$(inherited)",
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"@executable_path/../Frameworks",
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);
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MACOSX_DEPLOYMENT_TARGET = 11.3;
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MARKETING_VERSION = 1.0;
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PRODUCT_BUNDLE_IDENTIFIER = net.shadowfacts.ScrollSwitcher;
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PRODUCT_NAME = "$(TARGET_NAME)";
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@ -315,6 +324,7 @@
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"$(inherited)",
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"@executable_path/../Frameworks",
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);
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MACOSX_DEPLOYMENT_TARGET = 11.3;
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MARKETING_VERSION = 1.0;
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PRODUCT_BUNDLE_IDENTIFIER = net.shadowfacts.ScrollSwitcher;
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PRODUCT_NAME = "$(TARGET_NAME)";
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@ -6,14 +6,24 @@
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//
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import Cocoa
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import IOKit
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import Combine
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import OSLog
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let defaultsKey = "com.apple.swipescrolldirection"
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let logger = Logger(subsystem: Bundle.main.bundleIdentifier!, category: "main")
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class AppDelegate: NSObject, NSApplicationDelegate {
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// things that need to be retained to keep them from disappearing
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private var prefPanesSupport: Bundle!
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private var item: NSStatusItem!
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private var manager: IOHIDManager!
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private var cancellables = Set<AnyCancellable>()
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// internal not private because they need to be accessible from global IOHIDManager callbacks
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var hidDevicesChangedSubject = PassthroughSubject<Void, Never>()
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var trackpadCount = 0
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var mouseCount = 0
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func applicationDidFinishLaunching(_ aNotification: Notification) {
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item = NSStatusBar.system.statusItem(withLength: NSStatusItem.squareLength)
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@ -23,6 +33,28 @@ class AppDelegate: NSObject, NSApplicationDelegate {
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// update the icon when system prefs changes
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DistributedNotificationCenter.default().addObserver(self, selector: #selector(updateIcon), name: .swipeScrollDirectionDidChangeNotification, object: nil)
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// register for HID device addition/removal notifications
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manager = IOHIDManagerCreate(kCFAllocatorDefault, 0 /* kIOHIDManagerOptionNone */)
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var dict = IOServiceMatching(kIOHIDDeviceKey)! as! [String: Any]
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dict[kIOHIDDeviceUsagePageKey] = kHIDPage_GenericDesktop
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dict[kIOHIDDeviceUsageKey] = kHIDUsage_GD_Mouse
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IOHIDManagerSetDeviceMatching(manager, dict as CFDictionary)
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IOHIDManagerRegisterDeviceMatchingCallback(manager, hidDeviceAdded(context:result:sender:device:), nil)
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IOHIDManagerRegisterDeviceRemovalCallback(manager, hidDeviceRemoved(context:result:sender:device:), nil)
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IOHIDManagerScheduleWithRunLoop(manager, CFRunLoopGetCurrent(), CFRunLoopMode.commonModes.rawValue)
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// handle HID device changes debounced, because IOKit sends a whole at initialization (and seemingly duplicates when devices are removed/connected)
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hidDevicesChangedSubject
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.debounce(for: .seconds(0.1), scheduler: RunLoop.main)
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.sink { [unowned self] (_) in
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logger.info("HID devices changed, trackpads: \(self.trackpadCount, privacy: .public), mice: \(self.mouseCount, privacy: .public)")
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self.updateDirectionForAutoMode()
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}
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.store(in: &cancellables)
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}
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@objc private func updateIcon() {
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@ -43,11 +75,31 @@ class AppDelegate: NSObject, NSApplicationDelegate {
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menu.delegate = self
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let state = Direction.current == .natural ? "On" : "Off"
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let status = NSMenuItem(title: "Natural Scrolling: \(state)", action: nil, keyEquivalent: "")
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status.isEnabled = true
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status.attributedTitle = NSAttributedString(string: "Natural Scrolling: \(state)", attributes: [
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.foregroundColor: NSColor.white,
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])
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menu.addItem(status)
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let verb = Direction.current == .natural ? "Disable" : "Enable"
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let toggleItem = NSMenuItem(title: "\(verb) Natural Scrolling", action: #selector(toggleScrollDirection), keyEquivalent: "")
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menu.addItem(toggleItem)
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menu.addItem(NSMenuItem.separator())
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let autoItem = NSMenuItem(title: "Auto Switching Mode", action: nil, keyEquivalent: "")
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let autoMenu = NSMenu()
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for mode in Preferences.AutoMode.allCases {
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let modeItem = NSMenuItem(title: mode.displayName, action: #selector(modeChanged(_:)), keyEquivalent: "")
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modeItem.tag = mode.rawValue
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modeItem.toolTip = mode.displayDescription
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modeItem.state = Preferences.autoMode == mode ? .on : .off
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autoMenu.addItem(modeItem)
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}
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autoItem.submenu = autoMenu
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menu.addItem(autoItem)
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menu.addItem(NSMenuItem.separator())
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menu.addItem(withTitle: "Quit", action: #selector(NSApplication.terminate(_:)), keyEquivalent: "q")
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return menu
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}
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@ -56,31 +108,29 @@ class AppDelegate: NSObject, NSApplicationDelegate {
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setDirection(.current == Direction.natural ? .normal : .natural)
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}
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private func setDirection(_ new: Direction) {
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// can't construct a UserDefaults with NSGlobalDomain, so set it via the command line
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let proc = Process()
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// let out = Pipe()
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// let err = Pipe()
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proc.launchPath = "/usr/bin/env"
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let newVal = new == .normal ? "NO" : "YES"
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proc.arguments = ["defaults", "write", "-g", "com.apple.swipescrolldirection", "-bool", newVal]
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// proc.standardOutput = out
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// proc.standardError = err
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proc.launch()
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proc.waitUntilExit()
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// let outData = out.fileHandleForReading.readDataToEndOfFile()
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// let errData = err.fileHandleForReading.readDataToEndOfFile()
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if proc.terminationStatus != 0 {
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fatalError("uh oh, exit code: \(proc.terminationStatus)")
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@objc private func modeChanged(_ sender: NSMenuItem) {
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Preferences.autoMode = Preferences.AutoMode(rawValue: sender.tag) ?? .disabled
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updateDirectionForAutoMode()
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}
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// makes system preferences update
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DistributedNotificationCenter.default().postNotificationName(.swipeScrollDirectionDidChangeNotification, object: nil, userInfo: nil, deliverImmediately: false)
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// make the actual input behavior update
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private func setDirection(_ new: Direction) {
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logger.debug("Changing scroll direction to \(new == .normal ? "Normal" : "Natural", privacy: .public)")
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setSwipeScrollDirection(new == .natural)
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}
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private func updateDirectionForAutoMode() {
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switch Preferences.autoMode {
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case .disabled:
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return
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case .normalWhenMousePresent:
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setDirection(mouseCount > 0 ? .normal : .natural)
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case .naturalWhenTrackpadPresent:
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setDirection(trackpadCount > 0 ? .natural : .normal)
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}
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}
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}
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extension AppDelegate: NSMenuDelegate {
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@ -90,28 +140,81 @@ extension AppDelegate: NSMenuDelegate {
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}
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}
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enum Direction: Equatable {
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case normal, natural
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static var current: Direction {
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let value = UserDefaults.standard.bool(forKey: defaultsKey)
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if value {
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return .natural
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} else {
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return .normal
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}
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}
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var image: NSImage {
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switch self {
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case .normal:
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return NSImage(systemSymbolName: "scroll", accessibilityDescription: nil)!
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case .natural:
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return NSImage(systemSymbolName: "scroll.fill", accessibilityDescription: nil)!
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}
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}
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}
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extension Notification.Name {
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static let swipeScrollDirectionDidChangeNotification = Notification.Name(rawValue: "SwipeScrollDirectionDidChangeNotification")
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}
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func hidDeviceAdded(context: UnsafeMutableRawPointer?, result: IOReturn, sender: UnsafeMutableRawPointer?, device: IOHIDDevice) {
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// it is not clear to me why you can interpolate device here but not in the log message
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let deviceDesc = "\(device)"
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let name = IOHIDDeviceGetProperty(device, kIOHIDProductKey as CFString) as? String
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guard let name = name else {
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logger.warning("Could not get product name for \(deviceDesc, privacy: .public)")
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return
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}
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let usage = IOHIDDeviceGetProperty(device, kIOHIDPrimaryUsageKey as CFString) as? UInt32
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// we get this callback for non kHIDUsage_GD_Mouse devices even though we specify that in the matching dict
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// (specifically, something with kHIDUsage_GD_SystemControl), so filter ourselves
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guard let usage = usage else {
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logger.warning("Could not get usage for \(deviceDesc, privacy: .public)")
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return
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}
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guard usage == kHIDUsage_GD_Mouse else {
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logger.info("Unexpected usage 0x\(usage, format: .hex, privacy: .public) for device '\(name, privacy: .public)'")
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return
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}
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logger.debug("HID device '\(name, privacy: .public)' added")
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let delegate = NSApp.delegate as! AppDelegate
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if deviceNameIsProbablyTrackpad(name) {
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delegate.trackpadCount += 1
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} else {
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delegate.mouseCount += 1
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}
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delegate.hidDevicesChangedSubject.send()
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}
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func hidDeviceRemoved(context: UnsafeMutableRawPointer?, result: IOReturn, sender: UnsafeMutableRawPointer?, device: IOHIDDevice) {
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let deviceDesc = "\(device)"
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let name = IOHIDDeviceGetProperty(device, kIOHIDProductKey as CFString) as? String
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guard let name = name else {
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logger.warning("Could not get product name for \(deviceDesc, privacy: .public)")
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return
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}
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let usage = IOHIDDeviceGetProperty(device, kIOHIDPrimaryUsageKey as CFString) as? UInt32
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guard let usage = usage else {
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logger.warning("Could not get usage for \(deviceDesc, privacy: .public)")
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return
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}
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guard usage == kHIDUsage_GD_Mouse else {
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logger.info("Unexpected usage 0x\(usage, format: .hex, privacy: .public) for device '\(name, privacy: .public)'")
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return
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}
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logger.debug("HID device '\(name, privacy: .public)' removed")
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let delegate = NSApp.delegate as! AppDelegate
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if deviceNameIsProbablyTrackpad(name) {
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delegate.trackpadCount -= 1
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} else {
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delegate.mouseCount -= 1
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}
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delegate.hidDevicesChangedSubject.send()
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}
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// dumb heuristics because USB HID doesn't differentiate between mice/trackpads
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func deviceNameIsProbablyTrackpad(_ name: String) -> Bool {
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if name.lowercased().contains("trackpad") {
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return true
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}
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return false
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}
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@ -0,0 +1,33 @@
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//
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// Direction.swift
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// ScrollSwitcher
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//
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// Created by Shadowfacts on 9/12/21.
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//
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import AppKit
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let defaultsKey = "com.apple.swipescrolldirection"
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enum Direction: Equatable {
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case normal, natural
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static var current: Direction {
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let value = UserDefaults.standard.bool(forKey: defaultsKey)
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if value {
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return .natural
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} else {
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return .normal
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}
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}
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var image: NSImage {
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switch self {
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case .normal:
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return NSImage(systemSymbolName: "scroll", accessibilityDescription: nil)!
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case .natural:
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return NSImage(systemSymbolName: "scroll.fill", accessibilityDescription: nil)!
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}
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}
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}
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@ -0,0 +1,52 @@
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//
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// Preferences.swift
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// ScrollSwitcher
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//
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// Created by Shadowfacts on 9/12/21.
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//
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import Foundation
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struct Preferences {
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private static let autoModeKey = "autoMode"
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static var autoMode: AutoMode {
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get {
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AutoMode(rawValue: UserDefaults.standard.integer(forKey: autoModeKey)) ?? .disabled
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}
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set {
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UserDefaults.standard.set(newValue.rawValue, forKey: autoModeKey)
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}
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}
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}
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extension Preferences {
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enum AutoMode: Int, Codable, CaseIterable, Equatable {
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case disabled = 0
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case normalWhenMousePresent = 1
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case naturalWhenTrackpadPresent = 2
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var displayName: String {
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switch self {
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case .disabled:
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return "Disabled"
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case .normalWhenMousePresent:
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return "Normal when mouse present"
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case .naturalWhenTrackpadPresent:
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return "Natural when trackpad present"
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}
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}
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var displayDescription: String {
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switch self {
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case .disabled:
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return "Scroll direction is never changed automatically"
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case .normalWhenMousePresent:
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return "Scroll direction is changed to normal when at least 1 mouse is connected. Optimal for computers with built-in trackpads."
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case .naturalWhenTrackpadPresent:
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return "Scroll direction is changed to natural when at least 1 trackpad is connected. Optimal for computers with rarely-connected trackpads."
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}
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}
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}
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}
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@ -8,8 +8,8 @@
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#ifndef ScrollSwitcher_Bridging_Header_h
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#define ScrollSwitcher_Bridging_Header_h
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#import <CoreFoundation/CoreFoundation.h>
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#import <stdbool.h>
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void setSwipeScrollDirection(BOOL natural);
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extern void setSwipeScrollDirection(bool natural);
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#endif /* ScrollSwitcher_Bridging_Header_h */
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