App stops reacting to shortcuts sometimes

[lwouis]

During normal usage, sometimes the app will stop responding to global shortcuts.

I recorded an instance of this where I saw these logs:

"event" 11
"event" 12
"meta down"
"unexpected 1" [2807: 1]
"unexpected 2" [<AXUIElement 0x7ff860f95c40> {pid=2807}]
"event" 12
"meta up"
"event" 12
"event" 12
"event" 11
"event" 12
"meta down"
"unexpected 1" [2807: 1, 13366: 0]
"unexpected 2" [<AXUIElement 0x7ff860f8e3b0> {pid=2807}]
"event" 10
"event" 4294967294

These logs come from this update I made locally in the source code:

func computeOpenWindows() {
        openWindows.removeAll()
        // we rely on the fact that CG and AX APIs arrays follow the same order to match objects from both APIs
        var pidAndCurrentIndex: [pid_t: Int] = [:]
        for cgWindow in cgWindows() {
            let cgId = cgWindow[kCGWindowNumber] as! CGWindowID
            let cgTitle = String(cgWindow[kCGWindowName] as! NSString)
            let cgOwnerPid = cgWindow[kCGWindowOwnerPID] as! pid_t
            let i = pidAndCurrentIndex.index(forKey: cgOwnerPid)
            pidAndCurrentIndex[cgOwnerPid] = (i == nil ? 0 : pidAndCurrentIndex[i!].value + 1)
            let axWindow = axWindows(cgOwnerPid)
            if axWindow.count > pidAndCurrentIndex[cgOwnerPid]! {
                openWindows.append(OpenWindow(target: axWindow[pidAndCurrentIndex[cgOwnerPid]!], ownerPid: cgOwnerPid, cgId: cgId, cgTitle: cgTitle))
            } else {
                debugPrint("unexpected 1", pidAndCurrentIndex)
                debugPrint("unexpected 2", axWindow)
            }
        }
    }

Note that the app isn't crashed. It is ignoring global shortcuts and stdout isn't producing new values

[lwouis]

Another case happened:

"event" 10
"event is in somehow"
"event" 11
"event is in somehow"
"event" 12
"event is in somehow"
"event" 12
"event is in somehow"
"event" 4294967294

This is the logging code:

func keyboardHandler(_ cgEvent: CGEvent, _ delegate: Application) -> Unmanaged<CGEvent>? {
    debugPrint("event", cgEvent.type.rawValue)
    if cgEvent.type == .keyDown || cgEvent.type == .keyUp || cgEvent.type == .flagsChanged {
        debugPrint("event is in somehow")
        if let event = NSEvent.init(cgEvent: cgEvent) {

[lwouis]

It seems like the event watching loop breaks after receiving these anormal events

[lwouis]

Note that event.type.rawValue == 4294967294 is the .tapDisabledByTimeout