Is it possible to detect right-click in SwiftUI?

Question

Original question here: https://stackoverflow.com/q/59280263/3939277

I'm writing a simple Mines app to help me get to know SwiftUI. As such, I want primary click (usually LMB) to "dig" (reveal whether there's a mine there), and secondary click (usually RMB or 2-finger click) to place a flag.

I have the digging working! But I can't figure out how to place a flag, because I can't figure out how to detect a secondary click.

Here's what I'm trying:

BoardSquareView(
    style: self.style(for: square),
    model: square
)
.gesture(TapGesture().modifiers(.control).onEnded(self.handleUserDidAltTap(square)))
.gesture(TapGesture().onEnded(self.handleUserDidTap(square)))

As I implied earlier, the function returned by `handleUserDidTap` is called properly on click, but the one returned by `handleUserDidAltTap` is only called when I hold down the Control key. That makes sense because that's what the code says... but I don't see any API which could make it register secondary clicks, so I don't know what else to do.

I also tried this, but the behavior seemed identical:

BoardSquareView(
    style: self.style(for: square),
    model: square
)
.gesture(TapGesture().modifiers(.control).onEnded(self.handleUserDidAltTap(square)))
.onTapGesture(self.handleUserDidTap(square))

SwiftUI

3.4k

Posted by

BenLeggiero_0

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Answer 1

You asked the question in SO:

https://stackoverflow.com/questions/59280263/how-can-i-detect-a-right-click-in-swiftui

You got an answer and accepted as correct solution.

That said, I did figure out a way to make this work. What you have to do is fall back on the older technology, and embed it into your SwiftUI view.

struct RightClickableSwiftUIView: NSViewRepresentable {
    func updateNSView(_ nsView: RightClickableView, context: NSViewRepresentableContext) {
        print("Update")
    }

    func makeNSView(context: Context) -> RightClickableView {
        RightClickableView()
    }
}

class RightClickableView : NSView {
    override func mouseDown(with theEvent: NSEvent) {
        print("left mouse")
    }

    override func rightMouseDown(with theEvent: NSEvent) {
        print("right mouse")
    }
}

Doesn't the proposed solution work for you ?

Why ask again here ? At least you should have referenced this SO thread.

As right click is not supported in SwiftUI, have you considered using tap and longPress instead of left and right click ?

Posted by

Claude31

That doesn't work for me because I asked about SwiftUI, not AppKit

—
BenLeggiero_0

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Answer 2

This thread is old... but I've posted a related question: how to pass and return a parameter to the NSView (i.e., right click triggers a SwiftUI popover). My passed binding does not update.

https://developer.apple.com/forums/thread/655056

Posted by

wingover

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Answer 3

attach this to your view. works in macos

.contextMenu {
    Button("Remove") {
        print("remove this view")
    }
}

Posted by

lj000

Worked for me! Thanks!

—
fborelli

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Is it possible to detect right-click in SwiftUI?

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