`combinedClickable` and `mouseClickable` are mutua...

# compose-desktop

[David W]

combinedClickable and mouseClickable are mutually exclusive, but have non-overlapping functionality.
Is there a built-in way to handle both double-clicks and right-clicks on an item?

[David W]

I have a grid row (think Excel) where I want to show a context menu on right-click, but toggle some other thing if the user double-clicks (using the primary mouse button).

[David W]

combinedClickable lets me add a double-click handler, and mouseClickable lets me add a right-click handler, but I cannot use both at once.
I'd like to avoid home-rolling a double-click detector, if possible...

[Kirill Grouchnikov]

One thing to remember - right click is not the same as show-context-menu. On macOS for example, context menu should also be shown on Ctrl+left click. There's also the difference between when the context menu should be shown (mouse press or mouse release) on Windows vs macOS

[David W]

Good points! I hadn't thought about macOS because my support for it will be dubious (due to doing a lot of file io and not having a mac to test with).

[David W]

Is there a standard Compose way of detecting when a context menu should be shown, then, since the keypresses are standardized?

[David W]

and...I'm still left without an answer. mouseClickable doesn't have a double-click handler, which feels like an oversight or something unfinished.

[David W]

I tried digging into it, but
PointerInputScope.detectTapWithContext is internal, whereas PointerInputScope.detectTapGestures is public

[David W]

was hoping to be able to combine the two into a more flexible click handler

[Kebbin]

I created a function like this, that can do whatever you like.

Modifier
    .pointerInput(Unit) {
        forEachGesture {
            awaitPointerEventScope {
                awaitFirstDown()
                do {
                    val event = awaitPointerEvent()
                    // detect mouse buttons and keyboard modifiers here:
                    // event.buttons.xxxx
                    // event.keyboard.Modifiers.xxxx
                    // event.***  :-D
                } while (event.changes.any { it.pressed })
            }
        }
    }

[David W]

Thanks, I'll copy/paste from PointerInputScope.detectTapGestures to add double-click detection and hopefully this will be added to the easy-to-use APIs in the future.