A modern programming language that makes developers happier.

kotlinlang

I can not get the *pinch to zoom gesture* working using my Macbook *touchpad*. I tried <https://github.com/JetBrains/compose-multiplatform/tree/48b64fdece44931b6e7c07cbf3773d6977aa2fd3/examples/imageviewer|imageviewer> example that uses `detectTransformGestures`
Is it not yet supported?

Compose Desktop use Swing to create windows and get input, and Swing doesn't support multitouch gestures, so I wouldn't expect it to work in Compose Desktop either

I tested it on both desktop and web/wasm.

That’s true. I just tried it with my macMini and attached trackpad. Pinch gestures don’t work with Compose but work nicely in a JavaFX application. That’s a pity. Maybe Compose could borrow some code from JavaFX.

I found 2 open issues:
• <https://youtrack.jetbrains.com/issue/CMP-1610/Desktop.-Native-handling-of-touchpad-events-on-touch-pads-and-track-pads|Desktop. Native handling of touchpad events on touch pads and track pads>
• <https://youtrack.jetbrains.com/issue/CMP-1953/Support-pinch-to-zoom-gesture-on-notebook-touchpads-like-MacBook-trackpad|Support pinch-to-zoom gesture on notebook touchpads (like MacBook trackpad)>

I don't think there's any way to just "borrow" code from JavaFX, the actual implementation is in the native integration

maybe Compose could learn to use JavaFX for input

as for wasm/web, I don't know… I haven't looked, maybe CMP isn't using the pointer events API (or its behavior is inconsistent between browsers)