Mouse events are ignored when holding another button down in the Play Mode

Unity: UI Toolkit Framework

As Designed

2022.3.X

The PointerMoveEvent will handle the other mouse button down as per the W3C standard. In Unity 6, this has been improved to also trigger the MouseDownEvent and this gives users a better experience handling the described scenario.

Reproduction steps:
1. Open the attached “bug.zip” project
2. Open the “Assets/Scenes/SampleScene.unity“ Scene
3. Enter the Play Mode
4. Click and hold the "Click Me" button in the Game View
5. Observe the Console window and see the log message
6. While holding the button, press another mouse button
7. Observe the Console window

Expected result: “mouse down” message is printed
Actual result: “mouse down” message is not printed

Reproducible with: 2022.3.57f1, 2023.2.0a15
Not reproducible with: 6000.0.36f1, 6000.1.0b3, 6000.2.0a2
Fixed in: 2023.2.0a16

Reproducible on: Windows 11
Not reproducible on: No other environment tested

Mouse events are ignored when holding another button down in the Play Mode

Unity: UI Toolkit Framework

As Designed

Prioritise and Follow this issue

Have a workaround or additional info about this issue?

Mouse events are ignored when holding another button down in the Play Mode

Unity: UI Toolkit Framework

Statuses

As Designed

Resolution Notes

2022.3.XAs DesignedThe PointerMoveEvent will handle the other mouse button down as per the W3C standard. In Unity 6, this has been improved to also trigger the MouseDownEvent and this gives users a better experience handling the described scenario.

Description

Prioritise and Follow this issue

Have a workaround or additional info about this issue?