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ecee85fc6b
This fixes calls to `ui.response().interact(Sense::click())` being flakey. Since egui checks widget interactions at the beginning of the frame, based on the responses from last frame, we need to ensure that we always call `create_widget` on `interact` calls, otherwise there can be a feedback loop where the `Sense` egui acts on flips back and forth between frames. Without the fix in `interact`, both the asserts in the new test fail. Here is a video where I experienced the bug, showing the sense switching every frame. Every other click would fail to be detected. https://github.com/user-attachments/assets/6be7ca0e-b50f-4d30-bf87-bbb80c319f3b Also note, usually it's better to use `UiBuilder::sense()` to give a Ui some sense, but sometimes you don't have the flexibility, e.g. in a `Ui` callback from some code external to your project.
Test apps
Some application to tests various parts of egui and eframe.
At some point it would be nice to have automatic screenshot regression tests for these.