sceneUtils: expose setWindowGrafanaSceneContext

[gtk-grafana]

So scene apps can set global timeSrv to enable copying time range
Potential usage:

 public onActivate() {
      const unsetGlobalScene = setWindowGrafanaSceneContext(this);
      return () => {
        unsetGlobalScene();
      };
}

[gtk-grafana]

I'm interested in finding solutions to automatically add keybindings for all scene apps: ideally every scene app would support copy/paste of time range automatically, or maybe by setting a new prop on SceneTimeRangeState in case apps have several time ranges.

[torkelo]

setWindowGrafanaSceneContext is best called on-scene activation (already called automatically by EmbeddedScene) rather than in a command handler

[torkelo]

I'm interested in finding solutions to automatically add keybindings for all scene apps: ideally every scene app would support copy/paste of time range automatically, or maybe by setting a new prop on SceneTimeRangeState in case apps have several time ranges.

yes, I agree. there are other keybindings to zoom out, move left / right as well

question is how best to opt-in or opt-out of them (and how to handle cases when there are multiple time ranges)

[gtk-grafana]

Thanks @torkelo, I had missed that this was already called in the EmbeddedScene, but it appears that doesn't always work when the time range is set on a child scene of the Embedded Scene. While we might be able to move our $timeRange up and get this working as expected, is this still something we'd want exposed to scene apps for cases where the time range that should get copied is not set when the Embedded scene is activated?