[FEATURE] Toggle Hotswap force page reload from UI

[mcollovati]

Is your feature request related to a problem?

Hotswapper page refresh sometimes may produce unwanted effects, like dialogs being closed and not reopened, etc. For this reason, users requested a feature to force Hotswapper to make a full-page reload instead of a refresh when a class changes.
The feature has been implemented in vaadin/flow#21157, and it allows forcing the full reload by setting the vaadin.hotswap.forcePageReload system property.
However, a server restart is required when the user wants to change the behavior.

Describe the solution you'd like

Given that Hotswapper added the forcePageReload and isForcedPageReload methods to programmatically activate and deactivate the feature, it would be nice to have a toggle button in Copilot user interface to adjust the behavior at runtime.

Describe alternatives you've considered

Implement the feature in the application, like the vaadin/flow#21212 author did.

Additional context

isForcedPageReload does not consider the system property; it gets true only if the feature has been activated programmatically.

[sveinnetnordic]

Ref: vaadin/flow#21215

[abdullahtellioglu]

Is this feature available for HotswapAgent and JRebel or HotswapAgent only? @mcollovati

[mcollovati]

The feature is in Flow Hotswapper. For sure, Vaadin HotswapAgent plugin uses Hotswapper when class changes happens.
I don't know much about JRebel, but it should do the same.
Perhaps @mshabarov can provide more information.

[MarcinVaadin]

Idea: Feature flags panel might be renamed to Settings and we can put more settings there, like those Flow/Vaadin properties.

[mshabarov]

The feature is in Flow Hotswapper. For sure, Vaadin HotswapAgent plugin uses Hotswapper when class changes happens. I don't know much about JRebel, but it should do the same. Perhaps @mshabarov can provide more information.

JRebel also uses Hotswapper with no modifications, should work as well.