feat: add route hierarchy with dynamic titles (#24550) (CP: 25.2)#24582
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Introduces a new, instance-free mechanism for resolving page titles and logical route hierarchies in Vaadin applications. The main focus is on enabling dynamic page titles and hierarchical navigation aids (like breadcrumbs and menus) without requiring instantiation of navigation target components. This is achieved through new annotations, interfaces, and supporting APIs for stateless resolution of titles and parent routes. * Introduced the `@DynamicPageTitle` annotation, allowing routes to specify a `PageTitleGenerator` for computing their titles without needing to instantiate the route component. This enables dynamic titles for navigation elements like menus and breadcrumbs. * Added the `PageTitleGenerator` interface and `PageTitleContext` record, providing a stateless, parameter-driven way to generate page titles for routes. * Added the `@RouteParent` annotation and supporting APIs, allowing routes to declare their logical parent statically or via a resolver, again without requiring instantiation. * Extended `RouteConfiguration` with methods to resolve a route's logical parent and hierarchy statelessly, supporting the new navigation aids. * Updated `Instantiator` and `DefaultInstantiator` to support application-wide default `PageTitleGenerator` resolution, integrating the new mechanism with the dependency injection system. * Enhanced `MenuRegistry` and related utilities to use the new title and hierarchy resolution APIs, allowing navigation aids to display correct, dynamic titles and hierarchies for all routes. --------- Co-authored-by: totally-not-ai[bot] <290682512+totally-not-ai[bot]@users.noreply.github.com> Co-authored-by: Artur Signell <artur@vaadin.com>
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Jun 11, 2026
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This PR cherry-picks changes from the original PR #24550 to branch 25.2.
Original PR description