Class StateRegistry

This removes a state from the registry. If the state has children, they are are also removed from the registry.

Calling this method with no arguments will return a list of all the states that are currently registered. Note: this does not return states that are queued but not yet registered.

Given a state or a name, finds and returns the StateDeclaration from the registry. Note: this does not return states that are queued but not yet registered.

Adds a callback that is invoked when states are registered or deregistered with the StateRegistry.

example

let allStates = registry.get();

// Later, invoke deregisterFn() to remove the listener
let deregisterFn = registry.onStatesChanged((event, states) => {
  switch(event) {
    case: 'registered':
      states.forEach(state => allStates.push(state));
      break;
    case: 'deregistered':
      states.forEach(state => {
        let idx = allStates.indexOf(state);
        if (idx !== -1) allStates.splice(idx, 1);
      });
      break;
  }
});

Registers a [[StateDefinition]] or queues it for registration.

Note: a state will be queued if the state's parent isn't yet registered. It will also be queued if the queue is not yet in StateQueueManager.autoFlush mode.

Gets the root of the state tree. The root state is implicitly created by UI-Router. Note: this returns the internal State representation, not a StateDeclaration