/**
 * @coreapi
 * @module transition
 */ /** for typedoc */
import { StateDeclaration } from '../state/interface';
import { Predicate } from '../common/common';
import { Transition } from './transition';
import { StateObject } from '../state/stateObject';
import { PathNode } from '../path/pathNode';
import { TargetState } from '../state/targetState';
import { RegisteredHook } from './hookRegistry';
/**
 * The TransitionOptions object can be used to change the behavior of a transition.
 *
 * It is passed as the third argument to [[StateService.go]], [[StateService.transitionTo]].
 * It can also be used with a `uiSref`.
 */
export interface TransitionOptions {
    /**
     * This option changes how the Transition interacts with the browser's location bar (URL).
     *
     * - If `true`, it will update the url in the location bar.
     * - If `false`, it will not update the url in the location bar.
     * - If it is the string `"replace"`, it will update the url and also replace the last history record.
     *
     * @default `true`
     */
    location?: boolean | string;
    /**
     * When transitioning to relative path (e.g '`^`'), this option defines which state to be relative from.
     * @default `$state.current`
     */
    relative?: string | StateDeclaration | StateObject;
    /**
     * This option sets whether or not the transition's parameter values should be inherited from
     * the current parameter values.
     *
     * - If `true`, it will inherit parameter values from the current parameter values.
     * - If `false`, only the parameters which are provided to `transitionTo` will be used.
     *
     * @default `false`
     */
    inherit?: boolean;
    /**
     * @deprecated
     */
    notify?: boolean;
    /**
     * This option may be used to force states which are currently active to reload.
     *
     * During a normal transition, a state is "retained" if:
     * - It was previously active
     * - The state's parameter values have not changed
     * - All the parent states' parameter values have not changed
     *
     * Forcing a reload of a state will cause it to be exited and entered, which will:
     * - Refetch that state's resolve data
     * - Exit the state (onExit hook)
     * - Re-enter the state (onEnter hook)
     * - Re-render the views (controllers and templates)
     *
     * - When `true`, the destination state (and all parent states) will be reloaded.
     * - When it is a string and is the name of a state, or when it is a State object,
     *   that state and any children states will be reloaded.
     *
     * @default `false`
     */
    reload?: boolean | string | StateDeclaration | StateObject;
    /**
     * You can define your own Transition Options inside this property and use them, e.g., from a Transition Hook
     */
    custom?: any;
    /** @internalapi */
    reloadState?: StateObject;
    /** @internalapi
     * If this transition is a redirect, this property should be the original Transition (which was redirected to this one)
     */
    redirectedFrom?: Transition;
    /** @internalapi */
    current?: () => Transition;
    /** @internalapi */
    source?: 'sref' | 'url' | 'redirect' | 'otherwise' | 'unknown';
}
/** @internalapi */
export interface TransitionHookOptions {
    current?: () => Transition;
    transition?: Transition;
    hookType?: string;
    target?: any;
    traceData?: any;
    bind?: any;
    stateHook?: boolean;
}
/**
 * TreeChanges encapsulates the various Paths that are involved in a Transition.
 *
 * Get a TreeChanges object using [[Transition.treeChanges]]
 *
 * A UI-Router Transition is from one Path in a State Tree to another Path.  For a given Transition,
 * this object stores the "to" and "from" paths, as well as subsets of those: the "retained",
 * "exiting" and "entering" paths.
 *
 * Each path in TreeChanges is an array of [[PathNode]] objects. Each PathNode in the array corresponds to a portion
 * of a nested state.
 *
 * For example, if you had a nested state named `foo.bar.baz`, it would have three
 * portions, `foo, bar, baz`.  If you transitioned **to** `foo.bar.baz` and inspected the [[TreeChanges.to]]
 * Path, you would find a node in the array for each portion: `foo`, `bar`, and `baz`.
 *
 * ---
 *
 * @todo show visual state tree
 */
export interface TreeChanges {
    /** @nodoc */
    [key: string]: PathNode[];
    /** The path of nodes in the state tree that the transition is coming *from* */
    from: PathNode[];
    /** The path of nodes in the state tree that the transition is going *to* */
    to: PathNode[];
    /**
     * The path of active nodes that the transition is retaining.
     *
     * These nodes are neither exited, nor entered.
     * Before and after the transition is successful, these nodes are active.
     */
    retained: PathNode[];
    /**
     * The path of active nodes that the transition is retaining with updated "to params" applied.
     *
     * These nodes are neither exited, nor entered.
     * Before and after the transition is successful, these nodes are active.
     *
     * This is a shallow copy of [[retained]], but with new (dynamic) parameter values from [[to]] applied.
     */
    retainedWithToParams: PathNode[];
    /**
     * The path of previously active nodes that the transition is exiting.
     *
     * After the Transition is successful, these nodes are no longer active.
     *
     * Note that a state that is being reloaded (due to parameter values changing, or `reload: true`) may be in both the
     * `exiting` and `entering` paths.
     */
    exiting: PathNode[];
    /**
     * The path of nodes that the transition is entering.
     *
     * After the Transition is successful, these nodes will be active.
     * Because they are entering, they have their resolves fetched, `onEnter` hooks run, and their views
     * (component(s) or controller(s)+template(s)) refreshed.
     *
     * Note that a state that is reloaded (due to parameter values changing, or `reload: true`) may be in both the
     * `exiting` and `entering` paths.
     */
    entering: PathNode[];
}
export declare type IHookRegistration = (matchCriteria: HookMatchCriteria, callback: HookFn, options?: HookRegOptions) => Function;
/**
 * The signature for Transition Hooks.
 *
 * Transition hooks are callback functions that hook into the lifecycle of transitions.
 * As a transition runs, it reaches certain lifecycle events.
 * As each event occurs, the hooks which are registered for the event are called (in priority order).
 *
 * A transition hook may alter a Transition by returning a [[HookResult]].
 *
 * #### See:
 *
 * - [[IHookRegistry.onBefore]]
 * - [[IHookRegistry.onStart]]
 * - [[IHookRegistry.onFinish]]
 * - [[IHookRegistry.onSuccess]]
 * - [[IHookRegistry.onError]]
 *
 * @param transition the current [[Transition]]
 * @param injector (for ng1 or ng2 only) the injector service
 *
 * @returns a [[HookResult]] which may alter the transition
 *
 */
export interface TransitionHookFn {
    (transition: Transition): HookResult;
}
/**
 * The signature for Transition State Hooks.
 *
 * A function which hooks into a lifecycle event for a specific state.
 *
 * Transition State Hooks are callback functions that hook into the lifecycle events of specific states during a transition.
 * As a transition runs, it may exit some states, retain (keep) states, and enter states.
 * As each lifecycle event occurs, the hooks which are registered for the event and that state are called (in priority order).
 *
 * #### See:
 *
 * - [[IHookRegistry.onExit]]
 * - [[IHookRegistry.onRetain]]
 * - [[IHookRegistry.onEnter]]
 *
 * @param transition the current [[Transition]]
 * @param state the [[StateObject]] that the hook is bound to
 * @param injector (for ng1 or ng2 only) the injector service
 *
 * @returns a [[HookResult]] which may alter the transition
 */
export interface TransitionStateHookFn {
    (transition: Transition, state: StateDeclaration): HookResult;
}
/**
 * The signature for Transition onCreate Hooks.
 *
 * Transition onCreate Hooks are callbacks that allow customization or preprocessing of
 * a Transition before it is returned from [[TransitionService.create]]
 *
 * @param transition the [[Transition]] that was just created
 * @return a [[Transition]] which will then be returned from [[TransitionService.create]]
 */
export interface TransitionCreateHookFn {
    (transition: Transition): void;
}
export declare type HookFn = TransitionHookFn | TransitionStateHookFn | TransitionCreateHookFn;
/**
 * The return value of a [[TransitionHookFn]] or [[TransitionStateHookFn]]
 *
 * When returned from a [[TransitionHookFn]] or [[TransitionStateHookFn]], these values alter the running [[Transition]]:
 *
 * - `false`: the transition will be cancelled.
 * - [[TargetState]]: the transition will be redirected to the new target state (see: [[StateService.target]])
 * - `Promise`: the transition will wait for the promise to resolve or reject
 *    - If the promise is rejected (or resolves to `false`), the transition will be cancelled
 *    - If the promise resolves to a [[TargetState]], the transition will be redirected
 *    - If the promise resolves to anything else, the transition will resume
 * - Anything else: the transition will resume
 */
export declare type HookResult = boolean | TargetState | void | Promise<boolean | TargetState | void>;
/**
 * These options may be provided when registering a Transition Hook (such as `onStart`)
 */
export interface HookRegOptions {
    /**
     * Sets the priority of the registered hook
     *
     * Hooks of the same type (onBefore, onStart, etc) are invoked in priority order.  A hook with a higher priority
     * is invoked before a hook with a lower priority.
     *
     * The default hook priority is 0
     */
    priority?: number;
    /**
     * Specifies what `this` is bound to during hook invocation.
     */
    bind?: any;
    /**
     * Limits the number of times that the hook will be invoked.
     * Once the hook has been invoked this many times, it is automatically deregistered.
     */
    invokeLimit?: number;
}
/**
 * This interface specifies the api for registering Transition Hooks.  Both the
 * [[TransitionService]] and also the [[Transition]] object itself implement this interface.
 * Note: the Transition object only allows hooks to be registered before the Transition is started.
 */
export interface IHookRegistry {
    /** @hidden place to store the hooks */
    _registeredHooks: {
        [key: string]: RegisteredHook[];
    };
    /**
     * Registers a [[TransitionHookFn]], called *before a transition starts*.
     *
     * Registers a transition lifecycle hook, which is invoked before a transition even begins.
     * This hook can be useful to implement logic which prevents a transition from even starting, such
     * as authentication, redirection
     *
     * See [[TransitionHookFn]] for the signature of the function.
     *
     * The [[HookMatchCriteria]] is used to determine which Transitions the hook should be invoked for.
     * To match all Transitions, use an empty criteria object `{}`.
     *
     * ### Lifecycle
     *
     * `onBefore` hooks are invoked *before a Transition starts*.
     * No resolves have been fetched yet.
     * Each `onBefore` hook is invoked synchronously, in the same call stack as [[StateService.transitionTo]].
     * The registered `onBefore` hooks are invoked in priority order.
     *
     * Note: during the `onBefore` phase, additional hooks can be added to the specific [[Transition]] instance.
     * These "on-the-fly" hooks only affect the currently running transition..
     *
     * ### Return value
     *
     * The hook's return value can be used to pause, cancel, or redirect the current Transition.
     * See [[HookResult]] for more information.
     *
     * If any hook modifies the transition *synchronously* (by throwing, returning `false`, or returning
     * a [[TargetState]]), the remainder of the hooks are skipped.
     * If a hook returns a promise, the remainder of the `onBefore` hooks are still invoked synchronously.
     * All promises are resolved, and processed asynchronously before the `onStart` phase of the Transition.
     *
     * ### Examples
     *
     * #### Default Substate
     *
     * This example redirects any transition from 'home' to 'home.dashboard'.  This is commonly referred to as a
     * "default substate".
     *
     * @example
     * ```js
     * // ng2
     * transitionService.onBefore({ to: 'home' }, (trans: Transition) =>
     *     trans.router.stateService.target("home.dashboard"));
     * ```
     *
     * #### Data Driven Default Substate
     *
     * This example provides data-driven default substate functionality. It matches on a transition to any state
     * which has `defaultSubstate: "some.sub.state"` defined.  See: [[Transition.to]] which returns the "to state"
     * definition.
     *
     * @example
     * ```js
     * // ng1
     * // state declaration
     * {
     *   name: 'home',
     *   template: '<div ui-view/>',
     *   defaultSubstate: 'home.dashboard'
     * }
     *
     * var criteria = {
     *   to: function(state) {
     *     return state.defaultSubstate != null;
     *   }
     * }
     *
     * $transitions.onBefore(criteria, function(trans: Transition) {
     *   var substate = trans.to().defaultSubstate;
     *   return trans.router.stateService.target(substate);
     * });
     * ```
     *
     *
     * #### Require authentication
     *
     * This example cancels a transition to a state which requires authentication, if the user is not currently authenticated.
     *
     * This example assumes a state tree where all states which require authentication are children of a parent `'requireauth'` state.
     * This example assumes `MyAuthService` synchronously returns a boolean from `isAuthenticated()`.
     *
     * #### Example:
     * ```js
     * // ng1
     * $transitions.onBefore( { to: 'requireauth.**' }, function(trans) {
     *   var myAuthService = trans.injector().get('MyAuthService');
     *   // If isAuthenticated returns false, the transition is cancelled.
     *   return myAuthService.isAuthenticated();
     * });
     * ```
     *
     * @param matchCriteria defines which Transitions the Hook should be invoked for.
     * @param callback the hook function which will be invoked.
     * @returns a function which deregisters the hook.
     */
    onBefore(matchCriteria: HookMatchCriteria, callback: TransitionHookFn, options?: HookRegOptions): Function;
    /**
     * Registers a [[TransitionHookFn]], called when a transition starts.
     *
     * Registers a transition lifecycle hook, which is invoked as a transition starts running.
     * This hook can be useful to perform some asynchronous action before completing a transition.
     *
     * See [[TransitionHookFn]] for the signature of the function.
     *
     * The [[HookMatchCriteria]] is used to determine which Transitions the hook should be invoked for.
     * To match all Transitions, use an empty criteria object `{}`.
     *
     * ### Lifecycle
     *
     * `onStart` hooks are invoked asynchronously when the Transition starts running.
     * This happens after the `onBefore` phase is complete.
     * At this point, the Transition has not yet exited nor entered any states.
     * The registered `onStart` hooks are invoked in priority order.
     *
     * Note: A built-in `onStart` hook with high priority is used to fetch any eager resolve data.
     *
     * ### Return value
     *
     * The hook's return value can be used to pause, cancel, or redirect the current Transition.
     * See [[HookResult]] for more information.
     *
     * ### Example
     *
     * #### Login during transition
     *
     * This example intercepts any transition to a state which requires authentication, when the user is
     * not currently authenticated.  It allows the user to authenticate asynchronously, then resumes the
     * transition.  If the user did not authenticate successfully, it redirects to the "guest" state, which
     * does not require authentication.
     *
     * This example assumes:
     * - a state tree where all states which require authentication are children of a parent `'auth'` state.
     * - `MyAuthService.isAuthenticated()` synchronously returns a boolean.
     * - `MyAuthService.authenticate()` presents a login dialog, and returns a promise which is resolved
     *   or rejected, whether or not the login attempt was successful.
     *
     * #### Example:
     * ```js
     * // ng1
     * $transitions.onStart( { to: 'auth.**' }, function(trans) {
     *   var $state = trans.router.stateService;
     *   var MyAuthService = trans.injector().get('MyAuthService');
     *
     *   // If the user is not authenticated
     *   if (!MyAuthService.isAuthenticated()) {
     *
     *     // Then return a promise for a successful login.
     *     // The transition will wait for this promise to settle
     *
     *     return MyAuthService.authenticate().catch(function() {
     *
     *       // If the authenticate() method failed for whatever reason,
     *       // redirect to a 'guest' state which doesn't require auth.
     *       return $state.target("guest");
     *     });
     *   }
     * });
     * ```
     *
     * @param matchCriteria defines which Transitions the Hook should be invoked for.
     * @param callback the hook function which will be injected and invoked.
     * @returns a function which deregisters the hook.
     */
    onStart(matchCriteria: HookMatchCriteria, callback: TransitionHookFn, options?: HookRegOptions): Function;
    /**
     * Registers a [[TransitionStateHookFn]], called when a specific state is entered.
     *
     * Registers a lifecycle hook, which is invoked (during a transition) when a specific state is being entered.
     *
     * Since this hook is run only when the specific state is being *entered*, it can be useful for
     * performing tasks when entering a submodule/feature area such as initializing a stateful service,
     * or for guarding access to a submodule/feature area.
     *
     * See [[TransitionStateHookFn]] for the signature of the function.
     *
     * The [[HookMatchCriteria]] is used to determine which Transitions the hook should be invoked for.
     * `onEnter` hooks generally specify `{ entering: 'somestate' }`.
     * To match all Transitions, use an empty criteria object `{}`.
     *
     * ### Lifecycle
     *
     * `onEnter` hooks are invoked when the Transition is entering a state.
     * States are entered after the `onRetain` phase is complete.
     * If more than one state is being entered, the parent state is entered first.
     * The registered `onEnter` hooks for a state are invoked in priority order.
     *
     * Note: A built-in `onEnter` hook with high priority is used to fetch lazy resolve data for states being entered.
     *
     * ### Return value
     *
     * The hook's return value can be used to pause, cancel, or redirect the current Transition.
     * See [[HookResult]] for more information.
     *
     * ### Inside a state declaration
     *
     * Instead of registering `onEnter` hooks using the [[TransitionService]], you may define an `onEnter` hook
     * directly on a state declaration (see: [[StateDeclaration.onEnter]]).
     *
     *
     * ### Examples
     *
     * #### Audit Log
     *
     * This example uses a service to log that a user has entered the admin section of an app.
     * This assumes that there are substates of the "admin" state, such as "admin.users", "admin.pages", etc.
     * @example
     * ```
     *
     * $transitions.onEnter({ entering: 'admin' }, function(transition, state) {
     *   var AuditService = trans.injector().get('AuditService');
     *   AuditService.log("Entered " + state.name + " module while transitioning to " + transition.to().name);
     * }
     * ```
     *
     * #### Audit Log (inside a state declaration)
     *
     * The `onEnter` inside this state declaration is syntactic sugar for the previous Audit Log example.
     * ```
     * {
     *   name: 'admin',
     *   component: 'admin',
     *   onEnter: function($transition$, $state$) {
     *     var AuditService = $transition$.injector().get('AuditService');
     *     AuditService.log("Entered " + state.name + " module while transitioning to " + transition.to().name);
     *   }
     * }
     * ```
     *
     * Note: A state declaration's `onEnter` function is injected for Angular 1 only.
     *
     * @param matchCriteria defines which Transitions the Hook should be invoked for.
     * @param callback the hook function which will be injected and invoked.
     * @returns a function which deregisters the hook.
     */
    onEnter(matchCriteria: HookMatchCriteria, callback: TransitionStateHookFn, options?: HookRegOptions): Function;
    /**
     * Registers a [[TransitionStateHookFn]], called when a specific state is retained/kept.
     *
     * Registers a lifecycle hook, which is invoked (during a transition) for
     * a specific state that was previously active will remain active (is not being entered nor exited).
     *
     * This hook is invoked when a state is "retained" or "kept".
     * It means the transition is coming *from* a substate of the retained state *to* a substate of the retained state.
     * This hook can be used to perform actions when the user moves from one substate to another, such as between steps in a wizard.
     *
     * The [[HookMatchCriteria]] is used to determine which Transitions the hook should be invoked for.
     * `onRetain` hooks generally specify `{ retained: 'somestate' }`.
     * To match all Transitions, use an empty criteria object `{}`.
     *
     * ### Lifecycle
     *
     * `onRetain` hooks are invoked after any `onExit` hooks have been fired.
     * If more than one state is retained, the child states' `onRetain` hooks are invoked first.
     * The registered `onRetain` hooks for a state are invoked in priority order.
     *
     * ### Return value
     *
     * The hook's return value can be used to pause, cancel, or redirect the current Transition.
     * See [[HookResult]] for more information.
     *
     * ### Inside a state declaration
     *
     * Instead of registering `onRetain` hooks using the [[TransitionService]], you may define an `onRetain` hook
     * directly on a state declaration (see: [[StateDeclaration.onRetain]]).
     *
     * Note: A state declaration's `onRetain` function is injected for Angular 1 only.
     *
     * @param matchCriteria defines which Transitions the Hook should be invoked for.
     * @param callback the hook function which will be injected and invoked.
     * @returns a function which deregisters the hook.
     */
    onRetain(matchCriteria: HookMatchCriteria, callback: TransitionStateHookFn, options?: HookRegOptions): Function;
    /**
     * Registers a [[TransitionStateHookFn]], called when a specific state is exited.
     *
     * Registers a lifecycle hook, which is invoked (during a transition) when a specific state is being exited.
     *
     * Since this hook is run only when the specific state is being *exited*, it can be useful for
     * performing tasks when leaving a submodule/feature area such as cleaning up a stateful service,
     * or for preventing the user from leaving a state or submodule until some criteria is satisfied.
     *
     * See [[TransitionStateHookFn]] for the signature of the function.
     *
     * The [[HookMatchCriteria]] is used to determine which Transitions the hook should be invoked for.
     * `onExit` hooks generally specify `{ exiting: 'somestate' }`.
     * To match all Transitions, use an empty criteria object `{}`.
     *
     * ### Lifecycle
     *
     * `onExit` hooks are invoked when the Transition is exiting a state.
     * States are exited after any `onStart` phase is complete.
     * If more than one state is being exited, the child states are exited first.
     * The registered `onExit` hooks for a state are invoked in priority order.
     *
     * ### Return value
     *
     * The hook's return value can be used to pause, cancel, or redirect the current Transition.
     * See [[HookResult]] for more information.
     *
     * ### Inside a state declaration
     *
     * Instead of registering `onExit` hooks using the [[TransitionService]], you may define an `onExit` hook
     * directly on a state declaration (see: [[StateDeclaration.onExit]]).
     *
     * Note: A state declaration's `onExit` function is injected for Angular 1 only.
     *
     * @param matchCriteria defines which Transitions the Hook should be invoked for.
     * @param callback the hook function which will be injected and invoked.
     * @returns a function which deregisters the hook.
     */
    onExit(matchCriteria: HookMatchCriteria, callback: TransitionStateHookFn, options?: HookRegOptions): Function;
    /**
     * Registers a [[TransitionHookFn]], called *just before a transition finishes*.
     *
     * Registers a transition lifecycle hook, which is invoked just before a transition finishes.
     * This hook is a last chance to cancel or redirect a transition.
     *
     * See [[TransitionHookFn]] for the signature of the function.
     *
     * The [[HookMatchCriteria]] is used to determine which Transitions the hook should be invoked for.
     * To match all Transitions, use an empty criteria object `{}`.
     *
     * ### Lifecycle
     *
     * `onFinish` hooks are invoked after the `onEnter` phase is complete.
     * These hooks are invoked just before the transition is "committed".
     * Each hook is invoked in priority order.
     *
     * ### Return value
     *
     * The hook's return value can be used to pause, cancel, or redirect the current Transition.
     * See [[HookResult]] for more information.
     *
     * @param matchCriteria defines which Transitions the Hook should be invoked for.
     * @param callback the hook function which will be injected and invoked.
     * @returns a function which deregisters the hook.
     */
    onFinish(matchCriteria: HookMatchCriteria, callback: TransitionHookFn, options?: HookRegOptions): Function;
    /**
     * Registers a [[TransitionHookFn]], called after a successful transition completed.
     *
     * Registers a transition lifecycle hook, which is invoked after a transition successfully completes.
     *
     * See [[TransitionHookFn]] for the signature of the function.
     *
     * The [[HookMatchCriteria]] is used to determine which Transitions the hook should be invoked for.
     * To match all Transitions, use an empty criteria object `{}`.
     *
     * ### Lifecycle
     *
     * `onSuccess` hooks are chained off the Transition's promise (see [[Transition.promise]]).
     * If the Transition is successful and its promise is resolved, then the `onSuccess` hooks are invoked.
     * Since these hooks are run after the transition is over, their return value is ignored.
     * The `onSuccess` hooks are invoked in priority order.
     *
     * ### Return value
     *
     * Since the Transition is already completed, the hook's return value is ignored
     *
     * @param matchCriteria defines which Transitions the Hook should be invoked for.
     * @param callback the hook function which will be injected and invoked.
     * @returns a function which deregisters the hook.
     */
    onSuccess(matchCriteria: HookMatchCriteria, callback: TransitionHookFn, options?: HookRegOptions): Function;
    /**
     * Registers a [[TransitionHookFn]], called after a transition has errored.
     *
     * Registers a transition lifecycle hook, which is invoked after a transition has been rejected for any reason.
     *
     * See [[TransitionHookFn]] for the signature of the function.
     *
     * The [[HookMatchCriteria]] is used to determine which Transitions the hook should be invoked for.
     * To match all Transitions, use an empty criteria object `{}`.
     *
     * ### Lifecycle
     *
     * The `onError` hooks are chained off the Transition's promise (see [[Transition.promise]]).
     * If a Transition fails, its promise is rejected and the `onError` hooks are invoked.
     * The `onError` hooks are invoked in priority order.
     *
     * Since these hooks are run after the transition is over, their return value is ignored.
     *
     * A transition "errors" if it was started, but failed to complete (for any reason).
     * A *non-exhaustive list* of reasons a transition can error:
     *
     * - A transition was cancelled because a new transition started while it was still running (`Transition superseded`)
     * - A transition was cancelled by a Transition Hook returning false
     * - A transition was redirected by a Transition Hook returning a [[TargetState]]
     * - A Transition Hook or resolve function threw an error
     * - A Transition Hook returned a rejected promise
     * - A resolve function returned a rejected promise
     *
     * To check the failure reason, inspect the return value of [[Transition.error]].
     *
     * Note: `onError` should be used for targeted error handling, or error recovery.
     * For simple catch-all error reporting, use [[StateService.defaultErrorHandler]].
     *
     * ### Return value
     *
     * Since the Transition is already completed, the hook's return value is ignored
     *
     * @param matchCriteria defines which Transitions the Hook should be invoked for.
     * @param callback the hook function which will be injected and invoked.
     * @returns a function which deregisters the hook.
     */
    onError(matchCriteria: HookMatchCriteria, callback: TransitionHookFn, options?: HookRegOptions): Function;
    /**
     * Returns all the registered hooks of a given `hookName` type
     *
     * #### Example:
     * ```
     * $transitions.getHooks("onEnter")
     * ```
     */
    getHooks(hookName: string): RegisteredHook[];
}
/** A predicate type which tests if a [[StateObject]] passes some test. Returns a boolean. */
export declare type IStateMatch = Predicate<StateObject>;
/**
 * This object is used to configure whether or not a Transition Hook is invoked for a particular transition,
 * based on the Transition's "to state" and "from state".
 *
 * Each property (`to`, `from`, `exiting`, `retained`, and `entering`) can be a state [[Glob]] string,
 * a boolean, or a function that takes a state and returns a boolean (see [[HookMatchCriterion]])
 *
 * All properties are optional.  If any property is omitted, it is replaced with the value `true`, and always matches.
 * To match any transition, use an empty criteria object `{}`.
 *
 * #### Example:
 * ```js
 * // This matches a transition coming from the `parent` state and going to the `parent.child` state.
 * var match = {
 *   to: 'parent',
 *   from: 'parent.child'
 * }
 * ```
 *
 * #### Example:
 * ```js
 * // This matches a transition coming from any substate of `parent` and going directly to the `parent` state.
 * var match = {
 *   to: 'parent',
 *   from: 'parent.**'
 * }
 * ```
 *
 * #### Example:
 * ```js
 * // This matches a transition coming from any state and going to any substate of `mymodule`
 * var match = {
 *   to: 'mymodule.**'
 * }
 * ```
 *
 * #### Example:
 * ```js
 * // This matches a transition coming from any state and going to any state that has `data.authRequired`
 * // set to a truthy value.
 * var match = {
 *   to: function(state) {
 *     return state.data != null && state.data.authRequired === true;
 *   }
 * }
 * ```
 *
 * #### Example:
 * ```js
 * // This matches a transition that is exiting `parent.child`
 * var match = {
 *   exiting: 'parent.child'
 * }
 * ```
 */
export interface HookMatchCriteria {
    [key: string]: HookMatchCriterion | undefined;
    /** A [[HookMatchCriterion]] to match the destination state */
    to?: HookMatchCriterion;
    /** A [[HookMatchCriterion]] to match the original (from) state */
    from?: HookMatchCriterion;
    /** A [[HookMatchCriterion]] to match any state that would be exiting */
    exiting?: HookMatchCriterion;
    /** A [[HookMatchCriterion]] to match any state that would be retained */
    retained?: HookMatchCriterion;
    /** A [[HookMatchCriterion]] to match any state that would be entering */
    entering?: HookMatchCriterion;
}
export interface IMatchingNodes {
    [key: string]: PathNode[];
    to: PathNode[];
    from: PathNode[];
    exiting: PathNode[];
    retained: PathNode[];
    entering: PathNode[];
}
/** @hidden */
export interface RegisteredHooks {
    [key: string]: RegisteredHook[];
}
/** @hidden */
export interface PathTypes {
    [key: string]: PathType;
    to: PathType;
    from: PathType;
    exiting: PathType;
    retained: PathType;
    entering: PathType;
}
/** @hidden */
export interface PathType {
    name: string;
    scope: TransitionHookScope;
}
/**
 * Hook Criterion used to match a transition.
 *
 * A [[Glob]] string that matches the name of a state.
 *
 * Or, a function with the signature `function(state) { return matches; }`
 * which should return a boolean to indicate if a state matches.
 *
 * Or, `true` to always match
 */
export declare type HookMatchCriterion = string | IStateMatch | boolean;
declare enum TransitionHookPhase {
    CREATE = 0,
    BEFORE = 1,
    RUN = 2,
    SUCCESS = 3,
    ERROR = 4,
}
declare enum TransitionHookScope {
    TRANSITION = 0,
    STATE = 1,
}
export { TransitionHookPhase, TransitionHookScope };
