Class: AbstractController
@ima/core.AbstractController
Basic implementation of the Controller interface, providing the default implementation of the most of the API.
Hierarchy
↳
AbstractController
Constructors
constructor
• new AbstractController()
Inherited from
Properties
_extensions
• Protected _extensions: Map<Extension | IExtension, Extension>
Defined in
packages/core/src/controller/AbstractController.ts:12
_pageStateManager
• Protected Optional _pageStateManager: PageStateManager
Defined in
packages/core/src/controller/AbstractController.ts:11
params
• params: UnknownParameters = {}
The route parameters extracted from the current route. This field is set externally by IMA right before the init or the update method is called.
Defined in
packages/core/src/controller/AbstractController.ts:22
status
• status: number = 200
The HTTP response code to send to the client.
Defined in
packages/core/src/controller/AbstractController.ts:16
Accessors
$extensions
• Static get $extensions(): IExtension[]
Returns
Defined in
packages/core/src/controller/AbstractController.ts:24
Methods
activate
▸ activate(): void
Callback for activating the controller in the UI. This is the last method invoked during controller initialization, called after all the promises returned from the load method have been resolved and the controller has configured the meta manager.
The controller may register any React and DOM event listeners in this method. The controller may start receiving event bus event after this method completes.
Returns
void
Inherited from
Defined in
packages/core/src/controller/Controller.ts:59
addExtension
▸ addExtension(extension, extensionInstance?): void
Adds the provided extension to this controller. All extensions should be added to the controller before the init method is invoked.
Parameters
| Name | Type |
|---|---|
extension | Extension | IExtension |
extensionInstance? | Extension |
Returns
void
Overrides
Defined in
packages/core/src/controller/AbstractController.ts:78
beginStateTransaction
▸ beginStateTransaction(): void
Starts queueing state patches off the controller state. While the transaction
is active every setState call has no effect on the current state.
Note that call to getState after the transaction has begun will
return state as it was before the transaction.
Returns
void
Overrides
Controller.beginStateTransaction
Defined in
packages/core/src/controller/AbstractController.ts:51
cancelStateTransaction
▸ cancelStateTransaction(): void
Cancels ongoing state transaction. Uncommitted state changes are lost.
Returns
void
Overrides
Controller.cancelStateTransaction
Defined in
packages/core/src/controller/AbstractController.ts:69
commitStateTransaction
▸ commitStateTransaction(): void
Applies queued state patches to the controller state. All patches are squashed
and applied with one setState call.
Returns
void
Overrides
Controller.commitStateTransaction
Defined in
packages/core/src/controller/AbstractController.ts:60
deactivate
▸ deactivate(): void
Callback for deactivating the controller in the UI. This is the first method invoked during controller deinitialization. This usually happens when the user navigates to a different URL.
This method is the lifecycle counterpart of the activate method.
The controller should deregister listeners registered and release all resources obtained in the activate method.
Returns
void
Inherited from
Defined in
packages/core/src/controller/Controller.ts:74
destroy
▸ destroy(): void
Finalization callback, called when the controller is being discarded by the application. This usually happens when the user navigates to a different URL.
This method is the lifecycle counterpart of the init method.
The controller should release all resources obtained in the init method. The controller must release any resources that might not be released automatically when the controller's instance is destroyed by the garbage collector.
Returns
void
Inherited from
Defined in
packages/core/src/controller/Controller.ts:45
getExtension
▸ getExtension(extension): undefined | Extension
Inherit Doc
Parameters
| Name | Type |
|---|---|
extension | IExtension |
Returns
undefined | Extension
Defined in
packages/core/src/controller/AbstractController.ts:97
getExtensions
▸ getExtensions(): Extension[]
Returns the controller's extensions.
Returns
The extensions added to this controller.
Overrides
Defined in
packages/core/src/controller/AbstractController.ts:104
getHttpStatus
▸ getHttpStatus(): number
Returns the HTTP status code to send to the client, should the controller be used at the server-side.
Returns
number
The HTTP status code to send to the client.
Overrides
Defined in
packages/core/src/controller/AbstractController.ts:132
getRouteParams
▸ getRouteParams(): UnknownParameters
Returns the current route parameters.
Returns
The current route parameters.
Overrides
Defined in
packages/core/src/controller/AbstractController.ts:118
getState
▸ getState(): UnknownParameters
Returns the controller's current state.
Returns
The current state of this controller.
Overrides
Defined in
packages/core/src/controller/AbstractController.ts:40
init
▸ init(): void
Callback for initializing the controller after the route parameters have been set on this controller.
Returns
void
Inherited from
Defined in
packages/core/src/controller/Controller.ts:28
load
▸ load(): UnknownPromiseParameters | Promise<UnknownPromiseParameters>
Callback the controller uses to request the resources it needs to render its view. This method is invoked after the init method.
The controller should request all resources it needs in this method, and represent each resource request as a promise that will resolve once the resource is ready for use (these can be data fetched over HTTP(S), database connections, etc).
The method must return a plain flat object. The field names of the object identify the resources being fetched and prepared, each value must be either the resource (e.g. view configuration or a value retrieved synchronously) or a Promise that will resolve to the resource.
The IMA will use the object to set the state of the controller.
If at the server side, the IMA will wait for all the promises to resolve, replaces the promises with the resolved values and sets the resulting object as the controller's state.
If at the client side, the IMA will first set the controller's state to an object containing only the fields of the returned object that were not promises. IMA will then update the controller's state every time a promise of the returned object resolves. IMA will update the state by adding the resolved resource to the controller's state.
Any returned promise that gets rejected will redirect the application to the error page. The error page that will be used depends on the status code of the error.
Returns
UnknownPromiseParameters | Promise<UnknownPromiseParameters>
A map object of promises resolved when all resources the controller requires are ready. The resolved values will be pushed to the controller's state.
Inherited from
Defined in
packages/core/src/controller/Controller.ts:113
setMetaParams
▸ setMetaParams(loadedResources, metaManager, router, dictionary, settings): void
Callback used to configure the meta attribute manager. The method is called after the the controller's state has been patched with the all loaded resources and the view has been rendered.
Parameters
| Name | Type | Description |
|---|---|---|
loadedResources | UnknownParameters | A plain object representing a map of resource names to resources loaded by the load method. This is the same object as the one passed to the setState method. |
metaManager | MetaManager | Meta attributes manager to configure. |
router | Router | The current application router. |
dictionary | Dictionary | The current localization dictionary. |
settings | UnknownParameters | The application settings for the current application environment. |
Returns
void
Inherited from
Defined in
packages/core/src/controller/Controller.ts:240
setPageStateManager
▸ setPageStateManager(pageStateManager?): void
Sets the page state manager. The page state manager manages the
controller's state. The state manager can be set to null if this
controller loses the right to modify the state of the current page (e.g.
the user has navigated to a different route using a different
controller).
Parameters
| Name | Type | Description |
|---|---|---|
pageStateManager? | PageStateManager | The current state manager to use. |
Returns
void
Overrides
Controller.setPageStateManager
Defined in
packages/core/src/controller/AbstractController.ts:125
setRouteParams
▸ setRouteParams(params?): void
Sets the current route parameters. This method is invoked before the init method.
Parameters
| Name | Type | Description |
|---|---|---|
params | UnknownParameters | The current route parameters. |
Returns
void
Overrides
Defined in
packages/core/src/controller/AbstractController.ts:111
setState
▸ setState(statePatch): void
Patches the state of this controller using the provided object by copying the provided patch object fields to the controller's state object.
You can use this method to modify the state partially or add new fields to the state object.
Note that the state is not patched recursively but by replacing the values of the top-level fields of the state object.
Once the promises returned by the load method are resolved, this method is called with the an object containing the resolved values. The field names of the passed object will match the field names in the object returned from the load method.
Parameters
| Name | Type | Description |
|---|---|---|
statePatch | UnknownParameters | Patch of the controller's state to apply. |
Returns
void
Overrides
Defined in
packages/core/src/controller/AbstractController.ts:31
update
▸ update(prevParams): UnknownPromiseParameters | Promise<UnknownPromiseParameters>
Callback for updating the controller after a route update. This method
is invoked if the current route has the onlyUpdate flag set to true and
the current controller and view match those used by the previously active
route, or, the onlyUpdate option of the current route is a callback and
returned true.
The method must return an object with the same semantics as the result of the load method. The controller's state will only be patched by the returned object instead of replacing it completely.
The other controller lifecycle callbacks (init, load, activate, deactivate, Controller#deinit) are not call in case this method is used.
Parameters
| Name | Type | Description |
|---|---|---|
prevParams | UnknownParameters | Previous route parameters. |
Returns
UnknownPromiseParameters | Promise<UnknownPromiseParameters>
A map object of promises resolved when all resources the controller requires are ready. The resolved values will be pushed to the controller's state.