mobx-vm-entities
v3.1.5
Published
## Usage (with using `rootStore`)
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mobx-vm-entities
Usage (with using rootStore
)
1. Create ViewModelImpl
class
This class you will needed for creating your own view model classes
You can implement your own solution based on ViewModel<Payload, ParentViewModel>
, but AbstractViewModel
has a lot of ready solutions like mount()
, or payloadChanged()
Only one thing that you should implement is the getParentViewModel
and constructor
because it requires (in most cases) RootStore
import {
AbstractViewModel,
AbstractViewModelParams,
ViewModel,
} from 'mobx-vm-entities';
export class ViewModelImpl<
Payload extends AnyObject = EmptyObject,
ParentViewModel extends ViewModel<any> = ViewModel<any>,
>
extends AbstractViewModel<Payload, ParentViewModel>
implements ViewModel<Payload, ParentViewModel>
{
constructor(
protected rootStore: RootStore,
params: AbstractViewModelParams<Payload>,
) {
super(params);
}
protected getParentViewModel(
parentViewModelId: Maybe<string>,
): ParentViewModel | null {
return this.rootStore.viewModels.get<ParentViewModel>(parentViewModelId);
}
}
2. Create ViewModelStoreImpl
Class
This class will contains info about all your view model instances and will have fabric for creating instances of the your ViewModelImpl
classes.
Because it requires (in most cases) the rootStore
import {
AbstractViewModelParams,
AbstractViewModelStore,
ViewModel,
ViewModelCreateConfig,
ViewModelStore,
} from 'mobx-vm-entities';
export class ViewModelStoreImpl
extends AbstractViewModelStore
implements ViewModelStore
{
constructor(protected rootStore: RootStore) {
super();
}
create<VM extends ViewModel<any, ViewModel<any, any>>>(
config: ViewModelCreateConfig<VM>,
): VM {
const VM = config.VM;
const params: AbstractViewModelParams<VM['payload']> = {
id: config.id,
payload: config.payload,
parentViewModelId: config.parentViewModelId,
};
return new VM(this.rootStore, params);
}
}
3. Attach your ViewModelStore
to rootStore
rootStore.viewModels = new ViewModelStoreImpl(rootStore);
4. Add ViewModelsProvider
at the root of your React app
import { ViewModelsProvider } from 'mobx-vm-entities';
import { observer } from 'mobx-react-lite';
import { useRootStore } from '../../root-store'; // code line maybe different for your case
export const App = observer(() => {
const rootStore = useRootStore();
return (
<ViewModelsProvider value={rootStore.viewModels}>
<Router />
<Notifications />
<ModalsContainer />
</ViewModelsProvider>
)
})
5. Use it
import { ViewModelImpl } from "your-import";
type Payload = {
test: number
}
class MyButtonViewModel extends ViewModelImpl<Payload> {
title = 'click me!';
mount() {
super.mount();
this.disposer.add(
reaction(() => this.payload.test > 10, (ok) => {
console.info("ok", ok)
})
)
}
unmount() {
super.unmount();
}
payloadChanged(payload) {
console.info('payload', payload);
}
handleClick = () => {
console.info("click")
}
dispose() {
super.dispose();
// your dispose
}
}
const MyButtonView = observer(({ model }: ViewModelProps<MyButtonViewModel>) => {
return (
<button onClick={model.handleClick}>{model.title}</button>
)
})
export const MyButton = withViewModel(
MyButtonViewModel,
// additional config
// {
// id?: string, // could be used to set fixed identifier for singleton view models
// fallback?: ComponentType, // render fallback component
// ctx?: Record<string, any>, // additional object to customize something using viewModels store
// factory?: (config: ViewModelCreateConfig<VM>) => VM; // function which create the instance of this view model
// }
)(MyButtonView);
export const SomeOtherComponent = () => {
return (
<div>
<MyButton payload={{ test: 10 }} />
</div>
)
}