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authorHerbert Eiselt <herbert.eiselt@highstreet-technologies.com>2019-02-11 14:54:12 +0100
committerHerbert Eiselt <herbert.eiselt@highstreet-technologies.com>2019-02-11 14:54:53 +0100
commit3d202a04b99f0e61b6ccf8b7a5610e1a15ca58e7 (patch)
treeab756cfa8de5eced886d3947423d198be8c0ce62 /sdnr/wt/odlux/framework/src/flux
parent12a8c669f52c0e84d580c078cee849b25133b585 (diff)
Add sdnr wt odlux
Add complete sdnr wireless transport app odlux core and apps Change-Id: I5dcbfb8f3b790e3bda7c8df67bd69d81958f65e5 Issue-ID: SDNC-576 Signed-off-by: Herbert Eiselt <herbert.eiselt@highstreet-technologies.com>
Diffstat (limited to 'sdnr/wt/odlux/framework/src/flux')
-rw-r--r--sdnr/wt/odlux/framework/src/flux/action.ts8
-rw-r--r--sdnr/wt/odlux/framework/src/flux/connect.ts148
-rw-r--r--sdnr/wt/odlux/framework/src/flux/middleware.ts90
-rw-r--r--sdnr/wt/odlux/framework/src/flux/store.ts81
4 files changed, 327 insertions, 0 deletions
diff --git a/sdnr/wt/odlux/framework/src/flux/action.ts b/sdnr/wt/odlux/framework/src/flux/action.ts
new file mode 100644
index 000000000..8a90f24b2
--- /dev/null
+++ b/sdnr/wt/odlux/framework/src/flux/action.ts
@@ -0,0 +1,8 @@
+/**
+ * Represents an action in the odlux flux architecture.
+ */
+export abstract class Action { }
+
+export interface IActionHandler<TState, TAction extends Action = Action> {
+ (state: TState | undefined, action: TAction): TState;
+} \ No newline at end of file
diff --git a/sdnr/wt/odlux/framework/src/flux/connect.ts b/sdnr/wt/odlux/framework/src/flux/connect.ts
new file mode 100644
index 000000000..0c8d36d0a
--- /dev/null
+++ b/sdnr/wt/odlux/framework/src/flux/connect.ts
@@ -0,0 +1,148 @@
+import * as React from 'react';
+import * as PropTypes from 'prop-types';
+
+import { Dispatch } from '../flux/store';
+
+import { ApplicationStore, IApplicationStoreState } from '../store/applicationStore';
+
+interface IApplicationStoreContext {
+ applicationStore: ApplicationStore;
+}
+
+export interface IDispatcher {
+ dispatch: Dispatch;
+}
+
+interface IApplicationStoreProps {
+ state: IApplicationStoreState;
+}
+
+interface IDispatchProps {
+ dispatch: Dispatch;
+}
+
+type FuncInfer<T> = {
+ ([...args]: any): T;
+};
+
+type FunctionResult<T> = T extends FuncInfer<infer U> ? U : never;
+
+type ComponentDecoratorInfer<TMergedProps> = {
+ <TProps>(wrappedComponent: React.ComponentType<TProps & TMergedProps>): React.ComponentClass<TProps>;
+};
+
+export type Connect<TMapProps = undefined, TMapDispatch = undefined> =
+ (TMapProps extends undefined ? IApplicationStoreProps : FunctionResult<TMapProps>) &
+ (TMapDispatch extends undefined ? IDispatchProps : FunctionResult<TMapDispatch>);
+
+export function connect(): ComponentDecoratorInfer<IApplicationStoreProps & IDispatchProps>;
+
+export function connect<TStateProps>(
+ mapStateToProps: (state: IApplicationStoreState) => TStateProps
+): ComponentDecoratorInfer<TStateProps & IDispatchProps>;
+
+export function connect<TStateProps, TDispatchProps>(
+ mapStateToProps: (state: IApplicationStoreState) => TStateProps,
+ mapDispatchToProps: (dispatcher: IDispatcher) => TDispatchProps
+): ComponentDecoratorInfer<TStateProps & TDispatchProps>;
+
+
+export function connect<TDispatchProps>(
+ mapStateToProps: undefined,
+ mapDispatchToProps: (dispatcher: IDispatcher) => TDispatchProps
+): ComponentDecoratorInfer<IApplicationStoreProps & TDispatchProps>;
+
+
+export function connect<TProps, TStateProps, TDispatchProps>(
+ mapStateToProps?: ((state: IApplicationStoreState) => TStateProps),
+ mapDispatchToProps?: ((dispatcher: IDispatcher) => TDispatchProps)
+) :
+ ((WrappedComponent: React.ComponentType<TProps & (IApplicationStoreProps | TStateProps) & IDispatchProps>) => React.ComponentType<TProps>) {
+
+ const injectApplicationStore = (WrappedComponent: React.ComponentType<TProps & (IApplicationStoreProps | TStateProps) & IDispatchProps>): React.ComponentType<TProps> => {
+
+ class StoreAdapter extends React.Component<TProps, {}> {
+ public static contextTypes = { ...WrappedComponent.contextTypes, applicationStore: PropTypes.object.isRequired };
+ context: IApplicationStoreContext;
+
+ render(): JSX.Element {
+
+ if (isWrappedComponentIsVersion1(WrappedComponent)) {
+ const element = React.createElement(WrappedComponent, { ...(this.props as any), state: this.store.state, dispatch: this.store.dispatch.bind(this.store) });
+ return element;
+ } else if (mapStateToProps && isWrappedComponentIsVersion2(WrappedComponent)) {
+ const element = React.createElement(WrappedComponent, { ...(this.props as any), ...(mapStateToProps(this.store.state) as any), dispatch: this.store.dispatch.bind(this.store) });
+ return element;
+ } else if (mapStateToProps && mapDispatchToProps && isWrappedComponentIsVersion3(WrappedComponent)) {
+ const element = React.createElement(WrappedComponent, { ...(this.props as any), ...(mapStateToProps(this.store.state) as any), ...(mapDispatchToProps({ dispatch: this.store.dispatch.bind(this.store)}) as any) });
+ return element;
+ } else if (!mapStateToProps && mapDispatchToProps && isWrappedComponentIsVersion4(WrappedComponent)) {
+ const element = React.createElement(WrappedComponent, { ...(this.props as any), state: this.store.state, ...(mapDispatchToProps({ dispatch: this.store.dispatch.bind(this.store)}) as any) });
+ return element;
+ }
+ throw new Error("Invalid arguments in connect.");
+ }
+
+ componentDidMount(): void {
+ this.store && this.store.changed.addHandler(this.handleStoreChanged);
+ }
+
+ componentWillUnmount(): void {
+ this.store && this.store.changed.removeHandler(this.handleStoreChanged);
+ }
+
+ private get store(): ApplicationStore {
+ return this.context.applicationStore;
+ }
+
+ private handleStoreChanged = () => {
+ this.forceUpdate();
+ }
+ }
+
+ return StoreAdapter;
+ }
+
+
+ return injectApplicationStore;
+
+ /* inline methods */
+
+ function isWrappedComponentIsVersion1(wrappedComponent: any): wrappedComponent is React.ComponentType<TProps & IApplicationStoreProps & IDispatchProps> {
+ return !mapStateToProps && !mapDispatchToProps;
+ }
+
+ function isWrappedComponentIsVersion2(wrappedComponent: any): wrappedComponent is React.ComponentType<TProps & TStateProps & IDispatchProps> {
+ return !!mapStateToProps && !mapDispatchToProps;
+ }
+
+ function isWrappedComponentIsVersion3(wrappedComponent: any): wrappedComponent is React.ComponentType<TProps & TStateProps & TDispatchProps> {
+ return !!mapStateToProps && !!mapDispatchToProps;
+ }
+
+ function isWrappedComponentIsVersion4(wrappedComponent: any): wrappedComponent is React.ComponentType<TProps & TStateProps & TDispatchProps> {
+ return !mapStateToProps && !!mapDispatchToProps;
+ }
+}
+
+interface ApplicationStoreProviderProps extends React.Props<ApplicationStoreProvider> {
+ applicationStore: ApplicationStore;
+}
+
+export class ApplicationStoreProvider extends React.Component<ApplicationStoreProviderProps>
+ implements /* React.ComponentLifecycle<ApplicationStoreProviderProps, any>, */ React.ChildContextProvider<IApplicationStoreContext> {
+
+ public static childContextTypes = { applicationStore: PropTypes.object.isRequired };
+
+ getChildContext(): IApplicationStoreContext {
+ return {
+ applicationStore: this.props.applicationStore
+ };
+ }
+
+ render(): JSX.Element {
+ return React.Children.only(this.props.children);
+ }
+}
+
+export default connect; \ No newline at end of file
diff --git a/sdnr/wt/odlux/framework/src/flux/middleware.ts b/sdnr/wt/odlux/framework/src/flux/middleware.ts
new file mode 100644
index 000000000..006d94551
--- /dev/null
+++ b/sdnr/wt/odlux/framework/src/flux/middleware.ts
@@ -0,0 +1,90 @@
+import { Action, IActionHandler } from './action';
+import { Store, Dispatch, Enhancer } from './store';
+
+export interface MiddlewareArg<T> {
+ dispatch: Dispatch;
+ getState: () => T;
+}
+
+export interface Middleware<T> {
+ (obj: MiddlewareArg<T>): Function;
+}
+
+class InitialisationAction extends Action { };
+const initialisationAction = new InitialisationAction();
+
+export type ActionHandlerMapObject<S extends { [key: string]: any }, A extends Action = Action> = {
+ [K in keyof S]: IActionHandler<S[K], A>
+}
+
+export const combineActionHandler = <TState extends { [key: string]: any }, TAction extends Action = Action>(actionHandlers: ActionHandlerMapObject<TState, TAction>) : IActionHandler<TState, TAction> => {
+ const finalActionHandlers: ActionHandlerMapObject<TState> = {} as ActionHandlerMapObject<TState>;
+ Object.keys(actionHandlers).forEach(actionHandlerKey => {
+ const handler = actionHandlers[actionHandlerKey];
+ if (typeof handler === 'function') {
+ finalActionHandlers[actionHandlerKey] = handler;
+ }
+ });
+
+ // ensure initialisation
+ Object.keys(finalActionHandlers).forEach(key => {
+ const actionHandler = finalActionHandlers[key];
+ const initialState = actionHandler(undefined, initialisationAction);
+ if (typeof initialState === 'undefined') {
+ const errorMessage = `Action handler ${ key } returned undefiend during initialization.`;
+ throw new Error(errorMessage);
+ }
+ });
+
+ return function combination<TAction extends Action>(state: TState = ({} as TState), action: TAction) {
+ let hasChanged = false;
+ const nextState : TState = {} as TState;
+ Object.keys(finalActionHandlers).forEach(key => {
+ const actionHandler = finalActionHandlers[key];
+ const previousState = state[key];
+ const nextStateKey = actionHandler(previousState, action);
+ if (typeof nextStateKey === 'undefined') {
+ const errorMessage = `Given ${ action.constructor } and action handler ${ key } returned undefiend.`;
+ throw new Error(errorMessage);
+ }
+ nextState[key] = nextStateKey;
+ hasChanged = hasChanged || nextStateKey !== previousState;
+ });
+ return (hasChanged ? nextState : state) as TState;
+ };
+};
+
+export const chainMiddleware = <TStoreState>(...middlewares: Middleware<TStoreState>[]): Enhancer<TStoreState> => {
+ return (store: Store<TStoreState>) => {
+ const middlewareAPI = {
+ getState() { return store.state },
+ dispatch: <TAction extends Action>(action: TAction) => store.dispatch(action) // we want to use the combinded dispatch
+ // we should NOT use the flux dispatcher here, since the action would affect ALL stores
+ };
+ const chain = middlewares.map(middleware => middleware(middlewareAPI));
+ return compose(...chain)(store.dispatch) as Dispatch;
+ }
+};
+
+/**
+ * Composes single-argument functions from right to left. The rightmost
+ * function can take multiple arguments as it provides the signature for
+ * the resulting composite function.
+ *
+ * @param {...Function} funcs The functions to compose.
+ * @returns {Function} A function obtained by composing the argument functions
+ * from right to left. For example, compose(f, g, h) is identical to doing
+ * (...args) => f(g(h(...args))).
+ */
+const compose = (...funcs: Function[]) => {
+ if (funcs.length === 0) {
+ return (arg: any) => arg
+ }
+
+ if (funcs.length === 1) {
+ return funcs[0]
+ }
+
+ return funcs.reduce((a, b) => (...args: any[]) => a(b(...args)));
+};
+
diff --git a/sdnr/wt/odlux/framework/src/flux/store.ts b/sdnr/wt/odlux/framework/src/flux/store.ts
new file mode 100644
index 000000000..7a2e578f9
--- /dev/null
+++ b/sdnr/wt/odlux/framework/src/flux/store.ts
@@ -0,0 +1,81 @@
+import { Event } from "../common/event"
+
+import { Action } from './action';
+import { IActionHandler } from './action';
+
+export interface Dispatch {
+ <TAction extends Action>(action: TAction): TAction;
+}
+
+export interface Enhancer<TStoreState> {
+ (store: Store<TStoreState>): Dispatch;
+}
+
+class InitialisationAction extends Action { };
+const initialisationAction = new InitialisationAction();
+
+export class Store<TStoreState> {
+
+ constructor(actionHandler: IActionHandler<TStoreState>, enhancer?: Enhancer<TStoreState>)
+ constructor(actionHandler: IActionHandler<TStoreState>, initialState: TStoreState, enhancer?: Enhancer<TStoreState>)
+ constructor(actionHandler: IActionHandler<TStoreState>, initialState?: TStoreState | Enhancer<TStoreState>, enhancer?: Enhancer<TStoreState>) {
+ if (typeof initialState === 'function') {
+ enhancer = initialState as Enhancer<TStoreState>;
+ initialState = undefined;
+ }
+
+ this._isDispatching = false;
+
+ this.changed = new Event<void>(); // sollten wir hier eventuell sogar den state mit übergeben ?
+
+ this._actionHandler = actionHandler;
+
+ this._state = initialState as TStoreState;
+ if (enhancer) this._dispatch = enhancer(this);
+
+ this._dispatch(initialisationAction);
+ }
+
+ public changed: Event<void>;
+
+ private _dispatch: Dispatch = <TAction extends Action>(payload: TAction): TAction => {
+ if (payload == null || !(payload instanceof Action)) {
+ throw new Error(
+ 'Actions must inherit from type Action. ' +
+ 'Use a custom middleware for async actions.'
+ );
+ }
+
+ if (this._isDispatching) {
+ throw new Error('ActionHandler may not dispatch actions.');
+ }
+
+ const oldState = this._state;
+ try {
+ this._isDispatching = true;
+ this._state = this._actionHandler(oldState, payload);
+ } finally {
+ this._isDispatching = false;
+ }
+
+ if (this._state !== oldState) {
+ this.changed.invoke();
+ }
+
+ return payload;
+ }
+
+ public get dispatch(): Dispatch {
+ return this._dispatch;
+ }
+
+ public get state() {
+ return this._state
+ }
+
+ private _state: TStoreState;
+ private _isDispatching: boolean;
+ private _actionHandler: IActionHandler<TStoreState>;
+
+}
+