move dir

doric-js/src/pattern/candies.ts

@@ -0,0 +1,69 @@
+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+export function take<T>(target: T) {
+    return (block: (p: T) => void) => {
+        block(target)
+    }
+}
+
+export function takeNonNull<T, R>(target?: T) {
+    return (block: (p: T) => R) => {
+        if (target !== undefined) {
+            return block(target)
+        }
+    }
+}
+
+export function takeNull<T, R>(target?: T) {
+    return (block: () => R) => {
+        if (target === undefined) {
+            return block()
+        }
+    }
+}
+
+export function takeLet<T, R>(target: T) {
+    return (block: (p: T) => R | undefined) => {
+        return block(target)
+    }
+}
+
+export function takeAlso<T>(target: T) {
+    return (block: (p: T) => void) => {
+        block(target)
+        return target
+    }
+}
+
+export function takeIf<T>(target: T) {
+    return (predicate: (t: T) => boolean) => {
+        return predicate(target) ? target : undefined
+    }
+}
+
+export function takeUnless<T>(target: T) {
+    return (predicate: (t: T) => boolean) => {
+        return predicate(target) ? undefined : target
+    }
+}
+
+export function repeat(action: (count: number) => void) {
+    return (times: number) => {
+        for (let i = 0; i < times; i++) {
+            action(i)
+        }
+    }
+}

doric-js/src/pattern/index.pattern.ts

@@ -0,0 +1,18 @@
+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+export * from './candies'
+export * from './provider'
+export * from './mvvm'

doric-js/src/pattern/mvvm.ts

@@ -0,0 +1,78 @@
+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { Group } from "../ui/view"
+import { Panel } from "../ui/panel"
+
+export abstract class ViewHolder {
+    abstract build(root: Group): void
+}
+
+export type Setter<M> = (state: M) => void
+
+export abstract class ViewModel<M extends Object, V extends ViewHolder> {
+    private state: M
+    private viewHolder: V
+
+    constructor(obj: M, v: V) {
+        this.state = obj
+        this.viewHolder = v
+    }
+
+    getState() {
+        return this.state
+    }
+
+    updateState(setter: Setter<M>) {
+        setter(this.state)
+        this.onBind(this.state, this.viewHolder)
+    }
+
+    attach(view: Group) {
+        this.viewHolder.build(view)
+        this.onAttached(this.state, this.viewHolder)
+        this.onBind(this.state, this.viewHolder)
+    }
+
+    abstract onAttached(state: M, vh: V): void
+
+    abstract onBind(state: M, vh: V): void
+}
+export type ViewModelClass<M, V extends ViewHolder> = new (m: M, v: V) => ViewModel<M, V>
+
+export type ViewHolderClass<V> = new () => V
+
+export abstract class VMPanel<M extends Object, V extends ViewHolder> extends Panel {
+
+    private vm?: ViewModel<M, V>
+    private vh?: V
+
+    abstract getViewModelClass(): ViewModelClass<M, V>
+
+    abstract getState(): M
+
+    abstract getViewHolderClass(): ViewHolderClass<V>
+
+    getViewModel() {
+        return this.vm
+    }
+
+    build(root: Group): void {
+        this.vh = new (this.getViewHolderClass())
+        this.vm = new (this.getViewModelClass())(this.getState(), this.vh)
+        this.vm.attach(root)
+    }
+}
+

doric-js/src/pattern/provider.ts

@@ -0,0 +1,99 @@
+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+export type Observer<T> = (v: T) => void
+export type Updater<T> = (v: T) => T
+
+export interface IObservable<T> {
+
+    addObserver(observer: Observer<T | undefined>): void
+
+    removeObserver(observer: Observer<T | undefined>): void
+
+    update(updater: Updater<T | undefined>): void
+}
+
+export class Observable<M> implements IObservable<M>{
+    private provider: IProvider
+
+    private clz: { new(...args: any[]): M }
+
+    private observers: Set<Observer<M | undefined>> = new Set
+    constructor(provider: IProvider, clz: { new(...args: any[]): M }) {
+        this.provider = provider
+        this.clz = clz
+    }
+
+    addObserver(observer: Observer<M | undefined>): void {
+        this.observers.add(observer)
+    }
+
+    removeObserver(observer: Observer<M | undefined>): void {
+        this.observers.delete(observer)
+    }
+
+    update(updater: Updater<M | undefined>): void {
+        const oldV = this.provider.acquire(this.clz)
+        const newV = updater(oldV)
+        if (newV !== undefined) {
+            this.provider.provide(newV)
+        }
+        for (let observer of this.observers) {
+            observer(newV)
+        }
+    }
+}
+
+
+export interface IProvider {
+    provide(obj: Object): void
+    acquire<T>(clz: { new(...args: any[]): T }): T | undefined
+    remove<T>(clz: { new(...args: any[]): T }): void
+    clear(): void
+    observe<T>(clz: { new(...args: any[]): T }): Observable<T>
+}
+
+export class Provider implements IProvider {
+
+    private provision: Map<Function, Object> = new Map
+    private observableMap: Map<Function, Observable<any>> = new Map
+
+    provide(obj: Object) {
+        this.provision.set(obj.constructor, obj)
+    }
+
+    acquire<T>(clz: { new(...args: any[]): T }): T | undefined {
+        const ret = this.provision.get(clz)
+        return ret as T | undefined
+    }
+
+    remove<T>(clz: new (...args: any[]) => T): void {
+        this.provision.delete(clz)
+    }
+
+    clear(): void {
+        this.provision.clear()
+    }
+
+    observe<T>(clz: new (...args: any[]) => T): Observable<T> {
+        let observable = this.observableMap.get(clz)
+        if (observable === undefined) {
+            observable = new Observable(this, clz)
+            this.observableMap.set(clz, observable)
+        }
+        return observable
+    }
+}
+