feat(confirmationContext): add confirmationContext for managing yes/n…

…o modals (#19)

* add confirmation context

* Remove empty function

src/context/ConfirmationContext.tsx

@@ -0,0 +1,166 @@
+import React, { useReducer } from 'react';
+import { ActionType, createAction, getType } from 'typesafe-actions';
+import { Button, ButtonVariant, Modal, ModalVariant } from '@patternfly/react-core';
+
+interface Options {
+  title: string;
+  titleIconVariant?:
+    | 'success'
+    | 'danger'
+    | 'warning'
+    | 'info'
+    | 'default'
+    | React.ComponentType<any>;
+  message: string | React.ReactNode;
+  confirmBtnLabel: string;
+  cancelBtnLabel: string;
+  confirmBtnVariant: ButtonVariant;
+  onConfirm: () => void;
+}
+
+const openAction = createAction('open')<Options>();
+const enableProcessingAction = createAction('enableProcessing')();
+const closeAction = createAction('close')();
+
+interface IConfirmmationContext {
+  open: (options: Options) => void;
+  enableProcessing: () => void;
+  close: () => void;
+}
+
+const ConfirmationContext = React.createContext<IConfirmmationContext>({
+  open: () => undefined,
+  enableProcessing: () => undefined,
+  close: () => undefined,
+});
+
+//
+
+export type Action = ActionType<
+  typeof openAction | typeof enableProcessingAction | typeof closeAction
+>;
+
+export type State = Readonly<{
+  isOpen: boolean;
+  isProcessing: boolean;
+
+  title: string;
+  titleIconVariant?:
+    | 'success'
+    | 'danger'
+    | 'warning'
+    | 'info'
+    | 'default'
+    | React.ComponentType<any>;
+  message: string | React.ReactNode;
+  confirmBtnLabel: string;
+  cancelBtnLabel: string;
+  confirmBtnVariant: ButtonVariant;
+
+  hideCancelBtn: boolean;
+
+  onConfirm: () => void;
+}>;
+
+export const defaultState: State = {
+  isOpen: false,
+  isProcessing: false,
+
+  title: '',
+  titleIconVariant: undefined,
+  message: '',
+  confirmBtnLabel: 'Confirm',
+  cancelBtnLabel: 'Cancel',
+  confirmBtnVariant: ButtonVariant.primary,
+
+  hideCancelBtn: false,
+
+  onConfirm: () => undefined,
+};
+
+const reducer = (state: State, action: Action): State => {
+  switch (action.type) {
+    case getType(openAction):
+      return {
+        ...state,
+        ...action.payload,
+        isOpen: true,
+      };
+    case getType(enableProcessingAction):
+      return {
+        ...state,
+        isProcessing: true,
+      };
+    case getType(closeAction):
+      return defaultState;
+    default:
+      return state;
+  }
+};
+
+//
+
+interface IConfirmationContextProviderProps {
+  children: React.ReactNode;
+}
+
+export const ConfirmationContextProvider: React.FunctionComponent<IConfirmationContextProviderProps> =
+  ({ children }: IConfirmationContextProviderProps) => {
+    const [state, dispatch] = useReducer(reducer, { ...defaultState });
+
+    const onOpen = (options: Options) => dispatch(openAction(options));
+    const onProcessing = () => dispatch(enableProcessingAction());
+    const onCancel = () => {
+      dispatch(closeAction());
+    };
+
+    const confirmBtn = (
+      <Button
+        key="confirm"
+        aria-label="confirm"
+        variant={state.confirmBtnVariant}
+        isDisabled={state.isProcessing}
+        onClick={state.onConfirm}
+      >
+        {state.confirmBtnLabel}
+      </Button>
+    );
+
+    const cancelBtn = !state.hideCancelBtn ? (
+      <Button
+        key="cancel"
+        aria-label="cancel"
+        variant={ButtonVariant.link}
+        isDisabled={state.isProcessing}
+        onClick={onCancel}
+      >
+        {state.cancelBtnLabel}
+      </Button>
+    ) : undefined;
+
+    return (
+      <ConfirmationContext.Provider
+        value={{
+          open: onOpen,
+          enableProcessing: onProcessing,
+          close: onCancel,
+        }}
+      >
+        {children}
+        <Modal
+          variant={ModalVariant.small}
+          title={state.title}
+          titleIconVariant={state.titleIconVariant}
+          isOpen={state.isOpen}
+          onClose={onCancel}
+          aria-label="confirm-dialog"
+          actions={!state.hideCancelBtn ? [confirmBtn, cancelBtn] : [confirmBtn]}
+        >
+          {state.message}
+        </Modal>
+      </ConfirmationContext.Provider>
+    );
+  };
+
+export const useConfirmationContext = (): IConfirmmationContext =>
+  React.useContext(ConfirmationContext);

src/context/index.ts

@@ -0,0 +1 @@
+export * from "./ConfirmationContext";

src/index.ts

@@ -9,3 +9,5 @@ export * from './hooks/useModal';
 export * from './hooks/useTable';
 export * from './hooks/useTableControls';
 export * from './hooks/useToolbar';
+
+export * from './context/ConfirmationContext';