Redux changes and refactoring

src/redux/actions/common_actions.js

@@ -1,3 +1,26 @@
+import * as Constants from '../../constants';
 import {createAction} from 'redux-starter-kit';
 
-export const setApplicationReady = createAction('common/setApplicationReady');
+let ipcRenderer;
+if (!process.versions.hasOwnProperty('electron')) {
+  ipcRenderer = ((window && window.require) ? window.require('electron').ipcRenderer : null);
+}
+
+export const setApplicationReady = createAction('common/setApplicationReady');
+
+export const showWindow = () => {
+  return dispatch => {
+    if (ipcRenderer) {
+      ipcRenderer.send(Constants.IPC_Show_Window);
+    }
+  };
+};
+
+export const shutdownApplication = () => {
+  return dispatch => {
+    dispatch(setApplicationReady(false));
+    if (ipcRenderer) {
+      ipcRenderer.send(Constants.IPC_Shutdown);
+    }
+  };
+};

src/redux/actions/error_actions.js

@@ -0,0 +1,45 @@
+import {showWindow, shutdownApplication} from './common_actions';
+
+let ErrorActions = [];
+
+export const CLEAR_ERROR = 'error/clearError';
+export const clearError = () => {
+  return {
+    type: CLEAR_ERROR,
+    payload: null,
+  };
+};
+
+export const dismissError = () => {
+  return (dispatch, getState) => {
+    dispatch(clearError());
+    const errorAction = ErrorActions[0];
+    ErrorActions = ErrorActions.splice(1);
+    if (errorAction) {
+      errorAction();
+    }
+    if (getState().error.ErrorCritical) {
+      dispatch(shutdownApplication());
+    }
+  };
+};
+
+export const notifyError = (msg, critical, callback) => {
+  return dispatch => {
+    ErrorActions = [callback, ...ErrorActions];
+    msg = msg.toString();
+    dispatch(setErrorInfo(msg, critical));
+    dispatch(showWindow());
+  };
+};
+
+export const SET_ERROR_INFO = 'error/setErrorInfo';
+export const setErrorInfo = (msg, critical) => {
+  return {
+    type: SET_ERROR_INFO,
+    payload: {
+      msg,
+      critical
+    }
+  }
+};

src/redux/actions/install_actions.js

@@ -76,6 +76,5 @@ export const installUpgrade = (source, sha256, signature, skipVerification, comp
   };
 };
 
-
 export const setInstallActive = createAction('install/setInstallActive');
 export const setInstallComplete = createAction('install/setInstallComplete');

src/redux/reducers/error_reducer.js

@@ -0,0 +1,26 @@
+import {createReducer} from 'redux-starter-kit';
+import {CLEAR_ERROR, SET_ERROR_INFO} from '../actions/error_actions';
+
+export const errorReducer = createReducer({
+  DisplayError: false,
+  ErrorCritical: false,
+  ErrorStack: [],
+}, {
+  [CLEAR_ERROR]: state => {
+    const errorStack = (state.ErrorStack.length > 0) ? state.ErrorStack.slice(1) : [];
+    return {
+      ...state,
+      DisplayError: (errorStack.length > 0),
+      ErrorStack: errorStack,
+    }
+  },
+  [SET_ERROR_INFO]: (state, action) => {
+    const errorStack = [action.payload.msg, ...state.ErrorStack];
+    return {
+      ...state,
+      DisplayError: true,
+      ErrorCritical: state.ErrorCritical || action.payload.critical,
+      ErrorStack: errorStack,
+    }
+  }
+});

src/redux/store/createAppStore.js

@@ -1,6 +1,7 @@
 import {configureStore, getDefaultMiddleware} from 'redux-starter-kit';
 import {createCommonReducer} from '../reducers/common_reducer';
 import {downloadReducer} from '../reducers/download_reducer';
+import {errorReducer} from '../reducers/error_reducer';
 import {installReducer} from '../reducers/install_reducer';
 import {mountReducer} from '../reducers/mount_reducer';
 import {releaseVersionReducer} from '../reducers/release_version_reducer';
@@ -9,6 +10,7 @@ export default function createAppStore(platform, appPlatform, version) {
   const reducer = {
     common: createCommonReducer(platform, appPlatform, version),
     download: downloadReducer,
+    error: errorReducer,
     install: installReducer,
     mounts: mountReducer,
     relver: releaseVersionReducer,