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/**
* Copyright (C) 2018 The Android Open Source Project
*
* 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.
*/
/** This class defines and/or implements the common properties and methods
* used among menus.
*/
import { AppService } from '../appservice';
import { MatSnackBar } from '@angular/material';
import moment from 'moment-timezone';
export abstract class MenuBaseClass {
count = -1;
loading = false;
pageSizeOptions = [20, 50, 100, 200];
pageSize = 100;
pageIndex = 0;
protected constructor(private appService: AppService,
public snackBar: MatSnackBar) {
this.appService.closeSideNav();
this.snackBar.dismiss();
}
/** Returns an Observable which handles a response of count API.
* @param additionalOperations A list of lambda functions.
*/
getDefaultCountObservable(additionalOperations: any[] = []) {
return {
next: (response) => {
this.count = response.count;
for (const operation of additionalOperations) {
operation(response);
}
},
error: (error) => this.showSnackbar(`[${error.status}] ${error.name}`)
};
}
getRelativeTime(timeString) {
return (moment.tz(timeString, 'YYYY-MM-DDThh:mm:ss', 'UTC').isValid() ?
moment.tz(timeString, 'YYYY-MM-DDThh:mm:ss', 'UTC').fromNow() : '---');
}
/** Displays a snackbar notification. */
showSnackbar(message = 'Error', duration = 5000) {
this.loading = false;
this.snackBar.open(message, 'DISMISS', {duration});
}
/** Displays a side nav window and lists all properties of selected entity. */
onShowDetailsClicked(entity) {
this.appService.showDetails(entity);
}
}
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