OpenSlides/client/src/app/site/site.component.ts
2019-03-06 07:50:54 +01:00

212 lines
6.6 KiB
TypeScript

import { Component, OnInit, ViewChild } from '@angular/core';
import { Router, NavigationEnd } from '@angular/router';
import { FormGroup, FormControl } from '@angular/forms';
import { MatDialog, MatSidenav } from '@angular/material';
import { TranslateService } from '@ngx-translate/core';
import { AuthService } from '../core/core-services/auth.service';
import { OperatorService } from '../core/core-services/operator.service';
import { BaseComponent } from '../base.component';
import { pageTransition, navItemAnim } from '../shared/animations';
import { ViewportService } from '../core/ui-services/viewport.service';
import { MainMenuService } from '../core/core-services/main-menu.service';
import { OpenSlidesStatusService } from '../core/core-services/openslides-status.service';
import { TimeTravelService } from '../core/core-services/time-travel.service';
import { langToLocale } from 'app/shared/utils/lang-to-locale';
@Component({
selector: 'os-site',
animations: [pageTransition, navItemAnim],
templateUrl: './site.component.html',
styleUrls: ['./site.component.scss']
})
export class SiteComponent extends BaseComponent implements OnInit {
/**
* HTML element of the side panel
*/
@ViewChild('sideNav')
public sideNav: MatSidenav;
/**
* Get the username from the operator (should be known already)
*/
public username: string;
/**
* is the user logged in, or the anonymous is active.
*/
public isLoggedIn: boolean;
/**
* Holds the typed search query.
*/
public searchform: FormGroup;
/**
* Constructor
*
* @param authService
* @param route
* @param operator
* @param vp
* @param translate
* @param dialog
* @param mainMenuService
* @param OSStatus
* @param timeTravel
*/
public constructor(
private authService: AuthService,
private router: Router,
public operator: OperatorService,
public vp: ViewportService,
public translate: TranslateService,
public dialog: MatDialog,
public mainMenuService: MainMenuService,
public OSStatus: OpenSlidesStatusService,
public timeTravel: TimeTravelService
) {
super();
this.operator.getViewUserObservable().subscribe(user => {
if (user) {
this.username = user.short_name;
} else {
this.username = translate.instant('Guest');
}
this.isLoggedIn = !!user;
});
this.searchform = new FormGroup({ query: new FormControl([]) });
}
/**
* Initialize the site component
*/
public ngOnInit(): void {
this.vp.checkForChange();
// observe the mainMenuService to receive toggle-requests
this.mainMenuService.toggleMenuSubject.subscribe((value: void) => this.toggleSideNav());
// get a translation via code: use the translation service
// this.translate.get('Motions').subscribe((res: string) => {
// console.log('translation of motions in the target language: ' + res);
// });
this.router.events.subscribe(event => {
// Scroll to top if accessing a page, not via browser history stack
if (event instanceof NavigationEnd) {
const contentContainer = document.querySelector('.mat-sidenav-content');
if (contentContainer) {
contentContainer.scrollTo(0, 0);
}
}
});
}
/**
* Toggles the side nav
*/
public toggleSideNav(): void {
this.sideNav.toggle();
}
/**
* Automatically close the navigation in while navigating in mobile mode
*/
public mobileAutoCloseNav(): void {
if (this.vp.isMobile) {
this.sideNav.close();
}
}
/**
* Let the user change the language
* @param lang the desired language (en, de, cs, ...)
*/
public selectLang(selection: string): void {
this.translate.use(selection).subscribe();
}
/**
* Get the name of a Language by abbreviation.
*/
public getLangName(abbreviation: string): string {
if (abbreviation === 'en') {
return 'English';
} else if (abbreviation === 'de') {
return 'Deutsch';
} else if (abbreviation === 'cs') {
return 'Čeština';
}
}
/**
* Function to log out the current user
*/
public logout(): void {
this.authService.logout();
}
/**
* Handle swipes and gestures
*/
public swipe(e: TouchEvent, when: string): void {
const coord: [number, number] = [e.changedTouches[0].pageX, e.changedTouches[0].pageY];
const time = new Date().getTime();
if (when === 'start') {
this.swipeCoord = coord;
this.swipeTime = time;
} else if (when === 'end') {
const direction = [coord[0] - this.swipeCoord[0], coord[1] - this.swipeCoord[1]];
const duration = time - this.swipeTime;
if (
duration < 1000 &&
Math.abs(direction[0]) > 30 && // swipe length to be detected
Math.abs(direction[0]) > Math.abs(direction[1] * 3) // 30° should be "horizontal enough"
) {
// definition of a "swipe right" gesture to move in the navigation
// only works in the far left edge of the screen
if (
direction[0] > 0 && // swipe left to right
this.swipeCoord[0] < 20
) {
this.sideNav.open();
}
// definition of a "swipe left" gesture to remove the navigation
// should only work in mobile mode to prevent unwanted closing of the nav
// works anywhere on the screen
if (
direction[0] < 0 && // swipe left to right
this.vp.isMobile
) {
this.sideNav.close();
}
}
}
}
/**
* Handler for the search bar
*/
public search(): void {
const query = this.searchform.get('query').value;
this.searchform.reset();
this.router.navigate(['/search'], { queryParams: { query: query } });
}
/**
* Get the timestamp for the current point in history mode.
* Tries to detect the ideal timestamp format using the translation service
*
* @returns the timestamp as string
*/
public getHistoryTimestamp(): string {
return this.OSStatus.getHistoryTimeStamp(langToLocale(this.translate.currentLang));
}
}