fluxer/fluxer_app/src/stores/MobileLayoutStore.tsx
2026-01-01 21:05:54 +00:00

125 lines
3.2 KiB
TypeScript

/*
* Copyright (C) 2026 Fluxer Contributors
*
* This file is part of Fluxer.
*
* Fluxer is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Fluxer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
*/
import {makeAutoObservable, reaction} from 'mobx';
import {makePersistent} from '~/lib/MobXPersistence';
import {Platform} from '~/lib/Platform';
import WindowStore from '~/stores/WindowStore';
const MOBILE_ENABLE_BREAKPOINT = 640;
const MOBILE_DISABLE_BREAKPOINT = 768;
const shouldForceMobileLayout = (): boolean => Platform.isMobileBrowser;
const getInitialMobileEnabled = (): boolean => {
if (shouldForceMobileLayout()) {
return true;
}
return window.innerWidth < MOBILE_ENABLE_BREAKPOINT;
};
class MobileLayoutStore {
navExpanded = true;
chatExpanded = false;
enabled = getInitialMobileEnabled();
constructor() {
makeAutoObservable(this, {}, {autoBind: true});
this.initPersistence();
this.initWindowSync();
}
private async initPersistence(): Promise<void> {
await makePersistent(this, 'MobileLayoutStore', ['navExpanded', 'chatExpanded']);
}
private initWindowSync(): void {
this.handleWindowSizeChange();
reaction(
() => WindowStore.windowSize,
() => this.handleWindowSizeChange(),
{fireImmediately: false},
);
}
isEnabled() {
return this.enabled;
}
private handleWindowSizeChange(): void {
const windowSize = WindowStore.windowSize;
const forceMobile = shouldForceMobileLayout();
const threshold = this.enabled ? MOBILE_DISABLE_BREAKPOINT : MOBILE_ENABLE_BREAKPOINT;
const widthBased = windowSize.width < threshold;
const newEnabled = forceMobile || widthBased;
if (newEnabled === this.enabled) {
return;
}
this.enabled = newEnabled;
if (newEnabled) {
this.navExpanded = this.navExpanded && !this.chatExpanded;
}
}
updateState(data: {navExpanded?: boolean; chatExpanded?: boolean}): void {
const hasChanges =
(data.navExpanded !== undefined && data.navExpanded !== this.navExpanded) ||
(data.chatExpanded !== undefined && data.chatExpanded !== this.chatExpanded);
if (!hasChanges) {
return;
}
if (data.navExpanded !== undefined) {
this.navExpanded = data.navExpanded;
if (data.navExpanded && this.enabled && this.chatExpanded) {
this.chatExpanded = false;
}
}
if (data.chatExpanded !== undefined) {
this.chatExpanded = data.chatExpanded;
if (data.chatExpanded && this.enabled && this.navExpanded) {
this.navExpanded = false;
}
}
}
isMobileLayout(): boolean {
return this.enabled;
}
get platformMobileDetected(): boolean {
return shouldForceMobileLayout();
}
isNavExpanded(): boolean {
return this.navExpanded;
}
isChatExpanded(): boolean {
return this.chatExpanded;
}
}
export default new MobileLayoutStore();