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

121 lines
3.1 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 * as ModalActionCreators from '~/actions/ModalActionCreators';
import * as PopoutActionCreators from '~/actions/PopoutActionCreators';
import type {PopoutKey} from '~/components/uikit/Popout';
type LayerType = 'modal' | 'popout' | 'contextmenu';
export interface Layer {
type: LayerType;
key: string | PopoutKey;
timestamp: number;
onClose?: () => void;
}
class LayerManager {
private layers: Array<Layer> = [];
private isInitialized = false;
init() {
if (this.isInitialized) return;
this.isInitialized = true;
document.addEventListener('keydown', this.handleGlobalEscape, {capture: true});
}
destroy() {
if (!this.isInitialized) return;
this.isInitialized = false;
document.removeEventListener('keydown', this.handleGlobalEscape, {capture: true});
this.layers = [];
}
private handleGlobalEscape = (event: KeyboardEvent) => {
if (event.key !== 'Escape') return;
const topLayer = this.getTopLayer();
if (!topLayer) return;
event.preventDefault();
event.stopPropagation();
if (topLayer.type === 'modal') {
if (topLayer.onClose) {
topLayer.onClose();
} else {
ModalActionCreators.pop();
}
} else if (topLayer.type === 'popout') {
topLayer.onClose?.();
this.removeLayer('popout', topLayer.key);
PopoutActionCreators.close(topLayer.key);
} else if (topLayer.type === 'contextmenu') {
topLayer.onClose?.();
}
};
addLayer(type: LayerType, key: string | PopoutKey, onClose?: () => void) {
this.removeLayer(type, key);
this.layers.push({
type,
key,
timestamp: Date.now(),
onClose,
});
}
removeLayer(type: LayerType, key: string | PopoutKey) {
this.layers = this.layers.filter((layer) => !(layer.type === type && layer.key === key));
}
private getTopLayer(): Layer | undefined {
return this.layers.length > 0 ? this.layers[this.layers.length - 1] : undefined;
}
hasLayers(): boolean {
return this.layers.length > 0;
}
isTopLayer(type: LayerType, key: string | PopoutKey): boolean {
const topLayer = this.getTopLayer();
return topLayer?.type === type && topLayer?.key === key;
}
hasType(type: LayerType): boolean {
return this.layers.some((l) => l.type === type);
}
isTopType(type: LayerType): boolean {
const top = this.getTopLayer();
return top?.type === type;
}
closeAll(): void {
ModalActionCreators.popAll();
PopoutActionCreators.closeAll();
this.layers = [];
}
}
export default new LayerManager();