dockview-core/dist/esm/dockview/watermarkService.js

Zero dependency layout manager supporting tabs, groups, grids and splitviews for vanilla TypeScript

import { CompositeDisposable } from '../lifecycle';
import { addTestId } from '../dom';
import { Event } from '../events';
import { defineModule } from './modules';
export class WatermarkService {
    constructor(host) {
        this._watermark = null;
        this._host = host;
    }
    update() {
        if (this._host.hasVisibleGridGroup()) {
            this._unmount();
            return;
        }
        if (this._watermark) {
            return;
        }
        this._watermark = this._host.createWatermarkComponent();
        this._watermark.init({ containerApi: this._host.api });
        const container = document.createElement('div');
        container.className = 'dv-watermark-container';
        addTestId(container, 'watermark-component');
        container.appendChild(this._watermark.element);
        this._host.mountElement.appendChild(container);
    }
    refresh() {
        this._unmount();
        this.update();
    }
    _unmount() {
        var _a, _b;
        if (!this._watermark) {
            return;
        }
        this._watermark.element.parentElement.remove();
        (_b = (_a = this._watermark).dispose) === null || _b === void 0 ? void 0 : _b.call(_a);
        this._watermark = null;
    }
    dispose() {
        this._unmount();
    }
}
export const WatermarkModule = defineModule({
    name: 'Watermark',
    serviceKey: 'watermarkService',
    create: (host) => new WatermarkService(host),
    init: (host, service) => {
        // Initial evaluation reflects the watermark state at construction time.
        service.update();
        return new CompositeDisposable(Event.any(host.onDidAdd, host.onDidRemove)(() => {
            service.update();
        }), host.onDidViewVisibilityChangeMicroTaskQueue(() => {
            service.update();
        }));
    },
});