gristlabs_grist-core/app/client/ui/ThemeConfig.ts

import {AppModel} from 'app/client/models/AppModel';
import * as css from 'app/client/ui/AccountPageCss';
import {labeledSquareCheckbox} from 'app/client/ui2018/checkbox';
import {select} from 'app/client/ui2018/menus';
import {ThemeAppearance} from 'app/common/ThemePrefs';
import {Computed, Disposable, dom, makeTestId, styled} from 'grainjs';

const testId = makeTestId('test-theme-config-');

export class ThemeConfig extends Disposable {
  private _themePrefs = this._appModel.themePrefs;

  private _appearance = Computed.create(this, this._themePrefs, (_use, prefs) => {
    return prefs.appearance;
  }).onWrite((value) => this._updateAppearance(value));

  private _syncWithOS = Computed.create(this, this._themePrefs, (_use, prefs) => {
    return prefs.syncWithOS;
  }).onWrite((value) => this._updateSyncWithOS(value));

  constructor(private _appModel: AppModel) {
    super();
  }

  public buildDom() {
    return dom('div',
      css.subHeader('Appearance ', css.betaTag('Beta')),
      css.dataRow(
        cssAppearanceSelect(
          select(
            this._appearance,
            [
              {value: 'light', label: 'Light'},
              {value: 'dark', label: 'Dark'},
            ],
          ),
          testId('appearance'),
        ),
      ),
      css.dataRow(
        labeledSquareCheckbox(
          this._syncWithOS,
          'Switch appearance automatically to match system',
          testId('sync-with-os'),
        ),
      ),
      testId('container'),
    );
  }

  private _updateAppearance(appearance: ThemeAppearance) {
    this._themePrefs.set({...this._themePrefs.get(), appearance});
  }

  private _updateSyncWithOS(syncWithOS: boolean) {
    this._themePrefs.set({...this._themePrefs.get(), syncWithOS});
  }
}

const cssAppearanceSelect = styled('div', `
  width: 120px;
`);