front_end/ui/components/docs/data_grid_controller/basic.ts

// Copyright 2020 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import * as EnvironmentHelpers from '../../../../../test/unittests/front_end/helpers/EnvironmentHelpers.js';
import * as DataGrid from '../../data_grid/data_grid.js';
import * as ComponentHelpers from '../../helpers/helpers.js';

await EnvironmentHelpers.initializeGlobalVars();
await ComponentHelpers.ComponentServerSetup.setup();

const component = new DataGrid.DataGridController.DataGridController();

component.data = {
  columns: [
    {id: 'key', title: 'Key', sortable: true, widthWeighting: 1, visible: true, hideable: false},
    {id: 'value', title: 'Value', sortable: true, widthWeighting: 1, visible: true, hideable: true},
  ],
  rows: [
    // Each key is the ID of a column, and the value is the value for that column
    {cells: [{columnId: 'key', value: 'Bravo', title: 'Bravo'}, {columnId: 'value', value: 'Letter B'}]},
    {cells: [{columnId: 'key', value: 'Alpha', title: 'Alpha'}, {columnId: 'value', value: 'Letter A'}]},
    {cells: [{columnId: 'key', value: 'Charlie', title: 'Charlie'}, {columnId: 'value', value: 'Letter C'}]},
  ],
};

document.getElementById('container')?.appendChild(component);

function createRandomString(): string {
  let ret = '';
  for (let i = 0; i < 16; i++) {
    const letter = String.fromCharCode(Math.floor(65 + Math.random() * 26));
    ret += letter;
  }
  return ret;
}
document.getElementById('add')?.addEventListener('click', () => {
  const newRow = {
    cells: [{columnId: 'key', value: createRandomString()}, {columnId: 'value', value: createRandomString()}],
  };
  component.data = {
    ...component.data,
    rows: [...component.data.rows, newRow],
  };
});