playground/frontend/lib/pages/standalone_playground/screen.dart

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import 'package:flutter/material.dart';
import 'package:playground_components/playground_components.dart';

import '../../components/logo/logo_component.dart';
import '../../constants/sizes.dart';
import '../../modules/actions/components/new_example.dart';
import '../../modules/actions/components/reset.dart';
import '../../modules/examples/example_selector.dart';
import '../../modules/sdk/components/sdk_selector.dart';
import '../../modules/shortcuts/components/shortcuts_manager.dart';
import 'state.dart';
import 'widgets/more_actions.dart';
import 'widgets/playground_page_body.dart';
import 'widgets/playground_page_footer.dart';
import 'widgets/playground_page_providers.dart';

class StandalonePlaygroundScreen extends StatelessWidget {
  // TODO: calculate sum of widths of all app bar buttons at the first frame.
  // https://github.com/apache/beam/issues/25524
  // To get value manually print window width and check when app bar buttons
  // will span 2 lines
  static const kAppBarButtonsWidth = 1105;
  final StandalonePlaygroundNotifier notifier;

  const StandalonePlaygroundScreen(this.notifier);

  @override
  Widget build(BuildContext context) {
    return PlaygroundPageProviders(
      playgroundController: notifier.playgroundController,
      child: PlaygroundShortcutsManager(
        playgroundController: notifier.playgroundController,
        child: AnimatedBuilder(
          animation: notifier.playgroundController,
          builder: (context, child) {
            final snippetController =
                notifier.playgroundController.snippetEditingController;

            return Scaffold(
              appBar: AppBar(
                automaticallyImplyLeading: false,
                toolbarHeight:
                    MediaQuery.of(context).size.width > kAppBarButtonsWidth
                        ? kToolbarHeight
                        : 2 * kToolbarHeight,
                title: Wrap(
                  crossAxisAlignment: WrapCrossAlignment.center,
                  spacing: kXlSpacing,
                  children: [
                    const Logo(),
                    AnimatedBuilder(
                      animation: notifier.playgroundController.exampleCache,
                      builder: (context, child) => ExampleSelector(
                        isSelectorOpened: notifier
                            .playgroundController.exampleCache.isSelectorOpened,
                        playgroundController: notifier.playgroundController,
                      ),
                    ),
                    SDKSelector(
                      value: notifier.playgroundController.sdk,
                      onChanged: (newSdk) {
                        PlaygroundComponents.analyticsService.sendUnawaited(
                          SdkSelectedAnalyticsEvent(
                            sdk: newSdk,
                          ),
                        );
                        notifier.playgroundController.setSdk(newSdk);
                      },
                    ),
                    if (snippetController != null)
                      PipelineOptionsDropdown(
                        pipelineOptions: snippetController.pipelineOptions,
                        setPipelineOptions:
                            notifier.playgroundController.setPipelineOptions,
                      ),
                    const NewExampleButton(),
                    const PlaygroundResetButton(),
                  ],
                ),
                actions: [
                  const ToggleThemeButton(),
                  MoreActions(
                    playgroundController: notifier.playgroundController,
                  ),
                ],
              ),
              body: Column(
                children: [
                  const Expanded(child: PlaygroundPageBody()),
                  Semantics(
                    container: true,
                    child: const PlaygroundPageFooter(),
                  ),
                ],
              ),
            );
          },
        ),
      ),
    );
  }
}