[ Fixed Issue #667 ] Add Google and Unsplash terms links to experimental/desktop_photo_search (#678)

Author: SatYu26

experimental/desktop_photo_search/lib/main.dart

@@ -15,6 +15,7 @@ import 'package:provider/provider.dart';
 
 import 'src/model/photo_search_model.dart';
 import 'src/unsplash/unsplash.dart';
+import 'src/widgets/about_dialog.dart';
 import 'src/widgets/photo_details.dart';
 import 'src/widgets/photo_search_dialog.dart';
 import 'src/widgets/split.dart';
@@ -75,6 +76,17 @@ class UnsplashHomePage extends StatelessWidget {
             );
           },
         ),
+      ]),
+      menubar.Submenu(label: 'About', children: [
+        menubar.MenuItem(
+          label: 'About ...',
+          onClicked: () {
+            showDialog<void>(
+                context: context,
+                builder: (context) => PolicyDialog(),
+            );
+          },
+        ),
       ])
     ]);
 

experimental/desktop_photo_search/lib/src/widgets/about_dialog.dart

@@ -0,0 +1,98 @@
+// Copyright 2019 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter/gestures.dart';
+import 'package:flutter/material.dart';
+import 'package:url_launcher/url_launcher.dart' as url_launcher;
+
+class PolicyDialog extends StatelessWidget {
+  PolicyDialog({
+    Key key,
+    this.radius = 8,
+  }) : super(key: key);
+
+  final double radius;
+
+  @override
+  Widget build(BuildContext context) {
+    return AlertDialog(
+      shape:
+          RoundedRectangleBorder(borderRadius: BorderRadius.circular(radius)),
+      content: Builder(
+        builder: (context) {
+          var height = MediaQuery.of(context).size.height;
+          var width = MediaQuery.of(context).size.width;
+          return Container(
+            height: height / 4,
+            width: width / 4,
+            child: Column(
+              mainAxisAlignment: MainAxisAlignment.center,
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                RichText(
+                  textAlign: TextAlign.center,
+                  text: TextSpan(
+                    text: 'Terms & Conditions:\n',
+                    style: Theme.of(context).textTheme.headline5,
+                  ),
+                ),
+                RichText(
+                  textAlign: TextAlign.left,
+                  text: TextSpan(
+                    text: '• ',
+                    style: TextStyle(color: Colors.black, fontSize: 18),
+                    children: <TextSpan>[
+                      TextSpan(
+                        text: 'https://policies.google.com/terms',
+                        style: TextStyle(fontWeight: FontWeight.bold, color: Colors.lightBlue),
+                        recognizer: TapGestureRecognizer()
+                          ..onTap = () async {
+                            final url = 'https://policies.google.com/terms';
+                            if (await url_launcher.canLaunch(url)) {
+                              await url_launcher.launch(url);
+                            }
+                          },
+                      )
+                    ],
+                  ),
+                ),
+                RichText(
+                  textAlign: TextAlign.left,
+                  text: TextSpan(
+                    text: '• ',
+                    style: TextStyle(color: Colors.black, fontSize: 18),
+                    children: <TextSpan>[
+                      TextSpan(
+                        text: 'https://unsplash.com/terms',
+                        style: TextStyle(fontWeight: FontWeight.bold, color: Colors.lightBlue),
+                        recognizer: TapGestureRecognizer()
+                          ..onTap = () async {
+                            final url = 'https://unsplash.com/terms';
+                            if (await url_launcher.canLaunch(url)) {
+                              await url_launcher.launch(url);
+                            }
+                          },
+                      )
+                    ],
+                  ),
+                ),
+              ],
+            ),
+          );
+        },
+      ),
+      actions: <Widget>[
+        TextButton(
+          onPressed: () {
+            Navigator.of(context).pop();
+          },
+          child: Text(
+            'CLOSE'.toUpperCase(),
+            style: TextStyle(fontSize: 20),
+          ),
+        ),
+      ],
+    );
+  }
+}

experimental/desktop_photo_search/pubspec.lock

@@ -739,4 +739,4 @@ packages:
     version: "2.2.1"
 sdks:
   dart: ">=2.12.0-0.0 <3.0.0"
-  flutter: ">=1.22.0 <2.0.0"
+  flutter: ">=1.22.0"

experimental/desktop_photo_search/windows/flutter/CMakeLists.txt

@@ -91,6 +91,7 @@ add_custom_command(
     ${FLUTTER_TOOL_ENVIRONMENT}
     "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.bat"
       windows-x64 $<CONFIG>
+  VERBATIM
 )
 add_custom_target(flutter_assemble DEPENDS
   "${FLUTTER_LIBRARY}"