Start to display banner

lib/ui/widgets/banner_widget.dart

@@ -0,0 +1,89 @@
+import 'package:comunic/helpers/server_config_helper.dart';
+import 'package:comunic/models/server_config.dart';
+import 'package:comunic/utils/intl_utils.dart';
+import 'package:flutter/material.dart';
+import 'package:url_launcher/url_launcher.dart';
+
+bool _bannerDismissed = false;
+
+class BannerWidget extends StatefulWidget {
+  const BannerWidget({Key key}) : super(key: key);
+
+  @override
+  _BannerWidgetState createState() => _BannerWidgetState();
+}
+
+class _BannerWidgetState extends State<BannerWidget> {
+  void _hideBanner() {
+    setState(() => _bannerDismissed = true);
+  }
+
+  void _openLink() {
+    launch(srvConfig.banner.link);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    if (!showBanner || _bannerDismissed) return Container();
+
+    final banner = srvConfig.banner;
+    return Card(
+      color: banner.nature == BannerNature.Information
+          ? Colors.blue
+          : banner.nature == BannerNature.Success
+              ? Colors.green
+              : Colors.red,
+      child: Padding(
+        padding: const EdgeInsets.all(2.0),
+        child: Row(
+          children: [
+            BannerButton(
+              icon: Icon(
+                banner.nature == BannerNature.Information
+                    ? Icons.info
+                    : banner.nature == BannerNature.Success
+                        ? Icons.check
+                        : Icons.warning,
+              ),
+            ),
+            Flexible(
+              child: Text(
+                banner.message.containsKey(lang())
+                    ? banner.message[lang()]
+                    : banner.message["en"],
+                style: TextStyle(color: Colors.white),
+              ),
+            ),
+            banner.link == null
+                ? Container()
+                : BannerButton(
+                    onPressed: _openLink,
+                    icon: Icon(Icons.open_in_new),
+                  ),
+            BannerButton(
+              onPressed: _hideBanner,
+              icon: Icon(Icons.close),
+            )
+          ],
+        ),
+      ),
+    );
+  }
+}
+
+class BannerButton extends StatelessWidget {
+  final Function() onPressed;
+  final Widget icon;
+
+  const BannerButton({this.onPressed, this.icon, Key key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return IconButton(
+      onPressed: onPressed,
+      icon: icon,
+      disabledColor: Colors.white,
+      padding: EdgeInsets.all(1.0),
+    );
+  }
+}