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lib/ui/dialogs/screen_dialog.dart

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+import 'dart:math';
+
+import 'package:comunic/utils/ui_utils.dart';
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+
+/// Screen dialog
+///
+/// @author Pierre Hubert
+
+/// Show a screen dialog
+///
+/// This widget automatically adapt himself if we are in tablet
+/// or in mobile mode
+Future<T> showScreenDialog<T>(BuildContext context, Widget screen) async {
+  // TODO : add mobile support
+  if (!isTablet(context)) throw Exception("Unsupported mode!");
+
+  return await showDialog(
+      context: context, builder: (c) => _ScreenDialog(body: screen));
+}
+
+class _ScreenDialog extends StatelessWidget {
+  final Widget body;
+
+  const _ScreenDialog({Key key, this.body}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    final size = MediaQuery.of(context).size;
+    final width = min(500.0, size.width - 50);
+    final height = min(800.0, size.height - 50);
+
+    return AlertDialog(
+      contentPadding: EdgeInsets.all(0.0),
+      content: Container(
+        width: width,
+        height: height,
+        child: body,
+      ),
+    );
+  }
+}