refactor<*>: rewrite all codes...

src/Views/Validations/RemoteName.cs

@@ -0,0 +1,31 @@
+using System.Globalization;
+using System.Text.RegularExpressions;
+using System.Windows.Controls;
+
+namespace SourceGit.Views.Validations {
+    public class RemoteName : ValidationRule {
+        private static readonly Regex REG_FORMAT = new Regex(@"^[\w\-\.]+$");
+
+        public Models.Repository Repo { get; set; }
+        public bool IsOptional { get; set; }
+
+        public override ValidationResult Validate(object value, CultureInfo cultureInfo) {
+            var name = value as string;
+            if (string.IsNullOrEmpty(name)) {
+                return IsOptional ? ValidationResult.ValidResult : new ValidationResult(false, App.Text("EmptyRemoteName"));
+            }
+
+            if (!REG_FORMAT.IsMatch(name)) return new ValidationResult(false, App.Text("BadRemoteName"));
+
+            if (Repo != null) {
+                foreach (var t in Repo.Remotes) {
+                    if (t.Name == name) {
+                        return new ValidationResult(false, App.Text("DuplicatedRemoteName"));
+                    }
+                }
+            }
+
+            return ValidationResult.ValidResult;
+        }
+    }
+}