Implement first-run wizard.

zaaReloaded2/ViewModels/FirstRunViewModel.cs

@@ -0,0 +1,140 @@
+/* FirstRunViewModel.cs
+ * part of zaaReloaded2
+ * 
+ * Copyright 2015 Daniel Kraus
+ * 
+ * Licensed 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.
+ */
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Bovender.Mvvm;
+using Bovender.Mvvm.ViewModels;
+
+namespace zaaReloaded2.ViewModels
+{
+    /// <summary>
+    /// View model for the first-run wizard
+    /// </summary>
+    class FirstRunViewModel : ViewModelBase
+    {
+        #region Static method
+
+        /// <summary>
+        /// If the first-run wizard hasn't been shown to this user
+        /// yet, creates a new instance of FirstRunViewModel,
+        /// injects it into the view T and shows the view.
+        /// </summary>
+        /// <typeparam name="T">Window to inject the view model into.</typeparam>
+        public static void InjectIntoIfNeeded<T>()
+            where T: System.Windows.Window, new()
+        {
+            if (!Properties.Settings.Default.FirstRunWizardShown)
+            {
+                FirstRunViewModel vm = new FirstRunViewModel();
+                vm.InjectInto<T>().Show();
+            }
+        }
+
+        #endregion
+
+        #region Commands
+
+        public DelegatingCommand SelectDoctorsModeCommand
+        {
+            get
+            {
+                if (_selectDoctorsModeCommand == null)
+                {
+                    _selectDoctorsModeCommand = new DelegatingCommand(
+                        param => DoSelectDoctorsMode());
+                }
+                return _selectDoctorsModeCommand;
+            }
+        }
+
+        public DelegatingCommand SelectTypistsModeCommand
+        {
+            get
+            {
+                if (_selectTypistsModeCommand == null)
+                {
+                    _selectTypistsModeCommand = new DelegatingCommand(
+                        param => DoSelectTypistsMode());
+                }
+                return _selectTypistsModeCommand;
+            }
+        }
+        
+        #endregion
+
+        #region Constructor
+
+        /// <summary>
+        /// Private constructor to enforce using the static
+        /// </summary>
+        private FirstRunViewModel() : base() { }
+
+        #endregion
+
+        #region Private methods
+
+        void DoSelectDoctorsMode()
+        {
+            // Properties will be saved by the DoCloseView override.
+            Properties.Settings.Default.SuppressItemCommentInteraction = false;
+            CloseViewCommand.Execute(null);
+        }
+
+        void DoSelectTypistsMode()
+        {
+            // Properties will be saved by the DoCloseView override.
+            Properties.Settings.Default.SuppressItemCommentInteraction = true;
+            CloseViewCommand.Execute(null);
+        }
+
+        #endregion
+
+        #region Overrides
+
+        /// <summary>
+        /// Sets the FirstRunWizardShown property of the assembly properties
+        /// to true and calls the base function to close the associated view.
+        /// </summary>
+        protected override void DoCloseView()
+        {
+            Properties.Settings.Default.FirstRunWizardShown = true;
+            Properties.Settings.Default.Save();
+            base.DoCloseView();
+        }
+
+        #endregion
+
+        #region Implementation of ViewModelBase
+
+        public override object RevealModelObject()
+        {
+            throw new NotImplementedException();
+        }
+
+        #endregion
+
+        #region Fields
+
+        DelegatingCommand _selectDoctorsModeCommand;
+        DelegatingCommand _selectTypistsModeCommand;
+
+        #endregion
+    }
+}