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Sai.RvKits Setup/Dialogs/FeaturesDialog.xaml.cs
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Sai.RvKits Setup/Dialogs/FeaturesDialog.xaml.cs
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using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Diagnostics;
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using System.IO;
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using System.Linq;
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using System.Windows.Media.Imaging;
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using Caliburn.Micro;
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using WixSharp;
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using WixSharp.UI.Forms;
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using WixSharp.UI.WPF;
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namespace Sai.RvKits_Setup
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{
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/// <summary>
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/// The standard FeaturesDialog.
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/// <para>Follows the design of the canonical Caliburn.Micro View (MVVM).</para>
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/// <para>See https://caliburnmicro.com/documentation/cheat-sheet</para>
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/// </summary>
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/// <seealso cref="WixSharp.UI.WPF.WpfDialog" />
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/// <seealso cref="WixSharp.IWpfDialog" />
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/// <seealso cref="System.Windows.Markup.IComponentConnector" />
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public partial class FeaturesDialog : WpfDialog, IWpfDialog
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{
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/// <summary>
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/// Initializes a new instance of the <see cref="FeaturesDialog"/> class.
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/// </summary>
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public FeaturesDialog()
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{
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InitializeComponent();
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}
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/// <summary>
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/// This method is invoked by WixSHarp runtime when the custom dialog content is internally fully initialized.
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/// This is a convenient place to do further initialization activities (e.g. localization).
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/// </summary>
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public void Init()
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{
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ViewModelBinder.Bind(new FeaturesDialogModel(ManagedFormHost), this, null);
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}
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}
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/// <summary>
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/// ViewModel of the feature tree node.
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/// </summary>
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/// <seealso cref="Caliburn.Micro.PropertyChangedBase" />
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internal class Node : PropertyChangedBase
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{
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private bool @checked;
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public string Name { get; set; }
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public ObservableCollection<Node> Nodes { get; set; } // with list and observable collection same results
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public bool Checked { get => @checked; set { @checked = value; NotifyOfPropertyChange(() => Checked); } }
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public bool DefaultChecked { get; set; }
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public object Data { get; set; }
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public bool IsEditable { get; set; } = true;
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}
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/// <summary>
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/// ViewModel for standard FeaturesDialog.
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/// <para>Follows the design of the canonical Caliburn.Micro ViewModel (MVVM).</para>
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/// <para>See https://caliburnmicro.com/documentation/cheat-sheet</para>
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/// </summary>
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/// <seealso cref="Caliburn.Micro.Screen" />
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internal class FeaturesDialogModel : Caliburn.Micro.Screen
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{
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ManagedForm Host;
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ISession session => Host?.Runtime.Session;
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IManagedUIShell shell => Host?.Shell;
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string selectedNodeDescription;
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public ObservableCollection<Node> RootNodes { get; set; } = new ObservableCollection<Node>();
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public FeaturesDialogModel(ManagedForm host)
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{
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this.Host = host;
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BuildFeaturesHierarchy();
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}
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public BitmapImage Banner => session?.GetResourceBitmap("WixSharpUI_Bmp_Banner").ToImageSource();
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public string SelectedNodeDescription
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{
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get => selectedNodeDescription;
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set { selectedNodeDescription = value; NotifyOfPropertyChange(() => SelectedNodeDescription); }
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}
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/// <summary>
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/// The collection of the features selected by user as the features to be installed.
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/// </summary>
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public static List<string> UserSelectedItems { get; set; }
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/// <summary>
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/// The initial/default set of selected items (features) before user made any selection(s).
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/// </summary>
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static List<string> InitialUserSelectedItems { get; set; }
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public void GoPrev()
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{
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SaveUserSelection();
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shell?.GoPrev();
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}
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/*https://msdn.microsoft.com/en-us/library/aa367536(v=vs.85).aspx
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* ADDLOCAL - list of features to install
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* REMOVE - list of features to uninstall
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* ADDDEFAULT - list of features to set to their default state
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* REINSTALL - list of features to repair*/
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public void GoNext()
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{
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if (Host == null) return;
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bool userChangedFeatures = UserSelectedItems?.JoinBy(",") != InitialUserSelectedItems.JoinBy(",");
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if (userChangedFeatures)
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{
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string itemsToInstall = features.Where(x => (x.View as Node).Checked)
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.Select(x => x.Name)
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.JoinBy(",");
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string itemsToRemove = features.Where(x => !(x.View as Node).Checked)
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.Select(x => x.Name)
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.JoinBy(",");
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if (itemsToRemove.Any())
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session["REMOVE"] = itemsToRemove;
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if (itemsToInstall.Any())
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session["ADDLOCAL"] = itemsToInstall;
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}
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else
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{
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session["REMOVE"] = "";
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session["ADDLOCAL"] = "";
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}
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SaveUserSelection();
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shell.GoNext();
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}
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public void Cancel()
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=> shell?.Cancel();
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public void Reset()
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{
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features.ForEach(x => (x.View as Node).Checked = x.DefaultIsToBeInstalled());
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}
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FeatureItem[] features;
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void BuildFeaturesHierarchy()
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{
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features = session.Features; // must make a copy of the features as they cannot be modified in the session
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// build the hierarchy tree
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var visibleRootItems = features.Where(x => x.ParentName.IsEmpty())
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.OrderBy(x => x.RawDisplay)
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.ToArray();
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var itemsToProcess = new Queue<FeatureItem>(visibleRootItems); // features to find the children for
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while (itemsToProcess.Any())
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{
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var item = itemsToProcess.Dequeue();
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// create the view of the feature
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var view = new Node
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{
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Name = item.Title,
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Data = item, // link view to model
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IsEditable = !item.DisallowAbsent,
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DefaultChecked = item.DefaultIsToBeInstalled(),
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Checked = item.DefaultIsToBeInstalled()
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};
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item.View = view; // link model to view
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if (item.Parent != null && item.Display != FeatureDisplay.hidden)
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(item.Parent.View as Node).Nodes.Add(view); //link child view to parent view
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// even if the item is hidden process all its children so the correct hierarchy is established
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// find all children
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features.Where(x => x.ParentName == item.Name)
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.ForEach(c =>
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{
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c.Parent = item; //link child model to parent model
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itemsToProcess.Enqueue(c); //schedule for further processing
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});
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if (UserSelectedItems != null)
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view.Checked = UserSelectedItems.Contains((view.Data as FeatureItem).Name);
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}
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// add views to the treeView control
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visibleRootItems
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.Where(x => x.Display != FeatureDisplay.hidden)
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.Select(x => (Node)x.View)
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.ForEach(node => RootNodes.Add(node));
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InitialUserSelectedItems = features.Where(x => (x.View as Node).Checked)
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.Select(x => x.Name)
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.OrderBy(x => x)
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.ToList();
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}
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void SaveUserSelection()
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{
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UserSelectedItems = features.Where(x => x.IsViewChecked())
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.Select(x => x.Name)
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.OrderBy(x => x)
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.ToList();
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}
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}
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}
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