Add Eupm Constant

src/main/Port.Adapter/UI/ViewModels/TreeNeuronViewModel.cs

@@ -29,14 +29,16 @@ public TreeNeuronViewModel(
             Neuron neuron,
             string avatarUrl,
             INeuronQueryService neuronQueryService,
-            IEnumerable<MirrorConfigFile> mirrorConfigFiles
+            IEnumerable<MirrorConfigFile> mirrorConfigFiles,
+            int rootIndex = 0
         )
         {
             this.Neuron = neuron;
             this.avatarUrl = avatarUrl;
             this.neuronQueryService = neuronQueryService;
             this.mirrorConfigFiles = mirrorConfigFiles;
             this.Children = new List<TreeNeuronViewModel>();
+            this.RootIndex = rootIndex;
         }
 
         public IList<TreeNeuronViewModel> Children { get; set; }
@@ -45,6 +47,8 @@ IEnumerable<MirrorConfigFile> mirrorConfigFiles
 
         public ExpansionState ExpansionState { get; private set; }
 
+        public int RootIndex { get; set; }
+
         public ExpansionType CurrentExpansionType => this.currentExpansionType;
 
         public async Task Toggle()
@@ -69,7 +73,8 @@ public async Task Toggle()
                             new Neuron(n),
                             this.avatarUrl,
                             this.neuronQueryService,
-                            this.mirrorConfigFiles
+                            this.mirrorConfigFiles,
+                            this.RootIndex
                         ))
                     );
 
@@ -83,9 +88,7 @@ public void ConfigureExpansionTimer(Timer timer, ExpansionType type, double inte
         {
             if (timer == null)
                 throw new ArgumentNullException(nameof(timer));
-
-            this.expansionTimer = timer;            
-
+            this.expansionTimer = timer;
             this.currentExpansionType = type;
             this.expansionTimer.Interval = interval;
             this.expansionTimer.Elapsed -= handler;

src/main/Port.Adapter/UI/Views/Blazor.Common/TreeView.razor

@@ -1,6 +1,7 @@
 @using Blazorise
 @using Blazorise.Icons.FontAwesome
 @using Microsoft.JSInterop
+@using Microsoft.AspNetCore.Components.Web
 @using ei8.Cortex.Diary.Application.Neurons
 @using ei8.Cortex.Diary.Port.Adapter.UI.ViewModels
 
@@ -11,7 +12,7 @@
         @foreach (var child in this.Children)
         {
             string currentAuthor = (child.Neuron.Creation?.Author?.Tag + ((child.Neuron.Creation?.Author?.Id != child.Neuron.UnifiedLastModification?.Author?.Id) ? ", " + child.Neuron.UnifiedLastModification.Author.Tag : string.Empty));
-            <li class="p-0 my-1" style="list-style-type: none;">
+            <li class="p-0 my-1" style="@GetBackgroundColorStyle(child)">
                 <div class="container-fluid m-0" style="@this.GetJustifyStyle(child)">
                     @{var tagUrlType = this.GetUrlType(child.Neuron.Tag);}
                     <div class="row" style=@(tagUrlType == UrlType.GoogleDriveImage ? "max-width: 70%" : string.Empty)>
@@ -44,13 +45,13 @@
                                 }
                                 @if (@child.ExpansionState == ExpansionState.Collapsed)
                                 {
-                                    <button class="btn btn-light btn-xs rounded-circle" style="height: 25px; background-color: white; border-color: white" @onclick="child.Toggle">
+                                    <button class="btn btn-xs rounded-circle" style="height: 25px;" @onclick="child.Toggle">
                                         <span class="small text-secondary">&#x25B7;</span>
                                     </button>
                                 }
                                 else if (@child.ExpansionState == ExpansionState.Expanded)
                                 {
-                                    <button class="btn btn-light btn-xs rounded-circle" style="height: 25px; background-color: white; border-color: white" @onclick="child.Toggle">
+                                    <button class="btn btn-xs rounded-circle" style="height: 25px;" @onclick="child.Toggle">
                                         <span class="small text-secondary">&#x25E2;</span>
                                     </button>
                                 }
@@ -165,15 +166,15 @@
                             {
                                 <div class="row">
                                     <TreeView Children="@child.Children" 
-                                        AvatarUrl="@this.AvatarUrl"
-                                        OnHover="@(async (childNode) => await Hover(childNode))"
-                                        OnUnhover="@(async (childNode) => await Unhover(childNode))"
-                                        @bind-SelectedNeuron="@this.SelectedNeuron" 
-                                        OnMenuRequested="@this.MenuRequested"
-                                        OnInfoRequested="@this.InfoRequested" 
-                                        @bind-ControlsEnabled="@this.ControlsEnabled" 
-                                        IsRoot="false" 
-                                        IsRootRightJustified="@(this.ShouldRightJustifyBasedOnRoot(child))" 
+                                    AvatarUrl="@this.AvatarUrl"
+                                    OnHover="@(async (childNode) => await Hover(childNode))"
+                                    OnUnhover="@(async (childNode) => await Unhover(childNode))"
+                                    @bind-SelectedNeuron="@this.SelectedNeuron" 
+                                    OnMenuRequested="@this.MenuRequested"
+                                    OnInfoRequested="@this.InfoRequested" 
+                                    @bind-ControlsEnabled="@this.ControlsEnabled" 
+                                    IsRoot="false" 
+                                    IsRootRightJustified="@(this.ShouldRightJustifyBasedOnRoot(child))" 
                                     />
                                 </div>
                             }
@@ -272,6 +273,8 @@
 
     protected override async Task OnParametersSetAsync()
     {
+        if (this.IsRoot)
+            this.UpdateChildrenRootIndex();
         if (
             this.selectedNeuron != null && string.IsNullOrEmpty(this.selectedNeuron.Neuron.ExternalReferenceUrl) &&
             this.selectedNeuron.IsExpansionTimerEnabled() &&
@@ -479,4 +482,24 @@
         return dict;
 
     }
+
+    private void UpdateChildrenRootIndex()
+    {
+        for (int i = 0; i < this.Children.Count; i++)
+        {
+            this.Children[i].RootIndex = i;
+        }
+    }
+
+    private string GetBackgroundColorStyle(TreeNeuronViewModel neuron)
+    {
+        var baseStyle = "list-style-type: none;";
+        var colorStyle = (neuron.RootIndex % 2) switch
+        {
+            0 => "background-color: #ffffff;",
+            1 => "background-color: #f0f8ff;",
+            _ => string.Empty
+        };
+        return $"{baseStyle} {colorStyle}";
+    }
 }