From c8675142117d57188d710bcbe39ca28d19181d1f Mon Sep 17 00:00:00 2001
From: Thorsten Sommer <mail@tsommer.org>
Date: Mon, 15 Aug 2022 21:03:01 +0200
Subject: [PATCH] Made create project button aware of user input's state

---
 .../UI MAUI/Pages/LoadProject.razor           |  4 +--
 .../UI MAUI/Pages/LoadProject.razor.cs        | 26 ++++++++++++++++---
 2 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/I18N Commander/UI MAUI/Pages/LoadProject.razor b/I18N Commander/UI MAUI/Pages/LoadProject.razor
index 5912809..f1adf22 100644
--- a/I18N Commander/UI MAUI/Pages/LoadProject.razor	
+++ b/I18N Commander/UI MAUI/Pages/LoadProject.razor	
@@ -24,7 +24,7 @@
 <Assistant HeaderText="Create new project" IconName="add-project.svg" BaseHeight="new Assistant.Height(40, 55, 40)">
     <div class="mb-3">
         <label for="projectName" class="form-label fw-bold">Project Name:</label>
-        <input type="text" class="form-control" id="projectName" placeholder="Type a project name">
+        <input type="text" class="form-control" id="projectName" placeholder="Type a project name" @bind="this.newProjectName" @bind:event="oninput" @onkeydown="this.ReevaluateState">
     </div>
     
     @if (DeviceInfo.Idiom == DeviceIdiom.Desktop)
@@ -38,5 +38,5 @@
         </div>
     }
     
-    <button class="btn btn-secondary" type="button" @onclick="this.CreateProject">Create project</button>
+    <button class="btn btn-secondary" type="button" @onclick="this.CreateProject" disabled="@this.CannotCreateProject()">Create project</button>
 </Assistant>
\ No newline at end of file
diff --git a/I18N Commander/UI MAUI/Pages/LoadProject.razor.cs b/I18N Commander/UI MAUI/Pages/LoadProject.razor.cs
index 49512f8..93a9dc0 100644
--- a/I18N Commander/UI MAUI/Pages/LoadProject.razor.cs	
+++ b/I18N Commander/UI MAUI/Pages/LoadProject.razor.cs	
@@ -7,6 +7,7 @@ public partial class LoadProject
 {
     private readonly List<RecentProject> recentProjects = new();
 
+    private string newProjectName = string.Empty;
     private string newProjectDestination = string.Empty;
 
     #region Overrides of ComponentBase
@@ -39,17 +40,36 @@ public partial class LoadProject
 
     private Task ChooseProjectDestination()
     {
+        try
+        {
 #if WINDOWS
-        return this.ChooseProjectDestinationWindows();
+            return this.ChooseProjectDestinationWindows();
 #elif MACCATALYST
-        return this.ChooseProjectDestinationMacOS();
+            return this.ChooseProjectDestinationMacOS();
 #else
-        return Task.CompletedTask;
+            return Task.CompletedTask;
 #endif
+        }
+        finally
+        {
+            this.StateHasChanged();
+        }
     }
 
     private Task CreateProject()
     {
         return Task.CompletedTask;
     }
+
+    private bool CannotCreateProject()
+    {
+        if (DeviceInfo.Idiom == DeviceIdiom.Desktop)
+            return string.IsNullOrWhiteSpace(this.newProjectName) || string.IsNullOrWhiteSpace(this.newProjectDestination);
+        else if (DeviceInfo.Idiom == DeviceIdiom.Phone || DeviceInfo.Idiom == DeviceIdiom.Tablet)
+            return string.IsNullOrWhiteSpace(this.newProjectName);
+        else
+            return true;
+    }
+    
+    private void ReevaluateState() => this.StateHasChanged();
 }
\ No newline at end of file