From 7629d6e9510a128d787e80bd1e0254c2aea3bdf9 Mon Sep 17 00:00:00 2001
From: Pat Hartl <pat@pathar.tl>
Date: Tue, 18 Apr 2023 20:17:50 -0500
Subject: [PATCH] Make tabbed text editor, styled somewhat after VS Code

---
 .../Pages/Servers/Components/TextEditor.razor | 110 ++++++++++++++----
 .../Servers/Components/TextEditorPane.razor   |  93 +++++++++++++++
 2 files changed, 183 insertions(+), 20 deletions(-)
 create mode 100644 LANCommander/Pages/Servers/Components/TextEditorPane.razor

diff --git a/LANCommander/Pages/Servers/Components/TextEditor.razor b/LANCommander/Pages/Servers/Components/TextEditor.razor
index 1cd05c9..bc8d6b5 100644
--- a/LANCommander/Pages/Servers/Components/TextEditor.razor
+++ b/LANCommander/Pages/Servers/Components/TextEditor.razor
@@ -1,6 +1,6 @@
 @using LANCommander.Extensions;
 
-<GridRow>
+<GridRow Class="text-editor">
     <GridCol Span="6">
         <Tree TItem="FileTreeNode"
               DataSource="FileTree"
@@ -12,13 +12,12 @@
     </GridCol>
 
     <GridCol Span="18">
-        <Breadcrumb>
-            @foreach (var part in CurrentFile.Split(Path.DirectorySeparatorChar))
+        <Tabs Type="@TabType.EditableCard" HideAdd @bind-ActiveKey="ActiveFile" OnClose="OnTabClose">
+            @foreach (var file in OpenFiles)
             {
-                <BreadcrumbItem>@part</BreadcrumbItem>
+                <TextEditorPane FilePath="@file" />
             }
-        </Breadcrumb>
-        <StandaloneCodeEditor @ref="Editor" Id="editor" ConstructionOptions="EditorConstructionOptions" />
+        </Tabs>
     </GridCol>
 </GridRow>
 
@@ -26,6 +25,73 @@
     .monaco-editor-container {
         min-height: 600px;
     }
+
+    .text-editor {
+        background: #252525;
+        min-height: 600px;
+    }
+
+    .text-editor .ant-tree {
+        background: none;
+        color: #ccc;
+        padding-top: 16px;
+        padding-left: 8px;
+    }
+
+    .text-editor .ant-tree-node-content-wrapper:hover {
+        background: none;
+    }
+
+    .text-editor .ant-tree-treenode:hover {
+        background: #37373d;
+    }
+
+    .text-editor .text-editor-info-bar {
+        padding-left: 16px;
+        padding-right: 16px;
+        margin-top: 0;
+        margin-bottom: 0;
+        padding-top: 8px;
+        padding-bottom: 8px;
+        background: #1e1e1e;
+    }
+
+    .text-editor .text-editor-info-bar .ant-breadcrumb,
+    .text-editor .ant-breadcrumb-separator,
+    .text-editor .ant-breadcrumb li:last-child {
+        color: #a9a9a9;
+    }
+
+    .text-editor .ant-tabs-card.ant-tabs-top > .ant-tabs-nav .ant-tabs-tab,
+    .text-editor .ant-tabs-card.ant-tabs-top > div > .ant-tabs-nav .ant-tabs-tab {
+        border-radius: 0;
+        background: #2d2d2d;
+        padding: 4px 10px;
+        color: #a9a9a9;
+        border: none;
+    }
+
+    .text-editor .ant-tabs-card > .ant-tabs-nav .ant-tabs-tab-active,
+    .text-editor .ant-tabs-card > div > .ant-tabs-nav .ant-tabs-tab-active {
+        background: #1e1e1e !important;
+    }
+
+    .text-editor .ant-tabs-tab .ant-tabs-tab-remove .anticon {
+        color: #a9a9a9;
+    }
+
+    .text-editor .ant-tabs-tab.ant-tabs-tab-active .ant-tabs-tab-btn,
+    .text-editor .ant-tabs-tab.ant-tabs-tab-active .ant-tabs-tab-remove .anticon {
+        color: #fff;
+    }
+
+    .text-editor .ant-tabs-top > .ant-tabs-nav::before {
+        border: none;
+    }
+
+    .text-editor .ant-tabs-nav {
+        margin: 0;
+    }
 </style>
 
 @code {
@@ -37,6 +103,9 @@
     HashSet<FileTreeNode> FileTree { get; set; } = new HashSet<FileTreeNode>();
     string CurrentFile = "";
 
+    List<string> OpenFiles = new List<string>();
+    string ActiveFile;
+
     private StandaloneEditorConstructionOptions EditorConstructionOptions(StandaloneCodeEditor editor)
     {
         return new StandaloneEditorConstructionOptions
@@ -57,26 +126,27 @@
 
         root.PopulateChildren(WorkingDirectory);
 
-        FileTree.Add(root);
+        foreach (var child in root.Children)
+        {
+            FileTree.Add(child);
+        }
     }
 
     private void OpenFile(FileTreeNode node)
     {
-        if (File.Exists(node.FullName))
-        {
-            var file = new FileInfo(node.FullName);
+        if (!OpenFiles.Contains(node.FullName))
+            OpenFiles.Add(node.FullName);
 
-            CurrentFile = node.FullName;
+        ActiveFile = node.FullName;
 
-            if (!file.IsBinaryFile())
-            {
-                Editor.SetValue(File.ReadAllText(file.FullName));
-            }
-            else
-            {
-                Editor.SetValue("This file cannot be edited because it is a binary file.");
-            }
-        }
+        StateHasChanged();
+    }
+
+    private void OnTabClose(string key)
+    {
+        OpenFiles.Remove(key);
+
+        StateHasChanged();
     }
 
     public class FileTreeNode
diff --git a/LANCommander/Pages/Servers/Components/TextEditorPane.razor b/LANCommander/Pages/Servers/Components/TextEditorPane.razor
new file mode 100644
index 0000000..d0c0ac7
--- /dev/null
+++ b/LANCommander/Pages/Servers/Components/TextEditorPane.razor
@@ -0,0 +1,93 @@
+@using LANCommander.Extensions;
+
+@if (FileInfo != null)
+{
+    <TabPane Key="@FileInfo.FullName" ForceRender Tab="@FileInfo.Name">
+        <ChildContent>
+        <GridRow Align="middle" Class="text-editor-info-bar">
+                <GridCol Flex=@("auto")>
+                    <Breadcrumb>
+                        @foreach (var part in FileInfo.FullName.Split(Path.DirectorySeparatorChar))
+                        {
+                            <BreadcrumbItem>@part</BreadcrumbItem>
+                        }
+                    </Breadcrumb>
+                </GridCol>
+
+                <GridCol>
+                    <Button Type="@ButtonType.Primary" OnClick="async () => await Save()" Disabled="!HasUnsavedChanges">Save</Button>
+                </GridCol>
+            </GridRow>
+
+
+            <StandaloneCodeEditor @ref="Editor" CssClass="text-editor" ConstructionOptions="EditorConstructionOptions" OnDidChangeModelContent="OnChange" />
+        </ChildContent>
+    </TabPane>
+}
+
+@code {
+    [Parameter] public string FilePath { get; set; }
+
+    TabPane Pane;
+    FileInfo FileInfo;
+    StandaloneCodeEditor Editor;
+    string Contents;
+    bool HasUnsavedChanges = false;
+
+    private StandaloneEditorConstructionOptions EditorConstructionOptions(StandaloneCodeEditor editor)
+    {
+        return new StandaloneEditorConstructionOptions
+        {
+            AutomaticLayout = true,
+            Theme = "vs-dark"
+        };
+    }
+
+    protected override async Task OnParametersSetAsync()
+    {
+        FileInfo = new FileInfo(FilePath);
+    }
+
+    protected override async Task OnAfterRenderAsync(bool firstRender)
+    {
+        if (Editor != null && firstRender)
+        {
+            if (File.Exists(FileInfo.FullName))
+            {
+                if (!FileInfo.IsBinaryFile())
+                {
+                    Contents = await File.ReadAllTextAsync(FileInfo.FullName);
+
+                    await Editor.SetValue(Contents);
+                }
+                else
+                {
+                    await Editor.SetValue("This file cannot be edited because it is a binary file.");
+                }
+            }
+
+            await Editor.AddCommand((int)BlazorMonaco.KeyMod.CtrlCmd | (int)BlazorMonaco.KeyCode.KeyS, async (editor) =>
+            {
+                await Save();
+            }, null);
+        }
+    }
+
+    private void OnChange(ModelContentChangedEvent eventArgs)
+    {
+        if (!HasUnsavedChanges)
+        {
+            HasUnsavedChanges = true;
+            StateHasChanged();
+        }
+    }
+
+    private async Task Save()
+    {
+        await File.WriteAllTextAsync(FileInfo.FullName, await Editor.GetValue());
+
+        HasUnsavedChanges = false;
+
+        StateHasChanged();
+    }
+}