Add icons to items in before mode, ask to save changes

src/Editor/Editor.php

@@ -210,7 +210,34 @@ class Editor
                     break;
 
                 case "\x18": // ctrl-x
-                    $this->running = false;
+
+                    if ($this->modified) {
+                        $menu = new Menu($this->term, [
+                            'cancel' => "Return to editor",
+                            'save' => "Save changes",
+                            'discard' => "Discard changes",
+                            //'sep0' => "---",
+                            //'__paste' => "Paste from clipboard",
+                        ], 'Insert');
+                        $this->redrawInfoBar([ '^C' => 'Cancel', '↑/↓' => 'Select option', 'Enter' => 'Accept' ]);
+                        $sel = $menu->display(0, 0, 30, 0, "value");
+                        $this->redrawEditor();
+                        switch ($sel) {
+                            case 'cancel':
+                                break;
+                            case 'save':
+                                if ($this->doWriteFile()) {
+                                    $this->running = false;
+                                }
+                                break;
+                            case 'discard':
+                                $this->running = false;
+                                break;
+                        }
+                    } else {
+                        $this->running = false;
+                    }
+
                     break;
 
                 case "g":
@@ -265,6 +292,10 @@ class Editor
                     $this->showMessage("Toggle compact groups (c)");
                     break;
 
+                case "\x03": // ctrl-c
+                    $this->showMessage("\e[30;43mPress Ctrl-X to exit.");
+                    break;
+    
                 case "\x0e": // ctrl-n
                     $this->document->load((object)[]);
                     $this->list->parseTree();
@@ -350,11 +381,14 @@ class Editor
      *
      * @return void
      */
-    private function doWriteFile(): void
+    private function doWriteFile(): bool
     {
         [$w,$h] = $this->term->getSize();
 
         $saveTo = $this->ask("\e[33mWrite to:\e[0m ", $this->filename);
+        if (!$saveTo) {
+            return false;
+        }
 
         $doc = $this->document->save();
 
@@ -371,6 +405,7 @@ class Editor
                 break;
             default:
                 $this->showMessage("\e[97;41mUnable to write format: {$ext}");
+                return false;
         }
 
         $this->filename = $saveTo;
@@ -379,7 +414,7 @@ class Editor
         $this->redrawEditor();
 
         $this->showMessage("\e[97;42mWrote to {$saveTo}");
-
+        return true;
 
     }
 

src/List/TreeList.php

@@ -21,6 +21,11 @@ class TreeList implements Countable
     private const TREE_INDENT_GUIDE = "\u{258f} ";
     private const TREE_INDENT = "  ";
 
+    private const ICON_NUMERIC = "\u{f89f}";
+    private const ICON_STRING = "\u{f475}";
+    private const ICON_BOOL = "\u{f657}";
+    private const ICON_NULL = "\u{2400}";
+
     public function __construct(private Tree $tree)
     {
     }
@@ -186,6 +191,16 @@ class TreeList implements Countable
         }
 
         if (!is_null($entry->key)) {
+            if (Settings::$collapseBefore && $entry->node instanceof ValueNode) {
+                echo match (gettype($entry->node->value)) {
+                    'string' => self::ICON_STRING,
+                    'integer' => self::ICON_NUMERIC,
+                    'double' => self::ICON_NUMERIC,
+                    'boolean' => self::ICON_BOOL,
+                    'NULL' => self::ICON_NULL,
+                    default => self::ICON_STRING,  
+                }." ";
+            }
             echo (is_int($entry->key)
                 ?"\e[36;2m\u{e0b6}\e[7m#{$entry->key}\e[27m\u{e0b4}\e[22;37m "
                 :(Settings::$editorQuotedKeys