Propagate auto shortcuts to submenus

Author: AydinHassan

examples/shortcuts.php

@@ -23,10 +23,14 @@
             })
             ->addLineBreak('-');
     })
-    ->addSplitItem(function (SplitItemBuilder $b) {
+    ->addSplitItem(function (SplitItemBuilder $b) use ($itemCallable) {
         $b->addItem('Split Item [1]', function() { echo 'Split Item 1!'; })
             ->addItem('Split Item [2]', function() { echo 'Split Item 2!'; })
-            ->addItem('Split Item [3]', function() { echo 'Split Item 3!'; });
+            ->addItem('Split Item [3]', function() { echo 'Split Item 3!'; })
+            ->addSubMenu('Split Item [4]', function (CliMenuBuilder $builder) use ($itemCallable) {
+                $builder->addItem('Third [I]tem', $itemCallable);
+
+            });
     })
     ->addLineBreak('-')
     ->build();

src/Builder/CliMenuBuilder.php

@@ -155,6 +155,10 @@ public function addSubMenu(string $text, \Closure $callback) : self
     {
         $builder = self::newSubMenu($this->terminal);
 
+        if ($this->autoShortcuts) {
+            $builder->enableAutoShortcuts($this->autoShortcutsRegex);
+        }
+
         $callback = $callback->bindTo($builder);
         $callback($builder);
 
@@ -270,6 +274,10 @@ public function addSplitItem(\Closure $callback) : self
     {
         $builder = new SplitItemBuilder($this->menu);
 
+        if ($this->autoShortcuts) {
+            $builder->enableAutoShortcuts($this->autoShortcutsRegex);
+        }
+
         $callback = $callback->bindTo($builder);
         $callback($builder);
 

src/Builder/SplitItemBuilder.php

@@ -24,6 +24,22 @@ class SplitItemBuilder
      */
     private $splitItem;
 
+    /**
+     * Whether or not to auto create keyboard shortcuts for items
+     * when they contain square brackets. Eg: [M]y item
+     *
+     * @var bool
+     */
+    private $autoShortcuts = false;
+
+    /**
+     * Regex to auto match for shortcuts defaults to looking
+     * for a single character encased in square brackets
+     *
+     * @var string
+     */
+    private $autoShortcutsRegex = '/\[(.)\]/';
+
     public function __construct(CliMenu $menu)
     {
         $this->menu = $menu;
@@ -59,6 +75,10 @@ public function addSubMenu(string $text, \Closure $callback) : self
     {
         $builder = CliMenuBuilder::newSubMenu($this->menu->getTerminal());
 
+        if ($this->autoShortcuts) {
+            $builder->enableAutoShortcuts($this->autoShortcutsRegex);
+        }
+
         $callback = $callback->bindTo($builder);
         $callback($builder);
 
@@ -80,6 +100,17 @@ public function setGutter(int $gutter) : self
 
         return $this;
     }
+
+    public function enableAutoShortcuts(string $regex = null) : self
+    {
+        $this->autoShortcuts = true;
+
+        if (null !== $regex) {
+            $this->autoShortcutsRegex = $regex;
+        }
+
+        return $this;
+    }
 
     public function build() : SplitItem
     {