Allow selecting all options in a multiselect

src/MultiSearchPrompt.php

@@ -50,9 +50,11 @@ public function __construct(
         $this->on('key', fn ($key) => match ($key) {
             Key::UP, Key::UP_ARROW, Key::SHIFT_TAB => $this->highlightPrevious(count($this->matches), true),
             Key::DOWN, Key::DOWN_ARROW, Key::TAB => $this->highlightNext(count($this->matches), true),
-            Key::oneOf([Key::HOME, Key::CTRL_A], $key) => $this->highlighted !== null ? $this->highlight(0) : null,
-            Key::oneOf([Key::END, Key::CTRL_E], $key) => $this->highlighted !== null ? $this->highlight(count($this->matches()) - 1) : null,
+            Key::oneOf(Key::HOME, $key) => $this->highlighted !== null ? $this->highlight(0) : null,
+            Key::oneOf(Key::END, $key) => $this->highlighted !== null ? $this->highlight(count($this->matches()) - 1) : null,
             Key::SPACE => $this->highlighted !== null ? $this->toggleHighlighted() : null,
+            Key::CTRL_A => $this->highlighted !== null ? $this->toggleAll() : null,
+            Key::CTRL_E => null,
             Key::ENTER => $this->submit(),
             Key::LEFT, Key::LEFT_ARROW, Key::RIGHT, Key::RIGHT_ARROW => $this->highlighted = null,
             default => $this->search(),
@@ -132,6 +134,27 @@ public function visible(): array
         return array_slice($this->matches(), $this->firstVisible, $this->scroll, preserve_keys: true);
     }
 
+    /**
+     * Toggle all options.
+     */
+    protected function toggleAll(): void
+    {
+        $allMatchesSelected = collect($this->matches)->every(fn ($label, $key) => $this->isList()
+            ? array_key_exists($label, $this->values)
+            : array_key_exists($key, $this->values));
+
+        if ($allMatchesSelected) {
+            $this->values = array_filter($this->values, fn ($value) => $this->isList()
+                ? ! in_array($value, $this->matches)
+                : ! array_key_exists(array_search($value, $this->matches), $this->matches)
+            );
+        } else {
+            $this->values = $this->isList()
+                ? array_merge($this->values, array_combine(array_values($this->matches), array_values($this->matches)))
+                : array_merge($this->values, array_combine(array_keys($this->matches), array_values($this->matches)));
+        }
+    }
+
     /**
      * Toggle the highlighted entry.
      */

src/MultiSelectPrompt.php

@@ -53,9 +53,10 @@ public function __construct(
         $this->on('key', fn ($key) => match ($key) {
             Key::UP, Key::UP_ARROW, Key::LEFT, Key::LEFT_ARROW, Key::SHIFT_TAB, Key::CTRL_P, Key::CTRL_B, 'k', 'h' => $this->highlightPrevious(count($this->options)),
             Key::DOWN, Key::DOWN_ARROW, Key::RIGHT, Key::RIGHT_ARROW, Key::TAB, Key::CTRL_N, Key::CTRL_F, 'j', 'l' => $this->highlightNext(count($this->options)),
-            Key::oneOf([Key::HOME, Key::CTRL_A], $key) => $this->highlight(0),
-            Key::oneOf([Key::END, Key::CTRL_E], $key) => $this->highlight(count($this->options) - 1),
+            Key::oneOf(Key::HOME, $key) => $this->highlight(0),
+            Key::oneOf(Key::END, $key) => $this->highlight(count($this->options) - 1),
             Key::SPACE => $this->toggleHighlighted(),
+            Key::CTRL_A => $this->toggleAll(),
             Key::ENTER => $this->submit(),
             default => null,
         });
@@ -115,6 +116,20 @@ public function isSelected(string $value): bool
         return in_array($value, $this->values);
     }
 
+    /**
+     * Toggle all options.
+     */
+    protected function toggleAll(): void
+    {
+        if (count($this->values) === count($this->options)) {
+            $this->values = [];
+        } else {
+            $this->values = array_is_list($this->options)
+                ? array_values($this->options)
+                : array_keys($this->options);
+        }
+    }
+
     /**
      * Toggle the highlighted entry.
      */

tests/Feature/MultiSearchPromptTest.php

@@ -333,3 +333,31 @@
 
     Prompt::validateUsing(fn () => null);
 });
+
+it('supports selecting all options', function () {
+    Prompt::fake([Key::DOWN, Key::CTRL_A, Key::ENTER]);
+
+    $result = multisearch(
+        label: 'What are your favorite colors?',
+        options: fn () => [
+            'red' => 'Red',
+            'green' => 'Green',
+            'blue' => 'Blue',
+        ],
+    );
+
+    expect($result)->toBe(['red', 'green', 'blue']);
+
+    Prompt::fake([Key::DOWN, Key::CTRL_A, Key::CTRL_A, Key::ENTER]);
+
+    $result = multisearch(
+        label: 'What are your favorite colors?',
+        options: fn () => [
+            'red' => 'Red',
+            'green' => 'Green',
+            'blue' => 'Blue',
+        ],
+    );
+
+    expect($result)->toBe([]);
+});

tests/Feature/MultiSelectPromptTest.php

@@ -170,6 +170,34 @@
     expect($result)->toBe(['blue', 'red']);
 });
 
+it('supports selecting all options', function () {
+    Prompt::fake([Key::CTRL_A, Key::ENTER]);
+
+    $result = multiselect(
+        label: 'What are your favorite colors?',
+        options: [
+            'red' => 'Red',
+            'green' => 'Green',
+            'blue' => 'Blue',
+        ]
+    );
+
+    expect($result)->toBe(['red', 'green', 'blue']);
+
+    Prompt::fake([Key::CTRL_A, Key::CTRL_A, Key::ENTER]);
+
+    $result = multiselect(
+        label: 'What are your favorite colors?',
+        options: [
+            'red' => 'Red',
+            'green' => 'Green',
+            'blue' => 'Blue',
+        ]
+    );
+
+    expect($result)->toBe([]);
+});
+
 it('returns an empty array when non-interactive', function () {
     Prompt::interactive(false);