1	<?php
2
3	declare(strict_types=1);
4
5	namespace Drupal\display_builder\Plugin\display_builder\Island;
6
7	use Drupal\Core\StringTranslation\TranslatableMarkup;
8	use Drupal\display_builder\Attribute\Island;
9	use Drupal\display_builder\InstanceInterface;
10	use Drupal\display_builder\Island\IslandPluginBase;
11	use Drupal\display_builder\Island\IslandType;
12
13	/**
14	* Menu island plugin implementation.
15	*/
16	#[Island(
17	id: 'menu',
18	label: new TranslatableMarkup('Main menu items'),
19	description: new TranslatableMarkup('Copy, paste and duplicate.'),
20	type: IslandType::Menu,
21	)]
22	class Menu extends IslandPluginBase {
23
24	/**
25	* {@inheritdoc}
26	*/
27	public function build(InstanceInterface $builder, array $data = [], array $options = []): array {
28	$builder_id = (string) $builder->id();
29
30	// Copy, paste and duplicate are also reachable with Ctrl/Cmd+C / +V / +D,
31	// without opening the menu, acting on whichever node is currently selected.
32	// @see components/display_builder/js/keyboard.js
33	$copy = $this->buildMenuItem($this->t('Copy'), 'copy');
34	$this->addShortcut($copy, 'mod+c', (string) $this->t('Copy the selected element'));
35
36	$paste = $this->buildMenuItem($this->t('Paste'), 'paste');
37	$this->addShortcut($paste, 'mod+v', (string) $this->t('Paste next to the selected element'));
38	$paste = $this->htmxEvents->onClickPaste($paste, $builder_id);
39
40	$duplicate = $this->buildMenuItem($this->t('Duplicate'), 'duplicate');
41	$this->addShortcut($duplicate, 'mod+d', (string) $this->t('Duplicate the selected element'));
42	$duplicate = $this->htmxEvents->onClickDuplicate($duplicate, $builder_id);
43
44	return [
45	$copy,
46	$paste,
47	$duplicate,
48	];
49	}
50
51	/**
52	* Adds a keyboard shortcut to a menu item render array.
53	*
54	* @param array $item
55	*   The menu item render array, modified by reference.
56	* @param string $key
57	*   The canonical combo string, e.g. "mod+c".
58	* @param string $help
59	*   The help text shown in the shortcuts dialog.
60	*/
61	private function addShortcut(array &$item, string $key, string $help): void {
62	$item['#attributes']['data-keyboard-key'] = $key;
63	$item['#attributes']['data-keyboard-help'] = $help;
64	$item['#attributes']['aria-keyshortcuts'] = $key;
65	}
66
67	}

---

Paths

Below are the source code lines that represent each code path as identified by Xdebug. Please note a path is not necessarily coterminous with a line, a line may contain multiple paths and therefore show up more than once. Please also be aware that some paths may include implicit rather than explicit branches, e.g. an if statement always has an else as part of its logical flow even if you didn't write one.

Menu->addShortcut

61	private function addShortcut(array &$item, string $key, string $help): void {
62	$item['#attributes']['data-keyboard-key'] = $key;
63	$item['#attributes']['data-keyboard-help'] = $help;
64	$item['#attributes']['aria-keyshortcuts'] = $key;
65	}

Menu->build

27	public function build(InstanceInterface $builder, array $data = [], array $options = []): array {
28	$builder_id = (string) $builder->id();
29
30	// Copy, paste and duplicate are also reachable with Ctrl/Cmd+C / +V / +D,
31	// without opening the menu, acting on whichever node is currently selected.
32	// @see components/display_builder/js/keyboard.js
33	$copy = $this->buildMenuItem($this->t('Copy'), 'copy');
34	$this->addShortcut($copy, 'mod+c', (string) $this->t('Copy the selected element'));
35
36	$paste = $this->buildMenuItem($this->t('Paste'), 'paste');
37	$this->addShortcut($paste, 'mod+v', (string) $this->t('Paste next to the selected element'));
38	$paste = $this->htmxEvents->onClickPaste($paste, $builder_id);
39
40	$duplicate = $this->buildMenuItem($this->t('Duplicate'), 'duplicate');
41	$this->addShortcut($duplicate, 'mod+d', (string) $this->t('Duplicate the selected element'));
42	$duplicate = $this->htmxEvents->onClickDuplicate($duplicate, $builder_id);
43
44	return [
45	$copy,
46	$paste,
47	$duplicate,
48	];
49	}