PhabricatorHelpKeyboardShortcutController.php
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	<?php

	final class PhabricatorHelpKeyboardShortcutController
	extends PhabricatorHelpController {

	public function processRequest() {
	$request = $this->getRequest();
	$user = $request->getUser();

	$keys = $request->getStr('keys');
	$keys = json_decode($keys, true);
	if (!is_array($keys)) {
	return new Aphront400Response();
	}

	// There have been at least two users asking for a keyboard shortcut to
	// close the dialog, so be explicit that escape works since it isn't
	// terribly discoverable.
	$keys[] = array(
	'keys' => array('esc'),
	'description' => 'Close any dialog, including this one.',
	);

	$rows = array();
	foreach ($keys as $shortcut) {
	$keystrokes = array();
	foreach ($shortcut['keys'] as $stroke) {
	$keystrokes[] = phutil_tag('kbd', array(), $stroke);
	}
	$keystrokes = array_interleave(' or ', $keystrokes);
	$rows[] = phutil_tag(
	'tr',
	array(),
	array(
	phutil_tag('th', array(), $keystrokes),
	phutil_tag('td', array(), $shortcut['description']),
	));
	}

	$table =
	'<table class="keyboard-shortcut-help">'.
	implode('', $rows).
	'</table>';

	$dialog = id(new AphrontDialogView())
	->setUser($user)
	->setTitle('Keyboard Shortcuts')
	->appendChild($table)
	->addCancelButton('#', 'Close');

	return id(new AphrontDialogResponse())
	->setDialog($dialog);
	}

	}