PhabricatorNavigationRemarkupRule.php
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PhabricatorNavigationRemarkupRule.php
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	<?php

	final class PhabricatorNavigationRemarkupRule extends PhutilRemarkupRule {

	public function getPriority() {
	return 200.0;
	}

	public function apply($text) {
	return preg_replace_callback(
	'@{nav\b((?:[^}\\\\]+\|\\\\.)*)}@m',
	array($this, 'markupNavigation'),
	$text);
	}

	public function markupNavigation(array $matches) {
	if (!$this->isFlatText($matches[0])) {
	return $matches[0];
	}

	$elements = ltrim($matches[1], ", \n");
	$elements = explode('>', $elements);

	$defaults = array(
	'name' => null,
	'type' => 'link',
	'href' => null,
	'icon' => null,
	);

	$sequence = array();
	$parser = new PhutilSimpleOptions();
	foreach ($elements as $element) {
	if (strpos($element, '=') === false) {
	$sequence[] = array(
	'name' => trim($element),
	) + $defaults;
	} else {
	$sequence[] = $parser->parse($element) + $defaults;
	}
	}

	if ($this->getEngine()->isTextMode()) {
	return implode(' > ', ipull($sequence, 'name'));
	}

	static $icon_names;
	if (!$icon_names) {
	$icon_names = array_fuse(PHUIIconView::getIcons());
	}

	$out = array();
	foreach ($sequence as $item) {
	$item_name = $item['name'];
	$item_color = PHUITagView::COLOR_GREY;
	if ($item['type'] == 'instructions') {
	$item_name = phutil_tag('em', array(), $item_name);
	$item_color = PHUITagView::COLOR_INDIGO;
	}

	$tag = id(new PHUITagView())
	->setType(PHUITagView::TYPE_SHADE)
	->setColor($item_color)
	->setName($item_name);

	if ($item['icon']) {
	$icon_name = 'fa-'.$item['icon'];
	if (isset($icon_names[$icon_name])) {
	$tag->setIcon($icon_name);
	}
	}

	if ($item['href'] !== null) {
	if (PhabricatorEnv::isValidRemoteURIForLink($item['href'])) {
	$tag->setHref($item['href']);
	$tag->setExternal(true);
	}
	}

	$out[] = $tag;
	}

	if ($this->getEngine()->isHTMLMailMode()) {
	$arrow_attr = array(
	'style' => 'color: #92969D;',
	);
	$nav_attr = array();
	} else {
	$arrow_attr = array(
	'class' => 'remarkup-nav-sequence-arrow',
	);
	$nav_attr = array(
	'class' => 'remarkup-nav-sequence',
	);
	}

	$joiner = phutil_tag(
	'span',
	$arrow_attr,
	" \xE2\x86\x92 ");

	$out = phutil_implode_html($joiner, $out);

	$out = phutil_tag(
	'span',
	$nav_attr,
	$out);

	return $this->getEngine()->storeText($out);
	}

	}

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PhabricatorNavigationRemarkupRule.php
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