From 3b20e499404d6b451a385522e91341b652197a21 Mon Sep 17 00:00:00 2001
From: Eric Lippmann <eric.lippmann@netways.de>
Date: Tue, 10 Feb 2015 17:13:17 +0100
Subject: [PATCH] doc/lib: Add renderer for doc searches

refs #6630
---
 .../library/Doc/Search/DocSearchRenderer.php  | 147 ++++++++++++++++++
 1 file changed, 147 insertions(+)
 create mode 100644 modules/doc/library/Doc/Search/DocSearchRenderer.php

diff --git a/modules/doc/library/Doc/Search/DocSearchRenderer.php b/modules/doc/library/Doc/Search/DocSearchRenderer.php
new file mode 100644
index 000000000..97f830a93
--- /dev/null
+++ b/modules/doc/library/Doc/Search/DocSearchRenderer.php
@@ -0,0 +1,147 @@
+<?php
+/* Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Module\Doc\Search;
+
+use RecursiveIteratorIterator;
+use Icinga\Module\Doc\Renderer;
+
+/**
+ * Renderer for doc searches
+ *
+ * @method DocSearchIterator getInnerIterator() {
+ *     @{inheritdoc}
+ * }
+ */
+class DocSearchRenderer extends Renderer
+{
+    /**
+     * CSS class
+     *
+     * @type string
+     */
+    const HIGHLIGHT_CSS_CLASS = 'search-highlight';
+
+    /**
+     * The content to render
+     *
+     * @type array
+     */
+    protected $content = array();
+
+    /**
+     * Create a new renderer for doc searches
+     *
+     * @param DocSearchIterator $iterator
+     */
+    public function __construct (DocSearchIterator $iterator)
+    {
+        parent::__construct($iterator, RecursiveIteratorIterator::SELF_FIRST);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function beginIteration()
+    {
+        $this->content[] = '<nav><ul>';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function endIteration()
+    {
+        $this->content[] = '</ul></nav>';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function beginChildren()
+    {
+        if ($this->getInnerIterator()->getMatches()) {
+            $this->content[] = '<ul>';
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function endChildren()
+    {
+        if ($this->getInnerIterator()->getMatches()) {
+            $this->content[] = '</ul>';
+        }
+    }
+
+    public function highlight($line, array $matches)
+    {
+        $highlighted = '';
+        $offset = 0;
+        ksort($matches);
+        foreach ($matches as $position => $match) {
+            $highlighted .= $this->getView()->escape(substr($line, $offset, $position - $offset))
+                . '<span class="' . static::HIGHLIGHT_CSS_CLASS .'">'
+                . $this->getView()->escape($match)
+                . '</span>';
+            $offset = $position + strlen($match);
+        }
+        $highlighted .= $this->getView()->escape(substr($line, $offset));
+        return $highlighted;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function render()
+    {
+        foreach ($this as $section) {
+            if (($matches = $this->getInnerIterator()->getMatches()) === null) {
+                continue;
+            }
+            $title = $this->getView()->escape($section->getTitle());
+            $contentMatches = array();
+            foreach ($matches as $match) {
+                if ($match->getMatchType() === DocSearchMatch::MATCH_HEADER) {
+                    $title = $this->highlight($match->getLine(), $match->getMatches());
+                } else {
+                    $contentMatches[] = sprintf(
+                        '<p>%s</p>',
+                        $this->highlight($match->getLine(), $match->getMatches())
+                    );
+                }
+            }
+            $path = $this->getView()->getHelper('Url')->url(
+                array_merge(
+                    $this->urlParams,
+                    array(
+                        'chapter' => $this->encodeUrlParam($section->getChapter()->getId())
+                    )
+                ),
+                $this->url,
+                false,
+                false
+            );
+            $url = $this->getView()->url(
+                $path,
+                array('highlight' => $this->getInnerIterator()->getSearch()->getInput())
+            );
+            /** @type \Icinga\Web\Url $url */
+            $url->setAnchor($this->encodeAnchor($section->getId()));
+            $this->content[] = sprintf(
+                '<li><a data-base-target="_next" %shref="%s">%s</a>',
+                $section->getNoFollow() ? 'rel="nofollow" ' : '',
+                $url->getAbsoluteUrl(),
+                $title
+            );
+            if (! empty($contentMatches)) {
+                $this->content = array_merge($this->content, $contentMatches);
+            }
+            if (! $section->hasChildren()) {
+                $this->content[] = '</li>';
+            }
+        }
+        return implode("\n", $this->content);
+    }
+}