1 files changed, 141 insertions, 0 deletions
diff --git a/wiki/inc/Ui/SearchState.php b/wiki/inc/Ui/SearchState.php
new file mode 100644
index 0000000..eb3f7fa
--- /dev/null
+++ b/wiki/inc/Ui/SearchState.php
@@ -0,0 +1,141 @@
+<?php
+
+namespace dokuwiki\Ui;
+
+class SearchState
+{
+    /**
+     * @var array
+     */
+    protected $parsedQuery = [];
+
+    /**
+     * SearchState constructor.
+     *
+     * @param array $parsedQuery
+     */
+    public function __construct(array $parsedQuery)
+    {
+        global $INPUT;
+
+        $this->parsedQuery = $parsedQuery;
+        if (!isset($parsedQuery['after'])) {
+            $this->parsedQuery['after'] = $INPUT->str('min');
+        }
+        if (!isset($parsedQuery['before'])) {
+            $this->parsedQuery['before'] = $INPUT->str('max');
+        }
+        if (!isset($parsedQuery['sort'])) {
+            $this->parsedQuery['sort'] = $INPUT->str('srt');
+        }
+    }
+
+    /**
+     * Get a search state for the current search limited to a new namespace
+     *
+     * @param string $ns the namespace to which to limit the search, falsy to remove the limitation
+     * @param array  $notns
+     *
+     * @return SearchState
+     */
+    public function withNamespace($ns, array $notns = [])
+    {
+        $parsedQuery = $this->parsedQuery;
+        $parsedQuery['ns'] = $ns ? [$ns] : [];
+        $parsedQuery['notns'] = $notns;
+
+        return new SearchState($parsedQuery);
+    }
+
+    /**
+     * Get a search state for the current search with new search fragments and optionally phrases
+     *
+     * @param array $and
+     * @param array $not
+     * @param array $phrases
+     *
+     * @return SearchState
+     */
+    public function withFragments(array $and, array $not, array $phrases = [])
+    {
+        $parsedQuery = $this->parsedQuery;
+        $parsedQuery['and'] = $and;
+        $parsedQuery['not'] = $not;
+        $parsedQuery['phrases'] = $phrases;
+
+        return new SearchState($parsedQuery);
+    }
+
+    /**
+     * Get a search state for the current search with with adjusted time limitations
+     *
+     * @param $after
+     * @param $before
+     *
+     * @return SearchState
+     */
+    public function withTimeLimitations($after, $before)
+    {
+        $parsedQuery = $this->parsedQuery;
+        $parsedQuery['after'] = $after;
+        $parsedQuery['before'] = $before;
+
+        return new SearchState($parsedQuery);
+    }
+
+    /**
+     * Get a search state for the current search with adjusted sort preference
+     *
+     * @param $sort
+     *
+     * @return SearchState
+     */
+    public function withSorting($sort)
+    {
+        $parsedQuery = $this->parsedQuery;
+        $parsedQuery['sort'] = $sort;
+
+        return new SearchState($parsedQuery);
+    }
+
+    /**
+     * Get a link that represents the current search state
+     *
+     * Note that this represents only a simplified version of the search state.
+     * Grouping with braces and "OR" conditions are not supported.
+     *
+     * @param $label
+     *
+     * @return string
+     */
+    public function getSearchLink($label)
+    {
+        global $ID, $conf;
+        $parsedQuery = $this->parsedQuery;
+
+        $tagAttributes = [
+            'target' => $conf['target']['wiki'],
+        ];
+
+        $newQuery = ft_queryUnparser_simple(
+            $parsedQuery['and'],
+            $parsedQuery['not'],
+            $parsedQuery['phrases'],
+            $parsedQuery['ns'],
+            $parsedQuery['notns']
+        );
+        $hrefAttributes = ['do' => 'search', 'sf' => '1', 'q' => $newQuery];
+        if ($parsedQuery['after']) {
+            $hrefAttributes['min'] = $parsedQuery['after'];
+        }
+        if ($parsedQuery['before']) {
+            $hrefAttributes['max'] = $parsedQuery['before'];
+        }
+        if ($parsedQuery['sort']) {
+            $hrefAttributes['srt'] = $parsedQuery['sort'];
+        }
+
+        $href = wl($ID, $hrefAttributes, false, '&');
+        return "<a href='$href' " . buildAttributes($tagAttributes, true) . ">$label</a>";
+    }
+}