MDL-55473 theme_noname: Use template for admin search form

Part of MDL-55071

theme/noname/classes/output/block_settings_renderer.php

@@ -0,0 +1,50 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Overriden block settings renderer.
+ *
+ * @package    theme_noname
+ * @copyright  2016 Frédéric Massart - FMCorz.net
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace theme_noname\output;
+defined('MOODLE_INTERNAL') || die();
+
+require_once($CFG->dirroot . '/blocks/settings/renderer.php');
+
+use moodle_url;
+
+/**
+ * Overriden block settings renderer.
+ *
+ * @package    theme_noname
+ * @copyright  2016 Frédéric Massart - FMCorz.net
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class block_settings_renderer extends \block_settings_renderer {
+
+    public function search_form(moodle_url $formtarget, $searchvalue) {
+        $data = [
+            'action' => $formtarget->out(false),
+            'label' => get_string('searchinsettings', 'admin'),
+            'searchvalue' => $searchvalue
+        ];
+        return $this->render_from_template('block_settings/search_form', $data);
+    }
+
+}

theme/noname/templates/block_settings/search_form.mustache

@@ -0,0 +1,7 @@
+<form method="get" action="{{action}}" class="adminsearchform form-inline" role="search">
+    <div class="form-group">
+        <label class="sr-only" for="adminsearchquery">{{label}}</label>
+        <input class="form-control" type="text" name="query" value="{{searchvalue}}" id="adminsearchquery" size="10">
+    </div>
+    <button type="submit" class="btn btn-secondary">{{#str}}search{{/str}}</button>
+</form>