From 3405956553a6f12bbbe80e27a3f6cfc8c8a16304 Mon Sep 17 00:00:00 2001
From: Petr Skoda <skodak@moodle.org>
Date: Sun, 27 Dec 2009 12:58:29 +0000
Subject: [PATCH] MDL-21197 output components do not use globals any more in
 prepare() methods

---
 lib/outputcomponents.php | 135 +++++++++++++++++++++++----------------
 lib/outputrenderers.php  |  46 ++++++-------
 2 files changed, 102 insertions(+), 79 deletions(-)

diff --git a/lib/outputcomponents.php b/lib/outputcomponents.php
index 39c1a30365..2b246d92da 100644
--- a/lib/outputcomponents.php
+++ b/lib/outputcomponents.php
@@ -117,10 +117,15 @@ class moodle_html_component {
 
     /**
      * Perform any cleanup or final processing that should be done before an
-     * instance of this class is output.
+     * instance of this class is output. This method is supposed to be called
+     * only from renderers.
+     *
+     * @param renderer_base $output output renderer
+     * @param moodle_page $page
+     * @param string $target rendering target
      * @return void
      */
-    public function prepare() {
+    public function prepare(renderer_base $output, moodle_page $page, $target) {
         $this->classes = array_unique(self::clean_classes($this->classes));
     }
 
@@ -206,6 +211,7 @@ class moodle_html_component {
     }
 }
 
+
 class labelled_html_component extends moodle_html_component {
     /**
      * @var mixed $label The label for that component. String or html_label object
@@ -273,14 +279,15 @@ class html_label extends moodle_html_component {
      * @see moodle_html_component::prepare()
      * @return void
      */
-    public function prepare() {
+    public function prepare(renderer_base $output, moodle_page $page, $target) {
         if (empty($this->text)) {
             throw new coding_exception('html_label must have a $text value.');
         }
-        parent::prepare();
+        parent::prepare($output, $page, $target);
     }
 }
 
+
 /**
  * This class hold all the information required to describe a <select> menu that
  * will be printed by {@link core_renderer::select()}. (Or by an overridden
@@ -373,7 +380,7 @@ class html_select extends labelled_html_component {
      * @see moodle_html_component::prepare()
      * @return void
      */
-    public function prepare() {
+    public function prepare(renderer_base $output, moodle_page $page, $target) {
         global $CFG;
 
         // name may contain [], which would make an invalid id. e.g. numeric question type editing form, assignment quickgrading
@@ -399,7 +406,7 @@ class html_select extends labelled_html_component {
         $this->add_class('select');
 
         $this->initialise_options();
-        parent::prepare();
+        parent::prepare($output, $page, $target);
     }
 
     /**
@@ -565,8 +572,6 @@ class html_select extends labelled_html_component {
      * @return void
      */
     public function override_option_values($options) {
-        global $PAGE;
-
         $originalcount = count($options);
         $this->initialise_options();
         $newcount = count($this->options);
@@ -582,7 +587,7 @@ class html_select extends labelled_html_component {
 
                     $optionurl = new moodle_url(key($options));
 
-                    if ($optionurl->compare($PAGE->url, URL_MATCH_PARAMS)) {
+                    if ($optionurl->compare($page->url, URL_MATCH_PARAMS)) {
                         $this->options[$optkey]->options[$key]->selected = 'selected';
                     }
                 }
@@ -591,7 +596,7 @@ class html_select extends labelled_html_component {
                 $this->options[$optkey]->value = key($options);
                 $optionurl = new moodle_url(key($options));
 
-                if ($optionurl->compare($PAGE->url, URL_MATCH_PARAMS)) {
+                if ($optionurl->compare($page->url, URL_MATCH_PARAMS)) {
                     $this->options[$optkey]->selected = 'selected';
                 }
                 next($options);
@@ -747,6 +752,7 @@ class html_select extends labelled_html_component {
     }
 }
 
+
 /**
  * This class represents a select option element
  *
@@ -780,7 +786,7 @@ class html_select_option extends labelled_html_component {
      * @see moodle_html_component::prepare()
      * @return void
      */
-    public function prepare() {
+    public function prepare(renderer_base $output, moodle_page $page, $target) {
         if (empty($this->text) && (string)$this->text!=='0') {
             throw new coding_exception('html_select_option requires a $text value.');
         }
@@ -794,7 +800,7 @@ class html_select_option extends labelled_html_component {
             $this->generate_id();
         }
 
-        parent::prepare();
+        parent::prepare($output, $page, $target);
     }
 
     /**
@@ -816,6 +822,7 @@ class html_select_option extends labelled_html_component {
     }
 }
 
+
 /**
  * This class represents a select optgroup element
  *
@@ -833,17 +840,18 @@ class html_select_optgroup extends moodle_html_component {
      */
     public $options = array();
 
-    public function prepare() {
+    public function prepare(renderer_base $output, moodle_page $page, $target) {
         if (empty($this->text)) {
             throw new coding_exception('html_select_optgroup requires a $text value.');
         }
         if (empty($this->options)) {
             throw new coding_exception('html_select_optgroup requires at least one html_select_option object');
         }
-        parent::prepare();
+        parent::prepare($output, $page, $target);
     }
 }
 
+
 /**
  * This class represents an input field
  *
@@ -881,14 +889,14 @@ class html_field extends labelled_html_component {
      * @see moodle_html_component::prepare()
      * @return void
      */
-    public function prepare() {
+    public function prepare(renderer_base $output, moodle_page $page, $target) {
         if (empty($this->style)) {
             $this->style = 'width: 4em;';
         }
         if (empty($this->id)) {
             $this->generate_id();
         }
-        parent::prepare();
+        parent::prepare($output, $page, $target);
     }
 
     /**
@@ -913,6 +921,7 @@ class html_field extends labelled_html_component {
     }
 }
 
+
 /**
  * Holds all the information required to render a <table> by
  * {@see core_renderer::table()} or by an overridden version of that
@@ -1068,7 +1077,7 @@ class html_table extends labelled_html_component {
      * @see moodle_html_component::prepare()
      * @return void
      */
-    public function prepare() {
+    public function prepare(renderer_base $output, moodle_page $page, $target) {
         if (!empty($this->align)) {
             foreach ($this->align as $key => $aa) {
                 if ($aa) {
@@ -1121,7 +1130,7 @@ class html_table extends labelled_html_component {
         } else {
             $this->rotateheaders = false; // Makes life easier later.
         }
-        parent::prepare();
+        parent::prepare($output, $page, $target);
     }
     /**
      * @param string $name The name of the variable to set
@@ -1139,6 +1148,7 @@ class html_table extends labelled_html_component {
     }
 }
 
+
 /**
  * Component representing a table row.
  *
@@ -1156,8 +1166,8 @@ class html_table_row extends moodle_html_component {
      * @see lib/moodle_html_component#prepare()
      * @return void
      */
-    public function prepare() {
-        parent::prepare();
+    public function prepare(renderer_base $output, moodle_page $page, $target) {
+        parent::prepare($output, $page, $target);
     }
 
     /**
@@ -1180,6 +1190,7 @@ class html_table_row extends moodle_html_component {
     }
 }
 
+
 /**
  * Component representing a table cell.
  *
@@ -1217,14 +1228,15 @@ class html_table_cell extends moodle_html_component {
      * @see lib/moodle_html_component#prepare()
      * @return void
      */
-    public function prepare() {
+    public function prepare(renderer_base $output, moodle_page $page, $target) {
         if ($this->header && empty($this->scope)) {
             $this->scope = 'col';
         }
-        parent::prepare();
+        parent::prepare($output, $page, $target);
     }
 }
 
+
 /**
  * Component representing a XHTML link.
  *
@@ -1258,8 +1270,7 @@ class html_link extends moodle_html_component {
      * @see lib/moodle_html_component#prepare() Disables the link if it links to the current page.
      * @return void
      */
-    public function prepare() {
-        global $PAGE;
+    public function prepare(renderer_base $output, moodle_page $page, $target) {
         // We can't accept an empty text value
         if (empty($this->text)) {
             throw new coding_exception('A html_link must have a descriptive text value!');
@@ -1269,10 +1280,10 @@ class html_link extends moodle_html_component {
             $this->url = new moodle_url($this->url);
         }
 
-        if ($this->url->compare($PAGE->url, URL_MATCH_PARAMS) && $this->disableifcurrent) {
+        if ($this->url->compare($page->url, URL_MATCH_PARAMS) && $this->disableifcurrent) {
             $this->disabled = true;
         }
-        parent::prepare();
+        parent::prepare($output, $page, $target);
     }
 
     /**
@@ -1290,6 +1301,7 @@ class html_link extends moodle_html_component {
     }
 }
 
+
 /**
  * Component representing a XHTML button (input of type 'button').
  * The renderer will either output it as a button with an onclick event,
@@ -1314,7 +1326,7 @@ class html_button extends labelled_html_component {
      * @see lib/moodle_html_component#prepare()
      * @return void
      */
-    public function prepare() {
+    public function prepare(renderer_base $output, moodle_page $page, $target) {
         $this->add_class('singlebutton');
 
         if (empty($this->text)) {
@@ -1325,7 +1337,7 @@ class html_button extends labelled_html_component {
             $this->disabled = 'disabled';
         }
 
-        parent::prepare();
+        parent::prepare($output, $page, $target);
     }
 }
 
@@ -1350,13 +1362,13 @@ class html_image extends labelled_html_component {
      * @see lib/moodle_html_component#prepare()
      * @return void
      */
-    public function prepare() {
+    public function prepare(renderer_base $output, moodle_page $page, $target) {
         if (empty($this->src)) {
             throw new coding_exception('html_image requires a $src value (moodle_url).');
         }
 
         $this->add_class('image');
-        parent::prepare();
+        parent::prepare($output, $page, $target);
     }
 
     /**
@@ -1371,6 +1383,7 @@ class html_image extends labelled_html_component {
     }
 }
 
+
 /**
  * Component representing a textarea.
  *
@@ -1404,7 +1417,7 @@ class html_textarea extends moodle_html_component {
      * @see lib/moodle_html_component#prepare()
      * @return void
      */
-    public function prepare() {
+    public function prepare(renderer_base $output, moodle_page $page, $target) {
         $this->add_class('form-textarea');
 
         if (empty($this->id)) {
@@ -1418,10 +1431,11 @@ class html_textarea extends moodle_html_component {
             $this->value = htmlspecialchars($value);
         }
 
-        parent::prepare();
+        parent::prepare($output, $page, $target);
     }
 }
 
+
 /**
  * Component representing a simple form wrapper. Its purpose is mainly to enclose
  * a submit input with the appropriate action and hidden inputs.
@@ -1473,7 +1487,7 @@ class html_form extends moodle_html_component {
      * @see lib/moodle_html_component#prepare()
      * @return void
      */
-    public function prepare() {
+    public function prepare(renderer_base $output, moodle_page $page, $target) {
 
         if (empty($this->url)) {
             throw new coding_exception('A html_form must have a $url value (string or moodle_url).');
@@ -1487,7 +1501,7 @@ class html_form extends moodle_html_component {
             $this->url->param('sesskey', sesskey());
         }
 
-        parent::prepare();
+        parent::prepare($output, $page, $target);
     }
 
     public static function make_button($url, $options, $label='OK', $method='post') {
@@ -1499,6 +1513,7 @@ class html_form extends moodle_html_component {
     }
 }
 
+
 /**
  * Component representing a list.
  *
@@ -1530,8 +1545,8 @@ class html_list extends moodle_html_component {
      * @see lib/moodle_html_component#prepare()
      * @return void
      */
-    public function prepare() {
-        parent::prepare();
+    public function prepare(renderer_base $output, moodle_page $page, $target) {
+        parent::prepare($output, $page, $target);
     }
 
     /**
@@ -1581,6 +1596,7 @@ class html_list extends moodle_html_component {
     }
 }
 
+
 /**
  * Component representing a list item.
  *
@@ -1598,11 +1614,12 @@ class html_list_item extends moodle_html_component {
      * @see lib/moodle_html_component#prepare()
      * @return void
      */
-    public function prepare() {
-        parent::prepare();
+    public function prepare(renderer_base $output, moodle_page $page, $target) {
+        parent::prepare($output, $page, $target);
     }
 }
 
+
 /**
  * Component representing a span element. It has no special attributes, so
  * it is very low-level and can be used for styling and JS actions.
@@ -1620,13 +1637,14 @@ class html_span extends moodle_html_component {
      * @see lib/moodle_html_component#prepare()
      * @return void
      */
-    public function prepare() {
-        parent::prepare();
+    public function prepare(renderer_base $output, moodle_page $page, $target) {
+        parent::prepare($output, $page, $target);
     }
 }
 
 /// Complex components aggregating simpler components
 
+
 /**
  * Component representing a paging bar.
  *
@@ -1685,7 +1703,7 @@ class moodle_paging_bar extends moodle_html_component {
      * @see lib/moodle_html_component#prepare()
      * @return void
      */
-    public function prepare() {
+    public function prepare(renderer_base $output, moodle_page $page, $target) {
         if (!isset($this->totalcount) || is_null($this->totalcount)) {
             throw new coding_exception('moodle_paging_bar requires a totalcount value.');
         }
@@ -1791,6 +1809,7 @@ class moodle_paging_bar extends moodle_html_component {
     }
 }
 
+
 /**
  * Component representing a user picture.
  *
@@ -1840,8 +1859,8 @@ class moodle_user_picture extends moodle_html_component {
      * @see lib/moodle_html_component#prepare()
      * @return void
      */
-    public function prepare() {
-        global $CFG, $DB, $OUTPUT;
+    public function prepare(renderer_base $output, moodle_page $page, $target) {
+        global $CFG, $DB;
 
         if (empty($this->user)) {
             throw new coding_exception('A moodle_user_picture object must have a $user object before being rendered.');
@@ -1923,7 +1942,7 @@ class moodle_user_picture extends moodle_html_component {
             $this->image->src = new moodle_url(get_file_url($this->user->id.'/'.$file.'.jpg', null, 'user'));
         } else { // Print default user pictures (use theme version if available)
             $this->add_class('defaultuserpic');
-            $this->image->src = $OUTPUT->pix_url('u/' . $file);
+            $this->image->src = $output->pix_url('u/' . $file);
         }
 
         if ($this->alttext) {
@@ -1935,7 +1954,7 @@ class moodle_user_picture extends moodle_html_component {
             }
         }
 
-        parent::prepare();
+        parent::prepare($output, $page, $target);
     }
 
     public static function make($user, $courseid) {
@@ -1946,6 +1965,7 @@ class moodle_user_picture extends moodle_html_component {
     }
 }
 
+
 /**
  * Component representing a help icon.
  *
@@ -1994,8 +2014,8 @@ class moodle_help_icon extends labelled_html_component {
      * @see lib/moodle_html_component#prepare()
      * @return void
      */
-    public function prepare() {
-        global $COURSE, $OUTPUT, $CFG;
+    public function prepare(renderer_base $output, moodle_page $page, $target) {
+        global $CFG;
 
         if (empty($this->page)) {
             throw new coding_exception('A moodle_help_icon object requires a $page parameter');
@@ -2011,8 +2031,8 @@ class moodle_help_icon extends labelled_html_component {
         $this->link->url = new moodle_url($CFG->wwwroot.'/help.php', array('module' => $this->module, 'file' => $this->page .'.html'));
 
         // fix for MDL-7734
-        if (!empty($COURSE->lang)) {
-            $this->link->url->param('forcelang', $COURSE->lang);
+        if (!empty($page->course->lang)) {
+            $this->link->url->param('forcelang', $page->course->lang);
         }
 
         // Catch references to the old text.html and emoticons.html help files that
@@ -2040,7 +2060,7 @@ class moodle_help_icon extends labelled_html_component {
             if ($image instanceof moodle_url) {
                 $this->image->src = $image->out();
             } else if ($image === true) {
-                $this->image->src = $OUTPUT->pix_url('help');
+                $this->image->src = $output->pix_url('help');
             } else if (is_string($image)) {
                 $this->image->src = $image;
             }
@@ -2056,10 +2076,10 @@ class moodle_help_icon extends labelled_html_component {
             if (!($this->image instanceof html_image)) {
                 $this->image = new html_image();
             }
-            $this->image->src = $OUTPUT->pix_url('help');
+            $this->image->src = $output->pix_url('help');
         }
 
-        parent::prepare();
+        parent::prepare($output, $page, $target);
     }
 
     /**
@@ -2091,6 +2111,7 @@ class moodle_help_icon extends labelled_html_component {
     }
 }
 
+
 /**
  * Component representing an icon linking to a Moodle page.
  *
@@ -2125,7 +2146,7 @@ class moodle_action_icon extends labelled_html_component {
      * @see lib/moodle_html_component#prepare()
      * @return void
      */
-    public function prepare() {
+    public function prepare(renderer_base $output, moodle_page $page, $target) {
         $this->image->add_class('action-icon');
 
         if (!empty($this->actions)) {
@@ -2135,7 +2156,7 @@ class moodle_action_icon extends labelled_html_component {
             unset($this->actions);
         }
 
-        parent::prepare();
+        parent::prepare($output, $page, $target);
 
         if (empty($this->image->src)) {
             throw new coding_exception('moodle_action_icon->image->src must not be empty');
@@ -2149,6 +2170,7 @@ class moodle_action_icon extends labelled_html_component {
     }
 }
 
+
 /**
  * This class represents how a block appears on a page.
  *
@@ -2242,7 +2264,7 @@ class block_contents extends moodle_html_component {
      * @see moodle_html_component::prepare()
      * @return void
      */
-    public function prepare() {
+    public function prepare(renderer_base $output, moodle_page $page, $target) {
         $this->skipid = self::$idcounter;
         self::$idcounter += 1;
         $this->add_class('sideblock');
@@ -2255,10 +2277,11 @@ class block_contents extends moodle_html_component {
         if (!empty($this->controls)) {
             $this->add_class('block_with_controls');
         }
-        parent::prepare();
+        parent::prepare($output, $page, $target);
     }
 }
 
+
 /**
  * This class represents a target for where a block can go when it is being moved.
  *
diff --git a/lib/outputrenderers.php b/lib/outputrenderers.php
index bcf1bc8e0e..7a3f0967e3 100644
--- a/lib/outputrenderers.php
+++ b/lib/outputrenderers.php
@@ -684,7 +684,7 @@ class core_renderer extends renderer_base {
      */
     function block($bc, $region) {
         $bc = clone($bc); // Avoid messing up the object passed in.
-        $bc->prepare();
+        $bc->prepare($this, $this->page, $this->target);
 
         $skiptitle = strip_tags($bc->title);
         if (empty($skiptitle)) {
@@ -822,7 +822,7 @@ class core_renderer extends renderer_base {
                 return $this->link_to_popup($link);
             }
 
-            $link->prepare();
+            $link->prepare($this, $this->page, $this->target);
             $this->prepare_event_handlers($link);
 
             // A disabled link is rendered as formatted text
@@ -912,7 +912,7 @@ class core_renderer extends renderer_base {
             throw new coding_exception('$OUTPUT->button($form) requires $form to have a button (html_button) value');
         }
         $form = clone($form);
-        $form->button->prepare();
+        $form->button->prepare($this, $this->page, $this->target);
 
         $this->prepare_event_handlers($form->button);
 
@@ -940,7 +940,7 @@ class core_renderer extends renderer_base {
      */
     public function form($form, $contents=null) {
         $form = clone($form);
-        $form->prepare();
+        $form->prepare($this, $this->page, $this->target);
         $this->prepare_event_handlers($form);
         $buttonoutput = null;
 
@@ -949,7 +949,7 @@ class core_renderer extends renderer_base {
         } else if (empty($contents)) {
             $contents = $this->output_empty_tag('input', array('type' => 'submit', 'value' => get_string('ok')));
         } else if (!empty($form->button)) {
-            $form->button->prepare();
+            $form->button->prepare($this, $this->page, $this->target);
             $this->prepare_event_handlers($form->button);
 
             $buttonattributes = array('class' => $form->button->get_classes_string(),
@@ -1023,7 +1023,7 @@ class core_renderer extends renderer_base {
      */
     public function action_icon($icon) {
         $icon = clone($icon);
-        $icon->prepare();
+        $icon->prepare($this, $this->page, $this->target);
         $imageoutput = $this->image($icon->image);
 
         if ($icon->linktext) {
@@ -1060,7 +1060,7 @@ class core_renderer extends renderer_base {
     public function help_icon($icon) {
         global $COURSE;
         $icon = clone($icon);
-        $icon->prepare();
+        $icon->prepare($this, $this->page, $this->target);
 
         $popup = new popup_action('click', $icon->link->url);
         $icon->link->add_action($popup);
@@ -1102,7 +1102,7 @@ class core_renderer extends renderer_base {
             }
         }
 
-        $link->prepare();
+        $link->prepare($this, $this->page, $this->target);
         $this->prepare_event_handlers($link);
 
         if (empty($link->url)) {
@@ -1134,7 +1134,7 @@ class core_renderer extends renderer_base {
             $image->src = $this->pix_url('spacer')->out(false, array(), false);
         }
 
-        $image->prepare();
+        $image->prepare($this, $this->page, $this->target);
         $image->add_class('spacer');
 
         $output = $this->image($image);
@@ -1155,7 +1155,7 @@ class core_renderer extends renderer_base {
         }
 
         $image = clone($image);
-        $image->prepare();
+        $image->prepare($this, $this->page, $this->target);
 
         $this->prepare_event_handlers($image);
 
@@ -1210,7 +1210,7 @@ class core_renderer extends renderer_base {
             $userpic = clone($userpic);
         }
 
-        $userpic->prepare();
+        $userpic->prepare($this, $this->page, $this->target);
 
         $output = $this->image($userpic->image);
 
@@ -1287,7 +1287,7 @@ class core_renderer extends renderer_base {
      */
     public function htmllist($list) {
         $list = clone($list);
-        $list->prepare();
+        $list->prepare($this, $this->page, $this->target);
 
         $this->prepare_event_handlers($list);
 
@@ -1305,7 +1305,7 @@ class core_renderer extends renderer_base {
                 $output .= $this->htmllist($listitem) . "\n";
                 $output .= $this->output_end_tag('li') . "\n";
             } else if ($listitem instanceof html_list_item) {
-                $listitem->prepare();
+                $listitem->prepare($this, $this->page, $this->target);
                 $this->prepare_event_handlers($listitem);
                 $output .= $this->output_tag('li', array('class' => $listitem->get_classes_string()), $listitem->value) . "\n";
             } else {
@@ -1336,7 +1336,7 @@ class core_renderer extends renderer_base {
         }
 
         $span = clone($span);
-        $span->prepare();
+        $span->prepare($this, $this->page, $this->target);
         $this->prepare_event_handlers($span);
         $attributes = array('class' => $span->get_classes_string(),
                             'alt' => $span->alt,
@@ -1362,7 +1362,7 @@ class core_renderer extends renderer_base {
         $closeform->method = 'get';
         $closeform->button->text = $text;
         $closeform->button->add_action('click', 'close_window');
-        $closeform->button->prepare();
+        $closeform->button->prepare($this, $this->page, $this->target);
         return $this->container($this->button($closeform), 'closewindow');
     }
 
@@ -1399,7 +1399,7 @@ class core_renderer extends renderer_base {
      */
     public function select($select) {
         $select = clone($select);
-        $select->prepare();
+        $select->prepare($this, $this->page, $this->target);
 
         $this->prepare_event_handlers($select);
 
@@ -1496,7 +1496,7 @@ class core_renderer extends renderer_base {
             throw new coding_exception('$OUTPUT->radio($option) only accepts a html_select_option object as param.');
         }
         $option = clone($option);
-        $option->prepare();
+        $option->prepare($this, $this->page, $this->target);
         $option->label->for = $option->id;
         $this->prepare_event_handlers($option);
 
@@ -1535,7 +1535,7 @@ class core_renderer extends renderer_base {
             throw new coding_exception('$OUTPUT->checkbox($option) only accepts a html_select_option object as param.');
         }
         $option = clone($option);
-        $option->prepare();
+        $option->prepare($this, $this->page, $this->target);
 
         $option->label->for = $option->id;
         $this->prepare_event_handlers($option);
@@ -1573,7 +1573,7 @@ class core_renderer extends renderer_base {
      */
     public function select_option($option) {
         $option = clone($option);
-        $option->prepare();
+        $option->prepare($this, $this->page, $this->target);
         $this->prepare_event_handlers($option);
 
         if ($option instanceof html_select_option) {
@@ -1610,7 +1610,7 @@ class core_renderer extends renderer_base {
      */
     public function field($field) {
         $field = clone($field);
-        $field->prepare();
+        $field->prepare($this, $this->page, $this->target);
         $this->prepare_event_handlers($field);
         $label = '';
         if (!empty($field->label->text)) {
@@ -1635,7 +1635,7 @@ class core_renderer extends renderer_base {
      */
     public function label($label) {
         $label = clone($label);
-        $label->prepare();
+        $label->prepare($this, $this->page, $this->target);
         $this->prepare_event_handlers($label);
         return $this->output_tag('label', array('for' => $label->for, 'class' => $label->get_classes_string()), $label->text);
     }
@@ -1767,7 +1767,7 @@ class core_renderer extends renderer_base {
     public function paging_bar($pagingbar) {
         $output = '';
         $pagingbar = clone($pagingbar);
-        $pagingbar->prepare();
+        $pagingbar->prepare($this, $this->page, $this->target);
 
         if ($pagingbar->totalcount > $pagingbar->perpage) {
             $output .= get_string('page') . ':';
@@ -1808,7 +1808,7 @@ class core_renderer extends renderer_base {
      */
     public function table(html_table $table) {
         $table = clone($table);
-        $table->prepare();
+        $table->prepare($this, $this->page, $this->target);
         $attributes = array(
                 'id'            => $table->id,
                 'width'         => $table->width,
-- 
2.39.5