first commit

grade/classes/output/action_bar.php

@@ -0,0 +1,49 @@
+<?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/>.
+
+namespace core_grades\output;
+
+use templatable;
+use renderable;
+
+/**
+ * The base class for the action bar in the gradebook pages.
+ *
+ * @package    core_grades
+ * @copyright  2021 Mihail Geshoski <mihail@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+abstract class action_bar implements templatable, renderable {
+
+    /** @var \context $context The context object. */
+    protected $context;
+
+    /**
+     * The class constructor.
+     *
+     * @param \context $context The context object.
+     */
+    public function __construct(\context $context) {
+        $this->context = $context;
+    }
+
+    /**
+     * Returns the template for the actions bar.
+     *
+     * @return string
+     */
+    abstract public function get_template(): string;
+}

grade/classes/output/course_outcomes_action_bar.php

@@ -0,0 +1,65 @@
+<?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/>.
+
+namespace core_grades\output;
+
+use moodle_url;
+
+/**
+ * Renderable class for the action bar elements in the gradebook course outcomes page.
+ *
+ * @package    core_grades
+ * @copyright  2021 Mihail Geshoski <mihail@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class course_outcomes_action_bar extends action_bar {
+
+    /**
+     * Returns the template for the action bar.
+     *
+     * @return string
+     */
+    public function get_template(): string {
+        return 'core_grades/course_outcomes_action_bar';
+    }
+
+    /**
+     * Export the data for the mustache template.
+     *
+     * @param \renderer_base $output renderer to be used to render the action bar elements.
+     * @return array
+     */
+    public function export_for_template(\renderer_base $output): array {
+        if ($this->context->contextlevel !== CONTEXT_COURSE) {
+            return [];
+        }
+        $courseid = $this->context->instanceid;
+        // Get the data used to output the general navigation selector.
+        $generalnavselector = new general_action_bar($this->context,
+            new moodle_url('/grade/edit/outcome/course.php', ['id' => $courseid]), 'outcome', 'course');
+        $data = $generalnavselector->export_for_template($output);
+
+        if (has_capability('moodle/grade:manageoutcomes', $this->context)) {
+            // Add a button to the action bar with a link to the 'manage outcomes' page.
+            $manageoutcomeslink = new moodle_url('/grade/edit/outcome/index.php', ['id' => $courseid]);
+            $manageoutcomesbutton = new \single_button($manageoutcomeslink, get_string('manageoutcomes', 'grades'),
+                'get', \single_button::BUTTON_PRIMARY);
+            $data['manageoutcomesbutton'] = $manageoutcomesbutton->export_for_template($output);
+        }
+
+        return $data;
+    }
+}

grade/classes/output/export_action_bar.php

@@ -0,0 +1,103 @@
+<?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/>.
+
+namespace core_grades\output;
+
+use moodle_url;
+
+/**
+ * Renderable class for the action bar elements in the gradebook export pages.
+ *
+ * @package    core_grades
+ * @copyright  2021 Mihail Geshoski <mihail@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class export_action_bar extends action_bar {
+
+    /** @var string $activeplugin The plugin of the current export grades page (xml, ods, ...). */
+    protected $activeplugin;
+
+    /**
+     * The class constructor.
+     *
+     * @param \context $context The context object.
+     * @param null $unused This parameter has been deprecated since 4.1 and should not be used anymore.
+     * @param string $activeplugin The plugin of the current export grades page (xml, ods, ...).
+     */
+    public function __construct(\context $context, $unused, string $activeplugin) {
+        if ($unused !== null) {
+            debugging('Deprecated argument passed to ' . __FUNCTION__, DEBUG_DEVELOPER);
+        }
+        parent::__construct($context);
+        $this->activeplugin = $activeplugin;
+    }
+
+    /**
+     * Returns the template for the action bar.
+     *
+     * @return string
+     */
+    public function get_template(): string {
+        return 'core_grades/export_action_bar';
+    }
+
+    /**
+     * Export the data for the mustache template.
+     *
+     * @param \renderer_base $output renderer to be used to render the action bar elements.
+     * @return array
+     */
+    public function export_for_template(\renderer_base $output): array {
+        if ($this->context->contextlevel !== CONTEXT_COURSE) {
+            return [];
+        }
+        $courseid = $this->context->instanceid;
+        // Get the data used to output the general navigation selector.
+        $generalnavselector = new general_action_bar($this->context,
+            new moodle_url('/grade/export/index.php', ['id' => $courseid]), 'export', $this->activeplugin);
+        $data = $generalnavselector->export_for_template($output);
+
+        // Get all grades export plugins. If there isn't any available export plugins there is no need to create and
+        // display the exports navigation selector menu. Therefore, return only the current data.
+        if (!$exports = \grade_helper::get_plugins_export($courseid)) {
+            return $data;
+        }
+
+        // If exports key management is enabled, always display this item at the end of the list.
+        if (array_key_exists('keymanager', $exports)) {
+            $keymanager = $exports['keymanager'];
+            unset($exports['keymanager']);
+            $exports['keymanager'] = $keymanager;
+        }
+
+        $exportsmenu = [];
+        $exportactiveurl = null;
+        // Generate the data for the exports navigation selector menu.
+        foreach ($exports as $export) {
+            $exportsmenu[$export->link->out()] = $export->string;
+            if ($export->id == $this->activeplugin) {
+                $exportactiveurl = $export->link->out();
+            }
+        }
+
+        // This navigation selector menu will contain the links to all available grade export plugin pages.
+        $exportsurlselect = new \core\output\select_menu('exportas', $exportsmenu, $exportactiveurl);
+        $exportsurlselect->set_label(get_string('exportas', 'grades'));
+        $data['exportselector'] = $exportsurlselect->export_for_template($output);
+
+        return $data;
+    }
+}

grade/classes/output/export_key_manager_action_bar.php

@@ -0,0 +1,62 @@
+<?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/>.
+
+namespace core_grades\output;
+
+use moodle_url;
+
+/**
+ * Renderable class for the action bar elements in the gradebook exports key manager page.
+ *
+ * @package    core_grades
+ * @copyright  2021 Mihail Geshoski <mihail@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class export_key_manager_action_bar extends action_bar {
+
+    /**
+     * Returns the template for the action bar.
+     *
+     * @return string
+     */
+    public function get_template(): string {
+        return 'core_grades/export_key_manager_action_bar';
+    }
+
+    /**
+     * Export the data for the mustache template.
+     *
+     * @param \renderer_base $output renderer to be used to render the action bar elements.
+     * @return array
+     */
+    public function export_for_template(\renderer_base $output): array {
+        if ($this->context->contextlevel !== CONTEXT_COURSE) {
+            return [];
+        }
+        $courseid = $this->context->instanceid;
+        // Get the data used to output the general navigation selector and exports navigation selector.
+        $exportnavselectors = new export_action_bar($this->context, null, 'keymanager');
+        $data = $exportnavselectors->export_for_template($output);
+
+        // Add a button to the action bar with a link to the 'add user key' page.
+        $adduserkeylink = new moodle_url('/grade/export/key.php', ['courseid' => $courseid]);
+        $adduserkeybutton = new \single_button($adduserkeylink, get_string('adduserkey', 'userkey'),
+            'get', \single_button::BUTTON_PRIMARY);
+        $data['adduserkeybutton'] = $adduserkeybutton->export_for_template($output);
+
+        return $data;
+    }
+}

grade/classes/output/export_publish_action_bar.php

@@ -0,0 +1,73 @@
+<?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/>.
+
+namespace core_grades\output;
+
+use moodle_url;
+
+/**
+ * Renderable class for the action bar elements in the gradebook publish export page.
+ *
+ * @package    core_grades
+ * @copyright  2021 Mihail Geshoski <mihail@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class export_publish_action_bar extends action_bar {
+
+    /** @var string $activeplugin The plugin of the current export grades page (xml, ods, ...). */
+    protected $activeplugin;
+
+    /**
+     * The class constructor.
+     *
+     * @param \context $context The context object.
+     * @param string $activeplugin The plugin of the current export grades page (xml, ods, ...).
+     */
+    public function __construct(\context $context, string $activeplugin) {
+        parent::__construct($context);
+        $this->activeplugin = $activeplugin;
+    }
+
+    /**
+     * Returns the template for the action bar.
+     *
+     * @return string
+     */
+    public function get_template(): string {
+        return 'core_grades/export_publish_action_bar';
+    }
+
+    /**
+     * Export the data for the mustache template.
+     *
+     * @param \renderer_base $output renderer to be used to render the action bar elements.
+     * @return array
+     */
+    public function export_for_template(\renderer_base $output): array {
+        if ($this->context->contextlevel !== CONTEXT_COURSE) {
+            return [];
+        }
+        $courseid = $this->context->instanceid;
+
+        // Add a back button to the action bar.
+        $backlink = new moodle_url("/grade/export/{$this->activeplugin}/index.php", ['id' => $courseid]);
+        $backbutton = new \single_button($backlink, get_string('back'), 'get');
+
+        return [
+            'backbutton' => $backbutton->export_for_template($output)
+        ];
+    }
+}

grade/classes/output/general_action_bar.php

@@ -0,0 +1,195 @@
+<?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/>.
+
+namespace core_grades\output;
+
+use moodle_url;
+use core\output\select_menu;
+
+/**
+ * Renderable class for the general action bar in the gradebook pages.
+ *
+ * This class is responsible for rendering the general navigation select menu in the gradebook pages.
+ *
+ * @package    core_grades
+ * @copyright  2021 Mihail Geshoski <mihail@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class general_action_bar extends action_bar {
+
+    /** @var moodle_url $activeurl The URL that should be set as active in the URL selector element. */
+    protected $activeurl;
+
+    /**
+     * The type of the current gradebook page (report, settings, import, export, scales, outcomes, letters).
+     *
+     * @var string $activetype
+     */
+    protected $activetype;
+
+    /** @var string $activeplugin The plugin of the current gradebook page (grader, fullview, ...). */
+    protected $activeplugin;
+
+    /**
+     * The class constructor.
+     *
+     * @param \context $context The context object.
+     * @param moodle_url $activeurl The URL that should be set as active in the URL selector element.
+     * @param string $activetype The type of the current gradebook page (report, settings, import, export, scales,
+     *                           outcomes, letters).
+     * @param string $activeplugin The plugin of the current gradebook page (grader, fullview, ...).
+     */
+    public function __construct(\context $context, moodle_url $activeurl, string $activetype, string $activeplugin) {
+        parent::__construct($context);
+        $this->activeurl = $activeurl;
+        $this->activetype = $activetype;
+        $this->activeplugin = $activeplugin;
+    }
+
+    /**
+     * Export the data for the mustache template.
+     *
+     * @param \renderer_base $output renderer to be used to render the action bar elements.
+     * @return array
+     */
+    public function export_for_template(\renderer_base $output): array {
+        $selectmenu = $this->get_action_selector();
+
+        if (is_null($selectmenu)) {
+            return [];
+        }
+
+        return [
+            'generalnavselector' => $selectmenu->export_for_template($output),
+        ];
+    }
+
+    /**
+     * Returns the template for the action bar.
+     *
+     * @return string
+     */
+    public function get_template(): string {
+        return 'core_grades/general_action_bar';
+    }
+
+    /**
+     * Returns the URL selector object.
+     *
+     * @return \select_menu|null The URL select object.
+     */
+    private function get_action_selector(): ?select_menu {
+        if ($this->context->contextlevel !== CONTEXT_COURSE) {
+            return null;
+        }
+        $courseid = $this->context->instanceid;
+        $plugininfo = grade_get_plugin_info($courseid, $this->activetype, $this->activeplugin);
+        $menu = [];
+        $viewgroup = [];
+        $setupgroup = [];
+        $moregroup = [];
+
+        foreach ($plugininfo as $plugintype => $plugins) {
+            // Skip if the plugintype value is 'strings'. This particular item only returns an array of strings
+            // which we do not need.
+            if ($plugintype == 'strings') {
+                continue;
+            }
+
+            // If $plugins is actually the definition of a child-less parent link.
+            if (!empty($plugins->id)) {
+                $string = $plugins->string;
+                if (!empty($plugininfo[$this->activetype]->parent)) {
+                    $string = $plugininfo[$this->activetype]->parent->string;
+                }
+                $menu[$plugins->link->out(false)] = $string;
+                continue;
+            }
+
+            foreach ($plugins as $key => $plugin) {
+                // Depending on the plugin type, include the plugin to the appropriate item group for the URL selector
+                // element.
+                switch ($plugintype) {
+                    case 'report':
+                        $viewgroup[$plugin->link->out(false)] = $plugin->string;
+                        break;
+                    case 'settings':
+                        $setupgroup[$plugin->link->out(false)] = $plugin->string;
+                        break;
+                    case 'scale':
+                        // We only need the link to the 'view scales' page, otherwise skip and continue to the next
+                        // plugin.
+                        if ($key !== 'view') {
+                            continue 2;
+                        }
+                        $moregroup[$plugin->link->out(false)] = get_string('scales');
+                        break;
+                    case 'outcome':
+                        // We only need the link to the 'outcomes used in course' page, otherwise skip and continue to
+                        // the next plugin.
+                        if ($key !== 'course') {
+                            continue 2;
+                        }
+                        $moregroup[$plugin->link->out(false)] = get_string('outcomes', 'grades');
+                        break;
+                    case 'letter':
+                        // We only need the link to the 'view grade letters' page, otherwise skip and continue to the
+                        // next plugin.
+                        if ($key !== 'view') {
+                            continue 2;
+                        }
+                        $moregroup[$plugin->link->out(false)] = get_string('gradeletters', 'grades');
+                        break;
+                    case 'import':
+                        $link = new moodle_url('/grade/import/index.php', ['id' => $courseid]);
+                        // If the link to the grade import options is already added to the group, skip and continue to
+                        // the next plugin.
+                        if (array_key_exists($link->out(false), $moregroup)) {
+                            continue 2;
+                        }
+                        $moregroup[$link->out(false)] = get_string('import', 'grades');
+                        break;
+                    case 'export':
+                        $link = new moodle_url('/grade/export/index.php', ['id' => $courseid]);
+                        // If the link to the grade export options is already added to the group, skip and continue to
+                        // the next plugin.
+                        if (array_key_exists($link->out(false), $moregroup)) {
+                            continue 2;
+                        }
+                        $moregroup[$link->out(false)] = get_string('export', 'grades');
+                        break;
+                }
+            }
+        }
+
+        if (!empty($viewgroup)) {
+            $menu[][get_string('view')] = $viewgroup;
+        }
+
+        if (!empty($setupgroup)) {
+            $menu[][get_string('setup', 'grades')] = $setupgroup;
+        }
+
+        if (!empty($moregroup)) {
+            $menu[][get_string('moremenu')] = $moregroup;
+        }
+
+        $selectmenu = new select_menu('gradesactionselect', $menu, $this->activeurl->out(false));
+        $selectmenu->set_label(get_string('gradebooknavigationmenu', 'grades'), ['class' => 'sr-only']);
+
+        return $selectmenu;
+    }
+}

grade/classes/output/grade_letters_action_bar.php

@@ -0,0 +1,61 @@
+<?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/>.
+
+namespace core_grades\output;
+
+use moodle_url;
+
+/**
+ * Renderable class for the action bar elements in the grade letters page.
+ *
+ * @package    core_grades
+ * @copyright  2021 Mihail Geshoski <mihail@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class grade_letters_action_bar extends action_bar {
+
+    /**
+     * Returns the template for the action bar.
+     *
+     * @return string
+     */
+    public function get_template(): string {
+        return 'core_grades/grade_letters_action_bar';
+    }
+
+    /**
+     * Export the data for the mustache template.
+     *
+     * @param \renderer_base $output renderer to be used to render the action bar elements.
+     * @return array
+     */
+    public function export_for_template(\renderer_base $output): array {
+        $data = [];
+        // If in the course context, we should display the general navigation selector in gradebook.
+        if ($this->context->contextlevel === CONTEXT_COURSE) {
+            // Get the data used to output the general navigation selector.
+            $generalnavselector = new general_action_bar($this->context, new moodle_url('/grade/edit/letter/index.php',
+                ['id' => $this->context->id]), 'letter', 'view');
+            $data = $generalnavselector->export_for_template($output);
+        }
+        // Add a button to the action bar with a link to the 'edit grade letters' page.
+        $editbuttonlink = new moodle_url('/grade/edit/letter/index.php', ['id' => $this->context->id, 'edit' => 1]);
+        $editbutton = new \single_button($editbuttonlink, get_string('edit'), 'get', \single_button::BUTTON_PRIMARY);
+        $data['editbutton'] = $editbutton->export_for_template($output);
+
+        return $data;
+    }
+}

grade/classes/output/gradebook_setup_action_bar.php

@@ -0,0 +1,108 @@
+<?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/>.
+
+namespace core_grades\output;
+
+use moodle_url;
+use html_writer;
+
+/**
+ * Renderable class for the action bar elements in the gradebook setup pages.
+ *
+ * @package    core_grades
+ * @copyright  2021 Mihail Geshoski <mihail@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class gradebook_setup_action_bar extends action_bar {
+
+    /**
+     * Returns the template for the action bar.
+     *
+     * @return string
+     */
+    public function get_template(): string {
+        return 'core_grades/gradebook_setup_action_bar';
+    }
+
+    /**
+     * Export the data for the mustache template.
+     *
+     * @param \renderer_base $output renderer to be used to render the action bar elements.
+     * @return array
+     */
+    public function export_for_template(\renderer_base $output): array {
+        global $CFG;
+
+        if ($this->context->contextlevel !== CONTEXT_COURSE) {
+            return [];
+        }
+        $courseid = $this->context->instanceid;
+        // Get the data used to output the general navigation selector.
+        $generalnavselector = new general_action_bar($this->context,
+            new moodle_url('/grade/edit/tree/index.php', ['id' => $courseid]), 'settings', 'setup');
+        $data = $generalnavselector->export_for_template($output);
+        $actions = [];
+        $additemurl = new moodle_url('#');
+
+        // Add a button to the action bar dropdown with a link to the 'add grade item' modal.
+        $actions[] = new \action_menu_link_secondary(
+            $additemurl,
+            null,
+            get_string('additem', 'grades'),
+            [
+                'data-courseid' => $courseid,
+                'data-itemid' => -1,
+                'data-trigger' => 'add-item-form',
+                'data-gprplugin' => 'tree',
+            ]
+        );
+
+        // If outcomes are enabled, add a button to the action bar dropdown with a link to the 'add outcome item' modal.
+        if (!empty($CFG->enableoutcomes) && count(\grade_outcome::fetch_all_available($courseid)) > 0) {
+            // Add a button to the action bar dropdown with a link to the 'add outcome item' modal.
+            $actions[] = new \action_menu_link_secondary(
+                $additemurl,
+                null,
+                get_string('addoutcomeitem', 'grades'),
+                [
+                    'data-courseid' => $courseid,
+                    'data-itemid' => -1,
+                    'data-trigger' => 'add-outcome-form',
+                    'data-gprplugin' => 'tree',
+                ]
+            );
+        }
+
+        // Add a button to the action bar dropdown with a link to the 'add category' modal.
+        $actions[] = new \action_menu_link_secondary(
+            $additemurl,
+            null,
+            get_string('addcategory', 'grades'),
+            [
+                'data-courseid' => $courseid,
+                'data-category' => -1,
+                'data-trigger' => 'add-category-form',
+                'data-gprplugin' => 'tree',
+            ]
+        );
+
+        $addmenu = new \action_menu($actions);
+        $addmenu->set_menu_trigger(get_string('add'), 'btn font-weight-bold');
+        $data['addmenu'] = $addmenu->export_for_template($output);
+
+        return $data;
+    }
+}

grade/classes/output/import_action_bar.php

@@ -0,0 +1,103 @@
+<?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/>.
+
+namespace core_grades\output;
+
+use moodle_url;
+
+/**
+ * Renderable class for the action bar elements in the gradebook import pages.
+ *
+ * @package    core_grades
+ * @copyright  2021 Mihail Geshoski <mihail@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class import_action_bar extends action_bar {
+
+    /** @var string $activeplugin The plugin of the current import grades page (xml, csv, ...). */
+    protected $activeplugin;
+
+    /**
+     * The class constructor.
+     *
+     * @param \context $context The context object.
+     * @param null $unused This parameter has been deprecated since 4.1 and should not be used anymore.
+     * @param string $activeplugin The plugin of the current import grades page (xml, csv, ...).
+     */
+    public function __construct(\context $context, $unused, string $activeplugin) {
+        if ($unused !== null) {
+            debugging('Deprecated argument passed to ' . __FUNCTION__, DEBUG_DEVELOPER);
+        }
+        parent::__construct($context);
+        $this->activeplugin = $activeplugin;
+    }
+
+    /**
+     * Returns the template for the action bar.
+     *
+     * @return string
+     */
+    public function get_template(): string {
+        return 'core_grades/import_action_bar';
+    }
+
+    /**
+     * Export the data for the mustache template.
+     *
+     * @param \renderer_base $output renderer to be used to render the action bar elements.
+     * @return array
+     */
+    public function export_for_template(\renderer_base $output): array {
+        if ($this->context->contextlevel !== CONTEXT_COURSE) {
+            return [];
+        }
+        $courseid = $this->context->instanceid;
+        // Get the data used to output the general navigation selector.
+        $generalnavselector = new general_action_bar($this->context,
+            new moodle_url('/grade/import/index.php', ['id' => $courseid]), 'import', $this->activeplugin);
+        $data = $generalnavselector->export_for_template($output);
+
+        // Get all grades import plugins. If there isn't any available import plugins there is no need to create and
+        // display the imports navigation selector menu. Therefore, return only the current data.
+        if (!$imports = \grade_helper::get_plugins_import($courseid)) {
+            return $data;
+        }
+
+        // If imports key management is enabled, always display this item at the end of the list.
+        if (array_key_exists('keymanager', $imports)) {
+            $keymanager = $imports['keymanager'];
+            unset($imports['keymanager']);
+            $imports['keymanager'] = $keymanager;
+        }
+
+        $importsmenu = [];
+        $importactiveurl = null;
+        // Generate the data for the imports navigation selector menu.
+        foreach ($imports as $import) {
+            $importsmenu[$import->link->out()] = $import->string;
+            if ($import->id == $this->activeplugin) {
+                $importactiveurl = $import->link->out();
+            }
+        }
+
+        // This navigation selector menu will contain the links to all available grade export plugin pages.
+        $importsurlselect = new \core\output\select_menu('importas', $importsmenu, $importactiveurl);
+        $importsurlselect->set_label(get_string('importas', 'grades'));
+        $data['importselector'] = $importsurlselect->export_for_template($output);
+
+        return $data;
+    }
+}

grade/classes/output/import_key_manager_action_bar.php

@@ -0,0 +1,62 @@
+<?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/>.
+
+namespace core_grades\output;
+
+use moodle_url;
+
+/**
+ * Renderable class for the action bar elements in the gradebook import key manager page.
+ *
+ * @package    core_grades
+ * @copyright  2021 Mihail Geshoski <mihail@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class import_key_manager_action_bar extends action_bar {
+
+    /**
+     * Returns the template for the action bar.
+     *
+     * @return string
+     */
+    public function get_template(): string {
+        return 'core_grades/import_key_manager_action_bar';
+    }
+
+    /**
+     * Export the data for the mustache template.
+     *
+     * @param \renderer_base $output renderer to be used to render the action bar elements.
+     * @return array
+     */
+    public function export_for_template(\renderer_base $output): array {
+        if ($this->context->contextlevel !== CONTEXT_COURSE) {
+            return [];
+        }
+        $courseid = $this->context->instanceid;
+        // Get the data used to output the general navigation selector and imports navigation selector.
+        $importnavselectors = new import_action_bar($this->context, null, 'keymanager');
+        $data = $importnavselectors->export_for_template($output);
+
+        // Add a button to the action bar with a link to the 'add user key' page.
+        $adduserkeylink = new moodle_url('/grade/import/key.php', ['courseid' => $courseid]);
+        $adduserkeybutton = new \single_button($adduserkeylink, get_string('adduserkey', 'userkey'),
+            'get', \single_button::BUTTON_PRIMARY);
+        $data['adduserkeybutton'] = $adduserkeybutton->export_for_template($output);
+
+        return $data;
+    }
+}

grade/classes/output/manage_outcomes_action_bar.php

@@ -0,0 +1,95 @@
+<?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/>.
+
+namespace core_grades\output;
+
+use moodle_url;
+
+/**
+ * Renderable class for the action bar elements in the manage outcomes page.
+ *
+ * @package    core_grades
+ * @copyright  2021 Mihail Geshoski <mihail@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class manage_outcomes_action_bar extends action_bar {
+
+    /** @var bool $hasoutcomes Whether there are existing outcomes. */
+    protected $hasoutcomes;
+
+    /**
+     * The class constructor.
+     *
+     * @param \context $context The context object.
+     * @param bool $hasoutcomes Whether there are existing outcomes.
+     */
+    public function __construct(\context $context, bool $hasoutcomes) {
+        parent::__construct($context);
+        $this->hasoutcomes = $hasoutcomes;
+    }
+
+    /**
+     * Returns the template for the action bar.
+     *
+     * @return string
+     */
+    public function get_template(): string {
+        return 'core_grades/manage_outcomes_action_bar';
+    }
+
+    /**
+     * Export the data for the mustache template.
+     *
+     * @param \renderer_base $output renderer to be used to render the action bar elements.
+     * @return array
+     */
+    public function export_for_template(\renderer_base $output): array {
+        $data = [];
+        $courseid = 0;
+        // Display the following buttons only if the user is in course gradebook.
+        if ($this->context->contextlevel === CONTEXT_COURSE) {
+            $courseid = $this->context->instanceid;
+            // Add a button to the action bar with a link to the 'course outcomes' page.
+            $backlink = new moodle_url('/grade/edit/outcome/course.php', ['id' => $courseid]);
+            $backbutton = new \single_button($backlink, get_string('back'), 'get');
+            $data['backbutton'] = $backbutton->export_for_template($output);
+
+            // Add a button to the action bar with a link to the 'import outcomes' page. The import outcomes
+            // functionality is currently only available in the course context.
+            $importoutcomeslink = new moodle_url('/grade/edit/outcome/import.php', ['courseid' => $courseid]);
+            $importoutcomesbutton = new \single_button($importoutcomeslink, get_string('importoutcomes', 'grades'),
+                'get');
+            $data['importoutcomesbutton'] = $importoutcomesbutton->export_for_template($output);
+        }
+
+        // Add a button to the action bar with a link to the 'add new outcome' page.
+        $addoutcomelink = new moodle_url('/grade/edit/outcome/edit.php', ['courseid' => $courseid]);
+        $addoutcomebutton = new \single_button($addoutcomelink, get_string('outcomecreate', 'grades'),
+            'get', \single_button::BUTTON_PRIMARY);
+        $data['addoutcomebutton'] = $addoutcomebutton->export_for_template($output);
+
+        if ($this->hasoutcomes) {
+            // Add a button to the action bar which enables export of all existing outcomes.
+            $exportoutcomeslink = new moodle_url('/grade/edit/outcome/export.php',
+                ['id' => $courseid, 'sesskey' => sesskey()]);
+            $exportoutcomesbutton = new \single_button($exportoutcomeslink, get_string('exportalloutcomes', 'grades'),
+                'get');
+            $data['exportoutcomesbutton'] = $exportoutcomesbutton->export_for_template($output);
+        }
+
+        return $data;
+    }
+}

grade/classes/output/scales_action_bar.php

@@ -0,0 +1,64 @@
+<?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/>.
+
+namespace core_grades\output;
+
+use moodle_url;
+
+/**
+ * Renderable class for the action bar elements in the gradebook scales page.
+ *
+ * @package    core_grades
+ * @copyright  2021 Mihail Geshoski <mihail@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class scales_action_bar extends action_bar {
+
+    /**
+     * Returns the template for the action bar.
+     *
+     * @return string
+     */
+    public function get_template(): string {
+        return 'core_grades/scales_action_bar';
+    }
+
+    /**
+     * Export the data for the mustache template.
+     *
+     * @param \renderer_base $output renderer to be used to render the action bar elements.
+     * @return array
+     */
+    public function export_for_template(\renderer_base $output): array {
+        $data = [];
+        $courseid = 0;
+        // If in the course context, we should display the general navigation selector in gradebook.
+        if ($this->context->contextlevel === CONTEXT_COURSE) {
+            $courseid = $this->context->instanceid;
+            // Get the data used to output the general navigation selector.
+            $generalnavselector = new general_action_bar($this->context,
+                new moodle_url('/grade/edit/scale/index.php', ['id' => $courseid]), 'scale', 'scale');
+            $data = $generalnavselector->export_for_template($output);
+        }
+        // Add a button to the action bar with a link to the 'add new scale' page.
+        $addnewscalelink = new moodle_url('/grade/edit/scale/edit.php', ['courseid' => $courseid]);
+        $addnewscalebutton = new \single_button($addnewscalelink, get_string('scalescustomcreate'),
+            'get', \single_button::BUTTON_PRIMARY);
+        $data['addnewscalebutton'] = $addnewscalebutton->export_for_template($output);
+
+        return $data;
+    }
+}