MDL-64706 theme_boost: Remove logo link in secure template

lib/tests/behat/securelayout.feature

@@ -0,0 +1,21 @@
+@core
+Feature: Page displaying with secure layout
+  In order to securely perform tasks
+  As a student
+  I need not to be able to exit the page using the header logo
+
+  Background:
+    # Get to the fixture page.
+    Given the following "courses" exist:
+      | fullname | shortname | format |
+      | Course 1 | C1        | topics |
+    And the following "activities" exist:
+      | activity   | name | intro                                                               | course | idnumber |
+      | label      | L1   | <a href="../lib/tests/fixtures/securetestpage.php">Fixture link</a> | C1     | label1   |
+
+  Scenario: Confirm that there is no header link
+    Given I log in as "admin"
+    And I am on "Course 1" course homepage
+    When I follow "Fixture link"
+    Then I should see "Acceptance test site" in the "nav" "css_element"
+    But "Acceptance test site" "link" should not exist

lib/tests/fixtures/securetestpage.php

@@ -0,0 +1,37 @@
+<?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/>.
+
+/**
+ * Fixture for testing secure layout pages have no nav link.
+ *
+ * @package core
+ * @copyright 2019 Luca Bösch <[email protected]>
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+require_once(__DIR__ . '/../../../config.php');
+// Behat test fixture only.
+defined('BEHAT_SITE_RUNNING') || die('Only available on Behat test server');
+
+$PAGE->set_pagelayout('secure');
+$PAGE->set_url('/lib/tests/fixtures/securetestpage.php');
+$PAGE->set_context(context_system::instance());
+
+echo $OUTPUT->header();
+
+echo $OUTPUT->heading('Hello world');
+
+echo $OUTPUT->footer();

theme/boost/templates/navbar-secure.mustache

@@ -19,18 +19,12 @@
 }}
 <nav class="fixed-top navbar navbar-light bg-white navbar-expand moodle-has-zindex">
 
-        <a href="{{{ config.wwwroot }}}" class="navbar-brand {{# output.should_display_navbar_logo }}has-logo{{/ output.should_display_navbar_logo }}
-            {{^ output.should_display_navbar_logo }}
-                d-none d-sm-inline
-            {{/ output.should_display_navbar_logo }}
-                ">
-            {{# output.should_display_navbar_logo }}
-                <span class="logo d-none d-sm-inline">
-                    <img src="{{output.get_compact_logo_url}}" alt="{{sitename}}">
-                </span>
-            {{/ output.should_display_navbar_logo }}
-            <span class="site-name d-none d-md-inline">{{{ sitename }}}</span>
-        </a>
+        {{# output.should_display_navbar_logo }}
+            <span class="logo d-none d-sm-inline">
+                <img src="{{output.get_compact_logo_url}}" alt="{{sitename}}">
+            </span>
+        {{/ output.should_display_navbar_logo }}
+        <span class="site-name d-none d-md-inline">{{{ sitename }}}</span>
 
         <ul class="nav navbar-nav ml-auto">
             <li class="nav-item">