/**
* Determine whether course ajax should be enabled for the specified course
*
* @param stdClass $course The course to test against
* @return boolean Whether course ajax is enabled or note
*/
function course_ajax_enabled($course)
{
global $CFG, $PAGE, $SITE;
// Ajax must be enabled globally
if (!$CFG->enableajax) {
return false;
}
// The user must be editing for AJAX to be included
if (!$PAGE->user_is_editing()) {
return false;
}
// Check that the theme suports
if (!$PAGE->theme->enablecourseajax) {
return false;
}
// Check that the course format supports ajax functionality
// The site 'format' doesn't have information on course format support
if ($SITE->id !== $course->id) {
$courseformatajaxsupport = course_format_ajax_support($course->format);
if (!$courseformatajaxsupport->capable) {
return false;
}
}
// All conditions have been met so course ajax should be enabled
return true;
}
/**
* Include the relevant javascript and language strings for the resource
* toolbox YUI module
*
* @param integer $id The ID of the course being applied to
* @param array $modules An array containing the names of the modules in
* use on the page
* @param object $config An object containing configuration parameters for ajax modules including:
* * resourceurl The URL to post changes to for resource changes
* * sectionurl The URL to post changes to for section changes
* * pageparams Additional parameters to pass through in the post
* @return void
*/
function include_course_ajax($course, $modules = array(), $config = null)
{
global $PAGE, $CFG, $USER;
// Ensure that ajax should be included
$courseformatajaxsupport = course_format_ajax_support($course->format);
if (!$CFG->enablecourseajax || !$PAGE->theme->enablecourseajax || !$CFG->enableajax || empty($USER->editing) || !$PAGE->user_is_editing() || $course->id != SITEID && !$courseformatajaxsupport->capable) {
return;
}
if (!$config) {
$config = new stdClass();
}
// The URL to use for resource changes
if (!isset($config->resourceurl)) {
$config->resourceurl = '/course/rest.php';
}
// The URL to use for section changes
if (!isset($config->sectionurl)) {
$config->sectionurl = '/course/rest.php';
}
// Any additional parameters which need to be included on page submission
if (!isset($config->pageparams)) {
$config->pageparams = array();
}
// Include toolboxes
$PAGE->requires->yui_module('moodle-course-toolboxes', 'M.course.init_resource_toolbox', array(array('courseid' => $course->id, 'ajaxurl' => $config->resourceurl, 'config' => $config)));
$PAGE->requires->yui_module('moodle-course-toolboxes', 'M.course.init_section_toolbox', array(array('courseid' => $course->id, 'format' => $course->format, 'ajaxurl' => $config->sectionurl, 'config' => $config)));
// Include course dragdrop
if ($course->id != SITEID) {
$PAGE->requires->yui_module('moodle-course-dragdrop', 'M.core_course.init_section_dragdrop', array(array('courseid' => $course->id, 'ajaxurl' => $config->sectionurl, 'config' => $config)), null, true);
$PAGE->requires->yui_module('moodle-course-dragdrop', 'M.core_course.init_resource_dragdrop', array(array('courseid' => $course->id, 'ajaxurl' => $config->resourceurl, 'config' => $config)), null, true);
}
// Include blocks dragdrop
$params = array('courseid' => $course->id, 'pagetype' => $PAGE->pagetype, 'pagelayout' => $PAGE->pagelayout, 'regions' => $PAGE->blocks->get_regions());
$PAGE->requires->yui_module('moodle-core-blocks', 'M.core_blocks.init_dragdrop', array($params), null, true);
// Require various strings for the command toolbox
$PAGE->requires->strings_for_js(array('moveleft', 'deletechecktype', 'deletechecktypename', 'show', 'hide', 'groupsnone', 'groupsvisible', 'groupsseparate', 'clicktochangeinbrackets', 'markthistopic', 'markedthistopic', 'move', 'movesection'), 'moodle');
// Include format-specific strings
if ($course->id != SITEID) {
$PAGE->requires->strings_for_js(array('showfromothers', 'hidefromothers'), 'format_' . $course->format);
}
// For confirming resource deletion we need the name of the module in question
foreach ($modules as $module => $modname) {
$PAGE->requires->string_for_js('pluginname', $module);
}
}
// are seen immediately on the navigation.
$PAGE->navigation->clear_cache();
}
}
}
} else {
$USER->editing = 0;
}
$SESSION->fromdiscussion = $CFG->wwwroot . '/course/view.php?id=' . $course->id;
if ($course->id == SITEID) {
// This course is not a real course.
redirect($CFG->wwwroot . '/');
}
// AJAX-capable course format?
$useajax = false;
$formatajax = course_format_ajax_support($course->format);
if (!empty($CFG->enablecourseajax) and $formatajax->capable and !empty($USER->editing) and ajaxenabled($formatajax->testedbrowsers) and $PAGE->theme->enablecourseajax and has_capability('moodle/course:manageactivities', $context)) {
$PAGE->requires->yui2_lib('dragdrop');
$PAGE->requires->yui2_lib('connection');
$PAGE->requires->yui2_lib('selector');
$PAGE->requires->js('/lib/ajax/block_classes.js', true);
$PAGE->requires->js('/lib/ajax/section_classes.js', true);
// Okay, global variable alert. VERY UGLY. We need to create
// this object here before the <blockname>_print_block()
// function is called, since that function needs to set some
// stuff in the javascriptportal object.
$COURSE->javascriptportal = new jsportal();
$useajax = true;
}
$CFG->blocksdrag = $useajax;
// this will add a new class to the header so we can style differently
