/**
* Display the file resource
*
* Displays a file resource embedded, in a frame, or in a popup.
* Output depends on type of file resource.
*
* @param CFG global object
*/
function display()
{
global $CFG, $THEME, $USER;
require_once $CFG->libdir . '/filelib.php';
/// Set up generic stuff first, including checking for access
parent::display();
/// Set up some shorthand variables
$cm = $this->cm;
$course = $this->course;
$resource = $this->resource;
/// Fetch parameters
$inpopup = optional_param('inpopup', 0, PARAM_BOOL);
$page = optional_param('page', 0, PARAM_INT);
$frameset = optional_param('frameset', '', PARAM_ALPHA);
/// Init some variables
$errorcode = 0;
$buttontext = 0;
$querystring = '';
$resourcetype = '';
$mimetype = mimeinfo("type", $resource->reference);
$pagetitle = strip_tags($course->shortname . ': ' . format_string($resource->name));
$formatoptions = new object();
$formatoptions->noclean = true;
/// Cache this per request
static $items;
/// Check for errors
$errorcode = $this->check4errors($resource->reference, $course, $resource);
/// If there are any error, show it instead of the resource page
if ($errorcode) {
if (!has_capability('moodle/course:activityvisibility', get_context_instance(CONTEXT_COURSE, $course->id))) {
/// Resource not available page
$errortext = get_string('resourcenotavailable', 'resource');
} else {
/// Depending of the error, show different messages and pages
if ($errorcode == 1) {
$errortext = get_string('invalidfiletype', 'error', $resource->reference);
} else {
if ($errorcode == 2) {
$errortext = get_string('filenotfound', 'error', $resource->reference);
} else {
if ($errorcode == 3) {
$errortext = get_string('packagenotdeplyed', 'resource');
} else {
if ($errorcode == 4) {
$errortext = get_string('packagechanged', 'resource');
} else {
if ($errorcode == 5) {
$errortext = get_string('packagenotdeplyed', 'resource');
// no button though since from repository.
}
}
}
}
}
}
/// Display the error and exit
if ($inpopup) {
print_header($pagetitle, $course->fullname . ' : ' . $resource->name);
} else {
$navigation = build_navigation($this->navlinks, $cm);
print_header($pagetitle, $course->fullname, $navigation, "", "", true, update_module_button($cm->id, $course->id, $this->strresource), user_login_string($course) . '<hr style="width:95%">' . navmenu($course, $cm));
}
print_simple_box_start('center', '60%');
echo '<p align="center">' . $errortext . '</p>';
/// If errors were 3 or 4 and isteacheredit(), show the deploy button
if (has_capability('moodle/course:manageactivities', get_context_instance(CONTEXT_COURSE, $course->id)) && ($errorcode == 3 || $errorcode == 4)) {
$link = 'type/ims/deploy.php';
$options['courseid'] = $course->id;
$options['cmid'] = $cm->id;
$options['file'] = $resource->reference;
$options['sesskey'] = $USER->sesskey;
$options['inpopup'] = $inpopup;
if ($errorcode == 3) {
$label = get_string('deploy', 'resource');
} else {
if ($errorcode == 4) {
$label = get_string('redeploy', 'resource');
}
}
$method = 'post';
/// Let's go with the button
echo '<center>';
print_single_button($link, $options, $label, $method);
echo '</center>';
}
print_simple_box_end();
/// Close button if inpopup
if ($inpopup) {
close_window_button();
}
print_footer();
exit;
}
/// Load serialized IMS CP index to memory only once.
if (empty($items)) {
if (!$this->isrepository) {
$resourcedir = $CFG->dataroot . '/' . $course->id . '/' . $CFG->moddata . '/resource/' . $resource->id;
} else {
$resourcedir = $CFG->repository . $resource->reference;
}
if (!($items = ims_load_serialized_file($resourcedir . '/moodle_inx.ser'))) {
error(get_string('errorreadingfile', 'error', 'moodle_inx.ser'));
}
}
/// Check whether this is supposed to be a popup, but was called directly
if (empty($frameset) && $resource->popup && !$inpopup) {
/// Make a page and a pop-up window
$navigation = build_navigation($this->navlinks, $cm);
print_header($pagetitle, $course->fullname, $navigation, "", "", true, update_module_button($cm->id, $course->id, $this->strresource), user_login_string($course) . '<hr style="width:95%">' . navmenu($course, $cm));
echo "\n<script type=\"text/javascript\">";
echo "\n<!--\n";
echo "openpopup('/mod/resource/view.php?inpopup=true&id={$cm->id}','resource{$resource->id}','{$resource->popup}');\n";
echo "\n-->\n";
echo '</script>';
if (trim(strip_tags($resource->summary))) {
print_simple_box(format_text($resource->summary, FORMAT_MOODLE, $formatoptions), "center");
}
$link = "<a href=\"{$CFG->wwwroot}/mod/resource/view.php?inpopup=true&id={$cm->id}\" target=\"resource{$resource->id}\" onclick=\"return openpopup('/mod/resource/view.php?inpopup=true&id={$cm->id}', 'resource{$resource->id}','{$resource->popup}');\">" . format_string($resource->name, true) . "</a>";
echo "<p> </p>";
echo '<p align="center">';
print_string('popupresource', 'resource');
echo '<br />';
print_string('popupresourcelink', 'resource', $link);
echo "</p>";
print_footer($course);
exit;
}
/// No frames or framesets anymore, except iframe. in print_ims, iframe filled.
/// needs callback to this file to display table of contents in the iframe so
/// $frameset = 'toc' leads to output of toc and blank or 'ims' produces the
/// iframe.
if (empty($frameset) || $frameset == 'ims') {
/// Conditional argument to pass to IMS JavaScript. Need to be global to retrieve it from our custom javascript! :-(
global $jsarg;
$jsarg = 'false';
if (!empty($this->parameters->navigationmenu)) {
$jsarg = 'true';
}
/// Define $CFG->javascript to use our custom javascript. Save the original one to add it from ours. Global too! :-(
global $standard_javascript;
$standard_javascript = $CFG->javascript;
// Save original javascript file
$CFG->javascript = $CFG->dirroot . '/mod/resource/type/ims/javascript.php';
//Use our custom IMS javascript code
/// moodle header
if ($resource->popup) {
//print_header($pagetitle, $course->fullname.' : '.$resource->name);
print_header();
} else {
$navigation = build_navigation($this->navlinks, $cm);
print_header($pagetitle, $course->fullname, $navigation, "", "", true, update_module_button($cm->id, $course->id, $this->strresource), user_login_string($course) . '<hr style="width:95%">' . navmenu($course, $cm, "parent"));
}
/// content - this produces everything else
$this->print_ims($cm, $course, $items, $resource, $page);
print_footer('empty');
/// log it.
add_to_log($course->id, "resource", "view", "view.php?id={$cm->id}", $resource->id, $cm->id);
exit;
}
if ($frameset == 'toc') {
print_header();
$this->print_toc($items, $resource, $page);
echo '</div></div></body></html>';
exit;
}
}
$page = optional_param('page', 0, PARAM_INT);
/// Calculate the path of the IMS CP to be displayed
$deploydir = $CFG->repository . '/' . $directory;
/// Confirm that the IMS package has been deployed. Hash not generated
/// for repository ones.
if (!file_exists($deploydir . '/moodle_inx.ser')) {
$errortext = "Not Deployed";
print_header();
print_simple_box_start('center', '60%');
echo '<p align="center">' . $errortext . '</p>';
print_footer();
exit;
}
/// Load serialized IMS CP index to memory only once.
if (empty($items)) {
if (!($items = ims_load_serialized_file($deploydir . '/moodle_inx.ser'))) {
error(get_string('errorreadingfile', 'error', 'moodle_inx.ser'));
}
}
/// fast forward to first non-index page
while (empty($items[$page]->href)) {
$page++;
}
/// Select direction
if (get_string('thisdirection') == 'rtl') {
$direction = ' dir="rtl"';
} else {
$direction = ' dir="ltr"';
}
/// Conditional argument to pass to IMS JavaScript. Need to be global to retrieve it from our custom javascript! :-(
global $jsarg;
/// Loops though dir building a list of all relevent entries. Ignores files.
/// Asks for deploy if admin user AND no serialized file found.
while (false !== ($filename = readdir($repository_dir))) {
if ($filename != '.' && $filename != '..' && is_dir("{$CFG->repository}/{$directory}/{$filename}")) {
unset($item);
$item->type = '';
$item->name = 0;
$item->path = "{$directory}/{$filename}";
/// No manifest => normal, browsable directory.
if (!file_exists("{$CFG->repository}/{$item->path}/imsmanifest.xml")) {
$item->type = 'directory';
$item->name = $filename;
} else {
if (file_exists("{$CFG->repository}/{$item->path}/moodle_inx.ser")) {
$item->type = 'deployed';
$index = ims_load_serialized_file("{$CFG->repository}/{$item->path}/moodle_inx.ser");
$item->name = $index['title'];
} else {
$item->type = 'not deployed';
$item->name = $filename;
}
}
$items[] = $item;
}
}
closedir($repository_dir);
/// Prints the toolbar.
echo '<div id="ims_toolbar" style="padding:10px;">';
ims_print_crumbtrail($directory, $choose);
/// If admin, add extra buttons - redeploy & help.
if (has_capability('moodle/site:config', get_context_instance(CONTEXT_SYSTEM, SITEID))) {
