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.
/**
* Classes representing HTML elements, used by $OUTPUT methods
*
* Please see http://docs.moodle.org/en/Developement:How_Moodle_outputs_HTML
* for an overview.
*
* @package core
* @category output
* @copyright 2009 Tim Hunt
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
/**
* Interface marking other classes as suitable for renderer_base::render()
*
* @copyright 2010 Petr Skoda (skodak) info@skodak.org
* @package core
* @category output
*/
interface renderable {
// intentionally empty
}
/**
* Interface marking other classes having the ability to export their data for use by templates.
*
* @copyright 2015 Damyon Wiese
* @package core
* @category output
* @since 2.9
*/
interface templatable {
/**
* Function to export the renderer data in a format that is suitable for a
* mustache template. This means:
* 1. No complex types - only stdClass, array, int, string, float, bool
* 2. Any additional info that is required for the template is pre-calculated (e.g. capability checks).
*
* @param renderer_base $output Used to do a final render of any components that need to be rendered for export.
* @return stdClass|array
*/
public function export_for_template(renderer_base $output);
}
/**
* Data structure representing a file picker.
*
* @copyright 2010 Dongsheng Cai
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @since Moodle 2.0
* @package core
* @category output
*/
class file_picker implements renderable {
/**
* @var stdClass An object containing options for the file picker
*/
public $options;
/**
* Constructs a file picker object.
*
* The following are possible options for the filepicker:
* - accepted_types (*)
* - return_types (FILE_INTERNAL)
* - env (filepicker)
* - client_id (uniqid)
* - itemid (0)
* - maxbytes (-1)
* - maxfiles (1)
* - buttonname (false)
*
* @param stdClass $options An object containing options for the file picker.
*/
public function __construct(stdClass $options) {
global $CFG, $USER, $PAGE;
require_once($CFG->dirroot. '/repository/lib.php');
$defaults = array(
'accepted_types'=>'*',
'return_types'=>FILE_INTERNAL,
'env' => 'filepicker',
'client_id' => uniqid(),
'itemid' => 0,
'maxbytes'=>-1,
'maxfiles'=>1,
'buttonname'=>false
);
foreach ($defaults as $key=>$value) {
if (empty($options->$key)) {
$options->$key = $value;
}
}
$options->currentfile = '';
if (!empty($options->itemid)) {
$fs = get_file_storage();
$usercontext = context_user::instance($USER->id);
if (empty($options->filename)) {
if ($files = $fs->get_area_files($usercontext->id, 'user', 'draft', $options->itemid, 'id DESC', false)) {
$file = reset($files);
}
} else {
$file = $fs->get_file($usercontext->id, 'user', 'draft', $options->itemid, $options->filepath, $options->filename);
}
if (!empty($file)) {
$options->currentfile = html_writer::link(moodle_url::make_draftfile_url($file->get_itemid(), $file->get_filepath(), $file->get_filename()), $file->get_filename());
}
}
// initilise options, getting files in root path
$this->options = initialise_filepicker($options);
// copying other options
foreach ($options as $name=>$value) {
if (!isset($this->options->$name)) {
$this->options->$name = $value;
}
}
}
}
/**
* Data structure representing a user picture.
*
* @copyright 2009 Nicolas Connault, 2010 Petr Skoda
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @since Modle 2.0
* @package core
* @category output
*/
class user_picture implements renderable {
/**
* @var stdClass A user object with at least fields all columns specified
* in $fields array constant set.
*/
public $user;
/**
* @var int The course id. Used when constructing the link to the user's
* profile, page course id used if not specified.
*/
public $courseid;
/**
* @var bool Add course profile link to image
*/
public $link = true;
/**
* @var int Size in pixels. Special values are (true/1 = 100px) and (false/0 = 35px) for backward compatibility.
* Recommended values (supporting user initials too): 16, 35, 64 and 100.
*/
public $size = 35;
/**
* @var bool Add non-blank alt-text to the image.
* Default true, set to false when image alt just duplicates text in screenreaders.
*/
public $alttext = true;
/**
* @var bool Whether or not to open the link in a popup window.
*/
public $popup = false;
/**
* @var string Image class attribute
*/
public $class = 'userpicture';
/**
* @var bool Whether to be visible to screen readers.
*/
public $visibletoscreenreaders = true;
/**
* @var bool Whether to include the fullname in the user picture link.
*/
public $includefullname = false;
/**
* @var mixed Include user authentication token. True indicates to generate a token for current user, and integer value
* indicates to generate a token for the user whose id is the value indicated.
*/
public $includetoken = false;
/**
* User picture constructor.
*
* @param stdClass $user user record with at least id, picture, imagealt, firstname and lastname set.
* It is recommended to add also contextid of the user for performance reasons.
*/
public function __construct(stdClass $user) {
global $DB;
if (empty($user->id)) {
throw new coding_exception('User id is required when printing user avatar image.');
}
// only touch the DB if we are missing data and complain loudly...
$needrec = false;
foreach (\core_user\fields::get_picture_fields() as $field) {
if (!property_exists($user, $field)) {
$needrec = true;
debugging('Missing '.$field.' property in $user object, this is a performance problem that needs to be fixed by a developer. '
.'Please use the \core_user\fields API to get the full list of required fields.', DEBUG_DEVELOPER);
break;
}
}
if ($needrec) {
$this->user = $DB->get_record('user', array('id' => $user->id),
implode(',', \core_user\fields::get_picture_fields()), MUST_EXIST);
} else {
$this->user = clone($user);
}
}
/**
* Returns a list of required user fields, useful when fetching required user info from db.
*
* In some cases we have to fetch the user data together with some other information,
* the idalias is useful there because the id would otherwise override the main
* id of the result record. Please note it has to be converted back to id before rendering.
*
* @param string $tableprefix name of database table prefix in query
* @param array $extrafields extra fields to be included in result (do not include TEXT columns because it would break SELECT DISTINCT in MSSQL and ORACLE)
* @param string $idalias alias of id field
* @param string $fieldprefix prefix to add to all columns in their aliases, does not apply to 'id'
* @return string
* @deprecated since Moodle 3.11 MDL-45242
* @see \core_user\fields
*/
public static function fields($tableprefix = '', array $extrafields = NULL, $idalias = 'id', $fieldprefix = '') {
debugging('user_picture::fields() is deprecated. Please use the \core_user\fields API instead.', DEBUG_DEVELOPER);
$userfields = \core_user\fields::for_userpic();
if ($extrafields) {
$userfields->including(...$extrafields);
}
$selects = $userfields->get_sql($tableprefix, false, $fieldprefix, $idalias, false)->selects;
if ($tableprefix === '') {
// If no table alias is specified, don't add {user}. in front of fields.
$selects = str_replace('{user}.', '', $selects);
}
// Maintain legacy behaviour where the field list was done with 'implode' and no spaces.
$selects = str_replace(', ', ',', $selects);
return $selects;
}
/**
* Extract the aliased user fields from a given record
*
* Given a record that was previously obtained using {@link self::fields()} with aliases,
* this method extracts user related unaliased fields.
*
* @param stdClass $record containing user picture fields
* @param array $extrafields extra fields included in the $record
* @param string $idalias alias of the id field
* @param string $fieldprefix prefix added to all columns in their aliases, does not apply to 'id'
* @return stdClass object with unaliased user fields
*/
public static function unalias(stdClass $record, array $extrafields = null, $idalias = 'id', $fieldprefix = '') {
if (empty($idalias)) {
$idalias = 'id';
}
$return = new stdClass();
foreach (\core_user\fields::get_picture_fields() as $field) {
if ($field === 'id') {
if (property_exists($record, $idalias)) {
$return->id = $record->{$idalias};
}
} else {
if (property_exists($record, $fieldprefix.$field)) {
$return->{$field} = $record->{$fieldprefix.$field};
}
}
}
// add extra fields if not already there
if ($extrafields) {
foreach ($extrafields as $e) {
if ($e === 'id' or property_exists($return, $e)) {
continue;
}
$return->{$e} = $record->{$fieldprefix.$e};
}
}
return $return;
}
/**
* Works out the URL for the users picture.
*
* This method is recommended as it avoids costly redirects of user pictures
* if requests are made for non-existent files etc.
*
* @param moodle_page $page
* @param renderer_base $renderer
* @return moodle_url
*/
public function get_url(moodle_page $page, renderer_base $renderer = null) {
global $CFG;
if (is_null($renderer)) {
$renderer = $page->get_renderer('core');
}
// Sort out the filename and size. Size is only required for the gravatar
// implementation presently.
if (empty($this->size)) {
$filename = 'f2';
$size = 35;
} else if ($this->size === true or $this->size == 1) {
$filename = 'f1';
$size = 100;
} else if ($this->size > 100) {
$filename = 'f3';
$size = (int)$this->size;
} else if ($this->size >= 50) {
$filename = 'f1';
$size = (int)$this->size;
} else {
$filename = 'f2';
$size = (int)$this->size;
}
$defaulturl = $renderer->image_url('u/'.$filename); // default image
if ((!empty($CFG->forcelogin) and !isloggedin()) ||
(!empty($CFG->forceloginforprofileimage) && (!isloggedin() || isguestuser()))) {
// Protect images if login required and not logged in;
// also if login is required for profile images and is not logged in or guest
// do not use require_login() because it is expensive and not suitable here anyway.
return $defaulturl;
}
// First try to detect deleted users - but do not read from database for performance reasons!
if (!empty($this->user->deleted) or strpos($this->user->email, '@') === false) {
// All deleted users should have email replaced by md5 hash,
// all active users are expected to have valid email.
return $defaulturl;
}
// Did the user upload a picture?
if ($this->user->picture > 0) {
if (!empty($this->user->contextid)) {
$contextid = $this->user->contextid;
} else {
$context = context_user::instance($this->user->id, IGNORE_MISSING);
if (!$context) {
// This must be an incorrectly deleted user, all other users have context.
return $defaulturl;
}
$contextid = $context->id;
}
$path = '/';
if (clean_param($page->theme->name, PARAM_THEME) == $page->theme->name) {
// We append the theme name to the file path if we have it so that
// in the circumstance that the profile picture is not available
// when the user actually requests it they still get the profile
// picture for the correct theme.
$path .= $page->theme->name.'/';
}
// Set the image URL to the URL for the uploaded file and return.
$url = moodle_url::make_pluginfile_url(
$contextid, 'user', 'icon', null, $path, $filename, false, $this->includetoken);
$url->param('rev', $this->user->picture);
return $url;
}
if ($this->user->picture == 0 and !empty($CFG->enablegravatar)) {
// Normalise the size variable to acceptable bounds
if ($size < 1 || $size > 512) {
$size = 35;
}
// Hash the users email address
$md5 = md5(strtolower(trim($this->user->email)));
// Build a gravatar URL with what we know.
// Find the best default image URL we can (MDL-35669)
if (empty($CFG->gravatardefaulturl)) {
$absoluteimagepath = $page->theme->resolve_image_location('u/'.$filename, 'core');
if (strpos($absoluteimagepath, $CFG->dirroot) === 0) {
$gravatardefault = $CFG->wwwroot . substr($absoluteimagepath, strlen($CFG->dirroot));
} else {
$gravatardefault = $CFG->wwwroot . '/pix/u/' . $filename . '.png';
}
} else {
$gravatardefault = $CFG->gravatardefaulturl;
}
// If the currently requested page is https then we'll return an
// https gravatar page.
if (is_https()) {
return new moodle_url("https://secure.gravatar.com/avatar/{$md5}", array('s' => $size, 'd' => $gravatardefault));
} else {
return new moodle_url("http://www.gravatar.com/avatar/{$md5}", array('s' => $size, 'd' => $gravatardefault));
}
}
return $defaulturl;
}
}
/**
* Data structure representing a help icon.
*
* @copyright 2010 Petr Skoda (info@skodak.org)
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @since Moodle 2.0
* @package core
* @category output
*/
class help_icon implements renderable, templatable {
/**
* @var string lang pack identifier (without the "_help" suffix),
* both get_string($identifier, $component) and get_string($identifier.'_help', $component)
* must exist.
*/
public $identifier;
/**
* @var string Component name, the same as in get_string()
*/
public $component;
/**
* @var string Extra descriptive text next to the icon
*/
public $linktext = null;
/**
* Constructor
*
* @param string $identifier string for help page title,
* string with _help suffix is used for the actual help text.
* string with _link suffix is used to create a link to further info (if it exists)
* @param string $component
*/
public function __construct($identifier, $component) {
$this->identifier = $identifier;
$this->component = $component;
}
/**
* Verifies that both help strings exists, shows debug warnings if not
*/
public function diag_strings() {
$sm = get_string_manager();
if (!$sm->string_exists($this->identifier, $this->component)) {
debugging("Help title string does not exist: [$this->identifier, $this->component]");
}
if (!$sm->string_exists($this->identifier.'_help', $this->component)) {
debugging("Help contents string does not exist: [{$this->identifier}_help, $this->component]");
}
}
/**
* Export this data so it can be used as the context for a mustache template.
*
* @param renderer_base $output Used to do a final render of any components that need to be rendered for export.
* @return array
*/
public function export_for_template(renderer_base $output) {
global $CFG;
$title = get_string($this->identifier, $this->component);
if (empty($this->linktext)) {
$alt = get_string('helpprefix2', '', trim($title, ". \t"));
} else {
$alt = get_string('helpwiththis');
}
$data = get_formatted_help_string($this->identifier, $this->component, false);
$data->alt = $alt;
$data->icon = (new pix_icon('help', $alt, 'core', ['class' => 'iconhelp']))->export_for_template($output);
$data->linktext = $this->linktext;
$data->title = get_string('helpprefix2', '', trim($title, ". \t"));
$options = [
'component' => $this->component,
'identifier' => $this->identifier,
'lang' => current_language()
];
// Debugging feature lets you display string identifier and component.
if (isset($CFG->debugstringids) && $CFG->debugstringids && optional_param('strings', 0, PARAM_INT)) {
$options['strings'] = 1;
}
$data->url = (new moodle_url('/help.php', $options))->out(false);
$data->ltr = !right_to_left();
return $data;
}
}
/**
* Data structure representing an icon font.
*
* @copyright 2016 Damyon Wiese
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @package core
* @category output
*/
class pix_icon_font implements templatable {
/**
* @var pix_icon $pixicon The original icon.
*/
private $pixicon = null;
/**
* @var string $key The mapped key.
*/
private $key;
/**
* @var bool $mapped The icon could not be mapped.
*/
private $mapped;
/**
* Constructor
*
* @param pix_icon $pixicon The original icon
*/
public function __construct(pix_icon $pixicon) {
global $PAGE;
$this->pixicon = $pixicon;
$this->mapped = false;
$iconsystem = \core\output\icon_system::instance();
$this->key = $iconsystem->remap_icon_name($pixicon->pix, $pixicon->component);
if (!empty($this->key)) {
$this->mapped = true;
}
}
/**
* Return true if this pix_icon was successfully mapped to an icon font.
*
* @return bool
*/
public function is_mapped() {
return $this->mapped;
}
/**
* Export this data so it can be used as the context for a mustache template.
*
* @param renderer_base $output Used to do a final render of any components that need to be rendered for export.
* @return array
*/
public function export_for_template(renderer_base $output) {
$pixdata = $this->pixicon->export_for_template($output);
$title = isset($this->pixicon->attributes['title']) ? $this->pixicon->attributes['title'] : '';
$alt = isset($this->pixicon->attributes['alt']) ? $this->pixicon->attributes['alt'] : '';
if (empty($title)) {
$title = $alt;
}
$data = array(
'extraclasses' => $pixdata['extraclasses'],
'title' => $title,
'alt' => $alt,
'key' => $this->key
);
return $data;
}
}
/**
* Data structure representing an icon subtype.
*
* @copyright 2016 Damyon Wiese
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @package core
* @category output
*/
class pix_icon_fontawesome extends pix_icon_font {
}
/**
* Data structure representing an icon.
*
* @copyright 2010 Petr Skoda
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @since Moodle 2.0
* @package core
* @category output
*/
class pix_icon implements renderable, templatable {
/**
* @var string The icon name
*/
var $pix;
/**
* @var string The component the icon belongs to.
*/
var $component;
/**
* @var array An array of attributes to use on the icon
*/
var $attributes = array();
/**
* Constructor
*
* @param string $pix short icon name
* @param string $alt The alt text to use for the icon
* @param string $component component name
* @param array $attributes html attributes
*/
public function __construct($pix, $alt, $component='moodle', array $attributes = null) {
global $PAGE;
$this->pix = $pix;
$this->component = $component;
$this->attributes = (array)$attributes;
if (empty($this->attributes['class'])) {
$this->attributes['class'] = '';
}
// Set an additional class for big icons so that they can be styled properly.
if (substr($pix, 0, 2) === 'b/') {
$this->attributes['class'] .= ' iconsize-big';
}
// If the alt is empty, don't place it in the attributes, otherwise it will override parent alt text.
if (!is_null($alt)) {
$this->attributes['alt'] = $alt;
// If there is no title, set it to the attribute.
if (!isset($this->attributes['title'])) {
$this->attributes['title'] = $this->attributes['alt'];
}
} else {
unset($this->attributes['alt']);
}
if (empty($this->attributes['title'])) {
// Remove the title attribute if empty, we probably want to use the parent node's title
// and some browsers might overwrite it with an empty title.
unset($this->attributes['title']);
}
// Hide icons from screen readers that have no alt.
if (empty($this->attributes['alt'])) {
$this->attributes['aria-hidden'] = 'true';
}
}
/**
* Export this data so it can be used as the context for a mustache template.
*
* @param renderer_base $output Used to do a final render of any components that need to be rendered for export.
* @return array
*/
public function export_for_template(renderer_base $output) {
$attributes = $this->attributes;
$extraclasses = '';
foreach ($attributes as $key => $item) {
if ($key == 'class') {
$extraclasses = $item;
unset($attributes[$key]);
break;
}
}
$attributes['src'] = $output->image_url($this->pix, $this->component)->out(false);
$templatecontext = array();
foreach ($attributes as $name => $value) {
$templatecontext[] = array('name' => $name, 'value' => $value);
}
$title = isset($attributes['title']) ? $attributes['title'] : '';
if (empty($title)) {
$title = isset($attributes['alt']) ? $attributes['alt'] : '';
}
$data = array(
'attributes' => $templatecontext,
'extraclasses' => $extraclasses
);
return $data;
}
/**
* Much simpler version of export that will produce the data required to render this pix with the
* pix helper in a mustache tag.
*
* @return array
*/
public function export_for_pix() {
$title = isset($this->attributes['title']) ? $this->attributes['title'] : '';
if (empty($title)) {
$title = isset($this->attributes['alt']) ? $this->attributes['alt'] : '';
}
return [
'key' => $this->pix,
'component' => $this->component,
'title' => (string) $title,
];
}
}
/**
* Data structure representing an activity icon.
*
* The difference is that activity icons will always render with the standard icon system (no font icons).
*
* @copyright 2017 Damyon Wiese
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @package core
*/
class image_icon extends pix_icon {
}
/**
* Data structure representing an emoticon image
*
* @copyright 2010 David Mudrak
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @since Moodle 2.0
* @package core
* @category output
*/
class pix_emoticon extends pix_icon implements renderable {
/**
* Constructor
* @param string $pix short icon name
* @param string $alt alternative text
* @param string $component emoticon image provider
* @param array $attributes explicit HTML attributes
*/
public function __construct($pix, $alt, $component = 'moodle', array $attributes = array()) {
if (empty($attributes['class'])) {
$attributes['class'] = 'emoticon';
}
parent::__construct($pix, $alt, $component, $attributes);
}
}
/**
* Data structure representing a simple form with only one button.
*
* @copyright 2009 Petr Skoda
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @since Moodle 2.0
* @package core
* @category output
*/
class single_button implements renderable {
/**
* @var moodle_url Target url
*/
public $url;
/**
* @var string Button label
*/
public $label;
/**
* @var string Form submit method post or get
*/
public $method = 'post';
/**
* @var string Wrapping div class
*/
public $class = 'singlebutton';
/**
* @var bool True if button is primary button. Used for styling.
*/
public $primary = false;
/**
* @var bool True if button disabled, false if normal
*/
public $disabled = false;
/**
* @var string Button tooltip
*/
public $tooltip = null;
/**
* @var string Form id
*/
public $formid;
/**
* @var array List of attached actions
*/
public $actions = array();
/**
* @var array $params URL Params
*/
public $params;
/**
* @var string Action id
*/
public $actionid;
/**
* @var array
*/
protected $attributes = [];
/**
* Constructor
* @param moodle_url $url
* @param string $label button text
* @param string $method get or post submit method
* @param bool $primary whether this is a primary button, used for styling
* @param array $attributes Attributes for the HTML button tag
*/
public function __construct(moodle_url $url, $label, $method='post', $primary=false, $attributes = []) {
$this->url = clone($url);
$this->label = $label;
$this->method = $method;
$this->primary = $primary;
$this->attributes = $attributes;
}
/**
* Shortcut for adding a JS confirm dialog when the button is clicked.
* The message must be a yes/no question.
*
* @param string $confirmmessage The yes/no confirmation question. If "Yes" is clicked, the original action will occur.
*/
public function add_confirm_action($confirmmessage) {
$this->add_action(new confirm_action($confirmmessage));
}
/**
* Add action to the button.
* @param component_action $action
*/
public function add_action(component_action $action) {
$this->actions[] = $action;
}
/**
* Sets an attribute for the HTML button tag.
*
* @param string $name The attribute name
* @param mixed $value The value
* @return null
*/
public function set_attribute($name, $value) {
$this->attributes[$name] = $value;
}
/**
* Export data.
*
* @param renderer_base $output Renderer.
* @return stdClass
*/
public function export_for_template(renderer_base $output) {
$url = $this->method === 'get' ? $this->url->out_omit_querystring(true) : $this->url->out_omit_querystring();
$data = new stdClass();
$data->id = html_writer::random_id('single_button');
$data->formid = $this->formid;
$data->method = $this->method;
$data->url = $url === '' ? '#' : $url;
$data->label = $this->label;
$data->classes = $this->class;
$data->disabled = $this->disabled;
$data->tooltip = $this->tooltip;
$data->primary = $this->primary;
$data->attributes = [];
foreach ($this->attributes as $key => $value) {
$data->attributes[] = ['name' => $key, 'value' => $value];
}
// Form parameters.
$params = $this->url->params();
if ($this->method === 'post') {
$params['sesskey'] = sesskey();
}
$data->params = array_map(function($key) use ($params) {
return ['name' => $key, 'value' => $params[$key]];
}, array_keys($params));
// Button actions.
$actions = $this->actions;
$data->actions = array_map(function($action) use ($output) {
return $action->export_for_template($output);
}, $actions);
$data->hasactions = !empty($data->actions);
return $data;
}
}
/**
* Simple form with just one select field that gets submitted automatically.
*
* If JS not enabled small go button is printed too.
*
* @copyright 2009 Petr Skoda
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @since Moodle 2.0
* @package core
* @category output
*/
class single_select implements renderable, templatable {
/**
* @var moodle_url Target url - includes hidden fields
*/
var $url;
/**
* @var string Name of the select element.
*/
var $name;
/**
* @var array $options associative array value=>label ex.: array(1=>'One, 2=>Two)
* it is also possible to specify optgroup as complex label array ex.:
* array(array('Odd'=>array(1=>'One', 3=>'Three)), array('Even'=>array(2=>'Two')))
* array(1=>'One', '--1uniquekey'=>array('More'=>array(2=>'Two', 3=>'Three')))
*/
var $options;
/**
* @var string Selected option
*/
var $selected;
/**
* @var array Nothing selected
*/
var $nothing;
/**
* @var array Extra select field attributes
*/
var $attributes = array();
/**
* @var string Button label
*/
var $label = '';
/**
* @var array Button label's attributes
*/
var $labelattributes = array();
/**
* @var string Form submit method post or get
*/
var $method = 'get';
/**
* @var string Wrapping div class
*/
var $class = 'singleselect';
/**
* @var bool True if button disabled, false if normal
*/
var $disabled = false;
/**
* @var string Button tooltip
*/
var $tooltip = null;
/**
* @var string Form id
*/
var $formid = null;
/**
* @var help_icon The help icon for this element.
*/
var $helpicon = null;
/**
* Constructor
* @param moodle_url $url form action target, includes hidden fields
* @param string $name name of selection field - the changing parameter in url
* @param array $options list of options
* @param string $selected selected element
* @param array $nothing
* @param string $formid
*/
public function __construct(moodle_url $url, $name, array $options, $selected = '', $nothing = array('' => 'choosedots'), $formid = null) {
$this->url = $url;
$this->name = $name;
$this->options = $options;
$this->selected = $selected;
$this->nothing = $nothing;
$this->formid = $formid;
}
/**
* Shortcut for adding a JS confirm dialog when the button is clicked.
* The message must be a yes/no question.
*
* @param string $confirmmessage The yes/no confirmation question. If "Yes" is clicked, the original action will occur.
*/
public function add_confirm_action($confirmmessage) {
$this->add_action(new component_action('submit', 'M.util.show_confirm_dialog', array('message' => $confirmmessage)));
}
/**
* Add action to the button.
*
* @param component_action $action
*/
public function add_action(component_action $action) {
$this->actions[] = $action;
}
/**
* Adds help icon.
*
* @deprecated since Moodle 2.0
*/
public function set_old_help_icon($helppage, $title, $component = 'moodle') {
throw new coding_exception('set_old_help_icon() can not be used any more, please see set_help_icon().');
}
/**
* Adds help icon.
*
* @param string $identifier The keyword that defines a help page
* @param string $component
*/
public function set_help_icon($identifier, $component = 'moodle') {
$this->helpicon = new help_icon($identifier, $component);
}
/**
* Sets select's label
*
* @param string $label
* @param array $attributes (optional)
*/
public function set_label($label, $attributes = array()) {
$this->label = $label;
$this->labelattributes = $attributes;
}
/**
* Export data.
*
* @param renderer_base $output Renderer.
* @return stdClass
*/
public function export_for_template(renderer_base $output) {
$attributes = $this->attributes;
$data = new stdClass();
$data->name = $this->name;
$data->method = $this->method;
$data->action = $this->method === 'get' ? $this->url->out_omit_querystring(true) : $this->url->out_omit_querystring();
$data->classes = $this->class;
$data->label = $this->label;
$data->disabled = $this->disabled;
$data->title = $this->tooltip;
$data->formid = !empty($this->formid) ? $this->formid : html_writer::random_id('single_select_f');
$data->id = !empty($attributes['id']) ? $attributes['id'] : html_writer::random_id('single_select');
// Select element attributes.
// Unset attributes that are already predefined in the template.
unset($attributes['id']);
unset($attributes['class']);
unset($attributes['name']);
unset($attributes['title']);
unset($attributes['disabled']);
// Map the attributes.
$data->attributes = array_map(function($key) use ($attributes) {
return ['name' => $key, 'value' => $attributes[$key]];
}, array_keys($attributes));
// Form parameters.
$params = $this->url->params();
if ($this->method === 'post') {
$params['sesskey'] = sesskey();
}
$data->params = array_map(function($key) use ($params) {
return ['name' => $key, 'value' => $params[$key]];
}, array_keys($params));
// Select options.
$hasnothing = false;
if (is_string($this->nothing) && $this->nothing !== '') {
$nothing = ['' => $this->nothing];
$hasnothing = true;
$nothingkey = '';
} else if (is_array($this->nothing)) {
$nothingvalue = reset($this->nothing);
if ($nothingvalue === 'choose' || $nothingvalue === 'choosedots') {
$nothing = [key($this->nothing) => get_string('choosedots')];
} else {
$nothing = $this->nothing;
}
$hasnothing = true;
$nothingkey = key($this->nothing);
}
if ($hasnothing) {
$options = $nothing + $this->options;
} else {
$options = $this->options;
}
foreach ($options as $value => $name) {
if (is_array($options[$value])) {
foreach ($options[$value] as $optgroupname => $optgroupvalues) {
$sublist = [];
foreach ($optgroupvalues as $optvalue => $optname) {
$option = [
'value' => $optvalue,
'name' => $optname,
'selected' => strval($this->selected) === strval($optvalue),
];
if ($hasnothing && $nothingkey === $optvalue) {
$option['ignore'] = 'data-ignore';
}
$sublist[] = $option;
}
$data->options[] = [
'name' => $optgroupname,
'optgroup' => true,
'options' => $sublist
];
}
} else {
$option = [
'value' => $value,
'name' => $options[$value],
'selected' => strval($this->selected) === strval($value),
'optgroup' => false
];
if ($hasnothing && $nothingkey === $value) {
$option['ignore'] = 'data-ignore';
}
$data->options[] = $option;
}
}
// Label attributes.
$data->labelattributes = [];
// Unset label attributes that are already in the template.
unset($this->labelattributes['for']);
// Map the label attributes.
foreach ($this->labelattributes as $key => $value) {
$data->labelattributes[] = ['name' => $key, 'value' => $value];
}
// Help icon.
$data->helpicon = !empty($this->helpicon) ? $this->helpicon->export_for_template($output) : false;
return $data;
}
}
/**
* Simple URL selection widget description.
*
* @copyright 2009 Petr Skoda
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @since Moodle 2.0
* @package core
* @category output
*/
class url_select implements renderable, templatable {
/**
* @var array $urls associative array value=>label ex.: array(1=>'One, 2=>Two)
* it is also possible to specify optgroup as complex label array ex.:
* array(array('Odd'=>array(1=>'One', 3=>'Three)), array('Even'=>array(2=>'Two')))
* array(1=>'One', '--1uniquekey'=>array('More'=>array(2=>'Two', 3=>'Three')))
*/
var $urls;
/**
* @var string Selected option
*/
var $selected;
/**
* @var array Nothing selected
*/
var $nothing;
/**
* @var array Extra select field attributes
*/
var $attributes = array();
/**
* @var string Button label
*/
var $label = '';
/**
* @var array Button label's attributes
*/
var $labelattributes = array();
/**
* @var string Wrapping div class
*/
var $class = 'urlselect';
/**
* @var bool True if button disabled, false if normal
*/
var $disabled = false;
/**
* @var string Button tooltip
*/
var $tooltip = null;
/**
* @var string Form id
*/
var $formid = null;
/**
* @var help_icon The help icon for this element.
*/
var $helpicon = null;
/**
* @var string If set, makes button visible with given name for button
*/
var $showbutton = null;
/**
* Constructor
* @param array $urls list of options
* @param string $selected selected element
* @param array $nothing
* @param string $formid
* @param string $showbutton Set to text of button if it should be visible
* or null if it should be hidden (hidden version always has text 'go')
*/
public function __construct(array $urls, $selected = '', $nothing = array('' => 'choosedots'), $formid = null, $showbutton = null) {
$this->urls = $urls;
$this->selected = $selected;
$this->nothing = $nothing;
$this->formid = $formid;
$this->showbutton = $showbutton;
}
/**
* Adds help icon.
*
* @deprecated since Moodle 2.0
*/
public function set_old_help_icon($helppage, $title, $component = 'moodle') {
throw new coding_exception('set_old_help_icon() can not be used any more, please see set_help_icon().');
}
/**
* Adds help icon.
*
* @param string $identifier The keyword that defines a help page
* @param string $component
*/
public function set_help_icon($identifier, $component = 'moodle') {
$this->helpicon = new help_icon($identifier, $component);
}
/**
* Sets select's label
*
* @param string $label
* @param array $attributes (optional)
*/
public function set_label($label, $attributes = array()) {
$this->label = $label;
$this->labelattributes = $attributes;
}
/**
* Clean a URL.
*
* @param string $value The URL.
* @return The cleaned URL.
*/
protected function clean_url($value) {
global $CFG;
if (empty($value)) {
// Nothing.
} else if (strpos($value, $CFG->wwwroot . '/') === 0) {
$value = str_replace($CFG->wwwroot, '', $value);
} else if (strpos($value, '/') !== 0) {
debugging("Invalid url_select urls parameter: url '$value' is not local relative url!", DEBUG_DEVELOPER);
}
return $value;
}
/**
* Flatten the options for Mustache.
*
* This also cleans the URLs.
*
* @param array $options The options.
* @param array $nothing The nothing option.
* @return array
*/
protected function flatten_options($options, $nothing) {
$flattened = [];
foreach ($options as $value => $option) {
if (is_array($option)) {
foreach ($option as $groupname => $optoptions) {
if (!isset($flattened[$groupname])) {
$flattened[$groupname] = [
'name' => $groupname,
'isgroup' => true,
'options' => []
];
}
foreach ($optoptions as $optvalue => $optoption) {
$cleanedvalue = $this->clean_url($optvalue);
$flattened[$groupname]['options'][$cleanedvalue] = [
'name' => $optoption,
'value' => $cleanedvalue,
'selected' => $this->selected == $optvalue,
];
}
}
} else {
$cleanedvalue = $this->clean_url($value);
$flattened[$cleanedvalue] = [
'name' => $option,
'value' => $cleanedvalue,
'selected' => $this->selected == $value,
];
}
}
if (!empty($nothing)) {
$value = key($nothing);
$name = reset($nothing);
$flattened = [
$value => ['name' => $name, 'value' => $value, 'selected' => $this->selected == $value]
] + $flattened;
}
// Make non-associative array.
foreach ($flattened as $key => $value) {
if (!empty($value['options'])) {
$flattened[$key]['options'] = array_values($value['options']);
}
}
$flattened = array_values($flattened);
return $flattened;
}
/**
* Export for template.
*
* @param renderer_base $output Renderer.
* @return stdClass
*/
public function export_for_template(renderer_base $output) {
$attributes = $this->attributes;
$data = new stdClass();
$data->formid = !empty($this->formid) ? $this->formid : html_writer::random_id('url_select_f');
$data->classes = $this->class;
$data->label = $this->label;
$data->disabled = $this->disabled;
$data->title = $this->tooltip;
$data->id = !empty($attributes['id']) ? $attributes['id'] : html_writer::random_id('url_select');
$data->sesskey = sesskey();
$data->action = (new moodle_url('/course/jumpto.php'))->out(false);
// Remove attributes passed as property directly.
unset($attributes['class']);
unset($attributes['id']);
unset($attributes['name']);
unset($attributes['title']);
unset($attributes['disabled']);
$data->showbutton = $this->showbutton;
// Select options.
$nothing = false;
if (is_string($this->nothing) && $this->nothing !== '') {
$nothing = ['' => $this->nothing];
} else if (is_array($this->nothing)) {
$nothingvalue = reset($this->nothing);
if ($nothingvalue === 'choose' || $nothingvalue === 'choosedots') {
$nothing = [key($this->nothing) => get_string('choosedots')];
} else {
$nothing = $this->nothing;
}
}
$data->options = $this->flatten_options($this->urls, $nothing);
// Label attributes.
$data->labelattributes = [];
// Unset label attributes that are already in the template.
unset($this->labelattributes['for']);
// Map the label attributes.
foreach ($this->labelattributes as $key => $value) {
$data->labelattributes[] = ['name' => $key, 'value' => $value];
}
// Help icon.
$data->helpicon = !empty($this->helpicon) ? $this->helpicon->export_for_template($output) : false;
// Finally all the remaining attributes.
$data->attributes = [];
foreach ($attributes as $key => $value) {
$data->attributes[] = ['name' => $key, 'value' => $value];
}
return $data;
}
}
/**
* Data structure describing html link with special action attached.
*
* @copyright 2010 Petr Skoda
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @since Moodle 2.0
* @package core
* @category output
*/
class action_link implements renderable {
/**
* @var moodle_url Href url
*/
public $url;
/**
* @var string Link text HTML fragment
*/
public $text;
/**
* @var array HTML attributes
*/
public $attributes;
/**
* @var array List of actions attached to link
*/
public $actions;
/**
* @var pix_icon Optional pix icon to render with the link
*/
public $icon;
/**
* Constructor
* @param moodle_url $url
* @param string $text HTML fragment
* @param component_action $action
* @param array $attributes associative array of html link attributes + disabled
* @param pix_icon $icon optional pix_icon to render with the link text
*/
public function __construct(moodle_url $url,
$text,
component_action $action=null,
array $attributes=null,
pix_icon $icon=null) {
$this->url = clone($url);
$this->text = $text;
if (empty($attributes['id'])) {
$attributes['id'] = html_writer::random_id('action_link');
}
$this->attributes = (array)$attributes;
if ($action) {
$this->add_action($action);
}
$this->icon = $icon;
}
/**
* Add action to the link.
*
* @param component_action $action
*/
public function add_action(component_action $action) {
$this->actions[] = $action;
}
/**
* Adds a CSS class to this action link object
* @param string $class
*/
public function add_class($class) {
if (empty($this->attributes['class'])) {
$this->attributes['class'] = $class;
} else {
$this->attributes['class'] .= ' ' . $class;
}
}
/**
* Returns true if the specified class has been added to this link.
* @param string $class
* @return bool
*/
public function has_class($class) {
return strpos(' ' . $this->attributes['class'] . ' ', ' ' . $class . ' ') !== false;
}
/**
* Return the rendered HTML for the icon. Useful for rendering action links in a template.
* @return string
*/
public function get_icon_html() {
global $OUTPUT;
if (!$this->icon) {
return '';
}
return $OUTPUT->render($this->icon);
}
/**
* Export for template.
*
* @param renderer_base $output The renderer.
* @return stdClass
*/
public function export_for_template(renderer_base $output) {
$data = new stdClass();
$attributes = $this->attributes;
$data->id = $attributes['id'];
unset($attributes['id']);
$data->disabled = !empty($attributes['disabled']);
unset($attributes['disabled']);
$data->text = $this->text instanceof renderable ? $output->render($this->text) : (string) $this->text;
$data->url = $this->url ? $this->url->out(false) : '';
$data->icon = $this->icon ? $this->icon->export_for_pix() : null;
$data->classes = isset($attributes['class']) ? $attributes['class'] : '';
unset($attributes['class']);
$data->attributes = array_map(function($key, $value) {
return [
'name' => $key,
'value' => $value
];
}, array_keys($attributes), $attributes);
$data->actions = array_map(function($action) use ($output) {
return $action->export_for_template($output);
}, !empty($this->actions) ? $this->actions : []);
$data->hasactions = !empty($this->actions);
return $data;
}
}
/**
* Simple html output class
*
* @copyright 2009 Tim Hunt, 2010 Petr Skoda
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @since Moodle 2.0
* @package core
* @category output
*/
class html_writer {
/**
* Outputs a tag with attributes and contents
*
* @param string $tagname The name of tag ('a', 'img', 'span' etc.)
* @param string $contents What goes between the opening and closing tags
* @param array $attributes The tag attributes (array('src' => $url, 'class' => 'class1') etc.)
* @return string HTML fragment
*/
public static function tag($tagname, $contents, array $attributes = null) {
return self::start_tag($tagname, $attributes) . $contents . self::end_tag($tagname);
}
/**
* Outputs an opening tag with attributes
*
* @param string $tagname The name of tag ('a', 'img', 'span' etc.)
* @param array $attributes The tag attributes (array('src' => $url, 'class' => 'class1') etc.)
* @return string HTML fragment
*/
public static function start_tag($tagname, array $attributes = null) {
return '<' . $tagname . self::attributes($attributes) . '>';
}
/**
* Outputs a closing tag
*
* @param string $tagname The name of tag ('a', 'img', 'span' etc.)
* @return string HTML fragment
*/
public static function end_tag($tagname) {
return '';
}
/**
* Outputs an empty tag with attributes
*
* @param string $tagname The name of tag ('input', 'img', 'br' etc.)
* @param array $attributes The tag attributes (array('src' => $url, 'class' => 'class1') etc.)
* @return string HTML fragment
*/
public static function empty_tag($tagname, array $attributes = null) {
return '<' . $tagname . self::attributes($attributes) . ' />';
}
/**
* Outputs a tag, but only if the contents are not empty
*
* @param string $tagname The name of tag ('a', 'img', 'span' etc.)
* @param string $contents What goes between the opening and closing tags
* @param array $attributes The tag attributes (array('src' => $url, 'class' => 'class1') etc.)
* @return string HTML fragment
*/
public static function nonempty_tag($tagname, $contents, array $attributes = null) {
if ($contents === '' || is_null($contents)) {
return '';
}
return self::tag($tagname, $contents, $attributes);
}
/**
* Outputs a HTML attribute and value
*
* @param string $name The name of the attribute ('src', 'href', 'class' etc.)
* @param string $value The value of the attribute. The value will be escaped with {@link s()}
* @return string HTML fragment
*/
public static function attribute($name, $value) {
if ($value instanceof moodle_url) {
return ' ' . $name . '="' . $value->out() . '"';
}
// special case, we do not want these in output
if ($value === null) {
return '';
}
// no sloppy trimming here!
return ' ' . $name . '="' . s($value) . '"';
}
/**
* Outputs a list of HTML attributes and values
*
* @param array $attributes The tag attributes (array('src' => $url, 'class' => 'class1') etc.)
* The values will be escaped with {@link s()}
* @return string HTML fragment
*/
public static function attributes(array $attributes = null) {
$attributes = (array)$attributes;
$output = '';
foreach ($attributes as $name => $value) {
$output .= self::attribute($name, $value);
}
return $output;
}
/**
* Generates a simple image tag with attributes.
*
* @param string $src The source of image
* @param string $alt The alternate text for image
* @param array $attributes The tag attributes (array('height' => $max_height, 'class' => 'class1') etc.)
* @return string HTML fragment
*/
public static function img($src, $alt, array $attributes = null) {
$attributes = (array)$attributes;
$attributes['src'] = $src;
$attributes['alt'] = $alt;
return self::empty_tag('img', $attributes);
}
/**
* Generates random html element id.
*
* @staticvar int $counter
* @staticvar type $uniq
* @param string $base A string fragment that will be included in the random ID.
* @return string A unique ID
*/
public static function random_id($base='random') {
static $counter = 0;
static $uniq;
if (!isset($uniq)) {
$uniq = uniqid();
}
$counter++;
return $base.$uniq.$counter;
}
/**
* Generates a simple html link
*
* @param string|moodle_url $url The URL
* @param string $text The text
* @param array $attributes HTML attributes
* @return string HTML fragment
*/
public static function link($url, $text, array $attributes = null) {
$attributes = (array)$attributes;
$attributes['href'] = $url;
return self::tag('a', $text, $attributes);
}
/**
* Generates a simple checkbox with optional label
*
* @param string $name The name of the checkbox
* @param string $value The value of the checkbox
* @param bool $checked Whether the checkbox is checked
* @param string $label The label for the checkbox
* @param array $attributes Any attributes to apply to the checkbox
* @param array $labelattributes Any attributes to apply to the label, if present
* @return string html fragment
*/
public static function checkbox($name, $value, $checked = true, $label = '',
array $attributes = null, array $labelattributes = null) {
$attributes = (array) $attributes;
$output = '';
if ($label !== '' and !is_null($label)) {
if (empty($attributes['id'])) {
$attributes['id'] = self::random_id('checkbox_');
}
}
$attributes['type'] = 'checkbox';
$attributes['value'] = $value;
$attributes['name'] = $name;
$attributes['checked'] = $checked ? 'checked' : null;
$output .= self::empty_tag('input', $attributes);
if ($label !== '' and !is_null($label)) {
$labelattributes = (array) $labelattributes;
$labelattributes['for'] = $attributes['id'];
$output .= self::tag('label', $label, $labelattributes);
}
return $output;
}
/**
* Generates a simple select yes/no form field
*
* @param string $name name of select element
* @param bool $selected
* @param array $attributes - html select element attributes
* @return string HTML fragment
*/
public static function select_yes_no($name, $selected=true, array $attributes = null) {
$options = array('1'=>get_string('yes'), '0'=>get_string('no'));
return self::select($options, $name, $selected, null, $attributes);
}
/**
* Generates a simple select form field
*
* Note this function does HTML escaping on the optgroup labels, but not on the choice labels.
*
* @param array $options associative array value=>label ex.:
* array(1=>'One, 2=>Two)
* it is also possible to specify optgroup as complex label array ex.:
* array(array('Odd'=>array(1=>'One', 3=>'Three)), array('Even'=>array(2=>'Two')))
* array(1=>'One', '--1uniquekey'=>array('More'=>array(2=>'Two', 3=>'Three')))
* @param string $name name of select element
* @param string|array $selected value or array of values depending on multiple attribute
* @param array|bool $nothing add nothing selected option, or false of not added
* @param array $attributes html select element attributes
* @return string HTML fragment
*/
public static function select(array $options, $name, $selected = '', $nothing = array('' => 'choosedots'), array $attributes = null) {
$attributes = (array)$attributes;
if (is_array($nothing)) {
foreach ($nothing as $k=>$v) {
if ($v === 'choose' or $v === 'choosedots') {
$nothing[$k] = get_string('choosedots');
}
}
$options = $nothing + $options; // keep keys, do not override
} else if (is_string($nothing) and $nothing !== '') {
// BC
$options = array(''=>$nothing) + $options;
}
// we may accept more values if multiple attribute specified
$selected = (array)$selected;
foreach ($selected as $k=>$v) {
$selected[$k] = (string)$v;
}
if (!isset($attributes['id'])) {
$id = 'menu'.$name;
// name may contaion [], which would make an invalid id. e.g. numeric question type editing form, assignment quickgrading
$id = str_replace('[', '', $id);
$id = str_replace(']', '', $id);
$attributes['id'] = $id;
}
if (!isset($attributes['class'])) {
$class = 'menu'.$name;
// name may contaion [], which would make an invalid class. e.g. numeric question type editing form, assignment quickgrading
$class = str_replace('[', '', $class);
$class = str_replace(']', '', $class);
$attributes['class'] = $class;
}
$attributes['class'] = 'select custom-select ' . $attributes['class']; // Add 'select' selector always.
$attributes['name'] = $name;
if (!empty($attributes['disabled'])) {
$attributes['disabled'] = 'disabled';
} else {
unset($attributes['disabled']);
}
$output = '';
foreach ($options as $value=>$label) {
if (is_array($label)) {
// ignore key, it just has to be unique
$output .= self::select_optgroup(key($label), current($label), $selected);
} else {
$output .= self::select_option($label, $value, $selected);
}
}
return self::tag('select', $output, $attributes);
}
/**
* Returns HTML to display a select box option.
*
* @param string $label The label to display as the option.
* @param string|int $value The value the option represents
* @param array $selected An array of selected options
* @return string HTML fragment
*/
private static function select_option($label, $value, array $selected) {
$attributes = array();
$value = (string)$value;
if (in_array($value, $selected, true)) {
$attributes['selected'] = 'selected';
}
$attributes['value'] = $value;
return self::tag('option', $label, $attributes);
}
/**
* Returns HTML to display a select box option group.
*
* @param string $groupname The label to use for the group
* @param array $options The options in the group
* @param array $selected An array of selected values.
* @return string HTML fragment.
*/
private static function select_optgroup($groupname, $options, array $selected) {
if (empty($options)) {
return '';
}
$attributes = array('label'=>$groupname);
$output = '';
foreach ($options as $value=>$label) {
$output .= self::select_option($label, $value, $selected);
}
return self::tag('optgroup', $output, $attributes);
}
/**
* This is a shortcut for making an hour selector menu.
*
* @param string $type The type of selector (years, months, days, hours, minutes)
* @param string $name fieldname
* @param int $currenttime A default timestamp in GMT
* @param int $step minute spacing
* @param array $attributes - html select element attributes
* @return HTML fragment
*/
public static function select_time($type, $name, $currenttime = 0, $step = 5, array $attributes = null) {
global $OUTPUT;
if (!$currenttime) {
$currenttime = time();
}
$calendartype = \core_calendar\type_factory::get_calendar_instance();
$currentdate = $calendartype->timestamp_to_date_array($currenttime);
$userdatetype = $type;
$timeunits = array();
switch ($type) {
case 'years':
$timeunits = $calendartype->get_years();
$userdatetype = 'year';
break;
case 'months':
$timeunits = $calendartype->get_months();
$userdatetype = 'month';
$currentdate['month'] = (int)$currentdate['mon'];
break;
case 'days':
$timeunits = $calendartype->get_days();
$userdatetype = 'mday';
break;
case 'hours':
for ($i=0; $i<=23; $i++) {
$timeunits[$i] = sprintf("%02d",$i);
}
break;
case 'minutes':
if ($step != 1) {
$currentdate['minutes'] = ceil($currentdate['minutes']/$step)*$step;
}
for ($i=0; $i<=59; $i+=$step) {
$timeunits[$i] = sprintf("%02d",$i);
}
break;
default:
throw new coding_exception("Time type $type is not supported by html_writer::select_time().");
}
$attributes = (array) $attributes;
$data = (object) [
'name' => $name,
'id' => !empty($attributes['id']) ? $attributes['id'] : self::random_id('ts_'),
'label' => get_string(substr($type, 0, -1), 'form'),
'options' => array_map(function($value) use ($timeunits, $currentdate, $userdatetype) {
return [
'name' => $timeunits[$value],
'value' => $value,
'selected' => $currentdate[$userdatetype] == $value
];
}, array_keys($timeunits)),
];
unset($attributes['id']);
unset($attributes['name']);
$data->attributes = array_map(function($name) use ($attributes) {
return [
'name' => $name,
'value' => $attributes[$name]
];
}, array_keys($attributes));
return $OUTPUT->render_from_template('core/select_time', $data);
}
/**
* Shortcut for quick making of lists
*
* Note: 'list' is a reserved keyword ;-)
*
* @param array $items
* @param array $attributes
* @param string $tag ul or ol
* @return string
*/
public static function alist(array $items, array $attributes = null, $tag = 'ul') {
$output = html_writer::start_tag($tag, $attributes)."\n";
foreach ($items as $item) {
$output .= html_writer::tag('li', $item)."\n";
}
$output .= html_writer::end_tag($tag);
return $output;
}
/**
* Returns hidden input fields created from url parameters.
*
* @param moodle_url $url
* @param array $exclude list of excluded parameters
* @return string HTML fragment
*/
public static function input_hidden_params(moodle_url $url, array $exclude = null) {
$exclude = (array)$exclude;
$params = $url->params();
foreach ($exclude as $key) {
unset($params[$key]);
}
$output = '';
foreach ($params as $key => $value) {
$attributes = array('type'=>'hidden', 'name'=>$key, 'value'=>$value);
$output .= self::empty_tag('input', $attributes)."\n";
}
return $output;
}
/**
* Generate a script tag containing the the specified code.
*
* @param string $jscode the JavaScript code
* @param moodle_url|string $url optional url of the external script, $code ignored if specified
* @return string HTML, the code wrapped in