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<?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/>.
/**
* List the valid locations to search for a template with a given name.
*
* @package core
* @category output
* @copyright 2015 Damyon Wiese
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace core\output;
use coding_exception;
use moodle_exception;
use core_component;
use theme_config;
/**
* Get information about valid locations for mustache templates.
*
* @copyright 2015 Damyon Wiese
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @since 2.9
*/
class mustache_template_finder {
/**
* Helper function for getting a list of valid template directories for a specific component.
*
* @param string $component The component to search
* @param string $themename The current theme name
* @return string[] List of valid directories for templates for this compoonent. Directories are not checked for existence.
*/
public static function get_template_directories_for_component($component, $themename = '') {
global $CFG, $PAGE;
// Default the param.
if ($themename == '') {
$themename = $PAGE->theme->name;
}
// Clean params for safety.
$component = clean_param($component, PARAM_COMPONENT);
$themename = clean_param($themename, PARAM_COMPONENT);
// Validate the component.
$dirs = array();
$compdirectory = core_component::get_component_directory($component);
if (!$compdirectory) {
throw new coding_exception("Component was not valid: " . s($component));
}
// Find the parent themes.
$parents = array();
if ($themename === $PAGE->theme->name) {
$parents = $PAGE->theme->parents;
} else {
$themeconfig = theme_config::load($themename);
$parents = $themeconfig->parents;
}
// First check the theme.
$dirs[] = $CFG->dirroot . '/theme/' . $themename . '/templates/' . $component . '/';
if (isset($CFG->themedir)) {
$dirs[] = $CFG->themedir . '/' . $themename . '/templates/' . $component . '/';
}
// Now check the parent themes.
// Search each of the parent themes second.
foreach ($parents as $parent) {
$dirs[] = $CFG->dirroot . '/theme/' . $parent . '/templates/' . $component . '/';
if (isset($CFG->themedir)) {
$dirs[] = $CFG->themedir . '/' . $parent . '/templates/' . $component . '/';
}
}
$dirs[] = $compdirectory . '/templates/';
return $dirs;
}
/**
* Helper function for getting a filename for a template from the template name.
*
* @param string $name - This is the componentname/templatename combined.
* @param string $themename - This is the current theme name.
* @return string
*/
public static function get_template_filepath($name, $themename = '') {
global $CFG, $PAGE;
if (strpos($name, '/') === false) {
throw new coding_exception('Templates names must be specified as "componentname/templatename"' .
' (' . s($name) . ' requested) ');
}
list($component, $templatename) = explode('/', $name, 2);
$component = clean_param($component, PARAM_COMPONENT);
if (strpos($templatename, '/') !== false) {
throw new coding_exception('Templates cannot be placed in sub directories (' . s($name) . ' requested)');
}
$dirs = self::get_template_directories_for_component($component, $themename);
foreach ($dirs as $dir) {
$candidate = $dir . $templatename . '.mustache';
if (file_exists($candidate)) {
return $candidate;
}
}
throw new moodle_exception('filenotfound', 'error', '', null, $name);
}
}