skodak
123 lines
4.0 KiB
PHP
123 lines
4.0 KiB
PHP
<?php
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///////////////////////////////////////////////////////////////////////////
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// //
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// NOTICE OF COPYRIGHT //
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// //
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// Moodle - Modular Object-Oriented Dynamic Learning Environment //
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// http://moodle.com //
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// //
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// Copyright (C) 1999 onwards Martin Dougiamas http://moodle.com //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation; either version 2 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License for more details: //
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// //
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// http://www.gnu.org/copyleft/gpl.html //
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// //
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///////////////////////////////////////////////////////////////////////////
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//TODO:
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// * remove $CFG->htmleditor and $CFG->defaulthtmleditor and $USER->htmleditor
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// *
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function get_preferred_texteditor($format=null) {
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global $CFG, $USER;
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if (empty($CFG->texteditors)) {
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$CFG->texteditors = 'tinymce,textarea';
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}
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$active = explode(',', $CFG->texteditors);
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// TODO: implement user preferences for text editors
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// now find some plugin that supports format and is available
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$editor = false;
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foreach ($active as $editorname) {
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if (!$e = get_texteditor($editorname)) {
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continue;
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}
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if (!$e->supported_by_browser()) {
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// bad luck, this editor is not compatible
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continue;
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}
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if (!$supports = $e->get_supported_formats()) {
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continue;
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}
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if (is_null($format)) {
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// format does not matter
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$editor = $e;
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break;
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}
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if (in_array($format, $supports)) {
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// editor supports this format, yay!
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$editor = $e;
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break;
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}
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}
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if (!$editor) {
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$editor = get_texteditor('textarea'); // must exist and can edit anything
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}
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return $editor;
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}
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function get_texteditor($editor) {
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global $CFG;
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$libfile = "$CFG->libdir/editor/$editor/lib.php";
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if (!file_exists($libfile)) {
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return false;
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}
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require_once($libfile);
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$classname = $editor.'_texteditor';
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if (!class_exists($classname)) {
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return false;
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}
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return new $classname();
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}
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/**
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* Get the list of available editors
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*/
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function get_available_editors() {
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$editors = array();
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foreach (get_list_of_plugins('lib/editor') as $editor) {
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$editors['editor'] = get_string('modulename', 'editor_'.$editor);
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}
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return $editors;
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}
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/**
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* Base text editor class
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*/
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abstract class texteditor {
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public abstract function supported_by_browser();
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public abstract function get_supported_formats();
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public abstract function get_preferred_format();
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public abstract function supports_repositories();
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public abstract function get_editor_element_class();
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public abstract function get_legacy_textarea_class();
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public abstract function header_js();
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}
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//=== DEPRECATED =====================
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/**
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* Deprecated...
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*/
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function can_use_html_editor() {
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//TODO: eradicate completely
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return true;
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}
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