theme/index.php

   1 <?php
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   5 // Moodle is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // Moodle is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 /**
  19  * This page prvides the Administration -> ... -> Theme selector UI.
  20  */
  21
  22 require_once(dirname(__FILE__) . '/../config.php');
  23 require_once($CFG->libdir . '/adminlib.php');
  24
  25 $choose = optional_param('choose', '', PARAM_SAFEDIR);
  26 $chooselegacy = optional_param('chooselegacy', '', PARAM_SAFEDIR);
  27 $reset  = optional_param('reset', 0, PARAM_BOOL);
  28
  29 admin_externalpage_setup('themeselector');
  30
  31 unset($SESSION->theme);
  32
  33 if ($reset and confirm_sesskey()) {
  34     theme_reset_all_caches();
  35
  36 } else if (($choose || $chooselegacy) && confirm_sesskey()) {
  37
  38     if ($choose) {
  39         $chosentheme = $choose;
  40         $heading = get_string('themesaved');
  41         $config = 'theme';
  42     } else {
  43         $chosentheme = $chooselegacy;
  44         $heading = get_string('legacythemesaved');
  45         $config = 'themelegacy';
  46     }
  47     $theme = theme_config::load($chosentheme);
  48     set_config($config, $theme->name);
  49
  50     // Create a new page for the display of the themes readme.
  51     // This ensures that the readme page is shown using the new theme.
  52     $confirmpage = new moodle_page();
  53     $confirmpage->set_context($PAGE->context);
  54     $confirmpage->set_url($PAGE->url);
  55     $confirmpage->set_pagelayout($PAGE->pagelayout);
  56     $confirmpage->set_pagetype($PAGE->pagetype);
  57     $confirmpage->set_title($PAGE->title);
  58     $confirmpage->set_heading($PAGE->heading);
  59
  60     // Get the core renderer for the new theme.
  61     $output = $confirmpage->get_renderer('core');
  62
  63     echo $output->header();
  64     echo $output->heading($heading);
  65     echo $output->box_start();
  66     echo format_text(get_string('choosereadme', 'theme_'.$CFG->theme), FORMAT_MOODLE);
  67     echo $output->box_end();
  68     echo $output->continue_button($CFG->wwwroot . '/' . $CFG->admin . '/index.php');
  69     echo $output->footer();
  70     exit;
  71 }
  72
  73 // Otherwise, show a list of themes.
  74 echo $OUTPUT->header('themeselector');
  75 echo $OUTPUT->heading(get_string('themes'));
  76
  77 echo $OUTPUT->single_button(new moodle_url('index.php', array('sesskey'=>sesskey(),'reset'=>1)), get_string('themeresetcaches', 'admin'));
  78
  79 $table = new html_table();
  80 $table->id = 'adminthemeselector';
  81 $table->head = array(get_string('theme'), get_string('info'));
  82
  83 $themes = get_plugin_list('theme');
  84
  85 foreach ($themes as $themename => $themedir) {
  86
  87     // Load the theme config.
  88     try {
  89         $theme = theme_config::load($themename);
  90     } catch (Exception $e) {
  91         // Bad theme, just skip it for now.
  92         continue;
  93     }
  94     if ($themename !== $theme->name) {
  95         //obsoleted or broken theme, just skip for now
  96         continue;
  97     }
  98     if (!$CFG->themedesignermode && $theme->hidefromselector) {
  99         // The theme doesn't want to be shown in the theme selector and as theme
 100         // designer mode is switched off we will respect that decision.
 101         continue;
 102     }
 103     $strthemename = get_string('pluginname', 'theme_'.$themename);
 104
 105     // Build the table row, and also a list of items to go in the second cell.
 106     $row = array();
 107     $infoitems = array();
 108     $rowclasses = array();
 109
 110     // Set up bools whether this theme is chosen either main or legacy
 111     $ischosentheme = ($themename == $CFG->theme);
 112     $ischosenlegacytheme = (!empty($CFG->themelegacy) && $themename == $CFG->themelegacy);
 113
 114     if ($ischosentheme) {
 115         // Is the chosen main theme
 116         $rowclasses[] = 'selectedtheme';
 117     }
 118     if ($ischosenlegacytheme) {
 119         // Is the chosen legacy theme
 120         $rowclasses[] = 'selectedlegacytheme';
 121     }
 122
 123     // link to the screenshot, now mandatory - the image path is hardcoded because we need image from other themes, not the current one
 124     $screenshotpath = new moodle_url('/theme/image.php', array('theme'=>$themename, 'image'=>'screenshot','component'=>'theme'));
 125     // Contents of the first screenshot/preview cell.
 126     $row[] = html_writer::empty_tag('img', array('src'=>$screenshotpath, 'alt'=>$strthemename));
 127
 128     // Contents of the second cell.
 129     $infocell = $OUTPUT->heading($strthemename, 3);
 130
 131     // Button to choose this as the main theme
 132     $maintheme = new single_button(new moodle_url('/theme/index.php', array('choose' => $themename, 'sesskey' => sesskey())), get_string('useformaintheme'), 'get');
 133     $maintheme->disabled = $ischosentheme;
 134     $infocell .= $OUTPUT->render($maintheme);
 135
 136     // Button to choose this as the legacy theme
 137     $legacytheme = new single_button(new moodle_url('/theme/index.php', array('chooselegacy' => $themename, 'sesskey' => sesskey())), get_string('useforlegacytheme'), 'get');
 138     $legacytheme->disabled = $ischosenlegacytheme;
 139     $infocell .= $OUTPUT->render($legacytheme);
 140
 141     $row[] = $infocell;
 142
 143     $table->data[$themename] = $row;
 144     $table->rowclasses[$themename] = join(' ', $rowclasses);
 145 }
 146
 147 echo html_writer::table($table);
 148
 149 echo $OUTPUT->footer();