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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/>.
/**
* This page prvides the Administration -> ... -> Theme selector UI.
*/
require_once(dirname(__FILE__) . '/../config.php');
require_once($CFG->libdir . '/adminlib.php');
$choose = optional_param('choose', '', PARAM_SAFEDIR);
$reset = optional_param('reset', 0, PARAM_BOOL);
$device = optional_param('device', '', PARAM_TEXT);
admin_externalpage_setup('themeselector');
if (!empty($device)) {
// Make sure the device requested is valid
$devices = get_device_type_list();
if (!in_array($device, $devices)) {
// The provided device isn't a valid device throw an error
print_error('invaliddevicetype');
}
}
unset($SESSION->theme);
if ($reset and confirm_sesskey()) {
theme_reset_all_caches();
} else if ($choose && $device && confirm_sesskey()) {
// Load the theme to make sure it is valid.
$theme = theme_config::load($choose);
// Get the config argument for the chosen device.
$themename = get_device_cfg_var_name($device);
set_config($themename, $theme->name);
// Create a new page for the display of the themes readme.
// This ensures that the readme page is shown using the new theme.
$confirmpage = new moodle_page();
$confirmpage->set_context($PAGE->context);
$confirmpage->set_url($PAGE->url);
$confirmpage->set_pagelayout($PAGE->pagelayout);
$confirmpage->set_pagetype($PAGE->pagetype);
$confirmpage->set_title($PAGE->title);
$confirmpage->set_heading($PAGE->heading);
// Get the core renderer for the new theme.
$output = $confirmpage->get_renderer('core');
echo $output->header();
echo $output->heading(get_string('themesaved'));
echo $output->box_start();
echo format_text(get_string('choosereadme', 'theme_'.$theme->name), FORMAT_MOODLE);
echo $output->box_end();
echo $output->continue_button($CFG->wwwroot . '/theme/index.php');
echo $output->footer();
exit;
}
// Otherwise, show either a list of devices, or is enabledevicedetection set to no or a
// device is specified show a list of themes.
echo $OUTPUT->header('themeselector');
echo $OUTPUT->heading(get_string('themes'));
echo $OUTPUT->single_button(new moodle_url('index.php', array('sesskey' => sesskey(), 'reset' => 1)), get_string('themeresetcaches', 'admin'));
$table = new html_table();
$table->data = array();
if (!empty($CFG->enabledevicedetection) && empty($device)) {
// Display a list of devices that a user can select a theme for.
$strthemenotselected = get_string('themenoselected', 'admin');
$strthemeselect = get_string('themeselect', 'admin');
// Display the device selection screen
$table->id = 'admindeviceselector';
$table->head = array(get_string('devicetype', 'admin'), get_string('theme'), get_string('info'));
$devices = get_device_type_list();
foreach ($devices as $device) {
$themename = get_selected_theme_for_device_type($device);
if (!$themename && $device == 'default') {
$themename = theme_config::DEFAULT_THEME;
}
$screenshotcell = $strthemenotselected;
if ($themename) {
// Check the theme exists
$themename = clean_param($themename, PARAM_THEME);
if (empty($themename)) {
// Likely the theme has been deleted
unset_config(get_device_cfg_var_name($device));
} else {
$strthemename = get_string('pluginname', 'theme_'.$themename);
// link to the screenshot, now mandatory - the image path is hardcoded because we need image from other themes, not the current one
$screenshoturl = new moodle_url('/theme/image.php', array('theme' => $themename, 'image' => 'screenshot', 'component' => 'theme'));
// Contents of the screenshot/preview cell.
$screenshotcell = html_writer::empty_tag('img', array('src' => $screenshoturl, 'alt' => $strthemename));
}
}
$deviceurl = new moodle_url('/theme/index.php', array('device' => $device, 'sesskey' => sesskey()));
$select = new single_button($deviceurl, $strthemeselect, 'get');
$table->data[] = array(
$device,
$screenshotcell,
$OUTPUT->render($select)
);
}
} else {
// Either a device has been selected of $CFG->enabledevicedetection is off so display a list
// of themes to select.
if (empty($device)) {
// if $CFG->enabledevicedetection is off this will return 'default'
$device = get_device_type();
}
$table->id = 'adminthemeselector';
$table->head = array(get_string('theme'), get_string('info'));
$themes = get_plugin_list('theme');
foreach ($themes as $themename => $themedir) {
// Load the theme config.
try {
$theme = theme_config::load($themename);
} catch (Exception $e) {
// Bad theme, just skip it for now.
continue;
}
if ($themename !== $theme->name) {
//obsoleted or broken theme, just skip for now
continue;
}
if (empty($CFG->themedesignermode) && $theme->hidefromselector) {
// The theme doesn't want to be shown in the theme selector and as theme
// designer mode is switched off we will respect that decision.
continue;
}
$strthemename = get_string('pluginname', 'theme_'.$themename);
// Build the table row, and also a list of items to go in the second cell.
$row = array();
$infoitems = array();
$rowclasses = array();
// Set up bools whether this theme is chosen either main or legacy
$ischosentheme = ($themename == get_selected_theme_for_device_type($device));
if ($ischosentheme) {
// Is the chosen main theme
$rowclasses[] = 'selectedtheme';
}
// link to the screenshot, now mandatory - the image path is hardcoded because we need image from other themes, not the current one
$screenshotpath = new moodle_url('/theme/image.php', array('theme'=>$themename, 'image'=>'screenshot', 'component'=>'theme'));
// Contents of the first screenshot/preview cell.
$row[] = html_writer::empty_tag('img', array('src'=>$screenshotpath, 'alt'=>$strthemename));
// Contents of the second cell.
$infocell = $OUTPUT->heading($strthemename, 3);
// Button to choose this as the main theme
$maintheme = new single_button(new moodle_url('/theme/index.php', array('device' => $device, 'choose' => $themename, 'sesskey' => sesskey())), get_string('usetheme'), 'get');
$maintheme->disabled = $ischosentheme;
$infocell .= $OUTPUT->render($maintheme);
$row[] = $infocell;
$table->data[$themename] = $row;
$table->rowclasses[$themename] = join(' ', $rowclasses);
}
}
echo html_writer::table($table);
echo $OUTPUT->footer();
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