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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/>.
/**
* Library functions for theme_splash
*
* @package theme_splash
* @copyright 2011 Synergy Learning
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
/**
* theme_splash post process function for CSS
* @param string $css Incoming CSS to process
* @param stdClass $theme The theme object
* @return string The processed CSS
*/
function splash_process_css($css, $theme) {
if (!empty($theme->settings->regionwidth)) {
$regionwidth = $theme->settings->regionwidth;
} else {
$regionwidth = null;
}
$css = splash_set_regionwidth($css, $regionwidth);
if (!empty($theme->settings->customcss)) {
$customcss = $theme->settings->customcss;
} else {
$customcss = null;
}
$css = splash_set_customcss($css, $customcss);
return $css;
}
/**
* Sets the region width variable in CSS
*
* @param string $css
* @param mixed $regionwidth
* @return string
*/
function splash_set_regionwidth($css, $regionwidth) {
$tag = '[[setting:regionwidth]]';
$doubletag = '[[setting:regionwidthdouble]]';
$leftmargintag = '[[setting:leftregionwidthmargin]]';
$rightmargintag = '[[setting:rightregionwidthmargin]]';
$replacement = $regionwidth;
if (is_null($replacement)) {
$replacement = 240;
}
$css = str_replace($tag, $replacement.'px', $css);
$css = str_replace($doubletag, ($replacement*2).'px', $css);
$css = str_replace($rightmargintag, ($replacement*3-5).'px', $css);
$css = str_replace($leftmargintag, ($replacement+5).'px', $css);
return $css;
}
/**
* Sets the custom css variable in CSS
*
* @param string $css
* @param mixed $customcss
* @return string
*/
function splash_set_customcss($css, $customcss) {
$tag = '[[setting:customcss]]';
$replacement = $customcss;
if (is_null($replacement)) {
$replacement = '';
}
$css = str_replace($tag, $replacement, $css);
return $css;
}
/**
* Adds the JavaScript for the colour switcher to the page.
*
* @param moodle_page $page
*/
function splash_initialise_colourswitcher(moodle_page $page) {
user_preference_allow_ajax_update('theme_splash_chosen_colour', PARAM_ALPHA);
$page->requires->yui_module('moodle-theme_splash-colourswitcher',
'M.theme_splash.initColourSwitcher', array(array('div'=>'#colourswitcher')));
}
/**
* Gets the colour the user has selected, or the default if they have never changed
*
* @param string $default The default colour to use, normally red
* @return string The colour the user has selected
*/
function splash_get_colour($default='red') {
return get_user_preferences('theme_splash_chosen_colour', $default);
}
/**
* Checks if the user is switching colours with a refresh (JS disabled)
*
* If they are this updates the users preference in the database
*
* @return bool
*/
function splash_check_colourswitch() {
$changecolour = optional_param('splashcolour', null, PARAM_ALPHA);
if (in_array($changecolour, array('red', 'green', 'blue', 'orange'))) {
return set_user_preference('theme_splash_chosen_colour', $changecolour);
}
return false;
}
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