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<?php
require_once WMP_PLUGIN_PATH . "libs/scssphp-0.3.0/scss.inc.php";
use Leafo\ScssPhp\Compiler;
if ( ! class_exists( 'WMobilePack_Themes_Config' ) ) {
require_once(WMP_PLUGIN_PATH.'inc/class-wmp-themes-config.php');
}
if ( ! class_exists( 'WMobilePack_Themes_Compiler' ) ) {
/**
* Overall Themes Management class
*
* This class uses the SCSS compiler and it should not be included outside the admin area
*
* @todo Test methods from this class separately.
*
*/
class WMobilePack_Themes_Compiler
{
/* ----------------------------------*/
/* Methods */
/* ----------------------------------*/
/**
* Compile new css theme file.
*
* The method will return false (error) if:
*
* - it can't compile the theme because the PHP version is too old
* - the uploads folder is not writable
* - the variables SCSS file can't be created
* - the CSS file can't be compiled
*
* @param $theme_timestamp
*
* @return array with the following properties:
* - compiled = (bool) If the theme was successfully compiled
* - error = An error message
*
*/
public function compile_css_file($theme_timestamp)
{
$response = array(
'compiled' => false,
'error' => false
);
if (!is_writable(WMP_FILES_UPLOADS_DIR)){
$response['error'] = "Error uploading theme files, the upload folder ".WMP_FILES_UPLOADS_DIR." is not writable.";
} else {
$wp_uploads_dir = wp_upload_dir();
$wmp_uploads_dir = $wp_uploads_dir['basedir'].'/';
if (!is_writable($wmp_uploads_dir)){
$response['error'] = "Error uploading theme files, your uploads folder ".$wmp_uploads_dir." is not writable.";
} else {
// write scss file with the colors and fonts variables
$generated_vars_scss = $this->generate_variables_file($error);
if ($generated_vars_scss) {
// compile css
$response['compiled'] = $this->generate_css_file($theme_timestamp, $error);
// cleanup variables file
$this->remove_variables_file();
return $response;
}
}
}
return $response;
}
/**
* Delete css file
*
* @param $theme_timestamp
*/
public function remove_css_file($theme_timestamp)
{
$file_path = WMP_FILES_UPLOADS_DIR.'theme-'.$theme_timestamp.'.css';
if (file_exists($file_path))
unlink($file_path);
}
/**
*
* Write a scss file with the theme's settings (colors and fonts)
*
* @param bool $error
* @return bool
*
*/
protected function generate_variables_file(&$error = false)
{
// attempt to open or create the scss file
$file_path = WMP_FILES_UPLOADS_DIR.'_variables.scss';
$fp = @fopen($file_path, "w");
if ($fp !== false) {
// read theme settings
$theme_config = WMobilePack_Themes_Config::get_theme_config();
if ($theme_config !== false){
$color_scheme = WMobilePack_Options::get_setting('color_scheme');
if ($color_scheme == 0){
$colors = WMobilePack_Options::get_setting('custom_colors');
} else {
$colors = $theme_config['presets'][$color_scheme];
}
// write fonts
foreach (array('headlines', 'subtitles', 'paragraphs') as $font_type){
// check if the theme has a particular font setting
if (array_key_exists($font_type.'-font', $theme_config['fonts'])) {
$font_setting = WMobilePack_Options::get_setting('font_'.$font_type);
$font_family = WMobilePack_Themes_Config::$allowed_fonts[$font_setting-1];
fwrite($fp, '$'.$font_type."-font:'".str_replace(" ","",$font_family)."';\r\n");
}
}
// write font size
fwrite($fp, '$base-font-size:'.WMobilePack_Options::get_setting('font_size')."rem;\r\n");
// write colors
foreach ($theme_config['vars'] as $key => $var_name){
fwrite($fp, '$'.$var_name.":".$colors[$key].";\r\n");
}
fclose($fp);
return true;
}
} else {
$error = "Unable to compile theme, the file ".$file_path." is not writable.";
}
return false;
}
/**
*
* Delete variables scss file
*
*/
protected function remove_variables_file()
{
$file_path = WMP_FILES_UPLOADS_DIR.'_variables.scss';
if (file_exists($file_path))
unlink($file_path);
}
/**
*
* Generate a CSS file using the variables and theme SCSS files
*
* The CSS file is created as 'theme-{$theme_timestamp}.css' in the plugin's uploads folder.
*
* @param $theme_timestamp
* @param bool|string $error
* @return bool
*
*/
protected function generate_css_file($theme_timestamp, &$error = false)
{
// attempt to open or create the scss file
$file_path = WMP_FILES_UPLOADS_DIR.'theme-'.$theme_timestamp.'.css';
$fp = @fopen($file_path, "w");
if ($fp !== false) {
$scss_compiler = new Compiler();
$scss_compiler->setImportPaths(array(
WMP_FILES_UPLOADS_DIR,
WMP_PLUGIN_PATH.'frontend/themes/app'.WMobilePack_Options::get_setting('theme').'/scss/'
));
$scss_compiler->setFormatter('scss_formatter_compressed');
try {
// write compiler output directly in the css file
$compiled_file = $scss_compiler->compile('@import "_variables.scss"; @import "phone.scss";');
fwrite($fp, $compiled_file);
fclose($fp);
return true;
} catch (Exception $e){
$error = "Unable to compile theme, the theme's scss file contains errors.";
fclose($fp);
}
} else {
$error = "Unable to compile theme, the file ".$file_path." is not writable.";
}
return false;
}
}
}
|
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