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lesscss_admin.php
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lesscss_admin.php
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<?php
/**
* Provide administration and parsing of LESSCSS files
*
* @package WordPress
* @subpackage layout_engine
* @since 1.0.0.0
*/
class LE_LESSCSS_Admin
{
public static $cache_settings = array();
public static $cache_theme_settings = array();
/**
* Parse and show the lesscss options
*
* @uses apply_filters() calls 'le_layout_group_title' hook :: convert group slug into title.
*
* @access public
* @since 1.0.0.0
*/
public static function admin()
{
//Compile Callback :: Callback to update style.css
if(isset($_REQUEST['settings-updated']))
{
LE_LESSCSS_Admin::compile();
}
load_template( LE_ABSPATH . 'views' . DS .'theme_settings.php');
}
/**
* Init wp customizer
* @uses apply_filters() calls 'le_customize_register' hook :: to decide to enable wp customizer.
*
* @access public
* @since 1.0.0.0
*/
public static function init()
{
if(apply_filters('le_customize_register', true))
{
add_action( 'customize_register', array('LE_LESSCSS_Admin', 'customize_register'));
}
}
/**
* Init wordpress stylesheet options
*
* @access public
* @since 1.0.0.0
*/
public static function theme_options_init()
{
$settings = LE_LESSCSS_Admin::getSettings();
register_setting
(
'layout_manager_options',
'layout_manager_theme_options',
array('LE_LESSCSS_Admin','validate')
);
foreach($settings as $group=>$priorities)
{
// Register our settings field group
$group_title = apply_filters('le_layout_group_title', $group);
add_settings_section
(
$group, // Unique identifier for the settings section
$group_title, // Section title (we don't want one)
'__return_false', // Section callback (we don't want anything)
'layout_manager' //slug
);
foreach($priorities as $priority)
{
foreach($priority as $setting)
{
add_settings_field( $setting['id'], __( $setting['label'],'layout-engine' ), array('LE_LESSCSS_Admin','input_field'), 'layout_manager', $group, array('id'=>$setting['id'],'description'=>$setting['description'],'value'=>$setting['value'],'type'=>$setting['type'], 'object'=>$setting) );
}
}
}
//Compile Callback :: Customizer Callback to update style.css
add_action('customize_save', array('LE_LESSCSS_Admin','compile_on_customizer_save'));
//Default Metaboxes
add_meta_box('help',__('Help','layout-engine'), array('LE_LESSCSS_Admin','metabox_help'), 'appearance_page_layout_engine', 'side');
}
/**
* Using wordpress customizer to easily change theme settings.
*
*
* @access public
* @since 1.0.0.0
*/
public static function customize_register($wp_customize)
{
$settings = LE_LESSCSS_Admin::getSettings();
$settings = apply_filters('le_customize_register', $settings);
foreach($settings as $group=>$priorities)
{
// Register our settings field group
$group_title = apply_filters('le_layout_group_title', $group);
//Adding section
$group_id = sanitize_title($group_title);
$wp_customize->add_section( $group_id, array(
'title' => $group
) );
foreach($priorities as $priority)
{
foreach($priority as $setting)
{
$control_id = "layout_manager_theme_options[".$setting['id']."]";
//Adding Setting
$wp_customize->add_setting($control_id, array(
'default' => $setting['value'],
'type' => 'option',
'capability' => 'edit_theme_options',
) );
//Adding control
switch($setting['type'])
{
case "checkbox":
//checkbox are ignored
break;
case "radio":
//case "checkbox":
case "select":
$choices = $setting['choices'];
if(!empty($choices) && is_string($choices))
{
$choices_temp = explode(",",$choices);
array_walk($choices_temp, 'trim');
$choices = array();
foreach($choices_temp as $k)
{
$choices[$k] = $k;
}
}
$wp_customize->add_control( $control_id, array(
'section' => $group_id,
'type' => $setting['type'],
'choices' => $choices,
'label' => $setting['label']
) );
break;
case "color":
case "colour":
$wp_customize->add_control( new WP_Customize_Color_Control( $wp_customize, $control_id, array(
'label' => $setting['label'],
'section' => $group_id,
) ) );
break;
case "textarea":
break;
case "image":
$wp_customize->add_control( new WP_Customize_Image_Control( $wp_customize, $control_id, array(
'label' => $setting['label'],
'section' => $group_id,
'context' => 'custom-header',
'removed' => 'remove-header',
'get_url' => 'get_header_image',
'statuses' => array(
'' => __('Default'),
'remove-header' => __('No Image'),
'random-default-image' => __('Random Default Image'),
'random-uploaded-image' => __('Random Uploaded Image'),
)
) ) );
break;
default:
$wp_customize->add_control( $control_id, array(
'section' => $group_id,
'type' => "text",
'label' => $setting['label']
) );
}
}
}
}
}
/**
* Return lesscss options into key, value pair array.
*
*
* @access public
* @since 1.0.0.0
* @return array
*/
public static function get_theme_options()
{
//Get settings from cache
if(!empty(LE_LESSCSS_Admin::$cache_theme_settings)) return LE_LESSCSS_Admin::$cache_theme_settings;
$settings = LE_LESSCSS_Admin::getSettings();
if(!empty($settings))
{
foreach($settings as $group=>$group_settings)
{
if(!is_array($group_settings)) continue;
foreach($group_settings as $inner_settings)
{
if(!is_array($inner_settings)) continue;
foreach($inner_settings as $s)
{
LE_LESSCSS_Admin::$cache_theme_settings[$s['id']] = $s['value'];
}
}
}
}
return LE_LESSCSS_Admin::$cache_theme_settings;
}
/**
* Parse less css file and format settings into associative arrays.
*
*
* @access public
* @since 1.0.0.0
*/
public static function getSettings()
{
global $wp_filesystem;
//Get settings from cache
if(!empty(LE_LESSCSS_Admin::$cache_settings)) return LE_LESSCSS_Admin::$cache_settings;
$settings = array();
//Loading wordpress filesystem factory
if ( ! $wp_filesystem || !is_object($wp_filesystem) )
{
if(!function_exists('WP_Filesystem'))
{
require_once(ABSPATH . 'wp-admin/includes/file.php');
WP_Filesystem();
//return new WP_Error('fs_unavailable', __('Could not access filesystem.'));
}else{
WP_Filesystem();
}
}
$options_saved = get_option('layout_manager_theme_options', array());
//Child theme support
$stylesheet_path = get_stylesheet_directory().DS.'style.less';
if(!$wp_filesystem->exists($stylesheet_path ))
{
$stylesheet_path = get_template_directory().DS.'style.less';
}
if($wp_filesystem->exists($stylesheet_path ))
{
$less_css_data = $wp_filesystem->get_contents($stylesheet_path);
preg_match_all( '/\/'.preg_quote('***').'(.*)'.preg_quote('***').'\/[^@]+?@([a-z-0-9]+)\s?:\s?([^;]+);/imsU', $less_css_data, $match );
if(!empty($match[0]))
{
for($i = 0; $i < count($match[1]); $i++)
{
$id = $match[2][$i];
$defaults = array(
'label' => sprintf(__('Setting %d'), $i ),
'id' => $id,
'description' => '',
'group' => 'default',
'type' => 'text',
'default-value' => $match[3][$i],
'priority' => '0'
);
$args = array();
$parse_line = $match[1][$i];
$parse_line = explode("\n",$parse_line);
for($j = 0; $j < count($parse_line); $j++)
{
$line = rtrim(trim($parse_line[$j]));
$pos = strpos($line, ':');
$label = trim(strtolower(substr($line, 0, $pos)));
$value = trim(substr($line, ($pos + 1), strlen($line)));
if(!empty($label) && !empty($value))
$args[$label] = $value;
}
$settings[$id] = wp_parse_args( $args, $defaults );
//Removing quote from CSS value provided by LessCSS
if(!empty($settings[$id]['default-value']))
{
$settings[$id]['default-value'] = trim(rtrim($settings[$id]['default-value']));
$first_char = substr($settings[$id]['default-value'],0,1);
$last_char = substr($settings[$id]['default-value'], -1);
if($first_char == "'" && $last_char == "'")
{
$settings[$id]['default-value'] = substr($settings[$id]['default-value'], 1, ((strrpos($settings[$id]['default-value'], "'")) - 1));
}
}
if(array_key_exists($id, $options_saved))
$settings[$id]['value'] = $options_saved[$id];
else
$settings[$id]['value'] = trim($settings[$id]['default-value']);
}
}
}
$settings = apply_filters('le_lesscss_settings', $settings);
if(!empty($settings))
{
$settings_priority = array();
foreach($settings as $s)
{
if(empty($s['group'])) $s['group'] = 'default';
$settings_priority[$s['group']][$s['priority']][] = $s;
}
$settings = $settings_priority;
}
LE_LESSCSS_Admin::$cache_settings = $settings;
return $settings;
}
/**
* Parse less css file and format settings into associative arrays.
*
* @param array $args :: id, description, default-value, type
* @access public
* @since 1.0.0.0
*/
public static function input_field($args = array())
{
$id = $args['id'];
if($args['type'] == "radio")
{
$choices = $args['object']['choices'];
if(!empty($choices) && is_string($choices))
{
$choices = explode(",",$choices);
array_walk($choices, 'trim');
}
$sep = "<br />";
if(array_key_exists('sep', $args))
{
$sep = $args['sep'];
}
$before_item = '<div class="input_item input_item_type_'.$args['type'].'">';
if(array_key_exists('before_item', $args))
{
$before_item = $args['before_item'];
}
$after_item = '</div>';
if(array_key_exists('before_item', $args))
{
$after_item = $args['after_item'];
}
foreach($choices as $i=>$choice)
{
printf($before_item.'<input name="layout_manager_theme_options[%1$s]" type="radio" id="%1$s_%4$s" value="%2$s" class="regular-radio %3$s" %5$s /><label for"%1$s_%4$s" class="selectit">%2$s</label>'.$sep.PHP_EOL.$after_item, $args['id'], esc_attr($choice), esc_attr($args['class']), $i, checked( $choice, $args['value'], false ));
}
}elseif($args['type'] == "checkbox")
{
$choices = $args['object']['choices'];
if(!empty($choices) && is_string($choices))
{
$choices = explode(",",$choices);
array_walk($choices, 'trim');
}
$sep = "<br />";
if(array_key_exists('sep', $args))
{
$sep = $args['sep'];
}
$before_item = '<div class="input_item input_item_type_'.$args['type'].'">';
if(array_key_exists('before_item', $args))
{
$before_item = $args['before_item'];
}
$after_item = '</div>';
if(array_key_exists('before_item', $args))
{
$after_item = $args['after_item'];
}
if(!is_array($args['value'])) $args['value'] = array($args['value']);
foreach($choices as $i=>$choice)
{
if(in_array($choice, $args['value']))
$checked = ' checked="true" ';
else
$checked = '';
printf($before_item.'<input name="layout_manager_theme_options[%1$s][]" type="checkbox" id="%1$s_%4$s" value="%2$s" class="regular-radio %3$s" %5$s /><label for"%1$s_%4$s" class="selectit">%2$s</label>'.$sep.PHP_EOL.$after_item, $args['id'], esc_attr($choice), esc_attr($args['class']), $i, $checked);
}
}elseif($args['type'] == "select")
{
$choices = $args['object']['choices'];
if(!empty($choices) && is_string($choices))
{
$choices = explode(",",$choices);
array_walk($choices, 'trim');
}
printf('<select name="layout_manager_theme_options[%1$s]" id="%1$s" class="regular-select %2$s">'.PHP_EOL, $args['id'], esc_attr($args['class']));
foreach($choices as $i=>$choice)
{
printf('<option value="%1$s" %2$s />%1$s</option>'.PHP_EOL, esc_attr($choice), selected( $choice, $args['value'], false ));
}
echo '</select>';
}elseif($args['type'] == "textarea")
{
$textarea_options = array(
'rows' => (isset($args['rows']) ? $args['rows'] : 3),
'cols' => (isset($args['cols']) ? $args['cols'] : 48)
);
printf('<textarea id="%1$s" name="%1$s" rows="%4$d" cols="%5$d" class="%3$s">%2$s</textarea>', $args['id'], esc_attr($args['value']), esc_attr($args['class']), $textarea_options['rows'], $textarea_options['cols']);
}elseif($args['type'] == "color" || $args['type'] == "colour")
{
$textarea_options = array(
'rows' => (isset($args['rows']) ? $args['rows'] : 3),
'cols' => (isset($args['cols']) ? $args['cols'] : 48)
);
//RGB to hex
if(strpos($args['value'],'rgb') !== false)
{
$args['value'] = LE_LESSCSS_Admin::rgb2hex($args['value']);
}
$default_value_hex = $args['object']['default-value'];
if(strpos($args['object']['default-value'],'rgb') !== false)
{
$default_value_hex = LE_LESSCSS_Admin::rgb2hex($args['object']['default-value']);
}
?>
<div class="le_color_picker <?php echo $args['class']; ?>" id="le_color_picker_<?php echo $args['id']; ?>">
<input type="text" name="layout_manager_theme_options[<?php echo $args['id']; ?>]" id="link-color-<?php echo $args['id']; ?>" class="link-color" value="<?php echo esc_attr( $args['value'] ); ?>" />
<a href="#" class="pickcolor hide-if-no-js link-color-example"></a>
<input type="button" class="pickcolor button hide-if-no-js" value="<?php esc_attr_e( 'Select a Color' ); ?>" />
<div id="colorPickerDiv_<?php echo $args['id']; ?>" class="colorPickerDiv" style="z-index: 100; background:#eee; border:1px solid #ccc; position:absolute; display:none;"></div>
<br />
<span><?php printf( __( 'Default color: %s' ), '<a id="default-color_'.$args['id'].'" class="default-color" data-color="' . $default_value_hex. '">' . $args['object']['default-value']. '</a>' ); ?></span>
</div>
<?php
}else{
printf('<input name="layout_manager_theme_options[%1$s]" type="text" id="%1$s" value="%2$s" class="regular-text %3$s" />', $args['id'], esc_attr($args['value']), esc_attr($args['class']));
}
}
/**
* Validate settings.
*
* @todo implement
* @param array $args :: id, description, default-value, type
* @access public
* @since 1.0.0.0
*/
public static function validate( $input )
{
/**
$input['show_menu'] = ( $input['show_menu'] == 1 ? true : false );
$input['tag_line'] = wp_filter_nohtml_kses($input['tag_line']);
*/
return $input;
}
/**
* Register a callback to save data on customizer submit action
*
*
* @access public
* @since 1.0.0.0
*/
public static function compile_on_customizer_save($wp_customize)
{
//As there is no callback after customizer save data, so we change the variables through posted data
add_filter('le_lesscss_variables', array('LE_LESSCSS_Admin','less_css_variables_reset'), 10, 2);
//Run compiler
LE_LESSCSS_Admin::compile();
}
/**
* Helper filter callback to reset the settings based on new setting sent by user.
* As customizer do not provide any callback for aftersave; we have to intercept data in advance.
*
* @access public
* @since 1.0.0.0
*/
public static function less_css_variables_reset($less_css_src, $lesscss_variables)
{
if ( isset( $_POST['customized'] ) )
{
$post_values = json_decode( stripslashes( $_POST['customized'] ), true );
if(is_array($post_values) && !empty($post_values))
{
foreach($less_css_src as $k=>$v)
{
$posted_key = "layout_manager_theme_options[".$k."]";
if(array_key_exists($posted_key, $post_values))
{
$less_css_src[$k] = $post_values[$posted_key];
}
}
}
}
return $less_css_src;
}
/**
* Helper function to compile style.less
*
* @return boolean
* @access public
* @since 1.0.0.0
*/
public static function compile()
{
global $wp_filesystem;
//Loading wordpress filesystem factory
if ( ! $wp_filesystem || !is_object($wp_filesystem) )
{
if(!function_exists('WP_Filesystem'))
{
require_once(ABSPATH . 'wp-admin/includes/file.php');
WP_Filesystem();
//return new WP_Error('fs_unavailable', __('Could not access filesystem.'));
}else{
WP_Filesystem();
}
}
//Child theme support
$stylesheet_path = get_stylesheet_directory().DS.'style.less';
if(!$wp_filesystem->exists($stylesheet_path ))
{
$stylesheet_path = get_template_directory().DS.'style.less';
}
if($wp_filesystem->exists($stylesheet_path ))
{
$settings = (array) LE_LESSCSS_Admin::getSettings();
$lesscss_variables = array();
$lesscss_data = array();
foreach($settings as $group=>$priorities)
{
foreach($priorities as $priority)
{
foreach($priority as $setting)
{
$lesscss_data[$setting['id']] = $setting;
if(is_array($setting['value'])) $setting['value'] = implode(", ", $setting['value']);
$lesscss_variables[$setting['id']] = $setting['value'];
}
}
}
$lesscss_variables = apply_filters('le_lesscss_variables', $lesscss_variables, $lesscss_data);
$less_css_src = $wp_filesystem->get_contents($stylesheet_path);
$less_compiler = new lessc_le_compiler();
$less_css_compiled = $less_compiler->parse($less_css_src, $lesscss_variables);
//Appending theme information (LessCSS remove all comments, so try find and append again)
preg_match_all('/\/\*.*?\*\//s', $less_css_src, $m);
if(!empty($m[0]))
{
foreach($m[0] as $s)
{
if(strpos($s,'Theme Name') !== false)
{
$less_css_compiled = $s.PHP_EOL.PHP_EOL.$less_css_compiled;
break;
}
}
}
//Compiling stylesheet
$stylesheet_path = str_replace(".less",".css",$stylesheet_path);
return $wp_filesystem->put_contents($stylesheet_path, $less_css_compiled);
}
}
/**
* Helper function to css rgb color into hex value
*
* @param string $color
* @return string $color in hex format
* @access public
* @since 1.0.0.0
*/
public static function rgb2hex($color)
{
if (is_array($color) && sizeof($color) == 3)
{
list($r, $g, $b) = $color;
}elseif(strpos($color, "rgb") !== false)
{
preg_match("/rgb\s*\(\s*([^,]+)\s*,\s*([^,]+)\s*,\s*([^,]+)\s*\)/i", $color, $arr);
if(!empty($arr))
{
list($search, $r, $g, $b) = $arr;
}
}
$r = intval($r);
$g = intval($g);
$b = intval($b);
$r = dechex($r<0?0:($r>255?255:$r));
$g = dechex($g<0?0:($g>255?255:$g));
$b = dechex($b<0?0:($b>255?255:$b));
$color = (strlen($r) < 2?'0':'').$r;
$color .= (strlen($g) < 2?'0':'').$g;
$color .= (strlen($b) < 2?'0':'').$b;
return '#'.$color;
}
/**
* Helper function to css hex color into css rgb
*
* @param string $color
* @return string $color in hex format
* @access public
* @since 1.0.0.0
*/
public static function hex2rgb($color)
{
if ($color[0] == '#')
$color = substr($color, 1);
if (strlen($color) == 6)
list($r, $g, $b) = array($color[0].$color[1],
$color[2].$color[3],
$color[4].$color[5]);
elseif (strlen($color) == 3)
list($r, $g, $b) = array($color[0].$color[0], $color[1].$color[1], $color[2].$color[2]);
else
return false;
$r = hexdec($r); $g = hexdec($g); $b = hexdec($b);
return "rgb($r, $g, $b)";
}
/**
* Default metabox for setting page
*
* @access public
* @since 1.0.0.0
*/
public static function metabox_help()
{
?>
<ul class="list_metabox">
<li><a href="https://twitter.com/intent/tweet?text=<?php echo urlencode(__("type your question here...")); ?>&hashtags=layout_engine&via=simple_ux" target="_blank"><?php _e('Ask your question on twitter','layout-engine'); ?></a></li>
<li><a href="http://simpleux.co.uk/plugins/wordpress/layout-engine" target="_blank"><?php _e('Documentation','layout-engine'); ?></a></li>
<li><a href="<?php echo admin_url("theme-install.php?tab=search&features[]=layout-engine"); ?>"><?php _e('Browse LE compatible themes','layout-engine'); ?></a></li>
</ul>
<?php
}
}
/**
* Extended version of Less CSS compiler which prefer injected variable values over style sheet variable values.
*
* @package WordPress
* @subpackage layout_engine
* @since 1.0.0.0
*/
class lessc_le_compiler extends lessc
{
protected function compileProp($prop, $block, $tags)
{
if($prop[0] == "assign")
{
list(, $name, $value) = $prop;
if ($name[0] == $this->vPrefix)
{
if(in_array($name, array_keys($this->env->parent->store)))
{
//Do not override default value
return false;
}
}
}
return parent::compileProp($prop, $block, $tags, &$_lines, &$_blocks);
}
}
add_action( 'admin_init', array('LE_LESSCSS_Admin','theme_options_init' ));
add_action( 'init', array('LE_LESSCSS_Admin', 'init')); //callback for customizer as it is frontend based.
?>