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footnotes/class/settings.php

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<?php
/**
* Includes the Settings class to handle all Plugin settings.
*
* @filesource
* @author Stefan Herndler
* @since 1.5.0 14.09.14 10:43
*/
/**
* The class loads all Settings from each WordPress Settings container.
* It a Setting is not defined yet the default value will be used.
* Each Setting will be validated and sanitized when loaded from the container.
*
* @author Stefan Herndler
* @since 1.5.0
*/
class MCI_Footnotes_Settings {
/**
* Settings Container Key for the label of the reference container.
*
* @author Stefan Herndler
* @since 1.5.0
* @var string
*/
const C_STR_REFERENCE_CONTAINER_NAME = "footnote_inputfield_references_label";
/**
* Settings Container Key to collapse the reference container by default.
*
* @author Stefan Herndler
* @since 1.5.0
* @var bool
*/
const C_BOOL_REFERENCE_CONTAINER_COLLAPSE = "footnote_inputfield_collapse_references";
/**
* Settings Container Key for the positioning of the reference container.
*
* @author Stefan Herndler
* @since 1.5.0
* @var string
*/
const C_STR_REFERENCE_CONTAINER_POSITION = "footnote_inputfield_reference_container_place";
/**
* Settings Container Key to combine identical footnotes.
*
* @author Stefan Herndler
* @since 1.5.0
* @var bool
*/
const C_BOOL_COMBINE_IDENTICAL_FOOTNOTES = "footnote_inputfield_combine_identical";
/**
* Settings Container Key for the start of the footnotes short code.
*
* @author Stefan Herndler
* @since 1.5.0
* @var string
*/
const C_STR_FOOTNOTES_SHORT_CODE_START = "footnote_inputfield_placeholder_start";
/**
* Settings Container Key for the end of the footnotes short code.
*
* @author Stefan Herndler
* @since 1.5.0
* @var string
*/
const C_STR_FOOTNOTES_SHORT_CODE_END = "footnote_inputfield_placeholder_end";
/**
* Settings Container Key for the user defined start of the footnotes short code.
*
* @author Stefan Herndler
* @since 1.5.0
* @var string
*/
const C_STR_FOOTNOTES_SHORT_CODE_START_USER_DEFINED = "footnote_inputfield_placeholder_start_user_defined";
/**
* Settings Container Key for the user defined end of the footnotes short code.
*
* @author Stefan Herndler
* @since 1.5.0
* @var string
*/
const C_STR_FOOTNOTES_SHORT_CODE_END_USER_DEFINED = "footnote_inputfield_placeholder_end_user_defined";
/**
* Settings Container Key for the counter style of the footnotes.
*
* @author Stefan Herndler
* @since 1.5.0
* @var string
*/
const C_STR_FOOTNOTES_COUNTER_STYLE = "footnote_inputfield_counter_style";
/**
* Settings Container Key for the 'I love footnotes' text.
*
* @author Stefan Herndler
* @since 1.5.0
* @var string
*/
const C_STR_FOOTNOTES_LOVE = "footnote_inputfield_love";
/**
* Settings Container Key to look for footnotes in post excerpts.
*
* @author Stefan Herndler
* @since 1.5.0
* @var string
*/
const C_BOOL_FOOTNOTES_IN_EXCERPT = "footnote_inputfield_search_in_excerpt";
/**
* Settings Container Key for the styling before the footnotes index.
*
* @author Stefan Herndler
* @since 1.5.0
* @var string
*/
const C_STR_FOOTNOTES_STYLING_BEFORE = "footnote_inputfield_custom_styling_before";
/**
* Settings Container Key for the styling after the footnotes index.
*
* @author Stefan Herndler
* @since 1.5.0
* @var string
*/
const C_STR_FOOTNOTES_STYLING_AFTER = "footnote_inputfield_custom_styling_after";
/**
* Settings Container Key for the Hyperlink arrow.
*
* @author Stefan Herndler
* @since 1.5.0
* @var string
*/
const C_STR_HYPERLINK_ARROW = "footnote_inputfield_custom_hyperlink_symbol";
/**
* Settings Container Key for the user defined Hyperlink arrow.
*
* @author Stefan Herndler
* @since 1.5.0
* @var string
*/
const C_STR_HYPERLINK_ARROW_USER_DEFINED = "footnote_inputfield_custom_hyperlink_symbol_user";
/**
* Settings Container Key for the user defined styling.
*
* @author Stefan Herndler
* @since 1.5.0
* @var string
*/
const C_STR_CUSTOM_CSS = "footnote_inputfield_custom_css";
/**
* Stores a singleton reference of this class.
*
* @author Stefan Herndler
* @since 1.5.0
* @var MCI_Footnotes_Settings
*/
private static $a_obj_Instance = null;
/**
* Contains all Settings Container names.
*
* @author Stefan Herndler
* @since 1.5.0
* @var array
*/
private $a_arr_Container = array("footnotes_storage", "footnotes_storage_custom");
/**
* Contains all Default Settings for each Settings Container.
*
* @author Stefan Herndler
* @since 1.5.0
* @var array
*/
private $a_arr_Default = array(
"footnotes_storage" => array(
self::C_STR_REFERENCE_CONTAINER_NAME => 'References',
self::C_BOOL_REFERENCE_CONTAINER_COLLAPSE => '',
self::C_STR_REFERENCE_CONTAINER_POSITION => 'post_end',
self::C_BOOL_COMBINE_IDENTICAL_FOOTNOTES => 'yes',
self::C_STR_FOOTNOTES_SHORT_CODE_START => '((',
self::C_STR_FOOTNOTES_SHORT_CODE_END => '))',
self::C_STR_FOOTNOTES_SHORT_CODE_START_USER_DEFINED => '',
self::C_STR_FOOTNOTES_SHORT_CODE_END_USER_DEFINED => '',
self::C_STR_FOOTNOTES_COUNTER_STYLE => 'arabic_plain',
self::C_STR_FOOTNOTES_LOVE => 'no',
self::C_BOOL_FOOTNOTES_IN_EXCERPT => 'yes'
),
"footnotes_storage_custom" => array(
self::C_STR_FOOTNOTES_STYLING_BEFORE => '',
self::C_STR_FOOTNOTES_STYLING_AFTER => ')',
self::C_STR_HYPERLINK_ARROW => '&#8593;',
self::C_STR_HYPERLINK_ARROW_USER_DEFINED => '',
self::C_STR_CUSTOM_CSS => ''
)
);
/**
* Contains all Settings from each Settings container as soon as this class is initialized.
*
* @author Stefan Herndler
* @since 1.5.0
* @var array
*/
private $a_arr_Settings = array();
/**
* Class Constructor. Loads all Settings from each WordPress Settings container.
*
* @author Stefan Herndler
* @since 1.5.0
*/
private function __construct() {
$this->loadAll();
}
/**
* Returns a singleton of this class.
*
* @author Stefan Herndler
* @since 1.5.0
* @return MCI_Footnotes_Settings
*/
public static function instance() {
// no instance defined yet, load it
if (self::$a_obj_Instance === null) {
self::$a_obj_Instance = new self();
}
// return a singleton of this class
return self::$a_obj_Instance;
}
/**
* Returns the name of a specified Settings Container.
*
* @author Stefan Herndler
* @since 1.5.0
* @param int $p_int_Index Settings Container Array Key Index.
* @return string Settings Container name.
*/
public function getContainer($p_int_Index) {
return $this->a_arr_Container[$p_int_Index];
}
/**
* Loads all Settings from each Settings container.
*
* @author Stefan Herndler
* @since 1.5.0
*/
private function loadAll() {
// clear current settings
$this->a_arr_Settings = array();
for ($i = 0; $i < count($this->a_arr_Container); $i++) {
// load settings
$this->a_arr_Settings = array_merge($this->a_arr_Settings, $this->Load($i));
}
}
/**
* Loads all Settings from specified Settings Container.
*
* @author Stefan Herndler
* @since 1.5.0
* @param int $p_int_Index Settings Container Array Key Index.
* @return array Settings loaded from Container of Default Settings if Settings Container is empty (first usage).
*/
private function Load($p_int_Index) {
// load all settings from container
$l_arr_Options = get_option($this->getContainer($p_int_Index));
// load all default settings
$l_arr_Default = $this->a_arr_Default[$this->getContainer($p_int_Index)];
// no settings found, set them to their default value
if (empty($l_arr_Options)) {
return $l_arr_Default;
}
// iterate through all available settings ( = default values)
foreach($l_arr_Default as $l_str_Key => $l_str_Value) {
// available setting not found in the container
if (!array_key_exists($l_str_Key, $l_arr_Options)) {
// define the setting with its default value
$l_arr_Options[$l_str_Key] = $l_str_Value;
}
}
// iterate through each setting in the container
foreach($l_arr_Options as $l_str_Key => $l_str_Value) {
// remove all whitespace at the beginning and end of a setting
$l_str_Value = trim($l_str_Value);
// write the sanitized value back to the setting container
$l_arr_Options[$l_str_Key] = $l_str_Value;
}
// return settings loaded from Container
return $l_arr_Options;
}
/**
* Updates a whole Settings container.
*
* @author Stefan Herndler
* @since 1.5.0
* @param int $p_int_Index Index of the Settings container.
* @param array $p_arr_newValues new Settings.
* @return bool
*/
public function saveOptions($p_int_Index, $p_arr_newValues) {
if (update_option($this->getContainer($p_int_Index), $p_arr_newValues)) {
$this->loadAll();
return true;
}
return false;
}
/**
* Returns the value of specified Settings name.
*
* @author Stefan Herndler
* @since 1.5.0
* @param string $p_str_Key Settings Array Key name.
* @return mixed Value of the Setting on Success or Null in Settings name is invalid.
*/
public function get($p_str_Key) {
return array_key_exists($p_str_Key, $this->a_arr_Settings) ? $this->a_arr_Settings[$p_str_Key] : null;
}
/**
* Deletes each Settings Container and loads the default values for each Settings Container.
*
* @author Stefan Herndler
* @since 1.5.0
*/
public function ClearAll() {
// iterate through each Settings Container
for ($i = 0; $i < count($this->a_arr_Container); $i++) {
// delete the settings container
delete_option($this->getContainer($i));
}
// set settings back to the default values
$this->a_arr_Settings = $this->a_arr_Default;
}
/**
* Register all Settings Container for the Plugin Settings Page in the Dashboard.
* Settings Container Label will be the same as the Settings Container Name.
*
* @author Stefan Herndler
* @since 1.5.0
*/
public function RegisterSettings() {
// register all settings
for ($i = 0; $i < count($this->a_arr_Container); $i++) {
register_setting($this->getContainer($i), $this->getContainer($i));
}
}
}