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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
*
* Edited for:
* 2.0.4 restore arrow settings 2020-11-02T2115+0100
* 2.0.7 remove hook the_post 2020-11-06T1342+0100
* 2.1.0 add read-on button label customization 2020-11-08T2149+0100
* 2.1.1 fix tooltips on site by alternative 2020-11-11T1819+0100
* 2.1.1 fix disabling backlink symbol 2020-11-16T2021+0100
* 2.1.1 fix superscript by making it optional
* 2.1.1 fix start pages by option to hide ref container
* 2.1.1 fix ref container by option restoring 3-column layout
* 2.1.1 fix ref container by option to switch index/symbol 2020-11-16T2022+0100
* 2.1.1 fix ref container positioning by priority level 2020-11-17T0205+0100
*
* Last modified: 2020-11-17T0311+0100
*/
/**
* 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 DEFINITIONS
*/
/**
* 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 Expert mode.
*
* @author Stefan Herndler
* @since 1.5.5
* @var string
*/
const C_BOOL_FOOTNOTES_EXPERT_MODE = "footnote_inputfield_enable_expert_mode";
/**
* 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 mouse-over box to be enabled.
*
* @author Stefan Herndler
* @since 1.5.2
* @var string
*/
const C_BOOL_FOOTNOTES_MOUSE_OVER_BOX_ENABLED = "footnote_inputfield_custom_mouse_over_box_enabled";
/**
* Settings Container Key for alternative tooltip implementation
*
* @since 2.2.0
* @var string
*
* 2020-11-11T1817+0100
*/
const C_BOOL_FOOTNOTES_MOUSE_OVER_BOX_ALTERNATIVE = "footnote_inputfield_custom_mouse_over_box_alternative";
/**
* Settings Container Key for the mouse-over box to display only an excerpt.
*
* @author Stefan Herndler
* @since 1.5.4
* @var string
*/
const C_BOOL_FOOTNOTES_MOUSE_OVER_BOX_EXCERPT_ENABLED = "footnote_inputfield_custom_mouse_over_box_excerpt_enabled";
/**
* Settings Container Key for the mouse-over box to define the max. length of the enabled excerpt.
*
* @author Stefan Herndler
* @since 1.5.4
* @var string
*/
const C_INT_FOOTNOTES_MOUSE_OVER_BOX_EXCERPT_LENGTH = "footnote_inputfield_custom_mouse_over_box_excerpt_length";
/**
* Settings Container Key for the mouse-over box to define the positioning.
*
* @author Stefan Herndler
* @since 1.5.7
* @var string
*/
const C_STR_FOOTNOTES_MOUSE_OVER_BOX_POSITION = "footnote_inputfield_custom_mouse_over_box_position";
/**
* Settings Container Key for the mouse-over box to define the offset (x).
*
* @author Stefan Herndler
* @since 1.5.7
* @var string
*/
const C_INT_FOOTNOTES_MOUSE_OVER_BOX_OFFSET_X = "footnote_inputfield_custom_mouse_over_box_offset_x";
/**
* Settings Container Key for the mouse-over box to define the offset (y).
*
* @author Stefan Herndler
* @since 1.5.7
* @var string
*/
const C_INT_FOOTNOTES_MOUSE_OVER_BOX_OFFSET_Y = "footnote_inputfield_custom_mouse_over_box_offset_y";
/**
* Settings Container Key for the mouse-over box to define the color.
*
* @author Stefan Herndler
* @since 1.5.6
* @var string
*/
const C_STR_FOOTNOTES_MOUSE_OVER_BOX_COLOR = "footnote_inputfield_custom_mouse_over_box_color";
/**
* Settings Container Key for the mouse-over box to define the background color.
*
* @author Stefan Herndler
* @since 1.5.6
* @var string
*/
const C_STR_FOOTNOTES_MOUSE_OVER_BOX_BACKGROUND = "footnote_inputfield_custom_mouse_over_box_background";
/**
* Settings Container Key for the mouse-over box to define the border width.
*
* @author Stefan Herndler
* @since 1.5.6
* @var string
*/
const C_INT_FOOTNOTES_MOUSE_OVER_BOX_BORDER_WIDTH = "footnote_inputfield_custom_mouse_over_box_border_width";
/**
* Settings Container Key for the mouse-over box to define the border color.
*
* @author Stefan Herndler
* @since 1.5.6
* @var string
*/
const C_STR_FOOTNOTES_MOUSE_OVER_BOX_BORDER_COLOR = "footnote_inputfield_custom_mouse_over_box_border_color";
/**
* Settings Container Key for the mouse-over box to define the border radius.
*
* @author Stefan Herndler
* @since 1.5.6
* @var string
*/
const C_INT_FOOTNOTES_MOUSE_OVER_BOX_BORDER_RADIUS = "footnote_inputfield_custom_mouse_over_box_border_radius";
/**
* Settings Container Key for the mouse-over box to define the max width.
*
* @author Stefan Herndler
* @since 1.5.6
* @var string
*/
const C_INT_FOOTNOTES_MOUSE_OVER_BOX_MAX_WIDTH = "footnote_inputfield_custom_mouse_over_box_max_width";
/**
* Settings Container Key for the mouse-over box to define the box-shadow color.
*
* @author Stefan Herndler
* @since 1.5.8
* @var string
*/
const C_STR_FOOTNOTES_MOUSE_OVER_BOX_SHADOW_COLOR = "footnote_inputfield_custom_mouse_over_box_shadow_color";
/**
* 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";
/**
* Settings Container Key the activation of the_title hook.
*
* @author Stefan Herndler
* @since 1.5.5
* @var string
*/
const C_BOOL_EXPERT_LOOKUP_THE_TITLE = "footnote_inputfield_expert_lookup_the_title";
/**
* Settings Container Key the activation of the_content hook.
*
* @author Stefan Herndler
* @since 1.5.5
* @var string
*/
const C_BOOL_EXPERT_LOOKUP_THE_CONTENT = "footnote_inputfield_expert_lookup_the_content";
/**
* Settings Container Key the activation of the_excerpt hook.
*
* @author Stefan Herndler
* @since 1.5.5
* @var string
*/
const C_BOOL_EXPERT_LOOKUP_THE_EXCERPT = "footnote_inputfield_expert_lookup_the_excerpt";
/**
* Settings Container Key the activation of widget_title hook.
*
* @author Stefan Herndler
* @since 1.5.5
* @var string
*/
const C_BOOL_EXPERT_LOOKUP_WIDGET_TITLE = "footnote_inputfield_expert_lookup_widget_title";
/**
* Settings Container Key the activation of widget_text hook.
*
* @author Stefan Herndler
* @since 1.5.5
* @var string
*/
const C_BOOL_EXPERT_LOOKUP_WIDGET_TEXT = "footnote_inputfield_expert_lookup_widget_text";
/**
* Settings Container Key for the label of the 'Read on' button in truncated tooltips
*
* @since 2.1.0
* @var string
*
* 2020-11-08T2106+0100
*/
const C_STR_FOOTNOTES_TOOLTIP_READON_LABEL = "footnote_inputfield_readon_label";
/**
* Settings Container Keys of options fixing default layout
*
* @since 2.1.1
* @var string
*
* 2020-11-16T0859+0100
*/
const C_BOOL_FOOTNOTES_REFERRER_SUPERSCRIPT_TAGS = "footnotes_inputfield_referrer_superscript_tags";
const C_BOOL_REFERENCE_CONTAINER_BACKLINK_SYMBOL_ENABLE = "footnotes_inputfield_reference_container_backlink_symbol_enable";
const C_BOOL_REFERENCE_CONTAINER_START_PAGE_ENABLE = "footnotes_inputfield_reference_container_start_page_enable";
const C_BOOL_REFERENCE_CONTAINER_3COLUMN_LAYOUT_ENABLE = "footnotes_inputfield_reference_container_3column_layout_enable";
const C_BOOL_REFERENCE_CONTAINER_BACKLINK_SYMBOL_SWITCH = "footnotes_inputfield_reference_container_backlink_symbol_switch";
const C_INT_EXPERT_LOOKUP_THE_TITLE_PRIORITY_LEVEL = "footnote_inputfield_expert_lookup_the_title_priority_level";
const C_INT_EXPERT_LOOKUP_THE_CONTENT_PRIORITY_LEVEL = "footnote_inputfield_expert_lookup_the_content_priority_level";
const C_INT_EXPERT_LOOKUP_THE_EXCERPT_PRIORITY_LEVEL = "footnote_inputfield_expert_lookup_the_excerpt_priority_level";
const C_INT_EXPERT_LOOKUP_WIDGET_TITLE_PRIORITY_LEVEL = "footnote_inputfield_expert_lookup_widget_title_priority_level";
const C_INT_EXPERT_LOOKUP_WIDGET_TEXT_PRIORITY_LEVEL = "footnote_inputfield_expert_lookup_widget_text_priority_level";
/**
* 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", "footnotes_storage_expert");
/**
* 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 => 'no',
self::C_STR_REFERENCE_CONTAINER_POSITION => 'post_end',
self::C_BOOL_COMBINE_IDENTICAL_FOOTNOTES => 'yes',
self::C_BOOL_REFERENCE_CONTAINER_BACKLINK_SYMBOL_ENABLE => 'yes',
self::C_BOOL_REFERENCE_CONTAINER_START_PAGE_ENABLE => 'yes',
self::C_BOOL_REFERENCE_CONTAINER_3COLUMN_LAYOUT_ENABLE => 'no',
self::C_BOOL_REFERENCE_CONTAINER_BACKLINK_SYMBOL_SWITCH => 'no',
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',
// since removal of the_post hook, expert mode is no danger zone
// not for experts only; raising awareness about relative positioning
// changed default to 'yes':
self::C_BOOL_FOOTNOTES_EXPERT_MODE => 'yes'
),
"footnotes_storage_custom" => array(
self::C_STR_FOOTNOTES_TOOLTIP_READON_LABEL => 'Continue reading',
self::C_BOOL_FOOTNOTES_REFERRER_SUPERSCRIPT_TAGS => 'yes',
// The default footnote referrer surroundings should be square brackets:
// * with respect to baseline footnote referrers new option;
// * as in English or US American typesetting;
// * for better UX thanks to a more button-like appearance;
// * for stylistic consistency with the expand-collapse button;
self::C_STR_FOOTNOTES_STYLING_BEFORE => '[',
self::C_STR_FOOTNOTES_STYLING_AFTER => ']',
self::C_BOOL_FOOTNOTES_MOUSE_OVER_BOX_ENABLED => 'yes',
// alternative, low-script tooltips using CSS for transitions
// in response to user demand for website with jQuery UI outage
self::C_BOOL_FOOTNOTES_MOUSE_OVER_BOX_ALTERNATIVE => 'no',
// The mouse over content truncation should be enabled by default
// to raise awareness of the functionality and to prevent the screen
// from being filled at mouse-over, and to allow the Continue reading:
self::C_BOOL_FOOTNOTES_MOUSE_OVER_BOX_EXCERPT_ENABLED => 'yes',
// The truncation length is raised from 150 to 200 chars:
self::C_INT_FOOTNOTES_MOUSE_OVER_BOX_EXCERPT_LENGTH => 200,
// The default position should not be lateral because of the risk
// the box gets squeezed between note anchor at line end and window edge,
// and top because reading at the bottom of the window is more likely:
self::C_STR_FOOTNOTES_MOUSE_OVER_BOX_POSITION => 'top center',
self::C_INT_FOOTNOTES_MOUSE_OVER_BOX_OFFSET_X => 0,
// The vertical offset must be negative for the box not to cover
// the current line of text (web coordinates origin is top left):
self::C_INT_FOOTNOTES_MOUSE_OVER_BOX_OFFSET_Y => -7,
self::C_STR_FOOTNOTES_MOUSE_OVER_BOX_COLOR => '',
// The mouse over box shouldnt feature a colored background
// by default, due to diverging user preferences. White is neutral:
self::C_STR_FOOTNOTES_MOUSE_OVER_BOX_BACKGROUND => '#ffffff',
self::C_INT_FOOTNOTES_MOUSE_OVER_BOX_BORDER_WIDTH => 1,
self::C_STR_FOOTNOTES_MOUSE_OVER_BOX_BORDER_COLOR => '#cccc99',
// The mouse over box corners mustnt be rounded as that is outdated:
self::C_INT_FOOTNOTES_MOUSE_OVER_BOX_BORDER_RADIUS => 0,
// The width should be limited to start with, for the box to have shape:
self::C_INT_FOOTNOTES_MOUSE_OVER_BOX_MAX_WIDTH => 450,
self::C_STR_FOOTNOTES_MOUSE_OVER_BOX_SHADOW_COLOR => '#666666',
self::C_STR_HYPERLINK_ARROW => '&#8593;',
self::C_STR_HYPERLINK_ARROW_USER_DEFINED => '',
self::C_STR_CUSTOM_CSS => ''
),
"footnotes_storage_expert" => array(
// Titles should all be enabled by default to prevent users from
// thinking at first that the feature is broken in post titles.
// See <https://wordpress.org/support/topic/more-feature-ideas/>
// Yet in titles, footnotes are functionally pointless in WordPress.
self::C_BOOL_EXPERT_LOOKUP_THE_TITLE => '',
self::C_BOOL_EXPERT_LOOKUP_THE_CONTENT => 'yes',
self::C_BOOL_EXPERT_LOOKUP_THE_EXCERPT => 'yes',
self::C_BOOL_EXPERT_LOOKUP_WIDGET_TITLE => '',
self::C_BOOL_EXPERT_LOOKUP_WIDGET_TEXT => 'yes',
// initially hard-coded default
// shows "9223372036854775807" in the numbox
// empty should be interpreted as PHP_INT_MAX,
// but a numbox cannot be set to empty: <https://github.com/Modernizr/Modernizr/issues/171>
// define -1 as PHP_INT_MAX instead
self::C_INT_EXPERT_LOOKUP_THE_TITLE_PRIORITY_LEVEL => PHP_INT_MAX,
self::C_INT_EXPERT_LOOKUP_THE_CONTENT_PRIORITY_LEVEL => PHP_INT_MAX,
self::C_INT_EXPERT_LOOKUP_THE_EXCERPT_PRIORITY_LEVEL => PHP_INT_MAX,
self::C_INT_EXPERT_LOOKUP_WIDGET_TITLE_PRIORITY_LEVEL => PHP_INT_MAX,
self::C_INT_EXPERT_LOOKUP_WIDGET_TEXT_PRIORITY_LEVEL => PHP_INT_MAX,
)
);
/**
* 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];
}
/**
* Returns the default values of a specific Settings Container.
*
* @author Stefan Herndler
* @since 1.5.6
* @param int $p_int_Index Settings Container Aray Key Index.
* @return array
*/
public function getDefaults($p_int_Index) {
return $this->a_arr_Default[$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));
}
}
}