2021-03-01 07:37:59 +00:00
< ? php // phpcs:disable WordPress.Files.FileName.InvalidClassFileName, WordPress.Security.EscapeOutput.OutputNotEscaped
/**
* Includes the core function of the Plugin - Search and Replace the Footnotes .
*
* @ filesource
* @ package footnotes
* @ since 1.5 . 0
*
* @ lastmodified 2021 - 02 - 20 T0438 + 0100
*
* @ since 2.0 . 0 Bugfix : various .
* @ since 2.0 . 4 Bugfix : Referrers and backlinks : remove hard links to streamline browsing history , thanks to @ theroninjedi47 bug report .
* @ since 2.0 . 5 Bugfix : Reference container : fix relative position through priority level , thanks to @ june01 @ imeson @ spaceling bug reports , thanks to @ spaceling code contribution .
* @ since 2.0 . 5 Update : Hooks : Default - enable all hooks to prevent footnotes from seeming broken in some parts .
* @ since 2.0 . 6 Bugfix : Infinite scroll : debug autoload by adding post ID , thanks to @ docteurfitness code contribution .
* @ since 2.0 . 6 Bugfix : Priority level back to PHP_INT_MAX ( ref container positioning not this plugin’ responsibility ) .
* @ since 2.0 . 6 Bugfix : Reference container : fix line breaking behavior in footnote number clusters .
* @ since 2.0 . 7 BUGFIX : Hooks : Default - disable 'the_post' , thanks to @ spaceling @ markcheret @ nyamachi @ whichgodsaves @ spiralofhope2 @ mmallett @ andreasra @ widecast @ ymorin007 @ tashi1es bug reports .
* @ since 2.0 . 9 Bugfix : Remove the_post hook 2020 - 11 - 08 T1839 + 0100.
* @ since 2.1 . 0 Adding : Tooltips : Read - on button : Label : configurable instead of localizable , thanks to @ rovanov example provision .
* @ since 2.1 . 1 Bugfix : Referrers , reference container : Combining identical footnotes : fix dead links and ensure referrer - backlink bijectivity , thanks to @ happyches bug report .
* @ since 2.1 . 1 Bugfix : Reference container : fix start pages by making its display optional , thanks to @ dragon013 bug report .
* @ since 2.1 . 1 Bugfix : Referrers : new setting for vertical align : superscript ( default ) or baseline ( optional ), thanks to @ cwbayer bug report .
* @ since 2.1 . 1 Bugfix : Reference container : option to append symbol ( prepended by default ), thanks to @ spaceling code contribution .
* @ since 2.1 . 1 Bugfix : Reference container : Backlink symbol : make optional , not suggest configuring it to invisible , thanks to @ spaceling feedback .
* @ since 2.1 . 1 Bugfix : Dashboard : priority level setting for the_content hook , thanks to @ imeson bug report .
* @ since 2.1 . 1 Bugfix : Tooltips : optional alternative JS implementation with CSS transitions to fix configuration - related outage , thanks to @ andreasra feedback .
* @ since 2.1 . 1 Bugfix : Reference container : option to restore pre - 2.0 . 0 layout with the backlink symbol in an extra column .
* @ since 2.1 . 2 Bugfix : Dashboard : priority level settings for all other hooks , thanks to @ nikelaos bug report .
* @ since 2.1 . 3 Bugfix : Reference container : fix width in mobile view by URL wrapping for Unicode - non - conformant browsers , thanks to @ karolszakiel bug report .
* @ since 2.1 . 4 Bugfix : Styling : Referrers and backlinks : make link elements optional to fix issues .
* @ since 2.1 . 4 Bugfix : Reference container : Backlink symbol : support for appending when combining identicals is on .
* @ since 2.1 . 4 Bugfix : Reference container : make separating and terminating punctuation optional and configurable , thanks to @ docteurfitness issue report and code contribution .
* @ since 2.1 . 4 Bugfix : Reference container : Backlinks : fix stacked enumerations by adding optional line breaks .
* @ since 2.1 . 4 Bugfix : Reference container : fix layout issues by moving backlink column width to settings .
* @ since 2.1 . 4 Bugfix : Styling : Tooltips : fix font size issue by adding font size to settings with legacy as default .
* @ since 2.1 . 4 Bugfix : Scroll offset : make configurable to fix site - dependent issues related to fixed headers .
* @ since 2.1 . 4 Bugfix : Scroll duration : make configurable to conform to website content and style requirements .
* @ since 2.1 . 4 Bugfix : Tooltips : make display delays and fade durations configurable to conform to website style .
* @ since 2.1 . 4 Bugfix : Referrers and backlinks : Styling : make link elements optional to fix issues , thanks to @ docteurfitness issue report and code contribution .
* @ since 2.1 . 4 Bugfix : Reference container , tooltips : fix line wrapping of URLs ( hyperlinked or not ) based on pattern , not link element .
* @ since 2.1 . 4 Bugfix : Reference container : Backlink symbol : support for appending when combining identicals is on .
* @ since 2.1 . 4 Bugfix : Reference container : Backlinks : fix line breaking with respect to separators and terminators .
* @ since 2.1 . 5 Bugfix : Reference container , tooltips : URL wrap : exclude image source too , thanks to @ bjrnet21 bug report .
* @ since 2.1 . 6 Bugfix : Reference container , tooltips : URL wrap : fix regex , thanks to @ a223123131 bug report .
* @ since 2.1 . 6 Bugfix : Dashboard : URL wrap : add option to properly enable / disable URL wrap .
* @ since 2.2 . 0 Adding : Reference container : support for custom position shortcode , thanks to @ hamshe issue report .
* @ since 2.2 . 3 Bugfix : Custom CSS : insert new CSS in the public page header element after existing CSS .
* @ since 2.2 . 5 Bugfix : Reference container : delete position shortcode if unused because position may be widget or footer , thanks to @ hamshe bug report .
* @ since 2.2 . 5 Bugfix : Reference container : Label : make bottom border an option , thanks to @ markhillyer issue report .
* @ since 2.2 . 5 Bugfix : Reference container : Label : option to select paragraph or heading element , thanks to @ markhillyer issue report .
* @ since 2.2 . 5 Update : Tooltips : Alternative tooltips : connect to position / timing settings ( for themes not supporting jQuery tooltips ) .
* @ since 2.2 . 6 Bugfix : Reference container , tooltips : URL wrap : make the quotation mark optional wrt query parameters , thanks to @ spiralofhope2 bug report .
* @ since 2.2 . 7 Bugfix : Reference container , tooltips : URL wrap : remove a bug introduced in the regex , thanks to @ rjl20 @ spaceling @ lukashuggenberg @ klusik @ friedrichnorth @ bernardzit bug reports .
* @ since 2.2 . 8 Bugfix : Reference container , tooltips : URL wrap : correctly make the quotation mark optional wrt query parameters , thanks to @ spiralofhope2 bug report .
* @ since 2.2 . 9 Bugfix : Reference container , tooltips : URL wrap : account for RFC 2396 allowed characters in parameter names .
* @ since 2.2 . 9 Bugfix : Reference container , widget_text hook : support for multiple containers in a page , thanks to @ justbecuz bug report .
* @ since 2.2 . 9 Bugfix : Reference container , tooltips : URL wrap : exclude URLs also where the equals sign is preceded by an entity or character reference .
* @ since 2.2 . 10 Bugfix : Reference container : add option for table borders to restore pre - 2.0 . 0 design , thanks to @ noobishh issue report .
* @ since 2.2 . 10 Bugfix : Reference container , tooltips : URL wrap : support also file transfer protocol URLs .
* @ since 2.3 . 0 Bugfix : Reference container : convert top padding to margin and make it a setting , thanks to @ hamshe bug report .
* @ since 2.3 . 0 Adding : Referrers and backlinks : optional hard links for AMP compatibility , thanks to @ psykonevro bug report , thanks to @ martinneumannat code contribution .
* @ since 2.3 . 0 Bugfix : Dashboard : Custom CSS : swap migration Boolean , meaning 'show legacy' instead of 'migration complete' , due to storage data structure constraints .
* @ since 2.4 . 0 Adding : Footnote delimiters : syntax validation for balanced footnote start and end tag short codes .
* @ since 2.4 . 0 Bugfix : Scroll offset : initialize to safer one third window height for more robustness , thanks to @ lukashuggenberg bug report .
* @ since 2.4 . 0 Bugfix : Reference container : Label : set empty label to U + 202 F NNBSP for more robustness , thanks to @ lukashuggenberg feedback .
* @ since 2.4 . 0 Bugfix : Templates : optimize template load and processing based on settings , thanks to @ misfist code contribution .
* @ since 2.4 . 0 Bugfix : Process : initialize hard link address variables to empty string to fix 'undefined variable' bug , thanks to @ a223123131 bug report .
* @ since 2.5 . 0 Bugfix : Hooks : support footnotes on category pages , thanks to @ vitaefit bug report , thanks to @ misfist code contribution .
* @ since 2.5 . 0 Bugfix : Footnote delimiters : Syntax validation : exclude certain cases involving scripts , thanks to @ andreasra bug report .
* @ since 2.5 . 0 Bugfix : Footnote delimiters : Syntax validation : complete message with hint about setting , thanks to @ andreasra bug report .
* @ since 2.5 . 0 Bugfix : Footnote delimiters : Syntax validation : limit length of quoted string to 300 characters , thanks to @ andreasra bug report .
* @ since 2.5 . 1 Bugfix : Hooks : support footnotes in Popup Maker popups , thanks to @ squatcher bug report .
* @ since 2.5 . 2 Update : Tooltips : ability to display dedicated content before `[[/tooltip]]` , thanks to @ jbj2199 issue report .
* @ since 2.5 . 3 Bugfix : Reference container , tooltips : URL wrap : exclude URL pattern as folder name in Wayback Machine URL , thanks to @ rumperuu bug report .
* @ since 2.5 . 4 Bugfix : Referrers : optional fixes to vertical alignment , font size and position ( static ) for in - theme consistency and cross - theme stability , thanks to @ tomturowski bug report .
* @ since 2.5 . 4 Bugfix : Reference container , tooltips : URL wrap : account for leading space in value , thanks to @ karolszakiel example provision .
* @ since 2.5 . 4 Update : Reference container : Hard backlinks ( optional ) : optional configurable tooltip hinting to use the backbutton instead , thanks to @ theroninjedi47 bug report .
* @ since 2.5 . 4 Bugfix : Tooltips : fix display in Popup Maker popups by correcting a coding error .
* @ since 2.5 . 5 Bugfix : Process : fix numbering bug impacting footnote #2 with footnote #1 close to start, thanks to @rumperuu bug report, thanks to @lolzim code contribution.
* @ since 2.5 . 6 Bugfix : Reference container : optional alternative expanding and collapsing without jQuery for use with hard links , thanks to @ hopper87it @ pkverma99 issue reports .
* @ since 2.5 . 7 Bugfix : Process : fix footnote duplication by emptying the footnotes list every time the search algorithm is run on the content , thanks to @ inoruhana bug report .
*/
// If called directly, abort.
if ( ! defined ( 'ABSPATH' ) ) {
die ;
}
/**
* Searches and replaces the footnotes .
* Generates the reference container .
*
* @ since 1.5 . 0
*/
class MCI_Footnotes_Task {
/**
* Contains all footnotes found on current public page .
*
* @ since 1.5 . 0
* @ var array
*/
public static $a_arr_footnotes = array ();
/**
* Flag if the display of 'LOVE FOOTNOTES' is allowed on the current public page .
*
* @ since 1.5 . 0
* @ var bool
*/
public static $a_bool_allow_love_me = true ;
/**
* Prefix for the Footnote html element ID .
*
* @ since 1.5 . 8
* @ var string
*/
public static $a_str_prefix = '' ;
/**
* Autoload a . k . a . infinite scroll , or archive view .
*
* - Bugfix : Infinite scroll : debug autoload by adding post ID , thanks to @ docteurfitness code contribution
*
* @ since 2.0 . 6
* @ var int
*
* @ contributor @ docteurfitness
* @ link https :// wordpress . org / support / topic / auto - load - post - compatibility - update / #post-13618833
*
* @ reporter @ docteurfitness
* @ link https :// wordpress . org / support / topic / auto - load - post - compatibility - update /
*
* As multiple posts are appended to each other , functions and fragment IDs must be disambiguated .
* post ID to make everything unique wrt infinite scroll and archive view .
*/
public static $a_int_post_id = 0 ;
/**
* Multiple reference containers in content and widgets .
*
* - Bugfix : Reference container , widget_text hook : support for multiple containers in a page , thanks to @ justbecuz bug report .
*
* @ since 2.2 . 9
* @ date 2020 - 12 - 25 T0338 + 0100
*
* @ reporter @ justbecuz
* @ link https :// wordpress . org / support / topic / reset - footnotes - to - 1 /
* @ link https :// wordpress . org / support / topic / reset - footnotes - to - 1 / #post-13662830
*
* @ var int 1 ; incremented every time after a reference container is inserted
*
* This ID disambiguates multiple reference containers in a page
* as they may occur when the widget_text hook is active and the page
* is built with Elementor and has an accordion or similar toggle sections .
*/
public static $a_int_reference_container_id = 1 ;
/**
* Whether tooltips are enabled . Actual value depends on settings .
*
* - Bugfix : Templates : optimize template load and processing based on settings , thanks to @ misfist code contribution .
*
* @ since 2.4 . 0
* @ date 2021 - 01 - 04 T1355 + 0100
*
* @ contributor Patrizia Lutz @ misfist
* @ link https :// wordpress . org / support / topic / template - override - filter / #post-13864301
* @ link https :// github . com / misfist / footnotes / releases / tag / 2.4 . 0 d3 repository
* @ link https :// github . com / misfist / footnotes / compare / 2.4 . 0 % E2 % 80 % A62 . 4.0 d3 diff
*
* @ var bool
*
* Template process and script / stylesheet load optimization .
* Streamline process depending on tooltip enabled status .
* Load tooltip inline script only if jQuery tooltips are enabled .
*/
public static $a_bool_tooltips_enabled = false ;
/**
* Whether alternative tooltips are enabled . Actual value depends on settings .
*
* @ since 2.4 . 0
*
* @ var bool
*/
public static $a_bool_alternative_tooltips_enabled = false ;
/**
* Hard links for AMP compatibility
*
* @ since 2.0 . 0 Bugfix : footnote links script independent .
*
*
* - Bugfix : Referrers and backlinks : remove hard links to streamline browsing history , thanks to @ theroninjedi47 bug report .
*
* @ since 2.0 . 4
*
* @ reporter @ theroninjedi47
* @ link https :// wordpress . org / support / topic / hyperlinked - footnotes - creating - excessive - back - history /
*
*
* - Adding : Referrers and backlinks : optional hard links for AMP compatibility , thanks to @ psykonevro bug report , thanks to @ martinneumannat code contribution .
*
* @ since 2.3 . 0
* @ var bool | str | int
*
* @ contributor @ martinneumannat
* @ link https :// wordpress . org / support / topic / making - it - amp - compatible /
*
* @ reporter @ psykonevro
* @ link https :// wordpress . org / support / topic / footnotes - is - not - amp - compatible /
*
* The official AMP plugin strips off JavaScript , breaking Footnotes’
* animated scrolling .
* When the alternative reference container is enabled , hard links are too .
*
* Used both in search () and reference_container (), these need to be class variables .
*/
/**
* Whether hard links are enabled .
*
* @ since 2.3 . 0
* @ var bool
*/
public static $a_bool_hard_links_enable = false ;
/**
* The referrer slug .
*
* @ since 2.3 . 0
* @ var str
*/
public static $a_str_referrer_link_slug = 'r' ;
/**
* The footnote slug .
*
* @ since 2.3 . 0
* @ var str
*/
public static $a_str_footnote_link_slug = 'f' ;
/**
* The slug and identifier separator .
*
* @ since 2.3 . 0
* @ var str
*/
private static $a_str_link_ids_separator = '+' ;
/**
* Contains the concatenated link .
*
* @ since 2.3 . 0
* @ var str
*/
public static $a_str_post_container_id_compound = '' ;
/**
* Scroll offset .
*
* - Bugfix : Scroll offset : make configurable to fix site - dependent issues related to fixed headers .
*
* @ since 2.1 . 4
* @ date 2020 - 12 - 05 T0538 + 0100
*
*
* - Bugfix : Scroll offset : initialize to safer one third window height for more robustness , thanks to @ lukashuggenberg bug report .
*
* @ since 2.4 . 0
* @ date 2021 - 01 - 03 T2055 + 0100
* @ date 2021 - 01 - 04 T0504 + 0100
*
* @ reporter @ lukashuggenberg
* @ link https :// wordpress . org / support / topic / 2 - 2 - 6 - breaks - all - footnotes / #post-13857922
*
* @ var int
*
* Websites may use high fixed headers not contracting at scroll .
* Scroll offset may now need to get into inline CSS .
* Hence it needs to be loaded twice , because priority levels may not match .
*/
public static $a_int_scroll_offset = 34 ;
/**
* Optional link element for footnote referrers and backlinks
*
* @ since 2.0 . 0 add link elements along with hard links .
*
* - Bugfix : Referrers and backlinks : Styling : make link elements optional to fix issues , thanks to @ docteurfitness issue report and code contribution .
*
* @ since 2.1 . 4
* @ date 2020 - 11 - 25 T1306 + 0100
* @ date 2020 - 11 - 26 T1051 + 0100
*
* @ contributor @ docteurfitness
* @ link https :// wordpress . org / support / topic / update - 2 - 1 - 3 / #post-13704194
*
* @ reporter @ docteurfitness
* @ link https :// wordpress . org / support / topic / update - 2 - 1 - 3 /
*
* - Adding : Referrers and backlinks : optional hard links for AMP compatibility , thanks to @ psykonevro bug report , thanks to @ martinneumannat code contribution .
*
* @ since 2.3 . 0
* @ date 2020 - 12 - 30 T2313 + 0100
*
* @ contributor @ martinneumannat
* @ link https :// wordpress . org / support / topic / making - it - amp - compatible /
*
* @ reporter @ psykonevro
* @ link https :// wordpress . org / support / topic / footnotes - is - not - amp - compatible /
*
* Although widely used for that purpose , hyperlinks are disliked for footnote linking .
* Browsers may need to be prevented from logging these clicks in the browsing history ,
* as logging compromises the usability of the 'return to previous' button in browsers .
* For that purpose , and for scroll animation , this linking is performed by JavaScript .
*
* Link elements raise concerns , so that mitigating their proliferation may be desired .
*
* By contrast , due to an insufficiency in the CSS standard , coloring elements with the
* theme’ link color requires real link elements and cannot be done with named colors ,
* as CSS does not support 'color: link|hover|active|visited' , after the pseudo - classes
* of the link element .
*
* Yet styling these elements with the link color is not universally preferred , so that
* the very presence of these link elements may need to be avoided .
*
* @ see self :: $a_bool_hard_links_enable
*
* Used both in search () and reference_container (), these need to be class variables .
*/
/**
* The span element name .
*
* @ since 2.3 . 0
* @ var str
*/
public static $a_str_link_span = 'span' ;
/**
* The opening tag .
*
* @ since 2.3 . 0
* @ var str
*/
public static $a_str_link_open_tag = '' ;
/**
* The closing tag .
*
* @ since 2.3 . 0
* @ var str
*/
public static $a_str_link_close_tag = '' ;
/**
* Dedicated tooltip text .
*
* - Update : Tooltips : ability to display dedicated content before `[[/tooltip]]` , thanks to @ jbj2199 issue report .
*
* @ since 2.5 . 2
* @ date 2021 - 01 - 19 T2223 + 0100
*
* @ reporter @ jbj2199
* @ link https :// wordpress . org / support / topic / change - tooltip - text /
*
* Tooltips can display another content than the footnote entry
* in the reference container . The trigger is a shortcode in
* the footnote text separating the tooltip text from the note .
* That is consistent with what WordPress does for excerpts .
*/
/**
* The tooltip delimiter shortcode .
*
* @ since 2.5 . 2
* @ var str
*/
public static $a_str_tooltip_shortcode = '[[/tooltip]]' ;
/**
* The tooltip delimiter shortcode length .
*
* @ since 2.5 . 2
* @ var int
*/
public static $a_int_tooltip_shortcode_length = 12 ;
/**
* Whether to mirror the tooltip text in the reference container .
*
* @ since 2.5 . 2
* @ var bool
*/
public static $a_bool_mirror_tooltip_text = false ;
/**
* Footnote delimiter syntax validation .
*
* - Adding : Footnote delimiters : syntax validation for balanced footnote start and end tag short codes .
*
* @ since 2.4 . 0
* @ date 2021 - 01 - 01 T0227 + 0100
*
* @ var bool
*
* The algorithm first checks for balanced footnote opening and closing tag short codes .
* The first encountered error triggers the display of a warning below the post title .
*
* Unbalanced short codes have caused significant trouble because they are hard to detect .
* Any compiler or other tool reports syntax errors in the first place . Footnotes’ exception
* is considered a design flaw , and the feature is released as a bug fix after overdue 2.3 . 0
* released in urgency to provide AMP compat before 2021.
*/
public static $a_bool_syntax_error_flag = true ;
/**
* Register WordPress Hooks to replace Footnotes in the content of a public page .
*
* @ since 1.5 . 0
*
* @ since 1.5 . 4 Adding : Hooks : support 'the_post' in response to user request for custom post types .
* @ since 2.0 . 5 Bugfix : Reference container : fix relative position through priority level , thanks to @ june01 @ imeson @ spaceling bug reports , thanks to @ spaceling code contribution .
* @ since 2.0 . 5 Update : Hooks : Default - enable all hooks to prevent footnotes from seeming broken in some parts .
* @ since 2.0 . 6 Bugfix : Priority level back to PHP_INT_MAX ( ref container positioning not this plugin’ responsibility ) .
* @ since 2.0 . 7 BUGFIX : Hooks : Default - disable 'the_post' , thanks to @ spaceling @ markcheret @ nyamachi @ whichgodsaves @ spiralofhope2 @ mmallett @ andreasra @ widecast @ ymorin007 @ tashi1es bug reports .
* @ since 2.0 . 7 Bugfix : Set priority level back to 10 assuming it is unproblematic 2020 - 11 - 06 T1344 + 0100.
* @ since 2.0 . 8 Bugfix : Priority level back to PHP_INT_MAX ( need to get in touch with other plugins ) .
* @ since 2.1 . 0 UPDATE : Hooks : remove 'the_post' , the plugin stops supporting this hook .
* @ since 2.1 . 1 Bugfix : Dashboard : priority level setting for the_content hook , thanks to @ imeson bug report .
* @ since 2.1 . 2 Bugfix : Dashboard : priority level settings for all other hooks , thanks to @ nikelaos bug report .
* @ since 2.5 . 0 Bugfix : Hooks : support footnotes on category pages , thanks to @ vitaefit bug report , thanks to @ misfist code contribution .
* @ since 2.5 . 1 Bugfix : Hooks : support footnotes in Popup Maker popups , thanks to @ squatcher bug report .
*/
public function register_hooks () {
/**
* Priority levels .
*
* - Bugfix : Reference container : fix relative position through priority level , thanks to @ june01 @ imeson @ spaceling bug reports , thanks to @ spaceling code contribution .
*
* @ since 2.0 . 5
* @ date 2020 - 11 - 02 T0330 + 0100
* @ link https :// codex . wordpress . org / Plugin_API / #Hook_in_your_Filter
*
* @ contributor @ spaceling
* @ link https :// wordpress . org / support / topic / change - the - position - 5 / #post-13608594
*
* @ reporter @ june01
* @ link https :// wordpress . org / support / topic / change - the - position - 5 /
*
* @ reporter @ imeson
* @ link https :// wordpress . org / support / topic / change - the - position - 5 / #post-13538345
*
*
* - Bugfix : Dashboard : priority level setting for the_content hook , thanks to @ imeson bug report .
*
* @ since 2.1 . 1
* @ date 2020 - 11 - 17 T0254 + 0100
*
* @ reporter @ imeson
* @ link https :// wordpress . org / support / topic / change - the - position - 5 / #post-13538345
*
*
* - Bugfix : Dashboard : priority level settings for all other hooks , thanks to @ nikelaos bug report .
*
* @ since 2.1 . 2
* @ date 2020 - 11 - 19 T1849 + 0100
*
* @ reporter @ nikelaos
* @ link https :// wordpress . org / support / topic / doesnt - work - any - more - 11 / #post-13676705
*
*
* Setting the_content priority to 10 instead of PHP_INT_MAX i . e . 9223372036854775807
* makes the footnotes reference container display beneath the post and above other
* features added by other plugins , e . g . related post lists and social buttons .
*
* For YARPP to display related posts below the Footnotes reference container ,
* priority needs to be at least 1200 ( i . e . 0 =< $l_int_the_content_priority =< 1200 ) .
*
* PHP_INT_MAX cannot be reset by leaving the number box empty . because browsers
* ( WebKit ) don’ allow it , so we must resort to - 1.
* @ link https :// github . com / Modernizr / Modernizr / issues / 171
*/
// Get values from settings.
$l_int_the_title_priority = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_EXPERT_LOOKUP_THE_TITLE_PRIORITY_LEVEL ) );
$l_int_the_content_priority = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_EXPERT_LOOKUP_THE_CONTENT_PRIORITY_LEVEL ) );
$l_int_the_excerpt_priority = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_EXPERT_LOOKUP_THE_EXCERPT_PRIORITY_LEVEL ) );
$l_int_widget_title_priority = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_EXPERT_LOOKUP_WIDGET_TITLE_PRIORITY_LEVEL ) );
$l_int_widget_text_priority = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_EXPERT_LOOKUP_WIDGET_TEXT_PRIORITY_LEVEL ) );
// PHP_INT_MAX can be set by -1.
$l_int_the_title_priority = ( - 1 === $l_int_the_title_priority ) ? PHP_INT_MAX : $l_int_the_title_priority ;
$l_int_the_content_priority = ( - 1 === $l_int_the_content_priority ) ? PHP_INT_MAX : $l_int_the_content_priority ;
$l_int_the_excerpt_priority = ( - 1 === $l_int_the_excerpt_priority ) ? PHP_INT_MAX : $l_int_the_excerpt_priority ;
$l_int_widget_title_priority = ( - 1 === $l_int_widget_title_priority ) ? PHP_INT_MAX : $l_int_widget_title_priority ;
$l_int_widget_text_priority = ( - 1 === $l_int_widget_text_priority ) ? PHP_INT_MAX : $l_int_widget_text_priority ;
// Append custom css to the header.
add_filter ( 'wp_head' , array ( $this , 'wp_head' ), PHP_INT_MAX );
// Append the love and share me slug to the footer.
add_filter ( 'wp_footer' , array ( $this , 'wp_footer' ), PHP_INT_MAX );
if ( MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_EXPERT_LOOKUP_THE_TITLE ) ) ) {
add_filter ( 'the_title' , array ( $this , 'the_title' ), $l_int_the_title_priority );
}
// Configurable priority level for reference container relative positioning; default 98.
if ( MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_EXPERT_LOOKUP_THE_CONTENT ) ) ) {
add_filter ( 'the_content' , array ( $this , 'the_content' ), $l_int_the_content_priority );
/**
* Hook for category pages .
*
* - Bugfix : Hooks : support footnotes on category pages , thanks to @ vitaefit bug report , thanks to @ misfist code contribution .
*
* @ since 2.5 . 0
* @ date 2021 - 01 - 05 T1402 + 0100
*
* @ contributor @ misfist
* @ link https :// wordpress . org / support / topic / footnote - doesntwork - on - category - page / #post-13864859
*
* @ reporter @ vitaefit
* @ link https :// wordpress . org / support / topic / footnote - doesntwork - on - category - page /
*
* Category pages can have rich HTML content in a term description with article status .
* For this to happen , WordPress’ built - in partial HTML blocker needs to be disabled .
* @ link https :// docs . woocommerce . com / document / allow - html - in - term - category - tag - descriptions /
*/
add_filter ( 'term_description' , array ( $this , 'the_content' ), $l_int_the_content_priority );
/**
* Hook for popup maker popups .
*
* - Bugfix : Hooks : support footnotes in Popup Maker popups , thanks to @ squatcher bug report .
*
* @ since 2.5 . 1
* @ date 2021 - 01 - 18 T2038 + 0100
*
* @ reporter @ squatcher
* @ link https :// wordpress . org / support / topic / footnotes - use - in - popup - maker /
*/
add_filter ( 'pum_popup_content' , array ( $this , 'the_content' ), $l_int_the_content_priority );
}
if ( MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_EXPERT_LOOKUP_THE_EXCERPT ) ) ) {
add_filter ( 'the_excerpt' , array ( $this , 'the_excerpt' ), $l_int_the_excerpt_priority );
}
if ( MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_EXPERT_LOOKUP_WIDGET_TITLE ) ) ) {
add_filter ( 'widget_title' , array ( $this , 'widget_title' ), $l_int_widget_title_priority );
}
if ( MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_EXPERT_LOOKUP_WIDGET_TEXT ) ) ) {
add_filter ( 'widget_text' , array ( $this , 'widget_text' ), $l_int_widget_text_priority );
}
/**
* The the_post hook .
*
* - Adding : Hooks : support 'the_post' in response to user request for custom post types .
*
* @ since 1.5 . 4
* @ accountable @ aricura
* @ link https :// wordpress . org / support / topic / doesnt - work - in - custon - post - types / #post-5339110
*
*
* - Update : Hooks : Default - enable all hooks to prevent footnotes from seeming broken in some parts .
*
* @ since 2.0 . 5
* @ accountable @ pewgeuges
*
*
* - BUGFIX : Hooks : Default - disable 'the_post' , thanks to @ spaceling @ markcheret @ nyamachi @ whichgodsaves @ spiralofhope2 @ mmallett @ andreasra @ widecast @ ymorin007 @ tashi1es bug reports .
*
* @ since 2.0 . 7
* @ accountable @ pewgeuges
* @ link https :// wordpress . org / support / topic / change - the - position - 5 / page / 2 / #post-13630114
* @ link https :// wordpress . org / support / topic / footnotes - appearing - in - header / #post-13630303
* @ link https :// wordpress . org / support / topic / footnotes - appearing - in - header / page / 2 / #post-13630799
* @ link https :// wordpress . org / support / topic / no - footnotes - anymore / #post-13813233
*
* @ reporter @ spaceling
* @ link https :// wordpress . org / support / topic / change - the - position - 5 / #post-13612697
*
* @ reporter @ markcheret on behalf of W . Beinert
* @ link https :// wordpress . org / support / topic / footnotes - now - appear - in - summaries - even - though - this - is - marked - no /
*
* @ reporter @ nyamachi
* @ link https :// wordpress . org / support / topic / footnotes - appearing - in - header /
*
* @ reporter @ whichgodsaves
* @ link https :// wordpress . org / support / topic / footnotes - appearing - in - header / #post-13622694
*
* @ reporter @ spiralofhope2
* @ link https :// wordpress . org / support / topic / 2 - 0 - 5 - broken /
*
* @ reporter @ mmallett
* @ link https :// wordpress . org / support / topic / 2 - 0 - 5 - broken / #post-13623208
*
* @ reporter @ andreasra
* @ link https :// wordpress . org / support / topic / footnotes - appearing - in - header / #post-13624091
*
* @ reporter @ widecast
* @ link https :// wordpress . org / support / topic / 2 - 0 - 5 - broken / #post-13626222
*
* @ reporter @ ymorin007
* @ link https :// wordpress . org / support / topic / footnotes - appearing - in - header / #post-13627050
*
* @ reporter @ markcheret on behalf of L . Smith
* @ link https :// wordpress . org / support / topic / footnotes - appear - in - random - places - on - academic - website /
*
* @ reporter @ tashi1es
* @ link https :// wordpress . org / support / topic / footnotes - appear - in - random - places - on - academic - website / #post-13630495
*
*
* - UPDATE : Hooks : remove 'the_post' , the plugin stops supporting this hook .
*
* @ since 2.1 . 0
* @ date 2020 - 11 - 08 T1839 + 0100
* @ accountable @ pewgeuges
*/
// Reset stored footnotes when displaying the header.
self :: $a_arr_footnotes = array ();
self :: $a_bool_allow_love_me = true ;
}
/**
* Outputs the custom css to the header of the public page .
*
* @ since 1.5 . 0
*
* @ since 2.1 . 1 Bugfix : Reference container : fix start pages by making its display optional , thanks to @ dragon013 bug report .
* @ since 2.1 . 1 Bugfix : Tooltips : optional alternative JS implementation with CSS transitions to fix configuration - related outage , thanks to @ andreasra feedback .
* @ since 2.1 . 3 raise settings priority to override theme stylesheets
* @ since 2.1 . 4 Bugfix : Tooltips : Styling : fix font size issue by adding font size to settings with legacy as default .
* @ since 2.1 . 4 Bugfix : Reference container : fix layout issues by moving backlink column width to settings .
* @ since 2.2 . 5 Bugfix : Reference container : Label : make bottom border an option , thanks to @ markhillyer issue report .
* @ since 2.2 . 5 Bugfix : Reference container : Label : option to select paragraph or heading element , thanks to @ markhillyer issue report .
* @ since 2.3 . 0 Bugfix : Reference container : convert top padding to margin and make it a setting , thanks to @ hamshe bug report .
* @ since 2.5 . 4 Bugfix : Referrers : optional fixes to vertical alignment , font size and position ( static ) for in - theme consistency and cross - theme stability , thanks to @ tomturowski bug report .
*/
public function wp_head () {
// Insert start tag without switching out of PHP.
echo " \r \n <style type= \" text/css \" media= \" all \" > \r \n " ;
/**
* Normalizes the referrers’ vertical alignment and font size .
*
* - Bugfix : Referrers : optional fixes to vertical alignment , font size and position ( static ) for in - theme consistency and cross - theme stability , thanks to @ tomturowski bug report .
*
* @ since 2.5 . 4
* @ date 2021 - 02 - 12 T1631 + 0100
*
* @ reporter @ tomturowski
* @ link https :// wordpress . org / support / topic / in - line - superscript - ref - rides - to - high /
*
* Cannot be included in external stylesheet , as it is only optional .
* The scope is variable too : referrers only , or all superscript elements .
*/
$l_str_normalize_superscript = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTE_REFERRERS_NORMAL_SUPERSCRIPT );
if ( 'no' !== $l_str_normalize_superscript ) {
if ( 'all' === $l_str_normalize_superscript ) {
echo 'sup {' ;
} else {
echo '.footnote_plugin_tooltip_text {' ;
}
echo " vertical-align: super; font-size: smaller; position: static;} \r \n " ;
}
/**
* Reference container display on home page .
*
* - Bugfix : Reference container : fix start pages by making its display optional , thanks to @ dragon013 bug report .
*
* @ since 2.1 . 1
*
* @ reporter @ dragon013
* @ link https :// wordpress . org / support / topic / possible - to - hide - it - from - start - page /
*/
if ( ! MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_REFERENCE_CONTAINER_START_PAGE_ENABLE ) ) ) {
echo " .home .footnotes_reference_container { display: none; } \r \n " ;
}
/**
* Reference container top and bottom margins .
*
* - Bugfix : Reference container : convert top padding to margin and make it a setting , thanks to @ hamshe bug report .
*
* @ since 2.3 . 0
*
* @ reporter @ hamshe
* @ link https :// wordpress . org / support / topic / reference - container - in - elementor / #post-13786635
*/
$l_int_reference_container_top_margin = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_REFERENCE_CONTAINER_TOP_MARGIN ) );
$l_int_reference_container_bottom_margin = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_REFERENCE_CONTAINER_BOTTOM_MARGIN ) );
echo '.footnotes_reference_container {margin-top: ' ;
echo empty ( $l_int_reference_container_top_margin ) ? '0' : $l_int_reference_container_top_margin ;
echo 'px !important; margin-bottom: ' ;
echo empty ( $l_int_reference_container_bottom_margin ) ? '0' : $l_int_reference_container_bottom_margin ;
echo " px !important;} \r \n " ;
/**
* Reference container label bottom border .
*
* - Bugfix : Reference container : Label : make bottom border an option , thanks to @ markhillyer issue report .
* - Bugfix : Reference container : Label : option to select paragraph or heading element , thanks to @ markhillyer issue report .
*
* @ since 2.2 . 5
* @ date 2020 - 12 - 18 T1447 + 0100
*
* @ reporter @ markhillyer
* @ link https :// wordpress . org / support / topic / how - do - i - eliminate - the - horizontal - line - beneath - the - reference - container - heading /
*/
if ( MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_REFERENCE_CONTAINER_LABEL_BOTTOM_BORDER ) ) ) {
echo '.footnote_container_prepare > ' ;
echo MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_REFERENCE_CONTAINER_LABEL_ELEMENT );
echo " { border-bottom: 1px solid #aaaaaa !important;} \r \n " ;
}
/**
* Reference container table row borders .
*
* - Bugfix : Reference container : add option for table borders to restore pre - 2.0 . 0 design , thanks to @ noobishh issue report .
*
* @ since 2.2 . 10
* @ date 2020 - 12 - 25 T2304 + 0100
*
* @ reporter @ noobishh
* @ link https :// wordpress . org / support / topic / borders - 25 /
*
* TODO : use `wp_add_inline_style()` or something like that instead .
*/
if ( MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_REFERENCE_CONTAINER_ROW_BORDERS_ENABLE ) ) ) {
echo '.footnotes_table, .footnotes_plugin_reference_row {' ;
echo 'border: 1px solid #060606;' ;
echo " !important;} \r \n " ;
// Adapt left padding to the presence of a border.
echo '.footnote_plugin_index, .footnote_plugin_index_combi {' ;
echo " padding-left: 6px !important} \r \n " ;
}
// Ref container first column width and max-width.
$l_bool_column_width_enabled = MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_BACKLINKS_COLUMN_WIDTH_ENABLED ) );
$l_bool_column_max_width_enabled = MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_BACKLINKS_COLUMN_MAX_WIDTH_ENABLED ) );
if ( $l_bool_column_width_enabled || $l_bool_column_max_width_enabled ) {
echo '.footnote-reference-container { table-layout: fixed; }' ;
echo '.footnote_plugin_index, .footnote_plugin_index_combi {' ;
if ( $l_bool_column_width_enabled ) {
$l_int_column_width_scalar = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_BACKLINKS_COLUMN_WIDTH_SCALAR );
$l_str_column_width_unit = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_BACKLINKS_COLUMN_WIDTH_UNIT );
if ( ! empty ( $l_int_column_width_scalar ) ) {
if ( '%' === $l_str_column_width_unit ) {
if ( $l_int_column_width_scalar > 100 ) {
$l_int_column_width_scalar = 100 ;
}
}
} else {
$l_int_column_width_scalar = 0 ;
}
echo ' width: ' . $l_int_column_width_scalar . $l_str_column_width_unit . ' !important;' ;
}
if ( $l_bool_column_max_width_enabled ) {
$l_int_column_max_width_scalar = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_BACKLINKS_COLUMN_MAX_WIDTH_SCALAR );
$l_str_column_max_width_unit = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_BACKLINKS_COLUMN_MAX_WIDTH_UNIT );
if ( ! empty ( $l_int_column_max_width_scalar ) ) {
if ( '%' === $l_str_column_max_width_unit ) {
if ( $l_int_column_max_width_scalar > 100 ) {
$l_int_column_max_width_scalar = 100 ;
}
}
} else {
$l_int_column_max_width_scalar = 0 ;
}
echo ' max-width: ' . $l_int_column_max_width_scalar . $l_str_column_max_width_unit . ' !important;' ;
}
echo " } \r \n " ;
}
/**
* Hard links scroll offset .
*
* - Bugfix : Scroll offset : make configurable to fix site - dependent issues related to fixed headers .
*
* @ since 2.1 . 4
*
* @ since 2.5 . 6 hard links are always enabled when the alternative reference container is .
*/
self :: $a_bool_hard_links_enable = MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_HARD_LINKS_ENABLE ) );
// Correct hard links enabled status depending on alternative reference container enabled status.
$l_str_script_mode = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_REFERENCE_CONTAINER_SCRIPT_MODE );
if ( 'jquery' !== $l_str_script_mode ) {
self :: $a_bool_hard_links_enable = true ;
}
self :: $a_int_scroll_offset = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_FOOTNOTES_SCROLL_OFFSET ) );
if ( self :: $a_bool_hard_links_enable ) {
echo '.footnote_referrer_anchor, .footnote_item_anchor {bottom: ' ;
echo self :: $a_int_scroll_offset ;
echo " vh;} \r \n " ;
}
/*
* Tooltips .
*/
self :: $a_bool_tooltips_enabled = MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_MOUSE_OVER_BOX_ENABLED ) );
self :: $a_bool_alternative_tooltips_enabled = MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_MOUSE_OVER_BOX_ALTERNATIVE ) );
if ( self :: $a_bool_tooltips_enabled ) {
echo '.footnote_tooltip {' ;
/**
* Tooltip appearance : Tooltip font size .
*
* - Bugfix : Styling : Tooltips : fix font size issue by adding font size to settings with legacy as default .
*
* @ since 2.1 . 4
* @ date 2020 - 12 - 03 T0954 + 0100
*/
echo ' font-size: ' ;
if ( MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_MOUSE_OVER_BOX_FONT_SIZE_ENABLED ) ) ) {
echo MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_FLO_MOUSE_OVER_BOX_FONT_SIZE_SCALAR );
echo MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_MOUSE_OVER_BOX_FONT_SIZE_UNIT );
} else {
echo 'inherit' ;
}
echo ' !important;' ;
/*
* Tooltip Text color .
*/
$l_str_color = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_MOUSE_OVER_BOX_COLOR );
if ( ! empty ( $l_str_color ) ) {
printf ( ' color: %s !important;' , $l_str_color );
}
/*
* Tooltip Background color .
*/
$l_str_background = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_MOUSE_OVER_BOX_BACKGROUND );
if ( ! empty ( $l_str_background ) ) {
printf ( ' background-color: %s !important;' , $l_str_background );
}
/*
* Tooltip Border width .
*/
$l_int_border_width = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_FOOTNOTES_MOUSE_OVER_BOX_BORDER_WIDTH );
if ( ! empty ( $l_int_border_width ) && intval ( $l_int_border_width ) > 0 ) {
printf ( ' border-width: %dpx !important; border-style: solid !important;' , $l_int_border_width );
}
/*
* Tooltip Border color .
*/
$l_str_border_color = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_MOUSE_OVER_BOX_BORDER_COLOR );
if ( ! empty ( $l_str_border_color ) ) {
printf ( ' border-color: %s !important;' , $l_str_border_color );
}
/*
* Tooltip Corner radius .
*/
$l_int_border_radius = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_FOOTNOTES_MOUSE_OVER_BOX_BORDER_RADIUS );
if ( ! empty ( $l_int_border_radius ) && intval ( $l_int_border_radius ) > 0 ) {
printf ( ' border-radius: %dpx !important;' , $l_int_border_radius );
}
/*
* Tooltip Shadow color .
*/
$l_str_box_shadow_color = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_MOUSE_OVER_BOX_SHADOW_COLOR );
if ( ! empty ( $l_str_box_shadow_color ) ) {
printf ( ' -webkit-box-shadow: 2px 2px 11px %s;' , $l_str_box_shadow_color );
printf ( ' -moz-box-shadow: 2px 2px 11px %s;' , $l_str_box_shadow_color );
printf ( ' box-shadow: 2px 2px 11px %s;' , $l_str_box_shadow_color );
}
/**
* Tooltip position and timing .
*
* - Bugfix : Tooltips : make display delays and fade durations configurable to conform to website style .
*
* @ since 2.1 . 4
* @ date 2020 - 12 - 06 T1320 + 0100
*
*
* - Update : Tooltips : Alternative tooltips : connect to position / timing settings ( for themes not supporting jQuery tooltips ) .
*
* @ since 2.2 . 5
* @ date 2020 - 12 - 18 T1113 + 0100
*/
if ( ! self :: $a_bool_alternative_tooltips_enabled ) {
/*
* jQuery tooltips .
*/
$l_int_max_width = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_FOOTNOTES_MOUSE_OVER_BOX_MAX_WIDTH );
if ( ! empty ( $l_int_max_width ) && intval ( $l_int_max_width ) > 0 ) {
printf ( ' max-width: %dpx !important;' , $l_int_max_width );
}
echo " } \r \n " ;
} else {
/*
* Alternative tooltips .
*/
echo " } \r \n " ;
// Dimensions.
$l_int_alternative_tooltip_width = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_FOOTNOTES_ALTERNATIVE_MOUSE_OVER_BOX_WIDTH ) );
echo '.footnote_tooltip.position {' ;
echo ' width: ' . $l_int_alternative_tooltip_width . 'px;' ;
// Set also as max-width wrt short tooltip shrinking.
echo ' max-width: ' . $l_int_alternative_tooltip_width . 'px;' ;
// Position.
$l_str_alternative_position = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_ALTERNATIVE_MOUSE_OVER_BOX_POSITION );
$l_int_offset_x = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_FOOTNOTES_ALTERNATIVE_MOUSE_OVER_BOX_OFFSET_X ) );
if ( 'top left' === $l_str_alternative_position || 'bottom left' === $l_str_alternative_position ) {
echo ' right: ' . ( ! empty ( $l_int_offset_x ) ? $l_int_offset_x : 0 ) . 'px;' ;
} else {
echo ' left: ' . ( ! empty ( $l_int_offset_x ) ? $l_int_offset_x : 0 ) . 'px;' ;
}
$l_int_offset_y = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_FOOTNOTES_ALTERNATIVE_MOUSE_OVER_BOX_OFFSET_Y ) );
if ( 'top left' === $l_str_alternative_position || 'top right' === $l_str_alternative_position ) {
echo ' bottom: ' . ( ! empty ( $l_int_offset_y ) ? $l_int_offset_y : 0 ) . 'px;' ;
} else {
echo ' top: ' . ( ! empty ( $l_int_offset_y ) ? $l_int_offset_y : 0 ) . 'px;' ;
}
echo " } \r \n " ;
/**
* Alternative tooltip timing .
*
* For jQuery tooltip timing @ see templates / public / tooltip . html .
*/
echo ' .footnote_tooltip.shown {' ;
$l_int_fade_in_delay = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_MOUSE_OVER_BOX_FADE_IN_DELAY ) );
$l_int_fade_in_duration = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_MOUSE_OVER_BOX_FADE_IN_DURATION ) );
$l_int_fade_in_delay = ! empty ( $l_int_fade_in_delay ) ? $l_int_fade_in_delay : '0' ;
$l_int_fade_in_duration = ! empty ( $l_int_fade_in_duration ) ? $l_int_fade_in_duration : '0' ;
echo ' transition-delay: ' . $l_int_fade_in_delay . 'ms;' ;
echo ' transition-duration: ' . $l_int_fade_in_duration . 'ms;' ;
echo '} .footnote_tooltip.hidden {' ;
$l_int_fade_out_delay = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_MOUSE_OVER_BOX_FADE_OUT_DELAY ) );
$l_int_fade_out_duration = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_MOUSE_OVER_BOX_FADE_OUT_DURATION ) );
$l_int_fade_out_delay = ! empty ( $l_int_fade_out_delay ) ? $l_int_fade_out_delay : '0' ;
$l_int_fade_out_duration = ! empty ( $l_int_fade_out_duration ) ? $l_int_fade_out_duration : '0' ;
echo ' transition-delay: ' . $l_int_fade_out_delay . 'ms;' ;
echo ' transition-duration: ' . $l_int_fade_out_duration . 'ms;' ;
echo " } \r \n " ;
}
}
/**
* Custom CSS .
*
* - Bugfix : Custom CSS : insert new CSS in the public page header element after existing CSS .
*
* @ since 2.2 . 3
* @ date 2020 - 12 - 15 T1128 + 0100
*
* Set custom CSS to override settings , not conversely .
* Legacy Custom CSS is used until it’ set to disappear after dashboard tab migration .
*/
if ( MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_CUSTOM_CSS_LEGACY_ENABLE ) ) ) {
echo MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_CUSTOM_CSS );
echo " \r \n " ;
}
echo MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_CUSTOM_CSS_NEW );
// Insert end tag without switching out of PHP.
echo " \r \n </style> \r \n " ;
/**
* Alternative tooltip implementation relying on plain JS and CSS transitions .
*
* - Bugfix : Tooltips : optional alternative JS implementation with CSS transitions to fix configuration - related outage , thanks to @ andreasra feedback .
*
* @ since 2.1 . 1
*
* @ reporter @ andreasra
* @ link https :// wordpress . org / support / topic / footnotes - appearing - in - header / page / 2 / #post-13632566
*
* The script for alternative tooltips is printed formatted , not minified ,
* for transparency . It isn’ indented though ( the PHP open tag neither ) .
*/
if ( self :: $a_bool_alternative_tooltips_enabled ) {
// Start internal script.
?>
< script content = " text/javascript " >
function footnote_tooltip_show ( footnote_tooltip_id ) {
document . getElementById ( footnote_tooltip_id ) . classList . remove ( 'hidden' );
document . getElementById ( footnote_tooltip_id ) . classList . add ( 'shown' );
}
function footnote_tooltip_hide ( footnote_tooltip_id ) {
document . getElementById ( footnote_tooltip_id ) . classList . remove ( 'shown' );
document . getElementById ( footnote_tooltip_id ) . classList . add ( 'hidden' );
}
</ script >
< ? php
};
}
/**
* Displays the 'LOVE FOOTNOTES' slug if enabled .
*
* @ since 1.5 . 0
*
* @ since 2.2 . 0 more options 2020 - 12 - 11 T0506 + 0100
*/
public function wp_footer () {
if ( 'footer' === MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_REFERENCE_CONTAINER_POSITION ) ) {
echo $this -> reference_container ();
}
// Get setting for love and share this plugin.
$l_str_love_me_index = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_LOVE );
// Check if the admin allows to add a link to the footer.
if ( empty ( $l_str_love_me_index ) || 'no' === strtolower ( $l_str_love_me_index ) || ! self :: $a_bool_allow_love_me ) {
return ;
}
// Set a hyperlink to the word "footnotes" in the Love slug.
$l_str_linked_name = sprintf ( '<a href="https://wordpress.org/plugins/footnotes/" target="_blank" style="text-decoration:none;">%s</a>' , MCI_Footnotes_Config :: C_STR_PLUGIN_PUBLIC_NAME );
// Get random love me text.
if ( 'random' === strtolower ( $l_str_love_me_index ) ) {
$l_str_love_me_index = 'text-' . wp_rand ( 1 , 7 );
}
switch ( $l_str_love_me_index ) {
// Options named wrt backcompat, simplest is default.
case 'text-1' :
/* Translators: 2: Link to plugin page 1: Love heart symbol */
$l_str_love_me_text = sprintf ( __ ( 'I %2$s %1$s' , 'footnotes' ), $l_str_linked_name , MCI_Footnotes_Config :: C_STR_LOVE_SYMBOL );
break ;
case 'text-2' :
/* Translators: %s: Link to plugin page */
$l_str_love_me_text = sprintf ( __ ( 'This website uses the awesome %s plugin.' , 'footnotes' ), $l_str_linked_name );
break ;
case 'text-4' :
/* Translators: 1: Link to plugin page 2: Love heart symbol */
$l_str_love_me_text = sprintf ( '%1$s %2$s' , $l_str_linked_name , MCI_Footnotes_Config :: C_STR_LOVE_SYMBOL );
break ;
case 'text-5' :
/* Translators: 1: Love heart symbol 2: Link to plugin page */
$l_str_love_me_text = sprintf ( '%1$s %2$s' , MCI_Footnotes_Config :: C_STR_LOVE_SYMBOL , $l_str_linked_name );
break ;
case 'text-6' :
/* Translators: %s: Link to plugin page */
$l_str_love_me_text = sprintf ( __ ( 'This website uses %s.' , 'footnotes' ), $l_str_linked_name );
break ;
case 'text-7' :
/* Translators: %s: Link to plugin page */
$l_str_love_me_text = sprintf ( __ ( 'This website uses the %s plugin.' , 'footnotes' ), $l_str_linked_name );
break ;
case 'text-3' :
default :
/* Translators: %s: Link to plugin page */
$l_str_love_me_text = sprintf ( '%s' , $l_str_linked_name );
break ;
}
echo sprintf ( '<div style="text-align:center; color:#acacac;">%s</div>' , $l_str_love_me_text );
}
/**
* Replaces footnotes in the post / page title .
*
* @ since 1.5 . 0
* @ param string $p_str_content Widget content .
* @ return string Content with replaced footnotes .
*/
public function the_title ( $p_str_content ) {
// Appends the reference container if set to "post_end".
return $this -> exec ( $p_str_content , false );
}
/**
* Replaces footnotes in the content of the current page / post .
*
* @ since 1.5 . 0
* @ param string $p_str_content Page / Post content .
* @ return string Content with replaced footnotes .
*/
public function the_content ( $p_str_content ) {
/**
* Empties the footnotes list every time Footnotes is run when the_content hook is called .
*
* - Bugfix : Process : fix footnote duplication by emptying the footnotes list every time the search algorithm is run on the content , thanks to @ inoruhana bug report .
*
* @ since 2.5 . 7
*
* @ reporter @ inoruhana
* @ link https :// wordpress . org / support / topic / footnote - duplicated - in - the - widget /
*
* Under certain circumstances , footnotes were duplicated , because the footnotes list was
* not emptied every time before the search algorithm was run . That happened eg when both
* the reference container resides in the widget area , and the YOAST SEO plugin is active
* and calls the hook the_content to generate the Open Graph description , while Footnotes
* is set to avoid missing out on the footnotes ( in the content ) by hooking in as soon as
* the_content is called , whereas at post end Footnotes seems to hook in the_content only
* the time it’ the blog engine processing the post for display and appending the refs .
*/
self :: $a_arr_footnotes = array ();
// phpcs:disable WordPress.PHP.YodaConditions.NotYoda
// Appends the reference container if set to "post_end".
return $this -> exec ( $p_str_content , 'post_end' === MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_REFERENCE_CONTAINER_POSITION ) );
// phpcs:enable WordPress.PHP.YodaConditions.NotYoda
}
/**
* Replaces footnotes in the excerpt of the current page / post .
*
* @ since 1.5 . 0
* @ param string $p_str_content Page / Post content .
* @ return string Content with replaced footnotes .
*/
public function the_excerpt ( $p_str_content ) {
return $this -> exec ( $p_str_content , false , ! MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_IN_EXCERPT ) ) );
}
/**
* Replaces footnotes in the widget title .
*
* @ since 1.5 . 0
* @ param string $p_str_content Widget content .
* @ return string Content with replaced footnotes .
*/
public function widget_title ( $p_str_content ) {
// Appends the reference container if set to "post_end".
return $this -> exec ( $p_str_content , false );
}
/**
* Replaces footnotes in the content of the current widget .
*
* @ since 1.5 . 0
* @ param string $p_str_content Widget content .
* @ return string Content with replaced footnotes .
*/
public function widget_text ( $p_str_content ) {
// phpcs:disable WordPress.PHP.YodaConditions.NotYoda
// Appends the reference container if set to "post_end".
return $this -> exec ( $p_str_content , 'post_end' === MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_REFERENCE_CONTAINER_POSITION ) ? true : false );
// phpcs:enable WordPress.PHP.YodaConditions.NotYoda
}
/**
* Replaces footnotes in each Content var of the current Post object .
*
* @ since 1.5 . 4
* @ param array | WP_Post $p_mixed_posts The current Post object .
*/
public function the_post ( & $p_mixed_posts ) {
// Single WP_Post object received.
if ( ! is_array ( $p_mixed_posts ) ) {
$p_mixed_posts = $this -> replace_post_object ( $p_mixed_posts );
return ;
}
$num_posts = count ( $p_mixed_posts );
// Array of WP_Post objects received.
for ( $l_int_index = 0 ; $l_int_index < $num_posts ; $l_int_index ++ ) {
$p_mixed_posts [ $l_int_index ] = $this -> replace_post_object ( $p_mixed_posts [ $l_int_index ] );
}
}
/**
* Replace all Footnotes in a WP_Post object .
*
* @ since 1.5 . 6
* @ param WP_Post $p_obj_post The Post object .
* @ return WP_Post
*/
private function replace_post_object ( $p_obj_post ) {
$p_obj_post -> post_content = $this -> exec ( $p_obj_post -> post_content );
$p_obj_post -> post_content_filtered = $this -> exec ( $p_obj_post -> post_content_filtered );
$p_obj_post -> post_excerpt = $this -> exec ( $p_obj_post -> post_excerpt );
return $p_obj_post ;
}
/**
* Replaces all footnotes that occur in the given content .
*
* @ since 1.5 . 0
* @ param string $p_str_content Any string that may contain footnotes to be replaced .
* @ param bool $p_bool_output_references Appends the Reference Container to the output if set to true , default true .
* @ param bool $p_bool_hide_footnotes_text Hide footnotes found in the string .
* @ return string
*
* @ since 2.2 . 0 Adding : Reference container : support for custom position shortcode , thanks to @ hamshe issue report .
* @ since 2.2 . 5 Bugfix : Reference container : delete position shortcode if unused because position may be widget or footer , thanks to @ hamshe bug report .
*/
public function exec ( $p_str_content , $p_bool_output_references = false , $p_bool_hide_footnotes_text = false ) {
// Replace all footnotes in the content, settings are converted to html characters.
$p_str_content = $this -> search ( $p_str_content , true , $p_bool_hide_footnotes_text );
// Replace all footnotes in the content, settings are NOT converted to html characters.
$p_str_content = $this -> search ( $p_str_content , false , $p_bool_hide_footnotes_text );
/**
* Reference container customized positioning through shortcode .
*
* - Adding : Reference container : support for custom position shortcode , thanks to @ hamshe issue report .
*
* @ since 2.2 . 0
* @ date 2020 - 12 - 13 T2057 + 0100
*
* @ reporter @ hamshe
* @ link https :// wordpress . org / support / topic / reference - container - in - elementor /
*
*
* - Bugfix : Reference container : delete position shortcode if unused because position may be widget or footer , thanks to @ hamshe bug report .
*
* @ since 2.2 . 5
* @ date 2020 - 12 - 18 T1434 + 0100
*
* @ reporter @ hamshe
* @ link https :// wordpress . org / support / topic / reference - container - in - elementor / #post-13784126
*/
// Append the reference container or insert at shortcode.
$l_str_reference_container_position_shortcode = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_REFERENCE_CONTAINER_POSITION_SHORTCODE );
if ( empty ( $l_str_reference_container_position_shortcode ) ) {
$l_str_reference_container_position_shortcode = '[[references]]' ;
}
if ( $p_bool_output_references ) {
if ( strpos ( $p_str_content , $l_str_reference_container_position_shortcode ) ) {
$p_str_content = str_replace ( $l_str_reference_container_position_shortcode , $this -> reference_container (), $p_str_content );
} else {
$p_str_content .= $this -> reference_container ();
}
// Increment the container ID.
self :: $a_int_reference_container_id ++ ;
}
// Delete position shortcode should any remain.
$p_str_content = str_replace ( $l_str_reference_container_position_shortcode , '' , $p_str_content );
// Take a look if the LOVE ME slug should NOT be displayed on this page/post, remove the short code if found.
if ( strpos ( $p_str_content , MCI_Footnotes_Config :: C_STR_NO_LOVE_SLUG ) ) {
self :: $a_bool_allow_love_me = false ;
$p_str_content = str_replace ( MCI_Footnotes_Config :: C_STR_NO_LOVE_SLUG , '' , $p_str_content );
}
// Return the content with replaced footnotes and optional reference container appended.
return $p_str_content ;
}
/**
* Replaces all footnotes in the given content and appends them to the static property .
*
* @ since 1.5 . 0
* @ param string $p_str_content Content to be searched for footnotes .
* @ param bool $p_bool_convert_html_chars html encode settings , default true .
* @ param bool $p_bool_hide_footnotes_text Hide footnotes found in the string .
* @ return string
*
* @ since 2.0 . 0 various .
* @ since 2.4 . 0 Adding : Footnote delimiters : syntax validation for balanced footnote start and end tag short codes .
* @ since 2.5 . 0 Bugfix : Footnote delimiters : Syntax validation : exclude certain cases involving scripts , thanks to @ andreasra bug report .
* @ since 2.5 . 0 Bugfix : Footnote delimiters : Syntax validation : complete message with hint about setting , thanks to @ andreasra bug report .
* @ since 2.5 . 0 Bugfix : Footnote delimiters : Syntax validation : limit length of quoted string to 300 characters , thanks to @ andreasra bug report .
*/
public function search ( $p_str_content , $p_bool_convert_html_chars , $p_bool_hide_footnotes_text ) {
// Post ID to make everything unique wrt infinite scroll and archive view.
self :: $a_int_post_id = get_the_id ();
// Contains the index for the next footnote on this page.
$l_int_footnote_index = count ( self :: $a_arr_footnotes ) + 1 ;
// Contains the starting position for the lookup of a footnote.
$l_int_pos_start = 0 ;
// Get start and end tag for the footnotes short code.
$l_str_starting_tag = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_SHORT_CODE_START );
$l_str_ending_tag = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_SHORT_CODE_END );
if ( 'userdefined' === $l_str_starting_tag || 'userdefined' === $l_str_ending_tag ) {
$l_str_starting_tag = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_SHORT_CODE_START_USER_DEFINED );
$l_str_ending_tag = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_SHORT_CODE_END_USER_DEFINED );
}
// Decode html special chars.
if ( $p_bool_convert_html_chars ) {
$l_str_starting_tag = htmlspecialchars ( $l_str_starting_tag );
$l_str_ending_tag = htmlspecialchars ( $l_str_ending_tag );
}
// If footnotes short code is empty, return the content without changes.
if ( empty ( $l_str_starting_tag ) || empty ( $l_str_ending_tag ) ) {
return $p_str_content ;
}
/**
* Footnote delimiter syntax validation .
*
* - Adding : Footnote delimiters : syntax validation for balanced footnote start and end tag short codes .
*
* @ since 2.4 . 0
*
*
* - Bugfix : Footnote delimiters : Syntax validation : exclude certain cases involving scripts , thanks to @ andreasra bug report .
* - Bugfix : Footnote delimiters : Syntax validation : complete message with hint about setting , thanks to @ andreasra bug report .
* - Bugfix : Footnote delimiters : Syntax validation : limit length of quoted string to 300 characters , thanks to @ andreasra bug report .
*
* @ since 2.5 . 0
* @ date 2021 - 01 - 07 T0824 + 0100
*
* @ reporter @ andreasra
* @ link https :// wordpress . org / support / topic / warning - unbalanced - footnote - start - tag - short - code - before /
*
*
* If footnotes short codes are unbalanced , and syntax validation is not disabled ,
* prepend a warning to the content ; displays de facto beneath the post title .
*/
if ( MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTE_SHORTCODE_SYNTAX_VALIDATION_ENABLE ) ) ) {
// Make shortcodes conform to regex syntax.
$l_str_start_tag_regex = preg_replace ( '#([\(\)\{\}\[\]\*\.\?\!])#' , '\\\\$1' , $l_str_starting_tag );
$l_str_end_tag_regex = preg_replace ( '#([\(\)\{\}\[\]\*\.\?\!])#' , '\\\\$1' , $l_str_ending_tag );
// Apply different regex depending on whether start shortcode is double/triple opening parenthesis.
if ( '((' === $l_str_starting_tag || '(((' === $l_str_starting_tag ) {
// This prevents from catching a script containing e.g. a double opening parenthesis.
$l_str_validation_regex = '#' . $l_str_start_tag_regex . '(((?!' . $l_str_end_tag_regex . ')[^\{\}])*?)(' . $l_str_start_tag_regex . '|$)#s' ;
} else {
// Catch all only if the start shortcode is not double/triple opening parenthesis, i.e. is unlikely to occur in scripts.
$l_str_validation_regex = '#' . $l_str_start_tag_regex . '(((?!' . $l_str_end_tag_regex . ').)*?)(' . $l_str_start_tag_regex . '|$)#s' ;
}
// Check syntax and get error locations.
preg_match ( $l_str_validation_regex , $p_str_content , $p_arr_error_location );
if ( empty ( $p_arr_error_location ) ) {
self :: $a_bool_syntax_error_flag = false ;
}
// Prevent generating and inserting the warning multiple times.
if ( self :: $a_bool_syntax_error_flag ) {
// Get plain text string for error location.
$l_str_error_spot_string = wp_strip_all_tags ( $p_arr_error_location [ 1 ] );
// Limit string length to 300 characters.
if ( strlen ( $l_str_error_spot_string ) > 300 ) {
$l_str_error_spot_string = substr ( $l_str_error_spot_string , 0 , 299 ) . '…' ;
}
// Compose warning box.
$l_str_syntax_error_warning = '<div class="footnotes_validation_error"><p>' ;
$l_str_syntax_error_warning .= __ ( 'WARNING: unbalanced footnote start tag short code found.' , 'footnotes' );
$l_str_syntax_error_warning .= '</p><p>' ;
// Syntax validation setting in the dashboard under the General settings tab.
/* Translators: 1: General Settings 2: Footnote start and end short codes 3: Check for balanced shortcodes */
$l_str_syntax_error_warning .= sprintf ( __ ( 'If this warning is irrelevant, please disable the syntax validation feature in the dashboard under %1$s > %2$s > %3$s.' , 'footnotes' ), __ ( 'General settings' , 'footnotes' ), __ ( 'Footnote start and end short codes' , 'footnotes' ), __ ( 'Check for balanced shortcodes' , 'footnotes' ) );
$l_str_syntax_error_warning .= '</p><p>' ;
$l_str_syntax_error_warning .= __ ( 'Unbalanced start tag short code found before:' , 'footnotes' );
$l_str_syntax_error_warning .= '</p><p>“' ;
$l_str_syntax_error_warning .= $l_str_error_spot_string ;
$l_str_syntax_error_warning .= '”</p></div>' ;
// Prepend the warning box to the content.
$p_str_content = $l_str_syntax_error_warning . $p_str_content ;
// Checked, set flag to false to prevent duplicate warning.
self :: $a_bool_syntax_error_flag = false ;
return $p_str_content ;
}
}
// Load referrer templates if footnotes text not hidden.
if ( ! $p_bool_hide_footnotes_text ) {
// Load footnote referrer template file.
if ( self :: $a_bool_alternative_tooltips_enabled ) {
$l_obj_template = new MCI_Footnotes_Template ( MCI_Footnotes_Template :: C_STR_PUBLIC , 'footnote-alternative' );
} else {
$l_obj_template = new MCI_Footnotes_Template ( MCI_Footnotes_Template :: C_STR_PUBLIC , 'footnote' );
}
/**
* Call Boolean again for robustness when priority levels don’ match any longer .
*
* - Bugfix : Tooltips : fix display in Popup Maker popups by correcting a coding error .
*
* @ since 2.5 . 4
* @ see self :: add_filter ( 'pum_popup_content' , array ( $this , " the_content " ), $l_int_the_content_priority )
*/
self :: $a_bool_tooltips_enabled = MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_MOUSE_OVER_BOX_ENABLED ) );
self :: $a_bool_alternative_tooltips_enabled = MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_MOUSE_OVER_BOX_ALTERNATIVE ) );
// Load tooltip inline script if jQuery tooltips are enabled.
if ( self :: $a_bool_tooltips_enabled && ! self :: $a_bool_alternative_tooltips_enabled ) {
$l_obj_template_tooltip = new MCI_Footnotes_Template ( MCI_Footnotes_Template :: C_STR_PUBLIC , 'tooltip' );
}
} else {
$l_obj_template = null ;
$l_obj_template_tooltip = null ;
}
// Search footnotes short codes in the content.
do {
// Get first occurrence of the footnote start tag short code.
$i_int_len_content = strlen ( $p_str_content );
if ( $l_int_pos_start > $i_int_len_content ) {
$l_int_pos_start = $i_int_len_content ;
}
$l_int_pos_start = strpos ( $p_str_content , $l_str_starting_tag , $l_int_pos_start );
// No short code found, stop here.
if ( ! $l_int_pos_start ) {
break ;
}
// Get first occurrence of the footnote end tag short code.
$l_int_pos_end = strpos ( $p_str_content , $l_str_ending_tag , $l_int_pos_start );
// No short code found, stop here.
if ( ! $l_int_pos_end ) {
break ;
}
// Calculate the length of the footnote.
$l_int_length = $l_int_pos_end - $l_int_pos_start ;
// Get footnote text.
$l_str_footnote_text = substr ( $p_str_content , $l_int_pos_start + strlen ( $l_str_starting_tag ), $l_int_length - strlen ( $l_str_starting_tag ) );
// Get tooltip text if present.
self :: $a_str_tooltip_shortcode = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_TOOLTIP_EXCERPT_DELIMITER );
self :: $a_int_tooltip_shortcode_length = strlen ( self :: $a_str_tooltip_shortcode );
$l_int_tooltip_text_length = strpos ( $l_str_footnote_text , self :: $a_str_tooltip_shortcode );
$l_bool_has_tooltip_text = ! $l_int_tooltip_text_length ? false : true ;
if ( $l_bool_has_tooltip_text ) {
$l_str_tooltip_text = substr ( $l_str_footnote_text , 0 , $l_int_tooltip_text_length );
} else {
$l_str_tooltip_text = '' ;
}
/**
* URL line wrapping for Unicode non conformant browsers .
*
* @ since 2.1 . 1 ( CSS )
* @ since 2.1 . 4 ( PHP )
*
* Despite Unicode recommends to line - wrap URLs at slashes , and Firefox follows
* the Unicode standard , Chrome does not , making long URLs hang out of tooltips
* or extend reference containers , so that the end is hidden outside the window
* and may eventually be viewed after we scroll horizontally or zoom out . It is
* up to the web page to make URLs breaking anywhere by wrapping them in a span
* that is assigned appropriate CSS properties and values .
* @ see css / public . css
*
* - Bugfix : Tooltips : fix line breaking for hyperlinked URLs in Unicode - non - compliant user agents , thanks to @ andreasra bug report .
*
* @ since 2.1 . 1
*
* @ reporter @ andreasra
* @ link https :// wordpress . org / support / topic / footnotes - appearing - in - header / page / 3 / #post-13657398
*
*
* - Bugfix : Reference container : fix width in mobile view by URL wrapping for Unicode - non - conformant browsers , thanks to @ karolszakiel bug report .
*
* @ since 2.1 . 3
* @ date 2020 - 11 - 23
*
* @ reporter @ karolszakiel
* @ link https :// wordpress . org / support / topic / footnotes - on - mobile - phones /
*
*
* - Bugfix : Reference container , tooltips : fix line wrapping of URLs ( hyperlinked or not ) based on pattern , not link element .
*
* @ since 2.1 . 4
* @ date 2020 - 11 - 25 T0837 + 0100
* @ link https :// wordpress . org / support / topic / footnotes - on - mobile - phones / #post-13710682
*
*
* - Bugfix : Reference container , tooltips : URL wrap : exclude image source too , thanks to @ bjrnet21 bug report .
*
* @ since 2.1 . 5
*
* @ reporter @ bjrnet21
* @ link https :// wordpress . org / support / topic / 2 - 1 - 4 - breaks - on - my - site - images - dont - show /
*
*
* - Bugfix : Reference container , tooltips : URL wrap : fix regex , thanks to @ a223123131 bug report .
*
* @ since 2.1 . 6
* @ date 2020 - 12 - 09 T1921 + 0100
*
* @ reporter @ a223123131
* @ link https :// wordpress . org / support / topic / broken - layout - starting - version - 2 - 1 - 4 /
*
* Even ARIA labels may take a URL as value , so use \w = [ \ ' " ] as a catch-all 2020-12-10T1005+0100
*
* - Bugfix : Dashboard : URL wrap : add option to properly enable / disable URL wrap .
*
* @ since 2.1 . 6
* @ date 2020 - 12 - 09 T1606 + 0100
*
*
* - Bugfix : Reference container , tooltips : URL wrap : make the quotation mark optional wrt query parameters , thanks to @ spiralofhope2 bug report .
*
* @ since 2.2 . 6
* @ date 2020 - 12 - 23 T0409 + 0100
*
* @ reporter @ spiralofhope2
* @ link https :// wordpress . org / support / topic / two - links - now - breaks - footnotes - with - blogtext /
*
*
* - Bugfix : Reference container , tooltips : URL wrap : remove a bug introduced in the regex , thanks to @ rjl20 @ spaceling @ lukashuggenberg @ klusik @ friedrichnorth @ bernardzit bug reports .
*
* @ since 2.2 . 7
* @ date 2020 - 12 - 23 T1046 + 0100
*
* @ reporter @ rjl20
* @ link https :// wordpress . org / support / topic / two - links - now - breaks - footnotes - with - blogtext / #post-13825479
*
* @ reporter @ spaceling
* @ link https :// wordpress . org / support / topic / two - links - now - breaks - footnotes - with - blogtext / #post-13825532
*
* @ reporter @ lukashuggenberg
* @ link https :// wordpress . org / support / topic / 2 - 2 - 6 - breaks - all - footnotes /
*
* @ reporter @ klusik
* @ link https :// wordpress . org / support / topic / 2 - 2 - 6 - breaks - all - footnotes / #post-13825885
*
* @ reporter @ friedrichnorth
* @ link https :// wordpress . org / support / topic / footnotes - dont - show - after - update - to - 2 - 2 - 6 /
*
* @ reporter @ bernardzit
* @ link https :// wordpress . org / support / topic / footnotes - dont - show - after - update - to - 2 - 2 - 6 / #post-13826029
*
* @ since 2.2 . 8 Bugfix : Reference container , tooltips : URL wrap : correctly make the quotation mark optional wrt query parameters , thanks to @ spiralofhope2 bug report .
* @ date 2020 - 12 - 23 T1107 + 0100
*
* Correct is duplicating the negative lookbehind w / o quotes : '(?<!\w=)'
*
* @ since 2.2 . 9 Bugfix : Reference container , tooltips : URL wrap : account for RFC 2396 allowed characters in parameter names .
* @ date 2020 - 12 - 24 T1956 + 0100
* @ link https :// stackoverflow . com / questions / 814700 / http - url - allowed - characters - in - parameter - names
*
* @ since 2.2 . 9 Bugfix : Reference container , tooltips : URL wrap : exclude URLs also where the equals sign is preceded by an entity or character reference .
* @ date 2020 - 12 - 25 T1251 + 0100
*
* @ since 2.2 . 10 Bugfix : Reference container , tooltips : URL wrap : support also file transfer protocol URLs .
* @ date 2020 - 12 - 25 T2220 + 0100
*
*
* - Bugfix : Reference container , tooltips : URL wrap : exclude URL pattern as folder name in Wayback Machine URL , thanks to @ rumperuu bug report .
*
* @ since 2.5 . 3
* @ date 2021 - 01 - 24
*
* @ reporter @ rumperuu
* @ link https :// wordpress . org / support / topic / line - wrap - href - regex - bug /
*
* By adding a 3 rd negative lookbehind : '(?<!/)' .
*
*
* - Bugfix : Reference container , tooltips : URL wrap : account for leading space in value , thanks to @ karolszakiel example provision .
*
* @ since 2.5 . 4
*
* @ reporter @ karolszakiel
* @ link https :// wordpress . org / support / topic / footnotes - on - mobile - phones /
*
* The value of an href argument may have leading ( and trailing ) space .
* @ link https :// webmasters . stackexchange . com / questions / 93540 / are - spaces - in - href - valid
* Needs to replicate the relevant negative lookbehind at least with one and with two spaces .
* Note : The WordPress blog engine edits these values , cropping these leading / trailing spaces .
* But given they can occur on WP - powered websites , some page builders may probably not .
*/
if ( MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTE_URL_WRAP_ENABLED ) ) ) {
$l_str_footnote_text = preg_replace (
'#(?<![-\w\.!~\*\'\(\);]=[\'"])(?<![-\w\.!~\*\'\(\);]=[\'"] )(?<![-\w\.!~\*\'\(\);]=[\'"] )(?<![-\w\.!~\*\'\(\);]=)(?<!/)((ht|f)tps?://[^\\s<]+)#' ,
'<span class="footnote_url_wrap">$1</span>' ,
$l_str_footnote_text
);
}
// Text to be displayed instead of the footnote.
$l_str_footnote_replace_text = '' ;
// Whether hard links are enabled.
if ( self :: $a_bool_hard_links_enable ) {
// Get the configurable parts.
self :: $a_str_referrer_link_slug = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_REFERRER_FRAGMENT_ID_SLUG );
self :: $a_str_footnote_link_slug = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTE_FRAGMENT_ID_SLUG );
self :: $a_str_link_ids_separator = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_HARD_LINK_IDS_SEPARATOR );
// Streamline ID concatenation.
self :: $a_str_post_container_id_compound = self :: $a_str_link_ids_separator ;
self :: $a_str_post_container_id_compound .= self :: $a_int_post_id ;
self :: $a_str_post_container_id_compound .= self :: $a_str_link_ids_separator ;
self :: $a_str_post_container_id_compound .= self :: $a_int_reference_container_id ;
self :: $a_str_post_container_id_compound .= self :: $a_str_link_ids_separator ;
}
// Display the footnote referrers and the tooltips.
if ( ! $p_bool_hide_footnotes_text ) {
$l_int_index = MCI_Footnotes_Convert :: index ( $l_int_footnote_index , MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_COUNTER_STYLE ) );
// Display only a truncated footnote text if option enabled.
$l_bool_enable_excerpt = MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_MOUSE_OVER_BOX_EXCERPT_ENABLED ) );
$l_int_max_length = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_FOOTNOTES_MOUSE_OVER_BOX_EXCERPT_LENGTH ) );
// Define excerpt text as footnote text by default.
$l_str_excerpt_text = $l_str_footnote_text ;
/**
* Tooltip truncation .
*
* - Adding : Tooltips : Read - on button : Label : configurable instead of localizable , thanks to @ rovanov example provision .
*
* @ since 2.1 . 0
* @ date 2020 - 11 - 08 T2146 + 0100
*
* @ reporter @ rovanov
* @ link https :// wordpress . org / support / topic / offset - x - axis - and - offset - y - axis - does - not - working /
*
* If the tooltip truncation option is enabled , it’ done based on character count ,
* and a trailing incomplete word is cropped .
* This is equivalent to the WordPress default excerpt generation , i . e . without a
* custom excerpt and without a delimiter . But WordPress does word count , usually 55.
*/
if ( self :: $a_bool_tooltips_enabled && $l_bool_enable_excerpt ) {
$l_str_dummy_text = wp_strip_all_tags ( $l_str_footnote_text );
if ( is_int ( $l_int_max_length ) && strlen ( $l_str_dummy_text ) > $l_int_max_length ) {
$l_str_excerpt_text = substr ( $l_str_dummy_text , 0 , $l_int_max_length );
$l_str_excerpt_text = substr ( $l_str_excerpt_text , 0 , strrpos ( $l_str_excerpt_text , ' ' ) );
$l_str_excerpt_text .= ' … <' ;
$l_str_excerpt_text .= self :: $a_bool_hard_links_enable ? 'a' : 'span' ;
$l_str_excerpt_text .= ' class="footnote_tooltip_continue" ' ;
$l_str_excerpt_text .= 'onclick="footnote_move_to_anchor_' . self :: $a_int_post_id ;
$l_str_excerpt_text .= '_' . self :: $a_int_reference_container_id ;
$l_str_excerpt_text .= '(\'footnote_plugin_reference_' . self :: $a_int_post_id ;
$l_str_excerpt_text .= '_' . self :: $a_int_reference_container_id ;
$l_str_excerpt_text .= " _ $l_int_index '); \" " ;
// If enabled, add the hard link fragment ID.
if ( self :: $a_bool_hard_links_enable ) {
$l_str_excerpt_text .= ' href="#' ;
$l_str_excerpt_text .= self :: $a_str_footnote_link_slug ;
$l_str_excerpt_text .= self :: $a_str_post_container_id_compound ;
$l_str_excerpt_text .= $l_int_index ;
$l_str_excerpt_text .= '"' ;
}
$l_str_excerpt_text .= '>' ;
/**
* Configurable read - on button label .
*
* - Adding : Tooltips : Read - on button : Label : configurable instead of localizable , thanks to @ rovanov example provision .
*
* @ since 2.1 . 0
* @ date 2020 - 11 - 08 T2146 + 0100
*
* @ reporter @ rovanov
* @ link https :// wordpress . org / support / topic / offset - x - axis - and - offset - y - axis - does - not - working /
*/
$l_str_excerpt_text .= MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_TOOLTIP_READON_LABEL );
$l_str_excerpt_text .= self :: $a_bool_hard_links_enable ? '</a>' : '</span>' ;
}
}
/**
* Referrers element superscript or baseline .
*
* Referrers : new setting for vertical align : superscript ( default ) or baseline ( optional ), thanks to @ cwbayer bug report
*
* @ since 2.1 . 1
*
* @ reporter @ cwbayer
* @ link https :// wordpress . org / support / topic / footnote - number - in - text - superscript - disrupts - leading /
*
* define the HTML element to use for the referrers .
*/
if ( MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_REFERRER_SUPERSCRIPT_TAGS ) ) ) {
$l_str_sup_span = 'sup' ;
} else {
$l_str_sup_span = 'span' ;
}
// Whether hard links are enabled.
if ( self :: $a_bool_hard_links_enable ) {
self :: $a_str_link_span = 'a' ;
self :: $a_str_link_close_tag = '</a>' ;
// Self::$a_str_link_open_tag will be defined as needed.
// Compose hyperlink address (leading space is in template).
$l_str_footnote_link_argument = 'href="#' ;
$l_str_footnote_link_argument .= self :: $a_str_footnote_link_slug ;
$l_str_footnote_link_argument .= self :: $a_str_post_container_id_compound ;
$l_str_footnote_link_argument .= $l_int_index ;
$l_str_footnote_link_argument .= '" class="footnote_hard_link"' ;
/**
* Compose fragment ID anchor with offset , for use in reference container .
* Empty span , child of empty span , to avoid tall dotted rectangles in browser .
*/
$l_str_referrer_anchor_element = '<span class="footnote_referrer_base"><span id="' ;
$l_str_referrer_anchor_element .= self :: $a_str_referrer_link_slug ;
$l_str_referrer_anchor_element .= self :: $a_str_post_container_id_compound ;
$l_str_referrer_anchor_element .= $l_int_index ;
$l_str_referrer_anchor_element .= '" class="footnote_referrer_anchor"></span></span>' ;
} else {
/**
* Initialize hard link variables when hard links are disabled .
*
* - Bugfix : Process : initialize hard link address variables to empty string to fix 'undefined variable' bug , thanks to @ a223123131 bug report .
*
* @ since 2.4 . 0
* @ date 2021 - 01 - 04 T1622 + 0100
*
* @ reporter @ a223123131
* @ link https :// wordpress . org / support / topic / wp_debug - php - notice /
*
* If no hyperlink nor offset anchor is needed , initialize as empty .
*/
$l_str_footnote_link_argument = '' ;
$l_str_referrer_anchor_element = '' ;
// The link element is set independently as it may be needed for styling.
if ( MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_LINK_ELEMENT_ENABLED ) ) ) {
self :: $a_str_link_span = 'a' ;
self :: $a_str_link_open_tag = '<a>' ;
self :: $a_str_link_close_tag = '</a>' ;
}
}
// Determine tooltip content.
if ( self :: $a_bool_tooltips_enabled ) {
$l_str_tooltip_content = $l_bool_has_tooltip_text ? $l_str_tooltip_text : $l_str_excerpt_text ;
} else {
$l_str_tooltip_content = '' ;
}
/**
* Determine shrink width if alternative tooltips are enabled .
*
* @ since 2.5 . 6
*/
$l_str_tooltip_style = '' ;
if ( self :: $a_bool_alternative_tooltips_enabled && self :: $a_bool_tooltips_enabled ) {
$l_int_tooltip_length = strlen ( wp_strip_all_tags ( $l_str_tooltip_content ) );
if ( $l_int_tooltip_length < 70 ) {
$l_str_tooltip_style = ' style="width: ' ;
$l_str_tooltip_style .= ( $l_int_tooltip_length * . 7 );
$l_str_tooltip_style .= 'em;"' ;
}
}
// Fill in 'templates/public/footnote.html'.
$l_obj_template -> replace (
array (
'link-span' => self :: $a_str_link_span ,
'post_id' => self :: $a_int_post_id ,
'container_id' => self :: $a_int_reference_container_id ,
'note_id' => $l_int_index ,
'hard-link' => $l_str_footnote_link_argument ,
'sup-span' => $l_str_sup_span ,
'before' => MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_STYLING_BEFORE ),
'index' => $l_int_index ,
'after' => MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_STYLING_AFTER ),
'anchor-element' => $l_str_referrer_anchor_element ,
'style' => $l_str_tooltip_style ,
'text' => $l_str_tooltip_content ,
)
);
$l_str_footnote_replace_text = $l_obj_template -> get_content ();
// Reset the template.
$l_obj_template -> reload ();
// If standard tooltips are enabled but alternative are not.
if ( self :: $a_bool_tooltips_enabled && ! self :: $a_bool_alternative_tooltips_enabled ) {
$l_int_offset_y = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_FOOTNOTES_MOUSE_OVER_BOX_OFFSET_Y ) );
$l_int_offset_x = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_FOOTNOTES_MOUSE_OVER_BOX_OFFSET_X ) );
$l_int_fade_in_delay = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_MOUSE_OVER_BOX_FADE_IN_DELAY ) );
$l_int_fade_in_duration = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_MOUSE_OVER_BOX_FADE_IN_DURATION ) );
$l_int_fade_out_delay = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_MOUSE_OVER_BOX_FADE_OUT_DELAY ) );
$l_int_fade_out_duration = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_MOUSE_OVER_BOX_FADE_OUT_DURATION ) );
// Fill in 'templates/public/tooltip.html'.
$l_obj_template_tooltip -> replace (
array (
'post_id' => self :: $a_int_post_id ,
'container_id' => self :: $a_int_reference_container_id ,
'note_id' => $l_int_index ,
'position' => MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_MOUSE_OVER_BOX_POSITION ),
'offset-y' => ! empty ( $l_int_offset_y ) ? $l_int_offset_y : 0 ,
'offset-x' => ! empty ( $l_int_offset_x ) ? $l_int_offset_x : 0 ,
'fade-in-delay' => ! empty ( $l_int_fade_in_delay ) ? $l_int_fade_in_delay : 0 ,
'fade-in-duration' => ! empty ( $l_int_fade_in_duration ) ? $l_int_fade_in_duration : 0 ,
'fade-out-delay' => ! empty ( $l_int_fade_out_delay ) ? $l_int_fade_out_delay : 0 ,
'fade-out-duration' => ! empty ( $l_int_fade_out_duration ) ? $l_int_fade_out_duration : 0 ,
)
);
$l_str_footnote_replace_text .= $l_obj_template_tooltip -> get_content ();
$l_obj_template_tooltip -> reload ();
}
}
// Replace the footnote with the template.
$p_str_content = substr_replace ( $p_str_content , $l_str_footnote_replace_text , $l_int_pos_start , $l_int_length + strlen ( $l_str_ending_tag ) );
// Add footnote only if not empty.
if ( ! empty ( $l_str_footnote_text ) ) {
// Set footnote to the output box at the end.
self :: $a_arr_footnotes [] = $l_str_footnote_text ;
// Increase footnote index.
$l_int_footnote_index ++ ;
}
/**
* Fixes a footnotes numbering bug ( happening under de facto rare circumstances ) .
*
* - Bugfix : Fixed occasional bug where footnote ordering could be out of sequence
*
* @ since 1.6 . 4
* @ date 2016 - 06 - 29 T0054 + 0000
* @ committer @ dartiss
* @ link https :// plugins . trac . wordpress . org / browser / footnotes / trunk / class / task . php ? rev = 1445718 @ dartiss’ class / task . php
* @ link https :// plugins . trac . wordpress . org / log / footnotes / trunk / class / task . php ? rev = 1445718 @ dartiss re - added class / task . php
* @ link https :// plugins . trac . wordpress . org / browser / footnotes / trunk / class ? rev = 1445711 class / w / o task . php
* @ link https :// plugins . trac . wordpress . org / changeset / 1445711 / footnotes / trunk / class @ dartiss deleted class / task . php
* @ link https :// plugins . trac . wordpress . org / browser / footnotes / trunk / class / task . php ? rev = 1026210 @ aricura’ latest class / task . php
*
*
* - Bugfix : Process : fix numbering bug impacting footnote #2 with footnote #1 close to start, thanks to @rumperuu bug report, thanks to @lolzim code contribution.
*
* @ since 2.5 . 5
*
* @ contributor @ lolzim
* @ link https :// wordpress . org / support / topic / footnotes - numbered - incorrectly / #post-14062032
*
* @ reporter @ rumperuu
* @ link https :// wordpress . org / support / topic / footnotes - numbered - incorrectly /
*
* This assignment was overridden by another one , causing the algorithm to jump back
* near the post start to a position calculated as the sum of the length of the last
* footnote and the length of the last footnote replace text .
* A bug disturbing the order of the footnotes depending on the text before the first
* footnote , the length of the first footnote and the length of the templates for the
* footnote and the tooltip . Moreover , it was causing non - trivial process garbage .
*/
// Add offset to the new starting position.
$l_int_pos_start += $l_int_length + strlen ( $l_str_ending_tag );
} while ( true );
// Return content.
return $p_str_content ;
}
/**
* Generates the reference container .
*
* @ since 1.5 . 0
* @ return string
*
* @ since 2.0 . 0 Update : remove backlink symbol along with column 2 of the reference container
* @ since 2.0 . 3 Bugfix : prepend an arrow on user request
* @ since 2.0 . 6 Bugfix : Reference container : fix line breaking behavior in footnote number clusters .
* @ since 2.0 . 4 Bugfix : restore the arrow select and backlink symbol input settings
* @ since 2.1 . 1 Bugfix : Referrers , reference container : Combining identical footnotes : fix dead links and ensure referrer - backlink bijectivity , thanks to @ happyches bug report .
* @ since 2.1 . 1 Bugfix : Reference container : Backlink symbol : make optional , not suggest configuring it to invisible , thanks to @ spaceling feedback .
*/
public function reference_container () {
// No footnotes have been replaced on this page.
if ( empty ( self :: $a_arr_footnotes ) ) {
return '' ;
}
/**
* Footnote index backlink symbol .
*
* - Bugfix : Reference container : Backlink symbol : make optional , not suggest configuring it to invisible , thanks to @ spaceling feedback .
*
* @ since 2.1 . 1
*
* @ reporter @ spaceling
* @ link https :// wordpress . org / support / topic / change - the - position - 5 / page / 2 / #post-13671138
*
* If the backlink symbol is enabled .
*/
if ( MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_REFERENCE_CONTAINER_BACKLINK_SYMBOL_ENABLE ) ) ) {
// Get html arrow.
$l_str_arrow = MCI_Footnotes_Convert :: get_arrow ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_HYPERLINK_ARROW ) );
// Set html arrow to the first one if invalid index defined.
if ( is_array ( $l_str_arrow ) ) {
$l_str_arrow = MCI_Footnotes_Convert :: get_arrow ( 0 );
}
// Get user defined arrow.
$l_str_arrow_user_defined = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_HYPERLINK_ARROW_USER_DEFINED );
if ( ! empty ( $l_str_arrow_user_defined ) ) {
$l_str_arrow = $l_str_arrow_user_defined ;
}
// Wrap the arrow in a @media print { display:hidden } span.
$l_str_footnote_arrow = '<span class="footnote_index_arrow">' ;
$l_str_footnote_arrow .= $l_str_arrow . '</span>' ;
} else {
// If the backlink symbol isn’
$l_str_arrow = '' ;
$l_str_footnote_arrow = '' ;
}
/**
* Backlink separator .
*
* - Bugfix : Reference container : make separating and terminating punctuation optional and configurable , thanks to @ docteurfitness issue report and code contribution .
*
* @ since 2.1 . 4
* @ date 2020 - 11 - 28 T1048 + 0100
*
* @ contributor @ docteurfitness
* @ link https :// wordpress . org / support / topic / update - 2 - 1 - 3 / #post-13704194
*
* @ reporter @ docteurfitness
* @ link https :// wordpress . org / support / topic / update - 2 - 1 - 3 /
*
* Initially a comma was appended in this algorithm for enumerations .
* The comma in enumerations is not generally preferred .
*/
if ( MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_BACKLINKS_SEPARATOR_ENABLED ) ) ) {
// Check if it is input-configured.
$l_str_separator = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_BACKLINKS_SEPARATOR_CUSTOM );
if ( empty ( $l_str_separator ) ) {
// If it is not, check which option is on.
$l_str_separator_option = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_BACKLINKS_SEPARATOR_OPTION );
switch ( $l_str_separator_option ) {
case 'comma' :
$l_str_separator = ',' ;
break ;
case 'semicolon' :
$l_str_separator = ';' ;
break ;
case 'en_dash' :
$l_str_separator = ' –' ;
break ;
}
}
} else {
$l_str_separator = '' ;
}
/**
* Backlink terminator .
*
* Initially a dot was appended in the table row template .
*
* @ since 2.0 . 6 a dot after footnote numbers is discarded as not localizable ;
* making it optional was envisaged .
* @ since 2.1 . 4 the terminator is optional , has options , and is configurable .
*/
if ( MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_BACKLINKS_TERMINATOR_ENABLED ) ) ) {
// Check if it is input-configured.
$l_str_terminator = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_BACKLINKS_TERMINATOR_CUSTOM );
if ( empty ( $l_str_terminator ) ) {
// If it is not, check which option is on.
$l_str_terminator_option = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_BACKLINKS_TERMINATOR_OPTION );
switch ( $l_str_terminator_option ) {
case 'period' :
$l_str_terminator = '.' ;
break ;
case 'parenthesis' :
$l_str_terminator = ')' ;
break ;
case 'colon' :
$l_str_terminator = ':' ;
break ;
}
}
} else {
$l_str_terminator = '' ;
}
/**
* Line breaks .
*
* - Bugfix : Reference container : Backlinks : fix stacked enumerations by adding optional line breaks .
*
* @ since 2.1 . 4
* @ date 2020 - 11 - 28 T1049 + 0100
*
* The backlinks of combined footnotes are generally preferred in an enumeration .
* But when few footnotes are identical , stacking the items in list form is better .
* Variable number length and proportional character width require explicit line breaks .
* Otherwise , an ordinary space character offering a line break opportunity is inserted .
*/
$l_str_line_break = MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_BACKLINKS_LINE_BREAKS_ENABLED ) ) ? '<br />' : ' ' ;
/**
* Line breaks for source readability .
*
* For maintenance and support , table rows in the reference container should be
* separated by an empty line . So we add these line breaks for source readability .
* Before the first table row ( breaks between rows are ~ 200 lines below ) .
*/
$l_str_body = " \r \n \r \n " ;
/**
* Reference container table row template load .
*
* - Bugfix : Reference container : option to restore pre - 2.0 . 0 layout with the backlink symbol in an extra column .
*
* @ since 2.1 . 1
* @ date 2020 - 11 - 16 T2024 + 0100
*/
// When combining identical footnotes is turned on, another template is needed.
if ( MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_COMBINE_IDENTICAL_FOOTNOTES ) ) ) {
// The combining template allows for backlink clusters and supports cell clicking for single notes.
$l_obj_template = new MCI_Footnotes_Template ( MCI_Footnotes_Template :: C_STR_PUBLIC , 'reference-container-body-combi' );
} else {
// When 3-column layout is turned on (only available if combining is turned off).
if ( MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_REFERENCE_CONTAINER_3COLUMN_LAYOUT_ENABLE ) ) ) {
$l_obj_template = new MCI_Footnotes_Template ( MCI_Footnotes_Template :: C_STR_PUBLIC , 'reference-container-body-3column' );
} else {
// When switch symbol and index is turned on, and combining and 3-columns are off.
if ( MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_REFERENCE_CONTAINER_BACKLINK_SYMBOL_SWITCH ) ) ) {
$l_obj_template = new MCI_Footnotes_Template ( MCI_Footnotes_Template :: C_STR_PUBLIC , 'reference-container-body-switch' );
} else {
// Default is the standard template.
$l_obj_template = new MCI_Footnotes_Template ( MCI_Footnotes_Template :: C_STR_PUBLIC , 'reference-container-body' );
}
}
}
/**
* Switch backlink symbol and footnote number .
*
* - Bugfix : Reference container : option to append symbol ( prepended by default ), thanks to @ spaceling code contribution .
*
* @ since 2.1 . 1
* @ date 2020 - 11 - 16 T2024 + 0100
*
* @ contributor @ spaceling
* @ link https :// wordpress . org / support / topic / change - the - position - 5 / #post-13615994
*
*
* - Bugfix : Reference container : Backlink symbol : support for appending when combining identicals is on .
*
* @ since 2.1 . 4
* @ date 2020 - 11 - 26 T1633 + 0100
*/
$l_bool_symbol_switch = MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_REFERENCE_CONTAINER_BACKLINK_SYMBOL_SWITCH ) );
// Loop through all footnotes found in the page.
$num_footnotes = count ( self :: $a_arr_footnotes );
for ( $l_int_index = 0 ; $l_int_index < $num_footnotes ; $l_int_index ++ ) {
// Get footnote text.
$l_str_footnote_text = self :: $a_arr_footnotes [ $l_int_index ];
// If footnote is empty, go to the next one;.
// With combine identicals turned on, identicals will be deleted and are skipped.
if ( empty ( $l_str_footnote_text ) ) {
continue ;
}
// Generate content of footnote index cell.
$l_int_first_footnote_index = ( $l_int_index + 1 );
// Get the footnote index string and.
// Keep supporting legacy index placeholder.
$l_str_footnote_id = MCI_Footnotes_Convert :: index ( ( $l_int_index + 1 ), MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_COUNTER_STYLE ) );
/**
* Case of only one backlink per table row .
*
* If enabled , and for the case the footnote is single , compose hard link .
*/
// Define anyway.
$l_str_hard_link_address = '' ;
if ( self :: $a_bool_hard_links_enable ) {
/**
* Use - Backbutton - Hint tooltip , optional and configurable .
*
* - Update : Reference container : Hard backlinks ( optional ) : optional configurable tooltip hinting to use the backbutton instead , thanks to @ theroninjedi47 bug report .
*
* @ since 2.5 . 4
*
* @ reporter @ theroninjedi47
* @ link https :// wordpress . org / support / topic / hyperlinked - footnotes - creating - excessive - back - history /
*
* When hard links are enabled , clicks on the backlinks are logged in the browsing history .
* This tooltip hints to use the backbutton instead , so the history gets streamlined again .
* @ link https :// wordpress . org / support / topic / making - it - amp - compatible / #post-13837359
*/
if ( MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_BACKLINK_TOOLTIP_ENABLE ) ) ) {
$l_str_use_backbutton_hint = ' title="' ;
$l_str_use_backbutton_hint .= MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_BACKLINK_TOOLTIP_TEXT );
$l_str_use_backbutton_hint .= '"' ;
} else {
$l_str_use_backbutton_hint = '' ;
}
/**
* Compose fragment ID anchor with offset , for use in reference container .
* Empty span , child of empty span , to avoid tall dotted rectangles in browser .
*/
$l_str_footnote_anchor_element = '<span class="footnote_item_base"><span id="' ;
$l_str_footnote_anchor_element .= self :: $a_str_footnote_link_slug ;
$l_str_footnote_anchor_element .= self :: $a_str_post_container_id_compound ;
$l_str_footnote_anchor_element .= $l_str_footnote_id ;
$l_str_footnote_anchor_element .= '" class="footnote_item_anchor"></span></span>' ;
// Compose optional hard link address.
$l_str_hard_link_address = ' href="#' ;
$l_str_hard_link_address .= self :: $a_str_referrer_link_slug ;
$l_str_hard_link_address .= self :: $a_str_post_container_id_compound ;
$l_str_hard_link_address .= $l_str_footnote_id . '"' ;
$l_str_hard_link_address .= $l_str_use_backbutton_hint ;
// Compose optional opening link tag with optional hard link, mandatory for instance.
self :: $a_str_link_open_tag = '<a' . $l_str_hard_link_address ;
self :: $a_str_link_open_tag = ' class="footnote_hard_back_link">' ;
} else {
// Define as empty, too.
$l_str_footnote_anchor_element = '' ;
}
/**
* Support for combining identicals : compose enumerated backlinks .
*
* - Bugfix : Referrers , reference container : Combining identical footnotes : fix dead links and ensure referrer - backlink bijectivity , thanks to @ happyches bug report .
*
* @ since 2.1 . 1
* @ date 2020 - 11 - 14 T2233 + 0100
*
* @ reporter @ happyches
* @ link https :// wordpress . org / support / topic / custom - css - for - jumbled - references /
*
* Prepare to have single footnotes , where the click event and
* optional hard link need to be set to cover the table cell ,
* for better usability and UX .
*/
// Set a flag to check for the combined status of a footnote item.
$l_bool_flag_combined = false ;
// Set otherwise unused variables as empty to avoid screwing up the placeholder array.
$l_str_backlink_event = '' ;
$l_str_footnote_backlinks = '' ;
$l_str_footnote_reference = '' ;
if ( MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_COMBINE_IDENTICAL_FOOTNOTES ) ) ) {
// ID, optional hard link address, and class.
$l_str_footnote_reference = '<' . self :: $a_str_link_span ;
$l_str_footnote_reference .= ' id="footnote_plugin_reference_' ;
$l_str_footnote_reference .= self :: $a_int_post_id ;
$l_str_footnote_reference .= '_' . self :: $a_int_reference_container_id ;
$l_str_footnote_reference .= " _ $l_str_footnote_id\ " " ;
if ( self :: $a_bool_hard_links_enable ) {
$l_str_footnote_reference .= ' href="#' ;
$l_str_footnote_reference .= self :: $a_str_referrer_link_slug ;
$l_str_footnote_reference .= self :: $a_str_post_container_id_compound ;
$l_str_footnote_reference .= $l_str_footnote_id . '"' ;
$l_str_footnote_reference .= $l_str_use_backbutton_hint ;
}
$l_str_footnote_reference .= ' class="footnote_backlink"' ;
// The click event goes in the table cell if footnote remains single.
$l_str_backlink_event = ' onclick="footnote_move_to_anchor_' ;
$l_str_backlink_event .= self :: $a_int_post_id ;
$l_str_backlink_event .= '_' . self :: $a_int_reference_container_id ;
$l_str_backlink_event .= " ('footnote_plugin_tooltip_ " ;
$l_str_backlink_event .= self :: $a_int_post_id ;
$l_str_backlink_event .= '_' . self :: $a_int_reference_container_id ;
$l_str_backlink_event .= " _ $l_str_footnote_id '); \" " ;
// The dedicated template enumerating backlinks uses another variable.
$l_str_footnote_backlinks = $l_str_footnote_reference ;
// Append the click event right to the backlink item for enumerations;.
// Else it goes in the table cell.
$l_str_footnote_backlinks .= $l_str_backlink_event . '>' ;
$l_str_footnote_reference .= '>' ;
// Append the optional offset anchor for hard links.
if ( self :: $a_bool_hard_links_enable ) {
$l_str_footnote_reference .= $l_str_footnote_anchor_element ;
$l_str_footnote_backlinks .= $l_str_footnote_anchor_element ;
}
// Continue both single note and notes cluster, depending on switch option status.
if ( $l_bool_symbol_switch ) {
$l_str_footnote_reference .= " $l_str_footnote_id $l_str_footnote_arrow " ;
$l_str_footnote_backlinks .= " $l_str_footnote_id $l_str_footnote_arrow " ;
} else {
$l_str_footnote_reference .= " $l_str_footnote_arrow $l_str_footnote_id " ;
$l_str_footnote_backlinks .= " $l_str_footnote_arrow $l_str_footnote_id " ;
}
// If that is the only footnote with this text, we’
// Check if it isn't the last footnote in the array.
if ( $l_int_first_footnote_index < count ( self :: $a_arr_footnotes ) ) {
// Get all footnotes that haven't passed yet.
$num_footnotes = count ( self :: $a_arr_footnotes );
for ( $l_int_check_index = $l_int_first_footnote_index ; $l_int_check_index < $num_footnotes ; $l_int_check_index ++ ) {
// Check if a further footnote is the same as the actual one.
if ( self :: $a_arr_footnotes [ $l_int_check_index ] === $l_str_footnote_text ) {
// If so, set the further footnote as empty so it won't be displayed later.
self :: $a_arr_footnotes [ $l_int_check_index ] = '' ;
// Set the flag to true for the combined status.
$l_bool_flag_combined = true ;
// Update the footnote ID.
$l_str_footnote_id = MCI_Footnotes_Convert :: index ( ( $l_int_check_index + 1 ), MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_COUNTER_STYLE ) );
// Resume composing the backlinks enumeration.
$l_str_footnote_backlinks .= " $l_str_separator </ " ;
$l_str_footnote_backlinks .= self :: $a_str_link_span . '>' ;
$l_str_footnote_backlinks .= $l_str_line_break ;
$l_str_footnote_backlinks .= '<' . self :: $a_str_link_span ;
$l_str_footnote_backlinks .= ' id="footnote_plugin_reference_' ;
$l_str_footnote_backlinks .= self :: $a_int_post_id ;
$l_str_footnote_backlinks .= '_' . self :: $a_int_reference_container_id ;
$l_str_footnote_backlinks .= " _ $l_str_footnote_id\ " " ;
// Insert the optional hard link address.
if ( self :: $a_bool_hard_links_enable ) {
$l_str_footnote_backlinks .= ' href="#' ;
$l_str_footnote_backlinks .= self :: $a_str_referrer_link_slug ;
$l_str_footnote_backlinks .= self :: $a_str_post_container_id_compound ;
$l_str_footnote_backlinks .= $l_str_footnote_id . '"' ;
$l_str_footnote_backlinks .= $l_str_use_backbutton_hint ;
}
$l_str_footnote_backlinks .= ' class="footnote_backlink"' ;
$l_str_footnote_backlinks .= ' onclick="footnote_move_to_anchor_' ;
$l_str_footnote_backlinks .= self :: $a_int_post_id ;
$l_str_footnote_backlinks .= '_' . self :: $a_int_reference_container_id ;
$l_str_footnote_backlinks .= " ('footnote_plugin_tooltip_ " ;
$l_str_footnote_backlinks .= self :: $a_int_post_id ;
$l_str_footnote_backlinks .= '_' . self :: $a_int_reference_container_id ;
$l_str_footnote_backlinks .= " _ $l_str_footnote_id '); \" > " ;
// Append the offset anchor for optional hard links.
if ( self :: $a_bool_hard_links_enable ) {
$l_str_footnote_backlinks .= '<span class="footnote_item_base"><span id="' ;
$l_str_footnote_backlinks .= self :: $a_str_footnote_link_slug ;
$l_str_footnote_backlinks .= self :: $a_str_post_container_id_compound ;
$l_str_footnote_backlinks .= $l_str_footnote_id ;
$l_str_footnote_backlinks .= '" class="footnote_item_anchor"></span></span>' ;
}
$l_str_footnote_backlinks .= $l_bool_symbol_switch ? '' : $l_str_footnote_arrow ;
$l_str_footnote_backlinks .= $l_str_footnote_id ;
$l_str_footnote_backlinks .= $l_bool_symbol_switch ? $l_str_footnote_arrow : '' ;
}
}
}
// Append terminator and end tag.
$l_str_footnote_reference .= $l_str_terminator . '</' . self :: $a_str_link_span . '>' ;
$l_str_footnote_backlinks .= $l_str_terminator . '</' . self :: $a_str_link_span . '>' ;
}
// Line wrapping of URLs already fixed, see above.
// Get reference container item text if tooltip text goes separate.
$l_int_tooltip_text_length = strpos ( $l_str_footnote_text , self :: $a_str_tooltip_shortcode );
$l_bool_has_tooltip_text = ! $l_int_tooltip_text_length ? false : true ;
if ( $l_bool_has_tooltip_text ) {
$l_str_not_tooltip_text = substr ( $l_str_footnote_text , ( $l_int_tooltip_text_length + self :: $a_int_tooltip_shortcode_length ) );
self :: $a_bool_mirror_tooltip_text = MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_TOOLTIP_EXCERPT_MIRROR_ENABLE ) );
if ( self :: $a_bool_mirror_tooltip_text ) {
$l_str_tooltip_text = substr ( $l_str_footnote_text , 0 , $l_int_tooltip_text_length );
$l_str_reference_text_introducer = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_TOOLTIP_EXCERPT_MIRROR_SEPARATOR );
$l_str_reference_text = $l_str_tooltip_text . $l_str_reference_text_introducer . $l_str_not_tooltip_text ;
} else {
$l_str_reference_text = $l_str_not_tooltip_text ;
}
} else {
$l_str_reference_text = $l_str_footnote_text ;
}
// Replace all placeholders in table row template.
$l_obj_template -> replace (
array (
// Placeholder used in all templates.
'text' => $l_str_reference_text ,
// Used in standard layout W/O COMBINED FOOTNOTES.
'post_id' => self :: $a_int_post_id ,
'container_id' => self :: $a_int_reference_container_id ,
'note_id' => MCI_Footnotes_Convert :: index ( $l_int_first_footnote_index , MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_COUNTER_STYLE ) ),
'link-start' => self :: $a_str_link_open_tag ,
'link-end' => self :: $a_str_link_close_tag ,
'link-span' => self :: $a_str_link_span ,
'terminator' => $l_str_terminator ,
'anchor-element' => $l_str_footnote_anchor_element ,
'hard-link' => $l_str_hard_link_address ,
// Used in standard layout WITH COMBINED IDENTICALS TURNED ON.
'pointer' => $l_bool_flag_combined ? '' : ' pointer' ,
'event' => $l_bool_flag_combined ? '' : $l_str_backlink_event ,
'backlinks' => $l_bool_flag_combined ? $l_str_footnote_backlinks : $l_str_footnote_reference ,
// Legacy placeholders for use in legacy layout templates.
'arrow' => $l_str_footnote_arrow ,
'index' => $l_str_footnote_id ,
)
);
$l_str_body .= $l_obj_template -> get_content ();
// Extra line breaks for page source readability.
$l_str_body .= " \r \n \r \n " ;
$l_obj_template -> reload ();
}
// Call again for robustness when priority levels don’
self :: $a_int_scroll_offset = intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_FOOTNOTES_SCROLL_OFFSET ) );
// Streamline.
$l_bool_collapse_default = MCI_Footnotes_Convert :: to_bool ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_REFERENCE_CONTAINER_COLLAPSE ) );
/**
* Reference container label .
*
* - Bugfix : Reference container : Label : set empty label to U + 202 F NNBSP for more robustness , thanks to @ lukashuggenberg feedback .
*
* @ since 2.4 . 0
* @ date 2021 - 01 - 04 T0504 + 0100
*
* @ reporter @ lukashuggenberg
*
* Themes may drop - cap a first letter of initial paragraphs , like this label .
* In case of empty label that would apply to the left half button character .
* Hence the point in setting an empty label to U + 202 F NARROW NO - BREAK SPACE .
*/
$l_str_reference_container_label = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_REFERENCE_CONTAINER_NAME );
/**
* Select the reference container template according to the script mode .
*
* - Bugfix : Reference container : optional alternative expanding and collapsing without jQuery for use with hard links , thanks to @ hopper87it @ pkverma99 issue reports .
*
* @ since 2.5 . 6
*
* @ reporter @ hopper87it
* @ link https :// wordpress . org / support / topic / footnotes - wp - rocket /
*
* @ reporter @ pkverma99
* @ link https :// wordpress . org / support / topic / footnotes - wp - rocket / #post-14076188
*/
$l_str_script_mode = MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_FOOTNOTES_REFERENCE_CONTAINER_SCRIPT_MODE );
if ( 'jquery' === $l_str_script_mode ) {
// Load 'templates/public/reference-container.html'.
$l_obj_template_container = new MCI_Footnotes_Template ( MCI_Footnotes_Template :: C_STR_PUBLIC , 'reference-container' );
} else {
// Load 'templates/public/js-reference-container.html'.
$l_obj_template_container = new MCI_Footnotes_Template ( MCI_Footnotes_Template :: C_STR_PUBLIC , 'js-reference-container' );
}
$l_obj_template_container -> replace (
array (
'post_id' => self :: $a_int_post_id ,
'container_id' => self :: $a_int_reference_container_id ,
'element' => MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_STR_REFERENCE_CONTAINER_LABEL_ELEMENT ),
'name' => empty ( $l_str_reference_container_label ) ? ' ' : $l_str_reference_container_label ,
'button-style' => ! $l_bool_collapse_default ? 'display: none;' : '' ,
'style' => $l_bool_collapse_default ? 'display: none;' : '' ,
'content' => $l_str_body ,
'scroll-offset' => ( self :: $a_int_scroll_offset / 100 ),
'scroll-duration' => intval ( MCI_Footnotes_Settings :: instance () -> get ( MCI_Footnotes_Settings :: C_INT_FOOTNOTES_SCROLL_DURATION ) ),
)
);
// Free all found footnotes if reference container will be displayed.
self :: $a_arr_footnotes = array ();
return $l_obj_template_container -> get_content ();
}
}
