<?php /** * Includes the core function of the Plugin - Search and Replace the Footnotes. * * @filesource * @author Stefan Herndler * @since 1.5.0 * * @lastmodified 2021-02-27T0225+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’s 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 2020-11-08T1839+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+202F 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: defined( 'ABSPATH' ) or die; /** * Searches and replaces the footnotes. * Generates the reference container. * * @author Stefan Herndler * @since 1.5.0 */ class MCI_Footnotes_Task { /** * PROPERTIES */ /** * Contains all footnotes found on current public page. * * @author Stefan Herndler * @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. * * @author Stefan Herndler * @since 1.5.0 * @var bool */ public static $a_bool_AllowLoveMe = true; /** * Prefix for the Footnote html element ID. * * @author Stefan Herndler * @since 1.5.8 * @var string */ public static $a_str_Prefix = ""; /** * Infinite scroll / autoload 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_PostId = 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 2020-12-25T0338+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_ReferenceContainerId = 1; /** * Template process optimization * * - Bugfix: Templates: optimize template load and processing based on settings, thanks to @misfist code contribution. * * @since 2.4.0 * @date 2021-01-04T1355+0100 * * @author Patrizia Lutz @misfist * * @link https://wordpress.org/support/topic/template-override-filter/#post-13864301 * @link https://github.com/misfist/footnotes/releases/tag/2.4.0d3 repository * @link https://github.com/misfist/footnotes/compare/2.4.0%E2%80%A62.4.0d3 diff * * @var bool * * Streamline process depending on tooltip enabled status. * Load tooltip inline script only if jQuery tooltips are enabled. * Actual value depends on settings. */ public static $a_bool_TooltipsEnabled = false; public static $a_bool_AlternativeTooltipsEnabled = 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. */ public static $a_bool_HardLinksEnable = false; public static $a_str_ReferrerLinkSlug = 'r'; public static $a_str_FootnoteLinkSlug = 'f'; public static $a_str_LinkIdsSeparator = '+'; public static $a_str_PostContainerIdCompound = ''; /** * Scroll offset * * - Bugfix: Scroll offset: make configurable to fix site-dependent issues related to fixed headers. * * @since 2.1.4 * @date 2020-12-05T0538+0100 * * * - Bugfix: Scroll offset: initialize to safer one third window height for more robustness, thanks to @lukashuggenberg bug report. * * @since 2.4.0 * @date 2021-01-03T2055+0100 * @date 2021-01-04T0504+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 $a_int_ScrollOffset = 34; /** * Optional link element for footnote referrers and backlinks * * @since 2.0.0 add link elements along with hard links. * * * - Bugfix: Referrers and backlinks: Styling: make link elements optional to fix issues, thanks to @docteurfitness issue report and code contribution. * * @since 2.1.4 * @date 2020-11-25T1306+0100 * @date 2020-11-26T1051+0100 * * @contributor @docteurfitness * @link https://wordpress.org/support/topic/update-2-1-3/#post-13704194 * * @reporter @docteurfitness * @link https://wordpress.org/support/topic/update-2-1-3/ * * * - Adding: Referrers and backlinks: optional hard links for AMP compatibility, thanks to @psykonevro bug report, thanks to @martinneumannat code contribution. * * @since 2.3.0 * @date 2020-12-30T2313+0100 * * @contributor @martinneumannat * @link https://wordpress.org/support/topic/making-it-amp-compatible/ * * @reporter @psykonevro * @link https://wordpress.org/support/topic/footnotes-is-not-amp-compatible/ * * Although widely used for that purpose, hyperlinks are disliked for footnote linking. * Browsers may need to be prevented from logging these clicks in the browsing history, * as logging compromises the usability of the 'return to previous' button in browsers. * For that purpose, and for scroll animation, this linking is performed by JavaScript. * * Link elements raise concerns, so that mitigating their proliferation may be desired. * * By contrast, due to an insufficiency in the CSS standard, coloring elements with the * theme’s link color requires real link elements and cannot be done with named colors, * as CSS does not support 'color: link|hover|active|visited', after the pseudo-classes * of the link element. * * Yet styling these elements with the link color is not universally preferred, so that * the very presence of these link elements may need to be avoided. * * @see self::$a_bool_HardLinksEnable */ public static $a_str_LinkSpan = 'span'; public static $a_str_LinkOpenTag = ''; public static $a_str_LinkCloseTag = ''; /** * Dedicated tooltip text * * - Update: Tooltips: ability to display dedicated content before `[[/tooltip]]`, thanks to @jbj2199 issue report. * * @since 2.5.2 * @date 2021-01-19T2223+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. */ public static $a_bool_MirrorTooltipText = false; public static $a_str_TooltipShortcode = '[[/tooltip]]'; public static $a_int_TooltipShortcodeLength = 12; /** * Footnote delimiter syntax validation * * - Adding: Footnote delimiters: syntax validation for balanced footnote start and end tag short codes. * * @since 2.4.0 * @date 2021-01-01T0227+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_SyntaxErrorFlag = true; /** * METHODS */ /** * Register WordPress Hooks to replace Footnotes in the content of a public page. * * @author Stefan Herndler * @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’s 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 2020-11-06T1344+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 registerHooks() { /** * 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 2020-11-02T0330+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 2020-11-17T0254+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 2020-11-19T1849+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_TheContentPriority =< 1200). * * PHP_INT_MAX cannot be reset by leaving the number box empty. because browsers * (WebKit) don’t allow it, so we must resort to -1. * @link https://github.com/Modernizr/Modernizr/issues/171 */ // get values from settings: $l_int_TheTitlePriority = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_EXPERT_LOOKUP_THE_TITLE_PRIORITY_LEVEL)); $l_int_TheContentPriority = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_EXPERT_LOOKUP_THE_CONTENT_PRIORITY_LEVEL)); $l_int_TheExcerptPriority = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_EXPERT_LOOKUP_THE_EXCERPT_PRIORITY_LEVEL)); $l_int_WidgetTitlePriority = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_EXPERT_LOOKUP_WIDGET_TITLE_PRIORITY_LEVEL)); $l_int_WidgetTextPriority = 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: $l_int_TheTitlePriority = ($l_int_TheTitlePriority == -1) ? PHP_INT_MAX : $l_int_TheTitlePriority ; $l_int_TheContentPriority = ($l_int_TheContentPriority == -1) ? PHP_INT_MAX : $l_int_TheContentPriority ; $l_int_TheExcerptPriority = ($l_int_TheExcerptPriority == -1) ? PHP_INT_MAX : $l_int_TheExcerptPriority ; $l_int_WidgetTitlePriority = ($l_int_WidgetTitlePriority == -1) ? PHP_INT_MAX : $l_int_WidgetTitlePriority; $l_int_WidgetTextPriority = ($l_int_WidgetTextPriority == -1) ? PHP_INT_MAX : $l_int_WidgetTextPriority ; // append custom css to the header add_filter('wp_head', array($this, "wp_head"), PHP_INT_MAX); // append the love and share me slug to the footer add_filter('wp_footer', array($this, "wp_footer"), PHP_INT_MAX); if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_EXPERT_LOOKUP_THE_TITLE))) { add_filter('the_title', array($this, "the_title"), $l_int_TheTitlePriority); } // configurable priority level for reference container relative positioning; default 98: if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_EXPERT_LOOKUP_THE_CONTENT))) { add_filter('the_content', array($this, "the_content"), $l_int_TheContentPriority); /** * Hook for category pages * * - Bugfix: Hooks: support footnotes on category pages, thanks to @vitaefit bug report, thanks to @misfist code contribution. * * @since 2.5.0 * @date 2021-01-05T1402+0100 * * @contributor @misfist * @link https://wordpress.org/support/topic/footnote-doesntwork-on-category-page/#post-13864859 * * @reporter @vitaefit * @link https://wordpress.org/support/topic/footnote-doesntwork-on-category-page/ * * Category pages can have rich HTML content in a term description with article status. * For this to happen, WordPress’ built-in partial HTML blocker needs to be disabled. * @link https://docs.woocommerce.com/document/allow-html-in-term-category-tag-descriptions/ */ add_filter('term_description', array($this, "the_content"), $l_int_TheContentPriority); /** * Hook for popup maker popups * * - Bugfix: Hooks: support footnotes in Popup Maker popups, thanks to @squatcher bug report. * * @since 2.5.1 * @date 2021-01-18T2038+0100 * * @reporter @squatcher * @link https://wordpress.org/support/topic/footnotes-use-in-popup-maker/ */ add_filter('pum_popup_content', array($this, "the_content"), $l_int_TheContentPriority); } if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_EXPERT_LOOKUP_THE_EXCERPT))) { add_filter('the_excerpt', array($this, "the_excerpt"), $l_int_TheExcerptPriority); } if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_EXPERT_LOOKUP_WIDGET_TITLE))) { add_filter('widget_title', array($this, "widget_title"), $l_int_WidgetTitlePriority); } if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_EXPERT_LOOKUP_WIDGET_TEXT))) { add_filter('widget_text', array($this, "widget_text"), $l_int_WidgetTextPriority); } /** * 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 2020-11-08T1839+0100 * @accountable @pewgeuges */ // reset stored footnotes when displaying the header self::$a_arr_Footnotes = array(); self::$a_bool_AllowLoveMe = true; } /** * Outputs the custom css to the header of the public page. * * @author Stefan Herndler * @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 2021-02-12T1631+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_NormalizeSuperscript = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTE_REFERRERS_NORMAL_SUPERSCRIPT ); if ( $l_str_NormalizeSuperscript !== 'no' ) { if ( $l_str_NormalizeSuperscript === 'all' ) { 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::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_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_ReferenceContainerTopMargin = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_REFERENCE_CONTAINER_TOP_MARGIN)); $l_int_ReferenceContainerBottomMargin = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_REFERENCE_CONTAINER_BOTTOM_MARGIN)); echo ".footnotes_reference_container {margin-top: "; echo empty($l_int_ReferenceContainerTopMargin) ? '0' : $l_int_ReferenceContainerTopMargin; echo "px !important; margin-bottom: "; echo empty($l_int_ReferenceContainerBottomMargin) ? '0' : $l_int_ReferenceContainerBottomMargin; 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 2020-12-18T1447+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::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_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 2020-12-25T2304+0100 * * @reporter @noobishh * @link https://wordpress.org/support/topic/borders-25/ */ if ( MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_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_ColumnWidthEnabled = MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_BACKLINKS_COLUMN_WIDTH_ENABLED)); $l_bool_ColumnMaxWidthEnabled = MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_BACKLINKS_COLUMN_MAX_WIDTH_ENABLED)); if ( $l_bool_ColumnWidthEnabled || $l_bool_ColumnMaxWidthEnabled ) { echo ".footnote-reference-container { table-layout: fixed; }"; echo ".footnote_plugin_index, .footnote_plugin_index_combi {"; if ( $l_bool_ColumnWidthEnabled ) { $l_int_ColumnWidthScalar = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_BACKLINKS_COLUMN_WIDTH_SCALAR); $l_str_ColumnWidthUnit = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_BACKLINKS_COLUMN_WIDTH_UNIT); if (!empty($l_int_ColumnWidthScalar)) { if ($l_str_ColumnWidthUnit == '%') { if ($l_int_ColumnWidthScalar > 100) { $l_int_ColumnWidthScalar = 100; } } } else { $l_int_ColumnWidthScalar = 0; } echo " width: $l_int_ColumnWidthScalar$l_str_ColumnWidthUnit !important;"; } if ( $l_bool_ColumnMaxWidthEnabled ) { $l_int_ColumnMaxWidthScalar = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_BACKLINKS_COLUMN_MAX_WIDTH_SCALAR); $l_str_ColumnMaxWidthUnit = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_BACKLINKS_COLUMN_MAX_WIDTH_UNIT); if (!empty($l_int_ColumnMaxWidthScalar)) { if ($l_str_ColumnMaxWidthUnit == '%') { if ($l_int_ColumnMaxWidthScalar > 100) { $l_int_ColumnMaxWidthScalar = 100; } } } else { $l_int_ColumnMaxWidthScalar = 0; } echo " max-width: $l_int_ColumnMaxWidthScalar$l_str_ColumnMaxWidthUnit !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_HardLinksEnable = MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_HARD_LINKS_ENABLE)); // correct hard links enabled status depending on alternative reference container enabled status: $l_str_ScriptMode = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_REFERENCE_CONTAINER_SCRIPT_MODE); if ( $l_str_ScriptMode != 'jquery' ) { self::$a_bool_HardLinksEnable = true; } self::$a_int_ScrollOffset = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_SCROLL_OFFSET)); if (self::$a_bool_HardLinksEnable) { echo ".footnote_referrer_anchor, .footnote_item_anchor {bottom: "; echo self::$a_int_ScrollOffset; echo "vh;}\r\n"; } // tooltips: self::$a_bool_TooltipsEnabled = MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_MOUSE_OVER_BOX_ENABLED)); self::$a_bool_AlternativeTooltipsEnabled = MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_MOUSE_OVER_BOX_ALTERNATIVE)); if (self::$a_bool_TooltipsEnabled) { 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 2020-12-03T0954+0100 */ echo ' font-size: '; if(MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_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;'; // 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); } // 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); } // border width: $l_int_BorderWidth = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_MOUSE_OVER_BOX_BORDER_WIDTH); if (!empty($l_int_BorderWidth) && intval($l_int_BorderWidth) > 0) { printf(" border-width: %dpx !important; border-style: solid !important;", $l_int_BorderWidth); } // border color: $l_str_BorderColor = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_MOUSE_OVER_BOX_BORDER_COLOR); if (!empty($l_str_BorderColor)) { printf(" border-color: %s !important;", $l_str_BorderColor); } // corner radius: $l_int_BorderRadius = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_MOUSE_OVER_BOX_BORDER_RADIUS); if (!empty($l_int_BorderRadius) && intval($l_int_BorderRadius) > 0) { printf(" border-radius: %dpx !important;", $l_int_BorderRadius); } // shadow color: $l_str_BoxShadowColor = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_MOUSE_OVER_BOX_SHADOW_COLOR); if (!empty($l_str_BoxShadowColor)) { printf(" -webkit-box-shadow: 2px 2px 11px %s;", $l_str_BoxShadowColor); printf(" -moz-box-shadow: 2px 2px 11px %s;", $l_str_BoxShadowColor); printf(" box-shadow: 2px 2px 11px %s;", $l_str_BoxShadowColor); } /** * Tooltip position and timing * * - Bugfix: Tooltips: make display delays and fade durations configurable to conform to website style. * * @since 2.1.4 * @date 2020-12-06T1320+0100 * * * - Update: Tooltips: Alternative tooltips: connect to position/timing settings (for themes not supporting jQuery tooltips). * * @since 2.2.5 * @date 2020-12-18T1113+0100 */ // jQuery tooltips: if ( ! self::$a_bool_AlternativeTooltipsEnabled) { // tooltip position: $l_int_MaxWidth = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_MOUSE_OVER_BOX_MAX_WIDTH); if (!empty($l_int_MaxWidth) && intval($l_int_MaxWidth) > 0) { printf(" max-width: %dpx !important;", $l_int_MaxWidth); } echo "}\r\n"; // alternative tooltips: } else { echo "}\r\n"; // dimensions: $l_int_AlternativeTooltipWidth = 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_AlternativeTooltipWidth . 'px;'; // set also as max-width wrt short tooltip shrinking: echo " max-width: " . $l_int_AlternativeTooltipWidth . 'px;'; // position: $l_str_AlternativePosition = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_ALTERNATIVE_MOUSE_OVER_BOX_POSITION); $l_int_OffsetX = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_ALTERNATIVE_MOUSE_OVER_BOX_OFFSET_X)); if ($l_str_AlternativePosition == 'top left' || $l_str_AlternativePosition == 'bottom left') { echo ' right: ' . ( !empty($l_int_OffsetX) ? $l_int_OffsetX : 0) . 'px;'; } else { echo ' left: ' . ( !empty($l_int_OffsetX) ? $l_int_OffsetX : 0) . 'px;'; } $l_int_OffsetY = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_ALTERNATIVE_MOUSE_OVER_BOX_OFFSET_Y)); if ($l_str_AlternativePosition == 'top left' || $l_str_AlternativePosition == 'top right') { echo ' bottom: ' . ( !empty($l_int_OffsetY) ? $l_int_OffsetY : 0) . 'px;'; } else { echo ' top: ' . ( !empty($l_int_OffsetY) ? $l_int_OffsetY : 0) . 'px;'; } echo "}\r\n"; // timing: // jQuery tooltip timing is in templates/public/tooltip.html, filled in after line 690 below. echo ' .footnote_tooltip.shown {'; $l_int_FadeInDelay = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_IN_DELAY )); $l_int_FadeInDuration = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_IN_DURATION )); $l_int_FadeInDelay = !empty($l_int_FadeInDelay ) ? $l_int_FadeInDelay : '0'; $l_int_FadeInDuration = !empty($l_int_FadeInDuration ) ? $l_int_FadeInDuration : '0'; echo " transition-delay: $l_int_FadeInDelay" . 'ms;'; echo " transition-duration: $l_int_FadeInDuration" . 'ms;'; echo '} .footnote_tooltip.hidden {'; $l_int_FadeOutDelay = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_OUT_DELAY )); $l_int_FadeOutDuration = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_OUT_DURATION)); $l_int_FadeOutDelay = !empty($l_int_FadeOutDelay ) ? $l_int_FadeOutDelay : '0'; $l_int_FadeOutDuration = !empty($l_int_FadeOutDuration ) ? $l_int_FadeOutDuration : '0'; echo " transition-delay: $l_int_FadeOutDelay" . 'ms;'; echo " transition-duration: $l_int_FadeOutDuration" . 'ms;'; echo "}\r\n"; } } /** * Custom CSS * * - Bugfix: Custom CSS: insert new CSS in the public page header element after existing CSS. * * @since 2.2.3 * @date 2020-12-15T1128+0100 * * Set custom CSS to override settings, not conversely. * Legacy Custom CSS is used until it’s set to disappear after dashboard tab migration. */ if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_CUSTOM_CSS_LEGACY_ENABLE))) { echo MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_CUSTOM_CSS); echo "\r\n"; } echo MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_CUSTOM_CSS_NEW); // insert end tag without switching out of PHP: echo "\r\n</style>\r\n"; /** * Alternative tooltip implementation relying on plain JS and CSS transitions. * * - Bugfix: Tooltips: optional alternative JS implementation with CSS transitions to fix configuration-related outage, thanks to @andreasra feedback. * * @since 2.1.1 * * @reporter @andreasra * @link https://wordpress.org/support/topic/footnotes-appearing-in-header/page/2/#post-13632566 * * The script for alternative tooltips is printed formatted, not minified: */ if ( self::$a_bool_AlternativeTooltipsEnabled ) { ?> <script content="text/javascript"> function footnoteTooltipShow(footnoteTooltipId) { document.getElementById(footnoteTooltipId).classList.remove('hidden'); document.getElementById(footnoteTooltipId).classList.add('shown'); } function footnoteTooltipHide(footnoteTooltipId) { document.getElementById(footnoteTooltipId).classList.remove('shown'); document.getElementById(footnoteTooltipId).classList.add('hidden'); } </script> <?php }; } /** * Displays the 'LOVE FOOTNOTES' slug if enabled. * * @author Stefan Herndler * @since 1.5.0 * * * @since 2.2.0 more options 2020-12-11T0506+0100 */ public function wp_footer() { if (MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_POSITION) == "footer") { echo $this->ReferenceContainer(); } // get setting for love and share this plugin $l_str_LoveMeIndex = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_LOVE); // check if the admin allows to add a link to the footer if (empty($l_str_LoveMeIndex) || strtolower($l_str_LoveMeIndex) == "no" || !self::$a_bool_AllowLoveMe) { return; } // set a hyperlink to the word "footnotes" in the Love slug $l_str_LinkedName = sprintf('<a href="https://wordpress.org/plugins/footnotes/" target="_blank" style="text-decoration:none;">%s</a>', MCI_Footnotes_Config::C_STR_PLUGIN_PUBLIC_NAME); // get random love me text if (strtolower($l_str_LoveMeIndex) == "random") { $l_str_LoveMeIndex = "text-" . rand(1,7); } switch ($l_str_LoveMeIndex) { // options named wrt backcompat, simplest is default: case "text-1": $l_str_LoveMeText = sprintf(__('I %2$s %1$s', MCI_Footnotes_Config::C_STR_PLUGIN_NAME), $l_str_LinkedName, MCI_Footnotes_Config::C_STR_LOVE_SYMBOL); break; case "text-2": $l_str_LoveMeText = sprintf(__('This website uses the awesome %s plugin.', MCI_Footnotes_Config::C_STR_PLUGIN_NAME), $l_str_LinkedName); break; case "text-4": $l_str_LoveMeText = sprintf('%s %s', $l_str_LinkedName, MCI_Footnotes_Config::C_STR_LOVE_SYMBOL); break; case "text-5": $l_str_LoveMeText = sprintf('%s %s', MCI_Footnotes_Config::C_STR_LOVE_SYMBOL, $l_str_LinkedName); break; case "text-6": $l_str_LoveMeText = sprintf(__('This website uses %s.', MCI_Footnotes_Config::C_STR_PLUGIN_NAME), $l_str_LinkedName); break; case "text-7": $l_str_LoveMeText = sprintf(__('This website uses the %s plugin.', MCI_Footnotes_Config::C_STR_PLUGIN_NAME), $l_str_LinkedName); break; case "text-3": default: $l_str_LoveMeText = sprintf('%s', $l_str_LinkedName); break; } echo sprintf('<div style="text-align:center; color:#acacac;">%s</div>', $l_str_LoveMeText); } /** * Replaces footnotes in the post/page title. * * @author Stefan Herndler * @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. * * @author Stefan Herndler * @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’s the blog engine processing the post for display and appending the refs. */ self::$a_arr_Footnotes = array(); // appends the reference container if set to "post_end" return $this->exec($p_str_Content, MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_POSITION) == "post_end" ? true : false); } /** * Replaces footnotes in the excerpt of the current page/post. * * @author Stefan Herndler * @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::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_IN_EXCERPT))); } /** * Replaces footnotes in the widget title. * * @author Stefan Herndler * @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. * * @author Stefan Herndler * @since 1.5.0 * @param string $p_str_Content Widget content. * @return string Content with replaced footnotes. */ public function widget_text($p_str_Content) { // appends the reference container if set to "post_end" return $this->exec($p_str_Content, MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_POSITION) == "post_end" ? true : false); } /** * Replaces footnotes in each Content var of the current Post object. * * @author Stefan Herndler * @since 1.5.4 * @param array|WP_Post $p_mixed_Posts */ public function the_post(&$p_mixed_Posts) { // single WP_Post object received if (!is_array($p_mixed_Posts)) { $p_mixed_Posts = $this->replacePostObject($p_mixed_Posts); return; } // array of WP_Post objects received for($l_int_Index = 0; $l_int_Index < count($p_mixed_Posts); $l_int_Index++) { $p_mixed_Posts[$l_int_Index] = $this->replacePostObject($p_mixed_Posts[$l_int_Index]); } } /** * Replace all Footnotes in a WP_Post object. * * @author Stefan Herndler * @since 1.5.6 * @param WP_Post $p_obj_Post * @return WP_Post */ private function replacePostObject($p_obj_Post) { //MCI_Footnotes_Convert::debug($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. * * @author Stefan Herndler * @since 1.5.0 * @param string $p_str_Content Any string that may contain footnotes to be replaced. * @param bool $p_bool_OutputReferences Appends the Reference Container to the output if set to true, default true. * @param bool $p_bool_HideFootnotesText Hide footnotes found in the string. * @return string * * * @since 2.2.0 Adding: Reference container: support for custom position shortcode, thanks to @hamshe issue report. * @since 2.2.5 Bugfix: Reference container: delete position shortcode if unused because position may be widget or footer, thanks to @hamshe bug report. */ public function exec($p_str_Content, $p_bool_OutputReferences = false, $p_bool_HideFootnotesText = false) { // replace all footnotes in the content, settings are converted to html characters $p_str_Content = $this->search($p_str_Content, true, $p_bool_HideFootnotesText); // replace all footnotes in the content, settings are NOT converted to html characters $p_str_Content = $this->search($p_str_Content, false, $p_bool_HideFootnotesText); /** * Reference container customized positioning through shortcode * * - Adding: Reference container: support for custom position shortcode, thanks to @hamshe issue report. * * @since 2.2.0 * @date 2020-12-13T2057+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 2020-12-18T1434+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_ReferenceContainerPositionShortcode = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_POSITION_SHORTCODE); if ( empty( $l_str_ReferenceContainerPositionShortcode ) ) { $l_str_ReferenceContainerPositionShortcode = '[[references]]'; } if ( $p_bool_OutputReferences ) { if ( strpos( $p_str_Content, $l_str_ReferenceContainerPositionShortcode ) !== false ) { $p_str_Content = str_replace( $l_str_ReferenceContainerPositionShortcode, $this->ReferenceContainer(), $p_str_Content ); } else { $p_str_Content .= $this->ReferenceContainer(); } // increment the container ID: self::$a_int_ReferenceContainerId++; } // delete position shortcode should any remain: $p_str_Content = str_replace( $l_str_ReferenceContainerPositionShortcode, '', $p_str_Content ); // take a look if the LOVE ME slug should NOT be displayed on this page/post, remove the short code if found if (strpos($p_str_Content, MCI_Footnotes_Config::C_STR_NO_LOVE_SLUG) !== false) { self::$a_bool_AllowLoveMe = 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. * * @author Stefan Herndler * @since 1.5.0 * @param string $p_str_Content Content to be searched for footnotes. * @param bool $p_bool_ConvertHtmlChars html encode settings, default true. * @param bool $p_bool_HideFootnotesText Hide footnotes found in the string. * @return string * * @since 2.0.0 various. * @since 2.4.0 Adding: Footnote delimiters: syntax validation for balanced footnote start and end tag short codes. * @since 2.5.0 Bugfix: Footnote delimiters: Syntax validation: exclude certain cases involving scripts, thanks to @andreasra bug report. * @since 2.5.0 Bugfix: Footnote delimiters: Syntax validation: complete message with hint about setting, thanks to @andreasra bug report. * @since 2.5.0 Bugfix: Footnote delimiters: Syntax validation: limit length of quoted string to 300 characters, thanks to @andreasra bug report. */ public function search($p_str_Content, $p_bool_ConvertHtmlChars, $p_bool_HideFootnotesText) { // post ID to make everything unique wrt infinite scroll and archive view self::$a_int_PostId = get_the_id(); // contains the index for the next footnote on this page $l_int_FootnoteIndex = count(self::$a_arr_Footnotes) + 1; // contains the starting position for the lookup of a footnote $l_int_PosStart = 0; // get start and end tag for the footnotes short code $l_str_StartingTag = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_SHORT_CODE_START); $l_str_EndingTag = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_SHORT_CODE_END); if ($l_str_StartingTag == "userdefined" || $l_str_EndingTag == "userdefined") { $l_str_StartingTag = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_SHORT_CODE_START_USER_DEFINED); $l_str_EndingTag = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_SHORT_CODE_END_USER_DEFINED); } // decode html special chars if ($p_bool_ConvertHtmlChars) { $l_str_StartingTag = htmlspecialchars($l_str_StartingTag); $l_str_EndingTag = htmlspecialchars($l_str_EndingTag); } // if footnotes short code is empty, return the content without changes if (empty($l_str_StartingTag) || empty($l_str_EndingTag)) { 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 2021-01-07T0824+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::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTE_SHORTCODE_SYNTAX_VALIDATION_ENABLE))) { // make shortcodes conform to regex syntax: $l_str_StartTagRegex = preg_replace( '#([\(\)\{\}\[\]\*\.\?\!])#', '\\\\$1', $l_str_StartingTag ); $l_str_EndTagRegex = preg_replace( '#([\(\)\{\}\[\]\*\.\?\!])#', '\\\\$1', $l_str_EndingTag ); // apply different regex depending on whether start shortcode is double/triple opening parenthesis: if ( $l_str_StartingTag == '((' || $l_str_StartingTag == '(((' ) { // this prevents from catching a script containing e.g. a double opening parenthesis: $l_str_ValidationRegex = '#' . $l_str_StartTagRegex . '(((?!' . $l_str_EndTagRegex . ')[^\{\}])*?)(' . $l_str_StartTagRegex . '|$)#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_ValidationRegex = '#' . $l_str_StartTagRegex . '(((?!' . $l_str_EndTagRegex . ').)*?)(' . $l_str_StartTagRegex . '|$)#s'; } // check syntax and get error locations: preg_match( $l_str_ValidationRegex, $p_str_Content, $p_arr_ErrorLocation ); if ( empty( $p_arr_ErrorLocation ) ) { self::$a_bool_SyntaxErrorFlag = false; } // prevent generating and inserting the warning multiple times: if ( self::$a_bool_SyntaxErrorFlag ) { // get plain text string for error location: $l_str_ErrorSpotString = strip_tags( $p_arr_ErrorLocation[1] ); // limit string length to 300 characters: if ( strlen( $l_str_ErrorSpotString ) > 300 ) { $l_str_ErrorSpotString = substr( $l_str_ErrorSpotString, 0, 299 ) . '…'; } // compose warning box: $l_str_SyntaxErrorWarning = '<div class="footnotes_validation_error"><p>'; $l_str_SyntaxErrorWarning .= __("WARNING: unbalanced footnote start tag short code found.", MCI_Footnotes_Config::C_STR_PLUGIN_NAME); $l_str_SyntaxErrorWarning .= '</p><p>'; // syntax validation setting in the dashboard under the General settings tab: $l_str_SyntaxErrorWarning .= sprintf( __("If this warning is irrelevant, please disable the syntax validation feature in the dashboard under %s > %s > %s.", MCI_Footnotes_Config::C_STR_PLUGIN_NAME), __("General settings", MCI_Footnotes_Config::C_STR_PLUGIN_NAME), __("Footnote start and end short codes", MCI_Footnotes_Config::C_STR_PLUGIN_NAME), __("Check for balanced shortcodes", MCI_Footnotes_Config::C_STR_PLUGIN_NAME) ); $l_str_SyntaxErrorWarning .= '</p><p>'; $l_str_SyntaxErrorWarning .= __("Unbalanced start tag short code found before:", MCI_Footnotes_Config::C_STR_PLUGIN_NAME); $l_str_SyntaxErrorWarning .= '</p><p>“'; $l_str_SyntaxErrorWarning .= $l_str_ErrorSpotString; $l_str_SyntaxErrorWarning .= '”</p></div>'; // prepend the warning box to the content: $p_str_Content = $l_str_SyntaxErrorWarning . $p_str_Content; // checked, set flag to false to prevent duplicate warning: self::$a_bool_SyntaxErrorFlag = false; return $p_str_Content; } } // load referrer templates if footnotes text not hidden: if (!$p_bool_HideFootnotesText) { // load footnote referrer template file: if (self::$a_bool_AlternativeTooltipsEnabled) { $l_obj_Template = new MCI_Footnotes_Template(MCI_Footnotes_Template::C_STR_PUBLIC, "footnote-alternative"); } else { $l_obj_Template = new MCI_Footnotes_Template(MCI_Footnotes_Template::C_STR_PUBLIC, "footnote"); } /** * Call Boolean again for robustness when priority levels don’t match any longer. * * - Bugfix: Tooltips: fix display in Popup Maker popups by correcting a coding error. * * @since 2.5.4 * @see self::add_filter('pum_popup_content', array($this, "the_content"), $l_int_TheContentPriority) */ self::$a_bool_TooltipsEnabled = MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_MOUSE_OVER_BOX_ENABLED)); self::$a_bool_AlternativeTooltipsEnabled = MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_MOUSE_OVER_BOX_ALTERNATIVE)); // load tooltip inline script if jQuery tooltips are enabled: if (self::$a_bool_TooltipsEnabled && ! self::$a_bool_AlternativeTooltipsEnabled) { $l_obj_TemplateTooltip = new MCI_Footnotes_Template(MCI_Footnotes_Template::C_STR_PUBLIC, "tooltip"); } } else { $l_obj_Template = null; $l_obj_TemplateTooltip = null; } // search footnotes short codes in the content do { // get first occurrence of the footnote start tag short code: $i_int_LenContent = strlen($p_str_Content); if ($l_int_PosStart > $i_int_LenContent) $l_int_PosStart = $i_int_LenContent; $l_int_PosStart = strpos($p_str_Content, $l_str_StartingTag, $l_int_PosStart); // no short code found, stop here if ($l_int_PosStart === false) { break; } // get first occurrence of the footnote end tag short code: $l_int_PosEnd = strpos($p_str_Content, $l_str_EndingTag, $l_int_PosStart); // no short code found, stop here if ($l_int_PosEnd === false) { break; } // calculate the length of the footnote $l_int_Length = $l_int_PosEnd - $l_int_PosStart; // get footnote text $l_str_FootnoteText = substr($p_str_Content, $l_int_PosStart + strlen($l_str_StartingTag), $l_int_Length - strlen($l_str_StartingTag)); // get tooltip text if present: self::$a_str_TooltipShortcode = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_TOOLTIP_EXCERPT_DELIMITER); self::$a_int_TooltipShortcodeLength = strlen( self::$a_str_TooltipShortcode ); $l_int_TooltipTextLength = strpos( $l_str_FootnoteText, self::$a_str_TooltipShortcode ); $l_bool_HasTooltipText = $l_int_TooltipTextLength === false ? false : true; if ( $l_bool_HasTooltipText ) { $l_str_TooltipText = substr( $l_str_FootnoteText, 0, $l_int_TooltipTextLength ); } else { $l_str_TooltipText = ''; } /** * 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 2020-11-25T0837+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 2020-12-09T1921+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 2020-12-09T1606+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 2020-12-23T0409+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 2020-12-23T1046+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 2020-12-23T1107+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 2020-12-24T1956+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 2020-12-25T1251+0100 * * @since 2.2.10 Bugfix: Reference container, tooltips: URL wrap: support also file transfer protocol URLs. * @date 2020-12-25T2220+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 3rd 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::toBool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_BOOL_FOOTNOTE_URL_WRAP_ENABLED ) ) ) { $l_str_FootnoteText = preg_replace( '#(?<![-\w\.!~\*\'\(\);]=[\'"])(?<![-\w\.!~\*\'\(\);]=[\'"] )(?<![-\w\.!~\*\'\(\);]=[\'"] )(?<![-\w\.!~\*\'\(\);]=)(?<!/)((ht|f)tps?://[^\\s<]+)#', '<span class="footnote_url_wrap">$1</span>', $l_str_FootnoteText ); } // Text to be displayed instead of the footnote $l_str_FootnoteReplaceText = ""; // whether hard links are enabled: if (self::$a_bool_HardLinksEnable) { // get the configurable parts: self::$a_str_ReferrerLinkSlug = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_REFERRER_FRAGMENT_ID_SLUG); self::$a_str_FootnoteLinkSlug = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTE_FRAGMENT_ID_SLUG); self::$a_str_LinkIdsSeparator = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_HARD_LINK_IDS_SEPARATOR); // streamline ID concatenation: self::$a_str_PostContainerIdCompound = self::$a_str_LinkIdsSeparator; self::$a_str_PostContainerIdCompound .= self::$a_int_PostId; self::$a_str_PostContainerIdCompound .= self::$a_str_LinkIdsSeparator; self::$a_str_PostContainerIdCompound .= self::$a_int_ReferenceContainerId; self::$a_str_PostContainerIdCompound .= self::$a_str_LinkIdsSeparator; } // display the footnote referrers and the tooltips: if (!$p_bool_HideFootnotesText) { $l_int_Index = MCI_Footnotes_Convert::Index($l_int_FootnoteIndex, MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_COUNTER_STYLE)); // display only a truncated footnote text if option enabled: $l_bool_EnableExcerpt = MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_MOUSE_OVER_BOX_EXCERPT_ENABLED)); $l_int_MaxLength = 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_ExcerptText = $l_str_FootnoteText; /** * Tooltip truncation * * - Adding: Tooltips: Read-on button: Label: configurable instead of localizable, thanks to @rovanov example provision. * * @since 2.1.0 * @date 2020-11-08T2146+0100 * * @reporter @rovanov * @link https://wordpress.org/support/topic/offset-x-axis-and-offset-y-axis-does-not-working/ * * If the tooltip truncation option is enabled, it’s done based on character count, * and a trailing incomplete word is cropped. * This is equivalent to the WordPress default excerpt generation, i.e. without a * custom excerpt and without a delimiter. But WordPress does word count, usually 55. */ if (self::$a_bool_TooltipsEnabled && $l_bool_EnableExcerpt) { $l_str_DummyText = strip_tags($l_str_FootnoteText); if (is_int($l_int_MaxLength) && strlen($l_str_DummyText) > $l_int_MaxLength) { $l_str_ExcerptText = substr($l_str_DummyText, 0, $l_int_MaxLength); $l_str_ExcerptText = substr($l_str_ExcerptText, 0, strrpos($l_str_ExcerptText, ' ')); $l_str_ExcerptText .= ' … <'; $l_str_ExcerptText .= self::$a_bool_HardLinksEnable ? 'a' : 'span'; $l_str_ExcerptText .= ' class="footnote_tooltip_continue" '; $l_str_ExcerptText .= 'onclick="footnote_moveToAnchor_' . self::$a_int_PostId; $l_str_ExcerptText .= '_' . self::$a_int_ReferenceContainerId; $l_str_ExcerptText .= '(\'footnote_plugin_reference_' . self::$a_int_PostId; $l_str_ExcerptText .= '_' . self::$a_int_ReferenceContainerId; $l_str_ExcerptText .= "_$l_int_Index');\""; // if enabled, add the hard link fragment ID: if (self::$a_bool_HardLinksEnable) { $l_str_ExcerptText .= ' href="#'; $l_str_ExcerptText .= self::$a_str_FootnoteLinkSlug; $l_str_ExcerptText .= self::$a_str_PostContainerIdCompound; $l_str_ExcerptText .= $l_int_Index; $l_str_ExcerptText .= '"'; } $l_str_ExcerptText .= '>'; /** * 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 2020-11-08T2146+0100 * * @reporter @rovanov * @link https://wordpress.org/support/topic/offset-x-axis-and-offset-y-axis-does-not-working/ */ $l_str_ExcerptText .= MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_TOOLTIP_READON_LABEL); $l_str_ExcerptText .= self::$a_bool_HardLinksEnable ? '</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::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_REFERRER_SUPERSCRIPT_TAGS))) { $l_str_SupSpan = 'sup'; } else { $l_str_SupSpan = 'span'; } // whether hard links are enabled: if (self::$a_bool_HardLinksEnable) { self::$a_str_LinkSpan = 'a'; self::$a_str_LinkCloseTag = '</a>'; // self::$a_str_LinkOpenTag will be defined as needed // compose hyperlink address (leading space is in template): $l_str_FootnoteLinkArgument = 'href="#'; $l_str_FootnoteLinkArgument .= self::$a_str_FootnoteLinkSlug; $l_str_FootnoteLinkArgument .= self::$a_str_PostContainerIdCompound; $l_str_FootnoteLinkArgument .= $l_int_Index; $l_str_FootnoteLinkArgument .= '" 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_ReferrerAnchorElement = '<span class="footnote_referrer_base"><span id="'; $l_str_ReferrerAnchorElement .= self::$a_str_ReferrerLinkSlug; $l_str_ReferrerAnchorElement .= self::$a_str_PostContainerIdCompound; $l_str_ReferrerAnchorElement .= $l_int_Index; $l_str_ReferrerAnchorElement .= '" 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 2021-01-04T1622+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_FootnoteLinkArgument = ''; $l_str_ReferrerAnchorElement = ''; // The link element is set independently as it may be needed for styling: if ( MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_LINK_ELEMENT_ENABLED)) ) { self::$a_str_LinkSpan = 'a'; self::$a_str_LinkOpenTag = '<a>'; self::$a_str_LinkCloseTag = '</a>'; } } // determine tooltip content: if ( self::$a_bool_TooltipsEnabled ) { $l_str_TooltipContent = $l_bool_HasTooltipText ? $l_str_TooltipText : $l_str_ExcerptText; } else { $l_str_TooltipContent = ''; } /** * Determine shrink width if alternative tooltips are enabled. * * @since 2.5.6 */ $l_str_TooltipStyle = ''; if ( self::$a_bool_AlternativeTooltipsEnabled && self::$a_bool_TooltipsEnabled ) { $l_int_TooltipLength = strlen( strip_tags( $l_str_TooltipContent ) ); if ( $l_int_TooltipLength < 70 ) { $l_str_TooltipStyle = ' style="width: '; $l_str_TooltipStyle .= ( $l_int_TooltipLength * .7 ); $l_str_TooltipStyle .= 'em;"'; } } // fill in 'templates/public/footnote.html': $l_obj_Template->replace( array( "link-span" => self::$a_str_LinkSpan, "post_id" => self::$a_int_PostId, "container_id" => self::$a_int_ReferenceContainerId, "note_id" => $l_int_Index, "hard-link" => $l_str_FootnoteLinkArgument, "sup-span" => $l_str_SupSpan, "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_ReferrerAnchorElement, "style" => $l_str_TooltipStyle, "text" => $l_str_TooltipContent, ) ); $l_str_FootnoteReplaceText = $l_obj_Template->getContent(); // reset the template $l_obj_Template->reload(); // if standard tooltips are enabled but alternative are not: if (self::$a_bool_TooltipsEnabled && ! self::$a_bool_AlternativeTooltipsEnabled) { $l_int_OffsetY = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_MOUSE_OVER_BOX_OFFSET_Y)); $l_int_OffsetX = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_MOUSE_OVER_BOX_OFFSET_X)); $l_int_FadeInDelay = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_IN_DELAY )); $l_int_FadeInDuration = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_IN_DURATION )); $l_int_FadeOutDelay = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_OUT_DELAY )); $l_int_FadeOutDuration = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_OUT_DURATION)); // fill in 'templates/public/tooltip.html': $l_obj_TemplateTooltip->replace( array( "post_id" => self::$a_int_PostId, "container_id" => self::$a_int_ReferenceContainerId, "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_OffsetY) ? $l_int_OffsetY : 0, "offset-x" => !empty($l_int_OffsetX) ? $l_int_OffsetX : 0, "fade-in-delay" => !empty($l_int_FadeInDelay ) ? $l_int_FadeInDelay : 0, "fade-in-duration" => !empty($l_int_FadeInDuration ) ? $l_int_FadeInDuration : 0, "fade-out-delay" => !empty($l_int_FadeOutDelay ) ? $l_int_FadeOutDelay : 0, "fade-out-duration" => !empty($l_int_FadeOutDuration) ? $l_int_FadeOutDuration : 0, ) ); $l_str_FootnoteReplaceText .= $l_obj_TemplateTooltip->getContent(); $l_obj_TemplateTooltip->reload(); } } // replace the footnote with the template $p_str_Content = substr_replace($p_str_Content, $l_str_FootnoteReplaceText, $l_int_PosStart, $l_int_Length + strlen($l_str_EndingTag)); // add footnote only if not empty if (!empty($l_str_FootnoteText)) { // set footnote to the output box at the end self::$a_arr_Footnotes[] = $l_str_FootnoteText; // increase footnote index $l_int_FootnoteIndex++; } /** * 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 2016-06-29T0054+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’s 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_PosStart += $l_int_Length + strlen($l_str_EndingTag); } while (true); // return content return $p_str_Content; } /** * Generates the reference container. * * @author Stefan Herndler * @since 1.5.0 * @return string * * @since 2.0.0 Update: remove backlink symbol along with column 2 of the reference container * @since 2.0.3 Bugfix: prepend an arrow on user request * @since 2.0.6 Bugfix: Reference container: fix line breaking behavior in footnote number clusters. * @since 2.0.4 Bugfix: restore the arrow select and backlink symbol input settings * @since 2.1.1 Bugfix: Referrers, reference container: Combining identical footnotes: fix dead links and ensure referrer-backlink bijectivity, thanks to @happyches bug report. * @since 2.1.1 Bugfix: Reference container: Backlink symbol: make optional, not suggest configuring it to invisible, thanks to @spaceling feedback. */ public function ReferenceContainer() { // no footnotes have been replaced on this page: if (empty(self::$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::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_REFERENCE_CONTAINER_BACKLINK_SYMBOL_ENABLE))) { // get html arrow $l_str_Arrow = MCI_Footnotes_Convert::getArrow(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_HYPERLINK_ARROW)); // set html arrow to the first one if invalid index defined if (is_array($l_str_Arrow)) { $l_str_Arrow = MCI_Footnotes_Convert::getArrow(0); } // get user defined arrow $l_str_ArrowUserDefined = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_HYPERLINK_ARROW_USER_DEFINED); if (!empty($l_str_ArrowUserDefined)) { $l_str_Arrow = $l_str_ArrowUserDefined; } // wrap the arrow in a @media print { display:hidden } span: $l_str_FootnoteArrow = '<span class="footnote_index_arrow">'; $l_str_FootnoteArrow .= $l_str_Arrow . '</span>'; } else { // If the backlink symbol isn’t enabled, set it to empty: $l_str_Arrow = ''; $l_str_FootnoteArrow = ''; } /** * 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 2020-11-28T1048+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::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_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: $l_str_SeparatorOption = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_BACKLINKS_SEPARATOR_OPTION); switch ($l_str_SeparatorOption) { 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::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_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: $l_str_TerminatorOption = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_BACKLINKS_TERMINATOR_OPTION); switch ($l_str_TerminatorOption) { 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 2020-11-28T1049+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_LineBreak = MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_BACKLINKS_LINE_BREAKS_ENABLED)) ? '<br />' : ' '; /** * 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 2020-11-16T2024+0100 */ // when combining identical footnotes is turned on, another template is needed: if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_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::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_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::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_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 2020-11-16T2024+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 2020-11-26T1633+0100 */ $l_bool_SymbolSwitch = MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_REFERENCE_CONTAINER_BACKLINK_SYMBOL_SWITCH)); // loop through all footnotes found in the page for ($l_int_Index = 0; $l_int_Index < count(self::$a_arr_Footnotes); $l_int_Index++) { // get footnote text $l_str_FootnoteText = self::$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_FootnoteText)) { continue; } // generate content of footnote index cell $l_int_FirstFootnoteIndex = ($l_int_Index + 1); // get the footnote index string and // keep supporting legacy index placeholder: $l_str_FootnoteId = MCI_Footnotes_Convert::Index(($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: $l_str_HardLinkAddress = ''; if (self::$a_bool_HardLinksEnable) { /** * 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::toBool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_BACKLINK_TOOLTIP_ENABLE ) ) ) { $l_str_UseBackbuttonHint = ' title="'; $l_str_UseBackbuttonHint .= MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_BACKLINK_TOOLTIP_TEXT); $l_str_UseBackbuttonHint .= '"'; } else { $l_str_UseBackbuttonHint = ''; } /** * 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_FootnoteAnchorElement = '<span class="footnote_item_base"><span id="'; $l_str_FootnoteAnchorElement .= self::$a_str_FootnoteLinkSlug; $l_str_FootnoteAnchorElement .= self::$a_str_PostContainerIdCompound; $l_str_FootnoteAnchorElement .= $l_str_FootnoteId; $l_str_FootnoteAnchorElement .= '" class="footnote_item_anchor"></span></span>'; // compose optional hard link address: $l_str_HardLinkAddress = ' href="#'; $l_str_HardLinkAddress .= self::$a_str_ReferrerLinkSlug; $l_str_HardLinkAddress .= self::$a_str_PostContainerIdCompound; $l_str_HardLinkAddress .= $l_str_FootnoteId . '"'; $l_str_HardLinkAddress .= $l_str_UseBackbuttonHint; // compose optional opening link tag with optional hard link, mandatory for instance: self::$a_str_LinkOpenTag = '<a' . $l_str_HardLinkAddress; self::$a_str_LinkOpenTag = ' class="footnote_hard_back_link">'; } else { // define as empty, too: $l_str_FootnoteAnchorElement = ''; } /** * 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 2020-11-14T2233+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_FlagCombined = false; // set otherwise unused variables as empty to avoid screwing up the placeholder array: $l_str_BacklinkEvent = ''; $l_str_FootnoteBacklinks = ''; $l_str_FootnoteReference = ''; if ( MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_COMBINE_IDENTICAL_FOOTNOTES))) { // ID, optional hard link address, and class: $l_str_FootnoteReference = '<' . self::$a_str_LinkSpan; $l_str_FootnoteReference .= ' id="footnote_plugin_reference_'; $l_str_FootnoteReference .= self::$a_int_PostId; $l_str_FootnoteReference .= '_' . self::$a_int_ReferenceContainerId; $l_str_FootnoteReference .= "_$l_str_FootnoteId\""; if (self::$a_bool_HardLinksEnable) { $l_str_FootnoteReference .= ' href="#'; $l_str_FootnoteReference .= self::$a_str_ReferrerLinkSlug; $l_str_FootnoteReference .= self::$a_str_PostContainerIdCompound; $l_str_FootnoteReference .= $l_str_FootnoteId . '"'; $l_str_FootnoteReference .= $l_str_UseBackbuttonHint; } $l_str_FootnoteReference .= ' class="footnote_backlink"'; // the click event goes in the table cell if footnote remains single: $l_str_BacklinkEvent = ' onclick="footnote_moveToAnchor_'; $l_str_BacklinkEvent .= self::$a_int_PostId; $l_str_BacklinkEvent .= '_' . self::$a_int_ReferenceContainerId; $l_str_BacklinkEvent .= "('footnote_plugin_tooltip_"; $l_str_BacklinkEvent .= self::$a_int_PostId; $l_str_BacklinkEvent .= '_' . self::$a_int_ReferenceContainerId; $l_str_BacklinkEvent .= "_$l_str_FootnoteId');\""; // the dedicated template enumerating backlinks uses another variable: $l_str_FootnoteBacklinks = $l_str_FootnoteReference; // append the click event right to the backlink item for enumerations; // else it goes in the table cell: $l_str_FootnoteBacklinks .= $l_str_BacklinkEvent . '>'; $l_str_FootnoteReference .= '>'; // append the optional offset anchor for hard links: if (self::$a_bool_HardLinksEnable) { $l_str_FootnoteReference .= $l_str_FootnoteAnchorElement; $l_str_FootnoteBacklinks .= $l_str_FootnoteAnchorElement; } // continue both single note and notes cluster, depending on switch option status: if ($l_bool_SymbolSwitch) { $l_str_FootnoteReference .= "$l_str_FootnoteId$l_str_FootnoteArrow"; $l_str_FootnoteBacklinks .= "$l_str_FootnoteId$l_str_FootnoteArrow"; } else { $l_str_FootnoteReference .= "$l_str_FootnoteArrow$l_str_FootnoteId"; $l_str_FootnoteBacklinks .= "$l_str_FootnoteArrow$l_str_FootnoteId"; } // If that is the only footnote with this text, we’re almost done. // check if it isn't the last footnote in the array: if ($l_int_FirstFootnoteIndex < count(self::$a_arr_Footnotes)) { // get all footnotes that haven't passed yet: for ($l_int_CheckIndex = $l_int_FirstFootnoteIndex; $l_int_CheckIndex < count(self::$a_arr_Footnotes); $l_int_CheckIndex++) { // check if a further footnote is the same as the actual one: if ($l_str_FootnoteText == self::$a_arr_Footnotes[$l_int_CheckIndex]) { // if so, set the further footnote as empty so it won't be displayed later: self::$a_arr_Footnotes[$l_int_CheckIndex] = ""; // set the flag to true for the combined status: $l_bool_FlagCombined = true; // update the footnote ID: $l_str_FootnoteId = MCI_Footnotes_Convert::Index(($l_int_CheckIndex + 1), MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_COUNTER_STYLE)); // resume composing the backlinks enumeration: $l_str_FootnoteBacklinks .= "$l_str_Separator</"; $l_str_FootnoteBacklinks .= self::$a_str_LinkSpan . '>'; $l_str_FootnoteBacklinks .= $l_str_LineBreak; $l_str_FootnoteBacklinks .= '<' . self::$a_str_LinkSpan; $l_str_FootnoteBacklinks .= ' id="footnote_plugin_reference_'; $l_str_FootnoteBacklinks .= self::$a_int_PostId; $l_str_FootnoteBacklinks .= '_' . self::$a_int_ReferenceContainerId; $l_str_FootnoteBacklinks .= "_$l_str_FootnoteId\""; // insert the optional hard link address: if (self::$a_bool_HardLinksEnable) { $l_str_FootnoteBacklinks .= ' href="#'; $l_str_FootnoteBacklinks .= self::$a_str_ReferrerLinkSlug; $l_str_FootnoteBacklinks .= self::$a_str_PostContainerIdCompound; $l_str_FootnoteBacklinks .= $l_str_FootnoteId . '"'; $l_str_FootnoteBacklinks .= $l_str_UseBackbuttonHint; } $l_str_FootnoteBacklinks .= ' class="footnote_backlink"'; $l_str_FootnoteBacklinks .= ' onclick="footnote_moveToAnchor_'; $l_str_FootnoteBacklinks .= self::$a_int_PostId; $l_str_FootnoteBacklinks .= '_' . self::$a_int_ReferenceContainerId; $l_str_FootnoteBacklinks .= "('footnote_plugin_tooltip_"; $l_str_FootnoteBacklinks .= self::$a_int_PostId; $l_str_FootnoteBacklinks .= '_' . self::$a_int_ReferenceContainerId; $l_str_FootnoteBacklinks .= "_$l_str_FootnoteId');\">"; // append the offset anchor for optional hard links: if (self::$a_bool_HardLinksEnable) { $l_str_FootnoteBacklinks .= '<span class="footnote_item_base"><span id="'; $l_str_FootnoteBacklinks .= self::$a_str_FootnoteLinkSlug; $l_str_FootnoteBacklinks .= self::$a_str_PostContainerIdCompound; $l_str_FootnoteBacklinks .= $l_str_FootnoteId; $l_str_FootnoteBacklinks .= '" class="footnote_item_anchor"></span></span>'; } $l_str_FootnoteBacklinks .= $l_bool_SymbolSwitch ? '' : $l_str_FootnoteArrow; $l_str_FootnoteBacklinks .= $l_str_FootnoteId; $l_str_FootnoteBacklinks .= $l_bool_SymbolSwitch ? $l_str_FootnoteArrow : ''; } } } // append terminator and end tag: $l_str_FootnoteReference .= $l_str_Terminator . '</' . self::$a_str_LinkSpan . '>'; $l_str_FootnoteBacklinks .= $l_str_Terminator . '</' . self::$a_str_LinkSpan . '>'; } // line wrapping of URLs already fixed, see above // get reference container item text if tooltip text goes separate: $l_int_TooltipTextLength = strpos( $l_str_FootnoteText, self::$a_str_TooltipShortcode ); $l_bool_HasTooltipText = $l_int_TooltipTextLength === false ? false : true; if ( $l_bool_HasTooltipText ) { $l_str_NotTooltipText = substr( $l_str_FootnoteText, ( $l_int_TooltipTextLength + self::$a_int_TooltipShortcodeLength ) ); self::$a_bool_MirrorTooltipText = MCI_Footnotes_Convert::toBool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_TOOLTIP_EXCERPT_MIRROR_ENABLE ) ); if ( self::$a_bool_MirrorTooltipText ) { $l_str_TooltipText = substr( $l_str_FootnoteText, 0, $l_int_TooltipTextLength ); $l_str_ReferenceTextIntroducer = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_TOOLTIP_EXCERPT_MIRROR_SEPARATOR); $l_str_ReferenceText = $l_str_TooltipText . $l_str_ReferenceTextIntroducer . $l_str_NotTooltipText; } else { $l_str_ReferenceText = $l_str_NotTooltipText; } } else { $l_str_ReferenceText = $l_str_FootnoteText; } // replace all placeholders in table row template: $l_obj_Template->replace( array( // placeholder used in all templates: "text" => $l_str_ReferenceText, // used in standard layout W/O COMBINED FOOTNOTES: "post_id" => self::$a_int_PostId, "container_id" => self::$a_int_ReferenceContainerId, "note_id" => MCI_Footnotes_Convert::Index($l_int_FirstFootnoteIndex, MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_COUNTER_STYLE)), "link-start" => self::$a_str_LinkOpenTag, "link-end" => self::$a_str_LinkCloseTag, "link-span" => self::$a_str_LinkSpan, "terminator" => $l_str_Terminator, "anchor-element" => $l_str_FootnoteAnchorElement, "hard-link" => $l_str_HardLinkAddress, // used in standard layout WITH COMBINED IDENTICALS TURNED ON: "pointer" => $l_bool_FlagCombined ? '' : ' pointer', "event" => $l_bool_FlagCombined ? '' : $l_str_BacklinkEvent, "backlinks" => $l_bool_FlagCombined ? $l_str_FootnoteBacklinks : $l_str_FootnoteReference, // Legacy placeholders for use in legacy layout templates: "arrow" => $l_str_FootnoteArrow, "index" => $l_str_FootnoteId, ) ); $l_str_Body .= $l_obj_Template->getContent(); // extra line breaks for page source readability: $l_str_Body .= "\r\n\r\n"; $l_obj_Template->reload(); } // call again for robustness when priority levels don’t match any longer: self::$a_int_ScrollOffset = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_SCROLL_OFFSET)); // streamline: $l_bool_CollapseDefault = MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_REFERENCE_CONTAINER_COLLAPSE)); /** * Reference container label * * - Bugfix: Reference container: Label: set empty label to U+202F NNBSP for more robustness, thanks to @lukashuggenberg feedback. * * @since 2.4.0 * @date 2021-01-04T0504+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+202F NARROW NO-BREAK SPACE. */ $l_str_ReferenceContainerLabel = 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_ScriptMode = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_REFERENCE_CONTAINER_SCRIPT_MODE); if ( $l_str_ScriptMode == 'jquery' ) { // load 'templates/public/reference-container.html': $l_obj_TemplateContainer = new MCI_Footnotes_Template(MCI_Footnotes_Template::C_STR_PUBLIC, "reference-container"); } else { // load 'templates/public/js-reference-container.html': $l_obj_TemplateContainer = new MCI_Footnotes_Template(MCI_Footnotes_Template::C_STR_PUBLIC, "js-reference-container"); } $l_obj_TemplateContainer->replace( array( "post_id" => self::$a_int_PostId, "container_id" => self::$a_int_ReferenceContainerId, "element" => MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_LABEL_ELEMENT), "name" => empty($l_str_ReferenceContainerLabel) ? ' ' : $l_str_ReferenceContainerLabel, "button-style" => !$l_bool_CollapseDefault ? 'display: none;' : '', "style" => $l_bool_CollapseDefault ? 'display: none;' : '', "content" => $l_str_Body, "scroll-offset" => (self::$a_int_ScrollOffset / 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_TemplateContainer->getContent(); } }