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footnotes/class/task.php

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Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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<?php // phpcs:disable WordPress.Files.FileName.InvalidClassFileName
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/**
* Includes the core function of the Plugin - Search and Replace the Footnotes.
*
* @filesource
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* @package footnotes
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* @since 1.5.0
*
* @lastmodified 2021-02-20T0438+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.
*/
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// If called directly, abort.
if ( ! defined( 'ABSPATH' ) ) {
die;
}
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/**
* Searches and replaces the footnotes.
* Generates the reference container.
*
* @since 1.5.0
*/
class MCI_Footnotes_Task {
/**
* Contains all footnotes found on current public page.
*
* @since 1.5.0
* @var array
*/
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public static $a_arr_footnotes = array();
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/**
* Flag if the display of 'LOVE FOOTNOTES' is allowed on the current public page.
*
* @since 1.5.0
* @var bool
*/
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public static $a_bool_allow_love_me = true;
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/**
* Prefix for the Footnote html element ID.
*
* @since 1.5.8
* @var string
*/
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public static $a_str_prefix = '';
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/**
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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* Autoload a.k.a. infinite scroll, or archive view.
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*
* - 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.
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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* post ID to make everything unique wrt infinite scroll and archive view.
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*/
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public static $a_int_post_id = 0;
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/**
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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* Multiple reference containers in content and widgets.
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*
* - 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 each 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.
*/
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public static $a_int_reference_container_id = 1;
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/**
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* Whether tooltips are enabled. Actual value depends on settings.
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*
* - Bugfix: Templates: optimize template load and processing based on settings, thanks to @misfist code contribution.
*
* @since 2.4.0
* @date 2021-01-04T1355+0100
*
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* @contributor Patrizia Lutz @misfist
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* @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
*
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* Template process and script / stylesheet load optimization.
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* Streamline process depending on tooltip enabled status.
* Load tooltip inline script only if jQuery tooltips are enabled.
*/
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public static $a_bool_tooltips_enabled = false;
/**
* Whether alternative tooltips are enabled. Actual value depends on settings.
*
* @since 2.4.0
*
* @var bool
*/
public static $a_bool_alternative_tooltips_enabled = false;
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/**
* 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.
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*
* Used both in search() and reference_container(), these need to be class variables.
*/
/**
* Whether hard links are enabled.
*
* @since 2.3.0
* @var bool
*/
public static $a_bool_hard_links_enable = false;
/**
* The referrer slug.
*
* @since 2.3.0
* @var str
*/
public static $a_str_referrer_link_slug = 'r';
/**
* The footnote slug.
*
* @since 2.3.0
* @var str
*/
public static $a_str_footnote_link_slug = 'f';
/**
* The slug and identifier separator.
*
* @since 2.3.0
* @var str
*/
private static $a_str_link_ids_separator = '+';
/**
* Contains the concatenated link.
*
* @since 2.3.0
* @var str
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*/
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public static $a_str_post_container_id_compound = '';
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/**
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* Scroll offset.
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*
* - 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.
*/
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public static $a_int_scroll_offset = 34;
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/**
* Optional link element for footnote referrers and backlinks
*
* @since 2.0.0 add link elements along with hard links.
*
* - Bugfix: Referrers and backlinks: Styling: make link elements optional to fix issues, thanks to @docteurfitness issue report and code contribution.
*
* @since 2.1.4
* @date 2020-11-25T1306+0100
* @date 2020-11-26T1051+0100
*
* @contributor @docteurfitness
* @link https://wordpress.org/support/topic/update-2-1-3/#post-13704194
*
* @reporter @docteurfitness
* @link https://wordpress.org/support/topic/update-2-1-3/
*
* - Adding: Referrers and backlinks: optional hard links for AMP compatibility, thanks to @psykonevro bug report, thanks to @martinneumannat code contribution.
*
* @since 2.3.0
* @date 2020-12-30T2313+0100
*
* @contributor @martinneumannat
* @link https://wordpress.org/support/topic/making-it-amp-compatible/
*
* @reporter @psykonevro
* @link https://wordpress.org/support/topic/footnotes-is-not-amp-compatible/
*
* Although widely used for that purpose, hyperlinks are disliked for footnote linking.
* Browsers may need to be prevented from logging these clicks in the browsing history,
* as logging compromises the usability of the 'return to previous' button in browsers.
* For that purpose, and for scroll animation, this linking is performed by JavaScript.
*
* Link elements raise concerns, so that mitigating their proliferation may be desired.
*
* By contrast, due to an insufficiency in the CSS standard, coloring elements with the
* theme’s link color requires real link elements and cannot be done with named colors,
* as CSS does not support 'color: link|hover|active|visited', after the pseudo-classes
* of the link element.
*
* Yet styling these elements with the link color is not universally preferred, so that
* the very presence of these link elements may need to be avoided.
*
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* @see self::$a_bool_hard_links_enable
*
* Used both in search() and reference_container(), these need to be class variables.
*/
/**
* The span element name.
*
* @since 2.3.0
* @var str
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*/
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public static $a_str_link_span = 'span';
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/**
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* The opening tag.
*
* @since 2.3.0
* @var str
*/
public static $a_str_link_open_tag = '';
/**
* The closing tag.
*
* @since 2.3.0
* @var str
*/
public static $a_str_link_close_tag = '';
/**
* Dedicated tooltip text.
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*
* - 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.
*/
/**
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* The tooltip delimiter shortcode.
*
* @since 2.5.2
* @var str
*/
public static $a_str_tooltip_shortcode = '[[/tooltip]]';
/**
* The tooltip delimiter shortcode length.
*
* @since 2.5.2
* @var int
*/
public static $a_int_tooltip_shortcode_length = 12;
/**
* Whether to mirror the tooltip text in the reference container.
*
* @since 2.5.2
* @var bool
*/
public static $a_bool_mirror_tooltip_text = false;
/**
* Footnote delimiter syntax validation.
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*
* - 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.
*/
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public static $a_bool_syntax_error_flag = true;
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/**
* Register WordPress Hooks to replace Footnotes in the content of a public page.
*
* @since 1.5.0
*
* @since 1.5.4 Adding: Hooks: support 'the_post' in response to user request for custom post types.
* @since 2.0.5 Bugfix: Reference container: fix relative position through priority level, thanks to @june01 @imeson @spaceling bug reports, thanks to @spaceling code contribution.
* @since 2.0.5 Update: Hooks: Default-enable all hooks to prevent footnotes from seeming broken in some parts.
* @since 2.0.6 Bugfix: Priority level back to PHP_INT_MAX (ref container positioning not this plugin’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.
*/
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public function register_hooks() {
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/**
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* Priority levels.
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*
* - 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,
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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* priority needs to be at least 1200 (i.e. 0 =< $l_int_the_content_priority =< 1200).
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*
* PHP_INT_MAX cannot be reset by leaving the number box empty. because browsers
Small edits.
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* (WebKit) don’t allow it, so we must resort to -1.
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* @link https://github.com/Modernizr/Modernizr/issues/171
*/
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// Get values from settings.
$l_int_the_title_priority = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_EXPERT_LOOKUP_THE_TITLE_PRIORITY_LEVEL ) );
$l_int_the_content_priority = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_EXPERT_LOOKUP_THE_CONTENT_PRIORITY_LEVEL ) );
$l_int_the_excerpt_priority = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_EXPERT_LOOKUP_THE_EXCERPT_PRIORITY_LEVEL ) );
$l_int_widget_title_priority = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_EXPERT_LOOKUP_WIDGET_TITLE_PRIORITY_LEVEL ) );
$l_int_widget_text_priority = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_EXPERT_LOOKUP_WIDGET_TEXT_PRIORITY_LEVEL ) );
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// PHP_INT_MAX can be set by -1.
$l_int_the_title_priority = ( -1 === $l_int_the_title_priority ) ? PHP_INT_MAX : $l_int_the_title_priority;
$l_int_the_content_priority = ( -1 === $l_int_the_content_priority ) ? PHP_INT_MAX : $l_int_the_content_priority;
$l_int_the_excerpt_priority = ( -1 === $l_int_the_excerpt_priority ) ? PHP_INT_MAX : $l_int_the_excerpt_priority;
$l_int_widget_title_priority = ( -1 === $l_int_widget_title_priority ) ? PHP_INT_MAX : $l_int_widget_title_priority;
$l_int_widget_text_priority = ( -1 === $l_int_widget_text_priority ) ? PHP_INT_MAX : $l_int_widget_text_priority;
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// Append custom css to the header.
add_filter( 'wp_head', array( $this, 'wp_head' ), PHP_INT_MAX );
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// Append the love and share me slug to the footer.
add_filter( 'wp_footer', array( $this, 'wp_footer' ), PHP_INT_MAX );
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if ( MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_EXPERT_LOOKUP_THE_TITLE ) ) ) {
add_filter( 'the_title', array( $this, 'the_title' ), $l_int_the_title_priority );
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}
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// Configurable priority level for reference container relative positioning; default 98.
if ( MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_EXPERT_LOOKUP_THE_CONTENT ) ) ) {
add_filter( 'the_content', array( $this, 'the_content' ), $l_int_the_content_priority );
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/**
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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* Hook for category pages.
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*
* - 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/
*/
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add_filter( 'term_description', array( $this, 'the_content' ), $l_int_the_content_priority );
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/**
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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* Hook for popup maker popups.
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*
* - 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/
*/
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add_filter( 'pum_popup_content', array( $this, 'the_content' ), $l_int_the_content_priority );
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}
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if ( MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_EXPERT_LOOKUP_THE_EXCERPT ) ) ) {
add_filter( 'the_excerpt', array( $this, 'the_excerpt' ), $l_int_the_excerpt_priority );
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}
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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if ( MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_EXPERT_LOOKUP_WIDGET_TITLE ) ) ) {
add_filter( 'widget_title', array( $this, 'widget_title' ), $l_int_widget_title_priority );
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}
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if ( MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_EXPERT_LOOKUP_WIDGET_TEXT ) ) ) {
add_filter( 'widget_text', array( $this, 'widget_text' ), $l_int_widget_text_priority );
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}
/**
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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* The the_post hook.
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*
* - 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
*/
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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// Reset stored footnotes when displaying the header.
self::$a_arr_footnotes = array();
self::$a_bool_allow_love_me = true;
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}
/**
* Outputs the custom css to the header of the public page.
*
* @since 1.5.0
*
* @since 2.1.1 Bugfix: Reference container: fix start pages by making its display optional, thanks to @dragon013 bug report.
* @since 2.1.1 Bugfix: Tooltips: optional alternative JS implementation with CSS transitions to fix configuration-related outage, thanks to @andreasra feedback.
* @since 2.1.3 raise settings priority to override theme stylesheets
* @since 2.1.4 Bugfix: Tooltips: Styling: fix font size issue by adding font size to settings with legacy as default.
* @since 2.1.4 Bugfix: Reference container: fix layout issues by moving backlink column width to settings.
* @since 2.2.5 Bugfix: Reference container: Label: make bottom border an option, thanks to @markhillyer issue report.
* @since 2.2.5 Bugfix: Reference container: Label: option to select paragraph or heading element, thanks to @markhillyer issue report.
* @since 2.3.0 Bugfix: Reference container: convert top padding to margin and make it a setting, thanks to @hamshe bug report.
* @since 2.5.4 Bugfix: Referrers: optional fixes to vertical alignment, font size and position (static) for in-theme consistency and cross-theme stability, thanks to @tomturowski bug report.
*/
public function wp_head() {
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// Insert start tag without switching out of PHP.
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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.
*/
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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$l_str_normalize_superscript = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTE_REFERRERS_NORMAL_SUPERSCRIPT );
if ( 'no' !== $l_str_normalize_superscript ) {
if ( 'all' === $l_str_normalize_superscript ) {
echo 'sup {';
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} else {
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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echo '.footnote_plugin_tooltip_text {';
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}
echo "vertical-align: super; font-size: smaller; position: static;}\r\n";
}
/**
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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* Reference container display on home page.
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*
* - 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/
*/
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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if ( ! MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_START_PAGE_ENABLE ) ) ) {
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echo ".home .footnotes_reference_container { display: none; }\r\n";
}
/**
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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* Reference container top and bottom margins.
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*
* - 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
*/
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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$l_int_reference_container_top_margin = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_REFERENCE_CONTAINER_TOP_MARGIN ) );
$l_int_reference_container_bottom_margin = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_REFERENCE_CONTAINER_BOTTOM_MARGIN ) );
echo '.footnotes_reference_container {margin-top: ';
echo empty( $l_int_reference_container_top_margin ) ? '0' : esc_html( $l_int_reference_container_top_margin );
echo 'px !important; margin-bottom: ';
echo empty( $l_int_reference_container_bottom_margin ) ? '0' : esc_html( $l_int_reference_container_bottom_margin );
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echo "px !important;}\r\n";
/**
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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* Reference container label bottom border.
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*
* - 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/
*/
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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if ( MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_LABEL_BOTTOM_BORDER ) ) ) {
echo '.footnote_container_prepare > ';
echo esc_html( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_LABEL_ELEMENT ) );
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echo " {border-bottom: 1px solid #aaaaaa !important;}\r\n";
}
/**
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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* Reference container table row borders.
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*
* - 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/
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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*
* TODO: use `wp_add_inline_style()` or something like that instead.
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*/
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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if ( MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_ROW_BORDERS_ENABLE ) ) ) {
echo '.footnotes_table, .footnotes_plugin_reference_row {';
echo 'border: 1px solid #060606;';
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echo " !important;}\r\n";
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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// Adapt left padding to the presence of a border.
echo '.footnote_plugin_index, .footnote_plugin_index_combi {';
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echo "padding-left: 6px !important}\r\n";
}
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// Ref container first column width and max-width.
$l_bool_column_width_enabled = MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_BACKLINKS_COLUMN_WIDTH_ENABLED ) );
$l_bool_column_max_width_enabled = MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_BACKLINKS_COLUMN_MAX_WIDTH_ENABLED ) );
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if ( $l_bool_column_width_enabled || $l_bool_column_max_width_enabled ) {
echo '.footnote-reference-container { table-layout: fixed; }';
echo '.footnote_plugin_index, .footnote_plugin_index_combi {';
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if ( $l_bool_column_width_enabled ) {
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$l_int_column_width_scalar = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_BACKLINKS_COLUMN_WIDTH_SCALAR );
$l_str_column_width_unit = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_BACKLINKS_COLUMN_WIDTH_UNIT );
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if ( ! empty( $l_int_column_width_scalar ) ) {
if ( '%' === $l_str_column_width_unit ) {
if ( $l_int_column_width_scalar > 100 ) {
$l_int_column_width_scalar = 100;
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}
}
} else {
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$l_int_column_width_scalar = 0;
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}
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echo ' width: ' . esc_html( $l_int_column_width_scalar ) . esc_html( $l_str_column_width_unit ) . ' !important;';
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}
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if ( $l_bool_column_max_width_enabled ) {
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$l_int_column_max_width_scalar = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_BACKLINKS_COLUMN_MAX_WIDTH_SCALAR );
$l_str_column_max_width_unit = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_BACKLINKS_COLUMN_MAX_WIDTH_UNIT );
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if ( ! empty( $l_int_column_max_width_scalar ) ) {
if ( '%' === $l_str_column_max_width_unit ) {
if ( $l_int_column_max_width_scalar > 100 ) {
$l_int_column_max_width_scalar = 100;
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}
}
} else {
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$l_int_column_max_width_scalar = 0;
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}
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echo ' max-width: ' . esc_html( $l_int_column_max_width_scalar ) . esc_html( $l_str_column_max_width_unit ) . ' !important;';
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}
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echo "}\r\n";
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}
/**
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* Hard links scroll offset.
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*
* - Bugfix: Scroll offset: make configurable to fix site-dependent issues related to fixed headers.
*
* @since 2.1.4
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*
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* @since 2.5.6 hard links are always enabled when the alternative reference container is.
*/
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self::$a_bool_hard_links_enable = MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_HARD_LINKS_ENABLE ) );
// Correct hard links enabled status depending on alternative reference container enabled status.
$l_str_script_mode = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_REFERENCE_CONTAINER_SCRIPT_MODE );
if ( 'jquery' !== $l_str_script_mode ) {
self::$a_bool_hard_links_enable = true;
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}
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self::$a_int_scroll_offset = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_FOOTNOTES_SCROLL_OFFSET ) );
if ( self::$a_bool_hard_links_enable ) {
echo '.footnote_referrer_anchor, .footnote_item_anchor {bottom: ';
echo esc_html( self::$a_int_scroll_offset );
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echo "vh;}\r\n";
}
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/*
* Tooltips.
*/
self::$a_bool_tooltips_enabled = MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_MOUSE_OVER_BOX_ENABLED ) );
self::$a_bool_alternative_tooltips_enabled = MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_MOUSE_OVER_BOX_ALTERNATIVE ) );
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if ( self::$a_bool_tooltips_enabled ) {
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echo '.footnote_tooltip {';
/**
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* Tooltip appearance: Tooltip font size.
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*
* - 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: ';
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if ( MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_MOUSE_OVER_BOX_FONT_SIZE_ENABLED ) ) ) {
echo esc_html( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_FLO_MOUSE_OVER_BOX_FONT_SIZE_SCALAR ) );
echo esc_html( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_MOUSE_OVER_BOX_FONT_SIZE_UNIT ) );
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} else {
echo 'inherit';
}
echo ' !important;';
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/*
* Tooltip Text color.
*/
$l_str_color = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_MOUSE_OVER_BOX_COLOR );
if ( ! empty( $l_str_color ) ) {
printf( ' color: %s !important;', esc_html( $l_str_color ) );
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}
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/*
* Tooltip Background color.
*/
$l_str_background = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_MOUSE_OVER_BOX_BACKGROUND );
if ( ! empty( $l_str_background ) ) {
printf( ' background-color: %s !important;', esc_html( $l_str_background ) );
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}
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/*
* Tooltip Border width.
*/
$l_int_border_width = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_FOOTNOTES_MOUSE_OVER_BOX_BORDER_WIDTH );
if ( ! empty( $l_int_border_width ) && intval( $l_int_border_width ) > 0 ) {
printf( ' border-width: %dpx !important; border-style: solid !important;', esc_html( $l_int_border_width ) );
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}
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/*
* Tooltip Border color.
*/
$l_str_border_color = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_MOUSE_OVER_BOX_BORDER_COLOR );
if ( ! empty( $l_str_border_color ) ) {
printf( ' border-color: %s !important;', esc_html( $l_str_border_color ) );
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}
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/*
* Tooltip Corner radius.
*/
$l_int_border_radius = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_FOOTNOTES_MOUSE_OVER_BOX_BORDER_RADIUS );
if ( ! empty( $l_int_border_radius ) && intval( $l_int_border_radius ) > 0 ) {
printf( ' border-radius: %dpx !important;', esc_html( $l_int_border_radius ) );
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}
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/*
* Tooltip Shadow color.
*/
$l_str_box_shadow_color = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_MOUSE_OVER_BOX_SHADOW_COLOR );
if ( ! empty( $l_str_box_shadow_color ) ) {
printf( ' -webkit-box-shadow: 2px 2px 11px %s;', esc_html( $l_str_box_shadow_color ) );
printf( ' -moz-box-shadow: 2px 2px 11px %s;', esc_html( $l_str_box_shadow_color ) );
printf( ' box-shadow: 2px 2px 11px %s;', esc_html( $l_str_box_shadow_color ) );
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}
/**
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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* Tooltip position and timing.
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*
* - Bugfix: Tooltips: make display delays and fade durations configurable to conform to website style.
*
* @since 2.1.4
* @date 2020-12-06T1320+0100
*
*
* - Update: Tooltips: Alternative tooltips: connect to position/timing settings (for themes not supporting jQuery tooltips).
*
* @since 2.2.5
* @date 2020-12-18T1113+0100
*/
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if ( ! self::$a_bool_alternative_tooltips_enabled ) {
/*
* jQuery tooltips.
*/
$l_int_max_width = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_FOOTNOTES_MOUSE_OVER_BOX_MAX_WIDTH );
if ( ! empty( $l_int_max_width ) && intval( $l_int_max_width ) > 0 ) {
printf( ' max-width: %dpx !important;', esc_html( $l_int_max_width ) );
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}
echo "}\r\n";
} else {
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/*
* Alternative tooltips.
*/
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echo "}\r\n";
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// Dimensions.
$l_int_alternative_tooltip_width = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_FOOTNOTES_ALTERNATIVE_MOUSE_OVER_BOX_WIDTH ) );
echo '.footnote_tooltip.position {';
echo ' width: ' . esc_html( $l_int_alternative_tooltip_width ) . 'px;';
// Set also as max-width wrt short tooltip shrinking.
echo ' max-width: ' . esc_html( $l_int_alternative_tooltip_width ) . 'px;';
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// Position.
$l_str_alternative_position = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_ALTERNATIVE_MOUSE_OVER_BOX_POSITION );
$l_int_offset_x = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_FOOTNOTES_ALTERNATIVE_MOUSE_OVER_BOX_OFFSET_X ) );
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if ( 'top left' === $l_str_alternative_position || 'bottom left' === $l_str_alternative_position ) {
echo ' right: ' . ( ! empty( $l_int_offset_x ) ? esc_html( $l_int_offset_x ) : 0 ) . 'px;';
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} else {
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echo ' left: ' . ( ! empty( $l_int_offset_x ) ? esc_html( $l_int_offset_x ) : 0 ) . 'px;';
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}
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$l_int_offset_y = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_FOOTNOTES_ALTERNATIVE_MOUSE_OVER_BOX_OFFSET_Y ) );
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if ( 'top left' === $l_str_alternative_position || 'top right' === $l_str_alternative_position ) {
echo ' bottom: ' . ( ! empty( $l_int_offset_y ) ? esc_html( $l_int_offset_y ) : 0 ) . 'px;';
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} else {
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echo ' top: ' . ( ! empty( $l_int_offset_y ) ? esc_html( $l_int_offset_y ) : 0 ) . 'px;';
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}
echo "}\r\n";
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/**
* Alternative tooltip timing.
*
Minor whitespace, commenting tweaks
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* For jQuery tooltip timing @see templates/public/tooltip.html.
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*/
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echo ' .footnote_tooltip.shown {';
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$l_int_fade_in_delay = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_IN_DELAY ) );
$l_int_fade_in_duration = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_IN_DURATION ) );
$l_int_fade_in_delay = ! empty( $l_int_fade_in_delay ) ? $l_int_fade_in_delay : '0';
$l_int_fade_in_duration = ! empty( $l_int_fade_in_duration ) ? $l_int_fade_in_duration : '0';
echo ' transition-delay: ' . esc_html( $l_int_fade_in_delay ) . 'ms;';
echo ' transition-duration: ' . esc_html( $l_int_fade_in_duration ) . 'ms;';
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echo '} .footnote_tooltip.hidden {';
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$l_int_fade_out_delay = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_OUT_DELAY ) );
$l_int_fade_out_duration = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_OUT_DURATION ) );
$l_int_fade_out_delay = ! empty( $l_int_fade_out_delay ) ? $l_int_fade_out_delay : '0';
$l_int_fade_out_duration = ! empty( $l_int_fade_out_duration ) ? $l_int_fade_out_duration : '0';
echo ' transition-delay: ' . esc_html( $l_int_fade_out_delay ) . 'ms;';
echo ' transition-duration: ' . esc_html( $l_int_fade_out_duration ) . 'ms;';
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echo "}\r\n";
}
}
/**
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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* Custom CSS.
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*
* - 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.
*/
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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if ( MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_CUSTOM_CSS_LEGACY_ENABLE ) ) ) {
echo esc_html( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_CUSTOM_CSS ) );
echo "\r\n";
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}
Update codebase to be WP Coding Standard-compliant. This is a squashed copy of `wp-coding-standard--rebase` to try and fix the line-ending diff issue we're having.
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echo esc_html( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_CUSTOM_CSS_NEW ) );
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// Insert end tag without switching out of PHP.
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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
*
Fix internal script.
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* The script for alternative tooltips is printed formatted, not minified,
* for transparency. It isn’t indented though (the PHP open tag neither).
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*/
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if ( self::$a_bool_alternative_tooltips_enabled ) {
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// Start internal script.
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?>
<script content="text/javascript">
Fix internal script.
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function footnoteTooltipShow(footnoteTooltipId) {
document.getElementById(footnoteTooltipId).classList.remove('hidden');
document.getElementById(footnoteTooltipId).classList.add('shown');
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}
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function footnoteTooltipHide(footnoteTooltipId) {
document.getElementById(footnoteTooltipId).classList.remove('shown');
document.getElementById(footnoteTooltipId).classList.add('hidden');
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}
</script>
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<?php
// End internal script.
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};
}
/**
* Displays the 'LOVE FOOTNOTES' slug if enabled.
*
* @since 1.5.0
*
* @since 2.2.0 more options 2020-12-11T0506+0100
*/
public function wp_footer() {
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if ( 'footer' === MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_POSITION ) ) {
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// phpcs:disable WordPress.Security.EscapeOutput.OutputNotEscaped
echo $this->reference_container();
// phpcs:enable
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}
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// Get setting for love and share this plugin.
$l_str_love_me_index = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_LOVE );
// Check if the admin allows to add a link to the footer.
if ( empty( $l_str_love_me_index ) || 'no' === strtolower( $l_str_love_me_index ) || ! self::$a_bool_allow_love_me ) {
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return;
}
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// Set a hyperlink to the word "footnotes" in the Love slug.
$l_str_linked_name = sprintf( '<a href="https://wordpress.org/plugins/footnotes/" target="_blank" style="text-decoration:none;">%s</a>', MCI_Footnotes_Config::C_STR_PLUGIN_PUBLIC_NAME );
// Get random love me text.
if ( 'random' === strtolower( $l_str_love_me_index ) ) {
$l_str_love_me_index = 'text-' . wp_rand( 1, 7 );
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}
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switch ( $l_str_love_me_index ) {
// Options named wrt backcompat, simplest is default.
case 'text-1':
/* Translators: 2: Link to plugin page 1: Love heart symbol */
$l_str_love_me_text = sprintf( __( 'I %2$s %1$s', 'footnotes' ), $l_str_linked_name, MCI_Footnotes_Config::C_STR_LOVE_SYMBOL );
break;
case 'text-2':
/* Translators: %s: Link to plugin page */
$l_str_love_me_text = sprintf( __( 'This website uses the awesome %s plugin.', 'footnotes' ), $l_str_linked_name );
break;
case 'text-4':
/* Translators: 1: Link to plugin page 2: Love heart symbol */
$l_str_love_me_text = sprintf( '%1$s %2$s', $l_str_linked_name, MCI_Footnotes_Config::C_STR_LOVE_SYMBOL );
break;
case 'text-5':
/* Translators: 1: Love heart symbol 2: Link to plugin page */
$l_str_love_me_text = sprintf( '%1$s %2$s', MCI_Footnotes_Config::C_STR_LOVE_SYMBOL, $l_str_linked_name );
break;
case 'text-6':
/* Translators: %s: Link to plugin page */
$l_str_love_me_text = sprintf( __( 'This website uses %s.', 'footnotes' ), $l_str_linked_name );
break;
case 'text-7':
/* Translators: %s: Link to plugin page */
$l_str_love_me_text = sprintf( __( 'This website uses the %s plugin.', 'footnotes' ), $l_str_linked_name );
break;
case 'text-3':
default:
/* Translators: %s: Link to plugin page */
$l_str_love_me_text = sprintf( '%s', $l_str_linked_name );
break;
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}
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echo sprintf( '<div style="text-align:center; color:#acacac;">%s</div>', esc_html( $l_str_love_me_text ) );
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}
/**
* Replaces footnotes in the post/page title.
*
* @since 1.5.0
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* @param string $p_str_content Widget content.
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* @return string Content with replaced footnotes.
*/
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public function the_title( $p_str_content ) {
// Appends the reference container if set to "post_end".
return $this->exec( $p_str_content, false );
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}
/**
* Replaces footnotes in the content of the current page/post.
*
* @since 1.5.0
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* @param string $p_str_content Page/Post content.
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* @return string Content with replaced footnotes.
*/
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public function the_content( $p_str_content ) {
// phpcs:disable WordPress.PHP.YodaConditions.NotYoda
// Appends the reference container if set to "post_end".
return $this->exec( $p_str_content, 'post_end' === MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_POSITION ) );
// phpcs:enable
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}
/**
* Replaces footnotes in the excerpt of the current page/post.
*
* @since 1.5.0
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* @param string $p_str_content Page/Post content.
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* @return string Content with replaced footnotes.
*/
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public function the_excerpt( $p_str_content ) {
return $this->exec( $p_str_content, false, ! MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_IN_EXCERPT ) ) );
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}
/**
* Replaces footnotes in the widget title.
*
* @since 1.5.0
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* @param string $p_str_content Widget content.
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* @return string Content with replaced footnotes.
*/
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public function widget_title( $p_str_content ) {
// Appends the reference container if set to "post_end".
return $this->exec( $p_str_content, false );
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}
/**
* Replaces footnotes in the content of the current widget.
*
* @since 1.5.0
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* @param string $p_str_content Widget content.
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* @return string Content with replaced footnotes.
*/
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public function widget_text( $p_str_content ) {
// phpcs:disable WordPress.PHP.YodaConditions.NotYoda
// Appends the reference container if set to "post_end".
return $this->exec( $p_str_content, 'post_end' === MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_POSITION ) ? true : false );
// phpcs:enable
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}
/**
* Replaces footnotes in each Content var of the current Post object.
*
* @since 1.5.4
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* @param array|WP_Post $p_mixed_posts The current Post object.
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*/
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public function the_post( &$p_mixed_posts ) {
// Single WP_Post object received.
if ( ! is_array( $p_mixed_posts ) ) {
$p_mixed_posts = $this->replace_post_object( $p_mixed_posts );
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return;
}
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$num_posts = count( $p_mixed_posts );
// Array of WP_Post objects received.
for ( $l_int_index = 0; $l_int_index < $num_posts; $l_int_index++ ) {
$p_mixed_posts[ $l_int_index ] = $this->replace_post_object( $p_mixed_posts[ $l_int_index ] );
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}
}
/**
* Replace all Footnotes in a WP_Post object.
*
* @since 1.5.6
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* @param WP_Post $p_obj_post The Post object.
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* @return WP_Post
*/
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private function replace_post_object( $p_obj_post ) {
$p_obj_post->post_content = $this->exec( $p_obj_post->post_content );
$p_obj_post->post_content_filtered = $this->exec( $p_obj_post->post_content_filtered );
$p_obj_post->post_excerpt = $this->exec( $p_obj_post->post_excerpt );
return $p_obj_post;
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}
/**
* Replaces all footnotes that occur in the given content.
*
* @since 1.5.0
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* @param string $p_str_content Any string that may contain footnotes to be replaced.
* @param bool $p_bool_output_references Appends the Reference Container to the output if set to true, default true.
* @param bool $p_bool_hide_footnotes_text Hide footnotes found in the string.
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* @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.
*/
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public function exec( $p_str_content, $p_bool_output_references = false, $p_bool_hide_footnotes_text = false ) {
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// Replace all footnotes in the content, settings are converted to html characters.
$p_str_content = $this->search( $p_str_content, true, $p_bool_hide_footnotes_text );
// Replace all footnotes in the content, settings are NOT converted to html characters.
$p_str_content = $this->search( $p_str_content, false, $p_bool_hide_footnotes_text );
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/**
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* Reference container customized positioning through shortcode.
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*
* - 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
*/
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// Append the reference container or insert at shortcode.
$l_str_reference_container_position_shortcode = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_POSITION_SHORTCODE );
if ( empty( $l_str_reference_container_position_shortcode ) ) {
$l_str_reference_container_position_shortcode = '[[references]]';
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}
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if ( $p_bool_output_references ) {
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if ( strpos( $p_str_content, $l_str_reference_container_position_shortcode ) ) {
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$p_str_content = str_replace( $l_str_reference_container_position_shortcode, $this->reference_container(), $p_str_content );
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} else {
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$p_str_content .= $this->reference_container();
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}
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// Increment the container ID.
self::$a_int_reference_container_id++;
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}
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// Delete position shortcode should any remain.
$p_str_content = str_replace( $l_str_reference_container_position_shortcode, '', $p_str_content );
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// Take a look if the LOVE ME slug should NOT be displayed on this page/post, remove the short code if found.
if ( strpos( $p_str_content, MCI_Footnotes_Config::C_STR_NO_LOVE_SLUG ) ) {
self::$a_bool_allow_love_me = false;
$p_str_content = str_replace( MCI_Footnotes_Config::C_STR_NO_LOVE_SLUG, '', $p_str_content );
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}
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// Return the content with replaced footnotes and optional reference container appended.
return $p_str_content;
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}
/**
* Replaces all footnotes in the given content and appends them to the static property.
*
* @since 1.5.0
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* @param string $p_str_content Content to be searched for footnotes.
* @param bool $p_bool_convert_html_chars html encode settings, default true.
* @param bool $p_bool_hide_footnotes_text Hide footnotes found in the string.
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* @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.
*/
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public function search( $p_str_content, $p_bool_convert_html_chars, $p_bool_hide_footnotes_text ) {
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// Post ID to make everything unique wrt infinite scroll and archive view.
self::$a_int_post_id = get_the_id();
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// Contains the index for the next footnote on this page.
$l_int_footnote_index = count( self::$a_arr_footnotes ) + 1;
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// Contains the starting position for the lookup of a footnote.
$l_int_pos_start = 0;
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// Get start and end tag for the footnotes short code.
$l_str_starting_tag = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_SHORT_CODE_START );
$l_str_ending_tag = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_SHORT_CODE_END );
if ( 'userdefined' === $l_str_starting_tag || 'userdefined' === $l_str_ending_tag ) {
$l_str_starting_tag = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_SHORT_CODE_START_USER_DEFINED );
$l_str_ending_tag = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_SHORT_CODE_END_USER_DEFINED );
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}
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// Decode html special chars.
if ( $p_bool_convert_html_chars ) {
$l_str_starting_tag = htmlspecialchars( $l_str_starting_tag );
$l_str_ending_tag = htmlspecialchars( $l_str_ending_tag );
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}
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// If footnotes short code is empty, return the content without changes.
if ( empty( $l_str_starting_tag ) || empty( $l_str_ending_tag ) ) {
return $p_str_content;
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}
/**
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* Footnote delimiter syntax validation.
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*
* - 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.
*/
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if ( MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTE_SHORTCODE_SYNTAX_VALIDATION_ENABLE ) ) ) {
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// Make shortcodes conform to regex syntax.
$l_str_start_tag_regex = preg_replace( '#([\(\)\{\}\[\]\*\.\?\!])#', '\\\\$1', $l_str_starting_tag );
$l_str_end_tag_regex = preg_replace( '#([\(\)\{\}\[\]\*\.\?\!])#', '\\\\$1', $l_str_ending_tag );
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// Apply different regex depending on whether start shortcode is double/triple opening parenthesis.
if ( '((' === $l_str_starting_tag || '(((' === $l_str_starting_tag ) {
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// This prevents from catching a script containing e.g. a double opening parenthesis.
$l_str_validation_regex = '#' . $l_str_start_tag_regex . '(((?!' . $l_str_end_tag_regex . ')[^\{\}])*?)(' . $l_str_start_tag_regex . '|$)#s';
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} else {
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// Catch all only if the start shortcode is not double/triple opening parenthesis, i.e. is unlikely to occur in scripts.
$l_str_validation_regex = '#' . $l_str_start_tag_regex . '(((?!' . $l_str_end_tag_regex . ').)*?)(' . $l_str_start_tag_regex . '|$)#s';
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}
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// Check syntax and get error locations.
preg_match( $l_str_validation_regex, $p_str_content, $p_arr_error_location );
if ( empty( $p_arr_error_location ) ) {
self::$a_bool_syntax_error_flag = false;
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}
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// Prevent generating and inserting the warning multiple times.
if ( self::$a_bool_syntax_error_flag ) {
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// Get plain text string for error location.
$l_str_error_spot_string = wp_strip_all_tags( $p_arr_error_location[1] );
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// Limit string length to 300 characters.
if ( strlen( $l_str_error_spot_string ) > 300 ) {
$l_str_error_spot_string = substr( $l_str_error_spot_string, 0, 299 ) . '…';
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}
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// Compose warning box.
$l_str_syntax_error_warning = '<div class="footnotes_validation_error"><p>';
$l_str_syntax_error_warning .= __( 'WARNING: unbalanced footnote start tag short code found.', 'footnotes' );
$l_str_syntax_error_warning .= '</p><p>';
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// Syntax validation setting in the dashboard under the General settings tab.
/* Translators: 1: General Settings 2: Footnote start and end short codes 3: Check for balanced shortcodes */
$l_str_syntax_error_warning .= sprintf( __( 'If this warning is irrelevant, please disable the syntax validation feature in the dashboard under %1$s &gt; %2$s &gt; %3$s.', 'footnotes' ), __( 'General settings', 'footnotes' ), __( 'Footnote start and end short codes', 'footnotes' ), __( 'Check for balanced shortcodes', 'footnotes' ) );
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$l_str_syntax_error_warning .= '</p><p>';
$l_str_syntax_error_warning .= __( 'Unbalanced start tag short code found before:', 'footnotes' );
$l_str_syntax_error_warning .= '</p><p>“';
$l_str_syntax_error_warning .= $l_str_error_spot_string;
$l_str_syntax_error_warning .= '”</p></div>';
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// Prepend the warning box to the content.
$p_str_content = $l_str_syntax_error_warning . $p_str_content;
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// Checked, set flag to false to prevent duplicate warning.
self::$a_bool_syntax_error_flag = false;
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return $p_str_content;
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}
}
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// Load referrer templates if footnotes text not hidden.
if ( ! $p_bool_hide_footnotes_text ) {
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// Load footnote referrer template file.
if ( self::$a_bool_alternative_tooltips_enabled ) {
$l_obj_template = new MCI_Footnotes_Template( MCI_Footnotes_Template::C_STR_PUBLIC, 'footnote-alternative' );
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} else {
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$l_obj_template = new MCI_Footnotes_Template( MCI_Footnotes_Template::C_STR_PUBLIC, 'footnote' );
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}
/**
* 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
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* @see self::add_filter('pum_popup_content', array($this, "the_content"), $l_int_the_content_priority)
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*/
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self::$a_bool_tooltips_enabled = MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_MOUSE_OVER_BOX_ENABLED ) );
self::$a_bool_alternative_tooltips_enabled = MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_MOUSE_OVER_BOX_ALTERNATIVE ) );
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// Load tooltip inline script if jQuery tooltips are enabled.
if ( self::$a_bool_tooltips_enabled && ! self::$a_bool_alternative_tooltips_enabled ) {
$l_obj_template_tooltip = new MCI_Footnotes_Template( MCI_Footnotes_Template::C_STR_PUBLIC, 'tooltip' );
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}
} else {
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$l_obj_template = null;
$l_obj_template_tooltip = null;
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}
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// Search footnotes short codes in the content.
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do {
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// Get first occurrence of the footnote start tag short code.
$i_int_len_content = strlen( $p_str_content );
if ( $l_int_pos_start > $i_int_len_content ) {
$l_int_pos_start = $i_int_len_content;
}
$l_int_pos_start = strpos( $p_str_content, $l_str_starting_tag, $l_int_pos_start );
// No short code found, stop here.
if ( ! $l_int_pos_start ) {
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break;
}
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// Get first occurrence of the footnote end tag short code.
$l_int_pos_end = strpos( $p_str_content, $l_str_ending_tag, $l_int_pos_start );
// No short code found, stop here.
if ( ! $l_int_pos_end ) {
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break;
}
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// Calculate the length of the footnote.
$l_int_length = $l_int_pos_end - $l_int_pos_start;
// Get footnote text.
$l_str_footnote_text = substr( $p_str_content, $l_int_pos_start + strlen( $l_str_starting_tag ), $l_int_length - strlen( $l_str_starting_tag ) );
// Get tooltip text if present.
self::$a_str_tooltip_shortcode = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_TOOLTIP_EXCERPT_DELIMITER );
self::$a_int_tooltip_shortcode_length = strlen( self::$a_str_tooltip_shortcode );
$l_int_tooltip_text_length = strpos( $l_str_footnote_text, self::$a_str_tooltip_shortcode );
$l_bool_has_tooltip_text = ! $l_int_tooltip_text_length ? false : true;
if ( $l_bool_has_tooltip_text ) {
$l_str_tooltip_text = substr( $l_str_footnote_text, 0, $l_int_tooltip_text_length );
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} else {
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$l_str_tooltip_text = '';
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}
/**
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* URL line wrapping for Unicode non conformant browsers.
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*
* @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.
*/
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if ( MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTE_URL_WRAP_ENABLED ) ) ) {
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$l_str_footnote_text = preg_replace(
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'#(?<![-\w\.!~\*\'\(\);]=[\'"])(?<![-\w\.!~\*\'\(\);]=[\'"] )(?<![-\w\.!~\*\'\(\);]=[\'"] )(?<![-\w\.!~\*\'\(\);]=)(?<!/)((ht|f)tps?://[^\\s<]+)#',
'<span class="footnote_url_wrap">$1</span>',
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$l_str_footnote_text
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);
}
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// Text to be displayed instead of the footnote.
$l_str_footnote_replace_text = '';
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// Whether hard links are enabled.
if ( self::$a_bool_hard_links_enable ) {
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// Get the configurable parts.
self::$a_str_referrer_link_slug = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_REFERRER_FRAGMENT_ID_SLUG );
self::$a_str_footnote_link_slug = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTE_FRAGMENT_ID_SLUG );
self::$a_str_link_ids_separator = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_HARD_LINK_IDS_SEPARATOR );
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// Streamline ID concatenation.
self::$a_str_post_container_id_compound = self::$a_str_link_ids_separator;
self::$a_str_post_container_id_compound .= self::$a_int_post_id;
self::$a_str_post_container_id_compound .= self::$a_str_link_ids_separator;
self::$a_str_post_container_id_compound .= self::$a_int_reference_container_id;
self::$a_str_post_container_id_compound .= self::$a_str_link_ids_separator;
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}
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// Display the footnote referrers and the tooltips.
if ( ! $p_bool_hide_footnotes_text ) {
$l_int_index = MCI_Footnotes_Convert::index( $l_int_footnote_index, MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_COUNTER_STYLE ) );
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// Display only a truncated footnote text if option enabled.
$l_bool_enable_excerpt = MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_MOUSE_OVER_BOX_EXCERPT_ENABLED ) );
$l_int_max_length = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_FOOTNOTES_MOUSE_OVER_BOX_EXCERPT_LENGTH ) );
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// Define excerpt text as footnote text by default.
$l_str_excerpt_text = $l_str_footnote_text;
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/**
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* Tooltip truncation.
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*
* - Adding: Tooltips: Read-on button: Label: configurable instead of localizable, thanks to @rovanov example provision.
*
* @since 2.1.0
* @date 2020-11-08T2146+0100
*
* @reporter @rovanov
* @link https://wordpress.org/support/topic/offset-x-axis-and-offset-y-axis-does-not-working/
*
* If the tooltip truncation option is enabled, it’s done based on character count,
* and a trailing incomplete word is cropped.
* This is equivalent to the WordPress default excerpt generation, i.e. without a
* custom excerpt and without a delimiter. But WordPress does word count, usually 55.
*/
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if ( self::$a_bool_tooltips_enabled && $l_bool_enable_excerpt ) {
$l_str_dummy_text = wp_strip_all_tags( $l_str_footnote_text );
if ( is_int( $l_int_max_length ) && strlen( $l_str_dummy_text ) > $l_int_max_length ) {
$l_str_excerpt_text = substr( $l_str_dummy_text, 0, $l_int_max_length );
$l_str_excerpt_text = substr( $l_str_excerpt_text, 0, strrpos( $l_str_excerpt_text, ' ' ) );
$l_str_excerpt_text .= '&nbsp;&#x2026; <';
$l_str_excerpt_text .= self::$a_bool_hard_links_enable ? 'a' : 'span';
$l_str_excerpt_text .= ' class="footnote_tooltip_continue" ';
$l_str_excerpt_text .= 'onclick="footnote_move_to_anchor_' . self::$a_int_post_id;
$l_str_excerpt_text .= '_' . self::$a_int_reference_container_id;
$l_str_excerpt_text .= '(\'footnote_plugin_reference_' . self::$a_int_post_id;
$l_str_excerpt_text .= '_' . self::$a_int_reference_container_id;
$l_str_excerpt_text .= "_$l_int_index');\"";
// If enabled, add the hard link fragment ID.
if ( self::$a_bool_hard_links_enable ) {
$l_str_excerpt_text .= ' href="#';
$l_str_excerpt_text .= self::$a_str_footnote_link_slug;
$l_str_excerpt_text .= self::$a_str_post_container_id_compound;
$l_str_excerpt_text .= $l_int_index;
$l_str_excerpt_text .= '"';
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}
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$l_str_excerpt_text .= '>';
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/**
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* Configurable read-on button label.
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*
* - 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/
*/
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$l_str_excerpt_text .= MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_TOOLTIP_READON_LABEL );
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$l_str_excerpt_text .= self::$a_bool_hard_links_enable ? '</a>' : '</span>';
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}
}
/**
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* Referrers element superscript or baseline.
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*
* Referrers: new setting for vertical align: superscript (default) or baseline (optional), thanks to @cwbayer bug report
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*
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* @since 2.1.1
*
* @reporter @cwbayer
* @link https://wordpress.org/support/topic/footnote-number-in-text-superscript-disrupts-leading/
*
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* define the HTML element to use for the referrers.
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*/
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if ( MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_REFERRER_SUPERSCRIPT_TAGS ) ) ) {
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$l_str_sup_span = 'sup';
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} else {
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$l_str_sup_span = 'span';
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}
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// Whether hard links are enabled.
if ( self::$a_bool_hard_links_enable ) {
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self::$a_str_link_span = 'a';
self::$a_str_link_close_tag = '</a>';
// Self::$a_str_link_open_tag will be defined as needed.
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// Compose hyperlink address (leading space is in template).
$l_str_footnote_link_argument = 'href="#';
$l_str_footnote_link_argument .= self::$a_str_footnote_link_slug;
$l_str_footnote_link_argument .= self::$a_str_post_container_id_compound;
$l_str_footnote_link_argument .= $l_int_index;
$l_str_footnote_link_argument .= '" class="footnote_hard_link"';
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/**
* Compose fragment ID anchor with offset, for use in reference container.
* Empty span, child of empty span, to avoid tall dotted rectangles in browser.
*/
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$l_str_referrer_anchor_element = '<span class="footnote_referrer_base"><span id="';
$l_str_referrer_anchor_element .= self::$a_str_referrer_link_slug;
$l_str_referrer_anchor_element .= self::$a_str_post_container_id_compound;
$l_str_referrer_anchor_element .= $l_int_index;
$l_str_referrer_anchor_element .= '" class="footnote_referrer_anchor"></span></span>';
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} else {
/**
* Initialize hard link variables when hard links are disabled.
*
* - Bugfix: Process: initialize hard link address variables to empty string to fix 'undefined variable' bug, thanks to @a223123131 bug report.
*
* @since 2.4.0
* @date 2021-01-04T1622+0100
*
* @reporter @a223123131
* @link https://wordpress.org/support/topic/wp_debug-php-notice/
*
* If no hyperlink nor offset anchor is needed, initialize as empty.
*/
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$l_str_footnote_link_argument = '';
$l_str_referrer_anchor_element = '';
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// The link element is set independently as it may be needed for styling.
if ( MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_LINK_ELEMENT_ENABLED ) ) ) {
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self::$a_str_link_span = 'a';
self::$a_str_link_open_tag = '<a>';
self::$a_str_link_close_tag = '</a>';
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}
}
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// Determine tooltip content.
if ( self::$a_bool_tooltips_enabled ) {
$l_str_tooltip_content = $l_bool_has_tooltip_text ? $l_str_tooltip_text : $l_str_excerpt_text;
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} else {
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$l_str_tooltip_content = '';
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}
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/**
* Determine shrink width if alternative tooltips are enabled.
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*
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* @since 2.5.6
*/
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$l_str_tooltip_style = '';
if ( self::$a_bool_alternative_tooltips_enabled && self::$a_bool_tooltips_enabled ) {
$l_int_tooltip_length = strlen( wp_strip_all_tags( $l_str_tooltip_content ) );
if ( $l_int_tooltip_length < 70 ) {
$l_str_tooltip_style = ' style="width: ';
$l_str_tooltip_style .= ( $l_int_tooltip_length * .7 );
$l_str_tooltip_style .= 'em;"';
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}
}
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// Fill in 'templates/public/footnote.html'.
$l_obj_template->replace(
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array(
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'link-span' => self::$a_str_link_span,
'post_id' => self::$a_int_post_id,
'container_id' => self::$a_int_reference_container_id,
'note_id' => $l_int_index,
'hard-link' => $l_str_footnote_link_argument,
'sup-span' => $l_str_sup_span,
'before' => MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_STYLING_BEFORE ),
'index' => $l_int_index,
'after' => MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_STYLING_AFTER ),
'anchor-element' => $l_str_referrer_anchor_element,
'style' => $l_str_tooltip_style,
'text' => $l_str_tooltip_content,
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)
);
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$l_str_footnote_replace_text = $l_obj_template->get_content();
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// Reset the template.
$l_obj_template->reload();
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// If standard tooltips are enabled but alternative are not.
if ( self::$a_bool_tooltips_enabled && ! self::$a_bool_alternative_tooltips_enabled ) {
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$l_int_offset_y = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_FOOTNOTES_MOUSE_OVER_BOX_OFFSET_Y ) );
$l_int_offset_x = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_FOOTNOTES_MOUSE_OVER_BOX_OFFSET_X ) );
$l_int_fade_in_delay = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_IN_DELAY ) );
$l_int_fade_in_duration = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_IN_DURATION ) );
$l_int_fade_out_delay = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_OUT_DELAY ) );
$l_int_fade_out_duration = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_OUT_DURATION ) );
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// Fill in 'templates/public/tooltip.html'.
$l_obj_template_tooltip->replace(
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array(
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'post_id' => self::$a_int_post_id,
'container_id' => self::$a_int_reference_container_id,
'note_id' => $l_int_index,
'position' => MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_MOUSE_OVER_BOX_POSITION ),
'offset-y' => ! empty( $l_int_offset_y ) ? $l_int_offset_y : 0,
'offset-x' => ! empty( $l_int_offset_x ) ? $l_int_offset_x : 0,
'fade-in-delay' => ! empty( $l_int_fade_in_delay ) ? $l_int_fade_in_delay : 0,
'fade-in-duration' => ! empty( $l_int_fade_in_duration ) ? $l_int_fade_in_duration : 0,
'fade-out-delay' => ! empty( $l_int_fade_out_delay ) ? $l_int_fade_out_delay : 0,
'fade-out-duration' => ! empty( $l_int_fade_out_duration ) ? $l_int_fade_out_duration : 0,
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)
);
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$l_str_footnote_replace_text .= $l_obj_template_tooltip->get_content();
$l_obj_template_tooltip->reload();
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}
}
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// Replace the footnote with the template.
$p_str_content = substr_replace( $p_str_content, $l_str_footnote_replace_text, $l_int_pos_start, $l_int_length + strlen( $l_str_ending_tag ) );
// Add footnote only if not empty.
if ( ! empty( $l_str_footnote_text ) ) {
// Set footnote to the output box at the end.
self::$a_arr_footnotes[] = $l_str_footnote_text;
// Increase footnote index.
$l_int_footnote_index++;
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}
/**
* 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.
*/
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// Add offset to the new starting position.
$l_int_pos_start += $l_int_length + strlen( $l_str_ending_tag );
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} while ( true );
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// Return content.
return $p_str_content;
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}
/**
* Generates the reference container.
*
* @since 1.5.0
* @return string
*
* @since 2.0.0 Update: remove backlink symbol along with column 2 of the reference container
* @since 2.0.3 Bugfix: prepend an arrow on user request
* @since 2.0.6 Bugfix: Reference container: fix line breaking behavior in footnote number clusters.
* @since 2.0.4 Bugfix: restore the arrow select and backlink symbol input settings
* @since 2.1.1 Bugfix: Referrers, reference container: Combining identical footnotes: fix dead links and ensure referrer-backlink bijectivity, thanks to @happyches bug report.
* @since 2.1.1 Bugfix: Reference container: Backlink symbol: make optional, not suggest configuring it to invisible, thanks to @spaceling feedback.
*/
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public function reference_container() {
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// No footnotes have been replaced on this page.
if ( empty( self::$a_arr_footnotes ) ) {
return '';
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}
/**
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* Footnote index backlink symbol.
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*
* - 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
*
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* If the backlink symbol is enabled.
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*/
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if ( MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_BACKLINK_SYMBOL_ENABLE ) ) ) {
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// Get html arrow.
$l_str_arrow = MCI_Footnotes_Convert::get_arrow( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_HYPERLINK_ARROW ) );
// Set html arrow to the first one if invalid index defined.
if ( is_array( $l_str_arrow ) ) {
$l_str_arrow = MCI_Footnotes_Convert::get_arrow( 0 );
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}
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// Get user defined arrow.
$l_str_arrow_user_defined = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_HYPERLINK_ARROW_USER_DEFINED );
if ( ! empty( $l_str_arrow_user_defined ) ) {
$l_str_arrow = $l_str_arrow_user_defined;
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}
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// Wrap the arrow in a @media print { display:hidden } span.
$l_str_footnote_arrow = '<span class="footnote_index_arrow">';
$l_str_footnote_arrow .= $l_str_arrow . '</span>';
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} else {
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// If the backlink symbol isn’t enabled, set it to empty.
$l_str_arrow = '';
$l_str_footnote_arrow = '';
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}
/**
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* Backlink separator.
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*
* - 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.
*/
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if ( MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_BACKLINKS_SEPARATOR_ENABLED ) ) ) {
// Check if it is input-configured.
$l_str_separator = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_BACKLINKS_SEPARATOR_CUSTOM );
if ( empty( $l_str_separator ) ) {
// If it is not, check which option is on.
$l_str_separator_option = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_BACKLINKS_SEPARATOR_OPTION );
switch ( $l_str_separator_option ) {
case 'comma':
$l_str_separator = ',';
break;
case 'semicolon':
$l_str_separator = ';';
break;
case 'en_dash':
$l_str_separator = '&nbsp;&#x2013;';
break;
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}
}
} else {
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$l_str_separator = '';
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}
/**
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* Backlink terminator.
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*
* Initially a dot was appended in the table row template.
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*
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* @since 2.0.6 a dot after footnote numbers is discarded as not localizable;
* making it optional was envisaged.
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* @since 2.1.4 the terminator is optional, has options, and is configurable.
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*/
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if ( MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_BACKLINKS_TERMINATOR_ENABLED ) ) ) {
// Check if it is input-configured.
$l_str_terminator = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_BACKLINKS_TERMINATOR_CUSTOM );
if ( empty( $l_str_terminator ) ) {
// If it is not, check which option is on.
$l_str_terminator_option = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_BACKLINKS_TERMINATOR_OPTION );
switch ( $l_str_terminator_option ) {
case 'period':
$l_str_terminator = '.';
break;
case 'parenthesis':
$l_str_terminator = ')';
break;
case 'colon':
$l_str_terminator = ':';
break;
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}
}
} else {
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$l_str_terminator = '';
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}
/**
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* Line breaks.
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*
* - 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.
*/
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$l_str_line_break = MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_BACKLINKS_LINE_BREAKS_ENABLED ) ) ? '<br />' : ' ';
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/**
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* Line breaks for source readability.
*
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* For maintenance and support, table rows in the reference container should be
* separated by an empty line. So we add these line breaks for source readability.
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* Before the first table row (breaks between rows are ~200 lines below).
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*/
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$l_str_body = "\r\n\r\n";
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/**
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* Reference container table row template load.
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*
* - 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
*/
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// When combining identical footnotes is turned on, another template is needed.
if ( MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_COMBINE_IDENTICAL_FOOTNOTES ) ) ) {
// The combining template allows for backlink clusters and supports cell clicking for single notes.
$l_obj_template = new MCI_Footnotes_Template( MCI_Footnotes_Template::C_STR_PUBLIC, 'reference-container-body-combi' );
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} else {
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// When 3-column layout is turned on (only available if combining is turned off).
if ( MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_3COLUMN_LAYOUT_ENABLE ) ) ) {
$l_obj_template = new MCI_Footnotes_Template( MCI_Footnotes_Template::C_STR_PUBLIC, 'reference-container-body-3column' );
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} else {
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// When switch symbol and index is turned on, and combining and 3-columns are off.
if ( MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_BACKLINK_SYMBOL_SWITCH ) ) ) {
$l_obj_template = new MCI_Footnotes_Template( MCI_Footnotes_Template::C_STR_PUBLIC, 'reference-container-body-switch' );
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} else {
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// Default is the standard template.
$l_obj_template = new MCI_Footnotes_Template( MCI_Footnotes_Template::C_STR_PUBLIC, 'reference-container-body' );
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}
}
}
/**
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* Switch backlink symbol and footnote number.
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*
* - Bugfix: Reference container: option to append symbol (prepended by default), thanks to @spaceling code contribution.
*
* @since 2.1.1
* @date 2020-11-16T2024+0100
*
* @contributor @spaceling
* @link https://wordpress.org/support/topic/change-the-position-5/#post-13615994
*
*
* - Bugfix: Reference container: Backlink symbol: support for appending when combining identicals is on.
*
* @since 2.1.4
* @date 2020-11-26T1633+0100
*/
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$l_bool_symbol_switch = MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_BACKLINK_SYMBOL_SWITCH ) );
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// Loop through all footnotes found in the page.
$num_footnotes = count( self::$a_arr_footnotes );
for ( $l_int_index = 0; $l_int_index < $num_footnotes; $l_int_index++ ) {
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// Get footnote text.
$l_str_footnote_text = self::$a_arr_footnotes[ $l_int_index ];
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// If footnote is empty, go to the next one;.
// With combine identicals turned on, identicals will be deleted and are skipped.
if ( empty( $l_str_footnote_text ) ) {
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continue;
}
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// Generate content of footnote index cell.
$l_int_first_footnote_index = ( $l_int_index + 1 );
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// Get the footnote index string and.
// Keep supporting legacy index placeholder.
$l_str_footnote_id = MCI_Footnotes_Convert::index( ( $l_int_index + 1 ), MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_COUNTER_STYLE ) );
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/**
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* Case of only one backlink per table row.
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*
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* If enabled, and for the case the footnote is single, compose hard link.
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*/
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// Define anyway.
$l_str_hard_link_address = '';
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if ( self::$a_bool_hard_links_enable ) {
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/**
* 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
*/
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if ( MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_BACKLINK_TOOLTIP_ENABLE ) ) ) {
$l_str_use_backbutton_hint = ' title="';
$l_str_use_backbutton_hint .= MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_BACKLINK_TOOLTIP_TEXT );
$l_str_use_backbutton_hint .= '"';
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} else {
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$l_str_use_backbutton_hint = '';
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}
/**
* Compose fragment ID anchor with offset, for use in reference container.
* Empty span, child of empty span, to avoid tall dotted rectangles in browser.
*/
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$l_str_footnote_anchor_element = '<span class="footnote_item_base"><span id="';
$l_str_footnote_anchor_element .= self::$a_str_footnote_link_slug;
$l_str_footnote_anchor_element .= self::$a_str_post_container_id_compound;
$l_str_footnote_anchor_element .= $l_str_footnote_id;
$l_str_footnote_anchor_element .= '" class="footnote_item_anchor"></span></span>';
// Compose optional hard link address.
$l_str_hard_link_address = ' href="#';
$l_str_hard_link_address .= self::$a_str_referrer_link_slug;
$l_str_hard_link_address .= self::$a_str_post_container_id_compound;
$l_str_hard_link_address .= $l_str_footnote_id . '"';
$l_str_hard_link_address .= $l_str_use_backbutton_hint;
// Compose optional opening link tag with optional hard link, mandatory for instance.
self::$a_str_link_open_tag = '<a' . $l_str_hard_link_address;
self::$a_str_link_open_tag = ' class="footnote_hard_back_link">';
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} else {
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// Define as empty, too.
$l_str_footnote_anchor_element = '';
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}
/**
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* Support for combining identicals: compose enumerated backlinks.
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*
* - 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.
*/
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// Set a flag to check for the combined status of a footnote item.
$l_bool_flag_combined = false;
// Set otherwise unused variables as empty to avoid screwing up the placeholder array.
$l_str_backlink_event = '';
$l_str_footnote_backlinks = '';
$l_str_footnote_reference = '';
if ( MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_COMBINE_IDENTICAL_FOOTNOTES ) ) ) {
// ID, optional hard link address, and class.
$l_str_footnote_reference = '<' . self::$a_str_link_span;
$l_str_footnote_reference .= ' id="footnote_plugin_reference_';
$l_str_footnote_reference .= self::$a_int_post_id;
$l_str_footnote_reference .= '_' . self::$a_int_reference_container_id;
$l_str_footnote_reference .= "_$l_str_footnote_id\"";
if ( self::$a_bool_hard_links_enable ) {
$l_str_footnote_reference .= ' href="#';
$l_str_footnote_reference .= self::$a_str_referrer_link_slug;
$l_str_footnote_reference .= self::$a_str_post_container_id_compound;
$l_str_footnote_reference .= $l_str_footnote_id . '"';
$l_str_footnote_reference .= $l_str_use_backbutton_hint;
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}
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$l_str_footnote_reference .= ' class="footnote_backlink"';
// The click event goes in the table cell if footnote remains single.
$l_str_backlink_event = ' onclick="footnote_move_to_anchor_';
$l_str_backlink_event .= self::$a_int_post_id;
$l_str_backlink_event .= '_' . self::$a_int_reference_container_id;
$l_str_backlink_event .= "('footnote_plugin_tooltip_";
$l_str_backlink_event .= self::$a_int_post_id;
$l_str_backlink_event .= '_' . self::$a_int_reference_container_id;
$l_str_backlink_event .= "_$l_str_footnote_id');\"";
// The dedicated template enumerating backlinks uses another variable.
$l_str_footnote_backlinks = $l_str_footnote_reference;
// Append the click event right to the backlink item for enumerations;.
// Else it goes in the table cell.
$l_str_footnote_backlinks .= $l_str_backlink_event . '>';
$l_str_footnote_reference .= '>';
// Append the optional offset anchor for hard links.
if ( self::$a_bool_hard_links_enable ) {
$l_str_footnote_reference .= $l_str_footnote_anchor_element;
$l_str_footnote_backlinks .= $l_str_footnote_anchor_element;
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}
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// Continue both single note and notes cluster, depending on switch option status.
if ( $l_bool_symbol_switch ) {
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$l_str_footnote_reference .= "$l_str_footnote_id$l_str_footnote_arrow";
$l_str_footnote_backlinks .= "$l_str_footnote_id$l_str_footnote_arrow";
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} else {
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$l_str_footnote_reference .= "$l_str_footnote_arrow$l_str_footnote_id";
$l_str_footnote_backlinks .= "$l_str_footnote_arrow$l_str_footnote_id";
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}
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// If that is the only footnote with this text, we’re almost done..
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// Check if it isn't the last footnote in the array.
if ( $l_int_first_footnote_index < count( self::$a_arr_footnotes ) ) {
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// Get all footnotes that haven't passed yet.
$num_footnotes = count( self::$a_arr_footnotes );
for ( $l_int_check_index = $l_int_first_footnote_index; $l_int_check_index < $num_footnotes; $l_int_check_index++ ) {
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// Check if a further footnote is the same as the actual one.
if ( self::$a_arr_footnotes[ $l_int_check_index ] === $l_str_footnote_text ) {
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// If so, set the further footnote as empty so it won't be displayed later.
self::$a_arr_footnotes[ $l_int_check_index ] = '';
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// Set the flag to true for the combined status.
$l_bool_flag_combined = true;
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// Update the footnote ID.
$l_str_footnote_id = MCI_Footnotes_Convert::index( ( $l_int_check_index + 1 ), MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_COUNTER_STYLE ) );
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// Resume composing the backlinks enumeration.
$l_str_footnote_backlinks .= "$l_str_separator</";
$l_str_footnote_backlinks .= self::$a_str_link_span . '>';
$l_str_footnote_backlinks .= $l_str_line_break;
$l_str_footnote_backlinks .= '<' . self::$a_str_link_span;
$l_str_footnote_backlinks .= ' id="footnote_plugin_reference_';
$l_str_footnote_backlinks .= self::$a_int_post_id;
$l_str_footnote_backlinks .= '_' . self::$a_int_reference_container_id;
$l_str_footnote_backlinks .= "_$l_str_footnote_id\"";
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// Insert the optional hard link address.
if ( self::$a_bool_hard_links_enable ) {
$l_str_footnote_backlinks .= ' href="#';
$l_str_footnote_backlinks .= self::$a_str_referrer_link_slug;
$l_str_footnote_backlinks .= self::$a_str_post_container_id_compound;
$l_str_footnote_backlinks .= $l_str_footnote_id . '"';
$l_str_footnote_backlinks .= $l_str_use_backbutton_hint;
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}
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$l_str_footnote_backlinks .= ' class="footnote_backlink"';
$l_str_footnote_backlinks .= ' onclick="footnote_move_to_anchor_';
$l_str_footnote_backlinks .= self::$a_int_post_id;
$l_str_footnote_backlinks .= '_' . self::$a_int_reference_container_id;
$l_str_footnote_backlinks .= "('footnote_plugin_tooltip_";
$l_str_footnote_backlinks .= self::$a_int_post_id;
$l_str_footnote_backlinks .= '_' . self::$a_int_reference_container_id;
$l_str_footnote_backlinks .= "_$l_str_footnote_id');\">";
// Append the offset anchor for optional hard links.
if ( self::$a_bool_hard_links_enable ) {
$l_str_footnote_backlinks .= '<span class="footnote_item_base"><span id="';
$l_str_footnote_backlinks .= self::$a_str_footnote_link_slug;
$l_str_footnote_backlinks .= self::$a_str_post_container_id_compound;
$l_str_footnote_backlinks .= $l_str_footnote_id;
$l_str_footnote_backlinks .= '" class="footnote_item_anchor"></span></span>';
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}
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$l_str_footnote_backlinks .= $l_bool_symbol_switch ? '' : $l_str_footnote_arrow;
$l_str_footnote_backlinks .= $l_str_footnote_id;
$l_str_footnote_backlinks .= $l_bool_symbol_switch ? $l_str_footnote_arrow : '';
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}
}
}
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// Append terminator and end tag.
$l_str_footnote_reference .= $l_str_terminator . '</' . self::$a_str_link_span . '>';
$l_str_footnote_backlinks .= $l_str_terminator . '</' . self::$a_str_link_span . '>';
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}
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// Line wrapping of URLs already fixed, see above.
// Get reference container item text if tooltip text goes separate.
$l_int_tooltip_text_length = strpos( $l_str_footnote_text, self::$a_str_tooltip_shortcode );
$l_bool_has_tooltip_text = ! $l_int_tooltip_text_length ? false : true;
if ( $l_bool_has_tooltip_text ) {
$l_str_not_tooltip_text = substr( $l_str_footnote_text, ( $l_int_tooltip_text_length + self::$a_int_tooltip_shortcode_length ) );
self::$a_bool_mirror_tooltip_text = MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_TOOLTIP_EXCERPT_MIRROR_ENABLE ) );
if ( self::$a_bool_mirror_tooltip_text ) {
$l_str_tooltip_text = substr( $l_str_footnote_text, 0, $l_int_tooltip_text_length );
$l_str_reference_text_introducer = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_TOOLTIP_EXCERPT_MIRROR_SEPARATOR );
$l_str_reference_text = $l_str_tooltip_text . $l_str_reference_text_introducer . $l_str_not_tooltip_text;
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} else {
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$l_str_reference_text = $l_str_not_tooltip_text;
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}
} else {
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$l_str_reference_text = $l_str_footnote_text;
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}
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// Replace all placeholders in table row template.
$l_obj_template->replace(
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array(
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// Placeholder used in all templates.
'text' => $l_str_reference_text,
// Used in standard layout W/O COMBINED FOOTNOTES.
'post_id' => self::$a_int_post_id,
'container_id' => self::$a_int_reference_container_id,
'note_id' => MCI_Footnotes_Convert::index( $l_int_first_footnote_index, MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_COUNTER_STYLE ) ),
'link-start' => self::$a_str_link_open_tag,
'link-end' => self::$a_str_link_close_tag,
'link-span' => self::$a_str_link_span,
'terminator' => $l_str_terminator,
'anchor-element' => $l_str_footnote_anchor_element,
'hard-link' => $l_str_hard_link_address,
// Used in standard layout WITH COMBINED IDENTICALS TURNED ON.
'pointer' => $l_bool_flag_combined ? '' : ' pointer',
'event' => $l_bool_flag_combined ? '' : $l_str_backlink_event,
'backlinks' => $l_bool_flag_combined ? $l_str_footnote_backlinks : $l_str_footnote_reference,
// Legacy placeholders for use in legacy layout templates.
'arrow' => $l_str_footnote_arrow,
'index' => $l_str_footnote_id,
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)
);
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$l_str_body .= $l_obj_template->get_content();
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// Extra line breaks for page source readability.
$l_str_body .= "\r\n\r\n";
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$l_obj_template->reload();
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}
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// Call again for robustness when priority levels don’t match any longer.
self::$a_int_scroll_offset = intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_FOOTNOTES_SCROLL_OFFSET ) );
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// Streamline.
$l_bool_collapse_default = MCI_Footnotes_Convert::to_bool( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_COLLAPSE ) );
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/**
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* Reference container label.
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*
* - Bugfix: Reference container: Label: set empty label to U+202F NNBSP for more robustness, thanks to @lukashuggenberg feedback.
*
* @since 2.4.0
* @date 2021-01-04T0504+0100
*
* @reporter @lukashuggenberg
*
* Themes may drop-cap a first letter of initial paragraphs, like this label.
* In case of empty label that would apply to the left half button character.
* Hence the point in setting an empty label to U+202F NARROW NO-BREAK SPACE.
*/
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$l_str_reference_container_label = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_NAME );
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/**
* 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/
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*
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* @reporter @pkverma99
* @link https://wordpress.org/support/topic/footnotes-wp-rocket/#post-14076188
*/
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$l_str_script_mode = MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_FOOTNOTES_REFERENCE_CONTAINER_SCRIPT_MODE );
if ( 'jquery' === $l_str_script_mode ) {
// Load 'templates/public/reference-container.html'.
$l_obj_template_container = new MCI_Footnotes_Template( MCI_Footnotes_Template::C_STR_PUBLIC, 'reference-container' );
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} else {
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// Load 'templates/public/js-reference-container.html'.
$l_obj_template_container = new MCI_Footnotes_Template( MCI_Footnotes_Template::C_STR_PUBLIC, 'js-reference-container' );
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}
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$l_obj_template_container->replace(
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array(
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'post_id' => self::$a_int_post_id,
'container_id' => self::$a_int_reference_container_id,
'element' => MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_LABEL_ELEMENT ),
'name' => empty( $l_str_reference_container_label ) ? '&#x202F;' : $l_str_reference_container_label,
'button-style' => ! $l_bool_collapse_default ? 'display: none;' : '',
'style' => $l_bool_collapse_default ? 'display: none;' : '',
'content' => $l_str_body,
'scroll-offset' => ( self::$a_int_scroll_offset / 100 ),
'scroll-duration' => intval( MCI_Footnotes_Settings::instance()->get( MCI_Footnotes_Settings::C_INT_FOOTNOTES_SCROLL_DURATION ) ),
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)
);
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// Free all found footnotes if reference container will be displayed.
self::$a_arr_footnotes = array();
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return $l_obj_template_container->get_content();
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}
}
Reference in a new issue Copy permalink