c3c0515308
git-svn-id: https://plugins.svn.wordpress.org/footnotes/trunk@2458511 b8457f37-d9ea-0310-8a92-e5e31aec5664
1626 lines
86 KiB
PHP
1626 lines
86 KiB
PHP
<?php
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/**
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* Includes the core function of the Plugin - Search and Replace the Footnotes.
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*
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* @filesource
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* @author Stefan Herndler
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* @since 1.5.0
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*
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* Edited for v2.0.0 and following.
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*
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* Last modified: 2021-01-07T2219+0100
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*
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* @since 2.0.5 debug autoload / infinite scroll through added post ID, contributed by @docteurfitness
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* @see <https://wordpress.org/support/topic/auto-load-post-compatibility-update/>
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*
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* @since 2.0.9 REMOVED the_post HOOK 2020-11-08T1839+0100
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*
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* @since 2.1.0 promote the 'Continue reading' button from localization to configuration 2020-11-08T2146+0100
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*
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* @since 2.1.1 combining identical footnotes: fixed dead links, thanks to @happyches 2020-11-14T2233+0100
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* @see <https://wordpress.org/support/topic/custom-css-for-jumbled-references/>
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*
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* @since 2.1.1 fix start pages by option to hide ref container, thanks to @dragon013
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* @see <https://wordpress.org/support/topic/possible-to-hide-it-from-start-page/>
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*
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* @since 2.1.1 options fixing ref container layout and referrer vertical alignment 2020-11-16T2024+0100
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*
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* @since 2.1.1 priority level option fixing ref container relative position, thanks to june01, @spaceling, @imeson 2020-11-17T0254+0100
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* @see <https://wordpress.org/support/topic/change-the-position-5/>
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*
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* @since 2.1.2 priority level settings for all other hooks, thanks to @nikelaos 2020-11-19T1849+0100
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* @see <https://wordpress.org/support/topic/doesnt-work-any-more-11/#post-13676705>
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*
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* @since 2.1.4 fix line wrapping of URLs based on pattern, not link element 2020-11-25T0837+0100
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*
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* @since 2.1.4 fix issues with link elements by making them optional 2020-11-26T1051+0100
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*
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* @since 2.1.4 support appending arrow when combining identicals is on 2020-11-26T1633+0100
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*
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* @since 2.1.4 disable or select backlink separator and terminator 2020-11-28T1048+0100
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*
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* @since 2.1.4 optional line breaks to stack enumerated backlinks 2020-11-28T1049+0100
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*
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* @since 2.1.4 ref container column width and tooltip font size settings 2020-12-03T0954+0100
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*
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* @since 2.1.4 scroll offset and duration settings 2020-12-05T0538+0100
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*
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* @since 2.1.4 tooltip display duration settings 2020-12-06T1320+0100
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*
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* @since 2.1.5 URL wrap: exclude image source too, thanks to @bjrnet21
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* @see <https://wordpress.org/support/topic/2-1-4-breaks-on-my-site-images-dont-show/>
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*
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* @since 2.1.6 option to disable URL line wrapping 2020-12-09T1606+0100
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*
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* @since 2.1.6 add catch-all exclusion to fix URL line wrapping, thanks to @a223123131 2020-12-09T1921+0100
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* @see <https://wordpress.org/support/topic/broken-layout-starting-version-2-1-4/>
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*
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* @since 2.2.0 support for custom position shortcode for reference container, thanks to @hamshe 2020-12-13T2058+0100
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* @see <https://wordpress.org/support/topic/reference-container-in-elementor/>
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*
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* @since 2.2.3 custom CSS from new setting in header after legacy 2020-12-15T1128+0100
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*
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* @since 2.2.5 connect alternative tooltips to position and timing settings 2020-12-18T1113+0100
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*
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* @since 2.2.5 delete unused position shortcode when ref container in widget or footer, thanks to @hamshe 2020-12-18T1437+0100
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* @see <https://wordpress.org/support/topic/reference-container-in-elementor/#post-13784126>
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*
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* @since 2.2.5 options for label element and label bottom border, thanks to @markhillyer 2020-12-18T1447+0100
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* @see <https://wordpress.org/support/topic/how-do-i-eliminate-the-horizontal-line-beneath-the-reference-container-heading/>
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*
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* @since 2.2.6 URL wrap: make the quotation mark optional in the exclusion regex, thanks to @spiralofhope2 2020-12-23T0409+0100
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* @see <https://wordpress.org/support/topic/two-links-now-breaks-footnotes-with-blogtext/>
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*
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* @since 2.2.7 revert that change in the exclusion regex, thanks to @rjl20, @spaceling, @friedrichnorth, @bernardzit 2020-12-23T1046+0100
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* @see <https://wordpress.org/support/topic/two-links-now-breaks-footnotes-with-blogtext/>
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* @see <https://wordpress.org/support/topic/footnotes-dont-show-after-update-to-2-2-6/>
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*
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* @since 2.2.8 URL wrap: correct lookbehind by duplicating it with and without quotation mark class 2020-12-23T1108+0100
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*
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* @since 2.2.9 URL wrap: account for RFC 2396 allowed characters in parameter names 2020-12-24T1956+0100
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* @see <https://stackoverflow.com/questions/814700/http-url-allowed-characters-in-parameter-names>
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*
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* @since 2.2.9 Reference containers, widget_text hook: support for multiple containers in a page, thanks to @justbecuz 2020-12-25T0338+0100
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* @see <https://wordpress.org/support/topic/reset-footnotes-to-1/#post-13662830>
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*
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* @since 2.2.9 URL wrap: exclude URLs also where the equals sign is preceded by an entity or character reference 2020-12-25T1251+0100
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*
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* @since 2.2.10 URL wrap: support also file transfer protocol URLs 2020-12-25T2220+0100
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*
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* @since 2.2.10 Reference container: add option for table borders to revert 2.0.0/2.0.1 change made on user request, thanks to @noobishh 2020-12-25T2304+0100
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* @see <https://wordpress.org/support/topic/borders-25/>
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*
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* @since 2.3.0 Reference container: convert top padding to margin and make it a setting, thanks to @hamshe
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* @see <https://wordpress.org/support/topic/reference-container-in-elementor/#post-13786635>
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*
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* @since 2.3.0 optional hard links in referrers and backlinks for AMP compatibility, thanks to @psykonevro and @martinneumannat
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* @see <https://wordpress.org/support/topic/making-it-amp-compatible/>
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* @see <https://wordpress.org/support/topic/footnotes-is-not-amp-compatible/>
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*
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* @since 2.3.0 swap Custom CSS migration Boolean from 'migration complete' to 'show legacy' 2020-12-27T1243+0100
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*
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* @since 2.4.0 syntax validation for balanced footnote start and end tags 2021-01-01T0227+0100
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*
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* @since 2.4.0 initialize scroll offset variable to 34 as a more robust default, thanks to @lukashuggenberg 2021-01-04T0504+0100
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*
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* @since 2.4.0 set empty reference container label to NNBSP to make it more robust, thanks to @lukashuggenberg 2021-01-04T0504+0100
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*
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* @since 2.4.0 optimize template load and process, thanks to @misfist 2021-01-04T1355+0100
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*
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* @since 2.4.0 initialize hard link address as empty to fix undefined variable bug, thanks to @a223123131 2021-01-04T1622+0100
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*
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* @since 2.5.0 Shortcode syntax validation: exclude certain cases involving scripts, thanks to @andreasra 2021-01-07T0824+0100
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* @since 2.5.0 Shortcode syntax validation: complete message with hint about setting, thanks to @andreasra
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* @since 2.5.0 Shortcode syntax validation: limit length of quoted string to 300 characters, thanks to @andreasra
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* @see <https://wordpress.org/support/topic/warning-unbalanced-footnote-start-tag-short-code-before/>
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*
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* @since 2.5.0 Hooks: support for footnotes on category pages, thanks to @vitaefit bug report, thanks to @misfist code contribution
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* @see <https://wordpress.org/support/topic/footnote-doesntwork-on-category-page/>
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*
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* @since 2.5.1 Hooks: support for footnotes in Popup Maker popups, thanks to @squatcher bug report
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* @see <https://wordpress.org/support/topic/footnotes-use-in-popup-maker/>
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*/
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// If called directly, abort:
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defined( 'ABSPATH' ) or die;
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/**
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* Looks for Footnotes short codes and replaces them. Also displays the Reference Container.
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*
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* @author Stefan Herndler
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* @since 1.5.0
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*/
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class MCI_Footnotes_Task {
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/**
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* PROPERTIES
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*/
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/**
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* Contains all footnotes found on current public page.
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*
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* @author Stefan Herndler
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* @since 1.5.0
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* @var array
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*/
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public static $a_arr_Footnotes = array();
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/**
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* Flag if the display of 'LOVE FOOTNOTES' is allowed on the current public page.
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*
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* @author Stefan Herndler
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* @since 1.5.0
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* @var bool
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*/
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public static $a_bool_AllowLoveMe = true;
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/**
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* Prefix for the Footnote html element ID.
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*
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* @author Stefan Herndler
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* @since 1.5.8
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* @var string
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*/
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public static $a_str_Prefix = "";
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/**
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* INFINITE SCROLL / AUTOLOAD, ARCHIVE VIEW
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*
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* Multiple posts are appended to each other, functions and note IDs must be disambiguated.
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*
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* Contribution thankfully received from @docteurfitness
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* @see <https://wordpress.org/support/topic/auto-load-post-compatibility-update/>
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* @since 2.0.5
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* @var int
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*
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* post ID to make everything unique wrt infinite scroll and archive view:
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* (will be filled in by the next possible occasion; PHP seems to prohibit doing so here)
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*/
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public static $l_int_PostId = '';
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/**
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* Reference container ID
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*
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* This ID disambiguates multiple reference containers in a page
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* as they may occur when the widget_text hook is active and the page
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* is built with Elementor and has an accordion or similar toggle sections.
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*
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* Is incremented each time after a reference container is inserted.
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*
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* Thanks to @justbecuz
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* @see <https://wordpress.org/support/topic/reset-footnotes-to-1/#post-13662830>
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* @since 2.2.9
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* @var int
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*/
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public static $l_int_ReferenceContainerId = 1;
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/**
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* Load tooltip inline script only if jQuery tooltips are enabled
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* Streamline process depending on tooltip enabled status
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*
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* @author Patrizia Lutz @misfist
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*
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* @since 2.4.0d0
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*/
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public static $l_bool_TooltipsEnabled = false;
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public static $l_bool_AlternativeTooltipsEnabled = false;
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/**
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* Hard links for AMP
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*
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* Optional hard links in referrers and backlinks for AMP compatibility
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*
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* Thanks to @psykonevro and @martinneumannat
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* @see <https://wordpress.org/support/topic/making-it-amp-compatible/>
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* @see <https://wordpress.org/support/topic/footnotes-is-not-amp-compatible/>
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* @since 2.3.0
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* @var bool|str|int
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*
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* @since 2.4.0 initialize scroll offset to a safety default value 34 right here 2021-01-03T2055+0100
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* By accident, this variable may not be updated with settings storage.
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* Websites may use high fixed headers not contracting at scroll.
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*/
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public static $l_bool_HardLinksEnable = false;
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public static $l_str_ReferrerLinkSlug = 'r';
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public static $l_str_FootnoteLinkSlug = 'f';
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public static $l_str_LinkIdsSeparator = '+';
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public static $l_str_PostContainerIdCompound = '';
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// scroll offset may now need to get into inline CSS; default:
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public static $l_int_ScrollOffset = 34;
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/**
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* OPTIONAL LINK ELEMENT FOR FOOTNOTE REFERRERS AND BACKLINKS
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*
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* STYLING:
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* Link color is preferred for referrers and backlinks.
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* Setting a global link color is a common feature in WordPress themes.
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* CSS does not support identifiers for link colors (color: link | hover | active | visited)
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* These are only supported as pseudo-classes of the link element.
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* Hence the link element must be present for styling purposes.
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* But styling these elements with the link color is not universally preferred.
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* If not, the very presence of the link elements may need to be avoided.
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*
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* FUNCTIONALITY:
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* Although widely used for that purpose, hyperlinks are disliked for footnote linking.
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* Browsers may need to be prevented from logging these clicks in the browsing history,
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* as logging compromises the usability of the 'return to previous' button in browsers.
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* For that purpose, and for scroll animation, this linking is performed by JavaScript.
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*
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* Link elements also raise further concerns, so that their useless proliferation needs
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* to be mitigated. By contrast, due to an insufficiency in the CSS standard, real link
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* elements are required to get the link color, as opposed to named colors on the basis
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* of the already supported pseudo-classes :link, :hover, :active and :visited that can
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* still not be used in color names.
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*
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* @since 2.0.0 added the link elements with hard links
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* @since 2.0.4 removed the hard links on user request
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* @see <https://wordpress.org/support/topic/hyperlinked-footnotes-creating-excessive-back-history/>
|
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* @since 2.1.4 made link elements optional for styling purposes, 2020-11-25T1306+0100
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* @since 2.3.0 this variable keeps its default value if hard links are enabled 2020-12-30T2313+0100
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*
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* @var str
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*/
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public static $l_str_LinkSpan = 'span';
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public static $l_str_LinkOpenTag = '';
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public static $l_str_LinkCloseTag = '';
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/**
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* SYNTAX VALIDATION
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*
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* This part of the algorithm first checks for balanced footnote opening and closing tag
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* short codes. The first encountered error triggers the display of a warning below the
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* post title and cancellation of further parsing.
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*
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* Unbalanced short codes have caused significant trouble because they are hard to detect.
|
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* Any compiler or other tool reports syntax errors in the first place. Footnotes’ exception
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* is considered a design flaw, and the feature is released as a bug fix after overdue 2.3.0
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* released in urgency to provide AMP compat before 2021.
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*
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* @since 2.4.0
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* @var bool
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*/
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public static $l_bool_SyntaxErrorFlag = true;
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/**
|
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* METHODS
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*/
|
||
|
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/**
|
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* Register WordPress Hooks to replace Footnotes in the content of a public page.
|
||
*
|
||
* @author Stefan Herndler
|
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* @since 1.5.0
|
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*
|
||
* Edited:
|
||
*
|
||
* the_post hook:
|
||
* @since 1.5.4 added the_post hook in response to user request for custom post types
|
||
* @see <https://wordpress.org/support/topic/doesnt-work-in-custon-post-types/#post-5339110>
|
||
*
|
||
* @since 2.0.9 removed the_post hook after its default enabling caused multiple issues 2020-11-08T1839+0100
|
||
* @see <https://wordpress.org/support/topic/change-the-position-5/page/2/#post-13630114
|
||
* @see <https://wordpress.org/support/topic/footnotes-appearing-in-header/#post-13630303>
|
||
* @see <https://wordpress.org/support/topic/footnotes-appearing-in-header/page/2/#post-13630799>
|
||
* @see <https://wordpress.org/support/topic/no-footnotes-anymore/#post-13813233>
|
||
*
|
||
* Category pages:
|
||
* @since 2.5.0 support for the term_description hook, thanks to @vitaefit bug report, thanks to @misfist code contribution
|
||
* @see <https://wordpress.org/support/topic/footnote-doesntwork-on-category-page/>
|
||
*
|
||
* Popup Maker popups:
|
||
* @since 2.5.1 support for the pum_popup_content hook, thanks to @squatcher bug report
|
||
* @see <https://wordpress.org/support/topic/footnotes-use-in-popup-maker/>
|
||
*
|
||
* Priority level:
|
||
* @since 2.0.5 through v2.0.7 changes to priority 2020-11-02T0330+0100..2020-11-06T1344+0100
|
||
* @since 2.1.1 add setting for the_content
|
||
* @since 2.1.2 add settings for 4 other hooks 2020-11-19T1248+0100
|
||
*
|
||
* Setting the_content priority to "10" instead of PHP_INT_MAX i.e. 9223372036854775807
|
||
* makes the footnotes reference container display beneath the post and above other
|
||
* features added by other plugins, e.g. related post lists and social buttons.
|
||
* For YARPP to display related posts below the Footnotes reference container,
|
||
* priority needs to be at least 1200.
|
||
* Requested by users: <https://wordpress.org/support/topic/change-the-position-5/>
|
||
* Documentation: <https://codex.wordpress.org/Plugin_API/#Hook_in_your_Filter>
|
||
*
|
||
* Default remains PHP_INT_MAX.
|
||
* PHP_INT_MAX cannot be reset by leaving the number box empty. because browsers
|
||
* (WebKit) don’t allow it, so we must resort to -1.
|
||
*/
|
||
public function registerHooks() {
|
||
|
||
// get values from settings:
|
||
$p_int_TheTitlePriority = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_EXPERT_LOOKUP_THE_TITLE_PRIORITY_LEVEL));
|
||
$p_int_TheContentPriority = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_EXPERT_LOOKUP_THE_CONTENT_PRIORITY_LEVEL));
|
||
$p_int_TheExcerptPriority = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_EXPERT_LOOKUP_THE_EXCERPT_PRIORITY_LEVEL));
|
||
$p_int_WidgetTitlePriority = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_EXPERT_LOOKUP_WIDGET_TITLE_PRIORITY_LEVEL));
|
||
$p_int_WidgetTextPriority = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_EXPERT_LOOKUP_WIDGET_TEXT_PRIORITY_LEVEL));
|
||
|
||
// PHP_INT_MAX can be set by -1:
|
||
$p_int_TheTitlePriority = ($p_int_TheTitlePriority == -1) ? PHP_INT_MAX : $p_int_TheTitlePriority ;
|
||
$p_int_TheContentPriority = ($p_int_TheContentPriority == -1) ? PHP_INT_MAX : $p_int_TheContentPriority ;
|
||
$p_int_TheExcerptPriority = ($p_int_TheExcerptPriority == -1) ? PHP_INT_MAX : $p_int_TheExcerptPriority ;
|
||
$p_int_WidgetTitlePriority = ($p_int_WidgetTitlePriority == -1) ? PHP_INT_MAX : $p_int_WidgetTitlePriority;
|
||
$p_int_WidgetTextPriority = ($p_int_WidgetTextPriority == -1) ? PHP_INT_MAX : $p_int_WidgetTextPriority ;
|
||
|
||
|
||
// append custom css to the header
|
||
add_filter('wp_head', array($this, "wp_head"), PHP_INT_MAX);
|
||
|
||
// append the love and share me slug to the footer
|
||
add_filter('wp_footer', array($this, "wp_footer"), PHP_INT_MAX);
|
||
|
||
if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_EXPERT_LOOKUP_THE_TITLE))) {
|
||
add_filter('the_title', array($this, "the_title"), $p_int_TheTitlePriority);
|
||
}
|
||
|
||
// custom priority level for reference container relative positioning; default 98:
|
||
if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_EXPERT_LOOKUP_THE_CONTENT))) {
|
||
add_filter('the_content', array($this, "the_content"), $p_int_TheContentPriority);
|
||
|
||
// HOOK FOR CATEGORY PAGES:
|
||
// 2021-01-05T1402+0100
|
||
// see <https://wordpress.org/support/topic/footnote-doesntwork-on-category-page/#post-13866617>
|
||
add_filter('term_description', array($this, "the_content"), $p_int_TheContentPriority);
|
||
|
||
// HOOK FOR POPUP MAKER POPUPS:
|
||
// 2021-01-18T2038+0100
|
||
// see <https://wordpress.org/support/topic/footnotes-use-in-popup-maker/>
|
||
add_filter('pum_popup_content', array($this, "the_content"), $p_int_TheContentPriority);
|
||
}
|
||
|
||
if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_EXPERT_LOOKUP_THE_EXCERPT))) {
|
||
add_filter('the_excerpt', array($this, "the_excerpt"), $p_int_TheExcerptPriority);
|
||
}
|
||
if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_EXPERT_LOOKUP_WIDGET_TITLE))) {
|
||
add_filter('widget_title', array($this, "widget_title"), $p_int_WidgetTitlePriority);
|
||
}
|
||
if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_EXPERT_LOOKUP_WIDGET_TEXT))) {
|
||
add_filter('widget_text', array($this, "widget_text"), $p_int_WidgetTextPriority);
|
||
}
|
||
|
||
|
||
// REMOVED the_post HOOK 2020-11-08T1839+0100
|
||
//
|
||
//
|
||
|
||
|
||
// reset stored footnotes when displaying the header
|
||
self::$a_arr_Footnotes = array();
|
||
self::$a_bool_AllowLoveMe = true;
|
||
}
|
||
|
||
/**
|
||
* Outputs the custom css to the header of the public page.
|
||
*
|
||
* @author Stefan Herndler
|
||
* @since 1.5.0
|
||
*
|
||
* Edited:
|
||
* @since 2.1.1 option to hide ref container from start page
|
||
* @since 2.1.1 script for alternative tooltips
|
||
* @since 2.1.3 raise settings priority to override theme style sheets
|
||
* @since 2.1.4 tootip font size and backlink column width settings
|
||
* @since 2.2.5 options for label element and label bottom border, thanks to @markhillyer 2020-12-18T1447+0100
|
||
* @see <https://wordpress.org/support/topic/how-do-i-eliminate-the-horizontal-line-beneath-the-reference-container-heading/>
|
||
* @since 2.3.0 Reference container: convert top padding to margin and make it a setting, thanks to @hamshe
|
||
* @see <https://wordpress.org/support/topic/reference-container-in-elementor/#post-13786635>
|
||
*/
|
||
public function wp_head() {
|
||
|
||
// insert start tag without switching out of PHP:
|
||
echo "\r\n<style type=\"text/css\" media=\"all\">\r\n";
|
||
|
||
// display ref container on home page:
|
||
if (!MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_REFERENCE_CONTAINER_START_PAGE_ENABLE))) {
|
||
echo ".home .footnotes_reference_container { display: none; }\r\n";
|
||
}
|
||
|
||
// ref container top and bottom margins:
|
||
$l_int_ReferenceContainerTopMargin = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_REFERENCE_CONTAINER_TOP_MARGIN));
|
||
$l_int_ReferenceContainerBottomMargin = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_REFERENCE_CONTAINER_BOTTOM_MARGIN));
|
||
echo ".footnotes_reference_container {margin-top: ";
|
||
echo empty($l_int_ReferenceContainerTopMargin) ? '0' : $l_int_ReferenceContainerTopMargin;
|
||
echo "px !important; margin-bottom: ";
|
||
echo empty($l_int_ReferenceContainerBottomMargin) ? '0' : $l_int_ReferenceContainerBottomMargin;
|
||
echo "px !important;}\r\n";
|
||
|
||
// ref container label bottom border:
|
||
if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_REFERENCE_CONTAINER_LABEL_BOTTOM_BORDER))) {
|
||
echo ".footnote_container_prepare > ";
|
||
echo MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_LABEL_ELEMENT);
|
||
echo " {border-bottom: 1px solid #aaaaaa !important;}\r\n";
|
||
}
|
||
|
||
// ref container table row borders:
|
||
if ( MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_REFERENCE_CONTAINER_ROW_BORDERS_ENABLE))) {
|
||
echo ".footnotes_table, .footnotes_plugin_reference_row {";
|
||
echo "border: 1px solid #060606;";
|
||
echo " !important;}\r\n";
|
||
// adapt left padding to the presence of a border:
|
||
echo ".footnote_plugin_index, .footnote_plugin_index_combi {";
|
||
echo "padding-left: 6px !important}\r\n";
|
||
}
|
||
|
||
// ref container first column width and max-width:
|
||
$l_bool_ColumnWidthEnabled = MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_BACKLINKS_COLUMN_WIDTH_ENABLED));
|
||
$l_bool_ColumnMaxWidthEnabled = MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_BACKLINKS_COLUMN_MAX_WIDTH_ENABLED));
|
||
|
||
if ( $l_bool_ColumnWidthEnabled || $l_bool_ColumnMaxWidthEnabled ) {
|
||
echo ".footnote-reference-container { table-layout: fixed; }";
|
||
echo ".footnote_plugin_index, .footnote_plugin_index_combi {";
|
||
|
||
if ( $l_bool_ColumnWidthEnabled ) {
|
||
|
||
$l_int_ColumnWidthScalar = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_BACKLINKS_COLUMN_WIDTH_SCALAR);
|
||
$l_str_ColumnWidthUnit = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_BACKLINKS_COLUMN_WIDTH_UNIT);
|
||
|
||
if (!empty($l_int_ColumnWidthScalar)) {
|
||
if ($l_str_ColumnWidthUnit == '%') {
|
||
if ($l_int_ColumnWidthScalar > 100) {
|
||
$l_int_ColumnWidthScalar = 100;
|
||
}
|
||
}
|
||
} else {
|
||
$l_int_ColumnWidthScalar = 0;
|
||
}
|
||
|
||
echo " width: $l_int_ColumnWidthScalar$l_str_ColumnWidthUnit !important;";
|
||
}
|
||
|
||
if ( $l_bool_ColumnMaxWidthEnabled ) {
|
||
|
||
$l_int_ColumnMaxWidthScalar = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_BACKLINKS_COLUMN_MAX_WIDTH_SCALAR);
|
||
$l_str_ColumnMaxWidthUnit = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_BACKLINKS_COLUMN_MAX_WIDTH_UNIT);
|
||
|
||
if (!empty($l_int_ColumnMaxWidthScalar)) {
|
||
if ($l_str_ColumnMaxWidthUnit == '%') {
|
||
if ($l_int_ColumnMaxWidthScalar > 100) {
|
||
$l_int_ColumnMaxWidthScalar = 100;
|
||
}
|
||
}
|
||
} else {
|
||
$l_int_ColumnMaxWidthScalar = 0;
|
||
}
|
||
|
||
echo " max-width: $l_int_ColumnMaxWidthScalar$l_str_ColumnMaxWidthUnit !important;";
|
||
|
||
}
|
||
echo "}\r\n";
|
||
}
|
||
|
||
// hard links scroll offset:
|
||
self::$l_bool_HardLinksEnable = MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_HARD_LINKS_ENABLE));
|
||
self::$l_int_ScrollOffset = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_SCROLL_OFFSET));
|
||
if (self::$l_bool_HardLinksEnable) {
|
||
echo ".footnote_referrer_anchor, .footnote_item_anchor {bottom: ";
|
||
echo self::$l_int_ScrollOffset;
|
||
echo "vh;}\r\n";
|
||
}
|
||
|
||
// tooltips:
|
||
self::$l_bool_TooltipsEnabled = MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_MOUSE_OVER_BOX_ENABLED));
|
||
self::$l_bool_AlternativeTooltipsEnabled = MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_MOUSE_OVER_BOX_ALTERNATIVE));
|
||
|
||
if (self::$l_bool_TooltipsEnabled) {
|
||
|
||
echo '.footnote_tooltip {';
|
||
|
||
// tooltip appearance:
|
||
|
||
// font size:
|
||
echo ' font-size: ';
|
||
if(MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_MOUSE_OVER_BOX_FONT_SIZE_ENABLED))) {
|
||
echo MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_FLO_MOUSE_OVER_BOX_FONT_SIZE_SCALAR);
|
||
echo MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_MOUSE_OVER_BOX_FONT_SIZE_UNIT);
|
||
} else {
|
||
echo 'inherit';
|
||
}
|
||
echo ' !important;';
|
||
|
||
// text color:
|
||
$l_str_Color = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_MOUSE_OVER_BOX_COLOR);
|
||
if (!empty($l_str_Color)) {
|
||
printf(" color: %s !important;", $l_str_Color);
|
||
}
|
||
|
||
// background color:
|
||
$l_str_Background = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_MOUSE_OVER_BOX_BACKGROUND);
|
||
if (!empty($l_str_Background)) {
|
||
printf(" background-color: %s !important;", $l_str_Background);
|
||
}
|
||
|
||
// border width:
|
||
$l_int_BorderWidth = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_MOUSE_OVER_BOX_BORDER_WIDTH);
|
||
if (!empty($l_int_BorderWidth) && intval($l_int_BorderWidth) > 0) {
|
||
printf(" border-width: %dpx !important; border-style: solid !important;", $l_int_BorderWidth);
|
||
}
|
||
|
||
// border color:
|
||
$l_str_BorderColor = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_MOUSE_OVER_BOX_BORDER_COLOR);
|
||
if (!empty($l_str_BorderColor)) {
|
||
printf(" border-color: %s !important;", $l_str_BorderColor);
|
||
}
|
||
|
||
// corner radius:
|
||
$l_int_BorderRadius = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_MOUSE_OVER_BOX_BORDER_RADIUS);
|
||
if (!empty($l_int_BorderRadius) && intval($l_int_BorderRadius) > 0) {
|
||
printf(" border-radius: %dpx !important;", $l_int_BorderRadius);
|
||
}
|
||
|
||
// shadow color:
|
||
$l_str_BoxShadowColor = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_MOUSE_OVER_BOX_SHADOW_COLOR);
|
||
if (!empty($l_str_BoxShadowColor)) {
|
||
printf(" -webkit-box-shadow: 2px 2px 11px %s;", $l_str_BoxShadowColor);
|
||
printf(" -moz-box-shadow: 2px 2px 11px %s;", $l_str_BoxShadowColor);
|
||
printf(" box-shadow: 2px 2px 11px %s;", $l_str_BoxShadowColor);
|
||
}
|
||
|
||
// alternative tooltips:
|
||
if ( ! self::$l_bool_AlternativeTooltipsEnabled) {
|
||
|
||
// tooltip position:
|
||
$l_int_MaxWidth = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_MOUSE_OVER_BOX_MAX_WIDTH);
|
||
if (!empty($l_int_MaxWidth) && intval($l_int_MaxWidth) > 0) {
|
||
printf(" max-width: %dpx !important;", $l_int_MaxWidth);
|
||
}
|
||
echo "}\r\n";
|
||
|
||
} else {
|
||
echo "}\r\n";
|
||
|
||
// position:
|
||
echo ".footnote_tooltip.position {";
|
||
echo " width: " . intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_ALTERNATIVE_MOUSE_OVER_BOX_WIDTH)) . 'px;';
|
||
|
||
$l_str_AlternativePosition = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_ALTERNATIVE_MOUSE_OVER_BOX_POSITION);
|
||
$l_int_OffsetX = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_ALTERNATIVE_MOUSE_OVER_BOX_OFFSET_X));
|
||
|
||
if ($l_str_AlternativePosition == 'top left' || $l_str_AlternativePosition == 'bottom left') {
|
||
echo ' right: ' . ( !empty($l_int_OffsetX) ? $l_int_OffsetX : 0) . 'px;';
|
||
} else {
|
||
echo ' left: ' . ( !empty($l_int_OffsetX) ? $l_int_OffsetX : 0) . 'px;';
|
||
}
|
||
|
||
$l_int_OffsetY = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_ALTERNATIVE_MOUSE_OVER_BOX_OFFSET_Y));
|
||
|
||
if ($l_str_AlternativePosition == 'top left' || $l_str_AlternativePosition == 'top right') {
|
||
echo ' bottom: ' . ( !empty($l_int_OffsetY) ? $l_int_OffsetY : 0) . 'px;';
|
||
} else {
|
||
echo ' top: ' . ( !empty($l_int_OffsetY) ? $l_int_OffsetY : 0) . 'px;';
|
||
}
|
||
echo "}\r\n";
|
||
|
||
// timing:
|
||
// jQuery tooltip timing is in templates/public/tooltip.html, filled in after line 690 below.
|
||
echo ' .footnote_tooltip.shown {';
|
||
$l_int_FadeInDelay = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_IN_DELAY ));
|
||
$l_int_FadeInDuration = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_IN_DURATION ));
|
||
$l_int_FadeInDelay = !empty($l_int_FadeInDelay ) ? $l_int_FadeInDelay : '0';
|
||
$l_int_FadeInDuration = !empty($l_int_FadeInDuration ) ? $l_int_FadeInDuration : '0';
|
||
echo " transition-delay: $l_int_FadeInDelay" . 'ms;';
|
||
echo " transition-duration: $l_int_FadeInDuration" . 'ms;';
|
||
|
||
echo '} .footnote_tooltip.hidden {';
|
||
$l_int_FadeOutDelay = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_OUT_DELAY ));
|
||
$l_int_FadeOutDuration = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_OUT_DURATION));
|
||
$l_int_FadeOutDelay = !empty($l_int_FadeOutDelay ) ? $l_int_FadeOutDelay : '0';
|
||
$l_int_FadeOutDuration = !empty($l_int_FadeOutDuration ) ? $l_int_FadeOutDuration : '0';
|
||
echo " transition-delay: $l_int_FadeOutDelay" . 'ms;';
|
||
echo " transition-duration: $l_int_FadeOutDuration" . 'ms;';
|
||
|
||
echo "}\r\n";
|
||
|
||
}
|
||
}
|
||
|
||
// set custom CSS to override settings, not conversely:
|
||
// Legacy Custom CSS is used until it’s set to disappear after dashboard tab migration:
|
||
if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_CUSTOM_CSS_LEGACY_ENABLE))) {
|
||
echo MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_CUSTOM_CSS);
|
||
}
|
||
echo MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_CUSTOM_CSS_NEW);
|
||
|
||
// insert end tag without switching out of PHP:
|
||
echo "\r\n</style>\r\n";
|
||
|
||
// alternative tooltip script printed formatted not minified:
|
||
if (self::$l_bool_AlternativeTooltipsEnabled) {
|
||
?>
|
||
<script content="text/javascript">
|
||
function footnoteTooltipShow(footnoteTooltipId) {
|
||
document.getElementById(footnoteTooltipId).classList.remove('hidden');
|
||
document.getElementById(footnoteTooltipId).classList.add('shown');
|
||
}
|
||
function footnoteTooltipHide(footnoteTooltipId) {
|
||
document.getElementById(footnoteTooltipId).classList.remove('shown');
|
||
document.getElementById(footnoteTooltipId).classList.add('hidden');
|
||
}
|
||
</script>
|
||
<?php
|
||
};
|
||
}
|
||
|
||
/**
|
||
* Displays the 'LOVE FOOTNOTES' slug if enabled.
|
||
*
|
||
* @author Stefan Herndler
|
||
* @since 1.5.0
|
||
*
|
||
* Edited:
|
||
* @since 2.2.0 more options 2020-12-11T0506+0100
|
||
*/
|
||
public function wp_footer() {
|
||
if (MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_POSITION) == "footer") {
|
||
echo $this->ReferenceContainer();
|
||
}
|
||
// get setting for love and share this plugin
|
||
$l_str_LoveMeIndex = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_LOVE);
|
||
// check if the admin allows to add a link to the footer
|
||
if (empty($l_str_LoveMeIndex) || strtolower($l_str_LoveMeIndex) == "no" || !self::$a_bool_AllowLoveMe) {
|
||
return;
|
||
}
|
||
// set a hyperlink to the word "footnotes" in the Love slug
|
||
$l_str_LinkedName = sprintf('<a href="https://wordpress.org/plugins/footnotes/" target="_blank" style="text-decoration:none;">%s</a>', MCI_Footnotes_Config::C_STR_PLUGIN_PUBLIC_NAME);
|
||
// get random love me text
|
||
if (strtolower($l_str_LoveMeIndex) == "random") {
|
||
$l_str_LoveMeIndex = "text-" . rand(1,7);
|
||
}
|
||
switch ($l_str_LoveMeIndex) {
|
||
// options named wrt backcompat, simplest is default:
|
||
case "text-1": $l_str_LoveMeText = sprintf(__('I %2$s %1$s', MCI_Footnotes_Config::C_STR_PLUGIN_NAME), $l_str_LinkedName, MCI_Footnotes_Config::C_STR_LOVE_SYMBOL); break;
|
||
case "text-2": $l_str_LoveMeText = sprintf(__('This website uses the awesome %s plugin.', MCI_Footnotes_Config::C_STR_PLUGIN_NAME), $l_str_LinkedName); break;
|
||
case "text-4": $l_str_LoveMeText = sprintf('%s %s', $l_str_LinkedName, MCI_Footnotes_Config::C_STR_LOVE_SYMBOL); break;
|
||
case "text-5": $l_str_LoveMeText = sprintf('%s %s', MCI_Footnotes_Config::C_STR_LOVE_SYMBOL, $l_str_LinkedName); break;
|
||
case "text-6": $l_str_LoveMeText = sprintf(__('This website uses %s.', MCI_Footnotes_Config::C_STR_PLUGIN_NAME), $l_str_LinkedName); break;
|
||
case "text-7": $l_str_LoveMeText = sprintf(__('This website uses the %s plugin.', MCI_Footnotes_Config::C_STR_PLUGIN_NAME), $l_str_LinkedName); break;
|
||
case "text-3": default: $l_str_LoveMeText = sprintf('%s', $l_str_LinkedName); break;
|
||
}
|
||
echo sprintf('<div style="text-align:center; color:#acacac;">%s</div>', $l_str_LoveMeText);
|
||
}
|
||
|
||
/**
|
||
* Replaces footnotes in the post/page title.
|
||
*
|
||
* @author Stefan Herndler
|
||
* @since 1.5.0
|
||
* @param string $p_str_Content Widget content.
|
||
* @return string Content with replaced footnotes.
|
||
*/
|
||
public function the_title($p_str_Content) {
|
||
// appends the reference container if set to "post_end"
|
||
return $this->exec($p_str_Content, false);
|
||
}
|
||
|
||
/**
|
||
* Replaces footnotes in the content of the current page/post.
|
||
*
|
||
* @author Stefan Herndler
|
||
* @since 1.5.0
|
||
* @param string $p_str_Content Page/Post content.
|
||
* @return string Content with replaced footnotes.
|
||
*/
|
||
public function the_content($p_str_Content) {
|
||
// appends the reference container if set to "post_end"
|
||
return $this->exec($p_str_Content, MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_POSITION) == "post_end" ? true : false);
|
||
}
|
||
|
||
/**
|
||
* Replaces footnotes in the excerpt of the current page/post.
|
||
*
|
||
* @author Stefan Herndler
|
||
* @since 1.5.0
|
||
* @param string $p_str_Content Page/Post content.
|
||
* @return string Content with replaced footnotes.
|
||
*/
|
||
public function the_excerpt($p_str_Content) {
|
||
return $this->exec($p_str_Content, false, !MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_IN_EXCERPT)));
|
||
}
|
||
|
||
/**
|
||
* Replaces footnotes in the widget title.
|
||
*
|
||
* @author Stefan Herndler
|
||
* @since 1.5.0
|
||
* @param string $p_str_Content Widget content.
|
||
* @return string Content with replaced footnotes.
|
||
*/
|
||
public function widget_title($p_str_Content) {
|
||
// appends the reference container if set to "post_end"
|
||
return $this->exec($p_str_Content, false);
|
||
}
|
||
|
||
/**
|
||
* Replaces footnotes in the content of the current widget.
|
||
*
|
||
* @author Stefan Herndler
|
||
* @since 1.5.0
|
||
* @param string $p_str_Content Widget content.
|
||
* @return string Content with replaced footnotes.
|
||
*/
|
||
public function widget_text($p_str_Content) {
|
||
// appends the reference container if set to "post_end"
|
||
return $this->exec($p_str_Content, MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_POSITION) == "post_end" ? true : false);
|
||
}
|
||
|
||
/**
|
||
* Replaces footnotes in each Content var of the current Post object.
|
||
*
|
||
* @author Stefan Herndler
|
||
* @since 1.5.4
|
||
* @param array|WP_Post $p_mixed_Posts
|
||
*/
|
||
public function the_post(&$p_mixed_Posts) {
|
||
// single WP_Post object received
|
||
if (!is_array($p_mixed_Posts)) {
|
||
$p_mixed_Posts = $this->replacePostObject($p_mixed_Posts);
|
||
return;
|
||
}
|
||
// array of WP_Post objects received
|
||
for($l_int_Index = 0; $l_int_Index < count($p_mixed_Posts); $l_int_Index++) {
|
||
$p_mixed_Posts[$l_int_Index] = $this->replacePostObject($p_mixed_Posts[$l_int_Index]);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Replace all Footnotes in a WP_Post object.
|
||
*
|
||
* @author Stefan Herndler
|
||
* @since 1.5.6
|
||
* @param WP_Post $p_obj_Post
|
||
* @return WP_Post
|
||
*/
|
||
private function replacePostObject($p_obj_Post) {
|
||
//MCI_Footnotes_Convert::debug($p_obj_Post);
|
||
$p_obj_Post->post_content = $this->exec($p_obj_Post->post_content);
|
||
$p_obj_Post->post_content_filtered = $this->exec($p_obj_Post->post_content_filtered);
|
||
$p_obj_Post->post_excerpt = $this->exec($p_obj_Post->post_excerpt);
|
||
return $p_obj_Post;
|
||
}
|
||
|
||
/**
|
||
* Replaces all footnotes that occur in the given content.
|
||
*
|
||
* @author Stefan Herndler
|
||
* @since 1.5.0
|
||
* @param string $p_str_Content Any string that may contain footnotes to be replaced.
|
||
* @param bool $p_bool_OutputReferences Appends the Reference Container to the output if set to true, default true.
|
||
* @param bool $p_bool_HideFootnotesText Hide footnotes found in the string.
|
||
* @return string
|
||
*
|
||
* Edited:
|
||
* @since 2.2.0 insert reference container at shortcode, thanks to @hamshe 2020-12-13T2057+0100
|
||
* @see <https://wordpress.org/support/topic/reference-container-in-elementor/>
|
||
*
|
||
* @since 2.2.5 delete unused position shortcode, when position is widget or footer, thanks to @hamshe 2020-12-18T1434+0100
|
||
* @see <https://wordpress.org/support/topic/reference-container-in-elementor/#post-13784126>
|
||
*/
|
||
public function exec($p_str_Content, $p_bool_OutputReferences = false, $p_bool_HideFootnotesText = false) {
|
||
|
||
// replace all footnotes in the content, settings are converted to html characters
|
||
$p_str_Content = $this->search($p_str_Content, true, $p_bool_HideFootnotesText);
|
||
// replace all footnotes in the content, settings are NOT converted to html characters
|
||
$p_str_Content = $this->search($p_str_Content, false, $p_bool_HideFootnotesText);
|
||
|
||
// append the reference container or insert at shortcode:
|
||
$l_str_ReferenceContainerPositionShortcode = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_POSITION_SHORTCODE);
|
||
|
||
if ($p_bool_OutputReferences) {
|
||
|
||
if (strpos( $p_str_Content, $l_str_ReferenceContainerPositionShortcode ) !== false ) {
|
||
|
||
$p_str_Content = str_replace( $l_str_ReferenceContainerPositionShortcode, $this->ReferenceContainer(), $p_str_Content );
|
||
|
||
} else {
|
||
|
||
$p_str_Content .= $this->ReferenceContainer();
|
||
|
||
}
|
||
|
||
// increment the container ID:
|
||
self::$l_int_ReferenceContainerId++;
|
||
}
|
||
|
||
// delete position shortcode should any remain e.g. when ref container is in footer, thanks to @hamshe:
|
||
$p_str_Content = str_replace( $l_str_ReferenceContainerPositionShortcode, '', $p_str_Content );
|
||
|
||
// take a look if the LOVE ME slug should NOT be displayed on this page/post, remove the short code if found
|
||
if (strpos($p_str_Content, MCI_Footnotes_Config::C_STR_NO_LOVE_SLUG) !== false) {
|
||
self::$a_bool_AllowLoveMe = false;
|
||
$p_str_Content = str_replace(MCI_Footnotes_Config::C_STR_NO_LOVE_SLUG, "", $p_str_Content);
|
||
}
|
||
// return the content with replaced footnotes and optional reference container appended:
|
||
return $p_str_Content;
|
||
}
|
||
|
||
/**
|
||
* Replaces all footnotes in the given content and appends them to the static property.
|
||
*
|
||
* @author Stefan Herndler
|
||
* @since 1.5.0
|
||
* @param string $p_str_Content Content to be searched for footnotes.
|
||
* @param bool $p_bool_ConvertHtmlChars html encode settings, default true.
|
||
* @param bool $p_bool_HideFootnotesText Hide footnotes found in the string.
|
||
* @return string
|
||
*
|
||
* Edited since 2.0.0
|
||
*
|
||
* @since 2.4.0 footnote shortcode syntax validation
|
||
* @since 2.5.0 Shortcode syntax validation: exclude certain cases involving scripts, thanks to @andreasra 2021-01-07T0824+0100
|
||
* @since 2.5.0 Shortcode syntax validation: complete message with hint about setting, thanks to @andreasra
|
||
* @since 2.5.0 Shortcode syntax validation: limit length of quoted string to 300 characters, thanks to @andreasra
|
||
* @see <https://wordpress.org/support/topic/warning-unbalanced-footnote-start-tag-short-code-before/>
|
||
*/
|
||
public function search($p_str_Content, $p_bool_ConvertHtmlChars, $p_bool_HideFootnotesText) {
|
||
|
||
// post ID to make everything unique wrt infinite scroll and archive view
|
||
self::$l_int_PostId = get_the_id();
|
||
|
||
// contains the index for the next footnote on this page
|
||
$l_int_FootnoteIndex = count(self::$a_arr_Footnotes) + 1;
|
||
|
||
// contains the starting position for the lookup of a footnote
|
||
$l_int_PosStart = 0;
|
||
|
||
// get start and end tag for the footnotes short code
|
||
$l_str_StartingTag = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_SHORT_CODE_START);
|
||
$l_str_EndingTag = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_SHORT_CODE_END);
|
||
if ($l_str_StartingTag == "userdefined" || $l_str_EndingTag == "userdefined") {
|
||
$l_str_StartingTag = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_SHORT_CODE_START_USER_DEFINED);
|
||
$l_str_EndingTag = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_SHORT_CODE_END_USER_DEFINED);
|
||
}
|
||
// decode html special chars
|
||
if ($p_bool_ConvertHtmlChars) {
|
||
$l_str_StartingTag = htmlspecialchars($l_str_StartingTag);
|
||
$l_str_EndingTag = htmlspecialchars($l_str_EndingTag);
|
||
}
|
||
|
||
// if footnotes short code is empty, return the content without changes
|
||
if (empty($l_str_StartingTag) || empty($l_str_EndingTag)) {
|
||
return $p_str_Content;
|
||
}
|
||
|
||
// if footnotes short codes are unbalanced, and syntax validation is not disabled,
|
||
// return content with prepended warning:
|
||
if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTE_SHORTCODE_SYNTAX_VALIDATION_ENABLE))) {
|
||
|
||
// convert the shortcodes to regex syntax conformant:
|
||
$l_str_StartTagRegex = preg_replace( '#([\(\)\{\}\[\]\*\.\?\!])#', '\\\\$1', $l_str_StartingTag );
|
||
$l_str_EndTagRegex = preg_replace( '#([\(\)\{\}\[\]\*\.\?\!])#', '\\\\$1', $l_str_EndingTag );
|
||
|
||
// apply different regex depending on whether start shortcode is double/triple opening parenthesis:
|
||
if ( $l_str_StartingTag == '((' || $l_str_StartingTag == '(((' ) {
|
||
|
||
// this prevents from catching a script containing e.g. a double opening parenthesis:
|
||
$l_str_ValidationRegex = '#' . $l_str_StartTagRegex . '(((?!' . $l_str_EndTagRegex . ')[^\{\}])*?)(' . $l_str_StartTagRegex . '|$)#s';
|
||
|
||
} else {
|
||
|
||
// catch all only if the start shortcode is not double/triple opening parenthesis, i.e. is unlikely to occur in scripts:
|
||
$l_str_ValidationRegex = '#' . $l_str_StartTagRegex . '(((?!' . $l_str_EndTagRegex . ').)*?)(' . $l_str_StartTagRegex . '|$)#s';
|
||
}
|
||
|
||
// check syntax and get error locations:
|
||
preg_match( $l_str_ValidationRegex, $p_str_Content, $p_arr_ErrorLocation );
|
||
if ( empty( $p_arr_ErrorLocation ) ) {
|
||
self::$l_bool_SyntaxErrorFlag = false;
|
||
}
|
||
|
||
// prevent generating and inserting the warning multiple times:
|
||
if ( self::$l_bool_SyntaxErrorFlag ) {
|
||
|
||
// get plain text string for error location:
|
||
$l_str_ErrorSpotString = strip_tags( $p_arr_ErrorLocation[1] );
|
||
|
||
// limit string length to 300 characters:
|
||
if ( strlen( $l_str_ErrorSpotString ) > 300 ) {
|
||
$l_str_ErrorSpotString = substr( $l_str_ErrorSpotString, 0, 299 ) . '…';
|
||
}
|
||
|
||
// compose warning box:
|
||
$l_str_SyntaxErrorWarning = '<div class="footnotes_validation_error"><p>';
|
||
$l_str_SyntaxErrorWarning .= __("WARNING: unbalanced footnote start tag short code found.", MCI_Footnotes_Config::C_STR_PLUGIN_NAME);
|
||
$l_str_SyntaxErrorWarning .= '</p><p>';
|
||
|
||
// syntax validation setting in the dashboard under the General settings tab:
|
||
$l_str_SyntaxErrorWarning .= sprintf( __("If this warning is irrelevant, please disable the syntax validation feature in the dashboard under %s > %s > %s.", MCI_Footnotes_Config::C_STR_PLUGIN_NAME), __("General settings", MCI_Footnotes_Config::C_STR_PLUGIN_NAME), __("Footnote start and end short codes", MCI_Footnotes_Config::C_STR_PLUGIN_NAME), __("Check for balanced shortcodes", MCI_Footnotes_Config::C_STR_PLUGIN_NAME) );
|
||
|
||
$l_str_SyntaxErrorWarning .= '</p><p>';
|
||
$l_str_SyntaxErrorWarning .= __("Unbalanced start tag short code found before:", MCI_Footnotes_Config::C_STR_PLUGIN_NAME);
|
||
$l_str_SyntaxErrorWarning .= '</p><p>“';
|
||
$l_str_SyntaxErrorWarning .= $l_str_ErrorSpotString;
|
||
$l_str_SyntaxErrorWarning .= '”</p></div>';
|
||
|
||
// prepend the warning box to the content:
|
||
$p_str_Content = $l_str_SyntaxErrorWarning . $p_str_Content;
|
||
|
||
// checked, set flag to false to prevent duplicate warning:
|
||
self::$l_bool_SyntaxErrorFlag = false;
|
||
|
||
return $p_str_Content;
|
||
}
|
||
}
|
||
|
||
// load referrer templates if footnotes text not hidden:
|
||
if (!$p_bool_HideFootnotesText) {
|
||
|
||
// load footnote referrer template file:
|
||
if (self::$l_bool_AlternativeTooltipsEnabled) {
|
||
$l_obj_Template = new MCI_Footnotes_Template(MCI_Footnotes_Template::C_STR_PUBLIC, "footnote-alternative");
|
||
} else {
|
||
$l_obj_Template = new MCI_Footnotes_Template(MCI_Footnotes_Template::C_STR_PUBLIC, "footnote");
|
||
}
|
||
|
||
// load tooltip inline script if jQuery tooltips are enabled:
|
||
if (self::$l_bool_TooltipsEnabled && ! self::$l_bool_AlternativeTooltipsEnabled) {
|
||
$l_obj_TemplateTooltip = new MCI_Footnotes_Template(MCI_Footnotes_Template::C_STR_PUBLIC, "tooltip");
|
||
}
|
||
|
||
} else {
|
||
$l_obj_Template = null;
|
||
$l_obj_TemplateTooltip = null;
|
||
}
|
||
|
||
// search footnotes short codes in the content
|
||
do {
|
||
// get first occurrence of the footnote start tag short code:
|
||
$i_int_len_Content = strlen($p_str_Content);
|
||
if ($l_int_PosStart > $i_int_len_Content) $l_int_PosStart = $i_int_len_Content;
|
||
$l_int_PosStart = strpos($p_str_Content, $l_str_StartingTag, $l_int_PosStart);
|
||
// no short code found, stop here
|
||
if ($l_int_PosStart === false) {
|
||
break;
|
||
}
|
||
// get first occurrence of the footnote end tag short code:
|
||
$l_int_PosEnd = strpos($p_str_Content, $l_str_EndingTag, $l_int_PosStart);
|
||
// no short code found, stop here
|
||
if ($l_int_PosEnd === false) {
|
||
break;
|
||
}
|
||
// calculate the length of the footnote
|
||
$l_int_Length = $l_int_PosEnd - $l_int_PosStart;
|
||
|
||
// get footnote text
|
||
$l_str_FootnoteText = substr($p_str_Content, $l_int_PosStart + strlen($l_str_StartingTag), $l_int_Length - strlen($l_str_StartingTag));
|
||
|
||
|
||
/**
|
||
* URL line wrap
|
||
*
|
||
* Fix line wrapping of URLs (hyperlinked or not) based on pattern, not link element,
|
||
* to prevent them from hanging out of the tooltip in non-Unicode-compliant user agents.
|
||
* @see public.css
|
||
*
|
||
* spare however values of the href and the src arguments!
|
||
* @since 2.1.5 exclude image source too, thanks to @bjrnet21
|
||
* @see <https://wordpress.org/support/topic/2-1-4-breaks-on-my-site-images-dont-show/>
|
||
*
|
||
* Even ARIA labels may take a URL as value, so use \w=[\'"] as a catch-all 2020-12-10T1005+0100
|
||
* @since 2.1.6 add catch-all exclusion to fix URL line wrapping, thanks to @a223123131 2020-12-09T1921+0100
|
||
* @see <https://wordpress.org/support/topic/broken-layout-starting-version-2-1-4/>
|
||
*
|
||
* @since 2.1.6 option to disable URL line wrapping 2020-12-09T1606+0100
|
||
*
|
||
* URLs may be a query string in a URL:
|
||
* @since 2.2.6 make the quotation mark optional in the exclusion regex, thanks to @spiralofhope2 2020-12-23T0409+0100
|
||
* @see <https://wordpress.org/support/topic/two-links-now-breaks-footnotes-with-blogtext/>
|
||
* @since 2.2.7 revert that change in the exclusion regex, thanks to @rjl20, @spaceling, @friedrichnorth, @bernardzit 2020-12-23T1046+0100
|
||
* @see <https://wordpress.org/support/topic/two-links-now-breaks-footnotes-with-blogtext/>
|
||
* @see <https://wordpress.org/support/topic/footnotes-dont-show-after-update-to-2-2-6/>
|
||
* @since 2.2.8 correct lookbehind by duplicating it with and without quotation mark class 2020-12-23T1107+0100
|
||
*
|
||
* @since 2.2.9 account for RFC 2396 allowed characters in parameter names 2020-12-24T1956+0100
|
||
* @see <https://stackoverflow.com/questions/814700/http-url-allowed-characters-in-parameter-names>
|
||
* @since 2.2.9 exclude URLs also where the equals sign is preceded by an entity or character reference 2020-12-25T1234+0100
|
||
*
|
||
* @since 2.2.10 support also file transfer protocol URLs 2020-12-25T2220+0100
|
||
*/
|
||
if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTE_URL_WRAP_ENABLED))) {
|
||
$l_str_FootnoteText = preg_replace( '#(?<![-\w\.!~\*\'\(\);]=[\'"])(?<![-\w\.!~\*\'\(\);]=)((ht|f)tps?://[^\\s<]+)#', '<span class="footnote_url_wrap">$1</span>', $l_str_FootnoteText );
|
||
}
|
||
|
||
// Text to be displayed instead of the footnote
|
||
$l_str_FootnoteReplaceText = "";
|
||
|
||
// whether hard links are enabled; relevant also below in ReferenceContainer():
|
||
if (self::$l_bool_HardLinksEnable) {
|
||
|
||
// get the configurable parts:
|
||
self::$l_str_ReferrerLinkSlug = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_REFERRER_FRAGMENT_ID_SLUG);
|
||
self::$l_str_FootnoteLinkSlug = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTE_FRAGMENT_ID_SLUG);
|
||
self::$l_str_LinkIdsSeparator = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_HARD_LINK_IDS_SEPARATOR);
|
||
|
||
// streamline ID concatenation:
|
||
self::$l_str_PostContainerIdCompound = self::$l_str_LinkIdsSeparator;
|
||
self::$l_str_PostContainerIdCompound .= self::$l_int_PostId;
|
||
self::$l_str_PostContainerIdCompound .= self::$l_str_LinkIdsSeparator;
|
||
self::$l_str_PostContainerIdCompound .= self::$l_int_ReferenceContainerId;
|
||
self::$l_str_PostContainerIdCompound .= self::$l_str_LinkIdsSeparator;
|
||
|
||
}
|
||
|
||
// display the footnote referrers and the tooltips:
|
||
if (!$p_bool_HideFootnotesText) {
|
||
$l_int_Index = MCI_Footnotes_Convert::Index($l_int_FootnoteIndex, MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_COUNTER_STYLE));
|
||
|
||
// display only a truncated footnote text if option enabled:
|
||
$l_bool_EnableExcerpt = MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_MOUSE_OVER_BOX_EXCERPT_ENABLED));
|
||
$l_int_MaxLength = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_MOUSE_OVER_BOX_EXCERPT_LENGTH));
|
||
|
||
// define excerpt text as footnote text by default:
|
||
$l_str_ExcerptText = $l_str_FootnoteText;
|
||
|
||
if (self::$l_bool_TooltipsEnabled && $l_bool_EnableExcerpt) {
|
||
$l_str_DummyText = strip_tags($l_str_FootnoteText);
|
||
if (is_int($l_int_MaxLength) && strlen($l_str_DummyText) > $l_int_MaxLength) {
|
||
$l_str_ExcerptText = substr($l_str_DummyText, 0, $l_int_MaxLength);
|
||
$l_str_ExcerptText = substr($l_str_ExcerptText, 0, strrpos($l_str_ExcerptText, ' '));
|
||
$l_str_ExcerptText .= ' … <';
|
||
$l_str_ExcerptText .= self::$l_bool_HardLinksEnable ? 'a' : 'span';
|
||
$l_str_ExcerptText .= ' class="footnote_tooltip_continue" ';
|
||
$l_str_ExcerptText .= 'onclick="footnote_moveToAnchor_' . self::$l_int_PostId;
|
||
$l_str_ExcerptText .= '_' . self::$l_int_ReferenceContainerId;
|
||
$l_str_ExcerptText .= '(\'footnote_plugin_reference_' . self::$l_int_PostId;
|
||
$l_str_ExcerptText .= '_' . self::$l_int_ReferenceContainerId;
|
||
$l_str_ExcerptText .= "_$l_int_Index');\"";
|
||
|
||
// if enabled, add the hard link fragment ID:
|
||
if (self::$l_bool_HardLinksEnable) {
|
||
|
||
$l_str_ExcerptText .= ' href="#';
|
||
$l_str_ExcerptText .= self::$l_str_FootnoteLinkSlug;
|
||
$l_str_ExcerptText .= self::$l_str_PostContainerIdCompound;
|
||
$l_str_ExcerptText .= $l_int_Index;
|
||
$l_str_ExcerptText .= '"';
|
||
}
|
||
|
||
$l_str_ExcerptText .= '>';
|
||
$l_str_ExcerptText .= MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_TOOLTIP_READON_LABEL);
|
||
$l_str_ExcerptText .= self::$l_bool_HardLinksEnable ? '</a>' : '</span>';
|
||
}
|
||
}
|
||
|
||
// define the HTML element to use for the referrers:
|
||
if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_REFERRER_SUPERSCRIPT_TAGS))) {
|
||
|
||
$l_str_SupSpan = 'sup';
|
||
|
||
} else {
|
||
|
||
$l_str_SupSpan = 'span';
|
||
}
|
||
|
||
// whether hard links are enabled; relevant also below in ReferenceContainer():
|
||
if (self::$l_bool_HardLinksEnable) {
|
||
|
||
self::$l_str_LinkSpan = 'a';
|
||
self::$l_str_LinkCloseTag = '</a>';
|
||
// self::$l_str_LinkOpenTag will be defined as needed
|
||
|
||
// compose hyperlink address (leading space is in template):
|
||
$l_str_FootnoteLinkArgument = 'href="#';
|
||
$l_str_FootnoteLinkArgument .= self::$l_str_FootnoteLinkSlug;
|
||
$l_str_FootnoteLinkArgument .= self::$l_str_PostContainerIdCompound;
|
||
$l_str_FootnoteLinkArgument .= $l_int_Index;
|
||
$l_str_FootnoteLinkArgument .= '" class="footnote_hard_link"';
|
||
|
||
// compose offset anchor, an empty span child of empty span
|
||
// to prevent browsers from drawing tall dotted rectangles:
|
||
$l_str_ReferrerAnchorElement = '<span class="footnote_referrer_base"><span id="';
|
||
$l_str_ReferrerAnchorElement .= self::$l_str_ReferrerLinkSlug;
|
||
$l_str_ReferrerAnchorElement .= self::$l_str_PostContainerIdCompound;
|
||
$l_str_ReferrerAnchorElement .= $l_int_Index;
|
||
$l_str_ReferrerAnchorElement .= '" class="footnote_referrer_anchor"></span></span>';
|
||
|
||
} else {
|
||
|
||
// no hyperlink nor offset anchor needed:
|
||
$l_str_FootnoteLinkArgument = '';
|
||
$l_str_ReferrerAnchorElement = '';
|
||
|
||
// whether the link element is used nevertheless for styling:
|
||
if ( MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_LINK_ELEMENT_ENABLED)) ) {
|
||
|
||
self::$l_str_LinkSpan = 'a';
|
||
self::$l_str_LinkOpenTag = '<a>';
|
||
self::$l_str_LinkCloseTag = '</a>';
|
||
|
||
}
|
||
}
|
||
|
||
// fill in 'templates/public/footnote.html':
|
||
$l_obj_Template->replace(
|
||
array(
|
||
"link-span" => self::$l_str_LinkSpan,
|
||
"post_id" => self::$l_int_PostId,
|
||
"container_id" => self::$l_int_ReferenceContainerId,
|
||
"note_id" => $l_int_Index,
|
||
"hard-link" => $l_str_FootnoteLinkArgument,
|
||
"sup-span" => $l_str_SupSpan,
|
||
"before" => MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_STYLING_BEFORE),
|
||
"index" => $l_int_Index,
|
||
"after" => MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_STYLING_AFTER),
|
||
"anchor-element" => $l_str_ReferrerAnchorElement,
|
||
"text" => self::$l_bool_TooltipsEnabled ? $l_str_ExcerptText : "",
|
||
)
|
||
);
|
||
$l_str_FootnoteReplaceText = $l_obj_Template->getContent();
|
||
|
||
// reset the template
|
||
$l_obj_Template->reload();
|
||
|
||
// if standard tooltips are enabled but alternative are not:
|
||
if (self::$l_bool_TooltipsEnabled && ! self::$l_bool_AlternativeTooltipsEnabled) {
|
||
|
||
$l_int_OffsetY = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_MOUSE_OVER_BOX_OFFSET_Y));
|
||
$l_int_OffsetX = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_MOUSE_OVER_BOX_OFFSET_X));
|
||
$l_int_FadeInDelay = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_IN_DELAY ));
|
||
$l_int_FadeInDuration = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_IN_DURATION ));
|
||
$l_int_FadeOutDelay = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_OUT_DELAY ));
|
||
$l_int_FadeOutDuration = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_MOUSE_OVER_BOX_FADE_OUT_DURATION));
|
||
|
||
// fill in 'templates/public/tooltip.html':
|
||
$l_obj_TemplateTooltip->replace(
|
||
array(
|
||
"post_id" => self::$l_int_PostId,
|
||
"container_id" => self::$l_int_ReferenceContainerId,
|
||
"note_id" => $l_int_Index,
|
||
"position" => MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_MOUSE_OVER_BOX_POSITION),
|
||
"offset-y" => !empty($l_int_OffsetY) ? $l_int_OffsetY : 0,
|
||
"offset-x" => !empty($l_int_OffsetX) ? $l_int_OffsetX : 0,
|
||
"fade-in-delay" => !empty($l_int_FadeInDelay ) ? $l_int_FadeInDelay : 0,
|
||
"fade-in-duration" => !empty($l_int_FadeInDuration ) ? $l_int_FadeInDuration : 0,
|
||
"fade-out-delay" => !empty($l_int_FadeOutDelay ) ? $l_int_FadeOutDelay : 0,
|
||
"fade-out-duration" => !empty($l_int_FadeOutDuration) ? $l_int_FadeOutDuration : 0,
|
||
)
|
||
);
|
||
$l_str_FootnoteReplaceText .= $l_obj_TemplateTooltip->getContent();
|
||
$l_obj_TemplateTooltip->reload();
|
||
}
|
||
}
|
||
// replace the footnote with the template
|
||
$p_str_Content = substr_replace($p_str_Content, $l_str_FootnoteReplaceText, $l_int_PosStart, $l_int_Length + strlen($l_str_EndingTag));
|
||
|
||
// add footnote only if not empty
|
||
if (!empty($l_str_FootnoteText)) {
|
||
// set footnote to the output box at the end
|
||
self::$a_arr_Footnotes[] = $l_str_FootnoteText;
|
||
// increase footnote index
|
||
$l_int_FootnoteIndex++;
|
||
}
|
||
// add offset to the new starting position
|
||
$l_int_PosStart += $l_int_Length + strlen($l_str_EndingTag);
|
||
$l_int_PosStart = $l_int_Length + strlen($l_str_FootnoteReplaceText);
|
||
} while (true);
|
||
|
||
// return content
|
||
return $p_str_Content;
|
||
}
|
||
|
||
/**
|
||
* Generates the reference container.
|
||
*
|
||
* @author Stefan Herndler
|
||
* @since 1.5.0
|
||
* @return string
|
||
*
|
||
* Edited for 2.0.6: fixed line breaking behavior in footnote # clusters
|
||
* Edited for 2.1.1: fixed fragment IDs and backlinks with combine identical turned on 2020-11-14T1808+0100
|
||
*/
|
||
public function ReferenceContainer() {
|
||
|
||
// no footnotes have been replaced on this page:
|
||
if (empty(self::$a_arr_Footnotes)) {
|
||
return "";
|
||
}
|
||
|
||
|
||
/**
|
||
* FOOTNOTE INDEX BACKLINK SYMBOL
|
||
*
|
||
* @since 2.0.0 removed backlink symbol along with column 2 of the reference container
|
||
* @since 2.0.3 prepended an arrow on user request
|
||
* @since 2.0.4 restored the arrow select & symbol input setting
|
||
* @since 2.1.1 made the symbol optional instead of configuring it to invisible
|
||
*/
|
||
if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_REFERENCE_CONTAINER_BACKLINK_SYMBOL_ENABLE))) {
|
||
|
||
// get html arrow
|
||
$l_str_Arrow = MCI_Footnotes_Convert::getArrow(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_HYPERLINK_ARROW));
|
||
// set html arrow to the first one if invalid index defined
|
||
if (is_array($l_str_Arrow)) {
|
||
$l_str_Arrow = MCI_Footnotes_Convert::getArrow(0);
|
||
}
|
||
// get user defined arrow
|
||
$l_str_ArrowUserDefined = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_HYPERLINK_ARROW_USER_DEFINED);
|
||
if (!empty($l_str_ArrowUserDefined)) {
|
||
$l_str_Arrow = $l_str_ArrowUserDefined;
|
||
}
|
||
|
||
// wrap the arrow in a @media print { display:hidden } span:
|
||
$l_str_FootnoteArrow = '<span class="footnote_index_arrow">';
|
||
$l_str_FootnoteArrow .= $l_str_Arrow . '</span>';
|
||
|
||
} else {
|
||
|
||
// if it is not, set arrow to empty:
|
||
$l_str_Arrow = '';
|
||
$l_str_FootnoteArrow = '';
|
||
|
||
}
|
||
|
||
|
||
/**
|
||
* BACKLINK SEPARATOR
|
||
*
|
||
* Initially a comma was appended in this algorithm for enumerations.
|
||
* The comma in enumerations is not generally preferred.
|
||
* @since 2.1.4 the separator is optional, has options, and is configurable:
|
||
*/
|
||
|
||
// check if it is even enabled:
|
||
if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_BACKLINKS_SEPARATOR_ENABLED))) {
|
||
|
||
// if so, check if it is freely configured:
|
||
$l_str_Separator = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_BACKLINKS_SEPARATOR_CUSTOM);
|
||
|
||
if (empty($l_str_Separator)) {
|
||
|
||
// if it is not, check which option is on:
|
||
$l_str_SeparatorOption = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_BACKLINKS_SEPARATOR_OPTION);
|
||
switch ($l_str_SeparatorOption) {
|
||
case 'comma' : $l_str_Separator = ','; break;
|
||
case 'semicolon': $l_str_Separator = ';'; break;
|
||
case 'en_dash' : $l_str_Separator = ' –'; break;
|
||
}
|
||
}
|
||
|
||
} else {
|
||
|
||
$l_str_Separator = '';
|
||
}
|
||
|
||
/**
|
||
* BACKLINK TERMINATOR
|
||
*
|
||
* Initially a dot was appended in the table row template.
|
||
* @since 2.0.6 a dot after footnote numbers is discarded as not localizable;
|
||
* making it optional was envisaged.
|
||
* @since 2.1.4 the terminator is optional, has options, and is configurable:
|
||
*/
|
||
|
||
// check if it is even enabled:
|
||
if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_BACKLINKS_TERMINATOR_ENABLED))) {
|
||
|
||
// if so, check if it is input-configured:
|
||
$l_str_Terminator = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_BACKLINKS_TERMINATOR_CUSTOM);
|
||
|
||
if (empty($l_str_Terminator)) {
|
||
|
||
// if it is not, check which option is on:
|
||
$l_str_TerminatorOption = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_BACKLINKS_TERMINATOR_OPTION);
|
||
switch ($l_str_TerminatorOption) {
|
||
case 'period' : $l_str_Terminator = '.'; break;
|
||
case 'parenthesis': $l_str_Terminator = ')'; break;
|
||
case 'colon' : $l_str_Terminator = ':'; break;
|
||
}
|
||
}
|
||
|
||
} else {
|
||
|
||
$l_str_Terminator = '';
|
||
}
|
||
|
||
|
||
/**
|
||
* LINE BREAKS
|
||
*
|
||
* The backlinks of combined footnotes are generally preferred in an enumeration.
|
||
* But when few footnotes are identical, stacking the items in list form is better.
|
||
* Variable number length and proportional character width require explicit line breaks.
|
||
* Otherwise, an ordinary space character offering a line break opportunity is inserted.
|
||
*/
|
||
$l_str_LineBreak = MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_BACKLINKS_LINE_BREAKS_ENABLED)) ? '<br />' : ' ';
|
||
|
||
/**
|
||
* For maintenance and support, table rows in the reference container should be
|
||
* separated by an empty line. So we add these line breaks for source readability.
|
||
* Before the first table row (breaks between rows are ~200 lines below):
|
||
*/
|
||
$l_str_Body = "\r\n\r\n";
|
||
|
||
|
||
// REFERENCE CONTAINER TABLE ROW TEMPLATE LOAD
|
||
|
||
// when combining identical footnotes is turned on, another template is needed:
|
||
if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_COMBINE_IDENTICAL_FOOTNOTES))) {
|
||
// the combining template allows for backlink clusters and supports cell clicking for single notes:
|
||
$l_obj_Template = new MCI_Footnotes_Template(MCI_Footnotes_Template::C_STR_PUBLIC, "reference-container-body-combi");
|
||
|
||
} else {
|
||
|
||
// when 3-column layout is turned on (only available if combining is turned off):
|
||
if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_REFERENCE_CONTAINER_3COLUMN_LAYOUT_ENABLE))) {
|
||
$l_obj_Template = new MCI_Footnotes_Template(MCI_Footnotes_Template::C_STR_PUBLIC, "reference-container-body-3column");
|
||
|
||
} else {
|
||
|
||
// when switch symbol and index is turned on, and combining and 3-columns are off:
|
||
if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_REFERENCE_CONTAINER_BACKLINK_SYMBOL_SWITCH))) {
|
||
$l_obj_Template = new MCI_Footnotes_Template(MCI_Footnotes_Template::C_STR_PUBLIC, "reference-container-body-switch");
|
||
|
||
} else {
|
||
|
||
// default is the standard template:
|
||
$l_obj_Template = new MCI_Footnotes_Template(MCI_Footnotes_Template::C_STR_PUBLIC, "reference-container-body");
|
||
|
||
}
|
||
}
|
||
}
|
||
|
||
// whether to switch backlink symbol and footnote number:
|
||
$l_bool_SymbolSwitch = MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_REFERENCE_CONTAINER_BACKLINK_SYMBOL_SWITCH));
|
||
|
||
// FILL IN THE TEMPLATE
|
||
|
||
// loop through all footnotes found in the page
|
||
for ($l_int_Index = 0; $l_int_Index < count(self::$a_arr_Footnotes); $l_int_Index++) {
|
||
|
||
// TEXT COLUMN
|
||
|
||
// get footnote text
|
||
$l_str_FootnoteText = self::$a_arr_Footnotes[$l_int_Index];
|
||
// if footnote is empty, get to the next one
|
||
// With combine identical turned on, identicals will be deleted and are skipped:
|
||
if (empty($l_str_FootnoteText)) {
|
||
continue;
|
||
}
|
||
|
||
// generate content of footnote index cell
|
||
$l_int_FirstFootnoteIndex = ($l_int_Index + 1);
|
||
|
||
// get the footnote index string and
|
||
// keep supporting legacy index placeholder:
|
||
$l_str_FootnoteId = MCI_Footnotes_Convert::Index(($l_int_Index + 1), MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_COUNTER_STYLE));
|
||
|
||
|
||
// INDEX COLUMN WITH ONE BACKLINK PER TABLE ROW
|
||
|
||
// if enabled, and for the case the footnote is single, compose hard link:
|
||
// define variable as empty for the reference container if not enabled:
|
||
$l_str_HardLinkAddress = '';
|
||
|
||
if (self::$l_bool_HardLinksEnable) {
|
||
|
||
// compose fragment ID anchor with offset, for use in reference container, an
|
||
// empty span child of empty span to avoid tall dotted rectangles in browser:
|
||
$l_str_FootnoteAnchorElement = '<span class="footnote_item_base"><span id="';
|
||
$l_str_FootnoteAnchorElement .= self::$l_str_FootnoteLinkSlug;
|
||
$l_str_FootnoteAnchorElement .= self::$l_str_PostContainerIdCompound;
|
||
$l_str_FootnoteAnchorElement .= $l_str_FootnoteId;
|
||
$l_str_FootnoteAnchorElement .= '" class="footnote_item_anchor"></span></span>';
|
||
|
||
// compose optional hard link address:
|
||
$l_str_HardLinkAddress = ' href="#';
|
||
$l_str_HardLinkAddress .= self::$l_str_ReferrerLinkSlug;
|
||
$l_str_HardLinkAddress .= self::$l_str_PostContainerIdCompound;
|
||
$l_str_HardLinkAddress .= $l_str_FootnoteId . '"';
|
||
|
||
// compose optional opening link tag with optional hard link, mandatory for instance:
|
||
self::$l_str_LinkOpenTag = '<a' . $l_str_HardLinkAddress;
|
||
self::$l_str_LinkOpenTag = ' class="footnote_hard_back_link">';
|
||
|
||
} else {
|
||
// define as empty, too:
|
||
$l_str_FootnoteAnchorElement = '';
|
||
}
|
||
|
||
|
||
// SUPPORT FOR COMBINING IDENTICALS: COMPOSE ENUMERATED BACKLINKS
|
||
|
||
// Prepare to have single footnotes, where the click event and
|
||
// optional hard link need to be set to cover the table cell,
|
||
// for better usability and UX.
|
||
|
||
// set a flag to check for the combined status of a footnote item:
|
||
$l_bool_FlagCombined = false;
|
||
|
||
// set otherwise unused variables as empty to avoid screwing up the placeholder array:
|
||
$l_str_BacklinkEvent = '';
|
||
$l_str_FootnoteBacklinks = '';
|
||
$l_str_FootnoteReference = '';
|
||
|
||
if ( MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_COMBINE_IDENTICAL_FOOTNOTES))) {
|
||
|
||
// ID, optional hard link address, and class:
|
||
$l_str_FootnoteReference = '<' . self::$l_str_LinkSpan;
|
||
$l_str_FootnoteReference .= ' id="footnote_plugin_reference_';
|
||
$l_str_FootnoteReference .= self::$l_int_PostId;
|
||
$l_str_FootnoteReference .= '_' . self::$l_int_ReferenceContainerId;
|
||
$l_str_FootnoteReference .= "_$l_str_FootnoteId\"";
|
||
if (self::$l_bool_HardLinksEnable) {
|
||
$l_str_FootnoteReference .= ' href="#';
|
||
$l_str_FootnoteReference .= self::$l_str_ReferrerLinkSlug;
|
||
$l_str_FootnoteReference .= self::$l_str_PostContainerIdCompound;
|
||
$l_str_FootnoteReference .= $l_str_FootnoteId . '"';
|
||
}
|
||
$l_str_FootnoteReference .= ' class="footnote_backlink"';
|
||
|
||
// the click event goes in the table cell if footnote remains single:
|
||
$l_str_BacklinkEvent = ' onclick="footnote_moveToAnchor_';
|
||
$l_str_BacklinkEvent .= self::$l_int_PostId;
|
||
$l_str_BacklinkEvent .= '_' . self::$l_int_ReferenceContainerId;
|
||
$l_str_BacklinkEvent .= "('footnote_plugin_tooltip_";
|
||
$l_str_BacklinkEvent .= self::$l_int_PostId;
|
||
$l_str_BacklinkEvent .= '_' . self::$l_int_ReferenceContainerId;
|
||
$l_str_BacklinkEvent .= "_$l_str_FootnoteId');\"";
|
||
|
||
|
||
// the dedicated template enumerating backlinks uses another variable:
|
||
$l_str_FootnoteBacklinks = $l_str_FootnoteReference;
|
||
|
||
// append the click event right to the backlink item for enumerations;
|
||
// else it goes in the table cell:
|
||
$l_str_FootnoteBacklinks .= $l_str_BacklinkEvent . '>';
|
||
$l_str_FootnoteReference .= '>';
|
||
|
||
// append the optional offset anchor for hard links:
|
||
if (self::$l_bool_HardLinksEnable) {
|
||
$l_str_FootnoteReference .= $l_str_FootnoteAnchorElement;
|
||
$l_str_FootnoteBacklinks .= $l_str_FootnoteAnchorElement;
|
||
}
|
||
|
||
// continue both single note and notes cluster, depending on switch option status:
|
||
if ($l_bool_SymbolSwitch) {
|
||
|
||
$l_str_FootnoteReference .= "$l_str_FootnoteId$l_str_FootnoteArrow";
|
||
$l_str_FootnoteBacklinks .= "$l_str_FootnoteId$l_str_FootnoteArrow";
|
||
|
||
} else {
|
||
|
||
$l_str_FootnoteReference .= "$l_str_FootnoteArrow$l_str_FootnoteId";
|
||
$l_str_FootnoteBacklinks .= "$l_str_FootnoteArrow$l_str_FootnoteId";
|
||
|
||
}
|
||
|
||
// If that is the only footnote with this text, we’re almost done.
|
||
|
||
// check if it isn't the last footnote in the array:
|
||
if ($l_int_FirstFootnoteIndex < count(self::$a_arr_Footnotes)) {
|
||
|
||
// get all footnotes that haven't passed yet:
|
||
for ($l_int_CheckIndex = $l_int_FirstFootnoteIndex; $l_int_CheckIndex < count(self::$a_arr_Footnotes); $l_int_CheckIndex++) {
|
||
|
||
// check if a further footnote is the same as the actual one:
|
||
if ($l_str_FootnoteText == self::$a_arr_Footnotes[$l_int_CheckIndex]) {
|
||
|
||
// if so, set the further footnote as empty so it won't be displayed later:
|
||
self::$a_arr_Footnotes[$l_int_CheckIndex] = "";
|
||
|
||
// set the flag to true for the combined status:
|
||
$l_bool_FlagCombined = true;
|
||
|
||
// update the footnote ID:
|
||
$l_str_FootnoteId = MCI_Footnotes_Convert::Index(($l_int_CheckIndex + 1), MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_COUNTER_STYLE));
|
||
|
||
// resume composing the backlinks enumeration:
|
||
$l_str_FootnoteBacklinks .= "$l_str_Separator</";
|
||
$l_str_FootnoteBacklinks .= self::$l_str_LinkSpan . '>';
|
||
$l_str_FootnoteBacklinks .= $l_str_LineBreak;
|
||
$l_str_FootnoteBacklinks .= '<' . self::$l_str_LinkSpan;
|
||
$l_str_FootnoteBacklinks .= ' id="footnote_plugin_reference_';
|
||
$l_str_FootnoteBacklinks .= self::$l_int_PostId;
|
||
$l_str_FootnoteBacklinks .= '_' . self::$l_int_ReferenceContainerId;
|
||
$l_str_FootnoteBacklinks .= "_$l_str_FootnoteId\"";
|
||
// insert the optional hard link address:
|
||
if (self::$l_bool_HardLinksEnable) {
|
||
$l_str_FootnoteBacklinks .= ' href="#';
|
||
$l_str_FootnoteBacklinks .= self::$l_str_ReferrerLinkSlug;
|
||
$l_str_FootnoteBacklinks .= self::$l_str_PostContainerIdCompound;
|
||
$l_str_FootnoteBacklinks .= $l_str_FootnoteId . '"';
|
||
}
|
||
$l_str_FootnoteBacklinks .= ' class="footnote_backlink"';
|
||
$l_str_FootnoteBacklinks .= ' onclick="footnote_moveToAnchor_';
|
||
$l_str_FootnoteBacklinks .= self::$l_int_PostId;
|
||
$l_str_FootnoteBacklinks .= '_' . self::$l_int_ReferenceContainerId;
|
||
$l_str_FootnoteBacklinks .= "('footnote_plugin_tooltip_";
|
||
$l_str_FootnoteBacklinks .= self::$l_int_PostId;
|
||
$l_str_FootnoteBacklinks .= '_' . self::$l_int_ReferenceContainerId;
|
||
$l_str_FootnoteBacklinks .= "_$l_str_FootnoteId');\">";
|
||
// append the offset anchor for optional hard links:
|
||
if (self::$l_bool_HardLinksEnable) {
|
||
$l_str_FootnoteBacklinks .= '<span class="footnote_item_base"><span id="';
|
||
$l_str_FootnoteBacklinks .= self::$l_str_FootnoteLinkSlug;
|
||
$l_str_FootnoteBacklinks .= self::$l_str_PostContainerIdCompound;
|
||
$l_str_FootnoteBacklinks .= $l_str_FootnoteId;
|
||
$l_str_FootnoteBacklinks .= '" class="footnote_item_anchor"></span></span>';
|
||
}
|
||
$l_str_FootnoteBacklinks .= $l_bool_SymbolSwitch ? '' : $l_str_FootnoteArrow;
|
||
$l_str_FootnoteBacklinks .= $l_str_FootnoteId;
|
||
$l_str_FootnoteBacklinks .= $l_bool_SymbolSwitch ? $l_str_FootnoteArrow : '';
|
||
|
||
}
|
||
}
|
||
}
|
||
|
||
// append terminator and end tag:
|
||
$l_str_FootnoteReference .= $l_str_Terminator . '</' . self::$l_str_LinkSpan . '>';
|
||
$l_str_FootnoteBacklinks .= $l_str_Terminator . '</' . self::$l_str_LinkSpan . '>';
|
||
|
||
}
|
||
|
||
// line wrapping of URLs already fixed, see above
|
||
|
||
// replace all placeholders in 'templates/public/reference-container-body.html'
|
||
// or in 'templates/public/reference-container-body-combi.html'
|
||
// or in 'templates/public/reference-container-body-3column.html'
|
||
// or in 'templates/public/reference-container-body-switch.html'
|
||
$l_obj_Template->replace(
|
||
array(
|
||
|
||
// placeholder used in all templates:
|
||
"text" => $l_str_FootnoteText,
|
||
|
||
// used in standard layout W/O COMBINED FOOTNOTES:
|
||
"post_id" => self::$l_int_PostId,
|
||
"container_id" => self::$l_int_ReferenceContainerId,
|
||
"note_id" => MCI_Footnotes_Convert::Index($l_int_FirstFootnoteIndex, MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_COUNTER_STYLE)),
|
||
"link-start" => self::$l_str_LinkOpenTag,
|
||
"link-end" => self::$l_str_LinkCloseTag,
|
||
"link-span" => self::$l_str_LinkSpan,
|
||
"terminator" => $l_str_Terminator,
|
||
"anchor-element" => $l_str_FootnoteAnchorElement,
|
||
"hard-link" => $l_str_HardLinkAddress,
|
||
|
||
// used in standard layout WITH COMBINED IDENTICALS TURNED ON:
|
||
"pointer" => $l_bool_FlagCombined ? '' : ' pointer',
|
||
"event" => $l_bool_FlagCombined ? '' : $l_str_BacklinkEvent,
|
||
"backlinks" => $l_bool_FlagCombined ? $l_str_FootnoteBacklinks : $l_str_FootnoteReference,
|
||
|
||
// Legacy placeholders for use in legacy layout templates:
|
||
"arrow" => $l_str_FootnoteArrow,
|
||
"index" => $l_str_FootnoteId,
|
||
)
|
||
);
|
||
|
||
$l_str_Body .= $l_obj_Template->getContent();
|
||
|
||
// extra line breaks for page source readability:
|
||
$l_str_Body .= "\r\n\r\n";
|
||
|
||
$l_obj_Template->reload();
|
||
|
||
}
|
||
|
||
// streamline:
|
||
$l_bool_CollapseDefault = MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_REFERENCE_CONTAINER_COLLAPSE));
|
||
|
||
// prevent empty from being less robust:
|
||
$l_str_ReferenceContainerLabel = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_NAME);
|
||
|
||
// load 'templates/public/reference-container.html':
|
||
$l_obj_TemplateContainer = new MCI_Footnotes_Template(MCI_Footnotes_Template::C_STR_PUBLIC, "reference-container");
|
||
$l_obj_TemplateContainer->replace(
|
||
array(
|
||
"post_id" => self::$l_int_PostId,
|
||
"container_id" => self::$l_int_ReferenceContainerId,
|
||
"element" => MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_LABEL_ELEMENT),
|
||
"name" => empty($l_str_ReferenceContainerLabel) ? ' ' : $l_str_ReferenceContainerLabel,
|
||
"button-style" => !$l_bool_CollapseDefault ? 'display: none;' : '',
|
||
"style" => $l_bool_CollapseDefault ? 'display: none;' : '',
|
||
"content" => $l_str_Body,
|
||
"scroll-offset" => (self::$l_int_ScrollOffset / 100),
|
||
"scroll-duration" => intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_SCROLL_DURATION)),
|
||
)
|
||
);
|
||
|
||
// free all found footnotes if reference container will be displayed
|
||
self::$a_arr_Footnotes = array();
|
||
|
||
return $l_obj_TemplateContainer->getContent();
|
||
}
|
||
}
|