37ae1474ed
git-svn-id: https://plugins.svn.wordpress.org/footnotes/trunk@2418754 b8457f37-d9ea-0310-8a92-e5e31aec5664
686 lines
33 KiB
PHP
686 lines
33 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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* 2.0.5: Autoload / infinite scroll support added thanks to code from
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* @docteurfitness <https://wordpress.org/support/topic/auto-load-post-compatibility-update/>
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*
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* 2.0.9: DISABLED the_post HOOK 2020-11-08T1839+0100
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* 2.1.0: promoted the 'Continue reading' button from localization to customization 2020-11-08T2146+0100
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* 2.1.1: combining identical footnotes: fixed dead links 2020-11-14T2233+0100
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*
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* Last modified 2020-11-14T2233+0100
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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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* 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 $a_str_Prefix = "";
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/**
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* Register WordPress Hooks to replace Footnotes in the content of a public page.
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*
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* @author Stefan Herndler
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* @since 1.5.0
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*
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* Edited for v2.0.5 through v2.0.7 2020-11-02T0330+0100..2020-11-06T1344+0100
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*
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* Explicitly setting all priority to (default) "10" instead of lowest "PHP_INT_MAX",
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* especially for the_content, makes the footnotes reference container display
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* beneath the content and above other features added by other plugins.
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* Requested by users: <https://wordpress.org/support/topic/change-the-position-5/>
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* Documentation: <https://codex.wordpress.org/Plugin_API/#Hook_in_your_Filter>
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*
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* But this change is suspected to cause issues and needs to be assessed!
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* See <https://wordpress.org/support/topic/change-the-position-5/#post-13612697>
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*/
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public function registerHooks() {
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// append custom css to the header
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add_filter('wp_head', array($this, "wp_head"), PHP_INT_MAX);
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// append the love and share me slug to the footer
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add_filter('wp_footer', array($this, "wp_footer"), PHP_INT_MAX);
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if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_EXPERT_LOOKUP_THE_TITLE))) {
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add_filter('the_title', array($this, "the_title"), PHP_INT_MAX);
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}
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if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_EXPERT_LOOKUP_THE_CONTENT))) {
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add_filter('the_content', array($this, "the_content"), PHP_INT_MAX);
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}
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if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_EXPERT_LOOKUP_THE_EXCERPT))) {
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add_filter('the_excerpt', array($this, "the_excerpt"), PHP_INT_MAX);
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}
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if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_EXPERT_LOOKUP_WIDGET_TITLE))) {
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add_filter('widget_title', array($this, "widget_title"), PHP_INT_MAX);
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}
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if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_EXPERT_LOOKUP_WIDGET_TEXT))) {
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add_filter('widget_text', array($this, "widget_text"), PHP_INT_MAX);
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}
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// DISABLED the_post HOOK 2020-11-08T1839+0100
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//
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//
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// reset stored footnotes when displaying the header
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self::$a_arr_Footnotes = array();
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self::$a_bool_AllowLoveMe = true;
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}
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/**
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* Outputs the custom css to the header of the 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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*/
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public function wp_head() {
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$l_str_Color = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_MOUSE_OVER_BOX_COLOR);
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$l_str_Background = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_MOUSE_OVER_BOX_BACKGROUND);
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$l_int_BorderWidth = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_MOUSE_OVER_BOX_BORDER_WIDTH);
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$l_str_BorderColor = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_MOUSE_OVER_BOX_BORDER_COLOR);
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$l_int_BorderRadius = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_MOUSE_OVER_BOX_BORDER_RADIUS);
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$l_int_MaxWidth = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_MOUSE_OVER_BOX_MAX_WIDTH);
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$l_str_BoxShadowColor = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_MOUSE_OVER_BOX_SHADOW_COLOR);
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?>
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<style type="text/css" media="screen">
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<?php
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echo MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_CUSTOM_CSS);
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echo '.footnote_tooltip {';
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if (!empty($l_str_Color)) {
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printf(" color: %s;", $l_str_Color);
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}
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if (!empty($l_str_Background)) {
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printf(" background-color: %s;", $l_str_Background);
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}
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if (!empty($l_int_BorderWidth) && intval($l_int_BorderWidth) > 0) {
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printf(" border-width: %dpx; border-style: solid;", $l_int_BorderWidth);
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}
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if (!empty($l_str_BorderColor)) {
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printf(" border-color: %s;", $l_str_BorderColor);
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}
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if (!empty($l_int_BorderRadius) && intval($l_int_BorderRadius) > 0) {
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printf(" border-radius: %dpx;", $l_int_BorderRadius);
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}
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if (!empty($l_int_MaxWidth) && intval($l_int_MaxWidth) > 0) {
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printf(" max-width: %dpx;", $l_int_MaxWidth);
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}
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if (!empty($l_str_BoxShadowColor)) {
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printf(" -webkit-box-shadow: 2px 2px 11px %s;", $l_str_BoxShadowColor);
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printf(" -moz-box-shadow: 2px 2px 11px %s;", $l_str_BoxShadowColor);
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printf(" box-shadow: 2px 2px 11px %s;", $l_str_BoxShadowColor);
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}
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echo '}';
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?>
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</style>
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<?php
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if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_MOUSE_OVER_BOX_ALTERNATIVE))) {
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echo '<script content="text/javascript">' . "\r\n";
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echo "\tfunction footnoteTooltipShow(footnoteTooltipId) {\r\n";
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echo "\t\tdocument.getElementById(footnoteTooltipId).classList.remove('hidden');\r\n";
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echo "\t\tdocument.getElementById(footnoteTooltipId).classList.add('shown');\r\n";
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echo "\t}\r\n";
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echo "\tfunction footnoteTooltipHide(footnoteTooltipId) { \r\n";
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echo "\t\tdocument.getElementById(footnoteTooltipId).classList.remove('shown');\r\n";
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echo "\t\tdocument.getElementById(footnoteTooltipId).classList.add('hidden');\r\n";
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echo "\t}\r\n";
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echo "</script>\r\n";
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};
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}
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/**
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* Displays the 'LOVE FOOTNOTES' slug if enabled.
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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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public function wp_footer() {
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if (MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_POSITION) == "footer") {
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echo $this->ReferenceContainer();
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}
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// get setting for love and share this plugin
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$l_str_LoveMeIndex = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_LOVE);
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// check if the admin allows to add a link to the footer
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if (empty($l_str_LoveMeIndex) || strtolower($l_str_LoveMeIndex) == "no" || !self::$a_bool_AllowLoveMe) {
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return;
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}
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// set a hyperlink to the word "footnotes" in the Love slug
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$l_str_LinkedName = sprintf('<a href="http://wordpress.org/plugins/footnotes/" target="_blank" style="text-decoration:none;">%s</a>',MCI_Footnotes_Config::C_STR_PLUGIN_PUBLIC_NAME);
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// get random love me text
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if (strtolower($l_str_LoveMeIndex) == "random") {
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$l_str_LoveMeIndex = "text-" . rand(1,3);
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}
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switch ($l_str_LoveMeIndex) {
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case "text-1":
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$l_str_LoveMeText = sprintf(__('I %s %s', MCI_Footnotes_Config::C_STR_PLUGIN_NAME), MCI_Footnotes_Config::C_STR_LOVE_SYMBOL, $l_str_LinkedName);
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break;
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case "text-2":
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$l_str_LoveMeText = sprintf(__('this site uses the awesome %s Plugin', MCI_Footnotes_Config::C_STR_PLUGIN_NAME), $l_str_LinkedName);
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break;
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case "text-3":
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default:
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$l_str_LoveMeText = sprintf(__('extra smooth %s', MCI_Footnotes_Config::C_STR_PLUGIN_NAME), $l_str_LinkedName);
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break;
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}
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echo sprintf('<div style="text-align:center; color:#acacac;">%s</div>', $l_str_LoveMeText);
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}
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/**
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* Replaces footnotes in the post/page title.
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*
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* @author Stefan Herndler
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* @since 1.5.0
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* @param string $p_str_Content Widget content.
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* @return string Content with replaced footnotes.
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*/
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public function the_title($p_str_Content) {
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// appends the reference container if set to "post_end"
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return $this->exec($p_str_Content, false);
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}
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/**
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* Replaces footnotes in the content of the current page/post.
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*
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* @author Stefan Herndler
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* @since 1.5.0
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* @param string $p_str_Content Page/Post content.
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* @return string Content with replaced footnotes.
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*/
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public function the_content($p_str_Content) {
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// appends the reference container if set to "post_end"
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return $this->exec($p_str_Content, MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_POSITION) == "post_end" ? true : false);
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}
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/**
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* Replaces footnotes in the excerpt of the current page/post.
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*
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* @author Stefan Herndler
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* @since 1.5.0
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* @param string $p_str_Content Page/Post content.
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* @return string Content with replaced footnotes.
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*/
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public function the_excerpt($p_str_Content) {
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return $this->exec($p_str_Content, false, !MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_IN_EXCERPT)));
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}
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/**
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* Replaces footnotes in the widget title.
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*
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* @author Stefan Herndler
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* @since 1.5.0
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* @param string $p_str_Content Widget content.
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* @return string Content with replaced footnotes.
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*/
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public function widget_title($p_str_Content) {
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// appends the reference container if set to "post_end"
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return $this->exec($p_str_Content, false);
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}
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/**
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* Replaces footnotes in the content of the current widget.
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*
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* @author Stefan Herndler
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* @since 1.5.0
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* @param string $p_str_Content Widget content.
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* @return string Content with replaced footnotes.
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*/
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public function widget_text($p_str_Content) {
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// appends the reference container if set to "post_end"
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return $this->exec($p_str_Content, MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_POSITION) == "post_end" ? true : false);
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}
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/**
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* Replaces footnotes in each Content var of the current Post object.
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*
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* @author Stefan Herndler
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* @since 1.5.4
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* @param array|WP_Post $p_mixed_Posts
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*/
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public function the_post(&$p_mixed_Posts) {
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// single WP_Post object received
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if (!is_array($p_mixed_Posts)) {
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$p_mixed_Posts = $this->replacePostObject($p_mixed_Posts);
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return;
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}
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// array of WP_Post objects received
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for($l_int_Index = 0; $l_int_Index < count($p_mixed_Posts); $l_int_Index++) {
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$p_mixed_Posts[$l_int_Index] = $this->replacePostObject($p_mixed_Posts[$l_int_Index]);
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}
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}
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/**
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* Replace all Footnotes in a WP_Post object.
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*
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* @author Stefan Herndler
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* @since 1.5.6
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* @param WP_Post $p_obj_Post
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* @return WP_Post
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*/
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private function replacePostObject($p_obj_Post) {
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//MCI_Footnotes_Convert::debug($p_obj_Post);
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$p_obj_Post->post_content = $this->exec($p_obj_Post->post_content);
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$p_obj_Post->post_content_filtered = $this->exec($p_obj_Post->post_content_filtered);
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$p_obj_Post->post_excerpt = $this->exec($p_obj_Post->post_excerpt);
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return $p_obj_Post;
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}
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/**
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* Replaces all footnotes that occur in the given content.
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*
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* @author Stefan Herndler
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* @since 1.5.0
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* @param string $p_str_Content Any string that may contain footnotes to be replaced.
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* @param bool $p_bool_OutputReferences Appends the Reference Container to the output if set to true, default true.
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* @param bool $p_bool_HideFootnotesText Hide footnotes found in the string.
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* @return string
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*/
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public function exec($p_str_Content, $p_bool_OutputReferences = false, $p_bool_HideFootnotesText = false) {
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// replace all footnotes in the content, settings are converted to html characters
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$p_str_Content = $this->search($p_str_Content, true, $p_bool_HideFootnotesText);
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// replace all footnotes in the content, settings are NOT converted to html characters
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$p_str_Content = $this->search($p_str_Content, false, $p_bool_HideFootnotesText);
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// append the reference container
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if ($p_bool_OutputReferences) {
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$p_str_Content = $p_str_Content . $this->ReferenceContainer();
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}
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// take a look if the LOVE ME slug should NOT be displayed on this page/post, remove the short code if found
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if (strpos($p_str_Content, MCI_Footnotes_Config::C_STR_NO_LOVE_SLUG) !== false) {
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self::$a_bool_AllowLoveMe = false;
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$p_str_Content = str_replace(MCI_Footnotes_Config::C_STR_NO_LOVE_SLUG, "", $p_str_Content);
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}
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// return the content with replaced footnotes and optional reference container append
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return $p_str_Content;
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}
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/**
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* Replaces all footnotes in the given content and appends them to the static property.
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*
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* @author Stefan Herndler
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* @since 1.5.0
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* @param string $p_str_Content Content to be searched for footnotes.
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* @param bool $p_bool_ConvertHtmlChars html encode settings, default true.
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* @param bool $p_bool_HideFootnotesText Hide footnotes found in the string.
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* @return string
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*/
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public function search($p_str_Content, $p_bool_ConvertHtmlChars, $p_bool_HideFootnotesText) {
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// post ID to make everything unique wrt infinite scroll and archive view
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global $l_int_PostId;
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$l_int_PostId = get_the_id();
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// contains the index for the next footnote on this page
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$l_int_FootnoteIndex = count(self::$a_arr_Footnotes) + 1;
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// contains the starting position for the lookup of a footnote
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$l_int_PosStart = 0;
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// get start and end tag for the footnotes short code
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$l_str_StartingTag = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_SHORT_CODE_START);
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$l_str_EndingTag = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_SHORT_CODE_END);
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if ($l_str_StartingTag == "userdefined" || $l_str_EndingTag == "userdefined") {
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$l_str_StartingTag = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_SHORT_CODE_START_USER_DEFINED);
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$l_str_EndingTag = MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_SHORT_CODE_END_USER_DEFINED);
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}
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// decode html special chars
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if ($p_bool_ConvertHtmlChars) {
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$l_str_StartingTag = htmlspecialchars($l_str_StartingTag);
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$l_str_EndingTag = htmlspecialchars($l_str_EndingTag);
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}
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// if footnotes short code is empty, return the content without changes
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if (empty($l_str_StartingTag) || empty($l_str_EndingTag)) {
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return $p_str_Content;
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}
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if (!$p_bool_HideFootnotesText) {
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// load template file
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if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_MOUSE_OVER_BOX_ALTERNATIVE))) {
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$l_obj_Template = new MCI_Footnotes_Template(MCI_Footnotes_Template::C_STR_PUBLIC, "footnote-alternative");
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} else {
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$l_obj_Template = new MCI_Footnotes_Template(MCI_Footnotes_Template::C_STR_PUBLIC, "footnote");
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}
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$l_obj_TemplateTooltip = new MCI_Footnotes_Template(MCI_Footnotes_Template::C_STR_PUBLIC, "tooltip");
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} else {
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$l_obj_Template = null;
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$l_obj_TemplateTooltip = null;
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}
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// search footnotes short codes in the content
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do {
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// get first occurrence of the footnote short code [start]
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$i_int_len_Content = strlen($p_str_Content);
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if ($l_int_PosStart > $i_int_len_Content) $l_int_PosStart = $i_int_len_Content;
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$l_int_PosStart = strpos($p_str_Content, $l_str_StartingTag, $l_int_PosStart);
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// no short code found, stop here
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if ($l_int_PosStart === false) {
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break;
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}
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// get first occurrence of a footnote short code [end]
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$l_int_PosEnd = strpos($p_str_Content, $l_str_EndingTag, $l_int_PosStart);
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// no short code found, stop here
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if ($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));
|
||
|
||
// Text to be displayed instead of the footnote
|
||
$l_str_FootnoteReplaceText = "";
|
||
|
||
// display the footnote as mouse-over box
|
||
if (!$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 an excerpt of the footnotes text if enabled
|
||
$l_str_ExcerptText = $l_str_FootnoteText;
|
||
$l_bool_EnableExcerpt = MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_MOUSE_OVER_BOX_EXCERPT_ENABLED));
|
||
$l_int_MaxLength = intval(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_INT_FOOTNOTES_MOUSE_OVER_BOX_EXCERPT_LENGTH));
|
||
|
||
if ($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 .= ' … ' . '<span class="footnote_tooltip_continue" onclick="footnote_moveToAnchor_' . $l_int_PostId . '(\'footnote_plugin_reference_' . $l_int_PostId . '_' . $l_int_Index . '\');">' . MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_TOOLTIP_READON_LABEL) . '</span>';
|
||
}
|
||
}
|
||
|
||
// fill in 'templates/public/footnote.html':
|
||
$l_obj_Template->replace(
|
||
array(
|
||
"post_id" => $l_int_PostId,
|
||
"id" => $l_int_Index,
|
||
"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),
|
||
"text" => MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_MOUSE_OVER_BOX_ENABLED)) ? $l_str_ExcerptText : "",
|
||
)
|
||
);
|
||
$l_str_FootnoteReplaceText = $l_obj_Template->getContent();
|
||
|
||
// reset the template
|
||
$l_obj_Template->reload();
|
||
if (MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_MOUSE_OVER_BOX_ENABLED))) {
|
||
$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));
|
||
|
||
// fill in 'templates/public/tooltip.html':
|
||
$l_obj_TemplateTooltip->replace(
|
||
array(
|
||
"post_id" => $l_int_PostId,
|
||
"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,
|
||
)
|
||
);
|
||
if (!MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_FOOTNOTES_MOUSE_OVER_BOX_ALTERNATIVE))) {
|
||
$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() {
|
||
|
||
// post ID to make everything unique wrt infinite scroll and archive view:
|
||
global $l_int_PostId;
|
||
$l_int_PostId = get_the_id();
|
||
|
||
// no footnotes has been replaced on this page
|
||
if (empty(self::$a_arr_Footnotes)) {
|
||
return "";
|
||
}
|
||
|
||
|
||
// FOOTNOTE INDEX BACKLINK SYMBOL
|
||
|
||
// 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;
|
||
}
|
||
|
||
|
||
// REFERENCE CONTAINER TABLE ROW TEMPLATE LOAD
|
||
|
||
// line breaks for source readability:
|
||
$l_str_Body = "\r\n\r\n";
|
||
// When combine identical 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))) {
|
||
// In the combined template, identifiers only are clickable.
|
||
$l_obj_Template = new MCI_Footnotes_Template(MCI_Footnotes_Template::C_STR_PUBLIC, "reference-container-body-combi");
|
||
} else {
|
||
// In the standard template the whole cell is clickable.
|
||
$l_obj_Template = new MCI_Footnotes_Template(MCI_Footnotes_Template::C_STR_PUBLIC, "reference-container-body");
|
||
}
|
||
|
||
// FILL IN THE TEMPLATE
|
||
|
||
// loop through all footnotes found in the page
|
||
for ($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;
|
||
}
|
||
|
||
// INDEX COLUMN WITH ONE BACKLINK PER TABLE ROW
|
||
|
||
// Standard behavior appropriate for combine identical TURNED OFF
|
||
|
||
// generate content of footnote index cell
|
||
$l_int_FirstFootnoteIndex = ($l_int_Index + 1);
|
||
|
||
// wrap each index # in a white-space:nowrap span
|
||
$l_str_FootnoteArrowIndex = '<span class="footnote_index_item">';
|
||
|
||
// wrap the arrow in a @media print { display:hidden } span (re-used below):
|
||
$l_str_FootnoteArrow = '<span class="footnote_index_arrow">';
|
||
$l_str_FootnoteArrow .= $l_str_Arrow . ' </span>';
|
||
// and add it:
|
||
$l_str_FootnoteArrowIndex .= $l_str_FootnoteArrow;
|
||
|
||
// get the footnote index string and
|
||
// keep supporting legacy index placeholder:
|
||
$l_str_FootnoteIndex = MCI_Footnotes_Convert::Index(($l_int_Index + 1), MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_COUNTER_STYLE));
|
||
|
||
// add the footnote index string to arrow-index string:
|
||
// (span closing tag is added after the if statement)
|
||
$l_str_FootnoteArrowIndex .= $l_str_FootnoteIndex;
|
||
|
||
|
||
|
||
// SUPPORT FOR COMBINE IDENTICAL: COMPOSING ENUMERATED BACKLINKS
|
||
|
||
|
||
// NOW FIRST START from zero again, because the above is useless for
|
||
// enumerating backlinks. The dedicated template uses a new placeholder:
|
||
|
||
$l_str_FootnoteId = $l_str_FootnoteIndex;
|
||
|
||
$l_str_FootnoteBacklinks = '<a id="footnote_plugin_reference_';
|
||
$l_str_FootnoteBacklinks .= $l_int_PostId;
|
||
$l_str_FootnoteBacklinks .= "_$l_str_FootnoteId";
|
||
$l_str_FootnoteBacklinks .= '" class="footnote_backlink" ';
|
||
$l_str_FootnoteBacklinks .= 'onclick="footnote_moveToAnchor_' . $l_int_PostId;
|
||
$l_str_FootnoteBacklinks .= "('footnote_plugin_tooltip_$l_int_PostId";
|
||
$l_str_FootnoteBacklinks .= "_$l_str_FootnoteId');\">";
|
||
$l_str_FootnoteBacklinks .= $l_str_FootnoteArrow;
|
||
$l_str_FootnoteBacklinks .= $l_str_FootnoteId . '</a>';
|
||
|
||
// If this is the only footnote with that text, we’re done.
|
||
|
||
|
||
|
||
// CHECK IF COMBINE IDENTICAL IS TURNED ON, and
|
||
// check if it isn't the last footnote in the array:
|
||
if ($l_int_FirstFootnoteIndex < count(self::$a_arr_Footnotes) && MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_COMBINE_IDENTICAL_FOOTNOTES))) {
|
||
|
||
// get all footnotes that haven't passed yet:
|
||
for ($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] = "";
|
||
|
||
|
||
// HERE GOES THE FRAGMENT IDENTIFIER AND THE BACKLINK TOO:
|
||
// add the footnote index to the actual index:
|
||
|
||
// 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));
|
||
|
||
// keep on composing the backlinks enumeration:
|
||
$l_str_FootnoteBacklinks .= ', <a id="footnote_plugin_reference_';
|
||
$l_str_FootnoteBacklinks .= $l_int_PostId;
|
||
$l_str_FootnoteBacklinks .= "_$l_str_FootnoteId";
|
||
$l_str_FootnoteBacklinks .= '" class="footnote_backlink" ';
|
||
$l_str_FootnoteBacklinks .= 'onclick="footnote_moveToAnchor_' . $l_int_PostId;
|
||
$l_str_FootnoteBacklinks .= "('footnote_plugin_tooltip_$l_int_PostId";
|
||
$l_str_FootnoteBacklinks .= "_$l_str_FootnoteId');\">";
|
||
$l_str_FootnoteBacklinks .= $l_str_FootnoteArrow;
|
||
$l_str_FootnoteBacklinks .= $l_str_FootnoteId . '</a>';
|
||
|
||
|
||
// below is not used:
|
||
$l_str_FootnoteArrowIndex .= ',</span> <span class="footnote_index_item">' . MCI_Footnotes_Convert::Index(($l_int_CheckIndex + 1), MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_COUNTER_STYLE));
|
||
// this legacy neither:
|
||
$l_str_FootnoteIndex .= ', ' . MCI_Footnotes_Convert::Index(($l_int_CheckIndex + 1), MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_COUNTER_STYLE));
|
||
|
||
}
|
||
}
|
||
}
|
||
|
||
// close the outer span FOR WHEN COMBINE IDENTICAL IS TURNED OFF:
|
||
$l_str_FootnoteArrowIndex .= '</span>';
|
||
|
||
// replace all placeholders in 'templates/public/reference-container-body.html'
|
||
// or in 'templates/public/reference-container-body-combi.html'
|
||
// The individual arrow and index placeholders are for backcompat.
|
||
$l_obj_Template->replace(
|
||
array(
|
||
// placeholder used in all templates:
|
||
"text" => $l_str_FootnoteText,
|
||
|
||
// used in standard layout W/O COMBINED FOOTNOTES:
|
||
"post_id" => $l_int_PostId,
|
||
"id" => MCI_Footnotes_Convert::Index($l_int_FirstFootnoteIndex, MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_FOOTNOTES_COUNTER_STYLE)),
|
||
"arrow-index" => $l_str_FootnoteArrowIndex,
|
||
|
||
// used in standard layout WITH COMBINED IDENTICALS TURNED ON:
|
||
"backlinks" => $l_str_FootnoteBacklinks,
|
||
|
||
// Legacy placeholders for use in legacy layout templates:
|
||
"arrow" => $l_str_Arrow,
|
||
"index" => $l_str_FootnoteIndex,
|
||
)
|
||
);
|
||
|
||
// extra line breaks for page source legibility:
|
||
$l_str_Body .= $l_obj_Template->getContent();
|
||
$l_str_Body .= "\r\n\r\n";
|
||
|
||
$l_obj_Template->reload();
|
||
|
||
}
|
||
|
||
// 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" => $l_int_PostId,
|
||
"label" => MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_STR_REFERENCE_CONTAINER_NAME),
|
||
"button-style" => !MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_REFERENCE_CONTAINER_COLLAPSE)) ? 'display: none;' : '',
|
||
"style" => MCI_Footnotes_Convert::toBool(MCI_Footnotes_Settings::instance()->get(MCI_Footnotes_Settings::C_BOOL_REFERENCE_CONTAINER_COLLAPSE)) ? 'display: none;' : '',
|
||
"content" => $l_str_Body,
|
||
)
|
||
);
|
||
|
||
// free all found footnotes if reference container will be displayed
|
||
self::$a_arr_Footnotes = array();
|
||
|
||
return $l_obj_TemplateContainer->getContent();
|
||
}
|
||
}
|