365 lines
14 KiB
PHP
365 lines
14 KiB
PHP
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<?php
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/**
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* Created by Stefan Herndler.
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* User: Stefan
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* Date: 30.07.14 12:07
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* Version: 1.0
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* Since: 1.3
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*/
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// define class only once
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if (!class_exists("MCI_Footnotes_Task")) :
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/**
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* Class MCI_Footnotes_Task
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* @since 1.3
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*/
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class MCI_Footnotes_Task {
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// array containing the settings
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public $a_arr_Settings = array();
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// bool admin allows the Love Me slug
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public static $a_bool_AllowLoveMe = true;
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// array containing all found footnotes
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public static $a_arr_Footnotes = array();
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/**
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* @constructor
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* @since 1.3
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*/
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public function __construct() {
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require_once(dirname( __FILE__ ) . "/admin.php");
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// load footnote settings
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$this->a_arr_Settings = MCI_Footnotes_getOptions(false);
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}
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/**
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* add WordPress hooks
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* @since 1.3
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*/
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public function Register() {
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// adds the custom css to the header
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add_action('wp_head', array($this, "Header"));
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// stops listening to the output and replaces the footnotes
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add_action('get_footer', array($this, "Footer"));
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// adds the love and share me slug to the footer
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add_action('wp_footer', array($this, "Love"));
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// moves these contents through the replacement function
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add_filter('the_content', array($this, "Content"));
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add_filter('the_excerpt', array($this, "Excerpt"));
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add_filter('widget_title', array($this, "WidgetTitle"));
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add_filter('widget_text', array($this, "WidgetText"));
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}
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/**
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* outputs the custom css to the header
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* @since 1.3
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*/
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public function Header() {
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?>
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<style type="text/css" media="screen"><?php echo $this->a_arr_Settings[FOOTNOTES_INPUT_CUSTOM_CSS]; ?></style>
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<?php
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}
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/**
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* replaces footnotes tags in the post content
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* @since 1.3
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* @param string $p_str_Content
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* @return string
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*/
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public function Content($p_str_Content) {
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// returns content
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return $this->exec($p_str_Content, $this->a_arr_Settings[FOOTNOTES_INPUT_REFERENCE_CONTAINER_PLACE] == "post_end" ? true : false);
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}
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/**
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* replaces footnotes tags in the post excerpt
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* @since 1.3
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* @param string $p_str_Content
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* @return string
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*/
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public function Excerpt($p_str_Content) {
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require_once(dirname( __FILE__ ) . "/convert.php");
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// search in the excerpt only if activated
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if (MCI_Footnotes_Convert::toBool($this->a_arr_Settings[FOOTNOTES_INPUT_SEARCH_IN_EXCERPT])) {
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return $this->exec($p_str_Content, false);
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}
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// returns content
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return $p_str_Content;
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}
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/**
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* replaces footnotes tags in the widget title
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* @since 1.3
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* @param string $p_str_Content
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* @return string
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*/
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public function WidgetTitle($p_str_Content) {
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// returns content
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return $p_str_Content;
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}
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/**
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* replaces footnotes tags in the widget text
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* @since 1.3
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* @param string $p_str_Content
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* @return string
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*/
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public function WidgetText($p_str_Content) {
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// returns content
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return $this->exec( $p_str_Content, $this->a_arr_Settings[FOOTNOTES_INPUT_REFERENCE_CONTAINER_PLACE] == "post_end" ? true : false);
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}
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/**
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* outputs the reference container to the footer
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* @since 1.3
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*/
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public function Footer() {
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if ($this->a_arr_Settings[FOOTNOTES_INPUT_REFERENCE_CONTAINER_PLACE] == "footer") {
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echo $this->ReferenceContainer();
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}
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}
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/**
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* output the love me slug in the footer
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* @since 1.3
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*/
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public function Love() {
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// get setting for love and share this plugin and convert it to boolean
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$l_str_LoveMeText = $this->a_arr_Settings[FOOTNOTES_INPUT_LOVE];
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// check if the admin allows to add a link to the footer
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if (empty($l_str_LoveMeText) || strtolower($l_str_LoveMeText) == "no" || !self::$a_bool_AllowLoveMe) {
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return;
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}
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// get random love me text
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if (strtolower($l_str_LoveMeText) == "random") {
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$l_str_LoveMeText = "text-" . rand(1,3);
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}
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switch ($l_str_LoveMeText) {
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case "text-1":
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$l_str_LoveMeText = sprintf(__('I %s %s', FOOTNOTES_PLUGIN_NAME), FOOTNOTES_LOVE_SYMBOL, FOOTNOTES_PLUGIN_PUBLIC_NAME_LINKED);
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break;
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case "text-2":
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$l_str_LoveMeText = sprintf(__('this site uses the awesome %s Plugin', FOOTNOTES_PLUGIN_NAME), FOOTNOTES_PLUGIN_PUBLIC_NAME_LINKED);
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break;
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case "text-3":
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default:
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$l_str_LoveMeText = sprintf(__('extra smooth %s', FOOTNOTES_PLUGIN_NAME), FOOTNOTES_PLUGIN_PUBLIC_NAME_LINKED);
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break;
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}
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echo '<div style="text-align:center; color:#acacac;">' . $l_str_LoveMeText . '</div>';
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}
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/**
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* replaces all footnotes in the given content
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* loading settings if not happened yet since 1.0-gamma
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* @since 1.0
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* @param string $p_str_Content
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* @param bool $p_bool_OutputReferences [default: true]
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* @return string
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*/
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public function exec($p_str_Content, $p_bool_OutputReferences = true) {
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// replace all footnotes in the content
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$p_str_Content = $this->Lookup($p_str_Content, true);
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$p_str_Content = $this->Lookup($p_str_Content, false);
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// add the reference list if set
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if ($p_bool_OutputReferences) {
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$p_str_Content = $p_str_Content . $this->ReferenceContainer();
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}
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// checks if the user doesn't want to have a 'love me' on current page
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// @since 1.1.1
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if (strpos($p_str_Content, FOOTNOTES_NO_SLUGME_PLUG) !== false) {
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self::$a_bool_AllowLoveMe = false;
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$p_str_Content = str_replace(FOOTNOTES_NO_SLUGME_PLUG, "", $p_str_Content);
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}
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// return the replaced content
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return $p_str_Content;
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}
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/**
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* replace all footnotes in the given string and adds them to an array
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* using a personal starting and ending tag for the footnotes since 1.0-gamma
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* @since 1.0
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* @param string $p_str_Content
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* @param bool $p_bool_ConvertHtmlChars
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* @return string
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*/
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public function Lookup($p_str_Content, $p_bool_ConvertHtmlChars = true) {
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require_once(dirname( __FILE__ ) . "/convert.php");
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// contains the index for the next footnote on this page
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$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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// contains the footnote template
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$l_str_FootnoteTemplate = file_get_contents(FOOTNOTES_TEMPLATES_DIR . "footnote.html");
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// get footnote starting tag
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$l_str_StartingTag = $this->a_arr_Settings[FOOTNOTES_INPUT_PLACEHOLDER_START];
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// get footnote ending tag
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$l_str_EndingTag = $this->a_arr_Settings[FOOTNOTES_INPUT_PLACEHOLDER_END];
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// get footnote counter style
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$l_str_CounterStyle = $this->a_arr_Settings[FOOTNOTES_INPUT_COUNTER_STYLE];
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if ($l_str_StartingTag == "userdefined" || $l_str_EndingTag == "userdefined") {
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// get user defined footnote starting tag
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$l_str_StartingTag = $this->a_arr_Settings[FOOTNOTES_INPUT_PLACEHOLDER_START_USERDEFINED];
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// get user defined footnote ending tag
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$l_str_EndingTag = $this->a_arr_Settings[FOOTNOTES_INPUT_PLACEHOLDER_END_USERDEFINED];
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}
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// decode html special chars
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if ($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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// check for a footnote placeholder in the current page
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do {
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// get first occurrence of a footnote starting tag
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$l_int_PosStart = strpos($p_str_Content, $l_str_StartingTag, $l_int_PosStart);
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// tag not found
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if ($l_int_PosStart === false) {
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break;
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}
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// get first occurrence of a footnote ending tag after the starting tag
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$l_int_PosEnd = strpos($p_str_Content, $l_str_EndingTag, $l_int_PosStart);
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// tag not found
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if ($l_int_PosEnd === false) {
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$l_int_PosStart++;
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continue;
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}
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// get length of footnote text
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$l_int_Length = $l_int_PosEnd - $l_int_PosStart;
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// get text inside footnote
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$l_str_FootnoteText = substr($p_str_Content, $l_int_PosStart + strlen($l_str_StartingTag), $l_int_Length - strlen($l_str_StartingTag));
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// set replacing string for the footnote
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$l_str_ReplaceText = str_replace("[[FOOTNOTE INDEX]]", MCI_Footnotes_Convert::Index($l_int_FootnoteIndex, $l_str_CounterStyle), $l_str_FootnoteTemplate);
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$l_str_ReplaceText = str_replace("[[FOOTNOTE TEXT]]", $l_str_FootnoteText, $l_str_ReplaceText);
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$l_str_ReplaceText = preg_replace('@[\s]{2,}@',' ',$l_str_ReplaceText);
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// replace footnote in content
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$p_str_Content = substr_replace($p_str_Content, $l_str_ReplaceText, $l_int_PosStart, $l_int_Length + strlen($l_str_EndingTag));
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// set footnote to the output box at the end
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self::$a_arr_Footnotes[] = $l_str_FootnoteText;
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// increase footnote index
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$l_int_FootnoteIndex++;
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// add offset to the new starting position
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$l_int_PosStart += ($l_int_PosEnd - $l_int_PosStart);
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} while (true);
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// return content
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return $p_str_Content;
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}
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/**
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* looks through all footnotes that has been replaced in the current content and
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* adds a reference to the footnote at the end of the content
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* function to collapse the reference container since 1.0-beta
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* @since 1.0
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* @return string
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*/
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public function ReferenceContainer() {
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// no footnotes has been replaced on this page
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if (empty(self::$a_arr_Footnotes)) {
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return "";
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}
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require_once(dirname( __FILE__ ) . "/convert.php");
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// get setting for combine identical footnotes and convert it to boolean
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$l_bool_CombineIdentical = MCI_Footnotes_Convert::toBool($this->a_arr_Settings[FOOTNOTES_INPUT_COMBINE_IDENTICAL]);
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// get setting for preferences label
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$l_str_ReferencesLabel = $this->a_arr_Settings[FOOTNOTES_INPUT_REFERENCES_LABEL];
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// get setting for collapse reference footnotes and convert it to boolean
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$l_bool_CollapseReference = MCI_Footnotes_Convert::toBool($this->a_arr_Settings[FOOTNOTES_INPUT_COLLAPSE_REFERENCES]);
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// get footnote counter style
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$l_str_CounterStyle = $this->a_arr_Settings[FOOTNOTES_INPUT_COUNTER_STYLE];
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// add expand/collapse buttons to the reference label if collapsed by default
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// @since 1.2.2
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$l_str_CollapseButtons = "";
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if ($l_bool_CollapseReference) {
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$l_str_CollapseButtons = ' [ <a id="footnote_reference_container_collapse_button" style="cursor:pointer;" onclick="footnote_expand_collapse_reference_container();">+</a> ]';
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}
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// output string, prepare it with the reference label as headline
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$l_str_Output = '<div class="footnote_container_prepare"><p><span onclick="footnote_expand_reference_container();">' . $l_str_ReferencesLabel . '</span><span>' .$l_str_CollapseButtons . '</span></p></div>';
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// add a box around the footnotes
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$l_str_Output .= '<div id="' . FOOTNOTES_REFERENCES_CONTAINER_ID . '"';
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// add class to hide the references by default, if the user wants it
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if ($l_bool_CollapseReference) {
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$l_str_Output .= ' class="footnote_hide_box"';
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}
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$l_str_Output .= '>';
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// contains the footnote template
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$l_str_FootnoteTemplate = file_get_contents(FOOTNOTES_TEMPLATES_DIR . "container.html");
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// loop through all footnotes found in the page
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for ($l_str_Index = 0; $l_str_Index < count(self::$a_arr_Footnotes); $l_str_Index++) {
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// get footnote text
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$l_str_FootnoteText = self::$a_arr_Footnotes[$l_str_Index];
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// if footnote is empty, get to the next one
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if (empty($l_str_FootnoteText)) {
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continue;
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}
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// get footnote index
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$l_str_FirstFootnoteIndex = ($l_str_Index + 1);
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$l_str_FootnoteIndex = MCI_Footnotes_Convert::Index(($l_str_Index + 1), $l_str_CounterStyle);
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// check if it isn't the last footnote in the array
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if ($l_str_FirstFootnoteIndex < count(self::$a_arr_Footnotes) && $l_bool_CombineIdentical) {
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// get all footnotes that I haven't passed yet
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for ($l_str_CheckIndex = $l_str_FirstFootnoteIndex; $l_str_CheckIndex < count(self::$a_arr_Footnotes); $l_str_CheckIndex++) {
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// check if a further footnote is the same as the actual one
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if ($l_str_FootnoteText == self::$a_arr_Footnotes[$l_str_CheckIndex] && !empty($g_arr_Footnotes[$l_str_CheckIndex])) {
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// set the further footnote as empty so it won't be displayed later
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$g_arr_Footnotes[$l_str_CheckIndex] = "";
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// add the footnote index to the actual index
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$l_str_FootnoteIndex .= ", " . MCI_Footnotes_Convert::Index(($l_str_CheckIndex + 1), $l_str_CounterStyle);
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}
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}
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}
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// add the footnote to the output box
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// added function to convert the counter style in the reference container (bugfix for the link to the footnote) in version 1.0.6
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$l_str_ReplaceText = str_replace("[[FOOTNOTE INDEX SHORT]]", MCI_Footnotes_Convert::Index($l_str_FirstFootnoteIndex, $l_str_CounterStyle), $l_str_FootnoteTemplate);
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$l_str_ReplaceText = str_replace("[[FOOTNOTE INDEX]]", $l_str_FootnoteIndex, $l_str_ReplaceText);
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$l_str_ReplaceText = str_replace("[[FOOTNOTE TEXT]]", $l_str_FootnoteText, $l_str_ReplaceText);
|
||
|
|
$l_str_ReplaceText = preg_replace('@[\s]{2,}@',' ',$l_str_ReplaceText);
|
||
|
|
// add the footnote container to the output
|
||
|
|
$l_str_Output = $l_str_Output . $l_str_ReplaceText;
|
||
|
|
}
|
||
|
|
// add closing tag for the div of the references container
|
||
|
|
$l_str_Output = $l_str_Output . '</div>';
|
||
|
|
// add a javascript to expand the reference container when clicking on a footnote or the reference label
|
||
|
|
$l_str_Output .= '
|
||
|
|
<script type="text/javascript">
|
||
|
|
function footnote_expand_reference_container(p_str_ID) {
|
||
|
|
jQuery("#' . FOOTNOTES_REFERENCES_CONTAINER_ID . '").show();
|
||
|
|
if (p_str_ID.length > 0) {
|
||
|
|
jQuery(p_str_ID).focus();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
function footnote_expand_collapse_reference_container() {
|
||
|
|
var l_obj_ReferenceContainer = jQuery("#' . FOOTNOTES_REFERENCES_CONTAINER_ID . '");
|
||
|
|
if (l_obj_ReferenceContainer.is(":hidden")) {
|
||
|
|
l_obj_ReferenceContainer.show();
|
||
|
|
jQuery("#footnote_reference_container_collapse_button").text("-");
|
||
|
|
} else {
|
||
|
|
l_obj_ReferenceContainer.hide();
|
||
|
|
jQuery("#footnote_reference_container_collapse_button").text("+");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
</script>
|
||
|
|
';
|
||
|
|
|
||
|
|
// free all found footnotes if reference container will be displayed
|
||
|
|
self::$a_arr_Footnotes = array();
|
||
|
|
// return the output string
|
||
|
|
return $l_str_Output;
|
||
|
|
}
|
||
|
|
|
||
|
|
} // class MCI_Footnotes_Task
|
||
|
|
|
||
|
|
endif;
|