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Ben Goldsworthy
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plugins/easy-footnotes/easy-footnotes.php
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plugins/easy-footnotes/easy-footnotes.php
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<?php
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/**
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* Plugin Name: Easy Footnotes
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* Plugin URI: http://jasonyingling.me/easy-footnotes-wordpress/
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* Description: Easily add footnotes to your posts with a simple shortcode.
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* Version: 1.0.8
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* Author: Jason Yingling
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* Author URI: http://jasonyingling.me
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* License: GPL2
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*/
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/* Copyright 2015 Jason Yingling (email : yingling017@gmail.com)
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2, as
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published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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class easyFootnotes {
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// Add label option using add_option if it does not already exist
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public $footnotes = array();
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public $footnoteCount = 0;
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public $prevPost;
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public function __construct() {
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$footnoteSettings = array(
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'footnoteLabel' => 'Footnotes',
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'useLabel' => false,
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);
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add_option('easy_footnotes_options', $footnoteSettings);
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add_shortcode( 'note', array($this, 'easy_footnote_shortcode') );
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add_filter('the_content', array($this, 'easy_footnote_after_content'), 20);
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add_action('wp_enqueue_scripts', array($this, 'register_qtip_scripts'));
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add_action('admin_menu', array($this, 'easy_footnotes_admin_actions'));
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}
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public function register_qtip_scripts() {
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wp_register_script( 'imagesloaded', plugins_url( '/assets/qtip/imagesloaded.pkgd.min.js' , __FILE__ ), null, false, true );
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wp_register_script( 'qtip', plugins_url( '/assets/qtip/jquery.qtip.min.js' , __FILE__ ), array('jquery', 'imagesloaded'), false, true );
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wp_register_script( 'qtipcall', plugins_url( '/assets/qtip/jquery.qtipcall.js' , __FILE__ ), array('jquery', 'qtip'), false, true );
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wp_register_style( 'qtipstyles', plugins_url( '/assets/qtip/jquery.qtip.min.css' , __FILE__ ), null, false, false );
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wp_register_style( 'easyfootnotescss', plugins_url( '/assets/easy-footnotes.css' , __FILE__ ), null, false, false );
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}
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public function easy_footnote_shortcode($atts, $content = null) {
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wp_enqueue_style( 'qtipstyles' );
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wp_enqueue_style( 'easyfootnotescss' );
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wp_enqueue_script( 'imagesloaded' );
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wp_enqueue_script( 'qtip' );
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wp_enqueue_script( 'qtipcall' );
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wp_enqueue_style( 'dashicons' );
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extract (shortcode_atts(array(
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), $atts));
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$this->easy_footnote_count($this->footnoteCount, get_the_ID());
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$this->easy_footnote_content($content);
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if (is_singular() && is_main_query()) {
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$footnoteLink = '#easy-footnote-bottom-'.$this->footnoteCount;
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} else {
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$footnoteLink = get_permalink(get_the_ID()).'#easy-footnote-bottom-'.$this->footnoteCount;
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}
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$footnoteContent = "<span id='easy-footnote-".$this->footnoteCount."' class='easy-footnote-margin-adjust'></span><span class='easy-footnote'><a href='".$footnoteLink."' title='$content'><sup>$this->footnoteCount</sup></a></span>";
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return $footnoteContent;
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}
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public function easy_footnote_content($content) {
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$this->footnotes[$this->footnoteCount] = $content;
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return $this->footnotes;
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}
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public function easy_footnote_count($count, $currentPost) {
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if ($this->prevPost != $currentPost) {
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$count = 0;
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}
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$this->prevPost = $currentPost;
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$count++;
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$this->footnoteCount = $count;
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return $this->footnoteCount;
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}
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// Calculate reading time by running it through the_content
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public function easy_footnote_after_content($content) {
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if (is_singular() && is_main_query()) {
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$footnotesInsert = $this->footnotes;
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global $footnoteCopy;
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$footnoteOptions = get_option('easy_footnotes_options');
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$useLabel = $footnoteOptions['useLabel'];
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$efLabel = $footnoteOptions['footnoteLabel'];
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foreach ($footnotesInsert as $count => $footnote) {
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$footnoteCopy .= '<li class="easy-footnote-single"><span id="easy-footnote-bottom-'.$count.'" class="easy-footnote-margin-adjust"></span>'.$footnote.'<a class="easy-footnote-to-top" href="#easy-footnote-'.$count.'"></a></li>';
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}
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if (!empty($footnotesInsert)) {
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if ($useLabel === true) {
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$content .= '<div class="easy-footnote-title"><h4>'.$efLabel.'</h4></div><ol class="easy-footnotes-wrapper">'.$footnoteCopy.'</ol>';
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} else {
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$content .= '<ol class="easy-footnotes-wrapper">'.$footnoteCopy.'</ol>';
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}
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}
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}
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return $content;
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}
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// Functions to create Reading Time admin pages
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public function easy_footnotes_admin() {
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include('easy-footnotes-admin.php');
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}
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public function easy_footnotes_admin_actions() {
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add_options_page("Easy Footnotes Settings", "Easy Footnotes", "manage_options", "easy-footnotes-settings", array($this, "easy_footnotes_admin"));
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}
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}
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$easyFootnotes = new easyFootnotes();
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?>
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