easy-footnotes / easy-footnotes.php

easy-footnotes.php in Easy Footnotes 1.0.14, at easy-footnotes.php

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1	<?php
2	/**
3	* Plugin Name: Easy Footnotes
4	* Plugin URI: http://jasonyingling.me/easy-footnotes-wordpress/
5	* Description: Easily add footnotes to your posts with a simple shortcode.
6	* Version: 1.0.14
7	* Author: Jason Yingling
8	* Author URI: http://jasonyingling.me
9	* License: GPL2
10	*/
11
12	/* Copyright 2017 Jason Yingling (email : yingling017@gmail.com)
13
14	This program is free software; you can redistribute it and/or modify
15	it under the terms of the GNU General Public License, version 2, as
16	published by the Free Software Foundation.
17
18	This program is distributed in the hope that it will be useful,
19	but WITHOUT ANY WARRANTY; without even the implied warranty of
20	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21	GNU General Public License for more details.
22
23	You should have received a copy of the GNU General Public License
24	along with this program; if not, write to the Free Software
25	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
26	*/
27
28	class easyFootnotes {
29
30	// Add label option using add_option if it does not already exist
31	public $footnotes = array();
32	public $footnoteCount = 0;
33	public $prevPost;
34
35	public function __construct() {
36	$footnoteSettings = array(
37	'footnoteLabel' => 'Footnotes',
38	'useLabel' => false,
39	);
40
41	add_option('easy_footnotes_options', $footnoteSettings);
42	add_shortcode( 'note', array($this, 'easy_footnote_shortcode') );
43	add_filter('the_content', array($this, 'easy_footnote_after_content'), 20);
44	add_action('wp_enqueue_scripts', array($this, 'register_qtip_scripts'));
45	add_action('admin_menu', array($this, 'easy_footnotes_admin_actions'));
46	add_action( 'admin_enqueue_scripts', array($this, 'easy_footnotes_admin_scripts') );
47	}
48
49	public function register_qtip_scripts() {
50	wp_register_script( 'imagesloaded', plugins_url( '/assets/qtip/imagesloaded.pkgd.min.js' , __FILE__ ), null, false, true );
51	wp_register_script( 'qtip', plugins_url( '/assets/qtip/jquery.qtip.min.js' , __FILE__ ), array('jquery', 'imagesloaded'), false, true );
52	wp_register_script( 'qtipcall', plugins_url( '/assets/qtip/jquery.qtipcall.js' , __FILE__ ), array('jquery', 'qtip'), false, true );
53	wp_register_style( 'qtipstyles', plugins_url( '/assets/qtip/jquery.qtip.min.css' , __FILE__ ), null, false, false );
54	wp_register_style( 'easyfootnotescss', plugins_url( '/assets/easy-footnotes.css' , __FILE__ ), null, false, false );
55	}
56
57	public function easy_footnote_shortcode($atts, $content = null) {
58	wp_enqueue_style( 'qtipstyles' );
59	wp_enqueue_style( 'easyfootnotescss' );
60	wp_enqueue_script( 'imagesloaded' );
61	wp_enqueue_script( 'qtip' );
62	wp_enqueue_script( 'qtipcall' );
63	wp_enqueue_style( 'dashicons' );
64
65	extract (shortcode_atts(array(
66	), $atts));
67
68	// Get an array of all of the footnotes
69	$pattern = '/\[note\](.*?)\[\/note\]/';
70	preg_match_all( $pattern, get_the_content( get_the_ID() ), $shortcodes );
71
72	// If the current content matches the first [note] set the count to 0. This prevents extra counting by themes using the_content
73	if ( isset( $shortcodes[1][0] ) && $content === $shortcodes[1][0] ) {
74	$count = 0;
75	} else {
76	$count = $this->footnoteCount;
77	}
78
79	// Increment the counter
80	$count++;
81
82	// Set the footnoteCount (This whole process needs reworked)
83	$this->footnoteCount = $count;
84
85	//$this->easy_footnote_count($this->footnoteCount, get_the_ID());
86	$this->easy_footnote_content($content);
87
88	if (is_singular() && is_main_query()) {
89	$footnoteLink = '#easy-footnote-bottom-'.$this->footnoteCount;
90	} else {
91	$footnoteLink = get_permalink(get_the_ID()).'#easy-footnote-bottom-'.$this->footnoteCount;
92	}
93
94	$footnoteContent = "<span id='easy-footnote-".esc_attr($this->footnoteCount)."' class='easy-footnote-margin-adjust'></span><span class='easy-footnote'><a href='".esc_url($footnoteLink)."' title='".htmlspecialchars($content, ENT_QUOTES)."'><sup>".esc_html($this->footnoteCount)."</sup></a></span>";
95
96	return $footnoteContent;
97	}
98
99	public function easy_footnote_content($content) {
100	$this->footnotes[$this->footnoteCount] = $content;
101
102	return $this->footnotes;
103	}
104
105	public function easy_footnote_count($count, $currentPost) {
106	if ($this->prevPost != $currentPost) {
107	$count = 0;
108	}
109
110	$this->prevPost = $currentPost;
111
112	$count++;
113
114	$this->footnoteCount = $count;
115
116	return $this->footnoteCount;
117	}
118
119	public function easy_footnote_after_content($content) {
120	if (is_singular() && is_main_query()) {
121	$footnotesInsert = $this->footnotes;
122
123	$footnoteCopy = '';
124
125	$footnoteOptions = get_option('easy_footnotes_options');
126	$useLabel = $footnoteOptions['useLabel'];
127	$efLabel = $footnoteOptions['footnoteLabel'];
128
129	foreach ($footnotesInsert as $count => $footnote) {
130	$footnoteCopy .= '<li class="easy-footnote-single"><span id="easy-footnote-bottom-'.esc_attr($count).'" class="easy-footnote-margin-adjust"></span>'.wp_kses_post($footnote).'<a class="easy-footnote-to-top" href="'.esc_url('#easy-footnote-'.$count).'"></a></li>';
131	}
132	if (!empty($footnotesInsert)) {
133	if ($useLabel === true) {
134	$content .= '<div class="easy-footnote-title"><h4>'.esc_html($efLabel).'</h4></div><ol class="easy-footnotes-wrapper">'.$footnoteCopy.'</ol>';
135	} else {
136	$content .= '<ol class="easy-footnotes-wrapper">'.$footnoteCopy.'</ol>';
137	}
138	}
139
140
141	}
142	return $content;
143	}
144
145	// Functions to create Reading Time admin pages
146	public function easy_footnotes_admin() {
147	include('easy-footnotes-admin.php');
148	}
149
150	public function easy_footnotes_admin_actions() {
151	add_options_page("Easy Footnotes Settings", "Easy Footnotes", "manage_options", "easy-footnotes-settings", array($this, "easy_footnotes_admin"));
152	}
153
154	public function easy_footnotes_admin_scripts() {
155	wp_enqueue_style( 'easy-footnotes-admin-styles', plugins_url( '/assets/easy-footnotes-admin.css' , __FILE__ ), '', '1.0.13' );
156	}
157
158	}
159
160	$easyFootnotes = new easyFootnotes();
161