easy-footnotes / easy-footnotes.php

easy-footnotes.php in Easy Footnotes 1.0.10, 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: 1.0.10
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($this, 'easy_footnotes_admin_actions'));
46	}
47
48	public function register_qtip_scripts() {
49	wp_register_script( 'imagesloaded', plugins_url( '/assets/qtip/imagesloaded.pkgd.min.js' , __FILE__ ), null, false, true );
50	wp_register_script( 'qtip', plugins_url( '/assets/qtip/jquery.qtip.min.js' , __FILE__ ), array('jquery', 'imagesloaded'), false, true );
51	wp_register_script( 'qtipcall', plugins_url( '/assets/qtip/jquery.qtipcall.js' , __FILE__ ), array('jquery', 'qtip'), false, true );
52	wp_register_style( 'qtipstyles', plugins_url( '/assets/qtip/jquery.qtip.min.css' , __FILE__ ), null, false, false );
53	wp_register_style( 'easyfootnotescss', plugins_url( '/assets/easy-footnotes.css' , __FILE__ ), null, false, false );
54	}
55
56	public function easy_footnote_shortcode($atts, $content = null) {
57	wp_enqueue_style( 'qtipstyles' );
58	wp_enqueue_style( 'easyfootnotescss' );
59	wp_enqueue_script( 'imagesloaded' );
60	wp_enqueue_script( 'qtip' );
61	wp_enqueue_script( 'qtipcall' );
62	wp_enqueue_style( 'dashicons' );
63
64	extract (shortcode_atts(array(
65	), $atts));
66
67	$this->easy_footnote_count($this->footnoteCount, get_the_ID());
68	$this->easy_footnote_content($content);
69
70	if (is_singular() && is_main_query()) {
71	$footnoteLink = '#easy-footnote-bottom-'.$this->footnoteCount;
72	} else {
73	$footnoteLink = get_permalink(get_the_ID()).'#easy-footnote-bottom-'.$this->footnoteCount;
74	}
75
76	$footnoteContent = "<span id='easy-footnote-".esc_attr($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>";
77
78	return $footnoteContent;
79	}
80
81	public function easy_footnote_content($content) {
82	$this->footnotes[$this->footnoteCount] = $content;
83
84	return $this->footnotes;
85	}
86
87	public function easy_footnote_count($count, $currentPost) {
88	if ($this->prevPost != $currentPost) {
89	$count = 0;
90	}
91
92	$this->prevPost = $currentPost;
93
94	$count++;
95
96	$this->footnoteCount = $count;
97
98	return $this->footnoteCount;
99	}
100
101	// Calculate reading time by running it through the_content
102	public function easy_footnote_after_content($content) {
103	if (is_singular() && is_main_query()) {
104	$footnotesInsert = $this->footnotes;
105	global $footnoteCopy;
106
107	$footnoteOptions = get_option('easy_footnotes_options');
108	$useLabel = $footnoteOptions['useLabel'];
109	$efLabel = $footnoteOptions['footnoteLabel'];
110
111	foreach ($footnotesInsert as $count => $footnote) {
112	$footnoteCopy .= '<li class="easy-footnote-single"><span id="easy-footnote-bottom-'.esc_attr($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>';
113	}
114	if (!empty($footnotesInsert)) {
115	if ($useLabel === true) {
116	$content .= '<div class="easy-footnote-title"><h4>'.esc_html($efLabel).'</h4></div><ol class="easy-footnotes-wrapper">'.$footnoteCopy.'</ol>';
117	} else {
118	$content .= '<ol class="easy-footnotes-wrapper">'.$footnoteCopy.'</ol>';
119	}
120	}
121
122
123	}
124	return $content;
125	}
126
127	// Functions to create Reading Time admin pages
128	public function easy_footnotes_admin() {
129	include('easy-footnotes-admin.php');
130	}
131
132	public function easy_footnotes_admin_actions() {
133	add_options_page("Easy Footnotes Settings", "Easy Footnotes", "manage_options", "easy-footnotes-settings", array($this, "easy_footnotes_admin"));
134	}
135
136	}
137
138	$easyFootnotes = new easyFootnotes();
139