categorized-tag-cloud / categorized-tag-cloud.php

categorized-tag-cloud.php in Categorized Tag Cloud trunk, at categorized-tag-cloud.php

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1	<?php
2	/*
3	Plugin Name: Categorized Tag Cloud
4	Plugin URI: https://www.whiletrue.it/
5	Description: Takes the website tags and aggregates them into a categorized cloud widget for sidebar.
6	Author: WhileTrue
7	Version: 1.2.25
8	Author URI: https://www.whiletrue.it/
9	*/
10
11	/*
12	This program is free software; you can redistribute it and/or modify
13	it under the terms of the GNU General Public License version 2,
14	as published by the Free Software Foundation.
15
16	This program is distributed in the hope that it will be useful,
17	but WITHOUT ANY WARRANTY; without even the implied warranty of
18	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19	GNU General Public License for more details.
20	*/
21
22	function categorized_tag_cloud($instance)
23	{
24
25	$plugin_name = 'categorized-tag-cloud';
26
27	// RETRIEVE TAGS
28	$words_color = $instance['words_color'];
29	$hover_color = (isset($instance['hover_color']) && $instance['hover_color'] != '') ? $instance['hover_color'] : 'black';
30	$number = (isset($instance['words_number']) && is_numeric($instance['words_number']) && $instance['words_number'] > 0) ? $instance['words_number'] : 20;
31	$smallest_font = (isset($instance['smallest_font']) && is_numeric($instance['smallest_font']) && $instance['smallest_font'] > 0) ? $instance['smallest_font'] : 7;
32	$largest_font = (isset($instance['largest_font']) && is_numeric($instance['largest_font']) && $instance['largest_font'] > 0) ? $instance['largest_font'] : 14;
33	$order = (isset($instance['order']) && $instance['order'] == 'a') ? 'ASC' : 'RAND';
34
35	$exclude_items = [];
36	$category_filters = (array) json_decode($instance['category_filters']);
37	if (!isset($category_filters['cat']) \|\| !is_array($category_filters['cat'])) {
38	$category_filters['cat'] = [];
39	}
40	for ($i = 0; $i < count($category_filters['cat']); $i++) {
41	if (is_category($category_filters['cat'][$i]) \|\| (is_single() && in_category($category_filters['cat'][$i]))) {
42	$exclude_items[] = $category_filters['tag'][$i];
43	}
44	}
45
46	$tags = wp_tag_cloud('smallest=' . $smallest_font . '&largest=' . $largest_font . '&number=' . $number . '&order=' . $order . '&format=array&exclude=' . implode(',', $exclude_items));
47
48	$out = '';
49	$out_style = '
50	#' . $plugin_name . ' a, #' . $plugin_name . ' a:visited { text-decoration:none; }
51	#' . $plugin_name . ' a:hover { text-decoration:none; color:' . $hover_color . '; }';
52	if (is_array($tags)) {
53	foreach ($tags as $num => $tag) {
54	$i = $num + 1;
55	$out .= '<span id="' . $plugin_name . '-el-' . $i . '">' . $tag . '</span> ';
56
57	$the_color = ($words_color == '') ? '#' . str_pad(dechex(rand(0, 4096)), 3, '0', STR_PAD_LEFT) : $words_color;
58	$out_style .= '
59	#' . $plugin_name . '-el-' . $i . ' a, #' . $plugin_name . '-el-' . $i . ' a:visited { color:' . $the_color . '; }';
60	}
61	}
62
63	return '
64	<div id="' . $plugin_name . '">' . $out . '</div>
65	<style>
66	' . $out_style . '
67	</style>';
68	}
69
70
71	//////////
72
73
74	/**
75	* CategorizedTagCloudWidget Class
76	*/
77	class CategorizedTagCloudWidget extends WP_Widget
78	{
79	private
80	/** @type {string} */
81	$languagePath;
82
83	/** constructor */
84	function __construct()
85	{
86	$this->languagePath = basename(dirname(__FILE__)) . '/lang';
87	load_plugin_textdomain('categorized-tag-cloud', 'false', $this->languagePath);
88
89	$this->options = [
90	[
91	'name' => 'title', 'label' => 'Title:',
92	'type' => 'text'
93	],
94	[
95	'name' => 'words_number', 'label' => 'How many tags to show:',
96	'type' => 'text'
97	],
98	[
99	'name' => 'words_color', 'label' => 'Word color (random if not entered):',
100	'type' => 'text'
101	],
102	[
103	'name' => 'hover_color', 'label' => 'Hover color (black if not entered):',
104	'type' => 'text'
105	],
106	[
107	'name' => 'smallest_font', 'label' => 'Smallest font size (default is 7):',
108	'type' => 'text'
109	],
110	[
111	'name' => 'largest_font', 'label' => 'Largest font size (default is 14):',
112	'type' => 'text'
113	],
114	[
115	'name' => 'order', 'label' => 'Order:',
116	'type' => 'radio', 'values' => ['' => 'Random', 'a' => 'Alphanumeric'],
117	],
118	[
119	'label' => 'Category filters',
120	'type' => 'separator'
121	],
122	[
123	'type' => 'category_filters'
124	],
125	[
126	'type' => 'donate'
127	],
128	];
129
130	$control_ops = ['width' => 500];
131	parent::__construct(false, 'Categorized Tag Cloud', [], $control_ops);
132	}
133
134	function widget($args, $instance)
135	{
136	extract($args);
137	$title = apply_filters('widget_title', $instance['title']);
138	echo $before_widget;
139	if ($title) echo $before_title . $title . $after_title;
140	echo categorized_tag_cloud($instance) . $after_widget;
141	}
142
143	function update($new_instance, $old_instance)
144	{
145	$instance = $old_instance;
146
147	foreach ($this->options as $val) {
148	if ($val['type'] == 'text' \|\| $val['type'] == 'radio') {
149	$instance[$val['name']] = strip_tags($new_instance[$val['name']]);
150	} else if ($val['type'] == 'checkbox') {
151	$instance[$val['name']] = ($new_instance[$val['name']] == 'on') ? true : false;
152	}
153
154	// CATEGORY FILTERS
155	$instance['category_filters'] = '';
156
157	if (isset($_POST['categorized-tag-cloud-num-filters']) && is_numeric($_POST['categorized-tag-cloud-num-filters'])) {
158	$instance['category_filters'] = [];
159	for ($i = 0; $i < $_POST['categorized-tag-cloud-num-filters']; $i++) {
160	if ($_POST['categorized-tag-cloud-cat-' . $i] == '' && $_POST['categorized-tag-cloud-tag-' . $i] == '') {
161	continue;
162	}
163	$instance['category_filters']['cat'][] = esc_html($_POST['categorized-tag-cloud-cat-' . $i]);
164	$instance['category_filters']['tag'][] = esc_html($_POST['categorized-tag-cloud-tag-' . $i]);
165	}
166	$instance['category_filters'] = json_encode($instance['category_filters']);
167	}
168	}
169
170	return $instance;
171	}
172
173	function form($instance)
174	{
175	if (empty($instance)) {
176	$instance['title'] = 'Categorized Tag Cloud';
177	$instance['words_number'] = 20;
178	$instance['words_color'] = '';
179	$instance['smallest_font'] = '7';
180	$instance['largest_font'] = '14';
181	$instance['horizontal_spread'] = '60';
182	$instance['vertical_spread'] = '60';
183	$instance['order'] = '';
184	}
185
186	foreach ($this->options as $val) {
187	if ($val['type'] == 'separator') {
188	if (isset($val['label']) && $val['label'] != '') {
189	echo '<h3>' . __($val['label'], 'categorized-tag-cloud') . '</h3>';
190	} else {
191	echo '<hr />';
192	}
193	if (isset($val['notes']) && $val['notes'] != '') {
194	echo '<div class="description">' . $val['notes'] . '</div>';
195	}
196	} else if ($val['type'] == 'category_filters') {
197	$category_filters = (array) json_decode($instance['category_filters']);
198	if (!is_array($category_filters)) {
199	$category_filters = [];
200	}
201	if (!isset($category_filters['cat']) \|\| !is_array($category_filters['cat'])) {
202	$category_filters['cat'] = [];
203	}
204	echo '<input name="categorized-tag-cloud-num-filters" type="hidden" value="' . (count($category_filters) + 2) . '" />';
205	echo '<table>
206	<tr>
207	<th>' . __('category slug', 'categorized-tag-cloud') . '</th>
208	<th style="min-width:300px">' . __('excluded tags id, comma separated', 'categorized-tag-cloud') . '</th>
209	</tr>';
210	for ($i = 0; $i < count($category_filters['cat']); $i++) {
211	echo '
212	<tr>
213	<td><input type="text" name="categorized-tag-cloud-cat-' . $i . '" value="' . $category_filters['cat'][$i] . '" /></td>
214	<td><input type="text" name="categorized-tag-cloud-tag-' . $i . '" value="' . $category_filters['tag'][$i] . '" style="min-width:300px" /></td></tr>';
215	}
216	for ($j = $i; $j < ($i + 2); $j++) {
217	echo '
218	<tr>
219	<td><input type="text" name="categorized-tag-cloud-cat-' . $j . '" /></td>
220	<td><input type="text" name="categorized-tag-cloud-tag-' . $j . '" style="min-width:300px" /></td></tr>';
221	}
222	echo '</table>';
223	} else if ($val['type'] == 'donate') {
224	echo '<p style="text-align:center; font-weight:bold;">
225	' . __('Do you like it? I\'m supporting it, please support me!', 'categorized-tag-cloud') . '<br />
226	<a href="https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=giu%40formikaio%2eit&item_name=WhileTrue&currency_code=EUR&bn=PP%2dDonationsBF%3abtn_donate_LG%2egif%3aNonHosted" target="_blank">
227	<img alt="PayPal - The safer, easier way to pay online!" src="https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gif" >
228	</a>
229	</p>';
230	} else if ($val['type'] == 'text') {
231	echo '<p>
232	<label for="' . $this->get_field_id($val['name']) . '">' . __($val['label'], 'categorized-tag-cloud') . '</label>
233	';
234	echo '<input class="widefat" id="' . $this->get_field_id($val['name']) . '" name="' . $this->get_field_name($val['name']) . '" type="text" value="' . esc_attr($instance[$val['name']]) . '" />';
235	echo '</p>';
236	} else if ($val['type'] == 'radio') {
237	echo '<p>
238	<label for="' . $this->get_field_id($val['name']) . '">' . __($val['label'], 'categorized-tag-cloud') . '</label>
239	';
240	foreach ($val['values'] as $k => $v) {
241	$checked = ($instance[$val['name']] == $k) ? 'checked="checked"' : '';
242	echo '   <input id="' . $this->get_field_id($val['name']) . '" name="' . $this->get_field_name($val['name']) . '" value="' . $k . '" type="radio" ' . $checked . ' /> ' . $v . '   ';
243	}
244	echo '</p>';
245	} else if ($val['type'] == 'checkbox') {
246	echo '<p>
247	<label for="' . $this->get_field_id($val['name']) . '">' . __($val['label'], 'categorized-tag-cloud') . '</label>
248	';
249	$checked = ($instance[$val['name']]) ? 'checked="checked"' : '';
250	echo '<input id="' . $this->get_field_id($val['name']) . '" name="' . $this->get_field_name($val['name']) . '" type="checkbox" ' . $checked . ' />';
251	echo '</p>';
252	}
253	}
254	}
255	} // class CategorizedTagCloudWidget
256
257	// register CategorizedTagCloudWidget widget
258	add_action('widgets_init', function () {
259	return register_widget("CategorizedTagCloudWidget");
260	});
261