add-code-to-head / add-code-to-head.php

add-code-to-head.php in Add Code To Head 1.13, at add-code-to-head.php

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1	<?php
2	/*
3	* Plugin Name: Add Code to Head
4	* Plugin URI: http://hbjitney.com/add-code-to-header.html
5	* Description: Adds custom html code (javascript, css, etc.) to each public page's head
6	* Version: 1.09
7	* Author: HBJitney, LLC
8	* Author URI: http://hbjitney.com/
9	* License: GPL3
10
11	This program is free software: you can redistribute it and/or modify
12	it under the terms of the GNU General Public License as published by
13	the Free Software Foundation, either version 3 of the License, or
14	(at your option) any later version.
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	You should have received a copy of the GNU General Public License
22	along with this program. If not, see <http://www.gnu.org/licenses/>.
23	*/
24
25	if ( !class_exists('AddCodeToHead' ) ) {
26	/**
27	* Wrapper class to isolate us from the global space in order
28	* to prevent method collision
29	*/
30	class AddCodeToHead {
31	/**
32	* Set up all actions, instantiate other
33	*/
34	function __construct() {
35	add_action( 'admin_menu', array( $this, 'add_admin' ) );
36	add_action( 'admin_init', array( $this, 'admin_init' ) );
37	add_action( 'wp_head', array( $this, 'display' ) );
38	}
39
40	/**
41	* Add our options to the settings menu
42	*/
43	function add_admin() {
44	add_options_page('Add Code to Head', 'Add Code to Head', 'manage_options', 'acth_plugin', array( $this, 'plugin_options_page' ) );
45	}
46
47	/**
48	* Callback for options page - set up page title and instantiate fields
49	*/
50	function plugin_options_page() {
51	?>
52	<div class="plugin-options">
53	<h2><span>Add Code to Head</span></h2>
54	<form action="options.php" method="post">
55	<?php
56	settings_fields( 'acth_options' );
57	do_settings_sections( 'acth_plugin' );
58	?>
59
60	<input name="Submit" type="submit" value="<?php esc_attr_e( 'Save Changes' ); ?>" />
61	</form>
62	</div>
63	<?php
64	}
65
66	/*
67	* Define options section (only one) and fields (also only one!)
68	*/
69	function admin_init() {
70	register_setting( 'acth_options', 'acth_options', array( $this, 'options_validate' ) );
71	add_settings_section( 'acth_section', '', array( $this, 'main_section' ), 'acth_plugin' );
72	add_settings_field( 'acth_string', 'Code', array( $this, 'text_field'), 'acth_plugin', 'acth_section');
73	}
74
75	/*
76	* Static content for options section
77	*/
78	function main_section() {
79	// GNDN
80	}
81
82	/*
83	* Code for field
84	*/
85	function text_field() {
86	$options = get_option( 'acth_options' );
87	?>
88	<textarea id="acth_options" name="acth_options[text_string]" rows="20" cols="90"><?php _e( $options['text_string'] );?></textarea>
89	<?php
90	}
91
92	/*
93	* No validation, just remove leading and trailing spaces
94	*/
95	function options_validate($input) {
96	$newinput['text_string'] = trim( $input['text_string'] );
97	return $newinput;
98	}
99
100	/*
101	* Display the code(s) on the public page.
102	* We do an extra check to ensure that the codes don't show up
103	* in the admin tool.
104	*/
105	function display() {
106	if( !is_admin() ) {
107	$options = get_option( 'acth_options' );
108	_e( $options['text_string'] );
109	}
110	}
111	}
112	}
113
114	/*
115	* Sanity - was there a problem setting up the class? If so, bail with error
116	* Otherwise, class is now defined; create a new one it to get the ball rolling.
117	*/
118	if( class_exists( 'AddCodeToHead' ) ) {
119	new AddCodeToHead();
120	} else {
121	$message = "<h2 style='color:red'>Error in plugin</h2>
122	<p>Sorry about that! Plugin <span style='color:blue;font-family:monospace'>add-code-to-head</span> reports that it was unable to start.</p>
123	<p><a href='mailto:support@hbjitney.com?subject=Add-code-to-head%20error&body=What version of Wordpress are you running? Please paste a list of your current active plugins here:'>Please report this error</a>.
124	Meanwhile, here are some things you can try:</p>
125	<ul><li>Make sure you are running the latest version of the plugin; update the plugin if not.</li>
126	<li>There might be a conflict with other plugins. You can try disabling every other plugin; if the problem goes away, there is a conflict.</li>
127	<li>Try a different theme to see if there's a conflict between the theme and the plugin.</li>
128	</ul>";
129	wp_die( $message );
130	}
131	?>
132