printfriendly / pf.php

pf.php in Print, PDF & Email by PrintFriendly 2.0, at pf.php

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1	<?php
2	/*
3	Plugin Name: Print Friendly & PDF
4	Plugin URI: http://www.printfriendly.com/button
5	Description: Adds a Print Friendly & PDF button for your pages. Help your users save paper and ink, and engage with your content. Developed by <a href="http://wordpresswrench.com?ref=printfriendly" target="_blank">WordPress Wrench</a>
6	Version: 2.0
7	Author: PrintFriendly
8	Author URI: http://www.PrintFriendly.com
9
10	Changelog :
11	2.0 - New Revision by WordPressWrench.com with a plethora of changes. You may now style your print button much easier.
12	1.5 - Added developer ability to disable hook and use the pf_show_link() function to better be used in a custom theme & Uninstall cleanup - by WordpressWrench.com
13	1.4 - Changed Name
14	1.3 - Added new buttons, removed redundant code.
15	1.2 - User can choose to show or not show buttons on the listing page.
16
17	*/
18
19
20
21	////////////////////////////// Wordpress hooks
22
23	// add the settings page
24	add_action('admin_menu', 'pf_menu');
25	function pf_menu() {
26	add_options_page('PrintFriendly Options', 'PrintFriendly', 'publish_posts', 'printfriendly', 'pf_options');
27	}
28
29	// add the settings link to the plugin page
30
31	function pf_settings_link($links) {
32	$settings_link = '<a href="options-general.php?page=printfriendly">Settings</a>';
33	array_unshift($links, $settings_link);
34	return $links;
35	}
36
37	// add css, js, and check for updates
38	if (isset($_GET['page']) && $_GET['page'] == 'printfriendly') {
39	add_action('admin_print_scripts', 'pf_admin_scripts');
40	add_action('admin_print_styles', 'pf_admin_styles');
41	add_action('admin_head', 'pf_css_in_admin_head');
42	if(get_option('pf_text_color')==null){
43	//old install or something is fishy! lets run the install!
44	printfriendly_activation_handler();
45	}
46	}
47
48	$pf_pluginbase = plugin_basename(__FILE__);
49	add_filter('plugin_action_links_'.$pf_pluginbase, 'pf_settings_link');
50
51	// automaticaly add the link
52	add_action('the_content', 'pf_show_link');
53
54	// lets start our mess!
55	function printfriendly_activation_handler(){
56	update_option('pf_margin_top',0);
57	update_option('pf_margin_right',0);
58	update_option('pf_margin_bottom',0);
59	update_option('pf_margin_left',0);
60
61
62	update_option('pf_text_color','#55750C');
63	update_option('pf_text_size','12');
64	if(get_option('pf_show_list')==0){
65	update_option('pf_show_list','all');
66	}elseif(get_option('pf_show_list')==1){
67	update_option('pf_show_list','single');
68	}
69	if(get_option('pf_disable_prepend')==1){
70	update_option('pf_show_list','manual');
71	}
72	delete_option('pf_disable_prepend');
73	}
74
75	// lets clean our mess when we are done and properly
76	function printfriendly_deactivation_handler(){
77	delete_option('pf_button_type');
78	delete_option('pf_custom_text');
79
80	delete_option('pf_custom_image');
81
82	delete_option('pf_show_list');
83	delete_option('pf_content_placement');
84	delete_option('pf_content_position');
85
86	delete_option('pf_margin_top');
87	delete_option('pf_margin_right');
88	delete_option('pf_margin_bottom');
89	delete_option('pf_margin_left');
90	}
91	register_activation_hook(__FILE__, 'printfriendly_activation_handler');
92	register_uninstall_hook(__FILE__, 'printfriendly_deactivation_handler');
93
94	// add CSS into admin panel
95	function pf_css_in_admin_head() {
96	$url = plugins_url().'/'.str_replace(basename( __FILE__),"",plugin_basename(__FILE__)).'/admin.css';
97	echo "<link rel='stylesheet' type='text/css' href='$url' />\n";
98	}
99
100	////////////////////////////// Admin Settings
101
102	function pf_options(){
103	include_once('pf_admin.php');
104	}
105
106	// setup for uploads
107	function pf_admin_scripts() {
108	wp_enqueue_script('media-upload');
109	wp_enqueue_script('thickbox');
110	wp_register_script('pf-color-picker', plugins_url().'/'.str_replace(basename( __FILE__),"",plugin_basename(__FILE__)).'/colorpicker.js', array('jquery','media-upload','thickbox'));
111	wp_register_script('pf-admin-js', plugins_url().'/'.str_replace(basename( __FILE__),"",plugin_basename(__FILE__)).'/admin.js', array('jquery','media-upload','thickbox'));
112	wp_enqueue_script('pf-color-picker');
113	wp_enqueue_script('pf-admin-js');
114	}
115	function pf_admin_styles() {
116	wp_enqueue_style('thickbox');
117	}
118
119	////////////////////////////// Where all the magic happens
120
121	// add js into the head
122	function pf_js(){
123	return '<script src="http://cdn.printfriendly.com/printfriendly.js" type="text/javascript"></script>';
124	}
125
126	function pf_radio($name){
127	$var = '<input name="pf_button_type" type="radio" value="'.$name.'"'; if($name=="pf-button-big.gif"){$var .= ' class="bigger"';} if( get_option('pf_button_type') == $name \|\| ($name=="pf-button.gif" && get_option('pf_button_type')==null) ){$var .= ' checked="checked"'; } $var .= '/>';
128	return $var.pf_button($name);
129	}
130
131	function pf_button($name=false){
132	if($name==false){
133	$name = get_option('pf_button_type');
134	//null
135	if($name==null){
136	$name='pf-button.gif';
137	}
138	}
139	$text = get_option('pf_custom_text');
140	if( $text == null){
141	$text = 'Print Friendly';
142	}
143	switch($name){
144	case "custom-image":
145	$custom_image = get_option('pf_custom_image');
146	if($custom_image==null){
147	return '';
148	}
149	$return = '<img class="printfriendly" src="'.$custom_image.'" />';
150	if( get_option('pf_custom_text') != null){
151	$return .='<span class="printfriendly" style="font-size:'.get_option('pf_text_size').'px; margin-left:3px; color: '.get_option('pf_text_color').';">'.$text.'</span>';
152	}
153	return $return;
154	break;
155
156	case "text-only":
157	return '<span class="printfriendly" style="font-size: '.get_option('pf_text_size').'px; margin-left:3px; color: '.get_option('pf_text_color').';">'.$text.'</span>';
158	break;
159
160	case "pf-icon-both.gif":
161	return '<img class="printfriendly" style="border:none; padding:0;" src="http://cdn.printfriendly.com/pf-print-icon.gif" alt="Print Friendly"/><span class="printandpdf" style="font-size:'.get_option('pf_text_size').'; margin-left:3px; color:'.get_option('pf_text_color').';"> Print <img src="http://cdn.printfriendly.com/pf-pdf-icon.gif" alt="Get a PDF version of this webpage" /> PDF </span>';
162	break;
163
164	case "pf-icon-small.gif":
165	case "pf-icon.gif":
166	$size = get_option('pf_text_size');
167	if($name=="pf-icon.gif" && $size==12){
168	$size= 'font-size:'.($size+3).'px; ';
169	}else{
170	$size ='font-size:'.$size.'px; ';
171	}
172	return '<img class="printfriendly" src="http://cdn.printfriendly.com/'.$name.'" alt="Print Friendly"/><span style="'.$size.'margin-left:3px; color: '.get_option('pf_text_color').';">'.$text.'</span>';
173	break;
174
175	case "pf-button.gif":
176	case "pf-button-big.gif":
177	case "pf-button-both.gif":
178	return '<img class="printfriendly" src="http://cdn.printfriendly.com/'.$name.'" alt="PrintFriendly" />';
179	break;
180	}
181	}
182
183	function pf_margin_down($dir){
184	$margin = get_option('pf_margin_'.$dir);
185	if($margin == null){
186	return '0';
187	}else{
188	return $margin;
189	}
190	}
191
192	// add button
193	function pf_show_link($content=false){
194	$pf_display = get_option('pf_show_list');
195	if( ($pf_display=='all' \|\| $pf_display == null) \|\| ($pf_display=='single' && (is_single() \|\| is_page()) ) \|\| ($pf_display=='manual' && $content==false) ){
196	if($content==false){$content = '';}
197	// now lets get options setup before we start ouputting data
198	$style=' style="text-align:';
199	// position
200	$pos = get_option('pf_content_position');
201	if($pos==null){$pos='left';}
202	$style.=$pos.';';
203
204	//margin
205	$style.=' margin: '.pf_margin_down('top').'px '.pf_margin_down('right').'px '.pf_margin_down('bottom').'px '.pf_margin_down('left').'px;';
206
207	$style.='" ';
208
209	if(is_single() \|\| is_page()){
210	$add = pf_js();
211	}else{
212	$add = '';
213	}
214	$post_url = get_permalink();
215	$separator = "?pfstyle=wp";
216	if (strpos($post_url,"?")!=false){
217	$separator = "&pfstyle=wp";
218	}
219	$plink_url = $post_url . $separator;
220	$button = '<div'.$style.'class="pfButton">'.$add.'<a href="'.$plink_url.'">'.pf_button().'</a></div>';
221	if(get_option('pf_content_placement')==null){
222	return $content.$button;
223	}else{
224	return $button.$content;
225	}
226	}else{
227	return $content;
228	}
229	}