WordPressplugin development

(with pictures)

Simon Wheatleywww.simonwheatley.co.uk

WordPressplugin development

(with pictures)

Simon Wheatleywww.simonwheatley.co.uk

plugins

photo by djking

anatomy of a plugin file?

photo by striatic

<?php

/*Plugin Name: Flickr InsertPlugin URI: http://www.simonwheatley.co.uk/wordpress/Version: 1.0Description: Allows you to embed Flickr photos and photosets.Author: Simon WheatleyAuthor URI: http://www.simonwheatley.co.uk/

Copyright 2007 Simon Wheatley

(any licensing legal gubbins.)*/

?>

<?php

/*Plugin Name: Flickr Insert*/

?>

actions

photo from Davidson College

filters

photo by BlueskyPol

actions

function bi_insert_bg_css() {$img_id = bi_get_bg_img_id();$img_path = bi_img_path( $img_id );

$css = "<style type='text/css'>\n";$css .= "body {\n";$css .= "background-image: url($img_path)\n”";$css .= "}\n";$css .= "</style>\n";

echo $css;}

add_action('wp_head', 'bi_insert_bg_css');

function names

photo by birdyboo

function bi_insert_bg_css() {$img_id = bi_get_bg_img_id();$img_path = bi_img_path( $img_id );

$css = "<style type='text/css'>\n";$css .= "body {\n";$css .= "background-image: url($img_path)\n”";$css .= "}\n";$css .= "</style>\n";

echo $css;}

add_action('wp_head', 'bi_insert_bg_css');

function bi_insert_bg_css() {$img_id = bi_get_bg_img_id();$img_path = bi_img_path( $img_id );

$css = "<style type='text/css'>\n";$css .= "body {\n";$css .= "background-image: url($img_path)\n”";$css .= "}\n";$css .= "</style>\n";

echo $css;}

add_action('wp_head', 'bi_insert_bg_css');

filters

function ep_exclude_pages( $pages ){$excluded_ids = ep_get_excluded_ids();$length = count( $pages );for ( $i=0; $i<$length; $i++ ) { $page = & $pages[$i]; if ( in_array( $page->ID, $excluded_ids ) ) { unset( $pages[$i] ); }}// Reindex the array, for neatness$pages = array_values( $pages );return $pages;}

add_filter('get_pages','ep_exclude_pages');

function ep_exclude_pages( $pages ){$excluded_ids = ep_get_excluded_ids();$length = count( $pages );for ( $i=0; $i<$length; $i++ ) { $page = & $pages[$i]; if ( in_array( $page->ID, $excluded_ids ) ) { unset( $pages[$i] ); }}// Reindex the array, for neatness$pages = array_values( $pages );return $pages;}

add_filter('get_pages','ep_exclude_pages');

function ep_exclude_pages( $pages ){$excluded_ids = ep_get_excluded_ids();$length = count( $pages );for ( $i=0; $i<$length; $i++ ) { $page = & $pages[$i]; if ( in_array( $page->ID, $excluded_ids ) ) { unset( $pages[$i] ); }}// Reindex the array, for neatness$pages = array_values( $pages );return $pages;}

add_filter('get_pages','ep_exclude_pages');

actions

filters

the editor

photo by thetourise

adding TinyMCE buttons

photo by Thomas Hawk

define( 'FI_WEB_PATH', '/wp-content/plugins/flickr-insert' );

function fi_mce_external_plugins( $plugins ) {$plugins['flickr'] = get_bloginfo('wpurl') . FI_WEB_PATH . '/tinymce/editor_plugin.js';return $plugins;}function fi_addbuttons() {if ( ! current_user_can('edit_posts') && !current_user_can('edit_pages') ) return;if ( ! get_user_option('rich_editing') ) return;add_filter( 'mce_external_plugins', 'fi_mce_external_plugins' );}

add_action('init', 'fi_addbuttons' );

define( 'FI_WEB_PATH', '/wp-content/plugins/flickr-insert' );

function fi_mce_external_plugins( $plugins ) {$plugins['flickr'] = get_bloginfo('wpurl') . FI_WEB_PATH . '/tinymce/editor_plugin.js';return $plugins;}function fi_addbuttons() {if ( ! current_user_can('edit_posts') && !current_user_can('edit_pages') ) return;if ( ! get_user_option('rich_editing') ) return;add_filter( 'mce_external_plugins', 'fi_mce_external_plugins' );}

add_action('init', 'fi_addbuttons' );

define( 'FI_WEB_PATH', '/wp-content/plugins/flickr-insert' );

function fi_mce_external_plugins( $plugins ) {$plugins['flickr'] = get_bloginfo('wpurl') . FI_WEB_PATH . '/tinymce/editor_plugin.js';return $plugins;}function fi_addbuttons() {if ( ! current_user_can('edit_posts') && !current_user_can('edit_pages') ) return;if ( ! get_user_option('rich_editing') ) return;add_filter( 'mce_external_plugins', 'fi_mce_external_plugins' );}

add_action('init', 'fi_addbuttons' );

define( 'FI_WEB_PATH', '/wp-content/plugins/flickr-insert' );

function fi_mce_external_plugins( $plugins ) {$plugins['flickr'] = get_bloginfo('wpurl') . FI_WEB_PATH . '/tinymce/editor_plugin.js';return $plugins;}function fi_addbuttons() {if ( ! current_user_can('edit_posts') && !current_user_can('edit_pages') ) return;if ( ! get_user_option('rich_editing') ) return;add_filter( 'mce_external_plugins', 'fi_mce_external_plugins' );}

add_action('init', 'fi_addbuttons' );

(function() { tinymce.PluginManager.requireLangPack('flickr');tinymce.create('tinymce.plugins.FlickrInsert', {init : function(ed, url) {ed.addButton('flickr', { title : 'flickr.desc', cmd : 'mceFlickr', image : url + '/img/flickr.gif' });ed.onNodeChange.add(function(ed, cm, n) {cm.setActive('flickr', n.nodeName == 'IMG');});}

tinymce.PluginManager.add('flickr', tinymce.plugins.FlickrInsert);})();

(function() { tinymce.PluginManager.requireLangPack('flickr');tinymce.create('tinymce.plugins.FlickrInsert', {init : function(ed, url) {ed.addButton('flickr', { title : 'flickr.desc', cmd : 'mceFlickr', image : url + '/img/flickr.gif' });ed.onNodeChange.add(function(ed, cm, n) {cm.setActive('flickr', n.nodeName == 'IMG');});}

tinymce.PluginManager.add('flickr', tinymce.plugins.FlickrInsert);})();

(function() { tinymce.PluginManager.requireLangPack('flickr');tinymce.create('tinymce.plugins.FlickrInsert', {init : function(ed, url) {ed.addButton('flickr', { title : 'flickr.desc', cmd : 'mceFlickr', image : url + '/img/flickr.gif' });ed.onNodeChange.add(function(ed, cm, n) {cm.setActive('flickr', n.nodeName == 'IMG');});}

tinymce.PluginManager.add('flickr', tinymce.plugins.FlickrInsert);})();

(function() { tinymce.PluginManager.requireLangPack('flickr');tinymce.create('tinymce.plugins.FlickrInsert', {init : function(ed, url) {ed.addButton('flickr', { title : 'flickr.desc', cmd : 'mceFlickr', image : url + '/img/flickr.gif' });ed.onNodeChange.add(function(ed, cm, n) {cm.setActive('flickr', n.nodeName == 'IMG');});}

tinymce.PluginManager.add('flickr', tinymce.plugins.FlickrInsert);})();

(function() { tinymce.PluginManager.requireLangPack('flickr');tinymce.create('tinymce.plugins.FlickrInsert', {init : function(ed, url) {ed.addButton('flickr', { title : 'flickr.desc', cmd : 'mceFlickr', image : url + '/img/flickr.gif' });ed.onNodeChange.add(function(ed, cm, n) {cm.setActive('flickr', n.nodeName == 'IMG');});}

tinymce.PluginManager.add('flickr', tinymce.plugins.FlickrInsert);})();

popup dialog

photo by Kiff ta race / undercensure

(function() { tinymce.PluginManager.requireLangPack('flickr');tinymce.create('tinymce.plugins.FlickrInsert', {init : function(ed, url) {ed.addButton('flickr', { title : 'flickr.desc', cmd : 'mceFlickr', image : url + '/img/flickr.gif' });ed.onNodeChange.add(function(ed, cm, n) {cm.setActive('flickr', n.nodeName == 'IMG');});}

tinymce.PluginManager.add('flickr', tinymce.plugins.FlickrInsert);})();

ed.addCommand('mceFlickr', function() { ed.windowManager.open({ file : url + '/../../../../wp-admin/?fi_dialog=1', width : 640 + parseInt(ed.getLang('flickr.delta_width', 0)), height : 430 + parseInt(ed.getLang('flickr.delta_height', 0)), inline : 1}, { plugin_url : url });});

(function() { tinymce.PluginManager.requireLangPack('flickr');tinymce.create('tinymce.plugins.FlickrInsert', {init : function(ed, url) {ed.addCommand('mceFlickr', function() { ed.windowManager.open({ file : url + '/../../../../wp-admin/?fi_dialog=1', width : 640 + parseInt(ed.getLang('flickr.delta_width', 0)), height : 430 + parseInt(ed.getLang('flickr.delta_height', 0)), inline : 1}, { plugin_url : url });});}tinymce.PluginManager.add('flickr', tinymce.plugins.FlickrInsert);})();

forms

photo by source

function fi_photo_query() { $fi_photo = @ $_GET['fi_photo']; if ( ! $fi_photo ) return; $f = & fi_flickr(); $fi_photo_id = @ $_GET['fi_photo_id']; $photo = $f->photos_getInfo( $fi_photo_id ); $href = $f->buildPhotoURL($photo, "medium"); $src = $f->buildPhotoURL($photo, "small"); $alt = addslashes( $photo['title'] ); $data = array( 'href' => $href, 'src' => $src, 'alt' => $alt ); $json = new Moxiecode_JSON(); echo $json->encode( $data ); exit;}

// Answer various AJAX queriesadd_action('init', 'fi_photo_query', -10 );

require_once( ABSPATH . "/wp-includes/js/tinymce/plugins/spellchecker/classes/utils/JSON.php" );

shortcodes

photo by thetourise

[flickr-photoset]http://flickr.com/photos/colonelkillgore/sets/72157594553989524/[/flickr-photoset]

// Parse the photoset shortcodefunction fi_shortcode( $atts, $content ) { $photoset_id = fi_photoset_id( $content ); $html = fi_photoset( $photoset_id ); return $html;}

// Register the Flickr shortcodeadd_shortcode('flickr-photoset', 'fi_shortcode');

// Parse the photoset shortcodefunction fi_shortcode( $atts, $content ) { $photoset_id = fi_photoset_id( $content ); $html = fi_photoset( $photoset_id ); return $html;}

// Register the Flickr shortcodeadd_shortcode('flickr-photoset', 'fi_shortcode');

// Parse the photoset shortcodefunction fi_shortcode( $atts, $content ) { $photoset_id = fi_photoset_id( $content ); $html = fi_photoset( $photoset_id ); return $html;}

// Register the Flickr shortcodeadd_shortcode('flickr-photoset', 'fi_shortcode');

javascripts

photo by Don Solo

define( 'FI_WEB_PATH', '/wp-content/plugins/flickr-insert' );

function fi_js(){$site_url = get_option( 'siteurl' );$lightbox_script = $site_url . FI_WEB_PATH . '/jquery.lightbox-0.5.pack.js';

wp_enqueue_script( 'jquery-lightbox', $lightbox_script, array('jquery'), '0.5' );}

add_action('wp_head', 'sd_js', 5);

define( 'FI_WEB_PATH', '/wp-content/plugins/flickr-insert' );

function fi_js(){$site_url = get_option( 'siteurl' );$lightbox_script = $site_url . FI_WEB_PATH . '/jquery.lightbox-0.5.pack.js';

wp_enqueue_script( 'jquery-lightbox', $lightbox_script, array('jquery'), '0.5' );}

add_action('wp_head', 'sd_js', 5);

define( 'FI_WEB_PATH', '/wp-content/plugins/flickr-insert' );

function fi_js(){$site_url = get_option( 'siteurl' );$lightbox_script = $site_url . FI_WEB_PATH . '/jquery.lightbox-0.5.pack.js';

wp_enqueue_script( 'jquery-lightbox', $lightbox_script, array('jquery'), '0.5' );}

add_action('wp_head', 'sd_js', 5);

stylesheets

photo by kirainet

define( 'FI_WEB_PATH', '/wp-content/plugins/flickr-insert' );

function fi_css(){$site_url = get_option( 'siteurl' );$css = $site_url . FI_WEB_PATH . '/screen.css';

wp_enqueue_style( 'fi_screen', $css );}

add_action('wp_head', 'fi_js', 5);

define( 'FI_WEB_PATH', '/wp-content/plugins/flickr-insert' );

function fi_css(){$site_url = get_option( 'siteurl' );$css = $site_url . FI_WEB_PATH . '/screen.css';

wp_enqueue_style( 'fi_screen', $css );}

add_action('wp_head', 'fi_js', 5);

define( 'FI_WEB_PATH', '/wp-content/plugins/flickr-insert' );

function fi_css(){$site_url = get_option( 'siteurl' );$css = $site_url . FI_WEB_PATH . '/screen.css';

wp_enqueue_style( 'fi_screen', $css );}

add_action('wp_head', 'fi_js', 5);

photo by tantek

that was an WordPress

plugin development(with pictures)

Simon Wheatleywww.simonwheatley.co.uk