Once plugin is activated, go to Presentation >> Theme Preview to use.
Version: 2.1.0
Author: Bitbybit
Author URI: http://bitbybit.wordpress.com
Installation Instructions: Save this file into a new file called "admin-theme-preview.php" and place it in your wp-content/plugins/ directory. Activate the plugin in the wordpress Plugins page, then navigate to "Presentation -> Theme Preview" to preview your themes.
Upgrade Instructions: Overwrite old version with new version :P
Lineage: Basically just a slightly re-worked/combined version of Ryan Boren's (http://boren.nu/) Theme Preview plugin and Theme Switcher plugin (which was in turn adapted from Alex King's (http://www.alexking.org/) Style Switcher plugin). They did all the work, I just put a wrapper on the thing :P
*/
/* Code follows */
// Start things off by setting cookie
ts_set_theme_cookie();
/* Functions */
function levelcheck() {
if (current_user_can('switch_themes') || current_user_can('edit_themes')) {
return('yay');
} else {
return('nay');
}
//die('
Error: You do not have the required permissions to preview themes
');
}
function ts_set_theme_cookie() {
$expire = time() + 31536000;
if (!empty($_GET["wpadmintheme"])) {
setcookie("wpadmintheme" . COOKIEHASH, stripslashes($_GET["wpadmintheme"]), $expire, COOKIEPATH);
$redirect = get_settings('home').'/';
if (function_exists('wp_redirect')) {
// Fix this at some point
// wp_redirect($redirect);
header("Refresh: 0;url=$redirect");
} else {
header("Refresh: 0;url=$redirect");
}
}
}
function ts_get_theme() {
if (!empty($_COOKIE["wpadmintheme" . COOKIEHASH])) {
return $_COOKIE["wpadmintheme" . COOKIEHASH];
} else {
return '';
}
}
function ts_get_template($template) {
$theme = ts_get_theme();
if (empty($theme)) {
return $template;
}
$theme = get_theme($theme);
if (empty($theme)) {
return $template;
}
// Don't let people peek at unpublished themes.
if (isset($theme['Status']) && $theme['Status'] != 'publish')
return $template;
return $theme['Template'];
}
function ts_get_stylesheet($stylesheet) {
$theme = ts_get_theme();
if (empty($theme)) {
return $stylesheet;
}
$theme = get_theme($theme);
// Don't let people peek at unpublished themes.
if (isset($theme['Status']) && $theme['Status'] != 'publish')
return $template;
if (empty($theme)) {
return $stylesheet;
}
return $theme['Stylesheet'];
}
function wp_admin_preview($style = "text") {
if ( levelcheck() == "nay" ) die('
Error: You do not have the required permissions to preview themes
';
}
echo $ts;
}
// Add options menu for this plugin
function admin_theme_preview() {
if (function_exists('add_submenu_page')) {
add_submenu_page('themes.php', 'Admin Theme Preview', 'Theme Preview', 9, 'admin-theme-preview.php', 'admin_options_page');
}
}
// Populate options menu
function admin_options_page() {
if (isset($_POST['info_update'])) { ?>
Theme Selected
Admin Theme Preview
";
wp_admin_preview();
} else {
echo "
Error! The Admin Theme Preview plugin is not currently activated or installed. Please make sure the plugin is installed and activated in your Plugin Management page before proceeding.
";
}
echo "
";
}
// Add theme preview toolbar to top of active page if valid user
function atp_footer() {
if ( levelcheck() == "yay" ) {
echo <<
END;
wp_admin_preview('dropdown');
echo <<
END;
}
}
add_action('admin_menu', 'admin_theme_preview');
add_filter('template', 'ts_get_template');
add_filter('stylesheet', 'ts_get_stylesheet');
add_filter('wp_footer', 'atp_footer');
?>