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custom-css.php
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1858 lines (1509 loc) · 58.8 KB
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<?php
class Jetpack_Custom_CSS {
static function init() {
add_action( 'switch_theme', array( __CLASS__, 'reset' ) );
add_action( 'wp_restore_post_revision', array( __CLASS__, 'restore_revision' ), 10, 2 );
// Save revisions for posts of type safecss.
add_action( 'load-revision.php', array( __CLASS__, 'add_revision_redirect' ) );
// Override the edit link, the default link causes a redirect loop
add_filter( 'get_edit_post_link', array( __CLASS__, 'revision_post_link' ), 10, 3 );
// Overwrite the content width global variable if one is set in the custom css
add_action( 'template_redirect', array( __CLASS__, 'set_content_width' ) );
add_action( 'admin_init', array( __CLASS__, 'set_content_width' ) );
if ( ! is_admin() )
add_filter( 'stylesheet_uri', array( __CLASS__, 'style_filter' ) );
define(
'SAFECSS_USE_ACE',
! jetpack_is_mobile() &&
! Jetpack_User_Agent_Info::is_ipad() &&
/**
* Should the Custom CSS module use ACE to process CSS.
* @see http://ace.c9.io/
*
* @module custom-css
*
* @since 1.7.0
*
* @param bool true Use ACE to process the Custom CSS. Default to true.
*/
apply_filters( 'safecss_use_ace', true )
);
// Register safecss as a custom post_type
// Explicit capability definitions are largely unnecessary because the posts are manipulated in code via an options page, managing CSS revisions does check the capabilities, so let's ensure that the proper caps are checked.
register_post_type( 'safecss', array(
// These are the defaults
// 'exclude_from_search' => true,
// 'public' => false,
// 'publicly_queryable' => false,
// 'show_ui' => false,
'supports' => array( 'revisions' ),
'label' => 'Custom CSS',
'can_export' => false,
'rewrite' => false,
'capabilities' => array(
'edit_post' => 'edit_theme_options',
'read_post' => 'read',
'delete_post' => 'edit_theme_options',
'edit_posts' => 'edit_theme_options',
'edit_others_posts' => 'edit_theme_options',
'publish_posts' => 'edit_theme_options',
'read_private_posts' => 'read'
)
) );
// Short-circuit WP if this is a CSS stylesheet request
if ( isset( $_GET['custom-css'] ) ) {
header( 'Content-Type: text/css', true, 200 );
header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', time() + 31536000) . ' GMT' ); // 1 year
Jetpack_Custom_CSS::print_css();
exit;
}
add_action( 'admin_enqueue_scripts', array( 'Jetpack_Custom_CSS', 'enqueue_scripts' ) );
if ( isset( $_GET['page'] ) && 'editcss' == $_GET['page'] && is_admin() ) {
// Do migration routine if necessary
Jetpack_Custom_CSS::upgrade();
/**
* Allows additional work when migrating safecss from wp_options to wp_post.
*
* @module custom-css
*
* @since 1.7.0
*/
do_action( 'safecss_migrate_post' );
}
/**
* Never embed the style in the head on wpcom.
* Yes, this filter should be added to an unsynced file on wpcom, but
* there is no good syntactically-correct location to put it yet.
* @link https://github.com/Automattic/jetpack/commit/a1be114e9179f64d147124727a58e2cf76c7e5a1#commitcomment-7763921
*/
if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
add_filter( 'safecss_embed_style', '__return_false' );
} else {
add_filter( 'safecss_embed_style', array( 'Jetpack_Custom_CSS', 'should_we_inline_custom_css' ), 10, 2 );
}
add_action( 'wp_head', array( 'Jetpack_Custom_CSS', 'link_tag' ), 101 );
add_filter( 'jetpack_content_width', array( 'Jetpack_Custom_CSS', 'jetpack_content_width' ) );
add_filter( 'editor_max_image_size', array( 'Jetpack_Custom_CSS', 'editor_max_image_size' ), 10, 3 );
if ( !current_user_can( 'switch_themes' ) && !is_super_admin() )
return;
add_action( 'admin_menu', array( 'Jetpack_Custom_CSS', 'menu' ) );
if ( isset( $_POST['safecss'] ) && false == strstr( $_SERVER[ 'REQUEST_URI' ], 'options.php' ) ) {
check_admin_referer( 'safecss' );
$save_result = self::save( array(
'css' => stripslashes( $_POST['safecss'] ),
'is_preview' => isset( $_POST['action'] ) && $_POST['action'] == 'preview',
'preprocessor' => isset( $_POST['custom_css_preprocessor'] ) ? $_POST['custom_css_preprocessor'] : '',
'add_to_existing' => isset( $_POST['add_to_existing'] ) ? $_POST['add_to_existing'] == 'true' : true,
'content_width' => isset( $_POST['custom_content_width'] ) ? $_POST['custom_content_width'] : false,
) );
if ( $_POST['action'] == 'preview' ) {
wp_safe_redirect( add_query_arg( 'csspreview', 'true', get_option( 'home' ) ) );
exit;
}
if ( $save_result )
add_action( 'admin_notices', array( 'Jetpack_Custom_CSS', 'saved_message' ) );
}
// Prevent content filters running on CSS when restoring revisions
if ( isset( $_REQUEST[ 'action' ] ) && 'restore' === $_REQUEST[ 'action' ] && false !== strstr( $_SERVER[ 'REQUEST_URI' ], 'revision.php' ) ) {
$parent_post = get_post( wp_get_post_parent_id( intval( $_REQUEST[ 'revision' ] ) ) );
if ( $parent_post && ! is_wp_error( $parent_post ) && 'safecss' === $parent_post->post_type ) {
// Remove wp_filter_post_kses, this causes CSS escaping issues
remove_filter( 'content_save_pre', 'wp_filter_post_kses' );
remove_filter( 'content_filtered_save_pre', 'wp_filter_post_kses' );
remove_all_filters( 'content_save_pre' );
}
}
// Modify all internal links so that preview state persists
if ( Jetpack_Custom_CSS::is_preview() )
ob_start( array( 'Jetpack_Custom_CSS', 'buffer' ) );
}
/**
* Save new custom CSS. This should be the entry point for any third-party code using Jetpack_Custom_CSS
* to save CSS.
*
* @param array $args Array of arguments:
* string $css The CSS (or LESS or Sass)
* bool $is_preview Whether this CSS is preview or published
* string preprocessor Which CSS preprocessor to use
* bool $add_to_existing Whether this CSS replaces the theme's CSS or supplements it.
* int $content_width A custom $content_width to go along with this CSS.
* @return int The post ID of the saved Custom CSS post.
*/
public static function save( $args = array() ) {
$defaults = array(
'css' => '',
'is_preview' => false,
'preprocessor' => '',
'add_to_existing' => true,
'content_width' => false,
);
$args = wp_parse_args( $args, $defaults );
if ( $args['content_width'] && intval( $args['content_width']) > 0 && ( ! isset( $GLOBALS['content_width'] ) || $args['content_width'] != $GLOBALS['content_width'] ) )
$args['content_width'] = intval( $args['content_width'] );
else
$args['content_width'] = false;
// Remove wp_filter_post_kses, this causes CSS escaping issues
remove_filter( 'content_save_pre', 'wp_filter_post_kses' );
remove_filter( 'content_filtered_save_pre', 'wp_filter_post_kses' );
remove_all_filters( 'content_save_pre' );
/**
* Fires prior to saving custom css values. Necessitated because the
* core WordPress save_pre filters were removed:
* - content_save_pre
* - content_filtered_save_pre
*
* @module custom-css
*
* @since 1.7.0
*
* @param array $args {
* Array of custom CSS arguments.
* @type string $css The CSS (or LESS or Sass).
* @type bool $is_preview Whether this CSS is preview or published.
* @type string preprocessor Which CSS preprocessor to use.
* @type bool $add_to_existing Whether this CSS replaces the theme's CSS or supplements it.
* @type int $content_width A custom $content_width to go along with this CSS.
* }
*/
do_action( 'safecss_save_pre', $args );
$warnings = array();
safecss_class();
$csstidy = new csstidy();
$csstidy->optimise = new safecss( $csstidy );
$csstidy->set_cfg( 'remove_bslash', false );
$csstidy->set_cfg( 'compress_colors', false );
$csstidy->set_cfg( 'compress_font-weight', false );
$csstidy->set_cfg( 'optimise_shorthands', 0 );
$csstidy->set_cfg( 'remove_last_;', false );
$csstidy->set_cfg( 'case_properties', false );
$csstidy->set_cfg( 'discard_invalid_properties', true );
$csstidy->set_cfg( 'css_level', 'CSS3.0' );
$csstidy->set_cfg( 'preserve_css', true );
$csstidy->set_cfg( 'template', dirname( __FILE__ ) . '/csstidy/wordpress-standard.tpl' );
$css = $orig = $args['css'];
$css = preg_replace( '/\\\\([0-9a-fA-F]{4})/', '\\\\\\\\$1', $prev = $css );
if ( $css != $prev )
$warnings[] = 'preg_replace found stuff';
// Some people put weird stuff in their CSS, KSES tends to be greedy
$css = str_replace( '<=', '<=', $css );
// Why KSES instead of strip_tags? Who knows?
$css = wp_kses_split( $prev = $css, array(), array() );
$css = str_replace( '>', '>', $css ); // kses replaces lone '>' with >
// Why both KSES and strip_tags? Because we just added some '>'.
$css = strip_tags( $css );
if ( $css != $prev )
$warnings[] = 'kses found stuff';
// if we're not using a preprocessor
if ( ! $args['preprocessor'] ) {
/**
* Fires before parsing the css with CSSTidy, but only if
* the preprocessor is not configured for use.
*
* @module custom-css
*
* @since 1.7.0
*
* @param obj $csstidy The csstidy object.
* @param string $css Custom CSS.
* @param array $args Array of custom CSS arguments.
*/
do_action( 'safecss_parse_pre', $csstidy, $css, $args );
$csstidy->parse( $css );
/**
* Fires after parsing the css with CSSTidy, but only if
* the preprocessor is not cinfigured for use.
*
* @module custom-css
*
* @since 1.7.0
*
* @param obj $csstidy The csstidy object.
* @param array $warnings Array of warnings.
* @param array $args Array of custom CSS arguments.
*/
do_action( 'safecss_parse_post', $csstidy, $warnings, $args );
$css = $csstidy->print->plain();
}
if ( $args['add_to_existing'] )
$add_to_existing = 'yes';
else
$add_to_existing = 'no';
if ( $args['is_preview'] || Jetpack_Custom_CSS::is_freetrial() ) {
// Save the CSS
$safecss_revision_id = Jetpack_Custom_CSS::save_revision( $css, true, $args['preprocessor'] );
// Cache Buster
update_option( 'safecss_preview_rev', intval( get_option( 'safecss_preview_rev' ) ) + 1);
update_metadata( 'post', $safecss_revision_id, 'custom_css_add', $add_to_existing );
update_metadata( 'post', $safecss_revision_id, 'content_width', $args['content_width'] );
update_metadata( 'post', $safecss_revision_id, 'custom_css_preprocessor', $args['preprocessor'] );
delete_option( 'safecss_add' );
delete_option( 'safecss_content_width' );
if ( $args['is_preview'] ) {
return $safecss_revision_id;
}
/**
* Fires after saving Custom CSS.
*
* @module custom-css
*
* @since 1.7.0
*/
do_action( 'safecss_save_preview_post' );
}
// Save the CSS
$safecss_post_id = Jetpack_Custom_CSS::save_revision( $css, false, $args['preprocessor'] );
$safecss_post_revision = Jetpack_Custom_CSS::get_current_revision();
update_option( 'safecss_rev', intval( get_option( 'safecss_rev' ) ) + 1 );
update_post_meta( $safecss_post_id, 'custom_css_add', $add_to_existing );
update_post_meta( $safecss_post_id, 'content_width', $args['content_width'] );
update_post_meta( $safecss_post_id, 'custom_css_preprocessor', $args['preprocessor'] );
delete_option( 'safecss_add' );
delete_option( 'safecss_content_width' );
update_metadata( 'post', $safecss_post_revision['ID'], 'custom_css_add', $add_to_existing );
update_metadata( 'post', $safecss_post_revision['ID'], 'content_width', $args['content_width'] );
update_metadata( 'post', $safecss_post_revision['ID'], 'custom_css_preprocessor', $args['preprocessor'] );
delete_option( 'safecss_preview_add' );
return $safecss_post_id;
}
/**
* Get the published custom CSS post.
*
* @return array
*/
static function get_post() {
$custom_css_post_id = Jetpack_Custom_CSS::post_id();
if ( $custom_css_post_id )
return get_post( $custom_css_post_id, ARRAY_A );
return array();
}
/**
* Get the post ID of the published custom CSS post.
*
* @return int|bool The post ID if it exists; false otherwise.
*/
static function post_id() {
/**
* Filter the ID of the post where Custom CSS is stored, before the ID is retrieved.
*
* If the callback function returns a non-null value, then post_id() will immediately
* return that value, instead of retrieving the normal post ID.
*
* @module custom-css
*
* @since 3.8.1
*
* @param null null The ID to return instead of the normal ID.
*/
$custom_css_post_id = apply_filters( 'jetpack_custom_css_pre_post_id', null );
if ( ! is_null( $custom_css_post_id ) ) {
return $custom_css_post_id;
}
$custom_css_post_id = wp_cache_get( 'custom_css_post_id' );
if ( false === $custom_css_post_id ) {
$custom_css_posts = get_posts( array(
'posts_per_page' => 1,
'post_type' => 'safecss',
'post_status' => 'publish',
'orderby' => 'date',
'order' => 'DESC'
) );
if ( count( $custom_css_posts ) > 0 )
$custom_css_post_id = $custom_css_posts[0]->ID;
else
$custom_css_post_id = 0;
// Save post_id=0 to note that no safecss post exists.
wp_cache_set( 'custom_css_post_id', $custom_css_post_id );
}
if ( ! $custom_css_post_id )
return false;
return $custom_css_post_id;
}
/**
* Get the current revision of the original safecss record
*
* @return object
*/
static function get_current_revision() {
$safecss_post = Jetpack_Custom_CSS::get_post();
if ( empty( $safecss_post ) ) {
return false;
}
$revisions = wp_get_post_revisions( $safecss_post['ID'], array( 'posts_per_page' => 1, 'orderby' => 'date', 'order' => 'DESC' ) );
// Empty array if no revisions exist
if ( empty( $revisions ) ) {
// Return original post
return $safecss_post;
} else {
// Return the first entry in $revisions, this will be the current revision
$current_revision = get_object_vars( array_shift( $revisions ) );
return $current_revision;
}
}
/**
* Save new revision of CSS
* Checks to see if content was modified before really saving
*
* @param string $css
* @param bool $is_preview
* @return bool|int If nothing was saved, returns false. If a post
* or revision was saved, returns the post ID.
*/
static function save_revision( $css, $is_preview = false, $preprocessor = '' ) {
$safecss_post = Jetpack_Custom_CSS::get_post();
$compressed_css = Jetpack_Custom_CSS::minify( $css, $preprocessor );
// If null, there was no original safecss record, so create one
if ( null == $safecss_post ) {
if ( ! $css )
return false;
$post = array();
$post['post_content'] = $css;
$post['post_title'] = 'safecss';
$post['post_status'] = 'publish';
$post['post_type'] = 'safecss';
$post['post_content_filtered'] = $compressed_css;
// Set excerpt to current theme, for display in revisions list
if ( function_exists( 'wp_get_theme' ) ) {
$current_theme = wp_get_theme();
$post['post_excerpt'] = $current_theme->Name;
}
else {
$post['post_excerpt'] = get_current_theme();
}
// Insert the CSS into wp_posts
$post_id = wp_insert_post( $post );
wp_cache_set( 'custom_css_post_id', $post_id );
return $post_id;
}
// Update CSS in post array with new value passed to this function
$safecss_post['post_content'] = $css;
$safecss_post['post_content_filtered'] = $compressed_css;
// Set excerpt to current theme, for display in revisions list
if ( function_exists( 'wp_get_theme' ) ) {
$current_theme = wp_get_theme();
$safecss_post['post_excerpt'] = $current_theme->Name;
}
else {
$safecss_post['post_excerpt'] = get_current_theme();
}
// Don't carry over last revision's timestamps, otherwise revisions all have matching timestamps
unset( $safecss_post['post_date'] );
unset( $safecss_post['post_date_gmt'] );
unset( $safecss_post['post_modified'] );
unset( $safecss_post['post_modified_gmt'] );
// Do not update post if we are only saving a preview
if ( false === $is_preview ) {
$post_id = wp_update_post( $safecss_post );
wp_cache_set( 'custom_css_post_id', $post_id );
return $post_id;
}
else if ( ! defined( 'DOING_MIGRATE' ) ) {
return _wp_put_post_revision( $safecss_post );
}
}
static function skip_stylesheet() {
/**
* Prevent the Custom CSS stylesheet from being enqueued.
*
* @module custom-css
*
* @since 2.2.1
*
* @param null Should the stylesheet be skipped. Default to null. Anything else will force the stylesheet to be skipped.
*/
$skip_stylesheet = apply_filters( 'safecss_skip_stylesheet', null );
if ( null !== $skip_stylesheet ) {
return $skip_stylesheet;
} elseif ( Jetpack_Custom_CSS::is_customizer_preview() ) {
return false;
} else {
if ( Jetpack_Custom_CSS::is_preview() ) {
$safecss_post = Jetpack_Custom_CSS::get_current_revision();
if ( $safecss_post )
return (bool) ( get_post_meta( $safecss_post['ID'], 'custom_css_add', true ) == 'no' );
else
return (bool) ( get_option( 'safecss_preview_add' ) == 'no' );
}
else {
$custom_css_post_id = Jetpack_Custom_CSS::post_id();
if ( $custom_css_post_id ) {
$custom_css_add = get_post_meta( $custom_css_post_id, 'custom_css_add', true );
// It is possible for the CSS to be stored in a post but for the safecss_add option
// to have not been upgraded yet if the user hasn't opened their Custom CSS editor
// since October 2012.
if ( ! empty( $custom_css_add ) )
return (bool) ( $custom_css_add === 'no' );
}
return (bool) ( get_option( 'safecss_add' ) == 'no' );
}
}
}
static function is_preview() {
return isset( $_GET['csspreview'] ) && $_GET['csspreview'] === 'true';
}
/**
* Currently this filter function gets called on
* 'template_redirect' action and
* 'admin_init' action
*/
static function set_content_width(){
// Don't apply this filter on the Edit CSS page
if ( isset( $_GET ) && isset( $_GET['page'] ) && 'editcss' == $_GET['page'] && is_admin() ) {
return;
}
$GLOBALS['content_width'] = Jetpack::get_content_width();
}
/*
* False when the site has the Custom Design upgrade.
* Used only on WordPress.com.
*/
static function is_freetrial() {
/**
* Determine if a WordPress.com site uses a Free trial of the Custom Design Upgrade.
* Used only on WordPress.com.
*
* @module custom-css
*
* @since 1.7.0
*
* @param bool false Does the site use a Free trial of the Custom Design Upgrade. Default to false.
*/
return apply_filters( 'safecss_is_freetrial', false );
}
static function get_preprocessor_key() {
$safecss_post = Jetpack_Custom_CSS::get_current_revision();
return get_post_meta( $safecss_post['ID'], 'custom_css_preprocessor', true );
}
static function get_preprocessor() {
/** This filter is documented in modules/custom-css/custom-css.php */
$preprocessors = apply_filters( 'jetpack_custom_css_preprocessors', array() );
$selected_preprocessor_key = self::get_preprocessor_key();
$selected_preprocessor = isset( $preprocessors[ $selected_preprocessor_key ] ) ? $preprocessors[ $selected_preprocessor_key ] : null;
return $selected_preprocessor;
}
static function get_css( $compressed = false ) {
/**
* Filter the Custom CSS returned.
* Can be used to return an error, or no CSS at all.
*
* @module custom-css
*
* @since 1.7.0
*
* @param bool false Should we return an error instead of the Custom CSS. Default to false.
*/
$default_css = apply_filters( 'safecss_get_css_error', false );
if ( $default_css !== false )
return $default_css;
$option = ( Jetpack_Custom_CSS::is_preview() || Jetpack_Custom_CSS::is_freetrial() ) ? 'safecss_preview' : 'safecss';
$css = '';
if ( 'safecss' == $option ) {
// Don't bother checking for a migrated 'safecss' option if it never existed.
if ( false === get_option( 'safecss' ) || get_option( 'safecss_revision_migrated' ) ) {
$safecss_post = Jetpack_Custom_CSS::get_post();
if ( ! empty( $safecss_post ) ) {
$css = ( $compressed && $safecss_post['post_content_filtered'] ) ? $safecss_post['post_content_filtered'] : $safecss_post['post_content'];
}
} else {
$current_revision = Jetpack_Custom_CSS::get_current_revision();
if ( false === $current_revision ) {
$css = '';
} else {
$css = ( $compressed && $current_revision['post_content_filtered'] ) ? $current_revision['post_content_filtered'] : $current_revision['post_content'];
}
}
// Fix for un-migrated Custom CSS
if ( empty( $safecss_post ) ) {
$_css = get_option( 'safecss' );
if ( !empty( $_css ) ) {
$css = $_css;
}
}
}
else if ( 'safecss_preview' == $option ) {
$safecss_post = Jetpack_Custom_CSS::get_current_revision();
$css = $safecss_post['post_content'];
$css = stripslashes( $css );
$css = Jetpack_Custom_CSS::minify( $css, get_post_meta( $safecss_post['ID'], 'custom_css_preprocessor', true ) );
}
$css = str_replace( array( '\\\00BB \\\0020', '\0BB \020', '0BB 020' ), '\00BB \0020', $css );
if ( empty( $css ) ) {
$css = "/*\n"
. wordwrap(
/**
* Filter the default message displayed in the Custom CSS editor.
*
* @module custom-css
*
* @since 1.7.0
*
* @param string $str Default Custom CSS editor content.
*/
apply_filters(
'safecss_default_css',
__(
"Welcome to Custom CSS!\n\nTo learn how this works, see http://wp.me/PEmnE-Bt",
'jetpack'
)
)
)
. "\n*/";
}
/**
* Filter the Custom CSS returned from the editor.
*
* @module custom-css
*
* @since 1.7.0
*
* @param string $css Custom CSS.
*/
$css = apply_filters( 'safecss_css', $css );
return $css;
}
static function replace_insecure_urls( $css ) {
if ( ! function_exists( '_sa_get_frontend_https_url_replacement_map' ) ) {
return $css;
}
list( $http_urls, $secure_urls ) = _sa_get_frontend_https_url_replacement_map();
return str_replace( $http_urls, $secure_urls, $css );
}
static function print_css() {
/**
* Fires right before printing the custom CSS inside the <head> element.
*
* @module custom-css
*
* @since 1.7.0
*/
do_action( 'safecss_print_pre' );
$css = Jetpack_Custom_CSS::get_css( true );
echo self::replace_insecure_urls( $css );
}
static function should_we_inline_custom_css( $should_we, $css ) {
// If the CSS is less than 2,000 characters, inline it! otherwise return what was passed in.
return ( strlen( $css ) < 2000 ) ? true : $should_we;
}
static function link_tag() {
global $blog_id, $current_blog;
if (
/**
* Do not include any CSS on the page if the CSS includes an error.
* Setting this filter to true stops any Custom CSS from being enqueued.
*
* @module custom-css
*
* @since 1.7.0
*
* @param bool false Does the CSS include an error. Default to false.
*/
apply_filters( 'safecss_style_error', false )
) {
return;
}
if ( ! is_super_admin() && isset( $current_blog ) && ( 1 == $current_blog->spam || 1 == $current_blog->deleted ) )
return;
if ( Jetpack_Custom_CSS::is_customizer_preview() )
return;
$css = '';
$option = Jetpack_Custom_CSS::is_preview() ? 'safecss_preview' : 'safecss';
if ( 'safecss' == $option ) {
if ( get_option( 'safecss_revision_migrated' ) ) {
$safecss_post = Jetpack_Custom_CSS::get_post();
if ( ! empty( $safecss_post['post_content'] ) ) {
$css = $safecss_post['post_content'];
}
} else {
$current_revision = Jetpack_Custom_CSS::get_current_revision();
if ( ! empty( $current_revision['post_content'] ) ) {
$css = $current_revision['post_content'];
}
}
// Fix for un-migrated Custom CSS
if ( empty( $safecss_post ) ) {
$_css = get_option( 'safecss' );
if ( !empty( $_css ) ) {
$css = $_css;
}
}
}
if ( 'safecss_preview' == $option ) {
$safecss_post = Jetpack_Custom_CSS::get_current_revision();
if ( !empty( $safecss_post['post_content'] ) ) {
$css = $safecss_post['post_content'];
}
}
$css = str_replace( array( '\\\00BB \\\0020', '\0BB \020', '0BB 020' ), '\00BB \0020', $css );
if ( $css == '' )
return;
if (
/**
* Allow inserting CSS inline instead of through a separate file.
*
* @module custom-css
*
* @since 3.4.0
*
* @param bool false Should the CSS be added inline instead of through a separate file. Default to false.
* @param string $css Custom CSS.
*/
apply_filters( 'safecss_embed_style', false, $css )
) {
echo "\r\n" . '<style id="custom-css-css">' . Jetpack_Custom_CSS::get_css( true ) . "</style>\r\n";
} else {
$href = home_url( '/' );
$href = add_query_arg( 'custom-css', 1, $href );
$href = add_query_arg( 'csblog', $blog_id, $href );
$href = add_query_arg( 'cscache', 6, $href );
$href = add_query_arg( 'csrev', (int) get_option( $option . '_rev' ), $href );
/**
* Filter the Custom CSS link enqueued in the head.
*
* @module custom-css
*
* @since 1.7.0
*
* @param string $href Custom CSS link enqueued in the head.
* @param string $blog_id Blog ID.
*/
$href = apply_filters( 'safecss_href', $href, $blog_id );
if ( Jetpack_Custom_CSS::is_preview() )
$href = add_query_arg( 'csspreview', 'true', $href );
?>
<link rel="stylesheet" id="custom-css-css" type="text/css" href="<?php echo esc_url( $href ); ?>" />
<?php
}
/**
* Fires after creating the <link> in the <head> element for the custom css stylesheet.
*
* @module custom-css
*
* @since 2.2.2
*/
do_action( 'safecss_link_tag_post' );
}
static function style_filter( $current ) {
if ( Jetpack_Custom_CSS::is_freetrial() && ( ! Jetpack_Custom_CSS::is_preview() || ! current_user_can( 'switch_themes' ) ) )
return $current;
else if ( Jetpack_Custom_CSS::skip_stylesheet() )
/**
* Filter the default blank Custom CSS URL.
*
* @module custom-css
*
* @since 2.2.1
*
* @param string $url Default blank Custom CSS URL.
*/
return apply_filters( 'safecss_style_filter_url', plugins_url( 'custom-css/css/blank.css', __FILE__ ) );
return $current;
}
static function buffer( $html ) {
$html = str_replace( '</body>', Jetpack_Custom_CSS::preview_flag(), $html );
return preg_replace_callback( '!href=([\'"])(.*?)\\1!', array( 'Jetpack_Custom_CSS', 'preview_links' ), $html );
}
static function preview_links( $matches ) {
if ( 0 !== strpos( $matches[2], get_option( 'home' ) ) )
return $matches[0];
$link = wp_specialchars_decode( $matches[2] );
$link = add_query_arg( 'csspreview', 'true', $link );
$link = esc_url( $link );
return "href={$matches[1]}$link{$matches[1]}";
}
/**
* Places a black bar above every preview page
*/
static function preview_flag() {
if ( is_admin() )
return;
$message = esc_html__( 'Preview: changes must be saved or they will be lost', 'jetpack' );
/**
* Filter the Preview message displayed on the site when previewing custom CSS, before to save it.
*
* @module custom-css
*
* @since 1.7.0
*
* @param string $message Custom CSS preview message.
*/
$message = apply_filters( 'safecss_preview_message', $message );
$preview_flag_js = "var flag = document.createElement('div');
flag.innerHTML = " . json_encode( $message ) . ";
flag.style.background = '#FF6600';
flag.style.color = 'white';
flag.style.textAlign = 'center';
flag.style.fontSize = '15px';
flag.style.padding = '2px';
flag.style.fontFamily = 'sans-serif';
document.body.style.paddingTop = '0px';
document.body.insertBefore(flag, document.body.childNodes[0]);
";
/**
* Filter the Custom CSS preview message JS styling.
*
* @module custom-css
*
* @since 1.7.0
*
* @param string $preview_flag_js Custom CSS preview message JS styling.
*/
$preview_flag_js = apply_filters( 'safecss_preview_flag_js', $preview_flag_js );
if ( $preview_flag_js ) {
$preview_flag_js = '<script type="text/javascript">
// <![CDATA[
' . $preview_flag_js . '
// ]]>
</script>';
}
return $preview_flag_js;
}
static function menu() {
$parent = 'themes.php';
$title = __( 'Edit CSS', 'jetpack' );
$hook = add_theme_page( $title, $title, 'edit_theme_options', 'editcss', array( 'Jetpack_Custom_CSS', 'admin' ) );
add_action( "load-revision.php", array( 'Jetpack_Custom_CSS', 'prettify_post_revisions' ) );
add_action( "load-$hook", array( 'Jetpack_Custom_CSS', 'update_title' ) );
}
/**
* Adds a menu item in the appearance section for this plugin's administration
* page. Also adds hooks to enqueue the CSS and JS for the admin page.
*/
static function update_title() {
global $title;
$title = __( 'CSS', 'jetpack' );
}
static function prettify_post_revisions() {
add_filter( 'the_title', array( 'Jetpack_Custom_CSS', 'post_title' ), 10, 2 );
}
static function post_title( $title, $post_id ) {
if ( !$post_id = (int) $post_id ) {
return $title;
}
if ( !$post = get_post( $post_id ) ) {
return $title;
}
if ( 'safecss' != $post->post_type ) {
return $title;
}
return __( 'Custom CSS Stylesheet', 'jetpack' );
}
static function enqueue_scripts( $hook ) {
if ( 'appearance_page_editcss' != $hook )
return;
wp_enqueue_script( 'postbox' );
wp_enqueue_script( 'custom-css-editor', plugins_url( 'custom-css/js/css-editor.js', __FILE__ ), 'jquery', '20130325', true );
wp_enqueue_style( 'custom-css-editor', plugins_url( 'custom-css/css/css-editor.css', __FILE__ ) );
if ( defined( 'SAFECSS_USE_ACE' ) && SAFECSS_USE_ACE ) {
wp_register_style( 'jetpack-css-codemirror', plugins_url( 'custom-css/css/codemirror.css', __FILE__ ), array(), '20120905' );
wp_enqueue_style( 'jetpack-css-use-codemirror', plugins_url( 'custom-css/css/use-codemirror.css', __FILE__ ), array( 'jetpack-css-codemirror' ), '20120905' );
wp_register_script( 'jetpack-css-codemirror', plugins_url( 'custom-css/js/codemirror.min.js', __FILE__ ), array(), '3.16', true );
wp_enqueue_script( 'jetpack-css-use-codemirror', plugins_url( 'custom-css/js/use-codemirror.js', __FILE__ ), array( 'jquery', 'underscore', 'jetpack-css-codemirror' ), '20131009', true );
}
}
static function saved_message() {
echo '<div id="message" class="updated fade"><p><strong>' . __( 'Stylesheet saved.', 'jetpack' ) . '</strong></p></div>';
}
static function admin() {
add_meta_box( 'submitdiv', __( 'Publish', 'jetpack' ), array( __CLASS__, 'publish_box' ), 'editcss', 'side' );
add_action( 'custom_css_submitbox_misc_actions', array( __CLASS__, 'content_width_settings' ) );
$safecss_post = Jetpack_Custom_CSS::get_post();
if ( ! empty( $safecss_post ) && 0 < $safecss_post['ID'] && wp_get_post_revisions( $safecss_post['ID'] ) )
add_meta_box( 'revisionsdiv', __( 'CSS Revisions', 'jetpack' ), array( __CLASS__, 'revisions_meta_box' ), 'editcss', 'side' );
?>
<div class="wrap">
<?php
/**
* Fires right before the custom css page begins.
*
* @module custom-css
*
* @since 1.7.0
*/
do_action( 'custom_design_header' );
?>
<h1><?php _e( 'CSS Stylesheet Editor', 'jetpack' ); ?></h1>
<form id="safecssform" action="" method="post">
<?php wp_nonce_field( 'safecss' ) ?>
<?php wp_nonce_field( 'meta-box-order', 'meta-box-order-nonce', false ); ?>
<?php wp_nonce_field( 'closedpostboxes', 'closedpostboxesnonce', false ); ?>
<input type="hidden" name="action" value="save" />
<div id="poststuff">
<p class="css-support">
<?php
/**
* Filter the intro text appearing above the Custom CSS Editor.
*
* @module custom-css
*
* @since 1.7.0
*
* @param string $str Intro text appearing above the Custom CSS editor.
*/
echo apply_filters( 'safecss_intro_text', __( 'New to CSS? Start with a <a href="http://www.htmldog.com/guides/cssbeginner/">beginner tutorial</a>. Questions?
Ask in the <a href="http://wordpress.org/support/forum/themes-and-templates">Themes and Templates forum</a>.', 'jetpack' ) );
?></p>
<p class="css-support"><?php echo __( 'Note: Custom CSS will be reset when changing themes.', 'jetpack' ); ?></p>