Helper Hooks – Page 86 – Jetpack Developer Resources

filter
`safecss_css`
Filter the Custom CSS returned from the editor.
filter
`safecss_default_css`
Filter the default message displayed in the Custom CSS editor.
filter
`safecss_get_css_error`
Filter the Custom CSS returned.Can be used to return an error, or no CSS at all.
filter
`jetpack_custom_css_preprocessors`
Filter the array of available Custom CSS preprocessors.
filter
`safecss_is_freetrial`
Determine if a WordPress.com site uses a Free trial of the Custom Design Upgrade.Used only on WordPress.com.
filter
`safecss_skip_stylesheet`
Prevent the Custom CSS stylesheet from being enqueued.
action
`safecss_save_preview_post`
Fires after saving Custom CSS.
action
`safecss_parse_post`
Fires after parsing the css with CSSTidy, but only if the preprocessor is not cinfigured for use.
action
`safecss_parse_pre`
Fires before parsing the css with CSSTidy, but only if the preprocessor is not configured for use.
action
`safecss_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