function layout_breakpoint_edit_form_validate in Layout 7

Validation for breakpoint item settings form.

See also

layout_breakpoint_edit_form().

1 string reference to 'layout_breakpoint_edit_form_validate'

layout_breakpoint.inc in plugins/export_ui/layout_breakpoint.inc

File

plugins/export_ui/layout_breakpoint.inc, line 67

Code

function layout_breakpoint_edit_form_validate(&$form, $form_state) {
  if (!preg_match('!^\\d+(px|em)$!', $form_state['values']['width'])) {
    form_set_error('width', t('Only pixel or em based breakpoints are supported, for example 960px or 41em.'));
  }
}