'fieldset', '#title' => t('Preview settings'), '#collapsible' => TRUE, '#collapsed' => FALSE); $form['preview']['file_text_preview_lines'] = array( '#type' => 'textfield', '#title' => t('How many text lines should be shown in a text previews'), '#default_value' => FILE_TEXT_PREVIEW_LINES, '#size' => 10, '#maxlength' => 255, '#description' => t('Specify the maximum number of text lines to be shown when displaying preview of the text files. Set the value to zero to show all lines.'), ); $form['preview']['file_text_preview_string'] = array( '#type' => 'textfield', '#title' => t('The preview end message.'), '#default_value' => FILE_TEXT_PREVIEW_STRING, '#size' => 50, '#maxlength' => 255, '#description' => t('The string that will be displayed at the end of the text preview to indicate that the preview is not a complete text file.'), ); // Code preview settings. $form['code'] = array('#type' => 'fieldset', '#title' => t('Code preview settings'), '#description' => _file_command_exists('code2html') ? t('"code2html" utility is installed in the system.') : t('"code2html" utility is not installed in the system.'), '#collapsible' => TRUE, '#collapsed' => FALSE); $form['code']['file_text_code'] = array( '#type' => 'checkbox', '#title' => t('Enable Code2HTML syntax highlighted HTML preview'), '#default_value' => _file_command_exists('code2html') ? FILE_TEXT_CODE : 0, '#description' => t('Check this box if you want a syntax highlighted HTML previews to be created for the "text/plain" MIME files.'), '#disabled' => _file_command_exists('code2html') ? FALSE : TRUE, ); $form['submit'] = array( '#type' => 'submit', '#value' => t('Save configuration'), ); $form['reset'] = array( '#type' => 'submit', '#value' => t('Reset to defaults'), ); return $form; } /** * Validate hook for the settings form. */ function file_text_admin_settings_validate($form, &$form_state) { $op = $form_state['clicked_button']['#value']; $values = $form_state['values']; switch ($op) { case t('Save configuration'): $preview_lines = $values['file_text_preview_lines']; if (!ctype_digit($preview_lines)) { form_set_error('file_text_preview_lines', t('Invalid value %value specified for the number of lines.', array('%value' => $preview_lines))); } if (!empty($values['file_text_code']) && !_file_command_exists('code2html')) { form_set_error('file_text_code', t('Code2HTML cannot be enabled because code2html utility is not found in the system path.')); } break; } } /** * Submit hook for the settings form. */ function file_text_admin_settings_submit($form, &$form_state) { $op = $form_state['clicked_button']['#value']; $values = $form_state['values']; switch ($op) { case t('Save configuration'): variable_set('file_text_preview_lines', $values['file_text_preview_lines']); variable_set('file_text_preview_string', $values['file_text_preview_string']); variable_set('file_text_code', $values['file_text_code']); drupal_set_message(t('The configuration options have been saved.')); break; case t('Reset to defaults'): variable_del('file_text_preview_lines'); variable_del('file_text_preview_string'); variable_del('file_text_code'); drupal_set_message(t('The configuration options have been reset to their default values.')); break; } }