<?php
// $Id$

/**
 * @file
 * Contains the administrative functions of the PF module.
 *
 * This file is included by the core PF module, and includes the
 * settings form.
 *
 * @ingroup print
 */

/**
 * Menu callback for the Printer-friendly pages module settings form.
 *
 * @ingroup forms
 */
function print_main_settings() {
  $form['settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Common Settings'),
  );

  $form['settings']['print_css'] = array(
    '#type' => 'textfield',
    '#title' => t('Stylesheet URL'),
    '#default_value' => variable_get('print_css', PRINT_CSS_DEFAULT),
    '#size' => 60,
    '#maxlength' => 250,
    '#description' => t('The URL to your custom print cascading stylesheet, if any. When none is specified, the default module CSS file is used.') .'<br />'.
                      t('Macros: %b (base path: "%base"), %t (path to theme: "%theme")', array('%base' => base_path(), '%theme' => path_to_theme())) .'<br />'.
                      t('Requires the <em>administer site configuration</em> permission.'),
    '#disabled' => !user_access('administer site configuration'),
  );

  $form['settings']['print_urls'] = array(
    '#type' => 'checkbox',
    '#title' => t('Printer-friendly URLs list'),
    '#default_value' => variable_get('print_urls', PRINT_URLS_DEFAULT),
    '#description' => t('If set, a list of the destination URLs for the page links will be displayed at the bottom of the page.') .'<br />'.
                      t('Note that you can enable/disable the URL list for each content type individually from the !url.', array('!url' => l(t('Content Types page'), 'admin/content/types'))),
  );

  $form['settings']['print_comments'] = array(
    '#type' => 'checkbox',
    '#title' => t('Include comments in printer-friendly version'),
    '#default_value' => variable_get('print_comments', PRINT_COMMENTS_DEFAULT),
    '#description' => t('When this option is active, user comments are also included in the printer-friendly version. Requires the comment module.'),
  );

  $form['settings']['print_newwindow'] = array(
    '#type' => 'radios',
    '#title' => t('New window method'),
    '#options' => array(t('Use HTML target (does not validate as XHTML Strict)'), t('Use Javascript (requires browser support)')),
    '#default_value' => variable_get('print_newwindow', PRINT_NEWWINDOW_DEFAULT),
    '#description' => t('Choose the method used to open pages in a new window/tab.'),
  );

  $form['settings']['logo'] = array(
    '#type' => 'fieldset',
    '#title' => t('Logo options'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );

  $form['settings']['logo']['print_logo_options'] = array(
    '#type' => 'radios',
    '#title' => t('Logo type'),
    '#options' => array(t('None (Disabled)'), t("Current theme's logo"), t('User-specified')),
    '#default_value' => variable_get('print_logo_options', PRINT_LOGO_OPTIONS_DEFAULT),
    '#description' => t("Select the type of logo to display on the printer-friendly version. In case of a user-specified location, insert the path or URL below."),
  );

  $form['settings']['logo']['print_logo_url'] = array(
    '#type' => 'textfield',
    '#title' => t('Logo URL'),
    '#default_value' => variable_get('print_logo_url', PRINT_LOGO_URL_DEFAULT),
    '#size' => 60,
    '#maxlength' => 250,
  );

  $form['settings']['logo']['print_logo_upload'] = array(
    '#type' => 'file',
    '#title' => t('Upload logo'),
    '#size' => 60,
    '#maxlength' => 250,
    '#description' => t("If you don't have direct file access to the server, use this field to upload your logo."),
  );

  $form['settings']['footer'] = array(
    '#type' => 'fieldset',
    '#title' => t('Footer options'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );

  $form['settings']['footer']['print_footer_options'] = array(
    '#type' => 'radios',
    '#title' => t('Footer type'),
    '#options' => array(t('None (Disabled)'), t("Site's footer"), t('User-specified')),
    '#default_value' => variable_get('print_footer_options', PRINT_FOOTER_OPTIONS_DEFAULT),
    '#description' => t("Select the type of footer to display on the printer-friendly version. In case of a user-specified footer, insert it below."),
  );

  $form['settings']['footer']['print_footer_user'] = array(
    '#type' => 'textfield',
    '#title' => t('User-specified'),
    '#default_value' => variable_get('print_footer_user', PRINT_FOOTER_USER_DEFAULT),
    '#size' => 60,
    '#maxlength' => 250,
  );

  $form['settings']['print_sourceurl_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Source URL'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );

  $form['settings']['print_sourceurl_settings']['print_sourceurl_enabled'] = array(
    '#type' => 'checkbox',
    '#title' => t('Display source URL'),
    '#default_value' => variable_get('print_sourceurl_enabled', PRINT_SOURCEURL_ENABLED_DEFAULT),
    '#description' => t('When this option is selected, the URL for the original page will be displayed at the bottom of the printer-friendly version.'),
  );

  $form['settings']['print_sourceurl_settings']['print_sourceurl_date'] = array(
    '#type' => 'checkbox',
    '#title' => t('Add current time/date to the source URL'),
    '#default_value' => variable_get('print_sourceurl_date', PRINT_SOURCEURL_DATE_DEFAULT),
    '#description' => t('Display the current date and time in the Source URL line.'),
  );

  $form['settings']['print_sourceurl_settings']['print_sourceurl_forcenode'] = array(
    '#type' => 'checkbox',
    '#title' => t('Force use of node ID in source URL'),
    '#default_value' => variable_get('print_sourceurl_forcenode', PRINT_SOURCEURL_FORCENODE_DEFAULT),
    '#description' => t("Drupal will attempt to use the page's defined alias in case there is one. To force the use of the fixed URL, activate this option."),
  );

  $form['#attributes'] = array('enctype' => 'multipart/form-data');
  $form['#validate'][] = '_print_main_settings_validate';

  return system_settings_form($form);
}

/**
 * Validate print_main_settings form.
 */
function _print_main_settings_validate($form, &$form_state) {
  global $base_url;

  // Check for a new uploaded logo, and use that instead.
  if ($file = file_save_upload('print_logo_upload', array('file_validate_is_image' => array()))) {
    $parts = pathinfo($file->filename);
    $filename = 'print_logo.'. drupal_strtolower($parts['extension']);

    // The image was saved using file_save_upload() and was added to the
    // files table as a temporary file. We'll make a copy and let the garbage
    // collector delete the original upload.
    if (file_copy($file, $filename, FILE_EXISTS_REPLACE)) {
      $form_state['values']['print_logo_options'] = 2;
      $form_state['values']['print_logo_url'] = base_path() . $file->filepath;
    }
  }

  // Check that the stylesheet URL is a local URL, if it is an absolute URL, then it must start with the site's base URL
  if (preg_match('!^http://.*!', $form_state['values']['print_css'], $matches)) {
    if (!preg_match("!^$base_url/!", $matches[0])) {
      form_set_error('print_css', t("Stylesheet URL must be a relative path or start with the site's base URL"));
    }
  }
}

/**
 * Menu callback for the Printer-friendly pages HTML settings form.
 *
 * @ingroup forms
 */
function print_html_settings() {
  $form['settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Web page options'),
  );

  $form['settings']['print_html_link_pos'] = array(
    '#type' => 'checkboxes',
    '#title' => t('Printer-friendly page link'),
    '#default_value' => variable_get('print_html_link_pos', array(PRINT_HTML_LINK_POS_DEFAULT => PRINT_HTML_LINK_POS_DEFAULT)),
    '#options' => array('link' => t('Links area'), 'corner' => t('Content corner')),
    '#description' => t('Choose the location of the link(s) to the printer-friendly page. The Links area is usually below the node content, whereas the Content corner is placed in the upper-right corner of the node content. Unselect all options to disable the link. Even if the link is disabled, you can still view the print version of a node by going to !path/nid where nid is the numeric id of the node.', array('!path' => PRINT_PATH)),
  );

  $form['settings']['adv_link'] = array(
    '#type' => 'fieldset',
    '#title' => t('Advanced link options'),
    '#collapsible' => TRUE,
    '#collapsed' => FALSE,
  );

  $form['settings']['adv_link']['print_html_show_link'] = array(
    '#type' => 'radios',
    '#title' => t('Link style'),
    '#default_value' => variable_get('print_html_show_link', PRINT_HTML_SHOW_LINK_DEFAULT),
    '#options' => array(1 => t('Text only'), 2 => t('Icon only'), 3 => t('Icon and Text')),
    '#description' => t('Select the visual style of the link.'),
  );

  $form['settings']['adv_link']['print_html_link_use_alias'] = array(
    '#type' => 'checkbox',
    '#title' => t('Use URL alias instead of node ID'),
    '#default_value' => variable_get('print_html_link_use_alias', PRINT_HTML_LINK_USE_ALIAS_DEFAULT),
    '#description' => t('Enabling this will create the link using the URL alias instead of the node ID.'),
  );

  $form['settings']['adv_link']['print_html_link_class'] = array(
    '#type' => 'textfield',
    '#title' => t('Link class'),
    '#default_value' => variable_get('print_html_link_class', PRINT_HTML_LINK_CLASS_DEFAULT),
    '#size' => 60,
    '#maxlength' => 250,
    '#description' => t('This can be used by themers to change the link style or by jQuery modules to open in a new window (e.g. greybox or thickbox). Multiple classes can be specified, separated by spaces.'),
  );

  $form['settings']['adv_link']['print_html_node_link_visibility'] = array(
    '#type' => 'radios',
    '#title' => t('Link visibility'),
    '#default_value' => variable_get('print_html_node_link_visibility', PRINT_HTML_NODE_LINK_VISIBILITY_DEFAULT),
    '#options' => array(t('Show on every page except the listed pages.'), t('Show on only the listed pages.')),
  );

  $form['settings']['adv_link']['print_html_node_link_pages'] = array(
    '#type' => 'textarea',
    '#default_value' => variable_get('print_html_node_link_pages', PRINT_HTML_NODE_LINK_PAGES_DEFAULT),
    '#rows' => 3,
    '#description' => t("Enter one page per line as Drupal paths. The '*' character is a wildcard. Example paths are %blog for the blog page and %blog-wildcard for every personal blog. %front is the front page.", array('%blog' => 'blog', '%blog-wildcard' => 'blog/*', '%front' => '<front>')),
  );

  $access = user_access('use PHP for link visibility');

  if ($form['settings']['adv_link']['print_html_node_link_visibility']['#default_value'] == 2 && !$access) {
    $form['settings']['adv_link']['print_html_node_link_visibility'] = array('#type' => 'value', '#value' => 2);
    $form['settings']['adv_link']['print_html_node_link_pages'] = array('#type' => 'value', '#value' => $form['settings']['adv_link']['print_html_node_link_pages']['#default_value']);
  }
  elseif ($access) {
    $form['settings']['adv_link']['print_html_node_link_visibility']['#options'][] = t('Show if the following PHP code returns <code>TRUE</code> (PHP-mode, experts only).');
    $form['settings']['adv_link']['print_html_node_link_pages']['#description'] .= ' '. t('If the PHP-mode is chosen, enter PHP code between %php. Note that executing incorrect PHP-code can break your Drupal site.', array('%php' => '<?php ?>'));
  }

  $form['settings']['adv_link']['print_html_sys_link_visibility'] = array(
    '#type' => 'radios',
    '#title' => t('Show link in system (non-content) pages'),
    '#default_value' => variable_get('print_html_sys_link_visibility', PRINT_HTML_SYS_LINK_VISIBILITY_DEFAULT),
    '#options' => array(t('Show on every page except the listed pages.'), t('Show on only the listed pages.')),
  );

  $form['settings']['adv_link']['print_html_sys_link_pages'] = array(
    '#type' => 'textarea',
    '#default_value' => variable_get('print_html_sys_link_pages', PRINT_HTML_SYS_LINK_PAGES_DEFAULT),
    '#rows' => 3,
    '#description' => t('Setting this option will add a printer-friendly version page link on pages created by Drupal or the enabled modules.') .'<br />'.
                      t("Enter one page per line as Drupal paths. The '*' character is a wildcard. Example paths are %blog for the blog page and %blog-wildcard for every personal blog. %front is the front page.", array('%blog' => 'blog', '%blog-wildcard' => 'blog/*', '%front' => '<front>')),
  );

  if ($form['settings']['adv_link']['print_html_sys_link_visibility']['#default_value'] == 2 && !$access) {
    $form['settings']['adv_link']['print_html_sys_link_visibility'] = array('#type' => 'value', '#value' => 2);
    $form['settings']['adv_link']['print_html_sys_link_pages'] = array('#type' => 'value', '#value' => $form['settings']['adv_link']['print_html_sys_link_pages']['#default_value']);
  }
  elseif ($access) {
    $form['settings']['adv_link']['print_html_sys_link_visibility']['#options'][] = t('Show if the following PHP code returns <code>TRUE</code> (PHP-mode, experts only).');
    $form['settings']['adv_link']['print_html_sys_link_pages']['#description'] .= ' '. t('If the PHP-mode is chosen, enter PHP code between %php. Note that executing incorrect PHP-code can break your Drupal site.', array('%php' => '<?php ?>'));
  }

  $form['settings']['adv_link']['print_html_book_link'] = array(
    '#type' => 'radios',
    '#title' => t('Link in book hierarchy nodes'),
    '#default_value' => variable_get('print_html_book_link', PRINT_HTML_BOOK_LINK_DEFAULT),
    '#options' => array(t('Book module link not modified'), t('Current page and sub-pages'), t('Current page only')),
  );

  $form['settings']['print_html_new_window'] = array(
    '#type' => 'checkbox',
    '#title' => t('Open the printer-friendly version in a new window'),
    '#default_value' => variable_get('print_html_new_window', PRINT_HTML_NEW_WINDOW_DEFAULT),
    '#description' => t('Setting this option will make the printer-friendly version open in a new window/tab.'),
  );

  $form['settings']['print_html_sendtoprinter'] = array(
    '#type' => 'checkbox',
    '#title' => t('Send to printer'),
    '#default_value' => variable_get('print_html_sendtoprinter', PRINT_HTML_SENDTOPRINTER_DEFAULT),
    '#description' => t("Automatically calls the browser's print function when the printer-friendly version is displayed."),
  );

  $form['settings']['print_html_windowclose'] = array(
    '#type' => 'checkbox',
    '#title' => t('Close window after sending to printer'),
    '#default_value' => variable_get('print_html_windowclose', PRINT_HTML_WINDOWCLOSE_DEFAULT),
    '#description' => t("When the above options are enabled, this option will close the window after its contents are printed."),
  );

  $form['settings']['print_robots_settings'] = array(
      '#type' => 'fieldset',
      '#title' => t('Robots META tags'),
      '#collapsible' => TRUE,
      '#collapsed' => TRUE,
  );

  $form['settings']['print_robots_settings']['print_robots_noindex'] = array(
    '#type' => 'checkbox',
    '#title' => t('Add noindex'),
    '#default_value' => variable_get('print_robots_noindex', PRINT_ROBOTS_NOINDEX_DEFAULT),
    '#description' => t('Instruct robots to not index printer-friendly pages. Recommended for good search engine karma.'),
  );

  $form['settings']['print_robots_settings']['print_robots_nofollow'] = array(
    '#type' => 'checkbox',
    '#title' => t('Add nofollow'),
    '#default_value' => variable_get('print_robots_nofollow', PRINT_ROBOTS_NOFOLLOW_DEFAULT),
    '#description' => t('Instruct robots to not follow outgoing links on printer-friendly pages.'),
  );

  $form['settings']['print_robots_settings']['print_robots_noarchive'] = array(
    '#type' => 'checkbox',
    '#title' => t('Add noarchive'),
    '#default_value' => variable_get('print_robots_noarchive', PRINT_ROBOTS_NOARCHIVE_DEFAULT),
    '#description' => t('Non-standard tag to instruct search engines to not show a "Cached" link for your printer-friendly pages. Recognized by Googlebot.'),
  );

  return system_settings_form($form);
}

/**
 * Menu callback for the Printer-friendly pages module text strings settings form.
 *
 * @ingroup forms
 */
function print_main_strings_settings() {
  drupal_set_message(t("Saving these strings will disable their translation via Drupal's language system. Use the reset button to return them to the original state."), 'warning');

  $form['print_main_text'] = array(
    '#type' => 'fieldset',
    '#title' => t('Text strings'),
  );

  $form['print_main_text']['print_text_published'] = array(
    '#type' => 'textfield',
    '#default_value' => variable_get('print_text_published', t('Published on %site_name')),
  );
  $form['print_main_text']['print_text_by'] = array(
    '#type' => 'textfield',
    '#default_value' => variable_get('print_text_by', t('By %author')),
  );
  $form['print_main_text']['print_text_created'] = array(
    '#type' => 'textfield',
    '#default_value' => variable_get('print_text_created', t('Created %date')),
  );
  $form['print_main_text']['print_text_source_url'] = array(
    '#type' => 'textfield',
    '#default_value' => variable_get('print_text_source_url', t('Source URL')),
  );
  $form['print_main_text']['print_text_retrieved'] = array(
    '#type' => 'textfield',
    '#default_value' => variable_get('print_text_retrieved', t('retrieved on %date')),
  );
  $form['print_main_text']['print_text_links'] = array(
    '#type' => 'textfield',
    '#default_value' => variable_get('print_text_links', t('Links')),
  );

  return system_settings_form($form);
}

/**
 * Menu callback for the Printer-friendly pages module text strings settings form.
 *
 * @ingroup forms
 */
function print_html_strings_settings() {
  drupal_set_message(t("Saving these strings will disable their translation via Drupal's language system. Use the reset button to return them to the original state."), 'warning');

  $form['print_html_text'] = array(
    '#type' => 'fieldset',
    '#title' => t('Text strings'),
  );

  $form['print_html_text']['print_html_link_text'] = array(
    '#type' => 'textfield',
    '#title' => t('Link text'),
    '#default_value' => variable_get('print_html_link_text', t('Printer-friendly version')),
    '#description' => t('Text used in the link to the printer-friendly version.'),
  );

  return system_settings_form($form);
}