<?php

/**

 * @file

 * Administrative page callbacks for the shortcut module.

 */

/**

 * Returns the maximum number of shortcut "slots" available per shortcut set.

 *

 * This is used as a limitation in the user interface only.

 *

 * @return

 *   The maximum number of shortcuts allowed to be added to a shortcut set.

 */

function shortcut_max_slots() {

  return variable_get('shortcut_max_slots', 7);

}

/**

 * Form callback: builds the form for switching shortcut sets.

 *

 * @param $form

 *   An associative array containing the structure of the form.

 * @param $form_state

 *   An associative array containing the current state of the form.

 * @param $account

 *   (optional) The user account whose shortcuts will be switched. Defaults to

 *   the current logged-in user.

 *

 * @return

 *   An array representing the form definition.

 *

 * @ingroup forms

 * @see shortcut_set_switch_validate()

 * @see shortcut_set_switch_submit()

 */

function shortcut_set_switch($form, &$form_state, $account = NULL) {

  global $user;

  if (!isset($account)) {

    $account = $user;

  }

  // Prepare the list of shortcut sets.

  $sets = shortcut_sets();

  $current_set = shortcut_current_displayed_set($account);

  $options = array();

  foreach ($sets as $name => $set) {

    $options[$name] = check_plain($set->title);

  }

  // Only administrators can add shortcut sets.

  $add_access = user_access('administer shortcuts');

  if ($add_access) {

    $options['new'] = t('New set');

  }

  if (count($options) > 1) {

    $form['account'] = array(

      '#type' => 'value',

      '#value' => $account,

    );

    $form['set'] = array(

      '#type' => 'radios',

      '#title' => $user->uid == $account->uid ? t('Choose a set of shortcuts to use') : t('Choose a set of shortcuts for this user'),

      '#options' => $options,

      '#default_value' => $current_set->set_name,

    );

    $form['new'] = array(

      '#type' => 'textfield',

      '#title' => t('Name'),

      '#title_display' => 'invisible',

      '#description' => t('The new set is created by copying items from your default shortcut set.'),

      '#access' => $add_access,

    );

    if ($user->uid != $account->uid) {

      $default_set = shortcut_default_set($account);

      $form['new']['#description'] = t('The new set is created by copying items from the %default set.', array('%default' => $default_set->title));

    }

    $form['#attached'] = array(

      'css' => array(drupal_get_path('module', 'shortcut') . '/shortcut.admin.css'),

      'js' => array(drupal_get_path('module', 'shortcut') . '/shortcut.admin.js'),

    );

    $form['actions'] = array('#type' => 'actions');

    $form['actions']['submit'] = array(

      '#type' => 'submit',

      '#value' => t('Change set'),

    );

  }

  else {

    // There is only 1 option, so output a message in the $form array.

    $form['info'] = array(

      '#markup' => '<p>' . t('You are currently using the %set-name shortcut set.', array('%set-name' => $current_set->title)) . '</p>',

    );

  }

  return $form;

}

/**

 * Validation handler for shortcut_set_switch().

 */

function shortcut_set_switch_validate($form, &$form_state) {

  if ($form_state['values']['set'] == 'new') {

    // Check to prevent creating a shortcut set with an empty title.

    if (trim($form_state['values']['new']) == '') {

      form_set_error('new', t('The new set name is required.'));

    }

    // Check to prevent a duplicate title.

    if (shortcut_set_title_exists($form_state['values']['new'])) {

      form_set_error('new', t('The shortcut set %name already exists. Choose another name.', array('%name' => $form_state['values']['new'])));

    }

  }

}

/**

 * Submit handler for shortcut_set_switch().

 */

function shortcut_set_switch_submit($form, &$form_state) {

  global $user;

  $account = $form_state['values']['account'];

  if ($form_state['values']['set'] == 'new') {

    // Save a new shortcut set with links copied from the user's default set.

    $default_set = shortcut_default_set($account);

    $set = (object) array(

      'title' => $form_state['values']['new'],

      'links' => menu_links_clone($default_set->links),

    );

    shortcut_set_save($set);

    $replacements = array(

      '%user' => $account->name,

      '%set_name' => $set->title,

      '@switch-url' => url(current_path()),

    );

    if ($account->uid == $user->uid) {

      // Only administrators can create new shortcut sets, so we know they have

      // access to switch back.

      drupal_set_message(t('You are now using the new %set_name shortcut set. You can edit it from this page or <a href="@switch-url">switch back to a different one.</a>', $replacements));

    }

    else {

      drupal_set_message(t('%user is now using a new shortcut set called %set_name. You can edit it from this page.', $replacements));

    }

    $form_state['redirect'] = 'admin/config/user-interface/shortcut/' . $set->set_name;

  }

  else {

    // Switch to a different shortcut set.

    $set = shortcut_set_load($form_state['values']['set']);

    $replacements = array(

      '%user' => $account->name,

      '%set_name' => $set->title,

    );

    drupal_set_message($account->uid == $user->uid ? t('You are now using the %set_name shortcut set.', $replacements) : t('%user is now using the %set_name shortcut set.', $replacements));

  }

  // Assign the shortcut set to the provided user account.

  shortcut_set_assign_user($set, $account);

}

/**

 * Menu page callback: builds the page for administering shortcut sets.

 */

function shortcut_set_admin() {

  $shortcut_sets = shortcut_sets();

  $header = array(t('Name'), array('data' => t('Operations'), 'colspan' => 4));

  $rows = array();

  foreach ($shortcut_sets as $set) {

    $row = array(

      check_plain($set->title),

      l(t('list links'), "admin/config/user-interface/shortcut/$set->set_name"),

      l(t('edit set name'), "admin/config/user-interface/shortcut/$set->set_name/edit"),

    );

    if (shortcut_set_delete_access($set)) {

      $row[] = l(t('delete set'), "admin/config/user-interface/shortcut/$set->set_name/delete");

    }

    else {

      $row[] = '';

    }

    $rows[] = $row;

  }

  return theme('table', array('header' => $header, 'rows' => $rows));

}

/**

 * Form callback: builds the form for adding a shortcut set.

 *

 * @param $form

 *   An associative array containing the structure of the form.

 * @param $form_state

 *   An associative array containing the current state of the form.

 *

 * @return

 *   An array representing the form definition.

 *

 * @ingroup forms

 * @see shortcut_set_add_form_validate()

 * @see shortcut_set_add_form_submit()

 */

function shortcut_set_add_form($form, &$form_state) {

  $form['new'] = array(

    '#type' => 'textfield',

    '#title' => t('Set name'),

    '#description' => t('The new set is created by copying items from your default shortcut set.'),

    '#required' => TRUE,

  );

  $form['actions'] = array('#type' => 'actions');

  $form['actions']['submit'] = array(

    '#type' => 'submit',

    '#value' => t('Create new set'),

  );

  return $form;

}

/**

 * Validation handler for shortcut_set_add_form().

 */

function shortcut_set_add_form_validate($form, &$form_state) {

  // Check to prevent a duplicate title.

  if (shortcut_set_title_exists($form_state['values']['new'])) {

    form_set_error('new', t('The shortcut set %name already exists. Choose another name.', array('%name' => $form_state['values']['new'])));

  }

}

/**

 * Submit handler for shortcut_set_add_form().

 */

function shortcut_set_add_form_submit($form, &$form_state) {

  // Save a new shortcut set with links copied from the user's default set.

  $default_set = shortcut_default_set();

  $set = (object) array(

    'title' => $form_state['values']['new'],

    'links' => menu_links_clone($default_set->links),

  );

  shortcut_set_save($set);

  drupal_set_message(t('The %set_name shortcut set has been created. You can edit it from this page.', array('%set_name' => $set->title)));

  $form_state['redirect'] = 'admin/config/user-interface/shortcut/' . $set->set_name;

}

/**

 * Form callback: builds the form for customizing shortcut sets.

 *

 * @param $form

 *   An associative array containing the structure of the form.

 * @param $form_state

 *   An associative array containing the current state of the form.

 * @param $shortcut_set

 *   An object representing the shortcut set which is being edited.

 *

 * @return

 *   An array representing the form definition.

 *

 * @ingroup forms

 * @see shortcut_set_customize_submit()

 */

function shortcut_set_customize($form, &$form_state, $shortcut_set) {

  $form['#shortcut_set_name'] = $shortcut_set->set_name;

  $form['shortcuts'] = array(

    '#tree' => TRUE,

    '#weight' => -20,

    'enabled' => array(),

    'disabled' => array(),

  );

  foreach ($shortcut_set->links as $link) {

    $mlid = $link['mlid'];

    $status = $link['hidden'] ? 'disabled' : 'enabled';

    $form['shortcuts'][$status][$mlid]['name']['#markup'] = l($link['link_title'], $link['link_path']);

    $form['shortcuts'][$status][$mlid]['weight'] = array(

      '#type' => 'weight',

      '#title' => t('Weight'),

      '#delta' => 50,

      '#default_value' => $link['weight'],

      '#attributes' => array('class' => array('shortcut-weight')),

    );

    $form['shortcuts'][$status][$mlid]['status'] = array(

      '#type' => 'select',

      '#title' => t('Status'),

      '#options' => array('disabled' => t('Disabled'), 'enabled' => t('Enabled')),

      '#default_value' => $status,

      '#attributes' => array('class' => array('shortcut-status-select')),

    );

    $form['shortcuts'][$status][$mlid]['edit']['#markup'] = l(t('edit'), 'admin/config/user-interface/shortcut/link/' . $mlid);

    $form['shortcuts'][$status][$mlid]['delete']['#markup'] = l(t('delete'), 'admin/config/user-interface/shortcut/link/' . $mlid . '/delete');

  }

  $form['#attached'] = array(

    'css' => array(drupal_get_path('module', 'shortcut') . '/shortcut.admin.css'),

    'js' => array(drupal_get_path('module', 'shortcut') . '/shortcut.admin.js'),

  );

  $form['actions'] = array(

    '#type' => 'actions',

    '#access' => !empty($shortcut_set->links),

  );

  $form['actions']['submit'] = array(

    '#type' => 'submit',

    '#value' => t('Save changes'),

  );

  return $form;

}

/**

 * Submit handler for shortcut_set_customize().

 */

function shortcut_set_customize_submit($form, &$form_state) {

  foreach ($form_state['values']['shortcuts'] as $group => $links) {

    foreach ($links as $mlid => $data) {

      $link = menu_link_load($mlid);

      $link['hidden'] = $data['status'] == 'enabled' ? 0 : 1;

      $link['weight'] = $data['weight'];

      menu_link_save($link);

    }

  }

  drupal_set_message(t('The shortcut set has been updated.'));

}

/**

 * Returns HTML for a shortcut set customization form.

 *

 * @param $variables

 *   An associative array containing:

 *   - form: A render element representing the form.

 *

 * @see shortcut_set_customize()

 * @ingroup themeable

 */

function theme_shortcut_set_customize($variables) {

  $form = $variables['form'];

  $map = array('disabled' => t('Disabled'), 'enabled' => t('Enabled'));

  $shortcuts_by_status = array(

    'enabled' => element_children($form['shortcuts']['enabled']),

    'disabled' => element_children($form['shortcuts']['disabled']),

  );

  // Do not add any rows to the table if there are no shortcuts to display.

  $statuses = empty($shortcuts_by_status['enabled']) && empty($shortcuts_by_status['disabled']) ? array() : array_keys($shortcuts_by_status);

  $rows = array();

  foreach ($statuses as $status) {

    drupal_add_tabledrag('shortcuts', 'match', 'sibling', 'shortcut-status-select');

    drupal_add_tabledrag('shortcuts', 'order', 'sibling', 'shortcut-weight');

    $rows[] = array(

      'data' => array(array(

        'colspan' => 5,

        'data' => '<strong>' . $map[$status] . '</strong>',

      )),

      'class' => array('shortcut-status', 'shortcut-status-' . $status),

    );

    foreach ($shortcuts_by_status[$status] as $key) {

      $shortcut = &$form['shortcuts'][$status][$key];

      $row = array();

      $row[] = drupal_render($shortcut['name']);

      $row[] = drupal_render($shortcut['weight']);

      $row[] = drupal_render($shortcut['status']);

      $row[] = drupal_render($shortcut['edit']);

      $row[] = drupal_render($shortcut['delete']);

      $rows[] = array(

        'data' => $row,

        'class' => array('draggable'),

      );

    }

    if ($status == 'enabled') {

      for ($i = 0; $i < shortcut_max_slots(); $i++) {

        $rows['empty-' . $i] = array(

          'data' => array(array(

            'colspan' => 5,

            'data' => '<em>' . t('Empty') . '</em>',

          )),

          'class' => array('shortcut-slot-empty'),

        );

      }

      $count_shortcuts = count($shortcuts_by_status[$status]);

      if (!empty($count_shortcuts)) {

        for ($i = 0; $i < min($count_shortcuts, shortcut_max_slots()); $i++) {

          $rows['empty-' . $i]['class'][] = 'shortcut-slot-hidden';

        }

      }

    }

  }

  $header = array(t('Name'), t('Weight'), t('Status'), array('data' => t('Operations'), 'colspan' => 2));

  $output = theme('table', array('header' => $header, 'rows' => $rows, 'attributes' => array('id' => 'shortcuts'), 'empty' => t('No shortcuts available. <a href="@link">Add a shortcut</a>.', array('@link' => url('admin/config/user-interface/shortcut/' . $form['#shortcut_set_name'] . '/add-link')))));

  $output .= drupal_render($form['actions']);

  $output = drupal_render_children($form) . $output;

  return $output;

}

/**

 * Form callback: builds the form for adding a new shortcut link.

 *

 * @param $form

 *   An associative array containing the structure of the form.