<?php
// $Id: calendar_plugin_display_page.inc,v 1.19 2011-01-18 00:37:21 karens Exp $

/**
 * @file
 * Views page plugin for the Calendar module.
 */

/**
 * The plugin that handles a full calendar page.
 * 
 * The only style option that will be available is the calendar
 * style, which creates the navigation and links to other calendar
 * displays. All options for paging, row plugins, etc. are
 * deferred to the attachments.
 */
class calendar_plugin_display_page extends views_plugin_display_page {

  function render() {
    if (!empty($this->view->date_info->forbid)) {
      drupal_not_found();
      exit;
    }
   return parent::render();
  }

  /**
   * Display validation.
   */
  function validate() {
    $errors = parent::validate();  

    $arguments = $this->display->handler->get_option('arguments');
    if (!in_array('date_argument', array_keys($arguments))) {
      if (empty($this->view->date_info->arg_missing)) {
        $errors[] = t("The Calendar display '@display_title' will not work without a Date argument.", array('@display_title' => $this->definition['title']));      
      }
      $this->view->date_info->arg_missing = TRUE;
    }
    elseif ($arguments['date_argument']['default_action'] != 'default' || $arguments['date_argument']['default_argument_type'] != 'date') {
      if (empty($this->view->date_info->arg_missing_default)) {
        $errors[] = calendar_errors('missing_argument_default');
      }
      $this->view->date_info->arg_missing_default = TRUE;
    }

    return $errors;
  }

  function get_style_type() { return 'calendar'; }

  function defaultable_sections($section = NULL) {
    if (in_array($section, array('style_plugin', 'row_options', 'row_plugin', 'items_per_page'))) {
      return FALSE;
    }
    return parent::defaultable_sections($section);
  }

  /**
   * Override some of the parent options.
   */
  function options(&$display) {
    parent::options($display);
    $display['displays'] = array();
    $display['style_plugin'] = 'calendar_nav';
    $display['items_per_page'] = 0;
    $display['row_plugin'] = '';
    $display['defaults']['style_plugin'] = FALSE;
    $display['defaults']['style_options'] = FALSE;
    $display['defaults']['row_plugin'] = FALSE;
    $display['defaults']['row_options'] = FALSE;
    $display['defaults']['items_per_page'] = FALSE;
  } 

  /**
   * Add custom option definitions.
   */  
  function option_definition() {
    $options = parent::option_definition();
    $options['calendar_colors'] = array('default' => array());
    $options['calendar_colors_vocabulary'] = array('default' => array());
    $options['calendar_colors_taxonomy'] = array('default' => array());
    $options['calendar_colors_group'] = array('default' => array());
    $options['calendar_popup'] = array('default' => 0);
    $options['calendar_date_link'] = array('default' => '');
    return $options;
  }

  /**
   * Provide the summary for attachment options in the views UI.
   *
   * This output is returned as an array.
   */
  function options_summary(&$categories, &$options) {
    // It is very important to call the parent function here:
    parent::options_summary($categories, $options);

    $variables = array(
      'module' => 'calendar', 
      'topic' => 'settings',
    );
    $categories['calendar_settings'] = array(
      'title' => theme('advanced_help_topic', $variables) . t('Calendar settings'),
    );

    $colors = $this->get_option('calendar_colors');
    $colors_taxonomy = $this->get_option('calendar_colors_taxonomy');
    $options['calendar_colors'] = array(
      'category' => 'calendar_settings',
      'title' => t('Legend Content Types'),
      'value' => t('Edit'),
    );
    $options['calendar_colors_vocabulary'] = array(
      'category' => 'calendar_settings',
      'title' => t('Legend Vocabularies'),
      'value' => t('Edit'),
    );
    $options['calendar_colors_taxonomy'] = array(
      'category' => 'calendar_settings',
      'title' => t('Legend Terms'),
      'value' => t('Edit'),
    );
    if (function_exists('og_all_groups_options')) {
      $colors_group = $this->get_option('calendar_colors_group');
      $options['calendar_colors_group'] = array(
        'category' => 'calendar_settings',
        'title' => t('Legend Groups'),
        'value' => t('Edit'),
      );
    }
    $popup_options = $this->popup_options();
    $default = $this->get_option('calendar_popup');
    $options['calendar_popup'] = array(
      'category' => 'calendar_settings',
      'title' => t('Date changer'),
      'value' => isset($default) ? $popup_options[$default] : $popup_options[0],
    );
    $default = $this->get_option('calendar_date_link');
    $options['calendar_date_link'] = array(
      'category' => 'calendar_settings',
      'title' => t('Add new date link'),
      'value' => !empty($default) ? check_plain(node_type_get_name($default)) : t('None'),
    );

  }

  function popup_options() {
    return array(0 => t('No'), 1 => t('Yes'));
  }

  /**
   * @TODO Figure out how to get the colorpicker working in D7.
   */ 
  function options_form(&$form, &$form_state) {
    // It is very important to call the parent function here:
    parent::options_form($form, $form_state);

    switch ($form_state['section']) {
      case 'calendar_popup':
        $form['#title'] .= t('Date changer');
        $form['calendar_popup'] = array(
          '#type' => 'radios',
          '#default_value' => $this->get_option('calendar_popup'),
          '#options' => $this->popup_options(),
          '#description' => t('Display a popup calendar date selector?'),
          );        
        break;

      case 'calendar_date_link':
        $form['#title'] .= t('Add new date link');
        $form['calendar_date_link'] = array(
          '#type' => 'radios',
          '#default_value' => $this->get_option('calendar_date_link'),
          '#options' => array('' => t('No link')) + node_type_get_names(),
          '#description' => t('Display a link to add a new date of the specified content type. Displayed only to users with appropriate permissions.'),
          );        
        break;

      case 'calendar_colors':
        $method =  'types';
        // TODO Move the embedded styles other than the color into a stylesheet.
        $form['#title'] .= t('Content Type Legend Colors');
        $form['calendar_colors']['#tree'] = TRUE;
        $form['calendar_colors']['#prefix'] = '<div class="form-item"><label>' . t('Content Type') . '</label><p>' . t('Set a hex color value (like #ffffff) to use in the calendar legend for each content type. Types with empty values will have no stripe in the calendar and will not be added to the legend.') . '</p></div>';

        $colors = $this->get_option('calendar_colors');   

        switch ($method) {
          case 'types':
            $color_types = node_type_get_names();
            break;
        }
        foreach ($color_types as $key => $name) {
          $form['calendar_colors']['color'][$key] = array(
            '#title' => $name,
            '#type' => 'textfield',
            '#default_value' => isset($colors[$key]) ? $colors[$key] : '#ffffff',
            '#size' => 7,
            '#maxlength' => 7,
          );
        }
        break;

      case 'calendar_colors_vocabulary':
        $taxonomies = taxonomy_get_vocabularies();
        $options = array();
        foreach ($taxonomies as $vid => $vocab) {
          $options[$vid] = $vocab->name;
        }
        $colors_vocabulary = $this->get_option('calendar_colors_vocabulary');
        $form['#title'] .= t('Vocabulary Legend Types');
        $form['calendar_colors_vocabulary'] = array(
          '#type' => 'checkboxes',
          '#default_value' => isset($colors_vocabulary) ? $colors_vocabulary : array(),
          '#multiple' => TRUE,
          '#options' => $options,
          );
        $form['calendar_colors_vocabulary']['#prefix'] = '<div class="form-item"><label>' . t('Vocabularies') . '</label>' . t('Select vocabularies to use for setting calendar legend colors by taxonomy term. This works best for vocabularies with only a limited number of possible terms.') .'</div>';
        break;

      case 'calendar_colors_taxonomy':
        $taxonomies = (array) $this->get_option('calendar_colors_vocabulary');
        $colors_taxonomy = $this->get_option('calendar_colors_taxonomy');
        $form['#title'] .= t('Taxonomy Legend Colors');
        $form['calendar_colors_taxonomy']['#prefix'] = '';
        if (empty($taxonomies)) {
          $form['calendar_colors_taxonomy']['#prefix'] .= '<div class="form-item warning">' . t('Please select Legend vocabularies first!') .'</div>';
        }
        $form['calendar_colors_taxonomy']['#prefix'] .= '<div class="form-item"><label>' . t('Taxonomy Terms') . '</label><p>' . t('Set a hex color value (like #ffffff) to use in the calendar legend for each taxonomy term. Terms with empty values will have no stripe in the calendar and will not be added to the legend. <strong>IMPORTANT!</strong>You must add the taxonomy field, Taxonomy: Term ID, to the view for this to do anything. You can exclude it from output if you do not want to see it in the view, but the field must be included.') . '</p></div>';
        $form['calendar_colors_taxonomy']['#tree'] = TRUE;

        $colors = $this->get_option('calendar_colors'); 

        foreach ($taxonomies as $vid => $taxonomy) {
          $vocab = taxonomy_get_tree($vid);
          foreach ($vocab as $tid => $term) {
            $form['calendar_colors_taxonomy']['color'][$term->tid] = array(
              '#title' => t($term->name),
              '#type' => 'textfield',
              '#default_value' => isset($colors_taxonomy[$term->tid]) ? $colors_taxonomy[$term->tid] : '#ffffff',
              '#size' => 7,
              '#maxlength' => 7,
            );
          }
        }
        break;

      case 'calendar_colors_group':
        $colors_group = $this->get_option('calendar_colors_group');
        $form['#title'] .= t('Group Legend Colors');
        $form['calendar_colors_group']['#prefix'] = '';
        $form['calendar_colors_group']['#prefix'] .= '<div class="form-item"><label>' . t('Group') . '</label><p>' . t('Set a hex color value (like #ffffff) to use in the calendar legend for each group. Groups with empty values will have no stripe in the calendar and will not be added to the legend.') .'</p></div>';
        $form['calendar_colors_group']['#tree'] = TRUE;
        $form['calendar_colors_group']['colorpicker'] = array(
          '#type' => 'calendar_colorpicker',
          '#prefix' => '<div class="clear-block"><div style="float:left">',
          '#suffix' => '</div>',
        );
        $groups = og_all_groups_options();
        foreach ($groups as $gid => $group_name){
          $form['calendar_colors_group']['color'][$gid] = array(
	          '#title' => t($group_name),
	          '#type' => 'calendar_colorfield',
	          '#default_value' => isset($colors_group[$gid]) ? $colors_group[$gid] : '#ffffff',
	          '#calendar_colorpicker' => 'calendar-colors-group-colorpicker',
	          '#prefix' => '<div style="float:left;margin-right:10px">',
	          '#suffix' => '</div>',
	          );
	      }
	      $form['calendar_colors_group']['color']['#suffix'] = '</div>';
        break;
    }
  }

 /**
   * Perform any necessary changes to the form values prior to storage.
   * There is no need for this function to actually store the data.
   */
  function options_submit(&$form, &$form_state) {
    // It is very important to call the parent function here:
    parent::options_submit($form, $form_state);
    switch ($form_state['section']) {
      case 'calendar_popup':
        $this->set_option($form_state['section'], $form_state['values'][$form_state['section']]['popup']);
        break;
      case 'calendar_colors':
      case 'calendar_colors_taxonomy':
      case 'calendar_colors_group':
        $this->set_option($form_state['section'], $form_state['values'][$form_state['section']]['color']);
        break;
      case 'calendar_colors_vocabulary':
        $this->set_option($form_state['section'], array_filter($form_state['values'][$form_state['section']]));
        break;
      case 'calendar_date_link':
        $this->set_option($form_state['section'], ($form_state['values'][$form_state['section']]));
        variable_set('calendar_date_link_'. $form_state['values']['calendar_date_link'], $this->display->handler->get_option('path'));
        break;
    }
  }  

}