<?php
// $Id: cmis_browser.module,v 1.5 2010-01-07 10:06:15 cbalan Exp $

/**
 * Implementation of hook_menu().
 * 
 */
function cmis_browser_menu() {
  $items = array();
  $items['cmis/browser'] = array(
    'type' => MENU_NORMAL_ITEM,
    'title' => t('CMIS Repository'),
    'page callback' => 'cmis_browser_content_get', 
    'access callback' => 'user_access', 
    'access arguments' => array('access cmis'),
    'file' => 'cmis_browser.content_get.inc'
  );
  
  $items['cmis/delete'] = array(
    'type' => MENU_CALLBACK,
    'page callback' => 'drupal_get_form',
    'page arguments' => array('cmis_browser_content_delete_confirm'),  
    'access callback' => 'user_access',
    'access arguments' => array('delete cmis'),
    'file' => 'cmis_browser.content_delete.inc'    
  );
  
  $items['cmis/properties'] = array(
    'type' => MENU_CALLBACK,
    'page callback' => 'cmis_browser_content_properties',
    'access callback' => 'user_access',
    'access arguments' => array('access cmis'),
    'file' => 'cmis_browser.content_properties.inc'    
  );
  
  $items['cmis/autocomplete'] = array(
    'title' => t('cmis path autocomplete'), 
    'page callback' => 'cmis_browser_autocomplete', 
    'access callback' => 'user_access', 
    'access arguments' => array('access cmis'), 
    'type' => MENU_CALLBACK,
    'file' => 'cmis_browser.content_autocomplete.inc'
  );
  
  $items['cmis/block_settings_more_items_js'] = array(
    'page callback' => 'cmis_browser_block_settings_more_items_js',
    'access arguments' => array('access content'),
    'type' => MENU_CALLBACK,
    'file' => 'cmis_browser.content_block.inc'
  );
  
  return $items;
}

/**
 * Register custom themes for cmis_browser module.
 * 
 */
function cmis_browser_theme() {
  return array(
    'cmis_browser' => array(
      'arguments' => array('context' => NULL),
      'file' => 'cmis_browser.theme.inc'
    ),
    'cmis_browser_browse_form' => array(
      'arguments' => array('form' => NULL),
      'file' => 'cmis_browser.theme.inc'
    ),
    'cmis_browser_browse_children' => array(
      'arguments' => array('context' => NULL),
      'file' => 'cmis_browser.theme.inc'
    ),
    'cmis_browser_browse_breadcrumb' => array(
      'arguments' => array('bcarray' => NULL),
      'file' => 'cmis_browser.theme.inc'
    ),
    'cmis_browser_doc_view' => array(
  	  'arguments' => array('cmis_object_path'),
	  'file' => 'cmis_browser.theme.inc'
	),
    'cmis_browser_content_properties' => array(
      'arguments' => array('cmis_object' => NULL),
      'file' => 'cmis_browser.theme.inc'
    )
  );
}
  
/**
 * Implementation of hook_form().
 * 
 */
function cmis_browser_browse_form($form_state) {
  $parts = explode('/', $_GET['q']);
  $path = implode('/', array_slice($parts, 2));

  $form['browse']['path'] = array(
    '#type' => 'textfield',
    '#title' => t('Path'), 
    '#default_value' => '/'.  $path, 
    '#autocomplete_path' => 'cmis/autocomplete', 
    '#size' => 50);

  $form['browse']['submit'] = array(
    '#type' => 'submit',
    '#name' => 'browse',
    '#default_value' => 'Browse',
  );
    
  return $form;
}

/**
 * Implementation of hook_form_submit
 * 
 */
function cmis_browser_browse_form_submit($form, & $form_state) {  
  unset($form_state['storage']);
  $form_state['redirect'] = 'cmis/browser'. $form_state['values']['path'];;
}

/**
 * Implementation of hook_form()
 * 
 */
function cmis_browser_actions_form($form_state) {
  $form['#attributes']['enctype'] = 'multipart/form-data';
  $form['actions'] = array( 
    '#type' => 'fieldset',
    '#title' => t('Actions'), 
    '#collapsible' => TRUE, '#collapsed' => TRUE
  );
  
    $form['actions']['folder_create'] = array( 
    '#type' => 'fieldset',
    '#title' => t('Create folder'), 
    '#collapsible' => TRUE, '#collapsed' => TRUE
  );
  
  $form['actions']['folder_create']['folder_name'] = array( 
    '#type' => 'textfield',
    '#title' => t('Folder name') 
  );
  
  $form['actions']['folder_create']['folder_create_button'] = array( 
    '#type' => 'submit',
    '#name' => 'folder_create_action',
    '#value' => t('Create new folder') 
  );
  
  $form['actions']['content_create'] = array( 
    '#type' => 'fieldset',
    '#title' => t('Create content'), 
    '#collapsible' => TRUE, '#collapsed' => TRUE
  );
  
  $form['actions']['content_create']['content_name'] = array(
    '#type' => 'textfield',
    '#title' => t('Name'),
    '#size' => 70
  );

  $form['actions']['content_create']['content_body'] = array(
    '#type' => 'textarea',
    '#title' => t('Content')
  );

  $form['actions']['content_create']['content_create_button'] = array(
    '#type' => 'submit',
    '#name' => 'content_create_action',
    '#default_value' => 'Create'
  );
 
  $form['actions']['content_upload'] = array( 
    '#type' => 'fieldset',
    '#title' => t('Upload content'), 
    '#collapsible' => TRUE, '#collapsed' => TRUE
  );
  
  $form['actions']['content_upload']['file'] = array( 
    '#type' => 'file',
    '#title' => t('Local file') 
  );
  
  $form['actions']['content_upload']['content_upload_button'] = array( 
    '#type' => 'submit',
    '#name' => 'content_upload_action',
    '#value' => t('Upload') 
  ); 
  
  return $form;
}

/**
 * Implementation of hook_form_submit().
 * 
 */
function cmis_browser_actions_form_submit($form, & $form_state) {  
  module_load_include('content_create.inc', 'cmis_browser');
  $path = '/' . implode('/', array_slice(explode('/', $_GET['q']), 2));
  
  switch($form_state['clicked_button']['#name']) {
    case 'folder_create_action':
      _cmis_browser_actions_folder_create($path, $form_state['values']['folder_name']);
      break;  
    case 'content_create_action':
      _cmis_browser_actions_content_create(drupal_urlencode($path), $form_state['values']['content_name'], $form_state['values']['content_body'], 'text/html');
      break;
    case 'content_upload_action':
      // @todo cleanup uploaded file
      $file = file_save_upload('file');
      if ($file) {
        _cmis_browser_actions_content_create(drupal_urlencode($path), $file->filename, file_get_contents($file->filepath), $file->filemime);
      }
      else {
        form_set_error('content_upload', t('Unable to handle uploaded file.'));
      }
      break;  
  }
}

/**
 * Implementation of hook_block() for CMIS content module.
 * 
 */
function cmis_browser_block($op = 'list', $delta = 0, $edit = array()) {
  module_load_include('content_block.inc', 'cmis_browser');
  
  switch ($op) {
    case 'list':
      // If $op is "list", we just need to return a list of block descriptions.
      // This is used to provide a list of possible blocks to the administrator,
      // end users will not see these descriptions.
      $blocks[0] = array(
        'info' => t('CMIS Repository Document View'),
      );

      return $blocks;

    case 'configure':
      // If $op is "configure", we need to provide the administrator with a
      // configuration form. The $delta parameter tells us which block is being
      // configured. In this example, we'll allow the administrator to customize
      // the text of the first block.
      $form = array(
        '#cache' => TRUE,
      );
      
      if ($delta == 0) {
        // All we need to provide is a text field, Drupal will take care of
        // the other block configuration options and the save button.
        $form['cmis_target_document_items'] = array(
          '#tree' => TRUE,
          '#prefix' => '<div class="clear-block" id="cmis-content-items-wrapper">',
          '#suffix' => '</div>'
        );
      
        $cmis_block_items = variable_get('cmis_target_document_items', array_fill(0, 2, '/'));
        // Making sure that there is at least one item
        $cmis_block_items += count($cmis_block_items) == 0?array('/'):array();
      
        foreach ($cmis_block_items as $key => $item) {
          $form['cmis_target_document_items'][] = _cmis_browser_block_settings_path_form($key, $item);
        }
      
        $form['cmis_target_document_items_more'] = array(
          '#type' => 'submit',
          '#value' => t('Add more'),
          '#description' => t("If the amount of boxes above isn't enough, click here to add more."),
          '#weight' => 1,
          '#ahah' => array(
            'path' => 'cmis/block_settings_more_items_js',
            'wrapper' => 'cmis-content-items-wrapper',
            'method' => 'replace',
            'effect' => 'fade',
          )
        );
      }
    
      return $form;
    case 'save':
      // If $op is "save", we need to save settings from the configuration form.
      // Since the first block is the only one that allows configuration, we
      // need to check $delta to make sure we only save it.
      if ($delta == 0) {
        $cmis_block_items = $edit['cmis_target_document_items'];
      
        // Removing empty items
        foreach ($cmis_block_items as $key => $cmis_block_item) {
          if (empty($cmis_block_item) || $cmis_block_item=='/') {
            unset($cmis_block_items[$key]);
          }
        }
    
        // Save configuration in `cmis_target_document_items` var
        variable_set('cmis_target_document_items', array_values($cmis_block_items));
      }
      return;
    case 'view': 
    default:
      // If $op is "view", then we need to generate the block for display
      // purposes. The $delta parameter tells us which block is being requested.
      switch ($delta) {
        case 0:
          // The subject is displayed at the top of the block. Note that it
          // should be passed through t() for translation.
          $block['subject'] = t('Documents');
          // The content of the block is typically generated by calling a custom
          // function.
          $block['content'] = cmis_browser_block_content(0, variable_get('cmis_target_document_items', array()));
          break;
      }
      return $block;
  }
}

/**
 * Display CMIS document list based on the path configurations.
 * 
 */
function cmis_browser_block_content($which_block, $items = array() ) {
  if (0 == $which_block) {
    $content = array();
    foreach ($items as $item) {
      if ($item != '/') {
        $content[] = theme('cmis_browser_doc_view', $item);
      }
    }
    return implode('<br />', $content);
  }
}