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<?php
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// $Id$
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/**
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* @file video_upload.browser.inc
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* Provides functions for the Browser upload method.
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* @todo (Works for 5.x, but not yet in 6.x)
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*/
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/**
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* Prepare form for the browser upload method (video transmitted
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* directly to 3rd party from the browser).
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*/
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function _video_upload_browser_method_widget(&$form, &$form_state, $field, $items, $delta) {
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// set form class (the jquery depends on this), and encoding type
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$form['#attributes'] = array(
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'class' => 'video-upload',
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'enctype' => 'multipart/form-data',
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);
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$element = _video_upload_browser_widget_form($form['#node'], $field, $items);
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return $element;
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switch ($op) {
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case 'prepare form values' :
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_video_upload_widget_browser_prepare_form_values($node, $field, $items);
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break;
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case 'process form values':
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_video_upload_widget_browser_process_form_values($node, $field, $items);
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break;
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case 'form' :
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return _video_upload_browser_widget_form($node, $field, $items);
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case 'validate' :
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// this doesn't work yet
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_video_upload_browser_widget_validate($node, $field, $items);
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break;
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case 'submit' :
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break;
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case 'default value' :
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return array(
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array(
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'id' => '0',
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'status' => VIDEO_UPLOAD_STATUS_UNKNOWN,
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'status_ts' => '',
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'fid' => '',
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// @todo see other inline delete todo items
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// 'delete' => 0,
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),
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);
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break;
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}
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return;
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}
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/**
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* Depending on if $node_field contains a YouTube ID or not, the form returned
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* will be drastically different.
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* @param boolean $save
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* This is only passed when rendering the form from
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*/
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function _video_upload_browser_widget_form(&$node, $field, &$items) {
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$field_name = $field['field_name'];
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// this will be set to false if a video already exists on the field,
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// and multiple uploads aren't allowed.
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$generate_upload_form = true;
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$form[$field_name] = array(
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'#type' => 'fieldset',
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'#title' => t($field['widget']['label']),
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'#weight' => $field['widget']['weight'],
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'#description' => t('<strong>Note</strong>: Uploaded videos will not be saved until this post has been saved.'),
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'#collapsible' => TRUE,
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'#collapsed' => FALSE,
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'#tree' => TRUE,
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'#prefix' => '<div id="'. form_clean_id($field_name . '-attach-wrapper') . '" >',
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'#suffix' => '</div>',
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);
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$form[$field_name][0]['id'] = array(
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'#type' => 'hidden',
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'#value' => $items[0]['id'],
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);
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// Attempt a preview (won't show much on adding) for videos
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// that have an id, and have been confirmed
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if ($items[0]['id']) {
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if ($items[0]['status'] > VIDEO_UPLOAD_STATUS_UNKNOWN) {
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$form[$field_name][0]['preview'] = array(
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'#type' => 'markup',
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'#value' => theme('video_upload_video', $items[0]['id'], $field['widget']['display']['small_width'], $field['widget']['display']['small_height']),
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'#suffix' => t('Use the form below to replace this video with a different one.'),
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);
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}
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elseif ($items[0]['status'] === VIDEO_UPLOAD_STATUS_UNKNOWN) {
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$form[$field_name][0]['preview'] = array(
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'#type' => 'markup',
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'#value' => '<div class="messages">' . t('Video is processing...') . '</div>',
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);
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}
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// @todo make this work (see todo in form processing step for
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// some initial work
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// $form[$field_name][0]['delete'] = array(
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// '#type' => 'checkbox',
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// '#title' => t('Delete video ID %id from YouTube', array('%id' => $items[0]['id'])),
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// );
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}
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// include Drupal js for dynamic upload handling
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// drupal_add_js('misc/progress.js');
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// drupal_add_js('misc/upload.js');
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drupal_add_js(drupal_get_path('module', 'video_upload') . '/video_upload.js');
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$form[$field_name]['new'] = array(
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'#tree' => FALSE,
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'#prefix' => '<div id="' . form_clean_id($field_name .'-attach-hide') . '">',
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'#suffix' => '</div>',
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'#weight' => 100,
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);
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// youtube expects the POST variable to be named "file"
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if (!empty($field['widget']['file_extensions'])) {
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$allowed_extensions = t('<br />Allowed file types: <strong>@types</strong>', array('@types' => $field['widget']['file_extensions']));
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// format for accept attribute below, the attribute gets used
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// by video_upload.js as a regex pattern, thus the '|' separator
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$allowed_types = implode('|', array_filter(explode(' ', $field['widget']['file_extensions'])));
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}
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// overwrite warning
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if (!$field['multiple'] && $items[0]['id']) {
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$overwrite_warning = t('<strong>WARNING</strong>: Uploading another video will overwrite the above video (and be rejected if it is a duplicate).');
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// @todo the delete widget must work first
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// $generate_upload_form = FALSE;
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}
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// If the browser upload method is being used, we construct an upload form
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// to YouTube
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if ($generate_upload_form && $field['widget']['use_browser_upload_method']) {
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drupal_add_js(drupal_get_path('module', 'video_upload') . '/video_upload_browser.js');
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// authenticate to youtube
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if ($http_client = _video_upload_authenticate_youtube()) {
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// The following is taken and modified from
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// http://code.google.com/apis/youtube/developers_guide_php.html
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// @todo perhaps store in SESSION...perhaps not
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$yt = _video_upload_youtube($http_client);
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// create a Zend_Gdata_YouTube_VideoEntry
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$video = _video_upload_video_entry();
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// set up media group
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_video_upload_construct_media_group($yt, $video, $node, $field);
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$token_array = _video_upload_get_token_array($yt, $video);
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// Set action to YouTube @todo this will need to be done in order for
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// this to work w/o js enabled and then have the js re-construct the
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// action back to this site
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// $form['#action'] = url($token_array['url'], 'nexturl=' . _video_upload_get_next_url());
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if ($token_array) {
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// Set youtube as the upload destination, which will then redirect to
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// the js callback url. The dynamic behavior is triggered by setting
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// the class to "upload"
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// token
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$form[$field_name]['new']['token'] = array(
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'#type' => 'hidden',
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// YouTube requires the name to be 'token'
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'#name' => 'token',
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'#value' => $token_array['token'],
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);
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// this gets changed, as YouTube redirects to the video_upload ajax
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// handler
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$ajax_form_submit_url = url($token_array['url'], array('query' => 'nexturl=' . urlencode(_video_upload_get_next_url($field_name, $node))));
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}
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else {
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// can't generate upload form w/o a token
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$generate_upload_form = false;
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$auth_error = true;
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watchdog('video_upload', t('Authentication to YouTube succeeded, but failed to generate a token'), WATCHDOG_ERROR);
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}
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}
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else {
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// auth error will provide a warning
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$auth_error = true;
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$generate_upload_form = false;
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}
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if ($auth_error) {
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$form[$field_name]['holder'] = array(
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'#type' => 'markup',
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'#value' => t('Video Uploads currently unavailable. Please try back soon'),
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);
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}
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}
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elseif ($generate_upload_form) {
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// The Direct Upload method transfers the file here first
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// Submission to YouTube is handled later, send file here
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$ajax_form_submit_url = _video_upload_get_next_url($field_name, $node);
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foreach ($items as $delta => $item) {
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if ($item['fid']) {
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$form[$field_name][$delta]['fid'] = array(
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'#type' => 'hidden',
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'#value' => $item['fid'],
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);
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}
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}
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}
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if ($generate_upload_form) {
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// Note, youtube requires that this field be called 'file', but the Drupal
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// Form API doesn't work with renaming of this field. Since Browser
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// uploads only work with js enabled, this field is renamed properly
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// client side when the user attempts a YouTube upload.
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$form[$field_name]['new'][$field_name . '_file'] = array(
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'#type' => 'file',
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'#description' => $overwrite_warning . $field['widget']['description'] . $allowed_extensions,
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'#title' => t('File'),
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'#tree' => FALSE,
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'#attributes' => array(
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'class' => 'video-upload-file video-upload video-upload-' . form_clean_id($field_name),
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// browsers tend not to enforce this, but some javascript can
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'accept' => $allowed_types,
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'id' => 'blaz',
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),
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);
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}
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if ($generate_upload_form) {
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// The dynamic behavior of the form is triggered by the 'upload' and
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// 'video-upload-url' classes.
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$form[$field_name .'-attach-url'] = array(
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'#type' => 'hidden',
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'#value' => $ajax_form_submit_url,
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'#attributes' => array('class' => 'upload video-upload-url')
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);
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// button
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$form[$field_name]['new']['submit'] = array(
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'#type' => 'button',
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'#value' => t('Upload Video File'),
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'#id' => form_clean_id($field_name . '-attach-button'),
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'#attributes' => array(
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'class' => 'video-upload video-upload-submit',
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),
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);
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}
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return $form;
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}
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/**
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* Validate a set of items
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*/
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function _video_upload_browser_widget_validate(&$node, $field, &$items) {
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if ($field['required']) {
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if ($field['widget']['use_browser_upload_method']) {
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// if using the browser upload method, we need a YouTube ID
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if (!$items[0]['id']) {
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$error = true;
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}
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}
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else {
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// for the direct upload method, we need a file
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if (!$items[0]['fid']) {
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$error = true;
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}
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}
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if ($error) {
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form_set_error($field['field_name'], t('@field is required. Please select a video and hit the <em>Upload Video File</em> button.', array('@field' => $field['widget']['label'])));
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}
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}
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}
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/**
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* Prepare data for form
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*/
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function _video_upload_browser_widget_prepare_form_values(&$node, $field, &$items) {
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if (!count($_POST)) {
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// start fresh if no post datas
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video_upload_clear_session_data();
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}
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$field_name = $field['field_name'];
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// @fixme - This need to be reviewed. The reason this is required
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// is that the Drupal Form API doesn't allow js to change
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// the values of hidden variables, so it must be done here.
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// Supposedly it is dangerous to do so, thus the need for a
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// review.
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// @fixme - This won't work once multiple items are in play
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if ($_POST[$field_name][0]['id']) {
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$node->{$field_name}[0]['id'] = $_POST[$field_name][0]['id'];
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$items[0]['id'] = $node->{$field_name}[0]['id'];
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}
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// Check for file uploaded to local server
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if ($file = file_check_upload($field_name . '_file')) {
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$valid = _video_upload_widget_validate_video_file($node, $field, $items, $file);
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if ($valid) {
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_video_upload_upload_video_file($node, $field, $items, $file);
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}
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else {
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// @todo delete the invalid image
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}
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}
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}
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/**
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* Convert back to native storage
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*/
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function _video_upload_browser_widget_process_form_values(&$node, $field, &$items) {
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foreach ($items as $delta => $item) {
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if ($item['id'] && !$item['status']) {
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// @todo make this work
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if (false && $item['delete'] && $item['id']) {
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// delete video from youtube
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_video_upload_delete(array($item), $field);
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$item['id'] = '';
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$item['delete'] = 0;
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}
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if ($status = video_upload_youtube_validate($item['id'], $node)) {
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$item['status'] = $status->status;
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$item['status_ts'] = time();
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}
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$items[$delta] = $item;
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}
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}
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}
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/**
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* Get the url that youtube will redirect to
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* @param string $field_name
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* @param object $node
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* @return string
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*/
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function _video_upload_get_next_url($field_name, $node) {
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global $base_url;
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// the field name is passed as part of the path because the YouTube API
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// doesn't handle encoded urls, and submitting a ? in the url doesn't work
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// properly
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return url('video-upload/js/' . $field_name . '/' . $node->type, array('absolute' => TRUE));
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}
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