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<?php
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// $Id: transcription.module,v 1.9 2008/11/19 17:14:37 grndlvl Exp $
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// Initial code by Jonathan DeLaigle (grndlvl).
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// Modified by Aaron Winborn for the Media Transcriptions module.
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/**
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* @file
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* Gives ability to create snippets of text with time markers for multimedia transcriptions and closed captioning.
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*/
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/**
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* Implementation of hook_menu().
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*/
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function transcription_menu($maycache) {
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$items = array();
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if (!$maycache) {
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if (arg(0) == 'node' && is_numeric(arg(1)) && arg(2) == 'transcription' && !is_null(arg(3))) {
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$node = node_load(arg(1));
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if ($node->nid) {
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$items[] = array('path' => 'node/'. arg(1) .'/transcription/'. arg(3), 'title' => t('Transcription'),
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'callback' => 'transcription_handler',
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'callback arguments' => array($node, arg(3)),
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'access' => node_access('view', $node),
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'type' => MENU_CALLBACK);
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}
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}
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}
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return $items;
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}
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/*******************************************
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* BEGIN Transcription handlers (TESTING)
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******************************************/
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function transcription_handler($node, $type) {
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$fields = content_fields($field_name = NULL, $node->type);
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foreach ($fields as $field_name => $field_info) {
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if ($field_info['type'] == 'transcription') {
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$transcription_field = $node->$field_name;
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break;
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}
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}
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if (!empty($transcription_field)) {
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$handlers = module_invoke_all('transcription_type', $type, $transcription_field, $node);
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if (empty($handlers[$type])) {
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$default_handler = transcription_default_type($type, $transcription_field, $node);
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$output = $default_handler[$type];
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}
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else {
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$output = $handlers[$type];
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}
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print $output;
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exit;
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}
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return t('There are no transcription fields assigned to this node.');
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}
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function transcription_default_type($type, $transcriptions, $node) {
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switch ($type) {
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case 'jwplayer':
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require(drupal_get_path('module', 'transcription') .'/handler_types/default_jwplayer.inc');
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return array('jwplayer' => $output);
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}
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}
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/*******************************************
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* END Transcription handlers (TESTING)
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******************************************/
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/**
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* Implementation of hook_field_info().
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*/
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function transcription_field_info() {
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return array(
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'transcription' => array('label' => 'Media Transcription'),
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);
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}
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/*
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* Implementation of hook_field_settings().
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*/
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function transcription_field_settings($op, $field) {
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switch ($op) {
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case 'form':
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$form = array();
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$form['transcription_initial_number_multiple'] = array(
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'#type' => 'select',
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'#title' => t('Initial number of fields to show'),
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'#default_value' => isset($field['transcription_initial_number_multiple']) ? $field['transcription_initial_number_multiple'] : '4',
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'#description' => t('The number of fields to show initial when mulitple values is selected.'),
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'#options' => range(1, 10),
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);
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$options = array(0 => t('Plain text'), 1 => t('Filtered text (user selects input format)'));
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$form['text_processing'] = array(
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'#type' => 'radios',
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'#title' => t('Text processing'),
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'#default_value' => isset($field['text_processing']) ? $field['text_processing'] : 0,
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'#options' => $options,
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);
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$form['max_length'] = array(
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'#type' => 'textfield',
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'#title' => t('Transcription maximum length'),
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'#default_value' => isset($field['max_length']) ? $field['max_length'] : 0,
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'#required' => FALSE,
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'#description' => t('The maximum length of the transcription in characters. Leave blank for an unlimited size.'),
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);
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$form['transcription_description'] = array(
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'#type' => 'textarea',
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'#title' => t('Transcription description text'),
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'#default_value' => isset($field['transcription_description']) ? $field['transcription_description'] : '',
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'#description' => t('The text that will be displayed below the transcription text area.'),
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);
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$form['transcription_timemarker_description'] = array(
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'#type' => 'textarea',
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'#title' => t('Transcription time marker description text'),
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'#default_value' => isset($field['transcription_timemarker_description']) ? $field['transcription_timemarker_description'] : 'Time marker can be entered as an integer that represents seconds, a string in HH:MM:SS format or a string in MM:SS format.',
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'#description' => t('The text that will be displayed below the transcription time marker input field.'),
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);
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return $form;
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case 'save':
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return array('text_processing', 'transcription_description', 'transcription_timemarker_description', 'max_length', 'transcription_initial_number_multiple');
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case 'database columns':
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$columns = array(
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'transcription' => array('type' => 'varchar', 'not null' => TRUE, 'default' => "''", 'sortable' => TRUE),
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'format' => array('type' => 'int', 'length' => 10, 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0),
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'begin_timemarker' => array('type' => 'int(5)', 'not null' => TRUE, 'default' => 0, 'sortable' => TRUE),
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'end_timemarker' => array('type' => 'int(5)', 'not null' => TRUE, 'default' => 0, 'sortable' => TRUE),
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);
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if ($field['max_length'] == 0 || $field['max_length'] > 255) {
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$columns['transcription']['type'] = 'longtext';
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}
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else {
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$columns['transcription']['length'] = $field['max_length'];
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}
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if ($field['text_processing'] == 0) {
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unset($columns['format']);
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}
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return $columns;
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case 'filters':
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return array(
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'like' => array(
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'operator' => 'views_handler_operator_like',
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'handler' => 'views_handler_filter_like',
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),
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);
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}
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}
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/*
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* Implementation of the hook_field()
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*/
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function transcription_field($op, &$node, $field, &$items, $teaser, $page) {
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switch ($op) {
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case 'validate':
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foreach ($items as $delta => $item) {
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$time_markers = array('begin', 'end');
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foreach ($time_markers as $time_marker) {
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$error_field = $field['field_name'] .']['. $delta .']['. $time_marker .'_timemarker';
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if ($item[$time_marker .'_timemarker'] != '') {
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if ($item['transcription'] == '') {
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form_set_error($field['field_name'] .']['. $delta .'][transcription', t('You cannot have a time marker without a transcription.'));
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}
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$decimal = split('\.', $item[$time_marker .'_timemarker']);
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if (count($decimal) > 1) {
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form_set_error($error_field, t('Transcription time markers must be represented in seconds as integer, HH:MM:SS, or MM:SS formats only.'));
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}
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$time_in_seconds = transcription_convert_to_seconds($item[$time_marker .'_timemarker']);
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if ($time_in_seconds != -1) {
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$item[$time_marker .'_timemarker'] = $time_in_seconds;
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}
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if (!is_numeric($item[$time_marker .'_timemarker'])) {
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form_set_error($error_field, t('The value for the %transcription_time_marker must be a time.', array('%transcription_time_marker' => t('Transcription time marker'))));
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}
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if ($item[$time_marker .'_timemarker'] > 86400) {
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form_set_error($error_field, t('The value for the %transcription_time_marker must be less than 24:00:00/8640s.', array('%transcription_time_marker' => t('Transcription time marker'))));
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}
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}
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}
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}
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break;
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case 'submit':
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foreach ($items as $delta => $item) {
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$time_markers = array('begin', 'end');
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foreach ($time_markers as $time_marker) {
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if ($item[$time_marker .'_timemarker'] != '') {
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$time_in_seconds = transcription_convert_to_seconds($item[$time_marker .'_timemarker']);
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if ($time_in_seconds != -1) {
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$items[$delta][$time_marker .'_timemarker'] = $time_in_seconds;
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}
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}
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}
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}
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break;
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}
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}
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/**
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* Implementation of hook_field_formatter_info().
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*/
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function transcription_field_formatter_info() {
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return array(
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'default' => array(
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'label' => 'Default',
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'field types' => array('transcription'),
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)
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);
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}
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/**
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* Implementation of hook_field_formatter().
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*/
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function transcription_field_formatter($field, $item, $formatter, $node) {
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if (!empty($item['transcription'])) {
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if ($field['text_processing']) {
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$item['transcription'] = check_markup($item['transcription'], $item['format'], is_null($node) || isset($node->in_preview));
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}
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else {
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$item['transcription'] = check_plain($item['transcription']);
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}
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return theme('transcription', $item);
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}
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}
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/**
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* Implementation of hook_widget_info().
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*/
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function transcription_widget_info() {
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return array(
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'transcription' => array(
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'label' => 'Media Transcription',
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'field types' => array('transcription')
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)
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);
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}
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/**
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* Implemenation of hook_widget().
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*/
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function transcription_widget($op, &$node, $field, &$items) {
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switch ($op) {
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case 'form':
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$form = array();
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$form[$field['field_name']] = array(
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'#tree' => true,
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'#type' => 'fieldset',
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'#title' => t($field['widget']['label']),
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'#description' => t($field['widget']['description']),
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'#collapsible' => true,
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);
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if ($field['multiple']) {
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$delta = 0;
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foreach ($items as $data) {
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if ($data['transcription'] != '') {
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$form[$field['field_name']][$delta] = array(
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'#type' => 'fieldset',
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'#title' => t('Media Transcription') .' '. ($delta+1),
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'#description' => t('In order to add additional fields you must click %submit or %preview.', array('%submit' => t('Submit'), '%preview' => t('Preview'))),
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'#collapsible' => true,
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'#collapsed' => true,
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);
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$form[$field['field_name']][$delta]['transcription'] = array(
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'#type' => 'textarea',
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'#title' => t('Transcription'),
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'#description' => (isset($field['transcription_description'])) ? check_plain($field['transcription_description']) : '',
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'#maxlength' => $field['max_length'] ? $field['max_length'] : NULL,
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'#weight' => -10,
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'#required' => ($delta == 0) ? $field['required'] : FALSE,
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'#default_value' => $data['transcription']
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);
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if ($field['text_processing']) {
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$form[$field['field_name']][$delta]['format'] = filter_form($data['format'], $form[$field['field_name']][$delta]['transcription']['#weight'] + 1, array($field['field_name'], $delta, 'format'));
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}
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$form[$field['field_name']][$delta]['begin_timemarker'] = array(
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'#type' => 'textfield',
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'#title' => t('Begin transcription time marker'),
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'#description' => (isset($field['transcription_timemarker_description'])) ? check_plain($field['transcription_timemarker_description']) : '',
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'#required' => ($delta == 0) ? $field['required'] : FALSE,
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'#size' => 8,
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'#maxlength' => 8,
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'#default_value' => $data['begin_timemarker']
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);
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$form[$field['field_name']][$delta]['end_timemarker'] = array(
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'#type' => 'textfield',
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'#title' => t('End transcription time marker'),
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'#description' => (isset($field['transcription_timemarker_description'])) ? check_plain($field['transcription_timemarker_description']) : '',
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'#required' => ($delta == 0) ? $field['required'] : FALSE,
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| 292 |
'#size' => 8,
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'#maxlength' => 8,
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'#default_value' => $data['end_timemarker']
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);
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$delta++;
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}
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}
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| 299 |
$range_limit = isset($field['transcription_initial_number_multiple']) ? $field['transcription_initial_number_multiple'] : '4';
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foreach (range($delta, $delta + $range_limit) as $delta) {
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$form[$field['field_name']][$delta] = array(
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| 302 |
'#type' => 'fieldset',
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| 303 |
'#title' => t('Media Transcription') .' '. ($delta+1),
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'#description' => t('In order to add additional fields you must click %submit or %preview.', array('%submit' => t('Submit'), '%preview' => t('Preview'))),
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| 305 |
'#collapsible' => true,
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| 306 |
'#collapsed' => false,
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);
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| 308 |
$form[$field['field_name']][$delta]['transcription'] = array(
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| 309 |
'#type' => 'textarea',
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| 310 |
'#title' => t('Transcription'),
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| 311 |
'#maxlength' => $field['max_length'] ? $field['max_length'] : NULL,
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| 312 |
'#weight' => -10,
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| 313 |
'#required' => ($delta == 0) ? $field['required'] : FALSE,
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| 314 |
'#description' => (isset($field['transcription_description'])) ? check_plain($field['transcription_description']) : '',
|
| 315 |
);
|
| 316 |
if ($field['text_processing']) {
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| 317 |
$form[$field['field_name']][$delta]['format'] = filter_form($items[$delta]['format'], $form[$field['field_name']][$delta]['transcription']['#weight'] + 1, array($field['field_name'], $delta, 'format'));
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| 318 |
}
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| 319 |
$form[$field['field_name']][$delta]['begin_timemarker'] = array(
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| 320 |
'#type' => 'textfield',
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| 321 |
'#required' => ($delta == 0) ? $field['required'] : FALSE,
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| 322 |
'#title' => t('Beginning ranscription time marker'),
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| 323 |
'#size' => 8,
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| 324 |
'#maxlength' => 8,
|
| 325 |
'#description' => (isset($field['transcription_timemarker_description'])) ? check_plain($field['transcription_timemarker_description']) : '',
|
| 326 |
);
|
| 327 |
$form[$field['field_name']][$delta]['End_timemarker'] = array(
|
| 328 |
'#type' => 'textfield',
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| 329 |
'#required' => ($delta == 0) ? $field['required'] : FALSE,
|
| 330 |
'#title' => t('Ending transcription time marker'),
|
| 331 |
'#size' => 8,
|
| 332 |
'#maxlength' => 8,
|
| 333 |
'#description' => (isset($field['transcription_timemarker_description'])) ? check_plain($field['transcription_timemarker_description']) : '',
|
| 334 |
);
|
| 335 |
}
|
| 336 |
}
|
| 337 |
else {
|
| 338 |
$form[$field['field_name']][0]['transcription'] = array(
|
| 339 |
'#type' => 'textarea',
|
| 340 |
'#title' => t('Transcription'),
|
| 341 |
'#description' => (isset($field['transcription_description'])) ? check_plain($field['transcription_description']) : '',
|
| 342 |
'#maxlength' => $field['max_length'] ? $field['max_length'] : NULL,
|
| 343 |
'#weight' => -10,
|
| 344 |
'#default_value' => isset($items[0]['transcription']) ? $items[0]['transcription'] : '',
|
| 345 |
);
|
| 346 |
if ($field['text_processing']) {
|
| 347 |
$form[$field['field_name']][0]['format'] = filter_form($items[0]['format'], $form[$field['field_name']][0]['transcription']['#weight'] + 1, array($field['field_name'], 0, 'format'));
|
| 348 |
}
|
| 349 |
$form[$field['field_name']][0]['begin_timemarker'] = array(
|
| 350 |
'#type' => 'textfield',
|
| 351 |
'#title' => t('Beginning transcription time marker'),
|
| 352 |
'#size' => 8,
|
| 353 |
'#maxlength' => 8,
|
| 354 |
'#description' => (isset($field['transcription_timemarker_description'])) ? check_plain($field['transcription_timemarker_description']) : '',
|
| 355 |
'#default_value' => isset($items[0]['begin_timemarker']) && $items[0]['begin_timemarker'] != 0 ? $items[0]['begin_timemarker'] : '',
|
| 356 |
);
|
| 357 |
$form[$field['field_name']][0]['end_timemarker'] = array(
|
| 358 |
'#type' => 'textfield',
|
| 359 |
'#title' => t('Ending transcription time marker'),
|
| 360 |
'#size' => 8,
|
| 361 |
'#maxlength' => 8,
|
| 362 |
'#description' => (isset($field['transcription_timemarker_description'])) ? check_plain($field['transcription_timemarker_description']) : '',
|
| 363 |
'#default_value' => isset($items[0]['end_timemarker']) && $items[0]['end_timemarker'] != 0 ? $items[0]['end_timemarker'] : '',
|
| 364 |
);
|
| 365 |
}
|
| 366 |
return $form;
|
| 367 |
|
| 368 |
case 'validate':
|
| 369 |
break;
|
| 370 |
|
| 371 |
case 'process form values':
|
| 372 |
if ($field['multiple']) {
|
| 373 |
if ($field['multiple']) {
|
| 374 |
foreach ($items as $delta => $item) {
|
| 375 |
if ($item['transcription'] == '' && $item['begin_timemarker'] == '' && $delta > 0) {
|
| 376 |
unset($items[$delta]);
|
| 377 |
}
|
| 378 |
}
|
| 379 |
}
|
| 380 |
}
|
| 381 |
break;
|
| 382 |
}
|
| 383 |
}
|
| 384 |
|
| 385 |
/********************
|
| 386 |
* Theme functions.
|
| 387 |
*******************/
|
| 388 |
/**
|
| 389 |
* A theme function for outputting a transcription.
|
| 390 |
*
|
| 391 |
* @param $data
|
| 392 |
* An array that contains the transcription text and timemarker.
|
| 393 |
*/
|
| 394 |
function theme_transcription($data) {
|
| 395 |
$output = '';
|
| 396 |
$output .= $data['transcription'];
|
| 397 |
if ($data['begin_timemarker'] != 0 && $data['begin_timemarker'] != '') {
|
| 398 |
$output .= ' <span class="begin">'. theme('transcription_seconds_to_time', $data['begin_timemarker']) .'</span>';
|
| 399 |
}
|
| 400 |
if ($data['end_timemarker'] != 0 && $data['end_timemarker'] != '') {
|
| 401 |
$output .= ' <span class="end">'. theme('transcription_seconds_to_time', $data['end_timemarker']) .'</span>';
|
| 402 |
}
|
| 403 |
return '<p class="transcription">'. $output .'</p>';
|
| 404 |
}
|
| 405 |
|
| 406 |
/**
|
| 407 |
* Display seconds as HH:MM:SS, with leading 0's.
|
| 408 |
*
|
| 409 |
* @param $seconds
|
| 410 |
* The number of seconds to display.
|
| 411 |
*/
|
| 412 |
function theme_transcription_seconds_to_time($seconds) {
|
| 413 |
$unith =3600; // Num of seconds in an Hour...
|
| 414 |
$unitm =60; // Num of seconds in a min...
|
| 415 |
|
| 416 |
$hh = intval($seconds / $unith); // '/' given value by num sec in hour... output = HOURS
|
| 417 |
$ss_remaining = ($seconds - ($hh * 3600)); // '*' number of hours by seconds, then '-' from given value... output = REMAINING seconds
|
| 418 |
|
| 419 |
$mm = intval($ss_remaining / $unitm); // take remaining sec and devide by sec in a min... output = MINS
|
| 420 |
$ss = ($ss_remaining - ($mm * 60)); // '*' number of mins by seconds, then '-' from remaining sec... output = REMAINING seconds.
|
| 421 |
|
| 422 |
$output = '';
|
| 423 |
if ($hh) {
|
| 424 |
$output .= "$hh:";
|
| 425 |
}
|
| 426 |
$output .= check_plain(sprintf("%02d:%02d", $mm, $ss));
|
| 427 |
|
| 428 |
return $output;
|
| 429 |
}
|
| 430 |
|
| 431 |
/*********************
|
| 432 |
* Util functions.
|
| 433 |
*********************/
|
| 434 |
/**
|
| 435 |
* Convert time from field into seconds.
|
| 436 |
*
|
| 437 |
* @param $time
|
| 438 |
* Raw timemarker input from field.
|
| 439 |
*/
|
| 440 |
function transcription_convert_to_seconds($time) {
|
| 441 |
$time_in_seconds = 0;
|
| 442 |
$time_split = split(':', $time);
|
| 443 |
$count = count($time_split);
|
| 444 |
|
| 445 |
// If it is already in seconds then don't do anything.
|
| 446 |
if ($count == 1) return -1;
|
| 447 |
|
| 448 |
foreach ($time_split as $unit) {
|
| 449 |
$count--;
|
| 450 |
// If hours or minutes multiply by appropriate amount.
|
| 451 |
if ($count > 0) {
|
| 452 |
// If it is hours multiply by 36000 if minutes multiply by 60.
|
| 453 |
$time_in_seconds += $unit*(pow(60, $count));
|
| 454 |
}
|
| 455 |
else {
|
| 456 |
// If we are on the seconds unit then we do not need to do anything.
|
| 457 |
$time_in_seconds += $unit;
|
| 458 |
}
|
| 459 |
}
|
| 460 |
|
| 461 |
return $time_in_seconds;
|
| 462 |
}
|
| 463 |
|
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