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<?php
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// $Id: video_filter.module,v 1.13 2009/09/19 15:21:16 blackdog Exp $
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/**
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* @file
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* Video filter is a highly flexible and easy extendable filter module
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* to embed any type of video in your site using a simple tag
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*/
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module_load_include('inc', 'video_filter', 'video_filter.codecs');
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/**
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* Implements hook_filter_info().
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*/
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function video_filter_filter_info() {
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$filters = array();
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$filters['video_filter'] = array(
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'title' => t('Video Filter'),
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'description' => t('Substitutes [video:URL] with embedded HTML.'),
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'process callback' => '_video_filter_process',
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'settings callback' => '_video_filter_settings',
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'default settings' => array(
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'video_filter_width' => '400',
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'video_filter_height' => '400',
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'video_filter_autoplay' => 1,
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'video_filter_priority' => 'height',
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'video_filter_related' => 1,
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),
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'tips callback' => '_video_filter_tips',
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);
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return $filters;
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}
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function _video_filter_settings($form, &$form_state, $filter, $defaults) {
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$form['video_filter_width'] = array(
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'#type' => 'textfield',
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'#title' => t('Default width setting'),
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'#default_value' => isset($filter->settings['video_filter_width']) ? $filter->settings['video_filter_width'] : $defaults['video_filter_width'],
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'#maxlength' => 4,
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);
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$form['video_filter_height'] = array(
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'#type' => 'textfield',
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'#title' => t('Default height setting'),
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'#default_value' => isset($filter->settings['video_filter_height']) ? $filter->settings['video_filter_height'] : $defaults['video_filter_height'],
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'#maxlength' => 4,
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);
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$form['video_filter_autoplay'] = array(
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'#type' => 'radios',
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'#title' => t('Default autoplay setting'),
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'#description' => t('Not all video formats support this setting.'),
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'#default_value' => isset($filter->settings['video_filter_autoplay']) ? $filter->settings['video_filter_autoplay'] : $defaults['video_filter_autoplay'],
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'#options' => array(
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0 => t('No'),
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1 => t('Yes'),
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),
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);
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$form['video_filter_priority'] = array(
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'#type' => 'radios',
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'#title' => t('Default priority setting'),
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'#description' => t('Should height or width take priority when videos are re-sized to fit?'),
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'#default_value' => isset($filter->settings['video_filter_priority']) ? $filter->settings['video_filter_priority'] : $defaults['video_filter_priority'],
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'#options' => array(
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'height' => t('Height'),
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'width' => t('Width'),
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),
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);
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$form['video_filter_related'] = array(
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'#type' => 'radios',
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'#title' => t('Related videos setting'),
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'#description' => t('Show "related videos"? Not all video formats support this setting.'),
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'#default_value' => isset($filter->settings['video_filter_related']) ? $filter->settings['video_filter_related'] : $defaults['video_filter_related'],
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'#options' => array(
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0 => t('No'),
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1 => t('Yes'),
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),
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);
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return $form;
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}
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function _video_filter_tips($filter, $format, $long = FALSE) {
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if ($long) {
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$codecs = module_invoke_all('codec_info');
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$supported = array();
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$instructions = array();
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foreach ($codecs AS $codec) {
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$supported[] = $codec['name'];
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$instructions[] = isset($codec['instructions']) ? '<li>' . $codec['name'] . ':<br/>' . $codec['instructions'] . '</li>' : '';
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}
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return t('
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<p><strong>Video Filter</strong></p>
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<p>You may insert videos from popular video sites by using a simple tag <code>[video:URL]</code>.</p>
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<p>Examples:</p>
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<ul>
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<li>Single video:<br /><code>[video:http://www.youtube.com/watch?v=uN1qUeId]</code></li>
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<li>Random video out of multiple:<br /><code>[video:http://www.youtube.com/watch?v=uN1qUeId1,http://www.youtube.com/watch?v=uN1qUeId2]</code></li>
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<li>Override default autoplay setting: <code>[video:http://www.youtube.com/watch?v=uN1qUeId autoplay:1]</code></li>
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<li>Override default width and height:<br /><code>[video:http://www.youtube.com/watch?v=uN1qUeId width:X height:Y]</code></li>
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<li>Align the video:<br /><code>[video:http://www.youtube.com/watch?v=uN1qUeId align:right]</code></li>
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</ul>
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<p>Supported sites: @codecs.</p>
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<p>Special instructions:</p>
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<small>Some codecs need special input. You\'ll find those instructions here.</small>
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<ul>!instructions</ul>', array('@codecs' => implode(', ', $supported), '!instructions' => implode('', $instructions)));
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}
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else {
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return t('You may insert videos with [video:URL]');
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}
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}
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function _video_filter_process($text, $filter) {
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if (preg_match_all('/\[video(\:(.+))?( .+)?\]/isU', $text, $matches_code)) {
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foreach ($matches_code[0] as $ci => $code) {
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$video = array(
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'source' => $matches_code[2][$ci],
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'width' => $filter->settings['video_filter_width'],
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'height' => $filter->settings['video_filter_height'],
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'autoplay' => $filter->settings['video_filter_autoplay'],
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'related' => $filter->settings['video_filter_related'],
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);
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// Pick random out of multiple sources separated by ','
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if (strstr($video['source'], ',')) {
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$sources = explode(',', $video['source']);
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$random = array_rand($sources, 1);
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$video['source'] = $sources[$random];
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}
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// Load all codecs
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$codecs = module_invoke_all('codec_info');
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// Find codec
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foreach ($codecs as $codec) {
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if (!is_array($codec['regexp'])) {
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$codec['regexp'] = array($codec['regexp']);
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}
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// Try different regular expressions
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foreach ($codec['regexp'] as $delta => $regexp) {
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if (preg_match($regexp, $video['source'], $matches)) {
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$video['codec'] = $codec;
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$video['codec']['delta'] = $delta;
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$video['codec']['matches'] = $matches;
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break 2;
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}
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}
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}
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// Codec found
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if ($video['codec']) {
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// Override default attributes
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if ($matches_code[3][$ci] && preg_match_all('/\s+([a-z]+)\:([^\s]+)/i', $matches_code[3][$ci], $matches_attributes)) {
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foreach ($matches_attributes[0] as $ai => $attribute) {
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$video[$matches_attributes[1][$ai]] = $matches_attributes[2][$ai];
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}
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}
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// Resize within width and height to given ratio
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if ($video['codec']['ratio']) {
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// @todo - make this section prettier?
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if ($filter->settings['video_filter_priority'] == 'height') {
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if ($video['width'] * $video['codec']['ratio'] > $video['height']) {
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$video['width'] = round($video['height'] * $video['codec']['ratio']);
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$video['height'] = round($video['width'] / $video['codec']['ratio']);
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}
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else {
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$video['height'] = round($video['width'] / $video['codec']['ratio']);
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$video['width'] = round($video['height'] * $video['codec']['ratio']);
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}
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}
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else {
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if ($video['height'] * $video['codec']['ratio'] > $video['width']) {
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$video['height'] = round($video['width'] / $video['codec']['ratio']);
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$video['width'] = round($video['height'] * $video['codec']['ratio']);
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}
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else {
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$video['width'] = round($video['height'] * $video['codec']['ratio']);
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$video['height'] = round($video['width'] / $video['codec']['ratio']);
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}
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}
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}
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$video['autoplay'] = (bool) $video['autoplay'];
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$video['align'] = in_array($video['align'], array('left', 'right')) ? $video['align'] : NULL;
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$replacement = $video['codec']['callback']($video);
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// Invalid format
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}
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else {
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$replacement = '<!-- VIDEO FILTER - INVALID CODEC IN: ' . $code . ' -->';
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}
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$text = str_replace($code, $replacement, $text);
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}
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}
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return $text;
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}
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/**
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* Wrapper that calls the theme function.
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*/
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function video_filter_flash($video, $params = array()) {
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return theme('video_filter_flash', $video, $params);
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}
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/**
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* Function that outputs the <object> element.
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*
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* @ingroup themeable
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*/
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function theme_video_filter_flash($video, $params) {
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$output = '';
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$output .= '<object type="application/x-shockwave-flash" ';
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if ($video['align']) {
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$output .= 'style="float:' . $video['align'] . '" ';
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}
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$output .= 'width="' . $video['width'] . '" height="' . $video['height'] . '" data="' . $video['source'] . '">' . "\n";
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$defaults = array(
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'movie' => $video['source'],
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'wmode' => 'transparent',
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'allowFullScreen' => 'true',
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);
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$params = array_merge($defaults, (is_array($params) && count($params)) ? $params : array());
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foreach ($params as $name => $value) {
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$output .= ' <param name="' . $name . '" value="' . $value . '" />' . "\n";
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}
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$output .= '</object>' . "\n";
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return $output;
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}
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/**
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* Implements hook_theme().
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*/
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function video_filter_theme($existing, $type, $theme, $path) {
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return array(
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'video_filter_flash' => array(
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'arguments' => array('video' => NULL, 'params' => array()),
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),
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);
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}
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