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<?php
// $Id$
/**
* gallery.module : gallery_filter.inc
* Gallery Filter functions (originally by MichelleC and Waldemar)
*/
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// ***************** The Filter in Action ***********************
define('GALLERY__FILTER_WORD', 1);
define('GALLERY_FILTER_INTEGER', 2);
define('GALLERY_FILTER_STRING', 3);
function gallery_filter_attr_value($text, $value_type = GALLERY_FILTER_WORD) {
// Strip off initial and final quotes.
$first = substr($text, 0, 1);
if ($first == "\"" || $first == "\'") {
if (substr($text, -1, 1) == $first) {
$text = substr($text, 1, -1);
}
}
switch ($value_type) {
case GALLERY_FILTER_WORD :
return preg_replace("/\W/", '', $text);
case GALLERY_FILTER_INTEGER :
return preg_replace("/\D/", '', $text);
default :
return check_plain($text);
}
}
// Execute filter on given text.
function gallery_filter_process($text) {
// Find all the image codes and loop over them, replacing each with the Gallery2 image block
$prefix = variable_get('gallery_filter_prefix', 'G2');
$matchetxt = "/\[".trim($prefix).":(\d+)(\s*,)?\s*(.*?)\]/i";
preg_match_all($matchetxt, $text, $matches, PREG_SET_ORDER);
// If we have at least one match, set everything up
if (count($matches) > 0) {
// Set the default and path variables based on module settings
$default_size = variable_get('gallery_filter_default_size', 150);
$default_div_class = variable_get('gallery_filter_default_div_class', 'nowrap');
$default_album_frame = variable_get('gallery_filter_default_album_frame', '');
$default_item_frame = variable_get('gallery_filter_default_item_frame', '');
$default_block_type = variable_get('gallery_filter_default_block_type', 'recentImage');
$default_n_images = variable_get('gallery_filter_n_images', 1);
$default_show = variable_get('gallery_filter_default_show', 'none');
$default_link_target = variable_get('gallery_filter_default_link_target', '');
if ($default_album_frame == 'none') {
$default_album_frame = '';
}
if ($default_item_frame == 'none') {
$default_item_frame = '';
}
// This will hold the list of frames used for images so we can add the CSS link(s) at the end
$frame_list = array ();
// This sets up the embedding
list ($success, $ret) = _gallery_init(true);
if (!$success) {
gallery_error(t('Unable to initialize embedded Gallery'), $ret);
return;
}
}
foreach ($matches as $match) {
// Pull out the arguments into the $args array
$args = array ();
preg_match_all("/(\w+)\=(\"[^\"]*\"|\S*)/", $match[3], $a, PREG_SET_ORDER);
foreach ($a as $arg) {
$args[strtolower($arg[1])] = $arg[2];
}
// Set number of images to show
$n_images = gallery_filter_attr_value($args['n'], GALLERY_FILTER_INTEGER);
if ($n_images == 0) {
// No size specified; use the default
$n_images = $default_n_images;
}
// Set the block type
$block_type = gallery_filter_attr_value($args['type'], GALLERY_FILTER_WORD);
if (empty($block_type)) {
// No block type specified; use the default
$block_type = $default_block_type;
}
if ($n_images <= 1)
$block_type = 'specificItem'; //so it shows something if n=1 and an album is selected
// Set the size of the thumbnail
$size = gallery_filter_attr_value($args['size'], GALLERY_FILTER_INTEGER);
if ($size == 0) {
// No size specified; use the default
$size = $default_size;
}
// Set the class of the div
$div_class = gallery_filter_attr_value($args['class'], GALLERY_FILTER_WORD);
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if (empty ($div_class)) {
// No class specified; use the default
$div_class = $default_div_class;
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// Switch the class to g2image versions (adds consistency)
switch ($div_class) {
case 'left':
$div_class = "g2image_float_left";
break;
case 'right':
$div_class = "g2image_float_right";
break;
case 'center':
case 'centre':
$div_class = "g2image_centered";
break;
case 'normal':
$div_class = "g2image_normal";
break;
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}
// Set the overriding, album, and item frames
$frame = gallery_filter_attr_value($args['frame'], GALLERY_FILTER_WORD);
$album_frame = gallery_filter_attr_value($args['aframe'], GALLERY_FILTER_WORD);
$item_frame = gallery_filter_attr_value($args['iframe'], GALLERY_FILTER_WORD);
if (empty ($frame)) {
// No overriding frame given; check for album_frame and item_frame
if (empty ($album_frame)) {
// No album frame specified; use the default one
$album_frame = $default_album_frame;
}
if (empty ($item_frame)) {
// No item frame specified; use the default one
$item_frame = $default_item_frame;
}
} else {
// Overriding frame given; use it
$album_frame = $frame;
$item_frame = $frame;
}
// Add the requested frames to the array so we can get the CSS later. Don't worry about
// dupes at this point; they will be filtered out later.
array_push($frame_list, $frame);
array_push($frame_list, $album_frame);
array_push($frame_list, $item_frame);
// This part actually fetches the image block. It uses the same paramaters as the code
// found under "Image Block" in site admin in Gallery2.
$show = $default_show;
// Not customized yet:
$link_target = $default_link_target;
$param_blocks_array = array_fill(0, $n_images, $block_type);
$params['itemId'] = $match[1];
$params['blocks'] = is_array($param_blocks_array) ? implode('|', $param_blocks_array) : "";
$param_show_array = $show;
$params['show'] = is_array($param_show_array) ? implode('|', $param_show_array) : "";
$params['maxSize'] = $size;
// Add frames and link target using g2_filter code from MichelleC
$params['albumFrame'] = $album_frame;
$params['itemFrame'] = $item_frame;
$params['linkTarget'] = $link_target;
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$block = array ();
list ($ret, $content, $head) = GalleryEmbed::getImageBlock($params);
if ($ret) {
gallery_error(t('Unable to get Gallery image block'), $ret);
return;
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if ($content) {
// Add a div around the table for styling
if ($div_class != 'none') {
$content = '<div class ="giImageBlock '.$div_class.'">'.$content.'</div>';
}
// This puts the image block HTML back into the rest of the text
$text = str_replace($match[0], $content, $text);
}
if ($head) {
$g2_head[] = $head;
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}
}
} // end of for loop through matches
// If we had at least one match, finish up by adding the css. Unfotunately if there are multiple
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// images on a page this will get added multiple times.
if (count($matches) > 0) {
GalleryEmbed :: done();
if ($g2_head) {
gallery_set_html_head(implode("\n", array_unique($g2_head)));
}
drupal_add_css(drupal_get_path('module', 'gallery') .'/gallery_filter.css', 'module', 'all');
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}
return $text . "<br class=\"giImageBlock-clear-both\" />";;
}