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Gallery shortcode - change link file image size?

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<strong>Gallery shortcode - change link file image size? (not using default fullsize image)</strong>


I am using this for my gallery -

<?php echo do_shortcode('[gallery size="gallery-thumb" link="file"]'); ?>

and I am using the jquery fancyapps fancybox. But some full-size images that are in my gallery are are really big and take forever to load...

Instead I want the link file in the shortcode to use my custom image size below...

add_image_size( 'fancyapps-image', 1024, 1024 );

Can any one help with out using another plugin?

<hr />

I am using similar script on my post/pages body where images are inserted manually and aligned etc. So something similar surely could work?

This script combo functions ajax call basically scans all the images in my posts and changes the link url to the 'fancyapps-image' size...

<strong>script</strong>



var raw_class, image_id = new Array();
$('.entry a img').each(function(i){
var img_class = $(this).attr('class');
if(img_class && img_class != undefined){
raw_class = $(this).attr('class').split(" ");
for(j=0;j<=raw_class.length-1;j++){
if(raw_class[j].match(/wp-image-/))
image_id[i]= raw_class[j].slice(9);
}
}
});

var image_ids = image_id.toString();
var data = { type: 'get_data', action: 'wp_get_large_image_url', data: image_ids }

$.post( wp_ajax, data, function(message){
if(message){
var raw_data = message.split(',');
for(i=0;i<=raw_data.length-1;i++){
var image_data = raw_data[i].split('%-');
$('.wp-image-'+image_data[1]).parent('a').attr('href', image_data[0]);
}
}
});



<br />

<strong>admin-ajax.php call</strong>



<?php echo "var wp_ajax = '" . admin_url('admin-ajax.php') . "';" ?>



<br />

<strong>functions.php</strong>



function wp_large_image_data(){
unset( $_POST['action'] );
if($_POST['type'] == 'get_data'){
$data = $_POST['data'];
$image_ids = explode( ',', $data );
$image_large_url = array();
foreach($image_ids as $image_id){
if($image_id){
$attachment_data = wp_get_attachment_image_src( $image_id, 'fancyapps-image' );
$image_large_url[] = $attachment_data[0].'%-'.$image_id;
}
}
$image_data = implode( "," , $image_large_url);
echo $image_data;
}
die;
}
add_action('wp_ajax_wp_get_large_image_url', 'wp_large_image_data');
add_action('wp_ajax_nopriv_wp_get_large_image_url', 'wp_large_image_data');



<br />

Any ideas would be great thanks.

Full winnings will go to solution that works and I use.

Answers (3)

2012-08-16

Hai Bui answers:

Add it to your functions.php and it will use the ‘fancyapps-image’ version of the image wherever WordPress is displaying a link to an attached image. Hope it helps.
function oikos_get_attachment_link_filter( $content, $post_id, $size, $permalink ) {

// Only do this if we're getting the file URL
if (! $permalink) {
// This returns an array of (url, width, height)
$image = wp_get_attachment_image_src( $post_id, 'fancyapps-image' );
$new_content = preg_replace('/href=\'(.*?)\'/', 'href=\'' . $image[0] . '\'', $content );
return $new_content;
}
}

add_filter('wp_get_attachment_link', 'oikos_get_attachment_link_filter', 10, 4);


Code from http://oikos.org.uk/2011/09/tech-notes-using-resized-images-in-wordpress-galleries-and-lightboxes/


Josh Cranwell comments:

Thank you Hai this works great!

2012-08-16

Martin Pham answers:

try this


function wp_large_image_data(){

unset( $_POST['action'] );

if($_POST['type'] == 'get_data'){

$data = $_POST['data'];

$image_ids = explode( ',', $data );

$image_large_url = array();

foreach($image_ids as $image_id){

if($image_id){

$attachment_data = wp_get_attachment_image_src( $image_id, 'large' );

$image_large_url[] = $attachment_data[0].'%-'.$image_id;

}

}

$image_data = implode( "," , $image_large_url);

echo $image_data;

}

die;

}


Josh Cranwell comments:

Not quite what I had in mind.

2012-08-16

Arnav Joy answers:

try this plugin

http://wordpress.org/extend/plugins/cleaner-gallery/


Josh Cranwell comments:

I used Hai method as it less bulky. Thanks for idea tho