You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
255 lines
7.6 KiB
PHP
255 lines
7.6 KiB
PHP
<?php
|
|
/**
|
|
* Image resize Class
|
|
*
|
|
* @package RT_TPG
|
|
*/
|
|
|
|
namespace RT\ThePostGrid\Models;
|
|
|
|
use WP_Error;
|
|
|
|
// Do not allow directly accessing this file.
|
|
if ( ! defined( 'ABSPATH' ) ) {
|
|
exit( 'This script cannot be accessed directly.' );
|
|
}
|
|
|
|
/**
|
|
* Image resize Class
|
|
*/
|
|
class ReSizer {
|
|
/**
|
|
* The singleton instance
|
|
*/
|
|
private static $instance = null;
|
|
|
|
/**
|
|
* Should an RtTpgException be thrown on error?
|
|
* If false (default), then the error will just be logged.
|
|
*/
|
|
public $throwOnError = false;
|
|
|
|
/**
|
|
* No cloning allowed
|
|
*/
|
|
private function __clone() {
|
|
}
|
|
|
|
/**
|
|
* For your custom default usage you may want to initialize an rtTPGReSizer object by yourself and then have own defaults
|
|
*/
|
|
public static function getInstance() {
|
|
if ( self::$instance == null ) {
|
|
self::$instance = new self();
|
|
}
|
|
|
|
return self::$instance;
|
|
}
|
|
|
|
/**
|
|
* Run, forest.
|
|
*/
|
|
public function process( $url, $width = null, $height = null, $crop = null, $single = true, $upscale = false ) {
|
|
try {
|
|
// Validate inputs.
|
|
if ( ! $url ) {
|
|
return new WP_Error(
|
|
'broke',
|
|
sprintf(
|
|
/* Translators: %s URL */
|
|
esc_html__( '%s parameter is required', 'the-post-grid' ),
|
|
$url
|
|
)
|
|
);
|
|
}
|
|
if ( ! $width ) {
|
|
return new WP_Error(
|
|
'broke',
|
|
sprintf(
|
|
/* Translators: %s Width */
|
|
esc_html__( '%s parameter is required', 'the-post-grid' ),
|
|
$width
|
|
)
|
|
);
|
|
}
|
|
if ( ! $height ) {
|
|
return new WP_Error(
|
|
'broke',
|
|
sprintf(
|
|
/* Translators: %s Height */
|
|
esc_html__( '%s parameter is required', 'the-post-grid' ),
|
|
$height
|
|
)
|
|
);
|
|
}
|
|
|
|
// Caipt'n, ready to hook.
|
|
if ( true === $upscale ) {
|
|
add_filter( 'image_resize_dimensions', [ $this, 'aq_upscale' ], 10, 6 );
|
|
}
|
|
|
|
// Define upload path & dir.
|
|
$upload_info = wp_upload_dir();
|
|
$upload_dir = $upload_info['basedir'];
|
|
$upload_url = $upload_info['baseurl'];
|
|
|
|
$http_prefix = 'http://';
|
|
$https_prefix = 'https://';
|
|
$relative_prefix = '//'; // The protocol-relative URL
|
|
|
|
/*
|
|
if the $url scheme differs from $upload_url scheme, make them match
|
|
if the schemes differe, images don't show up. */
|
|
if ( ! strncmp( $url, $https_prefix, strlen( $https_prefix ) ) ) { // if url begins with https:// make $upload_url begin with https:// as well
|
|
$upload_url = str_replace( $http_prefix, $https_prefix, $upload_url );
|
|
} elseif ( ! strncmp( $url, $http_prefix, strlen( $http_prefix ) ) ) { // if url begins with http:// make $upload_url begin with http:// as well
|
|
$upload_url = str_replace( $https_prefix, $http_prefix, $upload_url );
|
|
} elseif ( ! strncmp( $url, $relative_prefix, strlen( $relative_prefix ) ) ) { // if url begins with // make $upload_url begin with // as well
|
|
$upload_url = str_replace(
|
|
[
|
|
0 => "$http_prefix",
|
|
1 => "$https_prefix",
|
|
],
|
|
$relative_prefix,
|
|
$upload_url
|
|
);
|
|
}
|
|
|
|
// Check if $img_url is local.
|
|
if ( false === strpos( $url, $upload_url ) ) {
|
|
return new WP_Error(
|
|
'broke',
|
|
sprintf(
|
|
/* Translators: %s URL */
|
|
esc_html__( 'Image must be local: %s', 'the-post-grid' ),
|
|
$url
|
|
)
|
|
);
|
|
}
|
|
|
|
// Define path of image.
|
|
$rel_path = str_replace( $upload_url, '', $url );
|
|
$img_path = $upload_dir . $rel_path;
|
|
|
|
// Check if img path exists, and is an image indeed.
|
|
if ( ! file_exists( $img_path ) or ! getimagesize( $img_path ) ) {
|
|
return new WP_Error( 'broke', 'Image file does not exist (or is not an image): ' . $img_path );
|
|
// throw new RtTpgException( 'Image file does not exist (or is not an image): ' . $img_path );
|
|
}
|
|
|
|
// Get image info.
|
|
$info = pathinfo( $img_path );
|
|
$ext = $info['extension'];
|
|
list( $orig_w, $orig_h ) = getimagesize( $img_path );
|
|
|
|
// Get image size after cropping.
|
|
$dims = image_resize_dimensions( $orig_w, $orig_h, $width, $height, $crop );
|
|
$dst_w = is_array( $dims ) && isset( $dims[4] ) ? $dims[4] : $orig_w;
|
|
$dst_h = is_array( $dims ) && isset( $dims[5] ) ? $dims[5] : $orig_h;
|
|
|
|
// Return the original image only if it exactly fits the needed measures.
|
|
if ( ! $dims && ( ( ( null === $height && $orig_w == $width ) xor ( null === $width && $orig_h == $height ) ) xor ( $height == $orig_h && $width == $orig_w ) ) ) {
|
|
$img_url = $url;
|
|
$dst_w = $orig_w;
|
|
$dst_h = $orig_h;
|
|
} else {
|
|
// Use this to check if cropped image already exists, so we can return that instead.
|
|
$suffix = "{$dst_w}x{$dst_h}";
|
|
$dst_rel_path = str_replace( '.' . $ext, '', $rel_path );
|
|
$destfilename = "{$upload_dir}{$dst_rel_path}-{$suffix}.{$ext}";
|
|
|
|
if ( ! $dims || ( true == $crop && false == $upscale && ( $dst_w < $width || $dst_h < $height ) ) ) {
|
|
// Can't resize, so return false saying that the action to do could not be processed as planned.
|
|
return new WP_Error( 'broke', 'Image file does not exist (or is not an image): ' . $img_path );
|
|
// throw new RtTpgException( 'Unable to resize image because image_resize_dimensions() failed' );
|
|
} // Else check if cache exists.
|
|
elseif ( file_exists( $destfilename ) && getimagesize( $destfilename ) ) {
|
|
$img_url = "{$upload_url}{$dst_rel_path}-{$suffix}.{$ext}";
|
|
} // Else, we resize the image and return the new resized image url.
|
|
else {
|
|
|
|
$editor = wp_get_image_editor( $img_path );
|
|
|
|
if ( is_wp_error( $editor ) || is_wp_error( $editor->resize( $width, $height, $crop ) ) ) {
|
|
return new WP_Error( 'broke', 'Image file does not exist (or is not an image): ' . $img_path );
|
|
// throw new RtTpgException( 'Unable to get WP_Image_Editor: ' .
|
|
// $editor->get_error_message() . ' (is GD or ImageMagick installed?)' );
|
|
}
|
|
|
|
$resized_file = $editor->save();
|
|
|
|
if ( ! is_wp_error( $resized_file ) ) {
|
|
$resized_rel_path = str_replace( $upload_dir, '', $resized_file['path'] );
|
|
$img_url = $upload_url . $resized_rel_path;
|
|
} else {
|
|
return new WP_Error( 'broke', 'Image file does not exist (or is not an image): ' . $img_path );
|
|
// throw new RtTpgException( 'Unable to save resized image file: ' . $editor->get_error_message() );
|
|
}
|
|
}
|
|
}
|
|
|
|
// Okay, leave the ship.
|
|
if ( true === $upscale ) {
|
|
remove_filter( 'image_resize_dimensions', [ $this, 'aq_upscale' ] );
|
|
}
|
|
|
|
// Return the output.
|
|
if ( $single ) {
|
|
// str return.
|
|
$image = $img_url;
|
|
} else {
|
|
// array return.
|
|
$image = [
|
|
0 => $img_url,
|
|
1 => $dst_w,
|
|
2 => $dst_h,
|
|
];
|
|
}
|
|
|
|
return $image;
|
|
} catch ( RtTpgException $ex ) {
|
|
error_log( 'rtTPGReSizer.process() error: ' . $ex->getMessage() );
|
|
|
|
if ( $this->throwOnError ) {
|
|
// Bubble up exception.
|
|
throw $ex;
|
|
} else {
|
|
// Return false, so that this patch is backwards-compatible.
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Callback to overwrite WP computing of thumbnail measures
|
|
*/
|
|
function aq_upscale( $default, $orig_w, $orig_h, $dest_w, $dest_h, $crop ) {
|
|
if ( ! $crop ) {
|
|
return null;
|
|
} // Let the WordPress default function handle this.
|
|
|
|
// Here is the point we allow to use larger image size than the original one.
|
|
$aspect_ratio = $orig_w / $orig_h;
|
|
$new_w = $dest_w;
|
|
$new_h = $dest_h;
|
|
|
|
if ( ! $new_w ) {
|
|
$new_w = intval( $new_h * $aspect_ratio );
|
|
}
|
|
|
|
if ( ! $new_h ) {
|
|
$new_h = intval( $new_w / $aspect_ratio );
|
|
}
|
|
|
|
$size_ratio = max( $new_w / $orig_w, $new_h / $orig_h );
|
|
|
|
$crop_w = round( $new_w / $size_ratio );
|
|
$crop_h = round( $new_h / $size_ratio );
|
|
|
|
$s_x = floor( ( $orig_w - $crop_w ) / 2 );
|
|
$s_y = floor( ( $orig_h - $crop_h ) / 2 );
|
|
|
|
return [ 0, 0, (int) $s_x, (int) $s_y, (int) $new_w, (int) $new_h, (int) $crop_w, (int) $crop_h ];
|
|
}
|
|
}
|