401 lines
8.9 KiB
PHP
401 lines
8.9 KiB
PHP
<?php
|
|
/**
|
|
* Base WordPress Image Editor
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Image_Editor
|
|
*/
|
|
|
|
/**
|
|
* Base image editor class from which implementations extend
|
|
*
|
|
* @since 3.5.0
|
|
*/
|
|
abstract class WP_Image_Editor {
|
|
protected $file = null;
|
|
protected $size = null;
|
|
protected $mime_type = null;
|
|
protected $default_mime_type = 'image/jpeg';
|
|
protected $quality = 90;
|
|
|
|
/**
|
|
* Each instance handles a single file.
|
|
*/
|
|
public function __construct( $file ) {
|
|
$this->file = $file;
|
|
}
|
|
|
|
/**
|
|
* Checks to see if current environment supports the editor chosen.
|
|
* Must be overridden in a sub-class.
|
|
*
|
|
* @since 3.5.0
|
|
* @access public
|
|
* @abstract
|
|
*
|
|
* @param array $args
|
|
* @return boolean
|
|
*/
|
|
public static function test( $args = array() ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Checks to see if editor supports the mime-type specified.
|
|
* Must be overridden in a sub-class.
|
|
*
|
|
* @since 3.5.0
|
|
* @access public
|
|
* @abstract
|
|
*
|
|
* @param string $mime_type
|
|
* @return boolean
|
|
*/
|
|
public static function supports_mime_type( $mime_type ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Loads image from $this->file into editor.
|
|
*
|
|
* @since 3.5.0
|
|
* @access protected
|
|
* @abstract
|
|
*
|
|
* @return boolean|WP_Error True if loaded; WP_Error on failure.
|
|
*/
|
|
abstract public function load();
|
|
|
|
/**
|
|
* Saves current image to file.
|
|
*
|
|
* @since 3.5.0
|
|
* @access public
|
|
* @abstract
|
|
*
|
|
* @param string $destfilename
|
|
* @param string $mime_type
|
|
* @return array|WP_Error {'path'=>string, 'file'=>string, 'width'=>int, 'height'=>int, 'mime-type'=>string}
|
|
*/
|
|
abstract public function save( $destfilename = null, $mime_type = null );
|
|
|
|
/**
|
|
* Resizes current image.
|
|
*
|
|
* @since 3.5.0
|
|
* @access public
|
|
* @abstract
|
|
*
|
|
* @param int $max_w
|
|
* @param int $max_h
|
|
* @param boolean $crop
|
|
* @return boolean|WP_Error
|
|
*/
|
|
abstract public function resize( $max_w, $max_h, $crop = false );
|
|
|
|
/**
|
|
* Processes current image and saves to disk
|
|
* multiple sizes from single source.
|
|
*
|
|
* @since 3.5.0
|
|
* @access public
|
|
* @abstract
|
|
*
|
|
* @param array $sizes
|
|
* @return array
|
|
*/
|
|
abstract public function multi_resize( $sizes );
|
|
|
|
/**
|
|
* Crops Image.
|
|
*
|
|
* @since 3.5.0
|
|
* @access public
|
|
* @abstract
|
|
*
|
|
* @param string|int $src The source file or Attachment ID.
|
|
* @param int $src_x The start x position to crop from.
|
|
* @param int $src_y The start y position to crop from.
|
|
* @param int $src_w The width to crop.
|
|
* @param int $src_h The height to crop.
|
|
* @param int $dst_w Optional. The destination width.
|
|
* @param int $dst_h Optional. The destination height.
|
|
* @param boolean $src_abs Optional. If the source crop points are absolute.
|
|
* @return boolean|WP_Error
|
|
*/
|
|
abstract public function crop( $src_x, $src_y, $src_w, $src_h, $dst_w = null, $dst_h = null, $src_abs = false );
|
|
|
|
/**
|
|
* Rotates current image counter-clockwise by $angle.
|
|
*
|
|
* @since 3.5.0
|
|
* @access public
|
|
* @abstract
|
|
*
|
|
* @param float $angle
|
|
* @return boolean|WP_Error
|
|
*/
|
|
abstract public function rotate( $angle );
|
|
|
|
/**
|
|
* Flips current image.
|
|
*
|
|
* @since 3.5.0
|
|
* @access public
|
|
* @abstract
|
|
*
|
|
* @param boolean $horz Horizontal Flip
|
|
* @param boolean $vert Vertical Flip
|
|
* @return boolean|WP_Error
|
|
*/
|
|
abstract public function flip( $horz, $vert );
|
|
|
|
/**
|
|
* Streams current image to browser.
|
|
*
|
|
* @since 3.5.0
|
|
* @access public
|
|
* @abstract
|
|
*
|
|
* @param string $mime_type
|
|
* @return boolean|WP_Error
|
|
*/
|
|
abstract public function stream( $mime_type = null );
|
|
|
|
/**
|
|
* Gets dimensions of image.
|
|
*
|
|
* @since 3.5.0
|
|
* @access public
|
|
*
|
|
* @return array {'width'=>int, 'height'=>int}
|
|
*/
|
|
public function get_size() {
|
|
return $this->size;
|
|
}
|
|
|
|
/**
|
|
* Sets current image size.
|
|
*
|
|
* @since 3.5.0
|
|
* @access protected
|
|
*
|
|
* @param int $width
|
|
* @param int $height
|
|
*/
|
|
protected function update_size( $width = null, $height = null ) {
|
|
$this->size = array(
|
|
'width' => $width,
|
|
'height' => $height
|
|
);
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Sets Image Compression quality on a 1-100% scale.
|
|
*
|
|
* @since 3.5.0
|
|
* @access public
|
|
*
|
|
* @param int $quality Compression Quality. Range: [1,100]
|
|
* @return boolean
|
|
*/
|
|
public function set_quality( $quality ) {
|
|
$this->quality = apply_filters( 'wp_editor_set_quality', $quality );
|
|
|
|
return ( (bool) $this->quality );
|
|
}
|
|
|
|
/**
|
|
* Returns preferred mime-type and extension based on provided
|
|
* file's extension and mime, or current file's extension and mime.
|
|
*
|
|
* Will default to $this->default_mime_type if requested is not supported.
|
|
*
|
|
* Provides corrected filename only if filename is provided.
|
|
*
|
|
* @since 3.5.0
|
|
* @access protected
|
|
*
|
|
* @param string $filename
|
|
* @param string $mime_type
|
|
* @return array { filename|null, extension, mime-type }
|
|
*/
|
|
protected function get_output_format( $filename = null, $mime_type = null ) {
|
|
$new_ext = $file_ext = null;
|
|
$file_mime = null;
|
|
|
|
// By default, assume specified type takes priority
|
|
if ( $mime_type ) {
|
|
$new_ext = $this->get_extension( $mime_type );
|
|
}
|
|
|
|
if ( $filename ) {
|
|
$file_ext = strtolower( pathinfo( $filename, PATHINFO_EXTENSION ) );
|
|
$file_mime = $this->get_mime_type( $file_ext );
|
|
}
|
|
else {
|
|
// If no file specified, grab editor's current extension and mime-type.
|
|
$file_ext = strtolower( pathinfo( $this->file, PATHINFO_EXTENSION ) );
|
|
$file_mime = $this->mime_type;
|
|
}
|
|
|
|
// Check to see if specified mime-type is the same as type implied by
|
|
// file extension. If so, prefer extension from file.
|
|
if ( ! $mime_type || ( $file_mime == $mime_type ) ) {
|
|
$mime_type = $file_mime;
|
|
$new_ext = $file_ext;
|
|
}
|
|
|
|
// Double-check that the mime-type selected is supported by the editor.
|
|
// If not, choose a default instead.
|
|
if ( ! $this->supports_mime_type( $mime_type ) ) {
|
|
$mime_type = apply_filters( 'image_editor_default_mime_type', $this->default_mime_type );
|
|
$new_ext = $this->get_extension( $mime_type );
|
|
}
|
|
|
|
if ( $filename ) {
|
|
$ext = '';
|
|
$info = pathinfo( $filename );
|
|
$dir = $info['dirname'];
|
|
|
|
if( isset( $info['extension'] ) )
|
|
$ext = $info['extension'];
|
|
|
|
$filename = trailingslashit( $dir ) . wp_basename( $filename, ".$ext" ) . ".{$new_ext}";
|
|
}
|
|
|
|
return array( $filename, $new_ext, $mime_type );
|
|
}
|
|
|
|
/**
|
|
* Builds an output filename based on current file, and adding proper suffix
|
|
*
|
|
* @since 3.5.0
|
|
* @access public
|
|
*
|
|
* @param string $suffix
|
|
* @param string $dest_path
|
|
* @param string $extension
|
|
* @return string filename
|
|
*/
|
|
public function generate_filename( $suffix = null, $dest_path = null, $extension = null ) {
|
|
// $suffix will be appended to the destination filename, just before the extension
|
|
if ( ! $suffix )
|
|
$suffix = $this->get_suffix();
|
|
|
|
$info = pathinfo( $this->file );
|
|
$dir = $info['dirname'];
|
|
$ext = $info['extension'];
|
|
|
|
$name = wp_basename( $this->file, ".$ext" );
|
|
$new_ext = strtolower( $extension ? $extension : $ext );
|
|
|
|
if ( ! is_null( $dest_path ) && $_dest_path = realpath( $dest_path ) )
|
|
$dir = $_dest_path;
|
|
|
|
return trailingslashit( $dir ) . "{$name}-{$suffix}.{$new_ext}";
|
|
}
|
|
|
|
/**
|
|
* Builds and returns proper suffix for file based on height and width.
|
|
*
|
|
* @since 3.5.0
|
|
* @access public
|
|
*
|
|
* @return string suffix
|
|
*/
|
|
public function get_suffix() {
|
|
if ( ! $this->get_size() )
|
|
return false;
|
|
|
|
return "{$this->size['width']}x{$this->size['height']}";
|
|
}
|
|
|
|
/**
|
|
* Either calls editor's save function or handles file as a stream.
|
|
*
|
|
* @since 3.5.0
|
|
* @access protected
|
|
*
|
|
* @param string|stream $filename
|
|
* @param callable $function
|
|
* @param array $arguments
|
|
* @return boolean
|
|
*/
|
|
protected function make_image( $filename, $function, $arguments ) {
|
|
$dst_file = $filename;
|
|
|
|
if ( $stream = wp_is_stream( $filename ) ) {
|
|
$filename = null;
|
|
ob_start();
|
|
}
|
|
|
|
$result = call_user_func_array( $function, $arguments );
|
|
|
|
if ( $result && $stream ) {
|
|
$contents = ob_get_contents();
|
|
|
|
$fp = fopen( $dst_file, 'w' );
|
|
|
|
if ( ! $fp )
|
|
return false;
|
|
|
|
fwrite( $fp, $contents );
|
|
fclose( $fp );
|
|
}
|
|
|
|
if ( $stream ) {
|
|
ob_end_clean();
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Returns first matched mime-type from extension,
|
|
* as mapped from wp_get_mime_types()
|
|
*
|
|
* @since 3.5.0
|
|
* @access protected
|
|
*
|
|
* @param string $extension
|
|
* @return string|boolean
|
|
*/
|
|
protected static function get_mime_type( $extension = null ) {
|
|
if ( ! $extension )
|
|
return false;
|
|
|
|
$mime_types = wp_get_mime_types();
|
|
$extensions = array_keys( $mime_types );
|
|
|
|
foreach( $extensions as $_extension ) {
|
|
if ( preg_match( "/{$extension}/i", $_extension ) ) {
|
|
return $mime_types[$_extension];
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Returns first matched extension from Mime-type,
|
|
* as mapped from wp_get_mime_types()
|
|
*
|
|
* @since 3.5.0
|
|
* @access protected
|
|
*
|
|
* @param string $mime_type
|
|
* @return string|boolean
|
|
*/
|
|
protected static function get_extension( $mime_type = null ) {
|
|
$extensions = explode( '|', array_search( $mime_type, wp_get_mime_types() ) );
|
|
|
|
if ( empty( $extensions[0] ) )
|
|
return false;
|
|
|
|
return $extensions[0];
|
|
}
|
|
}
|
|
|