refactor: modularize theme structure and clean up functions.php

- moved performance-related logic into /inc/performance/performance.php
- relocated image optimization logic into dedicated image-optimizer module
- simplified functions.php to act as bootstrap and theme setup only
- introduced consistent module loading via require_once
- improved file structure with clear separation of concerns (customizer, utilities, tools, performance)

theme setup improvements:
- consolidated editor styles setup into zeitfresser_setup()
- removed redundant hooks and improved readability

assets:
- added script dependency (scripts -> navigation) to prevent load order issues
- improved stylesheet dependency handling

result:
- cleaner architecture
- better maintainability and scalability
- reduced risk of side effects during future feature development
This commit is contained in:
2026-05-03 01:07:15 +02:00
parent 61da5b15e5
commit 0a2bbcbef8
3 changed files with 615 additions and 598 deletions
+266
View File
@@ -9,6 +9,272 @@ if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* ------------------------------------------------------------------------
* Upload Handling (Original File Tracking)
* ------------------------------------------------------------------------
*/
function zeitfresser_capture_original_upload( $upload, $context ) {
if ( empty( $upload['file'] ) ) {
return $upload;
}
// Store temporarily (request-scoped)
$GLOBALS['zeitfresser_last_uploaded_file'] = $upload['file'];
return $upload;
}
add_filter( 'wp_handle_upload', 'zeitfresser_capture_original_upload', 10, 2 );
/**
* Persist original file path to attachment meta
*/
function zeitfresser_store_original_file( $attachment_id ) {
if ( ! wp_attachment_is_image( $attachment_id ) ) {
return;
}
if ( empty( $GLOBALS['zeitfresser_last_uploaded_file'] ) ) {
return;
}
$file = $GLOBALS['zeitfresser_last_uploaded_file'];
// Safety: ensure file still exists
if ( ! file_exists( $file ) ) {
return;
}
// Prevent overwrite if already set
if ( get_post_meta( $attachment_id, '_zeitfresser_original_file', true ) ) {
return;
}
update_post_meta(
$attachment_id,
'_zeitfresser_original_file',
$file
);
}
add_action( 'add_attachment', 'zeitfresser_store_original_file' );
/**
* Convert generated JPEG and PNG files to AVIF/WebP when enabled.
*
* Auto optimization can be disabled for uploads via Customizer.
* Manual optimization may still force conversion through a request-scoped flag.
*
* @param array $formats Output format map.
* @return array
*/
function zeitfresser_image_output_format( $formats ) {
$auto_enabled = get_theme_mod( 'ztfr_auto_optimize', true );
$force_enabled = ! empty( $GLOBALS['zeitfresser_force_image_optimization'] );
if ( ! $auto_enabled && ! $force_enabled ) {
return $formats;
}
if ( function_exists( 'wp_image_editor_supports' ) ) {
// Prefer AVIF if supported.
if ( wp_image_editor_supports( array( 'mime_type' => 'image/avif' ) ) ) {
$formats['image/jpeg'] = 'image/avif';
$formats['image/png'] = 'image/avif';
// Fallback to WebP.
} elseif ( wp_image_editor_supports( array( 'mime_type' => 'image/webp' ) ) ) {
$formats['image/jpeg'] = 'image/webp';
$formats['image/png'] = 'image/webp';
}
}
return $formats;
}
add_filter( 'image_editor_output_format', 'zeitfresser_image_output_format' );
/**
* Mark images as optimized only when optimization is actually active.
*
* @param array $metadata Attachment metadata.
* @param int $attachment_id Attachment ID.
* @return array
*/
function zeitfresser_mark_new_images_optimized( $metadata, $attachment_id ) {
if ( ! wp_attachment_is_image( $attachment_id ) ) {
return $metadata;
}
$auto_enabled = get_theme_mod( 'ztfr_auto_optimize', true );
$force_enabled = ! empty( $GLOBALS['zeitfresser_force_image_optimization'] );
if ( ! $auto_enabled && ! $force_enabled ) {
return $metadata;
}
update_post_meta(
$attachment_id,
'_zeitfresser_media_optimized_version',
ZEITFRESSER_IMAGE_OPTIMIZATION_VERSION
);
return $metadata;
}
add_filter( 'wp_generate_attachment_metadata', 'zeitfresser_mark_new_images_optimized', 20, 2 );
/**
* Auto Optimize Hook
*/
add_filter(
'wp_generate_attachment_metadata',
'zeitfresser_auto_optimize_on_upload',
15,
2
);
function zeitfresser_auto_optimize_on_upload( $metadata, $attachment_id ) {
// Only images
if ( ! wp_attachment_is_image( $attachment_id ) ) {
return $metadata;
}
// Feature toggle
if ( ! get_theme_mod( 'ztfr_auto_optimize', true ) ) {
return $metadata;
}
$file = get_attached_file( $attachment_id );
if ( ! $file || ! file_exists( $file ) ) {
return $metadata;
}
// DO NOT overwrite captured original
if ( ! get_post_meta( $attachment_id, '_zeitfresser_original_file', true ) ) {
update_post_meta( $attachment_id, '_zeitfresser_original_file', $file );
}
// Mark optimized (IMPORTANT: no re-trigger here)
update_post_meta(
$attachment_id,
'_zeitfresser_media_optimized_version',
ZEITFRESSER_IMAGE_OPTIMIZATION_VERSION
);
return $metadata;
}
/**
* Auto Delete Hook
*/
add_filter(
'wp_generate_attachment_metadata',
'zeitfresser_auto_delete_original_after_upload',
30,
2
);
function zeitfresser_auto_delete_original_after_upload( $metadata, $attachment_id ) {
if ( ! wp_attachment_is_image( $attachment_id ) ) {
return $metadata;
}
$auto_enabled = get_theme_mod( 'ztfr_auto_optimize', true );
$delete_enabled = get_theme_mod( 'ztfr_auto_delete', false );
if ( ! $auto_enabled || ! $delete_enabled ) {
return $metadata;
}
$original = get_post_meta(
$attachment_id,
'_zeitfresser_original_file',
true
);
if ( ! $original ) {
return $metadata;
}
$ext = strtolower( pathinfo( $original, PATHINFO_EXTENSION ) );
// Skip modern formats
if ( in_array( $ext, [ 'webp', 'avif' ], true ) ) {
update_post_meta( $attachment_id, '_zeitfresser_original_deleted', 1 );
return $metadata;
}
// 🔥 Wenn nichts mehr existiert → fertig
if ( ! zeitfresser_original_family_exists( $attachment_id, $original ) ) {
update_post_meta( $attachment_id, '_zeitfresser_original_deleted', 1 );
return $metadata;
}
// 🔥 HIER passiert der Fix
zeitfresser_delete_original_family_files( $attachment_id, $original );
// Final check
if ( ! zeitfresser_original_family_exists( $attachment_id, $original ) ) {
update_post_meta( $attachment_id, '_zeitfresser_original_deleted', 1 );
}
return $metadata;
}
/**
* Keep generated image quality balanced for file size and visual fidelity.
*
* @param int $quality Proposed image quality.
* @param string $mime_type Image mime type.
* @return int
*/
function zeitfresser_image_quality( $quality, $mime_type = 'image/jpeg' ) {
$auto_enabled = get_theme_mod( 'ztfr_auto_optimize', true );
$force_enabled = ! empty( $GLOBALS['zeitfresser_force_image_optimization'] );
if ( ! $auto_enabled && ! $force_enabled ) {
return $quality;
}
return match ($mime_type) {
'image/avif' => 50,
'image/webp' => 75,
default => 82,
};
}
add_filter( 'wp_editor_set_quality', 'zeitfresser_image_quality', 10, 2 );
/**
* Improve responsive image sizes attribute.
*
* @param string $sizes Existing sizes attribute.
* @param array $size Requested image size.
* @return string
*/
function zeitfresser_responsive_image_sizes( $sizes, $size ) {
// Single post content
if ( is_singular() ) {
return '(max-width: 768px) 100vw, (max-width: 1200px) 720px, 720px';
}
// Archive / blog overview
if ( is_home() || is_front_page() || is_archive() || is_search() ) {
return '(max-width: 768px) 100vw, (max-width: 1200px) 50vw, 400px';
}
return $sizes;
}
add_filter( 'wp_calculate_image_sizes', 'zeitfresser_responsive_image_sizes', 10, 2 );
/**
* Register admin page
*/