added Image::isTypeSupported()

Author: dg

src/Utils/Image.php

@@ -310,6 +310,23 @@ public static function typeToMimeType(int $type): string
 	}
 
 
+	/**
+	 * @param  ImageType::*  $type
+	 */
+	public static function isTypeSupported(int $type): bool
+	{
+		return (bool) (imagetypes() & match ($type) {
+			ImageType::JPEG => IMG_JPG,
+			ImageType::PNG => IMG_PNG,
+			ImageType::GIF => IMG_GIF,
+			ImageType::WEBP => IMG_WEBP,
+			ImageType::AVIF => 256, // IMG_AVIF,
+			ImageType::BMP => IMG_BMP,
+			default => 0,
+		});
+	}
+
+
 	/**
 	 * Wraps GD image.
 	 */

tests/Utils/Image.factories.phpt

@@ -27,7 +27,7 @@ test('', function () {
 
 
 test('', function () {
-	if (!function_exists('imagecreatefromwebp')) {
+	if (!Image::isTypeSupported(Image::WEBP)) {
 		return;
 	}
 
@@ -39,7 +39,7 @@ test('', function () {
 
 
 test('', function () {
-	if (!function_exists('imagecreatefromavif')) {
+	if (!Image::isTypeSupported(Image::AVIF)) {
 		return;
 	}
 

tests/Utils/Image.isTypeSupported.phpt

@@ -0,0 +1,19 @@
+<?php
+
+/**
+ * @phpExtension gd
+ */
+
+declare(strict_types=1);
+
+use Nette\Utils\Image;
+use Tester\Assert;
+
+
+require __DIR__ . '/../bootstrap.php';
+
+
+Assert::true(Image::isTypeSupported(Image::GIF));
+Assert::true(Image::isTypeSupported(Image::JPEG));
+Assert::same(function_exists('imagecreatefromwebp'), Image::isTypeSupported(Image::WEBP));
+Assert::same(function_exists('imagecreatefromavif'), Image::isTypeSupported(Image::AVIF));

tests/Utils/Image.save.phpt

@@ -32,7 +32,7 @@ test('', function () use ($main) {
 
 
 test('', function () use ($main) {
-	if (!function_exists('imagewebp')) {
+	if (!Image::isTypeSupported(Image::WEBP)) {
 		return;
 	}
 
@@ -47,7 +47,7 @@ test('', function () use ($main) {
 
 
 test('', function () use ($main) {
-	if (!function_exists('imageavif')) {
+	if (!Image::isTypeSupported(Image::AVIF)) {
 		return;
 	}
 

tests/Utils/Image.send.phpt

@@ -42,7 +42,7 @@ test('', function () use ($main) {
 
 
 test('', function () use ($main) {
-	if (!function_exists('imagewebp')) {
+	if (!Image::isTypeSupported(Image::WEBP)) {
 		return;
 	}