← All changes | app/Draft/Controllers/ImageController.php +88 -0 3.0.6 → trunk View file →

		@@ -23,8 +23,16 @@
23	23
24	24	class ImageController
25	25	{
26	26	/**
	27	+ * Must match `PILL_RIGHT_EDGE` in `src/Shared/lib/ai-label.js`.
	28	+ *
	29	+ * @var float
	30	+ */
	31	+ // phpcs:ignore PSR12.Properties.ConstantVisibility.NotFound -- 7.0 floor: no const visibility
	32	+ const PILL_RIGHT_EDGE = 0.85;
	33	+
	34	+ /**
27	35	* Upload the provided image
28	36	*
29	37	* @param \WP_REST_Request $request - The request.
30	38	* @return \WP_REST_Response
		@@ -38,8 +46,21 @@
38	46	}
39	47
40	48	$imageId = \media_sideload_image($request->get_param('source'), 0, null, 'id');
41	49
	50	+ // Without this the caller can't tell a failed upload from a declined one.
	51	+ if (\is_wp_error($imageId)) {
	52	+ return new \WP_REST_Response(['message' => $imageId->get_error_message()], 500);
	53	+ }
	54	+
	55	+ if ($request->get_param('ai_generated')) {
	56	+ update_post_meta($imageId, 'extendify_ai_generated', true);
	57	+ $label = $request->get_file_params()['disclosure_label'] ?? null;
	58	+ if (isset($label['tmp_name'])) {
	59	+ self::stampImage($imageId, $label['tmp_name']);
	60	+ }
	61	+ }
	62	+
42	63	if ($request->get_param('alt_text')) {
43	64	update_post_meta(
44	65	$imageId,
45	66	'_wp_attachment_image_alt',
		@@ -68,6 +89,73 @@
68	89	'source_url' => wp_get_attachment_url($imageId),
69	90	'alt_text' => $altText,
70	91	]
71	92	);
	93	+ }
	94	+
	95	+ /**
	96	+ * Composite the client-rendered disclosure label onto the attachment. The
	97	+ * PNG already includes its border, unlike the canvas path's fill box.
	98	+ *
	99	+ * @param int $imageId - The attachment ID.
	100	+ * @param string $labelPath - Path to the uploaded label PNG.
	101	+ * @return void
	102	+ */
	103	+ private static function stampImage($imageId, $labelPath)
	104	+ {
	105	+ $file = \get_attached_file($imageId);
	106	+ $type = $file ? (\wp_check_filetype($file)['type'] ?? null) : null;
	107	+ $loaders = [
	108	+ 'image/jpeg' => 'imagecreatefromjpeg',
	109	+ 'image/png' => 'imagecreatefrompng',
	110	+ 'image/webp' => 'imagecreatefromwebp',
	111	+ ];
	112	+ if (!isset($loaders[$type]) || !function_exists($loaders[$type]) || !is_file($file)) {
	113	+ return;
	114	+ }
	115	+
	116	+ // phpcs:ignore WordPress.PHP.NoSilencedErrors, Generic.PHP.NoSilencedErrors.Discouraged
	117	+ $image = @call_user_func($loaders[$type], $file);
	118	+ // phpcs:ignore WordPress.PHP.NoSilencedErrors, Generic.PHP.NoSilencedErrors.Discouraged
	119	+ $label = @imagecreatefrompng($labelPath);
	120	+ if (!$image || !$label) {
	121	+ return;
	122	+ }
	123	+
	124	+ $width = imagesx($image);
	125	+ $height = imagesy($image);
	126	+ // The client renders the label at a 48px font; the canvas stamp uses 2% of the shorter side.
	127	+ $scale = max(12, round(min($width, $height) * 0.02)) / 48;
	128	+ $labelWidth = (int) round(imagesx($label) * $scale);
	129	+ $labelHeight = (int) round(imagesy($label) * $scale);
	130	+ imagealphablending($image, true);
	131	+ imagecopyresampled(
	132	+ $image,
	133	+ $label,
	134	+ (int) round(($width * self::PILL_RIGHT_EDGE) - $labelWidth),
	135	+ (int) round(($height - $labelHeight) / 2),
	136	+ 0,
	137	+ 0,
	138	+ $labelWidth,
	139	+ $labelHeight,
	140	+ imagesx($label),
	141	+ imagesy($label)
	142	+ );
	143	+
	144	+ if ($type === 'image/jpeg') {
	145	+ imagejpeg($image, $file, 90);
	146	+ }
	147	+
	148	+ if ($type === 'image/png') {
	149	+ imagesavealpha($image, true);
	150	+ imagepng($image, $file);
	151	+ }
	152	+
	153	+ if ($type === 'image/webp') {
	154	+ imagewebp($image, $file, 90);
	155	+ }
	156	+
	157	+ // Sub-sizes were generated from the unstamped original; rebuild them.
	158	+ $metadata = \wp_generate_attachment_metadata($imageId, $file);
	159	+ \wp_update_attachment_metadata($imageId, $metadata);
72	160	}
73	161	}