fix(builder): Image block placeholder no longer overridden by explicit src=""

BlocksPanel dropped a new Image block with an explicit `src=""` prop, which
overrides ImageBlock's `src = PLACEHOLDER_SRC` default parameter (defaults
only apply when a prop is undefined, not when it's an empty string). Craft
then persisted `src:''`, and the canvas rendered a broken-image icon instead
of the placeholder.

- ImageBlock render now falls back to PLACEHOLDER_SRC whenever src is falsy
  (belt-and-braces: also recovers any legacy saved src:'' state).
- BlocksPanel no longer passes src="" when dropping a new Image block, so
  the craft default applies.
- ImageStylePanel now restores the placeholder (instead of blanking to '')
  when the URL field is cleared.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
2026-07-12 19:45:28 -07:00
co-authored by Claude Opus 4.8
parent 3e43aee6e9
commit 802938ec1a
4 changed files with 67 additions and 4 deletions
+2 -2
View File
@@ -3,7 +3,7 @@ import { useNode, UserComponent } from '@craftjs/core';
import { cssPropsToString } from '../../utils/style-helpers';
import { escapeAttr, safeUrl } from '../../utils/escape';
const PLACEHOLDER_SRC = "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='300'%3E%3Cdefs%3E%3ClinearGradient id='bg' x1='0' y1='0' x2='0' y2='1'%3E%3Cstop offset='0%25' stop-color='%23f1f5f9'/%3E%3Cstop offset='100%25' stop-color='%23e2e8f0'/%3E%3C/linearGradient%3E%3C/defs%3E%3Crect fill='url(%23bg)' width='400' height='300' rx='12'/%3E%3Crect x='2' y='2' width='396' height='296' rx='10' fill='none' stroke='%23cbd5e1' stroke-width='2' stroke-dasharray='8 4'/%3E%3Cg transform='translate(200,110)'%3E%3Crect x='-28' y='-28' width='56' height='56' rx='12' fill='%23cbd5e1' opacity='0.5'/%3E%3Cpath d='M-12 8 L-4 -2 L2 4 L8 -6 L16 8Z' fill='%2394a3b8'/%3E%3Ccircle cx='-6' cy='-10' r='5' fill='%2394a3b8'/%3E%3C/g%3E%3Ctext x='200' y='160' text-anchor='middle' fill='%2364748b' font-family='Inter,sans-serif' font-size='15' font-weight='500'%3EDrop image here%3C/text%3E%3Ctext x='200' y='182' text-anchor='middle' fill='%2394a3b8' font-family='Inter,sans-serif' font-size='12'%3Eor click to upload%3C/text%3E%3C/svg%3E";
export const PLACEHOLDER_SRC = "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='300'%3E%3Cdefs%3E%3ClinearGradient id='bg' x1='0' y1='0' x2='0' y2='1'%3E%3Cstop offset='0%25' stop-color='%23f1f5f9'/%3E%3Cstop offset='100%25' stop-color='%23e2e8f0'/%3E%3C/linearGradient%3E%3C/defs%3E%3Crect fill='url(%23bg)' width='400' height='300' rx='12'/%3E%3Crect x='2' y='2' width='396' height='296' rx='10' fill='none' stroke='%23cbd5e1' stroke-width='2' stroke-dasharray='8 4'/%3E%3Cg transform='translate(200,110)'%3E%3Crect x='-28' y='-28' width='56' height='56' rx='12' fill='%23cbd5e1' opacity='0.5'/%3E%3Cpath d='M-12 8 L-4 -2 L2 4 L8 -6 L16 8Z' fill='%2394a3b8'/%3E%3Ccircle cx='-6' cy='-10' r='5' fill='%2394a3b8'/%3E%3C/g%3E%3Ctext x='200' y='160' text-anchor='middle' fill='%2364748b' font-family='Inter,sans-serif' font-size='15' font-weight='500'%3EDrop image here%3C/text%3E%3Ctext x='200' y='182' text-anchor='middle' fill='%2394a3b8' font-family='Inter,sans-serif' font-size='12'%3Eor click to upload%3C/text%3E%3C/svg%3E";
interface ImageBlockProps {
src?: string;
@@ -66,7 +66,7 @@ export const ImageBlock: UserComponent<ImageBlockProps> = ({
imgRef.current = ref;
if (ref) connect(drag(ref));
}}
src={src}
src={src || PLACEHOLDER_SRC}
alt={alt || 'Image'}
onDrop={handleDrop}
onDragOver={handleDragOver}