fix: attachments broken

toju-app/src/app/domains/attachment/domain/logic/attachment-display-url.rules.spec.ts

@@ -0,0 +1,20 @@
+import {
+  isBlobObjectUrl,
+  isFileProtocolObjectUrl,
+  needsBlobObjectUrlForInlineDisplay
+} from './attachment-display-url.rules';
+
+describe('attachment display url rules', () => {
+  it('detects blob and file protocol urls', () => {
+    expect(isBlobObjectUrl('blob:http://localhost/abc')).toBe(true);
+    expect(isBlobObjectUrl('file:///tmp/video.mp4')).toBe(false);
+    expect(isFileProtocolObjectUrl('file:///tmp/video.mp4')).toBe(true);
+    expect(isFileProtocolObjectUrl('blob:http://localhost/abc')).toBe(false);
+  });
+
+  it('requires blob urls for inline display when missing or file protocol', () => {
+    expect(needsBlobObjectUrlForInlineDisplay(undefined)).toBe(true);
+    expect(needsBlobObjectUrlForInlineDisplay('file:///appdata/image.png')).toBe(true);
+    expect(needsBlobObjectUrlForInlineDisplay('blob:http://localhost/abc')).toBe(false);
+  });
+});

toju-app/src/app/domains/attachment/domain/logic/attachment-display-url.rules.ts

@@ -0,0 +1,11 @@
+export function isBlobObjectUrl(url: string): boolean {
+  return url.startsWith('blob:');
+}
+
+export function isFileProtocolObjectUrl(url: string): boolean {
+  return url.startsWith('file:');
+}
+
+export function needsBlobObjectUrlForInlineDisplay(objectUrl?: string): boolean {
+  return !objectUrl || isFileProtocolObjectUrl(objectUrl);
+}