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feat(prompt-input): add file property to attachment messages for pers… #261

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5 changes: 5 additions & 0 deletions .changeset/proud-pots-report.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
"ai-elements": minor
---

feat(prompt-input): Add file property to attachment messages for persistent storage
18 changes: 10 additions & 8 deletions packages/elements/src/prompt-input.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -75,7 +75,7 @@ import {
// ============================================================================

export type AttachmentsContext = {
files: (FileUIPart & { id: string })[];
files: (FileUIPart & { id: string, file?: File })[];
add: (files: File[] | FileList) => void;
remove: (id: string) => void;
clear: () => void;
Expand Down Expand Up @@ -151,7 +151,7 @@ export function PromptInputProvider({

// ----- attachments state (global when wrapped)
const [attachmentFiles, setAttachmentFiles] = useState<
(FileUIPart & { id: string })[]
(FileUIPart & { id: string, file?: File })[]
>([]);
const fileInputRef = useRef<HTMLInputElement | null>(null);
const openRef = useRef<() => void>(() => {});
Expand All @@ -170,6 +170,7 @@ export function PromptInputProvider({
url: URL.createObjectURL(file),
mediaType: file.type,
filename: file.name,
file,
}))
)
);
Expand Down Expand Up @@ -277,7 +278,7 @@ export const usePromptInputAttachments = () => {
};

export type PromptInputAttachmentProps = HTMLAttributes<HTMLDivElement> & {
data: FileUIPart & { id: string };
data: FileUIPart & { id: string; file?: File };
className?: string;
};

Expand Down Expand Up @@ -376,7 +377,7 @@ export type PromptInputAttachmentsProps = Omit<
HTMLAttributes<HTMLDivElement>,
"children"
> & {
children: (attachment: FileUIPart & { id: string }) => ReactNode;
children: (attachment: FileUIPart & { id: string; file?: File }) => ReactNode;
};

export function PromptInputAttachments({
Expand Down Expand Up @@ -429,7 +430,7 @@ export const PromptInputActionAddAttachments = ({

export type PromptInputMessage = {
text: string;
files: FileUIPart[];
files: (FileUIPart & { file?: File })[];
};

export type PromptInputProps = Omit<
Expand Down Expand Up @@ -477,7 +478,7 @@ export const PromptInput = ({
const formRef = useRef<HTMLFormElement | null>(null);

// ----- Local attachments (only used when no provider)
const [items, setItems] = useState<(FileUIPart & { id: string })[]>([]);
const [items, setItems] = useState<(FileUIPart & { id: string; file?: File })[]>([]);
const files = usingProvider ? controller.attachments.files : items;

// Keep a ref to files for cleanup on unmount (avoids stale closure)
Expand Down Expand Up @@ -537,14 +538,15 @@ export const PromptInput = ({
message: "Too many files. Some were not added.",
});
}
const next: (FileUIPart & { id: string })[] = [];
const next: (FileUIPart & { id: string, file?: File })[] = [];
for (const file of capped) {
next.push({
id: nanoid(),
type: "file",
url: URL.createObjectURL(file),
mediaType: file.type,
filename: file.name,
file,
});
}
return prev.concat(next);
Expand Down Expand Up @@ -729,7 +731,7 @@ export const PromptInput = ({
return item;
})
)
.then((convertedFiles: FileUIPart[]) => {
.then((convertedFiles: (FileUIPart & { file?: File })[]) => {
try {
const result = onSubmit({ text, files: convertedFiles }, event);

Expand Down