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feat(app): disallow duplicate attachments (#39464)

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Aarav Sareen 2026-07-30 14:32:15 +05:30 • committed by GitHub
commit eca5e68a5e
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21 changed files with 124 additions and 3 deletions
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22
packages/session-ui/src/v2/components/prompt-input/attachments.ts
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@ -74,6 +74,7 @@ export type PromptInputV2AttachmentConfig = {
directory: () => string
isDialogActive: () => boolean
warn: () => void
duplicate: () => void
onError: (error: unknown) => void
readClipboardImage?: () => Promise<File | null>
getPathForFile?: (file: File) => string
@ -94,7 +95,7 @@ export function createPromptInputV2Attachments(
if (!editor) return
return { prompt, cursor: prompt.cursor() ?? cursorPosition(editor) }
}
const add = async (file: File, toast = true, target = capture()) => {
const add = async (file: File, toast = true, target = capture(), clipboard = false) => {
if (!target) return false
const mime = await attachmentMime(file)
if (!mime) {
@ -103,11 +104,26 @@ export function createPromptInputV2Attachments(
}
const url = await dataUrl(file, mime)
if (!url) return false
const sourcePath = input.getPathForFile?.(file) || undefined
// Native clipboard images arrive with a fresh timestamped filename on every paste, so identical
// clipboard content is matched on bytes alone.
const duplicate = target.prompt
.current()
.some(
(part) =>
part.type === "image" &&
part.dataUrl === url &&
(sourcePath ? part.sourcePath === sourcePath : !part.sourcePath && (clipboard || part.filename === file.name)),
)
if (duplicate) {
input.duplicate()
return true
}
const attachment: PromptInputV2Attachment = {
type: "image",
id: globalThis.crypto?.randomUUID?.() ?? Math.random().toString(16).slice(2),
filename: file.name,
sourcePath: input.getPathForFile?.(file) || undefined,
sourcePath,
mime,
dataUrl: url,
}
@ -141,7 +157,7 @@ export function createPromptInputV2Attachments(
const plainText = clipboardData.getData("text/plain") ?? ""
if (input.readClipboardImage && !plainText) {
const file = await input.readClipboardImage()
if (file && (await add(file, true, target))) return
if (file && (await add(file, true, target, true))) return
}
if (!plainText) return
const text = plainText.includes("\r") ? plainText.replace(/\r\n?/g, "\n") : plainText