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fix(app): large text pasted into prompt-input causes main thread lock

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Adam
2026-02-20 07:38:05 -06:00
parent 4e9ef3ecc1
commit 7e681b0bc0
4 changed files with 92 additions and 15 deletions
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15
packages/app/src/components/prompt-input/editor-dom.ts
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@@ -1,5 +1,20 @@
const MAX_BREAKS = 200
export function createTextFragment(content: string): DocumentFragment {
const fragment = document.createDocumentFragment()
let breaks = 0
for (const char of content) {
if (char !== "\n") continue
breaks += 1
if (breaks > MAX_BREAKS) {
const tail = content.endsWith("\n")
const text = tail ? content.slice(0, -1) : content
if (text) fragment.appendChild(document.createTextNode(text))
if (tail) fragment.appendChild(document.createElement("br"))
return fragment
}
}
const segments = content.split("\n")
segments.forEach((segment, index) => {
if (segment) {