File size: 1,852 Bytes
4e23b01 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | const PASTE_BURST_MIN_CHARS = 8;
const PASTE_BURST_CHAR_INTERVAL_MS = 8;
const PASTE_BURST_ACTIVE_IDLE_TIMEOUT_MS = 30;
const PASTE_ENTER_SUPPRESS_WINDOW_MS = 120;
/**
* Detects non-bracketed paste bursts: a rapid stream of plain characters
* followed by Enter, where a bare Enter would otherwise submit the draft.
*
* This is a heuristic fallback for terminals that do not surface bracketed
* paste markers. It intentionally does not buffer characters; the editor still
* inserts typed text normally, and this class only decides whether an imminent
* Enter should insert a newline instead of submitting.
*/
export class PasteBurst {
private lastPlainCharAt?: number;
private consecutivePlainChars = 0;
private activeUntil = 0;
private enterSuppressUntil = 0;
onPlainChar(now: number): void {
if (
this.lastPlainCharAt !== undefined &&
now - this.lastPlainCharAt <= PASTE_BURST_CHAR_INTERVAL_MS
) {
this.consecutivePlainChars++;
} else {
this.consecutivePlainChars = 1;
}
this.lastPlainCharAt = now;
if (this.consecutivePlainChars >= PASTE_BURST_MIN_CHARS) {
this.extendWindow(now);
}
}
shouldInsertNewlineInsteadOfSubmit(now: number): boolean {
if (now <= this.activeUntil || now <= this.enterSuppressUntil) {
return true;
}
return (
this.lastPlainCharAt !== undefined &&
this.consecutivePlainChars >= PASTE_BURST_MIN_CHARS &&
now - this.lastPlainCharAt <= PASTE_BURST_CHAR_INTERVAL_MS
);
}
extendWindow(now: number): void {
this.activeUntil = now + PASTE_BURST_ACTIVE_IDLE_TIMEOUT_MS;
this.enterSuppressUntil = now + PASTE_ENTER_SUPPRESS_WINDOW_MS;
}
reset(): void {
this.lastPlainCharAt = undefined;
this.consecutivePlainChars = 0;
this.activeUntil = 0;
this.enterSuppressUntil = 0;
}
}
|