feat: integrate Pi backend and Pi Web

2026-10-03 02:59:35 +00:00 · 2026-07-30 19:37:53 +08:00
commit 7392ab9dd7
1390 changed files with 337197 additions and 0 deletions
@@ -0,0 +1,63 @@
+export interface TerminalKeyEventLike {
+  key: string;
+  altKey: boolean;
+  ctrlKey: boolean;
+  metaKey: boolean;
+  shiftKey: boolean;
+}
+
+const SPECIAL_KEY_SEQUENCES: Record<string, string> = {
+  ArrowUp: "\x1b[A",
+  ArrowDown: "\x1b[B",
+  ArrowRight: "\x1b[C",
+  ArrowLeft: "\x1b[D",
+  Home: "\x1b[H",
+  End: "\x1b[F",
+  Insert: "\x1b[2~",
+  Delete: "\x1b[3~",
+  PageUp: "\x1b[5~",
+  PageDown: "\x1b[6~",
+  Escape: "\x1b",
+  Backspace: "\x7f",
+};
+
+const ALT_ARROW_SEQUENCES: Record<string, string> = {
+  ArrowLeft: "\x1bb",
+  ArrowRight: "\x1bf",
+  ArrowUp: "\x1bp",
+  ArrowDown: "\x1bn",
+};
+
+function legacyCtrlSequence(key: string): string | null {
+  if (key.length !== 1) return null;
+  const code = key.toUpperCase().charCodeAt(0);
+  if (code >= 64 && code <= 95) return String.fromCharCode(code & 0x1f);
+  if (key === "?") return "\x7f";
+  return null;
+}
+
+export function toTerminalKeyData(event: TerminalKeyEventLike): string | null {
+  if (event.metaKey) return null;
+  if (event.ctrlKey && !event.altKey && event.key.toLowerCase() === "v") return null;
+
+  if (event.ctrlKey && !event.altKey) {
+    const control = legacyCtrlSequence(event.key);
+    if (control) return control;
+  }
+
+  if (event.altKey && !event.ctrlKey) {
+    if (event.key === "Backspace") return "\x1b\x7f";
+    const arrow = ALT_ARROW_SEQUENCES[event.key];
+    if (arrow) return arrow;
+    if (event.key.length === 1) return `\x1b${event.key}`;
+  }
+
+  if (event.key === "Enter") return event.shiftKey ? "\n" : "\r";
+  if (event.key === "Tab") return event.shiftKey ? "\x1b[Z" : "\t";
+
+  return SPECIAL_KEY_SEQUENCES[event.key] ?? null;
+}
+
+export function asBracketedPaste(text: string): string {
+  return `\x1b[200~${text}\x1b[201~`;
+}