Method postMessage

vscode/src/extension.ts:1239–1291

(message: ExtensionToWebviewMessage)

  }

  private postMessage(message: ExtensionToWebviewMessage): void {
    const shouldLog = message.type !== "chatEvent" && message.type !== "orpcStreamData";

    if (!this.view) {
      if (shouldLog) {
        muxLogDebug("mux.chatView: -> drop postMessage (no view)", {
          traceId: this.traceId,
          type: message.type,
        });
      }
      return;
    }

    if (!this.isWebviewReady) {
      if (shouldLog) {
        muxLogDebug("mux.chatView: -> drop postMessage (webview not ready)", {
          traceId: this.traceId,
          type: message.type,
        });
      }
      return;
    }

    const seq = this.nextWebviewMessageSeq++;
    const meta = {
      traceId: this.traceId,
      seq,
      sentAtMs: Date.now(),
    };

    const envelope: Record<string, unknown> = { __muxMeta: meta, ...message };

    void this.view.webview.postMessage(envelope).then(
      (delivered) => {
        if (shouldLog) {
          muxLogDebug("mux.chatView: -> postMessage", {
            traceId: this.traceId,
            seq,
            type: message.type,
            delivered,
          });
        }
      },
      (error) => {
        muxLogWarn("mux.chatView: postMessage failed", {
          traceId: this.traceId,
          seq,
          type: message.type,
          error: formatError(error),
        });
      }
    );
  }

  private async onWebviewMessage(raw: unknown): Promise<void> {
    const msg = parseWebviewToExtensionMessage(raw);