Function onKeypress

packages/jest-core/src/watch.ts:349–455

(key: string)

  };

  const onKeypress = (key: string) => {
    if (key === KEYS.CONTROL_C || key === KEYS.CONTROL_D) {
      if (typeof stdin.setRawMode === 'function') {
        stdin.setRawMode(false);
      }
      outputStream.write('\n');
      exit(0);
      return;
    }

    if (activePlugin != null && activePlugin.onKey) {
      // if a plugin is activate, Jest should let it handle keystrokes, so ignore
      // them here
      activePlugin.onKey(key);
      return;
    }

    // Abort test run
    const pluginKeys = getSortedUsageRows(watchPlugins, globalConfig).map(
      usage => Number(usage.key).toString(16),
    );
    if (
      isRunning &&
      testWatcher &&
      ['q', KEYS.ENTER, 'a', 'o', 'f', ...pluginKeys].includes(key)
    ) {
      testWatcher.setState({interrupted: true});
      return;
    }

    const matchingWatchPlugin = filterInteractivePlugins(
      watchPlugins,
      globalConfig,
    ).find(plugin => getPluginKey(plugin, globalConfig) === key);

    if (matchingWatchPlugin != null) {
      if (isRunning) {
        testWatcher.setState({interrupted: true});
        return;
      }
      // "activate" the plugin, which has jest ignore keystrokes so the plugin
      // can handle them
      activePlugin = matchingWatchPlugin;
      if (activePlugin.run) {
        activePlugin.run(globalConfig, updateConfigAndRun).then(
          async shouldRerun => {
            activePlugin = null;
            if (shouldRerun) {
              await updateConfigAndRun();
            }
          },
          () => {
            activePlugin = null;
            onCancelPatternPrompt();
          },
        );
      } else {
        activePlugin = null;