ile/local;1"].createInstance(Ci.nsIFile);
      file.initWithPath(path);
      callback(file);
      return;
    } catch (ex) {
      callback(null);
      return;
    }
  }
  if (path) {
    // "path" is an nsIFile
    callback(path);
    return;
  }

  const fp = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
  const mode = toSave ? fp.modeSave : fp.modeOpen;
  const key = toSave ? "saveStyleSheet" : "importStyleSheet";
  const fpCallback = function (result) {
    if (result == Ci.nsIFilePicker.returnCancel) {
      callback(null);
    } else {
      callback(fp.file);
    }
  };

  if (toSave && suggestedFilename) {
    fp.defaultString = suggestedFilename;
  }

  fp.init(parentWindow.browsingContext, getString(key + ".title"), mode);
  fp.appendFilter(getString(key + ".filter"), "*.css");
  fp.appendFilters(fp.filterAll);
  fp.open(fpCallback);
}

/**
 * Returns a Popup Menu for the Options ("gear") Button
 *
 * @param {function} toggleOrigSources
 *        To toggle the original source pref
 * @param {function} toggleAtRulesSidebar
 *        To toggle the pref to show at-rules side bar
 * @return {object} popupMenu
 *         A Menu object holding the MenuItems
 */
export function optionsPopupMenu(toggleOrigSources, toggleAtRulesSidebar) {
  const popupMenu = new lazy.Menu();
  popupMenu.append(
    new lazy.MenuItem({
      id: "options-origsources",
      label: getString("showOriginalSources.label"),
      accesskey: getString("showOriginalSources.accesskey"),
      type: "checkbox",
      checked: Services.prefs.getBoolPref(PREF_ORIG_SOURCES),
      click: () => toggleOrigSources(),
    })
  );
  popupMenu.append(
    new lazy.MenuItem({
      id: "options-show-at-rules",
      label: getString("showAtRulesSidebar.label"),
      accesskey: getString("showAtRulesSidebar.accesskey"),
      type: "checkbox",
      checked: Services.prefs.getBoolPref(PREF_AT_RULES_SIDEBAR),
      click: () => toggleAtRulesSidebar(),
    })
  );

  return popupMenu;
}
PK