A Brackets extension to insert a promise-returning function stub.

main.js

/*jslint vars: true, plusplus: true, devel: true, nomen: true, regexp: true, indent: 4, maxerr: 50 */
/*global define, $, brackets */

define(function (require, exports, module) {
    "use strict";

    var CommandManager = brackets.getModule("command/CommandManager"),
        EditorManager  = brackets.getModule("editor/EditorManager"),
        Menus          = brackets.getModule("command/Menus");

    function handlePromiseFunction() {
        var editor = EditorManager.getFocusedEditor();
        if (editor) {
            var insertionPos = editor.getCursorPos();
            editor.document.replaceRange("\
function (){\n\
    var def = Q.defer();\n\
\n\
    def.resolve();\n\
\n\
    def.reject(err);\n\
\n\
    return def.promise;\n\
}\n", insertionPos);
        }
    }

    var PF_COMMAND_ID = "promisefunction.insert";
    CommandManager.register("Promise Function", PF_COMMAND_ID, handlePromiseFunction);

    var menu = Menus.getMenu(Menus.AppMenuBar.EDIT_MENU);
    menu.addMenuItem(PF_COMMAND_ID);
});