infusion/tests/test-core/utils/js/DebugFocus.js

Infusion is an application framework for developing flexible stuff with JavaScript

/*
Copyright The Infusion copyright holders
See the AUTHORS.md file at the top-level directory of this distribution and at
https://github.com/fluid-project/infusion/raw/main/AUTHORS.md.

Licensed under the Educational Community License (ECL), Version 2.0 or the New
BSD license. You may not use this file except in compliance with one these
Licenses.

You may obtain a copy of the ECL 2.0 License and BSD License at
https://github.com/fluid-project/infusion/raw/main/Infusion-LICENSE.txt
*/

// TODO: This is a very old-style file that is largely kept around for reference purposes, and
// has largely been supplanted by new support for bubbling focus events in more recent versions
// of jQuery - please communicate with the Fluid team if you find yourself thinking of using it

"use strict";

fluid.debug = (function () {

    var outputEventDetails = function (eventType, event, caughtBy) {
        fluid.log(new Date() + " " + eventType + " was called on target " + fluid.dumpEl(event.target) + ", caught by " + fluid.dumpEl(caughtBy));
    };

    var focusOutputter = function (evt) {
        outputEventDetails("Focus", evt, this);
    };

    var blurOutputter = function (evt) {
        outputEventDetails("Blur", evt, this);
    };

    var addFocusChangeListeners = function (jQueryElements) {
        jQueryElements.on("focus", focusOutputter);
        jQueryElements.on("blur", blurOutputter);
    };

    return {
        listenForFocusEvents: function (context) {
            fluid.setLogging(true);
            var focussableElements  = [];

            var everything = context ? jQuery("*", context) : jQuery("*");
            fluid.log("Everything: " + everything.length);
            everything.each(function () {
                //if (jQuery(this).hasTabindex()) {
                focussableElements.push(this);
                // }
            });

            addFocusChangeListeners(jQuery(focussableElements));
        }
    }; // End of public return.
}) (); // End of fluid.debug namespace.

// Call listenForFocusEvents when the document is ready.
jQuery(function () {
    fluid.debug.listenForFocusEvents();
});