syn/dist/amd/key.support.js

/*syn@0.14.0#key.support*/
define([
    'require',
    'exports',
    'module',
    './synthetic',
    './key'
], function (require, exports, module) {
    var syn = require('./synthetic');
    require('./key');
    if (!syn.config.support) {
        (function checkForSupport() {
            if (!document.body) {
                return syn.schedule(checkForSupport, 1);
            }
            var div = document.createElement('div'), checkbox, submit, form, anchor, textarea, inputter, one, doc;
            doc = document.documentElement;
            div.innerHTML = '<form id=\'outer\'>' + '<input name=\'checkbox\' type=\'checkbox\'/>' + '<input name=\'radio\' type=\'radio\' />' + '<input type=\'submit\' name=\'submitter\'/>' + '<input type=\'input\' name=\'inputter\'/>' + '<input name=\'one\'>' + '<input name=\'two\'/>' + '<a href=\'#abc\'></a>' + '<textarea>1\n2</textarea>' + '</form>';
            doc.insertBefore(div, doc.firstElementChild || doc.children[0]);
            form = div.firstChild;
            checkbox = form.childNodes[0];
            submit = form.childNodes[2];
            anchor = form.getElementsByTagName('a')[0];
            textarea = form.getElementsByTagName('textarea')[0];
            inputter = form.childNodes[3];
            one = form.childNodes[4];
            form.onsubmit = function (ev) {
                if (ev.preventDefault) {
                    ev.preventDefault();
                }
                syn.support.keypressSubmits = true;
                ev.returnValue = false;
                return false;
            };
            syn.__tryFocus(inputter);
            syn.trigger(inputter, 'keypress', '\r');
            syn.trigger(inputter, 'keypress', 'a');
            syn.support.keyCharacters = inputter.value === 'a';
            inputter.value = 'a';
            syn.trigger(inputter, 'keypress', '\b');
            syn.support.backspaceWorks = inputter.value === '';
            inputter.onchange = function () {
                syn.support.focusChanges = true;
            };
            syn.__tryFocus(inputter);
            syn.trigger(inputter, 'keypress', 'a');
            syn.__tryFocus(form.childNodes[5]);
            syn.trigger(inputter, 'keypress', 'b');
            syn.support.keysOnNotFocused = inputter.value === 'ab';
            syn.bind(anchor, 'click', function (ev) {
                if (ev.preventDefault) {
                    ev.preventDefault();
                }
                syn.support.keypressOnAnchorClicks = true;
                ev.returnValue = false;
                return false;
            });
            syn.trigger(anchor, 'keypress', '\r');
            syn.support.textareaCarriage = textarea.value.length === 4;
            syn.support.oninput = 'oninput' in one;
            doc.removeChild(div);
            syn.support.ready++;
        }());
    } else {
        syn.helpers.extend(syn.support, syn.config.support);
    }
});