Userscripts.org

There are 5 previous versions of this script.

// ==UserScript==
// @name        Autocomplete On
// @namespace   http://userscripts.org/scripts/show/7347
// @description Searches for autocomplete attributes in the page and sets the value to on.
// @include     *
// ==/UserScript==

location.href = "javascript:(" + function() {
    function enableAutocomplete()
    {
        // Get all autocomplete attributes
        var nodeSnapshot = document.evaluate('//*[@autocomplete]', document, null,
                                             XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null),
            numNodeValues = nodeSnapshot.snapshotLength - 1,
            focusedAndBlurred = false,
            formNode = null,
            numFormElements = 0,
            scrollX = window.pageXOffset,
            scrollY = window.pageYOffset,
            tabPressed = false;
        // Loop through all the attributes found in the snapshot
        for (var i = numNodeValues; i >= 0; i--) {
            // Get the attribute snapshot object and
            // Change the attribute value to "on"
            nodeSnapshot.snapshotItem(i).setAttribute('autocomplete', 'on');
            // If element is of type text and autocomplete is set, it's probably the username
            if (nodeSnapshot.snapshotItem(i).getAttribute('type') == 'text') {
                // Blurring and focusing allows gecko to make suggestions immediately when double clicking username
                nodeSnapshot.snapshotItem(i).focus();
                nodeSnapshot.snapshotItem(i).blur();
                focusedAndBlurred = true;
            }
            // Remember the form node if autocomplete was set on it
            if (nodeSnapshot.snapshotItem(i).nodeName.toLowerCase() == 'form') {
                formNode = nodeSnapshot.snapshotItem(i);
                numFormElements = formNode.elements.length - 1;
            }
        }
        // If formNode was set and username was not focused and blurred, then autocomplete was only set on the form node
        if (formNode != null && ! focusedAndBlurred) {
            for (var i = numFormElements; i >= 0; i--) {
                // Blur and focus every text field in the form ending with the first field
                if (formNode.elements[i].getAttribute('type') == 'text') {
                    formNode.elements[i].focus();
                    formNode.elements[i].blur();
                    focusedAndBlurred = true;
                }
            }
        }
        // If form fields were focused and blurred, return to the original scroll position and first tab position
        if (focusedAndBlurred) {
            /*
                The first time tab is pressed, focus on the first text input in a form with a password input
                or first element that can be focused on the page
            */
            window.addEventListener('keyup', function(e)
            {
                if (tabPressed == false && e.keyCode == 9) {
                    e.preventDefault();
                    // Focus on the first form text input field of a password form if it exists
                    nodeSnapshot = document.evaluate('//input[@type="password"]/ancestor::form//input[@type="text"]',
                        document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null);
                    // If a form with a password and text input is not found, focus on the first element on the page
                    if (nodeSnapshot.singleNodeValue == null) {
                        nodeSnapshot = document.evaluate('//a | //button | //frame | //iframe | //img | //object ' +
                          '| //select | //textarea | //input[not(@type="hidden")]', document, null,
                          XPathResult.FIRST_ORDERED_NODE_TYPE, null);
                    }
                    nodeSnapshot.singleNodeValue.focus();
                    tabPressed = true;
                }
            }, true);
            window.scrollTo(scrollX, scrollY);
        }
    }
    function newSubmit()
    {
        enableAutocomplete();
        if (this._submit !== undefined) {
            this._submit();
        }
    }
    // Override DOM submit
    HTMLFormElement.prototype._submit = HTMLFormElement.prototype.submit;
    HTMLFormElement.prototype.submit = newSubmit;
    // Run enable on form submit and page load
    window.addEventListener('submit', newSubmit, true);
    window.addEventListener('load', enableAutocomplete, false);
} + ")()";