By Mark Pilgrim
—
Last update
Jul 21, 2005
—
Installed
2,769 times.
// Access Bar
// version 0.8 BETA!
// 2005-07-08
//
// --------------------------------------------------------------------
//
// This is a Greasemonkey user script that shows accesskeys defined
// on a web page. Example page: http://diveintomark.org/
//
// To install, you need Greasemonkey: http://greasemonkey.mozdev.org/
// Then restart Firefox and revisit this script.
// Under Tools, there will be a new menu item to "Install User Script".
// Accept the default configuration and install.
//
// To uninstall, go to Tools/Manage User Scripts,
// select "Access Bar", and click Uninstall.
//
// --------------------------------------------------------------------
//
// ==UserScript==
// @name Access Bar
// @namespace http://diveintomark.org/projects/greasemonkey/
// @description show accesskeys defined on page
// @include *
// ==/UserScript==
/* BEGIN LICENSE BLOCK
Copyright (C) 2005 Mark Pilgrim
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You can download a copy of the GNU General Public License at
http://diveintomark.org/projects/greasemonkey/COPYING
or get a free printed copy by writing to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
END LICENSE BLOCK */
(function() {
function addGlobalStyle(css) {
var head, style;
head = document.getElementsByTagName('head')[0];
if (!head) { return; }
style = document.createElement('style');
style.type = 'text/css';
style.innerHTML = css;
head.appendChild(style);
}
function quicksort(ar, start, end) {
var tmp, low, high, pivot;
if (end == start+1) {
if (ar[start] > ar[end]) {
tmp = ar[start]; ar[start] = ar[end]; ar[end] = tmp;
}
return;
}
pivot = ar[parseInt((start + end) / 2)];
ar[parseInt((start + end) / 2)] = ar[start];
ar[start] = pivot;
low = start + 1;
high = end;
do {
while ((low <= high) && (ar[low] <= pivot)) { low += 1; }
while (ar[high] > pivot) { high -= 1; }
if (low < high) {
tmp = ar[low]; ar[low] = ar[high]; ar[high] = tmp;
}
} while (low < high);
ar[start] = ar[high];
ar[high] = pivot;
if (start < high - 1) { quicksort(ar, start, high - 1); }
if (high + 1 < end) { quicksort(ar, high + 1, end); }
}
var akeys, descriptions, a, i, desc, label, div;
akeys = document.evaluate(
"//*[@accesskey]",
document,
null,
XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
null);
if (!akeys.snapshotLength) { return; }
descriptions = new Array();
desc = '';
for (i = 0; i < akeys.snapshotLength; i += 1) {
a = akeys.snapshotItem(i);
desctext = '';
if (a.nodeName == 'INPUT') {
label = document.evaluate("//label[@for='" + a.name + "']",
document,
null,
XPathResult.FIRST_ORDERED_NODE_TYPE,
null).singleNodeValue;
if (label) {
desctext = label.title;
if (!desctext) { desctext = label.textContent; }
}
}
if (!desctext) { desctext = a.textContent; }
if (!desctext) { desctext = a.title; }
if (!desctext) { desctext = a.name; }
if (!desctext) { desctext = a.id; }
if (!desctext) { desctext = a.href; }
if (!desctext) { desctext = a.value; }
desc = '<strong>[' +
a.getAttribute('accesskey').toUpperCase() + ']</strong> ';
if (a.href) {
desc += '<a href="' + a.href + '">' + desctext + '</a>';
} else {
desc += desctext;
}
descriptions.push(desc);
}
quicksort(descriptions, 0, descriptions.length - 1);
div = document.createElement('div');
div.id = 'accessbar-div-0';
desc = '<div><ul><li class="first">' + descriptions[0] + '</li>';
for (i = 1; i < descriptions.length; i += 1) {
desc = desc + '<li>' + descriptions[i] + '</li>';
}
desc = desc + '</ul></div>';
div.innerHTML = desc;
document.body.style.paddingBottom = "4em";
window.addEventListener(
"load",
function() {
document.body.appendChild(div);
},
true);
addGlobalStyle(
'#accessbar-div-0 {'+
' position: fixed;' +
' left: 0;' +
' right: 0;' +
' bottom: 0;' +
' top: auto;' +
' border-top: 1px solid silver;' +
' background: black;' +
' color: white;' +
' margin: 1em 0 0 0;' +
' padding: 5px 0 0.4em 0;' +
' width: 100%;' +
' font-family: Verdana, sans-serif;' +
' font-size: small;' +
' line-height: 160%;' +
'}' +
'#accessbar-div-0 a,' +
'#accessbar-div-0 li,' +
'#accessbar-div-0 span,' +
'#accessbar-div-0 strong {' +
' background-color: transparent;' +
' color: white;' +
'}' +
'#accessbar-div-0 div {' +
' margin: 0 1em 0 1em;' +
'}' +
'#accessbar-div-0 div ul {' +
' margin-left: 0;' +
' margin-bottom: 5px;' +
' padding-left: 0;' +
' display: inline;' +
'}' +
'#accessbar-div-0 div ul li {' +
' margin-left: 0;' +
' padding: 3px 15px;' +
' border-left: 1px solid silver;' +
' list-style: none;' +
' display: inline;' +
'}' +
'#accessbar-div-0 div ul li.first {' +
' border-left: none;' +
' padding-left: 0;' +
'}');
})();
//
// ChangeLog
// 2005-07-08 - 0.8 - MAP - added license block
// 2005-04-21 - 0.7 - MAP - linted
// 2005-04-21 - 0.6 - MAP - change addGlobalStyle and quicksort to normal functions
// 2005-04-18 - 0.5 - MAP - change order of steps, tidy code
// 2005-04-16 - 0.4 - MAP - remove count(//*[@accesskey]) call, just check length of //*[@accesskey] XPath query result
// 2005-04-15 - 0.3 - MAP - changed addGlobalStyle function to check for <head> element
// 2005-04-14 - 0.2 - MAP - changed addGlobalStyle function to use local variables
//
