/* vim: ts=4 noet ai :
$Id: $
Annotate Links - (c) 2005 J.Q. la Poutre
A greasemonkey user script which lets you annotate external links on a
web page with a number, referring to a list of corresponding URLs as
endnotes below the page.
This comes in handy whenever you print the page and want to check out a
link afterwards.
Each link is refrenced like this [22], while a list of links is appended
to the bottom of the page, like this:
22. http://link.to/interesting/external/page.html
These links and refrences are NOT visible in the normal browser view,
but they are printed whenever you print the page.
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 should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
CHANGELOG
Version 0.1
- initial release, based on my similar bookmarklet
Version 0.2
- always transform links; invisible on screen
- printed version shows references and endnotes
- minor style fixes
BUGS
Not a bug per se, but the list of referenced links will not
be correctly positioned at the bottom of the page, if there are
absolutely positioned elements on the page.
TODO
---
*/
// ==UserScript==
// @name Annotate Links
// @namespace http://joe.lapoutre.com/BoT/Javascript/AnnotateLinks
// @description Generates a list of external links as footnote.
// @include *
// @exclude
// @version 0.2
// ==/UserScript==
(function() {
// begin user script
function setText(node, txt) {
var sp = document.createElement('span');
sp.className = "annlink-inline";
sp.appendChild(document.createTextNode(txt));
node.appendChild(sp);
/*
var n = node.firstChild;
if (!n) {
return;
} if (n.nodeType == 3) {
var sp = document.createElement('span');
sp.className = "annlink-inline";
sp.appendChild(document.createTextNode(txt));
n.appendChild(sp);
} else {
setText(n, txt);
}
*/
}
function li(txt) {
var li1 = document.createElement("li");
tN = document.createTextNode(txt);
li1.appendChild(tN);
return li1;
}
function ol(aL) {
var ol1 = document.createElement("ol");
ol1.style.textAlign = "left";
ol1.className = "annlink-block";
for (var i in aL) {
ol1.appendChild(li(aL[i]));
}
return ol1;
}
function annotate() {
if (window.annotateLinksDone) return;
appendStyles();
var aL = new Array();
var dL = document.getElementsByTagName("a");
var j = 1;
for (var i = 0; i < dL.length; i++) {
var href = dL[i].getAttribute("href");
if (href && href.match(/^(http|mailto|ftp)/) && dL[i].firstChild) {
setText(dL[i], " [" + j++ + "]");
aL[aL.length] = dL[i].getAttribute("href");
}
}
try {
var bd = document.getElementsByTagName("body")[0];
var hr = document.createElement('hr');
hr.className = "annlink-block";
bd.appendChild(hr);
bd.appendChild(ol(aL));
} catch(e) {
if (typeof(GM_log) == 'function') GM_log(e.toString(), 2);
}
window.annotateLinksDone = true;
};
// -------------------- Stylesheet: display for print media only --------------------
function appendStyles() {
var styleElement = document.createElement('style');
if (styleElement) {
styleElement.type = 'text/css';
// styleElement.media = 'print';
styleElement.id = 'annotatelinkstyles';
document.getElementsByTagName('head')[0].appendChild(styleElement);
var sty = document.styleSheets[document.styleSheets.length - 1];
sty.insertRule(".annlink-inline { display: none; }", 0);
sty.insertRule(".annlink-block { display: none; }", 1);
sty.insertRule("@media print { .annlink-inline { display: inline; }}", 2);
sty.insertRule("@media print { .annlink-block { display: block; }}", 3);
}
}
// this fixes a double injection problem with GM 3.x
window.addEventListener("load", function() {
annotate();
}, false);
/*
// Menu Command:
if (typeof(GM_registerMenuCommand) == 'function') {
GM_registerMenuCommand("Annotate Links", annotate, {ctrl:true,key:"l"}, "l");
}
*/
// end user script
})();
