By Einar Egilsson
Has 1 other script.
// Joel on Software forum preview
// version 0.2
// 2007-04-12
//
// ==UserScript==
//
// @name Joel on Software forum preview
// @namespace http://tech.einaregilsson.com/download/jospreview.user.js
// @description Shows a preview of a post that the mouse is hovering over.
// @author Einar Egilsson (greasemonkey@einaregilsson.com)
// @include http://discuss.joelonsoftware.com/*
// @include http://discuss.techinterview.org/*
// @include http://support.fogcreek.com/*
// @include http://crazyontap.com/*
// @include http://www.crazyontap.com/*
//
// @exclude http://crazyontap.com*=*
// @exclude http://www.crazyontap.com*=*
// @exclude http://discuss.joelonsoftware.com/*.*.*
// @exclude http://discuss.techinterview.org/*.*.*
// @exclude http://support.fogcreek.com/*.*.*
//
// ==/UserScript==
/* BEGIN LICENSE BLOCK
Copyright (C) 2006 Einar Egilsson
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 log(str) {
//Uncomment for debugging
//GM_log(str);
}
function setPos(x, y) {
if (window.previewNode) {
var style = window.previewNode.getAttribute("style");
style = style.replace(/top:\s*\d*/, "top: " + (y + 20)).replace(/left:\s*\d*/, "left: " + x);
window.previewNode.setAttribute("style", style);
}
}
function getPost(event) {
var linkUrl = event.target.toString();
var link = event.target;
var post = linkUrl.split("?")[1];
var text;
window.currentPreviewUrl = linkUrl;
for (var x = 0, y = 0; link.offsetParent; link = link.offsetParent) {
x += link.offsetLeft;
y += link.offsetTop;
}
if (text = window.previewCache[linkUrl]) {
log("Cache hit for " + linkUrl);
setPos(x, y);
window.previewNode.innerHTML = text;
window.previewNode.style.display = "";
window.currentPreviewUrl = linkUrl;
} else {
log("Cache miss for " + post);
//Only get pages if the mouse is over them for more than 0.5 seconds.
setTimeout(function() {
if (window.currentPreviewUrl != linkUrl) {
log("Mouseout has fired for " + post + ", don't get page");
return;
}
GM_xmlhttpRequest({
method : "GET",
url : linkUrl,
headers: { "User-agent": "Mozilla/4.0 (compatible) Greasemonkey" },
onload: function(responseDetails) {
if (responseDetails.status != 200) {
alert("Failed to load preview, message is: " + responseDetails.status + " " + responseDetails.statusText);
return;
}
var src = responseDetails.responseText;
var start, end;
if (/crazyontap/.test(linkUrl)) {
start = src.indexOf('<div class="post">') + 18;
} else {
start = src.indexOf('<div class="discussBody">') + 25;
}
end = src.indexOf('</div>', start);
var text = src.substr(start, end - start);
window.previewCache[linkUrl] = text;
//Only show if the mouseout event hasn't fired
if (window.currentPreviewUrl == linkUrl) {
setPos(x, y);
window.previewNode.innerHTML = text;
window.previewNode.style.display = "";
} else {
log("Skipping set text for " + post + ", mouseout has fired");
}
}
}); //end GM_xmlhttpRequest
}, 500); //end setTimeout
}
}
function clearPost(event) {
window.previewNode.style.display = "none";
window.currentPreviewUrl = "";
}
var link, links;
links = document.getElementsByTagName("a");
for (var i in links) {
link = links[i];
if (link.href &&
(link.href.match(/discuss\.joelonsoftware\.com\/default\.asp\?\w+\.\d+\.\d+\.\d+$/)
|| link.href.match(/support\.fogcreek\.com\/default\.asp\?\w+\.\d+\.\d+\.\d+$/)
|| link.href.match(/discuss\.techinterview\.org\/default\.asp\?\w+\.\d+\.\d+\.\d+$/)
|| /topic\.php/.test(link.href))) {
link.addEventListener("mouseover", getPost, true);
link.addEventListener("mouseout", clearPost, true);
link.title = "";
}
}
window.previewCache = {};
window.currentPreviewUrl = "";
window.previewNode = document.createElement("div");
window.previewNode.setAttribute("style",
"position:absolute; \
left: 20px; \
top: 150px; \
background-color:#ddd; \
border:solid 1px black; \
padding:3px; \
color:black; \
width:500px; \
font-family:Arial, sans-serif; \
font-size:12px; \
display:none;");
document.getElementsByTagName("body")[0].appendChild(window.previewNode);
//alert('loaded');
})();
//Version history
// Version 0.2 - 2007-04-12
// Improved version. Now supports discuss.joelonsoftware.com, support.fogcreek.com,
// discuss.techinterview.com, and crazyontap.com which came from the old ?off discussion
// group that used to be at joels place.
// Version 0.1 - 2006-12-11
// Initial version. Only supports discuss.joelonsoftware.com
