show MetaFilter profile pictures next to names in posts and comments
目前为
// picMF.user.js
//
// Written by: Michael Devore
// Released to the public domain
//
// This is a Greasemonkey script.
// See http://www.greasespot.net/ for more information on Greasemonkey.
//
// ==UserScript==
// @name picMF
// @namespace http://www.devoresoftware.com/gm/picMF
// @description show MetaFilter profile pictures next to names in posts and comments
// @match https://*.metafilter.com/*
// @match http://*.metafilter.com/*
// @grant GM_xmlhttpRequest
// @run-at document-end
// @version 1.0
// ==/UserScript==
//
"use strict";
var theWidth = "64px";
var theHeight = "64px";
var zoomWidth = "256px";
var zoomHeight = "256px";
var serverPrefix = "//s3-us-west-2.amazonaws.com/mefi.profile/";
function onLoaded()
{
var xpath = "//DIV/SPAN[starts-with(text(),'posted by') and (@class='smallcopy' or @class='smallcopy postbyline')]";
var postNodes = document.evaluate(
xpath,
document,
null,
XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,
null
);
var total = postNodes.snapshotLength;
for (var i = 0; i < total; i++)
{
// not much validation here, cuts performance overhead by avoiding extra tests against the nodes
// tighten it down later if it conflicts with other add-ons or Metafilter bling
var userSpan = postNodes.snapshotItem(i);
var currentNode = userSpan.firstChild;
var found = false;
var userLink;
var linkNode;
while (currentNode && !found)
{
if (currentNode.nodeName === "A")
{
var href_value = currentNode.getAttribute('href');
var result = href_value.match(/\/user\/(\d+)/);
if (result && result[1])
{
var userNumber = result[1];
var serverLink = serverPrefix+userNumber+".jpg";
var img = document.createElement("img");
img.setAttribute("src", serverLink);
setTimeout(function(x, y)
{
return function()
{
if (x.height > 0)
{
x.setAttribute("height", theHeight);
x.setAttribute("width", theWidth);
y.insertBefore(document.createTextNode(" "), y.firstChild);
y.insertBefore(x, y.firstChild);
x.addEventListener('mouseover', picHover, false);
x.addEventListener('mouseout', picRestore, false);
}
};
}(img, currentNode), 1000);
break;
}
}
currentNode = currentNode.nextSibling;
}
}
}
function picHover(evt)
{
var picNode = evt['target'];
picNode.setAttribute("height", zoomHeight);
picNode.setAttribute("width", zoomWidth);
}
function picRestore(evt)
{
var picNode = evt['target'];
picNode.setAttribute("height", theHeight);
picNode.setAttribute("width", theWidth);
}
document.addEventListener('DOMContentLoaded',onLoaded,true);