//Copyright 2010 Facebook, Inc.
//
//Licensed under the Apache License, Version 2.0 (the "License"); you may
//not use this file except in compliance with the License. You may obtain
//a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
//Unless required by applicable law or agreed to in writing, software
//distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
//WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
//License for the specific language governing permissions and limitations
//under the License.
// ==UserScript==
// @name Facebook Like
// @namespace http://www.facebook.com
// @description Like any page on the web!
// @include *
// ==/UserScript==
//don't append the bar if it's an iframe
if (window.top != window.self)
{
exit;
}
base_url = getBaseURL();
//don't display the bar on facebook.com
if (base_url == 'http://www.facebook.com/' || base_url == '/')
{
exit;
}
//assigning event handlers need a timeout so they don't die
setTimeout(assignClickHandler, 100);
var base_url = getBaseURL(window.location);
//define the HTML/CSS that needs to be prepended to the current page
var output_markup = '';
output_markup = '
';
output = document.createElement('div');
output.innerHTML = output_markup;
//prepend the markup to the body
body = document.getElementsByTagName('body')[0];
body.appendChild(output);
//buffer the top of the page so the bar doesn't overlap any content on initial load
body.style.marginTop = '29px';
//toggle Recent Activity/Recommendations sidebar on and off
function showExtraInfo() {
obj = document.getElementById("extra-info");
if (obj.style.display == "none")
{
obj.style.display = "";
}
else {
obj.style.display = "none";
}
return false;
}
//track the click event on the plus ([+]) button in order to toggle showExtraInfo
function assignClickHandler() {
var clickDiv = document.getElementById('socialInfo');
clickDiv.addEventListener("click", showExtraInfo, true);
}
//get the base URL of the site the user is currently on
function getBaseURL () {
var url = location.href;
var baseURL = url.substring(0, url.indexOf('/', 14));
if (baseURL.indexOf('http://localhost') != -1) {
var url = location.href;
var pathname = location.pathname;
var index1 = url.indexOf(pathname);
var index2 = url.indexOf("/", index1 + 1);
var baseLocalUrl = url.substr(0, index2);
return baseLocalUrl + "/";
}
else {
return baseURL + "/";
}
}