// Gmail: Random Signature
// version 0.4 BETA
// 2006-04-26
// Copyright (c) 2005-2006, Robson Braga Araujo
// Released under the GPL license
// http://www.gnu.org/copyleft/gpl.html
//
// --------------------------------------------------------------------
//
// This is a Greasemonkey user script.
//
// 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 "Gmail: Random Signature", and click Uninstall.
//
// --------------------------------------------------------------------
//
// ==UserScript==
// @name Gmail: Random Signature
// @namespace http://valfenda.cjb.net/~robson/userscripts
// @description Insert a random tagline at the end of your email sent through gmail.
// @include http://gmail.google.com/*
// @include https://gmail.google.com/*
// @include http://mail.google.com/*
// @include https://mail.google.com/*
// @author Robson Braga Araujo (robsonbraga at gmail dot com)
//
/////////////////////////////////////////////////////////////
//
// 26 April 2006
// - Fix finding username in new gmail layout
// 22 March 2006
// - Only add newline if we have both parts of the signature.
// 09 March 2006
// - Workaround for bug in Firefox 1.5.0.1. A break inside the for caused
// Firefox to crash.
// - New Gmail layout may put the username in a different tag.
// - Make it faster when loading Gmail.
// 23 January 2006
// - Updated to work with new version of Gmail.
// 09 December 2005
// - Updated to work with new Greasemonkey for Firefox 1.5.
// 15 September 2005
// - Make the configuration per username, so that everybody can have their own
// signature and taglines.
// - TODO: Store configuration on server.
// 13 September 2005
// - No ugly editing anymore. The script adds a box to your preferences so you
// can edit your taglines and signature.
// 12 September 2005
// - Removed lots of unnecessary stuff.
// - Corrected a bug where the sig wouldn't change if you clicked in
// "Compose Mail".
// 11 September 2005
// - First Release: must edit the tagline array in the script.
//
// ==/UserScript==
(function(){
var username;
init();
var UpdateGmailVariable = null;
function init()
{
// Get the current username to retrieve the correct preferences
username = getUsername();
if (username && username == "") return;
// For some reason, the Gmail data function (top.js.P) now invalidates the page. I couldn't understand
// why, so I'll just find the function that updates the variables and use that.
var js = unsafeWindow.top.document.getElementsByName('js')[0].contentWindow;
if (js.wrappedJSObject) js = js.wrappedJSObject;
for (var propName in js) {
var propValue = js[propName];
if (typeof(propValue) != "function") {
continue;
}
var functionBody = propValue.toString();
// This if is just for performance reasons
if (functionBody.indexOf('a[b][0]') != -1) {
// This is to make sure we have the right function
if (functionBody.match(/\w\[\w\[\w\]\[\w\]\]\s*=\s*\w\[\w\]\[\w\]/)) {
UpdateGmailVariable = propValue;
// TODO This break makes Firefox 1.5.0.1 crash
//break;
}
}
}
// Edit the preference to allow the user to change her taglines
var sig_input = document.getElementById('sx_sg_1val');
if (sig_input)
{
// Gmail may think it has a signature because we are using just a tagline
var enabled = GM_getValue(username + ".enabled");
if (typeof enabled != 'undefined' && !enabled)
{
document.getElementById("sx_sg_0").checked = true;
}
var signature = GM_getValue(username + ".signature", sig_input.value);
var taglines = GM_getValue(username + ".taglines", "Dummy tagline 1\n%\nDummy tagline 2\n%\nTwo line\ndummy tagline\n");
var tag_enabled = GM_getValue(username + ".tag_enabled", false);
sig_input.value = signature;
var html;
// Add the radio buttons to select whether the user wants the tagline
// We use the _PR_OnPrefStringRadio and _PR_OnPrefStringKeyUp defined by the
// GMail API to control if Save Changes button is enabled
html = '<td valign="top"><input type="radio" value="0" id="signature_tagline_0" name="signature_tagline" onClick="top.js._PR_OnPrefStringRadio(window, this);" ' + (tag_enabled ? '' : 'checked') + '></td><td class="s" style="padding-top: 2px"><b>No taglines</b></td>';
addHTML(document.getElementById("sx_sg_0").parentNode.parentNode, html);
html = '<td valign="top"><input type="radio" value="1" id="signature_tagline_1" name="signature_tagline" onClick="top.js._PR_OnPrefStringRadio(window, this);" ' + (tag_enabled ? 'checked' : '') + '></td>';
html += '<td class="s"><textarea id="signature_tagline_1val" name="signature_tagline_input" cols="40" rows="3" wrap="off" onkeyup="top.js._PR_OnPrefStringKeyUp(this, event);">' + taglines + '</textarea></td>';
addHTML(document.getElementById("sx_sg_1").parentNode.parentNode, html);
document.getElementById("sx_sg_0").parentNode.parentNode.parentNode.appendChild(document.getElementById("sx_sg_1").parentNode.parentNode);
// Redefine the onclick for the Save Changes button so that we can store the
// values selected by the user
var button = document.getElementById('ps');
button_onclick = function(){
GM_setValue(username + ".enabled", document.getElementById("sx_sg_1").checked);
GM_setValue(username + ".signature", sig_input.value);
GM_setValue(username + ".tag_enabled", document.getElementById("signature_tagline_1").checked);
GM_setValue(username + ".taglines", document.getElementById("signature_tagline_1val").value);
// Mask the value of the taglines text because it can be too big
// and gmail will complain about the size of the url parameters
var radio = document.getElementById("signature_tagline_0");
var old_check = radio.checked;
radio.checked = true;
top.js._PR_OnPrefStringRadio(window, radio);
if (!old_check) document.getElementById("signature_tagline_1").checked = true;
var textarea = document.getElementById("signature_tagline_1val");
old_text = textarea.value;
textarea.value = "";
top.js._PR_OnPrefStringKeyUp(textarea, null);
textarea.value = old_text;
return false;
};
button.addEventListener('click', button_onclick, true);
}
changeSignature();
}
function getUsername()
{
user_tag = document.getElementById('prf_g').parentNode.childNodes[0];
return user_tag.data ? user_tag.data : user_tag.childNodes[0].data;
}
// function copied from http://www.faqts.com/knowledge_base/view.phtml/aid/11698
function addHTML (ele, html) {
if (document.all)
ele.insertAdjacentHTML('beforeEnd', html);
else if (document.createRange) {
var range = document.createRange();
range.setStartAfter(ele.lastChild);
var docFrag = range.createContextualFragment(html);
ele.appendChild(docFrag);
}
else if (document.layers) {
var l = new Layer(window.innerWidth);
l.document.open();
l.document.write(html);
l.document.close();
l.top = document.height;
document.height += l.document.height;
l.visibility = 'show';
}
}
function changeSignature()
{
var enabled = GM_getValue(username + ".enabled", false);
var static_part = enabled ? GM_getValue(username + ".signature", "") : "";
var tag_enabled = GM_getValue(username + ".tag_enabled", false);
var dynamic_part = "";
if (tag_enabled)
{
var taglines = GM_getValue(username + ".taglines", "");
var tagline_array = taglines.split('\n%\n');
dynamic_part = tagline_array[Math.floor(Math.random()*tagline_array.length)];
}
if (UpdateGmailVariable && (enabled || tag_enabled))
UpdateGmailVariable(['p', ['sx_sg', static_part + (enabled ? "\n" : "") + dynamic_part]]);
}
})();
