By Thomas Chapin
—
Last update
Jun 28, 2008
—
Installed
522 times.
// Copyright 2008 Tom Chapin <tchapin@gmail.com> - Web site: http://www.tchapin.com
// All rights Reserved.
//
//
// RELEASE NOTES
//
// v1.1 (06/27/2008)
// * Added an invisible iframe that would check for unread messages every 30 seconds
// * Made Unread Mail link display the number of unread messages
// * Made Unread Mail link activate/deactivate on selection
// * Rewrote entire script so it doesn't even bother with the gmail greasemonkey API
//
// v1.0 (06/26/2008)
// * Initial release of script.
//
//
// DESCRIPTION
// ============
// Adds an "Unread Mail" link to the left sidebar of your gmail interface
//
//
// KNOWN ISSUES
// ============
// * Only works with new Gmail interface.
//
//
// ==UserScript==
// @name Gmail Unread Mail Link
// @namespace tchapin.com
// @description Adds an "Unread Mail" link to your gmail sidebar
// @include http://mail.google.com/mail/*
// @include https://mail.google.com/mail/*
// @include http://mail.google.com/a/*
// @include https://mail.google.com/a/*
// ==/UserScript==
// How long should the script wait before executing after page load (in milliseconds)?
unsafeWindow._GMNKY_CheckUnreadEmailStartDelay = 2000;
// How often should this script check for new unread messages (in milliseconds)?
unsafeWindow._GMNKY_CheckUnreadEmailInterval = 30000;
// How often should the script check for URL changes (in milliseconds)?
unsafeWindow._GMNKY_CheckURLChangesInterval = 500;
// Placeholder variable for unread email count
unsafeWindow._GMNKY_CheckUnreadEmailCount = 0;
// Figure out the gmail base URL that we're currently on
var topLevelURL = unsafeWindow.parent.location.href;
var googleBaseURL = unsafeWindow.parent.location.href;
if(googleBaseURL.indexOf("#")>-1){
googleBaseURL = googleBaseURL.substring(0,googleBaseURL.indexOf("#"));
}
// Set up an unread mail URLs
var unReadMailViewURL = googleBaseURL+'#search/in%3Aunread';
var unReadMailHTMLViewURL = googleBaseURL+'h/?s=q&q=in%3Aunread';
// Function used to communicate between parent gmail screen and child gmail html-based iframe
unsafeWindow._GMNKY_UpdateUnreadEmailCount = function(UnreadCount){
// Update placeholder count variable
unsafeWindow._GMNKY_CheckUnreadEmailCount = UnreadCount;
// Add/Update unread email link in side nav
unsafeWindow._GMNKY_AddUpdateUnreadEmailLink();
// Check for new unread mail after a specified delay
setTimeout(function(){
unsafeWindow._GMNKY_AddUpdateUnreadMessagesiFrame();
}, unsafeWindow._GMNKY_CheckUnreadEmailInterval);
}
// Function used to add/update the unread email link in the side nav
unsafeWindow._GMNKY_AddUpdateUnreadEmailLink = function(ActivateNavLink){
// Check to make sure that the nav actually exists and if this instance of the greasemonkey script is executing on the main parent screen
var InboxNavDiv = document.getElementById("1fbc");
if(InboxNavDiv){
// Inactive selection classes
var TopDivClass = "XoqCub ACpQre";
var LinkClass = "yyT6sf";
// Check our current URL to find out which page we're on the search in unread screen
if(unsafeWindow.parent.location.href.indexOf("#search/in%3Aunread")>-1 || ActivateNavLink){
// Active selection class
TopDivClass = "XoqCub";
}
// Default Link Title
var LinkTitle = "Unread Mail";
// Check the unread count, make it bold, and set the count
if(unsafeWindow._GMNKY_CheckUnreadEmailCount>0){
LinkClass = "yyT6sf PQmvpb";
LinkTitle = "Unread Mail ("+unsafeWindow._GMNKY_CheckUnreadEmailCount+")";
}
// HTML that is used to display unread email link
var UnreadEmailLink = '';
UnreadEmailLink += '<div class="XoqCub">';
UnreadEmailLink += ' <div class="'+TopDivClass+'">';
UnreadEmailLink += ' <div style="height: 4px;">';
UnreadEmailLink += ' <div class="z1IiMc P0tbHb" style="width: 4px;"></div>';
UnreadEmailLink += ' <div class="z1IiMc wRoeNc" style="width: 4px;"></div>';
UnreadEmailLink += ' <div class="R7iiN kwmAmd"></div>';
UnreadEmailLink += ' </div>';
UnreadEmailLink += ' <div class="R7iiN c1norb">';
UnreadEmailLink += ' <div class="R7iiN vHYYR" style="margin-left: 4px;">';
UnreadEmailLink += ' <div class="wWwc8d" style="margin: -2px 4px -2px 0px; padding: 0px;">';
UnreadEmailLink += ' <div class="diLZtc">';
UnreadEmailLink += ' <div class="XoqCub">';
UnreadEmailLink += ' <div class="NIPhib"><span id="UnreadMailTitleSpan" class="" idlink="">';
UnreadEmailLink += ' <div style="overflow: hidden; white-space: nowrap;">';
UnreadEmailLink += ' <div id="UnreadMailLinkDiv" class="'+LinkClass+'" idlink=""><a href="'+unReadMailViewURL+'" title="'+LinkTitle+'" target="_top" onclick="javascript:_GMNKY_AddUpdateUnreadEmailLink(true);">'+LinkTitle+'</a></div>';
UnreadEmailLink += ' </div>';
UnreadEmailLink += ' </span></div>';
UnreadEmailLink += ' </div>';
UnreadEmailLink += ' </div>';
UnreadEmailLink += ' </div>';
UnreadEmailLink += ' </div>';
UnreadEmailLink += ' </div>';
UnreadEmailLink += ' <div class="LV4T4d"></div>';
UnreadEmailLink += ' <div class="Pj5gjf" style="height: 4px;">';
UnreadEmailLink += ' <div class="z1IiMc F2yfRe" style="width: 4px;"></div>';
UnreadEmailLink += ' <div class="z1IiMc Hemrjb" style="width: 4px;"></div>';
UnreadEmailLink += ' <div class="R7iiN m8lwn"></div>';
UnreadEmailLink += ' </div>';
UnreadEmailLink += ' </div>';
UnreadEmailLink += '</div>';
// Find the inbox div
var InboxNavDiv = unsafeWindow.document.getElementById("1fbc");
// Find the left nav div
var LeftNavDiv = InboxNavDiv.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode;
// Look for the unread email nav link and remove it if it already exists
var UnreadEmailNavDiv = unsafeWindow.document.getElementById("UnreadEmailNavDiv");
if(UnreadEmailNavDiv){
UnreadEmailNavDiv.parentNode.removeChild(UnreadEmailNavDiv);
}
// Create an unread email nav link and add it in the nav
var UnreadEmailNavDiv = document.createElement('div');
UnreadEmailNavDiv.id = "UnreadEmailNavDiv";
UnreadEmailNavDiv.innerHTML = UnreadEmailLink;
LeftNavDiv.appendChild(UnreadEmailNavDiv);
}
}
// Function used to add/update the hidden iframe, which loads the unread messages screen
unsafeWindow._GMNKY_AddUpdateUnreadMessagesiFrame = function(){
// Remove the iframe if it already exists (so we can reload it and get fresh data)
var existingifrm = unsafeWindow.document.getElementById("UnreadMailCheckeriFrame");
if(existingifrm){
existingifrm.parentNode.removeChild(existingifrm);
}
// Create an invisible iframe to check for unread mail
var ifrm = unsafeWindow.document.createElement("IFRAME");
ifrm.setAttribute("src", unReadMailHTMLViewURL);
ifrm.setAttribute("id", "UnreadMailCheckeriFrame");
ifrm.style.width = 1+"px";
ifrm.style.height = 1+"px";
ifrm.style.visibility = "hidden";
unsafeWindow.document.body.appendChild(ifrm);
}
// Execute this block after everything loads and a specified delay has passed
window.addEventListener('load', function() {
setTimeout(function(){
// Check to see if this instance of the greasemonkey script is executing on the main parent screen
var InboxNavDiv = document.getElementById("1fbc");
if(InboxNavDiv){
// Add and/or reload the hidden iframe
unsafeWindow._GMNKY_AddUpdateUnreadMessagesiFrame();
// Set up a script that will monitor the page URL and update the navigation on change
var intervalId = null;
function _MonitorTopURL(){
// clear any interval callbacks to this function
window.clearInterval(intervalId);
// Compare URL with previous one
if(topLevelURL !== unsafeWindow.parent.location.href){
topLevelURL = unsafeWindow.parent.location.href;
// Call nav updater
unsafeWindow._GMNKY_AddUpdateUnreadEmailLink();
}
// call this function again on a regular interval
intervalId = window.setInterval(_MonitorTopURL, unsafeWindow._GMNKY_CheckURLChangesInterval);
}
_MonitorTopURL();
}else{
// Check to see if we're executing this instance of the greasemonkey script inside the iframe
if(location.href.indexOf("/h/") > -1 && window.parent.location.href.indexOf("ui=2") > -1){
// Look for the number of unread messages in the HTML
var UnreadMessagesRegEx = unsafeWindow.document.body.innerHTML.match(/<td.*>[\r\n]*<b>[\d]*<\/b> - <b>[\d]*<\/b>.*<b>([\d]*)<\/b>/m);
// Return it to the parent window
if(UnreadMessagesRegEx){
unsafeWindow.parent._GMNKY_UpdateUnreadEmailCount(UnreadMessagesRegEx[1]);
}else{
unsafeWindow.parent._GMNKY_UpdateUnreadEmailCount(0);
}
}
}
}, unsafeWindow._GMNKY_CheckUnreadEmailStartDelay);
}, true);
