Tips and Tricks About Computers, Web Development, Linux, the Internet and the Like
DOM
jQuery and jQuery UI in your Grease Monkey scripts.
Jul 16th
Not all websites are made equal. Unfortunately, some of those websites are ones we’re required to use. Be it our job, our interests or the undiscovered, web-browsing can be the orgeon trail of the internet. Cultivating the atmosphere to work for us and bringing the right tools along for the journey are essential for survival, if you’re a pioneer.
I’m tired of websites that don’t provide, can’t provide or will never provide. I’ve called in my boys, Stylish and Grease Monkey on the front lines. However, beyond the crazy happenstance that another user might share a solution to your issue on userstyles.org or userscripts.org you could be left in the cold, without the right tools. I won’t go into detail on Stylish in this post but you might not even need it after you see the script.
Since I’m already connected with Google every which way in my life, why not pretend like the Internet is a big party and websites are your friends. Introduce jQuery from Google’s CDN to other friends (websites) that don’t already know jQuery and jQuery UI and make it personal.
That was the driving force behind this Grease Monkey Script, which was derived from mashing together strd6′s script and Joan Piedra’s script with an update to the latest versions of jQuery and jQuery UI.
// ==UserScript==
// @name jQuery and jQuery UI
// @author Tyler "-z-" Mulligan
// @version 0.5
// @namespace http://www.doknowevil.net
// @description jQuery 1.6.2 and jQuery UI 1.8.4 loaded from google's CDN with redmond theme.
// @include http://www.website.com/*
//
// @resource jQuery https://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js
// @resource jQueryUI https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.14/jquery-ui.min.js
//
// @resource jQueryUICSS http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/redmond/jquery-ui.css
//
// @resource ui-bg_inset-hard_100_fcfdfd_1x100.png http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/redmond/images/ui-bg_inset-hard_100_fcfdfd_1x100.png
// @resource ui-bg_gloss-wave_55_5c9ccc_500x100.png http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/redmond/images/ui-bg_gloss-wave_55_5c9ccc_500x100.png
// @resource ui-bg_glass_85_dfeffc_1x400.png http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/redmond/images/ui-bg_glass_85_dfeffc_1x400.png
// @resource ui-bg_glass_75_d0e5f5_1x400.png http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/redmond/images/ui-bg_glass_75_d0e5f5_1x400.png
// @resource ui-bg_inset-hard_100_f5f8f9_1x100.png http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/redmond/images/ui-bg_inset-hard_100_f5f8f9_1x100.png
// @resource ui-bg_flat_55_fbec88_40x100.png http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/redmond/images/ui-bg_flat_55_fbec88_40x100.png
// @resource ui-bg_glass_95_fef1ec_1x400.png http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/redmond/images/ui-bg_glass_95_fef1ec_1x400.png
// @resource ui-icons_469bdd_256x240.png http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/redmond/images/ui-icons_469bdd_256x240.png
// @resource ui-icons_469bdd_256x240.png http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/redmond/images/ui-icons_469bdd_256x240.png
// @resource ui-icons_d8e7f3_256x240.png http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/redmond/images/ui-icons_d8e7f3_256x240.png
// @resource ui-icons_6da8d5_256x240.png http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/redmond/images/ui-icons_6da8d5_256x240.png
// @resource ui-icons_217bc0_256x240.png http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/redmond/images/ui-icons_217bc0_256x240.png
// @resource ui-icons_f9bd01_256x240.png http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/redmond/images/ui-icons_f9bd01_256x240.png
// @resource ui-icons_2e83ff_256x240.png http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/redmond/images/ui-icons_2e83ff_256x240.png
// @resource ui-icons_cd0a0a_256x240.png http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/redmond/images/ui-icons_cd0a0a_256x240.png
// @resource ui-bg_flat_0_aaaaaa_40x100.png http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/redmond/images/ui-bg_flat_0_aaaaaa_40x100.png
// @resource ui-bg_flat_0_aaaaaa_40x100.png http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/redmond/images/ui-bg_flat_0_aaaaaa_40x100.png
// ==/UserScript==
var $;
// Inject jQuery into page... gross hack... for now...
(function() {
if (typeof unsafeWindow.jQuery == 'undefined') {
var head = document.getElementsByTagName('head')[0];
var script = document.createElement('script');
script.type = 'text/javascript';
var jQuery = GM_getResourceText('jQuery');
var jQueryUI = GM_getResourceText('jQueryUI');
script.innerHTML = jQuery + jQueryUI;
head.appendChild(script);
}
GM_wait();
})();
// Check if jQuery's loaded
function GM_wait() {
if (typeof unsafeWindow.jQuery == 'undefined') {
window.setTimeout(GM_wait, 100);
} else {
$ = unsafeWindow.jQuery.noConflict(true);
addUIStyles();
letsJQuery();
}
}
function addUIStyles() {
var head = document.getElementsByTagName('head')[0];
var resources = {
'ui-bg_inset-hard_100_fcfdfd_1x100.png': GM_getResourceURL('ui-bg_inset-hard_100_fcfdfd_1x100.png'),
'ui-bg_gloss-wave_55_5c9ccc_500x100.png': GM_getResourceURL('ui-bg_gloss-wave_55_5c9ccc_500x100.png'),
'ui-bg_glass_85_dfeffc_1x400.png': GM_getResourceURL('ui-bg_glass_85_dfeffc_1x400.png'),
'ui-bg_glass_75_d0e5f5_1x400.png': GM_getResourceURL('ui-bg_glass_75_d0e5f5_1x400.png'),
'ui-bg_inset-hard_100_f5f8f9_1x100.png': GM_getResourceURL('ui-bg_inset-hard_100_f5f8f9_1x100.png'),
'ui-bg_flat_55_fbec88_40x100.png': GM_getResourceURL('ui-bg_flat_55_fbec88_40x100.png'),
'ui-bg_glass_95_fef1ec_1x400.png': GM_getResourceURL('ui-bg_glass_95_fef1ec_1x400.png'),
'ui-icons_469bdd_256x240.png': GM_getResourceURL('ui-icons_469bdd_256x240.png'),
'ui-icons_469bdd_256x240.png': GM_getResourceURL('ui-icons_469bdd_256x240.png'),
'ui-icons_d8e7f3_256x240.png': GM_getResourceURL('ui-icons_d8e7f3_256x240.png'),
'ui-icons_6da8d5_256x240.png': GM_getResourceURL('ui-icons_6da8d5_256x240.png'),
'ui-icons_217bc0_256x240.png': GM_getResourceURL('ui-icons_217bc0_256x240.png'),
'ui-icons_f9bd01_256x240.png': GM_getResourceURL('ui-icons_f9bd01_256x240.png'),
'ui-icons_2e83ff_256x240.png': GM_getResourceURL('ui-icons_2e83ff_256x240.png'),
'ui-icons_cd0a0a_256x240.png': GM_getResourceURL('ui-icons_cd0a0a_256x240.png'),
'ui-bg_flat_0_aaaaaa_40x100.png': GM_getResourceURL('ui-bg_flat_0_aaaaaa_40x100.png'),
'ui-bg_flat_0_aaaaaa_40x100.png': GM_getResourceURL('ui-bg_flat_0_aaaaaa_40x100.png')
};
var style = document.createElement('style');
style.type = 'text/css';
var css = GM_getResourceText ('jQueryUICSS');
$.each(resources, function(resourceName, resourceUrl) {
console.log(resourceName + ': ' + resourceUrl);
css = css.replace( 'images/' + resourceName, resourceUrl);
});
style.innerHTML = css;
head.appendChild(style);
}
// All your GM code must be inside this function
function letsJQuery() {
//alert($); // check if the dollar (jquery) function works
//alert($().jquery); // check jQuery version
$("
<div id='example' class='flora' title='This is my title'>I'm in a dialog!</div>
").dialog({
buttons: {
"Ok": function() {
alert("Ok");
},
"Cancel": function() {
$(this).dialog("close");
}
}
});
}
I also wanted to use this script with Chromium browser, the open-source version of Google Chrome. I found the TamperMonkey Extension for Chrome. Stylish is also available for Chrome.
Optimizing CSS selectors for load time; #home is faster than #menu li a#home
Jun 27th
I was trying to figure out how to cut rendering time with smarter CSS. In my quest, I came across a plugin by google for Firebug called Page Speed which not only answered my question in the ‘Use efficient CSS selectors’ section (* #header #menu a:hover — Tag key with 2 descendant selectors and hover pseudo selector) but provided more details on the subject on the Page Speed Documentation.
“Descendant selectors are inefficient because, for each element that matches the key, the browser must also traverse up the DOM tree, evaluating every ancestor element until it finds a match or reaches the root element. The less specific the key, the greater the number of nodes that need to be evaluated.”
So, #home is faster than #menu li a#home; at least in Mozilla’s case. More on this here
