Hover over YouTube video thumbnails to retrieve their stored zoomed and expanded full quality size of 480x360px
// ==UserScript==
// @name YouTube Thumbnail Enlarger
// @namespace https://greasyfork.org/en/users/10118-drhouse
// @version 1.0
// @description Hover over YouTube video thumbnails to retrieve their stored zoomed and expanded full quality size of 480x360px
// @include https://www.youtube.com/*
// @require http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js
// @author drhouse
// ==/UserScript==
$(document).ready(function () {
var prevWidth;
var prevHeight;
$("div.thumb-wrapper").hover(function(e){ //video.. related
var url = $(this).find("img").attr('src');
var c = $(this).parent().find('span.title').text();
var thumb = url.split("?")[0];
console.log("url: " + url);
$("body").append("<p id='preview'><img src='"+ thumb +"' alt='Image preview' />"+ c +"</p>");
$('#preview').css('position','absolute')
.css('color','white')
.css('padding','8px')
.css('font','100% Arial')
.css('border','1px solid #fff')
.css('background','#191919')
.css('z-index','19999999999');
var $img = $('#preview > img');
$img.on('load', function(){
prevWidth = $(this).width();
prevHeight = $(this).height();
$('#preview').css('width', prevWidth);
$('#preview').css('height', prevHeight+30);
});
$('#preview').css('width', prevWidth);
$('#preview').css('word-wrap','break-word');
var rtx = ($(window).width() - ($( this ).find('img').offset().left + $( this ).find('img').outerWidth()));
var rty = ($(window).height() - ($( this ).find('img').offset().top + $( this ).find('img').outerHeight()));
var viewportWidth = $(window).width();
var viewportHeight = $(window).height();
var viewportWidthCenter = viewportWidth/2;
var viewportHeightCenter = viewportHeight/2;
var xOffset;
var yOffset;
if (rty >= viewportHeightCenter){
xOffset = -500;
yOffset = 30;
$("#preview")
.css("top",(e.pageY - yOffset) + "px")
.css("left",(e.pageX + xOffset) + "px")
.fadeIn("fast");
} else {
xOffset = -500;
yOffset = $('#preview').height() + 10;
$("#preview")
.css("top",(e.pageY - yOffset) + "px")
.css("left",(e.pageX + xOffset) + "px")
.fadeIn("fast");
}
},
function(){
this.title = this.t;
$("#preview").remove();
});
$("div.yt-lockup-thumbnail").hover(function(e){ //user ... videos
var url = $(this).find("img").attr('src');
var c = $(this).parent().find('a').text();
var thumb = url.split("?")[0];
console.log("url: " + url);
$("body").append("<p id='preview'><img src='"+ thumb +"' alt='Image preview' />"+ c +"</p>");
$('#preview').css('position','absolute')
.css('color','white')
.css('padding','8px')
.css('font','100% Arial')
.css('border','1px solid #fff')
.css('background','#191919')
.css('z-index','19999999999');
var $img = $('#preview > img');
$img.on('load', function(){
prevWidth = $(this).width();
prevHeight = $(this).height();
$('#preview').css('width', prevWidth);
$('#preview').css('height', prevHeight+30);
});
$('#preview').css('width', prevWidth);
$('#preview').css('word-wrap','break-word');
var rtx = ($(window).width() - ($( this ).find('img').offset().left + $( this ).find('img').outerWidth()));
var rty = ($(window).height() - ($( this ).find('img').offset().top + $( this ).find('img').outerHeight()));
var viewportWidth = $(window).width();
var viewportHeight = $(window).height();
var viewportWidthCenter = viewportWidth/2;
var viewportHeightCenter = viewportHeight/2;
var xOffset;
var yOffset;
if (rty >= viewportHeightCenter){
xOffset = -500;
yOffset = 30;
$("#preview")
.css("top",(e.pageY - yOffset) + "px")
.css("left",(e.pageX + xOffset) + "px")
.fadeIn("fast");
} else {
xOffset = -500;
yOffset = $('#preview').height() + 10;
$("#preview")
.css("top",(e.pageY - yOffset) + "px")
.css("left",(e.pageX + xOffset) + "px")
.fadeIn("fast");
}
},
function(){
this.title = this.t;
$("#preview").remove();
});
$("div.yt-lockup-thumbnail.contains-addto").hover(function(e){ //subscriptions
var url = $(this).find("a > div > span > img").attr('src');
var c = $(this).parent().find('div.yt-lockup-content > div.yt-lockup-description.yt-ui-ellipsis.yt-ui-ellipsis-2').text();
var thumb = url.split("?")[0];
console.log("url: " + url);
$("body").append("<p id='preview'><img src='"+ thumb +"' alt='Image preview' />"+ c +"</p>");
$('#preview').css('position','absolute')
.css('color','white')
.css('padding','8px')
.css('font','80% Arial')
.css('border','1px solid #fff')
.css('background','#191919')
.css('z-index','19999999999');
var $img = $('#preview > img');
$img.on('load', function(){
prevWidth = $(this).width();
prevHeight = $(this).height();
$('#preview').css('width', prevWidth);
$('#preview').css('height', prevHeight+30);
});
$('#preview').css('width', prevWidth);
$('#preview').css('word-wrap','break-word');
var rtx = ($(window).width() - ($( this ).find('img').offset().left + $( this ).find('img').outerWidth()));
var rty = ($(window).height() - ($( this ).find('img').offset().top + $( this ).find('img').outerHeight()));
var viewportWidth = $(window).width();
var viewportHeight = $(window).height();
var viewportWidthCenter = viewportWidth/2;
var viewportHeightCenter = viewportHeight/2;
var xOffset;
var yOffset;
if (rty >= viewportHeightCenter){
xOffset = -500;
yOffset = 30;
$("#preview")
.css("top",(e.pageY - yOffset) + "px")
.css("left",(e.pageX + xOffset) + "px")
.fadeIn("fast");
} else {
xOffset = -500;
yOffset = $('#preview').height() + 10;
$("#preview")
.css("top",(e.pageY - yOffset) + "px")
.css("left",(e.pageX + xOffset) + "px")
.fadeIn("fast");
}
},
function(){
this.title = this.t;
$("#preview").remove();
});
$("li.yt-uix-scroller-scroll-unit").hover(function(e){ //playlists
var url = $(this).attr('data-thumbnail-url');
var c = $(this).attr('data-video-title');
var thumb = url.split("?")[0];
$("body").append("<p id='preview'><img src='"+ thumb +"' alt='Image preview' />"+ c +"</p>");
$('#preview').css('position','absolute')
.css('color','white')
.css('padding','8px')
.css('font','90% Arial')
.css('border','1px solid #fff')
.css('background','#191919')
.css('z-index','999');
var $img = $('#preview > img');
$img.on('load', function(){
prevWidth = $(this).width();
prevHeight = $(this).height();
$('#preview').css('width', prevWidth);
$('#preview').css('height', prevHeight+30);
});
$('#preview').css('width', prevWidth);
$('#preview').css('word-wrap','break-word');
var rtx = ($(window).width() - ($( this ).find('img').offset().left + $( this ).find('img').outerWidth()));
var rty = ($(window).height() - ($( this ).find('img').offset().top + $( this ).find('img').outerHeight()));
var viewportWidth = $(window).width();
var viewportHeight = $(window).height();
var viewportWidthCenter = viewportWidth/2;
var viewportHeightCenter = viewportHeight/2;
var xOffset;
var yOffset;
if (rty >= viewportHeightCenter){
xOffset = -500;
yOffset = 30;
$("#preview")
.css("top",(e.pageY - yOffset) + "px")
.css("left",(e.pageX + xOffset) + "px")
.fadeIn("fast");
} else {
xOffset = -500;
yOffset = $('#preview').height() + 10;
$("#preview")
.css("top",(e.pageY - yOffset) + "px")
.css("left",(e.pageX + xOffset) + "px")
.fadeIn("fast");
}
},
function(){
this.title = this.t;
$("#preview").remove();
});
});