booru.io full height images

Use your full viewport to view images on booru.io. The navbar only displays on hover, while the bottom elements are pushed down the page a bit.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name        booru.io full height images
// @namespace   abdrool
// @match       https://booru.io/*
// @grant       GM_addStyle
// @version     1.1
// @author      abdrool
// @description Use your full viewport to view images on booru.io. The navbar only displays on hover, while the bottom elements are pushed down the page a bit.
// @require     http://code.jquery.com/jquery-latest.js
// @require     https://cdn.jsdelivr.net/npm/[email protected]/jquery.initialize.min.js
// ==/UserScript==


let customCss = `
#navbar {
  transform: translateY(-100%);
  transition: transform .5s cubic-bezier(.4,0,.2,1) .5s;
}

#navbar-wrapper:hover #navbar {
  transform: translateY(0%);
  transition-delay: 0s;
}

#navbar-wrapper {
  position: absolute;
  top: 0%;
  width: 100%;
}

.card, body {
  margin-top: 0px !important;
}
`
GM_addStyle(customCss);

function updateCardSize() {
  let card = $(".card");
  let img = $(".card img")
  let aspect = img.width() / img.height();
  
  let new_height = $(window).height();
  let new_width = aspect * new_height;
  if (new_width > $(window).width()) {
    new_width = $(window).width();
    new_height = new_width / aspect;
  }
  
  let sheet = document.styleSheets[0];
  let rules = sheet.cssRules || sheet.rules;
  if (rules[0].selectorText == ".card") {
    sheet.deleteRule(0);
  }
  if (window.location.pathname.startsWith("/p/")){
    console.log("updating card " + new_width + "x" + new_height);
    sheet.insertRule(".card{width: " + new_width + "px !important; height: " + new_height + "px !important}", 0);
  }
}


$(document).ready(function() {
  let navbar = $("#app-root > :first-child > :first-child");
  navbar.attr("id", "navbar");
  navbar.wrap("<div id='navbar-wrapper'></div>");
  let wrapper = $("#navbar-wrapper");
  wrapper.height(navbar.height());
    
  $.initialize(".card img", function(){
    updateCardSize();
    const o = new MutationObserver(updateCardSize);
    o.observe(document.querySelector(".card"), { attributes: true, attributeFilter: ["style"] });
  });
  
});