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Adds a fullscreen viewer to MangaDex
// ==UserScript==
// @name MangaDex Reader fullscreen
// @namespace Teasday
// @version 0.3.4.1
// @license CC-BY-NC-SA-4.0
// @description Adds a fullscreen viewer to MangaDex
// @author Teasday, Eva
// @match https://mangadex.com/chapter/*
// @icon https://mangadex.com/favicon.ico
// @homepage https://ewasion.github.io/userscripts/mangadex-fullscreen/
// @grant none
// ==/UserScript==
(function() {
'use strict';
// add css
const addStyle = function (css) {
const head = document.getElementsByTagName('head')[0];
if (!head) return;
const style = document.createElement('style');
style.type = 'text/css';
style.innerHTML = css;
head.appendChild(style);
};
addStyle(`
#reader-container {
position: relative;
width: calc(100vw - 15px);
left: calc(-50vw + 50%);
padding: 0 5px;
}
#reader-container.fullscreen {
z-index: 2000;
position: absolute;
top: 0;
left: 0;
right: 0;
padding: 0;
margin: 0;
background: #111;
display: flex;
align-items: center;
justify-content: center;
flex-flow: column nowrap;
height: 100%;
min-height: 100%;
width: auto;
}
#reader-container.fullscreen.fitwidth {
height: auto;
}
img.reader {
width: auto;
max-height: calc(100vh - 50px);
}
#reader-container.fullscreen img.reader {
height: 100%;
max-height: 100%;
min-height: 100%;
max-width: none;
}
#reader-container.fitwidth img.reader {
height: auto;
max-height: none;
max-width: 100%;
}
.reader-hover-menu {
display: none;
cursor: pointer;
margin: 5px;
font-size: 2em;
color: #ddd;
text-shadow: #000 1px 1px 4px;
transition: all 0.4s;
}
#reader-container.fullscreen ~ .reader-hover-menu {
z-index: 2020;
position: fixed;
display: block;
top: 5px;
opacity: 0.3;
}
#reader-container.fullscreen ~ .reader-hover-menu:hover {
opacity: 1;
background: rgba(0, 0, 0, .25);
box-shadow: 0 0 15px 15px rgba(0, 0, 0, .25);
border-radius: 50%;
}
#reader-container.fullscreen ~ .reader-hover-menu > div:hover {
color: #fff;
text-shadow: #fff 0 0 10px;
transition: all 0.25s;
}
#reader-container.fullscreen ~ .reader-hover-menu.pull-right {
right: 5px;
float: right;
text-align: right;
}
#reader-container.fullscreen ~ .reader-hover-menu.pull-left {
left: 5px;
float: left;
text-align: left;
}
#reader-page-controls,
#reader-page-controls div {
position: absolute;
top: 0;
width: 100%;
height: 100%;
cursor: pointer;
/* to help leave a little gap in the middle to make the image right-clickable */
pointer-events: none;
}
#reader-page-controls div {
pointer-events: auto;
}
#reader-page-controls .prev-page { left: 0; width: 45%; }
#reader-page-controls .next-page { right: 0; width: 45%; }
#reader-page-controls .prev-chapter { left: 0; width: 15%; }
#reader-page-controls .next-chapter { right: 0; width: 15%; }
#reader-page-controls .prev-chapter,
#reader-page-controls .next-chapter {
opacity: 0;
font-weight: bold;
font-size: 5vh;
background: radial-gradient(ellipse at center, rgba(10, 10, 10, .6) 0%, rgba(10, 10, 10, 0) 60%);
transition: opacity 0.2s;
display: flex;
align-items: center;
justify-content: center;
color: rgba(255, 255, 255, .8);
}
#reader-page-controls .prev-chapter:before {
content: '\xAB';
left: 0;
}
#reader-page-controls .next-chapter:before {
content: '\xBB';
right: 0;
}
#reader-page-controls .prev-chapter:hover,
#reader-page-controls .next-chapter:hover {
opacity: 0.9;
}
.footer { height: auto; }
.footer > p { margin-bottom: 0; }
`);
// control button data
const controls = {
fullscreen: {
icon: 'expand-arrows-alt',
titles: ['Enter fullscreen', 'Exit fullscreen'],
shortcut: 'F'.charCodeAt(0),
},
fitwidth: {
icon: 'expand',
titles: ['Fit to width (or auto)', 'Fit to height'],
shortcut: 'R'.charCodeAt(0),
}
};
// add html
const content = document.querySelector('#content');
const jumpCols = content.querySelectorAll('.row .col-sm-3');
const mangaLink = jumpCols[0].querySelector('a'); // works for now
const sizeControls = document.createElement('div');
sizeControls.id = 'reader-size-controls';
sizeControls.classList.add('reader-hover-menu', 'pull-right');
sizeControls.innerHTML = Object.entries(controls).reduce(function(acc, ctrl) {
return `${acc}<div class="control-${ctrl[0]}"><i class="fas fa-${ctrl[1].icon}"></i></div>`;
}, '');
const linkControls = document.createElement('div');
linkControls.id = 'reader-link-controls';
linkControls.classList.add('reader-hover-menu', 'pull-left');
linkControls.innerHTML = `<div><a href="${mangaLink.href}"><i class="fas fa-book" title="Back to Title"></i></a></div>`;
const newCol = document.createElement('div');
newCol.classList.add('col-sm-2');
newCol.innerHTML = Object.entries(controls).reduce(function(acc, ctrl, i) {
return `${acc}<button type="button" role="button" class="btn btn-default pull-right control-${ctrl[0]}"><i class="fas fa-${ctrl[1].icon}"></i></button>`;
}, '');
jumpCols[2].classList.replace('col-sm-3', 'col-sm-2');
jumpCols[3].classList.replace('col-sm-3', 'col-sm-2');
jumpCols[0].parentNode.appendChild(newCol);
const readerContainer = document.createElement('div');
readerContainer.id = 'reader-container';
readerContainer.appendChild(document.querySelector('#current_page'));
content.appendChild(readerContainer);
content.appendChild(linkControls);
content.appendChild(sizeControls);
const pageControls = document.createElement('div');
pageControls.id = 'reader-page-controls';
pageControls.innerHTML = `<div class="prev-page"><div class="prev-chapter"></div></div><div class="next-page"><div class="next-chapter"></div></div>`;
readerContainer.appendChild(pageControls);
pageControls.querySelector('.prev-page').addEventListener('click', function(evt) {
const cur = document.querySelector('[data-id="jump_page"] + .dropdown-menu .selected');
if (cur.previousElementSibling) {
cur.previousElementSibling.firstElementChild.click();
} else {
this.firstElementChild.click();
}
});
pageControls.querySelector('.prev-chapter').addEventListener('click', function(evt) {
evt.stopPropagation();
const cur = document.querySelector('[data-id="jump_chapter"] + .dropdown-menu .selected');
if (cur.previousElementSibling) {
cur.previousElementSibling.firstElementChild.click();
} else {
mangaLink.click();
}
});
pageControls.querySelector('.next-page').addEventListener('click', function(evt) {
const cur = document.querySelector('[data-id="jump_page"] + .dropdown-menu .selected');
if (cur.nextElementSibling) {
cur.nextElementSibling.firstElementChild.click();
} else {
this.firstElementChild.click();
}
});
pageControls.querySelector('.next-chapter').addEventListener('click', function(evt) {
evt.stopPropagation();
const cur = document.querySelector('[data-id="jump_chapter"] + .dropdown-menu .selected');
if (cur.nextElementSibling) {
cur.nextElementSibling.firstElementChild.click();
} else {
mangaLink.click();
}
});
// actual js
const updateCtrl = function(ctrl, val) {
localStorage.setItem(`reader.${ctrl}`, val);
for (const btn of document.querySelectorAll(`.control-${ctrl}`)) {
btn.title = controls[ctrl].titles[val ? 1 : 0];
readerContainer.classList.toggle(`${ctrl}`, val);
}
};
const updateAll = function() {
for (let ctrl of Object.keys(controls)) {
updateCtrl(ctrl, localStorage.getItem(`reader.${ctrl}`) === 'true');
}
};
const listenBtnClick = function(ctrl) {
for (const btn of document.querySelectorAll(`.control-${ctrl}`)) {
btn.addEventListener('click', function() {
updateCtrl(ctrl, localStorage.getItem(`reader.${ctrl}`) !== 'true');
}, false);
}
};
Object.keys(controls).map(listenBtnClick);
window.addEventListener('focus', updateAll, false);
updateAll();
})();