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漫畫櫃自動隐藏頂部元素、中鍵捲動頁面、圖片高度為視窗高度
// ==UserScript==
// @name 增強漫畫櫃手機版
// @namespace http://tampermonkey.net/
// @version 1.2
// @description 漫畫櫃自動隐藏頂部元素、中鍵捲動頁面、圖片高度為視窗高度
// @license MIT
// @match *://m.manhuagui.com/*
// @run-at document-end
// @grant none
// ==/UserScript==
(function() {
'use strict';
// 滑鼠中鍵捲動頁面（優化版）
let isMiddleButtonPressed = false;
let [lastX, lastY] = [0, 0];
document.addEventListener('mousedown', e => {
if (e.button === 1) {
isMiddleButtonPressed = true;
document.body.style.cursor = 'grab';
[lastX, lastY] = [e.clientX, e.clientY];
e.preventDefault();
}
});
document.addEventListener('mouseup', e => {
if (e.button === 1) {
isMiddleButtonPressed = false;
document.body.style.cursor = 'default';
}
});
document.addEventListener('mousemove', e => {
if (isMiddleButtonPressed) {
const deltaX = e.clientX - lastX;
const deltaY = e.clientY - lastY;
window.scrollBy(-deltaX * 1.5, -deltaY * 4); // 調整滑動速度
[lastX, lastY] = [e.clientX, e.clientY];
}
});
const url = window.location.href;
if (url.includes('html')&&url.includes('/comic/')) {
//改變css style
const style = document.createElement('style');
style.textContent = `
html {
overflow: overlay;
}
.manga-box {
text-align: center;
}
footer {
padding:0;
}
#popCat {
z-Index: 10;
}
#popHistory {
z-Index: 10;
}
#popSearch {
z-Index: 10;
}
#popShelf {
z-Index: 10;
}
.mainnav {
z-Index: 9;
}
.manga-box' {
z-Index: 5;
}
.manga-panel-box {
z-Index: 4;
}
.manga-panel-prev {
z-Index: 4;
}
`;
document.head.appendChild(style);
//隱藏元素
// 获取要隐藏的元素
const elementsToHide = ['.main-nav', '.main-bar'];
const header = document.querySelector('header');
const headerHeight = '42px';
if (header) {
Object.assign(header.style, {
position: 'absolute', top: '0', left: '0', width: '100%', height: headerHeight,
display: 'block', opacity: '0', zIndex: '1000', marginBottom: '0'
});
[...elementsToHide, 'header'].forEach(selector => {
const el = document.querySelector(selector);
el && el.addEventListener('mouseover', () => toggleHeaderVisibility(true));
el && el.addEventListener('mouseout', () => toggleHeaderVisibility(false));
});
// 頁面載入時先隱藏元素
elementsToHide.forEach(selector => {
const el = document.querySelector(selector);
el && (el.style.display = 'none');
});
}
function toggleHeaderVisibility(show) {
header.style.opacity = show ? '1' : '0';
elementsToHide.forEach(selector => {
const el = document.querySelector(selector);
el && (el.style.display = show ? 'block' : 'none');
});
// header.style.height = show ? '34px' : headerHeight;
header.style.position= show ? 'relative' : 'absolute';
}
// 動態改變圖片大小
function resizeImage() {
const img = document.querySelector('.manga-box img');
if (!img || !img.complete) return;
const [windowHeight, windowWidth] = [window.innerHeight, window.innerWidth];
const adjustedWidth = (windowHeight / img.naturalHeight) * img.naturalWidth;
if (img.naturalHeight > img.naturalWidth && windowHeight > 1.5*windowWidth) {
// 圖片高度大於圖片寬度，且圖片寬度超過視窗寬度，將圖片寬度設為視窗寬度
img.style.width = `${windowWidth}px`;
img.style.height = 'auto';
document.body.style.width = `${windowWidth}px`;
header.style.width = '100%';
// } else if (img.naturalHeight > windowHeight && adjustedWidth > windowWidth) {
// 高度大於視窗高度且調整過圖片寬度大於視窗寬度，將圖片高度設為視窗高度且header, .main-nav .main-bar為調整過寬度
// img.style.height = `${windowHeight}px`;
// img.style.width = 'auto';
// document.body.style.width = `${adjustedWidth}px`;
// header.style.width = `${adjustedWidth}px`;
} else if (img.naturalHeight > 2.5*img.naturalWidth) {
// 條漫為auto
img.style.height = 'auto';
img.style.width = 'auto';
document.body.style.width = '100%';
header.style.width = `100%`;
} else if (img.naturalHeight > windowHeight || img.naturalHeight > img.naturalWidth || adjustedWidth < windowWidth) {
// 圖片高度大於視窗高度，將圖片高度設為視窗高度
img.style.height = `${windowHeight}px`;
img.style.width = 'auto';
document.body.style.width = '100%';
header.style.width = `100%`;
} else if (img.naturalWidth > windowWidth) {
// 圖片寬度度大於視窗寬度，將header, .main-nav .main-bar為圖片寬度
img.style.height = 'auto';
img.style.width = 'auto';
document.body.style.width = `${img.naturalWidth}px`;
header.style.width = `${img.naturalWidth}px`;
} else {
// 其他情況，auto
img.style.height = 'auto';
img.style.width = 'auto';
document.body.style.width = '100%';
header.style.width = `100%`;
}
}
new MutationObserver(resizeImage).observe(document.body, { childList: true, subtree: true });
window.addEventListener('load', resizeImage);//-----------------------------------------------------------------------------------------------------------
// 自動捲動到右側大圖
function scrollToRightIfNeeded() {
const viewportWidth = window.innerWidth;
document.querySelectorAll('img').forEach(img => {
if (img.complete && img.offsetWidth > viewportWidth) {
setTimeout(() => window.scrollTo({ left: document.documentElement.scrollWidth }), 50);
}
});
}
window.addEventListener('load', scrollToRightIfNeeded);
new MutationObserver(scrollToRightIfNeeded).observe(document.body, { childList: true, subtree: true });
}
// 修改 cookie
const targetCookie = 'country=CN; path=/; domain=.manhuagui.com; expires=' + new Date(Date.now() + 7 * 864e5).toUTCString();
document.cookie = targetCookie;
})();