消除划动动画 可设置划动倍率和更新间隔 可设置双指放大双击复原
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// ==UserScript==
// @name 墨水屏电纸书划动优化
// @namespace cc.cxuan.books
// @version 1.28
// @description 消除划动动画 可设置划动倍率和更新间隔 可设置双指放大双击复原
// @match *://*/*
// @grant GM_getValue
// @grant GM_setValue
// @grant GM_registerMenuCommand
// @run-at document-end
// @noframes
// @license MIT
// @author cxuan.cc
// ==/UserScript==
(function(){
// 检查是否是双击复位后的重载，若是则恢复滚动位置并微调宽度
const RESET_FLAG = '__mzpx_reset', POS_KEY = '__mzpx_pos';
const docEl = document.scrollingElement || document.documentElement;
if (sessionStorage.getItem(RESET_FLAG)) {
// 增加 1px 宽度，确保缩放后能横向滚动
document.documentElement.style.width = (window.innerWidth + 1) + 'px'
}
// 原有设置项及功能
let mx = GM_getValue('multiplierX', 5);
let my = GM_getValue('multiplierY', 2);
let intervalSec = GM_getValue('interval', 0);
let enableDoubleReset = GM_getValue('enableDoubleReset', true);
GM_registerMenuCommand(`设置X轴移动倍率（当前 ${mx}）`, ()=>{
let v = parseFloat(prompt('X 轴滑动倍率:', mx));
if (!isNaN(v)) {
GM_setValue('multiplierX', mx = v);
location.reload();
}
});
GM_registerMenuCommand(`设置Y轴移动倍率（当前 ${my}）`, ()=>{
let v = parseFloat(prompt('Y 轴滑动倍率:', my));
if (!isNaN(v)) {
GM_setValue('multiplierY', my = v);
location.reload();
}
});
GM_registerMenuCommand(`设置更新间隔（当前 ${intervalSec}s）`, ()=>{
let v = parseFloat(prompt('更新间隔（秒，0=仅松手时刷新）:', intervalSec));
if (!isNaN(v)) {
GM_setValue('interval', intervalSec = v);
location.reload();
}
});
GM_registerMenuCommand(`切换双击复位（当前 ${enableDoubleReset ? '开' : '关'}）`, ()=>{
enableDoubleReset = !enableDoubleReset;
GM_setValue('enableDoubleReset', enableDoubleReset);
location.reload();
});
const initialZoom = parseFloat(document.body.style.zoom) || 1;
const touchMap = {}; // id -> { sx, sy, cx, cy, el, lastDx, lastDy }
let timerId = null;
function periodicUpdate() {
for (let id in touchMap) {
const info = touchMap[id];
if (info.cx == null || info.cy == null) continue;
let totalDx = (info.sx - info.cx) * mx;
let totalDy = (info.sy - info.cy) * my;
let dX = totalDx - (info.lastDx || 0);
let dY = totalDy - (info.lastDy || 0);
if (dX) info.el.scrollLeft += dX;
if (dY) info.el.scrollTop += dY;
info.lastDx = totalDx;
info.lastDy = totalDy;
}
}
function startTimer(){
if (intervalSec > 0 && !timerId) {
timerId = setInterval(periodicUpdate, intervalSec * 1000);
}
}
function stopTimer(){
if (timerId) {
clearInterval(timerId);
timerId = null;
}
}
document.addEventListener('touchstart', e=>{
if (e.touches.length > 1) return;
for (const t of e.changedTouches) {
let el = t.target;
while (el && el !== document) {
const style = getComputedStyle(el);
const canScrollY = el.scrollHeight > el.clientHeight && /auto|scroll/.test(style.overflowY);
const canScrollX = el.scrollWidth > el.clientWidth && /auto|scroll/.test(style.overflowX);
if (canScrollY || canScrollX) break;
el = el.parentNode;
}
if (!el || el === document) {
el = document.scrollingElement || document.documentElement;
}
touchMap[t.identifier] = {
sx: t.clientX, sy: t.clientY,
cx: t.clientX, cy: t.clientY,
el,
lastDx: 0, lastDy: 0
};
}
startTimer();
}, { passive:false });
document.addEventListener('touchmove', e=>{
if (e.touches.length > 1) return;
let doPrevent = false;
for (const t of e.changedTouches) {
const info = touchMap[t.identifier];
if (!info) continue;
info.cx = t.clientX;
info.cy = t.clientY;
// 允许顶部下拉刷新
if (!(info.el === (document.scrollingElement || document.documentElement)
&& info.el.scrollTop === 0
&& (t.clientY - info.sy) > 0)) {
doPrevent = true;
}
}
if (doPrevent) e.preventDefault();
}, { passive:false });
function finishTouch(e) {
if (e.touches.length > 1) return;
for (const t of e.changedTouches) {
const info = touchMap[t.identifier];
if (!info) continue;
if (intervalSec === 0) {
let dx = (info.sx - t.clientX) * mx;
let dy = (info.sy - t.clientY) * my;
info.el.scrollLeft += dx;
info.el.scrollTop += dy;
} else {
info.cx = t.clientX;
info.cy = t.clientY;
periodicUpdate();
}
delete touchMap[t.identifier];
}
if (Object.keys(touchMap).length === 0) stopTimer();
}
document.addEventListener('touchend', finishTouch, { passive:false });
document.addEventListener('touchcancel', finishTouch, { passive:false });
// 用 viewport 实现双击复位
let lastTap = 0;
document.addEventListener('touchend', e=>{
if (!enableDoubleReset) return;
// 仅单指
if (e.touches.length === 0 && e.changedTouches.length === 1) {
let now = Date.now();
if (now - lastTap < 300) {
// 记录当前位置
let lx = docEl.scrollLeft, ly = docEl.scrollTop;
try {
sessionStorage.setItem(POS_KEY, JSON.stringify({x:lx,y:ly}));
sessionStorage.setItem(RESET_FLAG, '1');
} catch(err){}
// 修改或插入 viewport
let meta = document.querySelector('meta[name=viewport]');
const vp = 'width=device-width, initial-scale=1, maximum-scale=1';
if (meta) {
meta.setAttribute('content', vp);
} else {
meta = document.createElement('meta');
meta.name = 'viewport';
meta.content = vp;
document.head.appendChild(meta);
}
// 强制重载
location.reload();
}
lastTap = now;
}
}, { passive:true });
})();