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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
当前为
// ==UserScript==
// @name 墨水屏电纸书划动优化
// @namespace cc.cxuan.books
// @version 1.26
// @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-start
// @noframes
// @license MIT
// @author cxuan.cc
// ==/UserScript==
(function(){
'use strict';
//设置项读取
let mx = GM_getValue('multiplierX', 5);
let my = GM_getValue('multiplierY', 2);
let intervalSec = GM_getValue('interval', 0);
let enableZoomAndReset = GM_getValue('enableZoomAndReset', true);
//注入/替换 viewport meta 来开启或禁止双指缩放
const applyViewport = ()=>{
let head = document.head || document.getElementsByTagName('head')[0] || document.documentElement;
// 删除旧的 viewport
Array.from(document.querySelectorAll('meta[name=viewport]')).forEach(m=>m.remove());
// 添加新的
const meta = document.createElement('meta');
meta.name = 'viewport';
if(enableZoomAndReset){
meta.content = 'width=device-width, initial-scale=1, minimum-scale=0.25, maximum-scale=10, user-scalable=yes';
} else {
meta.content = 'width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no';
}
head.prepend(meta);
};
applyViewport();
//菜单命令
GM_registerMenuCommand(`设置X轴倍率（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(`切换双指缩放+双击复位（当前 ${enableZoomAndReset?'开':'关'}）`, ()=>{
GM_setValue('enableZoomAndReset', enableZoomAndReset = !enableZoomAndReset);
location.reload();
});
const touchMap = {}; // id -> { sx, sy, cx, cy, el, lastDx, lastDy }
let timerId = null;
function periodicUpdate(){
for(let id in touchMap){
let 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; // 多指交给缩放
for(let t of e.changedTouches){
let el = t.target;
while(el && el!==document){
let style = getComputedStyle(el);
let canY = el.scrollHeight>el.clientHeight && /auto|scroll/.test(style.overflowY);
let canX = el.scrollWidth>el.clientWidth && /auto|scroll/.test(style.overflowX);
if(canX||canY) 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; // 多指缩放
let doPrevent = false;
for(let t of e.changedTouches){
let info = touchMap[t.identifier];
if(!info) continue;
info.cx = t.clientX;
info.cy = t.clientY;
// 允许顶端下拉刷新
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(let t of e.changedTouches){
let 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 });
//双击复位
let lastTap = 0;
document.addEventListener('touchend', e=>{
if(!enableZoomAndReset) return;
if(e.touches.length===0 && e.changedTouches.length===1){
let now = Date.now();
if(now - lastTap < 300){
// 复位 viewport initial-scale
let vm = document.querySelector('meta[name=viewport]');
if(vm){
let parts = vm.content.split(',');
for(let i=0;i<parts.length;i++){
if(parts[i].trim().startsWith('initial-scale')){
parts[i] = ' initial-scale=1';
}
}
vm.content = parts.join(',');
}
}
lastTap = now;
}
}, { passive:true });
})();