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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 1.28
// @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(){
'use strict';
// 1. 强制移除meta viewport缩放限制，并读取原initial-scale
let meta = document.querySelector('meta[name=viewport]'), initialScale = 1;
if(meta){
let c = meta.content, m = c.match(/initial-scale=([\d.]+)/);
if(m) initialScale = parseFloat(m[1]);
let nc = c.replace(/maximum-scale=[\d.]+/, '')
.replace(/minimum-scale=[\d.]+/, '')
.replace(/user-scalable=\w+/, '').trim();
meta.content = nc + (nc?',' : '') + 'minimum-scale=0.1,maximum-scale=10,user-scalable=yes';
}
document.body.style.zoom = initialScale; // 应用初始缩放
// --- 设置 ---
let mx = GM_getValue('multiplierX',5);
let my = GM_getValue('multiplierY',2);
let intervalSec = GM_getValue('interval',0);
let enableZoom = GM_getValue('enableZoom', 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=仅松手刷新）:',intervalSec));
if(!isNaN(v)) GM_setValue('interval',intervalSec=v), location.reload();
});
GM_registerMenuCommand(`切换缩放功能（捏合缩放+双击复位）（当前 ${enableZoom?'开':'关'}）`, ()=>{
enableZoom = !enableZoom;
GM_setValue('enableZoom',enableZoom);
location.reload();
});
const touchMap = {}, timer = { id:0 };
function periodicUpdate(){
let zoom = parseFloat(document.body.style.zoom)||1;
for(let id in touchMap){
let info = touchMap[id];
if(info.cx==null) continue;
let dxTotal = (info.sx - info.cx) * mx / zoom;
let dyTotal = (info.sy - info.cy) * my / zoom;
let dX = dxTotal - (info.lastDx||0);
let dY = dyTotal - (info.lastDy||0);
if(dX) info.el.scrollLeft += dX;
if(dY) info.el.scrollTop += dY;
info.lastDx = dxTotal;
info.lastDy = dyTotal;
}
}
function startTimer(){
if(intervalSec>0 && !timer.id) timer.id = setInterval(periodicUpdate, intervalSec*1000);
}
function stopTimer(){
if(timer.id){ clearInterval(timer.id); timer.id=0; }
}
// 捏合缩放记录
const pinch = { startDist:0, startZoom:initialScale };
document.addEventListener('touchstart', e=>{
if(enableZoom && e.touches.length===2){
let [t0,t1] = e.touches;
pinch.startDist = Math.hypot(t0.clientX-t1.clientX,t0.clientY-t1.clientY);
pinch.startZoom = parseFloat(document.body.style.zoom)||initialScale;
e.preventDefault();
return;
}
if(e.touches.length>1) return;
for(let t of e.changedTouches){
let el = t.target;
while(el && el!==document){
let s=getComputedStyle(el);
if((el.scrollHeight>el.clientHeight&&/auto|scroll/.test(s.overflowY))||
(el.scrollWidth>el.clientWidth&&/auto|scroll/.test(s.overflowX))) 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(enableZoom && e.touches.length===2){
let [t0,t1] = e.touches;
let dist = Math.hypot(t0.clientX-t1.clientX,t0.clientY-t1.clientY);
document.body.style.zoom = pinch.startZoom * (dist / pinch.startDist);
return;
}
if(e.touches.length>1) return;
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;
let docEl = document.scrollingElement||document.documentElement;
if(!(info.el===docEl && docEl.scrollTop===0 && (t.clientY-info.sy)>0)){
doPrevent=true;
}
}
if(doPrevent) e.preventDefault();
},{passive:false});
function finishTouch(e){
if(enableZoom && e.touches.length>=1) return;
if(!enableZoom && e.touches.length>1) return;
for(let t of e.changedTouches){
let info = touchMap[t.identifier];
if(!info) continue;
let zoom = parseFloat(document.body.style.zoom)||1;
if(intervalSec===0){
let dx = (info.sx - t.clientX)*mx/zoom;
let dy = (info.sy - t.clientY)*my/zoom;
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) stopTimer();
}
document.addEventListener('touchend', finishTouch,{passive:false});
document.addEventListener('touchcancel', finishTouch,{passive:false});
// 双击复位到 initialScale
let lastTap=0;
document.addEventListener('touchend', e=>{
if(!enableZoom) return;
if(e.touches.length===0 && e.changedTouches.length===1){
let now = Date.now();
if(now - lastTap < 300){
document.body.style.zoom = initialScale;
}
lastTap = now;
}
},{passive:true});
})();