// ==UserScript==
// @name 鼠标悬停图片放大预览-大师兄
// @date 05/27/2021
// @namespace https://greasyfork.org/zh-CN/users/724782-caogen1207
// @match *://*/*
// @version 4.0
// @author 大师兄 [email protected] VX:caogen
// @license 2022年1月8日22:30:21
// @description 电脑端可以跟随鼠标悬停图片放大预览,找了很多图片放大的脚本,都没有一个能用的,只有自己写。大部分网站的图片都可以已支持悬浮放大了。完美适应大小屏幕,图片超大也会图片等比例自适应浏览器。鼠标跟随也优化。欢迎好评反馈,有时间就更新
// @note 2.5 2021年10月4日更新超大图片显示问题
// @note 2.6 2021年10月14日解决某些网站不能正常使用问题
// @note 3.0 2021年11月6日已更新大部分网站不能识别图片放大功能
// @note 3.1 2022年10月8日18:42:41 解决淘宝缩略图问题,例如详情页里主图缩略图悬浮,猜你喜欢的悬浮放大出原图
// @note 3.2 2022年10月9日18:28:17 解决某些网站图片显示成直线问题
// @note 4.0 2022年10月10日12:33:13 修复了大图显示混乱问题;增加了有些不能放大的图片的功能;增加了天猫、微博直接放大出原图功能,不是放大缩略图
// @run-at document-idle
// @require https://code.jquery.com/jquery-3.6.0.min.js
// @icon http://inews.gtimg.com/newsapp_bt/0/14677352341/641
// @grant none
// ==/UserScript==
(function() {
console.log("鼠标悬停图片放大预览-大师兄");
fangdatupian();
function fangdatupian() {
//添加图片盒子
$(document.body).append("<div id='dashixiong_preview' style='display:none;pointer-events:none;padding:0px;margin:0px;left:0px;top:0px;background-color:#00000000;position:fixed;z-index:9999999998;'><img /></div>"); //弹出一个div里面放着图片
jiantingimg();
//jiantingWEIimg();
}
function jiantingimg(){
$("body").on("mouseenter mousemove mouseout", "img,div,picture", function(e){
e.stopPropagation();
let imgw,imgh,imgsrc;
let target = e.target;
if(e.type == "mouseenter"){
console.log(target.nodeName, e);
switch(target.nodeName){
case "IMG":
imgsrc = target.src;
break;
case "DIV":
if(target.dataset.role == "img"){
let img = target.parentNode.querySelector('img');
if (img) console.log(img);
imgsrc = img.src;
}else if(target.previousSibling.nodeName == "IMG"){
imgsrc = target.previousSibling.src;
}else if (target.offsetParent.parentNode.firstElementChild.nodeName == "IMG"){
imgsrc = target.offsetParent.parentNode.firstElementChild.src;
}else{
return;
}
break;
case "PICTURE":
console.log(target.querySelector("img"));
break;
default :
console.log();
}
if(!imgsrc)return;
let url = window.location.hostname;
if(/weibo.com/i.test(url)){
if(/\/orj360\//i.test(imgsrc)){
imgsrc = imgsrc.replace(/orj360/i,'mw2000');
}
}else if(/(taobao|tmall).com/i.test(url)){
//解决淘宝缩略图问题
if(/.(jpg|png|jpeg)_(\d+)x(\d+).jpg_.webp/i.test(imgsrc)){
imgsrc = imgsrc.replace(/_(\d+)x(\d+).jpg_.webp/i,'')
}else if(/.(jpg|png|jpeg)_(\d+)x(\d+)q(90|75|50)(s50)?.jpg_.webp/i.test(imgsrc)){
imgsrc = imgsrc.replace(/_(\d+)x(\d+)q(90|75|50)(s50)?.jpg_.webp/i,'')
}else if(/.(jpg|png|jpeg)_q(90|75).jpg/i.test(imgsrc)){
imgsrc = imgsrc.replace(/_q(90|75).jpg/i,'')
}else if(/.(jpg|png|jpeg)_(\d+)x(\d+).jpg/i.test(imgsrc)){
imgsrc = imgsrc.replace(/_(\d+)x(\d+).jpg/i,'')
}
}
$("#dashixiong_preview img").attr("src", imgsrc).attr("style","width: auto").attr("style","height: auto");
tupianweizhi(e, imgw, imgh);
$("#dashixiong_preview").stop(true, false).show();
}else if(e.type == "mousemove"){
$("#dashixiong_preview img").attr("src", imgsrc).attr("style","width: auto").attr("style","height: auto");
imgw = $("#dashixiong_preview img").width();
imgh = $("#dashixiong_preview img").height();
tupianweizhi(e, imgw, imgh);
}else if(e.type == "mouseout"){
$("#dashixiong_preview").stop(true, false).hide();
};
});
}
function jiantingWEIimg(){
$("body").on("mouseenter", "div", function(e){
if($(this).css('position') == "absolute"){
//console.log($(this).css('backgroundImage') == "none");
e.stopPropagation();
let aa = $(this);
let x1 = aa.offset().left;
let y1 = aa.offset().top;
let x2 = aa.offset().left + aa.width();
let y2 = aa.offset().top + aa.height();
if(e.type == "mouseenter"){
aa.stop(false, false).hide();
$(document).mousemove(function(de){
let x = de.pageX, y = de.pageY;
if( x < x1 || y < y1 || x > x2 || y > y2){
//console.log(x, y, x1, y1);
aa.stop(false, false).fadeIn();
$(document).unbind(de);
}
});
}
}
});
}
function tupianweizhi(e, img_width, img_height) {
$("#dashixiong_preview img").width(img_width);
$("#dashixiong_preview img").height(img_height);
let jianxi = 20;
let window_height = $(window).height();
let window_width = $(window).width();
if(window_height > window.screen.height)window_height = document.body.clientHeight;
if (img_height > window_height || img_width > window_width) {
if (window_width*img_height/img_width > window_height) {
$("#dashixiong_preview img").css({
"height": window_height,
"width": img_width * window_height / img_height
});
}else{
$("#dashixiong_preview img").css({
"height": img_height * window_width / img_width,
"width": window_width
});
};
};
console.log(window_height,img_height);
img_height = $("#dashixiong_preview img").height();
img_width = $("#dashixiong_preview img").width();
if (img_height + e.clientY < window_height && img_width + e.clientX < window_width){
//console.log("显示在鼠标右下");
$("#dashixiong_preview").css({
top: e.clientY + jianxi,
left: (e.clientX + img_width + jianxi > window_width) ? window_width - img_width - jianxi : e.clientX + jianxi,
});
} else if (img_height + e.clientY > window_height && img_width + e.clientX < window_width) {
//console.log("显示高度超过屏幕,显示在鼠标左右两侧");
if (img_height + e.clientY + jianxi > window_height) {
$("#dashixiong_preview").css({
top: (e.clientY - img_height - jianxi) < 0 ? 0 : e.clientY - img_height - jianxi,
left: ((e.clientX - img_width - jianxi) < 0 && e.clientX + jianxi + img_width > window_width) ? window_width - img_width - jianxi : e.clientX + jianxi
});
}
} else if (img_width + e.clientX + jianxi > window_width && img_height + e.clientY < window_height) {
//console.log("显示宽度超过屏幕,显示在鼠标上下两侧");
$("#dashixiong_preview").css({
top: (e.clientY - img_height - jianxi) < 0 ? 0 : e.clientY + jianxi,
left: (e.clientX - img_width - jianxi) < 0 ? 0 : e.clientX - img_width - jianxi,
});
} else if (img_width + e.clientX > window_width && img_height + e.clientY > window_height) {
//console.log("显示高度和宽度均超过屏幕");
if (e.clientX - img_width - jianxi > 0 && e.clientY - img_height - jianxi > 0) {//左上角
$("#dashixiong_preview").css({
top: e.clientY - img_height - jianxi,
left: e.clientX - img_width - jianxi,
});
} else if (e.clientX - img_width - jianxi < 0 && e.clientY - img_height - jianxi > 0) {//宽度超大左上角,左边固定
$("#dashixiong_preview").css({
top: e.clientY - img_height - jianxi,
left: 0,
});
} else if (e.clientX - img_width - jianxi > 0 && e.clientY - img_height - jianxi < 0) {//高度超大左上角,顶边固定
$("#dashixiong_preview").css({
top: 0,
left: e.clientX - img_width - jianxi,
});
} else if (e.clientX - img_width - jianxi < 0 && e.clientY - img_height - jianxi < 0) {//高宽均超大,固定左上角边
$("#dashixiong_preview").css({
top: 0,
left: 0,
});
};
}
}
function getImageWidth(img_url) {
// 创建对象
var img = new Image();
// 改变图片的src
img.src = img_url;
// 判断是否有缓存
if(img.complete){
return [img.width,img.height];
}else{
// 加载完成执行
img.onload = function(){
return [img.width,img.height];
};
}
}
function Toast(msg,duration){
duration=isNaN(duration)?3000:duration;
let m = document.createElement('div');
m.innerHTML = msg;
m.style.cssText="max-width:60%;min-width: 150px;padding:0 14px;height: 40px;color: rgb(255, 255, 255);line-height: 40px;text-align: center;border-radius: 4px;position: fixed;top: 50%;left: 50%;transform: translate(-50%, -50%);z-index: 999999;background: rgba(0, 0, 0,.7);font-size: 16px;";
document.body.appendChild(m);
setTimeout(function() {
let d = 0.5;
m.style.webkitTransition = '-webkit-transform ' + d + 's ease-in, opacity ' + d + 's ease-in';
m.style.opacity = '0';
setTimeout(function() { document.body.removeChild(m) }, d * 1000);
}, duration);
}
function getViewprotOffset() {
if (window.innerWidth) {
return [window.innerWidth,window.innerHeight]
} else {
if (document.compatMode == "BackCompat") {
return [document.body.clientWidth, document.body.clientHeight]
} else {
return [document.documentElement.clientWidth, document.documentElement.clientHeight]
}
}
}
})();