获取截图及json
当前为
// ==UserScript==
// @name FinalSpider
// @namespace http://tampermonkey.net/
// @version 0.2
// @description 获取截图及json
// @author You
// @match *://*/*
// @license MIT
// @icon data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
// @grant none
// ==/UserScript==
(function () {
'use strict';
// * 在本地进行文件保存
// * @param {String} data 要保存到本地的图片数据/或路径
// * @param {String} filename 文件名
// */
function saveFile(data, filename) {
// 创建一个<a>标签
let save_link = document.createElement('a');
save_link.href = data;
save_link.download = filename;
let event = document.createEvent('MouseEvents');
event.initMouseEvent('click', true, false, window, 0,
0, 0, 0, 0, false, false,
false, false, 0, null);
save_link.dispatchEvent(event);
}
//本地下载快照 ，name是文件的部分名称
function doLoadQR(name) {
//新建一个画布元素
let canvas2 = document.createElement("canvas");
//获取该元素区块的本身宽高
let w = 3000;
let h = 2000;
// console.log(w+"======"+h);
//因为直接用默认画布会模糊，因此自定义画布，设置画布尺寸为容器的两倍大小，再将内容放大两倍画上去，
// 修改偏移量，就可以解决模糊问题
//画布真实宽高
canvas2.width = w;
canvas2.height = h;
//宽高宽高
canvas2.style.width = w + "px";
canvas2.style.height = h + "px";
//设置画布的内容
let context = canvas2.getContext("2d");
//x,y轴放大两倍
//context.scale(2, 2);
//获取容器边距对象
let rect = document.getElementsByTagName('body')[0];
//设置偏移量
context.translate('-' + rect.left, '-' + rect.top);
//调用库
html2canvas(document.getElementsByTagName('body')[0]
, {
useCORS: true,
scale: 2,
width: w,
height: h,
//使用自定义的画布
canvas: canvas2,
// window.devicePixelRatio是设备像素比
dpi: window.devicePixelRatio,//* 2,
}
).then(function (canvas) {
// 回调生成的画布canvas对象
// 获取生成的图片的相对url，其实将bese64加密的数据 的数据类型image/png换成image/octet-stream
let imgUri = canvas.toDataURL("image/png")
.replace("image/png", "image/octet-stream");
//文件名称
let filename = (new Date()).getTime() + "_" + name + '.png';
//下载
saveFile(imgUri, filename);
});
}
var script = document.createElement('script');
script.src = "http://html2canvas.hertzen.com/dist/html2canvas.min.js";
document.getElementsByTagName('head')[0].appendChild(script);
var input = document.createElement("input");
input.type = "text";
input.style.width = "300px";
input.style.height = "50px";
input.style.borderRadius = "10px";
input.style.textAlign = "center";
input.value = (new Date()).getTime() + '默认名称';
input.style.borderColor = "#444654";
input.style.marginBottom = "20px";
var button = document.createElement("button"); //创建一个input对象（提示框按钮）
button.id = "id001";
button.textContent = "DownLoad";
button.style.width = "200px";
button.style.height = "50px";
button.style.color = "#000"
button.style.alignItems = "center";
button.style.borderRadius = "15px";
button.style.backgroundColor = "#ECF8FF";
button.style.border = "none";
button.style.marginBottom = "20px";
var isOnButton = document.createElement("button");
isOnButton.textContent = "已开启跳转";
isOnButton.style.width = "200px";
isOnButton.style.height = "50px";
isOnButton.style.color = "#000"
isOnButton.style.alignItems = "center";
isOnButton.style.borderRadius = "15px";
isOnButton.style.backgroundColor = "#ECF8FF";
isOnButton.style.border = "none";
isOnButton.style.marginBottom = "20px";
var DownloadPicture = document.createElement("button");
DownloadPicture.textContent = "下载快照";
DownloadPicture.style.width = "200px";
DownloadPicture.style.height = "50px";
DownloadPicture.style.color = "#000"
DownloadPicture.style.alignItems = "center";
DownloadPicture.style.borderRadius = "15px";
DownloadPicture.style.backgroundColor = "#ECF8FF";
DownloadPicture.style.border = "none";
DownloadPicture.style.marginBottom = "20px";
var container = document.createElement("div");
container.appendChild(input);
container.appendChild(button);
container.appendChild(DownloadPicture);
container.appendChild(isOnButton);
container.style.display = "flex";
container.style.flexDirection = "column";
container.style.justifyContent = "center";
container.style.alignItems = "center";
var isOn = true;
isOnButton.onclick = function () {
isOn = !isOn;
if (isOn) {
isOnButton.textContent = '已开启跳转';
isOnButton.style.backgroundColor = '#ECF8FF';
isOnButton.style.color = '#000';
} else {
isOnButton.textContent = '已关闭跳转';
isOnButton.style.backgroundColor = '#ECF8FF';
isOnButton.style.color = '#000';
}
}
DownloadPicture.onclick = function () {
function isEmpty(s) {
return s == undefined || s === '';
}
var iframe = document.getElementsByTagName('iframe')[0];
if (isOn && !isEmpty(iframe)) {
var iframeSrc = iframe.getAttribute('src');
window.location.href = iframeSrc;
// 创建消息提示框元素
var alertBox = document.createElement('div');
alertBox.setAttribute('class', 'alert-box');
alertBox.style.position = 'fixed';
alertBox.style.top = '0';
alertBox.style.width = '100%';
alertBox.style.padding = '10px';
alertBox.style.backgroundColor = '#007bff';
alertBox.style.color = '#fff';
alertBox.style.textAlign = 'center';
alertBox.style.zIndex = '9999';
alertBox.style.transition = 'transform .5s ease-in-out';
// 创建消息提示框文本元素
var alertText = document.createElement('span');
alertText.setAttribute('class', 'alert-text');
alertBox.appendChild(alertText);
// 添加消息提示框到页面
document.body.appendChild(alertBox);
// 显示消息提示框
function showAlert(message) {
alertText.innerHTML = message;
alertBox.style.transform = 'translateY(0)';
setTimeout(function () {
alertBox.style.transform = 'translateY(-100%)';
}, 3000);
}
// 示例调用代码
showAlert('~已跳转到子文档对应网站~');
return;
}
doLoadQR(input.value);
};
//绑定按键点击功能
button.onclick = function () {
//如果有iframe元素,则跳转到对应网站,可以选择是否跳转
var iframe = document.getElementsByTagName('iframe')[0];
if (isOn && !isEmpty(iframe)) {
var iframeSrc = iframe.getAttribute('src');
window.location.href = iframeSrc;
// 创建消息提示框元素
var alertBox = document.createElement('div');
alertBox.setAttribute('class', 'alert-box');
alertBox.style.position = 'fixed';
alertBox.style.top = '0';
alertBox.style.width = '100%';
alertBox.style.padding = '10px';
alertBox.style.backgroundColor = '#007bff';
alertBox.style.color = '#fff';
alertBox.style.textAlign = 'center';
alertBox.style.zIndex = '9999';
alertBox.style.transition = 'transform .5s ease-in-out';
// 创建消息提示框文本元素
var alertText = document.createElement('span');
alertText.setAttribute('class', 'alert-text');
alertBox.appendChild(alertText);
// 添加消息提示框到页面
document.body.appendChild(alertBox);
// 显示消息提示框
function showAlert(message) {
alertText.innerHTML = message;
alertBox.style.transform = 'translateY(0)';
setTimeout(function () {
alertBox.style.transform = 'translateY(-100%)';
}, 3000);
}
// 示例调用代码
showAlert('~已跳转到子文档对应网站~');
return;
}
// Your code here...
var json = "{\"container\":{\"height\":" + document.documentElement.scrollHeight + "},\"blocks\":[";
var reg = /(https?|http|ftp|file):\/\/[-A-Za-z0-9+&@#/%?=~_|!:,.;]+[-A-Za-z0-9+&@#/%=~_|]/g;
var numReg = /[1-9][0-9]*/g;
// 遍历所有子元素
var nodes;
nodes = document.all;
//var pageWidth = document.documentElement.scrollWidth;
var pageHeight = document.documentElement.scrollHeight;
function isEmpty(s) {
return s == undefined || s === '';
}
function getElementPosInfo(width, height, left, top) {
return "\"width\":" + width +
",\"height\":" + height +
",\"left\":" + left +
",\"top\":" + top + ",";
}
function getElementLeft(element) {
var actualLeft = element.offsetLeft;
var current = element.offsetParent;
while (current !== null) {
actualLeft += current.offsetLeft;
current = current.offsetParent;
}
return actualLeft;
}
function getElementTop(element) {
var actualTop = element.offsetTop;
var current = element.offsetParent;
while (current !== null) {
actualTop += current.offsetTop;
current = current.offsetParent;
}
return actualTop;
}
for (var i = 0; i < nodes.length; i++) {
var o = nodes[i];
if (isEmpty(o)) {
continue;
}
var text = o.innerText;
var style = getComputedStyle(o);
var color = style.getPropertyValue('color');
var fontSize = style.getPropertyValue('font-size').match(numReg);
var backImg = style.getPropertyValue('background-image').match(reg);
var textAlign = style.getPropertyValue('text-align');
var backgroundColor = style.getPropertyValue('background-color');
var error = 0;
try {
var otop = getElementTop(o);
var oleft = getElementLeft(o);
var owidth = o.offsetWidth;
var oheight = o.offsetHeight;
} catch (error) {
console.log("Find exception");
error = 1;
}
if (error === 1) {
continue;
}
if (owidth <= 0 || oheight <= 0 || otop < 0 || oleft < 0) {
continue;
}
var posInfo = getElementPosInfo(owidth, oheight, oleft, otop);
if (/*(o.tagName === 'A' && o.href != null) ||*/ o.tagName === 'btn') {
// add a button
var p = o;
while (p.firstElementChild !== null) {
p = p.firstElementChild;
}
text = p.innerHTML;
var src = p.src;
json = json + "{\"key\":\"默认按钮\",\"componentProps\":{},"
+ posInfo
+ "\"text\":\"" + text
+ "\"";
//+ "\",\"font\":\""+font
if (src !== undefined) {
json = json + ",\"src\":\"" + src + "\"";
}
json = json + ",\"zIndex\":3},";
} else if ((text != null && o.firstElementChild === null && (o.tagName === 'H1' || o.tagName === 'H2' || o.tagName === 'H3' || o.tagName === 'H4' || o.tagName === 'H5' || o.tagName === 'H6' ||
o.tagName === 'A' || o.tagName === 'SPAN' || o.tagName === 'DIV' || o.tagName === 'P' || o.tagName === 'LI' || o.tagName === 'Q' || o.tagName === 'FONT' || o.tagName === 'B'))) {
// add a label
json = json + "{\"key\":\"文本框\",\"componentProps\":{},"
+ posInfo
+ "\"text\":\"" + text
+ "\",\"fontColor\":\"" + color
+ "\",\"size\":\"" + fontSize
+ "\",\"textAlign\":\"" + textAlign
+ "\",\"zIndex\":3},";
// "\",\"font\":\""+font+
} else if (o.tagName === 'IMG') {
// add an image
json = json + "{\"key\":\"图片\","
+ posInfo
+ "\"componentProps\":{"
+ "\"src\":\"" + o.src
+ "\"},\"zIndex\":3},";
// + "\",\"font\":\""+font
// + "\"text\":\""+text
} else if (!isEmpty(backImg)) {
// add a background image
json = json + "{\"key\":\"网站模块背景\",\"componentProps\":{},"
+ posInfo
+ "\"bgcImage\":\"" + backImg
+ "\",\"bgcColor\":\"rgba(252, 214, 41, 0)\",\"zIndex\":1},";
} else if ((o.tagName === 'DIV' || o.tagName === 'SECTION' || o.tagName === 'FOOTER' || o.tagName === 'BLOCKQUOTE')
&& backgroundColor != 'rgb(255, 255, 255)'
&& backgroundColor != 'rgba(255, 255, 255, 1)'
&& backgroundColor != 'rgba(255, 255, 255, 0)'
&& backgroundColor != 'rgba(0, 0, 0, 0)'
&& !isEmpty(o)) {
// add a color block
json = json + "{\"key\":\"网站模块背景\",\"componentProps\":{},"
+ posInfo
+ "\"bgcColor\":\"" + backgroundColor + "\",\"zIndex\":1},";
}
}
json = json.substr(0, json.length - 1) + "],\"focusData\":{}}";
var downelem = document.createElement('a');
downelem.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(json));
downelem.setAttribute('download', input.value);
downelem.style.display = 'none';
document.body.appendChild(downelem);
downelem.click();
document.body.removeChild(downelem);
/*var url = "http://121.36.109.90:8000/api/spider/add";
var httpRequest = new XMLHttpRequest();
httpRequest.open('POST', url, true);
httpRequest.setRequestHeader("Content-type", "application/json");
var obj = {
"json": json,
};
httpRequest.send(JSON.stringify(obj));
// 响应后的回调函数
httpRequest.onreadystatechange = function () {
if (httpRequest.readyState == 4 && httpRequest.status == 200) {
var json = httpRequest.responseText;
console.log(json);
}
};*/
};
window.top.document.getElementsByTagName('body')[0].appendChild(container);
})();