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只是一个 `window.showModalDialog()` 的 Polyfill
当前为
// ==UserScript==
// @name 解决哈工程查成绩网站在现代浏览器上显示不出来具体成绩对话框的问题
// @namespace https://github.com/Lifeni
// @version 0.0.1
// @description 只是一个 `window.showModalDialog()` 的 Polyfill
// @author Lifeni
// @match http*://*.hrbeu.edu.cn/*
// @license MIT
// @grant none
// ==/UserScript==
(function () {
// From https://github.com/niutech/showModalDialog
// Source https://unpkg.com/[email protected]/showModalDialog.js
window.spawn = window.spawn || function (gen) {
function continuer(verb, arg) {
var result;
try {
result = generator[verb](arg);
} catch (err) {
return Promise.reject(err);
}
if (result.done) {
return result.value;
} else {
return Promise.resolve(result.value).then(onFulfilled, onRejected);
}
}
var generator = gen();
var onFulfilled = continuer.bind(continuer, 'next');
var onRejected = continuer.bind(continuer, 'throw');
return onFulfilled();
};
window.showModalDialog = window.showModalDialog || function (url, arg, opt) {
url = url || ''; //URL of a dialog
arg = arg || null; //arguments to a dialog
opt = opt || 'dialogWidth:300px;dialogHeight:200px'; //options: dialogTop;dialogLeft;dialogWidth;dialogHeight or CSS styles
var caller = showModalDialog.caller.toString();
var dialog = document.body.appendChild(document.createElement('dialog'));
dialog.setAttribute('style', opt.replace(/dialog/gi, ''));
dialog.innerHTML = '<a href="#" id="dialog-close" style="position: absolute; top: 0; right: 5px; font-size: 20px; color: #000; text-decoration: none; outline: none;">×</a><iframe id="dialog-body" src="' + url + '" style="border: 0; width: 100%; height: 100%;"></iframe>';
document.getElementById('dialog-body').contentWindow.dialogArguments = arg;
document.getElementById('dialog-close').addEventListener('click', function (e) {
e.preventDefault();
dialog.close();
});
dialog.showModal();
//if using yield or async/await
if (caller.indexOf('yield') >= 0 || caller.indexOf('await') >= 0) {
return new Promise(function (resolve, reject) {
dialog.addEventListener('close', function () {
var returnValue = document.getElementById('dialog-body').contentWindow.returnValue;
document.body.removeChild(dialog);
resolve(returnValue);
});
});
}
//if using eval
var isNext = false;
var nextStmts = caller.split('\n').filter(function (stmt) {
if (isNext || stmt.indexOf('showModalDialog(') >= 0)
return isNext = true;
return false;
});
dialog.addEventListener('close', function () {
var returnValue = document.getElementById('dialog-body').contentWindow.returnValue;
document.body.removeChild(dialog);
nextStmts[0] = nextStmts[0].replace(/(window\.)?showModalDialog\(.*\)/g, JSON.stringify(returnValue));
eval('{\n' + nextStmts.join('\n'));
});
throw 'Execution stopped until showModalDialog is closed';
};
})();