Simplify the process of taking the attendance in the LMS.
当前为
// ==UserScript==
// @name LMS Attendance Helper
// @namespace Jery
// @version 1.4
// @description Simplify the process of taking the attendance in the LMS.
// @author Jery
// @license MIT
// @match https://lms.futurense.com/mod/attendance/take.php
// @icon https://www.nicepng.com/png/detail/270-2701205_jain-heritage-a-cambridge-school-kondapur-jain-university.png
// @grant none
// ==/UserScript==
/***************************************************************
* Add a start button to the page and use the
* button beside it as a reference for the styles.
***************************************************************/
let startButton = document.createElement("button");
startButton.innerHTML = "Start taking attendance";
startButton.type = "button";
startButton.className = "btn btn-start"
// Style the start button
startButton.style.position = "inherit";
startButton.style.color = "#fff";
startButton.style.backgroundColor = "#6c757d";
startButton.style.transition = "color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out";
// Add hover (mouse-in) effects to the start button
startButton.addEventListener("mouseenter", function () {
startButton.style.backgroundColor = "#5c636a";
startButton.style.borderColor = "#565e64";
});
// Add hover (mouse-out) effects to the start button
startButton.addEventListener("mouseleave", function () {
startButton.style.backgroundColor = "6c757d";
startButton.style.borderColor = "inherit";
});
// Append the start button to the right of the reference element
document.querySelector(".btn.btn-secondary").parentElement.appendChild(startButton);
// Add an event listener to the start button
startButton.addEventListener("click", function () {
attendance();
});
/***************************************************************
* Main Function to handle attendance.
* Shows a prompt for entering students serial number.
* First marks everyone (who isnt marked yet) as ABSENT
* and then marks the entered numbers as PRESENT.
***************************************************************/
function attendance() {
// Set all (unmarked) students to ABSENT at start.
document.querySelector("td.cell.c4 [name='setallstatus-select']").value = "unselected";
document.querySelector("td.cell.c6 input[name='setallstatuses']").checked = true;
// Initialize a variable to end loop
let stop = false;
// Not using a while loop here because the script works in a single thread,
// so it wont be able to reflect any changes until the while loop ends.
let loop = () => {
if (stop) return;
// Create a prompt to get serial number of student
let serial = prompt("Enter the LMS serial number (or enter a non-numeric value to end)");
// Check wheter the input is a number of else terminate.
if (isNaN(serial)) {
stop = true;
} else {
// remove whitespaces from serial number
serial = serial.trim();
// Initialize the rows and cells
let rows = document.querySelectorAll("table tr");
for (let i = 0; i < rows.length; i++) {
let cells = rows[i].querySelectorAll("td");
if (cells.length > 0 && cells[0].textContent === serial) {
cells[6].querySelector("input").checked = true; // Mark the cell (student) for present
showToast("Marked S.No." + serial + " as present.") // Display success message
break;
}
}
}
setTimeout(loop, 0);
};
loop();
}
/***************************************************************
* Display a simple toast message on the top right of the screen
***************************************************************/
function showToast(message) {
var x = document.createElement("div");
x.innerHTML = message;
x.style.color = "#000";
x.style.backgroundColor = "#fdba2f";
x.style.borderRadius = "10px";
x.style.padding = "10px";
x.style.position = "fixed";
x.style.top = "5px";
x.style.right = "5px";
x.style.fontSize = "large";
x.style.fontWeight = "bold";
x.style.zIndex = "10000";
x.style.display = "block";
x.style.borderColor = "#565e64";
x.style.transition = "right 2s ease-in-out";
document.body.appendChild(x);
setTimeout(function () {
x.style.right = "-1000px";
}, 2000);
setTimeout(function () {
x.style.display = "none";
document.body.removeChild(x);
}, 3000);
}