Automatically apply customizations to Canvas modules: check 'mark done' checkbox before navigating to the next video in Canvas; reduce the size of large images; increase the size of Kaltura video player.
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// ==UserScript==
// @name Automated Modules Customization
// @version 1.0.1
// @namespace http://tampermonkey.net/
// @description Automatically apply customizations to Canvas modules: check 'mark done' checkbox before navigating to the next video in Canvas; reduce the size of large images; increase the size of Kaltura video player.
// @author Kyle Nakamura
// @match https://gatech.instructure.com/courses/*/pages/*
// @icon https://www.google.com/s2/favicons?domain=instructure.com
// ==/UserScript==
// Quick note about delays (timeouts):
// Canvas loads the video player and images last, so customizations to
// those elements must be delayed. You can adjust the delay if your elements
// seem to load slower or faster than the pre-set 1.5 seconds.
(() => {
'use strict';
// Enable auto-checkbox toggle with a delay of 500ms
setTimeout(enableAutoCheckboxToggle, 500);
// Reduce the size of images with a delay of 1500ms
setTimeout(reduceTranscriptImageSizes, 1500);
// Increase the size of the Kaltura video player with a delay of 1500ms
setTimeout(increaseKalturaSize, 1500);
})();
function enableAutoCheckboxToggle() {
try {
const checkbox = $('button#mark-as-done-checkbox'),
checkboxIconClass = $(checkbox).find('i')[0].className,
buttonNext = $('span.module-sequence-footer-button--next').find('a');
buttonNext.on('click', () => {
if (checkboxIconClass === 'icon-empty') checkbox.click();
});
} catch (err) {
console.error('Tampermonkey script "Auto Checkbox Toggle" failed.\nDetails:', err);
}
}
function reduceTranscriptImageSizes() {
try {
$('.user_content img').each(function() {
$(this).css('max-width', '30%');
});
} catch (err) {
console.error('Tampermonkey script "Reduce Transcript Image Sizes" failed.\nDetails:', err);
}
}
function increaseKalturaSize() {
try {
const kalturaPlayer = $('iframe[src^="https://gatech.instructure.com"')[0];
kalturaPlayer.width = '';
kalturaPlayer.height = '';
kalturaPlayer.style.width = '100%';
helperFuncApplyNewHeight(kalturaPlayer);
let resizeTimer;
$(window).on('resize', e => {
clearTimeout(resizeTimer);
resizeTimer = setTimeout(() => {
helperFuncApplyNewHeight(kalturaPlayer);
}, 250);
});
} catch (err) {
console.error('Tampermonkey script "Increase Kaltura Size" failed.\nDetails:', err);
}
}
// Helper function for `increaseKalturaSize()`
const helperFuncApplyNewHeight = player => {
// Calculate the new width after window size changed
const newWidth = parseInt(window.getComputedStyle(player).width.split('px')[0]);
let divider = 1.5;
if (newWidth < 600) divider = 1.8;
player.style.height = newWidth / divider + 'px';
}