|
| 1 | +window.addEventListener("DOMContentLoaded", event => { |
| 2 | + if (window.localStorage) { |
| 3 | + window.topicsCompleted = getTopicsFromLocalStorage(); |
| 4 | + updateUI(); |
| 5 | + } |
| 6 | +}); |
| 7 | + |
| 8 | +function updateUI() { |
| 9 | + checkForCompletedButtons(); |
| 10 | + checkSideBar(); |
| 11 | +} |
| 12 | + |
| 13 | +function checkForCompletedButtons() { |
| 14 | + [...getButtons()].forEach(button => { |
| 15 | + const topic = button.dataset.topic; |
| 16 | + if (isCompleted(topic)) { |
| 17 | + markButtonAsCompleted(button); |
| 18 | + } else { |
| 19 | + markButtonAsNotCompleted(button); |
| 20 | + } |
| 21 | + }); |
| 22 | +} |
| 23 | + |
| 24 | +function getButtons() { |
| 25 | + return document.querySelectorAll(".completed-button"); |
| 26 | +} |
| 27 | + |
| 28 | +function toggleCompletedTopic(topic) { |
| 29 | + if (isCompleted(topic)) { |
| 30 | + removeCompletedTopic(topic); |
| 31 | + updateUI(); |
| 32 | + } else { |
| 33 | + addCompletedTopic(topic); |
| 34 | + updateUI(); |
| 35 | + } |
| 36 | +} |
| 37 | + |
| 38 | +function isCompleted(topic) { |
| 39 | + return window.topicsCompleted && window.topicsCompleted.includes(topic); |
| 40 | +} |
| 41 | + |
| 42 | +function markButtonAsCompleted(button) { |
| 43 | + button.classList.add("completed"); |
| 44 | + button.innerText = "Completed!"; |
| 45 | +} |
| 46 | + |
| 47 | +function markButtonAsNotCompleted(button) { |
| 48 | + button.classList.remove("completed"); |
| 49 | + button.innerText = "Mark as completed"; |
| 50 | +} |
| 51 | + |
| 52 | +function getTopicsFromLocalStorage() { |
| 53 | + return JSON.parse(window.localStorage.getItem("topicsCompleted")); |
| 54 | +} |
| 55 | + |
| 56 | +function addCompletedTopic(topic) { |
| 57 | + let topics = getTopicsFromLocalStorage(); |
| 58 | + if (!topics) { |
| 59 | + topics = []; |
| 60 | + } |
| 61 | + topics.push(topic); |
| 62 | + save(topics); |
| 63 | +} |
| 64 | + |
| 65 | +function save(topics) { |
| 66 | + window.topicsCompleted = topics; |
| 67 | + window.localStorage.setItem("topicsCompleted", JSON.stringify(topics)); |
| 68 | +} |
| 69 | + |
| 70 | +function removeCompletedTopic(topic) { |
| 71 | + const topics = getTopicsFromLocalStorage(); |
| 72 | + save(topics.filter(t => t !== topic)); |
| 73 | +} |
| 74 | + |
| 75 | +function getSidebarItems() { |
| 76 | + return document.querySelectorAll(".topics li"); |
| 77 | +} |
| 78 | + |
| 79 | +function checkSideBar() { |
| 80 | + [...getSidebarItems()].forEach(item => { |
| 81 | + const topic = item.dataset.topic; |
| 82 | + if (isCompleted(topic)) { |
| 83 | + item.classList.add("completed"); |
| 84 | + } else { |
| 85 | + item.classList.remove("completed"); |
| 86 | + } |
| 87 | + }); |
| 88 | +} |
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