410 lines
15 KiB
JavaScript
410 lines
15 KiB
JavaScript
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let material_id = null;
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function lessonTemplate(material_id,chapter_name,lesson_name) {
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return `
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<li class="lesson-item" data-material-id="${material_id}" data-chapter-name="${chapter_name}" data-lesson-name="${lesson_name}">
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<span class="lesson-text" onclick="editLesson(this)">${lesson_name}
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<button class="icon-btn edit-btn" onclick="editLesson(this)">
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<i class="fas fa-pencil-alt"></i>
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</button>
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</span>
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<div class="delete-btn-container" onclick="deleteLesson(this)">
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<button class="icon-btn delete-btn">
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<i class="fas fa-trash-alt"></i>
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</button>
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</div>
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</li>
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`;
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}
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function show_teacher_data(user_data, user_course_data) {
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// 这里可以根据user_course_data生成课程卡片
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const courseCardsContainer = document.getElementById('course-cards');
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user_course_data.forEach(course => {
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const courseCard = document.createElement('div');
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courseCard.classList.add('course-card');
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courseCard.onclick = function() { openCourseDetails(course.id); };
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courseCard.innerHTML = `
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<img src="${course.cover_image}" alt="课程封面" class="course-image">
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<div class="course-info">
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<h3 class="course-name">${course.name}</h3>
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<p class="course-description">${course.description}</p>
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</div>
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`;
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courseCardsContainer.appendChild(courseCard);
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});
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}
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let isAddingChapter = false;
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function showInputForNewChapter() {
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if (isAddingChapter) return; // 防止重复点击
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isAddingChapter = true; // 标记正在添加章节
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// 找到新增章节按钮并隐藏
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const addButton = document.querySelector('.add-chapter-btn');
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addButton.style.display = 'none';
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// 创建一个输入框
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const input = document.createElement('input');
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input.type = 'text';
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input.placeholder = '请输入章节名称...';
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input.className = 'new-chapter-input';
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input.onblur = () => checkAndAddChapter(input);
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// 将输入框插入到页面
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const chapterList = document.getElementById('chapter-list');
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chapterList.appendChild(input);
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input.focus(); // 聚焦到输入框
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}
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function checkAndAddChapter(input) {
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const chapterName = input.value.trim();
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// 如果章节名称为空，显示提示并不添加
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if (!chapterName) {
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input.remove(); // 删除输入框
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document.querySelector('.add-chapter-btn').style.display = 'block'; // 重新显示新增章节按钮
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isAddingChapter = false;
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return;
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}
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// 如果章节名称合法，添加到章节列表
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const chapterList = document.getElementById('chapter-list');
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const chapterItem = document.createElement('li');
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chapterItem.innerHTML = `
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<li class="lesson-item">
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<strong>${chapterName}</strong> <button class="icon-btn delete-btn" onclick="deleteChapter(this)">
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<i class="fas fa-trash-alt"></i>
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</button>
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</li>
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<ul>
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</ul>
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<button class="add-lesson-btn" onclick="showInputForNewLesson('${chapterName}', this)">新增课时</button>
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`;
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chapterList.appendChild(chapterItem);
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// 恢复新增按钮的显示
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document.querySelector('.add-chapter-btn').style.display = 'block';
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input.remove();
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isAddingChapter = false;
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fetch(`/materials/addchapter/${material_id}`, {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json'
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},
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body: JSON.stringify({chapter_name: chapterName})
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})
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.then(response => response.json())
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.then(data => {
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alert(data.message);
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})
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.catch(error => {
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console.error('Error adding chapter:', error);
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});
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}
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function openCourseDetails(courseId) {
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// 打开课程目录
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const courseDetails = document.getElementById('courseDetails');
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const courseTitle = document.getElementById('course-title');
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courseTitle.textContent = "课程名称: " + courseId; // 假设这里显示课程ID，实际情况应该是课程名称
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courseDetails.classList.add('open');
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// 获取章节数据并渲染
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renderChapters(courseId);
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}
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function deleteChapter(deleteButton) {
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// 删除章节
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const chapterItem = deleteButton.closest('li');
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chapterItem.remove();
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}
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function renderChapters(courseId) {
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const chapterList = document.getElementById('chapter-list');
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chapterList.innerHTML = ""; // 清空章节列表
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material_id = courseId;
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window.material_id = courseId; // 兼容你原来的全局变量
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window.EDIT_COURSE_CURRENT = window.EDIT_COURSE_CURRENT || {};
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EDIT_COURSE_CURRENT.material_id = courseId; // 新的统一来源
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fetch(`/materials/${courseId}`)
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.then(response => response.json())
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.then(data => {
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document.getElementById('course-title').innerText = data.name;
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const detailsContent = document.getElementById('details-content');
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// 填充课程描述
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const description = data.description || '暂无描述';
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detailsContent.innerHTML = `<h3>课程描述：</h3><p>${description}</p>`;
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// 填充章节列表
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const chapterList = document.getElementById('chapter-list');
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chapterList.innerHTML = ''; // 清空之前的章节列表
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data.chapters.forEach(chapter => {
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const chapterItem = document.createElement('li');
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chapterItem.classList.add('chapter-item');
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chapterItem.innerHTML = `<strong class="chapter-header">${chapter.chapter_name}</strong>`;
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const lessonList = document.createElement('ul');
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lessonList.classList.add('lessons-list');
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chapter.lessons.forEach(lesson => {
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lessonList.innerHTML += lessonTemplate(material_id,chapter.chapter_name,lesson.lesson_name);
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});
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chapterItem.appendChild(lessonList);
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const addBtn = document.createElement('button');
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addBtn.className = 'add-lesson-btn';
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addBtn.onclick = () => showInputForNewLesson(chapter.chapter_name, addBtn);
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addBtn.textContent = '新增课时';
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chapterItem.appendChild(addBtn);
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chapterList.appendChild(chapterItem);
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});
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// 使侧边栏滑出
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document.getElementById('courseDetails').classList.add('open');
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})
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.catch(error => {
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const detailsContent = document.getElementById('details-content');
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detailsContent.innerHTML = '<p>加载课程详情失败，请稍后再试。</p>';
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console.error('Error loading course details:', error);
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});
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}
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function showInputForNewLesson(chapterTitle, button) {
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// 防止重复点击
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const addButton = button;
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addButton.style.display = 'none'; // 隐藏按钮
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// 创建一个输入框
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const input = document.createElement('input');
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input.type = 'text';
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input.placeholder = '请输入课时名称...';
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input.className = 'new-lesson-input';
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input.onblur = () => checkAndAddLesson(input, chapterTitle, addButton); // 失去焦点时检查输入
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// 将输入框插入到章节列表中
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const chapterItem = addButton.closest('li'); // 获取到点击按钮的父元素
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chapterItem.appendChild(input);
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input.focus(); // 聚焦到输入框
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}
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function checkAndAddLesson(input, chapterTitle, addButton) {
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const lessonName = input.value.trim();
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// 如果课时名称为空，显示提示并不添加
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if (!lessonName) {
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input.remove(); // 删除输入框
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addButton.style.display = 'block'; // 重新显示新增课时按钮
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return;
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}
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// 如果课时名称合法，添加到课时列表
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const chapterList = document.getElementById('chapter-list');
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const chapterItem = Array.from(chapterList.children).find(item => item.querySelector('strong').textContent === chapterTitle);
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const lessonsList = chapterItem.querySelector('ul');
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const lessonItem = document.createElement('span');
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lessonItem.innerHTML = lessonTemplate(material_id, chapterTitle, lessonName);
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lessonsList.appendChild(lessonItem); // 将新课时添加到章节下
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input.remove(); // 删除输入框
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addButton.style.display = 'block'; // 重新显示新增课时按钮
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fetch(`/materials/addlesson/${material_id}`, {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json'
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},
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body: JSON.stringify({chapter_name: chapterTitle, lesson_name: lessonName})
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})
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}
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function deleteLesson(elemOrEvent) {
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const el = elemOrEvent?.target ? elemOrEvent.target : elemOrEvent;
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const li = el?.closest?.('li.lesson-item');
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if (!li) {
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console.warn('未找到父级 lesson-item');
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return;
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}
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const { materialId, chapterName, lessonName } = li.dataset;
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const material_id = materialId;
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const chapter_name = chapterName;
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const lesson_name = lessonName;
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if (!window.confirm(`确认删除课时「${lesson_name}」吗？`)){
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return;
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}
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const lessonItems = document.querySelectorAll('.lesson-item');
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lessonItems.forEach(item => {
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if (item.dataset.lessonName === lesson_name && item.dataset.chapterName === chapter_name && item.dataset.materialId === material_id) {
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fetch(`/materials/deletelesson/${material_id}`, {
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method: 'DELETE',
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headers: {
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'Content-Type': 'application/json'
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},
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body: JSON.stringify({chapter_name: chapter_name, lesson_name: lesson_name})
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})
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.then(response => response.json())
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.then(data => {
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alert(data.message);
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item.remove(); // 删除对应的课时项
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renderChapters(material_id);
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return;
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})
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.catch(error => {
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console.error('Error deleting lesson:', error);
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});
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}
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});
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}
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function editLesson(elemOrEvent) {
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const el = elemOrEvent?.target ? elemOrEvent.target : elemOrEvent;
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const li = el?.closest?.('li.lesson-item');
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if (!li) {
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console.warn('未找到父级 lesson-item');
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return;
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}
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const { materialId, chapterName, lessonName } = li.dataset;
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const material_id = materialId;
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const chapter_name = chapterName;
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const lesson_name = lessonName;
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const renameMode = document.getElementById('toggle-rename').getAttribute('aria-pressed') === 'true';
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if (renameMode) {
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return;
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}
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// 编辑课时的逻辑
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alert("编辑课时: " + lesson_name);
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window.location.href = `/api/materials/${material_id}/chapters/${chapter_name}/lessons/${lesson_name}`;
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}
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function closeCourseDetails() {
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document.getElementById('courseDetails').classList.remove('open');
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material_id = null;
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}
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// 打开新建课程浮窗
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function openAddCourseModal() {
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document.getElementById('add-course-modal').style.display = 'block';
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}
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// 关闭新建课程浮窗
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function closeAddCourseModal() {
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document.getElementById('add-course-modal').style.display = 'none';
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}
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// 显示删除课程确认弹窗
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function showDeleteCourseConfirmation() {
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if (!material_id) {
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alert('无法删除课程：未找到课程ID');
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return;
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}
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if (confirm('确定要删除这个课程吗？此操作无法撤销！')) {
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deleteCourse(material_id);
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}
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}
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// 删除课程
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function deleteCourse(courseId) {
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fetch(`/materials/${courseId}`, {
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method: 'DELETE',
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headers: {
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'Content-Type': 'application/json'
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}
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})
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.then(response => response.json())
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.then(data => {
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if (data.message) {
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alert(data.message);
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if (data.success) {
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// 关闭侧边栏并刷新页面
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closeCourseDetails();
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location.reload();
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}
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}
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})
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.catch(error => {
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console.error('删除课程时出错:', error);
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alert('删除课程失败，请稍后再试！');
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});
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}
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function onTeacherboardPageLoad(){
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// 提交表单处理
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document.getElementById('add-course-form').addEventListener('submit', function(event) {
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event.preventDefault();
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const courseName = document.getElementById('course-name').value;
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const courseSelection = document.getElementById('course-selection').value; // 获取选择值
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const coverImage = document.getElementById('cover-preview').src;
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const courseDescription = document.getElementById('course-description').value;
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// 构建发送的数据
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const data = {
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material_name: courseName,
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description: courseDescription,
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chapters: [], // 这里可以根据需要添加章节信息，如果有的话
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image_url: coverImage
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};
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// 如果选择了已有课程，可以通过 courseSelection 传递课程ID（根据需要修改）
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if (courseSelection !== 'new') {
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// 如果是修改已有课程，设置相关的章节信息或其他数据
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data.chapters = ["Chapter 1", "Chapter 2"];
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}
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// 发送 POST 请求到 /create_material
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fetch('/create_material', {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json'
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},
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body: JSON.stringify(data) // 将数据转为 JSON 格式
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})
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.then(response => response.json())
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.then(data => {
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console.log("返回消息:", data.message); // 打印返回消息
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alert(data.message); // 显示一个警告框来显示返回的消息
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courseName.value = "";
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closeAddCourseModal(); // 关闭浮窗
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})
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.catch(error => {
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console.error("请求失败:", error); // 如果请求失败，打印错误
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alert("创建课程失败，请稍后再试！");
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});
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});
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document.getElementById("cover-image").addEventListener("click", function() {
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document.getElementById("cover-image-input").click();
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});
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document.getElementById("cover-image-input").addEventListener("change", function(event) {
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const file = event.target.files[0];
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if (file) {
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const formData = new FormData();
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formData.append("file", file);
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// 上传图片到服务器
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fetch('/teacher/upload_image', {
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method: 'POST',
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body: formData
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})
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.then(response => response.json())
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.then(data => {
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if (data.image_url) {
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// 显示上传后的图片预览
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document.getElementById("cover-preview").src = data.image_url;
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document.getElementById("cover-preview").style.display = 'block';
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document.getElementById("cover-image").style.display = 'none'; // 隐藏占位符
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} else {
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alert('图片上传失败');
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}
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})
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.catch(error => {
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alert('上传出错');
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console.error(error);
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});
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}
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});
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}
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