116 lines
4.1 KiB
JavaScript
116 lines
4.1 KiB
JavaScript
// ======= 工具：创建编辑按钮（含铅笔 SVG） =======
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function createEditButton(onClick) {
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const btn = document.createElement('button');
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btn.type = 'button';
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btn.className = 'edit-btn';
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btn.setAttribute('aria-label', '编辑标题');
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btn.innerHTML = `
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<svg viewBox="0 0 24 24" aria-hidden="true">
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<i class="fas fa-pencil-alt"></i>
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</svg>
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`;
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btn.addEventListener('click', (e) => {
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e.stopPropagation();
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onClick && onClick();
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});
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return btn;
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}
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// ======= 模态框：打开标题编辑器 =======
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function openTitleEditor({ title = '修改标题', initialValue = '', onSubmit }) {
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const backdrop = document.createElement('div');
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backdrop.className = 'title_change_modal-backdrop';
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const title_change_modal = document.createElement('div');
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title_change_modal.className = 'title_change_modal';
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title_change_modal.setAttribute('role', 'dialog');
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title_change_modal.setAttribute('aria-title_change_modal', 'true');
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title_change_modal.innerHTML = `
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<h3 id="dialog-title">${title}</h3>
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<div class="field">
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<label for="title-input" class="sr-only">标题</label>
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<input id="title-input" type="text" placeholder="请输入标题" value="${escapeHtmlAttr(initialValue)}" />
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<div class="error" id="title-error"></div>
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</div>
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<div class="actions">
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<button type="button" class="btn" id="cancel-btn">取消</button>
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<button type="button" class="btn primary" id="ok-btn">确定</button>
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</div>
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`;
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backdrop.appendChild(title_change_modal);
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document.body.appendChild(backdrop);
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const input = title_change_modal.querySelector('#title-input');
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const okBtn = title_change_modal.querySelector('#ok-btn');
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const cancelBtn = title_change_modal.querySelector('#cancel-btn');
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const errBox = title_change_modal.querySelector('#title-error');
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const prevFocus = document.activeElement;
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const close = () => {
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document.body.removeChild(backdrop);
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if (prevFocus && prevFocus.focus) prevFocus.focus();
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};
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const submit = () => {
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const raw = input.value;
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const result = onSubmit ? onSubmit(raw) : { ok: true };
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if (result && result.ok) {
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close();
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} else if (result && result.message) {
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errBox.textContent = result.message;
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input.setAttribute('aria-invalid', 'true');
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input.focus();
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}
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};
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okBtn.addEventListener('click', submit);
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cancelBtn.addEventListener('click', close);
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backdrop.addEventListener('click', (e) => {
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if (e.target === backdrop) close(); // 点击遮罩关闭
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});
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title_change_modal.addEventListener('keydown', (e) => {
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if (e.key === 'Escape') close();
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if (e.key === 'Enter') submit();
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});
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// 初始聚焦
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setTimeout(() => input.focus(), 0);
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}
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// ======= 验证与规范化 =======
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function validateTitle(raw) {
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if (typeof raw !== 'string') return { ok: false, message: '标题格式不正确' };
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// 1) 去掉 Markdown 井号前缀（若用户手动输入了 ### ）
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let t = raw.replace(/^#+\s*/, '');
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// 2) 替换换行为单空格（标题单行）
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t = t.replace(/\r?\n+/g, ' ');
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// 3) 去首尾空白 & 折叠多空格
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t = t.trim().replace(/\s{2,}/g, ' ');
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// 4) 基础规则
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if (t.length === 0) return { ok: false, message: '标题不能为空' };
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if (t.length > 80) return { ok: false, message: '标题不能超过 80 个字符' };
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// 5) 可选：禁止只包含标点
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if (!/[0-9A-Za-z\u4e00-\u9fa5]/.test(t)) {
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return { ok: false, message: '标题需包含字母/数字/中文' };
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}
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return { ok: true, value: t };
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}
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// 显示时的规范化（比如初始渲染）
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function normalizeTitle(s) {
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if (!s) return '';
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return s.replace(/^#+\s*/, '').replace(/\r?\n+/g, ' ').trim().replace(/\s{2,}/g, ' ');
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}
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// 简单转义，避免把初始值插进 input 时破坏属性
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function escapeHtmlAttr(s) {
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return String(s).replace(/&/g,'&').replace(/"/g,'"').replace(/</g,'<').replace(/>/g,'>');
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}
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