7bacc33679
原实现循环里 n = x / 1024 每次都用原始 x 除一次，未累除，导致大文件 一路跌到 PiB 分支显示错误值。改为 while 循环每次 x /= 1000 累除， 单位改为 B/KB/MB/GB/TB/PB（1000 进制），B 显示整数其余保留 1 位小数。
95 lines
3.1 KiB
JavaScript
95 lines
3.1 KiB
JavaScript
/* zikai 共享前端工具：toast、复制、字节/时间格式化、fetch 封装。
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Basic Auth 同源时浏览器自动带缓存的凭据，无需额外处理；fetch 默认 same-origin。 */
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(function (global) {
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"use strict";
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// 布尔属性：用属性赋值而非 setAttribute（setAttribute("checked","false") 仍会勾选）
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const BOOL_PROPS = new Set([
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"checked", "disabled", "readonly", "selected", "hidden", "multiple", "open",
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"autofocus", "required", "async", "defer", "controls", "autoplay", "loop", "muted",
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]);
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function el(tag, attrs, ...children) {
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const node = document.createElement(tag);
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if (attrs) {
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for (const [k, v] of Object.entries(attrs)) {
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if (k === "class") node.className = v;
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else if (k === "dataset") Object.assign(node.dataset, v);
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else if (k.startsWith("on") && typeof v === "function")
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node.addEventListener(k.slice(2).toLowerCase(), v);
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else if (BOOL_PROPS.has(k)) node[k] = !!v;
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else if (v !== null && v !== undefined && v !== false) node.setAttribute(k, v);
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}
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}
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for (const c of children) {
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if (c == null || c === false) continue;
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node.appendChild(typeof c === "string" ? document.createTextNode(c) : c);
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}
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return node;
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}
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let toastTimer = null;
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function toast(msg, kind) {
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let node = document.querySelector(".toast");
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if (!node) {
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node = el("div", { class: "toast" });
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document.body.appendChild(node);
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}
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node.textContent = msg;
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node.className = "toast show" + (kind ? " " + kind : "");
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clearTimeout(toastTimer);
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toastTimer = setTimeout(() => (node.className = "toast"), 2200);
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}
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async function copyText(text) {
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try {
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await navigator.clipboard.writeText(text);
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return true;
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} catch {
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// 降级：临时 textarea
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const ta = document.createElement("textarea");
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ta.value = text;
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ta.style.position = "fixed";
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ta.style.opacity = "0";
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document.body.appendChild(ta);
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ta.select();
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let ok = false;
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try { ok = document.execCommand("copy"); } catch {}
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document.body.removeChild(ta);
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return ok;
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}
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}
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function fmtBytes(n) {
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let x = Number(n);
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if (n == null || !isFinite(x)) return "-";
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const units = ["B", "KB", "MB", "GB", "TB", "PB"];
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let i = 0;
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while (Math.abs(x) >= 1000 && i < units.length - 1) {
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x /= 1000;
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i++;
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}
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return i === 0 ? `${Math.round(x)} ${units[i]}` : `${x.toFixed(1)} ${units[i]}`;
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}
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function fmtTime(s) {
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if (!s) return "-";
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const d = new Date(s);
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if (isNaN(d.getTime())) return s;
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const p = (n) => String(n).padStart(2, "0");
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return `${d.getFullYear()}-${p(d.getMonth() + 1)}-${p(d.getDate())} ${p(d.getHours())}:${p(d.getMinutes())}`;
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}
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async function api(path, opts) {
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const res = await fetch(path, opts);
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if (res.status === 401) {
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// 触发浏览器 Basic Auth 弹窗（同源 reload 即可带上凭据）
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toast("需要登录");
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throw new Error("UNAUTHORIZED");
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}
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return res;
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}
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global.ZK = { el, toast, copyText, fmtBytes, fmtTime, api };
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})(window);
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