feat(pwa): 瞬间页安装引导与启动快捷方式(车道 H)
- manifest shortcuts:瞬间直达(/moments/ + 复用 192 图标;lang
zh 单份中文)
- 安装 CTA:时间线后灰阶虚线小条+ghost 按钮;beforeinstallprompt
模块级立即绑定(跨软导航存活),三态=可装显示/已装
(display-mode:standalone 或 iOS standalone)永不显/不支持默认
hidden;prompt 后 accepted/appinstalled 清引用;文案组件内
locale 双份
- SW 复核零改动:PRECACHE 已含双轨瞬间、IMMUTABLE 覆盖
/_astro/ 瞬间图片管线、NEVER_CACHE 拦 pv 走 '–' 降级——三处
现成正确;离线实证:断网瞬间页 200+时间线完整+pv 降级;图片
0/0 为数据现状(3 条瞬间均无图),同管线文章页图片离线 1/1
等价实证成立
车道:op-artalk(自验 11/11);收编验收:CTA hidden 态+离线 200+
标题+manifest shortcuts 解析实测(首轮探针 context API 误用致假
FAIL,selector 复核全过)
验证: pnpm astro build exit 0;E2E 33/33;断网瞬间页 playwright
实测 200
Spec: none (PWA 增强:shortcuts+CTA+离线实证,车道级交付)
Co-authored-by: GLM-5.3
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@@ -56,6 +56,14 @@ const iso = (d: Date) => d.toISOString();
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</li>
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))}
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</ol>
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<!-- 安装引导(disclosure 小条):仅浏览器明确可装且未安装时现形,克制不打扰 -->
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<div class="install-cta" id="install-cta" hidden>
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<span>{locale === 'en' ? 'Add to Home Screen — moments work offline' : '装到主屏,离线也能刷瞬间'}</span>
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<button type="button" id="install-btn" class="install-btn">
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{locale === 'en' ? 'Install' : '安装'}
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</button>
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</div>
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</BaseLayout>
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<script>
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@@ -103,9 +111,46 @@ const iso = (d: Date) => d.toISOString();
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document.addEventListener('astro:page-load', () => {
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void bumpPv();
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armAnim();
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refreshInstallCta();
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});
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void bumpPv();
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armAnim();
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// —— PWA 安装引导:beforeinstallprompt 早在页面加载初期触发,
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// 故模块级立即绑定存事件,page-load 只负责刷新 UI 显隐 ——
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let deferredPrompt: Event & { prompt?: () => Promise<void>; userChoice?: Promise<{ outcome: string }> } | null = null;
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document.addEventListener('beforeinstallprompt', (e) => {
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e.preventDefault();
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deferredPrompt = e as typeof deferredPrompt;
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refreshInstallCta();
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});
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document.addEventListener('appinstalled', () => {
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deferredPrompt = null;
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refreshInstallCta();
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});
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const isInstalled = () =>
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matchMedia('(display-mode: standalone)').matches ||
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(navigator as Navigator & { standalone?: boolean }).standalone === true;
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function refreshInstallCta() {
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const cta = document.getElementById('install-cta');
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if (!cta) return;
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cta.hidden = !(deferredPrompt && !isInstalled());
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}
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document.addEventListener('click', (e) => {
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if ((e.target as HTMLElement)?.id !== 'install-btn') return;
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if (!deferredPrompt) return;
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void (async () => {
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try {
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await deferredPrompt?.prompt?.();
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const choice = await deferredPrompt?.userChoice;
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if (choice?.outcome === 'accepted') {
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deferredPrompt = null;
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refreshInstallCta();
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}
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} catch { /* 用户关闭安装框:保留事件,小条仍在 */ }
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})();
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});
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refreshInstallCta();
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</script>
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<style>
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@@ -201,6 +246,30 @@ const iso = (d: Date) => d.toISOString();
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.mom-card { padding: var(--space-2) var(--space-3); }
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.mom-fig { max-width: 100%; }
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}
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.install-cta {
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display: flex;
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flex-wrap: wrap;
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align-items: center;
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gap: var(--space-2);
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margin-top: var(--space-5);
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padding: var(--space-3);
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border: 1px dashed var(--line);
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border-radius: 8px;
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font-size: 13px;
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color: var(--ink-3);
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}
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.install-btn {
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font-family: var(--font-mono);
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font-size: 12px;
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color: var(--ink-2);
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background: var(--bg-soft);
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border: 1px solid var(--line);
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border-radius: 6px;
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padding: 4px 12px;
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cursor: pointer;
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transition: border-color var(--dur) var(--ease);
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}
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.install-btn:hover { border-color: var(--accent); }
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.pv-line {
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font-family: var(--font-mono);
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font-size: 12px;
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