WIP PWA for Grain
docs: add profile skeleton implementation plan
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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docs/plans/2025-12-29-profile-skeleton-implementation.md
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docs/plans/2025-12-29-profile-skeleton-implementation.md
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# Profile Header Skeleton Implementation Plan
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> **For Claude:** REQUIRED SUB-SKILL: Use superpowers:executing-plans to implement this plan task-by-task.
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**Goal:** Add a skeleton loader for the profile header to eliminate layout shift on fresh profile loads.
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**Architecture:** Create a new Lit component that mirrors the exact layout dimensions of `grain-profile-header`, using animated placeholder shapes. Swap the spinner for this skeleton during loading state.
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**Tech Stack:** Lit 3.x, CSS custom properties, CSS animations
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---
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### Task 1: Create the Skeleton Component
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**Files:**
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- Create: `src/components/molecules/grain-profile-header-skeleton.js`
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**Step 1: Create the skeleton component file**
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Create `src/components/molecules/grain-profile-header-skeleton.js`:
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```javascript
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import { LitElement, html, css } from 'lit';
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export class GrainProfileHeaderSkeleton extends LitElement {
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static styles = css`
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:host {
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display: block;
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padding: var(--space-md) var(--space-sm);
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}
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@media (min-width: 600px) {
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:host {
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padding-left: 0;
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padding-right: 0;
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}
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}
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.top-row {
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display: flex;
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align-items: flex-start;
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gap: var(--space-md);
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margin-bottom: var(--space-sm);
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}
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.right-column {
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flex: 1;
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min-width: 0;
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padding-top: var(--space-xs);
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}
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.placeholder {
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background: var(--color-bg-elevated);
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border-radius: 4px;
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animation: pulse 1.5s ease-in-out infinite;
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}
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.avatar {
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width: var(--avatar-size-lg, 80px);
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height: var(--avatar-size-lg, 80px);
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border-radius: 50%;
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flex-shrink: 0;
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}
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.handle {
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width: 120px;
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height: 20px;
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margin-bottom: var(--space-xs);
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}
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.name {
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width: 80px;
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height: 14px;
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margin-bottom: var(--space-xs);
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}
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.stats {
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display: flex;
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gap: var(--space-sm);
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margin-bottom: var(--space-xs);
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}
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.stat {
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width: 70px;
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height: 14px;
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}
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.bio-line {
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height: 14px;
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margin-top: var(--space-xs);
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}
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.bio-line:first-of-type {
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width: 100%;
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}
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.bio-line:last-of-type {
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width: 60%;
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}
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.button {
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width: 100%;
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height: 40px;
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border-radius: 8px;
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margin-top: var(--space-sm);
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}
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@keyframes pulse {
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0%, 100% { opacity: 0.4; }
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50% { opacity: 1; }
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}
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`;
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render() {
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return html`
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<div class="top-row">
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<div class="placeholder avatar"></div>
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<div class="right-column">
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<div class="placeholder handle"></div>
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<div class="placeholder name"></div>
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<div class="stats">
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<div class="placeholder stat"></div>
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<div class="placeholder stat"></div>
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<div class="placeholder stat"></div>
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</div>
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<div class="placeholder bio-line"></div>
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<div class="placeholder bio-line"></div>
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</div>
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</div>
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<div class="placeholder button"></div>
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`;
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}
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}
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customElements.define('grain-profile-header-skeleton', GrainProfileHeaderSkeleton);
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```
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**Step 2: Commit the new component**
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```bash
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git add src/components/molecules/grain-profile-header-skeleton.js
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git commit -m "feat: add profile header skeleton component"
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```
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---
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### Task 2: Integrate Skeleton into Profile Page
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**Files:**
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- Modify: `src/components/pages/grain-profile.js:4` (add import)
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- Modify: `src/components/pages/grain-profile.js:171` (swap spinner for skeleton)
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**Step 1: Add import for skeleton component**
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In `src/components/pages/grain-profile.js`, add import after line 8 (after `grain-avatar-crop.js`):
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```javascript
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import '../molecules/grain-profile-header-skeleton.js';
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```
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**Step 2: Replace spinner with skeleton**
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In `src/components/pages/grain-profile.js`, change line 171 from:
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```javascript
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${this._loading ? html`<grain-spinner></grain-spinner>` : ''}
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```
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To:
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```javascript
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${this._loading ? html`<grain-profile-header-skeleton></grain-profile-header-skeleton>` : ''}
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```
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**Step 3: Commit the integration**
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```bash
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git add src/components/pages/grain-profile.js
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git commit -m "feat: use skeleton loader for profile page"
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```
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---
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### Task 3: Manual Verification
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**Step 1: Test fresh profile load**
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1. Run the dev server: `npm run dev`
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2. Clear browser cache or open incognito
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3. Navigate to a profile page (e.g., `/profile/somehandle`)
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4. Observe: skeleton should appear with pulsing animation
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5. Verify: no layout shift when profile data loads
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**Step 2: Test cached navigation**
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1. Navigate away from profile
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2. Navigate back to same profile
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3. Verify: if cached, profile loads instantly (no skeleton)
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4. Verify: if not cached, skeleton appears
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**Step 3: Verify responsive layout**
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1. Test on mobile viewport (< 600px)
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2. Test on desktop viewport (> 600px)
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3. Verify: skeleton matches header padding in both views