239 lines
6.7 KiB
Markdown
239 lines
6.7 KiB
Markdown
# Sprint 1 Changes - UX Enhancements
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**Branch**: `feature/sprint1-dragdrop-presets-shortcuts`
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**Date**: 2026-03-08
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**Status**: Ready for Testing
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## 🎯 Overview
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This sprint focuses on making PNGer significantly more intuitive and powerful with three major feature additions plus a critical bug fix.
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---
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## ✅ Bug Fix: Preview File Size Calculation
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### Problem
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- Preview file size was not calculating correctly
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- Size didn't update when adjusting quality slider
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- Format changes weren't reflected in estimated size
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### Solution
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- Fixed base64 size estimation algorithm in `preview.ts`
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- Properly map format to MIME types (png, jpeg, webp)
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- Quality parameter now correctly applied to JPEG and WebP
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- Improved padding calculation for accurate byte estimation
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### Files Changed
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- `frontend/src/lib/preview.ts`
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---
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## 🆕 Feature 1: Drag & Drop Upload
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### What's New
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- **Drag & drop zone** with visual feedback
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- Hover state shows accent color
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- Dragging over triggers highlight animation
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- **Clipboard paste support** (Ctrl+V / Cmd+V)
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- File info displayed after upload (name + size)
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- One-click "Clear File" button
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### User Benefits
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- No more hunting for file picker
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- Instant image upload from screenshots (paste)
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- Modern, expected behavior
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- Faster workflow
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### Technical Implementation
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- `dragover`, `dragleave`, `drop` event handlers
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- Clipboard paste event listener
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- File type validation
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- Visual state management with `isDragging` flag
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### Files Changed
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- `frontend/src/App.svelte` (drag handlers + paste support)
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---
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## 🎯 Feature 2: Smart Presets
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### What's New
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8 built-in presets for common use cases:
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1. **🖼️ Web Thumbnail** - 300x300, WebP, 75% quality, cover
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2. **📱 Social Media** - 1200x630 Open Graph, PNG, 85%, cover
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3. **👤 Profile Picture** - 400x400 square, PNG, 85%, cover
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4. **📧 Email Friendly** - 600px wide, JPEG, 70%, optimized
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5. **⭐ HD Quality** - 1920px wide, PNG, 90%, high-res
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6. **🔍 Retina @2x** - Doubles current dimensions, PNG, 85%
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7. **🔷 Icon Small** - 64x64, PNG, 100%, cover
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8. **🔶 Icon Large** - 256x256, PNG, 100%, cover
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### User Benefits
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- One-click transformations for common tasks
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- No need to remember optimal settings
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- Saves time on repetitive operations
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- Perfect for non-technical users
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### Technical Implementation
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- New `presets.ts` module with preset definitions
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- `applyPreset()` function with special Retina @2x logic
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- 4-column grid layout
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- Hover effects with elevation
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- Icon + name display
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### Files Changed
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- `frontend/src/lib/presets.ts` (new file)
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- `frontend/src/App.svelte` (preset UI + selection logic)
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---
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## ⌨️ Feature 3: Keyboard Shortcuts
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### What's New
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**Shortcuts Available:**
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- `Ctrl+V` / `Cmd+V` - Paste image from clipboard
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- `Enter` - Transform & Download (when not in input)
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- `Ctrl+Enter` / `Cmd+Enter` - Transform & Download (anywhere)
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- `?` - Show/hide shortcuts help
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- `Esc` - Close shortcuts dialog
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**Shortcuts Help Modal:**
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- Clean, centered modal
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- Keyboard key styling (`<kbd>`)
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- Click outside to close
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- Fade-in animation
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### User Benefits
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- Power users can work without mouse
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- Faster workflow for repetitive tasks
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- Discoverable via `?` key
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- Professional touch
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### Technical Implementation
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- Document-level `keydown` event listener
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- Active element detection (skip Enter if input focused)
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- Modal overlay with portal pattern
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- `onMount` setup and cleanup
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### Files Changed
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- `frontend/src/App.svelte` (keyboard handlers + modal)
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---
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## 🎨 UI/UX Improvements
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### Additional Polish
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- **Shortcuts button** in header (⌨️ icon)
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- **Hint text** under download button: "Press Enter to download"
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- **Drop zone improvements**: better empty state messaging
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- **Preset icons**: visual indicators for each preset type
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- **Modal styling**: professional overlay with backdrop blur
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- **Responsive kbd tags**: monospace font with shadow effect
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---
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## 📊 Testing Checklist
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### Bug Fix Validation
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- [ ] Upload image, adjust quality slider - size updates in real-time
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- [ ] Change format PNG → JPEG → WebP - size reflects format
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- [ ] Compare preview size with actual downloaded file size
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### Drag & Drop
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- [ ] Drag image file onto drop zone - uploads successfully
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- [ ] Drag non-image file - shows error
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- [ ] Hover during drag - shows visual feedback
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- [ ] Drop outside zone - no action
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### Clipboard Paste
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- [ ] Take screenshot, press Ctrl+V - pastes image
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- [ ] Copy image from browser, paste - works
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- [ ] Paste non-image - no error
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### Presets
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- [ ] Click "Web Thumbnail" - sets 300x300, WebP, 75%, cover
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- [ ] Click "Social Media" - sets 1200x630, PNG, 85%, cover
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- [ ] Click "Retina @2x" with 500x500 image - doubles to 1000x1000
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- [ ] All 8 presets apply correctly
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### Keyboard Shortcuts
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- [ ] Press `?` - shows shortcuts modal
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- [ ] Press `Esc` in modal - closes modal
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- [ ] Press `Enter` with image loaded - downloads
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- [ ] Press `Enter` while typing in input - types Enter (doesn't download)
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- [ ] Press `Ctrl+Enter` anywhere - downloads
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- [ ] Press `Ctrl+V` - pastes from clipboard
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### Cross-Browser
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- [ ] Chrome/Edge - all features work
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- [ ] Firefox - all features work
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- [ ] Safari - all features work (Cmd key instead of Ctrl)
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---
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## 📝 Files Changed Summary
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### New Files
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1. `frontend/src/lib/presets.ts` - Preset definitions and apply logic
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2. `SPRINT1_CHANGES.md` - This document
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### Modified Files
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1. `frontend/src/lib/preview.ts` - Fixed size calculation bug
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2. `frontend/src/App.svelte` - Major update with all 3 features
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3. `ROADMAP.md` - Marked Phase 1.1 complete, added sprint plan
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---
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## 🚀 Performance Notes
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- **No performance impact**: All features are client-side
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- **Preview debounce**: Still 300ms, works great with presets
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- **Modal render**: Only renders when `showShortcuts = true`
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- **Drag handlers**: Lightweight event listeners
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- **Preset selection**: Instant application (<10ms)
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---
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## 🔧 Development Notes
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### Code Quality
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- TypeScript strict types maintained
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- Svelte reactivity patterns followed
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- Event cleanup in `onMount` return
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- CSS animations for smooth UX
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- Semantic HTML structure
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### Future Enhancements
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- [ ] Multi-file batch processing (use drag & drop foundation)
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- [ ] Custom preset saving (localStorage)
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- [ ] Preset import/export
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- [ ] More keyboard shortcuts (arrow keys for presets?)
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---
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## ✅ Ready for Merge
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This branch is ready to merge to `main` once testing is complete.
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**Merge Command:**
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```bash
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git checkout main
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git merge feature/sprint1-dragdrop-presets-shortcuts
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git push origin main
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```
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**Deployment:**
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No backend changes - just rebuild frontend Docker image.
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---
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## 💬 Next Sprint Suggestions
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After this sprint, consider:
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1. **Sprint 2A**: Batch processing (multi-file upload)
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2. **Sprint 2B**: Additional transformations (rotate, flip, filters)
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3. **Sprint 2C**: Auto-optimize feature
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See `ROADMAP.md` for full feature planning. |