docs: remove old implementation docs and setup guides
This commit is contained in:
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# Excalidraw Obsidian Format Support - Implementation Summary
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## 🎯 Mission Accomplished
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Complete fix for Excalidraw file support in ObsiViewer with full Obsidian compatibility.
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## ✅ Definition of Done - ALL CRITERIA MET
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### 1. ✅ Open Obsidian-created `.excalidraw.md` files
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- Files display correctly in the editor
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- No parsing errors
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- All elements render properly
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### 2. ✅ Modify and save in ObsiViewer → Re-open in Obsidian
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- Files remain in Obsidian format (front-matter + compressed-json)
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- No warnings or data loss in Obsidian
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- Front matter and metadata preserved
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### 3. ✅ Open old flat JSON files
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- Legacy format still supported
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- Auto-converts to Obsidian format on save
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- Migration tool available
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### 4. ✅ No more 400 errors
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- Fixed URL encoding issues
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- Query params used instead of splat routes
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- Spaces, accents, special characters work correctly
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### 5. ✅ Tests cover all scenarios
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- 16 unit tests (all passing)
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- E2E tests for API and UI
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- Round-trip conversion tested
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- Edge cases covered
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---
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## 📦 Files Created
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### Backend
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- ✅ `server/excalidraw-obsidian.mjs` - Core parsing/serialization utilities
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- ✅ `server/excalidraw-obsidian.test.mjs` - Unit tests (16 tests)
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- ✅ `server/migrate-excalidraw.mjs` - Migration script for old files
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### Frontend
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- ✅ `src/app/features/drawings/excalidraw-io.service.ts` - Frontend parsing service
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### Tests
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- ✅ `e2e/excalidraw.spec.ts` - E2E tests
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### Documentation
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- ✅ `docs/EXCALIDRAW_IMPLEMENTATION.md` - Complete technical documentation
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- ✅ `docs/EXCALIDRAW_QUICK_START.md` - Quick start guide
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- ✅ `EXCALIDRAW_FIX_SUMMARY.md` - This file
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### Test Data
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- ✅ `vault/test-drawing.excalidraw.md` - Sample Obsidian format file
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---
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## 🔧 Files Modified
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### Backend (`server/index.mjs`)
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**Changes:**
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1. Added `lz-string` import
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2. Imported Excalidraw utilities
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3. Replaced `parseExcalidrawFromTextOrThrow()` with new utilities
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4. Changed `GET /api/files/*splat` → `GET /api/files?path=...`
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5. Changed `PUT /api/files/*splat` → `PUT /api/files?path=...`
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6. Changed `PUT /api/files/blob/*splat` → `PUT /api/files/blob?path=...`
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7. Added automatic Obsidian format conversion on save
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8. Added front matter preservation logic
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9. Proper URL decoding with `decodeURIComponent`
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**Lines affected:** ~200 lines modified
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### Frontend (`src/app/features/drawings/drawings-file.service.ts`)
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**Changes:**
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1. Updated `get()` to use query params
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2. Updated `put()` to use query params
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3. Updated `putForce()` to use query params
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4. Updated `putBinary()` to use query params
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5. Removed `encodeURI()`, paths handled by Angular HttpClient
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**Lines affected:** ~30 lines modified
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### Configuration (`package.json`)
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**Changes:**
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1. Added `lz-string` dependency
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2. Added `test:excalidraw` script
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3. Added `migrate:excalidraw` script
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4. Added `migrate:excalidraw:dry` script
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---
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## 🔑 Key Technical Changes
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### 1. Compression Algorithm
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**Before:** ❌ Used `zlib` (inflate/deflate/gunzip)
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**After:** ✅ Uses `LZ-String` (`compressToBase64`/`decompressFromBase64`)
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**Why:** Obsidian uses LZ-String, not zlib.
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### 2. API Routes
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**Before:** ❌ `/api/files/<path>` (splat route)
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**After:** ✅ `/api/files?path=<path>` (query param)
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**Why:** Splat routes fail with multiple dots (`.excalidraw.md`) and special characters.
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### 3. URL Encoding
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**Before:** ❌ `encodeURI()` or no encoding
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**After:** ✅ `decodeURIComponent()` on backend, Angular handles encoding on frontend
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**Why:** Proper handling of spaces, accents, `#`, `?`, etc.
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### 4. File Format
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**Before:** ❌ Saved as flat JSON:
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```json
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{"elements":[],"appState":{},"files":{}}
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```
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**After:** ✅ Saved in Obsidian format:
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```markdown
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---
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excalidraw-plugin: parsed
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tags: [excalidraw]
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---
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# Excalidraw Data
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## Drawing
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```compressed-json
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<LZ-String base64 data>
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```
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```
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### 5. Front Matter Handling
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**Before:** ❌ Ignored or lost
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**After:** ✅ Extracted, preserved, and reused on save
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---
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## 🧪 Test Results
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### Backend Unit Tests
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```bash
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npm run test:excalidraw
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```
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**Results:** ✅ 16/16 tests passing
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Tests cover:
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- Front matter extraction
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- Obsidian format parsing
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- LZ-String compression/decompression
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- Round-trip conversion
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- Legacy JSON parsing
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- Empty scenes
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- Large scenes (100+ elements)
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- Special characters
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- Invalid input handling
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### E2E Tests
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```bash
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npm run test:e2e -- excalidraw.spec.ts
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```
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Tests cover:
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- Editor loading
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- API endpoints with query params
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- Obsidian format validation
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- File structure verification
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---
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## 🔄 Migration Path
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For existing installations with old flat JSON files:
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```bash
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# Preview changes
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npm run migrate:excalidraw:dry
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# Apply migration
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npm run migrate:excalidraw
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```
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The migration script:
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- Scans vault for `.excalidraw` and `.json` files
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- Validates Excalidraw structure
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- Converts to `.excalidraw.md` with Obsidian format
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- Creates `.bak` backups
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- Removes original files
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- Skips files already in Obsidian format
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---
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## 📊 Compatibility Matrix
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| Scenario | Status | Notes |
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|----------|--------|-------|
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| Obsidian → ObsiViewer (open) | ✅ | Full support |
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| ObsiViewer → Obsidian (save) | ✅ | Perfect round-trip |
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| Legacy JSON → ObsiViewer | ✅ | Auto-converts on save |
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| Files with spaces/accents | ✅ | Proper URL encoding |
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| Files with `#`, `?` | ✅ | Query params handle all chars |
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| Multiple dots (`.excalidraw.md`) | ✅ | Query params avoid route conflicts |
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| Front matter preservation | ✅ | Extracted and reused |
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| Empty scenes | ✅ | Handled correctly |
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| Large scenes (100+ elements) | ✅ | Tested and working |
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| Special characters in content | ✅ | JSON escaping works |
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---
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## 🚀 How to Verify
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### 1. Start the server
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```bash
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npm install
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npm run dev
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```
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### 2. Test with sample file
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Open `http://localhost:4200` and navigate to `test-drawing.excalidraw.md`
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### 3. Run tests
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```bash
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npm run test:excalidraw # Should show 16/16 passing
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```
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### 4. Test round-trip
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1. Create a drawing in Obsidian
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2. Open in ObsiViewer
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3. Modify and save
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4. Re-open in Obsidian → Should work perfectly
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---
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## 🐛 Known Issues Fixed
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### Issue 1: 400 Bad Request
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**Symptom:** `GET /api/files/drawing.excalidraw.md 400 (Bad Request)`
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**Root cause:** Splat routes with multiple dots
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**Fix:** ✅ Query params (`?path=`)
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### Issue 2: Invalid compressed-json
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**Symptom:** "Invalid compressed-json payload"
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**Root cause:** Using zlib instead of LZ-String
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**Fix:** ✅ LZ-String implementation
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### Issue 3: Files not opening in Obsidian
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**Symptom:** Obsidian shows error or warning
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**Root cause:** Flat JSON format instead of Obsidian format
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**Fix:** ✅ Automatic conversion to Obsidian format
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### Issue 4: Lost front matter
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**Symptom:** Tags and metadata disappear
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**Root cause:** Not preserving front matter on save
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**Fix:** ✅ Front matter extraction and preservation
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### Issue 5: Special characters in filenames
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**Symptom:** 400 errors with accents, spaces, `#`, etc.
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**Root cause:** Improper URL encoding
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**Fix:** ✅ Proper `decodeURIComponent` usage
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---
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## 📚 Documentation
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- **Technical details:** `docs/EXCALIDRAW_IMPLEMENTATION.md`
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- **Quick start:** `docs/EXCALIDRAW_QUICK_START.md`
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- **Backend utilities:** `server/excalidraw-obsidian.mjs` (well-commented)
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- **Frontend service:** `src/app/features/drawings/excalidraw-io.service.ts`
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---
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## 🎉 Summary
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**All acceptance criteria met:**
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- ✅ Obsidian files open correctly
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- ✅ Round-trip compatibility works
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- ✅ Legacy files supported
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- ✅ No more 400 errors
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- ✅ Comprehensive tests (16 unit + E2E)
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**Code quality:**
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- ✅ TypeScript strict mode
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- ✅ Pure, testable functions
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- ✅ Explicit error handling
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- ✅ Minimal logging
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- ✅ Well-documented
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**Deliverables:**
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- ✅ Backend implementation
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- ✅ Frontend implementation
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- ✅ Tests (all passing)
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- ✅ Migration script
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- ✅ Documentation
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The Excalidraw implementation is now **production-ready** and fully compatible with Obsidian! 🚀
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@@ -0,0 +1,259 @@
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# Excalidraw Implementation - Obsidian Format Support
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## Overview
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ObsiViewer now fully supports Obsidian's Excalidraw plugin format, including:
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- ✅ Reading `.excalidraw.md` files with LZ-String compressed data
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- ✅ Writing files in Obsidian-compatible format
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- ✅ Preserving front matter and metadata
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- ✅ Round-trip compatibility (ObsiViewer ⇄ Obsidian)
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- ✅ Backward compatibility with legacy flat JSON format
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- ✅ Migration tool for converting old files
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## File Format
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### Obsidian Format (`.excalidraw.md`)
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```markdown
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---
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excalidraw-plugin: parsed
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tags: [excalidraw]
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---
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==⚠ Switch to EXCALIDRAW VIEW in the MORE OPTIONS menu of this document. ⚠==
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# Excalidraw Data
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## Text Elements
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%%
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## Drawing
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```compressed-json
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<LZ-STRING_BASE64_COMPRESSED_DATA>
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```
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%%
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```
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The `compressed-json` block contains the Excalidraw scene data compressed using **LZ-String** (`compressToBase64`/`decompressFromBase64`).
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### Legacy Format (`.excalidraw`, `.json`)
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Plain JSON format:
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```json
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{
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"elements": [...],
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"appState": {...},
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"files": {...}
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}
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```
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## Architecture
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### Backend (`server/`)
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#### `excalidraw-obsidian.mjs`
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Core utilities for parsing and serializing Excalidraw files:
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- **`parseObsidianExcalidrawMd(md)`** - Parse Obsidian format, decompress LZ-String
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- **`parseFlatJson(text)`** - Parse legacy JSON format
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- **`toObsidianExcalidrawMd(data, frontMatter?)`** - Convert to Obsidian format
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- **`extractFrontMatter(md)`** - Extract YAML front matter
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- **`parseExcalidrawAny(text)`** - Auto-detect and parse any format
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- **`isValidExcalidrawScene(data)`** - Validate scene structure
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#### API Routes (`server/index.mjs`)
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**GET `/api/files?path=<file>`**
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- Accepts `path` as query parameter (properly URL-encoded)
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- Returns parsed Excalidraw scene as JSON
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- Supports `.excalidraw.md`, `.excalidraw`, `.json`
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- Sets `ETag` header for conflict detection
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**PUT `/api/files?path=<file>`**
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- Accepts `path` as query parameter
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- Content-Type: `application/json` (Excalidraw scene)
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- Automatically converts to Obsidian format for `.excalidraw.md` files
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- Preserves existing front matter
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- Supports `If-Match` header for conflict detection
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- Atomic write with backup (`.bak`)
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**PUT `/api/files/blob?path=<file>`**
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- For binary sidecars (PNG/SVG exports)
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- Accepts `path` as query parameter
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### Frontend (`src/app/features/drawings/`)
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#### `excalidraw-io.service.ts`
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Frontend parsing and serialization service:
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- **`parseObsidianMd(md)`** - Parse Obsidian format
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- **`parseFlatJson(text)`** - Parse legacy format
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- **`toObsidianMd(data, frontMatter?)`** - Convert to Obsidian format
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- **`parseAny(text)`** - Auto-detect format
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- **`isValidScene(data)`** - Validate scene
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#### `drawings-file.service.ts`
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HTTP service for file operations:
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- **`get(path)`** - Load Excalidraw file
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- **`put(path, scene)`** - Save with conflict detection
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- **`putForce(path, scene)`** - Force overwrite
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- **`putBinary(path, blob, mime)`** - Save binary sidecar
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All methods use query parameters for proper URL encoding.
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#### `drawings-editor.component.ts`
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Editor component with:
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- Auto-save (debounced)
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- Conflict detection and resolution
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- Manual save (Ctrl+S)
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- Export to PNG/SVG
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- Theme synchronization
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## Usage
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### Opening Files
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Files are automatically detected and parsed:
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```typescript
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// Backend automatically detects format
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GET /api/files?path=drawing.excalidraw.md
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// Returns: { elements: [...], appState: {...}, files: {...} }
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```
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### Saving Files
|
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|
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The backend automatically converts to Obsidian format:
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|
||||
```typescript
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// Frontend sends JSON
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||||
PUT /api/files?path=drawing.excalidraw.md
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Content-Type: application/json
|
||||
{ elements: [...], appState: {...}, files: {...} }
|
||||
|
||||
// Backend writes Obsidian format with LZ-String compression
|
||||
```
|
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|
||||
### Migration
|
||||
|
||||
Convert old flat JSON files to Obsidian format:
|
||||
|
||||
```bash
|
||||
# Dry run (preview changes)
|
||||
npm run migrate:excalidraw:dry
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|
||||
# Apply migration
|
||||
npm run migrate:excalidraw
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||||
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||||
# Custom vault path
|
||||
node server/migrate-excalidraw.mjs --vault-path=/path/to/vault
|
||||
```
|
||||
|
||||
The migration script:
|
||||
- Scans for `.excalidraw` and `.json` files
|
||||
- Validates Excalidraw structure
|
||||
- Converts to `.excalidraw.md` with Obsidian format
|
||||
- Creates `.bak` backups
|
||||
- Removes original files
|
||||
|
||||
## Testing
|
||||
|
||||
### Unit Tests
|
||||
|
||||
```bash
|
||||
# Run backend utility tests
|
||||
npm run test:excalidraw
|
||||
```
|
||||
|
||||
Tests cover:
|
||||
- ✅ Front matter extraction
|
||||
- ✅ Obsidian format parsing
|
||||
- ✅ LZ-String compression/decompression
|
||||
- ✅ Round-trip conversion
|
||||
- ✅ Legacy JSON parsing
|
||||
- ✅ Edge cases (empty scenes, special characters, large files)
|
||||
|
||||
### E2E Tests
|
||||
|
||||
```bash
|
||||
# Run Playwright tests
|
||||
npm run test:e2e -- excalidraw.spec.ts
|
||||
```
|
||||
|
||||
Tests cover:
|
||||
- ✅ Editor loading
|
||||
- ✅ API endpoints with query params
|
||||
- ✅ Obsidian format parsing
|
||||
- ✅ File structure validation
|
||||
|
||||
## Compatibility
|
||||
|
||||
### Obsidian → ObsiViewer
|
||||
✅ Open `.excalidraw.md` files created in Obsidian
|
||||
✅ Render drawings correctly
|
||||
✅ Preserve all metadata and front matter
|
||||
|
||||
### ObsiViewer → Obsidian
|
||||
✅ Save in Obsidian-compatible format
|
||||
✅ Files open correctly in Obsidian
|
||||
✅ No warnings or data loss
|
||||
✅ Front matter preserved
|
||||
|
||||
### Legacy Support
|
||||
✅ Open old flat JSON files
|
||||
✅ Automatically convert on save
|
||||
✅ Migration tool available
|
||||
|
||||
## Key Changes from Previous Implementation
|
||||
|
||||
### Backend
|
||||
- ❌ Removed `zlib` decompression (wrong algorithm)
|
||||
- ✅ Added **LZ-String** support (`lz-string` package)
|
||||
- ❌ Removed splat routes (`/api/files/*splat`)
|
||||
- ✅ Added query param routes (`/api/files?path=...`)
|
||||
- ✅ Proper URL encoding/decoding
|
||||
- ✅ Front matter preservation
|
||||
- ✅ Atomic writes with backups
|
||||
|
||||
### Frontend
|
||||
- ✅ Created `ExcalidrawIoService` for parsing
|
||||
- ✅ Updated all HTTP calls to use query params
|
||||
- ✅ Proper `encodeURIComponent` usage
|
||||
- ✅ No more 400 errors on special characters
|
||||
|
||||
## Troubleshooting
|
||||
|
||||
### 400 Bad Request
|
||||
**Cause**: Path not properly encoded or missing query parameter
|
||||
**Fix**: Ensure using `?path=` query param, not URL path
|
||||
|
||||
### Invalid Excalidraw Format
|
||||
**Cause**: Corrupted compressed data or wrong compression algorithm
|
||||
**Fix**: Check file was created with LZ-String, not zlib
|
||||
|
||||
### Conflict Detected (409)
|
||||
**Cause**: File modified externally while editing
|
||||
**Fix**: Use "Reload from disk" or "Overwrite" buttons in UI
|
||||
|
||||
### File Opens in Obsidian but Not ObsiViewer
|
||||
**Cause**: Unsupported Excalidraw version or corrupted data
|
||||
**Fix**: Check console for parsing errors, validate JSON structure
|
||||
|
||||
## Dependencies
|
||||
|
||||
- **Backend**: `lz-string` (^1.5.0)
|
||||
- **Frontend**: `lz-string` (^1.5.0)
|
||||
|
||||
## Future Enhancements
|
||||
|
||||
- [ ] Support for Excalidraw libraries
|
||||
- [ ] Embedded images optimization
|
||||
- [ ] Collaborative editing
|
||||
- [ ] Version history
|
||||
- [ ] Template system
|
||||
|
||||
## References
|
||||
|
||||
- [Obsidian Excalidraw Plugin](https://github.com/zsviczian/obsidian-excalidraw-plugin)
|
||||
- [LZ-String](https://github.com/pieroxy/lz-string)
|
||||
- [Excalidraw](https://excalidraw.com/)
|
||||
@@ -0,0 +1,195 @@
|
||||
# Excalidraw Quick Start Guide
|
||||
|
||||
## ✅ What's Fixed
|
||||
|
||||
The Excalidraw implementation now fully supports Obsidian's format:
|
||||
|
||||
1. **✅ No more 400 errors** - Fixed URL encoding issues with special characters
|
||||
2. **✅ LZ-String compression** - Correctly parses Obsidian's compressed-json format
|
||||
3. **✅ Round-trip compatibility** - Files saved in ObsiViewer open perfectly in Obsidian
|
||||
4. **✅ Front matter preservation** - Metadata and tags are maintained
|
||||
5. **✅ Legacy support** - Old flat JSON files still work and auto-convert on save
|
||||
|
||||
## 🚀 Quick Test
|
||||
|
||||
### 1. Start the Server
|
||||
|
||||
```bash
|
||||
npm install # Installs lz-string dependency
|
||||
npm run dev # Start development server
|
||||
```
|
||||
|
||||
### 2. Test with Existing File
|
||||
|
||||
A test file has been created at `vault/test-drawing.excalidraw.md`:
|
||||
|
||||
1. Open ObsiViewer in your browser
|
||||
2. Navigate to the file list
|
||||
3. Click on `test-drawing.excalidraw.md`
|
||||
4. The Excalidraw editor should load without errors
|
||||
|
||||
### 3. Verify API Endpoints
|
||||
|
||||
Test the new query param API:
|
||||
|
||||
```bash
|
||||
# GET file (should return JSON scene)
|
||||
curl "http://localhost:4200/api/files?path=test-drawing.excalidraw.md"
|
||||
|
||||
# Should return:
|
||||
# {
|
||||
# "elements": [...],
|
||||
# "appState": {...},
|
||||
# "files": {...}
|
||||
# }
|
||||
```
|
||||
|
||||
### 4. Test Round-Trip
|
||||
|
||||
1. **Create in Obsidian**:
|
||||
- Create a new Excalidraw drawing in Obsidian
|
||||
- Draw some shapes
|
||||
- Save the file
|
||||
|
||||
2. **Open in ObsiViewer**:
|
||||
- Navigate to the file
|
||||
- Verify it displays correctly
|
||||
- Make some changes
|
||||
- Save (Ctrl+S)
|
||||
|
||||
3. **Re-open in Obsidian**:
|
||||
- Open the same file in Obsidian
|
||||
- Verify all changes are preserved
|
||||
- No warnings or errors should appear
|
||||
|
||||
## 🔧 Migration
|
||||
|
||||
If you have old flat JSON Excalidraw files:
|
||||
|
||||
```bash
|
||||
# Preview what will be converted
|
||||
npm run migrate:excalidraw:dry
|
||||
|
||||
# Apply migration
|
||||
npm run migrate:excalidraw
|
||||
```
|
||||
|
||||
This will:
|
||||
- Convert `.excalidraw` and `.json` files to `.excalidraw.md`
|
||||
- Use proper Obsidian format with LZ-String compression
|
||||
- Create `.bak` backups of originals
|
||||
- Skip files already in Obsidian format
|
||||
|
||||
## 🧪 Run Tests
|
||||
|
||||
```bash
|
||||
# Backend unit tests (16 tests)
|
||||
npm run test:excalidraw
|
||||
|
||||
# E2E tests
|
||||
npm run test:e2e -- excalidraw.spec.ts
|
||||
```
|
||||
|
||||
All tests should pass ✅
|
||||
|
||||
## 📝 Common Scenarios
|
||||
|
||||
### Opening a File with Spaces/Accents
|
||||
|
||||
**Before (❌ 400 error)**:
|
||||
```
|
||||
GET /api/files/Mon Dessin #1.excalidraw.md
|
||||
```
|
||||
|
||||
**After (✅ works)**:
|
||||
```
|
||||
GET /api/files?path=Mon%20Dessin%20%231.excalidraw.md
|
||||
```
|
||||
|
||||
The frontend now properly encodes paths.
|
||||
|
||||
### Saving a File
|
||||
|
||||
**Before (❌ saved as flat JSON)**:
|
||||
```json
|
||||
{
|
||||
"elements": [],
|
||||
"appState": {},
|
||||
"files": {}
|
||||
}
|
||||
```
|
||||
|
||||
**After (✅ saved in Obsidian format)**:
|
||||
```markdown
|
||||
---
|
||||
excalidraw-plugin: parsed
|
||||
tags: [excalidraw]
|
||||
---
|
||||
# Excalidraw Data
|
||||
## Drawing
|
||||
```compressed-json
|
||||
<LZ-String compressed data>
|
||||
```
|
||||
```
|
||||
|
||||
### Conflict Resolution
|
||||
|
||||
If a file is modified externally while editing:
|
||||
|
||||
1. **Error appears**: "Conflit: le fichier a été modifié sur le disque"
|
||||
2. **Two options**:
|
||||
- **Reload from disk**: Discard local changes, load external version
|
||||
- **Overwrite**: Keep local changes, overwrite external version
|
||||
|
||||
## 🐛 Troubleshooting
|
||||
|
||||
### Issue: 400 Bad Request
|
||||
|
||||
**Symptom**: `GET /api/files/<path> 400 (Bad Request)`
|
||||
|
||||
**Cause**: Using old splat route format
|
||||
|
||||
**Fix**: Already fixed! The code now uses query params.
|
||||
|
||||
### Issue: Invalid Excalidraw Format
|
||||
|
||||
**Symptom**: "Invalid Excalidraw format" error
|
||||
|
||||
**Cause**: File uses wrong compression (zlib instead of LZ-String)
|
||||
|
||||
**Fix**: Already fixed! The parser now uses LZ-String.
|
||||
|
||||
### Issue: File Won't Open in Obsidian
|
||||
|
||||
**Symptom**: Obsidian shows error when opening file
|
||||
|
||||
**Cause**: File not in proper Obsidian format
|
||||
|
||||
**Fix**: Already fixed! Files are now saved with correct format.
|
||||
|
||||
## 📊 Verification Checklist
|
||||
|
||||
- [x] `lz-string` package installed
|
||||
- [x] Backend routes use query params (`?path=`)
|
||||
- [x] Backend uses LZ-String (not zlib)
|
||||
- [x] Frontend services use query params
|
||||
- [x] Files saved in Obsidian format
|
||||
- [x] Front matter preserved
|
||||
- [x] Unit tests pass (16/16)
|
||||
- [x] Migration script available
|
||||
- [x] Documentation complete
|
||||
|
||||
## 🎯 Next Steps
|
||||
|
||||
1. **Test with your vault**: Copy an Excalidraw file from Obsidian to the vault
|
||||
2. **Verify round-trip**: Open → Edit → Save → Re-open in Obsidian
|
||||
3. **Migrate old files**: Run migration script if needed
|
||||
4. **Report issues**: Check console for any errors
|
||||
|
||||
## 📚 Additional Resources
|
||||
|
||||
- Full implementation details: `docs/EXCALIDRAW_IMPLEMENTATION.md`
|
||||
- Backend utilities: `server/excalidraw-obsidian.mjs`
|
||||
- Frontend service: `src/app/features/drawings/excalidraw-io.service.ts`
|
||||
- Tests: `server/excalidraw-obsidian.test.mjs`
|
||||
- Migration: `server/migrate-excalidraw.mjs`
|
||||
@@ -0,0 +1,216 @@
|
||||
# Fix de la Sauvegarde Excalidraw - Diagnostic et Solution
|
||||
|
||||
## Problème Initial
|
||||
|
||||
1. **Bouton Sauvegarde ne déclenchait aucune requête réseau**
|
||||
2. **Boutons Export PNG/SVG désactivés en permanence**
|
||||
|
||||
## Cause Racine
|
||||
|
||||
Le problème était dans la **séquence de binding des listeners** :
|
||||
|
||||
### Séquence défaillante :
|
||||
1. `ngAfterViewInit()` s'exécute
|
||||
2. Tente de binder les listeners sur `<excalidraw-editor>`
|
||||
3. **Mais l'élément n'existe pas encore** car il est derrière `*ngIf="!isLoading()"`
|
||||
4. Les listeners ne sont jamais attachés
|
||||
5. L'événement `scene-change` n'est jamais capturé
|
||||
6. `excalidrawReady` reste `false`
|
||||
7. Les exports restent désactivés
|
||||
|
||||
## Solution Implémentée
|
||||
|
||||
### 1. Binding au bon moment
|
||||
|
||||
**Avant** :
|
||||
```typescript
|
||||
ngAfterViewInit(): void {
|
||||
this.bindEditorHostListeners(); // ❌ Trop tôt
|
||||
setTimeout(() => this.bindEditorHostListeners(), 0);
|
||||
}
|
||||
```
|
||||
|
||||
**Après** :
|
||||
```typescript
|
||||
onExcalidrawReady() {
|
||||
this.excalidrawReady = true;
|
||||
this.bindEditorHostListeners(); // ✅ Après le (ready) event
|
||||
}
|
||||
|
||||
ngAfterViewInit(): void {
|
||||
// L'élément sera bindé via (ready)="onExcalidrawReady()"
|
||||
}
|
||||
```
|
||||
|
||||
Le template a déjà `(ready)="onExcalidrawReady()"` qui se déclenche quand l'API Excalidraw est disponible.
|
||||
|
||||
### 2. Indicateur Visuel de Sauvegarde
|
||||
|
||||
Remplacement du bouton texte par un **indicateur visuel avec icône de disquette** :
|
||||
|
||||
#### États :
|
||||
- 🔴 **Rouge** + "Non sauvegardé" : modifications non enregistrées
|
||||
- ⚫ **Gris** + "Sauvegardé" : tout est sauvegardé
|
||||
- 🟡 **Jaune** + "Sauvegarde..." + animation pulse : sauvegarde en cours
|
||||
|
||||
#### Comportement :
|
||||
- **Cliquable** : force une sauvegarde immédiate
|
||||
- **Tooltip** : indique l'état et suggère Ctrl+S
|
||||
- **Toast** : notification "Sauvegarde réussie" ou "Erreur de sauvegarde"
|
||||
|
||||
### 3. Sauvegarde Automatique
|
||||
|
||||
**Pipeline RxJS** :
|
||||
```typescript
|
||||
fromEvent<CustomEvent>(host, 'scene-change')
|
||||
.pipe(
|
||||
debounceTime(2000), // Attend 2s après le dernier changement
|
||||
distinctUntilChanged(), // Ignore si identique au dernier hash
|
||||
switchMap(() => save()), // Sauvegarde
|
||||
)
|
||||
```
|
||||
|
||||
### 4. Logs de Diagnostic
|
||||
|
||||
Ajout de logs console pour tracer le flux :
|
||||
- `🎨 Excalidraw Ready - Binding listeners`
|
||||
- `🔗 Binding Excalidraw host listeners`
|
||||
- `📝 Scene changed`
|
||||
- `💾 Autosaving...`
|
||||
- `✅ Autosave successful`
|
||||
- `💾 Manual save triggered`
|
||||
- `📤 Sending save request...`
|
||||
- `✅ Manual save successful`
|
||||
|
||||
## Fichiers Modifiés
|
||||
|
||||
### `src/app/features/drawings/drawings-editor.component.ts`
|
||||
- Déplacement du binding dans `onExcalidrawReady()`
|
||||
- Ajout de logs pour diagnostic
|
||||
- Toast sur sauvegarde manuelle
|
||||
- Debounce augmenté à 2s pour l'autosave
|
||||
|
||||
### `src/app/features/drawings/drawings-editor.component.html`
|
||||
- Remplacement du bouton "💾 Sauvegarder" par indicateur visuel
|
||||
- Icône SVG de disquette avec états de couleur
|
||||
- Suppression des indicateurs redondants ("Modifications non enregistrées")
|
||||
- Conservation uniquement des erreurs et conflits
|
||||
|
||||
## Comment Tester
|
||||
|
||||
### 1. Ouvrir un fichier
|
||||
```
|
||||
1. Ouvrir tests.excalidraw.md
|
||||
2. Vérifier dans la console : "🎨 Excalidraw Ready"
|
||||
3. Vérifier : "🔗 Binding Excalidraw host listeners"
|
||||
```
|
||||
|
||||
### 2. Test Sauvegarde Automatique
|
||||
```
|
||||
1. Ajouter un élément au dessin
|
||||
2. Vérifier console : "📝 Scene changed"
|
||||
3. Attendre 2 secondes
|
||||
4. Vérifier console : "💾 Autosaving..."
|
||||
5. Vérifier console : "✅ Autosave successful"
|
||||
6. Vérifier requête réseau : PUT /api/files?path=...
|
||||
7. Vérifier indicateur : 🔴 Rouge → ⚫ Gris
|
||||
```
|
||||
|
||||
### 3. Test Sauvegarde Manuelle
|
||||
```
|
||||
1. Ajouter un élément au dessin
|
||||
2. Cliquer sur l'indicateur (disquette rouge)
|
||||
3. Vérifier console : "💾 Manual save triggered"
|
||||
4. Vérifier console : "📤 Sending save request..."
|
||||
5. Vérifier console : "✅ Manual save successful"
|
||||
6. Vérifier toast : "Sauvegarde réussie"
|
||||
7. Vérifier requête réseau : PUT /api/files?path=...
|
||||
8. Vérifier indicateur : 🔴 → ⚫
|
||||
```
|
||||
|
||||
### 4. Test Export PNG/SVG
|
||||
```
|
||||
1. S'assurer que le fichier est chargé
|
||||
2. Vérifier que les boutons Export sont activés
|
||||
3. Cliquer "🖼️ Export PNG"
|
||||
4. Vérifier requête réseau : PUT /api/files/blob?path=...png
|
||||
5. Vérifier toast si erreur
|
||||
```
|
||||
|
||||
### 5. Test Ctrl+S
|
||||
```
|
||||
1. Modifier le dessin
|
||||
2. Appuyer Ctrl+S (ou Cmd+S sur Mac)
|
||||
3. Vérifier console : "💾 Manual save triggered"
|
||||
4. Vérifier toast : "Sauvegarde réussie"
|
||||
```
|
||||
|
||||
## Comportement Attendu
|
||||
|
||||
### Au Chargement
|
||||
1. Spinner de chargement
|
||||
2. GET `/api/files?path=tests.excalidraw.md`
|
||||
3. `🎨 Excalidraw Ready - Binding listeners`
|
||||
4. `🔗 Binding Excalidraw host listeners`
|
||||
5. Indicateur : ⚫ Gris "Sauvegardé"
|
||||
6. Exports : activés
|
||||
|
||||
### Pendant l'Édition
|
||||
1. Ajout d'un élément
|
||||
2. `📝 Scene changed`
|
||||
3. Indicateur : 🔴 Rouge "Non sauvegardé"
|
||||
4. Attente de 2 secondes
|
||||
5. `💾 Autosaving...`
|
||||
6. PUT `/api/files?path=...`
|
||||
7. `✅ Autosave successful`
|
||||
8. Indicateur : ⚫ Gris "Sauvegardé"
|
||||
|
||||
### Après Clic Sauvegarde
|
||||
1. `💾 Manual save triggered`
|
||||
2. `📤 Sending save request...`
|
||||
3. PUT `/api/files?path=...`
|
||||
4. `✅ Manual save successful`
|
||||
5. Toast : "Sauvegarde réussie"
|
||||
6. Indicateur : ⚫ Gris "Sauvegardé"
|
||||
|
||||
## Troubleshooting
|
||||
|
||||
### Pas de logs dans la console
|
||||
→ Le composant ne charge pas, vérifier `ngOnInit()`
|
||||
|
||||
### "⚠️ Cannot bind listeners - host element not found"
|
||||
→ L'élément web component n'est pas créé, vérifier le template `*ngIf`
|
||||
|
||||
### "❌ No host element" lors du clic Sauvegarde
|
||||
→ `@ViewChild` ne trouve pas l'élément, vérifier `#editorEl`
|
||||
|
||||
### "❌ No scene data"
|
||||
→ `getScene()` retourne null, vérifier que l'API Excalidraw est initialisée
|
||||
|
||||
### Pas de requête réseau
|
||||
→ Vérifier dans la console les logs "💾" et "📤"
|
||||
→ Si absents, le binding n'a pas eu lieu
|
||||
|
||||
### Export désactivés
|
||||
→ Vérifier `excalidrawReady` dans le composant
|
||||
→ Doit être `true` après `onExcalidrawReady()`
|
||||
|
||||
## Prochaines Étapes
|
||||
|
||||
Une fois le problème résolu (les logs apparaissent et les requêtes passent) :
|
||||
|
||||
1. **Retirer les logs de debug** dans `drawings-editor.component.ts`
|
||||
2. **Tester la sauvegarde intensive** (ajouter/supprimer rapidement des éléments)
|
||||
3. **Tester les conflits** (modifier le fichier externellement)
|
||||
4. **Vérifier la performance** (fichiers avec 100+ éléments)
|
||||
5. **Tester sur mobile** (responsive + touch)
|
||||
|
||||
## Résumé
|
||||
|
||||
✅ Binding des listeners au bon moment (après `ready`)
|
||||
✅ Indicateur visuel clair (disquette colorée)
|
||||
✅ Sauvegarde automatique (2s debounce)
|
||||
✅ Sauvegarde manuelle (clic ou Ctrl+S)
|
||||
✅ Toast notifications
|
||||
✅ Logs de diagnostic
|
||||
✅ Export PNG/SVG fonctionnels
|
||||
@@ -0,0 +1,295 @@
|
||||
# Améliorations du Système de Sauvegarde Excalidraw
|
||||
|
||||
## Modifications Appliquées
|
||||
|
||||
### 1. Hash Stable et Déterministe
|
||||
|
||||
**Fichier**: `src/app/features/drawings/drawings-editor.component.ts`
|
||||
|
||||
**Problème résolu**: Hash instable causant des faux positifs/négatifs pour le dirty state.
|
||||
|
||||
**Solution**:
|
||||
- Tri stable des éléments par `id` pour éviter les changements de hash dus à l'ordre
|
||||
- Tri stable des clés de `files` pour éviter les changements de hash dus à l'ordre des propriétés
|
||||
- Suppression des propriétés volatiles (`version`, `versionNonce`, `updated`)
|
||||
|
||||
```typescript
|
||||
private hashScene(scene: ExcalidrawScene | null): string {
|
||||
try {
|
||||
if (!scene) return '';
|
||||
|
||||
// Normalize elements: remove volatile properties
|
||||
const normEls = Array.isArray(scene.elements) ? scene.elements.map((el: any) => {
|
||||
const { version, versionNonce, updated, ...rest } = el || {};
|
||||
return rest;
|
||||
}) : [];
|
||||
|
||||
// Stable sort of elements by id
|
||||
const sortedEls = normEls.slice().sort((a: any, b: any) =>
|
||||
(a?.id || '').localeCompare(b?.id || '')
|
||||
);
|
||||
|
||||
// Stable sort of files keys
|
||||
const filesObj = scene.files && typeof scene.files === 'object' ? scene.files : {};
|
||||
const sortedFilesKeys = Object.keys(filesObj).sort();
|
||||
const sortedFiles: Record<string, any> = {};
|
||||
for (const k of sortedFilesKeys) sortedFiles[k] = filesObj[k];
|
||||
|
||||
const stable = { elements: sortedEls, files: sortedFiles };
|
||||
return btoa(unescape(encodeURIComponent(JSON.stringify(stable))));
|
||||
} catch (error) {
|
||||
console.error('Error hashing scene:', error);
|
||||
return '';
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
### 2. Prévention des Sauvegardes Concurrentes
|
||||
|
||||
**Fichier**: `src/app/features/drawings/drawings-editor.component.ts`
|
||||
|
||||
**Problème résolu**: Plusieurs PUT peuvent être lancés simultanément, causant des conflits.
|
||||
|
||||
**Solution**: Ajout d'un filtre pour ignorer les autosaves si une sauvegarde est déjà en cours.
|
||||
|
||||
```typescript
|
||||
this.saveSub = sceneChange$.pipe(
|
||||
distinctUntilChanged((prev, curr) => prev.hash === curr.hash),
|
||||
debounceTime(2000),
|
||||
filter(({ hash }) => this.lastSavedHash !== hash),
|
||||
filter(() => !this.isSaving()), // ⬅️ NOUVEAU: Empêche les sauvegardes concurrentes
|
||||
tap(({ hash }) => {
|
||||
console.log('💾 Autosaving... hash:', hash.substring(0, 10));
|
||||
this.isSaving.set(true);
|
||||
this.error.set(null);
|
||||
}),
|
||||
switchMap(({ scene, hash }) => this.files.put(this.path, scene).pipe(...))
|
||||
).subscribe();
|
||||
```
|
||||
|
||||
### 3. Suppression du Mode readOnly Pendant la Sauvegarde
|
||||
|
||||
**Fichier**: `src/app/features/drawings/drawings-editor.component.html`
|
||||
|
||||
**Problème résolu**: Le passage en `readOnly` pendant la sauvegarde peut perturber les événements `onChange` et bloquer des micro-changements.
|
||||
|
||||
**Solution**: Suppression de `[readOnly]="isSaving()"`, conservation uniquement de l'indicateur visuel d'opacité.
|
||||
|
||||
```html
|
||||
<excalidraw-editor
|
||||
#editorEl
|
||||
[initialData]="scene() || { elements: [], appState: { viewBackgroundColor: '#1e1e1e' } }"
|
||||
[theme]="themeName()"
|
||||
[lang]="'fr'"
|
||||
(ready)="console.log('READY', $event); onExcalidrawReady()"
|
||||
style="display:block; height:100%; width:100%"
|
||||
></excalidraw-editor>
|
||||
```
|
||||
|
||||
### 4. Logs de Diagnostic Améliorés
|
||||
|
||||
**Fichiers**:
|
||||
- `web-components/excalidraw/ExcalidrawElement.tsx`
|
||||
- `web-components/excalidraw/define.ts`
|
||||
- `src/app/features/drawings/drawings-editor.component.html`
|
||||
|
||||
**Ajouts**:
|
||||
- Log visible `console.log` au lieu de `console.debug` pour `scene-change`
|
||||
- Log du `ready` event dans le web component
|
||||
- Log du `ready` event dans le template Angular
|
||||
- Tous les événements avec `bubbles: true, composed: true`
|
||||
|
||||
```typescript
|
||||
// ExcalidrawElement.tsx
|
||||
const onChange = (elements: any[], appState: Partial<AppState>, files: any) => {
|
||||
if (!host) return;
|
||||
const detail: SceneChangeDetail = { elements, appState, files, source: 'user' };
|
||||
console.log('[excalidraw-editor] 📝 SCENE-CHANGE dispatched', {
|
||||
elCount: Array.isArray(elements) ? elements.length : 'n/a'
|
||||
});
|
||||
host.dispatchEvent(new CustomEvent('scene-change', { detail, bubbles: true, composed: true }));
|
||||
};
|
||||
```
|
||||
|
||||
```typescript
|
||||
// define.ts
|
||||
const onReady = () => {
|
||||
console.log('[excalidraw-editor] 🎨 READY event dispatched', {
|
||||
apiAvailable: !!(this as any).__excalidrawAPI
|
||||
});
|
||||
this.dispatchEvent(new CustomEvent('ready', {
|
||||
detail: { apiAvailable: !!(this as any).__excalidrawAPI },
|
||||
bubbles: true,
|
||||
composed: true
|
||||
}));
|
||||
};
|
||||
```
|
||||
|
||||
## Check-list de Test
|
||||
|
||||
### 1. Vérifier les Événements de Base
|
||||
|
||||
Ouvrir la console DevTools et observer:
|
||||
|
||||
```javascript
|
||||
// Test manuel dans la console
|
||||
document.querySelector('excalidraw-editor')
|
||||
?.addEventListener('scene-change', e => console.log('✅ SCENE-CHANGE reçu', e?.detail));
|
||||
```
|
||||
|
||||
**Attendu**:
|
||||
- ✅ `[excalidraw-editor] 🎨 READY event dispatched` au chargement
|
||||
- ✅ `READY { detail: { apiAvailable: true } }` dans le template Angular
|
||||
- ✅ `🎨 Excalidraw Ready - Binding listeners` dans le composant
|
||||
- ✅ `🔗 Binding Excalidraw host listeners` dans le composant
|
||||
- ✅ `[excalidraw-editor] 📝 SCENE-CHANGE dispatched` à chaque modification
|
||||
- ✅ `✏️ Dirty flagged (event)` dans Angular après chaque modification
|
||||
|
||||
### 2. Tester le Dirty State
|
||||
|
||||
1. Ouvrir un fichier `.excalidraw.md`
|
||||
2. Vérifier: indicateur ⚫ Gris "Sauvegardé"
|
||||
3. Ajouter un rectangle
|
||||
4. Vérifier: indicateur 🔴 Rouge "Non sauvegardé" immédiatement
|
||||
5. Attendre 2 secondes
|
||||
6. Vérifier console: `💾 Autosaving...`
|
||||
7. Vérifier console: `✅ Autosave successful`
|
||||
8. Vérifier: indicateur ⚫ Gris "Sauvegardé"
|
||||
|
||||
### 3. Tester la Sauvegarde Manuelle
|
||||
|
||||
1. Modifier le dessin
|
||||
2. Appuyer `Ctrl+S` (ou cliquer sur l'indicateur)
|
||||
3. Vérifier console: `💾 Manual save triggered`
|
||||
4. Vérifier console: `📤 Sending save request...`
|
||||
5. Vérifier console: `✅ Manual save successful`
|
||||
6. Vérifier toast: "Sauvegarde réussie"
|
||||
7. Vérifier Network: `PUT /api/files?path=...`
|
||||
8. Vérifier: indicateur ⚫ Gris "Sauvegardé"
|
||||
|
||||
### 4. Tester la Stabilité du Hash
|
||||
|
||||
1. Ouvrir un fichier
|
||||
2. Ajouter un élément → attendre autosave
|
||||
3. Déplacer légèrement l'élément → attendre autosave
|
||||
4. Vérifier console: les hash doivent être différents
|
||||
5. Ne rien toucher pendant 5 secondes
|
||||
6. Vérifier: pas de nouveaux autosaves (hash stable)
|
||||
|
||||
### 5. Tester les Sauvegardes Concurrentes
|
||||
|
||||
1. Modifier rapidement plusieurs éléments
|
||||
2. Immédiatement appuyer `Ctrl+S` plusieurs fois
|
||||
3. Vérifier console: un seul `💾 Autosaving...` à la fois
|
||||
4. Vérifier Network: pas de requêtes PUT simultanées
|
||||
|
||||
### 6. Tester les Conflits (ETag)
|
||||
|
||||
1. Ouvrir un fichier
|
||||
2. Modifier externellement le fichier (autre éditeur)
|
||||
3. Modifier dans Excalidraw
|
||||
4. Attendre l'autosave
|
||||
5. Vérifier: bannière de conflit apparaît
|
||||
6. Tester "Recharger depuis le disque" ou "Écraser"
|
||||
|
||||
## Comportement Attendu
|
||||
|
||||
### Séquence de Chargement
|
||||
|
||||
```
|
||||
1. GET /api/files?path=test.excalidraw.md
|
||||
2. [excalidraw-editor] 🎨 READY event dispatched
|
||||
3. READY { detail: { apiAvailable: true } }
|
||||
4. 🎨 Excalidraw Ready - Binding listeners
|
||||
5. 🔗 Binding Excalidraw host listeners
|
||||
6. ✓ Dirty check and Autosave subscriptions active
|
||||
7. Indicateur: ⚫ Gris "Sauvegardé"
|
||||
```
|
||||
|
||||
### Séquence de Modification
|
||||
|
||||
```
|
||||
1. Utilisateur dessine un rectangle
|
||||
2. [excalidraw-editor] 📝 SCENE-CHANGE dispatched { elCount: 1 }
|
||||
3. ✏️ Dirty flagged (event) { lastSaved: 'abc123...', current: 'def456...' }
|
||||
4. Indicateur: 🔴 Rouge "Non sauvegardé"
|
||||
5. (attente 2s)
|
||||
6. 💾 Autosaving... hash: def456...
|
||||
7. PUT /api/files?path=... (avec If-Match: "...")
|
||||
8. ✅ Autosave successful { newHash: 'def456...' }
|
||||
9. Indicateur: ⚫ Gris "Sauvegardé"
|
||||
```
|
||||
|
||||
### Séquence de Sauvegarde Manuelle
|
||||
|
||||
```
|
||||
1. Utilisateur appuie Ctrl+S
|
||||
2. 💾 Manual save triggered
|
||||
3. 📤 Sending save request...
|
||||
4. 🧩 Snapshot { elements: 3, hasFiles: true }
|
||||
5. PUT /api/files?path=...
|
||||
6. 📥 Save response { rev: '...' }
|
||||
7. 🔁 Verify after save { ok: true, ... }
|
||||
8. ✅ Manual save successful
|
||||
9. Toast: "Sauvegarde réussie"
|
||||
10. Indicateur: ⚫ Gris "Sauvegardé"
|
||||
```
|
||||
|
||||
## Troubleshooting
|
||||
|
||||
### Pas de logs `[excalidraw-editor]`
|
||||
→ Le web component ne se charge pas. Vérifier `ngOnInit()` et l'import du custom element.
|
||||
|
||||
### `READY` n'apparaît jamais
|
||||
→ L'API Excalidraw ne s'initialise pas. Vérifier la console pour des erreurs React.
|
||||
|
||||
### `SCENE-CHANGE` n'apparaît jamais
|
||||
→ Le `onChange` n'est pas appelé. Vérifier que le composant React reçoit bien `__host`.
|
||||
|
||||
### `✏️ Dirty flagged` n'apparaît jamais
|
||||
→ Le binding n'a pas eu lieu. Vérifier que `onExcalidrawReady()` est appelé.
|
||||
|
||||
### Hash change en permanence (autosave en boucle)
|
||||
→ Le hash n'est pas stable. Vérifier que la nouvelle version de `hashScene()` est bien appliquée.
|
||||
|
||||
### Indicateur reste rouge après autosave
|
||||
→ Vérifier que `this.dirty.set(false)` est bien appelé dans le `tap()` après succès.
|
||||
|
||||
### Conflits 409 en permanence
|
||||
→ Vérifier que le serveur renvoie bien un `ETag` dans les réponses GET et PUT.
|
||||
|
||||
## Fichiers Modifiés
|
||||
|
||||
1. ✅ `src/app/features/drawings/drawings-editor.component.ts`
|
||||
- `hashScene()`: tri stable des éléments et files
|
||||
- `bindEditorHostListeners()`: ajout du filtre `!isSaving()`
|
||||
|
||||
2. ✅ `src/app/features/drawings/drawings-editor.component.html`
|
||||
- Suppression de `[readOnly]="isSaving()"`
|
||||
- Ajout de log du `ready` event
|
||||
|
||||
3. ✅ `web-components/excalidraw/ExcalidrawElement.tsx`
|
||||
- Log visible `console.log` pour `scene-change`
|
||||
|
||||
4. ✅ `web-components/excalidraw/define.ts`
|
||||
- Log visible `console.log` pour `ready`
|
||||
- Ajout de `bubbles: true, composed: true` au `ready` event
|
||||
|
||||
## Prochaines Étapes
|
||||
|
||||
Une fois les tests validés:
|
||||
|
||||
1. **Retirer les logs de debug** (optionnel, utiles pour le monitoring)
|
||||
2. **Tester avec des fichiers volumineux** (100+ éléments)
|
||||
3. **Tester sur mobile** (touch events)
|
||||
4. **Ajouter des tests E2E** pour la sauvegarde automatique
|
||||
5. **Documenter le comportement ETag** côté backend
|
||||
|
||||
## Résumé
|
||||
|
||||
✅ Hash stable et déterministe (tri des éléments et files)
|
||||
✅ Prévention des sauvegardes concurrentes
|
||||
✅ Suppression du readOnly pendant la sauvegarde
|
||||
✅ Logs de diagnostic améliorés
|
||||
✅ Événements avec bubbles et composed
|
||||
✅ Check-list de test complète
|
||||
@@ -0,0 +1,53 @@
|
||||
# Dessins (Excalidraw)
|
||||
|
||||
Cette section décrit l'intégration d'Excalidraw dans ObsiViewer.
|
||||
|
||||
## Fonctionnalités
|
||||
|
||||
- **Édition**: ouverture des fichiers `.excalidraw` de la voûte dans un éditeur dédié.
|
||||
- **Autosave**: sauvegarde automatique après 800 ms d'inactivité (avec ETag/If-Match côté serveur).
|
||||
- **Exports**: génération de vignettes PNG/SVG enregistrées en sidecar (`.excalidraw.png|.svg`).
|
||||
- **Thème**: synchronisation avec le thème Angular (`light`/`dark`).
|
||||
- **Lazy-load**: Excalidraw n'est chargé que lors de l'ouverture de l'éditeur.
|
||||
|
||||
## Utilisation
|
||||
|
||||
- **Ouvrir un dessin**: dans l'explorateur de fichiers, cliquer un fichier avec l'extension `.excalidraw`. L'application bascule dans la vue `Dessins`.
|
||||
- **Sauvegarde**: toute modification de la scène déclenche un événement `scene-change` capturé par l'éditeur Angular. La sauvegarde s'exécute automatiquement après 800 ms. Un indicateur "Saving…" s'affiche pendant l'opération.
|
||||
- **Exporter**: utiliser les boutons "Export PNG" ou "Export SVG". Les fichiers sidecar sont écrits via l'API `/api/files/blob/:path`.
|
||||
|
||||
## Détails techniques
|
||||
|
||||
- **Web Component**: `<excalidraw-editor>` est défini via `react-to-webcomponent` sans Shadow DOM (`shadow:false`) pour éviter les soucis d'overlays/styling.
|
||||
- **Wrapper**: `web-components/excalidraw/ExcalidrawElement.tsx` monte `<Excalidraw />` et expose des méthodes (`getScene()`, `exportPNG()`, `exportSVG()`, `setScene()`, `refresh()`).
|
||||
- **Événements**: le wrapper émet `ready` et `scene-change` (kebab-case).
|
||||
- **Thème**: la prop `theme` est propagée à Excalidraw. Tout changement de `ThemeService` se reflète automatiquement.
|
||||
- **Backend**: endpoints
|
||||
- `GET /api/files/:path` lit des `.excalidraw` avec validation Zod (schéma minimal) et renvoie un `ETag`.
|
||||
- `PUT /api/files/:path` écrit de façon atomique, vérifie `If-Match` si fourni, limite 10 MB.
|
||||
- `PUT /api/files/blob/:path` écrit un binaire `.png` ou `.svg` (≤10 MB).
|
||||
- `/api/files/metadata` fusionne la liste Meilisearch avec les `.excalidraw` trouvés sur FS.
|
||||
|
||||
## Sécurité
|
||||
|
||||
- **JSON only**: aucun HTML n'est interprété à partir du contenu `.excalidraw`.
|
||||
- **Validation**: schéma Zod minimal (structure conforme au format Excalidraw) + limites de taille.
|
||||
|
||||
## Accessibilité
|
||||
|
||||
- L'éditeur est inséré dans une zone avec focus gérable au clavier. Les actions d'export possèdent des libellés.
|
||||
|
||||
## Développement
|
||||
|
||||
- **Lazy registration**: `DrawingsEditorComponent` appelle `import('../../../../web-components/excalidraw/define')` lors de l'initialisation.
|
||||
- **Schéma**: `schemas: [CUSTOM_ELEMENTS_SCHEMA]` est appliqué au composant éditeur.
|
||||
|
||||
## Tests à prévoir
|
||||
|
||||
- **Unitaires**: debounce/autosave, services fichiers (mocks HTTP), validation serveur (schéma Zod).
|
||||
- **E2E**: ouvrir → modifier → autosave → recharger → modifications présentes ; export PNG ; bascule thème.
|
||||
|
||||
## Limitations actuelles
|
||||
|
||||
- Boîte de dialogue "Nouveau dessin" non incluse (à ajouter si besoin).
|
||||
- Refresh API disponible mais non appelée automatiquement sur redimensionnement (peut être déclenchée en option selon contexte UI).
|
||||
Reference in New Issue
Block a user