fix(gps): erreur explicite + saisie manuelle si GPS indisponible (HTTP/laptop)

navigator.geolocation est undefined sur HTTP hors localhost (contexte non sécurisé).
- Message d'erreur visible selon le cas (permission, HTTPS, timeout)
- Fallback : deux champs lat/lon s'affichent automatiquement
- TodoForm : bouton GPS toujours actif (plus disabled sur navigator.geolocation)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/src/components/notes/NoteForm.tsx

@@ -30,6 +30,8 @@ export default function NoteForm({ initialValues, onSubmit, onCancel, submitLabe
   const [gpsLat, setGpsLat] = useState<number | undefined>(initialValues?.gps_lat ?? undefined)
   const [gpsLon, setGpsLon] = useState<number | undefined>(initialValues?.gps_lon ?? undefined)
   const [gpsLoading, setGpsLoading] = useState(false)
+  const [gpsError, setGpsError] = useState<string | null>(null)
+  const [gpsManual, setGpsManual] = useState(false)
   const [saving, setSaving] = useState(false)
   const [error, setError] = useState<string | null>(null)
   const contentRef = useRef<HTMLTextAreaElement>(null)
@@ -39,19 +41,37 @@ export default function NoteForm({ initialValues, onSubmit, onCancel, submitLabe
   }
 
   function handleGps() {
-    if (!navigator.geolocation) return
+    setGpsError(null)
+    if (!navigator.geolocation) {
+      setGpsError('GPS non disponible (HTTPS requis hors localhost)')
+      setGpsManual(true)
+      return
+    }
     setGpsLoading(true)
     navigator.geolocation.getCurrentPosition(
       pos => {
         setGpsLat(pos.coords.latitude)
         setGpsLon(pos.coords.longitude)
         setGpsLoading(false)
+        setGpsManual(false)
+      },
+      err => {
+        setGpsLoading(false)
+        if (err.code === 1) setGpsError('Permission refusée')
+        else if (err.code === 2) setGpsError('Position indisponible — saisie manuelle ?')
+        else setGpsError('Délai dépassé — saisie manuelle ?')
+        setGpsManual(true)
       },
-      () => setGpsLoading(false),
       { timeout: 8000 },
     )
   }
 
+  function handleManualCoord(field: 'lat' | 'lon', val: string) {
+    const n = parseFloat(val.replace(',', '.'))
+    if (field === 'lat') setGpsLat(isNaN(n) ? undefined : n)
+    else setGpsLon(isNaN(n) ? undefined : n)
+  }
+
   async function handleSubmit() {
     if (!content.trim()) return
     setSaving(true)
@@ -112,36 +132,57 @@ export default function NoteForm({ initialValues, onSubmit, onCancel, submitLabe
       </div>
 
       {/* GPS */}
-      <div style={{ display: 'flex', gap: 8, alignItems: 'center' }}>
+      <div style={{ display: 'flex', flexDirection: 'column', gap: 6 }}>
-        <button
+        <div style={{ display: 'flex', gap: 8, alignItems: 'center' }}>
-          type="button"
+          <button
-          onClick={handleGps}
+            type="button"
-          disabled={gpsLoading}
+            onClick={handleGps}
-          style={{
+            disabled={gpsLoading}
-            padding: '6px 14px',
+            style={{
-            borderRadius: 8,
+              padding: '6px 14px', borderRadius: 8,
-            border: '1px solid var(--bg-5)',
+              border: '1px solid var(--bg-5)',
-            background: gpsLat ? 'var(--info)' : 'var(--bg-4)',
+              background: gpsLat != null ? 'var(--info)' : 'var(--bg-4)',
-            color: gpsLat ? '#fff' : 'var(--ink-2)',
+              color: gpsLat != null ? '#fff' : 'var(--ink-2)',
-            cursor: 'pointer',
+              cursor: gpsLoading ? 'default' : 'pointer',
-            fontFamily: 'var(--font-ui)',
+              fontFamily: 'var(--font-ui)', fontSize: 13, minHeight: 36,
-            fontSize: 13,
+            }}
-            minHeight: 36,
+          >
-          }}
+            <i className={`fa-solid fa-location-dot`} style={{ marginRight: 6 }} />
-        >
+            {gpsLoading ? '…' : gpsLat != null ? 'GPS capturé' : 'Ajouter GPS'}
-          {gpsLoading ? '…' : gpsLat ? '📍 GPS capturé' : '📍 Ajouter GPS'}
+          </button>
-        </button>
+          {gpsLat != null && (
-        {gpsLat && (
+            <>
-          <>
+              <span style={{ color: 'var(--ink-3)', fontSize: 11, fontFamily: 'var(--font-mono)', flex: 1 }}>
-            <span style={{ color: 'var(--ink-3)', fontSize: 11, fontFamily: 'var(--font-mono)' }}>
+                {gpsLat.toFixed(5)}, {gpsLon?.toFixed(5)}
-              {gpsLat.toFixed(5)}, {gpsLon?.toFixed(5)}
+              </span>
-            </span>
+              <button
-            <button
+                type="button"
-              type="button"
+                onClick={() => { setGpsLat(undefined); setGpsLon(undefined); setGpsManual(false); setGpsError(null) }}
-              onClick={() => { setGpsLat(undefined); setGpsLon(undefined) }}
+                style={{ background: 'transparent', border: 'none', color: 'var(--err)', cursor: 'pointer', fontSize: 14 }}
-              style={{ background: 'transparent', border: 'none', color: 'var(--err)', cursor: 'pointer', fontSize: 14 }}
+              >✕</button>
-            >✕</button>
+            </>
-          </>
+          )}
+        </div>
+
+        {gpsError && (
+          <span style={{ color: 'var(--warn)', fontSize: 11, fontFamily: 'var(--font-ui)' }}>
+            {gpsError}
+          </span>
+        )}
+
+        {gpsManual && gpsLat == null && (
+          <div style={{ display: 'flex', gap: 6 }}>
+            <input
+              style={{ ...inputStyle, flex: 1, fontSize: 12 }}
+              placeholder="Latitude (ex: 48.8566)"
+              onChange={e => handleManualCoord('lat', e.target.value)}
+            />
+            <input
+              style={{ ...inputStyle, flex: 1, fontSize: 12 }}
+              placeholder="Longitude (ex: 2.3522)"
+              onChange={e => handleManualCoord('lon', e.target.value)}
+            />
+          </div>
         )}
       </div>
 

frontend/src/components/todos/TodoForm.tsx

@@ -69,6 +69,8 @@ export default function TodoForm({ onSubmit, onCancel, initialValues, submitLabe
   const [photoPath, setPhotoPath] = useState<string | undefined>(initialValues?.photo_path ?? undefined)
   const [photoLoading, setPhotoLoading] = useState(false)
   const [gpsLoading, setGpsLoading] = useState(false)
+  const [gpsError, setGpsError] = useState<string | null>(null)
+  const [gpsManual, setGpsManual] = useState(false)
   const [loading, setLoading] = useState(false)
   const fileRef = useRef<HTMLInputElement>(null)
 
@@ -109,18 +111,37 @@ export default function TodoForm({ onSubmit, onCancel, initialValues, submitLabe
   }, [])
 
   function handleGps() {
-    if (!navigator.geolocation) return
+    setGpsError(null)
+    if (!navigator.geolocation) {
+      setGpsError('GPS non disponible (HTTPS requis hors localhost)')
+      setGpsManual(true)
+      return
+    }
     setGpsLoading(true)
     navigator.geolocation.getCurrentPosition(
       pos => {
         setGpsLat(pos.coords.latitude)
         setGpsLng(pos.coords.longitude)
         setGpsLoading(false)
+        setGpsManual(false)
       },
-      () => setGpsLoading(false)
+      err => {
+        setGpsLoading(false)
+        if (err.code === 1) setGpsError('Permission refusée')
+        else if (err.code === 2) setGpsError('Position indisponible — saisie manuelle ?')
+        else setGpsError('Délai dépassé — saisie manuelle ?')
+        setGpsManual(true)
+      },
+      { timeout: 8000 },
     )
   }
 
+  function handleManualCoord(field: 'lat' | 'lng', val: string) {
+    const n = parseFloat(val.replace(',', '.'))
+    if (field === 'lat') setGpsLat(isNaN(n) ? undefined : n)
+    else setGpsLng(isNaN(n) ? undefined : n)
+  }
+
   async function handleSubmit(e: React.FormEvent) {
     e.preventDefault()
     if (!title.trim()) return
@@ -296,7 +317,7 @@ export default function TodoForm({ onSubmit, onCancel, initialValues, submitLabe
           <button
             type="button"
             onClick={handleGps}
-            disabled={!navigator.geolocation}
+            disabled={gpsLoading}
             style={{
               flex: 1,
               padding: '8px',
@@ -306,7 +327,7 @@ export default function TodoForm({ onSubmit, onCancel, initialValues, submitLabe
               color: gpsLat != null ? '#fff' : 'var(--ink-3)',
               fontFamily: 'var(--font-ui)',
               fontSize: 13,
-              cursor: navigator.geolocation ? 'pointer' : 'default',
+              cursor: gpsLoading ? 'default' : 'pointer',
               minHeight: 40,
             }}
           >
@@ -318,6 +339,25 @@ export default function TodoForm({ onSubmit, onCancel, initialValues, submitLabe
             ou Ctrl+V pour coller une image
           </span>
         )}
+        {gpsError && (
+          <span style={{ color: 'var(--warn)', fontSize: 11, fontFamily: 'var(--font-ui)', paddingLeft: 4 }}>
+            {gpsError}
+          </span>
+        )}
+        {gpsManual && gpsLat == null && (
+          <div style={{ display: 'flex', gap: 6 }}>
+            <input
+              style={{ ...inputStyle, flex: 1, fontSize: 12 }}
+              placeholder="Latitude (ex: 48.8566)"
+              onChange={e => handleManualCoord('lat', e.target.value)}
+            />
+            <input
+              style={{ ...inputStyle, flex: 1, fontSize: 12 }}
+              placeholder="Longitude (ex: 2.3522)"
+              onChange={e => handleManualCoord('lng', e.target.value)}
+            />
+          </div>
+        )}
       </div>
 
       {/* Boutons */}