possibilité de partage un espace

src/components/Navigation.tsx

@@ -1,5 +1,3 @@
-import { useStore } from '@nanostores/react'
-import { navigationHistory, goBack } from '../store'
 
 export function Navigation() {
   return null

src/components/NavigationConsole.tsx

@@ -1,6 +1,8 @@
 import { useState, useEffect, useRef } from 'react'
-import { navigateToSpace } from '../store'
+import { navigateToSpace, currentSpace } from '../store'
 import { db } from '../db'
+import { useStore } from '@nanostores/react'
+import { generateShareLink, copyToClipboard } from '../utils/shareSpace'
 
 interface NavigationConsoleProps {
   isOpen: boolean
@@ -12,7 +14,9 @@ export function NavigationConsole({ isOpen, onClose }: NavigationConsoleProps) {
   const [existingSpaces, setExistingSpaces] = useState<string[]>([])
   const [filteredSpaces, setFilteredSpaces] = useState<string[]>([])
   const [selectedIndex, setSelectedIndex] = useState(0)
+  const [isSharing, setIsSharing] = useState(false)
   const inputRef = useRef<HTMLInputElement>(null)
+  const space = useStore(currentSpace)
 
   useEffect(() => {
     const loadSpaces = async () => {
@@ -47,11 +51,32 @@ export function NavigationConsole({ isOpen, onClose }: NavigationConsoleProps) {
     setSelectedIndex(0)
   }, [input, existingSpaces])
 
+  const handleShare = async () => {
+    if (!space) return
+
+    const shareLink = generateShareLink(space)
+    const success = await copyToClipboard(shareLink)
+
+    if (success) {
+      setIsSharing(true)
+      setTimeout(() => {
+        onClose()
+        setIsSharing(false)
+      }, 1500)
+    }
+  }
+
   const handleKeyDown = (e: React.KeyboardEvent) => {
     if (e.key === 'Escape') {
       onClose()
     } else if (e.key === 'Enter') {
       e.preventDefault()
+
+      if (input.toLowerCase() === 'share') {
+        handleShare()
+        return
+      }
+
       const targetSpace = filteredSpaces[selectedIndex] || input
       if (targetSpace.trim()) {
         navigateToSpace(sanitizeSpaceId(targetSpace.trim()))
@@ -116,6 +141,16 @@ export function NavigationConsole({ isOpen, onClose }: NavigationConsoleProps) {
         }}
       >
         <div style={{ padding: '8px' }}>
+          {isSharing ? (
+            <div style={{
+              color: '#4CAF50',
+              fontSize: '14px',
+              fontFamily: 'monospace',
+              padding: '4px 0'
+            }}>
+              ✓ Link copied to clipboard!
+            </div>
+          ) : (
             <input
               ref={inputRef}
               value={input}
@@ -132,8 +167,19 @@ export function NavigationConsole({ isOpen, onClose }: NavigationConsoleProps) {
                 fontFamily: 'monospace'
               }}
             />
+          )}
         </div>
-        {filteredSpaces.length > 0 && (
+        {input.toLowerCase() === 'share' && (
+          <div style={{
+            borderTop: '1px solid #333',
+            padding: '12px',
+            color: '#4CAF50',
+            fontSize: '13px'
+          }}>
+            Press Enter to share the current space.
+          </div>
+        )}
+        {filteredSpaces.length > 0 && input.toLowerCase() !== 'share' && (
           <div style={{ borderTop: '1px solid #333', maxHeight: '200px', overflowY: 'auto' }}>
             {filteredSpaces.map((space, index) => {
               const isExisting = existingSpaces.includes(space)

src/components/Space.tsx

@@ -27,7 +27,7 @@ export function Space() {
   }, [])
 
   // Click in empty space - clear selection (but not if we just finished a rectangle selection)
-  const handleClick = (e: React.MouseEvent) => {
+  const handleClick = () => {
     if (justFinishedSelection) {
       setJustFinishedSelection(false)
       return

src/components/WelcomeModal.tsx

@@ -1,4 +1,4 @@
-import { useState, useEffect } from 'react'
+import { useState } from 'react'
 
 interface WelcomeModalProps {
   isOpen: boolean
@@ -75,9 +75,12 @@ export function WelcomeModal({ isOpen, onClose }: WelcomeModalProps) {
             <p style={{ margin: '0 0 12px 0' }}>
               <strong>Warping:</strong> Double click on a note to warp between spaces.
             </p>
-            <p style={{ margin: '0' }}>
+            <p style={{ margin: '0 0 12px 0' }}>
               <strong>Delete :</strong> Backspace/Del to delete a note.
             </p>
+            <p style={{ margin: '0' }}>
+              <strong>Share:</strong> Type <code style={{ background: '#333', padding: '2px 4px', borderRadius: '2px' }}>share</code> in the nav console to share a space through a browser link (overrides the target).
+            </p>
           </div>
 
           <div style={{ marginBottom: '20px' }}>

src/store.ts

@@ -1,5 +1,6 @@
 import { atom } from 'nanostores'
 import { db } from './db'
+import { decompressSpace } from './utils/shareSpace'
 
 type Note = {
   id: string
@@ -34,6 +35,36 @@ export const loadSpace = async (spaceId: string) => {
   }
 
   currentSpace.set(null)
+  
+  // Check if it's a shared space link
+  if (spaceId.startsWith('shared/')) {
+    const compressed = spaceId.substring(7) // Remove 'shared/' prefix
+    const decompressed = decompressSpace(compressed)
+    
+    if (decompressed) {
+      // Save the shared space with a new ID
+      const newSpaceId = `imported-${Date.now()}`
+      let space = await db.createSpace(newSpaceId)
+      
+      // Add all notes from the shared space
+      for (const note of decompressed.notes) {
+        await db.addNoteToSpace(newSpaceId, note)
+      }
+      
+      // Reload the space to get the updated version
+      space = (await db.getSpace(newSpaceId))!
+      currentSpace.set(space)
+      currentSpaceId.set(newSpaceId)
+      window.history.pushState({}, '', `/#${newSpaceId}`)
+      
+      await refreshExistingSpaces()
+      return space
+    } else {
+      // If decompression fails, go to crossroad
+      spaceId = 'crossroad'
+    }
+  }
+  
   let space = await db.getSpace(spaceId)
   if (!space) {
     space = await db.createSpace(spaceId)
@@ -104,6 +135,12 @@ export const deleteNote = async (noteId: string) => {
 
 export const getSpaceFromUrl = () => {
   const hash = window.location.hash.slice(1)
+  
+  // Check if it's a shared space link
+  if (hash.startsWith('shared/')) {
+    return hash
+  }
+  
   return hash || 'crossroad'
 }
 

src/utils/shareSpace.ts

@@ -0,0 +1,45 @@
+import type { Space } from '../db'
+
+export function compressSpace(space: Space): string {
+  const minified = {
+    id: space.id,
+    notes: space.notes.map(note => ({
+      id: note.id,
+      x: note.x,
+      y: note.y,
+      content: note.content
+    }))
+  }
+  
+  const jsonString = JSON.stringify(minified)
+  const base64 = btoa(encodeURIComponent(jsonString))
+  return base64
+}
+
+export function decompressSpace(compressed: string): Space | null {
+  try {
+    const jsonString = decodeURIComponent(atob(compressed))
+    const space = JSON.parse(jsonString)
+    return space
+  } catch (e) {
+    console.error('Failed to decompress space:', e)
+    return null
+  }
+}
+
+export function generateShareLink(space: Space): string {
+  const compressed = compressSpace(space)
+  const currentUrl = new URL(window.location.href)
+  currentUrl.hash = `shared/${compressed}`
+  return currentUrl.toString()
+}
+
+export async function copyToClipboard(text: string): Promise<boolean> {
+  try {
+    await navigator.clipboard.writeText(text)
+    return true
+  } catch (err) {
+    console.error('Failed to copy:', err)
+    return false
+  }
+}