preparing to make items/locations referencable

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

frontend/src/App.svelte

@@ -99,6 +99,8 @@
         <Route path="/project/:id/view"            component={ViewPrj} />
         <Route path="/search"                      component={Search} />
         <Route path="/stock"                       component={Stock} />
+        <Route path="/stock/location/:location_id" component={Stock} />
+        <Route path="/stock/:owner/:owner_id/item/:item_id" component={Stock} />
         <Route path="/tags"                        component={TagList} />
         <Route path="/tags/use/:tag"               component={TagUses} />
         <Route path="/task"                        component={TaskList} />

frontend/src/routes/project/Kanban.svelte

@@ -47,7 +47,7 @@
     function updateUrl(){
         let url = window.location.origin + window.location.pathname;
         if (filter_input) url += '?filter=' + encodeURI(filter_input);
-        window.history.replaceState(history.state, '', url);
+        window.history.replaceState(window.history.state, '', url);
     }
 
     async function create(name,user_id,state){

frontend/src/routes/stock/Index.svelte

@@ -20,7 +20,14 @@
 
     $effect(() => {
         // This effect runs whenever `location` changes
-        if (location !== null) item = null;
+        if (location !== null) {
+            item = null;
+            setLocationUrl();
+        }
+    });
+
+    $effect(() => {
+        if (item !== null) setItemUrl();
     });
     let properties = $state(null);
     let top_level = $state(null);
@@ -38,12 +45,6 @@
         } else error(res);
     }
 
-    function unlistLocation(loc){
-        for (var owner of top_level){
-            if (owner.locations && dropNestedLocation(owner.locations,loc)) break;
-        }
-    }
-
     function drag_item(item){
         draggedLocation = null;
         draggedItem = item;
@@ -154,6 +155,26 @@
         }
     }
 
+    function setItemUrl(){
+        var owner = `/${item.owner.type}/${item.owner.id}`
+        var code = `/item/${item.owner_number}`
+        let url = window.location.origin + '/stock' + owner + code;
+        window.history.replaceState(window.history.state, '', url);
+    }
+
+    function setLocationUrl(){
+       let url = window.location.origin + '/stock/location/' + location.id;
+       window.history.replaceState(window.history.state, '', url);
+    }
+
+    function unlistLocation(loc){
+        for (var owner of top_level){
+            if (owner.locations && dropNestedLocation(owner.locations,loc)) break;
+        }
+    }
+
+
+
     onMount(load);
 </script>