More refactoring

Helper function to display a scrollable form in a dialog

lib/widget/dialogs.dart

@@ -39,3 +39,26 @@ void showProgressDialog(BuildContext context, String title, String description)
 void hideProgressDialog(BuildContext context) {
   Navigator.pop(context);
 }
+
+void showFormDialog(BuildContext context, String title, {GlobalKey<FormState> key, List<Widget> fields, List<Widget> actions}) {
+  showDialog(
+    context: context,
+    builder: (BuildContext context) {
+      return AlertDialog(
+          title: Text(title),
+          actions: actions,
+          content: Form(
+              key: key,
+              child: SingleChildScrollView(
+                  child: Column(
+                      mainAxisSize: MainAxisSize.min,
+                      mainAxisAlignment: MainAxisAlignment.start,
+                      crossAxisAlignment: CrossAxisAlignment.start,
+                      children: fields
+                  )
+              )
+          )
+      );
+    }
+  );
+}

lib/widget/stock_detail.dart

@@ -2,6 +2,7 @@
 
 import 'package:InvenTree/inventree/stock.dart';
 import 'package:InvenTree/inventree/part.dart';
+import 'package:InvenTree/widget/dialogs.dart';
 import 'package:InvenTree/widget/fields.dart';
 import 'package:InvenTree/widget/location_display.dart';
 import 'package:InvenTree/widget/part_detail.dart';
@@ -102,10 +103,8 @@ class _StockItemDisplayState extends RefreshableState<StockDetailWidget> {
 
     _quantityController.clear();
 
-    showDialog(context: context,
+    showFormDialog(context, "Add Stock",
-      builder: (BuildContext context) {
+      key: _addStockKey,
-        return AlertDialog(
-          title: Text("Add Stock"),
       actions: <Widget>[
         FlatButton(
           child: Text("Add"),
@@ -114,13 +113,7 @@ class _StockItemDisplayState extends RefreshableState<StockDetailWidget> {
             },
         )
       ],
-          content: Form(
+      fields: <Widget> [
-            key: _addStockKey,
-            child: Column(
-              mainAxisAlignment: MainAxisAlignment.start,
-              crossAxisAlignment: CrossAxisAlignment.start,
-              mainAxisSize: MainAxisSize.min,
-              children: <Widget>[
         Text("Current stock: ${item.quantity}"),
         QuantityField(
           label: "Add Stock",
@@ -133,13 +126,8 @@ class _StockItemDisplayState extends RefreshableState<StockDetailWidget> {
           controller: _notesController,
         )
       ],
-            )
-          ),
     );
   }
-    );
-    // TODO - Form for adding stock
-  }
 
   void _removeStock() async {
     Navigator.of(context).pop();
@@ -159,10 +147,8 @@ class _StockItemDisplayState extends RefreshableState<StockDetailWidget> {
 
     _quantityController.clear();
 
-    showDialog(context: context,
+    showFormDialog(context, "Remove Stock",
-      builder: (BuildContext context) {
+        key: _removeStockKey,
-        return AlertDialog(
-          title: Text("Remove Stock"),
         actions: <Widget>[
           FlatButton(
             child: Text("Remove"),
@@ -171,13 +157,7 @@ class _StockItemDisplayState extends RefreshableState<StockDetailWidget> {
             },
           )
         ],
-          content: Form(
+        fields: <Widget>[
-            key: _removeStockKey,
-            child: Column(
-              mainAxisSize: MainAxisSize.min,
-              mainAxisAlignment: MainAxisAlignment.start,
-              crossAxisAlignment: CrossAxisAlignment.start,
-              children: <Widget>[
           Text("Current stock: ${item.quantity}"),
           QuantityField(
             label: "Remove stock",
@@ -191,10 +171,6 @@ class _StockItemDisplayState extends RefreshableState<StockDetailWidget> {
             controller: _notesController,
           ),
         ],
-            )
-          ),
-        );
-      }
     );
   }
 
@@ -214,12 +190,10 @@ class _StockItemDisplayState extends RefreshableState<StockDetailWidget> {
   }
 
   void _countStockDialog() async {
-    showDialog(
+
-      context: context,
+    showFormDialog(context, "Count Stock",
-      builder: (BuildContext context) {
+      key: _countStockKey,
-        return AlertDialog(
+      actions: <Widget> [
-          title: Text("Count Stock"),
-          actions: <Widget>[
         FlatButton(
           child: Text("Count"),
           onPressed: () {
@@ -227,13 +201,7 @@ class _StockItemDisplayState extends RefreshableState<StockDetailWidget> {
           },
         )
       ],
-          content: Form(
+      fields: <Widget> [
-            key: _countStockKey,
-            child: Column(
-              mainAxisAlignment: MainAxisAlignment.start,
-              crossAxisAlignment: CrossAxisAlignment.start,
-              mainAxisSize: MainAxisSize.min,
-              children: <Widget>[
         QuantityField(
           label: "Count Stock",
           hint: "${item.quantity}",
@@ -245,11 +213,7 @@ class _StockItemDisplayState extends RefreshableState<StockDetailWidget> {
           ),
           controller: _notesController,
         )
-              ],
+      ]
-            )
-          )
-        );
-      }
     );
   }
 
@@ -258,8 +222,75 @@ class _StockItemDisplayState extends RefreshableState<StockDetailWidget> {
     // TODO
   }
 
-  void _transferStockDialog() {
+  void _transferStockDialog() async {
-    // TODO - Form for transferring stock
+
+    var locations = await InvenTreeStockLocation().list(context);
+    final _selectedController = TextEditingController();
+
+    InvenTreeStockLocation selectedLocation;
+
+    _quantityController.text = "${item.quantity}";
+
+    showFormDialog(context, "Transfer Stock",
+        key: _moveStockKey,
+        actions: <Widget>[
+          FlatButton(
+            child: Text("Transfer"),
+            onPressed: () {
+              if (_moveStockKey.currentState.validate()) {
+                // TODO - Transfer!
+              }
+            },
+          )
+        ],
+        fields: <Widget>[
+          QuantityField(
+            label: "Quantity",
+            controller: _quantityController,
+            max: item.quantity,
+          ),
+          TypeAheadFormField(
+              textFieldConfiguration: TextFieldConfiguration(
+                  controller: _selectedController,
+                  autofocus: true,
+                  decoration: InputDecoration(
+                      hintText: "Search for location",
+                      border: OutlineInputBorder()
+                  )
+              ),
+              suggestionsCallback: (pattern) async {
+                var suggestions = List<InvenTreeStockLocation>();
+
+                for (var loc in locations) {
+                  if (loc.matchAgainstString(pattern)) {
+                    suggestions.add(loc as InvenTreeStockLocation);
+                  }
+                }
+
+                return suggestions;
+              },
+              validator: (value) {
+                if (selectedLocation == null) {
+                  return "Select a location";
+                }
+
+                return null;
+              },
+              onSuggestionSelected: (suggestion) {
+                selectedLocation = suggestion as InvenTreeStockLocation;
+                _selectedController.text = selectedLocation.pathstring;
+              },
+              itemBuilder: (context, suggestion) {
+                var location = suggestion as InvenTreeStockLocation;
+
+                return ListTile(
+                  title: Text("${location.pathstring}"),
+                  subtitle: Text("${location.description}"),
+                );
+              }
+          ),
+        ],
+    );
   }
 
   /*