organisations dialog improved

lib/common/widgets/organisations_dialog.dart

@@ -19,19 +19,22 @@ class FindOrganisations {
   // eg items: organisations.getFavourites().orderBy(name),
 
   Future<Organisation> dialog(context) {
+    bool _searchEnabled = false;
     TextEditingController searchBarText = new TextEditingController();
     var organisations = new Organisations();
     var listTitle = "All Organisations";
     var organisationsList = organisations.getTestData();
 
-    void _submitSearch(String search) {
+    void _submitSearch(String search) async {
+      _searchEnabled = false;
       listTitle = "Results for \'" + search + "\'";
 
       var futureOrgs = organisations.findOrganisations(search);
-      futureOrgs.then((val) {
-        debugPrint("There are " + val.length.toString() +
+      futureOrgs.then((value) {
+        debugPrint("There are " + value.length.toString() +
             " payees matching the query \'" + search + "\'.");
-        organisationsList = val;
+        organisationsList = value;
+        _searchEnabled = true;
       });
     }
 
@@ -49,16 +52,26 @@ class FindOrganisations {
                   child: Row(
                     children: [
                       Container(
-                        width: 200,
+                        width: 140,
                         height: 50,
                         child: TextField(
                           controller: searchBarText,
                           decoration: InputDecoration(
                             hintText: "Payee Name",
                           ),
-                          onSubmitted: (_) {
+                          onChanged: (value) {
+                            if (value.length > 0) {
+                              _searchEnabled = true;
+                            } else {
+                              _searchEnabled = false;
+                            }
+                            setState(() => {});
+                          },
+                          onSubmitted: (value) {
+                            if (_searchEnabled) {
                               _submitSearch(searchBarText.text);
                               setState(() => {});
+                            }
                           },
                         ),
                       ),
@@ -66,16 +79,20 @@ class FindOrganisations {
                       Container(
                         width: 80,
                         padding: EdgeInsets.fromLTRB(20, 0, 0, 0),
+                        child: IgnorePointer(
+                          ignoring: _searchEnabled,
                           child: RaisedButton(
                             onPressed: () {
                               _submitSearch(searchBarText.text);
                               setState(() => {});
                               },
+
                             child: Icon(Icons.search, color: Colors.white),
-                          color: Colors.blue,
+                            color: _searchEnabled ? Colors.blue : Colors.blue[200],
                             // make inactive when search in progress as activity indicator
                           ),
                         ),
+                      ),
                     ],
                   ),
                 ),

lib/pages/receipt_page_2.dart

@@ -149,8 +149,8 @@ class ReceiptPage2State extends State<ReceiptPage2> {
 //                      var dialog = popupListView.dialog(context, optionsList, "Choose Organization");
                       var organisations = new FindOrganisations();
                       var orgDialog = organisations.dialog(context);
-
                       orgDialog.then((organisation) {
+                        setState(() => {});
                         debugPrint(organisation.name);
                       });
                     },