CLOUDSTACK-7520: [UI] keep advanced search parameters visible after search has been run.

- Preserve the advanced search parameters, so that when the advanced search box is shown again,
it is populated with the values selected/entered previously, unless they have navigated away from the search results page,
or applied any additional filters/search parameters.

Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
Signed-off-by: Rajani Karuturi <rajanikaruturi@gmail.com>

ui/scripts/ui/widgets/listView.js

@@ -1854,6 +1854,7 @@
         //basic search
         var basicSearch = function() {
             $listView.removeData('advSearch');
+            advancedSearchData = {};
 
             $listView.data('page', 1);
             loadBody(
@@ -1930,6 +1931,8 @@
             );
         };
 
+        var advancedSearchData = {};
+
         var closeAdvancedSearch = function() {
             $listView.find('.advanced-search .form-container:visible').remove();
         };
@@ -1941,6 +1944,11 @@
                 return false;
             }
 
+            // Setup advanced search default values, when existing data is present
+            $.each(listViewData.advSearchFields, function(fieldID, field) {
+                field.defaultValue = advancedSearchData[fieldID];
+            });
+
             var form = cloudStack.dialog.createForm({
                 noDialog: true,
                 form: {
@@ -1949,6 +1957,7 @@
                 },
                 after: function(args) {
                     advancedSearch(args);
+                    advancedSearchData = args.data;
                     $listView.find('.button.search#basic_search').siblings('.search-bar').find('input').val(''); //clear basic search input field to avoid confusion of search result
                     closeAdvancedSearch();
                 }