1 files changed, 117 insertions, 0 deletions
diff --git a/tests/auto/qml/qqmllistmodelworkerscript/data/listmodel_async_sort/ListModelSort.mjs b/tests/auto/qml/qqmllistmodelworkerscript/data/listmodel_async_sort/ListModelSort.mjs
new file mode 100644
index 0000000000..cfc1e1146f
--- /dev/null
+++ b/tests/auto/qml/qqmllistmodelworkerscript/data/listmodel_async_sort/ListModelSort.mjs
@@ -0,0 +1,117 @@
+/* Copyright 2020 Esri
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+//------------------------------------------------------------------------------
+
+export const OrderAscending = 0
+export const OrderDescending = 1
+
+//------------------------------------------------------------------------------
+
+export function sort(model, sortKey, descending, useMove) {
+
+    _sort(model, sortKey, descending, useMove);
+}
+
+//------------------------------------------------------------------------------
+
+function _sort(model, sortKey, descending, useMove) {
+    var lessThan =  descending ? 1 : -1;
+    var greaterThan = -lessThan;
+
+    var indices = [...new Array(model.count).keys()];
+
+    function getKeyValue(index) {
+        return model.get(index)[sortKey];
+    }
+
+    function compareKey(index1, index2) {
+        var value1 = getKeyValue(index1);
+        var value2 = getKeyValue(index2);
+
+        return (value1 < value2)
+                ? lessThan
+                : (value1 > value2)
+                  ? greaterThan
+                  : 0;
+    }
+
+    indices.sort(compareKey);
+
+
+    function compareFrom(i1, i2) {
+        return (i1.from < i2.from)
+                ? -1
+                : (i1.from > i2.from)
+                  ? 1
+                  : 0;
+    }
+
+    var swapIndices = indices.map((e, i) => { return { from: e, to: i }}).sort(compareFrom).map(e => e.to);
+
+    function clone(o) {
+        return JSON.parse(JSON.stringify(o));
+    }
+
+    function cloneSwap(a, b) {
+        var o = clone(model.get(a));
+        model.set(a, model.get(b));
+        model.set(b, o);
+    }
+
+    function moveSwap(a, b) {
+        if (a < b) {
+            model.move(a, b, 1);
+            model.move(b - 1, a, 1);
+        }
+        else if (a > b) {
+            model.move(b, a, 1);
+            model.move(a - 1, b, 1);
+        }
+    }
+
+
+    var swap = useMove ? moveSwap : cloneSwap;
+    var swapCount = 0;
+
+
+    for (var iFrom = 0; iFrom < swapIndices.length; iFrom++) {
+        var iTo = swapIndices[iFrom];
+
+        if (iFrom === iTo) {
+            continue;
+        }
+
+        do {
+            swap(iFrom, iTo);
+
+            var t = swapIndices[iFrom];
+            swapIndices[iFrom] = swapIndices[iTo]
+            swapIndices[iTo] = t;
+
+            iTo = swapIndices[iFrom];
+
+            swapCount++;
+        }
+        while (iFrom !== iTo);
+    }
+
+}
+
+//------------------------------------------------------------------------------
+
+
+