StocQt demo: Bugfixes and improvements

    - Update the list of NASDAQ-100 companies
    - Add code for handling invalid entries (stock IDs)
    - Simplify top-level navigation logic. The app now
      opens in list view with no stock pre-selected.
    - Fix math for calculating change percentages

Change-Id: I6aaab45f5a391f9636123c0ddca73656fab79916
Task-number: QTBUG-50651
Reviewed-by: Mika Salmela <mika.salmela@theqtcompany.com>
Reviewed-by: Venugopal Shivashankar <venugopal.shivashankar@digia.com>

1 files changed, 14 insertions, 6 deletions

diff --git a/examples/quick/demos/stocqt/content/StockListView.qml b/examples/quick/demos/stocqt/content/StockListView.qml
index d1f735fde3..59f36b42cc 100644
--- a/examples/quick/demos/stocqt/content/StockListView.qml
+++ b/examples/quick/demos/stocqt/content/StockListView.qml
@@ -62,6 +62,7 @@ Rectangle {
         focus: true
         snapMode: ListView.SnapToItem
         model: StockListModel{}
+        currentIndex: -1 // Don't pre-select any item
 
         function requestUrl(stockId) {
             var endDate = new Date(""); //today
@@ -95,7 +96,7 @@ Rectangle {
             xhr.onreadystatechange = function() {
                 if (xhr.readyState === XMLHttpRequest.LOADING || xhr.readyState === XMLHttpRequest.DONE) {
                     var records = xhr.responseText.split('\n');
-                    if (records.length > 0) {
+                    if (records.length > 0 && xhr.status == 200) {
                         var r = records[1].split(',');
                         var today = parseFloat(r[4]);
                         model.setProperty(index, "value", today.toFixed(2));
@@ -113,6 +114,9 @@ Rectangle {
                             model.setProperty(index, "changePercentage", "+" + changePercentage.toFixed(2) + "%");
                         else
                             model.setProperty(index, "changePercentage", changePercentage.toFixed(2) + "%");
+                    } else {
+                        var unknown = "n/a";
+                        model.set(index, {"value": unknown, "change": unknown, "changePercentage": unknown});
                     }
                 }
             }
@@ -120,9 +124,10 @@ Rectangle {
         }
 
         onCurrentIndexChanged: {
-            mainRect.listViewActive = 0;
-            root.currentStockId = model.get(currentIndex).stockId;
-            root.currentStockName = model.get(currentIndex).name;
+            if (currentItem) {
+                root.currentStockId = model.get(currentIndex).stockId;
+                root.currentStockName = model.get(currentIndex).name;
+            }
         }
 
         delegate: Rectangle {
@@ -132,7 +137,10 @@ Rectangle {
             MouseArea {
                 anchors.fill: parent;
                 onClicked: {
-                    view.currentIndex = index;
+                    if (view.currentIndex == index)
+                        mainRect.currentIndex = 1;
+                    else
+                        view.currentIndex = index;
                 }
             }
 
@@ -243,7 +251,7 @@ Rectangle {
         }
 
         highlight: Rectangle {
-            width: parent.width
+            width: view.width
             color: "#eeeeee"
         }
     }