[ui] tab to focus search bar + click on empty area to loose focus

meshroom/ui/qml/Utils/SortFilterDelegateModel.qml

@@ -9,7 +9,10 @@ import QtQuick.Controls 2.3
  * This is useful if the value is not directly accessible from the model and needs
  * some extra logic.
  *
- * Regarding filtering, any type of value can be used as 'filterValue' (variant).
+ * Regarding filtering, each filter is defined with a role to filter on and a value to match.
+ * Filters can be accumulated in a 2D-array, which is evaluated with the following rules: 
+ * - on the 2nd dimension we map respectFilter and reduce with logical OR
+ * - on the 1st dimension we map respectFilter and reduce with logical AND.
  * Filtering behavior can also be overridden by redefining the respectFilter function.
  *
  * Based on http://doc.qt.io/qt-5/qtquick-tutorials-dynamicview-dynamicview4-example.html
@@ -19,7 +22,7 @@ DelegateModel {
 
     property string sortRole: ""                /// the role to use for sorting
     property int sortOrder: Qt.AscendingOrder   /// the sorting order
-    property var filters: []
+    property var filters: []                    /// filter format: {role: "roleName", value: "filteringValue"}
 
     onSortRoleChanged: invalidateSort()
     onSortOrderChanged: invalidateSort()
@@ -95,6 +98,7 @@ DelegateModel {
         }
     }
 
+    /// Apply respectFilter mapping and logical AND/OR reduction on filters
     function respectFilters(item) {
         let cond = (filter => respectFilter(modelData(item, filter.role), filter.value));
         return filters.every(x => Array.isArray(x) ? x.some(cond) : cond(x));