homescreens/halcyon: implement keyboard arrow navigation

containments/homescreens/halcyon/package/contents/ui/FavoritesGrid.qml

@@ -75,6 +75,7 @@ MobileShell.GridView {
         contentItem: Clock {}
     }
     
+    Keys.onReturnPressed: currentItem.appDelegate.launch()
     model: DelegateModel {
         id: visualModel
         model: Halcyon.PinnedModel
@@ -82,6 +83,7 @@ MobileShell.GridView {
         delegate: Item {
             id: delegateRoot
             property int visualIndex: DelegateModel.itemsIndex
+            property alias appDelegate: appDelegate
 
             width: root.cellWidth
             height: root.cellHeight

containments/homescreens/halcyon/package/contents/ui/FavoritesView.qml

@@ -18,6 +18,12 @@ Item {
     id: root
     layer.enabled: true
     
+    onFocusChanged: {
+        if (focus) {
+            favoritesGrid.forceActiveFocus();
+        }
+    }
+
     required property bool interactive
     required property var searchWidget
     
@@ -49,6 +55,10 @@ Item {
         openFolderAnim.restart()
     }
 
+    function resetHighlight() {
+        favoritesGrid.currentIndex = -1;
+    }
+    
     FavoritesGrid {
         id: favoritesGrid
         

containments/homescreens/halcyon/package/contents/ui/GridAppList.qml

@@ -22,6 +22,16 @@ MobileShell.GridView {
     cacheBuffer: cellHeight * 20 // 10 rows above and below
     reuseItems: true
     
+    Controls.ScrollBar.vertical: Controls.ScrollBar {
+        policy: Controls.ScrollBar.AlwaysOn
+    }
+
+    onFocusChanged: {
+        if (focus) {
+            forceActiveFocus();
+        }
+    }
+
     // ensure items aren't visible out of bounds
     layer.enabled: true
     
@@ -69,6 +79,7 @@ MobileShell.GridView {
         font.weight: Font.Bold
     }
     
+    Keys.onReturnPressed: currentItem.launchApp()
     delegate: GridAppDelegate {
         id: delegate
         

containments/homescreens/halcyon/package/contents/ui/HomeScreen.qml

@@ -30,6 +30,7 @@ Item {
     
     function triggerHomescreen() {
         swipeView.setCurrentIndex(0);
+        swipeView.focusChild();
         favoritesView.closeFolder();
         favoritesView.goToBeginning();
         gridAppList.goToBeginning();
@@ -42,6 +43,16 @@ Item {
         }
     }
 
+    Connections {
+        target: MobileShellState.HomeScreenControls
+
+        function onHomeScreenVisibleChanged(){
+            if (MobileShellState.HomeScreenControls.homeScreenVisible) {
+                swipeView.focusChild();
+            }
+        }
+    }
+
     QQC2.SwipeView {
         id: swipeView
         opacity: 1 - searchWidget.openFactor
@@ -53,12 +64,27 @@ Item {
         anchors.leftMargin: root.leftMargin
         anchors.rightMargin: root.rightMargin
 
+        function focusChild() {
+            currentItem.childFocus = true;
+        }
+
+        onCurrentIndexChanged: focusChild()
+
         Item {
             height: swipeView.height
             width: swipeView.width
 
+
+            property alias childFocus: favoritesView.focus
+
             // open wallpaper menu when held on click
             TapHandler {
+                onPressedChanged: {
+                    if (pressed) {
+                        favoritesView.resetHighlight();
+                    }
+                }
+
                 onLongPressed: root.openConfigure()
             }
             
@@ -71,16 +97,17 @@ Item {
             }
         }
 
-        QQC2.ScrollView {
+        Item {
             width: swipeView.width
             height: swipeView.height
 
-            // disable horizontal scrollbar
-            QQC2.ScrollBar.horizontal: QQC2.ScrollBar { policy: QQC2.ScrollBar.AlwaysOff }
+            property alias childFocus: gridAppList.focus
 
             GridAppList {
                 id: gridAppList
                 
+                anchors.fill: parent
+
                 property int horizontalMargin: Math.round(swipeView.width  * 0.05)
                 interactive: root.interactive
                 leftMargin: horizontalMargin