From f87c7c55261f938b8c7df2bd178cce713364568b Mon Sep 17 00:00:00 2001
From: Yari Polla <skilvingr@gmail.com>
Date: Tue, 14 Mar 2023 01:21:37 +0100
Subject: [PATCH] homescreens/halcyon: switch page when trying to move out of
 the grids

---
 .../mobileshell/qml/components/GridView.qml   | 45 +++++++++++++++++++
 .../package/contents/ui/FavoritesView.qml     |  5 +++
 .../package/contents/ui/HomeScreen.qml        | 12 +++++
 3 files changed, 62 insertions(+)

diff --git a/components/mobileshell/qml/components/GridView.qml b/components/mobileshell/qml/components/GridView.qml
index 8fc6de85..62077f87 100644
--- a/components/mobileshell/qml/components/GridView.qml
+++ b/components/mobileshell/qml/components/GridView.qml
@@ -13,6 +13,51 @@ GridView {
     highlightFollowsCurrentItem: true
     highlight: highlightComponent
 
+    /** These function are called when the user tries to move the highlight outside the allowed surface by using arrow keys.
+      * Useful to override the default behaviour of GridView (Pac-Man effect).
+      */
+    property var topEdgeCallback: null
+    property var bottomEdgeCallback: null
+    property var leftEdgeCallback: null
+    property var rightEdgeCallback: null
+
+    Keys.onPressed: event => {
+                        if (!currentItem) {
+                            return;
+                        }
+
+                        switch(event.key){
+                            case Qt.Key_Left: {
+                                if (currentItem.x === 0
+                                    && leftEdgeCallback) {
+                                    leftEdgeCallback();
+                                }
+                                break;
+                            }
+                            case Qt.Key_Right: {
+                                if (indexAt(currentItem.x + cellWidth, currentItem.y) === -1
+                                    && rightEdgeCallback) {
+                                    rightEdgeCallback();
+                                }
+                                break;
+                            }
+                            case Qt.Key_Up: {
+                                if (currentItem.y === 0
+                                    && topEdgeCallback) {
+                                    topEdgeCallback();
+                                }
+                                break;
+                            }
+                            case Qt.Key_Down: {
+                                if (indexAt(currentItem.x, currentItem.y + cellHeight) === -1
+                                    && bottomEdgeCallback) {
+                                    bottomEdgeCallback();
+                                }
+                                break;
+                            }
+                        }
+                    }
+
     onActiveFocusChanged: {
         if (!activeFocus) {
             currentIndex = -1;
diff --git a/containments/homescreens/halcyon/package/contents/ui/FavoritesView.qml b/containments/homescreens/halcyon/package/contents/ui/FavoritesView.qml
index 5917535f..10c44f15 100644
--- a/containments/homescreens/halcyon/package/contents/ui/FavoritesView.qml
+++ b/containments/homescreens/halcyon/package/contents/ui/FavoritesView.qml
@@ -34,6 +34,7 @@ Item {
     property bool folderShown: false
     
     signal openConfigureRequested()
+    signal pageForwardRequested();
     
     Connections {
         target: parent
@@ -87,6 +88,10 @@ Item {
         transform: Translate { x: favoritesGrid.translateX }
         opacity: 1 - openFolderProgress
         visible: opacity !== 0
+
+        rightEdgeCallback: () => {
+                               pageForwardRequested();
+                           }
     }
  
     FolderGrid {
diff --git a/containments/homescreens/halcyon/package/contents/ui/HomeScreen.qml b/containments/homescreens/halcyon/package/contents/ui/HomeScreen.qml
index d4b1eb5c..dfa05ec2 100644
--- a/containments/homescreens/halcyon/package/contents/ui/HomeScreen.qml
+++ b/containments/homescreens/halcyon/package/contents/ui/HomeScreen.qml
@@ -93,6 +93,12 @@ Item {
                 searchWidget: root.searchWidget
                 interactive: root.interactive
                 onOpenConfigureRequested: root.openConfigure()
+
+                onPageForwardRequested: {
+                    swipeView.setCurrentIndex(1);
+                    swipeView.focusChild();
+                    resetHighlight();
+                }
             }
         }
 
@@ -111,6 +117,12 @@ Item {
                 interactive: root.interactive
                 leftMargin: horizontalMargin
                 rightMargin: horizontalMargin
+
+                leftEdgeCallback: () => {
+                                      swipeView.setCurrentIndex(0);
+                                      swipeView.focusChild();
+                                      currentIndex = -1;
+                                  }
             }
         }
     }