fix<*>: PerMonitorDpiAwareV2 not working for ContextMenus on multi-displays with difference DPIs

src/Views/Widgets/CommitChanges.xaml.cs

@@ -229,8 +229,8 @@ namespace SourceGit.Views.Widgets {
             });
         }
 
-        private void OpenChangeContextMenu(Models.Change change) {
+        private void OpenChangeContextMenu(Models.Change change, UIElement placement) {
-            var menu = new ContextMenu();
+            var menu = new ContextMenu() { PlacementTarget = placement };
             var path = change.Path;
 
             if (change.Index != Models.Change.Status.Deleted) {
@@ -329,7 +329,7 @@ namespace SourceGit.Views.Widgets {
             var node = item.DataContext as ChangeNode;
             if (node == null || node.IsFolder) return;
 
-            OpenChangeContextMenu(node.Change);
+            OpenChangeContextMenu(node.Change, item);
             e.Handled = true;
         }
 
@@ -340,7 +340,7 @@ namespace SourceGit.Views.Widgets {
             var change = row.Item as Models.Change;
             if (change == null) return;
 
-            OpenChangeContextMenu(change);
+            OpenChangeContextMenu(change, row);
             e.Handled = true;
         }
 

src/Views/Widgets/CommitDetail.xaml.cs

@@ -123,7 +123,7 @@ namespace SourceGit.Views.Widgets {
             }
 
             var selectedCount = changeList.SelectedItems.Count;
-            var menu = new ContextMenu();
+            var menu = new ContextMenu() { PlacementTarget = row };
             if (selectedCount == 1) {
                 var change = changeList.SelectedItems[0] as Models.Change;
                 if (change == null) return;

src/Views/Widgets/Dashboard.xaml.cs

@@ -614,7 +614,7 @@ namespace SourceGit.Views.Widgets {
             var node = item.DataContext as BranchNode;
             if (node == null || node.Type == BranchNodeType.Folder) return;
 
-            var menu = new ContextMenu();
+            var menu = new ContextMenu() { PlacementTarget = item };
             if (node.Type == BranchNodeType.Remote) {
                 FillRemoteContextMenu(menu, node.Data as Models.Remote);
             } else {
@@ -1049,7 +1049,7 @@ namespace SourceGit.Views.Widgets {
                 ev.Handled = true;
             };
 
-            var menu = new ContextMenu();
+            var menu = new ContextMenu() { PlacementTarget = sender as UIElement };
             menu.Items.Add(createBranch);
             menu.Items.Add(new Separator());
             menu.Items.Add(pushTag);
@@ -1096,7 +1096,7 @@ namespace SourceGit.Views.Widgets {
                 ev.Handled = true;
             };
 
-            var menu = new ContextMenu();
+            var menu = new ContextMenu() { PlacementTarget = sender as UIElement };
             menu.Items.Add(copy);
             menu.Items.Add(rm);
             menu.IsOpen = true;
@@ -1158,7 +1158,7 @@ namespace SourceGit.Views.Widgets {
                 ev.Handled = true;
             };
 
-            var menu = new ContextMenu();
+            var menu = new ContextMenu() { PlacementTarget = sender as UIElement };
             menu.Items.Add(edit);
             menu.Items.Add(unlink);
             menu.Items.Add(new Separator());

src/Views/Widgets/DiffViewer.xaml.cs

@@ -475,7 +475,7 @@ namespace SourceGit.Views.Widgets {
             var grid = sender as DataGrid;
             if (grid == null) return;
 
-            var menu = new ContextMenu();
+            var menu = new ContextMenu() { PlacementTarget = grid };
 
             var copyIcon = new Path();
             copyIcon.Data = FindResource("Icon.Copy") as Geometry;

src/Views/Widgets/Histories.xaml.cs

@@ -248,7 +248,7 @@ namespace SourceGit.Views.Widgets {
             if (current == null) return;
 
             var merged = commit.IsMerged;
-            var menu = new ContextMenu();
+            var menu = new ContextMenu() { PlacementTarget = row };
             var tags = new List<string>();
 
             // Decorators

src/Views/Widgets/PageTabBar.xaml.cs

@@ -309,7 +309,7 @@ namespace SourceGit.Views.Widgets {
             var tab = (sender as ListBoxItem).DataContext as Tab;
             if (tab == null) return;
 
-            var menu = new ContextMenu();
+            var menu = new ContextMenu() { PlacementTarget = sender as UIElement };
 
             var close = new MenuItem();
             close.Header = App.Text("PageTabBar.Tab.Close");

src/Views/Widgets/RevisionFiles.xaml.cs

@@ -196,7 +196,7 @@ namespace SourceGit.Views.Widgets {
             var grid = sender as DataGrid;
             if (grid == null) return;
 
-            var menu = new ContextMenu();
+            var menu = new ContextMenu() { PlacementTarget = grid };
 
             var copyIcon = new System.Windows.Shapes.Path();
             copyIcon.Data = FindResource("Icon.Copy") as Geometry;
@@ -328,7 +328,7 @@ namespace SourceGit.Views.Widgets {
                 ev.Handled = true;
             };
 
-            var menu = new ContextMenu();
+            var menu = new ContextMenu() { PlacementTarget = item };
             menu.Items.Add(history);
             menu.Items.Add(blame);
             menu.Items.Add(explore);

src/Views/Widgets/Stashes.xaml.cs

@@ -67,7 +67,7 @@ namespace SourceGit.Views.Widgets {
             delete.Header = App.Text("StashCM.Drop");
             delete.Click += (o, e) => new Popups.StashDropConfirm(repo, stash.Name, stash.Message).Show();
 
-            var menu = new ContextMenu();
+            var menu = new ContextMenu() { PlacementTarget = sender as UIElement };
             menu.Items.Add(apply);
             menu.Items.Add(pop);
             menu.Items.Add(delete);

src/Views/Widgets/WorkingCopyChanges.xaml.cs

@@ -868,7 +868,7 @@ namespace SourceGit.Views.Widgets {
                 GetChangesFromNode(o as ChangeNode, changes);
             }
 
-            var menu = new ContextMenu();
+            var menu = new ContextMenu() { PlacementTarget = sender as UIElement };
             if (IsUnstaged) {
                 OpenUnstagedContextMenuByNodes(menu, nodes, changes);
             } else {
@@ -900,7 +900,7 @@ namespace SourceGit.Views.Widgets {
                 }
             }
 
-            var menu = new ContextMenu();
+            var menu = new ContextMenu() { PlacementTarget = row };
             if (IsUnstaged) {
                 OpenUnstagedContextMenuByChanges(menu, changes);
             } else {