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Use is operator instead of as + null check (#1911)

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Rose 2023-05-26 15:34:02 -04:00 • committed by GitHub
parent b895f5bcea
commit 788dfc7726
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8 changed files with 27 additions and 56 deletions
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33
src/Calculator/Common/KeyboardShortcutManager.cs
View file

@ -483,14 +483,9 @@ namespace CalculatorApp
{
// Writer lock for the static maps
lock (s_keyboardShortcutMapLockMutex)
{
Control control = (target as ButtonBase);
if (control == null)
{
// Handling Ctrl+E shortcut for Date Calc, target would be NavigationView^ in that case
control = (target as MUXC.NavigationView);
}
Control control = (target as ButtonBase) ?? (Control)(target as MUXC.NavigationView);
int viewId = Utilities.GetWindowId();
@ -580,7 +575,7 @@ namespace CalculatorApp
private static bool CanNavigateModeByShortcut(MUXC.NavigationView navView, object nvi
, ApplicationViewModel vm, ViewMode toMode)
{
if (nvi != null && nvi is NavCategory navCategory)
if (nvi is NavCategory navCategory)
{
return navCategory.IsEnabled
&& navView.Visibility == Visibility.Visible
@ -601,21 +596,18 @@ namespace CalculatorApp
{
if (itemRef.Target is MUXC.NavigationView item)
{
var navView = item;
var menuItems = ((List<object>)navView.MenuItemsSource);
var menuItems = ((List<object>)item.MenuItemsSource);
if (menuItems != null)
{
var vm = (navView.DataContext as ApplicationViewModel);
if (null != vm)
if (item.DataContext is ApplicationViewModel vm)
{
ViewMode realToMode = toMode.HasValue ? toMode.Value : NavCategoryStates.GetViewModeForVirtualKey(((MyVirtualKey)key));
ViewMode realToMode = toMode ?? NavCategoryStates.GetViewModeForVirtualKey(((MyVirtualKey)key));
var nvi = menuItems[NavCategoryStates.GetFlatIndex(realToMode)];
if (CanNavigateModeByShortcut(navView, nvi, vm, realToMode))
if (CanNavigateModeByShortcut(item, nvi, vm, realToMode))
{
vm.Mode = realToMode;
navView.SelectedItem = nvi;
item.SelectedItem = nvi;
}
}
}
@ -685,14 +677,13 @@ namespace CalculatorApp
{
if (currentHonorShortcuts)
{
var myVirtualKey = key;
var lookupMap = GetCurrentKeyDictionary(isControlKeyPressed, isShiftKeyPressed, isAltKeyPressed);
if (lookupMap == null)
{
return;
}
var buttons = EqualRange(lookupMap, (MyVirtualKey)myVirtualKey);
var buttons = EqualRange(lookupMap, (MyVirtualKey)key);
if (!buttons.Any())
{
return;
@ -701,7 +692,7 @@ namespace CalculatorApp
KeyboardShortcutManagerLocals.RunFirstEnabledButtonCommand(buttons);
// Ctrl+C and Ctrl+V shifts focus to some button because of which enter doesn't work after copy/paste. So don't shift focus if Ctrl+C or Ctrl+V
// is pressed. When drop down is open, pressing escape shifts focus to clear button. So dont's shift focus if drop down is open. Ctrl+Insert is
// is pressed. When drop down is open, pressing escape shifts focus to clear button. So don't shift focus if drop down is open. Ctrl+Insert is
// equivalent to Ctrl+C and Shift+Insert is equivalent to Ctrl+V
//var currentIsDropDownOpen = s_IsDropDownOpen.find(viewId);
if (!s_IsDropDownOpen.TryGetValue(viewId, out var currentIsDropDownOpen) || !currentIsDropDownOpen)
@ -778,13 +769,13 @@ namespace CalculatorApp
{
if (altPressed)
{
if (!shiftKeyPressed)
if (shiftKeyPressed)
{
return s_VirtualKeyAltChordsForButtons[viewId];
return null;
}
else
{
return null;
return s_VirtualKeyAltChordsForButtons[viewId];
}
}
else

3
src/Calculator/Common/ValidatingConverters.cs
View file

@ -44,8 +44,6 @@ namespace CalculatorApp
{
// The value to be valid has to be a boxed int32 value
// extract that value and ensure it is valid, ie >= 0
if (value != null)
{
if (value is Windows.Foundation.IPropertyValue box && box.Type == Windows.Foundation.PropertyType.Int32)
{
int index = box.GetInt32();
@ -54,7 +52,6 @@ namespace CalculatorApp
return value;
}
}
}
// The value is not valid therefore stop the binding right here
return Windows.UI.Xaml.DependencyProperty.UnsetValue;
}

3
src/Calculator/Converters/ExpressionItemTemplateSelector.cs
View file

@ -16,8 +16,7 @@ namespace CalculatorApp
{
protected override DataTemplate SelectTemplateCore(object item, DependencyObject container)
{
DisplayExpressionToken token = (item as DisplayExpressionToken);
if (token != null)
if (item is DisplayExpressionToken token)
{
CalculatorApp.ViewModel.Common.TokenType type = token.Type;

3
src/Calculator/Views/Calculator.xaml.cs
View file

@ -814,8 +814,7 @@ namespace CalculatorApp
private void DockPanelTapped(object sender, TappedRoutedEventArgs e)
{
int index = DockPivot.SelectedIndex;
if (index == 1 && !IsProgrammer)
if (DockPivot.SelectedIndex == 1 && !IsProgrammer)
{
SetChildAsMemory();
}

2
src/Calculator/Views/CalculatorProgrammerDisplayPanel.xaml.cs
View file

@ -36,7 +36,7 @@ namespace CalculatorApp
{
get
{
Debug.Assert(DataContext as ViewModel.StandardCalculatorViewModel != null, "static_cast result must NOT be null");
Debug.Assert(DataContext is ViewModel.StandardCalculatorViewModel, "static_cast result must NOT be null");
return DataContext as ViewModel.StandardCalculatorViewModel;
}
}

12
src/Calculator/Views/GraphingCalculator/GraphingCalculator.xaml.cs
View file

@ -518,7 +518,7 @@ namespace CalculatorApp
private void GraphingControl_LosingFocus(UIElement sender, LosingFocusEventArgs args)
{
if (!(args.NewFocusedElement is FrameworkElement newFocusElement) || newFocusElement.Name == null)
if (!(args.NewFocusedElement is FrameworkElement))
{
// Because clicking on the swap chain panel will try to move focus to a control that can't actually take focus
// we will get a null destination. So we are going to try and cancel that request.
@ -534,15 +534,7 @@ namespace CalculatorApp
private void GraphingControl_GraphViewChangedEvent(object sender, GraphViewChangedReason reason)
{
if (reason == GraphViewChangedReason.Manipulation)
{
IsManualAdjustment = true;
}
else
{
IsManualAdjustment = false;
}
IsManualAdjustment = (reason == GraphViewChangedReason.Manipulation);
UpdateGraphAutomationName();
var announcement = CalculatorAnnouncement.GetGraphViewChangedAnnouncement(GraphControlAutomationName);

14
src/Calculator/Views/HistoryList.xaml.cs
View file

@ -48,11 +48,8 @@ namespace CalculatorApp
private void ListView_ItemClick(object sender, ItemClickEventArgs e)
{
HistoryViewModel historyVM = (DataContext as HistoryViewModel);
HistoryItemViewModel clickedItem = (e.ClickedItem as HistoryItemViewModel);
// When the user clears the history list in the overlay view and presses enter, the clickedItem is nullptr
if (clickedItem != null && historyVM != null)
if (e.ClickedItem is HistoryItemViewModel clickedItem && DataContext is HistoryViewModel historyVM)
{
historyVM.ShowItem(clickedItem);
}
@ -60,8 +57,7 @@ namespace CalculatorApp
private void OnCopyMenuItemClicked(object sender, RoutedEventArgs e)
{
var listViewItem = HistoryContextMenu.Target;
var itemViewModel = (HistoryListView.ItemFromContainer(listViewItem) as HistoryItemViewModel);
if (itemViewModel != null)
if (HistoryListView.ItemFromContainer(listViewItem) is HistoryItemViewModel itemViewModel)
{
CopyPasteManager.CopyToClipboard(itemViewModel.Result);
}
@ -69,16 +65,14 @@ namespace CalculatorApp
private void OnDeleteMenuItemClicked(object sender, RoutedEventArgs e)
{
var listViewItem = HistoryContextMenu.Target;
var itemViewModel = (HistoryListView.ItemFromContainer(listViewItem) as HistoryItemViewModel);
if (itemViewModel != null)
if (HistoryListView.ItemFromContainer(listViewItem) is HistoryItemViewModel itemViewModel)
{
Model.DeleteItem(itemViewModel);
}
}
private void OnDeleteSwipeInvoked(MUXC.SwipeItem sender, MUXC.SwipeItemInvokedEventArgs e)
{
var swipedItem = (e.SwipeControl.DataContext as HistoryItemViewModel);
if (swipedItem != null)
if (e.SwipeControl.DataContext is HistoryItemViewModel swipedItem)
{
Model.DeleteItem(swipedItem);
}

3
src/Calculator/Views/MainPage.xaml.cs
View file

@ -368,8 +368,7 @@ namespace CalculatorApp
return;
}
var item = (e.SelectedItemContainer as MUXC.NavigationViewItem);
if (item != null)
if (e.SelectedItemContainer is MUXC.NavigationViewItem item)
{
Model.Mode = (ViewMode)item.Tag;
}