private void AddNewRow(DataRowViewModel dataRowViewModel)
{
var newRow = new DataRowView {
DataContext = dataRowViewModel, DataCellWidth = DataCellWidth
};
// Adjust header cells' width
var binding = new Binding("ActualWidth")
{
Source = newRow.PART_NameCell
};
PART_HeaderRow.PART_NameCell.SetBinding(WidthProperty, binding);
PART_MaxRow.PART_NameCell.SetBinding(WidthProperty, binding);
PART_MinRow.PART_NameCell.SetBinding(WidthProperty, binding);
// Add separator
PART_ItemsStack.Children.Add(new Separator());
// Add new row
PART_ItemsStack.Children.Add(newRow);
if (PART_AutoScrollCheckBox.IsChecked != null && (bool)PART_AutoScrollCheckBox.IsChecked)
{
PART_ScrollViewer.ScrollToBottom();
}
}
/// <summary>
/// Handles <see cref="GamePad.AxisDownEvent"/> when the drop down is open.
/// </summary>
private void OnGamePadAxisDown_DropDownOpen(GamePadDevice device, GamePadAxis axis, Single value, Boolean repeat, ref RoutedEventData data)
{
if (GamePad.UseAxisForDirectionalNavigation)
{
if (GamePad.DirectionalNavigationAxisX == axis || GamePad.DirectionalNavigationAxisY == axis)
{
var direction = device.GetJoystickDirectionFromAxis(axis);
switch (direction)
{
case GamePadJoystickDirection.Up:
MoveItemFocus(-1);
break;
case GamePadJoystickDirection.Down:
MoveItemFocus(1);
break;
case GamePadJoystickDirection.Left:
if (PART_ScrollViewer != null)
{
PART_ScrollViewer.HandleKeyScrolling(Key.Left, ModifierKeys.None, ref data);
}
break;
case GamePadJoystickDirection.Right:
if (PART_ScrollViewer != null)
{
PART_ScrollViewer.HandleKeyScrolling(Key.Right, ModifierKeys.None, ref data);
}
break;
}
data.Handled = true;
}
}
}
/// <summary>
/// Handles <see cref="GamePad.ButtonDownEvent"/> when the drop down is open.
/// </summary>
private void OnGamePadButtonDown_DropDownOpen(GamePadDevice device, GamePadButton button, Boolean repeat, ref RoutedEventData data)
{
if (GamePad.ConfirmButton == button)
{
SelectFocusedItem();
IsDropDownOpen = false;
data.Handled = true;
}
else if (GamePad.CancelButton == button)
{
IsDropDownOpen = false;
data.Handled = true;
}
else if (GamePad.TabButton == button)
{
PerformTabNavigation(Key.Tab, ModifierKeys.None);
data.Handled = true;
}
else if (GamePad.ShiftTabButton == button)
{
PerformTabNavigation(Key.Tab, ModifierKeys.Shift);
data.Handled = true;
}
else
{
if (!GamePad.UseAxisForDirectionalNavigation)
{
switch (button)
{
case GamePadButton.DPadUp:
MoveItemSelection(-1);
break;
case GamePadButton.DPadDown:
MoveItemSelection(1);
break;
case GamePadButton.DPadLeft:
if (PART_ScrollViewer != null)
{
PART_ScrollViewer.HandleKeyScrolling(Key.Left, ModifierKeys.None, ref data);
}
break;
case GamePadButton.DPadRight:
if (PART_ScrollViewer != null)
{
PART_ScrollViewer.HandleKeyScrolling(Key.Right, ModifierKeys.None, ref data);
}
break;
}
data.Handled = true;
}
}
}
/// <inheritdoc/>
protected override void OnGamePadButtonDown(GamePadDevice device, GamePadButton button, Boolean repeat, ref RoutedEventData data)
{
if (GamePad.ConfirmButton == button)
{
var listBoxItem = ItemsControlUtil.FindContainer <ListBoxItem>(this, data.OriginalSource);
if (listBoxItem != null)
{
HandleItemClicked(listBoxItem);
data.Handled = true;
}
}
else
{
if (!GamePad.UseAxisForDirectionalNavigation)
{
switch (button)
{
case GamePadButton.DPadLeft:
if (PART_ScrollViewer != null)
{
PART_ScrollViewer.HandleKeyScrolling(Key.Left, ModifierKeys.None, ref data);
}
data.Handled = true;
break;
case GamePadButton.DPadRight:
if (PART_ScrollViewer != null)
{
PART_ScrollViewer.HandleKeyScrolling(Key.Right, ModifierKeys.None, ref data);
}
data.Handled = true;
break;
case GamePadButton.DPadUp:
if (SelectionMode == SelectionMode.Single)
{
MoveSelectedItem(FocusNavigationDirection.Up);
}
data.Handled = true;
break;
case GamePadButton.DPadDown:
if (SelectionMode == SelectionMode.Single)
{
MoveSelectedItem(FocusNavigationDirection.Down);
}
data.Handled = true;
break;
}
}
}
base.OnGamePadButtonDown(device, button, repeat, ref data);
}
private void opacityAnim_Completed(object sender, EventArgs e)
{
PART_ContentScreenshot.Opacity = 0;
PART_ContentScreenshot.Source = null;
PART_Content.Opacity = 1;
PART_Content.IsHitTestVisible = true;
PART_ScrollViewer.ScrollToHorizontalPixel(0);
PART_ScrollViewer.ScrollToVerticalPixel(0);
}
/// <summary>
/// Handles <see cref="GamePad.ButtonDownEvent"/> when the drop down is open.
/// </summary>
private void OnGamePadButtonDown_DropDownOpen(GamePadDevice device, GamePadButton button, Boolean repeat, RoutedEventData data)
{
if (GamePad.ConfirmButton == button)
{
SelectFocusedItem();
IsDropDownOpen = false;
data.Handled = true;
}
else if (GamePad.CancelButton == button)
{
IsDropDownOpen = false;
data.Handled = true;
}
else if (GamePad.TabButton == button)
{
PerformTabNavigation(Key.Tab, ModifierKeys.None);
data.Handled = true;
}
else if (GamePad.ShiftTabButton == button)
{
PerformTabNavigation(Key.Tab, ModifierKeys.Shift);
data.Handled = true;
}
else
{
switch (button)
{
case GamePadButton.LeftStickUp:
MoveItemFocus(-1);
data.Handled = true;
break;
case GamePadButton.LeftStickDown:
MoveItemFocus(1);
data.Handled = true;
break;
case GamePadButton.LeftStickLeft:
PART_ScrollViewer?.LineLeft();
data.Handled = true;
break;
case GamePadButton.LeftStickRight:
PART_ScrollViewer?.LineRight();
data.Handled = true;
break;
}
}
}
private void OnCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.Action == NotifyCollectionChangedAction.Add)
{
foreach (Message item in e.NewItems)
{
PART_MessageStackPanel.Children.Add(new MessageCard
{
Message = item.Text,
Author = item.Author,
Date = item.Date,
HeadUri = item.HeadUri
});
}
PART_ScrollViewer.ScrollToEnd(); // Upexpected: The ScrollToEnd() method will trigger the IsArrivedTop property change, and cause the LoadPreviousMessages() method to be called.
}
}
/// <inheritdoc/>
protected override void OnGamePadButtonDown(GamePadDevice device, GamePadButton button, Boolean repeat, RoutedEventData data)
{
if (GamePad.ConfirmButton == button)
{
var listBoxItem = ItemsControlUtil.FindContainer <ListBoxItem>(this, data.OriginalSource);
if (listBoxItem != null)
{
HandleItemClicked(listBoxItem);
data.Handled = true;
}
}
else
{
switch (button)
{
case GamePadButton.LeftStickLeft:
PART_ScrollViewer?.LineLeft();
data.Handled = true;
break;
case GamePadButton.LeftStickRight:
PART_ScrollViewer?.LineRight();
data.Handled = true;
break;
case GamePadButton.LeftStickUp:
if (SelectionMode == SelectionMode.Single)
{
MoveSelectedItem(FocusNavigationDirection.Up);
}
data.Handled = true;
break;
case GamePadButton.LeftStickDown:
if (SelectionMode == SelectionMode.Single)
{
MoveSelectedItem(FocusNavigationDirection.Down);
}
data.Handled = true;
break;
}
}
base.OnGamePadButtonDown(device, button, repeat, data);
}
/// <inheritdoc/>
protected override void OnGamePadAxisDown(GamePadDevice device, GamePadAxis axis, Single value, Boolean repeat, ref RoutedEventData data)
{
if (GamePad.UseAxisForDirectionalNavigation && (axis == GamePad.DirectionalNavigationAxisX || axis == GamePad.DirectionalNavigationAxisY))
{
var direction = device.GetJoystickDirectionFromAxis(axis);
switch (direction)
{
case GamePadJoystickDirection.Left:
if (PART_ScrollViewer != null)
{
PART_ScrollViewer.HandleKeyScrolling(Key.Left, ModifierKeys.None, ref data);
}
break;
case GamePadJoystickDirection.Right:
if (PART_ScrollViewer != null)
{
PART_ScrollViewer.HandleKeyScrolling(Key.Right, ModifierKeys.None, ref data);
}
break;
case GamePadJoystickDirection.Up:
if (SelectionMode == SelectionMode.Single)
{
MoveSelectedItem(FocusNavigationDirection.Up);
}
break;
case GamePadJoystickDirection.Down:
if (SelectionMode == SelectionMode.Single)
{
MoveSelectedItem(FocusNavigationDirection.Down);
}
break;
}
data.Handled = true;
}
base.OnGamePadAxisDown(device, axis, value, repeat, ref data);
}
/// <inheritdoc/>
protected override void OnKeyDown(KeyboardDevice device, Key key, ModifierKeys modifiers, RoutedEventData data)
{
switch (key)
{
case Key.Space:
case Key.Return:
if (key == Key.Return && !GetValue <Boolean>(KeyboardNavigation.AcceptsReturnProperty))
{
break;
}
var listBoxItem = ItemsControlUtil.FindContainer <ListBoxItem>(this, data.OriginalSource);
if (listBoxItem != null)
{
HandleItemClicked(listBoxItem);
data.Handled = true;
}
break;
case Key.Left:
PART_ScrollViewer?.LineLeft();
data.Handled = true;
break;
case Key.Right:
PART_ScrollViewer?.LineRight();
data.Handled = true;
break;
case Key.Up:
if (SelectionMode == SelectionMode.Single)
{
MoveSelectedItem(FocusNavigationDirection.Up, modifiers);
}
data.Handled = true;
break;
case Key.Down:
if (SelectionMode == SelectionMode.Single)
{
MoveSelectedItem(FocusNavigationDirection.Down, modifiers);
}
data.Handled = true;
break;
case Key.Home:
var firstItem = ItemsControlUtil.GetFirstItem <ListBoxItem>(this, PART_ScrollViewer);
if (firstItem != null && firstItem.Focus())
{
HandleItemClickedAndScrollIntoView(firstItem);
}
data.Handled = true;
break;
case Key.End:
var lastItem = ItemsControlUtil.GetLastItem <ListBoxItem>(this, PART_ScrollViewer);
if (lastItem != null && lastItem.Focus())
{
HandleItemClickedAndScrollIntoView(lastItem);
}
data.Handled = true;
break;
case Key.PageUp:
var pageUpTarget = ItemsControlUtil.GetPageUpNext <ListBoxItem>(this, PART_ScrollViewer);
if (pageUpTarget != null && pageUpTarget.Focus())
{
HandleItemClickedAndScrollIntoView(pageUpTarget, false);
}
data.Handled = true;
break;
case Key.PageDown:
var pageDownTarget = ItemsControlUtil.GetPageDownNext <ListBoxItem>(this, PART_ScrollViewer);
if (pageDownTarget != null && pageDownTarget.Focus())
{
HandleItemClickedAndScrollIntoView(pageDownTarget, false);
}
data.Handled = true;
break;
}
base.OnKeyDown(device, key, modifiers, data);
}
/// <summary>
/// Handles <see cref="Keyboard.KeyDownEvent"/> when the drop down is open.
/// </summary>
private void OnKeyDown_DropDownOpen(KeyboardDevice device, Key key, ModifierKeys modifiers, RoutedEventData data)
{
switch (key)
{
case Key.Tab:
PerformTabNavigation(key, modifiers);
data.Handled = true;
break;
case Key.Escape:
IsDropDownOpen = false;
data.Handled = true;
break;
case Key.Return:
SelectFocusedItem();
IsDropDownOpen = false;
data.Handled = true;
break;
case Key.Up:
MoveItemFocus(-1);
data.Handled = true;
break;
case Key.Down:
MoveItemFocus(1);
data.Handled = true;
break;
case Key.PageUp:
var pageUpTarget = ItemsControlUtil.GetPageUpNext <ComboBoxItem>(this, PART_ScrollViewer);
if (pageUpTarget != null && pageUpTarget.Focus())
{
ItemsControlUtil.ScrollItemIntoView <ComboBoxItem>(this, PART_ScrollViewer, pageUpTarget, false);
}
data.Handled = true;
break;
case Key.PageDown:
var pageDownTarget = ItemsControlUtil.GetPageDownNext <ComboBoxItem>(this, PART_ScrollViewer);
if (pageDownTarget != null && pageDownTarget.Focus())
{
ItemsControlUtil.ScrollItemIntoView <ComboBoxItem>(this, PART_ScrollViewer, pageDownTarget, false);
}
data.Handled = true;
break;
case Key.Home:
var firstItem = ItemsControlUtil.GetFirstItem <ComboBoxItem>(this, PART_ScrollViewer);
if (firstItem != null && firstItem.Focus())
{
ItemsControlUtil.ScrollItemIntoView <ComboBoxItem>(this, PART_ScrollViewer, firstItem);
}
data.Handled = true;
break;
case Key.End:
var lastItem = ItemsControlUtil.GetLastItem <ComboBoxItem>(this, PART_ScrollViewer);
if (lastItem != null && lastItem.Focus())
{
ItemsControlUtil.ScrollItemIntoView <ComboBoxItem>(this, PART_ScrollViewer, lastItem);
}
data.Handled = true;
break;
case Key.Left:
PART_ScrollViewer?.LineLeft();
data.Handled = true;
break;
case Key.Right:
PART_ScrollViewer?.LineRight();
data.Handled = true;
break;
}
}
private void ListView_MouseUp(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
PART_ScrollViewer.ScrollToHome();
}
private void PART_HorizontalScrollBar_Scroll(object sender, ScrollEventArgs e)
{
PART_ScrollViewer.ScrollToHorizontalPixel(e.NewValue * PART_ScrollViewer.ScrollableWidth);
}
private void PART_VerticalScrollBar_Scroll(object sender, ScrollEventArgs e)
{
PART_ScrollViewer.ScrollToVerticalPixel(e.NewValue * PART_ScrollViewer.ScrollableHeight);
}
