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feat: add input mode, allow null ipaddress, refactor code for better readbility.

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This commit is contained in:
rabbitism
2023-02-25 13:22:57 +08:00
parent 6d63cd566e
commit 9b28cd07b8
3 changed files with 321 additions and 257 deletions
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10
demo/Ursa.Demo/Pages/IPv4BoxDemo.axaml
View File

@@ -17,19 +17,27 @@
Name="format"
Margin="0,0,0,50"
Content="Show Leading Zeroes" />
<TextBlock Classes="" Text="Normal" />
<u:IPv4Box
Name="box"
Width="200"
ShowLeadingZero="{Binding #format.IsChecked}" />
<TextBlock Text="IP: " />
<TextBlock Text="{Binding #box.IPAddress}" />
<TextBlock Classes="" Text="Fast input" />
<u:IPv4Box
Width="200"
InputMode="Fast"
ShowLeadingZero="{Binding #format.IsChecked}" />
<TextBlock Classes="" Text="Binding From Source" />
<RepeatButton Command="{Binding ChangeAddress}" Content="Random" />
<u:IPv4Box
Width="200"
IPAddress="{Binding Address}"
ShowLeadingZero="{Binding #format.IsChecked}" />
<TextBlock Classes="" Text="Disabled" />
<u:IPv4Box Width="200" IsEnabled="False" />
</StackPanel>
</UserControl>

2
src/Ursa.Themes.Semi/Themes/Light/IPv4Box.axaml
View File

@@ -4,7 +4,7 @@
<SolidColorBrush x:Key="IPv4BoxPointeroverBackground" Opacity="0.09" Color="#FF2E3238" />
<SolidColorBrush x:Key="IPv4BoxPressedBackground" Opacity="0.13" Color="#FF2E3238" />
<SolidColorBrush x:Key="IPv4BoxBorderBrush" Color="Transparent" />
<SolidColorBrush x:Key="IPv4BoxDisabledBackground" Opacity="0.04" Color="#2E3238" />
<SolidColorBrush x:Key="IPv4BoxDisabledBackground" Opacity="0.02" Color="#2E3238" />
<SolidColorBrush x:Key="IPv4BoxFocusBorderBrush" Color="#FF0077FA" />
<SolidColorBrush x:Key="IPv4BoxSelectionBrush" Color="#FF0077FA" />
<SolidColorBrush x:Key="IPv4BoxSelectionForeground" Color="White" />

566
src/Ursa/Controls/IPv4Box.cs
View File

@@ -13,6 +13,13 @@ using Avalonia.Media.TextFormatting;
namespace Ursa.Controls;
public enum IPv4BoxInputMode
{
Normal,
// In fast mode, automatically move to next session after 3 digits input.
Fast,
}
[TemplatePart(PART_FirstTextPresenter, typeof(TextPresenter))]
[TemplatePart(PART_SecondTextPresenter, typeof(TextPresenter))]
[TemplatePart(PART_ThirdTextPresenter, typeof(TextPresenter))]
@@ -27,17 +34,15 @@ public class IPv4Box: TemplatedControl
private TextPresenter? _secondText;
private TextPresenter? _thirdText;
private TextPresenter? _fourthText;
private byte _firstByte;
private byte _secondByte;
private byte _thirdByte;
private byte _fourthByte;
private byte? _firstByte;
private byte? _secondByte;
private byte? _thirdByte;
private byte? _fourthByte;
private readonly TextPresenter?[] _presenters = new TextPresenter?[4];
private byte[] _bytes = new byte[4];
private TextPresenter? _currentActivePresenter;
public static readonly StyledProperty<IPAddress?> IPAddressProperty = AvaloniaProperty.Register<IPv4Box, IPAddress?>(
nameof(IPAddress));
public IPAddress? IPAddress
{
get => GetValue(IPAddressProperty);
@@ -54,7 +59,6 @@ public class IPv4Box: TemplatedControl
public static readonly StyledProperty<IBrush?> SelectionBrushProperty =
TextBox.SelectionBrushProperty.AddOwner<IPv4Box>();
public IBrush? SelectionBrush
{
get => GetValue(SelectionBrushProperty);
@@ -63,7 +67,6 @@ public class IPv4Box: TemplatedControl
public static readonly StyledProperty<IBrush?> SelectionForegroundBrushProperty =
TextBox.SelectionForegroundBrushProperty.AddOwner<IPv4Box>();
public IBrush? SelectionForegroundBrush
{
get => GetValue(SelectionForegroundBrushProperty);
@@ -71,7 +74,6 @@ public class IPv4Box: TemplatedControl
}
public static readonly StyledProperty<IBrush?> CaretBrushProperty = TextBox.CaretBrushProperty.AddOwner<IPv4Box>();
public IBrush? CaretBrush
{
get => GetValue(CaretBrushProperty);
@@ -80,18 +82,241 @@ public class IPv4Box: TemplatedControl
public static readonly StyledProperty<bool> ShowLeadingZeroProperty = AvaloniaProperty.Register<IPv4Box, bool>(
nameof(ShowLeadingZero));
public bool ShowLeadingZero
{
get => GetValue(ShowLeadingZeroProperty);
set => SetValue(ShowLeadingZeroProperty, value);
}
public static readonly StyledProperty<IPv4BoxInputMode> InputModeProperty = AvaloniaProperty.Register<IPv4Box, IPv4BoxInputMode>(
nameof(InputMode));
public IPv4BoxInputMode InputMode
{
get => GetValue(InputModeProperty);
set => SetValue(InputModeProperty, value);
}
static IPv4Box()
{
ShowLeadingZeroProperty.Changed.AddClassHandler<IPv4Box>((o, e) => o.OnFormatChange(e));
IPAddressProperty.Changed.AddClassHandler<IPv4Box>((o, e) => o.OnIPChanged(e));
}
#region Overrides
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
_firstText = e.NameScope.Find<TextPresenter>(PART_FirstTextPresenter);
_secondText = e.NameScope.Find<TextPresenter>(PART_SecondTextPresenter);
_thirdText = e.NameScope.Find<TextPresenter>(PART_ThirdTextPresenter);
_fourthText = e.NameScope.Find<TextPresenter>(PART_FourthTextPresenter);
_presenters[0] = _firstText;
_presenters[1] = _secondText;
_presenters[2] = _thirdText;
_presenters[3] = _fourthText;
}
protected override void OnKeyDown(KeyEventArgs e)
{
if (_currentActivePresenter is null) return;
var keymap = AvaloniaLocator.Current.GetRequiredService<PlatformHotkeyConfiguration>();
bool Match(List<KeyGesture> gestures) => gestures.Any(g => g.Matches(e));
if (e.Key == Key.Enter)
{
ParseBytes(ShowLeadingZero);
SetIPAddress();
return;
}
if (Match(keymap.SelectAll))
{
_currentActivePresenter.SelectionStart = 0;
_currentActivePresenter.SelectionEnd = _currentActivePresenter.Text?.Length ?? 0;
return;
}
if (e.Key == Key.Tab)
{
_currentActivePresenter?.HideCaret();
_currentActivePresenter.ClearSelection();
if (Equals(_currentActivePresenter, _fourthText))
{
base.OnKeyDown(e);
return;
}
MoveToNextPresenter(_currentActivePresenter, true);
_currentActivePresenter?.ShowCaret();
e.Handled = true;
}
else if (e.Key == Key.OemPeriod || e.Key == Key.Decimal)
{
if (string.IsNullOrEmpty(_currentActivePresenter.Text))
{
base.OnKeyDown(e);
return;
}
_currentActivePresenter?.HideCaret();
_currentActivePresenter.ClearSelection();
if (Equals(_currentActivePresenter, _fourthText))
{
base.OnKeyDown(e);
return;
}
MoveToNextPresenter(_currentActivePresenter, false);
_currentActivePresenter?.ShowCaret();
_currentActivePresenter.MoveCaretToStart();
e.Handled = true;
}
else if (e.Key == Key.Back)
{
DeleteImplementation(_currentActivePresenter);
}
else if (e.Key == Key.Right )
{
if (_currentActivePresenter != null)
{
if (_currentActivePresenter.CaretIndex >= _currentActivePresenter.Text?.Length)
{
_currentActivePresenter.HideCaret();
MoveToNextPresenter(_currentActivePresenter, false);
_currentActivePresenter.SelectionStart = 0;
_currentActivePresenter.SelectionEnd = 0;
_currentActivePresenter?.ShowCaret();
}
else
{
_currentActivePresenter.ClearSelection();
_currentActivePresenter.CaretIndex++;
}
}
}
else if (e.Key == Key.Left)
{
if (_currentActivePresenter != null)
{
if (_currentActivePresenter.CaretIndex == 0)
{
_currentActivePresenter.HideCaret();
bool success = MoveToPreviousTextPresenter(_currentActivePresenter);
_currentActivePresenter.ShowCaret();
if (success)
{
_currentActivePresenter.MoveCaretToEnd();
}
}
else
{
_currentActivePresenter.ClearSelection();
_currentActivePresenter.CaretIndex--;
}
}
}
else
{
base.OnKeyDown(e);
}
}
protected override void OnTextInput(TextInputEventArgs e)
{
if (e.Handled) return;
string? s = e.Text;
if (string.IsNullOrEmpty(s)) return;
if (!char.IsNumber(s[0])) return;
if (_currentActivePresenter != null)
{
int index = _currentActivePresenter.CaretIndex;
string? oldText = _currentActivePresenter.Text;
if (oldText is null)
{
_currentActivePresenter.Text = s;
_currentActivePresenter.MoveCaretHorizontal();
}
else
{
_currentActivePresenter.DeleteSelection();
_currentActivePresenter.ClearSelection();
oldText = _currentActivePresenter.Text;
string? newText = string.IsNullOrEmpty(oldText)
? s
: oldText?.Substring(0, index) + s + oldText?.Substring(Math.Min(index, oldText.Length));
if (newText.Length > 3)
{
newText = newText.Substring(0, 3);
}
_currentActivePresenter.Text = newText;
_currentActivePresenter.MoveCaretHorizontal();
if (_currentActivePresenter.CaretIndex == 3 && InputMode == IPv4BoxInputMode.Fast)
{
_currentActivePresenter.HideCaret();
bool success = MoveToNextPresenter(_currentActivePresenter, true);
_currentActivePresenter.ShowCaret();
if (success)
{
_currentActivePresenter.SelectAll();
_currentActivePresenter.MoveCaretToStart();
}
}
}
}
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
var source = e.Source;
PointerPoint? clickInfo = e.GetCurrentPoint(this);
Point position = e.GetPosition(_firstText);
foreach (var presenter in _presenters)
{
if (presenter?.Bounds.Contains(position)??false)
{
if (e.ClickCount == 1)
{
presenter?.ShowCaret();
_currentActivePresenter = presenter;
var caretPosition = position.WithX(position.X - presenter?.Bounds.X ?? 0);
presenter?.MoveCaretToPoint(caretPosition);
}
else if (e.ClickCount == 2)
{
presenter.SelectAll();
presenter.MoveCaretToEnd();
}
}
else
{
presenter?.HideCaret();
presenter.ClearSelection();
}
}
Debug.WriteLine(_currentActivePresenter?.Name);
base.OnPointerPressed(e);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
foreach (var pre in _presenters)
{
pre?.HideCaret();
pre.ClearSelection();
}
_currentActivePresenter = null;
ParseBytes(ShowLeadingZero);
SetIPAddress();
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
_currentActivePresenter = _firstText;
if (_currentActivePresenter is null)
{
base.OnGotFocus(e);
return;
}
_currentActivePresenter.ShowCaret();
_currentActivePresenter.MoveCaretToStart();
base.OnGotFocus(e);
}
#endregion
private void OnFormatChange(AvaloniaPropertyChangedEventArgs arg)
{
@@ -125,247 +350,28 @@ public class IPv4Box: TemplatedControl
}
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
_firstText = e.NameScope.Find<TextPresenter>(PART_FirstTextPresenter);
_secondText = e.NameScope.Find<TextPresenter>(PART_SecondTextPresenter);
_thirdText = e.NameScope.Find<TextPresenter>(PART_ThirdTextPresenter);
_fourthText = e.NameScope.Find<TextPresenter>(PART_FourthTextPresenter);
_presenters[0] = _firstText;
_presenters[1] = _secondText;
_presenters[2] = _thirdText;
_presenters[3] = _fourthText;
}
protected override void OnKeyDown(KeyEventArgs e)
{
if (_currentActivePresenter is null) return;
var keymap = AvaloniaLocator.Current.GetRequiredService<PlatformHotkeyConfiguration>();
bool Match(List<KeyGesture> gestures) => gestures.Any(g => g.Matches(e));
if (e.Key == Key.Enter)
{
ParseBytes(ShowLeadingZero);
SetIPAddress();
return;
}
if (Match(keymap.SelectAll))
{
_currentActivePresenter.SelectionStart = 0;
_currentActivePresenter.SelectionEnd = _currentActivePresenter.Text?.Length ?? 0;
return;
}
if (e.Key == Key.Tab || e.Key == Key.OemPeriod || e.Key == Key.Decimal)
{
_currentActivePresenter?.HideCaret();
ClearSelection(_currentActivePresenter);
if (Equals(_currentActivePresenter, _fourthText))
{
base.OnKeyDown(e);
return;
}
MoveToNextPresenter(_currentActivePresenter, true);
_currentActivePresenter?.ShowCaret();
e.Handled = true;
}
else if (e.Key == Key.Back)
{
DeleteImplementation(_currentActivePresenter);
}
else if (e.Key == Key.Right )
{
if (_currentActivePresenter != null)
{
if (_currentActivePresenter.CaretIndex >= _currentActivePresenter.Text?.Length)
{
_currentActivePresenter.HideCaret();
MoveToNextPresenter(_currentActivePresenter, false);
_currentActivePresenter.SelectionStart = 0;
_currentActivePresenter.SelectionEnd = 0;
_currentActivePresenter?.ShowCaret();
}
else
{
ClearSelection(_currentActivePresenter);
_currentActivePresenter.CaretIndex++;
}
}
}
else if (e.Key == Key.Left)
{
if (_currentActivePresenter != null)
{
if (_currentActivePresenter.CaretIndex == 0)
{
_currentActivePresenter.HideCaret();
bool success = MoveToPreviousTextPresenter(_currentActivePresenter);
_currentActivePresenter.ShowCaret();
if (success)
{
_currentActivePresenter.CaretIndex = _currentActivePresenter.Text?.Length ?? 0;
}
}
else
{
ClearSelection(_currentActivePresenter);
_currentActivePresenter.CaretIndex--;
}
}
}
else
{
base.OnKeyDown(e);
}
}
private void SelectAll(TextPresenter? presenter)
{
if(presenter is null) return;
presenter.SelectionStart = 0;
presenter.SelectionEnd = presenter.Text?.Length+1??0;
}
protected override void OnTextInput(TextInputEventArgs e)
{
if (e.Handled) return;
string? s = e.Text;
if (string.IsNullOrEmpty(s)) return;
if (!char.IsNumber(s[0])) return;
if (_currentActivePresenter != null)
{
int index = _currentActivePresenter.CaretIndex;
string? oldText = _currentActivePresenter.Text;
if (oldText is null)
{
_currentActivePresenter.Text = s;
_currentActivePresenter.MoveCaretHorizontal();
}
else
{
DeleteSelection(_currentActivePresenter);
ClearSelection(_currentActivePresenter);
oldText = _currentActivePresenter.Text;
string? newText = string.IsNullOrEmpty(oldText)
? s
: (oldText?.Substring(0, index) + s + oldText?.Substring(index));
if (newText.Length > 3)
{
newText = newText.Substring(0, 3);
}
_currentActivePresenter.Text = newText;
_currentActivePresenter.MoveCaretHorizontal();
if (_currentActivePresenter.CaretIndex == 3)
{
_currentActivePresenter.HideCaret();
bool success = MoveToNextPresenter(_currentActivePresenter, true);
_currentActivePresenter.ShowCaret();
if (success)
{
SelectAll(_currentActivePresenter);
_currentActivePresenter.CaretIndex = 0;
}
}
}
}
}
private void DeleteSelection(TextPresenter? presenter)
{
if (presenter is null) return;
int selectionStart = presenter.SelectionStart;
int selectionEnd = presenter.SelectionEnd;
if (selectionStart != selectionEnd)
{
var start = Math.Min(selectionStart, selectionEnd);
var end = Math.Max(selectionStart, selectionEnd);
var text = presenter.Text;
string newText = text is null
? string.Empty
: text.Substring(0, start) + text.Substring(Math.Min(end, text.Length));
presenter.Text = newText;
presenter.MoveCaretToTextPosition(start);
}
}
private void ClearSelection(TextPresenter? presenter)
{
if(presenter is null) return;
presenter.SelectionStart = 0;
presenter.SelectionEnd = 0;
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
var source = e.Source;
PointerPoint? clickInfo = e.GetCurrentPoint(this);
Point position = e.GetPosition(_firstText);
foreach (var presenter in _presenters)
{
if (presenter?.Bounds.Contains(position)??false)
{
if (e.ClickCount == 1)
{
presenter?.ShowCaret();
_currentActivePresenter = presenter;
var caretPosition = position.WithX(position.X - presenter.Bounds.X);
presenter?.MoveCaretToPoint(caretPosition);
}
else if (e.ClickCount == 2)
{
SelectAll(presenter);
presenter.CaretIndex = presenter.Text?.Length??0;
}
}
else
{
presenter?.HideCaret();
ClearSelection(presenter);
}
}
Debug.WriteLine(_currentActivePresenter?.Name);
base.OnPointerPressed(e);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
foreach (var pre in _presenters)
{
pre?.HideCaret();
ClearSelection(pre);
}
_currentActivePresenter = null;
ParseBytes(ShowLeadingZero);
SetIPAddress();
}
private void ParseBytes(bool showLeadingZero)
{
string format = showLeadingZero ? "D3" : "";
if (string.IsNullOrEmpty(_firstText?.Text) && string.IsNullOrEmpty(_secondText?.Text) && string.IsNullOrEmpty(_thirdText?.Text) && string.IsNullOrEmpty(_fourthText?.Text))
{
_firstByte = null;
_secondByte = null;
_thirdByte = null;
_fourthByte = null;
return;
}
_firstByte = byte.TryParse(_firstText?.Text, out byte b1) ? b1 : (byte)0;
_secondByte = byte.TryParse(_secondText?.Text, out byte b2) ? b2 : (byte)0;
_thirdByte = byte.TryParse(_thirdText?.Text, out byte b3) ? b3 : (byte)0;
_fourthByte = byte.TryParse(_fourthText?.Text, out byte b4) ? b4 : (byte)0;
if (_firstText != null) _firstText.Text = _firstByte.ToString(format);
if (_secondText != null) _secondText.Text = _secondByte.ToString(format);
if (_thirdText != null) _thirdText.Text = _thirdByte.ToString(format);
if (_fourthText != null) _fourthText.Text = _fourthByte.ToString(format);
if (_firstText != null) _firstText.Text = _firstByte?.ToString(format);
if (_secondText != null) _secondText.Text = _secondByte?.ToString(format);
if (_thirdText != null) _thirdText.Text = _thirdByte?.ToString(format);
if (_fourthText != null) _fourthText.Text = _fourthByte?.ToString(format);
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
_currentActivePresenter = _firstText;
if (_currentActivePresenter is null)
{
base.OnGotFocus(e);
return;
}
_currentActivePresenter.ShowCaret();
_currentActivePresenter.CaretIndex = 0;
base.OnGotFocus(e);
}
private bool MoveToNextPresenter(TextPresenter? presenter, bool selectAllAfterMove)
{
@@ -374,7 +380,7 @@ public class IPv4Box: TemplatedControl
if (Equals(presenter, _firstText)) _currentActivePresenter = _secondText;
else if (Equals(presenter, _secondText)) _currentActivePresenter = _thirdText;
else if (Equals(presenter, _thirdText)) _currentActivePresenter = _fourthText;
if(selectAllAfterMove) SelectAll(_currentActivePresenter);
if(selectAllAfterMove) _currentActivePresenter.SelectAll();
return true;
}
@@ -399,11 +405,16 @@ public class IPv4Box: TemplatedControl
private void SetIPAddress()
{
if (_firstByte is null && _secondByte is null && _thirdByte is null && _fourthByte is null)
{
IPAddress = null;
return;
}
long address = 0;
address += _firstByte;
address += _secondByte << 8;
address += _thirdByte << 16;
address += (long)_fourthByte << 24;
address += _firstByte??0;
address += (_secondByte??0) << 8;
address += (_thirdByte??0) << 16;
address += ((long?)_fourthByte ?? 0) << 24;
try
{
IPAddress = new IPAddress(address);
@@ -420,29 +431,74 @@ public class IPv4Box: TemplatedControl
var oldText = presenter.Text;
if (presenter.SelectionStart != presenter.SelectionEnd)
{
int start = presenter.SelectionStart;
int end = presenter.SelectionEnd;
string newText = oldText?.Substring(0, start) + oldText?.Substring(end);
presenter.Text = newText;
presenter.CaretIndex = start;
presenter.DeleteSelection();
presenter.ClearSelection();
}
else if (string.IsNullOrWhiteSpace(oldText))
else if (string.IsNullOrWhiteSpace(oldText) || presenter.CaretIndex == 0)
{
presenter.HideCaret();
MoveToPreviousTextPresenter(presenter);
if (_currentActivePresenter != null)
{
_currentActivePresenter.ShowCaret();
_currentActivePresenter.CaretIndex = _currentActivePresenter.Text?.Length ?? 0;
_currentActivePresenter.MoveCaretToEnd();
}
}
else
{
int index = presenter.CaretIndex;
if (index == 0) return;
string newText = oldText?.Substring(0, index - 1) + oldText?.Substring(Math.Min(index, oldText.Length));
presenter.MoveCaretHorizontal(LogicalDirection.Backward);
presenter.Text = newText;
}
}
}
public static class TextPresenterHelper
{
public static void MoveCaretToStart(this TextPresenter? presenter)
{
if (presenter is null) return;
presenter.MoveCaretToTextPosition(0);
}
public static void MoveCaretToEnd(this TextPresenter? presenter)
{
if(presenter is null) return;
presenter.MoveCaretToTextPosition(presenter.Text?.Length ?? 0);
}
public static void ClearSelection(this TextPresenter? presenter)
{
if (presenter is null) return;
presenter.SelectionStart = 0;
presenter.SelectionEnd = 0;
}
public static void SelectAll(this TextPresenter? presenter)
{
if(presenter is null) return;
if(presenter.Text is null) return;
presenter.SelectionStart = 0;
presenter.SelectionEnd = presenter.Text.Length;
}
public static void DeleteSelection(this TextPresenter? presenter)
{
if (presenter is null) return;
int selectionStart = presenter.SelectionStart;
int selectionEnd = presenter.SelectionEnd;
if (selectionStart != selectionEnd)
{
var start = Math.Min(selectionStart, selectionEnd);
var end = Math.Max(selectionStart, selectionEnd);
var text = presenter.Text;
string newText = text is null
? string.Empty
: text.Substring(0, start) + text.Substring(Math.Min(end, text.Length));
presenter.Text = newText;
presenter.MoveCaretToTextPosition(start);
}
}
}