protected override void OnFocusLost(InputState state)
{
unbindInput();
Caret.ClearTransforms();
Caret.FadeOut(200);
if (state.Keyboard.Keys.Contains(Key.Enter))
{
Background.Colour = BackgroundUnfocused;
Background.ClearTransforms();
Background.FlashColour(BackgroundCommit, 400);
audio.Sample.Get(@"Keyboard/key-confirm")?.Play();
OnCommit?.Invoke(this, true);
}
else
{
Background.ClearTransforms();
Background.FadeColour(BackgroundUnfocused, 200, EasingTypes.OutExpo);
}
cursorAndLayout.Invalidate();
}
protected override bool OnKeyDown(InputState state, KeyDownEventArgs args)
{
if (!HasFocus)
{
return(false);
}
if (textInput?.ImeActive == true)
{
return(true);
}
if (args.Key >= Key.F1 && args.Key <= Key.F35)
{
return(false);
}
if (HandlePendingText(state))
{
return(true);
}
if (ReadOnly)
{
return(true);
}
if (state.Keyboard.AltPressed)
{
return(false);
}
switch (args.Key)
{
case Key.Tab:
return(base.OnKeyDown(state, args));
case Key.End:
moveSelection(text.Length, state.Keyboard.ShiftPressed);
return(true);
case Key.Home:
moveSelection(-text.Length, state.Keyboard.ShiftPressed);
return(true);
case Key.Left:
{
if (!HandleLeftRightArrows)
{
return(false);
}
if (selectionEnd == 0)
{
//we only clear if you aren't holding shift
if (!state.Keyboard.ShiftPressed)
{
resetSelection();
}
return(true);
}
int amount = 1;
if (state.Keyboard.ControlPressed)
{
int lastSpace = text.LastIndexOf(' ', Math.Max(0, selectionEnd - 2));
if (lastSpace >= 0)
{
//if you have something selected and shift is not held down
//A selection reset is required to select a word inside the current selection
if (!state.Keyboard.ShiftPressed)
{
resetSelection();
}
amount = selectionEnd - lastSpace - 1;
}
else
{
amount = selectionEnd;
}
}
moveSelection(-amount, state.Keyboard.ShiftPressed);
return(true);
}
case Key.Right:
{
if (!HandleLeftRightArrows)
{
return(false);
}
if (selectionEnd == text.Length)
{
if (!state.Keyboard.ShiftPressed)
{
resetSelection();
}
return(true);
}
int amount = 1;
if (state.Keyboard.ControlPressed)
{
int nextSpace = text.IndexOf(' ', selectionEnd + 1);
if (nextSpace >= 0)
{
if (!state.Keyboard.ShiftPressed)
{
resetSelection();
}
amount = nextSpace - selectionEnd;
}
else
{
amount = text.Length - selectionEnd;
}
}
moveSelection(amount, state.Keyboard.ShiftPressed);
return(true);
}
case Key.KeypadEnter:
case Key.Enter:
if (HasFocus)
{
if (ReleaseFocusOnCommit)
{
inputManager.ChangeFocus(null);
}
Background.Colour = ReleaseFocusOnCommit ? BackgroundUnfocused : BackgroundFocused;
Background.ClearTransforms();
Background.FlashColour(BackgroundCommit, 400);
audio.Sample.Get(@"Keyboard/key-confirm")?.Play();
OnCommit?.Invoke(this, true);
}
return(true);
case Key.Delete:
if (selectionLength == 0)
{
if (text.Length == selectionStart)
{
return(true);
}
if (state.Keyboard.ControlPressed)
{
int spacePos = selectionStart;
while (text[spacePos] == ' ' && spacePos < text.Length)
{
spacePos++;
}
spacePos = MathHelper.Clamp(text.IndexOf(' ', spacePos), 0, text.Length);
selectionEnd = spacePos;
if (selectionStart == 0 && spacePos == 0)
{
selectionEnd = text.Length;
}
if (selectionLength == 0)
{
return(true);
}
}
else
{
//we're deleting in front of the cursor, so move the cursor forward once first
selectionStart = selectionEnd = selectionStart + 1;
}
}
removeCharacterOrSelection();
return(true);
case Key.Back:
if (selectionLength == 0 && state.Keyboard.ControlPressed)
{
int spacePos = selectionLeft >= 2 ? Math.Max(0, text.LastIndexOf(' ', selectionLeft - 2) + 1) : 0;
selectionStart = spacePos;
}
removeCharacterOrSelection();
return(true);
}
if (state.Keyboard.ControlPressed)
{
//handling of function keys
switch (args.Key)
{
case Key.A:
selectionStart = 0;
selectionEnd = text.Length;
cursorAndLayout.Invalidate();
return(true);
case Key.C:
if (string.IsNullOrEmpty(SelectedText) || !AllowClipboardExport)
{
return(true);
}
clipboard?.SetText(SelectedText);
return(true);
case Key.X:
if (string.IsNullOrEmpty(SelectedText) || !AllowClipboardExport)
{
return(true);
}
clipboard?.SetText(SelectedText);
removeCharacterOrSelection();
return(true);
case Key.V:
//the text may get pasted into the hidden textbox, so we don't need any direct clipboard interaction here.
string pending = textInput?.GetPendingText();
if (string.IsNullOrEmpty(pending))
{
pending = clipboard?.GetText();
}
insertString(pending);
return(true);
}
return(false);
}
return(true);
}
protected override void UpdateAfterChildren()
{
base.UpdateAfterChildren();
//have to run this after children flow
cursorAndLayout.Refresh(delegate
{
Placeholder.TextSize = CalculatedTextSize;
textUpdateScheduler.Update();
Vector2 cursorPos = Vector2.Zero;
if (text?.Length > 0)
{
cursorPos.X = getPositionAt(selectionLeft);
}
float cursorPosEnd = getPositionAt(selectionEnd);
float cursorWidth = 2;
if (selectionLength > 0)
{
cursorWidth = getPositionAt(selectionRight) - cursorPos.X;
}
float cursorRelativePositionAxesInBox = (cursorPosEnd - textContainerPosX) / DrawWidth;
//we only want to reposition the view when the cursor reaches near the extremities.
if (cursorRelativePositionAxesInBox < 0.1 || cursorRelativePositionAxesInBox > 0.9)
{
textContainerPosX = cursorPosEnd - DrawWidth / 2 + LeftRightPadding * 2;
}
textContainerPosX = MathHelper.Clamp(textContainerPosX, 0, Math.Max(0, TextFlow.DrawWidth - DrawWidth + LeftRightPadding * 2));
TextContainer.MoveToX(LeftRightPadding - textContainerPosX, 300, EasingTypes.OutExpo);
if (HasFocus)
{
Caret.ClearTransforms();
Caret.MoveTo(cursorPos, 60, EasingTypes.Out);
Caret.ScaleTo(new Vector2(cursorWidth, 1), 60, EasingTypes.Out);
if (selectionLength > 0)
{
Caret.FadeTo(0.5f, 200, EasingTypes.Out);
Caret.FadeColour(new Color4(249, 90, 255, 255), 200, EasingTypes.Out);
}
else
{
Caret.FadeTo(0.7f, 200, EasingTypes.Out);
Caret.FadeColour(Color4.White, 200, EasingTypes.Out);
Caret.Transforms.Add(new TransformAlpha
{
StartValue = 0.7f,
EndValue = 0.4f,
StartTime = Time.Current,
EndTime = Time.Current + 500,
Easing = EasingTypes.InOutSine,
LoopCount = -1,
});
}
}
OnChange?.Invoke(this, textAtLastLayout != text);
if (textAtLastLayout.Length == 0 || text.Length == 0)
{
Placeholder.FadeTo(text.Length == 0 ? 1 : 0, 200);
}
textAtLastLayout = text;
return(cursorPos);
});
}