/
Button.Internal.cs
executable file
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Button.Internal.cs
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using System;
using System.ComponentModel;
using Tizen.NUI.BaseComponents;
using Tizen.NUI.Components.Extension;
using Tizen.NUI.Accessibility; // To use AccessibilityManager
namespace Tizen.NUI.Components
{
public partial class Button
{
private ImageView overlayImage;
private TextLabel buttonText;
private ImageView buttonIcon;
private EventHandler<StateChangedEventArgs> stateChangeHandler;
private bool isPressed = false;
private bool styleApplied = false;
/// <summary>
/// The ButtonExtension instance that is injected by ButtonStyle.
/// </summary>
[EditorBrowsable(EditorBrowsableState.Never)]
protected ButtonExtension Extension { get; set; }
/// <summary>
/// Creates Button's text part.
/// </summary>
/// <return>The created Button's text part.</return>
[EditorBrowsable(EditorBrowsableState.Never)]
protected virtual TextLabel CreateText()
{
return new TextLabel
{
PositionUsesPivotPoint = true,
ParentOrigin = NUI.ParentOrigin.Center,
PivotPoint = NUI.PivotPoint.Center,
WidthResizePolicy = ResizePolicyType.FillToParent,
HeightResizePolicy = ResizePolicyType.FillToParent,
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center
};
}
/// <summary>
/// Creates Button's icon part.
/// </summary>
/// <return>The created Button's icon part.</return>
[EditorBrowsable(EditorBrowsableState.Never)]
protected virtual ImageView CreateIcon()
{
return new ImageView
{
PositionUsesPivotPoint = true,
ParentOrigin = NUI.ParentOrigin.Center,
PivotPoint = NUI.PivotPoint.Center
};
}
/// <summary>
/// Creates Button's overlay image part.
/// </summary>
/// <return>The created Button's overlay image part.</return>
[EditorBrowsable(EditorBrowsableState.Never)]
protected virtual ImageView CreateOverlayImage()
{
return new ImageView
{
PositionUsesPivotPoint = true,
ParentOrigin = NUI.ParentOrigin.Center,
PivotPoint = NUI.PivotPoint.Center,
WidthResizePolicy = ResizePolicyType.FillToParent,
HeightResizePolicy = ResizePolicyType.FillToParent
};
}
/// <summary>
/// Called when the Button is Clicked by a user
/// </summary>
/// <param name="eventArgs">The click information.</param>
[EditorBrowsable(EditorBrowsableState.Never)]
protected virtual void OnClicked(ClickedEventArgs eventArgs)
{
}
/// <summary>
/// Get Button style.
/// </summary>
/// <returns>The default button style.</returns>
/// <since_tizen> 8 </since_tizen>
protected override ViewStyle CreateViewStyle()
{
return new ButtonStyle();
}
/// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
[EditorBrowsable(EditorBrowsableState.Never)]
protected override void OnUpdate()
{
base.OnUpdate();
UpdateUIContent();
Extension?.OnRelayout(this);
}
/// <inheritdoc/>
[EditorBrowsable(EditorBrowsableState.Never)]
protected override bool HandleControlStateOnTouch(Touch touch)
{
if (!IsEnabled || null == touch)
{
return false;
}
PointStateType state = touch.GetState(0);
switch (state)
{
case PointStateType.Down:
isPressed = true;
Extension?.SetTouchInfo(touch);
UpdateState();
return true;
case PointStateType.Interrupted:
isPressed = false;
UpdateState();
return true;
case PointStateType.Up:
{
if (!isPressed)
{
return true;
}
isPressed = false;
if (IsSelectable)
{
Extension?.SetTouchInfo(touch);
IsSelected = !IsSelected;
}
else
{
Extension?.SetTouchInfo(touch);
UpdateState();
}
ClickedEventArgs eventArgs = new ClickedEventArgs();
OnClickedInternal(eventArgs);
return true;
}
default:
break;
}
return base.HandleControlStateOnTouch(touch);
}
/// <summary>
/// Update Button State.
/// </summary>
/// <since_tizen> 6 </since_tizen>
/// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
[EditorBrowsable(EditorBrowsableState.Never)]
protected void UpdateState()
{
if (!styleApplied) return;
ControlState sourceState = ControlState;
ControlState targetState;
// Normal, Disabled
targetState = IsEnabled ? ControlState.Normal : ControlState.Disabled;
// Selected, DisabledSelected
if (IsSelected) targetState += ControlState.Selected;
// Pressed, PressedSelected
if (isPressed) targetState += ControlState.Pressed;
// Focused, FocusedPressed, FocusedPressedSelected, DisabledFocused, DisabledSelectedFocused
if (IsFocused) targetState += ControlState.Focused;
if (sourceState != targetState)
{
ControlState = targetState;
OnUpdate();
StateChangedEventArgs e = new StateChangedEventArgs
{
PreviousState = ControlStatesExtension.FromControlStateClass(sourceState),
CurrentState = ControlStatesExtension.FromControlStateClass(targetState)
};
stateChangeHandler?.Invoke(this, e);
Extension?.OnControlStateChanged(this, new ControlStateChangedEventArgs(sourceState, targetState));
}
}
/// <summary>
/// Measure text, it can be override.
/// </summary>
/// <since_tizen> 6 </since_tizen>
/// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
[EditorBrowsable(EditorBrowsableState.Never)]
protected virtual void MeasureText()
{
if (buttonIcon == null || buttonText == null)
{
return;
}
buttonText.WidthResizePolicy = ResizePolicyType.Fixed;
buttonText.HeightResizePolicy = ResizePolicyType.Fixed;
var textPadding = TextPadding;
int textPaddingStart = textPadding.Start;
int textPaddingEnd = textPadding.End;
int textPaddingTop = textPadding.Top;
int textPaddingBottom = textPadding.Bottom;
var iconPadding = IconPadding;
int iconPaddingStart = iconPadding.Start;
int iconPaddingEnd = iconPadding.End;
int iconPaddingTop = iconPadding.Top;
int iconPaddingBottom = iconPadding.Bottom;
if (IconRelativeOrientation == IconOrientation.Top || IconRelativeOrientation == IconOrientation.Bottom)
{
buttonText.SizeWidth = SizeWidth - textPaddingStart - textPaddingEnd;
buttonText.SizeHeight = SizeHeight - textPaddingTop - textPaddingBottom - iconPaddingTop - iconPaddingBottom - buttonIcon.SizeHeight;
}
else
{
buttonText.SizeWidth = SizeWidth - textPaddingStart - textPaddingEnd - iconPaddingStart - iconPaddingEnd - buttonIcon.SizeWidth;
buttonText.SizeHeight = SizeHeight - textPaddingTop - textPaddingBottom;
}
}
/// <summary>
/// Layout child, it can be override.
/// </summary>
/// <since_tizen> 6 </since_tizen>
/// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
[EditorBrowsable(EditorBrowsableState.Never)]
protected virtual void LayoutChild()
{
if (buttonIcon == null || buttonText == null)
{
return;
}
var textPadding = TextPadding;
int textPaddingStart = textPadding.Start;
int textPaddingEnd = textPadding.End;
int textPaddingTop = textPadding.Top;
int textPaddingBottom = textPadding.Bottom;
var iconPadding = IconPadding;
int iconPaddingStart = iconPadding.Start;
int iconPaddingEnd = iconPadding.End;
int iconPaddingTop = iconPadding.Top;
int iconPaddingBottom = iconPadding.Bottom;
switch (IconRelativeOrientation)
{
case IconOrientation.Top:
buttonIcon.PositionUsesPivotPoint = true;
buttonIcon.ParentOrigin = NUI.ParentOrigin.TopCenter;
buttonIcon.PivotPoint = NUI.PivotPoint.TopCenter;
buttonIcon.Position2D = new Position2D(0, iconPaddingTop);
buttonText.PositionUsesPivotPoint = true;
buttonText.ParentOrigin = NUI.ParentOrigin.BottomCenter;
buttonText.PivotPoint = NUI.PivotPoint.BottomCenter;
buttonText.Position2D = new Position2D(0, -textPaddingBottom);
break;
case IconOrientation.Bottom:
buttonIcon.PositionUsesPivotPoint = true;
buttonIcon.ParentOrigin = NUI.ParentOrigin.BottomCenter;
buttonIcon.PivotPoint = NUI.PivotPoint.BottomCenter;
buttonIcon.Position2D = new Position2D(0, -iconPaddingBottom);
buttonText.PositionUsesPivotPoint = true;
buttonText.ParentOrigin = NUI.ParentOrigin.TopCenter;
buttonText.PivotPoint = NUI.PivotPoint.TopCenter;
buttonText.Position2D = new Position2D(0, textPaddingTop);
break;
case IconOrientation.Left:
if (LayoutDirection == ViewLayoutDirectionType.LTR)
{
buttonIcon.PositionUsesPivotPoint = true;
buttonIcon.ParentOrigin = NUI.ParentOrigin.CenterLeft;
buttonIcon.PivotPoint = NUI.PivotPoint.CenterLeft;
buttonIcon.Position2D = new Position2D(iconPaddingStart, 0);
buttonText.PositionUsesPivotPoint = true;
buttonText.ParentOrigin = NUI.ParentOrigin.CenterRight;
buttonText.PivotPoint = NUI.PivotPoint.CenterRight;
buttonText.Position2D = new Position2D(-textPaddingEnd, 0);
}
else
{
buttonIcon.PositionUsesPivotPoint = true;
buttonIcon.ParentOrigin = NUI.ParentOrigin.CenterRight;
buttonIcon.PivotPoint = NUI.PivotPoint.CenterRight;
buttonIcon.Position2D = new Position2D(-iconPaddingStart, 0);
buttonText.PositionUsesPivotPoint = true;
buttonText.ParentOrigin = NUI.ParentOrigin.CenterLeft;
buttonText.PivotPoint = NUI.PivotPoint.CenterLeft;
buttonText.Position2D = new Position2D(textPaddingEnd, 0);
}
break;
case IconOrientation.Right:
if (LayoutDirection == ViewLayoutDirectionType.RTL)
{
buttonIcon.PositionUsesPivotPoint = true;
buttonIcon.ParentOrigin = NUI.ParentOrigin.CenterLeft;
buttonIcon.PivotPoint = NUI.PivotPoint.CenterLeft;
buttonIcon.Position2D = new Position2D(iconPaddingEnd, 0);
buttonText.PositionUsesPivotPoint = true;
buttonText.ParentOrigin = NUI.ParentOrigin.CenterRight;
buttonText.PivotPoint = NUI.PivotPoint.CenterRight;
buttonText.Position2D = new Position2D(-textPaddingStart, 0);
}
else
{
buttonIcon.PositionUsesPivotPoint = true;
buttonIcon.ParentOrigin = NUI.ParentOrigin.CenterRight;
buttonIcon.PivotPoint = NUI.PivotPoint.CenterRight;
buttonIcon.Position2D = new Position2D(-iconPaddingEnd, 0);
buttonText.PositionUsesPivotPoint = true;
buttonText.ParentOrigin = NUI.ParentOrigin.CenterLeft;
buttonText.PivotPoint = NUI.PivotPoint.CenterLeft;
buttonText.Position2D = new Position2D(textPaddingStart, 0);
}
break;
default:
break;
}
if (string.IsNullOrEmpty(buttonText.Text))
{
buttonIcon.ParentOrigin = NUI.ParentOrigin.Center;
buttonIcon.PivotPoint = NUI.PivotPoint.Center;
}
}
/// <summary>
/// Dispose Button and all children on it.
/// </summary>
/// <param name="type">Dispose type.</param>
/// <since_tizen> 6 </since_tizen>
protected override void Dispose(DisposeTypes type)
{
if (disposed)
{
return;
}
if (type == DisposeTypes.Explicit)
{
if (ThemeManager.CurrentProfile == ThemeManager.Profile.Mobile)
{
AccessibilityManager.Instance.DeleteAccessibilityAttribute(this);
}
Extension?.OnDispose(this);
if (buttonIcon != null)
{
Utility.Dispose(buttonIcon);
}
if (buttonText != null)
{
Utility.Dispose(buttonText);
}
if (overlayImage != null)
{
Utility.Dispose(overlayImage);
}
}
base.Dispose(type);
}
/// <inheritdoc/>
[EditorBrowsable(EditorBrowsableState.Never)]
protected override void OnControlStateChanged(ControlStateChangedEventArgs controlStateChangedInfo)
{
base.OnControlStateChanged(controlStateChangedInfo);
var stateEnabled = !controlStateChangedInfo.CurrentState.Contains(ControlState.Disabled);
if (IsEnabled != stateEnabled)
{
IsEnabled = stateEnabled;
}
var statePressed = controlStateChangedInfo.CurrentState.Contains(ControlState.Pressed);
if (isPressed != statePressed)
{
isPressed = statePressed;
}
}
/// <summary>
/// It is hijack by using protected, style copy problem when class inherited from Button.
/// </summary>
/// <since_tizen> 6 </since_tizen>
private void Initialize()
{
EnableControlStatePropagation = true;
UpdateState();
LayoutDirectionChanged += OnLayoutDirectionChanged;
if (ThemeManager.CurrentProfile == ThemeManager.Profile.Mobile)
{
AccessibilityManager.Instance.SetAccessibilityAttribute(this, AccessibilityManager.AccessibilityAttribute.Trait, "Button");
Feedback = true;
}
}
private void UpdateUIContent()
{
MeasureText();
LayoutChild();
Sensitive = IsEnabled;
}
private void OnLayoutDirectionChanged(object sender, LayoutDirectionChangedEventArgs e)
{
MeasureText();
LayoutChild();
}
private void OnClickedInternal(ClickedEventArgs eventArgs)
{
Command?.Execute(CommandParameter);
OnClicked(eventArgs);
Extension?.OnClicked(this, eventArgs);
ClickEventArgs nestedEventArgs = new ClickEventArgs();
ClickEvent?.Invoke(this, nestedEventArgs);
Clicked?.Invoke(this, eventArgs);
}
private void OnIconRelayout(object sender, EventArgs e)
{
MeasureText();
LayoutChild();
}
/// <summary>
/// This method is called when the control accessibility is activated.<br />
/// Derived classes should override this to perform custom accessibility activation.<br />
/// </summary>
/// <remarks>Hidden-API</remarks>
/// <returns>True if this control can perform accessibility activation.</returns>
[EditorBrowsable(EditorBrowsableState.Never)]
protected override bool OnAccessibilityActivated()
{
if (!IsEnabled)
{
return false;
}
if (!AccessibilityManager.Instance.IsForcedEnable())
{
return false;
}
// Touch Down
isPressed = true;
UpdateState();
// Touch Up
bool clicked = isPressed && IsEnabled;
isPressed = false;
if (IsSelectable)
{
IsSelected = !IsSelected;
}
else
{
UpdateState();
}
if (clicked)
{
ClickedEventArgs eventArgs = new ClickedEventArgs();
OnClickedInternal(eventArgs);
}
return true;
}
}
}