зеркало из https://github.com/dotnet/winforms.git
Adding CheckBox control UIA accessibility (#3228)
This commit is contained in:
Mikhail Lipin
GitHub
Родитель
eff8a5d553
Коммит
4c1c9d66bb
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@ -9335,7 +9335,7 @@ System.Windows.Forms.ButtonBase.ButtonBaseAccessibleObject.ButtonBaseAccessibleO
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~System.Windows.Forms.ButtonBase.ImageKey.set -> void
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~System.Windows.Forms.ButtonBase.ImageList.get -> System.Windows.Forms.ImageList
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~System.Windows.Forms.ButtonBase.ImageList.set -> void
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~System.Windows.Forms.CheckBox.CheckBoxAccessibleObject.CheckBoxAccessibleObject(System.Windows.Forms.Control owner) -> void
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System.Windows.Forms.CheckBox.CheckBoxAccessibleObject.CheckBoxAccessibleObject(System.Windows.Forms.Control! owner) -> void
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~System.Windows.Forms.CheckedListBox.CheckedIndexCollection.CopyTo(System.Array dest, int index) -> void
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~System.Windows.Forms.CheckedListBox.CheckedIndexCollection.GetEnumerator() -> System.Collections.IEnumerator
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~System.Windows.Forms.CheckedListBox.CheckedIndices.get -> System.Windows.Forms.CheckedListBox.CheckedIndexCollection
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@ -11066,7 +11066,7 @@ System.Windows.Forms.VScrollProperties.VScrollProperties(System.Windows.Forms.Sc
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~override System.Windows.Forms.ButtonBase.OnVisibleChanged(System.EventArgs e) -> void
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~override System.Windows.Forms.ButtonBase.Text.get -> string
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~override System.Windows.Forms.ButtonBase.Text.set -> void
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~override System.Windows.Forms.CheckBox.CheckBoxAccessibleObject.DefaultAction.get -> string
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override System.Windows.Forms.CheckBox.CheckBoxAccessibleObject.DefaultAction.get -> string!
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~override System.Windows.Forms.CheckBox.CreateAccessibilityInstance() -> System.Windows.Forms.AccessibleObject
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~override System.Windows.Forms.CheckBox.CreateParams.get -> System.Windows.Forms.CreateParams
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~override System.Windows.Forms.CheckBox.OnClick(System.EventArgs e) -> void
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@ -0,0 +1,118 @@
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// Licensed to the .NET Foundation under one or more agreements.
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// The .NET Foundation licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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using System.Runtime.InteropServices;
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using static Interop;
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namespace System.Windows.Forms
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{
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public partial class CheckBox
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{
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public class CheckBoxAccessibleObject : ButtonBaseAccessibleObject
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{
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private readonly CheckBox _owningCheckBox;
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public CheckBoxAccessibleObject(Control owner)
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: base((owner is CheckBox owningCheckBox) ? owner : throw new ArgumentException(string.Format(SR.ConstructorArgumentInvalidValueType, nameof(Owner), typeof(CheckBox))))
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{
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_owningCheckBox = owningCheckBox;
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}
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public override string DefaultAction
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{
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get
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{
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string defaultAction = Owner.AccessibleDefaultActionDescription;
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if (defaultAction != null)
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{
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return defaultAction;
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}
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return _owningCheckBox.Checked
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? SR.AccessibleActionUncheck
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: SR.AccessibleActionCheck;
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}
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}
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public override AccessibleRole Role
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{
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get
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{
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AccessibleRole role = Owner.AccessibleRole;
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return role != AccessibleRole.Default
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? role
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: AccessibleRole.CheckButton;
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}
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}
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public override AccessibleStates State
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=> _owningCheckBox.CheckState switch
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{
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CheckState.Checked => AccessibleStates.Checked | base.State,
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CheckState.Indeterminate => AccessibleStates.Indeterminate | base.State,
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_ => base.State
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};
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internal override UiaCore.ToggleState ToggleState
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=> _owningCheckBox.Checked
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? UiaCore.ToggleState.On
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: UiaCore.ToggleState.Off;
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internal override bool IsPatternSupported(UiaCore.UIA patternId)
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=> patternId switch
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{
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var p when
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p == UiaCore.UIA.TogglePatternId => true,
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_ => base.IsPatternSupported(patternId)
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};
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internal override object? GetPropertyValue(UiaCore.UIA propertyID)
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=> propertyID switch
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{
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UiaCore.UIA.NamePropertyId
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=> Name,
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UiaCore.UIA.AutomationIdPropertyId
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=> Owner.Name,
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UiaCore.UIA.IsTogglePatternAvailablePropertyId
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=> IsPatternSupported(UiaCore.UIA.TogglePatternId),
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UiaCore.UIA.ControlTypePropertyId
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=> UiaCore.UIA.CheckBoxControlTypeId,
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UiaCore.UIA.IsKeyboardFocusablePropertyId
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=>
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// This is necessary for compatibility with MSAA proxy:
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// IsKeyboardFocusable = true regardless the control is enabled/disabled.
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true,
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UiaCore.UIA.HasKeyboardFocusPropertyId
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=> Owner.Focused,
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_ => base.GetPropertyValue(propertyID)
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};
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public override void DoDefaultAction()
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{
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if (_owningCheckBox.IsHandleCreated)
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{
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_owningCheckBox.AccObjDoDefaultAction = true;
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}
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try
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{
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base.DoDefaultAction();
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}
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finally
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{
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if (_owningCheckBox.IsHandleCreated)
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{
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_owningCheckBox.AccObjDoDefaultAction = false;
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}
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}
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}
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internal override void Toggle()
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{
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_owningCheckBox.Checked = !_owningCheckBox.Checked;
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}
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}
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}
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}
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@ -23,7 +23,7 @@ namespace System.Windows.Forms
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[DefaultBindingProperty(nameof(CheckState))]
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[ToolboxItem("System.Windows.Forms.Design.AutoSizeToolboxItem," + AssemblyRef.SystemDesign)]
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[SRDescription(nameof(SR.DescriptionCheckBox))]
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public class CheckBox : ButtonBase
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public partial class CheckBox : ButtonBase
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{
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private static readonly object EVENT_CHECKEDCHANGED = new object();
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private static readonly object EVENT_CHECKSTATECHANGED = new object();
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@ -405,6 +405,8 @@ namespace System.Windows.Forms
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}
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}
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internal override bool SupportsUiaProviders => true;
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/// <summary>
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/// Gets or sets a value indicating the alignment of the
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/// text on the checkbox control.
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@ -489,9 +491,14 @@ namespace System.Windows.Forms
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AccessibilityNotifyClients(AccessibleEvents.SystemCaptureStart, -1);
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}
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// MSAA events:
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AccessibilityNotifyClients(AccessibleEvents.StateChange, -1);
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AccessibilityNotifyClients(AccessibleEvents.NameChange, -1);
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// UIA events:
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AccessibilityObject.RaiseAutomationPropertyChangedEvent(UiaCore.UIA.NamePropertyId, Name, Name);
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AccessibilityObject.RaiseAutomationEvent(UiaCore.UIA.AutomationPropertyChangedEventId);
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if (FlatStyle == FlatStyle.System)
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{
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AccessibilityNotifyClients(AccessibleEvents.SystemCaptureEnd, -1);
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@ -645,84 +652,5 @@ namespace System.Windows.Forms
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int checkState = (int)CheckState;
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return s + ", CheckState: " + checkState.ToString(CultureInfo.InvariantCulture);
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}
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public class CheckBoxAccessibleObject : ButtonBaseAccessibleObject
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{
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public CheckBoxAccessibleObject(Control owner) : base(owner)
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{
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}
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public override string DefaultAction
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{
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get
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{
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string defaultAction = Owner.AccessibleDefaultActionDescription;
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if (defaultAction != null)
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{
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return defaultAction;
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}
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if (((CheckBox)Owner).Checked)
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{
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return SR.AccessibleActionUncheck;
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}
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else
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{
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return SR.AccessibleActionCheck;
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}
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}
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}
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public override AccessibleRole Role
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{
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get
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{
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AccessibleRole role = Owner.AccessibleRole;
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if (role != AccessibleRole.Default)
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{
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return role;
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}
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return AccessibleRole.CheckButton;
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}
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}
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public override AccessibleStates State
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{
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get
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{
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switch (((CheckBox)Owner).CheckState)
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{
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case CheckState.Checked:
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return AccessibleStates.Checked | base.State;
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case CheckState.Indeterminate:
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return AccessibleStates.Indeterminate | base.State;
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}
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return base.State;
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}
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}
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public override void DoDefaultAction()
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{
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CheckBox cb = Owner as CheckBox;
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if (cb != null)
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{
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cb.AccObjDoDefaultAction = true;
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}
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try
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{
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base.DoDefaultAction();
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}
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finally
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{
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if (cb != null)
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{
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cb.AccObjDoDefaultAction = false;
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}
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}
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}
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}
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}
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}
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@ -0,0 +1,195 @@
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// Licensed to the .NET Foundation under one or more agreements.
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// The .NET Foundation licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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using Xunit;
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using static Interop.UiaCore;
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namespace System.Windows.Forms.Tests
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{
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public class CheckBox_CheckBoxAccessibleObjectTests
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{
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[WinFormsFact]
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public void CheckBoxAccessibleObject_Ctor_NullControl_ThrowsArgumentException()
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{
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Assert.Throws<ArgumentException>(() => new CheckBox.CheckBoxAccessibleObject(null));
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}
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[WinFormsFact]
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public void CheckBoxAccessibleObject_Ctor_InvalidTypeControl_ThrowsArgumentException()
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{
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using var textBox = new TextBox();
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Assert.Throws<ArgumentException>(() => new CheckBox.CheckBoxAccessibleObject(textBox));
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}
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[WinFormsFact]
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public void CheckBoxAccessibleObject_Ctor_Default()
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{
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using var checkBox = new CheckBox();
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Assert.False(checkBox.IsHandleCreated);
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var checkBoxAccessibleObject = new CheckBox.CheckBoxAccessibleObject(checkBox);
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Assert.NotNull(checkBoxAccessibleObject.Owner);
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// TODO: ControlAccessibleObject shouldn't force handle creation, tracked in https://github.com/dotnet/winforms/issues/3062
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Assert.True(checkBox.IsHandleCreated);
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}
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[WinFormsFact]
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public void CheckBoxAccessibleObject_CustomDoDefaultAction_ReturnsExpected()
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{;
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using var checkBox = new CheckBox
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{
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Name = "CheckBox1",
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AccessibleDefaultActionDescription = "TestActionDescription"
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};
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Assert.False(checkBox.IsHandleCreated);
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var checkBoxAccessibleObject = new CheckBox.CheckBoxAccessibleObject(checkBox);
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Assert.Equal("TestActionDescription", checkBoxAccessibleObject.DefaultAction);
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// TODO: ControlAccessibleObject shouldn't force handle creation, tracked in https://github.com/dotnet/winforms/issues/3062
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Assert.True(checkBox.IsHandleCreated);
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}
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[WinFormsFact]
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public void CheckBoxAccessibleObject_DefaultRole_ReturnsExpected()
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{
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using var checkBox = new CheckBox();
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Assert.False(checkBox.IsHandleCreated);
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var checkBoxAccessibleObject = new CheckBox.CheckBoxAccessibleObject(checkBox);
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Assert.Equal(AccessibleRole.CheckButton, checkBoxAccessibleObject.Role);
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// TODO: ControlAccessibleObject shouldn't force handle creation, tracked in https://github.com/dotnet/winforms/issues/3062
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Assert.True(checkBox.IsHandleCreated);
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}
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[WinFormsFact]
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public void CheckBoxAccessibleObject_CustomRole_ReturnsExpected()
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{
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using var checkBox = new CheckBox
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{
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AccessibleRole = AccessibleRole.PushButton
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};
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Assert.False(checkBox.IsHandleCreated);
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var checkBoxAccessibleObject = new CheckBox.CheckBoxAccessibleObject(checkBox);
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Assert.Equal(AccessibleRole.PushButton, checkBoxAccessibleObject.Role);
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// TODO: ControlAccessibleObject shouldn't force handle creation, tracked in https://github.com/dotnet/winforms/issues/3062
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Assert.True(checkBox.IsHandleCreated);
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}
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[WinFormsFact]
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public void CheckBoxAccessibleObject_State_ReturnsExpected()
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{
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using var checkBox = new CheckBox();
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Assert.False(checkBox.IsHandleCreated);
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var checkBoxAccessibleObject = new CheckBox.CheckBoxAccessibleObject(checkBox);
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Assert.Equal(AccessibleStates.Focusable, checkBoxAccessibleObject.State);
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// TODO: ControlAccessibleObject shouldn't force handle creation, tracked in https://github.com/dotnet/winforms/issues/3062
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Assert.True(checkBox.IsHandleCreated);
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}
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[WinFormsFact]
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public void CheckBoxAccessibleObject_ToggleState_ReturnsExpected()
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{
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using var checkBox = new CheckBox();
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Assert.False(checkBox.IsHandleCreated);
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var checkBoxAccessibleObject = new CheckBox.CheckBoxAccessibleObject(checkBox);
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Assert.Equal(ToggleState.Off, checkBoxAccessibleObject.ToggleState);
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checkBoxAccessibleObject.DoDefaultAction();
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Assert.Equal(ToggleState.On, checkBoxAccessibleObject.ToggleState);
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// TODO: ControlAccessibleObject shouldn't force handle creation, tracked in https://github.com/dotnet/winforms/issues/3062
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Assert.True(checkBox.IsHandleCreated);
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}
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[WinFormsFact]
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public void CheckBoxAccessibleObject_Description_ReturnsExpected()
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{
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using var checkBox = new CheckBox
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{
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AccessibleDescription = "TestDescription"
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};
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Assert.False(checkBox.IsHandleCreated);
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var checkBoxAccessibleObject = new CheckBox.CheckBoxAccessibleObject(checkBox);
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Assert.Equal("TestDescription", checkBoxAccessibleObject.Description);
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// TODO: ControlAccessibleObject shouldn't force handle creation, tracked in https://github.com/dotnet/winforms/issues/3062
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Assert.True(checkBox.IsHandleCreated);
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}
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[WinFormsFact]
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public void CheckBoxAccessibleObject_Name_ReturnsExpected()
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{
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using var checkBox = new CheckBox
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{
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AccessibleName = "TestName"
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};
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Assert.False(checkBox.IsHandleCreated);
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var checkBoxAccessibleObject = new CheckBox.CheckBoxAccessibleObject(checkBox);
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Assert.Equal("TestName", checkBoxAccessibleObject.Name);
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// TODO: ControlAccessibleObject shouldn't force handle creation, tracked in https://github.com/dotnet/winforms/issues/3062
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Assert.True(checkBox.IsHandleCreated);
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}
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[WinFormsTheory]
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[InlineData((int)UIA.NamePropertyId, "TestName")]
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[InlineData((int)UIA.ControlTypePropertyId, UIA.CheckBoxControlTypeId)]
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[InlineData((int)UIA.IsKeyboardFocusablePropertyId, true)]
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[InlineData((int)UIA.AutomationIdPropertyId, "CheckBox1")]
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public void CheckBoxAccessibleObject_GetPropertyValue_Invoke_ReturnsExpected(int propertyID, object expected)
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{
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using var checkBox = new CheckBox
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{
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Name = "CheckBox1",
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AccessibleName = "TestName"
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};
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Assert.False(checkBox.IsHandleCreated);
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var checkBoxAccessibleObject = new CheckBox.CheckBoxAccessibleObject(checkBox);
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object value = checkBoxAccessibleObject.GetPropertyValue((UIA)propertyID);
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Assert.Equal(expected, value);
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// TODO: ControlAccessibleObject shouldn't force handle creation, tracked in https://github.com/dotnet/winforms/issues/3062
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Assert.True(checkBox.IsHandleCreated);
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}
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[WinFormsTheory]
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[InlineData((int)UIA.TogglePatternId)]
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[InlineData((int)UIA.LegacyIAccessiblePatternId)]
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public void CheckBoxAccessibleObject_IsPatternSupported_Invoke_ReturnsExpected(int patternId)
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{
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using var checkBox = new CheckBox();
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Assert.False(checkBox.IsHandleCreated);
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var checkBoxAccessibleObject = new CheckBox.CheckBoxAccessibleObject(checkBox);
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Assert.True(checkBoxAccessibleObject.IsPatternSupported((UIA)patternId));
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// TODO: ControlAccessibleObject shouldn't force handle creation, tracked in https://github.com/dotnet/winforms/issues/3062
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Assert.True(checkBox.IsHandleCreated);
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}
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||||
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[WinFormsFact]
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public void CheckBoxAccessibleObject_Toggle_Invoke_Success()
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{
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using var checkBox = new CheckBox();
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Assert.False(checkBox.IsHandleCreated);
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var checkBoxAccessibleObject = new CheckBox.CheckBoxAccessibleObject(checkBox);
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Assert.False(checkBox.Checked);
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checkBoxAccessibleObject.Toggle();
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Assert.True(checkBox.Checked);
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// toggle again
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checkBoxAccessibleObject.Toggle();
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Assert.False(checkBox.Checked);
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// TODO: ControlAccessibleObject shouldn't force handle creation, tracked in https://github.com/dotnet/winforms/issues/3062
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Assert.True(checkBox.IsHandleCreated);
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}
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}
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||||
}
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@ -9,6 +9,7 @@ using Xunit;
|
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namespace System.Windows.Forms.Tests
|
||||
{
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using static Interop.UiaCore;
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using Point = System.Drawing.Point;
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using Size = System.Drawing.Size;
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@ -415,6 +416,24 @@ namespace System.Windows.Forms.Tests
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Assert.False(control.GetTopLevel());
|
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}
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||||
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[WinFormsFact]
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public void CheckBox_RaiseAutomationEvent_Invoke_Success()
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{
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using var checkBox = new TestCheckBox();
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Assert.False(checkBox.IsHandleCreated);
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||||
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var accessibleObject = (SubCheckBoxAccessibleObject)checkBox.AccessibilityObject;
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Assert.Equal(0, accessibleObject.RaiseAutomationEventCallsCount);
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Assert.Equal(0, accessibleObject.RaiseAutomationPropertyChangedEventCallsCount);
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checkBox.Checked = true;
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||||
Assert.Equal(1, accessibleObject.RaiseAutomationEventCallsCount);
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||||
Assert.Equal(1, accessibleObject.RaiseAutomationPropertyChangedEventCallsCount);
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// TODO: ControlAccessibleObject shouldn't force handle creation, tracked in https://github.com/dotnet/winforms/issues/3062
|
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Assert.True(checkBox.IsHandleCreated);
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}
|
||||
|
||||
// the zero here may be an issue with cultural variance
|
||||
[WinFormsFact]
|
||||
public void CheckBox_ToStringTest()
|
||||
|
|
@ -495,5 +514,38 @@ namespace System.Windows.Forms.Tests
|
|||
|
||||
public new void OnClick(EventArgs e) => base.OnClick(e);
|
||||
}
|
||||
|
||||
private class TestCheckBox : CheckBox
|
||||
{
|
||||
protected override AccessibleObject CreateAccessibilityInstance()
|
||||
{
|
||||
return new SubCheckBoxAccessibleObject(this);
|
||||
}
|
||||
}
|
||||
|
||||
private class SubCheckBoxAccessibleObject : CheckBox.CheckBoxAccessibleObject
|
||||
{
|
||||
public SubCheckBoxAccessibleObject(CheckBox owner) : base(owner)
|
||||
{
|
||||
RaiseAutomationEventCallsCount = 0;
|
||||
RaiseAutomationPropertyChangedEventCallsCount = 0;
|
||||
}
|
||||
|
||||
public int RaiseAutomationEventCallsCount { get; private set; }
|
||||
|
||||
public int RaiseAutomationPropertyChangedEventCallsCount { get; private set; }
|
||||
|
||||
internal override bool RaiseAutomationEvent(UIA eventId)
|
||||
{
|
||||
RaiseAutomationEventCallsCount++;
|
||||
return base.RaiseAutomationEvent(eventId);
|
||||
}
|
||||
|
||||
internal override bool RaiseAutomationPropertyChangedEvent(UIA propertyId, object oldValue, object newValue)
|
||||
{
|
||||
RaiseAutomationPropertyChangedEventCallsCount++;
|
||||
return base.RaiseAutomationPropertyChangedEvent(propertyId, oldValue, newValue);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
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