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8c763fb | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 | // Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
using System.Diagnostics.CodeAnalysis;
using System.Windows.Automation;
using System.Windows.Automation.Peers;
using System.Windows.Automation.Provider;
namespace Microsoft.Management.UI.Internal
{
/// <summary>
/// Provides an automation peer for <see cref="ExpanderButton"/>.
/// </summary>
[SuppressMessage("Microsoft.MSInternal", "CA903:InternalNamespaceShouldNotContainPublicTypes")]
public class ExpanderButtonAutomationPeer : ToggleButtonAutomationPeer, IExpandCollapseProvider
{
#region Fields
private ExpanderButton expanderButton;
#endregion
#region Structors
/// <summary>
/// Initializes a new instance of the <see cref="ExpanderButtonAutomationPeer" /> class.
/// </summary>
/// <param name="owner">The owner of the automation peer.</param>
public ExpanderButtonAutomationPeer(ExpanderButton owner)
: base(owner)
{
this.expanderButton = owner;
}
#endregion
#region Overrides
/// <summary>
/// Gets the class name.
/// </summary>
/// <returns>The class name.</returns>
protected override string GetClassNameCore()
{
return this.Owner.GetType().Name;
}
/// <summary>
/// Gets the control pattern for the <see cref="ExpanderButton"/> that is associated with this <see cref="ExpanderButtonAutomationPeer"/>.
/// </summary>
/// <param name="patternInterface">Specifies the control pattern that is returned.</param>
/// <returns>The control pattern for the <see cref="ExpanderButton"/> that is associated with this <see cref="ExpanderButtonAutomationPeer"/>.</returns>
public override object GetPattern(PatternInterface patternInterface)
{
if (patternInterface == PatternInterface.ExpandCollapse ||
patternInterface == PatternInterface.Toggle)
{
return this;
}
return null;
}
#endregion
#region IExpandCollapseProvider Implementations
/// <summary>
/// Gets the expand/collapse state of this <see cref="ExpanderButton"/> instance.
/// </summary>
ExpandCollapseState IExpandCollapseProvider.ExpandCollapseState
{
get
{
if (this.expanderButton.IsChecked == true)
{
return ExpandCollapseState.Expanded;
}
else
{
return ExpandCollapseState.Collapsed;
}
}
}
/// <summary>
/// Expands this instance of <see cref="ExpanderButton"/>.
/// </summary>
void IExpandCollapseProvider.Expand()
{
if (!this.IsEnabled())
{
throw new ElementNotEnabledException();
}
this.expanderButton.IsChecked = true;
}
/// <summary>
/// Collapses this instance of <see cref="ExpanderButton"/>.
/// </summary>
void IExpandCollapseProvider.Collapse()
{
if (!this.IsEnabled())
{
throw new ElementNotEnabledException();
}
this.expanderButton.IsChecked = false;
}
#endregion
}
}
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