Steven Kirk
11 years ago
37 changed files with 1275 additions and 350 deletions
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// Copyright (c) The Perspex Project. All rights reserved.
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// Licensed under the MIT license. See licence.md file in the project root for full license information.
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namespace Perspex |
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{ |
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/// <summary>
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/// The priority of a binding.
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/// </summary>
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public enum BindingPriority |
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{ |
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/// <summary>
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/// A value that comes from an animation.
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/// </summary>
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Animation = -1, |
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/// <summary>
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/// A local value.
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/// </summary>
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LocalValue = 0, |
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/// <summary>
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/// A triggered style binding.
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/// </summary>
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/// <remarks>
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/// A style trigger is a selector such as .class which overrides a
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/// <see cref="TemplatedParent"/> binding. In this way, a basic control can have
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/// for example a Background from the templated parent which changes when the
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/// control has the :pointerover class.
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/// </remarks>
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StyleTrigger, |
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/// <summary>
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/// A binding to a property on the templated parent.
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/// </summary>
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TemplatedParent, |
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/// <summary>
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/// A style binding.
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/// </summary>
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Style, |
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/// <summary>
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/// The binding is uninitialized.
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/// </summary>
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Unset = int.MaxValue, |
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} |
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} |
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// Copyright (c) The Perspex Project. All rights reserved.
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// Licensed under the MIT license. See licence.md file in the project root for full license information.
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using System; |
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using System.Collections.Generic; |
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using System.Reactive.Subjects; |
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using Xunit; |
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namespace Perspex.Base.UnitTests |
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{ |
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public class PerspexObjectTests_Direct |
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{ |
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[Fact] |
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public void GetValue_Gets_Value() |
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{ |
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var target = new Class1(); |
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Assert.Equal("initial", target.GetValue(Class1.FooProperty)); |
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} |
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[Fact] |
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public void GetValue_Gets_Value_NonGeneric() |
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{ |
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var target = new Class1(); |
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Assert.Equal("initial", target.GetValue((PerspexProperty)Class1.FooProperty)); |
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} |
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[Fact] |
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public void GetValue_On_Unregistered_Property_Throws_Exception() |
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{ |
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var target = new Class2(); |
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Assert.Throws<ArgumentException>(() => target.GetValue(Class1.BarProperty)); |
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} |
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[Fact] |
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public void SetValue_Sets_Value() |
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{ |
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var target = new Class1(); |
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target.SetValue(Class1.FooProperty, "newvalue"); |
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Assert.Equal("newvalue", target.Foo); |
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} |
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[Fact] |
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public void SetValue_Sets_Value_NonGeneric() |
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{ |
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var target = new Class1(); |
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target.SetValue((PerspexProperty)Class1.FooProperty, "newvalue"); |
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Assert.Equal("newvalue", target.Foo); |
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} |
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[Fact] |
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public void SetValue_Raises_PropertyChanged() |
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{ |
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var target = new Class1(); |
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bool raised = false; |
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target.PropertyChanged += (s, e) => |
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raised = e.Property == Class1.FooProperty && |
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(string)e.OldValue == "initial" && |
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(string)e.NewValue == "newvalue" && |
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e.Priority == BindingPriority.LocalValue; |
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target.SetValue(Class1.FooProperty, "newvalue"); |
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Assert.True(raised); |
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} |
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[Fact] |
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public void SetValue_Raises_Changed() |
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{ |
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var target = new Class1(); |
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bool raised = false; |
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Class1.FooProperty.Changed.Subscribe(e => |
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raised = e.Property == Class1.FooProperty && |
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(string)e.OldValue == "initial" && |
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(string)e.NewValue == "newvalue" && |
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e.Priority == BindingPriority.LocalValue); |
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target.SetValue(Class1.FooProperty, "newvalue"); |
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Assert.True(raised); |
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} |
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[Fact] |
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public void SetValue_On_Unregistered_Property_Throws_Exception() |
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{ |
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var target = new Class2(); |
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Assert.Throws<ArgumentException>(() => target.SetValue(Class1.BarProperty, "value")); |
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} |
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[Fact] |
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public void GetObservable_Returns_Values() |
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{ |
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var target = new Class1(); |
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List<string> values = new List<string>(); |
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target.GetObservable(Class1.FooProperty).Subscribe(x => values.Add(x)); |
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target.Foo = "newvalue"; |
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Assert.Equal(new[] { "initial", "newvalue" }, values); |
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} |
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[Fact] |
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public void Bind_Binds_Property_Value() |
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{ |
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var target = new Class1(); |
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var source = new Subject<string>(); |
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var sub = target.Bind(Class1.FooProperty, source); |
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Assert.Equal("initial", target.Foo); |
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source.OnNext("first"); |
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Assert.Equal("first", target.Foo); |
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source.OnNext("second"); |
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Assert.Equal("second", target.Foo); |
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sub.Dispose(); |
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source.OnNext("third"); |
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Assert.Equal("second", target.Foo); |
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} |
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[Fact] |
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public void Bind_Binds_Property_Value_NonGeneric() |
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{ |
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var target = new Class1(); |
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var source = new Subject<string>(); |
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var sub = target.Bind((PerspexProperty)Class1.FooProperty, source); |
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Assert.Equal("initial", target.Foo); |
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source.OnNext("first"); |
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Assert.Equal("first", target.Foo); |
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source.OnNext("second"); |
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Assert.Equal("second", target.Foo); |
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sub.Dispose(); |
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source.OnNext("third"); |
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Assert.Equal("second", target.Foo); |
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} |
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[Fact] |
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public void ReadOnly_Property_Cannot_Be_Set() |
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{ |
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var target = new Class1(); |
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Assert.Throws<ArgumentException>(() => |
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target.SetValue(Class1.BarProperty, "newvalue")); |
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} |
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[Fact] |
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public void ReadOnly_Property_Cannot_Be_Set_NonGeneric() |
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{ |
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var target = new Class1(); |
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Assert.Throws<ArgumentException>(() => |
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target.SetValue((PerspexProperty)Class1.BarProperty, "newvalue")); |
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} |
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[Fact] |
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public void ReadOnly_Property_Cannot_Be_Bound() |
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{ |
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var target = new Class1(); |
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var source = new Subject<string>(); |
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Assert.Throws<ArgumentException>(() => |
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target.Bind(Class1.BarProperty, source)); |
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} |
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[Fact] |
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public void ReadOnly_Property_Cannot_Be_Bound_NonGeneric() |
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{ |
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var target = new Class1(); |
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var source = new Subject<string>(); |
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Assert.Throws<ArgumentException>(() => |
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target.Bind(Class1.BarProperty, source)); |
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} |
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[Fact] |
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public void GetValue_Gets_Value_On_AddOwnered_Property() |
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{ |
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var target = new Class2(); |
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Assert.Equal("initial2", target.GetValue(Class2.FooProperty)); |
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} |
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[Fact] |
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public void GetValue_Gets_Value_On_AddOwnered_Property_Using_Original() |
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{ |
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var target = new Class2(); |
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Assert.Equal("initial2", target.GetValue(Class1.FooProperty)); |
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} |
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[Fact] |
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public void GetValue_Gets_Value_On_AddOwnered_Property_Using_Original_NonGeneric() |
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{ |
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var target = new Class2(); |
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Assert.Equal("initial2", target.GetValue((PerspexProperty)Class1.FooProperty)); |
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} |
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[Fact] |
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public void SetValue_Sets_Value_On_AddOwnered_Property_Using_Original() |
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{ |
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var target = new Class2(); |
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target.SetValue(Class1.FooProperty, "newvalue"); |
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Assert.Equal("newvalue", target.Foo); |
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} |
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[Fact] |
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public void SetValue_Sets_Value_On_AddOwnered_Property_Using_Original_NonGeneric() |
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{ |
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var target = new Class2(); |
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target.SetValue((PerspexProperty)Class1.FooProperty, "newvalue"); |
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Assert.Equal("newvalue", target.Foo); |
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} |
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[Fact] |
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public void Bind_Binds_AddOwnered_Property_Value() |
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{ |
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var target = new Class2(); |
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var source = new Subject<string>(); |
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var sub = target.Bind(Class1.FooProperty, source); |
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Assert.Equal("initial2", target.Foo); |
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source.OnNext("first"); |
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Assert.Equal("first", target.Foo); |
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source.OnNext("second"); |
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Assert.Equal("second", target.Foo); |
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sub.Dispose(); |
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source.OnNext("third"); |
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Assert.Equal("second", target.Foo); |
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} |
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[Fact] |
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public void Bind_Binds_AddOwnered_Property_Value_NonGeneric() |
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{ |
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var target = new Class2(); |
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var source = new Subject<string>(); |
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var sub = target.Bind((PerspexProperty)Class1.FooProperty, source); |
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Assert.Equal("initial2", target.Foo); |
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source.OnNext("first"); |
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Assert.Equal("first", target.Foo); |
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source.OnNext("second"); |
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Assert.Equal("second", target.Foo); |
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sub.Dispose(); |
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source.OnNext("third"); |
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Assert.Equal("second", target.Foo); |
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} |
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[Fact] |
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public void Property_Notifies_Initialized() |
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{ |
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Class1 target; |
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bool raised = false; |
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Class1.FooProperty.Initialized.Subscribe(e => |
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raised = e.Property == Class1.FooProperty && |
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e.OldValue == PerspexProperty.UnsetValue && |
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(string)e.NewValue == "initial" && |
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e.Priority == BindingPriority.Unset); |
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target = new Class1(); |
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Assert.True(raised); |
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} |
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private class Class1 : PerspexObject |
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{ |
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public static readonly PerspexProperty<string> FooProperty = |
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PerspexProperty.RegisterDirect<Class1, string>("Foo", o => o.Foo, (o, v) => o.Foo = v); |
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public static readonly PerspexProperty<string> BarProperty = |
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PerspexProperty.RegisterDirect<Class1, string>("Bar", o => o.Bar); |
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private string _foo = "initial"; |
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private string _bar = "bar"; |
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public string Foo |
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{ |
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get { return _foo; } |
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set { SetAndRaise(FooProperty, ref _foo, value); } |
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} |
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public string Bar |
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{ |
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get { return _bar; } |
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} |
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} |
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private class Class2 : PerspexObject |
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{ |
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public static readonly PerspexProperty<string> FooProperty = |
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Class1.FooProperty.AddOwner<Class2>(o => o.Foo, (o, v) => o.Foo = v); |
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private string _foo = "initial2"; |
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static Class2() |
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{ |
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} |
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public string Foo |
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{ |
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get { return _foo; } |
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set { SetAndRaise(FooProperty, ref _foo, value); } |
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} |
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} |
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} |
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} |
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