public void StyleDataTriggerTest()
{
string text = @"
<Style xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml' xmlns:test='clr-namespace:Granular.Presentation.Tests;assembly=Granular.Presentation.Tests'>
<Setter Property='FrameworkElement.Width' Value='100'/>
<Style.Triggers>
<DataTrigger Binding='{Binding DoubleValue}' Value='1'>
<Setter Property='FrameworkElement.Width' Value='200'/>
</DataTrigger>
</Style.Triggers>
</Style>";
TestStyle style = new TestStyle();
XamlLoader.Load(style, XamlParser.Parse(text));
Control control = new Control();
BindingTestDataContext dataContext = new BindingTestDataContext();
dataContext.DoubleValue = 1;
control.Style = style;
Assert.AreEqual(100, control.Width);
control.DataContext = dataContext;
Assert.AreEqual(200, control.Width);
dataContext.DoubleValue = 2;
Assert.AreEqual(100, control.Width);
dataContext.DoubleValue = 1;
Assert.AreEqual(200, control.Width);
control.DataContext = null;
Assert.AreEqual(100, control.Width);
}
public void StyleDataTriggerTest()
{
string text = @"
<Style xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml' xmlns:test='clr-namespace:Granular.Presentation.Tests;assembly=Granular.Presentation.Tests'>
<Setter Property='FrameworkElement.Width' Value='100'/>
<Style.Triggers>
<DataTrigger Binding='{Binding DoubleValue}' Value='1'>
<Setter Property='FrameworkElement.Width' Value='200'/>
</DataTrigger>
</Style.Triggers>
</Style>";
TestStyle style = new TestStyle();
XamlLoader.Load(style, XamlParser.Parse(text));
Control control = new Control();
BindingTestDataContext dataContext = new BindingTestDataContext();
dataContext.DoubleValue = 1;
control.Style = style;
Assert.AreEqual(100, control.Width);
control.DataContext = dataContext;
Assert.AreEqual(200, control.Width);
dataContext.DoubleValue = 2;
Assert.AreEqual(100, control.Width);
dataContext.DoubleValue = 1;
Assert.AreEqual(200, control.Width);
control.DataContext = null;
Assert.AreEqual(100, control.Width);
}
public void StyleEventTriggerTest()
{
string text = @"
<Style xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml' xmlns:test='clr-namespace:Granular.Presentation.Tests;assembly=Granular.Presentation.Tests'>
<Setter Property='FrameworkElement.Width' Value='100'/>
<EventSetter Event='FrameworkElement.Initialized' Handler='InitializedHandler'/>
<Style.Triggers>
<EventTrigger RoutedEvent='FrameworkElement.Initialized'>
<Setter Property='FrameworkElement.Width' Value='200'/>
</EventTrigger>
</Style.Triggers>
</Style>";
TestStyle style = new TestStyle();
XamlLoader.Load(style, XamlParser.Parse(text));
Control control = new Control();
control.Style = style;
Assert.AreEqual(100, control.Width);
Assert.AreEqual(BaseValueSource.Style, control.GetValueSource(FrameworkElement.WidthProperty).BaseValueSource);
Assert.AreEqual(0, style.InitializedHandlerCallsCount);
control.RaiseEvent(new RoutedEventArgs(FrameworkElement.InitializedEvent, control));
Assert.AreEqual(200, control.Width);
Assert.AreEqual(BaseValueSource.StyleTrigger, control.GetValueSource(FrameworkElement.WidthProperty).BaseValueSource);
Assert.AreEqual(1, style.InitializedHandlerCallsCount);
control.Style = null;
Assert.AreEqual(Double.NaN, control.Width);
Assert.AreEqual(BaseValueSource.Default, control.GetValueSource(FrameworkElement.WidthProperty).BaseValueSource);
control.RaiseEvent(new RoutedEventArgs(FrameworkElement.InitializedEvent, control));
Assert.AreEqual(Double.NaN, control.Width);
Assert.AreEqual(BaseValueSource.Default, control.GetValueSource(FrameworkElement.WidthProperty).BaseValueSource);
Assert.AreEqual(1, style.InitializedHandlerCallsCount);
}
public void StyleEventTriggerTest()
{
string text = @"
<Style xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml' xmlns:test='clr-namespace:Granular.Presentation.Tests;assembly=Granular.Presentation.Tests'>
<Setter Property='FrameworkElement.Width' Value='100'/>
<EventSetter Event='FrameworkElement.Initialized' Handler='InitializedHandler'/>
<Style.Triggers>
<EventTrigger RoutedEvent='FrameworkElement.Initialized'>
<Setter Property='FrameworkElement.Width' Value='200'/>
</EventTrigger>
</Style.Triggers>
</Style>";
TestStyle style = new TestStyle();
XamlLoader.Load(style, XamlParser.Parse(text));
Control control = new Control();
control.Style = style;
Assert.AreEqual(100, control.Width);
Assert.AreEqual(BaseValueSource.Style, control.GetValueSource(FrameworkElement.WidthProperty).BaseValueSource);
Assert.AreEqual(0, style.InitializedHandlerCallsCount);
control.RaiseEvent(new RoutedEventArgs(FrameworkElement.InitializedEvent, control));
Assert.AreEqual(200, control.Width);
Assert.AreEqual(BaseValueSource.StyleTrigger, control.GetValueSource(FrameworkElement.WidthProperty).BaseValueSource);
Assert.AreEqual(1, style.InitializedHandlerCallsCount);
control.Style = null;
Assert.AreEqual(Double.NaN, control.Width);
Assert.AreEqual(BaseValueSource.Default, control.GetValueSource(FrameworkElement.WidthProperty).BaseValueSource);
control.RaiseEvent(new RoutedEventArgs(FrameworkElement.InitializedEvent, control));
Assert.AreEqual(Double.NaN, control.Width);
Assert.AreEqual(BaseValueSource.Default, control.GetValueSource(FrameworkElement.WidthProperty).BaseValueSource);
Assert.AreEqual(1, style.InitializedHandlerCallsCount);
}