public override Boolean Validate(RenderDevice device)
{
var portrait = false;
var desired = portrait;
var available = device.DeviceHeight >= device.DeviceWidth;
return desired == available;
}
public override Boolean Validate(RenderDevice device)
{
var hover = HoverAbility.Hover;
var desired = hover;
//Nothing yet, so we assume we have a headless browser
return desired == HoverAbility.None;
}
public override Boolean Validate(RenderDevice device)
{
var interlace = false;
var desired = interlace;
var available = device.IsInterlaced;
return desired == available;
}
public override Boolean Validate(RenderDevice device)
{
var accuracy = PointerAccuracy.Fine;
var desired = accuracy;
//Nothing yet, so we assume we have a headless browser
return desired == PointerAccuracy.None;
}
public override Boolean Validate(RenderDevice device)
{
var grid = false;
var desired = grid;
var available = device.IsGrid;
return desired == available;
}
public override Boolean Validate(RenderDevice device)
{
var state = ScriptingState.None;
var options = device.Options;
var available = ScriptingState.None;
if (options != null && options.IsScripting())
available = device.DeviceType == RenderDevice.Kind.Screen ? ScriptingState.Enabled : ScriptingState.InitialOnly;
return state == available;
}
public override Boolean Validate(RenderDevice device)
{
var res = new Resolution(72f, Resolution.Unit.Dpi);
var desired = res.To(Resolution.Unit.Dpi);
var available = (Single)device.Resolution;
if (IsMaximum)
return available <= desired;
else if (IsMinimum)
return available >= desired;
return desired == available;
}
public override Boolean Validate(RenderDevice device)
{
var length = Length.Zero;
var desired = length.ToPixel();
var available = (Single)device.DeviceWidth;
if (IsMaximum)
return available <= desired;
else if (IsMinimum)
return available >= desired;
return desired == available;
}
public override Boolean Validate(RenderDevice device)
{
var index = 0;
var desired = index;
var available = device.ColorBits;
if (IsMaximum)
return available <= desired;
else if (IsMinimum)
return available >= desired;
return desired == available;
}
public override Boolean Validate(RenderDevice device)
{
var ratio = Tuple.Create(1f, 1f);
var desired = ratio.Item1 / ratio.Item2;
var available = (Single)device.ViewPortWidth / (Single)device.ViewPortHeight;
if (IsMaximum)
return available <= desired;
else if (IsMinimum)
return available >= desired;
return desired == available;
}
public override Boolean Validate(RenderDevice device)
{
var frequency = UpdateFrequency.Normal;
var desired = frequency;
var available = device.Frequency;
if (available >= 30)
return desired == UpdateFrequency.Normal;
else if (available > 0)
return desired == UpdateFrequency.Slow;
return desired == UpdateFrequency.None;
}
public override Boolean Validate(RenderDevice device)
{
var color = 1;
var desired = color;
var available = Math.Pow(device.ColorBits, 2);
if (IsMaximum)
return available <= desired;
else if (IsMinimum)
return available >= desired;
return desired == available;
}
public override Boolean Validate(RenderDevice device)
{
var value = 1f;
var desired = value;
var available = device.Resolution / 96f;
if (IsMaximum)
return available <= desired;
else if (IsMinimum)
return available >= desired;
return desired == available;
}
public Boolean Validate(RenderDevice device)
{
if (!String.IsNullOrEmpty(Type) && KnownTypes.Contains(Type) == IsInverse)
{
return false;
}
if (IsInvalid(device))
{
return false;
}
return !Features.Any(m => m.Validate(device) == IsInverse);
}
public override Boolean Validate(RenderDevice device)
{
var index = 0;
var desired = index;
var available = device.MonochromeBits;
if (IsMaximum)
{
return available <= desired;
}
else if (IsMinimum)
{
return available >= desired;
}
return desired == available;
}
public override Boolean Validate(RenderDevice device)
{
var length = Length.Zero;
var desired = length.ToPixel();
var available = (Single)device.ViewPortHeight;
if (IsMaximum)
{
return available <= desired;
}
else if (IsMinimum)
{
return available >= desired;
}
return desired == available;
}
internal override Boolean IsValid(RenderDevice device)
{
return Condition.Check();
}
internal override Boolean IsValid(RenderDevice device)
{
return true;
}
public Boolean Validate(RenderDevice device)
{
return !Media.Any(m => !m.Validate(device));
}
/// <summary>
/// Generates the style collection for the given window object.
/// </summary>
/// <param name="window">The window to host the style collection.</param>
/// <returns>The device-bound style collection.</returns>
public static StyleCollection GetStyleCollection(this IWindow window)
{
var device = new RenderDevice(window.OuterWidth, window.OuterHeight);
var stylesheets = window.Document.GetStyleSheets().OfType<CssStyleSheet>();
return new StyleCollection(stylesheets, device);
}
/// <summary>
/// Validates the list of contained media against the provided rendering device.
/// </summary>
/// <param name="device">The current rendering device.</param>
/// <returns>True if the constraints are satisfied, otherwise false.</returns>
public Boolean Validate(RenderDevice device)
{
foreach (var media in _media)
{
if (media.Validate(device) == false)
return false;
}
return true;
}
public override Boolean Validate(RenderDevice device)
{
return true;
}
Boolean IsInvalid(RenderDevice device)
{
return IsInvalid(device, Keywords.Screen, RenderDevice.Kind.Screen) ||
IsInvalid(device, Keywords.Speech, RenderDevice.Kind.Speech) ||
IsInvalid(device, Keywords.Print, RenderDevice.Kind.Printer);
}
internal override Boolean IsValid(RenderDevice device)
{
return Media.Validate(device);
}
/// <summary> /// Validates the given feature against the provided rendering device. /// </summary> /// <param name="device">The provided rendering device.</param> /// <returns>True if the constraints are satisfied, otherwise false.</returns> public abstract Boolean Validate(RenderDevice device);
Boolean IsInvalid(RenderDevice device, String keyword, RenderDevice.Kind kind)
{
return keyword.Is(Type) && (device.DeviceType == kind) == IsInverse;
}
internal abstract Boolean IsValid(RenderDevice device);
/// <summary> /// Validates the given feature against the provided rendering device. /// </summary> /// <param name="device">The provided rendering device.</param> /// <returns>True if the constraints are satisfied, otherwise false.</returns> public abstract Boolean Validate(RenderDevice device);
