75 lines
2.7 KiB
C#
75 lines
2.7 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.Linq;
|
|
using System.Text;
|
|
|
|
namespace Mustache {
|
|
/// <summary>
|
|
/// Defines a tag that conditionally prints its content, based on whether the passed in values are equal
|
|
/// </summary>
|
|
internal sealed class GtTagDefinition : ConditionTagDefinition {
|
|
private const string ConditionParameter = "condition";
|
|
private const string TargetValueParameter = "targetValue";
|
|
|
|
/// <summary>
|
|
/// Initializes a new instance of a IfTagDefinition.
|
|
/// </summary>
|
|
public GtTagDefinition()
|
|
: base("gt") {}
|
|
|
|
/// <summary>
|
|
/// Gets whether the tag only exists within the scope of its parent.
|
|
/// </summary>
|
|
protected override bool GetIsContextSensitive() {
|
|
return false;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the parameters that can be passed to the tag.
|
|
/// </summary>
|
|
/// <returns>The parameters.</returns>
|
|
protected override IEnumerable<TagParameter> GetParameters() {
|
|
return new[] {
|
|
new TagParameter(ConditionParameter) {IsRequired = true},
|
|
new TagParameter(TargetValueParameter) {IsRequired = true}
|
|
};
|
|
}
|
|
|
|
|
|
/// <summary>
|
|
/// Gets whether the primary generator group should be used to render the tag.
|
|
/// </summary>
|
|
/// <param name="arguments">The arguments passed to the tag.</param>
|
|
/// <returns>
|
|
/// True if the primary generator group should be used to render the tag;
|
|
/// otherwise, false to use the secondary group.
|
|
/// </returns>
|
|
public override bool ShouldGeneratePrimaryGroup(Dictionary<string, object> arguments) {
|
|
object condition = arguments[ConditionParameter];
|
|
object targetValue = arguments[TargetValueParameter];
|
|
return isConditionSatisfied(condition, targetValue);
|
|
}
|
|
|
|
private bool isConditionSatisfied(object condition, object targetValue) {
|
|
if (condition == null || targetValue == null) {
|
|
return false;
|
|
}
|
|
|
|
try {
|
|
return Convert.ToDouble(condition) > Convert.ToDouble(targetValue);
|
|
} catch (Exception exception) {
|
|
return false;
|
|
}
|
|
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the parameters that are used to create a new child context.
|
|
/// </summary>
|
|
/// <returns>The parameters that are used to create a new child context.</returns>
|
|
public override IEnumerable<TagParameter> GetChildContextParameters() {
|
|
return new TagParameter[0];
|
|
}
|
|
}
|
|
}
|