public ValidationRule(string rootType, string property, ModelExpression validationExpression, ModelExpression errorMessageExpression)
: base(rootType, property, new Error(GetErrorCode(rootType, property, "Validation"), "Invalid", null), RuleInvocationType.InitNew | RuleInvocationType.PropertyChanged, property)
{
this.validationExpression = validationExpression;
this.errorMessageExpression = errorMessageExpression;
Initialize += (s, e) => InitializeExpressions();
}
/// <summary>
/// 初始化
/// </summary>
/// <param name="expression">属性表达式</param>
/// <param name="config">配置</param>
public static void Init(ModelExpression expression, SelectConfig config)
{
new SelectExpressionResolver(expression, config).Init();
}
public async Task ProcessAsync_CallsGeneratorWithExpectedValues_ItemsAndAttribute(
IEnumerable <SelectListItem> inputItems,
string attributeName,
string attributeValue,
IEnumerable <SelectListItem> expectedItems)
{
// Arrange
var contextAttributes = new TagHelperAttributeList
{
// Provided for completeness. Select tag helper does not confirm AllAttributes set is consistent.
{ attributeName, attributeValue },
};
var originalAttributes = new TagHelperAttributeList
{
{ attributeName, attributeValue },
};
var propertyName = "Property1";
var expectedTagName = "select";
var tagHelperContext = new TagHelperContext(
tagName: "select",
allAttributes: contextAttributes,
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
expectedTagName,
originalAttributes,
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var metadataProvider = new EmptyModelMetadataProvider();
string model = null;
var modelExplorer = metadataProvider.GetModelExplorerForType(typeof(string), model);
var htmlGenerator = new Mock <IHtmlGenerator>(MockBehavior.Strict);
var viewContext = TestableHtmlGenerator.GetViewContext(model, htmlGenerator.Object, metadataProvider);
// Simulate a (model => model) scenario. E.g. the calling helper may appear in a low-level template.
var modelExpression = new ModelExpression(string.Empty, modelExplorer);
viewContext.ViewData.TemplateInfo.HtmlFieldPrefix = propertyName;
var currentValues = new string[0];
htmlGenerator
.Setup(real => real.GetCurrentValues(
viewContext,
modelExplorer,
string.Empty, // expression
false)) // allowMultiple
.Returns(currentValues)
.Verifiable();
htmlGenerator
.Setup(real => real.GenerateSelect(
viewContext,
modelExplorer,
null, // optionLabel
string.Empty, // expression
expectedItems,
currentValues,
false, // allowMultiple
null)) // htmlAttributes
.Returns((TagBuilder)null)
.Verifiable();
var tagHelper = new SelectTagHelper(htmlGenerator.Object)
{
For = modelExpression,
Items = inputItems,
ViewContext = viewContext,
};
// Act
tagHelper.Init(tagHelperContext);
await tagHelper.ProcessAsync(tagHelperContext, output);
// Assert
htmlGenerator.Verify();
var keyValuePair = Assert.Single(
tagHelperContext.Items,
entry => (Type)entry.Key == typeof(SelectTagHelper));
var actualCurrentValues = Assert.IsType <CurrentValues>(keyValuePair.Value);
Assert.Same(currentValues, actualCurrentValues.Values);
}
public async Task ProcessAsync_GeneratesExpectedOutput(
object model,
Type containerType,
Func <object> modelAccessor,
NameAndId nameAndId,
string ignored)
{
// Arrange
var originalAttributes = new TagHelperAttributeList
{
{ "class", "form-control" },
};
var originalPostContent = "original content";
var expectedAttributes = new TagHelperAttributeList(originalAttributes)
{
{ "id", nameAndId.Id },
{ "name", nameAndId.Name },
{ "valid", "from validation attributes" },
};
var expectedPreContent = "original pre-content";
var expectedContent = "original content";
var expectedPostContent = originalPostContent;
var expectedTagName = "not-select";
var metadataProvider = new TestModelMetadataProvider();
var containerMetadata = metadataProvider.GetMetadataForType(containerType);
var containerExplorer = metadataProvider.GetModelExplorerForType(containerType, model);
var propertyMetadata = metadataProvider.GetMetadataForProperty(containerType, "Text");
var modelExplorer = containerExplorer.GetExplorerForExpression(propertyMetadata, modelAccessor());
var modelExpression = new ModelExpression(nameAndId.Name, modelExplorer);
var tagHelperContext = new TagHelperContext(
tagName: "select",
allAttributes: new TagHelperAttributeList(
Enumerable.Empty <TagHelperAttribute>()),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
expectedTagName,
originalAttributes,
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
})
{
TagMode = TagMode.SelfClosing,
};
output.PreContent.SetContent(expectedPreContent);
output.Content.SetContent(expectedContent);
output.PostContent.SetContent(originalPostContent);
var htmlGenerator = new TestableHtmlGenerator(metadataProvider)
{
ValidationAttributes =
{
{ "valid", "from validation attributes" },
}
};
var viewContext = TestableHtmlGenerator.GetViewContext(model, htmlGenerator, metadataProvider);
var tagHelper = new SelectTagHelper(htmlGenerator)
{
For = modelExpression,
ViewContext = viewContext,
};
// Act
tagHelper.Init(tagHelperContext);
await tagHelper.ProcessAsync(tagHelperContext, output);
// Assert
Assert.Equal(TagMode.SelfClosing, output.TagMode);
Assert.Equal(expectedAttributes, output.Attributes);
Assert.Equal(expectedPreContent, output.PreContent.GetContent());
Assert.Equal(expectedContent, output.Content.GetContent());
Assert.Equal(expectedPostContent, output.PostContent.GetContent());
Assert.Equal(expectedTagName, output.TagName);
Assert.Single(
tagHelperContext.Items,
entry => (Type)entry.Key == typeof(SelectTagHelper));
}
public static PropertyInfo GetProperty(this ModelExpression model)
{
var metadata = model.Metadata;
return(metadata.ContainerType.GetProperty(metadata.PropertyName));
}
protected virtual bool IsSelectGroup(TagHelperContext context, ModelExpression model)
{
return(IsEnum(model.ModelExplorer) || AreSelectItemsProvided(model.ModelExplorer));
}
protected virtual AbpTagHelper GetSelectGroupTagHelper(TagHelperContext context, TagHelperOutput output, ModelExpression model)
{
return(IsRadioGroup(model.ModelExplorer) ?
GetAbpRadioInputTagHelper(model) :
GetSelectTagHelper(model));
}
void SetRange(ModelExpression minimum, ModelExpression maximum)
{
this.minExpression = minimum;
this.maxExpression = maximum;
var minPath = minimum != null ? minimum.Path.Path : "";
var maxPath = maximum != null ? maximum.Path.Path : "";
if (!string.IsNullOrEmpty(minPath) || !string.IsNullOrEmpty(maxPath))
{
minPath = minPath.StartsWith("{") ? minPath.Substring(1, minPath.Length - 2) : minPath;
maxPath = maxPath.StartsWith("{") ? maxPath.Substring(1, maxPath.Length - 2) : maxPath;
Path = "{" + (minPath.Length > 0 && maxPath.Length > 0 ? minPath + "," + maxPath : minPath.Length > 0 ? minPath : maxPath) + "}";
SetPredicates(Property.Name, Path);
}
}
public ValidationRule(string rootType, string property, string errorName, string[] additionalPredicates, ModelExpression validationExpression, ModelExpression errorMessageExpression)
: base(rootType, property, new Error(GetErrorCode(rootType, property, errorName), "Invalid", null), RuleInvocationType.InitNew | RuleInvocationType.PropertyChanged, new string[] { property }.Concat(additionalPredicates).ToArray())
{
this.validationExpression = validationExpression;
this.errorMessageExpression = errorMessageExpression;
Initialize += (s, e) => InitializeExpressions();
}
public async Task ProcessAsync_GeneratesExpectedOutput(
object model,
Type containerType,
Func <object> modelAccessor,
string propertyPath,
TagHelperOutputContent tagHelperOutputContent)
{
// Arrange
var expectedTagName = "not-label";
var expectedAttributes = new Dictionary <string, string>
{
{ "class", "form-control" },
{ "for", tagHelperOutputContent.ExpectedId }
};
var metadataProvider = new DataAnnotationsModelMetadataProvider();
// Property name is either nameof(Model.Text) or nameof(NestedModel.Text).
var metadata = metadataProvider.GetMetadataForProperty(modelAccessor, containerType, propertyName: "Text");
var modelExpression = new ModelExpression(propertyPath, metadata);
var tagHelper = new LabelTagHelper
{
For = modelExpression,
};
var expectedPreContent = "original pre-content";
var expectedPostContent = "original post-content";
var tagHelperContext = new TagHelperContext(
allAttributes: new Dictionary <string, object>(),
uniqueId: "test",
getChildContentAsync: () => Task.FromResult(tagHelperOutputContent.OriginalChildContent));
var htmlAttributes = new Dictionary <string, string>
{
{ "class", "form-control" },
};
var output = new TagHelperOutput(expectedTagName, htmlAttributes)
{
PreContent = expectedPreContent,
PostContent = expectedPostContent,
};
// LabelTagHelper checks ContentSet so we don't want to forcibly set it if
// tagHelperOutputContent.OriginalContent is going to be null or empty.
if (!string.IsNullOrEmpty(tagHelperOutputContent.OriginalContent))
{
output.Content = tagHelperOutputContent.OriginalContent;
}
var htmlGenerator = new TestableHtmlGenerator(metadataProvider);
var viewContext = TestableHtmlGenerator.GetViewContext(model, htmlGenerator, metadataProvider);
tagHelper.ViewContext = viewContext;
tagHelper.Generator = htmlGenerator;
// Act
await tagHelper.ProcessAsync(tagHelperContext, output);
// Assert
Assert.Equal(expectedAttributes, output.Attributes);
Assert.Equal(expectedPreContent, output.PreContent);
Assert.Equal(tagHelperOutputContent.ExpectedContent, output.Content);
Assert.Equal(expectedPostContent, output.PostContent);
Assert.False(output.SelfClosing);
Assert.Equal(expectedTagName, output.TagName);
}
protected StringLengthAttribute GetStringLengthAttribute(ModelExpression modelExpression)
{
return(modelExpression.Metadata.ValidatorMetadata.FirstOrDefault(vm => vm is StringLengthAttribute) as StringLengthAttribute);
}
protected RequiredAttribute GetRequiredAttribute(ModelExpression modelExpression)
{
return(modelExpression.Metadata.ValidatorMetadata.FirstOrDefault(vm => vm is RequiredAttribute) as RequiredAttribute);
}
/// <summary>
/// 初始化
/// </summary>
/// <param name="expression">属性表达式</param>
/// <param name="config">配置</param>
public static void Init(ModelExpression expression, Config config)
{
new CheckBoxExpressionResolver(expression, config).Init();
}
public static bool IsScalar(this ModelExpression dataSetFor)
{
return(dataSetFor.Metadata.IsScalar());
}
/// <summary>
/// 获取成员
/// </summary>
/// <param name="expression">模型表达式</param>
/// <returns></returns>
public static MemberInfo GetMemberInfo(this ModelExpression expression)
{
var members = expression.Metadata.ContainerType.GetMember(expression.Metadata.PropertyName);
return(members.Length == 0 ? null : members[0]);
}
protected override Expression VisitModelMember(ModelExpression.ModelMemberExpression m)
{
base.VisitModelMember(m);
ModelStep step;
if (steps.TryGetValue(m.Expression, out step) && !(step.Property is ModelValueProperty))
{
// Get the model type of the parent expression
var type = step.Property == null ? path.RootType : ((ModelReferenceProperty)step.Property).PropertyType;
// Make sure the type of the expression matches the declaring type of the property
if (type != m.Property.DeclaringType && !m.Property.DeclaringType.IsSubType(type))
return m;
// Determine if the member access represents a property on the model type
var property = m.Property;
// Create and record a new step
var nextStep = step.NextSteps.FirstOrDefault(s => s.Property == property);
if (nextStep == null)
{
nextStep = new ModelStep(path) { Property = property, PreviousStep = step };
step.NextSteps.Add(nextStep);
}
if (!steps.ContainsKey(m))
steps.Add(m, nextStep);
}
return m;
}
public ValidationRule(string rootType, string property, string errorName, ModelExpression validationExpression, ModelExpression errorMessageExpression)
: base(rootType, property, new Error(GetErrorCode(rootType, property, errorName), "Invalid", null), RuleInvocationType.InitNew | RuleInvocationType.PropertyChanged, property)
{
this.validationExpression = validationExpression;
this.errorMessageExpression = errorMessageExpression;
Initialize += (s, e) => InitializeExpressions();
}
public async Task ProcessAsync_GeneratesExpectedOutput_WithDisplayName(
string displayName,
string originalChildContent,
string htmlFieldPrefix,
string expectedContent,
string expectedId)
{
// Arrange
var expectedAttributes = new TagHelperAttributeList
{
{ "for", expectedId }
};
var name = nameof(NestedModel.Text);
var metadataProvider = new TestModelMetadataProvider();
metadataProvider
.ForProperty <NestedModel>(name)
.DisplayDetails(metadata => metadata.DisplayName = () => displayName);
var htmlGenerator = new TestableHtmlGenerator(metadataProvider);
var viewContext = TestableHtmlGenerator.GetViewContext(
model: null,
htmlGenerator: htmlGenerator,
metadataProvider: metadataProvider);
var viewData = new ViewDataDictionary <NestedModel>(metadataProvider, viewContext.ModelState);
viewData.TemplateInfo.HtmlFieldPrefix = htmlFieldPrefix;
viewContext.ViewData = viewData;
var containerExplorer = metadataProvider.GetModelExplorerForType(typeof(NestedModel), model: null);
var modelExplorer = containerExplorer.GetExplorerForProperty(name);
var modelExpression = new ModelExpression(name, modelExplorer);
var tagHelper = new LabelTagHelper(htmlGenerator)
{
For = modelExpression,
ViewContext = viewContext,
};
var tagHelperContext = new TagHelperContext(
tagName: "label",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"label",
new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.AppendHtml(originalChildContent);
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
// Act
await tagHelper.ProcessAsync(tagHelperContext, output);
// Assert
Assert.Equal(expectedAttributes, output.Attributes);
Assert.Equal(expectedContent, HtmlContentUtilities.HtmlContentToString(output.Content));
}
/*==========================================================================================================================
| METHOD: INVOKE
\-------------------------------------------------------------------------------------------------------------------------*/
/// <summary>
/// Provides a dropdown list of metadata associated with the bound property.
/// </summary>
public IViewComponentResult Invoke(
ModelExpression aspFor,
string htmlFieldPrefix
)
{
/*------------------------------------------------------------------------------------------------------------------------
| Establish variables
\-----------------------------------------------------------------------------------------------------------------------*/
//### TODO JJC20191119: Ideally, these would be configured as optional parameters. Unfortunately, the tag helper approach
//to calling view components doesn't (yet) support optional parameters. These should be reevaluated if that's fixed. For
//now, it's not strictly required by current requirements that these be overwritten by the views.
var defaultText = "Select one…";
var valueField = nameof(Topic.Title);
var textField = nameof(Topic.Title);
/*------------------------------------------------------------------------------------------------------------------------
| Get metadata attribute
\-----------------------------------------------------------------------------------------------------------------------*/
var modelMetadata = aspFor.Metadata;
var currentProperty = modelMetadata.ContainerType.GetProperty(modelMetadata.Name);
var propertyAttributes = currentProperty.GetCustomAttributes(typeof(MetadataAttribute), true);
var metadataAttribute = propertyAttributes.FirstOrDefault() as MetadataAttribute;
var metadataKey = $"Configuration:Metadata:{metadataAttribute?.Key}:LookupList";
/*------------------------------------------------------------------------------------------------------------------------
| Set HTML field prefix
\-----------------------------------------------------------------------------------------------------------------------*/
var templateInfo = ViewData.TemplateInfo;
if (String.IsNullOrEmpty(templateInfo.HtmlFieldPrefix)) {
templateInfo.HtmlFieldPrefix = htmlFieldPrefix;
}
if (!templateInfo.HtmlFieldPrefix.EndsWith(modelMetadata.Name, StringComparison.InvariantCulture)) {
templateInfo.HtmlFieldPrefix = templateInfo.GetFullHtmlFieldName(modelMetadata.Name);
}
/*------------------------------------------------------------------------------------------------------------------------
| Lookup metadata values
\-----------------------------------------------------------------------------------------------------------------------*/
var metadataList = _topicRepository.Load(metadataKey)?.Children?? new TopicCollection();
var selectList = new SelectList(metadataList, valueField, textField, aspFor.Model?.ToString());
/*------------------------------------------------------------------------------------------------------------------------
| Validate metadata
\-----------------------------------------------------------------------------------------------------------------------*/
if (metadataAttribute == null) {
throw new InvalidOperationException(
$"The {aspFor.Metadata.PropertyName} must be decorated with the [Metadata()] attribute."
);
}
else if (metadataList.Count == 0) {
throw new InvalidOperationException(
$"The {aspFor.Metadata.PropertyName} is bound to the {metadataAttribute.Key} metadata, but the lookup list " +
$"contains no topics."
);
}
/*------------------------------------------------------------------------------------------------------------------------
| Create view model
\-----------------------------------------------------------------------------------------------------------------------*/
var model = new MetadataLookupViewModel() {
Options = selectList,
DefaultText = defaultText,
Value = aspFor.Model?.ToString(),
IsRequired = modelMetadata.IsRequired
};
/*------------------------------------------------------------------------------------------------------------------------
| Return the corresponding view
\-----------------------------------------------------------------------------------------------------------------------*/
return View(model);
}
protected virtual async Task ProcessInputGroupAsync(TagHelperContext context, TagHelperOutput output, ModelExpression model)
{
var abpInputTagHelper = _serviceProvider.GetRequiredService <AbpInputTagHelper>();
abpInputTagHelper.AspFor = model;
abpInputTagHelper.ViewContext = TagHelper.ViewContext;
abpInputTagHelper.DisplayRequiredSymbol = TagHelper.RequiredSymbols ?? true;
await abpInputTagHelper.RenderAsync(new TagHelperAttributeList(), context, _htmlEncoder, "div", TagMode.StartTagAndEndTag).ConfigureAwait(false);
}
public async Task ProcessAsync_WithItems_GeneratesExpectedOutput_DoesNotChangeSelectList(
object model,
Type containerType,
Func <object> modelAccessor,
NameAndId nameAndId,
string expectedOptions)
{
// Arrange
var originalAttributes = new TagHelperAttributeList
{
{ "class", "form-control" },
};
var originalPostContent = "original content";
var expectedAttributes = new TagHelperAttributeList(originalAttributes)
{
{ "id", nameAndId.Id },
{ "name", nameAndId.Name },
{ "valid", "from validation attributes" },
};
var expectedPreContent = "original pre-content";
var expectedContent = "original content";
var expectedPostContent = originalPostContent + expectedOptions;
var expectedTagName = "select";
var metadataProvider = new TestModelMetadataProvider();
var containerMetadata = metadataProvider.GetMetadataForType(containerType);
var containerExplorer = metadataProvider.GetModelExplorerForType(containerType, model);
var propertyMetadata = metadataProvider.GetMetadataForProperty(containerType, "Text");
var modelExplorer = containerExplorer.GetExplorerForExpression(propertyMetadata, modelAccessor());
var modelExpression = new ModelExpression(nameAndId.Name, modelExplorer);
var tagHelperContext = new TagHelperContext(
allAttributes: new ReadOnlyTagHelperAttributeList <IReadOnlyTagHelperAttribute>(
Enumerable.Empty <IReadOnlyTagHelperAttribute>()),
items: new Dictionary <object, object>(),
uniqueId: "test",
getChildContentAsync: () =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var output = new TagHelperOutput(expectedTagName, originalAttributes)
{
SelfClosing = true,
};
output.PreContent.SetContent(expectedPreContent);
output.Content.SetContent(expectedContent);
output.PostContent.SetContent(originalPostContent);
var htmlGenerator = new TestableHtmlGenerator(metadataProvider)
{
ValidationAttributes =
{
{ "valid", "from validation attributes" },
}
};
var viewContext = TestableHtmlGenerator.GetViewContext(model, htmlGenerator, metadataProvider);
var items = new SelectList(new[] { "", "outer text", "inner text", "other text" });
var savedDisabled = items.Select(item => item.Disabled).ToList();
var savedGroup = items.Select(item => item.Group).ToList();
var savedSelected = items.Select(item => item.Selected).ToList();
var savedText = items.Select(item => item.Text).ToList();
var savedValue = items.Select(item => item.Value).ToList();
var tagHelper = new SelectTagHelper(htmlGenerator)
{
For = modelExpression,
Items = items,
ViewContext = viewContext,
};
// Act
await tagHelper.ProcessAsync(tagHelperContext, output);
// Assert
Assert.True(output.SelfClosing);
Assert.Equal(expectedAttributes, output.Attributes);
Assert.Equal(expectedPreContent, output.PreContent.GetContent());
Assert.Equal(expectedContent, output.Content.GetContent());
Assert.Equal(expectedPostContent, output.PostContent.GetContent());
Assert.Equal(expectedTagName, output.TagName);
Assert.NotNull(viewContext.FormContext?.FormData);
Assert.Single(
viewContext.FormContext.FormData,
entry => entry.Key == SelectTagHelper.SelectedValuesFormDataKey);
Assert.Equal(savedDisabled, items.Select(item => item.Disabled));
Assert.Equal(savedGroup, items.Select(item => item.Group));
Assert.Equal(savedSelected, items.Select(item => item.Selected));
Assert.Equal(savedText, items.Select(item => item.Text));
Assert.Equal(savedValue, items.Select(item => item.Value));
}
public async Task ProcessAsync_GeneratesExpectedOutput(
object model,
Type containerType,
Func <object> modelAccessor,
string propertyPath,
TagHelperOutputContent tagHelperOutputContent)
{
// Arrange
var expectedTagName = "not-label";
var expectedAttributes = new TagHelperAttributeList
{
{ "class", "form-control" },
{ "for", tagHelperOutputContent.ExpectedId }
};
var metadataProvider = new TestModelMetadataProvider();
var containerMetadata = metadataProvider.GetMetadataForType(containerType);
var containerExplorer = metadataProvider.GetModelExplorerForType(containerType, model);
var propertyMetadata = metadataProvider.GetMetadataForProperty(containerType, "Text");
var modelExplorer = containerExplorer.GetExplorerForExpression(propertyMetadata, modelAccessor());
var htmlGenerator = new TestableHtmlGenerator(metadataProvider);
var modelExpression = new ModelExpression(propertyPath, modelExplorer);
var tagHelper = new LabelTagHelper(htmlGenerator)
{
For = modelExpression,
};
var expectedPreContent = "original pre-content";
var expectedPostContent = "original post-content";
var tagHelperContext = new TagHelperContext(
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var htmlAttributes = new TagHelperAttributeList
{
{ "class", "form-control" },
};
var output = new TagHelperOutput(
expectedTagName,
htmlAttributes,
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.AppendHtml(tagHelperOutputContent.OriginalChildContent);
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
output.PreContent.AppendHtml(expectedPreContent);
output.PostContent.AppendHtml(expectedPostContent);
// LabelTagHelper checks IsContentModified so we don't want to forcibly set it if
// tagHelperOutputContent.OriginalContent is going to be null or empty.
if (!string.IsNullOrEmpty(tagHelperOutputContent.OriginalContent))
{
output.Content.AppendHtml(tagHelperOutputContent.OriginalContent);
}
var viewContext = TestableHtmlGenerator.GetViewContext(model, htmlGenerator, metadataProvider);
tagHelper.ViewContext = viewContext;
// Act
await tagHelper.ProcessAsync(tagHelperContext, output);
// Assert
Assert.Equal(expectedAttributes, output.Attributes);
Assert.Equal(expectedPreContent, output.PreContent.GetContent());
Assert.Equal(
tagHelperOutputContent.ExpectedContent,
HtmlContentUtilities.HtmlContentToString(output.Content));
Assert.Equal(expectedPostContent, output.PostContent.GetContent());
Assert.Equal(TagMode.StartTagAndEndTag, output.TagMode);
Assert.Equal(expectedTagName, output.TagName);
}
public async Task <IHtmlContent> Invoke(ModelExpression expression, O options, ContextualizedHelpers helpers, string overridePrefix = null, object data = null)
{
if (expression == null)
{
throw new ArgumentNullException(nameof(expression));
}
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
ModelExplorer model = expression.ModelExplorer;
if (Type == TemplateType.Partial)
{
if (helpers == null)
{
throw new ArgumentNullException(nameof(helpers));
}
var h = helpers.Html;
var origVd = helpers.Context.ViewData;
if (h == null)
{
throw new ArgumentNullException(nameof(h));
}
var fatherPrefix = (origVd[RenderingScope.Field] as RenderingScope)?.FatherPrefix;
var vd = new ViewDataDictionary <object>(origVd);
vd.Model = model.Model;
vd.ModelExplorer = model.GetExplorerForModel(model.Model);
if (overridePrefix != null)
{
vd.TemplateInfo.HtmlFieldPrefix = combinePrefixes(overridePrefix, expression.Name);
}
else
{
vd.TemplateInfo.HtmlFieldPrefix = origVd.GetFullHtmlFieldName(combinePrefixes(fatherPrefix, expression.Name));
}
vd["Options"] = options;
vd["ContextualizedHelpers"] = helpers;
vd["LocalizerFactory"] = helpers.LocalizerFactory;
if (data != null)
{
vd["ExtraData"] = data;
}
vd.Remove(RenderingScope.Field);
return(await h.PartialAsync(TemplateName, model.Model, vd));
}
else if (Type == TemplateType.ViewComponent)
{
if (helpers == null)
{
throw new ArgumentNullException(nameof(helpers));
}
var origVd = helpers.Context.ViewData;
var fatherPrefix = (origVd[RenderingScope.Field] as RenderingScope)?.FatherPrefix;
if (data != null)
{
return(await helpers.Component.InvokeAsync(TemplateName, new
{
model = model.Model,
options = options,
prefix = overridePrefix != null ? combinePrefixes(overridePrefix, expression.Name) : origVd.GetFullHtmlFieldName(combinePrefixes(fatherPrefix, expression.Name)),
modelState = origVd.ModelState,
extraData = data
}));
}
else
{
return(await helpers.Component.InvokeAsync(TemplateName, new {
model = model.Model,
options = options,
prefix = overridePrefix != null ? combinePrefixes(overridePrefix, expression.Name) : origVd.GetFullHtmlFieldName(combinePrefixes(fatherPrefix, expression.Name)),
modelState = origVd.ModelState
}));
}
}
else if (Type == TemplateType.InLine)
{
var res = helpers.GetCachedTemplateResult(this);
if (res != null)
{
return(res);
}
using (await Lock.LockAsync())
{
originalContext.HttpContext = helpers.CurrentHttpContext;
var origVd = originalContext.ViewData;
using (new TagHelpersProviderContext(OriginalProvider, originalContext))
{
using (new RenderingScope(
expression.Model,
overridePrefix != null ? combinePrefixes(overridePrefix, expression.Name) : helpers.Context.ViewData.GetFullHtmlFieldName(expression.Name),
origVd,
options))
{
return(FTemplate(model.Model, default(O), helpers));
}
}
}
}
else
{
if (helpers == null)
{
throw new ArgumentNullException(nameof(helpers));
}
var origVd = helpers.Context.ViewData;
using (new RenderingScope(
expression.Model,
origVd,
expression.Name,
options))
{
return(FTemplate(model.Model, options, helpers));
}
}
}
/// <summary>
/// 初始化
/// </summary>
/// <param name="expression">属性表达式</param>
/// <param name="config">配置</param>
public static void Init(ModelExpression expression, TextBoxConfig config)
{
new TextBoxExpressionResolver(expression, config).Init();
}
protected TagHelperOutput GenerateTagHelperCore(ModelExpression f, TagHelper tagHelper, string tagName, TagMode tagMode) => GenerateTagHelperCore(f, tagHelper, tagName, tagMode, "text", styles.FormControl);
public async Task ProcessAsyncInTemplate_WithItems_GeneratesExpectedOutput_DoesNotChangeSelectList(
object model,
Type containerType,
Func <object> modelAccessor,
NameAndId nameAndId,
string expectedOptions)
{
// Arrange
var originalAttributes = new TagHelperAttributeList
{
{ "class", "form-control" },
};
var originalPostContent = "original content";
var expectedAttributes = new TagHelperAttributeList(originalAttributes)
{
{ "id", nameAndId.Id },
{ "name", nameAndId.Name },
{ "valid", "from validation attributes" },
};
var expectedPreContent = "original pre-content";
var expectedContent = "original content";
var expectedPostContent = originalPostContent + expectedOptions;
var expectedTagName = "select";
var metadataProvider = new TestModelMetadataProvider();
var containerMetadata = metadataProvider.GetMetadataForType(containerType);
var containerExplorer = metadataProvider.GetModelExplorerForType(containerType, model);
var propertyMetadata = metadataProvider.GetMetadataForProperty(containerType, "Text");
var modelExplorer = containerExplorer.GetExplorerForExpression(propertyMetadata, modelAccessor());
var modelExpression = new ModelExpression(name: string.Empty, modelExplorer: modelExplorer);
var tagHelperContext = new TagHelperContext(
tagName: "select",
allAttributes: new TagHelperAttributeList(
Enumerable.Empty <TagHelperAttribute>()),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
expectedTagName,
originalAttributes,
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.AppendHtml("Something");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
})
{
TagMode = TagMode.SelfClosing,
};
output.PreContent.AppendHtml(expectedPreContent);
output.Content.AppendHtml(expectedContent);
output.PostContent.AppendHtml(originalPostContent);
var htmlGenerator = new TestableHtmlGenerator(metadataProvider)
{
ValidationAttributes =
{
{ "valid", "from validation attributes" },
}
};
var viewContext = TestableHtmlGenerator.GetViewContext(model, htmlGenerator, metadataProvider);
viewContext.ViewData.TemplateInfo.HtmlFieldPrefix = nameAndId.Name;
var items = new SelectList(new[] { "", "outer text", "inner text", "other text" });
var savedDisabled = items.Select(item => item.Disabled).ToList();
var savedGroup = items.Select(item => item.Group).ToList();
var savedSelected = items.Select(item => item.Selected).ToList();
var savedText = items.Select(item => item.Text).ToList();
var savedValue = items.Select(item => item.Value).ToList();
var tagHelper = new SelectTagHelper(htmlGenerator)
{
For = modelExpression,
Items = items,
ViewContext = viewContext,
};
// Act
tagHelper.Init(tagHelperContext);
await tagHelper.ProcessAsync(tagHelperContext, output);
// Assert
Assert.Equal(TagMode.SelfClosing, output.TagMode);
Assert.Equal(expectedAttributes, output.Attributes);
Assert.Equal(expectedPreContent, output.PreContent.GetContent());
Assert.Equal(expectedContent, output.Content.GetContent());
Assert.Equal(expectedPostContent, HtmlContentUtilities.HtmlContentToString(output.PostContent));
Assert.Equal(expectedTagName, output.TagName);
Assert.Single(
tagHelperContext.Items,
entry => (Type)entry.Key == typeof(SelectTagHelper));
Assert.Equal(savedDisabled, items.Select(item => item.Disabled));
Assert.Equal(savedGroup, items.Select(item => item.Group));
Assert.Equal(savedSelected, items.Select(item => item.Selected));
Assert.Equal(savedText, items.Select(item => item.Text));
Assert.Equal(savedValue, items.Select(item => item.Value));
}
public virtual TagBuilder GenerateCheckboxLabel(ModelExpression f) =>
generator.GenerateLabel(viewContext, f.ModelExplorer, f.Name, null, new { @class = styles.CheckLabel });
public async Task TagHelper_CallsGeneratorWithExpectedValues_RealModelType(
Type modelType,
object model,
bool allowMultiple)
{
// Arrange
var contextAttributes = new TagHelperAttributeList(
Enumerable.Empty <TagHelperAttribute>());
var originalAttributes = new TagHelperAttributeList();
var propertyName = "Property1";
var tagName = "select";
var tagHelperContext = new TagHelperContext(
tagName: "select",
allAttributes: contextAttributes,
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
tagName,
originalAttributes,
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var metadataProvider = new EmptyModelMetadataProvider();
var modelExplorer = metadataProvider.GetModelExplorerForType(modelType, model);
var modelExpression = new ModelExpression(propertyName, modelExplorer);
var htmlGenerator = new Mock <IHtmlGenerator>(MockBehavior.Strict);
var viewContext = TestableHtmlGenerator.GetViewContext(model, htmlGenerator.Object, metadataProvider);
var currentValues = new string[0];
htmlGenerator
.Setup(real => real.GetCurrentValues(
viewContext,
modelExplorer,
propertyName, // expression
allowMultiple))
.Returns(currentValues)
.Verifiable();
htmlGenerator
.Setup(real => real.GenerateSelect(
viewContext,
modelExplorer,
null, // optionLabel
propertyName, // expression
It.IsAny <IEnumerable <SelectListItem> >(),
currentValues,
allowMultiple,
null)) // htmlAttributes
.Returns((TagBuilder)null)
.Verifiable();
var tagHelper = new SelectTagHelper(htmlGenerator.Object)
{
For = modelExpression,
ViewContext = viewContext,
};
// Act
tagHelper.Init(tagHelperContext);
await tagHelper.ProcessAsync(tagHelperContext, output);
// Assert
htmlGenerator.Verify();
var keyValuePair = Assert.Single(
tagHelperContext.Items,
entry => (Type)entry.Key == typeof(SelectTagHelper));
var actualCurrentValues = Assert.IsType <CurrentValues>(keyValuePair.Value);
Assert.Same(currentValues, actualCurrentValues.Values);
}
public TagBuilder GenerateValidation(ModelExpression f) =>
generator.GenerateValidationMessage(viewContext, f.ModelExplorer, f.Name, null, null, new { @class = styles.Validation });
/// <summary>
/// 初始化
/// </summary>
/// <param name="expression">属性表达式</param>
/// <param name="config">配置</param>
public static void Init(ModelExpression expression, IConfig config)
{
new LabelExpressionResolver(expression, config).Init();
}
/// <summary>
/// 初始化
/// </summary>
/// <param name="expression">属性表达式</param>
/// <param name="config">配置</param>
/// <param name="isTableEdit">是否表格编辑</param>
public static void Init(ModelExpression expression, SelectConfig config, bool isTableEdit = false)
{
new SelectExpressionResolver(expression, config, isTableEdit).Init();
}
protected override Expression VisitModelCastExpression(ModelExpression.ModelCastExpression m)
{
// Visit the target of the method
Visit(m.Expression.Object);
// Process arguments to method calls to handle lambda expressions
foreach (var argument in m.Expression.Arguments)
{
// Perform special logic for lambdas
if (argument is LambdaExpression || argument is ModelExpression.ModelLambdaExpression)
{
// Get the target of the method, assuming for static methods it will be the first argument
// This handles the common case of extension methods, whose first parameter must be the target instance
var target = m.Expression.Object ?? m.Expression.Arguments.First();
// Determine if the target implements IEnumerable<T>, and if so, determine the type of T
var listType = target.Type.IsGenericType && target.Type.GetGenericTypeDefinition() == typeof(IEnumerable<>) ? target.Type :
target.Type.GetInterfaces().Where(i => i.IsGenericType && i.GetGenericTypeDefinition() == typeof(IEnumerable<>)).FirstOrDefault();
// If the instance or first parameter to a static method is represented in the expression path,
// the corresponding step is a reference list, and the lambda is an action or function accepting instances
// from the list, assume that each instance in the list will be passed to the lambda expression
ModelStep step;
if (listType != null && steps.TryGetValue(target, out step) && step.Property is ModelReferenceProperty && step.Property.IsList)
{
// Find the parameter that will be passed elements from the list, and link it to the parent step
var parameters = argument is LambdaExpression ?
(IEnumerable<Expression>)((LambdaExpression)argument).Parameters :
(IEnumerable<Expression>)((ModelExpression.ModelLambdaExpression)argument).Parameters;
var element = parameters.FirstOrDefault(p => listType.GetGenericArguments()[0].IsAssignableFrom(p.Type));
if (element != null)
steps.Add(element, step);
// If the method return the original list, associate the step with the return value
if (m.Type.IsAssignableFrom(target.Type))
steps.Add(m, step);
}
}
Visit(argument);
}
return m;
}
/// <summary>
/// Allows or blocks the display of a textbox depending on user authorization level.
/// </summary>
/// <typeparam name="TModel"></typeparam>
/// <typeparam name="TProperty"></typeparam>
/// <param name="htmlHelper"></param>
/// <param name="expression"></param>
/// <param name="fieldRequiredPrivilege">Privilege needed to show the field</param>
/// <param name="readOnlyBehaviour">Behavior of the field if not authorized</param>
/// <param name="linkRequiredPrivilege">Privilege needed to navigate to the link destination</param>
/// <param name="linkAuthFailedBehaviour">Behavior of the link text if not authorized</param>
/// <param name="actionName">Action destination of the link</param>
/// <param name="controllerName">Controller destination of the link</param>
/// <param name="routeValues">Route values of the link</param>
/// <param name="htmlAttributes"></param>
/// <param name="forceReadOnly">(Optional) Force the field into read-only mode regardless of authorization</param>
/// /// <param name="formatString">(Optional) String used to format the value of the control</param>
/// <returns></returns>
public static IHtmlContent TextBoxForAuth <TModel, TProperty>(this IHtmlHelper <TModel> htmlHelper, Expression <Func <TModel, TProperty> > expression, Enumerations.Role fieldRequiredPrivilege, Enumerations.ReadOnlyBehaviour readOnlyBehaviour, Enumerations.Role?linkRequiredPrivilege, Enumerations.AuthFailedBehaviour?linkAuthFailedBehaviour, string actionName, string controllerName, object routeValues, object htmlAttributes, string formatString = null, bool forceReadOnly = false)
{
// If user has no privileges refuse access
bool fullAccess = !forceReadOnly && new UserSessionContext(htmlHelper.GetHttpContext()).UserHasAccess(fieldRequiredPrivilege);
string controlId = htmlHelper.GetControlId(expression);
ModelExpression modelExpression = htmlHelper.GetModelExpressionProvider().CreateModelExpression(htmlHelper.ViewData, expression);
var expressionValue = modelExpression.Model;
string stringValue = expressionValue == null ? "" : expressionValue.ToString();
if (formatString != null)
{
stringValue = string.Format(formatString, expressionValue);
}
string html = htmlHelper.TextBox(controlId, stringValue, htmlAttributes).ToString();
if (!fullAccess)
{
switch (readOnlyBehaviour)
{
case Enumerations.ReadOnlyBehaviour.Disabled:
var htmlOptions = new RouteValueDictionary(htmlAttributes);
if (!htmlOptions.ContainsKey("disabled"))
{
htmlOptions.Add("disabled", "disabled");
}
else
{
htmlOptions["disabled"] = "disabled";
}
html = htmlHelper.TextBox(controlId + "__text", stringValue, htmlOptions).ToString();
html += htmlHelper.HiddenFor(expression).ToString();
break;
case Enumerations.ReadOnlyBehaviour.EmptyString:
html = htmlHelper.HiddenFor(expression).ToString();
break;
case Enumerations.ReadOnlyBehaviour.InnerHtml:
html = htmlHelper.SpanFor(expression, htmlAttributes, formatString).ToString();
html += htmlHelper.HiddenFor(expression).ToString();
break;
case Enumerations.ReadOnlyBehaviour.AuthorizationLink:
if (!linkAuthFailedBehaviour.HasValue || !linkRequiredPrivilege.HasValue)
{
throw new ArgumentNullException("linkAuthFailedBehaviour", "linkAuthFailedBehaviour or linkRequiredPrivilege cannot be null");
}
html = htmlHelper.ActionLinkAuth(linkRequiredPrivilege.Value, linkAuthFailedBehaviour.Value, stringValue, actionName, routeValues, htmlAttributes).ToString();
html += htmlHelper.HiddenFor(expression).ToString();
break;
default:
throw new ArgumentOutOfRangeException("readOnlyBehaviour");
}
}
return(new HtmlString(html));
}
protected override Expression VisitModelParameter(ModelExpression.ModelParameterExpression p)
{
// Add the root step
if (rootStep == null)
{
rootStep = new ModelStep(path);
steps.Add(p, rootStep);
}
return p;
}
protected virtual async Task ProcessSelectGroupAsync(TagHelperContext context, TagHelperOutput output, ModelExpression model)
{
var abpSelectTagHelper = GetSelectGroupTagHelper(context, output, model);
await abpSelectTagHelper.RenderAsync(new TagHelperAttributeList(), context, _htmlEncoder, "div", TagMode.StartTagAndEndTag).ConfigureAwait(false);
}
public RangeRule(string rootType, string property, ModelExpression minimum, ModelExpression maximum, string errorMessage)
: base(rootType, property, new Error(GetErrorCode(rootType, property, "Range"), errorMessage, null), RuleInvocationType.InitNew | RuleInvocationType.PropertyChanged, property)
{
Initialize += (s, e) => SetRange(minimum, maximum);
}
void InitializeSource(string source, LambdaExpression expression)
{
// Store the source
this.Source = source;
// Initialize the source during the rule initialization phase
Initialize += (s, e) =>
{
var rootType = RootType;
var property = Property;
// First, see if an explicit expression was specified for the rule source
if (expression != null)
{
this.expression = expression;
var sourceExpression = new ModelExpression(rootType, expression);
Path = sourceExpression.Path.Path;
}
// Then see if the source represents a simple model source path
else if (ModelSource.TryGetSource(RootType, source, out modelSource))
Path = modelSource.IsStatic ? "" : modelSource.Path;
// Then see if the source is a valid model expression
else
{
sourceType = property is ModelValueProperty ?
typeof(IEnumerable<>).MakeGenericType(((ModelValueProperty)property).PropertyType) :
((ModelReferenceProperty)property).PropertyType is IReflectionModelType ?
typeof(IEnumerable<>).MakeGenericType(((IReflectionModelType)((ModelReferenceProperty)property).PropertyType).UnderlyingType)
: typeof(IEnumerable);
var sourceExpression = rootType.GetExpression(sourceType, source);
Path = sourceExpression.Path.Path;
}
// Set the predicates based on the property and model path
Predicates = String.IsNullOrEmpty(Path) ? new string[] { property.Name } : new string[] { property.Name, Path };
};
}
