/// <summary>
/// Creates a checkbox.
/// </summary>
/// <param name="value"></param>
/// <param name="label">The checkbox label. Do not pass null. Pass an empty collection for no label.</param>
/// <param name="setup">The setup object for the checkbox.</param>
/// <param name="validationMethod">The validation method. Pass null if you’re only using this control for page modification.</param>
public Checkbox(
bool value, IReadOnlyCollection <PhrasingComponent> label, CheckboxSetup setup = null, Action <PostBackValue <bool>, Validator> validationMethod = null)
{
setup = setup ?? CheckboxSetup.Create();
var id = new ElementId();
var formValue = new FormValue <bool>(
() => value,
() => setup.IsReadOnly ? "" : id.Id,
v => v.ToString(),
rawValue => rawValue == null ? PostBackValueValidationResult <bool> .CreateValid(false) :
rawValue == "on" ? PostBackValueValidationResult <bool> .CreateValid(true) : PostBackValueValidationResult <bool> .CreateInvalid());
PageComponent = getComponent(
formValue,
id,
null,
setup.DisplaySetup,
setup.IsReadOnly,
setup.Classes,
setup.PageModificationValue,
label,
setup.Action,
setup.ValueChangedAction,
() => (setup.ValueChangedAction?.GetJsStatements() ?? "").ConcatenateWithSpace(
setup.PageModificationValue.GetJsModificationStatements("this.checked")));
formValue.AddPageModificationValue(setup.PageModificationValue, v => v);
if (validationMethod != null)
{
Validation = formValue.CreateValidation(validationMethod);
}
}
private EwfHiddenField(string value)
{
formValue = new FormValue <string>(
() => value,
() => UniqueID,
v => v,
rawValue =>
rawValue != null ? PostBackValueValidationResult <string> .CreateValidWithValue(rawValue) : PostBackValueValidationResult <string> .CreateInvalid());
}
/// <summary>
/// Creates a file-upload control.
/// </summary>
/// <param name="displaySetup"></param>
/// <param name="validationPredicate"></param>
/// <param name="validationErrorNotifier"></param>
/// <param name="validationMethod">The validation method. Pass null if you’re only using this control for page modification.</param>
public FileUpload(
DisplaySetup displaySetup = null, Func <bool, bool> validationPredicate = null, Action validationErrorNotifier = null,
Action <RsFile, Validator> validationMethod = null)
{
Labeler = new FormControlLabeler();
var id = new ElementId();
var formValue = new FormValue <HttpPostedFile>(
() => null,
() => id.Id,
v => "",
rawValue => rawValue == null
? PostBackValueValidationResult <HttpPostedFile> .CreateInvalid()
: PostBackValueValidationResult <HttpPostedFile> .CreateValid(rawValue.ContentLength > 0 ? rawValue : null));
PageComponent = new CustomPhrasingComponent(
new DisplayableElement(
context => {
id.AddId(context.Id);
Labeler.AddControlId(context.Id);
EwfPage.Instance.Form.Enctype = "multipart/form-data";
return(new DisplayableElementData(
displaySetup,
() => {
var attributes = new List <Tuple <string, string> >();
attributes.Add(Tuple.Create("type", "file"));
attributes.Add(Tuple.Create("name", context.Id));
return new DisplayableElementLocalData(
"input",
new FocusabilityCondition(true),
isFocused => {
if (isFocused)
{
attributes.Add(Tuple.Create("autofocus", "autofocus"));
}
return new DisplayableElementFocusDependentData(attributes: attributes);
});
}));
},
formValue: formValue).ToCollection());
if (validationMethod != null)
{
Validation = formValue.CreateValidation(
(postBackValue, validator) => {
if (validationPredicate != null && !validationPredicate(postBackValue.ChangedOnPostBack))
{
return;
}
validationMethod(getRsFile(postBackValue.Value), validator);
});
}
}
internal static FormValue <bool> GetFormValue(bool isChecked, Control checkBox)
{
return(new FormValue <bool>(() => isChecked,
() => checkBox.IsOnPage() ? checkBox.UniqueID : "",
v => v.ToString(),
rawValue =>
rawValue == null
? PostBackValueValidationResult <bool> .CreateValidWithValue(false)
: rawValue == "on" ? PostBackValueValidationResult <bool> .CreateValidWithValue(true) : PostBackValueValidationResult <bool> .CreateInvalid()));
}
public EwfFileUpload()
{
formValue = new FormValue <HttpPostedFile>(
() => null,
() => this.IsOnPage() ? UniqueID : "",
v => "",
rawValue =>
rawValue != null
? PostBackValueValidationResult <HttpPostedFile> .CreateValid(rawValue.ContentLength > 0 ? rawValue : null)
: PostBackValueValidationResult <HttpPostedFile> .CreateInvalid());
}
/// <summary>
/// Creates a hidden field.
/// </summary>
/// <param name="value">Do not pass null.</param>
/// <param name="id"></param>
/// <param name="pageModificationValue"></param>
/// <param name="validationMethod">The validation method. Pass null if you’re only using this control for page modification.</param>
/// <param name="jsInitStatementGetter">A function that takes the field’s ID and returns the JavaScript statements that should be executed when the DOM is
/// loaded. Do not return null.</param>
public EwfHiddenField(
string value, HiddenFieldId id = null, PageModificationValue <string> pageModificationValue = null,
Action <PostBackValue <string>, Validator> validationMethod = null, Func <string, string> jsInitStatementGetter = null)
{
pageModificationValue = pageModificationValue ?? new PageModificationValue <string>();
var elementId = new ElementId();
var formValue = new FormValue <string>(
() => value,
() => elementId.Id,
v => v,
rawValue => rawValue != null ? PostBackValueValidationResult <string> .CreateValid(rawValue) : PostBackValueValidationResult <string> .CreateInvalid());
component = new ElementComponent(
context => {
elementId.AddId(context.Id);
id?.AddId(context.Id);
return(new ElementData(
() => {
var attributes = new List <Tuple <string, string> >();
attributes.Add(Tuple.Create("type", "hidden"));
attributes.Add(Tuple.Create("name", context.Id));
attributes.Add(Tuple.Create("value", pageModificationValue.Value));
return new ElementLocalData(
"input",
focusDependentData: new ElementFocusDependentData(
attributes: attributes,
includeIdAttribute: id != null || pageModificationValue != null || jsInitStatementGetter != null,
jsInitStatements: StringTools.ConcatenateWithDelimiter(
" ",
pageModificationValue != null
? "$( '#{0}' ).change( function() {{ {1} }} );".FormatWith(
context.Id,
pageModificationValue.GetJsModificationStatements("$( this ).val()"))
: "",
jsInitStatementGetter?.Invoke(context.Id) ?? "")));
}));
},
formValue: formValue);
formValue.AddPageModificationValue(pageModificationValue, v => v);
if (validationMethod != null)
{
validation = formValue.CreateValidation(validationMethod);
}
}
internal static FormValue <CommonCheckBox> GetFormValue(
bool allowsNoSelection, Func <IEnumerable <CommonCheckBox> > allCheckBoxesGetter, Func <IEnumerable <CommonCheckBox> > checkedCheckBoxesGetter,
Func <CommonCheckBox, string> stringValueSelector, Func <string, IEnumerable <CommonCheckBox> > checkedCheckBoxesInPostBackGetter)
{
return(new FormValue <CommonCheckBox>(
() => checkedCheckBoxesGetter().FirstOrDefault(),
() => {
var firstCheckBoxOnPage = allCheckBoxesGetter().Select(i => (Control)i).FirstOrDefault(i => i.IsOnPage());
return firstCheckBoxOnPage != null ? firstCheckBoxOnPage.UniqueID : "";
},
stringValueSelector,
rawValue => {
if (rawValue != null)
{
var selectedButton = checkedCheckBoxesInPostBackGetter(rawValue).SingleOrDefault();
return selectedButton != null
? PostBackValueValidationResult <CommonCheckBox> .CreateValid(selectedButton)
: PostBackValueValidationResult <CommonCheckBox> .CreateInvalid();
}
return allowsNoSelection
? PostBackValueValidationResult <CommonCheckBox> .CreateValid(null)
: PostBackValueValidationResult <CommonCheckBox> .CreateInvalid();
}));
}
/// <summary>
/// Creates a simple HTML editor.
/// </summary>
/// <param name="value">Do not pass null.</param>
/// <param name="ckEditorConfiguration">A comma-separated list of CKEditor configuration options ("toolbar: [ [ 'Bold', 'Italic' ] ]", etc.). Use this to
/// customize the underlying CKEditor. Do not pass null.</param>
public WysiwygHtmlEditor(string value, string ckEditorConfiguration = "")
{
this.ckEditorConfiguration = ckEditorConfiguration;
formValue = new FormValue <string>(
() => value,
() => this.IsOnPage() ? UniqueID : "",
v => v,
rawValue => {
if (rawValue == null)
{
return(PostBackValueValidationResult <string> .CreateInvalid());
}
// This hack prevents the NewLine that CKEditor seems to always add to the end of the textarea from causing
// ValueChangedOnPostBack to always return true.
if (rawValue.EndsWith(Environment.NewLine) && rawValue.Remove(rawValue.Length - Environment.NewLine.Length) == formValue.GetDurableValue())
{
rawValue = formValue.GetDurableValue();
}
return(PostBackValueValidationResult <string> .CreateValidWithValue(rawValue));
});
}
/// <summary>
/// Creates a simple HTML editor.
/// </summary>
/// <param name="value">Do not pass null.</param>
/// <param name="allowEmpty"></param>
/// <param name="validationMethod">The validation method. Do not pass null.</param>
/// <param name="setup">The setup object for the HTML editor.</param>
/// <param name="maxLength"></param>
public WysiwygHtmlEditor(
string value, bool allowEmpty, Action <string, Validator> validationMethod, WysiwygHtmlEditorSetup setup = null, int?maxLength = null)
{
setup = setup ?? new WysiwygHtmlEditorSetup();
var id = new ElementId();
FormValue <string> formValue = null;
formValue = new FormValue <string>(
() => value,
() => setup.IsReadOnly ? "" : id.Id,
v => v,
rawValue => {
if (rawValue == null)
{
return(PostBackValueValidationResult <string> .CreateInvalid());
}
// This hack prevents the NewLine that CKEditor seems to always add to the end of the textarea from causing
// ValueChangedOnPostBack to always return true.
if (rawValue.EndsWith(Environment.NewLine) && rawValue.Remove(rawValue.Length - Environment.NewLine.Length) == formValue.GetDurableValue())
{
rawValue = formValue.GetDurableValue();
}
return(PostBackValueValidationResult <string> .CreateValid(rawValue));
});
var modificationValue = new PageModificationValue <string>();
component = new ElementComponent(
context => {
id.AddId(context.Id);
var displaySetup = setup.DisplaySetup ?? new DisplaySetup(true);
var jsShowStatements = getJsShowStatements(context.Id, setup.CkEditorConfiguration);
displaySetup.AddJsShowStatements(jsShowStatements);
displaySetup.AddJsHideStatements("CKEDITOR.instances.{0}.destroy(); $( '#{0}' ).css( 'display', 'none' );".FormatWith(context.Id));
return(new ElementData(
() => {
var attributes = new List <Tuple <string, string> >();
if (setup.IsReadOnly)
{
attributes.Add(Tuple.Create("disabled", "disabled"));
}
else
{
attributes.Add(Tuple.Create("name", context.Id));
}
if (!displaySetup.ComponentsDisplayed)
{
attributes.Add(Tuple.Create("style", "display: none"));
}
return new ElementLocalData(
"textarea",
attributes: attributes,
includeIdAttribute: true,
jsInitStatements: displaySetup.ComponentsDisplayed ? jsShowStatements : "");
},
children: new TextNode(() => EwfTextBox.GetTextareaValue(modificationValue.Value)).ToCollection()));
},
formValue: formValue);
validation = formValue.CreateValidation(
(postBackValue, validator) => {
if (setup.ValidationPredicate != null && !setup.ValidationPredicate(postBackValue.ChangedOnPostBack))
{
return;
}
var errorHandler = new ValidationErrorHandler("HTML");
var validatedValue = maxLength.HasValue
? validator.GetString(errorHandler, postBackValue.Value, allowEmpty, maxLength.Value)
: validator.GetString(errorHandler, postBackValue.Value, allowEmpty);
if (errorHandler.LastResult != ErrorCondition.NoError)
{
setup.ValidationErrorNotifier();
return;
}
validationMethod(validatedValue, validator);
});
formValue.AddPageModificationValue(modificationValue, v => v);
}
