/// <summary>
/// Creates a text box.
/// </summary>
/// <param name="value">Do not pass null.</param>
/// <param name="rows">The number of rows in the text box.</param>
/// <param name="masksCharacters">Pass true to mask characters entered in the text box. Has no effect when there is more than one row in the text box.
/// </param>
/// <param name="maxLength">The maximum number of characters that can be entered in this text box.</param>
/// <param name="readOnly">Pass true to prevent the contents of the text box from being changed.</param>
/// <param name="disableBrowserAutoComplete">If true, prevents the browser from displaying values the user previously entered. Keep in mind that there is
/// currently an "arms race" taking place over forms auto-complete. Banks and other "high-security" organizations keep looking for ways to disable
/// auto-complete on their login forms while browsers and password managers are always trying to preserve this functionality for their users. Because of
/// this war, it's possible that your request to disable auto-complete will be ignored. See http://stackoverflow.com/a/23234498/35349 for more information.
/// </param>
/// <param name="suggestSpellCheck">By default, Firefox does not spell check single-line text boxes. By default, Firefox does spell check multi-line text
/// boxes. Setting this parameter to a value will set the spellcheck attribute on the text box to enable/disable spell checking, if the user agent supports
/// it.</param>
/// <param name="action">The action that will be performed when the user hits Enter on the text box or selects an auto-complete item.</param>
/// <param name="autoPostBack">Pass true to cause an action when the text box loses focus.</param>
public EwfTextBox(
string value, int rows = 1, bool masksCharacters = false, int?maxLength = null, bool readOnly = false, bool disableBrowserAutoComplete = false,
bool?suggestSpellCheck = null, FormAction action = null, bool autoPostBack = false)
{
this.rows = rows;
this.masksCharacters = masksCharacters;
this.maxLength = maxLength;
this.readOnly = readOnly;
this.disableBrowserAutoComplete = disableBrowserAutoComplete;
this.suggestSpellCheck = suggestSpellCheck;
if (value == null)
{
throw new ApplicationException("You cannot create a text box with a null value. Please use the empty string instead.");
}
formValue = new FormValue <string>(
() => value,
() => this.IsOnPage() ? UniqueID : "",
v => v,
rawValue =>
rawValue != null && (!readOnly || rawValue == formValue.GetDurableValue())
? PostBackValueValidationResult <string> .CreateValid(rawValue)
: PostBackValueValidationResult <string> .CreateInvalid());
this.action = action ?? FormState.Current.DefaultAction;
this.autoPostBack = autoPostBack;
}
/// <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);
}
