public DropdownButtonFormField(
Key key = null,
T value = null,
List <DropdownMenuItem <T> > items = null,
ValueChanged <T> onChanged = null,
InputDecoration decoration = null,
FormFieldSetter <T> onSaved = null,
FormFieldValidator <T> validator = null,
Widget hint = null
) : base(
key: key,
onSaved: onSaved,
initialValue: value,
validator: validator,
builder: (FormFieldState <T> field) => {
InputDecoration effectiveDecoration = (decoration ?? new InputDecoration())
.applyDefaults(Theme.of(field.context).inputDecorationTheme);
return(new InputDecorator(
decoration: effectiveDecoration.copyWith(errorText: field.errorText),
isEmpty: value == null,
child: new DropdownButtonHideUnderline(
child: new DropdownButton <T>(
isDense: true,
value: value,
items: items,
hint: hint,
onChanged: field.didChange
)
)
));
}
) {
this.onChanged = onChanged;
}
protected internal virtual void parseValidation(Element formField, FormFieldHandler formFieldHandler, BpmnParse bpmnParse, ExpressionManager expressionManager)
{
Element validationElement = formField.elementNS(BpmnParse.CAMUNDA_BPMN_EXTENSIONS_NS, "validation");
if (validationElement != null)
{
IList <Element> constraintElements = validationElement.elementsNS(BpmnParse.CAMUNDA_BPMN_EXTENSIONS_NS, "constraint");
foreach (Element property in constraintElements)
{
FormFieldValidator validator = Context.ProcessEngineConfiguration.FormValidators.createValidator(property, bpmnParse, expressionManager);
string validatorName = property.attribute("name");
string validatorConfig = property.attribute("config");
if (validator != null)
{
FormFieldValidationConstraintHandler handler = new FormFieldValidationConstraintHandler();
handler.Name = validatorName;
handler.Config = validatorConfig;
handler.Validator = validator;
formFieldHandler.ValidationHandlers.Add(handler);
}
}
}
}
/// <summary>
/// factory method for creating validator instances
///
/// </summary>
public virtual FormFieldValidator createValidator(Element constraint, BpmnParse bpmnParse, ExpressionManager expressionManager)
{
string name = constraint.attribute("name");
string config = constraint.attribute("config");
if ("validator".Equals(name))
{
// custom validators
if (string.ReferenceEquals(config, null) || config.Length == 0)
{
bpmnParse.addError("validator configuration needs to provide either a fully " + "qualified classname or an expression resolving to a custom FormFieldValidator implementation.", constraint);
}
else
{
if (StringUtil.isExpression(config))
{
// expression
Expression validatorExpression = expressionManager.createExpression(config);
return(new DelegateFormFieldValidator(validatorExpression));
}
else
{
// classname
return(new DelegateFormFieldValidator(config));
}
}
}
else
{
// built-in validators
Type validator = validators[name];
if (validator != null)
{
FormFieldValidator validatorInstance = createValidatorInstance(validator);
return(validatorInstance);
}
else
{
bpmnParse.addError("Cannot find validator implementation for name '" + name + "'.", constraint);
}
}
return(null);
}
public FormField(
Key key = null,
FormFieldBuilder <T> builder = null,
FormFieldSetter <T> onSaved = null,
FormFieldValidator <T> validator = null,
T initialValue = null,
bool autovalidate = false,
bool enabled = true
) : base(key: key)
{
D.assert(builder != null);
this.onSaved = onSaved;
this.validator = validator;
this.builder = builder;
this.initialValue = initialValue;
this.autovalidate = autovalidate;
this.enabled = enabled;
}
public PasswordField(
Key fieldKey = null,
string hintText = null,
string labelText = null,
string helperText = null,
FormFieldSetter <string> onSaved = null,
FormFieldValidator <string> validator = null,
ValueChanged <string> onFieldSubmitted = null
)
{
this.fieldKey = fieldKey;
this.hintText = hintText;
this.labelText = labelText;
this.helperText = helperText;
this.onSaved = onSaved;
this.validator = validator;
this.onFieldSubmitted = onFieldSubmitted;
}
public TextFormField(
Key key = null,
TextEditingController controller = null,
string initialValue = null,
FocusNode focusNode = null,
InputDecoration decoration = null,
TextInputType keyboardType = null,
TextCapitalization textCapitalization = TextCapitalization.none,
TextInputAction?textInputAction = null,
TextStyle style = null,
TextDirection?textDirection = null,
TextAlign textAlign = TextAlign.left,
bool autofocus = false,
bool obscureText = false,
bool autocorrect = true,
bool autovalidate = false,
bool maxLengthEnforced = true,
int maxLines = 1,
int?maxLength = null,
VoidCallback onEditingComplete = null,
ValueChanged <string> onFieldSubmitted = null,
FormFieldSetter <string> onSaved = null,
FormFieldValidator <string> validator = null,
List <TextInputFormatter> inputFormatters = null,
bool enabled = true,
float cursorWidth = 2.0f,
Radius cursorRadius = null,
Color cursorColor = null,
Brightness?keyboardAppearance = null,
EdgeInsets scrollPadding = null,
bool enableInteractiveSelection = true,
InputCounterWidgetBuilder buildCounter = null
) : base(
key: key,
initialValue: controller != null ? controller.text : (initialValue ?? ""),
onSaved: onSaved,
validator: validator,
autovalidate: autovalidate,
enabled: enabled,
builder: (FormFieldState <string> field) => {
_TextFormFieldState state = (_TextFormFieldState)field;
InputDecoration effectiveDecoration = (decoration ?? new InputDecoration())
.applyDefaults(Theme.of(field.context).inputDecorationTheme);
return(new TextField(
controller: state._effectiveController,
focusNode: focusNode,
decoration: effectiveDecoration.copyWith(errorText: field.errorText),
keyboardType: keyboardType,
textInputAction: textInputAction,
style: style,
textAlign: textAlign,
textDirection: textDirection ?? TextDirection.ltr,
textCapitalization: textCapitalization,
autofocus: autofocus,
obscureText: obscureText,
autocorrect: autocorrect,
maxLengthEnforced: maxLengthEnforced,
maxLines: maxLines,
maxLength: maxLength,
onChanged: field.didChange,
onEditingComplete: onEditingComplete,
onSubmitted: onFieldSubmitted,
inputFormatters: inputFormatters,
enabled: enabled,
cursorWidth: cursorWidth,
cursorRadius: cursorRadius,
cursorColor: cursorColor,
scrollPadding: scrollPadding ?? EdgeInsets.all(20.0f),
keyboardAppearance: keyboardAppearance,
enableInteractiveSelection: enableInteractiveSelection,
buildCounter: buildCounter
));
}
) {
D.assert(initialValue == null || controller == null);
D.assert(maxLines > 0);
D.assert(maxLength == null || maxLength > 0);
this.controller = controller;
}
public FormFieldValidatorInvocation(FormFieldValidator formFieldValidator, object submittedValue, FormFieldValidatorContext validatorContext) : base(null, null)
{
this.formFieldValidator = formFieldValidator;
this.submittedValue = submittedValue;
this.validatorContext = validatorContext;
}
public TextFormField(
Key key = null,
TextEditingController controller = null,
string initialValue = null,
FocusNode focusNode = null,
InputDecoration decoration = null,
TextInputType keyboardType = null,
TextCapitalization textCapitalization = TextCapitalization.none,
TextInputAction?textInputAction = null,
TextStyle style = null,
StrutStyle strutStyle = null,
TextDirection?textDirection = null,
TextAlign textAlign = TextAlign.left,
TextAlignVertical textAlignVertical = null,
bool autofocus = false,
bool readOnly = false,
ToolbarOptions toolbarOptions = null,
bool?showCursor = null,
bool obscureText = false,
bool autocorrect = true,
SmartDashesType?smartDashesType = null,
SmartQuotesType?smartQuotesType = null,
bool enableSuggestions = true,
bool autovalidate = false,
bool maxLengthEnforced = true,
int?maxLines = 1,
int?minLines = null,
bool expands = false,
int?maxLength = null,
ValueChanged <string> onChanged = null,
GestureTapCallback onTap = null,
VoidCallback onEditingComplete = null,
ValueChanged <string> onFieldSubmitted = null,
FormFieldSetter <string> onSaved = null,
FormFieldValidator <string> validator = null,
List <TextInputFormatter> inputFormatters = null,
bool enabled = true,
float cursorWidth = 2.0f,
Radius cursorRadius = null,
Color cursorColor = null,
Brightness?keyboardAppearance = null,
EdgeInsets scrollPadding = null,
bool enableInteractiveSelection = true,
InputCounterWidgetBuilder buildCounter = null,
ScrollPhysics scrollPhysics = null
) : base(
key: key,
initialValue: controller != null ? controller.text : (initialValue ?? ""),
onSaved: onSaved,
validator: validator,
autovalidate: autovalidate,
enabled: enabled,
builder: (FormFieldState <string> field) => {
_TextFormFieldState state = (_TextFormFieldState)field;
InputDecoration effectiveDecoration = (decoration ?? new InputDecoration())
.applyDefaults(Theme.of(field.context).inputDecorationTheme);
void onChangedHandler(string value)
{
if (onChanged != null)
{
onChanged(value);
}
field.didChange(value);
}
return(new TextField(
controller: state._effectiveController,
focusNode: focusNode,
decoration: effectiveDecoration.copyWith(errorText: field.errorText),
keyboardType: keyboardType,
textInputAction: textInputAction,
style: style,
strutStyle: strutStyle,
textAlign: textAlign,
textAlignVertical: textAlignVertical,
textDirection: textDirection ?? TextDirection.ltr,
textCapitalization: textCapitalization,
autofocus: autofocus,
toolbarOptions: toolbarOptions,
readOnly: readOnly,
showCursor: showCursor,
obscureText: obscureText,
autocorrect: autocorrect,
smartDashesType: smartDashesType ??
(obscureText ? SmartDashesType.disabled : SmartDashesType.enabled),
smartQuotesType: smartQuotesType ??
(obscureText ? SmartQuotesType.disabled : SmartQuotesType.enabled),
enableSuggestions: enableSuggestions,
maxLengthEnforced: maxLengthEnforced,
maxLines: maxLines,
minLines: minLines,
expands: expands,
maxLength: maxLength,
onChanged: onChangedHandler,
onTap: onTap,
onEditingComplete: onEditingComplete,
onSubmitted: onFieldSubmitted,
inputFormatters: inputFormatters,
enabled: enabled,
cursorWidth: cursorWidth,
cursorRadius: cursorRadius,
cursorColor: cursorColor,
scrollPadding: scrollPadding ?? EdgeInsets.all(20.0f),
scrollPhysics: scrollPhysics,
keyboardAppearance: keyboardAppearance,
enableInteractiveSelection: enableInteractiveSelection,
buildCounter: buildCounter
));
}
) {
D.assert(initialValue == null || controller == null);
D.assert(maxLines > 0);
D.assert(maxLines == null || maxLines > 0);
D.assert(minLines == null || minLines > 0);
D.assert((maxLines == null) || (minLines == null) || (maxLines >= minLines),
() => "minLines can't be greater than maxLines");
D.assert(!expands || (maxLines == null && minLines == null),
() => "minLines and maxLines must be null when expands is true.");
D.assert(!obscureText || maxLines == 1, () => "Obscured fields cannot be multiline.");
D.assert(maxLength == null || maxLength > 0);
this.controller = controller;
}
