| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package org.apache.tapestry5.corelib.components; |
| |
| import java.text.DateFormat; |
| import java.text.ParseException; |
| import java.text.SimpleDateFormat; |
| import java.util.Date; |
| |
| import org.apache.tapestry5.Binding; |
| import org.apache.tapestry5.BindingConstants; |
| import org.apache.tapestry5.ComponentResources; |
| import org.apache.tapestry5.EventConstants; |
| import org.apache.tapestry5.FieldValidator; |
| import org.apache.tapestry5.MarkupWriter; |
| import org.apache.tapestry5.ValidationException; |
| import org.apache.tapestry5.annotations.Events; |
| import org.apache.tapestry5.annotations.Parameter; |
| import org.apache.tapestry5.corelib.base.AbstractField; |
| import org.apache.tapestry5.ioc.Messages; |
| import org.apache.tapestry5.ioc.internal.util.InternalUtils; |
| import org.apache.tapestry5.services.ComponentDefaultProvider; |
| |
| /** |
| * A component used to collect a provided date from the user using the native HTML5 date picker |
| * (<input type="date">) |
| * @tapestrydoc |
| * @see Form |
| * @see TextField |
| */ |
| @Events(EventConstants.VALIDATE) |
| public class Html5DateField extends AbstractField |
| { |
| |
| final private static String DATE_FORMAT = "yyyy-MM-dd"; |
| |
| /** |
| * The value parameter of a DateField must be a {@link java.util.Date}. |
| */ |
| @Parameter(required = true, principal = true, autoconnect = true) |
| private Date value; |
| |
| /** |
| * The object that will perform input validation (which occurs after translation). The translate binding prefix is |
| * generally used to provide this object in a declarative fashion. |
| */ |
| @Parameter(defaultPrefix = BindingConstants.VALIDATE) |
| private FieldValidator<Object> validate; |
| |
| /** |
| * Used to override the component's message catalog. |
| * |
| * @since 5.2.0.0 |
| * @deprecated Since 5.4; override the global message key "core-date-value-not-parsable" instead (see {@link org.apache.tapestry5.services.messages.ComponentMessagesSource}) |
| */ |
| @Parameter("componentResources.messages") |
| private Messages messages; |
| |
| /** |
| * Computes a default value for the "validate" parameter using {@link ComponentDefaultProvider}. |
| */ |
| final Binding defaultValidate() |
| { |
| return defaultProvider.defaultValidatorBinding("value", resources); |
| } |
| |
| void beginRender(MarkupWriter writer) |
| { |
| String value = validationTracker.getInput(this); |
| |
| if (value == null) |
| { |
| value = formatCurrentValue(); |
| } |
| |
| String clientId = getClientId(); |
| |
| writer.element("input", |
| |
| "type", "date", |
| |
| "class", cssClass, |
| |
| "name", getControlName(), |
| |
| "id", clientId, |
| |
| "value", value); |
| |
| writeDisabled(writer); |
| |
| putPropertyNameIntoBeanValidationContext("value"); |
| |
| validate.render(writer); |
| |
| removePropertyNameFromBeanValidationContext(); |
| |
| resources.renderInformalParameters(writer); |
| |
| decorateInsideField(); |
| |
| writer.end(); // input |
| |
| } |
| |
| private void writeDisabled(MarkupWriter writer) |
| { |
| if (isDisabled()) |
| writer.attributes("disabled", "disabled"); |
| } |
| |
| private String formatCurrentValue() |
| { |
| if (value == null) |
| return ""; |
| |
| return getDateFormat().format(value); |
| } |
| |
| private DateFormat getDateFormat() { |
| return new SimpleDateFormat(DATE_FORMAT); |
| } |
| |
| @Override |
| protected void processSubmission(String controlName) |
| { |
| String value = request.getParameter(controlName); |
| |
| validationTracker.recordInput(this, value); |
| |
| Date parsedValue = null; |
| |
| try |
| { |
| if (InternalUtils.isNonBlank(value)) |
| parsedValue = getDateFormat().parse(value); |
| } catch (ParseException ex) |
| { |
| validationTracker.recordError(this, messages.format("core-date-value-not-parseable", value)); |
| return; |
| } |
| |
| putPropertyNameIntoBeanValidationContext("value"); |
| try |
| { |
| fieldValidationSupport.validate(parsedValue, resources, validate); |
| |
| this.value = parsedValue; |
| } catch (ValidationException ex) |
| { |
| validationTracker.recordError(this, ex.getMessage()); |
| } |
| |
| removePropertyNameFromBeanValidationContext(); |
| } |
| |
| void injectResources(ComponentResources resources) |
| { |
| this.resources = resources; |
| } |
| |
| @Override |
| public boolean isRequired() |
| { |
| return validate.isRequired(); |
| } |
| } |