/*
* Copyright 2009-2014 PrimeTek.
*
* 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.primefaces.component.inputtextarea;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.faces.event.PhaseId;
import org.primefaces.component.autocomplete.AutoComplete;
import org.primefaces.context.RequestContext;
import org.primefaces.event.AutoCompleteEvent;
import org.primefaces.expression.SearchExpressionFacade;
import org.primefaces.renderkit.InputRenderer;
import org.primefaces.util.ComponentUtils;
import org.primefaces.util.HTML;
import org.primefaces.util.WidgetBuilder;
public class InputTextareaRenderer extends InputRenderer {
@Override
public void decode(FacesContext context, UIComponent component) {
InputTextarea inputTextarea = (InputTextarea) component;
if(inputTextarea.isDisabled() || inputTextarea.isReadonly()) {
return;
}
decodeBehaviors(context, inputTextarea);
String clientId = inputTextarea.getClientId(context);
Map<String, String> params = context.getExternalContext().getRequestParameterMap();
String submittedValue = params.get(clientId);
inputTextarea.setSubmittedValue(submittedValue);
//AutoComplete event
String query = params.get(clientId + "_query");
if(query != null) {
AutoCompleteEvent autoCompleteEvent = new AutoCompleteEvent(inputTextarea, query);
autoCompleteEvent.setPhaseId(PhaseId.APPLY_REQUEST_VALUES);
inputTextarea.queueEvent(autoCompleteEvent);
}
}
@Override
public void encodeEnd(FacesContext context, UIComponent component) throws IOException {
InputTextarea inputTextarea = (InputTextarea) component;
Map<String, String> params = context.getExternalContext().getRequestParameterMap();
String query = params.get(inputTextarea.getClientId(context) + "_query");
if(query != null) {
encodeSuggestions(context, inputTextarea, query);
}
else {
encodeMarkup(context, inputTextarea);
encodeScript(context, inputTextarea);
}
}
@SuppressWarnings("unchecked")
public void encodeSuggestions(FacesContext context, InputTextarea inputTextarea, String query) throws IOException {
ResponseWriter writer = context.getResponseWriter();
List<Object> items = inputTextarea.getSuggestions();
writer.startElement("ul", inputTextarea);
writer.writeAttribute("class", AutoComplete.LIST_CLASS, null);
for(Object item : items) {
writer.startElement("li", null);
writer.writeAttribute("class", AutoComplete.ITEM_CLASS, null);
writer.writeAttribute("data-item-value", item, null);
writer.writeText(item, null);
writer.endElement("li");
}
writer.endElement("ul");
}
protected void encodeScript(FacesContext context, InputTextarea inputTextarea) throws IOException {
String clientId = inputTextarea.getClientId(context);
boolean autoResize = inputTextarea.isAutoResize();
String counter = inputTextarea.getCounter();
WidgetBuilder wb = getWidgetBuilder(context);
wb.initWithDomReady("InputTextarea", inputTextarea.resolveWidgetVar(), clientId)
.attr("autoResize", autoResize)
.attr("maxlength", inputTextarea.getMaxlength(), Integer.MAX_VALUE);
if(counter != null) {
UIComponent counterComponent = SearchExpressionFacade.resolveComponent(context, inputTextarea, counter);
wb.attr("counter", counterComponent.getClientId(context))
.attr("counterTemplate", inputTextarea.getCounterTemplate(), null);
}
if(inputTextarea.getCompleteMethod() != null) {
wb.attr("autoComplete", true)
.attr("minQueryLength", inputTextarea.getMinQueryLength())
.attr("queryDelay", inputTextarea.getQueryDelay())
.attr("scrollHeight", inputTextarea.getScrollHeight(), Integer.MAX_VALUE);
}
wb.finish();
}
protected void encodeMarkup(FacesContext context, InputTextarea inputTextarea) throws IOException {
ResponseWriter writer = context.getResponseWriter();
String clientId = inputTextarea.getClientId(context);
writer.startElement("textarea", null);
writer.writeAttribute("id", clientId, null);
writer.writeAttribute("name", clientId, null);
renderPassThruAttributes(context, inputTextarea, HTML.TEXTAREA_ATTRS_WITHOUT_EVENTS);
renderDomEvents(context, inputTextarea, HTML.INPUT_TEXT_EVENTS);
if(inputTextarea.isDisabled()) writer.writeAttribute("disabled", "disabled", null);
if(inputTextarea.isReadonly()) writer.writeAttribute("readonly", "readonly", null);
if(inputTextarea.getStyle() != null) writer.writeAttribute("style", inputTextarea.getStyle(), null);
writer.writeAttribute("class", createStyleClass(inputTextarea), "styleClass");
if(RequestContext.getCurrentInstance().getApplicationContext().getConfig().isClientSideValidationEnabled()) {
renderValidationMetadata(context, inputTextarea);
}
String valueToRender = ComponentUtils.getValueToRender(context, inputTextarea);
if(valueToRender != null) {
if(inputTextarea.isAddLine()) {
writer.writeText("\n", null);
}
writer.writeText(valueToRender, "value");
}
writer.endElement("textarea");
}
protected String createStyleClass(InputTextarea inputTextarea) {
String defaultClass = InputTextarea.STYLE_CLASS;
defaultClass = inputTextarea.isValid() ? defaultClass : defaultClass + " ui-state-error";
defaultClass = !inputTextarea.isDisabled() ? defaultClass : defaultClass + " ui-state-disabled";
String styleClass = inputTextarea.getStyleClass();
styleClass = styleClass == null ? defaultClass : defaultClass + " " + styleClass;
if(inputTextarea.isAutoResize()) {
styleClass = styleClass + " ui-inputtextarea-resizable";
}
return styleClass;
}
}