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org.primefaces.component.signature.SignatureRenderer Maven / Gradle / Ivy
/*
* Copyright 2009-2015 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.signature;
import java.io.IOException;
import java.util.Map;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.primefaces.renderkit.CoreRenderer;
import org.primefaces.util.WidgetBuilder;
public class SignatureRenderer extends CoreRenderer {
@Override
public void decode(FacesContext context, UIComponent component) {
Signature signature = (Signature) component;
Map params = context.getExternalContext().getRequestParameterMap();
String value = params.get(signature.getClientId(context) + "_value");
String base64Value = params.get(signature.getClientId(context) + "_base64");
signature.setSubmittedValue(value);
if(base64Value != null) {
signature.setBase64Value(base64Value);
}
}
@Override
public void encodeEnd(FacesContext facesContext, UIComponent component) throws IOException {
Signature signature = (Signature) component;
encodeMarkup(facesContext, signature);
encodeScript(facesContext, signature);
}
protected void encodeMarkup(FacesContext context, Signature signature) throws IOException {
ResponseWriter writer = context.getResponseWriter();
String clientId = signature.getClientId(context);
String style = signature.getStyle();
String styleClass = signature.getStyleClass();
writer.startElement("div", null);
writer.writeAttribute("id", clientId, null);
if(style != null) writer.writeAttribute("style", style, null);
if(styleClass != null) writer.writeAttribute("class", styleClass, null);
encodeInputField(context, signature, clientId + "_value", signature.getValue());
if(signature.getValueExpression("base64Value") != null) {
encodeInputField(context, signature, clientId + "_base64", null);
}
writer.endElement("div");
}
protected void encodeScript(FacesContext context, Signature signature) throws IOException {
String clientId = signature.getClientId(context);
WidgetBuilder wb = getWidgetBuilder(context);
wb.initWithDomReady("Signature", signature.resolveWidgetVar(), clientId)
.attr("background", signature.getBackgroundColor(), null)
.attr("color", signature.getColor(), null)
.attr("thickness", signature.getThickness(), 2)
.attr("disabled", signature.isReadonly(), false)
.attr("guideline", signature.isGuideline(), false)
.attr("guidelineColor", signature.getGuidelineColor(), null)
.attr("guidelineOffset", signature.getGuidelineOffset(), 25)
.attr("guidelineIndent", signature.getGuidelineIndent(), 10)
.callback("onchange", "function()", signature.getOnchange());
if(signature.getValueExpression("base64Value") != null) {
wb.attr("base64", true);
}
wb.finish();
}
protected void encodeInputField(FacesContext context, Signature signature, String name, Object value) throws IOException {
ResponseWriter writer = context.getResponseWriter();
writer.startElement("input", null);
writer.writeAttribute("type", "hidden", null);
writer.writeAttribute("id", name, null);
writer.writeAttribute("name", name, null);
writer.writeAttribute("autocomplete", "off", null);
if(value != null) {
writer.writeAttribute("value", value, null);
}
writer.endElement("input");
}
}