Preparing a Button with JSF Icon

package tr.com.mypackage.base.component.command;


import java.io.IOException;
import java.util.Map;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.faces.event.ActionEvent;
import tr.com.mypackage.base.component.helper.CssDefault;

public class MeCommandButtonRender extends javax.faces.render.Renderer {

@Override

public void encodeBegin(FacesContext context, UIComponent component)
throws IOException {

super.encodeBegin(context, component);
MeCommandButton commandButton = ((MeCommandButton) component);
String id = commandButton.getClientId(context);
ResponseWriter writer = context.getResponseWriter();
if (commandButton.getButtonType() != null) {
writer.startElement("div", commandButton);

writer.writeAttribute("class",

CssDefault.BUTTON_FOR_ICON_CONTAINER, null);

writer.startElement("i", commandButton);

String styleClass = "";

if (commandButton.getValue() == null

|| ((String) commandButton.getValue()).trim().equals(""))

styleClass = " " + CssDefault.BUTTON_FOR_ICON_ONLY;

styleClass = styleClass + " " + CssDefault.BUTTON_FOR_ICON

+ commandButton.getButtonType();

writer.writeAttribute("class", styleClass, null);

writer.endElement("i");

}

writer.startElement("input", commandButton);

writer.writeAttribute("class",

CssDefault.BUTTON

+ " "

+ (commandButton.getStyleClass() == null ? ""

: commandButton.getStyleClass()), null);

writer.writeAttribute("name", id, null);

writer.writeAttribute("id", id, null);

writer.writeAttribute("style", commandButton.getStyle() == null ? ""

: commandButton.getStyle(), null);

if (commandButton.isDisabled() == true)

writer.writeAttribute("disabled", "true", null);

writer.writeAttribute("type", "submit", null);

writer.writeAttribute("value", (commandButton.getValue() == null ? ""

: commandButton.getValue()), null);

writer.endElement("input");

if (commandButton.getButtonType() != null) {

writer.endElement("div");

}

}

@Override

public void decode(FacesContext context, UIComponent component) {

//super.decode(context, component);

if (!didThisButtonInvokeSubmit(context, component)) {

return;

}

component.queueEvent(new ActionEvent(component));

}

private boolean didThisButtonInvokeSubmit(

FacesContext facesContext, UIComponent uiComponent) {

//find if the form submitted by a textField, workaround to deal with the default behaviour of the browser

//(e.g.) if a form has a button on it, and enter key pressed on a text field, form submitted by the first intance of button

Map<String,String> requestParameterMap = facesContext.getExternalContext().getRequestParameterMap();

String componentClientId = uiComponent.getClientId(facesContext);

return requestParameterMap.containsKey(componentClientId);

}

}

package tr.com.mypackage.base.component.command;

public class MeCommandButton extends
javax.faces.component.html.HtmlCommandButton {

public static final String TREEVIEW_PREFIX = "button";
private static final String OPTIMIZED_PACKAGE = "tr.com.mypackage.base.component.";
public static final String COMPONENT_TYPE = "tr.com.mypackage.faces.commandButton";


@Override
public String getFamily() {
return "tr.com.mypackage.faces.commandButton";
}

private String buttonType = null;
private Object params = null;
private Boolean partialSubmit = false;
public String getButtonType() {
return buttonType;
}
public void setButtonType(String buttonType) {
this.buttonType = buttonType;
}
public Object getParams() {
return params;
}
public void setParams(Object params) {
this.params = params;
}
public Boolean getPartialSubmit() {
return partialSubmit;
}
public void setPartialSubmit(Boolean partialSubmit) {
this.partialSubmit = partialSubmit;
}
public MeCommandButton() {
super();
this.setRendererType("tr.com.mypackage.faces.commandButton");
}
}