/*
* Copyright 2011 PrimeFaces Extensions.
*
* 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.
*
* $Id: ImageRotateAndResize.java 533 2011-12-03 14:02:23Z Zoigln@googlemail.com $
*/
package org.primefaces.extensions.component.imagerotateandresize;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import javax.el.ValueExpression;
import javax.faces.application.ResourceDependencies;
import javax.faces.application.ResourceDependency;
import javax.faces.component.UIComponentBase;
import javax.faces.component.UINamingContainer;
import javax.faces.component.behavior.ClientBehaviorHolder;
import javax.faces.context.FacesContext;
import javax.faces.event.BehaviorEvent;
import javax.faces.event.FacesEvent;
import org.primefaces.component.api.Widget;
import org.primefaces.extensions.component.base.Attachable;
import org.primefaces.extensions.event.ResizeEvent;
import org.primefaces.extensions.event.RotateEvent;
import org.primefaces.util.Constants;
/**
* Component class for the <code>ImageRotateAndResize</code> component.
*
* @author Thomas Andraschko / last modified by $Author: Zoigln@googlemail.com $
* @version $Revision: 533 $
* @since 0.1
*/
@ResourceDependencies({
@ResourceDependency(library = "primefaces", name = "jquery/jquery.js"),
@ResourceDependency(library = "primefaces", name = "primefaces.js"),
@ResourceDependency(library = "primefaces-extensions", name = "primefaces-extensions.js")
})
public class ImageRotateAndResize extends UIComponentBase implements Widget, ClientBehaviorHolder, Attachable {
public static final String COMPONENT_FAMILY = "org.primefaces.extensions.component";
private static final String DEFAULT_RENDERER = "org.primefaces.extensions.component.ImageRotateAndResizeRenderer";
private static final String OPTIMIZED_PACKAGE = "org.primefaces.extensions.component.";
public static final String EVENT_ROTATE = "rotate";
public static final String EVENT_RESIZE = "resize";
private static final Collection<String> EVENT_NAMES =
Collections.unmodifiableCollection(Arrays.asList(EVENT_ROTATE, EVENT_RESIZE));
/**
* Properties that are tracked by state saving.
*
* @author Thomas Andraschko / last modified by $Author: Zoigln@googlemail.com $
* @version $Revision: 533 $
*/
protected enum PropertyKeys {
widgetVar,
forValue("for");
private String toString;
PropertyKeys(final String toString) {
this.toString = toString;
}
PropertyKeys() {
}
@Override
public String toString() {
return ((this.toString != null) ? this.toString : super.toString());
}
}
public ImageRotateAndResize() {
setRendererType(DEFAULT_RENDERER);
}
@Override
public String getFamily() {
return COMPONENT_FAMILY;
}
@Override
public Collection<String> getEventNames() {
return EVENT_NAMES;
}
public String getWidgetVar() {
return (String) getStateHelper().eval(PropertyKeys.widgetVar, null);
}
public void setWidgetVar(final String widgetVar) {
setAttribute(PropertyKeys.widgetVar, widgetVar);
}
@Override
public String getFor() {
return (String) getStateHelper().eval(PropertyKeys.forValue, null);
}
@Override
public void setFor(final String forValue) {
setAttribute(PropertyKeys.forValue, forValue);
}
@Override
public String resolveWidgetVar() {
final FacesContext context = FacesContext.getCurrentInstance();
final String userWidgetVar = (String) getAttributes().get(PropertyKeys.widgetVar.toString());
if (userWidgetVar != null) {
return userWidgetVar;
}
return "widget_" + getClientId(context).replaceAll("-|" + UINamingContainer.getSeparatorChar(context), "_");
}
@SuppressWarnings("unchecked")
public void setAttribute(final PropertyKeys property, final Object value) {
getStateHelper().put(property, value);
List<String> setAttributes = (List<String>) this.getAttributes().get(
"javax.faces.component.UIComponentBase.attributesThatAreSet");
if (setAttributes == null) {
final String cname = this.getClass().getName();
if (cname != null && cname.startsWith(OPTIMIZED_PACKAGE)) {
setAttributes = new ArrayList<String>(6);
this.getAttributes().put("javax.faces.component.UIComponentBase.attributesThatAreSet", setAttributes);
}
}
if (setAttributes != null && value == null) {
final String attributeName = property.toString();
final ValueExpression ve = getValueExpression(attributeName);
if (ve == null) {
setAttributes.remove(attributeName);
} else if (!setAttributes.contains(attributeName)) {
setAttributes.add(attributeName);
}
}
}
@Override
public void queueEvent(final FacesEvent event) {
final FacesContext context = FacesContext.getCurrentInstance();
final Map<String, String> params = context.getExternalContext().getRequestParameterMap();
final String clientId = getClientId(context);
if (isRequestSource(clientId, params)) {
final String eventName = params.get(Constants.PARTIAL_BEHAVIOR_EVENT_PARAM);
final BehaviorEvent behaviorEvent = (BehaviorEvent) event;
if (eventName.equals(EVENT_RESIZE)) {
final double width = Double.parseDouble(params.get(clientId + "_width"));
final double height = Double.parseDouble(params.get(clientId + "_height"));
final ResizeEvent resizeEvent = new ResizeEvent(
this,
behaviorEvent.getBehavior(),
width,
height);
super.queueEvent(resizeEvent);
} else if (eventName.equals(EVENT_ROTATE)) {
final int degree = Integer.parseInt(params.get(clientId + "_degree"));
final RotateEvent rotateEvent = new RotateEvent(
this,
behaviorEvent.getBehavior(),
degree);
super.queueEvent(rotateEvent);
}
} else {
super.queueEvent(event);
}
}
private boolean isRequestSource(final String clientId, final Map<String, String> params) {
return clientId.equals(params.get(Constants.PARTIAL_SOURCE_PARAM));
}
}