/*
* Copyright 2009 Prime Technology.
*
* 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.layout;
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.event.CloseEvent;
import org.primefaces.event.ResizeEvent;
import org.primefaces.event.ToggleEvent;
import org.primefaces.model.Visibility;
import org.primefaces.renderkit.CoreRenderer;
import org.primefaces.util.ComponentUtils;
public class LayoutRenderer extends CoreRenderer {
@Override
public void decode(FacesContext facesContext, UIComponent component) {
Layout layout = (Layout) component;
Map<String, String> params = facesContext.getExternalContext().getRequestParameterMap();
String clientId = layout.getClientId(facesContext);
//Queue toggle event
if(params.containsKey(clientId + "_toggled")) {
boolean collapsed = Boolean.valueOf(params.get(clientId + "_collapsed"));
LayoutUnit unit = layout.getLayoutUnitByPosition(params.get(clientId + "_unit"));
Visibility visibility = collapsed ? Visibility.HIDDEN : Visibility.VISIBLE;
unit.setCollapsed(collapsed);
layout.queueEvent(new ToggleEvent(unit, visibility));
}
//Queue close event
if(params.containsKey(clientId + "_closed")) {
LayoutUnit unit = layout.getLayoutUnitByPosition(params.get(clientId + "_unit"));
unit.setVisible(false);
layout.queueEvent(new CloseEvent(unit));
}
//Queue resize event
if(params.containsKey(clientId + "_resized")) {
LayoutUnit unit = layout.getLayoutUnitByPosition(params.get(clientId + "_unit"));
int width = Integer.valueOf(params.get(clientId + "_unitWidth"));
int height = Integer.valueOf(params.get(clientId + "_unitHeight"));
unit.setWidth(width);
unit.setHeight(height);
layout.queueEvent(new ResizeEvent(unit, width, height));
}
}
@Override
public void encodeBegin(FacesContext facesContext, UIComponent component) throws IOException {
ResponseWriter writer = facesContext.getResponseWriter();
Layout layout = (Layout) component;
String clientId = layout.getClientId(facesContext);
if(!layout.isFullPage()) {
writer.startElement("div", layout);
writer.writeAttribute("id", clientId, "id");
if(layout.getStyle() != null) writer.writeAttribute("style", layout.getStyle(), "style");
if(layout.getStyleClass() != null) writer.writeAttribute("class", layout.getStyleClass(), "styleClass");
}
}
@Override
public void encodeEnd(FacesContext facesContext, UIComponent component) throws IOException {
ResponseWriter writer = facesContext.getResponseWriter();
Layout layout = (Layout) component;
if(!layout.isFullPage()) {
writer.endElement("div");
}
encodeScript(facesContext, layout);
}
protected void encodeScript(FacesContext facesContext, Layout layout) throws IOException {
ResponseWriter writer = facesContext.getResponseWriter();
String clientId = layout.getClientId(facesContext);
String var = createUniqueWidgetVar(facesContext, layout);
writer.startElement("script", null);
writer.writeAttribute("type", "text/javascript", null);
if(layout.isFullPage())
writer.write(var + " = new PrimeFaces.widget.Layout({");
else
writer.write(var + " = new PrimeFaces.widget.Layout('" + clientId + "', {");
encodeUnits(facesContext, layout);
encodeAjaxEventListeners(facesContext, layout);
writer.write(",url:'" + getActionURL(facesContext) + "'");
if(layout.isFullPage()) writer.write(",clientId:'" + clientId + "'");
if(layout.getCloseTitle() != null) writer.write(",closeTitle:'" + layout.getCloseTitle() + "'");
if(layout.getCollapseTitle() != null) writer.write(",collapseTitle:'" + layout.getCollapseTitle() + "'");
if(layout.getExpandTitle() != null) writer.write(",expandTitle:'" + layout.getExpandTitle() + "'");
writer.write("});");
writer.endElement("script");
}
protected void encodeAjaxEventListeners(FacesContext facesContext, Layout layout) throws IOException {
encodeAjaxEventListener(facesContext, layout, "onToggleUpdate", layout.getOnToggleUpdate(), "ajaxToggle", "onToggleComplete", layout.getOnToggleComplete());
encodeAjaxEventListener(facesContext, layout, "onCloseUpdate", layout.getOnCloseUpdate(), "ajaxClose", "onCloseComplete", layout.getOnCloseComplete());
encodeAjaxEventListener(facesContext, layout, "onResizeUpdate", layout.getOnResizeUpdate(), "ajaxResize", "onResizeComplete", layout.getOnResizeComplete());
}
protected void encodeAjaxEventListener(FacesContext facesContext, Layout layout, String updateParam, String update, String ajaxEventParam, String callbackName, String callback) throws IOException {
ResponseWriter writer = facesContext.getResponseWriter();
writer.write("," + ajaxEventParam + ":true");
if(update != null)
writer.write("," + updateParam + ":'" + ComponentUtils.findClientIds(facesContext, layout, update) + "'");
if(callback != null)
writer.write("," + callbackName + ":function(xhr, status, args) {" + callback + ";}");
}
protected void encodeUnits(FacesContext facesContext, Layout layout) throws IOException {
ResponseWriter writer = facesContext.getResponseWriter();
writer.write("units:[");
boolean firstUnitWritten = false;
for(UIComponent child : layout.getChildren()) {
if(child.isRendered() && child instanceof LayoutUnit) {
LayoutUnit unit = (LayoutUnit) child;
if(firstUnitWritten)
writer.write(",");
else
firstUnitWritten = true;
writer.write("{position:'" + unit.getPosition() + "'");
writer.write(",body:'" + unit.getClientId(facesContext) + "'");
writer.write(",gutter:'" + unit.getGutter() + "'");
writer.write(",close:" + unit.isClosable());
writer.write(",resize:" + unit.isResizable());
writer.write(",collapse:" + unit.isCollapsible());
writer.write(",visible:" + unit.isVisible());
writer.write(",collapsed:" + unit.isCollapsed());
if(unit.getScrollable() != null) writer.write(",scroll:" + unit.getScrollable());
if(unit.getWidth() != -1) writer.write(",width:" + unit.getWidth());
if(unit.getHeight() != -1) writer.write(",height:" + unit.getHeight());
if(unit.getMinWidth() != -1) writer.write(",minWidth:" + unit.getMinWidth());
if(unit.getMinHeight() != -1) writer.write(",minHeight:" + unit.getMinHeight());
if(unit.getMaxWidth() != -1) writer.write(",maxWidth:" + unit.getMaxWidth());
if(unit.getMaxHeight() != -1) writer.write(",maxHeight:" + unit.getMaxHeight());
if(unit.getHeader() != null) writer.write(",header:'" + unit.getHeader() + "'");
if(unit.getFooter() != null) writer.write(",footer:'" + unit.getFooter() + "'");
if(unit.getZindex() != -1) writer.write(",zIndex:" + unit.getZindex());
if(!unit.isProxyResize()) writer.write(",proxy:false");
if(unit.getCollapseSize() != -1) writer.write(",collapseSize:" + unit.getCollapseSize());
writer.write("}");
}
}
writer.write("]");
}
}