zkbind/src/main/java/org/zkoss/bind/impl/BindTabboxRenderer.java
/* BindTabboxRenderer.java
Purpose:
Description:
History:
2013/11/11 Created by dennis
Copyright (C) 2012 Potix Corporation. All Rights Reserved.
*/
package org.zkoss.bind.impl;
import java.io.Serializable;
import org.zkoss.bind.Binder;
import org.zkoss.bind.sys.BinderCtrl;
import org.zkoss.bind.sys.TemplateResolver;
import org.zkoss.lang.Objects;
import org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.UiException;
import org.zkoss.zk.ui.util.ForEachStatus;
import org.zkoss.zk.ui.util.Template;
import org.zkoss.zul.Attributes;
import org.zkoss.zul.Label;
import org.zkoss.zul.ListModel;
import org.zkoss.zul.Tab;
import org.zkoss.zul.Tabbox;
import org.zkoss.zul.TabboxRenderer;
import org.zkoss.zul.Tabpanel;
import org.zkoss.zul.Tabpanels;
import org.zkoss.zul.Tabs;
/**
* @author dennis
* @since 7.0.0
*/
public class BindTabboxRenderer extends AbstractRenderer implements TabboxRenderer<Object>, Serializable {
private static final long serialVersionUID = 4628797162244533928L;
public void renderTab(Tab item, final Object data, final int index) throws Exception {
final Tabbox tabbox = item.getTabbox();
final Tabs tabs = tabbox.getTabs();
final int size = tabbox.getModel().getSize();
final String tmn = "model";
final Template tm = resolveTemplate(tabbox, item, data, index, size, tmn, "tab");
if (tm == null) {
item.setLabel(Objects.toString(data));
item.setValue(data);
} else {
final ForEachStatus iterStatus = new AbstractForEachStatus() { //provide iteration status in this context
private static final long serialVersionUID = 1L;
public int getIndex() {
return index;
}
public Object getCurrent() {
return data;
}
public Integer getEnd() {
return size;
}
};
final String var = (String) tm.getParameters().get(EACH_ATTR);
final String varnm = var == null ? EACH_VAR : var; //var is not specified, default to "each"
final String itervar = (String) tm.getParameters().get(STATUS_ATTR);
final String itervarnm = itervar == null ? (var == null ? EACH_STATUS_VAR : varnm + STATUS_POST_VAR)
: itervar; //provide default value if not specified
//bug 1188, EL when nested var and itervar
Object oldVar = tabs.getAttribute(varnm);
Object oldIter = tabs.getAttribute(itervarnm);
tabs.setAttribute(varnm, data);
tabs.setAttribute(itervarnm, iterStatus);
final Component[] items = filterOutShadows(tabs, tm.create(tabs, item, null, null));
// Bug ZK-2882
if (oldVar == null) {
tabs.removeAttribute(varnm);
} else {
tabs.setAttribute(varnm, oldVar);
}
if (oldIter == null) {
tabs.removeAttribute(itervarnm);
} else {
tabs.setAttribute(itervarnm, oldIter);
}
if (items.length != 1)
throw new UiException("The model template must have exactly one item, not " + items.length);
final Tab ntab = (Tab) items[0];
ntab.setAttribute(BinderCtrl.VAR, varnm); // for the converter to get the value
// ZK-2552
ntab.setAttribute(AbstractRenderer.IS_TEMPLATE_MODEL_ENABLED_ATTR, true);
ntab.setAttribute(AbstractRenderer.CURRENT_INDEX_RESOLVER_ATTR, new IndirectBinding(data) {
public Binder getBinder() {
return BinderUtil.getBinder(ntab, true);
}
protected ListModel getModel() {
return tabbox.getModel();
}
public Component getComponent() {
return ntab;
}
});
addItemReference(tabbox, ntab, index, varnm); //kept the reference to the data, before ON_BIND_INIT
ntab.setAttribute(itervarnm, iterStatus);
//ZK-1787 When the viewModel tell binder to reload a list, the other component that bind a bean in the list will reload again
//move TEMPLATE_OBJECT (was set in resoloveTemplate) to current for check in addTemplateTracking
ntab.setAttribute(TemplateResolver.TEMPLATE_OBJECT, item.removeAttribute(TemplateResolver.TEMPLATE_OBJECT));
//add template dependency
addTemplateTracking(tabs, ntab, data, index, size);
if (ntab.getValue() == null) //template might set it
ntab.setValue(data);
item.setAttribute(Attributes.MODEL_RENDERAS, ntab);
//indicate a new item is created to replace the existent one
item.detach();
}
}
public void renderTabpanel(Tabpanel item, final Object data, final int index) throws Exception {
final Tabbox tabbox = item.getTabbox();
final Tabpanels tabpanels = tabbox.getTabpanels();
final int size = tabbox.getModel().getSize();
final String tmn = "model";
final Template tm = resolveTemplate(tabbox, item, data, index, size, tmn, "tabpanel");
if (tm == null) {
item.appendChild(new Label(Objects.toString(data)));
} else {
final ForEachStatus iterStatus = new AbstractForEachStatus() { //provide iteration status in this context
private static final long serialVersionUID = 1L;
public int getIndex() {
return index;
}
public Object getCurrent() {
return data;
}
public Integer getEnd() {
return size;
}
};
final String var = (String) tm.getParameters().get(EACH_ATTR);
final String varnm = var == null ? EACH_VAR : var; //var is not specified, default to "each"
final String itervar = (String) tm.getParameters().get(STATUS_ATTR);
final String itervarnm = itervar == null ? (var == null ? EACH_STATUS_VAR : varnm + STATUS_POST_VAR)
: itervar; //provide default value if not specified
//bug 1188, EL when nested var and itervar
Object oldVar = tabpanels.getAttribute(varnm);
Object oldIter = tabpanels.getAttribute(itervarnm);
tabpanels.setAttribute(varnm, data);
tabpanels.setAttribute(itervarnm, iterStatus);
final Component[] items = tm.create(tabpanels, item, null, null);
tabpanels.setAttribute(varnm, oldVar);
tabpanels.setAttribute(itervarnm, oldIter);
if (items.length != 1)
throw new UiException("The model template must have exactly one item, not " + items.length);
final Tabpanel ntabpanel = (Tabpanel) items[0];
ntabpanel.setAttribute(BinderCtrl.VAR, varnm); // for the converter to get the value
// ZK-2552
ntabpanel.setAttribute(AbstractRenderer.IS_TEMPLATE_MODEL_ENABLED_ATTR, true);
ntabpanel.setAttribute(AbstractRenderer.CURRENT_INDEX_RESOLVER_ATTR, new IndirectBinding(data) {
public Binder getBinder() {
return BinderUtil.getBinder(ntabpanel, true);
}
protected ListModel getModel() {
return tabbox.getModel();
}
public Component getComponent() {
return ntabpanel;
}
});
addItemReference(tabbox, ntabpanel, index, varnm); //kept the reference to the data, before ON_BIND_INIT
ntabpanel.setAttribute(itervarnm, iterStatus);
//ZK-1787 When the viewModel tell binder to reload a list, the other component that bind a bean in the list will reload again
//move TEMPLATE_OBJECT (was set in resoloveTemplate) to current for check in addTemplateTracking
ntabpanel.setAttribute(TemplateResolver.TEMPLATE_OBJECT,
item.removeAttribute(TemplateResolver.TEMPLATE_OBJECT));
//add template dependency
addTemplateTracking(tabpanels, ntabpanel, data, index, size);
item.setAttribute(Attributes.MODEL_RENDERAS, ntabpanel);
//indicate a new item is created to replace the existent one
item.detach();
}
}
}