/*
* Copyright 2014 cruxframework.org.
*
* 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.cruxframework.crux.core.rebind.screen.widget.creator;
import org.cruxframework.crux.core.client.factory.WidgetFactory;
import org.cruxframework.crux.core.client.screen.DeviceAdaptive.Device;
import org.cruxframework.crux.core.rebind.AbstractProxyCreator.SourcePrinter;
import org.cruxframework.crux.core.rebind.CruxGeneratorException;
import org.cruxframework.crux.core.rebind.screen.Event;
import org.cruxframework.crux.core.rebind.screen.EventFactory;
import org.cruxframework.crux.core.rebind.screen.widget.ControllerAccessHandler;
import org.cruxframework.crux.core.rebind.screen.widget.EvtProcessor;
import org.cruxframework.crux.core.rebind.screen.widget.ViewFactoryCreator.WidgetConsumer;
import org.cruxframework.crux.core.rebind.screen.widget.WidgetCreatorContext;
import org.cruxframework.crux.core.rebind.screen.widget.creator.children.AnyWidgetChildProcessor;
import org.cruxframework.crux.core.rebind.screen.widget.creator.children.ChoiceChildProcessor;
import org.cruxframework.crux.core.rebind.screen.widget.creator.children.WidgetChildProcessor;
import org.cruxframework.crux.core.rebind.screen.widget.declarative.TagAttribute;
import org.cruxframework.crux.core.rebind.screen.widget.declarative.TagAttributeDeclaration;
import org.cruxframework.crux.core.rebind.screen.widget.declarative.TagAttributes;
import org.cruxframework.crux.core.rebind.screen.widget.declarative.TagAttributesDeclaration;
import org.cruxframework.crux.core.rebind.screen.widget.declarative.TagChild;
import org.cruxframework.crux.core.rebind.screen.widget.declarative.TagChildren;
import org.cruxframework.crux.core.rebind.screen.widget.declarative.TagConstraints;
import org.json.JSONException;
import org.json.JSONObject;
import com.google.gwt.core.ext.typeinfo.JClassType;
import com.google.gwt.user.client.ui.IsWidget;
/**
* @author Thiago da Rosa de Bustamante
*
*/
@TagAttributes({
@TagAttribute(value="pageSize", type=Integer.class, description="The number of widgets that is loaded from the datasource on each data request."),
})
public abstract class AbstractPageableFactory<C extends WidgetCreatorContext> extends HasDataProviderFactory<C>
{
protected void generateWidgetCreationForCell(SourcePrinter out, C context, JSONObject child, JClassType dataObject)
{
String dataObjectName = dataObject.getParameterizedQualifiedSourceName();
String widgetFactoryClassName = WidgetFactory.class.getCanonicalName()+"<"+dataObjectName+">";
out.println("new " + widgetFactoryClassName + "(){");
String childName = getChildName(child);
if (childName.equals("widgetFactory"))
{
generateWidgetCreationForCellByTemplate(out, context, child, dataObjectName);
}
else if (childName.equals("widgetFactoryOnController"))
{
generateWidgetCreationForCellOnController(out, context, child, dataObject, dataObjectName);
}
else
{
throw new CruxGeneratorException("Invalid child tag on widget ["+context.getWidgetId()+"]. View ["+getView().getId()+"]");
}
out.println("};");
}
private void generateWidgetCreationForCellByTemplate(SourcePrinter out, C context, JSONObject child, String dataObjectName)
{
child = ensureFirstChild(child, false, context.getWidgetId());
String widgetClassName = getChildWidgetClassName(child);
JClassType widgetClassType = getContext().getTypeOracle().findType(widgetClassName);
WidgetConsumer widgetConsumer = new PageableWidgetConsumer(getContext(), widgetClassType, getDataObject(context), "value", getView().getId(), context.getWidgetId());
out.println("public "+IsWidget.class.getCanonicalName()+" createWidget("+dataObjectName+" value){");
String childWidget = createChildWidget(out, child, widgetConsumer, true, context);
out.println("return "+childWidget+";");
out.println("}");
}
private void generateWidgetCreationForCellOnController(SourcePrinter out, C context, JSONObject child, JClassType dataObject, String dataObjectName)
{
try
{
String onCreateWidget = child.getString("onCreateWidget");
Event event = EventFactory.getEvent("onCreateWidget", onCreateWidget);
if (event != null)
{
String controllerClass = getControllerAccessorHandler().getControllerImplClassName(event.getController(), getDevice());
out.println("private "+controllerClass+" controller = " + getControllerAccessorHandler().getControllerExpression(event.getController(), getDevice())+";");
}
ControllerAccessHandler controllerAccessHandler = new ControllerAccessHandler()
{
@Override
public String getControllerImplClassName(String controller, Device device)
{
return getControllerAccessorHandler().getControllerImplClassName(controller, device);
}
@Override
public String getControllerExpression(String controller, Device device)
{
return "this.controller";
}
};
out.println("public "+IsWidget.class.getCanonicalName()+" createWidget("+dataObjectName+" value){");
out.print("return ");
EvtProcessor.printEvtCall(out, onCreateWidget, "onCreateWidget", dataObject.getParameterizedQualifiedSourceName(), "value",
getContext(), getView(), controllerAccessHandler, getDevice(), false);
out.println("}");
}
catch (JSONException e)
{
throw new CruxGeneratorException("Missing required attribute [onCreateWidget], on widgetFactoryOnController tag on widget declaration. WidgetID ["+context.getWidgetId()+"]. View ["+getView().getId()+"]");
}
}
@TagChildren({
@TagChild(WidgetFactoryChildCreator.class),
@TagChild(WidgetFactoryControllerChildCreator.class)
})
public static class WidgetListChildCreator extends ChoiceChildProcessor<WidgetCreatorContext>{}
@TagConstraints(tagName="widgetFactory", description="Describes the widget factory used by the widgetList. This factory is called to create a widget for each object provided by the datasource.")
@TagChildren({
@TagChild(value=WidgetFactoryWidgetProcessor.class, autoProcess=false)
})
public static class WidgetFactoryChildCreator extends WidgetChildProcessor<WidgetCreatorContext>{}
public static class WidgetFactoryWidgetProcessor extends AnyWidgetChildProcessor<WidgetCreatorContext> {}
@TagConstraints(tagName="widgetFactoryOnController", description="Describes the widget factory method to be called on a controller to create widgets for this list. This factory is called to create a widget for each object provided by the datasource.")
@TagAttributesDeclaration({
@TagAttributeDeclaration(value="onCreateWidget", required=true, description="")
})
public static class WidgetFactoryControllerChildCreator extends WidgetChildProcessor<WidgetCreatorContext>{}
}