/*
* Copyright 2010-2011 Research In Motion Limited.
*
* 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 blackberry.ui.menu;
import blackberry.core.FunctionSignature;
import blackberry.core.ScriptableFunctionBase;
import blackberry.ui.menu.item.MenuItemObject;
import net.rim.device.api.ui.*;
import net.rim.device.api.ui.component.Menu;
import net.rim.device.api.ui.container.MainScreen;
/**
* Implementation of function setDefaultMenuItem
*/
public class SetDefaultMenuItemFunction extends ScriptableFunctionBase {
public static final String NAME = "setDefaultMenuItem";
/**
* @see blackberry.core.ScriptableFunctionBase#execute(Object, Object[])
*/
public Object execute( Object thiz, Object[] args ) throws Exception {
MenuItemObject menuItem = (MenuItemObject) args[ 0 ];
if( !( (Boolean) menuItem.getField( MenuItemObject.FIELD_ISSEPARATOR ) ).booleanValue() ) {
// Get the screen that currently owns the BrowserField
MainScreen screen = (MainScreen) MenuExtension.getBrowserField().getScreen();
MenuItem defaultItem = screen.getDefaultMenuItem( Menu.INSTANCE_DEFAULT );
if( defaultItem == null ) {
menuItem.setPriority( Integer.MAX_VALUE );
} else {
menuItem.setPriority( defaultItem.getPriority() - 1 );
}
}
return UNDEFINED;
}
/**
* @see blackberry.core.ScriptableFunctionBase#getFunctionSignatures()
*/
protected FunctionSignature[] getFunctionSignatures() {
FunctionSignature fs = new FunctionSignature( 1 );
fs.addParam( MenuItemObject.class, true );
return new FunctionSignature[] { fs };
}
}