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/*******************************************************************************
* Copyright (c) 2001, 2004 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.wst.ws.internal.explorer.platform.actions;
import javax.servlet.http.HttpServletRequest;
import org.eclipse.wst.ws.internal.explorer.platform.constants.ActionInputs;
import org.eclipse.wst.ws.internal.explorer.platform.perspective.Controller;
import org.eclipse.wst.ws.internal.explorer.platform.perspective.Node;
import org.eclipse.wst.ws.internal.explorer.platform.perspective.NodeManager;
public abstract class NodeAction extends LinkAction
{
protected NodeManager nodeManager_;
private boolean requiresTreeViewRefresh_;
private boolean requiresNodeSelection_;
private boolean requiresViewSelection_;
private boolean requiresStatusUpdate_;
public NodeAction(Controller controller,NodeManager nodeManager)
{
super(controller);
nodeManager_ = nodeManager;
requiresTreeViewRefresh_ = false;
requiresNodeSelection_ = false;
requiresViewSelection_ = false;
requiresStatusUpdate_ = false;
}
// ...jsp?nodeId=...<&isHistory=1>
protected boolean processLinkParameters(HttpServletRequest request)
{
String nodeIdString = request.getParameter(ActionInputs.NODEID);
// Perform data validation.
try
{
Integer.parseInt(nodeIdString);
}
catch (NumberFormatException e)
{
// Validation failed!
return false;
}
propertyTable_.put(ActionInputs.NODEID,nodeIdString);
return true;
}
protected final boolean isStaleNode(int nodeId)
{
return (nodeManager_.getNode(nodeId) == null);
}
/**
* Make a node visible. A node is visible when all of its ancestors are expanded.
* @param Node The node to be made visible.
* @return boolean Indicator for whether or not the tree structure was changed (i.e. expanded to show the node in question).
*/
protected final boolean makeNodeVisible(Node node)
{
requiresTreeViewRefresh_ = node.getNodeManager().makeNodeVisible(node);
return requiresTreeViewRefresh_;
}
/**
* Select a node with id nodeId.
* @param int The id of the node to be selected.
*/
protected final void setSelectedNodeId(int nodeId)
{
if (nodeManager_.getSelectedNodeId() != nodeId)
{
requiresNodeSelection_ = true;
nodeManager_.setSelectedNodeId(nodeId);
}
}
protected final void setSelectedViewId(int viewId)
{
Node selectedNode = nodeManager_.getSelectedNode();
if (selectedNode.getViewId() != viewId)
{
requiresViewSelection_ = true;
selectedNode.setViewId(viewId);
}
}
// Determine whether or not the treeview requires reloading as a result of this action.
// Reloading is required when branches are added/removed.
public boolean requiresTreeViewRefresh()
{
return requiresTreeViewRefresh_;
}
// Determine whether or not a new node has been selected as a result of the action.
public boolean requiresNodeSelection()
{
return requiresNodeSelection_;
}
// Determine if a new view element is selected.
public boolean requiresViewSelection()
{
return requiresViewSelection_;
}
// Determine if any status messages arose from this action.
public boolean requiresStatusUpdate()
{
return requiresStatusUpdate_;
}
protected abstract String getActionLinkForHistory();
}
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