| /******************************************************************************* |
| * Copyright (c) 2001, 2006 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_; |
| } |
| |
| /** |
| * 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). |
| */ |
| public final void setTreeRefreshNeeded() |
| { |
| requiresTreeViewRefresh_ = true; |
| |
| } |
| |
| /** |
| * 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(); |
| } |