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Viewing changes to systemtap/org.eclipse.linuxtools.systemtap.ui.dashboardextension/src/org/eclipse/linuxtools/internal/systemtap/ui/dashboardextension/actions/ViewScriptAction.java

  • Committer: Package Import Robot
  • Author(s): Jakub Adam
  • Date: 2012-06-29 12:07:30 UTC
  • Revision ID: package-import@ubuntu.com-20120629120730-bfri1xys1i71dpn6
Tags: upstream-1.0.0
Import upstream version 1.0.0

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systemtap/org.eclipse.linuxtools.systemtap.ui.dashboardextension/src/org/eclipse/linuxtools/internal/systemtap/ui/dashboardextension/actions/ViewScriptAction.java
 
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/*******************************************************************************
 
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 * Copyright (c) 2006 IBM Corporation.
 
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 * All rights reserved. This program and the accompanying materials
 
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 * are made available under the terms of the Eclipse Public License v1.0
 
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 * which accompanies this distribution, and is available at
 
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 * http://www.eclipse.org/legal/epl-v10.html
 
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 *
 
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 * Contributors:
 
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 *     IBM Corporation - Jeff Briggs, Henry Hughes, Ryan Morse, Anithra P J
 
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 *******************************************************************************/
 
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package org.eclipse.linuxtools.internal.systemtap.ui.dashboardextension.actions;
 
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import java.io.FileInputStream;
 
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import java.io.IOException;
 
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import org.eclipse.jface.action.Action;
 
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import org.eclipse.jface.action.IAction;
 
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import org.eclipse.jface.viewers.ISelection;
 
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import org.eclipse.jface.viewers.IStructuredSelection;
 
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import org.eclipse.ui.IEditorPart;
 
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import org.eclipse.ui.IViewActionDelegate;
 
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import org.eclipse.ui.IViewPart;
 
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import org.eclipse.ui.IWorkbenchPage;
 
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import org.eclipse.ui.PlatformUI;
 
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import org.eclipse.ui.WorkbenchException;
 
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import org.eclipse.linuxtools.systemtap.ui.editor.SimpleEditor;
 
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import org.eclipse.linuxtools.systemtap.ui.dashboard.structures.DashboardModule;
 
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import org.eclipse.linuxtools.systemtap.ui.dashboard.structures.ModuleTreeNode;
 
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import org.eclipse.linuxtools.systemtap.ui.ide.IDEPerspective;
 
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import org.eclipse.linuxtools.systemtap.ui.ide.actions.TempFileAction;
 
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/**
 
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 * A class that handles extracting the original script from the dashboard module.
 
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 * It will then create a new active editor in the IDE perspective and display the
 
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 * module in a temp file.  Users can then modify this script and use the modified
 
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 * version as well as the original.
 
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 * @author Ryan Morse
 
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 */
 
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public class ViewScriptAction extends Action implements IViewActionDelegate {
 
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        /**
 
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         * This method sets what item the user has selected to view.
 
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         */
 
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        public void init(IViewPart view) {
 
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                selectedItem = null;
 
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        }
 
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        /**
 
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         * This method will retreive the script from the selected module for the user
 
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         * to see.  It will then create a new active editor in the IDE perspective and 
 
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         * display the module in a temp file.  Users can then modify this script and 
 
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         * use the modified version as well as the original.
 
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         * @param act An action representing the click event used to start this method.
 
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         */
 
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        public void run(IAction act) {
 
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                DashboardModule data = (DashboardModule)selectedItem.getData();
 
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                try {
 
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                        IWorkbenchPage p = PlatformUI.getWorkbench().showPerspective(IDEPerspective.ID, PlatformUI.getWorkbench().getActiveWorkbenchWindow());
 
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                        TempFileAction tfa = new TempFileAction();
 
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                        tfa.run();
 
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                        IEditorPart edit = p.getActiveEditor();
 
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                        if(null != edit) {
 
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                                if(edit instanceof SimpleEditor) {
 
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                                        SimpleEditor editor = (SimpleEditor)edit;
 
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                                        //Copy the file just to ensure the user has to save their own copy if they want it
 
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                                        FileInputStream fin;            
 
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                                        try {
 
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                                            fin = new FileInputStream(data.script);
 
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                                            StringBuilder sb = new StringBuilder();
 
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                                            int c;
 
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                                            while((c = fin.read()) != -1)
 
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                                                sb.append((char)c);
 
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                                            fin.close();                
 
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                                                editor.insertText(sb.toString());
 
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                                        } catch (IOException e) {}
 
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                                }
 
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                        }
 
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                } catch(WorkbenchException we) {}
 
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        }
 
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        /**
 
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         * This method will update the selected item when a new item is selected.
 
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         * @param action The action that fired this method.
 
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         * @param selection The newly selected item.
 
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         */
 
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        public void selectionChanged(IAction action, ISelection selection) {
 
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                if(selection instanceof IStructuredSelection) {
 
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                        IStructuredSelection selected = (IStructuredSelection)selection;
 
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                        Object o = selected.getFirstElement();
 
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                        if(o instanceof ModuleTreeNode) {
 
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                                selectedItem = (ModuleTreeNode)o;
 
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                                o = selectedItem.getData();
 
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                                if(null != o) {
 
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                                        setEnabled(true);
 
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                                        return;
 
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                                }
 
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                        }
 
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                }
 
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                setEnabled(false);
 
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        }
 
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        private ModuleTreeNode selectedItem;
 
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}