case-study/jdt-before/ui/org/eclipse/jdt/ui/actions/InlineTempAction.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2011 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package org.eclipse.jdt.ui.actions;
  12
  13 import org.eclipse.swt.widgets.Shell;
  14
  15 import org.eclipse.jface.viewers.IStructuredSelection;
  16
  17 import org.eclipse.jface.text.ITextSelection;
  18
  19 import org.eclipse.ui.IWorkbenchSite;
  20 import org.eclipse.ui.PlatformUI;
  21
  22 import org.eclipse.jdt.core.ICompilationUnit;
  23 import org.eclipse.jdt.core.JavaModelException;
  24 import org.eclipse.jdt.core.dom.CompilationUnit;
  25
  26 import org.eclipse.jdt.internal.corext.refactoring.RefactoringAvailabilityTester;
  27 import org.eclipse.jdt.internal.corext.refactoring.RefactoringExecutionStarter;
  28
  29 import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
  30 import org.eclipse.jdt.internal.ui.actions.ActionUtil;
  31 import org.eclipse.jdt.internal.ui.actions.SelectionConverter;
  32 import org.eclipse.jdt.internal.ui.javaeditor.JavaEditor;
  33 import org.eclipse.jdt.internal.ui.javaeditor.JavaTextSelection;
  34 import org.eclipse.jdt.internal.ui.refactoring.RefactoringMessages;
  35
  36 /**
  37  * Inlines the value of a local variable at all places where a read reference
  38  * is used.
  39  *
  40  * <p>
  41  * This class may be instantiated; it is not intended to be subclassed.
  42  * </p>
  43  *
  44  * @since 2.0
  45  *
  46  * @noextend This class is not intended to be subclassed by clients.
  47  */
  48 public class InlineTempAction extends SelectionDispatchAction {
  49
  50         private JavaEditor fEditor;
  51
  52         /**
  53          * Note: This constructor is for internal use only. Clients should not call this constructor.
  54          *
  55          * @param editor the java editor
  56          *
  57          * @noreference This constructor is not intended to be referenced by clients.
  58          */
  59         public InlineTempAction(JavaEditor editor) {
  60                 this(editor.getEditorSite());
  61                 fEditor= editor;
  62                 setEnabled(SelectionConverter.canOperateOn(fEditor));
  63         }
  64
  65         /* package */ InlineTempAction(IWorkbenchSite site) {
  66                 super(site);
  67                 setText(RefactoringMessages.InlineTempAction_label);
  68                 PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.INLINE_ACTION);
  69         }
  70
  71         //---- text selection ----------------------------------------------------------
  72
  73         /* (non-Javadoc)
  74          * Method declared on SelectionDispatchAction
  75          */
  76         @Override
  77         public void selectionChanged(ITextSelection selection) {
  78                 setEnabled(true);
  79         }
  80
  81         /**
  82          * Note: This method is for internal use only. Clients should not call this method.
  83          *
  84          * @param selection the Java text selection
  85          * @noreference This method is not intended to be referenced by clients.
  86          */
  87         @Override
  88         public void selectionChanged(JavaTextSelection selection) {
  89                 try {
  90                         setEnabled(RefactoringAvailabilityTester.isInlineTempAvailable(selection));
  91                 } catch (JavaModelException e) {
  92                         setEnabled(false);
  93                 }
  94         }
  95
  96         /* (non-Javadoc)
  97          * Method declared on SelectionDispatchAction
  98          */
  99         @Override
 100         public void run(ITextSelection selection) {
 101                 ICompilationUnit input= SelectionConverter.getInputAsCompilationUnit(fEditor);
 102                 if (!ActionUtil.isEditable(fEditor))
 103                         return;
 104                 RefactoringExecutionStarter.startInlineTempRefactoring(input, null, selection, getShell());
 105         }
 106
 107         /*
 108          * @see org.eclipse.jdt.ui.actions.SelectionDispatchAction#run(org.eclipse.jface.viewers.IStructuredSelection)
 109          */
 110         @Override
 111         public void run(IStructuredSelection selection) {
 112                 //do nothing
 113         }
 114
 115         /*
 116          * @see org.eclipse.jdt.ui.actions.SelectionDispatchAction#selectionChanged(org.eclipse.jface.viewers.IStructuredSelection)
 117          */
 118         @Override
 119         public void selectionChanged(IStructuredSelection selection) {
 120                 setEnabled(false);
 121         }
 122
 123         /* package */ boolean tryInlineTemp(ICompilationUnit unit, CompilationUnit node, ITextSelection selection, Shell shell) {
 124                 return RefactoringExecutionStarter.startInlineTempRefactoring(unit, node, selection, shell);
 125         }
 126 }