1 /*
   2  * Copyright (c) 2012, 2014, Oracle and/or its affiliates.
   3  * All rights reserved. Use is subject to license terms.
   4  *
   5  * This file is available and licensed under the following license:
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  *  - Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  *  - Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the distribution.
  16  *  - Neither the name of Oracle Corporation nor the names of its
  17  *    contributors may be used to endorse or promote products derived
  18  *    from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32 package com.oracle.javafx.scenebuilder.kit.editor.job.atomic;
  33 
  34 import com.oracle.javafx.scenebuilder.kit.editor.job.atomic.RemovePropertyJob;
  35 import com.oracle.javafx.scenebuilder.kit.editor.EditorController;
  36 import com.oracle.javafx.scenebuilder.kit.editor.job.Job;
  37 import com.oracle.javafx.scenebuilder.kit.fxom.FXOMObject;
  38 import com.oracle.javafx.scenebuilder.kit.fxom.FXOMPropertyC;
  39 
  40 /**
  41  *
  42  */
  43 public class RemovePropertyValueJob extends Job {
  44 
  45     private final FXOMObject targetValue;
  46 
  47     private FXOMPropertyC parentProperty;
  48     private int indexInParentProperty;
  49     private RemovePropertyJob removePropertyJob;
  50 
  51     public RemovePropertyValueJob(FXOMObject value, EditorController editorController) {
  52         super(editorController);
  53         this.targetValue = value;
  54     }
  55 
  56 
  57     /*
  58      * Job
  59      */
  60 
  61     @Override
  62     public boolean isExecutable() {
  63         return targetValue.getParentProperty() != null;
  64     }
  65 
  66     @Override
  67     public void execute() {
  68         assert parentProperty == null;
  69         assert isExecutable();
  70 
  71         parentProperty = targetValue.getParentProperty();
  72         indexInParentProperty = targetValue.getIndexInParentProperty();
  73         if ((parentProperty.getValues().size() == 1) && (parentProperty.getParentInstance() != null)) {
  74             // targetValue is the last value of its parent property
  75             // => parent property must also be removed from its parent instance
  76             removePropertyJob = new RemovePropertyJob(parentProperty, getEditorController());
  77         }
  78 
  79         // Note : below we may have to run removePropertyJob.execute() so
  80         // we cannot re-use redo() here.
  81         getEditorController().getFxomDocument().beginUpdate();
  82         if (removePropertyJob != null) {
  83             removePropertyJob.execute();
  84         }
  85         targetValue.removeFromParentProperty();
  86         getEditorController().getFxomDocument().endUpdate();
  87     }
  88 
  89     @Override
  90     public void undo() {
  91         assert targetValue.getParentProperty() == null;
  92 
  93         getEditorController().getFxomDocument().beginUpdate();
  94         targetValue.addToParentProperty(indexInParentProperty, parentProperty);
  95         if (removePropertyJob != null) {
  96             removePropertyJob.undo();
  97         }
  98         getEditorController().getFxomDocument().endUpdate();
  99 
 100         assert targetValue.getParentProperty() == parentProperty;
 101         assert targetValue.getIndexInParentProperty() == indexInParentProperty;
 102     }
 103 
 104     @Override
 105     public void redo() {
 106         assert targetValue.getParentProperty() == parentProperty;
 107         assert targetValue.getIndexInParentProperty() == indexInParentProperty;
 108 
 109         getEditorController().getFxomDocument().beginUpdate();
 110         if (removePropertyJob != null) {
 111             removePropertyJob.redo();
 112         }
 113         targetValue.removeFromParentProperty();
 114         getEditorController().getFxomDocument().endUpdate();
 115 
 116         assert targetValue.getParentProperty() == null;
 117     }
 118 
 119     @Override
 120     public String getDescription() {
 121         // Should normally not reach the user
 122         return getClass().getSimpleName()
 123                 + "["
 124                 + targetValue.getGlueElement().getTagName()
 125                 + "]";
 126     }
 127 
 128 }