blob: 9c18040619f700bc2e4f155c5bfc9d5938cd595a (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
/*****************************************************************************
* Copyright (c) 2008 CEA LIST.
*
*
* 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:
* Chokri Mraidha (CEA LIST) Chokri.Mraidha@cea.fr - Initial API and implementation
* Patrick Tessier (CEA LIST) Patrick.Tessier@cea.fr - modification
*
*****************************************************************************/
package org.eclipse.papyrus.uml.profile.ui.actions;
import java.util.Iterator;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IViewActionDelegate;
import org.eclipse.ui.IViewPart;
import org.eclipse.uml2.uml.Element;
/**
* Action delegate default implementation for this plugin. Is is based on a
* selection of a {@link Element}.
*/
public abstract class AbstractViewActionDelegate implements IViewActionDelegate {
/** current selection */
protected Element selectedElement;
/**
* {@inheritDoc}
*/
public void init(IViewPart view) {
}
/**
* {@inheritDoc}
*/
public abstract void run(IAction action);
/**
* Returns <code>true</code> if the element is a selectableElement, i.e. if the action
* should be enabled
*
* @param element
* the element to test
* @return <code>true</code> if the element can be selected
*/
protected boolean isSelectableElement(Object o) {
return (o instanceof Element);
}
/**
* {@inheritDoc}
*/
public void selectionChanged(IAction action, ISelection selection) {
IStructuredSelection structSelection = null;
if(selection instanceof IStructuredSelection) {
structSelection = (IStructuredSelection)selection;
// iterate the selection to update the selected element
@SuppressWarnings("unchecked")
Iterator<Object> it = structSelection.iterator();
while(it.hasNext()) {
Object o = (Object)it.next();
if (o instanceof IAdaptable) {
EObject eObject = (EObject) ((IAdaptable) o)
.getAdapter(EObject.class);
if (eObject != null) {
setSelectedElement(eObject);
}
}
if(isSelectableElement(o)) {
setSelectedElement(o);
return;
}
}
}
}
/**
* Sets the current selected element
*
* @param selectedElement
* the new selected element
*/
protected void setSelectedElement(Object selectedElement) {
if( selectedElement instanceof Element){
this.selectedElement = (Element)selectedElement;
}
}
/**
* Returns current selected element
*
* @return current selected element may be null
*/
protected Element getSelectedElement() {
return selectedElement;
}
}
|
