Revision 64301fda
Added by Katja Luther about 6 years ago
| eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/ui/element/SelectionArbitrator.java | ||
|---|---|---|
| 1 | 1 |
/** |
| 2 | 2 |
* Copyright (C) 2007 EDIT |
| 3 |
* European Distributed Institute of Taxonomy
|
|
| 3 |
* European Distributed Institute of Taxonomy |
|
| 4 | 4 |
* http://www.e-taxonomy.eu |
| 5 |
*
|
|
| 5 |
* |
|
| 6 | 6 |
* The contents of this file are subject to the Mozilla Public License Version 1.1 |
| 7 | 7 |
* See LICENSE.TXT at the top of this package for the full license terms. |
| 8 | 8 |
*/ |
| ... | ... | |
| 38 | 38 |
private IEntityElement entityElement; |
| 39 | 39 |
|
| 40 | 40 |
private Set<ISelectionProvider> selectionProviders = new HashSet<ISelectionProvider>(); |
| 41 |
|
|
| 41 |
|
|
| 42 | 42 |
/** |
| 43 | 43 |
* <p>Constructor for SelectionArbitrator.</p> |
| 44 | 44 |
*/ |
| 45 | 45 |
public SelectionArbitrator(){}
|
| 46 |
|
|
| 46 |
|
|
| 47 | 47 |
/** |
| 48 | 48 |
* <p>Constructor for SelectionArbitrator.</p> |
| 49 | 49 |
* |
| ... | ... | |
| 52 | 52 |
public SelectionArbitrator(IEntityElement selectableComposite){
|
| 53 | 53 |
this.entityElement = selectableComposite; |
| 54 | 54 |
} |
| 55 |
|
|
| 55 |
|
|
| 56 | 56 |
/** {@inheritDoc} */
|
| 57 |
public void widgetSelected(SelectionEvent e) {
|
|
| 57 |
@Override |
|
| 58 |
public void widgetSelected(SelectionEvent e) {
|
|
| 58 | 59 |
Widget widget = e.widget; |
| 59 |
|
|
| 60 |
if(widget instanceof Control){
|
|
| 60 |
|
|
| 61 |
if(widget instanceof Control && !widget.isDisposed()){
|
|
| 61 | 62 |
Control control = (Control) widget; |
| 62 | 63 |
if(isWidgetPartOfFormElement(control, entityElement)){
|
| 63 | 64 |
if(entityElement.getEntity() != null){
|
| ... | ... | |
| 65 | 66 |
setSelection(selection); |
| 66 | 67 |
} |
| 67 | 68 |
} |
| 68 |
}
|
|
| 69 |
} |
|
| 69 | 70 |
} |
| 70 |
|
|
| 71 |
|
|
| 71 | 72 |
private void setSelection(ISelection selection){
|
| 72 | 73 |
for(ISelectionProvider selectionProvider : selectionProviders){
|
| 73 | 74 |
selectionProvider.setSelection(selection); |
| 74 | 75 |
} |
| 75 | 76 |
} |
| 76 |
|
|
| 77 |
|
|
| 77 | 78 |
private boolean isWidgetPartOfFormElement(Control widget, ICdmFormElement element){
|
| 78 | 79 |
// check if widget is the controls |
| 79 | 80 |
if(widget.equals(element.getLayoutComposite())){
|
| 80 | 81 |
return true; |
| 81 | 82 |
} |
| 82 |
|
|
| 83 |
|
|
| 83 | 84 |
// check if widget is controlled by the given element |
| 84 | 85 |
for(Control control : element.getControls()){
|
| 85 |
if(control.equals(widget)) return true; |
|
| 86 |
if(control.equals(widget)) {
|
|
| 87 |
return true; |
|
| 88 |
} |
|
| 86 | 89 |
} |
| 87 |
|
|
| 90 |
|
|
| 88 | 91 |
// descend into child elements |
| 89 | 92 |
for(ICdmFormElement childElement : element.getElements()){
|
| 90 | 93 |
isWidgetPartOfFormElement(widget, childElement); |
| 91 | 94 |
} |
| 92 |
|
|
| 95 |
|
|
| 93 | 96 |
return false; |
| 94 | 97 |
} |
| 95 |
|
|
| 98 |
|
|
| 96 | 99 |
/** |
| 97 | 100 |
* <p>addSelectionProvider</p> |
| 98 | 101 |
* |
| ... | ... | |
| 101 | 104 |
public void addSelectionProvider(ISelectionProvider selectionProvider){
|
| 102 | 105 |
selectionProviders.add(selectionProvider); |
| 103 | 106 |
} |
| 104 |
|
|
| 107 |
|
|
| 105 | 108 |
/** |
| 106 | 109 |
* <p>removeSelectionProvider</p> |
| 107 | 110 |
* |
| ... | ... | |
| 110 | 113 |
public void removeSelectionProvider(ISelectionProvider selectionProvider){
|
| 111 | 114 |
selectionProviders.remove(selectionProvider); |
| 112 | 115 |
} |
| 113 |
|
|
| 116 |
|
|
| 114 | 117 |
/** {@inheritDoc} */
|
| 115 |
public void widgetDefaultSelected(SelectionEvent e) {}
|
|
| 118 |
@Override |
|
| 119 |
public void widgetDefaultSelected(SelectionEvent e) {}
|
|
| 116 | 120 |
|
| 117 | 121 |
/** |
| 118 | 122 |
* <p>Getter for the field <code>entityElement</code>.</p> |
| ... | ... | |
| 133 | 137 |
} |
| 134 | 138 |
|
| 135 | 139 |
/** {@inheritDoc} */
|
| 136 |
public void selectionChanged(SelectionChangedEvent event) {
|
|
| 140 |
@Override |
|
| 141 |
public void selectionChanged(SelectionChangedEvent event) {
|
|
| 137 | 142 |
// if(!(event.getSource() instanceof CdmDetailsViewer)){
|
| 138 | 143 |
// return; |
| 139 | 144 |
// } |
| 140 |
|
|
| 145 |
|
|
| 141 | 146 |
try{
|
| 142 | 147 |
entityElement.setSelected(false); |
| 143 | 148 |
}catch(SWTException e){
|
| 144 | 149 |
MessagingUtils.error(getClass(), "Widgets of element are disposed", e); |
| 145 | 150 |
} |
| 146 |
ISelection selection = event.getSelection();
|
|
| 151 |
ISelection selection = event.getSelection(); |
|
| 147 | 152 |
if(selection != null && selection instanceof StructuredSelection){
|
| 148 | 153 |
Object selectedElement = ((StructuredSelection) selection).getFirstElement(); |
| 149 | 154 |
if(entityElement.getEntity() != null && entityElement.getEntity().equals(selectedElement)){
|
Also available in: Unified diff
avoid potential widget is disposed exception