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1
19
20
21 package org.netbeans.modules.palette;
22
23 import java.awt.datatransfer.Transferable  ;
24 import java.io.IOException ;
25 import javax.swing.Action ;
26 import org.netbeans.spi.palette.PaletteController;
27 import org.netbeans.spi.palette.PaletteActions;
28 import org.netbeans.spi.palette.DragAndDropHandler;
29 import org.openide.nodes.*;
30 import org.openide.util.HelpCtx;
31 import org.openide.util.Lookup;
32 import org.openide.util.datatransfer.ExTransferable;
33 import org.openide.util.datatransfer.PasteType;
34
35
40 class ItemNode extends FilterNode {
41
42
43 private Action [] actions;
44
45 public ItemNode( Node originalNode ) {
46 super( originalNode, Children.LEAF );
47 }
48
49 public Action [] getActions(boolean context) {
50 if (actions == null) {
51 Node n = getParentNode();
52 actions = new Action [] {
53 new Utils.CutItemAction( this ),
54 new Utils.CopyItemAction( this ),
55 new Utils.PasteItemAction( n ),
56 null,
57 new Utils.RemoveItemAction( this ),
58 null,
59 new Utils.SortItemsAction( n ),
60 null,
61 new Utils.RefreshPaletteAction()
62 };
63 }
64 PaletteActions customActions = getCustomActions();
65 if( null != customActions ) {
66 return Utils.mergeActions( actions, customActions.getCustomItemActions( getLookup() ) );
67 }
68 return actions;
69 }
70
71 public Transferable clipboardCut() throws java.io.IOException {
72 ExTransferable t = ExTransferable.create( super.clipboardCut() );
73
74 customizeTransferable( t );
75 t.put( createTransferable() );
76
77 return t;
78 }
79
80 public Transferable clipboardCopy() throws IOException {
81 ExTransferable t = ExTransferable.create( super.clipboardCopy() );
82
83 customizeTransferable( t );
84 t.put( createTransferable() );
85
86 return t;
87 }
88
89 public PasteType getDropType( Transferable t, int action, int index ) {
90 return null;
91 }
92
93 public Transferable drag() throws IOException {
94 ExTransferable t = ExTransferable.create( super.drag() );
96 customizeTransferable( t );
97 t.put( createTransferable() );
98
99 return t;
100 }
101
102 private ExTransferable.Single createTransferable() {
103 final Lookup lkp = getLookup();
104 return new ExTransferable.Single( PaletteController.ITEM_DATA_FLAVOR ) {
105 public Object getData () {
106 return lkp;
107 }
108 };
109 }
110
111 private void customizeTransferable( ExTransferable t ) {
112 DragAndDropHandler tp = getTransferableProvider();
113 if( null != tp ) {
114 tp.customize( t, getLookup() );
115 }
116 }
117
118 private PaletteActions getCustomActions() {
119 Node category = getParentNode();
120 assert null != category;
121 Node root = category.getParentNode();
122 assert null != root;
123 return (PaletteActions)root.getLookup().lookup( PaletteActions.class );
124 }
125
126 private DragAndDropHandler getTransferableProvider() {
127 Node category = getParentNode();
128 assert null != category;
129 Node root = category.getParentNode();
130 assert null != root;
131 return (DragAndDropHandler)root.getLookup().lookup( DragAndDropHandler.class );
132 }
133
134 public Action getPreferredAction() {
135
136 PaletteActions customActions = getCustomActions();
137
138 if( null == customActions )
139 return null;;
140
141 return customActions.getPreferredAction( getLookup() );
142 }
143
144 public boolean canDestroy() {
145
146 return !Utils.isReadonly( getOriginal() );
147 }
148
149 Node getOriginalNode() {
150 return getOriginal();
151 }
152
153 public HelpCtx getHelpCtx() {
154 return Utils.getHelpCtx( this, super.getHelpCtx() );
155 }
156 }
157 |
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