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1
11 package org.eclipse.swt.dnd;
12
13 import org.eclipse.swt.internal.*;
14 import org.eclipse.swt.widgets.*;
15
16
17 class DNDListener extends TypedListener {
18 Widget dndWidget;
19
23 DNDListener(SWTEventListener listener) {
24 super(listener);
25 }
26 public void handleEvent (Event e) {
27 switch (e.type) {
28 case DND.DragStart: {
29 DragSourceEvent event = new DragSourceEvent((DNDEvent)e);
30 DragSourceEffect sourceEffect = ((DragSource) dndWidget).getDragSourceEffect();
31 if (sourceEffect != null) {
32 sourceEffect.dragStart (event);
33 }
34 ((DragSourceListener) eventListener).dragStart (event);
35 event.updateEvent((DNDEvent)e);
36 break;
37 }
38 case DND.DragEnd: {
39 DragSourceEvent event = new DragSourceEvent((DNDEvent)e);
40 DragSourceEffect sourceEffect = ((DragSource) dndWidget).getDragSourceEffect();
41 if (sourceEffect != null) {
42 sourceEffect.dragFinished (event);
43 }
44 ((DragSourceListener) eventListener).dragFinished (event);
45 event.updateEvent((DNDEvent)e);
46 break;
47 }
48 case DND.DragSetData: {
49 DragSourceEvent event = new DragSourceEvent((DNDEvent)e);
50 DragSourceEffect sourceEffect = ((DragSource) dndWidget).getDragSourceEffect();
51 if (sourceEffect != null) {
52 sourceEffect.dragSetData (event);
53 }
54 ((DragSourceListener) eventListener).dragSetData (event);
55 event.updateEvent((DNDEvent)e);
56 break;
57 }
58 case DND.DragEnter: {
59 DropTargetEvent event = new DropTargetEvent((DNDEvent)e);
60 ((DropTargetListener) eventListener).dragEnter (event);
61 DropTargetEffect dropEffect = ((DropTarget) dndWidget).getDropTargetEffect();
62 if (dropEffect != null) {
63 dropEffect.dragEnter (event);
64 }
65 event.updateEvent((DNDEvent)e);
66 break;
67 }
68 case DND.DragLeave: {
69 DropTargetEvent event = new DropTargetEvent((DNDEvent)e);
70 ((DropTargetListener) eventListener).dragLeave (event);
71 DropTargetEffect dropEffect = ((DropTarget) dndWidget).getDropTargetEffect();
72 if (dropEffect != null) {
73 dropEffect.dragLeave (event);
74 }
75 event.updateEvent((DNDEvent)e);
76 break;
77 }
78 case DND.DragOver: {
79 DropTargetEvent event = new DropTargetEvent((DNDEvent)e);
80 ((DropTargetListener) eventListener).dragOver (event);
81 DropTargetEffect dropEffect = ((DropTarget) dndWidget).getDropTargetEffect();
82 if (dropEffect != null) {
83 dropEffect.dragOver (event);
84 }
85 event.updateEvent((DNDEvent)e);
86 break;
87 }
88 case DND.Drop: {
89 DropTargetEvent event = new DropTargetEvent((DNDEvent)e);
90 ((DropTargetListener) eventListener).drop (event);
91 DropTargetEffect dropEffect = ((DropTarget) dndWidget).getDropTargetEffect();
92 if (dropEffect != null) {
93 dropEffect.drop (event);
94 }
95 event.updateEvent((DNDEvent)e);
96 break;
97 }
98 case DND.DropAccept: {
99 DropTargetEvent event = new DropTargetEvent((DNDEvent)e);
100 ((DropTargetListener) eventListener).dropAccept (event);
101 DropTargetEffect dropEffect = ((DropTarget) dndWidget).getDropTargetEffect();
102 if (dropEffect != null) {
103 dropEffect.dropAccept (event);
104 }
105 event.updateEvent((DNDEvent)e);
106 break;
107 }
108 case DND.DragOperationChanged: {
109 DropTargetEvent event = new DropTargetEvent((DNDEvent)e);
110 ((DropTargetListener) eventListener).dragOperationChanged (event);
111 DropTargetEffect dropEffect = ((DropTarget) dndWidget).getDropTargetEffect();
112 if (dropEffect != null) {
113 dropEffect.dragOperationChanged (event);
114 }
115 event.updateEvent((DNDEvent)e);
116 break;
117 }
118
119 }
120 }
121 }
122 |
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