src/macosx/classes/sun/lwawt/macosx/CDragSourceContextPeer.java

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*** 105,118 **** dragOrigin.translate(loc.x, loc.y); rootComponent = rootComponent.getParent(); loc = rootComponent.getLocation(); } - //It sure will be LWComponentPeer instance as rootComponent is a Window - PlatformWindow platformWindow = ((LWComponentPeer)rootComponent.getPeer()).getPlatformWindow(); - long nativeViewPtr = CPlatformWindow.getNativeViewPtr(platformWindow); - // If there isn't any drag image make one of default appearance: if (fDragImage == null) this.setDefaultDragImage(component); // Get drag image (if any) as BufferedImage and convert that to CImage: --- 105,114 ----
*** 135,144 **** --- 131,145 ---- fDragCImage = null; dragImageOffset = new Point(0, 0); } try { + //It sure will be LWComponentPeer instance as rootComponent is a Window + PlatformWindow platformWindow = ((LWComponentPeer)rootComponent.getPeer()).getPlatformWindow(); + long nativeViewPtr = CPlatformWindow.getNativeViewPtr(platformWindow); + if (nativeViewPtr == 0L) throw new InvalidDnDOperationException(""); + // Create native dragging source: final long nativeDragSource = createNativeDragSource(component, nativeViewPtr, transferable, triggerEvent, (int) (dragOrigin.getX()), (int) (dragOrigin.getY()), extModifiers, clickCount, timestamp, fDragCImage, dragImageOffset.x, dragImageOffset.y, getDragSourceContext().getSourceActions(), formats, formatMap);