/* (non-Javadoc)
* Method declared on DropTargetAdapter.
* The user has dropped something on the desktop viewer.
*/
public void drop(DropTargetEvent event) {
try {
if (PluginTransfer.getInstance().isSupportedType(event.currentDataType)) {
PluginTransferData pluginData = (PluginTransferData) event.data;
IDropActionDelegate delegate = getPluginAdapter(pluginData);
if (!delegate.run(pluginData.getData(), getCurrentTarget())) {
event.detail = DND.DROP_NONE;
}
} else {
super.drop(event);
}
} catch (CoreException e) {
WorkbenchPlugin.log("Drop Failed", e.getStatus()); // $NON-NLS-1$
}
}
/**
* Loads the class that will perform the action associated with the given drop data.
*
* @param data the drop data
* @return the viewer drop adapter
*/
protected static IDropActionDelegate getPluginAdapter(PluginTransferData data)
throws CoreException {
IExtensionRegistry registry = Platform.getExtensionRegistry();
String adapterName = data.getExtensionId();
IExtensionPoint xpt =
registry.getExtensionPoint(
PlatformUI.PLUGIN_ID, IWorkbenchRegistryConstants.PL_DROP_ACTIONS);
IExtension[] extensions = xpt.getExtensions();
for (int i = 0; i < extensions.length; i++) {
IConfigurationElement[] configs = extensions[i].getConfigurationElements();
if (configs != null && configs.length > 0) {
for (int j = 0; j < configs.length; j++) {
String id = configs[j].getAttribute("id"); // $NON-NLS-1$
if (id != null && id.equals(adapterName)) {
return (IDropActionDelegate) WorkbenchPlugin.createExtension(configs[j], ATT_CLASS);
}
}
}
}
return null;
}