HtmlConnectorDesignComposite.java 文件源码

public void selectionChanged(SelectionChangedEvent event) {
    if (event.getSource() instanceof ISelectionProvider) {
        IStructuredSelection selection = (IStructuredSelection) event.getSelection();
        TreeObject treeObject = (TreeObject) selection.getFirstElement();
        if (treeObject != null) {
            ConnectorTreeObject connectorTreeObject = treeObject.getConnectorTreeObject();
            if (connectorTreeObject != null) {
                Connector connector =  (Connector)connectorTreeObject.getObject();
                if (connector.equals(htmlConnector)) {
                    if (treeObject instanceof TransactionTreeObject) {
                        if (!htmlConnector.isLearning())
                            toolLearn.setEnabled(true);
                    }
                    else {
                        if (!htmlConnector.isLearning())
                            toolLearn.setEnabled(false);
                    }
                }
                else {
                    if (!htmlConnector.isLearning())
                        toolLearn.setEnabled(false);
                }
            }
        }
    }
}