IsDiagramEditorOpenTest.java

package org.flowerplatform.eclipse;
import org.eclipse.core.expressions.PropertyTester;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IEditorReference;
import org.eclipse.ui.PlatformUI;
import org.flowerplatform.eclipse.part.FlowerDiagramEditor;


public class IsDiagramEditorOpenTest extends PropertyTester {
	public static final String PROPERTY_IS_DIAGRAM_OPEN = "isDiagramEditorOpen";
	
	public IsDiagramEditorOpenTest() {
	}

	@Override
	public boolean test(Object receiver, String property, Object[] args,
			Object expectedValue) {
		if (PROPERTY_IS_DIAGRAM_OPEN.equals(property)) {
			IEditorReference[] editorReference = PlatformUI.getWorkbench()
					.getActiveWorkbenchWindow().getActivePage()
					.getEditorReferences();
			for (int i = editorReference.length - 1; i >= 0; i--) {
				IEditorPart edit = editorReference[i].getEditor(false);
				if (edit instanceof FlowerDiagramEditor) {
					return true;
				}
			}
		}
		return false;
	}

}