Examples with DiagramGlobalActionHandler org.eclipse.gmf.runtime.diagram.ui.providers.DiagramGlobalActionHandler used on opensource projects

Example 1 with DiagramGlobalActionHandler

use of org.eclipse.gmf.runtime.diagram.ui.providers.DiagramGlobalActionHandler in project statecharts by Yakindu.

the class StatechartDiagramGlobalActionHandlerProvider method getGlobalActionHandler.

/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.gmf.runtime.common.ui.services.action.global.IGlobalActionHandlerProvider#getGlobalActionHandler(org.eclipse.gmf.runtime.common.ui.services.action.global.IGlobalActionHandlerContext)
	 */
@SuppressWarnings("unchecked")
public IGlobalActionHandler getGlobalActionHandler(final IGlobalActionHandlerContext context) {
    /* create the handler */
    if (!getHandlerList().containsKey(context.getActivePart())) {
        // PATCH START
        getHandlerList().put(context.getActivePart(), new StatechartDiagramGlobalActionHandler());
        // PATCH END
        /*
			 * register as a part listener so that the cache can be cleared when
			 * the part is disposed
			 */
        context.getActivePart().getSite().getPage().addPartListener(new IPartListener() {

            private IWorkbenchPart localPart = context.getActivePart();

            /**
             * @see org.eclipse.ui.IPartListener#partActivated(IWorkbenchPart)
             */
            public void partActivated(IWorkbenchPart part) {
            // NULL implementation
            }

            /**
             * @see org.eclipse.ui.IPartListener#partBroughtToTop(IWorkbenchPart)
             */
            public void partBroughtToTop(IWorkbenchPart part) {
            // NULL implementation
            }

            /**
             * @see org.eclipse.ui.IPartListener#partClosed(IWorkbenchPart)
             */
            public void partClosed(IWorkbenchPart part) {
                /* remove the cache associated with the part */
                if (part != null && part == localPart && getHandlerList().containsKey(part)) {
                    getHandlerList().remove(part);
                    localPart.getSite().getPage().removePartListener(this);
                    localPart = null;
                }
            }

            /**
             * @see org.eclipse.ui.IPartListener#partDeactivated(IWorkbenchPart)
             */
            public void partDeactivated(IWorkbenchPart part) {
            // NULL implementation
            }

            /**
             * @see org.eclipse.ui.IPartListener#partOpened(IWorkbenchPart)
             */
            public void partOpened(IWorkbenchPart part) {
            // NULL implementation
            }
        });
    }
    return (DiagramGlobalActionHandler) getHandlerList().get(context.getActivePart());
}