Example usage for org.eclipse.jface.internal MenuManagerEventHelper showHelper

Introduction

In this page you can find the example usage for org.eclipse.jface.internal MenuManagerEventHelper showHelper.

Prototype

IMenuListener2 showHelper

To view the source code for org.eclipse.jface.internal MenuManagerEventHelper showHelper.

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Usage

From source file:org.eclipse.e4.ui.workbench.renderers.swt.MenuManagerRenderer.java

License:Open Source License

@PostConstruct
public void init() {
    eventBroker.subscribe(UIEvents.UILabel.TOPIC_ALL, itemUpdater);
    eventBroker.subscribe(UIEvents.Item.TOPIC_SELECTED, selectionUpdater);
    eventBroker.subscribe(UIEvents.Item.TOPIC_ENABLED, enabledUpdater);
    eventBroker.subscribe(UIEvents.UIElement.TOPIC_ALL, toBeRenderedUpdater);

    context.set(MenuManagerRenderer.class, this);
    Display display = context.get(Display.class);
    rendererFilter = ContextInjectionFactory.make(MenuManagerRendererFilter.class, context);
    display.addFilter(SWT.Show, rendererFilter);
    display.addFilter(SWT.Hide, rendererFilter);
    display.addFilter(SWT.Dispose, rendererFilter);
    context.set(MenuManagerRendererFilter.class, rendererFilter);
    MenuManagerEventHelper.showHelper = ContextInjectionFactory.make(MenuManagerShowProcessor.class, context);
    MenuManagerEventHelper.hideHelper = ContextInjectionFactory.make(MenuManagerHideProcessor.class, context);

}

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From source file:org.eclipse.e4.ui.workbench.renderers.swt.MenuManagerRenderer.java

License:Open Source License

@PreDestroy
public void contextDisposed() {
    eventBroker.unsubscribe(itemUpdater);
    eventBroker.unsubscribe(selectionUpdater);
    eventBroker.unsubscribe(enabledUpdater);
    eventBroker.unsubscribe(toBeRenderedUpdater);

    ContextInjectionFactory.uninject(MenuManagerEventHelper.showHelper, context);
    MenuManagerEventHelper.showHelper = null;
    ContextInjectionFactory.uninject(MenuManagerEventHelper.hideHelper, context);
    MenuManagerEventHelper.hideHelper = null;

    context.remove(MenuManagerRendererFilter.class);
    Display display = context.get(Display.class);
    if (display != null && !display.isDisposed() && rendererFilter != null) {
        display.removeFilter(SWT.Show, rendererFilter);
        display.removeFilter(SWT.Hide, rendererFilter);
        display.removeFilter(SWT.Dispose, rendererFilter);
    }//from   w ww  .j  a v  a2s.  com
    if (rendererFilter != null) {
        ContextInjectionFactory.uninject(rendererFilter, context);
        rendererFilter = null;
    }
    context.remove(MenuManagerRenderer.class);
}

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