Examples with ActiveShellExpression org.eclipse.ui.ActiveShellExpression used on opensource projects

Example 1 with ActiveShellExpression

use of org.eclipse.ui.ActiveShellExpression in project xtext-eclipse by eclipse.

the class CodetemplatesEmbeddedEditorActions method createFocusAndDisposeListeners.

@Override
protected void createFocusAndDisposeListeners() {
    final List<IHandlerActivation> handlerActivations = Lists.newArrayListWithExpectedSize(3);
    final IHandlerService handlerService = workbench.getAdapter(IHandlerService.class);
    final IContextService contextService = workbench.getAdapter(IContextService.class);
    Shell shell = viewer.getTextWidget().getShell();
    final ActiveShellExpression expression = new ActiveShellExpression(shell);
    AtomicReference<IContextActivation> contextActivationHolder = new AtomicReference<>();
    shell.addDisposeListener(new DisposeListener() {

        @Override
        public void widgetDisposed(DisposeEvent e) {
            handlerService.deactivateHandlers(handlerActivations);
        }
    });
    viewer.getTextWidget().addFocusListener(new FocusListener() {

        @Override
        public void focusLost(FocusEvent e) {
            IContextActivation contextActivation = contextActivationHolder.get();
            if (contextActivation != null) {
                contextService.deactivateContext(contextActivation);
            }
            handlerService.deactivateHandlers(handlerActivations);
            handlerActivations.clear();
        }

        @Override
        public void focusGained(FocusEvent e) {
            final IContextActivation contextActivation = contextService.activateContext(EMBEDDED_TEXT_EDITOR_SCOPE, expression);
            contextActivationHolder.set(contextActivation);
            for (final IAction action : allActions.values()) {
                handlerActivations.add(handlerService.activateHandler(action.getActionDefinitionId(), new ActionHandler(action), expression, true));
            }
        }
    });
}

Example 2 with ActiveShellExpression

use of org.eclipse.ui.ActiveShellExpression in project eclipse-integration-commons by spring-projects.

the class QuickSearchDialog method createViewMenu.

private void createViewMenu(Composite parent) {
    toolBar = new ToolBar(parent, SWT.FLAT);
    toolItem = new ToolItem(toolBar, SWT.PUSH, 0);
    GridData data = new GridData();
    data.horizontalAlignment = GridData.END;
    toolBar.setLayoutData(data);
    toolBar.addMouseListener(new MouseAdapter() {

        public void mouseDown(MouseEvent e) {
            showViewMenu();
        }
    });
    toolItem.setImage(WorkbenchImages.getImage(IWorkbenchGraphicConstants.IMG_LCL_VIEW_MENU));
    toolItem.setToolTipText(WorkbenchMessages.FilteredItemsSelectionDialog_menu);
    toolItem.addSelectionListener(new SelectionAdapter() {

        public void widgetSelected(SelectionEvent e) {
            showViewMenu();
        }
    });
    menuManager = new MenuManager();
    fillViewMenu(menuManager);
    IHandlerService service = (IHandlerService) PlatformUI.getWorkbench().getService(IHandlerService.class);
    IHandler handler = new AbstractHandler() {

        public Object execute(ExecutionEvent event) {
            showViewMenu();
            return null;
        }
    };
    showViewHandler = service.activateHandler(IWorkbenchCommandConstants.WINDOW_SHOW_VIEW_MENU, handler, new ActiveShellExpression(getShell()));
}

Example 3 with ActiveShellExpression

use of org.eclipse.ui.ActiveShellExpression in project egit by eclipse.

the class ActionUtils method setGlobalActions.

/**
 * Hooks up the {@link Control} such that the given {@link IAction}s are
 * registered with the given {@link IHandlerService} while the control has
 * the focus. Ensures that actions are properly de-registered when the
 * control is disposed.
 *
 * @param control
 *            to hook up
 * @param actions
 *            to be registered while the control has the focus
 * @param service
 *            to register the actions with
 */
public static void setGlobalActions(Control control, Collection<? extends IAction> actions, IHandlerService service) {
    Collection<IHandlerActivation> handlerActivations = new ArrayList<>();
    control.addDisposeListener(event -> {
        if (!handlerActivations.isEmpty()) {
            service.deactivateHandlers(handlerActivations);
            handlerActivations.clear();
        }
    });
    final ActiveShellExpression expression = new ActiveShellExpression(control.getShell());
    control.addFocusListener(new FocusListener() {

        @Override
        public void focusLost(FocusEvent e) {
            if (!handlerActivations.isEmpty()) {
                service.deactivateHandlers(handlerActivations);
                handlerActivations.clear();
            }
        }

        @Override
        public void focusGained(FocusEvent e) {
            if (!handlerActivations.isEmpty()) {
                // Looks like sometimes we get two focusGained events.
                return;
            }
            for (final IAction action : actions) {
                handlerActivations.add(service.activateHandler(action.getActionDefinitionId(), new ActionHandler(action), expression, false));
                if (action instanceof IUpdate) {
                    ((IUpdate) action).update();
                }
            }
        }
    });
}

Example 4 with ActiveShellExpression

use of org.eclipse.ui.ActiveShellExpression in project xtext-eclipse by eclipse.

the class EmbeddedEditorActions method createFocusAndDisposeListeners.

protected void createFocusAndDisposeListeners() {
    final List<IHandlerActivation> handlerActivations = Lists.newArrayListWithExpectedSize(3);
    final IHandlerService handlerService = workbench.getAdapter(IHandlerService.class);
    final IContextService contextService = workbench.getAdapter(IContextService.class);
    Shell shell = viewer.getTextWidget().getShell();
    final ActiveShellExpression expression = new ActiveShellExpression(shell);
    final IContextActivation contextActivation = contextService.activateContext(EMBEDDED_TEXT_EDITOR_SCOPE, expression);
    shell.addDisposeListener(new DisposeListener() {

        @Override
        public void widgetDisposed(DisposeEvent e) {
            handlerService.deactivateHandlers(handlerActivations);
            contextService.deactivateContext(contextActivation);
        }
    });
    viewer.getTextWidget().addFocusListener(new FocusListener() {

        @Override
        public void focusLost(FocusEvent e) {
            handlerService.deactivateHandlers(handlerActivations);
            handlerActivations.clear();
        }

        @Override
        public void focusGained(FocusEvent e) {
            for (final IAction action : allActions.values()) {
                handlerActivations.add(handlerService.activateHandler(action.getActionDefinitionId(), new ActionHandler(action), expression, true));
            }
        }
    });
}