Example usage for com.google.gwt.user.client.ui MenuItem getParentMenu

Introduction

In this page you can find the example usage for com.google.gwt.user.client.ui MenuItem getParentMenu.

Prototype

public MenuBar getParentMenu() 

Source Link

Document

Gets the menu that contains this item.

Usage

From source file:com.vaadin.client.ui.menubar.MenuBar.java

License:Apache License

protected void doItemAction(final MenuItem item, boolean fireCommand) {
    // If the given item is already showing its menu, we're done.
    if ((shownChildMenu != null) && (item.getSubMenu() == shownChildMenu)) {
        return;/*from  w  w  w  .j  a v  a 2  s . c o  m*/
    }

    // If another item is showing its menu, then hide it.
    if (shownChildMenu != null) {
        shownChildMenu.onHide();
        popup.hide();
    }

    // If the item has no popup, optionally fire its command.
    if (item.getSubMenu() == null) {
        if (fireCommand) {
            // Close this menu and all of its parents.
            closeAllParents();

            // Fire the item's command.
            final Command cmd = item.getCommand();
            if (cmd != null) {
                Scheduler.get().scheduleDeferred(cmd);
            }
        }
        return;
    }

    // Ensure that the item is selected.
    selectItem(item);

    // Create a new popup for this item, and position it next to
    // the item (below if this is a horizontal menu bar, to the
    // right if it's a vertical bar).
    popup = new VOverlay(true) {
        {
            setWidget(item.getSubMenu());
            item.getSubMenu().onShow();
            setOwner(MenuBar.this);
        }

        @Override
        public boolean onEventPreview(Event event) {
            // Hook the popup panel's event preview. We use this to keep it
            // from
            // auto-hiding when the parent menu is clicked.
            switch (DOM.eventGetType(event)) {
            case Event.ONCLICK:
                // If the event target is part of the parent menu, suppress
                // the
                // event altogether.
                final Element target = DOM.eventGetTarget(event);
                final Element parentMenuElement = item.getParentMenu().getElement();
                if (DOM.isOrHasChild(parentMenuElement, target)) {
                    return false;
                }
                break;
            }

            return super.onEventPreview(event);
        }
    };
    popup.addPopupListener(this);

    if (vertical) {
        popup.setPopupPosition(item.getAbsoluteLeft() + item.getOffsetWidth(), item.getAbsoluteTop());
    } else {
        popup.setPopupPosition(item.getAbsoluteLeft(), item.getAbsoluteTop() + item.getOffsetHeight());
    }

    shownChildMenu = item.getSubMenu();
    item.getSubMenu().parentMenu = this;

    // Show the popup, ensuring that the menubar's event preview remains on
    // top
    // of the popup's.
    popup.show();
}

---

From source file:com.vaadin.terminal.gwt.client.ui.MenuBar.java

License:Open Source License

void doItemAction(final MenuItem item, boolean fireCommand) {
    // If the given item is already showing its menu, we're done.
    if ((shownChildMenu != null) && (item.getSubMenu() == shownChildMenu)) {
        return;//  w  w  w.ja va  2s.  co  m
    }

    // If another item is showing its menu, then hide it.
    if (shownChildMenu != null) {
        shownChildMenu.onHide();
        popup.hide();
    }

    // If the item has no popup, optionally fire its command.
    if (item.getSubMenu() == null) {
        if (fireCommand) {
            // Close this menu and all of its parents.
            closeAllParents();

            // Fire the item's command.
            final Command cmd = item.getCommand();
            if (cmd != null) {
                Scheduler.get().scheduleDeferred(cmd);
            }
        }
        return;
    }

    // Ensure that the item is selected.
    selectItem(item);

    // Create a new popup for this item, and position it next to
    // the item (below if this is a horizontal menu bar, to the
    // right if it's a vertical bar).
    popup = new VOverlay(true) {
        {
            setWidget(item.getSubMenu());
            item.getSubMenu().onShow();
        }

        @Override
        public boolean onEventPreview(Event event) {
            // Hook the popup panel's event preview. We use this to keep it
            // from
            // auto-hiding when the parent menu is clicked.
            switch (DOM.eventGetType(event)) {
            case Event.ONCLICK:
                // If the event target is part of the parent menu, suppress
                // the
                // event altogether.
                final Element target = DOM.eventGetTarget(event);
                final Element parentMenuElement = item.getParentMenu().getElement();
                if (DOM.isOrHasChild(parentMenuElement, target)) {
                    return false;
                }
                break;
            }

            return super.onEventPreview(event);
        }
    };
    popup.addPopupListener(this);

    if (vertical) {
        popup.setPopupPosition(item.getAbsoluteLeft() + item.getOffsetWidth(), item.getAbsoluteTop());
    } else {
        popup.setPopupPosition(item.getAbsoluteLeft(), item.getAbsoluteTop() + item.getOffsetHeight());
    }

    shownChildMenu = item.getSubMenu();
    item.getSubMenu().parentMenu = this;

    // Show the popup, ensuring that the menubar's event preview remains on
    // top
    // of the popup's.
    popup.show();
}

---

From source file:net.sf.mmm.client.ui.impl.gwt.widget.menu.adapter.UiWidgetAdapterGwtMenuItemBase.java

License:Apache License

/**
 * {@inheritDoc}//from  w ww. j  av  a  2s. c om
 */
@Override
public void removeFromParent() {

    // not supported by GWT
    MenuItem item = getToplevelWidget();
    MenuBar menu = item.getParentMenu();
    if (menu != null) {
        menu.removeItem(item);
    }
}

---

From source file:org.pentaho.mantle.client.MantleMenuBar.java

License:Open Source License

private void hidePDFFrames(MenuItem item) {
    Frame frame = getActiveBrowserPerspectiveFrame();
    if (frame == null) {
        return;//from  w  ww. j  a  va 2s.  c  om
    }
    if (item.getSubMenu() != null && item.getSubMenu().isVisible()) {
        if (ElementUtils.elementsOverlap(item.getSubMenu().getElement(),
                getActiveBrowserPerspectiveFrame().getElement())) {
            FrameUtils.setEmbedVisibility(getActiveBrowserPerspectiveFrame(), false);
        }
    } else if (item.getParentMenu() != null) { // popups
        if (ElementUtils.elementsOverlap(item.getParentMenu().getElement(),
                getActiveBrowserPerspectiveFrame().getElement())) {
            FrameUtils.setEmbedVisibility(getActiveBrowserPerspectiveFrame(), false);
        }
    }
}

---