Example usage for com.google.gwt.event.logical.shared BeforeSelectionEvent fire

Introduction

In this page you can find the example usage for com.google.gwt.event.logical.shared BeforeSelectionEvent fire.

Prototype

public static <T> BeforeSelectionEvent<T> fire(HasBeforeSelectionHandlers<T> source, T item) 

Source Link

Document

Fires a before selection event on all registered handlers in the handler manager.

Usage

From source file:at.ac.fhcampuswien.atom.client.gui.frames.TabLayoutPanelCopy.java

License:Apache License

/**
 * Programmatically selects the specified tab.
 *
 * @param index the index of the tab to be selected
 * @param fireEvents true to fire events, false not to
 *///w  w  w . j  a  v  a 2  s . com
public void selectTab(int index, boolean fireEvents) {
    checkIndex(index);
    if (index == selectedIndex) {
        return;
    }

    // Fire the before selection event, giving the recipients a chance to
    // cancel the selection.
    if (fireEvents) {
        BeforeSelectionEvent<Integer> event = BeforeSelectionEvent.fire(this, index);
        if ((event != null) && event.isCanceled()) {
            return;
        }
    }

    // Update the tabs being selected and unselected.
    if (selectedIndex != -1) {
        tabs.get(selectedIndex).setSelected(false);
    }

    deckPanel.showWidget(index);
    tabs.get(index).setSelected(true);
    selectedIndex = index;

    // Fire the selection event.
    if (fireEvents) {
        SelectionEvent.fire(this, index);
    }
}

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From source file:bufferings.ktr.wjr.client.ui.widget.WjrTabPanel.java

License:Apache License

/**
 * Selects the tab and show its contents.
 * /*  ww w . j  a  v  a2s.  co m*/
 * @param index
 *          The index of the tab to show.
 */
public void selectTab(int index) {
    checkIndex(index);
    if (index == selectedIndex) {
        return;
    }

    BeforeSelectionEvent<Integer> event = BeforeSelectionEvent.fire(this, index);
    if ((event != null) && event.isCanceled()) {
        return;
    }

    if (selectedIndex != -1) {
        Widget child = children.get(selectedIndex);
        Element container = panel.getWidgetContainerElement(child);
        container.getStyle().setDisplay(Display.NONE);
        child.setVisible(false);
        tabs.get(selectedIndex).setSelected(false);
    }

    Widget child = children.get(index);
    Element container = panel.getWidgetContainerElement(child);
    container.getStyle().clearDisplay();
    child.setVisible(true);
    tabs.get(index).setSelected(true);
    selectedIndex = index;

    SelectionEvent.fire(this, index);
}

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From source file:cc.alcina.framework.gwt.client.widget.CustomisableTabPanel.java

License:Apache License

/**
 * @deprecated Use {@link BeforeSelectionHandler#onBeforeSelection} instead
 */// ww w  .  java 2 s. co  m
@Deprecated
public boolean onBeforeTabSelected(SourcesTabEvents sender, int tabIndex) {
    BeforeSelectionEvent<Integer> event = BeforeSelectionEvent.fire(this, tabIndex);
    return event == null || !event.isCanceled();
}

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From source file:cc.alcina.framework.gwt.client.widget.FlowTabBar.java

License:Apache License

/**
 * Programmatically selects the specified tab. Use index -1 to specify that
 * no tab should be selected.//from w  w  w  .j a va 2 s  .c om
 * 
 * @param index
 *            the index of the tab to be selected.
 * @return <code>true</code> if successful, <code>false</code> if the change
 *         is denied by the {@link TabListener}.
 */
public boolean selectTab(int index) {
    BeforeSelectionEvent<?> event = BeforeSelectionEvent.fire(this, index);
    if (event != null && event.isCanceled()) {
        return false;
    }
    // Check for -1.
    setSelectionStyle(selectedTab, false);
    if (index == -1) {
        selectedTab = null;
        return true;
    }
    selectedTab = tabs.get(index);
    setSelectionStyle(selectedTab, true);
    SelectionEvent.fire(this, index);
    return true;
}

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From source file:com.agnie.gwt.common.client.widget.TabBar.java

License:Open Source License

/**
 * Programmatically selects the specified tab. Use index -1 to specify that no tab should be selected.
 * //from   w  w w . j  a  v  a 2 s. com
 * @param index
 *            the index of the tab to be selected
 * @param fireEvents
 *            true to fire events, false not to
 * @return <code>true</code> if successful, <code>false</code> if the change is denied by the
 *         {@link BeforeSelectionHandler}.
 */
public boolean selectTab(int index, boolean fireEvents) {
    checkTabIndex(index);

    if (fireEvents) {
        BeforeSelectionEvent<?> event = BeforeSelectionEvent.fire(this, index);
        if (event != null && event.isCanceled()) {
            return false;
        }
    }

    // Check for -1.
    setSelectionStyle(selectedTab, false);
    if (index == -1) {
        selectedTab = null;
        return true;
    }

    selectedTab = panel.getWidget(index);
    setSelectionStyle(selectedTab, true);
    if (fireEvents) {
        SelectionEvent.fire(this, index);
    }
    return true;
}

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From source file:com.agnie.gwt.common.client.widget.WizardBar.java

License:Open Source License

private boolean checkForBeforeSelectionEvent(int index) {

    BeforeSelectionEvent<?> event = BeforeSelectionEvent.fire(this, index);
    if (event != null && event.isCanceled()) {
        return false;
    }//from w w  w  .  ja  va2  s  . c o  m
    return true;
}

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From source file:com.edgenius.wiki.gwt.client.widgets.URLTabBar.java

License:Open Source License

public int addTab(String title, Image icon) {
    FlowPanel tab = new FlowPanel();
    if (icon != null)
        tab.add(icon);//from w  w w .  j a va2 s.com

    ClickLink link = new ClickLink(title);
    Label label = new Label(title);
    tab.add(link);
    tab.add(label);
    link.setStyleName(Css.TEXT);
    label.setStyleName(Css.TEXT);
    //init status: only show link
    label.setVisible(false);
    //tab.setStyleName(Css.DESELECTED);
    tabBar.add(tab);

    //increase uniqueID every new tab
    final int tabIndex = uniqueID++;
    link.setObject(tabIndex);

    link.addClickHandler(new ClickHandler() {
        public void onClick(ClickEvent event) {
            BeforeSelectionEvent<Integer> evt = BeforeSelectionEvent.fire(URLTabBar.this, tabIndex);
            if (evt != null && !evt.isCanceled()) {
                select(tabIndex);
                SelectionEvent.fire(URLTabBar.this, tabIndex);

            }
        }
    });

    return tabIndex;
}

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From source file:com.edgenius.wiki.gwt.client.widgets.URLTabPanel.java

License:Open Source License

/**
 * !!! This method must call after the widget is put into HMTL body. Please refer to 
 * URLPanel.setURL()//from  www  . ja  v a 2s.  c  om
 * 
 * @param uniqueID
 * @param fireEvent: TODO: 
 */
public void setSelected(int uniqueID, boolean fireEvent) {
    boolean go = true;
    if (fireEvent) {
        BeforeSelectionEvent<Integer> evt = BeforeSelectionEvent.fire(this, uniqueID);
        go = evt != null ? !evt.isCanceled() : false;
    }
    if (go) {
        tabBar.select(uniqueID);
        select(uniqueID);
        if (fireEvent)
            SelectionEvent.fire(this, uniqueID);

    }

}

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From source file:com.edgenius.wiki.gwt.client.widgets.URLTabPanel.java

License:Open Source License

/**
 * The reason call uniqueID rather than tabIdx is,  tabIdx maybe change for each tab if there is
 * insert etc method. But uniqueID won't. Actually, here uniqueID == tabIdx
 *//* www . ja  v  a  2s. co  m*/
public void onBeforeSelection(BeforeSelectionEvent<Integer> event) {
    //OK,if choose same tab, do nothing 
    Integer uniqueID = event.getItem();
    if (selected == uniqueID) {
        event.cancel();
        return;
    }

    BeforeSelectionEvent.fire(this, uniqueID);

    LazyLoadingPanel lazyPanel = lazy.get(uniqueID);
    if (lazyPanel != null) {
        lazyPanel.load();
    }

}

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From source file:com.sencha.gxt.widget.core.client.menu.Item.java

License:sencha.com license

@SuppressWarnings({ "unchecked", "rawtypes" })
protected void onClick(NativeEvent be) {
    be.<XEvent>cast().stopEvent();

    BeforeSelectionEvent<Item> itemEvent = BeforeSelectionEvent.fire(this, this);

    BeforeSelectionEvent<Item> menuEvent = null;

    if (getParent() instanceof HasBeforeSelectionHandlers<?>) {
        menuEvent = BeforeSelectionEvent.fire((HasBeforeSelectionHandlers) getParent(), this);
    }//from  w w  w . jav a  2  s.  co  m

    if (!disabled && (itemEvent == null || !itemEvent.isCanceled())
            && (menuEvent == null || !menuEvent.isCanceled())) {
        if (getParent() instanceof HasSelectionHandlers<?>) {
            SelectionEvent.fire((HasSelectionHandlers) getParent(), this);
        }

        SelectionEvent.fire(this, this);
        handleClick(be);
    }
}

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