Example usage for com.google.gwt.user.client.ui SplitterBeforeResizeHandler SplitterBeforeResizeHandler

Introduction

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

Prototype

SplitterBeforeResizeHandler

Source Link

Usage

From source file:org.rstudio.core.client.layout.DualWindowLayoutPanel.java

License:Open Source License

public DualWindowLayoutPanel(final EventBus eventBus, final LogicalWindow windowA, final LogicalWindow windowB,
        Session session, String clientStateKeyName, final WindowState topWindowDefaultState,
        final int defaultSplitterPos) {
    windowA_ = windowA;//  w  w w. ja v a 2s  .  c  om
    windowB_ = windowB;
    session_ = session;
    setSize("100%", "100%");
    layout_ = new BinarySplitLayoutPanel(new Widget[] { windowA.getNormal(), windowA.getMinimized(),
            windowB.getNormal(), windowB.getMinimized() }, 3);
    layout_.setSize("100%", "100%");

    topWindowStateChangeManager_ = new WindowStateChangeManager(session);
    bottomWindowStateChangeManager_ = new WindowStateChangeHandler() {
        public void onWindowStateChange(WindowStateChangeEvent event) {
            WindowState topState;
            switch (event.getNewState()) {
            case NORMAL:
                topState = NORMAL;
                break;
            case MAXIMIZE:
                topState = MINIMIZE;
                break;
            case MINIMIZE:
                topState = MAXIMIZE;
                break;
            case HIDE:
                topState = EXCLUSIVE;
                break;
            case EXCLUSIVE:
                topState = HIDE;
                break;
            default:
                throw new IllegalArgumentException("Unknown WindowState " + event.getNewState());
            }
            windowA_.onWindowStateChange(new WindowStateChangeEvent(topState));
        }
    };

    hookEvents();

    new WindowLayoutStateValue(session.getSessionInfo().getClientState(), clientStateKeyName,
            topWindowDefaultState, defaultSplitterPos);

    setWidget(layout_);

    if (eventBus != null) {
        layout_.addSplitterBeforeResizeHandler(new SplitterBeforeResizeHandler() {
            public void onSplitterBeforeResize(SplitterBeforeResizeEvent event) {
                // If the splitter ends up causing a minimize operation, then
                // we'll need to have saved the normal height for when the
                // user decides to restore the panel.
                snapMinimizeNormalHeight_ = new NormalHeight(layout_.getSplitterBottom(),
                        layout_.getOffsetHeight(), Window.getClientHeight());

                eventBus.fireEvent(new GlassVisibilityEvent(true));
            }
        });
        layout_.addSplitterResizedHandler(new SplitterResizedHandler() {
            public void onSplitterResized(SplitterResizedEvent event) {
                WindowState topState = resizePanes(layout_.getSplitterBottom());

                // we're already in normal if the splitter is being invoked
                if (topState != WindowState.NORMAL) {
                    topWindowStateChangeManager_.onWindowStateChange(new WindowStateChangeEvent(topState));
                }

                eventBus.fireEvent(new GlassVisibilityEvent(false));
            }
        });
    }
}

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From source file:org.rstudio.studio.client.common.NotifyingSplitLayoutPanel.java

License:Open Source License

@Inject
public NotifyingSplitLayoutPanel(int splitterSize, EventBus events) {
    super(splitterSize);

    events_ = events;/*from   www. j a va  2 s. c  om*/

    addSplitterBeforeResizeHandler(new SplitterBeforeResizeHandler() {
        public void onSplitterBeforeResize(SplitterBeforeResizeEvent event) {
            events_.fireEvent(new GlassVisibilityEvent(true));
        }
    });

    addSplitterResizedHandler(new SplitterResizedHandler() {
        public void onSplitterResized(SplitterResizedEvent event) {
            events_.fireEvent(new GlassVisibilityEvent(false));
        }
    });
}

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