com.haulmont.cuba.web.toolkit.ui.client.gridlayout.CubaGridLayoutConnector.java Source code

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Here is the source code for com.haulmont.cuba.web.toolkit.ui.client.gridlayout.CubaGridLayoutConnector.java

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/*
 * Copyright (c) 2008-2016 Haulmont.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

package com.haulmont.cuba.web.toolkit.ui.client.gridlayout;

import com.google.gwt.user.client.ui.Widget;
import com.haulmont.cuba.web.toolkit.ui.CubaGridLayout;
import com.haulmont.cuba.web.toolkit.ui.client.caption.CubaCaptionWidget;
import com.vaadin.client.*;
import com.vaadin.client.ui.ShortcutActionHandler;
import com.vaadin.client.ui.VGridLayout;
import com.vaadin.client.ui.gridlayout.GridLayoutConnector;
import com.vaadin.client.ui.layout.VLayoutSlot;
import com.vaadin.shared.AbstractComponentState;
import com.vaadin.shared.AbstractFieldState;
import com.vaadin.shared.communication.SharedState;
import com.vaadin.shared.ui.Connect;

@Connect(CubaGridLayout.class)
public class CubaGridLayoutConnector extends GridLayoutConnector implements Paintable {

    @Override
    public CubaGridLayoutWidget getWidget() {
        return (CubaGridLayoutWidget) super.getWidget();
    }

    protected void setDefaultCaptionParameters(CubaCaptionWidget widget) {
    }

    @Override
    public void updateCaption(ComponentConnector childConnector) {
        // CAUTION copied from GridLayoutConnector.updateCaption(ComponentConnector childConnector)
        VGridLayout layout = getWidget();
        VGridLayout.Cell cell = layout.widgetToCell.get(childConnector.getWidget());
        AbstractComponentState state = childConnector.getState();
        if (VCaption.isNeeded(state) || isContextHelpIconEnabled(state)) {
            VLayoutSlot layoutSlot = cell.slot;
            VCaption caption = layoutSlot.getCaption();
            if (caption == null) {
                // use our own caption widget
                caption = new CubaCaptionWidget(childConnector, getConnection());

                setDefaultCaptionParameters((CubaCaptionWidget) caption);

                Widget widget = childConnector.getWidget();

                layout.setCaption(widget, caption);
            }
            caption.updateCaption();
        } else {
            layout.setCaption(childConnector.getWidget(), null);
            getLayoutManager().setNeedsLayout(this);
        }
    }

    protected boolean isContextHelpIconEnabled(SharedState state) {
        return hasContextHelpIconListeners(state)
                || (state instanceof AbstractFieldState) && ((AbstractFieldState) state).contextHelpText != null
                        && !((AbstractFieldState) state).contextHelpText.isEmpty();
    }

    protected boolean hasContextHelpIconListeners(SharedState state) {
        return state.registeredEventListeners != null
                && state.registeredEventListeners.contains(AbstractFieldState.CONTEXT_HELP_ICON_CLICK_EVENT);
    }

    @Override
    public void updateFromUIDL(UIDL uidl, ApplicationConnection client) {
        final int cnt = uidl.getChildCount();
        for (int i = 0; i < cnt; i++) {
            UIDL childUidl = uidl.getChildUIDL(i);
            if (childUidl.getTag().equals("actions")) {
                if (getWidget().getShortcutHandler() == null) {
                    getWidget().setShortcutHandler(new ShortcutActionHandler(uidl.getId(), client));
                }
                getWidget().getShortcutHandler().updateActionMap(childUidl);
            }
        }
    }
}