com.haulmont.cuba.web.widgets.client.verticalmenu.FocusableFlowPanel.java Source code

Introduction

Here is the source code for com.haulmont.cuba.web.widgets.client.verticalmenu.FocusableFlowPanel.java

Source

/*
 * Copyright (c) 2008-2017 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.widgets.client.verticalmenu;

import com.google.gwt.event.dom.client.*;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.impl.FocusImpl;
import com.vaadin.client.Focusable;

public class FocusableFlowPanel extends FlowPanel
        implements HasFocusHandlers, HasBlurHandlers, HasKeyDownHandlers, HasKeyPressHandlers, Focusable {

    public FocusableFlowPanel() {
        getElement().setTabIndex(0);
    }

    @Override
    public HandlerRegistration addFocusHandler(FocusHandler handler) {
        return addDomHandler(handler, FocusEvent.getType());
    }

    @Override
    public HandlerRegistration addBlurHandler(BlurHandler handler) {
        return addDomHandler(handler, BlurEvent.getType());
    }

    @Override
    public HandlerRegistration addKeyDownHandler(KeyDownHandler handler) {
        return addDomHandler(handler, KeyDownEvent.getType());
    }

    @Override
    public HandlerRegistration addKeyPressHandler(KeyPressHandler handler) {
        return addDomHandler(handler, KeyPressEvent.getType());
    }

    protected void setFocus(boolean focus) {
        if (focus) {
            FocusImpl.getFocusImplForPanel().focus(getElement());
        } else {
            FocusImpl.getFocusImplForPanel().blur(getElement());
        }
    }

    @Override
    public void focus() {
        setFocus(true);
    }
}