com.haulmont.cuba.web.toolkit.ui.client.checkbox.CubaCheckBoxWidget.java Source code

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Here is the source code for com.haulmont.cuba.web.toolkit.ui.client.checkbox.CubaCheckBoxWidget.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.checkbox;

import com.google.gwt.dom.client.Element;
import com.google.gwt.event.dom.client.BlurEvent;
import com.google.gwt.event.dom.client.BlurHandler;
import com.google.gwt.event.dom.client.FocusEvent;
import com.google.gwt.event.dom.client.FocusHandler;
import com.google.gwt.i18n.client.HasDirection;
import com.vaadin.client.BrowserInfo;
import com.vaadin.client.ui.Icon;
import com.vaadin.client.ui.VCheckBox;

public class CubaCheckBoxWidget extends VCheckBox implements FocusHandler, BlurHandler {

    protected boolean captionManagedByLayout = false;
    protected Element contextHelpIcon;

    public CubaCheckBoxWidget() {
        addBlurHandler(this);
        addFocusHandler(this);

        updateCaptionStyle();
    }

    @Override
    public void setText(String text) {
        if (!captionManagedByLayout) {
            super.setText(text);

            updateCaptionStyle();
        }
    }

    @Override
    public void setText(String text, HasDirection.Direction dir) {
        if (!captionManagedByLayout) {
            super.setText(text, dir);

            updateCaptionStyle();
        }
    }

    @Override
    public void setFocus(boolean focused) {
        super.setFocus(focused);

        if (BrowserInfo.get().isWebkit()) {
            clearWebkitTextSelection();
        }
    }

    @Override
    public void onFocus(FocusEvent arg) {
        addStyleDependentName("focus");
    }

    public static native void clearWebkitTextSelection()/*-{
                                                        if ($wnd.getSelection) {
                                                        if ($wnd.getSelection().empty) {  // only for Chrome
                                                        $wnd.getSelection().empty();
                                                        }
                                                        }
                                                        }-*/ ;

    @Override
    public void onBlur(BlurEvent arg) {
        removeStyleDependentName("focus");
    }

    protected void updateCaptionStyle() {
        if (getText() == null || "".equals(getText())) {
            addStyleDependentName("empty-caption");
        } else {
            removeStyleDependentName("empty-caption");
        }
    }
}