DecimalBoxViewImpl.java

/*
 * Copyright 2017 Red Hat, Inc. and/or its affiliates.
 *
 * 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 org.kie.workbench.common.forms.common.rendering.client.widgets.decimalBox;

import javax.inject.Inject;

import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.HasValue;
import org.jboss.errai.common.client.dom.TextInput;
import org.jboss.errai.ui.shared.api.annotations.DataField;
import org.jboss.errai.ui.shared.api.annotations.EventHandler;
import org.jboss.errai.ui.shared.api.annotations.SinkNative;
import org.jboss.errai.ui.shared.api.annotations.Templated;

@Templated
public class DecimalBoxViewImpl extends Composite implements DecimalBoxView {

    private DecimalBox presenter;

    @Inject
    @DataField
    private TextInput input;

    @Override
    public void setPresenter(DecimalBox presenter) {
        this.presenter = presenter;
    }

    @Override
    public void setValue(String value) {
        input.setValue(value);
    }

    @Override
    public void setEnabled(boolean enabled) {
        input.setReadOnly(!enabled);
    }

    public void updateValue(Event event) {
        presenter.notifyValueChange(getTextValue());
    }

    @Override
    public String getTextValue() {
        return input.getValue();
    }

    @Override
    public void setId(String id) {
        input.setId(id);
    }

    @Override
    public void setPlaceholder(String placeHolder) {
        input.setAttribute("placeholder",
                           placeHolder);
    }

    @Override
    public void setMaxLength(Integer maxLength) {
        input.setMaxLength(maxLength);
    }

    public void onKeyDown(Event event) {

        int key = event.getKeyCode();
        boolean isShiftPressed = event.getShiftKey();

        if (presenter.isInvalidKeyCode(key,
                                       isShiftPressed)) {
            event.stopPropagation();
            event.preventDefault();
        }
    }

    @SinkNative(Event.ONKEYDOWN | Event.ONCHANGE)
    @EventHandler("input")
    public void onEvent(Event event) {
        switch (event.getTypeInt()) {
            case Event.ONCHANGE:
                updateValue(event);
                break;
            case Event.ONKEYDOWN:
                onKeyDown(event);
                break;
            default:
                break;
        }
    }

    @Override
    public HasValue<Double> wrapped() {
        return presenter;
    }
}