net.scran24.user.client.survey.prompts.RadioButtonQuestion.java Source code

Introduction

Here is the source code for net.scran24.user.client.survey.prompts.RadioButtonQuestion.java

Source

/*
This file is part of Intake24.
    
 Crown copyright, 2012, 2013, 2014.
    
This software is licensed under the Open Government Licence 3.0:
    
http://www.nationalarchives.gov.uk/doc/open-government-licence/
*/

package net.scran24.user.client.survey.prompts;

import net.scran24.common.client.UnorderedList;
import net.scran24.common.client.WidgetFactory;
import net.scran24.user.client.ShepherdTour;
import net.scran24.user.client.survey.prompts.messages.HelpMessages;

import org.pcollections.client.PVector;
import org.workcraft.gwt.shared.client.Option;

import com.google.gwt.event.dom.client.FocusEvent;
import com.google.gwt.event.dom.client.FocusHandler;
import com.google.gwt.safehtml.shared.SafeHtml;
import com.google.gwt.safehtml.shared.SafeHtmlUtils;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.RadioButton;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.Widget;

public class RadioButtonQuestion extends Composite {
    final public PVector<String> choices;

    final private RadioButton[] optionButtons;
    final private Option<String> otherOptionName;
    final private FlowPanel warningDiv;
    final private FlowPanel contents;

    private RadioButton otherOption;
    private TextBox otherBox;

    public final FlowPanel promptPanel;
    public final Widget radioButtons;

    public Option<String> getChoice() {
        for (int i = 0; i < choices.size(); i++)
            if (optionButtons[i].getValue())
                return Option.some(choices.get(i));

        if (!otherOptionName.isEmpty() && otherOption.getValue())
            return Option.some(otherBox.getText());

        return Option.none();
    }

    public void selectFirst() {
        optionButtons[0].setValue(true);
    }

    public Option<Integer> getChoiceIndex() {
        for (int i = 0; i < choices.size(); i++)
            if (optionButtons[i].getValue())
                return Option.some(i);
        return Option.none();
    }

    public void clearWarning() {
        warningDiv.clear();
    }

    public void showWarning() {
        warningDiv.clear();
        warningDiv.add(new Label("Please answer this question before continuing"));
        contents.getElement().scrollIntoView();
    }

    public RadioButtonQuestion(SafeHtml promptText, PVector<String> choices, String groupId,
            Option<String> otherOptionName) {
        this.choices = choices;
        this.otherOptionName = otherOptionName;

        UnorderedList<Widget> choiceList = new UnorderedList<Widget>();
        choiceList.getElement().setId("intake24-radio-button-choices");

        optionButtons = new RadioButton[choices.size()];

        for (int i = 0; i < choices.size(); i++) {
            optionButtons[i] = new RadioButton(groupId, SafeHtmlUtils.fromString(choices.get(i)));
            choiceList.addItem(optionButtons[i]);
        }

        radioButtons = choiceList;

        if (!otherOptionName.isEmpty()) {
            FlowPanel otherPanel = new FlowPanel();
            otherOption = new RadioButton(groupId, otherOptionName.getOrDie() + ": ");
            otherPanel.add(otherOption);
            otherBox = new TextBox();
            otherPanel.add(otherBox);
            choiceList.addItem(otherPanel);

            otherBox.addFocusHandler(new FocusHandler() {
                @Override
                public void onFocus(FocusEvent event) {
                    otherOption.setValue(true);
                }
            });
        }

        contents = new FlowPanel();
        contents.addStyleName("intake24-radio-button-question");

        promptPanel = WidgetFactory.createPromptPanel(promptText);
        promptPanel.getElement().setId("intake24-radio-button-question");
        contents.add(promptPanel);

        warningDiv = new FlowPanel();
        warningDiv.addStyleName("intake24-radio-button-question-warning");

        contents.add(warningDiv);
        contents.add(choiceList);

        initWidget(contents);
    }
}