CheckBoxElement.java

package dk.silverbullet.telemed.questionnaire.element;

import android.content.Context;
import android.os.Build;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.CheckBox;
import com.google.gson.annotations.Expose;
import dk.silverbullet.telemed.questionnaire.R;
import dk.silverbullet.telemed.questionnaire.expression.Variable;
import dk.silverbullet.telemed.questionnaire.expression.VariableLinkFailedException;
import dk.silverbullet.telemed.questionnaire.node.IONode;
import dk.silverbullet.telemed.questionnaire.node.Node;
import dk.silverbullet.telemed.utils.Util;

import java.util.Map;

import static dk.silverbullet.telemed.utils.Util.linkVariable;

public class CheckBoxElement extends Element {

    @SuppressWarnings("unused")
    private static final String TAG = Util.getTag(CheckBoxElement.class);

    @Expose
    private Variable<Boolean> outputVariable;

    @Expose
    private String text;

    private CheckBox checkBox;

    public CheckBoxElement(final IONode node) {
        super(node);
    }

    @Override
    public View getView() {
        if (null == checkBox) {
            Context context = getQuestionnaire().getContext();
            LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            checkBox = (CheckBox) inflater.inflate(R.layout.checkbox, null);

            setPadding();
            checkBox.setText(text);
        }

        checkBox.setChecked(outputVariable != null && outputVariable.getExpressionValue().getValue());
        return checkBox;
    }

    private void setPadding() {
        // Samsung forced us... Sorry!
        if (Build.MODEL.equals("GT-P5110")) {
            checkBox.setPadding(checkBox.getPaddingLeft() + 40, checkBox.getPaddingTop(), checkBox.getPaddingRight(), checkBox.getPaddingBottom());
        }
    }

    @Override
    public void leave() {
        if (null != checkBox && checkBox.isChecked())
            outputVariable.setValue(true);
        else
            outputVariable.setValue(false);

        InputMethodManager imm = (InputMethodManager) getQuestionnaire().getContext().getApplicationContext()
                .getSystemService(Context.INPUT_METHOD_SERVICE);
        imm.hideSoftInputFromWindow(checkBox.getWindowToken(), 0);
    }

    @Override
    public void linkNodes(Map<String, Node> map) {
        // Done
    }

    @Override
    public void linkVariables(Map<String, Variable<?>> variablePool) throws VariableLinkFailedException {
        outputVariable = linkVariable(variablePool, outputVariable);
    }

    @Override
    public boolean validates() {
        return true;
    }

    public void setText(String text) {
        this.text = text;
    }

    public void setOutputVariable(Variable<Boolean> outputVariable) {
        this.outputVariable = outputVariable;
    }
}