/**
 * Copyright (C) 2009 eXo Platform SAS.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.exoplatform.webui.form;

import java.io.Writer;

import org.apache.commons.lang.StringUtils;
import org.exoplatform.commons.serialization.api.annotations.Serialized;
import org.exoplatform.commons.utils.HTMLEntityEncoder;
import org.exoplatform.webui.application.WebuiRequestContext;

/**
 * Created by The eXo Platform SARL Author : Tuan Nguyen tuan08@users.sourceforge.net Jun 6, 2006
 *
 * Represents a input string field The value is stored in UIFormInputBase
 */
@Serialized
public class UIFormStringInput extends UIFormInputBase<String> {
    /**
     * type : text
     */
    public static final short TEXT_TYPE = 0;

    /**
     * type : password
     */
    public static final short PASSWORD_TYPE = 1;

    /**
     * type of the text field
     */
    private short type_ = TEXT_TYPE;

    /**
     * max size of text field
     */
    private int maxLength = 0;

    /**
     * placeholder of the text field
     */
    private String placeholder = "";

    public UIFormStringInput() {
    }

    public UIFormStringInput(String name, String bindingExpression, String value, String placeholder) {
        super(name, bindingExpression, String.class);
        this.value_ = value;
        this.placeholder = placeholder;
    }

    public UIFormStringInput(String name, String bindingExpression, String value) {
        super(name, bindingExpression, String.class);
        this.value_ = value;
    }

    public UIFormStringInput(String name, String value) {
        this(name, null, value);
    }

    public UIFormStringInput setType(short type) {
        type_ = type;
        return this;
    }

    public UIFormStringInput setMaxLength(int maxLength) {
        this.maxLength = maxLength;
        return this;
    }

    public int getMaxLength() {
        return maxLength;
    }

    public String getPlaceholder() {
        return placeholder;
    }

    public UIFormStringInput setPlaceholder(String placeholder) {
        this.placeholder = placeholder;
        return this;
    }

    public void decode(Object input, WebuiRequestContext context) {
        String val = (String) input;
        if ((val == null || val.length() == 0) && type_ == PASSWORD_TYPE)
            return;
        value_ = val;
        if (value_ != null && value_.length() == 0)
            value_ = null;
    }

    public void processRender(WebuiRequestContext context) throws Exception {
        String value = getValue();
        Writer w = context.getWriter();
        w.write("<input name=\"");
        w.write(getName());
        w.write("\"");
        if (type_ == PASSWORD_TYPE)
            w.write(" type=\"password\"");
        else
            w.write(" type=\"text\"");
        if(StringUtils.isNotEmpty(getPlaceholder())) {
            w.write(" placeholder=\"");
            w.write(getPlaceholder());
            w.write("\"");
        }
        w.write(" id=\"");
        w.write(getId());
        w.write("\"");
        if (value != null && value.length() > 0) {
            value = HTMLEntityEncoder.getInstance().encodeHTMLAttribute(value);
            w.write(" value=\"");
            w.write(value);
            w.write("\"");
        }
        if (maxLength > 0)
            w.write(" maxlength=\"" + maxLength + "\"");
        if (readonly_)
            w.write(" readonly ");
        if (isDisabled())
            w.write(" disabled ");

        renderHTMLAttributes(w);

        w.write("/>");
        if (this.isMandatory())
            w.write(" *");
    }
}
