textboxprimitive.java

考勤管理系统源码

package com.wiley.compBooks.EJwithUML.Base.HtmlPrimitives.FormPrimitives;

import com.wiley.compBooks.EJwithUML.Base.HtmlPrimitives.Core.*;

/**
 * The TextBoxPrimitive class encapsulates the details of
 * building the HTML for a text entry box.
 */
public class TextBoxPrimitive implements IHtmlPrimitive
{
  private String name;
  private String type = "text";
  private String initialValue;
  private int maximumLength = -1;
  private int width = -1;
  private boolean readOnly = false;
  private Style style;

  /** Construct a TextBoxPrimitive with the specified name
   *  for the form element.*/
  public TextBoxPrimitive(String name)
  {
    this.name = name;
  }

  /** Set the initial value that is displayed when this
   *  TextBoxPrimitive is rendered. */
  public void setInitialValue(String initialValue)
  {
    this.initialValue = initialValue;
  }

  /** Set the maximum number of characters to accept. */
  public void setMaximumLength(int maximumLength)
  {
    this.maximumLength = maximumLength;
  }

  /** Set the width of the text box in characters */
  public void setWidth(int width)
  {
    this.width = width;
  }

  /** Set the text box to read only. */
  public void setReadOnly()
  {
    this.readOnly = true;
  }

  /** Hide the text box so that it is not rendered by the browser. */
  public void setHidden()
  {
    this.type = "hidden";
  }

  /** Mask the input to the browser to protect it from prying eyes. */
  public void setMasked()
  {
    this.type = "password";
  }

  /** Specify the style class that is applied to the text box. */
  public void setStyle(Style style)
  {
    this.style = style;
  }

  /** Build the content for this primitive and append it to the
   *  specified buffer.*/
  public void buildContent(StringBuffer buffer)
  {
    String type_string = Formatting.convertToAttribute("type", type);
    String name_string = Formatting.convertToAttribute("name", name);
    String value_string = Formatting.convertToAttribute("value", initialValue);
    String maxlength_string = Formatting.convertToAttribute("maxlength", maximumLength);
    String size_string = Formatting.convertToAttribute("size", width);
    String read_only_string = Formatting.convertToAttribute("readonly", readOnly);
    String style_string = Formatting.convertToAttribute("class", style);

    buffer.append("<input" +type_string+name_string+value_string+
               maxlength_string+size_string+read_only_string+style_string+ ">");
    buffer.append("</input>");
  }
}