package pt.ist.renderers.components;

import javax.servlet.jsp.PageContext;

import pt.ist.renderers.components.tags.HtmlTag;

public class HtmlActionLink extends HtmlSimpleValueComponent {
    private String text;

    private HtmlComponent body;

    private boolean activated;

    private String hiddenFieldId;

    public HtmlActionLink() {
	super();
	this.hiddenFieldId = getValidIdOrName("____" + getName());

	setActivated(false);
    }

    public HtmlActionLink(HtmlComponent body) {
	super();
	this.hiddenFieldId = getValidIdOrName("____" + getName());
	setBody(body);
    }

    public HtmlActionLink(String text) {
	this(new HtmlText(text));
    }

    public HtmlComponent getBody() {
	return this.body;
    }

    public void setBody(HtmlComponent body) {
	this.body = body;
    }

    public String getText() {
	return this.text;
    }

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

    public boolean isActivated() {
	return this.activated;
    }

    public void setActivated(boolean activated) {
	this.activated = activated;
    }

    @Override
    public void setValue(String value) {
	setActivated(value != null && value.equals(getName()));
    }

    public String getHiddenFieldId() {
	return hiddenFieldId;
    }

    @Override
    public HtmlTag getOwnTag(PageContext context) {

	HtmlHiddenField hidden = new HtmlHiddenField(getName(), null);
	hidden.setId(this.hiddenFieldId);

	HtmlLink link = new HtmlLink();

	link.setText(getText());
	link.setBody(getBody());
	link.setUrl("#");
	link.setModuleRelative(false);
	link.setContextRelative(false);

	String existingScript = getOnClick();
	if (existingScript == null) {
	    existingScript = "";
	}

	setOnClick(existingScript + "document.getElementById('" + hidden.getId() + "').value='" + getName() + "'; "
		+ "document.getElementById('" + hidden.getId() + "').form.submit();");

	HtmlTag tag = super.getOwnTag(context);

	tag.setName(null);

	tag.addChild(hidden.getOwnTag(context));

	HtmlTag linkTag = link.getOwnTag(context);
	linkTag.copyAttributes(tag);
	tag.addChild(linkTag);

	return tag;
    }
}