/*******************************************************************************
 * Copyright (c) 2003, 2008 IBM Corporation and Others
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Masahide WASHIZAWA - initial API and implementation
 *******************************************************************************/
package org.eclipse.actf.visualization.engines.voicebrowser.internal;

import org.eclipse.actf.visualization.engines.voicebrowser.Context;
import org.eclipse.actf.visualization.engines.voicebrowser.JWATController;
import org.eclipse.actf.visualization.engines.voicebrowser.Packet;
import org.eclipse.actf.visualization.engines.voicebrowser.PacketCollection;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;

public class StaticINPUTRenderer implements IElementRenderer {

	/**
	 * @see org.eclipse.actf.visualization.engines.voicebrowser.internal.IElementRenderer#getPacketCollectionIn(Element, Context)
	 */
	public PacketCollection getPacketCollectionIn(
		Element element,
		Context curContext,
		String url,
		MessageCollection mc) {
		try {
			setContextIn(element, curContext);
			NamedNodeMap attrs = element.getAttributes();

			String type = null, result = null;
			Node typeNode = attrs.getNamedItem("type");
			if (typeNode != null) {
				type = typeNode.getNodeValue();
				if (type.length() > 0) {
					if (type.equals("image")) {
						result = inputTypeImage(element, attrs, mc, url);
					} else if (type.equals("text")) {
						result = inputTypeText(element, attrs, mc, url);
					} else if (type.equals("submit")) {
						result = inputTypeSubmit(element, attrs, mc, url);
					} else if (type.equals("reset")) {
						result = inputTypeReset(element, attrs, mc, url);
					} else if (type.equals("button")) {
						result = inputTypeButton(element, attrs, mc, url);
					} else if (type.equals("password")) {
						result = inputTypePassword(element, attrs, mc, url);
					} else if (type.equals("checkbox")) {
						result = inputTypeCheckbox(element, attrs, mc, url);
					} else if (type.equals("radio")) {
						result = inputTypeRadio(element, attrs, mc, url);
					} else if (type.equals("file")) {
						result = inputTypeFile(element, attrs, mc, url);
					} else if (type.equals("hidden")) {
						result = inputTypeHidden(element, attrs, mc, url);
					}
				}
			} else {
				result = inputTypeText(element, attrs, mc, url);
			}
			if (OutLoud.jwat_mode == JWATController.JAWS_MODE) {
				curContext.setLineDelimiter(true);
				curContext.setStartSelect(true);
			}
			if (result != null) {
				result = result.trim();
				return new PacketCollection(
					new Packet(element, result, curContext, true));
			} else {
				return null;
			}
		} catch (NullPointerException npe) {
			return null;
		}
	}

	/**
	 * Method inputTypeImage.
	 * @param nodeName
	 * @param attrs
	 * @param mc
	 * @return String
	 */
	private String inputTypeImage(
		Element element,
		NamedNodeMap attrs,
		MessageCollection mc,
		String url) {
		String result = null;
		String value = null;
		Node valueNode = attrs.getNamedItem("alt");
		if (valueNode != null) {
			value = valueNode.getNodeValue();
			if (value != null && value.length() > 0) {
				result =
					OutLoud.buildResultString(
						mc,
						url,
						element,
						"image",
						"hasstr",
						"name=str1",
						value);
				if (result == null)
					result = "[" + value + ": Image button.]";
			}
		}
		if (value == null) {
			valueNode = attrs.getNamedItem("src");
			if (valueNode != null) {
				value = valueNode.getNodeValue();
				int scount = 0;
				for (int j = 0; j < value.length(); j++)
					if (value.charAt(j) == '/')
						scount++;
				if (scount >= 2) {
					for (int j = 0, cnt = 0; j < value.length(); j++) {
						if (value.charAt(j) == '/') {
							cnt++;
							if (cnt == scount - 1)
								value = value.substring(j + 1, value.length());
						}
					}
				}
			}
			if (value != null && value.length() > 0) {
				result =
					OutLoud.buildResultString(
						mc,
						url,
						element,
						"image",
						"hasstr",
						"name=str",
						value);
				if (result == null)
					result = "[" + value + ": Image button.]";
			} else {
				result =
					OutLoud.buildResultString(
						mc,
						url,
						element,
						"image",
						"nostr");
				if (result == null)
					result = "[Image button.]";
			}
		}
		return result;
	}

	/**
	 * Method inputTypeText.
	 * @param nodeName
	 * @param attrs
	 * @param mc
	 * @return String
	 */
	private String inputTypeText(
		Element element,
		NamedNodeMap attrs,
		MessageCollection mc,
		String url) {
		String result =
			OutLoud.buildResultString(mc, url, element, "text", null);
		if (result == null)
			result = "[Text.]";
		return result;
	}

	/**
	 * Method inputTypeSubmit.
	 * @param nodeName
	 * @param attrs
	 * @param mc
	 * @return String
	 */
	private String inputTypeSubmit(
		Element element,
		NamedNodeMap attrs,
		MessageCollection mc,
		String url) {
		String result = null;
		String value = null;
		Node valueNode = attrs.getNamedItem("VALUE");
		if (valueNode != null)
			value = valueNode.getNodeValue();
		if (value != null && value.length() > 0) {
			result =
				OutLoud.buildResultString(
					mc,
					url,
					element,
					"submit",
					"hasstr",
					"name=str1",
					value);
			if (result == null)
				result = "[" + value + ": Submit button.]";
		} else {
			result =
				OutLoud.buildResultString(mc, url, element, "submit", "nostr");
			if (result == null)
				result = "[Submit button.]";
		}
		return result;
	}

	/**
	 * Method inputTypeReset.
	 * @param nodeName
	 * @param attrs
	 * @param mc
	 * @return String
	 */
	private String inputTypeReset(
		Element element,
		NamedNodeMap attrs,
		MessageCollection mc,
		String url) {
		String result = null;
		String value = null;
		Node valueNode = attrs.getNamedItem("VALUE");
		if (valueNode != null)
			value = valueNode.getNodeValue();
		if (value != null && value.length() > 0) {
			result =
				OutLoud.buildResultString(
					mc,
					url,
					element,
					"reset",
					"hasstr",
					"name=str1",
					value);
			if (result == null)
				result = "[" + value + ": Reset button.]";
		} else {
			result =
				OutLoud.buildResultString(mc, url, element, "reset", "nostr");
			if (result == null)
				result = "[Reset button.]";
		}
		return result;
	}

	/**
	 * Method inputTypeButton.
	 * @param nodeName
	 * @param attrs
	 * @param mc
	 * @return String
	 */
	private String inputTypeButton(
		Element element,
		NamedNodeMap attrs,
		MessageCollection mc,
		String url) {
		String result = null;
		String value = null;
		Node valueNode = attrs.getNamedItem("VALUE");
		if (valueNode != null)
			value = valueNode.getNodeValue();
		if (value != null && value.length() > 0) {
			result =
				OutLoud.buildResultString(
					mc,
					url,
					element,
					"button",
					"hasstr",
					"name=str1",
					value);
			if (result == null)
				result = "[" + value + ": Button.]";
		} else {
			result =
				OutLoud.buildResultString(mc, url, element, "button", "nostr");
			if (result == null)
				result = "[Button.]";
		}
		return result;
	}

	/**
	 * Method inputTypePassword.
	 * @param nodeName
	 * @param attrs
	 * @param mc
	 * @return String
	 */
	private String inputTypePassword(
		Element element,
		NamedNodeMap attrs,
		MessageCollection mc,
		String url) {
		String result =
			OutLoud.buildResultString(mc, url, element, "password", null);
		if (result == null)
			result = "[Password.]";
		return result;
	}

	/**
	 * Method inputTypeCheckbox.
	 * @param nodeName
	 * @param attrs
	 * @param mc
	 * @return String
	 */
	private String inputTypeCheckbox(
		Element element,
		NamedNodeMap attrs,
		MessageCollection mc,
		String url) {
		String result = null;
		Node cnode = attrs.getNamedItem("checked");
		if (cnode == null) {
			result =
				OutLoud.buildResultString(mc, url, element, "checkbox", "off");
			if (result == null)
				result = "[Not Checked.]";
		} else {
			result =
				OutLoud.buildResultString(mc, url, element, "checkbox", "on");
			if (result == null)
				result = "[Checked.]";
		}
		return result;
	}

	/**
	 * Method inputTypeRadio.
	 * @param nodeName
	 * @param attrs
	 * @param mc
	 * @return String
	 */
	private String inputTypeRadio(
		Element element,
		NamedNodeMap attrs,
		MessageCollection mc,
		String url) {
		String result = null;
		Node cnode = attrs.getNamedItem("checked");
		if (cnode == null) {
			result =
				OutLoud.buildResultString(mc, url, element, "radio", "off");
			if (result == null)
				result = "[Not Pressed.]";
		} else {
			result = OutLoud.buildResultString(mc, url, element, "radio", "on");
			if (result == null)
				result = "[Pressed.]";
		}
		return result;
	}

	/**
	 * Method inputTypeFile.
	 * @param nodeName
	 * @param attrs
	 * @param mc
	 * @return String
	 */
	private String inputTypeFile(
		Element element,
		NamedNodeMap attrs,
		MessageCollection mc,
		String url) {
		String result =
			OutLoud.buildResultString(mc, url, element, "file", null);
		if (result == null)
			result = "[Browse button.]";
		return result;
	}

	/**
	 * Method inputTypeHidden.
	 * @param nodeName
	 * @param attrs
	 * @param mc
	 * @return String
	 */
	private String inputTypeHidden(
		Element element,
		NamedNodeMap attrs,
		MessageCollection mc,
		String url) {
		return null;
	}

	/**
	 * @see org.eclipse.actf.visualization.engines.voicebrowser.internal.IElementRenderer#getPacketCollectionOut(Element, Context)
	 */
	public PacketCollection getPacketCollectionOut(
		Element element,
		Context curContext,
		String url,
		MessageCollection mc) {
		setContextOut(element, curContext);
		return null;
	}

	/**
	 * @see org.eclipse.actf.visualization.engines.voicebrowser.internal.IElementRenderer#setContextIn(Context)
	 */
	public void setContextIn(Element element, Context curContext) {
		curContext.setGoChild(true);
		try {
			NamedNodeMap attrs = element.getAttributes();

			String type = null;
			Node typeNode = attrs.getNamedItem("type");
			if (typeNode != null) {
				type = typeNode.getNodeValue();
				if (type.length() > 0) {
					if (type.equals("submit") || type.equals("reset")) {
						curContext.setLineDelimiter(true);
					} else {
						curContext.setLineDelimiter(false);
					}
				} else {
					curContext.setLineDelimiter(false);
				}
			} else {
				curContext.setLineDelimiter(false);
			}
		} catch (NullPointerException npe) {
			npe.printStackTrace();
		}
		curContext.setLinkTag(true);
	}

	/**
	 * @see org.eclipse.actf.visualization.engines.voicebrowser.internal.IElementRenderer#setContextOut(Context)
	 */
	public void setContextOut(Element element, Context curContext) {
		curContext.setGoChild(true);
		curContext.setLineDelimiter(true);
		curContext.setLinkTag(false);
	}
}