path: root/examples/bundles/org.eclipse.ecf.example.collab/src/org/eclipse/ecf/internal/example/collab/ui/LineChatClientView.java

/*******************************************************************************
 * Copyright (c) 2004, 2007 Composent, Inc. 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:
 *    Composent, Inc. - initial API and implementation
 ******************************************************************************/

package org.eclipse.ecf.internal.example.collab.ui;

import java.io.File;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import org.eclipse.ecf.core.identity.ID;
import org.eclipse.ecf.core.user.IUser;
import org.eclipse.ecf.example.collab.share.EclipseCollabSharedObject;
import org.eclipse.ecf.example.collab.share.HelloMessageSharedObject;
import org.eclipse.ecf.example.collab.share.url.ShowURLSharedObject;
import org.eclipse.ecf.example.collab.share.url.StartProgramSharedObject;
import org.eclipse.ecf.internal.example.collab.ClientPlugin;
import org.eclipse.ecf.internal.example.collab.Messages;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.window.ToolTip;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;
import org.eclipse.swt.widgets.Widget;
import org.eclipse.ui.part.ViewPart;

public class LineChatClientView implements FileSenderUI {
	public static final String DEFAULT_UNIX_BROWSER = "mozilla"; //$NON-NLS-1$
	public static final String ENTER_STRING = "ARRIVED"; //$NON-NLS-1$
	public static final String EXECPROGARGTYPES[] = {ID.class.getName(), "[Ljava.lang.String;", "[Ljava.lang.String;", Boolean.class.getName(), Boolean.class.getName()}; //$NON-NLS-1$ //$NON-NLS-2$
	public static final String EXECPROGCLASSNAME = StartProgramSharedObject.class.getName();
	public static final String LEFT_STRING = "LEFT"; //$NON-NLS-1$
	public static final String MESSAGECLASSNAME = HelloMessageSharedObject.class.getName();
	public static final String REMOTEFILEPATH = null;
	public static final String SHOWURLARGTYPES[] = {ID.class.getName(), "java.lang.String"}; //$NON-NLS-1$
	public static final String SHOWURLCLASSNAME = ShowURLSharedObject.class.getName();

	private boolean showTimestamp = ClientPlugin.getDefault().getPreferenceStore().getBoolean(ClientPlugin.PREF_DISPLAY_TIMESTAMP);
	private final SimpleDateFormat df = new SimpleDateFormat("MM/dd hh:mm a"); //$NON-NLS-1$
	String downloaddir;
	EclipseCollabSharedObject lch;
	Hashtable myNames = new Hashtable();
	String name;
	private final TeamChat teamChat;
	IUser userdata;
	LineChatView view;

	private final List users;

	public LineChatClientView(EclipseCollabSharedObject lch, LineChatView view, String name, String initText, String downloaddir) {
		super();
		this.lch = lch;
		this.view = view;
		this.name = name;
		this.teamChat = new TeamChat(this, view.tabFolder, SWT.NULL, initText);
		this.userdata = lch.getUser();
		this.downloaddir = downloaddir;
		users = new ArrayList();
		teamChat.getTableViewer().setInput(users);
		if (userdata != null)
			addUser(userdata);

		ClientPlugin.getDefault().getPreferenceStore().addPropertyChangeListener(new IPropertyChangeListener() {

			public void propertyChange(PropertyChangeEvent event) {
				if (event.getProperty().equals(ClientPlugin.PREF_DISPLAY_TIMESTAMP)) {
					showTimestamp = ((Boolean) event.getNewValue()).booleanValue();
				}
			}

		});

		JFaceResources.getColorRegistry().put(ViewerToolTip.HEADER_BG_COLOR, new RGB(255, 255, 255));
		JFaceResources.getFontRegistry().put(ViewerToolTip.HEADER_FONT, JFaceResources.getFontRegistry().getBold(JFaceResources.getDefaultFont().getFontData()[0].getName()).getFontData());

		final ToolTip toolTip = new ViewerToolTip(teamChat.getTableViewer().getControl());
		toolTip.setHideOnMouseDown(false);
		toolTip.setPopupDelay(200);
	}

	public ViewPart getView() {
		return view;
	}

	public Control getTextControl() {
		return teamChat.getTextControl();
	}

	public Control getTreeControl() {
		return teamChat.getTreeControl();
	}

	public boolean addUser(IUser ud) {
		if (ud == null)
			return false;
		final ID userID = ud.getID();
		final String username = ud.getNickname();
		if (myNames.containsKey(userID)) {
			final String existingName = (String) myNames.get(userID);
			if (!existingName.equals(username)) {
				myNames.put(userID, username);
				showLine(new ChatLine(NLS.bind(Messages.LineChatClientView_CHANGED_NAME_TO, existingName, username)));
			}
			return false;
		} else {
			myNames.put(userID, username);
			addUserToTree(ud);
			showLine(new ChatLine(username + " " + ENTER_STRING)); //$NON-NLS-1$
			return true;
		}
	}

	protected void addUserToTree(final IUser user) {
		Display.getDefault().asyncExec(new Runnable() {
			public void run() {
				users.add(user);
				if (!teamChat.isDisposed())
					teamChat.getTableViewer().add(user);
			}
		});
	}

	protected void appendAndScrollToBottom(final ChatLine str) {
		Display.getDefault().asyncExec(new Runnable() {
			public void run() {
				if (!teamChat.isDisposed())
					teamChat.appendText(str);
			}
		});
	}

	public boolean changeUser(IUser user) {
		return changeUserInTree(user);
	}

	protected boolean changeUserInTree(final IUser userdata) {
		for (int i = 0; i < users.size(); i++) {
			final IUser user = (IUser) users.get(i);
			if (user.getID().equals(userdata.getID())) {
				Display.getDefault().asyncExec(new Runnable() {
					public void run() {
						if (!teamChat.isDisposed()) {
							final TableViewer view = teamChat.getTableViewer();
							view.remove(user);
							users.remove(user);
							view.add(userdata);
							users.add(userdata);
						}
					}
				});
				return true;
			}
		}
		return false;
	}

	protected void closeClient() {
		if (lch != null) {
			lch.chatGUIDestroy();
		}
	}

	protected String getCurrentDateTime() {
		final StringBuffer sb = new StringBuffer("["); //$NON-NLS-1$
		sb.append(df.format(new Date())).append(']');
		return sb.toString();
	}

	public void disposeClient() {
		myNames.clear();
		users.clear();
		Display.getDefault().syncExec(new Runnable() {
			public void run() {
				if (!teamChat.isDisposed() && teamChat.chatWindow != null)
					teamChat.chatWindow.close();
			}
		});

		view.disposeClient(this);
	}

	protected TeamChat getTeamChat() {
		return teamChat;
	}

	protected String getUserData(ID id) {
		return (String) myNames.get(id);
	}

	public IUser getUser(ID id) {
		if (id == null) {
			return null;
		} else {
			for (int i = 0; i < users.size(); i++) {
				final IUser user = (IUser) users.get(i);
				if (id.equals(user.getID())) {
					return user;
				}
			}
			return null;
		}
	}

	protected void handleTextInput(String text) {
		final ChatLine line = new ChatLine(text, getCurrentDateTime());

		if (lch != null) {
			line.setOriginator(userdata);
		}
		appendAndScrollToBottom(line);
		teamChat.clearInput();

		if (lch != null)
			lch.inputText(text);
	}

	protected void createObject(ID target, String className, String[] args) {
		createObject(target, className, null, args);
	}

	protected void createObject(ID target, final String className, String[] argTypes, Object[] args) {
		if (lch != null) {
			final HashMap map = new HashMap();
			map.put("args", args); //$NON-NLS-1$
			map.put("types", argTypes); //$NON-NLS-1$
			try {
				lch.createObject(target, className, map);
			} catch (final Exception e) {
				Display.getDefault().asyncExec(new Runnable() {
					public void run() {
						MessageDialog.openInformation(null, Messages.LineChatClientView_EXCEPTION_MSGBOX_TITLE, NLS.bind(Messages.LineChatClientView_EXCEPTION_MSGBOX_TEXT, className, e.getLocalizedMessage()));
					}
				});
				e.printStackTrace();
				lch.chatException(e, "createObject(" + className + ")"); //$NON-NLS-1$ //$NON-NLS-2$
			}
		}
	}

	protected void refreshTreeView() {
		Display.getDefault().asyncExec(new Runnable() {
			public void run() {
				if (!teamChat.isDisposed())
					teamChat.getTableViewer().refresh();
			}
		});
	}

	public void removeUser(ID id) {
		final String name = getUserData(id);
		if (name != null) {
			showLine(new ChatLine(name + " " + LEFT_STRING)); //$NON-NLS-1$
		}
		myNames.remove(id);
		removeUserFromTree(id);
	}

	protected void removeUserFromTree(ID id) {
		if (id == null) {
			return;
		} else {
			for (int i = 0; i < users.size(); i++) {
				final IUser user = (IUser) users.get(i);
				if (user.getID().equals(id)) {
					Display.getDefault().asyncExec(new Runnable() {
						public void run() {
							if (!teamChat.isDisposed())
								teamChat.getTableViewer().remove(user);
						}
					});
					users.remove(i);
					break;
				}
			}
		}
	}

	protected void runProgram(ID receiver, String program, String[] env) {
		final String[] cmds = {program};
		final Object[] args = {receiver, cmds, env, Boolean.valueOf(receiver == null), Boolean.FALSE};
		// Do it
		createObject(null, EXECPROGCLASSNAME, EXECPROGARGTYPES, args);
	}

	public void sendData(File aFile, long dataLength) {
	}

	public void sendDone(File aFile, Exception e) {
		if (e != null) {
			showLine(new ChatLine(NLS.bind(Messages.LineChatClientView_EXCEPTION_SENDING_FILE, e.getLocalizedMessage(), aFile.getName())));
		} else {
			showLine(new ChatLine(NLS.bind(Messages.LineChatClientView_SEND_COMPLETED, aFile.getName())));
			if (lch != null)
				lch.refreshProject();
		}
	}

	public void sendStart(File aFile, long length, float rate) {
		// present user with notification that file is being transferred
		showLine(new ChatLine(NLS.bind(Messages.LineChatClientView_SENDING_FILE, aFile.getName())));
	}

	public void setTitle(String title) {
		// NOTHING HAPPENS
	}

	public void showLine(ChatLine line) {
		if (showTimestamp) {
			line.setDate(getCurrentDateTime());
		}
		appendAndScrollToBottom(line);
	}

	public void startedTyping(final IUser user) {
		Display.getDefault().asyncExec(new Runnable() {
			public void run() {
				if (!teamChat.isDisposed())
					teamChat.setStatus(NLS.bind(Messages.LineChatClientView_TYPING, user.getNickname()));
			}
		});
	}

	public void toFront() {
		view.setActiveTab(name);
	}

	private class ViewerToolTip extends ToolTip {

		public static final String HEADER_BG_COLOR = ClientPlugin.PLUGIN_ID + ".TOOLTIP_HEAD_BG_COLOR"; //$NON-NLS-1$

		public static final String HEADER_FONT = ClientPlugin.PLUGIN_ID + ".TOOLTIP_HEAD_FONT"; //$NON-NLS-1$

		public ViewerToolTip(Control control) {
			super(control);
		}

		protected Composite createToolTipContentArea(Event event, Composite parent) {
			final Widget item = teamChat.getTableViewer().getTable().getItem(new Point(event.x, event.y));
			final IUser user = (IUser) item.getData();

			GridLayout gl = new GridLayout();
			gl.marginBottom = 0;
			gl.marginTop = 0;
			gl.marginHeight = 0;
			gl.marginWidth = 0;
			gl.marginLeft = 0;
			gl.marginRight = 0;
			gl.verticalSpacing = 1;
			parent.setLayout(gl);

			final Composite topArea = new Composite(parent, SWT.NONE);
			final GridData data = new GridData(SWT.FILL, SWT.BEGINNING, true, false);
			data.widthHint = 200;
			topArea.setLayoutData(data);
			topArea.setBackground(JFaceResources.getColorRegistry().get(HEADER_BG_COLOR));

			gl = new GridLayout();
			gl.marginBottom = 2;
			gl.marginTop = 2;
			gl.marginHeight = 0;
			gl.marginWidth = 0;
			gl.marginLeft = 5;
			gl.marginRight = 2;

			topArea.setLayout(gl);

			final Label l = new Label(topArea, SWT.NONE);
			l.setText(user.getNickname());
			l.setBackground(JFaceResources.getColorRegistry().get(HEADER_BG_COLOR));
			l.setFont(JFaceResources.getFontRegistry().get(HEADER_FONT));
			l.setLayoutData(data);

			createContentArea(parent, user.getProperties()).setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

			return parent;
		}

		protected Control createContentArea(Composite parent, Map properties) {
			final Text label = new Text(parent, SWT.READ_ONLY | SWT.MULTI);
			label.setBackground(parent.getDisplay().getSystemColor(SWT.COLOR_INFO_BACKGROUND));
			final StringBuffer buffer = new StringBuffer();
			synchronized (buffer) {
				for (Iterator it = properties.entrySet().iterator(); it.hasNext();) {
					Entry entry = (Entry) it.next();
					buffer.append(entry.getKey()).append(": ").append(entry.getValue()); //$NON-NLS-1$
					buffer.append(Text.DELIMITER);
				}
			}
			label.setText(buffer.toString().trim());
			label.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));
			return label;
		}

		protected boolean shouldCreateToolTip(Event e) {
			if (super.shouldCreateToolTip(e)) {
				final Widget item = teamChat.getTableViewer().getTable().getItem(new Point(e.x, e.y));
				if (item != null) {
					final IUser user = (IUser) item.getData();
					final Map properties = user.getProperties();
					return properties != null && !properties.isEmpty();
				} else {
					return false;
				}
			} else {
				return false;
			}
		}
	}
}