/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

package com.nokia.carbide.cpp.debug.crashdebugger.ui;

import java.math.BigInteger;

import org.eclipse.jface.action.Action;

import org.eclipse.jface.action.GroupMarker;

import org.eclipse.jface.action.IMenuListener;

import org.eclipse.jface.action.IMenuManager;

import org.eclipse.jface.action.IToolBarManager;

import org.eclipse.jface.action.MenuManager;

import org.eclipse.jface.action.Separator;

import org.eclipse.jface.text.BadLocationException;

import org.eclipse.jface.text.IDocument;

import org.eclipse.jface.text.ITextListener;

import org.eclipse.jface.text.ITextOperationTarget;

import org.eclipse.jface.text.TextEvent;

import org.eclipse.jface.text.TextSelection;

import org.eclipse.jface.viewers.ISelection;

import org.eclipse.jface.viewers.ISelectionChangedListener;

import org.eclipse.jface.viewers.SelectionChangedEvent;

import org.eclipse.jface.window.Window;

import org.eclipse.swt.custom.StyledText;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Menu;

import org.eclipse.ui.IActionBars;

import org.eclipse.ui.IMemento;

import org.eclipse.ui.ISharedImages;

import org.eclipse.ui.IViewSite;

import org.eclipse.ui.IWorkbenchActionConstants;

import org.eclipse.ui.PartInitException;

import org.eclipse.ui.PlatformUI;

import org.eclipse.ui.internal.console.IOConsoleViewer;

import org.eclipse.ui.part.ViewPart;

import com.nokia.carbide.cpp.debug.crashdebugger.CrashDebugger;

import com.nokia.carbide.cpp.debug.crashdebugger.CrashDebuggerConsole;

import com.nokia.carbide.cpp.debug.crashdebugger.HelpIds;

import com.nokia.carbide.cpp.debug.crashdebugger.ISessionChangedListener;

import com.nokia.carbide.cpp.debug.crashdebugger.Images;

import com.nokia.carbide.cpp.internal.featureTracker.FeatureUseTrackerConsts;

import com.nokia.carbide.cpp.internal.featureTracker.FeatureUseTrackerPlugin;

public class CrashDebuggerView extends ViewPart {

	// crash debugger commands

	private static final String FAULT_CMD = "f"; //$NON-NLS-1$

	private static final String HELP_CMD = "h"; //$NON-NLS-1$

	private static final String MEMORY_CMD = "m "; //$NON-NLS-1$

	private static final String MEMORY2_CMD = "z "; //$NON-NLS-1$

	private static final String OBJECT_BRIEF_CMD = "o "; //$NON-NLS-1$

	private static final String OBJECT_FULL_CMD = "q "; //$NON-NLS-1$

	private static final String INFO_CMD = "i"; //$NON-NLS-1$

	private static final String THREADS_CMD = "c 0"; //$NON-NLS-1$

	private static final String PROCESSES_CMD = "c 1"; //$NON-NLS-1$

	private static final String CHUNKS_CMD = "c 2"; //$NON-NLS-1$

	private static final String LIBRARIES_CMD = "c 3"; //$NON-NLS-1$

	private static final String SEMAPHORES_CMD = "c 4"; //$NON-NLS-1$

	private static final String MUTEXES_CMD = "c 5"; //$NON-NLS-1$

	private static final String TIMERS_CMD = "c 6"; //$NON-NLS-1$

	private static final String SERVERS_CMD = "c 7"; //$NON-NLS-1$

	private static final String SESSIONS_CMD = "c 8"; //$NON-NLS-1$

	private static final String LOGICAL_DEVICES_CMD = "c 9"; //$NON-NLS-1$

	private static final String PHYSICAL_DEVICES_CMD = "c A"; //$NON-NLS-1$

	private static final String CHANNELS_CMD = "c B"; //$NON-NLS-1$

	private static final String CHANGE_NOTIFIERS_CMD = "c C"; //$NON-NLS-1$

	private static final String UNDERTAKERS_CMD = "c D"; //$NON-NLS-1$

	private static final String MSG_QUEUES_CMD = "c E"; //$NON-NLS-1$

	private static final String PROPERTY_REFS_CMD = "c F"; //$NON-NLS-1$

	private static final String REGISTERS_CMD = "r"; //$NON-NLS-1$

	private IOConsoleViewer viewer;

	private Action terminateSession;

	private Action clearConsole;

	private Action cutAction;

	private Action copyAction;

	private Action pasteAction;

	private Action selectAllAction;

	// debug command actions

	private Action help_cmd;

	private Action fault_cmd;

	private Action memory_cmd;

	private Action memory2_cmd;

	private Action object_brief_cmd;

	private Action object_full_cmd;

	private Action info_cmd;

	private Action threads_cmd;

	private Action processes_cmd;

	private Action chunks_cmd;

	private Action libraries_cmd;

	private Action semaphores_cmd;

	private Action mutexes_cmd;

	private Action timers_cmd;

	private Action servers_cmd;

	private Action sessions_cmd;

	private Action logical_devices_cmd;

	private Action physical_devices_cmd;

	private Action channels_cmd;

	private Action change_notifiers_cmd;

	private Action undertakers_cmd;

	private Action msg_queues_cmd;

	private Action property_refs_cmd;

	private Action registers_cmd;

	// text selection listener, used to update selection dependant actions on

	// selection changes

	private ISelectionChangedListener selectionChangedListener = new ISelectionChangedListener() {

		public void selectionChanged(SelectionChangedEvent event) {

			updateSelectionDependentActions();

		}

	};

	// session state listener, used to know when the session begins and ends

	private ISessionChangedListener sessionChangedListener = new ISessionChangedListener() {

		public void sessionStarted() {

			sessionChanged(true);

		}

		public void sessionOutputReceived(String output) {

			StyledText text = viewer.getTextWidget();

			text.append(output);

			text.setCaretOffset(text.getCharCount());

		}

		public void sessionEnded() {

			sessionChanged(false);

		}

	};

	public CrashDebuggerView() {

	}

	public void createPartControl(Composite parent) {

		CrashDebugger.addSessionChangedListener(sessionChangedListener);

		CrashDebuggerConsole console = CrashDebugger.getConsole();

		viewer = new IOConsoleViewer(parent, console);

		viewer.setInput(getViewSite());

		viewer.setDocument(console.getDocument());

		viewer.addTextListener(new ITextListener() {

			public void textChanged(TextEvent event) {

				if (event.getText().compareTo("\r\n") == 0) { //$NON-NLS-1$

					enterKeyPressed();

				}

			}

		});

		makeActions();

		hookContextMenu();

		contributeToActionBars();

		viewer.getSelectionProvider().addSelectionChangedListener(

				selectionChangedListener);

		updateSelectionDependentActions();

		// see if the session is already started and update the actions

		// accordingly

		sessionChanged(null != CrashDebugger.getSession());

		PlatformUI.getWorkbench().getHelpSystem().setHelp(parent,

				HelpIds.CRASH_DEBUGGER_VIEW);

	}

	private void hookContextMenu() {

		MenuManager menuMgr = new MenuManager("#PopupMenu"); //$NON-NLS-1$

		menuMgr.setRemoveAllWhenShown(true);

		menuMgr.addMenuListener(new IMenuListener() {

			public void menuAboutToShow(IMenuManager manager) {

				CrashDebuggerView.this.fillMenu(manager);

			}

		});

		Menu menu = menuMgr.createContextMenu(viewer.getControl());

		viewer.getControl().setMenu(menu);

		getSite().registerContextMenu(menuMgr, viewer);

	}

	private void contributeToActionBars() {

		IActionBars bars = getViewSite().getActionBars();

		fillLocalToolBar(bars.getToolBarManager());

	}

	private void fillMenu(IMenuManager manager) {

		manager.add(fault_cmd);

		manager.add(info_cmd);

		manager.add(registers_cmd);

		manager.add(memory_cmd);

		manager.add(memory2_cmd);

		manager.add(object_brief_cmd);

		manager.add(object_full_cmd);

		manager.add(new GroupMarker("group")); //$NON-NLS-1$

		MenuManager showInSubMenu = new MenuManager(Messages

				.getString("CrashDebuggerView.27")); //$NON-NLS-1$

		showInSubMenu.add(threads_cmd);

		showInSubMenu.add(processes_cmd);

		showInSubMenu.add(chunks_cmd);

		showInSubMenu.add(libraries_cmd);

		showInSubMenu.add(semaphores_cmd);

		showInSubMenu.add(mutexes_cmd);

		showInSubMenu.add(timers_cmd);

		showInSubMenu.add(servers_cmd);

		showInSubMenu.add(sessions_cmd);

		showInSubMenu.add(logical_devices_cmd);

		showInSubMenu.add(physical_devices_cmd);

		showInSubMenu.add(channels_cmd);

		showInSubMenu.add(change_notifiers_cmd);

		showInSubMenu.add(undertakers_cmd);

		showInSubMenu.add(msg_queues_cmd);

		showInSubMenu.add(property_refs_cmd);

		manager.appendToGroup("group", showInSubMenu); //$NON-NLS-1$

		manager.add(help_cmd);

		manager.add(new Separator());

		manager.add(terminateSession);

		manager.add(clearConsole);

		manager.add(new Separator(IWorkbenchActionConstants.M_EDIT));

		manager.add(cutAction);

		manager.add(copyAction);

		manager.add(pasteAction);

		manager.add(selectAllAction);

		// Other plug-ins can contribute there actions here

		manager.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS));

	}

	private void fillLocalToolBar(IToolBarManager manager) {

		manager.add(terminateSession);

		manager.add(clearConsole);

	}

	private void makeActions() {

		terminateSession = new Action() {

			public void run() {

				CrashDebugger.terminateSession();

				terminateSession.setEnabled(false);

			}

		};

		terminateSession.setText(Messages.getString("CrashDebuggerView.29")); //$NON-NLS-1$

		terminateSession.setImageDescriptor(Images.DESC_TERMINATE_ENABLED);

		terminateSession

				.setDisabledImageDescriptor(Images.DESC_TERMINATE_DISABLED);

		terminateSession.setToolTipText(Messages

				.getString("CrashDebuggerView.30")); //$NON-NLS-1$

		clearConsole = new Action() {

			public void run() {

				// there is a bug in IOConsole.clearConsole where after you clear it, it will

				// no longer accept any input.  the code below is a workaround for this.

				// CrashDebugger.getConsole().clearConsole();

				// clear the document, and then add the "." prompt

				viewer.getDocument().set(""); //$NON-NLS-1$

				StyledText text = viewer.getTextWidget();

				text.append("."); //$NON-NLS-1$

				text.setCaretOffset(text.getCharCount());

			}

		};

		clearConsole.setText(Messages.getString("CrashDebuggerView.31")); //$NON-NLS-1$

		clearConsole.setImageDescriptor(Images.DESC_CLEAR_ENABLED);

		clearConsole.setDisabledImageDescriptor(Images.DESC_CLEAR_DISABLED);

		clearConsole.setToolTipText(Messages.getString("CrashDebuggerView.32")); //$NON-NLS-1$

		cutAction = new Action() {

			public void run() {

				viewer.doOperation(ITextOperationTarget.CUT);

			}

		};

		cutAction.setText(Messages.getString("CrashDebuggerView.33")); //$NON-NLS-1$

		cutAction.setImageDescriptor(PlatformUI.getWorkbench()

				.getSharedImages().getImageDescriptor(

						ISharedImages.IMG_TOOL_CUT));

		cutAction.setDisabledImageDescriptor(PlatformUI.getWorkbench()

				.getSharedImages().getImageDescriptor(

						ISharedImages.IMG_TOOL_CUT_DISABLED));

		copyAction = new Action() {

			public void run() {

				viewer.doOperation(ITextOperationTarget.COPY);

			}

		};

		copyAction.setText(Messages.getString("CrashDebuggerView.34")); //$NON-NLS-1$

		copyAction.setImageDescriptor(PlatformUI.getWorkbench()

				.getSharedImages().getImageDescriptor(

						ISharedImages.IMG_TOOL_COPY));

		copyAction.setDisabledImageDescriptor(PlatformUI.getWorkbench()

				.getSharedImages().getImageDescriptor(

						ISharedImages.IMG_TOOL_COPY_DISABLED));

		pasteAction = new Action() {

			public void run() {

				viewer.doOperation(ITextOperationTarget.PASTE);

			}

		};

		pasteAction.setText(Messages.getString("CrashDebuggerView.35")); //$NON-NLS-1$

		pasteAction.setImageDescriptor(PlatformUI.getWorkbench()

				.getSharedImages().getImageDescriptor(

						ISharedImages.IMG_TOOL_PASTE));

		pasteAction.setDisabledImageDescriptor(PlatformUI.getWorkbench()

				.getSharedImages().getImageDescriptor(

						ISharedImages.IMG_TOOL_PASTE_DISABLED));

		selectAllAction = new Action() {

			public void run() {

				viewer.doOperation(ITextOperationTarget.SELECT_ALL);

			}

		};

		selectAllAction.setText(Messages.getString("CrashDebuggerView.36")); //$NON-NLS-1$

		fault_cmd = new Action() {

			public void run() {

				sendUICommand(FAULT_CMD);

			}

		};

		fault_cmd.setText(Messages.getString("CrashDebuggerView.37")); //$NON-NLS-1$

		fault_cmd.setToolTipText(Messages.getString("CrashDebuggerView.38")); //$NON-NLS-1$

		help_cmd = new Action() {

			public void run() {

				sendUICommand(HELP_CMD);

			}

		};

		help_cmd.setText(Messages.getString("CrashDebuggerView.39")); //$NON-NLS-1$

		help_cmd.setToolTipText(Messages.getString("CrashDebuggerView.40")); //$NON-NLS-1$

		memory_cmd = new Action() {

			public void run() {

				String address = ""; //$NON-NLS-1$

				String length = ""; //$NON-NLS-1$

				ISelection selection = viewer.getSelection();

				if (selection instanceof TextSelection) {

					String text = ((TextSelection) selection).getText();

					if (text.length() > 0) {

						try {

							if (text.toLowerCase().startsWith("0x")) { //$NON-NLS-1$

								text = text.substring(2, text.length());

							}

							BigInteger integer = new BigInteger(text, 16);

							address = integer.toString(16);

							// display 256 bytes by default

							length = "100"; //$NON-NLS-1$

						} catch (NumberFormatException e) {

						}

					}

					if (address.length() == 0) {

						// show the dialog to get the address and length

						DumpMemoryDialog dlg = new DumpMemoryDialog(

								getViewSite().getShell());

						if (dlg.open() == Window.OK) {

							address = dlg.getAddress();

							length = dlg.getLength();

						}

					}

				}

				if (address.trim().length() > 0 && length.trim().length() > 0) {

					sendUICommand(MEMORY_CMD + address + "+" + length); //$NON-NLS-1$

				}

			}

		};

		memory_cmd.setText(Messages.getString("CrashDebuggerView.46")); //$NON-NLS-1$

		memory_cmd.setToolTipText(Messages.getString("CrashDebuggerView.47")); //$NON-NLS-1$

		memory2_cmd = new Action() {

			public void run() {

				String address = ""; //$NON-NLS-1$

				String length = ""; //$NON-NLS-1$

				ISelection selection = viewer.getSelection();

				if (selection instanceof TextSelection) {

					String text = ((TextSelection) selection).getText();

					if (text.length() > 0) {

						try {

							if (text.toLowerCase().startsWith("0x")) { //$NON-NLS-1$

								text = text.substring(2, text.length());

							}

							BigInteger integer = new BigInteger(text, 16);

							address = integer.toString(16);

							// display 256 bytes by default

							length = "100"; //$NON-NLS-1$

						} catch (NumberFormatException e) {

						}

					}

					if (address.length() == 0) {

						// show the dialog to get the address and length

						DumpMemoryDialog dlg = new DumpMemoryDialog(

								getViewSite().getShell());

						if (dlg.open() == Window.OK) {

							address = dlg.getAddress();

							length = dlg.getLength();

						}

					}

				}

				if (address.trim().length() > 0 && length.trim().length() > 0) {

					sendUICommand(MEMORY2_CMD + address + "+" + length); //$NON-NLS-1$

				}

			}

		};

		memory2_cmd.setText(Messages.getString("CrashDebuggerView.53")); //$NON-NLS-1$

		memory2_cmd.setToolTipText(Messages.getString("CrashDebuggerView.54")); //$NON-NLS-1$

		object_brief_cmd = new Action() {

			public void run() {

				String address = ""; //$NON-NLS-1$

				ISelection selection = viewer.getSelection();

				if (selection instanceof TextSelection) {

					String text = ((TextSelection) selection).getText();

					if (text.length() > 0) {

						try {

							if (text.toLowerCase().startsWith("0x")) { //$NON-NLS-1$

								text = text.substring(2, text.length());

							}

							BigInteger integer = new BigInteger(text, 16);

							address = integer.toString(16);

						} catch (NumberFormatException e) {

						}

					}

					if (address.length() == 0) {

						// show the dialog to get the address

						AddressDialog dlg = new AddressDialog(getViewSite()

								.getShell());

						if (dlg.open() == Window.OK) {

							address = dlg.getAddress();

						}

					}

				}

				if (address.trim().length() > 0) {

					sendUICommand(OBJECT_BRIEF_CMD + address);

				}

			}

		};

		object_brief_cmd.setText(Messages.getString("CrashDebuggerView.57")); //$NON-NLS-1$

		object_brief_cmd.setToolTipText(Messages

				.getString("CrashDebuggerView.58")); //$NON-NLS-1$

		object_full_cmd = new Action() {

			public void run() {

				String address = ""; //$NON-NLS-1$

				ISelection selection = viewer.getSelection();

				if (selection instanceof TextSelection) {

					String text = ((TextSelection) selection).getText();

					if (text.length() > 0) {

						try {

							if (text.toLowerCase().startsWith("0x")) { //$NON-NLS-1$

								text = text.substring(2, text.length());

							}

							BigInteger integer = new BigInteger(text, 16);

							address = integer.toString(16);

						} catch (NumberFormatException e) {

						}

					}

					if (address.length() == 0) {

						// show the dialog to get the address

						AddressDialog dlg = new AddressDialog(getViewSite()

								.getShell());

						if (dlg.open() == Window.OK) {

							address = dlg.getAddress();

						}

					}

				}

				if (address.trim().length() > 0) {