package org.symbian.tools.tmw.debug.internal.launch;

import org.chromium.debug.core.model.DebugTargetImpl;

import org.chromium.debug.core.model.JavascriptThread;

import org.chromium.debug.core.model.Messages;

import org.chromium.debug.core.model.StackFrame;

import org.chromium.debug.core.model.WorkspaceBridge.JsLabelProvider;

import org.chromium.sdk.CallFrame;

import org.chromium.sdk.DebugContext;

import org.chromium.sdk.ExceptionData;

import org.chromium.sdk.Script;

import org.eclipse.core.filesystem.IFileStore;

import org.eclipse.core.resources.IFile;

import org.eclipse.debug.core.DebugException;

import org.eclipse.osgi.util.NLS;

public class WrtLabelProvider implements JsLabelProvider {

    public String getStackFrameLabel(StackFrame stackFrame) throws DebugException {

        CallFrame callFrame = stackFrame.getCallFrame();

        String name = callFrame.getFunctionName();

        Script script = callFrame.getScript();

        if (script == null) {

            return "<unknown>";

        }

        Object element = stackFrame.getLaunch().getSourceLocator().getSourceElement(stackFrame);

        if (element instanceof IFile) {

            IFile resource = (IFile) element;

            int line = script.getStartLine() + stackFrame.getLineNumber();

            if (line != -1) {

                name = NLS.bind("{0} [{1}:{2}]", new Object[] { name, resourcePath, line });

            }

        } else if (element instanceof IFileStore) {

            return "(WRT System Library)";

        }

        return name;

    }

    public String getTargetLabel(DebugTargetImpl debugTarget) throws DebugException {

        return "WRT Runtime";

    }

    public String getThreadLabel(JavascriptThread thread) throws DebugException {

        return NLS.bind("JavaScript Thread ({0})", getThreadStateLabel(thread));

    }

    private String getThreadStateLabel(JavascriptThread thread) {

        if (thread.isSuspended()) {

            DebugContext context = thread.getDebugTarget().getDebugContext();

            ExceptionData exceptionData = context.getExceptionData();

            if (exceptionData != null) {

                return NLS.bind(Messages.JsThread_ThreadLabelSuspendedExceptionFormat,

                        exceptionData.getExceptionMessage());

            } else {

                return Messages.JsThread_ThreadLabelSuspended;

            }

        } else {

            return Messages.JsThread_ThreadLabelRunning;

        }

    }

}