/*
 * DO NOT EDIT.  THIS FILE IS GENERATED FROM nsINavHistoryService.idl
 */

#ifndef __gen_nsINavHistoryService_h__
#define __gen_nsINavHistoryService_h__


#ifndef __gen_nsISupports_h__
#include "nsISupports.h"
#endif

#ifndef __gen_nsIArray_h__
#include "nsIArray.h"
#endif

#ifndef __gen_nsIURI_h__
#include "nsIURI.h"
#endif

/* For IDL files that don't want to include root IDL files. */
#ifndef NS_NO_VTABLE
#define NS_NO_VTABLE
#endif
class nsIFile; /* forward declaration */

class nsINavHistoryContainerResultNode; /* forward declaration */

class nsINavHistoryQueryResultNode; /* forward declaration */

class nsINavHistoryFolderResultNode; /* forward declaration */

class nsINavHistoryQuery; /* forward declaration */

class nsINavHistoryQueryOptions; /* forward declaration */

class nsINavHistoryResult; /* forward declaration */

class nsITreeColumn; /* forward declaration */

class nsIWritablePropertyBag; /* forward declaration */


/* starting interface:    nsINavHistoryResultNode */
#define NS_INAVHISTORYRESULTNODE_IID_STR "acae2b2d-5fcd-4419-b1bc-b7dc92a1836c"

#define NS_INAVHISTORYRESULTNODE_IID \
  {0xacae2b2d, 0x5fcd, 0x4419, \
    { 0xb1, 0xbc, 0xb7, 0xdc, 0x92, 0xa1, 0x83, 0x6c }}

class NS_NO_VTABLE nsINavHistoryResultNode : public nsISupports {
 public: 

  NS_DECLARE_STATIC_IID_ACCESSOR(NS_INAVHISTORYRESULTNODE_IID)

  /**
   * Indentifies the parent result node in the result set. This is null for
   * top level nodes.
   */
  /* readonly attribute nsINavHistoryContainerResultNode parent; */
  NS_IMETHOD GetParent(nsINavHistoryContainerResultNode * *aParent) = 0;

  /**
   * URI of the resource in question. For visits and URLs, this is the URL of
   * the page. For folders and queries, this is the place: URI of the
   * corresponding folder or query. This may be empty for other types of
   * objects like host containers.
   */
  /* readonly attribute AUTF8String uri; */
  NS_IMETHOD GetUri(nsACString & aUri) = 0;

  /**
   * Identifies the type of this node. This node can then be QI-ed to the
   * corresponding specialized result node interface. The remote_container one
   * is a little weird, it is a temportary folder generated by the remote
   * container API. Note that bookmark folders can also be filled by the
   * remote container API (these are the entrypoints for the API) and may
   * have a remote container type as well.
   */
  enum { RESULT_TYPE_URI = 0U };

  enum { RESULT_TYPE_VISIT = 1U };

  enum { RESULT_TYPE_FULL_VISIT = 2U };

  enum { RESULT_TYPE_HOST = 3U };

  enum { RESULT_TYPE_REMOTE_CONTAINER = 4U };

  enum { RESULT_TYPE_QUERY = 5U };

  enum { RESULT_TYPE_FOLDER = 6U };

  enum { RESULT_TYPE_SEPARATOR = 7U };

  enum { RESULT_TYPE_DAY = 8U };

  /* readonly attribute PRUint32 type; */
  NS_IMETHOD GetType(PRUint32 *aType) = 0;

  /**
   * Title of the web page, or of the node's grouping (day, host, folder, etc)
   */
  /* readonly attribute AUTF8String title; */
  NS_IMETHOD GetTitle(nsACString & aTitle) = 0;

  /**
   * Total number of times the URI has ever been accessed. For hosts, this
   * is the total of the children under it, NOT the total times the host has
   * been accessed (this would require an additional query, so is not given
   * by default when most of the time it is never needed).
   */
  /* readonly attribute PRUint32 accessCount; */
  NS_IMETHOD GetAccessCount(PRUint32 *aAccessCount) = 0;

  /**
   * This is the time the user accessed the page.
   *
   * If this is a visit, it is the exact time that the page visit occurred.
   *
   * If this is a URI, it is the most recent time that the URI was visited.
   * Even if you ask for all URIs for a given date range long ago, this might
   * contain today's date if the URI was visited today.
   *
   * For hosts, or other node types with children, this is the most recent
   * access time for any of the children.
   *
   * For days, this is midnight on the morning of the day in question in
   * UTC time.
   */
  /* readonly attribute PRTime time; */
  NS_IMETHOD GetTime(PRTime *aTime) = 0;

  /**
   * This URI can be used as an image source URI and will give you the favicon
   * for the page. It is *not* the URI of the favicon, but rather something
   * that will resolve to the actual image.
   *
   * In most cases, this is an annotation URI that will query the favicon
   * service. If the entry has no favicon, this is the chrome URI of the
   * default favicon. If the favicon originally lived in chrome, this will
   * be the original chrome URI of the icon.
   */
  /* readonly attribute nsIURI icon; */
  NS_IMETHOD GetIcon(nsIURI * *aIcon) = 0;

  /**
   * This is the number of levels between this node and the top of the
   * hierarchy. The members of result.children have indentLevel = 0, their
   * children have indentLevel = 1, etc.
   */
  /* readonly attribute PRUint32 indentLevel; */
  NS_IMETHOD GetIndentLevel(PRUint32 *aIndentLevel) = 0;

  /**
   * Value with undefined meaning for use by the view. Its initial value will
   * be -1. The tree view uses this value to indicate the row in the tree that
   * this node is at. Other views may use this value however they choose.
   */
  /* attribute PRInt32 viewIndex; */
  NS_IMETHOD GetViewIndex(PRInt32 *aViewIndex) = 0;
  NS_IMETHOD SetViewIndex(PRInt32 aViewIndex) = 0;

  /**
   * You can use this to associate temporary information with the result node.
   * This property bag is associated with the result node and is not persisted
   * in any way.
   */
  /* readonly attribute nsIWritablePropertyBag propertyBag; */
  NS_IMETHOD GetPropertyBag(nsIWritablePropertyBag * *aPropertyBag) = 0;

  /**
   * When this item is in a bookmark folder (parent is of type folder), this is
   * the index into that folder of this node. These indices start at 0 and
   * increase in the order that they appear in the bookmark folder. For items
   * that are not in a bookmark folder, this value is -1.
   */
  /* readonly attribute PRInt32 bookmarkIndex; */
  NS_IMETHOD GetBookmarkIndex(PRInt32 *aBookmarkIndex) = 0;

};

  NS_DEFINE_STATIC_IID_ACCESSOR(nsINavHistoryResultNode, NS_INAVHISTORYRESULTNODE_IID)

/* Use this macro when declaring classes that implement this interface. */
#define NS_DECL_NSINAVHISTORYRESULTNODE \
  NS_IMETHOD GetParent(nsINavHistoryContainerResultNode * *aParent); \
  NS_IMETHOD GetUri(nsACString & aUri); \
  NS_IMETHOD GetType(PRUint32 *aType); \
  NS_IMETHOD GetTitle(nsACString & aTitle); \
  NS_IMETHOD GetAccessCount(PRUint32 *aAccessCount); \
  NS_IMETHOD GetTime(PRTime *aTime); \
  NS_IMETHOD GetIcon(nsIURI * *aIcon); \
  NS_IMETHOD GetIndentLevel(PRUint32 *aIndentLevel); \
  NS_IMETHOD GetViewIndex(PRInt32 *aViewIndex); \
  NS_IMETHOD SetViewIndex(PRInt32 aViewIndex); \
  NS_IMETHOD GetPropertyBag(nsIWritablePropertyBag * *aPropertyBag); \
  NS_IMETHOD GetBookmarkIndex(PRInt32 *aBookmarkIndex); 

/* Use this macro to declare functions that forward the behavior of this interface to another object. */
#define NS_FORWARD_NSINAVHISTORYRESULTNODE(_to) \
  NS_IMETHOD GetParent(nsINavHistoryContainerResultNode * *aParent) { return _to GetParent(aParent); } \
  NS_IMETHOD GetUri(nsACString & aUri) { return _to GetUri(aUri); } \
  NS_IMETHOD GetType(PRUint32 *aType) { return _to GetType(aType); } \
  NS_IMETHOD GetTitle(nsACString & aTitle) { return _to GetTitle(aTitle); } \
  NS_IMETHOD GetAccessCount(PRUint32 *aAccessCount) { return _to GetAccessCount(aAccessCount); } \
  NS_IMETHOD GetTime(PRTime *aTime) { return _to GetTime(aTime); } \
  NS_IMETHOD GetIcon(nsIURI * *aIcon) { return _to GetIcon(aIcon); } \
  NS_IMETHOD GetIndentLevel(PRUint32 *aIndentLevel) { return _to GetIndentLevel(aIndentLevel); } \
  NS_IMETHOD GetViewIndex(PRInt32 *aViewIndex) { return _to GetViewIndex(aViewIndex); } \
  NS_IMETHOD SetViewIndex(PRInt32 aViewIndex) { return _to SetViewIndex(aViewIndex); } \
  NS_IMETHOD GetPropertyBag(nsIWritablePropertyBag * *aPropertyBag) { return _to GetPropertyBag(aPropertyBag); } \
  NS_IMETHOD GetBookmarkIndex(PRInt32 *aBookmarkIndex) { return _to GetBookmarkIndex(aBookmarkIndex); } 

/* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
#define NS_FORWARD_SAFE_NSINAVHISTORYRESULTNODE(_to) \
  NS_IMETHOD GetParent(nsINavHistoryContainerResultNode * *aParent) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetParent(aParent); } \
  NS_IMETHOD GetUri(nsACString & aUri) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetUri(aUri); } \
  NS_IMETHOD GetType(PRUint32 *aType) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetType(aType); } \
  NS_IMETHOD GetTitle(nsACString & aTitle) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetTitle(aTitle); } \
  NS_IMETHOD GetAccessCount(PRUint32 *aAccessCount) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetAccessCount(aAccessCount); } \
  NS_IMETHOD GetTime(PRTime *aTime) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetTime(aTime); } \
  NS_IMETHOD GetIcon(nsIURI * *aIcon) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetIcon(aIcon); } \
  NS_IMETHOD GetIndentLevel(PRUint32 *aIndentLevel) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetIndentLevel(aIndentLevel); } \
  NS_IMETHOD GetViewIndex(PRInt32 *aViewIndex) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetViewIndex(aViewIndex); } \
  NS_IMETHOD SetViewIndex(PRInt32 aViewIndex) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetViewIndex(aViewIndex); } \
  NS_IMETHOD GetPropertyBag(nsIWritablePropertyBag * *aPropertyBag) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetPropertyBag(aPropertyBag); } \
  NS_IMETHOD GetBookmarkIndex(PRInt32 *aBookmarkIndex) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetBookmarkIndex(aBookmarkIndex); } 

#if 0
/* Use the code below as a template for the implementation class for this interface. */

/* Header file */
class nsNavHistoryResultNode : public nsINavHistoryResultNode
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSINAVHISTORYRESULTNODE

  nsNavHistoryResultNode();

private:
  ~nsNavHistoryResultNode();

protected:
  /* additional members */
};

/* Implementation file */
NS_IMPL_ISUPPORTS1(nsNavHistoryResultNode, nsINavHistoryResultNode)

nsNavHistoryResultNode::nsNavHistoryResultNode()
{
  /* member initializers and constructor code */
}

nsNavHistoryResultNode::~nsNavHistoryResultNode()
{
  /* destructor code */
}

/* readonly attribute nsINavHistoryContainerResultNode parent; */
NS_IMETHODIMP nsNavHistoryResultNode::GetParent(nsINavHistoryContainerResultNode * *aParent)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute AUTF8String uri; */
NS_IMETHODIMP nsNavHistoryResultNode::GetUri(nsACString & aUri)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute PRUint32 type; */
NS_IMETHODIMP nsNavHistoryResultNode::GetType(PRUint32 *aType)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute AUTF8String title; */
NS_IMETHODIMP nsNavHistoryResultNode::GetTitle(nsACString & aTitle)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute PRUint32 accessCount; */
NS_IMETHODIMP nsNavHistoryResultNode::GetAccessCount(PRUint32 *aAccessCount)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute PRTime time; */
NS_IMETHODIMP nsNavHistoryResultNode::GetTime(PRTime *aTime)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute nsIURI icon; */
NS_IMETHODIMP nsNavHistoryResultNode::GetIcon(nsIURI * *aIcon)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute PRUint32 indentLevel; */
NS_IMETHODIMP nsNavHistoryResultNode::GetIndentLevel(PRUint32 *aIndentLevel)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute PRInt32 viewIndex; */
NS_IMETHODIMP nsNavHistoryResultNode::GetViewIndex(PRInt32 *aViewIndex)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryResultNode::SetViewIndex(PRInt32 aViewIndex)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute nsIWritablePropertyBag propertyBag; */
NS_IMETHODIMP nsNavHistoryResultNode::GetPropertyBag(nsIWritablePropertyBag * *aPropertyBag)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute PRInt32 bookmarkIndex; */
NS_IMETHODIMP nsNavHistoryResultNode::GetBookmarkIndex(PRInt32 *aBookmarkIndex)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* End of implementation class template. */
#endif


/* starting interface:    nsINavHistoryVisitResultNode */
#define NS_INAVHISTORYVISITRESULTNODE_IID_STR "8e2c5a86-b33d-4fa6-944b-559af7e95fcd"

#define NS_INAVHISTORYVISITRESULTNODE_IID \
  {0x8e2c5a86, 0xb33d, 0x4fa6, \
    { 0x94, 0x4b, 0x55, 0x9a, 0xf7, 0xe9, 0x5f, 0xcd }}

/**
 * When you request RESULT_TYPE_VISIT from query options, you will get this
 * interface for each item, which includes the session ID so that we can
 * group items from the same session together.
 */
class NS_NO_VTABLE nsINavHistoryVisitResultNode : public nsINavHistoryResultNode {
 public: 

  NS_DECLARE_STATIC_IID_ACCESSOR(NS_INAVHISTORYVISITRESULTNODE_IID)

  /**
   * This indicates the session ID of the * visit. This is used for session
   * grouping when a tree view is sorted by date.
   */
  /* readonly attribute PRInt64 sessionId; */
  NS_IMETHOD GetSessionId(PRInt64 *aSessionId) = 0;

};

  NS_DEFINE_STATIC_IID_ACCESSOR(nsINavHistoryVisitResultNode, NS_INAVHISTORYVISITRESULTNODE_IID)

/* Use this macro when declaring classes that implement this interface. */
#define NS_DECL_NSINAVHISTORYVISITRESULTNODE \
  NS_IMETHOD GetSessionId(PRInt64 *aSessionId); 

/* Use this macro to declare functions that forward the behavior of this interface to another object. */
#define NS_FORWARD_NSINAVHISTORYVISITRESULTNODE(_to) \
  NS_IMETHOD GetSessionId(PRInt64 *aSessionId) { return _to GetSessionId(aSessionId); } 

/* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
#define NS_FORWARD_SAFE_NSINAVHISTORYVISITRESULTNODE(_to) \
  NS_IMETHOD GetSessionId(PRInt64 *aSessionId) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetSessionId(aSessionId); } 

#if 0
/* Use the code below as a template for the implementation class for this interface. */

/* Header file */
class nsNavHistoryVisitResultNode : public nsINavHistoryVisitResultNode
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSINAVHISTORYVISITRESULTNODE

  nsNavHistoryVisitResultNode();

private:
  ~nsNavHistoryVisitResultNode();

protected:
  /* additional members */
};

/* Implementation file */
NS_IMPL_ISUPPORTS1(nsNavHistoryVisitResultNode, nsINavHistoryVisitResultNode)

nsNavHistoryVisitResultNode::nsNavHistoryVisitResultNode()
{
  /* member initializers and constructor code */
}

nsNavHistoryVisitResultNode::~nsNavHistoryVisitResultNode()
{
  /* destructor code */
}

/* readonly attribute PRInt64 sessionId; */
NS_IMETHODIMP nsNavHistoryVisitResultNode::GetSessionId(PRInt64 *aSessionId)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* End of implementation class template. */
#endif


/* starting interface:    nsINavHistoryFullVisitResultNode */
#define NS_INAVHISTORYFULLVISITRESULTNODE_IID_STR "c49fd9d5-56e2-43eb-932c-f933f28cba85"

#define NS_INAVHISTORYFULLVISITRESULTNODE_IID \
  {0xc49fd9d5, 0x56e2, 0x43eb, \
    { 0x93, 0x2c, 0xf9, 0x33, 0xf2, 0x8c, 0xba, 0x85 }}

/**
 * This structure will be returned when you request RESULT_TYPE_FULL_VISIT in
 * the query options. This includes uncommonly used information about each
 * visit.
 */
class NS_NO_VTABLE nsINavHistoryFullVisitResultNode : public nsINavHistoryVisitResultNode {
 public: 

  NS_DECLARE_STATIC_IID_ACCESSOR(NS_INAVHISTORYFULLVISITRESULTNODE_IID)

  /**
   * This indicates the visit ID of the visit.
   */
  /* readonly attribute PRInt64 visitId; */
  NS_IMETHOD GetVisitId(PRInt64 *aVisitId) = 0;

  /**
   * This indicates the referring visit ID of the visit. The referrer should
   * have the same sessionId.
   */
  /* readonly attribute PRInt64 referringVisitId; */
  NS_IMETHOD GetReferringVisitId(PRInt64 *aReferringVisitId) = 0;

  /**
   * Indicates the transition type of the visit.
   * One of nsINavHistoryService.TRANSITION_*
   */
  /* readonly attribute PRInt32 transitionType; */
  NS_IMETHOD GetTransitionType(PRInt32 *aTransitionType) = 0;

};

  NS_DEFINE_STATIC_IID_ACCESSOR(nsINavHistoryFullVisitResultNode, NS_INAVHISTORYFULLVISITRESULTNODE_IID)

/* Use this macro when declaring classes that implement this interface. */
#define NS_DECL_NSINAVHISTORYFULLVISITRESULTNODE \
  NS_IMETHOD GetVisitId(PRInt64 *aVisitId); \
  NS_IMETHOD GetReferringVisitId(PRInt64 *aReferringVisitId); \
  NS_IMETHOD GetTransitionType(PRInt32 *aTransitionType); 

/* Use this macro to declare functions that forward the behavior of this interface to another object. */
#define NS_FORWARD_NSINAVHISTORYFULLVISITRESULTNODE(_to) \
  NS_IMETHOD GetVisitId(PRInt64 *aVisitId) { return _to GetVisitId(aVisitId); } \
  NS_IMETHOD GetReferringVisitId(PRInt64 *aReferringVisitId) { return _to GetReferringVisitId(aReferringVisitId); } \
  NS_IMETHOD GetTransitionType(PRInt32 *aTransitionType) { return _to GetTransitionType(aTransitionType); } 

/* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
#define NS_FORWARD_SAFE_NSINAVHISTORYFULLVISITRESULTNODE(_to) \
  NS_IMETHOD GetVisitId(PRInt64 *aVisitId) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetVisitId(aVisitId); } \
  NS_IMETHOD GetReferringVisitId(PRInt64 *aReferringVisitId) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetReferringVisitId(aReferringVisitId); } \
  NS_IMETHOD GetTransitionType(PRInt32 *aTransitionType) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetTransitionType(aTransitionType); } 

#if 0
/* Use the code below as a template for the implementation class for this interface. */

/* Header file */
class nsNavHistoryFullVisitResultNode : public nsINavHistoryFullVisitResultNode
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSINAVHISTORYFULLVISITRESULTNODE

  nsNavHistoryFullVisitResultNode();

private:
  ~nsNavHistoryFullVisitResultNode();

protected:
  /* additional members */
};

/* Implementation file */
NS_IMPL_ISUPPORTS1(nsNavHistoryFullVisitResultNode, nsINavHistoryFullVisitResultNode)

nsNavHistoryFullVisitResultNode::nsNavHistoryFullVisitResultNode()
{
  /* member initializers and constructor code */
}

nsNavHistoryFullVisitResultNode::~nsNavHistoryFullVisitResultNode()
{
  /* destructor code */
}

/* readonly attribute PRInt64 visitId; */
NS_IMETHODIMP nsNavHistoryFullVisitResultNode::GetVisitId(PRInt64 *aVisitId)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute PRInt64 referringVisitId; */
NS_IMETHODIMP nsNavHistoryFullVisitResultNode::GetReferringVisitId(PRInt64 *aReferringVisitId)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute PRInt32 transitionType; */
NS_IMETHODIMP nsNavHistoryFullVisitResultNode::GetTransitionType(PRInt32 *aTransitionType)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* End of implementation class template. */
#endif


/* starting interface:    nsINavHistoryContainerResultNode */
#define NS_INAVHISTORYCONTAINERRESULTNODE_IID_STR "957065fd-76e7-4c24-9284-c31b5decbaaa"

#define NS_INAVHISTORYCONTAINERRESULTNODE_IID \
  {0x957065fd, 0x76e7, 0x4c24, \
    { 0x92, 0x84, 0xc3, 0x1b, 0x5d, 0xec, 0xba, 0xaa }}

class NS_NO_VTABLE nsINavHistoryContainerResultNode : public nsINavHistoryResultNode {
 public: 

  NS_DECLARE_STATIC_IID_ACCESSOR(NS_INAVHISTORYCONTAINERRESULTNODE_IID)

  /**
 * Base class for container results. This includes all types of groupings.
 * Bookmark folders and places queries will be QueryResultNodes which extends
 * these items.
 */
/**
   * Set this to allow descent into the container. When closed, attempting
   * to call getChildren or childCount will result in an error. You should
   * set this to false when you are done reading.
   *
   * For HOST and DAY groupings, doing this is free since the children have
   * been precomputed. For queries and bookmark folders, being open means they
   * will keep themselves up-to-date by listening for updates and re-querying
   * as needed.
   */
  /* attribute boolean containerOpen; */
  NS_IMETHOD GetContainerOpen(PRBool *aContainerOpen) = 0;
  NS_IMETHOD SetContainerOpen(PRBool aContainerOpen) = 0;

  /**
   * This indicates whether this node "may" have children, and can be used
   * when the container is open or closed. When the container is closed, it
   * will give you an exact answer if the node can easily be populated (for
   * example, a bookmark folder). If not (for example, a complex history query),
   * it will return true. When the container is open, it will always be
   * accurate. It is intended to be used to see if we should draw the "+" next
   * to a tree item.
   */
  /* readonly attribute boolean hasChildren; */
  NS_IMETHOD GetHasChildren(PRBool *aHasChildren) = 0;

  /**
   * This gives you the children of the nodes. It is preferrable to use this
   * interface over the array one, since it avoids creating an nsIArray object
   * and the interface is already the correct type.
   */
  /* readonly attribute PRUint32 childCount; */
  NS_IMETHOD GetChildCount(PRUint32 *aChildCount) = 0;

  /* nsINavHistoryResultNode getChild (in PRUint32 index); */
  NS_IMETHOD GetChild(PRUint32 index, nsINavHistoryResultNode **_retval) = 0;

  /**
   * Returns false if this node's list of children can be modified
   * (adding or removing children, or reordering children), or true if
   * the UI should not allow the list of children to be modified.
   * This is false for bookmark folder nodes unless setFolderReadOnly() has
   * been called to override it, and true for non-folder nodes. If this
   * container is a remote container this flag may be redefined by the
   * remote container provider.
   */
  /* readonly attribute boolean childrenReadOnly; */
  NS_IMETHOD GetChildrenReadOnly(PRBool *aChildrenReadOnly) = 0;

  /**
   * This is a string representing the remote container API service that is
   * responsible for this container. It is empty if there is none.  The 
   * container may be a RESULT_TYPE_REMOTE_CONTAINER node that has been 
   * dynamically generated by the remote container API.  It may also be a 
   * bookmark folder (RESULT_TYPE_FOLDER) for which some service (such as 
   * livemarks) has registered to provide certain operations.
   */
  /* readonly attribute AUTF8String remoteContainerType; */
  NS_IMETHOD GetRemoteContainerType(nsACString & aRemoteContainerType) = 0;

};

  NS_DEFINE_STATIC_IID_ACCESSOR(nsINavHistoryContainerResultNode, NS_INAVHISTORYCONTAINERRESULTNODE_IID)

/* Use this macro when declaring classes that implement this interface. */
#define NS_DECL_NSINAVHISTORYCONTAINERRESULTNODE \
  NS_IMETHOD GetContainerOpen(PRBool *aContainerOpen); \
  NS_IMETHOD SetContainerOpen(PRBool aContainerOpen); \
  NS_IMETHOD GetHasChildren(PRBool *aHasChildren); \
  NS_IMETHOD GetChildCount(PRUint32 *aChildCount); \
  NS_IMETHOD GetChild(PRUint32 index, nsINavHistoryResultNode **_retval); \
  NS_IMETHOD GetChildrenReadOnly(PRBool *aChildrenReadOnly); \
  NS_IMETHOD GetRemoteContainerType(nsACString & aRemoteContainerType); 

/* Use this macro to declare functions that forward the behavior of this interface to another object. */
#define NS_FORWARD_NSINAVHISTORYCONTAINERRESULTNODE(_to) \
  NS_IMETHOD GetContainerOpen(PRBool *aContainerOpen) { return _to GetContainerOpen(aContainerOpen); } \
  NS_IMETHOD SetContainerOpen(PRBool aContainerOpen) { return _to SetContainerOpen(aContainerOpen); } \
  NS_IMETHOD GetHasChildren(PRBool *aHasChildren) { return _to GetHasChildren(aHasChildren); } \
  NS_IMETHOD GetChildCount(PRUint32 *aChildCount) { return _to GetChildCount(aChildCount); } \
  NS_IMETHOD GetChild(PRUint32 index, nsINavHistoryResultNode **_retval) { return _to GetChild(index, _retval); } \
  NS_IMETHOD GetChildrenReadOnly(PRBool *aChildrenReadOnly) { return _to GetChildrenReadOnly(aChildrenReadOnly); } \
  NS_IMETHOD GetRemoteContainerType(nsACString & aRemoteContainerType) { return _to GetRemoteContainerType(aRemoteContainerType); } 

/* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
#define NS_FORWARD_SAFE_NSINAVHISTORYCONTAINERRESULTNODE(_to) \
  NS_IMETHOD GetContainerOpen(PRBool *aContainerOpen) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetContainerOpen(aContainerOpen); } \
  NS_IMETHOD SetContainerOpen(PRBool aContainerOpen) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetContainerOpen(aContainerOpen); } \
  NS_IMETHOD GetHasChildren(PRBool *aHasChildren) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetHasChildren(aHasChildren); } \
  NS_IMETHOD GetChildCount(PRUint32 *aChildCount) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetChildCount(aChildCount); } \
  NS_IMETHOD GetChild(PRUint32 index, nsINavHistoryResultNode **_retval) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetChild(index, _retval); } \
  NS_IMETHOD GetChildrenReadOnly(PRBool *aChildrenReadOnly) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetChildrenReadOnly(aChildrenReadOnly); } \
  NS_IMETHOD GetRemoteContainerType(nsACString & aRemoteContainerType) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetRemoteContainerType(aRemoteContainerType); } 

#if 0
/* Use the code below as a template for the implementation class for this interface. */

/* Header file */
class nsNavHistoryContainerResultNode : public nsINavHistoryContainerResultNode
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSINAVHISTORYCONTAINERRESULTNODE

  nsNavHistoryContainerResultNode();

private:
  ~nsNavHistoryContainerResultNode();

protected:
  /* additional members */
};

/* Implementation file */
NS_IMPL_ISUPPORTS1(nsNavHistoryContainerResultNode, nsINavHistoryContainerResultNode)

nsNavHistoryContainerResultNode::nsNavHistoryContainerResultNode()
{
  /* member initializers and constructor code */
}

nsNavHistoryContainerResultNode::~nsNavHistoryContainerResultNode()
{
  /* destructor code */
}

/* attribute boolean containerOpen; */
NS_IMETHODIMP nsNavHistoryContainerResultNode::GetContainerOpen(PRBool *aContainerOpen)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryContainerResultNode::SetContainerOpen(PRBool aContainerOpen)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute boolean hasChildren; */
NS_IMETHODIMP nsNavHistoryContainerResultNode::GetHasChildren(PRBool *aHasChildren)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute PRUint32 childCount; */
NS_IMETHODIMP nsNavHistoryContainerResultNode::GetChildCount(PRUint32 *aChildCount)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* nsINavHistoryResultNode getChild (in PRUint32 index); */
NS_IMETHODIMP nsNavHistoryContainerResultNode::GetChild(PRUint32 index, nsINavHistoryResultNode **_retval)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute boolean childrenReadOnly; */
NS_IMETHODIMP nsNavHistoryContainerResultNode::GetChildrenReadOnly(PRBool *aChildrenReadOnly)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute AUTF8String remoteContainerType; */
NS_IMETHODIMP nsNavHistoryContainerResultNode::GetRemoteContainerType(nsACString & aRemoteContainerType)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* End of implementation class template. */
#endif


/* starting interface:    nsINavHistoryQueryResultNode */
#define NS_INAVHISTORYQUERYRESULTNODE_IID_STR "dcd6a2b7-3d50-4c78-b1cb-2f0f18ac5864"

#define NS_INAVHISTORYQUERYRESULTNODE_IID \
  {0xdcd6a2b7, 0x3d50, 0x4c78, \
    { 0xb1, 0xcb, 0x2f, 0x0f, 0x18, 0xac, 0x58, 0x64 }}

class NS_NO_VTABLE nsINavHistoryQueryResultNode : public nsINavHistoryContainerResultNode {
 public: 

  NS_DECLARE_STATIC_IID_ACCESSOR(NS_INAVHISTORYQUERYRESULTNODE_IID)

  /**
   * Appends a full visit node to this container and returns it. For the remote
   * container API. TO BE CALLED FROM nsIRemoteContainer::OnContainerOpening()
   * ONLY, and only for non-bookmark-folder containers.
   *
   * @see nsINavHistoryURIResultNode for parameters.
   *
   * UNTESTED: Container API functions are commented out until we can test
   */
/**
   * Appends a full visit node to this container and returns it. For the remote
   * container API. TO BE CALLED FROM nsIRemoteContainer::OnContainerOpening()
   * ONLY, and only for non-bookmark-folder containers.
   *
   * @see nsINavHistoryVisitResultNode for parameters.
   *
   * UNTESTED: Container API functions are commented out until we can test
   */
/**
   * Appends a full visit node to this container and returns it. For the remote
   * container API. TO BE CALLED FROM nsIRemoteContainer::OnContainerOpening()
   * ONLY, and only for non-bookmark-folder containers.
   *
   * @see nsINavHistoryFullVisitResultNode for parameters.
   *
   * UNTESTED: Container API functions are commented out until we can test
   */
/**
   * Appends a container node to this container and returns it. For the remote
   * container API. TO BE CALLED FROM nsIRemoteContainer::OnContainerOpening()
   * ONLY, and only for non-bookmark-folder containers.
   *
   * aContainerType should be either RESULT_TYPE_HOST or
   * RESULT_TYPE_REMOTE_CONTAINER. When type is remote container you must
   * specify a remote container type, otherwise, the remote container type must
   * be null. Use appendQueryNode and appendFolderNode for the other container
   * types.
   *
   * UNTESTED: Container API functions are commented out until we can test
   */
/**
   * Appends a query node to this container and returns it. For the remote
   * container API. TO BE CALLED FROM nsIRemoteContainer::OnContainerOpening()
   * ONLY, and only for non-bookmark-folder containers.
   *
   * Normally you should supply an empty string for IconURI and it will take
   * the default query icon for the current theme.
   *
   * UNTESTED: Container API functions are commented out until we can test
   */
/**
   * Appends a bookmark folder node to this container and returns it. For the
   * remote container API. TO BE CALLED FROM nsIRemoteContainer::OnContainerOpening()
   * ONLY, and only for non-bookmark-folder containers.
   *
   * All container attributes will come from the boomkarks service for this
   * folder.
   *
   * UNTESTED: Container API functions are commented out until we can test
   */
/**
   * Clears all children of this container. For the remote container API.
   * TO BE CALLED FROM nsIRemoteContainer::OnContainerOpening and
   * nsIRemoteContainer::OnContainerClosed ONLY, and valid only for
   * non-bookmark-folder containers.
   *
   * UNTESTED: Container API functions are commented out until we can test
   */
/**
 * Used for places queries and as a base for bookmark folders.
 *
 * Note that if you request places to *not* be expanded in the options that
 * generated this node, this item will report it has no children and never try
 * to populate itself.
 */
/**
   * Get the queries which build this node's children.
   * Only valid for RESULT_TYPE_QUERY nodes.
   */
  /* void getQueries (out unsigned long queryCount, [array, size_is (queryCount), retval] out nsINavHistoryQuery queries); */
  NS_IMETHOD GetQueries(PRUint32 *queryCount, nsINavHistoryQuery ***queries) = 0;

  /**
   * Get the options which group this node's children.
   * Only valid for RESULT_TYPE_QUERY nodes.
   */
  /* readonly attribute nsINavHistoryQueryOptions queryOptions; */
  NS_IMETHOD GetQueryOptions(nsINavHistoryQueryOptions * *aQueryOptions) = 0;

};

  NS_DEFINE_STATIC_IID_ACCESSOR(nsINavHistoryQueryResultNode, NS_INAVHISTORYQUERYRESULTNODE_IID)

/* Use this macro when declaring classes that implement this interface. */
#define NS_DECL_NSINAVHISTORYQUERYRESULTNODE \
  NS_IMETHOD GetQueries(PRUint32 *queryCount, nsINavHistoryQuery ***queries); \
  NS_IMETHOD GetQueryOptions(nsINavHistoryQueryOptions * *aQueryOptions); 

/* Use this macro to declare functions that forward the behavior of this interface to another object. */
#define NS_FORWARD_NSINAVHISTORYQUERYRESULTNODE(_to) \
  NS_IMETHOD GetQueries(PRUint32 *queryCount, nsINavHistoryQuery ***queries) { return _to GetQueries(queryCount, queries); } \
  NS_IMETHOD GetQueryOptions(nsINavHistoryQueryOptions * *aQueryOptions) { return _to GetQueryOptions(aQueryOptions); } 

/* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
#define NS_FORWARD_SAFE_NSINAVHISTORYQUERYRESULTNODE(_to) \
  NS_IMETHOD GetQueries(PRUint32 *queryCount, nsINavHistoryQuery ***queries) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetQueries(queryCount, queries); } \
  NS_IMETHOD GetQueryOptions(nsINavHistoryQueryOptions * *aQueryOptions) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetQueryOptions(aQueryOptions); } 

#if 0
/* Use the code below as a template for the implementation class for this interface. */

/* Header file */
class nsNavHistoryQueryResultNode : public nsINavHistoryQueryResultNode
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSINAVHISTORYQUERYRESULTNODE

  nsNavHistoryQueryResultNode();

private:
  ~nsNavHistoryQueryResultNode();

protected:
  /* additional members */
};

/* Implementation file */
NS_IMPL_ISUPPORTS1(nsNavHistoryQueryResultNode, nsINavHistoryQueryResultNode)

nsNavHistoryQueryResultNode::nsNavHistoryQueryResultNode()
{
  /* member initializers and constructor code */
}

nsNavHistoryQueryResultNode::~nsNavHistoryQueryResultNode()
{
  /* destructor code */
}

/* void getQueries (out unsigned long queryCount, [array, size_is (queryCount), retval] out nsINavHistoryQuery queries); */
NS_IMETHODIMP nsNavHistoryQueryResultNode::GetQueries(PRUint32 *queryCount, nsINavHistoryQuery ***queries)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute nsINavHistoryQueryOptions queryOptions; */
NS_IMETHODIMP nsNavHistoryQueryResultNode::GetQueryOptions(nsINavHistoryQueryOptions * *aQueryOptions)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* End of implementation class template. */
#endif


/* starting interface:    nsINavHistoryFolderResultNode */
#define NS_INAVHISTORYFOLDERRESULTNODE_IID_STR "f3160bfe-ebb3-453b-b25e-19d0b9c425b1"

#define NS_INAVHISTORYFOLDERRESULTNODE_IID \
  {0xf3160bfe, 0xebb3, 0x453b, \
    { 0xb2, 0x5e, 0x19, 0xd0, 0xb9, 0xc4, 0x25, 0xb1 }}

class NS_NO_VTABLE nsINavHistoryFolderResultNode : public nsINavHistoryQueryResultNode {
 public: 

  NS_DECLARE_STATIC_IID_ACCESSOR(NS_INAVHISTORYFOLDERRESULTNODE_IID)

  /**
 * Represents a bookmark folder (type == RESULT_TYPE_FOLDER). It derives from a
 * query result because it can provide a query that will result in the
 * contents.
 */
/**
   * ID of the folder corresponding to this node.
   * Only valid for RESULT_TYPE_QUERY nodes where exactly one folder
   * has been specified in the query.  0 in all other cases.
   */
  /* readonly attribute PRInt64 folderId; */
  NS_IMETHOD GetFolderId(PRInt64 *aFolderId) = 0;

};

  NS_DEFINE_STATIC_IID_ACCESSOR(nsINavHistoryFolderResultNode, NS_INAVHISTORYFOLDERRESULTNODE_IID)

/* Use this macro when declaring classes that implement this interface. */
#define NS_DECL_NSINAVHISTORYFOLDERRESULTNODE \
  NS_IMETHOD GetFolderId(PRInt64 *aFolderId); 

/* Use this macro to declare functions that forward the behavior of this interface to another object. */
#define NS_FORWARD_NSINAVHISTORYFOLDERRESULTNODE(_to) \
  NS_IMETHOD GetFolderId(PRInt64 *aFolderId) { return _to GetFolderId(aFolderId); } 

/* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
#define NS_FORWARD_SAFE_NSINAVHISTORYFOLDERRESULTNODE(_to) \
  NS_IMETHOD GetFolderId(PRInt64 *aFolderId) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetFolderId(aFolderId); } 

#if 0
/* Use the code below as a template for the implementation class for this interface. */

/* Header file */
class nsNavHistoryFolderResultNode : public nsINavHistoryFolderResultNode
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSINAVHISTORYFOLDERRESULTNODE

  nsNavHistoryFolderResultNode();

private:
  ~nsNavHistoryFolderResultNode();

protected:
  /* additional members */
};

/* Implementation file */
NS_IMPL_ISUPPORTS1(nsNavHistoryFolderResultNode, nsINavHistoryFolderResultNode)

nsNavHistoryFolderResultNode::nsNavHistoryFolderResultNode()
{
  /* member initializers and constructor code */
}

nsNavHistoryFolderResultNode::~nsNavHistoryFolderResultNode()
{
  /* destructor code */
}

/* readonly attribute PRInt64 folderId; */
NS_IMETHODIMP nsNavHistoryFolderResultNode::GetFolderId(PRInt64 *aFolderId)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* End of implementation class template. */
#endif


/* starting interface:    nsINavHistoryResultViewObserver */
#define NS_INAVHISTORYRESULTVIEWOBSERVER_IID_STR "b34d5ca4-ce8e-49a6-9201-a59ae2128d2c"

#define NS_INAVHISTORYRESULTVIEWOBSERVER_IID \
  {0xb34d5ca4, 0xce8e, 0x49a6, \
    { 0x92, 0x01, 0xa5, 0x9a, 0xe2, 0x12, 0x8d, 0x2c }}

/**
 *  Allows clients of the HistoryResult to define domain specific handling 
 *  of specific nsITreeView methods that the HistoryResult does not implement.
 *
 *  @see nsINavHistoryResult for where this fits in
 */
class NS_NO_VTABLE nsINavHistoryResultViewObserver : public nsISupports {
 public: 

  NS_DECLARE_STATIC_IID_ACCESSOR(NS_INAVHISTORYRESULTVIEWOBSERVER_IID)

  enum { DROP_BEFORE = -1 };

  enum { DROP_ON = 0 };

  enum { DROP_AFTER = 1 };

  /**
   * Methods used by the drag feedback code to determine if a drag is allowable at
   * the current location. To get the behavior where drops are only allowed on
   * items, such as the mailNews folder pane, always return false whe
   * the orientation is not DROP_ON. Implementors should not change the content of
   * the observer list!
   */
  /* boolean canDrop (in long index, in long orientation); */
  NS_IMETHOD CanDrop(PRInt32 index, PRInt32 orientation, PRBool *_retval) = 0;

  /**
   * Called when the user drops something on this view. The |orientation| param
   * specifies before/on/after the given |row|.
   */
  /* void onDrop (in long row, in long orientation); */
  NS_IMETHOD OnDrop(PRInt32 row, PRInt32 orientation) = 0;

  /** 
   * Called when an item is opened or closed. 
   */
  /* void onToggleOpenState (in long index); */
  NS_IMETHOD OnToggleOpenState(PRInt32 index) = 0;

  /** 
 * Called when a header is clicked.
   */
  /* void onCycleHeader (in nsITreeColumn column); */
  NS_IMETHOD OnCycleHeader(nsITreeColumn *column) = 0;

  /**
   * Called when a cell in a non-selectable cycling column (e.g. 
   * unread/flag/etc.) is clicked.
   */
  /* void onCycleCell (in long row, in nsITreeColumn column); */
  NS_IMETHOD OnCycleCell(PRInt32 row, nsITreeColumn *column) = 0;

  /** 
   * Called when selection in the tree changes
   */
  /* void onSelectionChanged (); */
  NS_IMETHOD OnSelectionChanged(void) = 0;

  /**
   * A command API that can be used to invoke commands on the selection.  
   * The tree will automatically invoke this method when certain keys 
   * are pressed.  For example, when the DEL key is pressed, performAction 
   * will be called with the "delete" string. 
   */
  /* void onPerformAction (in wstring action); */
  NS_IMETHOD OnPerformAction(const PRUnichar *action) = 0;

  /**
   * A command API that can be used to invoke commands on a specific row.
   */
  /* void onPerformActionOnRow (in wstring action, in long row); */
  NS_IMETHOD OnPerformActionOnRow(const PRUnichar *action, PRInt32 row) = 0;

  /**
   * A command API that can be used to invoke commands on a specific cell.
   */
  /* void onPerformActionOnCell (in wstring action, in long row, in nsITreeColumn column); */
  NS_IMETHOD OnPerformActionOnCell(const PRUnichar *action, PRInt32 row, nsITreeColumn *column) = 0;

};

  NS_DEFINE_STATIC_IID_ACCESSOR(nsINavHistoryResultViewObserver, NS_INAVHISTORYRESULTVIEWOBSERVER_IID)

/* Use this macro when declaring classes that implement this interface. */
#define NS_DECL_NSINAVHISTORYRESULTVIEWOBSERVER \
  NS_IMETHOD CanDrop(PRInt32 index, PRInt32 orientation, PRBool *_retval); \
  NS_IMETHOD OnDrop(PRInt32 row, PRInt32 orientation); \
  NS_IMETHOD OnToggleOpenState(PRInt32 index); \
  NS_IMETHOD OnCycleHeader(nsITreeColumn *column); \
  NS_IMETHOD OnCycleCell(PRInt32 row, nsITreeColumn *column); \
  NS_IMETHOD OnSelectionChanged(void); \
  NS_IMETHOD OnPerformAction(const PRUnichar *action); \
  NS_IMETHOD OnPerformActionOnRow(const PRUnichar *action, PRInt32 row); \
  NS_IMETHOD OnPerformActionOnCell(const PRUnichar *action, PRInt32 row, nsITreeColumn *column); 

/* Use this macro to declare functions that forward the behavior of this interface to another object. */
#define NS_FORWARD_NSINAVHISTORYRESULTVIEWOBSERVER(_to) \
  NS_IMETHOD CanDrop(PRInt32 index, PRInt32 orientation, PRBool *_retval) { return _to CanDrop(index, orientation, _retval); } \
  NS_IMETHOD OnDrop(PRInt32 row, PRInt32 orientation) { return _to OnDrop(row, orientation); } \
  NS_IMETHOD OnToggleOpenState(PRInt32 index) { return _to OnToggleOpenState(index); } \
  NS_IMETHOD OnCycleHeader(nsITreeColumn *column) { return _to OnCycleHeader(column); } \
  NS_IMETHOD OnCycleCell(PRInt32 row, nsITreeColumn *column) { return _to OnCycleCell(row, column); } \
  NS_IMETHOD OnSelectionChanged(void) { return _to OnSelectionChanged(); } \
  NS_IMETHOD OnPerformAction(const PRUnichar *action) { return _to OnPerformAction(action); } \
  NS_IMETHOD OnPerformActionOnRow(const PRUnichar *action, PRInt32 row) { return _to OnPerformActionOnRow(action, row); } \
  NS_IMETHOD OnPerformActionOnCell(const PRUnichar *action, PRInt32 row, nsITreeColumn *column) { return _to OnPerformActionOnCell(action, row, column); } 

/* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
#define NS_FORWARD_SAFE_NSINAVHISTORYRESULTVIEWOBSERVER(_to) \
  NS_IMETHOD CanDrop(PRInt32 index, PRInt32 orientation, PRBool *_retval) { return !_to ? NS_ERROR_NULL_POINTER : _to->CanDrop(index, orientation, _retval); } \
  NS_IMETHOD OnDrop(PRInt32 row, PRInt32 orientation) { return !_to ? NS_ERROR_NULL_POINTER : _to->OnDrop(row, orientation); } \
  NS_IMETHOD OnToggleOpenState(PRInt32 index) { return !_to ? NS_ERROR_NULL_POINTER : _to->OnToggleOpenState(index); } \
  NS_IMETHOD OnCycleHeader(nsITreeColumn *column) { return !_to ? NS_ERROR_NULL_POINTER : _to->OnCycleHeader(column); } \
  NS_IMETHOD OnCycleCell(PRInt32 row, nsITreeColumn *column) { return !_to ? NS_ERROR_NULL_POINTER : _to->OnCycleCell(row, column); } \
  NS_IMETHOD OnSelectionChanged(void) { return !_to ? NS_ERROR_NULL_POINTER : _to->OnSelectionChanged(); } \
  NS_IMETHOD OnPerformAction(const PRUnichar *action) { return !_to ? NS_ERROR_NULL_POINTER : _to->OnPerformAction(action); } \
  NS_IMETHOD OnPerformActionOnRow(const PRUnichar *action, PRInt32 row) { return !_to ? NS_ERROR_NULL_POINTER : _to->OnPerformActionOnRow(action, row); } \
  NS_IMETHOD OnPerformActionOnCell(const PRUnichar *action, PRInt32 row, nsITreeColumn *column) { return !_to ? NS_ERROR_NULL_POINTER : _to->OnPerformActionOnCell(action, row, column); } 

#if 0
/* Use the code below as a template for the implementation class for this interface. */

/* Header file */
class nsNavHistoryResultViewObserver : public nsINavHistoryResultViewObserver
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSINAVHISTORYRESULTVIEWOBSERVER

  nsNavHistoryResultViewObserver();

private:
  ~nsNavHistoryResultViewObserver();

protected:
  /* additional members */
};

/* Implementation file */
NS_IMPL_ISUPPORTS1(nsNavHistoryResultViewObserver, nsINavHistoryResultViewObserver)

nsNavHistoryResultViewObserver::nsNavHistoryResultViewObserver()
{
  /* member initializers and constructor code */
}

nsNavHistoryResultViewObserver::~nsNavHistoryResultViewObserver()
{
  /* destructor code */
}

/* boolean canDrop (in long index, in long orientation); */
NS_IMETHODIMP nsNavHistoryResultViewObserver::CanDrop(PRInt32 index, PRInt32 orientation, PRBool *_retval)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void onDrop (in long row, in long orientation); */
NS_IMETHODIMP nsNavHistoryResultViewObserver::OnDrop(PRInt32 row, PRInt32 orientation)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void onToggleOpenState (in long index); */
NS_IMETHODIMP nsNavHistoryResultViewObserver::OnToggleOpenState(PRInt32 index)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void onCycleHeader (in nsITreeColumn column); */
NS_IMETHODIMP nsNavHistoryResultViewObserver::OnCycleHeader(nsITreeColumn *column)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void onCycleCell (in long row, in nsITreeColumn column); */
NS_IMETHODIMP nsNavHistoryResultViewObserver::OnCycleCell(PRInt32 row, nsITreeColumn *column)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void onSelectionChanged (); */
NS_IMETHODIMP nsNavHistoryResultViewObserver::OnSelectionChanged()
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void onPerformAction (in wstring action); */
NS_IMETHODIMP nsNavHistoryResultViewObserver::OnPerformAction(const PRUnichar *action)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void onPerformActionOnRow (in wstring action, in long row); */
NS_IMETHODIMP nsNavHistoryResultViewObserver::OnPerformActionOnRow(const PRUnichar *action, PRInt32 row)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void onPerformActionOnCell (in wstring action, in long row, in nsITreeColumn column); */
NS_IMETHODIMP nsNavHistoryResultViewObserver::OnPerformActionOnCell(const PRUnichar *action, PRInt32 row, nsITreeColumn *column)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* End of implementation class template. */
#endif


/* starting interface:    nsINavHistoryResultViewer */
#define NS_INAVHISTORYRESULTVIEWER_IID_STR "11032c23-a9fd-4918-bc8f-004726a748da"

#define NS_INAVHISTORYRESULTVIEWER_IID \
  {0x11032c23, 0xa9fd, 0x4918, \
    { 0xbc, 0x8f, 0x00, 0x47, 0x26, 0xa7, 0x48, 0xda }}

/**
 * Allows clients to observe what is happening to a result as it updates itself
 * according to history and bookmark system events. Register this observer on a
 * result using registerView
 *
 * @see nsINavHistoryResult for where this fits in
 */
class NS_NO_VTABLE nsINavHistoryResultViewer : public nsISupports {
 public: 

  NS_DECLARE_STATIC_IID_ACCESSOR(NS_INAVHISTORYRESULTVIEWER_IID)

  /**
   * Called when 'item' is inserted into 'parent' at index 'newIndex'. The item
   * previously at index (if any) and everything below it will have been
   * shifted down by one. The item may be a container or a leaf.
   */
  /* void itemInserted (in nsINavHistoryContainerResultNode parent, in nsINavHistoryResultNode item, in PRUint32 newIndex); */
  NS_IMETHOD ItemInserted(nsINavHistoryContainerResultNode *parent, nsINavHistoryResultNode *item, PRUint32 newIndex) = 0;

  /**
   * Called whan 'item' is removed from 'parent' at 'oldIndex'. The item may be
   * a container or a leaf. This function will be called after the item has
   * been removed from its parent list, but before anything else (including
   * NULLing out the item's parent) has happened.
   */
  /* void itemRemoved (in nsINavHistoryContainerResultNode parent, in nsINavHistoryResultNode item, in PRUint32 oldIndex); */
  NS_IMETHOD ItemRemoved(nsINavHistoryContainerResultNode *parent, nsINavHistoryResultNode *item, PRUint32 oldIndex) = 0;

  /**
   * Called when an item has been changed and should be repainted. This only
   * refers to the specific item. If it is a container, getting this message
   * does not imply anything happened to the children. You'll get separate
   * messages for those. Also, this may be called for container nodes at times
   * when the result thinks it's possible that a twisty mey need to bw redrawn.
   */
  /* void itemChanged (in nsINavHistoryResultNode item); */
  NS_IMETHOD ItemChanged(nsINavHistoryResultNode *item) = 0;

  /**
   * Called when an item is being replaced with another item at the exact
   * same position.
   */
  /* void itemReplaced (in nsINavHistoryContainerResultNode parent, in nsINavHistoryResultNode oldItem, in nsINavHistoryResultNode newItem, in PRUint32 index); */
  NS_IMETHOD ItemReplaced(nsINavHistoryContainerResultNode *parent, nsINavHistoryResultNode *oldItem, nsINavHistoryResultNode *newItem, PRUint32 index) = 0;

  /**
   * Called after a container node went from closed to opened.
   */
  /* void containerOpened (in nsINavHistoryContainerResultNode item); */
  NS_IMETHOD ContainerOpened(nsINavHistoryContainerResultNode *item) = 0;

  /**
   * Called after a container node went from opened to closed. This will be
   * called for the topmost container that is closing, and implies that any
   * child containers have closed as well.
   */
  /* void containerClosed (in nsINavHistoryContainerResultNode item); */
  NS_IMETHOD ContainerClosed(nsINavHistoryContainerResultNode *item) = 0;

  /**
   * Called when something significant has happened within the container. The
   * contents of the container should be re-built.
   */
  /* void invalidateContainer (in nsINavHistoryContainerResultNode item); */
  NS_IMETHOD InvalidateContainer(nsINavHistoryContainerResultNode *item) = 0;

  /**
   * Called when something significant is changing that requires everything
   * to be recomputed. For example, changing sorting or changing collapse
   * duplicates can affect every row.
   */
  /* void invalidateAll (); */
  NS_IMETHOD InvalidateAll(void) = 0;

  /**
   * This is called to indicate to the UI that the sort has changed to the
   * given mode. For trees, for example, this would update the column headers
   * to reflect the sorting. For many other types of views, this won't be
   * applicable.
   *
   * @param sortingMode  One of nsINavHistoryQueryOptions.SORT_BY_* that
   *                     indicates the new sorting mode.
   *
   * This only is expected to update the sorting UI. invalidateAll() will also
   * get called if the sorting changes to update everything.
   */
  /* void sortingChanged (in PRUint32 sortingMode); */
  NS_IMETHOD SortingChanged(PRUint32 sortingMode) = 0;

  /**
   * Called by the result when this object is set using
   * nsINavHistoryResult.viewer. This will be set to NULL when the result
   * is being deallocated. This should not be set by other code.
   */
  /* attribute nsINavHistoryResult result; */
  NS_IMETHOD GetResult(nsINavHistoryResult * *aResult) = 0;
  NS_IMETHOD SetResult(nsINavHistoryResult * aResult) = 0;

  /**
   * Adds the specified view observer to the view. In ownsWeak is false, then
   * the result will hold a strong reference to the observer. If ownsWeak is
   * true, then the observer must implement nsISupportsWeakReference, and the
   * result will hold a weak reference to the observer.
   */
  /* void addViewObserver (in nsINavHistoryResultViewObserver observer, in boolean ownsWeak); */
  NS_IMETHOD AddViewObserver(nsINavHistoryResultViewObserver *observer, PRBool ownsWeak) = 0;

  /**
   * Removes the specified view observer from this view. This observer must
   * have been previously registered using addViewObserver.
   */
  /* void removeViewObserver (in nsINavHistoryResultViewObserver observer); */
  NS_IMETHOD RemoveViewObserver(nsINavHistoryResultViewObserver *observer) = 0;

};

  NS_DEFINE_STATIC_IID_ACCESSOR(nsINavHistoryResultViewer, NS_INAVHISTORYRESULTVIEWER_IID)

/* Use this macro when declaring classes that implement this interface. */
#define NS_DECL_NSINAVHISTORYRESULTVIEWER \
  NS_IMETHOD ItemInserted(nsINavHistoryContainerResultNode *parent, nsINavHistoryResultNode *item, PRUint32 newIndex); \
  NS_IMETHOD ItemRemoved(nsINavHistoryContainerResultNode *parent, nsINavHistoryResultNode *item, PRUint32 oldIndex); \
  NS_IMETHOD ItemChanged(nsINavHistoryResultNode *item); \
  NS_IMETHOD ItemReplaced(nsINavHistoryContainerResultNode *parent, nsINavHistoryResultNode *oldItem, nsINavHistoryResultNode *newItem, PRUint32 index); \
  NS_IMETHOD ContainerOpened(nsINavHistoryContainerResultNode *item); \
  NS_IMETHOD ContainerClosed(nsINavHistoryContainerResultNode *item); \
  NS_IMETHOD InvalidateContainer(nsINavHistoryContainerResultNode *item); \
  NS_IMETHOD InvalidateAll(void); \
  NS_IMETHOD SortingChanged(PRUint32 sortingMode); \
  NS_IMETHOD GetResult(nsINavHistoryResult * *aResult); \
  NS_IMETHOD SetResult(nsINavHistoryResult * aResult); \
  NS_IMETHOD AddViewObserver(nsINavHistoryResultViewObserver *observer, PRBool ownsWeak); \
  NS_IMETHOD RemoveViewObserver(nsINavHistoryResultViewObserver *observer); 

/* Use this macro to declare functions that forward the behavior of this interface to another object. */
#define NS_FORWARD_NSINAVHISTORYRESULTVIEWER(_to) \
  NS_IMETHOD ItemInserted(nsINavHistoryContainerResultNode *parent, nsINavHistoryResultNode *item, PRUint32 newIndex) { return _to ItemInserted(parent, item, newIndex); } \
  NS_IMETHOD ItemRemoved(nsINavHistoryContainerResultNode *parent, nsINavHistoryResultNode *item, PRUint32 oldIndex) { return _to ItemRemoved(parent, item, oldIndex); } \
  NS_IMETHOD ItemChanged(nsINavHistoryResultNode *item) { return _to ItemChanged(item); } \
  NS_IMETHOD ItemReplaced(nsINavHistoryContainerResultNode *parent, nsINavHistoryResultNode *oldItem, nsINavHistoryResultNode *newItem, PRUint32 index) { return _to ItemReplaced(parent, oldItem, newItem, index); } \
  NS_IMETHOD ContainerOpened(nsINavHistoryContainerResultNode *item) { return _to ContainerOpened(item); } \
  NS_IMETHOD ContainerClosed(nsINavHistoryContainerResultNode *item) { return _to ContainerClosed(item); } \
  NS_IMETHOD InvalidateContainer(nsINavHistoryContainerResultNode *item) { return _to InvalidateContainer(item); } \
  NS_IMETHOD InvalidateAll(void) { return _to InvalidateAll(); } \
  NS_IMETHOD SortingChanged(PRUint32 sortingMode) { return _to SortingChanged(sortingMode); } \
  NS_IMETHOD GetResult(nsINavHistoryResult * *aResult) { return _to GetResult(aResult); } \
  NS_IMETHOD SetResult(nsINavHistoryResult * aResult) { return _to SetResult(aResult); } \
  NS_IMETHOD AddViewObserver(nsINavHistoryResultViewObserver *observer, PRBool ownsWeak) { return _to AddViewObserver(observer, ownsWeak); } \
  NS_IMETHOD RemoveViewObserver(nsINavHistoryResultViewObserver *observer) { return _to RemoveViewObserver(observer); } 

/* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
#define NS_FORWARD_SAFE_NSINAVHISTORYRESULTVIEWER(_to) \
  NS_IMETHOD ItemInserted(nsINavHistoryContainerResultNode *parent, nsINavHistoryResultNode *item, PRUint32 newIndex) { return !_to ? NS_ERROR_NULL_POINTER : _to->ItemInserted(parent, item, newIndex); } \
  NS_IMETHOD ItemRemoved(nsINavHistoryContainerResultNode *parent, nsINavHistoryResultNode *item, PRUint32 oldIndex) { return !_to ? NS_ERROR_NULL_POINTER : _to->ItemRemoved(parent, item, oldIndex); } \
  NS_IMETHOD ItemChanged(nsINavHistoryResultNode *item) { return !_to ? NS_ERROR_NULL_POINTER : _to->ItemChanged(item); } \
  NS_IMETHOD ItemReplaced(nsINavHistoryContainerResultNode *parent, nsINavHistoryResultNode *oldItem, nsINavHistoryResultNode *newItem, PRUint32 index) { return !_to ? NS_ERROR_NULL_POINTER : _to->ItemReplaced(parent, oldItem, newItem, index); } \
  NS_IMETHOD ContainerOpened(nsINavHistoryContainerResultNode *item) { return !_to ? NS_ERROR_NULL_POINTER : _to->ContainerOpened(item); } \
  NS_IMETHOD ContainerClosed(nsINavHistoryContainerResultNode *item) { return !_to ? NS_ERROR_NULL_POINTER : _to->ContainerClosed(item); } \
  NS_IMETHOD InvalidateContainer(nsINavHistoryContainerResultNode *item) { return !_to ? NS_ERROR_NULL_POINTER : _to->InvalidateContainer(item); } \
  NS_IMETHOD InvalidateAll(void) { return !_to ? NS_ERROR_NULL_POINTER : _to->InvalidateAll(); } \
  NS_IMETHOD SortingChanged(PRUint32 sortingMode) { return !_to ? NS_ERROR_NULL_POINTER : _to->SortingChanged(sortingMode); } \
  NS_IMETHOD GetResult(nsINavHistoryResult * *aResult) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetResult(aResult); } \
  NS_IMETHOD SetResult(nsINavHistoryResult * aResult) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetResult(aResult); } \
  NS_IMETHOD AddViewObserver(nsINavHistoryResultViewObserver *observer, PRBool ownsWeak) { return !_to ? NS_ERROR_NULL_POINTER : _to->AddViewObserver(observer, ownsWeak); } \
  NS_IMETHOD RemoveViewObserver(nsINavHistoryResultViewObserver *observer) { return !_to ? NS_ERROR_NULL_POINTER : _to->RemoveViewObserver(observer); } 

#if 0
/* Use the code below as a template for the implementation class for this interface. */

/* Header file */
class nsNavHistoryResultViewer : public nsINavHistoryResultViewer
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSINAVHISTORYRESULTVIEWER

  nsNavHistoryResultViewer();

private:
  ~nsNavHistoryResultViewer();

protected:
  /* additional members */
};

/* Implementation file */
NS_IMPL_ISUPPORTS1(nsNavHistoryResultViewer, nsINavHistoryResultViewer)

nsNavHistoryResultViewer::nsNavHistoryResultViewer()
{
  /* member initializers and constructor code */
}

nsNavHistoryResultViewer::~nsNavHistoryResultViewer()
{
  /* destructor code */
}

/* void itemInserted (in nsINavHistoryContainerResultNode parent, in nsINavHistoryResultNode item, in PRUint32 newIndex); */
NS_IMETHODIMP nsNavHistoryResultViewer::ItemInserted(nsINavHistoryContainerResultNode *parent, nsINavHistoryResultNode *item, PRUint32 newIndex)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void itemRemoved (in nsINavHistoryContainerResultNode parent, in nsINavHistoryResultNode item, in PRUint32 oldIndex); */
NS_IMETHODIMP nsNavHistoryResultViewer::ItemRemoved(nsINavHistoryContainerResultNode *parent, nsINavHistoryResultNode *item, PRUint32 oldIndex)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void itemChanged (in nsINavHistoryResultNode item); */
NS_IMETHODIMP nsNavHistoryResultViewer::ItemChanged(nsINavHistoryResultNode *item)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void itemReplaced (in nsINavHistoryContainerResultNode parent, in nsINavHistoryResultNode oldItem, in nsINavHistoryResultNode newItem, in PRUint32 index); */
NS_IMETHODIMP nsNavHistoryResultViewer::ItemReplaced(nsINavHistoryContainerResultNode *parent, nsINavHistoryResultNode *oldItem, nsINavHistoryResultNode *newItem, PRUint32 index)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void containerOpened (in nsINavHistoryContainerResultNode item); */
NS_IMETHODIMP nsNavHistoryResultViewer::ContainerOpened(nsINavHistoryContainerResultNode *item)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void containerClosed (in nsINavHistoryContainerResultNode item); */
NS_IMETHODIMP nsNavHistoryResultViewer::ContainerClosed(nsINavHistoryContainerResultNode *item)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void invalidateContainer (in nsINavHistoryContainerResultNode item); */
NS_IMETHODIMP nsNavHistoryResultViewer::InvalidateContainer(nsINavHistoryContainerResultNode *item)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void invalidateAll (); */
NS_IMETHODIMP nsNavHistoryResultViewer::InvalidateAll()
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void sortingChanged (in PRUint32 sortingMode); */
NS_IMETHODIMP nsNavHistoryResultViewer::SortingChanged(PRUint32 sortingMode)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute nsINavHistoryResult result; */
NS_IMETHODIMP nsNavHistoryResultViewer::GetResult(nsINavHistoryResult * *aResult)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryResultViewer::SetResult(nsINavHistoryResult * aResult)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void addViewObserver (in nsINavHistoryResultViewObserver observer, in boolean ownsWeak); */
NS_IMETHODIMP nsNavHistoryResultViewer::AddViewObserver(nsINavHistoryResultViewObserver *observer, PRBool ownsWeak)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void removeViewObserver (in nsINavHistoryResultViewObserver observer); */
NS_IMETHODIMP nsNavHistoryResultViewer::RemoveViewObserver(nsINavHistoryResultViewObserver *observer)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* End of implementation class template. */
#endif


/* starting interface:    nsINavHistoryResultTreeViewer */
#define NS_INAVHISTORYRESULTTREEVIEWER_IID_STR "ecd6ad22-8eb0-4824-8a57-5edad9a08ae6"

#define NS_INAVHISTORYRESULTTREEVIEWER_IID \
  {0xecd6ad22, 0x8eb0, 0x4824, \
    { 0x8a, 0x57, 0x5e, 0xda, 0xd9, 0xa0, 0x8a, 0xe6 }}

/**
 * A predefined view adaptor for interfacing results with an nsITree. This
 * object will remove itself from its associated result when the tree has been
 * detached. This prevents circular references. Users should be aware of this,
 * if you want to re-use the same viewer, you will need to keep your own
 * reference to it and re-initialize it when the tree changes. If you use this
 * object, attach it to a result, never attach it to a tree, and forget about
 * it, it will leak!
 */
class NS_NO_VTABLE nsINavHistoryResultTreeViewer : public nsINavHistoryResultViewer {
 public: 

  NS_DECLARE_STATIC_IID_ACCESSOR(NS_INAVHISTORYRESULTTREEVIEWER_IID)

  /**
   * Controls whether duplicate adjacent elements are collapsed into a single
   * item in the tree. This prevents you from seeing multiple entries for
   * things when you have selected to get visits. When you sort by date, the
   * multiple entries will then appear because they will be separated (unless
   * you clicked reload a bunch of times in a row). If you know you'll only
   * ever want one entry per site, you should ask for URIs back instead of
   * visits so it will be more efficient.
   * Default = true
   *
   * Changing this value is somewhat heavyweight since it will force a tree
   * refresh.
   */
  /* attribute boolean collapseDuplicates; */
  NS_IMETHOD GetCollapseDuplicates(PRBool *aCollapseDuplicates) = 0;
  NS_IMETHOD SetCollapseDuplicates(PRBool aCollapseDuplicates) = 0;

  /**
   * This tells you how many items are in the flattened list of results, i.e.
   * how many rows are in this tree right now. The tree adaptor will also
   * QI to nsITreeView, and this will be the same as nsITreeView.rowCount.
   * This is only valid when a tree is attached, the result will be 0 otherwise.
   */
  /* readonly attribute PRUint32 flatItemCount; */
  NS_IMETHOD GetFlatItemCount(PRUint32 *aFlatItemCount) = 0;

  /**
   * This allows you to get at the real node for a given row index. This is
   * only valid when a tree is attached.
   */
  /* nsINavHistoryResultNode nodeForTreeIndex (in PRUint32 aIndex); */
  NS_IMETHOD NodeForTreeIndex(PRUint32 aIndex, nsINavHistoryResultNode **_retval) = 0;

  /**
   * Reverse of nodeForFlatIndex, returns the row index for a given result node.
   * Returns INDEX_INVISIBLE if the item is not visible (for example, its
   * parent is collapsed). This is only valid when a tree is attached. The
   * the result will always be INDEX_INVISIBLE if not.
   * 
   * Note: This sounds sort of obvious, but it got me: aNode must be a node
   *       retrieved from the same result that this viewer is for. If you 
   *       execute another query and get a node from a _different_ result, this 
   *       function will always return the index of that node in the tree that
   *       is attached to that result.
   */
  enum { INDEX_INVISIBLE = 4294967295U };

  /* PRUint32 treeIndexForNode (in nsINavHistoryResultNode aNode); */
  NS_IMETHOD TreeIndexForNode(nsINavHistoryResultNode *aNode, PRUint32 *_retval) = 0;

};

  NS_DEFINE_STATIC_IID_ACCESSOR(nsINavHistoryResultTreeViewer, NS_INAVHISTORYRESULTTREEVIEWER_IID)

/* Use this macro when declaring classes that implement this interface. */
#define NS_DECL_NSINAVHISTORYRESULTTREEVIEWER \
  NS_IMETHOD GetCollapseDuplicates(PRBool *aCollapseDuplicates); \
  NS_IMETHOD SetCollapseDuplicates(PRBool aCollapseDuplicates); \
  NS_IMETHOD GetFlatItemCount(PRUint32 *aFlatItemCount); \
  NS_IMETHOD NodeForTreeIndex(PRUint32 aIndex, nsINavHistoryResultNode **_retval); \
  NS_IMETHOD TreeIndexForNode(nsINavHistoryResultNode *aNode, PRUint32 *_retval); 

/* Use this macro to declare functions that forward the behavior of this interface to another object. */
#define NS_FORWARD_NSINAVHISTORYRESULTTREEVIEWER(_to) \
  NS_IMETHOD GetCollapseDuplicates(PRBool *aCollapseDuplicates) { return _to GetCollapseDuplicates(aCollapseDuplicates); } \
  NS_IMETHOD SetCollapseDuplicates(PRBool aCollapseDuplicates) { return _to SetCollapseDuplicates(aCollapseDuplicates); } \
  NS_IMETHOD GetFlatItemCount(PRUint32 *aFlatItemCount) { return _to GetFlatItemCount(aFlatItemCount); } \
  NS_IMETHOD NodeForTreeIndex(PRUint32 aIndex, nsINavHistoryResultNode **_retval) { return _to NodeForTreeIndex(aIndex, _retval); } \
  NS_IMETHOD TreeIndexForNode(nsINavHistoryResultNode *aNode, PRUint32 *_retval) { return _to TreeIndexForNode(aNode, _retval); } 

/* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
#define NS_FORWARD_SAFE_NSINAVHISTORYRESULTTREEVIEWER(_to) \
  NS_IMETHOD GetCollapseDuplicates(PRBool *aCollapseDuplicates) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetCollapseDuplicates(aCollapseDuplicates); } \
  NS_IMETHOD SetCollapseDuplicates(PRBool aCollapseDuplicates) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetCollapseDuplicates(aCollapseDuplicates); } \
  NS_IMETHOD GetFlatItemCount(PRUint32 *aFlatItemCount) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetFlatItemCount(aFlatItemCount); } \
  NS_IMETHOD NodeForTreeIndex(PRUint32 aIndex, nsINavHistoryResultNode **_retval) { return !_to ? NS_ERROR_NULL_POINTER : _to->NodeForTreeIndex(aIndex, _retval); } \
  NS_IMETHOD TreeIndexForNode(nsINavHistoryResultNode *aNode, PRUint32 *_retval) { return !_to ? NS_ERROR_NULL_POINTER : _to->TreeIndexForNode(aNode, _retval); } 

#if 0
/* Use the code below as a template for the implementation class for this interface. */

/* Header file */
class nsNavHistoryResultTreeViewer : public nsINavHistoryResultTreeViewer
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSINAVHISTORYRESULTTREEVIEWER

  nsNavHistoryResultTreeViewer();

private:
  ~nsNavHistoryResultTreeViewer();

protected:
  /* additional members */
};

/* Implementation file */
NS_IMPL_ISUPPORTS1(nsNavHistoryResultTreeViewer, nsINavHistoryResultTreeViewer)

nsNavHistoryResultTreeViewer::nsNavHistoryResultTreeViewer()
{
  /* member initializers and constructor code */
}

nsNavHistoryResultTreeViewer::~nsNavHistoryResultTreeViewer()
{
  /* destructor code */
}

/* attribute boolean collapseDuplicates; */
NS_IMETHODIMP nsNavHistoryResultTreeViewer::GetCollapseDuplicates(PRBool *aCollapseDuplicates)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryResultTreeViewer::SetCollapseDuplicates(PRBool aCollapseDuplicates)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute PRUint32 flatItemCount; */
NS_IMETHODIMP nsNavHistoryResultTreeViewer::GetFlatItemCount(PRUint32 *aFlatItemCount)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* nsINavHistoryResultNode nodeForTreeIndex (in PRUint32 aIndex); */
NS_IMETHODIMP nsNavHistoryResultTreeViewer::NodeForTreeIndex(PRUint32 aIndex, nsINavHistoryResultNode **_retval)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* PRUint32 treeIndexForNode (in nsINavHistoryResultNode aNode); */
NS_IMETHODIMP nsNavHistoryResultTreeViewer::TreeIndexForNode(nsINavHistoryResultNode *aNode, PRUint32 *_retval)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* End of implementation class template. */
#endif


/* starting interface:    nsINavHistoryResult */
#define NS_INAVHISTORYRESULT_IID_STR "25b45a94-3323-4c7b-910a-315f2c59bfb4"

#define NS_INAVHISTORYRESULT_IID \
  {0x25b45a94, 0x3323, 0x4c7b, \
    { 0x91, 0x0a, 0x31, 0x5f, 0x2c, 0x59, 0xbf, 0xb4 }}

class NS_NO_VTABLE nsINavHistoryResult : public nsISupports {
 public: 

  NS_DECLARE_STATIC_IID_ACCESSOR(NS_INAVHISTORYRESULT_IID)

  /**
 * The result of a history/bookmark query.
 *
 * Use the "root" element to access the children of this query.
 *
 * The basic design of the system is a model-view-controller. This result object
 * represents the model where the data is stored. External components
 * provide the view and controller which define how the data looks and how
 * interaction happens.
 *                           +-- nsINavHistoryResultViewObserver
 *                           |
 *   [RESULT]----->[viewer]----->[controller]
 *             |
 *             +-- nsINavHistoryResultViewer
 *
 * The result indicates to the view when something changes through the
 * nsINavHistoryResultViewer interface. Viewers register themselves through
 * the nsINavHistoryResult.RegisterViewer. The viewer interface would then tell
 * the actual view object what to do. A nsINavHistoryResultTreeViewer is
 * provided which provides pre-packaged interaction with a nsITreeBoxObject.
 * Other views will need to provide their own viewer interfaces.
 *
 * The viewer provides notifications to the controller when view events occur
 * through the nsINavHistoryResultViewObserver interface.
 */
/**
   * Sorts all nodes recursively by the given parameter, one of
   * nsINavHistoryQueryOptions.SORT_BY_*  This will update the corresponding
   * options for this result, so that re-using the current options/queries will
   * always give you the current view.
   */
  /* attribute PRUint32 sortingMode; */
  NS_IMETHOD GetSortingMode(PRUint32 *aSortingMode) = 0;
  NS_IMETHOD SetSortingMode(PRUint32 aSortingMode) = 0;

  /**
   * The viewer for this result (see comment for the class for how these
   * objects are related). This may be null, in which case you can still
   * manually walk the tree using the root node. When this is non-null, you
   * can access the flattened list of items (flatItemCount, nodeForFlatIndex,
   * flatIndexForNode).
   */
  /* attribute nsINavHistoryResultViewer viewer; */
  NS_IMETHOD GetViewer(nsINavHistoryResultViewer * *aViewer) = 0;
  NS_IMETHOD SetViewer(nsINavHistoryResultViewer * aViewer) = 0;

  /**
   * This is the root of the results.  It will either be a
   * nsINavHistoryFolderResultNode (if the query is for bookmarks matching a
   * single folder) or just a nsINavHistoryQueryResultNode (for everything
   * else). Remember that you need to open all containers for their contents 
   * to be valid.
   */
  /* readonly attribute nsINavHistoryQueryResultNode root; */
  NS_IMETHOD GetRoot(nsINavHistoryQueryResultNode * *aRoot) = 0;

};

  NS_DEFINE_STATIC_IID_ACCESSOR(nsINavHistoryResult, NS_INAVHISTORYRESULT_IID)

/* Use this macro when declaring classes that implement this interface. */
#define NS_DECL_NSINAVHISTORYRESULT \
  NS_IMETHOD GetSortingMode(PRUint32 *aSortingMode); \
  NS_IMETHOD SetSortingMode(PRUint32 aSortingMode); \
  NS_IMETHOD GetViewer(nsINavHistoryResultViewer * *aViewer); \
  NS_IMETHOD SetViewer(nsINavHistoryResultViewer * aViewer); \
  NS_IMETHOD GetRoot(nsINavHistoryQueryResultNode * *aRoot); 

/* Use this macro to declare functions that forward the behavior of this interface to another object. */
#define NS_FORWARD_NSINAVHISTORYRESULT(_to) \
  NS_IMETHOD GetSortingMode(PRUint32 *aSortingMode) { return _to GetSortingMode(aSortingMode); } \
  NS_IMETHOD SetSortingMode(PRUint32 aSortingMode) { return _to SetSortingMode(aSortingMode); } \
  NS_IMETHOD GetViewer(nsINavHistoryResultViewer * *aViewer) { return _to GetViewer(aViewer); } \
  NS_IMETHOD SetViewer(nsINavHistoryResultViewer * aViewer) { return _to SetViewer(aViewer); } \
  NS_IMETHOD GetRoot(nsINavHistoryQueryResultNode * *aRoot) { return _to GetRoot(aRoot); } 

/* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
#define NS_FORWARD_SAFE_NSINAVHISTORYRESULT(_to) \
  NS_IMETHOD GetSortingMode(PRUint32 *aSortingMode) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetSortingMode(aSortingMode); } \
  NS_IMETHOD SetSortingMode(PRUint32 aSortingMode) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetSortingMode(aSortingMode); } \
  NS_IMETHOD GetViewer(nsINavHistoryResultViewer * *aViewer) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetViewer(aViewer); } \
  NS_IMETHOD SetViewer(nsINavHistoryResultViewer * aViewer) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetViewer(aViewer); } \
  NS_IMETHOD GetRoot(nsINavHistoryQueryResultNode * *aRoot) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetRoot(aRoot); } 

#if 0
/* Use the code below as a template for the implementation class for this interface. */

/* Header file */
class nsNavHistoryResult : public nsINavHistoryResult
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSINAVHISTORYRESULT

  nsNavHistoryResult();

private:
  ~nsNavHistoryResult();

protected:
  /* additional members */
};

/* Implementation file */
NS_IMPL_ISUPPORTS1(nsNavHistoryResult, nsINavHistoryResult)

nsNavHistoryResult::nsNavHistoryResult()
{
  /* member initializers and constructor code */
}

nsNavHistoryResult::~nsNavHistoryResult()
{
  /* destructor code */
}

/* attribute PRUint32 sortingMode; */
NS_IMETHODIMP nsNavHistoryResult::GetSortingMode(PRUint32 *aSortingMode)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryResult::SetSortingMode(PRUint32 aSortingMode)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute nsINavHistoryResultViewer viewer; */
NS_IMETHODIMP nsNavHistoryResult::GetViewer(nsINavHistoryResultViewer * *aViewer)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryResult::SetViewer(nsINavHistoryResultViewer * aViewer)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute nsINavHistoryQueryResultNode root; */
NS_IMETHODIMP nsNavHistoryResult::GetRoot(nsINavHistoryQueryResultNode * *aRoot)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* End of implementation class template. */
#endif


/* starting interface:    nsINavHistoryObserver */
#define NS_INAVHISTORYOBSERVER_IID_STR "849e2184-3dee-416f-91cd-6a619ca49d1c"

#define NS_INAVHISTORYOBSERVER_IID \
  {0x849e2184, 0x3dee, 0x416f, \
    { 0x91, 0xcd, 0x6a, 0x61, 0x9c, 0xa4, 0x9d, 0x1c }}

/**
 * Similar to nsIRDFObserver for history. Note that we don't pass the data
 * source since that is always the global history.
 *
 * DANGER! If you are in the middle of a batch transaction, there may be a
 * database transaction active. You can still access the DB, but be careful.
 */
class NS_NO_VTABLE nsINavHistoryObserver : public nsISupports {
 public: 

  NS_DECLARE_STATIC_IID_ACCESSOR(NS_INAVHISTORYOBSERVER_IID)

  /**
   * Notifies you that a bunch of things are about to change, don't do any
   * heavy-duty processing until onEndUpdateBatch is called.
   */
  /* void onBeginUpdateBatch (); */
  NS_IMETHOD OnBeginUpdateBatch(void) = 0;

  /**
   * Notifies you that we are done doing a bunch of things and you should go
   * ahead and update UI, etc.
   */
  /* void onEndUpdateBatch (); */
  NS_IMETHOD OnEndUpdateBatch(void) = 0;

  /**
   * Called when a resource is visited. This is called the first time a
   * resource (page, image, etc.) is seen as well as every subsequent time.
   *
   * Normally, transition types of TRANSITION_EMBED (corresponding to images in
   * a page, for example) are not displayed in history results (unless
   * includeHidden is set). Many observers can ignore _EMBED notifications
   * (which will comprise the majority of visit notifications) to save work.
   *
   * @param aVisitID        ID of the visit that was just created.
   * @param aTime           Time of the visit
   * @param aSessionID      The ID of one connected sequence of visits.
   * @param aReferringID    The ID of the visit the user came from. 0 if empty.
   * @param aTransitionType One of nsINavHistory.TRANSITION_*
   */
  /* void onVisit (in nsIURI aURI, in PRInt64 aVisitID, in PRTime aTime, in PRInt64 aSessionID, in PRInt64 aReferringID, in PRUint32 aTransitionType); */
  NS_IMETHOD OnVisit(nsIURI *aURI, PRInt64 aVisitID, PRTime aTime, PRInt64 aSessionID, PRInt64 aReferringID, PRUint32 aTransitionType) = 0;

  /**
   * Called whenever either the "real" title or the custom title of the page
   * changed. BOTH TITLES ARE ALWAYS INCLUDED in this notification, even though
   * only one will change at a time. Often, consumers will want to display the
   * user title if it is available, and fall back to the page title (the one
   * specified in the <title> tag of the page).
   *
   * Note that there is a difference between an empty title and a NULL title.
   * An empty string means that somebody specifically set the title to be
   * nothing. NULL means nobody set it. From C++: use IsVoid() and SetIsVoid()
   * to see whether an empty string is "null" or not (it will always be an
   * empty string in either case).
   *
   * @param aUserTitleChanged Is true if the user title was the thing that was
   *                          changed. If false, that means the "real" page
   *                          title was changed instead.
   */
  /* void onTitleChanged (in nsIURI aURI, in AString aPageTitle, in AString aUserTitle, in PRBool aUserTitleChanged); */
  NS_IMETHOD OnTitleChanged(nsIURI *aURI, const nsAString & aPageTitle, const nsAString & aUserTitle, PRBool aUserTitleChanged) = 0;

  /**
   * This page and all of its visits are being deleted. Note: the page may not
   * necessarily have actually existed for this function to be called.
   *
   * Delete notifications are only 99.99% accurate. Batch delete operations
   * must be done in two steps, so first come notifications, then a bulk
   * delete. If there is some error in the middle (for example, out of memory)
   * then you'll get a notification and it won't get deleted. There's no easy
   * way around this.
   */
  /* void onDeleteURI (in nsIURI aURI); */
  NS_IMETHOD OnDeleteURI(nsIURI *aURI) = 0;

  /**
   * Notification that all of history is being deleted.
   */
  /* void onClearHistory (); */
  NS_IMETHOD OnClearHistory(void) = 0;

  /**
   * A page has had some attribute on it changed. Note that for TYPED and
   * HIDDEN, the page may not necessarily have been added yet.
   */
  enum { ATTRIBUTE_FAVICON = 3U };

  /* void onPageChanged (in nsIURI aURI, in PRUint32 aWhat, in AString aValue); */
  NS_IMETHOD OnPageChanged(nsIURI *aURI, PRUint32 aWhat, const nsAString & aValue) = 0;

  /**
   * Called when a history entry expires. You will recieve notifications that
   * a specific visit has expired with the time of that visit. When the last
   * visit for a history entry expires, the history entry itself is deleted
   * and aWholeEntry is set. (If your observer only cares about URLs and not
   * specific visits, it needs only to listen for aWholeEntry notifications).
   *
   * It is possible for a history entry to be deleted that has no visits if
   * something is out of sync or after a bookmark is deleted that has no
   * visits (thus freeing the history entry). In these cases, aVisitTime will
   * be 0.
   */
  /* void onPageExpired (in nsIURI aURI, in PRTime aVisitTime, in boolean aWholeEntry); */
  NS_IMETHOD OnPageExpired(nsIURI *aURI, PRTime aVisitTime, PRBool aWholeEntry) = 0;

};

  NS_DEFINE_STATIC_IID_ACCESSOR(nsINavHistoryObserver, NS_INAVHISTORYOBSERVER_IID)

/* Use this macro when declaring classes that implement this interface. */
#define NS_DECL_NSINAVHISTORYOBSERVER \
  NS_IMETHOD OnBeginUpdateBatch(void); \
  NS_IMETHOD OnEndUpdateBatch(void); \
  NS_IMETHOD OnVisit(nsIURI *aURI, PRInt64 aVisitID, PRTime aTime, PRInt64 aSessionID, PRInt64 aReferringID, PRUint32 aTransitionType); \
  NS_IMETHOD OnTitleChanged(nsIURI *aURI, const nsAString & aPageTitle, const nsAString & aUserTitle, PRBool aUserTitleChanged); \
  NS_IMETHOD OnDeleteURI(nsIURI *aURI); \
  NS_IMETHOD OnClearHistory(void); \
  NS_IMETHOD OnPageChanged(nsIURI *aURI, PRUint32 aWhat, const nsAString & aValue); \
  NS_IMETHOD OnPageExpired(nsIURI *aURI, PRTime aVisitTime, PRBool aWholeEntry); 

/* Use this macro to declare functions that forward the behavior of this interface to another object. */
#define NS_FORWARD_NSINAVHISTORYOBSERVER(_to) \
  NS_IMETHOD OnBeginUpdateBatch(void) { return _to OnBeginUpdateBatch(); } \
  NS_IMETHOD OnEndUpdateBatch(void) { return _to OnEndUpdateBatch(); } \
  NS_IMETHOD OnVisit(nsIURI *aURI, PRInt64 aVisitID, PRTime aTime, PRInt64 aSessionID, PRInt64 aReferringID, PRUint32 aTransitionType) { return _to OnVisit(aURI, aVisitID, aTime, aSessionID, aReferringID, aTransitionType); } \
  NS_IMETHOD OnTitleChanged(nsIURI *aURI, const nsAString & aPageTitle, const nsAString & aUserTitle, PRBool aUserTitleChanged) { return _to OnTitleChanged(aURI, aPageTitle, aUserTitle, aUserTitleChanged); } \
  NS_IMETHOD OnDeleteURI(nsIURI *aURI) { return _to OnDeleteURI(aURI); } \
  NS_IMETHOD OnClearHistory(void) { return _to OnClearHistory(); } \
  NS_IMETHOD OnPageChanged(nsIURI *aURI, PRUint32 aWhat, const nsAString & aValue) { return _to OnPageChanged(aURI, aWhat, aValue); } \
  NS_IMETHOD OnPageExpired(nsIURI *aURI, PRTime aVisitTime, PRBool aWholeEntry) { return _to OnPageExpired(aURI, aVisitTime, aWholeEntry); } 

/* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
#define NS_FORWARD_SAFE_NSINAVHISTORYOBSERVER(_to) \
  NS_IMETHOD OnBeginUpdateBatch(void) { return !_to ? NS_ERROR_NULL_POINTER : _to->OnBeginUpdateBatch(); } \
  NS_IMETHOD OnEndUpdateBatch(void) { return !_to ? NS_ERROR_NULL_POINTER : _to->OnEndUpdateBatch(); } \
  NS_IMETHOD OnVisit(nsIURI *aURI, PRInt64 aVisitID, PRTime aTime, PRInt64 aSessionID, PRInt64 aReferringID, PRUint32 aTransitionType) { return !_to ? NS_ERROR_NULL_POINTER : _to->OnVisit(aURI, aVisitID, aTime, aSessionID, aReferringID, aTransitionType); } \
  NS_IMETHOD OnTitleChanged(nsIURI *aURI, const nsAString & aPageTitle, const nsAString & aUserTitle, PRBool aUserTitleChanged) { return !_to ? NS_ERROR_NULL_POINTER : _to->OnTitleChanged(aURI, aPageTitle, aUserTitle, aUserTitleChanged); } \
  NS_IMETHOD OnDeleteURI(nsIURI *aURI) { return !_to ? NS_ERROR_NULL_POINTER : _to->OnDeleteURI(aURI); } \
  NS_IMETHOD OnClearHistory(void) { return !_to ? NS_ERROR_NULL_POINTER : _to->OnClearHistory(); } \
  NS_IMETHOD OnPageChanged(nsIURI *aURI, PRUint32 aWhat, const nsAString & aValue) { return !_to ? NS_ERROR_NULL_POINTER : _to->OnPageChanged(aURI, aWhat, aValue); } \
  NS_IMETHOD OnPageExpired(nsIURI *aURI, PRTime aVisitTime, PRBool aWholeEntry) { return !_to ? NS_ERROR_NULL_POINTER : _to->OnPageExpired(aURI, aVisitTime, aWholeEntry); } 

#if 0
/* Use the code below as a template for the implementation class for this interface. */

/* Header file */
class nsNavHistoryObserver : public nsINavHistoryObserver
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSINAVHISTORYOBSERVER

  nsNavHistoryObserver();

private:
  ~nsNavHistoryObserver();

protected:
  /* additional members */
};

/* Implementation file */
NS_IMPL_ISUPPORTS1(nsNavHistoryObserver, nsINavHistoryObserver)

nsNavHistoryObserver::nsNavHistoryObserver()
{
  /* member initializers and constructor code */
}

nsNavHistoryObserver::~nsNavHistoryObserver()
{
  /* destructor code */
}

/* void onBeginUpdateBatch (); */
NS_IMETHODIMP nsNavHistoryObserver::OnBeginUpdateBatch()
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void onEndUpdateBatch (); */
NS_IMETHODIMP nsNavHistoryObserver::OnEndUpdateBatch()
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void onVisit (in nsIURI aURI, in PRInt64 aVisitID, in PRTime aTime, in PRInt64 aSessionID, in PRInt64 aReferringID, in PRUint32 aTransitionType); */
NS_IMETHODIMP nsNavHistoryObserver::OnVisit(nsIURI *aURI, PRInt64 aVisitID, PRTime aTime, PRInt64 aSessionID, PRInt64 aReferringID, PRUint32 aTransitionType)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void onTitleChanged (in nsIURI aURI, in AString aPageTitle, in AString aUserTitle, in PRBool aUserTitleChanged); */
NS_IMETHODIMP nsNavHistoryObserver::OnTitleChanged(nsIURI *aURI, const nsAString & aPageTitle, const nsAString & aUserTitle, PRBool aUserTitleChanged)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void onDeleteURI (in nsIURI aURI); */
NS_IMETHODIMP nsNavHistoryObserver::OnDeleteURI(nsIURI *aURI)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void onClearHistory (); */
NS_IMETHODIMP nsNavHistoryObserver::OnClearHistory()
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void onPageChanged (in nsIURI aURI, in PRUint32 aWhat, in AString aValue); */
NS_IMETHODIMP nsNavHistoryObserver::OnPageChanged(nsIURI *aURI, PRUint32 aWhat, const nsAString & aValue)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void onPageExpired (in nsIURI aURI, in PRTime aVisitTime, in boolean aWholeEntry); */
NS_IMETHODIMP nsNavHistoryObserver::OnPageExpired(nsIURI *aURI, PRTime aVisitTime, PRBool aWholeEntry)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* End of implementation class template. */
#endif


/* starting interface:    nsINavHistoryQuery */
#define NS_INAVHISTORYQUERY_IID_STR "884819a6-1860-4a71-8fd7-89d962c1d984"

#define NS_INAVHISTORYQUERY_IID \
  {0x884819a6, 0x1860, 0x4a71, \
    { 0x8f, 0xd7, 0x89, 0xd9, 0x62, 0xc1, 0xd9, 0x84 }}

class NS_NO_VTABLE nsINavHistoryQuery : public nsISupports {
 public: 

  NS_DECLARE_STATIC_IID_ACCESSOR(NS_INAVHISTORYQUERY_IID)

  /**
 * This object encapsulates all the query parameters you're likely to need
 * when building up history UI. All parameters are ANDed together.
 *
 * This is not intended to be a super-general query mechanism. This was designed
 * so that most queries can be done in only one SQL query. This is important
 * because, if the user has their profile on a networked drive, query latency
 * can be non-negligible.
 */
/**
   * Time range for results (INCLUSIVE). The *TimeReference is one of the
   * constants TIME_RELATIVE_* which indicates how to interpret the
   * corresponding time value.
   *   TIME_RELATIVE_EPOCH (default):
   *     The time is relative to Jan 1 1970 GMT, (this is a normal PRTime)
   *   TIME_RELATIVE_TODAY:
   *     The time is relative to this morning at midnight. Normally used for
   *     queries relative to today. For example, a "past week" query would be
   *     today-6 days -> today+1 day
   *   TIME_RELATIVE_NOW:
   *     The time is relative to right now.
   *
   * Note: PRTime is in MICROseconds since 1 Jan 1970. Javascript date objects
   * are expressed in MILLIseconds since 1 Jan 1970.
   *
   * As a special case, a 0 time relative to TIME_RELATIVE_EPOCH indicates that
   * the time is not part of the query. This is the default, so an empty query
   * will match any time. The has* functions return whether the corresponding
   * time is considered.
   *
   * You can read absolute*Time to get the time value that the currently loaded
   * reference points + offset resolve to.
   */
  enum { TIME_RELATIVE_EPOCH = 0U };

  enum { TIME_RELATIVE_TODAY = 1U };

  enum { TIME_RELATIVE_NOW = 2U };

  /* attribute PRTime beginTime; */
  NS_IMETHOD GetBeginTime(PRTime *aBeginTime) = 0;
  NS_IMETHOD SetBeginTime(PRTime aBeginTime) = 0;

  /* attribute PRUint32 beginTimeReference; */
  NS_IMETHOD GetBeginTimeReference(PRUint32 *aBeginTimeReference) = 0;
  NS_IMETHOD SetBeginTimeReference(PRUint32 aBeginTimeReference) = 0;

  /* readonly attribute boolean hasBeginTime; */
  NS_IMETHOD GetHasBeginTime(PRBool *aHasBeginTime) = 0;

  /* readonly attribute PRTime absoluteBeginTime; */
  NS_IMETHOD GetAbsoluteBeginTime(PRTime *aAbsoluteBeginTime) = 0;

  /* attribute PRTime endTime; */
  NS_IMETHOD GetEndTime(PRTime *aEndTime) = 0;
  NS_IMETHOD SetEndTime(PRTime aEndTime) = 0;

  /* attribute PRUint32 endTimeReference; */
  NS_IMETHOD GetEndTimeReference(PRUint32 *aEndTimeReference) = 0;
  NS_IMETHOD SetEndTimeReference(PRUint32 aEndTimeReference) = 0;

  /* readonly attribute boolean hasEndTime; */
  NS_IMETHOD GetHasEndTime(PRBool *aHasEndTime) = 0;

  /* readonly attribute PRTime absoluteEndTime; */
  NS_IMETHOD GetAbsoluteEndTime(PRTime *aAbsoluteEndTime) = 0;

  /**
   * Text search terms.
   */
  /* attribute AString searchTerms; */
  NS_IMETHOD GetSearchTerms(nsAString & aSearchTerms) = 0;
  NS_IMETHOD SetSearchTerms(const nsAString & aSearchTerms) = 0;

  /* readonly attribute boolean hasSearchTerms; */
  NS_IMETHOD GetHasSearchTerms(PRBool *aHasSearchTerms) = 0;

  /**
   * When set, returns only bookmarked items, when unset, returns anything. Setting this
   * is equivalent to listing all bookmark folders in the 'folders' parameter.
   */
  /* attribute boolean onlyBookmarked; */
  NS_IMETHOD GetOnlyBookmarked(PRBool *aOnlyBookmarked) = 0;
  NS_IMETHOD SetOnlyBookmarked(PRBool aOnlyBookmarked) = 0;

  /**
   * This controls the meaning of 'domain', and whether it is an exact match
   * 'domainIsHost' = true, or hierarchical (= false).
   */
  /* attribute boolean domainIsHost; */
  NS_IMETHOD GetDomainIsHost(PRBool *aDomainIsHost) = 0;
  NS_IMETHOD SetDomainIsHost(PRBool aDomainIsHost) = 0;

  /**
   * This is the host or domain name (controlled by domainIsHost). When
   * domainIsHost, domain only does exact matching on host names. Otherwise,
   * it will return anything whose host name ends in 'domain'.
   *
   * This one is a little different than most. Setting it to an empty string
   * is a real query and will match any URI that has no host name (local files
   * and such). Set this to NULL (in C++ use SetIsVoid) if you don't want
   * domain matching.
   */
  /* attribute AUTF8String domain; */
  NS_IMETHOD GetDomain(nsACString & aDomain) = 0;
  NS_IMETHOD SetDomain(const nsACString & aDomain) = 0;

  /* readonly attribute boolean hasDomain; */
  NS_IMETHOD GetHasDomain(PRBool *aHasDomain) = 0;

  /**
   * Controls the interpretation of 'uri'. When unset (default), the URI will
   * request an exact match of the specified URI. When set, any history entry
   * beginning in 'uri' will match. For example "http://bar.com/foo" will match
   * "http://bar.com/foo" as well as "http://bar.com/foo/baz.gif".
   */
  /* attribute boolean uriIsPrefix; */
  NS_IMETHOD GetUriIsPrefix(PRBool *aUriIsPrefix) = 0;
  NS_IMETHOD SetUriIsPrefix(PRBool aUriIsPrefix) = 0;

  /**
   * This is a URI to match, to, for example, find out every time you visited
   * a given URI. Use uriIsPrefix to control whether this is an exact match.
   */
  /* attribute nsIURI uri; */
  NS_IMETHOD GetUri(nsIURI * *aUri) = 0;
  NS_IMETHOD SetUri(nsIURI * aUri) = 0;

  /* readonly attribute boolean hasUri; */
  NS_IMETHOD GetHasUri(PRBool *aHasUri) = 0;

  /**
   * Test for existance or non-existance of a given annotation. We don't
   * currently support >1 annotation name per query. If 'annotationIsNot' is
   * true, we test for the non-existance of the specified annotation.
   *
   * Testing for not annotation will do the same thing as a normal query and
   * remove everything that doesn't have that annotation. Asking for things
   * that DO have a given annotation is a little different. It also includes
   * things that have never been visited. This allows place queries to be
   * returned (which might include bookmark folders -- use the bookmark
   * service's GetFolderURI) as well as anything else that may have been
   * tagged with an annotation. This will only work for RESULTS_AS_URI since
   * there will be no visits for these items.
   */
  /* attribute boolean annotationIsNot; */
  NS_IMETHOD GetAnnotationIsNot(PRBool *aAnnotationIsNot) = 0;
  NS_IMETHOD SetAnnotationIsNot(PRBool aAnnotationIsNot) = 0;

  /* attribute AUTF8String annotation; */
  NS_IMETHOD GetAnnotation(nsACString & aAnnotation) = 0;
  NS_IMETHOD SetAnnotation(const nsACString & aAnnotation) = 0;

  /* readonly attribute boolean hasAnnotation; */
  NS_IMETHOD GetHasAnnotation(PRBool *aHasAnnotation) = 0;

  /**
   * Limit results to items that are in all of the given folders.
   */
  /* void getFolders (out PRUint32 count, [array, size_is (count), retval] out PRInt64 folders); */
  NS_IMETHOD GetFolders(PRUint32 *count, PRInt64 **folders) = 0;

  /* readonly attribute PRUint32 folderCount; */
  NS_IMETHOD GetFolderCount(PRUint32 *aFolderCount) = 0;

  /* void setFolders ([array, size_is (folderCount), const] in PRInt64 folders, in PRUint32 folderCount); */
  NS_IMETHOD SetFolders(const PRInt64 *folders, PRUint32 folderCount) = 0;

  /**
   * Creates a new query item with the same parameters of this one.
   */
  /* nsINavHistoryQuery clone (); */
  NS_IMETHOD Clone(nsINavHistoryQuery **_retval) = 0;

};

  NS_DEFINE_STATIC_IID_ACCESSOR(nsINavHistoryQuery, NS_INAVHISTORYQUERY_IID)

/* Use this macro when declaring classes that implement this interface. */
#define NS_DECL_NSINAVHISTORYQUERY \
  NS_IMETHOD GetBeginTime(PRTime *aBeginTime); \
  NS_IMETHOD SetBeginTime(PRTime aBeginTime); \
  NS_IMETHOD GetBeginTimeReference(PRUint32 *aBeginTimeReference); \
  NS_IMETHOD SetBeginTimeReference(PRUint32 aBeginTimeReference); \
  NS_IMETHOD GetHasBeginTime(PRBool *aHasBeginTime); \
  NS_IMETHOD GetAbsoluteBeginTime(PRTime *aAbsoluteBeginTime); \
  NS_IMETHOD GetEndTime(PRTime *aEndTime); \
  NS_IMETHOD SetEndTime(PRTime aEndTime); \
  NS_IMETHOD GetEndTimeReference(PRUint32 *aEndTimeReference); \
  NS_IMETHOD SetEndTimeReference(PRUint32 aEndTimeReference); \
  NS_IMETHOD GetHasEndTime(PRBool *aHasEndTime); \
  NS_IMETHOD GetAbsoluteEndTime(PRTime *aAbsoluteEndTime); \
  NS_IMETHOD GetSearchTerms(nsAString & aSearchTerms); \
  NS_IMETHOD SetSearchTerms(const nsAString & aSearchTerms); \
  NS_IMETHOD GetHasSearchTerms(PRBool *aHasSearchTerms); \
  NS_IMETHOD GetOnlyBookmarked(PRBool *aOnlyBookmarked); \
  NS_IMETHOD SetOnlyBookmarked(PRBool aOnlyBookmarked); \
  NS_IMETHOD GetDomainIsHost(PRBool *aDomainIsHost); \
  NS_IMETHOD SetDomainIsHost(PRBool aDomainIsHost); \
  NS_IMETHOD GetDomain(nsACString & aDomain); \
  NS_IMETHOD SetDomain(const nsACString & aDomain); \
  NS_IMETHOD GetHasDomain(PRBool *aHasDomain); \
  NS_IMETHOD GetUriIsPrefix(PRBool *aUriIsPrefix); \
  NS_IMETHOD SetUriIsPrefix(PRBool aUriIsPrefix); \
  NS_IMETHOD GetUri(nsIURI * *aUri); \
  NS_IMETHOD SetUri(nsIURI * aUri); \
  NS_IMETHOD GetHasUri(PRBool *aHasUri); \
  NS_IMETHOD GetAnnotationIsNot(PRBool *aAnnotationIsNot); \
  NS_IMETHOD SetAnnotationIsNot(PRBool aAnnotationIsNot); \
  NS_IMETHOD GetAnnotation(nsACString & aAnnotation); \
  NS_IMETHOD SetAnnotation(const nsACString & aAnnotation); \
  NS_IMETHOD GetHasAnnotation(PRBool *aHasAnnotation); \
  NS_IMETHOD GetFolders(PRUint32 *count, PRInt64 **folders); \
  NS_IMETHOD GetFolderCount(PRUint32 *aFolderCount); \
  NS_IMETHOD SetFolders(const PRInt64 *folders, PRUint32 folderCount); \
  NS_IMETHOD Clone(nsINavHistoryQuery **_retval); 

/* Use this macro to declare functions that forward the behavior of this interface to another object. */
#define NS_FORWARD_NSINAVHISTORYQUERY(_to) \
  NS_IMETHOD GetBeginTime(PRTime *aBeginTime) { return _to GetBeginTime(aBeginTime); } \
  NS_IMETHOD SetBeginTime(PRTime aBeginTime) { return _to SetBeginTime(aBeginTime); } \
  NS_IMETHOD GetBeginTimeReference(PRUint32 *aBeginTimeReference) { return _to GetBeginTimeReference(aBeginTimeReference); } \
  NS_IMETHOD SetBeginTimeReference(PRUint32 aBeginTimeReference) { return _to SetBeginTimeReference(aBeginTimeReference); } \
  NS_IMETHOD GetHasBeginTime(PRBool *aHasBeginTime) { return _to GetHasBeginTime(aHasBeginTime); } \
  NS_IMETHOD GetAbsoluteBeginTime(PRTime *aAbsoluteBeginTime) { return _to GetAbsoluteBeginTime(aAbsoluteBeginTime); } \
  NS_IMETHOD GetEndTime(PRTime *aEndTime) { return _to GetEndTime(aEndTime); } \
  NS_IMETHOD SetEndTime(PRTime aEndTime) { return _to SetEndTime(aEndTime); } \
  NS_IMETHOD GetEndTimeReference(PRUint32 *aEndTimeReference) { return _to GetEndTimeReference(aEndTimeReference); } \
  NS_IMETHOD SetEndTimeReference(PRUint32 aEndTimeReference) { return _to SetEndTimeReference(aEndTimeReference); } \
  NS_IMETHOD GetHasEndTime(PRBool *aHasEndTime) { return _to GetHasEndTime(aHasEndTime); } \
  NS_IMETHOD GetAbsoluteEndTime(PRTime *aAbsoluteEndTime) { return _to GetAbsoluteEndTime(aAbsoluteEndTime); } \
  NS_IMETHOD GetSearchTerms(nsAString & aSearchTerms) { return _to GetSearchTerms(aSearchTerms); } \
  NS_IMETHOD SetSearchTerms(const nsAString & aSearchTerms) { return _to SetSearchTerms(aSearchTerms); } \
  NS_IMETHOD GetHasSearchTerms(PRBool *aHasSearchTerms) { return _to GetHasSearchTerms(aHasSearchTerms); } \
  NS_IMETHOD GetOnlyBookmarked(PRBool *aOnlyBookmarked) { return _to GetOnlyBookmarked(aOnlyBookmarked); } \
  NS_IMETHOD SetOnlyBookmarked(PRBool aOnlyBookmarked) { return _to SetOnlyBookmarked(aOnlyBookmarked); } \
  NS_IMETHOD GetDomainIsHost(PRBool *aDomainIsHost) { return _to GetDomainIsHost(aDomainIsHost); } \
  NS_IMETHOD SetDomainIsHost(PRBool aDomainIsHost) { return _to SetDomainIsHost(aDomainIsHost); } \
  NS_IMETHOD GetDomain(nsACString & aDomain) { return _to GetDomain(aDomain); } \
  NS_IMETHOD SetDomain(const nsACString & aDomain) { return _to SetDomain(aDomain); } \
  NS_IMETHOD GetHasDomain(PRBool *aHasDomain) { return _to GetHasDomain(aHasDomain); } \
  NS_IMETHOD GetUriIsPrefix(PRBool *aUriIsPrefix) { return _to GetUriIsPrefix(aUriIsPrefix); } \
  NS_IMETHOD SetUriIsPrefix(PRBool aUriIsPrefix) { return _to SetUriIsPrefix(aUriIsPrefix); } \
  NS_IMETHOD GetUri(nsIURI * *aUri) { return _to GetUri(aUri); } \
  NS_IMETHOD SetUri(nsIURI * aUri) { return _to SetUri(aUri); } \
  NS_IMETHOD GetHasUri(PRBool *aHasUri) { return _to GetHasUri(aHasUri); } \
  NS_IMETHOD GetAnnotationIsNot(PRBool *aAnnotationIsNot) { return _to GetAnnotationIsNot(aAnnotationIsNot); } \
  NS_IMETHOD SetAnnotationIsNot(PRBool aAnnotationIsNot) { return _to SetAnnotationIsNot(aAnnotationIsNot); } \
  NS_IMETHOD GetAnnotation(nsACString & aAnnotation) { return _to GetAnnotation(aAnnotation); } \
  NS_IMETHOD SetAnnotation(const nsACString & aAnnotation) { return _to SetAnnotation(aAnnotation); } \
  NS_IMETHOD GetHasAnnotation(PRBool *aHasAnnotation) { return _to GetHasAnnotation(aHasAnnotation); } \
  NS_IMETHOD GetFolders(PRUint32 *count, PRInt64 **folders) { return _to GetFolders(count, folders); } \
  NS_IMETHOD GetFolderCount(PRUint32 *aFolderCount) { return _to GetFolderCount(aFolderCount); } \
  NS_IMETHOD SetFolders(const PRInt64 *folders, PRUint32 folderCount) { return _to SetFolders(folders, folderCount); } \
  NS_IMETHOD Clone(nsINavHistoryQuery **_retval) { return _to Clone(_retval); } 

/* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
#define NS_FORWARD_SAFE_NSINAVHISTORYQUERY(_to) \
  NS_IMETHOD GetBeginTime(PRTime *aBeginTime) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetBeginTime(aBeginTime); } \
  NS_IMETHOD SetBeginTime(PRTime aBeginTime) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetBeginTime(aBeginTime); } \
  NS_IMETHOD GetBeginTimeReference(PRUint32 *aBeginTimeReference) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetBeginTimeReference(aBeginTimeReference); } \
  NS_IMETHOD SetBeginTimeReference(PRUint32 aBeginTimeReference) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetBeginTimeReference(aBeginTimeReference); } \
  NS_IMETHOD GetHasBeginTime(PRBool *aHasBeginTime) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetHasBeginTime(aHasBeginTime); } \
  NS_IMETHOD GetAbsoluteBeginTime(PRTime *aAbsoluteBeginTime) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetAbsoluteBeginTime(aAbsoluteBeginTime); } \
  NS_IMETHOD GetEndTime(PRTime *aEndTime) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetEndTime(aEndTime); } \
  NS_IMETHOD SetEndTime(PRTime aEndTime) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetEndTime(aEndTime); } \
  NS_IMETHOD GetEndTimeReference(PRUint32 *aEndTimeReference) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetEndTimeReference(aEndTimeReference); } \
  NS_IMETHOD SetEndTimeReference(PRUint32 aEndTimeReference) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetEndTimeReference(aEndTimeReference); } \
  NS_IMETHOD GetHasEndTime(PRBool *aHasEndTime) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetHasEndTime(aHasEndTime); } \
  NS_IMETHOD GetAbsoluteEndTime(PRTime *aAbsoluteEndTime) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetAbsoluteEndTime(aAbsoluteEndTime); } \
  NS_IMETHOD GetSearchTerms(nsAString & aSearchTerms) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetSearchTerms(aSearchTerms); } \
  NS_IMETHOD SetSearchTerms(const nsAString & aSearchTerms) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetSearchTerms(aSearchTerms); } \
  NS_IMETHOD GetHasSearchTerms(PRBool *aHasSearchTerms) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetHasSearchTerms(aHasSearchTerms); } \
  NS_IMETHOD GetOnlyBookmarked(PRBool *aOnlyBookmarked) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetOnlyBookmarked(aOnlyBookmarked); } \
  NS_IMETHOD SetOnlyBookmarked(PRBool aOnlyBookmarked) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetOnlyBookmarked(aOnlyBookmarked); } \
  NS_IMETHOD GetDomainIsHost(PRBool *aDomainIsHost) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetDomainIsHost(aDomainIsHost); } \
  NS_IMETHOD SetDomainIsHost(PRBool aDomainIsHost) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetDomainIsHost(aDomainIsHost); } \
  NS_IMETHOD GetDomain(nsACString & aDomain) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetDomain(aDomain); } \
  NS_IMETHOD SetDomain(const nsACString & aDomain) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetDomain(aDomain); } \
  NS_IMETHOD GetHasDomain(PRBool *aHasDomain) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetHasDomain(aHasDomain); } \
  NS_IMETHOD GetUriIsPrefix(PRBool *aUriIsPrefix) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetUriIsPrefix(aUriIsPrefix); } \
  NS_IMETHOD SetUriIsPrefix(PRBool aUriIsPrefix) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetUriIsPrefix(aUriIsPrefix); } \
  NS_IMETHOD GetUri(nsIURI * *aUri) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetUri(aUri); } \
  NS_IMETHOD SetUri(nsIURI * aUri) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetUri(aUri); } \
  NS_IMETHOD GetHasUri(PRBool *aHasUri) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetHasUri(aHasUri); } \
  NS_IMETHOD GetAnnotationIsNot(PRBool *aAnnotationIsNot) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetAnnotationIsNot(aAnnotationIsNot); } \
  NS_IMETHOD SetAnnotationIsNot(PRBool aAnnotationIsNot) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetAnnotationIsNot(aAnnotationIsNot); } \
  NS_IMETHOD GetAnnotation(nsACString & aAnnotation) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetAnnotation(aAnnotation); } \
  NS_IMETHOD SetAnnotation(const nsACString & aAnnotation) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetAnnotation(aAnnotation); } \
  NS_IMETHOD GetHasAnnotation(PRBool *aHasAnnotation) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetHasAnnotation(aHasAnnotation); } \
  NS_IMETHOD GetFolders(PRUint32 *count, PRInt64 **folders) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetFolders(count, folders); } \
  NS_IMETHOD GetFolderCount(PRUint32 *aFolderCount) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetFolderCount(aFolderCount); } \
  NS_IMETHOD SetFolders(const PRInt64 *folders, PRUint32 folderCount) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetFolders(folders, folderCount); } \
  NS_IMETHOD Clone(nsINavHistoryQuery **_retval) { return !_to ? NS_ERROR_NULL_POINTER : _to->Clone(_retval); } 

#if 0
/* Use the code below as a template for the implementation class for this interface. */

/* Header file */
class nsNavHistoryQuery : public nsINavHistoryQuery
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSINAVHISTORYQUERY

  nsNavHistoryQuery();

private:
  ~nsNavHistoryQuery();

protected:
  /* additional members */
};

/* Implementation file */
NS_IMPL_ISUPPORTS1(nsNavHistoryQuery, nsINavHistoryQuery)

nsNavHistoryQuery::nsNavHistoryQuery()
{
  /* member initializers and constructor code */
}

nsNavHistoryQuery::~nsNavHistoryQuery()
{
  /* destructor code */
}

/* attribute PRTime beginTime; */
NS_IMETHODIMP nsNavHistoryQuery::GetBeginTime(PRTime *aBeginTime)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryQuery::SetBeginTime(PRTime aBeginTime)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute PRUint32 beginTimeReference; */
NS_IMETHODIMP nsNavHistoryQuery::GetBeginTimeReference(PRUint32 *aBeginTimeReference)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryQuery::SetBeginTimeReference(PRUint32 aBeginTimeReference)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute boolean hasBeginTime; */
NS_IMETHODIMP nsNavHistoryQuery::GetHasBeginTime(PRBool *aHasBeginTime)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute PRTime absoluteBeginTime; */
NS_IMETHODIMP nsNavHistoryQuery::GetAbsoluteBeginTime(PRTime *aAbsoluteBeginTime)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute PRTime endTime; */
NS_IMETHODIMP nsNavHistoryQuery::GetEndTime(PRTime *aEndTime)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryQuery::SetEndTime(PRTime aEndTime)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute PRUint32 endTimeReference; */
NS_IMETHODIMP nsNavHistoryQuery::GetEndTimeReference(PRUint32 *aEndTimeReference)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryQuery::SetEndTimeReference(PRUint32 aEndTimeReference)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute boolean hasEndTime; */
NS_IMETHODIMP nsNavHistoryQuery::GetHasEndTime(PRBool *aHasEndTime)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute PRTime absoluteEndTime; */
NS_IMETHODIMP nsNavHistoryQuery::GetAbsoluteEndTime(PRTime *aAbsoluteEndTime)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute AString searchTerms; */
NS_IMETHODIMP nsNavHistoryQuery::GetSearchTerms(nsAString & aSearchTerms)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryQuery::SetSearchTerms(const nsAString & aSearchTerms)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute boolean hasSearchTerms; */
NS_IMETHODIMP nsNavHistoryQuery::GetHasSearchTerms(PRBool *aHasSearchTerms)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute boolean onlyBookmarked; */
NS_IMETHODIMP nsNavHistoryQuery::GetOnlyBookmarked(PRBool *aOnlyBookmarked)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryQuery::SetOnlyBookmarked(PRBool aOnlyBookmarked)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute boolean domainIsHost; */
NS_IMETHODIMP nsNavHistoryQuery::GetDomainIsHost(PRBool *aDomainIsHost)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryQuery::SetDomainIsHost(PRBool aDomainIsHost)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute AUTF8String domain; */
NS_IMETHODIMP nsNavHistoryQuery::GetDomain(nsACString & aDomain)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryQuery::SetDomain(const nsACString & aDomain)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute boolean hasDomain; */
NS_IMETHODIMP nsNavHistoryQuery::GetHasDomain(PRBool *aHasDomain)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute boolean uriIsPrefix; */
NS_IMETHODIMP nsNavHistoryQuery::GetUriIsPrefix(PRBool *aUriIsPrefix)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryQuery::SetUriIsPrefix(PRBool aUriIsPrefix)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute nsIURI uri; */
NS_IMETHODIMP nsNavHistoryQuery::GetUri(nsIURI * *aUri)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryQuery::SetUri(nsIURI * aUri)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute boolean hasUri; */
NS_IMETHODIMP nsNavHistoryQuery::GetHasUri(PRBool *aHasUri)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute boolean annotationIsNot; */
NS_IMETHODIMP nsNavHistoryQuery::GetAnnotationIsNot(PRBool *aAnnotationIsNot)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryQuery::SetAnnotationIsNot(PRBool aAnnotationIsNot)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute AUTF8String annotation; */
NS_IMETHODIMP nsNavHistoryQuery::GetAnnotation(nsACString & aAnnotation)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryQuery::SetAnnotation(const nsACString & aAnnotation)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute boolean hasAnnotation; */
NS_IMETHODIMP nsNavHistoryQuery::GetHasAnnotation(PRBool *aHasAnnotation)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void getFolders (out PRUint32 count, [array, size_is (count), retval] out PRInt64 folders); */
NS_IMETHODIMP nsNavHistoryQuery::GetFolders(PRUint32 *count, PRInt64 **folders)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute PRUint32 folderCount; */
NS_IMETHODIMP nsNavHistoryQuery::GetFolderCount(PRUint32 *aFolderCount)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void setFolders ([array, size_is (folderCount), const] in PRInt64 folders, in PRUint32 folderCount); */
NS_IMETHODIMP nsNavHistoryQuery::SetFolders(const PRInt64 *folders, PRUint32 folderCount)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* nsINavHistoryQuery clone (); */
NS_IMETHODIMP nsNavHistoryQuery::Clone(nsINavHistoryQuery **_retval)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* End of implementation class template. */
#endif


/* starting interface:    nsINavHistoryQueryOptions */
#define NS_INAVHISTORYQUERYOPTIONS_IID_STR "25fd4de4-33b0-475e-a63d-2bcb1d123e0d"

#define NS_INAVHISTORYQUERYOPTIONS_IID \
  {0x25fd4de4, 0x33b0, 0x475e, \
    { 0xa6, 0x3d, 0x2b, 0xcb, 0x1d, 0x12, 0x3e, 0x0d }}

class NS_NO_VTABLE nsINavHistoryQueryOptions : public nsISupports {
 public: 

  NS_DECLARE_STATIC_IID_ACCESSOR(NS_INAVHISTORYQUERYOPTIONS_IID)

  /**
 * This object represents the global options for executing a query.
 */
/**
   * Grouping by day. The results will be an array of nsINavHistoryResults with
   * type = RESULT_TYPE_DAY, one for each day where there are results. These
   * will have children of corresponding to the search results of that day.
   */
  enum { GROUP_BY_DAY = 0U };

  /**
   * Groping by exact host. The results will be an array of nsINavHistoryResults
   * with type = RESULT_TYPE_HOST, one for each unique host (for example,
   * "bugzilla.mozilla.org" and "www.mozilla.org" will be separate). The
   * children of these will correspond to the results for each host.
   */
  enum { GROUP_BY_HOST = 1U };

  /**
   * Grouping by toplevel domain. Similar to GROUP_BY_HOST, but there will be
   * one result for each toplevel domain (mozilla.org will be one entry, and
   * will contain results including, for example, "bugzilla.mozilla.org" and
   * "www.mozilla.org").
   */
  enum { GROUP_BY_DOMAIN = 2U };

  /**
   * Group by bookmark folder.  Since this determines the entire subtree
   * hierarchy, it must be the last grouping option given.  This option
   * requires the query to have onlyBookmarked set, and for there to be
   * at least one parent folder specified via nsINavHistoryQuery::setFolders.
   * If all of the top-level results belong to a single folder, the folder will
   * be omitted and its children will become the toplevel result nodes.
   */
  enum { GROUP_BY_FOLDER = 3U };

  /**
   * You can ask for the results to be pre-sorted. Since the DB has indices
   * of many items, it can produce sorted results almost for free. These should
   * be self-explanatory.
   *
   * Note: re-sorting is slower, as is sorting by title or when you have a
   * host name.
   *
   * For bookmark items, SORT_BY_NONE means sort by the natural bookmark order.
   */
  enum { SORT_BY_NONE = 0U };

  enum { SORT_BY_TITLE_ASCENDING = 1U };

  enum { SORT_BY_TITLE_DESCENDING = 2U };

  enum { SORT_BY_DATE_ASCENDING = 3U };

  enum { SORT_BY_DATE_DESCENDING = 4U };

  enum { SORT_BY_URI_ASCENDING = 5U };

  enum { SORT_BY_URI_DESCENDING = 6U };

  enum { SORT_BY_VISITCOUNT_ASCENDING = 7U };

  enum { SORT_BY_VISITCOUNT_DESCENDING = 8U };

  /**
   * "URI" results, one for each URI visited in the range. Individual result
   * nodes will be of type "URI".
   */
  enum { RESULTS_AS_URI = 0U };

  /**
   * "Visit" results, with one for each time a page was visited (this will
   * often give you multiple results for one URI). Individual result nodes will
   * have type "Visit"
   */
  enum { RESULTS_AS_VISIT = 1U };

  /**
   * This is identical to RESULT_TYPE_VISIT except that individual result nodes
   * will have type "FullVisit".  This is used for the attributes that are not
   * commonly accessed to save space in the common case (the lists can be very
   * long).
   */
  enum { RESULTS_AS_FULL_VISIT = 2U };

  /**
   * The grouping mode to be used for this query.
   * Grouping mode is an array of GROUP_BY_* values that specifies the
   * structure of the tree you want.  For example, an array consisting of
   * [GROUP_BY_DAY, GROUP_BY_DOMAIN] will give you a tree whose first level is
   * a list of days, and whose second level is a list of domains, and whose
   * third level is a list of pages in those domains.
   * If you don't want grouping, you can specify an empty array.
   */
  /* void getGroupingMode (out PRUint32 groupCount, [array, size_is (groupCount), retval] out PRUint32 groupingMode); */
  NS_IMETHOD GetGroupingMode(PRUint32 *groupCount, PRUint32 **groupingMode) = 0;

  /* void setGroupingMode ([array, size_is (groupCount), const] in PRUint32 groupingMode, in PRUint32 groupCount); */
  NS_IMETHOD SetGroupingMode(const PRUint32 *groupingMode, PRUint32 groupCount) = 0;

  /**
   * The sorting mode to be used for this query.
   * mode is one of SORT_BY_*
   */
  /* attribute PRUint32 sortingMode; */
  NS_IMETHOD GetSortingMode(PRUint32 *aSortingMode) = 0;
  NS_IMETHOD SetSortingMode(PRUint32 aSortingMode) = 0;

  /**
   * Sets the result type. One of RESULT_TYPE_* which includes how URIs are
   * represented.
   */
  /* attribute PRUint32 resultType; */
  NS_IMETHOD GetResultType(PRUint32 *aResultType) = 0;
  NS_IMETHOD SetResultType(PRUint32 aResultType) = 0;

  /**
   * This option excludes all URIs and separators from a bookmarks query.
   * This would be used if you just wanted a list of bookmark folders and
   * queries (such as the left pane of the places page).
   * Ignored for queries over history. Defaults to false.
   */
  /* attribute boolean excludeItems; */
  NS_IMETHOD GetExcludeItems(PRBool *aExcludeItems) = 0;
  NS_IMETHOD SetExcludeItems(PRBool aExcludeItems) = 0;

  /**
   * Set to true to exclude queries ("place:" URIs) from the query results.
   * Simple folder queries (bookmark folder symlinks) will still be included.
   * Defaults to false.
   */
  /* attribute boolean excludeQueries; */
  NS_IMETHOD GetExcludeQueries(PRBool *aExcludeQueries) = 0;
  NS_IMETHOD SetExcludeQueries(PRBool aExcludeQueries) = 0;

  /**
   * Set to true to exclude read-only folders from the query results. This is
   * designed for cases where you want to give the user the option of filing
   * something into a list of folders. It only affects cases where the actual
   * folder result node would appear in its parent folder and filters it out.
   * It doesn't affect the query at all, and doesn't affect more complex
   * queries (such as "folders with annotation X").
   */
  /* attribute boolean excludeReadOnlyFolders; */
  NS_IMETHOD GetExcludeReadOnlyFolders(PRBool *aExcludeReadOnlyFolders) = 0;
  NS_IMETHOD SetExcludeReadOnlyFolders(PRBool aExcludeReadOnlyFolders) = 0;

  /**
   * When set, allows items with "place:" URIs to appear as containers,
   * with the container's contents filled in from the stored query.
   * If not set, these will appear as normal items. Doesn't do anything if
   * excludeQueries is set. Defaults to false.
   *
   * Note that this has no effect on folder links, which are place: URIs
   * returned by nsINavBookmarkService.GetFolderURI. These are always expanded
   * and will appear as bookmark folders.
   */
  /* attribute boolean expandQueries; */
  NS_IMETHOD GetExpandQueries(PRBool *aExpandQueries) = 0;
  NS_IMETHOD SetExpandQueries(PRBool aExpandQueries) = 0;

  /**
   * Normally the title of a result will be the user's custom title if there is
   * one, falling back on the default page title. If this is set, we will not
   * do this operation and always use the original page title extracted from
   * the HTML of the page. Defaults to false.
   */
  /* attribute boolean forceOriginalTitle; */
  NS_IMETHOD GetForceOriginalTitle(PRBool *aForceOriginalTitle) = 0;
  NS_IMETHOD SetForceOriginalTitle(PRBool aForceOriginalTitle) = 0;

  /**
   * Most items in history are marked "hidden." Only toplevel pages that the
   * user sees in the URL bar are not hidden. Hidden things include the content
   * of iframes and all images on web pages. Normally, you don't want these
   * things. If you do, set this flag and you'll get all items, even hidden
   * ones. Does nothing for bookmark queries. Defaults to false.
   */
  /* attribute boolean includeHidden; */
  NS_IMETHOD GetIncludeHidden(PRBool *aIncludeHidden) = 0;
  NS_IMETHOD SetIncludeHidden(PRBool aIncludeHidden) = 0;

  /**
   * Separate/group history items based on session information.  Only
   * matters when sorting by date.
   */
  /* attribute boolean showSessions; */
  NS_IMETHOD GetShowSessions(PRBool *aShowSessions) = 0;
  NS_IMETHOD SetShowSessions(PRBool aShowSessions) = 0;

  /**
   * This is the maximum number of results that you want. The query is exeucted,
   * the results are sorted, and then the top 'maxResults' results are taken
   * and returned. Set to 0 (the default) to get all results.
   *
   * THIS DOES NOT WORK IN CONJUNCTION WITH SORTING BY TITLE. This is because
   * sorting by title requires us to sort after using locale-sensetive sorting
   * (as opposed to letting the database do it for us).
   *
   * Instead, we get the result ordered by date, pick the maxResult most recent
   * ones, and THEN sort by title.
   */
  /* attribute PRUint32 maxResults; */
  NS_IMETHOD GetMaxResults(PRUint32 *aMaxResults) = 0;
  NS_IMETHOD SetMaxResults(PRUint32 aMaxResults) = 0;

  /**
   * Creates a new options item with the same parameters of this one.
   */
  /* nsINavHistoryQueryOptions clone (); */
  NS_IMETHOD Clone(nsINavHistoryQueryOptions **_retval) = 0;

};

  NS_DEFINE_STATIC_IID_ACCESSOR(nsINavHistoryQueryOptions, NS_INAVHISTORYQUERYOPTIONS_IID)

/* Use this macro when declaring classes that implement this interface. */
#define NS_DECL_NSINAVHISTORYQUERYOPTIONS \
  NS_IMETHOD GetGroupingMode(PRUint32 *groupCount, PRUint32 **groupingMode); \
  NS_IMETHOD SetGroupingMode(const PRUint32 *groupingMode, PRUint32 groupCount); \
  NS_IMETHOD GetSortingMode(PRUint32 *aSortingMode); \
  NS_IMETHOD SetSortingMode(PRUint32 aSortingMode); \
  NS_IMETHOD GetResultType(PRUint32 *aResultType); \
  NS_IMETHOD SetResultType(PRUint32 aResultType); \
  NS_IMETHOD GetExcludeItems(PRBool *aExcludeItems); \
  NS_IMETHOD SetExcludeItems(PRBool aExcludeItems); \
  NS_IMETHOD GetExcludeQueries(PRBool *aExcludeQueries); \
  NS_IMETHOD SetExcludeQueries(PRBool aExcludeQueries); \
  NS_IMETHOD GetExcludeReadOnlyFolders(PRBool *aExcludeReadOnlyFolders); \
  NS_IMETHOD SetExcludeReadOnlyFolders(PRBool aExcludeReadOnlyFolders); \
  NS_IMETHOD GetExpandQueries(PRBool *aExpandQueries); \
  NS_IMETHOD SetExpandQueries(PRBool aExpandQueries); \
  NS_IMETHOD GetForceOriginalTitle(PRBool *aForceOriginalTitle); \
  NS_IMETHOD SetForceOriginalTitle(PRBool aForceOriginalTitle); \
  NS_IMETHOD GetIncludeHidden(PRBool *aIncludeHidden); \
  NS_IMETHOD SetIncludeHidden(PRBool aIncludeHidden); \
  NS_IMETHOD GetShowSessions(PRBool *aShowSessions); \
  NS_IMETHOD SetShowSessions(PRBool aShowSessions); \
  NS_IMETHOD GetMaxResults(PRUint32 *aMaxResults); \
  NS_IMETHOD SetMaxResults(PRUint32 aMaxResults); \
  NS_IMETHOD Clone(nsINavHistoryQueryOptions **_retval); 

/* Use this macro to declare functions that forward the behavior of this interface to another object. */
#define NS_FORWARD_NSINAVHISTORYQUERYOPTIONS(_to) \
  NS_IMETHOD GetGroupingMode(PRUint32 *groupCount, PRUint32 **groupingMode) { return _to GetGroupingMode(groupCount, groupingMode); } \
  NS_IMETHOD SetGroupingMode(const PRUint32 *groupingMode, PRUint32 groupCount) { return _to SetGroupingMode(groupingMode, groupCount); } \
  NS_IMETHOD GetSortingMode(PRUint32 *aSortingMode) { return _to GetSortingMode(aSortingMode); } \
  NS_IMETHOD SetSortingMode(PRUint32 aSortingMode) { return _to SetSortingMode(aSortingMode); } \
  NS_IMETHOD GetResultType(PRUint32 *aResultType) { return _to GetResultType(aResultType); } \
  NS_IMETHOD SetResultType(PRUint32 aResultType) { return _to SetResultType(aResultType); } \
  NS_IMETHOD GetExcludeItems(PRBool *aExcludeItems) { return _to GetExcludeItems(aExcludeItems); } \
  NS_IMETHOD SetExcludeItems(PRBool aExcludeItems) { return _to SetExcludeItems(aExcludeItems); } \
  NS_IMETHOD GetExcludeQueries(PRBool *aExcludeQueries) { return _to GetExcludeQueries(aExcludeQueries); } \
  NS_IMETHOD SetExcludeQueries(PRBool aExcludeQueries) { return _to SetExcludeQueries(aExcludeQueries); } \
  NS_IMETHOD GetExcludeReadOnlyFolders(PRBool *aExcludeReadOnlyFolders) { return _to GetExcludeReadOnlyFolders(aExcludeReadOnlyFolders); } \
  NS_IMETHOD SetExcludeReadOnlyFolders(PRBool aExcludeReadOnlyFolders) { return _to SetExcludeReadOnlyFolders(aExcludeReadOnlyFolders); } \
  NS_IMETHOD GetExpandQueries(PRBool *aExpandQueries) { return _to GetExpandQueries(aExpandQueries); } \
  NS_IMETHOD SetExpandQueries(PRBool aExpandQueries) { return _to SetExpandQueries(aExpandQueries); } \
  NS_IMETHOD GetForceOriginalTitle(PRBool *aForceOriginalTitle) { return _to GetForceOriginalTitle(aForceOriginalTitle); } \
  NS_IMETHOD SetForceOriginalTitle(PRBool aForceOriginalTitle) { return _to SetForceOriginalTitle(aForceOriginalTitle); } \
  NS_IMETHOD GetIncludeHidden(PRBool *aIncludeHidden) { return _to GetIncludeHidden(aIncludeHidden); } \
  NS_IMETHOD SetIncludeHidden(PRBool aIncludeHidden) { return _to SetIncludeHidden(aIncludeHidden); } \
  NS_IMETHOD GetShowSessions(PRBool *aShowSessions) { return _to GetShowSessions(aShowSessions); } \
  NS_IMETHOD SetShowSessions(PRBool aShowSessions) { return _to SetShowSessions(aShowSessions); } \
  NS_IMETHOD GetMaxResults(PRUint32 *aMaxResults) { return _to GetMaxResults(aMaxResults); } \
  NS_IMETHOD SetMaxResults(PRUint32 aMaxResults) { return _to SetMaxResults(aMaxResults); } \
  NS_IMETHOD Clone(nsINavHistoryQueryOptions **_retval) { return _to Clone(_retval); } 

/* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
#define NS_FORWARD_SAFE_NSINAVHISTORYQUERYOPTIONS(_to) \
  NS_IMETHOD GetGroupingMode(PRUint32 *groupCount, PRUint32 **groupingMode) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetGroupingMode(groupCount, groupingMode); } \
  NS_IMETHOD SetGroupingMode(const PRUint32 *groupingMode, PRUint32 groupCount) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetGroupingMode(groupingMode, groupCount); } \
  NS_IMETHOD GetSortingMode(PRUint32 *aSortingMode) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetSortingMode(aSortingMode); } \
  NS_IMETHOD SetSortingMode(PRUint32 aSortingMode) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetSortingMode(aSortingMode); } \
  NS_IMETHOD GetResultType(PRUint32 *aResultType) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetResultType(aResultType); } \
  NS_IMETHOD SetResultType(PRUint32 aResultType) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetResultType(aResultType); } \
  NS_IMETHOD GetExcludeItems(PRBool *aExcludeItems) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetExcludeItems(aExcludeItems); } \
  NS_IMETHOD SetExcludeItems(PRBool aExcludeItems) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetExcludeItems(aExcludeItems); } \
  NS_IMETHOD GetExcludeQueries(PRBool *aExcludeQueries) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetExcludeQueries(aExcludeQueries); } \
  NS_IMETHOD SetExcludeQueries(PRBool aExcludeQueries) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetExcludeQueries(aExcludeQueries); } \
  NS_IMETHOD GetExcludeReadOnlyFolders(PRBool *aExcludeReadOnlyFolders) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetExcludeReadOnlyFolders(aExcludeReadOnlyFolders); } \
  NS_IMETHOD SetExcludeReadOnlyFolders(PRBool aExcludeReadOnlyFolders) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetExcludeReadOnlyFolders(aExcludeReadOnlyFolders); } \
  NS_IMETHOD GetExpandQueries(PRBool *aExpandQueries) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetExpandQueries(aExpandQueries); } \
  NS_IMETHOD SetExpandQueries(PRBool aExpandQueries) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetExpandQueries(aExpandQueries); } \
  NS_IMETHOD GetForceOriginalTitle(PRBool *aForceOriginalTitle) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetForceOriginalTitle(aForceOriginalTitle); } \
  NS_IMETHOD SetForceOriginalTitle(PRBool aForceOriginalTitle) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetForceOriginalTitle(aForceOriginalTitle); } \
  NS_IMETHOD GetIncludeHidden(PRBool *aIncludeHidden) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetIncludeHidden(aIncludeHidden); } \
  NS_IMETHOD SetIncludeHidden(PRBool aIncludeHidden) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetIncludeHidden(aIncludeHidden); } \
  NS_IMETHOD GetShowSessions(PRBool *aShowSessions) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetShowSessions(aShowSessions); } \
  NS_IMETHOD SetShowSessions(PRBool aShowSessions) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetShowSessions(aShowSessions); } \
  NS_IMETHOD GetMaxResults(PRUint32 *aMaxResults) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetMaxResults(aMaxResults); } \
  NS_IMETHOD SetMaxResults(PRUint32 aMaxResults) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetMaxResults(aMaxResults); } \
  NS_IMETHOD Clone(nsINavHistoryQueryOptions **_retval) { return !_to ? NS_ERROR_NULL_POINTER : _to->Clone(_retval); } 

#if 0
/* Use the code below as a template for the implementation class for this interface. */

/* Header file */
class nsNavHistoryQueryOptions : public nsINavHistoryQueryOptions
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSINAVHISTORYQUERYOPTIONS

  nsNavHistoryQueryOptions();

private:
  ~nsNavHistoryQueryOptions();

protected:
  /* additional members */
};

/* Implementation file */
NS_IMPL_ISUPPORTS1(nsNavHistoryQueryOptions, nsINavHistoryQueryOptions)

nsNavHistoryQueryOptions::nsNavHistoryQueryOptions()
{
  /* member initializers and constructor code */
}

nsNavHistoryQueryOptions::~nsNavHistoryQueryOptions()
{
  /* destructor code */
}

/* void getGroupingMode (out PRUint32 groupCount, [array, size_is (groupCount), retval] out PRUint32 groupingMode); */
NS_IMETHODIMP nsNavHistoryQueryOptions::GetGroupingMode(PRUint32 *groupCount, PRUint32 **groupingMode)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void setGroupingMode ([array, size_is (groupCount), const] in PRUint32 groupingMode, in PRUint32 groupCount); */
NS_IMETHODIMP nsNavHistoryQueryOptions::SetGroupingMode(const PRUint32 *groupingMode, PRUint32 groupCount)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute PRUint32 sortingMode; */
NS_IMETHODIMP nsNavHistoryQueryOptions::GetSortingMode(PRUint32 *aSortingMode)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryQueryOptions::SetSortingMode(PRUint32 aSortingMode)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute PRUint32 resultType; */
NS_IMETHODIMP nsNavHistoryQueryOptions::GetResultType(PRUint32 *aResultType)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryQueryOptions::SetResultType(PRUint32 aResultType)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute boolean excludeItems; */
NS_IMETHODIMP nsNavHistoryQueryOptions::GetExcludeItems(PRBool *aExcludeItems)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryQueryOptions::SetExcludeItems(PRBool aExcludeItems)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute boolean excludeQueries; */
NS_IMETHODIMP nsNavHistoryQueryOptions::GetExcludeQueries(PRBool *aExcludeQueries)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryQueryOptions::SetExcludeQueries(PRBool aExcludeQueries)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute boolean excludeReadOnlyFolders; */
NS_IMETHODIMP nsNavHistoryQueryOptions::GetExcludeReadOnlyFolders(PRBool *aExcludeReadOnlyFolders)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryQueryOptions::SetExcludeReadOnlyFolders(PRBool aExcludeReadOnlyFolders)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute boolean expandQueries; */
NS_IMETHODIMP nsNavHistoryQueryOptions::GetExpandQueries(PRBool *aExpandQueries)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryQueryOptions::SetExpandQueries(PRBool aExpandQueries)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute boolean forceOriginalTitle; */
NS_IMETHODIMP nsNavHistoryQueryOptions::GetForceOriginalTitle(PRBool *aForceOriginalTitle)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryQueryOptions::SetForceOriginalTitle(PRBool aForceOriginalTitle)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute boolean includeHidden; */
NS_IMETHODIMP nsNavHistoryQueryOptions::GetIncludeHidden(PRBool *aIncludeHidden)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryQueryOptions::SetIncludeHidden(PRBool aIncludeHidden)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute boolean showSessions; */
NS_IMETHODIMP nsNavHistoryQueryOptions::GetShowSessions(PRBool *aShowSessions)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryQueryOptions::SetShowSessions(PRBool aShowSessions)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* attribute PRUint32 maxResults; */
NS_IMETHODIMP nsNavHistoryQueryOptions::GetMaxResults(PRUint32 *aMaxResults)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsNavHistoryQueryOptions::SetMaxResults(PRUint32 aMaxResults)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* nsINavHistoryQueryOptions clone (); */
NS_IMETHODIMP nsNavHistoryQueryOptions::Clone(nsINavHistoryQueryOptions **_retval)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* End of implementation class template. */
#endif


/* starting interface:    nsINavHistoryService */
#define NS_INAVHISTORYSERVICE_IID_STR "1a8df7bf-4889-4331-a521-f6c4dacd20e7"

#define NS_INAVHISTORYSERVICE_IID \
  {0x1a8df7bf, 0x4889, 0x4331, \
    { 0xa5, 0x21, 0xf6, 0xc4, 0xda, 0xcd, 0x20, 0xe7 }}

class NS_NO_VTABLE nsINavHistoryService : public nsISupports {
 public: 

  NS_DECLARE_STATIC_IID_ACCESSOR(NS_INAVHISTORYSERVICE_IID)

  /**
   * This transition type means the user followed a link and got a new toplevel
   * window.
   */
  enum { TRANSITION_LINK = 1U };

  /**
   * This transition type means that the user typed the page's URL in the
   * URL bar.
   */
  enum { TRANSITION_TYPED = 2U };

  /**
   * This transition is set when the user followed a bookmark to get to the
   * page.
   */
  enum { TRANSITION_BOOKMARK = 3U };

  /**
   * This transition type is set when some inner content is loaded. This is
   * true of all images on a page, and the contents of the iframe. It is also
   * true of any content in a frame, regardless if whether or not the user
   * clicked something to get there.
   */
  enum { TRANSITION_EMBED = 4U };

  /**
   * Set when the transition was a permanent redirect.
   */
  enum { TRANSITION_REDIRECT_PERMANENT = 5U };

  /**
   * Set when the transition was a temporary redirect.
   */
  enum { TRANSITION_REDIRECT_TEMPORARY = 6U };

  /**
   * True if there is any history. This can be used in UI to determine whether
   * the "clear history" button should be enabled or not. This is much better
   * than using BrowserHistory.count since that can be very slow if there is
   * a lot of history (it must enumerate each item). This is pretty fast.
   */
  /* readonly attribute boolean hasHistoryEntries; */
  NS_IMETHOD GetHasHistoryEntries(PRBool *aHasHistoryEntries) = 0;

  /**
   * This sets the user-defined title of the page. Silently fails if we have
   * no knowledge of this page. Set to empty string to clear the user title and
   * only use the "real" title as declared on the page.
   */
  /* void setPageUserTitle (in nsIURI aURI, in AString aUserTitle); */
  NS_IMETHOD SetPageUserTitle(nsIURI *aURI, const nsAString & aUserTitle) = 0;

  /**
   * This is just like markPageAsTyped (in nsIBrowserHistory, also implemented
   * by the history service), but for bookmarks. It declares that the given URI
   * is being opened as a result of following a bookmark. If this URI is loaded
   * soon after this message has been received, that transition will be marked
   * as following a bookmark.
   */
  /* void markPageAsFollowedBookmark (in nsIURI aURI); */
  NS_IMETHOD MarkPageAsFollowedBookmark(nsIURI *aURI) = 0;

  /**
   * Returns true if this URI would be added to the history. You don't have to
   * worry about calling this, addPageToSession/addURI will always check before
   * actually adding the page. This function is public because some components
   * may want to check if this page would go in the history (i.e. for
   * annotations).
   */
  /* boolean canAddURI (in nsIURI aURI); */
  NS_IMETHOD CanAddURI(nsIURI *aURI, PRBool *_retval) = 0;

  /**
   * Call to set the full information for a given page. If the page does not
   * exist, it will be added to the database. If it does, the existing values
   * WILL BE OVERWRITTEN. This is an updated version of addPageWithDetails
   * for backup/restore type operations.
   *
   * @param aURI        Page to add/change.
   * @param aTitle      Title as specified by the page.
   * @param aUserTitle  Custom title provided by user. Set to NULL if none.
   * @param aVisitCount Number of times this page has been visited. Setting this
   *                    to 0 may make the page invisible in some views.
   * @param aHidden     Whether the page is hidden. If the page has only
   *                    TRANSITION_EMBED visits, this will be true, otherwise
   *                    false.
   * @param aTyped      True if this URI has ever been typed.
   */
  /* void setPageDetails (in nsIURI aURI, in AString aTitle, in AString aUserTitle, in PRUint32 aVisitCount, in boolean aHidden, in boolean aTyped); */
  NS_IMETHOD SetPageDetails(nsIURI *aURI, const nsAString & aTitle, const nsAString & aUserTitle, PRUint32 aVisitCount, PRBool aHidden, PRBool aTyped) = 0;

  /**
   * Call to manually add a visit for a specific page. This will probably not
   * be commonly used other than for backup/restore type operations. If the URI
   * does not have an entry in the history database already, one will be created
   * with no visits, no title, hidden, not typed.  Adding a visit will
   * automatically increment the visit count for the visited page and will unhide
   * it and/or mark it typed according to the transition type.
   *
   * @param aURI             Visited page
   * @param aTime            Time page was visited (microseconds)
   * @param aReferringVisit  The ID of the visit that generated this one. Use 0
   *                         for no referrer. This must be a valid visit already
   *                         in the DB or 0.
   * @param aTranstitionType Type of transition: one of TRANSITION_* above
   * @param aIsRedirect      True if the given visit redirects to somewhere else.
   *                         (ie you will create an visit out of here that is a
   *                         redirect transition). This causes this page to be
   *                         hidden in normal history views (unless it has been
   *                         unhidden by visiting it with a non-redirect).
   * @param aSessionID       The session ID that this page belongs to. Use 0 for
   *                         no session.
   * @returns The ID of the created visit. This will be 0 if the URI is not
   *          valid for adding to history (canAddURI = false).
   */
  /* PRInt64 addVisit (in nsIURI aURI, in PRTime aTime, in PRInt64 aReferringVisit, in PRInt32 aTransitionType, in boolean aIsRedirect, in PRInt64 aSessionID); */
  NS_IMETHOD AddVisit(nsIURI *aURI, PRTime aTime, PRInt64 aReferringVisit, PRInt32 aTransitionType, PRBool aIsRedirect, PRInt64 aSessionID, PRInt64 *_retval) = 0;

  /**
   * This returns a new query object that you can pass to executeQuer[y/ies].
   * It will be initialized to all empty (so using it will give you all history).
   */
  /* nsINavHistoryQuery getNewQuery (); */
  NS_IMETHOD GetNewQuery(nsINavHistoryQuery **_retval) = 0;

  /**
   * This returns a new options object that you can pass to executeQuer[y/ies]
   * after setting the desired options.
   */
  /* nsINavHistoryQueryOptions getNewQueryOptions (); */
  NS_IMETHOD GetNewQueryOptions(nsINavHistoryQueryOptions **_retval) = 0;

  /**
   * Executes a single query.
   */
  /* nsINavHistoryResult executeQuery (in nsINavHistoryQuery aQuery, in nsINavHistoryQueryOptions options); */
  NS_IMETHOD ExecuteQuery(nsINavHistoryQuery *aQuery, nsINavHistoryQueryOptions *options, nsINavHistoryResult **_retval) = 0;

  /**
   * Executes an array of queries. All of the query objects are ORed
   * together. Within a query, all the terms are ANDed together as in
   * executeQuery. See executeQuery()
   */
  /* nsINavHistoryResult executeQueries ([array, size_is (aQueryCount)] in nsINavHistoryQuery aQueries, in PRUint32 aQueryCount, in nsINavHistoryQueryOptions options); */
  NS_IMETHOD ExecuteQueries(nsINavHistoryQuery **aQueries, PRUint32 aQueryCount, nsINavHistoryQueryOptions *options, nsINavHistoryResult **_retval) = 0;

  /**
   * Converts a query URI-like string to an array of actual query objects for
   * use to executeQueries(). The output query array may be empty if there is
   * no information. However, there will always be an options structure returned
   * (if nothing is defined, it will just have the default values).
   */
  /* void queryStringToQueries (in AUTF8String aQueryString, [array, size_is (aResultCount)] out nsINavHistoryQuery aQueries, out PRUint32 aResultCount, out nsINavHistoryQueryOptions options); */
  NS_IMETHOD QueryStringToQueries(const nsACString & aQueryString, nsINavHistoryQuery ***aQueries, PRUint32 *aResultCount, nsINavHistoryQueryOptions **options) = 0;

  /**
   * Converts a query into an equivalent string that can be persisted. Inverse
   * of queryStringToQueries()
   */
  /* AUTF8String queriesToQueryString ([array, size_is (aQueryCount)] in nsINavHistoryQuery aQueries, in PRUint32 aQueryCount, in nsINavHistoryQueryOptions options); */
  NS_IMETHOD QueriesToQueryString(nsINavHistoryQuery **aQueries, PRUint32 aQueryCount, nsINavHistoryQueryOptions *options, nsACString & _retval) = 0;

  /**
   * Adds a history observer. If ownsWeak is false, the history service will
   * keep an owning reference to the observer.  If ownsWeak is true, then
   * aObserver must implement nsISupportsWeakReference, and the history service
   * will keep a weak reference to the observer.
   */
  /* void addObserver (in nsINavHistoryObserver observer, in boolean ownsWeak); */
  NS_IMETHOD AddObserver(nsINavHistoryObserver *observer, PRBool ownsWeak) = 0;

  /**
   * Removes a history observer.
   */
  /* void removeObserver (in nsINavHistoryObserver observer); */
  NS_IMETHOD RemoveObserver(nsINavHistoryObserver *observer) = 0;

  /**
   * Causes observers to be notified of a beginUpdateBatch when a lot of things
   * are about to change. Calls can be nested, observers will only be
   * notified when all batches begin/end.
   */
  /* void beginUpdateBatch (); */
  NS_IMETHOD BeginUpdateBatch(void) = 0;

  /**
   * Causes observers to be notified of an endUpdateBatch when a batch is
   * done changing. Should match beginUpdateBatch or bad things will happen.
   */
  /* void endUpdateBatch (); */
  NS_IMETHOD EndUpdateBatch(void) = 0;

  /** 
   * True if history is disabled. currently, 
   * history is disabled if the browser.history_expire_days pref is 0
   */
  /* readonly attribute boolean historyDisabled; */
  NS_IMETHOD GetHistoryDisabled(PRBool *aHistoryDisabled) = 0;

};

  NS_DEFINE_STATIC_IID_ACCESSOR(nsINavHistoryService, NS_INAVHISTORYSERVICE_IID)

/* Use this macro when declaring classes that implement this interface. */
#define NS_DECL_NSINAVHISTORYSERVICE \
  NS_IMETHOD GetHasHistoryEntries(PRBool *aHasHistoryEntries); \
  NS_IMETHOD SetPageUserTitle(nsIURI *aURI, const nsAString & aUserTitle); \
  NS_IMETHOD MarkPageAsFollowedBookmark(nsIURI *aURI); \
  NS_IMETHOD CanAddURI(nsIURI *aURI, PRBool *_retval); \
  NS_IMETHOD SetPageDetails(nsIURI *aURI, const nsAString & aTitle, const nsAString & aUserTitle, PRUint32 aVisitCount, PRBool aHidden, PRBool aTyped); \
  NS_IMETHOD AddVisit(nsIURI *aURI, PRTime aTime, PRInt64 aReferringVisit, PRInt32 aTransitionType, PRBool aIsRedirect, PRInt64 aSessionID, PRInt64 *_retval); \
  NS_IMETHOD GetNewQuery(nsINavHistoryQuery **_retval); \
  NS_IMETHOD GetNewQueryOptions(nsINavHistoryQueryOptions **_retval); \
  NS_IMETHOD ExecuteQuery(nsINavHistoryQuery *aQuery, nsINavHistoryQueryOptions *options, nsINavHistoryResult **_retval); \
  NS_IMETHOD ExecuteQueries(nsINavHistoryQuery **aQueries, PRUint32 aQueryCount, nsINavHistoryQueryOptions *options, nsINavHistoryResult **_retval); \
  NS_IMETHOD QueryStringToQueries(const nsACString & aQueryString, nsINavHistoryQuery ***aQueries, PRUint32 *aResultCount, nsINavHistoryQueryOptions **options); \
  NS_IMETHOD QueriesToQueryString(nsINavHistoryQuery **aQueries, PRUint32 aQueryCount, nsINavHistoryQueryOptions *options, nsACString & _retval); \
  NS_IMETHOD AddObserver(nsINavHistoryObserver *observer, PRBool ownsWeak); \
  NS_IMETHOD RemoveObserver(nsINavHistoryObserver *observer); \
  NS_IMETHOD BeginUpdateBatch(void); \
  NS_IMETHOD EndUpdateBatch(void); \
  NS_IMETHOD GetHistoryDisabled(PRBool *aHistoryDisabled); 

/* Use this macro to declare functions that forward the behavior of this interface to another object. */
#define NS_FORWARD_NSINAVHISTORYSERVICE(_to) \
  NS_IMETHOD GetHasHistoryEntries(PRBool *aHasHistoryEntries) { return _to GetHasHistoryEntries(aHasHistoryEntries); } \
  NS_IMETHOD SetPageUserTitle(nsIURI *aURI, const nsAString & aUserTitle) { return _to SetPageUserTitle(aURI, aUserTitle); } \
  NS_IMETHOD MarkPageAsFollowedBookmark(nsIURI *aURI) { return _to MarkPageAsFollowedBookmark(aURI); } \
  NS_IMETHOD CanAddURI(nsIURI *aURI, PRBool *_retval) { return _to CanAddURI(aURI, _retval); } \
  NS_IMETHOD SetPageDetails(nsIURI *aURI, const nsAString & aTitle, const nsAString & aUserTitle, PRUint32 aVisitCount, PRBool aHidden, PRBool aTyped) { return _to SetPageDetails(aURI, aTitle, aUserTitle, aVisitCount, aHidden, aTyped); } \
  NS_IMETHOD AddVisit(nsIURI *aURI, PRTime aTime, PRInt64 aReferringVisit, PRInt32 aTransitionType, PRBool aIsRedirect, PRInt64 aSessionID, PRInt64 *_retval) { return _to AddVisit(aURI, aTime, aReferringVisit, aTransitionType, aIsRedirect, aSessionID, _retval); } \
  NS_IMETHOD GetNewQuery(nsINavHistoryQuery **_retval) { return _to GetNewQuery(_retval); } \
  NS_IMETHOD GetNewQueryOptions(nsINavHistoryQueryOptions **_retval) { return _to GetNewQueryOptions(_retval); } \
  NS_IMETHOD ExecuteQuery(nsINavHistoryQuery *aQuery, nsINavHistoryQueryOptions *options, nsINavHistoryResult **_retval) { return _to ExecuteQuery(aQuery, options, _retval); } \
  NS_IMETHOD ExecuteQueries(nsINavHistoryQuery **aQueries, PRUint32 aQueryCount, nsINavHistoryQueryOptions *options, nsINavHistoryResult **_retval) { return _to ExecuteQueries(aQueries, aQueryCount, options, _retval); } \
  NS_IMETHOD QueryStringToQueries(const nsACString & aQueryString, nsINavHistoryQuery ***aQueries, PRUint32 *aResultCount, nsINavHistoryQueryOptions **options) { return _to QueryStringToQueries(aQueryString, aQueries, aResultCount, options); } \
  NS_IMETHOD QueriesToQueryString(nsINavHistoryQuery **aQueries, PRUint32 aQueryCount, nsINavHistoryQueryOptions *options, nsACString & _retval) { return _to QueriesToQueryString(aQueries, aQueryCount, options, _retval); } \
  NS_IMETHOD AddObserver(nsINavHistoryObserver *observer, PRBool ownsWeak) { return _to AddObserver(observer, ownsWeak); } \
  NS_IMETHOD RemoveObserver(nsINavHistoryObserver *observer) { return _to RemoveObserver(observer); } \
  NS_IMETHOD BeginUpdateBatch(void) { return _to BeginUpdateBatch(); } \
  NS_IMETHOD EndUpdateBatch(void) { return _to EndUpdateBatch(); } \
  NS_IMETHOD GetHistoryDisabled(PRBool *aHistoryDisabled) { return _to GetHistoryDisabled(aHistoryDisabled); } 

/* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
#define NS_FORWARD_SAFE_NSINAVHISTORYSERVICE(_to) \
  NS_IMETHOD GetHasHistoryEntries(PRBool *aHasHistoryEntries) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetHasHistoryEntries(aHasHistoryEntries); } \
  NS_IMETHOD SetPageUserTitle(nsIURI *aURI, const nsAString & aUserTitle) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetPageUserTitle(aURI, aUserTitle); } \
  NS_IMETHOD MarkPageAsFollowedBookmark(nsIURI *aURI) { return !_to ? NS_ERROR_NULL_POINTER : _to->MarkPageAsFollowedBookmark(aURI); } \
  NS_IMETHOD CanAddURI(nsIURI *aURI, PRBool *_retval) { return !_to ? NS_ERROR_NULL_POINTER : _to->CanAddURI(aURI, _retval); } \
  NS_IMETHOD SetPageDetails(nsIURI *aURI, const nsAString & aTitle, const nsAString & aUserTitle, PRUint32 aVisitCount, PRBool aHidden, PRBool aTyped) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetPageDetails(aURI, aTitle, aUserTitle, aVisitCount, aHidden, aTyped); } \
  NS_IMETHOD AddVisit(nsIURI *aURI, PRTime aTime, PRInt64 aReferringVisit, PRInt32 aTransitionType, PRBool aIsRedirect, PRInt64 aSessionID, PRInt64 *_retval) { return !_to ? NS_ERROR_NULL_POINTER : _to->AddVisit(aURI, aTime, aReferringVisit, aTransitionType, aIsRedirect, aSessionID, _retval); } \
  NS_IMETHOD GetNewQuery(nsINavHistoryQuery **_retval) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetNewQuery(_retval); } \
  NS_IMETHOD GetNewQueryOptions(nsINavHistoryQueryOptions **_retval) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetNewQueryOptions(_retval); } \
  NS_IMETHOD ExecuteQuery(nsINavHistoryQuery *aQuery, nsINavHistoryQueryOptions *options, nsINavHistoryResult **_retval) { return !_to ? NS_ERROR_NULL_POINTER : _to->ExecuteQuery(aQuery, options, _retval); } \
  NS_IMETHOD ExecuteQueries(nsINavHistoryQuery **aQueries, PRUint32 aQueryCount, nsINavHistoryQueryOptions *options, nsINavHistoryResult **_retval) { return !_to ? NS_ERROR_NULL_POINTER : _to->ExecuteQueries(aQueries, aQueryCount, options, _retval); } \
  NS_IMETHOD QueryStringToQueries(const nsACString & aQueryString, nsINavHistoryQuery ***aQueries, PRUint32 *aResultCount, nsINavHistoryQueryOptions **options) { return !_to ? NS_ERROR_NULL_POINTER : _to->QueryStringToQueries(aQueryString, aQueries, aResultCount, options); } \
  NS_IMETHOD QueriesToQueryString(nsINavHistoryQuery **aQueries, PRUint32 aQueryCount, nsINavHistoryQueryOptions *options, nsACString & _retval) { return !_to ? NS_ERROR_NULL_POINTER : _to->QueriesToQueryString(aQueries, aQueryCount, options, _retval); } \
  NS_IMETHOD AddObserver(nsINavHistoryObserver *observer, PRBool ownsWeak) { return !_to ? NS_ERROR_NULL_POINTER : _to->AddObserver(observer, ownsWeak); } \
  NS_IMETHOD RemoveObserver(nsINavHistoryObserver *observer) { return !_to ? NS_ERROR_NULL_POINTER : _to->RemoveObserver(observer); } \
  NS_IMETHOD BeginUpdateBatch(void) { return !_to ? NS_ERROR_NULL_POINTER : _to->BeginUpdateBatch(); } \
  NS_IMETHOD EndUpdateBatch(void) { return !_to ? NS_ERROR_NULL_POINTER : _to->EndUpdateBatch(); } \
  NS_IMETHOD GetHistoryDisabled(PRBool *aHistoryDisabled) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetHistoryDisabled(aHistoryDisabled); } 

#if 0
/* Use the code below as a template for the implementation class for this interface. */

/* Header file */
class nsNavHistoryService : public nsINavHistoryService
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSINAVHISTORYSERVICE

  nsNavHistoryService();

private:
  ~nsNavHistoryService();

protected:
  /* additional members */
};

/* Implementation file */
NS_IMPL_ISUPPORTS1(nsNavHistoryService, nsINavHistoryService)

nsNavHistoryService::nsNavHistoryService()
{
  /* member initializers and constructor code */
}

nsNavHistoryService::~nsNavHistoryService()
{
  /* destructor code */
}

/* readonly attribute boolean hasHistoryEntries; */
NS_IMETHODIMP nsNavHistoryService::GetHasHistoryEntries(PRBool *aHasHistoryEntries)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void setPageUserTitle (in nsIURI aURI, in AString aUserTitle); */
NS_IMETHODIMP nsNavHistoryService::SetPageUserTitle(nsIURI *aURI, const nsAString & aUserTitle)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void markPageAsFollowedBookmark (in nsIURI aURI); */
NS_IMETHODIMP nsNavHistoryService::MarkPageAsFollowedBookmark(nsIURI *aURI)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* boolean canAddURI (in nsIURI aURI); */
NS_IMETHODIMP nsNavHistoryService::CanAddURI(nsIURI *aURI, PRBool *_retval)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void setPageDetails (in nsIURI aURI, in AString aTitle, in AString aUserTitle, in PRUint32 aVisitCount, in boolean aHidden, in boolean aTyped); */
NS_IMETHODIMP nsNavHistoryService::SetPageDetails(nsIURI *aURI, const nsAString & aTitle, const nsAString & aUserTitle, PRUint32 aVisitCount, PRBool aHidden, PRBool aTyped)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* PRInt64 addVisit (in nsIURI aURI, in PRTime aTime, in PRInt64 aReferringVisit, in PRInt32 aTransitionType, in boolean aIsRedirect, in PRInt64 aSessionID); */
NS_IMETHODIMP nsNavHistoryService::AddVisit(nsIURI *aURI, PRTime aTime, PRInt64 aReferringVisit, PRInt32 aTransitionType, PRBool aIsRedirect, PRInt64 aSessionID, PRInt64 *_retval)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* nsINavHistoryQuery getNewQuery (); */
NS_IMETHODIMP nsNavHistoryService::GetNewQuery(nsINavHistoryQuery **_retval)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* nsINavHistoryQueryOptions getNewQueryOptions (); */
NS_IMETHODIMP nsNavHistoryService::GetNewQueryOptions(nsINavHistoryQueryOptions **_retval)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* nsINavHistoryResult executeQuery (in nsINavHistoryQuery aQuery, in nsINavHistoryQueryOptions options); */
NS_IMETHODIMP nsNavHistoryService::ExecuteQuery(nsINavHistoryQuery *aQuery, nsINavHistoryQueryOptions *options, nsINavHistoryResult **_retval)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* nsINavHistoryResult executeQueries ([array, size_is (aQueryCount)] in nsINavHistoryQuery aQueries, in PRUint32 aQueryCount, in nsINavHistoryQueryOptions options); */
NS_IMETHODIMP nsNavHistoryService::ExecuteQueries(nsINavHistoryQuery **aQueries, PRUint32 aQueryCount, nsINavHistoryQueryOptions *options, nsINavHistoryResult **_retval)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void queryStringToQueries (in AUTF8String aQueryString, [array, size_is (aResultCount)] out nsINavHistoryQuery aQueries, out PRUint32 aResultCount, out nsINavHistoryQueryOptions options); */
NS_IMETHODIMP nsNavHistoryService::QueryStringToQueries(const nsACString & aQueryString, nsINavHistoryQuery ***aQueries, PRUint32 *aResultCount, nsINavHistoryQueryOptions **options)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* AUTF8String queriesToQueryString ([array, size_is (aQueryCount)] in nsINavHistoryQuery aQueries, in PRUint32 aQueryCount, in nsINavHistoryQueryOptions options); */
NS_IMETHODIMP nsNavHistoryService::QueriesToQueryString(nsINavHistoryQuery **aQueries, PRUint32 aQueryCount, nsINavHistoryQueryOptions *options, nsACString & _retval)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void addObserver (in nsINavHistoryObserver observer, in boolean ownsWeak); */
NS_IMETHODIMP nsNavHistoryService::AddObserver(nsINavHistoryObserver *observer, PRBool ownsWeak)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void removeObserver (in nsINavHistoryObserver observer); */
NS_IMETHODIMP nsNavHistoryService::RemoveObserver(nsINavHistoryObserver *observer)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void beginUpdateBatch (); */
NS_IMETHODIMP nsNavHistoryService::BeginUpdateBatch()
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void endUpdateBatch (); */
NS_IMETHODIMP nsNavHistoryService::EndUpdateBatch()
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* readonly attribute boolean historyDisabled; */
NS_IMETHODIMP nsNavHistoryService::GetHistoryDisabled(PRBool *aHistoryDisabled)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* End of implementation class template. */
#endif


/* starting interface:    nsIMorkHistoryImporter */
#define NS_IMORKHISTORYIMPORTER_IID_STR "be935aed-6929-4e44-be29-17ec89e5c8bd"

#define NS_IMORKHISTORYIMPORTER_IID \
  {0xbe935aed, 0x6929, 0x4e44, \
    { 0xbe, 0x29, 0x17, 0xec, 0x89, 0xe5, 0xc8, 0xbd }}

/**
 * nsIMorkHistoryImporter is a service which handles importing old
 * history files.
 */
class NS_NO_VTABLE nsIMorkHistoryImporter : public nsISupports {
 public: 

  NS_DECLARE_STATIC_IID_ACCESSOR(NS_IMORKHISTORYIMPORTER_IID)

  /**
   * Import the given Mork history file.
   *  @param file     The Mork history file to import
   *  @param history  A reference to the nsINavHistoryService.  This is
   *                  supplied since the importer is invoked during
   *                  history service initialization.
   */
  /* void importHistory (in nsIFile file, in nsINavHistoryService history); */
  NS_IMETHOD ImportHistory(nsIFile *file, nsINavHistoryService *history) = 0;

};

  NS_DEFINE_STATIC_IID_ACCESSOR(nsIMorkHistoryImporter, NS_IMORKHISTORYIMPORTER_IID)

/* Use this macro when declaring classes that implement this interface. */
#define NS_DECL_NSIMORKHISTORYIMPORTER \
  NS_IMETHOD ImportHistory(nsIFile *file, nsINavHistoryService *history); 

/* Use this macro to declare functions that forward the behavior of this interface to another object. */
#define NS_FORWARD_NSIMORKHISTORYIMPORTER(_to) \
  NS_IMETHOD ImportHistory(nsIFile *file, nsINavHistoryService *history) { return _to ImportHistory(file, history); } 

/* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
#define NS_FORWARD_SAFE_NSIMORKHISTORYIMPORTER(_to) \
  NS_IMETHOD ImportHistory(nsIFile *file, nsINavHistoryService *history) { return !_to ? NS_ERROR_NULL_POINTER : _to->ImportHistory(file, history); } 

#if 0
/* Use the code below as a template for the implementation class for this interface. */

/* Header file */
class nsMorkHistoryImporter : public nsIMorkHistoryImporter
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSIMORKHISTORYIMPORTER

  nsMorkHistoryImporter();

private:
  ~nsMorkHistoryImporter();

protected:
  /* additional members */
};

/* Implementation file */
NS_IMPL_ISUPPORTS1(nsMorkHistoryImporter, nsIMorkHistoryImporter)

nsMorkHistoryImporter::nsMorkHistoryImporter()
{
  /* member initializers and constructor code */
}

nsMorkHistoryImporter::~nsMorkHistoryImporter()
{
  /* destructor code */
}

/* void importHistory (in nsIFile file, in nsINavHistoryService history); */
NS_IMETHODIMP nsMorkHistoryImporter::ImportHistory(nsIFile *file, nsINavHistoryService *history)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* End of implementation class template. */
#endif


#endif /* __gen_nsINavHistoryService_h__ */
