Source code of Windows XP (NT5)
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//+-------------------------------------------------------------------------
//
// Microsoft Windows
//
// Copyright (C) Microsoft Corporation, 1999 - 1999
//
// File: histlist.h
//
//--------------------------------------------------------------------------
#pragma once
#ifndef _HISTORY_LIST_H
#define _HISTORY_LIST_H
#include <exdisp.h>
#include <mshtml.h>
#include "amcview.h"
#include "treectrl.h"
#include "resultview.h"
#include <windowsx.h> // for globalallocptr macro
SC ScGetPageBreakURL(CStr& strResultPane);
enum NavState
{
MMC_HISTORY_READY = 0,
MMC_HISTORY_NAVIGATING = 1,
MMC_HISTORY_BUSY = 2,
MMC_HISTORY_PAGE_BREAK = 3
};
enum HistoryButton
{
HB_BACK = -1,
HB_STOP = 0,
HB_FORWARD = 1
};
class CHistoryEntry
{
public:
bool operator == (const CHistoryEntry &other) const;
bool operator != (const CHistoryEntry &other) const;
bool IsWebEntry() {return resultViewType.HasWebBrowser();}
bool IsListEntry() {return resultViewType.HasList();}
bool IsOCXEntry() {return resultViewType.HasOCX();}
public:
int viewMode; // valid only if the result view is a list. This field is not a part of CResultViewType because the snapin does not specify this.
HNODE hnode; // currently selected node in scope tree
GUID guidTaskpad; // the selected taskpad
CResultViewType resultViewType; // all the details about the result pane
};
/*+-------------------------------------------------------------------------*
* class CHistoryList
*
*
* PURPOSE: Maintains a list of all the states visited by the user for a view.
*
*+-------------------------------------------------------------------------*/
class CHistoryList
{
typedef std::list<CHistoryEntry> HistoryEntryList;
enum {MAX_HISTORY_ENTRIES = 100};
public:
typedef HistoryEntryList::iterator iterator;
CHistoryList(CAMCView* pView);
~CHistoryList();
void Attach (CAMCWebViewCtrl* pWebViewCtrl) {m_pWebViewCtrl = pWebViewCtrl;}
BOOL IsFirst(); // should we light up the "Back" button?
BOOL IsLast(); // should we light up the "Forward" button?
HRESULT Back (bool &bHandled, bool bUseBrowserHistory = true);
HRESULT Forward(bool &bHandled, bool bUseBrowserHistory = true);
SC ScAddEntry (CResultViewType &rvt, int viewMode, GUID &guidTaskpad); // adds new entry at current location
void DeleteEntry (HNODE hnode);
SC ScModifyViewTab(const GUID& guidTab);
SC ScChangeViewMode(int viewMode);
void MaintainWebBar();
void Compact();
HRESULT ExecuteCurrent();
void UpdateWebBar (HistoryButton button, BOOL bOn);
void Clear();
void OnBrowserStateChange(bool bEnableForward, bool bEnableBack);
SC ScOnPageBreak();
SC ScDoPageBreak();
void OnPageBreakStateChange(bool bPageBreak);
void DeleteSubsequentEntries();
NavState GetNavigateState() { return m_navState; }
void SetNavigateState(NavState state) { m_navState = state; }
SC ScGetCurrentResultViewType (CResultViewType &rvt, int& viewMode, GUID &guidTaskpad);
void SetCurrentViewMode (long nViewMode);
private:
CAMCWebViewCtrl* GetWebViewCtrl() {return m_pWebViewCtrl;}
bool PreviousWebPagesExist();
private:
iterator m_iterCurrent; // current index
HistoryEntryList m_entries; // array (note: using array-size doubling scheme)
CAMCView* m_pView; // to get current node
NavState m_navState; // TRUE when busy
CAMCWebViewCtrl *m_pWebViewCtrl; // used to navigate to a page break.
bool m_bBrowserForwardEnabled;
bool m_bBrowserBackEnabled;
bool m_bCurrentStateIsForward; // tells us if we're going forward or backward.
bool m_bPageBreak; // are we sitting at a page break right now?
bool m_bWithin_CHistoryList_Back; // to know "Back" is on stack
bool m_bWithin_CHistoryList_Forward; // to know "Forward" is on stack
};
#endif