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 * Copyright 2005 James Hawkins
 * Copyright 2007 Jacek Caban for CodeWeavers
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * Lesser General Public License for more details.
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA

#ifndef HHCTRL_H
#define HHCTRL_H

#include <stdarg.h>


#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "winnls.h"
#include "htmlhelp.h"
#include "ole2.h"
#include "exdisp.h"
#include "mshtmhst.h"
#include "commctrl.h"

#ifdef INIT_GUID
#include "initguid.h"

#include "wine/itss.h"
#include "wine/unicode.h"

#define WB_GOBACK     0
#define WB_GOFORWARD  1
#define WB_GOHOME     2
#define WB_SEARCH     3
#define WB_REFRESH    4
#define WB_STOP       5

typedef struct {
    LPWSTR chm_file;
    LPWSTR chm_index;
} ChmPath;

typedef struct ContentItem {
    struct ContentItem *parent;
    struct ContentItem *child;
    struct ContentItem *next;


    LPWSTR name;
    LPWSTR local;
    ChmPath merge;
} ContentItem;

typedef struct CHMInfo
    IITStorage *pITStorage;
    IStorage *pStorage;
    WCHAR *szFile;

    IStream *strings_stream;
    char **strings;
    DWORD strings_size;

    WCHAR *defTopic;
    WCHAR *defTitle;
    WCHAR *defToc;
} CHMInfo;

#define TAB_CONTENTS   0
#define TAB_INDEX      1
#define TAB_SEARCH     2
#define TAB_FAVORITES  3

typedef struct {
    HWND hwnd;
    DWORD id;
} HHTab;

typedef struct {
    IOleClientSite *client_site;
    IWebBrowser2 *web_browser;
    IOleObject *wb_object;

    HH_WINTYPEW WinType;

    LPWSTR pszType;
    LPWSTR pszCaption;
    LPWSTR pszToc;
    LPWSTR pszIndex;
    LPWSTR pszFile;
    LPWSTR pszHome;
    LPWSTR pszJump1;
    LPWSTR pszJump2;
    LPWSTR pszUrlJump1;
    LPWSTR pszUrlJump2;
    LPWSTR pszCustomTabs;

    CHMInfo *pCHMInfo;
    ContentItem *content;
    HWND hwndTabCtrl;
    HWND hwndSizeBar;
    HFONT hFont;

    HHTab tabs[TAB_FAVORITES+1];
    DWORD current_tab;
} HHInfo;

BOOL InitWebBrowser(HHInfo*,HWND);
void ReleaseWebBrowser(HHInfo*);
void ResizeWebBrowser(HHInfo*,DWORD,DWORD);
void DoPageAction(HHInfo*,DWORD);

void InitContent(HHInfo*);
void ReleaseContent(HHInfo*);

CHMInfo *OpenCHM(LPCWSTR szFile);
BOOL LoadWinTypeFromCHM(HHInfo *info);
CHMInfo *CloseCHM(CHMInfo *pCHMInfo);
void SetChmPath(ChmPath*,LPCWSTR,LPCWSTR);
IStream *GetChmStream(CHMInfo*,LPCWSTR,ChmPath*);
LPWSTR FindContextAlias(CHMInfo*,DWORD);

HHInfo *CreateHelpViewer(LPCWSTR);
void ReleaseHelpViewer(HHInfo*);
BOOL NavigateToUrl(HHInfo*,LPCWSTR);

/* memory allocation functions */

static inline void * __WINE_ALLOC_SIZE(1) heap_alloc(size_t len)
    return HeapAlloc(GetProcessHeap(), 0, len);

static inline void * __WINE_ALLOC_SIZE(1) heap_alloc_zero(size_t len)
    return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);

static inline void * __WINE_ALLOC_SIZE(2) heap_realloc(void *mem, size_t len)
    return HeapReAlloc(GetProcessHeap(), 0, mem, len);

static inline void * __WINE_ALLOC_SIZE(2) heap_realloc_zero(void *mem, size_t len)
    return HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, mem, len);

static inline BOOL heap_free(void *mem)
    return HeapFree(GetProcessHeap(), 0, mem);

static inline LPWSTR strdupW(LPCWSTR str)
    LPWSTR ret;
    int size;

        return NULL;

    size = (strlenW(str)+1)*sizeof(WCHAR);
    ret = heap_alloc(size);
    memcpy(ret, str, size);

    return ret;

static inline LPWSTR strdupnAtoW(LPCSTR str, LONG lenA)
    LPWSTR ret;
    DWORD len;

        return NULL;

    if (lenA > 0)
        /* find length of string */
        LPCSTR eos = memchr(str, 0, lenA);
      if (eos) lenA = eos - str;

    len = MultiByteToWideChar(CP_ACP, 0, str, lenA, NULL, 0)+1; /* +1 for null pad */
    ret = heap_alloc(len*sizeof(WCHAR));
    MultiByteToWideChar(CP_ACP, 0, str, lenA, ret, len);
    ret[len-1] = 0;

    return ret;

static inline LPWSTR strdupAtoW(LPCSTR str)
    return strdupnAtoW(str, -1);

extern HINSTANCE hhctrl_hinstance;
extern BOOL hh_process;


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