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[wxWidgets.git] / src / msw / helpchm.cpp

diff --git a/src/msw/helpchm.cpp b/src/msw/helpchm.cpp
index d8e5426f5aae964cafceece585900b8c44266e86..ab91913ff24365adea9ffca20f9620246aa52724 100644 (file)
--- a/src/msw/helpchm.cpp
+++ b/src/msw/helpchm.cpp
@@ -6,90 +6,127 @@
 // Created:     16/04/2000
 // RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart
-// Licence:    wxWindows licence
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__
-#pragma implementation "helpchm.h"
+    #pragma implementation "helpchm.h"
 #endif
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-#pragma hdrstop
+    #pragma hdrstop
 #endif
 
-#ifndef WX_PRECOMP
-#include "wx/defs.h"
-#endif
+#if wxUSE_HELP && wxUSE_MS_HTML_HELP && defined(__WIN95__)
 
 #include "wx/filefn.h"
-
-#if wxUSE_HELP && wxUSE_MS_HTML_HELP && defined(__WIN95__)
 #include "wx/msw/helpchm.h"
+
 #include "wx/dynlib.h"
- 
+
 #ifndef WX_PRECOMP
-#include <windows.h>
+    #include "wx/intl.h"
+    #include "wx/app.h"
 #endif
 
-// This is found in the HTML Help Workshop installation,
-// along with htmlhelp.lib.
-#include <htmlhelp.h>
-
-#include <time.h>
-
-#ifdef __WXMSW__
 #include "wx/msw/private.h"
-#endif
 
-#include <string.h>
+// instead of including htmlhelp.h, duplicate the things from it we need here
 
+enum
+{
+    HH_DISPLAY_TOPIC,
+    HH_DISPLAY_TOC,
+    HH_DISPLAY_INDEX,
+    HH_DISPLAY_SEARCH,
+    HH_SET_WIN_TYPE,
+    HH_GET_WIN_TYPE,
+    HH_GET_WIN_HANDLE,
+    HH_ENUM_INFO_TYPE,
+    HH_SET_INFO_TYPE,
+    HH_SYNC,
+    HH_RESERVED1,
+    HH_RESERVED2,
+    HH_RESERVED3,
+    HH_KEYWORD_LOOKUP,
+    HH_DISPLAY_TEXT_POPUP,
+    HH_HELP_CONTEXT,
+    HH_TP_HELP_CONTEXTMENU,
+    HH_TP_HELP_WM_HELP,
+    HH_CLOSE_ALL,
+    HH_ALINK_LOOKUP,
+    HH_GET_LAST_ERROR,
+    HH_ENUM_CATEGORY,
+    HH_ENUM_CATEGORY_IT,
+    HH_RESET_IT_FILTER,
+    HH_SET_INCLUSIVE_FILTER,
+    HH_SET_EXCLUSIVE_FILTER
+};
+
+struct HH_POPUP
+{
+    int       cbStruct;
+    HINSTANCE hinst;
+    UINT      idString;
+    LPCTSTR   pszText;
+    POINT     pt;
+    COLORREF  clrForeground;
+    COLORREF  clrBackground;
+    RECT      rcMargins;
+    LPCTSTR   pszFont;
+};
+
+struct HH_AKLINK
+{
+    int       cbStruct;
+    BOOL      fReserved;
+    LPCTSTR   pszKeywords;
+    LPCTSTR   pszUrl;
+    LPCTSTR   pszMsgText;
+    LPCTSTR   pszMsgTitle;
+    LPCTSTR   pszWindow;
+    BOOL      fIndexOnFail;
+};
+
+// ----------------------------------------------------------------------------
 // utility functions to manage the loading/unloading
 // of hhctrl.ocx
+// ----------------------------------------------------------------------------
+
 #ifndef UNICODE
-typedef HWND ( WINAPI * HTMLHELP )( HWND, LPCSTR, UINT, DWORD );
-#define HTMLHELP_NAME "HtmlHelpA"
-#else
-typedef HWND ( WINAPI * HTMLHELP )( HWND, LPCWSTR, UINT, DWORD );
-#define HTMLHELP_NAME "HtmlHelpW"
+    typedef HWND ( WINAPI * HTMLHELP )( HWND, LPCSTR, UINT, DWORD );
+    #define HTMLHELP_NAME "HtmlHelpA"
+#else // ANSI
+    typedef HWND ( WINAPI * HTMLHELP )( HWND, LPCWSTR, UINT, DWORD );
+    #define HTMLHELP_NAME "HtmlHelpW"
 #endif
-// dll handle/reference count
+
+// dll symbol handle
 static HTMLHELP gs_htmlHelp = 0;
-static wxDllType gs_dllHandle = 0;
-static int gs_dllCount = 0;
 
 static bool LoadHtmlHelpLibrary()
 {
-    if( !gs_dllCount )
-    {
-        gs_dllHandle = wxDllLoader::LoadLibrary( "hhctrl.ocx" );
-        if( !gs_dllHandle )
-        {
-            wxLogError(_("MS HTML Help functions are unavailable because the MS HTML Help library is not installed on this machine. Please install it."));
-            return FALSE;
-        }
-        else
-        {
-            gs_dllCount = 1;
-            gs_htmlHelp = (HTMLHELP)wxDllLoader::GetSymbol( gs_dllHandle, HTMLHELP_NAME );
-
-            if( !gs_htmlHelp )
-            {
-                wxLogError(_("Failed to initialize MS HTML Help."));
-
-                wxDllLoader::UnloadLibrary(gs_dllHandle);
-                gs_dllHandle = 0;
-                gs_dllCount = 0;
+    wxPluginLibrary *lib = wxPluginManager::LoadLibrary( _T("HHCTRL.OCX"), wxDL_DEFAULT | wxDL_VERBATIM );
 
-                return FALSE ;
-            }
-        }
+    if( !lib )
+    {
+        wxLogError(_("MS HTML Help functions are unavailable because the MS HTML Help library is not installed on this machine. Please install it."));
+        return FALSE;
     }
     else
     {
-        ++gs_dllCount;
+        gs_htmlHelp = (HTMLHELP)lib->GetSymbol( HTMLHELP_NAME );
+
+        if( !gs_htmlHelp )
+        {
+            wxLogError(_("Failed to initialize MS HTML Help."));
+
+            lib->UnrefLib();
+            return FALSE ;
+        }
     }
 
     return TRUE;
@@ -97,10 +134,10 @@ static bool LoadHtmlHelpLibrary()
 
 static void UnloadHtmlHelpLibrary()
 {
-    if( gs_dllCount != 0 && !--gs_dllCount )
+    if ( gs_htmlHelp )
     {
-        wxDllLoader::UnloadLibrary( gs_dllHandle );
-        gs_dllHandle = 0;
+        wxPluginManager::UnloadLibrary( _T("HHCTRL.OCX") );
+
         gs_htmlHelp = 0;
     }
 }
@@ -138,7 +175,7 @@ bool wxCHMHelpController::DisplayContents()
 
     wxString str = GetValidFilename(m_helpFile);
 
-    gs_htmlHelp(GetSuitableHWND(), (const wxChar*) str, HH_HELP_FINDER, 0L);
+    gs_htmlHelp(GetSuitableHWND(), (const wxChar*) str, HH_DISPLAY_TOPIC, 0L);
     return TRUE;
 }
 
@@ -240,7 +277,6 @@ bool wxCHMHelpController::KeywordSearch(const wxString& k)
 bool wxCHMHelpController::Quit()
 {
     gs_htmlHelp(GetSuitableHWND(), 0, HH_CLOSE_ALL, 0L);
-    UnloadHtmlHelpLibrary();
 
     return TRUE;
 }
@@ -261,4 +297,10 @@ wxString wxCHMHelpController::GetValidFilename(const wxString& file) const
     return fullName;
 }
 
+wxCHMHelpController::~wxCHMHelpController()
+{
+    UnloadHtmlHelpLibrary();
+}
+
 #endif // wxUSE_HELP
+