X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a1b8f5489d86db1051d3640101da12456eaa099c..300b5dfabc6f7f0d9fc3f7865374b43e79c8f465:/src/msw/helpchm.cpp diff --git a/src/msw/helpchm.cpp b/src/msw/helpchm.cpp index d163c2f196..ab91913ff2 100644 --- a/src/msw/helpchm.cpp +++ b/src/msw/helpchm.cpp @@ -6,40 +6,141 @@ // 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" -// This is found in the HTML Help Workshop installation, -// along with htmlhelp.lib. -#include +#include "wx/dynlib.h" -#include +#ifndef WX_PRECOMP + #include "wx/intl.h" + #include "wx/app.h" +#endif -#ifdef __WXMSW__ #include "wx/msw/private.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 // ANSI + typedef HWND ( WINAPI * HTMLHELP )( HWND, LPCWSTR, UINT, DWORD ); + #define HTMLHELP_NAME "HtmlHelpW" #endif -#include +// dll symbol handle +static HTMLHELP gs_htmlHelp = 0; + +static bool LoadHtmlHelpLibrary() +{ + wxPluginLibrary *lib = wxPluginManager::LoadLibrary( _T("HHCTRL.OCX"), wxDL_DEFAULT | wxDL_VERBATIM ); + + 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_htmlHelp = (HTMLHELP)lib->GetSymbol( HTMLHELP_NAME ); + + if( !gs_htmlHelp ) + { + wxLogError(_("Failed to initialize MS HTML Help.")); + + lib->UnrefLib(); + return FALSE ; + } + } + + return TRUE; +} + +static void UnloadHtmlHelpLibrary() +{ + if ( gs_htmlHelp ) + { + wxPluginManager::UnloadLibrary( _T("HHCTRL.OCX") ); + + gs_htmlHelp = 0; + } +} static HWND GetSuitableHWND() { @@ -53,6 +154,10 @@ IMPLEMENT_DYNAMIC_CLASS(wxCHMHelpController, wxHelpControllerBase) bool wxCHMHelpController::Initialize(const wxString& filename) { + // warn on failure + if( !LoadHtmlHelpLibrary() ) + return FALSE; + m_helpFile = filename; return TRUE; } @@ -70,7 +175,7 @@ bool wxCHMHelpController::DisplayContents() wxString str = GetValidFilename(m_helpFile); - HtmlHelp(GetSuitableHWND(), (const wxChar*) str, HH_HELP_FINDER, 0L); + gs_htmlHelp(GetSuitableHWND(), (const wxChar*) str, HH_DISPLAY_TOPIC, 0L); return TRUE; } @@ -85,7 +190,7 @@ bool wxCHMHelpController::DisplaySection(const wxString& section) bool isFilename = (section.Find(wxT(".htm")) != -1); if (isFilename) - HtmlHelp(GetSuitableHWND(), (const wxChar*) str, HH_DISPLAY_TOPIC, (DWORD) (const wxChar*) section); + gs_htmlHelp(GetSuitableHWND(), (const wxChar*) str, HH_DISPLAY_TOPIC, (DWORD) (const wxChar*) section); else KeywordSearch(section); return TRUE; @@ -98,7 +203,7 @@ bool wxCHMHelpController::DisplaySection(int section) wxString str = GetValidFilename(m_helpFile); - HtmlHelp(GetSuitableHWND(), (const wxChar*) str, HH_HELP_CONTEXT, (DWORD)section); + gs_htmlHelp(GetSuitableHWND(), (const wxChar*) str, HH_HELP_CONTEXT, (DWORD)section); return TRUE; } @@ -117,13 +222,13 @@ bool wxCHMHelpController::DisplayContextPopup(int contextId) popup.idString = contextId ; GetCursorPos(& popup.pt); - popup.clrForeground = -1; - popup.clrBackground = -1; + popup.clrForeground = (COLORREF)-1; + popup.clrBackground = (COLORREF)-1; popup.rcMargins.top = popup.rcMargins.left = popup.rcMargins.right = popup.rcMargins.bottom = -1; popup.pszFont = NULL; popup.pszText = NULL; - HtmlHelp(GetSuitableHWND(), (const wxChar*) str, HH_DISPLAY_TEXT_POPUP, (DWORD) & popup); + gs_htmlHelp(GetSuitableHWND(), (const wxChar*) str, HH_DISPLAY_TEXT_POPUP, (DWORD) & popup); return TRUE; } @@ -134,13 +239,13 @@ bool wxCHMHelpController::DisplayTextPopup(const wxString& text, const wxPoint& popup.hinst = (HINSTANCE) wxGetInstance(); popup.idString = 0 ; popup.pt.x = pos.x; popup.pt.y = pos.y; - popup.clrForeground = -1; - popup.clrBackground = -1; + popup.clrForeground = (COLORREF)-1; + popup.clrBackground = (COLORREF)-1; popup.rcMargins.top = popup.rcMargins.left = popup.rcMargins.right = popup.rcMargins.bottom = -1; popup.pszFont = NULL; popup.pszText = (const wxChar*) text; - HtmlHelp(GetSuitableHWND(), NULL, HH_DISPLAY_TEXT_POPUP, (DWORD) & popup); + gs_htmlHelp(GetSuitableHWND(), NULL, HH_DISPLAY_TEXT_POPUP, (DWORD) & popup); return TRUE; } @@ -165,13 +270,14 @@ bool wxCHMHelpController::KeywordSearch(const wxString& k) link.pszWindow = NULL ; link.fIndexOnFail = TRUE ; - HtmlHelp(GetSuitableHWND(), (const wxChar*) str, HH_KEYWORD_LOOKUP, (DWORD)& link); + gs_htmlHelp(GetSuitableHWND(), (const wxChar*) str, HH_KEYWORD_LOOKUP, (DWORD)& link); return TRUE; } bool wxCHMHelpController::Quit() { - HtmlHelp(GetSuitableHWND(), 0, HH_CLOSE_ALL, 0L); + gs_htmlHelp(GetSuitableHWND(), 0, HH_CLOSE_ALL, 0L); + return TRUE; } @@ -191,4 +297,10 @@ wxString wxCHMHelpController::GetValidFilename(const wxString& file) const return fullName; } +wxCHMHelpController::~wxCHMHelpController() +{ + UnloadHtmlHelpLibrary(); +} + #endif // wxUSE_HELP +