hhctrl.ocx: Added HH_HELP_CONTEXT implementation.

dlls/hhctrl.ocx/chm.c

@@ -146,6 +146,53 @@ static BOOL ReadChmSystem(CHMInfo *chm)
     return SUCCEEDED(hres);
 }
 
+LPWSTR FindContextAlias(CHMInfo *chm, DWORD index)
+{
+    IStream *ivb_stream;
+    DWORD size, read, i;
+    DWORD *buf;
+    LPCSTR ret = NULL;
+    HRESULT hres;
+
+    static const WCHAR wszIVB[] = {'#','I','V','B',0};
+
+    hres = IStorage_OpenStream(chm->pStorage, wszIVB, NULL, STGM_READ, 0, &ivb_stream);
+    if(FAILED(hres)) {
+        WARN("Could not open #IVB stream: %08x\n", hres);
+        return NULL;
+    }
+
+    hres = IStream_Read(ivb_stream, &size, sizeof(size), &read);
+    if(FAILED(hres)) {
+        WARN("Read failed: %08x\n", hres);
+        IStream_Release(ivb_stream);
+        return NULL;
+    }
+
+    buf = hhctrl_alloc(size);
+    hres = IStream_Read(ivb_stream, buf, size, &read);
+    IStream_Release(ivb_stream);
+    if(FAILED(hres)) {
+        WARN("Read failed: %08x\n", hres);
+        hhctrl_free(buf);
+        return NULL;
+    }
+
+    size /= 2*sizeof(DWORD);
+
+    for(i=0; i<size; i++) {
+        if(buf[2*i] == index) {
+            ret = GetChmString(chm, buf[2*i+1]);
+            break;
+        }
+    }
+
+    hhctrl_free(buf);
+
+    TRACE("returning %s\n", debugstr_a(ret));
+    return strdupAtoW(ret);
+}
+
 /* Loads the HH_WINTYPE data from the CHM file
  *
  * FIXME: There may be more than one window type in the file, so

dlls/hhctrl.ocx/help.c

@@ -57,15 +57,32 @@ static LPWSTR HH_LoadString(DWORD dwID)
     return string;
 }
 
+BOOL NavigateToUrl(HHInfo *info, LPCWSTR surl)
+{
+    VARIANT url;
+    HRESULT hres;
+
+    V_VT(&url) = VT_BSTR;
+    V_BSTR(&url) = SysAllocString(surl);
+
+    hres = IWebBrowser2_Navigate2(info->web_browser, &url, 0, 0, 0, 0);
+
+    VariantClear(&url);
+
+    return SUCCEEDED(hres);
+}
+
 BOOL NavigateToChm(HHInfo *info, LPCWSTR file, LPCWSTR index)
 {
     WCHAR buf[INTERNET_MAX_URL_LENGTH];
     WCHAR full_path[MAX_PATH];
-    VARIANT url;
+    LPWSTR ptr;
 
     static const WCHAR url_format[] =
         {'m','k',':','@','M','S','I','T','S','t','o','r','e',':','%','s',':',':','/','%','s',0};
 
+    TRACE("%p %s %s\n", info, debugstr_w(file), debugstr_w(index));
+
     if (!info->web_browser)
         return FALSE;
 
@@ -76,13 +93,11 @@ BOOL NavigateToChm(HHInfo *info, LPCWSTR file, LPCWSTR index)
 
     wsprintfW(buf, url_format, full_path, index);
 
-    V_VT(&url) = VT_BSTR;
-    V_BSTR(&url) = SysAllocString(buf);
-
-    IWebBrowser2_Navigate2(info->web_browser, &url, 0, 0, 0, 0);
-    VariantClear(&url);
+    /* FIXME: HACK */
+    if((ptr = strchrW(buf, '#')))
+       *ptr = 0;
 
-    return TRUE;
+    return NavigateToUrl(info, buf);
 }
 
 /* Size Bar */

dlls/hhctrl.ocx/hhctrl.c

@@ -2,6 +2,7 @@
  * hhctrl implementation
  *
  * Copyright 2004 Krzysztof Foltman
+ * 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
@@ -26,7 +27,7 @@
 WINE_DEFAULT_DEBUG_CHANNEL(htmlhelp);
 
 HINSTANCE hhctrl_hinstance;
-BOOL hh_process;
+BOOL hh_process = FALSE;
 
 BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD fdwReason, LPVOID lpvReserved)
 {
@@ -84,9 +85,11 @@ static const char *command_to_string(UINT command)
 #undef X
 }
 
+/******************************************************************
+ *		HtmlHelpW (hhctrl.ocx.15)
+ */
 HWND WINAPI HtmlHelpW(HWND caller, LPCWSTR filename, UINT command, DWORD data)
 {
-
     TRACE("(%p, %s, command=%s, data=%d)\n",
           caller, debugstr_w( filename ),
           command_to_string( command ), data);
@@ -95,8 +98,7 @@ HWND WINAPI HtmlHelpW(HWND caller, LPCWSTR filename, UINT command, DWORD data)
     {
     case HH_DISPLAY_TOPIC:
     case HH_DISPLAY_TOC:
-    case HH_DISPLAY_SEARCH:
-    case HH_HELP_CONTEXT: {
+    case HH_DISPLAY_SEARCH:{
         HHInfo *info;
         BOOL res;
 
@@ -110,6 +112,23 @@ HWND WINAPI HtmlHelpW(HWND caller, LPCWSTR filename, UINT command, DWORD data)
 
         return NULL; /* FIXME */
     }
+    case HH_HELP_CONTEXT: {
+        HHInfo *info;
+        LPWSTR url;
+
+        info = CreateHelpViewer(filename);
+        if(!info)
+            return NULL;
+
+        url = FindContextAlias(info->pCHMInfo, data);
+        if(!url)
+            return NULL;
+
+        NavigateToUrl(info, url);
+        hhctrl_free(url);
+
+        return NULL; /* FIXME */
+    }
     default:
         FIXME("HH case %s not handled.\n", command_to_string( command ));
     }
@@ -117,6 +136,9 @@ HWND WINAPI HtmlHelpW(HWND caller, LPCWSTR filename, UINT command, DWORD data)
     return 0;
 }
 
+/******************************************************************
+ *		HtmlHelpA (hhctrl.ocx.14)
+ */
 HWND WINAPI HtmlHelpA(HWND caller, LPCSTR filename, UINT command, DWORD data)
 {
     WCHAR *wfile = NULL;

dlls/hhctrl.ocx/hhctrl.h

@@ -79,9 +79,11 @@ void DoPageAction(HHInfo*,DWORD);
 CHMInfo *OpenCHM(LPCWSTR szFile);
 BOOL LoadWinTypeFromCHM(CHMInfo *pCHMInfo, HH_WINTYPEW *pHHWinType);
 CHMInfo *CloseCHM(CHMInfo *pCHMInfo);
+LPWSTR FindContextAlias(CHMInfo*,DWORD);
 
 HHInfo *CreateHelpViewer(LPCWSTR);
 void ReleaseHelpViewer(HHInfo*);
+BOOL NavigateToUrl(HHInfo*,LPCWSTR);
 BOOL NavigateToChm(HHInfo*,LPCWSTR,LPCWSTR);
 
 /* memory allocation functions */