dlls/mshtml/nsembed.c

   1 /*
   2  * Copyright 2005 Jacek Caban
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 #include "config.h"
  20
  21 #include <stdarg.h>
  22
  23 #define COBJMACROS
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winuser.h"
  28 #include "winreg.h"
  29 #include "ole2.h"
  30 #include "docobj.h"
  31
  32 #include "mshtml.h"
  33 #include "mshtmhst.h"
  34
  35 #include "wine/debug.h"
  36 #include "wine/unicode.h"
  37
  38 #include "mshtml_private.h"
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
  41
  42 DEFINE_GUID(CLSID_StartupNotifier, 0x1f59b001,0x02c9,0x11d5,0xae,0x76,0xcc,0x92,0xf7,0xdb,0x9e,0x03);
  43 DEFINE_GUID(CLSID_nsWebBrowser, 0xf1eac761,0x87e9,0x11d3,0xaf,0x80,0x00,0xa0,0x24,0xff,0xc0,0x8c);
  44
  45 #define NS_APPSTARTUPNOTIFIER_CONTRACTID "@mozilla.org/embedcomp/appstartup-notifier;1"
  46 #define NS_WEBBROWSER_CONTRACTID "@mozilla.org/embedding/browser/nsWebBrowser;1"
  47
  48 #define APPSTARTUP_TOPIC "app-startup"
  49
  50 #define PR_UINT32_MAX 0xffffffff
  51
  52 typedef struct {
  53     void *d1;
  54     PRUint32 d2;
  55     void *d3;
  56 } nsString;
  57
  58 static nsresult (*NS_InitXPCOM2)(nsIServiceManager**,void*,void*);
  59 static nsresult (*NS_ShutdownXPCOM)(nsIServiceManager*);
  60 static nsresult (*NS_StringContainerInit)(nsString*);
  61 static nsresult (*NS_StringContainerFinish)(nsString*);
  62 static nsresult (*NS_StringSetData)(nsString*,const PRUnichar*,PRUint32);
  63 static nsresult (*NS_NewLocalFile)(const nsString*,PRBool,nsIFile**);
  64
  65 static HINSTANCE hXPCOM = NULL;
  66
  67 static nsIServiceManager *pServMgr = NULL;
  68 static nsIComponentManager *pCompMgr = NULL;
  69
  70 static BOOL get_mozilla_path(PRUnichar *gre_path)
  71 {
  72     DWORD res, type, i, size = MAX_PATH;
  73     HKEY mozilla_key, hkey;
  74     WCHAR key_name[100];
  75     BOOL ret = FALSE;
  76
  77     static const WCHAR wszGreKey[] =
  78         {'S','o','f','t','w','a','r','e','\\',
  79             'm','o','z','i','l','l','a','.','o','r','g','\\',
  80                 'G','R','E',0};
  81
  82     static const WCHAR wszGreHome[] = {'G','r','e','H','o','m','e',0};
  83
  84     res = RegOpenKeyW(HKEY_LOCAL_MACHINE, wszGreKey, &mozilla_key);
  85     if(res != ERROR_SUCCESS) {
  86         TRACE("Could not open key %s\n", debugstr_w(wszGreKey));
  87         return FALSE;
  88     }
  89
  90     for(i=0; !ret && RegEnumKeyW(mozilla_key, i, key_name, sizeof(key_name)/sizeof(WCHAR)) == ERROR_SUCCESS; i++) {
  91         RegOpenKeyW(mozilla_key, key_name, &hkey);
  92         res = RegQueryValueExW(hkey, wszGreHome, NULL, &type, (LPBYTE)gre_path, &size);
  93         if(res == ERROR_SUCCESS)
  94             ret = TRUE;
  95         RegCloseKey(hkey);
  96     }
  97
  98     RegCloseKey(mozilla_key);
  99     return ret;
 100 }
 101
 102 static BOOL get_mozctl_path(PRUnichar *gre_path)
 103 {
 104     HKEY hkey;
 105     DWORD res, type, size = MAX_PATH;
 106
 107     static const WCHAR wszMozCtlKey[] =
 108         {'S','o','f','t','w','a','r','e','\\','M','o','z','i','l','l','a',0};
 109     static const WCHAR wszBinDirectoryPath[] =
 110         {'B','i','n','D','i','r','e','c','t','o','r','y','P','a','t','h',0};
 111
 112     res = RegOpenKeyW(HKEY_LOCAL_MACHINE, wszMozCtlKey, &hkey);
 113     if(res != ERROR_SUCCESS) {
 114         TRACE("Could not open key %s\n", debugstr_w(wszMozCtlKey));
 115         return FALSE;
 116     }
 117
 118     res = RegQueryValueExW(hkey, wszBinDirectoryPath, NULL, &type, (LPBYTE)gre_path, &size);
 119     if(res != ERROR_SUCCESS) {
 120         ERR("Could not get value %s\n", debugstr_w(wszBinDirectoryPath));
 121         return FALSE;
 122     }
 123
 124     return TRUE;
 125 }
 126
 127
 128
 129 static BOOL load_gecko()
 130 {
 131     nsresult nsres;
 132     nsIObserver *pStartNotif;
 133     nsString path;
 134     nsIFile *gre_dir;
 135     PRUnichar gre_path[MAX_PATH];
 136
 137     static BOOL tried_load = FALSE;
 138     static const WCHAR strXPCOM[] = {'x','p','c','o','m','.','d','l','l',0};
 139
 140     TRACE("()\n");
 141
 142     if(tried_load)
 143         return pCompMgr != NULL;
 144     tried_load = TRUE;
 145
 146     if(!(get_mozctl_path(gre_path) || get_mozilla_path(gre_path))) {
 147         MESSAGE("Could not load Mozilla. HTML rendering will be disabled.\n");
 148         return FALSE;
 149     }
 150
 151     TRACE("found path %s\n", debugstr_w(gre_path));
 152
 153     hXPCOM = LoadLibraryW(strXPCOM);
 154     if(!hXPCOM) {
 155         /* We have to modify PATH as XPCOM loads other DLLs from this directory. */
 156         WCHAR path_env[MAX_PATH];
 157         static WCHAR wszPATH[] = {'P','A','T','H',0};
 158         int len;
 159
 160         TRACE("here\n");
 161
 162         GetEnvironmentVariableW(wszPATH, path_env, sizeof(path_env)/sizeof(WCHAR));
 163         len = strlenW(path_env);
 164         path_env[len++] = ';';
 165         strcpyW(path_env+len, gre_path);
 166         SetEnvironmentVariableW(wszPATH, path_env);
 167
 168         hXPCOM = LoadLibraryW(strXPCOM);
 169         if(!hXPCOM) {
 170             ERR("Could not load XPCOM: %ld\n", GetLastError());
 171             return FALSE;
 172         }
 173     }
 174
 175 #define NS_DLSYM(func) \
 176     func = (typeof(func))GetProcAddress(hXPCOM, #func); \
 177     if(!func) \
 178         ERR("Could not GetProcAddress(" #func ") failed\n");
 179
 180     NS_DLSYM(NS_InitXPCOM2)
 181     NS_DLSYM(NS_ShutdownXPCOM)
 182     NS_DLSYM(NS_StringContainerInit)
 183     NS_DLSYM(NS_StringContainerFinish)
 184     NS_DLSYM(NS_StringSetData)
 185     NS_DLSYM(NS_NewLocalFile)
 186
 187 #undef NS_DLSYM
 188
 189     NS_StringContainerInit(&path);
 190     NS_StringSetData(&path, gre_path, PR_UINT32_MAX);
 191     nsres = NS_NewLocalFile(&path, FALSE, &gre_dir);
 192     NS_StringContainerFinish(&path);
 193     if(NS_FAILED(nsres)) {
 194         ERR("NS_NewLocalFile failed: %08lx\n", nsres);
 195         FreeLibrary(hXPCOM);
 196         return FALSE;
 197     }
 198
 199     nsres = NS_InitXPCOM2(&pServMgr, gre_dir, NULL);
 200     if(NS_FAILED(nsres)) {
 201         ERR("NS_InitXPCOM2 failed: %08lx\n", nsres);
 202         FreeLibrary(hXPCOM);
 203         return FALSE;
 204     }
 205
 206     nsres = nsIServiceManager_QueryInterface(pServMgr, &IID_nsIComponentManager, (void**)&pCompMgr);
 207     if(NS_FAILED(nsres))
 208         ERR("Could not get nsIComponentManager: %08lx\n", nsres);
 209
 210     nsres = nsIComponentManager_CreateInstanceByContractID(pCompMgr, NS_APPSTARTUPNOTIFIER_CONTRACTID,
 211             NULL, &IID_nsIObserver, (void**)&pStartNotif);
 212     if(NS_SUCCEEDED(nsres)) {
 213         nsres = nsIObserver_Observe(pStartNotif, NULL, APPSTARTUP_TOPIC, NULL);
 214         if(NS_FAILED(nsres))
 215             ERR("Observe failed: %08lx\n", nsres);
 216
 217         nsIObserver_Release(pStartNotif);
 218     }else {
 219         ERR("could not get appstartup-notifier: %08lx\n", nsres);
 220     }
 221
 222     return TRUE;
 223 }
 224
 225 void close_gecko()
 226 {
 227     TRACE("()\n");
 228
 229     if(pCompMgr)
 230         nsIComponentManager_Release(pCompMgr);
 231
 232     if(pServMgr)
 233         nsIServiceManager_Release(pServMgr);
 234
 235     if(hXPCOM)
 236         FreeLibrary(hXPCOM);
 237 }
 238
 239 void HTMLDocument_NSContainer_Init(HTMLDocument *This)
 240 {
 241     NSContainer *ret;
 242     nsIWebBrowserSetup *wbsetup;
 243     nsresult nsres;
 244
 245     This->nscontainer = NULL;
 246
 247     if(!load_gecko())
 248         return;
 249
 250     ret = HeapAlloc(GetProcessHeap(), 0, sizeof(NSContainer));
 251     ret->url = NULL;
 252
 253     nsres = nsIComponentManager_CreateInstanceByContractID(pCompMgr,
 254             NS_WEBBROWSER_CONTRACTID, NULL, &IID_nsIWebBrowser, (void**)&ret->webbrowser);
 255     if(NS_FAILED(nsres))
 256         ERR("Creating WebBrowser failed: %08lx\n", nsres);
 257
 258     nsres = nsIWebBrowser_QueryInterface(ret->webbrowser, &IID_nsIBaseWindow,
 259             (void**)&ret->window);
 260     if(NS_FAILED(nsres))
 261         ERR("Could not get nsIBaseWindow interface: %08lx\n", nsres);
 262
 263     nsres = nsIWebBrowser_QueryInterface(ret->webbrowser,
 264             &IID_nsIWebBrowserSetup, (void**)&wbsetup);
 265     if(NS_SUCCEEDED(nsres)) {
 266         nsres = nsIWebBrowserSetup_SetProperty(wbsetup, SETUP_IS_CHROME_WRAPPER, TRUE);
 267         if(NS_FAILED(nsres))
 268             ERR("SetProperty failed: %08lx\n", nsres);
 269         nsIWebBrowserSetup_Release(wbsetup);
 270     }else {
 271         ERR("Could not get nsIWebBrowserSetup interface\n");
 272     }
 273
 274     nsres = nsIWebBrowser_QueryInterface(ret->webbrowser, &IID_nsIWebNavigation,
 275             (void**)&ret->navigation);
 276     if(NS_FAILED(nsres))
 277         ERR("Could not get nsIWebNavigation interface: %08lx\n", nsres);
 278
 279     This->nscontainer = ret;
 280 }
 281
 282 void HTMLDocument_NSContainer_Destroy(HTMLDocument *This)
 283 {
 284     TRACE("(%p)\n", This);
 285
 286     nsIWebBrowser_Release(This->nscontainer->webbrowser);
 287     nsIWebNavigation_Release(This->nscontainer->navigation);
 288     nsIBaseWindow_Release(This->nscontainer->window);
 289
 290     HeapFree(GetProcessHeap(), 0, This->nscontainer);
 291 }