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 const WCHAR wszNsContainer[] = {'N','s','C','o','n','t','a','i','n','e','r',0};
  71
  72 static ATOM nscontainer_class;
  73
  74 static LRESULT WINAPI nsembed_proc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
  75 {
  76     HTMLDocument *This;
  77     nsresult nsres;
  78
  79     static const WCHAR wszTHIS[] = {'T','H','I','S',0};
  80
  81     if(msg == WM_CREATE) {
  82         This = *(HTMLDocument**)lParam;
  83         SetPropW(hwnd, wszTHIS, This);
  84     }else {
  85         This = (HTMLDocument*)GetPropW(hwnd, wszTHIS);
  86     }
  87
  88     switch(msg) {
  89         case WM_SIZE:
  90             TRACE("(%p)->(WM_SIZE)\n", This);
  91
  92             nsres = nsIBaseWindow_SetSize(This->nscontainer->window,
  93                     LOWORD(lParam), HIWORD(lParam), TRUE);
  94             if(NS_FAILED(nsres))
  95                 WARN("SetSize failed: %08lx\n", nsres);
  96     }
  97
  98     return DefWindowProcW(hwnd, msg, wParam, lParam);
  99 }
 100
 101
 102 static void register_nscontainer_class(void)
 103 {
 104     static WNDCLASSEXW wndclass = {
 105         sizeof(WNDCLASSEXW),
 106         CS_DBLCLKS,
 107         nsembed_proc,
 108         0, 0, NULL, NULL, NULL, NULL, NULL,
 109         wszNsContainer,
 110         NULL,
 111     };
 112     wndclass.hInstance = hInst;
 113     nscontainer_class = RegisterClassExW(&wndclass);
 114 }
 115
 116 static BOOL get_mozilla_path(PRUnichar *gre_path)
 117 {
 118     DWORD res, type, i, size = MAX_PATH;
 119     HKEY mozilla_key, hkey;
 120     WCHAR key_name[100];
 121     BOOL ret = FALSE;
 122
 123     static const WCHAR wszGreKey[] =
 124         {'S','o','f','t','w','a','r','e','\\',
 125             'm','o','z','i','l','l','a','.','o','r','g','\\',
 126                 'G','R','E',0};
 127
 128     static const WCHAR wszGreHome[] = {'G','r','e','H','o','m','e',0};
 129
 130     res = RegOpenKeyW(HKEY_LOCAL_MACHINE, wszGreKey, &mozilla_key);
 131     if(res != ERROR_SUCCESS) {
 132         TRACE("Could not open key %s\n", debugstr_w(wszGreKey));
 133         return FALSE;
 134     }
 135
 136     for(i=0; !ret && RegEnumKeyW(mozilla_key, i, key_name, sizeof(key_name)/sizeof(WCHAR)) == ERROR_SUCCESS; i++) {
 137         RegOpenKeyW(mozilla_key, key_name, &hkey);
 138         res = RegQueryValueExW(hkey, wszGreHome, NULL, &type, (LPBYTE)gre_path, &size);
 139         if(res == ERROR_SUCCESS)
 140             ret = TRUE;
 141         RegCloseKey(hkey);
 142     }
 143
 144     RegCloseKey(mozilla_key);
 145     return ret;
 146 }
 147
 148 static BOOL get_mozctl_path(PRUnichar *gre_path)
 149 {
 150     HKEY hkey;
 151     DWORD res, type, size = MAX_PATH;
 152
 153     static const WCHAR wszMozCtlKey[] =
 154         {'S','o','f','t','w','a','r','e','\\','M','o','z','i','l','l','a',0};
 155     static const WCHAR wszBinDirectoryPath[] =
 156         {'B','i','n','D','i','r','e','c','t','o','r','y','P','a','t','h',0};
 157
 158     res = RegOpenKeyW(HKEY_LOCAL_MACHINE, wszMozCtlKey, &hkey);
 159     if(res != ERROR_SUCCESS) {
 160         TRACE("Could not open key %s\n", debugstr_w(wszMozCtlKey));
 161         return FALSE;
 162     }
 163
 164     res = RegQueryValueExW(hkey, wszBinDirectoryPath, NULL, &type, (LPBYTE)gre_path, &size);
 165     if(res != ERROR_SUCCESS) {
 166         ERR("Could not get value %s\n", debugstr_w(wszBinDirectoryPath));
 167         return FALSE;
 168     }
 169
 170     return TRUE;
 171 }
 172
 173 static BOOL load_gecko()
 174 {
 175     nsresult nsres;
 176     nsIObserver *pStartNotif;
 177     nsString path;
 178     nsIFile *gre_dir;
 179     PRUnichar gre_path[MAX_PATH];
 180
 181     static BOOL tried_load = FALSE;
 182     static const WCHAR strXPCOM[] = {'x','p','c','o','m','.','d','l','l',0};
 183
 184     TRACE("()\n");
 185
 186     if(tried_load)
 187         return pCompMgr != NULL;
 188     tried_load = TRUE;
 189
 190     if(!get_mozctl_path(gre_path) && !get_mozilla_path(gre_path)) {
 191         MESSAGE("Could not load Mozilla. HTML rendering will be disabled.\n");
 192         return FALSE;
 193     }
 194
 195     TRACE("found path %s\n", debugstr_w(gre_path));
 196
 197     hXPCOM = LoadLibraryW(strXPCOM);
 198     if(!hXPCOM) {
 199         /* We have to modify PATH as XPCOM loads other DLLs from this directory. */
 200         WCHAR path_env[MAX_PATH];
 201         static WCHAR wszPATH[] = {'P','A','T','H',0};
 202         int len;
 203
 204         GetEnvironmentVariableW(wszPATH, path_env, sizeof(path_env)/sizeof(WCHAR));
 205         len = strlenW(path_env);
 206         path_env[len++] = ';';
 207         strcpyW(path_env+len, gre_path);
 208         SetEnvironmentVariableW(wszPATH, path_env);
 209
 210         hXPCOM = LoadLibraryW(strXPCOM);
 211         if(!hXPCOM) {
 212             ERR("Could not load XPCOM: %ld\n", GetLastError());
 213             return FALSE;
 214         }
 215     }
 216
 217 #define NS_DLSYM(func) \
 218     func = (typeof(func))GetProcAddress(hXPCOM, #func); \
 219     if(!func) \
 220         ERR("Could not GetProcAddress(" #func ") failed\n");
 221
 222     NS_DLSYM(NS_InitXPCOM2)
 223     NS_DLSYM(NS_ShutdownXPCOM)
 224     NS_DLSYM(NS_StringContainerInit)
 225     NS_DLSYM(NS_StringContainerFinish)
 226     NS_DLSYM(NS_StringSetData)
 227     NS_DLSYM(NS_NewLocalFile)
 228
 229 #undef NS_DLSYM
 230
 231     NS_StringContainerInit(&path);
 232     NS_StringSetData(&path, gre_path, PR_UINT32_MAX);
 233     nsres = NS_NewLocalFile(&path, FALSE, &gre_dir);
 234     NS_StringContainerFinish(&path);
 235     if(NS_FAILED(nsres)) {
 236         ERR("NS_NewLocalFile failed: %08lx\n", nsres);
 237         FreeLibrary(hXPCOM);
 238         return FALSE;
 239     }
 240
 241     nsres = NS_InitXPCOM2(&pServMgr, gre_dir, NULL);
 242     if(NS_FAILED(nsres)) {
 243         ERR("NS_InitXPCOM2 failed: %08lx\n", nsres);
 244         FreeLibrary(hXPCOM);
 245         return FALSE;
 246     }
 247
 248     nsres = nsIServiceManager_QueryInterface(pServMgr, &IID_nsIComponentManager, (void**)&pCompMgr);
 249     if(NS_FAILED(nsres))
 250         ERR("Could not get nsIComponentManager: %08lx\n", nsres);
 251
 252     nsres = nsIComponentManager_CreateInstanceByContractID(pCompMgr, NS_APPSTARTUPNOTIFIER_CONTRACTID,
 253             NULL, &IID_nsIObserver, (void**)&pStartNotif);
 254     if(NS_SUCCEEDED(nsres)) {
 255         nsres = nsIObserver_Observe(pStartNotif, NULL, APPSTARTUP_TOPIC, NULL);
 256         if(NS_FAILED(nsres))
 257             ERR("Observe failed: %08lx\n", nsres);
 258
 259         nsIObserver_Release(pStartNotif);
 260     }else {
 261         ERR("could not get appstartup-notifier: %08lx\n", nsres);
 262     }
 263
 264     return TRUE;
 265 }
 266
 267 void close_gecko()
 268 {
 269     TRACE("()\n");
 270
 271     if(pCompMgr)
 272         nsIComponentManager_Release(pCompMgr);
 273
 274     if(pServMgr)
 275         nsIServiceManager_Release(pServMgr);
 276
 277     if(hXPCOM)
 278         FreeLibrary(hXPCOM);
 279 }
 280
 281 void HTMLDocument_NSContainer_Init(HTMLDocument *This)
 282 {
 283     nsIWebBrowserSetup *wbsetup;
 284     nsresult nsres;
 285
 286     This->nscontainer = NULL;
 287
 288     if(!load_gecko())
 289         return;
 290
 291     This->nscontainer = HeapAlloc(GetProcessHeap(), 0, sizeof(NSContainer));
 292
 293     nsres = nsIComponentManager_CreateInstanceByContractID(pCompMgr, NS_WEBBROWSER_CONTRACTID,
 294             NULL, &IID_nsIWebBrowser, (void**)&This->nscontainer->webbrowser);
 295     if(NS_FAILED(nsres))
 296         ERR("Creating WebBrowser failed: %08lx\n", nsres);
 297
 298     nsres = nsIWebBrowser_QueryInterface(This->nscontainer->webbrowser, &IID_nsIBaseWindow,
 299             (void**)&This->nscontainer->window);
 300     if(NS_FAILED(nsres))
 301         ERR("Could not get nsIBaseWindow interface: %08lx\n", nsres);
 302
 303     nsres = nsIWebBrowser_QueryInterface(This->nscontainer->webbrowser,
 304             &IID_nsIWebBrowserSetup, (void**)&wbsetup);
 305     if(NS_SUCCEEDED(nsres)) {
 306         nsres = nsIWebBrowserSetup_SetProperty(wbsetup, SETUP_IS_CHROME_WRAPPER, TRUE);
 307         if(NS_FAILED(nsres))
 308             ERR("SetProperty failed: %08lx\n", nsres);
 309         nsIWebBrowserSetup_Release(wbsetup);
 310     }else {
 311         ERR("Could not get nsIWebBrowserSetup interface\n");
 312     }
 313
 314     nsres = nsIWebBrowser_QueryInterface(This->nscontainer->webbrowser, &IID_nsIWebNavigation,
 315             (void**)&This->nscontainer->navigation);
 316     if(NS_FAILED(nsres))
 317         ERR("Could not get nsIWebNavigation interface: %08lx\n", nsres);
 318
 319     if(!nscontainer_class)
 320         register_nscontainer_class();
 321
 322     This->nscontainer->hwnd = CreateWindowExW(0, wszNsContainer, NULL,
 323             WS_CHILD | WS_CLIPSIBLINGS | WS_CLIPCHILDREN, 0, 0, 100, 100,
 324             GetDesktopWindow(), NULL, hInst, This);
 325
 326     nsres = nsIBaseWindow_InitWindow(This->nscontainer->window, This->nscontainer->hwnd, NULL,
 327             0, 0, 100, 100);
 328     if(NS_SUCCEEDED(nsres)) {
 329         nsres = nsIBaseWindow_Create(This->nscontainer->window);
 330         if(NS_FAILED(nsres))
 331             WARN("Creating window failed: %08lx\n", nsres);
 332
 333         nsIBaseWindow_SetVisibility(This->nscontainer->window, FALSE);
 334         nsIBaseWindow_SetEnabled(This->nscontainer->window, FALSE);
 335     }else {
 336         ERR("InitWindow failed: %08lx\n", nsres);
 337     }
 338 }
 339
 340 void HTMLDocument_NSContainer_Destroy(HTMLDocument *This)
 341 {
 342     TRACE("(%p)\n", This);
 343
 344     nsIWebBrowser_Release(This->nscontainer->webbrowser);
 345     nsIWebNavigation_Release(This->nscontainer->navigation);
 346     nsIBaseWindow_Release(This->nscontainer->window);
 347
 348     HeapFree(GetProcessHeap(), 0, This->nscontainer);
 349 }