Help -> Embedding XULRunner-1.9 in wxWidgets-2.8.7
amith raravi
I have been trying to write a sample code for embedding mozilla in
wxWidgets.
I dont seem to be able to embed Mozilla even though i follow all the steps
given in http://developer.mozilla.org/en/docs/XPCOM_Glue and
http://developer.mozilla.org/en/docs/GRE
I am running Ubuntu 8.04.
Code:
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif
#define XPCOM_GLUE
#include "xpcom-config.h"
#include "nsXPCOMGlue.h"
#include "nsDebug.h"
#include "nsCOMPtr.h"
#include "widget/nsIBaseWindow.h"
#include "nsILocalFile.h"
#include "nsIWebBrowser.h"
#include "docshell/nsIWebNavigation.h"
#include "nsEmbedCID.h"
#include "nsEmbedString.h"
#include "xulapp/nsXULAppAPI.h"
#include "nsComponentManagerUtils.h"
#define wxCSTR wxString::FromAscii
XRE_InitEmbeddingType XRE_InitEmbedding;
XRE_TermEmbeddingType XRE_TermEmbedding;
class MyApp : public wxApp
{
public:
virtual bool OnInit();
};
class MyFrame : public wxFrame
{
public:
MyFrame(const wxString& title);
void OnQuit(wxCommandEvent& event);
void OnAbout(wxCommandEvent& event);
private:
DECLARE_EVENT_TABLE()
};
enum
{
Minimal_Quit = wxID_EXIT,
Minimal_About = wxID_ABOUT
};
BEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_MENU(Minimal_Quit, MyFrame::OnQuit)
EVT_MENU(Minimal_About, MyFrame::OnAbout)
END_EVENT_TABLE()
IMPLEMENT_APP(MyApp)
bool MyApp::OnInit()
{
if ( !wxApp::OnInit() )
return false;
MyFrame *frame = new MyFrame(wxCSTR("Minimal wxWidgets App"));
SetTopWindow(frame);
frame->Show(true);
nsCOMPtr<nsIBaseWindow> baseWindow;
nsCOMPtr<nsIWebBrowser> webBrowser;
nsCOMPtr<nsILocalFile> libxul;
nsCOMPtr<nsILocalFile> appDir;
nsCOMPtr<nsIWebNavigation> webNavigation;
nsDynamicFunctionLoad nsFuncs[] = { {"XRE_InitEmbedding",
(NSFuncPtr*)&XRE_InitEmbedding},
{"XRE_TermEmbedding",
(NSFuncPtr*)&XRE_TermEmbedding},
{0, 0} };
nsresult rv;
rv = XPCOMGlueStartup("/home/raravi/xulrunner-sdk/bin/libxpcom.so");
if (NS_FAILED(rv))
{
printf("XPCOMGlueStartup\n");
}
rv = XPCOMGlueLoadXULFunctions(nsFuncs);
if (NS_FAILED(rv))
{
printf("XPCOMGlueLoadXULFunctions\n");
}
rv = NS_NewNativeLocalFile(
nsEmbedCString("/home/raravi/xulrunner-sdk/bin"), PR_FALSE,
getter_AddRefs(libxul));
if (NS_FAILED(rv))
{
printf("NS_NewNativeLocalFile\n");
}
rv = NS_NewNativeLocalFile(
nsEmbedCString("/home/raravi/NetBeansProjects/wxXULTest/dist/Debug/GNU-Linux-x86"),
PR_FALSE, getter_AddRefs(appDir));
if(NS_FAILED(rv))
{
printf("NS_NewNativeLocalFile\n");
}
rv = XRE_InitEmbedding(libxul, appDir, 0, 0, 0);
if (NS_FAILED(rv))
{
printf("XRE_InitEmbedding\n");
}
webBrowser = do_CreateInstance(NS_WEBBROWSER_CONTRACTID, &rv);
if (NS_FAILED(rv))
{
printf("do_CreateInstance webBrowser\n");
}
baseWindow = do_QueryInterface(webBrowser);
rv = baseWindow->InitWindow(frame, 0, 0, 0, 300, 400);
if (NS_FAILED(rv))
{
printf("InitWindow\n");
}
rv = baseWindow->Create();
if (NS_FAILED(rv))
{
printf("Create\n");
}
rv =baseWindow->SetVisibility(PR_TRUE);
if (NS_FAILED(rv))
{
printf("SetVisibility\n");
}
webNavigation = do_QueryInterface(webBrowser);
rv = webNavigation->LoadURI(NS_LITERAL_STRING("http://mail.yahoo.com/
").get(),
nsIWebNavigation::LOAD_FLAGS_NONE, 0, 0, 0);
if (NS_FAILED(rv))
{
printf("LoadURI\n");
}
return true;
}
MyFrame::MyFrame(const wxString& title)
: wxFrame(NULL, wxID_ANY, title)
{
wxMenu *fileMenu = new wxMenu;
wxMenu *helpMenu = new wxMenu;
wxMenuBar *menuBar = new wxMenuBar();
helpMenu->Append(Minimal_About, wxCSTR("&About...\tF1"), wxCSTR("Show
about dialog"));
fileMenu->Append(Minimal_Quit, wxCSTR("E&xit\tAlt-X"), wxCSTR("Quit this
program"));
menuBar->Append(fileMenu, wxCSTR("&File"));
menuBar->Append(helpMenu, wxCSTR("&Help"));
SetMenuBar(menuBar);
CreateStatusBar(2);
SetStatusText(wxCSTR("Welcome to wxWidgets!"));
}
void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
XRE_TermEmbedding();
XPCOMGlueShutdown();
Close(true);
}
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
wxMessageBox(wxCSTR("This is the minimal wxWidgets sample\n"),
wxCSTR("About wxWidgets minimal sample"),
wxOK | wxICON_INFORMATION,
this);
}
This code compiles and runs successfully. But when run, i dont see the
embedded mozilla window...:-(
Its as if i am running a normal wxWidgets app. What am i doing wrong?
These are the cmds i use.
g++ `wx-config --cppflags` -fshort-wchar -c -g
-I/home/raravi/xulrunner-sdk/sdk/include
-I/home/raravi/xulrunner-sdk/include -o
build/Debug/GNU-Linux-x86/_ext/home/raravi/NetBeansProjects/wxXULTest/wxXULTest.o
/home/raravi/NetBeansProjects/wxXULTest/wxXULTest.cpp
g++ `wx-config --cppflags` -fshort-wchar `wx-config --libs` -o
dist/Debug/GNU-Linux-x86/wxxultest
build/Debug/GNU-Linux-x86/_ext/home/raravi/NetBeansProjects/wxXULTest/wxXULTest.o
/home/raravi/xulrunner-sdk/lib/libxpcomglue.a
Any help would be greatly appreciately.
--
The most successful people are those who are good at plan B
rArAvi
pjohnsen
I don't really know much about wxWidgets, but I'm guessing the problem
is from this call:
rv = baseWindow->InitWindow(frame, 0, 0, 0, 300, 400);
InitWindow should get a native pointer/handler to the parent window.
For ubuntu I believe this should be a Gtk window handle. Maybe there
is a way to get that from the wxWidgets frame?
Hope this helps,
-Pelle
On Jul 4, 4:55 am, "amith raravi" <amith.rar...@gmail.com> wrote:
> Hi everyone.
>
> I have been trying to write a sample code for embedding mozilla in
> wxWidgets.
> I dont seem to be able to embed Mozilla even though i follow all the steps
> given inhttp://developer.mozilla.org/en/docs/XPCOM_Glueandhttp://developer.mozilla.org/en/docs/GRE
mlutken
Should help. I spend lot of time figuring this out and I am not quit
done yet.
Another thing you might need to do is responding to OnSize events:
void MyFrame::OnSize ( wxSizeEvent &pEvent )
{
wxRect newRect = this->GetClientRect();
baseWindow->SetPositionAndSize (
newRect.GetLeft(), newRect.GetTop(),
newRect.GetWidth(), newRect.GetHeight(), PR_FALSE );
}
This works for me. Well almost. I still need to manually resize the
window once it's created to get the Mozilla contents drawn.
Also when I exit I get some error messages from Gtk.
If you can figure out how to correct these errors please report the
fixes back here or to me directly :-)
-Martin
mlutken
(wxMinimal:10803): GLib-GObject-WARNING **: invalid uninstantiatable
type `(null)' in cast to `GtkWidget'
(wxMinimal:10803): Gtk-CRITICAL **: gtk_widget_hide: assertion
`GTK_IS_WIDGET (widget)' failed
(wxMinimal:10803): GLib-GObject-WARNING **: invalid uninstantiatable
type `(null)' in cast to `GtkWidget'
(wxMinimal:10803): GLib-GObject-WARNING **: instance of invalid non-
instantiatable type `(null)'
(wxMinimal:10803): GLib-GObject-CRITICAL **:
g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
(instance)' failed
(wxMinimal:10803): GLib-GObject-WARNING **: instance of invalid non-
instantiatable type `(null)'
(wxMinimal:10803): GLib-GObject-CRITICAL **:
g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
(instance)' failed
(wxMinimal:10803): GLib-GObject-WARNING **: invalid uninstantiatable
type `(null)' in cast to `GtkWidget'
(wxMinimal:10803): Gtk-CRITICAL **: gtk_widget_destroy: assertion
`GTK_IS_WIDGET (widget)' failed
Any help to get rid of these would be greatly appreciated :-)
-Martin Lütken
Amith Raravi
Thank you guys.
Now it loads fine.
And the OnSize function works well and displays the page.
On Jul 4, 4:35 pm, mlutken <nit...@lutken.dk> wrote:
> My errors whe exiting are these:
>
> ....
> (wxMinimal:10803): Gtk-CRITICAL **: gtk_widget_destroy: assertion
> `GTK_IS_WIDGET (widget)' failed
>
> Any help to get rid of these would be greatly appreciated :-)
>
> -Martin Lütken
I was getting those errors myself when i linked to these libs -lxul -
lsoftokn3 -lsqlite3 -lmozjs -lxpcomglue
I am not sure exactly why it happened.
Now i link only to -lxpcomglue.
-Amith Raravi
Amith Raravi
compile it in Windows, as wxWidgets is cross-platform...:-)
I made these changes to the above code:
=====================================================
1.rv = XPCOMGlueStartup("/home/raravi/xulrunner-sdk/bin/libxpcom.so");
to
rv = XPCOMGlueStartup("H:/Programming/xulrunner-1.9/dist-win/bin/
xpcom.dll");
2.rv = NS_NewNativeLocalFile(nsEmbedCString("/home/raravi/xulrunner-
sdk/bin"), PR_FALSE,getter_AddRefs(libxul));
to
rv = NS_NewNativeLocalFile( nsEmbedCString("H:/Programming/
xulrunner-1.9/dist-win/bin"), PR_FALSE,getter_AddRefs(libxul));
3.rv = NS_NewNativeLocalFile(nsEmbedCString("/home/raravi/
NetBeansProjects/wxXULTest/dist/Debug/GNU-Linux-x86"),PR_FALSE,
getter_AddRefs(appDir));
to
rv = NS_NewNativeLocalFile( nsEmbedCString("D:/Documents and
Settings/rArAvi/My Documents/Visual Studio 2005/Projects/wxXULTest/
wxXULTest"), PR_FALSE, getter_AddRefs(appDir));
4. rv = baseWindow->InitWindow(this->m_wxwindow, 0, 0, 0, 300, 400);
to
rv = baseWindow->InitWindow(this->GetHWND(), 0, 0, 0, 300, 400);
======================================================
I use the XP_WIN compiler flag.
And also /Zc:wchar_t- (Treat wchar_t as built-in type : No)
I use xpcomglue.lib only.
And also /NODEFAULTLIB:MSVCRT
But wxWidgets libraries need MSVCRT and i get lots of (more then 2000
actually) Unresolved External Symbol errors.
If i dont use /NODEFAULTLIB:MSVCRT, i get the followin error,
========================================================
MSVCRT.lib(crtexe.obj) : error LNK2001: unresolved external
symbol_main
=========================================================
How to solve this situation??
My application needs both wxWidgets and Mozilla. wxWidgets needs
MSVCRT but Mozilla does not.
Ps. I even compiled wxWidgets libs with /NODEFAULTLIB:MSVCRT, but it
doesnot change anything.
I use Visual Studio 2005 Express Edition on Windows 32bit XP with SP2.
wxWidgets is also compiled with /Zc:wchar_t- option.
Please help...
-Amith Raravi
pjohnsen
with some input from bsmedberg, I can now make it work for my app.
using static CRT libs, i.e. /MT or /MTd. I don't know if this would
work for wxWidgets though.
Hope this helps,
-Pelle
mlutken
I have a setup where I have compiled wxWidgets using my own makefiles
(CMake based) and the project for doing so is on sourceforge. It's a
collection of general 3rd party libraries and it build currently on
Linux and Windows. It also includes boost, zlib, Gtk, openssl etc. and
you can build static,dynamic,debug,release and all very easily - but I
am not at this point yet ready to support it. http://cpaf.sourceforge.net.
I got Mozilla working in wxWidgets with mozilla on both windows and
Linux - after some work :-)
I actually also compiled Mozilla/XulRunner myself on linux after
hacking the configure.in script to totally disable the -fshort-wchar
option for gcc since that gave me funny problems when linking with
wxWidgets on Linux. I could not make wx compile with this flag so I
compiled XulRunner without it instead.
You could try and check that out and build it. And I could even create
a release branch for you to get from via subversion. On Linux you
would probably need to install some things which I currently haven't
included/auto detected dependency for. Also I so far only compiled it
with VS2005, but it might work with the Express edition also.
-Martin
Amith Raravi
I have been looking at other options for building my app in windows.
Even if i use gcc(through mingw) i think i will be stuck with the same
problem.
I will try the /Mt option and get back to you shortly.
Ps. I have had no problems in linux, (except the native window handle
issue). I was busy for the past few days, but i will try out what you
have suggested and get back to you.
-Amith Raravi
Vlad
> nsEmbedCString("/home/raravi/NetBeansProjects/wxXULTest/dist/Debug/GNU-Linux-x86"),
> PR_FALSE, getter_AddRefs(appDir));
Out of curiosity, what do you have in the appDir foler? is it a XUL
application?
I am unable to find XRE_InitEmbedding documentation...
Thanks a lot!
Vlad
Amith Raravi
> > nsEmbedCString("/home/raravi/NetBeansProjects/wxXULTest/dist/Debug/GNU-Linux-x86"),
> > PR_FALSE, getter_AddRefs(appDir));
>
> Out of curiosity, what do you have in the appDir foler? is it a XUL
> application?
> I am unable to find XRE_InitEmbedding documentation...
Hey,
appDir contains my application binary.
-
Amith Raravi
steve lu
I am linking my embedding app against the FIREFOX_3_0_1_RELEASE and
MOZ_CO_PROJECT=xulrunner code base
and following libs.
nspr4.lib
plc4.lib
plds4.lib
xul.lib
xpcomglue.lib
profdirserviceprovidersa_s.lib
jpeg3250.lib
And with XPCOM_GLUE=1 defined, I am getting these link errors:
error LNK2019: unresolved external symbol "public: int __thiscall
nsRect::IntersectRect(struct nsRect const &,struct nsRect const &)"
(?IntersectRect@nsRect@@QAEHABU1@0@Z) referenced in function "public:
virtual void __thiscall BrowserFrame::threadUpdate(void)"
(?threadUpdate@BrowserFrame@@UAEXXZ)
error LNK2001: unresolved external symbol "public: int __thiscall
nsRect::IntersectRect(struct nsRect const &,struct nsRect const &)"
(?IntersectRect@nsRect@@QAEHABU1@0@Z)
error LNK2019: unresolved external symbol "public: int __thiscall
nsRect::Intersects(struct nsRect const &)const "
(?Intersects@nsRect@@QBEHABU1@@Z) referenced in function "public: void
__thiscall DirtyRectList::MergeRemainingRects(class DirtyRect *)"
(?MergeRemainingRects@DirtyRectList@@QAEXPAVDirtyRect@@@Z)
error LNK2019: unresolved external symbol "public: int __thiscall
nsRect::UnionRect(struct nsRect const &,struct nsRect const &)"
(?UnionRect@nsRect@@QAEHABU1@0@Z) referenced in function "public: void
__thiscall DirtyRectList::InsertRect(struct nsRect,int)"
(?InsertRect@DirtyRectList@@QAEXUnsRect@@H@Z)
If I link to gkgfx.lib and string_s.lib these errors went away... but
then I get
error LNK2005: "public: __thiscall gfxIntSize::gfxIntSize(int,int)"
(??0gfxIntSize@@QAE@HH@Z) already defined in xul.lib(xul.dll)
I need to use both nsRect and gfxIntSize struct.. can they co-exist or
is there a link strategy to solve these errors?
your help is very much appreciated.
Steve
Benjamin Smedberg
> Hi,
>
> I am linking my embedding app against the FIREFOX_3_0_1_RELEASE and
> MOZ_CO_PROJECT=xulrunner code base
> and following libs.
>
> nspr4.lib
> plc4.lib
> plds4.lib
> xul.lib
> xpcomglue.lib
> profdirserviceprovidersa_s.lib
> jpeg3250.lib
>
> And with XPCOM_GLUE=1 defined, I am getting these link errors:
>
> error LNK2019: unresolved external symbol "public: int __thiscall
> nsRect::IntersectRect(struct nsRect const &,struct nsRect const &)"
> (?IntersectRect@nsRect@@QAEHABU1@0@Z) referenced in function "public:
> virtual void __thiscall BrowserFrame::threadUpdate(void)"
> (?threadUpdate@BrowserFrame@@UAEXXZ)
There are a bunch of problems here ;-)
* it doesn't make sense to link against xul.lib and xpcomglue.lib at the
same time. You either need to
1) use standalone linkage. Link only against xpcomglue.lib. Don't link
against NSPR/xul.lib at all. Define XPCOM_GLUE
2) use dependent linkage. link against xul.lib, xpcom.lib, and
xpcomglue_s.lib. Don't define XPCOM_GLUE
* You're trying to link against nsRect. I'm not sure why, but you can't use
nsRect. It is an internal API and is not avaialable to you. You should
figure out why you're trying to link with these symbols and remove the
dependency.
--BDS