Hi every one,
I'm upgrading my app wich using gecko from 1.8 to 1.9. I found a
really weird problem that I got an exception in
nsDocShell::EnsureScriptEnvironment() funcion when I try to create a
dom window to load script code.
Here is my code :
***********************************************************************************************
XPCOM_CREATE_MEMBER_INSTANCE_BY_CONTRACT_ID "@mozilla.org/embedding/
browser/nsWebBrowser;1",NULL,NS_GET_IID( nsIWebBrowser ),
myWebBrowser );
nsCOMPtr< nsIDocShellTreeItem >
dsti( do_QueryInterface( myWebBrowser ) );
dsti->SetItemType( nsIDocShellTreeItem::typeContentWrapper );
nsCOMPtr< nsIWebBrowserPersist >
webBrowserPersist( do_QueryInterface( myWebBrowser ) );
if ( webBrowserPersist == NULL ) return;
XPCOM_CREATE_MEMBER_INSTANCE_BY_CONTRACT_ID( "@mozilla.org/editor/
editingsession;1",
NULL,
NS_GET_IID( nsIWebProgressListener ),
mySessionListener );
webBrowserPersist->SetProgressListener( mySessionListener );
nsCOMPtr< nsIBaseWindow > baseWindow =
do_QueryInterface( myWebBrowser );
nsCOMPtr<nsIWidget> mWindow;
nsCOMPtr< nsIComponentManager > componentManager;
result =
NS_GetComponentManager( getter_AddRefs( componentManager ) );
result = componentManager->CreateInstance(kWindowCID, nsnull,
kIWidgetIID,
getter_AddRefs(mWindow));
nsWidgetInitData initData;
initData.mWindowType = eWindowType_toplevel;
initData.mBorderStyle = eBorderStyle_default;
nsRect r(0, 0, 100, 100);
mWindow->Create((nsIWidget*)NULL, r, HandleBrowserEvent,
nsnull, nsnull, nsnull, &initData);
mWindow->GetClientBounds(r);
result = baseWindow->InitWindow( mWindow-
>GetNativeData(NS_NATIVE_WIDGET), NULL, 0, 0, 64, 48 );
result = baseWindow->Create();
...
************************************************************************
Call Stack:
------------------------------------------------------------------------------------------
xul.dll!nsDocShell::EnsureScriptEnvironment() Line 8994
xul.dll!nsDocShell::GetInterface(const nsID & aIID={...}, void * *
aSink=0x0012ce24) Line 454 + 0x45 bytes
xul.dll!nsWebShell::GetInterface(const nsID & aIID={...}, void * *
aInstancePtr=0x0012ce24) Line 635
xul.dll!nsGetInterface::operator()(const nsID & aIID={...}, void * *
aInstancePtr=0x0012ce24) Line 52 + 0x21 bytes
xul.dll!nsCOMPtr<nsIDOMWindow>::assign_from_helper(const
nsCOMPtr_helper & helper={...}, const nsID & aIID={...}) Line 1335 +
0x13 bytes
xul.dll!
nsCOMPtr<nsIDOMWindow>::nsCOMPtr<nsIDOMWindow>(const nsCOMPtr_helper &
helper={...}) Line 695
xul.dll!nsWebBrowser::GetContentDOMWindow(nsIDOMWindow * *
_retval=0x0012cf90) Line 412
xul.dll!nsWebBrowser::Create() Line 1207 + 0x2d bytes
--------------------------------------------------------------------------------------------
The code worked fine in Gecko 1.8, and I noticed the following code
was new in Gecko 1.9. and the browserChrome is nsnull which caused
return NS_ERROR_NOT_AVAILABLE.
Ln 8995 in nsDocShell.cpp EnsureScriptEnvironment () function
nsCOMPtr<nsIWebBrowserChrome>
browserChrome(do_GetInterface(mTreeOwner));
NS_ENSURE_TRUE(browserChrome, NS_ERROR_NOT_AVAILABLE);
Could any one tell me what I did wrong in my code ?
Thanks a lot.
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