I've run into a snag enabling drag-and-drop. The code that's failing is:
nsCOMPtr<nsICommandManager> commandManager =
do_GetInterface(m_web_browser);
where m_web_browser is declared like this
nsCOMPtr<nsIWebBrowser> m_web_browser;
and initialized as WebBrowserChrome::CreateBrowser in
src/embedding/tests/winEmbed/WebBrowserChrome.cpp does.
The above do_GetInterface functions returns NULL. I have logging turned
on in gecko (all:5) and I see this in the log:
0[1584ab8]: WARNING: NS_ENSURE_TRUE(browserChrome) failed: file
c:/utils/cygwin/home/dbyron/src/tuneup/trunk/mozilla/src/docshell/base/nsDocShell.cpp,
line 10284
0[1584ab8]: nsComponentManager:
CreateInstanceByContractID(@mozilla.org/embedcomp/command-manager;1)
succeeded
0[1584ab8]: WARNING: NS_ENSURE_TRUE(browserChrome) failed: file
c:/utils/cygwin/home/dbyron/src/tuneup/trunk/mozilla/src/docshell/base/nsDocShell.cpp,
line 10284
0[1584ab8]: WARNING: NS_ENSURE_TRUE(aWindow) failed: file
c:/utils/cygwin/home/dbyron/src/tuneup/trunk/mozilla/src/embedding/components/commandhandler/src/nsCommandManager.cpp,
line 116
0[1584ab8]: WARNING: NS_ENSURE_SUCCESS(EnsureCommandHandler(),
((nsresult) 0x80004005L)) failed with result 0x80004005: file
c:/utils/cygwin/home/dbyron/src/tuneup/trunk/mozilla/src/docshell/base/nsDocShell.cpp,
line 848
though I see the warning about browserChrome from line 10284 elsewhere
in the log whether I try to get to nsICommandManager or not.
I would have thought the call to m_web_browser->SetContainerWindow would
have gotten my nsIWebBrowserChrome implementation everywhere it needed
to be, but I guess not.
Can anyone point me in the right direction for getting the warnings to
go way, and more importantly, to getting an nsICommandManager so I can
control drag-and-drop behavior?
Thanks much.
-DB
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