gecko-dev/mozglue/misc/GetKnownFolderPath.h
Doug Thayer b5f7314e3e Bug 1714212 - Ensure COM initialized prior to showing skeleton UI r=Jamie,aklotz,tkikuchi
This implements Jamie's suggested fixes for a screenreader issue when the
skeleton UI is enabled. Most of the work here is just pulling out pieces from the
files we needed to include in mozglue so that any references to, say, nsString
or other pieces from libxul either no longer exist or are only included when
building libxul. In a few cases this meant creating whole files to house single
functions, which isn't so pretty, but it was the best I could come up with to
get the job done.

Differential Revision: https://phabricator.services.mozilla.com/D117663
2021-07-07 22:37:14 +00:00

46 lines
1.3 KiB
C++

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_GetKnownFolderPath_h
#define mozilla_GetKnownFolderPath_h
#include <windows.h>
#include <objbase.h>
#include <shlobj.h>
#include "mozilla/glue/Debug.h"
#include "mozilla/UniquePtr.h"
namespace mozilla {
struct LoadedCoTaskMemFreeDeleter {
void operator()(void* ptr) {
static decltype(CoTaskMemFree)* coTaskMemFree = nullptr;
if (!coTaskMemFree) {
// Just let this get cleaned up when the process is terminated, because
// we're going to load it anyway elsewhere.
HMODULE ole32Dll = ::LoadLibraryW(L"ole32");
if (!ole32Dll) {
printf_stderr(
"Could not load ole32 - will not free with CoTaskMemFree");
return;
}
coTaskMemFree = reinterpret_cast<decltype(coTaskMemFree)>(
::GetProcAddress(ole32Dll, "CoTaskMemFree"));
if (!coTaskMemFree) {
printf_stderr("Could not find CoTaskMemFree");
return;
}
}
coTaskMemFree(ptr);
}
};
UniquePtr<wchar_t, LoadedCoTaskMemFreeDeleter> GetKnownFolderPath(
REFKNOWNFOLDERID folderId);
} // namespace mozilla
#endif