gecko-dev/b2g/components/GaiaChrome.cpp

189 строки
4.7 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/. */
#include "GaiaChrome.h"
#include "nsAppDirectoryServiceDefs.h"
#include "nsChromeRegistry.h"
#include "nsDirectoryServiceDefs.h"
#include "nsLocalFile.h"
#include "nsXULAppAPI.h"
#include "mozilla/ClearOnShutdown.h"
#include "mozilla/ModuleUtils.h"
#include "mozilla/Services.h"
#include "mozilla/FileLocation.h"
#define NS_GAIACHROME_CID \
{ 0x83f8f999, 0x6b87, 0x4dd8, { 0xa0, 0x93, 0x72, 0x0b, 0xfb, 0x67, 0x4d, 0x38 } }
using namespace mozilla;
StaticRefPtr<GaiaChrome> gGaiaChrome;
NS_IMPL_ISUPPORTS(GaiaChrome, nsIGaiaChrome)
GaiaChrome::GaiaChrome()
: mPackageName(NS_LITERAL_CSTRING("gaia"))
, mAppsDir(NS_LITERAL_STRING("apps"))
, mDataRoot(NS_LITERAL_STRING("/data/local"))
, mSystemRoot(NS_LITERAL_STRING("/system/b2g"))
{
MOZ_ASSERT(NS_IsMainThread());
GetProfileDir();
Register();
}
//virtual
GaiaChrome::~GaiaChrome()
{
}
nsresult
GaiaChrome::GetProfileDir()
{
nsCOMPtr<nsIFile> profDir;
nsresult rv = NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR,
getter_AddRefs(profDir));
NS_ENSURE_SUCCESS(rv, rv);
rv = profDir->Clone(getter_AddRefs(mProfDir));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
GaiaChrome::ComputeAppsPath(nsIFile* aPath)
{
#if defined(MOZ_MULET)
aPath->InitWithFile(mProfDir);
#elif defined(MOZ_WIDGET_GONK)
nsCOMPtr<nsIFile> locationDetection = new nsLocalFile();
locationDetection->InitWithPath(mSystemRoot);
locationDetection->Append(mAppsDir);
bool appsInSystem = EnsureIsDirectory(locationDetection);
locationDetection->InitWithPath(mDataRoot);
locationDetection->Append(mAppsDir);
bool appsInData = EnsureIsDirectory(locationDetection);
if (!appsInData && !appsInSystem) {
printf_stderr("!!! NO root directory with apps found\n");
MOZ_ASSERT(false);
return NS_ERROR_UNEXPECTED;
}
aPath->InitWithPath(appsInData ? mDataRoot : mSystemRoot);
#else
return NS_ERROR_UNEXPECTED;
#endif
aPath->Append(mAppsDir);
aPath->Append(NS_LITERAL_STRING("."));
nsresult rv = EnsureValidPath(aPath);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
bool
GaiaChrome::EnsureIsDirectory(nsIFile* aPath)
{
bool isDir = false;
aPath->IsDirectory(&isDir);
return isDir;
}
nsresult
GaiaChrome::EnsureValidPath(nsIFile* appsDir)
{
// Ensure there is a valid "apps/system" directory
nsCOMPtr<nsIFile> systemAppDir = new nsLocalFile();
systemAppDir->InitWithFile(appsDir);
systemAppDir->Append(NS_LITERAL_STRING("system"));
bool hasSystemAppDir = EnsureIsDirectory(systemAppDir);
if (!hasSystemAppDir) {
nsCString path; appsDir->GetNativePath(path);
// We don't want to continue if the apps path does not exists ...
printf_stderr("!!! Gaia chrome package is not a directory: %s\n", path.get());
return NS_ERROR_UNEXPECTED;
}
return NS_OK;
}
NS_IMETHODIMP
GaiaChrome::Register()
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(nsChromeRegistry::gChromeRegistry != nullptr);
nsCOMPtr<nsIFile> aPath = new nsLocalFile();
nsresult rv = ComputeAppsPath(aPath);
NS_ENSURE_SUCCESS(rv, rv);
FileLocation appsLocation(aPath);
nsCString uri;
appsLocation.GetURIString(uri);
char* argv[2];
argv[0] = (char*)mPackageName.get();
argv[1] = (char*)uri.get();
nsChromeRegistry::ManifestProcessingContext cx(NS_APP_LOCATION, appsLocation);
nsChromeRegistry::gChromeRegistry->ManifestContent(cx, 0, argv, 0);
return NS_OK;
}
already_AddRefed<GaiaChrome>
GaiaChrome::FactoryCreate()
{
if (!XRE_IsParentProcess()) {
return nullptr;
}
MOZ_ASSERT(NS_IsMainThread());
if (!gGaiaChrome) {
gGaiaChrome = new GaiaChrome();
ClearOnShutdown(&gGaiaChrome);
}
RefPtr<GaiaChrome> service = gGaiaChrome.get();
return service.forget();
}
NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR(GaiaChrome,
GaiaChrome::FactoryCreate)
NS_DEFINE_NAMED_CID(NS_GAIACHROME_CID);
static const mozilla::Module::CIDEntry kGaiaChromeCIDs[] = {
{ &kNS_GAIACHROME_CID, false, nullptr, GaiaChromeConstructor },
{ nullptr }
};
static const mozilla::Module::ContractIDEntry kGaiaChromeContracts[] = {
{ "@mozilla.org/b2g/gaia-chrome;1", &kNS_GAIACHROME_CID },
{ nullptr }
};
static const mozilla::Module::CategoryEntry kGaiaChromeCategories[] = {
{ "profile-after-change", "Gaia Chrome Registration", GAIACHROME_CONTRACTID },
{ nullptr }
};
static const mozilla::Module kGaiaChromeModule = {
mozilla::Module::kVersion,
kGaiaChromeCIDs,
kGaiaChromeContracts,
kGaiaChromeCategories
};
NSMODULE_DEFN(GaiaChromeModule) = &kGaiaChromeModule;