1 files changed, 188 insertions, 0 deletions
diff --git a/b2g/components/GaiaChrome.cpp b/b2g/components/GaiaChrome.cpp
new file mode 100644
index 000000000..2b53750c2
--- /dev/null
+++ b/b2g/components/GaiaChrome.cpp
@@ -0,0 +1,188 @@
+/* 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;