Move ResourceBundle, DataPack to ui/base

BUG=none
TEST=none
TBR=brettw

Review URL: http://codereview.chromium.org/6263008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@72038 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 121 insertions, 0 deletions

diff --git a/ui/base/resource/resource_bundle_posix.cc b/ui/base/resource/resource_bundle_posix.cc
new file mode 100644
index 0000000..119d721
--- /dev/null
+++ b/ui/base/resource/resource_bundle_posix.cc
@@ -0,0 +1,121 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ui/base/resource/resource_bundle.h"
+
+#include "app/l10n_util.h"
+#include "base/lock.h"
+#include "base/logging.h"
+#include "base/stl_util-inl.h"
+#include "base/string16.h"
+#include "base/string_piece.h"
+#include "gfx/font.h"
+#include "ui/base/resource/data_pack.h"
+
+namespace ui {
+
+namespace {
+
+DataPack* LoadResourcesDataPak(FilePath resources_pak_path) {
+  DataPack* resources_pak = new DataPack;
+  bool success = resources_pak->Load(resources_pak_path);
+  if (!success) {
+    delete resources_pak;
+    resources_pak = NULL;
+  }
+  return resources_pak;
+}
+
+}  // namespace
+
+ResourceBundle::~ResourceBundle() {
+  FreeImages();
+#if defined(OS_POSIX) && !defined(OS_MACOSX)
+  FreeGdkPixBufs();
+#endif
+  UnloadLocaleResources();
+  STLDeleteContainerPointers(data_packs_.begin(),
+                             data_packs_.end());
+  delete resources_data_;
+  resources_data_ = NULL;
+}
+
+void ResourceBundle::UnloadLocaleResources() {
+  delete locale_resources_data_;
+  locale_resources_data_ = NULL;
+}
+
+// static
+RefCountedStaticMemory* ResourceBundle::LoadResourceBytes(
+    DataHandle module, int resource_id) {
+  DCHECK(module);
+  return module->GetStaticMemory(resource_id);
+}
+
+base::StringPiece ResourceBundle::GetRawDataResource(int resource_id) const {
+  DCHECK(resources_data_);
+  base::StringPiece data;
+  if (!resources_data_->GetStringPiece(resource_id, &data)) {
+    if (!locale_resources_data_->GetStringPiece(resource_id, &data)) {
+      for (size_t i = 0; i < data_packs_.size(); ++i) {
+        if (data_packs_[i]->GetStringPiece(resource_id, &data))
+          return data;
+      }
+
+      return base::StringPiece();
+    }
+  }
+  return data;
+}
+
+string16 ResourceBundle::GetLocalizedString(int message_id) {
+  // If for some reason we were unable to load a resource pak, return an empty
+  // string (better than crashing).
+  if (!locale_resources_data_) {
+    LOG(WARNING) << "locale resources are not loaded";
+    return string16();
+  }
+
+  base::StringPiece data;
+  if (!locale_resources_data_->GetStringPiece(message_id, &data)) {
+    // Fall back on the main data pack (shouldn't be any strings here except in
+    // unittests).
+    data = GetRawDataResource(message_id);
+    if (data.empty()) {
+      NOTREACHED() << "unable to find resource: " << message_id;
+      return string16();
+    }
+  }
+
+  // Data pack encodes strings as UTF16.
+  DCHECK_EQ(data.length() % 2, 0U);
+  string16 msg(reinterpret_cast<const char16*>(data.data()),
+               data.length() / 2);
+  return msg;
+}
+
+void ResourceBundle::LoadCommonResources() {
+  DCHECK(!resources_data_) << "chrome.pak already loaded";
+  FilePath resources_file_path = GetResourcesFilePath();
+  CHECK(!resources_file_path.empty()) << "chrome.pak not found";
+  resources_data_ = LoadResourcesDataPak(resources_file_path);
+  CHECK(resources_data_) << "failed to load chrome.pak";
+}
+
+std::string ResourceBundle::LoadLocaleResources(
+    const std::string& pref_locale) {
+  DCHECK(!locale_resources_data_) << "locale.pak already loaded";
+  std::string app_locale = l10n_util::GetApplicationLocale(pref_locale);
+  FilePath locale_file_path = GetLocaleFilePath(app_locale);
+  if (locale_file_path.empty()) {
+    // It's possible that there is no locale.pak.
+    NOTREACHED();
+    return std::string();
+  }
+  locale_resources_data_ = LoadResourcesDataPak(locale_file_path);
+  CHECK(locale_resources_data_) << "failed to load locale.pak";
+  return app_locale;
+}
+
+}  // namespace ui