Add PDF extension support (issue #1565)

libcef/browser/extensions/component_extension_resource_manager.cc

@@ -0,0 +1,58 @@
+// Copyright 2014 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 "libcef/browser/extensions/component_extension_resource_manager.h"
+
+#include "base/logging.h"
+#include "base/path_service.h"
+#include "chrome/common/chrome_paths.h"
+#include "grit/component_extension_resources_map.h"
+
+namespace extensions {
+
+CefComponentExtensionResourceManager::CefComponentExtensionResourceManager() {
+  AddComponentResourceEntries(
+      kComponentExtensionResources,
+      kComponentExtensionResourcesSize);
+}
+
+CefComponentExtensionResourceManager::~CefComponentExtensionResourceManager() {}
+
+bool CefComponentExtensionResourceManager::IsComponentExtensionResource(
+    const base::FilePath& extension_path,
+    const base::FilePath& resource_path,
+    int* resource_id) const {
+  base::FilePath directory_path = extension_path;
+  base::FilePath resources_dir;
+  base::FilePath relative_path;
+  if (!PathService::Get(chrome::DIR_RESOURCES, &resources_dir) ||
+      !resources_dir.AppendRelativePath(directory_path, &relative_path)) {
+    return false;
+  }
+  relative_path = relative_path.Append(resource_path);
+  relative_path = relative_path.NormalizePathSeparators();
+
+  std::map<base::FilePath, int>::const_iterator entry =
+      path_to_resource_id_.find(relative_path);
+  if (entry != path_to_resource_id_.end())
+    *resource_id = entry->second;
+
+  return entry != path_to_resource_id_.end();
+}
+
+void CefComponentExtensionResourceManager::AddComponentResourceEntries(
+    const GritResourceMap* entries,
+    size_t size) {
+  for (size_t i = 0; i < size; ++i) {
+    base::FilePath resource_path = base::FilePath().AppendASCII(
+        entries[i].name);
+    resource_path = resource_path.NormalizePathSeparators();
+
+    DCHECK(path_to_resource_id_.find(resource_path) ==
+        path_to_resource_id_.end());
+    path_to_resource_id_[resource_path] = entries[i].value;
+  }
+}
+
+}  // namespace extensions