Pepper/Flapper: Add an interface to do sync file ops on FileRefs.

webkit/plugins/ppapi/ppb_flash_file_impl.cc

 // 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 "webkit/plugins/ppapi/ppb_flash_file_impl.h"
 
 #include <string.h>
 
 #include <string>
 
@@ skipping 204 matching lines @@
 };
 
 }  // namespace
 
 // static
 const PPB_Flash_File_ModuleLocal*
     PPB_Flash_File_ModuleLocal_Impl::GetInterface() {
   return &ppb_flash_file_modulelocal;
 }
 
+// PPB_Flash_File_FileRef_Impl -------------------------------------------------
+
+namespace {
+
+int32_t OpenFileRefFile(PP_Resource file_ref_id,
+                        int32_t mode,
+                        PP_FileHandle* file) {
+  int flags = 0;
+  if (!ConvertFromPPFileOpenFlags(mode, &flags) || !file)
+    return PP_ERROR_BADARGUMENT;
+
+  scoped_refptr<PPB_FileRef_Impl> file_ref(
+      Resource::GetAs<PPB_FileRef_Impl>(file_ref_id));
+  if (!file_ref)
+    return PP_ERROR_BADRESOURCE;
+
+  PluginInstance* instance = file_ref->instance();
+  if (!instance)
+    return PP_ERROR_FAILED;
+
+  base::PlatformFile base_file;
+  base::PlatformFileError result = instance->delegate()->OpenFile(
+      PepperFilePath::MakeAbsolute(file_ref->GetSystemPath()),
+      flags,
+      &base_file);
+  *file = base_file;
+  return PlatformFileErrorToPepperError(result);
+}
+
+int32_t RenameFileRefFile(PP_Resource from_file_ref_id,
+                          PP_Resource to_file_ref_id) {

[piman, 2011/03/01 21:54:29]

I'm not sure we actually need Rename/Delete/CreateDir or even GetDirContents.
It's probably better to just stub them out.

+  scoped_refptr<PPB_FileRef_Impl> from_file_ref(
+      Resource::GetAs<PPB_FileRef_Impl>(from_file_ref_id));
+  if (!from_file_ref)
+    return PP_ERROR_BADRESOURCE;
+
+  scoped_refptr<PPB_FileRef_Impl> to_file_ref(
+      Resource::GetAs<PPB_FileRef_Impl>(to_file_ref_id));
+  if (!to_file_ref)
+    return PP_ERROR_BADRESOURCE;
+
+  PluginInstance* instance = from_file_ref->instance();
+  if (!instance)
+    return PP_ERROR_FAILED;
+  DCHECK(to_file_ref->instance() == instance);
+
+  base::PlatformFileError result = instance->delegate()->RenameFile(
+      PepperFilePath::MakeAbsolute(from_file_ref->GetSystemPath()),
+      PepperFilePath::MakeAbsolute(to_file_ref->GetSystemPath()));
+  return PlatformFileErrorToPepperError(result);
+}
+
+int32_t DeleteFileRefFileOrDir(PP_Resource file_ref_id,
+                               PP_Bool recursive) {
+  scoped_refptr<PPB_FileRef_Impl> file_ref(
+      Resource::GetAs<PPB_FileRef_Impl>(file_ref_id));
+  if (!file_ref)
+    return PP_ERROR_BADRESOURCE;
+
+  PluginInstance* instance = file_ref->instance();
+  if (!instance)
+    return PP_ERROR_FAILED;
+
+  base::PlatformFileError result = instance->delegate()->DeleteFileOrDir(
+      PepperFilePath::MakeAbsolute(file_ref->GetSystemPath()),
+      PPBoolToBool(recursive));
+  return PlatformFileErrorToPepperError(result);
+}
+
+int32_t CreateFileRefDir(PP_Resource file_ref_id) {
+  scoped_refptr<PPB_FileRef_Impl> file_ref(
+      Resource::GetAs<PPB_FileRef_Impl>(file_ref_id));
+  if (!file_ref)
+    return PP_ERROR_BADRESOURCE;
+
+  PluginInstance* instance = file_ref->instance();
+  if (!instance)
+    return PP_ERROR_FAILED;
+
+  base::PlatformFileError result = instance->delegate()->CreateDir(
+      PepperFilePath::MakeAbsolute(file_ref->GetSystemPath()));
+  return PlatformFileErrorToPepperError(result);
+}
+
+int32_t QueryFileRefFile(PP_Resource file_ref_id,
+                         PP_FileInfo_Dev* info) {
+  scoped_refptr<PPB_FileRef_Impl> file_ref(
+      Resource::GetAs<PPB_FileRef_Impl>(file_ref_id));
+  if (!file_ref)
+    return PP_ERROR_BADRESOURCE;
+
+  PluginInstance* instance = file_ref->instance();
+  if (!instance)
+    return PP_ERROR_FAILED;
+
+  base::PlatformFileInfo file_info;
+  base::PlatformFileError result = instance->delegate()->QueryFile(
+      PepperFilePath::MakeAbsolute(file_ref->GetSystemPath()),
+      &file_info);
+  if (result == base::PLATFORM_FILE_OK) {
+    info->size = file_info.size;
+    info->creation_time = file_info.creation_time.ToDoubleT();
+    info->last_access_time = file_info.last_accessed.ToDoubleT();
+    info->last_modified_time = file_info.last_modified.ToDoubleT();
+    info->system_type = PP_FILESYSTEMTYPE_EXTERNAL;
+    if (file_info.is_directory)
+      info->type = PP_FILETYPE_DIRECTORY;
+    else
+      info->type = PP_FILETYPE_REGULAR;
+  }
+  return PlatformFileErrorToPepperError(result);
+}
+
+int32_t GetFileRefDirContents(PP_Resource file_ref_id,
+                              PP_DirContents_Dev** contents) {
+  scoped_refptr<PPB_FileRef_Impl> file_ref(
+      Resource::GetAs<PPB_FileRef_Impl>(file_ref_id));
+  if (!file_ref)
+    return PP_ERROR_BADRESOURCE;
+
+  PluginInstance* instance = file_ref->instance();
+  if (!instance)
+    return PP_ERROR_FAILED;
+
+  *contents = NULL;
+  DirContents pepper_contents;
+  base::PlatformFileError result = instance->delegate()->GetDirContents(
+      PepperFilePath::MakeAbsolute(file_ref->GetSystemPath()),
+      &pepper_contents);
+
+  if (result != base::PLATFORM_FILE_OK)
+    return PlatformFileErrorToPepperError(result);
+
+  *contents = new PP_DirContents_Dev;
+  size_t count = pepper_contents.size();
+  (*contents)->count = count;
+  (*contents)->entries = new PP_DirEntry_Dev[count];
+  for (size_t i = 0; i < count; ++i) {
+    PP_DirEntry_Dev& entry = (*contents)->entries[i];
+#if defined(OS_WIN)
+    const std::string& name = UTF16ToUTF8(pepper_contents[i].name.value());
+#else
+    const std::string& name = pepper_contents[i].name.value();
+#endif
+    size_t size = name.size() + 1;
+    char* name_copy = new char[size];
+    memcpy(name_copy, name.c_str(), size);
+    entry.name = name_copy;
+    entry.is_dir = BoolToPPBool(pepper_contents[i].is_dir);
+  }
+  return PP_OK;
+}
+
+const PPB_Flash_File_FileRef ppb_flash_file_fileref = {
+  &OpenFileRefFile,
+  &RenameFileRefFile,
+  &DeleteFileRefFileOrDir,
+  &CreateFileRefDir,
+  &QueryFileRefFile,
+  &GetFileRefDirContents,
+  &FreeDirContents,
+};
+
+}  // namespace
+
+// static
+const PPB_Flash_File_FileRef* PPB_Flash_File_FileRef_Impl::GetInterface() {
+  return &ppb_flash_file_fileref;
+}
+
 }  // namespace ppapi
 }  // namespace webkit