File API boilerplate.

webkit/glue/plugins/pepper_file_chooser.cc

+// Copyright (c) 2010 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/glue/plugins/pepper_file_chooser.h"
+
+#include "base/logging.h"
+#include "third_party/ppapi/c/pp_completion_callback.h"
+#include "third_party/ppapi/c/pp_errors.h"
+#include "webkit/glue/plugins/pepper_file_ref.h"
+#include "webkit/glue/plugins/pepper_plugin_instance.h"
+#include "webkit/glue/plugins/pepper_resource_tracker.h"
+
+namespace pepper {
+
+namespace {
+
+PP_Resource Create(PP_Instance instance_id,
+                   const PP_FileChooserOptions* options) {
+  PluginInstance* instance = PluginInstance::FromPPInstance(instance_id);
+  if (!instance)
+    return 0;
+
+  FileChooser* chooser = new FileChooser(instance, options);
+  chooser->AddRef();  // AddRef for the caller.
+  return chooser->GetResource();
+}
+
+bool IsFileChooser(PP_Resource resource) {
+  return !!ResourceTracker::Get()->GetAsFileChooser(resource).get();
+}
+
+int32_t Show(PP_Resource chooser_id, PP_CompletionCallback callback) {
+  scoped_refptr<FileChooser> chooser(
+      ResourceTracker::Get()->GetAsFileChooser(chooser_id).get());
+  if (!chooser.get())
+    return PP_Error_BadResource;
+
+  return chooser->Show(callback);
+}
+
+PP_Resource GetNextChosenFile(PP_Resource chooser_id) {
+  scoped_refptr<FileChooser> chooser(
+      ResourceTracker::Get()->GetAsFileChooser(chooser_id).get());
+  if (!chooser.get())
+    return 0;
+
+  scoped_refptr<FileRef> file_ref(chooser->GetNextChosenFile());
+  if (!file_ref.get())
+    return 0;
+  file_ref->AddRef();  // AddRef for the caller.
+
+  return file_ref->GetResource();
+}
+
+const PPB_FileChooser ppb_filechooser = {
+  &Create,
+  &IsFileChooser,
+  &Show,
+  &GetNextChosenFile
+};
+
+}  // namespace
+
+FileChooser::FileChooser(PluginInstance* instance,
+                         const PP_FileChooserOptions* options)
+    : Resource(instance->module()),
+      mode_(options->mode),
+      accept_mime_types_(options->accept_mime_types) {
+}
+
+FileChooser::~FileChooser() {
+}
+
+// static
+const PPB_FileChooser* FileChooser::GetInterface() {
+  return &ppb_filechooser;
+}
+
+int32_t FileChooser::Show(PP_CompletionCallback callback) {
+  NOTIMPLEMENTED();  // TODO(darin): Implement me!
+  return PP_Error_Failed;
+}
+
+scoped_refptr<FileRef> FileChooser::GetNextChosenFile() {
+  NOTIMPLEMENTED();  // TODO(darin): Implement me!
+  return NULL;
+}
+
+}  // namespace pepper