Pepper/Flapper: Implement proxy for clipboard stuff.

ppapi/proxy/ppb_flash_clipboard_proxy.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 "ppapi/proxy/ppb_flash_clipboard_proxy.h"
+
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/c/private/ppb_flash_clipboard.h"
+#include "ppapi/proxy/plugin_dispatcher.h"
+#include "ppapi/proxy/ppapi_messages.h"
+#include "ppapi/proxy/serialized_var.h"
+
+namespace pp {
+namespace proxy {
+
+namespace {
+
+bool IsValidClipboardType(PP_Flash_Clipboard_Type clipboard_type) {
+  return clipboard_type == PP_FLASH_CLIPBOARD_TYPE_STANDARD ||
+         clipboard_type == PP_FLASH_CLIPBOARD_TYPE_SELECTION ||
+         clipboard_type == PP_FLASH_CLIPBOARD_TYPE_DRAG;
+}
+
+PP_Var ReadPlainText(PP_Instance instance_id,
+                     PP_Flash_Clipboard_Type clipboard_type) {
+  PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(instance_id);
+  if (!dispatcher)
+    return PP_MakeUndefined();
+
+  if (!IsValidClipboardType(clipboard_type))
+    return PP_MakeUndefined();
+
+  ReceiveSerializedVarReturnValue result;
+  dispatcher->Send(new PpapiHostMsg_PPBFlashClipboard_ReadPlainText(
+      INTERFACE_ID_PPB_FLASH_CLIPBOARD, instance_id,
+      static_cast<int>(clipboard_type), &result));
+  return result.Return(dispatcher);
+}
+
+int32_t WritePlainText(PP_Instance instance_id,
+                       PP_Flash_Clipboard_Type clipboard_type,
+                       PP_Var text) {
+  PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(instance_id);
+  if (!dispatcher)
+    return PP_ERROR_BADARGUMENT;
+
+  if (!IsValidClipboardType(clipboard_type))
+    return PP_ERROR_BADARGUMENT;
+
+  dispatcher->Send(new PpapiHostMsg_PPBFlashClipboard_WritePlainText(
+      INTERFACE_ID_PPB_FLASH_CLIPBOARD,
+      instance_id,
+      static_cast<int>(clipboard_type),
+      SerializedVarSendInput(dispatcher, text)));
+  // Assume success, since it allows us to avoid a sync IPC.
+  return PP_OK;
+}
+
+const PPB_Flash_Clipboard flash_clipboard_interface = {
+  &ReadPlainText,
+  &WritePlainText
+};
+
+InterfaceProxy* CreateFlashClipboardProxy(Dispatcher* dispatcher,
+                                          const void* target_interface) {
+  return new PPB_Flash_Clipboard_Proxy(dispatcher, target_interface);
+}
+
+}  // namespace
+
+PPB_Flash_Clipboard_Proxy::PPB_Flash_Clipboard_Proxy(
+    Dispatcher* dispatcher, const void* target_interface)
+    : InterfaceProxy(dispatcher, target_interface) {
+}
+
+PPB_Flash_Clipboard_Proxy::~PPB_Flash_Clipboard_Proxy() {
+}
+
+// static
+const InterfaceProxy::Info* PPB_Flash_Clipboard_Proxy::GetInfo() {
+  static const Info info = {
+    &flash_clipboard_interface,
+    PPB_FLASH_CLIPBOARD_INTERFACE,
+    INTERFACE_ID_PPB_FLASH_CLIPBOARD,
+    false,
+    &CreateFlashClipboardProxy
+  };
+  return &info;
+}
+
+bool PPB_Flash_Clipboard_Proxy::OnMessageReceived(const IPC::Message& msg) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP(PPB_Flash_Clipboard_Proxy, msg)
+    IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBFlashClipboard_ReadPlainText,
+                        OnMsgReadPlainText)
+    IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBFlashClipboard_WritePlainText,
+                        OnMsgWritePlainText)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  return handled;
+}
+
+void PPB_Flash_Clipboard_Proxy::OnMsgReadPlainText(
+    PP_Instance instance_id,
+    int clipboard_type,
+    SerializedVarReturnValue result) {
+  result.Return(dispatcher(),
+                ppb_flash_clipboard_target()->ReadPlainText(
+                    instance_id,
+                    static_cast<PP_Flash_Clipboard_Type>(clipboard_type)));
+}
+
+void PPB_Flash_Clipboard_Proxy::OnMsgWritePlainText(
+    PP_Instance instance_id,
+    int clipboard_type,
+    SerializedVarReceiveInput text) {
+  int32_t result = ppb_flash_clipboard_target()->WritePlainText(
+      instance_id,
+      static_cast<PP_Flash_Clipboard_Type>(clipboard_type),
+      text.Get(dispatcher()));
+  LOG_IF(WARNING, result != PP_OK) << "Write to clipboard failed unexpectedly.";
+}
+
+}  // namespace proxy
+}  // namespace pp