Keep only base/extractor.[cc|h].

plugins/update/npapi/dispatch_host.cc

Index: plugins/update/npapi/dispatch_host.cc
diff --git a/plugins/update/npapi/dispatch_host.cc b/plugins/update/npapi/dispatch_host.cc
deleted file mode 100644
index 8d7604fdfb8224de65d6b8b74a477ba55e40dd54..0000000000000000000000000000000000000000
--- a/plugins/update/npapi/dispatch_host.cc
+++ /dev/null
@@ -1,266 +0,0 @@
-// Copyright 2009 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-// ========================================================================
-//
-// TODO(omaha): use NPN_SetException to return useful error information.
-
-#include "omaha/plugins/update/npapi/dispatch_host.h"
-
-#include "base/logging.h"
-#include "base/scope_guard.h"
-#include "base/scoped_ptr.h"
-#include "omaha/base/string.h"
-#include "omaha/plugins/update/npapi/variant_utils.h"
-
-namespace omaha {
-
-namespace {
-
-void SetExceptionIfFailed(NPObject* object, HRESULT result) {
-  if (FAILED(result)) {
-    CStringA message;
-    message.Format("0x%08x", result);
-    NPN_SetException(object, message);
-  }
-}
-
-}  // namespace
-
-DispatchHost* DispatchHost::CreateInstance(NPP npp, IDispatch* dispatch) {
-  ASSERT1(dispatch);
-  DispatchHost* host = static_cast<DispatchHost*>(
-      NPN_CreateObject(npp, &kNPClass_));
-  host->dispatch_ = dispatch;
-  CORE_LOG(L3, (L"[DispatchHost::DispatchHost][this=0x%p][dispatch=0x%p]",
-                host, dispatch));
-  return host;
-}
-
-DispatchHost::DispatchHost(NPP npp) : npp_(npp) {
-}
-
-DispatchHost::~DispatchHost() {
-  CORE_LOG(L3, (L"[DispatchHost::~DispatchHost][this=0x%p][dispatch=0x%p]",
-                this, dispatch_));
-}
-
-DISPID DispatchHost::GetDispatchId(NPIdentifier name) {
-  NPUTF8* utf8_name = NPN_UTF8FromIdentifier(name);
-  CString wide_name = Utf8ToWideChar(utf8_name, lstrlenA(utf8_name));
-  NPN_MemFree(utf8_name);
-  DISPID dispatch_id = DISPID_UNKNOWN;
-  HRESULT hr = dispatch_.GetIDOfName(wide_name, &dispatch_id);
-  if (FAILED(hr)) {
-    return DISPID_UNKNOWN;
-  }
-  return dispatch_id;
-}
-
-// Whether or not a member should be treated as a property by NPAPI. A member is
-// considered a property for NPAPI if either of the following are true:
-// - The property is a getter with exactly one [out, retval] argument.
-// - The property is a putter with exactly one [in] argument.
-// The reason for this limitation is NPAPI does not support passing additional
-// arguments when getting/setting properties. Properties that take additional
-// arguments are handled as methods by NPAPI instead.
-bool DispatchHost::IsProperty(DISPID dispatch_id) {
-  CComPtr<ITypeInfo> type_info;
-  HRESULT hr = dispatch_->GetTypeInfo(0, LOCALE_SYSTEM_DEFAULT, &type_info);
-  if (FAILED(hr)) {
-    ASSERT(false, (L"[IsProperty][failed=0x%08x]", hr));
-    return false;
-  }
-  TYPEATTR* type_attr;
-  hr = type_info->GetTypeAttr(&type_attr);
-  if (FAILED(hr)) {
-    ASSERT(false, (L"[IsProperty][failed=0x%08x]", hr));
-    return false;
-  }
-  ON_SCOPE_EXIT_OBJ(*type_info.p, &ITypeInfo::ReleaseTypeAttr, type_attr);
-
-  for (int i = 0; i < type_attr->cFuncs; ++i) {
-    FUNCDESC* func_desc = NULL;
-    hr = type_info->GetFuncDesc(i, &func_desc);
-    if (FAILED(hr)) {
-      ASSERT(false, (L"[IsProperty][failed=0x%08x]", hr));
-      return false;
-    }
-    ON_SCOPE_EXIT_OBJ(*type_info.p, &ITypeInfo::ReleaseFuncDesc, func_desc);
-    if (dispatch_id == func_desc->memid) {
-      if (((func_desc->invkind & DISPATCH_PROPERTYGET) &&
-            func_desc->cParams == 0) ||
-          ((func_desc->invkind & DISPATCH_PROPERTYPUT) &&
-           func_desc->cParams == 1 &&
-           (func_desc->lprgelemdescParam[0].paramdesc.wParamFlags &
-            PARAMFLAG_FIN))) {
-        return true;
-      }
-    }
-  }
-  return false;
-}
-
-// Simple helper to adapt NPAPI method/property invocations to IDispatch::Invoke
-// by wrapping/unwrapping NPVariants into VARIANTs.
-HRESULT DispatchHost::InvokeHelper(DISPID dispatch_id, WORD flags,
-                                   const NPVariant* args, uint32_t arg_count,
-                                   NPP npp, NPVariant* result) {
-  ASSERT1(args || arg_count == 0);
-  ASSERT1(result);
-  CORE_LOG(L3, (L"[InvokeHelper][this=0x%p][dispatch=0x%p][flags=0x%x]"
-                L"[arg_count=%d]", this, dispatch_, flags, arg_count));
-
-  // Just in case a rogue browser decides to use the return value on failure.
-  VOID_TO_NPVARIANT(*result);
-  scoped_array<CComVariant> dispatch_args(new CComVariant[arg_count]);
-
-  // IDispatch::Invoke expects arguments in "reverse" order
-  for (uint32_t i = 0 ; i < arg_count; ++i) {
-    NPVariantToVariant(npp, args[i], &dispatch_args[arg_count - i - 1]);
-  }
-  DISPPARAMS dispatch_params = {};
-  dispatch_params.rgvarg = dispatch_args.get();
-  dispatch_params.cArgs = arg_count;
-  CComVariant dispatch_result;
-  HRESULT hr = dispatch_->Invoke(dispatch_id, IID_NULL, LOCALE_USER_DEFAULT,
-                                 flags, &dispatch_params, &dispatch_result,
-                                 NULL, NULL);
-  if (FAILED(hr)) {
-    CORE_LOG(L3, (L"[InvokeHelper][failed_hr=0x%p]", hr));
-    return hr;
-  }
-  VariantToNPVariant(npp, dispatch_result, result);
-  return hr;
-}
-
-NPObject* DispatchHost::Allocate(NPP npp, NPClass* class_functions) {
-  UNREFERENCED_PARAMETER(class_functions);
-  return new DispatchHost(npp);
-}
-
-void DispatchHost::Deallocate(NPObject* object) {
-  delete static_cast<DispatchHost*>(object);
-}
-
-bool DispatchHost::HasMethod(NPObject* object, NPIdentifier name) {
-  DispatchHost* host = static_cast<DispatchHost*>(object);
-  DISPID dispatch_id = host->GetDispatchId(name);
-  return dispatch_id != DISPID_UNKNOWN && !host->IsProperty(dispatch_id);
-}
-
-bool DispatchHost::Invoke(NPObject* object, NPIdentifier name,
-                          const NPVariant* args, uint32_t arg_count,
-                          NPVariant* result) {
-  DispatchHost* host = static_cast<DispatchHost*>(object);
-  CORE_LOG(L3, (L"[DispatchHost::Invoke][this=0x%p][dispatch=0x%p]",
-                host, host->dispatch_));
-  HRESULT hr = host->InvokeHelper(host->GetDispatchId(name),
-                                  DISPATCH_METHOD | DISPATCH_PROPERTYGET,
-                                  args,
-                                  arg_count,
-                                  host->npp_,
-                                  result);
-  SetExceptionIfFailed(object, hr);
-  return SUCCEEDED(hr);
-}
-
-bool DispatchHost::InvokeDefault(NPObject* object, const NPVariant* args,
-                                 uint32_t arg_count, NPVariant* result) {
-  DispatchHost* host = static_cast<DispatchHost*>(object);
-  CORE_LOG(L3, (L"[DispatchHost::InvokeDefault][this=0x%p][dispatch=0x%p]",
-                host, host->dispatch_));
-  HRESULT hr = host->InvokeHelper(DISPID_VALUE,
-                                  DISPATCH_METHOD | DISPATCH_PROPERTYGET,
-                                  args,
-                                  arg_count,
-                                  host->npp_,
-                                  result);
-  SetExceptionIfFailed(object, hr);
-  return SUCCEEDED(hr);
-}
-
-bool DispatchHost::HasProperty(NPObject* object, NPIdentifier name) {
-  DispatchHost* host = static_cast<DispatchHost*>(object);
-  DISPID dispatch_id = host->GetDispatchId(name);
-  return dispatch_id != DISPID_UNKNOWN && host->IsProperty(dispatch_id);
-}
-
-bool DispatchHost::GetProperty(NPObject* object, NPIdentifier name,
-                               NPVariant* result) {
-  DispatchHost* host = static_cast<DispatchHost*>(object);
-  CORE_LOG(L3, (L"[DispatchHost::GetProperty][this=0x%p][dispatch=0x%p]",
-                host, host->dispatch_));
-  HRESULT hr = host->InvokeHelper(host->GetDispatchId(name),
-                                  DISPATCH_PROPERTYGET,
-                                  NULL,
-                                  0,
-                                  host->npp_,
-                                  result);
-  SetExceptionIfFailed(object, hr);
-  return SUCCEEDED(hr);
-}
-
-bool DispatchHost::SetProperty(NPObject* object, NPIdentifier name,
-                               const NPVariant* value) {
-  DispatchHost* host = static_cast<DispatchHost*>(object);
-  CORE_LOG(L3, (L"[DispatchHost::SetProperty][this=0x%p][dispatch=0x%p]",
-                host, host->dispatch_));
-  DISPID dispatch_id = host->GetDispatchId(name);
-  CComVariant dispatch_arg;
-  NPVariantToVariant(host->npp_, *value, &dispatch_arg);
-  HRESULT hr = host->dispatch_.PutProperty(dispatch_id, &dispatch_arg);
-  SetExceptionIfFailed(object, hr);
-  return SUCCEEDED(hr);
-}
-
-bool DispatchHost::RemoveProperty(NPObject* object, NPIdentifier name) {
-  UNREFERENCED_PARAMETER(object);
-  UNREFERENCED_PARAMETER(name);
-  return false;
-}
-
-bool DispatchHost::Enumerate(NPObject* object, NPIdentifier** names,
-                             uint32_t* count) {
-  UNREFERENCED_PARAMETER(object);
-  UNREFERENCED_PARAMETER(names);
-  UNREFERENCED_PARAMETER(count);
-  return false;
-}
-
-bool DispatchHost::Construct(NPObject* object, const NPVariant* args,
-                             uint32_t arg_count, NPVariant* result) {
-  UNREFERENCED_PARAMETER(object);
-  UNREFERENCED_PARAMETER(args);
-  UNREFERENCED_PARAMETER(arg_count);
-  UNREFERENCED_PARAMETER(result);
-  return false;
-}
-
-NPClass DispatchHost::kNPClass_ = {
-  NP_CLASS_STRUCT_VERSION,
-  Allocate,
-  Deallocate,
-  NULL,
-  HasMethod,
-  Invoke,
-  InvokeDefault,
-  HasProperty,
-  GetProperty,
-  SetProperty,
-  RemoveProperty,
-  Enumerate,
-  Construct,
-};
-
-}  // namespace omaha