1 files changed, 86 insertions, 0 deletions
diff --git a/gpu/np_utils/np_dispatcher.cc b/gpu/np_utils/np_dispatcher.cc
new file mode 100644
index 0000000..63293c0
--- /dev/null
+++ b/gpu/np_utils/np_dispatcher.cc
@@ -0,0 +1,86 @@
+// Copyright (c) 2006-2008 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 "gpu/np_utils/np_dispatcher.h"
+
+namespace np_utils {
+
+bool DispatcherHasMethodHelper(BaseNPDispatcher* chain,
+                               NPObject* object,
+                               NPIdentifier name) {
+  for (BaseNPDispatcher* dispatcher = chain;
+       dispatcher;
+       dispatcher = dispatcher->next()) {
+    if (dispatcher->name() == name) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
+bool DispatcherInvokeHelper(BaseNPDispatcher* chain,
+                            NPObject* object,
+                            NPIdentifier name,
+                            const NPVariant* args,
+                            uint32_t num_args,
+                            NPVariant* result) {
+  VOID_TO_NPVARIANT(*result);
+
+  for (BaseNPDispatcher* dispatcher = chain;
+       dispatcher;
+       dispatcher = dispatcher->next()) {
+    if (dispatcher->name() == name &&
+        dispatcher->num_args() == static_cast<int>(num_args)) {
+      if (dispatcher->Invoke(object, args, num_args, result))
+        return true;
+    }
+  }
+
+  return false;
+}
+
+bool DispatcherEnumerateHelper(BaseNPDispatcher* chain,
+                               NPObject* object,
+                               NPIdentifier** names,
+                               uint32_t* num_names) {
+  // Count the number of names.
+  *num_names = 0;
+  for (BaseNPDispatcher* dispatcher = chain;
+       dispatcher;
+       dispatcher = dispatcher->next()) {
+    ++(*num_names);
+  }
+
+  // Copy names into the array.
+  *names = static_cast<NPIdentifier*>(
+      NPBrowser::get()->MemAlloc((*num_names) * sizeof(**names)));
+  int i = 0;
+  for (BaseNPDispatcher* dispatcher = chain;
+       dispatcher;
+       dispatcher = dispatcher->next()) {
+    (*names)[i] = dispatcher->name();
+    ++i;
+  }
+
+  return true;
+}
+
+BaseNPDispatcher::BaseNPDispatcher(BaseNPDispatcher* next, const NPUTF8* name)
+    : next_(next) {
+  // Convert first character to lower case if it is the ASCII range.
+  // TODO(apatrick): do this correctly for non-ASCII characters.
+  std::string java_script_style_name(name);
+  if (isupper(java_script_style_name[0])) {
+    java_script_style_name[0] = tolower(java_script_style_name[0]);
+  }
+
+  name_ = NPBrowser::get()->GetStringIdentifier(
+      java_script_style_name.c_str());
+}
+
+BaseNPDispatcher::~BaseNPDispatcher() {
+}
+
+}  // namespace np_utils