Implement an input event resource.

ppapi/shared_impl/instance_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 "ppapi/shared_impl/instance_impl.h"
+
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/c/ppb_input_event.h"
+
+namespace ppapi {
+
+InstanceImpl::~InstanceImpl() {
+}
+
+int32_t InstanceImpl::ValidateRequestInputEvents(bool is_filtering,
+                                                 uint32_t event_classes) {
+  // See if any bits are set we don't know about.
+  if (event_classes &
+      ~static_cast<uint32_t>(PP_INPUTEVENT_CLASS_MOUSE |
+                             PP_INPUTEVENT_CLASS_KEYBOARD |
+                             PP_INPUTEVENT_CLASS_WHEEL |
+                             PP_INPUTEVENT_CLASS_TOUCH |
+                             PP_INPUTEVENT_CLASS_IME))
+    return PP_ERROR_NOTSUPPORTED;
+
+  // See if the keyboard is requested in non-filtering mode.
+  if (!is_filtering && (event_classes & PP_INPUTEVENT_CLASS_KEYBOARD))
+    return PP_ERROR_NOTSUPPORTED;
+
+  // Everything else is valid.
+  return PP_OK;
+}
+
+}  // namespace ppapi