Add InputEvent and EventPacket types for batched input delivery

content/common/input/input_event_disposition.cc

+// Copyright (c) 2013 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 "content/common/input/input_event_disposition.h"
+
+#include "base/logging.h"
+
+namespace content {
+
+InputEventDisposition ToDisposition(InputEventAckState ack_state,
+                                    bool main_thread,
+                                    bool prevent_default) {
+  if (main_thread) {
+    switch (ack_state) {
+      case INPUT_EVENT_ACK_STATE_CONSUMED:
+        return INPUT_EVENT_MAIN_THREAD_CONSUMED;
+      case INPUT_EVENT_ACK_STATE_NOT_CONSUMED:
+        return prevent_default ? INPUT_EVENT_MAIN_THREAD_PREVENT_DEFAULTED
+                               : INPUT_EVENT_MAIN_THREAD_NOT_PREVENT_DEFAULTED;
+      case INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS:
+        return INPUT_EVENT_MAIN_THREAD_NO_CONSUMER_EXISTS;
+      case INPUT_EVENT_ACK_STATE_UNKNOWN:
+        return INPUT_EVENT_UNHANDLED;
+    }
+  } else {
+    switch (ack_state) {
+      case INPUT_EVENT_ACK_STATE_CONSUMED:
+        return INPUT_EVENT_IMPL_THREAD_CONSUMED;
+      case INPUT_EVENT_ACK_STATE_NOT_CONSUMED:
+        return INPUT_EVENT_IMPL_THREAD_BOUNCE_TO_MAIN;
+      case INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS:
+        return INPUT_EVENT_IMPL_THREAD_NO_CONSUMER_EXISTS;
+      case INPUT_EVENT_ACK_STATE_UNKNOWN:
+        return INPUT_EVENT_UNHANDLED;
+    }
+  }
+  NOTREACHED();
+  return INPUT_EVENT_UNHANDLED;
+}
+
+InputEventAckState ToAckState(InputEventDisposition disposition) {
+  switch (disposition) {
+    case INPUT_EVENT_UNHANDLED:
+      return INPUT_EVENT_ACK_STATE_UNKNOWN;
+    case INPUT_EVENT_IMPL_THREAD_CONSUMED:
+      return INPUT_EVENT_ACK_STATE_CONSUMED;
+    case INPUT_EVENT_IMPL_THREAD_NO_CONSUMER_EXISTS:
+      return INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS;
+    case INPUT_EVENT_IMPL_THREAD_BOUNCE_TO_MAIN:
+      return INPUT_EVENT_ACK_STATE_NOT_CONSUMED;
+    case INPUT_EVENT_COULD_NOT_DELIVER:
+      return INPUT_EVENT_ACK_STATE_NOT_CONSUMED;
+    case INPUT_EVENT_MAIN_THREAD_CONSUMED:
+      return INPUT_EVENT_ACK_STATE_CONSUMED;
+    case INPUT_EVENT_MAIN_THREAD_PREVENT_DEFAULTED:
+      return INPUT_EVENT_ACK_STATE_CONSUMED;
+    case INPUT_EVENT_MAIN_THREAD_NOT_PREVENT_DEFAULTED:
+      return INPUT_EVENT_ACK_STATE_NOT_CONSUMED;
+    case INPUT_EVENT_MAIN_THREAD_NO_CONSUMER_EXISTS:
+      return INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS;
+  }
+  NOTREACHED();
+  return INPUT_EVENT_ACK_STATE_UNKNOWN;
+}
+
+}  // namespace content