Convert Gamepad IPC messages into mojo interface.

content/common/gamepad_param_traits.cc

-// Copyright 2014 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/gamepad_param_traits.h"
-
-#include <stddef.h>
-
-#include "base/macros.h"
-#include "base/pickle.h"
-#include "base/strings/string16.h"
-#include "base/strings/utf_string_conversions.h"
-#include "ipc/ipc_message_utils.h"
-#include "third_party/WebKit/public/platform/WebGamepad.h"
-
-using blink::WebGamepad;
-
-namespace {
-
-void LogWebUCharString(
-    const blink::WebUChar web_string[],
-    const size_t array_size,
-    std::string* log) {
-  base::string16 utf16;
-  utf16.reserve(array_size);
-  for (size_t i = 0; i < array_size && web_string[i]; ++i) {
-    utf16[i] = web_string[i];
-  }
-  log->append(base::UTF16ToUTF8(utf16));
-}
-
-}
-
-namespace IPC {
-
-void ParamTraits<WebGamepad>::Write(base::Pickle* m, const WebGamepad& p) {
-  m->WriteData(reinterpret_cast<const char*>(&p), sizeof(WebGamepad));
-}
-
-bool ParamTraits<WebGamepad>::Read(const base::Pickle* m,
-                                   base::PickleIterator* iter,
-                                   WebGamepad* p) {
-  int length;
-  const char* data;
-  if (!iter->ReadData(&data, &length) || length != sizeof(WebGamepad))
-    return false;
-  memcpy(p, data, sizeof(WebGamepad));
-
-  return true;
-}
-
-void ParamTraits<WebGamepad>::Log(
-    const WebGamepad& p,
-    std::string* l) {
-  l->append("WebGamepad(");
-  LogParam(p.connected, l);
-  LogWebUCharString(p.id, WebGamepad::idLengthCap, l);
-  l->append(",");
-  LogWebUCharString(p.mapping, WebGamepad::mappingLengthCap, l);
-  l->append(",");
-  LogParam(p.timestamp, l);
-  l->append(",");
-  LogParam(p.axesLength, l);
-  l->append(", [");
-  for (size_t i = 0; i < arraysize(p.axes); ++i) {
-    l->append(base::StringPrintf("%f%s", p.axes[i],
-        i < (arraysize(p.axes) - 1) ? ", " : "], "));
-  }
-  LogParam(p.buttonsLength, l);
-  l->append(", [");
-  for (size_t i = 0; i < arraysize(p.buttons); ++i) {
-    l->append(base::StringPrintf("(%u, %f)%s",
-        p.buttons[i].pressed, p.buttons[i].value,
-        i < (arraysize(p.buttons) - 1) ? ", " : "], "));
-  }
-  l->append(")");
-}
-
-} // namespace IPC