WebUIHandler for chrome://keyboard

ui/keyboard/keyboard_ui_handler.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 "ui/keyboard/keyboard_ui_handler.h"
+
+#include <string>
+
+#include "base/bind.h"
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "content/public/browser/web_ui.h"
+#include "ui/aura/root_window.h"
+#include "ui/base/events/event.h"
+#include "ui/keyboard/keyboard_util.h"
+
+namespace keyboard {
+
+KeyboardUIHandler::KeyboardUIHandler() : root_window_(NULL) {
+}
+
+KeyboardUIHandler::KeyboardUIHandler(aura::RootWindow* root_window)
+    : root_window_(root_window) {
+}
+
+KeyboardUIHandler::~KeyboardUIHandler() {
+}
+
+void KeyboardUIHandler::RegisterMessages() {
+  web_ui()->RegisterMessageCallback(
+      "sendKeyEvent",
+      base::Bind(&KeyboardUIHandler::HandleSendKeyEventMessage,
+                 base::Unretained(this)));
+}
+
+void KeyboardUIHandler::HandleSendKeyEventMessage(const base::ListValue* args) {
+  std::string error;
+  scoped_ptr<ui::KeyEvent> event(keyboard::KeyEventFromArgs(args, &error));
+  if (!event) {
+    LOG(ERROR) << "sendKeyEvent failed: " << error;
+    return;
+  }
+
+  if (root_window_) {
+    root_window_->AsRootWindowHostDelegate()->OnHostKeyEvent(event.get());
+  } else {
+    DLOG(INFO) << "KeyboardUIHandler handling sendKeyEvent: key_code="
+        << event->key_code();
+  }
+}
+
+}  // namespace keyboard