WebUIHandler for chrome://keyboard

ui/keyboard/keyboard_ui_handler.cc

Index: ui/keyboard/keyboard_ui_handler.cc
diff --git a/ui/keyboard/keyboard_ui_handler.cc b/ui/keyboard/keyboard_ui_handler.cc
new file mode 100644
index 0000000000000000000000000000000000000000..92a81852fccb1a765dc0d927dd52fdbd7c6db74a
--- /dev/null
+++ b/ui/keyboard/keyboard_ui_handler.cc
@@ -0,0 +1,49 @@
+// 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(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());

[sadrul, 2013/04/18 02:58:28]

Does it make sense to use
web_ui()->GetWebContents()->GetView()->GetNativeView()->GetRootWindow() here
instead? That way, the KUIHandler/Controller doesn't need to carry the
RootWindow around

[bryeung, 2013/04/18 14:42:36]

Clever!  This is a great simplification.  Done.

+  } else {
+    DLOG(INFO) << "KeyboardUIHandler handling sendKeyEvent: key_code="
+        << event->key_code();
+  }
+}
+
+}  // namespace keyboard