Wrap the virtual keyboard in a container view.

chrome/browser/ui/touch/frame/keyboard_container_view.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 "chrome/browser/ui/touch/frame/keyboard_container_view.h"
+
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/renderer_host/site_instance.h"
+#include "chrome/browser/ui/views/dom_view.h"
+#include "chrome/common/url_constants.h"
+
+namespace {
+
+// Make the provided view and all of its descendents unfocusable.
+void MakeViewHierarchyUnfocusable(views::View* view) {
+  view->SetFocusable(false);
+  for (int i = 0; i < view->GetChildViewCount(); ++i) {
+    MakeViewHierarchyUnfocusable(view->GetChildViewAt(i));
+  }
+}
+
+}  // namepsace
+
+///////////////////////////////////////////////////////////////////////////////
+// KeyboardContainerView, public:
+
+KeyboardContainerView::KeyboardContainerView(Profile* profile)
+    : dom_view_(new DOMView) {
+  GURL keyboard_url(chrome::kChromeUIKeyboardURL);
+  dom_view_->Init(profile,
+      SiteInstance::CreateSiteInstanceForURL(profile, keyboard_url));
+  dom_view_->LoadURL(keyboard_url);
+
+  dom_view_->SetVisible(true);
+  AddChildView(dom_view_);
+}
+
+KeyboardContainerView::~KeyboardContainerView() {
+}
+
+void KeyboardContainerView::Layout() {
+  // TODO(bryeung): include a border between the keyboard and the client view
+  dom_view_->SetBounds(0, 0, width(), height());

[sky, 2011/01/05 16:52:51]

Use FillLayout instead of this.

[bryeung, 2011/01/10 22:32:19]

I switched to FillLayout but that causes rendering issues: namely the contents
of the DOMView don't show up.  As I'm going to need custom layout to put a
border on this anyway, are you okay with this going in as-is, or should I dig
into this more deeply?

+  dom_view_->Layout();
+
+  // The keyboard must never be focusable, or it will steal the focus from
+  // the page the user is trying to type into.
+  MakeViewHierarchyUnfocusable(this);

[sky, 2011/01/05 16:52:51]

Can you do this once? Say in the constructor or in ViewHieararchyChanged?

[bryeung, 2011/01/10 22:32:19]

Seems to work in ViewHierarchyChanged.  Good suggestion: thanks!

+}