text: // 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/views/dom_view.h"
  
  #include "chrome/browser/profiles/profile.h"
  #include "chrome/browser/renderer_preferences_util.h"
  #include "chrome/browser/ui/views/tab_contents/tab_contents_view_views.h"
  #include "content/public/browser/site_instance.h"
  #include "content/public/browser/web_contents.h"
  #include "ui/views/focus/focus_manager.h"
  
  using content::SiteInstance;
  using content::WebContents;
  
  // static
  const char DOMView::kViewClassName[] =
      "browser/ui/views/DOMView";
  
  DOMView::DOMView() : initialized_(false) {
    set_focusable(true);
  }
  
  DOMView::~DOMView() {
    if (native_view())
      Detach();
  }
  
  std::string DOMView::GetClassName() const {
    return kViewClassName;
  }
  
  bool DOMView::Init(Profile* profile, SiteInstance* instance) {
    if (initialized_)
      return true;
  
    initialized_ = true;
    WebContents* web_contents = CreateTabContents(profile, instance);
    dom_contents_.reset(new TabContentsWrapper(web_contents));
  
    renderer_preferences_util::UpdateFromSystemSettings(
          web_contents->GetMutableRendererPrefs(), profile);
  
    // Attach the native_view now if the view is already added to Widget.
    if (GetWidget())
      AttachTabContents();
  
    return true;
  }
  
  WebContents* DOMView::CreateTabContents(Profile* profile,
                                          SiteInstance* instance) {
    return WebContents::Create(profile, instance, MSG_ROUTING_NONE, NULL, NULL);
  }
  
  void DOMView::LoadURL(const GURL& url) {
    DCHECK(initialized_);
    dom_contents_->web_contents()->GetController().LoadURL(
        url, content::Referrer(), content::PAGE_TRANSITION_START_PAGE,
        std::string());
  }
  
  bool DOMView::SkipDefaultKeyEventProcessing(const views::KeyEvent& e) {
    // Don't move the focus to the next view when tab is pressed, we want the
    // key event to be propagated to the render view for doing the tab traversal
    // there.
    return views::FocusManager::IsTabTraversalKeyEvent(e);
  }
  
  void DOMView::OnFocus() {
    dom_contents_->web_contents()->Focus();
  }
  
  void DOMView::ViewHierarchyChanged(bool is_add, views::View* parent,
                                     views::View* child) {
    // Attach the native_view when this is added to Widget if
    // the native view has not been attached yet and tab_contents_ exists.
    views::NativeViewHost::ViewHierarchyChanged(is_add, parent, child);
    if (is_add && GetWidget() && !native_view() && dom_contents_.get())
      AttachTabContents();
    else if (!is_add && child == this && native_view())
      Detach();
  }
  
  void DOMView::AttachTabContents() {
    Attach(dom_contents_->web_contents()->GetNativeView());
  }
  