xref: /external/chromium_org/chrome/browser/ui/views/frame/browser_view.cc

// Copyright 2012 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/frame/browser_view.h"

#include <algorithm>

#include "base/auto_reset.h"
#include "base/command_line.h"
#include "base/i18n/rtl.h"
#include "base/memory/scoped_ptr.h"
#include "base/metrics/histogram.h"
#include "base/prefs/pref_service.h"
#include "base/strings/string_number_conversions.h"
#include "chrome/app/chrome_command_ids.h"
#include "chrome/app/chrome_dll_resource.h"
#include "chrome/browser/app_mode/app_mode_utils.h"
#include "chrome/browser/bookmarks/bookmark_stats.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/extensions/extension_util.h"
#include "chrome/browser/extensions/tab_helper.h"
#include "chrome/browser/infobars/infobar_service.h"
#include "chrome/browser/native_window_notification_source.h"
#include "chrome/browser/profiles/avatar_menu.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_avatar_icon_util.h"
#include "chrome/browser/profiles/profile_info_cache.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/browser/profiles/profiles_state.h"
#include "chrome/browser/search/search.h"
#include "chrome/browser/sessions/tab_restore_service.h"
#include "chrome/browser/sessions/tab_restore_service_factory.h"
#include "chrome/browser/signin/signin_header_helper.h"
#include "chrome/browser/speech/tts_controller.h"
#include "chrome/browser/themes/theme_properties.h"
#include "chrome/browser/themes/theme_service_factory.h"
#include "chrome/browser/translate/chrome_translate_client.h"
#include "chrome/browser/ui/app_modal_dialogs/app_modal_dialog.h"
#include "chrome/browser/ui/app_modal_dialogs/app_modal_dialog_queue.h"
#include "chrome/browser/ui/bookmarks/bookmark_bar_constants.h"
#include "chrome/browser/ui/bookmarks/bookmark_bubble_delegate.h"
#include "chrome/browser/ui/bookmarks/bookmark_bubble_sign_in_delegate.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_command_controller.h"
#include "chrome/browser/ui/browser_commands.h"
#include "chrome/browser/ui/browser_dialogs.h"
#include "chrome/browser/ui/browser_finder.h"
#include "chrome/browser/ui/browser_list.h"
#include "chrome/browser/ui/browser_window_state.h"
#include "chrome/browser/ui/omnibox/omnibox_popup_model.h"
#include "chrome/browser/ui/omnibox/omnibox_popup_view.h"
#include "chrome/browser/ui/omnibox/omnibox_view.h"
#include "chrome/browser/ui/search/search_delegate.h"
#include "chrome/browser/ui/search/search_model.h"
#include "chrome/browser/ui/search/search_ui.h"
#include "chrome/browser/ui/tabs/tab_menu_model.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "chrome/browser/ui/view_ids.h"
#include "chrome/browser/ui/views/accelerator_table.h"
#include "chrome/browser/ui/views/accessibility/invert_bubble_view.h"
#include "chrome/browser/ui/views/bookmarks/bookmark_bar_view.h"
#include "chrome/browser/ui/views/bookmarks/bookmark_bubble_view.h"
#include "chrome/browser/ui/views/browser_dialogs.h"
#include "chrome/browser/ui/views/download/download_in_progress_dialog_view.h"
#include "chrome/browser/ui/views/download/download_shelf_view.h"
#include "chrome/browser/ui/views/extensions/bookmark_app_bubble_view.h"
#include "chrome/browser/ui/views/frame/browser_view_layout.h"
#include "chrome/browser/ui/views/frame/browser_view_layout_delegate.h"
#include "chrome/browser/ui/views/frame/contents_layout_manager.h"
#include "chrome/browser/ui/views/frame/immersive_mode_controller.h"
#include "chrome/browser/ui/views/frame/native_browser_frame_factory.h"
#include "chrome/browser/ui/views/frame/top_container_view.h"
#include "chrome/browser/ui/views/frame/web_contents_close_handler.h"
#include "chrome/browser/ui/views/fullscreen_exit_bubble_views.h"
#include "chrome/browser/ui/views/infobars/infobar_container_view.h"
#include "chrome/browser/ui/views/location_bar/location_bar_view.h"
#include "chrome/browser/ui/views/location_bar/location_icon_view.h"
#include "chrome/browser/ui/views/omnibox/omnibox_view_views.h"
#include "chrome/browser/ui/views/profiles/avatar_menu_bubble_view.h"
#include "chrome/browser/ui/views/profiles/avatar_menu_button.h"
#include "chrome/browser/ui/views/profiles/profile_chooser_view.h"
#include "chrome/browser/ui/views/settings_api_bubble_helper_views.h"
#include "chrome/browser/ui/views/status_bubble_views.h"
#include "chrome/browser/ui/views/tabs/browser_tab_strip_controller.h"
#include "chrome/browser/ui/views/tabs/tab.h"
#include "chrome/browser/ui/views/tabs/tab_strip.h"
#include "chrome/browser/ui/views/toolbar/reload_button.h"
#include "chrome/browser/ui/views/toolbar/toolbar_view.h"
#include "chrome/browser/ui/views/translate/translate_bubble_view.h"
#include "chrome/browser/ui/views/update_recommended_message_box.h"
#include "chrome/browser/ui/views/website_settings/permissions_bubble_view.h"
#include "chrome/browser/ui/views/website_settings/website_settings_popup_view.h"
#include "chrome/browser/ui/website_settings/permission_bubble_manager.h"
#include "chrome/browser/ui/window_sizer/window_sizer.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/pref_names.h"
#include "chrome/common/url_constants.h"
#include "chrome/grit/chromium_strings.h"
#include "chrome/grit/generated_resources.h"
#include "chrome/grit/locale_settings.h"
#include "components/signin/core/common/profile_management_switches.h"
#include "components/translate/core/browser/language_state.h"
#include "content/app/resources/grit/content_resources.h"
#include "content/public/browser/download_manager.h"
#include "content/public/browser/native_web_keyboard_event.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/user_metrics.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/content_switches.h"
#include "grit/theme_resources.h"
#include "ui/accessibility/ax_view_state.h"
#include "ui/aura/client/window_tree_client.h"
#include "ui/aura/window.h"
#include "ui/aura/window_tree_host.h"
#include "ui/base/accelerators/accelerator.h"
#include "ui/base/hit_test.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/base/theme_provider.h"
#include "ui/events/event_utils.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/color_utils.h"
#include "ui/gfx/rect_conversions.h"
#include "ui/gfx/screen.h"
#include "ui/strings/grit/ui_strings.h"
#include "ui/views/controls/button/menu_button.h"
#include "ui/views/controls/textfield/textfield.h"
#include "ui/views/controls/webview/webview.h"
#include "ui/views/focus/external_focus_tracker.h"
#include "ui/views/focus/view_storage.h"
#include "ui/views/layout/grid_layout.h"
#include "ui/views/widget/native_widget.h"
#include "ui/views/widget/root_view.h"
#include "ui/views/widget/widget.h"
#include "ui/views/window/dialog_delegate.h"

#if defined(OS_WIN)
#include "base/win/windows_version.h"
#include "chrome/browser/jumplist_win.h"
#include "ui/views/win/scoped_fullscreen_visibility.h"
#endif

#if defined(ENABLE_ONE_CLICK_SIGNIN)
#include "chrome/browser/ui/sync/one_click_signin_bubble_delegate.h"
#include "chrome/browser/ui/sync/one_click_signin_bubble_links_delegate.h"
#include "chrome/browser/ui/views/sync/one_click_signin_bubble_view.h"
#endif

#if defined(OS_CHROMEOS)
#include "chrome/browser/ui/ash/multi_user/multi_user_window_manager.h"
#endif

using base::TimeDelta;
using base::UserMetricsAction;
using content::NativeWebKeyboardEvent;
using content::SSLStatus;
using content::WebContents;
using views::ColumnSet;
using views::GridLayout;
using web_modal::WebContentsModalDialogHost;

namespace {
// The name of a key to store on the window handle so that other code can
// locate this object using just the handle.
const char* const kBrowserViewKey = "__BROWSER_VIEW__";

// The number of milliseconds between loading animation frames.
const int kLoadingAnimationFrameTimeMs = 30;

// TODO(kuan): These functions are temporarily for the bookmark bar while its
// detached state is at the top of the page;  it'll be moved to float on the
// content page in the very near future, at which time, these local functions
// will be removed.
void PaintDetachedBookmarkBar(gfx::Canvas* canvas,
                              DetachableToolbarView* view,
                              ThemeService* theme_service) {
  // Paint background for detached state; if animating, this is fade in/out.
  canvas->DrawColor(
      chrome::GetDetachedBookmarkBarBackgroundColor(theme_service));
  // Draw the separators above and below bookmark bar;
  // if animating, these are fading in/out.
  SkColor separator_color =
      chrome::GetDetachedBookmarkBarSeparatorColor(theme_service);
  DetachableToolbarView::PaintHorizontalBorder(canvas, view, true,
                                               separator_color);
  // The bottom border needs to be 1-px thick in both regular and retina
  // displays, so we can't use DetachableToolbarView::PaintHorizontalBorder
  // which paints a 2-px thick border in retina display.
  SkPaint paint;
  paint.setAntiAlias(false);
  // Sets border to 1-px thick regardless of scale factor.
  paint.setStrokeWidth(0);
  // Bottom border is at 50% opacity of top border.
  paint.setColor(SkColorSetA(separator_color,
                             SkColorGetA(separator_color) / 2));
  // Calculate thickness of bottom border as per current scale factor to
  // determine where to draw the 1-px thick border.
  float thickness = views::NonClientFrameView::kClientEdgeThickness /
                    canvas->image_scale();
  SkScalar y = SkIntToScalar(view->height()) - SkFloatToScalar(thickness);
  canvas->sk_canvas()->drawLine(SkIntToScalar(0), y,
                                SkIntToScalar(view->width()), y, paint);
}

void PaintAttachedBookmarkBar(gfx::Canvas* canvas,
                              DetachableToolbarView* view,
                              BrowserView* browser_view,
                              chrome::HostDesktopType host_desktop_type,
                              int toolbar_overlap) {
  // Paint background for attached state, this is fade in/out.
  gfx::Point background_image_offset =
      browser_view->OffsetPointForToolbarBackgroundImage(
          gfx::Point(view->GetMirroredX(), view->y()));
  DetachableToolbarView::PaintBackgroundAttachedMode(canvas,
      view->GetThemeProvider(), view->GetLocalBounds(),
      background_image_offset, host_desktop_type);
  if (view->height() >= toolbar_overlap) {
    // Draw the separator below bookmark bar; this is fading in/out.
    DetachableToolbarView::PaintHorizontalBorder(canvas, view, false,
        ThemeProperties::GetDefaultColor(
            ThemeProperties::COLOR_TOOLBAR_SEPARATOR));
  }
}

}  // namespace

// static
const char BrowserView::kViewClassName[] = "BrowserView";

///////////////////////////////////////////////////////////////////////////////

// Delegate implementation for BrowserViewLayout. Usually just forwards calls
// into BrowserView.
class BrowserViewLayoutDelegateImpl : public BrowserViewLayoutDelegate {
 public:
  explicit BrowserViewLayoutDelegateImpl(BrowserView* browser_view)
      : browser_view_(browser_view) {}
  virtual ~BrowserViewLayoutDelegateImpl() {}

  // BrowserViewLayoutDelegate overrides:
  virtual views::View* GetContentsWebView() const OVERRIDE {
    return browser_view_->contents_web_view_;
  }

  virtual bool DownloadShelfNeedsLayout() const OVERRIDE {
    DownloadShelfView* download_shelf = browser_view_->download_shelf_.get();
    // Re-layout the shelf either if it is visible or if its close animation
    // is currently running.
    return download_shelf &&
           (download_shelf->IsShowing() || download_shelf->IsClosing());
  }

  virtual bool IsTabStripVisible() const OVERRIDE {
    return browser_view_->IsTabStripVisible();
  }

  virtual gfx::Rect GetBoundsForTabStripInBrowserView() const OVERRIDE {
    gfx::RectF bounds_f(browser_view_->frame()->GetBoundsForTabStrip(
        browser_view_->tabstrip()));
    views::View::ConvertRectToTarget(browser_view_->parent(), browser_view_,
        &bounds_f);
    return gfx::ToEnclosingRect(bounds_f);
  }

  virtual int GetTopInsetInBrowserView() const OVERRIDE {
    return browser_view_->frame()->GetTopInset() -
        browser_view_->y();
  }

  virtual int GetThemeBackgroundXInset() const OVERRIDE {
    // TODO(pkotwicz): Return the inset with respect to the left edge of the
    // BrowserView.
    return browser_view_->frame()->GetThemeBackgroundXInset();
  }

  virtual bool IsToolbarVisible() const OVERRIDE {
    return browser_view_->IsToolbarVisible();
  }

  virtual bool IsBookmarkBarVisible() const OVERRIDE {
    return browser_view_->IsBookmarkBarVisible();
  }

  virtual FullscreenExitBubbleViews* GetFullscreenExitBubble() const OVERRIDE {
    return browser_view_->fullscreen_exit_bubble();
  }

 private:
  BrowserView* browser_view_;

  DISALLOW_COPY_AND_ASSIGN(BrowserViewLayoutDelegateImpl);
};

///////////////////////////////////////////////////////////////////////////////
// BookmarkExtensionBackground, private:
// This object serves as the views::Background object which is used to layout
// and paint the bookmark bar.
class BookmarkExtensionBackground : public views::Background {
 public:
  BookmarkExtensionBackground(BrowserView* browser_view,
                              DetachableToolbarView* host_view,
                              Browser* browser);

  // View methods overridden from views:Background.
  virtual void Paint(gfx::Canvas* canvas, views::View* view) const OVERRIDE;

 private:
  BrowserView* browser_view_;

  // The view hosting this background.
  DetachableToolbarView* host_view_;

  Browser* browser_;

  DISALLOW_COPY_AND_ASSIGN(BookmarkExtensionBackground);
};

BookmarkExtensionBackground::BookmarkExtensionBackground(
    BrowserView* browser_view,
    DetachableToolbarView* host_view,
    Browser* browser)
    : browser_view_(browser_view),
      host_view_(host_view),
      browser_(browser) {
}

void BookmarkExtensionBackground::Paint(gfx::Canvas* canvas,
                                        views::View* view) const {
  int toolbar_overlap = host_view_->GetToolbarOverlap();
  if (!host_view_->IsDetached()) {
    PaintAttachedBookmarkBar(canvas, host_view_, browser_view_,
                             browser_->host_desktop_type(), toolbar_overlap);
    return;
  }

  // As 'hidden' according to the animation is the full in-tab state, we invert
  // the value - when current_state is at '0', we expect the bar to be docked.
  double current_state = 1 - host_view_->GetAnimationValue();

  ThemeService* ts =
      ThemeServiceFactory::GetForProfile(browser_->profile());
  if (current_state == 0.0 || current_state == 1.0) {
    PaintDetachedBookmarkBar(canvas, host_view_, ts);
    return;
  }
  // While animating, set opacity to cross-fade between attached and detached
  // backgrounds including their respective separators.
  int detached_alpha = static_cast<uint8>(current_state * 255);
  int attached_alpha = 255 - detached_alpha;
  if (browser_->bookmark_bar_state() == BookmarkBar::DETACHED) {
    // To animate from attached to detached state:
    // - fade out attached background
    // - fade in detached background.
    canvas->SaveLayerAlpha(attached_alpha);
    PaintAttachedBookmarkBar(canvas, host_view_, browser_view_,
                             browser_->host_desktop_type(),
                             toolbar_overlap);
    canvas->Restore();
    canvas->SaveLayerAlpha(detached_alpha);
    PaintDetachedBookmarkBar(canvas, host_view_, ts);
  } else {
    // To animate from detached to attached state:
    // - fade out detached background
    // - fade in attached background.
    canvas->SaveLayerAlpha(detached_alpha);
    PaintDetachedBookmarkBar(canvas, host_view_, ts);
    canvas->Restore();
    canvas->SaveLayerAlpha(attached_alpha);
    PaintAttachedBookmarkBar(canvas, host_view_, browser_view_,
                             browser_->host_desktop_type(),
                             toolbar_overlap);
  }
  canvas->Restore();
}

///////////////////////////////////////////////////////////////////////////////
// BrowserView, public:

BrowserView::BrowserView()
    : views::ClientView(NULL, NULL),
      last_focused_view_storage_id_(
          views::ViewStorage::GetInstance()->CreateStorageID()),
      frame_(NULL),
      top_container_(NULL),
      tabstrip_(NULL),
      toolbar_(NULL),
      find_bar_host_view_(NULL),
      infobar_container_(NULL),
      contents_web_view_(NULL),
      contents_container_(NULL),
      initialized_(false),
      in_process_fullscreen_(false),
#if defined(OS_WIN)
      hung_window_detector_(&hung_plugin_action_),
      ticker_(0),
#endif
      force_location_bar_focus_(false),
#if defined(OS_CHROMEOS)
      scroll_end_effect_controller_(ScrollEndEffectController::Create()),
#endif
      activate_modal_dialog_factory_(this) {
}

BrowserView::~BrowserView() {
  // All the tabs should have been destroyed already. If we were closed by the
  // OS with some tabs than the NativeBrowserFrame should have destroyed them.
  DCHECK_EQ(0, browser_->tab_strip_model()->count());

  // Immersive mode may need to reparent views before they are removed/deleted.
  immersive_mode_controller_.reset();

  browser_->tab_strip_model()->RemoveObserver(this);

#if defined(OS_WIN)
  // Stop hung plugin monitoring.
  ticker_.Stop();
  ticker_.UnregisterTickHandler(&hung_window_detector_);

  // Terminate the jumplist (must be called before browser_->profile() is
  // destroyed.
  if (jumplist_) {
    jumplist_->Terminate();
  }
#endif

  // We destroy the download shelf before |browser_| to remove its child
  // download views from the set of download observers (since the observed
  // downloads can be destroyed along with |browser_| and the observer
  // notifications will call back into deleted objects).
  BrowserViewLayout* browser_view_layout = GetBrowserViewLayout();
  if (browser_view_layout)
    browser_view_layout->set_download_shelf(NULL);
  download_shelf_.reset();

  // The TabStrip attaches a listener to the model. Make sure we shut down the
  // TabStrip first so that it can cleanly remove the listener.
  if (tabstrip_) {
    tabstrip_->parent()->RemoveChildView(tabstrip_);
    if (browser_view_layout)
      browser_view_layout->set_tab_strip(NULL);
    delete tabstrip_;
    tabstrip_ = NULL;
  }
  // Child views maintain PrefMember attributes that point to
  // OffTheRecordProfile's PrefService which gets deleted by ~Browser.
  RemoveAllChildViews(true);
  toolbar_ = NULL;

  // Explicitly set browser_ to NULL.
  browser_.reset();
}

void BrowserView::Init(Browser* browser) {
  browser_.reset(browser);
  browser_->tab_strip_model()->AddObserver(this);
  immersive_mode_controller_.reset(
      chrome::CreateImmersiveModeController(browser_->host_desktop_type()));
}

// static
BrowserView* BrowserView::GetBrowserViewForNativeWindow(
    gfx::NativeWindow window) {
  views::Widget* widget = views::Widget::GetWidgetForNativeWindow(window);
  return widget ?
      reinterpret_cast<BrowserView*>(widget->GetNativeWindowProperty(
          kBrowserViewKey)) : NULL;
}

// static
BrowserView* BrowserView::GetBrowserViewForBrowser(const Browser* browser) {
  return static_cast<BrowserView*>(browser->window());
}

void BrowserView::InitStatusBubble() {
  status_bubble_.reset(new StatusBubbleViews(contents_web_view_));
  contents_web_view_->SetStatusBubble(status_bubble_.get());
}

void BrowserView::InitPermissionBubbleView() {
  permission_bubble_view_.reset(new PermissionBubbleViewViews(
      GetLocationBarView()->location_icon_view()));
}

gfx::Rect BrowserView::GetToolbarBounds() const {
  gfx::Rect toolbar_bounds(toolbar_->bounds());
  if (toolbar_bounds.IsEmpty())
    return toolbar_bounds;
  // The apparent toolbar edges are outside the "real" toolbar edges.
  toolbar_bounds.Inset(-views::NonClientFrameView::kClientEdgeThickness, 0);
  return toolbar_bounds;
}

gfx::Rect BrowserView::GetFindBarBoundingBox() const {
  return GetBrowserViewLayout()->GetFindBarBoundingBox();
}

int BrowserView::GetTabStripHeight() const {
  // We want to return tabstrip_->height(), but we might be called in the midst
  // of layout, when that hasn't yet been updated to reflect the current state.
  // So return what the tabstrip height _ought_ to be right now.
  return IsTabStripVisible() ? tabstrip_->GetPreferredSize().height() : 0;
}

gfx::Point BrowserView::OffsetPointForToolbarBackgroundImage(
    const gfx::Point& point) const {
  // The background image starts tiling horizontally at the window left edge and
  // vertically at the top edge of the horizontal tab strip (or where it would
  // be).  We expect our parent's origin to be the window origin.
  gfx::Point window_point(point + GetMirroredPosition().OffsetFromOrigin());
  window_point.Offset(frame_->GetThemeBackgroundXInset(),
                      -frame_->GetTopInset());
  return window_point;
}

bool BrowserView::IsTabStripVisible() const {
  if (immersive_mode_controller_->ShouldHideTopViews() &&
      immersive_mode_controller_->ShouldHideTabIndicators())
    return false;
  return browser_->SupportsWindowFeature(Browser::FEATURE_TABSTRIP);
}

bool BrowserView::IsOffTheRecord() const {
  return browser_->profile()->IsOffTheRecord();
}

bool BrowserView::IsGuestSession() const {
  return browser_->profile()->IsGuestSession();
}

bool BrowserView::IsRegularOrGuestSession() const {
  return profiles::IsRegularOrGuestSession(browser_.get());
}

bool BrowserView::ShouldShowAvatar() const {
#if defined(OS_CHROMEOS)
  if (!browser_->is_type_tabbed() && !browser_->is_app())
    return false;
  // Don't show incognito avatar in the guest session.
  if (IsOffTheRecord() && !IsGuestSession())
    return true;
  // This function is called via BrowserNonClientFrameView::UpdateAvatarInfo
  // during the creation of the BrowserWindow, so browser->window() will not
  // yet be set. In this case we can safely return false.
  if (!browser_->window())
    return false;
  return chrome::MultiUserWindowManager::ShouldShowAvatar(
      browser_->window()->GetNativeWindow());
#else
  if (!IsBrowserTypeNormal())
    return false;
  if (IsOffTheRecord())  // Desktop guest is incognito and needs avatar.
    return true;
  // Tests may not have a profile manager.
  if (!g_browser_process->profile_manager())
    return false;
  ProfileInfoCache& cache =
      g_browser_process->profile_manager()->GetProfileInfoCache();
  if (cache.GetIndexOfProfileWithPath(browser_->profile()->GetPath()) ==
      std::string::npos) {
    return false;
  }

  return AvatarMenu::ShouldShowAvatarMenu();
#endif
}

bool BrowserView::GetAccelerator(int cmd_id,
                                 ui::Accelerator* accelerator) const {
  // We retrieve the accelerator information for standard accelerators
  // for cut, copy and paste.
  if (chrome::GetStandardAcceleratorForCommandId(cmd_id, accelerator))
    return true;
  // Else, we retrieve the accelerator information from the accelerator table.
  for (std::map<ui::Accelerator, int>::const_iterator it =
           accelerator_table_.begin(); it != accelerator_table_.end(); ++it) {
    if (it->second == cmd_id) {
      *accelerator = it->first;
      return true;
    }
  }
  // Else, we retrieve the accelerator information from Ash (if applicable).
  return chrome::GetAshAcceleratorForCommandId(
      cmd_id, browser_->host_desktop_type(), accelerator);
}

bool BrowserView::IsAcceleratorRegistered(const ui::Accelerator& accelerator) {
  return accelerator_table_.find(accelerator) != accelerator_table_.end();
}

WebContents* BrowserView::GetActiveWebContents() const {
  return browser_->tab_strip_model()->GetActiveWebContents();
}

gfx::ImageSkia BrowserView::GetOTRAvatarIcon() const {
  return *GetThemeProvider()->GetImageSkiaNamed(IDR_OTR_ICON);
}

///////////////////////////////////////////////////////////////////////////////
// BrowserView, BrowserWindow implementation:

void BrowserView::Show() {
  // If the window is already visible, just activate it.
  if (frame_->IsVisible()) {
    frame_->Activate();
    return;
  }

  // Showing the window doesn't make the browser window active right away.
  // This can cause SetFocusToLocationBar() to skip setting focus to the
  // location bar. To avoid this we explicilty let SetFocusToLocationBar()
  // know that it's ok to steal focus.
  force_location_bar_focus_ = true;

  // Setting the focus doesn't work when the window is invisible, so any focus
  // initialization that happened before this will be lost.
  //
  // We really "should" restore the focus whenever the window becomes unhidden,
  // but I think initializing is the only time where this can happen where
  // there is some focus change we need to pick up, and this is easier than
  // plumbing through an un-hide message all the way from the frame.
  //
  // If we do find there are cases where we need to restore the focus on show,
  // that should be added and this should be removed.
  RestoreFocus();

  frame_->Show();

  force_location_bar_focus_ = false;

  browser()->OnWindowDidShow();

  chrome::MaybeShowInvertBubbleView(this);
}

void BrowserView::ShowInactive() {
  if (!frame_->IsVisible())
    frame_->ShowInactive();
}

void BrowserView::Hide() {
  // Not implemented.
}

void BrowserView::SetBounds(const gfx::Rect& bounds) {
  ExitFullscreen();
  GetWidget()->SetBounds(bounds);
}

void BrowserView::Close() {
  frame_->Close();
}

void BrowserView::Activate() {
  frame_->Activate();
}

void BrowserView::Deactivate() {
  frame_->Deactivate();
}

bool BrowserView::IsActive() const {
  return frame_->IsActive();
}

void BrowserView::FlashFrame(bool flash) {
  frame_->FlashFrame(flash);
}

bool BrowserView::IsAlwaysOnTop() const {
  return false;
}

void BrowserView::SetAlwaysOnTop(bool always_on_top) {
  // Not implemented for browser windows.
  NOTIMPLEMENTED();
}

gfx::NativeWindow BrowserView::GetNativeWindow() {
  // While the browser destruction is going on, the widget can already be gone,
  // but utility functions like FindBrowserWithWindow will come here and crash.
  // We short circuit therefore.
  if (!GetWidget())
    return NULL;
  return GetWidget()->GetTopLevelWidget()->GetNativeWindow();
}

BrowserWindowTesting* BrowserView::GetBrowserWindowTesting() {
  return this;
}

StatusBubble* BrowserView::GetStatusBubble() {
  return status_bubble_.get();
}

namespace {
  // Only used by ToolbarSizeChanged() below, but placed here because template
  // arguments (to base::AutoReset<>) must have external linkage.
  enum CallState { NORMAL, REENTRANT, REENTRANT_FORCE_FAST_RESIZE };
}

void BrowserView::UpdateTitleBar() {
  frame_->UpdateWindowTitle();
  if (ShouldShowWindowIcon() && !loading_animation_timer_.IsRunning())
    frame_->UpdateWindowIcon();
}

void BrowserView::BookmarkBarStateChanged(
    BookmarkBar::AnimateChangeType change_type) {
  if (bookmark_bar_view_.get()) {
    BookmarkBar::State new_state = browser_->bookmark_bar_state();

    // We don't properly support animating the bookmark bar to and from the
    // detached state in immersive fullscreen.
    bool detached_changed = (new_state == BookmarkBar::DETACHED) ||
        bookmark_bar_view_->IsDetached();
    if (detached_changed && immersive_mode_controller_->IsEnabled())
      change_type = BookmarkBar::DONT_ANIMATE_STATE_CHANGE;

    bookmark_bar_view_->SetBookmarkBarState(new_state, change_type);
  }
  if (MaybeShowBookmarkBar(GetActiveWebContents()))
    Layout();
}

void BrowserView::UpdateDevTools() {
  UpdateDevToolsForContents(GetActiveWebContents(), true);
  Layout();
}

void BrowserView::UpdateLoadingAnimations(bool should_animate) {
  if (should_animate) {
    if (!loading_animation_timer_.IsRunning()) {
      // Loads are happening, and the timer isn't running, so start it.
      last_animation_time_ = base::TimeTicks::Now();
      loading_animation_timer_.Start(FROM_HERE,
          TimeDelta::FromMilliseconds(kLoadingAnimationFrameTimeMs), this,
          &BrowserView::LoadingAnimationCallback);
    }
  } else {
    if (loading_animation_timer_.IsRunning()) {
      last_animation_time_ = base::TimeTicks();
      loading_animation_timer_.Stop();
      // Loads are now complete, update the state if a task was scheduled.
      LoadingAnimationCallback();
    }
  }
}

void BrowserView::SetStarredState(bool is_starred) {
  GetLocationBarView()->SetStarToggled(is_starred);
}

void BrowserView::SetTranslateIconToggled(bool is_lit) {
  GetLocationBarView()->SetTranslateIconToggled(is_lit);
}

void BrowserView::OnActiveTabChanged(content::WebContents* old_contents,
                                     content::WebContents* new_contents,
                                     int index,
                                     int reason) {
  DCHECK(new_contents);

  // If |contents_container_| already has the correct WebContents, we can save
  // some work.  This also prevents extra events from being reported by the
  // Visibility API under Windows, as ChangeWebContents will briefly hide
  // the WebContents window.
  bool change_tab_contents =
      contents_web_view_->web_contents() != new_contents;

  // Update various elements that are interested in knowing the current
  // WebContents.

  // When we toggle the NTP floating bookmarks bar and/or the info bar,
  // we don't want any WebContents to be attached, so that we
  // avoid an unnecessary resize and re-layout of a WebContents.
  if (change_tab_contents) {
    contents_web_view_->SetWebContents(NULL);
    devtools_web_view_->SetWebContents(NULL);
  }

  // Do this before updating InfoBarContainer as the InfoBarContainer may
  // callback to us and trigger layout.
  if (bookmark_bar_view_.get()) {
    bookmark_bar_view_->SetBookmarkBarState(
        browser_->bookmark_bar_state(),
        BookmarkBar::DONT_ANIMATE_STATE_CHANGE);
  }

  infobar_container_->ChangeInfoBarManager(
      InfoBarService::FromWebContents(new_contents));

  if (old_contents && PermissionBubbleManager::FromWebContents(old_contents))
    PermissionBubbleManager::FromWebContents(old_contents)->SetView(NULL);

  if (new_contents && PermissionBubbleManager::FromWebContents(new_contents)) {
    PermissionBubbleManager::FromWebContents(new_contents)->SetView(
        permission_bubble_view_.get());
  }

  UpdateUIForContents(new_contents);

  // Layout for DevTools _before_ setting the both main and devtools WebContents
  // to avoid toggling the size of any of them.
  UpdateDevToolsForContents(new_contents, !change_tab_contents);

  if (change_tab_contents) {
    web_contents_close_handler_->ActiveTabChanged();
    contents_web_view_->SetWebContents(new_contents);
    // The second layout update should be no-op. It will just set the
    // DevTools WebContents.
    UpdateDevToolsForContents(new_contents, true);
  }

  if (!browser_->tab_strip_model()->closing_all() && GetWidget()->IsActive() &&
      GetWidget()->IsVisible()) {
    // We only restore focus if our window is visible, to avoid invoking blur
    // handlers when we are eventually shown.
    new_contents->RestoreFocus();
  }

  // Update all the UI bits.
  UpdateTitleBar();
}

void BrowserView::ZoomChangedForActiveTab(bool can_show_bubble) {
  GetLocationBarView()->ZoomChangedForActiveTab(
      can_show_bubble && !toolbar_->IsWrenchMenuShowing());
}

gfx::Rect BrowserView::GetRestoredBounds() const {
  gfx::Rect bounds;
  ui::WindowShowState state;
  frame_->GetWindowPlacement(&bounds, &state);
  return bounds;
}

ui::WindowShowState BrowserView::GetRestoredState() const {
  gfx::Rect bounds;
  ui::WindowShowState state;
  frame_->GetWindowPlacement(&bounds, &state);
  return state;
}

gfx::Rect BrowserView::GetBounds() const {
  return frame_->GetWindowBoundsInScreen();
}

bool BrowserView::IsMaximized() const {
  return frame_->IsMaximized();
}

bool BrowserView::IsMinimized() const {
  return frame_->IsMinimized();
}

void BrowserView::Maximize() {
  frame_->Maximize();
}

void BrowserView::Minimize() {
  frame_->Minimize();
}

void BrowserView::Restore() {
  frame_->Restore();
}

void BrowserView::EnterFullscreen(
    const GURL& url, FullscreenExitBubbleType bubble_type) {
  if (IsFullscreen())
    return;  // Nothing to do.

  ProcessFullscreen(true, NORMAL_FULLSCREEN, url, bubble_type);
}

void BrowserView::ExitFullscreen() {
  if (!IsFullscreen())
    return;  // Nothing to do.

  ProcessFullscreen(false, NORMAL_FULLSCREEN, GURL(), FEB_TYPE_NONE);
}

void BrowserView::UpdateFullscreenExitBubbleContent(
    const GURL& url,
    FullscreenExitBubbleType bubble_type) {
  // Immersive mode has no exit bubble because it has a visible strip at the
  // top that gives the user a hover target.
  // TODO(jamescook): Figure out what to do with mouse-lock.
  if (bubble_type == FEB_TYPE_NONE || ShouldUseImmersiveFullscreenForUrl(url)) {
    fullscreen_bubble_.reset();
  } else if (fullscreen_bubble_.get()) {
    fullscreen_bubble_->UpdateContent(url, bubble_type);
  } else {
    fullscreen_bubble_.reset(new FullscreenExitBubbleViews(
        this, url, bubble_type));
  }
}

bool BrowserView::ShouldHideUIForFullscreen() const {
  // Immersive mode needs UI for the slide-down top panel.
  if (immersive_mode_controller_->IsEnabled())
    return false;

  return IsFullscreen();
}

bool BrowserView::IsFullscreen() const {
  return frame_->IsFullscreen();
}

bool BrowserView::IsFullscreenBubbleVisible() const {
  return fullscreen_bubble_ != NULL;
}

#if defined(OS_WIN)
void BrowserView::SetMetroSnapMode(bool enable) {
  LOCAL_HISTOGRAM_COUNTS("Metro.SnapModeToggle", enable);
  ProcessFullscreen(enable, METRO_SNAP_FULLSCREEN, GURL(), FEB_TYPE_NONE);
}

bool BrowserView::IsInMetroSnapMode() const {
  return false;
}
#endif  // defined(OS_WIN)

void BrowserView::RestoreFocus() {
  WebContents* selected_web_contents = GetActiveWebContents();
  if (selected_web_contents)
    selected_web_contents->RestoreFocus();
}

void BrowserView::FullscreenStateChanged() {
  CHECK(!IsFullscreen());
  ProcessFullscreen(false, NORMAL_FULLSCREEN, GURL(), FEB_TYPE_NONE);
}

void BrowserView::ToolbarSizeChanged(bool is_animating) {
  // The call to InfoBarContainer::SetMaxTopArrowHeight() below can result in
  // reentrancy; |call_state| tracks whether we're reentrant.  We can't just
  // early-return in this case because we need to layout again so the infobar
  // container's bounds are set correctly.
  static CallState call_state = NORMAL;

  // A reentrant call can (and should) use the fast resize path unless both it
  // and the normal call are both non-animating.
  bool use_fast_resize =
      is_animating || (call_state == REENTRANT_FORCE_FAST_RESIZE);
  if (use_fast_resize)
    contents_web_view_->SetFastResize(true);
  UpdateUIForContents(GetActiveWebContents());
  if (use_fast_resize)
    contents_web_view_->SetFastResize(false);

  // Inform the InfoBarContainer that the distance to the location icon may have
  // changed.  We have to do this after the block above so that the toolbars are
  // laid out correctly for calculating the maximum arrow height below.
  {
    base::AutoReset<CallState> resetter(&call_state,
        is_animating ? REENTRANT_FORCE_FAST_RESIZE : REENTRANT);
    infobar_container_->SetMaxTopArrowHeight(GetMaxTopInfoBarArrowHeight());
  }

  // When transitioning from animating to not animating we need to make sure the
  // contents_container_ gets layed out. If we don't do this and the bounds
  // haven't changed contents_container_ won't get a Layout out and we'll end up
  // with a gray rect because the clip wasn't updated.  Note that a reentrant
  // call never needs to do this, because after it returns, the normal call
  // wrapping it will do it.