// Copyright (c) 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/opaque_browser_frame_view.h"

#include "build/build_config.h"
#include "build/buildflag.h"
#include "chrome/browser/themes/theme_properties.h"
#include "chrome/browser/themes/theme_service.h"
#include "chrome/browser/themes/theme_service_factory.h"
#include "chrome/browser/ui/layout_constants.h"
#include "chrome/browser/ui/views/frame/browser_frame.h"
#include "chrome/browser/ui/views/frame/browser_view.h"
#include "chrome/browser/ui/views/frame/opaque_browser_frame_view_layout.h"
#include "chrome/browser/ui/views/frame/opaque_browser_frame_view_platform_specific.h"
#include "chrome/browser/ui/views/profiles/profile_indicator_icon.h"
#include "chrome/browser/ui/views/tab_icon_view.h"
#include "chrome/browser/ui/views/tabs/new_tab_button.h"
#include "chrome/browser/ui/views/tabs/tab_strip.h"
#include "chrome/browser/ui/views/toolbar/toolbar_view.h"
#include "chrome/grit/generated_resources.h"
#include "chrome/grit/theme_resources.h"
#include "components/strings/grit/components_strings.h"
#include "content/public/browser/web_contents.h"
#include "ui/accessibility/ax_node_data.h"
#include "ui/base/hit_test.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/material_design/material_design_controller.h"
#include "ui/base/theme_provider.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/font_list.h"
#include "ui/gfx/geometry/rect_conversions.h"
#include "ui/gfx/image/image.h"
#include "ui/gfx/image/image_skia.h"
#include "ui/gfx/path.h"
#include "ui/views/controls/button/image_button.h"
#include "ui/views/controls/label.h"
#include "ui/views/resources/grit/views_resources.h"
#include "ui/views/views_delegate.h"
#include "ui/views/window/frame_background.h"
#include "ui/views/window/window_shape.h"

#if defined(OS_LINUX)
#include "ui/views/controls/menu/menu_runner.h"
#endif

#if defined(OS_WIN)
#include "ui/display/win/screen_win.h"
#endif

using content::WebContents;

///////////////////////////////////////////////////////////////////////////////
// OpaqueBrowserFrameView, public:

OpaqueBrowserFrameView::OpaqueBrowserFrameView(
    BrowserFrame* frame,
    BrowserView* browser_view,
    OpaqueBrowserFrameViewLayout* layout)
    : BrowserNonClientFrameView(frame, browser_view),
      layout_(layout),
      minimize_button_(nullptr),
      maximize_button_(nullptr),
      restore_button_(nullptr),
      close_button_(nullptr),
      window_icon_(nullptr),
      window_title_(nullptr),
      frame_background_(new views::FrameBackground()) {
  layout_->set_delegate(this);
  SetLayoutManager(std::unique_ptr<views::LayoutManager>(layout_));

  minimize_button_ = InitWindowCaptionButton(IDR_MINIMIZE,
                                             IDR_MINIMIZE_H,
                                             IDR_MINIMIZE_P,
                                             IDR_MINIMIZE_BUTTON_MASK,
                                             IDS_ACCNAME_MINIMIZE,
                                             VIEW_ID_MINIMIZE_BUTTON);
  maximize_button_ = InitWindowCaptionButton(IDR_MAXIMIZE,
                                             IDR_MAXIMIZE_H,
                                             IDR_MAXIMIZE_P,
                                             IDR_MAXIMIZE_BUTTON_MASK,
                                             IDS_ACCNAME_MAXIMIZE,
                                             VIEW_ID_MAXIMIZE_BUTTON);
  restore_button_ = InitWindowCaptionButton(IDR_RESTORE,
                                            IDR_RESTORE_H,
                                            IDR_RESTORE_P,
                                            IDR_RESTORE_BUTTON_MASK,
                                            IDS_ACCNAME_RESTORE,
                                            VIEW_ID_RESTORE_BUTTON);
  close_button_ = InitWindowCaptionButton(IDR_CLOSE,
                                          IDR_CLOSE_H,
                                          IDR_CLOSE_P,
                                          IDR_CLOSE_BUTTON_MASK,
                                          IDS_ACCNAME_CLOSE,
                                          VIEW_ID_CLOSE_BUTTON);

  // Initializing the TabIconView is expensive, so only do it if we need to.
  if (browser_view->ShouldShowWindowIcon()) {
    window_icon_ = new TabIconView(this, this);
    window_icon_->set_is_light(true);
    window_icon_->set_id(VIEW_ID_WINDOW_ICON);
    AddChildView(window_icon_);
    window_icon_->Update();
  }

  window_title_ = new views::Label(browser_view->GetWindowTitle());
  window_title_->SetVisible(browser_view->ShouldShowWindowTitle());
  window_title_->SetEnabledColor(SK_ColorWHITE);
  window_title_->SetSubpixelRenderingEnabled(false);
  window_title_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
  window_title_->set_id(VIEW_ID_WINDOW_TITLE);
  AddChildView(window_title_);

  platform_observer_.reset(OpaqueBrowserFrameViewPlatformSpecific::Create(
      this, layout_,
      ThemeServiceFactory::GetForProfile(browser_view->browser()->profile())));
}

OpaqueBrowserFrameView::~OpaqueBrowserFrameView() {}

///////////////////////////////////////////////////////////////////////////////
// OpaqueBrowserFrameView, BrowserNonClientFrameView implementation:

void OpaqueBrowserFrameView::OnBrowserViewInitViewsComplete() {
  BrowserNonClientFrameView::OnBrowserViewInitViewsComplete();

  // After views are initialized, we know the top area height for the
  // first time, so redraw the frame buttons at the appropriate size.
  MaybeRedrawFrameButtons();
}

void OpaqueBrowserFrameView::OnMaximizedStateChanged() {
  BrowserNonClientFrameView::OnMaximizedStateChanged();

  // The top area height can change depending on the maximized state.
  MaybeRedrawFrameButtons();
}

void OpaqueBrowserFrameView::OnFullscreenStateChanged() {
  BrowserNonClientFrameView::OnFullscreenStateChanged();

  // The top area height is 0 when the window is fullscreened.
  MaybeRedrawFrameButtons();
}

gfx::Rect OpaqueBrowserFrameView::GetBoundsForTabStrip(
    views::View* tabstrip) const {
  if (!tabstrip)
    return gfx::Rect();

  return layout_->GetBoundsForTabStrip(tabstrip->GetPreferredSize(), width());
}

int OpaqueBrowserFrameView::GetTopInset(bool restored) const {
  return browser_view()->IsTabStripVisible()
             ? layout_->GetTabStripInsetsTop(restored)
             : layout_->NonClientTopHeight(restored);
}

int OpaqueBrowserFrameView::GetThemeBackgroundXInset() const {
  return 0;
}

void OpaqueBrowserFrameView::UpdateThrobber(bool running) {
  if (window_icon_)
    window_icon_->Update();
}

gfx::Size OpaqueBrowserFrameView::GetMinimumSize() const {
  return layout_->GetMinimumSize(width());
}

int OpaqueBrowserFrameView::GetTabStripLeftInset() const {
  return layout_->GetTabStripLeftInset();
}

///////////////////////////////////////////////////////////////////////////////
// OpaqueBrowserFrameView, views::NonClientFrameView implementation:

gfx::Rect OpaqueBrowserFrameView::GetBoundsForClientView() const {
  return layout_->client_view_bounds();
}

gfx::Rect OpaqueBrowserFrameView::GetWindowBoundsForClientBounds(
    const gfx::Rect& client_bounds) const {
  return layout_->GetWindowBoundsForClientBounds(client_bounds);
}

bool OpaqueBrowserFrameView::IsWithinAvatarMenuButtons(
    const gfx::Point& point) const {
  if (profile_indicator_icon() &&
      profile_indicator_icon()->GetMirroredBounds().Contains(point)) {
    return true;
  }
  views::View* profile_switcher_view = GetProfileSwitcherButton();
  if (profile_switcher_view &&
      profile_switcher_view->GetMirroredBounds().Contains(point)) {
    return true;
  }

  return false;
}

int OpaqueBrowserFrameView::NonClientHitTest(const gfx::Point& point) {
  if (!bounds().Contains(point))
    return HTNOWHERE;

  // See if the point is within the avatar menu button.
  if (IsWithinAvatarMenuButtons(point))
    return HTCLIENT;

  int frame_component = frame()->client_view()->NonClientHitTest(point);

  // See if we're in the sysmenu region.  We still have to check the tabstrip
  // first so that clicks in a tab don't get treated as sysmenu clicks.
  using MD = ui::MaterialDesignController;
  if ((!MD::IsRefreshUi() || ShouldShowWindowIcon()) &&
      frame_component != HTCLIENT) {
    gfx::Rect sysmenu_rect(IconBounds());
    // In maximized mode we extend the rect to the screen corner to take
    // advantage of Fitts' Law.
    if (layout_->IsTitleBarCondensed())
      sysmenu_rect.SetRect(0, 0, sysmenu_rect.right(), sysmenu_rect.bottom());
    sysmenu_rect = GetMirroredRect(sysmenu_rect);
    if (sysmenu_rect.Contains(point))
      return HTSYSMENU;
  }

  if (frame_component != HTNOWHERE)
    return frame_component;

  // Then see if the point is within any of the window controls.
  if (close_button_ && close_button_->visible() &&
      close_button_->GetMirroredBounds().Contains(point))
    return HTCLOSE;
  if (restore_button_ && restore_button_->visible() &&
      restore_button_->GetMirroredBounds().Contains(point))
    return HTMAXBUTTON;
  if (maximize_button_ && maximize_button_->visible() &&
      maximize_button_->GetMirroredBounds().Contains(point))
    return HTMAXBUTTON;
  if (minimize_button_ && minimize_button_->visible() &&
      minimize_button_->GetMirroredBounds().Contains(point))
    return HTMINBUTTON;

  views::WidgetDelegate* delegate = frame()->widget_delegate();
  if (!delegate) {
    LOG(WARNING) << "delegate is null, returning safe default.";
    return HTCAPTION;
  }

  // In the window corners, the resize areas don't actually expand bigger, but
  // the 16 px at the end of each edge triggers diagonal resizing.
  constexpr int kResizeAreaCornerSize = 16;
  int window_component = GetHTComponentForFrame(
      point, FrameTopBorderThickness(false), NonClientBorderThickness(),
      kResizeAreaCornerSize, kResizeAreaCornerSize, delegate->CanResize());
  // Fall back to the caption if no other component matches.
  return (window_component == HTNOWHERE) ? HTCAPTION : window_component;
}

void OpaqueBrowserFrameView::GetWindowMask(const gfx::Size& size,
                                           gfx::Path* window_mask) {
  DCHECK(window_mask);

  if (layout_->IsTitleBarCondensed() || frame()->IsFullscreen())
    return;

  views::GetDefaultWindowMask(
      size, frame()->GetCompositor()->device_scale_factor(), window_mask);
}

void OpaqueBrowserFrameView::ResetWindowControls() {
  restore_button_->SetState(views::Button::STATE_NORMAL);
  minimize_button_->SetState(views::Button::STATE_NORMAL);
  maximize_button_->SetState(views::Button::STATE_NORMAL);
  // The close button isn't affected by this constraint.
}

void OpaqueBrowserFrameView::UpdateWindowIcon() {
  if (window_icon_)
    window_icon_->SchedulePaint();
}

void OpaqueBrowserFrameView::UpdateWindowTitle() {
  if (!frame()->IsFullscreen() && ShouldShowWindowTitle()) {
    Layout();
    window_title_->SchedulePaint();
  }
}

void OpaqueBrowserFrameView::SizeConstraintsChanged() {}

void OpaqueBrowserFrameView::ActivationChanged(bool active) {
  BrowserNonClientFrameView::ActivationChanged(active);
  MaybeRedrawFrameButtons();
}

///////////////////////////////////////////////////////////////////////////////
// OpaqueBrowserFrameView, views::View overrides:

void OpaqueBrowserFrameView::GetAccessibleNodeData(ui::AXNodeData* node_data) {
  node_data->role = ax::mojom::Role::kTitleBar;
}

void OpaqueBrowserFrameView::OnNativeThemeChanged(
    const ui::NativeTheme* native_theme) {
  MaybeRedrawFrameButtons();
}

///////////////////////////////////////////////////////////////////////////////
// OpaqueBrowserFrameView, views::ButtonListener implementation:

void OpaqueBrowserFrameView::ButtonPressed(views::Button* sender,
                                           const ui::Event& event) {
  if (sender == minimize_button_) {
    frame()->Minimize();
  } else if (sender == maximize_button_) {
    frame()->Maximize();
  } else if (sender == restore_button_) {
    frame()->Restore();
  } else if (sender == close_button_) {
    frame()->Close();
  }
}

void OpaqueBrowserFrameView::OnMenuButtonClicked(views::MenuButton* source,
                                                 const gfx::Point& point,
                                                 const ui::Event* event) {
#if defined(OS_LINUX)
  views::MenuRunner menu_runner(frame()->GetSystemMenuModel(),
                                views::MenuRunner::HAS_MNEMONICS);
  menu_runner.RunMenuAt(browser_view()->GetWidget(), window_icon_,
                        window_icon_->GetBoundsInScreen(),
                        views::MENU_ANCHOR_TOPLEFT, ui::MENU_SOURCE_MOUSE);
#endif
}

///////////////////////////////////////////////////////////////////////////////
// OpaqueBrowserFrameView, TabIconView::TabContentsProvider implementation:

bool OpaqueBrowserFrameView::ShouldTabIconViewAnimate() const {
  // This function is queried during the creation of the window as the
  // TabIconView we host is initialized, so we need to null check the selected
  // WebContents because in this condition there is not yet a selected tab.
  WebContents* current_tab = browser_view()->GetActiveWebContents();
  return current_tab ? current_tab->IsLoading() : false;
}

gfx::ImageSkia OpaqueBrowserFrameView::GetFaviconForTabIconView() {
  views::WidgetDelegate* delegate = frame()->widget_delegate();
  if (!delegate) {
    LOG(WARNING) << "delegate is null, returning safe default.";
    return gfx::ImageSkia();
  }
  return delegate->GetWindowIcon();
}

///////////////////////////////////////////////////////////////////////////////
// OpaqueBrowserFrameView, OpaqueBrowserFrameViewLayoutDelegate implementation:

bool OpaqueBrowserFrameView::ShouldShowWindowIcon() const {
  views::WidgetDelegate* delegate = frame()->widget_delegate();
  return ShouldShowWindowTitleBar() && delegate &&
         delegate->ShouldShowWindowIcon();
}

bool OpaqueBrowserFrameView::ShouldShowWindowTitle() const {
  // |delegate| may be null if called from callback of InputMethodChanged while
  // a window is being destroyed.
  // See more discussion at http://crosbug.com/8958
  views::WidgetDelegate* delegate = frame()->widget_delegate();
  return ShouldShowWindowTitleBar() && delegate &&
         delegate->ShouldShowWindowTitle();
}

base::string16 OpaqueBrowserFrameView::GetWindowTitle() const {
  return frame()->widget_delegate()->GetWindowTitle();
}

int OpaqueBrowserFrameView::GetIconSize() const {
#if defined(OS_WIN)
  // This metric scales up if either the titlebar height or the titlebar font
  // size are increased.
  return display::win::ScreenWin::GetSystemMetricsInDIP(SM_CYSMICON);
#else
  // The icon never shrinks below 16 px on a side.
  const int kIconMinimumSize = 16;
  return std::max(gfx::FontList().GetHeight(), kIconMinimumSize);
#endif
}

gfx::Size OpaqueBrowserFrameView::GetBrowserViewMinimumSize() const {
  return browser_view()->GetMinimumSize();
}

bool OpaqueBrowserFrameView::ShouldShowCaptionButtons() const {
  return ShouldShowWindowTitleBar();
}

bool OpaqueBrowserFrameView::IsRegularOrGuestSession() const {
  return browser_view()->IsRegularOrGuestSession();
}

gfx::ImageSkia OpaqueBrowserFrameView::GetIncognitoAvatarIcon() const {
  return BrowserNonClientFrameView::GetIncognitoAvatarIcon();
}

bool OpaqueBrowserFrameView::IsMaximized() const {
  return frame()->IsMaximized();
}

bool OpaqueBrowserFrameView::IsMinimized() const {
  return frame()->IsMinimized();
}

bool OpaqueBrowserFrameView::IsFullscreen() const {
  return frame()->IsFullscreen();
}

bool OpaqueBrowserFrameView::IsTabStripVisible() const {
  return browser_view()->IsTabStripVisible();
}

bool OpaqueBrowserFrameView::HasClientEdge() const {
  return layout_->HasClientEdge();
}

bool OpaqueBrowserFrameView::IsToolbarVisible() const {
  return browser_view()->IsToolbarVisible() &&
      !browser_view()->toolbar()->GetPreferredSize().IsEmpty();
}

int OpaqueBrowserFrameView::GetTabStripHeight() const {
  return browser_view()->GetTabStripHeight();
}

gfx::Size OpaqueBrowserFrameView::GetTabstripPreferredSize() const {
  return browser_view()->tabstrip()->GetPreferredSize();
}

gfx::Size OpaqueBrowserFrameView::GetNewTabButtonPreferredSize() const {
  return browser_view()->tabstrip()->new_tab_button()->GetPreferredSize();
}

int OpaqueBrowserFrameView::GetTopAreaHeight() const {
  const gfx::ImageSkia frame_image = GetFrameImage();
  int top_area_height =
      std::max(frame_image.height(), layout_->NonClientTopHeight(false));
  if (browser_view()->IsTabStripVisible()) {
    top_area_height =
        std::max(top_area_height,
                 GetBoundsForTabStrip(browser_view()->tabstrip()).bottom() -
                     GetLayoutConstant(TABSTRIP_TOOLBAR_OVERLAP));
  }
  return top_area_height;
}

bool OpaqueBrowserFrameView::UseCustomFrame() const {
  return frame()->UseCustomFrame();
}

///////////////////////////////////////////////////////////////////////////////
// OpaqueBrowserFrameView, protected:

// views::View:
void OpaqueBrowserFrameView::OnPaint(gfx::Canvas* canvas) {
  TRACE_EVENT0("views.frame", "OpaqueBrowserFrameView::OnPaint");
  if (frame()->IsFullscreen())
    return;  // Nothing is visible, so don't bother to paint.

  frame_background_->set_frame_color(GetFrameColor());
  frame_background_->set_use_custom_frame(frame()->UseCustomFrame());
  frame_background_->set_is_active(ShouldPaintAsActive());
  frame_background_->set_incognito(browser_view()->IsIncognito());
  frame_background_->set_theme_image(GetFrameImage());
  frame_background_->set_theme_overlay_image(GetFrameOverlayImage());
  frame_background_->set_top_area_height(GetTopAreaHeight());

  if (layout_->IsTitleBarCondensed())
    PaintMaximizedFrameBorder(canvas);
  else
    PaintRestoredFrameBorder(canvas);

  // The window icon and title are painted by their respective views.
  /* TODO(pkasting):  If this window is active, we should also draw a drop
   * shadow on the title.  This is tricky, because we don't want to hardcode a
   * shadow color (since we want to work with various themes), but we can't
   * alpha-blend either (since the Windows text APIs don't really do this).
   * So we'd need to sample the background color at the right location and
   * synthesize a good shadow color. */

  if (IsToolbarVisible() && IsTabStripVisible())
    PaintToolbarTopStroke(canvas);
  PaintClientEdge(canvas);
}

// BrowserNonClientFrameView:
bool OpaqueBrowserFrameView::ShouldPaintAsThemed() const {
  // Theme app and popup windows if |platform_observer_| wants it.
  return browser_view()->IsBrowserTypeNormal() ||
         platform_observer_->IsUsingSystemTheme();
}

AvatarButtonStyle OpaqueBrowserFrameView::GetAvatarButtonStyle() const {
  return AvatarButtonStyle::THEMED;
}

void OpaqueBrowserFrameView::MaybeRedrawFrameButtons() {}

///////////////////////////////////////////////////////////////////////////////
// OpaqueBrowserFrameView, private:

views::ImageButton* OpaqueBrowserFrameView::InitWindowCaptionButton(
    int normal_image_id,
    int hot_image_id,
    int pushed_image_id,
    int mask_image_id,
    int accessibility_string_id,
    ViewID view_id) {
  views::ImageButton* button = new views::ImageButton(this);
  const ui::ThemeProvider* tp = frame()->GetThemeProvider();
  button->SetImage(views::Button::STATE_NORMAL,
                   tp->GetImageSkiaNamed(normal_image_id));
  button->SetImage(views::Button::STATE_HOVERED,
                   tp->GetImageSkiaNamed(hot_image_id));
  button->SetImage(views::Button::STATE_PRESSED,
                   tp->GetImageSkiaNamed(pushed_image_id));
  if (browser_view()->IsBrowserTypeNormal()) {
    button->SetBackgroundImage(
        tp->GetColor(ThemeProperties::COLOR_BUTTON_BACKGROUND),
        tp->GetImageSkiaNamed(IDR_THEME_WINDOW_CONTROL_BACKGROUND),
        tp->GetImageSkiaNamed(mask_image_id));
  }
  button->SetAccessibleName(
      l10n_util::GetStringUTF16(accessibility_string_id));
  button->set_id(view_id);
  AddChildView(button);
  return button;
}

int OpaqueBrowserFrameView::FrameBorderThickness(bool restored) const {
  return layout_->FrameBorderThickness(restored);
}

int OpaqueBrowserFrameView::FrameTopBorderThickness(bool restored) const {
  return layout_->FrameTopBorderThickness(restored);
}

int OpaqueBrowserFrameView::NonClientBorderThickness() const {
  return layout_->NonClientBorderThickness();
}

gfx::Rect OpaqueBrowserFrameView::IconBounds() const {
  return layout_->IconBounds();
}

bool OpaqueBrowserFrameView::ShouldShowWindowTitleBar() const {
  // Do not show the custom title bar if the system title bar option is enabled.
  if (!frame()->UseCustomFrame())
    return false;

  // Do not show caption buttons if the window manager is forcefully providing a
  // title bar (e.g., in Ubuntu Unity, if the window is maximized).
  if (!views::ViewsDelegate::GetInstance())
    return true;
  return !views::ViewsDelegate::GetInstance()->WindowManagerProvidesTitleBar(
      IsMaximized());
}

void OpaqueBrowserFrameView::PaintRestoredFrameBorder(
    gfx::Canvas* canvas) const {
  const ui::ThemeProvider* tp = GetThemeProvider();
  frame_background_->SetSideImages(
      tp->GetImageSkiaNamed(IDR_WINDOW_LEFT_SIDE),
      tp->GetImageSkiaNamed(IDR_WINDOW_TOP_CENTER),
      tp->GetImageSkiaNamed(IDR_WINDOW_RIGHT_SIDE),
      tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_CENTER));
  frame_background_->SetCornerImages(
      tp->GetImageSkiaNamed(IDR_WINDOW_TOP_LEFT_CORNER),
      tp->GetImageSkiaNamed(IDR_WINDOW_TOP_RIGHT_CORNER),
      tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_LEFT_CORNER),
      tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_RIGHT_CORNER));
  frame_background_->PaintRestored(canvas, this);

  // Note: When we don't have a toolbar, we need to draw some kind of bottom
  // edge here.  Because the App Window graphics we use for this have an
  // attached client edge and their sizing algorithm is a little involved, we do
  // all this in PaintRestoredClientEdge().
}

void OpaqueBrowserFrameView::PaintMaximizedFrameBorder(
    gfx::Canvas* canvas) const {
  frame_background_->set_maximized_top_inset(
      GetTopInset(true) - GetTopInset(false));
  frame_background_->PaintMaximized(canvas, this);
}

void OpaqueBrowserFrameView::PaintClientEdge(gfx::Canvas* canvas) const {
  const bool tabstrip_visible = browser_view()->IsTabStripVisible();
  gfx::Rect client_bounds =
      layout_->CalculateClientAreaBounds(width(), height());
  const int x = client_bounds.x();
  int y = client_bounds.y();
  const int w = client_bounds.width();
  // If the toolbar isn't going to draw a top edge for us, draw one ourselves.
  if (!tabstrip_visible) {
    const int edge_thickness =
        browser_view()->HasClientEdge() ? kClientEdgeThickness : 0;
    client_bounds.Inset(-edge_thickness, -1, -edge_thickness,
                        client_bounds.height());
    BrowserView::Paint1pxHorizontalLine(canvas, GetToolbarTopSeparatorColor(),
                                        client_bounds, true);
  }

  // In maximized mode, the only edge to draw is the top one, so we're done.
  if (layout_->IsTitleBarCondensed())
    return;

  const ui::ThemeProvider* tp = GetThemeProvider();
  const gfx::Rect toolbar_bounds(browser_view()->GetToolbarBounds());
  const bool incognito = browser_view()->IsIncognito();
  SkColor toolbar_color;
  if (tabstrip_visible) {
    toolbar_color = tp->GetColor(ThemeProperties::COLOR_TOOLBAR);

    // The client edge images start at the top of the toolbar.
    y += toolbar_bounds.y();
  } else {
    // Note that windows without tabstrips are never themed, so we always use
    // the default colors in this section.
    toolbar_color = ThemeProperties::GetDefaultColor(
        ThemeProperties::COLOR_TOOLBAR, incognito);
  }

  if (browser_view()->HasClientEdge()) {
    // Draw the client edges.
    const gfx::ImageSkia* const right_image =
        tp->GetImageSkiaNamed(IDR_CONTENT_RIGHT_SIDE);
    const int img_w = right_image->width();
    const int right = client_bounds.right();
    const int bottom = std::max(y, height() - NonClientBorderThickness());
    const int height = bottom - y;
    canvas->TileImageInt(*right_image, right, y, img_w, height);
    canvas->DrawImageInt(
        *tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_RIGHT_CORNER), right, bottom);
    const gfx::ImageSkia* const bottom_image =
        tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_CENTER);
    canvas->TileImageInt(*bottom_image, x, bottom, w, bottom_image->height());
    canvas->DrawImageInt(*tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_LEFT_CORNER),
                         x - img_w, bottom);
    canvas->TileImageInt(*tp->GetImageSkiaNamed(IDR_CONTENT_LEFT_SIDE),
                         x - img_w, y, img_w, height);
    FillClientEdgeRects(x, y, w, height, true, toolbar_color, canvas);
  }

  // For popup windows, draw location bar sides.
  SkColor location_bar_border_color =
      browser_view()->toolbar()->location_bar()->GetOpaqueBorderColor(
          incognito);
  if (!tabstrip_visible && IsToolbarVisible()) {
    FillClientEdgeRects(x, y, w, toolbar_bounds.height(), false,
                        location_bar_border_color, canvas);
  }
}

void OpaqueBrowserFrameView::FillClientEdgeRects(int x,
                                                 int y,
                                                 int w,
                                                 int h,
                                                 bool draw_bottom,
                                                 SkColor color,
                                                 gfx::Canvas* canvas) const {
  x -= kClientEdgeThickness;
  gfx::Rect side(x, y, kClientEdgeThickness, h);
  canvas->FillRect(side, color);
  if (draw_bottom) {
    canvas->FillRect(gfx::Rect(x, y + h, w + (2 * kClientEdgeThickness),
                               kClientEdgeThickness),
                     color);
  }
  side.Offset(w + kClientEdgeThickness, 0);
  canvas->FillRect(side, color);
}