path: root/chrome/browser/views/frame/opaque_browser_frame_view.cc

// Copyright (c) 2010 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/views/frame/opaque_browser_frame_view.h"

#include "app/l10n_util.h"
#include "app/resource_bundle.h"
#include "app/theme_provider.h"
#include "base/compiler_specific.h"
#include "chrome/browser/tab_contents/tab_contents.h"
#include "chrome/browser/themes/browser_theme_provider.h"
#include "chrome/browser/views/frame/browser_frame.h"
#include "chrome/browser/views/frame/browser_view.h"
#include "chrome/browser/views/tabs/tab_strip.h"
#include "chrome/browser/views/toolbar_view.h"
#include "gfx/canvas_skia.h"
#include "gfx/font.h"
#include "gfx/path.h"
#include "grit/app_resources.h"
#include "grit/chromium_strings.h"
#include "grit/generated_resources.h"
#include "grit/theme_resources.h"
#include "views/controls/button/image_button.h"
#include "views/controls/image_view.h"
#include "views/widget/root_view.h"
#include "views/window/window.h"
#include "views/window/window_resources.h"
#include "views/window/window_shape.h"

#if defined(OS_LINUX)
#include "views/window/hit_test.h"
#endif

namespace {
// The frame border is only visible in restored mode and is hardcoded to 4 px on
// each side regardless of the system window border size.
const int kFrameBorderThickness = 4;
// Besides the frame border, there's another 11 px of empty space atop the
// window in restored mode, to use to drag the window around.
const int kNonClientRestoredExtraThickness = 11;
// While resize areas on Windows are normally the same size as the window
// borders, our top area is shrunk by 1 px to make it easier to move the window
// around with our thinner top grabbable strip.  (Incidentally, our side and
// bottom resize areas don't match the frame border thickness either -- they
// span the whole nonclient area, so there's no "dead zone" for the mouse.)
const int kTopResizeAdjust = 1;
// 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.
const int kResizeAreaCornerSize = 16;
// The titlebar never shrinks too short to show the caption button plus some
// padding below it.
const int kCaptionButtonHeightWithPadding = 19;
// The content left/right images have a shadow built into them.
const int kContentEdgeShadowThickness = 2;
// The titlebar has a 2 px 3D edge along the top and bottom.
const int kTitlebarTopAndBottomEdgeThickness = 2;
// The icon is inset 2 px from the left frame border.
const int kIconLeftSpacing = 2;
// The icon never shrinks below 16 px on a side.
const int kIconMinimumSize = 16;
// There is a 4 px gap between the icon and the title text.
const int kIconTitleSpacing = 4;
// There is a 5 px gap between the title text and the caption buttons.
const int kTitleLogoSpacing = 5;
// The OTR avatar ends 2 px above the bottom of the tabstrip (which, given the
// way the tabstrip draws its bottom edge, will appear like a 1 px gap to the
// user).
const int kOTRBottomSpacing = 2;
// There are 2 px on each side of the OTR avatar (between the frame border and
// it on the left, and between it and the tabstrip on the right).
const int kOTRSideSpacing = 2;
// The top 1 px of the tabstrip is shadow; in maximized mode we push this off
// the top of the screen so the tabs appear flush against the screen edge.
const int kTabstripTopShadowThickness = 1;
// In restored mode, the New Tab button isn't at the same height as the caption
// buttons, but the space will look cluttered if it actually slides under them,
// so we stop it when the gap between the two is down to 5 px.
const int kNewTabCaptionRestoredSpacing = 5;
// In maximized mode, where the New Tab button and the caption buttons are at
// similar vertical coordinates, we need to reserve a larger, 16 px gap to avoid
// looking too cluttered.
const int kNewTabCaptionMaximizedSpacing = 16;
// How far to indent the tabstrip from the left side of the screen when there
// is no OTR icon.
const int kTabStripIndent = 1;
// Inset from the top of the toolbar/tabstrip to the shadow. Used only for
// vertical tabs.
const int kVerticalTabBorderInset = 3;
}

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

OpaqueBrowserFrameView::OpaqueBrowserFrameView(BrowserFrame* frame,
                                               BrowserView* browser_view)
    : BrowserNonClientFrameView(),
      ALLOW_THIS_IN_INITIALIZER_LIST(
          minimize_button_(new views::ImageButton(this))),
      ALLOW_THIS_IN_INITIALIZER_LIST(
          maximize_button_(new views::ImageButton(this))),
      ALLOW_THIS_IN_INITIALIZER_LIST(
          restore_button_(new views::ImageButton(this))),
      ALLOW_THIS_IN_INITIALIZER_LIST(
          close_button_(new views::ImageButton(this))),
      window_icon_(NULL),
      frame_(frame),
      browser_view_(browser_view) {
  ThemeProvider* tp = frame_->GetThemeProviderForFrame();
  SkColor color = tp->GetColor(BrowserThemeProvider::COLOR_BUTTON_BACKGROUND);
  SkBitmap* background =
      tp->GetBitmapNamed(IDR_THEME_WINDOW_CONTROL_BACKGROUND);
  minimize_button_->SetImage(views::CustomButton::BS_NORMAL,
                             tp->GetBitmapNamed(IDR_MINIMIZE));
  minimize_button_->SetImage(views::CustomButton::BS_HOT,
                             tp->GetBitmapNamed(IDR_MINIMIZE_H));
  minimize_button_->SetImage(views::CustomButton::BS_PUSHED,
                             tp->GetBitmapNamed(IDR_MINIMIZE_P));
  if (browser_view_->IsBrowserTypeNormal()) {
    minimize_button_->SetBackground(color, background,
        tp->GetBitmapNamed(IDR_MINIMIZE_BUTTON_MASK));
  }
  minimize_button_->SetAccessibleName(
      l10n_util::GetString(IDS_ACCNAME_MINIMIZE));
  AddChildView(minimize_button_);

  maximize_button_->SetImage(views::CustomButton::BS_NORMAL,
                             tp->GetBitmapNamed(IDR_MAXIMIZE));
  maximize_button_->SetImage(views::CustomButton::BS_HOT,
                             tp->GetBitmapNamed(IDR_MAXIMIZE_H));
  maximize_button_->SetImage(views::CustomButton::BS_PUSHED,
                             tp->GetBitmapNamed(IDR_MAXIMIZE_P));
  if (browser_view_->IsBrowserTypeNormal()) {
    maximize_button_->SetBackground(color, background,
        tp->GetBitmapNamed(IDR_MAXIMIZE_BUTTON_MASK));
  }
  maximize_button_->SetAccessibleName(
      l10n_util::GetString(IDS_ACCNAME_MAXIMIZE));
  AddChildView(maximize_button_);

  restore_button_->SetImage(views::CustomButton::BS_NORMAL,
                            tp->GetBitmapNamed(IDR_RESTORE));
  restore_button_->SetImage(views::CustomButton::BS_HOT,
                            tp->GetBitmapNamed(IDR_RESTORE_H));
  restore_button_->SetImage(views::CustomButton::BS_PUSHED,
                            tp->GetBitmapNamed(IDR_RESTORE_P));
  if (browser_view_->IsBrowserTypeNormal()) {
    restore_button_->SetBackground(color, background,
        tp->GetBitmapNamed(IDR_RESTORE_BUTTON_MASK));
  }
  restore_button_->SetAccessibleName(l10n_util::GetString(IDS_ACCNAME_RESTORE));
  AddChildView(restore_button_);

  close_button_->SetImage(views::CustomButton::BS_NORMAL,
                          tp->GetBitmapNamed(IDR_CLOSE));
  close_button_->SetImage(views::CustomButton::BS_HOT,
                          tp->GetBitmapNamed(IDR_CLOSE_H));
  close_button_->SetImage(views::CustomButton::BS_PUSHED,
                          tp->GetBitmapNamed(IDR_CLOSE_P));
  if (browser_view_->IsBrowserTypeNormal()) {
    close_button_->SetBackground(color, background,
        tp->GetBitmapNamed(IDR_CLOSE_BUTTON_MASK));
  }
  close_button_->SetAccessibleName(l10n_util::GetString(IDS_ACCNAME_CLOSE));
  AddChildView(close_button_);

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

OpaqueBrowserFrameView::~OpaqueBrowserFrameView() {
}

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

gfx::Rect OpaqueBrowserFrameView::GetBoundsForTabStrip(
    BaseTabStrip* tabstrip) const {
  if (browser_view_->UseVerticalTabs()) {
    gfx::Size ps = tabstrip->GetPreferredSize();
    return gfx::Rect(NonClientBorderThickness(),
        NonClientTopBorderHeight(false, false), ps.width(),
        browser_view_->height());
  }

  int tabstrip_x = browser_view_->ShouldShowOffTheRecordAvatar() ?
      (otr_avatar_bounds_.right() + kOTRSideSpacing) :
      NonClientBorderThickness() + kTabStripIndent;

  int tabstrip_width = minimize_button_->x() - tabstrip_x -
      (frame_->GetWindow()->IsMaximized() ?
      kNewTabCaptionMaximizedSpacing : kNewTabCaptionRestoredSpacing);
  return gfx::Rect(tabstrip_x, GetHorizontalTabStripVerticalOffset(false),
                   std::max(0, tabstrip_width), tabstrip->GetPreferredHeight());
}

int OpaqueBrowserFrameView::GetHorizontalTabStripVerticalOffset(
    bool restored) const {
  return NonClientTopBorderHeight(restored, true) + ((!restored &&
      (frame_->GetWindow()->IsMaximized() ||
      frame_->GetWindow()->IsFullscreen())) ?
      0 : kNonClientRestoredExtraThickness);
}

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

gfx::Size OpaqueBrowserFrameView::GetMinimumSize() {
  gfx::Size min_size(browser_view_->GetMinimumSize());
  int border_thickness = NonClientBorderThickness();
  min_size.Enlarge(2 * border_thickness,
                   NonClientTopBorderHeight(false, false) + border_thickness);

  views::WindowDelegate* d = frame_->GetWindow()->GetDelegate();
  int min_titlebar_width = (2 * FrameBorderThickness(false)) +
      kIconLeftSpacing +
      (d->ShouldShowWindowIcon() ? (IconSize() + kTitleLogoSpacing) : 0);
#if !defined(OS_CHROMEOS)
  min_titlebar_width +=
      minimize_button_->GetMinimumSize().width() +
      restore_button_->GetMinimumSize().width() +
      close_button_->GetMinimumSize().width();
#endif
  min_size.set_width(std::max(min_size.width(), min_titlebar_width));
  return min_size;
}

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

gfx::Rect OpaqueBrowserFrameView::GetBoundsForClientView() const {
  return client_view_bounds_;
}

bool OpaqueBrowserFrameView::AlwaysUseNativeFrame() const {
  return frame_->AlwaysUseNativeFrame();
}

bool OpaqueBrowserFrameView::AlwaysUseCustomFrame() const {
  return true;
}

gfx::Rect OpaqueBrowserFrameView::GetWindowBoundsForClientBounds(
    const gfx::Rect& client_bounds) const {
  int top_height = NonClientTopBorderHeight(false, false);
  int border_thickness = NonClientBorderThickness();
  return gfx::Rect(std::max(0, client_bounds.x() - border_thickness),
                   std::max(0, client_bounds.y() - top_height),
                   client_bounds.width() + (2 * border_thickness),
                   client_bounds.height() + top_height + border_thickness);
}

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

  int frame_component =
      frame_->GetWindow()->GetClientView()->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.
  gfx::Rect sysmenu_rect(IconBounds());
  // In maximized mode we extend the rect to the screen corner to take advantage
  // of Fitts' Law.
  if (frame_->GetWindow()->IsMaximized())
    sysmenu_rect.SetRect(0, 0, sysmenu_rect.right(), sysmenu_rect.bottom());
  sysmenu_rect.set_x(MirroredLeftPointForRect(sysmenu_rect));
  if (sysmenu_rect.Contains(point))
    return (frame_component == HTCLIENT) ? HTCLIENT : HTSYSMENU;

  if (frame_component != HTNOWHERE)
    return frame_component;

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

  int window_component = GetHTComponentForFrame(point, TopResizeHeight(),
      NonClientBorderThickness(), kResizeAreaCornerSize, kResizeAreaCornerSize,
      frame_->GetWindow()->GetDelegate()->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 (frame_->GetWindow()->IsMaximized() || frame_->GetWindow()->IsFullscreen())
    return;

  views::GetDefaultWindowMask(size, window_mask);
}

void OpaqueBrowserFrameView::EnableClose(bool enable) {
  close_button_->SetEnabled(enable);
}

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

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

void OpaqueBrowserFrameView::Paint(gfx::Canvas* canvas) {
  views::Window* window = frame_->GetWindow();
  if (window->IsFullscreen())
    return;  // Nothing is visible, so don't bother to paint.

  if (window->IsMaximized())
    PaintMaximizedFrameBorder(canvas);
  else
    PaintRestoredFrameBorder(canvas);
  PaintTitleBar(canvas);
  if (browser_view_->IsToolbarVisible())
    PaintToolbarBackground(canvas);
  if (browser_view_->ShouldShowOffTheRecordAvatar())
    PaintOTRAvatar(canvas);
  if (!window->IsMaximized())
    PaintRestoredClientEdge(canvas);
}

void OpaqueBrowserFrameView::Layout() {
  LayoutWindowControls();
  LayoutTitleBar();
  LayoutOTRAvatar();
  client_view_bounds_ = CalculateClientAreaBounds(width(), height());
}

bool OpaqueBrowserFrameView::HitTest(const gfx::Point& l) const {
  // If the point is outside the bounds of the client area, claim it.
  bool in_nonclient = NonClientFrameView::HitTest(l);
  if (in_nonclient)
    return in_nonclient;

  // Otherwise claim it only if it's in a non-tab portion of the tabstrip.
  bool vertical_tabs = browser_view_->UseVerticalTabs();
  gfx::Rect tabstrip_bounds = browser_view_->tabstrip()->bounds();
  gfx::Point tabstrip_origin(tabstrip_bounds.origin());
  View::ConvertPointToView(frame_->GetWindow()->GetClientView(),
                           this, &tabstrip_origin);
  tabstrip_bounds.set_origin(tabstrip_origin);
  if ((!vertical_tabs && l.y() > tabstrip_bounds.bottom()) ||
      (vertical_tabs && l.x() > tabstrip_bounds.right())) {
    return false;
  }

  // We convert from our parent's coordinates since we assume we fill its bounds
  // completely. We need to do this since we're not a parent of the tabstrip,
  // meaning ConvertPointToView would otherwise return something bogus.
  gfx::Point browser_view_point(l);
  View::ConvertPointToView(GetParent(), browser_view_, &browser_view_point);
  return browser_view_->IsPositionInWindowCaption(browser_view_point);
}

AccessibilityTypes::Role OpaqueBrowserFrameView::GetAccessibleRole() {
  return AccessibilityTypes::ROLE_TITLEBAR;
}

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

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

///////////////////////////////////////////////////////////////////////////////
// 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
  // TabContents because in this condition there is not yet a selected tab.
  TabContents* current_tab = browser_view_->GetSelectedTabContents();
  return current_tab ? current_tab->is_loading() : false;
}

SkBitmap OpaqueBrowserFrameView::GetFavIconForTabIconView() {
  return frame_->GetWindow()->GetDelegate()->GetWindowIcon();
}

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

int OpaqueBrowserFrameView::FrameBorderThickness(bool restored) const {
  views::Window* window = frame_->GetWindow();
  return (!restored && (window->IsMaximized() || window->IsFullscreen())) ?
      0 : kFrameBorderThickness;
}

int OpaqueBrowserFrameView::TopResizeHeight() const {
  return FrameBorderThickness(false) - kTopResizeAdjust;
}

int OpaqueBrowserFrameView::NonClientBorderThickness() const {
  // When we fill the screen, we don't show a client edge.
  views::Window* window = frame_->GetWindow();
  return FrameBorderThickness(false) +
      ((window->IsMaximized() || window->IsFullscreen()) ?
       0 : kClientEdgeThickness);
}

int OpaqueBrowserFrameView::NonClientTopBorderHeight(
    bool restored,
    bool ignore_vertical_tabs) const {
  views::Window* window = frame_->GetWindow();
  if (window->GetDelegate()->ShouldShowWindowTitle() ||
      (browser_view_->IsTabStripVisible() && !ignore_vertical_tabs &&
      browser_view_->UseVerticalTabs())) {
    return std::max(FrameBorderThickness(restored) + IconSize(),
        CaptionButtonY(restored) + kCaptionButtonHeightWithPadding) +
        TitlebarBottomThickness(restored);
  }

  return FrameBorderThickness(restored) -
      ((browser_view_->IsTabStripVisible() && !restored &&
      window->IsMaximized()) ? kTabstripTopShadowThickness : 0);
}

int OpaqueBrowserFrameView::CaptionButtonY(bool restored) const {
  // Maximized buttons start at window top so that even if their images aren't
  // drawn flush with the screen edge, they still obey Fitts' Law.
  return (!restored && frame_->GetWindow()->IsMaximized()) ?
      FrameBorderThickness(false) : kFrameShadowThickness;
}

int OpaqueBrowserFrameView::TitlebarBottomThickness(bool restored) const {
  return kTitlebarTopAndBottomEdgeThickness +
      ((!restored && frame_->GetWindow()->IsMaximized()) ?
      0 : kClientEdgeThickness);
}

int OpaqueBrowserFrameView::IconSize() const {
#if defined(OS_WIN)
  // This metric scales up if either the titlebar height or the titlebar font
  // size are increased.
  return GetSystemMetrics(SM_CYSMICON);
#else
  return std::max(BrowserFrame::GetTitleFont().GetHeight(), kIconMinimumSize);
#endif
}

gfx::Rect OpaqueBrowserFrameView::IconBounds() const {
  int size = IconSize();
  int frame_thickness = FrameBorderThickness(false);
  int y;
  views::WindowDelegate* d = frame_->GetWindow()->GetDelegate();
  if (d->ShouldShowWindowIcon() || d->ShouldShowWindowTitle()) {
    // Our frame border has a different "3D look" than Windows'.  Theirs has a
    // more complex gradient on the top that they push their icon/title below;
    // then the maximized window cuts this off and the icon/title are centered
    // in the remaining space.  Because the apparent shape of our border is
    // simpler, using the same positioning makes things look slightly uncentered
    // with restored windows, so when the window is restored, instead of
    // calculating the remaining space from below the frame border, we calculate
    // from below the 3D edge.
    int unavailable_px_at_top = frame_->GetWindow()->IsMaximized() ?
        frame_thickness : kTitlebarTopAndBottomEdgeThickness;
    // When the icon is shorter than the minimum space we reserve for the
    // caption button, we vertically center it.  We want to bias rounding to put
    // extra space above the icon, since the 3D edge (+ client edge, for
    // restored windows) below looks (to the eye) more like additional space
    // than does the 3D edge (or nothing at all, for maximized windows) above;
    // hence the +1.
    y = unavailable_px_at_top + (NonClientTopBorderHeight(false, false) -
        unavailable_px_at_top - size - TitlebarBottomThickness(false) + 1) / 2;
  } else {
    // For "browser mode" windows, we use the native positioning, which is just
    // below the top frame border.
    y = frame_thickness;
  }
  return gfx::Rect(frame_thickness + kIconLeftSpacing, y, size, size);
}

void OpaqueBrowserFrameView::PaintRestoredFrameBorder(gfx::Canvas* canvas) {
  ThemeProvider* tp = GetThemeProvider();

  SkBitmap* top_left_corner = tp->GetBitmapNamed(IDR_WINDOW_TOP_LEFT_CORNER);
  SkBitmap* top_right_corner =
      tp->GetBitmapNamed(IDR_WINDOW_TOP_RIGHT_CORNER);
  SkBitmap* top_edge = tp->GetBitmapNamed(IDR_WINDOW_TOP_CENTER);
  SkBitmap* right_edge = tp->GetBitmapNamed(IDR_WINDOW_RIGHT_SIDE);
  SkBitmap* left_edge = tp->GetBitmapNamed(IDR_WINDOW_LEFT_SIDE);
  SkBitmap* bottom_left_corner =
      tp->GetBitmapNamed(IDR_WINDOW_BOTTOM_LEFT_CORNER);
  SkBitmap* bottom_right_corner =
      tp->GetBitmapNamed(IDR_WINDOW_BOTTOM_RIGHT_CORNER);
  SkBitmap* bottom_edge = tp->GetBitmapNamed(IDR_WINDOW_BOTTOM_CENTER);

  // Window frame mode and color.
  SkBitmap* theme_frame;
  SkColor frame_color;
  if (!browser_view_->IsBrowserTypeNormal()) {
    // Never theme app and popup windows.
    ResourceBundle& rb = ResourceBundle::GetSharedInstance();
    bool is_off_the_record = browser_view_->IsOffTheRecord();
    if (ShouldPaintAsActive()) {
      theme_frame = rb.GetBitmapNamed(is_off_the_record ?
                                      IDR_THEME_FRAME_INCOGNITO : IDR_FRAME);
      frame_color = is_off_the_record ?
          ResourceBundle::frame_color_incognito :
          ResourceBundle::frame_color;
    } else {
      theme_frame = rb.GetBitmapNamed(is_off_the_record ?
                                      IDR_THEME_FRAME_INCOGNITO_INACTIVE :
                                      IDR_THEME_FRAME_INACTIVE);
      frame_color = is_off_the_record ?
          ResourceBundle::frame_color_incognito_inactive :
          ResourceBundle::frame_color_inactive;
    }
  } else if (!browser_view_->IsOffTheRecord()) {
    if (ShouldPaintAsActive()) {
      theme_frame = tp->GetBitmapNamed(IDR_THEME_FRAME);
      frame_color = tp->GetColor(BrowserThemeProvider::COLOR_FRAME);
    } else {
      theme_frame = tp->GetBitmapNamed(IDR_THEME_FRAME_INACTIVE);
      frame_color = tp->GetColor(BrowserThemeProvider::COLOR_FRAME_INACTIVE);
    }
  } else if (ShouldPaintAsActive()) {
    theme_frame = tp->GetBitmapNamed(IDR_THEME_FRAME_INCOGNITO);
    frame_color = tp->GetColor(BrowserThemeProvider::COLOR_FRAME_INCOGNITO);
  } else {
    theme_frame = tp->GetBitmapNamed(IDR_THEME_FRAME_INCOGNITO_INACTIVE);
    frame_color = tp->GetColor(
        BrowserThemeProvider::COLOR_FRAME_INCOGNITO_INACTIVE);
  }

  // Fill with the frame color first so we have a constant background for
  // areas not covered by the theme image.
  canvas->FillRectInt(frame_color, 0, 0, width(), theme_frame->height());
  // Now fill down the sides.
  canvas->FillRectInt(frame_color, 0, theme_frame->height(), left_edge->width(),
                      height() - theme_frame->height());
  canvas->FillRectInt(frame_color, width() - right_edge->width(),
                      theme_frame->height(), right_edge->width(),
                      height() - theme_frame->height());
  // Now fill the bottom area.
  canvas->FillRectInt(frame_color, left_edge->width(),
                      height() - bottom_edge->height(),
                      width() - left_edge->width() - right_edge->width(),
                      bottom_edge->height());

  // Draw the theme frame.
  canvas->TileImageInt(*theme_frame, 0, 0, width(), theme_frame->height());

  // Draw the theme frame overlay.
  if (tp->HasCustomImage(IDR_THEME_FRAME_OVERLAY) &&
      browser_view_->IsBrowserTypeNormal() &&
      !browser_view_->IsOffTheRecord()) {
    canvas->DrawBitmapInt(*tp->GetBitmapNamed(ShouldPaintAsActive() ?
        IDR_THEME_FRAME_OVERLAY : IDR_THEME_FRAME_OVERLAY_INACTIVE), 0, 0);
  }

  // Top.
  int top_left_height = std::min(top_left_corner->height(),
                                 height() - bottom_left_corner->height());
  canvas->DrawBitmapInt(*top_left_corner, 0, 0, top_left_corner->width(),
      top_left_height, 0, 0, top_left_corner->width(), top_left_height, false);
  canvas->TileImageInt(*top_edge, top_left_corner->width(), 0,
                       width() - top_right_corner->width(), top_edge->height());
  int top_right_height = std::min(top_right_corner->height(),
                                  height() - bottom_right_corner->height());
  canvas->DrawBitmapInt(*top_right_corner, 0, 0, top_right_corner->width(),
      top_right_height, width() - top_right_corner->width(), 0,
      top_right_corner->width(), top_right_height, false);
  // 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().

  // Right.
  canvas->TileImageInt(*right_edge, width() - right_edge->width(),
      top_right_height, right_edge->width(),
      height() - top_right_height - bottom_right_corner->height());

  // Bottom.
  canvas->DrawBitmapInt(*bottom_right_corner,
                        width() - bottom_right_corner->width(),
                        height() - bottom_right_corner->height());
  canvas->TileImageInt(*bottom_edge, bottom_left_corner->width(),
      height() - bottom_edge->height(),
      width() - bottom_left_corner->width() - bottom_right_corner->width(),
      bottom_edge->height());
  canvas->DrawBitmapInt(*bottom_left_corner, 0,
                        height() - bottom_left_corner->height());

  // Left.
  canvas->TileImageInt(*left_edge, 0, top_left_height, left_edge->width(),
      height() - top_left_height - bottom_left_corner->height());
}


void OpaqueBrowserFrameView::PaintMaximizedFrameBorder(gfx::Canvas* canvas) {
  ThemeProvider* tp = GetThemeProvider();
  views::Window* window = frame_->GetWindow();

  // Window frame mode and color
  SkBitmap* theme_frame;
  // Never theme app and popup windows.
  if (!browser_view_->IsBrowserTypeNormal()) {
    ResourceBundle& rb = ResourceBundle::GetSharedInstance();
    theme_frame = rb.GetBitmapNamed(ShouldPaintAsActive() ?
        IDR_FRAME : IDR_FRAME_INACTIVE);
  } else if (!browser_view_->IsOffTheRecord()) {
    theme_frame = tp->GetBitmapNamed(ShouldPaintAsActive() ?
        IDR_THEME_FRAME : IDR_THEME_FRAME_INACTIVE);
  } else {
    theme_frame = tp->GetBitmapNamed(ShouldPaintAsActive() ?
        IDR_THEME_FRAME_INCOGNITO : IDR_THEME_FRAME_INCOGNITO_INACTIVE);
  }
  // Draw the theme frame.  It must be aligned with the tabstrip as if we were
  // in restored mode.  Note that the top of the tabstrip is
  // kTabstripTopShadowThickness px off the top of the screen.
  int theme_background_y = -(GetHorizontalTabStripVerticalOffset(true) +
      kTabstripTopShadowThickness);
  canvas->TileImageInt(*theme_frame, 0, theme_background_y, width(),
                       theme_frame->height());

  // Draw the theme frame overlay
  if (tp->HasCustomImage(IDR_THEME_FRAME_OVERLAY) &&
      browser_view_->IsBrowserTypeNormal()) {
    SkBitmap* theme_overlay = tp->GetBitmapNamed(ShouldPaintAsActive() ?
        IDR_THEME_FRAME_OVERLAY : IDR_THEME_FRAME_OVERLAY_INACTIVE);
    canvas->DrawBitmapInt(*theme_overlay, 0, theme_background_y);
  }

  if (!browser_view_->IsToolbarVisible()) {
    // There's no toolbar to edge the frame border, so we need to draw a bottom
    // edge.  The graphic we use for this has a built in client edge, so we clip
    // it off the bottom.
    SkBitmap* top_center =
        tp->GetBitmapNamed(IDR_APP_TOP_CENTER);
    int edge_height = top_center->height() - kClientEdgeThickness;
    canvas->TileImageInt(*top_center, 0,
        window->GetClientView()->y() - edge_height, width(), edge_height);
  }
}

void OpaqueBrowserFrameView::PaintTitleBar(gfx::Canvas* canvas) {
  // The window icon is painted by the TabIconView.
  views::WindowDelegate* d = frame_->GetWindow()->GetDelegate();
  if (d->ShouldShowWindowTitle()) {
    canvas->DrawStringInt(d->GetWindowTitle(), BrowserFrame::GetTitleFont(),
        SK_ColorWHITE, MirroredLeftPointForRect(title_bounds_),
        title_bounds_.y(), title_bounds_.width(), title_bounds_.height());
    /* 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. */
  }
}

void OpaqueBrowserFrameView::PaintToolbarBackground(gfx::Canvas* canvas) {
  gfx::Rect toolbar_bounds(browser_view_->GetToolbarBounds());
  if (toolbar_bounds.IsEmpty())
    return;
  gfx::Point toolbar_origin(toolbar_bounds.origin());
  ConvertPointToView(browser_view_, this, &toolbar_origin);
  toolbar_bounds.set_origin(toolbar_origin);

  int x = toolbar_bounds.x();
  int w = toolbar_bounds.width();
  int y, h;
  if (browser_view_->UseVerticalTabs()) {
    gfx::Point tabstrip_origin(browser_view_->tabstrip()->bounds().origin());
    ConvertPointToView(browser_view_, this, &tabstrip_origin);
    y = tabstrip_origin.y() - kVerticalTabBorderInset;
    h = toolbar_bounds.bottom() - y;
  } else {
    y = toolbar_bounds.y();
    h = toolbar_bounds.bottom();
  }

  // Gross hack: We split the toolbar images into two pieces, since sometimes
  // (popup mode) the toolbar isn't tall enough to show the whole image.  The
  // split happens between the top shadow section and the bottom gradient
  // section so that we never break the gradient.
  int split_point = kFrameShadowThickness * 2;
  int bottom_y = y + split_point;
  ThemeProvider* tp = GetThemeProvider();
  SkBitmap* toolbar_left = tp->GetBitmapNamed(IDR_CONTENT_TOP_LEFT_CORNER);
  int bottom_edge_height = std::min(toolbar_left->height(), h) - split_point;

  // Split our canvas out so we can mask out the corners of the toolbar
  // without masking out the frame.
  canvas->SaveLayerAlpha(
      255, gfx::Rect(x - kClientEdgeThickness, y, w + kClientEdgeThickness * 3,
                     h));
  canvas->AsCanvasSkia()->drawARGB(0, 255, 255, 255, SkXfermode::kClear_Mode);

  SkColor theme_toolbar_color =
      tp->GetColor(BrowserThemeProvider::COLOR_TOOLBAR);
  canvas->FillRectInt(theme_toolbar_color, x, bottom_y, w, bottom_edge_height);

  // Tile the toolbar image starting at the frame edge on the left and where the
  // horizontal tabstrip is (or would be) on the top.
  SkBitmap* theme_toolbar = tp->GetBitmapNamed(IDR_THEME_TOOLBAR);
  canvas->TileImageInt(*theme_toolbar, x,
                       bottom_y - GetHorizontalTabStripVerticalOffset(false), x,
                       bottom_y, w, theme_toolbar->height());

  // Draw rounded corners for the tab.
  SkBitmap* toolbar_left_mask =
      tp->GetBitmapNamed(IDR_CONTENT_TOP_LEFT_CORNER_MASK);
  SkBitmap* toolbar_right_mask =
      tp->GetBitmapNamed(IDR_CONTENT_TOP_RIGHT_CORNER_MASK);

  // We mask out the corners by using the DestinationIn transfer mode,
  // which keeps the RGB pixels from the destination and the alpha from
  // the source.
  SkPaint paint;
  paint.setXfermodeMode(SkXfermode::kDstIn_Mode);

  // Mask the left edge.
  int left_x = x - kContentEdgeShadowThickness;
  canvas->DrawBitmapInt(*toolbar_left_mask, 0, 0, toolbar_left_mask->width(),
                        split_point, left_x, y, toolbar_left_mask->width(),
                        split_point, false, paint);
  canvas->DrawBitmapInt(*toolbar_left_mask, 0,
      toolbar_left_mask->height() - bottom_edge_height,
      toolbar_left_mask->width(), bottom_edge_height, left_x, bottom_y,
      toolbar_left_mask->width(), bottom_edge_height, false, paint);

  // Mask the right edge.
  int right_x =
      x + w - toolbar_right_mask->width() + kContentEdgeShadowThickness;
  canvas->DrawBitmapInt(*toolbar_right_mask, 0, 0, toolbar_right_mask->width(),
                        split_point, right_x, y, toolbar_right_mask->width(),
                        split_point, false, paint);
  canvas->DrawBitmapInt(*toolbar_right_mask, 0,
      toolbar_right_mask->height() - bottom_edge_height,
      toolbar_right_mask->width(), bottom_edge_height, right_x, bottom_y,
      toolbar_right_mask->width(), bottom_edge_height, false, paint);
  canvas->Restore();

  canvas->DrawBitmapInt(*toolbar_left, 0, 0, toolbar_left->width(), split_point,
                        left_x, y, toolbar_left->width(), split_point, false);
  canvas->DrawBitmapInt(*toolbar_left, 0,
      toolbar_left->height() - bottom_edge_height, toolbar_left->width(),
      bottom_edge_height, left_x, bottom_y, toolbar_left->width(),
      bottom_edge_height, false);

  SkBitmap* toolbar_center =
      tp->GetBitmapNamed(IDR_CONTENT_TOP_CENTER);
  canvas->TileImageInt(*toolbar_center, 0, 0, left_x + toolbar_left->width(),
      y, right_x - (left_x + toolbar_left->width()),
      split_point);

  SkBitmap* toolbar_right = tp->GetBitmapNamed(IDR_CONTENT_TOP_RIGHT_CORNER);
  canvas->DrawBitmapInt(*toolbar_right, 0, 0, toolbar_right->width(),
      split_point, right_x, y, toolbar_right->width(), split_point, false);
  canvas->DrawBitmapInt(*toolbar_right, 0,
      toolbar_right->height() - bottom_edge_height, toolbar_right->width(),
      bottom_edge_height, right_x, bottom_y, toolbar_right->width(),
      bottom_edge_height, false);

  // Draw the content/toolbar separator.
  canvas->FillRectInt(ResourceBundle::toolbar_separator_color,
      x + kClientEdgeThickness, toolbar_bounds.bottom() - kClientEdgeThickness,
      w - (2 * kClientEdgeThickness), kClientEdgeThickness);
}

void OpaqueBrowserFrameView::PaintOTRAvatar(gfx::Canvas* canvas) {
  // In RTL mode, the avatar icon should be looking the opposite direction.
  canvas->Save();
  if (base::i18n::IsRTL()) {
    canvas->TranslateInt(width(), 0);
    canvas->ScaleInt(-1, 1);
  }

  SkBitmap otr_avatar_icon = browser_view_->GetOTRAvatarIcon();
  int w = otr_avatar_bounds_.width();
  int h = otr_avatar_bounds_.height();
  canvas->DrawBitmapInt(otr_avatar_icon, 0,
      // Bias the rounding to select a region that's lower rather than higher,
      // as the shadows at the image top mean the apparent center is below the
      // real center.
      ((otr_avatar_icon.height() - otr_avatar_bounds_.height()) + 1) / 2, w, h,
      otr_avatar_bounds_.x(), otr_avatar_bounds_.y(), w, h, false);

  canvas->Restore();
}

void OpaqueBrowserFrameView::PaintRestoredClientEdge(gfx::Canvas* canvas) {
  ThemeProvider* tp = GetThemeProvider();
  int client_area_top = frame_->GetWindow()->GetClientView()->y();
  int image_top = client_area_top;

  gfx::Rect client_area_bounds = CalculateClientAreaBounds(width(), height());
  SkColor toolbar_color = tp->GetColor(BrowserThemeProvider::COLOR_TOOLBAR);

  if (browser_view_->IsToolbarVisible()) {
    // The client edge images always start below the toolbar corner images.  The
    // client edge filled rects start there or at the bottom of the tooolbar,
    // whichever is shorter.
    gfx::Rect toolbar_bounds(browser_view_->GetToolbarBounds());
    image_top += toolbar_bounds.y() +
        tp->GetBitmapNamed(IDR_CONTENT_TOP_LEFT_CORNER)->height();
    client_area_top = std::min(image_top,
        client_area_top + toolbar_bounds.bottom() - kClientEdgeThickness);
    if (browser_view_->UseVerticalTabs()) {
      client_area_top -= kVerticalTabBorderInset;
      image_top -= kVerticalTabBorderInset;
    }
  } else if (!browser_view_->IsTabStripVisible()) {
    // The toolbar isn't going to draw a client edge for us, so draw one
    // ourselves.
    SkBitmap* top_left = tp->GetBitmapNamed(IDR_APP_TOP_LEFT);
    SkBitmap* top_center = tp->GetBitmapNamed(IDR_APP_TOP_CENTER);
    SkBitmap* top_right = tp->GetBitmapNamed(IDR_APP_TOP_RIGHT);
    int top_edge_y = client_area_top - top_center->height();
    int height = client_area_top - top_edge_y;

    canvas->DrawBitmapInt(*top_left, 0, 0, top_left->width(), height,
        client_area_bounds.x() - top_left->width(), top_edge_y,
        top_left->width(), height, false);
    canvas->TileImageInt(*top_center, 0, 0, client_area_bounds.x(), top_edge_y,
      client_area_bounds.width(), std::min(height, top_center->height()));
    canvas->DrawBitmapInt(*top_right, 0, 0, top_right->width(), height,
        client_area_bounds.right(), top_edge_y,
        top_right->width(), height, false);

    // Draw the toolbar color across the top edge.
    canvas->FillRectInt(toolbar_color,
        client_area_bounds.x() - kClientEdgeThickness,
        client_area_top - kClientEdgeThickness,
        client_area_bounds.width() + (2 * kClientEdgeThickness),
        kClientEdgeThickness);
  }

  int client_area_bottom =
      std::max(client_area_top, height() - NonClientBorderThickness());
  int image_height = client_area_bottom - image_top;

  // Draw the client edge images.
  // Draw the client edge images.
  SkBitmap* right = tp->GetBitmapNamed(IDR_CONTENT_RIGHT_SIDE);
  canvas->TileImageInt(*right, client_area_bounds.right(), image_top,
                       right->width(), image_height);
  canvas->DrawBitmapInt(
      *tp->GetBitmapNamed(IDR_CONTENT_BOTTOM_RIGHT_CORNER),
      client_area_bounds.right(), client_area_bottom);
  SkBitmap* bottom = tp->GetBitmapNamed(IDR_CONTENT_BOTTOM_CENTER);
  canvas->TileImageInt(*bottom, client_area_bounds.x(),
      client_area_bottom, client_area_bounds.width(),
      bottom->height());
  SkBitmap* bottom_left =
      tp->GetBitmapNamed(IDR_CONTENT_BOTTOM_LEFT_CORNER);
  canvas->DrawBitmapInt(*bottom_left,
      client_area_bounds.x() - bottom_left->width(), client_area_bottom);
  SkBitmap* left = tp->GetBitmapNamed(IDR_CONTENT_LEFT_SIDE);
  canvas->TileImageInt(*left, client_area_bounds.x() - left->width(),
                       image_top, left->width(), image_height);

  // Draw the toolbar color so that the client edges show the right color even
  // where not covered by the toolbar image.  NOTE: We do this after drawing the
  // images because the images are meant to alpha-blend atop the frame whereas
  // these rects are meant to be fully opaque, without anything overlaid.
  canvas->FillRectInt(toolbar_color,
      client_area_bounds.x() - kClientEdgeThickness, client_area_top,
      kClientEdgeThickness,
      client_area_bottom + kClientEdgeThickness - client_area_top);
  canvas->FillRectInt(toolbar_color, client_area_bounds.x(), client_area_bottom,
                      client_area_bounds.width(), kClientEdgeThickness);
  canvas->FillRectInt(toolbar_color, client_area_bounds.right(),
      client_area_top, kClientEdgeThickness,
      client_area_bottom + kClientEdgeThickness - client_area_top);
}

void OpaqueBrowserFrameView::LayoutWindowControls() {
  bool is_maximized = frame_->GetWindow()->IsMaximized();
  close_button_->SetImageAlignment(views::ImageButton::ALIGN_LEFT,
                                   views::ImageButton::ALIGN_BOTTOM);
  int caption_y = CaptionButtonY(false);
  // There should always be the same number of non-shadow pixels visible to the
  // side of the caption buttons.  In maximized mode we extend the rightmost
  // button to the screen corner to obey Fitts' Law.
  int right_extra_width = is_maximized ?
      (kFrameBorderThickness - kFrameShadowThickness) : 0;
  gfx::Size close_button_size = close_button_->GetPreferredSize();
  close_button_->SetBounds(width() - FrameBorderThickness(false) -
      right_extra_width - close_button_size.width(), caption_y,
      close_button_size.width() + right_extra_width,
      close_button_size.height());

#if defined(OS_CHROMEOS)
  if (is_maximized) {
    minimize_button_->SetVisible(false);
    restore_button_->SetVisible(false);
    maximize_button_->SetVisible(false);

    if (browser_view_->browser()->type() == Browser::TYPE_DEVTOOLS) {
      close_button_->SetVisible(true);
      minimize_button_->SetBounds(close_button_->bounds().x(), 0, 0, 0);
    } else {
      close_button_->SetVisible(false);
      // Set the bounds of the minimize button so that we don't have to change
      // other places that rely on the bounds. Put it slightly to the right
      // of the edge of the view, so that when we remove the spacing it lines
      // up with the edge.
      minimize_button_->SetBounds(width() - FrameBorderThickness(false) +
          kNewTabCaptionMaximizedSpacing, 0, 0, 0);
    }

    return;
  } else {
    close_button_->SetVisible(true);
  }
#endif

  // When the window is restored, we show a maximized button; otherwise, we show
  // a restore button.
  bool is_restored = !is_maximized && !frame_->GetWindow()->IsMinimized();
  views::ImageButton* invisible_button = is_restored ?
      restore_button_ : maximize_button_;
  invisible_button->SetVisible(false);

  views::ImageButton* visible_button = is_restored ?
      maximize_button_ : restore_button_;
  visible_button->SetVisible(true);
  visible_button->SetImageAlignment(views::ImageButton::ALIGN_LEFT,
                                    views::ImageButton::ALIGN_BOTTOM);
  gfx::Size visible_button_size = visible_button->GetPreferredSize();
  visible_button->SetBounds(close_button_->x() - visible_button_size.width(),
                            caption_y, visible_button_size.width(),
                            visible_button_size.height());

  minimize_button_->SetVisible(true);
  minimize_button_->SetImageAlignment(views::ImageButton::ALIGN_LEFT,
                                      views::ImageButton::ALIGN_BOTTOM);
  gfx::Size minimize_button_size = minimize_button_->GetPreferredSize();
  minimize_button_->SetBounds(
      visible_button->x() - minimize_button_size.width(), caption_y,
      minimize_button_size.width(),
      minimize_button_size.height());
}

void OpaqueBrowserFrameView::LayoutTitleBar() {
  // The window title is based on the calculated icon position, even when there
  // is no icon.
  gfx::Rect icon_bounds(IconBounds());
  views::WindowDelegate* d = frame_->GetWindow()->GetDelegate();
  if (d->ShouldShowWindowIcon())
    window_icon_->SetBounds(icon_bounds);

  // Size the title, if visible.
  if (d->ShouldShowWindowTitle()) {
    int title_x = d->ShouldShowWindowIcon() ?
        icon_bounds.right() + kIconTitleSpacing : icon_bounds.x();
    int title_height = BrowserFrame::GetTitleFont().GetHeight();
    // We bias the title position so that when the difference between the icon
    // and title heights is odd, the extra pixel of the title is above the
    // vertical midline rather than below.  This compensates for how the icon is
    // already biased downwards (see IconBounds()) and helps prevent descenders
    // on the title from overlapping the 3D edge at the bottom of the titlebar.
    title_bounds_.SetRect(title_x,
        icon_bounds.y() + ((icon_bounds.height() - title_height - 1) / 2),
        std::max(0, minimize_button_->x() - kTitleLogoSpacing - title_x),
        title_height);
  }
}

void OpaqueBrowserFrameView::LayoutOTRAvatar() {
  SkBitmap otr_avatar_icon = browser_view_->GetOTRAvatarIcon();
  int otr_bottom, otr_restored_y;
  if (browser_view_->UseVerticalTabs()) {
    otr_bottom = NonClientTopBorderHeight(false, false) - kOTRBottomSpacing;
    otr_restored_y = kFrameShadowThickness;
  } else {
    otr_bottom = GetHorizontalTabStripVerticalOffset(false) +
        browser_view_->GetTabStripHeight() - kOTRBottomSpacing;
    otr_restored_y = otr_bottom - otr_avatar_icon.height();
  }
  int otr_y = frame_->GetWindow()->IsMaximized() ?
      (NonClientTopBorderHeight(false, true) + kTabstripTopShadowThickness) :
      otr_restored_y;
  otr_avatar_bounds_.SetRect(NonClientBorderThickness() + kOTRSideSpacing,
      otr_y, otr_avatar_icon.width(),
      browser_view_->ShouldShowOffTheRecordAvatar() ? (otr_bottom - otr_y) : 0);
}

gfx::Rect OpaqueBrowserFrameView::CalculateClientAreaBounds(int width,
                                                            int height) const {
  int top_height = NonClientTopBorderHeight(false, false);
  int border_thickness = NonClientBorderThickness();
  return gfx::Rect(border_thickness, top_height,
                   std::max(0, width - (2 * border_thickness)),
                   std::max(0, height - top_height - border_thickness));
}