chrome/browser/ui/views/frame/opaque_browser_frame_view.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/ui/views/frame/opaque_browser_frame_view.h"
   6
   7 #include <algorithm>
   8 #include <string>
   9
  10 #include "base/compiler_specific.h"
  11 #include "base/prefs/pref_service.h"
  12 #include "base/profiler/scoped_tracker.h"
  13 #include "base/strings/utf_string_conversions.h"
  14 #include "chrome/browser/profiles/profiles_state.h"
  15 #include "chrome/browser/signin/signin_header_helper.h"
  16 #include "chrome/browser/themes/theme_properties.h"
  17 #include "chrome/browser/ui/views/frame/browser_frame.h"
  18 #include "chrome/browser/ui/views/frame/browser_view.h"
  19 #include "chrome/browser/ui/views/frame/opaque_browser_frame_view_layout.h"
  20 #include "chrome/browser/ui/views/frame/opaque_browser_frame_view_platform_specific.h"
  21 #include "chrome/browser/ui/views/profiles/avatar_menu_button.h"
  22 #include "chrome/browser/ui/views/profiles/new_avatar_button.h"
  23 #include "chrome/browser/ui/views/tab_icon_view.h"
  24 #include "chrome/browser/ui/views/tabs/tab_strip.h"
  25 #include "chrome/browser/ui/views/toolbar/toolbar_view.h"
  26 #include "chrome/grit/generated_resources.h"
  27 #include "components/signin/core/common/profile_management_switches.h"
  28 #include "content/public/browser/notification_service.h"
  29 #include "content/public/browser/web_contents.h"
  30 #include "grit/theme_resources.h"
  31 #include "ui/accessibility/ax_view_state.h"
  32 #include "ui/base/hit_test.h"
  33 #include "ui/base/l10n/l10n_util.h"
  34 #include "ui/base/resource/resource_bundle.h"
  35 #include "ui/base/theme_provider.h"
  36 #include "ui/gfx/canvas.h"
  37 #include "ui/gfx/font_list.h"
  38 #include "ui/gfx/geometry/rect_conversions.h"
  39 #include "ui/gfx/image/image.h"
  40 #include "ui/gfx/image/image_skia.h"
  41 #include "ui/gfx/path.h"
  42 #include "ui/resources/grit/ui_resources.h"
  43 #include "ui/views/controls/button/image_button.h"
  44 #include "ui/views/controls/image_view.h"
  45 #include "ui/views/controls/label.h"
  46 #include "ui/views/layout/layout_constants.h"
  47 #include "ui/views/views_delegate.h"
  48 #include "ui/views/widget/root_view.h"
  49 #include "ui/views/window/frame_background.h"
  50 #include "ui/views/window/window_shape.h"
  51
  52 #if defined(ENABLE_SUPERVISED_USERS)
  53 #include "chrome/browser/ui/views/profiles/supervised_user_avatar_label.h"
  54 #endif
  55
  56 #if defined(OS_LINUX)
  57 #include "ui/views/controls/menu/menu_runner.h"
  58 #endif
  59
  60 using content::WebContents;
  61
  62 namespace {
  63
  64 // While resize areas on Windows are normally the same size as the window
  65 // borders, our top area is shrunk by 1 px to make it easier to move the window
  66 // around with our thinner top grabbable strip.  (Incidentally, our side and
  67 // bottom resize areas don't match the frame border thickness either -- they
  68 // span the whole nonclient area, so there's no "dead zone" for the mouse.)
  69 const int kTopResizeAdjust = 1;
  70
  71 // In the window corners, the resize areas don't actually expand bigger, but the
  72 // 16 px at the end of each edge triggers diagonal resizing.
  73 const int kResizeAreaCornerSize = 16;
  74
  75 // The content left/right images have a shadow built into them.
  76 const int kContentEdgeShadowThickness = 2;
  77
  78 // The icon never shrinks below 16 px on a side.
  79 const int kIconMinimumSize = 16;
  80
  81 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
  82 // The number of pixels to move the frame background image upwards when using
  83 // the GTK+ theme and the titlebar is condensed.
  84 const int kGTKThemeCondensedFrameTopInset = 15;
  85 #endif
  86
  87 }  // namespace
  88
  89 ///////////////////////////////////////////////////////////////////////////////
  90 // OpaqueBrowserFrameView, public:
  91
  92 OpaqueBrowserFrameView::OpaqueBrowserFrameView(BrowserFrame* frame,
  93                                                BrowserView* browser_view)
  94     : BrowserNonClientFrameView(frame, browser_view),
  95       layout_(new OpaqueBrowserFrameViewLayout(this)),
  96       minimize_button_(nullptr),
  97       maximize_button_(nullptr),
  98       restore_button_(nullptr),
  99       close_button_(nullptr),
 100       window_icon_(nullptr),
 101       window_title_(nullptr),
 102       frame_background_(new views::FrameBackground()) {
 103   SetLayoutManager(layout_);
 104
 105   minimize_button_ = InitWindowCaptionButton(IDR_MINIMIZE,
 106                                              IDR_MINIMIZE_H,
 107                                              IDR_MINIMIZE_P,
 108                                              IDR_MINIMIZE_BUTTON_MASK,
 109                                              IDS_ACCNAME_MINIMIZE,
 110                                              VIEW_ID_MINIMIZE_BUTTON);
 111   maximize_button_ = InitWindowCaptionButton(IDR_MAXIMIZE,
 112                                              IDR_MAXIMIZE_H,
 113                                              IDR_MAXIMIZE_P,
 114                                              IDR_MAXIMIZE_BUTTON_MASK,
 115                                              IDS_ACCNAME_MAXIMIZE,
 116                                              VIEW_ID_MAXIMIZE_BUTTON);
 117   restore_button_ = InitWindowCaptionButton(IDR_RESTORE,
 118                                             IDR_RESTORE_H,
 119                                             IDR_RESTORE_P,
 120                                             IDR_RESTORE_BUTTON_MASK,
 121                                             IDS_ACCNAME_RESTORE,
 122                                             VIEW_ID_RESTORE_BUTTON);
 123   close_button_ = InitWindowCaptionButton(IDR_CLOSE,
 124                                           IDR_CLOSE_H,
 125                                           IDR_CLOSE_P,
 126                                           IDR_CLOSE_BUTTON_MASK,
 127                                           IDS_ACCNAME_CLOSE,
 128                                           VIEW_ID_CLOSE_BUTTON);
 129
 130   // Initializing the TabIconView is expensive, so only do it if we need to.
 131   if (browser_view->ShouldShowWindowIcon()) {
 132     window_icon_ = new TabIconView(this, this);
 133     window_icon_->set_is_light(true);
 134     window_icon_->set_id(VIEW_ID_WINDOW_ICON);
 135     AddChildView(window_icon_);
 136     window_icon_->Update();
 137   }
 138
 139   window_title_ = new views::Label(
 140       browser_view->GetWindowTitle(),
 141       gfx::FontList(BrowserFrame::GetTitleFontList()));
 142   window_title_->SetVisible(browser_view->ShouldShowWindowTitle());
 143   window_title_->SetEnabledColor(SK_ColorWHITE);
 144   window_title_->SetSubpixelRenderingEnabled(false);
 145   window_title_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
 146   window_title_->set_id(VIEW_ID_WINDOW_TITLE);
 147   AddChildView(window_title_);
 148
 149   UpdateAvatar();
 150
 151   platform_observer_.reset(OpaqueBrowserFrameViewPlatformSpecific::Create(
 152       this, layout_, browser_view->browser()->profile()));
 153 }
 154
 155 OpaqueBrowserFrameView::~OpaqueBrowserFrameView() {
 156 }
 157
 158 ///////////////////////////////////////////////////////////////////////////////
 159 // OpaqueBrowserFrameView, BrowserNonClientFrameView implementation:
 160
 161 gfx::Rect OpaqueBrowserFrameView::GetBoundsForTabStrip(
 162     views::View* tabstrip) const {
 163   if (!tabstrip)
 164     return gfx::Rect();
 165
 166   return layout_->GetBoundsForTabStrip(tabstrip->GetPreferredSize(), width());
 167 }
 168
 169 int OpaqueBrowserFrameView::GetTopInset() const {
 170   return browser_view()->IsTabStripVisible() ?
 171       layout_->GetTabStripInsetsTop(false) :
 172       layout_->NonClientTopBorderHeight(false);
 173 }
 174
 175 int OpaqueBrowserFrameView::GetThemeBackgroundXInset() const {
 176   return 0;
 177 }
 178
 179 void OpaqueBrowserFrameView::UpdateThrobber(bool running) {
 180   if (window_icon_)
 181     window_icon_->Update();
 182 }
 183
 184 gfx::Size OpaqueBrowserFrameView::GetMinimumSize() const {
 185   return layout_->GetMinimumSize(width());
 186 }
 187
 188 ///////////////////////////////////////////////////////////////////////////////
 189 // OpaqueBrowserFrameView, views::NonClientFrameView implementation:
 190
 191 gfx::Rect OpaqueBrowserFrameView::GetBoundsForClientView() const {
 192   return layout_->client_view_bounds();
 193 }
 194
 195 gfx::Rect OpaqueBrowserFrameView::GetWindowBoundsForClientBounds(
 196     const gfx::Rect& client_bounds) const {
 197   return layout_->GetWindowBoundsForClientBounds(client_bounds);
 198 }
 199
 200 bool OpaqueBrowserFrameView::IsWithinAvatarMenuButtons(
 201     const gfx::Point& point) const {
 202   if (avatar_button() &&
 203      avatar_button()->GetMirroredBounds().Contains(point)) {
 204     return true;
 205   }
 206   if (new_avatar_button() &&
 207      new_avatar_button()->GetMirroredBounds().Contains(point)) {
 208     return true;
 209   }
 210
 211   return false;
 212 }
 213
 214 int OpaqueBrowserFrameView::NonClientHitTest(const gfx::Point& point) {
 215   if (!bounds().Contains(point))
 216     return HTNOWHERE;
 217
 218   // See if the point is within the avatar menu button.
 219   if (IsWithinAvatarMenuButtons(point))
 220     return HTCLIENT;
 221 #if defined(ENABLE_SUPERVISED_USERS)
 222   // ...or within the avatar label, if it's a supervised user.
 223   if ((supervised_user_avatar_label() &&
 224        supervised_user_avatar_label()->GetMirroredBounds().Contains(point)))
 225     return HTCLIENT;
 226 #endif
 227
 228   int frame_component = frame()->client_view()->NonClientHitTest(point);
 229
 230   // See if we're in the sysmenu region.  We still have to check the tabstrip
 231   // first so that clicks in a tab don't get treated as sysmenu clicks.
 232   gfx::Rect sysmenu_rect(IconBounds());
 233   // In maximized mode we extend the rect to the screen corner to take advantage
 234   // of Fitts' Law.
 235   if (layout_->IsTitleBarCondensed())
 236     sysmenu_rect.SetRect(0, 0, sysmenu_rect.right(), sysmenu_rect.bottom());
 237   sysmenu_rect.set_x(GetMirroredXForRect(sysmenu_rect));
 238   if (sysmenu_rect.Contains(point))
 239     return (frame_component == HTCLIENT) ? HTCLIENT : HTSYSMENU;
 240
 241   if (frame_component != HTNOWHERE)
 242     return frame_component;
 243
 244   // Then see if the point is within any of the window controls.
 245   if (close_button_ && close_button_->visible() &&
 246       close_button_->GetMirroredBounds().Contains(point))
 247     return HTCLOSE;
 248   if (restore_button_ && restore_button_->visible() &&
 249       restore_button_->GetMirroredBounds().Contains(point))
 250     return HTMAXBUTTON;
 251   if (maximize_button_ && maximize_button_->visible() &&
 252       maximize_button_->GetMirroredBounds().Contains(point))
 253     return HTMAXBUTTON;
 254   if (minimize_button_ && minimize_button_->visible() &&
 255       minimize_button_->GetMirroredBounds().Contains(point))
 256     return HTMINBUTTON;
 257
 258   views::WidgetDelegate* delegate = frame()->widget_delegate();
 259   if (!delegate) {
 260     LOG(WARNING) << "delegate is null, returning safe default.";
 261     return HTCAPTION;
 262   }
 263   int window_component = GetHTComponentForFrame(point, TopResizeHeight(),
 264       NonClientBorderThickness(), kResizeAreaCornerSize, kResizeAreaCornerSize,
 265       delegate->CanResize());
 266   // Fall back to the caption if no other component matches.
 267   return (window_component == HTNOWHERE) ? HTCAPTION : window_component;
 268 }
 269
 270 void OpaqueBrowserFrameView::GetWindowMask(const gfx::Size& size,
 271                                            gfx::Path* window_mask) {
 272   DCHECK(window_mask);
 273
 274   if (layout_->IsTitleBarCondensed() || frame()->IsFullscreen())
 275     return;
 276
 277   views::GetDefaultWindowMask(size, window_mask);
 278 }
 279
 280 void OpaqueBrowserFrameView::ResetWindowControls() {
 281   restore_button_->SetState(views::CustomButton::STATE_NORMAL);
 282   minimize_button_->SetState(views::CustomButton::STATE_NORMAL);
 283   maximize_button_->SetState(views::CustomButton::STATE_NORMAL);
 284   // The close button isn't affected by this constraint.
 285 }
 286
 287 void OpaqueBrowserFrameView::UpdateWindowIcon() {
 288   if (window_icon_)
 289     window_icon_->SchedulePaint();
 290 }
 291
 292 void OpaqueBrowserFrameView::UpdateWindowTitle() {
 293   if (!frame()->IsFullscreen())
 294     window_title_->SchedulePaint();
 295 }
 296
 297 void OpaqueBrowserFrameView::SizeConstraintsChanged() {
 298 }
 299
 300 ///////////////////////////////////////////////////////////////////////////////
 301 // OpaqueBrowserFrameView, views::View overrides:
 302
 303 void OpaqueBrowserFrameView::GetAccessibleState(
 304     ui::AXViewState* state) {
 305   state->role = ui::AX_ROLE_TITLE_BAR;
 306 }
 307
 308 ///////////////////////////////////////////////////////////////////////////////
 309 // OpaqueBrowserFrameView, views::ButtonListener implementation:
 310
 311 void OpaqueBrowserFrameView::ButtonPressed(views::Button* sender,
 312                                            const ui::Event& event) {
 313   if (sender == minimize_button_) {
 314     frame()->Minimize();
 315   } else if (sender == maximize_button_) {
 316     frame()->Maximize();
 317   } else if (sender == restore_button_) {
 318     frame()->Restore();
 319   } else if (sender == close_button_) {
 320     frame()->Close();
 321   } else if (sender == new_avatar_button()) {
 322     BrowserWindow::AvatarBubbleMode mode =
 323         BrowserWindow::AVATAR_BUBBLE_MODE_DEFAULT;
 324     if (event.IsMouseEvent() &&
 325         static_cast<const ui::MouseEvent&>(event).IsRightMouseButton()) {
 326       mode = BrowserWindow::AVATAR_BUBBLE_MODE_FAST_USER_SWITCH;
 327     }
 328     browser_view()->ShowAvatarBubbleFromAvatarButton(
 329         mode,
 330         signin::ManageAccountsParams());
 331   }
 332 }
 333
 334 void OpaqueBrowserFrameView::OnMenuButtonClicked(views::View* source,
 335                                                  const gfx::Point& point) {
 336 #if defined(OS_LINUX)
 337   views::MenuRunner menu_runner(frame()->GetSystemMenuModel(),
 338                                 views::MenuRunner::HAS_MNEMONICS);
 339   ignore_result(menu_runner.RunMenuAt(browser_view()->GetWidget(),
 340                                       window_icon_,
 341                                       window_icon_->GetBoundsInScreen(),
 342                                       views::MENU_ANCHOR_TOPLEFT,
 343                                       ui::MENU_SOURCE_MOUSE));
 344 #endif
 345 }
 346
 347 ///////////////////////////////////////////////////////////////////////////////
 348 // OpaqueBrowserFrameView, TabIconView::TabContentsProvider implementation:
 349
 350 bool OpaqueBrowserFrameView::ShouldTabIconViewAnimate() const {
 351   // This function is queried during the creation of the window as the
 352   // TabIconView we host is initialized, so we need to null check the selected
 353   // WebContents because in this condition there is not yet a selected tab.
 354   WebContents* current_tab = browser_view()->GetActiveWebContents();
 355   return current_tab ? current_tab->IsLoading() : false;
 356 }
 357
 358 gfx::ImageSkia OpaqueBrowserFrameView::GetFaviconForTabIconView() {
 359   views::WidgetDelegate* delegate = frame()->widget_delegate();
 360   if (!delegate) {
 361     LOG(WARNING) << "delegate is null, returning safe default.";
 362     return gfx::ImageSkia();
 363   }
 364   return delegate->GetWindowIcon();
 365 }
 366
 367 ///////////////////////////////////////////////////////////////////////////////
 368 // OpaqueBrowserFrameView, OpaqueBrowserFrameViewLayoutDelegate implementation:
 369
 370 bool OpaqueBrowserFrameView::ShouldShowWindowIcon() const {
 371   views::WidgetDelegate* delegate = frame()->widget_delegate();
 372   return ShouldShowWindowTitleBar() && delegate &&
 373          delegate->ShouldShowWindowIcon();
 374 }
 375
 376 bool OpaqueBrowserFrameView::ShouldShowWindowTitle() const {
 377   // |delegate| may be null if called from callback of InputMethodChanged while
 378   // a window is being destroyed.
 379   // See more discussion at http://crosbug.com/8958
 380   views::WidgetDelegate* delegate = frame()->widget_delegate();
 381   return ShouldShowWindowTitleBar() && delegate &&
 382          delegate->ShouldShowWindowTitle();
 383 }
 384
 385 base::string16 OpaqueBrowserFrameView::GetWindowTitle() const {
 386   return frame()->widget_delegate()->GetWindowTitle();
 387 }
 388
 389 int OpaqueBrowserFrameView::GetIconSize() const {
 390 #if defined(OS_WIN)
 391   // This metric scales up if either the titlebar height or the titlebar font
 392   // size are increased.
 393   return GetSystemMetrics(SM_CYSMICON);
 394 #else
 395   return std::max(BrowserFrame::GetTitleFontList().GetHeight(),
 396                   kIconMinimumSize);
 397 #endif
 398 }
 399
 400 bool OpaqueBrowserFrameView::ShouldLeaveOffsetNearTopBorder() const {
 401   return frame()->ShouldLeaveOffsetNearTopBorder();
 402 }
 403
 404 gfx::Size OpaqueBrowserFrameView::GetBrowserViewMinimumSize() const {
 405   return browser_view()->GetMinimumSize();
 406 }
 407
 408 bool OpaqueBrowserFrameView::ShouldShowCaptionButtons() const {
 409   return ShouldShowWindowTitleBar();
 410 }
 411
 412 bool OpaqueBrowserFrameView::ShouldShowAvatar() const {
 413   return browser_view()->ShouldShowAvatar();
 414 }
 415
 416 bool OpaqueBrowserFrameView::IsRegularOrGuestSession() const {
 417   return browser_view()->IsRegularOrGuestSession();
 418 }
 419
 420 gfx::ImageSkia OpaqueBrowserFrameView::GetOTRAvatarIcon() const {
 421   return browser_view()->GetOTRAvatarIcon();
 422 }
 423
 424 bool OpaqueBrowserFrameView::IsMaximized() const {
 425   return frame()->IsMaximized();
 426 }
 427
 428 bool OpaqueBrowserFrameView::IsMinimized() const {
 429   return frame()->IsMinimized();
 430 }
 431
 432 bool OpaqueBrowserFrameView::IsFullscreen() const {
 433   return frame()->IsFullscreen();
 434 }
 435
 436 bool OpaqueBrowserFrameView::IsTabStripVisible() const {
 437   return browser_view()->IsTabStripVisible();
 438 }
 439
 440 int OpaqueBrowserFrameView::GetTabStripHeight() const {
 441   return browser_view()->GetTabStripHeight();
 442 }
 443
 444 gfx::Size OpaqueBrowserFrameView::GetTabstripPreferredSize() const {
 445   gfx::Size s = browser_view()->tabstrip()->GetPreferredSize();
 446   return s;
 447 }
 448
 449 ///////////////////////////////////////////////////////////////////////////////
 450 // OpaqueBrowserFrameView, protected:
 451
 452 // views::View:
 453 void OpaqueBrowserFrameView::OnPaint(gfx::Canvas* canvas) {
 454   if (frame()->IsFullscreen())
 455     return;  // Nothing is visible, so don't bother to paint.
 456
 457   if (layout_->IsTitleBarCondensed())
 458     PaintMaximizedFrameBorder(canvas);
 459   else
 460     PaintRestoredFrameBorder(canvas);
 461
 462   // The window icon and title are painted by their respective views.
 463   /* TODO(pkasting):  If this window is active, we should also draw a drop
 464    * shadow on the title.  This is tricky, because we don't want to hardcode a
 465    * shadow color (since we want to work with various themes), but we can't
 466    * alpha-blend either (since the Windows text APIs don't really do this).
 467    * So we'd need to sample the background color at the right location and
 468    * synthesize a good shadow color. */
 469
 470   if (browser_view()->IsToolbarVisible())
 471     PaintToolbarBackground(canvas);
 472   if (!layout_->IsTitleBarCondensed())
 473     PaintRestoredClientEdge(canvas);
 474 }
 475
 476 // BrowserNonClientFrameView:
 477 bool OpaqueBrowserFrameView::ShouldPaintAsThemed() const {
 478   // Theme app and popup windows if |platform_observer_| wants it.
 479   return browser_view()->IsBrowserTypeNormal() ||
 480          platform_observer_->IsUsingSystemTheme();
 481 }
 482
 483 void OpaqueBrowserFrameView::UpdateNewAvatarButtonImpl() {
 484   UpdateNewAvatarButton(this, NewAvatarButton::THEMED_BUTTON);
 485 }
 486
 487 ///////////////////////////////////////////////////////////////////////////////
 488 // OpaqueBrowserFrameView, private:
 489
 490 // views::NonClientFrameView:
 491 bool OpaqueBrowserFrameView::DoesIntersectRect(const views::View* target,
 492                                                const gfx::Rect& rect) const {
 493   CHECK_EQ(target, this);
 494   if (!views::ViewTargeterDelegate::DoesIntersectRect(this, rect)) {
 495     // |rect| is outside OpaqueBrowserFrameView's bounds.
 496     return false;
 497   }
 498
 499   // If the rect is outside the bounds of the client area, claim it.
 500   gfx::RectF rect_in_client_view_coords_f(rect);
 501   View::ConvertRectToTarget(this, frame()->client_view(),
 502       &rect_in_client_view_coords_f);
 503   gfx::Rect rect_in_client_view_coords = gfx::ToEnclosingRect(
 504       rect_in_client_view_coords_f);
 505   if (!frame()->client_view()->HitTestRect(rect_in_client_view_coords))
 506     return true;
 507
 508   // Otherwise, claim |rect| only if it is above the bottom of the tabstrip in
 509   // a non-tab portion.
 510   TabStrip* tabstrip = browser_view()->tabstrip();
 511   if (!tabstrip || !browser_view()->IsTabStripVisible())
 512     return false;
 513
 514   gfx::RectF rect_in_tabstrip_coords_f(rect);
 515   View::ConvertRectToTarget(this, tabstrip, &rect_in_tabstrip_coords_f);
 516   gfx::Rect rect_in_tabstrip_coords = gfx::ToEnclosingRect(
 517       rect_in_tabstrip_coords_f);
 518   if (rect_in_tabstrip_coords.bottom() > tabstrip->GetLocalBounds().bottom()) {
 519     // |rect| is below the tabstrip.
 520     return false;
 521   }
 522
 523   if (tabstrip->HitTestRect(rect_in_tabstrip_coords)) {
 524     // Claim |rect| if it is in a non-tab portion of the tabstrip.
 525     return tabstrip->IsRectInWindowCaption(rect_in_tabstrip_coords);
 526   }
 527
 528   // We claim |rect| because it is above the bottom of the tabstrip, but
 529   // not in the tabstrip itself. In particular, the avatar label/button is left
 530   // of the tabstrip and the window controls are right of the tabstrip.
 531   return true;
 532 }
 533
 534 views::ImageButton* OpaqueBrowserFrameView::InitWindowCaptionButton(
 535     int normal_image_id,
 536     int hot_image_id,
 537     int pushed_image_id,
 538     int mask_image_id,
 539     int accessibility_string_id,
 540     ViewID view_id) {
 541   views::ImageButton* button = new views::ImageButton(this);
 542   ui::ThemeProvider* tp = frame()->GetThemeProvider();
 543   button->SetImage(views::CustomButton::STATE_NORMAL,
 544                    tp->GetImageSkiaNamed(normal_image_id));
 545   button->SetImage(views::CustomButton::STATE_HOVERED,
 546                    tp->GetImageSkiaNamed(hot_image_id));
 547   button->SetImage(views::CustomButton::STATE_PRESSED,
 548                    tp->GetImageSkiaNamed(pushed_image_id));
 549   if (browser_view()->IsBrowserTypeNormal()) {
 550     button->SetBackground(
 551         tp->GetColor(ThemeProperties::COLOR_BUTTON_BACKGROUND),
 552         tp->GetImageSkiaNamed(IDR_THEME_WINDOW_CONTROL_BACKGROUND),
 553         tp->GetImageSkiaNamed(mask_image_id));
 554   }
 555   button->SetAccessibleName(
 556       l10n_util::GetStringUTF16(accessibility_string_id));
 557   button->set_id(view_id);
 558   AddChildView(button);
 559   return button;
 560 }
 561
 562 int OpaqueBrowserFrameView::FrameBorderThickness(bool restored) const {
 563   return layout_->FrameBorderThickness(restored);
 564 }
 565
 566 int OpaqueBrowserFrameView::TopResizeHeight() const {
 567   return FrameBorderThickness(false) - kTopResizeAdjust;
 568 }
 569
 570 int OpaqueBrowserFrameView::NonClientBorderThickness() const {
 571   return layout_->NonClientBorderThickness();
 572 }
 573
 574 gfx::Rect OpaqueBrowserFrameView::IconBounds() const {
 575   return layout_->IconBounds();
 576 }
 577
 578 bool OpaqueBrowserFrameView::ShouldShowWindowTitleBar() const {
 579   // Do not show the custom title bar if the system title bar option is enabled.
 580   if (!frame()->UseCustomFrame())
 581     return false;
 582
 583   // Do not show caption buttons if the window manager is forcefully providing a
 584   // title bar (e.g., in Ubuntu Unity, if the window is maximized).
 585   if (!views::ViewsDelegate::views_delegate)
 586     return true;
 587   return !views::ViewsDelegate::views_delegate->WindowManagerProvidesTitleBar(
 588               IsMaximized());
 589 }
 590
 591 void OpaqueBrowserFrameView::PaintRestoredFrameBorder(gfx::Canvas* canvas) {
 592   frame_background_->set_frame_color(GetFrameColor());
 593   frame_background_->set_theme_image(GetFrameImage());
 594   frame_background_->set_theme_overlay_image(GetFrameOverlayImage());
 595   frame_background_->set_top_area_height(GetTopAreaHeight());
 596
 597   ui::ThemeProvider* tp = GetThemeProvider();
 598   frame_background_->SetSideImages(
 599       tp->GetImageSkiaNamed(IDR_WINDOW_LEFT_SIDE),
 600       tp->GetImageSkiaNamed(IDR_WINDOW_TOP_CENTER),
 601       tp->GetImageSkiaNamed(IDR_WINDOW_RIGHT_SIDE),
 602       tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_CENTER));
 603   frame_background_->SetCornerImages(
 604       tp->GetImageSkiaNamed(IDR_WINDOW_TOP_LEFT_CORNER),
 605       tp->GetImageSkiaNamed(IDR_WINDOW_TOP_RIGHT_CORNER),
 606       tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_LEFT_CORNER),
 607       tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_RIGHT_CORNER));
 608   frame_background_->PaintRestored(canvas, this);
 609
 610   // Note: When we don't have a toolbar, we need to draw some kind of bottom
 611   // edge here.  Because the App Window graphics we use for this have an
 612   // attached client edge and their sizing algorithm is a little involved, we do
 613   // all this in PaintRestoredClientEdge().
 614 }
 615
 616 void OpaqueBrowserFrameView::PaintMaximizedFrameBorder(gfx::Canvas* canvas) {
 617   ui::ThemeProvider* tp = GetThemeProvider();
 618   frame_background_->set_frame_color(GetFrameColor());
 619   frame_background_->set_theme_image(GetFrameImage());
 620   frame_background_->set_theme_overlay_image(GetFrameOverlayImage());
 621   frame_background_->set_top_area_height(GetTopAreaHeight());
 622 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 623   // The window manager typically shows a gradient in the native title bar (when
 624   // the system title bar pref is set, or when maximized on Ubuntu). Hide the
 625   // gradient in the tab strip (by shifting it up vertically) to avoid a
 626   // double-gradient effect.
 627   if (tp->UsingSystemTheme())
 628     frame_background_->set_maximized_top_inset(kGTKThemeCondensedFrameTopInset);
 629 #endif
 630
 631   frame_background_->PaintMaximized(canvas, this);
 632
 633   // TODO(jamescook): Migrate this into FrameBackground.
 634   if (!browser_view()->IsToolbarVisible()) {
 635     // There's no toolbar to edge the frame border, so we need to draw a bottom
 636     // edge.  The graphic we use for this has a built in client edge, so we clip
 637     // it off the bottom.
 638     gfx::ImageSkia* top_center = tp->GetImageSkiaNamed(IDR_APP_TOP_CENTER);
 639     int edge_height = top_center->height() - kClientEdgeThickness;
 640     canvas->TileImageInt(*top_center, 0,
 641         frame()->client_view()->y() - edge_height, width(), edge_height);
 642   }
 643 }
 644
 645 void OpaqueBrowserFrameView::PaintToolbarBackground(gfx::Canvas* canvas) {
 646   gfx::Rect toolbar_bounds(browser_view()->GetToolbarBounds());
 647   if (toolbar_bounds.IsEmpty())
 648     return;
 649   gfx::Point toolbar_origin(toolbar_bounds.origin());
 650   ConvertPointToTarget(browser_view(), this, &toolbar_origin);
 651   toolbar_bounds.set_origin(toolbar_origin);
 652
 653   int x = toolbar_bounds.x();
 654   int w = toolbar_bounds.width();
 655   int y = toolbar_bounds.y();
 656   int h = toolbar_bounds.height();
 657
 658   // Gross hack: We split the toolbar images into two pieces, since sometimes
 659   // (popup mode) the toolbar isn't tall enough to show the whole image.  The
 660   // split happens between the top shadow section and the bottom gradient
 661   // section so that we never break the gradient.
 662   int split_point = kFrameShadowThickness * 2;
 663   int bottom_y = y + split_point;
 664   ui::ThemeProvider* tp = GetThemeProvider();
 665   gfx::ImageSkia* toolbar_left = tp->GetImageSkiaNamed(
 666       IDR_CONTENT_TOP_LEFT_CORNER);
 667   int bottom_edge_height = std::min(toolbar_left->height(), h) - split_point;
 668
 669   // Split our canvas out so we can mask out the corners of the toolbar
 670   // without masking out the frame.
 671   canvas->SaveLayerAlpha(
 672       255, gfx::Rect(x - kClientEdgeThickness, y, w + kClientEdgeThickness * 3,
 673                      h));
 674
 675   // Paint the bottom rect.
 676   canvas->FillRect(gfx::Rect(x, bottom_y, w, bottom_edge_height),
 677                    tp->GetColor(ThemeProperties::COLOR_TOOLBAR));
 678
 679   // Tile the toolbar image starting at the frame edge on the left and where the
 680   // horizontal tabstrip is (or would be) on the top.
 681   gfx::ImageSkia* theme_toolbar = tp->GetImageSkiaNamed(IDR_THEME_TOOLBAR);
 682   canvas->TileImageInt(*theme_toolbar,
 683                        x + GetThemeBackgroundXInset(),
 684                        bottom_y - GetTopInset(),
 685                        x, bottom_y, w, theme_toolbar->height());
 686
 687   // Draw rounded corners for the tab.
 688   gfx::ImageSkia* toolbar_left_mask =
 689       tp->GetImageSkiaNamed(IDR_CONTENT_TOP_LEFT_CORNER_MASK);
 690   gfx::ImageSkia* toolbar_right_mask =
 691       tp->GetImageSkiaNamed(IDR_CONTENT_TOP_RIGHT_CORNER_MASK);
 692
 693   // We mask out the corners by using the DestinationIn transfer mode,
 694   // which keeps the RGB pixels from the destination and the alpha from
 695   // the source.
 696   SkPaint paint;
 697   paint.setXfermodeMode(SkXfermode::kDstIn_Mode);
 698
 699   // Mask the left edge.
 700   int left_x = x - kContentEdgeShadowThickness;
 701   canvas->DrawImageInt(*toolbar_left_mask, 0, 0, toolbar_left_mask->width(),
 702                        split_point, left_x, y, toolbar_left_mask->width(),
 703                        split_point, false, paint);
 704   canvas->DrawImageInt(*toolbar_left_mask, 0,
 705       toolbar_left_mask->height() - bottom_edge_height,
 706       toolbar_left_mask->width(), bottom_edge_height, left_x, bottom_y,
 707       toolbar_left_mask->width(), bottom_edge_height, false, paint);
 708
 709   // Mask the right edge.
 710   int right_x =
 711       x + w - toolbar_right_mask->width() + kContentEdgeShadowThickness;
 712   canvas->DrawImageInt(*toolbar_right_mask, 0, 0, toolbar_right_mask->width(),
 713                        split_point, right_x, y, toolbar_right_mask->width(),
 714                        split_point, false, paint);
 715   canvas->DrawImageInt(*toolbar_right_mask, 0,
 716       toolbar_right_mask->height() - bottom_edge_height,
 717       toolbar_right_mask->width(), bottom_edge_height, right_x, bottom_y,
 718       toolbar_right_mask->width(), bottom_edge_height, false, paint);
 719   canvas->Restore();
 720
 721   canvas->DrawImageInt(*toolbar_left, 0, 0, toolbar_left->width(), split_point,
 722                        left_x, y, toolbar_left->width(), split_point, false);
 723   canvas->DrawImageInt(*toolbar_left, 0,
 724       toolbar_left->height() - bottom_edge_height, toolbar_left->width(),
 725       bottom_edge_height, left_x, bottom_y, toolbar_left->width(),
 726       bottom_edge_height, false);
 727
 728   gfx::ImageSkia* toolbar_center =
 729       tp->GetImageSkiaNamed(IDR_CONTENT_TOP_CENTER);
 730   canvas->TileImageInt(*toolbar_center, 0, 0, left_x + toolbar_left->width(),
 731       y, right_x - (left_x + toolbar_left->width()),
 732       split_point);
 733
 734   gfx::ImageSkia* toolbar_right = tp->GetImageSkiaNamed(
 735       IDR_CONTENT_TOP_RIGHT_CORNER);
 736   canvas->DrawImageInt(*toolbar_right, 0, 0, toolbar_right->width(),
 737       split_point, right_x, y, toolbar_right->width(), split_point, false);
 738   canvas->DrawImageInt(*toolbar_right, 0,
 739       toolbar_right->height() - bottom_edge_height, toolbar_right->width(),
 740       bottom_edge_height, right_x, bottom_y, toolbar_right->width(),
 741       bottom_edge_height, false);
 742
 743   // Draw the content/toolbar separator.
 744   canvas->FillRect(
 745       gfx::Rect(x + kClientEdgeThickness,
 746                 toolbar_bounds.bottom() - kClientEdgeThickness,
 747                 w - (2 * kClientEdgeThickness),
 748                 kClientEdgeThickness),
 749       ThemeProperties::GetDefaultColor(
 750           ThemeProperties::COLOR_TOOLBAR_SEPARATOR));
 751 }
 752
 753 void OpaqueBrowserFrameView::PaintRestoredClientEdge(gfx::Canvas* canvas) {
 754   ui::ThemeProvider* tp = GetThemeProvider();
 755   int client_area_top = frame()->client_view()->y();
 756   int image_top = client_area_top;
 757
 758   gfx::Rect client_area_bounds =
 759       layout_->CalculateClientAreaBounds(width(), height());
 760   SkColor toolbar_color = tp->GetColor(ThemeProperties::COLOR_TOOLBAR);
 761
 762   if (browser_view()->IsToolbarVisible()) {
 763     // The client edge images always start below the toolbar corner images.  The
 764     // client edge filled rects start there or at the bottom of the toolbar,
 765     // whichever is shorter.
 766     gfx::Rect toolbar_bounds(browser_view()->GetToolbarBounds());
 767
 768     gfx::ImageSkia* content_top_left_corner =
 769         tp->GetImageSkiaNamed(IDR_CONTENT_TOP_LEFT_CORNER);
 770     // TODO(oshima): Sanity checks for crbug.com/374273. Remove when it's fixed.
 771     CHECK(content_top_left_corner);
 772     CHECK(!content_top_left_corner->isNull());
 773
 774     image_top += toolbar_bounds.y() + content_top_left_corner->height();
 775     client_area_top = std::min(image_top,
 776         client_area_top + toolbar_bounds.bottom() - kClientEdgeThickness);
 777   } else if (!browser_view()->IsTabStripVisible()) {
 778     // The toolbar isn't going to draw a client edge for us, so draw one
 779     // ourselves.
 780     gfx::ImageSkia* top_left = tp->GetImageSkiaNamed(IDR_APP_TOP_LEFT);
 781     gfx::ImageSkia* top_center = tp->GetImageSkiaNamed(IDR_APP_TOP_CENTER);
 782     gfx::ImageSkia* top_right = tp->GetImageSkiaNamed(IDR_APP_TOP_RIGHT);
 783     int top_edge_y = client_area_top - top_center->height();
 784     int height = client_area_top - top_edge_y;
 785
 786     canvas->DrawImageInt(*top_left, 0, 0, top_left->width(), height,
 787         client_area_bounds.x() - top_left->width(), top_edge_y,
 788         top_left->width(), height, false);
 789     canvas->TileImageInt(*top_center, 0, 0, client_area_bounds.x(), top_edge_y,
 790       client_area_bounds.width(), std::min(height, top_center->height()));
 791     canvas->DrawImageInt(*top_right, 0, 0, top_right->width(), height,
 792         client_area_bounds.right(), top_edge_y,
 793         top_right->width(), height, false);
 794
 795     // Draw the toolbar color across the top edge.
 796     canvas->FillRect(gfx::Rect(client_area_bounds.x() - kClientEdgeThickness,
 797         client_area_top - kClientEdgeThickness,
 798         client_area_bounds.width() + (2 * kClientEdgeThickness),
 799         kClientEdgeThickness), toolbar_color);
 800   }
 801
 802   int client_area_bottom =
 803       std::max(client_area_top, height() - NonClientBorderThickness());
 804   int image_height = client_area_bottom - image_top;
 805
 806   // Draw the client edge images.
 807   gfx::ImageSkia* right = tp->GetImageSkiaNamed(IDR_CONTENT_RIGHT_SIDE);
 808   canvas->TileImageInt(*right, client_area_bounds.right(), image_top,
 809                        right->width(), image_height);
 810   canvas->DrawImageInt(
 811       *tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_RIGHT_CORNER),
 812       client_area_bounds.right(), client_area_bottom);
 813   gfx::ImageSkia* bottom = tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_CENTER);
 814   canvas->TileImageInt(*bottom, client_area_bounds.x(),
 815       client_area_bottom, client_area_bounds.width(),
 816       bottom->height());
 817   gfx::ImageSkia* bottom_left =
 818       tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_LEFT_CORNER);
 819   canvas->DrawImageInt(*bottom_left,
 820       client_area_bounds.x() - bottom_left->width(), client_area_bottom);
 821   gfx::ImageSkia* left = tp->GetImageSkiaNamed(IDR_CONTENT_LEFT_SIDE);
 822   canvas->TileImageInt(*left, client_area_bounds.x() - left->width(),
 823                        image_top, left->width(), image_height);
 824
 825   // Draw the toolbar color so that the client edges show the right color even
 826   // where not covered by the toolbar image.  NOTE: We do this after drawing the
 827   // images because the images are meant to alpha-blend atop the frame whereas
 828   // these rects are meant to be fully opaque, without anything overlaid.
 829   canvas->FillRect(gfx::Rect(client_area_bounds.x() - kClientEdgeThickness,
 830       client_area_top, kClientEdgeThickness,
 831       client_area_bottom + kClientEdgeThickness - client_area_top),
 832        toolbar_color);
 833   canvas->FillRect(gfx::Rect(client_area_bounds.x(), client_area_bottom,
 834                              client_area_bounds.width(), kClientEdgeThickness),
 835                    toolbar_color);
 836   canvas->FillRect(gfx::Rect(client_area_bounds.right(), client_area_top,
 837       kClientEdgeThickness,
 838       client_area_bottom + kClientEdgeThickness - client_area_top),
 839       toolbar_color);
 840 }