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/theme_image_mapper.h"
  26 #include "chrome/browser/ui/views/toolbar/toolbar_view.h"
  27 #include "chrome/grit/generated_resources.h"
  28 #include "components/signin/core/common/profile_management_switches.h"
  29 #include "content/public/browser/notification_service.h"
  30 #include "content/public/browser/web_contents.h"
  31 #include "grit/theme_resources.h"
  32 #include "ui/accessibility/ax_view_state.h"
  33 #include "ui/base/hit_test.h"
  34 #include "ui/base/l10n/l10n_util.h"
  35 #include "ui/base/resource/resource_bundle.h"
  36 #include "ui/base/theme_provider.h"
  37 #include "ui/gfx/canvas.h"
  38 #include "ui/gfx/font_list.h"
  39 #include "ui/gfx/geometry/rect_conversions.h"
  40 #include "ui/gfx/image/image.h"
  41 #include "ui/gfx/image/image_skia.h"
  42 #include "ui/gfx/path.h"
  43 #include "ui/resources/grit/ui_resources.h"
  44 #include "ui/views/controls/button/image_button.h"
  45 #include "ui/views/controls/image_view.h"
  46 #include "ui/views/controls/label.h"
  47 #include "ui/views/layout/layout_constants.h"
  48 #include "ui/views/views_delegate.h"
  49 #include "ui/views/widget/root_view.h"
  50 #include "ui/views/window/frame_background.h"
  51 #include "ui/views/window/window_shape.h"
  52
  53 #if defined(ENABLE_SUPERVISED_USERS)
  54 #include "chrome/browser/ui/views/profiles/supervised_user_avatar_label.h"
  55 #endif
  56
  57 #if defined(OS_LINUX)
  58 #include "ui/views/controls/menu/menu_runner.h"
  59 #endif
  60
  61 using content::WebContents;
  62
  63 namespace {
  64
  65 // While resize areas on Windows are normally the same size as the window
  66 // borders, our top area is shrunk by 1 px to make it easier to move the window
  67 // around with our thinner top grabbable strip.  (Incidentally, our side and
  68 // bottom resize areas don't match the frame border thickness either -- they
  69 // span the whole nonclient area, so there's no "dead zone" for the mouse.)
  70 const int kTopResizeAdjust = 1;
  71
  72 // In the window corners, the resize areas don't actually expand bigger, but the
  73 // 16 px at the end of each edge triggers diagonal resizing.
  74 const int kResizeAreaCornerSize = 16;
  75
  76 // The content left/right images have a shadow built into them.
  77 const int kContentEdgeShadowThickness = 2;
  78
  79 // The icon never shrinks below 16 px on a side.
  80 const int kIconMinimumSize = 16;
  81
  82 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
  83 // The number of pixels to move the frame background image upwards when using
  84 // the GTK+ theme and the titlebar is condensed.
  85 const int kGTKThemeCondensedFrameTopInset = 15;
  86 #endif
  87
  88 }  // namespace
  89
  90 ///////////////////////////////////////////////////////////////////////////////
  91 // OpaqueBrowserFrameView, public:
  92
  93 OpaqueBrowserFrameView::OpaqueBrowserFrameView(BrowserFrame* frame,
  94                                                BrowserView* browser_view)
  95     : BrowserNonClientFrameView(frame, browser_view),
  96       layout_(new OpaqueBrowserFrameViewLayout(this)),
  97       minimize_button_(nullptr),
  98       maximize_button_(nullptr),
  99       restore_button_(nullptr),
 100       close_button_(nullptr),
 101       window_icon_(nullptr),
 102       window_title_(nullptr),
 103       frame_background_(new views::FrameBackground()) {
 104   SetLayoutManager(layout_);
 105
 106   minimize_button_ = InitWindowCaptionButton(IDR_MINIMIZE,
 107                                              IDR_MINIMIZE_H,
 108                                              IDR_MINIMIZE_P,
 109                                              IDR_MINIMIZE_BUTTON_MASK,
 110                                              IDS_ACCNAME_MINIMIZE,
 111                                              VIEW_ID_MINIMIZE_BUTTON);
 112   maximize_button_ = InitWindowCaptionButton(IDR_MAXIMIZE,
 113                                              IDR_MAXIMIZE_H,
 114                                              IDR_MAXIMIZE_P,
 115                                              IDR_MAXIMIZE_BUTTON_MASK,
 116                                              IDS_ACCNAME_MAXIMIZE,
 117                                              VIEW_ID_MAXIMIZE_BUTTON);
 118   restore_button_ = InitWindowCaptionButton(IDR_RESTORE,
 119                                             IDR_RESTORE_H,
 120                                             IDR_RESTORE_P,
 121                                             IDR_RESTORE_BUTTON_MASK,
 122                                             IDS_ACCNAME_RESTORE,
 123                                             VIEW_ID_RESTORE_BUTTON);
 124   close_button_ = InitWindowCaptionButton(IDR_CLOSE,
 125                                           IDR_CLOSE_H,
 126                                           IDR_CLOSE_P,
 127                                           IDR_CLOSE_BUTTON_MASK,
 128                                           IDS_ACCNAME_CLOSE,
 129                                           VIEW_ID_CLOSE_BUTTON);
 130
 131   // Initializing the TabIconView is expensive, so only do it if we need to.
 132   if (browser_view->ShouldShowWindowIcon()) {
 133     window_icon_ = new TabIconView(this, this);
 134     window_icon_->set_is_light(true);
 135     window_icon_->set_id(VIEW_ID_WINDOW_ICON);
 136     AddChildView(window_icon_);
 137     window_icon_->Update();
 138   }
 139
 140   window_title_ = new views::Label(
 141       browser_view->GetWindowTitle(),
 142       gfx::FontList(BrowserFrame::GetTitleFontList()));
 143   window_title_->SetVisible(browser_view->ShouldShowWindowTitle());
 144   window_title_->SetEnabledColor(SK_ColorWHITE);
 145   window_title_->SetSubpixelRenderingEnabled(false);
 146   window_title_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
 147   window_title_->set_id(VIEW_ID_WINDOW_TITLE);
 148   AddChildView(window_title_);
 149
 150   UpdateAvatar();
 151
 152   platform_observer_.reset(OpaqueBrowserFrameViewPlatformSpecific::Create(
 153       this, layout_, browser_view->browser()->profile()));
 154 }
 155
 156 OpaqueBrowserFrameView::~OpaqueBrowserFrameView() {
 157 }
 158
 159 ///////////////////////////////////////////////////////////////////////////////
 160 // OpaqueBrowserFrameView, BrowserNonClientFrameView implementation:
 161
 162 gfx::Rect OpaqueBrowserFrameView::GetBoundsForTabStrip(
 163     views::View* tabstrip) const {
 164   if (!tabstrip)
 165     return gfx::Rect();
 166
 167   return layout_->GetBoundsForTabStrip(tabstrip->GetPreferredSize(), width());
 168 }
 169
 170 int OpaqueBrowserFrameView::GetTopInset() const {
 171   return browser_view()->IsTabStripVisible() ?
 172       layout_->GetTabStripInsetsTop(false) :
 173       layout_->NonClientTopBorderHeight(false);
 174 }
 175
 176 int OpaqueBrowserFrameView::GetThemeBackgroundXInset() const {
 177   return 0;
 178 }
 179
 180 void OpaqueBrowserFrameView::UpdateThrobber(bool running) {
 181   // TODO(robliao): Remove ScopedTracker below once crbug.com/461137 is fixed.
 182   tracked_objects::ScopedTracker tracking_profile(
 183       FROM_HERE_WITH_EXPLICIT_FUNCTION(
 184           "461137 OpaqueBrowserFrameView::UpdateThrobber"));
 185
 186   if (window_icon_)
 187     window_icon_->Update();
 188 }
 189
 190 gfx::Size OpaqueBrowserFrameView::GetMinimumSize() const {
 191   return layout_->GetMinimumSize(width());
 192 }
 193
 194 ///////////////////////////////////////////////////////////////////////////////
 195 // OpaqueBrowserFrameView, views::NonClientFrameView implementation:
 196
 197 gfx::Rect OpaqueBrowserFrameView::GetBoundsForClientView() const {
 198   return layout_->client_view_bounds();
 199 }
 200
 201 gfx::Rect OpaqueBrowserFrameView::GetWindowBoundsForClientBounds(
 202     const gfx::Rect& client_bounds) const {
 203   return layout_->GetWindowBoundsForClientBounds(client_bounds);
 204 }
 205
 206 bool OpaqueBrowserFrameView::IsWithinAvatarMenuButtons(
 207     const gfx::Point& point) const {
 208   if (avatar_button() &&
 209      avatar_button()->GetMirroredBounds().Contains(point)) {
 210     return true;
 211   }
 212   if (new_avatar_button() &&
 213      new_avatar_button()->GetMirroredBounds().Contains(point)) {
 214     return true;
 215   }
 216
 217   return false;
 218 }
 219
 220 int OpaqueBrowserFrameView::NonClientHitTest(const gfx::Point& point) {
 221   if (!bounds().Contains(point))
 222     return HTNOWHERE;
 223
 224   // See if the point is within the avatar menu button.
 225   if (IsWithinAvatarMenuButtons(point))
 226     return HTCLIENT;
 227 #if defined(ENABLE_SUPERVISED_USERS)
 228   // ...or within the avatar label, if it's a supervised user.
 229   if ((supervised_user_avatar_label() &&
 230        supervised_user_avatar_label()->GetMirroredBounds().Contains(point)))
 231     return HTCLIENT;
 232 #endif
 233
 234   int frame_component = frame()->client_view()->NonClientHitTest(point);
 235
 236   // See if we're in the sysmenu region.  We still have to check the tabstrip
 237   // first so that clicks in a tab don't get treated as sysmenu clicks.
 238   gfx::Rect sysmenu_rect(IconBounds());
 239   // In maximized mode we extend the rect to the screen corner to take advantage
 240   // of Fitts' Law.
 241   if (layout_->IsTitleBarCondensed())
 242     sysmenu_rect.SetRect(0, 0, sysmenu_rect.right(), sysmenu_rect.bottom());
 243   sysmenu_rect.set_x(GetMirroredXForRect(sysmenu_rect));
 244   if (sysmenu_rect.Contains(point))
 245     return (frame_component == HTCLIENT) ? HTCLIENT : HTSYSMENU;
 246
 247   if (frame_component != HTNOWHERE)
 248     return frame_component;
 249
 250   // Then see if the point is within any of the window controls.
 251   if (close_button_ && close_button_->visible() &&
 252       close_button_->GetMirroredBounds().Contains(point))
 253     return HTCLOSE;
 254   if (restore_button_ && restore_button_->visible() &&
 255       restore_button_->GetMirroredBounds().Contains(point))
 256     return HTMAXBUTTON;
 257   if (maximize_button_ && maximize_button_->visible() &&
 258       maximize_button_->GetMirroredBounds().Contains(point))
 259     return HTMAXBUTTON;
 260   if (minimize_button_ && minimize_button_->visible() &&
 261       minimize_button_->GetMirroredBounds().Contains(point))
 262     return HTMINBUTTON;
 263
 264   views::WidgetDelegate* delegate = frame()->widget_delegate();
 265   if (!delegate) {
 266     LOG(WARNING) << "delegate is null, returning safe default.";
 267     return HTCAPTION;
 268   }
 269   int window_component = GetHTComponentForFrame(point, TopResizeHeight(),
 270       NonClientBorderThickness(), kResizeAreaCornerSize, kResizeAreaCornerSize,
 271       delegate->CanResize());
 272   // Fall back to the caption if no other component matches.
 273   return (window_component == HTNOWHERE) ? HTCAPTION : window_component;
 274 }
 275
 276 void OpaqueBrowserFrameView::GetWindowMask(const gfx::Size& size,
 277                                            gfx::Path* window_mask) {
 278   DCHECK(window_mask);
 279
 280   if (layout_->IsTitleBarCondensed() || frame()->IsFullscreen())
 281     return;
 282
 283   views::GetDefaultWindowMask(size, window_mask);
 284 }
 285
 286 void OpaqueBrowserFrameView::ResetWindowControls() {
 287   restore_button_->SetState(views::CustomButton::STATE_NORMAL);
 288   minimize_button_->SetState(views::CustomButton::STATE_NORMAL);
 289   maximize_button_->SetState(views::CustomButton::STATE_NORMAL);
 290   // The close button isn't affected by this constraint.
 291 }
 292
 293 void OpaqueBrowserFrameView::UpdateWindowIcon() {
 294   if (window_icon_)
 295     window_icon_->SchedulePaint();
 296 }
 297
 298 void OpaqueBrowserFrameView::UpdateWindowTitle() {
 299   if (!frame()->IsFullscreen())
 300     window_title_->SchedulePaint();
 301 }
 302
 303 void OpaqueBrowserFrameView::SizeConstraintsChanged() {
 304 }
 305
 306 ///////////////////////////////////////////////////////////////////////////////
 307 // OpaqueBrowserFrameView, views::View overrides:
 308
 309 void OpaqueBrowserFrameView::GetAccessibleState(
 310     ui::AXViewState* state) {
 311   state->role = ui::AX_ROLE_TITLE_BAR;
 312 }
 313
 314 ///////////////////////////////////////////////////////////////////////////////
 315 // OpaqueBrowserFrameView, views::ButtonListener implementation:
 316
 317 void OpaqueBrowserFrameView::ButtonPressed(views::Button* sender,
 318                                            const ui::Event& event) {
 319   if (sender == minimize_button_) {
 320     frame()->Minimize();
 321   } else if (sender == maximize_button_) {
 322     frame()->Maximize();
 323   } else if (sender == restore_button_) {
 324     frame()->Restore();
 325   } else if (sender == close_button_) {
 326     frame()->Close();
 327   } else if (sender == new_avatar_button()) {
 328     BrowserWindow::AvatarBubbleMode mode =
 329         BrowserWindow::AVATAR_BUBBLE_MODE_DEFAULT;
 330     if (event.IsMouseEvent() &&
 331         static_cast<const ui::MouseEvent&>(event).IsRightMouseButton()) {
 332       mode = BrowserWindow::AVATAR_BUBBLE_MODE_FAST_USER_SWITCH;
 333     }
 334     browser_view()->ShowAvatarBubbleFromAvatarButton(
 335         mode,
 336         signin::ManageAccountsParams());
 337   }
 338 }
 339
 340 void OpaqueBrowserFrameView::OnMenuButtonClicked(views::View* source,
 341                                                  const gfx::Point& point) {
 342 #if defined(OS_LINUX)
 343   views::MenuRunner menu_runner(frame()->GetSystemMenuModel(),
 344                                 views::MenuRunner::HAS_MNEMONICS);
 345   ignore_result(menu_runner.RunMenuAt(browser_view()->GetWidget(),
 346                                       window_icon_,
 347                                       window_icon_->GetBoundsInScreen(),
 348                                       views::MENU_ANCHOR_TOPLEFT,
 349                                       ui::MENU_SOURCE_MOUSE));
 350 #endif
 351 }
 352
 353 ///////////////////////////////////////////////////////////////////////////////
 354 // OpaqueBrowserFrameView, TabIconView::TabContentsProvider implementation:
 355
 356 bool OpaqueBrowserFrameView::ShouldTabIconViewAnimate() const {
 357   // This function is queried during the creation of the window as the
 358   // TabIconView we host is initialized, so we need to null check the selected
 359   // WebContents because in this condition there is not yet a selected tab.
 360   WebContents* current_tab = browser_view()->GetActiveWebContents();
 361   return current_tab ? current_tab->IsLoading() : false;
 362 }
 363
 364 gfx::ImageSkia OpaqueBrowserFrameView::GetFaviconForTabIconView() {
 365   views::WidgetDelegate* delegate = frame()->widget_delegate();
 366   if (!delegate) {
 367     LOG(WARNING) << "delegate is null, returning safe default.";
 368     return gfx::ImageSkia();
 369   }
 370   return delegate->GetWindowIcon();
 371 }
 372
 373 ///////////////////////////////////////////////////////////////////////////////
 374 // OpaqueBrowserFrameView, OpaqueBrowserFrameViewLayoutDelegate implementation:
 375
 376 bool OpaqueBrowserFrameView::ShouldShowWindowIcon() const {
 377   views::WidgetDelegate* delegate = frame()->widget_delegate();
 378   return ShouldShowWindowTitleBar() && delegate &&
 379          delegate->ShouldShowWindowIcon();
 380 }
 381
 382 bool OpaqueBrowserFrameView::ShouldShowWindowTitle() const {
 383   // |delegate| may be null if called from callback of InputMethodChanged while
 384   // a window is being destroyed.
 385   // See more discussion at http://crosbug.com/8958
 386   views::WidgetDelegate* delegate = frame()->widget_delegate();
 387   return ShouldShowWindowTitleBar() && delegate &&
 388          delegate->ShouldShowWindowTitle();
 389 }
 390
 391 base::string16 OpaqueBrowserFrameView::GetWindowTitle() const {
 392   return frame()->widget_delegate()->GetWindowTitle();
 393 }
 394
 395 int OpaqueBrowserFrameView::GetIconSize() const {
 396 #if defined(OS_WIN)
 397   // This metric scales up if either the titlebar height or the titlebar font
 398   // size are increased.
 399   return GetSystemMetrics(SM_CYSMICON);
 400 #else
 401   return std::max(BrowserFrame::GetTitleFontList().GetHeight(),
 402                   kIconMinimumSize);
 403 #endif
 404 }
 405
 406 bool OpaqueBrowserFrameView::ShouldLeaveOffsetNearTopBorder() const {
 407   return frame()->ShouldLeaveOffsetNearTopBorder();
 408 }
 409
 410 gfx::Size OpaqueBrowserFrameView::GetBrowserViewMinimumSize() const {
 411   return browser_view()->GetMinimumSize();
 412 }
 413
 414 bool OpaqueBrowserFrameView::ShouldShowCaptionButtons() const {
 415   return ShouldShowWindowTitleBar();
 416 }
 417
 418 bool OpaqueBrowserFrameView::ShouldShowAvatar() const {
 419   return browser_view()->ShouldShowAvatar();
 420 }
 421
 422 bool OpaqueBrowserFrameView::IsRegularOrGuestSession() const {
 423   return browser_view()->IsRegularOrGuestSession();
 424 }
 425
 426 gfx::ImageSkia OpaqueBrowserFrameView::GetOTRAvatarIcon() const {
 427   return browser_view()->GetOTRAvatarIcon();
 428 }
 429
 430 bool OpaqueBrowserFrameView::IsMaximized() const {
 431   return frame()->IsMaximized();
 432 }
 433
 434 bool OpaqueBrowserFrameView::IsMinimized() const {
 435   return frame()->IsMinimized();
 436 }
 437
 438 bool OpaqueBrowserFrameView::IsFullscreen() const {
 439   return frame()->IsFullscreen();
 440 }
 441
 442 bool OpaqueBrowserFrameView::IsTabStripVisible() const {
 443   return browser_view()->IsTabStripVisible();
 444 }
 445
 446 int OpaqueBrowserFrameView::GetTabStripHeight() const {
 447   return browser_view()->GetTabStripHeight();
 448 }
 449
 450 gfx::Size OpaqueBrowserFrameView::GetTabstripPreferredSize() const {
 451   gfx::Size s = browser_view()->tabstrip()->GetPreferredSize();
 452   return s;
 453 }
 454
 455 ///////////////////////////////////////////////////////////////////////////////
 456 // OpaqueBrowserFrameView, protected:
 457
 458 // views::View:
 459 void OpaqueBrowserFrameView::OnPaint(gfx::Canvas* canvas) {
 460   if (frame()->IsFullscreen())
 461     return;  // Nothing is visible, so don't bother to paint.
 462
 463   if (layout_->IsTitleBarCondensed())
 464     PaintMaximizedFrameBorder(canvas);
 465   else
 466     PaintRestoredFrameBorder(canvas);
 467
 468   // The window icon and title are painted by their respective views.
 469   /* TODO(pkasting):  If this window is active, we should also draw a drop
 470    * shadow on the title.  This is tricky, because we don't want to hardcode a
 471    * shadow color (since we want to work with various themes), but we can't
 472    * alpha-blend either (since the Windows text APIs don't really do this).
 473    * So we'd need to sample the background color at the right location and
 474    * synthesize a good shadow color. */
 475
 476   if (browser_view()->IsToolbarVisible())
 477     PaintToolbarBackground(canvas);
 478   if (!layout_->IsTitleBarCondensed())
 479     PaintRestoredClientEdge(canvas);
 480 }
 481
 482 // BrowserNonClientFrameView:
 483 void OpaqueBrowserFrameView::UpdateNewStyleAvatar() {
 484   UpdateNewStyleAvatarInfo(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 }
 841
 842 SkColor OpaqueBrowserFrameView::GetFrameColor() const {
 843   bool is_incognito = browser_view()->IsOffTheRecord();
 844   ThemeProperties::OverwritableByUserThemeProperty color_id;
 845   if (ShouldPaintAsActive()) {
 846     color_id = is_incognito ?
 847                ThemeProperties::COLOR_FRAME_INCOGNITO :
 848                ThemeProperties::COLOR_FRAME;
 849   } else {
 850     color_id = is_incognito ?
 851                ThemeProperties::COLOR_FRAME_INCOGNITO_INACTIVE :
 852                ThemeProperties::COLOR_FRAME_INACTIVE;
 853   }
 854
 855   if (browser_view()->IsBrowserTypeNormal() ||
 856       platform_observer_->IsUsingSystemTheme()) {
 857     return GetThemeProvider()->GetColor(color_id);
 858   }
 859
 860   // Never theme app and popup windows unless the |platform_observer_|
 861   // requested an override.
 862   return ThemeProperties::GetDefaultColor(color_id);
 863 }
 864
 865 gfx::ImageSkia* OpaqueBrowserFrameView::GetFrameImage() const {
 866   bool is_incognito = browser_view()->IsOffTheRecord();
 867   int resource_id;
 868   if (browser_view()->IsBrowserTypeNormal()) {
 869     if (ShouldPaintAsActive()) {
 870       resource_id = is_incognito ?
 871           IDR_THEME_FRAME_INCOGNITO : IDR_THEME_FRAME;
 872     } else {
 873       resource_id = is_incognito ?
 874           IDR_THEME_FRAME_INCOGNITO_INACTIVE : IDR_THEME_FRAME_INACTIVE;
 875     }
 876     return GetThemeProvider()->GetImageSkiaNamed(resource_id);
 877   }
 878   if (ShouldPaintAsActive()) {
 879     resource_id = is_incognito ?
 880         IDR_THEME_FRAME_INCOGNITO : IDR_FRAME;
 881   } else {
 882     resource_id = is_incognito ?
 883         IDR_THEME_FRAME_INCOGNITO_INACTIVE : IDR_THEME_FRAME_INACTIVE;
 884   }
 885
 886   if (platform_observer_->IsUsingSystemTheme()) {
 887     // We want to use theme images provided by the system theme when enabled,
 888     // even if we are an app or popup window.
 889     return GetThemeProvider()->GetImageSkiaNamed(resource_id);
 890   }
 891
 892   // Otherwise, never theme app and popup windows.
 893   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
 894   return rb.GetImageSkiaNamed(chrome::MapThemeImage(
 895       chrome::GetHostDesktopTypeForNativeWindow(
 896           browser_view()->GetNativeWindow()),
 897       resource_id));
 898 }
 899
 900 gfx::ImageSkia* OpaqueBrowserFrameView::GetFrameOverlayImage() const {
 901   ui::ThemeProvider* tp = GetThemeProvider();
 902   if (tp->HasCustomImage(IDR_THEME_FRAME_OVERLAY) &&
 903       browser_view()->IsBrowserTypeNormal() &&
 904       !browser_view()->IsOffTheRecord()) {
 905     return tp->GetImageSkiaNamed(ShouldPaintAsActive() ?
 906         IDR_THEME_FRAME_OVERLAY : IDR_THEME_FRAME_OVERLAY_INACTIVE);
 907   }
 908   return nullptr;
 909 }
 910
 911 int OpaqueBrowserFrameView::GetTopAreaHeight() const {
 912   gfx::ImageSkia* frame_image = GetFrameImage();
 913   int top_area_height = frame_image->height();
 914   if (browser_view()->IsTabStripVisible()) {
 915     top_area_height = std::max(top_area_height,
 916       GetBoundsForTabStrip(browser_view()->tabstrip()).bottom());
 917   }
 918   return top_area_height;
 919 }