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/themes/theme_properties.h"
  16 #include "chrome/browser/ui/views/frame/browser_frame.h"
  17 #include "chrome/browser/ui/views/frame/browser_view.h"
  18 #include "chrome/browser/ui/views/frame/opaque_browser_frame_view_layout.h"
  19 #include "chrome/browser/ui/views/frame/opaque_browser_frame_view_platform_specific.h"
  20 #include "chrome/browser/ui/views/profiles/avatar_menu_button.h"
  21 #include "chrome/browser/ui/views/profiles/new_avatar_button.h"
  22 #include "chrome/browser/ui/views/tab_icon_view.h"
  23 #include "chrome/browser/ui/views/tabs/tab_strip.h"
  24 #include "chrome/browser/ui/views/toolbar/toolbar_view.h"
  25 #include "chrome/grit/generated_resources.h"
  26 #include "components/signin/core/browser/signin_header_helper.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/material_design/material_design_controller.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/resources/grit/views_resources.h"
  49 #include "ui/views/views_delegate.h"
  50 #include "ui/views/widget/root_view.h"
  51 #include "ui/views/window/frame_background.h"
  52 #include "ui/views/window/window_shape.h"
  53
  54 #if defined(ENABLE_SUPERVISED_USERS)
  55 #include "chrome/browser/ui/views/profiles/supervised_user_avatar_label.h"
  56 #endif
  57
  58 #if defined(OS_LINUX)
  59 #include "ui/views/controls/menu/menu_runner.h"
  60 #endif
  61
  62 using content::WebContents;
  63
  64 namespace {
  65
  66 // While resize areas on Windows are normally the same size as the window
  67 // borders, our top area is shrunk by 1 px to make it easier to move the window
  68 // around with our thinner top grabbable strip.  (Incidentally, our side and
  69 // bottom resize areas don't match the frame border thickness either -- they
  70 // span the whole nonclient area, so there's no "dead zone" for the mouse.)
  71 const int kTopResizeAdjust = 1;
  72
  73 // In the window corners, the resize areas don't actually expand bigger, but the
  74 // 16 px at the end of each edge triggers diagonal resizing.
  75 const int kResizeAreaCornerSize = 16;
  76
  77 // The content left/right images have a shadow built into them.
  78 const int kContentEdgeShadowThickness = 2;
  79
  80 #if !defined(OS_WIN)
  81 // The icon never shrinks below 16 px on a side.
  82 const int kIconMinimumSize = 16;
  83 #endif
  84
  85 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
  86 // The number of pixels to move the frame background image upwards when using
  87 // the GTK+ theme and the titlebar is condensed.
  88 const int kGTKThemeCondensedFrameTopInset = 15;
  89 #endif
  90
  91 }  // namespace
  92
  93 ///////////////////////////////////////////////////////////////////////////////
  94 // OpaqueBrowserFrameView, public:
  95
  96 OpaqueBrowserFrameView::OpaqueBrowserFrameView(BrowserFrame* frame,
  97                                                BrowserView* browser_view)
  98     : BrowserNonClientFrameView(frame, browser_view),
  99       layout_(new OpaqueBrowserFrameViewLayout(this)),
 100       minimize_button_(nullptr),
 101       maximize_button_(nullptr),
 102       restore_button_(nullptr),
 103       close_button_(nullptr),
 104       window_icon_(nullptr),
 105       window_title_(nullptr),
 106       frame_background_(new views::FrameBackground()) {
 107   SetLayoutManager(layout_);
 108
 109   minimize_button_ = InitWindowCaptionButton(IDR_MINIMIZE,
 110                                              IDR_MINIMIZE_H,
 111                                              IDR_MINIMIZE_P,
 112                                              IDR_MINIMIZE_BUTTON_MASK,
 113                                              IDS_ACCNAME_MINIMIZE,
 114                                              VIEW_ID_MINIMIZE_BUTTON);
 115   maximize_button_ = InitWindowCaptionButton(IDR_MAXIMIZE,
 116                                              IDR_MAXIMIZE_H,
 117                                              IDR_MAXIMIZE_P,
 118                                              IDR_MAXIMIZE_BUTTON_MASK,
 119                                              IDS_ACCNAME_MAXIMIZE,
 120                                              VIEW_ID_MAXIMIZE_BUTTON);
 121   restore_button_ = InitWindowCaptionButton(IDR_RESTORE,
 122                                             IDR_RESTORE_H,
 123                                             IDR_RESTORE_P,
 124                                             IDR_RESTORE_BUTTON_MASK,
 125                                             IDS_ACCNAME_RESTORE,
 126                                             VIEW_ID_RESTORE_BUTTON);
 127   close_button_ = InitWindowCaptionButton(IDR_CLOSE,
 128                                           IDR_CLOSE_H,
 129                                           IDR_CLOSE_P,
 130                                           IDR_CLOSE_BUTTON_MASK,
 131                                           IDS_ACCNAME_CLOSE,
 132                                           VIEW_ID_CLOSE_BUTTON);
 133
 134   // Initializing the TabIconView is expensive, so only do it if we need to.
 135   if (browser_view->ShouldShowWindowIcon()) {
 136     window_icon_ = new TabIconView(this, this);
 137     window_icon_->set_is_light(true);
 138     window_icon_->set_id(VIEW_ID_WINDOW_ICON);
 139     AddChildView(window_icon_);
 140     window_icon_->Update();
 141   }
 142
 143   window_title_ = new views::Label(
 144       browser_view->GetWindowTitle(),
 145       gfx::FontList(BrowserFrame::GetTitleFontList()));
 146   window_title_->SetVisible(browser_view->ShouldShowWindowTitle());
 147   window_title_->SetEnabledColor(SK_ColorWHITE);
 148   window_title_->SetSubpixelRenderingEnabled(false);
 149   window_title_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
 150   window_title_->set_id(VIEW_ID_WINDOW_TITLE);
 151   AddChildView(window_title_);
 152
 153   UpdateAvatar();
 154
 155   platform_observer_.reset(OpaqueBrowserFrameViewPlatformSpecific::Create(
 156       this, layout_, browser_view->browser()->profile()));
 157 }
 158
 159 OpaqueBrowserFrameView::~OpaqueBrowserFrameView() {
 160 }
 161
 162 ///////////////////////////////////////////////////////////////////////////////
 163 // OpaqueBrowserFrameView, BrowserNonClientFrameView implementation:
 164
 165 gfx::Rect OpaqueBrowserFrameView::GetBoundsForTabStrip(
 166     views::View* tabstrip) const {
 167   if (!tabstrip)
 168     return gfx::Rect();
 169
 170   return layout_->GetBoundsForTabStrip(tabstrip->GetPreferredSize(), width());
 171 }
 172
 173 int OpaqueBrowserFrameView::GetTopInset() const {
 174   return browser_view()->IsTabStripVisible() ?
 175       layout_->GetTabStripInsetsTop(false) :
 176       layout_->NonClientTopBorderHeight(false);
 177 }
 178
 179 int OpaqueBrowserFrameView::GetThemeBackgroundXInset() const {
 180   return 0;
 181 }
 182
 183 void OpaqueBrowserFrameView::UpdateThrobber(bool running) {
 184   if (window_icon_)
 185     window_icon_->Update();
 186 }
 187
 188 gfx::Size OpaqueBrowserFrameView::GetMinimumSize() const {
 189   return layout_->GetMinimumSize(width());
 190 }
 191
 192 ///////////////////////////////////////////////////////////////////////////////
 193 // OpaqueBrowserFrameView, views::NonClientFrameView implementation:
 194
 195 gfx::Rect OpaqueBrowserFrameView::GetBoundsForClientView() const {
 196   return layout_->client_view_bounds();
 197 }
 198
 199 gfx::Rect OpaqueBrowserFrameView::GetWindowBoundsForClientBounds(
 200     const gfx::Rect& client_bounds) const {
 201   return layout_->GetWindowBoundsForClientBounds(client_bounds);
 202 }
 203
 204 bool OpaqueBrowserFrameView::IsWithinAvatarMenuButtons(
 205     const gfx::Point& point) const {
 206   if (avatar_button() &&
 207      avatar_button()->GetMirroredBounds().Contains(point)) {
 208     return true;
 209   }
 210 #if defined(FRAME_AVATAR_BUTTON)
 211   if (new_avatar_button() &&
 212      new_avatar_button()->GetMirroredBounds().Contains(point)) {
 213     return true;
 214   }
 215 #endif
 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 #if defined(FRAME_AVATAR_BUTTON)
 328   } else if (sender == new_avatar_button()) {
 329     BrowserWindow::AvatarBubbleMode mode =
 330         BrowserWindow::AVATAR_BUBBLE_MODE_DEFAULT;
 331     if ((event.IsMouseEvent() &&
 332          static_cast<const ui::MouseEvent&>(event).IsRightMouseButton()) ||
 333         (event.type() == ui::ET_GESTURE_LONG_PRESS)) {
 334       mode = BrowserWindow::AVATAR_BUBBLE_MODE_FAST_USER_SWITCH;
 335     }
 336     browser_view()->ShowAvatarBubbleFromAvatarButton(
 337         mode,
 338         signin::ManageAccountsParams());
 339 #endif
 340   }
 341 }
 342
 343 void OpaqueBrowserFrameView::OnMenuButtonClicked(views::View* source,
 344                                                  const gfx::Point& point) {
 345 #if defined(OS_LINUX)
 346   views::MenuRunner menu_runner(frame()->GetSystemMenuModel(),
 347                                 views::MenuRunner::HAS_MNEMONICS);
 348   ignore_result(menu_runner.RunMenuAt(browser_view()->GetWidget(),
 349                                       window_icon_,
 350                                       window_icon_->GetBoundsInScreen(),
 351                                       views::MENU_ANCHOR_TOPLEFT,
 352                                       ui::MENU_SOURCE_MOUSE));
 353 #endif
 354 }
 355
 356 ///////////////////////////////////////////////////////////////////////////////
 357 // OpaqueBrowserFrameView, TabIconView::TabContentsProvider implementation:
 358
 359 bool OpaqueBrowserFrameView::ShouldTabIconViewAnimate() const {
 360   // This function is queried during the creation of the window as the
 361   // TabIconView we host is initialized, so we need to null check the selected
 362   // WebContents because in this condition there is not yet a selected tab.
 363   WebContents* current_tab = browser_view()->GetActiveWebContents();
 364   return current_tab ? current_tab->IsLoading() : false;
 365 }
 366
 367 gfx::ImageSkia OpaqueBrowserFrameView::GetFaviconForTabIconView() {
 368   views::WidgetDelegate* delegate = frame()->widget_delegate();
 369   if (!delegate) {
 370     LOG(WARNING) << "delegate is null, returning safe default.";
 371     return gfx::ImageSkia();
 372   }
 373   return delegate->GetWindowIcon();
 374 }
 375
 376 ///////////////////////////////////////////////////////////////////////////////
 377 // OpaqueBrowserFrameView, OpaqueBrowserFrameViewLayoutDelegate implementation:
 378
 379 bool OpaqueBrowserFrameView::ShouldShowWindowIcon() const {
 380   views::WidgetDelegate* delegate = frame()->widget_delegate();
 381   return ShouldShowWindowTitleBar() && delegate &&
 382          delegate->ShouldShowWindowIcon();
 383 }
 384
 385 bool OpaqueBrowserFrameView::ShouldShowWindowTitle() const {
 386   // |delegate| may be null if called from callback of InputMethodChanged while
 387   // a window is being destroyed.
 388   // See more discussion at http://crosbug.com/8958
 389   views::WidgetDelegate* delegate = frame()->widget_delegate();
 390   return ShouldShowWindowTitleBar() && delegate &&
 391          delegate->ShouldShowWindowTitle();
 392 }
 393
 394 base::string16 OpaqueBrowserFrameView::GetWindowTitle() const {
 395   return frame()->widget_delegate()->GetWindowTitle();
 396 }
 397
 398 int OpaqueBrowserFrameView::GetIconSize() const {
 399 #if defined(OS_WIN)
 400   // This metric scales up if either the titlebar height or the titlebar font
 401   // size are increased.
 402   return GetSystemMetrics(SM_CYSMICON);
 403 #else
 404   return std::max(BrowserFrame::GetTitleFontList().GetHeight(),
 405                   kIconMinimumSize);
 406 #endif
 407 }
 408
 409 bool OpaqueBrowserFrameView::ShouldLeaveOffsetNearTopBorder() const {
 410   return frame()->ShouldLeaveOffsetNearTopBorder();
 411 }
 412
 413 gfx::Size OpaqueBrowserFrameView::GetBrowserViewMinimumSize() const {
 414   return browser_view()->GetMinimumSize();
 415 }
 416
 417 bool OpaqueBrowserFrameView::ShouldShowCaptionButtons() const {
 418   return ShouldShowWindowTitleBar();
 419 }
 420
 421 bool OpaqueBrowserFrameView::ShouldShowAvatar() const {
 422   return browser_view()->ShouldShowAvatar();
 423 }
 424
 425 bool OpaqueBrowserFrameView::IsRegularOrGuestSession() const {
 426   return browser_view()->IsRegularOrGuestSession();
 427 }
 428
 429 gfx::ImageSkia OpaqueBrowserFrameView::GetOTRAvatarIcon() const {
 430   return browser_view()->GetOTRAvatarIcon();
 431 }
 432
 433 bool OpaqueBrowserFrameView::IsMaximized() const {
 434   return frame()->IsMaximized();
 435 }
 436
 437 bool OpaqueBrowserFrameView::IsMinimized() const {
 438   return frame()->IsMinimized();
 439 }
 440
 441 bool OpaqueBrowserFrameView::IsFullscreen() const {
 442   return frame()->IsFullscreen();
 443 }
 444
 445 bool OpaqueBrowserFrameView::IsTabStripVisible() const {
 446   return browser_view()->IsTabStripVisible();
 447 }
 448
 449 int OpaqueBrowserFrameView::GetTabStripHeight() const {
 450   return browser_view()->GetTabStripHeight();
 451 }
 452
 453 gfx::Size OpaqueBrowserFrameView::GetTabstripPreferredSize() const {
 454   gfx::Size s = browser_view()->tabstrip()->GetPreferredSize();
 455   return s;
 456 }
 457
 458 ///////////////////////////////////////////////////////////////////////////////
 459 // OpaqueBrowserFrameView, protected:
 460
 461 // views::View:
 462 void OpaqueBrowserFrameView::OnPaint(gfx::Canvas* canvas) {
 463   if (frame()->IsFullscreen())
 464     return;  // Nothing is visible, so don't bother to paint.
 465
 466   if (layout_->IsTitleBarCondensed())
 467     PaintMaximizedFrameBorder(canvas);
 468   else
 469     PaintRestoredFrameBorder(canvas);
 470
 471   // The window icon and title are painted by their respective views.
 472   /* TODO(pkasting):  If this window is active, we should also draw a drop
 473    * shadow on the title.  This is tricky, because we don't want to hardcode a
 474    * shadow color (since we want to work with various themes), but we can't
 475    * alpha-blend either (since the Windows text APIs don't really do this).
 476    * So we'd need to sample the background color at the right location and
 477    * synthesize a good shadow color. */
 478
 479   if (browser_view()->IsToolbarVisible())
 480     PaintToolbarBackground(canvas);
 481   if (!layout_->IsTitleBarCondensed())
 482     PaintRestoredClientEdge(canvas);
 483 }
 484
 485 // BrowserNonClientFrameView:
 486 bool OpaqueBrowserFrameView::ShouldPaintAsThemed() const {
 487   // Theme app and popup windows if |platform_observer_| wants it.
 488   return browser_view()->IsBrowserTypeNormal() ||
 489          platform_observer_->IsUsingSystemTheme();
 490 }
 491
 492 void OpaqueBrowserFrameView::UpdateNewAvatarButtonImpl() {
 493 #if defined(FRAME_AVATAR_BUTTON)
 494   UpdateNewAvatarButton(this, NewAvatarButton::THEMED_BUTTON);
 495 #endif
 496 }
 497
 498 ///////////////////////////////////////////////////////////////////////////////
 499 // OpaqueBrowserFrameView, private:
 500
 501 // views::NonClientFrameView:
 502 bool OpaqueBrowserFrameView::DoesIntersectRect(const views::View* target,
 503                                                const gfx::Rect& rect) const {
 504   CHECK_EQ(target, this);
 505   if (!views::ViewTargeterDelegate::DoesIntersectRect(this, rect)) {
 506     // |rect| is outside OpaqueBrowserFrameView's bounds.
 507     return false;
 508   }
 509
 510   // If the rect is outside the bounds of the client area, claim it.
 511   gfx::RectF rect_in_client_view_coords_f(rect);
 512   View::ConvertRectToTarget(this, frame()->client_view(),
 513       &rect_in_client_view_coords_f);
 514   gfx::Rect rect_in_client_view_coords = gfx::ToEnclosingRect(
 515       rect_in_client_view_coords_f);
 516   if (!frame()->client_view()->HitTestRect(rect_in_client_view_coords))
 517     return true;
 518
 519   // Otherwise, claim |rect| only if it is above the bottom of the tabstrip in
 520   // a non-tab portion.
 521   TabStrip* tabstrip = browser_view()->tabstrip();
 522   if (!tabstrip || !browser_view()->IsTabStripVisible())
 523     return false;
 524
 525   gfx::RectF rect_in_tabstrip_coords_f(rect);
 526   View::ConvertRectToTarget(this, tabstrip, &rect_in_tabstrip_coords_f);
 527   gfx::Rect rect_in_tabstrip_coords = gfx::ToEnclosingRect(
 528       rect_in_tabstrip_coords_f);
 529   if (rect_in_tabstrip_coords.bottom() > tabstrip->GetLocalBounds().bottom()) {
 530     // |rect| is below the tabstrip.
 531     return false;
 532   }
 533
 534   if (tabstrip->HitTestRect(rect_in_tabstrip_coords)) {
 535     // Claim |rect| if it is in a non-tab portion of the tabstrip.
 536     return tabstrip->IsRectInWindowCaption(rect_in_tabstrip_coords);
 537   }
 538
 539   // We claim |rect| because it is above the bottom of the tabstrip, but
 540   // not in the tabstrip itself. In particular, the avatar label/button is left
 541   // of the tabstrip and the window controls are right of the tabstrip.
 542   return true;
 543 }
 544
 545 views::ImageButton* OpaqueBrowserFrameView::InitWindowCaptionButton(
 546     int normal_image_id,
 547     int hot_image_id,
 548     int pushed_image_id,
 549     int mask_image_id,
 550     int accessibility_string_id,
 551     ViewID view_id) {
 552   views::ImageButton* button = new views::ImageButton(this);
 553   ui::ThemeProvider* tp = frame()->GetThemeProvider();
 554   button->SetImage(views::CustomButton::STATE_NORMAL,
 555                    tp->GetImageSkiaNamed(normal_image_id));
 556   button->SetImage(views::CustomButton::STATE_HOVERED,
 557                    tp->GetImageSkiaNamed(hot_image_id));
 558   button->SetImage(views::CustomButton::STATE_PRESSED,
 559                    tp->GetImageSkiaNamed(pushed_image_id));
 560   if (browser_view()->IsBrowserTypeNormal()) {
 561     button->SetBackground(
 562         tp->GetColor(ThemeProperties::COLOR_BUTTON_BACKGROUND),
 563         tp->GetImageSkiaNamed(IDR_THEME_WINDOW_CONTROL_BACKGROUND),
 564         tp->GetImageSkiaNamed(mask_image_id));
 565   }
 566   button->SetAccessibleName(
 567       l10n_util::GetStringUTF16(accessibility_string_id));
 568   button->set_id(view_id);
 569   AddChildView(button);
 570   return button;
 571 }
 572
 573 int OpaqueBrowserFrameView::FrameBorderThickness(bool restored) const {
 574   return layout_->FrameBorderThickness(restored);
 575 }
 576
 577 int OpaqueBrowserFrameView::TopResizeHeight() const {
 578   return FrameBorderThickness(false) - kTopResizeAdjust;
 579 }
 580
 581 int OpaqueBrowserFrameView::NonClientBorderThickness() const {
 582   return layout_->NonClientBorderThickness();
 583 }
 584
 585 gfx::Rect OpaqueBrowserFrameView::IconBounds() const {
 586   return layout_->IconBounds();
 587 }
 588
 589 bool OpaqueBrowserFrameView::ShouldShowWindowTitleBar() const {
 590   // Do not show the custom title bar if the system title bar option is enabled.
 591   if (!frame()->UseCustomFrame())
 592     return false;
 593
 594   // Do not show caption buttons if the window manager is forcefully providing a
 595   // title bar (e.g., in Ubuntu Unity, if the window is maximized).
 596   if (!views::ViewsDelegate::GetInstance())
 597     return true;
 598   return !views::ViewsDelegate::GetInstance()->WindowManagerProvidesTitleBar(
 599       IsMaximized());
 600 }
 601
 602 void OpaqueBrowserFrameView::PaintRestoredFrameBorder(gfx::Canvas* canvas) {
 603   frame_background_->set_frame_color(GetFrameColor());
 604   frame_background_->set_theme_image(GetFrameImage());
 605   frame_background_->set_theme_overlay_image(GetFrameOverlayImage());
 606   frame_background_->set_top_area_height(GetTopAreaHeight());
 607
 608   ui::ThemeProvider* tp = GetThemeProvider();
 609   frame_background_->SetSideImages(
 610       tp->GetImageSkiaNamed(IDR_WINDOW_LEFT_SIDE),
 611       tp->GetImageSkiaNamed(IDR_WINDOW_TOP_CENTER),
 612       tp->GetImageSkiaNamed(IDR_WINDOW_RIGHT_SIDE),
 613       tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_CENTER));
 614   frame_background_->SetCornerImages(
 615       tp->GetImageSkiaNamed(IDR_WINDOW_TOP_LEFT_CORNER),
 616       tp->GetImageSkiaNamed(IDR_WINDOW_TOP_RIGHT_CORNER),
 617       tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_LEFT_CORNER),
 618       tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_RIGHT_CORNER));
 619   frame_background_->PaintRestored(canvas, this);
 620
 621   // Note: When we don't have a toolbar, we need to draw some kind of bottom
 622   // edge here.  Because the App Window graphics we use for this have an
 623   // attached client edge and their sizing algorithm is a little involved, we do
 624   // all this in PaintRestoredClientEdge().
 625 }
 626
 627 void OpaqueBrowserFrameView::PaintMaximizedFrameBorder(gfx::Canvas* canvas) {
 628   ui::ThemeProvider* tp = GetThemeProvider();
 629   frame_background_->set_frame_color(GetFrameColor());
 630   frame_background_->set_theme_image(GetFrameImage());
 631   frame_background_->set_theme_overlay_image(GetFrameOverlayImage());
 632   frame_background_->set_top_area_height(GetTopAreaHeight());
 633 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 634   // The window manager typically shows a gradient in the native title bar (when
 635   // the system title bar pref is set, or when maximized on Ubuntu). Hide the
 636   // gradient in the tab strip (by shifting it up vertically) to avoid a
 637   // double-gradient effect.
 638   if (tp->UsingSystemTheme())
 639     frame_background_->set_maximized_top_inset(kGTKThemeCondensedFrameTopInset);
 640 #endif
 641
 642   frame_background_->PaintMaximized(canvas, this);
 643
 644   // TODO(jamescook): Migrate this into FrameBackground.
 645   if (!browser_view()->IsToolbarVisible()) {
 646     // There's no toolbar to edge the frame border, so we need to draw a bottom
 647     // edge.  The graphic we use for this has a built in client edge, so we clip
 648     // it off the bottom.
 649     gfx::ImageSkia* top_center = tp->GetImageSkiaNamed(IDR_APP_TOP_CENTER);
 650     int edge_height = top_center->height() - kClientEdgeThickness;
 651     canvas->TileImageInt(*top_center, 0,
 652         frame()->client_view()->y() - edge_height, width(), edge_height);
 653   }
 654 }
 655
 656 void OpaqueBrowserFrameView::PaintToolbarBackground(gfx::Canvas* canvas) {
 657   gfx::Rect toolbar_bounds(browser_view()->GetToolbarBounds());
 658   if (toolbar_bounds.IsEmpty())
 659     return;
 660   gfx::Point toolbar_origin(toolbar_bounds.origin());
 661   ConvertPointToTarget(browser_view(), this, &toolbar_origin);
 662   toolbar_bounds.set_origin(toolbar_origin);
 663
 664   int x = toolbar_bounds.x();
 665   int w = toolbar_bounds.width();
 666   int y = toolbar_bounds.y();
 667   int h = toolbar_bounds.height();
 668
 669   // Gross hack: We split the toolbar images into two pieces, since sometimes
 670   // (popup mode) the toolbar isn't tall enough to show the whole image.  The
 671   // split happens between the top shadow section and the bottom gradient
 672   // section so that we never break the gradient.
 673   int split_point = kFrameShadowThickness * 2;
 674   int bottom_y = y + split_point;
 675   ui::ThemeProvider* tp = GetThemeProvider();
 676   gfx::ImageSkia* toolbar_left = tp->GetImageSkiaNamed(
 677       IDR_CONTENT_TOP_LEFT_CORNER);
 678   int bottom_edge_height = std::min(toolbar_left->height(), h) - split_point;
 679
 680   // Split our canvas out so we can mask out the corners of the toolbar
 681   // without masking out the frame.
 682   canvas->SaveLayerAlpha(
 683       255, gfx::Rect(x - kClientEdgeThickness, y, w + kClientEdgeThickness * 3,
 684                      h));
 685
 686   // Paint the bottom rect.
 687   canvas->FillRect(gfx::Rect(x, bottom_y, w, bottom_edge_height),
 688                    tp->GetColor(ThemeProperties::COLOR_TOOLBAR));
 689
 690   // Tile the toolbar image starting at the frame edge on the left and where the
 691   // horizontal tabstrip is (or would be) on the top.
 692   gfx::ImageSkia* theme_toolbar = tp->GetImageSkiaNamed(IDR_THEME_TOOLBAR);
 693   canvas->TileImageInt(*theme_toolbar,
 694                        x + GetThemeBackgroundXInset(),
 695                        bottom_y - GetTopInset(),
 696                        x, bottom_y, w, theme_toolbar->height());
 697
 698   // Draw rounded corners for the tab.
 699   gfx::ImageSkia* toolbar_left_mask =
 700       tp->GetImageSkiaNamed(IDR_CONTENT_TOP_LEFT_CORNER_MASK);
 701   gfx::ImageSkia* toolbar_right_mask =
 702       tp->GetImageSkiaNamed(IDR_CONTENT_TOP_RIGHT_CORNER_MASK);
 703
 704   // We mask out the corners by using the DestinationIn transfer mode,
 705   // which keeps the RGB pixels from the destination and the alpha from
 706   // the source.
 707   SkPaint paint;
 708   paint.setXfermodeMode(SkXfermode::kDstIn_Mode);
 709
 710   // Mask the left edge.
 711   int left_x = x - kContentEdgeShadowThickness;
 712   canvas->DrawImageInt(*toolbar_left_mask, 0, 0, toolbar_left_mask->width(),
 713                        split_point, left_x, y, toolbar_left_mask->width(),
 714                        split_point, false, paint);
 715   canvas->DrawImageInt(*toolbar_left_mask, 0,
 716       toolbar_left_mask->height() - bottom_edge_height,
 717       toolbar_left_mask->width(), bottom_edge_height, left_x, bottom_y,
 718       toolbar_left_mask->width(), bottom_edge_height, false, paint);
 719
 720   // Mask the right edge.
 721   int right_x =
 722       x + w - toolbar_right_mask->width() + kContentEdgeShadowThickness;
 723   canvas->DrawImageInt(*toolbar_right_mask, 0, 0, toolbar_right_mask->width(),
 724                        split_point, right_x, y, toolbar_right_mask->width(),
 725                        split_point, false, paint);
 726   canvas->DrawImageInt(*toolbar_right_mask, 0,
 727       toolbar_right_mask->height() - bottom_edge_height,
 728       toolbar_right_mask->width(), bottom_edge_height, right_x, bottom_y,
 729       toolbar_right_mask->width(), bottom_edge_height, false, paint);
 730   canvas->Restore();
 731
 732   canvas->DrawImageInt(*toolbar_left, 0, 0, toolbar_left->width(), split_point,
 733                        left_x, y, toolbar_left->width(), split_point, false);
 734   canvas->DrawImageInt(*toolbar_left, 0,
 735       toolbar_left->height() - bottom_edge_height, toolbar_left->width(),
 736       bottom_edge_height, left_x, bottom_y, toolbar_left->width(),
 737       bottom_edge_height, false);
 738
 739   gfx::ImageSkia* toolbar_center =
 740       tp->GetImageSkiaNamed(IDR_CONTENT_TOP_CENTER);
 741   canvas->TileImageInt(*toolbar_center, 0, 0, left_x + toolbar_left->width(),
 742       y, right_x - (left_x + toolbar_left->width()),
 743       split_point);
 744
 745   gfx::ImageSkia* toolbar_right = tp->GetImageSkiaNamed(
 746       IDR_CONTENT_TOP_RIGHT_CORNER);
 747   canvas->DrawImageInt(*toolbar_right, 0, 0, toolbar_right->width(),
 748       split_point, right_x, y, toolbar_right->width(), split_point, false);
 749   canvas->DrawImageInt(*toolbar_right, 0,
 750       toolbar_right->height() - bottom_edge_height, toolbar_right->width(),
 751       bottom_edge_height, right_x, bottom_y, toolbar_right->width(),
 752       bottom_edge_height, false);
 753
 754   // Draw the content/toolbar separator.
 755   if (ui::MaterialDesignController::IsModeMaterial()) {
 756     toolbar_bounds.Inset(kClientEdgeThickness, 0);
 757     BrowserView::Paint1pxHorizontalLine(
 758         canvas,
 759         ThemeProperties::GetDefaultColor(
 760             ThemeProperties::COLOR_TOOLBAR_SEPARATOR),
 761         toolbar_bounds);
 762   } else {
 763     canvas->FillRect(
 764         gfx::Rect(x + kClientEdgeThickness,
 765                   toolbar_bounds.bottom() - kClientEdgeThickness,
 766                   w - (2 * kClientEdgeThickness),
 767                   kClientEdgeThickness),
 768         ThemeProperties::GetDefaultColor(
 769             ThemeProperties::COLOR_TOOLBAR_SEPARATOR));
 770   }
 771 }
 772
 773 void OpaqueBrowserFrameView::PaintRestoredClientEdge(gfx::Canvas* canvas) {
 774   ui::ThemeProvider* tp = GetThemeProvider();
 775   int client_area_top = frame()->client_view()->y();
 776   int image_top = client_area_top;
 777
 778   gfx::Rect client_area_bounds =
 779       layout_->CalculateClientAreaBounds(width(), height());
 780   SkColor toolbar_color = tp->GetColor(ThemeProperties::COLOR_TOOLBAR);
 781
 782   if (browser_view()->IsToolbarVisible()) {
 783     // The client edge images always start below the toolbar corner images.  The
 784     // client edge filled rects start there or at the bottom of the toolbar,
 785     // whichever is shorter.
 786     gfx::Rect toolbar_bounds(browser_view()->GetToolbarBounds());
 787
 788     gfx::ImageSkia* content_top_left_corner =
 789         tp->GetImageSkiaNamed(IDR_CONTENT_TOP_LEFT_CORNER);
 790     // TODO(oshima): Sanity checks for crbug.com/374273. Remove when it's fixed.
 791     CHECK(content_top_left_corner);
 792     CHECK(!content_top_left_corner->isNull());
 793
 794     image_top += toolbar_bounds.y() + content_top_left_corner->height();
 795     client_area_top = std::min(image_top,
 796         client_area_top + toolbar_bounds.bottom() - kClientEdgeThickness);
 797   } else if (!browser_view()->IsTabStripVisible()) {
 798     // The toolbar isn't going to draw a client edge for us, so draw one
 799     // ourselves.
 800     gfx::ImageSkia* top_left = tp->GetImageSkiaNamed(IDR_APP_TOP_LEFT);
 801     gfx::ImageSkia* top_center = tp->GetImageSkiaNamed(IDR_APP_TOP_CENTER);
 802     gfx::ImageSkia* top_right = tp->GetImageSkiaNamed(IDR_APP_TOP_RIGHT);
 803     int top_edge_y = client_area_top - top_center->height();
 804     int height = client_area_top - top_edge_y;
 805
 806     canvas->DrawImageInt(*top_left, 0, 0, top_left->width(), height,
 807         client_area_bounds.x() - top_left->width(), top_edge_y,
 808         top_left->width(), height, false);
 809     canvas->TileImageInt(*top_center, 0, 0, client_area_bounds.x(), top_edge_y,
 810       client_area_bounds.width(), std::min(height, top_center->height()));
 811     canvas->DrawImageInt(*top_right, 0, 0, top_right->width(), height,
 812         client_area_bounds.right(), top_edge_y,
 813         top_right->width(), height, false);
 814
 815     // Draw the toolbar color across the top edge.
 816     canvas->FillRect(gfx::Rect(client_area_bounds.x() - kClientEdgeThickness,
 817         client_area_top - kClientEdgeThickness,
 818         client_area_bounds.width() + (2 * kClientEdgeThickness),
 819         kClientEdgeThickness), toolbar_color);
 820   }
 821
 822   int client_area_bottom =
 823       std::max(client_area_top, height() - NonClientBorderThickness());
 824   int image_height = client_area_bottom - image_top;
 825
 826   // Draw the client edge images.
 827   gfx::ImageSkia* right = tp->GetImageSkiaNamed(IDR_CONTENT_RIGHT_SIDE);
 828   canvas->TileImageInt(*right, client_area_bounds.right(), image_top,
 829                        right->width(), image_height);
 830   canvas->DrawImageInt(
 831       *tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_RIGHT_CORNER),
 832       client_area_bounds.right(), client_area_bottom);
 833   gfx::ImageSkia* bottom = tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_CENTER);
 834   canvas->TileImageInt(*bottom, client_area_bounds.x(),
 835       client_area_bottom, client_area_bounds.width(),
 836       bottom->height());
 837   gfx::ImageSkia* bottom_left =
 838       tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_LEFT_CORNER);
 839   canvas->DrawImageInt(*bottom_left,
 840       client_area_bounds.x() - bottom_left->width(), client_area_bottom);
 841   gfx::ImageSkia* left = tp->GetImageSkiaNamed(IDR_CONTENT_LEFT_SIDE);
 842   canvas->TileImageInt(*left, client_area_bounds.x() - left->width(),
 843                        image_top, left->width(), image_height);
 844
 845   // Draw the toolbar color so that the client edges show the right color even
 846   // where not covered by the toolbar image.  NOTE: We do this after drawing the
 847   // images because the images are meant to alpha-blend atop the frame whereas
 848   // these rects are meant to be fully opaque, without anything overlaid.
 849   canvas->FillRect(gfx::Rect(client_area_bounds.x() - kClientEdgeThickness,
 850       client_area_top, kClientEdgeThickness,
 851       client_area_bottom + kClientEdgeThickness - client_area_top),
 852        toolbar_color);
 853   canvas->FillRect(gfx::Rect(client_area_bounds.x(), client_area_bottom,
 854                              client_area_bounds.width(), kClientEdgeThickness),
 855                    toolbar_color);
 856   canvas->FillRect(gfx::Rect(client_area_bounds.right(), client_area_top,
 857       kClientEdgeThickness,
 858       client_area_bottom + kClientEdgeThickness - client_area_top),
 859       toolbar_color);
 860 }