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   // TODO(robliao): Remove ScopedTracker below once crbug.com/461137 is fixed.
 181   tracked_objects::ScopedTracker tracking_profile(
 182       FROM_HERE_WITH_EXPLICIT_FUNCTION(
 183           "461137 OpaqueBrowserFrameView::UpdateThrobber"));
 184
 185   if (window_icon_)
 186     window_icon_->Update();
 187 }
 188
 189 gfx::Size OpaqueBrowserFrameView::GetMinimumSize() const {
 190   return layout_->GetMinimumSize(width());
 191 }
 192
 193 ///////////////////////////////////////////////////////////////////////////////
 194 // OpaqueBrowserFrameView, views::NonClientFrameView implementation:
 195
 196 gfx::Rect OpaqueBrowserFrameView::GetBoundsForClientView() const {
 197   return layout_->client_view_bounds();
 198 }
 199
 200 gfx::Rect OpaqueBrowserFrameView::GetWindowBoundsForClientBounds(
 201     const gfx::Rect& client_bounds) const {
 202   return layout_->GetWindowBoundsForClientBounds(client_bounds);
 203 }
 204
 205 bool OpaqueBrowserFrameView::IsWithinAvatarMenuButtons(
 206     const gfx::Point& point) const {
 207   if (avatar_button() &&
 208      avatar_button()->GetMirroredBounds().Contains(point)) {
 209     return true;
 210   }
 211   if (new_avatar_button() &&
 212      new_avatar_button()->GetMirroredBounds().Contains(point)) {
 213     return true;
 214   }
 215
 216   return false;
 217 }
 218
 219 int OpaqueBrowserFrameView::NonClientHitTest(const gfx::Point& point) {
 220   if (!bounds().Contains(point))
 221     return HTNOWHERE;
 222
 223   // See if the point is within the avatar menu button.
 224   if (IsWithinAvatarMenuButtons(point))
 225     return HTCLIENT;
 226 #if defined(ENABLE_SUPERVISED_USERS)
 227   // ...or within the avatar label, if it's a supervised user.
 228   if ((supervised_user_avatar_label() &&
 229        supervised_user_avatar_label()->GetMirroredBounds().Contains(point)))
 230     return HTCLIENT;
 231 #endif
 232
 233   int frame_component = frame()->client_view()->NonClientHitTest(point);
 234
 235   // See if we're in the sysmenu region.  We still have to check the tabstrip
 236   // first so that clicks in a tab don't get treated as sysmenu clicks.
 237   gfx::Rect sysmenu_rect(IconBounds());
 238   // In maximized mode we extend the rect to the screen corner to take advantage
 239   // of Fitts' Law.
 240   if (layout_->IsTitleBarCondensed())
 241     sysmenu_rect.SetRect(0, 0, sysmenu_rect.right(), sysmenu_rect.bottom());
 242   sysmenu_rect.set_x(GetMirroredXForRect(sysmenu_rect));
 243   if (sysmenu_rect.Contains(point))
 244     return (frame_component == HTCLIENT) ? HTCLIENT : HTSYSMENU;
 245
 246   if (frame_component != HTNOWHERE)
 247     return frame_component;
 248
 249   // Then see if the point is within any of the window controls.
 250   if (close_button_ && close_button_->visible() &&
 251       close_button_->GetMirroredBounds().Contains(point))
 252     return HTCLOSE;
 253   if (restore_button_ && restore_button_->visible() &&
 254       restore_button_->GetMirroredBounds().Contains(point))
 255     return HTMAXBUTTON;
 256   if (maximize_button_ && maximize_button_->visible() &&
 257       maximize_button_->GetMirroredBounds().Contains(point))
 258     return HTMAXBUTTON;
 259   if (minimize_button_ && minimize_button_->visible() &&
 260       minimize_button_->GetMirroredBounds().Contains(point))
 261     return HTMINBUTTON;
 262
 263   views::WidgetDelegate* delegate = frame()->widget_delegate();
 264   if (!delegate) {
 265     LOG(WARNING) << "delegate is null, returning safe default.";
 266     return HTCAPTION;
 267   }
 268   int window_component = GetHTComponentForFrame(point, TopResizeHeight(),
 269       NonClientBorderThickness(), kResizeAreaCornerSize, kResizeAreaCornerSize,
 270       delegate->CanResize());
 271   // Fall back to the caption if no other component matches.
 272   return (window_component == HTNOWHERE) ? HTCAPTION : window_component;
 273 }
 274
 275 void OpaqueBrowserFrameView::GetWindowMask(const gfx::Size& size,
 276                                            gfx::Path* window_mask) {
 277   DCHECK(window_mask);
 278
 279   if (layout_->IsTitleBarCondensed() || frame()->IsFullscreen())
 280     return;
 281
 282   views::GetDefaultWindowMask(size, window_mask);
 283 }
 284
 285 void OpaqueBrowserFrameView::ResetWindowControls() {
 286   restore_button_->SetState(views::CustomButton::STATE_NORMAL);
 287   minimize_button_->SetState(views::CustomButton::STATE_NORMAL);
 288   maximize_button_->SetState(views::CustomButton::STATE_NORMAL);
 289   // The close button isn't affected by this constraint.
 290 }
 291
 292 void OpaqueBrowserFrameView::UpdateWindowIcon() {
 293   if (window_icon_)
 294     window_icon_->SchedulePaint();
 295 }
 296
 297 void OpaqueBrowserFrameView::UpdateWindowTitle() {
 298   if (!frame()->IsFullscreen())
 299     window_title_->SchedulePaint();
 300 }
 301
 302 void OpaqueBrowserFrameView::SizeConstraintsChanged() {
 303 }
 304
 305 ///////////////////////////////////////////////////////////////////////////////
 306 // OpaqueBrowserFrameView, views::View overrides:
 307
 308 void OpaqueBrowserFrameView::GetAccessibleState(
 309     ui::AXViewState* state) {
 310   state->role = ui::AX_ROLE_TITLE_BAR;
 311 }
 312
 313 ///////////////////////////////////////////////////////////////////////////////
 314 // OpaqueBrowserFrameView, views::ButtonListener implementation:
 315
 316 void OpaqueBrowserFrameView::ButtonPressed(views::Button* sender,
 317                                            const ui::Event& event) {
 318   if (sender == minimize_button_) {
 319     frame()->Minimize();
 320   } else if (sender == maximize_button_) {
 321     frame()->Maximize();
 322   } else if (sender == restore_button_) {
 323     frame()->Restore();
 324   } else if (sender == close_button_) {
 325     frame()->Close();
 326   } else if (sender == new_avatar_button()) {
 327     BrowserWindow::AvatarBubbleMode mode =
 328         BrowserWindow::AVATAR_BUBBLE_MODE_DEFAULT;
 329     if (event.IsMouseEvent() &&
 330         static_cast<const ui::MouseEvent&>(event).IsRightMouseButton()) {
 331       mode = BrowserWindow::AVATAR_BUBBLE_MODE_FAST_USER_SWITCH;
 332     }
 333     browser_view()->ShowAvatarBubbleFromAvatarButton(
 334         mode,
 335         signin::ManageAccountsParams());
 336   }
 337 }
 338
 339 void OpaqueBrowserFrameView::OnMenuButtonClicked(views::View* source,
 340                                                  const gfx::Point& point) {
 341 #if defined(OS_LINUX)
 342   views::MenuRunner menu_runner(frame()->GetSystemMenuModel(),
 343                                 views::MenuRunner::HAS_MNEMONICS);
 344   ignore_result(menu_runner.RunMenuAt(browser_view()->GetWidget(),
 345                                       window_icon_,
 346                                       window_icon_->GetBoundsInScreen(),
 347                                       views::MENU_ANCHOR_TOPLEFT,
 348                                       ui::MENU_SOURCE_MOUSE));
 349 #endif
 350 }
 351
 352 ///////////////////////////////////////////////////////////////////////////////
 353 // OpaqueBrowserFrameView, TabIconView::TabContentsProvider implementation:
 354
 355 bool OpaqueBrowserFrameView::ShouldTabIconViewAnimate() const {
 356   // This function is queried during the creation of the window as the
 357   // TabIconView we host is initialized, so we need to null check the selected
 358   // WebContents because in this condition there is not yet a selected tab.
 359   WebContents* current_tab = browser_view()->GetActiveWebContents();
 360   return current_tab ? current_tab->IsLoading() : false;
 361 }
 362
 363 gfx::ImageSkia OpaqueBrowserFrameView::GetFaviconForTabIconView() {
 364   views::WidgetDelegate* delegate = frame()->widget_delegate();
 365   if (!delegate) {
 366     LOG(WARNING) << "delegate is null, returning safe default.";
 367     return gfx::ImageSkia();
 368   }
 369   return delegate->GetWindowIcon();
 370 }
 371
 372 ///////////////////////////////////////////////////////////////////////////////
 373 // OpaqueBrowserFrameView, OpaqueBrowserFrameViewLayoutDelegate implementation:
 374
 375 bool OpaqueBrowserFrameView::ShouldShowWindowIcon() const {
 376   views::WidgetDelegate* delegate = frame()->widget_delegate();
 377   return ShouldShowWindowTitleBar() && delegate &&
 378          delegate->ShouldShowWindowIcon();
 379 }
 380
 381 bool OpaqueBrowserFrameView::ShouldShowWindowTitle() const {
 382   // |delegate| may be null if called from callback of InputMethodChanged while
 383   // a window is being destroyed.
 384   // See more discussion at http://crosbug.com/8958
 385   views::WidgetDelegate* delegate = frame()->widget_delegate();
 386   return ShouldShowWindowTitleBar() && delegate &&
 387          delegate->ShouldShowWindowTitle();
 388 }
 389
 390 base::string16 OpaqueBrowserFrameView::GetWindowTitle() const {
 391   return frame()->widget_delegate()->GetWindowTitle();
 392 }
 393
 394 int OpaqueBrowserFrameView::GetIconSize() const {
 395 #if defined(OS_WIN)
 396   // This metric scales up if either the titlebar height or the titlebar font
 397   // size are increased.
 398   return GetSystemMetrics(SM_CYSMICON);
 399 #else
 400   return std::max(BrowserFrame::GetTitleFontList().GetHeight(),
 401                   kIconMinimumSize);
 402 #endif
 403 }
 404
 405 bool OpaqueBrowserFrameView::ShouldLeaveOffsetNearTopBorder() const {
 406   return frame()->ShouldLeaveOffsetNearTopBorder();
 407 }
 408
 409 gfx::Size OpaqueBrowserFrameView::GetBrowserViewMinimumSize() const {
 410   return browser_view()->GetMinimumSize();
 411 }
 412
 413 bool OpaqueBrowserFrameView::ShouldShowCaptionButtons() const {
 414   return ShouldShowWindowTitleBar();
 415 }
 416
 417 bool OpaqueBrowserFrameView::ShouldShowAvatar() const {
 418   return browser_view()->ShouldShowAvatar();
 419 }
 420
 421 bool OpaqueBrowserFrameView::IsRegularOrGuestSession() const {
 422   return browser_view()->IsRegularOrGuestSession();
 423 }
 424
 425 gfx::ImageSkia OpaqueBrowserFrameView::GetOTRAvatarIcon() const {
 426   return browser_view()->GetOTRAvatarIcon();
 427 }
 428
 429 bool OpaqueBrowserFrameView::IsMaximized() const {
 430   return frame()->IsMaximized();
 431 }
 432
 433 bool OpaqueBrowserFrameView::IsMinimized() const {
 434   return frame()->IsMinimized();
 435 }
 436
 437 bool OpaqueBrowserFrameView::IsFullscreen() const {
 438   return frame()->IsFullscreen();
 439 }
 440
 441 bool OpaqueBrowserFrameView::IsTabStripVisible() const {
 442   return browser_view()->IsTabStripVisible();
 443 }
 444
 445 int OpaqueBrowserFrameView::GetTabStripHeight() const {
 446   return browser_view()->GetTabStripHeight();
 447 }
 448
 449 gfx::Size OpaqueBrowserFrameView::GetTabstripPreferredSize() const {
 450   gfx::Size s = browser_view()->tabstrip()->GetPreferredSize();
 451   return s;
 452 }
 453
 454 ///////////////////////////////////////////////////////////////////////////////
 455 // OpaqueBrowserFrameView, protected:
 456
 457 // views::View:
 458 void OpaqueBrowserFrameView::OnPaint(gfx::Canvas* canvas) {
 459   if (frame()->IsFullscreen())
 460     return;  // Nothing is visible, so don't bother to paint.
 461
 462   if (layout_->IsTitleBarCondensed())
 463     PaintMaximizedFrameBorder(canvas);
 464   else
 465     PaintRestoredFrameBorder(canvas);
 466
 467   // The window icon and title are painted by their respective views.
 468   /* TODO(pkasting):  If this window is active, we should also draw a drop
 469    * shadow on the title.  This is tricky, because we don't want to hardcode a
 470    * shadow color (since we want to work with various themes), but we can't
 471    * alpha-blend either (since the Windows text APIs don't really do this).
 472    * So we'd need to sample the background color at the right location and
 473    * synthesize a good shadow color. */
 474
 475   if (browser_view()->IsToolbarVisible())
 476     PaintToolbarBackground(canvas);
 477   if (!layout_->IsTitleBarCondensed())
 478     PaintRestoredClientEdge(canvas);
 479 }
 480
 481 // BrowserNonClientFrameView:
 482 bool OpaqueBrowserFrameView::ShouldPaintAsThemed() const {
 483   // Theme app and popup windows if |platform_observer_| wants it.
 484   return browser_view()->IsBrowserTypeNormal() ||
 485          platform_observer_->IsUsingSystemTheme();
 486 }
 487
 488 void OpaqueBrowserFrameView::UpdateNewAvatarButtonImpl() {
 489   UpdateNewAvatarButton(this, NewAvatarButton::THEMED_BUTTON);
 490 }
 491
 492 ///////////////////////////////////////////////////////////////////////////////
 493 // OpaqueBrowserFrameView, private:
 494
 495 // views::NonClientFrameView:
 496 bool OpaqueBrowserFrameView::DoesIntersectRect(const views::View* target,
 497                                                const gfx::Rect& rect) const {
 498   CHECK_EQ(target, this);
 499   if (!views::ViewTargeterDelegate::DoesIntersectRect(this, rect)) {
 500     // |rect| is outside OpaqueBrowserFrameView's bounds.
 501     return false;
 502   }
 503
 504   // If the rect is outside the bounds of the client area, claim it.
 505   gfx::RectF rect_in_client_view_coords_f(rect);
 506   View::ConvertRectToTarget(this, frame()->client_view(),
 507       &rect_in_client_view_coords_f);
 508   gfx::Rect rect_in_client_view_coords = gfx::ToEnclosingRect(
 509       rect_in_client_view_coords_f);
 510   if (!frame()->client_view()->HitTestRect(rect_in_client_view_coords))
 511     return true;
 512
 513   // Otherwise, claim |rect| only if it is above the bottom of the tabstrip in
 514   // a non-tab portion.
 515   TabStrip* tabstrip = browser_view()->tabstrip();
 516   if (!tabstrip || !browser_view()->IsTabStripVisible())
 517     return false;
 518
 519   gfx::RectF rect_in_tabstrip_coords_f(rect);
 520   View::ConvertRectToTarget(this, tabstrip, &rect_in_tabstrip_coords_f);
 521   gfx::Rect rect_in_tabstrip_coords = gfx::ToEnclosingRect(
 522       rect_in_tabstrip_coords_f);
 523   if (rect_in_tabstrip_coords.bottom() > tabstrip->GetLocalBounds().bottom()) {
 524     // |rect| is below the tabstrip.
 525     return false;
 526   }
 527
 528   if (tabstrip->HitTestRect(rect_in_tabstrip_coords)) {
 529     // Claim |rect| if it is in a non-tab portion of the tabstrip.
 530     return tabstrip->IsRectInWindowCaption(rect_in_tabstrip_coords);
 531   }
 532
 533   // We claim |rect| because it is above the bottom of the tabstrip, but
 534   // not in the tabstrip itself. In particular, the avatar label/button is left
 535   // of the tabstrip and the window controls are right of the tabstrip.
 536   return true;
 537 }
 538
 539 views::ImageButton* OpaqueBrowserFrameView::InitWindowCaptionButton(
 540     int normal_image_id,
 541     int hot_image_id,
 542     int pushed_image_id,
 543     int mask_image_id,
 544     int accessibility_string_id,
 545     ViewID view_id) {
 546   views::ImageButton* button = new views::ImageButton(this);
 547   ui::ThemeProvider* tp = frame()->GetThemeProvider();
 548   button->SetImage(views::CustomButton::STATE_NORMAL,
 549                    tp->GetImageSkiaNamed(normal_image_id));
 550   button->SetImage(views::CustomButton::STATE_HOVERED,
 551                    tp->GetImageSkiaNamed(hot_image_id));
 552   button->SetImage(views::CustomButton::STATE_PRESSED,
 553                    tp->GetImageSkiaNamed(pushed_image_id));
 554   if (browser_view()->IsBrowserTypeNormal()) {
 555     button->SetBackground(
 556         tp->GetColor(ThemeProperties::COLOR_BUTTON_BACKGROUND),
 557         tp->GetImageSkiaNamed(IDR_THEME_WINDOW_CONTROL_BACKGROUND),
 558         tp->GetImageSkiaNamed(mask_image_id));
 559   }
 560   button->SetAccessibleName(
 561       l10n_util::GetStringUTF16(accessibility_string_id));
 562   button->set_id(view_id);
 563   AddChildView(button);
 564   return button;
 565 }
 566
 567 int OpaqueBrowserFrameView::FrameBorderThickness(bool restored) const {
 568   return layout_->FrameBorderThickness(restored);
 569 }
 570
 571 int OpaqueBrowserFrameView::TopResizeHeight() const {
 572   return FrameBorderThickness(false) - kTopResizeAdjust;
 573 }
 574
 575 int OpaqueBrowserFrameView::NonClientBorderThickness() const {
 576   return layout_->NonClientBorderThickness();
 577 }
 578
 579 gfx::Rect OpaqueBrowserFrameView::IconBounds() const {
 580   return layout_->IconBounds();
 581 }
 582
 583 bool OpaqueBrowserFrameView::ShouldShowWindowTitleBar() const {
 584   // Do not show the custom title bar if the system title bar option is enabled.
 585   if (!frame()->UseCustomFrame())
 586     return false;
 587
 588   // Do not show caption buttons if the window manager is forcefully providing a
 589   // title bar (e.g., in Ubuntu Unity, if the window is maximized).
 590   if (!views::ViewsDelegate::views_delegate)
 591     return true;
 592   return !views::ViewsDelegate::views_delegate->WindowManagerProvidesTitleBar(
 593               IsMaximized());
 594 }
 595
 596 void OpaqueBrowserFrameView::PaintRestoredFrameBorder(gfx::Canvas* canvas) {
 597   frame_background_->set_frame_color(GetFrameColor());
 598   frame_background_->set_theme_image(GetFrameImage());
 599   frame_background_->set_theme_overlay_image(GetFrameOverlayImage());
 600   frame_background_->set_top_area_height(GetTopAreaHeight());
 601
 602   ui::ThemeProvider* tp = GetThemeProvider();
 603   frame_background_->SetSideImages(
 604       tp->GetImageSkiaNamed(IDR_WINDOW_LEFT_SIDE),
 605       tp->GetImageSkiaNamed(IDR_WINDOW_TOP_CENTER),
 606       tp->GetImageSkiaNamed(IDR_WINDOW_RIGHT_SIDE),
 607       tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_CENTER));
 608   frame_background_->SetCornerImages(
 609       tp->GetImageSkiaNamed(IDR_WINDOW_TOP_LEFT_CORNER),
 610       tp->GetImageSkiaNamed(IDR_WINDOW_TOP_RIGHT_CORNER),
 611       tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_LEFT_CORNER),
 612       tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_RIGHT_CORNER));
 613   frame_background_->PaintRestored(canvas, this);
 614
 615   // Note: When we don't have a toolbar, we need to draw some kind of bottom
 616   // edge here.  Because the App Window graphics we use for this have an
 617   // attached client edge and their sizing algorithm is a little involved, we do
 618   // all this in PaintRestoredClientEdge().
 619 }
 620
 621 void OpaqueBrowserFrameView::PaintMaximizedFrameBorder(gfx::Canvas* canvas) {
 622   ui::ThemeProvider* tp = GetThemeProvider();
 623   frame_background_->set_frame_color(GetFrameColor());
 624   frame_background_->set_theme_image(GetFrameImage());
 625   frame_background_->set_theme_overlay_image(GetFrameOverlayImage());
 626   frame_background_->set_top_area_height(GetTopAreaHeight());
 627 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 628   // The window manager typically shows a gradient in the native title bar (when
 629   // the system title bar pref is set, or when maximized on Ubuntu). Hide the
 630   // gradient in the tab strip (by shifting it up vertically) to avoid a
 631   // double-gradient effect.
 632   if (tp->UsingSystemTheme())
 633     frame_background_->set_maximized_top_inset(kGTKThemeCondensedFrameTopInset);
 634 #endif
 635
 636   frame_background_->PaintMaximized(canvas, this);
 637
 638   // TODO(jamescook): Migrate this into FrameBackground.
 639   if (!browser_view()->IsToolbarVisible()) {
 640     // There's no toolbar to edge the frame border, so we need to draw a bottom
 641     // edge.  The graphic we use for this has a built in client edge, so we clip
 642     // it off the bottom.
 643     gfx::ImageSkia* top_center = tp->GetImageSkiaNamed(IDR_APP_TOP_CENTER);
 644     int edge_height = top_center->height() - kClientEdgeThickness;
 645     canvas->TileImageInt(*top_center, 0,
 646         frame()->client_view()->y() - edge_height, width(), edge_height);
 647   }
 648 }
 649
 650 void OpaqueBrowserFrameView::PaintToolbarBackground(gfx::Canvas* canvas) {
 651   gfx::Rect toolbar_bounds(browser_view()->GetToolbarBounds());
 652   if (toolbar_bounds.IsEmpty())
 653     return;
 654   gfx::Point toolbar_origin(toolbar_bounds.origin());
 655   ConvertPointToTarget(browser_view(), this, &toolbar_origin);
 656   toolbar_bounds.set_origin(toolbar_origin);
 657
 658   int x = toolbar_bounds.x();
 659   int w = toolbar_bounds.width();
 660   int y = toolbar_bounds.y();
 661   int h = toolbar_bounds.height();
 662
 663   // Gross hack: We split the toolbar images into two pieces, since sometimes
 664   // (popup mode) the toolbar isn't tall enough to show the whole image.  The
 665   // split happens between the top shadow section and the bottom gradient
 666   // section so that we never break the gradient.
 667   int split_point = kFrameShadowThickness * 2;
 668   int bottom_y = y + split_point;
 669   ui::ThemeProvider* tp = GetThemeProvider();
 670   gfx::ImageSkia* toolbar_left = tp->GetImageSkiaNamed(
 671       IDR_CONTENT_TOP_LEFT_CORNER);
 672   int bottom_edge_height = std::min(toolbar_left->height(), h) - split_point;
 673
 674   // Split our canvas out so we can mask out the corners of the toolbar
 675   // without masking out the frame.
 676   canvas->SaveLayerAlpha(
 677       255, gfx::Rect(x - kClientEdgeThickness, y, w + kClientEdgeThickness * 3,
 678                      h));
 679
 680   // Paint the bottom rect.
 681   canvas->FillRect(gfx::Rect(x, bottom_y, w, bottom_edge_height),
 682                    tp->GetColor(ThemeProperties::COLOR_TOOLBAR));
 683
 684   // Tile the toolbar image starting at the frame edge on the left and where the
 685   // horizontal tabstrip is (or would be) on the top.
 686   gfx::ImageSkia* theme_toolbar = tp->GetImageSkiaNamed(IDR_THEME_TOOLBAR);
 687   canvas->TileImageInt(*theme_toolbar,
 688                        x + GetThemeBackgroundXInset(),
 689                        bottom_y - GetTopInset(),
 690                        x, bottom_y, w, theme_toolbar->height());
 691
 692   // Draw rounded corners for the tab.
 693   gfx::ImageSkia* toolbar_left_mask =
 694       tp->GetImageSkiaNamed(IDR_CONTENT_TOP_LEFT_CORNER_MASK);
 695   gfx::ImageSkia* toolbar_right_mask =
 696       tp->GetImageSkiaNamed(IDR_CONTENT_TOP_RIGHT_CORNER_MASK);
 697
 698   // We mask out the corners by using the DestinationIn transfer mode,
 699   // which keeps the RGB pixels from the destination and the alpha from
 700   // the source.
 701   SkPaint paint;
 702   paint.setXfermodeMode(SkXfermode::kDstIn_Mode);
 703
 704   // Mask the left edge.
 705   int left_x = x - kContentEdgeShadowThickness;
 706   canvas->DrawImageInt(*toolbar_left_mask, 0, 0, toolbar_left_mask->width(),
 707                        split_point, left_x, y, toolbar_left_mask->width(),
 708                        split_point, false, paint);
 709   canvas->DrawImageInt(*toolbar_left_mask, 0,
 710       toolbar_left_mask->height() - bottom_edge_height,
 711       toolbar_left_mask->width(), bottom_edge_height, left_x, bottom_y,
 712       toolbar_left_mask->width(), bottom_edge_height, false, paint);
 713
 714   // Mask the right edge.
 715   int right_x =
 716       x + w - toolbar_right_mask->width() + kContentEdgeShadowThickness;
 717   canvas->DrawImageInt(*toolbar_right_mask, 0, 0, toolbar_right_mask->width(),
 718                        split_point, right_x, y, toolbar_right_mask->width(),
 719                        split_point, false, paint);
 720   canvas->DrawImageInt(*toolbar_right_mask, 0,
 721       toolbar_right_mask->height() - bottom_edge_height,
 722       toolbar_right_mask->width(), bottom_edge_height, right_x, bottom_y,
 723       toolbar_right_mask->width(), bottom_edge_height, false, paint);
 724   canvas->Restore();
 725
 726   canvas->DrawImageInt(*toolbar_left, 0, 0, toolbar_left->width(), split_point,
 727                        left_x, y, toolbar_left->width(), split_point, false);
 728   canvas->DrawImageInt(*toolbar_left, 0,
 729       toolbar_left->height() - bottom_edge_height, toolbar_left->width(),
 730       bottom_edge_height, left_x, bottom_y, toolbar_left->width(),
 731       bottom_edge_height, false);
 732
 733   gfx::ImageSkia* toolbar_center =
 734       tp->GetImageSkiaNamed(IDR_CONTENT_TOP_CENTER);
 735   canvas->TileImageInt(*toolbar_center, 0, 0, left_x + toolbar_left->width(),
 736       y, right_x - (left_x + toolbar_left->width()),
 737       split_point);
 738
 739   gfx::ImageSkia* toolbar_right = tp->GetImageSkiaNamed(
 740       IDR_CONTENT_TOP_RIGHT_CORNER);
 741   canvas->DrawImageInt(*toolbar_right, 0, 0, toolbar_right->width(),
 742       split_point, right_x, y, toolbar_right->width(), split_point, false);
 743   canvas->DrawImageInt(*toolbar_right, 0,
 744       toolbar_right->height() - bottom_edge_height, toolbar_right->width(),
 745       bottom_edge_height, right_x, bottom_y, toolbar_right->width(),
 746       bottom_edge_height, false);
 747
 748   // Draw the content/toolbar separator.
 749   canvas->FillRect(
 750       gfx::Rect(x + kClientEdgeThickness,
 751                 toolbar_bounds.bottom() - kClientEdgeThickness,
 752                 w - (2 * kClientEdgeThickness),
 753                 kClientEdgeThickness),
 754       ThemeProperties::GetDefaultColor(
 755           ThemeProperties::COLOR_TOOLBAR_SEPARATOR));
 756 }
 757
 758 void OpaqueBrowserFrameView::PaintRestoredClientEdge(gfx::Canvas* canvas) {
 759   ui::ThemeProvider* tp = GetThemeProvider();
 760   int client_area_top = frame()->client_view()->y();
 761   int image_top = client_area_top;
 762
 763   gfx::Rect client_area_bounds =
 764       layout_->CalculateClientAreaBounds(width(), height());
 765   SkColor toolbar_color = tp->GetColor(ThemeProperties::COLOR_TOOLBAR);
 766
 767   if (browser_view()->IsToolbarVisible()) {
 768     // The client edge images always start below the toolbar corner images.  The
 769     // client edge filled rects start there or at the bottom of the toolbar,
 770     // whichever is shorter.
 771     gfx::Rect toolbar_bounds(browser_view()->GetToolbarBounds());
 772
 773     gfx::ImageSkia* content_top_left_corner =
 774         tp->GetImageSkiaNamed(IDR_CONTENT_TOP_LEFT_CORNER);
 775     // TODO(oshima): Sanity checks for crbug.com/374273. Remove when it's fixed.
 776     CHECK(content_top_left_corner);
 777     CHECK(!content_top_left_corner->isNull());
 778
 779     image_top += toolbar_bounds.y() + content_top_left_corner->height();
 780     client_area_top = std::min(image_top,
 781         client_area_top + toolbar_bounds.bottom() - kClientEdgeThickness);
 782   } else if (!browser_view()->IsTabStripVisible()) {
 783     // The toolbar isn't going to draw a client edge for us, so draw one
 784     // ourselves.
 785     gfx::ImageSkia* top_left = tp->GetImageSkiaNamed(IDR_APP_TOP_LEFT);
 786     gfx::ImageSkia* top_center = tp->GetImageSkiaNamed(IDR_APP_TOP_CENTER);
 787     gfx::ImageSkia* top_right = tp->GetImageSkiaNamed(IDR_APP_TOP_RIGHT);
 788     int top_edge_y = client_area_top - top_center->height();
 789     int height = client_area_top - top_edge_y;
 790
 791     canvas->DrawImageInt(*top_left, 0, 0, top_left->width(), height,
 792         client_area_bounds.x() - top_left->width(), top_edge_y,
 793         top_left->width(), height, false);
 794     canvas->TileImageInt(*top_center, 0, 0, client_area_bounds.x(), top_edge_y,
 795       client_area_bounds.width(), std::min(height, top_center->height()));
 796     canvas->DrawImageInt(*top_right, 0, 0, top_right->width(), height,
 797         client_area_bounds.right(), top_edge_y,
 798         top_right->width(), height, false);
 799
 800     // Draw the toolbar color across the top edge.
 801     canvas->FillRect(gfx::Rect(client_area_bounds.x() - kClientEdgeThickness,
 802         client_area_top - kClientEdgeThickness,
 803         client_area_bounds.width() + (2 * kClientEdgeThickness),
 804         kClientEdgeThickness), toolbar_color);
 805   }
 806
 807   int client_area_bottom =
 808       std::max(client_area_top, height() - NonClientBorderThickness());
 809   int image_height = client_area_bottom - image_top;
 810
 811   // Draw the client edge images.
 812   gfx::ImageSkia* right = tp->GetImageSkiaNamed(IDR_CONTENT_RIGHT_SIDE);
 813   canvas->TileImageInt(*right, client_area_bounds.right(), image_top,
 814                        right->width(), image_height);
 815   canvas->DrawImageInt(
 816       *tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_RIGHT_CORNER),
 817       client_area_bounds.right(), client_area_bottom);
 818   gfx::ImageSkia* bottom = tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_CENTER);
 819   canvas->TileImageInt(*bottom, client_area_bounds.x(),
 820       client_area_bottom, client_area_bounds.width(),
 821       bottom->height());
 822   gfx::ImageSkia* bottom_left =
 823       tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_LEFT_CORNER);
 824   canvas->DrawImageInt(*bottom_left,
 825       client_area_bounds.x() - bottom_left->width(), client_area_bottom);
 826   gfx::ImageSkia* left = tp->GetImageSkiaNamed(IDR_CONTENT_LEFT_SIDE);
 827   canvas->TileImageInt(*left, client_area_bounds.x() - left->width(),
 828                        image_top, left->width(), image_height);
 829
 830   // Draw the toolbar color so that the client edges show the right color even
 831   // where not covered by the toolbar image.  NOTE: We do this after drawing the
 832   // images because the images are meant to alpha-blend atop the frame whereas
 833   // these rects are meant to be fully opaque, without anything overlaid.
 834   canvas->FillRect(gfx::Rect(client_area_bounds.x() - kClientEdgeThickness,
 835       client_area_top, kClientEdgeThickness,
 836       client_area_bottom + kClientEdgeThickness - client_area_top),
 837        toolbar_color);
 838   canvas->FillRect(gfx::Rect(client_area_bounds.x(), client_area_bottom,
 839                              client_area_bounds.width(), kClientEdgeThickness),
 840                    toolbar_color);
 841   canvas->FillRect(gfx::Rect(client_area_bounds.right(), client_area_top,
 842       kClientEdgeThickness,
 843       client_area_bottom + kClientEdgeThickness - client_area_top),
 844       toolbar_color);
 845 }