src/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/strings/utf_string_conversions.h"
  13 #include "chrome/browser/chrome_notification_types.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_label.h"
  22 #include "chrome/browser/ui/views/profiles/avatar_menu_button.h"
  23 #include "chrome/browser/ui/views/profiles/new_avatar_button.h"
  24 #include "chrome/browser/ui/views/tab_icon_view.h"
  25 #include "chrome/browser/ui/views/tabs/tab_strip.h"
  26 #include "chrome/browser/ui/views/theme_image_mapper.h"
  27 #include "chrome/browser/ui/views/toolbar/toolbar_view.h"
  28 #include "chrome/common/pref_names.h"
  29 #include "chrome/grit/generated_resources.h"
  30 #include "components/signin/core/common/profile_management_switches.h"
  31 #include "content/public/browser/notification_service.h"
  32 #include "content/public/browser/web_contents.h"
  33 #include "grit/theme_resources.h"
  34 #include "ui/accessibility/ax_view_state.h"
  35 #include "ui/base/hit_test.h"
  36 #include "ui/base/l10n/l10n_util.h"
  37 #include "ui/base/resource/resource_bundle.h"
  38 #include "ui/base/theme_provider.h"
  39 #include "ui/gfx/canvas.h"
  40 #include "ui/gfx/font_list.h"
  41 #include "ui/gfx/image/image.h"
  42 #include "ui/gfx/image/image_skia.h"
  43 #include "ui/gfx/path.h"
  44 #include "ui/gfx/rect_conversions.h"
  45 #include "ui/resources/grit/ui_resources.h"
  46 #include "ui/views/controls/button/image_button.h"
  47 #include "ui/views/controls/image_view.h"
  48 #include "ui/views/controls/label.h"
  49 #include "ui/views/layout/layout_constants.h"
  50 #include "ui/views/views_delegate.h"
  51 #include "ui/views/widget/root_view.h"
  52 #include "ui/views/window/frame_background.h"
  53 #include "ui/views/window/window_shape.h"
  54
  55 #if defined(OS_LINUX)
  56 #include "ui/views/controls/menu/menu_runner.h"
  57 #endif
  58
  59 using content::WebContents;
  60
  61 namespace {
  62
  63 // While resize areas on Windows are normally the same size as the window
  64 // borders, our top area is shrunk by 1 px to make it easier to move the window
  65 // around with our thinner top grabbable strip.  (Incidentally, our side and
  66 // bottom resize areas don't match the frame border thickness either -- they
  67 // span the whole nonclient area, so there's no "dead zone" for the mouse.)
  68 const int kTopResizeAdjust = 1;
  69
  70 // In the window corners, the resize areas don't actually expand bigger, but the
  71 // 16 px at the end of each edge triggers diagonal resizing.
  72 const int kResizeAreaCornerSize = 16;
  73
  74 // The content left/right images have a shadow built into them.
  75 const int kContentEdgeShadowThickness = 2;
  76
  77 // The icon never shrinks below 16 px on a side.
  78 const int kIconMinimumSize = 16;
  79
  80 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
  81 // The number of pixels to move the frame background image upwards when using
  82 // the GTK+ theme and the titlebar is condensed.
  83 const int kGTKThemeCondensedFrameTopInset = 15;
  84 #endif
  85
  86 }  // namespace
  87
  88 ///////////////////////////////////////////////////////////////////////////////
  89 // OpaqueBrowserFrameView, public:
  90
  91 OpaqueBrowserFrameView::OpaqueBrowserFrameView(BrowserFrame* frame,
  92                                                BrowserView* browser_view)
  93     : BrowserNonClientFrameView(frame, browser_view),
  94       layout_(new OpaqueBrowserFrameViewLayout(this)),
  95       minimize_button_(NULL),
  96       maximize_button_(NULL),
  97       restore_button_(NULL),
  98       close_button_(NULL),
  99       window_icon_(NULL),
 100       window_title_(NULL),
 101       frame_background_(new views::FrameBackground()) {
 102   SetLayoutManager(layout_);
 103
 104   minimize_button_ = InitWindowCaptionButton(IDR_MINIMIZE,
 105                                              IDR_MINIMIZE_H,
 106                                              IDR_MINIMIZE_P,
 107                                              IDR_MINIMIZE_BUTTON_MASK,
 108                                              IDS_ACCNAME_MINIMIZE,
 109                                              VIEW_ID_MINIMIZE_BUTTON);
 110   maximize_button_ = InitWindowCaptionButton(IDR_MAXIMIZE,
 111                                              IDR_MAXIMIZE_H,
 112                                              IDR_MAXIMIZE_P,
 113                                              IDR_MAXIMIZE_BUTTON_MASK,
 114                                              IDS_ACCNAME_MAXIMIZE,
 115                                              VIEW_ID_MAXIMIZE_BUTTON);
 116   restore_button_ = InitWindowCaptionButton(IDR_RESTORE,
 117                                             IDR_RESTORE_H,
 118                                             IDR_RESTORE_P,
 119                                             IDR_RESTORE_BUTTON_MASK,
 120                                             IDS_ACCNAME_RESTORE,
 121                                             VIEW_ID_RESTORE_BUTTON);
 122   close_button_ = InitWindowCaptionButton(IDR_CLOSE,
 123                                           IDR_CLOSE_H,
 124                                           IDR_CLOSE_P,
 125                                           IDR_CLOSE_BUTTON_MASK,
 126                                           IDS_ACCNAME_CLOSE,
 127                                           VIEW_ID_CLOSE_BUTTON);
 128
 129   // Initializing the TabIconView is expensive, so only do it if we need to.
 130   if (browser_view->ShouldShowWindowIcon()) {
 131     window_icon_ = new TabIconView(this, this);
 132     window_icon_->set_is_light(true);
 133     window_icon_->set_id(VIEW_ID_WINDOW_ICON);
 134     AddChildView(window_icon_);
 135     window_icon_->Update();
 136   }
 137
 138   window_title_ = new views::Label(
 139       browser_view->GetWindowTitle(),
 140       gfx::FontList(BrowserFrame::GetTitleFontList()));
 141   window_title_->SetVisible(browser_view->ShouldShowWindowTitle());
 142   window_title_->SetEnabledColor(SK_ColorWHITE);
 143   window_title_->SetSubpixelRenderingEnabled(false);
 144   window_title_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
 145   window_title_->set_id(VIEW_ID_WINDOW_TITLE);
 146   AddChildView(window_title_);
 147
 148   if (browser_view->IsRegularOrGuestSession() && switches::IsNewAvatarMenu())
 149     UpdateNewStyleAvatarInfo(this, NewAvatarButton::THEMED_BUTTON);
 150   else
 151     UpdateAvatarInfo();
 152
 153   if (!browser_view->IsOffTheRecord()) {
 154     registrar_.Add(this, chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED,
 155                    content::NotificationService::AllSources());
 156   }
 157
 158   platform_observer_.reset(OpaqueBrowserFrameViewPlatformSpecific::Create(
 159       this, layout_, browser_view->browser()->profile()));
 160 }
 161
 162 OpaqueBrowserFrameView::~OpaqueBrowserFrameView() {
 163 }
 164
 165 ///////////////////////////////////////////////////////////////////////////////
 166 // OpaqueBrowserFrameView, BrowserNonClientFrameView implementation:
 167
 168 gfx::Rect OpaqueBrowserFrameView::GetBoundsForTabStrip(
 169     views::View* tabstrip) const {
 170   if (!tabstrip)
 171     return gfx::Rect();
 172
 173   return layout_->GetBoundsForTabStrip(tabstrip->GetPreferredSize(), width());
 174 }
 175
 176 int OpaqueBrowserFrameView::GetTopInset() const {
 177   return browser_view()->IsTabStripVisible() ?
 178       layout_->GetTabStripInsetsTop(false) :
 179       layout_->NonClientTopBorderHeight(false);
 180 }
 181
 182 int OpaqueBrowserFrameView::GetThemeBackgroundXInset() const {
 183   return 0;
 184 }
 185
 186 void OpaqueBrowserFrameView::UpdateThrobber(bool running) {
 187   if (window_icon_)
 188     window_icon_->Update();
 189 }
 190
 191 gfx::Size OpaqueBrowserFrameView::GetMinimumSize() const {
 192   return layout_->GetMinimumSize(width());
 193 }
 194
 195 ///////////////////////////////////////////////////////////////////////////////
 196 // OpaqueBrowserFrameView, views::NonClientFrameView implementation:
 197
 198 gfx::Rect OpaqueBrowserFrameView::GetBoundsForClientView() const {
 199   return layout_->client_view_bounds();
 200 }
 201
 202 gfx::Rect OpaqueBrowserFrameView::GetWindowBoundsForClientBounds(
 203     const gfx::Rect& client_bounds) const {
 204   return layout_->GetWindowBoundsForClientBounds(client_bounds);
 205 }
 206
 207 int OpaqueBrowserFrameView::NonClientHitTest(const gfx::Point& point) {
 208   if (!bounds().Contains(point))
 209     return HTNOWHERE;
 210
 211   // See if the point is within the avatar menu button or within the avatar
 212   // label.
 213   if ((avatar_button() &&
 214        avatar_button()->GetMirroredBounds().Contains(point)) ||
 215       (avatar_label() && avatar_label()->GetMirroredBounds().Contains(point)) ||
 216       (new_avatar_button() &&
 217        new_avatar_button()->GetMirroredBounds().Contains(point)))
 218     return HTCLIENT;
 219
 220   int frame_component = frame()->client_view()->NonClientHitTest(point);
 221
 222   // See if we're in the sysmenu region.  We still have to check the tabstrip
 223   // first so that clicks in a tab don't get treated as sysmenu clicks.
 224   gfx::Rect sysmenu_rect(IconBounds());
 225   // In maximized mode we extend the rect to the screen corner to take advantage
 226   // of Fitts' Law.
 227   if (layout_->IsTitleBarCondensed())
 228     sysmenu_rect.SetRect(0, 0, sysmenu_rect.right(), sysmenu_rect.bottom());
 229   sysmenu_rect.set_x(GetMirroredXForRect(sysmenu_rect));
 230   if (sysmenu_rect.Contains(point))
 231     return (frame_component == HTCLIENT) ? HTCLIENT : HTSYSMENU;
 232
 233   if (frame_component != HTNOWHERE)
 234     return frame_component;
 235
 236   // Then see if the point is within any of the window controls.
 237   if (close_button_ && close_button_->visible() &&
 238       close_button_->GetMirroredBounds().Contains(point))
 239     return HTCLOSE;
 240   if (restore_button_ && restore_button_->visible() &&
 241       restore_button_->GetMirroredBounds().Contains(point))
 242     return HTMAXBUTTON;
 243   if (maximize_button_ && maximize_button_->visible() &&
 244       maximize_button_->GetMirroredBounds().Contains(point))
 245     return HTMAXBUTTON;
 246   if (minimize_button_ && minimize_button_->visible() &&
 247       minimize_button_->GetMirroredBounds().Contains(point))
 248     return HTMINBUTTON;
 249
 250   views::WidgetDelegate* delegate = frame()->widget_delegate();
 251   if (!delegate) {
 252     LOG(WARNING) << "delegate is NULL, returning safe default.";
 253     return HTCAPTION;
 254   }
 255   int window_component = GetHTComponentForFrame(point, TopResizeHeight(),
 256       NonClientBorderThickness(), kResizeAreaCornerSize, kResizeAreaCornerSize,
 257       delegate->CanResize());
 258   // Fall back to the caption if no other component matches.
 259   return (window_component == HTNOWHERE) ? HTCAPTION : window_component;
 260 }
 261
 262 void OpaqueBrowserFrameView::GetWindowMask(const gfx::Size& size,
 263                                            gfx::Path* window_mask) {
 264   DCHECK(window_mask);
 265
 266   if (layout_->IsTitleBarCondensed() || frame()->IsFullscreen())
 267     return;
 268
 269   views::GetDefaultWindowMask(size, window_mask);
 270 }
 271
 272 void OpaqueBrowserFrameView::ResetWindowControls() {
 273   restore_button_->SetState(views::CustomButton::STATE_NORMAL);
 274   minimize_button_->SetState(views::CustomButton::STATE_NORMAL);
 275   maximize_button_->SetState(views::CustomButton::STATE_NORMAL);
 276   // The close button isn't affected by this constraint.
 277 }
 278
 279 void OpaqueBrowserFrameView::UpdateWindowIcon() {
 280   window_icon_->SchedulePaint();
 281 }
 282
 283 void OpaqueBrowserFrameView::UpdateWindowTitle() {
 284   if (!frame()->IsFullscreen())
 285     window_title_->SchedulePaint();
 286 }
 287
 288 void OpaqueBrowserFrameView::SizeConstraintsChanged() {
 289 }
 290
 291 ///////////////////////////////////////////////////////////////////////////////
 292 // OpaqueBrowserFrameView, views::View overrides:
 293
 294 void OpaqueBrowserFrameView::GetAccessibleState(
 295     ui::AXViewState* state) {
 296   state->role = ui::AX_ROLE_TITLE_BAR;
 297 }
 298
 299 ///////////////////////////////////////////////////////////////////////////////
 300 // OpaqueBrowserFrameView, views::ButtonListener implementation:
 301
 302 void OpaqueBrowserFrameView::ButtonPressed(views::Button* sender,
 303                                            const ui::Event& event) {
 304   if (sender == minimize_button_) {
 305     frame()->Minimize();
 306   } else if (sender == maximize_button_) {
 307     frame()->Maximize();
 308   } else if (sender == restore_button_) {
 309     frame()->Restore();
 310   } else if (sender == close_button_) {
 311     frame()->Close();
 312   } else if (sender == new_avatar_button()) {
 313     browser_view()->ShowAvatarBubbleFromAvatarButton(
 314         BrowserWindow::AVATAR_BUBBLE_MODE_DEFAULT,
 315         signin::ManageAccountsParams());
 316   }
 317 }
 318
 319 void OpaqueBrowserFrameView::OnMenuButtonClicked(views::View* source,
 320                                                  const gfx::Point& point) {
 321 #if defined(OS_LINUX)
 322   views::MenuRunner menu_runner(frame()->GetSystemMenuModel(),
 323                                 views::MenuRunner::HAS_MNEMONICS);
 324   ignore_result(menu_runner.RunMenuAt(browser_view()->GetWidget(),
 325                                       window_icon_,
 326                                       window_icon_->GetBoundsInScreen(),
 327                                       views::MENU_ANCHOR_TOPLEFT,
 328                                       ui::MENU_SOURCE_MOUSE));
 329 #endif
 330 }
 331
 332 ///////////////////////////////////////////////////////////////////////////////
 333 // OpaqueBrowserFrameView, TabIconView::TabContentsProvider implementation:
 334
 335 bool OpaqueBrowserFrameView::ShouldTabIconViewAnimate() const {
 336   // This function is queried during the creation of the window as the
 337   // TabIconView we host is initialized, so we need to NULL check the selected
 338   // WebContents because in this condition there is not yet a selected tab.
 339   WebContents* current_tab = browser_view()->GetActiveWebContents();
 340   return current_tab ? current_tab->IsLoading() : false;
 341 }
 342
 343 gfx::ImageSkia OpaqueBrowserFrameView::GetFaviconForTabIconView() {
 344   views::WidgetDelegate* delegate = frame()->widget_delegate();
 345   if (!delegate) {
 346     LOG(WARNING) << "delegate is NULL, returning safe default.";
 347     return gfx::ImageSkia();
 348   }
 349   return delegate->GetWindowIcon();
 350 }
 351
 352 ///////////////////////////////////////////////////////////////////////////////
 353 // OpaqueBrowserFrameView, protected:
 354
 355 void OpaqueBrowserFrameView::Observe(
 356     int type,
 357     const content::NotificationSource& source,
 358     const content::NotificationDetails& details) {
 359   switch (type) {
 360     case chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED:
 361       if (browser_view() ->IsRegularOrGuestSession() &&
 362           switches::IsNewAvatarMenu()) {
 363         UpdateNewStyleAvatarInfo(this, NewAvatarButton::THEMED_BUTTON);
 364       } else {
 365         UpdateAvatarInfo();
 366       }
 367       break;
 368     default:
 369       NOTREACHED() << "Got a notification we didn't register for!";
 370       break;
 371   }
 372 }
 373
 374 ///////////////////////////////////////////////////////////////////////////////
 375 // OpaqueBrowserFrameView, OpaqueBrowserFrameViewLayoutDelegate implementation:
 376
 377 bool OpaqueBrowserFrameView::ShouldShowWindowIcon() const {
 378   views::WidgetDelegate* delegate = frame()->widget_delegate();
 379   return ShouldShowWindowTitleBar() && delegate &&
 380          delegate->ShouldShowWindowIcon();
 381 }
 382
 383 bool OpaqueBrowserFrameView::ShouldShowWindowTitle() const {
 384   // |delegate| may be NULL if called from callback of InputMethodChanged while
 385   // a window is being destroyed.
 386   // See more discussion at http://crosbug.com/8958
 387   views::WidgetDelegate* delegate = frame()->widget_delegate();
 388   return ShouldShowWindowTitleBar() && delegate &&
 389          delegate->ShouldShowWindowTitle();
 390 }
 391
 392 base::string16 OpaqueBrowserFrameView::GetWindowTitle() const {
 393   return frame()->widget_delegate()->GetWindowTitle();
 394 }
 395
 396 int OpaqueBrowserFrameView::GetIconSize() const {
 397 #if defined(OS_WIN)
 398   // This metric scales up if either the titlebar height or the titlebar font
 399   // size are increased.
 400   return GetSystemMetrics(SM_CYSMICON);
 401 #else
 402   return std::max(BrowserFrame::GetTitleFontList().GetHeight(),
 403                   kIconMinimumSize);
 404 #endif
 405 }
 406
 407 bool OpaqueBrowserFrameView::ShouldLeaveOffsetNearTopBorder() const {
 408   return frame()->ShouldLeaveOffsetNearTopBorder();
 409 }
 410
 411 gfx::Size OpaqueBrowserFrameView::GetBrowserViewMinimumSize() const {
 412   return browser_view()->GetMinimumSize();
 413 }
 414
 415 bool OpaqueBrowserFrameView::ShouldShowCaptionButtons() const {
 416   return ShouldShowWindowTitleBar();
 417 }
 418
 419 bool OpaqueBrowserFrameView::ShouldShowAvatar() const {
 420   return browser_view()->ShouldShowAvatar();
 421 }
 422
 423 bool OpaqueBrowserFrameView::IsRegularOrGuestSession() const {
 424   return browser_view()->IsRegularOrGuestSession();
 425 }
 426
 427 gfx::ImageSkia OpaqueBrowserFrameView::GetOTRAvatarIcon() const {
 428   return browser_view()->GetOTRAvatarIcon();
 429 }
 430
 431 bool OpaqueBrowserFrameView::IsMaximized() const {
 432   return frame()->IsMaximized();
 433 }
 434
 435 bool OpaqueBrowserFrameView::IsMinimized() const {
 436   return frame()->IsMinimized();
 437 }
 438
 439 bool OpaqueBrowserFrameView::IsFullscreen() const {
 440   return frame()->IsFullscreen();
 441 }
 442
 443 bool OpaqueBrowserFrameView::IsTabStripVisible() const {
 444   return browser_view()->IsTabStripVisible();
 445 }
 446
 447 int OpaqueBrowserFrameView::GetTabStripHeight() const {
 448   return browser_view()->GetTabStripHeight();
 449 }
 450
 451 gfx::Size OpaqueBrowserFrameView::GetTabstripPreferredSize() const {
 452   gfx::Size s = browser_view()->tabstrip()->GetPreferredSize();
 453   return s;
 454 }
 455
 456 ///////////////////////////////////////////////////////////////////////////////
 457 // OpaqueBrowserFrameView, views::View overrides:
 458
 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 ///////////////////////////////////////////////////////////////////////////////
 483 // OpaqueBrowserFrameView, private:
 484
 485 // views::NonClientFrameView:
 486 bool OpaqueBrowserFrameView::DoesIntersectRect(const views::View* target,
 487                                                const gfx::Rect& rect) const {
 488   CHECK_EQ(target, this);
 489   if (!views::ViewTargeterDelegate::DoesIntersectRect(this, rect)) {
 490     // |rect| is outside OpaqueBrowserFrameView's bounds.
 491     return false;
 492   }
 493
 494   // If the rect is outside the bounds of the client area, claim it.
 495   gfx::RectF rect_in_client_view_coords_f(rect);
 496   View::ConvertRectToTarget(this, frame()->client_view(),
 497       &rect_in_client_view_coords_f);
 498   gfx::Rect rect_in_client_view_coords = gfx::ToEnclosingRect(
 499       rect_in_client_view_coords_f);
 500   if (!frame()->client_view()->HitTestRect(rect_in_client_view_coords))
 501     return true;
 502
 503   // Otherwise, claim |rect| only if it is above the bottom of the tabstrip in
 504   // a non-tab portion.
 505   TabStrip* tabstrip = browser_view()->tabstrip();
 506   if (!tabstrip || !browser_view()->IsTabStripVisible())
 507     return false;
 508
 509   gfx::RectF rect_in_tabstrip_coords_f(rect);
 510   View::ConvertRectToTarget(this, tabstrip, &rect_in_tabstrip_coords_f);
 511   gfx::Rect rect_in_tabstrip_coords = gfx::ToEnclosingRect(
 512       rect_in_tabstrip_coords_f);
 513   if (rect_in_tabstrip_coords.bottom() > tabstrip->GetLocalBounds().bottom()) {
 514     // |rect| is below the tabstrip.
 515     return false;
 516   }
 517
 518   if (tabstrip->HitTestRect(rect_in_tabstrip_coords)) {
 519     // Claim |rect| if it is in a non-tab portion of the tabstrip.
 520     return tabstrip->IsRectInWindowCaption(rect_in_tabstrip_coords);
 521   }
 522
 523   // We claim |rect| because it is above the bottom of the tabstrip, but
 524   // not in the tabstrip itself. In particular, the avatar label/button is left
 525   // of the tabstrip and the window controls are right of the tabstrip.
 526   return true;
 527 }
 528
 529 views::ImageButton* OpaqueBrowserFrameView::InitWindowCaptionButton(
 530     int normal_image_id,
 531     int hot_image_id,
 532     int pushed_image_id,
 533     int mask_image_id,
 534     int accessibility_string_id,
 535     ViewID view_id) {
 536   views::ImageButton* button = new views::ImageButton(this);
 537   ui::ThemeProvider* tp = frame()->GetThemeProvider();
 538   button->SetImage(views::CustomButton::STATE_NORMAL,
 539                    tp->GetImageSkiaNamed(normal_image_id));
 540   button->SetImage(views::CustomButton::STATE_HOVERED,
 541                    tp->GetImageSkiaNamed(hot_image_id));
 542   button->SetImage(views::CustomButton::STATE_PRESSED,
 543                    tp->GetImageSkiaNamed(pushed_image_id));
 544   if (browser_view()->IsBrowserTypeNormal()) {
 545     button->SetBackground(
 546         tp->GetColor(ThemeProperties::COLOR_BUTTON_BACKGROUND),
 547         tp->GetImageSkiaNamed(IDR_THEME_WINDOW_CONTROL_BACKGROUND),
 548         tp->GetImageSkiaNamed(mask_image_id));
 549   }
 550   button->SetAccessibleName(
 551       l10n_util::GetStringUTF16(accessibility_string_id));
 552   button->set_id(view_id);
 553   AddChildView(button);
 554   return button;
 555 }
 556
 557 int OpaqueBrowserFrameView::FrameBorderThickness(bool restored) const {
 558   return layout_->FrameBorderThickness(restored);
 559 }
 560
 561 int OpaqueBrowserFrameView::TopResizeHeight() const {
 562   return FrameBorderThickness(false) - kTopResizeAdjust;
 563 }
 564
 565 int OpaqueBrowserFrameView::NonClientBorderThickness() const {
 566   return layout_->NonClientBorderThickness();
 567 }
 568
 569 gfx::Rect OpaqueBrowserFrameView::IconBounds() const {
 570   return layout_->IconBounds();
 571 }
 572
 573 bool OpaqueBrowserFrameView::ShouldShowWindowTitleBar() const {
 574 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 575   // Do not show the custom title bar if the system title bar option is enabled.
 576   if (!frame()->UseCustomFrame())
 577     return false;
 578 #endif
 579
 580   // Do not show caption buttons if the window manager is forcefully providing a
 581   // title bar (e.g., in Ubuntu Unity, if the window is maximized).
 582   if (!views::ViewsDelegate::views_delegate)
 583     return true;
 584   return !views::ViewsDelegate::views_delegate->WindowManagerProvidesTitleBar(
 585               IsMaximized());
 586 }
 587
 588 void OpaqueBrowserFrameView::PaintRestoredFrameBorder(gfx::Canvas* canvas) {
 589   frame_background_->set_frame_color(GetFrameColor());
 590   frame_background_->set_theme_image(GetFrameImage());
 591   frame_background_->set_theme_overlay_image(GetFrameOverlayImage());
 592   frame_background_->set_top_area_height(GetTopAreaHeight());
 593
 594   ui::ThemeProvider* tp = GetThemeProvider();
 595   frame_background_->SetSideImages(
 596       tp->GetImageSkiaNamed(IDR_WINDOW_LEFT_SIDE),
 597       tp->GetImageSkiaNamed(IDR_WINDOW_TOP_CENTER),
 598       tp->GetImageSkiaNamed(IDR_WINDOW_RIGHT_SIDE),
 599       tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_CENTER));
 600   frame_background_->SetCornerImages(
 601       tp->GetImageSkiaNamed(IDR_WINDOW_TOP_LEFT_CORNER),
 602       tp->GetImageSkiaNamed(IDR_WINDOW_TOP_RIGHT_CORNER),
 603       tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_LEFT_CORNER),
 604       tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_RIGHT_CORNER));
 605   frame_background_->PaintRestored(canvas, this);
 606
 607   // Note: When we don't have a toolbar, we need to draw some kind of bottom
 608   // edge here.  Because the App Window graphics we use for this have an
 609   // attached client edge and their sizing algorithm is a little involved, we do
 610   // all this in PaintRestoredClientEdge().
 611 }
 612
 613 void OpaqueBrowserFrameView::PaintMaximizedFrameBorder(gfx::Canvas* canvas) {
 614   ui::ThemeProvider* tp = GetThemeProvider();
 615   frame_background_->set_frame_color(GetFrameColor());
 616   frame_background_->set_theme_image(GetFrameImage());
 617   frame_background_->set_theme_overlay_image(GetFrameOverlayImage());
 618   frame_background_->set_top_area_height(GetTopAreaHeight());
 619 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 620   // The window manager typically shows a gradient in the native title bar (when
 621   // the system title bar pref is set, or when maximized on Ubuntu). Hide the
 622   // gradient in the tab strip (by shifting it up vertically) to avoid a
 623   // double-gradient effect.
 624   if (tp->UsingSystemTheme())
 625     frame_background_->set_maximized_top_inset(kGTKThemeCondensedFrameTopInset);
 626 #endif
 627
 628   frame_background_->PaintMaximized(canvas, this);
 629
 630   // TODO(jamescook): Migrate this into FrameBackground.
 631   if (!browser_view()->IsToolbarVisible()) {
 632     // There's no toolbar to edge the frame border, so we need to draw a bottom
 633     // edge.  The graphic we use for this has a built in client edge, so we clip
 634     // it off the bottom.
 635     gfx::ImageSkia* top_center = tp->GetImageSkiaNamed(IDR_APP_TOP_CENTER);
 636     int edge_height = top_center->height() - kClientEdgeThickness;
 637     canvas->TileImageInt(*top_center, 0,
 638         frame()->client_view()->y() - edge_height, width(), edge_height);
 639   }
 640 }
 641
 642 void OpaqueBrowserFrameView::PaintToolbarBackground(gfx::Canvas* canvas) {
 643   gfx::Rect toolbar_bounds(browser_view()->GetToolbarBounds());
 644   if (toolbar_bounds.IsEmpty())
 645     return;
 646   gfx::Point toolbar_origin(toolbar_bounds.origin());
 647   ConvertPointToTarget(browser_view(), this, &toolbar_origin);
 648   toolbar_bounds.set_origin(toolbar_origin);
 649
 650   int x = toolbar_bounds.x();
 651   int w = toolbar_bounds.width();
 652   int y = toolbar_bounds.y();
 653   int h = toolbar_bounds.height();
 654
 655   // Gross hack: We split the toolbar images into two pieces, since sometimes
 656   // (popup mode) the toolbar isn't tall enough to show the whole image.  The
 657   // split happens between the top shadow section and the bottom gradient
 658   // section so that we never break the gradient.
 659   int split_point = kFrameShadowThickness * 2;
 660   int bottom_y = y + split_point;
 661   ui::ThemeProvider* tp = GetThemeProvider();
 662   gfx::ImageSkia* toolbar_left = tp->GetImageSkiaNamed(
 663       IDR_CONTENT_TOP_LEFT_CORNER);
 664   int bottom_edge_height = std::min(toolbar_left->height(), h) - split_point;
 665
 666   // Split our canvas out so we can mask out the corners of the toolbar
 667   // without masking out the frame.
 668   canvas->SaveLayerAlpha(
 669       255, gfx::Rect(x - kClientEdgeThickness, y, w + kClientEdgeThickness * 3,
 670                      h));
 671
 672   // Paint the bottom rect.
 673   canvas->FillRect(gfx::Rect(x, bottom_y, w, bottom_edge_height),
 674                    tp->GetColor(ThemeProperties::COLOR_TOOLBAR));
 675
 676   // Tile the toolbar image starting at the frame edge on the left and where the
 677   // horizontal tabstrip is (or would be) on the top.
 678   gfx::ImageSkia* theme_toolbar = tp->GetImageSkiaNamed(IDR_THEME_TOOLBAR);
 679   canvas->TileImageInt(*theme_toolbar,
 680                        x + GetThemeBackgroundXInset(),
 681                        bottom_y - GetTopInset(),
 682                        x, bottom_y, w, theme_toolbar->height());
 683
 684   // Draw rounded corners for the tab.
 685   gfx::ImageSkia* toolbar_left_mask =
 686       tp->GetImageSkiaNamed(IDR_CONTENT_TOP_LEFT_CORNER_MASK);
 687   gfx::ImageSkia* toolbar_right_mask =
 688       tp->GetImageSkiaNamed(IDR_CONTENT_TOP_RIGHT_CORNER_MASK);
 689
 690   // We mask out the corners by using the DestinationIn transfer mode,
 691   // which keeps the RGB pixels from the destination and the alpha from
 692   // the source.
 693   SkPaint paint;
 694   paint.setXfermodeMode(SkXfermode::kDstIn_Mode);
 695
 696   // Mask the left edge.
 697   int left_x = x - kContentEdgeShadowThickness;
 698   canvas->DrawImageInt(*toolbar_left_mask, 0, 0, toolbar_left_mask->width(),
 699                        split_point, left_x, y, toolbar_left_mask->width(),
 700                        split_point, false, paint);
 701   canvas->DrawImageInt(*toolbar_left_mask, 0,
 702       toolbar_left_mask->height() - bottom_edge_height,
 703       toolbar_left_mask->width(), bottom_edge_height, left_x, bottom_y,
 704       toolbar_left_mask->width(), bottom_edge_height, false, paint);
 705
 706   // Mask the right edge.
 707   int right_x =
 708       x + w - toolbar_right_mask->width() + kContentEdgeShadowThickness;
 709   canvas->DrawImageInt(*toolbar_right_mask, 0, 0, toolbar_right_mask->width(),
 710                        split_point, right_x, y, toolbar_right_mask->width(),
 711                        split_point, false, paint);
 712   canvas->DrawImageInt(*toolbar_right_mask, 0,
 713       toolbar_right_mask->height() - bottom_edge_height,
 714       toolbar_right_mask->width(), bottom_edge_height, right_x, bottom_y,
 715       toolbar_right_mask->width(), bottom_edge_height, false, paint);
 716   canvas->Restore();
 717
 718   canvas->DrawImageInt(*toolbar_left, 0, 0, toolbar_left->width(), split_point,
 719                        left_x, y, toolbar_left->width(), split_point, false);
 720   canvas->DrawImageInt(*toolbar_left, 0,
 721       toolbar_left->height() - bottom_edge_height, toolbar_left->width(),
 722       bottom_edge_height, left_x, bottom_y, toolbar_left->width(),
 723       bottom_edge_height, false);
 724
 725   gfx::ImageSkia* toolbar_center =
 726       tp->GetImageSkiaNamed(IDR_CONTENT_TOP_CENTER);
 727   canvas->TileImageInt(*toolbar_center, 0, 0, left_x + toolbar_left->width(),
 728       y, right_x - (left_x + toolbar_left->width()),
 729       split_point);
 730
 731   gfx::ImageSkia* toolbar_right = tp->GetImageSkiaNamed(
 732       IDR_CONTENT_TOP_RIGHT_CORNER);
 733   canvas->DrawImageInt(*toolbar_right, 0, 0, toolbar_right->width(),
 734       split_point, right_x, y, toolbar_right->width(), split_point, false);
 735   canvas->DrawImageInt(*toolbar_right, 0,
 736       toolbar_right->height() - bottom_edge_height, toolbar_right->width(),
 737       bottom_edge_height, right_x, bottom_y, toolbar_right->width(),
 738       bottom_edge_height, false);
 739
 740   // Draw the content/toolbar separator.
 741   canvas->FillRect(
 742       gfx::Rect(x + kClientEdgeThickness,
 743                 toolbar_bounds.bottom() - kClientEdgeThickness,
 744                 w - (2 * kClientEdgeThickness),
 745                 kClientEdgeThickness),
 746       ThemeProperties::GetDefaultColor(
 747           ThemeProperties::COLOR_TOOLBAR_SEPARATOR));
 748 }
 749
 750 void OpaqueBrowserFrameView::PaintRestoredClientEdge(gfx::Canvas* canvas) {
 751   ui::ThemeProvider* tp = GetThemeProvider();
 752   int client_area_top = frame()->client_view()->y();
 753   int image_top = client_area_top;
 754
 755   gfx::Rect client_area_bounds =
 756       layout_->CalculateClientAreaBounds(width(), height());
 757   SkColor toolbar_color = tp->GetColor(ThemeProperties::COLOR_TOOLBAR);
 758
 759   if (browser_view()->IsToolbarVisible()) {
 760     // The client edge images always start below the toolbar corner images.  The
 761     // client edge filled rects start there or at the bottom of the toolbar,
 762     // whichever is shorter.
 763     gfx::Rect toolbar_bounds(browser_view()->GetToolbarBounds());
 764
 765     gfx::ImageSkia* content_top_left_corner =
 766         tp->GetImageSkiaNamed(IDR_CONTENT_TOP_LEFT_CORNER);
 767     // TODO(oshima): Sanity checks for crbug.com/374273. Remove when it's fixed.
 768     CHECK(content_top_left_corner);
 769     CHECK(!content_top_left_corner->isNull());
 770
 771     image_top += toolbar_bounds.y() + content_top_left_corner->height();
 772     client_area_top = std::min(image_top,
 773         client_area_top + toolbar_bounds.bottom() - kClientEdgeThickness);
 774   } else if (!browser_view()->IsTabStripVisible()) {
 775     // The toolbar isn't going to draw a client edge for us, so draw one
 776     // ourselves.
 777     gfx::ImageSkia* top_left = tp->GetImageSkiaNamed(IDR_APP_TOP_LEFT);
 778     gfx::ImageSkia* top_center = tp->GetImageSkiaNamed(IDR_APP_TOP_CENTER);
 779     gfx::ImageSkia* top_right = tp->GetImageSkiaNamed(IDR_APP_TOP_RIGHT);
 780     int top_edge_y = client_area_top - top_center->height();
 781     int height = client_area_top - top_edge_y;
 782
 783     canvas->DrawImageInt(*top_left, 0, 0, top_left->width(), height,
 784         client_area_bounds.x() - top_left->width(), top_edge_y,
 785         top_left->width(), height, false);
 786     canvas->TileImageInt(*top_center, 0, 0, client_area_bounds.x(), top_edge_y,
 787       client_area_bounds.width(), std::min(height, top_center->height()));
 788     canvas->DrawImageInt(*top_right, 0, 0, top_right->width(), height,
 789         client_area_bounds.right(), top_edge_y,
 790         top_right->width(), height, false);
 791
 792     // Draw the toolbar color across the top edge.
 793     canvas->FillRect(gfx::Rect(client_area_bounds.x() - kClientEdgeThickness,
 794         client_area_top - kClientEdgeThickness,
 795         client_area_bounds.width() + (2 * kClientEdgeThickness),
 796         kClientEdgeThickness), toolbar_color);
 797   }
 798
 799   int client_area_bottom =
 800       std::max(client_area_top, height() - NonClientBorderThickness());
 801   int image_height = client_area_bottom - image_top;
 802
 803   // Draw the client edge images.
 804   gfx::ImageSkia* right = tp->GetImageSkiaNamed(IDR_CONTENT_RIGHT_SIDE);
 805   canvas->TileImageInt(*right, client_area_bounds.right(), image_top,
 806                        right->width(), image_height);
 807   canvas->DrawImageInt(
 808       *tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_RIGHT_CORNER),
 809       client_area_bounds.right(), client_area_bottom);
 810   gfx::ImageSkia* bottom = tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_CENTER);
 811   canvas->TileImageInt(*bottom, client_area_bounds.x(),
 812       client_area_bottom, client_area_bounds.width(),
 813       bottom->height());
 814   gfx::ImageSkia* bottom_left =
 815       tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_LEFT_CORNER);
 816   canvas->DrawImageInt(*bottom_left,
 817       client_area_bounds.x() - bottom_left->width(), client_area_bottom);
 818   gfx::ImageSkia* left = tp->GetImageSkiaNamed(IDR_CONTENT_LEFT_SIDE);
 819   canvas->TileImageInt(*left, client_area_bounds.x() - left->width(),
 820                        image_top, left->width(), image_height);
 821
 822   // Draw the toolbar color so that the client edges show the right color even
 823   // where not covered by the toolbar image.  NOTE: We do this after drawing the
 824   // images because the images are meant to alpha-blend atop the frame whereas
 825   // these rects are meant to be fully opaque, without anything overlaid.
 826   canvas->FillRect(gfx::Rect(client_area_bounds.x() - kClientEdgeThickness,
 827       client_area_top, kClientEdgeThickness,
 828       client_area_bottom + kClientEdgeThickness - client_area_top),
 829        toolbar_color);
 830   canvas->FillRect(gfx::Rect(client_area_bounds.x(), client_area_bottom,
 831                              client_area_bounds.width(), kClientEdgeThickness),
 832                    toolbar_color);
 833   canvas->FillRect(gfx::Rect(client_area_bounds.right(), client_area_top,
 834       kClientEdgeThickness,
 835       client_area_bottom + kClientEdgeThickness - client_area_top),
 836       toolbar_color);
 837 }
 838
 839 SkColor OpaqueBrowserFrameView::GetFrameColor() const {
 840   bool is_incognito = browser_view()->IsOffTheRecord();
 841   ThemeProperties::OverwritableByUserThemeProperty color_id;
 842   if (ShouldPaintAsActive()) {
 843     color_id = is_incognito ?
 844                ThemeProperties::COLOR_FRAME_INCOGNITO :
 845                ThemeProperties::COLOR_FRAME;
 846   } else {
 847     color_id = is_incognito ?
 848                ThemeProperties::COLOR_FRAME_INCOGNITO_INACTIVE :
 849                ThemeProperties::COLOR_FRAME_INACTIVE;
 850   }
 851
 852   if (browser_view()->IsBrowserTypeNormal() ||
 853       platform_observer_->IsUsingSystemTheme()) {
 854     return GetThemeProvider()->GetColor(color_id);
 855   }
 856
 857   // Never theme app and popup windows unless the |platform_observer_|
 858   // requested an override.
 859   return ThemeProperties::GetDefaultColor(color_id);
 860 }
 861
 862 gfx::ImageSkia* OpaqueBrowserFrameView::GetFrameImage() const {
 863   bool is_incognito = browser_view()->IsOffTheRecord();
 864   int resource_id;
 865   if (browser_view()->IsBrowserTypeNormal()) {
 866     if (ShouldPaintAsActive()) {
 867       resource_id = is_incognito ?
 868           IDR_THEME_FRAME_INCOGNITO : IDR_THEME_FRAME;
 869     } else {
 870       resource_id = is_incognito ?
 871           IDR_THEME_FRAME_INCOGNITO_INACTIVE : IDR_THEME_FRAME_INACTIVE;
 872     }
 873     return GetThemeProvider()->GetImageSkiaNamed(resource_id);
 874   }
 875   if (ShouldPaintAsActive()) {
 876     resource_id = is_incognito ?
 877         IDR_THEME_FRAME_INCOGNITO : IDR_FRAME;
 878   } else {
 879     resource_id = is_incognito ?
 880         IDR_THEME_FRAME_INCOGNITO_INACTIVE : IDR_THEME_FRAME_INACTIVE;
 881   }
 882
 883   if (platform_observer_->IsUsingSystemTheme()) {
 884     // We want to use theme images provided by the system theme when enabled,
 885     // even if we are an app or popup window.
 886     return GetThemeProvider()->GetImageSkiaNamed(resource_id);
 887   }
 888
 889   // Otherwise, never theme app and popup windows.
 890   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
 891   return rb.GetImageSkiaNamed(chrome::MapThemeImage(
 892       chrome::GetHostDesktopTypeForNativeWindow(
 893           browser_view()->GetNativeWindow()),
 894       resource_id));
 895 }
 896
 897 gfx::ImageSkia* OpaqueBrowserFrameView::GetFrameOverlayImage() const {
 898   ui::ThemeProvider* tp = GetThemeProvider();
 899   if (tp->HasCustomImage(IDR_THEME_FRAME_OVERLAY) &&
 900       browser_view()->IsBrowserTypeNormal() &&
 901       !browser_view()->IsOffTheRecord()) {
 902     return tp->GetImageSkiaNamed(ShouldPaintAsActive() ?
 903         IDR_THEME_FRAME_OVERLAY : IDR_THEME_FRAME_OVERLAY_INACTIVE);
 904   }
 905   return NULL;
 906 }
 907
 908 int OpaqueBrowserFrameView::GetTopAreaHeight() const {
 909   gfx::ImageSkia* frame_image = GetFrameImage();
 910   int top_area_height = frame_image->height();
 911   if (browser_view()->IsTabStripVisible()) {
 912     top_area_height = std::max(top_area_height,
 913       GetBoundsForTabStrip(browser_view()->tabstrip()).bottom());
 914   }
 915   return top_area_height;
 916 }