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/themes/theme_properties.h"
  16 #include "chrome/browser/ui/views/avatar_label.h"
  17 #include "chrome/browser/ui/views/avatar_menu_button.h"
  18 #include "chrome/browser/ui/views/frame/browser_frame.h"
  19 #include "chrome/browser/ui/views/frame/browser_view.h"
  20 #include "chrome/browser/ui/views/frame/opaque_browser_frame_view_layout.h"
  21 #include "chrome/browser/ui/views/frame/opaque_browser_frame_view_platform_specific.h"
  22 #include "chrome/browser/ui/views/new_avatar_button.h"
  23 #include "chrome/browser/ui/views/tab_icon_view.h"
  24 #include "chrome/browser/ui/views/tabs/tab_strip.h"
  25 #include "chrome/browser/ui/views/theme_image_mapper.h"
  26 #include "chrome/browser/ui/views/toolbar/toolbar_view.h"
  27 #include "chrome/common/pref_names.h"
  28 #include "chrome/common/profile_management_switches.h"
  29 #include "content/public/browser/notification_service.h"
  30 #include "content/public/browser/web_contents.h"
  31 #include "grit/chromium_strings.h"
  32 #include "grit/generated_resources.h"
  33 #include "grit/theme_resources.h"
  34 #include "grit/ui_resources.h"
  35 #include "ui/accessibility/ax_view_state.h"
  36 #include "ui/base/hit_test.h"
  37 #include "ui/base/l10n/l10n_util.h"
  38 #include "ui/base/resource/resource_bundle.h"
  39 #include "ui/base/theme_provider.h"
  40 #include "ui/gfx/canvas.h"
  41 #include "ui/gfx/font_list.h"
  42 #include "ui/gfx/image/image.h"
  43 #include "ui/gfx/image/image_skia.h"
  44 #include "ui/gfx/path.h"
  45 #include "ui/gfx/rect_conversions.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   if (OpaqueBrowserFrameViewLayout::ShouldAddDefaultCaptionButtons()) {
 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
 131   // Initializing the TabIconView is expensive, so only do it if we need to.
 132   if (browser_view->ShouldShowWindowIcon()) {
 133     window_icon_ = new TabIconView(this, this);
 134     window_icon_->set_is_light(true);
 135     window_icon_->set_id(VIEW_ID_WINDOW_ICON);
 136     AddChildView(window_icon_);
 137     window_icon_->Update();
 138   }
 139
 140   window_title_ = new views::Label(
 141       browser_view->GetWindowTitle(),
 142       gfx::FontList(BrowserFrame::GetTitleFontList()));
 143   window_title_->SetVisible(browser_view->ShouldShowWindowTitle());
 144   window_title_->SetEnabledColor(SK_ColorWHITE);
 145   // TODO(msw): Use a transparent background color as a workaround to use the
 146   // gfx::Canvas::NO_SUBPIXEL_RENDERING flag and avoid some visual artifacts.
 147   window_title_->SetBackgroundColor(0x00000000);
 148   window_title_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
 149   window_title_->set_id(VIEW_ID_WINDOW_TITLE);
 150   AddChildView(window_title_);
 151
 152   if (browser_view->IsRegularOrGuestSession() &&
 153       switches::IsNewProfileManagement())
 154     UpdateNewStyleAvatarInfo(this, NewAvatarButton::THEMED_BUTTON);
 155   else
 156     UpdateAvatarInfo();
 157
 158   if (!browser_view->IsOffTheRecord()) {
 159     registrar_.Add(this, chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED,
 160                    content::NotificationService::AllSources());
 161   }
 162
 163   platform_observer_.reset(OpaqueBrowserFrameViewPlatformSpecific::Create(
 164       this, layout_, browser_view->browser()->profile()));
 165 }
 166
 167 OpaqueBrowserFrameView::~OpaqueBrowserFrameView() {
 168 }
 169
 170 ///////////////////////////////////////////////////////////////////////////////
 171 // OpaqueBrowserFrameView, BrowserNonClientFrameView implementation:
 172
 173 gfx::Rect OpaqueBrowserFrameView::GetBoundsForTabStrip(
 174     views::View* tabstrip) const {
 175   if (!tabstrip)
 176     return gfx::Rect();
 177
 178   return layout_->GetBoundsForTabStrip(tabstrip->GetPreferredSize(), width());
 179 }
 180
 181 int OpaqueBrowserFrameView::GetTopInset() const {
 182   return browser_view()->IsTabStripVisible() ?
 183       layout_->GetTabStripInsetsTop(false) :
 184       layout_->NonClientTopBorderHeight(false);
 185 }
 186
 187 int OpaqueBrowserFrameView::GetThemeBackgroundXInset() const {
 188   return 0;
 189 }
 190
 191 void OpaqueBrowserFrameView::UpdateThrobber(bool running) {
 192   if (window_icon_)
 193     window_icon_->Update();
 194 }
 195
 196 gfx::Size OpaqueBrowserFrameView::GetMinimumSize() {
 197   return layout_->GetMinimumSize(width());
 198 }
 199
 200 ///////////////////////////////////////////////////////////////////////////////
 201 // OpaqueBrowserFrameView, views::NonClientFrameView implementation:
 202
 203 gfx::Rect OpaqueBrowserFrameView::GetBoundsForClientView() const {
 204   return layout_->client_view_bounds();
 205 }
 206
 207 gfx::Rect OpaqueBrowserFrameView::GetWindowBoundsForClientBounds(
 208     const gfx::Rect& client_bounds) const {
 209   return layout_->GetWindowBoundsForClientBounds(client_bounds);
 210 }
 211
 212 int OpaqueBrowserFrameView::NonClientHitTest(const gfx::Point& point) {
 213   if (!bounds().Contains(point))
 214     return HTNOWHERE;
 215
 216   // See if the point is within the avatar menu button or within the avatar
 217   // label.
 218   if ((avatar_button() &&
 219        avatar_button()->GetMirroredBounds().Contains(point)) ||
 220       (avatar_label() && avatar_label()->GetMirroredBounds().Contains(point)) ||
 221       (new_avatar_button() &&
 222        new_avatar_button()->GetMirroredBounds().Contains(point)))
 223     return HTCLIENT;
 224
 225   int frame_component = frame()->client_view()->NonClientHitTest(point);
 226
 227   // See if we're in the sysmenu region.  We still have to check the tabstrip
 228   // first so that clicks in a tab don't get treated as sysmenu clicks.
 229   gfx::Rect sysmenu_rect(IconBounds());
 230   // In maximized mode we extend the rect to the screen corner to take advantage
 231   // of Fitts' Law.
 232   if (layout_->IsTitleBarCondensed())
 233     sysmenu_rect.SetRect(0, 0, sysmenu_rect.right(), sysmenu_rect.bottom());
 234   sysmenu_rect.set_x(GetMirroredXForRect(sysmenu_rect));
 235   if (sysmenu_rect.Contains(point))
 236     return (frame_component == HTCLIENT) ? HTCLIENT : HTSYSMENU;
 237
 238   if (frame_component != HTNOWHERE)
 239     return frame_component;
 240
 241   // Then see if the point is within any of the window controls.
 242   if (close_button_ && close_button_->visible() &&
 243       close_button_->GetMirroredBounds().Contains(point))
 244     return HTCLOSE;
 245   if (restore_button_ && restore_button_->visible() &&
 246       restore_button_->GetMirroredBounds().Contains(point))
 247     return HTMAXBUTTON;
 248   if (maximize_button_ && maximize_button_->visible() &&
 249       maximize_button_->GetMirroredBounds().Contains(point))
 250     return HTMAXBUTTON;
 251   if (minimize_button_ && minimize_button_->visible() &&
 252       minimize_button_->GetMirroredBounds().Contains(point))
 253     return HTMINBUTTON;
 254
 255   views::WidgetDelegate* delegate = frame()->widget_delegate();
 256   if (!delegate) {
 257     LOG(WARNING) << "delegate is NULL, returning safe default.";
 258     return HTCAPTION;
 259   }
 260   int window_component = GetHTComponentForFrame(point, TopResizeHeight(),
 261       NonClientBorderThickness(), kResizeAreaCornerSize, kResizeAreaCornerSize,
 262       delegate->CanResize());
 263   // Fall back to the caption if no other component matches.
 264   return (window_component == HTNOWHERE) ? HTCAPTION : window_component;
 265 }
 266
 267 void OpaqueBrowserFrameView::GetWindowMask(const gfx::Size& size,
 268                                            gfx::Path* window_mask) {
 269   DCHECK(window_mask);
 270
 271   if (layout_->IsTitleBarCondensed() || frame()->IsFullscreen())
 272     return;
 273
 274   views::GetDefaultWindowMask(size, window_mask);
 275 }
 276
 277 void OpaqueBrowserFrameView::ResetWindowControls() {
 278   if (!OpaqueBrowserFrameViewLayout::ShouldAddDefaultCaptionButtons())
 279     return;
 280   restore_button_->SetState(views::CustomButton::STATE_NORMAL);
 281   minimize_button_->SetState(views::CustomButton::STATE_NORMAL);
 282   maximize_button_->SetState(views::CustomButton::STATE_NORMAL);
 283   // The close button isn't affected by this constraint.
 284 }
 285
 286 void OpaqueBrowserFrameView::UpdateWindowIcon() {
 287   window_icon_->SchedulePaint();
 288 }
 289
 290 void OpaqueBrowserFrameView::UpdateWindowTitle() {
 291   if (!frame()->IsFullscreen())
 292     window_title_->SchedulePaint();
 293 }
 294
 295 ///////////////////////////////////////////////////////////////////////////////
 296 // OpaqueBrowserFrameView, views::View overrides:
 297
 298 bool OpaqueBrowserFrameView::HitTestRect(const gfx::Rect& rect) const {
 299   if (!views::View::HitTestRect(rect)) {
 300     // |rect| is outside OpaqueBrowserFrameView's bounds.
 301     return false;
 302   }
 303
 304   // If the rect is outside the bounds of the client area, claim it.
 305   gfx::RectF rect_in_client_view_coords_f(rect);
 306   View::ConvertRectToTarget(this, frame()->client_view(),
 307       &rect_in_client_view_coords_f);
 308   gfx::Rect rect_in_client_view_coords = gfx::ToEnclosingRect(
 309       rect_in_client_view_coords_f);
 310   if (!frame()->client_view()->HitTestRect(rect_in_client_view_coords))
 311     return true;
 312
 313   // Otherwise, claim |rect| only if it is above the bottom of the tabstrip in
 314   // a non-tab portion.
 315   TabStrip* tabstrip = browser_view()->tabstrip();
 316   if (!tabstrip || !browser_view()->IsTabStripVisible())
 317     return false;
 318
 319   gfx::RectF rect_in_tabstrip_coords_f(rect);
 320   View::ConvertRectToTarget(this, tabstrip, &rect_in_tabstrip_coords_f);
 321   gfx::Rect rect_in_tabstrip_coords = gfx::ToEnclosingRect(
 322       rect_in_tabstrip_coords_f);
 323   if (rect_in_tabstrip_coords.bottom() > tabstrip->GetLocalBounds().bottom()) {
 324     // |rect| is below the tabstrip.
 325     return false;
 326   }
 327
 328   if (tabstrip->HitTestRect(rect_in_tabstrip_coords)) {
 329     // Claim |rect| if it is in a non-tab portion of the tabstrip.
 330     return tabstrip->IsRectInWindowCaption(rect_in_tabstrip_coords);
 331   }
 332
 333   // The window switcher button is to the right of the tabstrip but is
 334   // part of the client view.
 335   views::View* window_switcher_button =
 336       browser_view()->window_switcher_button();
 337   if (window_switcher_button && window_switcher_button->visible()) {
 338     gfx::RectF rect_in_window_switcher_coords_f(rect);
 339     View::ConvertRectToTarget(this, window_switcher_button,
 340         &rect_in_window_switcher_coords_f);
 341     gfx::Rect rect_in_window_switcher_coords = gfx::ToEnclosingRect(
 342         rect_in_window_switcher_coords_f);
 343
 344     if (window_switcher_button->HitTestRect(rect_in_window_switcher_coords))
 345       return false;
 346   }
 347
 348   // We claim |rect| because it is above the bottom of the tabstrip, but
 349   // neither in the tabstrip nor in the window switcher button. In particular,
 350   // the avatar label/button is left of the tabstrip and the window controls
 351   // are right of the tabstrip.
 352   return true;
 353 }
 354
 355 void OpaqueBrowserFrameView::GetAccessibleState(
 356     ui::AXViewState* state) {
 357   state->role = ui::AX_ROLE_TITLE_BAR;
 358 }
 359
 360 ///////////////////////////////////////////////////////////////////////////////
 361 // OpaqueBrowserFrameView, views::ButtonListener implementation:
 362
 363 void OpaqueBrowserFrameView::ButtonPressed(views::Button* sender,
 364                                            const ui::Event& event) {
 365   if (sender == minimize_button_) {
 366     frame()->Minimize();
 367   } else if (sender == maximize_button_) {
 368     frame()->Maximize();
 369   } else if (sender == restore_button_) {
 370     frame()->Restore();
 371   } else if (sender == close_button_) {
 372     frame()->Close();
 373   } else if (sender == new_avatar_button()) {
 374     browser_view()->ShowAvatarBubbleFromAvatarButton(
 375         BrowserWindow::AVATAR_BUBBLE_MODE_DEFAULT);
 376   }
 377 }
 378
 379 void OpaqueBrowserFrameView::OnMenuButtonClicked(views::View* source,
 380                                                  const gfx::Point& point) {
 381 #if defined(OS_LINUX)
 382   views::MenuRunner menu_runner(frame()->GetSystemMenuModel());
 383   ignore_result(menu_runner.RunMenuAt(browser_view()->GetWidget(),
 384                                       window_icon_,
 385                                       window_icon_->GetBoundsInScreen(),
 386                                       views::MenuItemView::TOPLEFT,
 387                                       ui::MENU_SOURCE_MOUSE,
 388                                       views::MenuRunner::HAS_MNEMONICS));
 389 #endif
 390 }
 391
 392 ///////////////////////////////////////////////////////////////////////////////
 393 // OpaqueBrowserFrameView, TabIconView::TabContentsProvider implementation:
 394
 395 bool OpaqueBrowserFrameView::ShouldTabIconViewAnimate() const {
 396   // This function is queried during the creation of the window as the
 397   // TabIconView we host is initialized, so we need to NULL check the selected
 398   // WebContents because in this condition there is not yet a selected tab.
 399   WebContents* current_tab = browser_view()->GetActiveWebContents();
 400   return current_tab ? current_tab->IsLoading() : false;
 401 }
 402
 403 gfx::ImageSkia OpaqueBrowserFrameView::GetFaviconForTabIconView() {
 404   views::WidgetDelegate* delegate = frame()->widget_delegate();
 405   if (!delegate) {
 406     LOG(WARNING) << "delegate is NULL, returning safe default.";
 407     return gfx::ImageSkia();
 408   }
 409   return delegate->GetWindowIcon();
 410 }
 411
 412 ///////////////////////////////////////////////////////////////////////////////
 413 // OpaqueBrowserFrameView, protected:
 414
 415 void OpaqueBrowserFrameView::Observe(
 416     int type,
 417     const content::NotificationSource& source,
 418     const content::NotificationDetails& details) {
 419   switch (type) {
 420     case chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED:
 421       if (browser_view() ->IsRegularOrGuestSession() &&
 422           switches::IsNewProfileManagement())
 423         UpdateNewStyleAvatarInfo(this, NewAvatarButton::THEMED_BUTTON);
 424       else
 425         UpdateAvatarInfo();
 426       break;
 427     default:
 428       NOTREACHED() << "Got a notification we didn't register for!";
 429       break;
 430   }
 431 }
 432
 433 ///////////////////////////////////////////////////////////////////////////////
 434 // OpaqueBrowserFrameView, OpaqueBrowserFrameViewLayoutDelegate implementation:
 435
 436 bool OpaqueBrowserFrameView::ShouldShowWindowIcon() const {
 437   views::WidgetDelegate* delegate = frame()->widget_delegate();
 438   return ShouldShowWindowTitleBar() && delegate &&
 439          delegate->ShouldShowWindowIcon();
 440 }
 441
 442 bool OpaqueBrowserFrameView::ShouldShowWindowTitle() const {
 443   // |delegate| may be NULL if called from callback of InputMethodChanged while
 444   // a window is being destroyed.
 445   // See more discussion at http://crosbug.com/8958
 446   views::WidgetDelegate* delegate = frame()->widget_delegate();
 447   return ShouldShowWindowTitleBar() && delegate &&
 448          delegate->ShouldShowWindowTitle();
 449 }
 450
 451 base::string16 OpaqueBrowserFrameView::GetWindowTitle() const {
 452   return frame()->widget_delegate()->GetWindowTitle();
 453 }
 454
 455 int OpaqueBrowserFrameView::GetIconSize() const {
 456 #if defined(OS_WIN)
 457   // This metric scales up if either the titlebar height or the titlebar font
 458   // size are increased.
 459   return GetSystemMetrics(SM_CYSMICON);
 460 #else
 461   return std::max(BrowserFrame::GetTitleFontList().GetHeight(),
 462                   kIconMinimumSize);
 463 #endif
 464 }
 465
 466 bool OpaqueBrowserFrameView::ShouldLeaveOffsetNearTopBorder() const {
 467   return frame()->ShouldLeaveOffsetNearTopBorder();
 468 }
 469
 470 gfx::Size OpaqueBrowserFrameView::GetBrowserViewMinimumSize() const {
 471   return browser_view()->GetMinimumSize();
 472 }
 473
 474 bool OpaqueBrowserFrameView::ShouldShowCaptionButtons() const {
 475   if (!OpaqueBrowserFrameViewLayout::ShouldAddDefaultCaptionButtons())
 476     return false;
 477   return ShouldShowWindowTitleBar();
 478 }
 479
 480 bool OpaqueBrowserFrameView::ShouldShowAvatar() const {
 481   return browser_view()->ShouldShowAvatar();
 482 }
 483
 484 bool OpaqueBrowserFrameView::IsRegularOrGuestSession() const {
 485   return browser_view()->IsRegularOrGuestSession();
 486 }
 487
 488 gfx::ImageSkia OpaqueBrowserFrameView::GetOTRAvatarIcon() const {
 489   return browser_view()->GetOTRAvatarIcon();
 490 }
 491
 492 bool OpaqueBrowserFrameView::IsMaximized() const {
 493   return frame()->IsMaximized();
 494 }
 495
 496 bool OpaqueBrowserFrameView::IsMinimized() const {
 497   return frame()->IsMinimized();
 498 }
 499
 500 bool OpaqueBrowserFrameView::IsFullscreen() const {
 501   return frame()->IsFullscreen();
 502 }
 503
 504 bool OpaqueBrowserFrameView::IsTabStripVisible() const {
 505   return browser_view()->IsTabStripVisible();
 506 }
 507
 508 int OpaqueBrowserFrameView::GetTabStripHeight() const {
 509   return browser_view()->GetTabStripHeight();
 510 }
 511
 512 int OpaqueBrowserFrameView::GetAdditionalReservedSpaceInTabStrip() const {
 513   // We don't have the sysmenu buttons in Windows 8 metro mode. However there
 514   // are buttons like the window switcher which are drawn in the non client
 515   // are in the BrowserView. We need to ensure that the tab strip does not
 516   // draw on the window switcher button.
 517   views::View* button = browser_view()->window_switcher_button();
 518   return button ? button->width() : 0;
 519 }
 520
 521 gfx::Size OpaqueBrowserFrameView::GetTabstripPreferredSize() const {
 522   gfx::Size s = browser_view()->tabstrip()->GetPreferredSize();
 523   return s;
 524 }
 525
 526 ///////////////////////////////////////////////////////////////////////////////
 527 // OpaqueBrowserFrameView, views::View overrides:
 528
 529 void OpaqueBrowserFrameView::OnPaint(gfx::Canvas* canvas) {
 530   if (frame()->IsFullscreen())
 531     return;  // Nothing is visible, so don't bother to paint.
 532
 533   if (layout_->IsTitleBarCondensed())
 534     PaintMaximizedFrameBorder(canvas);
 535   else
 536     PaintRestoredFrameBorder(canvas);
 537
 538   // The window icon and title are painted by their respective views.
 539   /* TODO(pkasting):  If this window is active, we should also draw a drop
 540    * shadow on the title.  This is tricky, because we don't want to hardcode a
 541    * shadow color (since we want to work with various themes), but we can't
 542    * alpha-blend either (since the Windows text APIs don't really do this).
 543    * So we'd need to sample the background color at the right location and
 544    * synthesize a good shadow color. */
 545
 546   if (browser_view()->IsToolbarVisible())
 547     PaintToolbarBackground(canvas);
 548   if (!layout_->IsTitleBarCondensed())
 549     PaintRestoredClientEdge(canvas);
 550 }
 551
 552 ///////////////////////////////////////////////////////////////////////////////
 553 // OpaqueBrowserFrameView, private:
 554
 555 views::ImageButton* OpaqueBrowserFrameView::InitWindowCaptionButton(
 556     int normal_image_id,
 557     int hot_image_id,
 558     int pushed_image_id,
 559     int mask_image_id,
 560     int accessibility_string_id,
 561     ViewID view_id) {
 562   views::ImageButton* button = new views::ImageButton(this);
 563   ui::ThemeProvider* tp = frame()->GetThemeProvider();
 564   button->SetImage(views::CustomButton::STATE_NORMAL,
 565                    tp->GetImageSkiaNamed(normal_image_id));
 566   button->SetImage(views::CustomButton::STATE_HOVERED,
 567                    tp->GetImageSkiaNamed(hot_image_id));
 568   button->SetImage(views::CustomButton::STATE_PRESSED,
 569                    tp->GetImageSkiaNamed(pushed_image_id));
 570   if (browser_view()->IsBrowserTypeNormal()) {
 571     button->SetBackground(
 572         tp->GetColor(ThemeProperties::COLOR_BUTTON_BACKGROUND),
 573         tp->GetImageSkiaNamed(IDR_THEME_WINDOW_CONTROL_BACKGROUND),
 574         tp->GetImageSkiaNamed(mask_image_id));
 575   }
 576   button->SetAccessibleName(
 577       l10n_util::GetStringUTF16(accessibility_string_id));
 578   button->set_id(view_id);
 579   AddChildView(button);
 580   return button;
 581 }
 582
 583 int OpaqueBrowserFrameView::FrameBorderThickness(bool restored) const {
 584   return layout_->FrameBorderThickness(restored);
 585 }
 586
 587 int OpaqueBrowserFrameView::TopResizeHeight() const {
 588   return FrameBorderThickness(false) - kTopResizeAdjust;
 589 }
 590
 591 int OpaqueBrowserFrameView::NonClientBorderThickness() const {
 592   return layout_->NonClientBorderThickness();
 593 }
 594
 595 gfx::Rect OpaqueBrowserFrameView::IconBounds() const {
 596   return layout_->IconBounds();
 597 }
 598
 599 bool OpaqueBrowserFrameView::ShouldShowWindowTitleBar() const {
 600 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 601   // Do not show the custom title bar if the system title bar option is enabled.
 602   if (!frame()->UseCustomFrame())
 603     return false;
 604 #endif
 605
 606   // Do not show caption buttons if the window manager is forcefully providing a
 607   // title bar (e.g., in Ubuntu Unity, if the window is maximized).
 608   if (!views::ViewsDelegate::views_delegate)
 609     return true;
 610   return !views::ViewsDelegate::views_delegate->WindowManagerProvidesTitleBar(
 611               IsMaximized());
 612 }
 613
 614 void OpaqueBrowserFrameView::PaintRestoredFrameBorder(gfx::Canvas* canvas) {
 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
 620   ui::ThemeProvider* tp = GetThemeProvider();
 621   frame_background_->SetSideImages(
 622       tp->GetImageSkiaNamed(IDR_WINDOW_LEFT_SIDE),
 623       tp->GetImageSkiaNamed(IDR_WINDOW_TOP_CENTER),
 624       tp->GetImageSkiaNamed(IDR_WINDOW_RIGHT_SIDE),
 625       tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_CENTER));
 626   frame_background_->SetCornerImages(
 627       tp->GetImageSkiaNamed(IDR_WINDOW_TOP_LEFT_CORNER),
 628       tp->GetImageSkiaNamed(IDR_WINDOW_TOP_RIGHT_CORNER),
 629       tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_LEFT_CORNER),
 630       tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_RIGHT_CORNER));
 631   frame_background_->PaintRestored(canvas, this);
 632
 633   // Note: When we don't have a toolbar, we need to draw some kind of bottom
 634   // edge here.  Because the App Window graphics we use for this have an
 635   // attached client edge and their sizing algorithm is a little involved, we do
 636   // all this in PaintRestoredClientEdge().
 637 }
 638
 639 void OpaqueBrowserFrameView::PaintMaximizedFrameBorder(gfx::Canvas* canvas) {
 640   ui::ThemeProvider* tp = GetThemeProvider();
 641   frame_background_->set_frame_color(GetFrameColor());
 642   frame_background_->set_theme_image(GetFrameImage());
 643   frame_background_->set_theme_overlay_image(GetFrameOverlayImage());
 644   frame_background_->set_top_area_height(GetTopAreaHeight());
 645 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 646   // The window manager typically shows a gradient in the native title bar (when
 647   // the system title bar pref is set, or when maximized on Ubuntu). Hide the
 648   // gradient in the tab strip (by shifting it up vertically) to avoid a
 649   // double-gradient effect.
 650   if (tp->UsingNativeTheme())
 651     frame_background_->set_maximized_top_inset(kGTKThemeCondensedFrameTopInset);
 652 #endif
 653
 654   frame_background_->PaintMaximized(canvas, this);
 655
 656   // TODO(jamescook): Migrate this into FrameBackground.
 657   if (!browser_view()->IsToolbarVisible()) {
 658     // There's no toolbar to edge the frame border, so we need to draw a bottom
 659     // edge.  The graphic we use for this has a built in client edge, so we clip
 660     // it off the bottom.
 661     gfx::ImageSkia* top_center = tp->GetImageSkiaNamed(IDR_APP_TOP_CENTER);
 662     int edge_height = top_center->height() - kClientEdgeThickness;
 663     canvas->TileImageInt(*top_center, 0,
 664         frame()->client_view()->y() - edge_height, width(), edge_height);
 665   }
 666 }
 667
 668 void OpaqueBrowserFrameView::PaintToolbarBackground(gfx::Canvas* canvas) {
 669   gfx::Rect toolbar_bounds(browser_view()->GetToolbarBounds());
 670   if (toolbar_bounds.IsEmpty())
 671     return;
 672   gfx::Point toolbar_origin(toolbar_bounds.origin());
 673   ConvertPointToTarget(browser_view(), this, &toolbar_origin);
 674   toolbar_bounds.set_origin(toolbar_origin);
 675
 676   int x = toolbar_bounds.x();
 677   int w = toolbar_bounds.width();
 678   int y = toolbar_bounds.y();
 679   int h = toolbar_bounds.height();
 680
 681   // Gross hack: We split the toolbar images into two pieces, since sometimes
 682   // (popup mode) the toolbar isn't tall enough to show the whole image.  The
 683   // split happens between the top shadow section and the bottom gradient
 684   // section so that we never break the gradient.
 685   int split_point = kFrameShadowThickness * 2;
 686   int bottom_y = y + split_point;
 687   ui::ThemeProvider* tp = GetThemeProvider();
 688   gfx::ImageSkia* toolbar_left = tp->GetImageSkiaNamed(
 689       IDR_CONTENT_TOP_LEFT_CORNER);
 690   int bottom_edge_height = std::min(toolbar_left->height(), h) - split_point;
 691
 692   // Split our canvas out so we can mask out the corners of the toolbar
 693   // without masking out the frame.
 694   canvas->SaveLayerAlpha(
 695       255, gfx::Rect(x - kClientEdgeThickness, y, w + kClientEdgeThickness * 3,
 696                      h));
 697
 698   // Paint the bottom rect.
 699   canvas->FillRect(gfx::Rect(x, bottom_y, w, bottom_edge_height),
 700                    tp->GetColor(ThemeProperties::COLOR_TOOLBAR));
 701
 702   // Tile the toolbar image starting at the frame edge on the left and where the
 703   // horizontal tabstrip is (or would be) on the top.
 704   gfx::ImageSkia* theme_toolbar = tp->GetImageSkiaNamed(IDR_THEME_TOOLBAR);
 705   canvas->TileImageInt(*theme_toolbar,
 706                        x + GetThemeBackgroundXInset(),
 707                        bottom_y - GetTopInset(),
 708                        x, bottom_y, w, theme_toolbar->height());
 709
 710   // Draw rounded corners for the tab.
 711   gfx::ImageSkia* toolbar_left_mask =
 712       tp->GetImageSkiaNamed(IDR_CONTENT_TOP_LEFT_CORNER_MASK);
 713   gfx::ImageSkia* toolbar_right_mask =
 714       tp->GetImageSkiaNamed(IDR_CONTENT_TOP_RIGHT_CORNER_MASK);
 715
 716   // We mask out the corners by using the DestinationIn transfer mode,
 717   // which keeps the RGB pixels from the destination and the alpha from
 718   // the source.
 719   SkPaint paint;
 720   paint.setXfermodeMode(SkXfermode::kDstIn_Mode);
 721
 722   // Mask the left edge.
 723   int left_x = x - kContentEdgeShadowThickness;
 724   canvas->DrawImageInt(*toolbar_left_mask, 0, 0, toolbar_left_mask->width(),
 725                        split_point, left_x, y, toolbar_left_mask->width(),
 726                        split_point, false, paint);
 727   canvas->DrawImageInt(*toolbar_left_mask, 0,
 728       toolbar_left_mask->height() - bottom_edge_height,
 729       toolbar_left_mask->width(), bottom_edge_height, left_x, bottom_y,
 730       toolbar_left_mask->width(), bottom_edge_height, false, paint);
 731
 732   // Mask the right edge.
 733   int right_x =
 734       x + w - toolbar_right_mask->width() + kContentEdgeShadowThickness;
 735   canvas->DrawImageInt(*toolbar_right_mask, 0, 0, toolbar_right_mask->width(),
 736                        split_point, right_x, y, toolbar_right_mask->width(),
 737                        split_point, false, paint);
 738   canvas->DrawImageInt(*toolbar_right_mask, 0,
 739       toolbar_right_mask->height() - bottom_edge_height,
 740       toolbar_right_mask->width(), bottom_edge_height, right_x, bottom_y,
 741       toolbar_right_mask->width(), bottom_edge_height, false, paint);
 742   canvas->Restore();
 743
 744   canvas->DrawImageInt(*toolbar_left, 0, 0, toolbar_left->width(), split_point,
 745                        left_x, y, toolbar_left->width(), split_point, false);
 746   canvas->DrawImageInt(*toolbar_left, 0,
 747       toolbar_left->height() - bottom_edge_height, toolbar_left->width(),
 748       bottom_edge_height, left_x, bottom_y, toolbar_left->width(),
 749       bottom_edge_height, false);
 750
 751   gfx::ImageSkia* toolbar_center =
 752       tp->GetImageSkiaNamed(IDR_CONTENT_TOP_CENTER);
 753   canvas->TileImageInt(*toolbar_center, 0, 0, left_x + toolbar_left->width(),
 754       y, right_x - (left_x + toolbar_left->width()),
 755       split_point);
 756
 757   gfx::ImageSkia* toolbar_right = tp->GetImageSkiaNamed(
 758       IDR_CONTENT_TOP_RIGHT_CORNER);
 759   canvas->DrawImageInt(*toolbar_right, 0, 0, toolbar_right->width(),
 760       split_point, right_x, y, toolbar_right->width(), split_point, false);
 761   canvas->DrawImageInt(*toolbar_right, 0,
 762       toolbar_right->height() - bottom_edge_height, toolbar_right->width(),
 763       bottom_edge_height, right_x, bottom_y, toolbar_right->width(),
 764       bottom_edge_height, false);
 765
 766   // Draw the content/toolbar separator.
 767   canvas->FillRect(
 768       gfx::Rect(x + kClientEdgeThickness,
 769                 toolbar_bounds.bottom() - kClientEdgeThickness,
 770                 w - (2 * kClientEdgeThickness),
 771                 kClientEdgeThickness),
 772       ThemeProperties::GetDefaultColor(
 773           ThemeProperties::COLOR_TOOLBAR_SEPARATOR));
 774 }
 775
 776 void OpaqueBrowserFrameView::PaintRestoredClientEdge(gfx::Canvas* canvas) {
 777   ui::ThemeProvider* tp = GetThemeProvider();
 778   int client_area_top = frame()->client_view()->y();
 779   int image_top = client_area_top;
 780
 781   gfx::Rect client_area_bounds =
 782       layout_->CalculateClientAreaBounds(width(), height());
 783   SkColor toolbar_color = tp->GetColor(ThemeProperties::COLOR_TOOLBAR);
 784
 785   if (browser_view()->IsToolbarVisible()) {
 786     // The client edge images always start below the toolbar corner images.  The
 787     // client edge filled rects start there or at the bottom of the toolbar,
 788     // whichever is shorter.
 789     gfx::Rect toolbar_bounds(browser_view()->GetToolbarBounds());
 790     image_top += toolbar_bounds.y() +
 791         tp->GetImageSkiaNamed(IDR_CONTENT_TOP_LEFT_CORNER)->height();
 792     client_area_top = std::min(image_top,
 793         client_area_top + toolbar_bounds.bottom() - kClientEdgeThickness);
 794   } else if (!browser_view()->IsTabStripVisible()) {
 795     // The toolbar isn't going to draw a client edge for us, so draw one
 796     // ourselves.
 797     gfx::ImageSkia* top_left = tp->GetImageSkiaNamed(IDR_APP_TOP_LEFT);
 798     gfx::ImageSkia* top_center = tp->GetImageSkiaNamed(IDR_APP_TOP_CENTER);
 799     gfx::ImageSkia* top_right = tp->GetImageSkiaNamed(IDR_APP_TOP_RIGHT);
 800     int top_edge_y = client_area_top - top_center->height();
 801     int height = client_area_top - top_edge_y;
 802
 803     canvas->DrawImageInt(*top_left, 0, 0, top_left->width(), height,
 804         client_area_bounds.x() - top_left->width(), top_edge_y,
 805         top_left->width(), height, false);
 806     canvas->TileImageInt(*top_center, 0, 0, client_area_bounds.x(), top_edge_y,
 807       client_area_bounds.width(), std::min(height, top_center->height()));
 808     canvas->DrawImageInt(*top_right, 0, 0, top_right->width(), height,
 809         client_area_bounds.right(), top_edge_y,
 810         top_right->width(), height, false);
 811
 812     // Draw the toolbar color across the top edge.
 813     canvas->FillRect(gfx::Rect(client_area_bounds.x() - kClientEdgeThickness,
 814         client_area_top - kClientEdgeThickness,
 815         client_area_bounds.width() + (2 * kClientEdgeThickness),
 816         kClientEdgeThickness), toolbar_color);
 817   }
 818
 819   int client_area_bottom =
 820       std::max(client_area_top, height() - NonClientBorderThickness());
 821   int image_height = client_area_bottom - image_top;
 822
 823   // Draw the client edge images.
 824   gfx::ImageSkia* right = tp->GetImageSkiaNamed(IDR_CONTENT_RIGHT_SIDE);
 825   canvas->TileImageInt(*right, client_area_bounds.right(), image_top,
 826                        right->width(), image_height);
 827   canvas->DrawImageInt(
 828       *tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_RIGHT_CORNER),
 829       client_area_bounds.right(), client_area_bottom);
 830   gfx::ImageSkia* bottom = tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_CENTER);
 831   canvas->TileImageInt(*bottom, client_area_bounds.x(),
 832       client_area_bottom, client_area_bounds.width(),
 833       bottom->height());
 834   gfx::ImageSkia* bottom_left =
 835       tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_LEFT_CORNER);
 836   canvas->DrawImageInt(*bottom_left,
 837       client_area_bounds.x() - bottom_left->width(), client_area_bottom);
 838   gfx::ImageSkia* left = tp->GetImageSkiaNamed(IDR_CONTENT_LEFT_SIDE);
 839   canvas->TileImageInt(*left, client_area_bounds.x() - left->width(),
 840                        image_top, left->width(), image_height);
 841
 842   // Draw the toolbar color so that the client edges show the right color even
 843   // where not covered by the toolbar image.  NOTE: We do this after drawing the
 844   // images because the images are meant to alpha-blend atop the frame whereas
 845   // these rects are meant to be fully opaque, without anything overlaid.
 846   canvas->FillRect(gfx::Rect(client_area_bounds.x() - kClientEdgeThickness,
 847       client_area_top, kClientEdgeThickness,
 848       client_area_bottom + kClientEdgeThickness - client_area_top),
 849        toolbar_color);
 850   canvas->FillRect(gfx::Rect(client_area_bounds.x(), client_area_bottom,
 851                              client_area_bounds.width(), kClientEdgeThickness),
 852                    toolbar_color);
 853   canvas->FillRect(gfx::Rect(client_area_bounds.right(), client_area_top,
 854       kClientEdgeThickness,
 855       client_area_bottom + kClientEdgeThickness - client_area_top),
 856       toolbar_color);
 857 }
 858
 859 SkColor OpaqueBrowserFrameView::GetFrameColor() const {
 860   bool is_incognito = browser_view()->IsOffTheRecord();
 861   ThemeProperties::OverwritableByUserThemeProperty color_id;
 862   if (ShouldPaintAsActive()) {
 863     color_id = is_incognito ?
 864                ThemeProperties::COLOR_FRAME_INCOGNITO :
 865                ThemeProperties::COLOR_FRAME;
 866   } else {
 867     color_id = is_incognito ?
 868                ThemeProperties::COLOR_FRAME_INCOGNITO_INACTIVE :
 869                ThemeProperties::COLOR_FRAME_INACTIVE;
 870   }
 871
 872   if (browser_view()->IsBrowserTypeNormal() ||
 873       platform_observer_->IsUsingNativeTheme()) {
 874     return GetThemeProvider()->GetColor(color_id);
 875   }
 876
 877   // Never theme app and popup windows unless the |platform_observer_|
 878   // requested an override.
 879   return ThemeProperties::GetDefaultColor(color_id);
 880 }
 881
 882 gfx::ImageSkia* OpaqueBrowserFrameView::GetFrameImage() const {
 883   bool is_incognito = browser_view()->IsOffTheRecord();
 884   int resource_id;
 885   if (browser_view()->IsBrowserTypeNormal()) {
 886     if (ShouldPaintAsActive()) {
 887       resource_id = is_incognito ?
 888           IDR_THEME_FRAME_INCOGNITO : IDR_THEME_FRAME;
 889     } else {
 890       resource_id = is_incognito ?
 891           IDR_THEME_FRAME_INCOGNITO_INACTIVE : IDR_THEME_FRAME_INACTIVE;
 892     }
 893     return GetThemeProvider()->GetImageSkiaNamed(resource_id);
 894   }
 895   if (ShouldPaintAsActive()) {
 896     resource_id = is_incognito ?
 897         IDR_THEME_FRAME_INCOGNITO : IDR_FRAME;
 898   } else {
 899     resource_id = is_incognito ?
 900         IDR_THEME_FRAME_INCOGNITO_INACTIVE : IDR_THEME_FRAME_INACTIVE;
 901   }
 902
 903   if (platform_observer_->IsUsingNativeTheme()) {
 904     // We want to use theme images provided by the platform theme when enabled,
 905     // even if we are an app or popup window.
 906     return GetThemeProvider()->GetImageSkiaNamed(resource_id);
 907   }
 908
 909   // Otherwise, never theme app and popup windows.
 910   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
 911   return rb.GetImageSkiaNamed(chrome::MapThemeImage(
 912       chrome::GetHostDesktopTypeForNativeWindow(
 913           browser_view()->GetNativeWindow()),
 914       resource_id));
 915 }
 916
 917 gfx::ImageSkia* OpaqueBrowserFrameView::GetFrameOverlayImage() const {
 918   ui::ThemeProvider* tp = GetThemeProvider();
 919   if (tp->HasCustomImage(IDR_THEME_FRAME_OVERLAY) &&
 920       browser_view()->IsBrowserTypeNormal() &&
 921       !browser_view()->IsOffTheRecord()) {
 922     return tp->GetImageSkiaNamed(ShouldPaintAsActive() ?
 923         IDR_THEME_FRAME_OVERLAY : IDR_THEME_FRAME_OVERLAY_INACTIVE);
 924   }
 925   return NULL;
 926 }
 927
 928 int OpaqueBrowserFrameView::GetTopAreaHeight() const {
 929   gfx::ImageSkia* frame_image = GetFrameImage();
 930   int top_area_height = frame_image->height();
 931   if (browser_view()->IsTabStripVisible()) {
 932     top_area_height = std::max(top_area_height,
 933       GetBoundsForTabStrip(browser_view()->tabstrip()).bottom());
 934   }
 935   return top_area_height;
 936 }