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_menu_button.h"
  22 #include "chrome/browser/ui/views/profiles/new_avatar_button.h"
  23 #include "chrome/browser/ui/views/tab_icon_view.h"
  24 #include "chrome/browser/ui/views/tabs/tab_strip.h"
  25 #include "chrome/browser/ui/views/theme_image_mapper.h"
  26 #include "chrome/browser/ui/views/toolbar/toolbar_view.h"
  27 #include "chrome/grit/generated_resources.h"
  28 #include "components/signin/core/common/profile_management_switches.h"
  29 #include "content/public/browser/notification_service.h"
  30 #include "content/public/browser/web_contents.h"
  31 #include "grit/theme_resources.h"
  32 #include "ui/accessibility/ax_view_state.h"
  33 #include "ui/base/hit_test.h"
  34 #include "ui/base/l10n/l10n_util.h"
  35 #include "ui/base/resource/resource_bundle.h"
  36 #include "ui/base/theme_provider.h"
  37 #include "ui/gfx/canvas.h"
  38 #include "ui/gfx/font_list.h"
  39 #include "ui/gfx/image/image.h"
  40 #include "ui/gfx/image/image_skia.h"
  41 #include "ui/gfx/path.h"
  42 #include "ui/gfx/rect_conversions.h"
  43 #include "ui/resources/grit/ui_resources.h"
  44 #include "ui/views/controls/button/image_button.h"
  45 #include "ui/views/controls/image_view.h"
  46 #include "ui/views/controls/label.h"
  47 #include "ui/views/layout/layout_constants.h"
  48 #include "ui/views/views_delegate.h"
  49 #include "ui/views/widget/root_view.h"
  50 #include "ui/views/window/frame_background.h"
  51 #include "ui/views/window/window_shape.h"
  52
  53 #if defined(ENABLE_MANAGED_USERS)
  54 #include "chrome/browser/ui/views/profiles/supervised_user_avatar_label.h"
  55 #endif
  56
  57 #if defined(OS_LINUX)
  58 #include "ui/views/controls/menu/menu_runner.h"
  59 #endif
  60
  61 using content::WebContents;
  62
  63 namespace {
  64
  65 // While resize areas on Windows are normally the same size as the window
  66 // borders, our top area is shrunk by 1 px to make it easier to move the window
  67 // around with our thinner top grabbable strip.  (Incidentally, our side and
  68 // bottom resize areas don't match the frame border thickness either -- they
  69 // span the whole nonclient area, so there's no "dead zone" for the mouse.)
  70 const int kTopResizeAdjust = 1;
  71
  72 // In the window corners, the resize areas don't actually expand bigger, but the
  73 // 16 px at the end of each edge triggers diagonal resizing.
  74 const int kResizeAreaCornerSize = 16;
  75
  76 // The content left/right images have a shadow built into them.
  77 const int kContentEdgeShadowThickness = 2;
  78
  79 // The icon never shrinks below 16 px on a side.
  80 const int kIconMinimumSize = 16;
  81
  82 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
  83 // The number of pixels to move the frame background image upwards when using
  84 // the GTK+ theme and the titlebar is condensed.
  85 const int kGTKThemeCondensedFrameTopInset = 15;
  86 #endif
  87
  88 }  // namespace
  89
  90 ///////////////////////////////////////////////////////////////////////////////
  91 // OpaqueBrowserFrameView, public:
  92
  93 OpaqueBrowserFrameView::OpaqueBrowserFrameView(BrowserFrame* frame,
  94                                                BrowserView* browser_view)
  95     : BrowserNonClientFrameView(frame, browser_view),
  96       layout_(new OpaqueBrowserFrameViewLayout(this)),
  97       minimize_button_(NULL),
  98       maximize_button_(NULL),
  99       restore_button_(NULL),
 100       close_button_(NULL),
 101       window_icon_(NULL),
 102       window_title_(NULL),
 103       frame_background_(new views::FrameBackground()) {
 104   SetLayoutManager(layout_);
 105
 106   minimize_button_ = InitWindowCaptionButton(IDR_MINIMIZE,
 107                                              IDR_MINIMIZE_H,
 108                                              IDR_MINIMIZE_P,
 109                                              IDR_MINIMIZE_BUTTON_MASK,
 110                                              IDS_ACCNAME_MINIMIZE,
 111                                              VIEW_ID_MINIMIZE_BUTTON);
 112   maximize_button_ = InitWindowCaptionButton(IDR_MAXIMIZE,
 113                                              IDR_MAXIMIZE_H,
 114                                              IDR_MAXIMIZE_P,
 115                                              IDR_MAXIMIZE_BUTTON_MASK,
 116                                              IDS_ACCNAME_MAXIMIZE,
 117                                              VIEW_ID_MAXIMIZE_BUTTON);
 118   restore_button_ = InitWindowCaptionButton(IDR_RESTORE,
 119                                             IDR_RESTORE_H,
 120                                             IDR_RESTORE_P,
 121                                             IDR_RESTORE_BUTTON_MASK,
 122                                             IDS_ACCNAME_RESTORE,
 123                                             VIEW_ID_RESTORE_BUTTON);
 124   close_button_ = InitWindowCaptionButton(IDR_CLOSE,
 125                                           IDR_CLOSE_H,
 126                                           IDR_CLOSE_P,
 127                                           IDR_CLOSE_BUTTON_MASK,
 128                                           IDS_ACCNAME_CLOSE,
 129                                           VIEW_ID_CLOSE_BUTTON);
 130
 131   // Initializing the TabIconView is expensive, so only do it if we need to.
 132   if (browser_view->ShouldShowWindowIcon()) {
 133     window_icon_ = new TabIconView(this, this);
 134     window_icon_->set_is_light(true);
 135     window_icon_->set_id(VIEW_ID_WINDOW_ICON);
 136     AddChildView(window_icon_);
 137     window_icon_->Update();
 138   }
 139
 140   window_title_ = new views::Label(
 141       browser_view->GetWindowTitle(),
 142       gfx::FontList(BrowserFrame::GetTitleFontList()));
 143   window_title_->SetVisible(browser_view->ShouldShowWindowTitle());
 144   window_title_->SetEnabledColor(SK_ColorWHITE);
 145   window_title_->SetSubpixelRenderingEnabled(false);
 146   window_title_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
 147   window_title_->set_id(VIEW_ID_WINDOW_TITLE);
 148   AddChildView(window_title_);
 149
 150   if (browser_view->IsRegularOrGuestSession() && switches::IsNewAvatarMenu())
 151     UpdateNewStyleAvatarInfo(this, NewAvatarButton::THEMED_BUTTON);
 152   else
 153     UpdateAvatarInfo();
 154
 155   if (!browser_view->IsOffTheRecord()) {
 156     registrar_.Add(this, chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED,
 157                    content::NotificationService::AllSources());
 158   }
 159
 160   platform_observer_.reset(OpaqueBrowserFrameViewPlatformSpecific::Create(
 161       this, layout_, browser_view->browser()->profile()));
 162 }
 163
 164 OpaqueBrowserFrameView::~OpaqueBrowserFrameView() {
 165 }
 166
 167 ///////////////////////////////////////////////////////////////////////////////
 168 // OpaqueBrowserFrameView, BrowserNonClientFrameView implementation:
 169
 170 gfx::Rect OpaqueBrowserFrameView::GetBoundsForTabStrip(
 171     views::View* tabstrip) const {
 172   if (!tabstrip)
 173     return gfx::Rect();
 174
 175   return layout_->GetBoundsForTabStrip(tabstrip->GetPreferredSize(), width());
 176 }
 177
 178 int OpaqueBrowserFrameView::GetTopInset() const {
 179   return browser_view()->IsTabStripVisible() ?
 180       layout_->GetTabStripInsetsTop(false) :
 181       layout_->NonClientTopBorderHeight(false);
 182 }
 183
 184 int OpaqueBrowserFrameView::GetThemeBackgroundXInset() const {
 185   return 0;
 186 }
 187
 188 void OpaqueBrowserFrameView::UpdateThrobber(bool running) {
 189   if (window_icon_)
 190     window_icon_->Update();
 191 }
 192
 193 gfx::Size OpaqueBrowserFrameView::GetMinimumSize() const {
 194   return layout_->GetMinimumSize(width());
 195 }
 196
 197 ///////////////////////////////////////////////////////////////////////////////
 198 // OpaqueBrowserFrameView, views::NonClientFrameView implementation:
 199
 200 gfx::Rect OpaqueBrowserFrameView::GetBoundsForClientView() const {
 201   return layout_->client_view_bounds();
 202 }
 203
 204 gfx::Rect OpaqueBrowserFrameView::GetWindowBoundsForClientBounds(
 205     const gfx::Rect& client_bounds) const {
 206   return layout_->GetWindowBoundsForClientBounds(client_bounds);
 207 }
 208
 209 bool OpaqueBrowserFrameView::IsWithinAvatarMenuButtons(
 210     const gfx::Point& point) const {
 211   if (avatar_button() &&
 212      avatar_button()->GetMirroredBounds().Contains(point)) {
 213     return true;
 214   }
 215   if (new_avatar_button() &&
 216      new_avatar_button()->GetMirroredBounds().Contains(point)) {
 217     return true;
 218   }
 219
 220   return false;
 221 }
 222
 223 int OpaqueBrowserFrameView::NonClientHitTest(const gfx::Point& point) {
 224   if (!bounds().Contains(point))
 225     return HTNOWHERE;
 226
 227   // See if the point is within the avatar menu button.
 228   if (IsWithinAvatarMenuButtons(point))
 229     return HTCLIENT;
 230 #if defined(ENABLE_MANAGED_USERS)
 231   // ...or within the avatar label, if it's a supervised user.
 232   if ((supervised_user_avatar_label() &&
 233        supervised_user_avatar_label()->GetMirroredBounds().Contains(point)))
 234     return HTCLIENT;
 235 #endif
 236
 237   int frame_component = frame()->client_view()->NonClientHitTest(point);
 238
 239   // See if we're in the sysmenu region.  We still have to check the tabstrip
 240   // first so that clicks in a tab don't get treated as sysmenu clicks.
 241   gfx::Rect sysmenu_rect(IconBounds());
 242   // In maximized mode we extend the rect to the screen corner to take advantage
 243   // of Fitts' Law.
 244   if (layout_->IsTitleBarCondensed())
 245     sysmenu_rect.SetRect(0, 0, sysmenu_rect.right(), sysmenu_rect.bottom());
 246   sysmenu_rect.set_x(GetMirroredXForRect(sysmenu_rect));
 247   if (sysmenu_rect.Contains(point))
 248     return (frame_component == HTCLIENT) ? HTCLIENT : HTSYSMENU;
 249
 250   if (frame_component != HTNOWHERE)
 251     return frame_component;
 252
 253   // Then see if the point is within any of the window controls.
 254   if (close_button_ && close_button_->visible() &&
 255       close_button_->GetMirroredBounds().Contains(point))
 256     return HTCLOSE;
 257   if (restore_button_ && restore_button_->visible() &&
 258       restore_button_->GetMirroredBounds().Contains(point))
 259     return HTMAXBUTTON;
 260   if (maximize_button_ && maximize_button_->visible() &&
 261       maximize_button_->GetMirroredBounds().Contains(point))
 262     return HTMAXBUTTON;
 263   if (minimize_button_ && minimize_button_->visible() &&
 264       minimize_button_->GetMirroredBounds().Contains(point))
 265     return HTMINBUTTON;
 266
 267   views::WidgetDelegate* delegate = frame()->widget_delegate();
 268   if (!delegate) {
 269     LOG(WARNING) << "delegate is NULL, returning safe default.";
 270     return HTCAPTION;
 271   }
 272   int window_component = GetHTComponentForFrame(point, TopResizeHeight(),
 273       NonClientBorderThickness(), kResizeAreaCornerSize, kResizeAreaCornerSize,
 274       delegate->CanResize());
 275   // Fall back to the caption if no other component matches.
 276   return (window_component == HTNOWHERE) ? HTCAPTION : window_component;
 277 }
 278
 279 void OpaqueBrowserFrameView::GetWindowMask(const gfx::Size& size,
 280                                            gfx::Path* window_mask) {
 281   DCHECK(window_mask);
 282
 283   if (layout_->IsTitleBarCondensed() || frame()->IsFullscreen())
 284     return;
 285
 286   views::GetDefaultWindowMask(size, window_mask);
 287 }
 288
 289 void OpaqueBrowserFrameView::ResetWindowControls() {
 290   restore_button_->SetState(views::CustomButton::STATE_NORMAL);
 291   minimize_button_->SetState(views::CustomButton::STATE_NORMAL);
 292   maximize_button_->SetState(views::CustomButton::STATE_NORMAL);
 293   // The close button isn't affected by this constraint.
 294 }
 295
 296 void OpaqueBrowserFrameView::UpdateWindowIcon() {
 297   window_icon_->SchedulePaint();
 298 }
 299
 300 void OpaqueBrowserFrameView::UpdateWindowTitle() {
 301   if (!frame()->IsFullscreen())
 302     window_title_->SchedulePaint();
 303 }
 304
 305 void OpaqueBrowserFrameView::SizeConstraintsChanged() {
 306 }
 307
 308 ///////////////////////////////////////////////////////////////////////////////
 309 // OpaqueBrowserFrameView, views::View overrides:
 310
 311 void OpaqueBrowserFrameView::GetAccessibleState(
 312     ui::AXViewState* state) {
 313   state->role = ui::AX_ROLE_TITLE_BAR;
 314 }
 315
 316 ///////////////////////////////////////////////////////////////////////////////
 317 // OpaqueBrowserFrameView, views::ButtonListener implementation:
 318
 319 void OpaqueBrowserFrameView::ButtonPressed(views::Button* sender,
 320                                            const ui::Event& event) {
 321   if (sender == minimize_button_) {
 322     frame()->Minimize();
 323   } else if (sender == maximize_button_) {
 324     frame()->Maximize();
 325   } else if (sender == restore_button_) {
 326     frame()->Restore();
 327   } else if (sender == close_button_) {
 328     frame()->Close();
 329   } else if (sender == new_avatar_button()) {
 330     browser_view()->ShowAvatarBubbleFromAvatarButton(
 331         BrowserWindow::AVATAR_BUBBLE_MODE_DEFAULT,
 332         signin::ManageAccountsParams());
 333   }
 334 }
 335
 336 void OpaqueBrowserFrameView::OnMenuButtonClicked(views::View* source,
 337                                                  const gfx::Point& point) {
 338 #if defined(OS_LINUX)
 339   views::MenuRunner menu_runner(frame()->GetSystemMenuModel(),
 340                                 views::MenuRunner::HAS_MNEMONICS);
 341   ignore_result(menu_runner.RunMenuAt(browser_view()->GetWidget(),
 342                                       window_icon_,
 343                                       window_icon_->GetBoundsInScreen(),
 344                                       views::MENU_ANCHOR_TOPLEFT,
 345                                       ui::MENU_SOURCE_MOUSE));
 346 #endif
 347 }
 348
 349 ///////////////////////////////////////////////////////////////////////////////
 350 // OpaqueBrowserFrameView, TabIconView::TabContentsProvider implementation:
 351
 352 bool OpaqueBrowserFrameView::ShouldTabIconViewAnimate() const {
 353   // This function is queried during the creation of the window as the
 354   // TabIconView we host is initialized, so we need to NULL check the selected
 355   // WebContents because in this condition there is not yet a selected tab.
 356   WebContents* current_tab = browser_view()->GetActiveWebContents();
 357   return current_tab ? current_tab->IsLoading() : false;
 358 }
 359
 360 gfx::ImageSkia OpaqueBrowserFrameView::GetFaviconForTabIconView() {
 361   views::WidgetDelegate* delegate = frame()->widget_delegate();
 362   if (!delegate) {
 363     LOG(WARNING) << "delegate is NULL, returning safe default.";
 364     return gfx::ImageSkia();
 365   }
 366   return delegate->GetWindowIcon();
 367 }
 368
 369 ///////////////////////////////////////////////////////////////////////////////
 370 // OpaqueBrowserFrameView, protected:
 371
 372 void OpaqueBrowserFrameView::Observe(
 373     int type,
 374     const content::NotificationSource& source,
 375     const content::NotificationDetails& details) {
 376   switch (type) {
 377     case chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED:
 378       if (browser_view() ->IsRegularOrGuestSession() &&
 379           switches::IsNewAvatarMenu()) {
 380         UpdateNewStyleAvatarInfo(this, NewAvatarButton::THEMED_BUTTON);
 381       } else {
 382         UpdateAvatarInfo();
 383       }
 384       break;
 385     default:
 386       NOTREACHED() << "Got a notification we didn't register for!";
 387       break;
 388   }
 389 }
 390
 391 ///////////////////////////////////////////////////////////////////////////////
 392 // OpaqueBrowserFrameView, OpaqueBrowserFrameViewLayoutDelegate implementation:
 393
 394 bool OpaqueBrowserFrameView::ShouldShowWindowIcon() const {
 395   views::WidgetDelegate* delegate = frame()->widget_delegate();
 396   return ShouldShowWindowTitleBar() && delegate &&
 397          delegate->ShouldShowWindowIcon();
 398 }
 399
 400 bool OpaqueBrowserFrameView::ShouldShowWindowTitle() const {
 401   // |delegate| may be NULL if called from callback of InputMethodChanged while
 402   // a window is being destroyed.
 403   // See more discussion at http://crosbug.com/8958
 404   views::WidgetDelegate* delegate = frame()->widget_delegate();
 405   return ShouldShowWindowTitleBar() && delegate &&
 406          delegate->ShouldShowWindowTitle();
 407 }
 408
 409 base::string16 OpaqueBrowserFrameView::GetWindowTitle() const {
 410   return frame()->widget_delegate()->GetWindowTitle();
 411 }
 412
 413 int OpaqueBrowserFrameView::GetIconSize() const {
 414 #if defined(OS_WIN)
 415   // This metric scales up if either the titlebar height or the titlebar font
 416   // size are increased.
 417   return GetSystemMetrics(SM_CYSMICON);
 418 #else
 419   return std::max(BrowserFrame::GetTitleFontList().GetHeight(),
 420                   kIconMinimumSize);
 421 #endif
 422 }
 423
 424 bool OpaqueBrowserFrameView::ShouldLeaveOffsetNearTopBorder() const {
 425   return frame()->ShouldLeaveOffsetNearTopBorder();
 426 }
 427
 428 gfx::Size OpaqueBrowserFrameView::GetBrowserViewMinimumSize() const {
 429   return browser_view()->GetMinimumSize();
 430 }
 431
 432 bool OpaqueBrowserFrameView::ShouldShowCaptionButtons() const {
 433   return ShouldShowWindowTitleBar();
 434 }
 435
 436 bool OpaqueBrowserFrameView::ShouldShowAvatar() const {
 437   return browser_view()->ShouldShowAvatar();
 438 }
 439
 440 bool OpaqueBrowserFrameView::IsRegularOrGuestSession() const {
 441   return browser_view()->IsRegularOrGuestSession();
 442 }
 443
 444 gfx::ImageSkia OpaqueBrowserFrameView::GetOTRAvatarIcon() const {
 445   return browser_view()->GetOTRAvatarIcon();
 446 }
 447
 448 bool OpaqueBrowserFrameView::IsMaximized() const {
 449   return frame()->IsMaximized();
 450 }
 451
 452 bool OpaqueBrowserFrameView::IsMinimized() const {
 453   return frame()->IsMinimized();
 454 }
 455
 456 bool OpaqueBrowserFrameView::IsFullscreen() const {
 457   return frame()->IsFullscreen();
 458 }
 459
 460 bool OpaqueBrowserFrameView::IsTabStripVisible() const {
 461   return browser_view()->IsTabStripVisible();
 462 }
 463
 464 int OpaqueBrowserFrameView::GetTabStripHeight() const {
 465   return browser_view()->GetTabStripHeight();
 466 }
 467
 468 gfx::Size OpaqueBrowserFrameView::GetTabstripPreferredSize() const {
 469   gfx::Size s = browser_view()->tabstrip()->GetPreferredSize();
 470   return s;
 471 }
 472
 473 ///////////////////////////////////////////////////////////////////////////////
 474 // OpaqueBrowserFrameView, views::View overrides:
 475
 476 void OpaqueBrowserFrameView::OnPaint(gfx::Canvas* canvas) {
 477   if (frame()->IsFullscreen())
 478     return;  // Nothing is visible, so don't bother to paint.
 479
 480   if (layout_->IsTitleBarCondensed())
 481     PaintMaximizedFrameBorder(canvas);
 482   else
 483     PaintRestoredFrameBorder(canvas);
 484
 485   // The window icon and title are painted by their respective views.
 486   /* TODO(pkasting):  If this window is active, we should also draw a drop
 487    * shadow on the title.  This is tricky, because we don't want to hardcode a
 488    * shadow color (since we want to work with various themes), but we can't
 489    * alpha-blend either (since the Windows text APIs don't really do this).
 490    * So we'd need to sample the background color at the right location and
 491    * synthesize a good shadow color. */
 492
 493   if (browser_view()->IsToolbarVisible())
 494     PaintToolbarBackground(canvas);
 495   if (!layout_->IsTitleBarCondensed())
 496     PaintRestoredClientEdge(canvas);
 497 }
 498
 499 ///////////////////////////////////////////////////////////////////////////////
 500 // OpaqueBrowserFrameView, private:
 501
 502 // views::NonClientFrameView:
 503 bool OpaqueBrowserFrameView::DoesIntersectRect(const views::View* target,
 504                                                const gfx::Rect& rect) const {
 505   CHECK_EQ(target, this);
 506   if (!views::ViewTargeterDelegate::DoesIntersectRect(this, rect)) {
 507     // |rect| is outside OpaqueBrowserFrameView's bounds.
 508     return false;
 509   }
 510
 511   // If the rect is outside the bounds of the client area, claim it.
 512   gfx::RectF rect_in_client_view_coords_f(rect);
 513   View::ConvertRectToTarget(this, frame()->client_view(),
 514       &rect_in_client_view_coords_f);
 515   gfx::Rect rect_in_client_view_coords = gfx::ToEnclosingRect(
 516       rect_in_client_view_coords_f);
 517   if (!frame()->client_view()->HitTestRect(rect_in_client_view_coords))
 518     return true;
 519
 520   // Otherwise, claim |rect| only if it is above the bottom of the tabstrip in
 521   // a non-tab portion.
 522   TabStrip* tabstrip = browser_view()->tabstrip();
 523   if (!tabstrip || !browser_view()->IsTabStripVisible())
 524     return false;
 525
 526   gfx::RectF rect_in_tabstrip_coords_f(rect);
 527   View::ConvertRectToTarget(this, tabstrip, &rect_in_tabstrip_coords_f);
 528   gfx::Rect rect_in_tabstrip_coords = gfx::ToEnclosingRect(
 529       rect_in_tabstrip_coords_f);
 530   if (rect_in_tabstrip_coords.bottom() > tabstrip->GetLocalBounds().bottom()) {
 531     // |rect| is below the tabstrip.
 532     return false;
 533   }
 534
 535   if (tabstrip->HitTestRect(rect_in_tabstrip_coords)) {
 536     // Claim |rect| if it is in a non-tab portion of the tabstrip.
 537     return tabstrip->IsRectInWindowCaption(rect_in_tabstrip_coords);
 538   }
 539
 540   // We claim |rect| because it is above the bottom of the tabstrip, but
 541   // not in the tabstrip itself. In particular, the avatar label/button is left
 542   // of the tabstrip and the window controls are right of the tabstrip.
 543   return true;
 544 }
 545
 546 views::ImageButton* OpaqueBrowserFrameView::InitWindowCaptionButton(
 547     int normal_image_id,
 548     int hot_image_id,
 549     int pushed_image_id,
 550     int mask_image_id,
 551     int accessibility_string_id,
 552     ViewID view_id) {
 553   views::ImageButton* button = new views::ImageButton(this);
 554   ui::ThemeProvider* tp = frame()->GetThemeProvider();
 555   button->SetImage(views::CustomButton::STATE_NORMAL,
 556                    tp->GetImageSkiaNamed(normal_image_id));
 557   button->SetImage(views::CustomButton::STATE_HOVERED,
 558                    tp->GetImageSkiaNamed(hot_image_id));
 559   button->SetImage(views::CustomButton::STATE_PRESSED,
 560                    tp->GetImageSkiaNamed(pushed_image_id));
 561   if (browser_view()->IsBrowserTypeNormal()) {
 562     button->SetBackground(
 563         tp->GetColor(ThemeProperties::COLOR_BUTTON_BACKGROUND),
 564         tp->GetImageSkiaNamed(IDR_THEME_WINDOW_CONTROL_BACKGROUND),
 565         tp->GetImageSkiaNamed(mask_image_id));
 566   }
 567   button->SetAccessibleName(
 568       l10n_util::GetStringUTF16(accessibility_string_id));
 569   button->set_id(view_id);
 570   AddChildView(button);
 571   return button;
 572 }
 573
 574 int OpaqueBrowserFrameView::FrameBorderThickness(bool restored) const {
 575   return layout_->FrameBorderThickness(restored);
 576 }
 577
 578 int OpaqueBrowserFrameView::TopResizeHeight() const {
 579   return FrameBorderThickness(false) - kTopResizeAdjust;
 580 }
 581
 582 int OpaqueBrowserFrameView::NonClientBorderThickness() const {
 583   return layout_->NonClientBorderThickness();
 584 }
 585
 586 gfx::Rect OpaqueBrowserFrameView::IconBounds() const {
 587   return layout_->IconBounds();
 588 }
 589
 590 bool OpaqueBrowserFrameView::ShouldShowWindowTitleBar() const {
 591 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 592   // Do not show the custom title bar if the system title bar option is enabled.
 593   if (!frame()->UseCustomFrame())
 594     return false;
 595 #endif
 596
 597   // Do not show caption buttons if the window manager is forcefully providing a
 598   // title bar (e.g., in Ubuntu Unity, if the window is maximized).
 599   if (!views::ViewsDelegate::views_delegate)
 600     return true;
 601   return !views::ViewsDelegate::views_delegate->WindowManagerProvidesTitleBar(
 602               IsMaximized());
 603 }
 604
 605 void OpaqueBrowserFrameView::PaintRestoredFrameBorder(gfx::Canvas* canvas) {
 606   frame_background_->set_frame_color(GetFrameColor());
 607   frame_background_->set_theme_image(GetFrameImage());
 608   frame_background_->set_theme_overlay_image(GetFrameOverlayImage());
 609   frame_background_->set_top_area_height(GetTopAreaHeight());
 610
 611   ui::ThemeProvider* tp = GetThemeProvider();
 612   frame_background_->SetSideImages(
 613       tp->GetImageSkiaNamed(IDR_WINDOW_LEFT_SIDE),
 614       tp->GetImageSkiaNamed(IDR_WINDOW_TOP_CENTER),
 615       tp->GetImageSkiaNamed(IDR_WINDOW_RIGHT_SIDE),
 616       tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_CENTER));
 617   frame_background_->SetCornerImages(
 618       tp->GetImageSkiaNamed(IDR_WINDOW_TOP_LEFT_CORNER),
 619       tp->GetImageSkiaNamed(IDR_WINDOW_TOP_RIGHT_CORNER),
 620       tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_LEFT_CORNER),
 621       tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_RIGHT_CORNER));
 622   frame_background_->PaintRestored(canvas, this);
 623
 624   // Note: When we don't have a toolbar, we need to draw some kind of bottom
 625   // edge here.  Because the App Window graphics we use for this have an
 626   // attached client edge and their sizing algorithm is a little involved, we do
 627   // all this in PaintRestoredClientEdge().
 628 }
 629
 630 void OpaqueBrowserFrameView::PaintMaximizedFrameBorder(gfx::Canvas* canvas) {
 631   ui::ThemeProvider* tp = GetThemeProvider();
 632   frame_background_->set_frame_color(GetFrameColor());
 633   frame_background_->set_theme_image(GetFrameImage());
 634   frame_background_->set_theme_overlay_image(GetFrameOverlayImage());
 635   frame_background_->set_top_area_height(GetTopAreaHeight());
 636 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 637   // The window manager typically shows a gradient in the native title bar (when
 638   // the system title bar pref is set, or when maximized on Ubuntu). Hide the
 639   // gradient in the tab strip (by shifting it up vertically) to avoid a
 640   // double-gradient effect.
 641   if (tp->UsingSystemTheme())
 642     frame_background_->set_maximized_top_inset(kGTKThemeCondensedFrameTopInset);
 643 #endif
 644
 645   frame_background_->PaintMaximized(canvas, this);
 646
 647   // TODO(jamescook): Migrate this into FrameBackground.
 648   if (!browser_view()->IsToolbarVisible()) {
 649     // There's no toolbar to edge the frame border, so we need to draw a bottom
 650     // edge.  The graphic we use for this has a built in client edge, so we clip
 651     // it off the bottom.
 652     gfx::ImageSkia* top_center = tp->GetImageSkiaNamed(IDR_APP_TOP_CENTER);
 653     int edge_height = top_center->height() - kClientEdgeThickness;
 654     canvas->TileImageInt(*top_center, 0,
 655         frame()->client_view()->y() - edge_height, width(), edge_height);
 656   }
 657 }
 658
 659 void OpaqueBrowserFrameView::PaintToolbarBackground(gfx::Canvas* canvas) {
 660   gfx::Rect toolbar_bounds(browser_view()->GetToolbarBounds());
 661   if (toolbar_bounds.IsEmpty())
 662     return;
 663   gfx::Point toolbar_origin(toolbar_bounds.origin());
 664   ConvertPointToTarget(browser_view(), this, &toolbar_origin);
 665   toolbar_bounds.set_origin(toolbar_origin);
 666
 667   int x = toolbar_bounds.x();
 668   int w = toolbar_bounds.width();
 669   int y = toolbar_bounds.y();
 670   int h = toolbar_bounds.height();
 671
 672   // Gross hack: We split the toolbar images into two pieces, since sometimes
 673   // (popup mode) the toolbar isn't tall enough to show the whole image.  The
 674   // split happens between the top shadow section and the bottom gradient
 675   // section so that we never break the gradient.
 676   int split_point = kFrameShadowThickness * 2;
 677   int bottom_y = y + split_point;
 678   ui::ThemeProvider* tp = GetThemeProvider();
 679   gfx::ImageSkia* toolbar_left = tp->GetImageSkiaNamed(
 680       IDR_CONTENT_TOP_LEFT_CORNER);
 681   int bottom_edge_height = std::min(toolbar_left->height(), h) - split_point;
 682
 683   // Split our canvas out so we can mask out the corners of the toolbar
 684   // without masking out the frame.
 685   canvas->SaveLayerAlpha(
 686       255, gfx::Rect(x - kClientEdgeThickness, y, w + kClientEdgeThickness * 3,
 687                      h));
 688
 689   // Paint the bottom rect.
 690   canvas->FillRect(gfx::Rect(x, bottom_y, w, bottom_edge_height),
 691                    tp->GetColor(ThemeProperties::COLOR_TOOLBAR));
 692
 693   // Tile the toolbar image starting at the frame edge on the left and where the
 694   // horizontal tabstrip is (or would be) on the top.
 695   gfx::ImageSkia* theme_toolbar = tp->GetImageSkiaNamed(IDR_THEME_TOOLBAR);
 696   canvas->TileImageInt(*theme_toolbar,
 697                        x + GetThemeBackgroundXInset(),
 698                        bottom_y - GetTopInset(),
 699                        x, bottom_y, w, theme_toolbar->height());
 700
 701   // Draw rounded corners for the tab.
 702   gfx::ImageSkia* toolbar_left_mask =
 703       tp->GetImageSkiaNamed(IDR_CONTENT_TOP_LEFT_CORNER_MASK);
 704   gfx::ImageSkia* toolbar_right_mask =
 705       tp->GetImageSkiaNamed(IDR_CONTENT_TOP_RIGHT_CORNER_MASK);
 706
 707   // We mask out the corners by using the DestinationIn transfer mode,
 708   // which keeps the RGB pixels from the destination and the alpha from
 709   // the source.
 710   SkPaint paint;
 711   paint.setXfermodeMode(SkXfermode::kDstIn_Mode);
 712
 713   // Mask the left edge.
 714   int left_x = x - kContentEdgeShadowThickness;
 715   canvas->DrawImageInt(*toolbar_left_mask, 0, 0, toolbar_left_mask->width(),
 716                        split_point, left_x, y, toolbar_left_mask->width(),
 717                        split_point, false, paint);
 718   canvas->DrawImageInt(*toolbar_left_mask, 0,
 719       toolbar_left_mask->height() - bottom_edge_height,
 720       toolbar_left_mask->width(), bottom_edge_height, left_x, bottom_y,
 721       toolbar_left_mask->width(), bottom_edge_height, false, paint);
 722
 723   // Mask the right edge.
 724   int right_x =
 725       x + w - toolbar_right_mask->width() + kContentEdgeShadowThickness;
 726   canvas->DrawImageInt(*toolbar_right_mask, 0, 0, toolbar_right_mask->width(),
 727                        split_point, right_x, y, toolbar_right_mask->width(),
 728                        split_point, false, paint);
 729   canvas->DrawImageInt(*toolbar_right_mask, 0,
 730       toolbar_right_mask->height() - bottom_edge_height,
 731       toolbar_right_mask->width(), bottom_edge_height, right_x, bottom_y,
 732       toolbar_right_mask->width(), bottom_edge_height, false, paint);
 733   canvas->Restore();
 734
 735   canvas->DrawImageInt(*toolbar_left, 0, 0, toolbar_left->width(), split_point,
 736                        left_x, y, toolbar_left->width(), split_point, false);
 737   canvas->DrawImageInt(*toolbar_left, 0,
 738       toolbar_left->height() - bottom_edge_height, toolbar_left->width(),
 739       bottom_edge_height, left_x, bottom_y, toolbar_left->width(),
 740       bottom_edge_height, false);
 741
 742   gfx::ImageSkia* toolbar_center =
 743       tp->GetImageSkiaNamed(IDR_CONTENT_TOP_CENTER);
 744   canvas->TileImageInt(*toolbar_center, 0, 0, left_x + toolbar_left->width(),
 745       y, right_x - (left_x + toolbar_left->width()),
 746       split_point);
 747
 748   gfx::ImageSkia* toolbar_right = tp->GetImageSkiaNamed(
 749       IDR_CONTENT_TOP_RIGHT_CORNER);
 750   canvas->DrawImageInt(*toolbar_right, 0, 0, toolbar_right->width(),
 751       split_point, right_x, y, toolbar_right->width(), split_point, false);
 752   canvas->DrawImageInt(*toolbar_right, 0,
 753       toolbar_right->height() - bottom_edge_height, toolbar_right->width(),
 754       bottom_edge_height, right_x, bottom_y, toolbar_right->width(),
 755       bottom_edge_height, false);
 756
 757   // Draw the content/toolbar separator.
 758   canvas->FillRect(
 759       gfx::Rect(x + kClientEdgeThickness,
 760                 toolbar_bounds.bottom() - kClientEdgeThickness,
 761                 w - (2 * kClientEdgeThickness),
 762                 kClientEdgeThickness),
 763       ThemeProperties::GetDefaultColor(
 764           ThemeProperties::COLOR_TOOLBAR_SEPARATOR));
 765 }
 766
 767 void OpaqueBrowserFrameView::PaintRestoredClientEdge(gfx::Canvas* canvas) {
 768   ui::ThemeProvider* tp = GetThemeProvider();
 769   int client_area_top = frame()->client_view()->y();
 770   int image_top = client_area_top;
 771
 772   gfx::Rect client_area_bounds =
 773       layout_->CalculateClientAreaBounds(width(), height());
 774   SkColor toolbar_color = tp->GetColor(ThemeProperties::COLOR_TOOLBAR);
 775
 776   if (browser_view()->IsToolbarVisible()) {
 777     // The client edge images always start below the toolbar corner images.  The
 778     // client edge filled rects start there or at the bottom of the toolbar,
 779     // whichever is shorter.
 780     gfx::Rect toolbar_bounds(browser_view()->GetToolbarBounds());
 781
 782     gfx::ImageSkia* content_top_left_corner =
 783         tp->GetImageSkiaNamed(IDR_CONTENT_TOP_LEFT_CORNER);
 784     // TODO(oshima): Sanity checks for crbug.com/374273. Remove when it's fixed.
 785     CHECK(content_top_left_corner);
 786     CHECK(!content_top_left_corner->isNull());
 787
 788     image_top += toolbar_bounds.y() + content_top_left_corner->height();
 789     client_area_top = std::min(image_top,
 790         client_area_top + toolbar_bounds.bottom() - kClientEdgeThickness);
 791   } else if (!browser_view()->IsTabStripVisible()) {
 792     // The toolbar isn't going to draw a client edge for us, so draw one
 793     // ourselves.
 794     gfx::ImageSkia* top_left = tp->GetImageSkiaNamed(IDR_APP_TOP_LEFT);
 795     gfx::ImageSkia* top_center = tp->GetImageSkiaNamed(IDR_APP_TOP_CENTER);
 796     gfx::ImageSkia* top_right = tp->GetImageSkiaNamed(IDR_APP_TOP_RIGHT);
 797     int top_edge_y = client_area_top - top_center->height();
 798     int height = client_area_top - top_edge_y;
 799
 800     canvas->DrawImageInt(*top_left, 0, 0, top_left->width(), height,
 801         client_area_bounds.x() - top_left->width(), top_edge_y,
 802         top_left->width(), height, false);
 803     canvas->TileImageInt(*top_center, 0, 0, client_area_bounds.x(), top_edge_y,
 804       client_area_bounds.width(), std::min(height, top_center->height()));
 805     canvas->DrawImageInt(*top_right, 0, 0, top_right->width(), height,
 806         client_area_bounds.right(), top_edge_y,
 807         top_right->width(), height, false);
 808
 809     // Draw the toolbar color across the top edge.
 810     canvas->FillRect(gfx::Rect(client_area_bounds.x() - kClientEdgeThickness,
 811         client_area_top - kClientEdgeThickness,
 812         client_area_bounds.width() + (2 * kClientEdgeThickness),
 813         kClientEdgeThickness), toolbar_color);
 814   }
 815
 816   int client_area_bottom =
 817       std::max(client_area_top, height() - NonClientBorderThickness());
 818   int image_height = client_area_bottom - image_top;
 819
 820   // Draw the client edge images.
 821   gfx::ImageSkia* right = tp->GetImageSkiaNamed(IDR_CONTENT_RIGHT_SIDE);
 822   canvas->TileImageInt(*right, client_area_bounds.right(), image_top,
 823                        right->width(), image_height);
 824   canvas->DrawImageInt(
 825       *tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_RIGHT_CORNER),
 826       client_area_bounds.right(), client_area_bottom);
 827   gfx::ImageSkia* bottom = tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_CENTER);
 828   canvas->TileImageInt(*bottom, client_area_bounds.x(),
 829       client_area_bottom, client_area_bounds.width(),
 830       bottom->height());
 831   gfx::ImageSkia* bottom_left =
 832       tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_LEFT_CORNER);
 833   canvas->DrawImageInt(*bottom_left,
 834       client_area_bounds.x() - bottom_left->width(), client_area_bottom);
 835   gfx::ImageSkia* left = tp->GetImageSkiaNamed(IDR_CONTENT_LEFT_SIDE);
 836   canvas->TileImageInt(*left, client_area_bounds.x() - left->width(),
 837                        image_top, left->width(), image_height);
 838
 839   // Draw the toolbar color so that the client edges show the right color even
 840   // where not covered by the toolbar image.  NOTE: We do this after drawing the
 841   // images because the images are meant to alpha-blend atop the frame whereas
 842   // these rects are meant to be fully opaque, without anything overlaid.
 843   canvas->FillRect(gfx::Rect(client_area_bounds.x() - kClientEdgeThickness,
 844       client_area_top, kClientEdgeThickness,
 845       client_area_bottom + kClientEdgeThickness - client_area_top),
 846        toolbar_color);
 847   canvas->FillRect(gfx::Rect(client_area_bounds.x(), client_area_bottom,
 848                              client_area_bounds.width(), kClientEdgeThickness),
 849                    toolbar_color);
 850   canvas->FillRect(gfx::Rect(client_area_bounds.right(), client_area_top,
 851       kClientEdgeThickness,
 852       client_area_bottom + kClientEdgeThickness - client_area_top),
 853       toolbar_color);
 854 }
 855
 856 SkColor OpaqueBrowserFrameView::GetFrameColor() const {
 857   bool is_incognito = browser_view()->IsOffTheRecord();
 858   ThemeProperties::OverwritableByUserThemeProperty color_id;
 859   if (ShouldPaintAsActive()) {
 860     color_id = is_incognito ?
 861                ThemeProperties::COLOR_FRAME_INCOGNITO :
 862                ThemeProperties::COLOR_FRAME;
 863   } else {
 864     color_id = is_incognito ?
 865                ThemeProperties::COLOR_FRAME_INCOGNITO_INACTIVE :
 866                ThemeProperties::COLOR_FRAME_INACTIVE;
 867   }
 868
 869   if (browser_view()->IsBrowserTypeNormal() ||
 870       platform_observer_->IsUsingSystemTheme()) {
 871     return GetThemeProvider()->GetColor(color_id);
 872   }
 873
 874   // Never theme app and popup windows unless the |platform_observer_|
 875   // requested an override.
 876   return ThemeProperties::GetDefaultColor(color_id);
 877 }
 878
 879 gfx::ImageSkia* OpaqueBrowserFrameView::GetFrameImage() const {
 880   bool is_incognito = browser_view()->IsOffTheRecord();
 881   int resource_id;
 882   if (browser_view()->IsBrowserTypeNormal()) {
 883     if (ShouldPaintAsActive()) {
 884       resource_id = is_incognito ?
 885           IDR_THEME_FRAME_INCOGNITO : IDR_THEME_FRAME;
 886     } else {
 887       resource_id = is_incognito ?
 888           IDR_THEME_FRAME_INCOGNITO_INACTIVE : IDR_THEME_FRAME_INACTIVE;
 889     }
 890     return GetThemeProvider()->GetImageSkiaNamed(resource_id);
 891   }
 892   if (ShouldPaintAsActive()) {
 893     resource_id = is_incognito ?
 894         IDR_THEME_FRAME_INCOGNITO : IDR_FRAME;
 895   } else {
 896     resource_id = is_incognito ?
 897         IDR_THEME_FRAME_INCOGNITO_INACTIVE : IDR_THEME_FRAME_INACTIVE;
 898   }
 899
 900   if (platform_observer_->IsUsingSystemTheme()) {
 901     // We want to use theme images provided by the system theme when enabled,
 902     // even if we are an app or popup window.
 903     return GetThemeProvider()->GetImageSkiaNamed(resource_id);
 904   }
 905
 906   // Otherwise, never theme app and popup windows.
 907   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
 908   return rb.GetImageSkiaNamed(chrome::MapThemeImage(
 909       chrome::GetHostDesktopTypeForNativeWindow(
 910           browser_view()->GetNativeWindow()),
 911       resource_id));
 912 }
 913
 914 gfx::ImageSkia* OpaqueBrowserFrameView::GetFrameOverlayImage() const {
 915   ui::ThemeProvider* tp = GetThemeProvider();
 916   if (tp->HasCustomImage(IDR_THEME_FRAME_OVERLAY) &&
 917       browser_view()->IsBrowserTypeNormal() &&
 918       !browser_view()->IsOffTheRecord()) {
 919     return tp->GetImageSkiaNamed(ShouldPaintAsActive() ?
 920         IDR_THEME_FRAME_OVERLAY : IDR_THEME_FRAME_OVERLAY_INACTIVE);
 921   }
 922   return NULL;
 923 }
 924
 925 int OpaqueBrowserFrameView::GetTopAreaHeight() const {
 926   gfx::ImageSkia* frame_image = GetFrameImage();
 927   int top_area_height = frame_image->height();
 928   if (browser_view()->IsTabStripVisible()) {
 929     top_area_height = std::max(top_area_height,
 930       GetBoundsForTabStrip(browser_view()->tabstrip()).bottom());
 931   }
 932   return top_area_height;
 933 }