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/toolbar/toolbar_view.h"
  26 #include "chrome/common/pref_names.h"
  27 #include "chrome/common/profile_management_switches.h"
  28 #include "content/public/browser/notification_service.h"
  29 #include "content/public/browser/web_contents.h"
  30 #include "grit/chromium_strings.h"
  31 #include "grit/generated_resources.h"
  32 #include "grit/theme_resources.h"
  33 #include "grit/ui_resources.h"
  34 #include "ui/base/accessibility/accessible_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/views/controls/button/image_button.h"
  46 #include "ui/views/controls/image_view.h"
  47 #include "ui/views/controls/label.h"
  48 #include "ui/views/layout/layout_constants.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(OS_LINUX)
  54 #include "ui/views/controls/menu/menu_runner.h"
  55 #endif
  56
  57 using content::WebContents;
  58
  59 namespace {
  60
  61 // While resize areas on Windows are normally the same size as the window
  62 // borders, our top area is shrunk by 1 px to make it easier to move the window
  63 // around with our thinner top grabbable strip.  (Incidentally, our side and
  64 // bottom resize areas don't match the frame border thickness either -- they
  65 // span the whole nonclient area, so there's no "dead zone" for the mouse.)
  66 const int kTopResizeAdjust = 1;
  67
  68 // In the window corners, the resize areas don't actually expand bigger, but the
  69 // 16 px at the end of each edge triggers diagonal resizing.
  70 const int kResizeAreaCornerSize = 16;
  71
  72 // The content left/right images have a shadow built into them.
  73 const int kContentEdgeShadowThickness = 2;
  74
  75 // The icon never shrinks below 16 px on a side.
  76 const int kIconMinimumSize = 16;
  77
  78 // The top 3 px of the tabstrip is shadow; in maximized mode we push this off
  79 // the top of the screen so the tabs appear flush against the screen edge.
  80 const int kTabstripTopShadowThickness = 3;
  81
  82 }  // namespace
  83
  84 ///////////////////////////////////////////////////////////////////////////////
  85 // OpaqueBrowserFrameView, public:
  86
  87 OpaqueBrowserFrameView::OpaqueBrowserFrameView(BrowserFrame* frame,
  88                                                BrowserView* browser_view)
  89     : BrowserNonClientFrameView(frame, browser_view),
  90       layout_(new OpaqueBrowserFrameViewLayout(this)),
  91       minimize_button_(NULL),
  92       maximize_button_(NULL),
  93       restore_button_(NULL),
  94       close_button_(NULL),
  95       window_icon_(NULL),
  96       window_title_(NULL),
  97       frame_background_(new views::FrameBackground()) {
  98   SetLayoutManager(layout_);
  99
 100   if (OpaqueBrowserFrameViewLayout::ShouldAddDefaultCaptionButtons()) {
 101     minimize_button_ = InitWindowCaptionButton(IDR_MINIMIZE,
 102                                                IDR_MINIMIZE_H,
 103                                                IDR_MINIMIZE_P,
 104                                                IDR_MINIMIZE_BUTTON_MASK,
 105                                                IDS_ACCNAME_MINIMIZE,
 106                                                VIEW_ID_MINIMIZE_BUTTON);
 107     maximize_button_ = InitWindowCaptionButton(IDR_MAXIMIZE,
 108                                                IDR_MAXIMIZE_H,
 109                                                IDR_MAXIMIZE_P,
 110                                                IDR_MAXIMIZE_BUTTON_MASK,
 111                                                IDS_ACCNAME_MAXIMIZE,
 112                                                VIEW_ID_MAXIMIZE_BUTTON);
 113     restore_button_ = InitWindowCaptionButton(IDR_RESTORE,
 114                                               IDR_RESTORE_H,
 115                                               IDR_RESTORE_P,
 116                                               IDR_RESTORE_BUTTON_MASK,
 117                                               IDS_ACCNAME_RESTORE,
 118                                               VIEW_ID_RESTORE_BUTTON);
 119     close_button_ = InitWindowCaptionButton(IDR_CLOSE,
 120                                             IDR_CLOSE_H,
 121                                             IDR_CLOSE_P,
 122                                             IDR_CLOSE_BUTTON_MASK,
 123                                             IDS_ACCNAME_CLOSE,
 124                                             VIEW_ID_CLOSE_BUTTON);
 125   }
 126
 127   // Initializing the TabIconView is expensive, so only do it if we need to.
 128   if (browser_view->ShouldShowWindowIcon()) {
 129     window_icon_ = new TabIconView(this, this);
 130     window_icon_->set_is_light(true);
 131     window_icon_->set_id(VIEW_ID_WINDOW_ICON);
 132     AddChildView(window_icon_);
 133     window_icon_->Update();
 134   }
 135
 136   window_title_ = new views::Label(browser_view->GetWindowTitle(),
 137                                    gfx::FontList(BrowserFrame::GetTitleFont()));
 138   window_title_->SetVisible(browser_view->ShouldShowWindowTitle());
 139   window_title_->SetEnabledColor(SK_ColorWHITE);
 140   // TODO(msw): Use a transparent background color as a workaround to use the
 141   // gfx::Canvas::NO_SUBPIXEL_RENDERING flag and avoid some visual artifacts.
 142   window_title_->SetBackgroundColor(0x00000000);
 143   window_title_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
 144   window_title_->set_id(VIEW_ID_WINDOW_TITLE);
 145   AddChildView(window_title_);
 146
 147   if (browser_view->IsRegularOrGuestSession() &&
 148       switches::IsNewProfileManagement())
 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(
 159       OpaqueBrowserFrameViewPlatformSpecific::Create(this, layout_));
 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() {
 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 (frame()->IsMaximized())
 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 (frame()->IsMaximized() || frame()->IsFullscreen())
 267     return;
 268
 269   views::GetDefaultWindowMask(size, window_mask);
 270 }
 271
 272 void OpaqueBrowserFrameView::ResetWindowControls() {
 273   if (!OpaqueBrowserFrameViewLayout::ShouldAddDefaultCaptionButtons())
 274     return;
 275   restore_button_->SetState(views::CustomButton::STATE_NORMAL);
 276   minimize_button_->SetState(views::CustomButton::STATE_NORMAL);
 277   maximize_button_->SetState(views::CustomButton::STATE_NORMAL);
 278   // The close button isn't affected by this constraint.
 279 }
 280
 281 void OpaqueBrowserFrameView::UpdateWindowIcon() {
 282   window_icon_->SchedulePaint();
 283 }
 284
 285 void OpaqueBrowserFrameView::UpdateWindowTitle() {
 286   if (!frame()->IsFullscreen())
 287     window_title_->SchedulePaint();
 288 }
 289
 290 ///////////////////////////////////////////////////////////////////////////////
 291 // OpaqueBrowserFrameView, views::View overrides:
 292
 293 bool OpaqueBrowserFrameView::HitTestRect(const gfx::Rect& rect) const {
 294   if (!views::View::HitTestRect(rect)) {
 295     // |rect| is outside OpaqueBrowserFrameView's bounds.
 296     return false;
 297   }
 298
 299   // If the rect is outside the bounds of the client area, claim it.
 300   gfx::RectF rect_in_client_view_coords_f(rect);
 301   View::ConvertRectToTarget(this, frame()->client_view(),
 302       &rect_in_client_view_coords_f);
 303   gfx::Rect rect_in_client_view_coords = gfx::ToEnclosingRect(
 304       rect_in_client_view_coords_f);
 305   if (!frame()->client_view()->HitTestRect(rect_in_client_view_coords))
 306     return true;
 307
 308   // Otherwise, claim |rect| only if it is above the bottom of the tabstrip in
 309   // a non-tab portion.
 310   TabStrip* tabstrip = browser_view()->tabstrip();
 311   if (!tabstrip || !browser_view()->IsTabStripVisible())
 312     return false;
 313
 314   gfx::RectF rect_in_tabstrip_coords_f(rect);
 315   View::ConvertRectToTarget(this, tabstrip, &rect_in_tabstrip_coords_f);
 316   gfx::Rect rect_in_tabstrip_coords = gfx::ToEnclosingRect(
 317       rect_in_tabstrip_coords_f);
 318   if (rect_in_tabstrip_coords.bottom() > tabstrip->GetLocalBounds().bottom()) {
 319     // |rect| is below the tabstrip.
 320     return false;
 321   }
 322
 323   if (tabstrip->HitTestRect(rect_in_tabstrip_coords)) {
 324     // Claim |rect| if it is in a non-tab portion of the tabstrip.
 325     return tabstrip->IsRectInWindowCaption(rect_in_tabstrip_coords);
 326   }
 327
 328   // The window switcher button is to the right of the tabstrip but is
 329   // part of the client view.
 330   views::View* window_switcher_button =
 331       browser_view()->window_switcher_button();
 332   if (window_switcher_button && window_switcher_button->visible()) {
 333     gfx::RectF rect_in_window_switcher_coords_f(rect);
 334     View::ConvertRectToTarget(this, window_switcher_button,
 335         &rect_in_window_switcher_coords_f);
 336     gfx::Rect rect_in_window_switcher_coords = gfx::ToEnclosingRect(
 337         rect_in_window_switcher_coords_f);
 338
 339     if (window_switcher_button->HitTestRect(rect_in_window_switcher_coords))
 340       return false;
 341   }
 342
 343   // We claim |rect| because it is above the bottom of the tabstrip, but
 344   // neither in the tabstrip nor in the window switcher button. In particular,
 345   // the avatar label/button is left of the tabstrip and the window controls
 346   // are right of the tabstrip.
 347   return true;
 348 }
 349
 350 void OpaqueBrowserFrameView::GetAccessibleState(
 351     ui::AccessibleViewState* state) {
 352   state->role = ui::AccessibilityTypes::ROLE_TITLEBAR;
 353 }
 354
 355 ///////////////////////////////////////////////////////////////////////////////
 356 // OpaqueBrowserFrameView, views::ButtonListener implementation:
 357
 358 void OpaqueBrowserFrameView::ButtonPressed(views::Button* sender,
 359                                            const ui::Event& event) {
 360   if (sender == minimize_button_)
 361     frame()->Minimize();
 362   else if (sender == maximize_button_)
 363     frame()->Maximize();
 364   else if (sender == restore_button_)
 365     frame()->Restore();
 366   else if (sender == close_button_)
 367     frame()->Close();
 368   else if (sender == new_avatar_button())
 369     browser_view()->ShowAvatarBubbleFromAvatarButton();
 370 }
 371
 372 void OpaqueBrowserFrameView::OnMenuButtonClicked(views::View* source,
 373                                                  const gfx::Point& point) {
 374 #if defined(OS_LINUX)
 375   views::MenuRunner menu_runner(frame()->GetSystemMenuModel());
 376   ignore_result(menu_runner.RunMenuAt(browser_view()->GetWidget(),
 377                                       window_icon_,
 378                                       window_icon_->GetBoundsInScreen(),
 379                                       views::MenuItemView::TOPLEFT,
 380                                       ui::MENU_SOURCE_MOUSE,
 381                                       views::MenuRunner::HAS_MNEMONICS));
 382 #endif
 383 }
 384
 385 ///////////////////////////////////////////////////////////////////////////////
 386 // OpaqueBrowserFrameView, TabIconView::TabContentsProvider implementation:
 387
 388 bool OpaqueBrowserFrameView::ShouldTabIconViewAnimate() const {
 389   // This function is queried during the creation of the window as the
 390   // TabIconView we host is initialized, so we need to NULL check the selected
 391   // WebContents because in this condition there is not yet a selected tab.
 392   WebContents* current_tab = browser_view()->GetActiveWebContents();
 393   return current_tab ? current_tab->IsLoading() : false;
 394 }
 395
 396 gfx::ImageSkia OpaqueBrowserFrameView::GetFaviconForTabIconView() {
 397   views::WidgetDelegate* delegate = frame()->widget_delegate();
 398   if (!delegate) {
 399     LOG(WARNING) << "delegate is NULL, returning safe default.";
 400     return gfx::ImageSkia();
 401   }
 402   return delegate->GetWindowIcon();
 403 }
 404
 405 ///////////////////////////////////////////////////////////////////////////////
 406 // OpaqueBrowserFrameView, protected:
 407
 408 void OpaqueBrowserFrameView::Observe(
 409     int type,
 410     const content::NotificationSource& source,
 411     const content::NotificationDetails& details) {
 412   switch (type) {
 413     case chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED:
 414       if (browser_view() ->IsRegularOrGuestSession() &&
 415           switches::IsNewProfileManagement())
 416         UpdateNewStyleAvatarInfo(this, NewAvatarButton::THEMED_BUTTON);
 417       else
 418         UpdateAvatarInfo();
 419       break;
 420     default:
 421       NOTREACHED() << "Got a notification we didn't register for!";
 422       break;
 423   }
 424 }
 425
 426 ///////////////////////////////////////////////////////////////////////////////
 427 // OpaqueBrowserFrameView, OpaqueBrowserFrameViewLayoutDelegate implementation:
 428
 429 bool OpaqueBrowserFrameView::ShouldShowWindowIcon() const {
 430   views::WidgetDelegate* delegate = frame()->widget_delegate();
 431   return platform_observer_->ShouldShowTitleBar() && delegate &&
 432          delegate->ShouldShowWindowIcon();
 433 }
 434
 435 bool OpaqueBrowserFrameView::ShouldShowWindowTitle() const {
 436   // |delegate| may be NULL if called from callback of InputMethodChanged while
 437   // a window is being destroyed.
 438   // See more discussion at http://crosbug.com/8958
 439   views::WidgetDelegate* delegate = frame()->widget_delegate();
 440   return platform_observer_->ShouldShowTitleBar() && delegate &&
 441          delegate->ShouldShowWindowTitle();
 442 }
 443
 444 base::string16 OpaqueBrowserFrameView::GetWindowTitle() const {
 445   return frame()->widget_delegate()->GetWindowTitle();
 446 }
 447
 448 int OpaqueBrowserFrameView::GetIconSize() const {
 449 #if defined(OS_WIN)
 450   // This metric scales up if either the titlebar height or the titlebar font
 451   // size are increased.
 452   return GetSystemMetrics(SM_CYSMICON);
 453 #else
 454   return std::max(BrowserFrame::GetTitleFont().GetHeight(), kIconMinimumSize);
 455 #endif
 456 }
 457
 458 bool OpaqueBrowserFrameView::ShouldLeaveOffsetNearTopBorder() const {
 459   return frame()->ShouldLeaveOffsetNearTopBorder();
 460 }
 461
 462 gfx::Size OpaqueBrowserFrameView::GetBrowserViewMinimumSize() const {
 463   return browser_view()->GetMinimumSize();
 464 }
 465
 466 bool OpaqueBrowserFrameView::ShouldShowCaptionButtons() const {
 467   if (!OpaqueBrowserFrameViewLayout::ShouldAddDefaultCaptionButtons())
 468     return false;
 469   return platform_observer_->ShouldShowCaptionButtons();
 470 }
 471
 472 bool OpaqueBrowserFrameView::ShouldShowAvatar() const {
 473   return browser_view()->ShouldShowAvatar();
 474 }
 475
 476 bool OpaqueBrowserFrameView::IsRegularOrGuestSession() const {
 477   return browser_view()->IsRegularOrGuestSession();
 478 }
 479
 480 gfx::ImageSkia OpaqueBrowserFrameView::GetOTRAvatarIcon() const {
 481   return browser_view()->GetOTRAvatarIcon();
 482 }
 483
 484 bool OpaqueBrowserFrameView::IsMaximized() const {
 485   return frame()->IsMaximized();
 486 }
 487
 488 bool OpaqueBrowserFrameView::IsMinimized() const {
 489   return frame()->IsMinimized();
 490 }
 491
 492 bool OpaqueBrowserFrameView::IsFullscreen() const {
 493   return frame()->IsFullscreen();
 494 }
 495
 496 bool OpaqueBrowserFrameView::IsTabStripVisible() const {
 497   return browser_view()->IsTabStripVisible();
 498 }
 499
 500 int OpaqueBrowserFrameView::GetTabStripHeight() const {
 501   return browser_view()->GetTabStripHeight();
 502 }
 503
 504 int OpaqueBrowserFrameView::GetAdditionalReservedSpaceInTabStrip() const {
 505   // We don't have the sysmenu buttons in Windows 8 metro mode. However there
 506   // are buttons like the window switcher which are drawn in the non client
 507   // are in the BrowserView. We need to ensure that the tab strip does not
 508   // draw on the window switcher button.
 509   views::View* button = browser_view()->window_switcher_button();
 510   return button ? button->width() : 0;
 511 }
 512
 513 gfx::Size OpaqueBrowserFrameView::GetTabstripPreferredSize() const {
 514   gfx::Size s = browser_view()->tabstrip()->GetPreferredSize();
 515   return s;
 516 }
 517
 518 ///////////////////////////////////////////////////////////////////////////////
 519 // OpaqueBrowserFrameView, views::View overrides:
 520
 521 void OpaqueBrowserFrameView::OnPaint(gfx::Canvas* canvas) {
 522   if (frame()->IsFullscreen())
 523     return;  // Nothing is visible, so don't bother to paint.
 524
 525   if (frame()->IsMaximized())
 526     PaintMaximizedFrameBorder(canvas);
 527   else
 528     PaintRestoredFrameBorder(canvas);
 529
 530   // The window icon and title are painted by their respective views.
 531   /* TODO(pkasting):  If this window is active, we should also draw a drop
 532    * shadow on the title.  This is tricky, because we don't want to hardcode a
 533    * shadow color (since we want to work with various themes), but we can't
 534    * alpha-blend either (since the Windows text APIs don't really do this).
 535    * So we'd need to sample the background color at the right location and
 536    * synthesize a good shadow color. */
 537
 538   if (browser_view()->IsToolbarVisible())
 539     PaintToolbarBackground(canvas);
 540   if (!frame()->IsMaximized())
 541     PaintRestoredClientEdge(canvas);
 542 }
 543
 544 ///////////////////////////////////////////////////////////////////////////////
 545 // OpaqueBrowserFrameView, private:
 546
 547 views::ImageButton* OpaqueBrowserFrameView::InitWindowCaptionButton(
 548     int normal_image_id,
 549     int hot_image_id,
 550     int pushed_image_id,
 551     int mask_image_id,
 552     int accessibility_string_id,
 553     ViewID view_id) {
 554   views::ImageButton* button = new views::ImageButton(this);
 555   ui::ThemeProvider* tp = frame()->GetThemeProvider();
 556   button->SetImage(views::CustomButton::STATE_NORMAL,
 557                    tp->GetImageSkiaNamed(normal_image_id));
 558   button->SetImage(views::CustomButton::STATE_HOVERED,
 559                    tp->GetImageSkiaNamed(hot_image_id));
 560   button->SetImage(views::CustomButton::STATE_PRESSED,
 561                    tp->GetImageSkiaNamed(pushed_image_id));
 562   if (browser_view()->IsBrowserTypeNormal()) {
 563     button->SetBackground(
 564         tp->GetColor(ThemeProperties::COLOR_BUTTON_BACKGROUND),
 565         tp->GetImageSkiaNamed(IDR_THEME_WINDOW_CONTROL_BACKGROUND),
 566         tp->GetImageSkiaNamed(mask_image_id));
 567   }
 568   button->SetAccessibleName(
 569       l10n_util::GetStringUTF16(accessibility_string_id));
 570   button->set_id(view_id);
 571   AddChildView(button);
 572   return button;
 573 }
 574
 575 int OpaqueBrowserFrameView::FrameBorderThickness(bool restored) const {
 576   return layout_->FrameBorderThickness(restored);
 577 }
 578
 579 int OpaqueBrowserFrameView::TopResizeHeight() const {
 580   return FrameBorderThickness(false) - kTopResizeAdjust;
 581 }
 582
 583 int OpaqueBrowserFrameView::NonClientBorderThickness() const {
 584   return layout_->NonClientBorderThickness();
 585 }
 586
 587 gfx::Rect OpaqueBrowserFrameView::IconBounds() const {
 588   return layout_->IconBounds();
 589 }
 590
 591 void OpaqueBrowserFrameView::PaintRestoredFrameBorder(gfx::Canvas* canvas) {
 592   frame_background_->set_frame_color(GetFrameColor());
 593   frame_background_->set_theme_image(GetFrameImage());
 594   frame_background_->set_theme_overlay_image(GetFrameOverlayImage());
 595   frame_background_->set_top_area_height(GetTopAreaHeight());
 596
 597   ui::ThemeProvider* tp = GetThemeProvider();
 598   frame_background_->SetSideImages(
 599       tp->GetImageSkiaNamed(IDR_WINDOW_LEFT_SIDE),
 600       tp->GetImageSkiaNamed(IDR_WINDOW_TOP_CENTER),
 601       tp->GetImageSkiaNamed(IDR_WINDOW_RIGHT_SIDE),
 602       tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_CENTER));
 603   frame_background_->SetCornerImages(
 604       tp->GetImageSkiaNamed(IDR_WINDOW_TOP_LEFT_CORNER),
 605       tp->GetImageSkiaNamed(IDR_WINDOW_TOP_RIGHT_CORNER),
 606       tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_LEFT_CORNER),
 607       tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_RIGHT_CORNER));
 608   frame_background_->PaintRestored(canvas, this);
 609
 610   // Note: When we don't have a toolbar, we need to draw some kind of bottom
 611   // edge here.  Because the App Window graphics we use for this have an
 612   // attached client edge and their sizing algorithm is a little involved, we do
 613   // all this in PaintRestoredClientEdge().
 614 }
 615
 616 void OpaqueBrowserFrameView::PaintMaximizedFrameBorder(gfx::Canvas* canvas) {
 617   frame_background_->set_frame_color(GetFrameColor());
 618   frame_background_->set_theme_image(GetFrameImage());
 619   frame_background_->set_theme_overlay_image(GetFrameOverlayImage());
 620   frame_background_->set_top_area_height(GetTopAreaHeight());
 621
 622   // Theme frame must be aligned with the tabstrip as if we were
 623   // in restored mode.  Note that the top of the tabstrip is
 624   // kTabstripTopShadowThickness px off the top of the screen.
 625   int restored_tabstrip_top_inset = 0;
 626   if (browser_view()->IsTabStripVisible())
 627     restored_tabstrip_top_inset = layout_->GetTabStripInsetsTop(true);
 628   frame_background_->set_theme_background_y(
 629       -restored_tabstrip_top_inset - kTabstripTopShadowThickness);
 630
 631   frame_background_->PaintMaximized(canvas, this);
 632
 633   // TODO(jamescook): Migrate this into FrameBackground.
 634   if (!browser_view()->IsToolbarVisible()) {
 635     // There's no toolbar to edge the frame border, so we need to draw a bottom
 636     // edge.  The graphic we use for this has a built in client edge, so we clip
 637     // it off the bottom.
 638     gfx::ImageSkia* top_center =
 639         GetThemeProvider()->GetImageSkiaNamed(IDR_APP_TOP_CENTER);
 640     int edge_height = top_center->height() - kClientEdgeThickness;
 641     canvas->TileImageInt(*top_center, 0,
 642         frame()->client_view()->y() - edge_height, width(), edge_height);
 643   }
 644 }
 645
 646 void OpaqueBrowserFrameView::PaintToolbarBackground(gfx::Canvas* canvas) {
 647   gfx::Rect toolbar_bounds(browser_view()->GetToolbarBounds());
 648   if (toolbar_bounds.IsEmpty())
 649     return;
 650   gfx::Point toolbar_origin(toolbar_bounds.origin());
 651   ConvertPointToTarget(browser_view(), this, &toolbar_origin);
 652   toolbar_bounds.set_origin(toolbar_origin);
 653
 654   int x = toolbar_bounds.x();
 655   int w = toolbar_bounds.width();
 656   int y = toolbar_bounds.y();
 657   int h = toolbar_bounds.height();
 658
 659   // Gross hack: We split the toolbar images into two pieces, since sometimes
 660   // (popup mode) the toolbar isn't tall enough to show the whole image.  The
 661   // split happens between the top shadow section and the bottom gradient
 662   // section so that we never break the gradient.
 663   int split_point = kFrameShadowThickness * 2;
 664   int bottom_y = y + split_point;
 665   ui::ThemeProvider* tp = GetThemeProvider();
 666   gfx::ImageSkia* toolbar_left = tp->GetImageSkiaNamed(
 667       IDR_CONTENT_TOP_LEFT_CORNER);
 668   int bottom_edge_height = std::min(toolbar_left->height(), h) - split_point;
 669
 670   // Split our canvas out so we can mask out the corners of the toolbar
 671   // without masking out the frame.
 672   canvas->SaveLayerAlpha(
 673       255, gfx::Rect(x - kClientEdgeThickness, y, w + kClientEdgeThickness * 3,
 674                      h));
 675
 676   // Paint the bottom rect.
 677   canvas->FillRect(gfx::Rect(x, bottom_y, w, bottom_edge_height),
 678                    tp->GetColor(ThemeProperties::COLOR_TOOLBAR));
 679
 680   // Tile the toolbar image starting at the frame edge on the left and where the
 681   // horizontal tabstrip is (or would be) on the top.
 682   gfx::ImageSkia* theme_toolbar = tp->GetImageSkiaNamed(IDR_THEME_TOOLBAR);
 683   canvas->TileImageInt(*theme_toolbar,
 684                        x + GetThemeBackgroundXInset(),
 685                        bottom_y - GetTopInset(),
 686                        x, bottom_y, w, theme_toolbar->height());
 687
 688   // Draw rounded corners for the tab.
 689   gfx::ImageSkia* toolbar_left_mask =
 690       tp->GetImageSkiaNamed(IDR_CONTENT_TOP_LEFT_CORNER_MASK);
 691   gfx::ImageSkia* toolbar_right_mask =
 692       tp->GetImageSkiaNamed(IDR_CONTENT_TOP_RIGHT_CORNER_MASK);
 693
 694   // We mask out the corners by using the DestinationIn transfer mode,
 695   // which keeps the RGB pixels from the destination and the alpha from
 696   // the source.
 697   SkPaint paint;
 698   paint.setXfermodeMode(SkXfermode::kDstIn_Mode);
 699
 700   // Mask the left edge.
 701   int left_x = x - kContentEdgeShadowThickness;
 702   canvas->DrawImageInt(*toolbar_left_mask, 0, 0, toolbar_left_mask->width(),
 703                        split_point, left_x, y, toolbar_left_mask->width(),
 704                        split_point, false, paint);
 705   canvas->DrawImageInt(*toolbar_left_mask, 0,
 706       toolbar_left_mask->height() - bottom_edge_height,
 707       toolbar_left_mask->width(), bottom_edge_height, left_x, bottom_y,
 708       toolbar_left_mask->width(), bottom_edge_height, false, paint);
 709
 710   // Mask the right edge.
 711   int right_x =
 712       x + w - toolbar_right_mask->width() + kContentEdgeShadowThickness;
 713   canvas->DrawImageInt(*toolbar_right_mask, 0, 0, toolbar_right_mask->width(),
 714                        split_point, right_x, y, toolbar_right_mask->width(),
 715                        split_point, false, paint);
 716   canvas->DrawImageInt(*toolbar_right_mask, 0,
 717       toolbar_right_mask->height() - bottom_edge_height,
 718       toolbar_right_mask->width(), bottom_edge_height, right_x, bottom_y,
 719       toolbar_right_mask->width(), bottom_edge_height, false, paint);
 720   canvas->Restore();
 721
 722   canvas->DrawImageInt(*toolbar_left, 0, 0, toolbar_left->width(), split_point,
 723                        left_x, y, toolbar_left->width(), split_point, false);
 724   canvas->DrawImageInt(*toolbar_left, 0,
 725       toolbar_left->height() - bottom_edge_height, toolbar_left->width(),
 726       bottom_edge_height, left_x, bottom_y, toolbar_left->width(),
 727       bottom_edge_height, false);
 728
 729   gfx::ImageSkia* toolbar_center =
 730       tp->GetImageSkiaNamed(IDR_CONTENT_TOP_CENTER);
 731   canvas->TileImageInt(*toolbar_center, 0, 0, left_x + toolbar_left->width(),
 732       y, right_x - (left_x + toolbar_left->width()),
 733       split_point);
 734
 735   gfx::ImageSkia* toolbar_right = tp->GetImageSkiaNamed(
 736       IDR_CONTENT_TOP_RIGHT_CORNER);
 737   canvas->DrawImageInt(*toolbar_right, 0, 0, toolbar_right->width(),
 738       split_point, right_x, y, toolbar_right->width(), split_point, false);
 739   canvas->DrawImageInt(*toolbar_right, 0,
 740       toolbar_right->height() - bottom_edge_height, toolbar_right->width(),
 741       bottom_edge_height, right_x, bottom_y, toolbar_right->width(),
 742       bottom_edge_height, false);
 743
 744   // Draw the content/toolbar separator.
 745   canvas->FillRect(
 746       gfx::Rect(x + kClientEdgeThickness,
 747                 toolbar_bounds.bottom() - kClientEdgeThickness,
 748                 w - (2 * kClientEdgeThickness),
 749                 kClientEdgeThickness),
 750       ThemeProperties::GetDefaultColor(
 751           ThemeProperties::COLOR_TOOLBAR_SEPARATOR));
 752 }
 753
 754 void OpaqueBrowserFrameView::PaintRestoredClientEdge(gfx::Canvas* canvas) {
 755   ui::ThemeProvider* tp = GetThemeProvider();
 756   int client_area_top = frame()->client_view()->y();
 757   int image_top = client_area_top;
 758
 759   gfx::Rect client_area_bounds =
 760       layout_->CalculateClientAreaBounds(width(), height());
 761   SkColor toolbar_color = tp->GetColor(ThemeProperties::COLOR_TOOLBAR);
 762
 763   if (browser_view()->IsToolbarVisible()) {
 764     // The client edge images always start below the toolbar corner images.  The
 765     // client edge filled rects start there or at the bottom of the toolbar,
 766     // whichever is shorter.
 767     gfx::Rect toolbar_bounds(browser_view()->GetToolbarBounds());
 768     image_top += toolbar_bounds.y() +
 769         tp->GetImageSkiaNamed(IDR_CONTENT_TOP_LEFT_CORNER)->height();
 770     client_area_top = std::min(image_top,
 771         client_area_top + toolbar_bounds.bottom() - kClientEdgeThickness);
 772   } else if (!browser_view()->IsTabStripVisible()) {
 773     // The toolbar isn't going to draw a client edge for us, so draw one
 774     // ourselves.
 775     gfx::ImageSkia* top_left = tp->GetImageSkiaNamed(IDR_APP_TOP_LEFT);
 776     gfx::ImageSkia* top_center = tp->GetImageSkiaNamed(IDR_APP_TOP_CENTER);
 777     gfx::ImageSkia* top_right = tp->GetImageSkiaNamed(IDR_APP_TOP_RIGHT);
 778     int top_edge_y = client_area_top - top_center->height();
 779     int height = client_area_top - top_edge_y;
 780
 781     canvas->DrawImageInt(*top_left, 0, 0, top_left->width(), height,
 782         client_area_bounds.x() - top_left->width(), top_edge_y,
 783         top_left->width(), height, false);
 784     canvas->TileImageInt(*top_center, 0, 0, client_area_bounds.x(), top_edge_y,
 785       client_area_bounds.width(), std::min(height, top_center->height()));
 786     canvas->DrawImageInt(*top_right, 0, 0, top_right->width(), height,
 787         client_area_bounds.right(), top_edge_y,
 788         top_right->width(), height, false);
 789
 790     // Draw the toolbar color across the top edge.
 791     canvas->FillRect(gfx::Rect(client_area_bounds.x() - kClientEdgeThickness,
 792         client_area_top - kClientEdgeThickness,
 793         client_area_bounds.width() + (2 * kClientEdgeThickness),
 794         kClientEdgeThickness), toolbar_color);
 795   }
 796
 797   int client_area_bottom =
 798       std::max(client_area_top, height() - NonClientBorderThickness());
 799   int image_height = client_area_bottom - image_top;
 800
 801   // Draw the client edge images.
 802   gfx::ImageSkia* right = tp->GetImageSkiaNamed(IDR_CONTENT_RIGHT_SIDE);
 803   canvas->TileImageInt(*right, client_area_bounds.right(), image_top,
 804                        right->width(), image_height);
 805   canvas->DrawImageInt(
 806       *tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_RIGHT_CORNER),
 807       client_area_bounds.right(), client_area_bottom);
 808   gfx::ImageSkia* bottom = tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_CENTER);
 809   canvas->TileImageInt(*bottom, client_area_bounds.x(),
 810       client_area_bottom, client_area_bounds.width(),
 811       bottom->height());
 812   gfx::ImageSkia* bottom_left =
 813       tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_LEFT_CORNER);
 814   canvas->DrawImageInt(*bottom_left,
 815       client_area_bounds.x() - bottom_left->width(), client_area_bottom);
 816   gfx::ImageSkia* left = tp->GetImageSkiaNamed(IDR_CONTENT_LEFT_SIDE);
 817   canvas->TileImageInt(*left, client_area_bounds.x() - left->width(),
 818                        image_top, left->width(), image_height);
 819
 820   // Draw the toolbar color so that the client edges show the right color even
 821   // where not covered by the toolbar image.  NOTE: We do this after drawing the
 822   // images because the images are meant to alpha-blend atop the frame whereas
 823   // these rects are meant to be fully opaque, without anything overlaid.
 824   canvas->FillRect(gfx::Rect(client_area_bounds.x() - kClientEdgeThickness,
 825       client_area_top, kClientEdgeThickness,
 826       client_area_bottom + kClientEdgeThickness - client_area_top),
 827        toolbar_color);
 828   canvas->FillRect(gfx::Rect(client_area_bounds.x(), client_area_bottom,
 829                              client_area_bounds.width(), kClientEdgeThickness),
 830                    toolbar_color);
 831   canvas->FillRect(gfx::Rect(client_area_bounds.right(), client_area_top,
 832       kClientEdgeThickness,
 833       client_area_bottom + kClientEdgeThickness - client_area_top),
 834       toolbar_color);
 835 }
 836
 837 SkColor OpaqueBrowserFrameView::GetFrameColor() const {
 838   bool is_incognito = browser_view()->IsOffTheRecord();
 839   if (browser_view()->IsBrowserTypeNormal()) {
 840     if (ShouldPaintAsActive()) {
 841       return GetThemeProvider()->GetColor(is_incognito ?
 842           ThemeProperties::COLOR_FRAME_INCOGNITO :
 843           ThemeProperties::COLOR_FRAME);
 844     }
 845     return GetThemeProvider()->GetColor(is_incognito ?
 846         ThemeProperties::COLOR_FRAME_INCOGNITO_INACTIVE :
 847         ThemeProperties::COLOR_FRAME_INACTIVE);
 848   }
 849   // Never theme app and popup windows.
 850   if (ShouldPaintAsActive()) {
 851     return ThemeProperties::GetDefaultColor(is_incognito ?
 852         ThemeProperties::COLOR_FRAME_INCOGNITO : ThemeProperties::COLOR_FRAME);
 853   }
 854   return ThemeProperties::GetDefaultColor(is_incognito ?
 855       ThemeProperties::COLOR_FRAME_INCOGNITO_INACTIVE :
 856       ThemeProperties::COLOR_FRAME_INACTIVE);
 857 }
 858
 859 gfx::ImageSkia* OpaqueBrowserFrameView::GetFrameImage() const {
 860   bool is_incognito = browser_view()->IsOffTheRecord();
 861   int resource_id;
 862   if (browser_view()->IsBrowserTypeNormal()) {
 863     if (ShouldPaintAsActive()) {
 864       resource_id = is_incognito ?
 865           IDR_THEME_FRAME_INCOGNITO : IDR_THEME_FRAME;
 866     } else {
 867       resource_id = is_incognito ?
 868           IDR_THEME_FRAME_INCOGNITO_INACTIVE : IDR_THEME_FRAME_INACTIVE;
 869     }
 870     return GetThemeProvider()->GetImageSkiaNamed(resource_id);
 871   }
 872   // Never theme app and popup windows.
 873   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
 874   if (ShouldPaintAsActive()) {
 875     resource_id = is_incognito ?
 876         IDR_THEME_FRAME_INCOGNITO : IDR_FRAME;
 877   } else {
 878     resource_id = is_incognito ?
 879         IDR_THEME_FRAME_INCOGNITO_INACTIVE : IDR_THEME_FRAME_INACTIVE;
 880   }
 881   return rb.GetImageSkiaNamed(resource_id);
 882 }
 883
 884 gfx::ImageSkia* OpaqueBrowserFrameView::GetFrameOverlayImage() const {
 885   ui::ThemeProvider* tp = GetThemeProvider();
 886   if (tp->HasCustomImage(IDR_THEME_FRAME_OVERLAY) &&
 887       browser_view()->IsBrowserTypeNormal() &&
 888       !browser_view()->IsOffTheRecord()) {
 889     return tp->GetImageSkiaNamed(ShouldPaintAsActive() ?
 890         IDR_THEME_FRAME_OVERLAY : IDR_THEME_FRAME_OVERLAY_INACTIVE);
 891   }
 892   return NULL;
 893 }
 894
 895 int OpaqueBrowserFrameView::GetTopAreaHeight() const {
 896   gfx::ImageSkia* frame_image = GetFrameImage();
 897   int top_area_height = frame_image->height();
 898   if (browser_view()->IsTabStripVisible()) {
 899     top_area_height = std::max(top_area_height,
 900       GetBoundsForTabStrip(browser_view()->tabstrip()).bottom());
 901   }
 902   return top_area_height;
 903 }