opaque_browser_frame_view.cc revision 116680a4aac90f2aa7413d9095a592090648e557 
1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "chrome/browser/ui/views/frame/opaque_browser_frame_view.h"
6
7#include <algorithm>
8#include <string>
9
10#include "base/compiler_specific.h"
11#include "base/prefs/pref_service.h"
12#include "base/strings/utf_string_conversions.h"
13#include "chrome/browser/chrome_notification_types.h"
14#include "chrome/browser/profiles/profiles_state.h"
15#include "chrome/browser/signin/signin_header_helper.h"
16#include "chrome/browser/themes/theme_properties.h"
17#include "chrome/browser/ui/views/frame/browser_frame.h"
18#include "chrome/browser/ui/views/frame/browser_view.h"
19#include "chrome/browser/ui/views/frame/opaque_browser_frame_view_layout.h"
20#include "chrome/browser/ui/views/frame/opaque_browser_frame_view_platform_specific.h"
21#include "chrome/browser/ui/views/profiles/avatar_label.h"
22#include "chrome/browser/ui/views/profiles/avatar_menu_button.h"
23#include "chrome/browser/ui/views/profiles/new_avatar_button.h"
24#include "chrome/browser/ui/views/tab_icon_view.h"
25#include "chrome/browser/ui/views/tabs/tab_strip.h"
26#include "chrome/browser/ui/views/theme_image_mapper.h"
27#include "chrome/browser/ui/views/toolbar/toolbar_view.h"
28#include "chrome/common/pref_names.h"
29#include "components/signin/core/common/profile_management_switches.h"
30#include "content/public/browser/notification_service.h"
31#include "content/public/browser/web_contents.h"
32#include "grit/chromium_strings.h"
33#include "grit/generated_resources.h"
34#include "grit/theme_resources.h"
35#include "grit/ui_resources.h"
36#include "ui/accessibility/ax_view_state.h"
37#include "ui/base/hit_test.h"
38#include "ui/base/l10n/l10n_util.h"
39#include "ui/base/resource/resource_bundle.h"
40#include "ui/base/theme_provider.h"
41#include "ui/gfx/canvas.h"
42#include "ui/gfx/font_list.h"
43#include "ui/gfx/image/image.h"
44#include "ui/gfx/image/image_skia.h"
45#include "ui/gfx/path.h"
46#include "ui/gfx/rect_conversions.h"
47#include "ui/views/controls/button/image_button.h"
48#include "ui/views/controls/image_view.h"
49#include "ui/views/controls/label.h"
50#include "ui/views/layout/layout_constants.h"
51#include "ui/views/views_delegate.h"
52#include "ui/views/widget/root_view.h"
53#include "ui/views/window/frame_background.h"
54#include "ui/views/window/window_shape.h"
55
56#if defined(OS_LINUX)
57#include "ui/views/controls/menu/menu_runner.h"
58#endif
59
60using content::WebContents;
61
62namespace {
63
64// While resize areas on Windows are normally the same size as the window
65// borders, our top area is shrunk by 1 px to make it easier to move the window
66// around with our thinner top grabbable strip.  (Incidentally, our side and
67// bottom resize areas don't match the frame border thickness either -- they
68// span the whole nonclient area, so there's no "dead zone" for the mouse.)
69const int kTopResizeAdjust = 1;
70
71// In the window corners, the resize areas don't actually expand bigger, but the
72// 16 px at the end of each edge triggers diagonal resizing.
73const int kResizeAreaCornerSize = 16;
74
75// The content left/right images have a shadow built into them.
76const int kContentEdgeShadowThickness = 2;
77
78// The icon never shrinks below 16 px on a side.
79const int kIconMinimumSize = 16;
80
81#if defined(OS_LINUX) && !defined(OS_CHROMEOS)
82// The number of pixels to move the frame background image upwards when using
83// the GTK+ theme and the titlebar is condensed.
84const int kGTKThemeCondensedFrameTopInset = 15;
85#endif
86
87}  // namespace
88
89///////////////////////////////////////////////////////////////////////////////
90// OpaqueBrowserFrameView, public:
91
92OpaqueBrowserFrameView::OpaqueBrowserFrameView(BrowserFrame* frame,
93                                               BrowserView* browser_view)
94    : BrowserNonClientFrameView(frame, browser_view),
95      layout_(new OpaqueBrowserFrameViewLayout(this)),
96      minimize_button_(NULL),
97      maximize_button_(NULL),
98      restore_button_(NULL),
99      close_button_(NULL),
100      window_icon_(NULL),
101      window_title_(NULL),
102      frame_background_(new views::FrameBackground()) {
103  SetLayoutManager(layout_);
104
105  minimize_button_ = InitWindowCaptionButton(IDR_MINIMIZE,
106                                             IDR_MINIMIZE_H,
107                                             IDR_MINIMIZE_P,
108                                             IDR_MINIMIZE_BUTTON_MASK,
109                                             IDS_ACCNAME_MINIMIZE,
110                                             VIEW_ID_MINIMIZE_BUTTON);
111  maximize_button_ = InitWindowCaptionButton(IDR_MAXIMIZE,
112                                             IDR_MAXIMIZE_H,
113                                             IDR_MAXIMIZE_P,
114                                             IDR_MAXIMIZE_BUTTON_MASK,
115                                             IDS_ACCNAME_MAXIMIZE,
116                                             VIEW_ID_MAXIMIZE_BUTTON);
117  restore_button_ = InitWindowCaptionButton(IDR_RESTORE,
118                                            IDR_RESTORE_H,
119                                            IDR_RESTORE_P,
120                                            IDR_RESTORE_BUTTON_MASK,
121                                            IDS_ACCNAME_RESTORE,
122                                            VIEW_ID_RESTORE_BUTTON);
123  close_button_ = InitWindowCaptionButton(IDR_CLOSE,
124                                          IDR_CLOSE_H,
125                                          IDR_CLOSE_P,
126                                          IDR_CLOSE_BUTTON_MASK,
127                                          IDS_ACCNAME_CLOSE,
128                                          VIEW_ID_CLOSE_BUTTON);
129
130  // Initializing the TabIconView is expensive, so only do it if we need to.
131  if (browser_view->ShouldShowWindowIcon()) {
132    window_icon_ = new TabIconView(this, this);
133    window_icon_->set_is_light(true);
134    window_icon_->set_id(VIEW_ID_WINDOW_ICON);
135    AddChildView(window_icon_);
136    window_icon_->Update();
137  }
138
139  window_title_ = new views::Label(
140      browser_view->GetWindowTitle(),
141      gfx::FontList(BrowserFrame::GetTitleFontList()));
142  window_title_->SetVisible(browser_view->ShouldShowWindowTitle());
143  window_title_->SetEnabledColor(SK_ColorWHITE);
144  window_title_->set_subpixel_rendering_enabled(false);
145  window_title_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
146  window_title_->set_id(VIEW_ID_WINDOW_TITLE);
147  AddChildView(window_title_);
148
149  if (browser_view->IsRegularOrGuestSession() && switches::IsNewAvatarMenu())
150    UpdateNewStyleAvatarInfo(this, NewAvatarButton::THEMED_BUTTON);
151  else
152    UpdateAvatarInfo();
153
154  if (!browser_view->IsOffTheRecord()) {
155    registrar_.Add(this, chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED,
156                   content::NotificationService::AllSources());
157  }
158
159  platform_observer_.reset(OpaqueBrowserFrameViewPlatformSpecific::Create(
160      this, layout_, browser_view->browser()->profile()));
161}
162
163OpaqueBrowserFrameView::~OpaqueBrowserFrameView() {
164}
165
166///////////////////////////////////////////////////////////////////////////////
167// OpaqueBrowserFrameView, BrowserNonClientFrameView implementation:
168
169gfx::Rect OpaqueBrowserFrameView::GetBoundsForTabStrip(
170    views::View* tabstrip) const {
171  if (!tabstrip)
172    return gfx::Rect();
173
174  return layout_->GetBoundsForTabStrip(tabstrip->GetPreferredSize(), width());
175}
176
177int OpaqueBrowserFrameView::GetTopInset() const {
178  return browser_view()->IsTabStripVisible() ?
179      layout_->GetTabStripInsetsTop(false) :
180      layout_->NonClientTopBorderHeight(false);
181}
182
183int OpaqueBrowserFrameView::GetThemeBackgroundXInset() const {
184  return 0;
185}
186
187void OpaqueBrowserFrameView::UpdateThrobber(bool running) {
188  if (window_icon_)
189    window_icon_->Update();
190}
191
192gfx::Size OpaqueBrowserFrameView::GetMinimumSize() const {
193  return layout_->GetMinimumSize(width());
194}
195
196///////////////////////////////////////////////////////////////////////////////
197// OpaqueBrowserFrameView, views::NonClientFrameView implementation:
198
199gfx::Rect OpaqueBrowserFrameView::GetBoundsForClientView() const {
200  return layout_->client_view_bounds();
201}
202
203gfx::Rect OpaqueBrowserFrameView::GetWindowBoundsForClientBounds(
204    const gfx::Rect& client_bounds) const {
205  return layout_->GetWindowBoundsForClientBounds(client_bounds);
206}
207
208int OpaqueBrowserFrameView::NonClientHitTest(const gfx::Point& point) {
209  if (!bounds().Contains(point))
210    return HTNOWHERE;
211
212  // See if the point is within the avatar menu button or within the avatar
213  // label.
214  if ((avatar_button() &&
215       avatar_button()->GetMirroredBounds().Contains(point)) ||
216      (avatar_label() && avatar_label()->GetMirroredBounds().Contains(point)) ||
217      (new_avatar_button() &&
218       new_avatar_button()->GetMirroredBounds().Contains(point)))
219    return HTCLIENT;
220
221  int frame_component = frame()->client_view()->NonClientHitTest(point);
222
223  // See if we're in the sysmenu region.  We still have to check the tabstrip
224  // first so that clicks in a tab don't get treated as sysmenu clicks.
225  gfx::Rect sysmenu_rect(IconBounds());
226  // In maximized mode we extend the rect to the screen corner to take advantage
227  // of Fitts' Law.
228  if (layout_->IsTitleBarCondensed())
229    sysmenu_rect.SetRect(0, 0, sysmenu_rect.right(), sysmenu_rect.bottom());
230  sysmenu_rect.set_x(GetMirroredXForRect(sysmenu_rect));
231  if (sysmenu_rect.Contains(point))
232    return (frame_component == HTCLIENT) ? HTCLIENT : HTSYSMENU;
233
234  if (frame_component != HTNOWHERE)
235    return frame_component;
236
237  // Then see if the point is within any of the window controls.
238  if (close_button_ && close_button_->visible() &&
239      close_button_->GetMirroredBounds().Contains(point))
240    return HTCLOSE;
241  if (restore_button_ && restore_button_->visible() &&
242      restore_button_->GetMirroredBounds().Contains(point))
243    return HTMAXBUTTON;
244  if (maximize_button_ && maximize_button_->visible() &&
245      maximize_button_->GetMirroredBounds().Contains(point))
246    return HTMAXBUTTON;
247  if (minimize_button_ && minimize_button_->visible() &&
248      minimize_button_->GetMirroredBounds().Contains(point))
249    return HTMINBUTTON;
250
251  views::WidgetDelegate* delegate = frame()->widget_delegate();
252  if (!delegate) {
253    LOG(WARNING) << "delegate is NULL, returning safe default.";
254    return HTCAPTION;
255  }
256  int window_component = GetHTComponentForFrame(point, TopResizeHeight(),
257      NonClientBorderThickness(), kResizeAreaCornerSize, kResizeAreaCornerSize,
258      delegate->CanResize());
259  // Fall back to the caption if no other component matches.
260  return (window_component == HTNOWHERE) ? HTCAPTION : window_component;
261}
262
263void OpaqueBrowserFrameView::GetWindowMask(const gfx::Size& size,
264                                           gfx::Path* window_mask) {
265  DCHECK(window_mask);
266
267  if (layout_->IsTitleBarCondensed() || frame()->IsFullscreen())
268    return;
269
270  views::GetDefaultWindowMask(size, window_mask);
271}
272
273void OpaqueBrowserFrameView::ResetWindowControls() {
274  restore_button_->SetState(views::CustomButton::STATE_NORMAL);
275  minimize_button_->SetState(views::CustomButton::STATE_NORMAL);
276  maximize_button_->SetState(views::CustomButton::STATE_NORMAL);
277  // The close button isn't affected by this constraint.
278}
279
280void OpaqueBrowserFrameView::UpdateWindowIcon() {
281  window_icon_->SchedulePaint();
282}
283
284void OpaqueBrowserFrameView::UpdateWindowTitle() {
285  if (!frame()->IsFullscreen())
286    window_title_->SchedulePaint();
287}
288
289///////////////////////////////////////////////////////////////////////////////
290// OpaqueBrowserFrameView, views::View overrides:
291
292void OpaqueBrowserFrameView::GetAccessibleState(
293    ui::AXViewState* state) {
294  state->role = ui::AX_ROLE_TITLE_BAR;
295}
296
297///////////////////////////////////////////////////////////////////////////////
298// OpaqueBrowserFrameView, views::ButtonListener implementation:
299
300void OpaqueBrowserFrameView::ButtonPressed(views::Button* sender,
301                                           const ui::Event& event) {
302  if (sender == minimize_button_) {
303    frame()->Minimize();
304  } else if (sender == maximize_button_) {
305    frame()->Maximize();
306  } else if (sender == restore_button_) {
307    frame()->Restore();
308  } else if (sender == close_button_) {
309    frame()->Close();
310  } else if (sender == new_avatar_button()) {
311    browser_view()->ShowAvatarBubbleFromAvatarButton(
312        BrowserWindow::AVATAR_BUBBLE_MODE_DEFAULT,
313        signin::ManageAccountsParams());
314  }
315}
316
317void OpaqueBrowserFrameView::OnMenuButtonClicked(views::View* source,
318                                                 const gfx::Point& point) {
319#if defined(OS_LINUX)
320  views::MenuRunner menu_runner(frame()->GetSystemMenuModel(),
321                                views::MenuRunner::HAS_MNEMONICS);
322  ignore_result(menu_runner.RunMenuAt(browser_view()->GetWidget(),
323                                      window_icon_,
324                                      window_icon_->GetBoundsInScreen(),
325                                      views::MENU_ANCHOR_TOPLEFT,
326                                      ui::MENU_SOURCE_MOUSE));
327#endif
328}
329
330///////////////////////////////////////////////////////////////////////////////
331// OpaqueBrowserFrameView, TabIconView::TabContentsProvider implementation:
332
333bool OpaqueBrowserFrameView::ShouldTabIconViewAnimate() const {
334  // This function is queried during the creation of the window as the
335  // TabIconView we host is initialized, so we need to NULL check the selected
336  // WebContents because in this condition there is not yet a selected tab.
337  WebContents* current_tab = browser_view()->GetActiveWebContents();
338  return current_tab ? current_tab->IsLoading() : false;
339}
340
341gfx::ImageSkia OpaqueBrowserFrameView::GetFaviconForTabIconView() {
342  views::WidgetDelegate* delegate = frame()->widget_delegate();
343  if (!delegate) {
344    LOG(WARNING) << "delegate is NULL, returning safe default.";
345    return gfx::ImageSkia();
346  }
347  return delegate->GetWindowIcon();
348}
349
350///////////////////////////////////////////////////////////////////////////////
351// OpaqueBrowserFrameView, protected:
352
353void OpaqueBrowserFrameView::Observe(
354    int type,
355    const content::NotificationSource& source,
356    const content::NotificationDetails& details) {
357  switch (type) {
358    case chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED:
359      if (browser_view() ->IsRegularOrGuestSession() &&
360          switches::IsNewAvatarMenu()) {
361        UpdateNewStyleAvatarInfo(this, NewAvatarButton::THEMED_BUTTON);
362      } else {
363        UpdateAvatarInfo();
364      }
365      break;
366    default:
367      NOTREACHED() << "Got a notification we didn't register for!";
368      break;
369  }
370}
371
372///////////////////////////////////////////////////////////////////////////////
373// OpaqueBrowserFrameView, OpaqueBrowserFrameViewLayoutDelegate implementation:
374
375bool OpaqueBrowserFrameView::ShouldShowWindowIcon() const {
376  views::WidgetDelegate* delegate = frame()->widget_delegate();
377  return ShouldShowWindowTitleBar() && delegate &&
378         delegate->ShouldShowWindowIcon();
379}
380
381bool OpaqueBrowserFrameView::ShouldShowWindowTitle() const {
382  // |delegate| may be NULL if called from callback of InputMethodChanged while
383  // a window is being destroyed.
384  // See more discussion at http://crosbug.com/8958
385  views::WidgetDelegate* delegate = frame()->widget_delegate();
386  return ShouldShowWindowTitleBar() && delegate &&
387         delegate->ShouldShowWindowTitle();
388}
389
390base::string16 OpaqueBrowserFrameView::GetWindowTitle() const {
391  return frame()->widget_delegate()->GetWindowTitle();
392}
393
394int OpaqueBrowserFrameView::GetIconSize() const {
395#if defined(OS_WIN)
396  // This metric scales up if either the titlebar height or the titlebar font
397  // size are increased.
398  return GetSystemMetrics(SM_CYSMICON);
399#else
400  return std::max(BrowserFrame::GetTitleFontList().GetHeight(),
401                  kIconMinimumSize);
402#endif
403}
404
405bool OpaqueBrowserFrameView::ShouldLeaveOffsetNearTopBorder() const {
406  return frame()->ShouldLeaveOffsetNearTopBorder();
407}
408
409gfx::Size OpaqueBrowserFrameView::GetBrowserViewMinimumSize() const {
410  return browser_view()->GetMinimumSize();
411}
412
413bool OpaqueBrowserFrameView::ShouldShowCaptionButtons() const {
414  return ShouldShowWindowTitleBar();
415}
416
417bool OpaqueBrowserFrameView::ShouldShowAvatar() const {
418  return browser_view()->ShouldShowAvatar();
419}
420
421bool OpaqueBrowserFrameView::IsRegularOrGuestSession() const {
422  return browser_view()->IsRegularOrGuestSession();
423}
424
425gfx::ImageSkia OpaqueBrowserFrameView::GetOTRAvatarIcon() const {
426  return browser_view()->GetOTRAvatarIcon();
427}
428
429bool OpaqueBrowserFrameView::IsMaximized() const {
430  return frame()->IsMaximized();
431}
432
433bool OpaqueBrowserFrameView::IsMinimized() const {
434  return frame()->IsMinimized();
435}
436
437bool OpaqueBrowserFrameView::IsFullscreen() const {
438  return frame()->IsFullscreen();
439}
440
441bool OpaqueBrowserFrameView::IsTabStripVisible() const {
442  return browser_view()->IsTabStripVisible();
443}
444
445int OpaqueBrowserFrameView::GetTabStripHeight() const {
446  return browser_view()->GetTabStripHeight();
447}
448
449gfx::Size OpaqueBrowserFrameView::GetTabstripPreferredSize() const {
450  gfx::Size s = browser_view()->tabstrip()->GetPreferredSize();
451  return s;
452}
453
454///////////////////////////////////////////////////////////////////////////////
455// OpaqueBrowserFrameView, views::View overrides:
456
457void OpaqueBrowserFrameView::OnPaint(gfx::Canvas* canvas) {
458  if (frame()->IsFullscreen())
459    return;  // Nothing is visible, so don't bother to paint.
460
461  if (layout_->IsTitleBarCondensed())
462    PaintMaximizedFrameBorder(canvas);
463  else
464    PaintRestoredFrameBorder(canvas);
465
466  // The window icon and title are painted by their respective views.
467  /* TODO(pkasting):  If this window is active, we should also draw a drop
468   * shadow on the title.  This is tricky, because we don't want to hardcode a
469   * shadow color (since we want to work with various themes), but we can't
470   * alpha-blend either (since the Windows text APIs don't really do this).
471   * So we'd need to sample the background color at the right location and
472   * synthesize a good shadow color. */
473
474  if (browser_view()->IsToolbarVisible())
475    PaintToolbarBackground(canvas);
476  if (!layout_->IsTitleBarCondensed())
477    PaintRestoredClientEdge(canvas);
478}
479
480///////////////////////////////////////////////////////////////////////////////
481// OpaqueBrowserFrameView, private:
482
483// views::NonClientFrameView:
484bool OpaqueBrowserFrameView::DoesIntersectRect(const views::View* target,
485                                               const gfx::Rect& rect) const {
486  CHECK_EQ(target, this);
487  if (!views::ViewTargeterDelegate::DoesIntersectRect(this, rect)) {
488    // |rect| is outside OpaqueBrowserFrameView's bounds.
489    return false;
490  }
491
492  // If the rect is outside the bounds of the client area, claim it.
493  gfx::RectF rect_in_client_view_coords_f(rect);
494  View::ConvertRectToTarget(this, frame()->client_view(),
495      &rect_in_client_view_coords_f);
496  gfx::Rect rect_in_client_view_coords = gfx::ToEnclosingRect(
497      rect_in_client_view_coords_f);
498  if (!frame()->client_view()->HitTestRect(rect_in_client_view_coords))
499    return true;
500
501  // Otherwise, claim |rect| only if it is above the bottom of the tabstrip in
502  // a non-tab portion.
503  TabStrip* tabstrip = browser_view()->tabstrip();
504  if (!tabstrip || !browser_view()->IsTabStripVisible())
505    return false;
506
507  gfx::RectF rect_in_tabstrip_coords_f(rect);
508  View::ConvertRectToTarget(this, tabstrip, &rect_in_tabstrip_coords_f);
509  gfx::Rect rect_in_tabstrip_coords = gfx::ToEnclosingRect(
510      rect_in_tabstrip_coords_f);
511  if (rect_in_tabstrip_coords.bottom() > tabstrip->GetLocalBounds().bottom()) {
512    // |rect| is below the tabstrip.
513    return false;
514  }
515
516  if (tabstrip->HitTestRect(rect_in_tabstrip_coords)) {
517    // Claim |rect| if it is in a non-tab portion of the tabstrip.
518    return tabstrip->IsRectInWindowCaption(rect_in_tabstrip_coords);
519  }
520
521  // We claim |rect| because it is above the bottom of the tabstrip, but
522  // not in the tabstrip itself. In particular, the avatar label/button is left
523  // of the tabstrip and the window controls are right of the tabstrip.
524  return true;
525}
526
527views::ImageButton* OpaqueBrowserFrameView::InitWindowCaptionButton(
528    int normal_image_id,
529    int hot_image_id,
530    int pushed_image_id,
531    int mask_image_id,
532    int accessibility_string_id,
533    ViewID view_id) {
534  views::ImageButton* button = new views::ImageButton(this);
535  ui::ThemeProvider* tp = frame()->GetThemeProvider();
536  button->SetImage(views::CustomButton::STATE_NORMAL,
537                   tp->GetImageSkiaNamed(normal_image_id));
538  button->SetImage(views::CustomButton::STATE_HOVERED,
539                   tp->GetImageSkiaNamed(hot_image_id));
540  button->SetImage(views::CustomButton::STATE_PRESSED,
541                   tp->GetImageSkiaNamed(pushed_image_id));
542  if (browser_view()->IsBrowserTypeNormal()) {
543    button->SetBackground(
544        tp->GetColor(ThemeProperties::COLOR_BUTTON_BACKGROUND),
545        tp->GetImageSkiaNamed(IDR_THEME_WINDOW_CONTROL_BACKGROUND),
546        tp->GetImageSkiaNamed(mask_image_id));
547  }
548  button->SetAccessibleName(
549      l10n_util::GetStringUTF16(accessibility_string_id));
550  button->set_id(view_id);
551  AddChildView(button);
552  return button;
553}
554
555int OpaqueBrowserFrameView::FrameBorderThickness(bool restored) const {
556  return layout_->FrameBorderThickness(restored);
557}
558
559int OpaqueBrowserFrameView::TopResizeHeight() const {
560  return FrameBorderThickness(false) - kTopResizeAdjust;
561}
562
563int OpaqueBrowserFrameView::NonClientBorderThickness() const {
564  return layout_->NonClientBorderThickness();
565}
566
567gfx::Rect OpaqueBrowserFrameView::IconBounds() const {
568  return layout_->IconBounds();
569}
570
571bool OpaqueBrowserFrameView::ShouldShowWindowTitleBar() const {
572#if defined(OS_LINUX) && !defined(OS_CHROMEOS)
573  // Do not show the custom title bar if the system title bar option is enabled.
574  if (!frame()->UseCustomFrame())
575    return false;
576#endif
577
578  // Do not show caption buttons if the window manager is forcefully providing a
579  // title bar (e.g., in Ubuntu Unity, if the window is maximized).
580  if (!views::ViewsDelegate::views_delegate)
581    return true;
582  return !views::ViewsDelegate::views_delegate->WindowManagerProvidesTitleBar(
583              IsMaximized());
584}
585
586void OpaqueBrowserFrameView::PaintRestoredFrameBorder(gfx::Canvas* canvas) {
587  frame_background_->set_frame_color(GetFrameColor());
588  frame_background_->set_theme_image(GetFrameImage());
589  frame_background_->set_theme_overlay_image(GetFrameOverlayImage());
590  frame_background_->set_top_area_height(GetTopAreaHeight());
591
592  ui::ThemeProvider* tp = GetThemeProvider();
593  frame_background_->SetSideImages(
594      tp->GetImageSkiaNamed(IDR_WINDOW_LEFT_SIDE),
595      tp->GetImageSkiaNamed(IDR_WINDOW_TOP_CENTER),
596      tp->GetImageSkiaNamed(IDR_WINDOW_RIGHT_SIDE),
597      tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_CENTER));
598  frame_background_->SetCornerImages(
599      tp->GetImageSkiaNamed(IDR_WINDOW_TOP_LEFT_CORNER),
600      tp->GetImageSkiaNamed(IDR_WINDOW_TOP_RIGHT_CORNER),
601      tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_LEFT_CORNER),
602      tp->GetImageSkiaNamed(IDR_WINDOW_BOTTOM_RIGHT_CORNER));
603  frame_background_->PaintRestored(canvas, this);
604
605  // Note: When we don't have a toolbar, we need to draw some kind of bottom
606  // edge here.  Because the App Window graphics we use for this have an
607  // attached client edge and their sizing algorithm is a little involved, we do
608  // all this in PaintRestoredClientEdge().
609}
610
611void OpaqueBrowserFrameView::PaintMaximizedFrameBorder(gfx::Canvas* canvas) {
612  ui::ThemeProvider* tp = GetThemeProvider();
613  frame_background_->set_frame_color(GetFrameColor());
614  frame_background_->set_theme_image(GetFrameImage());
615  frame_background_->set_theme_overlay_image(GetFrameOverlayImage());
616  frame_background_->set_top_area_height(GetTopAreaHeight());
617#if defined(OS_LINUX) && !defined(OS_CHROMEOS)
618  // The window manager typically shows a gradient in the native title bar (when
619  // the system title bar pref is set, or when maximized on Ubuntu). Hide the
620  // gradient in the tab strip (by shifting it up vertically) to avoid a
621  // double-gradient effect.
622  if (tp->UsingSystemTheme())
623    frame_background_->set_maximized_top_inset(kGTKThemeCondensedFrameTopInset);
624#endif
625
626  frame_background_->PaintMaximized(canvas, this);
627
628  // TODO(jamescook): Migrate this into FrameBackground.
629  if (!browser_view()->IsToolbarVisible()) {
630    // There's no toolbar to edge the frame border, so we need to draw a bottom
631    // edge.  The graphic we use for this has a built in client edge, so we clip
632    // it off the bottom.
633    gfx::ImageSkia* top_center = tp->GetImageSkiaNamed(IDR_APP_TOP_CENTER);
634    int edge_height = top_center->height() - kClientEdgeThickness;
635    canvas->TileImageInt(*top_center, 0,
636        frame()->client_view()->y() - edge_height, width(), edge_height);
637  }
638}
639
640void OpaqueBrowserFrameView::PaintToolbarBackground(gfx::Canvas* canvas) {
641  gfx::Rect toolbar_bounds(browser_view()->GetToolbarBounds());
642  if (toolbar_bounds.IsEmpty())
643    return;
644  gfx::Point toolbar_origin(toolbar_bounds.origin());
645  ConvertPointToTarget(browser_view(), this, &toolbar_origin);
646  toolbar_bounds.set_origin(toolbar_origin);
647
648  int x = toolbar_bounds.x();
649  int w = toolbar_bounds.width();
650  int y = toolbar_bounds.y();
651  int h = toolbar_bounds.height();
652
653  // Gross hack: We split the toolbar images into two pieces, since sometimes
654  // (popup mode) the toolbar isn't tall enough to show the whole image.  The
655  // split happens between the top shadow section and the bottom gradient
656  // section so that we never break the gradient.
657  int split_point = kFrameShadowThickness * 2;
658  int bottom_y = y + split_point;
659  ui::ThemeProvider* tp = GetThemeProvider();
660  gfx::ImageSkia* toolbar_left = tp->GetImageSkiaNamed(
661      IDR_CONTENT_TOP_LEFT_CORNER);
662  int bottom_edge_height = std::min(toolbar_left->height(), h) - split_point;
663
664  // Split our canvas out so we can mask out the corners of the toolbar
665  // without masking out the frame.
666  canvas->SaveLayerAlpha(
667      255, gfx::Rect(x - kClientEdgeThickness, y, w + kClientEdgeThickness * 3,
668                     h));
669
670  // Paint the bottom rect.
671  canvas->FillRect(gfx::Rect(x, bottom_y, w, bottom_edge_height),
672                   tp->GetColor(ThemeProperties::COLOR_TOOLBAR));
673
674  // Tile the toolbar image starting at the frame edge on the left and where the
675  // horizontal tabstrip is (or would be) on the top.
676  gfx::ImageSkia* theme_toolbar = tp->GetImageSkiaNamed(IDR_THEME_TOOLBAR);
677  canvas->TileImageInt(*theme_toolbar,
678                       x + GetThemeBackgroundXInset(),
679                       bottom_y - GetTopInset(),
680                       x, bottom_y, w, theme_toolbar->height());
681
682  // Draw rounded corners for the tab.
683  gfx::ImageSkia* toolbar_left_mask =
684      tp->GetImageSkiaNamed(IDR_CONTENT_TOP_LEFT_CORNER_MASK);
685  gfx::ImageSkia* toolbar_right_mask =
686      tp->GetImageSkiaNamed(IDR_CONTENT_TOP_RIGHT_CORNER_MASK);
687
688  // We mask out the corners by using the DestinationIn transfer mode,
689  // which keeps the RGB pixels from the destination and the alpha from
690  // the source.
691  SkPaint paint;
692  paint.setXfermodeMode(SkXfermode::kDstIn_Mode);
693
694  // Mask the left edge.
695  int left_x = x - kContentEdgeShadowThickness;
696  canvas->DrawImageInt(*toolbar_left_mask, 0, 0, toolbar_left_mask->width(),
697                       split_point, left_x, y, toolbar_left_mask->width(),
698                       split_point, false, paint);
699  canvas->DrawImageInt(*toolbar_left_mask, 0,
700      toolbar_left_mask->height() - bottom_edge_height,
701      toolbar_left_mask->width(), bottom_edge_height, left_x, bottom_y,
702      toolbar_left_mask->width(), bottom_edge_height, false, paint);
703
704  // Mask the right edge.
705  int right_x =
706      x + w - toolbar_right_mask->width() + kContentEdgeShadowThickness;
707  canvas->DrawImageInt(*toolbar_right_mask, 0, 0, toolbar_right_mask->width(),
708                       split_point, right_x, y, toolbar_right_mask->width(),
709                       split_point, false, paint);
710  canvas->DrawImageInt(*toolbar_right_mask, 0,
711      toolbar_right_mask->height() - bottom_edge_height,
712      toolbar_right_mask->width(), bottom_edge_height, right_x, bottom_y,
713      toolbar_right_mask->width(), bottom_edge_height, false, paint);
714  canvas->Restore();
715
716  canvas->DrawImageInt(*toolbar_left, 0, 0, toolbar_left->width(), split_point,
717                       left_x, y, toolbar_left->width(), split_point, false);
718  canvas->DrawImageInt(*toolbar_left, 0,
719      toolbar_left->height() - bottom_edge_height, toolbar_left->width(),
720      bottom_edge_height, left_x, bottom_y, toolbar_left->width(),
721      bottom_edge_height, false);
722
723  gfx::ImageSkia* toolbar_center =
724      tp->GetImageSkiaNamed(IDR_CONTENT_TOP_CENTER);
725  canvas->TileImageInt(*toolbar_center, 0, 0, left_x + toolbar_left->width(),
726      y, right_x - (left_x + toolbar_left->width()),
727      split_point);
728
729  gfx::ImageSkia* toolbar_right = tp->GetImageSkiaNamed(
730      IDR_CONTENT_TOP_RIGHT_CORNER);
731  canvas->DrawImageInt(*toolbar_right, 0, 0, toolbar_right->width(),
732      split_point, right_x, y, toolbar_right->width(), split_point, false);
733  canvas->DrawImageInt(*toolbar_right, 0,
734      toolbar_right->height() - bottom_edge_height, toolbar_right->width(),
735      bottom_edge_height, right_x, bottom_y, toolbar_right->width(),
736      bottom_edge_height, false);
737
738  // Draw the content/toolbar separator.
739  canvas->FillRect(
740      gfx::Rect(x + kClientEdgeThickness,
741                toolbar_bounds.bottom() - kClientEdgeThickness,
742                w - (2 * kClientEdgeThickness),
743                kClientEdgeThickness),
744      ThemeProperties::GetDefaultColor(
745          ThemeProperties::COLOR_TOOLBAR_SEPARATOR));
746}
747
748void OpaqueBrowserFrameView::PaintRestoredClientEdge(gfx::Canvas* canvas) {
749  ui::ThemeProvider* tp = GetThemeProvider();
750  int client_area_top = frame()->client_view()->y();
751  int image_top = client_area_top;
752
753  gfx::Rect client_area_bounds =
754      layout_->CalculateClientAreaBounds(width(), height());
755  SkColor toolbar_color = tp->GetColor(ThemeProperties::COLOR_TOOLBAR);
756
757  if (browser_view()->IsToolbarVisible()) {
758    // The client edge images always start below the toolbar corner images.  The
759    // client edge filled rects start there or at the bottom of the toolbar,
760    // whichever is shorter.
761    gfx::Rect toolbar_bounds(browser_view()->GetToolbarBounds());
762
763    gfx::ImageSkia* content_top_left_corner =
764        tp->GetImageSkiaNamed(IDR_CONTENT_TOP_LEFT_CORNER);
765    // TODO(oshima): Sanity checks for crbug.com/374273. Remove when it's fixed.
766    CHECK(content_top_left_corner);
767    CHECK(!content_top_left_corner->isNull());
768
769    image_top += toolbar_bounds.y() + 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
837SkColor OpaqueBrowserFrameView::GetFrameColor() const {
838  bool is_incognito = browser_view()->IsOffTheRecord();
839  ThemeProperties::OverwritableByUserThemeProperty color_id;
840  if (ShouldPaintAsActive()) {
841    color_id = is_incognito ?
842               ThemeProperties::COLOR_FRAME_INCOGNITO :
843               ThemeProperties::COLOR_FRAME;
844  } else {
845    color_id = is_incognito ?
846               ThemeProperties::COLOR_FRAME_INCOGNITO_INACTIVE :
847               ThemeProperties::COLOR_FRAME_INACTIVE;
848  }
849
850  if (browser_view()->IsBrowserTypeNormal() ||
851      platform_observer_->IsUsingSystemTheme()) {
852    return GetThemeProvider()->GetColor(color_id);
853  }
854
855  // Never theme app and popup windows unless the |platform_observer_|
856  // requested an override.
857  return ThemeProperties::GetDefaultColor(color_id);
858}
859
860gfx::ImageSkia* OpaqueBrowserFrameView::GetFrameImage() const {
861  bool is_incognito = browser_view()->IsOffTheRecord();
862  int resource_id;
863  if (browser_view()->IsBrowserTypeNormal()) {
864    if (ShouldPaintAsActive()) {
865      resource_id = is_incognito ?
866          IDR_THEME_FRAME_INCOGNITO : IDR_THEME_FRAME;
867    } else {
868      resource_id = is_incognito ?
869          IDR_THEME_FRAME_INCOGNITO_INACTIVE : IDR_THEME_FRAME_INACTIVE;
870    }
871    return GetThemeProvider()->GetImageSkiaNamed(resource_id);
872  }
873  if (ShouldPaintAsActive()) {
874    resource_id = is_incognito ?
875        IDR_THEME_FRAME_INCOGNITO : IDR_FRAME;
876  } else {
877    resource_id = is_incognito ?
878        IDR_THEME_FRAME_INCOGNITO_INACTIVE : IDR_THEME_FRAME_INACTIVE;
879  }
880
881  if (platform_observer_->IsUsingSystemTheme()) {
882    // We want to use theme images provided by the system theme when enabled,
883    // even if we are an app or popup window.
884    return GetThemeProvider()->GetImageSkiaNamed(resource_id);
885  }
886
887  // Otherwise, never theme app and popup windows.
888  ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
889  return rb.GetImageSkiaNamed(chrome::MapThemeImage(
890      chrome::GetHostDesktopTypeForNativeWindow(
891          browser_view()->GetNativeWindow()),
892      resource_id));
893}
894
895gfx::ImageSkia* OpaqueBrowserFrameView::GetFrameOverlayImage() const {
896  ui::ThemeProvider* tp = GetThemeProvider();
897  if (tp->HasCustomImage(IDR_THEME_FRAME_OVERLAY) &&
898      browser_view()->IsBrowserTypeNormal() &&
899      !browser_view()->IsOffTheRecord()) {
900    return tp->GetImageSkiaNamed(ShouldPaintAsActive() ?
901        IDR_THEME_FRAME_OVERLAY : IDR_THEME_FRAME_OVERLAY_INACTIVE);
902  }
903  return NULL;
904}
905
906int OpaqueBrowserFrameView::GetTopAreaHeight() const {
907  gfx::ImageSkia* frame_image = GetFrameImage();
908  int top_area_height = frame_image->height();
909  if (browser_view()->IsTabStripVisible()) {
910    top_area_height = std::max(top_area_height,
911      GetBoundsForTabStrip(browser_view()->tabstrip()).bottom());
912  }
913  return top_area_height;
914}
915