src/chrome/browser/ui/cocoa/browser_window_controller_private.mm

   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 #import "chrome/browser/ui/cocoa/browser_window_controller_private.h"
   6
   7 #include <cmath>
   8
   9 #include "base/command_line.h"
  10 #import "base/mac/scoped_nsobject.h"
  11 #include "base/prefs/pref_service.h"
  12 #include "base/prefs/scoped_user_pref_update.h"
  13 #include "chrome/browser/browser_process.h"
  14 #include "chrome/browser/fullscreen.h"
  15 #include "chrome/browser/profiles/profile.h"
  16 #include "chrome/browser/profiles/profile_info_util.h"
  17 #include "chrome/browser/ui/bookmarks/bookmark_tab_helper.h"
  18 #include "chrome/browser/ui/browser.h"
  19 #include "chrome/browser/ui/browser_window_state.h"
  20 #import "chrome/browser/ui/cocoa/browser/avatar_button_controller.h"
  21 #import "chrome/browser/ui/cocoa/dev_tools_controller.h"
  22 #import "chrome/browser/ui/cocoa/fast_resize_view.h"
  23 #import "chrome/browser/ui/cocoa/find_bar/find_bar_cocoa_controller.h"
  24 #import "chrome/browser/ui/cocoa/floating_bar_backing_view.h"
  25 #import "chrome/browser/ui/cocoa/framed_browser_window.h"
  26 #import "chrome/browser/ui/cocoa/fullscreen_mode_controller.h"
  27 #import "chrome/browser/ui/cocoa/fullscreen_window.h"
  28 #import "chrome/browser/ui/cocoa/infobars/infobar_container_controller.h"
  29 #include "chrome/browser/ui/cocoa/last_active_browser_cocoa.h"
  30 #import "chrome/browser/ui/cocoa/nsview_additions.h"
  31 #import "chrome/browser/ui/cocoa/presentation_mode_controller.h"
  32 #import "chrome/browser/ui/cocoa/status_bubble_mac.h"
  33 #import "chrome/browser/ui/cocoa/tab_contents/overlayable_contents_controller.h"
  34 #import "chrome/browser/ui/cocoa/tabs/tab_strip_controller.h"
  35 #import "chrome/browser/ui/cocoa/tabs/tab_strip_view.h"
  36 #import "chrome/browser/ui/cocoa/toolbar/toolbar_controller.h"
  37 #include "chrome/browser/ui/fullscreen/fullscreen_controller.h"
  38 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  39 #include "chrome/common/chrome_switches.h"
  40 #include "chrome/common/pref_names.h"
  41 #include "content/public/browser/render_widget_host_view.h"
  42 #include "content/public/browser/web_contents.h"
  43 #include "content/public/browser/web_contents_view.h"
  44 #import "ui/base/cocoa/focus_tracker.h"
  45 #include "ui/base/ui_base_types.h"
  46
  47 using content::RenderWidgetHostView;
  48 using content::WebContents;
  49
  50 namespace {
  51
  52 // Space between the incognito badge and the right edge of the window.
  53 const CGFloat kAvatarRightOffset = 4;
  54
  55 // The amount by which to shrink the tab strip (on the right) when the
  56 // incognito badge is present.
  57 const CGFloat kAvatarTabStripShrink = 18;
  58
  59 // Insets for the location bar, used when the full toolbar is hidden.
  60 // TODO(viettrungluu): We can argue about the "correct" insetting; I like the
  61 // following best, though arguably 0 inset is better/more correct.
  62 const CGFloat kLocBarLeftRightInset = 1;
  63 const CGFloat kLocBarTopInset = 0;
  64 const CGFloat kLocBarBottomInset = 1;
  65
  66 }  // namespace
  67
  68 @implementation BrowserWindowController(Private)
  69
  70 // Create the tab strip controller.
  71 - (void)createTabStripController {
  72   DCHECK([overlayableContentsController_ activeContainer]);
  73   DCHECK([[overlayableContentsController_ activeContainer] window]);
  74   tabStripController_.reset([[TabStripController alloc]
  75       initWithView:[self tabStripView]
  76         switchView:[overlayableContentsController_ activeContainer]
  77            browser:browser_.get()
  78           delegate:self]);
  79 }
  80
  81 - (void)saveWindowPositionIfNeeded {
  82   if (!chrome::ShouldSaveWindowPlacement(browser_.get()))
  83     return;
  84
  85   // If we're in fullscreen mode, save the position of the regular window
  86   // instead.
  87   NSWindow* window = [self isFullscreen] ? savedRegularWindow_ : [self window];
  88
  89   // Window positions are stored relative to the origin of the primary monitor.
  90   NSRect monitorFrame = [[[NSScreen screens] objectAtIndex:0] frame];
  91   NSScreen* windowScreen = [window screen];
  92
  93   // Start with the window's frame, which is in virtual coordinates.
  94   // Do some y twiddling to flip the coordinate system.
  95   gfx::Rect bounds(NSRectToCGRect([window frame]));
  96   bounds.set_y(monitorFrame.size.height - bounds.y() - bounds.height());
  97
  98   // Browser::SaveWindowPlacement saves information for session restore.
  99   ui::WindowShowState show_state = ui::SHOW_STATE_NORMAL;
 100   if ([window isMiniaturized])
 101     show_state = ui::SHOW_STATE_MINIMIZED;
 102   else if ([self isFullscreen])
 103     show_state = ui::SHOW_STATE_FULLSCREEN;
 104   chrome::SaveWindowPlacement(browser_.get(), bounds, show_state);
 105
 106   // |windowScreen| can be nil (for example, if the monitor arrangement was
 107   // changed while in fullscreen mode).  If we see a nil screen, return without
 108   // saving.
 109   // TODO(rohitrao): We should just not save anything for fullscreen windows.
 110   // http://crbug.com/36479.
 111   if (!windowScreen)
 112     return;
 113
 114   // Only save main window information to preferences.
 115   PrefService* prefs = browser_->profile()->GetPrefs();
 116   if (!prefs || browser_ != chrome::GetLastActiveBrowser())
 117     return;
 118
 119   // Save the current work area, in flipped coordinates.
 120   gfx::Rect workArea(NSRectToCGRect([windowScreen visibleFrame]));
 121   workArea.set_y(monitorFrame.size.height - workArea.y() - workArea.height());
 122
 123   DictionaryPrefUpdate update(
 124       prefs,
 125       chrome::GetWindowPlacementKey(browser_.get()).c_str());
 126   DictionaryValue* windowPreferences = update.Get();
 127   windowPreferences->SetInteger("left", bounds.x());
 128   windowPreferences->SetInteger("top", bounds.y());
 129   windowPreferences->SetInteger("right", bounds.right());
 130   windowPreferences->SetInteger("bottom", bounds.bottom());
 131   windowPreferences->SetBoolean("maximized", false);
 132   windowPreferences->SetBoolean("always_on_top", false);
 133   windowPreferences->SetInteger("work_area_left", workArea.x());
 134   windowPreferences->SetInteger("work_area_top", workArea.y());
 135   windowPreferences->SetInteger("work_area_right", workArea.right());
 136   windowPreferences->SetInteger("work_area_bottom", workArea.bottom());
 137 }
 138
 139 - (NSRect)window:(NSWindow*)window
 140 willPositionSheet:(NSWindow*)sheet
 141        usingRect:(NSRect)defaultSheetRect {
 142   // Position the sheet as follows:
 143   //  - If the bookmark bar is hidden or shown as a bubble (on the NTP when the
 144   //    bookmark bar is disabled), position the sheet immediately below the
 145   //    normal toolbar.
 146   //  - If the bookmark bar is shown (attached to the normal toolbar), position
 147   //    the sheet below the bookmark bar.
 148   //  - If the bookmark bar is currently animating, position the sheet according
 149   //    to where the bar will be when the animation ends.
 150   switch ([bookmarkBarController_ currentState]) {
 151     case BookmarkBar::SHOW: {
 152       NSRect bookmarkBarFrame = [[bookmarkBarController_ view] frame];
 153       defaultSheetRect.origin.y = bookmarkBarFrame.origin.y;
 154       break;
 155     }
 156     case BookmarkBar::HIDDEN:
 157     case BookmarkBar::DETACHED: {
 158       if ([self hasToolbar]) {
 159         NSRect toolbarFrame = [[toolbarController_ view] frame];
 160         defaultSheetRect.origin.y = toolbarFrame.origin.y;
 161       } else {
 162         // The toolbar is not shown in application mode. The sheet should be
 163         // located at the top of the window, under the title of the window.
 164         defaultSheetRect.origin.y = NSHeight([[window contentView] frame]) -
 165                                     defaultSheetRect.size.height;
 166       }
 167       break;
 168     }
 169   }
 170   return defaultSheetRect;
 171 }
 172
 173 - (void)layoutSubviews {
 174   // With the exception of the top tab strip, the subviews which we lay out are
 175   // subviews of the content view, so we mainly work in the content view's
 176   // coordinate system. Note, however, that the content view's coordinate system
 177   // and the window's base coordinate system should coincide.
 178   NSWindow* window = [self window];
 179   NSView* contentView = [window contentView];
 180   NSRect contentBounds = [contentView bounds];
 181   CGFloat minX = NSMinX(contentBounds);
 182   CGFloat minY = NSMinY(contentBounds);
 183   CGFloat width = NSWidth(contentBounds);
 184
 185   BOOL useSimplifiedFullscreen = CommandLine::ForCurrentProcess()->HasSwitch(
 186       switches::kEnableSimplifiedFullscreen);
 187
 188   // Suppress title drawing if necessary.
 189   if ([window respondsToSelector:@selector(setShouldHideTitle:)])
 190     [(id)window setShouldHideTitle:![self hasTitleBar]];
 191
 192   // Update z-order. The code below depends on this.
 193   [self updateSubviewZOrder:[self inPresentationMode]];
 194
 195   BOOL inPresentationMode = [self inPresentationMode];
 196   CGFloat floatingBarHeight = [self floatingBarHeight];
 197   // In presentation mode, |yOffset| accounts for the sliding position of the
 198   // floating bar and the extra offset needed to dodge the menu bar.
 199   CGFloat yOffset = inPresentationMode && !useSimplifiedFullscreen ?
 200       (std::floor((1 - floatingBarShownFraction_) * floatingBarHeight) -
 201           [presentationModeController_ floatingBarVerticalOffset]) : 0;
 202   CGFloat maxY = NSMaxY(contentBounds) + yOffset;
 203
 204   if ([self hasTabStrip]) {
 205     // If we need to lay out the top tab strip, replace |maxY| with a higher
 206     // value, and then lay out the tab strip.
 207     NSRect windowFrame = [contentView convertRect:[window frame] fromView:nil];
 208     maxY = NSHeight(windowFrame) + yOffset;
 209     if (useSimplifiedFullscreen && [self isFullscreen]) {
 210       CGFloat tabStripHeight = NSHeight([[self tabStripView] frame]);
 211       CGFloat revealAmount = (1 - floatingBarShownFraction_) * tabStripHeight;
 212       // In simplified fullscreen, only the toolbar is visible by default, and
 213       // the tabstrip and menu bar come down (each separately) when the user
 214       // mouses near the top of the window. Push the maxY of the toolbar up by
 215       // the amount of the tabstrip that is revealed, while removing the amount
 216       // of space needed by the menu bar.
 217       maxY += std::floor(
 218           revealAmount - [fullscreenModeController_ menuBarHeight]);
 219     }
 220     maxY = [self layoutTabStripAtMaxY:maxY
 221                                 width:width
 222                            fullscreen:[self isFullscreen]];
 223   }
 224
 225   // Sanity-check |maxY|.
 226   DCHECK_GE(maxY, minY);
 227   DCHECK_LE(maxY, NSMaxY(contentBounds) + yOffset);
 228
 229   // Place the toolbar at the top of the reserved area.
 230   maxY = [self layoutToolbarAtMinX:minX maxY:maxY width:width];
 231
 232   // If we're not displaying the bookmark bar below the info bar, then it goes
 233   // immediately below the toolbar.
 234   BOOL placeBookmarkBarBelowInfoBar = [self placeBookmarkBarBelowInfoBar];
 235   if (!placeBookmarkBarBelowInfoBar)
 236     maxY = [self layoutBookmarkBarAtMinX:minX maxY:maxY width:width];
 237
 238   // The floating bar backing view doesn't actually add any height.
 239   NSRect floatingBarBackingRect =
 240       NSMakeRect(minX, maxY, width, floatingBarHeight);
 241   [self layoutFloatingBarBackingView:floatingBarBackingRect
 242                     presentationMode:inPresentationMode];
 243
 244   // Place the find bar immediately below the toolbar/attached bookmark bar. In
 245   // presentation mode, it hangs off the top of the screen when the bar is
 246   // hidden.
 247   [findBarCocoaController_ positionFindBarViewAtMaxY:maxY maxWidth:width];
 248   [fullscreenExitBubbleController_ positionInWindowAtTop:maxY width:width];
 249
 250   // If in presentation mode, reset |maxY| to top of screen, so that the
 251   // floating bar slides over the things which appear to be in the content area.
 252   if (inPresentationMode ||
 253       (useSimplifiedFullscreen && !fullscreenUrl_.is_empty())) {
 254     maxY = NSMaxY(contentBounds);
 255   }
 256
 257   // Also place the info bar container immediate below the toolbar, except in
 258   // presentation mode in which case it's at the top of the visual content area.
 259   maxY = [self layoutInfoBarAtMinX:minX maxY:maxY width:width];
 260
 261   // If the bookmark bar is detached, place it next in the visual content area.
 262   if (placeBookmarkBarBelowInfoBar)
 263     maxY = [self layoutBookmarkBarAtMinX:minX maxY:maxY width:width];
 264
 265   // Place the download shelf, if any, at the bottom of the view.
 266   minY = [self layoutDownloadShelfAtMinX:minX minY:minY width:width];
 267
 268   // Finally, the content area takes up all of the remaining space.
 269   NSRect contentAreaRect = NSMakeRect(minX, minY, width, maxY - minY);
 270   [self layoutTabContentArea:contentAreaRect];
 271
 272   // Normally, we don't need to tell the toolbar whether or not to show the
 273   // divider, but things break down during animation.
 274   [toolbarController_ setDividerOpacity:[self toolbarDividerOpacity]];
 275 }
 276
 277 - (CGFloat)floatingBarHeight {
 278   if (![self inPresentationMode])
 279     return 0;
 280
 281   CGFloat totalHeight = [presentationModeController_ floatingBarVerticalOffset];
 282
 283   if ([self hasTabStrip])
 284     totalHeight += NSHeight([[self tabStripView] frame]);
 285
 286   if ([self hasToolbar]) {
 287     totalHeight += NSHeight([[toolbarController_ view] frame]);
 288   } else if ([self hasLocationBar]) {
 289     totalHeight += NSHeight([[toolbarController_ view] frame]) +
 290                    kLocBarTopInset + kLocBarBottomInset;
 291   }
 292
 293   if (![self placeBookmarkBarBelowInfoBar])
 294     totalHeight += NSHeight([[bookmarkBarController_ view] frame]);
 295
 296   return totalHeight;
 297 }
 298
 299 - (CGFloat)layoutTabStripAtMaxY:(CGFloat)maxY
 300                           width:(CGFloat)width
 301                      fullscreen:(BOOL)fullscreen {
 302   // Nothing to do if no tab strip.
 303   if (![self hasTabStrip])
 304     return maxY;
 305
 306   NSView* tabStripView = [self tabStripView];
 307   CGFloat tabStripHeight = NSHeight([tabStripView frame]);
 308   maxY -= tabStripHeight;
 309   [tabStripView setFrame:NSMakeRect(0, maxY, width, tabStripHeight)];
 310
 311   // Set left indentation based on fullscreen mode status.
 312   [tabStripController_ setLeftIndentForControls:(fullscreen ? 0 :
 313       [[tabStripController_ class] defaultLeftIndentForControls])];
 314
 315   // Lay out the icognito/avatar badge because calculating the indentation on
 316   // the right depends on it.
 317   if ([self shouldShowAvatar]) {
 318     NSView* avatarButton = [avatarButtonController_ view];
 319     CGFloat buttonHeight = std::min(
 320         static_cast<CGFloat>(profiles::kAvatarIconHeight), tabStripHeight);
 321     [avatarButton setFrameSize:NSMakeSize(NSWidth([avatarButton frame]),
 322                                           buttonHeight)];
 323
 324     // Actually place the badge *above* |maxY|, by +2 to miss the divider.
 325     CGFloat badgeXOffset = -kAvatarRightOffset;
 326     CGFloat badgeYOffset = 2 * [[avatarButton superview] cr_lineWidth];
 327     NSPoint origin =
 328         NSMakePoint(width - NSWidth([avatarButton frame]) + badgeXOffset,
 329                     maxY + badgeYOffset);
 330     [avatarButton setFrameOrigin:origin];
 331     [avatarButton setHidden:NO];  // Make sure it's shown.
 332   }
 333
 334   // Calculate the right indentation.  The default indentation built into the
 335   // tabstrip leaves enough room for the fullscreen button or presentation mode
 336   // toggle button on Lion.  On non-Lion systems, the right indent needs to be
 337   // adjusted to make room for the new tab button when an avatar is present.
 338   CGFloat rightIndent = 0;
 339   if (base::mac::IsOSLionOrLater() &&
 340       [[self window] isKindOfClass:[FramedBrowserWindow class]]) {
 341     FramedBrowserWindow* window =
 342         static_cast<FramedBrowserWindow*>([self window]);
 343     rightIndent += -[window fullScreenButtonOriginAdjustment].x;
 344   } else if ([self shouldShowAvatar]) {
 345     rightIndent += kAvatarTabStripShrink;
 346     NSButton* labelButton = [avatarButtonController_ labelButtonView];
 347     if (labelButton)
 348       rightIndent += NSWidth([labelButton frame]) + kAvatarRightOffset;
 349   }
 350   [tabStripController_ setRightIndentForControls:rightIndent];
 351
 352   // Go ahead and layout the tabs.
 353   [tabStripController_ layoutTabsWithoutAnimation];
 354
 355   return maxY;
 356 }
 357
 358 - (CGFloat)layoutToolbarAtMinX:(CGFloat)minX
 359                           maxY:(CGFloat)maxY
 360                          width:(CGFloat)width {
 361   NSView* toolbarView = [toolbarController_ view];
 362   NSRect toolbarFrame = [toolbarView frame];
 363   if ([self hasToolbar]) {
 364     // The toolbar is present in the window, so we make room for it.
 365     DCHECK(![toolbarView isHidden]);
 366     toolbarFrame.origin.x = minX;
 367     toolbarFrame.origin.y = maxY - NSHeight(toolbarFrame);
 368     toolbarFrame.size.width = width;
 369     maxY -= NSHeight(toolbarFrame);
 370   } else {
 371     if ([self hasLocationBar]) {
 372       // Location bar is present with no toolbar. Put a border of
 373       // |kLocBar...Inset| pixels around the location bar.
 374       // TODO(viettrungluu): This is moderately ridiculous. The toolbar should
 375       // really be aware of what its height should be (the way the toolbar
 376       // compression stuff is currently set up messes things up).
 377       DCHECK(![toolbarView isHidden]);
 378       toolbarFrame.origin.x = kLocBarLeftRightInset;
 379       toolbarFrame.origin.y = maxY - NSHeight(toolbarFrame) - kLocBarTopInset;
 380       toolbarFrame.size.width = width - 2 * kLocBarLeftRightInset;
 381       maxY -= kLocBarTopInset + NSHeight(toolbarFrame) + kLocBarBottomInset;
 382     } else {
 383       DCHECK([toolbarView isHidden]);
 384     }
 385   }
 386   [toolbarView setFrame:toolbarFrame];
 387   return maxY;
 388 }
 389
 390 - (BOOL)placeBookmarkBarBelowInfoBar {
 391   // If we are currently displaying the NTP detached bookmark bar or animating
 392   // to/from it (from/to anything else), we display the bookmark bar below the
 393   // info bar.
 394   return [bookmarkBarController_ isInState:BookmarkBar::DETACHED] ||
 395          [bookmarkBarController_ isAnimatingToState:BookmarkBar::DETACHED] ||
 396          [bookmarkBarController_ isAnimatingFromState:BookmarkBar::DETACHED];
 397 }
 398
 399 - (CGFloat)layoutBookmarkBarAtMinX:(CGFloat)minX
 400                               maxY:(CGFloat)maxY
 401                              width:(CGFloat)width {
 402   [bookmarkBarController_ updateHiddenState];
 403
 404   NSView* bookmarkBarView = [bookmarkBarController_ view];
 405   NSRect frame = [bookmarkBarView frame];
 406   frame.origin.x = minX;
 407   frame.origin.y = maxY - NSHeight(frame);
 408   frame.size.width = width;
 409   [bookmarkBarView setFrame:frame];
 410   maxY -= NSHeight(frame);
 411
 412   // Pin the bookmark bar to the top of the window and make the width flexible.
 413   [bookmarkBarView setAutoresizingMask:NSViewWidthSizable | NSViewMinYMargin];
 414
 415   // TODO(viettrungluu): Does this really belong here? Calling it shouldn't be
 416   // necessary in the non-NTP case.
 417   [bookmarkBarController_ layoutSubviews];
 418
 419   return maxY;
 420 }
 421
 422 - (void)layoutFloatingBarBackingView:(NSRect)frame
 423                     presentationMode:(BOOL)presentationMode {
 424   // Only display when in presentation mode.
 425   if (presentationMode) {
 426     // For certain window types such as app windows (e.g., the dev tools
 427     // window), there's no actual overlay. (Displaying one would result in an
 428     // overly sliding in only under the menu, which gives an ugly effect.)
 429     if (floatingBarBackingView_.get()) {
 430       // Set its frame.
 431       [floatingBarBackingView_ setFrame:frame];
 432     }
 433
 434     // But we want the logic to work as usual (for show/hide/etc. purposes).
 435     [presentationModeController_ overlayFrameChanged:frame];
 436   } else {
 437     // Okay to call even if |floatingBarBackingView_| is nil.
 438     if ([floatingBarBackingView_ superview])
 439       [floatingBarBackingView_ removeFromSuperview];
 440   }
 441 }
 442
 443 - (CGFloat)layoutInfoBarAtMinX:(CGFloat)minX
 444                           maxY:(CGFloat)maxY
 445                          width:(CGFloat)width {
 446   NSView* containerView = [infoBarContainerController_ view];
 447   NSRect containerFrame = [containerView frame];
 448   maxY -= NSHeight(containerFrame);
 449   maxY += [infoBarContainerController_ overlappingTipHeight];
 450   containerFrame.origin.x = minX;
 451   containerFrame.origin.y = maxY;
 452   containerFrame.size.width = width;
 453   [containerView setFrame:containerFrame];
 454   return maxY;
 455 }
 456
 457 - (CGFloat)layoutDownloadShelfAtMinX:(CGFloat)minX
 458                                 minY:(CGFloat)minY
 459                                width:(CGFloat)width {
 460   if (downloadShelfController_.get()) {
 461     NSView* downloadView = [downloadShelfController_ view];
 462     NSRect downloadFrame = [downloadView frame];
 463     downloadFrame.origin.x = minX;
 464     downloadFrame.origin.y = minY;
 465     downloadFrame.size.width = width;
 466     [downloadView setFrame:downloadFrame];
 467     minY += NSHeight(downloadFrame);
 468   }
 469   return minY;
 470 }
 471
 472 - (void)layoutTabContentArea:(NSRect)newFrame {
 473   NSView* tabContentView = [self tabContentArea];
 474   NSRect tabContentFrame = [tabContentView frame];
 475
 476   bool contentShifted =
 477       NSMaxY(tabContentFrame) != NSMaxY(newFrame) ||
 478       NSMinX(tabContentFrame) != NSMinX(newFrame);
 479
 480   tabContentFrame = newFrame;
 481   [tabContentView setFrame:tabContentFrame];
 482
 483   // If the relayout shifts the content area up or down, let the renderer know.
 484   if (contentShifted) {
 485     if (WebContents* contents =
 486             browser_->tab_strip_model()->GetActiveWebContents()) {
 487       if (RenderWidgetHostView* rwhv = contents->GetRenderWidgetHostView())
 488         rwhv->WindowFrameChanged();
 489     }
 490   }
 491 }
 492
 493 - (void)adjustToolbarAndBookmarkBarForCompression:(CGFloat)compression {
 494   CGFloat newHeight =
 495       [toolbarController_ desiredHeightForCompression:compression];
 496   NSRect toolbarFrame = [[toolbarController_ view] frame];
 497   CGFloat deltaH = newHeight - toolbarFrame.size.height;
 498
 499   if (deltaH == 0)
 500     return;
 501
 502   toolbarFrame.size.height = newHeight;
 503   NSRect bookmarkFrame = [[bookmarkBarController_ view] frame];
 504   bookmarkFrame.size.height = bookmarkFrame.size.height - deltaH;
 505   [[toolbarController_ view] setFrame:toolbarFrame];
 506   [[bookmarkBarController_ view] setFrame:bookmarkFrame];
 507   [self layoutSubviews];
 508 }
 509
 510 // Fullscreen and presentation mode methods
 511
 512 - (BOOL)shouldShowPresentationModeToggle {
 513   return chrome::mac::SupportsSystemFullscreen() && [self isFullscreen];
 514 }
 515
 516 - (void)moveViewsForFullscreenForSnowLeopard:(BOOL)fullscreen
 517     regularWindow:(NSWindow*)regularWindow
 518     fullscreenWindow:(NSWindow*)fullscreenWindow {
 519   // This method is only for systems without fullscreen support.
 520   DCHECK(!chrome::mac::SupportsSystemFullscreen());
 521
 522   NSWindow* sourceWindow = fullscreen ? regularWindow : fullscreenWindow;
 523   NSWindow* destWindow = fullscreen ? fullscreenWindow : regularWindow;
 524
 525   // Close the bookmark bubble, if it's open.  Use |-ok:| instead of |-cancel:|
 526   // or |-close| because that matches the behavior when the bubble loses key
 527   // status.
 528   [bookmarkBubbleController_ ok:self];
 529
 530   // Save the current first responder so we can restore after views are moved.
 531   base::scoped_nsobject<FocusTracker> focusTracker(
 532       [[FocusTracker alloc] initWithWindow:sourceWindow]);
 533
 534   // While we move views (and focus) around, disable any bar visibility changes.
 535   [self disableBarVisibilityUpdates];
 536
 537   // Retain the tab strip view while we remove it from its superview.
 538   base::scoped_nsobject<NSView> tabStripView;
 539   if ([self hasTabStrip]) {
 540     tabStripView.reset([[self tabStripView] retain]);
 541     [tabStripView removeFromSuperview];
 542   }
 543
 544   // Ditto for the content view.
 545   base::scoped_nsobject<NSView> contentView(
 546       [[sourceWindow contentView] retain]);
 547   // Disable autoresizing of subviews while we move views around. This prevents
 548   // spurious renderer resizes.
 549   [contentView setAutoresizesSubviews:NO];
 550   [contentView removeFromSuperview];
 551
 552   // Have to do this here, otherwise later calls can crash because the window
 553   // has no delegate.
 554   [sourceWindow setDelegate:nil];
 555   [destWindow setDelegate:self];
 556
 557   // With this call, valgrind complains that a "Conditional jump or move depends
 558   // on uninitialised value(s)".  The error happens in -[NSThemeFrame
 559   // drawOverlayRect:].  I'm pretty convinced this is an Apple bug, but there is
 560   // no visual impact.  I have been unable to tickle it away with other window
 561   // or view manipulation Cocoa calls.  Stack added to suppressions_mac.txt.
 562   [contentView setAutoresizesSubviews:YES];
 563   [destWindow setContentView:contentView];
 564
 565   // Move the incognito badge if present.
 566   if ([self shouldShowAvatar]) {
 567     [[avatarButtonController_ view] removeFromSuperview];
 568     [[avatarButtonController_ view] setHidden:YES];  // Will be shown in layout.
 569     [[[destWindow contentView] superview] addSubview:
 570         [avatarButtonController_ view]];
 571   }
 572
 573   // Add the tab strip after setting the content view and moving the incognito
 574   // badge (if any), so that the tab strip will be on top (in the z-order).
 575   if ([self hasTabStrip])
 576     [[[destWindow contentView] superview] addSubview:tabStripView];
 577
 578   [sourceWindow setWindowController:nil];
 579   [self setWindow:destWindow];
 580   [destWindow setWindowController:self];
 581
 582   // Move the status bubble over, if we have one.
 583   if (statusBubble_)
 584     statusBubble_->SwitchParentWindow(destWindow);
 585
 586   // Move the title over.
 587   [destWindow setTitle:[sourceWindow title]];
 588
 589   // The window needs to be onscreen before we can set its first responder.
 590   // Ordering the window to the front can change the active Space (either to
 591   // the window's old Space or to the application's assigned Space). To prevent
 592   // this by temporarily change the collectionBehavior.
 593   NSWindowCollectionBehavior behavior = [sourceWindow collectionBehavior];
 594   [destWindow setCollectionBehavior:
 595       NSWindowCollectionBehaviorMoveToActiveSpace];
 596   [destWindow makeKeyAndOrderFront:self];
 597   [destWindow setCollectionBehavior:behavior];
 598
 599   [focusTracker restoreFocusInWindow:destWindow];
 600   [sourceWindow orderOut:self];
 601
 602   // We're done moving focus, so re-enable bar visibility changes.
 603   [self enableBarVisibilityUpdates];
 604 }
 605
 606 - (void)setPresentationModeInternal:(BOOL)presentationMode
 607                       forceDropdown:(BOOL)forceDropdown {
 608   if (presentationMode == [self inPresentationMode])
 609     return;
 610
 611   if (presentationMode) {
 612     BOOL fullscreen_for_tab =
 613         browser_->fullscreen_controller()->IsFullscreenForTabOrPending();
 614     BOOL kiosk_mode =
 615         CommandLine::ForCurrentProcess()->HasSwitch(switches::kKioskMode);
 616     BOOL showDropdown = !fullscreen_for_tab &&
 617         !kiosk_mode &&
 618         (forceDropdown || [self floatingBarHasFocus]);
 619     NSView* contentView = [[self window] contentView];
 620     presentationModeController_.reset(
 621         [[PresentationModeController alloc] initWithBrowserController:self]);
 622     [presentationModeController_ enterPresentationModeForContentView:contentView
 623                                  showDropdown:showDropdown];
 624   } else {
 625     [presentationModeController_ exitPresentationMode];
 626     presentationModeController_.reset();
 627   }
 628
 629   [self adjustUIForPresentationMode:presentationMode];
 630   [self layoutSubviews];
 631 }
 632
 633 // TODO(rohitrao): This method is misnamed now, since there is a flag that
 634 // enables 10.6-style fullscreen on newer OSes.
 635 - (void)enterFullscreenForSnowLeopard {
 636   // Fade to black.
 637   const CGDisplayReservationInterval kFadeDurationSeconds = 0.6;
 638   Boolean didFadeOut = NO;
 639   CGDisplayFadeReservationToken token;
 640   if (CGAcquireDisplayFadeReservation(kFadeDurationSeconds, &token)
 641       == kCGErrorSuccess) {
 642     didFadeOut = YES;
 643     CGDisplayFade(token, kFadeDurationSeconds / 2, kCGDisplayBlendNormal,
 644         kCGDisplayBlendSolidColor, 0.0, 0.0, 0.0, /*synchronous=*/true);
 645   }
 646
 647   // Create the fullscreen window.  After this line, isFullscreen will return
 648   // YES.
 649   fullscreenWindow_.reset([[self createFullscreenWindow] retain]);
 650   savedRegularWindow_ = [[self window] retain];
 651   savedRegularWindowFrame_ = [savedRegularWindow_ frame];
 652
 653   [self moveViewsForFullscreenForSnowLeopard:YES
 654                                regularWindow:[self window]
 655                             fullscreenWindow:fullscreenWindow_.get()];
 656
 657   // When simplified fullscreen is enabled, do not enter presentation mode.
 658   const CommandLine* command_line = CommandLine::ForCurrentProcess();
 659   if (command_line->HasSwitch(switches::kEnableSimplifiedFullscreen)) {
 660     // TODO(rohitrao): Add code to manage the menubar here.
 661   } else {
 662     [self adjustUIForPresentationMode:YES];
 663     [self setPresentationModeInternal:YES forceDropdown:NO];
 664   }
 665
 666   [self layoutSubviews];
 667
 668   [self windowDidEnterFullScreen:nil];
 669
 670   // Fade back in.
 671   if (didFadeOut) {
 672     CGDisplayFade(token, kFadeDurationSeconds / 2, kCGDisplayBlendSolidColor,
 673         kCGDisplayBlendNormal, 0.0, 0.0, 0.0, /*synchronous=*/false);
 674     CGReleaseDisplayFadeReservation(token);
 675   }
 676 }
 677
 678 - (void)exitFullscreenForSnowLeopard {
 679   // TODO(rohitrao): This method is misnamed now, since there is a flag that
 680   // enables 10.6-style fullscreen on newer OSes.
 681   DCHECK(!chrome::mac::SupportsSystemFullscreen());
 682
 683   // Fade to black.
 684   const CGDisplayReservationInterval kFadeDurationSeconds = 0.6;
 685   Boolean didFadeOut = NO;
 686   CGDisplayFadeReservationToken token;
 687   if (CGAcquireDisplayFadeReservation(kFadeDurationSeconds, &token)
 688       == kCGErrorSuccess) {
 689     didFadeOut = YES;
 690     CGDisplayFade(token, kFadeDurationSeconds / 2, kCGDisplayBlendNormal,
 691         kCGDisplayBlendSolidColor, 0.0, 0.0, 0.0, /*synchronous=*/true);
 692   }
 693
 694   // When simplified fullscreen is enabled, the menubar status is managed
 695   // directly by BWC.
 696   const CommandLine* command_line = CommandLine::ForCurrentProcess();
 697   if (command_line->HasSwitch(switches::kEnableSimplifiedFullscreen)) {
 698     // TODO(rohitrao): Add code to manage the menubar here.
 699   }
 700
 701   [self windowWillExitFullScreen:nil];
 702
 703   [self moveViewsForFullscreenForSnowLeopard:NO
 704                                         regularWindow:savedRegularWindow_
 705                                      fullscreenWindow:fullscreenWindow_.get()];
 706
 707   // When exiting fullscreen mode, we need to call layoutSubviews manually.
 708   [savedRegularWindow_ autorelease];
 709   savedRegularWindow_ = nil;
 710   fullscreenWindow_.reset();
 711   [self layoutSubviews];
 712
 713   [self windowDidExitFullScreen:nil];
 714
 715   // Fade back in.
 716   if (didFadeOut) {
 717     CGDisplayFade(token, kFadeDurationSeconds / 2, kCGDisplayBlendSolidColor,
 718         kCGDisplayBlendNormal, 0.0, 0.0, 0.0, /*synchronous=*/false);
 719     CGReleaseDisplayFadeReservation(token);
 720   }
 721 }
 722
 723 // TODO(rohitrao): This function has shrunk into uselessness, and
 724 // |-setFullscreen:| has grown rather large.  Find a good way to break up
 725 // |-setFullscreen:| into smaller pieces.  http://crbug.com/36449
 726 - (void)adjustUIForPresentationMode:(BOOL)fullscreen {
 727   // Create the floating bar backing view if necessary.
 728   if (fullscreen && !floatingBarBackingView_.get() &&
 729       ([self hasTabStrip] || [self hasToolbar] || [self hasLocationBar])) {
 730     floatingBarBackingView_.reset(
 731         [[FloatingBarBackingView alloc] initWithFrame:NSZeroRect]);
 732     [floatingBarBackingView_ setAutoresizingMask:(NSViewWidthSizable |
 733                                                   NSViewMinYMargin)];
 734   }
 735
 736   // Force the bookmark bar z-order to update.
 737   [[bookmarkBarController_ view] removeFromSuperview];
 738   [self updateSubviewZOrder:fullscreen];
 739   [self updateAllowOverlappingViews:fullscreen];
 740 }
 741
 742 - (void)showFullscreenExitBubbleIfNecessary {
 743   // This method is called in response to
 744   // |-updateFullscreenExitBubbleURL:bubbleType:|. If on Lion the system is
 745   // transitioning, do not show the bubble because it will cause visual jank
 746   // <http://crbug.com/130649>. This will be called again as part of
 747   // |-windowDidEnterFullScreen:|, so arrange to do that work then instead.
 748   if (enteringFullscreen_)
 749     return;
 750
 751   [presentationModeController_ ensureOverlayHiddenWithAnimation:NO delay:NO];
 752
 753   if (fullscreenBubbleType_ == FEB_TYPE_NONE ||
 754       fullscreenBubbleType_ == FEB_TYPE_BROWSER_FULLSCREEN_EXIT_INSTRUCTION) {
 755     // Show no exit instruction bubble on Mac when in Browser Fullscreen.
 756     [self destroyFullscreenExitBubbleIfNecessary];
 757   } else {
 758     [fullscreenExitBubbleController_ closeImmediately];
 759     fullscreenExitBubbleController_.reset(
 760         [[FullscreenExitBubbleController alloc]
 761             initWithOwner:self
 762                   browser:browser_.get()
 763                       url:fullscreenUrl_
 764                bubbleType:fullscreenBubbleType_]);
 765     [fullscreenExitBubbleController_ showWindow];
 766   }
 767 }
 768
 769 - (void)destroyFullscreenExitBubbleIfNecessary {
 770   [fullscreenExitBubbleController_ closeImmediately];
 771   fullscreenExitBubbleController_.reset();
 772 }
 773
 774 - (void)contentViewDidResize:(NSNotification*)notification {
 775   [self layoutSubviews];
 776 }
 777
 778 - (void)registerForContentViewResizeNotifications {
 779   [[NSNotificationCenter defaultCenter]
 780       addObserver:self
 781          selector:@selector(contentViewDidResize:)
 782              name:NSViewFrameDidChangeNotification
 783            object:[[self window] contentView]];
 784 }
 785
 786 - (void)deregisterForContentViewResizeNotifications {
 787   [[NSNotificationCenter defaultCenter]
 788       removeObserver:self
 789                 name:NSViewFrameDidChangeNotification
 790               object:[[self window] contentView]];
 791 }
 792
 793 - (NSSize)window:(NSWindow*)window
 794     willUseFullScreenContentSize:(NSSize)proposedSize {
 795   return proposedSize;
 796 }
 797
 798 - (NSApplicationPresentationOptions)window:(NSWindow*)window
 799     willUseFullScreenPresentationOptions:(NSApplicationPresentationOptions)opt {
 800   return (opt |
 801           NSApplicationPresentationAutoHideDock |
 802           NSApplicationPresentationAutoHideMenuBar);
 803 }
 804
 805 - (void)windowWillEnterFullScreen:(NSNotification*)notification {
 806   [self registerForContentViewResizeNotifications];
 807
 808   NSWindow* window = [self window];
 809   savedRegularWindowFrame_ = [window frame];
 810   BOOL mode = enteringPresentationMode_ ||
 811        browser_->fullscreen_controller()->IsFullscreenForTabOrPending();
 812   enteringFullscreen_ = YES;
 813   [self setPresentationModeInternal:mode forceDropdown:NO];
 814 }
 815
 816 - (void)windowDidEnterFullScreen:(NSNotification*)notification {
 817   if (chrome::mac::SupportsSystemFullscreen())
 818     [self deregisterForContentViewResizeNotifications];
 819   enteringFullscreen_ = NO;
 820   enteringPresentationMode_ = NO;
 821
 822   const CommandLine* command_line = CommandLine::ForCurrentProcess();
 823   if (command_line->HasSwitch(switches::kEnableSimplifiedFullscreen) &&
 824       fullscreenUrl_.is_empty()) {
 825     fullscreenModeController_.reset([[FullscreenModeController alloc]
 826         initWithBrowserWindowController:self]);
 827   }
 828
 829   [self showFullscreenExitBubbleIfNecessary];
 830   browser_->WindowFullscreenStateChanged();
 831 }
 832
 833 - (void)windowWillExitFullScreen:(NSNotification*)notification {
 834   if (chrome::mac::SupportsSystemFullscreen())
 835     [self registerForContentViewResizeNotifications];
 836   fullscreenModeController_.reset();
 837   [self destroyFullscreenExitBubbleIfNecessary];
 838   [self setPresentationModeInternal:NO forceDropdown:NO];
 839 }
 840
 841 - (void)windowDidExitFullScreen:(NSNotification*)notification {
 842   if (chrome::mac::SupportsSystemFullscreen())
 843     [self deregisterForContentViewResizeNotifications];
 844   browser_->WindowFullscreenStateChanged();
 845 }
 846
 847 - (void)windowDidFailToEnterFullScreen:(NSWindow*)window {
 848   [self deregisterForContentViewResizeNotifications];
 849   enteringFullscreen_ = NO;
 850   [self setPresentationModeInternal:NO forceDropdown:NO];
 851
 852   // Force a relayout to try and get the window back into a reasonable state.
 853   [self layoutSubviews];
 854 }
 855
 856 - (void)windowDidFailToExitFullScreen:(NSWindow*)window {
 857   [self deregisterForContentViewResizeNotifications];
 858
 859   // Force a relayout to try and get the window back into a reasonable state.
 860   [self layoutSubviews];
 861 }
 862
 863 - (void)enableBarVisibilityUpdates {
 864   // Early escape if there's nothing to do.
 865   if (barVisibilityUpdatesEnabled_)
 866     return;
 867
 868   barVisibilityUpdatesEnabled_ = YES;
 869
 870   if ([barVisibilityLocks_ count])
 871     [presentationModeController_ ensureOverlayShownWithAnimation:NO delay:NO];
 872   else
 873     [presentationModeController_ ensureOverlayHiddenWithAnimation:NO delay:NO];
 874 }
 875
 876 - (void)disableBarVisibilityUpdates {
 877   // Early escape if there's nothing to do.
 878   if (!barVisibilityUpdatesEnabled_)
 879     return;
 880
 881   barVisibilityUpdatesEnabled_ = NO;
 882   [presentationModeController_ cancelAnimationAndTimers];
 883 }
 884
 885 - (CGFloat)toolbarDividerOpacity {
 886   return [bookmarkBarController_ toolbarDividerOpacity];
 887 }
 888
 889 - (void)updateSubviewZOrder:(BOOL)inPresentationMode {
 890   NSView* contentView = [[self window] contentView];
 891   NSView* toolbarView = [toolbarController_ view];
 892
 893   if (inPresentationMode) {
 894     // Toolbar is above tab contents so that it can slide down from top of
 895     // screen.
 896     [contentView cr_ensureSubview:toolbarView
 897                      isPositioned:NSWindowAbove
 898                        relativeTo:[self tabContentArea]];
 899   } else {
 900     // Toolbar is below tab contents so that the info bar arrow can appear above
 901     // it.
 902     [contentView cr_ensureSubview:toolbarView
 903                      isPositioned:NSWindowBelow
 904                        relativeTo:[self tabContentArea]];
 905   }
 906
 907   // The bookmark bar is always below the toolbar.
 908   [contentView cr_ensureSubview:[bookmarkBarController_ view]
 909                    isPositioned:NSWindowBelow
 910                      relativeTo:toolbarView];
 911
 912   if (inPresentationMode) {
 913     // In presentation mode the info bar is below all other views.
 914     [contentView cr_ensureSubview:[infoBarContainerController_ view]
 915                      isPositioned:NSWindowBelow
 916                        relativeTo:[self tabContentArea]];
 917   } else {
 918     // Above the toolbar but still below tab contents. Similar to the bookmark
 919     // bar, this allows Instant results to be above the info bar.
 920     [contentView cr_ensureSubview:[infoBarContainerController_ view]
 921                      isPositioned:NSWindowAbove
 922                        relativeTo:toolbarView];
 923   }
 924
 925   // The find bar is above everything.
 926   if (findBarCocoaController_) {
 927     NSView* relativeView = nil;
 928     if (inPresentationMode)
 929       relativeView = toolbarView;
 930     else
 931       relativeView = [self tabContentArea];
 932     [contentView cr_ensureSubview:[findBarCocoaController_ view]
 933                      isPositioned:NSWindowAbove
 934                        relativeTo:relativeView];
 935   }
 936
 937   if (floatingBarBackingView_) {
 938     if ([floatingBarBackingView_ cr_isBelowView:[self tabContentArea]])
 939       [floatingBarBackingView_ removeFromSuperview];
 940     if ([self placeBookmarkBarBelowInfoBar]) {
 941       [contentView cr_ensureSubview:floatingBarBackingView_
 942                        isPositioned:NSWindowAbove
 943                          relativeTo:[bookmarkBarController_ view]];
 944     } else {
 945       [contentView cr_ensureSubview:floatingBarBackingView_
 946                        isPositioned:NSWindowBelow
 947                          relativeTo:[bookmarkBarController_ view]];
 948     }
 949   }
 950 }
 951
 952 - (BOOL)shouldAllowOverlappingViews:(BOOL)inPresentationMode {
 953   if (inPresentationMode)
 954     return YES;
 955
 956   if (findBarCocoaController_ &&
 957       ![[findBarCocoaController_ findBarView] isHidden]) {
 958     return YES;
 959   }
 960
 961   if (overlappedViewCount_)
 962     return YES;
 963
 964   return NO;
 965 }
 966
 967 - (void)updateAllowOverlappingViews:(BOOL)inPresentationMode {
 968   WebContents* contents = browser_->tab_strip_model()->GetActiveWebContents();
 969   if (!contents)
 970     return;
 971
 972   BOOL allowOverlappingViews =
 973       [self shouldAllowOverlappingViews:inPresentationMode];
 974
 975   // The rendering path with overlapping views disabled causes bugs when
 976   // transitioning between composited and non-composited mode.
 977   // http://crbug.com/279472
 978   allowOverlappingViews = YES;
 979
 980   if (allowOverlappingViews &&
 981       [self coreAnimationStatus] ==
 982           browser_window_controller::kCoreAnimationEnabledLazy) {
 983     [[[self window] contentView] setWantsLayer:YES];
 984     [[self tabStripView] setWantsLayer:YES];
 985   }
 986
 987   contents->GetView()->SetAllowOverlappingViews(allowOverlappingViews);
 988
 989   DevToolsWindow* devToolsWindow =
 990       DevToolsWindow::GetDockedInstanceForInspectedTab(contents);
 991   if (devToolsWindow) {
 992     devToolsWindow->web_contents()->GetView()->
 993         SetAllowOverlappingViews(allowOverlappingViews);
 994   }
 995 }
 996
 997 - (void)updateInfoBarTipVisibility {
 998   // If there's no toolbar then hide the infobar tip.
 999   [infoBarContainerController_
1000       setShouldSuppressTopInfoBarTip:![self hasToolbar]];
1001 }
1002
1003 - (browser_window_controller::CoreAnimationStatus)coreAnimationStatus {
1004   // TODO(sail) Remove this.
1005   if (!CommandLine::ForCurrentProcess()->HasSwitch(
1006           switches::kUseCoreAnimation)) {
1007     return browser_window_controller::kCoreAnimationDisabled;
1008   }
1009   if (CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
1010           switches::kUseCoreAnimation) == "lazy") {
1011     return browser_window_controller::kCoreAnimationEnabledLazy;
1012   }
1013   if (CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
1014           switches::kUseCoreAnimation) == "disabled") {
1015     return browser_window_controller::kCoreAnimationDisabled;
1016   }
1017   return browser_window_controller::kCoreAnimationEnabledAlways;
1018 }
1019
1020 @end  // @implementation BrowserWindowController(Private)