FullscreenExitBubble temp UI for Mac.

chrome/browser/ui/cocoa/browser_window_controller.mm

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "chrome/browser/ui/cocoa/browser_window_controller.h"
 
 #include <Carbon/Carbon.h>
 
 #include <cmath>
 #include <numeric>
@@ skipping 1390 matching lines @@
 - (DownloadShelfController*)downloadShelf {
   if (!downloadShelfController_.get()) {
     downloadShelfController_.reset([[DownloadShelfController alloc]
         initWithBrowser:browser_.get() resizeDelegate:self]);
     [[[self window] contentView] addSubview:[downloadShelfController_ view]];
     [downloadShelfController_ show:nil];
   }
   return downloadShelfController_;
 }
 
+- (CGFloat)maxYForViewInsideContent {
+  return [self placeBookmarkBarBelowInfoBar] ?
+      NSMinY([[toolbarController_ view] frame]) :
+      NSMinY([[bookmarkBarController_ view] frame]);
+}
+
 - (void)addFindBar:(FindBarCocoaController*)findBarCocoaController {
   // Shouldn't call addFindBar twice.
   DCHECK(!findBarCocoaController_.get());
 
   // Create a controller for the findbar.
   findBarCocoaController_.reset([findBarCocoaController retain]);
   NSView* contentView = [[self window] contentView];
   NSView* relativeView =
       [self inPresentationMode] ? [toolbarController_ view] :
                                   [infoBarContainerController_ view];
   [contentView addSubview:[findBarCocoaController_ view]
                positioned:NSWindowAbove
                relativeTo:relativeView];
 
   // Place the find bar immediately below the toolbar/attached bookmark bar. In
   // presentation mode, it hangs off the top of the screen when the bar is
   // hidden.
-  CGFloat maxY = [self placeBookmarkBarBelowInfoBar] ?
-      NSMinY([[toolbarController_ view] frame]) :
-      NSMinY([[bookmarkBarController_ view] frame]);
+  CGFloat maxY = [self maxYForViewInsideContent];
   CGFloat maxWidth = NSWidth([contentView frame]);
   [findBarCocoaController_ positionFindBarViewAtMaxY:maxY maxWidth:maxWidth];
 
   // This allows the FindBarCocoaController to call |layoutSubviews| and get
   // its position adjusted.
   [findBarCocoaController_ setBrowserWindowController:self];
 }
 
 - (NSWindow*)createFullscreenWindow {
   return [[[FullscreenWindow alloc] initForScreen:[[self window] screen]]
@@ skipping 500 matching lines @@
   if (fullscreen == [self isFullscreen])
     return;
 
   if (![self supportsFullscreen])
     return;
 
   if (base::mac::IsOSLionOrLater()) {
     enteredPresentationModeFromFullscreen_ = YES;
     if ([[self window] isKindOfClass:[FramedBrowserWindow class]])
       [static_cast<FramedBrowserWindow*>([self window]) toggleSystemFullScreen];
-    return;
+  } else {
+    if (fullscreen)
+      [self enterFullscreenForSnowLeopardOrEarlier];
+    else
+      [self exitFullscreenForSnowLeopardOrEarlier];
   }
 
-  if (fullscreen)
-    [self enterFullscreenForSnowLeopardOrEarlier];
-  else
-    [self exitFullscreenForSnowLeopardOrEarlier];
+  // Disable the floating tab bar if this fullscreen request was from a page.
+  // It will be re-enabled by the FullscreenExitBubble after it disappears.

[Nico, 2011/09/15 20:09:14]

Have you tested this with the "always on" overlay mode on Lion? I suppose when
the user is in that mode and a tab requests fullscreen, you'd want to hide the
overlay until the js fullscreen is done, but still stay in lion fullscreen all
the time?

[jeremya, 2011/09/16 03:39:58]

Good call. Testing on Lion reveals a bunch of bugs related to the difference
between presentation mode and fullscreen mode, which are now fixed.

+  BOOL show_exit_info_bubble = browser_->is_fullscreen_for_tab();
+  [self setShowFloatingChrome:fullscreen && !show_exit_info_bubble];
+
+  if (fullscreen && show_exit_info_bubble) {
+    fullscreenExitBubbleController_.reset(
+        [[FullscreenExitBubbleController alloc] initWithOwner:self
+                                                      browser:browser_.get()]);
+    NSView* contentView = [[self window] contentView];
+    CGFloat maxWidth = NSWidth([contentView frame]);
+    CGFloat maxY = [self maxYForViewInsideContent];
+    [fullscreenExitBubbleController_
+        positionInWindowAtTop:maxY width:maxWidth];
+    [contentView addSubview:[fullscreenExitBubbleController_ view]];
+  } else {
+    [[fullscreenExitBubbleController_ view] removeFromSuperview];
+    fullscreenExitBubbleController_.reset();
+  }
 }
 
 - (BOOL)isFullscreen {
   return (fullscreenWindow_.get() != nil) ||
          ([[self window] styleMask] & NSFullScreenWindowMask);
 }
 
 - (void)togglePresentationModeForLionOrLater:(id)sender {
   // Called only by the presentation mode toggle button.
   DCHECK(base::mac::IsOSLionOrLater());
@@ skipping 76 matching lines @@
 
 - (CGFloat)floatingBarShownFraction {
   return floatingBarShownFraction_;
 }
 
 - (void)setFloatingBarShownFraction:(CGFloat)fraction {
   floatingBarShownFraction_ = fraction;
   [self layoutSubviews];
 }
 
+- (void)setShowFloatingChrome:(BOOL)showChrome {
+  showFloatingChrome_ = showChrome;
+  [self layoutSubviews];
+}
+
 - (BOOL)isBarVisibilityLockedForOwner:(id)owner {
   DCHECK(owner);
   DCHECK(barVisibilityLocks_);
   return [barVisibilityLocks_ containsObject:owner];
 }
 
 - (void)lockBarVisibilityForOwner:(id)owner
                     withAnimation:(BOOL)animate
                             delay:(BOOL)delay {
   if (![self isBarVisibilityLockedForOwner:owner]) {
@@ skipping 92 matching lines @@
 
 - (BOOL)supportsBookmarkBar {
   return [self supportsWindowFeature:Browser::FEATURE_BOOKMARKBAR];
 }
 
 - (BOOL)isTabbedWindow {
   return browser_->is_type_tabbed();
 }
 
 @end  // @implementation BrowserWindowController(WindowType)