Mac: the return of the tab-modal-sheets patch.

chrome/browser/cocoa/tab_strip_controller.mm

 // Copyright (c) 2009 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/cocoa/tab_strip_controller.h"
 
 #import <QuartzCore/QuartzCore.h>
 
 #include <limits>
 #include <string>
@@ skipping 368 matching lines @@
   NSArray* subviews = [switchView_ subviews];
   if ([subviews count]) {
     NSView* oldView = [subviews objectAtIndex:0];
     [switchView_ replaceSubview:oldView with:newView];
   } else {
     [switchView_ addSubview:newView];
   }
 
   // Make sure the new tabs's sheets are visible (necessary when a background
   // tab opened a sheet while it was in the background and now becomes active).
+  // TODO(viettrungluu): Directly iterating over the |TabContents|'s
+  // (essentially internal, private) list isn't great -- I'd like to get rid of
+  // this and somehow move it into |TabContents| itself (or provide a cleaner
+  // interface).
   TabContents* newTab = tabStripModel_->GetTabContentsAt(modelIndex);
   DCHECK(newTab);
   if (newTab) {
     TabContents::ConstrainedWindowList::iterator it, end;
     it = newTab->constrained_window_begin();
     end = newTab->constrained_window_end();
 
     // GTMWindowSheetController supports only one sheet at a time.
     if (it != end) {
       NSWindowController* controller = [[newView window] windowController];
@@ skipping 1227 matching lines @@
 
     std::deque<ConstrainedWindowMac*>& windows = constrainedWindows_[tab];
     std::deque<ConstrainedWindowMac*>::iterator it =
         find(windows.begin(), windows.end(), window);
     if (it == windows.end())
       constrainedWindows_[tab].push_back(window);
 
     if (constrainedWindows_[tab].size() == 1) {
       [controller setTab:tab isDraggable:NO];
       window->SetVisible();
-      window->delegate()->RunSheet([self sheetController], tabContentsView);
+
+      SEL frameSelector = nil;
+      SEL positionSelector = nil;
+// TODO(viettrungluu): I need to provide appropriate selectors and stuff.
+#if 0
+      if (window->delegate()->GetModalityLevel() >=
+              ConstrainedWindow::kModalForTab) {
+        frameSelector = @selector(frameWithBars);
+        positionSelector = @selector(positionSheetBelowToolbar:usingRect:);
+      }
+#endif
+      window->delegate()->RunSheet([self sheetController],
+                                   tabContentsView,
+                                   frameSelector,
+                                   positionSelector);
       return YES;
     }
   }
   return NO;
 }
 
 - (void)removeConstrainedWindow:(ConstrainedWindowMac*)window {
   NSView* tabContentsView =
       [[window->owner()->GetNativeView() superview] superview];
 
@@ skipping 25 matching lines @@
       // Show next sheet
       NSWindowController* controller = [[tab window] windowController];
       DCHECK([controller isKindOfClass:[BrowserWindowController class]]);
       windows.front()->Realize(
           static_cast<BrowserWindowController*>(controller));
     }
   }
 }
 
 @end