Infobar system refactor.

chrome/browser/ui/cocoa/infobars/translate_infobar_base.mm

 // Copyright (c) 2012 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/infobars/translate_infobar_base.h"
 
 #include "base/logging.h"
 #include "base/strings/sys_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/translate/translate_infobar_delegate.h"
 #import "chrome/browser/ui/cocoa/hover_close_button.h"
 #include "chrome/browser/ui/cocoa/infobars/after_translate_infobar_controller.h"
 #import "chrome/browser/ui/cocoa/infobars/before_translate_infobar_controller.h"
 #include "chrome/browser/ui/cocoa/infobars/infobar_cocoa.h"
 #import "chrome/browser/ui/cocoa/infobars/infobar_container_controller.h"
 #import "chrome/browser/ui/cocoa/infobars/infobar_controller.h"
 #import "chrome/browser/ui/cocoa/infobars/infobar_gradient_view.h"
 #import "chrome/browser/ui/cocoa/infobars/infobar_utilities.h"
 #include "chrome/browser/ui/cocoa/infobars/translate_message_infobar_controller.h"
 #include "grit/generated_resources.h"
 #include "third_party/GTM/AppKit/GTMUILocalizerAndLayoutTweaker.h"
 #include "ui/base/l10n/l10n_util.h"
 
 using InfoBarUtilities::MoveControl;
 using InfoBarUtilities::VerticallyCenterView;
 using InfoBarUtilities::VerifyControlOrderAndSpacing;
 using InfoBarUtilities::CreateLabel;
 using InfoBarUtilities::AddMenuItem;
 
-// TranslateInfoBarDelegate views specific method:
-InfoBar* TranslateInfoBarDelegate::CreateInfoBar(InfoBarService* owner) {
-  scoped_ptr<InfoBarCocoa> infobar(new InfoBarCocoa(owner, this));
+// static
+scoped_ptr<InfoBar> TranslateInfoBarDelegate::CreateInfoBar(
+    scoped_ptr<TranslateInfoBarDelegate> delegate) {
+  scoped_ptr<InfoBarCocoa> infobar(
+      new InfoBarCocoa(delegate.PassAs<InfoBarDelegate>()));
   base::scoped_nsobject<TranslateInfoBarControllerBase> infobar_controller;
-  switch (infobar_type_) {
+  switch (infobar->delegate()->AsTranslateInfoBarDelegate()->infobar_type()) {
     case BEFORE_TRANSLATE:
       infobar_controller.reset([[BeforeTranslateInfobarController alloc]
           initWithInfoBar:infobar.get()]);
       break;
     case AFTER_TRANSLATE:
       infobar_controller.reset([[AfterTranslateInfobarController alloc]
           initWithInfoBar:infobar.get()]);
       break;
     case TRANSLATING:
     case TRANSLATION_ERROR:
       infobar_controller.reset([[TranslateMessageInfobarController alloc]
           initWithInfoBar:infobar.get()]);
       break;
     default:
       NOTREACHED();
   }
   infobar->set_controller(infobar_controller);
-  return infobar.release();
+  return infobar.PassAs<InfoBar>();
 }
 
 @implementation TranslateInfoBarControllerBase (FrameChangeObserver)
 
 // Triggered when the frame changes.  This will figure out what size and
 // visibility the options popup should be.
 - (void)didChangeFrame:(NSNotification*)notification {
   [self adjustOptionsButtonSizeAndVisibilityForView:
       [[self visibleControls] lastObject]];
 }
@@ skipping 289 matching lines @@
   [infoBarView_ setPostsFrameChangedNotifications:YES];
   [[NSNotificationCenter defaultCenter]
       addObserver:self
          selector:@selector(didChangeFrame:)
              name:NSViewFrameDidChangeNotification
            object:infoBarView_];
   // Show and place GUI elements.
   [self updateState];
 }
 
+- (void)infobarWillHide {
+  [[fromLanguagePopUp_ menu] cancelTracking];
+  [[toLanguagePopUp_ menu] cancelTracking];
+  [[optionsPopUp_ menu] cancelTracking];
+  [super infobarWillHide];
+}
+
 - (void)infobarWillClose {
   [self disablePopUpMenu:[fromLanguagePopUp_ menu]];
   [self disablePopUpMenu:[toLanguagePopUp_ menu]];
   [self disablePopUpMenu:[optionsPopUp_ menu]];
-  // [super infobarWillClose] clears the owner field which is relied on by the
-  // notification handler, so remove the handler first.
   [[NSNotificationCenter defaultCenter] removeObserver:self];
   [super infobarWillClose];
 }
 
 - (void)adjustOptionsButtonSizeAndVisibilityForView:(NSView*)lastView {
   [optionsPopUp_ setHidden:NO];
   [self rebuildOptionsMenu:NO];
   [[optionsPopUp_ cell] setArrowPosition:NSPopUpArrowAtBottom];
   [optionsPopUp_ sizeToFit];
 
@@ skipping 73 matching lines @@
     // Danger Will Robinson! : This call can release the infobar (e.g. invoking
     // "About Translate" can open a new tab).
     // Do not access member variables after this line!
     optionsMenuModel_->ExecuteCommand(cmd, 0);
   } else {
     NOTREACHED();
   }
 }
 
 - (void)dealloc {
-  // Perhaps this was removed as an observer in -infobarWillClose, but there's
-  // no guarantee that that was the case.
-  [[NSNotificationCenter defaultCenter] removeObserver:self];
   [showOriginalButton_ setTarget:nil];
   [translateMessageButton_ setTarget:nil];
   [super dealloc];
 }
 
 #pragma mark NSMenuDelegate
 
 // Invoked by virtue of us being set as the delegate for the options menu.
 - (void)menuNeedsUpdate:(NSMenu *)menu {
   [self adjustOptionsButtonSizeAndVisibilityForView:
@@ skipping 68 matching lines @@
           [[control description] UTF8String] <<[title UTF8String];
       return false;
     }
     previousControl = control;
   }
 
   return true;
 }
 
 @end // TranslateInfoBarControllerBase (TestingAPI)