Content shell: Javascript dialogs, first pass, just Mac for now.

chrome/browser/ui/cocoa/js_modal_dialog_cocoa.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.
 
 #include "chrome/browser/ui/cocoa/js_modal_dialog_cocoa.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/logging.h"
 #import "base/mac/cocoa_protocols.h"
 #include "base/sys_string_conversions.h"
 #import "chrome/browser/chrome_browser_application_mac.h"
 #include "chrome/browser/ui/app_modal_dialogs/js_modal_dialog.h"
 #include "grit/generated_resources.h"
 #include "grit/ui_strings.h"
 #include "ui/base/l10n/l10n_util_mac.h"
 #include "ui/base/ui_base_types.h"
 
 // Helper object that receives the notification that the dialog/sheet is
 // going away. Is responsible for cleaning itself up.
 @interface JavaScriptAppModalDialogHelper : NSObject<NSAlertDelegate> {
  @private
-  NSAlert* alert_;
+  scoped_nsobject<NSAlert> alert_;
   NSTextField* textField_;  // WEAK; owned by alert_
 }
 
 - (NSAlert*)alert;
 - (NSTextField*)textField;
-- (void)alertDidEnd:(NSAlert *)alert
+- (void)alertDidEnd:(NSAlert*)alert
          returnCode:(int)returnCode
         contextInfo:(void*)contextInfo;
 
 @end
 
 @implementation JavaScriptAppModalDialogHelper
 
 - (NSAlert*)alert {
-  alert_ = [[NSAlert alloc] init];
+  alert_.reset([[NSAlert alloc] init]);
   return alert_;
 }
 
 - (NSTextField*)textField {
   textField_ = [[NSTextField alloc] initWithFrame:NSMakeRect(0, 0, 300, 22)];
   [[textField_ cell] setLineBreakMode:NSLineBreakByTruncatingTail];
   [alert_ setAccessoryView:textField_];
   [textField_ release];
 
   return textField_;
 }
 
-- (void)dealloc {
-  [alert_ release];
-  [super dealloc];
-}
-
 // |contextInfo| is the JSModalDialogCocoa that owns us.
 - (void)alertDidEnd:(NSAlert*)alert
          returnCode:(int)returnCode
         contextInfo:(void*)contextInfo {
   scoped_ptr<JSModalDialogCocoa> native_dialog(
       reinterpret_cast<JSModalDialogCocoa*>(contextInfo));
   string16 input;
   if (textField_)
     input = base::SysNSStringToUTF16([textField_ stringValue]);
   bool shouldSuppress = false;
@@ skipping 17 matching lines @@
       // to be done.  It won't call back to the javascript since the
       // JavaScriptAppModalDialog knows that the TabContents was destroyed.
       native_dialog->dialog()->OnCancel(shouldSuppress);
       break;
     }
     default:  {
       NOTREACHED();
     }
   }
 }
+
 @end
 
 ////////////////////////////////////////////////////////////////////////////////
 // JSModalDialogCocoa, public:
 
 JSModalDialogCocoa::JSModalDialogCocoa(JavaScriptAppModalDialog* dialog)
     : dialog_(dialog),
       helper_(NULL) {
   // Determine the names of the dialog buttons based on the flags. "Default"
   // is the OK button. "Other" is the cancel button. We don't use the
@@ skipping 114 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // NativeAppModalDialog, public:
 
 // static
 NativeAppModalDialog* NativeAppModalDialog::CreateNativeJavaScriptPrompt(
     JavaScriptAppModalDialog* dialog,
     gfx::NativeWindow parent_window) {
   return new JSModalDialogCocoa(dialog);
 }