Add ManagePasswordsBubbleCocoa and unit tests.

chrome/browser/ui/cocoa/passwords/manage_passwords_bubble_cocoa.mm

+// Copyright 2014 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/passwords/manage_passwords_bubble_cocoa.h"
+
+#include "base/mac/scoped_block.h"
+#include "chrome/browser/ui/browser_dialogs.h"
+#include "chrome/browser/ui/browser_finder.h"
+#import "chrome/browser/ui/cocoa/passwords/manage_passwords_bubble_controller.h"
+#include "chrome/browser/ui/passwords/manage_passwords_ui_controller.h"
+#include "content/public/browser/web_contents.h"
+
+typedef void (^Callback)(void);
+
+@interface ManagePasswordsBubbleCocoaNotificationBridge : NSObject {
+  base::mac::ScopedBlock<Callback> callback_;
+}
+- (id)initWithCallback:(Callback)callback;
+- (void)onClose;
+@end
+
+@implementation ManagePasswordsBubbleCocoaNotificationBridge
+- (id)initWithCallback:(Callback)callback {
+  if ((self = [super init])) {
+    callback_.reset(callback, base::scoped_policy::RETAIN);
+  }
+  return self;
+}
+- (void)onClose {
+  callback_.get()();
+}
+@end
+
+// static
+ManagePasswordsBubbleCocoa* ManagePasswordsBubbleCocoa::bubble_ = NULL;
+
+ManagePasswordsBubbleCocoa::ManagePasswordsBubbleCocoa(
+    content::WebContents* webContents,
+    DisplayReason displayReason)
+    : ManagePasswordsBubble(webContents, displayReason),
+      closing_(false),
+      controller_(nil),
+      webContents_(webContents),
+      bridge_(nil) {
+}
+
+ManagePasswordsBubbleCocoa::~ManagePasswordsBubbleCocoa() {
+  [[NSNotificationCenter defaultCenter] removeObserver:bridge_];
+  // Clear the global instance pointer.
+  bubble_ = NULL;
+}
+
+void ManagePasswordsBubbleCocoa::Show() {
+  // Create and show the bubble.
+  NSView* browserView = webContents_->GetNativeView();
+  DCHECK(browserView);
+  NSWindow* browserWindow = [browserView window];
+  DCHECK(browserWindow);
+  controller_ = [[ManagePasswordsBubbleController alloc]
+      initWithParentWindow:browserWindow
+                     model:model()];
+  [controller_ showWindow:nil];
+
+  // Listen for close notification to perform cleanup: the window isn't
+  // necessarily closed by calling Close(). Use a block instead of directly
+  // calling OnClose from the bridge so that we don't need to expose OnClose
+  // in the public API of ManagePasswordsBubbleCocoa.
+  bridge_.reset([[ManagePasswordsBubbleCocoaNotificationBridge alloc]
+      initWithCallback:^{
+          OnClose();
+      }]);
+  [[NSNotificationCenter defaultCenter]
+      addObserver:bridge_
+         selector:@selector(onClose)
+             name:NSWindowWillCloseNotification
+           object:[controller_ window]];
+}
+
+void ManagePasswordsBubbleCocoa::Close() {
+  if (!closing_) {
+    closing_ = true;
+    [controller_ close];
+  }
+}
+
+void ManagePasswordsBubbleCocoa::OnClose() {
+  delete this;
+}
+
+// static
+void ManagePasswordsBubbleCocoa::ShowBubble(content::WebContents* webContents,
+                                            DisplayReason displayReason) {
+  if (bubble_)
+    return;
+  bubble_ = new ManagePasswordsBubbleCocoa(webContents, displayReason);
+  bubble_->Show();
+}