Refactor the notification code

brightray/browser/mac/cocoa_notification.h

@@ -0,0 +1,59 @@
+// Copyright (c) 2015 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#ifndef BROWSER_MAC_COCOA_NOTIFICATION_H_
+#define BROWSER_MAC_COCOA_NOTIFICATION_H_
+
+#include <set>
+
+#import <Foundation/Foundation.h>
+
+#include "base/mac/scoped_nsobject.h"
+#include "base/memory/weak_ptr.h"
+#include "base/strings/string16.h"
+#include "content/public/browser/desktop_notification_delegate.h"
+
+@class NotificationDelegate;
+class SkBitmap;
+
+namespace brightray {
+
+class CocoaNotification {
+ public:
+  static CocoaNotification* FromNSNotification(
+      NSUserNotification* notification);
+
+  CocoaNotification(
+      scoped_ptr<content::DesktopNotificationDelegate> delegate);
+  ~CocoaNotification();
+
+  void ShowNotification(const base::string16& title,
+                        const base::string16& msg,
+                        const SkBitmap& icon);
+  void DismissNotification();
+
+  void NotifyDisplayed();
+  void NotifyClick();
+
+  base::WeakPtr<CocoaNotification> GetWeakPtr() {
+    return weak_factory_.GetWeakPtr();
+  }
+
+ private:
+  static void Cleanup();
+
+  scoped_ptr<content::DesktopNotificationDelegate> delegate_;
+  base::scoped_nsobject<NSUserNotification> notification_;
+
+  base::WeakPtrFactory<CocoaNotification> weak_factory_;
+
+  static base::scoped_nsobject<NotificationDelegate> notification_delegate_;
+  static std::set<CocoaNotification*> notifications_;
+
+  DISALLOW_COPY_AND_ASSIGN(CocoaNotification);
+};
+
+}  // namespace brightray
+
+#endif  // BROWSER_MAC_COCOA_NOTIFICATION_H_

brightray/browser/mac/cocoa_notification.mm

@@ -0,0 +1,92 @@
+// Copyright (c) 2015 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#include "browser/mac/cocoa_notification.h"
+
+#include "base/at_exit.h"
+#include "base/bind.h"
+#include "base/mac/mac_util.h"
+#include "base/stl_util.h"
+#include "base/strings/sys_string_conversions.h"
+#include "browser/mac/notification_delegate.h"
+#include "skia/ext/skia_utils_mac.h"
+
+namespace brightray {
+
+// static
+base::scoped_nsobject<NotificationDelegate>
+CocoaNotification::notification_delegate_;
+
+// static
+std::set<CocoaNotification*> CocoaNotification::notifications_;
+
+// static
+CocoaNotification* CocoaNotification::FromNSNotification(
+    NSUserNotification* ns_notification) {
+  for (CocoaNotification* notification : notifications_) {
+    if ([notification->notification_ isEqual:ns_notification])
+      return notification;
+  }
+  return nullptr;
+}
+
+// static
+void CocoaNotification::Cleanup() {
+  NSUserNotificationCenter.defaultUserNotificationCenter.delegate = nil;
+  notification_delegate_.reset();
+  STLDeleteElements(&notifications_);
+}
+
+CocoaNotification::CocoaNotification(
+    scoped_ptr<content::DesktopNotificationDelegate> delegate)
+    : delegate_(delegate.Pass()),
+      weak_factory_(this) {
+  if (!notification_delegate_) {
+    notification_delegate_.reset([[NotificationDelegate alloc] init]);
+    NSUserNotificationCenter.defaultUserNotificationCenter.delegate =
+        notification_delegate_;
+    base::AtExitManager::RegisterTask(base::Bind(Cleanup));
+  }
+
+  notifications_.insert(this);
+}
+
+CocoaNotification::~CocoaNotification() {
+  [NSUserNotificationCenter.defaultUserNotificationCenter
+      removeDeliveredNotification:notification_];
+  notifications_.erase(this);
+}
+
+void CocoaNotification::ShowNotification(const base::string16& title,
+                                         const base::string16& body,
+                                         const SkBitmap& icon) {
+  notification_.reset([[NSUserNotification alloc] init]);
+  [notification_ setTitle:base::SysUTF16ToNSString(title)];
+  [notification_ setInformativeText:base::SysUTF16ToNSString(body)];
+
+  if ([notification_ respondsToSelector:@selector(setContentImage:)] &&
+      !icon.drawsNothing()) {
+    NSImage* image = gfx::SkBitmapToNSImageWithColorSpace(
+        icon, base::mac::GetGenericRGBColorSpace());
+    [notification_ setContentImage:image];
+  }
+
+  [NSUserNotificationCenter.defaultUserNotificationCenter
+      deliverNotification:notification_];
+}
+
+void CocoaNotification::DismissNotification() {
+  delete this;
+}
+
+void CocoaNotification::NotifyDisplayed() {
+  delegate_->NotificationDisplayed();
+}
+
+void CocoaNotification::NotifyClick() {
+  delegate_->NotificationClick();
+  delete this;
+}
+
+}  // namespace brightray

brightray/browser/mac/notification_delegate.h

@@ -0,0 +1,14 @@
+// Copyright (c) 2015 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#ifndef BROWSER_MAC_NOTIFICATION_DELEGATE_H_
+#define BROWSER_MAC_NOTIFICATION_DELEGATE_H_
+
+#import <Foundation/Foundation.h>
+
+@interface NotificationDelegate : NSObject<NSUserNotificationCenterDelegate> {
+}
+@end
+
+#endif  // BROWSER_MAC_NOTIFICATION_DELEGATE_H_

brightray/browser/mac/notification_delegate.mm

@@ -0,0 +1,31 @@
+// Copyright (c) 2015 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#include "browser/mac/notification_delegate.h"
+
+#include "browser/mac/cocoa_notification.h"
+
+@implementation NotificationDelegate
+
+- (void)userNotificationCenter:(NSUserNotificationCenter*)center
+        didDeliverNotification:(NSUserNotification*)notif {
+  auto notification = brightray::CocoaNotification::FromNSNotification(notif);
+  if (notification)
+    notification->NotifyDisplayed();
+}
+
+- (void)userNotificationCenter:(NSUserNotificationCenter*)center
+       didActivateNotification:(NSUserNotification *)notif {
+  auto notification = brightray::CocoaNotification::FromNSNotification(notif);
+  if (notification)
+    notification->NotifyClick();
+}
+
+- (BOOL)userNotificationCenter:(NSUserNotificationCenter*)center
+     shouldPresentNotification:(NSUserNotification*)notification {
+  // Display notifications even if the app is active.
+  return YES;
+}
+
+@end

brightray/browser/mac/notification_presenter_mac.h

@@ -0,0 +1,31 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright (c) 2013 Adam Roben <adam@roben.org>. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE-CHROMIUM file.
+
+#ifndef BRIGHTRAY_BROWSER_NOTIFICATION_PRESENTER_MAC_H_
+#define BRIGHTRAY_BROWSER_NOTIFICATION_PRESENTER_MAC_H_
+
+#include "browser/notification_presenter.h"
+
+namespace brightray {
+
+class NotificationPresenterMac : public NotificationPresenter {
+ public:
+  NotificationPresenterMac();
+  ~NotificationPresenterMac();
+
+  // NotificationPresenter:
+  void ShowNotification(
+      const content::PlatformNotificationData&,
+      const SkBitmap& icon,
+      scoped_ptr<content::DesktopNotificationDelegate> delegate,
+      base::Closure* cancel_callback) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(NotificationPresenterMac);
+};
+
+}  // namespace brightray
+
+#endif

brightray/browser/mac/notification_presenter_mac.mm

@@ -0,0 +1,48 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright (c) 2013 Adam Roben <adam@roben.org>. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE-CHROMIUM file.
+
+#import "browser/mac/notification_presenter_mac.h"
+
+#include "base/bind.h"
+#include "browser/mac/cocoa_notification.h"
+#include "content/public/common/platform_notification_data.h"
+
+namespace brightray {
+
+namespace {
+
+void RemoveNotification(base::WeakPtr<CocoaNotification> notification) {
+  if (notification)
+    notification->DismissNotification();
+}
+
+}  // namespace
+
+NotificationPresenter* NotificationPresenter::Create() {
+  return new NotificationPresenterMac;
+}
+
+NotificationPresenterMac::NotificationPresenterMac() {
+}
+
+NotificationPresenterMac::~NotificationPresenterMac() {
+}
+
+void NotificationPresenterMac::ShowNotification(
+    const content::PlatformNotificationData& data,
+    const SkBitmap& icon,
+    scoped_ptr<content::DesktopNotificationDelegate> delegate,
+    base::Closure* cancel_callback) {
+  // This class manages itself.
+  auto notification = new CocoaNotification(delegate.Pass());
+  notification->ShowNotification(data.title, data.body, icon);
+
+  if (cancel_callback) {
+    *cancel_callback = base::Bind(
+        &RemoveNotification, notification->GetWeakPtr());
+  }
+}
+
+}  // namespace brightray