🏁 🍎 Add Silent Notification Support

* Implements support for silent notifications on Windows and OS X
 * Exposes bool `silent` to Linux notification presenters

brightray/browser/linux/libnotify_notification.cc

@@ -89,7 +89,8 @@ LibnotifyNotification::~LibnotifyNotification() {
 void LibnotifyNotification::Show(const base::string16& title,
                                  const base::string16& body,
                                  const GURL& icon_url,
-                                 const SkBitmap& icon) {
+                                 const SkBitmap& icon,
+                                 const bool silent) {
   notification_ = libnotify_loader_.notify_notification_new(
       base::UTF16ToUTF8(title).c_str(),
       base::UTF16ToUTF8(body).c_str(),

brightray/browser/linux/libnotify_notification.h

@@ -23,7 +23,8 @@ class LibnotifyNotification : public Notification {
   void Show(const base::string16& title,
             const base::string16& msg,
             const GURL& icon_url,
-            const SkBitmap& icon) override;
+            const SkBitmap& icon,
+            const bool silent) override;
   void Dismiss() override;
 
  private:

brightray/browser/mac/cocoa_notification.h

@@ -23,7 +23,8 @@ class CocoaNotification : public Notification {
   void Show(const base::string16& title,
             const base::string16& msg,
             const GURL& icon_url,
-            const SkBitmap& icon) override;
+            const SkBitmap& icon,
+            const bool silent) override;
   void Dismiss() override;
 
   void NotifyDisplayed();

brightray/browser/mac/cocoa_notification.mm

@@ -31,7 +31,8 @@ CocoaNotification::~CocoaNotification() {
 void CocoaNotification::Show(const base::string16& title,
                              const base::string16& body,
                              const GURL& icon_url,
-                             const SkBitmap& icon) {
+                             const SkBitmap& icon,
+                             const bool silent) {
   notification_.reset([[NSUserNotification alloc] init]);
   [notification_ setTitle:base::SysUTF16ToNSString(title)];
   [notification_ setInformativeText:base::SysUTF16ToNSString(body)];
@@ -43,6 +44,12 @@ void CocoaNotification::Show(const base::string16& title,
     [notification_ setContentImage:image];
   }
   
+  if (silent) {
+    [notification_ setSoundName:nil];
+  } else {
+    [notification_ setSoundName:NSUserNotificationDefaultSoundName];
+  }
+
   [NSUserNotificationCenter.defaultUserNotificationCenter
       deliverNotification:notification_];
 }

brightray/browser/notification.h

@@ -22,7 +22,8 @@ class Notification {
   virtual void Show(const base::string16& title,
                     const base::string16& msg,
                     const GURL& icon_url,
-                    const SkBitmap& icon) = 0;
+                    const SkBitmap& icon,
+                    const bool silent) = 0;
   // Closes the notification, this instance will be destroyed after the
   // notification gets closed.
   virtual void Dismiss() = 0;

brightray/browser/platform_notification_service.cc

@@ -57,7 +57,7 @@ void PlatformNotificationService::DisplayNotification(
   auto notification = presenter->CreateNotification(adapter.get());
   if (notification) {
     ignore_result(adapter.release());  // it will release itself automatically.
-    notification->Show(data.title, data.body, data.icon, icon);
+    notification->Show(data.title, data.body, data.icon, icon, data.silent);
     *cancel_callback = base::Bind(&RemoveNotification, notification);
   }
 }

brightray/browser/win/windows_toast_notification.cc

@@ -85,12 +85,13 @@ void WindowsToastNotification::Show(
     const base::string16& title,
     const base::string16& msg,
     const GURL& icon_url,
-    const SkBitmap& icon) {
+    const SkBitmap& icon,
+    const bool silent) {
   auto presenter_win = static_cast<NotificationPresenterWin*>(presenter());
   std::wstring icon_path = presenter_win->SaveIconToFilesystem(icon, icon_url);
 
   ComPtr<IXmlDocument> toast_xml;
-  if(FAILED(GetToastXml(toast_manager_.Get(), title, msg, icon_path, &toast_xml))) {
+  if(FAILED(GetToastXml(toast_manager_.Get(), title, msg, icon_path, silent, &toast_xml))) {
     NotificationFailed();
     return;
   }
@@ -152,6 +153,7 @@ bool WindowsToastNotification::GetToastXml(
     const std::wstring& title,
     const std::wstring& msg,
     const std::wstring& icon_path,
+    const bool silent,
     IXmlDocument** toast_xml) {
   ABI::Windows::UI::Notifications::ToastTemplateType template_type;
   if (title.empty() || msg.empty()) {
@@ -172,13 +174,82 @@ bool WindowsToastNotification::GetToastXml(
       return false;
   }
   
-  // Toast has image
+  // Configure the toast's notification sound
+  if (silent) {
+    if (FAILED(SetXmlAudioSilent(*toast_xml))) 
+      return false;
+  }
+
+  // Configure the toast's image
   if (!icon_path.empty())
     return SetXmlImage(*toast_xml, icon_path);
 
   return true;
 }
 
+bool WindowsToastNotification::SetXmlAudioSilent(
+  IXmlDocument* doc) {
+    ScopedHString tag(L"toast");
+  if (!tag.success())
+    return false;
+
+  ComPtr<IXmlNodeList> node_list;
+  if (FAILED(doc->GetElementsByTagName(tag, &node_list)))
+    return false;
+
+  ComPtr<IXmlNode> root;
+  if (FAILED(node_list->Item(0, &root)))
+    return false;
+  
+  ComPtr<IXmlElement> audio_element;
+  ScopedHString audio_str(L"audio");
+  if (FAILED(doc->CreateElement(audio_str, &audio_element)))
+    return false;
+  
+  ComPtr<IXmlNode> audio_node_tmp;
+  if (FAILED(audio_element.As(&audio_node_tmp)))
+    return false;
+  
+  // Append audio node to toast xml
+  ComPtr<IXmlNode> audio_node;
+  if (FAILED(root->AppendChild(audio_node_tmp.Get(), &audio_node)))
+    return false;
+  
+  // Create silent attribute
+  ComPtr<IXmlNamedNodeMap> attributes;
+  if (FAILED(audio_node->get_Attributes(&attributes)))
+    return false;
+    
+  ComPtr<IXmlAttribute> silent_attribute;
+  ScopedHString silent_str(L"silent");
+  if (FAILED(doc->CreateAttribute(silent_str, &silent_attribute)))
+    return false;
+  
+  ComPtr<IXmlNode> silent_attribute_node;
+  if (FAILED(silent_attribute.As(&silent_attribute_node)))
+    return false;
+  
+  // Set silent attribute to true
+  ScopedHString silent_value(L"true");
+  if (!silent_value.success())
+    return false;
+  
+  ComPtr<IXmlText> silent_text;
+  if (FAILED(doc->CreateTextNode(silent_value, &silent_text)))
+    return false;
+
+  ComPtr<IXmlNode> silent_node;
+  if (FAILED(silent_text.As(&silent_node)))
+    return false;
+    
+  ComPtr<IXmlNode> child_node;
+  if (FAILED(silent_attribute_node->AppendChild(silent_node.Get(), &child_node)))
+    return false;
+  
+  ComPtr<IXmlNode> silent_attribute_pnode;
+  return SUCCEEDED(attributes.Get()->SetNamedItem(silent_attribute_node.Get(), &silent_attribute_pnode));
+}
+
 bool WindowsToastNotification::SetXmlText(
     IXmlDocument* doc, const std::wstring& text) {
   ScopedHString tag;

brightray/browser/win/windows_toast_notification.h

@@ -42,7 +42,8 @@ class WindowsToastNotification : public Notification {
   void Show(const base::string16& title,
             const base::string16& msg,
             const GURL& icon_url,
-            const SkBitmap& icon) override;
+            const SkBitmap& icon,
+            const bool silent) override;
   void Dismiss() override;
 
  private:
@@ -56,7 +57,9 @@ class WindowsToastNotification : public Notification {
                    const std::wstring& title,
                    const std::wstring& msg,
                    const std::wstring& icon_path,
+                   const bool silent,
                    ABI::Windows::Data::Xml::Dom::IXmlDocument** toastXml);
+  bool SetXmlAudioSilent(ABI::Windows::Data::Xml::Dom::IXmlDocument* doc);
   bool SetXmlText(ABI::Windows::Data::Xml::Dom::IXmlDocument* doc,
                   const std::wstring& text);
   bool SetXmlText(ABI::Windows::Data::Xml::Dom::IXmlDocument* doc,