From 7a0a87a6f33d2227d6c396be057bb8a37d0c6e2b Mon Sep 17 00:00:00 2001
From: leethomas <leet944@gmail.com>
Date: Mon, 23 Jan 2017 20:36:09 -0800
Subject: [PATCH] implement relative window levels, closes #8153

---
 atom/browser/api/atom_api_window.cc |  4 +++-
 atom/browser/native_window.h        |  3 ++-
 atom/browser/native_window_mac.h    |  3 ++-
 atom/browser/native_window_mac.mm   | 11 +++++++++--
 atom/browser/native_window_views.cc |  3 ++-
 atom/browser/native_window_views.h  |  3 ++-
 6 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/atom/browser/api/atom_api_window.cc b/atom/browser/api/atom_api_window.cc
index efbd31b..44126cf 100644
--- a/atom/browser/api/atom_api_window.cc
+++ b/atom/browser/api/atom_api_window.cc
@@ -512,8 +512,10 @@ bool Window::IsClosable() {
 
 void Window::SetAlwaysOnTop(bool top, mate::Arguments* args) {
   std::string level = "floating";
+  int relativeLevel = 0;
   args->GetNext(&level);
-  window_->SetAlwaysOnTop(top, level);
+  args->GetNext(&relativeLevel);
+  window_->SetAlwaysOnTop(top, level, relativeLevel);
 }
 
 bool Window::IsAlwaysOnTop() {
diff --git a/atom/browser/native_window.h b/atom/browser/native_window.h
index 3422db0..05c06df 100644
--- a/atom/browser/native_window.h
+++ b/atom/browser/native_window.h
@@ -119,7 +119,8 @@ class NativeWindow : public base::SupportsUserData,
   virtual void SetClosable(bool closable) = 0;
   virtual bool IsClosable() = 0;
   virtual void SetAlwaysOnTop(bool top,
-                              const std::string& level = "floating") = 0;
+                              const std::string& level = "floating",
+                              int relativeLevel = 0) = 0;
   virtual bool IsAlwaysOnTop() = 0;
   virtual void Center() = 0;
   virtual void SetTitle(const std::string& title) = 0;
diff --git a/atom/browser/native_window_mac.h b/atom/browser/native_window_mac.h
index 759e51e..37786be 100644
--- a/atom/browser/native_window_mac.h
+++ b/atom/browser/native_window_mac.h
@@ -67,7 +67,8 @@ class NativeWindowMac : public NativeWindow,
   bool IsFullScreenable() override;
   void SetClosable(bool closable) override;
   bool IsClosable() override;
-  void SetAlwaysOnTop(bool top, const std::string& level) override;
+  void SetAlwaysOnTop(bool top, const std::string& level,
+                      int relativeLevel) override;
   bool IsAlwaysOnTop() override;
   void Center() override;
   void SetTitle(const std::string& title) override;
diff --git a/atom/browser/native_window_mac.mm b/atom/browser/native_window_mac.mm
index 037d0be..6962611 100644
--- a/atom/browser/native_window_mac.mm
+++ b/atom/browser/native_window_mac.mm
@@ -1056,8 +1056,9 @@ bool NativeWindowMac::IsClosable() {
   return [window_ styleMask] & NSClosableWindowMask;
 }
 
-void NativeWindowMac::SetAlwaysOnTop(bool top, const std::string& level) {
+void NativeWindowMac::SetAlwaysOnTop(bool top, const std::string& level, int relativeLevel) {
   int windowLevel = NSNormalWindowLevel;
+  
   if (top) {
     if (level == "floating") {
       windowLevel = NSFloatingWindowLevel;
@@ -1078,7 +1079,13 @@ void NativeWindowMac::SetAlwaysOnTop(bool top, const std::string& level) {
       windowLevel = NSDockWindowLevel;
     }
   }
-  [window_ setLevel:windowLevel];
+
+  NSInteger newLevel = windowLevel + relativeLevel;
+  if (newLevel >= 0 && newLevel < CGWindowLevelForKey(kCGMaximumWindowLevelKey)) {
+    [window_ setLevel:newLevel];
+  } else {
+    [window_ setLevel:windowLevel];
+  }
 }
 
 bool NativeWindowMac::IsAlwaysOnTop() {
diff --git a/atom/browser/native_window_views.cc b/atom/browser/native_window_views.cc
index d5dbbaa..e13608f 100644
--- a/atom/browser/native_window_views.cc
+++ b/atom/browser/native_window_views.cc
@@ -682,7 +682,8 @@ bool NativeWindowViews::IsClosable() {
 #endif
 }
 
-void NativeWindowViews::SetAlwaysOnTop(bool top, const std::string& level) {
+void NativeWindowViews::SetAlwaysOnTop(bool top, const std::string& level,
+                                       int relativeLevel) {
   window_->SetAlwaysOnTop(top);
 }
 
diff --git a/atom/browser/native_window_views.h b/atom/browser/native_window_views.h
index 110a4e9..f70904b 100644
--- a/atom/browser/native_window_views.h
+++ b/atom/browser/native_window_views.h
@@ -86,7 +86,8 @@ class NativeWindowViews : public NativeWindow,
   bool IsFullScreenable() override;
   void SetClosable(bool closable) override;
   bool IsClosable() override;
-  void SetAlwaysOnTop(bool top, const std::string& level) override;
+  void SetAlwaysOnTop(bool top, const std::string& level,
+                      int relativeLevel) override;
   bool IsAlwaysOnTop() override;
   void Center() override;
   void SetTitle(const std::string& title) override;
-- 
2.7.4