mac: Add "double-clicked" event for Tray.

atom/browser/api/atom_api_tray.cc

@@ -36,6 +36,10 @@ void Tray::OnClicked() {
   Emit("clicked");
 }
 
+void Tray::OnDoubleClicked() {
+  Emit("double-clicked");
+}
+
 void Tray::SetImage(const gfx::ImageSkia& image) {
   tray_icon_->SetImage(image);
 }

atom/browser/api/atom_api_tray.h

@@ -37,6 +37,7 @@ class Tray : public mate::EventEmitter,
 
   // TrayIcon implementations:
   virtual void OnClicked() OVERRIDE;
+  virtual void OnDoubleClicked() OVERRIDE;
 
   void SetImage(const gfx::ImageSkia& image);
   void SetPressedImage(const gfx::ImageSkia& image);

atom/browser/ui/tray_icon.cc

@@ -22,4 +22,8 @@ void TrayIcon::NotifyClicked() {
   FOR_EACH_OBSERVER(TrayIconObserver, observers_, OnClicked());
 }
 
+void TrayIcon::NotifyDoubleClicked() {
+  FOR_EACH_OBSERVER(TrayIconObserver, observers_, OnDoubleClicked());
+}
+
 }  // namespace atom

atom/browser/ui/tray_icon.h

@@ -45,6 +45,7 @@ class TrayIcon {
   void AddObserver(TrayIconObserver* obs) { observers_.AddObserver(obs); }
   void RemoveObserver(TrayIconObserver* obs) { observers_.RemoveObserver(obs); }
   void NotifyClicked();
+  void NotifyDoubleClicked();
 
  protected:
   TrayIcon();

atom/browser/ui/tray_icon_cocoa.mm

@@ -13,6 +13,7 @@
 }
 - (id)initWithIcon:(atom::TrayIconCocoa*)icon;
 - (void)handleClick:(id)sender;
+- (void)handleDoubleClick:(id)sender;
 
 @end // @interface StatusItemController
 
@@ -24,10 +25,13 @@
 }
 
 - (void)handleClick:(id)sender {
-  DCHECK(trayIcon_);
   trayIcon_->NotifyClicked();
 }
 
+- (void)handleDoubleClick:(id)sender {
+  trayIcon_->NotifyDoubleClicked();
+}
+
 @end
 
 namespace atom {
@@ -40,6 +44,7 @@ TrayIconCocoa::TrayIconCocoa() {
   [item_ setEnabled:YES];
   [item_ setTarget:controller_];
   [item_ setAction:@selector(handleClick:)];
+  [item_ setDoubleAction:@selector(handleDoubleClick:)];
   [item_ setHighlightMode:YES];
 }
 

atom/browser/ui/tray_icon_observer.h

@@ -10,6 +10,7 @@ namespace atom {
 class TrayIconObserver {
  public:
   virtual void OnClicked() {}
+  virtual void OnDoubleClicked() {}
 
  protected:
   virtual ~TrayIconObserver() {}