add pause_on_minimize config option

Author: dessant

kivy/__init__.py

@@ -277,6 +277,9 @@ def kivy_usage():
     level = LOG_LEVELS.get(Config.get('kivy', 'log_level'))
     Logger.setLevel(level=level)
 
+    if Config.getboolean('kivy', 'desktop'):
+        Config.set('kivy', 'pause_on_minimize', '0')
+
     # Can be overrided in command line
     if 'KIVY_UNITTEST' not in environ and 'KIVY_PACKAGING' not in environ:
         # save sys argv, otherwize, gstreamer use it and display help..

kivy/config.py

@@ -52,6 +52,10 @@
     `exit_on_escape`: int, 0 or 1
         Enables exiting kivy when escape is pressed.
         0 is disabled, 1 is enabled.
+    `pause_on_minimize`: int, 0 or 1
+        If set to `1`, the main loop is paused and the `on_pause` event
+        is dispatched when the window is minimized. Defaults to `0`
+        on desktop and `1` on mobile.
     `keyboard_layout`: string
         Identifier of the layout to use.
     `keyboard_mode`: string
@@ -229,6 +233,7 @@
     `borderless` has been added to the graphics section.
     The `fake` option of `fullscreen` in the graphics section has been
     deprecated, use the `borderless` option instead.
+    `pause_on_minimize` has been added to the kivy section.
 
 .. versionchanged:: 1.8.0
     `systemanddock` and `systemandmulti` has been added as possible values for
@@ -269,7 +274,7 @@
 _is_rpi = exists('/opt/vc/include/bcm_host.h')
 
 # Version number of current configuration format
-KIVY_CONFIG_VERSION = 11
+KIVY_CONFIG_VERSION = 12
 
 Config = None
 '''Kivy configuration object. Its :attr:`~kivy.config.ConfigParser.name` is
@@ -731,11 +736,14 @@ def name(self, value):
 
         elif version == 9:
             Config.setdefault('kivy', 'exit_on_escape', '1')
-            
+
         elif version == 10:
             Config.set('graphics', 'fullscreen', '0')
             Config.setdefault('graphics', 'borderless', '0')
 
+        elif version == 11:
+            Config.setdefault('kivy', 'pause_on_minimize', '1')
+
         #elif version == 1:
         #   # add here the command for upgrading from configuration 0 to 1
         #

kivy/core/window/window_sdl2.py

@@ -314,7 +314,8 @@ def _mainloop(self):
                 self.canvas.ask_update()
 
             elif action == 'windowminimized':
-                self.do_pause()
+                if Config.getboolean('kivy', 'pause_on_minimize'):
+                    self.do_pause()
 
             elif action == 'joyaxismotion':
                 stickid, axisid, value = args