From b8e5b6d00b40cfe94efd0bb4fce7a74b971abb0f Mon Sep 17 00:00:00 2001
From: Filipp Lepalaan <filipp@mac.com>
Date: Fri, 14 Oct 2016 10:44:28 +0300
Subject: Added screensavers

---
 README.md                |  3 ++-
 machammer/functions.py   | 27 +++++++++++++++++++++++++--
 machammer/processes.py   | 14 ++++++++++++++
 machammer/screensaver.py | 18 ++++++++++++++++++
 tests.py                 | 15 ++++++++++++++-
 5 files changed, 73 insertions(+), 4 deletions(-)
 create mode 100755 machammer/processes.py
 create mode 100644 machammer/screensaver.py

diff --git a/README.md b/README.md
index 58ad589..301d009 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,8 @@ myprinter = ('LaserWriter 8500', 'LaserWriter8500.ppd', 'lw.example.com',)
 printers.add_printer(myprinter)
 
 # Install Java. mount_and_install takes 2 arguments - the path to the disk image and the path to installation package on the mounted volume
-mh.mount_and_install(os.path.join(APP_ROOT, 'jre-8u101-macosx-x64.dmg'), 'Java 8 Update 101.app/Contents/Resources/JavaAppletPlugin.pkg')
+mh.mount_and_install(os.path.join(APP_ROOT, 'jre-8u101-macosx-x64.dmg'), 
+                     'Java 8 Update 101.app/Contents/Resources/JavaAppletPlugin.pkg')
 
 # Install Microsoft Office. mount_image returns the path to the new mountpoint
 p = mh.mount_image('/Volumes/MyShare/Installation/Office2016.dmg')
diff --git a/machammer/functions.py b/machammer/functions.py
index d797b32..0a7b853 100644
--- a/machammer/functions.py
+++ b/machammer/functions.py
@@ -13,6 +13,16 @@ from system_profiler import SystemProfile
 SERVICEDIR = '/Library/Services'
 
 
+def get_plist(path):
+    """Return plist dict regardless of format.
+
+    """
+    plist = subprocess.check_output(['/usr/bin/plutil',
+                                     '-convert', 'xml1',
+                                     path, '-o', '-'])
+    return plistlib.readPlistFromString(plist)
+
+
 def call(*args):
     """Shorthand for subprocess.call.
 
@@ -21,6 +31,16 @@ def call(*args):
     subprocess.call(args)
 
 
+def check_output(*args):
+    """Shortcut for subprocess.check_output."""
+    result = subprocess.check_output(args).strip()
+
+    if len(result) < 1:
+        result = None
+
+    return result
+
+
 def rmdir(path):
     """Shortcut for deleting a directory."""
     call('rm', '-r', path)
@@ -62,11 +82,14 @@ def exec_jar(path, user):
 
 
 def osascript(s):
-    subprocess.call(['/usr/bin/osascript', '-e', s])
+    try:
+        return check_output('/usr/bin/osascript', '-e', s)
+    except Exception as e:
+        raise Exception('The AppleScript returned an error: %s' % e)
 
 
 def tell_app(app, s):
-    osascript('tell application "%s" to %s' % (app, s))
+    return osascript('tell application "%s" to %s' % (app, s))
 
 
 def quit_app(app):
diff --git a/machammer/processes.py b/machammer/processes.py
new file mode 100755
index 0000000..71c2936
--- /dev/null
+++ b/machammer/processes.py
@@ -0,0 +1,14 @@
+from .functions import osascript
+
+
+def pidof(name):
+    pass
+
+def is_running(name):
+    pass
+
+def quit(name):
+    pass
+
+def kill(name):
+    pass
diff --git a/machammer/screensaver.py b/machammer/screensaver.py
new file mode 100644
index 0000000..0910214
--- /dev/null
+++ b/machammer/screensaver.py
@@ -0,0 +1,18 @@
+from .functions import tell_app
+
+
+
+def get():
+    return tell_app('System Events', 'get name of current screen saver')
+
+
+def set(name):
+    return tell_app('System Events', 'set current screen saver to (get screen saver named "%s")' % name)
+
+
+def start():
+    return tell_app('System Events', 'start current screen saver')
+
+
+def stop():
+    return tell_app('System Events', 'stop current screen saver')
diff --git a/tests.py b/tests.py
index fcce82a..bec8125 100755
--- a/tests.py
+++ b/tests.py
@@ -6,7 +6,7 @@ import subprocess
 from unittest import main, skip, TestCase
 
 import machammer.functions as mh
-from machammer import system_profiler
+from machammer import system_profiler, screensaver
 
 
 class SystemProfilerTestCase(TestCase):
@@ -73,6 +73,19 @@ class FunctionsTestCase(TestCase):
         self.assertEquals(p, '/Volumes/Adobe Flash Player Installer')
 
 
+class ScreenSaverTestCase(TestCase):
+    def test_set_invalid(self):
+        with self.assertRaises(Exception):
+            screensaver.set('Blalala')
+
+    def test_set_flurry(self):
+        self.assertEquals(screensaver.set('Flurry'), None)
+
+
+    def test_get(self):
+        self.assertEquals(screensaver.get(), 'Flurry')
+
+
 if __name__ == '__main__':
     logging.basicConfig(level=logging.DEBUG)
     main()
-- 
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