From 9692027facae07a93dd529eb9c1f9b16a5a90b46 Mon Sep 17 00:00:00 2001
From: Simon Schampijer <simon@laptop.org>
Date: Mon, 15 Oct 2012 10:40:46 +0000
Subject: Cursor tracker: only display the cursor in mouse/trackpad mode, SL #4021

We only display the cursor in mouse/trackpad mode, hence when
a mouse motion is detected or a button press event. When a
touch begin event is received the cursor will be hidden.

We only track the incoming events when a touchscreen device
is available.

Signed-off-by: Simon Schampijer <simon@laptop.org>
Acked-by: Manuel Quiñones <manuq@laptop.org>
---
(limited to 'src/jarabe/view/cursortracker.py')

diff --git a/src/jarabe/view/cursortracker.py b/src/jarabe/view/cursortracker.py
new file mode 100644
index 0000000..e14ca48
--- /dev/null
+++ b/src/jarabe/view/cursortracker.py
@@ -0,0 +1,54 @@
+# Copyright (C) 2012 One Laptop Per Child
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+import logging
+
+from gi.repository import Gdk
+
+from gi.repository import SugarExt
+
+_instance = None
+
+
+def setup():
+    '''Cursor tracker: only display the cursor in mouse/trackpad mode
+
+    We only display the cursor in mouse/trackpad mode, hence when
+    a mouse motion is detected or a button press event. When a
+    touch begin event is received the cursor will be hidden.
+
+    We only track the incoming events when a touchscreen device
+    is available.
+
+    '''
+    global _instance
+
+    if _instance:
+        del _instance
+
+    display = Gdk.Display.get_default()
+    device_manager = display.get_device_manager()
+    devices = device_manager.list_devices(Gdk.DeviceType.SLAVE)
+    for device in devices:
+        if device.get_source() == Gdk.InputSource.TOUCHSCREEN:
+            logging.debug('Cursor Tracker: found touchscreen, ' \
+                              'will track input.')
+            _instance = SugarExt.CursorTracker()
+            break
+
+    if not _instance:
+        logging.debug('Cursor Tracker: no touchscreen available, ' \
+                          'will not track input.')
--
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