From 5704b41a45f78c72c6ff28dffc962c292eb40a0f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?=
 <marmarek@invisiblethingslab.com>
Date: Tue, 1 Apr 2014 01:10:35 +0200
Subject: [PATCH] hvm: seamless_gui_mode setting, including runtime change
 support (#810)

---
 core-modules/01QubesHVm.py | 29 +++++++++++++++++++++++++++++
 qvm-tools/qvm-prefs        | 23 +++++++++++++++++++++--
 2 files changed, 50 insertions(+), 2 deletions(-)

diff --git a/core-modules/01QubesHVm.py b/core-modules/01QubesHVm.py
index e892497c..bd760071 100644
--- a/core-modules/01QubesHVm.py
+++ b/core-modules/01QubesHVm.py
@@ -70,6 +70,9 @@ class QubesHVm(QubesVm):
         attrs['guiagent_installed'] = { 'default' : False,
             'attr': '_guiagent_installed',
             'save': lambda: str(self._guiagent_installed) }
+        attrs['seamless_gui_mode'] = { 'default': False,
+                              'attr': '_seamless_gui_mode',
+                              'save': lambda: str(self._seamless_gui_mode) }
         attrs['_start_guid_first']['func'] = lambda x: True
         attrs['services']['default'] = "{'meminfo-writer': False}"
 
@@ -140,6 +143,23 @@ class QubesHVm(QubesVm):
             print >>sys.stderr, "WARNING: When guiagent_installed set in template, it will be propagated to the VM"
         self._guiagent_installed = value
 
+    @property
+    def seamless_gui_mode(self):
+        if not self.guiagent_installed:
+            return False
+        return self._seamless_gui_mode
+
+    @seamless_gui_mode.setter
+    def seamless_gui_mode(self, value):
+        if self._seamless_gui_mode == value:
+            return
+        if not self.guiagent_installed and value:
+            raise ValueError("Seamless GUI mode requires GUI agent installed")
+
+        self._seamless_gui_mode = value
+        if self.is_running():
+            self.send_gui_mode()
+
     @property
     def drive(self):
         return self._drive
@@ -456,6 +476,15 @@ class QubesHVm(QubesVm):
                     print >> sys.stderr, "--> Waiting for user '%s' login..." % self.default_user
 
                 self.wait_for_session(notify_function=kwargs.get('notify_function', None))
+                self.send_gui_mode()
+
+    def send_gui_mode(self):
+        if self.seamless_gui_mode:
+            service_input = "SEAMLESS"
+        else:
+            service_input = "FULLSCREEN"
+
+        self.run_service("qubes.SetGuiMode", input=service_input)
 
     def create_xenstore_entries(self, xid = None):
         if dry_run:
diff --git a/qvm-tools/qvm-prefs b/qvm-tools/qvm-prefs
index c8df775d..c9e54455 100755
--- a/qvm-tools/qvm-prefs
+++ b/qvm-tools/qvm-prefs
@@ -86,11 +86,14 @@ def do_list(vm):
     if hasattr(vm, 'qrexec_installed'):
         print fmt.format("qrexec_installed", str(vm.qrexec_installed))
 
+    if hasattr(vm, 'qrexec_timeout'):
+        print fmt.format("qrexec_timeout", str(vm.qrexec_timeout))
+
     if hasattr(vm, 'guiagent_installed'):
         print fmt.format("guiagent_installed", str(vm.guiagent_installed))
 
-    if hasattr(vm, 'qrexec_timeout'):
-        print fmt.format("qrexec_timeout", str(vm.qrexec_timeout))
+    if hasattr(vm, 'seamless_gui_mode'):
+        print fmt.format("seamless_gui_mode", str(vm.seamless_gui_mode))
 
     if hasattr(vm, 'drive'):
         print fmt.format("drive", str(vm.drive))
@@ -370,6 +373,21 @@ def set_guiagent_installed(vms, vm, args):
     vm.guiagent_installed = bool(eval(args[0].capitalize()))
     return True
 
+def set_seamless_gui_mode(vms, vm, args):
+    if len(args) != 1:
+        print >> sys.stderr, "Missing value (true/false)!"
+        return False
+
+    if not args[0].lower() in ['true', 'false']:
+        print >> sys.stderr, "Invalid value, expected 'true' or 'false'"
+        return False
+
+    if args[0].lower() == 'true':
+        vm.seamless_gui_mode = True
+    else:
+        vm.seamless_gui_mode = False
+    return True
+
 def set_autostart(vms, vm, args):
     if len (args) != 1:
         print >> sys.stderr, "Missing value (True/False)!"
@@ -416,6 +434,7 @@ properties = {
     "default_user": set_default_user,
     "qrexec_installed": set_qrexec_installed,
     "guiagent_installed": set_guiagent_installed,
+    "seamless_gui_mode": set_seamless_gui_mode,
     "qrexec_timeout": set_qrexec_timeout,
     "timezone": set_timezone,
     "internal": set_internal,