Replaced single check vm updates checkbox

Now there is a checkbox for the default for new VMs, and two
buttons to either disable checking for updates in all VMs or enable it
in all VMs.

qubesmanager/global_settings.py

@@ -212,12 +212,35 @@ class GlobalSettingsWindow(ui_globalsettingsdlg.Ui_GlobalSettings,
 
         self.updates_dom0.setChecked(self.updates_dom0_val)
 
-        self.updates_val = False
-        updates_vms = updates_vms_status(self.qvm_collection)
-        if updates_vms is None:
-            self.updates_vm.setCheckState(QtCore.Qt.PartiallyChecked)
-        else:
-            self.updates_vm.setCheckState(updates_vms)
+        self.updates_vm.setChecked(self.qvm_collection.check_updates_vm)
+        self.enable_updates_all.clicked.connect(self.__enable_updates_all)
+        self.disable_updates_all.clicked.connect(self.__disable_updates_all)
+
+    def __enable_updates_all(self):
+        reply = QtGui.QMessageBox.question(
+            self, self.tr("Change state of all qubes"),
+            self.tr("Are you sure you want to set all qubes to check "
+                    "for updates?"),
+            QtGui.QMessageBox.Yes | QtGui.QMessageBox.Cancel)
+        if reply == QtGui.QMessageBox.Cancel:
+            return
+
+        self.__set_updates_all(True)
+
+    def __disable_updates_all(self):
+        reply = QtGui.QMessageBox.question(
+            self, self.tr("Change state of all qubes"),
+            self.tr("Are you sure you want to set all qubes to not check "
+                    "for updates?"),
+            QtGui.QMessageBox.Yes | QtGui.QMessageBox.Cancel)
+        if reply == QtGui.QMessageBox.Cancel:
+            return
+
+        self.__set_updates_all(False)
+
+    def __set_updates_all(self, state):
+        for vm in self.qvm_collection.domains:
+            vm.features['check-updates'] = state
 
     def __apply_updates__(self):
         if self.updates_dom0.isChecked() != self.updates_dom0_val:
@@ -231,10 +254,7 @@ class GlobalSettingsWindow(ui_globalsettingsdlg.Ui_GlobalSettings,
                 else:
                     open(self.dom0_updates_file_path, 'a').close()
 
-        if self.updates_vm.checkState() != QtCore.Qt.PartiallyChecked:
-            for vm in self.qvm_collection.domains:
-                vm.features['check-updates'] = \
-                    bool(self.updates_vm.checkState())
+        self.qvm_collection.check_updates_vm = self.updates_vm.isChecked()
 
     def reject(self):
         self.done(0)

ui/globalsettingsdlg.ui

@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>678</width>
-    <height>331</height>
+    <width>651</width>
+    <height>386</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -195,6 +195,13 @@
       <string>Updates</string>
      </property>
      <layout class="QGridLayout" name="gridLayout_3">
+      <item row="1" column="1">
+       <widget class="QPushButton" name="disable_updates_all">
+        <property name="text">
+         <string>Disable checking for updates for all VMs</string>
+        </property>
+       </widget>
+      </item>
       <item row="0" column="0">
        <widget class="QCheckBox" name="updates_dom0">
         <property name="text">
@@ -215,6 +222,13 @@
         </property>
        </widget>
       </item>
+      <item row="2" column="1">
+       <widget class="QPushButton" name="enable_updates_all">
+        <property name="text">
+         <string>Enable checking for updates for all VMs</string>
+        </property>
+       </widget>
+      </item>
      </layout>
     </widget>
    </item>