1 files changed, 38 insertions, 0 deletions
diff --git a/DistUpgrade/DistUpgradeView.py b/DistUpgrade/DistUpgradeView.py
new file mode 100644
index 00000000..98e80c08
--- /dev/null
+++ b/DistUpgrade/DistUpgradeView.py
@@ -0,0 +1,38 @@
+
+class DistUpgradeView(object):
+    " abstraction for the upgrade view "
+    def __init__(self):
+        pass
+    def getOpCacheProgress(self):
+        " return a OpProgress() subclass for the given graphic"
+        return apt.progress.OpProgress()
+    def getFetchProgress(self):
+        " return a fetch progress object "
+        return apt.progress.FetchProgress()
+    def getInstallProgress(self):
+        " return a install progress object "
+        return apt.progress.InstallProgress()
+    def updateStatus(self, msg):
+        """ update the current status of the distUpgrade based
+            on the current view
+        """
+        pass
+    def confirmChanges(self, changes, downloadSize):
+        """ display the list of changed packages (apt.Package) and
+            return if the user confirms them
+        """
+        self.toInstall = []
+        self.toUpgrade = []
+        self.toRemove = []
+        for pkg in changes:
+            if pkg.markedInstall: self.toInstall.append(pkg.name)
+            elif pkg.markedUpgrade: self.toUpgrade.append(pkg.name)
+            elif pkg.markedDelete: self.toRemove.append(pkg.name)
+        # no downgrades, re-installs 
+        assert(len(self.toInstall)+len(self.toUpgrade)+len(self.toRemove) == len(changes))
+    def askYesNoQuestion(self, summary, msg):
+        " ask a Yes/No question and return True on 'Yes' "
+        pass
+    def error(self, summary, msg):
+        " display a error "
+        pass