[postr] Disable remove photos menu and button if no photos have been added

[Germán Poó Caamaño <gpoo src gnome org>]

commit fea82885c85c1509cdca39c3cff01f2d8267f1a3
Author: David Ignacio <deignacio gmail com>
Date:   Thu Nov 5 11:00:08 2009 -0300

    Disable remove photos menu and button if no photos have been added
    
    Signed-off-by: Germán Póo-Caamaño <gpoo gnome org>

 src/postr.glade |    2 +-
 src/postr.py    |   14 ++++++++++++++
 2 files changed, 15 insertions(+), 1 deletions(-)
---
diff --git a/src/postr.glade b/src/postr.glade
index 22a5d29..35de277 100644
--- a/src/postr.glade
+++ b/src/postr.glade
@@ -38,7 +38,7 @@
                       </widget>
                     </child>
                     <child>
-                      <widget class="GtkImageMenuItem" id="remove">
+                      <widget class="GtkImageMenuItem" id="remove_menu">
                         <property name="visible">True</property>
                         <property name="label" translatable="yes">_Remove Photos</property>
                         <property name="use_underline">True</property>
diff --git a/src/postr.py b/src/postr.py
index cc8eaf1..ec7aee2 100644
--- a/src/postr.py
+++ b/src/postr.py
@@ -80,6 +80,8 @@ class Postr(UniqueApp):
                            ("window",
                             "upload_menu",
                             "upload_button",
+                            "remove_menu",
+                            "remove_button",
                             "avatar_image",
                             "statusbar",
                             "thumbnail_image",
@@ -151,6 +153,9 @@ class Postr(UniqueApp):
         # Disable the Upload menu until the user has authenticated
         self.update_upload()
 
+        # We don't have any photos yet, disable remove buttons
+        self.update_remove()
+
         # Update the proxy configuration
         client = gconf.client_get_default()
         client.add_dir("/system/http_proxy", gconf.CLIENT_PRELOAD_RECURSIVE)
@@ -233,6 +238,7 @@ class Postr(UniqueApp):
         # We don't care about the arguments, because we just want to know when
         # the model was changed, not what was changed.
         self.update_upload()
+        self.update_remove()
     
     def auth_open_url(self, state):
         """Callback from midway through Flickr authentication.  At this point we
@@ -268,6 +274,11 @@ class Postr(UniqueApp):
         self.upload_menu.set_sensitive(connected)
         self.upload_button.set_sensitive(connected)
 
+    def update_remove(self):
+        have_photos = self.model.iter_n_children(None) > 0
+        self.remove_menu.set_sensitive(have_photos)
+        self.remove_button.set_sensitive(have_photos)
+
     def update_statusbar(self):
         """Recalculate how much is to be uploaded, and update the status bar."""
         size = 0
@@ -456,6 +467,8 @@ class Postr(UniqueApp):
 
         self.upload_menu.set_sensitive(False)
         self.upload_button.set_sensitive(False)
+        self.remove_menu.set_sensitive(False)
+        self.remove_button.set_sensitive(False)
         self.uploading = True
         self.thumbview.set_sensitive(False)
         self.progress_dialog.show()
@@ -779,6 +792,7 @@ class Postr(UniqueApp):
         self.window.set_title(_("Flickr Uploader"))
         self.upload_menu.set_sensitive(True)
         self.upload_button.set_sensitive(True)
+        self.update_remove()
         self.uploading = False
         self.progress_dialog.hide()
         self.thumbview.set_sensitive(True)