prefs and dialog tweaks

- manage prefs window so it only opens once, and gets closed properly
- provide silentlyClose shortcut to dialogmanager windows

aqt/__init__.py

@@ -38,19 +38,33 @@ except ImportError as e:
 
 from anki.utils import checksum
 
-# Dialog manager - manages non-modal windows
+# Dialog manager
 ##########################################################################
+# ensures only one copy of the window is open at once, and provides
+# a way for dialogs to clean up asynchronously when collection closes
+
+# to integrate a new window:
+# - add it to _dialogs
+# - define close behaviour, by either:
+# -- setting silentlyClose=True to have it close immediately
+# -- define a closeWithCallback() method
+# - have the window opened via aqt.dialogs.open(<name>, self)
+
+#- make preferences modal? cmd+q does wrong thing
+
+
+from aqt import addcards, browser, editcurrent, stats, about, \
+    preferences
 
 class DialogManager:
 
-    def __init__(self):
-        from aqt import addcards, browser, editcurrent, stats, about
-        self._dialogs = {
+    _dialogs = {
         "AddCards": [addcards.AddCards, None],
         "Browser": [browser.Browser, None],
         "EditCurrent": [editcurrent.EditCurrent, None],
         "DeckStats": [stats.DeckStats, None],
         "About": [about.show, None],
+        "Preferences": [preferences.Preferences, None],
     }
 
     def open(self, name, *args):
@@ -89,6 +103,10 @@ class DialogManager:
                     # still waiting for others to close
                     pass
 
+            if getattr(instance, "silentlyClose", False):
+                instance.close()
+                callback()
+            else:
                 instance.closeWithCallback(callback)
 
         return True

aqt/main.py

@@ -784,8 +784,7 @@ title="%s" %s>%s</button>''' % (
         aqt.dialogs.open("DeckStats", self)
 
     def onPrefs(self):
-        import aqt.preferences
-        aqt.preferences.Preferences(self)
+        aqt.dialogs.open("Preferences", self)
 
     def onNoteTypes(self):
         import aqt.models

aqt/preferences.py

@@ -22,6 +22,7 @@ class Preferences(QDialog):
         self.form.buttonBox.button(QDialogButtonBox.Help).setAutoDefault(False)
         self.form.buttonBox.button(QDialogButtonBox.Close).setAutoDefault(False)
         self.form.buttonBox.helpRequested.connect(lambda: openHelp("profileprefs"))
+        self.silentlyClose = True
         self.setupLang()
         self.setupCollection()
         self.setupNetwork()
@@ -40,6 +41,7 @@ class Preferences(QDialog):
         self.mw.pm.save()
         self.mw.reset()
         self.done(0)
+        aqt.dialogs.markClosed("Preferences")
 
     def reject(self):
         self.accept()