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[tor-commits] [nyx/master] Avoid initially reading all manual information



commit 0712265c339c74dafac4e8e4beda081d9b0d65a2
Author: Damian Johnson <atagar@xxxxxxxxxxxxxx>
Date:   Sun Aug 27 11:07:14 2017 -0700

    Avoid initially reading all manual information
    
    We only need most manual information if users show all config options (which
    precious few do). As such lazy loading this on demand. This was only done
    for sorting anyway, and there's little point in sorting options that aren't
    visible. ;P
---
 nyx/panel/config.py | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/nyx/panel/config.py b/nyx/panel/config.py
index 5f09e66..00a6ccb 100644
--- a/nyx/panel/config.py
+++ b/nyx/panel/config.py
@@ -172,7 +172,8 @@ class ConfigPanel(nyx.panel.Panel):
   def __init__(self):
     nyx.panel.Panel.__init__(self)
 
-    self._contents = []
+    self._all_content = []
+    self._important_content = []
     self._scroller = nyx.curses.CursorScroller()
     self._sort_order = CONFIG['config_order']
     self._show_all = False  # show all options, or just the important ones
@@ -195,9 +196,13 @@ class ConfigPanel(nyx.panel.Panel):
         elif value_type == 'Virtual' and not CONFIG['show_virtual_options']:
           continue
 
-        self._contents.append(ConfigEntry(name, value_type))
+        entry = ConfigEntry(name, value_type)
+        self._all_content.append(entry)
 
-      self._contents = sorted(self._contents, key = lambda entry: [entry.sort_value(field) for field in self._sort_order])
+        if stem.manual.is_important(entry.name):
+          self._important_content.append(entry)
+
+      self._sort_content()
     except stem.ControllerError as exc:
       log.warn('Unable to determine the configuration options tor supports: %s' % exc)
 
@@ -211,7 +216,7 @@ class ConfigPanel(nyx.panel.Panel):
 
     if results:
       self._sort_order = results
-      self._contents = sorted(self._contents, key = lambda entry: [entry.sort_value(field) for field in self._sort_order])
+      self._sort_content()
 
   def _show_write_dialog(self):
     """
@@ -262,6 +267,7 @@ class ConfigPanel(nyx.panel.Panel):
 
     def _toggle_show_all():
       self._show_all = not self._show_all
+      self._sort_content()
       self.redraw()
 
     return (
@@ -324,7 +330,13 @@ class ConfigPanel(nyx.panel.Panel):
         break
 
   def _get_config_options(self):
-    return self._contents if self._show_all else list(filter(lambda entry: stem.manual.is_important(entry.name) or entry.is_set(), self._contents))
+    return self._all_content if self._show_all else self._important_content
+
+  def _sort_content(self):
+    if self._show_all:
+      self._all_content = sorted(self._all_content, key = lambda entry: [entry.sort_value(field) for field in self._sort_order])
+    else:
+      self._important_content = sorted(self._important_content, key = lambda entry: [entry.sort_value(field) for field in self._sort_order])
 
 
 def _draw_line(subwindow, x, y, entry, is_selected, value_width, description_width):



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