From 2ff1dfc8b747744ddc8f997ebdaf7885812ac3ff Mon Sep 17 00:00:00 2001
From: Joseph Schorr <josephschorr@users.noreply.github.com>
Date: Wed, 22 Jul 2015 14:20:46 -0400
Subject: [PATCH] Switch to log base for the repo popularity

---
 static/directives/repo-list-table.html        |  3 ++-
 static/js/directives/ui/strength-indicator.js | 10 ++++++++--
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/static/directives/repo-list-table.html b/static/directives/repo-list-table.html
index 3871ba873..894f8572f 100644
--- a/static/directives/repo-list-table.html
+++ b/static/directives/repo-list-table.html
@@ -43,7 +43,8 @@
          <span class="empty" ng-if="!repository.last_modified">(Empty Repository)</span>
        </td>
        <td class="popularity hidden-xs">
-         <span class="strength-indicator" value="repository.popularity" maximum="maxPopularity"></span>
+         <span class="strength-indicator" value="repository.popularity" maximum="maxPopularity"
+               log-base="10"></span>
        </td>
        <td>
         <span class="repo-star" repository="repository"
diff --git a/static/js/directives/ui/strength-indicator.js b/static/js/directives/ui/strength-indicator.js
index 1d67c578f..01e342e55 100644
--- a/static/js/directives/ui/strength-indicator.js
+++ b/static/js/directives/ui/strength-indicator.js
@@ -10,7 +10,8 @@ angular.module('quay').directive('strengthIndicator', function () {
     restrict: 'C',
     scope: {
       'value': '=value',
-      'maximum': '=maximum'
+      'maximum': '=maximum',
+      'logBase': '=logBase'
     },
     controller: function($scope, $element) {
       $scope.strengthClass = '';
@@ -22,8 +23,13 @@ angular.module('quay').directive('strengthIndicator', function () {
         }
 
         var value = Math.round(($scope.value / $scope.maximum) * 4);
+        if ($scope.logBase) {
+          var currentValue = Math.log($scope.value) / Math.log($scope.logBase * 1);
+          var maximum = Math.log($scope.maximum) / Math.log($scope.logBase * 1);
+          value = Math.round((currentValue / maximum) * 4);
+        }
 
-         if (value <= 0) {
+        if (value <= 0) {
           $scope.strengthClass = 'none';
           return;
         }