From 844d72716e2175dcd5e39b4d1eecb9e3560aa0b9 Mon Sep 17 00:00:00 2001
From: Robert Speicher <rspeicher@gmail.com>
Date: Fri, 5 Jun 2015 15:50:36 -0400
Subject: Add Gitlab::Themes module; remove Gitlab::Theme

Now we can simply loop through all themes, among other things.

This also removes the `dark_theme` / `light_theme` classes and the
`theme_type` helper, since they weren't used anywhere.
---
 lib/gitlab/themes.rb | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 lib/gitlab/themes.rb

(limited to 'lib/gitlab/themes.rb')

diff --git a/lib/gitlab/themes.rb b/lib/gitlab/themes.rb
new file mode 100644
index 00000000000..5209df92795
--- /dev/null
+++ b/lib/gitlab/themes.rb
@@ -0,0 +1,67 @@
+module Gitlab
+  # Module containing GitLab's application theme definitions and helper methods
+  # for accessing them.
+  module Themes
+    # Theme ID used when no `default_theme` configuration setting is provided.
+    APPLICATION_DEFAULT = 2
+
+    # Struct class representing a single Theme
+    Theme = Struct.new(:id, :name, :css_class)
+
+    # All available Themes
+    THEMES = [
+      Theme.new(1, 'Graphite', 'ui_graphite'),
+      Theme.new(2, 'Charcoal', 'ui_charcoal'),
+      Theme.new(3, 'Green',    'ui_green'),
+      Theme.new(4, 'Gray',     'ui_gray'),
+      Theme.new(5, 'Violet',   'ui_violet'),
+      Theme.new(6, 'Blue',     'ui_blue')
+    ].freeze
+
+    # Convenience method to get a space-separated String of all the theme
+    # classes that might be applied to the `body` element
+    #
+    # Returns a String
+    def self.body_classes
+      THEMES.collect(&:css_class).uniq.join(' ')
+    end
+
+    # Get a Theme by its ID
+    #
+    # If the ID is invalid, returns the default Theme.
+    #
+    # id - Integer ID
+    #
+    # Returns a Theme
+    def self.by_id(id)
+      THEMES.detect { |t| t.id == id } || default
+    end
+
+    # Get the default Theme
+    #
+    # Returns a Theme
+    def self.default
+      by_id(default_id)
+    end
+
+    # Iterate through each Theme
+    #
+    # Yields the Theme object
+    def self.each(&block)
+      THEMES.each(&block)
+    end
+
+    private
+
+    def self.default_id
+      id = Gitlab.config.gitlab.default_theme.to_i
+
+      # Prevent an invalid configuration setting from causing an infinite loop
+      if id < THEMES.first.id || id > THEMES.last.id
+        APPLICATION_DEFAULT
+      else
+        id
+      end
+    end
+  end
+end
-- 
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