Update for i3 4.12

Commit i3/i3@dc05d90 introduces three new colorable bar parts.
Add opt-in support via conditional compilation.

Author: tmerr

Cargo.toml

@@ -11,3 +11,6 @@ unix_socket = "0.4.5"
 byteorder = "0.3"
 log = "0.3.7"
 serde_json = "0.6.0"
+
+[features]
+i3-4-12 = []

src/common.rs

@@ -110,6 +110,16 @@ pub fn build_bar_config(j: &json::Value) -> reply::BarConfig {
                     "background" => reply::ColorableBarPart::Background,
                     "statusline" => reply::ColorableBarPart::Statusline,
                     "separator" => reply::ColorableBarPart::Separator,
+
+                    #[cfg(feature = "i3-4-12")]
+                    "focused_background" => reply::ColorableBarPart::FocusedBackground,
+
+                    #[cfg(feature = "i3-4-12")]
+                    "focused_statusline" => reply::ColorableBarPart::FocusedStatusline,
+
+                    #[cfg(feature = "i3-4-12")]
+                    "focused_separator" => reply::ColorableBarPart::FocusedSeparator,
+
                     "focused_workspace_text" => reply::ColorableBarPart::FocusedWorkspaceText,
                     "focused_workspace_bg" => reply::ColorableBarPart::FocusedWorkspaceBg,
                     "focused_workspace_border" => reply::ColorableBarPart::FocusedWorkspaceBorder,

src/reply.rs

@@ -219,6 +219,20 @@ pub enum ColorableBarPart {
     /// Text color to be used for the separator.
     Separator,
 
+    /// Background color of the bar on the currently focused monitor output.
+    #[cfg(feature = "i3-4-12")]
+    FocusedBackground,
+
+    /// Text color to be used for the statusline on the currently focused
+    /// monitor output.
+    #[cfg(feature = "i3-4-12")]
+    FocusedStatusline,
+
+    /// Text color to be used for the separator on the currently focused
+    /// monitor output.
+    #[cfg(feature = "i3-4-12")]
+    FocusedSeparator,
+
     /// Text color for a workspace button when the workspace has focus.
     FocusedWorkspaceText,