Don't show empty workspaces; a bit refactoring

src/cmds.rs

@@ -16,17 +16,14 @@
 //! Functions and data structures of the swayr client.
 
 use crate::con;
-use crate::con::DisplayFormat;
 use crate::config as cfg;
 use crate::ipc;
 use crate::ipc::SwayrCommand;
 use crate::util;
-
+use crate::util::DisplayFormat;
 use std::collections::HashMap;
-use std::fmt;
 use std::sync::Arc;
 use std::sync::RwLock;
-
 use swayipc as s;
 
 pub struct ExecSwayrCmdArgs<'a> {
@@ -34,16 +31,10 @@ pub struct ExecSwayrCmdArgs<'a> {
     pub extra_props: Arc<RwLock<HashMap<i64, ipc::ExtraProps>>>,
 }
 
-impl fmt::Display for SwayrCommand {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
-        write!(f, "{:?}", self)
-    }
-}
-
 impl DisplayFormat for SwayrCommand {
     fn format_for_display(&self, _: &cfg::Config) -> std::string::String {
         // TODO: Add a format to Config
-        format!("{}", self)
+        format!("{:?}", self)
     }
 }
 
@@ -124,7 +115,7 @@ pub fn switch_to_urgent_or_lru_window(
         .find(|w| w.is_urgent())
         .or_else(|| windows.get(0))
     {
-        println!("Switching to {}", win);
+        println!("Switching to {}, id: {}", win.get_app_name(), win.get_id());
         focus_window_by_id(win.get_id())
     } else {
         println!("No window to switch to.")
@@ -342,16 +333,9 @@ struct SwaymsgCmd<'a> {
     cmd: Vec<&'a str>,
 }
 
-impl<'a> fmt::Display for SwaymsgCmd<'a> {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
-        write!(f, "{}", self.cmd.join(" "))
-    }
-}
-
 impl DisplayFormat for SwaymsgCmd<'_> {
     fn format_for_display(&self, _: &cfg::Config) -> std::string::String {
-        // TODO: Add a format to Config
-        format!("{}", self)
+        format!("{}", self.cmd.join(" "))
     }
 }
 

src/con.rs

@@ -19,16 +19,12 @@ use crate::config as cfg;
 use crate::ipc;
 use crate::ipc::NodeMethods;
 use crate::util;
+use crate::util::DisplayFormat;
 use lazy_static::lazy_static;
 use std::cmp;
 use std::collections::HashMap;
-use std::fmt;
 use swayipc as s;
 
-pub trait DisplayFormat {
-    fn format_for_display(&self, config: &cfg::Config) -> String;
-}
-
 #[derive(Debug)]
 pub struct Window<'a> {
     node: &'a s::Node,
@@ -107,20 +103,6 @@ impl PartialOrd for Window<'_> {
     }
 }
 
-impl<'a> fmt::Display for Window<'a> {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
-        write!(
-            f,
-            "\"{}\" — {} on workspace {} (id: {}, urgent: {})",
-            self.get_title(),
-            self.get_app_name(),
-            self.workspace.name.as_ref().unwrap(),
-            self.get_id(),
-            self.node.urgent
-        )
-    }
-}
-
 lazy_static! {
     static ref APP_NAME_AND_VERSION_RX: regex::Regex =
         regex::Regex::new("(.+)(-[0-9.]+)").unwrap();
@@ -227,7 +209,9 @@ fn build_workspaces<'a>(
 ) -> Vec<Workspace<'a>> {
     let mut v = vec![];
     for workspace in root.workspaces() {
-        if !include_scratchpad && workspace.is_scratchpad() {
+        if workspace.windows().is_empty()
+            || workspace.is_scratchpad() && !include_scratchpad
+        {
             continue;
         }
 
@@ -297,18 +281,6 @@ pub enum WsOrWin<'a> {
     Win { win: &'a Window<'a> },
 }
 
-impl<'a> fmt::Display for WsOrWin<'a> {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
-        match self {
-            WsOrWin::Ws { ws } => ws.fmt(f),
-            WsOrWin::Win { win } => match f.write_str("\t") {
-                Ok(()) => win.fmt(f),
-                Err(e) => Err(e),
-            },
-        }
-    }
-}
-
 impl DisplayFormat for WsOrWin<'_> {
     fn format_for_display(&self, cfg: &cfg::Config) -> String {
         match self {
@@ -390,12 +362,6 @@ impl PartialOrd for Workspace<'_> {
     }
 }
 
-impl<'a> fmt::Display for Workspace<'a> {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
-        write!(f, "“Workspace {}” (id: {})", self.get_name(), self.get_id())
-    }
-}
-
 impl<'a> DisplayFormat for Workspace<'a> {
     fn format_for_display(&self, cfg: &cfg::Config) -> String {
         let default_format = cfg::Format::default();

src/util.rs

@@ -15,7 +15,6 @@
 
 //! Utility functions including selection between choices using a menu program.
 
-use crate::con::DisplayFormat;
 use crate::config as cfg;
 use lazy_static::lazy_static;
 use std::collections::HashMap;
@@ -175,6 +174,10 @@ fn test_desktop_entries() {
     }
 }
 
+pub trait DisplayFormat {
+    fn format_for_display(&self, config: &cfg::Config) -> String;
+}
+
 pub fn select_from_menu<'a, 'b, TS>(
     prompt: &'a str,
     choices: &'b [TS],