code cleanup (#135)

* code cleanup

Remove dead code and unused imports around preview features.

* Remove unused config option [display]show_preview

* Remove config option [preview]preview_images

* Remove unused imports

* Remove dead code and unused imports

5 files changed, 0 insertions, 19 deletions

diff --git a/src/config/general/display_crude.rs b/src/config/general/display_crude.rs
index 409091a..bc4cf45 100644
--- a/src/config/general/display_crude.rs
+++ b/src/config/general/display_crude.rs
@@ -43,9 +43,6 @@ pub struct DisplayOptionCrude {
     pub show_icons: bool,
 
     #[serde(default = "default_true")]
-    pub show_preview: bool,
-
-    #[serde(default = "default_true")]
     pub tilde_in_titlebar: bool,
 
     #[serde(default, rename = "sort")]
@@ -65,7 +62,6 @@ impl std::default::Default for DisplayOptionCrude {
             show_borders: true,
             show_hidden: false,
             show_icons: false,
-            show_preview: true,
             sort_options: SortOptionCrude::default(),
             tilde_in_titlebar: true,
             line_number_style: "none".to_string(),
@@ -107,7 +103,6 @@ impl From<DisplayOptionCrude> for DisplayOption {
             _show_borders: crude.show_borders,
             _show_hidden: crude.show_hidden,
             _show_icons: crude.show_icons,
-            _show_preview: crude.show_preview,
             _sort_options: crude.sort_options.into(),
             _tilde_in_titlebar: crude.tilde_in_titlebar,
             _line_nums,
diff --git a/src/config/general/preview_crude.rs b/src/config/general/preview_crude.rs
index 8ba88d9..6a5b4ff 100644
--- a/src/config/general/preview_crude.rs
+++ b/src/config/general/preview_crude.rs
@@ -16,8 +16,6 @@ pub struct PreviewOptionCrude {
     #[serde(default = "default_max_preview_size")]
     pub max_preview_size: u64,
     #[serde(default)]
-    pub preview_images: bool,
-    #[serde(default)]
     pub preview_script: Option<String>,
     #[serde(default)]
     pub preview_shown_hook_script: Option<String>,
@@ -29,7 +27,6 @@ impl std::default::Default for PreviewOptionCrude {
     fn default() -> Self {
         Self {
             max_preview_size: default_max_preview_size(),
-            preview_images: false,
             preview_script: None,
             preview_shown_hook_script: None,
             preview_removed_hook_script: None,
@@ -66,7 +63,6 @@ impl From<PreviewOptionCrude> for PreviewOption {
 
         Self {
             max_preview_size: crude.max_preview_size,
-            preview_images: crude.preview_images,
             preview_script,
             preview_shown_hook_script,
             preview_removed_hook_script,
diff --git a/src/config/keymap/keymapping.rs b/src/config/keymap/keymapping.rs
index 341db95..8d8b108 100644
--- a/src/config/keymap/keymapping.rs
+++ b/src/config/keymap/keymapping.rs
@@ -5,8 +5,6 @@ use std::convert::{AsMut, AsRef, From};
 use std::str::FromStr;
 
 use termion::event::Event;
-#[cfg(feature = "mouse")]
-use termion::event::MouseEvent;
 
 use crate::config::{parse_to_config_file, TomlConfigFile};
 use crate::error::JoshutoResult;
diff --git a/src/config/option/display_option.rs b/src/config/option/display_option.rs
index 6454a1b..1749ece 100644
--- a/src/config/option/display_option.rs
+++ b/src/config/option/display_option.rs
@@ -16,7 +16,6 @@ pub struct DisplayOption {
     pub _show_borders: bool,
     pub _show_hidden: bool,
     pub _show_icons: bool,
-    pub _show_preview: bool,
     pub _sort_options: SortOption,
     pub _tilde_in_titlebar: bool,
     pub _line_nums: LineNumberStyle,
@@ -57,10 +56,6 @@ impl DisplayOption {
         self._show_icons
     }
 
-    pub fn show_preview(&self) -> bool {
-        self._show_preview
-    }
-
     pub fn set_show_hidden(&mut self, show_hidden: bool) {
         self._show_hidden = show_hidden;
     }
@@ -118,7 +113,6 @@ impl std::default::Default for DisplayOption {
             _show_borders: true,
             _show_hidden: false,
             _show_icons: false,
-            _show_preview: true,
             _sort_options: SortOption::default(),
             _tilde_in_titlebar: true,
             _line_nums: LineNumberStyle::None,
diff --git a/src/config/option/preview_option.rs b/src/config/option/preview_option.rs
index 14c1e7e..3102350 100644
--- a/src/config/option/preview_option.rs
+++ b/src/config/option/preview_option.rs
@@ -7,7 +7,6 @@ const fn default_max_preview_size() -> u64 {
 #[derive(Clone, Debug)]
 pub struct PreviewOption {
     pub max_preview_size: u64,
-    pub preview_images: bool,
     pub preview_script: Option<path::PathBuf>,
     pub preview_shown_hook_script: Option<path::PathBuf>,
     pub preview_removed_hook_script: Option<path::PathBuf>,
@@ -17,7 +16,6 @@ impl std::default::Default for PreviewOption {
     fn default() -> Self {
         Self {
             max_preview_size: default_max_preview_size(),
-            preview_images: false,
             preview_script: None,
             preview_shown_hook_script: None,
             preview_removed_hook_script: None,