add `filter` command (#205)

* add `filter` command

* cargo fmt

4 files changed, 31 insertions, 1 deletions

diff --git a/src/commands/escape.rs b/src/commands/escape.rs
index 1a507df..26b3da4 100644
--- a/src/commands/escape.rs
+++ b/src/commands/escape.rs
@@ -1,9 +1,16 @@
 use crate::context::AppContext;
 use crate::error::JoshutoResult;
 
+use super::reload;
+
 pub fn escape(context: &mut AppContext) -> JoshutoResult {
     if let Some(curr_dir_list) = context.tab_context_mut().curr_tab_mut().curr_list_mut() {
-        curr_dir_list.visual_mode_cancel();
+        if curr_dir_list.get_visual_mode_anchor_index().is_some() {
+            curr_dir_list.visual_mode_cancel();
+        } else {
+            // reload to clear current filter
+            reload::reload_dirlist(context)?;
+        }
     };
     Ok(())
 }
diff --git a/src/commands/filter.rs b/src/commands/filter.rs
new file mode 100644
index 0000000..b87c901
--- /dev/null
+++ b/src/commands/filter.rs
@@ -0,0 +1,16 @@
+use crate::context::AppContext;
+use crate::error::JoshutoResult;
+
+use super::reload;
+
+pub fn filter(context: &mut AppContext, arg: &str) -> JoshutoResult {
+    let curr_tab = context.tab_context_mut().curr_tab_mut();
+    curr_tab.option_mut().set_filter_string(arg);
+
+    if let Some(list) = curr_tab.curr_list_mut() {
+        list.depreciate();
+    }
+
+    reload::soft_reload_curr_tab(context)?;
+    Ok(())
+}
diff --git a/src/commands/mod.rs b/src/commands/mod.rs
index 0bf83ae..c4f7531 100644
--- a/src/commands/mod.rs
+++ b/src/commands/mod.rs
@@ -5,6 +5,7 @@ pub mod cursor_move;
 pub mod delete_files;
 pub mod escape;
 pub mod file_ops;
+pub mod filter;
 pub mod flat;
 pub mod line_nums;
 pub mod new_directory;
diff --git a/src/commands/reload.rs b/src/commands/reload.rs
index f7197c1..fe5b6b3 100644
--- a/src/commands/reload.rs
+++ b/src/commands/reload.rs
@@ -92,6 +92,12 @@ pub fn reload(context: &mut AppContext, id: &Uuid) -> std::io::Result<()> {
 }
 
 pub fn reload_dirlist(context: &mut AppContext) -> JoshutoResult {
+    // clear filter on reload
+    context
+        .tab_context_mut()
+        .curr_tab_mut()
+        .option_mut()
+        .set_filter_string("");
     reload(context, &context.tab_context_ref().curr_tab_id())?;
     Ok(())
 }