Add choosefiles feature (#105)

* Add choosefiles feature

* Use new QuitType::ChooseFile for choosefiles exit path

* Compute final selection better

3 files changed, 26 insertions, 4 deletions

diff --git a/src/commands/open_file.rs b/src/commands/open_file.rs
index e1d4208..cfa178a 100644
--- a/src/commands/open_file.rs
+++ b/src/commands/open_file.rs
@@ -2,7 +2,7 @@ use std::io;
 use std::path;
 
 use crate::config::AppMimetypeEntry;
-use crate::context::AppContext;
+use crate::context::{AppContext, QuitType};
 use crate::error::{JoshutoError, JoshutoErrorKind, JoshutoResult};
 use crate::ui::views::TuiTextField;
 use crate::ui::TuiBackend;
@@ -51,7 +51,9 @@ pub fn open(context: &mut AppContext, backend: &mut TuiBackend) -> JoshutoResult
 
             let options = get_options(paths[0].as_path());
 
-            if !options.is_empty() {
+            if context.args.choosefiles.is_some() {
+                context.quit = QuitType::ChooseFiles;
+            } else if !options.is_empty() {
                 if options[0].get_fork() {
                     options[0].execute_with(files.as_slice())?;
                 } else {
diff --git a/src/context/app_context.rs b/src/context/app_context.rs
index 72b8426..4834a36 100644
--- a/src/context/app_context.rs
+++ b/src/context/app_context.rs
@@ -6,6 +6,7 @@ use crate::context::{
 };
 use crate::event::{AppEvent, Events};
 use crate::util::search::SearchPattern;
+use crate::Args;
 
 #[derive(Clone, Copy, Debug, PartialEq)]
 pub enum QuitType {
@@ -13,12 +14,15 @@ pub enum QuitType {
     Normal,
     Force,
     ToCurrentDirectory,
+    ChooseFiles,
 }
 
 pub struct AppContext {
     pub quit: QuitType,
     // event loop querying
     pub events: Events,
+    // args from the command line
+    pub args: Args,
     // app config
     config: config::AppConfig,
     // context related to tabs
@@ -38,7 +42,7 @@ pub struct AppContext {
 }
 
 impl AppContext {
-    pub fn new(config: config::AppConfig) -> Self {
+    pub fn new(config: config::AppConfig, args: Args) -> Self {
         let events = Events::new();
         let event_tx = events.event_tx.clone();
 
@@ -47,6 +51,7 @@ impl AppContext {
         Self {
             quit: QuitType::DoNot,
             events,
+            args,
             tab_context: TabContext::new(),
             local_state: None,
             search_context: None,
diff --git a/src/main.rs b/src/main.rs
index e28e05a..375db4c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -78,6 +78,8 @@ lazy_static! {
 pub struct Args {
     #[structopt(long = "path", parse(from_os_str))]
     path: Option<PathBuf>,
+    #[structopt(long)]
+    choosefiles: Option<PathBuf>,
     #[structopt(short = "v", long = "version")]
     version: bool,
     #[structopt(long = "last-dir", parse(from_os_str))]
@@ -100,7 +102,7 @@ fn run_joshuto(args: Args) -> Result<(), JoshutoError> {
     let config = AppConfig::get_config(CONFIG_FILE);
     let keymap = AppKeyMapping::get_config(KEYMAP_FILE);
 
-    let mut context = AppContext::new(config);
+    let mut context = AppContext::new(config, args.clone());
     {
         let mut backend: ui::TuiBackend = ui::TuiBackend::new()?;
         run(&mut backend, &mut context, keymap)?;
@@ -121,6 +123,19 @@ fn run_joshuto(args: Args) -> Result<(), JoshutoError> {
                 file.write_all("\n".as_bytes())?;
             }
         }
+        QuitType::ChooseFiles => {
+            if let Some(path) = args.choosefiles {
+                let curr_tab = context.tab_context_ref().curr_tab_ref();
+                let final_selection = curr_tab
+                    .curr_list_ref()
+                    .into_iter()
+                    .flat_map(|s| s.get_selected_paths());
+                let mut f = File::create(path)?;
+                for file in final_selection {
+                    writeln!(f, "{}", file.display())?;
+                }
+            }
+        }
         QuitType::Force => {}
         _ => {}
     }