history browsing

src/gopher.rs

@@ -50,28 +50,53 @@ impl Type {
 }
 
 pub fn type_for_char(c: char) -> Option<Type> {
-    match c {
-        '0' => Some(Type::Text),
-        '1' => Some(Type::Menu),
-        '2' => Some(Type::CSOEntity),
-        '3' => Some(Type::Error),
-        '4' => Some(Type::Binhex),
-        '5' => Some(Type::DOSFile),
-        '6' => Some(Type::UUEncoded),
-        '7' => Some(Type::Search),
-        '8' => Some(Type::Telnet),
-        '9' => Some(Type::Binary),
-        '+' => Some(Type::Mirror),
-        'g' => Some(Type::GIF),
-        'T' => Some(Type::Telnet3270),
-        'h' => Some(Type::HTML),
-        'I' => Some(Type::Image),
-        'p' => Some(Type::PNG),
-        'i' => Some(Type::Info),
-        's' => Some(Type::Sound),
-        'd' => Some(Type::Document),
-        _ => None,
-    }
+    Some(match c {
+        '0' => Type::Text,
+        '1' => Type::Menu,
+        '2' => Type::CSOEntity,
+        '3' => Type::Error,
+        '4' => Type::Binhex,
+        '5' => Type::DOSFile,
+        '6' => Type::UUEncoded,
+        '7' => Type::Search,
+        '8' => Type::Telnet,
+        '9' => Type::Binary,
+        '+' => Type::Mirror,
+        'g' => Type::GIF,
+        'T' => Type::Telnet3270,
+        'h' => Type::HTML,
+        'I' => Type::Image,
+        'p' => Type::PNG,
+        'i' => Type::Info,
+        's' => Type::Sound,
+        'd' => Type::Document,
+        _ => return None,
+    })
+}
+
+pub fn char_for_type(t: Type) -> Option<char> {
+    Some(match t {
+        Type::Text => '0',
+        Type::Menu => '1',
+        Type::CSOEntity => '2',
+        Type::Error => '3',
+        Type::Binhex => '4',
+        Type::DOSFile => '5',
+        Type::UUEncoded => '6',
+        Type::Search => '7',
+        Type::Telnet => '8',
+        Type::Binary => '9',
+        Type::Mirror => '+',
+        Type::GIF => 'g',
+        Type::Telnet3270 => 'T',
+        Type::HTML => 'h',
+        Type::Image => 'I',
+        Type::PNG => 'p',
+        Type::Info => 'i',
+        Type::Sound => 's',
+        Type::Document => 'd',
+        _ => return None,
+    })
 }
 
 macro_rules! error {

src/help.rs

@@ -1,11 +1,14 @@
-pub fn lookup(name: &str) -> Option<&str> {
-    match name {
-        "" | "/" | "help" => Some(HELP),
-        "types" => Some(TYPES),
-        "nav" => Some(NAV),
-        "home" => Some(HOME),
-        _ => None,
-    }
+use history;
+
+pub fn lookup(name: &str) -> Option<String> {
+    Some(match name {
+        "" | "/" | "help" => HELP.into(),
+        "types" => TYPES.into(),
+        "nav" => NAV.into(),
+        "home" => HOME.into(),
+        "history" => history::load_as_raw_menu().unwrap_or_else(|| String::new()),
+        _ => return None,
+    })
 }
 
 pub const HOME: &str = "

src/history.rs

@@ -0,0 +1,76 @@
+use gopher;
+use std::fs::File;
+use std::io::{BufRead, BufReader, Write};
+
+pub fn load_as_raw_menu() -> Option<String> {
+    let mut out = vec![];
+
+    if let Some(reader) = load() {
+        let mut lines = reader.lines();
+        while let Some(Ok(url)) = lines.next() {
+            let (t, host, port, sel) = gopher::parse_url(&url);
+            out.insert(
+                0,
+                format!(
+                    "{}{}\t{}\t{}\t{}",
+                    gopher::char_for_type(t).unwrap_or('i'),
+                    url,
+                    sel,
+                    host,
+                    port
+                ),
+            );
+        }
+    }
+
+    out.insert(0, "i~/.config/phetch/history:\r\ni".into());
+    Some(out.join("\r\n"))
+}
+
+pub fn load() -> Option<BufReader<File>> {
+    let dotdir = config_dir_path();
+    if dotdir.is_none() {
+        return None;
+    }
+    let history = dotdir.unwrap().join("history");
+    if let Ok(file) = std::fs::OpenOptions::new().read(true).open(history) {
+        return Some(BufReader::new(file));
+    }
+    None
+}
+
+pub fn save(urls: &[impl std::fmt::Display]) {
+    let dotdir = config_dir_path();
+    if dotdir.is_none() {
+        return;
+    }
+    let dotdir = dotdir.unwrap();
+    let mut out = String::new();
+    for url in urls {
+        out.push_str(url.to_string().as_ref());
+        out.push('\n');
+    }
+    let history = dotdir.join("history");
+    if let Ok(mut file) = std::fs::OpenOptions::new()
+        .append(true)
+        .create(true)
+        .open(history)
+    {
+        file.write_all(out.as_ref());
+    }
+}
+
+pub fn config_dir_path() -> Option<std::path::PathBuf> {
+    let homevar = std::env::var("HOME");
+    if homevar.is_err() {
+        return None;
+    }
+
+    let dotdir = "~/.config/phetch".replace('~', &homevar.unwrap());
+    let dotdir = std::path::Path::new(&dotdir);
+    if dotdir.exists() {
+        Some(std::path::PathBuf::from(dotdir))
+    } else {
+        None
+    }
+}

src/main.rs

@@ -5,6 +5,7 @@ extern crate termion;
 #[macro_use]
 mod gopher;
 mod help;
+mod history;
 mod menu;
 mod text;
 mod ui;

src/menu.rs

@@ -1,5 +1,6 @@
 use gopher;
 use gopher::Type;
+use std::fmt;
 use std::io::stdout;
 use std::io::Write;
 use ui;
@@ -33,6 +34,12 @@ enum LinkDir {
     Visible,
 }
 
+impl fmt::Display for Menu {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{}", self.url())
+    }
+}
+
 impl View for Menu {
     fn raw(&self) -> String {
         self.raw.to_string()

src/text.rs

@@ -1,3 +1,4 @@
+use std::fmt;
 use ui::{Action, Key, View, MAX_COLS, SCROLL_LINES};
 
 pub struct Text {
@@ -10,6 +11,12 @@ pub struct Text {
     pub wide: bool,       // in wide mode? turns off margins
 }
 
+impl fmt::Display for Text {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{}", self.url())
+    }
+}
+
 impl View for Text {
     fn url(&self) -> String {
         self.url.to_string()

src/ui.rs

@@ -17,6 +17,7 @@ use termion::terminal_size;
 use gopher;
 use gopher::Type;
 use help;
+use history;
 use menu::Menu;
 use text::Text;
 
@@ -172,7 +173,7 @@ impl UI {
             &url.trim_start_matches("gopher://help/")
                 .trim_start_matches("1/"),
         ) {
-            Ok(Box::new(Menu::from(url.to_string(), source.to_string())))
+            Ok(Box::new(Menu::from(url.to_string(), source)))
         } else {
             Err(error!("Help file not found: {}", url))
         }
@@ -236,65 +237,10 @@ impl UI {
         self.size.1 as u16
     }
 
-    fn startup(&mut self) {
-        self.load_history();
-    }
+    fn startup(&mut self) {}
 
     fn shutdown(&self) {
-        self.save_history();
-    }
-
-    fn config_dir_path(&self) -> Option<std::path::PathBuf> {
-        let homevar = std::env::var("HOME");
-        if homevar.is_err() {
-            return None;
-        }
-
-        let dotdir = "~/.config/phetch".replace('~', &homevar.unwrap());
-        let dotdir = std::path::Path::new(&dotdir);
-        if dotdir.exists() {
-            Some(std::path::PathBuf::from(dotdir))
-        } else {
-            None
-        }
-    }
-
-    fn load_history(&mut self) {
-        // let dotdir = self.config_dir_path();
-        // if dotdir.is_none() {
-        //     return;
-        // }
-        // let history = dotdir.unwrap().join("history");
-        // if let Ok(file) = std::fs::OpenOptions::new().read(true).open(history) {
-        //     let buffered = BufReader::new(file);
-        //     let mut lines = buffered.lines();
-        //     while let Some(Ok(url)) = lines.next() {}
-        // }
-    }
-
-    fn save_history(&self) {
-        let dotdir = self.config_dir_path();
-        if dotdir.is_none() {
-            return;
-        }
-        let dotdir = dotdir.unwrap();
-        let mut out = String::new();
-        for page in &self.views {
-            let url = page.url();
-            if url.starts_with("gopher://help/") {
-                continue;
-            }
-            out.push_str(&page.url());
-            out.push('\n');
-        }
-        let history = dotdir.join("history");
-        if let Ok(mut file) = std::fs::OpenOptions::new()
-            .append(true)
-            .create(true)
-            .open(history)
-        {
-            file.write_all(out.as_ref());
-        }
+        history::save(&self.views);
     }
 
     fn term_size(&mut self, cols: usize, rows: usize) {
@@ -378,6 +324,7 @@ impl UI {
                 }
             }
             Action::Keypress(Key::Ctrl('h')) => self.open("gopher://help/")?,
+            Action::Keypress(Key::Ctrl('e')) => self.open("gopher://help/1/history")?,
             Action::Keypress(Key::Ctrl('u')) => {
                 if let Some(page) = self.views.get(self.focused) {
                     let url = page.url();

src/ui/view.rs

@@ -1,6 +1,7 @@
+use std::fmt;
 use ui;
 
-pub trait View {
+pub trait View: fmt::Display {
     fn respond(&mut self, key: ui::Key) -> ui::Action;
     fn render(&self) -> String;
     fn url(&self) -> String;