Add touchscreen support with onscreen keyboard (#1)

Possible that framebuffer doesn't update without actual keypress (eg, volume down). But, works.
2025-02-10 05:03:49 +00:00
parent 8d0a317819
commit cc34a54cd9
13 changed files with 536 additions and 72 deletions
--- a/docs/window-likes/audio-player.md
+++ b/docs/window-likes/audio-player.md
@@ -1,4 +1,4 @@
-Audio player with playlist and folder support.
+Audio player with playlist and folder support. Requires the dev version of `alsa` lib.

 ## Commands

--- a/docs/window-likes/onscreen-keyboard.md
+++ b/docs/window-likes/onscreen-keyboard.md
@@ -0,0 +1 @@
+This is primarily intended for mobile users.
--- a/src/bin/main.rs
+++ b/src/bin/main.rs
@@ -12,6 +12,7 @@ fn main() {
    height: fb.var_screen_info.yres_virtual as usize,
    bytes_per_pixel,
    stride: fb.fix_screen_info.line_length as usize / bytes_per_pixel,
+    old_stride: None,
  };

  init(fb, fb_info);
--- a/src/components/mod.rs
+++ b/src/components/mod.rs
@@ -7,6 +7,7 @@ use crate::window_manager::DrawInstructions;
 pub mod toggle_button;
 pub mod highlight_button;
 pub mod paragraph;
+pub mod press_button;

 pub trait Component<T> {
  fn handle_message(&mut self, message: WindowMessage) -> Option<T>;
@@ -17,6 +18,7 @@ pub trait Component<T> {
  //focusing for components is purely to give a visual representation
  fn focusable(&self) -> bool;
  fn clickable(&self) -> bool;
+  //fn pressable(&self) -> bool; //touch
  fn name(&self) -> &String; //should be unique
 }

--- a/src/components/press_button.rs
+++ b/src/components/press_button.rs
@@ -0,0 +1,69 @@
+use std::vec;
+use std::vec::Vec;
+
+use crate::components::Component;
+use crate::framebuffer::{ Dimensions, Point };
+use crate::themes::ThemeInfo;
+use crate::messages::WindowMessage;
+use crate::window_manager::{ DrawInstructions };
+
+const MONO_WIDTH: u8 = 10;
+
+pub struct PressButton<T> {
+  pub top_left: Point,
+  pub size: Dimensions,
+  text: String,
+  press_return: T,
+}
+
+impl<T: Clone> Component<T> for PressButton<T> {
+  //
+  fn handle_message(&mut self, message: WindowMessage) -> Option<T> {
+    match message {
+      WindowMessage::Touch(_, _) => {
+        //assume that the parent window-like passed it to us intentionally and checked already
+        //we can check again, but why?
+        Some(self.press_return.clone())
+      },
+      _ => None,
+    }
+  }
+
+  fn draw(&self, theme_info: &ThemeInfo) -> Vec<DrawInstructions> {
+    let half = self.size[0] / 2 - self.text.len() * MONO_WIDTH as usize / 2;
+    vec![
+      DrawInstructions::Rect(self.top_left, [self.size[0], 1], theme_info.border_left_top),
+      DrawInstructions::Rect(self.top_left, [1, self.size[1]], theme_info.border_left_top),
+      DrawInstructions::Rect([self.top_left[0], self.top_left[1] + self.size[1]], [self.size[0], 1], theme_info.border_right_bottom),
+      DrawInstructions::Rect([self.top_left[0] + self.size[0], self.top_left[1]], [1, self.size[1]], theme_info.border_right_bottom),
+      //assume normal background colour
+      DrawInstructions::Text([self.top_left[0] + half, self.top_left[1] + 8], vec!["times-new-romono".to_string()], self.text.clone(), theme_info.text, theme_info.background, Some(0), Some(MONO_WIDTH)),
+    ]
+  }
+
+  //properties
+  fn focusable(&self) -> bool {
+    false
+  }
+
+  fn clickable(&self) -> bool {
+    false
+  }
+  
+  fn name(&self) -> &String {
+    //sorry
+    &self.text
+  }
+}
+
+impl<T> PressButton<T> {
+  pub fn new(top_left: Point, size: Dimensions, text: String, press_return: T) -> Self {
+    Self {
+      top_left,
+      size,
+      text,
+      press_return,
+    }
+  }
+}
+
--- a/src/essential/mod.rs
+++ b/src/essential/mod.rs
@@ -3,6 +3,7 @@ pub mod taskbar;
 pub mod lock_screen;
 pub mod workspace_indicator;
 pub mod start_menu;
+pub mod onscreen_keyboard;

 pub mod about;
 pub mod help;
--- a/src/essential/onscreen_keyboard.rs
+++ b/src/essential/onscreen_keyboard.rs
@@ -0,0 +1,200 @@
+use std::vec;
+use std::vec::Vec;
+use std::collections::HashMap;
+
+use crate::window_manager::{ DrawInstructions, WindowLike, WindowLikeType, KeyChar };
+use crate::messages::{ WindowMessage, WindowMessageResponse, WindowManagerRequest };
+use crate::framebuffer::Dimensions;
+use crate::themes::ThemeInfo;
+use crate::components::Component;
+use crate::components::press_button::PressButton;
+use crate::utils::point_inside;
+
+//seems like framebuffer only updates if (real) key is pressed...
+//on mobile, volume down button seems to work but is annoying
+
+const PADDING_Y: usize = 15;
+const PADDING_X: usize = 15;
+//padding in between keys in the x direction
+const KEY_PADDING_X: usize = 5;
+const KEY_PADDING_Y: usize = 5;
+
+#[derive(Clone, Default, Eq, PartialEq, Hash)]
+enum Board {
+  #[default]
+  Regular,
+  Shift,
+  Symbols,
+  SymbolsShift,
+}
+
+impl Board {
+  fn inc(&mut self) -> Self {
+    match self {
+      Board::Regular => Board::Shift,
+      Board::Shift => Board::Symbols,
+      Board::Symbols => Board::SymbolsShift,
+      Board::SymbolsShift => Board::Regular,
+    }
+  }
+}
+
+#[derive(Clone)]
+enum KeyResponse {
+  Key(char),
+  Alt,
+  Ctrl,
+  SwitchBoard,
+}
+
+//if alt is true and ctrl is true, only alt will be sent.
+//because I don't care about ctrl+alt stuff, and won't use it.
+//(and probably not supported by this with a real keyboard anyways)
+#[derive(Default)]
+pub struct OnscreenKeyboard {
+  dimensions: Dimensions,
+  components: Vec<Box<PressButton<KeyResponse>>>,
+  alt: bool,
+  ctrl: bool,
+  board: Board,
+}
+
+impl WindowLike for OnscreenKeyboard {
+  fn handle_message(&mut self, message: WindowMessage) -> WindowMessageResponse {
+    match message {
+      WindowMessage::Init(dimensions) => {
+        self.dimensions = dimensions;
+        self.set_key_components();
+        WindowMessageResponse::JustRedraw
+      },
+      WindowMessage::Touch(x, y) => {
+        for c in &mut self.components {
+          if point_inside([x, y], c.top_left, c.size) {
+            let returned = c.handle_message(WindowMessage::Touch(x, y));
+            if let Some(returned) = returned {
+              return match returned {
+                KeyResponse::Key(ch) => {
+                  let kc = if self.alt {
+                    self.alt = false;
+                    KeyChar::Alt(ch)
+                  } else if self.ctrl {
+                    self.ctrl = false;
+                    KeyChar::Ctrl(ch)
+                  } else {
+                    KeyChar::Press(ch)
+                  };
+                  WindowMessageResponse::Request(WindowManagerRequest::DoKeyChar(kc))
+                },
+                KeyResponse::Alt => {
+                  self.alt = !self.alt;
+                  WindowMessageResponse::DoNothing
+                },
+                KeyResponse::Ctrl => {
+                  self.ctrl = !self.ctrl;
+                  WindowMessageResponse::DoNothing
+                },
+                KeyResponse::SwitchBoard => {
+                  self.board = self.board.inc();
+                  WindowMessageResponse::DoNothing
+                },
+              };
+            }
+          }
+        }
+        WindowMessageResponse::DoNothing
+      },
+      _ => WindowMessageResponse::DoNothing,
+    }
+  }
+
+  fn draw(&self, theme_info: &ThemeInfo) -> Vec<DrawInstructions> {
+    let mut instructions = vec![DrawInstructions::Rect([0, 0], self.dimensions, theme_info.background)];
+    for component in &self.components {
+      instructions.extend(component.draw(theme_info));
+    }
+    instructions
+  }
+
+  fn subtype(&self) -> WindowLikeType {
+    WindowLikeType::OnscreenKeyboard
+  }
+
+  fn ideal_dimensions(&self, dimensions: Dimensions) -> Dimensions {
+    [dimensions[0] - 175, 250]
+  }
+}
+
+impl OnscreenKeyboard {
+  pub fn new() -> Self {
+    Default::default()
+  }
+
+  fn set_key_components(&mut self) {
+    self.components = Vec::new();
+    let rows: [HashMap<Board, Vec<char>>; 4] = [
+      HashMap::from([
+        (Board::Regular, vec!['q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p']),
+        (Board::Shift, vec!['Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P']),
+        (Board::Symbols, vec!['1', '2', '3', '4', '5', '6', '7', '8', '9', '0']),
+        (Board::SymbolsShift, vec![]), //empty
+      ]),
+      HashMap::from([
+        (Board::Regular, vec!['a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l']),
+        (Board::Shift, vec!['A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L']),
+        (Board::Symbols, vec!['|', '=', '$', '%', '&', '-', '+', '(', ')']),
+        (Board::SymbolsShift, vec!['`', '@', '#', '^']),
+      ]),
+      HashMap::from([
+        (Board::Regular, vec!['𐘃', 'z', 'x', 'c', 'v', 'b', 'n', 'm', '𐘁']), //escape and backspace
+        (Board::Shift, vec!['𐘃', 'z', 'x', 'c', 'v', 'b', 'n', 'm', '𐘁']), //escape and backspace
+        (Board::Symbols, vec!['~', '*', '"', '\'', ':', ';', '!', '?', '𐘁']), //backspace
+        (Board::SymbolsShift, vec!['[', ']', '{', '}', '𐘁']), //backspace
+      ]),
+      HashMap::from([
+        (Board::Regular, vec!['𐘧', '𐘎', ' ', '𐘂']), //switch board (special case, not a real key), alt (special case, not a real key), enter
+        (Board::Shift, vec!['𐘧', '𐘎', ' ', '𐘂']), //switch board (special case, not a real key), alt (special case, not a real key), enter
+        (Board::Symbols, vec!['𐘧', '𐘎', ',', '_', ' ', '/', '.', '𐘂']), //switch board (special case, not a real key), alt (special case, not a real key), enter
+        (Board::SymbolsShift, vec!['𐘧', '𐘎', '\\', '<', ' ', '>', '𐘾', '𐘂']), //switch board (special case, not a real key), alt (special case, not a real key), ctrl (special case, not a real key), enter
+        //ctrl = shimazu
+      ]),
+    ];
+    //hardcoded for now
+    let mut y = PADDING_Y;
+    let key_height = (self.dimensions[1] - PADDING_Y * 2 - KEY_PADDING_Y * (rows.len() - 1)) / rows.len();
+    let reg_key_width = (self.dimensions[0] - PADDING_X * 2 - KEY_PADDING_X * (10 - 1)) / 10;
+    for row in rows {
+      let row_keys = &row[&self.board];
+      //centre
+      let mut x = PADDING_X + (10 - row_keys.len()) * (reg_key_width + KEY_PADDING_X) / 2;
+      for key in row_keys {
+        let press_return = if key == &'𐘧' {
+          KeyResponse::SwitchBoard
+        } else if key == &'𐘎' {
+          KeyResponse::Alt
+        } else if key == &'𐘾' {
+          KeyResponse::Ctrl
+        } else {
+          KeyResponse::Key(*key)
+        };
+        let mut text = key.to_string();
+        if text == "𐘧" {
+          text = "Switch".to_string();
+        } else if text == "𐘎" {
+          text = "Alt".to_string();
+        } else if text == "𐘂" {
+          text = "Enter".to_string();
+        } else if text == "𐘁" {
+          text = "Back".to_string();
+        } else if text == "𐘃" {
+          text = "Esc".to_string();
+        } else if text == "𐘾" {
+          text = "Ctrl".to_string();
+        }
+        self.components.push(Box::new(PressButton::new([x, y], [reg_key_width, key_height], text, press_return)));
+        x += reg_key_width + KEY_PADDING_X;
+      }
+      y += key_height + KEY_PADDING_Y;
+    }
+  }
+}
+
--- a/src/framebuffer.rs
+++ b/src/framebuffer.rs
@@ -38,6 +38,7 @@ pub struct FramebufferInfo {
  pub height: usize,
  pub bytes_per_pixel: usize,
  pub stride: usize,
+  pub old_stride: Option<usize>, //used/set only when rotate is true
 }

 //currently doesn't check if writing onto next line accidentally
@@ -45,6 +46,7 @@ pub struct FramebufferWriter {
  info: FramebufferInfo,
  buffer: Vec<u8>,
  saved_buffer: Option<Vec<u8>>,
+  rotate_buffer: Option<Vec<u8>>,
 }

 impl FramebufferWriter {
@@ -57,10 +59,25 @@ impl FramebufferWriter {
    self.info.clone()
  }
  
-  pub fn get_buffer(&self) -> &[u8] {
+  pub fn get_buffer(&mut self) -> &[u8] {
    &self.buffer
  }

+  pub fn get_transposed_buffer(&mut self) -> &[u8] {
+    let mut output_array = vec![255; self.info.byte_len];
+    let row_bytes_len = self.info.stride * self.info.bytes_per_pixel;
+    let row_bytes_len_transposed = self.info.old_stride.unwrap_or(self.info.height) * self.info.bytes_per_pixel;
+    for y in 0..self.info.height {
+      for x in 0..self.info.width {
+        for i in 0..self.info.bytes_per_pixel {
+          output_array[(self.info.width - x - 1) * row_bytes_len_transposed + y * self.info.bytes_per_pixel + i] = self.buffer[y * row_bytes_len + x * self.info.bytes_per_pixel + i];
+        }
+      }
+    }
+    self.rotate_buffer = Some(output_array);
+    &self.rotate_buffer.as_ref().unwrap()
+  }
+
  pub fn save_buffer(&mut self) {
    self.saved_buffer = Some(self.buffer.clone());
  }
@@ -237,6 +254,7 @@ impl Default for FramebufferWriter {
      info: Default::default(),
      buffer: Vec::new(),
      saved_buffer: None,
+      rotate_buffer: None,
    }
  }
 }
--- a/src/keyboard.rs
+++ b/src/keyboard.rs
@@ -1,22 +0,0 @@
-use termion::event::Key;
-
-#[derive(Clone, Debug, PartialEq)]
-pub enum KeyChar {
-  Press(char),
-  Alt(char),
-  Ctrl(char),
-}
-
-//use Linear A for escape, backspace, enter
-pub fn key_to_char(key: Key) -> Option<KeyChar> {
-  match key {
-    Key::Char('\n') => Some(KeyChar::Press('𐘂')),
-    Key::Char(c) => Some(KeyChar::Press(c)),
-    Key::Alt(c) => Some(KeyChar::Alt(c)),
-    Key::Ctrl(c) => Some(KeyChar::Ctrl(c)),
-    Key::Backspace => Some(KeyChar::Press('𐘁')),
-    Key::Esc => Some(KeyChar::Press('𐘃')),
-    _ => None,
-  }
-}
-
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -8,6 +8,5 @@ pub mod utils;
 pub mod logging;
 pub mod ipc;
 mod proxy_window_like;
-mod keyboard;
 mod essential;

--- a/src/messages.rs
+++ b/src/messages.rs
@@ -4,12 +4,12 @@ use std::vec::Vec;

 use serde::{ Deserialize, Serialize };

-use crate::keyboard::KeyChar;
 use crate::framebuffer::Dimensions;
-use crate::window_manager::WindowLike;
+use crate::window_manager::{ WindowLike, KeyChar };

 pub enum WindowManagerMessage {
  KeyChar(KeyChar),
+  Touch(usize, usize),
  //
 }

@@ -24,22 +24,17 @@ impl PartialEq for WindowBox {
 }
 */

-#[derive(PartialEq, Serialize, Deserialize)]
+#[derive(Debug, PartialEq, Serialize, Deserialize)]
 pub enum WindowManagerRequest {
  OpenWindow(String),
  ClipboardCopy(String),
  CloseStartMenu,
  Unlock,
  Lock,
+  DoKeyChar(KeyChar),
  //
 }

-impl fmt::Debug for WindowManagerRequest{
-  fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-    write!(f, "WindowManagerRequest lmao")
-  }
-}
-
 #[derive(PartialEq, Debug, Serialize, Deserialize)]
 pub enum WindowMessageResponse {
  Request(WindowManagerRequest),
@@ -47,6 +42,16 @@ pub enum WindowMessageResponse {
  DoNothing,
 }

+impl WindowMessageResponse {
+  pub fn is_key_char_request(&self) -> bool {
+    if let WindowMessageResponse::Request(WindowManagerRequest::DoKeyChar(_)) = self {
+      true
+    } else {
+      false
+    }
+  }
+}
+
 #[derive(Serialize, Deserialize)]
 pub struct KeyPress {
  pub key: char,
@@ -99,5 +104,14 @@ pub enum WindowMessage {
  Unfocus,
  FocusClick,
  ChangeDimensions(Dimensions),
+  Touch(usize, usize), //for onscreen keyboard only
  //
 }
+
+pub enum ThreadMessage {
+  KeyChar(KeyChar),
+  Touch(usize, usize),
+  Clear,
+  Exit,
+}
+
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -1,5 +1,28 @@
 use std::path::PathBuf;

+use termion::event::Key;
+
+use crate::window_manager::KeyChar;
+use crate::framebuffer::{ Dimensions, Point };
+
+//use Linear A for escape, backspace, enter
+//Linear A used only internally in onscreen keyboard: 𐘎 is alt, 𐘧 is switch board, 𐘾 is ctrl
+pub fn key_to_char(key: Key) -> Option<KeyChar> {
+  match key {
+    Key::Char('\n') => Some(KeyChar::Press('𐘂')),
+    Key::Char(c) => Some(KeyChar::Press(c)),
+    Key::Alt(c) => Some(KeyChar::Alt(c)),
+    Key::Ctrl(c) => Some(KeyChar::Ctrl(c)),
+    Key::Backspace => Some(KeyChar::Press('𐘁')),
+    Key::Esc => Some(KeyChar::Press('𐘃')),
+    _ => None,
+  }
+}
+
+pub fn min(one: usize, two: usize) -> usize {
+  if one > two { two } else { one } 
+}
+
 pub trait Substring {
  fn substring(&self, start: usize, end: usize) -> &str;
  fn remove(&self, index: usize, len: usize) -> String;
@@ -20,7 +43,6 @@ impl Substring for String {
        break;
      }
      byte_end += char_length;
-      
    }
    &self[byte_start..byte_end]
  }
@@ -125,3 +147,13 @@ pub fn is_hex(c: char) -> bool {
  HEX_CHARS.iter().position(|hc| hc == &c).is_some()
 }

+pub fn point_inside(point: Point, top_left: Point, size: Dimensions) -> bool {
+  let x = point[0];
+  let y = point[1];
+  let x2 = top_left[0];
+  let y2 = top_left[1];
+  let x3 = x2 + size[0];
+  let y3 = y2 + size[1];
+  x >= x2 && y >= y2 && x <= x3 && y <= y3
+}
+
--- a/src/window_manager.rs
+++ b/src/window_manager.rs
@@ -3,19 +3,24 @@ use std::vec;
 use std::collections::{ HashMap, VecDeque };
 use std::fmt;
 use std::boxed::Box;
-use std::io::{ stdin, stdout, Write };
+use std::io::{ stdin, stdout, BufReader, BufRead, Write };
 use std::process::exit;
 use std::cell::RefCell;
+use std::sync::mpsc;
+use std::thread;
+use std::time::Duration;
+use std::env;
+use std::process::{ Command, Stdio };

 use linux_framebuffer::Framebuffer;
 use termion::input::TermRead;
 use termion::raw::IntoRawMode;
-use termion::cursor;
+use termion::{ clear, cursor };
 use serde::{ Deserialize, Serialize };

 use crate::framebuffer::{ FramebufferWriter, FramebufferInfo, Point, Dimensions, RGBColor };
 use crate::themes::{ ThemeInfo, Themes, get_theme_info };
-use crate::keyboard::{ KeyChar, key_to_char };
+use crate::utils::{ min, key_to_char, point_inside };
 use crate::messages::*;
 use crate::proxy_window_like::ProxyWindowLike;
 use crate::essential::desktop_background::DesktopBackground;
@@ -25,13 +30,40 @@ use crate::essential::workspace_indicator::WorkspaceIndicator;
 use crate::essential::start_menu::StartMenu;
 use crate::essential::about::About;
 use crate::essential::help::Help;
+use crate::essential::onscreen_keyboard::OnscreenKeyboard;
 //use crate::logging::log;

+//todo: a lot of the usize should be changed to u16
+
 pub const TASKBAR_HEIGHT: usize = 38;
 pub const INDICATOR_HEIGHT: usize = 20;
 const WINDOW_TOP_HEIGHT: usize = 26;

+#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+pub enum KeyChar {
+  Press(char),
+  Alt(char),
+  Ctrl(char),
+}
+
 pub fn init(framebuffer: Framebuffer, framebuffer_info: FramebufferInfo) {
+  let args: Vec<_> = env::args().collect();
+
+  let rotate = args.contains(&"rotate".to_string());
+
+  let framebuffer_info = if rotate {
+    FramebufferInfo {
+      byte_len: framebuffer_info.byte_len,
+      width: framebuffer_info.height,
+      height: framebuffer_info.width,
+      bytes_per_pixel: framebuffer_info.bytes_per_pixel,
+      stride: framebuffer_info.height,
+      old_stride: Some(framebuffer_info.stride),
+    }
+  } else {
+    framebuffer_info
+  };
+
  let dimensions = [framebuffer_info.width, framebuffer_info.height];
  
  println!("bg: {}x{}", dimensions[0], dimensions[1] - TASKBAR_HEIGHT - INDICATOR_HEIGHT);
@@ -40,36 +72,101 @@ pub fn init(framebuffer: Framebuffer, framebuffer_info: FramebufferInfo) {

  writer.init(framebuffer_info.clone());

-  let mut wm: WindowManager = WindowManager::new(writer, framebuffer, dimensions);
+  let mut wm: WindowManager = WindowManager::new(writer, framebuffer, dimensions, rotate);
+
+  let mut stdout = stdout().into_raw_mode().unwrap();
+
+  write!(stdout, "{}", clear::All).unwrap();
+
+  write!(stdout, "{}", cursor::Hide).unwrap();
+
+  stdout.flush().unwrap();

  wm.draw(None, false);

-  let stdin = stdin().lock();
-  let mut stdout = stdout().into_raw_mode().unwrap();
+  let (tx, rx) = mpsc::channel();

-  write!(stdout, "{}", cursor::Hide).unwrap();
-  stdout.flush().unwrap();
+  let tx1 = tx.clone();

+  //read key presses
+  thread::spawn(move || {
+    let stdin = stdin().lock();
+    for c in stdin.keys() {
+      if let Some(kc) = key_to_char(c.unwrap()) {
+        //do not allow exit when locked unless debugging
+        //if kc == KeyChar::Alt('E') {
+        if kc == KeyChar::Alt('E') {
+          tx.send(ThreadMessage::Exit).unwrap();
+        } else {
+          tx.send(ThreadMessage::KeyChar(kc)).unwrap();
+        }
+      }
+      thread::sleep(Duration::from_millis(1));
+    }
+  });

-  for c in stdin.keys() {
-    if let Some(kc) = key_to_char(c.unwrap()) {
-      //do not allow exit when locked unless debugging
-      //if kc == KeyChar::Alt('E') {
-      if kc == KeyChar::Alt('E') && !wm.locked {
-        write!(stdout, "{}", cursor::Show).unwrap();
-        stdout.suspend_raw_mode().unwrap();
-        exit(0);
-      } else {
-        wm.handle_message(WindowManagerMessage::KeyChar(kc.clone()));
+  let touch = args.contains(&"touch".to_string());
+
+  //read touchscreen presses (hopefully)
+  thread::spawn(move || {
+    //spawn evtest, parse it for touch coords
+    if touch {
+      let mut evtest = Command::new("evtest").arg("/dev/input/by-path/first-touchscreen").stdout(Stdio::piped()).spawn().unwrap();
+      let reader = BufReader::new(evtest.stdout.as_mut().unwrap());
+      let mut x: Option<usize> = None;
+      let mut y: Option<usize> = None;
+      for line in reader.lines() {
+        let line = line.unwrap();
+        if line.contains(&"ABS_X), value ") || line.contains(&"ABS_Y), value ") {
+          let value: Vec<_> = line.split("), value ").collect();
+          let value = value[value.len() - 1].parse::<usize>().unwrap();
+          if line.contains(&"ABS_X") {
+            x = Some(value);
+          } else {
+            y = Some(value);
+          }
+          if x.is_some() && y.is_some() {
+            let (x2, y2) = if rotate {
+              (y.unwrap(), dimensions[1] - x.unwrap())
+            } else {
+              (x.unwrap(), y.unwrap())
+            };
+            //top right, clear
+            //useful sometimes, I think.
+            if x2 > dimensions[0] - 100 && y2 < 100 {
+              tx1.send(ThreadMessage::Clear).unwrap();
+            }
+            tx1.send(ThreadMessage::Touch(x2, y2)).unwrap();
+            x = None;
+            y = None;
+          }
+        }
+        thread::sleep(Duration::from_millis(1));
      }
    }
+  });
+  if touch {
+    //opens osk
+    wm.handle_message(WindowManagerMessage::Touch(1, 1));
  }
  
-  //
-}
-
-pub fn min(one: usize, two: usize) -> usize {
-  if one > two { two } else { one } 
+  for message in rx {
+    match message {
+      ThreadMessage::KeyChar(kc) => wm.handle_message(WindowManagerMessage::KeyChar(kc.clone())),
+      ThreadMessage::Touch(x, y) => wm.handle_message(WindowManagerMessage::Touch(x, y)),
+      ThreadMessage::Clear => {
+        write!(stdout, "{}", clear::All).unwrap();
+        stdout.flush().unwrap();
+      },
+      ThreadMessage::Exit => {
+        if !wm.locked {
+          write!(stdout, "{}", cursor::Show).unwrap();
+          stdout.suspend_raw_mode().unwrap();
+          exit(0);
+        }
+      },
+    };
+  }
 }

 #[derive(Debug, Serialize, Deserialize)]
@@ -89,6 +186,7 @@ pub enum WindowLikeType {
  Taskbar,
  StartMenu,
  WorkspaceIndicator,
+  OnscreenKeyboard,
 }

 pub trait WindowLike {
@@ -133,8 +231,10 @@ impl fmt::Debug for WindowLikeInfo {

 pub struct WindowManager {
  writer: RefCell<FramebufferWriter>,
+  rotate: bool,
  id_count: usize,
  window_infos: Vec<WindowLikeInfo>,
+  osk: Option<WindowLikeInfo>,
  dimensions: Dimensions,
  theme: Themes,
  focused_id: usize,
@@ -147,11 +247,13 @@ pub struct WindowManager {
 //1 is up, 2 is down

 impl WindowManager {
-  pub fn new(writer: FramebufferWriter, framebuffer: Framebuffer, dimensions: Dimensions) -> Self {
+  pub fn new(writer: FramebufferWriter, framebuffer: Framebuffer, dimensions: Dimensions, rotate: bool) -> Self {
    let mut wm = WindowManager {
      writer: RefCell::new(writer),
+      rotate,
      id_count: 0,
      window_infos: Vec::new(),
+      osk: None,
      dimensions,
      theme: Themes::Standard,
      focused_id: 0,
@@ -169,10 +271,9 @@ impl WindowManager {
    let dimensions = dimensions.unwrap_or(window_like.ideal_dimensions(self.dimensions));
    self.id_count = self.id_count + 1;
    let id = self.id_count;
-    self.focused_id = id;
    window_like.handle_message(WindowMessage::Init(dimensions));
    let dimensions = if window_like.subtype() == WindowLikeType::Window { [dimensions[0], dimensions[1] + WINDOW_TOP_HEIGHT] } else { dimensions };
-    self.window_infos.push(WindowLikeInfo {
+    let window_info = WindowLikeInfo {
      id,
      window_like,
      top_left,
@@ -183,7 +284,13 @@ impl WindowManager {
        Workspace::All
      },
      fullscreen: false,
-    });
+    };
+    if subtype == WindowLikeType::OnscreenKeyboard {
+      self.osk = Some(window_info);
+    } else {
+      self.focused_id = id;
+      self.window_infos.push(window_info);
+    }
  }

  fn get_focused_index(&self) -> Option<usize> {
@@ -215,6 +322,7 @@ impl WindowManager {
  }

  //if off_only is true, also handle request
+  //written confusingly but it works I promise
  fn toggle_start_menu(&mut self, off_only: bool) -> WindowMessageResponse {
    let start_menu_exists = self.window_infos.iter().find(|w| w.window_like.subtype() == WindowLikeType::StartMenu).is_some();
    if (start_menu_exists && off_only) || !off_only {
@@ -518,22 +626,53 @@ impl WindowManager {
          },
        }
      },
-      //
+      WindowManagerMessage::Touch(x, y) => {
+        if x < 100 && y < 100 {
+          //toggle onscreen keyboard if top left keyboard clicked
+          if self.osk.is_some() {
+            self.osk = None;
+          } else {
+            let osk = Box::new(OnscreenKeyboard::new());
+            let ideal_dimensions = osk.ideal_dimensions(self.dimensions);
+            self.add_window_like(osk, [175, self.dimensions[1] - TASKBAR_HEIGHT - 250], Some(ideal_dimensions));
+          }
+          WindowMessageResponse::JustRedraw
+        } else {
+          //see if in onscreen keyboard, if so send to it after offsetting coords
+          if self.osk.is_some() {
+            let osk = self.osk.as_mut().unwrap();
+            if point_inside([x, y], osk.top_left, osk.dimensions) {
+              osk.window_like.handle_message(WindowMessage::Touch(x - osk.top_left[0], y - osk.top_left[1]))
+            } else {
+              WindowMessageResponse::DoNothing
+            }
+          } else {
+            WindowMessageResponse::DoNothing
+          }
+        }
+      }
    };
    if response != WindowMessageResponse::DoNothing {
+      let is_key_char_request = response.is_key_char_request();
      match response {
        WindowMessageResponse::Request(request) => self.handle_request(request),
        _ => {},
      };
-      self.draw(redraw_ids, use_saved_buffer);
+      if !is_key_char_request {
+        self.draw(redraw_ids, use_saved_buffer);
+      }
    }
  }
  
  pub fn handle_request(&mut self, request: WindowManagerRequest) {
-    let focused_index = self.get_focused_index().unwrap();
-    let subtype = self.window_infos[focused_index].window_like.subtype();
+    let subtype = if let Some(focused_index) = self.get_focused_index() {
+      Some(self.window_infos[focused_index].window_like.subtype())
+    } else {
+      None
+    };
    match request {
      WindowManagerRequest::OpenWindow(w) => {
+        let subtype = subtype.unwrap();
        if subtype != WindowLikeType::Taskbar && subtype != WindowLikeType::StartMenu {
          return;
        }
@@ -565,6 +704,7 @@ impl WindowManager {
        self.taskbar_update_windows();
      },
      WindowManagerRequest::CloseStartMenu => {
+        let subtype = subtype.unwrap();
        if subtype != WindowLikeType::Taskbar && subtype != WindowLikeType::StartMenu {
          return;
        }
@@ -574,13 +714,13 @@ impl WindowManager {
        }
      },
      WindowManagerRequest::Unlock => {
-        if subtype != WindowLikeType::LockScreen {
+        if subtype.unwrap() != WindowLikeType::LockScreen {
          return;
        }
        self.unlock();
      },
      WindowManagerRequest::Lock => {
-        if subtype != WindowLikeType::StartMenu {
+        if subtype.unwrap() != WindowLikeType::StartMenu {
          return;
        }
        self.lock();
@@ -588,6 +728,9 @@ impl WindowManager {
      WindowManagerRequest::ClipboardCopy(content) => {
        self.clipboard = Some(content);
      },
+      WindowManagerRequest::DoKeyChar(kc) => {
+        self.handle_message(WindowManagerMessage::KeyChar(kc));
+      },
    };
  }

@@ -605,12 +748,15 @@ impl WindowManager {
    }
    //get windows to redraw
    let redraw_ids = maybe_redraw_ids.unwrap_or(Vec::new());
-    let all_in_workspace = self.get_windows_in_workspace(true);
+    let mut all_in_workspace = self.get_windows_in_workspace(true);
+    if let Some(osk) = &self.osk {
+      all_in_workspace.push(osk);
+    }
    let maybe_length = all_in_workspace.len();
    let redraw_windows = all_in_workspace.iter().filter(|w| {
      //basically, maybe_redraw_ids was None
      if redraw_ids.len() > 0 {
-        redraw_ids.contains(&w.id)
+        redraw_ids.contains(&w.id) || w.window_like.subtype() == WindowLikeType::OnscreenKeyboard
      } else {
        true
      }
@@ -697,6 +843,9 @@ impl WindowManager {
      self.writer.borrow_mut().draw_buffer(window_info.top_left, window_dimensions[1], window_dimensions[0] * bytes_per_pixel, &window_writer.get_buffer());
      w_index += 1;
    }
-    self.framebuffer.write_frame(self.writer.borrow().get_buffer());
+    //could probably figure out a way to do borrow() when self.rotate is false but does it matter?
+    let mut writer_borrow = self.writer.borrow_mut();
+    let frame = if self.rotate { writer_borrow.get_transposed_buffer() } else { writer_borrow.get_buffer() };
+    self.framebuffer.write_frame(frame);
  }
 }
				`@@ -0,0 +1 @@`
				`This is primarily intended for mobile users.`