Add text input

src/async_io.rs

@@ -1,5 +1,6 @@
 use core::{cell::RefCell, char, marker::PhantomData};
 
+use alloc::vec;
 use alloc::{
     boxed::Box,
     collections::{btree_map::BTreeMap, btree_set::BTreeSet},
@@ -8,7 +9,6 @@ use alloc::{
     vec::Vec,
 };
 use critical_section::Mutex;
-use esp_hal::delay::Delay;
 
 use crate::at_commands::{ATCommand, ATParseError, ATResponseParser, SimpleATCommand};
 
@@ -54,16 +54,19 @@ impl Keypad {
         critical_section::with(|cs| {
             let mut was_pressed = self.was_pressed.borrow_ref_mut(cs);
             let mut is_pressed = self.is_pressed.borrow_ref_mut(cs);
-            let mut num_presses = self.presses.borrow_ref_mut(cs);
+            let mut num_presses = self.presses.borrow_ref(cs).clone();
 
             *was_pressed = is_pressed.clone();
             *is_pressed = presses;
             for button in is_pressed.iter() {
                 if !was_pressed.contains(button) {
                     let num = num_presses.get(button).copied().unwrap_or(0);
+                    log::info!("{:?}", *button);
                     num_presses.insert(*button, num + 1);
                 }
             }
+
+            *self.presses.borrow_ref_mut(cs) = num_presses;
         });
     }
 
@@ -103,17 +106,6 @@ impl Keypad {
     }
 }
 
-#[derive(Debug, Clone)]
-pub enum ConstructedATCommand {
-    /// Single-part command
-    Single(String),
-    /// Two-part AT-command
-    AddInfo(String, String),
-}
-
-unsafe impl Send for ConstructedATCommand {}
-unsafe impl Sync for ConstructedATCommand {}
-
 #[derive(Clone)]
 pub struct AsyncIO {
     at_command: Rc<Mutex<RefCell<Option<Box<dyn SimpleATCommand>>>>>,
@@ -240,3 +232,104 @@ impl NumberInput {
         &self.written
     }
 }
+
+impl KeypadButton {
+    pub fn get_chars(&self) -> Option<Vec<char>> {
+        match self {
+            KeypadButton::Keypad1 => Some(vec![' ', '1']),
+            KeypadButton::Keypad2 => Some(vec!['a', 'b', 'c', '2']),
+            KeypadButton::Keypad3 => Some(vec!['d', 'e', 'f', '3']),
+            KeypadButton::Keypad4 => Some(vec!['g', 'h', 'i', '4']),
+            KeypadButton::Keypad5 => Some(vec!['j', 'k', 'l', '5']),
+            KeypadButton::Keypad6 => Some(vec!['m', 'n', 'o', '6']),
+            KeypadButton::Keypad7 => Some(vec!['p', 'q', 'r', 's', '7']),
+            KeypadButton::Keypad8 => Some(vec!['t', 'u', 'v', '8']),
+            KeypadButton::Keypad9 => Some(vec!['w', 'x', 'y', 'z', '9']),
+            KeypadButton::Keypad0 => Some(vec![' ', '0']),
+            KeypadButton::KeypadStar => Some(vec!['*']),
+            KeypadButton::KeypadHash => Some(vec!['#']),
+            _ => None,
+        }
+    }
+}
+
+#[derive(Debug, Clone)]
+pub struct LastPressed {
+    key: KeypadButton,
+    idx: usize,
+}
+
+impl LastPressed {
+    pub fn increment(&mut self) {
+        let chars = self.key.get_chars();
+        if let Some(chars) = chars {
+            self.idx = (self.idx + 1) % chars.len()
+        }
+    }
+
+    pub fn get_char(&self) -> char {
+        self.key.get_chars().unwrap()[self.idx]
+    }
+}
+
+static TEXT_KEYS: [KeypadButton; 13] = [
+    KeypadButton::Keypad0,
+    KeypadButton::Keypad1,
+    KeypadButton::Keypad2,
+    KeypadButton::Keypad3,
+    KeypadButton::Keypad4,
+    KeypadButton::Keypad5,
+    KeypadButton::Keypad6,
+    KeypadButton::Keypad7,
+    KeypadButton::Keypad8,
+    KeypadButton::Keypad9,
+    KeypadButton::Keypad0,
+    KeypadButton::KeypadStar,
+    KeypadButton::KeypadHash,
+];
+
+#[derive(Debug, Default, Clone)]
+pub struct TextInput {
+    written: String,
+    last_pressed: Option<LastPressed>,
+}
+
+impl TextInput {
+    pub fn poll(&mut self, io: &mut AsyncIO) -> bool {
+        let mut wrote = false;
+        for button in io.keypad.just_pressed_buttons() {
+            if let Some(mut last_pressed) = self.last_pressed.take() {
+                if last_pressed.key == button {
+                    last_pressed.increment();
+                    self.last_pressed = Some(last_pressed);
+                    wrote = true;
+                } else if TEXT_KEYS.contains(&button) {
+                    self.written += &last_pressed.get_char().to_string();
+                    self.last_pressed = Some(LastPressed {
+                        key: button,
+                        idx: 0,
+                    });
+                    wrote = true;
+                } else if button == KeypadButton::KeypadA {
+                    self.written += &last_pressed.get_char().to_string();
+                    wrote = true;
+                }
+            } else if TEXT_KEYS.contains(&button) {
+                self.last_pressed = Some(LastPressed {
+                    key: button,
+                    idx: 0,
+                });
+                wrote = true;
+            }
+        }
+        wrote
+    }
+
+    pub fn read(&self) -> String {
+        let mut written = self.written.clone();
+        if let Some(last_pressed) = &self.last_pressed {
+            written += &last_pressed.get_char().to_string();
+        }
+        written
+    }
+}

src/at_commands.rs

@@ -4,8 +4,6 @@ use alloc::{borrow::ToOwned, format};
 use core::fmt::Write;
 use esp_hal::{Blocking, delay::Delay, gpio::Output, uart::Uart};
 
-use crate::async_io::ConstructedATCommand;
-
 static RESPONSES: [&'static str; 3] = ["OK", "ERROR", "DOWNLOAD"];
 
 pub struct ATCommands<'a, 'd> {

src/main.rs

@@ -256,10 +256,6 @@ fn thread_2_main(
             delay.delay_millis(5);
         }
 
-        if buttons_pressed.len() > 0 {
-            log::info!("{:?}", buttons_pressed)
-        }
-
         async_io.keypad.handle_presses(buttons_pressed);
     }
 }

src/states.rs

@@ -9,7 +9,7 @@ use alloc::{
 use esp_hal::time::{Duration, Instant};
 
 use crate::{
-    async_io::{ATPromise, KeypadButton, NumberInput},
+    async_io::{ATPromise, KeypadButton, NumberInput, TextInput},
     at_commands::{
         ATCommand, ATInformationCommand, ATParseError, CheckPinCommand, CheckPinResult,
         EnterPinCommand, EnterPinResult, SMSFormat, SelectSMSFormatCommand, SendSMSCommand,
@@ -307,13 +307,12 @@ impl State for PhoneNumberState {
 
 pub struct MessageState {
     number: String,
-    input: NumberInput,
+    input: TextInput,
 }
 
 impl State for MessageState {
     fn update(&mut self, data: &mut StateData) -> Option<Box<dyn State>> {
-        self.input.poll(&mut data.io);
-
+        if !self.input.poll(&mut data.io) {
             if data.io.keypad.get_presses(KeypadButton::KeypadA) > 0 {
                 Some(Box::new(ATCommandState::with(
                     "Sending SMS..".to_owned(),
@@ -339,6 +338,9 @@ impl State for MessageState {
             } else {
                 None
             }
+        } else {
+            None
+        }
     }
 
     fn draw(&self, data: &mut StateData) {