Fix csp causing blank screen in release mode

.github/workflows/ci.yml

@@ -16,6 +16,10 @@ jobs:
     runs-on: ${{ matrix.platform }}
     steps:
       - uses: actions/checkout@v2
+      - name: Install GNU tar
+        if: runner.os == 'macOS'
+        run: |
+          echo "/usr/local/opt/gnu-tar/libexec/gnubin" >> $GITHUB_PATH
       - name: Get yarn cache directory path
         id: yarn-cache-dir-path
         run: echo "::set-output name=dir::$(yarn cache dir)"
@@ -34,9 +38,9 @@ jobs:
             ~/.cargo/git
             ~/.cargo/bin
             desktop/src-tauri/target
-          key: ${{ matrix.platform }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+          key: ${{ matrix.platform }}-cargo-v2-${{ hashFiles('**/Cargo.lock') }}
           restore-keys: |
-            ${{ matrix.platform }}-cargo-
+            ${{ matrix.platform }}-cargo-v2-
       - name: setup node
         uses: actions/setup-node@v1
         with:
@@ -59,9 +63,14 @@ jobs:
           sudo apt-get install -y webkit2gtk-4.0 squashfs-tools
       - name: install app dependencies
         run: yarn
-      - uses: tauri-apps/tauri-action@v0
+      # https://github.com/tauri-apps/tauri-action/issues/162
+      - name: build app
+        run: cd desktop; yarn tauri:build
+      - name: fake yarn
+        run: node -e "eval(process.env.COMMAND)"
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          COMMAND: 'fs.writeFileSync("desktop/yarn.lock","")'
+      - uses: tauri-apps/tauri-action@v0
         with:
           npmScript: "tauri:build"
           projectPath: desktop/

.github/workflows/release.yml

@@ -13,6 +13,10 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
+      - name: Install GNU tar
+        if: runner.os == 'macOS'
+        run: |
+          echo "/usr/local/opt/gnu-tar/libexec/gnubin" >> $GITHUB_PATH
       - name: setup node
         uses: actions/setup-node@v1
         with:
@@ -58,9 +62,9 @@ jobs:
             ~/.cargo/git
             ~/.cargo/bin
             desktop/src-tauri/target
-          key: ${{ matrix.platform }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+          key: ${{ matrix.platform }}-cargo-v2-${{ hashFiles('**/Cargo.lock') }}
           restore-keys: |
-            ${{ matrix.platform }}-cargo-
+            ${{ matrix.platform }}-cargo-v2-
       - name: setup node
         uses: actions/setup-node@v1
         with:
@@ -102,7 +106,7 @@ jobs:
 
             const {repo: {owner, repo}, sha} = context;
             console.log({owner, repo, sha});
-            const {name, version} = require(`${process.env.GITHUB_WORKSPACE}/package.json`);
+            const {name, version} = require(`${process.env.GITHUB_WORKSPACE}/desktop/package.json`);
             const arch = process.arch === 'x64' ? 'amd64' : process.arch;
 
             await github.repos.uploadReleaseAsset({

desktop/.eslintrc.js

@@ -13,6 +13,7 @@ module.exports = {
   },
   rules: {
     'no-console': process.env.NODE_ENV === 'production' ? ['warn', { allow: ['warn', 'error'] }] : 'off',
-    'no-debugger': process.env.NODE_ENV === 'production' ? 'warn' : 'off'
+    'no-debugger': process.env.NODE_ENV === 'production' ? 'warn' : 'off',
+    '@typescript-eslint/explicit-module-boundary-types': 'off',
   }
 }

desktop/package.json

@@ -1,7 +1,7 @@
 {
   "name": "desktop",
   "description": "Free, cross-platform, CX-II compatible computer linking program for the TI-Nspire",
-  "version": "0.1.5",
+  "version": "0.1.6",
   "private": true,
   "scripts": {
     "lint": "vue-cli-service lint",
@@ -15,7 +15,7 @@
     "feather-icons": "^4.28.0",
     "filesize": "^6.1.0",
     "n-link-core": "0.0.0",
-    "tauri": "^0.12.0",
+    "@tauri-apps/api": "^1.0.0-beta.8",
     "vue": "^2.6.11",
     "vue-async-computed": "^3.9.0",
     "vue-class-component": "^7.2.3",
@@ -38,7 +38,7 @@
     "sass-loader": "^8.0.2",
     "typescript": "~4.0.3",
     "vue-cli-plugin-tailwind": "~1.5.0",
-    "vue-cli-plugin-tauri": "~0.12.1",
+    "vue-cli-plugin-tauri": "^1.0.0-beta.6",
     "vue-template-compiler": "^2.6.11"
   }
 }

desktop/src-tauri/.gitignore

@@ -8,3 +8,5 @@ WixTools
 
 config.json
 bundle.json
+
+/.cargo

desktop/src-tauri/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "n-link"
-version = "0.1.5"
+version = "0.1.6"
 description = "Free, cross-platform, CX-II compatible computer linking program for the TI-Nspire"
 authors = [ "Ben Schattinger <developer@lights0123.com>" ]
 license = "GPL-3.0"
@@ -16,19 +16,18 @@ libnspire = "0.2.2"
 lazy_static = "1.4.0"
 rusb = "0.6.4"
 serde = { version = "1.0", features = [ "derive" ] }
-tauri = { version = "0.9", features = [ "event", "notification", "open" ] }
+tauri = { version = "1.0.0-beta.8", features = ["dialog-open", "dialog-save", "notification-all", "shell-open"] }
-native-dialog = "0.4.3"
 clap = "3.0.0-beta.2"
-indicatif = "0.15.0"
+indicatif = "0.15"
 libusb1-sys = { version = "0.4.2", features = [ "vendored" ] }
-hashbrown = "0.9.0"
+hashbrown = "0.11"
 
-[target."cfg(windows)".build-dependencies]
+[build-dependencies]
-winres = "0.1"
+tauri-build = { version = "1.0.0-beta.4" }
 
 [features]
-embedded-server = [ "tauri/embedded-server" ]
+custom-protocol = [ "tauri/custom-protocol" ]
-no-server = [ "tauri/no-server" ]
+default = [ "custom-protocol" ]
 
 [[bin]]
 name = "n-link"

desktop/src-tauri/src/build.rs

@@ -1,16 +1,3 @@
-#[cfg(windows)]
-extern crate winres;
-
-#[cfg(windows)]
 fn main() {
-  if std::path::Path::new("icons/icon.ico").exists() {
+  tauri_build::build()
-    let mut res = winres::WindowsResource::new();
-    res.set_icon("icons/icon.ico");
-    res.compile().expect("Unable to find visual studio tools");
-  } else {
-    panic!("No Icon.ico found. Please add one or check the path");
-  }
 }
-
-#[cfg(not(windows))]
-fn main() {}

desktop/src-tauri/src/cli.rs

@@ -1,10 +1,11 @@
-use std::fs::File;
+use std::ffi::OsStr;
-use std::io::Read;
+use std::io::{Read, Write};
 use std::path::PathBuf;
+use std::{fs::File, path::Path};
 
 use clap::Clap;
 use indicatif::{ProgressBar, ProgressStyle};
-use libnspire::{PID, PID_CX2, VID};
+use libnspire::{dir::EntryType, PID, PID_CX2, VID};
 
 #[derive(Clap, Debug)]
 #[clap(author, about, version)]
@@ -16,9 +17,15 @@ struct Opt {
 #[derive(Clap, Debug)]
 enum SubCommand {
   Upload(Upload),
+  Download(Download),
+  UploadOS(UploadOS),
+  Copy(Copy),
+  Move(Move),
+  Mkdir(Mkdir),
+  Rmdir(Rmdir),
+  Ls(Ls),
   /// View license information
   License,
-  // Download(Download),
 }
 
 /// Upload files to the calculator
@@ -31,32 +38,101 @@ struct Upload {
   dest: String,
 }
 
-// /// Download files from the calculator
+/// Download files from the calculator
-// #[derive(Clap, Debug)]
+#[derive(Clap, Debug)]
-// struct Download {
+struct Download {
-//   /// Files to download
+  /// Files to download
-//   #[clap(required = true)]
+  #[clap(required = true)]
-//   files: Vec<String>,
+  files: Vec<String>,
-//   /// Destination path
+  /// Destination path
-//   #[clap(parse(from_os_str))]
+  #[clap(required = true, parse(from_os_str))]
-//   dest: PathBuf,
+  dest: PathBuf,
-// }
+}
+
+/// Upload and install a .tcc/.tco/.tcc2/.tco2/.tct2 OS file
+#[derive(Clap, Debug)]
+struct UploadOS {
+  /// Path to the OS file
+  #[clap(required = true, parse(from_os_str))]
+  file: PathBuf,
+
+  /// Disables the file extension check
+  #[clap(long)]
+  no_check_os: bool,
+}
+
+/// Copy a file to a different location
+#[derive(Clap, Debug)]
+struct Copy {
+  /// Path to file
+  #[clap(required = true)]
+  from_path: String,
+
+  /// Path to new location
+  #[clap(required = true)]
+  dist_path: String,
+}
+
+/// Move a file or directory to a new location
+#[derive(Clap, Debug)]
+struct Move {
+  /// Path to file
+  #[clap(required = true)]
+  from_path: String,
+
+  /// Path to new location
+  #[clap(required = true)]
+  dist_path: String,
+}
+
+/// Create a directory
+#[derive(Clap, Debug)]
+struct Mkdir {
+  /// Path to directory
+  #[clap(required = true)]
+  path: String,
+}
+
+/// Delete a directory
+#[derive(Clap, Debug)]
+struct Rmdir {
+  /// Path to directory
+  #[clap(required = true)]
+  path: String,
+}
+
+/// List the contents of a directory
+#[derive(Clap, Debug)]
+struct Ls {
+  /// Path to directory
+  #[clap(required = true)]
+  path: String,
+}
 
 fn get_dev() -> Option<libnspire::Handle<rusb::GlobalContext>> {
   rusb::devices()
     .unwrap()
     .iter()
-    .filter(|dev| {
+    .find(|dev| {
       let descriptor = match dev.device_descriptor() {
         Ok(d) => d,
         Err(_) => return false,
       };
       descriptor.vendor_id() == VID && matches!(descriptor.product_id(), PID | PID_CX2)
     })
-    .next()
     .map(|dev| libnspire::Handle::new(dev.open().unwrap()).unwrap())
 }
 
+pub fn cwd() -> PathBuf {
+  #[cfg(target_os = "linux")]
+  if std::env::var_os("APPIMAGE").is_some() && std::env::var_os("APPDIR").is_some() {
+    if let Some(cwd) = std::env::var_os("OWD") {
+      return cwd.into();
+    }
+  };
+  std::env::current_dir().expect("Couldn't get current directory")
+}
+
 pub fn run() -> bool {
   let opt: Opt = Opt::parse();
   if let Some(cmd) = opt.cmd {
@@ -65,25 +141,242 @@ pub fn run() -> bool {
         if let Some(handle) = get_dev() {
           for file in files {
             let mut buf = vec![];
-            File::open(&file).unwrap().read_to_end(&mut buf).unwrap();
+            File::open(cwd().join(&file))
+              .unwrap()
+              .read_to_end(&mut buf)
+              .unwrap();
             let name = file
               .file_name()
               .expect("Failed to get file name")
               .to_string_lossy()
               .to_string();
             let bar = ProgressBar::new(buf.len() as u64);
-            bar.set_style(ProgressStyle::default_bar().template("{spinner:.green} {msg}[{elapsed_precise}] [{bar:40.cyan/blue}] {bytes}/{total_bytes} ({bytes_per_sec}, {eta})"));
+            bar.set_style(ProgressStyle::default_bar().template("{spinner:.green} {msg} [{elapsed_precise}] [{bar:40.cyan/blue}] {bytes}/{total_bytes} ({bytes_per_sec}, {eta})"));
             bar.set_message(&format!("Upload {}", name));
             bar.enable_steady_tick(100);
             if dest.ends_with('/') {
               dest.remove(dest.len() - 1);
             }
-            handle
+            let res = handle.write_file(&format!("{}/{}", dest, name), &buf, &mut |remaining| {
-              .write_file(&format!("{}/{}", dest, name), &buf, &mut |remaining| {
+              bar.set_position((buf.len() - remaining) as u64)
-                bar.set_position((buf.len() - remaining) as u64)
+            });
-              })
+
-              .unwrap();
+            match res {
-            bar.finish();
+              Ok(_) => {
+                bar.finish_with_message(&format!("Upload {}: Ok", dest));
+              }
+              Err(error) => {
+                bar.abandon_with_message(&format!("Failed: {}", error));
+              }
+            }
+          }
+        } else {
+          eprintln!("Couldn't find any device");
+        }
+      }
+      SubCommand::Download(Download { dest, files }) => {
+        if let Some(handle) = get_dev() {
+          for file in files {
+            let attr = handle.file_attr(&file);
+            match attr {
+              Ok(attr) => {
+                let path = Path::new(&file);
+                let dest_path = Path::join(&dest, path.file_name().unwrap().to_str().unwrap());
+                match File::create(dest_path) {
+                  Ok(mut dest_file) => {
+                    let mut buf = vec![0u8; attr.size() as usize];
+
+                    let bar = ProgressBar::new(buf.len() as u64);
+                    bar.set_style(ProgressStyle::default_bar().template("{spinner:.green} {msg} [{elapsed_precise}] [{bar:40.cyan/blue}] {bytes}/{total_bytes} ({bytes_per_sec}, {eta})"));
+                    bar.set_message(&format!(
+                      "Download {}",
+                      path.file_name().unwrap().to_str().unwrap()
+                    ));
+                    bar.enable_steady_tick(100);
+
+                    let len = buf.len();
+
+                    let res = handle.read_file(&file, &mut buf, &mut |remaining| {
+                      bar.set_position((len - remaining) as u64);
+                    });
+
+                    match res {
+                      Ok(_) => {
+                        bar.set_message("Writing file to disk");
+
+                        match dest_file.write_all(&buf) {
+                          Ok(_) => {
+                            bar.finish_with_message("Transfer completed");
+                          }
+                          Err(error) => {
+                            bar.abandon_with_message(&format!(
+                              "Failed to write file to disk: {}",
+                              error
+                            ));
+                          }
+                        }
+                      }
+                      Err(error) => {
+                        bar.abandon_with_message(&format!("Failed to transfer file: {}", error))
+                      }
+                    }
+                  }
+                  Err(error) => {
+                    eprintln!("Failed to open destination file: {}", error);
+                  }
+                }
+              }
+              Err(error) => {
+                eprintln!("Failed to read file info: {}", error);
+              }
+            }
+          }
+        } else {
+          eprintln!("Couldn't find any device");
+        }
+      }
+      SubCommand::UploadOS(UploadOS { file, no_check_os }) => {
+        if let Some(handle) = get_dev() {
+          let calc_info = handle.info().expect("Failed to obtain device info");
+
+          let file_ext = file
+            .extension()
+            .unwrap_or(OsStr::new(""))
+            .to_string_lossy()
+            .to_string();
+
+          let mut buf = vec![];
+          let mut f = File::open(cwd().join(&file)).unwrap_or_else(|err| {
+            eprintln!("Failed to open file: {}", err);
+            std::process::exit(1);
+          });
+
+          if format!(".{}", file_ext) != calc_info.os_extension {
+            if no_check_os {
+              eprintln!(
+                "Warning: {} expects file of type {}",
+                calc_info.name, calc_info.os_extension
+              );
+            } else {
+              eprintln!(
+                "Error: {} expects file of type {}",
+                calc_info.name, calc_info.os_extension
+              );
+              eprintln!("Provide --no-check-os to bypass this check.");
+              std::process::exit(1);
+            }
+          }
+
+          f.read_to_end(&mut buf).unwrap();
+
+          let name = file
+            .file_name()
+            .expect("Failed to get file name")
+            .to_string_lossy()
+            .to_string();
+
+          let bar = ProgressBar::new(buf.len() as u64);
+          bar.set_style(ProgressStyle::default_bar().template("{spinner:.green} {msg} [{elapsed_precise}] [{bar:40.cyan/blue}] {bytes}/{total_bytes} ({bytes_per_sec}, {eta})"));
+          bar.set_message(&format!("Upload OS {}", name));
+          bar.enable_steady_tick(100);
+
+          let res = handle.send_os(&buf, &mut |remaining| {
+            bar.set_position((buf.len() - remaining) as u64);
+          });
+
+          match res {
+            Ok(_) => {
+              bar.finish();
+            }
+            Err(error) => {
+              bar.abandon_with_message(&format!("OS Upload failed: {}", error));
+            }
+          }
+        } else {
+          eprintln!("Couldn't find any device");
+        }
+      }
+      SubCommand::Copy(Copy {
+        from_path,
+        dist_path,
+      }) => {
+        if let Some(handle) = get_dev() {
+          match handle.copy_file(&from_path, &dist_path) {
+            Ok(_) => {
+              println!("Copy {} => {}: Ok", from_path, dist_path);
+            }
+            Err(error) => {
+              eprintln!("Failed to copy file or directory: {}", error);
+            }
+          }
+        } else {
+          eprintln!("Couldn't find any device");
+        }
+      }
+      SubCommand::Move(Move {
+        from_path,
+        dist_path,
+      }) => {
+        if let Some(handle) = get_dev() {
+          match handle.move_file(&from_path, &dist_path) {
+            Ok(_) => {
+              println!("Move {} => {}: Ok", from_path, dist_path);
+            }
+            Err(error) => {
+              eprintln!("Failed to move file or directory: {}", error);
+            }
+          }
+        } else {
+          eprintln!("Couldn't find any device");
+        }
+      }
+      SubCommand::Mkdir(Mkdir { path }) => {
+        if let Some(handle) = get_dev() {
+          match handle.create_dir(&path) {
+            Ok(_) => {
+              println!("Create {}: Ok", path);
+            }
+            Err(error) => {
+              eprintln!("Failed to create directory: {}", error);
+            }
+          }
+        } else {
+          eprintln!("Couldn't find any device");
+        }
+      }
+      SubCommand::Rmdir(Rmdir { path }) => {
+        if let Some(handle) = get_dev() {
+          match handle.delete_dir(&path) {
+            Ok(_) => {
+              println!("Remove {}: Ok", path);
+            }
+            Err(error) => {
+              eprintln!("Failed to delete directory: {}", error);
+            }
+          }
+        } else {
+          eprintln!("Couldn't find any device");
+        }
+      }
+      SubCommand::Ls(Ls { path }) => {
+        if let Some(handle) = get_dev() {
+          match handle.list_dir(&path) {
+            Ok(dir_list) => {
+              for item in dir_list.iter() {
+                println!(
+                  "{}{}",
+                  item.name().to_str().unwrap(),
+                  if item.entry_type() == EntryType::Directory {
+                    "/"
+                  } else {
+                    ""
+                  }
+                );
+              }
+            }
+            Err(error) => {
+              eprintln!("Failed to list directory: {}", error);
+            }
           }
         } else {
           eprintln!("Couldn't find any device");

desktop/src-tauri/src/cmd.rs

@@ -2,18 +2,12 @@ use std::sync::Arc;
 use std::time::Duration;
 
 use libnspire::{PID, PID_CX2, VID};
-use rusb::{DeviceHandle, Error, GlobalContext};
+use rusb::GlobalContext;
 use serde::{Deserialize, Serialize};
+use tauri::{Runtime, Window};
 
-use crate::{Device, DeviceState};
+use crate::{Device, DeviceState, SerializedError};
-use tauri::WebviewMut;
 
-#[derive(Debug, Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub struct Promise {
-  pub callback: String,
-  pub error: String,
-}
 #[derive(Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
 #[derive(Copy, Clone, Eq, PartialEq, Debug, Hash)]
@@ -21,131 +15,6 @@ pub struct DevId {
   pub bus_number: u8,
   pub address: u8,
 }
-#[derive(Debug, Deserialize)]
-#[serde(tag = "cmd", rename_all = "camelCase")]
-pub enum Cmd {
-  // your custom commands
-  // multiple arguments are allowed
-  // note that rename_all = "camelCase": you need to use "myCustomCommand" on JS
-  Enumerate {
-    #[serde(flatten)]
-    promise: Promise,
-  },
-  #[serde(rename_all = "camelCase")]
-  OpenDevice {
-    #[serde(flatten)]
-    promise: Promise,
-    #[serde(flatten)]
-    dev: DevId,
-  },
-  #[serde(rename_all = "camelCase")]
-  CloseDevice {
-    #[serde(flatten)]
-    promise: Promise,
-    #[serde(flatten)]
-    dev: DevId,
-  },
-  #[serde(rename_all = "camelCase")]
-  UpdateDevice {
-    #[serde(flatten)]
-    promise: Promise,
-    #[serde(flatten)]
-    dev: DevId,
-  },
-  #[serde(rename_all = "camelCase")]
-  ListDir {
-    #[serde(flatten)]
-    promise: Promise,
-    #[serde(flatten)]
-    dev: DevId,
-    path: String,
-  },
-  #[serde(rename_all = "camelCase")]
-  DownloadFile {
-    #[serde(flatten)]
-    promise: Promise,
-    #[serde(flatten)]
-    dev: DevId,
-    path: (String, u64),
-    dest: String,
-  },
-  #[serde(rename_all = "camelCase")]
-  UploadFile {
-    #[serde(flatten)]
-    promise: Promise,
-    #[serde(flatten)]
-    dev: DevId,
-    path: String,
-    src: String,
-  },
-  #[serde(rename_all = "camelCase")]
-  UploadOs {
-    #[serde(flatten)]
-    promise: Promise,
-    #[serde(flatten)]
-    dev: DevId,
-    src: String,
-  },
-  #[serde(rename_all = "camelCase")]
-  DeleteFile {
-    #[serde(flatten)]
-    promise: Promise,
-    #[serde(flatten)]
-    dev: DevId,
-    path: String,
-  },
-  #[serde(rename_all = "camelCase")]
-  DeleteDir {
-    #[serde(flatten)]
-    promise: Promise,
-    #[serde(flatten)]
-    dev: DevId,
-    path: String,
-  },
-  #[serde(rename_all = "camelCase")]
-  CreateNspireDir {
-    #[serde(flatten)]
-    promise: Promise,
-    #[serde(flatten)]
-    dev: DevId,
-    path: String,
-  },
-  #[serde(rename_all = "camelCase")]
-  Move {
-    #[serde(flatten)]
-    promise: Promise,
-    #[serde(flatten)]
-    dev: DevId,
-    src: String,
-    dest: String,
-  },
-  #[serde(rename_all = "camelCase")]
-  Copy {
-    #[serde(flatten)]
-    promise: Promise,
-    #[serde(flatten)]
-    dev: DevId,
-    src: String,
-    dest: String,
-  },
-  #[serde(rename_all = "camelCase")]
-  SelectFile {
-    #[serde(flatten)]
-    promise: Promise,
-    filter: Vec<String>,
-  },
-  #[serde(rename_all = "camelCase")]
-  SelectFiles {
-    #[serde(flatten)]
-    promise: Promise,
-    filter: Vec<String>,
-  },
-  #[serde(rename_all = "camelCase")]
-  SelectFolder {
-    #[serde(flatten)]
-    promise: Promise,
-  },
-}
 
 pub fn add_device(dev: Arc<rusb::Device<GlobalContext>>) -> rusb::Result<((u8, u8), Device)> {
   let descriptor = dev.device_descriptor()?;
@@ -162,7 +31,7 @@ pub fn add_device(dev: Arc<rusb::Device<GlobalContext>>) -> rusb::Result<((u8, u
       )?,
       false,
     ),
-    Err(rusb::Error::NotSupported) => (
+    Err(rusb::Error::NotSupported) | Err(rusb::Error::Access) => (
       if descriptor.product_id() == PID_CX2 {
         "TI-Nspire CX II"
       } else {
@@ -185,7 +54,8 @@ pub fn add_device(dev: Arc<rusb::Device<GlobalContext>>) -> rusb::Result<((u8, u
   ))
 }
 
-pub fn enumerate(handle: &mut WebviewMut) -> Result<Vec<AddDevice>, libnspire::Error> {
+#[tauri::command]
+pub fn enumerate<R: Runtime>(handle: Window<R>) -> Result<Vec<AddDevice>, SerializedError> {
   let devices: Vec<_> = rusb::devices()?.iter().collect();
   let mut map = crate::DEVICES.write().unwrap();
   map
@@ -195,13 +65,12 @@ pub fn enumerate(handle: &mut WebviewMut) -> Result<Vec<AddDevice>, libnspire::E
         .all(|d| d.bus_number() != k.0 || d.address() != k.1)
     })
     .for_each(|d| {
-      if let Err(msg) = tauri::event::emit(
+      if let Err(msg) = handle.emit(
-        handle,
         "removeDevice",
-        Some(DevId {
+        DevId {
           bus_number: (d.0).0,
           address: (d.0).1,
-        }),
+        },
       ) {
         eprintln!("{}", msg);
       }

desktop/src-tauri/src/main.rs

@@ -3,25 +3,20 @@
   windows_subsystem = "windows"
 )]
 
-use hashbrown::HashMap;
+use std::sync::atomic::{AtomicBool, Ordering};
-use std::fs::File;
-use std::io::{Read, Write};
-use std::path::PathBuf;
 use std::sync::{Arc, Mutex, RwLock};
 use std::time::Duration;
 
-use libnspire::dir::EntryType;
+use hashbrown::HashMap;
 use libnspire::{PID_CX2, VID};
-use native_dialog::Dialog;
 use rusb::{GlobalContext, Hotplug, UsbContext};
-use tauri::WebviewMut;
+use serde::Serialize;
+use tauri::{Runtime, Window};
 
-use crate::cmd::{add_device, AddDevice, DevId, FileInfo, ProgressUpdate};
+use crate::cmd::{add_device, AddDevice, DevId, ProgressUpdate};
-use crate::promise::promise_fn;
 
 mod cli;
 mod cmd;
-mod promise;
 
 pub enum DeviceState {
   Open(
@@ -40,13 +35,13 @@ pub struct Device {
 lazy_static::lazy_static! {
   static ref DEVICES: RwLock<HashMap<(u8, u8), Device>> = RwLock::new(HashMap::new());
 }
-struct DeviceMon {
+struct DeviceMon<R: Runtime> {
-  handle: WebviewMut,
+  window: Window<R>,
 }
 
-impl Hotplug<GlobalContext> for DeviceMon {
+impl<R: Runtime> Hotplug<GlobalContext> for DeviceMon<R> {
   fn device_arrived(&mut self, device: rusb::Device<GlobalContext>) {
-    let mut handle = self.handle.clone();
+    let handle = self.window.clone();
     let is_cx_ii = device
       .device_descriptor()
       .map(|d| d.product_id() == PID_CX2)
@@ -58,10 +53,9 @@ impl Hotplug<GlobalContext> for DeviceMon {
           let name = (dev.1).name.clone();
           let needs_drivers = (dev.1).needs_drivers;
           DEVICES.write().unwrap().insert(dev.0, dev.1);
-          if let Err(msg) = tauri::event::emit(
+          if let Err(msg) = handle.emit(
-            &mut handle,
             "addDevice",
-            Some(AddDevice {
+            AddDevice {
               dev: DevId {
                 bus_number: (dev.0).0,
                 address: (dev.0).1,
@@ -69,7 +63,7 @@ impl Hotplug<GlobalContext> for DeviceMon {
               name,
               is_cx_ii,
               needs_drivers,
-            }),
+            },
           ) {
             eprintln!("{}", msg);
           };
@@ -93,13 +87,12 @@ impl Hotplug<GlobalContext> for DeviceMon {
       .unwrap()
       .remove_entry(&(device.bus_number(), device.address()))
     {
-      if let Err(msg) = tauri::event::emit(
+      if let Err(msg) = self.window.emit(
-        &mut self.handle,
         "removeDevice",
-        Some(DevId {
+        DevId {
           bus_number: dev.0,
           address: dev.1,
-        }),
+        },
       ) {
         eprintln!("{}", msg);
       };
@@ -107,42 +100,41 @@ impl Hotplug<GlobalContext> for DeviceMon {
   }
 }
 
-fn err_wrap<T>(
+fn err_wrap<T, R: Runtime>(
   res: Result<T, libnspire::Error>,
   dev: DevId,
-  handle: &mut WebviewMut,
+  window: &Window<R>,
 ) -> Result<T, libnspire::Error> {
   if let Err(libnspire::Error::NoDevice) = res {
     DEVICES
       .write()
       .unwrap()
       .remove(&(dev.bus_number, dev.address));
-    if let Err(msg) = tauri::event::emit(handle, "removeDevice", Some(dev)) {
+    if let Err(msg) = window.emit("removeDevice", dev) {
       eprintln!("{}", msg);
     };
   }
   res
 }
 
-fn progress_sender<'a>(
+fn progress_sender<R: Runtime>(
-  handle: &'a mut WebviewMut,
+  window: &Window<R>,
   dev: DevId,
   total: usize,
-) -> impl FnMut(usize) + 'a {
+) -> impl FnMut(usize) + '_ {
   let mut i = 0;
   move |remaining| {
     if i > 5 {
       i = 0;
     }
     if i == 0 || remaining == 0 {
-      if let Err(msg) = tauri::event::emit(
+      if let Err(msg) = window.emit(
-        handle,
         "progress",
-        Some(ProgressUpdate {
+        ProgressUpdate {
           dev,
           remaining,
           total,
-        }),
+        },
       ) {
         eprintln!("{}", msg);
       };
@@ -164,321 +156,323 @@ fn get_open_dev(
   }
 }
 
+#[derive(Serialize)]
+pub struct SerializedError(String);
+
+impl<T: std::fmt::Display> From<T> for SerializedError {
+  fn from(f: T) -> Self {
+    SerializedError(f.to_string())
+  }
+}
+
+mod invoked {
+  use std::fs::File;
+  use std::io::{Read, Write};
+  use std::path::PathBuf;
+  use std::sync::{Arc, Mutex};
+
+  use libnspire::dir::EntryType;
+  use serde::Serialize;
+  use tauri::{Runtime, Window};
+
+  use crate::cmd::{DevId, FileInfo};
+  use crate::{err_wrap, get_open_dev, progress_sender, DeviceState, SerializedError};
+
+  use super::DEVICES;
+
+  #[tauri::command]
+  pub fn open_device(bus_number: u8, address: u8) -> Result<impl Serialize, SerializedError> {
+    let device = if let Some(dev) = DEVICES.read().unwrap().get(&(bus_number, address)) {
+      if !matches!(dev.state, DeviceState::Closed) {
+        return Err("Already open".into());
+      };
+      dev.device.clone()
+    } else {
+      return Err("Failed to find device".into());
+    };
+    let handle = libnspire::Handle::new(device.open()?)?;
+    let info = handle.info()?;
+    {
+      let mut guard = DEVICES.write().unwrap();
+      let device = guard
+        .get_mut(&(bus_number, address))
+        .ok_or_else(|| anyhow::anyhow!("Device lost"))?;
+      device.state = DeviceState::Open(Arc::new(Mutex::new(handle)), info.clone());
+    }
+    Ok(info)
+  }
+
+  #[tauri::command]
+  pub fn close_device(bus_number: u8, address: u8) -> Result<impl Serialize, SerializedError> {
+    let mut guard = DEVICES.write().unwrap();
+    let device = guard
+      .get_mut(&(bus_number, address))
+      .ok_or_else(|| anyhow::anyhow!("Device lost"))?;
+    device.state = DeviceState::Closed;
+    Ok(())
+  }
+
+  #[tauri::command]
+  pub fn update_device<R: Runtime>(
+    bus_number: u8,
+    address: u8,
+    window: Window<R>,
+  ) -> Result<impl Serialize, SerializedError> {
+    let dev = DevId {
+      bus_number,
+      address,
+    };
+    let handle = get_open_dev(&dev)?;
+    let handle = handle.lock().unwrap();
+    let info = err_wrap(handle.info(), dev, &window)?;
+    Ok(info)
+  }
+
+  #[tauri::command]
+  pub fn list_dir<R: Runtime>(
+    bus_number: u8,
+    address: u8,
+    path: String,
+    window: Window<R>,
+  ) -> Result<impl Serialize, SerializedError> {
+    let dev = DevId {
+      bus_number,
+      address,
+    };
+    let handle = get_open_dev(&dev)?;
+    let handle = handle.lock().unwrap();
+    let dir = err_wrap(handle.list_dir(&path), dev, &window)?;
+
+    Ok(
+      dir
+        .iter()
+        .map(|file| FileInfo {
+          path: file.name().to_string_lossy().to_string(),
+          is_dir: file.entry_type() == EntryType::Directory,
+          date: file.date(),
+          size: file.size(),
+        })
+        .collect::<Vec<_>>(),
+    )
+  }
+
+  #[tauri::command]
+  pub fn download_file<R: Runtime>(
+    bus_number: u8,
+    address: u8,
+    path: (String, u64),
+    dest: String,
+    window: Window<R>,
+  ) -> Result<impl Serialize, SerializedError> {
+    let dev = DevId {
+      bus_number,
+      address,
+    };
+    let (file, size) = path;
+    let dest = PathBuf::from(dest);
+    let handle = get_open_dev(&dev)?;
+    let handle = handle.lock().unwrap();
+    let mut buf = vec![0; size as usize];
+    err_wrap(
+      handle.read_file(
+        &file,
+        &mut buf,
+        &mut progress_sender(&window, dev, size as usize),
+      ),
+      dev,
+      &window,
+    )?;
+    if let Some(name) = file.split('/').last() {
+      File::create(dest.join(name))?.write_all(&buf)?;
+    }
+    Ok(())
+  }
+
+  #[tauri::command]
+  pub fn upload_file<R: Runtime>(
+    bus_number: u8,
+    address: u8,
+    path: String,
+    src: String,
+    window: Window<R>,
+  ) -> Result<impl Serialize, SerializedError> {
+    let dev = DevId {
+      bus_number,
+      address,
+    };
+    let file = PathBuf::from(src);
+    let handle = get_open_dev(&dev)?;
+    let handle = handle.lock().unwrap();
+    let mut buf = vec![];
+    File::open(&file)?.read_to_end(&mut buf)?;
+    let name = file
+      .file_name()
+      .ok_or_else(|| anyhow::anyhow!("Failed to get file name"))?
+      .to_string_lossy()
+      .to_string();
+    err_wrap(
+      handle.write_file(
+        &format!("{}/{}", path, name),
+        &buf,
+        &mut progress_sender(&window, dev, buf.len()),
+      ),
+      dev,
+      &window,
+    )?;
+    Ok(())
+  }
+
+  #[tauri::command]
+  pub fn upload_os<R: Runtime>(
+    bus_number: u8,
+    address: u8,
+    src: String,
+    window: Window<R>,
+  ) -> Result<impl Serialize, SerializedError> {
+    let dev = DevId {
+      bus_number,
+      address,
+    };
+    let handle = get_open_dev(&dev)?;
+    let handle = handle.lock().unwrap();
+    let mut buf = vec![];
+    File::open(&src)?.read_to_end(&mut buf)?;
+    err_wrap(
+      handle.send_os(&buf, &mut progress_sender(&window, dev, buf.len())),
+      dev,
+      &window,
+    )?;
+    Ok(())
+  }
+
+  #[tauri::command]
+  pub fn delete_file<R: Runtime>(
+    bus_number: u8,
+    address: u8,
+    path: String,
+    window: Window<R>,
+  ) -> Result<impl Serialize, SerializedError> {
+    let dev = DevId {
+      bus_number,
+      address,
+    };
+    let handle = get_open_dev(&dev)?;
+    let handle = handle.lock().unwrap();
+    err_wrap(handle.delete_file(&path), dev, &window)?;
+    Ok(())
+  }
+
+  #[tauri::command]
+  pub fn delete_dir<R: Runtime>(
+    bus_number: u8,
+    address: u8,
+    path: String,
+    window: Window<R>,
+  ) -> Result<impl Serialize, SerializedError> {
+    let dev = DevId {
+      bus_number,
+      address,
+    };
+    let handle = get_open_dev(&dev)?;
+    let handle = handle.lock().unwrap();
+    err_wrap(handle.delete_dir(&path), dev, &window)?;
+    Ok(())
+  }
+
+  #[tauri::command]
+  pub fn create_nspire_dir<R: Runtime>(
+    bus_number: u8,
+    address: u8,
+    path: String,
+    window: Window<R>,
+  ) -> Result<impl Serialize, SerializedError> {
+    let dev = DevId {
+      bus_number,
+      address,
+    };
+    let handle = get_open_dev(&dev)?;
+    let handle = handle.lock().unwrap();
+    err_wrap(handle.create_dir(&path), dev, &window)?;
+    Ok(())
+  }
+
+  #[tauri::command]
+  pub fn move_file<R: Runtime>(
+    bus_number: u8,
+    address: u8,
+    src: String,
+    dest: String,
+    window: Window<R>,
+  ) -> Result<impl Serialize, SerializedError> {
+    let dev = DevId {
+      bus_number,
+      address,
+    };
+    let handle = get_open_dev(&dev)?;
+    let handle = handle.lock().unwrap();
+    err_wrap(handle.move_file(&src, &dest), dev, &window)?;
+    Ok(())
+  }
+
+  #[tauri::command]
+  pub fn copy<R: Runtime>(
+    bus_number: u8,
+    address: u8,
+    src: String,
+    dest: String,
+    window: Window<R>,
+  ) -> Result<impl Serialize, SerializedError> {
+    let dev = DevId {
+      bus_number,
+      address,
+    };
+    let handle = get_open_dev(&dev)?;
+    let handle = handle.lock().unwrap();
+    err_wrap(handle.copy_file(&src, &dest), dev, &window)?;
+    Ok(())
+  }
+}
+
 fn main() {
   if cli::run() {
     return;
   }
-  let mut has_registered_callback = false;
+  let has_registered_callback = AtomicBool::new(false);
-  tauri::AppBuilder::new()
+  tauri::Builder::default()
-    .invoke_handler(move |webview, arg| {
+    .on_page_load(move |window, _p| {
-      use cmd::Cmd::*;
+      if !has_registered_callback.swap(true, Ordering::SeqCst) {
-      match serde_json::from_str(arg) {
+        if rusb::has_hotplug() {
-        Err(e) => Err(e.to_string()),
+          if let Err(msg) = GlobalContext::default().register_callback(
-        Ok(command) => {
+            Some(VID),
-          let mut wv_handle = webview.as_mut();
+            None,
-          match command {
+            None,
-            Enumerate { promise } => {
+            Box::new(DeviceMon { window }),
-              if !has_registered_callback {
+          ) {
-                has_registered_callback = true;
+            eprintln!("{}", msg);
-                if rusb::has_hotplug() {
+          };
-                  if let Err(msg) = GlobalContext::default().register_callback(
+          std::thread::spawn(|| loop {
-                    Some(VID),
+            GlobalContext::default().handle_events(None).unwrap();
-                    None,
+          });
-                    None,
+        } else {
-                    Box::new(DeviceMon {
+          println!("no hotplug");
-                      handle: webview.as_mut(),
-                    }),
-                  ) {
-                    eprintln!("{}", msg);
-                  };
-                  std::thread::spawn(|| loop {
-                    GlobalContext::default().handle_events(None).unwrap();
-                  });
-                } else {
-                  println!("no hotplug");
-                }
-              }
-              promise_fn(
-                webview,
-                move || Ok(cmd::enumerate(&mut wv_handle)?),
-                promise,
-              );
-            }
-            OpenDevice { promise, dev } => {
-              promise_fn(
-                webview,
-                move || {
-                  let device = if let Some(dev) =
-                    DEVICES.read().unwrap().get(&(dev.bus_number, dev.address))
-                  {
-                    anyhow::ensure!(matches!(dev.state, DeviceState::Closed), "Already open");
-                    dev.device.clone()
-                  } else {
-                    anyhow::bail!("Failed to find device");
-                  };
-                  let handle = libnspire::Handle::new(device.open()?)?;
-                  let info = handle.info()?;
-                  {
-                    let mut guard = DEVICES.write().unwrap();
-                    let device = guard
-                      .get_mut(&(dev.bus_number, dev.address))
-                      .ok_or_else(|| anyhow::anyhow!("Device lost"))?;
-                    device.state = DeviceState::Open(Arc::new(Mutex::new(handle)), info.clone());
-                  }
-                  Ok(info)
-                },
-                promise,
-              );
-            }
-            CloseDevice { promise, dev } => {
-              promise_fn(
-                webview,
-                move || {
-                  {
-                    let mut guard = DEVICES.write().unwrap();
-                    let device = guard
-                      .get_mut(&(dev.bus_number, dev.address))
-                      .ok_or_else(|| anyhow::anyhow!("Device lost"))?;
-                    device.state = DeviceState::Closed;
-                  }
-                  Ok(())
-                },
-                promise,
-              );
-            }
-            UpdateDevice { promise, dev } => {
-              promise_fn(
-                webview,
-                move || {
-                  let handle = get_open_dev(&dev)?;
-                  let handle = handle.lock().unwrap();
-                  let info = err_wrap(handle.info(), dev, &mut wv_handle)?;
-                  Ok(info)
-                },
-                promise,
-              );
-            }
-            ListDir { promise, dev, path } => {
-              promise_fn(
-                webview,
-                move || {
-                  let handle = get_open_dev(&dev)?;
-                  let handle = handle.lock().unwrap();
-                  let dir = err_wrap(handle.list_dir(&path), dev, &mut wv_handle)?;
-
-                  Ok(
-                    dir
-                      .iter()
-                      .map(|file| FileInfo {
-                        path: file.name().to_string_lossy().to_string(),
-                        is_dir: file.entry_type() == EntryType::Directory,
-                        date: file.date(),
-                        size: file.size(),
-                      })
-                      .collect::<Vec<_>>(),
-                  )
-                },
-                promise,
-              );
-            }
-            DownloadFile {
-              promise,
-              dev,
-              path: (file, size),
-              dest,
-            } => {
-              promise_fn(
-                webview,
-                move || {
-                  let dest = PathBuf::from(dest);
-                  let handle = get_open_dev(&dev)?;
-                  let handle = handle.lock().unwrap();
-                  let mut buf = vec![0; size as usize];
-                  err_wrap(
-                    handle.read_file(
-                      &file,
-                      &mut buf,
-                      &mut progress_sender(&mut wv_handle.clone(), dev, size as usize),
-                    ),
-                    dev,
-                    &mut wv_handle,
-                  )?;
-                  if let Some(name) = file.split('/').last() {
-                    File::create(dest.join(name))?.write_all(&buf)?;
-                  }
-                  Ok(())
-                },
-                promise,
-              );
-            }
-            UploadFile {
-              promise,
-              dev,
-              path,
-              src,
-            } => {
-              promise_fn(
-                webview,
-                move || {
-                  let file = PathBuf::from(src);
-                  let handle = get_open_dev(&dev)?;
-                  let handle = handle.lock().unwrap();
-                  let mut buf = vec![];
-                  File::open(&file)?.read_to_end(&mut buf)?;
-                  let name = file
-                    .file_name()
-                    .ok_or_else(|| anyhow::anyhow!("Failed to get file name"))?
-                    .to_string_lossy()
-                    .to_string();
-                  err_wrap(
-                    handle.write_file(
-                      &format!("{}/{}", path, name),
-                      &buf,
-                      &mut progress_sender(&mut wv_handle.clone(), dev, buf.len()),
-                    ),
-                    dev,
-                    &mut wv_handle,
-                  )?;
-                  Ok(())
-                },
-                promise,
-              );
-            }
-            UploadOs { promise, dev, src } => {
-              promise_fn(
-                webview,
-                move || {
-                  let handle = get_open_dev(&dev)?;
-                  let handle = handle.lock().unwrap();
-                  let mut buf = vec![];
-                  File::open(&src)?.read_to_end(&mut buf)?;
-                  err_wrap(
-                    handle.send_os(
-                      &buf,
-                      &mut progress_sender(&mut wv_handle.clone(), dev, buf.len()),
-                    ),
-                    dev,
-                    &mut wv_handle,
-                  )?;
-                  Ok(())
-                },
-                promise,
-              );
-            }
-            DeleteFile { promise, dev, path } => {
-              promise_fn(
-                webview,
-                move || {
-                  let handle = get_open_dev(&dev)?;
-                  let handle = handle.lock().unwrap();
-                  err_wrap(handle.delete_file(&path), dev, &mut wv_handle)?;
-                  Ok(())
-                },
-                promise,
-              );
-            }
-            DeleteDir { promise, dev, path } => {
-              promise_fn(
-                webview,
-                move || {
-                  let handle = get_open_dev(&dev)?;
-                  let handle = handle.lock().unwrap();
-                  err_wrap(handle.delete_dir(&path), dev, &mut wv_handle)?;
-                  Ok(())
-                },
-                promise,
-              );
-            }
-            CreateNspireDir { promise, dev, path } => {
-              promise_fn(
-                webview,
-                move || {
-                  let handle = get_open_dev(&dev)?;
-                  let handle = handle.lock().unwrap();
-                  err_wrap(handle.create_dir(&path), dev, &mut wv_handle)?;
-                  Ok(())
-                },
-                promise,
-              );
-            }
-            Move {
-              promise,
-              dev,
-              src,
-              dest,
-            } => {
-              promise_fn(
-                webview,
-                move || {
-                  let handle = get_open_dev(&dev)?;
-                  let handle = handle.lock().unwrap();
-                  err_wrap(handle.move_file(&src, &dest), dev, &mut wv_handle)?;
-                  Ok(())
-                },
-                promise,
-              );
-            }
-            Copy {
-              promise,
-              dev,
-              src,
-              dest,
-            } => {
-              promise_fn(
-                webview,
-                move || {
-                  let handle = get_open_dev(&dev)?;
-                  let handle = handle.lock().unwrap();
-                  err_wrap(handle.copy_file(&src, &dest), dev, &mut wv_handle)?;
-                  Ok(())
-                },
-                promise,
-              );
-            }
-            SelectFile { promise, filter } => {
-              promise_fn(
-                webview,
-                move || {
-                  let filter = filter.iter().map(|t| t.as_str()).collect::<Vec<_>>();
-                  Ok(
-                    (native_dialog::OpenSingleFile {
-                      filter: Some(&filter),
-                      dir: None,
-                    })
-                    .show()?,
-                  )
-                },
-                promise,
-              );
-            }
-            SelectFiles { promise, filter } => {
-              promise_fn(
-                webview,
-                move || {
-                  let filter = filter.iter().map(|t| t.as_str()).collect::<Vec<_>>();
-                  Ok(
-                    (native_dialog::OpenMultipleFile {
-                      filter: Some(&filter),
-                      dir: None,
-                    })
-                    .show()?,
-                  )
-                },
-                promise,
-              );
-            }
-            SelectFolder { promise } => {
-              promise_fn(
-                webview,
-                move || Ok((native_dialog::OpenSingleDir { dir: None }).show()?),
-                promise,
-              );
-            }
-          }
-          Ok(())
         }
       }
     })
-    .build()
+    .invoke_handler(tauri::generate_handler![
-    .run();
+      cmd::enumerate,
+      invoked::open_device,
+      invoked::close_device,
+      invoked::update_device,
+      invoked::list_dir,
+      invoked::download_file,
+      invoked::upload_file,
+      invoked::upload_os,
+      invoked::delete_file,
+      invoked::delete_dir,
+      invoked::create_nspire_dir,
+      invoked::move_file,
+      invoked::copy,
+    ])
+    .run(tauri::generate_context!())
+    .expect("error while running tauri application");
 }

desktop/src-tauri/src/promise.rs

@@ -1,28 +0,0 @@
-use crate::cmd::Promise;
-use serde::Serialize;
-use tauri::api::rpc::{format_callback, format_callback_result};
-use tauri::Webview;
-
-pub fn promise_fn<R: Serialize, F: FnOnce() -> tauri::Result<R> + Send + 'static>(
-  webview: &mut Webview<'_>,
-  task: F,
-  Promise {
-    callback: success_callback,
-    error: error_callback,
-  }: Promise,
-) {
-  let mut webview = webview.as_mut();
-  std::thread::spawn(move || {
-    let callback_string = match format_callback_result(
-      task().map_err(|err| err.to_string()),
-      success_callback,
-      error_callback.clone(),
-    ) {
-      Ok(callback_string) => callback_string,
-      Err(e) => format_callback(error_callback, e.to_string()),
-    };
-    webview
-      .dispatch(move |webview_ref| webview_ref.eval(callback_string.as_str()))
-      .expect("Failed to dispatch promise callback");
-  });
-}

desktop/src-tauri/tauri.conf.json

@@ -1,9 +1,5 @@
 {
-  "ctx": {},
   "tauri": {
-    "embeddedServer": {
-      "active": true
-    },
     "bundle": {
       "active": true,
       "targets": ["deb", "msi", "appimage", "dmg"],
@@ -17,34 +13,46 @@
       ],
       "resources": [],
       "externalBin": [],
-      "copyright": "Copyright (c) 2020 Ben Schattinger. Licensed under GPL-3.0",
+      "copyright": "Copyright (c) 2021 Ben Schattinger. Licensed under GPL-3.0",
       "category": "Utility",
       "shortDescription": "Free, cross-platform, CX-II compatible computer linking program for the TI-Nspire",
       "longDescription": "Free, cross-platform, CX-II compatible computer linking program for the TI-Nspire",
-      "osx": {
+      "macOS": {
         "frameworks": [],
         "minimumSystemVersion": "",
-        "useBootstrapper": false
+        "useBootstrapper": false,
+        "exceptionDomain": "",
+        "signingIdentity": null,
+        "entitlements": null
       },
-      "exceptionDomain": ""
+      "windows": {
+        "certificateThumbprint": null,
+        "digestAlgorithm": "sha256",
+        "timestampUrl": ""
+      }
+    },
+    "updater": {
+      "active": false
     },
     "allowlist": {
-      "event": true,
+      "shell": {
-      "notification": true,
+        "open": true
-      "open": true
+      },
-    },
+      "dialog": {
-    "window": {
+        "open": true
-      "title": "N-Link",
+      }
-      "width": 800,
-      "height": 600,
-      "resizable": true,
-      "fullscreen": false
     },
+    "windows": [
+      {
+        "title": "N-Link",
+        "width": 800,
+        "height": 600,
+        "resizable": true,
+        "fullscreen": false
+      }
+    ],
     "security": {
-      "csp": "default-src blob: data: filesystem: ws: http: https: 'unsafe-eval' 'unsafe-inline'"
+      "csp": "default-src blob: data: filesystem: ws: wss: http: https: tauri: 'unsafe-eval' 'unsafe-inline' 'self' img-src: 'self'"
-    },
-    "inliner": {
-      "active": true
     }
   }
 }

desktop/src/components/devices.ts

@@ -1,5 +1,6 @@
-import {promisified} from 'tauri/api/tauri';
+import {invoke} from '@tauri-apps/api/tauri';
-import {listen} from 'tauri/api/event';
+import {listen} from '@tauri-apps/api/event';
+import {open as openDialog} from '@tauri-apps/api/dialog';
 import {Component, Vue} from 'vue-property-decorator';
 import type {GenericDevices} from 'n-link-core/components/devices';
 
@@ -55,47 +56,47 @@ export type Device = { name: string; isCxIi: boolean; needsDrivers: boolean; inf
 
 async function downloadFile(dev: DevId | string, path: [string, number], dest: string) {
     if (typeof dev === 'string') dev = stringToDev(dev);
-    await promisified({...dev, cmd: 'downloadFile', path, dest});
+    await invoke('download_file', {...dev, path, dest});
 }
 
 async function uploadFile(dev: DevId | string, path: string, src: string) {
     if (typeof dev === 'string') dev = stringToDev(dev);
-    await promisified({...dev, cmd: 'uploadFile', path, src});
+    await invoke('upload_file', {...dev, path, src});
 }
 
 async function uploadOs(dev: DevId | string, src: string) {
     if (typeof dev === 'string') dev = stringToDev(dev);
-    await promisified({...dev, cmd: 'uploadOs', src});
+    await invoke('upload_os', {...dev, src});
 }
 
 async function deleteFile(dev: DevId | string, path: string) {
     if (typeof dev === 'string') dev = stringToDev(dev);
-    await promisified({...dev, cmd: 'deleteFile', path});
+    await invoke('delete_file', {...dev, path});
 }
 
 async function deleteDir(dev: DevId | string, path: string) {
     if (typeof dev === 'string') dev = stringToDev(dev);
-    await promisified({...dev, cmd: 'deleteDir', path});
+    await invoke('delete_dir', {...dev, path});
 }
 
 async function createDir(dev: DevId | string, path: string) {
     if (typeof dev === 'string') dev = stringToDev(dev);
-    await promisified({...dev, cmd: 'createNspireDir', path});
+    await invoke('create_nspire_dir', {...dev, path});
 }
 
 async function move(dev: DevId | string, src: string, dest: string) {
     if (typeof dev === 'string') dev = stringToDev(dev);
-    await promisified({...dev, cmd: 'move', src, dest});
+    await invoke('move_file', {...dev, src, dest});
 }
 
 async function copy(dev: DevId | string, src: string, dest: string) {
     if (typeof dev === 'string') dev = stringToDev(dev);
-    await promisified({...dev, cmd: 'copy', src, dest});
+    await invoke('copy', {...dev, src, dest});
 }
 
 async function listDir(dev: DevId | string, path: string) {
     if (typeof dev === 'string') dev = stringToDev(dev);
-    return await promisified({...dev, cmd: 'listDir', path}) as FileInfo[];
+    return await invoke('list_dir', {...dev, path}) as FileInfo[];
 }
 
 async function listAll(dev: DevId | string, path: FileInfo): Promise<FileInfo[]> {
@@ -195,7 +196,7 @@ class Devices extends Vue implements GenericDevices {
     async enumerate() {
         this.enumerating = true;
         try {
-            for (const dev of await promisified({cmd: 'enumerate'}) as (Device & DevId)[]) {
+            for (const dev of await invoke('enumerate') as (Device & DevId)[]) {
                 this.$set(this.devices, devToString(dev as DevId), dev);
             }
         } finally {
@@ -205,19 +206,19 @@ class Devices extends Vue implements GenericDevices {
 
     async open(dev: DevId | string) {
         if (typeof dev === 'string') dev = stringToDev(dev);
-        const info = await promisified({...dev, cmd: 'openDevice'});
+        const info = await invoke('open_device', {...dev});
         this.$set(this.devices[devToString(dev)], 'info', info);
     }
 
     async close(dev: DevId | string) {
         if (typeof dev === 'string') dev = stringToDev(dev);
-        await promisified({...dev, cmd: 'closeDevice'});
+        await invoke('close_device', {...dev});
         this.$delete(this.devices[devToString(dev)], 'info');
     }
 
     async update(dev: DevId | string) {
         if (typeof dev === 'string') dev = stringToDev(dev);
-        const info = await promisified({...dev, cmd: 'updateDevice'});
+        const info = await invoke('update_device', {...dev});
         this.$set(this.devices[devToString(dev)], 'info', info);
     }
 
@@ -227,7 +228,7 @@ class Devices extends Vue implements GenericDevices {
 
     async promptUploadFiles(dev: DevId | string, path: string) {
         if (typeof dev !== 'string') dev = devToString(dev);
-        const files = await promisified({cmd: 'selectFiles', filter: ['tns']}) as string[];
+        const files = await openDialog({filters:[{extensions:['tns'], name:'TNS files'}], multiple: true});
         for (const src of files) {
             this.addToQueue(dev, {action: 'upload', path, src});
         }
@@ -235,14 +236,14 @@ class Devices extends Vue implements GenericDevices {
 
     async uploadOs(dev: DevId | string, filter: string) {
         if (typeof dev !== 'string') dev = devToString(dev);
-        const src = await promisified({cmd: 'selectFile', filter: [filter]}) as string | null;
+        const src = await openDialog({filters:[{extensions:[filter], name:'TI Nspire OS upgrade files'}]}) as string | null;
         if (!src) return;
         this.addToQueue(dev, {action: 'uploadOs', src});
     }
 
     async downloadFiles(dev: DevId | string, files: [string, number][]) {
         if (typeof dev !== 'string') dev = devToString(dev);
-        const dest = await promisified({cmd: 'selectFolder'}) as string | null;
+        const dest = await openDialog({directory: true}) as string | null;
         if (!dest) return;
         for (const path of files) {
             this.addToQueue(dev, {action: 'download', path, dest});

desktop/src/views/Home.vue

@@ -4,11 +4,19 @@
       <div class="flex-shrink-0 border-r w-64">
         <device-select :selected.sync="selectedCalculator"/>
         <div class="overflow-auto h-full px-4 py-4">
-          <div v-if="needsDrivers">
+          <div v-if="needsDrivers && !isLinux">
             <h1 class="text-3xl">Drivers required</h1>
             <p>The WinUSB driver is required to use this device.</p>
             <p class="text-center mt-2">
-              <a href="#" @click.prevent="installDrivers" class="text-blue-600">See installation instructions</a>
+              <a href="#" @click.prevent="installDrivers()" class="text-blue-600">See installation instructions</a>
+            </p>
+          </div>
+          <div v-else-if="needsDrivers && isLinux">
+            <h1 class="text-3xl">udev rules required</h1>
+            <p>udev rules are required to access this device.</p>
+            <p class="text-center mt-2">
+              <a href="#" @click.prevent="installDrivers('linux')" class="text-blue-600">See installation
+                instructions</a>
             </p>
           </div>
           <div v-else-if="calculator && !calculator.info" class="flex items-center justify-center h-full">
@@ -34,7 +42,7 @@
 
 <script lang="ts">
 import {Component, Vue, Watch} from 'vue-property-decorator';
-import {open} from 'tauri/api/window';
+import {open} from '@tauri-apps/api/shell';
 import CalcInfo from 'n-link-core/components/CalcInfo.vue';
 import FileBrowser from 'n-link-core/components/FileBrowser.vue';
 import DeviceSelect from "n-link-core/components/DeviceSelect.vue";
@@ -94,8 +102,12 @@ export default class Home extends Vue {
     return this.selectedCalculator && this.$devices.devices[this.selectedCalculator]?.needsDrivers;
   }
 
-  installDrivers() {
+  get isLinux() {
-    open('https://lights0123.com/n-link/#windows');
+    return navigator.platform.includes('Linux');
+  }
+
+  installDrivers(platform = 'windows') {
+    open(`https://lights0123.com/n-link/#${platform}`);
   }
 }
 </script>

n-link-core/.eslintrc.js

@@ -13,6 +13,7 @@ module.exports = {
   },
   rules: {
     'no-console': process.env.NODE_ENV === 'production' ? ['warn', { allow: ['warn', 'error'] }] : 'off',
-    'no-debugger': process.env.NODE_ENV === 'production' ? 'warn' : 'off'
+    'no-debugger': process.env.NODE_ENV === 'production' ? 'warn' : 'off',
+    '@typescript-eslint/explicit-module-boundary-types': 'off',
   }
 }

n-link-core/components/DeviceSelect.vue

@@ -1,9 +1,14 @@
 <template>
   <div class="header border-b px-2 py-2 flex w-full">
-    <button @click="$devices.enumerate()" class="flex-shrink-0 mr-2 focus:outline-none" :class="$devices.enumerating && 'cursor-not-allowed opacity-25'" :disabled="$devices.enumerating">
+    <button @click="$devices.enumerate()" class="flex-shrink-0 mr-2 focus:outline-none"
-    <img src="~feather-icons/dist/icons/refresh-cw.svg" class="w-5"/>
+            :class="$devices.enumerating && 'cursor-not-allowed opacity-25'" :disabled="$devices.enumerating">
+      <img src="~feather-icons/dist/icons/refresh-cw.svg" class="w-5"/>
+      <div v-if="scanHint && Object.keys($devices.devices).length === 0" class="p-4 refresh-popup">
+        Click to connect a device
+      </div>
     </button>
-    <el-popover width="239" :visible-arrow="false" popper-class="focus:outline-none dev-select-pop" v-model="active" class="w-full overflow-hidden">
+    <el-popover width="239" :visible-arrow="false" popper-class="focus:outline-none dev-select-pop" v-model="active"
+                class="w-full overflow-hidden">
       <div slot="reference" class="relative w-full focus:outline-none">
         <div
             class="block w-full bg-white border border-gray-400 hover:border-gray-500 px-4 py-3/2 pr-8 rounded shadow leading-tight focus:outline-none focus:shadow-outline h-8 truncate">
@@ -38,13 +43,14 @@
 </template>
 
 <script lang="ts">
-import {Component, PropSync, Vue} from 'vue-property-decorator';
+import {Component, Prop, PropSync, Vue} from 'vue-property-decorator';
 import ElPopover from 'element-ui/packages/popover/src/main.vue';
 import 'element-ui/lib/theme-chalk/popover.css';
 
 @Component({components: {ElPopover}})
 export default class DeviceSelect extends Vue {
   @PropSync('selected', {type: [String]}) selectedCalculator!: string | null;
+  @Prop({type: Boolean, default: false}) scanHint!: boolean;
   active = false;
 
   select(dev: string) {
@@ -66,6 +72,25 @@ export default class DeviceSelect extends Vue {
 .header {
   height: 50px;
 }
+
+.refresh-popup {
+  $offset: 5px;
+  $size: 9px;
+  margin-left: -4.5px;
+  margin-top: 10px;
+  @apply absolute bg-blue-600 text-white;
+  &:before {
+    content: "";
+    position: absolute;
+    left: $offset;
+    top: $size * -2;
+    border-top: $size solid transparent;
+    border-right: $size solid transparent;
+    border-bottom: $size solid theme('colors.blue.600');
+
+    border-left: $size solid transparent;
+  }
+}
 </style>
 
 <style lang="scss">

n-link-core/components/devices.ts

@@ -41,6 +41,7 @@ export interface GenericDevices {
     devices: Record<string, Device>;
     enumerating: boolean;
     hasEnumerated: boolean;
+    errorHandler?: (e: DOMException) => void;
 
     enumerate(): Promise<void>;
     open(dev: string): Promise<void>;

n-link-core/tailwind.config.js

@@ -46,6 +46,9 @@ module.exports = {
           blockquote: 'var(--color-ui-blockquote)',
         },
       },
+      height: {
+        min: 'min-content',
+      },
     },
   },
   variants: {},

web/.eslintrc.js

@@ -16,5 +16,11 @@ module.exports = {
   // add your custom rules here
   rules: {
     'import/no-webpack-loader-syntax': 0,
+    'require-await': 0,
+    'unicorn/number-literal-case': 0,
+    'no-console':
+      process.env.NODE_ENV === 'production'
+        ? ['warn', { allow: ['warn', 'error'] }]
+        : 'off',
   },
 };

web/components/ErrorMessage.vue

@@ -0,0 +1,82 @@
+<template>
+  <client-only>
+    <vue-final-modal
+      v-model="isOpen"
+      classes="flex justify-center h-screen overflow-auto"
+      content-class="mt-10 mb-8 xl:mx-10 w-full h-min bg-white rounded p-4"
+    >
+      <div class="flex flex-col bg-white rounded p-4">
+        <button v-if="isOpen" class="self-end" @click="isOpen = false">
+          <img src="~feather-icons/dist/icons/x.svg" class="w-5" />
+        </button>
+        <div v-if="category === 'udev'">
+          <h1 class="text-3xl">Permission Error</h1>
+          <p>
+            A permissions error was encountered when trying to access the
+            device.
+            <a
+              href="https://lights0123.com/n-link/#linux"
+              class="text-blue-600 underline"
+            >
+              Follow the Linux installation steps</a
+            >
+            to configure udev rules.
+          </p>
+        </div>
+        <div v-else-if="category === 'reset'">
+          <h1 class="text-3xl">Resetting Error</h1>
+          <p>
+            Unfortunately, you've run into a known bug affecting calculators on
+            Windows and macOS. There's currently a bug in Chrome that prevents
+            this from working. Feel free to grab the
+            <a
+              href="https://lights0123.com/n-link/"
+              class="text-blue-600 underline"
+            >
+              desktop version</a
+            >
+            instead, though.
+          </p>
+        </div>
+        <div v-else>
+          <h1 class="text-3xl">Unknown Error</h1>
+          <p>
+            An unknown error occurred with the message:
+            {{ error && error.message }}
+          </p>
+        </div>
+      </div>
+    </vue-final-modal>
+  </client-only>
+</template>
+
+<script lang="ts">
+import { Component, Vue } from 'vue-property-decorator';
+
+@Component
+export default class ErrorMessage extends Vue {
+  isOpen = false;
+  category = '';
+  error: DOMException | null = null;
+
+  handleError(error: DOMException, phase: 'connection' | 'operation') {
+    if (
+      phase === 'connection' &&
+      error.name === 'SecurityError' &&
+      navigator.platform.includes('Linux')
+    ) {
+      this.category = 'udev';
+    } else if (
+      phase === 'connection' &&
+      error.message === 'Unable to reset the device.' &&
+      ['Win', 'Mac'].some((platform) => navigator.platform.includes(platform))
+    ) {
+      this.category = 'reset';
+    } else {
+      this.category = '';
+    }
+    this.isOpen = true;
+    this.error = error;
+  }
+}
+</script>

web/components/Logo.vue

@@ -1,35 +0,0 @@
-<template>
-  <svg
-    class="NuxtLogo"
-    width="245"
-    height="180"
-    viewBox="0 0 452 342"
-    xmlns="http://www.w3.org/2000/svg"
-  >
-    <path
-      d="M139 330l-1-2c-2-4-2-8-1-13H29L189 31l67 121 22-16-67-121c-1-2-9-14-22-14-6 0-15 2-22 15L5 303c-1 3-8 16-2 27 4 6 10 12 24 12h136c-14 0-21-6-24-12z"
-      fill="#00C58E"
-    />
-    <path
-      d="M447 304L317 70c-2-2-9-15-22-15-6 0-15 3-22 15l-17 28v54l39-67 129 230h-49a23 23 0 0 1-2 14l-1 1c-6 11-21 12-23 12h76c3 0 17-1 24-12 3-5 5-14-2-26z"
-      fill="#108775"
-    />
-    <path
-      d="M376 330v-1l1-2c1-4 2-8 1-12l-4-12-102-178-15-27h-1l-15 27-102 178-4 12a24 24 0 0 0 2 15c4 6 10 12 24 12h190c3 0 18-1 25-12zM256 152l93 163H163l93-163z"
-      fill="#2F495E"
-    />
-  </svg>
-</template>
-
-<style>
-.NuxtLogo {
-  animation: 1s appear;
-  margin: auto;
-}
-
-@keyframes appear {
-  0% {
-    opacity: 0;
-  }
-}
-</style>

web/components/devices.ts

@@ -1,20 +1,24 @@
-import {Component, Vue} from 'vue-property-decorator';
+import { Component, Vue } from 'vue-property-decorator';
-import {RpcProvider} from 'worker-rpc';
+import { RpcProvider } from 'worker-rpc';
-import {saveAs} from 'file-saver';
+import { saveAs } from 'file-saver';
 import UsbWorker from 'worker-loader!@/components/usb.worker.ts';
 import UsbCompat from '@/components/impl';
-import {Cmd, FileInfo, GenericDevices, Info, PartialCmd, Progress,} from 'n-link-core/components/devices';
+import {
+  Cmd,
+  FileInfo,
+  GenericDevices,
+  Info,
+  PartialCmd,
+  Progress,
+} from 'n-link-core/components/devices';
 /// The USB vendor ID used by all Nspire calculators.
 const VID = 0x0451;
 /// The USB vendor ID used by all non-CX and original CX calculators.
 const PID = 0xe012;
 /// The USB vendor ID used by all CX II calculators.
 const PID_CX2 = 0xe022;
-
+type Rpc = Pick<RpcProvider, 'rpc'>;
-async function promisified(...a: any[]): Promise<any> {
+type WorkerExt = Worker & { rpc: Rpc; compat: UsbCompat };
-}
-
-type WorkerExt = Worker & { rpc: RpcProvider };
 export type Device = {
   device: USBDevice;
   name: string;
@@ -27,54 +31,51 @@ export type Device = {
   running?: boolean;
 };
 
-async function downloadFile(
+async function downloadFile(dev: Rpc, path: [string, number]) {
-  dev: RpcProvider,
+  const data: Uint8Array = await dev.rpc('downloadFile', { path });
-  path: [string, number]
-) {
-  const data: Uint8Array = await dev.rpc('downloadFile', {path});
   saveAs(new Blob([data]), path[0].split('/').pop());
 }
 
-async function uploadFile(dev: RpcProvider, path: string, data: Uint8Array) {
+async function uploadFile(dev: Rpc, path: string, data: Uint8Array) {
-  await dev.rpc('uploadFile', {path, data});
+  await dev.rpc('uploadFile', { path, data });
 }
 
-async function uploadOs(dev: RpcProvider, data: Uint8Array) {
+async function uploadOs(dev: Rpc, data: Uint8Array) {
-  await dev.rpc('uploadOs', {data});
+  await dev.rpc('uploadOs', { data });
 }
 
-async function deleteFile(dev: RpcProvider, path: string) {
+async function deleteFile(dev: Rpc, path: string) {
-  await dev.rpc('deleteFile', {path});
+  await dev.rpc('deleteFile', { path });
 }
 
-async function deleteDir(dev: RpcProvider, path: string) {
+async function deleteDir(dev: Rpc, path: string) {
-  await dev.rpc('deleteDir', {path});
+  await dev.rpc('deleteDir', { path });
 }
 
-async function createDir(dev: RpcProvider, path: string) {
+async function createDir(dev: Rpc, path: string) {
-  await dev.rpc('createDir', {path});
+  await dev.rpc('createDir', { path });
 }
 
-async function move(dev: RpcProvider, src: string, dest: string) {
+async function move(dev: Rpc, src: string, dest: string) {
-  await dev.rpc('move', {src, dest});
+  await dev.rpc('move', { src, dest });
 }
 
-async function copy(dev: RpcProvider, src: string, dest: string) {
+async function copy(dev: Rpc, src: string, dest: string) {
-  await dev.rpc('copy', {src, dest});
+  await dev.rpc('copy', { src, dest });
 }
 
-async function listDir(dev: RpcProvider, path: string) {
+async function listDir(dev: Rpc, path: string) {
-  return (await dev.rpc('listDir', {path})) as FileInfo[];
+  return (await dev.rpc('listDir', { path })) as FileInfo[];
 }
 
-async function listAll(dev: RpcProvider, path: FileInfo): Promise<FileInfo[]> {
+async function listAll(dev: Rpc, path: FileInfo): Promise<FileInfo[]> {
   if (!path.isDir) return [path];
   try {
     const contents = await listDir(dev, path.path);
     const parts: FileInfo[] = [];
     for (const file of contents) {
       parts.push(
-        ...(await listAll(dev, {...file, path: `${path.path}/${file.path}`}))
+        ...(await listAll(dev, { ...file, path: `${path.path}/${file.path}` }))
       );
     }
     parts.push(path);
@@ -92,14 +93,14 @@ class Devices extends Vue implements GenericDevices {
   enumerating = false;
   hasEnumerated = false;
   devices: Record<string, Device> = {};
+  errorHandler?: (e: DOMException) => void;
 
-  created() {
+  created() {}
-  }
 
   async runQueue(dev: string) {
     const device = this.devices[dev];
     if (!device?.queue || !device.worker || device.running) return;
-    const {rpc} = device.worker;
+    const { rpc } = device.worker;
     this.$set(device, 'running', true);
     // eslint-disable-next-line no-constant-condition
     while (true) {
@@ -116,7 +117,11 @@ class Devices extends Vue implements GenericDevices {
           await downloadFile(rpc, cmd.path);
         } else if (cmd.action === 'upload') {
           if (!('file' in cmd)) return;
-          await uploadFile(rpc, `${cmd.path}/${cmd.file.name}`, new Uint8Array(await cmd.file.arrayBuffer()));
+          await uploadFile(
+            rpc,
+            `${cmd.path}/${cmd.file.name}`,
+            new Uint8Array(await cmd.file.arrayBuffer())
+          );
         } else if (cmd.action === 'uploadOs') {
           if (!('file' in cmd)) return;
           await uploadOs(rpc, new Uint8Array(await cmd.file.arrayBuffer()));
@@ -133,6 +138,7 @@ class Devices extends Vue implements GenericDevices {
         }
       } catch (e) {
         console.error(e);
+        this.errorHandler?.(e);
       }
       if ('progress' in device) this.$delete(device, 'progress');
       device.queue.shift();
@@ -147,7 +153,7 @@ class Devices extends Vue implements GenericDevices {
       this.$set(device, 'queue', []);
     }
     device.queue?.push(
-      ...cmds.map((cmd) => ({...cmd, id: queueId++} as Cmd))
+      ...cmds.map((cmd) => ({ ...cmd, id: queueId++ } as Cmd))
     );
     this.runQueue(dev);
   }
@@ -157,7 +163,7 @@ class Devices extends Vue implements GenericDevices {
       if (!navigator.usb) return;
       const device = await navigator.usb.requestDevice({
         filters: [
-          {vendorId: VID, productId: PID},
+          { vendorId: VID, productId: PID },
           {
             vendorId: VID,
             productId: PID_CX2,
@@ -166,9 +172,9 @@ class Devices extends Vue implements GenericDevices {
       });
       navigator.usb.ondisconnect = (e) => {
         const [key] =
-        Object.entries(this.devices).find(
+          Object.entries(this.devices).find(
-          ([_, {device}]) => device === e.device
+            ([_, { device }]) => device === e.device
-        ) || [];
+          ) || [];
         if (key) {
           this.$delete(this.devices, key);
         }
@@ -194,18 +200,35 @@ class Devices extends Vue implements GenericDevices {
     const rpc = new RpcProvider((message, transfer: any) =>
       worker.postMessage(message, transfer)
     );
-    worker.rpc = rpc;
+    worker.rpc = {
-    worker.onmessage = ({data}) => {
+      async rpc(id, payload, transfer) {
+        compat.lastError = undefined;
+        try {
+          return await rpc.rpc(id, payload, transfer);
+        } catch (e) {
+          console.log(e, compat.lastError);
+          if (compat.lastError) throw compat.lastError;
+          throw new DOMException(e.toString());
+        }
+      },
+    };
+    worker.onmessage = ({ data }) => {
       if ('usbCmd' in data) return compat.processCmd(data);
-      if('total' in data) {
+      if ('total' in data) {
         this.$set(this.devices[dev], 'progress', data);
         return;
       }
       rpc.dispatch(data);
     };
+    worker.compat = compat;
     this.$set(this.devices[dev], 'worker', worker as WorkerExt);
 
-    await rpc.rpc('init', {id, sab, vid: device.vendorId, pid: device.productId});
+    await worker.rpc.rpc('init', {
+      id,
+      sab,
+      vid: device.vendorId,
+      pid: device.productId,
+    });
     await this.update(dev);
   }
 
@@ -231,25 +254,25 @@ class Devices extends Vue implements GenericDevices {
 
   async uploadFiles(dev: string, path: string, files: File[]) {
     for (const file of files) {
-      this.addToQueue(dev, {action: 'upload', path, file});
+      this.addToQueue(dev, { action: 'upload', path, file });
     }
   }
 
-  async promptUploadFiles(dev: string, path: string) {
+  async promptUploadFiles(_dev: string, _path: string) {
     throw new Error('Unimplemented');
   }
 
-  async uploadOs(dev: string, filter: string) {
+  async uploadOs(_dev: string, _filter: string) {
     throw new Error('Unimplemented');
   }
 
   async uploadOsFile(dev: string, file: File): Promise<void> {
-    this.addToQueue(dev, {action: 'uploadOs', file});
+    this.addToQueue(dev, { action: 'uploadOs', file });
   }
 
   async downloadFiles(dev: string, files: [string, number][]) {
     for (const path of files) {
-      this.addToQueue(dev, {action: 'download', path});
+      this.addToQueue(dev, { action: 'download', path });
     }
   }
 
@@ -269,15 +292,15 @@ class Devices extends Vue implements GenericDevices {
   }
 
   async createDir(dev: string, path: string) {
-    this.addToQueue(dev, {action: 'createDir', path});
+    this.addToQueue(dev, { action: 'createDir', path });
   }
 
   async copy(dev: string, src: string, dest: string) {
-    this.addToQueue(dev, {action: 'copy', src, dest});
+    this.addToQueue(dev, { action: 'copy', src, dest });
   }
 
   async move(dev: string, src: string, dest: string) {
-    this.addToQueue(dev, {action: 'move', src, dest});
+    this.addToQueue(dev, { action: 'move', src, dest });
   }
 }
 

web/components/impl.ts

@@ -10,14 +10,14 @@ export enum UsbError {
   Unknown = 'Unknown',
 }
 
-const exceptionMap = globalThis.DOMException
+const exceptionMap: Record<string, string> = globalThis.DOMException
   ? {
-      [DOMException.NOT_FOUND_ERR]: UsbError.NotFound,
+      NotFoundError: UsbError.NotFound,
-      [DOMException.SECURITY_ERR]: UsbError.Security,
+      SecurityError: UsbError.Security,
-      [DOMException.NETWORK_ERR]: UsbError.Network,
+      NetworkError: UsbError.Network,
-      [DOMException.ABORT_ERR]: UsbError.Abort,
+      AbortError: UsbError.Abort,
-      [DOMException.INVALID_STATE_ERR]: UsbError.InvalidState,
+      InvalidStateError: UsbError.InvalidState,
-      [DOMException.INVALID_ACCESS_ERR]: UsbError.InvalidAccess,
+      InvalidAccessError: UsbError.InvalidAccess,
     }
   : {};
 
@@ -85,6 +85,7 @@ let count = 0;
 export default class UsbCompat {
   devices: Record<number, USBDevice> = {};
   arr: SharedArrayBuffer;
+  lastError?: DOMException;
 
   constructor(arr: SharedArrayBuffer) {
     this.arr = arr;
@@ -149,7 +150,10 @@ export default class UsbCompat {
       return reply;
     } catch (e) {
       console.error(e);
-      return { Err: exceptionMap[e.name] || UsbError.Unknown };
+      this.lastError = e;
+      return {
+        Err: { [exceptionMap[e.name as string] || UsbError.Unknown]: null },
+      };
     }
   }
 

web/nuxt.config.js

@@ -4,11 +4,16 @@ export default {
 
   // Global page headers (https://go.nuxtjs.dev/config-head)
   head: {
-    title: 'web',
+    title: 'N-Link',
     meta: [
       { charset: 'utf-8' },
       { name: 'viewport', content: 'width=device-width, initial-scale=1' },
-      { hid: 'description', name: 'description', content: '' },
+      {
+        hid: 'description',
+        name: 'description',
+        content:
+          'Free, cross-platform, CX-II compatible computer linking program for the TI-Nspire.',
+      },
     ],
     link: [{ rel: 'icon', type: 'image/x-icon', href: '/favicon.ico' }],
   },
@@ -35,6 +40,6 @@ export default {
 
   // Build Configuration (https://go.nuxtjs.dev/config-build)
   build: {
-    transpile: ['n-link-core', 'element-ui'],
+    transpile: ['n-link-core', 'element-ui', 'vue-final-modal'],
   },
 };

web/package.json

@@ -1,6 +1,6 @@
 {
   "name": "web",
-  "version": "0.1.5",
+  "version": "0.1.6",
   "private": true,
   "scripts": {
     "dev": "nuxt-ts",
@@ -19,7 +19,7 @@
     "nuxt": "^2.14.5",
     "vue-async-computed": "^3.9.0",
     "vue-property-decorator": "^9.0.2",
-    "web-libnspire": "^0.1.4",
+    "web-libnspire": "^0.1.5",
     "worker-rpc": "^0.2.0"
   },
   "devDependencies": {
@@ -37,6 +37,7 @@
     "eslint-plugin-nuxt": "^1.0.0",
     "eslint-plugin-prettier": "^3.1.4",
     "prettier": "^2.1.1",
+    "vue-final-modal": "^2.1.0",
     "worker-loader": "^3.0.3"
   }
 }

web/pages/index.vue

@@ -1,8 +1,10 @@
 <template>
   <div class="home h-full overflow-hidden">
+    <ErrorMessage ref="errorMessage" />
     <div class="flex flex-row h-full">
       <div class="flex flex-col flex-shrink-0 border-r w-64">
         <device-select
+          :scan-hint="webUSB"
           :selected.sync="selectedCalculator"
           :class="webUSB || 'opacity-50 pointer-events-none'"
         />
@@ -76,12 +78,14 @@
           class="flex flex-col items-center justify-center h-full select-text"
         >
           <p class="text-3xl">Your browser doesn't support WebUSB</p>
-          <a
+          <p class="text-xl">
-            href="https://lights0123.com/n-link/"
+            <a
-            class="text-xl text-blue-600 underline"
+              href="https://lights0123.com/n-link/"
-          >
+              class="text-blue-600 underline inline"
-            Check out the desktop version instead
+            >
-          </a>
+              Check out the desktop version instead</a
+            >, or switch to a Chrome-based browser
+          </p>
         </div>
       </div>
     </div>
@@ -89,11 +93,12 @@
 </template>
 
 <script lang="ts">
-import { Component, Vue, Watch } from 'vue-property-decorator';
+import { Component, Ref, Vue, Watch } from 'vue-property-decorator';
 import CalcInfo from 'n-link-core/components/CalcInfo.vue';
 import FileBrowser from 'n-link-core/components/FileBrowser.vue';
 import DeviceSelect from 'n-link-core/components/DeviceSelect.vue';
 import '@/components/devices';
+import ErrorMessage from '@/components/ErrorMessage.vue';
 
 function sleep(ms: number) {
   return new Promise((resolve) => setTimeout(resolve, ms));
@@ -101,6 +106,7 @@ function sleep(ms: number) {
 
 @Component({
   components: {
+    ErrorMessage,
     DeviceSelect,
     FileBrowser,
     CalcInfo,
@@ -110,9 +116,13 @@ export default class Home extends Vue {
   selectedCalculator: string | null = null;
   showHidden = false;
   webUSB = true;
+  @Ref() readonly errorMessage!: ErrorMessage;
 
   mounted() {
     this.webUSB = !!(navigator as any).usb;
+    this.$devices.errorHandler = (e: DOMException) => {
+      this.errorMessage.handleError(e, 'operation');
+    };
   }
 
   @Watch('$devices.hasEnumerated')
@@ -147,7 +157,8 @@ export default class Home extends Vue {
       try {
         await this.$devices.open(dev);
       } catch (e) {
-        console.error(e);
+        console.error({ e });
+        this.errorMessage.handleError(e, 'connection');
         this.selectedCalculator = null;
       }
     }

web/plugins/index.ts

@@ -1,4 +1,6 @@
 import Vue from 'vue';
 import AsyncComputed from 'vue-async-computed';
+import VueFinalModal from 'vue-final-modal';
 
+if (process.client) Vue.use(VueFinalModal());
 Vue.use(AsyncComputed);

web/static/_headers

@@ -0,0 +1,3 @@
+/*
+  Cross-Origin-Opener-Policy: same-origin
+  Cross-Origin-Embedder-Policy: require-corp

web/types/vue-final-modal/index.d.ts

@@ -0,0 +1,6 @@
+declare module 'vue-final-modal' {
+  import { PluginFunction } from 'vue';
+
+  const install: () => PluginFunction<undefined>;
+  export default install;
+}