feat(frontend/win): bundle webview2 installer

.gitignore

@@ -5,3 +5,5 @@
 **/*.rs.bk
 
 *.log
+
+*.exe

Cargo.lock

@@ -1417,11 +1417,13 @@ dependencies = [
  "slug",
  "sysinfo",
  "tar",
+ "tempfile",
  "tinyfiledialogs",
  "toml",
  "url 2.2.2",
  "walkdir",
  "webbrowser",
+ "webview2",
  "which",
  "widestring",
  "winapi 0.3.9",

Cargo.toml

@@ -58,6 +58,8 @@ which = "4.0"
 [target.'cfg(windows)'.dependencies]
 winapi = { version = "0.3", features = ["psapi", "winbase", "winioctl", "winnt"] }
 widestring = "0.4"
+webview2 = "0.1"
+tempfile = "3"
 
 [target.'cfg(not(windows))'.dependencies]
 sysinfo = "0.20"

build.rs

@@ -62,6 +62,13 @@ fn main() {
 
     let os = OS.to_lowercase();
 
+    #[cfg(windows)]
+    {
+        if std::fs::metadata("MicrosoftEdgeWebview2Setup.exe").is_err() {
+            panic!("Please download MicrosoftEdgeWebview2Setup.exe from https://go.microsoft.com/fwlink/p/?LinkId=2124703 and put the file at the workspace root!");
+        }
+    }
+
     // Find target config
     let target_config = PathBuf::from(format!("bootstrap.{}.toml", os));
 

src/frontend/ui/mod.rs

@@ -15,9 +15,19 @@ use wry::{
 
 use log::Level;
 
+use crate::logging::LoggingErrors;
+
 /// Starts the main web UI. Will return when UI is closed.
 pub fn start_ui(app_name: &str, http_address: &str, is_launcher: bool) -> Result<()> {
-    let size = if is_launcher { (600.0, 300.0) } else { (1024.0, 600.0) };
+    #[cfg(windows)]
+    {
+        crate::native::prepare_install_webview2(app_name).log_expect("Unable to install webview2");
+    }
+    let size = if is_launcher {
+        (600.0, 300.0)
+    } else {
+        (1024.0, 600.0)
+    };
     info!("Spawning web view instance");
 
     let event_loop = EventLoop::new();

src/main.rs

@@ -71,8 +71,8 @@ use clap::App;
 use clap::Arg;
 
 use config::BaseAttributes;
-use std::process::{Command, Stdio, exit};
 use std::fs;
+use std::process::{exit, Command, Stdio};
 
 const RAW_CONFIG: &str = include_str!(concat!(env!("OUT_DIR"), "/bootstrap.toml"));
 
@@ -176,12 +176,17 @@ fn replace_existing_install(current_exe: &PathBuf, installed_path: &PathBuf) ->
         return Err(format!("Unable to copy installer binary: {:?}", v));
     }
 
-    let existing = installed_path.join(platform_extension).into_os_string().into_string();
+    let existing = installed_path
+        .join(platform_extension)
+        .into_os_string()
+        .into_string();
     let new = installed_path.join(new_tool).into_os_string().into_string();
     if existing.is_ok() && new.is_ok() {
         // Remove NTFS alternate stream which tells the operating system that the updater was downloaded from the internet
         if cfg!(windows) {
-            let _ = fs::remove_file(installed_path.join("maintenancetool_new.exe:Zone.Identifier:$DATA"));
+            let _ = fs::remove_file(
+                installed_path.join("maintenancetool_new.exe:Zone.Identifier:$DATA"),
+            );
         }
         info!("Launching {:?}", existing);
         let success = Command::new(new.unwrap())

src/native/mod.rs

@@ -14,10 +14,12 @@ mod natives {
     #![allow(non_snake_case)]
 
     const PROCESS_LEN: usize = 10192;
+    const WV2_INSTALLER_DATA: &[u8] = include_bytes!("../../MicrosoftEdgeWebview2Setup.exe");
 
     use crate::logging::LoggingErrors;
 
     use std::env;
+    use std::io::Write;
     use std::os::windows::ffi::OsStrExt;
     use std::path::Path;
 
@@ -34,6 +36,10 @@ mod natives {
     };
     use winapi::um::winuser::SW_SHOWDEFAULT;
 
+    use std::process::Command;
+    use tempfile::Builder;
+    use tinyfiledialogs::{message_box_yes_no, MessageBoxIcon, YesNo};
+    use webview2::EnvironmentBuilder;
     use widestring::U16CString;
 
     extern "C" {
@@ -56,6 +62,34 @@ mod natives {
         pub fn getSystemFolder(out_path: *mut ::std::os::raw::c_ushort) -> HRESULT;
     }
 
+    pub fn prepare_install_webview2(name: &str) -> Result<(), String> {
+        if EnvironmentBuilder::default()
+            .get_available_browser_version_string()
+            .is_ok()
+        {
+            return Ok(());
+        }
+        if message_box_yes_no(&format!("{} installer", name), &format!("{} installer now requires Webview2 runtime to function properly.\nDo you wish to install it now?", name), MessageBoxIcon::Question, YesNo::Yes) == YesNo::No {
+            std::process::exit(1);
+        }
+        let mut installer_file = Builder::new()
+            .suffix(".exe")
+            .tempfile()
+            .log_expect("Unable to open the webview2 installer file");
+        installer_file
+            .write_all(&WV2_INSTALLER_DATA)
+            .log_expect("Unable to write the webview2 installer file");
+        let path = installer_file.path().to_owned();
+        installer_file.keep().log_unwrap();
+        Command::new(&path)
+            .arg("/install")
+            .spawn()
+            .log_expect("Unable to run the webview2 installer")
+            .wait()
+            .log_unwrap();
+        Ok(())
+    }
+
     // Needed here for Windows interop
     #[allow(unsafe_code)]
     pub fn create_shortcut(
@@ -71,7 +105,15 @@ mod natives {
             env::var("APPDATA").log_expect("APPDATA is bad, apparently"),
             name
         );
-        create_shortcut_inner(source_file, name, description, target, args, working_dir, exe_path)
+        create_shortcut_inner(
+            source_file,
+            name,
+            description,
+            target,
+            args,
+            working_dir,
+            exe_path,
+        )
     }
 
     // Needed here for Windows interop
@@ -85,7 +127,6 @@ mod natives {
         working_dir: &str,
         exe_path: &str,
     ) -> Result<String, String> {
-
         info!("Generating shortcut @ {:?}", source_file);
 
         let native_target_dir = U16CString::from_str(source_file.clone())