v1.16.9

[docs] Add info about upx and antivirus vendors

.github/ISSUE_TEMPLATE/bug_report.md

@@ -8,7 +8,7 @@ assignees: ''
 ---
 
 #####################################################
-     **If you have a technical issue, please do not open a bug this way!** 
+     **V1 users: If you have a technical issue, please do not open a bug this way!** 
                       Please use the `wails issue` command!
           If you do not do this then the issue may be closed automatically.                      
 
@@ -33,7 +33,7 @@ A clear and concise description of what you expected to happen.
 If applicable, add screenshots to help explain your problem.
 
 **System Details**
-Please provide your platform, GO version and variables, etc
+V2 users: Please add the output of `wails doctor`.
 
 **Additional context**
 Add any other context about the problem here.

README.md

@@ -1,17 +1,35 @@
 <p align="center" style="text-align: center">
-   <img src="logo.png" width="55%"><br/>
+  <img src="logo.png" width="55%"><br/>
 </p>
 <p align="center">
-   Build desktop applications using Go & Web Technologies.<br/><br/>
-   <a href="https://github.com/wailsapp/wails/blob/master/LICENSE"><img src="https://img.shields.io/badge/License-MIT-blue.svg"></a>
-   <a href="https://goreportcard.com/report/github.com/wailsapp/wails"><img src="https://goreportcard.com/badge/github.com/wailsapp/wails"/></a>
-   <a href="http://godoc.org/github.com/wailsapp/wails"><img src="https://img.shields.io/badge/godoc-reference-blue.svg"/></a>
-   <a href="https://www.codefactor.io/repository/github/wailsapp/wails"><img src="https://www.codefactor.io/repository/github/wailsapp/wails/badge" alt="CodeFactor" /></a>
-   <a href="https://github.com/wailsapp/wails/issues"><img src="https://img.shields.io/badge/contributions-welcome-brightgreen.svg?style=flat" alt="CodeFactor" /></a>
-   <a href="https://app.fossa.io/projects/git%2Bgithub.com%2Fwailsapp%2Fwails?ref=badge_shield" alt="FOSSA Status"><img src="https://app.fossa.io/api/projects/git%2Bgithub.com%2Fwailsapp%2Fwails.svg?type=shield"/></a>
-   <a href="https://houndci.com"><img src="https://img.shields.io/badge/Reviewed_by-Hound-8E64B0.svg"/></a>
-   <a href="https://github.com/avelino/awesome-go" rel="nofollow"><img src="https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg" alt="Awesome"></a>
-   <a href="https://github.com/wailsapp/wails/workflows/release/badge.svg?branch=master" rel="nofollow"><img src="https://github.com/wailsapp/wails/workflows/release/badge.svg?branch=master" alt="Release Pipelines"></a>
+  Build desktop applications using Go & Web Technologies.<br/><br/>
+  <a href="https://github.com/wailsapp/wails/blob/master/LICENSE">
+    <img src="https://img.shields.io/badge/License-MIT-blue.svg">
+  </a>
+  <a href="https://goreportcard.com/report/github.com/wailsapp/wails">
+    <img src="https://goreportcard.com/badge/github.com/wailsapp/wails"/>
+  </a>
+  <a href="http://godoc.org/github.com/wailsapp/wails">
+    <img src="https://img.shields.io/badge/godoc-reference-blue.svg"/>
+  </a>
+  <a href="https://www.codefactor.io/repository/github/wailsapp/wails">
+    <img src="https://www.codefactor.io/repository/github/wailsapp/wails/badge" alt="CodeFactor" />
+  </a>
+  <a href="https://github.com/wailsapp/wails/issues">
+    <img src="https://img.shields.io/badge/contributions-welcome-brightgreen.svg?style=flat" alt="CodeFactor" />
+  </a>
+  <a href="https://app.fossa.io/projects/git%2Bgithub.com%2Fwailsapp%2Fwails?ref=badge_shield" alt="FOSSA Status">
+    <img src="https://app.fossa.io/api/projects/git%2Bgithub.com%2Fwailsapp%2Fwails.svg?type=shield"/>
+  </a>
+  <a href="https://houndci.com">
+    <img src="https://img.shields.io/badge/Reviewed_by-Hound-8E64B0.svg"/>
+  </a>
+  <a href="https://github.com/avelino/awesome-go" rel="nofollow">
+    <img src="https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg" alt="Awesome"/>
+  </a>
+  <a href="https://github.com/wailsapp/wails/workflows/release/badge.svg?branch=master" rel="nofollow">
+    <img src="https://github.com/wailsapp/wails/workflows/release/badge.svg?branch=master" alt="Release Pipelines"/>
+  </a>
 </p>
 
 <span id="nav-1"></span>
@@ -88,6 +106,21 @@ Click [here](https://wails.io) if you are interested in trying out v2 Beta for W
 
 This project is supported by these kind people / companies:
 
+<p align="center">
+  <a href="https://www.easywebadv.it/" style="width:100px;">
+    <img src="website/static/img/easyweb.png" width="100"/>
+  </a>
+</p>
+<br/>
+<br/>
+<a href="https://github.com/sponsors/leaanthony" style="width:100px;">
+  <img src="sponsors/silver%20sponsor.png" width="100"/>
+</a>
+<a href="https://github.com/letheanVPN" style="width:100px;">
+  <img src="https://github.com/letheanVPN.png?size=100" width="100"/>
+</a>
+<br/>
+<br/>
 <a href="https://github.com/sponsors/leaanthony" style="width:100px;">
   <img src="sponsors/bronze%20sponsor.png" width="100"/>
 </a>
@@ -97,13 +130,16 @@ This project is supported by these kind people / companies:
 <a href="https://github.com/codydbentley" style="width:100px">
   <img src="https://github.com/codydbentley.png?size=100" width="100"/>
 </a>
+<a href="https://github.com/CrackDavid" style="width:100px">
+  <img src="https://github.com/CrackDavid.png?size=100" width="100"/>
+</a>
 <br/>
 <br/>
 <a href="https://github.com/matryer" style="width:100px">
   <img src="https://github.com/matryer.png" width="100"/>
 </a>
 <a href="https://www.jetbrains.com?from=Wails" style="width:100px">
-  <img src="/img/jetbrains-grayscale.png" width="100"/>
+  <img src="/assets/images/jetbrains-grayscale.png" width="100"/>
 </a>
 <a href="https://github.com/tc-hib" style="width:55px">
  <img src="https://github.com/tc-hib.png?size=55" width="55"/>
@@ -156,6 +192,9 @@ This project is supported by these kind people / companies:
 <a href="https://github.com/DonTomato" style="width:45px">
   <img src="https://github.com/DonTomato.png?size=45" width="45"/>
 </a>
+<a href="https://github.com/taigrr" style="width:45px">
+  <img src="https://github.com/taigrr.png?size=45" width="45"/>
+</a>
 
 <span id="nav-6"></span>
 
@@ -319,11 +358,11 @@ It is recommended at this stage to read the comprehensive documentation at [http
 <a href="https://github.com/SophieAu"><img src="https://github.com/SophieAu.png?size=40" width="40"/></a>
 <a href="https://github.com/alexmat"><img src="https://github.com/alexmat.png?size=40" width="40"/></a>
 <a href="https://github.com/RH12503"><img src="https://github.com/RH12503.png?size=40" width="40"/></a>
-<a href="https://github.com/hi019"><img src="https://github.com/hi019.png?size=40" width="40"/></a></a>
-<a href="https://github.com/Igogrek"><img src="https://github.com/Igogrek.png?size=40" width="40"/></a></a>
-<a href="https://github.com/aschey"><img src="https://github.com/aschey.png?size=40" width="40"/></a></a>
-<a href="https://github.com/akhudek"><img src="https://github.com/akhudek.png?size=40" width="40"/></a></a>
-<a href="https://github.com/s12chung"><img src="https://github.com/s12chung.png?size=40" width="40"/></a></a>
+<a href="https://github.com/hi019"><img src="https://github.com/hi019.png?size=40" width="40"/></a>
+<a href="https://github.com/Igogrek"><img src="https://github.com/Igogrek.png?size=40" width="40"/></a>
+<a href="https://github.com/aschey"><img src="https://github.com/aschey.png?size=40" width="40"/></a>
+<a href="https://github.com/akhudek"><img src="https://github.com/akhudek.png?size=40" width="40"/></a>
+<a href="https://github.com/s12chung"><img src="https://github.com/s12chung.png?size=40" width="40"/></a>
 
 <span id="nav-10"></span>
 
@@ -359,7 +398,7 @@ This project was mainly coded to the following albums:
 ## Special Thanks
 
 <p align="center" style="text-align: center">
-   <a href="https://pace.dev"><img src="pace.jpeg"/></a><br/>
+   <a href="https://pace.dev"><img src="/assets/images/pace.jpeg"/></a><br/>
    A <i>huge</i> thanks to <a href="https://pace.dev">Pace</a> for sponsoring the project and helping the efforts to get Wails ported to Apple Silicon!<br/><br/>
    If you are looking for a Project Management tool that's powerful but quick and easy to use, check them out!<br/><br/>
 </p>
@@ -367,5 +406,5 @@ This project was mainly coded to the following albums:
 <p align="center" style="text-align: center">
    A special thank you to JetBrains for donating licenses to us!<br/><br/>
    Please click the logo to let them know your appreciation!<br/><br/>
-   <a href="https://www.jetbrains.com?from=Wails"><img src="jetbrains-grayscale.png" width="30%"></a>
+   <a href="https://www.jetbrains.com?from=Wails"><img src="/assets/images/jetbrains-grayscale.png" width="30%"></a>
 </p>

README.zh-Hans.md

@@ -2,16 +2,34 @@
    <img src="logo.png" width="55%"><br/>
 </p>
 <p align="center">
-   使用 Go 和 Web 技术构建桌面应用程序。<br/><br/>
-   <a href="https://github.com/wailsapp/wails/blob/master/LICENSE"><img src="https://img.shields.io/badge/License-MIT-blue.svg"></a>
-   <a href="https://goreportcard.com/report/github.com/wailsapp/wails"><img src="https://goreportcard.com/badge/github.com/wailsapp/wails"/></a>
-   <a href="http://godoc.org/github.com/wailsapp/wails"><img src="https://img.shields.io/badge/godoc-reference-blue.svg"/></a>
-   <a href="https://www.codefactor.io/repository/github/wailsapp/wails"><img src="https://www.codefactor.io/repository/github/wailsapp/wails/badge" alt="CodeFactor" /></a>
-   <a href="https://github.com/wailsapp/wails/issues"><img src="https://img.shields.io/badge/contributions-welcome-brightgreen.svg?style=flat" alt="CodeFactor" /></a>
-   <a href="https://app.fossa.io/projects/git%2Bgithub.com%2Fwailsapp%2Fwails?ref=badge_shield" alt="FOSSA Status"><img src="https://app.fossa.io/api/projects/git%2Bgithub.com%2Fwailsapp%2Fwails.svg?type=shield"/></a>
-   <a href="https://houndci.com"><img src="https://img.shields.io/badge/Reviewed_by-Hound-8E64B0.svg"/></a>
-   <a href="https://github.com/avelino/awesome-go" rel="nofollow"><img src="https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg" alt="Awesome"></a>
-   <a href="https://github.com/wailsapp/wails/workflows/release/badge.svg?branch=master" rel="nofollow"><img src="https://github.com/wailsapp/wails/workflows/release/badge.svg?branch=master" alt="Release Pipelines"></a>
+  使用 Go 和 Web 技术构建桌面应用程序。<br/><br/>
+  <a href="https://github.com/wailsapp/wails/blob/master/LICENSE">
+    <img src="https://img.shields.io/badge/License-MIT-blue.svg">
+  </a>
+  <a href="https://goreportcard.com/report/github.com/wailsapp/wails">
+    <img src="https://goreportcard.com/badge/github.com/wailsapp/wails"/>
+  </a>
+  <a href="http://godoc.org/github.com/wailsapp/wails">
+    <img src="https://img.shields.io/badge/godoc-reference-blue.svg"/>
+  </a>
+  <a href="https://www.codefactor.io/repository/github/wailsapp/wails">
+    <img src="https://www.codefactor.io/repository/github/wailsapp/wails/badge" alt="CodeFactor" />
+  </a>
+  <a href="https://github.com/wailsapp/wails/issues">
+    <img src="https://img.shields.io/badge/contributions-welcome-brightgreen.svg?style=flat" alt="CodeFactor" />
+  </a>
+  <a href="https://app.fossa.io/projects/git%2Bgithub.com%2Fwailsapp%2Fwails?ref=badge_shield" alt="FOSSA Status">
+    <img src="https://app.fossa.io/api/projects/git%2Bgithub.com%2Fwailsapp%2Fwails.svg?type=shield"/>
+  </a>
+  <a href="https://houndci.com">
+    <img src="https://img.shields.io/badge/Reviewed_by-Hound-8E64B0.svg"/>
+  </a>
+  <a href="https://github.com/avelino/awesome-go" rel="nofollow">
+    <img src="https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg" alt="Awesome"/>
+  </a>
+  <a href="https://github.com/wailsapp/wails/workflows/release/badge.svg?branch=master" rel="nofollow">
+    <img src="https://github.com/wailsapp/wails/workflows/release/badge.svg?branch=master" alt="Release Pipelines"/>
+  </a>
 </p>
 
 <span id="nav-1"></span>
@@ -91,6 +109,21 @@
 
 这个项目由以下这些人或者公司支持：
 
+<p align="center">
+  <a href="https://www.easywebadv.it/" style="width:100px;">
+    <img src="website/static/img/easyweb.png" width="100"/>
+  </a>
+</p>
+<br/>
+<br/>
+<a href="https://github.com/sponsors/leaanthony" style="width:100px;">
+  <img src="sponsors/silver%20sponsor.png" width="100"/>
+</a>
+<a href="https://github.com/letheanVPN" style="width:100px;">
+  <img src="https://github.com/letheanVPN.png?size=100" width="100"/>
+</a>
+<br/>
+<br/>
 <a href="https://github.com/sponsors/leaanthony" style="width:100px;">
   <img src="sponsors/bronze%20sponsor.png" width="100"/>
 </a>
@@ -100,13 +133,16 @@
 <a href="https://github.com/codydbentley" style="width:100px">
   <img src="https://github.com/codydbentley.png?size=100" width="100"/>
 </a>
+<a href="https://github.com/CrackDavid" style="width:100px">
+  <img src="https://github.com/CrackDavid.png?size=100" width="100"/>
+</a>
 <br/>
 <br/>
 <a href="https://github.com/matryer" style="width:100px">
   <img src="https://github.com/matryer.png" width="100"/>
 </a>
 <a href="https://www.jetbrains.com?from=Wails" style="width:100px">
-  <img src="/img/jetbrains-grayscale.png" width="100"/>
+  <img src="/assets/images/jetbrains-grayscale.png" width="100"/>
 </a>
 <a href="https://github.com/tc-hib" style="width:55px">
  <img src="https://github.com/tc-hib.png?size=55" width="55"/>
@@ -159,6 +195,9 @@
 <a href="https://github.com/DonTomato" style="width:45px">
   <img src="https://github.com/DonTomato.png?size=45" width="45"/>
 </a>
+<a href="https://github.com/taigrr" style="width:45px">
+  <img src="https://github.com/taigrr.png?size=45" width="45"/>
+</a>
 
 <span id="nav-6"></span>
 
@@ -315,11 +354,11 @@ go get -u github.com/wailsapp/wails/cmd/wails
 <a href="https://github.com/SophieAu"><img src="https://github.com/SophieAu.png?size=40" width="40"/></a>
 <a href="https://github.com/alexmat"><img src="https://github.com/alexmat.png?size=40" width="40"/></a>
 <a href="https://github.com/RH12503"><img src="https://github.com/RH12503.png?size=40" width="40"/></a>
-<a href="https://github.com/hi019"><img src="https://github.com/hi019.png?size=40" width="40"/></a></a>
-<a href="https://github.com/Igogrek"><img src="https://github.com/Igogrek.png?size=40" width="40"/></a></a>
-<a href="https://github.com/aschey"><img src="https://github.com/aschey.png?size=40" width="40"/></a></a>
-<a href="https://github.com/akhudek"><img src="https://github.com/akhudek.png?size=40" width="40"/></a></a>
-<a href="https://github.com/s12chung"><img src="https://github.com/s12chung.png?size=40" width="40"/></a></a>
+<a href="https://github.com/hi019"><img src="https://github.com/hi019.png?size=40" width="40"/></a>
+<a href="https://github.com/Igogrek"><img src="https://github.com/Igogrek.png?size=40" width="40"/></a>
+<a href="https://github.com/aschey"><img src="https://github.com/aschey.png?size=40" width="40"/></a>
+<a href="https://github.com/akhudek"><img src="https://github.com/akhudek.png?size=40" width="40"/></a>
+<a href="https://github.com/s12chung"><img src="https://github.com/s12chung.png?size=40" width="40"/></a>
 
 <span id="nav-10"></span>
 
@@ -352,7 +391,7 @@ go get -u github.com/wailsapp/wails/cmd/wails
 ## 特别感谢
 
 <p align="center" style="text-align: center">
-   <a href="https://pace.dev"><img src="pace.jpeg"/></a><br/>
+   <a href="https://pace.dev"><img src="/assets/images/pace.jpeg"/></a><br/>
    <i>非常</i> 感谢<a href="https://pace.dev">Pace</a>对项目的赞助，并帮助将 Wails 移植到 Apple Silicon !<br/><br/>
    如果您正在寻找一个强大并且快速和易于使用的项目管理工具，可以看看他们！<br/><br/>
 </p>
@@ -360,5 +399,5 @@ go get -u github.com/wailsapp/wails/cmd/wails
 <p align="center" style="text-align: center">
    特别感谢 JetBrains 向我们捐赠许可！<br/><br/>
    请点击 logo 让他们知道你的感激之情！<br/><br/>
-   <a href="https://www.jetbrains.com?from=Wails"><img src="jetbrains-grayscale.png" width="30%"></a>
+   <a href="https://www.jetbrains.com?from=Wails"><img src="/assets/images/jetbrains-grayscale.png" width="30%"></a>
 </p>

cmd/fs.go

@@ -6,7 +6,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"log"
 	"os"
 	"path"
@@ -50,7 +49,7 @@ func (fs *FSHelper) FileExists(path string) bool {
 
 // FindFile returns the first occurrence of match inside path.
 func (fs *FSHelper) FindFile(path, match string) (string, error) {
-	files, err := ioutil.ReadDir(path)
+	files, err := os.ReadDir(path)
 	if err != nil {
 		return "", err
 	}
@@ -69,7 +68,7 @@ func (fs *FSHelper) FindFile(path, match string) (string, error) {
 func (fs *FSHelper) CreateFile(filename string, data []byte) error {
 	// Ensure directory exists
 	fs.MkDirs(filepath.Dir(filename))
-	return ioutil.WriteFile(filename, data, 0644)
+	return os.WriteFile(filename, data, 0644)
 }
 
 // MkDirs creates the given nested directories.
@@ -156,14 +155,14 @@ func (fs *FSHelper) LoadRelativeFile(relativePath string) ([]byte, error) {
 	if err != nil {
 		return nil, err
 	}
-	return ioutil.ReadFile(fullPath)
+	return os.ReadFile(fullPath)
 }
 
 // GetSubdirs will return a list of FQPs to subdirectories in the given directory
 func (d *Dir) GetSubdirs() (map[string]string, error) {
 
 	// Read in the directory information
-	fileInfo, err := ioutil.ReadDir(d.fullPath)
+	fileInfo, err := os.ReadDir(d.fullPath)
 	if err != nil {
 		return nil, err
 	}
@@ -215,7 +214,7 @@ func (fs *FSHelper) SaveAsJSON(data interface{}, filename string) error {
 	e.SetIndent("", "  ")
 	e.Encode(data)
 
-	err := ioutil.WriteFile(filename, buf.Bytes(), 0755)
+	err := os.WriteFile(filename, buf.Bytes(), 0755)
 	if err != nil {
 		return err
 	}
@@ -231,7 +230,7 @@ func (fs *FSHelper) LoadAsString(filename string) (string, error) {
 
 // LoadAsBytes returns the contents of the file as a byte slice
 func (fs *FSHelper) LoadAsBytes(filename string) ([]byte, error) {
-	return ioutil.ReadFile(filename)
+	return os.ReadFile(filename)
 }
 
 // FileMD5 returns the md5sum of the given file

cmd/github.go

@@ -3,7 +3,7 @@ package cmd
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"sort"
 )
@@ -28,7 +28,7 @@ func (g *GitHubHelper) GetVersionTags() ([]*SemanticVersion, error) {
 	if err != nil {
 		return result, err
 	}
-	body, err := ioutil.ReadAll(resp.Body)
+	body, err := io.ReadAll(resp.Body)
 	if err != nil {
 		return result, err
 	}

cmd/linux.go

@@ -2,7 +2,6 @@ package cmd
 
 import (
 	"fmt"
-	"io/ioutil"
 	"net/url"
 	"os"
 	"runtime"
@@ -75,7 +74,6 @@ const (
 	NixOS
 	// Artix linux distribution
 	ArtixLinux
-
 )
 
 // DistroInfo contains all the information relating to a linux distribution
@@ -96,7 +94,7 @@ func GetLinuxDistroInfo() *DistroInfo {
 	}
 	_, err := os.Stat("/etc/os-release")
 	if !os.IsNotExist(err) {
-		osRelease, _ := ioutil.ReadFile("/etc/os-release")
+		osRelease, _ := os.ReadFile("/etc/os-release")
 		result = parseOsRelease(string(osRelease))
 	}
 	return result

cmd/package.go

@@ -7,7 +7,6 @@ import (
 	"fmt"
 	"image"
 	"image/png"
-	"io/ioutil"
 	"os"
 	"path"
 	"path/filepath"
@@ -244,7 +243,7 @@ func (b *PackageHelper) packageOSX(po *ProjectOptions) error {
 		// No - create a new plist from our defaults
 		tmpl := template.New("infoPlist")
 		plistFile := filepath.Join(b.getPackageFileBaseDir(), "info.plist")
-		infoPlist, err := ioutil.ReadFile(plistFile)
+		infoPlist, err := os.ReadFile(plistFile)
 		if err != nil {
 			return err
 		}
@@ -258,13 +257,13 @@ func (b *PackageHelper) packageOSX(po *ProjectOptions) error {
 		}
 
 		// Save to the package
-		err = ioutil.WriteFile(plistFilename, tpl.Bytes(), 0644)
+		err = os.WriteFile(plistFilename, tpl.Bytes(), 0644)
 		if err != nil {
 			return err
 		}
 
 		// Also write to project directory for customisation
-		err = ioutil.WriteFile(customPlist, tpl.Bytes(), 0644)
+		err = os.WriteFile(customPlist, tpl.Bytes(), 0644)
 		if err != nil {
 			return err
 		}
@@ -314,10 +313,12 @@ func (b *PackageHelper) PackageWindows(po *ProjectOptions, cleanUp bool) error {
 		return err
 	}
 
-	// Generate icon from PNG
-	err = generateWindowsIcon(icon, basename+".ico")
-	if err != nil {
-		return err
+	// Generate icon from PNG if it doesn't exist
+	if !fs.FileExists(basename + ".ico") {
+		err = generateWindowsIcon(icon, basename+".ico")
+		if err != nil {
+			return err
+		}
 	}
 
 	// Copy manifest
@@ -334,12 +335,12 @@ func (b *PackageHelper) PackageWindows(po *ProjectOptions, cleanUp bool) error {
 	tgtRCFile := filepath.Join(outputDir, basename+".rc")
 	if !b.fs.FileExists(tgtRCFile) {
 		srcRCfile := filepath.Join(b.getPackageFileBaseDir(), "wails.rc")
-		rcfilebytes, err := ioutil.ReadFile(srcRCfile)
+		rcfilebytes, err := os.ReadFile(srcRCfile)
 		if err != nil {
 			return err
 		}
 		rcfiledata := strings.Replace(string(rcfilebytes), "$NAME$", basename, -1)
-		err = ioutil.WriteFile(tgtRCFile, []byte(rcfiledata), 0755)
+		err = os.WriteFile(tgtRCFile, []byte(rcfiledata), 0755)
 		if err != nil {
 			return err
 		}
@@ -387,11 +388,11 @@ func (b *PackageHelper) copyIcon() (string, error) {
 
 		// Install default icon
 		iconfile := filepath.Join(b.getPackageFileBaseDir(), "icon.png")
-		iconData, err := ioutil.ReadFile(iconfile)
+		iconData, err := os.ReadFile(iconfile)
 		if err != nil {
 			return "", err
 		}
-		err = ioutil.WriteFile(srcIcon, iconData, 0644)
+		err = os.WriteFile(srcIcon, iconData, 0644)
 		if err != nil {
 			return "", err
 		}

cmd/project.go

@@ -3,7 +3,6 @@ package cmd
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"runtime"
@@ -310,14 +309,14 @@ func (po *ProjectOptions) WriteProjectConfig() error {
 		return err
 	}
 
-	return ioutil.WriteFile(targetFile, filedata, 0600)
+	return os.WriteFile(targetFile, filedata, 0600)
 }
 
 // LoadConfig loads the project configuration file from the
 // given directory
 func (po *ProjectOptions) LoadConfig(projectDir string) error {
 	targetFile := filepath.Join(projectDir, "project.json")
-	rawBytes, err := ioutil.ReadFile(targetFile)
+	rawBytes, err := os.ReadFile(targetFile)
 	if err != nil {
 		return err
 	}

cmd/system.go

@@ -3,7 +3,6 @@ package cmd
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
 	"log"
 	"os"
 	"path/filepath"
@@ -124,7 +123,7 @@ func (s *SystemHelper) setup() error {
 	if err != nil {
 		return err
 	}
-	err = ioutil.WriteFile(s.wailsSystemConfig, configData, 0755)
+	err = os.WriteFile(s.wailsSystemConfig, configData, 0755)
 	if err != nil {
 		return err
 	}
@@ -207,11 +206,11 @@ func (sc *SystemConfig) Save(filename string) error {
 	}
 
 	// Write it out to the config file
-	return ioutil.WriteFile(filename, theJSON, 0644)
+	return os.WriteFile(filename, theJSON, 0644)
 }
 
 func (sc *SystemConfig) load(filename string) error {
-	configData, err := ioutil.ReadFile(filename)
+	configData, err := os.ReadFile(filename)
 	if err != nil {
 		return err
 	}

cmd/templates.go

@@ -4,8 +4,8 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
 	"log"
+	"os"
 	"path/filepath"
 	"runtime"
 	"strings"
@@ -125,7 +125,7 @@ func (t *TemplateHelper) LoadMetadata(dir string) (*TemplateMetadata, error) {
 	if !t.fs.FileExists(templateFile) {
 		return nil, nil
 	}
-	rawJSON, err := ioutil.ReadFile(templateFile)
+	rawJSON, err := os.ReadFile(templateFile)
 	if err != nil {
 		return nil, err
 	}

cmd/version.go

@@ -1,4 +1,4 @@
 package cmd
 
 // Version - Wails version
-const Version = "v1.16.8"
+const Version = "v1.16.9"

cmd/wails/15_migrate.go

@@ -3,7 +3,6 @@ package main
 import (
 	"bufio"
 	"fmt"
-	"io/ioutil"
 	"log"
 	"os"
 	"path/filepath"
@@ -305,7 +304,7 @@ func updateWailsVersion(currentVersion, latestVersion *semver.Version) error {
 	new := fmt.Sprintf("%s v%s", wailsModule, latestVersion)
 
 	goMod = strings.Replace(goMod, old, new, -1)
-	err := ioutil.WriteFile(goModFile, []byte(goMod), 0600)
+	err := os.WriteFile(goModFile, []byte(goMod), 0600)
 	if err != nil {
 		checkSpinner.Error()
 		return err
@@ -343,7 +342,7 @@ func patchMainJS() error {
 	newStartLine := `Wails.Init`
 	mainJSContents = strings.Replace(mainJSContents, oldStartLine, newStartLine, -1)
 
-	err := ioutil.WriteFile(mainJSFile, []byte(mainJSContents), 0600)
+	err := os.WriteFile(mainJSFile, []byte(mainJSContents), 0600)
 	if err != nil {
 		checkSpinner.Error()
 		return err

cmd/wails/9_issue.go

@@ -2,7 +2,7 @@ package main
 
 import (
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"net/url"
 	"os"
@@ -112,7 +112,7 @@ To help you in this process, we will ask for some information, add Go/Wails deta
 			os.Exit(1)
 		}
 		defer resp.Body.Close()
-		template, _ := ioutil.ReadAll(resp.Body)
+		template, _ := io.ReadAll(resp.Body)
 		body := string(template)
 		body = "**Description**\n" + (strings.Split(body, "**Description**")[1])
 		fullURL := "https://github.com/wailsapp/wails/issues/new?"

go.mod

@@ -8,7 +8,6 @@ require (
 	github.com/gorilla/websocket v1.4.1
 	github.com/jackmordaunt/icns v1.0.0
 	github.com/kennygrant/sanitize v1.2.4
-	github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
 	github.com/leaanthony/slicer v1.4.0
 	github.com/leaanthony/spinner v0.5.3
 	github.com/mattn/go-colorable v0.1.1 // indirect
@@ -17,7 +16,6 @@ require (
 	github.com/pkg/browser v0.0.0-20180916011732-0a3d74bf9ce4
 	github.com/pkg/errors v0.8.1 // indirect
 	github.com/sirupsen/logrus v1.8.1
-	github.com/stretchr/objx v0.1.1 // indirect
 	github.com/stretchr/testify v1.3.0 // indirect
 	github.com/syossan27/tebata v0.0.0-20180602121909-b283fe4bc5ba
 	golang.org/x/image v0.0.0-20200430140353-33d19683fad8

go.sum

@@ -21,9 +21,6 @@ github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 h1:Z9n2FFNU
 github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51/go.mod h1:CzGEWj7cYgsdH8dAjBGEr58BoE7ScuLd+fwFZ44+/x8=
 github.com/kennygrant/sanitize v1.2.4 h1:gN25/otpP5vAsO2djbMhF/LQX6R7+O1TB4yv8NzpJ3o=
 github.com/kennygrant/sanitize v1.2.4/go.mod h1:LGsjYYtgxbetdg5owWB2mpgUL6e2nfw2eObZ0u0qvak=
-github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
-github.com/konsorten/go-windows-terminal-sequences v1.0.2 h1:DB17ag19krx9CFsz4o3enTrPXyIXCl+2iCXH/aMAp9s=
-github.com/konsorten/go-windows-terminal-sequences v1.0.2/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/kr/pty v1.1.1 h1:VkoXIwSboBpnk99O/KFauAEILuNHv5DVFKZMBN/gUgw=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/leaanthony/slicer v1.4.0 h1:Q9u4w+UBU4WHjXnEDdz+eRLMKF/rnyosRBiqULnc1J8=
@@ -52,12 +49,9 @@ github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/sirupsen/logrus v1.4.1 h1:GL2rEmy6nsikmW0r8opw9JIRScdMF5hA8cOYLH7In1k=
-github.com/sirupsen/logrus v1.4.1/go.mod h1:ni0Sbl8bgC9z8RoU9G6nDWqqs/fq4eDPysMBDgk/93Q=
 github.com/sirupsen/logrus v1.8.1 h1:dJKuHgqk1NNQlqoA6BTlM1Wf9DOH3NBjQyu0h9+AZZE=
 github.com/sirupsen/logrus v1.8.1/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.1/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
@@ -73,15 +67,12 @@ golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/net v0.0.0-20200625001655-4c5254603344 h1:vGXIOMxbNfDTk/aXCmfdLgkrSV+Z2tcbze+pEc3v5W4=
 golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/sys v0.0.0-20180606202747-9527bec2660b/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181228144115-9a3f9b0469bb/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200724161237-0e2f3a69832c h1:UIcGWL6/wpCfyGuJnRFJRurA+yj8RrW7Q6x2YMCXt6c=
-golang.org/x/sys v0.0.0-20200724161237-0e2f3a69832c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20211025201205-69cdffdb9359 h1:2B5p2L5IfGiD7+b9BOoRMC6DgObAVZV+Fsp050NqXik=
 golang.org/x/sys v0.0.0-20211025201205-69cdffdb9359/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=

lib/binding/manager.go

@@ -2,7 +2,6 @@ package binding
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"reflect"
@@ -144,7 +143,7 @@ export {};`
 
 	dir := filepath.Dir(typescriptDefinitionFilename)
 	os.MkdirAll(dir, 0755)
-	return ioutil.WriteFile(typescriptDefinitionFilename, []byte(output.String()), 0755)
+	return os.WriteFile(typescriptDefinitionFilename, []byte(output.String()), 0755)
 }
 
 // bind the given struct method

lib/event/manager.go

@@ -55,20 +55,20 @@ func (e *Manager) addEventListener(eventName string, callback func(...interface{
 		return fmt.Errorf("nil callback bassed to addEventListener")
 	}
 
-	// Check event has been registered before
-	if e.listeners[eventName] == nil {
-		e.listeners[eventName] = []*eventListener{}
-	}
-
 	// Create the callback
 	listener := &eventListener{
 		callback: callback,
 		counter:  counter,
 	}
+	e.mu.Lock()
+	// Check event has been registered before
+	if e.listeners[eventName] == nil {
+		e.listeners[eventName] = []*eventListener{}
+	}
 
 	// Register listener
 	e.listeners[eventName] = append(e.listeners[eventName], listener)
-
+	e.mu.Unlock()
 	// All good mate
 	return nil
 }

v2/cmd/wails/internal/commands/build/build.go

@@ -99,11 +99,12 @@ func AddBuildSubcommand(app *clir.Cli, w io.Writer) {
 			"darwin/amd64",
 			"darwin/arm64",
 			"darwin/universal",
-			//"linux",
+			"linux",
 			//"linux/amd64",
 			//"linux/arm-7",
 			"windows",
 			"windows/amd64",
+			"windows/arm64",
 		})
 		if !validPlatformArch.Contains(platform) {
 			return fmt.Errorf("platform %s is not supported. Platforms supported: %s", platform, validPlatformArch.Join(","))

v2/cmd/wails/internal/commands/dev/dev.go

@@ -63,6 +63,7 @@ type devFlags struct {
 	compilerCommand string
 	assetDir        string
 	extensions      string
+	reloadDirs      string
 	openBrowser     bool
 	noReload        bool
 	wailsjsdir      string
@@ -83,8 +84,9 @@ func AddSubcommand(app *clir.Cli, w io.Writer) error {
 	flags := defaultDevFlags()
 	command.StringFlag("ldflags", "optional ldflags", &flags.ldflags)
 	command.StringFlag("compiler", "Use a different go compiler to build, eg go1.15beta1", &flags.compilerCommand)
-	command.StringFlag("assetdir", "Serve assets from the given directory", &flags.assetDir)
+	command.StringFlag("assetdir", "Serve assets from the given directory instead of using the provided asset FS", &flags.assetDir)
 	command.StringFlag("e", "Extensions to trigger rebuilds (comma separated) eg go", &flags.extensions)
+	command.StringFlag("reloaddirs", "Additional directories to trigger reloads (comma separated)", &flags.reloadDirs)
 	command.BoolFlag("browser", "Open application in browser", &flags.openBrowser)
 	command.BoolFlag("noreload", "Disable reload on asset change", &flags.noReload)
 	command.StringFlag("wailsjsdir", "Directory to generate the Wails JS modules", &flags.wailsjsdir)
@@ -278,7 +280,7 @@ func generateBuildOptions(flags devFlags) *build.Options {
 		OutputType:     "dev",
 		Mode:           build.Dev,
 		Arch:           runtime.GOARCH,
-		Pack:           false,
+		Pack:           true,
 		Platform:       runtime.GOOS,
 		LDFlags:        flags.ldflags,
 		Compiler:       flags.compilerCommand,
@@ -287,10 +289,7 @@ func generateBuildOptions(flags devFlags) *build.Options {
 		Verbosity:      flags.verbosity,
 		WailsJSDir:     flags.wailsjsdir,
 	}
-	switch runtime.GOOS {
-	case "darwin":
-		result.Pack = false
-	}
+
 	return result
 }
 
@@ -304,21 +303,29 @@ func loadAndMergeProjectConfig(cwd string, flags *devFlags) (*project.Project, e
 
 	var shouldSaveConfig bool
 
-	if projectConfig.AssetDirectory == "" && flags.assetDir == "" {
-		return nil, fmt.Errorf("No asset directory provided. Please use -assetdir to indicate which directory contains your built assets.")
-	}
-
 	if flags.assetDir == "" && projectConfig.AssetDirectory != "" {
 		flags.assetDir = projectConfig.AssetDirectory
 	}
 
 	if flags.assetDir != projectConfig.AssetDirectory {
 		projectConfig.AssetDirectory = filepath.ToSlash(flags.assetDir)
+		shouldSaveConfig = true
 	}
 
-	flags.assetDir, err = filepath.Abs(flags.assetDir)
-	if err != nil {
-		return nil, err
+	if flags.assetDir != "" {
+		flags.assetDir, err = filepath.Abs(flags.assetDir)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	if flags.reloadDirs == "" && projectConfig.ReloadDirectories != "" {
+		flags.reloadDirs = projectConfig.ReloadDirectories
+	}
+
+	if flags.reloadDirs != projectConfig.ReloadDirectories {
+		projectConfig.ReloadDirectories = filepath.ToSlash(flags.reloadDirs)
+		shouldSaveConfig = true
 	}
 
 	if flags.devServerURL == defaultDevServerURL && projectConfig.DevServerURL != defaultDevServerURL && projectConfig.DevServerURL != "" {
@@ -506,11 +513,26 @@ func doWatcherLoop(buildOptions *build.Options, debugBinaryProcess *process.Proc
 		newBinaryProcess *process.Process
 	)
 	var extensionsThatTriggerARebuild = sliceToMap(strings.Split(flags.extensions, ","))
+	var dirsThatTriggerAReload []string
+	for _, dir := range strings.Split(flags.reloadDirs, ",") {
+		if dir == "" {
+			continue
+		}
+		path, err := filepath.Abs(dir)
+		if err != nil {
+			LogRed("Unable to expand reloadDir '%s': %s", dir, err)
+			continue
+		}
+		dirsThatTriggerAReload = append(dirsThatTriggerAReload, path)
+	}
+
 	quit := false
 	interval := time.Duration(flags.debounceMS) * time.Millisecond
 	timer := time.NewTimer(interval)
 	rebuild := false
 	reload := false
+	assetDir := ""
+	changedPaths := map[string]struct{}{}
 	for quit == false {
 		//reload := false
 		select {
@@ -522,12 +544,13 @@ func doWatcherLoop(buildOptions *build.Options, debugBinaryProcess *process.Proc
 			// Check for file writes
 			if item.Op&fsnotify.Write == fsnotify.Write {
 				// Ignore directories
-				if fs.DirExists(item.Name) {
+				itemName := item.Name
+				if fs.DirExists(itemName) {
 					continue
 				}
 
 				// Iterate all file patterns
-				ext := filepath.Ext(item.Name)
+				ext := filepath.Ext(itemName)
 				if ext != "" {
 					ext = ext[1:]
 					if _, exists := extensionsThatTriggerARebuild[ext]; exists {
@@ -537,9 +560,17 @@ func doWatcherLoop(buildOptions *build.Options, debugBinaryProcess *process.Proc
 					}
 				}
 
-				if strings.HasPrefix(item.Name, flags.assetDir) {
-					reload = true
+				for _, reloadDir := range dirsThatTriggerAReload {
+					if strings.HasPrefix(itemName, reloadDir) {
+						reload = true
+						break
+					}
 				}
+
+				if !reload {
+					changedPaths[filepath.Dir(itemName)] = struct{}{}
+				}
+
 				timer.Reset(interval)
 			}
 			// Check for new directories
@@ -571,6 +602,35 @@ func doWatcherLoop(buildOptions *build.Options, debugBinaryProcess *process.Proc
 					debugBinaryProcess = newBinaryProcess
 				}
 			}
+			if len(changedPaths) != 0 {
+				if assetDir == "" {
+					resp, err := http.Get("http://localhost:34115/wails/assetdir")
+					if err != nil {
+						LogRed("Error during retrieving assetdir: %s", err.Error())
+					} else {
+						content, err := io.ReadAll(resp.Body)
+						if err != nil {
+							LogRed("Error reading assetdir from devserver: %s", err.Error())
+						} else {
+							assetDir = string(content)
+						}
+						resp.Body.Close()
+					}
+				}
+
+				if assetDir != "" {
+					for path := range changedPaths {
+						if strings.HasPrefix(path, assetDir) {
+							reload = true
+							break
+						}
+					}
+				} else if len(dirsThatTriggerAReload) == 0 {
+					LogRed("Reloading couldn't be triggered: Please specify -assetdir or -reloaddirs")
+				}
+
+				changedPaths = map[string]struct{}{}
+			}
 			if reload {
 				reload = false
 				_, err = http.Get("http://localhost:34115/wails/reload")

v2/cmd/wails/internal/commands/generate/template/base/NEXTSTEPS.md.template

@@ -10,7 +10,6 @@ The next steps to complete the template are:
      - It is really important to ensure `helpurl` is valid as this is where users of the template will be directed for help.
   2. Update `README.md`.
   3. Edit `wails.json` and ensure all fields are correct, especially:
-     - `assetdir` - path to your assets
      - `wailsjsdir` - path to generate wailsjs modules
      - `frontend:install` - The command to install your frontend dependencies
      - `frontend:build` - The command to build your frontend

v2/cmd/wails/internal/commands/generate/template/base/main.tmpl.go

@@ -33,10 +33,10 @@ func main() {
 		HideWindowOnClose: false,
 		RGBA:              &options.RGBA{255, 255, 255, 255},
 		Assets:            assets,
-		LogLevel:   logger.DEBUG,
-		OnStartup:  app.startup,
-		OnDomReady: app.domReady,
-		OnShutdown: app.shutdown,
+		LogLevel:          logger.DEBUG,
+		OnStartup:         app.startup,
+		OnDomReady:        app.domReady,
+		OnShutdown:        app.shutdown,
 		Bind: []interface{}{
 			app,
 		},

v2/cmd/wails/internal/commands/generate/template/base/package.json

@@ -0,0 +1,16 @@
+{
+  "name": "{{.ProjectName}}",
+  "author": "",
+  "private": true,
+  "scripts": {
+    "install": "go install github.com/wailsapp/wails/v2/cmd/wails@latest",
+    "build": "wails build --clean",
+    "build:macos": "npm run build -- --platform darwin/universal",
+    "build:macos-arm": "npm run build -- --platform darwin/arm64",
+    "build:macos-intel": "npm run build -- --platform darwin",
+    "build:windows": "npm run build -- --platform windows/amd64"
+  },
+  "workspaces": [
+    "frontend"
+  ]
+}

v2/cmd/wails/internal/commands/generate/template/base/wails.tmpl.json

@@ -1,7 +1,6 @@
 {
   "name": "{{.ProjectName}}",
   "outputfilename": "{{.BinaryName}}",
-  "assetdir": "frontend/dist",
   "frontend:install": "npm install",
   "frontend:build": "npm run build",
   "author": {

v2/cmd/wails/internal/commands/generate/template/template.go

@@ -158,18 +158,17 @@ func processPackageJSON(frontendDir string) error {
 		return nil
 	}
 
-	data, err := os.ReadFile(packageJSON)
+	json, err := os.ReadFile(packageJSON)
 	if err != nil {
 		return err
 	}
-	json := string(data)
 
 	// We will ignore these errors - it's not critical
 	println("Updating package.json data...")
-	json, _ = sjson.Set(json, "name", "{{.ProjectName}}")
-	json, _ = sjson.Set(json, "author", "{{.AuthorName}}")
+	json, _ = sjson.SetBytes(json, "name", "{{.ProjectName}}")
+	json, _ = sjson.SetBytes(json, "author", "{{.AuthorName}}")
 
-	err = os.WriteFile(packageJSON, []byte(json), 0644)
+	err = os.WriteFile(packageJSON, json, 0644)
 	if err != nil {
 		return err
 	}

v2/cmd/wails/internal/commands/initialise/templates/ides/goland/workspace.tmpl.xml

@@ -36,7 +36,6 @@
             <working_directory value="$PROJECT_DIR$"/>
             <go_parameters value="-gcflags &quot;all=-N -l&quot; -tags dev -o {{.PathToDesktopBinary}}"/>
             <useCustomBuildTags value="true"/>
-            <parameters value="-assetdir {{.AssetDir}}"/>
             <envs>
                 <env name="CGO_ENABLED" value="&quot;{{.CGOEnabled}}&quot;"/>
             </envs>

v2/cmd/wails/internal/commands/initialise/templates/ides/vscode/launch.tmpl.json

@@ -9,11 +9,7 @@
       "program": "${workspaceFolder}/{{.PathToDesktopBinary}}",
       "preLaunchTask": "build",
       "cwd": "${workspaceFolder}",
-      "env": {},
-      "args": [
-        "-assetdir",
-        "{{.AssetDir}}"
-      ]
+      "env": {}
     }
   ]
 }

v2/cmd/wails/internal/commands/initialise/templates/templates.go

@@ -4,15 +4,14 @@ import (
 	"embed"
 	"encoding/json"
 	"fmt"
-	"github.com/go-git/go-git/v5"
 	gofs "io/fs"
-	"io/ioutil"
 	"log"
 	"os"
 	"path/filepath"
 	"runtime"
 	"strings"
 
+	"github.com/go-git/go-git/v5"
 	"github.com/pkg/errors"
 
 	"github.com/leaanthony/debme"
@@ -43,7 +42,6 @@ type Data struct {
 	AuthorNameAndEmail string
 	WailsDirectory     string
 	GoSDKPath          string
-	AssetDir           string
 	WindowsFlags       string
 	CGOEnabled         string
 	OutputFile         string
@@ -61,7 +59,6 @@ type Options struct {
 	InitGit             bool
 	AuthorName          string
 	AuthorEmail         string
-	AssetDir            string
 	IDE                 string
 	ProjectNameFilename string // The project name but as a valid filename
 	WailsVersion        string
@@ -262,7 +259,6 @@ func Install(options *Options) (bool, *Template, error) {
 		AuthorName:     options.AuthorName,
 		WailsVersion:   options.WailsVersion,
 		GoSDKPath:      options.GoSDKPath,
-		AssetDir:       options.AssetDir,
 	}
 
 	// Create a formatted name and email combo.
@@ -295,7 +291,7 @@ func Install(options *Options) (bool, *Template, error) {
 // Clones the given uri and returns the temporary cloned directory
 func gitclone(options *Options) (string, error) {
 	// Create temporary directory
-	dirname, err := ioutil.TempDir("", "wails-template-*")
+	dirname, err := os.MkdirTemp("", "wails-template-*")
 	if err != nil {
 		return "", err
 	}
@@ -409,22 +405,6 @@ func installIDEFiles(o ideOptions) error {
 		binaryName += ".exe"
 	}
 
-	// Parse wails.json for assetdir
-	wailsJSONBytes, err := os.ReadFile(filepath.Join(o.options.TargetDir, "wails.json"))
-	if err != nil {
-		return err
-	}
-	var wailsJSON map[string]interface{}
-	err = json.Unmarshal(wailsJSONBytes, &wailsJSON)
-	if err != nil {
-		return err
-	}
-	assetDir := wailsJSON["assetdir"]
-	if assetDir == "" {
-		return fmt.Errorf("Unable to find 'assetdir' in 'wails.json' ")
-	}
-
-	o.options.AssetDir = assetDir.(string)
 	o.options.PathToDesktopBinary = filepath.ToSlash(filepath.Join("build", "bin", binaryName))
 
 	o.options.WindowsFlags = ""

v2/cmd/wails/internal/commands/initialise/templates/templates/svelte/frontend/src/global.css

@@ -2,7 +2,7 @@
 html {
 	text-align: center;
 	color: white;
-	background-color: rgba(0, 0, 0, 0);
+	background-color: rgba(33, 37, 43, 0.2);
 	width: 100%;
 	height: 100%;
 }

v2/cmd/wails/internal/commands/initialise/templates/templates/svelte/main.tmpl.go

@@ -36,7 +36,7 @@ func main() {
 		Frameless:         false,
 		StartHidden:       false,
 		HideWindowOnClose: false,
-		RGBA:              &options.RGBA{R: 0, G: 0, B: 0, A: 0},
+		RGBA:              &options.RGBA{R: 33, G: 37, B: 43, A: 255},
 		Assets:            assets,
 		LogLevel:          logger.DEBUG,
 		OnStartup:         app.startup,

v2/cmd/wails/internal/commands/initialise/templates/templates/svelte/wails.tmpl.json

@@ -1,9 +1,9 @@
 {
   "name": "{{.ProjectName}}",
   "outputfilename": "{{.BinaryName}}",
-  "assetdir": "frontend/dist",
   "frontend:install": "npm install",
   "frontend:build": "npm run build",
+  "wailsjsdir": "./frontend",
   "author": {
     "name": "{{.AuthorName}}",
     "email": "{{.AuthorEmail}}"

v2/cmd/wails/internal/commands/initialise/templates/templates/vanilla/frontend/src/main.css

@@ -1,12 +1,11 @@
 html {
-  background-color: rgba(33, 37, 43, 0);
+  background-color: rgba(33, 37, 43, 0.2);
   text-align: center;
   color: white;
 }
 
 body {
   margin: 0;
-  color: white;
   font-family: "Nunito", -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto",
   "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue",
   sans-serif;

v2/cmd/wails/internal/commands/initialise/templates/templates/vanilla/main.tmpl.go

@@ -36,7 +36,7 @@ func main() {
 		Frameless:         false,
 		StartHidden:       false,
 		HideWindowOnClose: false,
-		RGBA:              &options.RGBA{R: 0, G: 0, B: 0, A: 0},
+		RGBA:              &options.RGBA{R: 33, G: 37, B: 43, A: 255},
 		Assets:            assets,
 		LogLevel:          logger.DEBUG,
 		OnStartup:         app.startup,

v2/cmd/wails/internal/commands/initialise/templates/templates/vanilla/wails.tmpl.json

@@ -1,7 +1,7 @@
 {
   "name": "{{.ProjectName}}",
   "outputfilename": "{{.BinaryName}}",
-  "assetdir": "frontend/src",
+  "wailsjsdir": "./frontend",
   "author": {
     "name": "{{.AuthorName}}",
     "email": "{{.AuthorEmail}}"

v2/cmd/wails/internal/version.go

@@ -1,3 +1,3 @@
 package internal
 
-var Version = "v2.0.0-beta.15"
+var Version = "v2.0.0-beta.22"

v2/go.mod

@@ -22,13 +22,13 @@ require (
 	github.com/leaanthony/debme v1.2.1
 	github.com/leaanthony/go-ansi-parser v1.0.1
 	github.com/leaanthony/go-common-file-dialog v1.0.3
-	github.com/leaanthony/go-webview2 v0.0.0-20211022194343-1e4c8d4226f3
+	github.com/leaanthony/go-webview2 v0.0.0-20211202091502-64deee9a37e3
 	github.com/leaanthony/gosod v1.0.3
 	github.com/leaanthony/idgen v1.0.0
 	github.com/leaanthony/slicer v1.5.0
 	github.com/leaanthony/typescriptify-golang-structs v0.1.7
 	github.com/leaanthony/webview2runtime v1.1.0
-	github.com/leaanthony/winc v0.0.0-20210921073452-54963136bf18
+	github.com/leaanthony/winc v0.0.0-20211202091710-9931d43181ff
 	github.com/leaanthony/winicon v1.0.0
 	github.com/matryer/is v1.4.0
 	github.com/olekukonko/tablewriter v0.0.4
@@ -40,7 +40,6 @@ require (
 	github.com/tdewolff/test v1.0.6 // indirect
 	github.com/tidwall/sjson v1.1.7
 	github.com/wzshiming/ctc v1.2.3
-	github.com/xyproto/xpm v1.2.1
 	github.com/ztrue/tracerr v0.3.0
 	golang.org/x/mod v0.4.1
 	golang.org/x/net v0.0.0-20210510120150-4163338589ed
@@ -55,7 +54,7 @@ require (
 	github.com/emirpasic/gods v1.12.0 // indirect
 	github.com/fasthttp/websocket v0.0.0-20200320073529-1554a54587ab // indirect
 	github.com/go-git/gcfg v1.5.0 // indirect
-	github.com/go-ole/go-ole v1.2.5 // indirect
+	github.com/go-ole/go-ole v1.2.6 // indirect
 	github.com/google/go-cmp v0.5.5 // indirect
 	github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 // indirect
 	github.com/jchv/go-winloader v0.0.0-20210711035445-715c2860da7e // indirect

v2/go.sum

@@ -45,8 +45,8 @@ github.com/go-git/go-git-fixtures/v4 v4.0.2-0.20200613231340-f56387b50c12/go.mod
 github.com/go-git/go-git/v5 v5.3.0 h1:8WKMtJR2j8RntEXR/uvTKagfEt4GYlwQ7mntE4+0GWc=
 github.com/go-git/go-git/v5 v5.3.0/go.mod h1:xdX4bWJ48aOrdhnl2XqHYstHbbp6+LFS4r4X+lNVprw=
 github.com/go-ole/go-ole v1.2.4/go.mod h1:XCwSNxSkXRo4vlyPy93sltvi/qJq0jqQhjqQNIwKuxM=
-github.com/go-ole/go-ole v1.2.5 h1:t4MGB5xEDZvXI+0rMjjsfBsD7yAgp/s9ZDkL1JndXwY=
-github.com/go-ole/go-ole v1.2.5/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
+github.com/go-ole/go-ole v1.2.6 h1:/Fpf6oFPoeFik9ty7siob0G6Ke8QvQEuVcuChpwXzpY=
+github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
 github.com/go-playground/assert/v2 v2.0.1/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
 github.com/go-playground/locales v0.13.0 h1:HyWk6mgj5qFqCT5fjGBuRArbVDfE4hi8+e8ceBS/t7Q=
 github.com/go-playground/locales v0.13.0/go.mod h1:taPMhCMXrRLJO55olJkUXHZBHCxTMfnGwq/HNwmWNS8=
@@ -118,8 +118,8 @@ github.com/leaanthony/go-ansi-parser v1.0.1 h1:97v6c5kYppVsbScf4r/VZdXyQ21KQIfeQ
 github.com/leaanthony/go-ansi-parser v1.0.1/go.mod h1:7arTzgVI47srICYhvgUV4CGd063sGEeoSlych5yeSPM=
 github.com/leaanthony/go-common-file-dialog v1.0.3 h1:O0uGjKnWtdEADGrkg+TyAAbZylykMwwx/MNEXn9fp+Y=
 github.com/leaanthony/go-common-file-dialog v1.0.3/go.mod h1:TGhEc9eSJgRsupZ+iH1ZgAOnEo9zp05cRH2j08RPrF0=
-github.com/leaanthony/go-webview2 v0.0.0-20211022194343-1e4c8d4226f3 h1:qhgrg3MhFRAIvtaqoqI+SrT+0wDYpxDMp9e3cvcxMpI=
-github.com/leaanthony/go-webview2 v0.0.0-20211022194343-1e4c8d4226f3/go.mod h1:lS5ds4bruPk9d7lzdF/OH31Z0YCerI6MmHNFGsWoUnM=
+github.com/leaanthony/go-webview2 v0.0.0-20211202091502-64deee9a37e3 h1:vKdQzUWiq5wtVBLTTeYuikcgQbF/HtYaOmxGzbfkcT0=
+github.com/leaanthony/go-webview2 v0.0.0-20211202091502-64deee9a37e3/go.mod h1:iX54IaVk1FnDqMuHJ47VYLPQOcVqQiOe9SJACt9CAbU=
 github.com/leaanthony/gosod v1.0.3 h1:Fnt+/B6NjQOVuCWOKYRREZnjGyvg+mEhd1nkkA04aTQ=
 github.com/leaanthony/gosod v1.0.3/go.mod h1:BJ2J+oHsQIyIQpnLPjnqFGTMnOZXDbvWtRCSG7jGxs4=
 github.com/leaanthony/idgen v1.0.0 h1:IZreR+JGEzFV4yeVuBZA25gM0keUoFy+RDUldncQ+Jw=
@@ -130,8 +130,8 @@ github.com/leaanthony/typescriptify-golang-structs v0.1.7 h1:yoznzWzyxkO/iWdlpq+
 github.com/leaanthony/typescriptify-golang-structs v0.1.7/go.mod h1:cWtOkiVhMF77e6phAXUcfNwYmMwCJ67Sij24lfvi9Js=
 github.com/leaanthony/webview2runtime v1.1.0 h1:N0pv55ift8XtqozIp4PNOtRCJ/Qdd/qzx80lUpalS4c=
 github.com/leaanthony/webview2runtime v1.1.0/go.mod h1:hH9GnWCve3DYzNaPOcPbhHQ7fodXR1QJNsnwixid4Tk=
-github.com/leaanthony/winc v0.0.0-20210921073452-54963136bf18 h1:5iOd93PZbpH4Iir8QkC4coFD+zEQEZSIRcjwjTFZkr0=
-github.com/leaanthony/winc v0.0.0-20210921073452-54963136bf18/go.mod h1:KEbMsKoznsebyGHwLk5LqkFOxL5uXSRdvpP4+avmAMs=
+github.com/leaanthony/winc v0.0.0-20211202091710-9931d43181ff h1:FwGObElCr/T/xy8S9IKDjWsNcfJHGxgjRl/GIbcseoQ=
+github.com/leaanthony/winc v0.0.0-20211202091710-9931d43181ff/go.mod h1:KEbMsKoznsebyGHwLk5LqkFOxL5uXSRdvpP4+avmAMs=
 github.com/leaanthony/winicon v1.0.0 h1:ZNt5U5dY71oEoKZ97UVwJRT4e+5xo5o/ieKuHuk8NqQ=
 github.com/leaanthony/winicon v1.0.0/go.mod h1:en5xhijl92aphrJdmRPlh4NI1L6wq3gEm0LpXAPghjU=
 github.com/leodido/go-urn v1.2.0 h1:hpXL4XnriNwQ/ABnpepYM/1vCLWNDfUNts8dX3xTG6Y=
@@ -213,8 +213,6 @@ github.com/wzshiming/winseq v0.0.0-20200112104235-db357dc107ae h1:tpXvBXC3hpQBDC
 github.com/wzshiming/winseq v0.0.0-20200112104235-db357dc107ae/go.mod h1:VTAq37rkGeV+WOybvZwjXiJOicICdpLCN8ifpISjK20=
 github.com/xanzy/ssh-agent v0.3.0 h1:wUMzuKtKilRgBAD1sUb8gOwwRr2FGoBVumcjoOACClI=
 github.com/xanzy/ssh-agent v0.3.0/go.mod h1:3s9xbODqPuuhK9JV1R321M/FlMZSBvE5aY6eAcqrDh0=
-github.com/xyproto/xpm v1.2.1 h1:trdvGjjWBsOOKzBBUPT6JvaIQM3acJEEYfbxN7M96wg=
-github.com/xyproto/xpm v1.2.1/go.mod h1:cMnesLsD0PBXLgjDfTDEaKr8XyTFsnP1QycSqRw7BiY=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/ztrue/tracerr v0.3.0 h1:lDi6EgEYhPYPnKcjsYzmWw4EkFEoA/gfe+I9Y5f+h6Y=
 github.com/ztrue/tracerr v0.3.0/go.mod h1:qEalzze4VN9O8tnhBXScfCrmoJo10o8TN5ciKjm6Mww=
@@ -252,10 +250,10 @@ golang.org/x/sys v0.0.0-20200107162124-548cf772de50/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200810151505-1b9f1253b3ed/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200814200057-3d37ad5750ed/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210218145245-beda7e5e158e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210320140829-1e4c9ba3b0c4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210324051608-47abb6519492/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=

v2/init.go

@@ -1,3 +1,4 @@
+//go:build !windows
 // +build !windows
 
 package wails

v2/internal/app/default.go

@@ -1,3 +1,4 @@
+//go:build !desktop && !hybrid && !server && !dev
 // +build !desktop,!hybrid,!server,!dev
 
 package app

v2/internal/app/hybrid.go

@@ -1,3 +1,4 @@
+//go:build !server && !desktop && hybrid
 // +build !server,!desktop,hybrid
 
 package app

v2/internal/app/preflight_default.go

@@ -1,4 +1,5 @@
-//+build !windows
+//go:build !windows
+// +build !windows
 
 package app
 

v2/internal/app/preflight_windows.go

@@ -1,4 +1,5 @@
-//+build windows
+//go:build windows
+// +build windows
 
 package app
 

v2/internal/appng/app_bindings.go

@@ -61,6 +61,9 @@ func generateBindings(bindings *binding.Bindings) error {
 		return err
 	}
 
+	if projectConfig.WailsJSDir == "" {
+		projectConfig.WailsJSDir = filepath.Join(cwd, "frontend")
+	}
 	wrapperDir := filepath.Join(projectConfig.WailsJSDir, "wailsjs", "runtime")
 	_ = os.RemoveAll(wrapperDir)
 	extractor := gosod.New(wrapper.RuntimeWrapper)
@@ -100,6 +103,12 @@ func generateBindings(bindings *binding.Bindings) error {
 		return err
 	}
 
+	bindingsTypes := filepath.Join(targetDir, "bindings.d.ts")
+	err = bindings.GenerateBackendTS(bindingsTypes)
+	if err != nil {
+		return err
+	}
+
 	return nil
 
 }

v2/internal/appng/app_default_linux.go

@@ -0,0 +1,32 @@
+//go:build !dev && !production && !bindings && linux
+
+package appng
+
+import (
+	"fmt"
+
+	"github.com/wailsapp/wails/v2/pkg/options"
+)
+
+// App defines a Wails application structure
+type App struct{}
+
+func (a *App) Run() error {
+	return nil
+}
+
+// CreateApp creates the app!
+func CreateApp(_ *options.App) (*App, error) {
+	//	result := w32.MessageBox(0,
+	//		`Wails applications will not build without the correct build tags.
+	//Please use "wails build" or press "OK" to open the documentation on how to use "go build"`,
+	//		"Error",
+	//		w32.MB_ICONERROR|w32.MB_OKCANCEL)
+	//	if result == 1 {
+	//		exec.Command("rundll32", "url.dll,FileProtocolHandler", "https://wails.io").Start()
+	//	}
+
+	err := fmt.Errorf(`Wails applications will not build without the correct build tags.`)
+
+	return nil, err
+}

v2/internal/appng/app_dev.go

@@ -5,6 +5,10 @@ package appng
 
 import (
 	"context"
+	"embed"
+	"flag"
+	"fmt"
+	iofs "io/fs"
 	"os"
 	"path/filepath"
 
@@ -58,17 +62,62 @@ func CreateApp(appoptions *options.App) (*App, error) {
 	myLogger.SetLogLevel(appoptions.LogLevel)
 
 	// Check for CLI Flags
+	var assetdirFlag *string
+	var devServerURLFlag *string
+	var loglevelFlag *string
 
 	assetdir := os.Getenv("assetdir")
+	if assetdir == "" {
+		assetdirFlag = flag.String("assetdir", "", "Directory to serve assets")
+	}
 	devServerURL := os.Getenv("devserverurl")
+	if devServerURL == "" {
+		devServerURLFlag = flag.String("devserverurl", "", "URL of development server")
+	}
+
 	loglevel := os.Getenv("loglevel")
+	if loglevel == "" {
+		loglevelFlag = flag.String("loglevel", "debug", "Loglevel to use - Trace, Debug, Info, Warning, Error")
+	}
+
+	// If we weren't given the assetdir in the environment variables
+	if assetdir == "" {
+		flag.Parse()
+		if assetdirFlag != nil {
+			assetdir = *assetdirFlag
+		}
+		if devServerURLFlag != nil {
+			devServerURL = *devServerURLFlag
+		}
+		if loglevelFlag != nil {
+			loglevel = *loglevelFlag
+		}
+	}
+
+	if assetdir == "" {
+		// If no assetdir has been defined, let's try to infer it from the project root and the asset FS.
+		assetdir, err = tryInferAssetDirFromFS(appoptions.Assets)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	if assetdir != "" {
+		// Let's override the assets to serve from on disk, if needed
+		absdir, err := filepath.Abs(assetdir)
+		if err != nil {
+			return nil, err
+		}
+
+		myLogger.Info("Serving assets from disk: %s", absdir)
+		appoptions.Assets = os.DirFS(absdir)
+
+		ctx = context.WithValue(ctx, "assetdir", assetdir)
+	}
 
 	if devServerURL != "" {
 		ctx = context.WithValue(ctx, "devserverurl", devServerURL)
 	}
-	if assetdir != "" {
-		ctx = context.WithValue(ctx, "assetdir", assetdir)
-	}
 
 	if loglevel != "" {
 		level, err := pkglogger.StringToLogLevel(loglevel)
@@ -165,6 +214,42 @@ func generateBindings(bindings *binding.Bindings) error {
 	if err != nil {
 		return err
 	}
+
+	bindingsTypes := filepath.Join(targetDir, "bindings.d.ts")
+	err = bindings.GenerateBackendTS(bindingsTypes)
+	if err != nil {
+		return err
+	}
+
 	return nil
 
 }
+
+func tryInferAssetDirFromFS(assets iofs.FS) (string, error) {
+	if _, isEmbedFs := assets.(embed.FS); !isEmbedFs {
+		// We only infer the assetdir for embed.FS assets
+		return "", nil
+	}
+
+	path, err := fs.FindPathToFile(assets, "index.html")
+	if err != nil {
+		return "", err
+	}
+
+	path, err = filepath.Abs(path)
+	if err != nil {
+		return "", err
+	}
+
+	if _, err := os.Stat(filepath.Join(path, "index.html")); err != nil {
+		if os.IsNotExist(err) {
+			err = fmt.Errorf(
+				"inferred assetdir '%s' does not exist or does not contain an 'index.html' file, "+
+					"please specify it with -assetdir or set it in wails.json",
+				path)
+		}
+		return "", err
+	}
+
+	return path, nil
+}

v2/internal/appng/app_linux.go

@@ -0,0 +1,15 @@
+//go:build linux && !bindings
+
+package appng
+
+import (
+	"github.com/wailsapp/wails/v2/internal/logger"
+	"github.com/wailsapp/wails/v2/pkg/options"
+)
+
+func PreflightChecks(options *options.App, logger *logger.Logger) error {
+
+	_ = options
+
+	return nil
+}

v2/internal/appng/app_production.go

@@ -35,6 +35,9 @@ type App struct {
 
 func (a *App) Run() error {
 	err := a.frontend.Run(a.ctx)
+	if a.shutdownCallback != nil {
+		a.shutdownCallback(a.ctx)
+	}
 	return err
 }
 
@@ -78,6 +81,9 @@ func CreateApp(appoptions *options.App) (*App, error) {
 	appFrontend := desktop.NewFrontend(ctx, appoptions, myLogger, appBindings, messageDispatcher)
 	eventHandler.AddFrontend(appFrontend)
 
+	// Attach logger to context
+	ctx = context.WithValue(ctx, "logger", myLogger)
+
 	result := &App{
 		ctx:              ctx,
 		frontend:         appFrontend,

v2/internal/assetdb/filesystem.go

@@ -1,4 +1,6 @@
+//go:build !desktop
 // +build !desktop
+
 package assetdb
 
 import (

v2/internal/binding/generate.go

@@ -122,6 +122,83 @@ export default go;`)
 	return os.WriteFile(targetfile, output.Bytes(), 0755)
 }
 
+// GenerateBackendTS generates typescript bindings for
+// the bound methods.
+func (b *Bindings) GenerateBackendTS(targetfile string) error {
+
+	store := b.db.store
+	var output bytes.Buffer
+
+	output.WriteString("interface go {\n")
+
+	var sortedPackageNames slicer.StringSlicer
+	for packageName := range store {
+		sortedPackageNames.Add(packageName)
+	}
+	sortedPackageNames.Sort()
+	sortedPackageNames.Each(func(packageName string) {
+		packages := store[packageName]
+		output.WriteString(fmt.Sprintf("  \"%s\": {", packageName))
+		output.WriteString("\n")
+		var sortedStructNames slicer.StringSlicer
+		for structName := range packages {
+			sortedStructNames.Add(structName)
+		}
+		sortedStructNames.Sort()
+
+		sortedStructNames.Each(func(structName string) {
+			structs := packages[structName]
+			output.WriteString(fmt.Sprintf("    \"%s\": {", structName))
+			output.WriteString("\n")
+
+			var sortedMethodNames slicer.StringSlicer
+			for methodName := range structs {
+				sortedMethodNames.Add(methodName)
+			}
+			sortedMethodNames.Sort()
+
+			sortedMethodNames.Each(func(methodName string) {
+				methodDetails := structs[methodName]
+				output.WriteString(fmt.Sprintf("\t\t%s(", methodName))
+
+				var args slicer.StringSlicer
+				for count, input := range methodDetails.Inputs {
+					arg := fmt.Sprintf("arg%d", count+1)
+					args.Add(arg + ":" + goTypeToTypescriptType(input.TypeName))
+				}
+				output.WriteString(args.Join(",") + "):")
+				returnType := "Promise"
+				if methodDetails.OutputCount() > 0 {
+					firstType := goTypeToTypescriptType(methodDetails.Outputs[0].TypeName)
+					returnType += "<" + firstType
+					if methodDetails.OutputCount() == 2 {
+						secondType := goTypeToTypescriptType(methodDetails.Outputs[1].TypeName)
+						returnType += "|" + secondType
+					}
+					returnType += ">"
+				} else {
+					returnType = "Promise<void>"
+				}
+				output.WriteString(returnType + "\n")
+			})
+
+			output.WriteString("    },\n")
+		})
+		output.WriteString("  }\n\n")
+	})
+	output.WriteString("}\n")
+
+	globals := `
+declare global {
+	interface Window {
+		go: go;
+	}
+}
+`
+	output.WriteString(globals)
+	return os.WriteFile(targetfile, output.Bytes(), 0755)
+}
+
 func goTypeToJSDocType(input string) string {
 	switch true {
 	case input == "string":
@@ -139,7 +216,7 @@ func goTypeToJSDocType(input string) string {
 		return "string"
 	case strings.HasPrefix(input, "[]"):
 		arrayType := goTypeToJSDocType(input[2:])
-		return "Array.<" + arrayType + ">"
+		return "Array<" + arrayType + ">"
 	default:
 		if strings.ContainsRune(input, '.') {
 			return strings.Split(input, ".")[1]
@@ -147,3 +224,11 @@ func goTypeToJSDocType(input string) string {
 		return "any"
 	}
 }
+
+func goTypeToTypescriptType(input string) string {
+	if strings.HasPrefix(input, "[]") {
+		arrayType := goTypeToJSDocType(input[2:])
+		return "Array<" + arrayType + ">"
+	}
+	return goTypeToJSDocType(input)
+}

v2/internal/binding/reflect.go

@@ -78,10 +78,16 @@ func (b *Bindings) getMethods(value interface{}) ([]*BoundMethod, error) {
 			input := methodType.In(inputIndex)
 			thisParam := newParameter("", input)
 
+			thisInput := input
+
+			if thisInput.Kind() == reflect.Slice {
+				thisInput = thisInput.Elem()
+			}
+
 			// Process struct pointer params
-			if input.Kind() == reflect.Ptr {
-				if input.Elem().Kind() == reflect.Struct {
-					typ := input.Elem()
+			if thisInput.Kind() == reflect.Ptr {
+				if thisInput.Elem().Kind() == reflect.Struct {
+					typ := thisInput.Elem()
 					a := reflect.New(typ)
 					s := reflect.Indirect(a).Interface()
 					b.converter.Add(s)
@@ -89,8 +95,8 @@ func (b *Bindings) getMethods(value interface{}) ([]*BoundMethod, error) {
 			}
 
 			// Process struct params
-			if input.Kind() == reflect.Struct {
-				a := reflect.New(input)
+			if thisInput.Kind() == reflect.Struct {
+				a := reflect.New(thisInput)
 				s := reflect.Indirect(a).Interface()
 				b.converter.Add(s)
 			}
@@ -108,6 +114,30 @@ func (b *Bindings) getMethods(value interface{}) ([]*BoundMethod, error) {
 		for outputIndex := 0; outputIndex < outputParamCount; outputIndex++ {
 			output := methodType.Out(outputIndex)
 			thisParam := newParameter("", output)
+
+			thisOutput := output
+
+			if thisOutput.Kind() == reflect.Slice {
+				thisOutput = thisOutput.Elem()
+			}
+
+			// Process struct pointer params
+			if thisOutput.Kind() == reflect.Ptr {
+				if thisOutput.Elem().Kind() == reflect.Struct {
+					typ := thisOutput.Elem()
+					a := reflect.New(typ)
+					s := reflect.Indirect(a).Interface()
+					b.converter.Add(s)
+				}
+			}
+
+			// Process struct params
+			if thisOutput.Kind() == reflect.Struct {
+				a := reflect.New(thisOutput)
+				s := reflect.Indirect(a).Interface()
+				b.converter.Add(s)
+			}
+
 			outputs = append(outputs, thisParam)
 		}
 		boundMethod.Outputs = outputs

v2/internal/ffenestri/ffenestri_client.go

@@ -1,3 +1,4 @@
+//go:build !windows
 // +build !windows
 
 package ffenestri

v2/internal/ffenestri/ffenestri_client_windows.go

@@ -1,3 +1,4 @@
+//go:build windows
 // +build windows
 
 package ffenestri

v2/internal/ffenestri/windows/wv2runtime/browser.go

@@ -1,3 +1,4 @@
+//go:build wv2runtime.browser
 // +build wv2runtime.browser
 
 package wv2runtime

v2/internal/ffenestri/windows/wv2runtime/download.go

@@ -1,6 +1,5 @@
-// +build !wv2runtime.error
-// +build !wv2runtime.browser
-// +build !wv2runtime.embed
+//go:build !wv2runtime.error && !wv2runtime.browser && !wv2runtime.embed
+// +build !wv2runtime.error,!wv2runtime.browser,!wv2runtime.embed
 
 package wv2runtime
 

v2/internal/ffenestri/windows/wv2runtime/embed.go

@@ -1,3 +1,4 @@
+//go:build wv2runtime.embed
 // +build wv2runtime.embed
 
 package wv2runtime

v2/internal/ffenestri/windows/wv2runtime/error.go

@@ -1,3 +1,4 @@
+//go:build wv2runtime.error
 // +build wv2runtime.error
 
 package wv2runtime

v2/internal/ffenestri/windows_checkboxes.go

@@ -1,14 +1,16 @@
-//+build windows
+//go:build windows
+// +build windows
 
 package ffenestri
 
 import (
 	"fmt"
-	"github.com/leaanthony/slicer"
-	"github.com/wailsapp/wails/v2/internal/menumanager"
 	"os"
 	"sync"
 	"text/tabwriter"
+
+	"github.com/leaanthony/slicer"
+	"github.com/wailsapp/wails/v2/internal/menumanager"
 )
 
 /* ---------------------------------------------------------------------------------

v2/internal/ffenestri/windows_errorhandler_debug.go

@@ -1,4 +1,5 @@
-//+build windows,debug
+//go:build windows && debug
+// +build windows,debug
 
 package ffenestri
 

v2/internal/ffenestri/windows_errorhandler_production.go

@@ -1,3 +1,4 @@
+//go:build windows && !debug
 // +build windows,!debug
 
 package ffenestri

v2/internal/ffenestri/windows_menu.go

@@ -1,4 +1,5 @@
-//+build windows
+//go:build windows
+// +build windows
 
 package ffenestri
 

v2/internal/ffenestri/windows_menu_cache.go

@@ -1,4 +1,5 @@
-//+build windows
+//go:build windows
+// +build windows
 
 package ffenestri
 

v2/internal/ffenestri/windows_radiogroup.go

@@ -1,4 +1,5 @@
-//+build windows
+//go:build windows
+// +build windows
 
 package ffenestri
 

v2/internal/ffenestri/windows_win32.go

@@ -1,4 +1,5 @@
-//+build windows
+//go:build windows
+// +build windows
 
 package ffenestri
 

v2/internal/frontend/assetserver/assetserver_browser_dev.go

@@ -5,11 +5,13 @@ package assetserver
 
 import (
 	"bytes"
-	"github.com/wailsapp/wails/v2/internal/frontend/runtime"
-	"github.com/wailsapp/wails/v2/pkg/options"
-	"golang.org/x/net/html"
-	"path/filepath"
+	"context"
+	"io/fs"
 	"strings"
+
+	"github.com/wailsapp/wails/v2/internal/frontend/runtime"
+	"github.com/wailsapp/wails/v2/internal/logger"
+	"golang.org/x/net/html"
 )
 
 /*
@@ -19,35 +21,41 @@ It injects a websocket based IPC script into `index.html`.
 
 */
 
-import (
-	"os"
-)
-
 type BrowserAssetServer struct {
-	runtimeJS  []byte
-	assetdir   string
-	appOptions *options.App
+	assets    fs.FS
+	runtimeJS []byte
+	logger    *logger.Logger
 }
 
-func NewBrowserAssetServer(assetdir string, bindingsJSON string, appOptions *options.App) (*BrowserAssetServer, error) {
-	result := &BrowserAssetServer{
-		assetdir:   assetdir,
-		appOptions: appOptions,
+func NewBrowserAssetServer(ctx context.Context, assets fs.FS, bindingsJSON string) (*BrowserAssetServer, error) {
+	result := &BrowserAssetServer{}
+	_logger := ctx.Value("logger")
+	if _logger != nil {
+		result.logger = _logger.(*logger.Logger)
+	}
+
+	var err error
+	result.assets, err = prepareAssetsForServing(assets)
+	if err != nil {
+		return nil, err
 	}
 
 	var buffer bytes.Buffer
 	buffer.WriteString(`window.wailsbindings='` + bindingsJSON + `';` + "\n")
 	buffer.Write(runtime.RuntimeDesktopJS)
 	result.runtimeJS = buffer.Bytes()
+
 	return result, nil
 }
 
-func (a *BrowserAssetServer) loadFileFromDisk(filename string) ([]byte, error) {
-	return os.ReadFile(filepath.Join(a.assetdir, filename))
+func (d *BrowserAssetServer) LogDebug(message string, args ...interface{}) {
+	if d.logger != nil {
+		d.logger.Debug("[BrowserAssetServer] "+message, args...)
+	}
 }
 
 func (a *BrowserAssetServer) processIndexHTML() ([]byte, error) {
-	indexHTML, err := a.loadFileFromDisk("index.html")
+	indexHTML, err := fs.ReadFile(a.assets, "index.html")
 	if err != nil {
 		return nil, err
 	}
@@ -97,15 +105,9 @@ func (a *BrowserAssetServer) Load(filename string) ([]byte, string, error) {
 	case "/wails/ipc.js":
 		content = runtime.WebsocketIPC
 	default:
-		content, err = a.loadFileFromDisk(filename)
-		if strings.HasSuffix(filename, ".js") {
-			var buffer bytes.Buffer
-			buffer.WriteString("window.awaitIPC('" + filename + "', ()=>{")
-			buffer.Write(content)
-			buffer.WriteString(`
-});`)
-			content = buffer.Bytes()
-		}
+		filename = strings.TrimPrefix(filename, "/")
+		a.LogDebug("Loading file: %s", filename)
+		content, err = fs.ReadFile(a.assets, filename)
 	}
 	if err != nil {
 		return nil, "", err

v2/internal/frontend/assetserver/assetserver_common.go

@@ -0,0 +1,25 @@
+package assetserver
+
+import (
+	iofs "io/fs"
+	"path"
+
+	"github.com/wailsapp/wails/v2/internal/fs"
+)
+
+func prepareAssetsForServing(assets iofs.FS) (iofs.FS, error) {
+	if _, err := assets.Open("."); err != nil {
+		return nil, err
+	}
+
+	subDir, err := fs.FindPathToFile(assets, "index.html")
+	if err != nil {
+		return nil, err
+	}
+
+	assets, err = iofs.Sub(assets, path.Clean(subDir))
+	if err != nil {
+		return nil, err
+	}
+	return assets, nil
+}

v2/internal/frontend/assetserver/assetserver_desktop.go

@@ -3,26 +3,21 @@ package assetserver
 import (
 	"bytes"
 	"context"
-	"embed"
-	"fmt"
-	"github.com/leaanthony/debme"
-	"github.com/leaanthony/slicer"
-	"github.com/wailsapp/wails/v2/internal/frontend/runtime"
-	"github.com/wailsapp/wails/v2/internal/logger"
 	"io/fs"
 	"log"
-	"path/filepath"
 	"strings"
+
+	"github.com/wailsapp/wails/v2/internal/frontend/runtime"
+	"github.com/wailsapp/wails/v2/internal/logger"
 )
 
 type DesktopAssetServer struct {
-	assets    debme.Debme
+	assets    fs.FS
 	runtimeJS []byte
-	assetdir  string
 	logger    *logger.Logger
 }
 
-func NewDesktopAssetServer(ctx context.Context, assets embed.FS, bindingsJSON string) (*DesktopAssetServer, error) {
+func NewDesktopAssetServer(ctx context.Context, assets fs.FS, bindingsJSON string) (*DesktopAssetServer, error) {
 	result := &DesktopAssetServer{}
 
 	_logger := ctx.Value("logger")
@@ -30,22 +25,18 @@ func NewDesktopAssetServer(ctx context.Context, assets embed.FS, bindingsJSON st
 		result.logger = _logger.(*logger.Logger)
 	}
 
-	_assetdir := ctx.Value("assetdir")
-	if _assetdir != nil {
-		result.assetdir = _assetdir.(string)
-		absdir, err := filepath.Abs(result.assetdir)
-		if err != nil {
-			return nil, err
-		}
-		result.LogDebug("Loading assets from: %s", absdir)
+	var err error
+	result.assets, err = prepareAssetsForServing(assets)
+	if err != nil {
+		return nil, err
 	}
 
 	var buffer bytes.Buffer
 	buffer.WriteString(`window.wailsbindings='` + bindingsJSON + `';` + "\n")
 	buffer.Write(runtime.RuntimeDesktopJS)
 	result.runtimeJS = buffer.Bytes()
-	err := result.init(assets)
-	return result, err
+
+	return result, nil
 }
 
 func (d *DesktopAssetServer) LogDebug(message string, args ...interface{}) {
@@ -54,63 +45,8 @@ func (d *DesktopAssetServer) LogDebug(message string, args ...interface{}) {
 	}
 }
 
-func (d *DesktopAssetServer) SetAssetDir(assetdir string) {
-	d.assetdir = assetdir
-}
-
-func PathToIndexHTML(assets embed.FS) (string, error) {
-	stat, err := fs.Stat(assets, "index.html")
-	if stat != nil {
-		return ".", nil
-	}
-	var indexFiles slicer.StringSlicer
-	err = fs.WalkDir(assets, ".", func(path string, d fs.DirEntry, err error) error {
-		if err != nil {
-			return err
-		}
-		if strings.HasSuffix(path, "index.html") {
-			indexFiles.Add(path)
-		}
-		return nil
-	})
-	if err != nil {
-		return "", err
-	}
-
-	if indexFiles.Length() > 1 {
-		return "", fmt.Errorf("multiple 'index.html' files found in assets")
-	}
-
-	path, _ := filepath.Split(indexFiles.AsSlice()[0])
-	return path, nil
-}
-
-func processAssets(assets embed.FS) (debme.Debme, error) {
-
-	result, err := debme.FS(assets, ".")
-	if err != nil {
-		return result, err
-	}
-	// Find index.html
-	path, err := PathToIndexHTML(assets)
-	if err != nil {
-		return debme.Debme{}, err
-	}
-	return debme.FS(assets, path)
-}
-
-func (a *DesktopAssetServer) init(assets embed.FS) error {
-
-	var err error
-	a.assets, err = processAssets(assets)
-	if err != nil {
-		return err
-	}
-	return nil
-}
-
 func (a *DesktopAssetServer) processIndexHTML() ([]byte, error) {
-	indexHTML, err := a.ReadFile("index.html")
+	indexHTML, err := fs.ReadFile(a.assets, "index.html")
 	if err != nil {
 		return nil, err
 	}
@@ -146,7 +82,9 @@ func (a *DesktopAssetServer) Load(filename string) ([]byte, string, error) {
 	case "/wails/ipc.js":
 		content = runtime.DesktopIPC
 	default:
-		content, err = a.ReadFile(filename)
+		filename = strings.TrimPrefix(filename, "/")
+		a.LogDebug("Loading file: %s", filename)
+		content, err = fs.ReadFile(a.assets, filename)
 	}
 	if err != nil {
 		return nil, "", err

v2/internal/frontend/assetserver/assetserver_desktop_dev.go

@@ -1,13 +0,0 @@
-//go:build dev
-
-package assetserver
-
-import (
-	"os"
-	"path/filepath"
-)
-
-func (a *DesktopAssetServer) ReadFile(filename string) ([]byte, error) {
-	a.LogDebug("Loading file from disk: %s", filename)
-	return os.ReadFile(filepath.Join(a.assetdir, filename))
-}

v2/internal/frontend/assetserver/assetserver_desktop_production.go

@@ -1,7 +0,0 @@
-//go:build production
-
-package assetserver
-
-func (a *DesktopAssetServer) ReadFile(filename string) ([]byte, error) {
-	return a.assets.ReadFile(filename)
-}

v2/internal/frontend/desktop/common/uri_translate.go

@@ -0,0 +1,20 @@
+package common
+
+import "net/url"
+
+func TranslateUriToFile(uri string, expectedScheme string, expectedHost string) (file string, match bool, err error) {
+	url, err := url.Parse(uri)
+	if err != nil {
+		return "", false, err
+	}
+
+	if url.Scheme != expectedScheme || url.Host != expectedHost {
+		return "", false, nil
+	}
+
+	filePath := url.Path
+	if filePath == "" {
+		filePath = "/"
+	}
+	return filePath, true, nil
+}

v2/internal/frontend/desktop/darwin/AppDelegate.h

@@ -14,6 +14,8 @@
 @interface AppDelegate : NSResponder <NSTouchBarProvider>
 
 @property bool alwaysOnTop;
+@property bool startHidden;
+@property bool startFullscreen;
 @property (retain) WailsWindow* mainWindow;
 
 @end

v2/internal/frontend/desktop/darwin/AppDelegate.m

@@ -16,14 +16,26 @@
 }
 - (void)applicationWillFinishLaunching:(NSNotification *)aNotification {
     [NSApp setActivationPolicy:NSApplicationActivationPolicyRegular];
-    [self.mainWindow makeKeyAndOrderFront:self];
     if (self.alwaysOnTop) {
         [self.mainWindow setLevel:NSStatusWindowLevel];
     }
+    if ( !self.startHidden ) {
+        [self.mainWindow makeKeyAndOrderFront:self];
+    }
 }
 
 - (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
     [NSApp activateIgnoringOtherApps:YES];
+    if ( self.startFullscreen ) {
+        NSWindowCollectionBehavior behaviour = [self.mainWindow collectionBehavior];
+        behaviour |= NSWindowCollectionBehaviorFullScreenPrimary;
+        [self.mainWindow setCollectionBehavior:behaviour];
+        [self.mainWindow toggleFullScreen:nil];
+    }
+}
+
+- (void)dealloc {
+    [super dealloc];
 }
 
 @synthesize touchBar;

v2/internal/frontend/desktop/darwin/Application.h

@@ -12,7 +12,12 @@
 #import <Cocoa/Cocoa.h>
 #import "WailsContext.h"
 
-WailsContext* Create(const char* title, int width, int height, int frameless, int resizable, int fullscreen, int fullSizeContent, int hideTitleBar, int titlebarAppearsTransparent, int hideTitle, int useToolbar, int hideToolbarSeparator, int webviewIsTransparent, int alwaysOnTop, int hideWindowOnClose, const char *appearance, int windowIsTranslucent, int debug);
+#define WindowStartsNormal 0
+#define WindowStartsMaximised 1
+#define WindowStartsMinimised 2
+#define WindowStartsFullscreen 3
+
+WailsContext* Create(const char* title, int width, int height, int frameless, int resizable, int fullscreen, int fullSizeContent, int hideTitleBar, int titlebarAppearsTransparent, int hideTitle, int useToolbar, int hideToolbarSeparator, int webviewIsTransparent, int alwaysOnTop, int hideWindowOnClose, const char *appearance, int windowIsTranslucent, int debug, int windowStartState, int startsHidden, int minWidth, int minHeight, int maxWidth, int maxHeight);
 void Run(void*);
 
 void SetTitle(void* ctx, const char *title);
@@ -36,7 +41,7 @@ void Quit(void*);
 const char* GetSize(void *ctx);
 const char* GetPos(void *ctx);
 
-void ProcessURLResponse(void *inctx, const char *url, const char *contentType, void* data, int datalength);
+void ProcessURLResponse(void *inctx, const char *url, int statusCode, const char *contentType, void* data, int datalength);
 
 /* Dialogs */
 

v2/internal/frontend/desktop/darwin/Application.m

@@ -12,7 +12,7 @@
 #import "WailsMenu.h"
 #import "WailsMenuItem.h"
 
-WailsContext* Create(const char* title, int width, int height, int frameless, int resizable, int fullscreen, int fullSizeContent, int hideTitleBar, int titlebarAppearsTransparent, int hideTitle, int useToolbar, int hideToolbarSeparator, int webviewIsTransparent, int alwaysOnTop, int hideWindowOnClose, const char *appearance, int windowIsTranslucent, int debug) {
+WailsContext* Create(const char* title, int width, int height, int frameless, int resizable, int fullscreen, int fullSizeContent, int hideTitleBar, int titlebarAppearsTransparent, int hideTitle, int useToolbar, int hideToolbarSeparator, int webviewIsTransparent, int alwaysOnTop, int hideWindowOnClose, const char *appearance, int windowIsTranslucent, int debug, int windowStartState, int startsHidden, int minWidth, int minHeight, int maxWidth, int maxHeight) {
     
     [NSApplication sharedApplication];
 
@@ -20,23 +20,46 @@ WailsContext* Create(const char* title, int width, int height, int frameless, in
 
     result.debug = debug;
     
-    [result CreateWindow:width :height :frameless :resizable :fullscreen :fullSizeContent :hideTitleBar :titlebarAppearsTransparent :hideTitle :useToolbar :hideToolbarSeparator :webviewIsTransparent :hideWindowOnClose :safeInit(appearance) :windowIsTranslucent];
+    if ( windowStartState == WindowStartsFullscreen ) {
+        fullscreen = 1;
+    }
+
+    [result CreateWindow:width :height :frameless :resizable :fullscreen :fullSizeContent :hideTitleBar :titlebarAppearsTransparent :hideTitle :useToolbar :hideToolbarSeparator :webviewIsTransparent :hideWindowOnClose :safeInit(appearance) :windowIsTranslucent :minWidth :minHeight :maxWidth :maxHeight];
     [result SetTitle:safeInit(title)];
     [result Center];
     
+    switch( windowStartState ) {
+        case WindowStartsMaximised:
+            [result.mainWindow zoom:nil];
+            break;
+        case WindowStartsMinimised:
+            //TODO: Can you start a mac app minimised?
+            break;
+    }
+
+    if ( startsHidden == 1 ) {
+        result.startHidden = true;
+    }
+    
+    if ( fullscreen == 1 ) {
+        result.startFullscreen = true;
+    }
+    
     result.alwaysOnTop = alwaysOnTop;
     result.hideOnClose = hideWindowOnClose;
         
     return result;
 }
 
-void ProcessURLResponse(void *inctx, const char *url, const char *contentType, void* data, int datalength) {
+void ProcessURLResponse(void *inctx, const char *url, int statusCode, const char *contentType, void* data, int datalength) {
     WailsContext *ctx = (__bridge WailsContext*) inctx;
     NSString *nsurl = safeInit(url);
     NSString *nsContentType = safeInit(contentType);
     NSData *nsdata = [NSData dataWithBytes:data length:datalength];
     
-    [ctx processURLResponse:nsurl :nsContentType :nsdata];
+    [ctx processURLResponse:nsurl :statusCode :nsContentType :nsdata];
+
+    [nsdata release];
 }
 
 void ExecJS(void* inctx, const char *script) {
@@ -306,6 +329,8 @@ void Run(void *inctx) {
     ctx.appdelegate = delegate;
     delegate.mainWindow = ctx.mainWindow;
     delegate.alwaysOnTop = ctx.alwaysOnTop;
+    delegate.startHidden = ctx.startHidden;
+    delegate.startFullscreen = ctx.startFullscreen;
 
     [ctx loadRequest:@"wails://wails/"];
     [app setMainMenu:ctx.applicationMenu];

v2/internal/frontend/desktop/darwin/WailsContext.h

@@ -11,11 +11,21 @@
 #import <Cocoa/Cocoa.h>
 #import <WebKit/WebKit.h>
 
+#if __has_include(<UniformTypeIdentifiers/UTType.h>)
+#import <UniformTypeIdentifiers/UTType.h>
+#endif
+
 #define ON_MAIN_THREAD(str) dispatch_async(dispatch_get_main_queue(), ^{ str; });
 #define unicode(input) [NSString stringWithFormat:@"%C", input]
 
 @interface WailsWindow : NSWindow
-- (BOOL)canBecomeKeyWindow;
+
+@property NSSize userMinSize;
+@property NSSize userMaxSize;
+
+- (BOOL) canBecomeKeyWindow;
+- (void) applyWindowConstraints;
+- (void) disableWindowConstraints;
 @end
 
 @interface WailsContext : NSObject <WKURLSchemeHandler,WKScriptMessageHandler,WKNavigationDelegate>
@@ -26,9 +36,8 @@
 
 @property bool hideOnClose;
 @property bool shuttingDown;
-
-@property NSSize maxSize;
-@property NSSize minSize;
+@property bool startHidden;
+@property bool startFullscreen;
 
 @property (retain) NSEvent* mouseEvent;
 
@@ -45,7 +54,7 @@
 @property (retain) NSString* aboutTitle;
 @property (retain) NSString* aboutDescription;
 
-- (void) CreateWindow:(int)width :(int)height :(bool)frameless :(bool)resizable :(bool)fullscreen :(bool)fullSizeContent :(bool)hideTitleBar :(bool)titlebarAppearsTransparent  :(bool)hideTitle :(bool)useToolbar :(bool)hideToolbarSeparator :(bool)webviewIsTransparent :(bool)hideWindowOnClose :(NSString *)appearance :(bool)windowIsTranslucent;
+- (void) CreateWindow:(int)width :(int)height :(bool)frameless :(bool)resizable :(bool)fullscreen :(bool)fullSizeContent :(bool)hideTitleBar :(bool)titlebarAppearsTransparent  :(bool)hideTitle :(bool)useToolbar :(bool)hideToolbarSeparator :(bool)webviewIsTransparent :(bool)hideWindowOnClose :(NSString *)appearance :(bool)windowIsTranslucent :(int)minWidth :(int)minHeight :(int)maxWidth :(int)maxHeight;
 - (void) SetSize:(int)width :(int)height;
 - (void) SetPosition:(int)x :(int) y;
 - (void) SetMinSize:(int)minWidth :(int)minHeight;
@@ -70,11 +79,12 @@
 - (void) SaveFileDialog :(NSString*)title :(NSString*)defaultFilename :(NSString*)defaultDirectory :(bool)canCreateDirectories :(bool)treatPackagesAsDirectories :(bool)showHiddenFiles :(NSString*)filters;
 
 - (void) loadRequest:(NSString*)url;
-- (void) processURLResponse:(NSString *)url :(NSString *)contentType :(NSData*)data;
+- (void) processURLResponse:(NSString *)url :(int)statusCode :(NSString *)contentType :(NSData*)data;
 - (void) ExecJS:(NSString*)script;
 - (NSScreen*) getCurrentScreen;
 
 - (void) SetAbout :(NSString*)title :(NSString*)description :(void*)imagedata :(int)datalen;
+- (void) dealloc;
 
 @end
 

v2/internal/frontend/desktop/darwin/WailsContext.m

@@ -21,6 +21,16 @@
     return YES;
 }
 
+- (void) applyWindowConstraints {
+    [self setMinSize:self.userMinSize];
+    [self setMaxSize:self.userMaxSize];
+}
+
+- (void) disableWindowConstraints {
+    [self setMinSize:NSMakeSize(0, 0)];
+    [self setMaxSize:NSMakeSize(FLT_MAX, FLT_MAX)];
+}
+
 @end
 
 @implementation WailsContext
@@ -33,7 +43,7 @@
     frame.origin.y += frame.size.height - height;
     frame.size.width = width;
     frame.size.height = height;
-    ON_MAIN_THREAD([self.mainWindow setFrame:frame display:TRUE animate:FALSE];);
+    [self.mainWindow setFrame:frame display:TRUE animate:FALSE];
 }
 
 - (void) SetPosition:(int)x :(int)y {
@@ -45,8 +55,8 @@
     NSRect screenFrame = [screen frame];
     windowFrame.origin.x = screenFrame.origin.x + (float)x;
     windowFrame.origin.y = (screenFrame.origin.y + screenFrame.size.height) - windowFrame.size.height - (float)y;
-
-    ON_MAIN_THREAD([self.mainWindow setFrame:windowFrame display:TRUE animate:FALSE]; );
+    
+    [self.mainWindow setFrame:windowFrame display:TRUE animate:FALSE];
 }
 
 - (void) SetMinSize:(int)minWidth :(int)minHeight {
@@ -54,13 +64,9 @@
     if (self.shuttingDown) return;
     
     NSSize size = { minWidth, minHeight };
-    
-    self.minSize = size;
-
-    ON_MAIN_THREAD(
-        [self.mainWindow setMinSize:size];
-        [self adjustWindowSize];
-    );
+    self.mainWindow.userMinSize = size;
+    [self.mainWindow setMinSize:size];
+    [self adjustWindowSize];
 }
 
 
@@ -73,12 +79,9 @@
     size.width = maxWidth > 0 ? maxWidth : FLT_MAX;
     size.height = maxHeight > 0 ? maxHeight : FLT_MAX;
     
-    self.maxSize = size;
-
-    ON_MAIN_THREAD(
-        [self.mainWindow setMaxSize:size];
-        [self adjustWindowSize];
-    );
+    self.mainWindow.userMaxSize = size;
+    [self.mainWindow setMaxSize:size];
+    [self adjustWindowSize];
 }
 
 
@@ -88,23 +91,23 @@
     
     NSRect currentFrame = [self.mainWindow frame];
     
-    if ( currentFrame.size.width > self.maxSize.width ) currentFrame.size.width = self.maxSize.width;
-    if ( currentFrame.size.width < self.minSize.width ) currentFrame.size.width = self.minSize.width;
-    if ( currentFrame.size.height > self.maxSize.height ) currentFrame.size.height = self.maxSize.height;
-    if ( currentFrame.size.height < self.minSize.height ) currentFrame.size.height = self.minSize.height;
+    if ( currentFrame.size.width > self.mainWindow.userMaxSize.width ) currentFrame.size.width = self.mainWindow.userMaxSize.width;
+    if ( currentFrame.size.width < self.mainWindow.userMinSize.width ) currentFrame.size.width = self.mainWindow.userMinSize.width;
+    if ( currentFrame.size.height > self.mainWindow.userMaxSize.height ) currentFrame.size.height = self.mainWindow.userMaxSize.height;
+    if ( currentFrame.size.height < self.mainWindow.userMinSize.height ) currentFrame.size.height = self.mainWindow.userMinSize.height;
 
     [self.mainWindow setFrame:currentFrame display:YES animate:FALSE];
     
 }
 
 - (void) dealloc {
-    [super dealloc];
     [self.appdelegate release];
     [self.mainWindow release];
     [self.mouseEvent release];
     [self.userContentController release];
     [self.urlRequests release];
     [self.applicationMenu release];
+    [super dealloc];
 }
 
 - (NSScreen*) getCurrentScreen {
@@ -116,11 +119,11 @@
 }
 
 - (void) SetTitle:(NSString*)title {
-    ON_MAIN_THREAD([self.mainWindow setTitle:title];)
+    [self.mainWindow setTitle:title];
 }
 
 - (void) Center {
-    ON_MAIN_THREAD( [self.mainWindow center]; );
+     [self.mainWindow center];
 }
 
 - (BOOL) isFullscreen {
@@ -131,37 +134,29 @@
     return NO;
 }
 
-- (void) CreateWindow:(int)width :(int)height :(bool)frameless :(bool)resizable :(bool)fullscreen :(bool)fullSizeContent :(bool)hideTitleBar :(bool)titlebarAppearsTransparent :(bool)hideTitle :(bool)useToolbar :(bool)hideToolbarSeparator :(bool)webviewIsTransparent :(bool)hideWindowOnClose :(NSString*)appearance :(bool)windowIsTranslucent {
+- (void) CreateWindow:(int)width :(int)height :(bool)frameless :(bool)resizable :(bool)fullscreen :(bool)fullSizeContent :(bool)hideTitleBar :(bool)titlebarAppearsTransparent :(bool)hideTitle :(bool)useToolbar :(bool)hideToolbarSeparator :(bool)webviewIsTransparent :(bool)hideWindowOnClose :(NSString*)appearance :(bool)windowIsTranslucent :(int)minWidth :(int)minHeight :(int)maxWidth :(int)maxHeight {
     
     self.urlRequests = [NSMutableDictionary new];
     
-    NSWindowStyleMask styleMask = NSWindowStyleMaskClosable | NSWindowStyleMaskMiniaturizable;
+    NSWindowStyleMask styleMask = 0;
     
-    if (frameless) {
-        styleMask = NSWindowStyleMaskBorderless;
-        titlebarAppearsTransparent = true;
-        hideTitle = true;
-    } else {
+    if( !frameless ) {
         if (!hideTitleBar) {
             styleMask |= NSWindowStyleMaskTitled;
         }
-        
-        if (fullscreen) {
-            styleMask |= NSWindowStyleMaskFullScreen;
-        }
-        
-        if( fullSizeContent || frameless || titlebarAppearsTransparent ) {
-            styleMask |= NSWindowStyleMaskFullSizeContentView;
-        }
+        styleMask |= NSWindowStyleMaskClosable | NSWindowStyleMaskMiniaturizable;
     }
-    
+
+    if( fullSizeContent || frameless || titlebarAppearsTransparent ) {
+        styleMask |= NSWindowStyleMaskFullSizeContentView;
+    }
+
     if (resizable) {
         styleMask |= NSWindowStyleMaskResizable;
     }
     
-    self.mainWindow = [[[WailsWindow alloc] initWithContentRect:NSMakeRect(0, 0, width, height)
-                                                      styleMask:styleMask backing:NSBackingStoreBuffered defer:NO]
-                       autorelease];
+    self.mainWindow = [[WailsWindow alloc] initWithContentRect:NSMakeRect(0, 0, width, height)
+                                                      styleMask:styleMask backing:NSBackingStoreBuffered defer:NO];
         
     if (!frameless && useToolbar) {
         id toolbar = [[NSToolbar alloc] initWithIdentifier:@"wails.toolbar"];
@@ -192,15 +187,25 @@
         [self.mainWindow setAppearance:nsAppearance];
     }
     
-    // Set up min/max
-    NSSize maxSize = { FLT_MAX, FLT_MAX };
-    self.maxSize = maxSize;
-    NSSize minSize = { 0, 0 };
-    self.minSize = minSize;
-    [self adjustWindowSize];
+
+    NSSize minSize = { minWidth, minHeight };
+    NSSize maxSize = { maxWidth, maxHeight };
+    if (maxSize.width == 0) {
+        maxSize.width = FLT_MAX;
+    }
+    if (maxSize.height == 0) {
+        maxSize.height = FLT_MAX;
+    }
+    self.mainWindow.userMaxSize = maxSize;
+    self.mainWindow.userMinSize = minSize;
+    
+    if( !fullscreen ) {
+        [self.mainWindow applyWindowConstraints];
+    }
     
     WindowDelegate *windowDelegate = [WindowDelegate new];
     windowDelegate.hideOnClose = hideWindowOnClose;
+    windowDelegate.ctx = self;
     [self.mainWindow setDelegate:windowDelegate];
     
     // Webview stuff here!
@@ -278,7 +283,7 @@
 }
 
 - (NSMenu*) newMenu :(NSString*)title {
-    WailsMenu *result = [[[WailsMenu new] initWithTitle:title] autorelease];
+    WailsMenu *result = [[WailsMenu new] initWithTitle:title];
     [result setAutoenablesItems:NO];
     return result;
 }
@@ -294,14 +299,14 @@
 }
 
 - (void) SetRGBA:(int)r :(int)g :(int)b :(int)a {
-    float red = r/255;
-    float green = g/255;
-    float blue = b/255;
-    float alpha = a/255;
+    float red = r/255.0;
+    float green = g/255.0;
+    float blue = b/255.0;
+    float alpha = a/255.0;
     
     id colour = [NSColor colorWithCalibratedRed:red green:green blue:blue alpha:alpha ];
     
-    ON_MAIN_THREAD([self.mainWindow setBackgroundColor:colour];);
+    [self.mainWindow setBackgroundColor:colour];
 }
 
 - (void) HideMouse {
@@ -325,66 +330,66 @@
 // Fullscreen sets the main window to be fullscreen
 - (void) Fullscreen {
     if( ! [self isFullScreen] ) {
-        ON_MAIN_THREAD([self.mainWindow toggleFullScreen:nil];)
+        [self.mainWindow disableWindowConstraints];
+        [self.mainWindow toggleFullScreen:nil];
     }
 }
 
 // UnFullscreen resets the main window after a fullscreen
 - (void) UnFullscreen {
     if( [self isFullScreen] ) {
-        ON_MAIN_THREAD([self.mainWindow toggleFullScreen:nil];)
+        [self.mainWindow applyWindowConstraints];
+        [self.mainWindow toggleFullScreen:nil];
     }
 }
 
 - (void) Minimise {
-    ON_MAIN_THREAD([self.mainWindow miniaturize:nil];)
+    [self.mainWindow miniaturize:nil];
 }
 
 - (void) UnMinimise {
-    ON_MAIN_THREAD([self.mainWindow deminiaturize:nil];)
+    [self.mainWindow deminiaturize:nil];
 }
 
 - (void) Hide {
-    ON_MAIN_THREAD([self.mainWindow orderOut:nil];)
+    [self.mainWindow orderOut:nil];
 }
 
 - (void) Show {
-    ON_MAIN_THREAD(
-        [self.mainWindow makeKeyAndOrderFront:nil];
-        [NSApp activateIgnoringOtherApps:YES];
-    )
+    [self.mainWindow makeKeyAndOrderFront:nil];
+    [NSApp activateIgnoringOtherApps:YES];
 }
 
 - (void) Maximise {
     if (![self.mainWindow isZoomed]) {
-        ON_MAIN_THREAD([self.mainWindow zoom:nil];)
+        [self.mainWindow zoom:nil];
     }
 }
 
 - (void) UnMaximise {
     if ([self.mainWindow isZoomed]) {
-        ON_MAIN_THREAD([self.mainWindow zoom:nil];)
+        [self.mainWindow zoom:nil];
     }
 }
 
 - (void) ExecJS:(NSString*)script {
-    ON_MAIN_THREAD(
-                   [self.webview evaluateJavaScript:script completionHandler:nil];
-    )
+   [self.webview evaluateJavaScript:script completionHandler:nil];
 }
 
-- (void) processURLResponse:(NSString *)url :(NSString *)contentType :(NSData *)data {
+- (void) processURLResponse:(NSString *)url :(int)statusCode :(NSString *)contentType :(NSData *)data {
     id<WKURLSchemeTask> urlSchemeTask = self.urlRequests[url];
     NSURL *nsurl = [NSURL URLWithString:url];
-    
-    NSHTTPURLResponse *response = [NSHTTPURLResponse new];
     NSMutableDictionary *headerFields = [NSMutableDictionary new];
-    headerFields[@"content-type"] = contentType;
-    [response initWithURL:nsurl statusCode:200 HTTPVersion:@"HTTP/1.1" headerFields:headerFields];
+    if ( ![contentType isEqualToString:@""] ) {
+        headerFields[@"content-type"] = contentType;
+    }
+    NSHTTPURLResponse *response = [[NSHTTPURLResponse new] initWithURL:nsurl statusCode:statusCode HTTPVersion:@"HTTP/1.1" headerFields:headerFields];
     [urlSchemeTask didReceiveResponse:response];
     [urlSchemeTask didReceiveData:data];
     [urlSchemeTask didFinish];
     [self.urlRequests removeObjectForKey:url];
+    [response release];
+    [headerFields release];
 }
 
 - (void)webView:(nonnull WKWebView *)webView startURLSchemeTask:(nonnull id<WKURLSchemeTask>)urlSchemeTask {
@@ -406,15 +411,13 @@
     
     // Check for drag
     if ( [m isEqualToString:@"drag"] ) {
-        if( ! [self isFullScreen] ) {
-            if( self.mouseEvent != nil ) {
-                [self HideMouse];
-                ON_MAIN_THREAD(
-                               [self.mainWindow performWindowDragWithEvent:self.mouseEvent];
-                               );
-            }
+        if( [self isFullScreen] ) {
             return;
         }
+        if( self.mouseEvent != nil ) {
+           [self.mainWindow performWindowDragWithEvent:self.mouseEvent];
+        }
+        return;
     }
     
     const char *_m = [m UTF8String];
@@ -455,28 +458,26 @@
         NSData *imageData = [NSData dataWithBytes:iconData length:iconDataLength];
         icon = [[NSImage alloc] initWithData:imageData];
     }
-    ON_MAIN_THREAD(
-                   if( icon != nil) {
-                       [alert setIcon:icon];
-                   }
-        [alert.window setLevel:NSFloatingWindowLevel];
+    if( icon != nil) {
+       [alert setIcon:icon];
+    }
+    [alert.window setLevel:NSFloatingWindowLevel];
 
-        long response = [alert runModal];
-        int result;
-        
-        if( response == NSAlertFirstButtonReturn ) {
-            result = 0;
-        }
-        else if( response == NSAlertSecondButtonReturn ) {
-            result = 1;
-        }
-        else if( response == NSAlertThirdButtonReturn ) {
-            result = 2;
-        } else {
-            result = 3;
-        }
-        processMessageDialogResponse(result);
-    )
+    long response = [alert runModal];
+    int result;
+
+    if( response == NSAlertFirstButtonReturn ) {
+        result = 0;
+    }
+    else if( response == NSAlertSecondButtonReturn ) {
+        result = 1;
+    }
+    else if( response == NSAlertThirdButtonReturn ) {
+        result = 2;
+    } else {
+        result = 3;
+    }
+    processMessageDialogResponse(result);
 }
 
 -(void) OpenFileDialog :(NSString*)title :(NSString*)defaultFilename :(NSString*)defaultDirectory :(bool)allowDirectories :(bool)allowFiles :(bool)canCreateDirectories :(bool)treatPackagesAsDirectories :(bool)resolveAliases :(bool)showHiddenFiles :(bool)allowMultipleSelection :(NSString*)filters {
@@ -492,11 +493,20 @@
 
     // Filters - semicolon delimited list of file extensions
     if( allowFiles ) {
-        if( filters != nil ) {
+        if( filters != nil && [filters length] > 0) {
             filters = [filters stringByReplacingOccurrencesOfString:@"*." withString:@""];
             filters = [filters stringByReplacingOccurrencesOfString:@" " withString:@""];
             NSArray *filterList = [filters componentsSeparatedByString:@";"];
-            [dialog setAllowedFileTypes:filterList];
+            if (@available(macOS 10.16, *)) {
+                NSMutableArray *contentTypes = [[NSMutableArray new] autorelease];
+                for (NSString *filter in filterList) {
+                    UTType *t = [UTType typeWithFilenameExtension:filter];
+                    [contentTypes addObject:t];
+                }
+                [dialog setAllowedContentTypes:contentTypes];
+            } else {
+                [dialog setAllowedFileTypes:filterList];
+            }
         } else {
             [dialog setAllowsOtherFileTypes:true];
         }
@@ -533,10 +543,10 @@
         NSData *jsonData = [NSJSONSerialization dataWithJSONObject:arr options:0 error:nil];
         NSString *nsjson = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
         processOpenFileDialogResponse([nsjson UTF8String]);
+        [nsjson release];
+        [arr release];
     }];
     
-    ON_MAIN_THREAD([dialog runModal];)
-    
 }
 
 
@@ -579,11 +589,13 @@
     // Setup callback handler
     [dialog beginSheetModalForWindow:self.mainWindow completionHandler:^(NSModalResponse returnCode) {
         NSURL *url = [dialog URL];
-        processSaveFileDialogResponse([url.path UTF8String]);
+        if ( url != nil ) {
+            processSaveFileDialogResponse([url.path UTF8String]);
+            return;
+        }
+        processSaveFileDialogResponse("");
     }];
-    
-    ON_MAIN_THREAD([dialog runModal];)
-    
+        
 }
 
 - (void) SetAbout :(NSString*)title :(NSString*)description :(void*)imagedata :(int)datalen {
@@ -611,8 +623,7 @@
         [alert setIcon:self.aboutImage];
     }
 
-    ON_MAIN_THREAD([alert runModal];)
-    
+    [alert runModal];
 }
 
 @end

v2/internal/frontend/desktop/darwin/WailsMenu.m

@@ -19,7 +19,7 @@
 }
 
 - (NSMenuItem*) newMenuItemWithContext :(WailsContext*)ctx :(NSString*)title :(SEL)selector :(NSString*)key :(NSEventModifierFlags)flags {
-    NSMenuItem *result = [[NSMenuItem new] autorelease];
+    NSMenuItem *result = [NSMenuItem new];
     if ( title != nil ) {
         [result setTitle:title];
     }
@@ -45,7 +45,7 @@
         [super initWithTitle:title];
     }
     [self setAutoenablesItems:NO];
-    return self;
+    return [self init];
 }
 
 - (void) appendSubmenu :(WailsMenu*)child {
@@ -64,7 +64,7 @@
             if( appName == nil ) {
                 appName = [[NSProcessInfo processInfo] processName];
             }
-            WailsMenu *appMenu = [[WailsMenu new] initWithNSTitle:appName];
+            WailsMenu *appMenu = [[[WailsMenu new] initWithNSTitle:appName] autorelease];
             id quitTitle = [@"Quit " stringByAppendingString:appName];
             NSMenuItem* quitMenuItem = [self newMenuItem:quitTitle :@selector(Quit) :@"q" :NSEventModifierFlagCommand];
             quitMenuItem.target = ctx;
@@ -77,7 +77,7 @@
         }
         case EditMenu:
         {
-            WailsMenu *editMenu = [[WailsMenu new] initWithNSTitle:@"Edit"];
+            WailsMenu *editMenu = [[[WailsMenu new] initWithNSTitle:@"Edit"] autorelease];
             [editMenu addItem:[self newMenuItem:@"Undo" :@selector(undoActionName) :@"z" :NSEventModifierFlagCommand]];
             [editMenu addItem:[self newMenuItem:@"Redo" :@selector(redoActionName) :@"z" :(NSEventModifierFlagShift | NSEventModifierFlagCommand)]];
             [editMenu addItem:[NSMenuItem separatorItem]];
@@ -91,7 +91,7 @@
 //            NSMenuItem *speechMenuItem = [[NSMenuItem new] autorelease];
 //            [speechMenuItem setTitle:@"Speech"];
 //            [editMenu addItem:speechMenuItem];
-            WailsMenu *speechMenu =  [[WailsMenu new] initWithNSTitle:@"Speech"];
+            WailsMenu *speechMenu =  [[[WailsMenu new] initWithNSTitle:@"Speech"] autorelease];
             [speechMenu addItem:[self newMenuItem:@"Start Speaking" :@selector(startSpeaking:) :@""]];
             [speechMenu addItem:[self newMenuItem:@"Stop Speaking" :@selector(stopSpeaking:) :@""]];
             [editMenu appendSubmenu:speechMenu];

v2/internal/frontend/desktop/darwin/WindowDelegate.h

@@ -8,10 +8,17 @@
 #ifndef WindowDelegate_h
 #define WindowDelegate_h
 
+#import "WailsContext.h"
+
 @interface WindowDelegate : NSObject <NSWindowDelegate>
 
 @property bool hideOnClose;
 
+@property (assign) WailsContext* ctx;
+
+- (void)windowDidExitFullScreen:(NSNotification *)notification;
+
+
 @end
 
 

v2/internal/frontend/desktop/darwin/WindowDelegate.m

@@ -12,13 +12,26 @@
 #import "WailsContext.h"
 
 @implementation WindowDelegate
-
 - (BOOL)windowShouldClose:(WailsWindow *)sender {
-    [sender orderOut:nil];
-    if( self.hideOnClose == false ) {
-        processMessage("Q");
+    if( self.hideOnClose ) {
+        [NSApp hide:nil];
+        return false;
     }
-    return !self.hideOnClose;
+    processMessage("Q");
+    return false;
 }
 
+- (void)windowDidExitFullScreen:(NSNotification *)notification {
+    [self.ctx.mainWindow applyWindowConstraints];
+}
+
+- (void)windowWillEnterFullScreen:(NSNotification *)notification {
+    [self.ctx.mainWindow disableWindowConstraints];
+}
+
+- (NSApplicationPresentationOptions)window:(WailsWindow *)window willUseFullScreenPresentationOptions:(NSApplicationPresentationOptions)proposedOptions {
+    return NSApplicationPresentationAutoHideToolbar | NSApplicationPresentationAutoHideMenuBar | NSApplicationPresentationFullScreen;
+}
+
+
 @end

v2/internal/frontend/desktop/darwin/dialog.go

@@ -84,7 +84,7 @@ func (f *Frontend) openDialog(options *frontend.OpenDialogOptions, multiple bool
 
 // OpenFileDialog prompts the user to select a file
 func (f *Frontend) OpenFileDialog(options frontend.OpenDialogOptions) (string, error) {
-	results, err := f.openDialog(&options, false, options.AllowFiles, options.AllowDirectories)
+	results, err := f.openDialog(&options, false, true, false)
 	if err != nil {
 		return "", err
 	}
@@ -97,7 +97,7 @@ func (f *Frontend) OpenFileDialog(options frontend.OpenDialogOptions) (string, e
 
 // OpenMultipleFilesDialog prompts the user to select a file
 func (f *Frontend) OpenMultipleFilesDialog(options frontend.OpenDialogOptions) ([]string, error) {
-	return f.openDialog(&options, true, options.AllowFiles, options.AllowDirectories)
+	return f.openDialog(&options, true, true, false)
 }
 
 // SaveFileDialog prompts the user to select a file

v2/internal/frontend/desktop/darwin/frontend.go

@@ -5,7 +5,7 @@ package darwin
 
 /*
 #cgo CFLAGS: -x objective-c
-#cgo LDFLAGS: -framework Foundation -framework Cocoa -framework WebKit
+#cgo LDFLAGS: -framework Foundation -framework Cocoa -framework WebKit -framework UniformTypeIdentifiers
 #import <Foundation/Foundation.h>
 #import "Application.h"
 #import "WailsContext.h"
@@ -16,15 +16,17 @@ import "C"
 import (
 	"context"
 	"encoding/json"
+	"fmt"
 	"html/template"
 	"log"
+	"os"
 	"strconv"
-	"strings"
 	"unsafe"
 
 	"github.com/wailsapp/wails/v2/internal/binding"
 	"github.com/wailsapp/wails/v2/internal/frontend"
 	"github.com/wailsapp/wails/v2/internal/frontend/assetserver"
+	"github.com/wailsapp/wails/v2/internal/frontend/desktop/common"
 	"github.com/wailsapp/wails/v2/internal/logger"
 	"github.com/wailsapp/wails/v2/pkg/options"
 )
@@ -51,11 +53,10 @@ type Frontend struct {
 	assets *assetserver.DesktopAssetServer
 
 	// main window handle
-	mainWindow                               *Window
-	minWidth, minHeight, maxWidth, maxHeight int
-	bindings                                 *binding.Bindings
-	dispatcher                               frontend.Dispatcher
-	servingFromDisk                          bool
+	mainWindow      *Window
+	bindings        *binding.Bindings
+	dispatcher      frontend.Dispatcher
+	servingFromDisk bool
 }
 
 func NewFrontend(ctx context.Context, appoptions *options.App, myLogger *logger.Logger, appBindings *binding.Bindings, dispatcher frontend.Dispatcher) *Frontend {
@@ -163,15 +164,11 @@ func (f *Frontend) WindowSetTitle(title string) {
 }
 
 func (f *Frontend) WindowFullscreen() {
-	f.mainWindow.SetMaxSize(0, 0)
-	f.mainWindow.SetMinSize(0, 0)
 	f.mainWindow.Fullscreen()
 }
 
 func (f *Frontend) WindowUnFullscreen() {
 	f.mainWindow.UnFullscreen()
-	f.mainWindow.SetMaxSize(f.maxWidth, f.maxHeight)
-	f.mainWindow.SetMinSize(f.minWidth, f.minHeight)
 }
 
 func (f *Frontend) WindowShow() {
@@ -195,13 +192,9 @@ func (f *Frontend) WindowUnminimise() {
 }
 
 func (f *Frontend) WindowSetMinSize(width int, height int) {
-	f.minWidth = width
-	f.minHeight = height
 	f.mainWindow.SetMinSize(width, height)
 }
 func (f *Frontend) WindowSetMaxSize(width int, height int) {
-	f.maxWidth = width
-	f.maxHeight = height
 	f.mainWindow.SetMaxSize(width, height)
 }
 
@@ -213,10 +206,10 @@ func (f *Frontend) WindowSetRGBA(col *options.RGBA) {
 }
 
 func (f *Frontend) Quit() {
-	f.mainWindow.Quit()
-	if f.frontendOptions.OnShutdown != nil {
-		f.frontendOptions.OnShutdown(f.ctx)
+	if f.frontendOptions.OnBeforeClose != nil && f.frontendOptions.OnBeforeClose(f.ctx) {
+		return
 	}
+	f.mainWindow.Quit()
 }
 
 type EventNotify struct {
@@ -246,23 +239,31 @@ func (f *Frontend) processMessage(message string) {
 		return
 	}
 
-	result, err := f.dispatcher.ProcessMessage(message, f)
-	if err != nil {
-		f.logger.Error(err.Error())
-		f.Callback(result)
-		return
-	}
-	if result == "" {
-		return
-	}
+	//if strings.HasPrefix(message, "systemevent:") {
+	//	f.processSystemEvent(message)
+	//	return
+	//}
+
+	go func() {
+		result, err := f.dispatcher.ProcessMessage(message, f)
+		if err != nil {
+			f.logger.Error(err.Error())
+			f.Callback(result)
+			return
+		}
+		if result == "" {
+			return
+		}
+
+		switch result[0] {
+		case 'c':
+			// Callback from a method call
+			f.Callback(result[1:])
+		default:
+			f.logger.Info("Unknown message returned from dispatcher: %+v", result)
+		}
+	}()
 
-	switch result[0] {
-	case 'c':
-		// Callback from a method call
-		f.Callback(result[1:])
-	default:
-		f.logger.Info("Unknown message returned from dispatcher: %+v", result)
-	}
 }
 
 func (f *Frontend) Callback(message string) {
@@ -274,17 +275,34 @@ func (f *Frontend) ExecJS(js string) {
 }
 
 func (f *Frontend) processRequest(r *request) {
-	url := C.GoString(r.url)
-	url = strings.TrimPrefix(url, "wails://wails")
-	if !strings.HasPrefix(url, "/") {
-		return
+	uri := C.GoString(r.url)
+
+	var _contents []byte
+	var _mimetype string
+
+	// Translate URI to file
+	file, match, err := common.TranslateUriToFile(uri, "wails", "wails")
+	if err == nil {
+		if !match {
+			// This should never happen on darwin, because we get only called for wails://
+			panic("Unexpected host for request on wails:// scheme")
+		}
+
+		// Load file from asset store
+		_contents, _mimetype, err = f.assets.Load(file)
 	}
-	_contents, _mimetype, err := f.assets.Load(url)
+
+	statusCode := 200
 	if err != nil {
-		f.logger.Error(err.Error())
-		//TODO: Handle errors
-		return
+		if os.IsNotExist(err) {
+			statusCode = 404
+		} else {
+			err = fmt.Errorf("Error processing request %s: %w", uri, err)
+			f.logger.Error(err.Error())
+			statusCode = 500
+		}
 	}
+
 	var data unsafe.Pointer
 	if _contents != nil {
 		data = unsafe.Pointer(&_contents[0])
@@ -292,9 +310,25 @@ func (f *Frontend) processRequest(r *request) {
 	mimetype := C.CString(_mimetype)
 	defer C.free(unsafe.Pointer(mimetype))
 
-	C.ProcessURLResponse(r.ctx, r.url, mimetype, data, C.int(len(_contents)))
+	C.ProcessURLResponse(r.ctx, r.url, C.int(statusCode), mimetype, data, C.int(len(_contents)))
 }
 
+//func (f *Frontend) processSystemEvent(message string) {
+//	sl := strings.Split(message, ":")
+//	if len(sl) != 2 {
+//		f.logger.Error("Invalid system message: %s", message)
+//		return
+//	}
+//	switch sl[1] {
+//	case "fullscreen":
+//		f.mainWindow.DisableSizeConstraints()
+//	case "unfullscreen":
+//		f.mainWindow.EnableSizeConstraints()
+//	default:
+//		f.logger.Error("Unknown system message: %s", message)
+//	}
+//}
+
 //export processMessage
 func processMessage(message *C.char) {
 	goMessage := C.GoString(message)

v2/internal/frontend/desktop/darwin/main.m

@@ -200,9 +200,9 @@ unsigned int _Users_username_Pictures_SaltBae_png_len = 1863;
 
 int main(int argc, const char * argv[]) {
     // insert code here...
-    int frameless = 1;
-    int resizable = 0;
-    int fullscreen = 0;
+    int frameless = 0;
+    int resizable = 1;
+    int fullscreen = 1;
     int fullSizeContent = 1;
     int hideTitleBar = 0;
     int titlebarAppearsTransparent = 0;
@@ -215,7 +215,10 @@ int main(int argc, const char * argv[]) {
     const char* appearance = "NSAppearanceNameDarkAqua";
     int windowIsTranslucent = 1;
     int debug = 1;
-    WailsContext *result = Create("OI OI!",400,400, frameless,  resizable, fullscreen, fullSizeContent, hideTitleBar, titlebarAppearsTransparent, hideTitle, useToolbar, hideToolbarSeparator, webviewIsTransparent, alwaysOnTop, hideWindowOnClose, appearance, windowIsTranslucent, debug);
+    int windowStartState = 0;
+    int startsHidden = 0;
+    WailsContext *result = Create("OI OI!",400,400, frameless,  resizable, fullscreen, fullSizeContent, hideTitleBar, titlebarAppearsTransparent, hideTitle, useToolbar, hideToolbarSeparator, webviewIsTransparent, alwaysOnTop, hideWindowOnClose, appearance, windowIsTranslucent, debug, windowStartState,
+                                  startsHidden, 400, 400, 600, 600);
     SetRGBA(result, 255, 0, 0, 255);
     void *m = NewMenu("");
     SetAbout(result, "Fake title", "I am a description", _Users_username_Pictures_SaltBae_png, _Users_username_Pictures_SaltBae_png_len);
@@ -228,7 +231,7 @@ int main(int argc, const char * argv[]) {
     AppendSubmenu(m, submenu);
     UpdateMenuItem(menuITem, 1);
     SetAsApplicationMenu(result, m);
-    SetPosition(result, 100, 100);
+//    SetPosition(result, 100, 100);
 
     
     

v2/internal/frontend/desktop/darwin/window.go

@@ -1,3 +1,6 @@
+//go:build darwin
+// +build darwin
+
 package darwin
 
 /*
@@ -47,6 +50,7 @@ func NewWindow(frontendOptions *options.App, debugMode bool) *Window {
 	fullscreen := bool2Cint(frontendOptions.Fullscreen)
 	alwaysOnTop := bool2Cint(frontendOptions.AlwaysOnTop)
 	hideWindowOnClose := bool2Cint(frontendOptions.HideWindowOnClose)
+	startsHidden := bool2Cint(frontendOptions.StartHidden)
 	debug := bool2Cint(debugMode)
 
 	var fullSizeContent, hideTitleBar, hideTitle, useToolbar, webviewIsTransparent C.int
@@ -55,6 +59,11 @@ func NewWindow(frontendOptions *options.App, debugMode bool) *Window {
 
 	width := C.int(frontendOptions.Width)
 	height := C.int(frontendOptions.Height)
+	minWidth := C.int(frontendOptions.MinWidth)
+	minHeight := C.int(frontendOptions.MinHeight)
+	maxWidth := C.int(frontendOptions.MaxWidth)
+	maxHeight := C.int(frontendOptions.MaxHeight)
+	windowStartState := C.int(int(frontendOptions.WindowStartState))
 
 	title = c.String(frontendOptions.Title)
 
@@ -75,7 +84,8 @@ func NewWindow(frontendOptions *options.App, debugMode bool) *Window {
 	}
 	var context *C.WailsContext = C.Create(title, width, height, frameless, resizable, fullscreen, fullSizeContent,
 		hideTitleBar, titlebarAppearsTransparent, hideTitle, useToolbar, hideToolbarSeparator, webviewIsTransparent,
-		alwaysOnTop, hideWindowOnClose, appearance, windowIsTranslucent, debug)
+		alwaysOnTop, hideWindowOnClose, appearance, windowIsTranslucent, debug, windowStartState, startsHidden,
+		minWidth, minHeight, maxWidth, maxHeight)
 
 	// Create menu
 	result := &Window{
@@ -102,9 +112,6 @@ func NewWindow(frontendOptions *options.App, debugMode bool) *Window {
 		result.SetApplicationMenu(frontendOptions.Menu)
 	}
 
-	result.SetMinSize(frontendOptions.MinWidth, frontendOptions.MinHeight)
-	result.SetMaxSize(frontendOptions.MaxWidth, frontendOptions.MaxHeight)
-
 	return result
 }
 
@@ -161,16 +168,10 @@ func (w *Window) UnMinimise() {
 }
 
 func (w *Window) SetMinSize(width int, height int) {
-	if width == 0 && height == 0 {
-		return
-	}
 	C.SetMinSize(w.context, C.int(width), C.int(height))
 }
 
 func (w *Window) SetMaxSize(width int, height int) {
-	if width == 0 && height == 0 {
-		return
-	}
 	C.SetMaxSize(w.context, C.int(width), C.int(height))
 }
 

v2/internal/frontend/desktop/desktop_linux.go

@@ -0,0 +1,17 @@
+//go:build linux
+// +build linux
+
+package desktop
+
+import (
+	"context"
+	"github.com/wailsapp/wails/v2/internal/binding"
+	"github.com/wailsapp/wails/v2/internal/frontend"
+	"github.com/wailsapp/wails/v2/internal/frontend/desktop/linux"
+	"github.com/wailsapp/wails/v2/internal/logger"
+	"github.com/wailsapp/wails/v2/pkg/options"
+)
+
+func NewFrontend(ctx context.Context, appoptions *options.App, logger *logger.Logger, appBindings *binding.Bindings, dispatcher frontend.Dispatcher) frontend.Frontend {
+	return linux.NewFrontend(ctx, appoptions, logger, appBindings, dispatcher)
+}

v2/internal/frontend/desktop/linux/browser.go

@@ -0,0 +1,12 @@
+//go:build linux
+// +build linux
+
+package linux
+
+import "github.com/pkg/browser"
+
+// BrowserOpenURL Use the default browser to open the url
+func (f *Frontend) BrowserOpenURL(url string) {
+	// Specific method implementation
+	_ = browser.OpenURL(url)
+}

v2/internal/frontend/desktop/linux/dialog.go

@@ -0,0 +1,26 @@
+//go:build linux
+// +build linux
+
+package linux
+
+import "github.com/wailsapp/wails/v2/internal/frontend"
+
+func (f *Frontend) OpenFileDialog(dialogOptions frontend.OpenDialogOptions) (string, error) {
+	panic("implement me")
+}
+
+func (f *Frontend) OpenMultipleFilesDialog(dialogOptions frontend.OpenDialogOptions) ([]string, error) {
+	panic("implement me")
+}
+
+func (f *Frontend) OpenDirectoryDialog(dialogOptions frontend.OpenDialogOptions) (string, error) {
+	panic("implement me")
+}
+
+func (f *Frontend) SaveFileDialog(dialogOptions frontend.SaveDialogOptions) (string, error) {
+	panic("implement me")
+}
+
+func (f *Frontend) MessageDialog(dialogOptions frontend.MessageDialogOptions) (string, error) {
+	panic("implement me")
+}

v2/internal/frontend/desktop/linux/frontend.go

@@ -0,0 +1,358 @@
+//go:build linux
+// +build linux
+
+package linux
+
+/*
+#cgo linux pkg-config: gtk+-3.0 webkit2gtk-4.0
+
+#include "gtk/gtk.h"
+#include "webkit2/webkit2.h"
+
+extern void callDispatchedMethod(int id);
+
+static inline void processDispatchID(gpointer id) {
+    callDispatchedMethod(GPOINTER_TO_INT(id));
+}
+
+static void gtkDispatch(int id) {
+	gdk_threads_add_idle((GSourceFunc)processDispatchID, GINT_TO_POINTER(id));
+}
+
+*/
+import "C"
+import (
+	"context"
+	"encoding/json"
+	"log"
+	"os"
+	"strconv"
+	"sync"
+	"text/template"
+	"unsafe"
+
+	"github.com/wailsapp/wails/v2/internal/binding"
+	"github.com/wailsapp/wails/v2/internal/frontend"
+	"github.com/wailsapp/wails/v2/internal/frontend/assetserver"
+	"github.com/wailsapp/wails/v2/internal/frontend/desktop/common"
+	"github.com/wailsapp/wails/v2/internal/logger"
+	"github.com/wailsapp/wails/v2/pkg/options"
+)
+
+type Frontend struct {
+
+	// Context
+	ctx context.Context
+
+	frontendOptions *options.App
+	logger          *logger.Logger
+	debug           bool
+
+	// Assets
+	assets   *assetserver.DesktopAssetServer
+	startURL string
+
+	// main window handle
+	mainWindow *Window
+	// minWidth, minHeight, maxWidth, maxHeight int
+	bindings        *binding.Bindings
+	dispatcher      frontend.Dispatcher
+	servingFromDisk bool
+}
+
+func NewFrontend(ctx context.Context, appoptions *options.App, myLogger *logger.Logger, appBindings *binding.Bindings, dispatcher frontend.Dispatcher) *Frontend {
+
+	// Set GDK_BACKEND=x11 to prevent warnings
+	os.Setenv("GDK_BACKEND", "x11")
+
+	result := &Frontend{
+		frontendOptions: appoptions,
+		logger:          myLogger,
+		bindings:        appBindings,
+		dispatcher:      dispatcher,
+		ctx:             ctx,
+		startURL:        "file://wails/",
+	}
+
+	bindingsJSON, err := appBindings.ToJSON()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	_devServerURL := ctx.Value("devserverurl")
+	if _devServerURL != nil {
+		devServerURL := _devServerURL.(string)
+		if len(devServerURL) > 0 && devServerURL != "http://localhost:34115" {
+			result.startURL = devServerURL
+			return result
+		}
+	}
+
+	// Check if we have been given a directory to serve assets from.
+	// If so, this means we are in dev mode and are serving assets off disk.
+	// We indicate this through the `servingFromDisk` flag to ensure requests
+	// aren't cached by webkit.
+
+	_assetdir := ctx.Value("assetdir")
+	if _assetdir != nil {
+		result.servingFromDisk = true
+	}
+
+	assets, err := assetserver.NewDesktopAssetServer(ctx, appoptions.Assets, bindingsJSON)
+	if err != nil {
+		log.Fatal(err)
+	}
+	result.assets = assets
+
+	go result.startMessageProcessor()
+	go result.startRequestProcessor()
+
+	C.gtk_init(nil, nil)
+
+	var _debug = ctx.Value("debug")
+	if _debug != nil {
+		result.debug = _debug.(bool)
+	}
+	result.mainWindow = NewWindow(appoptions, result.debug)
+
+	return result
+}
+
+func (f *Frontend) startMessageProcessor() {
+	for message := range messageBuffer {
+		f.processMessage(message)
+	}
+}
+
+func (f *Frontend) WindowReload() {
+	f.ExecJS("runtime.WindowReload();")
+}
+
+func (f *Frontend) Run(ctx context.Context) error {
+
+	f.ctx = context.WithValue(ctx, "frontend", f)
+
+	go func() {
+		if f.frontendOptions.OnStartup != nil {
+			f.frontendOptions.OnStartup(f.ctx)
+		}
+	}()
+
+	f.mainWindow.Run()
+
+	return nil
+}
+
+func (f *Frontend) WindowCenter() {
+	f.mainWindow.Center()
+}
+
+func (f *Frontend) WindowSetPos(x, y int) {
+	f.mainWindow.SetPos(x, y)
+}
+func (f *Frontend) WindowGetPos() (int, int) {
+	return f.mainWindow.Pos()
+}
+
+func (f *Frontend) WindowSetSize(width, height int) {
+	f.mainWindow.SetSize(width, height)
+}
+
+func (f *Frontend) WindowGetSize() (int, int) {
+	return f.mainWindow.Size()
+}
+
+func (f *Frontend) WindowSetTitle(title string) {
+	f.mainWindow.SetTitle(title)
+}
+
+func (f *Frontend) WindowFullscreen() {
+	f.mainWindow.Fullscreen()
+}
+
+func (f *Frontend) WindowUnFullscreen() {
+	f.mainWindow.UnFullscreen()
+}
+
+func (f *Frontend) WindowShow() {
+	f.mainWindow.Show()
+}
+
+func (f *Frontend) WindowHide() {
+	f.mainWindow.Hide()
+}
+func (f *Frontend) WindowMaximise() {
+	f.mainWindow.Maximise()
+}
+func (f *Frontend) WindowUnmaximise() {
+	f.mainWindow.UnMaximise()
+}
+func (f *Frontend) WindowMinimise() {
+	f.mainWindow.Minimise()
+}
+func (f *Frontend) WindowUnminimise() {
+	f.mainWindow.UnMinimise()
+}
+
+func (f *Frontend) WindowSetMinSize(width int, height int) {
+	f.mainWindow.SetMinSize(width, height)
+}
+func (f *Frontend) WindowSetMaxSize(width int, height int) {
+	f.mainWindow.SetMaxSize(width, height)
+}
+
+func (f *Frontend) WindowSetRGBA(col *options.RGBA) {
+	if col == nil {
+		return
+	}
+}
+
+func (f *Frontend) Quit() {
+	if f.frontendOptions.OnBeforeClose != nil && f.frontendOptions.OnBeforeClose(f.ctx) {
+		return
+	}
+	f.mainWindow.Quit()
+}
+
+type EventNotify struct {
+	Name string        `json:"name"`
+	Data []interface{} `json:"data"`
+}
+
+func (f *Frontend) Notify(name string, data ...interface{}) {
+	notification := EventNotify{
+		Name: name,
+		Data: data,
+	}
+	payload, err := json.Marshal(notification)
+	if err != nil {
+		f.logger.Error(err.Error())
+		return
+	}
+	f.ExecJS(`window.wails.EventsNotify('` + template.JSEscapeString(string(payload)) + `');`)
+}
+
+func (f *Frontend) processMessage(message string) {
+	if message == "drag" {
+		// if !f.mainWindow.IsFullScreen() {
+		f.startDrag()
+		// }
+		return
+	}
+
+	go func() {
+		result, err := f.dispatcher.ProcessMessage(message, f)
+		if err != nil {
+			f.logger.Error(err.Error())
+			f.Callback(result)
+			return
+		}
+		if result == "" {
+			return
+		}
+
+		switch result[0] {
+		case 'c':
+			// Callback from a method call
+			f.Callback(result[1:])
+		default:
+			f.logger.Info("Unknown message returned from dispatcher: %+v", result)
+		}
+	}()
+}
+
+func (f *Frontend) Callback(message string) {
+	f.ExecJS(`window.wails.Callback(` + strconv.Quote(message) + `);`)
+}
+
+func (f *Frontend) startDrag() {
+	f.dispatch(func() {
+		f.mainWindow.StartDrag()
+	})
+}
+
+func (f *Frontend) ExecJS(js string) {
+	f.dispatch(func() {
+		f.mainWindow.ExecJS(js)
+	})
+}
+
+func (f *Frontend) dispatch(fn func()) {
+	dispatchCallbackLock.Lock()
+	id := 0
+	for fn := dispatchCallbacks[id]; fn != nil; id++ {
+	}
+	dispatchCallbacks[id] = fn
+	dispatchCallbackLock.Unlock()
+	C.gtkDispatch(C.int(id))
+}
+
+var messageBuffer = make(chan string, 100)
+
+//export processMessage
+func processMessage(message *C.char) {
+	goMessage := C.GoString(message)
+	messageBuffer <- goMessage
+}
+
+// Map of functions passed to dispatch()
+var dispatchCallbacks = make(map[int]func())
+var dispatchCallbackLock sync.Mutex
+
+//export callDispatchedMethod
+func callDispatchedMethod(cid C.int) {
+	id := int(cid)
+	fn := dispatchCallbacks[id]
+	if fn != nil {
+		go fn()
+		dispatchCallbackLock.Lock()
+		delete(dispatchCallbacks, id)
+		dispatchCallbackLock.Unlock()
+	} else {
+		println("Error: No dispatch method with id", id, cid)
+	}
+}
+
+var requestBuffer = make(chan unsafe.Pointer, 100)
+
+func (f *Frontend) startRequestProcessor() {
+	for request := range requestBuffer {
+		f.processRequest(request)
+	}
+}
+
+//export processURLRequest
+func processURLRequest(request unsafe.Pointer) {
+	requestBuffer <- request
+}
+
+func (f *Frontend) processRequest(request unsafe.Pointer) {
+	req := (*C.WebKitURISchemeRequest)(request)
+	uri := C.webkit_uri_scheme_request_get_uri(req)
+	goURI := C.GoString(uri)
+
+	file, match, err := common.TranslateUriToFile(goURI, "wails", "")
+	if err != nil {
+		// TODO Handle errors
+		return
+	} else if !match {
+		// This should never happen on linux, because we get only called for wails://
+		panic("Unexpected host for request on wails:// scheme")
+	}
+
+	// Load file from asset store
+	content, mimeType, err := f.assets.Load(file)
+	if err != nil {
+		return
+	}
+
+	// TODO How to return 404/500 errors to webkit?
+
+	cContent := C.CString(string(content))
+	defer C.free(unsafe.Pointer(cContent))
+	cMimeType := C.CString(mimeType)
+	defer C.free(unsafe.Pointer(cMimeType))
+	cLen := C.long(len(content))
+	stream := C.g_memory_input_stream_new_from_data(unsafe.Pointer(cContent), cLen, nil)
+	C.webkit_uri_scheme_request_finish(req, stream, cLen, cMimeType)
+}

v2/internal/frontend/desktop/linux/menu.go

@@ -0,0 +1,14 @@
+//go:build linux
+// +build linux
+
+package linux
+
+import "github.com/wailsapp/wails/v2/pkg/menu"
+
+func (f *Frontend) MenuSetApplicationMenu(menu *menu.Menu) {
+	panic("implement me")
+}
+
+func (f *Frontend) MenuUpdateApplicationMenu() {
+	panic("implement me")
+}

v2/internal/frontend/desktop/linux/window.go

@@ -0,0 +1,410 @@
+//go:build linux
+// +build linux
+
+package linux
+
+/*
+#cgo linux pkg-config: gtk+-3.0 webkit2gtk-4.0
+
+#include "gtk/gtk.h"
+#include "webkit2/webkit2.h"
+#include <stdio.h>
+#include <limits.h>
+
+static GtkWidget* GTKWIDGET(void *pointer) {
+	return GTK_WIDGET(pointer);
+}
+
+static GtkWindow* GTKWINDOW(void *pointer) {
+	return GTK_WINDOW(pointer);
+}
+
+static void SetMinSize(GtkWindow* window, int width, int height) {
+	GdkGeometry size;
+	size.min_height = height;
+	size.min_width = width;
+	gtk_window_set_geometry_hints(window, NULL, &size, GDK_HINT_MIN_SIZE);
+}
+
+static void SetMaxSize(GtkWindow* window, int width, int height) {
+	GdkGeometry size;
+	if( width == 0 ) {
+		width = INT_MAX;
+	}
+	if( height == 0 ) {
+		height = INT_MAX;
+	}
+
+	size.max_height = height;
+	size.max_width = width;
+	gtk_window_set_geometry_hints(window, NULL, &size, GDK_HINT_MAX_SIZE);
+}
+
+GdkRectangle getCurrentMonitorGeometry(GtkWindow *window) {
+    // Get the monitor that the window is currently on
+    GdkDisplay *display = gtk_widget_get_display(GTK_WIDGET(window));
+    GdkWindow *gdk_window = gtk_widget_get_window(GTK_WIDGET(window));
+    GdkMonitor *monitor = gdk_display_get_monitor_at_window (display, gdk_window);
+
+    // Get the geometry of the monitor
+    GdkRectangle result;
+    gdk_monitor_get_geometry (monitor,&result);
+    return result;
+}
+
+void SetPosition(GtkWindow *window, int x, int y) {
+	GdkRectangle monitorDimensions = getCurrentMonitorGeometry(window);
+	gtk_window_move(window, monitorDimensions.x + x, monitorDimensions.y + y);
+}
+
+void Center(GtkWindow *window)
+{
+    // Get the geometry of the monitor
+    GdkRectangle m = getCurrentMonitorGeometry(window);
+
+    // Get the window width/height
+    int windowWidth, windowHeight;
+    gtk_window_get_size(window, &windowWidth, &windowHeight);
+
+	int newX = ((m.width - windowWidth) / 2) + m.x;
+	int newY = ((m.height - windowHeight) / 2) + m.y;
+
+    // Place the window at the center of the monitor
+    gtk_window_move(window, newX, newY);
+}
+
+int IsFullscreen(GtkWidget *widget) {
+	GdkWindow *gdkwindow = gtk_widget_get_window(widget);
+	GdkWindowState state = gdk_window_get_state(GDK_WINDOW(gdkwindow));
+	return state & GDK_WINDOW_STATE_FULLSCREEN == GDK_WINDOW_STATE_FULLSCREEN;
+}
+
+extern void processMessage(char*);
+
+static void sendMessageToBackend(WebKitUserContentManager *contentManager,
+                                 WebKitJavascriptResult *result,
+                                 void*)
+{
+#if WEBKIT_MAJOR_VERSION >= 2 && WEBKIT_MINOR_VERSION >= 22
+    JSCValue *value = webkit_javascript_result_get_js_value(result);
+    char *message = jsc_value_to_string(value);
+#else
+    JSGlobalContextRef context = webkit_javascript_result_get_global_context(result);
+    JSValueRef value = webkit_javascript_result_get_value(result);
+    JSStringRef js = JSValueToStringCopy(context, value, NULL);
+    size_t messageSize = JSStringGetMaximumUTF8CStringSize(js);
+    char *message = g_new(char, messageSize);
+    JSStringGetUTF8CString(js, message, messageSize);
+    JSStringRelease(js);
+#endif
+    processMessage(message);
+    g_free(message);
+}
+
+ulong setupInvokeSignal(void* contentManager) {
+	return g_signal_connect((WebKitUserContentManager*)contentManager, "script-message-received::external", G_CALLBACK(sendMessageToBackend), NULL);
+}
+
+// These are the x,y & time of the last mouse down event
+// It's used for window dragging
+float xroot = 0.0f;
+float yroot = 0.0f;
+int dragTime = -1;
+
+gboolean buttonPress(GtkWidget *widget, GdkEventButton *event, void* dummy)
+{
+	if( event == NULL ) {
+		xroot = yroot = 0.0f;
+		dragTime = -1;
+		return FALSE;
+	}
+	if (event->type == GDK_BUTTON_PRESS && event->button == 1)
+    {
+        xroot = event->x_root;
+        yroot = event->y_root;
+        dragTime = event->time;
+    }
+    return FALSE;
+}
+
+gboolean buttonRelease(GtkWidget *widget, GdkEventButton *event, void* dummy)
+{
+    if (event == NULL || (event->type == GDK_BUTTON_RELEASE && event->button == 1))
+    {
+		xroot = yroot = 0.0f;
+		dragTime = -1;
+    }
+    return FALSE;
+}
+
+void connectButtons(void* webview) {
+	g_signal_connect(WEBKIT_WEB_VIEW(webview), "button-press-event", G_CALLBACK(buttonPress), NULL);
+	g_signal_connect(WEBKIT_WEB_VIEW(webview), "button-release-event", G_CALLBACK(buttonRelease), NULL);
+}
+
+extern void processURLRequest(WebKitURISchemeRequest *request);
+
+// This is called when the close button on the window is pressed
+gboolean close_button_pressed(GtkWidget *widget, GdkEvent *event, void*)
+{
+   	processMessage("Q");
+    return FALSE;
+}
+
+GtkWidget* setupWebview(void* contentManager, GtkWindow* window, int hideWindowOnClose) {
+	GtkWidget* webview = webkit_web_view_new_with_user_content_manager((WebKitUserContentManager*)contentManager);
+	gtk_container_add(GTK_CONTAINER(window), webview);
+	WebKitWebContext *context = webkit_web_context_get_default();
+	webkit_web_context_register_uri_scheme(context, "wails", (WebKitURISchemeRequestCallback)processURLRequest, NULL, NULL);
+	//g_signal_connect(G_OBJECT(webview), "load-changed", G_CALLBACK(webview_load_changed_cb), NULL);
+	if (hideWindowOnClose) {
+		g_signal_connect(GTK_WIDGET(window), "delete-event", G_CALLBACK(gtk_widget_hide_on_delete), NULL);
+	} else {
+		g_signal_connect(GTK_WIDGET(window), "delete-event", G_CALLBACK(close_button_pressed), NULL);
+	}
+	return webview;
+}
+
+void devtoolsEnabled(void* webview, int enabled) {
+	WebKitSettings *settings = webkit_web_view_get_settings(WEBKIT_WEB_VIEW(webview));
+	gboolean genabled = enabled == 1 ? true : false;
+	webkit_settings_set_enable_developer_extras(settings, genabled);
+}
+
+void loadIndex(void* webview) {
+	webkit_web_view_load_uri(WEBKIT_WEB_VIEW(webview), "wails:///");
+}
+
+static void startDrag(void *webview, GtkWindow* mainwindow)
+{
+    // Ignore non-toplevel widgets
+    GtkWidget *window = gtk_widget_get_toplevel(GTK_WIDGET(webview));
+    if (!GTK_IS_WINDOW(window)) return;
+
+    gtk_window_begin_move_drag(mainwindow, 1, xroot, yroot, dragTime);
+}
+
+*/
+import "C"
+import (
+	"github.com/wailsapp/wails/v2/pkg/options"
+	"unsafe"
+)
+
+func gtkBool(input bool) C.gboolean {
+	if input {
+		return C.gboolean(1)
+	}
+	return C.gboolean(0)
+}
+
+type Window struct {
+	appoptions     *options.App
+	debug          bool
+	gtkWindow      unsafe.Pointer
+	contentManager unsafe.Pointer
+	webview        unsafe.Pointer
+}
+
+func bool2Cint(value bool) C.int {
+	if value {
+		return C.int(1)
+	}
+	return C.int(0)
+}
+
+func NewWindow(appoptions *options.App, debug bool) *Window {
+
+	result := &Window{
+		appoptions: appoptions,
+		debug:      debug,
+	}
+
+	gtkWindow := C.gtk_window_new(C.GTK_WINDOW_TOPLEVEL)
+	C.g_object_ref_sink(C.gpointer(gtkWindow))
+	result.gtkWindow = unsafe.Pointer(gtkWindow)
+
+	result.contentManager = unsafe.Pointer(C.webkit_user_content_manager_new())
+	external := C.CString("external")
+	defer C.free(unsafe.Pointer(external))
+	C.webkit_user_content_manager_register_script_message_handler(result.cWebKitUserContentManager(), external)
+	C.setupInvokeSignal(result.contentManager)
+
+	webview := C.setupWebview(result.contentManager, result.asGTKWindow(), bool2Cint(appoptions.HideWindowOnClose))
+	result.webview = unsafe.Pointer(webview)
+	buttonPressedName := C.CString("button-press-event")
+	defer C.free(unsafe.Pointer(buttonPressedName))
+	C.connectButtons(unsafe.Pointer(webview))
+
+	if debug {
+		C.devtoolsEnabled(unsafe.Pointer(webview), C.int(1))
+	}
+
+	// Setup window
+	result.SetKeepAbove(appoptions.AlwaysOnTop)
+	result.SetResizable(!appoptions.DisableResize)
+	result.SetSize(appoptions.Width, appoptions.Height)
+	result.SetDecorated(!appoptions.Frameless)
+	result.SetTitle(appoptions.Title)
+	result.SetMinSize(appoptions.MinWidth, appoptions.MinHeight)
+	result.SetMaxSize(appoptions.MaxWidth, appoptions.MaxHeight)
+
+	return result
+}
+
+func (w *Window) asGTKWidget() *C.GtkWidget {
+	return C.GTKWIDGET(w.gtkWindow)
+}
+
+func (w *Window) asGTKWindow() *C.GtkWindow {
+	return C.GTKWINDOW(w.gtkWindow)
+}
+
+func (w *Window) cWebKitUserContentManager() *C.WebKitUserContentManager {
+	return (*C.WebKitUserContentManager)(w.contentManager)
+}
+
+func (w *Window) Fullscreen() {
+	C.gtk_window_fullscreen(w.asGTKWindow())
+}
+
+func (w *Window) UnFullscreen() {
+	C.gtk_window_unfullscreen(w.asGTKWindow())
+}
+
+func (w *Window) Destroy() {
+	C.g_object_unref(C.gpointer(w.gtkWindow))
+	C.gtk_widget_destroy(w.asGTKWidget())
+}
+
+func (w *Window) Close() {
+	C.gtk_window_close(w.asGTKWindow())
+}
+
+func (w *Window) Center() {
+	C.Center(w.asGTKWindow())
+}
+
+func (w *Window) SetPos(x int, y int) {
+	cX := C.int(x)
+	cY := C.int(y)
+	C.gtk_window_move(w.asGTKWindow(), cX, cY)
+}
+
+func (w *Window) Size() (int, int) {
+	var width, height C.int
+	C.gtk_window_get_size(w.asGTKWindow(), &width, &height)
+	return int(width), int(height)
+}
+
+func (w *Window) Pos() (int, int) {
+	var width, height C.int
+	C.gtk_window_get_position(w.asGTKWindow(), &width, &height)
+	return int(width), int(height)
+}
+
+func (w *Window) SetMaxSize(maxWidth int, maxHeight int) {
+	C.SetMaxSize(w.asGTKWindow(), C.int(maxWidth), C.int(maxHeight))
+}
+
+func (w *Window) SetMinSize(minWidth int, minHeight int) {
+	C.SetMinSize(w.asGTKWindow(), C.int(minWidth), C.int(minHeight))
+}
+
+func (w *Window) Show() {
+	C.gtk_widget_show(w.asGTKWidget())
+}
+
+func (w *Window) Hide() {
+	C.gtk_widget_hide(w.asGTKWidget())
+}
+
+func (w *Window) Maximise() {
+	C.gtk_window_maximize(w.asGTKWindow())
+}
+
+func (w *Window) UnMaximise() {
+	C.gtk_window_unmaximize(w.asGTKWindow())
+}
+
+func (w *Window) Minimise() {
+	C.gtk_window_iconify(w.asGTKWindow())
+}
+
+func (w *Window) UnMinimise() {
+	C.gtk_window_present(w.asGTKWindow())
+}
+
+func (w *Window) IsFullScreen() bool {
+	result := C.IsFullscreen(w.asGTKWidget())
+	if result == 1 {
+		return true
+	}
+	return false
+}
+
+func (w *Window) SetRGBA(r uint8, g uint8, b uint8, a uint8) {
+	//C.SetRGBA(w.context, C.int(r), C.int(g), C.int(b), C.int(a))
+}
+
+//func (w *Window) SetApplicationMenu(inMenu *menu.Menu) {
+//	//mainMenu := NewNSMenu(w.context, "")
+//	//processMenu(mainMenu, inMenu)
+//	//C.SetAsApplicationMenu(w.context, mainMenu.nsmenu)
+//}
+
+func (w *Window) UpdateApplicationMenu() {
+	//C.UpdateApplicationMenu(w.context)
+}
+
+func (w *Window) Run() {
+	C.loadIndex(w.webview)
+	C.gtk_widget_show_all(w.asGTKWidget())
+	w.Center()
+	switch w.appoptions.WindowStartState {
+	case options.Fullscreen:
+		w.Fullscreen()
+	case options.Minimised:
+		w.Minimise()
+	case options.Maximised:
+		w.Maximise()
+	}
+	C.gtk_main()
+	w.Destroy()
+}
+
+func (w *Window) SetKeepAbove(top bool) {
+	C.gtk_window_set_keep_above(w.asGTKWindow(), gtkBool(top))
+}
+
+func (w *Window) SetResizable(resizable bool) {
+	C.gtk_window_set_resizable(w.asGTKWindow(), gtkBool(resizable))
+}
+
+func (w *Window) SetSize(width int, height int) {
+	C.gtk_window_resize(w.asGTKWindow(), C.gint(width), C.gint(height))
+}
+
+func (w *Window) SetDecorated(frameless bool) {
+	C.gtk_window_set_decorated(w.asGTKWindow(), gtkBool(frameless))
+}
+
+func (w *Window) SetTitle(title string) {
+	cTitle := C.CString(title)
+	defer C.free(unsafe.Pointer(cTitle))
+	C.gtk_window_set_title(w.asGTKWindow(), cTitle)
+}
+
+func (w *Window) ExecJS(js string) {
+	script := C.CString(js)
+	defer C.free(unsafe.Pointer(script))
+	C.webkit_web_view_run_javascript((*C.WebKitWebView)(w.webview), script, nil, nil, nil)
+}
+
+func (w *Window) StartDrag() {
+	C.startDrag(w.webview, w.asGTKWindow())
+}
+
+func (w *Window) Quit() {
+	C.gtk_main_quit()
+}

v2/internal/frontend/desktop/windows/frontend.go

@@ -8,6 +8,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"log"
+	"os"
 	"runtime"
 	"strconv"
 	"strings"
@@ -19,6 +20,7 @@ import (
 	"github.com/wailsapp/wails/v2/internal/binding"
 	"github.com/wailsapp/wails/v2/internal/frontend"
 	"github.com/wailsapp/wails/v2/internal/frontend/assetserver"
+	"github.com/wailsapp/wails/v2/internal/frontend/desktop/common"
 	"github.com/wailsapp/wails/v2/internal/logger"
 	"github.com/wailsapp/wails/v2/pkg/options"
 )
@@ -43,6 +45,8 @@ type Frontend struct {
 	bindings                                 *binding.Bindings
 	dispatcher                               frontend.Dispatcher
 	servingFromDisk                          bool
+
+	hasStarted bool
 }
 
 func NewFrontend(ctx context.Context, appoptions *options.App, myLogger *logger.Logger, appBindings *binding.Bindings, dispatcher frontend.Dispatcher) *Frontend {
@@ -130,10 +134,6 @@ func (f *Frontend) Run(ctx context.Context) error {
 		}
 	}()
 
-	if f.frontendOptions.Fullscreen {
-		mainWindow.Fullscreen()
-	}
-
 	mainWindow.Run()
 	mainWindow.Close()
 	return nil
@@ -172,11 +172,17 @@ func (f *Frontend) WindowFullscreen() {
 	runtime.LockOSThread()
 	f.mainWindow.SetMaxSize(0, 0)
 	f.mainWindow.SetMinSize(0, 0)
+	if f.frontendOptions.Frameless && f.frontendOptions.DisableResize == false {
+		f.ExecJS("window.wails.flags.enableResize = false;")
+	}
 	f.mainWindow.Fullscreen()
 }
 
 func (f *Frontend) WindowUnFullscreen() {
 	runtime.LockOSThread()
+	if f.frontendOptions.Frameless && f.frontendOptions.DisableResize == false {
+		f.ExecJS("window.wails.flags.enableResize = true;")
+	}
 	f.mainWindow.UnFullscreen()
 	f.mainWindow.SetMaxSize(f.maxWidth, f.maxHeight)
 	f.mainWindow.SetMinSize(f.minWidth, f.minHeight)
@@ -227,7 +233,7 @@ func (f *Frontend) WindowSetRGBA(col *options.RGBA) {
 		return
 	}
 
-	f.mainWindow.Dispatch(func() {
+	f.mainWindow.Invoke(func() {
 		controller := f.chromium.GetController()
 		controller2 := controller.GetICoreWebView2Controller2()
 
@@ -255,7 +261,12 @@ func (f *Frontend) WindowSetRGBA(col *options.RGBA) {
 }
 
 func (f *Frontend) Quit() {
-	winc.Exit()
+	if f.frontendOptions.OnBeforeClose != nil && f.frontendOptions.OnBeforeClose(f.ctx) {
+		return
+	}
+	// Exit must be called on the Main-Thread. It calls PostQuitMessage which sends the WM_QUIT message to the thread's
+	// message queue and our message queue runs on the Main-Thread.
+	f.mainWindow.Invoke(winc.Exit)
 }
 
 func (f *Frontend) setupChromium() {
@@ -329,33 +340,66 @@ func (f *Frontend) processRequest(req *edge.ICoreWebView2WebResourceRequest, arg
 	//Get the request
 	uri, _ := req.GetUri()
 
-	// Translate URI
-	uri = strings.TrimPrefix(uri, "file://wails")
-	if !strings.HasPrefix(uri, "/") {
-		return
+	var content []byte
+	var mimeType string
+
+	// Translate URI to file
+	file, match, err := common.TranslateUriToFile(uri, "file", "wails")
+	if err == nil {
+		if !match {
+			// In this case we should let the WebView2 handle the request with it's default handler
+			return
+		}
+
+		// Load file from asset store
+		content, mimeType, err = f.assets.Load(file)
 	}
 
-	// Load file from asset store
-	content, mimeType, err := f.assets.Load(uri)
+	statusCode := 200
+	reasonPhrase := "OK"
 	if err != nil {
-		return
+		if os.IsNotExist(err) {
+			statusCode = 404
+			reasonPhrase = "Not Found"
+		} else {
+			err = fmt.Errorf("Error processing request %s: %w", uri, err)
+			f.logger.Error(err.Error())
+			statusCode = 500
+			reasonPhrase = "Internal Server Error"
+		}
+	}
+
+	headers := []string{}
+	if mimeType != "" {
+		headers = append(headers, "Content-Type: "+mimeType)
+	}
+	if content != nil && f.servingFromDisk {
+		headers = append(headers, "Pragma: no-cache")
 	}
 
 	env := f.chromium.Environment()
-	headers := "Content-Type: " + mimeType
-	if f.servingFromDisk {
-		headers += "\nPragma: no-cache"
-	}
-	response, err := env.CreateWebResourceResponse(content, 200, "OK", headers)
+	response, err := env.CreateWebResourceResponse(content, statusCode, reasonPhrase, strings.Join(headers, "\n"))
 	if err != nil {
 		return
 	}
+	defer response.Release()
+
 	// Send response back
 	err = args.PutResponse(response)
 	if err != nil {
 		return
 	}
-	return
+}
+
+var edgeMap = map[string]uintptr{
+	"n-resize":  w32.HTTOP,
+	"ne-resize": w32.HTTOPRIGHT,
+	"e-resize":  w32.HTRIGHT,
+	"se-resize": w32.HTBOTTOMRIGHT,
+	"s-resize":  w32.HTBOTTOM,
+	"sw-resize": w32.HTBOTTOMLEFT,
+	"w-resize":  w32.HTLEFT,
+	"nw-resize": w32.HTTOPLEFT,
 }
 
 func (f *Frontend) processMessage(message string) {
@@ -368,27 +412,45 @@ func (f *Frontend) processMessage(message string) {
 		}
 		return
 	}
-	result, err := f.dispatcher.ProcessMessage(message, f)
-	if err != nil {
-		f.logger.Error(err.Error())
-		f.Callback(result)
-		return
-	}
-	if result == "" {
+	if strings.HasPrefix(message, "resize:") {
+		if !f.mainWindow.IsFullScreen() {
+			sl := strings.Split(message, ":")
+			if len(sl) != 2 {
+				f.logger.Info("Unknown message returned from dispatcher: %+v", message)
+				return
+			}
+			edge := edgeMap[sl[1]]
+			err := f.startResize(edge)
+			if err != nil {
+				f.logger.Error(err.Error())
+			}
+		}
 		return
 	}
 
-	switch result[0] {
-	case 'c':
-		// Callback from a method call
-		f.Callback(result[1:])
-	default:
-		f.logger.Info("Unknown message returned from dispatcher: %+v", result)
-	}
+	go func() {
+		result, err := f.dispatcher.ProcessMessage(message, f)
+		if err != nil {
+			f.logger.Error(err.Error())
+			f.Callback(result)
+			return
+		}
+		if result == "" {
+			return
+		}
+
+		switch result[0] {
+		case 'c':
+			// Callback from a method call
+			f.Callback(result[1:])
+		default:
+			f.logger.Info("Unknown message returned from dispatcher: %+v", result)
+		}
+	}()
 }
 
 func (f *Frontend) Callback(message string) {
-	f.mainWindow.Dispatch(func() {
+	f.mainWindow.Invoke(func() {
 		f.chromium.Eval(`window.wails.Callback(` + strconv.Quote(message) + `);`)
 	})
 }
@@ -401,8 +463,16 @@ func (f *Frontend) startDrag() error {
 	return nil
 }
 
+func (f *Frontend) startResize(border uintptr) error {
+	if !w32.ReleaseCapture() {
+		return fmt.Errorf("unable to release mouse capture")
+	}
+	w32.SendMessage(f.mainWindow.Handle(), w32.WM_NCLBUTTONDOWN, border, 0)
+	return nil
+}
+
 func (f *Frontend) ExecJS(js string) {
-	f.mainWindow.Dispatch(func() {
+	f.mainWindow.Invoke(func() {
 		f.chromium.Eval(js)
 	})
 }
@@ -412,10 +482,14 @@ func (f *Frontend) navigationCompleted(sender *edge.ICoreWebView2, args *edge.IC
 		go f.frontendOptions.OnDomReady(f.ctx)
 	}
 
-	// If you want to start hidden, return
-	if f.frontendOptions.StartHidden {
+	if f.frontendOptions.Frameless && f.frontendOptions.DisableResize == false {
+		f.ExecJS("window.wails.flags.enableResize = true;")
+	}
+
+	if f.hasStarted {
 		return
 	}
+	f.hasStarted = true
 
 	// Hack to make it visible: https://github.com/MicrosoftEdge/WebView2Feedback/issues/1077#issuecomment-825375026
 	err := f.chromium.Hide()
@@ -426,6 +500,24 @@ func (f *Frontend) navigationCompleted(sender *edge.ICoreWebView2, args *edge.IC
 	if err != nil {
 		log.Fatal(err)
 	}
-	f.mainWindow.Show()
+
+	if f.frontendOptions.StartHidden {
+		return
+	}
+
+	switch f.frontendOptions.WindowStartState {
+	case options.Maximised:
+		f.mainWindow.Maximise()
+	case options.Minimised:
+		f.mainWindow.Minimise()
+	case options.Fullscreen:
+		f.mainWindow.Fullscreen()
+		f.mainWindow.Show()
+	default:
+		if f.frontendOptions.Fullscreen {
+			f.mainWindow.Fullscreen()
+		}
+		f.mainWindow.Show()
+	}
 
 }

v2/internal/frontend/desktop/windows/window.go

@@ -7,36 +7,36 @@ import (
 	"github.com/leaanthony/winc/w32"
 	"github.com/wailsapp/wails/v2/pkg/menu"
 	"github.com/wailsapp/wails/v2/pkg/options"
-	"sync"
 )
 
 type Window struct {
 	winc.Form
 	frontendOptions *options.App
 	applicationMenu *menu.Menu
-	m               sync.Mutex
-	dispatchq       []func()
 }
 
-func NewWindow(parent winc.Controller, options *options.App) *Window {
+func NewWindow(parent winc.Controller, appoptions *options.App) *Window {
 	result := new(Window)
-	result.frontendOptions = options
+	result.frontendOptions = appoptions
 	result.SetIsForm(true)
 
 	var exStyle int
-	if options.Windows != nil {
+	if appoptions.Windows != nil {
 		exStyle = w32.WS_EX_CONTROLPARENT | w32.WS_EX_APPWINDOW
-		if options.Windows.WindowIsTranslucent {
+		if appoptions.Windows.WindowIsTranslucent {
 			exStyle |= w32.WS_EX_NOREDIRECTIONBITMAP
 		}
 	}
-	if options.AlwaysOnTop {
+	if appoptions.AlwaysOnTop {
 		exStyle |= w32.WS_EX_TOPMOST
 	}
 
 	var dwStyle = w32.WS_OVERLAPPEDWINDOW
-	if options.Frameless {
+	if appoptions.Frameless {
 		dwStyle = w32.WS_POPUP
+		if winoptions := appoptions.Windows; winoptions != nil && winoptions.EnableFramelessBorder {
+			dwStyle |= w32.WS_BORDER
+		}
 	}
 
 	winc.RegClassOnlyOnce("wailsWindow")
@@ -44,7 +44,7 @@ func NewWindow(parent winc.Controller, options *options.App) *Window {
 	result.SetParent(parent)
 
 	loadIcon := true
-	if options.Windows != nil && options.Windows.DisableWindowIcon == true {
+	if appoptions.Windows != nil && appoptions.Windows.DisableWindowIcon == true {
 		loadIcon = false
 	}
 	if loadIcon {
@@ -53,21 +53,21 @@ func NewWindow(parent winc.Controller, options *options.App) *Window {
 		}
 	}
 
-	result.SetSize(options.Width, options.Height)
-	result.SetText(options.Title)
-	if options.Frameless == false && !options.Fullscreen {
-		result.EnableMaxButton(!options.DisableResize)
-		result.EnableSizable(!options.DisableResize)
-		result.SetMinSize(options.MinWidth, options.MinHeight)
-		result.SetMaxSize(options.MaxWidth, options.MaxHeight)
+	result.SetSize(appoptions.Width, appoptions.Height)
+	result.SetText(appoptions.Title)
+	if appoptions.Frameless == false && !appoptions.Fullscreen {
+		result.EnableMaxButton(!appoptions.DisableResize)
+		result.EnableSizable(!appoptions.DisableResize)
+		result.SetMinSize(appoptions.MinWidth, appoptions.MinHeight)
+		result.SetMaxSize(appoptions.MaxWidth, appoptions.MaxHeight)
 	}
 
-	if options.Windows != nil {
-		if options.Windows.WindowIsTranslucent {
+	if appoptions.Windows != nil {
+		if appoptions.Windows.WindowIsTranslucent {
 			result.SetTranslucentBackground()
 		}
 
-		if options.Windows.DisableWindowIcon {
+		if appoptions.Windows.DisableWindowIcon {
 			result.DisableIcon()
 		}
 	}
@@ -78,40 +78,13 @@ func NewWindow(parent winc.Controller, options *options.App) *Window {
 
 	result.SetFont(winc.DefaultFont)
 
-	if options.Menu != nil {
-		result.SetApplicationMenu(options.Menu)
+	if appoptions.Menu != nil {
+		result.SetApplicationMenu(appoptions.Menu)
 	}
 
 	return result
 }
 
 func (w *Window) Run() int {
-	var m w32.MSG
-
-	for w32.GetMessage(&m, 0, 0, 0) != 0 {
-		if m.Message == w32.WM_APP {
-			// Credit: https://github.com/jchv/go-webview2
-			w.m.Lock()
-			q := append([]func(){}, w.dispatchq...)
-			w.dispatchq = []func(){}
-			w.m.Unlock()
-			for _, v := range q {
-				v()
-			}
-		}
-		if !w.PreTranslateMessage(&m) {
-			w32.TranslateMessage(&m)
-			w32.DispatchMessage(&m)
-		}
-	}
-
-	w32.GdiplusShutdown()
-	return int(m.WParam)
-}
-
-func (w *Window) Dispatch(f func()) {
-	w.m.Lock()
-	w.dispatchq = append(w.dispatchq, f)
-	w.m.Unlock()
-	w32.PostMainThreadMessage(w32.WM_APP, 0, 0)
+	return winc.RunMainLoop()
 }

v2/internal/frontend/devserver/devserver.go

@@ -10,7 +10,6 @@ import (
 	"fmt"
 	"io/fs"
 	"log"
-	"path/filepath"
 	"strings"
 	"sync"
 	"time"
@@ -50,6 +49,11 @@ func (d *DevWebServer) WindowReload() {
 func (d *DevWebServer) Run(ctx context.Context) error {
 	d.ctx = ctx
 
+	assetdir, _ := ctx.Value("assetdir").(string)
+	d.server.Get("/wails/assetdir", func(fctx *fiber.Ctx) error {
+		return fctx.SendString(assetdir)
+	})
+
 	d.server.Get("/wails/reload", func(fctx *fiber.Ctx) error {
 		d.WindowReload()
 		d.desktopFrontend.WindowReload()
@@ -100,25 +104,14 @@ func (d *DevWebServer) Run(ctx context.Context) error {
 	_devServerURL := ctx.Value("devserverurl")
 	if _devServerURL == "http://localhost:34115" {
 		// Setup internal dev server
-		_assetdir := ctx.Value("assetdir")
-		if _assetdir == nil {
-			return fmt.Errorf("no assetdir provided")
+		bindingsJSON, err := d.appBindings.ToJSON()
+		if err != nil {
+			log.Fatal(err)
 		}
-		if _assetdir != nil {
-			assetdir := _assetdir.(string)
-			bindingsJSON, err := d.appBindings.ToJSON()
-			if err != nil {
-				log.Fatal(err)
-			}
-			d.assetServer, err = assetserver.NewBrowserAssetServer(assetdir, bindingsJSON, d.appoptions)
-			if err != nil {
-				log.Fatal(err)
-			}
-			absdir, err := filepath.Abs(assetdir)
-			if err != nil {
-				return err
-			}
-			d.LogDebug("Serving assets from: %s", absdir)
+
+		d.assetServer, err = assetserver.NewBrowserAssetServer(ctx, d.appoptions.Assets, bindingsJSON)
+		if err != nil {
+			log.Fatal(err)
 		}
 
 		d.server.Get("*", d.loadAsset)

v2/internal/frontend/frontend.go

@@ -19,8 +19,6 @@ type OpenDialogOptions struct {
 	DefaultFilename            string
 	Title                      string
 	Filters                    []FileFilter
-	AllowFiles                 bool
-	AllowDirectories           bool
 	ShowHiddenFiles            bool
 	CanCreateDirectories       bool
 	ResolvesAliases            bool

v2/internal/frontend/runtime/desktop/ipc.js

@@ -23,9 +23,9 @@ The electron alternative for Go
 		return obj;
 	};
 	let windows = _deeptest(["chrome", "webview", "postMessage"]);
-	let mac = _deeptest(["webkit", "messageHandlers", "external", "postMessage"]);
+	let mac_linux = _deeptest(["webkit", "messageHandlers", "external", "postMessage"]);
 
-	if (!windows && !mac) {
+	if (!windows && !mac_linux) {
 		console.error("Unsupported Platform");
 		return;
 	}
@@ -33,7 +33,7 @@ The electron alternative for Go
 	if (windows) {
 		window.WailsInvoke = (message) => window.chrome.webview.postMessage(message);
 	}
-	if (mac) {
+	if (mac_linux) {
 		window.WailsInvoke = (message) => window.webkit.messageHandlers.external.postMessage(message);
 	}
 })();

v2/internal/frontend/runtime/desktop/main.js

@@ -43,6 +43,8 @@ window.wails = {
     flags: {
         disableScrollbarDrag: false,
         disableWailsDefaultContextMenu: false,
+        enableResize: false,
+        defaultCursor: null
     }
 };
 
@@ -60,6 +62,15 @@ if (ENV === 0) {
 // Setup drag handler
 // Based on code from: https://github.com/patr0nus/DeskGap
 window.addEventListener('mousedown', (e) => {
+
+    // Check for resizing
+    if (window.wails.flags.resizeEdge) {
+        window.WailsInvoke("resize:" + window.wails.flags.resizeEdge);
+        e.preventDefault();
+        return;
+    }
+
+    // Check for dragging
     let currentElement = e.target;
     while (currentElement != null) {
         if (currentElement.hasAttribute('data-wails-no-drag')) {
@@ -79,6 +90,40 @@ window.addEventListener('mousedown', (e) => {
     }
 });
 
+function setResize(cursor) {
+    document.body.style.cursor = cursor || window.wails.flags.defaultCursor;
+    window.wails.flags.resizeEdge = cursor;
+}
+
+window.addEventListener('mousemove', function (e) {
+    if (!window.wails.flags.enableResize) {
+        return;
+    }
+    if (window.wails.flags.defaultCursor == null) {
+        window.wails.flags.defaultCursor = document.body.style.cursor;
+    }
+    if (window.outerWidth - e.clientX < 16 && window.outerHeight - e.clientY < 16) {
+        document.body.style.cursor = "se-resize";
+    }
+    let rightBorder = window.outerWidth - e.clientX < 16;
+    let leftBorder = e.clientX < 16;
+    let topBorder = e.clientY < 16;
+    let bottomBorder = window.outerHeight - e.clientY < 16;
+
+    // If we aren't on an edge, but were, reset the cursor to default
+    if (!leftBorder && !rightBorder && !topBorder && !bottomBorder && window.wails.flags.resizeEdge !== undefined) {
+        setResize();
+    } else if (rightBorder && bottomBorder) setResize("se-resize");
+    else if (leftBorder && bottomBorder) setResize("sw-resize");
+    else if (leftBorder && topBorder) setResize("nw-resize");
+    else if (topBorder && rightBorder) setResize("ne-resize");
+    else if (leftBorder) setResize("w-resize");
+    else if (topBorder) setResize("n-resize");
+    else if (bottomBorder) setResize("s-resize");
+    else if (rightBorder) setResize("e-resize");
+
+});
+
 // Setup context menu hook
 window.addEventListener('contextmenu', function (e) {
     if (window.wails.flags.disableWailsDefaultContextMenu) {

v2/internal/frontend/runtime/dev/main.js

@@ -14,14 +14,17 @@ import Overlay from "./Overlay.svelte";
 import {hideOverlay, showOverlay} from "./store";
 
 let components = {};
-window.ipcCallbacks = [];
-window.ipcCallbackNames = [];
 
-window.awaitIPC = (name, callback) => {
-    if (!window.ipcCallbacks) return callback;
-    log("Queuing '" + name + "' for execution once ipc ready.");
-    window.ipcCallbackNames.push(name);
-    window.ipcCallbacks.push(callback);
+let wailsInvokeInternal = null;
+let messageQueue = [];
+
+window.WailsInvoke = (message) => {
+    if (!wailsInvokeInternal) {
+        console.log("Queueing: " + message);
+        messageQueue.push(message);
+        return;
+    }
+    wailsInvokeInternal(message);
 };
 
 window.addEventListener('DOMContentLoaded', () => {
@@ -47,15 +50,14 @@ window.onbeforeunload = function () {
 connect();
 
 function setupIPCBridge() {
-    window.WailsInvoke = (message) => {
+    wailsInvokeInternal = (message) => {
         websocket.send(message);
     };
-    for (let i = 0; i < window.ipcCallbacks.length; i++) {
-        log("Executing JS: " + window.ipcCallbackNames[i]);
-        window.ipcCallbacks[i]();
+    for (let i = 0; i < messageQueue.length; i++) {
+        console.log("sending queued message: " + messageQueue[i]);
+        window.WailsInvoke(messageQueue[i]);
     }
-    delete window.ipcCallbacks;
-    delete window.ipcCallbackNames;
+    messageQueue = [];
 }
 
 // Handles incoming websocket connections

v2/internal/frontend/runtime/dev/package.json

@@ -11,8 +11,8 @@
   "license": "ISC",
   "devDependencies": {
     "esbuild": "^0.12.17",
+    "esbuild-svelte": "^0.5.6",
     "npm-run-all": "^4.1.5",
-    "svelte": "^3.42.2",
-    "esbuild-svelte": "^0.5.6"
+    "svelte": "^3.42.2"
   }
 }

v2/internal/frontend/runtime/ipc.go

@@ -1,5 +1,3 @@
-//go:build darwin || windows
-
 package runtime
 
 import _ "embed"