Develop (#250)

.chglog/CHANGELOG.tpl.md

@@ -1,42 +0,0 @@
-{{ if .Versions -}}
-<a name="unreleased"></a>
-## [Unreleased]
-
-{{ if .Unreleased.CommitGroups -}}
-{{ range .Unreleased.CommitGroups -}}
-### {{ .Title }}
-{{ range .Commits -}}
-- {{ if .Scope }}**{{ .Scope }}:** {{ end }}{{ .Subject }}
-{{ end }}
-{{ end -}}
-{{ end -}}
-{{ end -}}
-
-{{ range .Versions }}
-<a name="{{ .Tag.Name }}"></a>
-## {{ if .Tag.Previous }}[{{ .Tag.Name }}]{{ else }}{{ .Tag.Name }}{{ end }} - {{ datetime "2006-01-02" .Tag.Date }}
-{{ range .CommitGroups -}}
-### {{ .Title }}
-{{ range .Commits -}}
-- {{ if .Scope }}**{{ .Scope }}:** {{ end }}{{ .Subject }}
-{{ end }}
-{{ end -}}
-
-{{- if .NoteGroups -}}
-{{ range .NoteGroups -}}
-### {{ .Title }}
-{{ range .Notes }}
-{{ .Body }}
-{{ end }}
-{{ end -}}
-{{ end -}}
-{{ end -}}
-
-{{- if .Versions }}
-[Unreleased]: {{ .Info.RepositoryURL }}/compare/{{ $latest := index .Versions 0 }}{{ $latest.Tag.Name }}...HEAD
-{{ range .Versions -}}
-{{ if .Tag.Previous -}}
-[{{ .Tag.Name }}]: {{ $.Info.RepositoryURL }}/compare/{{ .Tag.Previous.Name }}...{{ .Tag.Name }}
-{{ end -}}
-{{ end -}}
-{{ end -}}

.chglog/config.yml

@@ -1,27 +0,0 @@
-style: github
-template: CHANGELOG.tpl.md
-info:
-  title: CHANGELOG
-  repository_url: https://github.com/wailsapp/wails
-options:
-  commits:
-    # filters:
-    #   Type:
-    #     - feat
-    #     - fix
-    #     - perf
-    #     - refactor
-  commit_groups:
-    # title_maps:
-    #   feat: Features
-    #   fix: Bug Fixes
-    #   perf: Performance Improvements
-    #   refactor: Code Refactoring
-  header:
-    pattern: "^(\\w*)\\:\\s(.*)$"
-    pattern_maps:
-      - Type
-      - Subject
-  notes:
-    keywords:
-      - BREAKING CHANGE

.eslintignore

@@ -0,0 +1 @@
+runtime/assets/default.html

.eslintrc

@@ -1,7 +1,8 @@
-module.exports = {
+{
     "env": {
         "browser": true,
-        "es6": true
+        "es6": true,
+        "node": true,
     },
     "extends": "eslint:recommended",
     "parserOptions": {
@@ -26,4 +27,4 @@ module.exports = {
             "always"
         ]
     }
-};
+}

.github/stale.yml

@@ -0,0 +1,19 @@
+# Number of days of inactivity before an issue becomes stale
+daysUntilStale: 30
+# Number of days of inactivity before a stale issue is closed
+daysUntilClose: 7
+# Issues with these labels will never be considered stale
+exemptLabels:
+  - pinned
+  - security
+  - onhold
+  - inprogress
+# Label to use when marking an issue as stale
+staleLabel: wontfix
+# Comment to post when marking an issue as stale. Set to `false` to disable
+markComment: >
+  This issue has been automatically marked as stale because it has not had
+  recent activity. It will be closed if no further activity occurs. Thank you
+  for your contributions.
+# Comment to post when closing a stale issue. Set to `false` to disable
+closeComment: false

.gitignore

@@ -16,4 +16,4 @@ examples/**/example*
 cmd/wails/wails
 .DS_Store
 tmp
-dist
+node_modules/

.hound.yml

@@ -0,0 +1,6 @@
+jshint:
+  config_file: .jshintrc
+eslint:
+  enabled: true
+  config_file: .eslintrc
+  ignore_file: .eslintignore

.vscode/launch.json

@@ -4,6 +4,13 @@
   // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
   "version": "0.2.0",
   "configurations": [
+    {
+      "name": "Test cmd package",
+      "type": "go",
+      "request": "launch",
+      "mode": "test",
+      "program": "${workspaceFolder}/cmd/"
+    },
     {
       "name": "Wails Init",
       "type": "go",

CHANGELOG.md

@@ -1,3 +1,9 @@
+
+2019-07-20 **v0.17.6-pre**
+* Significant refactor of runtime 
+* Removed wailsbridge file - now a unified approach taken
+* Fixed React on Windows - Thanks [Florian Didran](https://github.com/fdidron)!
+
 2019-06-18 **v0.16.0**
 * React template FTW! - Thanks [admin_3.exe](https://github.com/bh90210)!
 * Updated contributors

CONTRIBUTORS.md

@@ -6,6 +6,7 @@ Wails is what it is because of the time and effort given by these great people.
 * [Qais Patankar](https://github.com/qaisjp)
 * [Anthony Lee](https://github.com/alee792)
 * [Adrian Lanzafame](https://github.com/lanzafame)
+* [Mattn](https://github.com/mattn)
 * [0xflotus](https://github.com/0xflotus)
 * [Michael D Henderson](https://github.com/mdhender)
 * [fred2104](https://github.com/fishfishfish2104)
@@ -13,3 +14,7 @@ Wails is what it is because of the time and effort given by these great people.
 * [Mark Stenglein](https://github.com/ocelotsloth)
 * [admin_3.exe](https://github.com/bh90210)
 * [iceleo-com](https://github.com/iceleo-com)
+* [fallendusk](https://github.com/fallendusk)
+* [Florian Didran](https://github.com/fdidron)
+* [Nikolai Zimmermann](https://github.com/Chronophylos)
+* [Toyam Cox](https://github.com/Vaelatern)

README.md

@@ -47,19 +47,41 @@ Make sure you have the xcode command line tools installed. This can be done by r
 
 ### Linux
 
-#### Ubuntu 18.04, Debian 9
+#### Debian/Ubuntu
 
-`sudo apt install pkg-config build-essential libgtk-3-dev libwebkit2gtk-4.0-dev`
+`sudo apt install libgtk-3-dev libwebkit2gtk-4.0-dev`
+
+_Debian: 8, 9, 10_
+
+_Ubuntu: 16.04, 18.04, 19.04_
+
+_Also succesfully tested on: Zorin 15, Parrot 4.7, Linuxmint 19, Elementary 5, Kali, Neon_
 
 #### Arch Linux
 
 `sudo pacman -S webkit2gtk gtk3`
 
-#### Red Hat Based Distros
+_Also succesfully test on: Manjaro & ArcoLinux_
 
-`sudo yum install webkit2gtk-devel gtk3-devel`
+#### Centos
 
-Note: If you have successfully installed these dependencies on a different flavour of Linux, please consider submitting a PR.
+`sudo yum install webkitgtk3-devel gtk3-devel`
+
+_CentOS 6, 7_
+
+#### Fedora
+
+`sudo yum install webkit2gtk3-devel gtk3-devel`
+
+_Fedora 29, 30_
+
+#### VoidLinux & VoidLinux-musl
+
+`xbps-install gtk+3-devel webkit2gtk-devel`
+
+#### Gentoo
+
+`sudo emerge gtk+:3 webkit-gtk`
 
 ### Windows
 

app.go

@@ -2,6 +2,12 @@ package wails
 
 import (
 	"github.com/wailsapp/wails/cmd"
+	"github.com/wailsapp/wails/lib/binding"
+	"github.com/wailsapp/wails/lib/event"
+	"github.com/wailsapp/wails/lib/interfaces"
+	"github.com/wailsapp/wails/lib/ipc"
+	"github.com/wailsapp/wails/lib/logger"
+	"github.com/wailsapp/wails/lib/renderer"
 )
 
 // -------------------------------- Compile time Flags ------------------------------
@@ -15,13 +21,13 @@ var BuildMode = cmd.BuildModeProd
 type App struct {
 	config         *AppConfig                // The Application configuration object
 	cli            *cmd.Cli                  // In debug mode, we have a cli
-	renderer       Renderer        // The renderer is what we will render the app to
+	renderer       interfaces.Renderer       // The renderer is what we will render the app to
 	logLevel       string                    // The log level of the app
-	ipc            *ipcManager     // Handles the IPC calls
+	ipc            interfaces.IPCManager     // Handles the IPC calls
-	log            *CustomLogger   // Logger
+	log            *logger.CustomLogger      // Logger
-	bindingManager *bindingManager // Handles binding of Go code to renderer
+	bindingManager interfaces.BindingManager // Handles binding of Go code to renderer
-	eventManager   *eventManager   // Handles all the events
+	eventManager   interfaces.EventManager   // Handles all the events
-	runtime        *Runtime        // The runtime object for registered structs
+	runtime        interfaces.Runtime        // The runtime object for registered structs
 }
 
 // CreateApp creates the application window with the given configuration
@@ -34,14 +40,14 @@ func CreateApp(optionalConfig ...*AppConfig) *App {
 
 	result := &App{
 		logLevel:       "info",
-		renderer:       &webViewRenderer{},
+		renderer:       renderer.NewWebView(),
-		ipc:            newIPCManager(),
+		ipc:            ipc.NewManager(),
-		bindingManager: newBindingManager(),
+		bindingManager: binding.NewManager(),
-		eventManager:   newEventManager(),
+		eventManager:   event.NewManager(),
-		log:            newCustomLogger("App"),
+		log:            logger.NewCustomLogger("App"),
 	}
 
-	appconfig, err := newAppConfig(userConfig)
+	appconfig, err := newConfig(userConfig)
 	if err != nil {
 		result.log.Fatalf("Cannot use custom HTML: %s", err.Error())
 	}
@@ -75,14 +81,14 @@ func (a *App) Run() error {
 func (a *App) start() error {
 
 	// Set the log level
-	setLogLevel(a.logLevel)
+	logger.SetLogLevel(a.logLevel)
 
 	// Log starup
 	a.log.Info("Starting")
 
-	// Check if we are to run in headless mode
+	// Check if we are to run in bridge mode
 	if BuildMode == cmd.BuildModeBridge {
-		a.renderer = &Headless{}
+		a.renderer = &renderer.Bridge{}
 	}
 
 	// Initialise the renderer
@@ -92,16 +98,16 @@ func (a *App) start() error {
 	}
 
 	// Start event manager and give it our renderer
-	a.eventManager.start(a.renderer)
+	a.eventManager.Start(a.renderer)
 
 	// Start the IPC Manager and give it the event manager and binding manager
-	a.ipc.start(a.eventManager, a.bindingManager)
+	a.ipc.Start(a.eventManager, a.bindingManager)
 
 	// Create the runtime
-	a.runtime = newRuntime(a.eventManager, a.renderer)
+	a.runtime = NewRuntime(a.eventManager, a.renderer)
 
 	// Start binding manager and give it our renderer
-	err = a.bindingManager.start(a.renderer, a.runtime)
+	err = a.bindingManager.Start(a.renderer, a.runtime)
 	if err != nil {
 		return err
 	}
@@ -113,5 +119,5 @@ func (a *App) start() error {
 // Bind allows the user to bind the given object
 // with the application
 func (a *App) Bind(object interface{}) {
-	a.bindingManager.bind(object)
+	a.bindingManager.Bind(object)
 }

app_config.go

@@ -1,97 +0,0 @@
-package wails
-
-import (
-	"strings"
-
-	"github.com/dchest/htmlmin"
-	"github.com/leaanthony/mewn"
-)
-
-// AppConfig is the configuration structure used when creating a Wails App object
-type AppConfig struct {
-	Width, Height    int
-	Title            string
-	defaultHTML      string
-	HTML             string
-	JS               string
-	CSS              string
-	Colour           string
-	Resizable        bool
-	DisableInspector bool
-	isHTMLFragment   bool
-}
-
-func (a *AppConfig) merge(in *AppConfig) error {
-	if in.CSS != "" {
-		a.CSS = in.CSS
-	}
-	if in.Title != "" {
-		a.Title = in.Title
-	}
-	if in.HTML != "" {
-		minified, err := htmlmin.Minify([]byte(in.HTML), &htmlmin.Options{
-			MinifyScripts: true,
-		})
-		if err != nil {
-			return err
-		}
-		inlineHTML := string(minified)
-		inlineHTML = strings.Replace(inlineHTML, "'", "\\'", -1)
-		inlineHTML = strings.Replace(inlineHTML, "\n", " ", -1)
-		a.HTML = strings.TrimSpace(inlineHTML)
-
-		// Deduce whether this is a full html page or a fragment
-		// The document is determined to be a fragment if an HTML
-		// tag exists and is located before the first div tag
-		HTMLTagIndex := strings.Index(a.HTML, "<html")
-		DivTagIndex := strings.Index(a.HTML, "<div")
-
-		if HTMLTagIndex == -1 {
-			a.isHTMLFragment = true
-		} else {
-			if DivTagIndex < HTMLTagIndex {
-				a.isHTMLFragment = true
-			}
-		}
-	}
-
-	if in.Colour != "" {
-		a.Colour = in.Colour
-	}
-
-	if in.JS != "" {
-		a.JS = in.JS
-	}
-
-	if in.Width != 0 {
-		a.Width = in.Width
-	}
-	if in.Height != 0 {
-		a.Height = in.Height
-	}
-	a.Resizable = in.Resizable
-	a.DisableInspector = in.DisableInspector
-
-	return nil
-}
-
-// Creates the default configuration
-func newAppConfig(userConfig *AppConfig) (*AppConfig, error) {
-	result := &AppConfig{
-		Width:     800,
-		Height:    600,
-		Resizable: true,
-		Title:     "My Wails App",
-		Colour:    "#FFF", // White by default
-		HTML:      mewn.String("./wailsruntimeassets/default/default.html"),
-	}
-
-	if userConfig != nil {
-		err := result.merge(userConfig)
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	return result, nil
-}

azure-pipelines.yaml

@@ -0,0 +1,138 @@
+# avoid double trigger by applying some rules
+# start a pipeline when push to 'master' branch 
+trigger:
+- master
+# or when pull request on 'develop' branch
+pr:
+- develop
+
+# for now there is only one stage 'Build'
+# in the future we could use multistage strategy for releases
+stages:
+- stage: Build
+
+  # there are 3 jobs
+  # one for each os
+  jobs:
+  - deployment: Linux
+    displayName: Lin
+    variables:
+      GOPATH: '$(Agent.BuildDirectory)/gopath' # Go workspace path
+      GOROOT: '$(Agent.BuildDirectory)/go' # Go installation path
+      GOBIN:  '$(GOPATH)/bin' # Go binaries path
+      GOMODULE: 'on'
+      modulePath: '$(Agent.BuildDirectory)/wails' # Path to the module's code
+    pool:
+      vmImage: 'Ubuntu-16.04'
+    environment: 'linux-dev'
+    strategy:
+      runOnce:
+        deploy:
+          steps:
+          - checkout: self  # self represents the repo where the initial Pipelines YAML file was found
+            clean: true  # whether to fetch clean each time
+            path: wails  # path to check out source code, relative to the agent's build directory (e.g. \_work\1)
+            # go version 1.12.7
+          - script: |
+              wget "https://storage.googleapis.com/golang/go1.12.7.linux-amd64.tar.gz" --output-document "$(Agent.BuildDirectory)/go1.12.7.tar.gz"
+              tar -C '$(Agent.BuildDirectory)' -xzf "$(Agent.BuildDirectory)/go1.12.7.tar.gz"
+            displayName: 'Install Go 1.12.7 Linux'
+          - script: |
+              mkdir -p '$(GOBIN)'
+              mkdir -p '$(GOPATH)/pkg'
+              mkdir -p '$(GOROOT)'
+              shopt -s extglob
+              shopt -s dotglob
+              echo '##vso[task.prependpath]$(GOBIN)'
+              echo '##vso[task.prependpath]$(GOROOT)/bin'
+            displayName: 'Set up the Go workspace'
+          - script: |
+              go version
+              go get -v -d ./...
+              cd cmd/wails
+              go install
+            workingDirectory: '$(modulePath)'
+            displayName: 'Get dependencies, then build'
+          - script: |
+              wails version
+            workingDirectory: '$(modulePath)'
+            displayName: 'Check we have output'
+
+  - deployment: Mac
+    displayName: Mac
+    variables:
+      GOPATH: '$(Agent.BuildDirectory)/gopath' # Go workspace path
+      GOROOT: '$(Agent.BuildDirectory)/go' # Go installation path
+      GOBIN:  '$(GOPATH)/bin' # Go binaries path
+      GOMODULE: 'on'
+      modulePath: '$(Agent.BuildDirectory)/wails' # Path to the module's code
+    pool:
+      vmImage: 'macOS-10.14'
+    environment: 'mac-dev'
+    strategy:
+      runOnce:
+        deploy:
+          steps:
+          - checkout: self  # self represents the repo where the initial Pipelines YAML file was found
+            clean: true  # whether to fetch clean each time
+            path: wails  # path to check out source code, relative to the agent's build directory (e.g. \_work\1)
+          # go version 1.12.7
+          - script: |
+              wget "https://storage.googleapis.com/golang/go1.12.7.darwin-amd64.tar.gz" --output-document "$(Agent.BuildDirectory)/go1.12.7.tar.gz"
+              tar -C '$(Agent.BuildDirectory)' -xzf "$(Agent.BuildDirectory)/go1.12.7.tar.gz"
+            displayName: 'Install Go 1.12.7 Linux'
+          - script: |
+              mkdir -p '$(GOBIN)'
+              mkdir -p '$(GOPATH)/pkg'
+              mkdir -p '$(GOROOT)'
+              shopt -s extglob
+              shopt -s dotglob
+              echo '##vso[task.prependpath]$(GOBIN)'
+              echo '##vso[task.prependpath]$(GOROOT)/bin'
+            displayName: 'Set up the Go workspace'
+          - script: |
+              go version
+              go get -v -d ./...
+              cd cmd/wails
+              go install
+            workingDirectory: '$(modulePath)'
+            displayName: 'Get dependencies, then build'
+          - script: |
+              wails version
+            workingDirectory: '$(modulePath)'
+            displayName: 'Check we have output'
+
+  - deployment: Win
+    displayName: Win
+    variables:
+      GOMODULE: 'on'
+      modulePath: '$(Agent.BuildDirectory)/wails' # Path to the module's code
+    pool:
+      vmImage: 'windows-2019'
+    environment: 'win-dev'
+    strategy:
+      runOnce:
+        deploy:
+          steps:
+          - checkout: self  # self represents the repo where the initial Pipelines YAML file was found
+            clean: true  # whether to fetch clean each time
+            path: wails  # path to check out source code, relative to the agent's build directory (e.g. \_work\1)
+          # Go tool installer
+          # Find in cache or download a specific version of Go and add it to the PATH
+          - task: GoTool@0
+            inputs:
+              version: '1.12.7' 
+              goPath: '$(Agent.BuildDirectory)/go'
+              goBin: '$(Agent.BuildDirectory)/go/bin'
+            displayName: 'Set up the Go workspace'
+          - script: |
+              go version
+              go get -v -d ./...
+              cd cmd/wails
+              go install
+            workingDirectory: '$(modulePath)'
+            displayName: 'Get dependencies, then build'
+          - script: |
+              wails version
+            workingDirectory: '$(Agent.BuildDirectory)/go/bin'
+            displayName: 'Check we have output'

cli.go

@@ -11,10 +11,9 @@ func (app *App) setupCli() *cmd.Cli {
 	result := cmd.NewCli(app.config.Title, "Debug build")
 	result.Version(cmd.Version)
 
-	// Setup cli to handle loglevel and headless flags
+	// Setup cli to handle loglevel
 	result.
 		StringFlag("loglevel", "Sets the log level [debug|info|error|panic|fatal]. Default debug", &app.logLevel).
-		// BoolFlag("headless", "Runs the app in headless mode", &app.headless).
 		Action(app.start)
 
 	// Banner

cmd/github.go

@@ -18,7 +18,7 @@ func NewGitHubHelper() *GitHubHelper {
 }
 
 // GetVersionTags gets the list of tags on the Wails repo
-// It retuns a list of sorted tags in descending order
+// It returns a list of sorted tags in descending order
 func (g *GitHubHelper) GetVersionTags() ([]*SemanticVersion, error) {
 
 	result := []*SemanticVersion{}

cmd/helpers.go

@@ -9,7 +9,7 @@ import (
 	"runtime"
 	"time"
 
-	mewn "github.com/leaanthony/mewn"
+	"github.com/leaanthony/mewn"
 	"github.com/leaanthony/slicer"
 	"github.com/leaanthony/spinner"
 )
@@ -249,8 +249,8 @@ func InstallFrontendDeps(projectDir string, projectOptions *ProjectOptions, forc
 		ioutil.WriteFile(md5sumFile, []byte(packageJSONMD5), 0644)
 	}
 
-	// Install the bridge library
+	// Install the runtime
-	err = InstallBridge(caller, projectDir, projectOptions)
+	err = InstallRuntime(caller, projectDir, projectOptions)
 	if err != nil {
 		return err
 	}
@@ -263,22 +263,29 @@ func InstallFrontendDeps(projectDir string, projectOptions *ProjectOptions, forc
 	return nil
 }
 
-// InstallBridge installs the relevant bridge javascript library
+// InstallRuntime installs the correct runtime for the type of build
-func InstallBridge(caller string, projectDir string, projectOptions *ProjectOptions) error {
+func InstallRuntime(caller string, projectDir string, projectOptions *ProjectOptions) error {
-	bridgeFile := "wailsbridge.prod.js"
+	if caller == "build" {
-	if caller == "serve" {
+		return InstallProdRuntime(projectDir, projectOptions)
-		bridgeFile = "wailsbridge.js"
 	}
 
-	// Copy bridge to project
+	return InstallBridge(projectDir, projectOptions)
-	bridgeAssets := mewn.Group("../wailsruntimeassets/bridge/")
+}
-	bridgeFileData := bridgeAssets.Bytes(bridgeFile)
+
-	bridgeFileTarget := filepath.Join(projectDir, projectOptions.FrontEnd.Dir, projectOptions.FrontEnd.Bridge, "wailsbridge.js")
+// InstallBridge installs the relevant bridge javascript library
-	err := fs.CreateFile(bridgeFileTarget, bridgeFileData)
+func InstallBridge(projectDir string, projectOptions *ProjectOptions) error {
-	if err != nil {
+	bridgeFileData := mewn.String("../runtime/assets/bridge.js")
+	bridgeFileTarget := filepath.Join(projectDir, projectOptions.FrontEnd.Dir, "node_modules", "@wailsapp", "runtime", "init.js")
+	err := fs.CreateFile(bridgeFileTarget, []byte(bridgeFileData))
 	return err
 }
-	return nil
+
+// InstallProdRuntime installs the production runtime
+func InstallProdRuntime(projectDir string, projectOptions *ProjectOptions) error {
+	prodInit := mewn.String("../runtime/js/runtime/init.js")
+	bridgeFileTarget := filepath.Join(projectDir, projectOptions.FrontEnd.Dir, "node_modules", "@wailsapp", "runtime", "init.js")
+	err := fs.CreateFile(bridgeFileTarget, []byte(prodInit))
+	return err
 }
 
 // ServeProject attempts to serve up the current project so that it may be connected to

cmd/linux.go

@@ -17,74 +17,72 @@ type LinuxDistribution int
 const (
 	// Unknown is the catch-all distro
 	Unknown LinuxDistribution = iota
+	// Debian distribution
+	Debian
 	// Ubuntu distribution
 	Ubuntu
 	// Arch linux distribution
 	Arch
-	// RedHat linux distribution
+	// CentOS linux distribution
-	RedHat
+	CentOS
-	// Debian distribution
+	// Fedora linux distribution
-	Debian
+	Fedora
+	// Gentoo distribution
+	Gentoo
+	// Zorin distribution
+	Zorin
+	// Parrot distribution
+	Parrot
+	// Linuxmint distribution
+	Linuxmint
+	// VoidLinux distribution
+	VoidLinux
+	// Elementary distribution
+	Elementary
+	// Kali distribution
+	Kali
+	// Neon distribution
+	Neon
+	// Manjaro distribution
+	Manjaro
 )
 
 // DistroInfo contains all the information relating to a linux distribution
 type DistroInfo struct {
 	Distribution LinuxDistribution
+	Name         string
+	ID           string
 	Description  string
 	Release      string
-	Codename      string
-	DistributorID string
-	DiscoveredBy  string
 }
 
 // GetLinuxDistroInfo returns information about the running linux distribution
 func GetLinuxDistroInfo() *DistroInfo {
-	result := &DistroInfo{Distribution: Unknown}
+	result := &DistroInfo{
-	program := NewProgramHelper()
+		Distribution: Unknown,
-	// Does lsb_release exist?
+		ID:           "unknown",
-
+		Name:         "Unknown",
-	lsbRelease := program.FindProgram("lsb_release")
+	}
-	if lsbRelease != nil {
+	_, err := os.Stat("/etc/os-release")
-		stdout, _, _, err := lsbRelease.Run("-a")
+	if !os.IsNotExist(err) {
-		if err != nil {
+		osRelease, _ := ioutil.ReadFile("/etc/os-release")
+		result = parseOsRelease(string(osRelease))
+	}
 	return result
 }
-		result.DiscoveredBy = "lsb"
+
-		for _, line := range strings.Split(stdout, "\n") {
+// parseOsRelease parses the given os-release data and returns
-			if strings.Contains(line, ":") {
+// a DistroInfo struct with the details
-				// Iterate lines a
+func parseOsRelease(osRelease string) *DistroInfo {
-				details := strings.Split(line, ":")
+	result := &DistroInfo{Distribution: Unknown}
-				key := strings.TrimSpace(details[0])
+
-				value := strings.TrimSpace(details[1])
-				switch key {
-				case "Distributor ID":
-					result.DistributorID = value
-					switch value {
-					case "Ubuntu":
-						result.Distribution = Ubuntu
-					case "Arch", "ManjaroLinux":
-						result.Distribution = Arch
-					case "Debian":
-						result.Distribution = Debian
-					}
-				case "Description":
-					result.Description = value
-				case "Release":
-					result.Release = value
-				case "Codename":
-					result.Codename = value
-				}
-			}
-		}
-		// check if /etc/os-release exists
-	} else if _, err := os.Stat("/etc/os-release"); !os.IsNotExist(err) {
 	// Default value
-		osName := "Unknown"
+	osID := "unknown"
+	osNAME := "Unknown"
 	version := ""
-		// read /etc/os-release
+
-		osRelease, _ := ioutil.ReadFile("/etc/os-release")
 	// Split into lines
-		lines := strings.Split(string(osRelease), "\n")
+	lines := strings.Split(osRelease, "\n")
 	// Iterate lines
 	for _, line := range lines {
 		// Split each line by the equals char
@@ -94,33 +92,69 @@ func GetLinuxDistroInfo() *DistroInfo {
 			continue
 		}
 		switch splitLine[0] {
+		case "ID":
+			osID = strings.Trim(splitLine[1], "\"")
 		case "NAME":
-				osName = strings.Trim(splitLine[1], "\"")
+			osNAME = strings.Trim(splitLine[1], "\"")
 		case "VERSION_ID":
 			version = strings.Trim(splitLine[1], "\"")
 		}
-
 	}
 	// Check distro name against list of distros
-		result.Release = version
+	switch osID {
-		result.DiscoveredBy = "os-release"
+	case "fedora":
-		switch osName {
+		result.Distribution = Fedora
-		case "Fedora":
+	case "centos":
-			result.Distribution = RedHat
+		result.Distribution = CentOS
-		case "CentOS":
+	case "arch":
-			result.Distribution = RedHat
-		case "Arch Linux":
 		result.Distribution = Arch
-		case "Debian GNU/Linux":
+	case "debian":
 		result.Distribution = Debian
+	case "ubuntu":
+		result.Distribution = Ubuntu
+	case "gentoo":
+		result.Distribution = Gentoo
+	case "zorin":
+		result.Distribution = Zorin
+	case "parrot":
+		result.Distribution = Parrot
+	case "linuxmint":
+		result.Distribution = Linuxmint
+	case "void":
+		result.Distribution = VoidLinux
+	case "elementary":
+		result.Distribution = Elementary
+	case "kali":
+		result.Distribution = Kali
+	case "neon":
+		result.Distribution = Neon
+	case "manjaro":
+		result.Distribution = Manjaro
 	default:
 		result.Distribution = Unknown
-			result.DistributorID = osName
-		}
 	}
+
+	result.Name = osNAME
+	result.ID = osID
+	result.Release = version
+
 	return result
 }
 
+// CheckPkgInstalled is all functions that use local programs to see if a package is installed
+type CheckPkgInstalled func(string) (bool, error)
+
+// EqueryInstalled uses equery to see if a package is installed
+func EqueryInstalled(packageName string) (bool, error) {
+	program := NewProgramHelper()
+	equery := program.FindProgram("equery")
+	if equery == nil {
+		return false, fmt.Errorf("cannont check dependencies: equery not found")
+	}
+	_, _, exitCode, _ := equery.Run("l", packageName)
+	return exitCode == 0, nil
+}
+
 // DpkgInstalled uses dpkg to see if a package is installed
 func DpkgInstalled(packageName string) (bool, error) {
 	program := NewProgramHelper()
@@ -143,6 +177,17 @@ func PacmanInstalled(packageName string) (bool, error) {
 	return exitCode == 0, nil
 }
 
+// XbpsInstalled uses pacman to see if a package is installed.
+func XbpsInstalled(packageName string) (bool, error) {
+	program := NewProgramHelper()
+	xbpsQuery := program.FindProgram("xbps-query")
+	if xbpsQuery == nil {
+		return false, fmt.Errorf("cannot check dependencies: xbps-query not found")
+	}
+	_, _, exitCode, _ := xbpsQuery.Run("-S", packageName)
+	return exitCode == 0, nil
+}
+
 // RpmInstalled uses rpm to see if a package is installed
 func RpmInstalled(packageName string) (bool, error) {
 	program := NewProgramHelper()
@@ -156,18 +201,18 @@ func RpmInstalled(packageName string) (bool, error) {
 
 // RequestSupportForDistribution promts the user to submit a request to support their
 // currently unsupported distribution
-func RequestSupportForDistribution(distroInfo *DistroInfo, libraryName string) error {
+func RequestSupportForDistribution(distroInfo *DistroInfo) error {
 	var logger = NewLogger()
-	defaultError := fmt.Errorf("unable to check libraries on distribution '%s'. Please ensure that the '%s' equivalent is installed", distroInfo.DistributorID, libraryName)
+	defaultError := fmt.Errorf("unable to check libraries on distribution '%s'", distroInfo.Name)
 
-	logger.Yellow("Distribution '%s' is not currently supported, but we would love to!", distroInfo.DistributorID)
+	logger.Yellow("Distribution '%s' is not currently supported, but we would love to!", distroInfo.Name)
-	q := fmt.Sprintf("Would you like to submit a request to support distribution '%s'?", distroInfo.DistributorID)
+	q := fmt.Sprintf("Would you like to submit a request to support distribution '%s'?", distroInfo.Name)
 	result := Prompt(q, "yes")
 	if strings.ToLower(result) != "yes" {
 		return defaultError
 	}
 
-	title := fmt.Sprintf("Support Distribution '%s'", distroInfo.DistributorID)
+	title := fmt.Sprintf("Support Distribution '%s'", distroInfo.Name)
 
 	var str strings.Builder
 
@@ -182,16 +227,15 @@ func RequestSupportForDistribution(distroInfo *DistroInfo, libraryName string) e
 	str.WriteString(fmt.Sprintf("| Platform      | %s |\n", runtime.GOOS))
 	str.WriteString(fmt.Sprintf("| Arch          | %s |\n", runtime.GOARCH))
 	str.WriteString(fmt.Sprintf("| GO111MODULE   | %s |\n", gomodule))
-	str.WriteString(fmt.Sprintf("| Distribution ID   | %s |\n", distroInfo.DistributorID))
+	str.WriteString(fmt.Sprintf("| Distribution ID   | %s |\n", distroInfo.ID))
+	str.WriteString(fmt.Sprintf("| Distribution Name   | %s |\n", distroInfo.Name))
 	str.WriteString(fmt.Sprintf("| Distribution Version   | %s |\n", distroInfo.Release))
-	str.WriteString(fmt.Sprintf("| Discovered by   | %s |\n", distroInfo.DiscoveredBy))
 
-	body := fmt.Sprintf("**Description**\nDistribution '%s' is currently unsupported.\n\n**Further Information**\n\n%s\n\n*Please add any extra information here, EG: libraries that are needed to make the distribution work, or commands to install them*", distroInfo.DistributorID, str.String())
+	body := fmt.Sprintf("**Description**\nDistribution '%s' is currently unsupported.\n\n**Further Information**\n\n%s\n\n*Please add any extra information here, EG: libraries that are needed to make the distribution work, or commands to install them*", distroInfo.ID, str.String())
 	fullURL := "https://github.com/wailsapp/wails/issues/new?"
 	params := "title=" + title + "&body=" + body
 
 	fmt.Println("Opening browser to file request.")
 	browser.OpenURL(fullURL + url.PathEscape(params))
 	return nil
-
 }

cmd/linux_test.go

@@ -0,0 +1,26 @@
+package cmd
+
+import "testing"
+
+func TestUbuntuDetection(t *testing.T) {
+	osrelease := `
+NAME="Ubuntu"
+VERSION="18.04.2 LTS (Bionic Beaver)"
+ID=ubuntu
+ID_LIKE=debian
+PRETTY_NAME="Ubuntu 18.04.2 LTS"
+VERSION_ID="18.04"
+HOME_URL="https://www.ubuntu.com/"
+SUPPORT_URL="https://help.ubuntu.com/"
+BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
+PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
+VERSION_CODENAME=bionic
+UBUNTU_CODENAME=bionic
+`
+
+	result := parseOsRelease(osrelease)
+	if result.Distribution != Ubuntu {
+		t.Errorf("expected 'Ubuntu' ID but got '%d'", result.Distribution)
+	}
+
+}

cmd/linuxdb.go

@@ -0,0 +1,91 @@
+package cmd
+
+import (
+	"log"
+
+	"github.com/leaanthony/mewn"
+	"gopkg.in/yaml.v3"
+)
+
+// LinuxDB is the database for linux distribution data.
+type LinuxDB struct {
+	Distributions map[string]*Distribution `yaml:"distributions"`
+}
+
+// Distribution holds the os-release ID and a map of releases.
+type Distribution struct {
+	ID       string              `yaml:"id"`
+	Releases map[string]*Release `yaml:"releases"`
+}
+
+// GetRelease attempts to return the specific Release information
+// for the given release name. If there is no specific match, the
+// default release data is returned.
+func (d *Distribution) GetRelease(version string) *Release {
+	result := d.Releases[version]
+	if result == nil {
+		result = d.Releases["default"]
+	}
+	return result
+}
+
+// Release holds the name and version of the release as given by
+// os-release. Programs is a slice of dependant programs required
+// to be present on the local installation for Wails to function.
+// Libraries is a slice of libraries that must be present for Wails
+// applications to compile.
+type Release struct {
+	Name              string          `yaml:"name"`
+	Version           string          `yaml:"version"`
+	GccVersionCommand string          `yaml:"gccversioncommand"`
+	Programs          []*Prerequisite `yaml:"programs"`
+	Libraries         []*Prerequisite `yaml:"libraries"`
+}
+
+// Prerequisite is a simple struct containing a program/library name
+// plus the distribution specific help text indicating how to install
+// it.
+type Prerequisite struct {
+	Name string `yaml:"name"`
+	Help string `yaml:"help,omitempty"`
+}
+
+// Load will load the given filename from disk and attempt to
+// import the data into the LinuxDB.
+func (l *LinuxDB) Load(filename string) error {
+	if fs.FileExists(filename) {
+		data, err := fs.LoadAsBytes(filename)
+		if err != nil {
+			return err
+		}
+		return l.ImportData(data)
+	}
+	return nil
+}
+
+// ImportData will unmarshal the given YAML formatted data
+// into the LinuxDB
+func (l *LinuxDB) ImportData(data []byte) error {
+	return yaml.Unmarshal(data, l)
+}
+
+// GetDistro returns the Distribution information for the
+// given distribution name. If the distribution is not supported,
+// nil is returned.
+func (l *LinuxDB) GetDistro(distro string) *Distribution {
+	return l.Distributions[distro]
+}
+
+// NewLinuxDB creates a new LinuxDB instance from the bundled
+// linuxdb.yaml file.
+func NewLinuxDB() *LinuxDB {
+	data := mewn.Bytes("./linuxdb.yaml")
+	result := LinuxDB{
+		Distributions: make(map[string]*Distribution),
+	}
+	err := result.ImportData(data)
+	if err != nil {
+		log.Fatal(err)
+	}
+	return &result
+}

cmd/linuxdb.yaml

@@ -0,0 +1,188 @@
+---
+distributions:
+  debian:
+    id: debian
+    releases:
+      default:
+        name: Debian
+        version: default
+        gccversioncommand: &gccdumpversion -dumpversion
+        programs: &debiandefaultprograms
+          - name: gcc
+            help: Please install with `sudo apt-get install build-essential` and try again
+          - name: pkg-config
+            help: Please install with `sudo apt-get install pkg-config` and try again
+          - name: npm
+            help: Please install with `curl -sL https://deb.nodesource.com/setup_12.x | sudo bash - && sudo apt-get install -y nodejs` and try again
+        libraries: &debiandefaultlibraries
+          - name: libgtk-3-dev
+            help: Please install with `sudo apt-get install libgtk-3-dev` and try again
+          - name: libwebkit2gtk-4.0-dev
+            help: Please install with `sudo apt-get install libwebkit2gtk-4.0-dev` and try again
+  ubuntu:
+    id: ubuntu
+    releases:
+      default:
+        version: default
+        name: Ubuntu
+        gccversioncommand: &gccdumpfullversion -dumpfullversion
+        programs: *debiandefaultprograms
+        libraries: *debiandefaultlibraries
+  kali:
+    id: kali
+    releases:
+      default:
+        version: default
+        name: Kali GNU/Linux
+        gccversioncommand: *gccdumpfullversion
+        programs: *debiandefaultprograms
+        libraries: *debiandefaultlibraries
+  parrot:
+    id: parrot
+    releases:
+      default:
+        version: default
+        name: Parrot GNU/Linux
+        gccversioncommand: *gccdumpversion
+        programs: *debiandefaultprograms
+        libraries: *debiandefaultlibraries
+  zorin:
+    id: zorin
+    releases:
+      default:
+        version: default
+        name: Zorin
+        gccversioncommand: *gccdumpversion
+        programs: *debiandefaultprograms
+        libraries: *debiandefaultlibraries
+  linuxmint:
+    id: linuxmint
+    releases:
+      default:
+        version: default
+        name: Linux Mint
+        gccversioncommand: *gccdumpversion
+        programs: *debiandefaultprograms
+        libraries: *debiandefaultlibraries
+  elementary:
+    id: elementary
+    releases:
+      default:
+        version: default
+        name: elementary OS
+        gccversioncommand: *gccdumpfullversion
+        programs: *debiandefaultprograms
+        libraries: *debiandefaultlibraries
+  neon:
+    id: neon
+    releases:
+      default:
+        version: default
+        name: KDE neon
+        gccversioncommand: *gccdumpfullversion
+        programs: *debiandefaultprograms
+        libraries: *debiandefaultlibraries
+  void:
+    id: void
+    releases:
+      default:
+        version: default
+        name: VoidLinux
+        gccversioncommand: *gccdumpversion
+        programs:
+          - name: gcc
+            help: Please install with `xbps-install base-devel` and try again
+          - name: pkg-config
+            help: Please install with `xbps-install pkg-config` and try again
+          - name: npm
+            help: Please install with `xbps-install nodejs` and try again
+        libraries:
+          - name: gtk+3-devel
+            help: Please install with `xbps-install gtk+3-devel` and try again
+          - name: webkit2gtk-devel
+            help: Please install with `xbps-install webkit2gtk-devel` and try again
+  centos:
+    id: centos
+    releases:
+      default:
+        version: default
+        name: CentOS Linux
+        gccversioncommand: *gccdumpversion
+        programs:
+          - name: gcc
+            help: Please install with `sudo yum install gcc-c++ make` and try again
+          - name: pkg-config
+            help: Please install with `sudo yum install pkgconf-pkg-config` and try again
+          - name: npm
+            help: Please install with `sudo yum install epel-release && sudo yum install nodejs` and try again
+        libraries:
+          - name: gtk3-devel
+            help: Please install with `sudo yum install gtk3-devel` and try again
+          - name: webkitgtk3-devel
+            help: Please install with `sudo yum install webkitgtk3-devel` and try again
+  fedora:
+    id: fedora
+    releases:
+      default:
+        version: default
+        name: Fedora
+        gccversioncommand: *gccdumpfullversion
+        programs:
+          - name: gcc
+            help: Please install with `sudo yum install gcc-c++ make` and try again
+          - name: pkg-config
+            help: Please install with `sudo yum install pkgconf-pkg-config` and try again
+          - name: npm
+            help: Please install `sudo yum install nodejs` and try again
+        libraries:
+          - name: gtk3-devel
+            help: Please install with `sudo yum install gtk3-devel` and try again
+          - name: webkit2gtk3-devel
+            help: Please install with `sudo yum install webkit2gtk3-devel` and try again
+  arch:
+    id: arch
+    releases:
+      default:
+        version: default
+        name: Arch Linux
+        gccversioncommand: *gccdumpversion
+        programs: &archdefaultprograms
+          - name: gcc
+            help: Please install with `sudo pacman -S gcc` and try again
+          - name: pkgconf
+            help: Please install with `sudo pacman -S pkgconf` and try again
+          - name: npm
+            help: Please install with `sudo pacman -S npm` and try again
+        libraries: &archdefaultlibraries
+          - name: gtk3
+            help: Please install with `sudo pacman -S gtk3` and try again
+          - name: webkit2gtk
+            help: Please install with `sudo pacman -S webkit2gtk` and try again
+  manjaro:
+    id: manjaro
+    releases:
+      default:
+        version: default
+        name: Manjaro Linux
+        gccversioncommand: *gccdumpversion
+        programs: *archdefaultprograms
+        libraries: *archdefaultlibraries
+  gentoo:
+    id: gentoo
+    releases:
+      default:
+        version: default
+        name: Gentoo
+        gccversioncommand: *gccdumpversion
+        programs:
+          - name: gcc
+            help: Please install using your system's package manager
+          - name: pkg-config
+            help: Please install using your system's package manager
+          - name: npm
+            help: Please install using your system's package manager
+        libraries:
+          - name: gtk+:3
+            help: Please install with `sudo emerge gtk+:3` and try again
+          - name: webkit-gtk
+            help: Please install with `sudo emerge webkit-gtk` and try again

cmd/linuxdb_test.go

@@ -0,0 +1,81 @@
+package cmd
+
+import "testing"
+
+func TestNewLinuxDB(t *testing.T) {
+	_ = NewLinuxDB()
+}
+
+func TestKnownDistro(t *testing.T) {
+	var linuxDB = NewLinuxDB()
+	result := linuxDB.GetDistro("ubuntu")
+	if result == nil {
+		t.Error("Cannot get distro 'ubuntu'")
+	}
+}
+
+func TestUnknownDistro(t *testing.T) {
+	var linuxDB = NewLinuxDB()
+	result := linuxDB.GetDistro("unknown")
+	if result != nil {
+		t.Error("Should get nil for distribution 'unknown'")
+	}
+}
+
+func TestDefaultRelease(t *testing.T) {
+	var linuxDB = NewLinuxDB()
+	result := linuxDB.GetDistro("ubuntu")
+	if result == nil {
+		t.Error("Cannot get distro 'ubuntu'")
+	}
+
+	release := result.GetRelease("default")
+	if release == nil {
+		t.Error("Cannot get release 'default' for distro 'ubuntu'")
+	}
+}
+
+func TestUnknownRelease(t *testing.T) {
+	var linuxDB = NewLinuxDB()
+	result := linuxDB.GetDistro("ubuntu")
+	if result == nil {
+		t.Error("Cannot get distro 'ubuntu'")
+	}
+
+	release := result.GetRelease("16.04")
+	if release == nil {
+		t.Error("Failed to get release 'default' for unknown release version '16.04'")
+	}
+
+	if release.Version != "default" {
+		t.Errorf("Got version '%s' instead of 'default' for unknown release version '16.04'", result.ID)
+	}
+}
+
+func TestGetPrerequisites(t *testing.T) {
+	var linuxDB = NewLinuxDB()
+	result := linuxDB.GetDistro("debian")
+	if result == nil {
+		t.Error("Cannot get distro 'debian'")
+	}
+
+	release := result.GetRelease("default")
+	if release == nil {
+		t.Error("Failed to get release 'default' for unknown release version '16.04'")
+	}
+
+	if release.Version != "default" {
+		t.Errorf("Got version '%s' instead of 'default' for unknown release version '16.04'", result.ID)
+	}
+
+	if release.Name != "Debian" {
+		t.Errorf("Got Release Name '%s' instead of 'debian' for unknown release version '16.04'", release.Name)
+	}
+
+	if len(release.Programs) != 3 {
+		t.Errorf("Expected %d programs for unknown release version '16.04'", len(release.Programs))
+	}
+	if len(release.Libraries) != 2 {
+		t.Errorf("Expected %d libraries for unknown release version '16.04'", len(release.Libraries))
+	}
+}

cmd/prerequisites.go

@@ -5,13 +5,6 @@ import (
 	"runtime"
 )
 
-// Prerequisite defines a Prerequisite!
-type Prerequisite struct {
-	Name string
-	Help string
-	Path string
-}
-
 func newPrerequisite(name, help string) *Prerequisite {
 	return &Prerequisite{Name: name, Help: help}
 }
@@ -48,16 +41,13 @@ func getRequiredProgramsOSX() *Prerequisites {
 func getRequiredProgramsLinux() *Prerequisites {
 	result := &Prerequisites{}
 	distroInfo := GetLinuxDistroInfo()
-	switch distroInfo.Distribution {
+	if distroInfo.Distribution != Unknown {
-	case Ubuntu, Debian:
+		var linuxDB = NewLinuxDB()
-		result.Add(newPrerequisite("gcc", "Please install with `sudo apt install build-essentials` and try again"))
+		distro := linuxDB.GetDistro(distroInfo.ID)
-		result.Add(newPrerequisite("pkg-config", "Please install with `sudo apt install pkg-config` and try again"))
+		release := distro.GetRelease(distroInfo.Release)
-		result.Add(newPrerequisite("npm", "Please install with `sudo snap install node --channel=12/stable --classic` and try again"))
+		for _, program := range release.Programs {
-	default:
+			result.Add(program)
-		result.Add(newPrerequisite("gcc", "Please install with your system package manager and try again"))
+		}
-		result.Add(newPrerequisite("pkg-config", "Please install with your system package manager and try again"))
-		result.Add(newPrerequisite("npm", "Please install from https://nodejs.org/en/download/ and try again"))
-
 	}
 	return result
 }
@@ -91,20 +81,15 @@ func getRequiredLibrariesOSX() (*Prerequisites, error) {
 
 func getRequiredLibrariesLinux() (*Prerequisites, error) {
 	result := &Prerequisites{}
+	// The Linux Distribution DB
 	distroInfo := GetLinuxDistroInfo()
-	switch distroInfo.Distribution {
+	if distroInfo.Distribution != Unknown {
-	case Ubuntu:
+		var linuxDB = NewLinuxDB()
-		result.Add(newPrerequisite("libgtk-3-dev", "Please install with `sudo apt install libgtk-3-dev` and try again"))
+		distro := linuxDB.GetDistro(distroInfo.ID)
-		result.Add(newPrerequisite("libwebkit2gtk-4.0-dev", "Please install with `sudo apt install libwebkit2gtk-4.0-dev` and try again"))
+		release := distro.GetRelease(distroInfo.Release)
-	case Arch:
+		for _, library := range release.Libraries {
-		result.Add(newPrerequisite("gtk3", "Please install with `sudo pacman -S gtk3` and try again"))
+			result.Add(library)
-		result.Add(newPrerequisite("webkit2gtk", "Please install with `sudo pacman -S webkit2gtk` and try again"))
+		}
-	case RedHat:
-		result.Add(newPrerequisite("gtk3-devel", "Please install with `sudo yum install gtk3-devel` and try again"))
-		result.Add(newPrerequisite("webkit2gtk3-devel", "Please install with `sudo yum install webkit2gtk3-devel` and try again"))
-	default:
-		result.Add(newPrerequisite("libgtk-3-dev", "Please install with your system package manager and try again"))
-		result.Add(newPrerequisite("libwebkit2gtk-4.0-dev", "Please install with your system package manager and try again"))
 	}
 	return result, nil
 }

cmd/program.go

@@ -117,14 +117,15 @@ func (p *ProgramHelper) RunCommandArray(args []string, dir ...string) error {
 	}
 	args = args[1:]
 	var stderr string
-	// fmt.Printf("RunCommandArray = %s %+v\n", program, args)
+	var stdout string
 	if len(dir) > 0 {
-		_, stderr, err = p.shell.RunInDirectory(dir[0], program, args...)
+		stdout, stderr, err = p.shell.RunInDirectory(dir[0], program, args...)
 	} else {
-		_, stderr, err = p.shell.Run(program, args...)
+		stdout, stderr, err = p.shell.Run(program, args...)
 	}
 	if err != nil {
 		fmt.Println(stderr)
+		fmt.Println(stdout)
 	}
 	return err
 }

cmd/project.go

@@ -112,9 +112,9 @@ func (ph *ProjectHelper) NewProjectOptions() *ProjectOptions {
 		Description: "Enter your project description",
 		Version:     "0.1.0",
 		BinaryName:  "",
-		system:      NewSystemHelper(),
+		system:      ph.system,
-		log:         NewLogger(),
+		log:         ph.log,
-		templates:   NewTemplateHelper(),
+		templates:   ph.templates,
 		Author:      &author{},
 	}
 

cmd/prompt.go

@@ -4,7 +4,6 @@ import (
 	"bufio"
 	"fmt"
 	"os"
-	"runtime"
 	"strconv"
 	"strings"
 )
@@ -20,11 +19,7 @@ func Prompt(question string, defaultValue ...string) string {
 	fmt.Printf(question + ": ")
 	reader := bufio.NewReader(os.Stdin)
 	input, _ := reader.ReadString('\n')
-	EOL := "\n"
+	input = strings.TrimSpace(input)
-	if runtime.GOOS == "windows" {
-		EOL = "\r\n"
-	}
-	input = strings.Replace(input, EOL, "", -1)
 
 	if input != "" {
 		answer = input

cmd/system.go

@@ -269,44 +269,35 @@ func CheckDependencies(logger *Logger) (bool, error) {
 		if err != nil {
 			return false, err
 		}
+
+		var libraryChecker CheckPkgInstalled
 		distroInfo := GetLinuxDistroInfo()
-		for _, library := range *requiredLibraries {
+
 		switch distroInfo.Distribution {
-			case Ubuntu, Debian:
+		case Ubuntu, Debian, Zorin, Parrot, Linuxmint, Elementary, Kali, Neon:
-				installed, err := DpkgInstalled(library.Name)
+			libraryChecker = DpkgInstalled
-				if err != nil {
+		case Arch, Manjaro:
-					return false, err
+			libraryChecker = PacmanInstalled
-				}
+		case CentOS, Fedora:
-				if !installed {
+			libraryChecker = RpmInstalled
-					errors = true
+		case Gentoo:
-					logger.Error("Library '%s' not found. %s", library.Name, library.Help)
+			libraryChecker = EqueryInstalled
-				} else {
+		case VoidLinux:
-					logger.Green("Library '%s' installed.", library.Name)
+			libraryChecker = XbpsInstalled
-				}
-			case Arch:
-				installed, err := PacmanInstalled(library.Name)
-				if err != nil {
-					return false, err
-				}
-				if !installed {
-					errors = true
-					logger.Error("Library '%s' not found. %s", library.Name, library.Help)
-				} else {
-					logger.Green("Library '%s' installed.", library.Name)
-				}
-			case RedHat:
-				installed, err := RpmInstalled(library.Name)
-				if err != nil {
-					return false, err
-				}
-				if !installed {
-					errors = true
-					logger.Error("Library '%s' not found. %s", library.Name, library.Help)
-				} else {
-					logger.Green("Library '%s' installed.", library.Name)
-				}
 		default:
-				return false, RequestSupportForDistribution(distroInfo, library.Name)
+			return false, RequestSupportForDistribution(distroInfo)
+		}
+
+		for _, library := range *requiredLibraries {
+			installed, err := libraryChecker(library.Name)
+			if err != nil {
+				return false, err
+			}
+			if !installed {
+				errors = true
+				logger.Error("Library '%s' not found. %s", library.Name, library.Help)
+			} else {
+				logger.Green("Library '%s' installed.", library.Name)
 			}
 		}
 	}

cmd/templates.go

@@ -67,7 +67,7 @@ func NewTemplateHelper() *TemplateHelper {
 	}
 }
 
-// IsValidTemplate returns true if the given tempalte name resides on disk
+// IsValidTemplate returns true if the given template name resides on disk
 func (t *TemplateHelper) IsValidTemplate(templateName string) bool {
 	pathToTemplate := filepath.Join(t.templateDir.fullPath, templateName)
 	return t.fs.DirExists(pathToTemplate)

cmd/templates/angular-template/frontend/package.json.template

@@ -21,6 +21,7 @@
     "@angular/platform-browser": "~8.0.1",
     "@angular/platform-browser-dynamic": "~8.0.1",
     "@angular/router": "~8.0.1",
+    "@wailsapp/runtime": "^1.0.0",
     "ngx-build-plus": "^8.0.3",
     "rxjs": "~6.4.0",
     "tslib": "^1.9.0",

cmd/templates/angular-template/frontend/src/main.ts

@@ -6,13 +6,13 @@ import { environment } from './environments/environment';
 
 import 'zone.js'
 
-import Bridge from './wailsbridge';
+import Wails from '@wailsapp/runtime';
 
 if (environment.production) {
   enableProdMode();
 }
 
-Bridge.Start(() => {
+Wails.Init(() => {
   platformBrowserDynamic().bootstrapModule(AppModule)
     .catch(err => console.error(err));
 });

cmd/templates/create-react-app/frontend/package.json.template

@@ -4,10 +4,12 @@
   "version": "0.1.0",
   "private": true,
   "dependencies": {
+    "core-js": "^3.1.4",
     "react": "^16.8.6",
     "react-dom": "^16.8.6",
     "wails-react-scripts": "3.0.1-2",
-    "react-modal": "3.8.1"
+    "react-modal": "3.8.1",
+    "@wailsapp/runtime": "^1.0.0"
   },
   "scripts": {
     "start": "react-scripts start",

cmd/templates/create-react-app/frontend/src/index.js

@@ -1,10 +1,11 @@
 import React from 'react';
 import ReactDOM from 'react-dom';
+import 'core-js/stable';
 import './index.css';
 import App from './App';
 
-import Bridge from "./wailsbridge";
+import Wails from '@wailsapp/runtime';
 
-Bridge.Start(() => {
+Wails.Init(() => {
   ReactDOM.render(<App />, document.getElementById('app'));
 });

cmd/templates/vuebasic/frontend/package.json.template

@@ -9,7 +9,8 @@
   },
   "dependencies": {
     "core-js": "^2.6.4",
-    "vue": "^2.5.22"
+    "vue": "^2.5.22",
+    "@wailsapp/runtime": "^1.0.0"
   },
   "devDependencies": {
     "@vue/cli-plugin-babel": "^3.4.0",

cmd/templates/vuebasic/frontend/src/main.js

@@ -1,13 +1,13 @@
-import Vue from "vue";
+import Vue from 'vue';
-import App from "./App.vue";
+import App from './App.vue';
 
 Vue.config.productionTip = false;
 Vue.config.devtools = true;
 
-import Bridge from "./wailsbridge";
+import Wails from '@wailsapp/runtime';
 
-Bridge.Start(() => {
+Wails.Init(() => {
 	new Vue({
 		render: h => h(App)
-  }).$mount("#app");
+	}).$mount('#app');
 });

cmd/templates/vuebasic/frontend/src/wailsbridge.js

@@ -1,17 +0,0 @@
-/*
-    Wails Bridge (c) 2019-present Lea Anthony
-
-    This prod version is to get around having to rewrite your code
-    for production. When doing a release build, this file will be used 
-    instead of the full version.
-*/
-
-export default {
-  // The main function
-  // Passes the main Wails object to the callback if given.
-  Start: function (callback) {
-    if (callback) {
-      window.wails.Events.On("wails:ready", callback);
-    }
-  }
-};

cmd/templates/vuetify-basic/frontend/package.json.template

@@ -12,7 +12,8 @@
     "core-js": "^2.6.4",
     "material-design-icons-iconfont": "^5.0.1",
     "vue": "^2.5.22",
-    "vuetify": "^1.5.14"
+    "vuetify": "^1.5.14",
+    "@wailsapp/runtime": "^1.0.0"
   },
   "devDependencies": {
     "@vue/cli-plugin-babel": "^3.4.0",

cmd/templates/vuetify-basic/frontend/src/main.js

@@ -1,5 +1,5 @@
 import 'babel-polyfill';
-import Vue from "vue";
+import Vue from 'vue';
 
 // Setup Vuetify
 import Vuetify from 'vuetify';
@@ -7,15 +7,15 @@ Vue.use(Vuetify);
 import 'vuetify/dist/vuetify.min.css';
 import 'material-design-icons-iconfont';
 
-import App from "./App.vue";
+import App from './App.vue';
 
 Vue.config.productionTip = false;
 Vue.config.devtools = true;
 
-import Bridge from "./wailsbridge";
+import Wails from '@wailsapp/runtime';
 
-Bridge.Start(() => {
+Wails.Init(() => {
 	new Vue({
 		render: h => h(App)
-  }).$mount("#app");
+	}).$mount('#app');
 });

cmd/version.go

@@ -1,4 +1,4 @@
 package cmd
 
 // Version - Wails version
-const Version = "v0.17.0"
+const Version = "v0.18.1"

cmd/wails/0_setup.go

@@ -1,7 +1,6 @@
 package main
 
 import (
-	"fmt"
 	"runtime"
 
 	"github.com/wailsapp/wails/cmd"
@@ -24,7 +23,7 @@ func init() {
 
 		system := cmd.NewSystemHelper()
 		err = system.Initialise()
-		if err == nil {
+		if err != nil {
 			return err
 		}
 
@@ -33,23 +32,9 @@ Create your first project by running 'wails init'.`
 		if runtime.GOOS != "windows" {
 			successMessage = "🚀 " + successMessage
 		}
-		// Platform check
-		err = platformCheck()
-		if err != nil {
-			return err
-		}
 
-		// Check we have a cgo capable environment
+		// Chrck for programs and libraries dependencies
-		logger.Yellow("Checking for prerequisites...")
+		errors, err := cmd.CheckDependencies(logger)
-		var requiredProgramErrors bool
-		requiredProgramErrors, err = checkRequiredPrograms()
-		if err != nil {
-			return err
-		}
-
-		// Linux has library deps
-		var libraryErrors bool
-		libraryErrors, err = checkLibraries()
 		if err != nil {
 			return err
 		}
@@ -60,76 +45,14 @@ Create your first project by running 'wails init'.`
 			return err
 		}
 
-		logger.White("")
-
 		// Check for errors
-		var errors = libraryErrors || requiredProgramErrors
+		// CheckDependencies() returns !errors
-		if !errors {
+		// so to get the right message in this
+		// check we have to do it in reversed
+		if errors {
 			logger.Yellow(successMessage)
 		}
 
 		return err
 	})
 }
-
-func platformCheck() error {
-	switch runtime.GOOS {
-	case "darwin":
-		logger.Yellow("Detected Platform: OSX")
-	case "windows":
-		logger.Yellow("Detected Platform: Windows")
-	case "linux":
-		logger.Yellow("Detected Platform: Linux")
-	default:
-		return fmt.Errorf("Platform %s is currently not supported", runtime.GOOS)
-	}
-	return nil
-}
-
-func checkLibraries() (errors bool, err error) {
-	if runtime.GOOS == "linux" {
-		// Check library prerequisites
-		requiredLibraries, err := cmd.GetRequiredLibraries()
-		if err != nil {
-			return false, err
-		}
-		distroInfo := cmd.GetLinuxDistroInfo()
-		for _, library := range *requiredLibraries {
-			switch distroInfo.Distribution {
-			case cmd.Ubuntu, cmd.Debian:
-				installed, err := cmd.DpkgInstalled(library.Name)
-				if err != nil {
-					return false, err
-				}
-				if !installed {
-					errors = true
-					logger.Red("Library '%s' not found. %s", library.Name, library.Help)
-				} else {
-					logger.Green("Library '%s' installed.", library.Name)
-				}
-			default:
-				return false, cmd.RequestSupportForDistribution(distroInfo, library.Name)
-			}
-		}
-	}
-	return false, nil
-}
-
-func checkRequiredPrograms() (errors bool, err error) {
-	requiredPrograms, err := cmd.GetRequiredPrograms()
-	if err != nil {
-		return true, err
-	}
-	errors = false
-	programHelper := cmd.NewProgramHelper()
-	for _, program := range *requiredPrograms {
-		bin := programHelper.FindProgram(program.Name)
-		if bin == nil {
-			errors = true
-			logger.Red("Program '%s' not found. %s", program.Name, program.Help)
-		} else {
-			logger.Green("Program '%s' found: %s", program.Name, bin.Path)
-		}
-	}
-	return
-}

cmd/wails/4_build.go

@@ -72,7 +72,16 @@ func init() {
 			if err != nil {
 				return err
 			}
+
+				// Ensure that runtime init.js is the production version
+				err = cmd.InstallProdRuntime(projectDir, projectOptions)
+				if err != nil {
+					return err
 				}
+		}
+
+	
+
 
 		// Move to project directory
 		err = os.Chdir(projectDir)

cmd/wails/6_serve.go

@@ -45,7 +45,7 @@ func init() {
 		projectDir := fs.Cwd()
 
 		// Install the bridge library
-		err = cmd.InstallBridge("serve", projectDir, projectOptions)
+		err = cmd.InstallBridge(projectDir, projectOptions)
 		if err != nil {
 			return err
 		}

cmd/wails/9_issue.go

@@ -42,12 +42,64 @@ To help you in this process, we will ask for some information, add Go/Wails deta
 			gomodule = "(Not Set)"
 		}
 
+		// get version numbers for GCC, node & npm
+		program := cmd.NewProgramHelper()
+		// string helpers
+		var gccVersion, nodeVersion, npmVersion string
+
+		// choose between OS (mac,linux,win)
+		switch runtime.GOOS {
+		case "darwin":
+			gcc := program.FindProgram("gcc")
+			if gcc != nil {
+				stdout, _, _, _ := gcc.Run("-dumpversion")
+				gccVersion = strings.TrimSpace(stdout)
+			}
+		case "linux":
+			// for linux we have to collect
+			// the distribution name
+			distroInfo := cmd.GetLinuxDistroInfo()
+			linuxDB := cmd.NewLinuxDB()
+			distro := linuxDB.GetDistro(distroInfo.ID)
+			release := distro.GetRelease(distroInfo.Release)
+			gccVersionCommand := release.GccVersionCommand
+
+			gcc := program.FindProgram("gcc")
+			if gcc != nil {
+				stdout, _, _, _ := gcc.Run(gccVersionCommand)
+				gccVersion = strings.TrimSpace(stdout)
+			}
+		case "windows":
+			gcc := program.FindProgram("gcc")
+			if gcc != nil {
+				stdout, _, _, _ := gcc.Run("-dumpversion")
+				gccVersion = strings.TrimSpace(stdout)
+			}
+		}
+
+		npm := program.FindProgram("npm")
+		if npm != nil {
+			stdout, _, _, _ := npm.Run("--version")
+			nodeVersion = stdout
+			nodeVersion = nodeVersion[:len(nodeVersion)-1]
+		}
+
+		node := program.FindProgram("node")
+		if node != nil {
+			stdout, _, _, _ := node.Run("--version")
+			npmVersion = stdout
+			npmVersion = npmVersion[:len(npmVersion)-1]
+		}
+
 		str.WriteString("\n| Name   | Value |\n| ----- | ----- |\n")
 		str.WriteString(fmt.Sprintf("| Wails Version | %s |\n", cmd.Version))
 		str.WriteString(fmt.Sprintf("| Go Version    | %s |\n", runtime.Version()))
 		str.WriteString(fmt.Sprintf("| Platform      | %s |\n", runtime.GOOS))
 		str.WriteString(fmt.Sprintf("| Arch          | %s |\n", runtime.GOARCH))
 		str.WriteString(fmt.Sprintf("| GO111MODULE   | %s |\n", gomodule))
+		str.WriteString(fmt.Sprintf("| GCC           | %s |\n", gccVersion))
+		str.WriteString(fmt.Sprintf("| Npm           | %s |\n", npmVersion))
+		str.WriteString(fmt.Sprintf("| Node          | %s |\n", nodeVersion))
 
 		fmt.Println()
 		fmt.Println("Processing template and preparing for upload.")

config.go

@@ -0,0 +1,110 @@
+package wails
+
+import "github.com/leaanthony/mewn"
+
+// AppConfig is the configuration structure used when creating a Wails App object
+type AppConfig struct {
+	Width, Height    int
+	Title            string
+	defaultHTML      string
+	HTML             string
+	JS               string
+	CSS              string
+	Colour           string
+	Resizable        bool
+	DisableInspector bool
+}
+
+// GetWidth returns the desired width
+func (a *AppConfig) GetWidth() int {
+	return a.Width
+}
+
+// GetHeight returns the desired height
+func (a *AppConfig) GetHeight() int {
+	return a.Height
+}
+
+// GetTitle returns the desired window title
+func (a *AppConfig) GetTitle() string {
+	return a.Title
+}
+
+// GetDefaultHTML returns the default HTML
+func (a *AppConfig) GetDefaultHTML() string {
+	return a.defaultHTML
+}
+
+// GetResizable returns true if the window should be resizable
+func (a *AppConfig) GetResizable() bool {
+	return a.Resizable
+}
+
+// GetDisableInspector returns true if the inspector should be disabled
+func (a *AppConfig) GetDisableInspector() bool {
+	return a.DisableInspector
+}
+
+// GetColour returns the colour
+func (a *AppConfig) GetColour() string {
+	return a.Colour
+}
+
+// GetCSS returns the user CSS
+func (a *AppConfig) GetCSS() string {
+	return a.CSS
+}
+
+// GetJS returns the user Javascript
+func (a *AppConfig) GetJS() string {
+	return a.JS
+}
+
+func (a *AppConfig) merge(in *AppConfig) error {
+	if in.CSS != "" {
+		a.CSS = in.CSS
+	}
+	if in.Title != "" {
+		a.Title = in.Title
+	}
+
+	if in.Colour != "" {
+		a.Colour = in.Colour
+	}
+
+	if in.JS != "" {
+		a.JS = in.JS
+	}
+
+	if in.Width != 0 {
+		a.Width = in.Width
+	}
+	if in.Height != 0 {
+		a.Height = in.Height
+	}
+	a.Resizable = in.Resizable
+	a.DisableInspector = in.DisableInspector
+
+	return nil
+}
+
+// Creates the default configuration
+func newConfig(userConfig *AppConfig) (*AppConfig, error) {
+	result := &AppConfig{
+		Width:     800,
+		Height:    600,
+		Resizable: true,
+		Title:     "My Wails App",
+		Colour:    "#FFF", // White by default
+		HTML:      mewn.String("./runtime/assets/default.html"),
+	}
+
+	if userConfig != nil {
+		err := result.merge(userConfig)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return result, nil
+}

go.mod

@@ -22,9 +22,9 @@ require (
 	github.com/pkg/errors v0.8.1 // indirect
 	github.com/sirupsen/logrus v1.4.1
 	github.com/stretchr/testify v1.3.0 // indirect
-	github.com/wailsapp/webview v0.2.7
 	golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529 // indirect
 	golang.org/x/net v0.0.0-20190509222800-a4d6f7feada5 // indirect
 	golang.org/x/sys v0.0.0-20190509141414-a5b02f93d862
 	gopkg.in/AlecAivazis/survey.v1 v1.8.4
+	gopkg.in/yaml.v3 v3.0.0-20190709130402-674ba3eaed22
 )

go.sum

@@ -25,7 +25,6 @@ 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 h1:mweAR1A6xJ3oS2pRaGiHgQ4OO8tzTaLawm8vnODuwDk=
 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=
@@ -41,12 +40,10 @@ github.com/leaanthony/synx v0.1.0 h1:R0lmg2w6VMb8XcotOwAe5DLyzwjLrskNkwU7LLWsyL8
 github.com/leaanthony/synx v0.1.0/go.mod h1:Iz7eybeeG8bdq640iR+CwYb8p+9EOsgMWghkSRyZcqs=
 github.com/leaanthony/wincursor v0.1.0 h1:Dsyp68QcF5cCs65AMBmxoYNEm0n8K7mMchG6a8fYxf8=
 github.com/leaanthony/wincursor v0.1.0/go.mod h1:7TVwwrzSH/2Y9gLOGH+VhA+bZhoWXBRgbGNTMk+yimE=
-github.com/mattn/go-colorable v0.0.9 h1:UVL0vNpWh04HeJXV0KLcaT7r06gOH2l4OW6ddYRUIY4=
 github.com/mattn/go-colorable v0.0.9/go.mod h1:9vuHe8Xs5qXnSaW/c/ABM9alt+Vo+STaOChaDxuIBZU=
 github.com/mattn/go-colorable v0.1.1 h1:G1f5SKeVxmagw/IyvzvtZE4Gybcc4Tr1tf7I8z0XgOg=
 github.com/mattn/go-colorable v0.1.1/go.mod h1:FuOcm+DKB9mbwrcAfNl7/TZVBZ6rcnceauSikq3lYCQ=
 github.com/mattn/go-isatty v0.0.3/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
-github.com/mattn/go-isatty v0.0.4 h1:bnP0vzxcAdeI1zdubAl5PjU6zsERjGZb7raWodagDYs=
 github.com/mattn/go-isatty v0.0.4/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
 github.com/mattn/go-isatty v0.0.5/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
 github.com/mattn/go-isatty v0.0.7 h1:UvyT9uN+3r7yLEYSlJsbQGdsaB/a0DlgWP3pql6iwOc=
@@ -71,11 +68,7 @@ github.com/stretchr/testify v1.2.1/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXf
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/wailsapp/webview v0.2.7 h1:fN5L5H9Oivg9IJPk7uaXQnjqB68Fny11ZWkIaTIZHmk=
-github.com/wailsapp/webview v0.2.7/go.mod h1:XO9HJbKWokDxUYTWQEBCYg95n/To1v7PxvanDNVf8hY=
-github.com/zserge/webview v0.0.0-20190123072648-16c93bcaeaeb/go.mod h1:a1CV8KR4Dd1eP2g+mEijGOp+HKczwdKHWyx0aPHKvo4=
 golang.org/x/crypto v0.0.0-20190123085648-057139ce5d2b/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
-golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2 h1:VklqNMn3ovrHsnt90PveolxSbWFaJdECFbxSq0Mqo2M=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529 h1:iMGN4xG0cnqj3t+zOM8wUB0BiPKHEwSxEZCvzcbZuvk=
 golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
@@ -84,10 +77,8 @@ golang.org/x/net v0.0.0-20190509222800-a4d6f7feada5 h1:6M3SDHlHHDCx2PcQw3S4KsR17
 golang.org/x/net v0.0.0-20190509222800-a4d6f7feada5/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 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 h1:pf3XwC90UUdNPYWZdFjhGBE7DUFuK3Ct1zWmZ65QN30=
 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 h1:DH4skfRX4EBpamg7iV4ZlCpblAHI6s6TDM39bFZumv8=
 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 v0.0.0-20190509141414-a5b02f93d862 h1:rM0ROo5vb9AdYJi1110yjWGMej9ITfKddS89P3Fkhug=
@@ -95,3 +86,7 @@ golang.org/x/sys v0.0.0-20190509141414-a5b02f93d862/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 gopkg.in/AlecAivazis/survey.v1 v1.8.4 h1:10xXXN3wgIhPheb5NI58zFgZv32Ana7P3Tl4shW+0Qc=
 gopkg.in/AlecAivazis/survey.v1 v1.8.4/go.mod h1:iBNOmqKz/NUbZx3bA+4hAGLRC7fSK7tgtVDT4tB22XA=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20190709130402-674ba3eaed22 h1:0efs3hwEZhFKsCoP8l6dDB1AZWMgnEl3yWXWRZTOaEA=
+gopkg.in/yaml.v3 v3.0.0-20190709130402-674ba3eaed22/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

lib/binding/function.go

@@ -1,4 +1,4 @@
-package wails
+package binding
 
 import (
 	"bytes"
@@ -6,6 +6,8 @@ import (
 	"fmt"
 	"reflect"
 	"runtime"
+
+	"github.com/wailsapp/wails/lib/logger"
 )
 
 type boundFunction struct {
@@ -14,7 +16,7 @@ type boundFunction struct {
 	functionType       reflect.Type
 	inputs             []reflect.Type
 	returnTypes        []reflect.Type
-	log                *CustomLogger
+	log                *logger.CustomLogger
 	hasErrorReturnType bool
 }
 
@@ -30,7 +32,7 @@ func newBoundFunction(object interface{}) (*boundFunction, error) {
 		fullName:     name,
 		function:     objectValue,
 		functionType: objectType,
-		log:          newCustomLogger(name),
+		log:          logger.NewCustomLogger(name),
 	}
 
 	err := result.processParameters()
@@ -55,7 +57,7 @@ func (b *boundFunction) processParameters() error {
 			b.inputs[index] = param
 			typ := param
 			index := index
-			b.log.DebugFields("Input param", Fields{
+			b.log.DebugFields("Input param", logger.Fields{
 				"index": index,
 				"name":  name,
 				"kind":  kind,

lib/binding/internal.go

@@ -1,21 +1,27 @@
-package wails
+package binding
 
-import "strings"
+import (
-import "fmt"
+	"fmt"
+	"strings"
+
+	"github.com/wailsapp/wails/lib/logger"
+	"github.com/wailsapp/wails/lib/messages"
+	"github.com/wailsapp/wails/runtime"
+)
 
 type internalMethods struct {
-	log *CustomLogger
+	log     *logger.CustomLogger
-	browser *RuntimeBrowser
+	browser *runtime.Browser
 }
 
 func newInternalMethods() *internalMethods {
 	return &internalMethods{
-		log: newCustomLogger("InternalCall"),
+		log:     logger.NewCustomLogger("InternalCall"),
-		browser: newRuntimeBrowser(),
+		browser: runtime.NewBrowser(),
 	}
 }
 
-func (i *internalMethods) processCall(callData *callData) (interface{}, error) {
+func (i *internalMethods) processCall(callData *messages.CallData) (interface{}, error) {
 	if !strings.HasPrefix(callData.BindingName, ".wails.") {
 		return nil, fmt.Errorf("Invalid call signature '%s'", callData.BindingName)
 	}

lib/binding/manager.go

@@ -1,47 +1,46 @@
-package wails
+package binding
 
 import (
 	"fmt"
 	"reflect"
 	"unicode"
+
+	"github.com/wailsapp/wails/lib/interfaces"
+	"github.com/wailsapp/wails/lib/logger"
+	"github.com/wailsapp/wails/lib/messages"
 )
 
-/**
+// Manager handles method binding
-
+type Manager struct {
-binding:
- Name() // Full name (package+name)
- Call(params)
-
-**/
-
-type bindingManager struct {
 	methods          map[string]*boundMethod
 	functions        map[string]*boundFunction
 	internalMethods  *internalMethods
 	initMethods      []*boundMethod
-	log              *CustomLogger
+	log              *logger.CustomLogger
-	renderer         Renderer
+	renderer         interfaces.Renderer
-	runtime          *Runtime // The runtime object to pass to bound structs
+	runtime          interfaces.Runtime // The runtime object to pass to bound structs
 	objectsToBind    []interface{}
 	bindPackageNames bool // Package name should be considered when binding
 }
 
-func newBindingManager() *bindingManager {
+// NewManager creates a new Manager struct
-	result := &bindingManager{
+func NewManager() interfaces.BindingManager {
+	result := &Manager{
 		methods:         make(map[string]*boundMethod),
 		functions:       make(map[string]*boundFunction),
-		log:             newCustomLogger("Bind"),
+		log:             logger.NewCustomLogger("Bind"),
 		internalMethods: newInternalMethods(),
 	}
 	return result
 }
 
-// Sets flag to indicate package names should be considered when binding
+// BindPackageNames sets a flag to indicate package names should be considered when binding
-func (b *bindingManager) BindPackageNames() {
+func (b *Manager) BindPackageNames() {
 	b.bindPackageNames = true
 }
 
-func (b *bindingManager) start(renderer Renderer, runtime *Runtime) error {
+// Start the binding manager
+func (b *Manager) Start(renderer interfaces.Renderer, runtime interfaces.Runtime) error {
 	b.log.Info("Starting")
 	b.renderer = renderer
 	b.runtime = runtime
@@ -54,7 +53,7 @@ func (b *bindingManager) start(renderer Renderer, runtime *Runtime) error {
 	return err
 }
 
-func (b *bindingManager) initialise() error {
+func (b *Manager) initialise() error {
 
 	var err error
 	// var binding *boundMethod
@@ -92,7 +91,7 @@ func (b *bindingManager) initialise() error {
 }
 
 // bind the given struct method
-func (b *bindingManager) bindMethod(object interface{}) error {
+func (b *Manager) bindMethod(object interface{}) error {
 
 	objectType := reflect.TypeOf(object)
 	baseName := objectType.String()
@@ -142,7 +141,7 @@ func (b *bindingManager) bindMethod(object interface{}) error {
 }
 
 // bind the given function object
-func (b *bindingManager) bindFunction(object interface{}) error {
+func (b *Manager) bindFunction(object interface{}) error {
 
 	newFunction, err := newBoundFunction(object)
 	if err != nil {
@@ -159,18 +158,18 @@ func (b *bindingManager) bindFunction(object interface{}) error {
 	return nil
 }
 
-// Save the given object to be bound at start time
+// Bind saves the given object to be bound at start time
-func (b *bindingManager) bind(object interface{}) {
+func (b *Manager) Bind(object interface{}) {
 	// Store binding
 	b.objectsToBind = append(b.objectsToBind, object)
 }
 
-func (b *bindingManager) processInternalCall(callData *callData) (interface{}, error) {
+func (b *Manager) processInternalCall(callData *messages.CallData) (interface{}, error) {
 	// Strip prefix
 	return b.internalMethods.processCall(callData)
 }
 
-func (b *bindingManager) processFunctionCall(callData *callData) (interface{}, error) {
+func (b *Manager) processFunctionCall(callData *messages.CallData) (interface{}, error) {
 	// Return values
 	var result []reflect.Value
 	var err error
@@ -196,10 +195,14 @@ func (b *bindingManager) processFunctionCall(callData *callData) (interface{}, e
 			return nil, errorResult.Interface().(error)
 		}
 	}
+	// fmt.Printf("result = '%+v'\n", result)
+	if len(result) > 0 {
 		return result[0].Interface(), nil
 	}
+	return nil, nil
+}
 
-func (b *bindingManager) processMethodCall(callData *callData) (interface{}, error) {
+func (b *Manager) processMethodCall(callData *messages.CallData) (interface{}, error) {
 	// Return values
 	var result []reflect.Value
 	var err error
@@ -233,8 +236,8 @@ func (b *bindingManager) processMethodCall(callData *callData) (interface{}, err
 	return nil, nil
 }
 
-// process an incoming call request
+// ProcessCall processes the given call request
-func (b *bindingManager) processCall(callData *callData) (result interface{}, err error) {
+func (b *Manager) ProcessCall(callData *messages.CallData) (result interface{}, err error) {
 	b.log.Debugf("Wanting to call %s", callData.BindingName)
 
 	// Determine if this is function call or method call by the number of
@@ -272,7 +275,7 @@ func (b *bindingManager) processCall(callData *callData) (result interface{}, er
 
 // callWailsInitMethods calls all of the WailsInit methods that were
 // registered with the runtime object
-func (b *bindingManager) callWailsInitMethods() error {
+func (b *Manager) callWailsInitMethods() error {
 	// Create reflect value for runtime object
 	runtimeValue := reflect.ValueOf(b.runtime)
 	params := []reflect.Value{runtimeValue}

lib/binding/method.go

@@ -1,10 +1,12 @@
-package wails
+package binding
 
 import (
 	"bytes"
 	"encoding/json"
 	"fmt"
 	"reflect"
+
+	"github.com/wailsapp/wails/lib/logger"
 )
 
 type boundMethod struct {
@@ -13,7 +15,7 @@ type boundMethod struct {
 	method             reflect.Value
 	inputs             []reflect.Type
 	returnTypes        []reflect.Type
-	log                *CustomLogger
+	log                *logger.CustomLogger
 	hasErrorReturnType bool // Indicates if there is an error return type
 	isWailsInit        bool
 }
@@ -27,7 +29,7 @@ func newBoundMethod(name string, fullName string, method reflect.Value, objectTy
 	}
 
 	// Setup logger
-	result.log = newCustomLogger(result.fullName)
+	result.log = logger.NewCustomLogger(result.fullName)
 
 	// Check if Parameters are valid
 	err := result.processParameters()
@@ -57,7 +59,7 @@ func (b *boundMethod) processParameters() error {
 			b.inputs[index] = param
 			typ := param
 			index := index
-			b.log.DebugFields("Input param", Fields{
+			b.log.DebugFields("Input param", logger.Fields{
 				"index": index,
 				"name":  name,
 				"kind":  kind,
@@ -166,10 +168,10 @@ func (b *boundMethod) setInputValue(index int, typ reflect.Type, val interface{}
 			reflect.Map,
 			reflect.Ptr,
 			reflect.Slice:
-			logger.Debug("Converting nil to type")
+			b.log.Debug("Converting nil to type")
 			result = reflect.ValueOf(val).Convert(typ)
 		default:
-			logger.Debug("Cannot convert nil to type, returning error")
+			b.log.Debug("Cannot convert nil to type, returning error")
 			return reflect.Zero(typ), fmt.Errorf("Unable to use null value for parameter %d of method %s", index+1, b.fullName)
 		}
 	} else {

lib/event/manager.go

@@ -1,31 +1,34 @@
-package wails
+package event
 
 import (
 	"fmt"
 	"sync"
+	"github.com/wailsapp/wails/lib/logger"
+	"github.com/wailsapp/wails/lib/messages"
+	"github.com/wailsapp/wails/lib/interfaces"
 )
 
-// eventManager handles and processes events
+// Manager handles and processes events
-type eventManager struct {
+type Manager struct {
-	incomingEvents chan *eventData
+	incomingEvents chan *messages.EventData
 	listeners      map[string][]*eventListener
 	exit           bool
-	log            *CustomLogger
+	log            *logger.CustomLogger
-	renderer       Renderer // Messages will be dispatched to the frontend
+	renderer       interfaces.Renderer // Messages will be dispatched to the frontend
 }
 
-// newEventManager creates a new event manager with a 100 event buffer
+// NewManager creates a new event manager with a 100 event buffer
-func newEventManager() *eventManager {
+func NewManager() interfaces.EventManager {
-	return &eventManager{
+	return &Manager{
-		incomingEvents: make(chan *eventData, 100),
+		incomingEvents: make(chan *messages.EventData, 100),
 		listeners:      make(map[string][]*eventListener),
 		exit:           false,
-		log:            newCustomLogger("Events"),
+		log:            logger.NewCustomLogger("Events"),
 	}
 }
 
 // PushEvent places the given event on to the event queue
-func (e *eventManager) PushEvent(eventData *eventData) {
+func (e *Manager) PushEvent(eventData *messages.EventData) {
 	e.incomingEvents <- eventData
 }
 
@@ -40,7 +43,7 @@ type eventListener struct {
 }
 
 // Creates a new event listener from the given callback function
-func (e *eventManager) addEventListener(eventName string, callback func(...interface{}), counter int) error {
+func (e *Manager) addEventListener(eventName string, callback func(...interface{}), counter int) error {
 
 	// Sanity check inputs
 	if callback == nil {
@@ -65,18 +68,19 @@ func (e *eventManager) addEventListener(eventName string, callback func(...inter
 	return nil
 }
 
-func (e *eventManager) On(eventName string, callback func(...interface{})) {
+// On adds a listener for the given event
+func (e *Manager) On(eventName string, callback func(...interface{})) {
 	// Add a persistent eventListener (counter = 0)
 	e.addEventListener(eventName, callback, 0)
 }
 
 // Emit broadcasts the given event to the subscribed listeners
-func (e *eventManager) Emit(eventName string, optionalData ...interface{}) {
+func (e *Manager) Emit(eventName string, optionalData ...interface{}) {
-	e.incomingEvents <- &eventData{Name: eventName, Data: optionalData}
+	e.incomingEvents <- &messages.EventData{Name: eventName, Data: optionalData}
 }
 
-// Starts the event manager's queue processing
+// Start the event manager's queue processing
-func (e *eventManager) start(renderer Renderer) {
+func (e *Manager) Start(renderer interfaces.Renderer) {
 
 	e.log.Info("Starting")
 
@@ -95,7 +99,7 @@ func (e *eventManager) start(renderer Renderer) {
 			// TODO: Listen for application exit
 			select {
 			case event := <-e.incomingEvents:
-				e.log.DebugFields("Got Event", Fields{
+				e.log.DebugFields("Got Event", logger.Fields{
 					"data": event.Data,
 					"name": event.Name,
 				})
@@ -143,6 +147,6 @@ func (e *eventManager) start(renderer Renderer) {
 	wg.Wait()
 }
 
-func (e *eventManager) stop() {
+func (e *Manager) stop() {
 	e.exit = true
 }

lib/interfaces/appconfig.go

@@ -0,0 +1,14 @@
+package interfaces
+
+// AppConfig is the application config interface
+type AppConfig interface {
+	GetWidth() int
+	GetHeight() int
+	GetTitle() string
+	GetResizable() bool
+	GetDefaultHTML() string
+	GetDisableInspector() bool
+	GetColour() string
+	GetCSS() string
+	GetJS() string
+}

lib/interfaces/bindingmanager.go

@@ -0,0 +1,10 @@
+package interfaces
+
+import "github.com/wailsapp/wails/lib/messages"
+
+// BindingManager is the binding manager interface
+type BindingManager interface {
+	Bind(object interface{})
+	Start(renderer Renderer, runtime Runtime) error
+	ProcessCall(callData *messages.CallData) (result interface{}, err error)
+}

lib/interfaces/eventmanager.go

@@ -0,0 +1,11 @@
+package interfaces
+
+import "github.com/wailsapp/wails/lib/messages"
+
+// EventManager is the event manager interface
+type EventManager interface {
+	PushEvent(*messages.EventData)
+	Emit(eventName string, optionalData ...interface{})
+	On(eventName string, callback func(...interface{}))
+	Start(Renderer)
+}

lib/interfaces/ipcmanager.go

@@ -0,0 +1,8 @@
+package interfaces
+
+// IPCManager is the event manager interface
+type IPCManager interface {
+	BindRenderer(Renderer)
+	Dispatch(message string)
+	Start(eventManager EventManager, bindingManager BindingManager)
+}

lib/interfaces/renderer.go

@@ -1,8 +1,11 @@
-package wails
+package interfaces
 
+import (
+	"github.com/wailsapp/wails/lib/messages"
+)
 // Renderer is an interface describing a Wails target to render the app to
 type Renderer interface {
-	Initialise(*AppConfig, *ipcManager, *eventManager) error
+	Initialise(AppConfig, IPCManager, EventManager) error
 	Run() error
 
 	// Binding
@@ -10,7 +13,7 @@ type Renderer interface {
 	Callback(data string) error
 
 	// Events
-	NotifyEvent(eventData *eventData) error
+	NotifyEvent(eventData *messages.EventData) error
 
 	// Dialog Runtime
 	SelectFile() string

lib/interfaces/runtime.go

@@ -0,0 +1,4 @@
+package interfaces
+
+// Runtime interface
+type Runtime interface {}

lib/ipc/call.go

@@ -1,13 +1,10 @@
-package wails
+package ipc
 
 import (
 	"fmt"
-)
 
-type callData struct {
+	"github.com/wailsapp/wails/lib/messages"
-	BindingName string `json:"bindingName"`
+)
-	Data        string `json:"data,omitempty"`
-}
 
 func init() {
 	messageProcessors["call"] = processCallData
@@ -15,7 +12,7 @@ func init() {
 
 func processCallData(message *ipcMessage) (*ipcMessage, error) {
 
-	var payload callData
+	var payload messages.CallData
 
 	// Decode binding call data
 	payloadMap := message.Payload.(map[string]interface{})

lib/ipc/event.go

@@ -1,13 +1,10 @@
-package wails
+package ipc
 
 import (
 	"encoding/json"
-)
 
-type eventData struct {
+	"github.com/wailsapp/wails/lib/messages"
-	Name string      `json:"name"`
+)
-	Data interface{} `json:"data"`
-}
 
 // Register the message handler
 func init() {
@@ -19,7 +16,7 @@ func processEventData(message *ipcMessage) (*ipcMessage, error) {
 
 	// TODO: Is it worth double checking this is actually an event message,
 	// even though that's done by the caller?
-	var payload eventData
+	var payload messages.EventData
 
 	// Decode event data
 	payloadMap := message.Payload.(map[string]interface{})

lib/ipc/log.go

@@ -1,9 +1,6 @@
-package wails
+package ipc
 
-type logData struct {
+import "github.com/wailsapp/wails/lib/messages"
-	Level   string `json:"level"`
-	Message string `json:"string"`
-}
 
 // Register the message handler
 func init() {
@@ -13,7 +10,7 @@ func init() {
 // This processes the given log message
 func processLogData(message *ipcMessage) (*ipcMessage, error) {
 
-	var payload logData
+	var payload messages.LogData
 
 	// Decode event data
 	payloadMap := message.Payload.(map[string]interface{})

lib/ipc/manager.go

@@ -1,35 +1,42 @@
-package wails
+package ipc
 
 import (
 	"fmt"
+
+	"github.com/wailsapp/wails/lib/interfaces"
+	"github.com/wailsapp/wails/lib/logger"
+	"github.com/wailsapp/wails/lib/messages"
 )
 
-type ipcManager struct {
+// Manager manages the IPC subsystem
-	renderer     Renderer // The renderer
+type Manager struct {
+	renderer     interfaces.Renderer // The renderer
 	messageQueue chan *ipcMessage
 	// quitChannel  chan struct{}
 	// signals      chan os.Signal
-	log            *CustomLogger
+	log            *logger.CustomLogger
-	eventManager   *eventManager
+	eventManager   interfaces.EventManager
-	bindingManager *bindingManager
+	bindingManager interfaces.BindingManager
 }
 
-func newIPCManager() *ipcManager {
+// NewManager creates a new IPC Manager
-	result := &ipcManager{
+func NewManager() interfaces.IPCManager {
+	result := &Manager{
 		messageQueue: make(chan *ipcMessage, 100),
 		// 		quitChannel:  make(chan struct{}),
 		// 		signals:      make(chan os.Signal, 1),
-		log: newCustomLogger("IPC"),
+		log: logger.NewCustomLogger("IPC"),
 	}
 	return result
 }
 
-// Sets the renderer, returns the dispatch function
+// BindRenderer sets the renderer, returns the dispatch function
-func (i *ipcManager) bindRenderer(renderer Renderer) {
+func (i *Manager) BindRenderer(renderer interfaces.Renderer) {
 	i.renderer = renderer
 }
 
-func (i *ipcManager) start(eventManager *eventManager, bindingManager *bindingManager) {
+// Start the IPC Manager
+func (i *Manager) Start(eventManager interfaces.EventManager, bindingManager interfaces.BindingManager) {
 
 	// Store manager references
 	i.eventManager = eventManager
@@ -42,36 +49,36 @@ func (i *ipcManager) start(eventManager *eventManager, bindingManager *bindingMa
 		for running {
 			select {
 			case incomingMessage := <-i.messageQueue:
-				i.log.DebugFields("Processing message", Fields{
+				i.log.DebugFields("Processing message", logger.Fields{
 					"1D": &incomingMessage,
 				})
 				switch incomingMessage.Type {
 				case "call":
-					callData := incomingMessage.Payload.(*callData)
+					callData := incomingMessage.Payload.(*messages.CallData)
-					i.log.DebugFields("Processing call", Fields{
+					i.log.DebugFields("Processing call", logger.Fields{
 						"1D":          &incomingMessage,
 						"bindingName": callData.BindingName,
 						"data":        callData.Data,
 					})
 					go func() {
-						result, err := bindingManager.processCall(callData)
+						result, err := bindingManager.ProcessCall(callData)
-						i.log.DebugFields("processed call", Fields{"result": result, "err": err})
+						i.log.DebugFields("processed call", logger.Fields{"result": result, "err": err})
 						if err != nil {
 							incomingMessage.ReturnError(err.Error())
 						} else {
 							incomingMessage.ReturnSuccess(result)
 						}
-						i.log.DebugFields("Finished processing call", Fields{
+						i.log.DebugFields("Finished processing call", logger.Fields{
 							"1D": &incomingMessage,
 						})
 					}()
 				case "event":
 
 					// Extract event data
-					eventData := incomingMessage.Payload.(*eventData)
+					eventData := incomingMessage.Payload.(*messages.EventData)
 
 					// Log
-					i.log.DebugFields("Processing event", Fields{
+					i.log.DebugFields("Processing event", logger.Fields{
 						"name": eventData.Name,
 						"data": eventData.Data,
 					})
@@ -80,24 +87,24 @@ func (i *ipcManager) start(eventManager *eventManager, bindingManager *bindingMa
 					i.eventManager.PushEvent(eventData)
 
 					// Log
-					i.log.DebugFields("Finished processing event", Fields{
+					i.log.DebugFields("Finished processing event", logger.Fields{
 						"name": eventData.Name,
 					})
 				case "log":
-					logdata := incomingMessage.Payload.(*logData)
+					logdata := incomingMessage.Payload.(*messages.LogData)
 					switch logdata.Level {
 					case "info":
-						logger.Info(logdata.Message)
+						logger.GlobalLogger.Info(logdata.Message)
 					case "debug":
-						logger.Debug(logdata.Message)
+						logger.GlobalLogger.Debug(logdata.Message)
 					case "warning":
-						logger.Warning(logdata.Message)
+						logger.GlobalLogger.Warn(logdata.Message)
 					case "error":
-						logger.Error(logdata.Message)
+						logger.GlobalLogger.Error(logdata.Message)
 					case "fatal":
-						logger.Fatal(logdata.Message)
+						logger.GlobalLogger.Fatal(logdata.Message)
 					default:
-						i.log.ErrorFields("Invalid log level sent", Fields{
+						logger.ErrorFields("Invalid log level sent", logger.Fields{
 							"level":   logdata.Level,
 							"message": logdata.Message,
 						})
@@ -107,7 +114,7 @@ func (i *ipcManager) start(eventManager *eventManager, bindingManager *bindingMa
 				}
 
 				// Log
-				i.log.DebugFields("Finished processing message", Fields{
+				i.log.DebugFields("Finished processing message", logger.Fields{
 					"1D": &incomingMessage,
 				})
 				// 			case <-manager.quitChannel:
@@ -125,7 +132,7 @@ func (i *ipcManager) start(eventManager *eventManager, bindingManager *bindingMa
 // Dispatch receives JSON encoded messages from the renderer.
 // It processes the message to ensure that it is valid and places
 // the processed message on the message queue
-func (i *ipcManager) Dispatch(message string) {
+func (i *Manager) Dispatch(message string) {
 
 	// Create a new IPC Message
 	incomingMessage, err := newIPCMessage(message, i.SendResponse)
@@ -148,7 +155,7 @@ func (i *ipcManager) Dispatch(message string) {
 }
 
 // SendResponse sends the given response back to the frontend
-func (i *ipcManager) SendResponse(response *ipcResponse) error {
+func (i *Manager) SendResponse(response *ipcResponse) error {
 
 	// Serialise the Message
 	data, err := response.Serialise()

lib/ipc/message.go

@@ -1,4 +1,4 @@
-package wails
+package ipc
 
 import (
 	"encoding/json"

lib/ipc/response.go

@@ -1,4 +1,4 @@
-package wails
+package ipc
 
 import (
 	"encoding/hex"

lib/logger/custom.go

@@ -1,4 +1,4 @@
-package wails
+package logger
 
 // CustomLogger is a wrapper object to logrus
 type CustomLogger struct {
@@ -6,7 +6,8 @@ type CustomLogger struct {
 	errorOnly bool
 }
 
-func newCustomLogger(prefix string) *CustomLogger {
+// NewCustomLogger creates a new custom logger with the given prefix
+func NewCustomLogger(prefix string) *CustomLogger {
 	return &CustomLogger{
 		prefix: "[" + prefix + "] ",
 	}
@@ -14,90 +15,90 @@ func newCustomLogger(prefix string) *CustomLogger {
 
 // Info level message
 func (c *CustomLogger) Info(message string) {
-	logger.Info(c.prefix + message)
+	GlobalLogger.Info(c.prefix + message)
 }
 
 // Infof - formatted message
 func (c *CustomLogger) Infof(message string, args ...interface{}) {
-	logger.Infof(c.prefix+message, args...)
+	GlobalLogger.Infof(c.prefix+message, args...)
 }
 
 // InfoFields - message with fields
 func (c *CustomLogger) InfoFields(message string, fields Fields) {
-	logger.WithFields(map[string]interface{}(fields)).Info(c.prefix + message)
+	GlobalLogger.WithFields(map[string]interface{}(fields)).Info(c.prefix + message)
 }
 
 // Debug level message
 func (c *CustomLogger) Debug(message string) {
-	logger.Debug(c.prefix + message)
+	GlobalLogger.Debug(c.prefix + message)
 }
 
 // Debugf - formatted message
 func (c *CustomLogger) Debugf(message string, args ...interface{}) {
-	logger.Debugf(c.prefix+message, args...)
+	GlobalLogger.Debugf(c.prefix+message, args...)
 }
 
 // DebugFields - message with fields
 func (c *CustomLogger) DebugFields(message string, fields Fields) {
-	logger.WithFields(map[string]interface{}(fields)).Debug(c.prefix + message)
+	GlobalLogger.WithFields(map[string]interface{}(fields)).Debug(c.prefix + message)
 }
 
 // Warn level message
 func (c *CustomLogger) Warn(message string) {
-	logger.Warn(c.prefix + message)
+	GlobalLogger.Warn(c.prefix + message)
 }
 
 // Warnf - formatted message
 func (c *CustomLogger) Warnf(message string, args ...interface{}) {
-	logger.Warnf(c.prefix+message, args...)
+	GlobalLogger.Warnf(c.prefix+message, args...)
 }
 
 // WarnFields - message with fields
 func (c *CustomLogger) WarnFields(message string, fields Fields) {
-	logger.WithFields(map[string]interface{}(fields)).Warn(c.prefix + message)
+	GlobalLogger.WithFields(map[string]interface{}(fields)).Warn(c.prefix + message)
 }
 
 // Error level message
 func (c *CustomLogger) Error(message string) {
-	logger.Error(c.prefix + message)
+	GlobalLogger.Error(c.prefix + message)
 }
 
 // Errorf - formatted message
 func (c *CustomLogger) Errorf(message string, args ...interface{}) {
-	logger.Errorf(c.prefix+message, args...)
+	GlobalLogger.Errorf(c.prefix+message, args...)
 }
 
 // ErrorFields - message with fields
 func (c *CustomLogger) ErrorFields(message string, fields Fields) {
-	logger.WithFields(map[string]interface{}(fields)).Error(c.prefix + message)
+	GlobalLogger.WithFields(map[string]interface{}(fields)).Error(c.prefix + message)
 }
 
 // Fatal level message
 func (c *CustomLogger) Fatal(message string) {
-	logger.Fatal(c.prefix + message)
+	GlobalLogger.Fatal(c.prefix + message)
 }
 
 // Fatalf - formatted message
 func (c *CustomLogger) Fatalf(message string, args ...interface{}) {
-	logger.Fatalf(c.prefix+message, args...)
+	GlobalLogger.Fatalf(c.prefix+message, args...)
 }
 
 // FatalFields - message with fields
 func (c *CustomLogger) FatalFields(message string, fields Fields) {
-	logger.WithFields(map[string]interface{}(fields)).Fatal(c.prefix + message)
+	GlobalLogger.WithFields(map[string]interface{}(fields)).Fatal(c.prefix + message)
 }
 
 // Panic level message
 func (c *CustomLogger) Panic(message string) {
-	logger.Panic(c.prefix + message)
+	GlobalLogger.Panic(c.prefix + message)
 }
 
 // Panicf - formatted message
 func (c *CustomLogger) Panicf(message string, args ...interface{}) {
-	logger.Panicf(c.prefix+message, args...)
+	GlobalLogger.Panicf(c.prefix+message, args...)
 }
 
 // PanicFields - message with fields
 func (c *CustomLogger) PanicFields(message string, fields Fields) {
-	logger.WithFields(map[string]interface{}(fields)).Panic(c.prefix + message)
+	GlobalLogger.WithFields(map[string]interface{}(fields)).Panic(c.prefix + message)
 }

lib/logger/log.go

@@ -0,0 +1,47 @@
+package logger
+
+import (
+	"os"
+	"strings"
+
+	"github.com/sirupsen/logrus"
+)
+
+// GlobalLogger is the global logger
+var GlobalLogger = logrus.New()
+
+// Fields is used by the customLogger object to output
+// fields along with a message
+type Fields map[string]interface{}
+
+// Default options for the global logger
+func init() {
+	GlobalLogger.SetOutput(os.Stdout)
+	GlobalLogger.SetLevel(logrus.DebugLevel)
+}
+
+// ErrorFields is a helper for logging fields to the global logger
+func ErrorFields(message string, fields Fields) {
+	GlobalLogger.WithFields(map[string]interface{}(fields)).Error(message)
+}
+
+// SetLogLevel sets the log level to the given level
+func SetLogLevel(level string) {
+	switch strings.ToLower(level) {
+	case "info":
+		GlobalLogger.SetLevel(logrus.InfoLevel)
+	case "debug":
+		GlobalLogger.SetLevel(logrus.DebugLevel)
+	case "warn":
+		GlobalLogger.SetLevel(logrus.WarnLevel)
+	case "error":
+		GlobalLogger.SetLevel(logrus.ErrorLevel)
+	case "fatal":
+		GlobalLogger.SetLevel(logrus.FatalLevel)
+	case "panic":
+		GlobalLogger.SetLevel(logrus.PanicLevel)
+	default:
+		GlobalLogger.SetLevel(logrus.DebugLevel)
+		GlobalLogger.Warnf("Log level '%s' not recognised. Setting to Debug.", level)
+	}
+}

lib/messages/calldata.go

@@ -0,0 +1,7 @@
+package messages
+
+// CallData represents a call to a Go function/method
+type CallData struct {
+	BindingName string `json:"bindingName"`
+	Data        string `json:"data,omitempty"`
+}

lib/messages/eventdata.go

@@ -0,0 +1,7 @@
+package messages
+
+// EventData represents an event sent from the frontend
+type EventData struct {
+	Name string      `json:"name"`
+	Data interface{} `json:"data"`
+}

lib/messages/logdata.go

@@ -0,0 +1,7 @@
+package messages
+
+// LogData represents a call to log from the frontend
+type LogData struct {
+	Level   string `json:"level"`
+	Message string `json:"string"`
+}

lib/renderer/bridge.go

@@ -1,4 +1,4 @@
-package wails
+package renderer
 
 import (
 	"encoding/json"
@@ -10,6 +10,9 @@ import (
 	"github.com/dchest/htmlmin"
 	"github.com/gorilla/websocket"
 	"github.com/leaanthony/mewn"
+	"github.com/wailsapp/wails/lib/interfaces"
+	"github.com/wailsapp/wails/lib/logger"
+	"github.com/wailsapp/wails/lib/messages"
 )
 
 type messageType int
@@ -28,17 +31,17 @@ func (m messageType) toString() string {
 	return [...]string{"j", "s", "h", "n", "b", "c", "w"}[m]
 }
 
-// Headless is a backend that opens a local web server
+// Bridge is a backend that opens a local web server
 // and renders the files over a websocket
-type Headless struct {
+type Bridge struct {
 	// Common
-	log          *CustomLogger
+	log          *logger.CustomLogger
-	ipcManager   *ipcManager
+	ipcManager   interfaces.IPCManager
-	appConfig    *AppConfig
+	appConfig    interfaces.AppConfig
-	eventManager *eventManager
+	eventManager interfaces.EventManager
 	bindingCache []string
 
-	// Headless specific
+	// Bridge specific
 	initialisationJS []string
 	server           *http.Server
 	theConnection    *websocket.Conn
@@ -47,17 +50,17 @@ type Headless struct {
 	lock sync.Mutex
 }
 
-// Initialise the Headless Renderer
+// Initialise the Bridge Renderer
-func (h *Headless) Initialise(appConfig *AppConfig, ipcManager *ipcManager, eventManager *eventManager) error {
+func (h *Bridge) Initialise(appConfig interfaces.AppConfig, ipcManager interfaces.IPCManager, eventManager interfaces.EventManager) error {
 	h.ipcManager = ipcManager
 	h.appConfig = appConfig
 	h.eventManager = eventManager
-	ipcManager.bindRenderer(h)
+	ipcManager.BindRenderer(h)
-	h.log = newCustomLogger("Bridge")
+	h.log = logger.NewCustomLogger("Bridge")
 	return nil
 }
 
-func (h *Headless) evalJS(js string, mtype messageType) error {
+func (h *Bridge) evalJS(js string, mtype messageType) error {
 
 	message := mtype.toString() + js
 
@@ -71,7 +74,7 @@ func (h *Headless) evalJS(js string, mtype messageType) error {
 	return nil
 }
 
-func (h *Headless) injectCSS(css string) {
+func (h *Bridge) injectCSS(css string) {
 	// Minify css to overcome issues in the browser with carriage returns
 	minified, err := htmlmin.Minify([]byte(css), &htmlmin.Options{
 		MinifyStyles: true,
@@ -83,11 +86,11 @@ func (h *Headless) injectCSS(css string) {
 	minifiedCSS = strings.Replace(minifiedCSS, "\\", "\\\\", -1)
 	minifiedCSS = strings.Replace(minifiedCSS, "'", "\\'", -1)
 	minifiedCSS = strings.Replace(minifiedCSS, "\n", " ", -1)
-	inject := fmt.Sprintf("wails._.injectCSS('%s')", minifiedCSS)
+	inject := fmt.Sprintf("wails._.InjectCSS('%s')", minifiedCSS)
 	h.evalJS(inject, cssMessage)
 }
 
-func (h *Headless) wsBridgeHandler(w http.ResponseWriter, r *http.Request) {
+func (h *Bridge) wsBridgeHandler(w http.ResponseWriter, r *http.Request) {
 	conn, err := websocket.Upgrade(w, r, w.Header(), 1024, 1024)
 	if err != nil {
 		http.Error(w, "Could not open websocket connection", http.StatusBadRequest)
@@ -102,7 +105,7 @@ func (h *Headless) wsBridgeHandler(w http.ResponseWriter, r *http.Request) {
 	go h.start(conn)
 }
 
-func (h *Headless) sendMessage(conn *websocket.Conn, msg string) {
+func (h *Bridge) sendMessage(conn *websocket.Conn, msg string) {
 
 	h.lock.Lock()
 	defer h.lock.Unlock()
@@ -112,12 +115,12 @@ func (h *Headless) sendMessage(conn *websocket.Conn, msg string) {
 	}
 }
 
-func (h *Headless) start(conn *websocket.Conn) {
+func (h *Bridge) start(conn *websocket.Conn) {
 
 	// set external.invoke
 	h.log.Infof("Connected to frontend.")
 
-	wailsRuntime := mewn.String("./wailsruntimeassets/default/wails.min.js")
+	wailsRuntime := mewn.String("../../runtime/assets/wails.js")
 	h.evalJS(wailsRuntime, wailsRuntimeMessage)
 
 	// Inject bindings
@@ -144,8 +147,8 @@ func (h *Headless) start(conn *websocket.Conn) {
 	}
 }
 
-// Run the app in headless mode!
+// Run the app in Bridge mode!
-func (h *Headless) Run() error {
+func (h *Bridge) Run() error {
 	h.server = &http.Server{Addr: ":34115"}
 	http.HandleFunc("/bridge", h.wsBridgeHandler)
 
@@ -160,45 +163,45 @@ func (h *Headless) Run() error {
 }
 
 // NewBinding creates a new binding with the frontend
-func (h *Headless) NewBinding(methodName string) error {
+func (h *Bridge) NewBinding(methodName string) error {
 	h.bindingCache = append(h.bindingCache, methodName)
 	return nil
 }
 
-// SelectFile is unsupported for Headless but required
+// SelectFile is unsupported for Bridge but required
 // for the Renderer interface
-func (h *Headless) SelectFile() string {
+func (h *Bridge) SelectFile() string {
 	h.log.Warn("SelectFile() unsupported in bridge mode")
 	return ""
 }
 
-// SelectDirectory is unsupported for Headless but required
+// SelectDirectory is unsupported for Bridge but required
 // for the Renderer interface
-func (h *Headless) SelectDirectory() string {
+func (h *Bridge) SelectDirectory() string {
 	h.log.Warn("SelectDirectory() unsupported in bridge mode")
 	return ""
 }
 
-// SelectSaveFile is unsupported for Headless but required
+// SelectSaveFile is unsupported for Bridge but required
 // for the Renderer interface
-func (h *Headless) SelectSaveFile() string {
+func (h *Bridge) SelectSaveFile() string {
 	h.log.Warn("SelectSaveFile() unsupported in bridge mode")
 	return ""
 }
 
 // Callback sends a callback to the frontend
-func (h *Headless) Callback(data string) error {
+func (h *Bridge) Callback(data string) error {
 	return h.evalJS(data, callbackMessage)
 }
 
 // NotifyEvent notifies the frontend of an event
-func (h *Headless) NotifyEvent(event *eventData) error {
+func (h *Bridge) NotifyEvent(event *messages.EventData) error {
 
 	// Look out! Nils about!
 	var err error
 	if event == nil {
 		err = fmt.Errorf("Sent nil event to renderer.webViewRenderer")
-		logger.Error(err)
+		h.log.Error(err.Error())
 		return err
 	}
 
@@ -215,37 +218,37 @@ func (h *Headless) NotifyEvent(event *eventData) error {
 		}
 	}
 
-	message := fmt.Sprintf("window.wails._.notify('%s','%s')", event.Name, data)
+	message := fmt.Sprintf("window.wails._.Notify('%s','%s')", event.Name, data)
 	return h.evalJS(message, notifyMessage)
 }
 
-// SetColour is unsupported for Headless but required
+// SetColour is unsupported for Bridge but required
 // for the Renderer interface
-func (h *Headless) SetColour(colour string) error {
+func (h *Bridge) SetColour(colour string) error {
-	h.log.WarnFields("SetColour ignored for headless more", Fields{"col": colour})
+	h.log.WarnFields("SetColour ignored for Bridge more", logger.Fields{"col": colour})
 	return nil
 }
 
-// Fullscreen is unsupported for Headless but required
+// Fullscreen is unsupported for Bridge but required
 // for the Renderer interface
-func (h *Headless) Fullscreen() {
+func (h *Bridge) Fullscreen() {
 	h.log.Warn("Fullscreen() unsupported in bridge mode")
 }
 
-// UnFullscreen is unsupported for Headless but required
+// UnFullscreen is unsupported for Bridge but required
 // for the Renderer interface
-func (h *Headless) UnFullscreen() {
+func (h *Bridge) UnFullscreen() {
 	h.log.Warn("UnFullscreen() unsupported in bridge mode")
 }
 
-// SetTitle is currently unsupported for Headless but required
+// SetTitle is currently unsupported for Bridge but required
 // for the Renderer interface
-func (h *Headless) SetTitle(title string) {
+func (h *Bridge) SetTitle(title string) {
-	h.log.WarnFields("SetTitle() unsupported in bridge mode", Fields{"title": title})
+	h.log.WarnFields("SetTitle() unsupported in bridge mode", logger.Fields{"title": title})
 }
 
-// Close is unsupported for Headless but required
+// Close is unsupported for Bridge but required
 // for the Renderer interface
-func (h *Headless) Close() {
+func (h *Bridge) Close() {
 	h.log.Warn("Close() unsupported in bridge mode")
 }

lib/renderer/webview.go

@@ -1,53 +1,62 @@
-package wails
+package renderer
 
 import (
 	"encoding/json"
 	"fmt"
 	"math/rand"
+	"strings"
 	"sync"
 	"time"
 
 	"github.com/go-playground/colors"
 	"github.com/leaanthony/mewn"
-	"github.com/wailsapp/webview"
+	"github.com/wailsapp/wails/lib/interfaces"
+	"github.com/wailsapp/wails/lib/logger"
+	"github.com/wailsapp/wails/lib/messages"
+	wv "github.com/wailsapp/wails/lib/renderer/webview"
 )
 
-// Window defines the main application window
+// WebView defines the main webview application window
 // Default values in []
-type webViewRenderer struct {
+type WebView struct {
-	window       webview.WebView // The webview object
+	window       wv.WebView // The webview object
-	ipc          *ipcManager
+	ipc          interfaces.IPCManager
-	log          *CustomLogger
+	log          *logger.CustomLogger
-	config       *AppConfig
+	config       interfaces.AppConfig
-	eventManager *eventManager
+	eventManager interfaces.EventManager
 	bindingCache []string
 }
 
+// NewWebView returns a new WebView struct
+func NewWebView() *WebView {
+	return &WebView{}
+}
+
 // Initialise sets up the WebView
-func (w *webViewRenderer) Initialise(config *AppConfig, ipc *ipcManager, eventManager *eventManager) error {
+func (w *WebView) Initialise(config interfaces.AppConfig, ipc interfaces.IPCManager, eventManager interfaces.EventManager) error {
 
 	// Store reference to eventManager
 	w.eventManager = eventManager
 
 	// Set up logger
-	w.log = newCustomLogger("WebView")
+	w.log = logger.NewCustomLogger("WebView")
 
 	// Set up the dispatcher function
 	w.ipc = ipc
-	ipc.bindRenderer(w)
+	ipc.BindRenderer(w)
 
 	// Save the config
 	w.config = config
 
 	// Create the WebView instance
-	w.window = webview.NewWebview(webview.Settings{
+	w.window = wv.NewWebview(wv.Settings{
-		Width:     config.Width,
+		Width:     config.GetWidth(),
-		Height:    config.Height,
+		Height:    config.GetHeight(),
-		Title:     config.Title,
+		Title:     config.GetTitle(),
-		Resizable: config.Resizable,
+		Resizable: config.GetResizable(),
-		URL:       config.defaultHTML,
+		URL:       config.GetDefaultHTML(),
-		Debug:     !config.DisableInspector,
+		Debug:     !config.GetDisableInspector(),
-		ExternalInvokeCallback: func(_ webview.WebView, message string) {
+		ExternalInvokeCallback: func(_ wv.WebView, message string) {
 			w.ipc.Dispatch(message)
 		},
 	})
@@ -55,7 +64,7 @@ func (w *webViewRenderer) Initialise(config *AppConfig, ipc *ipcManager, eventMa
 	// SignalManager.OnExit(w.Exit)
 
 	// Set colour
-	err := w.SetColour(config.Colour)
+	err := w.SetColour(config.GetColour())
 	if err != nil {
 		return err
 	}
@@ -64,7 +73,8 @@ func (w *webViewRenderer) Initialise(config *AppConfig, ipc *ipcManager, eventMa
 	return nil
 }
 
-func (w *webViewRenderer) SetColour(colour string) error {
+// SetColour sets the window colour
+func (w *WebView) SetColour(colour string) error {
 	color, err := colors.Parse(colour)
 	if err != nil {
 		return err
@@ -80,12 +90,12 @@ func (w *webViewRenderer) SetColour(colour string) error {
 
 // evalJS evaluates the given js in the WebView
 // I should rename this to evilJS lol
-func (w *webViewRenderer) evalJS(js string) error {
+func (w *WebView) evalJS(js string) error {
 	outputJS := fmt.Sprintf("%.45s", js)
 	if len(js) > 45 {
 		outputJS += "..."
 	}
-	w.log.DebugFields("Eval", Fields{"js": outputJS})
+	w.log.DebugFields("Eval", logger.Fields{"js": outputJS})
 	//
 	w.window.Dispatch(func() {
 		w.window.Eval(js)
@@ -93,12 +103,21 @@ func (w *webViewRenderer) evalJS(js string) error {
 	return nil
 }
 
+// Escape the Javascripts!
+func escapeJS(js string) (string, error) {
+	result := strings.Replace(js, "\\", "\\\\", -1)
+	result = strings.Replace(result, "'", "\\'", -1)
+	result = strings.Replace(result, "\n", "\\n", -1)
+	return result, nil
+}
+
 // evalJSSync evaluates the given js in the WebView synchronously
 // Do not call this from the main thread or you'll nuke your app because
 // you won't get the callback.
-func (w *webViewRenderer) evalJSSync(js string) error {
+func (w *WebView) evalJSSync(js string) error {
 
 	minified, err := escapeJS(js)
+
 	if err != nil {
 		return err
 	}
@@ -107,7 +126,7 @@ func (w *webViewRenderer) evalJSSync(js string) error {
 	if len(js) > 45 {
 		outputJS += "..."
 	}
-	w.log.DebugFields("EvalSync", Fields{"js": outputJS})
+	w.log.DebugFields("EvalSync", logger.Fields{"js": outputJS})
 
 	ID := fmt.Sprintf("syncjs:%d:%d", time.Now().Unix(), rand.Intn(9999))
 	var wg sync.WaitGroup
@@ -122,7 +141,7 @@ func (w *webViewRenderer) evalJSSync(js string) error {
 			wg.Done()
 			exit = true
 		})
-		command := fmt.Sprintf("wails._.addScript('%s', '%s')", minified, ID)
+		command := fmt.Sprintf("wails._.AddScript('%s', '%s')", minified, ID)
 		w.window.Dispatch(func() {
 			w.window.Eval(command)
 		})
@@ -137,24 +156,24 @@ func (w *webViewRenderer) evalJSSync(js string) error {
 }
 
 // injectCSS adds the given CSS to the WebView
-func (w *webViewRenderer) injectCSS(css string) {
+func (w *WebView) injectCSS(css string) {
 	w.window.Dispatch(func() {
 		w.window.InjectCSS(css)
 	})
 }
 
-// Quit the window
+// Exit closes the window
-func (w *webViewRenderer) Exit() {
+func (w *WebView) Exit() {
 	w.window.Exit()
 }
 
 // Run the window main loop
-func (w *webViewRenderer) Run() error {
+func (w *WebView) Run() error {
 
-	w.log.Info("Run()")
+	w.log.Info("Running...")
 
 	// Runtime assets
-	wailsRuntime := mewn.String("./wailsruntimeassets/default/wails.min.js")
+	wailsRuntime := mewn.String("../../runtime/assets/wails.js")
 	w.evalJS(wailsRuntime)
 
 	// Ping the wait channel when the wails runtime is loaded
@@ -168,38 +187,30 @@ func (w *webViewRenderer) Run() error {
 				w.evalJSSync(binding)
 			}
 
-			// // Inject Framework
-			// if w.frameworkJS != "" {
-			// 	w.evalJSSync(w.frameworkJS)
-			// }
-			// if w.frameworkCSS != "" {
-			// 	w.injectCSS(w.frameworkCSS)
-			// }
-
 			// Inject user CSS
-			if w.config.CSS != "" {
+			if w.config.GetCSS() != "" {
-				outputCSS := fmt.Sprintf("%.45s", w.config.CSS)
+				outputCSS := fmt.Sprintf("%.45s", w.config.GetCSS())
 				if len(outputCSS) > 45 {
 					outputCSS += "..."
 				}
-				w.log.DebugFields("Inject User CSS", Fields{"css": outputCSS})
+				w.log.DebugFields("Inject User CSS", logger.Fields{"css": outputCSS})
-				w.injectCSS(w.config.CSS)
+				w.injectCSS(w.config.GetCSS())
 			} else {
 				// Use default wails css
 				w.log.Debug("Injecting Default Wails CSS")
-				defaultCSS := mewn.String("./wailsruntimeassets/default/wails.css")
+				defaultCSS := mewn.String("../../runtime/assets/wails.css")
 
 				w.injectCSS(defaultCSS)
 			}
 
 			// Inject user JS
-			if w.config.JS != "" {
+			if w.config.GetJS() != "" {
-				outputJS := fmt.Sprintf("%.45s", w.config.JS)
+				outputJS := fmt.Sprintf("%.45s", w.config.GetJS())
 				if len(outputJS) > 45 {
 					outputJS += "..."
 				}
-				w.log.DebugFields("Inject User JS", Fields{"js": outputJS})
+				w.log.DebugFields("Inject User JS", logger.Fields{"js": outputJS})
-				w.evalJSSync(w.config.JS)
+				w.evalJSSync(w.config.GetJS())
 			}
 
 			// Emit that everything is loaded and ready
@@ -213,14 +224,15 @@ func (w *webViewRenderer) Run() error {
 	return nil
 }
 
-// Binds the given method name with the front end
+// NewBinding registers a new binding with the frontend
-func (w *webViewRenderer) NewBinding(methodName string) error {
+func (w *WebView) NewBinding(methodName string) error {
-	objectCode := fmt.Sprintf("window.wails._.newBinding('%s');", methodName)
+	objectCode := fmt.Sprintf("window.wails._.NewBinding('%s');", methodName)
 	w.bindingCache = append(w.bindingCache, objectCode)
 	return nil
 }
 
-func (w *webViewRenderer) SelectFile() string {
+// SelectFile opens a dialog that allows the user to select a file
+func (w *WebView) SelectFile() string {
 	var result string
 
 	// We need to run this on the main thread, however Dispatch is
@@ -230,7 +242,7 @@ func (w *webViewRenderer) SelectFile() string {
 	wg.Add(1)
 	go func() {
 		w.window.Dispatch(func() {
-			result = w.window.Dialog(webview.DialogTypeOpen, 0, "Select File", "")
+			result = w.window.Dialog(wv.DialogTypeOpen, 0, "Select File", "")
 			wg.Done()
 		})
 	}()
@@ -238,7 +250,8 @@ func (w *webViewRenderer) SelectFile() string {
 	return result
 }
 
-func (w *webViewRenderer) SelectDirectory() string {
+// SelectDirectory opens a dialog that allows the user to select a directory
+func (w *WebView) SelectDirectory() string {
 	var result string
 	// We need to run this on the main thread, however Dispatch is
 	// non-blocking so we launch this in a goroutine and wait for
@@ -247,7 +260,7 @@ func (w *webViewRenderer) SelectDirectory() string {
 	wg.Add(1)
 	go func() {
 		w.window.Dispatch(func() {
-			result = w.window.Dialog(webview.DialogTypeOpen, webview.DialogFlagDirectory, "Select Directory", "")
+			result = w.window.Dialog(wv.DialogTypeOpen, wv.DialogFlagDirectory, "Select Directory", "")
 			wg.Done()
 		})
 	}()
@@ -255,7 +268,8 @@ func (w *webViewRenderer) SelectDirectory() string {
 	return result
 }
 
-func (w *webViewRenderer) SelectSaveFile() string {
+// SelectSaveFile opens a dialog that allows the user to select a file to save
+func (w *WebView) SelectSaveFile() string {
 	var result string
 	// We need to run this on the main thread, however Dispatch is
 	// non-blocking so we launch this in a goroutine and wait for
@@ -264,7 +278,7 @@ func (w *webViewRenderer) SelectSaveFile() string {
 	wg.Add(1)
 	go func() {
 		w.window.Dispatch(func() {
-			result = w.window.Dialog(webview.DialogTypeSave, 0, "Save file", "")
+			result = w.window.Dialog(wv.DialogTypeSave, 0, "Save file", "")
 			wg.Done()
 		})
 	}()
@@ -273,18 +287,19 @@ func (w *webViewRenderer) SelectSaveFile() string {
 }
 
 // Callback sends a callback to the frontend
-func (w *webViewRenderer) Callback(data string) error {
+func (w *WebView) Callback(data string) error {
-	callbackCMD := fmt.Sprintf("window.wails._.callback('%s');", data)
+	callbackCMD := fmt.Sprintf("window.wails._.Callback('%s');", data)
 	return w.evalJS(callbackCMD)
 }
 
-func (w *webViewRenderer) NotifyEvent(event *eventData) error {
+// NotifyEvent notifies the frontend about a backend runtime event
+func (w *WebView) NotifyEvent(event *messages.EventData) error {
 
 	// Look out! Nils about!
 	var err error
 	if event == nil {
-		err = fmt.Errorf("Sent nil event to renderer.webViewRenderer")
+		err = fmt.Errorf("Sent nil event to renderer.WebView")
-		logger.Error(err)
+		w.log.Error(err.Error())
 		return err
 	}
 
@@ -301,13 +316,13 @@ func (w *webViewRenderer) NotifyEvent(event *eventData) error {
 		}
 	}
 
-	message := fmt.Sprintf("wails._.notify('%s','%s')", event.Name, data)
+	message := fmt.Sprintf("wails._.Notify('%s','%s')", event.Name, data)
 	return w.evalJS(message)
 }
 
-// Window
+// Fullscreen makes the main window go fullscreen
-func (w *webViewRenderer) Fullscreen() {
+func (w *WebView) Fullscreen() {
-	if w.config.Resizable == false {
+	if w.config.GetResizable() == false {
 		w.log.Warn("Cannot call Fullscreen() - App.Resizable = false")
 		return
 	}
@@ -316,8 +331,9 @@ func (w *webViewRenderer) Fullscreen() {
 	})
 }
 
-func (w *webViewRenderer) UnFullscreen() {
+// UnFullscreen returns the window to the position prior to a fullscreen call
-	if w.config.Resizable == false {
+func (w *WebView) UnFullscreen() {
+	if w.config.GetResizable() == false {
 		w.log.Warn("Cannot call UnFullscreen() - App.Resizable = false")
 		return
 	}
@@ -326,13 +342,15 @@ func (w *webViewRenderer) UnFullscreen() {
 	})
 }
 
-func (w *webViewRenderer) SetTitle(title string) {
+// SetTitle sets the window title
+func (w *WebView) SetTitle(title string) {
 	w.window.Dispatch(func() {
 		w.window.SetTitle(title)
 	})
 }
 
-func (w *webViewRenderer) Close() {
+// Close closes the window
+func (w *WebView) Close() {
 	w.window.Dispatch(func() {
 		w.window.Terminate()
 	})

lib/renderer/webview/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2017 Serge Zaitsev
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

lib/renderer/webview/webview.go

@@ -0,0 +1,372 @@
+// Package wails implements Go bindings to https://github.com/zserge/webview C library.
+// It is a modified version of webview.go from that repository
+
+// Bindings closely repeat the C APIs and include both, a simplified
+// single-function API to just open a full-screen webview window, and a more
+// advanced and featureful set of APIs, including Go-to-JavaScript bindings.
+//
+// The library uses gtk-webkit, Cocoa/Webkit and MSHTML (IE8..11) as a browser
+// engine and supports Linux, MacOS and Windows 7..10 respectively.
+//
+package webview
+
+/*
+#cgo linux openbsd freebsd CFLAGS: -DWEBVIEW_GTK=1
+#cgo linux openbsd freebsd pkg-config: gtk+-3.0 webkit2gtk-4.0
+
+#cgo windows CFLAGS: -DWEBVIEW_WINAPI=1
+#cgo windows LDFLAGS: -lole32 -lcomctl32 -loleaut32 -luuid -lgdi32
+
+#cgo darwin CFLAGS: -DWEBVIEW_COCOA=1 -x objective-c
+#cgo darwin LDFLAGS: -framework Cocoa -framework WebKit
+
+#include <stdlib.h>
+#include <stdint.h>
+#define WEBVIEW_STATIC
+#define WEBVIEW_IMPLEMENTATION
+#include "webview.h"
+
+extern void _webviewExternalInvokeCallback(void *, void *);
+
+static inline void CgoWebViewFree(void *w) {
+	free((void *)((struct webview *)w)->title);
+	free((void *)((struct webview *)w)->url);
+	free(w);
+}
+
+static inline void *CgoWebViewCreate(int width, int height, char *title, char *url, int resizable, int debug) {
+	struct webview *w = (struct webview *) calloc(1, sizeof(*w));
+	w->width = width;
+	w->height = height;
+	w->title = title;
+	w->url = url;
+	w->resizable = resizable;
+	w->debug = debug;
+	w->external_invoke_cb = (webview_external_invoke_cb_t) _webviewExternalInvokeCallback;
+	if (webview_init(w) != 0) {
+		CgoWebViewFree(w);
+		return NULL;
+	}
+	return (void *)w;
+}
+
+static inline int CgoWebViewLoop(void *w, int blocking) {
+	return webview_loop((struct webview *)w, blocking);
+}
+
+static inline void CgoWebViewTerminate(void *w) {
+	webview_terminate((struct webview *)w);
+}
+
+static inline void CgoWebViewExit(void *w) {
+	webview_exit((struct webview *)w);
+}
+
+static inline void CgoWebViewSetTitle(void *w, char *title) {
+	webview_set_title((struct webview *)w, title);
+}
+
+static inline void CgoWebViewSetFullscreen(void *w, int fullscreen) {
+	webview_set_fullscreen((struct webview *)w, fullscreen);
+}
+
+static inline void CgoWebViewSetColor(void *w, uint8_t r, uint8_t g, uint8_t b, uint8_t a) {
+	webview_set_color((struct webview *)w, r, g, b, a);
+}
+
+static inline void CgoDialog(void *w, int dlgtype, int flags,
+		char *title, char *arg, char *res, size_t ressz) {
+	webview_dialog(w, dlgtype, flags,
+		(const char*)title, (const char*) arg, res, ressz);
+}
+
+static inline int CgoWebViewEval(void *w, char *js) {
+	return webview_eval((struct webview *)w, js);
+}
+
+static inline void CgoWebViewInjectCSS(void *w, char *css) {
+	webview_inject_css((struct webview *)w, css);
+}
+
+extern void _webviewDispatchGoCallback(void *);
+static inline void _webview_dispatch_cb(struct webview *w, void *arg) {
+	_webviewDispatchGoCallback(arg);
+}
+static inline void CgoWebViewDispatch(void *w, uintptr_t arg) {
+	webview_dispatch((struct webview *)w, _webview_dispatch_cb, (void *)arg);
+}
+*/
+import "C"
+import (
+	"errors"
+	"runtime"
+	"sync"
+	"unsafe"
+)
+
+func init() {
+	// Ensure that main.main is called from the main thread
+	runtime.LockOSThread()
+}
+
+// Open is a simplified API to open a single native window with a full-size webview in
+// it. It can be helpful if you want to communicate with the core app using XHR
+// or WebSockets (as opposed to using JavaScript bindings).
+//
+// Window appearance can be customized using title, width, height and resizable parameters.
+// URL must be provided and can user either a http or https protocol, or be a
+// local file:// URL. On some platforms "data:" URLs are also supported
+// (Linux/MacOS).
+func Open(title, url string, w, h int, resizable bool) error {
+	titleStr := C.CString(title)
+	defer C.free(unsafe.Pointer(titleStr))
+	urlStr := C.CString(url)
+	defer C.free(unsafe.Pointer(urlStr))
+	resize := C.int(0)
+	if resizable {
+		resize = C.int(1)
+	}
+
+	r := C.webview(titleStr, urlStr, C.int(w), C.int(h), resize)
+	if r != 0 {
+		return errors.New("failed to create webview")
+	}
+	return nil
+}
+
+// ExternalInvokeCallbackFunc is a function type that is called every time
+// "window.external.invoke()" is called from JavaScript. Data is the only
+// obligatory string parameter passed into the "invoke(data)" function from
+// JavaScript. To pass more complex data serialized JSON or base64 encoded
+// string can be used.
+type ExternalInvokeCallbackFunc func(w WebView, data string)
+
+// Settings is a set of parameters to customize the initial WebView appearance
+// and behavior. It is passed into the webview.New() constructor.
+type Settings struct {
+	// WebView main window title
+	Title string
+	// URL to open in a webview
+	URL string
+	// Window width in pixels
+	Width int
+	// Window height in pixels
+	Height int
+	// Allows/disallows window resizing
+	Resizable bool
+	// Enable debugging tools (Linux/BSD/MacOS, on Windows use Firebug)
+	Debug bool
+	// A callback that is executed when JavaScript calls "window.external.invoke()"
+	ExternalInvokeCallback ExternalInvokeCallbackFunc
+}
+
+// WebView is an interface that wraps the basic methods for controlling the UI
+// loop, handling multithreading and providing JavaScript bindings.
+type WebView interface {
+	// Run() starts the main UI loop until the user closes the webview window or
+	// Terminate() is called.
+	Run()
+	// Loop() runs a single iteration of the main UI.
+	Loop(blocking bool) bool
+	// SetTitle() changes window title. This method must be called from the main
+	// thread only. See Dispatch() for more details.
+	SetTitle(title string)
+	// SetFullscreen() controls window full-screen mode. This method must be
+	// called from the main thread only. See Dispatch() for more details.
+	SetFullscreen(fullscreen bool)
+	// SetColor() changes window background color. This method must be called from
+	// the main thread only. See Dispatch() for more details.
+	SetColor(r, g, b, a uint8)
+	// Eval() evaluates an arbitrary JS code inside the webview. This method must
+	// be called from the main thread only. See Dispatch() for more details.
+	Eval(js string) error
+	// InjectJS() injects an arbitrary block of CSS code using the JS API. This
+	// method must be called from the main thread only. See Dispatch() for more
+	// details.
+	InjectCSS(css string)
+	// Dialog() opens a system dialog of the given type and title. String
+	// argument can be provided for certain dialogs, such as alert boxes. For
+	// alert boxes argument is a message inside the dialog box.
+	Dialog(dlgType DialogType, flags int, title string, arg string) string
+	// Terminate() breaks the main UI loop. This method must be called from the main thread
+	// only. See Dispatch() for more details.
+	Terminate()
+	// Dispatch() schedules some arbitrary function to be executed on the main UI
+	// thread. This may be helpful if you want to run some JavaScript from
+	// background threads/goroutines, or to terminate the app.
+	Dispatch(func())
+	// Exit() closes the window and cleans up the resources. Use Terminate() to
+	// forcefully break out of the main UI loop.
+	Exit()
+}
+
+// DialogType is an enumeration of all supported system dialog types
+type DialogType int
+
+const (
+	// DialogTypeOpen is a system file open dialog
+	DialogTypeOpen DialogType = iota
+	// DialogTypeSave is a system file save dialog
+	DialogTypeSave
+	// DialogTypeAlert is a system alert dialog (message box)
+	DialogTypeAlert
+)
+
+const (
+	// DialogFlagFile is a normal file picker dialog
+	DialogFlagFile = C.WEBVIEW_DIALOG_FLAG_FILE
+	// DialogFlagDirectory is an open directory dialog
+	DialogFlagDirectory = C.WEBVIEW_DIALOG_FLAG_DIRECTORY
+	// DialogFlagInfo is an info alert dialog
+	DialogFlagInfo = C.WEBVIEW_DIALOG_FLAG_INFO
+	// DialogFlagWarning is a warning alert dialog
+	DialogFlagWarning = C.WEBVIEW_DIALOG_FLAG_WARNING
+	// DialogFlagError is an error dialog
+	DialogFlagError = C.WEBVIEW_DIALOG_FLAG_ERROR
+)
+
+var (
+	m     sync.Mutex
+	index uintptr
+	fns   = map[uintptr]func(){}
+	cbs   = map[WebView]ExternalInvokeCallbackFunc{}
+)
+
+type webview struct {
+	w unsafe.Pointer
+}
+
+var _ WebView = &webview{}
+
+func boolToInt(b bool) int {
+	if b {
+		return 1
+	}
+	return 0
+}
+
+// NewWebview creates and opens a new webview window using the given settings. The
+// returned object implements the WebView interface. This function returns nil
+// if a window can not be created.
+func NewWebview(settings Settings) WebView {
+	if settings.Width == 0 {
+		settings.Width = 640
+	}
+	if settings.Height == 0 {
+		settings.Height = 480
+	}
+	if settings.Title == "" {
+		settings.Title = "WebView"
+	}
+	w := &webview{}
+	w.w = C.CgoWebViewCreate(C.int(settings.Width), C.int(settings.Height),
+		C.CString(settings.Title), C.CString(settings.URL),
+		C.int(boolToInt(settings.Resizable)), C.int(boolToInt(settings.Debug)))
+	m.Lock()
+	if settings.ExternalInvokeCallback != nil {
+		cbs[w] = settings.ExternalInvokeCallback
+	} else {
+		cbs[w] = func(w WebView, data string) {}
+	}
+	m.Unlock()
+	return w
+}
+
+func (w *webview) Loop(blocking bool) bool {
+	block := C.int(0)
+	if blocking {
+		block = 1
+	}
+	return C.CgoWebViewLoop(w.w, block) == 0
+}
+
+func (w *webview) Run() {
+	for w.Loop(true) {
+	}
+}
+
+func (w *webview) Exit() {
+	C.CgoWebViewExit(w.w)
+}
+
+func (w *webview) Dispatch(f func()) {
+	m.Lock()
+	for ; fns[index] != nil; index++ {
+	}
+	fns[index] = f
+	m.Unlock()
+	C.CgoWebViewDispatch(w.w, C.uintptr_t(index))
+}
+
+func (w *webview) SetTitle(title string) {
+	p := C.CString(title)
+	defer C.free(unsafe.Pointer(p))
+	C.CgoWebViewSetTitle(w.w, p)
+}
+
+func (w *webview) SetColor(r, g, b, a uint8) {
+	C.CgoWebViewSetColor(w.w, C.uint8_t(r), C.uint8_t(g), C.uint8_t(b), C.uint8_t(a))
+}
+
+func (w *webview) SetFullscreen(fullscreen bool) {
+	C.CgoWebViewSetFullscreen(w.w, C.int(boolToInt(fullscreen)))
+}
+
+func (w *webview) Dialog(dlgType DialogType, flags int, title string, arg string) string {
+	const maxPath = 4096
+	titlePtr := C.CString(title)
+	defer C.free(unsafe.Pointer(titlePtr))
+	argPtr := C.CString(arg)
+	defer C.free(unsafe.Pointer(argPtr))
+	resultPtr := (*C.char)(C.calloc((C.size_t)(unsafe.Sizeof((*C.char)(nil))), (C.size_t)(maxPath)))
+	defer C.free(unsafe.Pointer(resultPtr))
+	C.CgoDialog(w.w, C.int(dlgType), C.int(flags), titlePtr,
+		argPtr, resultPtr, C.size_t(maxPath))
+	return C.GoString(resultPtr)
+}
+
+func (w *webview) Eval(js string) error {
+	p := C.CString(js)
+	defer C.free(unsafe.Pointer(p))
+	switch C.CgoWebViewEval(w.w, p) {
+	case -1:
+		return errors.New("evaluation failed")
+	}
+	return nil
+}
+
+func (w *webview) InjectCSS(css string) {
+	p := C.CString(css)
+	defer C.free(unsafe.Pointer(p))
+	C.CgoWebViewInjectCSS(w.w, p)
+}
+
+func (w *webview) Terminate() {
+	C.CgoWebViewTerminate(w.w)
+}
+
+//export _webviewDispatchGoCallback
+func _webviewDispatchGoCallback(index unsafe.Pointer) {
+	var f func()
+	m.Lock()
+	f = fns[uintptr(index)]
+	delete(fns, uintptr(index))
+	m.Unlock()
+	f()
+}
+
+//export _webviewExternalInvokeCallback
+func _webviewExternalInvokeCallback(w unsafe.Pointer, data unsafe.Pointer) {
+	m.Lock()
+	var (
+		cb ExternalInvokeCallbackFunc
+		wv WebView
+	)
+	for wv, cb = range cbs {
+		if wv.(*webview).w == w {
+			break
+		}
+	}
+	m.Unlock()
+	cb(wv, C.GoString((*C.char)(data)))
+}

log.go

@@ -1,42 +0,0 @@
-package wails
-
-import (
-	"os"
-	"strings"
-
-	log "github.com/sirupsen/logrus"
-)
-
-// Global logger reference
-var logger = log.New()
-
-// Fields is used by the customLogger object to output
-// fields along with a message
-type Fields map[string]interface{}
-
-// Default options for the global logger
-func init() {
-	logger.SetOutput(os.Stdout)
-	logger.SetLevel(log.DebugLevel)
-}
-
-// Sets the log level to the given level
-func setLogLevel(level string) {
-	switch strings.ToLower(level) {
-	case "info":
-		logger.SetLevel(log.InfoLevel)
-	case "debug":
-		logger.SetLevel(log.DebugLevel)
-	case "warn":
-		logger.SetLevel(log.WarnLevel)
-	case "error":
-		logger.SetLevel(log.ErrorLevel)
-	case "fatal":
-		logger.SetLevel(log.FatalLevel)
-	case "panic":
-		logger.SetLevel(log.PanicLevel)
-	default:
-		logger.SetLevel(log.DebugLevel)
-		logger.Warnf("Log level '%s' not recognised. Setting to Debug.", level)
-	}
-}

runtime.go

@@ -1,22 +1,32 @@
 package wails
 
+import (
+	"github.com/wailsapp/wails/lib/interfaces"
+	"github.com/wailsapp/wails/lib/logger"
+	"github.com/wailsapp/wails/runtime"
+)
+
+// CustomLogger type alias
+type CustomLogger = logger.CustomLogger
+
 // Runtime is the Wails Runtime Interface, given to a user who has defined the WailsInit method
 type Runtime struct {
-	Events     *RuntimeEvents
+	Events     *runtime.Events
-	Log        *RuntimeLog
+	Log        *runtime.Log
-	Dialog     *RuntimeDialog
+	Dialog     *runtime.Dialog
-	Window     *RuntimeWindow
+	Window     *runtime.Window
-	Browser    *RuntimeBrowser
+	Browser    *runtime.Browser
-	FileSystem *RuntimeFileSystem
+	FileSystem *runtime.FileSystem
 }
 
-func newRuntime(eventManager *eventManager, renderer Renderer) *Runtime {
+// NewRuntime creates a new Runtime struct
+func NewRuntime(eventManager interfaces.EventManager, renderer interfaces.Renderer) *Runtime {
 	return &Runtime{
-		Events:     newRuntimeEvents(eventManager),
+		Events:     runtime.NewEvents(eventManager),
-		Log:        newRuntimeLog(),
+		Log:        runtime.NewLog(),
-		Dialog:     newRuntimeDialog(renderer),
+		Dialog:     runtime.NewDialog(renderer),
-		Window:     newRuntimeWindow(renderer),
+		Window:     runtime.NewWindow(renderer),
-		Browser:    newRuntimeBrowser(),
+		Browser:    runtime.NewBrowser(),
-		FileSystem: newRuntimeFileSystem(),
+		FileSystem: runtime.NewFileSystem(),
 	}
 }

runtime/assets/bridge.js

@@ -1,21 +1,15 @@
 /*
-    Wails Bridge (c) 2019-present Lea Anthony
+ _       __      _ __    
-
+| |     / /___ _(_) /____
-    This library creates a bridge between your application
+| | /| / / __ `/ / / ___/
-    and the frontend, allowing you to develop your app using 
+| |/ |/ / /_/ / / (__  ) 
-    standard tooling (browser extensions, live reload, etc). 
+|__/|__/\__,_/_/_/____/  
-
+The lightweight framework for web-like apps
-    Usage:
+(c) Lea Anthony 2019-present
-    ```
-    import Bridge from "./wailsbridge";
-    Bridge.Start(startApp);
-    ```
-
-    The given callback (startApp in the example) will be called
-    when the bridge has successfully initialised. It passes the
-    window.wails object back, in case it is not accessible directly.
 */
+/* jshint esversion: 6 */
 
+function init() {
 	// Bridge object
 	window.wailsbridge = {
 		reconnectOverlay: null,
@@ -38,6 +32,7 @@ window.wailsbridge = {
 			);
 		}
 	};
+}
 
 // Adapted from webview - thanks zserge!
 function injectCSS(css) {
@@ -184,12 +179,12 @@ function startBridge() {
 		case 'b':
 			var binding = message.data.slice(1);
 			//log("Binding: " + binding)
-			window.wails._.newBinding(binding);
+			window.wails._.NewBinding(binding);
 			break;
 			// Call back
 		case 'c':
 			var callbackData = message.data.slice(1);
-			window.wails._.callback(callbackData);
+			window.wails._.Callback(callbackData);
 			break;
 		default:
 			window.wails.Log.Error('Unknown message type received: ' + message.data[0]);
@@ -203,14 +198,20 @@ function startBridge() {
 	connect();
 }
 
-export default {
+function start(callback) {
-	// The main function
+
-	// Passes the main Wails object to the callback if given.
+	// Set up the bridge
-	Start: function (callback) {
+	init();
+
 	// Save the callback
 	window.wailsbridge.callback = callback;
 
 	// Start Bridge
 	startBridge();
 }
-};
+
+function Init(callback) {
+	start(callback);
+}
+
+module.exports = Init;

runtime/assets/default.html

@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+  <meta charset="utf-8">
+  <meta http-equiv="X-UA-Compatible" content="IE=edge">
+</head>
+
+<body>
+  <div id="app"></div>
+  <script type="text/javascript">function AddScript(js, callbackID) {
+      var script = document.createElement('script');
+      script.text = js;
+      document.body.appendChild(script);
+    }</script>
+</body>
+
+</html>

runtime/assets/wails.js

@@ -0,0 +1 @@
+!function(n){var t={};function e(r){if(t[r])return t[r].exports;var o=t[r]={i:r,l:!1,exports:{}};return n[r].call(o.exports,o,o.exports,e),o.l=!0,o.exports}e.m=n,e.c=t,e.d=function(n,t,r){e.o(n,t)||Object.defineProperty(n,t,{enumerable:!0,get:r})},e.r=function(n){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(n,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(n,"__esModule",{value:!0})},e.t=function(n,t){if(1&t&&(n=e(n)),8&t)return n;if(4&t&&"object"==typeof n&&n&&n.__esModule)return n;var r=Object.create(null);if(e.r(r),Object.defineProperty(r,"default",{enumerable:!0,value:n}),2&t&&"string"!=typeof n)for(var o in n)e.d(r,o,function(t){return n[t]}.bind(null,o));return r},e.n=function(n){var t=n&&n.__esModule?function(){return n.default}:function(){return n};return e.d(t,"a",t),t},e.o=function(n,t){return Object.prototype.hasOwnProperty.call(n,t)},e.p="",e(e.s=0)}([function(n,t,e){"use strict";e.r(t);var r={};e.r(r),e.d(r,"Debug",function(){return c}),e.d(r,"Info",function(){return u}),e.d(r,"Warning",function(){return l}),e.d(r,"Error",function(){return f}),e.d(r,"Fatal",function(){return d});var o={};function i(n,t,e){var r={type:n,callbackID:e,payload:t};!function(n){window.external.invoke(n)}(JSON.stringify(r))}function a(n,t){i("log",{level:n,message:t})}function c(n){a("debug",n)}function u(n){a("info",n)}function l(n){a("warning",n)}function f(n){a("error",n)}function d(n){a("fatal",n)}e.r(o),e.d(o,"OpenURL",function(){return y}),e.d(o,"OpenFile",function(){return g});var s,p={};function v(n,t,e){return null!=e&&null!=e||(e=0),new Promise(function(r,o){var a;do{a=n+"-"+s()}while(p[a]);if(e>0)var c=setTimeout(function(){o(Error("Call to "+n+" timed out. Request ID: "+a))},e);p[a]={timeoutHandle:c,reject:o,resolve:r};try{i("call",{bindingName:n,data:JSON.stringify(t)},a)}catch(n){console.error(n)}})}function w(n,t){return v(".wails."+n,t)}function y(n){return w("Browser.OpenURL",n)}function g(n){return w("Browser.OpenFile",n)}s=window.crypto?function(){var n=new Uint32Array(1);return window.crypto.getRandomValues(n)[0]}:function(){return 9007199254740991*Math.random()};var m=function n(t,e){!function(n,t){if(!(n instanceof t))throw new TypeError("Cannot call a class as a function")}(this,n),e=e||-1,this.Callback=function(n){return t.apply(null,n),-1!==e&&0===(e-=1)}},b={};function h(n,t,e){b[n]=b[n]||[];var r=new m(t,e);b[n].push(r)}function O(n){i("event",{name:n,data:JSON.stringify([].slice.apply(arguments).slice(1))})}var S={};function j(n){try{return new Function("var "+n),!0}catch(n){return!1}}function k(){return(k=Object.assign||function(n){for(var t=1;t<arguments.length;t++){var e=arguments[t];for(var r in e)Object.prototype.hasOwnProperty.call(e,r)&&(n[r]=e[r])}return n}).apply(this,arguments)}window.backend={},e.d(t,"Init",function(){return N}),window.wails=window.wails||{},window.backend={};var E={NewBinding:function(n){var t=[].concat(n.split(".").splice(1)),e=window.backend;if(t.length>1)for(var r=0;r<t.length-1;r+=1){var o=t[r];if(!j(o))return new Error("".concat(o," is not a valid javascript identifier."));e[o]||(e[o]={}),e=e[o]}var i=t.pop();if(!j(i))return new Error("".concat(i," is not a valid javascript identifier."));e[i]=function(){var t=0;function e(){var e=[].slice.call(arguments);return v(n,e,t)}return e.setTimeout=function(n){t=n},e.getTimeout=function(){return t},e}()},Callback:function(n){var t;n=decodeURIComponent(n.replace(/\s+/g,"").replace(/[0-9a-f]{2}/g,"%$&"));try{t=JSON.parse(n)}catch(t){var e="Invalid JSON passed to callback: ".concat(t.message,". Message: ").concat(n);throw c(e),new Error(e)}var r=t.callbackid,o=p[r];if(!o){var i="Callback '".concat(r,"' not registed!!!");throw console.error(i),new Error(i)}clearTimeout(o.timeoutHandle),delete p[r],t.error?o.reject(t.error):o.resolve(t.data)},Notify:function(n,t){if(b[n]){for(var e=b[n].slice(),r=0;r<b[n].length;r+=1){var o=b[n][r],i=[];if(t)try{i=JSON.parse(t)}catch(t){f("Invalid JSON data sent to notify. Event name = "+n)}o.Callback(i)&&e.splice(r,1)}b[n]=e}},AddScript:function(n,t){var e=document.createElement("script");e.text=n,document.body.appendChild(e),t&&O(t)},InjectCSS:function(n){var t=document.createElement("style");t.setAttribute("type","text/css"),t.styleSheet?t.styleSheet.cssText=n:t.appendChild(document.createTextNode(n)),(document.head||document.getElementsByTagName("head")[0]).appendChild(t)},Init:N},C={Log:r,Browser:o,Events:{On:function(n,t){h(n,t)},OnMultiple:h,Emit:O,Heartbeat:function(n,t,e){var r=null;S[n]=function(){clearInterval(r),e()},r=setInterval(function(){O(n)},t)},Acknowledge:function(n){if(!S[n])throw new f("Cannot acknowledge unknown heartbeat '".concat(n,"'"));S[n]()}},_:E};function N(n){n()}k(window.wails,C),O("wails:loaded")}]);

runtime/browser.go

@@ -0,0 +1,21 @@
+package runtime
+
+import "github.com/pkg/browser"
+
+// Browser exposes browser methods to the runtime
+type Browser struct{}
+
+// NewBrowser creates a new runtime Browser struct
+func NewBrowser() *Browser {
+	return &Browser{}
+}
+
+// OpenURL opens the given url in the system's default browser
+func (r *Browser) OpenURL(url string) error {
+	return browser.OpenURL(url)
+}
+
+// OpenFile opens the given file in the system's default browser
+func (r *Browser) OpenFile(filePath string) error {
+	return browser.OpenFile(filePath)
+}

runtime/dialog.go

@@ -0,0 +1,30 @@
+package runtime
+
+import "github.com/wailsapp/wails/lib/interfaces"
+
+// Dialog exposes an interface to native dialogs
+type Dialog struct {
+	renderer interfaces.Renderer
+}
+
+// NewDialog creates a new Dialog struct
+func NewDialog(renderer interfaces.Renderer) *Dialog {
+	return &Dialog{
+		renderer: renderer,
+	}
+}
+
+// SelectFile prompts the user to select a file
+func (r *Dialog) SelectFile() string {
+	return r.renderer.SelectFile()
+}
+
+// SelectDirectory prompts the user to select a directory
+func (r *Dialog) SelectDirectory() string {
+	return r.renderer.SelectDirectory()
+}
+
+// SelectSaveFile prompts the user to select a file for saving
+func (r *Dialog) SelectSaveFile() string {
+	return r.renderer.SelectSaveFile()
+}

runtime/events.go

@@ -0,0 +1,25 @@
+package runtime
+
+import "github.com/wailsapp/wails/lib/interfaces"
+
+// Events exposes the events interface
+type Events struct {
+	eventManager interfaces.EventManager
+}
+
+// NewEvents creates a new Events struct
+func NewEvents(eventManager interfaces.EventManager) *Events {
+	return &Events{
+		eventManager: eventManager,
+	}
+}
+
+// On pass through
+func (r *Events) On(eventName string, callback func(optionalData ...interface{})) {
+	r.eventManager.On(eventName, callback)
+}
+
+// Emit pass through
+func (r *Events) Emit(eventName string, optionalData ...interface{}) {
+	r.eventManager.Emit(eventName, optionalData...)
+}

runtime/filesystem.go

@@ -0,0 +1,16 @@
+package runtime
+
+import homedir "github.com/mitchellh/go-homedir"
+
+// FileSystem exposes file system utilities to the runtime
+type FileSystem struct {}
+
+// NewFileSystem creates a new FileSystem struct
+func NewFileSystem() *FileSystem {
+	return &FileSystem{}
+}
+
+// HomeDir returns the user's home directory
+func (r *FileSystem) HomeDir() (string, error) {
+	return homedir.Dir()
+}

runtime/js/.eslintrc

@@ -0,0 +1,31 @@
+{
+    "env": {
+        "browser": true,
+        "es6": true,
+        "amd": true,
+        "node": true,
+    },
+    "extends": "eslint:recommended",
+    "parserOptions": {
+        "ecmaVersion": 2016,
+        "sourceType": "module",
+    },
+    "rules": {
+        "indent": [
+            "error",
+            "tab"
+        ],
+        "linebreak-style": [
+            "error",
+            "unix"
+        ],
+        "quotes": [
+            "error",
+            "single"
+        ],
+        "semi": [
+            "error",
+            "always"
+        ]
+    }
+}

runtime/js/babel.config.js

@@ -0,0 +1,22 @@
+/* eslint-disable */
+
+module.exports = function (api) {
+  api.cache(true);
+
+  const presets = [
+    [
+      "@babel/preset-env",
+      {
+        "useBuiltIns": "entry",
+        "corejs": {
+          "version": 3,
+          "proposals": true
+        }
+      }
+    ]
+  ];
+
+  return {
+    presets,
+  };
+}

runtime/js/core/bindings.js

@@ -0,0 +1,94 @@
+/*
+ _       __      _ __    
+| |     / /___ _(_) /____
+| | /| / / __ `/ / / ___/
+| |/ |/ / /_/ / / (__  ) 
+|__/|__/\__,_/_/_/____/  
+The lightweight framework for web-like apps
+(c) Lea Anthony 2019-present
+*/
+/* jshint esversion: 6 */
+
+import { Call } from './calls';
+
+window.backend = {};
+
+/**
+ * Determines if the given identifier is valid Javascript
+ *
+ * @param {boolean} name
+ * @returns
+ */
+function isValidIdentifier(name) {
+	// Don't xss yourself :-)
+	try {
+		new Function('var ' + name);
+		return true;
+	} catch (e) {
+		return false;
+	}
+}
+
+/**
+ * NewBinding creates a new binding from the given binding name
+ *
+ * @export
+ * @param {string} bindingName
+ * @returns
+ */
+// eslint-disable-next-line max-lines-per-function
+export function NewBinding(bindingName) {
+
+	// Get all the sections of the binding
+	var bindingSections = [].concat(bindingName.split('.').splice(1));
+	var pathToBinding = window.backend;
+
+	// Check if we have a path (IE Struct)
+	if (bindingSections.length > 1) {
+		// Iterate over binding sections, adding them to the window.backend object
+		for (let index = 0; index < bindingSections.length-1; index += 1) {
+			const name = bindingSections[index];
+			// Is name a valid javascript identifier?
+			if (!isValidIdentifier(name)) {
+				return new Error(`${name} is not a valid javascript identifier.`);
+			}
+			if (!pathToBinding[name]) {
+				pathToBinding[name] = {};
+			}
+			pathToBinding = pathToBinding[name];
+		}
+	}
+
+	// Get the actual function/method call name
+	const name = bindingSections.pop();
+
+	// Is name a valid javascript identifier?
+	if (!isValidIdentifier(name)) {
+		return new Error(`${name} is not a valid javascript identifier.`);
+	}
+
+	// Add binding call
+	pathToBinding[name] = function () {
+
+		// No timeout by default
+		var timeout = 0;
+
+		// Actual function
+		function dynamic() {
+			var args = [].slice.call(arguments);
+			return Call(bindingName, args, timeout);
+		}
+
+		// Allow setting timeout to function
+		dynamic.setTimeout = function (newTimeout) {
+			timeout = newTimeout;
+		};
+
+		// Allow getting timeout to function
+		dynamic.getTimeout = function () {
+			return timeout;
+		};
+
+		return dynamic;
+	}();
+}

runtime/js/core/browser.js

@@ -0,0 +1,34 @@
+/*
+ _       __      _ __    
+| |     / /___ _(_) /____
+| | /| / / __ `/ / / ___/
+| |/ |/ / /_/ / / (__  ) 
+|__/|__/\__,_/_/_/____/  
+The lightweight framework for web-like apps
+(c) Lea Anthony 2019-present
+*/
+/* jshint esversion: 6 */
+
+import { SystemCall } from './calls';
+
+/**
+ * Opens the given URL in the system browser
+ *
+ * @export
+ * @param {string} url
+ * @returns
+ */
+export function OpenURL(url) {
+	return SystemCall('Browser.OpenURL', url);
+}
+
+/**
+ * Opens the given filename using the system's default file handler
+ *
+ * @export
+ * @param {sting} filename
+ * @returns
+ */
+export function OpenFile(filename) {
+	return SystemCall('Browser.OpenFile', filename);
+}

runtime/js/core/calls.js

@@ -0,0 +1,158 @@
+/*
+ _       __      _ __    
+| |     / /___ _(_) /____
+| | /| / / __ `/ / / ___/
+| |/ |/ / /_/ / / (__  ) 
+|__/|__/\__,_/_/_/____/  
+The lightweight framework for web-like apps
+(c) Lea Anthony 2019-present
+*/
+/* jshint esversion: 6 */
+
+import { Debug } from './log';
+import { SendMessage } from './ipc';
+
+var callbacks = {};
+
+/**
+ * Returns a number from the native browser random function
+ *
+ * @returns number
+ */
+function cryptoRandom() {
+	var array = new Uint32Array(1);
+	return window.crypto.getRandomValues(array)[0];
+}
+
+/**
+ * Returns a number using da old-skool Math.Random
+ * I likes to call it LOLRandom
+ *
+ * @returns number
+ */
+function basicRandom() {
+	return Math.random() * 9007199254740991;
+}
+
+// Pick a random number function based on browser capability
+var randomFunc;
+if (window.crypto) {
+	randomFunc = cryptoRandom;
+} else {
+	randomFunc = basicRandom;
+}
+
+
+
+
+/**
+ * Call sends a message to the backend to call the binding with the
+ * given data. A promise is returned and will be completed when the
+ * backend responds. This will be resolved when the call was successful
+ * or rejected if an error is passed back.
+ * There is a timeout mechanism. If the call doesn't respond in the given
+ * time (in milliseconds) then the promise is rejected.
+ *
+ * @export
+ * @param {string} bindingName
+ * @param {string} data
+ * @param {number=} timeout
+ * @returns
+ */
+export function Call(bindingName, data, timeout) {
+
+	// Timeout infinite by default
+	if (timeout == null || timeout == undefined) {
+		timeout = 0;
+	}
+
+	// Create a promise
+	return new Promise(function (resolve, reject) {
+
+		// Create a unique callbackID
+		var callbackID;
+		do {
+			callbackID = bindingName + '-' + randomFunc();
+		} while (callbacks[callbackID]);
+
+		// Set timeout
+		if (timeout > 0) {
+			var timeoutHandle = setTimeout(function () {
+				reject(Error('Call to ' + bindingName + ' timed out. Request ID: ' + callbackID));
+			}, timeout);
+		}
+
+		// Store callback
+		callbacks[callbackID] = {
+			timeoutHandle: timeoutHandle,
+			reject: reject,
+			resolve: resolve
+		};
+
+		try {
+			const payload = {
+				bindingName: bindingName,
+				data: JSON.stringify(data),
+			};
+
+			// Make the call
+			SendMessage('call', payload, callbackID);
+		} catch (e) {
+			// eslint-disable-next-line
+			console.error(e);
+		}
+	});
+}
+
+
+
+/**
+ * Called by the backend to return data to a previously called
+ * binding invocation
+ *
+ * @export
+ * @param {string} incomingMessage
+ */
+export function Callback(incomingMessage) {
+
+	// Decode the message - Credit: https://stackoverflow.com/a/13865680
+	incomingMessage = decodeURIComponent(incomingMessage.replace(/\s+/g, '').replace(/[0-9a-f]{2}/g, '%$&'));
+
+	// Parse the message
+	var message;
+	try {
+		message = JSON.parse(incomingMessage);
+	} catch (e) {
+		const error = `Invalid JSON passed to callback: ${e.message}. Message: ${incomingMessage}`;
+		Debug(error);
+		throw new Error(error);
+	}
+	var callbackID = message.callbackid;
+	var callbackData = callbacks[callbackID];
+	if (!callbackData) {
+		const error = `Callback '${callbackID}' not registed!!!`;
+		console.error(error); // eslint-disable-line
+		throw new Error(error);
+	}
+	clearTimeout(callbackData.timeoutHandle);
+
+	delete callbacks[callbackID];
+
+	if (message.error) {
+		callbackData.reject(message.error);
+	} else {
+		callbackData.resolve(message.data);
+	}
+}
+
+/**
+ * SystemCall is used to call wails methods from the frontend
+ *
+ * @export
+ * @param {string} method
+ * @param {any[]=} data
+ * @returns
+ */
+export function SystemCall(method, data) {
+	return Call('.wails.' + method, data);
+}

runtime/js/core/events.js

@@ -0,0 +1,194 @@
+/*
+ _       __      _ __    
+| |     / /___ _(_) /____
+| | /| / / __ `/ / / ___/
+| |/ |/ / /_/ / / (__  ) 
+|__/|__/\__,_/_/_/____/  
+The lightweight framework for web-like apps
+(c) Lea Anthony 2019-present
+*/
+/* jshint esversion: 6 */
+
+import { Error } from './log';
+import { SendMessage } from './ipc';
+
+// Defines a single listener with a maximum number of times to callback
+/**
+ * The Listener class defines a listener! :-)
+ *
+ * @class Listener
+ */
+class Listener {
+	/**
+	 * Creates an instance of Listener.
+	 * @param {function} callback
+	 * @param {number} maxCallbacks
+	 * @memberof Listener
+	 */
+	constructor(callback, maxCallbacks) {
+		// Default of -1 means infinite
+		maxCallbacks = maxCallbacks || -1;
+		// Callback invokes the callback with the given data
+		// Returns true if this listener should be destroyed
+		this.Callback = (data) => {
+			callback.apply(null, data);
+			// If maxCallbacks is infinite, return false (do not destroy)
+			if (maxCallbacks === -1) {
+				return false;
+			}
+			// Decrement maxCallbacks. Return true if now 0, otherwise false
+			maxCallbacks -= 1;
+			return maxCallbacks === 0;
+		};
+	}
+}
+
+var eventListeners = {};
+
+/**
+ * Registers an event listener that will be invoked `maxCallbacks` times before being destroyed
+ *
+ * @export
+ * @param {string} eventName
+ * @param {function} callback
+ * @param {number} maxCallbacks
+ */
+export function OnMultiple(eventName, callback, maxCallbacks) {
+	eventListeners[eventName] = eventListeners[eventName] || [];
+	const thisListener = new Listener(callback, maxCallbacks);
+	eventListeners[eventName].push(thisListener);
+}
+
+/**
+ * Registers an event listener that will be invoked every time the event is emitted
+ *
+ * @export
+ * @param {string} eventName
+ * @param {function} callback
+ */
+export function On(eventName, callback) {
+	OnMultiple(eventName, callback);
+}
+
+/**
+ * Registers an event listener that will be invoked once then destroyed
+ *
+ * @export
+ * @param {string} eventName
+ * @param {function} callback
+ */
+export function Once(eventName, callback) {
+	OnMultiple(eventName, callback, 1);
+}
+
+/**
+ * Notify informs frontend listeners that an event was emitted with the given data
+ *
+ * @export
+ * @param {string} eventName
+ * @param {string} data
+ */
+export function Notify(eventName, data) {
+
+	// Check if we have any listeners for this event
+	if (eventListeners[eventName]) {
+
+		// Keep a list of listener indexes to destroy
+		const newEventListenerList = eventListeners[eventName].slice();
+
+		// Iterate listeners
+		for (let count = 0; count < eventListeners[eventName].length; count += 1) {
+
+			// Get next listener
+			const listener = eventListeners[eventName][count];
+
+			// Parse data if we have it
+			var parsedData = [];
+			if (data) {
+				try {
+					parsedData = JSON.parse(data);
+				} catch (e) {
+					Error('Invalid JSON data sent to notify. Event name = ' + eventName);
+				}
+			}
+			// Do the callback
+			const destroy = listener.Callback(parsedData);
+			if (destroy) {
+				// if the listener indicated to destroy itself, add it to the destroy list
+				newEventListenerList.splice(count, 1);
+			}
+		}
+
+		// Update callbacks with new list of listners
+		eventListeners[eventName] = newEventListenerList;
+	}
+}
+
+/**
+ * Emit an event with the given name and data
+ *
+ * @export
+ * @param {string} eventName
+ */
+export function Emit(eventName) {
+
+	// Calculate the data
+	var data = JSON.stringify([].slice.apply(arguments).slice(1));
+
+	// Notify backend
+	const payload = {
+		name: eventName,
+		data: data,
+	};
+	SendMessage('event', payload);
+}
+
+// Callbacks for the heartbeat calls
+const heartbeatCallbacks = {};
+
+/**
+ * Heartbeat emits the event `eventName`, every `timeInMilliseconds` milliseconds until 
+ * the event is acknowledged via `Event.Acknowledge`. Once this happens, `callback` is invoked ONCE
+ *
+ * @export
+ * @param {string} eventName
+ * @param {number} timeInMilliseconds
+ * @param {function} callback
+ */
+export function Heartbeat(eventName, timeInMilliseconds, callback) {
+
+	// Declare interval variable
+	let interval = null;
+
+	// Setup callback
+	function dynamicCallback() {
+		// Kill interval
+		clearInterval(interval);
+		// Callback
+		callback();
+	}
+
+	// Register callback
+	heartbeatCallbacks[eventName] = dynamicCallback;
+
+	// Start emitting the event
+	interval = setInterval(function () {
+		Emit(eventName);
+	}, timeInMilliseconds);
+}
+
+/**
+ * Acknowledges a heartbeat event by name
+ *
+ * @export
+ * @param {string} eventName
+ */
+export function Acknowledge(eventName) {
+	// If we are waiting for acknowledgement for this event type
+	if (heartbeatCallbacks[eventName]) {
+		// Acknowledge!
+		heartbeatCallbacks[eventName]();
+	} else {
+		throw new Error(`Cannot acknowledge unknown heartbeat '${eventName}'`);
+	}
+}

runtime/js/core/ipc.js

@@ -0,0 +1,37 @@
+/*
+ _       __      _ __    
+| |     / /___ _(_) /____
+| | /| / / __ `/ / / ___/
+| |/ |/ / /_/ / / (__  ) 
+|__/|__/\__,_/_/_/____/  
+The lightweight framework for web-like apps
+(c) Lea Anthony 2019-present
+*/
+/* jshint esversion: 6 */
+
+/**
+ * Invoke sends the given message to the backend
+ *
+ * @param {string} message
+ */
+function Invoke(message) {
+	window.external.invoke(message);
+}
+
+/**
+ * Sends a message to the backend based on the given type, payload and callbackID
+ *
+ * @export
+ * @param {string} type
+ * @param {string} payload
+ * @param {string=} callbackID
+ */
+export function SendMessage(type, payload, callbackID) {
+	const message = {
+		type,
+		callbackID,
+		payload
+	};
+
+	Invoke(JSON.stringify(message));
+}

runtime/js/core/log.js

@@ -0,0 +1,80 @@
+/*
+ _       __      _ __    
+| |     / /___ _(_) /____
+| | /| / / __ `/ / / ___/
+| |/ |/ / /_/ / / (__  ) 
+|__/|__/\__,_/_/_/____/  
+The lightweight framework for web-like apps
+(c) Lea Anthony 2019-present
+*/
+
+/* jshint esversion: 6 */
+
+import { SendMessage } from './ipc';
+
+/**
+ * Sends a log message to the backend with the given level + message
+ *
+ * @param {string} level
+ * @param {string} message
+ */
+function sendLogMessage(level, message) {
+
+	// Log Message
+	const payload = {
+		level: level,
+		message: message,
+	};
+	SendMessage('log', payload);
+}
+
+/**
+ * Log the given debug message with the backend
+ *
+ * @export
+ * @param {string} message
+ */
+export function Debug(message) {
+	sendLogMessage('debug', message);
+}
+
+/**
+ * Log the given info message with the backend
+ *
+ * @export
+ * @param {string} message
+ */
+export function Info(message) {
+	sendLogMessage('info', message);
+}
+
+/**
+ * Log the given warning message with the backend
+ *
+ * @export
+ * @param {string} message
+ */
+export function Warning(message) {
+	sendLogMessage('warning', message);
+}
+
+/**
+ * Log the given error message with the backend
+ *
+ * @export
+ * @param {string} message
+ */
+export function Error(message) {
+	sendLogMessage('error', message);
+}
+
+/**
+ * Log the given fatal message with the backend
+ *
+ * @export
+ * @param {string} message
+ */
+export function Fatal(message) {
+	sendLogMessage('fatal', message);
+}
+

runtime/js/core/main.js

@@ -0,0 +1,55 @@
+/*
+ _       __      _ __    
+| |     / /___ _(_) /____
+| | /| / / __ `/ / / ___/
+| |/ |/ / /_/ / / (__  ) 
+|__/|__/\__,_/_/_/____/  
+The lightweight framework for web-like apps
+(c) Lea Anthony 2019-present
+*/
+/* jshint esversion: 6 */
+import * as Log from './log';
+import * as Browser from './browser';
+import { On, OnMultiple, Emit, Notify, Heartbeat, Acknowledge } from './events';
+import { NewBinding } from './bindings';
+import { Callback } from './calls';
+import { AddScript, InjectCSS } from './utils';
+
+// Initialise global if not already
+window.wails = window.wails || {};
+window.backend = {};
+
+// Setup internal calls
+var internal = {
+	NewBinding,
+	Callback,
+	Notify,
+	AddScript,
+	InjectCSS,
+	Init,
+};
+
+// Setup runtime structure
+var runtime = {
+	Log,
+	Browser,
+	Events: {
+		On,
+		OnMultiple,
+		Emit,
+		Heartbeat,
+		Acknowledge,
+	},
+	_: internal,
+};
+
+// Augment global
+Object.assign(window.wails, runtime);
+
+// Emit loaded event
+Emit('wails:loaded');
+
+// Nothing to init in production
+export function Init(callback) {
+	callback();
+}

runtime/js/core/utils.js

@@ -0,0 +1,34 @@
+/*
+ _       __      _ __    
+| |     / /___ _(_) /____
+| | /| / / __ `/ / / ___/
+| |/ |/ / /_/ / / (__  ) 
+|__/|__/\__,_/_/_/____/  
+The lightweight framework for web-like apps
+(c) Lea Anthony 2019-present
+*/
+/* jshint esversion: 6 */
+
+import { Emit } from './events';
+
+export function AddScript(js, callbackID) {
+	var script = document.createElement('script');
+	script.text = js;
+	document.body.appendChild(script);
+	if (callbackID) {
+		Emit(callbackID);
+	}
+}
+
+// Adapted from webview - thanks zserge!
+export function InjectCSS(css) {
+	var elem = document.createElement('style');
+	elem.setAttribute('type', 'text/css');
+	if (elem.styleSheet) {
+		elem.styleSheet.cssText = css;
+	} else {
+		elem.appendChild(document.createTextNode(css));
+	}
+	var head = document.head || document.getElementsByTagName('head')[0];
+	head.appendChild(elem);
+}

runtime/js/package.json

@@ -0,0 +1,43 @@
+{
+  "name": "wails-runtime",
+  "version": "1.0.0",
+  "description": "The Javascript Wails Runtime",
+  "main": "index.js",
+  "scripts": {
+    "build": "eslint core/ && npm run build:prod",
+    "build:prod": "webpack --env prod --colors",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/wailsapp/runtime.git"
+  },
+  "keywords": [
+    "Wails",
+    "Go",
+    "Javascript",
+    "Runtime"
+  ],
+  "browserslist": [
+    "> 5%",
+    "IE 9"
+  ],
+  "author": "Lea Anthony <lea.anthony@gmail.com>",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/wailsapp/runtime/issues"
+  },
+  "homepage": "https://github.com/wailsapp/runtime#readme",
+  "devDependencies": {
+    "@babel/cli": "^7.5.0",
+    "@babel/core": "^7.5.4",
+    "@babel/plugin-transform-object-assign": "^7.2.0",
+    "@babel/preset-env": "^7.5.4",
+    "babel-loader": "^8.0.6",
+    "babel-preset-minify": "^0.5.0",
+    "core-js": "^3.1.4",
+    "eslint": "^6.2.2",
+    "webpack": "^4.35.3",
+    "webpack-cli": "^3.3.5"
+  }
+}

runtime/js/runtime/.npmignore

@@ -0,0 +1 @@
+bridge.js

runtime/js/runtime/README.md

@@ -0,0 +1,3 @@
+# Wails Runtime
+
+This module is the Javascript runtime library for the [Wails](https://wails.app) framework. It is intended to be installed as part of a [Wails](https://wails.app) project, not a standalone module.

runtime/js/runtime/browser.js

@@ -0,0 +1,37 @@
+/*
+ _       __      _ __    
+| |     / /___ _(_) /____
+| | /| / / __ `/ / / ___/
+| |/ |/ / /_/ / / (__  ) 
+|__/|__/\__,_/_/_/____/  
+The lightweight framework for web-like apps
+(c) Lea Anthony 2019-present
+*/
+/* jshint esversion: 6 */
+
+/**
+ * Opens the given URL in the system browser
+ *
+ * @export
+ * @param {string} url
+ * @returns
+ */
+function OpenURL(url) {
+	return window.wails.Browser.OpenURL(url);
+}
+
+/**
+ * Opens the given filename using the system's default file handler
+ *
+ * @export
+ * @param {sting} filename
+ * @returns
+ */
+function OpenFile(filename) {
+	return window.wails.Browser.OpenFile(filename);
+}
+
+module.exports = {
+	OpenURL,
+	OpenFile
+};

runtime/js/runtime/events.js

@@ -0,0 +1,89 @@
+/*
+ _       __      _ __    
+| |     / /___ _(_) /____
+| | /| / / __ `/ / / ___/
+| |/ |/ / /_/ / / (__  ) 
+|__/|__/\__,_/_/_/____/  
+The lightweight framework for web-like apps
+(c) Lea Anthony 2019-present
+*/
+/* jshint esversion: 6 */
+
+
+/**
+ * Registers an event listener that will be invoked `maxCallbacks` times before being destroyed
+ *
+ * @export
+ * @param {string} eventName
+ * @param {function} callback
+ * @param {number} maxCallbacks
+ */
+function OnMultiple(eventName, callback, maxCallbacks) {
+	window.wails.Events.OnMultiple(eventName, callback, maxCallbacks);
+}
+
+/**
+ * Registers an event listener that will be invoked every time the event is emitted
+ *
+ * @export
+ * @param {string} eventName
+ * @param {function} callback
+ */
+function On(eventName, callback) {
+	OnMultiple(eventName, callback);
+}
+
+/**
+ * Registers an event listener that will be invoked once then destroyed
+ *
+ * @export
+ * @param {string} eventName
+ * @param {function} callback
+ */
+function Once(eventName, callback) {
+	OnMultiple(eventName, callback, 1);
+}
+
+
+/**
+ * Emit an event with the given name and data
+ *
+ * @export
+ * @param {string} eventName
+ */
+function Emit(eventName) {
+	return window.wails.Events.Emit(eventName);
+}
+
+
+/**
+ * Heartbeat emits the event `eventName`, every `timeInMilliseconds` milliseconds until 
+ * the event is acknowledged via `Event.Acknowledge`. Once this happens, `callback` is invoked ONCE
+ *
+ * @export
+ * @param {string} eventName
+ * @param {number} timeInMilliseconds
+ * @param {function} callback
+ */
+function Heartbeat(eventName, timeInMilliseconds, callback) {
+	window.wails.Events.Heartbeat(eventName, timeInMilliseconds, callback);
+}
+
+/**
+ * Acknowledges a heartbeat event by name
+ *
+ * @export
+ * @param {string} eventName 
+ */
+function Acknowledge(eventName) {
+	return window.wails.Events.Acknowledge(eventName);
+}
+
+module.exports = {
+	OnMultiple,
+	On,
+	Once,
+	Emit,
+	Heartbeat,
+	Acknowledge
+};