package main import ( "embed" "fmt" "github.com/energye/energy/v2/cef" "github.com/energye/energy/v2/pkgs/assetserve" "github.com/energye/golcl/lcl" "time" ) //go:embed resources var resources embed.FS func main() { //全局初始化 每个应用都必须调用的 cef.GlobalInit(nil, &resources) //创建应用 cefApp := cef.NewApplication() //指定一个URL地址,或本地html文件目录 cef.BrowserWindow.Config.Url = "http://localhost:22022/execute-javascript.html" cef.BrowserWindow.Config.Title = "Energy - execute-javascript" cef.BrowserWindow.Config.IconFS = "resources/icon.ico" //内置http服务链接安全配置 cef.SetBrowserProcessStartAfterCallback(func(b bool) { fmt.Println("主进程启动 创建一个内置http服务") //通过内置http服务加载资源 server := assetserve.NewAssetsHttpServer() server.PORT = 22022 server.AssetsFSName = "resources" //必须设置目录名 server.Assets = &resources go server.StartHttpServer() //定时执行web js go timeTask() }) cef.BrowserWindow.SetBrowserInit(func(event *cef.BrowserEvent, window cef.IBrowserWindow) { window.Chromium().SetOnLoadEnd(func(sender lcl.IObject, browser *cef.ICefBrowser, frame *cef.ICefFrame, httpStatusCode int32) { var jsCode = ` (function(){ console.log("执行"); })(); ` window.Chromium().ExecuteJavaScript(jsCode, "", 0) }) }) //运行应用 cef.Run(cefApp) } //定时执行web js func timeTask() { var param0 = 0 for { //每1秒钟执行一次 time.Sleep(time.Second) info := cef.BrowserWindow.MainWindow() param0++ //调用js中定义的函数GoExecuteJSFunc,并传递参数,但没有返回值 var jsFunc = fmt.Sprintf("GoExecuteJSFunc(%d, '%d')", param0, time.Now().Second()) fmt.Println("GoExecuteJSFunc:", jsFunc) info.Chromium().ExecuteJavaScript(jsFunc, "", 0) } }