浏览器事件-键盘事件监听
go
package main
import (
"embed"
"fmt"
"github.com/energye/energy/v2/cef"
"github.com/energye/energy/v2/consts"
"github.com/energye/energy/v2/pkgs/assetserve"
"github.com/energye/golcl/lcl"
)
//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/key-event.html"
cef.BrowserWindow.Config.Title = "Energy - Key Event"
cef.BrowserWindow.Config.IconFS = "resources/icon.ico"
//在主窗口初始化回调函数里设置浏览器事件
cef.BrowserWindow.SetBrowserInit(func(event *cef.BrowserEvent, browserWindow cef.IBrowserWindow) {
event.SetOnKeyEvent(func(sender lcl.IObject, browser *cef.ICefBrowser, event *cef.TCefKeyEvent, osEvent *consts.TCefEventHandle, result *bool) {
fmt.Printf("%s KeyEvent:%+v osEvent:%+v\n", string(rune(event.Character)), event, osEvent)
})
browserWindow.Chromium().SetOnPreKeyEvent(func(sender lcl.IObject, browser *cef.ICefBrowser, event *cef.TCefKeyEvent, osEvent *consts.TCefEventHandle) (isKeyboardShortcut, result bool) {
fmt.Printf("%s PreKeyEvent:%+v osEvent:%+v\n", string(rune(event.Character)), event, osEvent)
return false, false
})
})
//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()
})
//运行应用
cef.Run(cefApp)
}html示例代码
html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>cookie</title>
<style>
</style>
<script type="application/javascript">
</script>
</head>
<body style="overflow: hidden;margin: 0px;padding: 0px;">
<textarea style="width: 100%;height: 500px;"></textarea>
</body>
</html>说明
事件监听
go
Chromium().SetOnPreKeyEvent在此事件中监听页面中键盘事件以及键盘组合键