在tornadofx webview 中執行js代碼

import javafx.scene.web.WebView
import tornadofx.*
class WbView:View(){
    lateinit var wb:WebView
    override val root=vbox{
        button("Execute Javascript (Call from JavaFX)"){
            action{
                wb.engine.executeScript("changeBgColor()")
            }
        }
        webview {
            wb=this
            val str="""
                <html>
                <head>
                <script language='javascript'>
                function changeBgColor()  {
                var color= document.getElementById('color').value;
                document.body.style.backgroundColor= color;
                }
                </script>
                </head>
                <body>
                <h2>This is Html content</h2>
                <b>Enter Color:</b>
                <input id='color' value='yellow' />
                <button onclick='changeBgColor();'>Change Bg Color</button>
                </body>
                </html>
            """.trimIndent()
            engine.loadContent(str)
        }
    }
}

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