如何等待Java小程序在Safari上完成加载?

我使用一个计时器,它会重置并在放弃之前不断检查多次。

<script language="text/javascript" defer>

function performAppletCode(count) {
    var applet = document.getElementById('MyApplet');

    if (!applet.myMethod && count > 0) {
       setTimeout( function() { performAppletCode( --count ); }, 2000 );
    }
    else if (applet.myMethod) {
       // use the applet for something
    }
    else {
       alert( 'applet failed to load' );
    }
}  

performAppletCode( 10 );

</script>               

下面是我编写的一个通用函数:

/* Attempt to load the applet up to "X" times with a delay. If it succeeds, then execute the callback function. */
function WaitForAppletLoad(applet_id, attempts, delay, onSuccessCallback, onFailCallback) {
    //Test
    var to = typeof (document.getElementById(applet_id));
    if (to == "function") {
        onSuccessCallback(); //Go do it.
        return true;
    } else {
        if (attempts == 0) {
            onFailCallback();
            return false;
        } else {
            //Put it back in the hopper.
            setTimeout(function () {
                WaitForAppletLoad(applet_id, --attempts, delay, onSuccessCallback, onFailCallback);
            }, delay);
        }
    }
}

WaitForAppletLoad("fileapplet", 10, 2000, function () {
    document.getElementById("fileapplet").getDirectoriesObject("c:/");
}, function () {
    alert("Sorry, unable to load the local file browser.");
});

不久前,我遇到了一个类似的问题,将MAYSCRIPT添加到applet标记解决了我的问题。

http://www.htmlcodetutorial.com/applets/_APPLET_MAYSCRIPT.html

希望有帮助!