因各家browser之間存在差異,開發者首先獲取當前browser類型，再調用相應的接口程序。
/**
* return current browser name.*/
private static function getBrowserName():String
{
var browser:String;
//Uses external interface to reach out to browser and grab browser useragent info.
var browserAgent:String = "";
if (ExternalInterface.available)
{
browserAgent = ExternalInterface.call("function getBrowser(){return navigator.userAgent;}");
}
//Determines brand of browser using a find index. If not found indexOf returns (-1).
if (browserAgent != null && browserAgent.indexOf("Firefox") >= 0)
{
browser = "Firefox";
}
else if (browserAgent != null && browserAgent.indexOf("Safari") >= 0)
{
browser = "Safari";
}
else if (browserAgent == null || browserAgent.indexOf("MSIE") >= 0)
{
browser = "IE";
}
else if (browserAgent != null && browserAgent.indexOf("Opera") >= 0)
{
browser = "Opera";
}
else
{
browser = "Undefined";
}
return (browser);
}
打開一個瀏覽器窗口實例:
protected static const WINDOW_OPEN_FUNCTION:String = "window.open";
/**
* Open a new browser window and prevent browser from blocking it.
*
* @param url url to be opened
* @param window window target
* @param features additional features for window.open function
*/
public static function openWindow(url:String, window:String = "_blank", features:String = ""):void
{
var browserName:String = getBrowserName();
if (browserName == "Firefox")
{
ExternalInterface.call(WINDOW_OPEN_FUNCTION, url, window, features);
}
//If IE,
else if (browserName == "IE")
{
ExternalInterface.call("function setWMWindow() {window.open('" + url + "');}");
}
//If Safari
else if (browserName == "Safari")
{
navigateToURL(new URLRequest(url), window);
}
//If Opera
else if (browserName == "Opera")
{
navigateToURL(new URLRequest(url), window);
}
//Otherwise, use Flash's native 'navigateToURL()' function to pop-window.
//This is necessary because Safari 3 no longer works with the above ExternalInterface work-a-round.
else
{
navigateToURL(new URLRequest(url), window);
}
}
