In the attached flex code, I am trying to call a javascript function in its HTML wrapper. The example is also live at : http://www.cse.epicenterlabs.com/mbm/ajax_api.html The problem I am facing is, that I have to click the button twice to get the desired output. Seems like there is some delay in setting the "output" variable. How could I get the output from the javascript function in one click?
在附加的flex代码中,我试图在其HTML包装器中调用javascript函数。示例也出现在:http://www.cse.epicenterlabs.com/mbm/ajax_api.html我面临的问题是,我必须单击两次按钮才能获得所需的输出。似乎设置“输出”变量有一些延迟。如何通过一次点击获得javascript函数的输出?
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:TextArea x="209" y="139" height="245" width="318" id="text1" fontSize="28"/>
<mx:Script>
<![CDATA[
import mx.rpc.events.ResultEvent;
import flash.external.*;
public function callWrapper():void {
var s:String;
if (ExternalInterface.available) {
var wrapperFunction:String = "initialize";
s = ExternalInterface.call(wrapperFunction,text1.text);
text1.text = s;
} else {
s = "Wrapper not available";
}
trace(s);
}
]]>
</mx:Script>
<mx:Button x="92" y="118" label="Transliterate" click="callWrapper()"/>
</mx:Application>
HTML Wrapper :
HTML包装器:
<!-- saved from url=(0014)about:internet -->
<html lang="en">
<!--
Smart developers always View Source.
This application was built using Adobe Flex, an open source framework
for building rich Internet applications that get delivered via the
Flash Player or to desktops via Adobe AIR.
Learn more about Flex at http://flex.org
// -->
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- BEGIN Browser History required section -->
<link rel="stylesheet" type="text/css" href="history/history.css" />
<!-- END Browser History required section -->
<title></title>
<script src="AC_OETags.js" language="javascript"></script>
<!-- BEGIN Browser History required section -->
<script src="history/history.js" language="javascript"></script>
<!-- END Browser History required section -->
<style>
body { margin: 0px; overflow:hidden }
</style>
<script language="JavaScript" type="text/javascript">
<!--
// -----------------------------------------------------------------------------
// Globals
// Major version of Flash required
var requiredMajorVersion = 9;
// Minor version of Flash required
var requiredMinorVersion = 0;
// Minor version of Flash required
var requiredRevision = 28;
// -----------------------------------------------------------------------------
// -->
</script>
</head>
<body scroll="no">
<script type="text/javascript" src="http://www.google.com/jsapi"></script>
<script type="text/javascript">
google.load("language", "1");
var output;
function initialize(input) {
google.language.transliterate([input], "en", "hi", function(result) {
if (!result.error) {
if (result.transliterations && result.transliterations.length > 0 &&
result.transliterations[0].transliteratedWords.length > 0) {
output = result.transliterations[0].transliteratedWords[0];
}
}
});
return output;
}
</script>
<script language="JavaScript" type="text/javascript">
<!--
// Version check for the Flash Player that has the ability to start Player Product Install (6.0r65)
var hasProductInstall = DetectFlashVer(6, 0, 65);
// Version check based upon the values defined in globals
var hasRequestedVersion = DetectFlashVer(requiredMajorVersion, requiredMinorVersion, requiredRevision);
if ( hasProductInstall && !hasRequestedVersion ) {
// DO NOT MODIFY THE FOLLOWING FOUR LINES
// Location visited after installation is complete if installation is required
var MMPlayerType = (isIE == true) ? "ActiveX" : "PlugIn";
var MMredirectURL = window.location;
document.title = document.title.slice(0, 47) + " - Flash Player Installation";
var MMdoctitle = document.title;
AC_FL_RunContent(
"src", "playerProductInstall",
"FlashVars", "MMredirectURL="+MMredirectURL+'&MMplayerType='+MMPlayerType+'&MMdoctitle='+MMdoctitle+"",
"width", "100%",
"height", "100%",
"align", "middle",
"id", "ajax_api",
"quality", "high",
"bgcolor", "#869ca7",
"name", "ajax_api",
"allowScriptAccess","sameDomain",
"type", "application/x-shockwave-flash",
"pluginspage", "http://www.adobe.com/go/getflashplayer"
);
} else if (hasRequestedVersion) {
// if we've detected an acceptable version
// embed the Flash Content SWF when all tests are passed
AC_FL_RunContent(
"src", "ajax_api",
"width", "100%",
"height", "100%",
"align", "middle",
"id", "ajax_api",
"quality", "high",
"bgcolor", "#869ca7",
"name", "ajax_api",
"allowScriptAccess","sameDomain",
"type", "application/x-shockwave-flash",
"pluginspage", "http://www.adobe.com/go/getflashplayer"
);
} else { // flash is too old or we can't detect the plugin
var alternateContent = 'Alternate HTML content should be placed here. '
+ 'This content requires the Adobe Flash Player. '
+ '<a href=http://www.adobe.com/go/getflash/>Get Flash</a>';
document.write(alternateContent); // insert non-flash content
}
// -->
</script>
<noscript>
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
id="ajax_api" width="100%" height="100%"
codebase="http://fpdownload.macromedia.com/get/flashplayer/current/swflash.cab">
<param name="movie" value="ajax_api.swf" />
<param name="quality" value="high" />
<param name="bgcolor" value="#869ca7" />
<param name="allowScriptAccess" value="sameDomain" />
<embed src="ajax_api.swf" quality="high" bgcolor="#869ca7"
width="100%" height="100%" name="ajax_api" align="middle"
play="true"
loop="false"
quality="high"
allowScriptAccess="sameDomain"
type="application/x-shockwave-flash"
pluginspage="http://www.adobe.com/go/getflashplayer">
</embed>
</object>
</noscript>
</body>
</html>
4 个解决方案
#1
That is because google.language.transliterate is not a synchronous operation. Your initialize function returns even before google.language.transliterate has finished running (which is why you are attaching a callback function to run after it is done).
这是因为google.language.transliterate不是同步操作。即使在google.language.transliterate完成运行之前,您的初始化函数也会返回(这就是为什么要在完成后运行回调函数的原因)。
You need to callback an actionscript function after transliterate is done. Explore ExternalInterface.addCallback() to add an actionscript function callable from javascript.
在完成音译后,您需要回调一个动作脚本函数。探索ExternalInterface.addCallback()以添加可从javascript调用的actionscript函数。
#2
The call to google.language.transliterate in the JavaScript code is asynchronous, that is why it seems like you have to press the button twice. The anonymous function that is passed as the fourth argument doesn't run until some data has been loaded.
JavaScript代码中对google.language.transliterate的调用是异步的,这就是为什么你必须按两次按钮。在加载某些数据之前,作为第四个参数传递的匿名函数不会运行。
Perhaps you should show some kind of loading indicator just before calling google.language.transliterate and then hiding it in the handler? That way you would see when it's loading data.
也许你应该在调用google.language.transliterate然后将其隐藏在处理程序之前显示某种加载指示器?这样你就可以看到它何时加载数据。
#3
You can create a html file using the script and use that inside Flex HTML component.
您可以使用该脚本创建一个html文件,并在Flex HTML组件中使用它。
Example:
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:HTML id="html"
width="100%"
height="100%"
location="{serverIp}/Translit.html"/>
</mx:WindowedApplication>
#4
Thanks guys, it worked. I am attaching the working code here :
谢谢大家,它有效。我在这里附上工作代码:
Flex code : (ajax_api.mxml)
Flex代码:(ajax_api.mxml)
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:TextArea x="209" y="139" height="245" width="318" id="text1" fontSize="28"/>
<mx:Script>
<![CDATA[
import mx.rpc.events.ResultEvent;
import flash.external.*;
public function callWrapper():void {
var s:String;
if (ExternalInterface.available) {
ExternalInterface.addCallback("g", g);
var wrapperFunction:String = "initialize";
ExternalInterface.call(wrapperFunction,text1.text);
} else {
s = "Wrapper not available";
}
trace(s);
}
public function g(str:String):void
{
text1.text = str;
}
]]>
</mx:Script>
<mx:Button x="75" y="50" label="Enter some text and click this button to see the transliteration output" click="callWrapper()" height="37"/>
</mx:Application>
HTML Wrapper :
HTML包装器:
<!-- saved from url=(0014)about:internet -->
<html lang="en">
<!--
Smart developers always View Source.
This application was built using Adobe Flex, an open source framework
for building rich Internet applications that get delivered via the
Flash Player or to desktops via Adobe AIR.
Learn more about Flex at http://flex.org
// -->
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- BEGIN Browser History required section -->
<link rel="stylesheet" type="text/css" href="history/history.css" />
<!-- END Browser History required section -->
<title>ajax_api</title>
<script src="AC_OETags.js" language="javascript"></script>
<!-- BEGIN Browser History required section -->
<script src="history/history.js" language="javascript"></script>
<!-- END Browser History required section -->
<style>
body { margin: 0px; overflow:hidden }
</style>
<script language="JavaScript" type="text/javascript">
<!--
// -----------------------------------------------------------------------------
// Globals
// Major version of Flash required
var requiredMajorVersion = 9;
// Minor version of Flash required
var requiredMinorVersion = 0;
// Minor version of Flash required
var requiredRevision = 28;
// -----------------------------------------------------------------------------
// -->
</script>
</head>
<body scroll="no">
<script type="text/javascript" src="http://www.google.com/jsapi"></script>
<script type="text/javascript">
google.load("language", "1");
function thisMovie(movieName)
{
if(navigator.appName.indexOf("Microsoft")!=-1)
{
alert("microsoft");
return window[movieName];
}
else
{
return document[movieName];
}
}
function initialize(input) {
google.language.transliterate([input], "en", "hi", function(result) {
if (!result.error) {
var container = document.getElementById("transliteration");
if (result.transliterations && result.transliterations.length > 0 &&
result.transliterations[0].transliteratedWords.length > 0) {
output = result.transliterations[0].transliteratedWords[0];
thisMovie("ajax_api").g(output);
}
}
});
}
</script>
<script language="JavaScript" type="text/javascript">
<!--
// Version check for the Flash Player that has the ability to start Player Product Install (6.0r65)
var hasProductInstall = DetectFlashVer(6, 0, 65);
// Version check based upon the values defined in globals
var hasRequestedVersion = DetectFlashVer(requiredMajorVersion, requiredMinorVersion, requiredRevision);
if ( hasProductInstall && !hasRequestedVersion ) {
// DO NOT MODIFY THE FOLLOWING FOUR LINES
// Location visited after installation is complete if installation is required
var MMPlayerType = (isIE == true) ? "ActiveX" : "PlugIn";
var MMredirectURL = window.location;
document.title = document.title.slice(0, 47) + " - Flash Player Installation";
var MMdoctitle = document.title;
AC_FL_RunContent(
"src", "playerProductInstall",
"FlashVars", "MMredirectURL="+MMredirectURL+'&MMplayerType='+MMPlayerType+'&MMdoctitle='+MMdoctitle+"",
"width", "100%",
"height", "100%",
"align", "middle",
"id", "ajax_api",
"quality", "high",
"bgcolor", "#869ca7",
"name", "ajax_api",
"allowScriptAccess","sameDomain",
"type", "application/x-shockwave-flash",
"pluginspage", "http://www.adobe.com/go/getflashplayer"
);
} else if (hasRequestedVersion) {
// if we've detected an acceptable version
// embed the Flash Content SWF when all tests are passed
AC_FL_RunContent(
"src", "ajax_api",
"width", "100%",
"height", "100%",
"align", "middle",
"id", "ajax_api",
"quality", "high",
"bgcolor", "#869ca7",
"name", "ajax_api",
"allowScriptAccess","sameDomain",
"type", "application/x-shockwave-flash",
"pluginspage", "http://www.adobe.com/go/getflashplayer"
);
} else { // flash is too old or we can't detect the plugin
var alternateContent = 'Alternate HTML content should be placed here. '
+ 'This content requires the Adobe Flash Player. '
+ '<a href=http://www.adobe.com/go/getflash/>Get Flash</a>';
document.write(alternateContent); // insert non-flash content
}
// -->
</script>
<noscript>
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
id="ajax_api" width="100%" height="100%"
codebase="http://fpdownload.macromedia.com/get/flashplayer/current/swflash.cab">
<param name="movie" value="ajax_api.swf" />
<param name="quality" value="high" />
<param name="bgcolor" value="#869ca7" />
<param name="allowScriptAccess" value="sameDomain" />
<embed src="ajax_api.swf" quality="high" bgcolor="#869ca7"
width="100%" height="100%" name="ajax_api" align="middle"
play="true"
loop="false"
quality="high"
allowScriptAccess="sameDomain"
type="application/x-shockwave-flash"
pluginspage="http://www.adobe.com/go/getflashplayer">
</embed>
</object>
</noscript>
</body>
</html>
#1
That is because google.language.transliterate is not a synchronous operation. Your initialize function returns even before google.language.transliterate has finished running (which is why you are attaching a callback function to run after it is done).
这是因为google.language.transliterate不是同步操作。即使在google.language.transliterate完成运行之前,您的初始化函数也会返回(这就是为什么要在完成后运行回调函数的原因)。
You need to callback an actionscript function after transliterate is done. Explore ExternalInterface.addCallback() to add an actionscript function callable from javascript.
在完成音译后,您需要回调一个动作脚本函数。探索ExternalInterface.addCallback()以添加可从javascript调用的actionscript函数。
#2
The call to google.language.transliterate in the JavaScript code is asynchronous, that is why it seems like you have to press the button twice. The anonymous function that is passed as the fourth argument doesn't run until some data has been loaded.
JavaScript代码中对google.language.transliterate的调用是异步的,这就是为什么你必须按两次按钮。在加载某些数据之前,作为第四个参数传递的匿名函数不会运行。
Perhaps you should show some kind of loading indicator just before calling google.language.transliterate and then hiding it in the handler? That way you would see when it's loading data.
也许你应该在调用google.language.transliterate然后将其隐藏在处理程序之前显示某种加载指示器?这样你就可以看到它何时加载数据。
#3
You can create a html file using the script and use that inside Flex HTML component.
您可以使用该脚本创建一个html文件,并在Flex HTML组件中使用它。
Example:
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:HTML id="html"
width="100%"
height="100%"
location="{serverIp}/Translit.html"/>
</mx:WindowedApplication>
#4
Thanks guys, it worked. I am attaching the working code here :
谢谢大家,它有效。我在这里附上工作代码:
Flex code : (ajax_api.mxml)
Flex代码:(ajax_api.mxml)
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:TextArea x="209" y="139" height="245" width="318" id="text1" fontSize="28"/>
<mx:Script>
<![CDATA[
import mx.rpc.events.ResultEvent;
import flash.external.*;
public function callWrapper():void {
var s:String;
if (ExternalInterface.available) {
ExternalInterface.addCallback("g", g);
var wrapperFunction:String = "initialize";
ExternalInterface.call(wrapperFunction,text1.text);
} else {
s = "Wrapper not available";
}
trace(s);
}
public function g(str:String):void
{
text1.text = str;
}
]]>
</mx:Script>
<mx:Button x="75" y="50" label="Enter some text and click this button to see the transliteration output" click="callWrapper()" height="37"/>
</mx:Application>
HTML Wrapper :
HTML包装器:
<!-- saved from url=(0014)about:internet -->
<html lang="en">
<!--
Smart developers always View Source.
This application was built using Adobe Flex, an open source framework
for building rich Internet applications that get delivered via the
Flash Player or to desktops via Adobe AIR.
Learn more about Flex at http://flex.org
// -->
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- BEGIN Browser History required section -->
<link rel="stylesheet" type="text/css" href="history/history.css" />
<!-- END Browser History required section -->
<title>ajax_api</title>
<script src="AC_OETags.js" language="javascript"></script>
<!-- BEGIN Browser History required section -->
<script src="history/history.js" language="javascript"></script>
<!-- END Browser History required section -->
<style>
body { margin: 0px; overflow:hidden }
</style>
<script language="JavaScript" type="text/javascript">
<!--
// -----------------------------------------------------------------------------
// Globals
// Major version of Flash required
var requiredMajorVersion = 9;
// Minor version of Flash required
var requiredMinorVersion = 0;
// Minor version of Flash required
var requiredRevision = 28;
// -----------------------------------------------------------------------------
// -->
</script>
</head>
<body scroll="no">
<script type="text/javascript" src="http://www.google.com/jsapi"></script>
<script type="text/javascript">
google.load("language", "1");
function thisMovie(movieName)
{
if(navigator.appName.indexOf("Microsoft")!=-1)
{
alert("microsoft");
return window[movieName];
}
else
{
return document[movieName];
}
}
function initialize(input) {
google.language.transliterate([input], "en", "hi", function(result) {
if (!result.error) {
var container = document.getElementById("transliteration");
if (result.transliterations && result.transliterations.length > 0 &&
result.transliterations[0].transliteratedWords.length > 0) {
output = result.transliterations[0].transliteratedWords[0];
thisMovie("ajax_api").g(output);
}
}
});
}
</script>
<script language="JavaScript" type="text/javascript">
<!--
// Version check for the Flash Player that has the ability to start Player Product Install (6.0r65)
var hasProductInstall = DetectFlashVer(6, 0, 65);
// Version check based upon the values defined in globals
var hasRequestedVersion = DetectFlashVer(requiredMajorVersion, requiredMinorVersion, requiredRevision);
if ( hasProductInstall && !hasRequestedVersion ) {
// DO NOT MODIFY THE FOLLOWING FOUR LINES
// Location visited after installation is complete if installation is required
var MMPlayerType = (isIE == true) ? "ActiveX" : "PlugIn";
var MMredirectURL = window.location;
document.title = document.title.slice(0, 47) + " - Flash Player Installation";
var MMdoctitle = document.title;
AC_FL_RunContent(
"src", "playerProductInstall",
"FlashVars", "MMredirectURL="+MMredirectURL+'&MMplayerType='+MMPlayerType+'&MMdoctitle='+MMdoctitle+"",
"width", "100%",
"height", "100%",
"align", "middle",
"id", "ajax_api",
"quality", "high",
"bgcolor", "#869ca7",
"name", "ajax_api",
"allowScriptAccess","sameDomain",
"type", "application/x-shockwave-flash",
"pluginspage", "http://www.adobe.com/go/getflashplayer"
);
} else if (hasRequestedVersion) {
// if we've detected an acceptable version
// embed the Flash Content SWF when all tests are passed
AC_FL_RunContent(
"src", "ajax_api",
"width", "100%",
"height", "100%",
"align", "middle",
"id", "ajax_api",
"quality", "high",
"bgcolor", "#869ca7",
"name", "ajax_api",
"allowScriptAccess","sameDomain",
"type", "application/x-shockwave-flash",
"pluginspage", "http://www.adobe.com/go/getflashplayer"
);
} else { // flash is too old or we can't detect the plugin
var alternateContent = 'Alternate HTML content should be placed here. '
+ 'This content requires the Adobe Flash Player. '
+ '<a href=http://www.adobe.com/go/getflash/>Get Flash</a>';
document.write(alternateContent); // insert non-flash content
}
// -->
</script>
<noscript>
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
id="ajax_api" width="100%" height="100%"
codebase="http://fpdownload.macromedia.com/get/flashplayer/current/swflash.cab">
<param name="movie" value="ajax_api.swf" />
<param name="quality" value="high" />
<param name="bgcolor" value="#869ca7" />
<param name="allowScriptAccess" value="sameDomain" />
<embed src="ajax_api.swf" quality="high" bgcolor="#869ca7"
width="100%" height="100%" name="ajax_api" align="middle"
play="true"
loop="false"
quality="high"
allowScriptAccess="sameDomain"
type="application/x-shockwave-flash"
pluginspage="http://www.adobe.com/go/getflashplayer">
</embed>
</object>
</noscript>
</body>
</html>