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腾讯的迷你门户首页新闻用到的Silverlight技术引用

發布時間：2023/12/15 编程问答 18 豆豆

生活随笔收集整理的這篇文章主要介紹了腾讯的迷你门户首页新闻用到的Silverlight技术引用小編覺得挺不錯的,現在分享給大家,幫大家做個參考.

騰訊的迷你門戶首頁新聞用到的Silverlight技術引用：

調用：

<a href="http://news.qq.com/photo.shtml" target="_blank"><img src="http://img1.gtimg.com/news/pics/21922/21922968.jpg"></a><span id="linkme"><a href="http://news.qq.com/photo.shtml" target="_blank">國慶慶典場地開始布置</a></span>
</div>

腳本：

JS：

if (!window.Silverlight)
{
??? window.Silverlight = { };
}

// Silverlight control instance counter for memory mgt
Silverlight._silverlightCount = 0;
Silverlight.fwlinkRoot='http://go2.microsoft.com/fwlink/?LinkID=';
Silverlight.onGetSilverlight = null;
Silverlight.onSilverlightInstalled = function () {window.location.reload(false);};

//
// isInstalled, checks to see if the correct version is installed
//
Silverlight.isInstalled = function(version)
{
??? var isVersionSupported=false;
??? var container = null;
???
??? try
??? {
??????? var control = null;
???????
??????? try
??????? {
??????????? control = new ActiveXObject('AgControl.AgControl');
??????????? if ( version == null )
??????????? {
??????????????? isVersionSupported = true;
??????????? }
??????????? else if ( control.IsVersionSupported(version) )
??????????? {
??????????????? isVersionSupported = true;
??????????? }
??????????? control = null;
??????? }
??????? catch (e)
??????? {
??????????? var plugin = navigator.plugins["Silverlight Plug-In"] ;
??????????? if ( plugin )
??????????? {
??????????????? if ( version === null )
??????????????? {
??????????????????? isVersionSupported = true;
??????????????? }
??????????????? else
??????????????? {
??????????????????? var actualVer = plugin.description;
??????????????????? if ( actualVer === "1.0.30226.2")
??????????????????????? actualVer = "2.0.30226.2";
??????????????????? var actualVerArray =actualVer.split(".");
??????????????????? while ( actualVerArray.length > 3)
??????????????????? {
??????????????????????? actualVerArray.pop();
??????????????????? }
??????????????????? while ( actualVerArray.length < 4)
??????????????????? {
??????????????????????? actualVerArray.push(0);
??????????????????? }
??????????????????? var reqVerArray = version.split(".");
??????????????????? while ( reqVerArray.length > 4)
??????????????????? {
??????????????????????? reqVerArray.pop();
??????????????????? }
???????????????????
??????????????????? var requiredVersionPart ;
??????????????????? var actualVersionPart
??????????????????? var index = 0;
???????????????????
???????????????????
??????????????????? do
??????????????????? {
??????????????????????? requiredVersionPart = parseInt(reqVerArray[index]);
??????????????????????? actualVersionPart = parseInt(actualVerArray[index]);
??????????????????????? index++;
??????????????????? }
??????????????????? while (index < reqVerArray.length && requiredVersionPart ===

actualVersionPart);
???????????????????
??????????????????? if ( requiredVersionPart <= actualVersionPart && !isNaN(requiredVersionPart) )
??????????????????? {
??????????????????????? isVersionSupported = true;
??????????????????? }
??????????????? }
??????????? }
??????? }
??? }
??? catch (e)
??? {
??????? isVersionSupported = false;
??? }
??? if (container)
??? {
??????? document.body.removeChild(container);
??? }
???
??? return isVersionSupported;
}
Silverlight.WaitForInstallCompletion = function()
{
??? if ( ! Silverlight.isBrowserRestartRequired && Silverlight.onSilverlightInstalled )
??? {
??????? try
??????? {
??????????? navigator.plugins.refresh();
??????? }
??????? catch(e)
??????? {
??????? }
??????? if ( Silverlight.isInstalled(null) )
??????? {
??????????? Silverlight.onSilverlightInstalled();
??????? }
??????? else
??????? {
????????????? setTimeout(Silverlight.WaitForInstallCompletion, 3000);
??????? }???
??? }
}
Silverlight.__startup = function()
{
??? Silverlight.isBrowserRestartRequired = Silverlight.isInstalled(null);//(!window.ActiveXObject

|| Silverlight.isInstalled(null));
??? if ( !Silverlight.isBrowserRestartRequired)
??? {
??????? Silverlight.WaitForInstallCompletion();
??? }
??? if (window.removeEventListener) {
?????? window.removeEventListener('load', Silverlight.__startup , false);
??? }
??? else {
??????? window.detachEvent('onload', Silverlight.__startup );
??? }
}

if (window.addEventListener)
{
??? window.addEventListener('load', Silverlight.__startup , false);
}
else
{
??? window.attachEvent('onload', Silverlight.__startup );
}

///
// createObject(); Params:
// parentElement of type Element, the parent element of the Silverlight Control
// source of type String
// id of type string
// properties of type String, object literal notation { name:value, name:value, name:value},
//???? current properties are: width, height, background, framerate, isWindowless,

enableHtmlAccess, inplaceInstallPrompt: all are of type string
// events of type String, object literal notation { name:value, name:value, name:value},
//???? current events are onLoad onError, both are type string
// initParams of type Object or object literal notation { name:value, name:value, name:value}
// userContext of type Object
/

Silverlight.createObject = function(source, parentElement, id, properties, events, initParams,

userContext)
{
??? var slPluginHelper = new Object();
??? var slProperties = properties;
??? var slEvents = events;
???
??? slPluginHelper.version = slProperties.version;
??? slProperties.source = source;???
??? slPluginHelper.alt = slProperties.alt;
???
??? //rename properties to their tag property names
??? if ( initParams )
??????? slProperties.initParams = initParams;
??? if ( slProperties.isWindowless && !slProperties.windowless)
??????? slProperties.windowless = slProperties.isWindowless;
??? if ( slProperties.framerate && !slProperties.maxFramerate)
??????? slProperties.maxFramerate = slProperties.framerate;
??? if ( id && !slProperties.id)
??????? slProperties.id = id;
???
??? // remove elements which are not to be added to the instantiation tag
??? delete slProperties.ignoreBrowserVer;
??? delete slProperties.inplaceInstallPrompt;
??? delete slProperties.version;
??? delete slProperties.isWindowless;
??? delete slProperties.framerate;
??? delete slProperties.data;
??? delete slProperties.src;
??? delete slProperties.alt;

??? // detect that the correct version of Silverlight is installed, else display install

??? if (Silverlight.isInstalled(slPluginHelper.version))
??? {
??????? //move unknown events to the slProperties array
??????? for (var name in slEvents)
??????? {
??????????? if ( slEvents[name])
??????????? {
??????????????? if ( name == "onLoad" && typeof slEvents[name] == "function" && slEvents

[name].length != 1 )
??????????????? {
??????????????????? var onLoadHandler = slEvents[name];
??????????????????? slEvents[name]=function (sender){ return onLoadHandler

(document.getElementById(id), userContext, sender)};
??????????????? }
??????????????? var handlerName = Silverlight.__getHandlerName(slEvents[name]);
??????????????? if ( handlerName != null )
??????????????? {
??????????????????? slProperties[name] = handlerName;
??????????????????? slEvents[name] = null;
??????????????? }
??????????????? else
??????????????? {
??????????????????? throw "typeof events."+name+" must be 'function' or 'string'";
??????????????? }
??????????? }
??????? }
??????? slPluginHTML = Silverlight.buildHTML(slProperties);
??? }
??? //The control could not be instantiated. Show the installation prompt
??? else
??? {
??????? slPluginHTML = Silverlight.buildPromptHTML(slPluginHelper);
??? }

??? // insert or return the HTML
??? if(parentElement)
??? {
??????? parentElement.innerHTML = slPluginHTML;
??? }
??? else
??? {
??????? return slPluginHTML;
??? }

}

///
//
// create HTML that instantiates the control
//
///
Silverlight.buildHTML = function( slProperties)
{
??? var htmlBuilder = [];

??? htmlBuilder.push('<object type=\"application/x-silverlight\" data="data:application/x-

silverlight,"');
??? if ( slProperties.id != null )
??? {
??????? htmlBuilder.push(' id="' + slProperties.id + '"');
??? }
??? if ( slProperties.width != null )
??? {
??????? htmlBuilder.push(' width="' + slProperties.width+ '"');
??? }
??? if ( slProperties.height != null )
??? {
??????? htmlBuilder.push(' height="' + slProperties.height + '"');
??? }
??? htmlBuilder.push(' >');
???
??? delete slProperties.id;
??? delete slProperties.width;
??? delete slProperties.height;
???
??? for (var name in slProperties)
??? {
??????? if (slProperties[name])
??????? {
??????????? htmlBuilder.push('<param name="'+Silverlight.HtmlAttributeEncode(name)+'"

value="'+Silverlight.HtmlAttributeEncode(slProperties[name])+'" />');
??????? }
??? }
??? htmlBuilder.push('<\/object>');
??? return htmlBuilder.join('');
}

// createObjectEx, takes a single parameter of all createObject parameters enclosed in {}
Silverlight.createObjectEx = function(params)
{
??? var parameters = params;
??? var html = Silverlight.createObject(parameters.source, parameters.parentElement,

parameters.id, parameters.properties, parameters.events, parameters.initParams,

parameters.context);
??? if (parameters.parentElement == null)
??? {
??????? return html;
??? }
}

///
// Builds the HTML to prompt the user to download and install Silverlight
///
Silverlight.buildPromptHTML = function(slPluginHelper)
{
??? var slPluginHTML = "";
??? var urlRoot = Silverlight.fwlinkRoot;
??? var shortVer = slPluginHelper.version ;
??? if ( slPluginHelper.alt )
??? {
??????? slPluginHTML = slPluginHelper.alt;
??? }
??? else
??? {
??????? if (! shortVer )
??????? {
??????????? shortVer="";
??????? }
??????? slPluginHTML = "<a href='javascript:Silverlight.getSilverlight(\"{1}\");' style='text-

decoration: none;'><img src='{2}' alt='Get Microsoft Silverlight' style='border-style:

none'/></a>";
??????? slPluginHTML = slPluginHTML.replace('{1}', shortVer );
??????? slPluginHTML = slPluginHTML.replace('{2}', urlRoot + '108181');
??? }
???
??? return slPluginHTML;
}

Silverlight.getSilverlight = function(version)
{
??? if (Silverlight.onGetSilverlight )
??? {
??????? Silverlight.onGetSilverlight();
??? }
???
??? var shortVer = "";
??? var reqVerArray = String(version).split(".");
??? if (reqVerArray.length > 1)
??? {
??????? var majorNum = parseInt(reqVerArray[0] );
??????? if ( isNaN(majorNum) || majorNum < 2 )
??????? {
??????????? shortVer = "1.0";
??????? }
??????? else
??????? {
??????????? shortVer = reqVerArray[0]+'.'+reqVerArray[1];
??????? }
??? }
???
??? var verArg = "";
???
??? if (shortVer.match(/^\d+\056\d+$/) )
??? {
??????? verArg = "&v="+shortVer;
??? }
???
??? Silverlight.followFWLink("114576" + verArg);
}

///
/// Navigates to a url based on fwlinkid
///
Silverlight.followFWLink = function(linkid)
{
??? top.location=Silverlight.fwlinkRoot+String(linkid);
}

///
/// Encodes special characters in input strings as charcodes
///
Silverlight.HtmlAttributeEncode = function( strInput )
{
????? var kabon;
????? var retVal = '';

??? if(strInput == null)
????? {
????????? return null;
??? }
?????
????? for(var cnt = 0; cnt < strInput.length; cnt++)
????? {
??????????? kabon = strInput.charCodeAt(cnt);

??????????? if (( ( kabon > 96 ) && ( kabon < 123 ) ) ||
????????????????? ( ( kabon > 64 ) && ( kabon < 91 ) ) ||
????????????????? ( ( kabon > 43 ) && ( kabon < 58 ) && (kabon!=47)) ||
????????????????? ( kabon == 95 ))
??????????? {
????????????????? retVal = retVal + String.fromCharCode(kabon);
??????????? }
??????????? else
??????????? {
????????????????? retVal = retVal + '&#' + kabon + ';';
??????????? }
????? }
?????
????? return retVal;
}
///
//
// Default error handling function to be used when a custom error handler is
// not present
//
///

Silverlight.default_error_handler = function (sender, args)
{
??? var iErrorCode;
??? var errorType = args.ErrorType;

??? iErrorCode = args.ErrorCode;

??? var errMsg = "\nSilverlight error message???? \n" ;

??? errMsg += "ErrorCode: "+ iErrorCode + "\n";

??? errMsg += "ErrorType: " + errorType + "?????? \n";
??? errMsg += "Message: " + args.ErrorMessage + "???? \n";

??? if (errorType == "ParserError")
??? {
??????? errMsg += "XamlFile: " + args.xamlFile + "???? \n";
??????? errMsg += "Line: " + args.lineNumber + "???? \n";
??????? errMsg += "Position: " + args.charPosition + "???? \n";
??? }
??? else if (errorType == "RuntimeError")
??? {
??????? if (args.lineNumber != 0)
??????? {
??????????? errMsg += "Line: " + args.lineNumber + "???? \n";
??????????? errMsg += "Position: " + args.charPosition + "???? \n";
??????? }
??????? errMsg += "MethodName: " + args.methodName + "???? \n";
??? }
??? alert (errMsg);
}

///
/// Releases event handler resources when the page is unloaded
///
Silverlight.__cleanup = function ()
{
??? for (var i = Silverlight._silverlightCount - 1; i >= 0; i--) {
??????? window['__slEvent' + i] = null;
??? }
??? Silverlight._silverlightCount = 0;
??? if (window.removeEventListener) {
?????? window.removeEventListener('unload', Silverlight.__cleanup , false);
??? }
??? else {
??????? window.detachEvent('onunload', Silverlight.__cleanup );
??? }
}
///
/// Releases event handler resources when the page is unloaded
///
Silverlight.__getHandlerName = function (handler)
{
??? var handlerName = "";
??? if ( typeof handler == "string")
??? {
??????? handlerName = handler;
??? }
??? else if ( typeof handler == "function" )
??? {
??????? if (Silverlight._silverlightCount == 0)
??????? {
??????????? if (window.addEventListener)
??????????? {
??????????????? window.addEventListener('onunload', Silverlight.__cleanup , false);
??????????? }
??????????? else
??????????? {
??????????????? window.attachEvent('onunload', Silverlight.__cleanup );
??????????? }
??????? }
??????? var count = Silverlight._silverlightCount++;
??????? handlerName = "__slEvent"+count;
???????
??????? window[handlerName]=handler;
??? }
??? else
??? {
??????? handlerName = null;
??? }
??? return handlerName;
}/* |xGv00|66e74a524a319070fc813e2675d1e51e */

總結

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