js与flash交互操作1

来源：互联网发布：c语言怎么求素数的和编辑：程序博客网时间：2024/05/17 22:16

//flash里传送值
'<param name="flashvars" value="' + this.getFlashVars() + '" />'
//flash里获取值
this.uploadURL=root.loaderinfo.parameters.uploadURL

SWFUpload.prototype.getFlashVars = function () {
// Build a string from the post param object
var paramString = this.buildParamString();
var httpSuccessString = this.settings.http_success.join(",");

// Build the parameter string
return ["movieName=", encodeURIComponent(this.movieName),
"&uploadURL=", encodeURIComponent(this.settings.upload_url),
"&useQueryString=", encodeURIComponent

(this.settings.use_query_string),
"&requeueOnError=", encodeURIComponent

(this.settings.requeue_on_error),
"&httpSuccess=", encodeURIComponent(httpSuccessString),
"&assumeSuccessTimeout=", encodeURIComponent

(this.settings.assume_success_timeout),
"&params=", encodeURIComponent(paramString),
"&filePostName=", encodeURIComponent

(this.settings.file_post_name),
"&fileTypes=", encodeURIComponent(this.settings.file_types),
"&fileTypesDescription=", encodeURIComponent

(this.settings.file_types_description),
"&fileSizeLimit=", encodeURIComponent

(this.settings.file_size_limit),
"&fileUploadLimit=", encodeURIComponent

(this.settings.file_upload_limit),
"&fileQueueLimit=", encodeURIComponent

(this.settings.file_queue_limit),
"&debugEnabled=", encodeURIComponent

(this.settings.debug_enabled),
"&buttonImageURL=", encodeURIComponent

(this.settings.button_image_url),
"&buttonWidth=", encodeURIComponent(this.settings.button_width),
"&buttonHeight=", encodeURIComponent

(this.settings.button_height),
"&buttonText=", encodeURIComponent(this.settings.button_text),
"&buttonTextTopPadding=", encodeURIComponent

(this.settings.button_text_top_padding),
"&buttonTextLeftPadding=", encodeURIComponent

(this.settings.button_text_left_padding),
"&buttonTextStyle=", encodeURIComponent

(this.settings.button_text_style),
"&buttonAction=", encodeURIComponent

(this.settings.button_action),
"&buttonDisabled=", encodeURIComponent

(this.settings.button_disabled),
"&buttonCursor=", encodeURIComponent

(this.settings.button_cursor)
].join("");
};
//js调用flash中的方法
SWFUpload.prototype.callFlash = function (functionName, argumentArray) {
argumentArray = argumentArray || [];

var movieElement = this.getMovieElement();
var returnValue, returnString;

// Flash's method if calling ExternalInterface methods (code adapted from MooTools).
try {
returnString = movieElement.CallFunction('<invoke name="' + functionName +

'" returntype="javascript">' + __flash__argumentsToXML(argumentArray, 0) + '</invoke>');
returnValue = eval(returnString);
} catch (ex) {
throw "Call to " + functionName + " failed";
}

// Unescape file post param values
if (returnValue != undefined && typeof returnValue.post === "object") {
returnValue = this.unescapeFilePostParams(returnValue);
}

return returnValue;
};
//调用
SWFUpload.prototype.getStats = function () {
return this.callFlash("GetStats");
};
SWFUpload.prototype.getFile = function (fileID) {
if (typeof(fileID) === "number") {
return this.callFlash("GetFileByIndex", [fileID]);
} else {
return this.callFlash("GetFile", [fileID]);
}
};
SWFUpload.prototype.addFileParam = function (fileID, name, value) {
return this.callFlash("AddFileParam", [fileID, name, value]);
};

SWFUpload.prototype.getMovieElement = function () {
if (this.movieElement == undefined) {//this.movieName就是flash object的id
this.movieElement = document.getElementById(this.movieName);
}

if (this.movieElement === null) {
throw "Could not find Flash element";
}

return this.movieElement;
};