用于 SLA 研究的富互联网应用程序/FlashComm 数据库交互 Flash
在 Flash MX 2004 中，创建一个包含以下图层、关键帧和标签的时间轴。
注意，此动画的 ActionScript 将放置在 *CSAS* 图层中。
将用户界面元素添加到 *UI* 图层，使您的动画类似于此图像。
将界面元素命名如下
- *用户名* 文本区域：*username_txt*
- *密码* 文本区域：*password_txt*
- *输入* 按钮：*enter_pb*
- 底部文本区域：*output_txt*
添加一行文本，如本图像所示。
将用户界面元素添加到 *UI* 图层，使您的动画类似于此图像。
将界面元素命名如下
- AudioConference 通信组件：*audioChat_mc*
- SetBandwidth 通信组件：*bw_mc*
- *响铃* 按钮：*bell_pb*
- UserColor 通信组件：*userColor_mc*
- 大型文本区域：*chat*
- 单行文本区域：*chatIn*
- *发送* 按钮：*chat_bt*
为以下按钮设置点击处理程序
- *保存文本* 按钮：*writeSSText*
- *结束会话* 按钮：*endSession*
- *响铃* 按钮：*dingDong*
- *发送* 按钮：*addText*
按照聊天研究人员关键帧的说明操作，但应省略 *保存文本* 和 *结束会话* 按钮。动画应类似于此图像。
以下 ActionScript 代码应添加到每个指示的关键帧。它应放置在 *CSAS* 图层中。
// AMFPHPChat - CSAS layer - login keyframe // //Needed classes #include "NetServices.as" //just for debugging purposes #include "NetDebug.as" #include "synchAndStatusHandler.as" // Microphone.prototype.onStatus = onStatusTemplate; NetConnection.prototype.onStatus = onStatusTemplate; NetStream.prototype.onStatus = onStatusTemplate; SharedObject.prototype.onStatus = onStatusTemplate; // var appName:String = "AMFPHPChat"; // // ************************************************************* // Netservices set-up: This creates a Flash Remoting connection // to the AMFPHP-enabled web server (e.g., Apache) and allows // the .swf to call a function in a PHP script, thereby working // around the crossdomain restrictions imposed on loadVars objects. // // http://www.amfphp.org for more information on the technology. // ************************************************************* NetServices.setDefaultGatewayUrl("http://DOMAINNAME/cgi-bin/" + appName + "/gateway.php"); // // Then, create the connection object without passing a response object parameter // to the method. The response object will be specified when the component's function // is called via the service object, myService, defined below. AMFPHPChatConnection = NetServices.createGatewayConnection(); // // Result handler for the AMFPHP call "AMFPHPService.validateUser" // in validateUserAMF(), father below loginAMFRequest = new Object(); loginAMFRequest.onResult = function(loginResult){ // TODO: AMFPHP service needs to return value that // distinguishes between error/incorrect login as well as // researcher and subject logins trace("loginResult: " + loginResult); output_txt.text += loginResult + "\n"; Key.removeListener(loginKeyListener); gotoAndStop("wait"); } //Create the service used to access PHP code via AMFPHP AMFPHPService = AMFPHPChatConnection.getService("DBServices"); // instantiate generic object to serve as key listener loginKeyListener = new Object(); // loginKeyListener.onKeyDown = function() { if(Key.getCode() == Key.ENTER) { // validate user via function that // queries AMFPHP script validateUserAMF(); }; }; // Key.addListener(loginKeyListener); // validate user via function that // queries AMFPHP script this.enter_pb.onRelease = function() { validateUserAMF(); }; // TO DO: Callback code (a la that in SSAS) needed // to time out the validateUserAMF call to AMFPHP gateway validateUserAMF = function () { trace("validating user"); userIDValue = username_txt.text; trace("userIDValue: " + userIDValue); passwordValue = password_txt.text; trace("passwordValue: " + passwordValue); AMFPHPService.validateUser(loginAMFRequest, username_txt.text, password_txt.text); }; // stop();
// AMFPHPChat_03 - CSAS layer - wait keyframe
// VERSION DATE: 17APR2005
//
#include "NetDebug.as"
#include "synchAndStatusHandler.as"
load("components.asc");
// set globals and constants
RING_VOLUME = 30;
SESSION_MAX_LENGTH = 60;
// generic data object
_global.session = new Object();
// session.username from log-in input
_global.session.username = username;
_global.session.pwd = password;
trace("username: " + session.username);
trace("password: " + session.pwd);
// NetConnection code
// session.uri sets path to server-side application
_global.session.uri = "rtmp://127.0.0.1/" + appName + "/instance01";
trace("_global.session.uri: " + _global.session.uri);
//
// create connection object for components and shared objects
chat_nc = new NetConnection();
//
// connect connection object with FlashCom server
chat_nc.connect(session.uri, session.username);
// Set maximum scroll of chat textarea
chat.maxscroll = 1000;
trace("chat.maxscroll: " + chat.maxscroll);
//
// create remote (server-side) shared object: textchat
//
// textchat_so methods should be defined before connecting
// shared object with FlashCom server
AMFPHPChat_so = SharedObject.getRemote("AMFPHPChat_so", _global.session.uri, false);
AMFPHPChat_so.onSync = onSyncTemplate;
//
// AMFPHPChat_so.enterChat
// Function is to be called when set number of users
// have logged in and are waiting at the "wait" frame.
AMFPHPChat_so.enterChat = function() {
trace("in enterChat");
gotoAndStop("chat_researcher");
// this code will have to be changed to decide whether to go
// to the researcher interface or the subject interface
};
//
// connect shared object with FlashCom server
trace("wait; chat_nc: " + chat_nc);
AMFPHPChat_so.connect(chat_nc);
//
// Let FlashCom know app is waiting
chat_nc.call("waiting", null);
//
stop();
// AMFPHPChat - CSAS layer - chat_researcher keyframe
//
writeSSText = function() {
trace("writeSSText CSAS function, calling writeTextToDB on server");
chat_nc.call("saveTextToDB", null);
};
//
endSession = function() {
trace("endSession called");
chat_nc.call("destroySession", null);
};
//
addText = function() {
//trace("in addText - length: " + length(chatIn.text));
if(length(chatIn.text) > 0) {
// call clientChatMessage on server
trace("calling clientChatMessage on server");
userColor = new String(gFlashCom.userprefs.color);
userColor = "#" + userColor.substr(2);
trace("addText() - userColor: " + userColor);
chat_nc.call("clientChatMessage", null, chatIn.text, userColor);
// clear input line text
chatIn.text = "";
// maintain focus on input line
Selection.setFocus("chatIn");
};
};
//
// serverChatMessage function; called from SSAS (main.asc)
AMFPHPChat_so.serverChatMessage = function(msg) {
trace("in serverChatMessage - msg: " + msg);
chat.htmlText += msg;
chat.scroll = chat.maxscroll;
};
//
// Chat updates on the server with msg upon connection.
// Chat will be blank for first user; subsequent users will get
// latest chat.maxscroll units of any chat text preceding their
// connecting. Chat text is cleared when user count reaches zero.
// Called from SSAS (main.asc)
AMFPHPChat_so.startChat = function(msg) {
trace("in startChat - msg: " + msg);
chat.htmlText = msg;
// connect FCS UI components
app_init();
};
//
// THIS NEEDS FIXING! As of 4-3-05, a user who rejoins the chat
// has her text color set to that of the other user. Perhaps persistent
// shared object needed?
//
// instantiate generic object to serve as color change listener
colorListener = new Object();
//
colorListener.onColorChange = function(){
colorListener.color = gFlashCom.userprefs.color;
trace("colorListener.color: " + gFlashCom.userprefs.color);
};
//
gFlashCom.userprefs.addListener(colorListener);
//
// instantiate generic object to serve as key listener
keyListener = new Object();
//
// define onKeyDown to trigger check for enter key
keyListener.onKeyDown = function() {
if(Key.getCode() == Key.ENTER) {
addText();
};
};
//
Key.addListener(keyListener);
//
// create chat_doorbell sound
chat_doorbell = new Sound(this);
chat_doorbell.attachSound("doorbell.wav");
chat_doorbell.setVolume(RING_VOLUME);
chat_doorbell.stop();
trace("chat_doorbell: " + chat_doorbell);
//
// ring doorbell; calls SSAS, which then calls
// AMFPHPChat_so.clientRing on each client
dingDong = function() {
trace("Ding Dong!");
chat_nc.call("doorbellRing", null);
};
//
AMFPHPChat_so.clientRing = function() {
trace("in clientRing");
chat_doorbell.start();
};
//
app_init = function() {
// connect UI component(s)
//trace("bandwidth_mc.connect");
trace("app_init; session.username: " + session.username);
// userColor_mc.setUsername(session.username);
userColor_mc.connect(chat_nc);
bw_mc.setUsername(session.username);
bw_mc.connect(chat_nc);
audioChat_mc.setUsername(session.username);
audioChat_mc.connect(chat_nc);
Selection.setFocus("chatIn");
historyScroll.setScrollTarget(chat);
historyScroll.setScrollPosition(chat.maxscroll);
};
//
app_close = function() {
//trace("app_close: closing...");
chat.text = "";
};
//
// tell server-side scripts that client is ready
chat_nc.call("ready", null, sessionID);
//
stop();
注意：*chat_subject* 关键帧可以使用与 *chat_researcher* 关键帧相同的代码，因为在没有 *chat_researcher* 关键帧中的 UI 按钮的情况下，无法访问文本写入和会话结束代码。
注意：以下代码应放在名为 *synchAndStatusHandler.as* 的文件中。此代码在 Flash MX 2004 作者环境中用于调试。它报告所有同步消息（例如成功和错误）以及状态消息。可以添加代码以响应特定事件，例如连接错误或意外断开连接。
// AMFPHPChat
// *TEMPLATE* synchAndStatusHandler - CSAS/SSAS - "#include" file
//
onSyncTemplate = function (info) {
trace("Data Synchronizing");
//
// This structure may be used as a prototype for onSync handlers.
//
// First, loop through the array of objects with the IN operator
//
for (name in info) {
trace("[sync] Array Object #"+name+" code("+info[name].code+","+info[name].name+")");
//
// ::: switch to handle code values returned by the object
// Place Custom Code Here
//
switch (info[name].code) {
case "change" :
trace("::change of data by another client");
// Place Custom Code Here
//
break;
case "success" :
trace("::successful change of data from this server");
// Place Code Here
//
break;
case "reject" :
trace("::rejected SharedObject write operation");
// Place Code Here
//
break;
case "clear" :
trace("::initialization of the SharedObject");
// Place Code Here
//
break;
case "delete" :
trace("::deleted Attributes");
// Place Code Here
}
// ::: End the switch, continue looping through the information object
}
// ::: End of onSync handler
};
//
function onStatusTemplate(info) {
infoMessage_array = info.code.split(".");
trace(" ** status message received for: "+infoMessage_array[0]+" **");
trace(" ** "+new Date());
trace(" |::: Level--> "+info.level);
trace(" |::: Code --> "+info.code);
//
// Trace information properties
if (info.description != undefined) {
trace(" |::: Description--> "+info.description);
}
if (info.details != undefined) {
trace(" |::: Details--> "+info.details);
}
if (info.application != undefined) {
trace(" |::: Application--> "+info.application);
}
switch (infoMessage_array[0]) {
case "Application" :
trace(" | ::::Application Messages");
// Display script error messages
if (infoMessage_array[1] == "script") {
trace(" |::: Script Error Details. Filename--> "+info.filename+" Line--> "+info.lineno);
trace(info.linebuf);
}
// Place Code Here
break;
case "Camera" :
// | :::: Handle Camera Messages
// Place Code Here
break;
case "Microphone" :
// | :::: Handle Microphone Messages
// Place Code Here
break;
case "NetConnection" :
// | ::: Handle NetConnection Messages
if (infoMessage_array[2] == "Success") {
trace(" |::* Connection accepted by server; continuing to load.");
// Place (below) scripts to run when the connection has succeeded
}
if (infoMessage_array[2] == "Closed") {
trace(" |::* Connection was closed; returning the user!");
app_close();
}
// Place Code Here
break;
case "NetStream" :
// | :::: Handle NetStream Messages
// Place Code Here
}
trace(" ** End Status Message for: "+infoMessage_array[0]+" **");
}