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mathias |
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if(!dojo._hasResource["dijit.demos.chat.room"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
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dojo._hasResource["dijit.demos.chat.room"] = true;
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dojo.provide("dijit.demos.chat.room");
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dojo.require("dojox.cometd");
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dojo.require("dijit._Widget");
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dojo.require("dijit._Templated");
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dojo.declare("dijit.demos.chat.Room",
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[dijit._Widget,dijit._Templated],
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{
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_last: "",
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_username: null,
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roomId: "public",
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isPrivate: false,
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prompt: "Name:",
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templateString: '<div id="${id}" class="chatroom">'
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+'<div dojoAttachPoint="chatNode" class="chat"></div>'
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+'<div dojoAttachPoint="input" class="input">'
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+'<div dojoAttachPoint="joining">'
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+'<span>${prompt}</span><input class="username" dojoAttachPoint="username" type="text" dojoAttachEvent="onkeyup: _join"> <input dojoAttachPoint="joinB" class="button" type="submit" name="join" value="Contact" dojoAttachEvent="onclick: _join"/>'
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+'</div>'
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+'<div dojoAttachPoint="joined" class="hidden">'
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+'<input type="text" class="phrase" dojoAttachPoint="phrase" dojoAttachEvent="onkeyup: _cleanInput" />'
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+'<input type="submit" class="button" value="Send" dojoAttachPoint="sendB" dojoAttachEvent="onclick: _sendPhrase"/>'
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+'</div>'
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+'</div>'
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+'</div>',
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join: function(name){
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if(name == null || name.length==0){
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alert('Please enter a username!');
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}else{
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if(this.isPrivate){ this.roomId = name; }
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this._username=name;
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this.joining.className='hidden';
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this.joined.className='';
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this.phrase.focus();
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console.log(this.roomId);
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dojox.cometd.subscribe("/chat/demo/" + this.roomId, this, "_chat");
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dojox.cometd.publish("/chat/demo/" + this.roomId, { user: this._username, join: true, chat : this._username+" has joined the room."});
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dojox.cometd.publish("/chat/demo", { user: this._username, joined: this.roomId });
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}
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},
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_join: function(/* Event */e){
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var key = (e.charCode == dojo.keys.SPACE ? dojo.keys.SPACE : e.keyCode);
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if (key == dojo.keys.ENTER || e.type=="click"){
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this.join(this.username.value);
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}
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},
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leave: function(){
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dojox.cometd.unsubscribe("/chat/demo/" + this.roomId, this, "_chat");
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dojox.cometd.publish("/chat/demo/" + this.roomId, { user: this._username, leave: true, chat : this._username+" has left the chat."});
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// switch the input form back to login mode
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this.joining.className='';
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this.joined.className='hidden';
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this.username.focus();
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this._username=null;
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},
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chat: function(text){
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// summary: publish a text message to the room
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if(text != null && text.length>0){
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// lame attempt to prevent markup
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text=text.replace(/</g,'<');
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text=text.replace(/>/g,'>');
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dojox.cometd.publish("/chat/demo/" + this.roomId, { user: this._username, chat: text});
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}
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},
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_chat: function(message){
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// summary: process an incoming message
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if (!message.data){
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console.warn("bad message format "+message);
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return;
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}
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var from=message.data.user;
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var special=message.data.join || message.data.leave;
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var text=message.data.chat;
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if(text!=null){
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if(!special && from == this._last ){ from="...";
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}else{
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this._last=from;
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from+=":";
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}
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if(special){
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this.chatNode.innerHTML += "<span class=\"alert\"><span class=\"from\">"+from+" </span><span class=\"text\">"+text+"</span></span><br/>";
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this._last="";
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}else{
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this.chatNode.innerHTML += "<span class=\"from\">"+from+" </span><span class=\"text\">"+text+"</span><br/>";
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this.chatNode.scrollTop = this.chatNode.scrollHeight - this.chatNode.clientHeight;
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}
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}
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},
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startup: function(){
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this.joining.className='';
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this.joined.className='hidden';
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//this.username.focus();
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this.username.setAttribute("autocomplete","OFF");
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if (this.registeredAs) { this.join(this.registeredAs); }
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this.inherited("startup",arguments);
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},
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_cleanInput: function(/* Event */e){
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var key = (e.charCode == dojo.keys.SPACE ? dojo.keys.SPACE : e.keyCode);
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if(key == dojo.keys.ENTER || key == 13){
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this.chat(this.phrase.value);
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this.phrase.value='';
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}
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},
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_sendPhrase: function(/* Event */e){
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if (this.phrase.value){
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this.chat(this.phrase.value);
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this.phrase.value='';
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}
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}
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});
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}
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