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/*
* JQuery Terminal Emulator Plugin
* Copyright (C) 2010 Jakub Jankiewicz <http://jcubic.pl>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
Array.prototype.has=function(b){for(var a=this.length;a--;){if(this[a]==b){return true}}return false};(function($,undefined){function str_parts(str,length){var result=[];var len=str.length;if(len<length){return[str]}for(var i=0;i<len;i+=length){result.push(str.substring(i,i+length))}return result}function encodeHTML(str){if(typeof str=="string"){str=str.replace(/&/g,"&");str=str.replace(/</g,"<").replace(/>/g,">");str=str.replace(/\n/g,"<br/>");str=str.replace(/ /g," ");str=str.replace(/ (?= )/g," ");str=str.replace(/\t/g,"	");str=str.replace(/[^ -~]/g,"");return str}else{return""}}function Cycle(init){var data=init?[init]:[];var pos=0;$.extend(this,{rotate:function(){if(data.length==1){return data[0]}else{if(pos==data.length-1){pos=0}else{++pos}return data[pos]}},length:function(){return data.length},set:function(item){for(var i=data.length;i--;){if(data[i]===item){pos=i;return}}this.append(item)},front:function(){return data[pos]},append:function(item){data.push(item)}})}function BCycle(init){var data=init instanceof Array?init:init?[init]:[];var pos=0;$.extend(this,{left:function(){if(pos===0){pos=data.length-1}else{--pos}return data[pos]},right:function(){if(pos==data.length-1){pos=0}else{++pos}return data[pos]},current:function(){return data[pos]},data:function(){return data},append:function(item){data.push(item);pos=0}})}function Stack(init){var data=init?[init]:[];$.extend(this,{size:function(){return data.length},pop:function(){if(data.length===0){return null}else{var value=data[data.length-1];data=data.slice(0,data.length-1);return value}},push:function(value){data=data.concat([value]);return value},top:function(){return data.length>0?data[data.length-1]:null}})}function json_stringify(object,level){var result="";level=level===undefined?1:level;var type=typeof object;switch(type){case"function":result+=object;break;case"boolean":result+=object?"true":"false";break;case"object":if(object===null){result+="null"}else{if(object instanceof Array){result+="[";var len=object.length;for(var i=0;i<len-1;++i){result+=json_stringify(object[i],level+1)}result+=json_stringify(object[len-1],level+1)+"]"}else{result+="{";for(var property in object){if(object.hasOwnProperty(property)){result+='"'+property+'":'+json_stringify(object[property],level+1)}}result+="}"}}break;case"string":var str=object;var repl={"\\\\":"\\\\",'"':'\\"',"/":"\\/","\\n":"\\n","\\r":"\\r","\\t":"\\t"};for(var i in repl){if(repl.hasOwnProperty(i)){str=str.replace(new RegExp(i,"g"),repl[i])}}result+='"'+str+'"';break;case"number":result+=String(object);break}result+=(level>1?",":"");if(level==1){result=result.replace(/,([\]}])/g,"$1")}return result}$.json_stringify=json_stringify;function History(name,cookie){var enabled=true;if(typeof name==="string"&&name!==""){name+="_"}cookie=cookie===undefined||cookie;var data=cookie?$.cookie(name+"commands"):null;var bc=new BCycle(data?eval("("+data+")"):[""]);$.extend(this,{append:function(item){if(enabled&&bc.current()!=item){bc.append(item);if(cookie){$.cookie(name+"commands",json_stringify(bc.data()))}}},data:function(){return bc.data()},next:function(){return bc.right()},previous:function(){return bc.left()},clear:function(){bc=new BCycle();if(cookie){$.cookie(name+"commands",null)}},enable:function(){enabled=true},disable:function(){enabled=false}})}$.fn.cmd=function(options){var self=this;self.addClass("cmd");self.append('<span class="prompt"></span><span></span><span class="cursor"> </span><span></span>');var clip=$("<textarea/>").addClass("clipboard").appendTo(self);if(options.width){self.width(options.width)}var num_chars;var prompt_len;var mask=options.mask||false;var command="";var position=0;var prompt;var enabled=options.enabled;var name,history;var blink=(function(){var cursor=self.find(".cursor");return function(i){cursor.toggleClass("inverted")}})();function change_num_chars(){self.append('<span class="__test"> </span>');var test=self.find(".__test");num_chars=Math.floor(self.width()/test.width());test.remove()}function get_splited_command_line(){var first=command.substring(0,num_chars-prompt_len-1);var rest=command.substring(num_chars-prompt_len-1);return[first].concat(str_parts(rest,num_chars))}var redraw=(function(self){var cursor=self.find(".cursor");var before=cursor.prev();var after=cursor.next();return function(){var string=mask?command.replace(/./g,"*"):command;self.find("div").remove();before.html("");if(string.length>num_chars-prompt_len-1){var array=get_splited_command_line();var len=array.length;for(var i=0;i<len-1;++i){before.before("<div>"+encodeHTML(array[i])+"</div>")}string=array[len-1]}if(string===""){before.html("");cursor.html(" ");after.html("")}else{if(position==command.length){before.html(encodeHTML(string));cursor.html(" ");after.html("")}else{if(position===0){before.html("");cursor.html(string.slice(0,1));after.html(encodeHTML(string.slice(1)))}else{var before_str=encodeHTML(string.slice(0,position));before.html(before_str);var c=string.slice(position,position+1);cursor.html(encodeHTML(c));if(position==string.lenght-1){after.html("")}else{after.html(encodeHTML(string.slice(position+1)))}}}}before.html(before.html().replace(/ $/," "));after.html(after.html().replace(/^ /," "))}})(self);var draw_prompt=(function(){var prompt_node=self.find(".prompt");return function(){if(typeof prompt=="string"){prompt_len=prompt.length;prompt_node.html(encodeHTML(prompt)+" ")}else{prompt(function(string){prompt_len=string.length;prompt_node.html(encodeHTML(string)+" ")})}change_num_chars()}})();var keyboard_event=(function(){return function(e){if(enabled){var pos,len;if(e.keyCode==13){command=command.replace(/\s*(.*)\s*$/mg,"$1");if(history&&command){history.append(command)}var tmp=command;self.set("");if(typeof prompt=="function"){draw_prompt()}if(options.commands){options.commands(tmp)}}else{if(e.which==32){append(" ")}else{if(e.which==8){if(command!==""&&position>0){command=command.slice(0,position-1)+command.slice(position,command.length);--position;redraw()}}else{if(e.which==46){if(command!==""&&position<command.length){command=command.slice(0,position)+command.slice(position+1,command.length);redraw()}}else{if(history&&e.which==38||(e.which==80&&e.ctrlKey)){self.set(history.previous())}else{if(history&&e.which==40||(e.which==78&&e.ctrlKey)){self.set(history.next())}else{if(e.which==27){self.set("")}else{if(e.which==37||(e.which==66&&e.ctrlKey)){if(e.ctrlKey&&e.which!=66){len=position-1;pos=0;if(command[len]==" "){--len}for(var i=len;i>0;--i){if(command[i]==" "&&command[i+1]!=" "){pos=i+1;break}}self.position(pos)}else{if(position>0){--position;redraw()}}}else{if(e.which==39||(e.which==70&&e.ctrlKey)){if(e.ctrlKey&&e.which!=70){pos=position;len=command.length;if(command[pos]==" "){++pos}for(var i=pos;i<len;++i){if((command[i]==" "&&command[i-1]!=" ")||i==len-1){pos=i;break}}position=pos;redraw()}else{if(position<command.length){++position;redraw()}}}else{if(e.which==123){return true}else{if(e.which==36){self.position(0)}else{if(e.which==35){self.position(command.length)}else{if(e.metaKey){if(e.shiftKey){if(e.which==84){return true}}else{if(e.altKey){}else{if(e.which==65){self.position(0)}else{if(e.which==69){self.position(command.length)}else{if(e.which==88||e.which==67||e.which==87||e.which==84){return true}else{if(e.which==86){clip.focus();window.setTimeout(function(){var content=clip.val();if(position==command.length){command+=content}else{if(position===0){command=content+command}else{command=command.slice(0,position)+content+command.slice(postion)}}position+=content.length;redraw();clip.val("")},1);return true}else{if(e.which==75){if(position===0){self.set("")}else{if(position!=command.length){self.set(command.slice(0,position))}}}else{if(e.which==70){return true}else{if(e.which==17){return true}}}}}}}}}}else{if(e.altKey){if(e.which==68){pos=position;len=command.length;var space=null;for(var i=pos;i<len;++i){if(command[i]==" "){space=i+1;break}}if(space){command=command.slice(0,pos)+command.slice(space)}else{command=command.slice(0,pos)}redraw()}}else{return true}}}}}}}}}}}}}}return false}}})();function append(c){if(position==command.length){command+=c}else{command=command.slice(0,position)+c+command.slice(position)}++position;redraw()}$.extend(self,{name:function(string){if(string!==undefined){name=string;history=new History(string,options.cookie)}else{return name}},history:function(){return history},set:function(string){if(string!==undefined){command=string;position=command.length;redraw()}},commands:function(commands){if(commands){options.commands=commands}else{return commands}},destroy:function(){$(document.documentElement).unbind(".command_line");self.find(".prompt").remove()},prompt:function(user_prompt){if(user_prompt===undefined){return prompt}else{if(typeof user_prompt=="string"||typeof user_prompt=="function"){prompt=user_prompt}else{throw"prompt must be a function or string"}draw_prompt()}},position:function(n){if(typeof n=="number"){position=n;redraw()}else{return position}},resize:function(){change_num_chars();redraw()},enable:function(){self.everyTime(500,"blink",blink);enabled=true},isenabled:function(){return enabled},disable:function(){self.stopTime("blink",blink);self.find(".cursor").removeClass("inverted");enabled=false},mask:function(display){if(typeof display=="boolean"){mask=display;redraw()}else{return mask}}});self.name(options.name||"");prompt=options.prompt||">";draw_prompt();if(options.enabled===undefined&&!options.enabled){self.enable()}$(document.documentElement).keypress(function(e){if(enabled){if([38,32,13,40,0,8].has(e.which)&&!(e.which==40&&e.shiftKey)){return false}else{if(!(e.ctrlKey||e.altKey)){append(String.fromCharCode(e.which))}}}}).keydown(keyboard_event);return self};$.jrpc=function(url,id,method,params,success,error){var request=json_stringify({jsonrpc:"2.0",method:method,params:params,id:id});return $.ajax({url:url,data:request,success:success,error:error,contentType:"application/json",dataType:"json",async:true,cache:false,type:"POST"})};var terminals=new Cycle();$.fn.terminal=function(init_eval,options){var self=this;if(self.length===0){throw'Sorry, but terminal said that "'+self.selector+'" is not valid selector'}if(self.data("terminal")){return self.data("terminal")}self.addClass("terminal");var settings={name:null,greetings:"Wellcome to JQuery Terminal Emulator\nCopyright (C) 2010 Jakub Jankiewicz <http://jcubic.pl>",prompt:">",history:true,cookie:true,exit:true,enabled:true,login:null};var terminal_id=(function(){return terminals.length()})();if(options){if(options.width){self.width(options.width)}if(options.height){self.height(options.height)}$.extend(settings,options)}self.css("overflow","hidden");self.append('<div class="terminal-output"></div><div></div>');function get_num_chars(){self.find(".terminal-output").append('<span class="__test"> </span>');var test=self.find(".__test");var result=Math.floor(self.width()/test.width());test.remove();return result}var num_chars=get_num_chars();function display_exception(e,label){if(typeof e=="string"){self.echo("["+label+"]: "+e).addClass("error")}else{self.echo("["+label+"]: "+e.fileName+": "+e.message).addClass("error");self.pause();$.get(e.fileName,function(file){self.resume();self.echo("["+e.lineNumber+"]"+file.split("\n")[e.lineNumber-1]).addClass("error")})}}function valid(label,object){try{if(typeof object=="function"){object(function(){})}else{if(typeof object!="string"){var msg=label+" must be string or function";throw msg}}}catch(e){display_exception(e,label.toUpperCase());return false}return true}(function(){var pause=!settings.enabled;var output=self.find(".terminal-output");function scroll_to_bottom(terminal){terminal.scrollTop(self.attr("scrollHeight"))}$.extend(self,{clear:function(){output.html("");self.command_line.set("");self.attr({scrollTop:0})},paused:function(){return pause},pause:function(){if(self.command_line){self.disable();self.command_line.hide()}},resume:function(){if(self.command_line){self.enable();self.command_line.show();scroll_to_bottom(self)}},resize:function(width,height){self.width(width);self.height(height);scroll_to_bottom(self);num_chars=get_num_chars();self.command_line.resize()},focus:function(toggle){if(terminals.length()==1){self.oneTime(100,function(){if(toggle===undefined||toggle){terminals.front().enable()}else{terminals.front().disable()}})}else{if(terminals.length()>0){if(toggle===undefined||toggle){if(terminals.front()===self){self.enable()}else{terminals.front().disable();terminals.set(self);self.enable()}scroll_to_bottom(self)}else{self.disable();self.oneTime(100,function(){terminals.rotate().enable();scroll_to_bottom(terminals.front())})}}}},enable:function(){if(self.command_line){self.command_line.enable();pause=false}},disable:function(){if(self.command_line){pause=true;self.command_line.disable()}},set_prompt:function(prompt){if(valid("prompt",prompt)){self.command_line.prompt(prompt)}},echo:function(object,options){var string=typeof object=="string"?object:String(object);var div;if(options&&options.raw){div=$("<div>"+string+"</div>")}else{if(string.length>num_chars){var array=string.split("\n");div=$("<div></div>");var len=array.length;for(var i=0;i<len;++i){if(array[i]===""||array[i]=="\r"){div.append("<div> </div>")}else{if(array[i].length>num_chars){$.each(str_parts(array[i],num_chars),function(i,string){div.append("<div>"+encodeHTML(string)+"</div>")})}else{div.append("<div>"+encodeHTML(array[i])+"</div>")}}}}else{div=$("<div>"+encodeHTML(string)+"</div>")}}output.append(div);div.width("100%");scroll_to_bottom(self);return div},error:function(message){return self.echo(message).addClass("error")},scroll:function(amount){if(amount>self.attr("scrollTop")&&amount>0){self.attr("scrollTop",0)}var pos=self.attr("scrollTop");self.attr("scrollTop",pos+amount)},logout:settings.login?function(){while(interpreters.size()>1){interpreters.pop()}logout()}:function(){throw"You don't have login function"},token:settings.login?function(){return $.cookie("token"+(settings.name?"_"+settings.name:""))}:null,login_name:settings.login?function(){return $.cookie("login_"+(settings.name?"_"+settings.name:""))}:null,name:function(){return settings.name},push:function(_eval,options){if(!options.prompt||valid("prompt",options.prompt)&&(options.greetings!==null||options.preetings!==false||valid("greetings",options.greetings))){if(typeof _eval=="string"){_eval=make_json_rpc_eval_fun(options["eval"],self)}interpreters.push({name:options.name,"eval":_eval,prompt:options.prompt,login:options.login,greetings:options.greetings});if(options.login){login()}else{prepare_top_interpreter(true)}}},pop:function(){echo_command("");if(interpreters.top().name===settings.name){if(settings.login){logout()}else{return null}}else{var current=interpreters.pop();prepare_top_interpreter();return current}}})})();function make_json_rpc_eval_fun(url,terminal){var id=1;var service=function(method,params){terminal.pause();$.jrpc(url,id++,method,params,function(json){if(!json.error){if(typeof json.result=="string"){terminal.echo(json.result)}else{if(json.result instanceof Array){terminal.echo(json.result.join(" "))}else{if(typeof json.result=="object"){var string="";for(var f in json.result){if(json.result.hasOwnProperty(f)){string+=f+": "+json.result[f]+"\n"}}terminal.echo(string)}}}}else{terminal.error("[RPC] "+json.error.message)}terminal.resume()},function(xhr,status,error){terminal.error("[AJAX] "+status+" - Server reponse is: \n"+xhr.responseText);terminal.resume()})};return function(command,terminal){if(command===""){return}var method,params;if(!command.match(/[^ ]* /)){method=command;params=[]}else{command=command.split(" ");method=command[0];params=command.slice(1)}if(!settings.login||method=="help"){service(method,params)}else{var token=terminal.token();if(token){service(method,[token].concat(params))}else{terminal.error("[AUTH] Access denied (no token)")}}}}var url;if(typeof init_eval=="string"){url=init_eval;init_eval=make_json_rpc_eval_fun(init_eval,self)}if(url&&typeof settings.login=="string"||url){settings.login=(function(method){var id=1;return function(user,passwd,callback){self.pause();$.jrpc(url,id++,method,[user,passwd],function(response){self.resume();if(!response.error&&response.result){callback(response.result)}else{callback(null)}},function(xhr,status,error){self.resume();self.error("[AJAX] Response: "+status+"\n"+xhr.responseText)})}})(typeof settings.login=="boolean"?"login":settings.login)}function echo_command(command){var prompt=self.command_line.prompt();if(self.command_line.mask()){command=command.replace(/./g,"*")}if(typeof prompt=="function"){prompt(function(string){self.echo(string+" "+command)})}else{self.echo(prompt+" "+command)}}function commands(command){try{var interpreter=interpreters.top();if(command=="exit"&&settings.exit){if(interpreters.size()==1){if(settings.login){logout()}else{var msg="You can exit from main interpeter";self.echo(msg)}}else{terminal.pop()}}else{echo_command(command)}interpreter["eval"](command,self)}catch(e){display_exception(e,"USER");throw e}}function login(){var user=null;self.command_line.prompt("login:");if(settings.history){self.command_line.history().disable()}self.command_line.commands(function(command){try{echo_command(command);if(!user){user=command;self.command_line.prompt("password:");self.command_line.mask(true)}else{self.command_line.mask(false);settings.login(user,command,function(user_data){if(user_data){if(!settings.cookie){self.token=function(){return user_data};self.login=function(){return user}}else{var name=(settings.name?"_"+settings.name:"");$.cookie("token"+name,user_data);$.cookie("login"+name,user)}self.command_line.commands(commands);prepare_top_interpreter(true)}else{self.error("Wrong password try again");self.command_line.prompt("login:");user=null}self.resume()})}}catch(e){display_exception(e,"LOGIN",self);throw e}})}function logout(){$.cookie("token"+(settings.name?"_"+settings.name:""),null);$.cookie("login_"+(settings.name?"_"+settings.name:""),null);if(settings.history){self.command_line.history().disable()}login()}function prepare_top_interpreter(greetings){var interpreter=interpreters.top();var name="";if(interpreter.name!==undefined&&interpreter.name!==""){name+=interpreter.name+"_"}name+=terminal_id;self.command_line.name(name);self.command_line.prompt(interpreter.prompt);if(settings.history){self.command_line.history().enable()}self.command_line.set("");if(greetings){if(typeof interpreter.greetings=="function"){try{interpreter.greetings(function(user_string){self.echo(user_string)})}catch(e){display_exception(e,"GREETINGS",self);throw e}}else{if(typeof interpreter.greetings=="string"){self.echo(interpreter.greetings)}}}}function key_press(e){if(!self.paused()){if(e.charCode==100&&e.metaKey&&settings.exit){if(settings.name==interpreters.top().name&&!settings.login){self.echo("you can't exit from top interpreter")}else{self.pop()}return false}else{if(e.charCode==118&&e.ctrlKey){window.setTimeout(function(){self.attr({scrollTop:self.attr("scrollHeight")})},1);return true}else{if(e.which==34){self.scroll(self.height())}else{if(e.which==33){self.scroll(-self.height())}else{self.attr({scrollTop:self.attr("scrollHeight")})}}}}}}if(valid("prompt",settings.prompt)&&(settings.greetings!==null||settings.greetings!==false||valid("greetings",settings.greetings))){var interpreters=new Stack({name:settings.name,"eval":init_eval,prompt:settings.prompt,greetings:settings.greetings});self.command_line=self.find(".terminal-output").next().cmd({prompt:settings.prompt,history:settings.history,width:"100%",cookie:settings.cookie,commands:commands});terminals.append(self);if(settings.enabled){self.focus()}else{self.disable()}self.click(self.focus);$(document.documentElement).keypress(key_press);if(self.token&&!self.token()&&self.login_name&&!self.login_name()){login()}else{prepare_top_interpreter(true)}self.mousewheel(function(event,delta){if(delta>0){self.scroll(-40)}else{self.scroll(40)}return false},true)}self.data("terminal",self);return self}})(jQuery);
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