main.aau

import win.ui;
/*DSG{{*/
var mainForm = ..win.form(text="歌词下载器";right=640;bottom=480;border="none")
mainForm.add()
/*}}*/

import web.layout; 
import web.layout.behavior.windowCommand;
import web.layout.behavior.tabs;


var wbLayout = web.layout( mainForm )

if( _STUDIO_INVOKED ){
	import web.layout.debug;
	wbLayout.attachEventHandler( web.layout.debug );
}
var i = 0;
namespace web.layout.behavior.command{
	onMouseClick = function( ltTarget,ltOwner,x,y,ltMouseParams ) {
		var id = ltOwner.getAttribute("id");
		
		import fsys.dlg;
		import thread;
		
		if("openDir" == id){
			var dir = fsys.dlg.opendir("/");
			if(!dir) return;
			//设置按钮的位置
			var btn = wbLayout.querySelector(".empty-div");
			btn.setAttribute("style","margin-top:15px;");
			btn.querySelector("#openDir").innerHTML = "切换歌曲目录";
			var listtable = wbLayout.querySelector("#list-table");
			listtable.setAttribute("style","display:block");
			btn.querySelector("#startDl").setAttribute("style","display:inline");
			var th = /*
				<tr>
	    			<th style="border-left:1px solid #BFBFBF;" width="10%">序号</th>
	    			<th width="80%">歌曲名</th>
	    			<th width="10%">状态</th>
	    		</tr>
			*/
			listtable.innerHTML = th;
			i = 0;
			listFile(listtable,dir);	
		}
		else if("startDl" == id){
			var listtable = wbLayout.querySelector("#list-table");
			var undownloadtr = listtable.querySelectorAll("tr[status='0']");
			if(#undownloadtr == 0) return;
			
			import thread.command;
			var listener = thread.command();
			
			listener.download = function(){
        		import string;
				import inet.whttp;
				import inet.httpFile;
				for(k,v in undownloadtr){
					var trele = v;
					whttp=inet.whttp();	
					var source = whttp.get("http://music.baidu.com/search/lrc?key=" + v.getAttribute("fn"));
					whttp.close();
					source = string.fromto(source);
					var preffix = 'title="'+ trele.getAttribute("fn") +'"';
					if(string.indexOf(source, preffix) == null){
						trele.querySelectorAll("td")[3].innerHTML = "没有找到";
						continue;
					}
					source = string.sub(source,string.indexOf(source, preffix),string.len(source));
					//下载地址
					var url = "http://music.baidu.com" + intercept(source, "down-lrc-btn { 'href':'", "' }");
					
					var remoteFile = inet.httpFile(url ,trele.getAttribute("lrcpath"));
					
					//下载文件
					var ok,err,fileSize = remoteFile.download();
					if(ok){
						trele.querySelectorAll("td")[3].innerHTML = "<font color='green'>已下载</font>";
						trele.setAttribute("status", "1");
					}else{
						trele.querySelectorAll("td")[3].innerHTML = "<font color='red'>下载错误</font>";
					}
					remoteFile.close();
					wbLayout.updateWindow();
					fsys.delete(trele.getAttribute("lrcpath") + ".dow!oad");
				}
			}
			import.win;
			win.invoke(
    			function(){ 
        			//必须在线程函数内部导入需要的库
        			import thread.command;
        			//调用界面线程的命令
        			thread.command.download();
    			}
			);
		}
					
	}
	
	/*字符串截取*/
	function intercept(source, preffix, suffix){
		var s = string.sub(source, string.indexOf(source, preffix) + string.len(preffix), string.len(source));
		s = string.sub(s, 0, string.indexOf(s, suffix) - 1);
		return s;
	}
	
	/*加载目录下的音频文件*/
	function listFile(listtable,dir){
		import string;
		import io;
		fsys.enum( dir, "*.*",
			function(dir,filename,fullpath,findData){ 
				if(filename){
					if(string.endWith(filename,".mp3") || string.endWith(filename,".wma")){
						var fullfn = string.sub(fullpath,0,string.lastIndexAny(fullpath,".") - 1);
						var fn = string.sub(filename,0,string.lastIndexAny(filename,".") - 1);
						i++;
						var statusName = "未下载";
						var status = 0;
						if(io.exist(fullfn + ".lrc")){
							statusName = "<font color='green'>已下载</font>";
							status = 1;
						}
						html = "<tr status='"+status+"' fn='"+fn+"' fullpath='"+fullpath+"' dir='"+dir+"' lrcpath='"+(fullfn + ".lrc")+"'>"+
	    							"<td class='ft'>"+i+"</td>"+
	    							"<td>"+filename+"</td>"+
	    							"<td>"+statusName+"</td>"+
	    						"</tr>";
	    				listtable.insertAdjacentHTML("beforeEnd", html);
					}					
				}
				else{
					listFile(listtable,fullpath);
				}
			} 
			,false
		);
	}
}

wbLayout.go("/layout/main.html");
 
import win.ui.shadow;
win.ui.shadow(mainForm); //添加阴影边框

mainForm.show() 
return win.loopMessage();