package net.oschina.app.widget;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.Stack;
import net.oschina.app.R;
import net.oschina.app.adapter.ListViewPathAdapter;
import net.oschina.app.adapter.ListViewPathAdapter.OnPathOperateListener;
import net.oschina.app.common.FileUtils;
import net.oschina.app.common.FileUtils.PathStatus;
import net.oschina.app.common.StringUtils;
import net.oschina.app.common.UIHelper;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.view.Window;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemLongClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.TextView;
/**
* 路径选择弹
* @author yeguozhong@yeah.net
*
*/
public class PathChooseDialog extends Dialog {
private ListView lv;
private Button btnComfirm;
private Button btnBack;
private Button btnNew;
private TextView tvCurPath;
private Context ctx;
private List<String> data;
private ListAdapter listAdapter;
private ChooseCompleteListener listener;
private Stack<String> pathStack = new Stack<String>();
private int firstIndex = 0;
private boolean isBack = false;
private View lastSelectItem; //上一个长按操作的View
//监听操作事件
private OnPathOperateListener pListener = new OnPathOperateListener() {
@Override
public void onPathOperate(int type, final int position,
final TextView pathName) {
if (type == OnPathOperateListener.DEL) {
String path = data.get(position);
int rs = FileUtils.deleteBlankPath(path);
if (rs == 0) {
data.remove(position);
refleshListView(data, firstIndex);
UIHelper.ToastMessage(ctx, "删除成功");
} else if (rs == 1) {
UIHelper.ToastMessage(ctx, "没有权限");
} else if (rs == 2) {
UIHelper.ToastMessage(ctx, "不能删除非空目录");
}
} else if (type == OnPathOperateListener.RENAME) {
final EditText et = new EditText(ctx);
et.setText(FileUtils.getPathName(data.get(position)));
AlertDialog.Builder builder = new AlertDialog.Builder(ctx);
builder.setTitle("重命名");
builder.setView(et);
builder.setCancelable(true);
builder.setPositiveButton("确定", new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
String input = et.getText().toString();
if (StringUtils.isEmpty(input)) {
UIHelper.ToastMessage(ctx, "输入不能为空");
} else {
String newPath = pathStack.peek() + File.separator
+ input;
boolean rs = FileUtils.reNamePath(
data.get(position), newPath);
if (rs == true) {
pathName.setText(input);
data.set(position, newPath);
UIHelper.ToastMessage(ctx, "重命名成功");
} else {
UIHelper.ToastMessage(ctx, "重命名失败");
}
}
dialog.dismiss();
}
});
builder.setNegativeButton("取消", new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
builder.create().show();
}
}
};
public interface ChooseCompleteListener {
void onComplete(String finalPath);
}
public PathChooseDialog(Context context, ChooseCompleteListener listener) {
super(context);
this.ctx = context;
this.listener = listener;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.file_path_chooser);
setCanceledOnTouchOutside(true);
init();
}
/**
* 初始化
*/
private void init() {
lv = (ListView) findViewById(android.R.id.list);
btnComfirm = (Button) findViewById(R.id.btn_comfirm);
btnBack = (Button) findViewById(R.id.btn_back);
btnNew = (Button) findViewById(R.id.btn_new);
tvCurPath = (TextView) findViewById(R.id.tv_cur_path);
//获得内置SD卡的根路径
String rootPath = null;
if (FileUtils.checkExternalSDExists()) {
rootPath = "/storage";
data = new ArrayList<String>();
data.add(FileUtils.getSDRoot());
data.add(FileUtils.getExternalSDRoot());
} else {
rootPath = Environment.getExternalStorageDirectory()
.getAbsolutePath();
data = FileUtils.listPath(rootPath);
}
tvCurPath.setText(rootPath);
pathStack.add(rootPath);
refleshListView(data, 0);
//单击
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
firstIndex = position;
String currentPath = data.get(position);
tvCurPath.setText(currentPath);
data = FileUtils.listPath(currentPath);
pathStack.add(currentPath);
refleshListView(data, pathStack.size() - 1);
}
});
//长按
lv.setOnItemLongClickListener(new OnItemLongClickListener() {
@Override
public boolean onItemLongClick(AdapterView<?> parent, View view,
int position, long id) {
if(lastSelectItem!=null&&!lastSelectItem.equals(view)){
lastSelectItem.findViewById(R.id.ll_op).setVisibility(View.GONE);
}
LinearLayout llOp = (LinearLayout) view
.findViewById(R.id.ll_op);
int visible = llOp.getVisibility() == View.GONE ? View.VISIBLE
: View.GONE;
llOp.setVisibility(visible);
lastSelectItem = view;
return true;
}
});
//确认
btnComfirm.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
listener.onComplete(pathStack.peek());
dismiss();
}
});
//后退
btnBack.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (pathStack.size() >= 2) {
isBack = true;
pathStack.pop();
data = FileUtils.listPath(pathStack.peek());
tvCurPath.setText(pathStack.peek());
refleshListView(data, firstIndex);
}
}
});
//新建
btnNew.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final EditText et = new EditText(ctx);
et.setText("新建文件夹");
AlertDialog.Builder builder = new AlertDialog.Builder(ctx);
builder.setTitle("新建文件夹");
builder.setView(et);
builder.setCancelable(true);
builder.setPositiveButton("确定", new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
String rs = et.getText().toString();
if (StringUtils.isEmpty(rs)) {
UIHelper.ToastMessage(ctx, "输入不能为空");
} else {
String newPath = pathStack.peek() + File.separator
+ rs;
PathStatus status = FileUtils.createPath(newPath);
switch (status) {
case SUCCESS:
data.add(newPath);
refleshListView(data, data.size()-1);
UIHelper.ToastMessage(ctx, "创建成功");
break;
case ERROR:
UIHelper.ToastMessage(ctx, "创建失败");
break;
case EXITS:
UIHelper.ToastMessage(ctx, "文件名重复");
break;
}
}
dialog.dismiss();
}
});
builder.setNegativeButton("取消", new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
builder.create().show();
}
});
}
/**
* 更新listView视图
*
* @param data
*/
private void refleshListView(List<String> data, int firstItem) {
String lost = FileUtils.getSDRoot() + "lost+found";
data.remove(lost);
listAdapter = new ListViewPathAdapter(ctx, data,
R.layout.file_path_listitem, pListener);
lv.setAdapter(listAdapter);
lv.setSelection(firstItem);
}
}