FileManagerFragment.java

/*
 * Protocoder 
 * A prototyping platform for Android devices 
 * 
 * Victor Diaz Barrales victormdb@gmail.com
 *
 * Copyright (C) 2014 Victor Diaz
 * Copyright (C) 2013 Motorola Mobility LLC
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the Software
 * is furnished to do so, subject to the following conditions: 
 * 
 * The above copyright notice and this permission notice shall be included in all 
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 
 * THE SOFTWARE.
 * 
 */

package org.protocoder.fragments;

import android.annotation.SuppressLint;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.util.AttributeSet;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.MimeTypeMap;
import android.widget.AdapterView;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import org.protocoder.R;
import org.protocoderrunner.base.BaseFragment;
import org.protocoderrunner.project.Project;
import org.protocoderrunner.project.ProjectManager;

import java.io.File;
import java.lang.ref.WeakReference;
import java.util.ArrayList;

@SuppressLint("NewApi")
public class FileManagerFragment extends BaseFragment {

	public ArrayList<File> files;
	protected FileAdapter projectAdapter;
	protected ListView llFileView;
	private String name;
	private String folder;

	public FileManagerFragment() {
	}

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		Bundle bundle = getArguments();

		if (bundle != null) {
			this.name = bundle.getString(Project.NAME);
			this.folder = bundle.getString(Project.FOLDER);
		}
	}

	@Override
	public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

		View v = inflater.inflate(R.layout.fragment_file_manager, container, false);

		// Get ListView and set adapter
		llFileView = (ListView) v.findViewById(R.id.llFile);
		Project p = ProjectManager.getInstance().get(folder, name);
		files = ProjectManager.getInstance().listFilesInProject(p);

		// get files
		projectAdapter = new FileAdapter(getActivity(), folder, files);
		llFileView.setEmptyView(v.findViewById(R.id.empty_list_view));
		// set the emptystate
		llFileView.setAdapter(projectAdapter);

		notifyAddedProject();
		registerForContextMenu(llFileView);

		llFileView.setOnItemClickListener(new OnItemClickListener() {
			@Override
			public void onItemClick(AdapterView<?> parent, final View v, final int position, long id) {

			}
		});

		return v;
	}

	protected void deleteFile(int position) {

		File dir = new File(files.get(position).getAbsolutePath());

		if (dir.isDirectory()) {
			String[] children = dir.list();
			for (String element : children) {
				new File(dir, element).delete();
			}
		}
		dir.delete();

		files.remove(position);

		projectAdapter.notifyDataSetChanged();
		llFileView.invalidateViews();
	}

	public void clear() {
		llFileView.removeAllViews();
		projectAdapter.notifyDataSetChanged();
	}

	public void notifyAddedProject() {

		projectAdapter.notifyDataSetChanged();
		llFileView.invalidateViews();
	}

	@Override
	public View getView() {
		return super.getView();
	}

	@Override
	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
		super.onCreateContextMenu(menu, v, menuInfo);
		MenuInflater inflater = getActivity().getMenuInflater();
		inflater.inflate(R.menu.file_list, menu);
	}

	@Override
	public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
		super.onCreateOptionsMenu(menu, inflater);
	}

	@Override
	public boolean onContextItemSelected(MenuItem item) {

		if (getUserVisibleHint()) {
			// Handle menu events and return true
		} else {
			return false; // Pass the event to the next fragment
		}

		AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
		final int index = info.position;

		File file = files.get(index);

		int itemId = item.getItemId();
		if (itemId == R.id.menu_project_list_run) {
			return true;
		} else if (itemId == R.id.menu_project_list_view) {
			viewFile(index);
			return true;
		} else if (itemId == R.id.menu_project_list_delete) {
			DialogInterface.OnClickListener dialogClickListener = new DialogInterface.OnClickListener() {
				@Override
				public void onClick(DialogInterface dialog, int which) {
					switch (which) {
					case DialogInterface.BUTTON_POSITIVE:
						// Yes button clicked
						deleteFile(index);
						break;

					case DialogInterface.BUTTON_NEGATIVE:
						// No button clicked
						break;
					}
				}
			};
			AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
			builder.setMessage("Are you sure?").setPositiveButton("Yes", dialogClickListener)
					.setNegativeButton("No", dialogClickListener).show();
			return true;
		} else if (itemId == R.id.menu_project_list_share_with) {

			return true;

		} else {
			return super.onContextItemSelected(item);
		}
	}

	private void viewFile(int index) {
		MimeTypeMap myMime = MimeTypeMap.getSingleton();

		Intent newIntent = new Intent(android.content.Intent.ACTION_VIEW);

		// Intent newIntent = new Intent(Intent.ACTION_VIEW);
		String mimeType = myMime.getMimeTypeFromExtension(fileExt(files.get(index).getName()).substring(1));
		newIntent.setDataAndType(Uri.fromFile(files.get(index)), mimeType);
		newIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
		try {
			getActivity().startActivity(newIntent);
		} catch (android.content.ActivityNotFoundException e) {
			Toast.makeText(getActivity(), "No handler for this type of file.", Toast.LENGTH_LONG).show();
		}

		Intent myIntent = new Intent(Intent.ACTION_VIEW);
		myIntent.setData(Uri.fromFile(files.get(index)));
		Intent j = Intent.createChooser(myIntent, "Choose an application to open with:");
		startActivity(j);

	}

	private String fileExt(String url) {
		if (url.indexOf("?") > -1) {
			url = url.substring(0, url.indexOf("?"));
		}
		if (url.lastIndexOf(".") == -1) {
			return null;
		} else {
			String ext = url.substring(url.lastIndexOf("."));
			if (ext.indexOf("%") > -1) {
				ext = ext.substring(0, ext.indexOf("%"));
			}
			if (ext.indexOf("/") > -1) {
				ext = ext.substring(0, ext.indexOf("/"));
			}
			return ext.toLowerCase();

		}
	}

	@Override
	public void onActivityCreated(Bundle savedInstanceState) {
		super.onActivityCreated(savedInstanceState);
	}

	@Override
	public void onPause() {
		super.onPause();

	}

	@Override
	public void onResume() {
		super.onResume();
//		getActivity().getActionBar().setDisplayHomeAsUpEnabled(false);
	}

	@Override
	public void onDestroy() {
		super.onDestroy();
	}

	public class FileAdapter extends BaseAdapter {
		private final WeakReference<Context> mContext;

		ArrayList<File> files;
		private final String projectFolder;

		public FileAdapter(Context c, String projectFolder, ArrayList<File> files) {
			mContext = new WeakReference<Context>(c);
			this.files = files;
			this.projectFolder = projectFolder;
		}

		@Override
		public int getCount() {
			return files.size();
		}

		@Override
		public Object getItem(int position) {
			return files.get(position);
		}

		@Override
		public long getItemId(int position) {
			return position;
		}

		// create a new ImageView for each item referenced by the Adapter
		@Override
		public View getView(int position, View convertView, ViewGroup parent) {
			final FileItem customView;

			if (convertView == null) { // if it's not recycled, initialize some
				// attributes
				customView = new FileItem(mContext.get());
				customView.setImage(R.drawable.protocoder_script_project);

				customView.setText(files.get(position).getName());

			} else {
				customView = (FileItem) convertView;
				customView.setText(files.get(position).getName());
			}
			customView.setTag(files.get(position).getName());

			return customView;
		}
	}

	public class FileItem extends LinearLayout {

		private WeakReference<View> v;
		// private Context c;
		private WeakReference<Context> c;

		public FileItem(Context context) {
			super(context);
			this.c = new WeakReference<Context>(context);
			LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
			this.v = new WeakReference<View>(inflater.inflate(R.layout.view_file_item, this, true));
		}

		public FileItem(Context context, AttributeSet attributeSet) {
			super(context, attributeSet);

		}

		public void setImage(int resId) {
			ImageView imageView = (ImageView) v.get().findViewById(R.id.img_file);
			imageView.setImageResource(resId);
		}

		public void setText(String text) {
			TextView textView = (TextView) v.get().findViewById(R.id.txt_file_name);
			// TextUtils.changeFont(c.get(), textView, Fonts.MENU_TITLE);
			textView.setText(text);
		}
	}

}