/WebVox/src/com/marvin/webvox/ScriptListActivity.java

  1/*
  2 * Copyright (C) 2008 Google Inc.
  3 * 
  4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
  5 * use this file except in compliance with the License. You may obtain a copy of
  6 * the License at
  7 * 
  8 * http://www.apache.org/licenses/LICENSE-2.0
  9 * 
 10 * Unless required by applicable law or agreed to in writing, software
 11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 13 * License for the specific language governing permissions and limitations under
 14 * the License.
 15 */
 16
 17package com.marvin.webvox;
 18
 19import java.io.File;
 20import java.io.FileFilter;
 21import java.io.FilenameFilter;
 22import java.util.Collections;
 23import java.util.LinkedList;
 24import java.util.List;
 25
 26import android.app.Activity;
 27import android.app.AlertDialog;
 28import android.app.ListActivity;
 29import android.app.SearchManager;
 30import android.content.DialogInterface;
 31import android.content.Intent;
 32import android.content.DialogInterface.OnClickListener;
 33import android.database.Cursor;
 34import android.net.Uri;
 35import android.os.Bundle;
 36import android.os.Environment;
 37import android.util.Log;
 38import android.view.ContextMenu;
 39import android.view.Menu;
 40import android.view.MenuItem;
 41import android.view.View;
 42import android.view.MenuItem.OnMenuItemClickListener;
 43import android.widget.AdapterView;
 44import android.widget.CheckBox;
 45import android.widget.SimpleCursorAdapter;
 46import android.widget.Toast;
 47import android.widget.AdapterView.OnItemClickListener;
 48import android.widget.SimpleCursorAdapter.ViewBinder;
 49
 50public class ScriptListActivity extends ListActivity {
 51	
 52	public final static String TAG = ScriptListActivity.class.toString();
 53	
 54	private ScriptDatabase scriptdb = null;
 55	private SimpleCursorAdapter adapter = null;
 56	
 57	public void onCreate(Bundle icicle) {
 58		super.onCreate(icicle);
 59		setContentView(R.layout.act_scriptlist);
 60
 61		this.scriptdb = new ScriptDatabase(this);
 62
 63		final Cursor cur = scriptdb.getScripts();
 64		this.startManagingCursor(cur);
 65		
 66		adapter = new SimpleCursorAdapter(this, R.layout.item_script, cur, 
 67				new String[] { ScriptDatabase.FIELD_SCRIPT_NAME, ScriptDatabase.FIELD_SCRIPT_DESCRIP, ScriptDatabase.FIELD_SCRIPT_ENABLED }, 
 68				new int[] { R.id.script_title, R.id.script_descrip, R.id.script_enabled });
 69		
 70		adapter.setViewBinder(new ViewBinder() {
 71			public boolean setViewValue(View view, Cursor cursor, int columnIndex) {
 72				switch(view.getId()) {
 73				case R.id.script_enabled: {
 74					if(!(view instanceof CheckBox)) return false;
 75					int value = cursor.getInt(columnIndex);
 76					((CheckBox)view).setChecked((value == 1));
 77					return true;
 78					}
 79				}
 80				return false;
 81			}
 82		});
 83		
 84		this.getListView().setOnItemClickListener(new OnItemClickListener() {
 85			public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
 86				// toggle checked status and refresh our cursor
 87				scriptdb.toggleEnabled(id);
 88				cur.requery();
 89				
 90			}
 91		});
 92		
 93		this.setListAdapter(adapter);
 94		this.registerForContextMenu(this.getListView());
 95	
 96	}
 97	
 98	public void onDestroy() {
 99		super.onDestroy();
100		this.scriptdb.close();
101	}
102	
103
104	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
105		final AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo)menuInfo;
106		
107		MenuItem delete = menu.add(R.string.manage_delete);
108		delete.setOnMenuItemClickListener(new OnMenuItemClickListener() {
109			public boolean onMenuItemClick(MenuItem item) {
110				scriptdb.deleteScript(info.id);
111				adapter.getCursor().requery();
112				return true;
113			}
114		});
115
116	}
117	
118	/**
119	 * File filter to show only user scripts (*.user.js)
120	 */
121	protected FilenameFilter userScriptFilter = new FilenameFilter() {
122		public boolean accept(File path, String filename) {
123			return filename.endsWith(".user.js");
124		}
125	};
126
127	public boolean onCreateOptionsMenu(Menu menu) {
128		super.onCreateOptionsMenu(menu);
129		
130		MenuItem find = menu.add(R.string.manage_find);
131		find.setIcon(android.R.drawable.ic_menu_add);
132		find.setOnMenuItemClickListener(new OnMenuItemClickListener() {
133			public boolean onMenuItemClick(MenuItem item) {
134				// launch back around to specific url
135				Intent intent = new Intent(ScriptListActivity.this, BrowserActivity.class);
136				intent.putExtra(SearchManager.QUERY, "http://userscripts.org/scripts/search?q=android");
137				ScriptListActivity.this.startActivity(intent);
138				return true;
139			}
140		});
141		
142		MenuItem imp = menu.add(R.string.manage_import);
143		imp.setIcon(android.R.drawable.ic_menu_upload);
144		imp.setOnMenuItemClickListener(new OnMenuItemClickListener() {
145			public boolean onMenuItemClick(MenuItem item) {
146				// show file browser to pick script
147				
148				// code adapted from connectbot project:
149				// http://connectbot.googlecode.com/svn/trunk/connectbot/src/org/connectbot/PubkeyListActivity.java
150				
151				// TODO: replace this with well-known intent over to file browser
152				// TODO: if browser not installed (?) then fallback to this simple method?
153				
154				// build list of all files in sdcard root
155				final File sdcard = Environment.getExternalStorageDirectory();
156				
157				// Don't show a dialog if the SD card is completely absent.
158				final String state = Environment.getExternalStorageState();
159				if (Environment.MEDIA_REMOVED.equals(state)
160						|| Environment.MEDIA_BAD_REMOVAL.equals(state)
161						|| Environment.MEDIA_UNMOUNTABLE.equals(state)
162						|| Environment.MEDIA_UNMOUNTED.equals(state)) {
163					
164					Toast.makeText(ScriptListActivity.this, R.string.manage_pick_error, Toast.LENGTH_SHORT).show();
165					return true;
166				}
167				
168				final String[] namesList = sdcard.list(userScriptFilter);
169
170				// prompt user to select any file from the sdcard root
171				new AlertDialog.Builder(ScriptListActivity.this)
172					.setTitle(R.string.manage_pick)
173					.setItems(namesList, new OnClickListener() {
174						public void onClick(DialogInterface arg0, int arg1) {
175							// find the exact file selected
176							String name = namesList[arg1];
177							try {
178								String raw = Util.getFileString(new File(sdcard, name));
179								scriptdb.insertScript(null, raw);
180								Toast.makeText(ScriptListActivity.this, R.string.manage_import_success, Toast.LENGTH_SHORT).show();
181							} catch(Exception e) {
182								Log.e(TAG, "Problem while trying to import script", e);
183								Toast.makeText(ScriptListActivity.this, R.string.manage_import_fail, Toast.LENGTH_SHORT).show();
184							}
185						}
186					})
187					.setNegativeButton(android.R.string.cancel, null).create().show();
188				
189				return true;
190			}
191		});
192
193		return true;
194	}
195
196}