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462 lines
16 KiB
Java
462 lines
16 KiB
Java
/*
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* ASTRID: Android's Simple Task Recording Dashboard
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*
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* Copyright (c) 2009 Tim Su
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package com.timsu.astrid.activities;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.Map;
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import android.app.Activity;
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import android.app.AlertDialog;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.content.res.Resources;
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import android.database.Cursor;
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import android.os.Bundle;
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import android.view.ContextMenu;
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import android.view.Menu;
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import android.view.MenuItem;
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import android.view.View;
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import android.view.ContextMenu.ContextMenuInfo;
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import android.view.View.OnCreateContextMenuListener;
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import android.widget.AdapterView;
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import android.widget.Button;
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import android.widget.ListView;
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import android.widget.AdapterView.OnItemClickListener;
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import com.timsu.astrid.R;
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import com.timsu.astrid.activities.TaskListAdapter.TaskListAdapterHooks;
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import com.timsu.astrid.data.tag.TagController;
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import com.timsu.astrid.data.tag.TagIdentifier;
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import com.timsu.astrid.data.tag.TagModelForView;
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import com.timsu.astrid.data.task.TaskController;
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import com.timsu.astrid.data.task.TaskIdentifier;
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import com.timsu.astrid.data.task.TaskModelForList;
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import com.timsu.astrid.utilities.Constants;
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import com.timsu.astrid.utilities.StartupReceiver;
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/** Primary view for the Astrid Application. Lists all of the tasks in the
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* system, and allows users to edit them.
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*
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* @author Tim Su (timsu@stanfordalumni.org)
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*
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*/
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public class TaskList extends Activity {
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// bundle tokens
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public static final String TAG_TOKEN = "tag";
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// activities
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private static final int ACTIVITY_CREATE = 0;
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private static final int ACTIVITY_VIEW = 1;
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private static final int ACTIVITY_EDIT = 2;
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private static final int ACTIVITY_TAGS = 3;
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// menu codes
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private static final int INSERT_ID = Menu.FIRST;
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private static final int FILTERS_ID = Menu.FIRST + 1;
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private static final int TAGS_ID = Menu.FIRST + 2;
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private static final int SETTINGS_ID = Menu.FIRST + 3;
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private static final int CONTEXT_FILTER_HIDDEN = Menu.FIRST + 20;
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private static final int CONTEXT_FILTER_DONE = Menu.FIRST + 21;
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private static final int CONTEXT_FILTER_TAG = Menu.FIRST + 22;
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// UI components
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private TaskController controller;
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private TagController tagController = null;
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private ListView listView;
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private Button addButton;
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// other instance variables
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private Map<TagIdentifier, TagModelForView> tagMap;
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private List<TaskModelForList> taskArray;
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private Map<TaskModelForList, List<TagModelForView>> taskTags;
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private boolean filterShowHidden = false;
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private boolean filterShowDone = false;
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private TagModelForView filterTag = null;
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static boolean shouldCloseInstance = false;
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/* ======================================================================
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* ======================================================= initialization
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* ====================================================================== */
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@Override
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/** Called when loading up the activity for the first time */
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.task_list);
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StartupReceiver.onStartupApplication(this);
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shouldCloseInstance = false;
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controller = new TaskController(this);
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controller.open();
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tagController = new TagController(this);
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tagController.open();
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listView = (ListView)findViewById(R.id.tasklist);
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addButton = (Button)findViewById(R.id.addtask);
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addButton.setOnClickListener(new
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View.OnClickListener() {
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@Override
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public void onClick(View v) {
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createTask();
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}
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});
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fillData();
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}
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@Override
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public boolean onCreateOptionsMenu(Menu menu) {
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super.onCreateOptionsMenu(menu);
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MenuItem item;
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item = menu.add(Menu.NONE, INSERT_ID, Menu.NONE,
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R.string.taskList_menu_insert);
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item.setIcon(android.R.drawable.ic_menu_add);
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item.setAlphabeticShortcut('n');
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item = menu.add(Menu.NONE, FILTERS_ID, Menu.NONE,
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R.string.taskList_menu_filters);
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item.setIcon(android.R.drawable.ic_menu_view);
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item.setAlphabeticShortcut('f');
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item = menu.add(Menu.NONE, TAGS_ID, Menu.NONE,
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R.string.taskList_menu_tags);
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item.setIcon(android.R.drawable.ic_menu_myplaces);
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item.setAlphabeticShortcut('t');
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item = menu.add(Menu.NONE, SETTINGS_ID, Menu.NONE,
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R.string.taskList_menu_settings);
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item.setIcon(android.R.drawable.ic_menu_preferences);
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item.setAlphabeticShortcut('p');
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return true;
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}
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/* ======================================================================
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* ====================================================== populating list
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* ====================================================================== */
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private boolean isTaskHidden(TaskModelForList task) {
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if(task.isHidden())
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return true;
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if(filterTag == null) {
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for(TagModelForView tags : taskTags.get(task)) {
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if(tags.shouldHideFromMainList())
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return true;
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}
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}
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return false;
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}
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/** Fill in the Task List with our tasks */
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private void fillData() {
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Resources r = getResources();
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// load tags (they might've changed)
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tagMap = tagController.getAllTagsAsMap(this);
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Bundle extras = getIntent().getExtras();
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if(extras != null && extras.containsKey(TAG_TOKEN)) {
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TagIdentifier identifier = new TagIdentifier(extras.getLong(TAG_TOKEN));
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filterTag = tagMap.get(identifier);
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}
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// get a cursor to the task list
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Cursor tasksCursor;
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if(filterTag != null) {
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List<TaskIdentifier> tasks = tagController.getTaggedTasks(this,
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filterTag.getTagIdentifier());
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tasksCursor = controller.getTaskListCursorById(tasks);
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} else {
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if(filterShowDone)
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tasksCursor = controller.getAllTaskListCursor();
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else
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tasksCursor = controller.getActiveTaskListCursor();
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}
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startManagingCursor(tasksCursor);
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taskArray = controller.createTaskListFromCursor(tasksCursor);
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// read tags and apply filters
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int hiddenTasks = 0; // # of tasks hidden
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int completedTasks = 0; // # of tasks on list that are done
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taskTags = new HashMap<TaskModelForList, List<TagModelForView>>();
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for(Iterator<TaskModelForList> i = taskArray.iterator(); i.hasNext();) {
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TaskModelForList task = i.next();
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if(task.isTaskCompleted()) {
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if(!filterShowDone) {
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i.remove();
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continue;
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}
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}
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// get list of tags
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List<TagIdentifier> tagIds = tagController.getTaskTags(this,
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task.getTaskIdentifier());
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List<TagModelForView> tags = new LinkedList<TagModelForView>();
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for(TagIdentifier tagId : tagIds) {
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TagModelForView tag = tagMap.get(tagId);
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tags.add(tag);
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}
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taskTags.put(task, tags);
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// hide hidden
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if(!filterShowHidden) {
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if(isTaskHidden(task)) {
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hiddenTasks++;
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i.remove();
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continue;
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}
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}
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if(task.isTaskCompleted())
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completedTasks++;
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}
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int activeTasks = taskArray.size() - completedTasks;
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// hide "add" button if we have a few tasks
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if(taskArray.size() > 4)
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addButton.setVisibility(View.GONE);
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else
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addButton.setVisibility(View.VISIBLE);
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// set up the title
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StringBuilder title = new StringBuilder().
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append(r.getString(R.string.taskList_titlePrefix)).append(" ");
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if(filterTag != null) {
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title.append(r.getString(R.string.taskList_titleTagPrefix,
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filterTag.getName())).append(" ");
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}
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if(completedTasks > 0)
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title.append(r.getQuantityString(R.plurals.NactiveTasks,
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activeTasks, activeTasks, taskArray.size()));
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else
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title.append(r.getQuantityString(R.plurals.Ntasks,
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taskArray.size(), taskArray.size()));
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if(hiddenTasks > 0)
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title.append(" (+").append(hiddenTasks).append(" ").
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append(r.getString(R.string.taskList_hiddenSuffix)).append(")");
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setTitle(title);
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setUpListUI();
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}
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private void setUpListUI() {
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// set up our adapter
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TaskListAdapter tasks = new TaskListAdapter(this, this,
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R.layout.task_list_row, taskArray, new TaskListAdapterHooks() {
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@Override
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public TagController getTagController() {
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return tagController;
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}
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@Override
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public List<TagModelForView> getTagsFor(
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TaskModelForList task) {
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return taskTags.get(task);
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}
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@Override
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public List<TaskModelForList> getTaskArray() {
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return taskArray;
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}
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@Override
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public TaskController getTaskController() {
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return controller;
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}
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@Override
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public void performItemClick(View v, int position) {
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listView.performItemClick(v, position, 0);
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}
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});
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listView.setAdapter(tasks);
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listView.setItemsCanFocus(true);
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// list view listener
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listView.setOnItemClickListener(new OnItemClickListener() {
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@Override
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public void onItemClick(AdapterView<?> parent, View view,
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int position, long id) {
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TaskModelForList task = (TaskModelForList)view.getTag();
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Intent intent = new Intent(TaskList.this, TaskView.class);
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intent.putExtra(TaskEdit.LOAD_INSTANCE_TOKEN, task.
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getTaskIdentifier().getId());
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startActivityForResult(intent, ACTIVITY_VIEW);
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}
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});
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// filters context menu
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listView.setOnCreateContextMenuListener(new OnCreateContextMenuListener() {
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@Override
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public void onCreateContextMenu(ContextMenu menu, View v,
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ContextMenuInfo menuInfo) {
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if(menu.hasVisibleItems())
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return;
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Resources r = getResources();
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MenuItem item = menu.add(Menu.NONE, CONTEXT_FILTER_HIDDEN,
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Menu.NONE, R.string.taskList_filter_hidden);
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item.setCheckable(true);
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item.setChecked(filterShowHidden);
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item = menu.add(Menu.NONE, CONTEXT_FILTER_DONE, Menu.NONE,
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R.string.taskList_filter_done);
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item.setCheckable(true);
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item.setChecked(filterShowDone);
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if(filterTag != null) {
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item = menu.add(Menu.NONE, CONTEXT_FILTER_TAG, Menu.NONE,
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r.getString(R.string.taskList_filter_tagged,
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filterTag.getName()));
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item.setCheckable(true);
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item.setChecked(true);
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}
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menu.setHeaderTitle(R.string.taskList_filter_title);
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}
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});
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}
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/* ======================================================================
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* ======================================================= event handlers
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* ====================================================================== */
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@Override
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public void onWindowFocusChanged(boolean hasFocus) {
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super.onWindowFocusChanged(hasFocus);
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// refresh, since stuff might have changed...
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if(hasFocus) {
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if(shouldCloseInstance) { // user wants to quit
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shouldCloseInstance = false;
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finish();
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} else
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fillData();
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}
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}
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private void createTask() {
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Intent intent = new Intent(this, TaskEdit.class);
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if(filterTag != null)
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intent.putExtra(TaskEdit.TAG_NAME_TOKEN, filterTag.getName());
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startActivityForResult(intent, ACTIVITY_CREATE);
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}
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private void deleteTask(final TaskIdentifier taskId) {
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new AlertDialog.Builder(this)
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.setTitle(R.string.delete_title)
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.setMessage(R.string.delete_this_task_title)
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.setIcon(android.R.drawable.ic_dialog_alert)
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.setPositiveButton(android.R.string.ok,
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new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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controller.deleteTask(taskId);
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fillData();
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}
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})
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.setNegativeButton(android.R.string.cancel, null)
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.show();
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}
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@Override
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public boolean onMenuItemSelected(int featureId, MenuItem item) {
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Intent intent;
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TaskModelForList task;
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switch(item.getItemId()) {
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case INSERT_ID:
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createTask();
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return true;
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case FILTERS_ID:
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listView.showContextMenu();
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return true;
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case TAGS_ID:
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if(filterTag == null) {
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intent = new Intent(TaskList.this, TagList.class);
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startActivityForResult(intent, ACTIVITY_TAGS);
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} else {
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finish();
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}
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return true;
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case SETTINGS_ID:
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startActivity(new Intent(this, EditPreferences.class));
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return true;
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case TaskListAdapter.CONTEXT_EDIT_ID:
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task = taskArray.get(item.getGroupId());
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intent = new Intent(TaskList.this, TaskEdit.class);
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intent.putExtra(TaskEdit.LOAD_INSTANCE_TOKEN, task.getTaskIdentifier().getId());
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startActivityForResult(intent, ACTIVITY_EDIT);
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return true;
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case TaskListAdapter.CONTEXT_DELETE_ID:
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task = taskArray.get(item.getGroupId());
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deleteTask(task.getTaskIdentifier());
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return true;
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case TaskListAdapter.CONTEXT_TIMER_ID:
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task = taskArray.get(item.getGroupId());
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if(task.getTimerStart() == null)
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task.setTimerStart(new Date());
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else {
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task.stopTimerAndUpdateElapsedTime();
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}
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controller.saveTask(task);
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fillData();
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return true;
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case CONTEXT_FILTER_HIDDEN:
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filterShowHidden = !filterShowHidden;
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fillData();
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return true;
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case CONTEXT_FILTER_DONE:
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filterShowDone = !filterShowDone;
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fillData();
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return true;
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case CONTEXT_FILTER_TAG:
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setResult(Constants.RESULT_GO_HOME);
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finish();
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return true;
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}
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return super.onMenuItemSelected(featureId, item);
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}
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@Override
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protected void onDestroy() {
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super.onDestroy();
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controller.close();
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if(tagController != null)
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tagController.close();
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}
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} |