1 /*
2  * Copyright (C) 2010 Google Inc.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of 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,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License
15  */
16 
17 package com.android.loaderapp;
18 
19 import com.android.loaderapp.fragments.ContactFragment;
20 import com.android.loaderapp.fragments.ContactsListFragment;
21 import com.android.loaderapp.fragments.GroupsListFragment;
22 
23 import android.app.ActionBar;
24 import android.app.Activity;
25 import android.app.FragmentTransaction;
26 import android.content.Intent;
27 import android.content.res.Resources;
28 import android.net.Uri;
29 import android.os.Bundle;
30 import android.provider.ContactsContract;
31 import android.view.Menu;
32 import android.view.MenuItem;
33 import android.view.View;
34 import android.view.ViewGroup;
35 
36 public class HomeGroupsXLarge extends Activity implements ActionBar.Callback,
37         ContactsListFragment.Controller, GroupsListFragment.Controller {
38     private static final int ACTION_ID_SEARCH = 0;
39     private static final int ACTION_ID_ADD = 1;
40 
41     private static final int MODE_GROUPS = 0;
42     private static final int MODE_DETAILS = 1;
43 
44     int mMode;
45 
46     @Override
onCreate(Bundle savedState)47     public void onCreate(Bundle savedState) {
48         super.onCreate(savedState);
49 
50         setContentView(R.layout.two_pane);
51 
52         GroupsListFragment groupsList = new GroupsListFragment();
53         groupsList.setController(this);
54 
55         ContactsListFragment contactsList = new ContactsListFragment(
56                 ContactsListFragment.MODE_NULL);
57         contactsList.setController(this);
58 
59         FragmentTransaction xact = openFragmentTransaction();
60         xact.add(R.id.smallPane, groupsList);
61         xact.add(R.id.largePane, contactsList);
62         xact.commit();
63         mMode = MODE_GROUPS;
64 
65         getActionBar().setCallback(this);
66     }
67 
getContactsList()68     private ContactsListFragment getContactsList() {
69         switch (mMode) {
70             case MODE_GROUPS:
71                 return (ContactsListFragment) findFragmentById(R.id.largePane);
72             case MODE_DETAILS:
73                 return (ContactsListFragment) findFragmentById(R.id.smallPane);
74         }
75         throw new IllegalStateException("unknown mode " + mMode);
76     }
77 
onAllContactsSelected()78     public void onAllContactsSelected() {
79         getContactsList().setMode(ContactsListFragment.MODE_VISIBLE);
80     }
81 
onFavoritesSelected()82     public void onFavoritesSelected() {
83         getContactsList().setMode(ContactsListFragment.MODE_STREQUENT);
84     }
85 
onGroupSelected(String title)86     public void onGroupSelected(String title) {
87         getContactsList().setGroupMode(title);
88     }
89 
onContactSelected(Uri contactUri)90     public void onContactSelected(Uri contactUri) {
91         if (contactUri == null) {
92             return;
93         }
94 
95         ContactFragment details = new ContactFragment(contactUri,
96                 new ContactFragment.DefaultController(this));
97         FragmentTransaction xact = openFragmentTransaction();
98         xact.addToBackStack(null);
99         if (mMode == MODE_GROUPS) {
100             mMode = MODE_DETAILS;
101             // commit is actually async, so add in details at largePane, which will be correct
102             // after swapPanes() does its thing.
103             xact.remove(findFragmentById(R.id.smallPane));
104             xact.add(R.id.largePane, details);
105             xact.commit();
106             swapPanes(); // swap the list to the small pane
107         } else {
108             xact.replace(R.id.largePane, details);
109             xact.commit();
110         }
111     }
112 
swapPanes()113     private void swapPanes() {
114         ViewGroup paneHost = (ViewGroup) findViewById(R.id.paneHost);
115 
116         View largePane = findViewById(R.id.largePane);
117         ViewGroup.LayoutParams largeParams = largePane.getLayoutParams();
118         int largeIndex = paneHost.indexOfChild(largePane);
119 
120         View smallPane = findViewById(R.id.smallPane);
121         ViewGroup.LayoutParams smallParams = smallPane.getLayoutParams();
122         int smallIndex = paneHost.indexOfChild(smallPane);
123 
124         paneHost.removeAllViews();
125 
126         largePane.setId(R.id.smallPane);
127         largePane.setLayoutParams(smallParams);
128 
129         smallPane.setId(R.id.largePane);
130         smallPane.setLayoutParams(largeParams);
131 
132         if (smallIndex < largeIndex) {
133             // Small was before large so add them back in reverse order
134             paneHost.addView(largePane);
135             paneHost.addView(smallPane);
136         } else {
137             // Large was before small so add them back in reverse order
138             paneHost.addView(smallPane);
139             paneHost.addView(largePane);
140         }
141     }
142 
143     @Override
onBackPressed()144     public void onBackPressed() {
145         if (!popBackStack(null)) {
146             finish();
147         } else {
148             if (mMode == MODE_DETAILS) {
149                 swapPanes();
150                 mMode = MODE_GROUPS;
151             }
152         }
153     }
154 
155     /** Implements ActionBar.Callback */
onCreateActionMenu(Menu menu)156     public boolean onCreateActionMenu(Menu menu) {
157         Resources resources = getResources();
158         menu.add(0, ACTION_ID_SEARCH, 0, R.string.menu_search)
159                 .setIcon(resources.getDrawable(android.R.drawable.ic_menu_search));
160         menu.add(0, ACTION_ID_ADD, 1, R.string.menu_newContact)
161                 .setIcon(resources.getDrawable(android.R.drawable.ic_menu_add));
162 
163         return true;
164     }
165 
166     /** Implements ActionBar.Callback */
onUpdateActionMenu(Menu menu)167     public boolean onUpdateActionMenu(Menu menu) {
168         return false;
169     }
170 
171     /** Implements ActionBar.Callback */
onActionItemClicked(MenuItem item)172     public boolean onActionItemClicked(MenuItem item) {
173         switch (item.getItemId()) {
174             case ACTION_ID_SEARCH: {
175                 startSearch(null, false, null, true);
176                 return true;
177             }
178 
179             case ACTION_ID_ADD: {
180                 startActivity(new Intent(Intent.ACTION_INSERT, ContactsContract.Contacts.CONTENT_URI));
181                 return true;
182             }
183         }
184         return false;
185     }
186 
187     /** Implements ActionBar.Callback */
onNavigationItemSelected(int itemPosition, long itemId)188     public boolean onNavigationItemSelected(int itemPosition, long itemId) {
189         return false;
190     }
191 
192     /** Implements ActionBar.Callback */
onCreateContextMode(int modeId, Menu menu)193     public boolean onCreateContextMode(int modeId, Menu menu) {
194         return false;
195     }
196 
197     /** Implements ActionBar.Callback */
onPrepareContextMode(int modeId, Menu menu)198     public boolean onPrepareContextMode(int modeId, Menu menu) {
199         return false;
200     }
201 
202     /** Implements ActionBar.Callback */
onContextItemClicked(int modeId, MenuItem item)203     public boolean onContextItemClicked(int modeId, MenuItem item) {
204         return false;
205     }
206 }
207