HomeGroupsXLarge.java revision d97598ef4b82ad94f769b0db3bcdde5867935eea 
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
17package com.android.loaderapp;
18
19import com.android.loaderapp.fragments.ContactFragment;
20import com.android.loaderapp.fragments.ContactsListFragment;
21import com.android.loaderapp.fragments.GroupsListFragment;
22
23import android.app.ActionBar;
24import android.app.Activity;
25import android.app.FragmentTransaction;
26import android.content.Intent;
27import android.content.res.Resources;
28import android.net.Uri;
29import android.os.Bundle;
30import android.provider.ContactsContract;
31import android.view.Menu;
32import android.view.MenuItem;
33import android.view.View;
34import android.view.ViewGroup;
35
36public 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
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
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
78    public void onAllContactsSelected() {
79        getContactsList().setMode(ContactsListFragment.MODE_VISIBLE);
80    }
81
82    public void onFavoritesSelected() {
83        getContactsList().setMode(ContactsListFragment.MODE_STREQUENT);
84    }
85
86    public void onGroupSelected(String title) {
87        getContactsList().setGroupMode(title);
88    }
89
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
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
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 */
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 */
167    public boolean onUpdateActionMenu(Menu menu) {
168        return false;
169    }
170
171    /** Implements ActionBar.Callback */
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 */
188    public boolean onNavigationItemSelected(int itemPosition, long itemId) {
189        return false;
190    }
191
192    /** Implements ActionBar.Callback */
193    public boolean onCreateContextMode(int modeId, Menu menu) {
194        return false;
195    }
196
197    /** Implements ActionBar.Callback */
198    public boolean onPrepareContextMode(int modeId, Menu menu) {
199        return false;
200    }
201
202    /** Implements ActionBar.Callback */
203    public boolean onContextItemClicked(int modeId, MenuItem item) {
204        return false;
205    }
206}
207