ShortcutPicker.java revision 79fab5ae623ea75ba526e2673fe6749066b177e4 
1/*
2 * Copyright (C) 2008 The Android Open Source Project
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.email.activity;
18
19import android.app.Activity;
20import android.content.Intent;
21import android.os.Bundle;
22import android.os.Parcelable;
23import android.util.Log;
24import android.view.View;
25import android.view.View.OnClickListener;
26
27import com.android.email.R;
28import com.android.email.activity.ShortcutPickerFragment.AccountShortcutPickerFragment;
29import com.android.email.activity.ShortcutPickerFragment.MailboxShortcutPickerFragment;
30import com.android.email.activity.ShortcutPickerFragment.PickerCallback;
31import com.android.emailcommon.Logging;
32import com.android.emailcommon.provider.Account;
33import com.android.emailcommon.provider.EmailContent.Message;
34import com.android.emailcommon.provider.Mailbox;
35
36/**
37 * This class implements a launcher shortcut for directly accessing a single account.
38 */
39public class ShortcutPicker extends Activity implements OnClickListener, PickerCallback {
40    /**
41     * If true, creates pre-honeycomb style shortcuts. This allows developers to test launching
42     * the app from old style shortcuts (which point sat MessageList rather than Welcome) without
43     * actually carrying over shortcuts from previous versions.
44     */
45    private final static boolean TEST_CREATE_OLD_STYLE_SHORTCUT = false; // DO NOT SUBMIT WITH TRUE
46
47    @Override
48    public void onCreate(Bundle icicle) {
49        super.onCreate(icicle);
50
51        // TODO Relax this test slightly in order to re-use this activity for widget creation
52        if (!Intent.ACTION_CREATE_SHORTCUT.equals(getIntent().getAction())) {
53            // finish() immediately if we aren't supposed to be here
54            finish();
55            return;
56        }
57
58        // Set handler for the "cancel" button
59        setContentView(R.layout.account_shortcut_picker);
60        findViewById(R.id.cancel).setOnClickListener(this);
61
62        if (getFragmentManager().findFragmentById(R.id.shortcut_list) == null) {
63            // Load the account picking fragment if we haven't created a fragment yet
64            // NOTE: do not add to history as this will be the first fragment in the flow
65            AccountShortcutPickerFragment fragment = new AccountShortcutPickerFragment();
66            getFragmentManager().beginTransaction().add(R.id.shortcut_list, fragment).commit();
67        }
68    }
69
70    @Override
71    public void onClick(View v) {
72        switch (v.getId()) {
73            case R.id.cancel:
74                finish();
75                break;
76        }
77    }
78
79    @Override
80    public Integer buildFilter(Account account) {
81        if (!Account.isNormalAccount(account.mId)) {
82            // Shortcuts for combined accounts can only be for inboxes.
83            return MailboxShortcutPickerFragment.FILTER_INBOX_ONLY;
84        }
85
86        return MailboxShortcutPickerFragment.FILTER_ALLOW_ALL;
87    }
88
89    @Override
90    public void onSelected(Account account, long mailboxId) {
91        String shortcutName;
92        if (Account.isNormalAccount(account.mId) &&
93                (Mailbox.getMailboxType(this, mailboxId) != Mailbox.TYPE_INBOX)) {
94            shortcutName = Mailbox.getDisplayName(this, mailboxId);
95        } else {
96            shortcutName = account.getDisplayName();
97        }
98        setupShortcut(account, mailboxId, shortcutName);
99        finish();
100    }
101
102    @Override
103    public void onMissingData(boolean missingAccount, boolean missingMailbox) {
104        // TODO what's the proper handling if the mailbox list is '0'? display toast?
105        finish();
106    }
107
108    /**
109     * This function creates a shortcut and returns it to the caller.  There are actually two
110     * intents that you will send back.
111     *
112     * The first intent serves as a container for the shortcut and is returned to the launcher by
113     * setResult().  This intent must contain three fields:
114     *
115     * <ul>
116     * <li>{@link android.content.Intent#EXTRA_SHORTCUT_INTENT} The shortcut intent.</li>
117     * <li>{@link android.content.Intent#EXTRA_SHORTCUT_NAME} The text that will be displayed with
118     * the shortcut.</li>
119     * <li>{@link android.content.Intent#EXTRA_SHORTCUT_ICON} The shortcut's icon, if provided as a
120     * bitmap, <i>or</i> {@link android.content.Intent#EXTRA_SHORTCUT_ICON_RESOURCE} if provided as
121     * a drawable resource.</li>
122     * </ul>
123     *
124     * If you use a simple drawable resource, note that you must wrapper it using
125     * {@link android.content.Intent.ShortcutIconResource}, as shown below.  This is required so
126     * that the launcher can access resources that are stored in your application's .apk file.  If
127     * you return a bitmap, such as a thumbnail, you can simply put the bitmap into the extras
128     * bundle using {@link android.content.Intent#EXTRA_SHORTCUT_ICON}.
129     *
130     * The shortcut intent can be any intent that you wish the launcher to send, when the user
131     * clicks on the shortcut.  Typically this will be {@link android.content.Intent#ACTION_VIEW}
132     * with an appropriate Uri for your content, but any Intent will work here as long as it
133     * triggers the desired action within your Activity.
134     */
135    private void setupShortcut(Account account, long mailboxId, String shortcutName) {
136        Activity myActivity = this;
137        // First, set up the shortcut intent.
138        final Intent shortcutIntent;
139        if (TEST_CREATE_OLD_STYLE_SHORTCUT) {
140            shortcutIntent = MessageList.createFroyoIntent(myActivity, account);
141            Log.d(Logging.LOG_TAG, "Created old style intent: " + shortcutIntent);
142        } else {
143            // TODO if we add meta-mailboxes/accounts to the database, remove this special case
144            if (account.mId == Account.ACCOUNT_ID_COMBINED_VIEW) {
145                shortcutIntent = Welcome.createOpenMessageIntent(
146                        myActivity, account.mId, mailboxId, Message.NO_MESSAGE);
147            } else {
148                String uuid = account.mCompatibilityUuid;
149                shortcutIntent = Welcome.createAccountShortcutIntent(myActivity, uuid, mailboxId);
150            }
151        }
152
153        // Then, set up the container intent (the response to the caller)
154        Intent intent = new Intent();
155        intent.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent);
156        intent.putExtra(Intent.EXTRA_SHORTCUT_NAME, shortcutName);
157        Parcelable iconResource
158                = Intent.ShortcutIconResource.fromContext(myActivity, R.mipmap.ic_launcher_email);
159        intent.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, iconResource);
160
161        // Now, return the result to the launcher
162        myActivity.setResult(Activity.RESULT_OK, intent);
163    }
164}
165