754 lines
32 KiB
Java
754 lines
32 KiB
Java
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.email.provider;
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import com.android.email.Email;
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import com.android.email.R;
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import com.android.email.Utility;
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import com.android.email.activity.MessageCompose;
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import com.android.email.activity.Welcome;
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import com.android.email.data.ThrottlingCursorLoader;
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import com.android.email.provider.EmailContent.Account;
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import com.android.email.provider.EmailContent.AccountColumns;
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import com.android.email.provider.EmailContent.Mailbox;
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import com.android.email.provider.EmailContent.Message;
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import com.android.email.provider.EmailContent.MessageColumns;
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import android.app.Activity;
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import android.app.PendingIntent;
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import android.app.Service;
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import android.appwidget.AppWidgetManager;
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import android.appwidget.AppWidgetProvider;
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import android.content.ContentResolver;
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import android.content.ContentUris;
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import android.content.Context;
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import android.content.Intent;
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import android.content.Loader;
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import android.content.res.Resources;
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import android.database.Cursor;
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import android.graphics.Typeface;
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import android.net.Uri;
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import android.net.Uri.Builder;
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import android.os.AsyncTask;
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import android.os.Bundle;
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import android.text.Spannable;
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import android.text.SpannableString;
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import android.text.SpannableStringBuilder;
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import android.text.TextUtils;
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import android.text.format.DateUtils;
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import android.text.style.AbsoluteSizeSpan;
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import android.text.style.ForegroundColorSpan;
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import android.text.style.StyleSpan;
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import android.util.Log;
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import android.view.View;
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import android.widget.RemoteViews;
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import android.widget.RemoteViewsService;
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import java.util.HashMap;
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import java.util.List;
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public class WidgetProvider extends AppWidgetProvider {
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private static final String TAG = "WidgetProvider";
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/**
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* When handling clicks in a widget ListView, a single PendingIntent template is provided to
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* RemoteViews, and the individual "on click" actions are distinguished via a "fillInIntent"
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* on each list element; when a click is received, this "fillInIntent" is merged with the
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* PendingIntent using Intent.fillIn(). Since this mechanism does NOT preserve the Extras
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* Bundle, we instead encode information about the action (e.g. view, reply, etc.) and its
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* arguments (e.g. messageId, mailboxId, etc.) in an Uri which is added to the Intent via
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* Intent.setDataAndType()
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*
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* The mime type MUST be set in the Intent, even though we do not use it; therefore, it's value
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* is entirely arbitrary.
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*
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* Our "command" Uri is NOT used by the system in any manner, and is therefore constrained only
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* in the requirement that it be syntactically valid.
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*
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* We use the following convention for our commands:
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* widget://command/<command>/<arg1>[/<arg2>]
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*/
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private static final String WIDGET_DATA_MIME_TYPE = "com.android.email/widget_data";
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private static final Uri COMMAND_URI = Uri.parse("widget://command");
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// Command names and Uri's built upon COMMAND_URI
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private static final String COMMAND_NAME_SWITCH_LIST_VIEW = "switch_list_view";
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private static final Uri COMMAND_URI_SWITCH_LIST_VIEW =
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COMMAND_URI.buildUpon().appendPath(COMMAND_NAME_SWITCH_LIST_VIEW).build();
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private static final String COMMAND_NAME_VIEW_MESSAGE = "view_message";
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private static final Uri COMMAND_URI_VIEW_MESSAGE =
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COMMAND_URI.buildUpon().appendPath(COMMAND_NAME_VIEW_MESSAGE).build();
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private static final int TOTAL_COUNT_UNKNOWN = -1;
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private static final int MAX_MESSAGE_LIST_COUNT = 25;
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private static final String[] NO_ARGUMENTS = new String[0];
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private static final String SORT_TIMESTAMP_DESCENDING = MessageColumns.TIMESTAMP + " DESC";
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private static final String SORT_ID_ASCENDING = AccountColumns.ID + " ASC";
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private static final String[] ID_NAME_PROJECTION = {Account.RECORD_ID, Account.DISPLAY_NAME};
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private static final int ID_NAME_COLUMN_ID = 0;
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private static final int ID_NAME_COLUMN_NAME = 1;
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// Map holding our instantiated widgets, accessed by widget id
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private static HashMap<Integer, EmailWidget> sWidgetMap = new HashMap<Integer, EmailWidget>();
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private static AppWidgetManager sWidgetManager;
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private static Context sContext;
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private static ContentResolver sResolver;
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private static int sSenderFontSize;
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private static int sSubjectFontSize;
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private static int sDateFontSize;
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private static int sDefaultTextColor;
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private static int sLightTextColor;
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private static String sSubjectSnippetDivider;
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private static String sConfigureText;
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/**
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* Types of views that we're prepared to show in the widget - all mail, unread mail, and starred
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* mail; we rotate between them. Each ViewType is composed of a selection string and a title.
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*/
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public enum ViewType {
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ALL_MAIL(null, NO_ARGUMENTS, R.string.widget_all_mail),
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UNREAD(MessageColumns.FLAG_READ + "=0", NO_ARGUMENTS, R.string.widget_unread),
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STARRED(MessageColumns.FLAG_FAVORITE + "=1", NO_ARGUMENTS, R.string.widget_starred),
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ACCOUNT(MessageColumns.ACCOUNT_KEY + "=?", new String[1], 0);
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private final String selection;
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private final String[] selectionArgs;
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private final int titleResource;
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private String title;
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ViewType(String _selection, String[] _selectionArgs, int _titleResource) {
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selection = _selection;
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selectionArgs = _selectionArgs;
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titleResource = _titleResource;
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}
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public String getTitle(Context context) {
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if (title == null && titleResource != 0) {
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title = context.getString(titleResource);
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}
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return title;
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}
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}
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static class EmailWidget implements RemoteViewsService.RemoteViewsFactory {
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// The widget identifier
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private final int mWidgetId;
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// The cursor underlying the message list for this widget; this must only be modified while
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// holding mCursorLock
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private volatile Cursor mCursor;
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// A lock on our cursor, which is used in the UI thread while inflating views, and by
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// our Loader in the background
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private final Object mCursorLock = new Object();
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// Number of records in the cursor
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private int mCursorCount = TOTAL_COUNT_UNKNOWN;
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// The widget's loader (derived from ThrottlingCursorLoader)
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private WidgetLoader mLoader;
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// The current view type (all mail, unread, or starred for now)
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/*package*/ ViewType mViewType = ViewType.STARRED;
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// The projection to be used by the WidgetLoader
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public static final String[] WIDGET_PROJECTION = new String[] {
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EmailContent.RECORD_ID, MessageColumns.DISPLAY_NAME, MessageColumns.TIMESTAMP,
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MessageColumns.SUBJECT, MessageColumns.FLAG_READ, MessageColumns.FLAG_FAVORITE,
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MessageColumns.FLAG_ATTACHMENT, MessageColumns.MAILBOX_KEY, MessageColumns.SNIPPET,
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MessageColumns.ACCOUNT_KEY
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};
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public static final int WIDGET_COLUMN_ID = 0;
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public static final int WIDGET_COLUMN_DISPLAY_NAME = 1;
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public static final int WIDGET_COLUMN_TIMESTAMP = 2;
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public static final int WIDGET_COLUMN_SUBJECT = 3;
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public static final int WIDGET_COLUMN_FLAG_READ = 4;
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public static final int WIDGET_COLUMN_FLAG_FAVORITE = 5;
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public static final int WIDGET_COLUMN_FLAG_ATTACHMENT = 6;
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public static final int WIDGET_COLUMN_MAILBOX_KEY = 7;
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public static final int WIDGET_COLUMN_SNIPPET = 8;
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public static final int WIDGET_COLUMN_ACCOUNT_KEY = 9;
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public EmailWidget(int _widgetId) {
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super();
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if (Email.DEBUG) {
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Log.d(TAG, "Creating EmailWidget with id = " + _widgetId);
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}
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mWidgetId = _widgetId;
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mLoader = new WidgetLoader();
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if (sSubjectSnippetDivider == null) {
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// Initialize string, color, dimension resources
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Resources res = sContext.getResources();
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sSubjectSnippetDivider =
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res.getString(R.string.message_list_subject_snippet_divider);
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sSenderFontSize = res.getDimensionPixelSize(R.dimen.widget_senders_font_size);
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sSubjectFontSize = res.getDimensionPixelSize(R.dimen.widget_subject_font_size);
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sDateFontSize = res.getDimensionPixelSize(R.dimen.widget_date_font_size);
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sDefaultTextColor = res.getColor(R.color.widget_default_text_color);
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sDefaultTextColor = res.getColor(R.color.widget_default_text_color);
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sLightTextColor = res.getColor(R.color.widget_light_text_color);
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sConfigureText = res.getString(R.string.widget_other_views);
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}
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}
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/**
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* The ThrottlingCursorLoader does all of the heavy lifting in managing the data loading
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* task; all we need is to register a listener so that we're notified when the load is
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* complete.
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*/
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final class WidgetLoader extends ThrottlingCursorLoader {
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protected WidgetLoader() {
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super(sContext, Message.CONTENT_URI, WIDGET_PROJECTION, mViewType.selection,
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mViewType.selectionArgs, SORT_TIMESTAMP_DESCENDING);
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registerListener(0, new OnLoadCompleteListener<Cursor>() {
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@Override
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public void onLoadComplete(Loader<Cursor> loader, Cursor cursor) {
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synchronized (mCursorLock) {
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// Save away the cursor
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mCursor = cursor;
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// Reset the notification Uri to our Message table notifier URI
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mCursor.setNotificationUri(sResolver, Message.NOTIFIER_URI);
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// Save away the count (for display)
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mCursorCount = mCursor.getCount();
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if (Email.DEBUG) {
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Log.d(TAG, "onLoadComplete, count = " + cursor.getCount());
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}
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}
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RemoteViews views =
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new RemoteViews(sContext.getPackageName(), R.layout.widget);
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setupTitleAndCount(views);
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sWidgetManager.partiallyUpdateAppWidget(mWidgetId, views);
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sWidgetManager.notifyAppWidgetViewDataChanged(mWidgetId, R.id.message_list);
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}
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});
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}
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/**
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* Stop any pending load, reset selection parameters, and start loading
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* Must be called from the UI thread
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* @param viewType the current ViewType
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*/
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private void load(ViewType viewType) {
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reset();
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setSelection(viewType.selection);
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setSelectionArgs(viewType.selectionArgs);
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startLoading();
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}
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}
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/**
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* Initialize to first appropriate view (depending on the number of accounts)
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*/
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private void init() {
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new WidgetViewSwitcher(this).execute();
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}
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/**
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* Reset cursor and cursor count, notify widget that list data is invalid, and start loading
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* with our current ViewType
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*/
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private void loadView() {
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synchronized(mCursorLock) {
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mCursorCount = TOTAL_COUNT_UNKNOWN;
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mCursor = null;
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sWidgetManager.notifyAppWidgetViewDataChanged(mWidgetId, R.id.message_list);
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mLoader.load(mViewType);
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}
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}
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/**
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* Switch to the next widget view (all -> account1 -> ... -> account n -> unread -> starred)
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* This must be called on a background thread
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*/
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public synchronized void switchToNextView() {
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switch(mViewType) {
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// If we're in starred and there is more than one account, go to "all mail"
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// Otherwise, fall through to the accounts themselves
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case STARRED:
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if (EmailContent.count(sContext, Account.CONTENT_URI) > 1) {
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mViewType = ViewType.ALL_MAIL;
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break;
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}
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//$FALL-THROUGH$
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case ALL_MAIL:
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ViewType.ACCOUNT.selectionArgs[0] = "0";
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//$FALL-THROUGH$
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case ACCOUNT:
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// Find the next account (or, if none, default to UNREAD)
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String idString = ViewType.ACCOUNT.selectionArgs[0];
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Cursor c = sResolver.query(Account.CONTENT_URI, ID_NAME_PROJECTION, "_id>?",
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new String[] {idString}, SORT_ID_ASCENDING);
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try {
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if (c.moveToFirst()) {
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mViewType = ViewType.ACCOUNT;
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mViewType.selectionArgs[0] = c.getString(ID_NAME_COLUMN_ID);
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mViewType.title = c.getString(ID_NAME_COLUMN_NAME);
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} else {
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mViewType = ViewType.UNREAD;
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}
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} finally {
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c.close();
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}
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break;
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case UNREAD:
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mViewType = ViewType.STARRED;
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break;
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}
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}
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/**
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* Convenience method for creating an onClickPendingIntent that executes a command via
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* our command Uri. Used for the "next view" command; appends the widget id to the command
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* Uri.
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*
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* @param views The RemoteViews we're inflating
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* @param buttonId the id of the button view
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* @param data the command Uri
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*/
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private void setCommandIntent(RemoteViews views, int buttonId, Uri data) {
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Intent intent = new Intent(sContext, WidgetService.class);
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intent.setDataAndType(ContentUris.withAppendedId(data, mWidgetId),
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WIDGET_DATA_MIME_TYPE);
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PendingIntent pendingIntent = PendingIntent.getService(sContext, 0, intent,
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PendingIntent.FLAG_UPDATE_CURRENT);
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views.setOnClickPendingIntent(buttonId, pendingIntent);
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}
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/**
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* Convenience method for creating an onClickPendingIntent that launches another activity
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* directly. Used for the "Compose" button
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*
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* @param views The RemoteViews we're inflating
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* @param buttonId the id of the button view
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* @param activityClass the class of the activity to be launched
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*/
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private void setActivityIntent(RemoteViews views, int buttonId,
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Class<? extends Activity> activityClass) {
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Intent intent = new Intent(sContext, activityClass);
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PendingIntent pendingIntent = PendingIntent.getActivity(sContext, 0, intent, 0);
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views.setOnClickPendingIntent(buttonId, pendingIntent);
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}
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/**
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* Convenience method for constructing a fillInIntent for a given list view element.
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* Appends the command and any arguments to a base Uri.
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*
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* @param views the RemoteViews we are inflating
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* @param viewId the id of the view
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* @param baseUri the base uri for the command
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* @param args any arguments to the command
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*/
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private void setFillInIntent(RemoteViews views, int viewId, Uri baseUri, String ... args) {
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Intent intent = new Intent();
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Builder builder = baseUri.buildUpon();
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for (String arg: args) {
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builder.appendPath(arg);
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}
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intent.setDataAndType(builder.build(), WIDGET_DATA_MIME_TYPE);
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views.setOnClickFillInIntent(viewId, intent);
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}
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private void setupTitleAndCount(RemoteViews views) {
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// Set up the title (view type + count of messages)
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views.setTextViewText(R.id.widget_title, mViewType.getTitle(sContext));
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views.setTextViewText(R.id.widget_tap, sConfigureText);
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String count = "";
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if (mCursorCount != TOTAL_COUNT_UNKNOWN) {
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count = Integer.toString(mCursor.getCount());
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}
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views.setTextViewText(R.id.widget_count, count);
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}
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/**
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* Update the "header" of the widget (i.e. everything that doesn't include the scrolling
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* message list)
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*/
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private void updateHeader() {
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if (Email.DEBUG) {
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Log.d(TAG, "updateWidget " + mWidgetId);
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}
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// Get the widget layout
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RemoteViews views = new RemoteViews(sContext.getPackageName(), R.layout.widget);
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// Set up the list with an adapter
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Intent intent = new Intent(sContext, WidgetService.class);
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intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mWidgetId);
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intent.setData(Uri.parse(intent.toUri(Intent.URI_INTENT_SCHEME)));
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views.setRemoteAdapter(R.id.message_list, intent);
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setupTitleAndCount(views);
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// Set up "new" button (compose new message) and "next view" button
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setActivityIntent(views, R.id.widget_compose, MessageCompose.class);
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setCommandIntent(views, R.id.widget_logo, COMMAND_URI_SWITCH_LIST_VIEW);
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// Use a bare intent for our template; we need to fill everything in
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intent = new Intent(sContext, WidgetService.class);
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PendingIntent pendingIntent =
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PendingIntent.getService(sContext, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
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views.setPendingIntentTemplate(R.id.message_list, pendingIntent);
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// And finally update the widget
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sWidgetManager.updateAppWidget(mWidgetId, views);
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}
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/**
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* Add size and color styling to text
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*
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* @param text the text to style
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* @param size the font size for this text
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* @param color the color for this text
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* @return a CharSequence quitable for use in RemoteViews.setTextViewText()
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*/
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private CharSequence addStyle(CharSequence text, int size, int color) {
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SpannableStringBuilder builder = new SpannableStringBuilder(text);
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builder.setSpan(
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new AbsoluteSizeSpan(size), 0, text.length(),
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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if (color != 0) {
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builder.setSpan(new ForegroundColorSpan(color), 0, text.length(),
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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return builder;
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}
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/**
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* Create styled text for our combination subject and snippet
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*
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* @param subject the message's subject (or null)
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* @param snippet the message's snippet (or null)
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* @param read whether or not the message is read
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* @return a CharSequence suitable for use in RemoteViews.setTextViewText()
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*/
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private CharSequence getStyledSubjectSnippet (String subject, String snippet,
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boolean read) {
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SpannableStringBuilder ssb = new SpannableStringBuilder();
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boolean hasSubject = false;
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if (!TextUtils.isEmpty(subject)) {
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SpannableString ss = new SpannableString(subject);
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ss.setSpan(new StyleSpan(read ? Typeface.NORMAL : Typeface.BOLD), 0, ss.length(),
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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ss.setSpan(new ForegroundColorSpan(sDefaultTextColor), 0, ss.length(),
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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ssb.append(ss);
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hasSubject = true;
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}
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if (!TextUtils.isEmpty(snippet)) {
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if (hasSubject) {
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ssb.append(sSubjectSnippetDivider);
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}
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SpannableString ss = new SpannableString(snippet);
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ss.setSpan(new ForegroundColorSpan(sLightTextColor), 0, snippet.length(),
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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ssb.append(ss);
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}
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return addStyle(ssb, sSubjectFontSize, 0);
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}
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/* (non-Javadoc)
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* @see android.widget.RemoteViewsService.RemoteViewsFactory#getViewAt(int)
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*/
|
|
public RemoteViews getViewAt(int position) {
|
|
// Use the cursor to set up the widget
|
|
synchronized (mCursorLock) {
|
|
if (mCursor == null || mCursor.isClosed() || !mCursor.moveToPosition(position)) {
|
|
return getLoadingView();
|
|
}
|
|
RemoteViews views =
|
|
new RemoteViews(sContext.getPackageName(), R.layout.widget_list_item);
|
|
boolean isUnread = mCursor.getInt(WIDGET_COLUMN_FLAG_READ) != 1;
|
|
|
|
// Add style to sender
|
|
SpannableStringBuilder from =
|
|
new SpannableStringBuilder(mCursor.getString(WIDGET_COLUMN_DISPLAY_NAME));
|
|
from.setSpan(
|
|
isUnread ? new StyleSpan(Typeface.BOLD) : new StyleSpan(Typeface.NORMAL), 0,
|
|
from.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
|
|
CharSequence styledFrom = addStyle(from, sSenderFontSize, sDefaultTextColor);
|
|
views.setTextViewText(R.id.widget_from, styledFrom);
|
|
|
|
long timestamp = mCursor.getLong(WIDGET_COLUMN_TIMESTAMP);
|
|
// Get a nicely formatted date string (relative to today)
|
|
String date = DateUtils.getRelativeTimeSpanString(sContext, timestamp).toString();
|
|
// Add style to date
|
|
CharSequence styledDate = addStyle(date, sDateFontSize, sDefaultTextColor);
|
|
views.setTextViewText(R.id.widget_date, styledDate);
|
|
|
|
// Add style to subject/snippet
|
|
String subject = mCursor.getString(WIDGET_COLUMN_SUBJECT);
|
|
String snippet = mCursor.getString(WIDGET_COLUMN_SNIPPET);
|
|
CharSequence subjectAndSnippet =
|
|
getStyledSubjectSnippet(subject, snippet, !isUnread);
|
|
views.setTextViewText(R.id.widget_subject, subjectAndSnippet);
|
|
|
|
if (mCursor.getInt(WIDGET_COLUMN_FLAG_ATTACHMENT) != 0) {
|
|
views.setViewVisibility(R.id.widget_attachment, View.VISIBLE);
|
|
} else {
|
|
views.setViewVisibility(R.id.widget_attachment, View.GONE);
|
|
}
|
|
|
|
// Set button intents for view, reply, and delete
|
|
String messageId = mCursor.getString(WIDGET_COLUMN_ID);
|
|
String mailboxId = mCursor.getString(WIDGET_COLUMN_MAILBOX_KEY);
|
|
setFillInIntent(views, R.id.widget_message, COMMAND_URI_VIEW_MESSAGE, messageId,
|
|
mailboxId);
|
|
|
|
return views;
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public int getCount() {
|
|
if (mCursor == null) return 0;
|
|
return Math.min(mCursor.getCount(), MAX_MESSAGE_LIST_COUNT);
|
|
}
|
|
|
|
@Override
|
|
public long getItemId(int position) {
|
|
return position;
|
|
}
|
|
|
|
@Override
|
|
public RemoteViews getLoadingView() {
|
|
RemoteViews view = new RemoteViews(sContext.getPackageName(), R.layout.widget_loading);
|
|
view.setTextViewText(R.id.loading_text, sContext.getString(R.string.widget_loading));
|
|
return view;
|
|
}
|
|
|
|
@Override
|
|
public int getViewTypeCount() {
|
|
// Regular list view and the "loading" view
|
|
return 2;
|
|
}
|
|
|
|
@Override
|
|
public boolean hasStableIds() {
|
|
return true;
|
|
}
|
|
|
|
@Override
|
|
public void onDataSetChanged() {
|
|
}
|
|
|
|
private void onDeleted() {
|
|
if (mLoader != null) {
|
|
mLoader.stopLoading();
|
|
}
|
|
sWidgetMap.remove(mWidgetId);
|
|
}
|
|
|
|
@Override
|
|
public void onDestroy() {
|
|
if (mLoader != null) {
|
|
mLoader.stopLoading();
|
|
}
|
|
sWidgetMap.remove(mWidgetId);
|
|
}
|
|
|
|
@Override
|
|
public void onCreate() {
|
|
}
|
|
}
|
|
|
|
private static synchronized void update(Context context, int[] appWidgetIds) {
|
|
for (int widgetId: appWidgetIds) {
|
|
getOrCreateWidget(context, widgetId).updateHeader();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Force a context for widgets (used by unit tests)
|
|
* @param context the Context to set
|
|
*/
|
|
/*package*/ static void setContextForTest(Context context) {
|
|
sContext = context;
|
|
sResolver = context.getContentResolver();
|
|
sWidgetManager = AppWidgetManager.getInstance(context);
|
|
}
|
|
|
|
/*package*/ static EmailWidget getOrCreateWidget(Context context, int widgetId) {
|
|
// Lazily initialize these
|
|
if (sContext == null) {
|
|
if (context == null) { // STOPSHIP remove this check
|
|
throw new RuntimeException("context == null!");
|
|
}
|
|
sContext = context.getApplicationContext();
|
|
if (sContext == null) { // STOPSHIP remove this check
|
|
throw new RuntimeException("getApplicationContext() returned null!");
|
|
}
|
|
sWidgetManager = AppWidgetManager.getInstance(context);
|
|
sResolver = context.getContentResolver();
|
|
}
|
|
EmailWidget widget = sWidgetMap.get(widgetId);
|
|
if (widget == null) {
|
|
if (Email.DEBUG) {
|
|
Log.d(TAG, "Creating EmailWidget for id #" + widgetId);
|
|
}
|
|
widget = new EmailWidget(widgetId);
|
|
widget.init();
|
|
sWidgetMap.put(widgetId, widget);
|
|
}
|
|
return widget;
|
|
}
|
|
|
|
@Override
|
|
public void onDisabled(Context context) {
|
|
super.onDisabled(context);
|
|
if (Email.DEBUG) {
|
|
Log.d(TAG, "onDisabled");
|
|
}
|
|
context.stopService(new Intent(context, WidgetService.class));
|
|
}
|
|
|
|
@Override
|
|
public void onEnabled(final Context context) {
|
|
super.onEnabled(context);
|
|
if (Email.DEBUG) {
|
|
Log.d(TAG, "onEnabled");
|
|
}
|
|
context.startService(new Intent(context, WidgetService.class));
|
|
}
|
|
|
|
@Override
|
|
public void onReceive(final Context context, Intent intent) {
|
|
String action = intent.getAction();
|
|
if (AppWidgetManager.ACTION_APPWIDGET_UPDATE.equals(action)) {
|
|
Bundle extras = intent.getExtras();
|
|
if (extras != null) {
|
|
final int[] appWidgetIds = extras.getIntArray(AppWidgetManager.EXTRA_APPWIDGET_IDS);
|
|
if (appWidgetIds != null && appWidgetIds.length > 0) {
|
|
context.startService(new Intent(context, WidgetService.class));
|
|
update(context, appWidgetIds);
|
|
}
|
|
}
|
|
} else if (AppWidgetManager.ACTION_APPWIDGET_DELETED.equals(action)) {
|
|
Bundle extras = intent.getExtras();
|
|
if (extras != null && extras.containsKey(AppWidgetManager.EXTRA_APPWIDGET_ID)) {
|
|
final int widgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID);
|
|
// Find the widget in the map
|
|
EmailWidget widget = sWidgetMap.get(widgetId);
|
|
if (widget != null) {
|
|
// Stop loading and remove the widget from the map
|
|
widget.onDeleted();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Utility class to handle switching widget views; in the background, we access the database
|
|
* to determine account status, etc. In the foreground, we start up the Loader with new
|
|
* parameters
|
|
*/
|
|
/*package*/ static class WidgetViewSwitcher extends AsyncTask<Void, Void, Void> {
|
|
private final EmailWidget mWidget;
|
|
private boolean mLoadAfterSwitch;
|
|
|
|
public WidgetViewSwitcher(EmailWidget widget) {
|
|
mWidget = widget;
|
|
}
|
|
|
|
/*package*/ void disableLoadAfterSwitchForTest() {
|
|
mLoadAfterSwitch = false;
|
|
}
|
|
|
|
@Override
|
|
protected Void doInBackground(Void... params) {
|
|
mWidget.switchToNextView();
|
|
return null;
|
|
}
|
|
|
|
@Override
|
|
protected void onPostExecute(Void param) {
|
|
if (isCancelled()) {
|
|
return;
|
|
}
|
|
if (mLoadAfterSwitch) {
|
|
mWidget.loadView();
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* We use the WidgetService for two purposes:
|
|
* 1) To provide a widget factory for RemoteViews, and
|
|
* 2) To process our command Uri's (i.e. take actions on user clicks)
|
|
*/
|
|
public static class WidgetService extends RemoteViewsService {
|
|
@Override
|
|
public RemoteViewsFactory onGetViewFactory(Intent intent) {
|
|
// Which widget do we want (nice alliteration, huh?)
|
|
int widgetId = intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
|
|
if (widgetId == -1) return null;
|
|
// Find the existing widget or create it
|
|
return getOrCreateWidget(this, widgetId);
|
|
}
|
|
|
|
@Override
|
|
public void startActivity(Intent intent) {
|
|
// Since we're not calling startActivity from an Activity, we need the new task flag
|
|
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_MULTIPLE_TASK);
|
|
super.startActivity(intent);
|
|
}
|
|
|
|
@Override
|
|
public int onStartCommand(Intent intent, int flags, int startId) {
|
|
Uri data = intent.getData();
|
|
if (data == null) return Service.START_NOT_STICKY;
|
|
List<String> pathSegments = data.getPathSegments();
|
|
// Our path segments are <command>, <arg1> [, <arg2>]
|
|
// First, a quick check of Uri validity
|
|
if (pathSegments.size() < 2) {
|
|
throw new IllegalArgumentException();
|
|
}
|
|
String command = pathSegments.get(0);
|
|
// Ignore unknown action names
|
|
try {
|
|
final long arg1 = Long.parseLong(pathSegments.get(1));
|
|
if (COMMAND_NAME_VIEW_MESSAGE.equals(command)) {
|
|
// "view", <message id>, <mailbox id>
|
|
final long mailboxId = Long.parseLong(pathSegments.get(2));
|
|
final long messageId = arg1;
|
|
Utility.runAsync(new Runnable() {
|
|
@Override
|
|
public void run() {
|
|
openMessage(mailboxId, messageId);
|
|
}
|
|
});
|
|
} else if (COMMAND_NAME_SWITCH_LIST_VIEW.equals(command)) {
|
|
// "next_view", <widget id>
|
|
EmailWidget widget = sWidgetMap.get((int)arg1);
|
|
if (widget != null) {
|
|
WidgetViewSwitcher switcher = new WidgetViewSwitcher(widget);
|
|
switcher.execute();
|
|
}
|
|
}
|
|
} catch (NumberFormatException e) {
|
|
// Shouldn't happen as we construct all of the Uri's
|
|
}
|
|
return Service.START_NOT_STICKY;
|
|
}
|
|
|
|
private void openMessage(long mailboxId, long messageId) {
|
|
Mailbox mailbox = Mailbox.restoreMailboxWithId(this, mailboxId);
|
|
if (mailbox == null) return;
|
|
startActivity(Welcome.createOpenMessageIntent(this, mailbox.mAccountKey, mailboxId,
|
|
messageId));
|
|
}
|
|
}
|
|
}
|