Initial checkin of AOSP Messaging app.
b/23110861 Change-Id: I9aa980d7569247d6b2ca78f5dcb4502e1eaadb8a
This commit is contained in:
Mike Dodd
232
src/com/android/messaging/widget/BaseWidgetFactory.java
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232
src/com/android/messaging/widget/BaseWidgetFactory.java
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/*
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* Copyright (C) 2015 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.messaging.widget;
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import android.appwidget.AppWidgetManager;
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import android.content.Context;
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import android.content.Intent;
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import android.database.Cursor;
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import android.graphics.Bitmap;
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import android.graphics.Typeface;
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import android.net.Uri;
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import android.os.Binder;
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import android.text.Spannable;
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import android.text.SpannableStringBuilder;
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import android.text.style.StyleSpan;
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import android.widget.RemoteViews;
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import android.widget.RemoteViewsService;
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import com.android.messaging.R;
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import com.android.messaging.datamodel.media.AvatarGroupRequestDescriptor;
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import com.android.messaging.datamodel.media.AvatarRequestDescriptor;
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import com.android.messaging.datamodel.media.ImageRequestDescriptor;
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import com.android.messaging.datamodel.media.ImageResource;
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import com.android.messaging.datamodel.media.MediaRequest;
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import com.android.messaging.datamodel.media.MediaResourceManager;
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import com.android.messaging.util.AvatarUriUtil;
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import com.android.messaging.util.LogUtil;
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/**
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* Remote Views Factory for Bugle Widget.
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*/
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abstract class BaseWidgetFactory implements RemoteViewsService.RemoteViewsFactory {
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protected static final String TAG = LogUtil.BUGLE_WIDGET_TAG;
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protected static final int MAX_ITEMS_TO_SHOW = 25;
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/**
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* Lock to avoid race condition between widgets.
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*/
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protected static final Object sWidgetLock = new Object();
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protected final Context mContext;
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protected final int mAppWidgetId;
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protected boolean mShouldShowViewMore;
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protected Cursor mCursor;
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protected final AppWidgetManager mAppWidgetManager;
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protected int mIconSize;
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protected ImageResource mAvatarResource;
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public BaseWidgetFactory(Context context, Intent intent) {
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mContext = context;
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mAppWidgetId = intent.getIntExtra(
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AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
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mAppWidgetManager = AppWidgetManager.getInstance(context);
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if (LogUtil.isLoggable(TAG, LogUtil.VERBOSE)) {
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LogUtil.v(TAG, "BaseWidgetFactory intent: " + intent + "widget id: " + mAppWidgetId);
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}
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mIconSize = (int) context.getResources()
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.getDimension(R.dimen.contact_icon_view_normal_size);
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}
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@Override
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public void onCreate() {
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if (LogUtil.isLoggable(TAG, LogUtil.VERBOSE)) {
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LogUtil.v(TAG, "onCreate");
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}
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}
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@Override
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public void onDestroy() {
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if (LogUtil.isLoggable(TAG, LogUtil.VERBOSE)) {
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LogUtil.v(TAG, "onDestroy");
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}
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synchronized (sWidgetLock) {
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if (mCursor != null && !mCursor.isClosed()) {
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mCursor.close();
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mCursor = null;
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}
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}
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}
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@Override
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public void onDataSetChanged() {
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if (LogUtil.isLoggable(TAG, LogUtil.VERBOSE)) {
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LogUtil.v(TAG, "onDataSetChanged");
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}
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synchronized (sWidgetLock) {
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if (mCursor != null) {
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mCursor.close();
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mCursor = null;
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}
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final long token = Binder.clearCallingIdentity();
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try {
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mCursor = doQuery();
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onLoadComplete();
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} finally {
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Binder.restoreCallingIdentity(token);
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}
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}
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}
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protected abstract Cursor doQuery();
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/**
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* Returns the number of items that should be shown in the widget list. This method also
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* updates the boolean that indicates whether the "show more" item should be shown.
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* @return the number of items to be displayed in the list.
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*/
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@Override
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public int getCount() {
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synchronized (sWidgetLock) {
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if (mCursor == null) {
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if (LogUtil.isLoggable(TAG, LogUtil.VERBOSE)) {
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LogUtil.v(TAG, "getCount: 0");
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}
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return 0;
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}
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final int count = getItemCount();
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if (LogUtil.isLoggable(TAG, LogUtil.VERBOSE)) {
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LogUtil.v(TAG, "getCount: " + count);
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}
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mShouldShowViewMore = count < mCursor.getCount();
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return count + (mShouldShowViewMore ? 1 : 0);
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}
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}
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/**
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* Returns the number of messages that should be shown in the widget. This method
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* doesn't update the boolean that indicates whether the "show more" item should be included
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* in the list.
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* @return
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*/
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protected int getItemCount() {
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if (LogUtil.isLoggable(TAG, LogUtil.VERBOSE)) {
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LogUtil.v(TAG, "getItemCount: " + mCursor.getCount());
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}
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return Math.min(mCursor.getCount(), MAX_ITEMS_TO_SHOW);
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}
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/*
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* Make the given text bold if the item is unread
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*/
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protected CharSequence boldifyIfUnread(CharSequence text, final boolean unread) {
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if (!unread) {
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return text;
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}
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final SpannableStringBuilder builder = new SpannableStringBuilder(text);
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builder.setSpan(new StyleSpan(Typeface.BOLD), 0, text.length(),
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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return builder;
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}
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protected Bitmap getAvatarBitmap(final Uri avatarUri) {
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final String avatarType = avatarUri == null ?
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null : AvatarUriUtil.getAvatarType(avatarUri);
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ImageRequestDescriptor descriptor;
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if (AvatarUriUtil.TYPE_GROUP_URI.equals(avatarType)) {
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descriptor = new AvatarGroupRequestDescriptor(avatarUri, mIconSize, mIconSize);
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} else {
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descriptor = new AvatarRequestDescriptor(avatarUri, mIconSize, mIconSize);
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}
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final MediaRequest<ImageResource> imageRequest =
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descriptor.buildSyncMediaRequest(mContext);
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final ImageResource imageResource =
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MediaResourceManager.get().requestMediaResourceSync(imageRequest);
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if (imageResource != null) {
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setAvatarResource(imageResource);
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return mAvatarResource.getBitmap();
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} else {
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releaseAvatarResource();
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return null;
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}
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}
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/**
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* @return the "View more messages" view. When the user taps this item, they're
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* taken to the conversation in Bugle.
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*/
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abstract protected RemoteViews getViewMoreItemsView();
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@Override
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public boolean hasStableIds() {
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return true;
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}
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@Override
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public long getItemId(int position) {
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return position;
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}
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private void onLoadComplete() {
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if (LogUtil.isLoggable(TAG, LogUtil.VERBOSE)) {
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LogUtil.v(TAG, "onLoadComplete");
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}
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final RemoteViews remoteViews = new RemoteViews(mContext.getPackageName(),
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getMainLayoutId());
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mAppWidgetManager.partiallyUpdateAppWidget(mAppWidgetId, remoteViews);
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}
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protected abstract int getMainLayoutId();
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private void setAvatarResource(final ImageResource resource) {
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if (mAvatarResource != resource) {
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// Clear out any information for what is currently used
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releaseAvatarResource();
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mAvatarResource = resource;
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}
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}
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private void releaseAvatarResource() {
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if (mAvatarResource != null) {
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mAvatarResource.release();
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}
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mAvatarResource = null;
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}
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}
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