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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.messaging.widget;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import com.android.messaging.util.LogUtil;
public abstract class BaseWidgetProvider extends AppWidgetProvider {
protected static final String TAG = LogUtil.BUGLE_WIDGET_TAG;
public static final int WIDGET_CONVERSATION_REQUEST_CODE = 987;
static final String WIDGET_SIZE_KEY = "widgetSizeKey";
public static final int SIZE_LARGE = 0; // undefined == 0, which is the default, large
public static final int SIZE_SMALL = 1;
public static final int SIZE_MEDIUM = 2;
public static final int SIZE_PRE_JB = 3;
/**
* Update all widgets in the list
*/
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
super.onUpdate(context, appWidgetManager, appWidgetIds);
for (int i = 0; i < appWidgetIds.length; ++i) {
updateWidget(context, appWidgetIds[i]);
}
}
@Override
public void onReceive(Context context, Intent intent) {
if (LogUtil.isLoggable(TAG, LogUtil.VERBOSE)) {
LogUtil.v(TAG, "onReceive intent: " + intent + " for " + this.getClass());
}
final String action = intent.getAction();
// The base class AppWidgetProvider's onReceive handles the normal widget intents. Here
// we're looking for an intent sent by our app when it knows a message has
// been sent or received (or a conversation has been read) and is telling the widget it
// needs to update.
if (getAction().equals(action)) {
final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
final int[] appWidgetIds = appWidgetManager.getAppWidgetIds(new ComponentName(context,
this.getClass()));
if (appWidgetIds.length > 0) {
// We need to update all Bugle app widgets on the home screen.
if (LogUtil.isLoggable(TAG, LogUtil.VERBOSE)) {
LogUtil.v(TAG, "onReceive notifyAppWidgetViewDataChanged listId: " +
getListId() + " first widgetId: " + appWidgetIds[0]);
}
appWidgetManager.notifyAppWidgetViewDataChanged(appWidgetIds, getListId());
}
} else {
super.onReceive(context, intent);
}
}
@Override
public void onEnabled(Context context) {
super.onEnabled(context);
context.getApplicationContext().registerReceiver(this, new IntentFilter(getAction()));
}
protected abstract String getAction();
protected abstract int getListId();
/**
* Update the widget appWidgetId
*/
protected abstract void updateWidget(Context context, int appWidgetId);
private int getWidgetSize(AppWidgetManager appWidgetManager, int appWidgetId) {
if (LogUtil.isLoggable(TAG, LogUtil.VERBOSE)) {
LogUtil.v(TAG, "BaseWidgetProvider.getWidgetSize");
}
// Get the dimensions
final Bundle options = appWidgetManager.getAppWidgetOptions(appWidgetId);
// Get min width and height.
final int minWidth = options.getInt(AppWidgetManager.OPTION_APPWIDGET_MIN_WIDTH);
final int minHeight = options.getInt(AppWidgetManager.OPTION_APPWIDGET_MIN_HEIGHT);
// First find out rows and columns based on width provided.
final int rows = getCellsForSize(minHeight);
final int columns = getCellsForSize(minWidth);
if (LogUtil.isLoggable(TAG, LogUtil.VERBOSE)) {
LogUtil.v(TAG, "BaseWidgetProvider.getWidgetSize row: " + rows
+ " columns: " + columns);
}
int size = SIZE_MEDIUM;
if (rows == 1) {
size = SIZE_SMALL; // Our widget doesn't let itself get this small. Perhaps in the
// future will add a super-mini widget.
} else if (columns > 3) {
size = SIZE_LARGE;
}
// put the size in the bundle so our service know what size it's dealing with.
final int savedSize = options.getInt(WIDGET_SIZE_KEY);
if (savedSize != size) {
options.putInt(WIDGET_SIZE_KEY, size);
appWidgetManager.updateAppWidgetOptions(appWidgetId, options);
// The size changed. We have to force the widget to rebuild the list.
appWidgetManager.notifyAppWidgetViewDataChanged(appWidgetId, getListId());
if (LogUtil.isLoggable(TAG, LogUtil.VERBOSE)) {
LogUtil.v(TAG, "BaseWidgetProvider.getWidgetSize old size: " + savedSize
+ " new size saved: " + size);
}
}
return size;
}
/**
* Returns number of cells needed for given size of the widget.
*
* @param size Widget size in dp.
* @return Size in number of cells.
*/
private static int getCellsForSize(int size) {
// The hardwired sizes in this function come from the hardwired formula found in
// Android's UI guidelines for widget design:
// http://developer.android.com/guide/practices/ui_guidelines/widget_design.html
return (size + 30) / 70;
}
@Override
public void onAppWidgetOptionsChanged(Context context, AppWidgetManager appWidgetManager,
int appWidgetId, Bundle newOptions) {
final int widgetSize = getWidgetSize(appWidgetManager, appWidgetId);
if (LogUtil.isLoggable(TAG, LogUtil.VERBOSE)) {
LogUtil.v(TAG, "BaseWidgetProvider.onAppWidgetOptionsChanged new size: " +
widgetSize);
}
super.onAppWidgetOptionsChanged(context, appWidgetManager, appWidgetId, newOptions);
}
protected void deletePreferences(final int widgetId) {
}
/**
* Remove preferences when deleting widget
*/
@Override
public void onDeleted(Context context, int[] appWidgetIds) {
super.onDeleted(context, appWidgetIds);
if (LogUtil.isLoggable(TAG, LogUtil.VERBOSE)) {
LogUtil.v(TAG, "BaseWidgetProvider.onDeleted");
}
for (final int widgetId : appWidgetIds) {
deletePreferences(widgetId);
}
}
}
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