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package com.android.launcher3.model;
import android.appwidget.AppWidgetProviderInfo;
import android.content.Context;
import android.content.pm.PackageManager;
import android.os.Process;
import android.os.UserHandle;
import android.support.annotation.Nullable;
import android.util.Log;
import com.android.launcher3.AppFilter;
import com.android.launcher3.IconCache;
import com.android.launcher3.InvariantDeviceProfile;
import com.android.launcher3.LauncherAppState;
import com.android.launcher3.LauncherAppWidgetProviderInfo;
import com.android.launcher3.Utilities;
import com.android.launcher3.compat.AppWidgetManagerCompat;
import com.android.launcher3.compat.LauncherAppsCompat;
import com.android.launcher3.compat.ShortcutConfigActivityInfo;
import com.android.launcher3.config.FeatureFlags;
import com.android.launcher3.util.MultiHashMap;
import com.android.launcher3.util.PackageUserKey;
import com.android.launcher3.util.Preconditions;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
/**
* Widgets data model that is used by the adapters of the widget views and controllers.
*
* <p> The widgets and shortcuts are organized using package name as its index.
*/
public class WidgetsModel {
private static final String TAG = "WidgetsModel";
private static final boolean DEBUG = false;
/* Map of widgets and shortcuts that are tracked per package. */
private final MultiHashMap<PackageItemInfo, WidgetItem> mWidgetsList = new MultiHashMap<>();
private AppFilter mAppFilter;
public synchronized MultiHashMap<PackageItemInfo, WidgetItem> getWidgetsMap() {
return mWidgetsList.clone();
}
/**
* @param packageUser If null, all widgets and shortcuts are updated and returned, otherwise
* only widgets and shortcuts associated with the package/user are.
*/
public void update(LauncherAppState app, @Nullable PackageUserKey packageUser) {
Preconditions.assertWorkerThread();
Context context = app.getContext();
final ArrayList<WidgetItem> widgetsAndShortcuts = new ArrayList<>();
try {
PackageManager pm = context.getPackageManager();
InvariantDeviceProfile idp = app.getInvariantDeviceProfile();
// Widgets
AppWidgetManagerCompat widgetManager = AppWidgetManagerCompat.getInstance(context);
for (AppWidgetProviderInfo widgetInfo : widgetManager.getAllProviders(packageUser)) {
widgetsAndShortcuts.add(new WidgetItem(LauncherAppWidgetProviderInfo
.fromProviderInfo(context, widgetInfo), pm, idp));
}
// Shortcuts
for (ShortcutConfigActivityInfo info : LauncherAppsCompat.getInstance(context)
.getCustomShortcutActivityList(packageUser)) {
widgetsAndShortcuts.add(new WidgetItem(info));
}
setWidgetsAndShortcuts(widgetsAndShortcuts, app, packageUser);
} catch (Exception e) {
if (!FeatureFlags.IS_DOGFOOD_BUILD && Utilities.isBinderSizeError(e)) {
// the returned value may be incomplete and will not be refreshed until the next
// time Launcher starts.
// TODO: after figuring out a repro step, introduce a dirty bit to check when
// onResume is called to refresh the widget provider list.
} else {
throw e;
}
}
app.getWidgetCache().removeObsoletePreviews(widgetsAndShortcuts, packageUser);
}
private synchronized void setWidgetsAndShortcuts(ArrayList<WidgetItem> rawWidgetsShortcuts,
LauncherAppState app, @Nullable PackageUserKey packageUser) {
if (DEBUG) {
Log.d(TAG, "addWidgetsAndShortcuts, widgetsShortcuts#=" + rawWidgetsShortcuts.size());
}
// Temporary list for {@link PackageItemInfos} to avoid having to go through
// {@link mPackageItemInfos} to locate the key to be used for {@link #mWidgetsList}
HashMap<String, PackageItemInfo> tmpPackageItemInfos = new HashMap<>();
// clear the lists.
if (packageUser == null) {
mWidgetsList.clear();
} else {
// Only clear the widgets for the given package/user.
PackageItemInfo packageItem = null;
for (PackageItemInfo item : mWidgetsList.keySet()) {
if (item.packageName.equals(packageUser.mPackageName)) {
packageItem = item;
break;
}
}
if (packageItem != null) {
// We want to preserve the user that was on the packageItem previously,
// so add it to tmpPackageItemInfos here to avoid creating a new entry.
tmpPackageItemInfos.put(packageItem.packageName, packageItem);
Iterator<WidgetItem> widgetItemIterator = mWidgetsList.get(packageItem).iterator();
while (widgetItemIterator.hasNext()) {
WidgetItem nextWidget = widgetItemIterator.next();
if (nextWidget.componentName.getPackageName().equals(packageUser.mPackageName)
&& nextWidget.user.equals(packageUser.mUser)) {
widgetItemIterator.remove();
}
}
}
}
InvariantDeviceProfile idp = app.getInvariantDeviceProfile();
UserHandle myUser = Process.myUserHandle();
// add and update.
for (WidgetItem item : rawWidgetsShortcuts) {
if (item.widgetInfo != null) {
// Ensure that all widgets we show can be added on a workspace of this size
int minSpanX = Math.min(item.widgetInfo.spanX, item.widgetInfo.minSpanX);
int minSpanY = Math.min(item.widgetInfo.spanY, item.widgetInfo.minSpanY);
if (minSpanX > idp.numColumns || minSpanY > idp.numRows) {
if (DEBUG) {
Log.d(TAG, String.format(
"Widget %s : (%d X %d) can't fit on this device",
item.componentName, minSpanX, minSpanY));
}
continue;
}
}
if (mAppFilter == null) {
mAppFilter = AppFilter.newInstance(app.getContext());
}
if (!mAppFilter.shouldShowApp(item.componentName)) {
if (DEBUG) {
Log.d(TAG, String.format("%s is filtered and not added to the widget tray.",
item.componentName));
}
continue;
}
String packageName = item.componentName.getPackageName();
PackageItemInfo pInfo = tmpPackageItemInfos.get(packageName);
if (pInfo == null) {
pInfo = new PackageItemInfo(packageName);
pInfo.user = item.user;
tmpPackageItemInfos.put(packageName, pInfo);
} else if (!myUser.equals(pInfo.user)) {
// Keep updating the user, until we get the primary user.
pInfo.user = item.user;
}
mWidgetsList.addToList(pInfo, item);
}
// Update each package entry
IconCache iconCache = app.getIconCache();
for (PackageItemInfo p : tmpPackageItemInfos.values()) {
iconCache.getTitleAndIconForApp(p, true /* userLowResIcon */);
}
}
}
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