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/*
* Copyright (C) 2008 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.launcher3;
import android.appwidget.AppWidgetProviderInfo;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.ContentProviderOperation;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.LauncherActivityInfo;
import android.net.Uri;
import android.os.Handler;
import android.os.HandlerThread;
import android.os.Looper;
import android.os.Process;
import android.os.SystemClock;
import android.os.Trace;
import android.os.UserHandle;
import android.support.annotation.Nullable;
import android.text.TextUtils;
import android.util.Log;
import android.util.LongSparseArray;
import android.util.MutableInt;
import com.android.launcher3.compat.AppWidgetManagerCompat;
import com.android.launcher3.compat.LauncherAppsCompat;
import com.android.launcher3.compat.PackageInstallerCompat;
import com.android.launcher3.compat.PackageInstallerCompat.PackageInstallInfo;
import com.android.launcher3.compat.UserManagerCompat;
import com.android.launcher3.config.ProviderConfig;
import com.android.launcher3.dynamicui.ExtractionUtils;
import com.android.launcher3.folder.Folder;
import com.android.launcher3.folder.FolderIcon;
import com.android.launcher3.graphics.LauncherIcons;
import com.android.launcher3.logging.FileLog;
import com.android.launcher3.model.AddWorkspaceItemsTask;
import com.android.launcher3.model.BgDataModel;
import com.android.launcher3.model.CacheDataUpdatedTask;
import com.android.launcher3.model.ExtendedModelTask;
import com.android.launcher3.model.GridSizeMigrationTask;
import com.android.launcher3.model.LoaderCursor;
import com.android.launcher3.model.ModelWriter;
import com.android.launcher3.model.PackageInstallStateChangedTask;
import com.android.launcher3.model.PackageItemInfo;
import com.android.launcher3.model.PackageUpdatedTask;
import com.android.launcher3.model.SdCardAvailableReceiver;
import com.android.launcher3.model.ShortcutsChangedTask;
import com.android.launcher3.model.UserLockStateChangedTask;
import com.android.launcher3.model.WidgetItem;
import com.android.launcher3.model.WidgetsModel;
import com.android.launcher3.provider.ImportDataTask;
import com.android.launcher3.provider.LauncherDbUtils;
import com.android.launcher3.shortcuts.DeepShortcutManager;
import com.android.launcher3.shortcuts.ShortcutInfoCompat;
import com.android.launcher3.shortcuts.ShortcutKey;
import com.android.launcher3.util.ComponentKey;
import com.android.launcher3.util.ManagedProfileHeuristic;
import com.android.launcher3.util.MultiHashMap;
import com.android.launcher3.util.PackageManagerHelper;
import com.android.launcher3.util.PackageUserKey;
import com.android.launcher3.util.Preconditions;
import com.android.launcher3.util.Provider;
import com.android.launcher3.util.Thunk;
import com.android.launcher3.util.ViewOnDrawExecutor;
import java.io.FileDescriptor;
import java.io.PrintWriter;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.CancellationException;
import java.util.concurrent.Executor;
/**
* Maintains in-memory state of the Launcher. It is expected that there should be only one
* LauncherModel object held in a static. Also provide APIs for updating the database state
* for the Launcher.
*/
public class LauncherModel extends BroadcastReceiver
implements LauncherAppsCompat.OnAppsChangedCallbackCompat {
static final boolean DEBUG_LOADERS = false;
private static final boolean DEBUG_RECEIVER = false;
static final String TAG = "Launcher.Model";
private static final int ITEMS_CHUNK = 6; // batch size for the workspace icons
private static final long INVALID_SCREEN_ID = -1L;
@Thunk final LauncherAppState mApp;
@Thunk final Object mLock = new Object();
@Thunk DeferredHandler mHandler = new DeferredHandler();
@Thunk LoaderTask mLoaderTask;
@Thunk boolean mIsLoaderTaskRunning;
@Thunk boolean mHasLoaderCompletedOnce;
@Thunk boolean mIsManagedHeuristicAppsUpdated;
@Thunk static final HandlerThread sWorkerThread = new HandlerThread("launcher-loader");
static {
sWorkerThread.start();
}
@Thunk static final Handler sWorker = new Handler(sWorkerThread.getLooper());
// Indicates whether the current model data is valid or not.
// We start off with everything not loaded. After that, we assume that
// our monitoring of the package manager provides all updates and we never
// need to do a requery. This is only ever touched from the loader thread.
private boolean mModelLoaded;
public boolean isModelLoaded() {
synchronized (mLock) {
return mModelLoaded && mLoaderTask == null;
}
}
/**
* Set of runnables to be called on the background thread after the workspace binding
* is complete.
*/
static final ArrayList<Runnable> mBindCompleteRunnables = new ArrayList<Runnable>();
@Thunk WeakReference<Callbacks> mCallbacks;
// < only access in worker thread >
private final AllAppsList mBgAllAppsList;
// Entire list of widgets.
private final WidgetsModel mBgWidgetsModel;
private boolean mHasShortcutHostPermission;
// Runnable to check if the shortcuts permission has changed.
private final Runnable mShortcutPermissionCheckRunnable = new Runnable() {
@Override
public void run() {
if (mModelLoaded) {
boolean hasShortcutHostPermission =
DeepShortcutManager.getInstance(mApp.getContext()).hasHostPermission();
if (hasShortcutHostPermission != mHasShortcutHostPermission) {
forceReload();
}
}
}
};
/**
* All the static data should be accessed on the background thread, A lock should be acquired
* on this object when accessing any data from this model.
*/
static final BgDataModel sBgDataModel = new BgDataModel();
// </ only access in worker thread >
private final IconCache mIconCache;
private final LauncherAppsCompat mLauncherApps;
private final UserManagerCompat mUserManager;
public interface Callbacks {
public boolean setLoadOnResume();
public int getCurrentWorkspaceScreen();
public void clearPendingBinds();
public void startBinding();
public void bindItems(ArrayList<ItemInfo> shortcuts, int start, int end,
boolean forceAnimateIcons);
public void bindScreens(ArrayList<Long> orderedScreenIds);
public void finishFirstPageBind(ViewOnDrawExecutor executor);
public void finishBindingItems();
public void bindAppWidget(LauncherAppWidgetInfo info);
public void bindAllApplications(ArrayList<AppInfo> apps);
public void bindAppsAdded(ArrayList<Long> newScreens,
ArrayList<ItemInfo> addNotAnimated,
ArrayList<ItemInfo> addAnimated,
ArrayList<AppInfo> addedApps);
public void bindAppsUpdated(ArrayList<AppInfo> apps);
public void bindShortcutsChanged(ArrayList<ShortcutInfo> updated,
ArrayList<ShortcutInfo> removed, UserHandle user);
public void bindWidgetsRestored(ArrayList<LauncherAppWidgetInfo> widgets);
public void bindRestoreItemsChange(HashSet<ItemInfo> updates);
public void bindWorkspaceComponentsRemoved(
HashSet<String> packageNames, HashSet<ComponentName> components,
UserHandle user);
public void bindAppInfosRemoved(ArrayList<AppInfo> appInfos);
public void notifyWidgetProvidersChanged();
public void bindAllWidgets(MultiHashMap<PackageItemInfo, WidgetItem> widgets);
public void onPageBoundSynchronously(int page);
public void executeOnNextDraw(ViewOnDrawExecutor executor);
public void bindDeepShortcutMap(MultiHashMap<ComponentKey, String> deepShortcutMap);
}
LauncherModel(LauncherAppState app, IconCache iconCache, AppFilter appFilter) {
Context context = app.getContext();
mApp = app;
mBgAllAppsList = new AllAppsList(iconCache, appFilter);
mBgWidgetsModel = new WidgetsModel(iconCache, appFilter);
mIconCache = iconCache;
mLauncherApps = LauncherAppsCompat.getInstance(context);
mUserManager = UserManagerCompat.getInstance(context);
}
/** Runs the specified runnable immediately if called from the main thread, otherwise it is
* posted on the main thread handler. */
private void runOnMainThread(Runnable r) {
if (sWorkerThread.getThreadId() == Process.myTid()) {
// If we are on the worker thread, post onto the main handler
mHandler.post(r);
} else {
r.run();
}
}
/** Runs the specified runnable immediately if called from the worker thread, otherwise it is
* posted on the worker thread handler. */
private static void runOnWorkerThread(Runnable r) {
if (sWorkerThread.getThreadId() == Process.myTid()) {
r.run();
} else {
// If we are not on the worker thread, then post to the worker handler
sWorker.post(r);
}
}
public void setPackageState(PackageInstallInfo installInfo) {
enqueueModelUpdateTask(new PackageInstallStateChangedTask(installInfo));
}
/**
* Updates the icons and label of all pending icons for the provided package name.
*/
public void updateSessionDisplayInfo(final String packageName) {
HashSet<String> packages = new HashSet<>();
packages.add(packageName);
enqueueModelUpdateTask(new CacheDataUpdatedTask(
CacheDataUpdatedTask.OP_SESSION_UPDATE, Process.myUserHandle(), packages));
}
/**
* Adds the provided items to the workspace.
*/
public void addAndBindAddedWorkspaceItems(List<ItemInfo> workspaceApps) {
addAndBindAddedWorkspaceItems(Provider.of(workspaceApps));
}
/**
* Adds the provided items to the workspace.
*/
public void addAndBindAddedWorkspaceItems(
Provider<List<ItemInfo>> appsProvider) {
enqueueModelUpdateTask(new AddWorkspaceItemsTask(appsProvider));
}
public ModelWriter getWriter(boolean hasVerticalHotseat) {
return new ModelWriter(mApp.getContext(), sBgDataModel, hasVerticalHotseat);
}
static void checkItemInfoLocked(
final long itemId, final ItemInfo item, StackTraceElement[] stackTrace) {
ItemInfo modelItem = sBgDataModel.itemsIdMap.get(itemId);
if (modelItem != null && item != modelItem) {
// check all the data is consistent
if (modelItem instanceof ShortcutInfo && item instanceof ShortcutInfo) {
ShortcutInfo modelShortcut = (ShortcutInfo) modelItem;
ShortcutInfo shortcut = (ShortcutInfo) item;
if (modelShortcut.title.toString().equals(shortcut.title.toString()) &&
modelShortcut.intent.filterEquals(shortcut.intent) &&
modelShortcut.id == shortcut.id &&
modelShortcut.itemType == shortcut.itemType &&
modelShortcut.container == shortcut.container &&
modelShortcut.screenId == shortcut.screenId &&
modelShortcut.cellX == shortcut.cellX &&
modelShortcut.cellY == shortcut.cellY &&
modelShortcut.spanX == shortcut.spanX &&
modelShortcut.spanY == shortcut.spanY) {
// For all intents and purposes, this is the same object
return;
}
}
// the modelItem needs to match up perfectly with item if our model is
// to be consistent with the database-- for now, just require
// modelItem == item or the equality check above
String msg = "item: " + ((item != null) ? item.toString() : "null") +
"modelItem: " +
((modelItem != null) ? modelItem.toString() : "null") +
"Error: ItemInfo passed to checkItemInfo doesn't match original";
RuntimeException e = new RuntimeException(msg);
if (stackTrace != null) {
e.setStackTrace(stackTrace);
}
throw e;
}
}
static void checkItemInfo(final ItemInfo item) {
final StackTraceElement[] stackTrace = new Throwable().getStackTrace();
final long itemId = item.id;
Runnable r = new Runnable() {
public void run() {
synchronized (sBgDataModel) {
checkItemInfoLocked(itemId, item, stackTrace);
}
}
};
runOnWorkerThread(r);
}
/**
* Update the order of the workspace screens in the database. The array list contains
* a list of screen ids in the order that they should appear.
*/
public static void updateWorkspaceScreenOrder(Context context, final ArrayList<Long> screens) {
final ArrayList<Long> screensCopy = new ArrayList<Long>(screens);
final ContentResolver cr = context.getContentResolver();
final Uri uri = LauncherSettings.WorkspaceScreens.CONTENT_URI;
// Remove any negative screen ids -- these aren't persisted
Iterator<Long> iter = screensCopy.iterator();
while (iter.hasNext()) {
long id = iter.next();
if (id < 0) {
iter.remove();
}
}
Runnable r = new Runnable() {
@Override
public void run() {
ArrayList<ContentProviderOperation> ops = new ArrayList<ContentProviderOperation>();
// Clear the table
ops.add(ContentProviderOperation.newDelete(uri).build());
int count = screensCopy.size();
for (int i = 0; i < count; i++) {
ContentValues v = new ContentValues();
long screenId = screensCopy.get(i);
v.put(LauncherSettings.WorkspaceScreens._ID, screenId);
v.put(LauncherSettings.WorkspaceScreens.SCREEN_RANK, i);
ops.add(ContentProviderOperation.newInsert(uri).withValues(v).build());
}
try {
cr.applyBatch(LauncherProvider.AUTHORITY, ops);
} catch (Exception ex) {
throw new RuntimeException(ex);
}
synchronized (sBgDataModel) {
sBgDataModel.workspaceScreens.clear();
sBgDataModel.workspaceScreens.addAll(screensCopy);
}
}
};
runOnWorkerThread(r);
}
/**
* Set this as the current Launcher activity object for the loader.
*/
public void initialize(Callbacks callbacks) {
synchronized (mLock) {
Preconditions.assertUIThread();
// Remove any queued UI runnables
mHandler.cancelAll();
mCallbacks = new WeakReference<>(callbacks);
}
}
@Override
public void onPackageChanged(String packageName, UserHandle user) {
int op = PackageUpdatedTask.OP_UPDATE;
enqueueModelUpdateTask(new PackageUpdatedTask(op, user, packageName));
}
@Override
public void onPackageRemoved(String packageName, UserHandle user) {
onPackagesRemoved(user, packageName);
}
public void onPackagesRemoved(UserHandle user, String... packages) {
int op = PackageUpdatedTask.OP_REMOVE;
enqueueModelUpdateTask(new PackageUpdatedTask(op, user, packages));
}
@Override
public void onPackageAdded(String packageName, UserHandle user) {
int op = PackageUpdatedTask.OP_ADD;
enqueueModelUpdateTask(new PackageUpdatedTask(op, user, packageName));
}
@Override
public void onPackagesAvailable(String[] packageNames, UserHandle user,
boolean replacing) {
enqueueModelUpdateTask(
new PackageUpdatedTask(PackageUpdatedTask.OP_UPDATE, user, packageNames));
}
@Override
public void onPackagesUnavailable(String[] packageNames, UserHandle user,
boolean replacing) {
if (!replacing) {
enqueueModelUpdateTask(new PackageUpdatedTask(
PackageUpdatedTask.OP_UNAVAILABLE, user, packageNames));
}
}
@Override
public void onPackagesSuspended(String[] packageNames, UserHandle user) {
enqueueModelUpdateTask(new PackageUpdatedTask(
PackageUpdatedTask.OP_SUSPEND, user, packageNames));
}
@Override
public void onPackagesUnsuspended(String[] packageNames, UserHandle user) {
enqueueModelUpdateTask(new PackageUpdatedTask(
PackageUpdatedTask.OP_UNSUSPEND, user, packageNames));
}
@Override
public void onShortcutsChanged(String packageName, List<ShortcutInfoCompat> shortcuts,
UserHandle user) {
enqueueModelUpdateTask(new ShortcutsChangedTask(packageName, shortcuts, user, true));
}
public void updatePinnedShortcuts(String packageName, List<ShortcutInfoCompat> shortcuts,
UserHandle user) {
enqueueModelUpdateTask(new ShortcutsChangedTask(packageName, shortcuts, user, false));
}
/**
* Call from the handler for ACTION_PACKAGE_ADDED, ACTION_PACKAGE_REMOVED and
* ACTION_PACKAGE_CHANGED.
*/
@Override
public void onReceive(Context context, Intent intent) {
if (DEBUG_RECEIVER) Log.d(TAG, "onReceive intent=" + intent);
final String action = intent.getAction();
if (Intent.ACTION_LOCALE_CHANGED.equals(action)) {
// If we have changed locale we need to clear out the labels in all apps/workspace.
forceReload();
} else if (Intent.ACTION_MANAGED_PROFILE_ADDED.equals(action)
|| Intent.ACTION_MANAGED_PROFILE_REMOVED.equals(action)) {
UserManagerCompat.getInstance(context).enableAndResetCache();
forceReload();
} else if (Intent.ACTION_MANAGED_PROFILE_AVAILABLE.equals(action) ||
Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE.equals(action) ||
Intent.ACTION_MANAGED_PROFILE_UNLOCKED.equals(action)) {
UserHandle user = intent.getParcelableExtra(Intent.EXTRA_USER);
if (user != null) {
if (Intent.ACTION_MANAGED_PROFILE_AVAILABLE.equals(action) ||
Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE.equals(action)) {
enqueueModelUpdateTask(new PackageUpdatedTask(
PackageUpdatedTask.OP_USER_AVAILABILITY_CHANGE, user));
}
// ACTION_MANAGED_PROFILE_UNAVAILABLE sends the profile back to locked mode, so
// we need to run the state change task again.
if (Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE.equals(action) ||
Intent.ACTION_MANAGED_PROFILE_UNLOCKED.equals(action)) {
enqueueModelUpdateTask(new UserLockStateChangedTask(user));
}
}
} else if (Intent.ACTION_WALLPAPER_CHANGED.equals(action)) {
ExtractionUtils.startColorExtractionServiceIfNecessary(context);
}
}
/**
* Reloads the workspace items from the DB and re-binds the workspace. This should generally
* not be called as DB updates are automatically followed by UI update
*/
public void forceReload() {
synchronized (mLock) {
// Stop any existing loaders first, so they don't set mModelLoaded to true later
stopLoaderLocked();
mModelLoaded = false;
}
// Do this here because if the launcher activity is running it will be restarted.
// If it's not running startLoaderFromBackground will merely tell it that it needs
// to reload.
startLoaderFromBackground();
}
/**
* When the launcher is in the background, it's possible for it to miss paired
* configuration changes. So whenever we trigger the loader from the background
* tell the launcher that it needs to re-run the loader when it comes back instead
* of doing it now.
*/
public void startLoaderFromBackground() {
Callbacks callbacks = getCallback();
if (callbacks != null) {
// Only actually run the loader if they're not paused.
if (!callbacks.setLoadOnResume()) {
startLoader(callbacks.getCurrentWorkspaceScreen());
}
}
}
/**
* If there is already a loader task running, tell it to stop.
*/
private void stopLoaderLocked() {
LoaderTask oldTask = mLoaderTask;
if (oldTask != null) {
oldTask.stopLocked();
}
}
public boolean isCurrentCallbacks(Callbacks callbacks) {
return (mCallbacks != null && mCallbacks.get() == callbacks);
}
/**
* Starts the loader. Tries to bind {@params synchronousBindPage} synchronously if possible.
* @return true if the page could be bound synchronously.
*/
public boolean startLoader(int synchronousBindPage) {
// Enable queue before starting loader. It will get disabled in Launcher#finishBindingItems
InstallShortcutReceiver.enableInstallQueue();
synchronized (mLock) {
// Don't bother to start the thread if we know it's not going to do anything
if (mCallbacks != null && mCallbacks.get() != null) {
final Callbacks oldCallbacks = mCallbacks.get();
// Clear any pending bind-runnables from the synchronized load process.
runOnMainThread(new Runnable() {
public void run() {
oldCallbacks.clearPendingBinds();
}
});
// If there is already one running, tell it to stop.
stopLoaderLocked();
mLoaderTask = new LoaderTask(mApp.getContext(), synchronousBindPage);
if (synchronousBindPage != PagedView.INVALID_RESTORE_PAGE
&& mModelLoaded && !mIsLoaderTaskRunning) {
mLoaderTask.runBindSynchronousPage(synchronousBindPage);
return true;
} else {
sWorkerThread.setPriority(Thread.NORM_PRIORITY);
sWorker.post(mLoaderTask);
}
}
}
return false;
}
public void stopLoader() {
synchronized (mLock) {
if (mLoaderTask != null) {
mLoaderTask.stopLocked();
}
}
}
/**
* Loads the workspace screen ids in an ordered list.
*/
public static ArrayList<Long> loadWorkspaceScreensDb(Context context) {
final ContentResolver contentResolver = context.getContentResolver();
final Uri screensUri = LauncherSettings.WorkspaceScreens.CONTENT_URI;
// Get screens ordered by rank.
return LauncherDbUtils.getScreenIdsFromCursor(contentResolver.query(
screensUri, null, null, null, LauncherSettings.WorkspaceScreens.SCREEN_RANK));
}
/**
* Runnable for the thread that loads the contents of the launcher:
* - workspace icons
* - widgets
* - all apps icons
* - deep shortcuts within apps
*/
private class LoaderTask implements Runnable {
private Context mContext;
private int mPageToBindFirst;
@Thunk boolean mIsLoadingAndBindingWorkspace;
private boolean mStopped;
@Thunk boolean mLoadAndBindStepFinished;
LoaderTask(Context context, int pageToBindFirst) {
mContext = context;
mPageToBindFirst = pageToBindFirst;
}
private void waitForIdle() {
// Wait until the either we're stopped or the other threads are done.
// This way we don't start loading all apps until the workspace has settled
// down.
synchronized (LoaderTask.this) {
final long workspaceWaitTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0;
mHandler.postIdle(new Runnable() {
public void run() {
synchronized (LoaderTask.this) {
mLoadAndBindStepFinished = true;
if (DEBUG_LOADERS) {
Log.d(TAG, "done with previous binding step");
}
LoaderTask.this.notify();
}
}
});
while (!mStopped && !mLoadAndBindStepFinished) {
try {
// Just in case mFlushingWorkerThread changes but we aren't woken up,
// wait no longer than 1sec at a time
this.wait(1000);
} catch (InterruptedException ex) {
// Ignore
}
}
if (DEBUG_LOADERS) {
Log.d(TAG, "waited "
+ (SystemClock.uptimeMillis()-workspaceWaitTime)
+ "ms for previous step to finish binding");
}
}
}
void runBindSynchronousPage(int synchronousBindPage) {
if (synchronousBindPage == PagedView.INVALID_RESTORE_PAGE) {
// Ensure that we have a valid page index to load synchronously
throw new RuntimeException("Should not call runBindSynchronousPage() without " +
"valid page index");
}
if (!mModelLoaded) {
// Ensure that we don't try and bind a specified page when the pages have not been
// loaded already (we should load everything asynchronously in that case)
throw new RuntimeException("Expecting AllApps and Workspace to be loaded");
}
synchronized (mLock) {
if (mIsLoaderTaskRunning) {
// Ensure that we are never running the background loading at this point since
// we also touch the background collections
throw new RuntimeException("Error! Background loading is already running");
}
}
// XXX: Throw an exception if we are already loading (since we touch the worker thread
// data structures, we can't allow any other thread to touch that data, but because
// this call is synchronous, we can get away with not locking).
// The LauncherModel is static in the LauncherAppState and mHandler may have queued
// operations from the previous activity. We need to ensure that all queued operations
// are executed before any synchronous binding work is done.
mHandler.flush();
// Divide the set of loaded items into those that we are binding synchronously, and
// everything else that is to be bound normally (asynchronously).
bindWorkspace(synchronousBindPage);
// XXX: For now, continue posting the binding of AllApps as there are other issues that
// arise from that.
onlyBindAllApps();
bindDeepShortcuts();
}
private void verifyNotStopped() throws CancellationException {
synchronized (LoaderTask.this) {
if (mStopped) {
throw new CancellationException("Loader stopped");
}
}
}
public void run() {
synchronized (mLock) {
if (mStopped) {
return;
}
mIsLoaderTaskRunning = true;
}
try {
if (DEBUG_LOADERS) Log.d(TAG, "step 1.1: loading workspace");
// Set to false in bindWorkspace()
mIsLoadingAndBindingWorkspace = true;
loadWorkspace();
verifyNotStopped();
if (DEBUG_LOADERS) Log.d(TAG, "step 1.2: bind workspace workspace");
bindWorkspace(mPageToBindFirst);
// Take a break
if (DEBUG_LOADERS) Log.d(TAG, "step 1 completed, wait for idle");
waitForIdle();
verifyNotStopped();
// second step
if (DEBUG_LOADERS) Log.d(TAG, "step 2.1: loading all apps");
loadAllApps();
verifyNotStopped();
if (DEBUG_LOADERS) Log.d(TAG, "step 2.2: Update icon cache");
updateIconCache();
// Take a break
if (DEBUG_LOADERS) Log.d(TAG, "step 2 completed, wait for idle");
waitForIdle();
verifyNotStopped();
// third step
if (DEBUG_LOADERS) Log.d(TAG, "step 3.1: loading deep shortcuts");
loadDeepShortcuts();
verifyNotStopped();
if (DEBUG_LOADERS) Log.d(TAG, "step 3.2: bind deep shortcuts");
bindDeepShortcuts();
// Take a break
if (DEBUG_LOADERS) Log.d(TAG, "step 3 completed, wait for idle");
waitForIdle();
verifyNotStopped();
// fourth step
if (DEBUG_LOADERS) Log.d(TAG, "step 4.1: loading widgets");
refreshAndBindWidgetsAndShortcuts(getCallback(), false /* bindFirst */,
null /* packageUser */);
synchronized (mLock) {
// Everything loaded bind the data.
mModelLoaded = true;
mHasLoaderCompletedOnce = true;
}
} catch (CancellationException e) {
// Loader stopped, ignore
} finally {
// Clear out this reference, otherwise we end up holding it until all of the
// callback runnables are done.
mContext = null;
synchronized (mLock) {
// If we are still the last one to be scheduled, remove ourselves.
if (mLoaderTask == this) {
mLoaderTask = null;
}
mIsLoaderTaskRunning = false;
}
}
}
public void stopLocked() {
synchronized (LoaderTask.this) {
mStopped = true;
this.notify();
}
}
/**
* Gets the callbacks object. If we've been stopped, or if the launcher object
* has somehow been garbage collected, return null instead. Pass in the Callbacks
* object that was around when the deferred message was scheduled, and if there's
* a new Callbacks object around then also return null. This will save us from
* calling onto it with data that will be ignored.
*/
Callbacks tryGetCallbacks(Callbacks oldCallbacks) {
synchronized (mLock) {
if (mStopped) {
return null;
}
if (mCallbacks == null) {
return null;
}
final Callbacks callbacks = mCallbacks.get();
if (callbacks != oldCallbacks) {
return null;
}
if (callbacks == null) {
Log.w(TAG, "no mCallbacks");
return null;
}
return callbacks;
}
}
private void loadWorkspace() {
if (LauncherAppState.PROFILE_STARTUP) {
Trace.beginSection("Loading Workspace");
}
final Context context = mContext;
final ContentResolver contentResolver = context.getContentResolver();
final PackageManagerHelper pmHelper = new PackageManagerHelper(context);
final boolean isSafeMode = pmHelper.isSafeMode();
final LauncherAppsCompat launcherApps = LauncherAppsCompat.getInstance(context);
final DeepShortcutManager shortcutManager = DeepShortcutManager.getInstance(context);
final boolean isSdCardReady = Utilities.isBootCompleted();
final MultiHashMap<UserHandle, String> pendingPackages = new MultiHashMap<>();
boolean clearDb = false;
try {
ImportDataTask.performImportIfPossible(context);
} catch (Exception e) {
// Migration failed. Clear workspace.
clearDb = true;
}
if (!clearDb && GridSizeMigrationTask.ENABLED &&
!GridSizeMigrationTask.migrateGridIfNeeded(mContext)) {
// Migration failed. Clear workspace.
clearDb = true;
}
if (clearDb) {
Log.d(TAG, "loadWorkspace: resetting launcher database");
LauncherSettings.Settings.call(contentResolver,
LauncherSettings.Settings.METHOD_CREATE_EMPTY_DB);
}
Log.d(TAG, "loadWorkspace: loading default favorites");
LauncherSettings.Settings.call(contentResolver,
LauncherSettings.Settings.METHOD_LOAD_DEFAULT_FAVORITES);
synchronized (sBgDataModel) {
sBgDataModel.clear();
final HashMap<String, Integer> installingPkgs = PackageInstallerCompat
.getInstance(mContext).updateAndGetActiveSessionCache();
sBgDataModel.workspaceScreens.addAll(loadWorkspaceScreensDb(mContext));
Map<ShortcutKey, ShortcutInfoCompat> shortcutKeyToPinnedShortcuts = new HashMap<>();
final LoaderCursor c = new LoaderCursor(contentResolver.query(
LauncherSettings.Favorites.CONTENT_URI, null, null, null, null), mApp);
HashMap<ComponentKey, AppWidgetProviderInfo> widgetProvidersMap = null;
try {
final int appWidgetIdIndex = c.getColumnIndexOrThrow(
LauncherSettings.Favorites.APPWIDGET_ID);
final int appWidgetProviderIndex = c.getColumnIndexOrThrow(
LauncherSettings.Favorites.APPWIDGET_PROVIDER);
final int spanXIndex = c.getColumnIndexOrThrow
(LauncherSettings.Favorites.SPANX);
final int spanYIndex = c.getColumnIndexOrThrow(
LauncherSettings.Favorites.SPANY);
final int rankIndex = c.getColumnIndexOrThrow(
LauncherSettings.Favorites.RANK);
final int optionsIndex = c.getColumnIndexOrThrow(
LauncherSettings.Favorites.OPTIONS);
final LongSparseArray<UserHandle> allUsers = c.allUsers;
final LongSparseArray<Boolean> quietMode = new LongSparseArray<>();
final LongSparseArray<Boolean> unlockedUsers = new LongSparseArray<>();
for (UserHandle user : mUserManager.getUserProfiles()) {
long serialNo = mUserManager.getSerialNumberForUser(user);
allUsers.put(serialNo, user);
quietMode.put(serialNo, mUserManager.isQuietModeEnabled(user));
boolean userUnlocked = mUserManager.isUserUnlocked(user);
// We can only query for shortcuts when the user is unlocked.
if (userUnlocked) {
List<ShortcutInfoCompat> pinnedShortcuts =
shortcutManager.queryForPinnedShortcuts(null, user);
if (shortcutManager.wasLastCallSuccess()) {
for (ShortcutInfoCompat shortcut : pinnedShortcuts) {
shortcutKeyToPinnedShortcuts.put(ShortcutKey.fromInfo(shortcut),
shortcut);
}
} else {
// Shortcut manager can fail due to some race condition when the
// lock state changes too frequently. For the purpose of the loading
// shortcuts, consider the user is still locked.
userUnlocked = false;
}
}
unlockedUsers.put(serialNo, userUnlocked);
}
ShortcutInfo info;
LauncherAppWidgetInfo appWidgetInfo;
Intent intent;
String targetPkg;
while (!mStopped && c.moveToNext()) {
try {
if (c.user == null) {
// User has been deleted, remove the item.
c.markDeleted("User has been deleted");
continue;
}
boolean allowMissingTarget = false;
switch (c.itemType) {
case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
case LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT:
intent = c.parseIntent();
if (intent == null) {
c.markDeleted("Invalid or null intent");
continue;
}
int disabledState = quietMode.get(c.serialNumber) ?
ShortcutInfo.FLAG_DISABLED_QUIET_USER : 0;
ComponentName cn = intent.getComponent();
targetPkg = cn == null ? intent.getPackage() : cn.getPackageName();
if (!Process.myUserHandle().equals(c.user)) {
if (c.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) {
c.markDeleted("Legacy shortcuts are only allowed for default user");
continue;
} else if (c.restoreFlag != 0) {
// Don't restore items for other profiles.
c.markDeleted("Restore from managed profile not supported");
continue;
}
}
if (TextUtils.isEmpty(targetPkg) &&
c.itemType != LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) {
c.markDeleted("Only legacy shortcuts can have null package");
continue;
}
// If there is no target package, its an implicit intent
// (legacy shortcut) which is always valid
boolean validTarget = TextUtils.isEmpty(targetPkg) ||
launcherApps.isPackageEnabledForProfile(targetPkg, c.user);
if (cn != null && validTarget) {
// If the apk is present and the shortcut points to a specific
// component.
// If the component is already present
if (launcherApps.isActivityEnabledForProfile(cn, c.user)) {
// no special handling necessary for this item
c.markRestored();
} else {
if (c.hasRestoreFlag(ShortcutInfo.FLAG_AUTOINTALL_ICON)) {
// We allow auto install apps to have their intent
// updated after an install.
intent = pmHelper.getAppLaunchIntent(targetPkg, c.user);
if (intent != null) {
c.restoreFlag = 0;
c.updater().put(
LauncherSettings.Favorites.INTENT,
intent.toUri(0)).commit();
cn = intent.getComponent();
} else {
c.markDeleted("Unable to find a launch target");
continue;
}
} else {
// The app is installed but the component is no
// longer available.
c.markDeleted("Invalid component removed: " + cn);
continue;
}
}
}
// else if cn == null => can't infer much, leave it
// else if !validPkg => could be restored icon or missing sd-card
if (!TextUtils.isEmpty(targetPkg) && !validTarget) {
// Points to a valid app (superset of cn != null) but the apk
// is not available.
if (c.restoreFlag != 0) {
// Package is not yet available but might be
// installed later.
FileLog.d(TAG, "package not yet restored: " + targetPkg);
if (c.hasRestoreFlag(ShortcutInfo.FLAG_RESTORE_STARTED)) {
// Restore has started once.
} else if (installingPkgs.containsKey(targetPkg)) {
// App restore has started. Update the flag
c.restoreFlag |= ShortcutInfo.FLAG_RESTORE_STARTED;
c.updater().commit();
} else {
c.markDeleted("Unrestored app removed: " + targetPkg);
continue;
}
} else if (pmHelper.isAppOnSdcard(targetPkg, c.user)) {
// Package is present but not available.
disabledState |= ShortcutInfo.FLAG_DISABLED_NOT_AVAILABLE;
// Add the icon on the workspace anyway.
allowMissingTarget = true;
} else if (!isSdCardReady) {
// SdCard is not ready yet. Package might get available,
// once it is ready.
Log.d(TAG, "Missing pkg, will check later: " + targetPkg);
pendingPackages.addToList(c.user, targetPkg);
// Add the icon on the workspace anyway.
allowMissingTarget = true;
} else {
// Do not wait for external media load anymore.
c.markDeleted("Invalid package removed: " + targetPkg);
continue;
}
}
if (validTarget) {
// The shortcut points to a valid target (either no target
// or something which is ready to be used)
c.markRestored();
}
boolean useLowResIcon = !c.isOnWorkspaceOrHotseat() &&
c.getInt(rankIndex) >= FolderIcon.NUM_ITEMS_IN_PREVIEW;
if (c.restoreFlag != 0) {
// Already verified above that user is same as default user
info = c.getRestoredItemInfo(intent);
} else if (c.itemType ==
LauncherSettings.Favorites.ITEM_TYPE_APPLICATION) {
info = c.getAppShortcutInfo(
intent, allowMissingTarget, useLowResIcon);
} else if (c.itemType ==
LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT) {
ShortcutKey key = ShortcutKey.fromIntent(intent, c.user);
if (unlockedUsers.get(c.serialNumber)) {
ShortcutInfoCompat pinnedShortcut =
shortcutKeyToPinnedShortcuts.get(key);
if (pinnedShortcut == null) {
// The shortcut is no longer valid.
c.markDeleted("Pinned shortcut not found");
continue;
}
info = new ShortcutInfo(pinnedShortcut, context);
info.iconBitmap = LauncherIcons
.createShortcutIcon(pinnedShortcut, context);
if (pmHelper.isAppSuspended(
pinnedShortcut.getPackage(), info.user)) {
info.isDisabled |= ShortcutInfo.FLAG_DISABLED_SUSPENDED;
}
intent = info.intent;
} else {
// Create a shortcut info in disabled mode for now.
info = c.loadSimpleShortcut();
info.isDisabled |= ShortcutInfo.FLAG_DISABLED_LOCKED_USER;
}
} else { // item type == ITEM_TYPE_SHORTCUT
info = c.loadSimpleShortcut();
// Shortcuts are only available on the primary profile
if (!TextUtils.isEmpty(targetPkg)
&& pmHelper.isAppSuspended(targetPkg, c.user)) {
disabledState |= ShortcutInfo.FLAG_DISABLED_SUSPENDED;
}
// App shortcuts that used to be automatically added to Launcher
// didn't always have the correct intent flags set, so do that
// here
if (intent.getAction() != null &&
intent.getCategories() != null &&
intent.getAction().equals(Intent.ACTION_MAIN) &&
intent.getCategories().contains(Intent.CATEGORY_LAUNCHER)) {
intent.addFlags(
Intent.FLAG_ACTIVITY_NEW_TASK |
Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
}
}
if (info != null) {
c.applyCommonProperties(info);
info.intent = intent;
info.rank = c.getInt(rankIndex);
info.spanX = 1;
info.spanY = 1;
info.isDisabled |= disabledState;
if (isSafeMode && !Utilities.isSystemApp(context, intent)) {
info.isDisabled |= ShortcutInfo.FLAG_DISABLED_SAFEMODE;
}
if (c.restoreFlag != 0 && !TextUtils.isEmpty(targetPkg)) {
Integer progress = installingPkgs.get(targetPkg);
if (progress != null) {
info.setInstallProgress(progress);
} else {
info.status &= ~ShortcutInfo.FLAG_INSTALL_SESSION_ACTIVE;
}
}
c.checkAndAddItem(info, sBgDataModel);
} else {
throw new RuntimeException("Unexpected null ShortcutInfo");
}
break;
case LauncherSettings.Favorites.ITEM_TYPE_FOLDER:
FolderInfo folderInfo = sBgDataModel.findOrMakeFolder(c.id);
c.applyCommonProperties(folderInfo);
// Do not trim the folder label, as is was set by the user.
folderInfo.title = c.getString(c.titleIndex);
folderInfo.spanX = 1;
folderInfo.spanY = 1;
folderInfo.options = c.getInt(optionsIndex);
// no special handling required for restored folders
c.markRestored();
c.checkAndAddItem(folderInfo, sBgDataModel);
break;
case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET:
case LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET:
// Read all Launcher-specific widget details
boolean customWidget = c.itemType ==
LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET;
int appWidgetId = c.getInt(appWidgetIdIndex);
String savedProvider = c.getString(appWidgetProviderIndex);
final ComponentName component =
ComponentName.unflattenFromString(savedProvider);
final boolean isIdValid = !c.hasRestoreFlag(
LauncherAppWidgetInfo.FLAG_ID_NOT_VALID);
final boolean wasProviderReady = !c.hasRestoreFlag(
LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY);
if (widgetProvidersMap == null) {
widgetProvidersMap = AppWidgetManagerCompat
.getInstance(mContext).getAllProvidersMap();
}
final AppWidgetProviderInfo provider = widgetProvidersMap.get(
new ComponentKey(
ComponentName.unflattenFromString(savedProvider),
c.user));
final boolean isProviderReady = isValidProvider(provider);
if (!isSafeMode && !customWidget &&
wasProviderReady && !isProviderReady) {
c.markDeleted(
"Deleting widget that isn't installed anymore: "
+ provider);
} else {
if (isProviderReady) {
appWidgetInfo = new LauncherAppWidgetInfo(appWidgetId,
provider.provider);
// The provider is available. So the widget is either
// available or not available. We do not need to track
// any future restore updates.
int status = c.restoreFlag &
~LauncherAppWidgetInfo.FLAG_RESTORE_STARTED;
if (!wasProviderReady) {
// If provider was not previously ready, update the
// status and UI flag.
// Id would be valid only if the widget restore broadcast was received.
if (isIdValid) {
status |= LauncherAppWidgetInfo.FLAG_UI_NOT_READY;
} else {
status &= ~LauncherAppWidgetInfo
.FLAG_PROVIDER_NOT_READY;
}
}
appWidgetInfo.restoreStatus = status;
} else {
Log.v(TAG, "Widget restore pending id=" + c.id
+ " appWidgetId=" + appWidgetId
+ " status =" + c.restoreFlag);
appWidgetInfo = new LauncherAppWidgetInfo(appWidgetId,
component);
appWidgetInfo.restoreStatus = c.restoreFlag;
Integer installProgress = installingPkgs.get(component.getPackageName());
if (c.hasRestoreFlag(LauncherAppWidgetInfo.FLAG_RESTORE_STARTED)) {
// Restore has started once.
} else if (installProgress != null) {
// App restore has started. Update the flag
appWidgetInfo.restoreStatus |=
LauncherAppWidgetInfo.FLAG_RESTORE_STARTED;
} else if (!isSafeMode) {
c.markDeleted("Unrestored widget removed: " + component);
continue;
}
appWidgetInfo.installProgress =
installProgress == null ? 0 : installProgress;
}
if (appWidgetInfo.hasRestoreFlag(
LauncherAppWidgetInfo.FLAG_DIRECT_CONFIG)) {
appWidgetInfo.bindOptions = c.parseIntent();
}
c.applyCommonProperties(appWidgetInfo);
appWidgetInfo.spanX = c.getInt(spanXIndex);
appWidgetInfo.spanY = c.getInt(spanYIndex);
appWidgetInfo.user = c.user;
if (!c.isOnWorkspaceOrHotseat()) {
c.markDeleted("Widget found where container != " +
"CONTAINER_DESKTOP nor CONTAINER_HOTSEAT - ignoring!");
continue;
}
if (!customWidget) {
String providerName =
appWidgetInfo.providerName.flattenToString();
if (!providerName.equals(savedProvider) ||
(appWidgetInfo.restoreStatus != c.restoreFlag)) {
c.updater()
.put(LauncherSettings.Favorites.APPWIDGET_PROVIDER,
providerName)
.put(LauncherSettings.Favorites.RESTORED,
appWidgetInfo.restoreStatus)
.commit();
}
}
c.checkAndAddItem(appWidgetInfo, sBgDataModel);
}
break;
}
} catch (Exception e) {
Log.e(TAG, "Desktop items loading interrupted", e);
}
}
} finally {
Utilities.closeSilently(c);
}
// Break early if we've stopped loading
if (mStopped) {
sBgDataModel.clear();
return;
}
// Remove dead items
if (c.commitDeleted()) {
// Remove any empty folder
ArrayList<Long> deletedFolderIds = (ArrayList<Long>) LauncherSettings.Settings
.call(contentResolver,
LauncherSettings.Settings.METHOD_DELETE_EMPTY_FOLDERS)
.getSerializable(LauncherSettings.Settings.EXTRA_VALUE);
for (long folderId : deletedFolderIds) {
sBgDataModel.workspaceItems.remove(sBgDataModel.folders.get(folderId));
sBgDataModel.folders.remove(folderId);
sBgDataModel.itemsIdMap.remove(folderId);
}
// Remove any ghost widgets
LauncherSettings.Settings.call(contentResolver,
LauncherSettings.Settings.METHOD_REMOVE_GHOST_WIDGETS);
}
// Unpin shortcuts that don't exist on the workspace.
HashSet<ShortcutKey> pendingShortcuts =
InstallShortcutReceiver.getPendingShortcuts(context);
for (ShortcutKey key : shortcutKeyToPinnedShortcuts.keySet()) {
MutableInt numTimesPinned = sBgDataModel.pinnedShortcutCounts.get(key);
if ((numTimesPinned == null || numTimesPinned.value == 0)
&& !pendingShortcuts.contains(key)) {
// Shortcut is pinned but doesn't exist on the workspace; unpin it.
shortcutManager.unpinShortcut(key);
}
}
// Sort all the folder items and make sure the first 3 items are high resolution.
for (FolderInfo folder : sBgDataModel.folders) {
Collections.sort(folder.contents, Folder.ITEM_POS_COMPARATOR);
int pos = 0;
for (ShortcutInfo info : folder.contents) {
if (info.usingLowResIcon &&
info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION) {
mIconCache.getTitleAndIcon(info, false);
}
pos ++;
if (pos >= FolderIcon.NUM_ITEMS_IN_PREVIEW) {
break;
}
}
}
c.commitRestoredItems();
if (!isSdCardReady && !pendingPackages.isEmpty()) {
context.registerReceiver(
new SdCardAvailableReceiver(
LauncherModel.this, mContext, pendingPackages),
new IntentFilter(Intent.ACTION_BOOT_COMPLETED),
null,
sWorker);
}
// Remove any empty screens
ArrayList<Long> unusedScreens = new ArrayList<>(sBgDataModel.workspaceScreens);
for (ItemInfo item: sBgDataModel.itemsIdMap) {
long screenId = item.screenId;
if (item.container == LauncherSettings.Favorites.CONTAINER_DESKTOP &&
unusedScreens.contains(screenId)) {
unusedScreens.remove(screenId);
}
}
// If there are any empty screens remove them, and update.
if (unusedScreens.size() != 0) {
sBgDataModel.workspaceScreens.removeAll(unusedScreens);
updateWorkspaceScreenOrder(context, sBgDataModel.workspaceScreens);
}
}
if (LauncherAppState.PROFILE_STARTUP) {
Trace.endSection();
}
}
/** Filters the set of items who are directly or indirectly (via another container) on the
* specified screen. */
private void filterCurrentWorkspaceItems(long currentScreenId,
ArrayList<ItemInfo> allWorkspaceItems,
ArrayList<ItemInfo> currentScreenItems,
ArrayList<ItemInfo> otherScreenItems) {
// Purge any null ItemInfos
Iterator<ItemInfo> iter = allWorkspaceItems.iterator();
while (iter.hasNext()) {
ItemInfo i = iter.next();
if (i == null) {
iter.remove();
}
}
// Order the set of items by their containers first, this allows use to walk through the
// list sequentially, build up a list of containers that are in the specified screen,
// as well as all items in those containers.
Set<Long> itemsOnScreen = new HashSet<Long>();
Collections.sort(allWorkspaceItems, new Comparator<ItemInfo>() {
@Override
public int compare(ItemInfo lhs, ItemInfo rhs) {
return Utilities.longCompare(lhs.container, rhs.container);
}
});
for (ItemInfo info : allWorkspaceItems) {
if (info.container == LauncherSettings.Favorites.CONTAINER_DESKTOP) {
if (info.screenId == currentScreenId) {
currentScreenItems.add(info);
itemsOnScreen.add(info.id);
} else {
otherScreenItems.add(info);
}
} else if (info.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) {
currentScreenItems.add(info);
itemsOnScreen.add(info.id);
} else {
if (itemsOnScreen.contains(info.container)) {
currentScreenItems.add(info);
itemsOnScreen.add(info.id);
} else {
otherScreenItems.add(info);
}
}
}
}
/** Filters the set of widgets which are on the specified screen. */
private void filterCurrentAppWidgets(long currentScreenId,
ArrayList<LauncherAppWidgetInfo> appWidgets,
ArrayList<LauncherAppWidgetInfo> currentScreenWidgets,
ArrayList<LauncherAppWidgetInfo> otherScreenWidgets) {
for (LauncherAppWidgetInfo widget : appWidgets) {
if (widget == null) continue;
if (widget.container == LauncherSettings.Favorites.CONTAINER_DESKTOP &&
widget.screenId == currentScreenId) {
currentScreenWidgets.add(widget);
} else {
otherScreenWidgets.add(widget);
}
}
}
/** Sorts the set of items by hotseat, workspace (spatially from top to bottom, left to
* right) */
private void sortWorkspaceItemsSpatially(ArrayList<ItemInfo> workspaceItems) {
final InvariantDeviceProfile profile = mApp.getInvariantDeviceProfile();
final int screenCols = profile.numColumns;
final int screenCellCount = profile.numColumns * profile.numRows;
Collections.sort(workspaceItems, new Comparator<ItemInfo>() {
@Override
public int compare(ItemInfo lhs, ItemInfo rhs) {
if (lhs.container == rhs.container) {
// Within containers, order by their spatial position in that container
switch ((int) lhs.container) {
case LauncherSettings.Favorites.CONTAINER_DESKTOP: {
long lr = (lhs.screenId * screenCellCount +
lhs.cellY * screenCols + lhs.cellX);
long rr = (rhs.screenId * screenCellCount +
rhs.cellY * screenCols + rhs.cellX);
return Utilities.longCompare(lr, rr);
}
case LauncherSettings.Favorites.CONTAINER_HOTSEAT: {
// We currently use the screen id as the rank
return Utilities.longCompare(lhs.screenId, rhs.screenId);
}
default:
if (ProviderConfig.IS_DOGFOOD_BUILD) {
throw new RuntimeException("Unexpected container type when " +
"sorting workspace items.");
}
return 0;
}
} else {
// Between containers, order by hotseat, desktop
return Utilities.longCompare(lhs.container, rhs.container);
}
}
});
}
private void bindWorkspaceScreens(final Callbacks oldCallbacks,
final ArrayList<Long> orderedScreens) {
final Runnable r = new Runnable() {
@Override
public void run() {
Callbacks callbacks = tryGetCallbacks(oldCallbacks);
if (callbacks != null) {
callbacks.bindScreens(orderedScreens);
}
}
};
runOnMainThread(r);
}
private void bindWorkspaceItems(final Callbacks oldCallbacks,
final ArrayList<ItemInfo> workspaceItems,
final ArrayList<LauncherAppWidgetInfo> appWidgets,
final Executor executor) {
// Bind the workspace items
int N = workspaceItems.size();
for (int i = 0; i < N; i += ITEMS_CHUNK) {
final int start = i;
final int chunkSize = (i+ITEMS_CHUNK <= N) ? ITEMS_CHUNK : (N-i);
final Runnable r = new Runnable() {
@Override
public void run() {
Callbacks callbacks = tryGetCallbacks(oldCallbacks);
if (callbacks != null) {
callbacks.bindItems(workspaceItems, start, start+chunkSize,
false);
}
}
};
executor.execute(r);
}
// Bind the widgets, one at a time
N = appWidgets.size();
for (int i = 0; i < N; i++) {
final LauncherAppWidgetInfo widget = appWidgets.get(i);
final Runnable r = new Runnable() {
public void run() {
Callbacks callbacks = tryGetCallbacks(oldCallbacks);
if (callbacks != null) {
callbacks.bindAppWidget(widget);
}
}
};
executor.execute(r);
}
}
/**
* Binds all loaded data to actual views on the main thread.
*/
private void bindWorkspace(int synchronizeBindPage) {
final long t = SystemClock.uptimeMillis();
Runnable r;
// Don't use these two variables in any of the callback runnables.
// Otherwise we hold a reference to them.
final Callbacks oldCallbacks = mCallbacks.get();
if (oldCallbacks == null) {
// This launcher has exited and nobody bothered to tell us. Just bail.
Log.w(TAG, "LoaderTask running with no launcher");
return;
}
// Save a copy of all the bg-thread collections
ArrayList<ItemInfo> workspaceItems = new ArrayList<>();
ArrayList<LauncherAppWidgetInfo> appWidgets = new ArrayList<>();
ArrayList<Long> orderedScreenIds = new ArrayList<>();
synchronized (sBgDataModel) {
workspaceItems.addAll(sBgDataModel.workspaceItems);
appWidgets.addAll(sBgDataModel.appWidgets);
orderedScreenIds.addAll(sBgDataModel.workspaceScreens);
}
final int currentScreen;
{
int currScreen = synchronizeBindPage != PagedView.INVALID_RESTORE_PAGE
? synchronizeBindPage : oldCallbacks.getCurrentWorkspaceScreen();
if (currScreen >= orderedScreenIds.size()) {
// There may be no workspace screens (just hotseat items and an empty page).
currScreen = PagedView.INVALID_RESTORE_PAGE;
}
currentScreen = currScreen;
}
final boolean validFirstPage = currentScreen >= 0;
final long currentScreenId =
validFirstPage ? orderedScreenIds.get(currentScreen) : INVALID_SCREEN_ID;
// Separate the items that are on the current screen, and all the other remaining items
ArrayList<ItemInfo> currentWorkspaceItems = new ArrayList<>();
ArrayList<ItemInfo> otherWorkspaceItems = new ArrayList<>();
ArrayList<LauncherAppWidgetInfo> currentAppWidgets = new ArrayList<>();
ArrayList<LauncherAppWidgetInfo> otherAppWidgets = new ArrayList<>();
filterCurrentWorkspaceItems(currentScreenId, workspaceItems, currentWorkspaceItems,
otherWorkspaceItems);
filterCurrentAppWidgets(currentScreenId, appWidgets, currentAppWidgets,
otherAppWidgets);
sortWorkspaceItemsSpatially(currentWorkspaceItems);
sortWorkspaceItemsSpatially(otherWorkspaceItems);
// Tell the workspace that we're about to start binding items
r = new Runnable() {
public void run() {
Callbacks callbacks = tryGetCallbacks(oldCallbacks);
if (callbacks != null) {
callbacks.clearPendingBinds();
callbacks.startBinding();
}
}
};
runOnMainThread(r);
bindWorkspaceScreens(oldCallbacks, orderedScreenIds);
Executor mainExecutor = new DeferredMainThreadExecutor();
// Load items on the current page.
bindWorkspaceItems(oldCallbacks, currentWorkspaceItems, currentAppWidgets, mainExecutor);
// In case of validFirstPage, only bind the first screen, and defer binding the
// remaining screens after first onDraw (and an optional the fade animation whichever
// happens later).
// This ensures that the first screen is immediately visible (eg. during rotation)
// In case of !validFirstPage, bind all pages one after other.
final Executor deferredExecutor =
validFirstPage ? new ViewOnDrawExecutor(mHandler) : mainExecutor;
mainExecutor.execute(new Runnable() {
@Override
public void run() {
Callbacks callbacks = tryGetCallbacks(oldCallbacks);
if (callbacks != null) {
callbacks.finishFirstPageBind(
validFirstPage ? (ViewOnDrawExecutor) deferredExecutor : null);
}
}
});
bindWorkspaceItems(oldCallbacks, otherWorkspaceItems, otherAppWidgets, deferredExecutor);
// Tell the workspace that we're done binding items
r = new Runnable() {
public void run() {
Callbacks callbacks = tryGetCallbacks(oldCallbacks);
if (callbacks != null) {
callbacks.finishBindingItems();
}
mIsLoadingAndBindingWorkspace = false;
// Run all the bind complete runnables after workspace is bound.
if (!mBindCompleteRunnables.isEmpty()) {
synchronized (mBindCompleteRunnables) {
for (final Runnable r : mBindCompleteRunnables) {
runOnWorkerThread(r);
}
mBindCompleteRunnables.clear();
}
}
// If we're profiling, ensure this is the last thing in the queue.
if (DEBUG_LOADERS) {
Log.d(TAG, "bound workspace in "
+ (SystemClock.uptimeMillis()-t) + "ms");
}
}
};
deferredExecutor.execute(r);
if (validFirstPage) {
r = new Runnable() {
public void run() {
Callbacks callbacks = tryGetCallbacks(oldCallbacks);
if (callbacks != null) {
// We are loading synchronously, which means, some of the pages will be
// bound after first draw. Inform the callbacks that page binding is
// not complete, and schedule the remaining pages.
if (currentScreen != PagedView.INVALID_RESTORE_PAGE) {
callbacks.onPageBoundSynchronously(currentScreen);
}
callbacks.executeOnNextDraw((ViewOnDrawExecutor) deferredExecutor);
}
}
};
runOnMainThread(r);
}
}
private void updateIconCache() {
// Ignore packages which have a promise icon.
HashSet<String> packagesToIgnore = new HashSet<>();
synchronized (sBgDataModel) {
for (ItemInfo info : sBgDataModel.itemsIdMap) {
if (info instanceof ShortcutInfo) {
ShortcutInfo si = (ShortcutInfo) info;
if (si.isPromise() && si.getTargetComponent() != null) {
packagesToIgnore.add(si.getTargetComponent().getPackageName());
}
} else if (info instanceof LauncherAppWidgetInfo) {
LauncherAppWidgetInfo lawi = (LauncherAppWidgetInfo) info;
if (lawi.hasRestoreFlag(LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY)) {
packagesToIgnore.add(lawi.providerName.getPackageName());
}
}
}
}
mIconCache.updateDbIcons(packagesToIgnore);
}
private void onlyBindAllApps() {
final Callbacks oldCallbacks = mCallbacks.get();
if (oldCallbacks == null) {
// This launcher has exited and nobody bothered to tell us. Just bail.
Log.w(TAG, "LoaderTask running with no launcher (onlyBindAllApps)");
return;
}
// shallow copy
@SuppressWarnings("unchecked")
final ArrayList<AppInfo> list
= (ArrayList<AppInfo>) mBgAllAppsList.data.clone();
Runnable r = new Runnable() {
public void run() {
final long t = SystemClock.uptimeMillis();
final Callbacks callbacks = tryGetCallbacks(oldCallbacks);
if (callbacks != null) {
callbacks.bindAllApplications(list);
}
if (DEBUG_LOADERS) {
Log.d(TAG, "bound all " + list.size() + " apps from cache in "
+ (SystemClock.uptimeMillis() - t) + "ms");
}
}
};
runOnMainThread(r);
}
private void scheduleManagedHeuristicRunnable(final ManagedProfileHeuristic heuristic,
final UserHandle user, final List<LauncherActivityInfo> apps) {
if (heuristic != null) {
// Assume the app lists now is updated.
mIsManagedHeuristicAppsUpdated = false;
final Runnable managedHeuristicRunnable = new Runnable() {
@Override
public void run() {
if (mIsManagedHeuristicAppsUpdated) {
// If app list is updated, we need to reschedule it otherwise old app
// list will override everything in processUserApps().
sWorker.post(new Runnable() {
public void run() {
final List<LauncherActivityInfo> updatedApps =
mLauncherApps.getActivityList(null, user);
scheduleManagedHeuristicRunnable(heuristic, user,
updatedApps);
}
});
} else {
heuristic.processUserApps(apps);
}
}
};
runOnMainThread(new Runnable() {
@Override
public void run() {
// Check isLoadingWorkspace on the UI thread, as it is updated on the UI
// thread.
if (mIsLoadingAndBindingWorkspace) {
synchronized (mBindCompleteRunnables) {
mBindCompleteRunnables.add(managedHeuristicRunnable);
}
} else {
runOnWorkerThread(managedHeuristicRunnable);
}
}
});
}
}
private void loadAllApps() {
final long loadTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0;
final Callbacks oldCallbacks = mCallbacks.get();
if (oldCallbacks == null) {
// This launcher has exited and nobody bothered to tell us. Just bail.
Log.w(TAG, "LoaderTask running with no launcher (loadAllApps)");
return;
}
final List<UserHandle> profiles = mUserManager.getUserProfiles();
// Clear the list of apps
mBgAllAppsList.clear();
for (UserHandle user : profiles) {
// Query for the set of apps
final long qiaTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0;
final List<LauncherActivityInfo> apps = mLauncherApps.getActivityList(null, user);
if (DEBUG_LOADERS) {
Log.d(TAG, "getActivityList took "
+ (SystemClock.uptimeMillis()-qiaTime) + "ms for user " + user);
Log.d(TAG, "getActivityList got " + apps.size() + " apps for user " + user);
}
// Fail if we don't have any apps
// TODO: Fix this. Only fail for the current user.
if (apps == null || apps.isEmpty()) {
return;
}
boolean quietMode = mUserManager.isQuietModeEnabled(user);
// Create the ApplicationInfos
for (int i = 0; i < apps.size(); i++) {
LauncherActivityInfo app = apps.get(i);
// This builds the icon bitmaps.
mBgAllAppsList.add(new AppInfo(app, user, quietMode), app);
}
final ManagedProfileHeuristic heuristic = ManagedProfileHeuristic.get(mContext, user);
if (heuristic != null) {
scheduleManagedHeuristicRunnable(heuristic, user, apps);
}
}
// Huh? Shouldn't this be inside the Runnable below?
final ArrayList<AppInfo> added = mBgAllAppsList.added;
mBgAllAppsList.added = new ArrayList<AppInfo>();
// Post callback on main thread
mHandler.post(new Runnable() {
public void run() {
final long bindTime = SystemClock.uptimeMillis();
final Callbacks callbacks = tryGetCallbacks(oldCallbacks);
if (callbacks != null) {
callbacks.bindAllApplications(added);
if (DEBUG_LOADERS) {
Log.d(TAG, "bound " + added.size() + " apps in "
+ (SystemClock.uptimeMillis() - bindTime) + "ms");
}
} else {
Log.i(TAG, "not binding apps: no Launcher activity");
}
}
});
// Cleanup any data stored for a deleted user.
ManagedProfileHeuristic.processAllUsers(profiles, mContext);
if (DEBUG_LOADERS) {
Log.d(TAG, "Icons processed in "
+ (SystemClock.uptimeMillis() - loadTime) + "ms");
}
}
private void loadDeepShortcuts() {
sBgDataModel.deepShortcutMap.clear();
DeepShortcutManager shortcutManager = DeepShortcutManager.getInstance(mContext);
mHasShortcutHostPermission = shortcutManager.hasHostPermission();
if (mHasShortcutHostPermission) {
for (UserHandle user : mUserManager.getUserProfiles()) {
if (mUserManager.isUserUnlocked(user)) {
List<ShortcutInfoCompat> shortcuts =
shortcutManager.queryForAllShortcuts(user);
sBgDataModel.updateDeepShortcutMap(null, user, shortcuts);
}
}
}
}
}
public void bindDeepShortcuts() {
final MultiHashMap<ComponentKey, String> shortcutMapCopy =
sBgDataModel.deepShortcutMap.clone();
Runnable r = new Runnable() {
@Override
public void run() {
Callbacks callbacks = getCallback();
if (callbacks != null) {
callbacks.bindDeepShortcutMap(shortcutMapCopy);
}
}
};
runOnMainThread(r);
}
/**
* Refreshes the cached shortcuts if the shortcut permission has changed.
* Current implementation simply reloads the workspace, but it can be optimized to
* use partial updates similar to {@link UserManagerCompat}
*/
public void refreshShortcutsIfRequired() {
if (Utilities.ATLEAST_NOUGAT_MR1) {
sWorker.removeCallbacks(mShortcutPermissionCheckRunnable);
sWorker.post(mShortcutPermissionCheckRunnable);
}
}
/**
* Called when the icons for packages have been updated in the icon cache.
*/
public void onPackageIconsUpdated(HashSet<String> updatedPackages, UserHandle user) {
// If any package icon has changed (app was updated while launcher was dead),
// update the corresponding shortcuts.
enqueueModelUpdateTask(new CacheDataUpdatedTask(
CacheDataUpdatedTask.OP_CACHE_UPDATE, user, updatedPackages));
}
void enqueueModelUpdateTask(BaseModelUpdateTask task) {
if (!mModelLoaded && mLoaderTask == null) {
if (DEBUG_LOADERS) {
Log.d(TAG, "enqueueModelUpdateTask Ignoring task since loader is pending=" + task);
}
return;
}
task.init(this);
runOnWorkerThread(task);
}
/**
* A task to be executed on the current callbacks on the UI thread.
* If there is no current callbacks, the task is ignored.
*/
public interface CallbackTask {
void execute(Callbacks callbacks);
}
/**
* A runnable which changes/updates the data model of the launcher based on certain events.
*/
public static abstract class BaseModelUpdateTask implements Runnable {
private LauncherModel mModel;
private DeferredHandler mUiHandler;
/* package private */
void init(LauncherModel model) {
mModel = model;
mUiHandler = mModel.mHandler;
}
@Override
public void run() {
if (!mModel.mHasLoaderCompletedOnce) {
// Loader has not yet run.
return;
}
execute(mModel.mApp, sBgDataModel, mModel.mBgAllAppsList);
}
/**
* Execute the actual task. Called on the worker thread.
*/
public abstract void execute(
LauncherAppState app, BgDataModel dataModel, AllAppsList apps);
/**
* Schedules a {@param task} to be executed on the current callbacks.
*/
public final void scheduleCallbackTask(final CallbackTask task) {
final Callbacks callbacks = mModel.getCallback();
mUiHandler.post(new Runnable() {
public void run() {
Callbacks cb = mModel.getCallback();
if (callbacks == cb && cb != null) {
task.execute(callbacks);
}
}
});
}
public ModelWriter getModelWriter() {
// Updates from model task, do not deal with icon position in hotseat.
return mModel.getWriter(false /* hasVerticalHotseat */);
}
}
public void updateAndBindShortcutInfo(final ShortcutInfo si, final ShortcutInfoCompat info) {
updateAndBindShortcutInfo(new Provider<ShortcutInfo>() {
@Override
public ShortcutInfo get() {
si.updateFromDeepShortcutInfo(info, mApp.getContext());
si.iconBitmap = LauncherIcons.createShortcutIcon(info, mApp.getContext());
return si;
}
});
}
/**
* Utility method to update a shortcut on the background thread.
*/
public void updateAndBindShortcutInfo(final Provider<ShortcutInfo> shortcutProvider) {
enqueueModelUpdateTask(new ExtendedModelTask() {
@Override
public void execute(LauncherAppState app, BgDataModel dataModel, AllAppsList apps) {
ShortcutInfo info = shortcutProvider.get();
ArrayList<ShortcutInfo> update = new ArrayList<>();
update.add(info);
bindUpdatedShortcuts(update, info.user);
}
});
}
private void bindWidgetsModel(final Callbacks callbacks) {
final MultiHashMap<PackageItemInfo, WidgetItem> widgets
= mBgWidgetsModel.getWidgetsMap().clone();
mHandler.post(new Runnable() {
@Override
public void run() {
Callbacks cb = getCallback();
if (callbacks == cb && cb != null) {
callbacks.bindAllWidgets(widgets);
}
}
});
}
public void refreshAndBindWidgetsAndShortcuts(final Callbacks callbacks,
final boolean bindFirst, @Nullable final PackageUserKey packageUser) {
runOnWorkerThread(new Runnable() {
@Override
public void run() {
if (bindFirst && !mBgWidgetsModel.isEmpty()) {
bindWidgetsModel(callbacks);
}
ArrayList<WidgetItem> widgets = mBgWidgetsModel.update(
mApp.getContext(), packageUser);
bindWidgetsModel(callbacks);
// update the Widget entries inside DB on the worker thread.
mApp.getWidgetCache().removeObsoletePreviews(widgets, packageUser);
}
});
}
static boolean isValidProvider(AppWidgetProviderInfo provider) {
return (provider != null) && (provider.provider != null)
&& (provider.provider.getPackageName() != null);
}
public void dumpState(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) {
if (args.length > 0 && TextUtils.equals(args[0], "--all")) {
writer.println(prefix + "All apps list: size=" + mBgAllAppsList.data.size());
for (AppInfo info : mBgAllAppsList.data) {
writer.println(prefix + " title=\"" + info.title + "\" iconBitmap=" + info.iconBitmap
+ " componentName=" + info.componentName.getPackageName());
}
}
sBgDataModel.dump(prefix, fd, writer, args);
}
public Callbacks getCallback() {
return mCallbacks != null ? mCallbacks.get() : null;
}
/**
* @return {@link FolderInfo} if its already loaded.
*/
public FolderInfo findFolderById(Long folderId) {
synchronized (sBgDataModel) {
return sBgDataModel.folders.get(folderId);
}
}
@Thunk class DeferredMainThreadExecutor implements Executor {
@Override
public void execute(Runnable command) {
runOnMainThread(command);
}
}
/**
* @return the looper for the worker thread which can be used to start background tasks.
*/
public static Looper getWorkerLooper() {
return sWorkerThread.getLooper();
}
}