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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.launcher2;
import android.app.SearchManager;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProviderInfo;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.ContentProviderClient;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.content.Intent.ShortcutIconResource;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.res.Resources;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Environment;
import android.os.Handler;
import android.os.HandlerThread;
import android.os.Parcelable;
import android.os.Process;
import android.os.RemoteException;
import android.os.SystemClock;
import android.util.Log;
import com.android.launcher.R;
import com.android.launcher2.InstallWidgetReceiver.WidgetMimeTypeHandlerData;
import java.lang.ref.WeakReference;
import java.net.URISyntaxException;
import java.text.Collator;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
/**
* 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 {
static final boolean DEBUG_LOADERS = false;
static final String TAG = "Launcher.Model";
private static final int ITEMS_CHUNK = 6; // batch size for the workspace icons
private final boolean mAppsCanBeOnExternalStorage;
private int mBatchSize; // 0 is all apps at once
private int mAllAppsLoadDelay; // milliseconds between batches
private final LauncherApplication mApp;
private final Object mLock = new Object();
private DeferredHandler mHandler = new DeferredHandler();
private LoaderTask mLoaderTask;
private static final HandlerThread sWorkerThread = new HandlerThread("launcher-loader");
static {
sWorkerThread.start();
}
private static final Handler sWorker = new Handler(sWorkerThread.getLooper());
// 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. These are only ever touched from the loader thread.
private boolean mWorkspaceLoaded;
private boolean mAllAppsLoaded;
private WeakReference<Callbacks> mCallbacks;
// < only access in worker thread >
private AllAppsList mAllAppsList;
// sItemsIdMap maps *all* the ItemInfos (shortcuts, folders, and widgets) created by
// LauncherModel to their ids
static final HashMap<Long, ItemInfo> sItemsIdMap = new HashMap<Long, ItemInfo>();
// sItems is passed to bindItems, which expects a list of all folders and shortcuts created by
// LauncherModel that are directly on the home screen (however, no widgets or shortcuts
// within folders).
static final ArrayList<ItemInfo> sWorkspaceItems = new ArrayList<ItemInfo>();
// sAppWidgets is all LauncherAppWidgetInfo created by LauncherModel. Passed to bindAppWidget()
static final ArrayList<LauncherAppWidgetInfo> sAppWidgets =
new ArrayList<LauncherAppWidgetInfo>();
// sFolders is all FolderInfos created by LauncherModel. Passed to bindFolders()
static final HashMap<Long, FolderInfo> sFolders = new HashMap<Long, FolderInfo>();
// </ only access in worker thread >
private IconCache mIconCache;
private Bitmap mDefaultIcon;
private static int mCellCountX;
private static int mCellCountY;
public interface Callbacks {
public boolean setLoadOnResume();
public int getCurrentWorkspaceScreen();
public void startBinding();
public void bindItems(ArrayList<ItemInfo> shortcuts, int start, int end);
public void bindFolders(HashMap<Long,FolderInfo> folders);
public void finishBindingItems();
public void bindAppWidget(LauncherAppWidgetInfo info);
public void bindAllApplications(ArrayList<ApplicationInfo> apps);
public void bindAppsAdded(ArrayList<ApplicationInfo> apps);
public void bindAppsUpdated(ArrayList<ApplicationInfo> apps);
public void bindAppsRemoved(ArrayList<ApplicationInfo> apps, boolean permanent);
public void bindPackagesUpdated();
public boolean isAllAppsVisible();
public void bindSearchablesChanged();
}
LauncherModel(LauncherApplication app, IconCache iconCache) {
mAppsCanBeOnExternalStorage = !Environment.isExternalStorageEmulated();
mApp = app;
mAllAppsList = new AllAppsList(iconCache);
mIconCache = iconCache;
mDefaultIcon = Utilities.createIconBitmap(
mIconCache.getFullResDefaultActivityIcon(), app);
mAllAppsLoadDelay = app.getResources().getInteger(R.integer.config_allAppsBatchLoadDelay);
mBatchSize = app.getResources().getInteger(R.integer.config_allAppsBatchSize);
}
public Bitmap getFallbackIcon() {
return Bitmap.createBitmap(mDefaultIcon);
}
public static void unbindWorkspaceItems() {
for (ItemInfo item: sWorkspaceItems) {
item.unbind();
}
}
/**
* Adds an item to the DB if it was not created previously, or move it to a new
* <container, screen, cellX, cellY>
*/
static void addOrMoveItemInDatabase(Context context, ItemInfo item, long container,
int screen, int cellX, int cellY) {
if (item.container == ItemInfo.NO_ID) {
// From all apps
addItemToDatabase(context, item, container, screen, cellX, cellY, false);
} else {
// From somewhere else
moveItemInDatabase(context, item, container, screen, cellX, cellY);
}
}
/**
* Move an item in the DB to a new <container, screen, cellX, cellY>
*/
static void moveItemInDatabase(Context context, final ItemInfo item, final long container,
final int screen, final int cellX, final int cellY) {
item.container = container;
item.cellX = cellX;
item.cellY = cellY;
// We store hotseat items in canonical form which is this orientation invariant position
// in the hotseat
if (context instanceof Launcher && screen < 0 &&
container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) {
item.screen = ((Launcher) context).getHotseat().getOrderInHotseat(cellX, cellY);
} else {
item.screen = screen;
}
final Uri uri = LauncherSettings.Favorites.getContentUri(item.id, false);
final ContentValues values = new ContentValues();
final ContentResolver cr = context.getContentResolver();
values.put(LauncherSettings.Favorites.CONTAINER, item.container);
values.put(LauncherSettings.Favorites.CELLX, item.cellX);
values.put(LauncherSettings.Favorites.CELLY, item.cellY);
values.put(LauncherSettings.Favorites.SCREEN, item.screen);
sWorker.post(new Runnable() {
public void run() {
cr.update(uri, values, null, null);
ItemInfo modelItem = sItemsIdMap.get(item.id);
if (item != modelItem) {
// 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
throw new RuntimeException("Error: ItemInfo passed to moveItemInDatabase " +
"doesn't match original");
}
// Items are added/removed from the corresponding FolderInfo elsewhere, such
// as in Workspace.onDrop. Here, we just add/remove them from the list of items
// that are on the desktop, as appropriate
if (modelItem.container == LauncherSettings.Favorites.CONTAINER_DESKTOP ||
modelItem.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) {
if (!sWorkspaceItems.contains(modelItem)) {
sWorkspaceItems.add(modelItem);
}
} else {
sWorkspaceItems.remove(modelItem);
}
}
});
}
/**
* Resize an item in the DB to a new <spanX, spanY, cellX, cellY>
*/
static void resizeItemInDatabase(Context context, final ItemInfo item, final int cellX,
final int cellY, final int spanX, final int spanY) {
item.spanX = spanX;
item.spanY = spanY;
item.cellX = cellX;
item.cellY = cellY;
final Uri uri = LauncherSettings.Favorites.getContentUri(item.id, false);
final ContentValues values = new ContentValues();
final ContentResolver cr = context.getContentResolver();
values.put(LauncherSettings.Favorites.CONTAINER, item.container);
values.put(LauncherSettings.Favorites.SPANX, spanX);
values.put(LauncherSettings.Favorites.SPANY, spanY);
values.put(LauncherSettings.Favorites.CELLX, cellX);
values.put(LauncherSettings.Favorites.CELLY, cellY);
sWorker.post(new Runnable() {
public void run() {
cr.update(uri, values, null, null);
ItemInfo modelItem = sItemsIdMap.get(item.id);
if (item != modelItem) {
// 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
throw new RuntimeException("Error: ItemInfo passed to moveItemInDatabase " +
"doesn't match original");
}
}
});
}
/**
* Returns true if the shortcuts already exists in the database.
* we identify a shortcut by its title and intent.
*/
static boolean shortcutExists(Context context, String title, Intent intent) {
final ContentResolver cr = context.getContentResolver();
Cursor c = cr.query(LauncherSettings.Favorites.CONTENT_URI,
new String[] { "title", "intent" }, "title=? and intent=?",
new String[] { title, intent.toUri(0) }, null);
boolean result = false;
try {
result = c.moveToFirst();
} finally {
c.close();
}
return result;
}
/**
* Returns an ItemInfo array containing all the items in the LauncherModel.
* The ItemInfo.id is not set through this function.
*/
static ArrayList<ItemInfo> getItemsInLocalCoordinates(Context context) {
ArrayList<ItemInfo> items = new ArrayList<ItemInfo>();
final ContentResolver cr = context.getContentResolver();
Cursor c = cr.query(LauncherSettings.Favorites.CONTENT_URI, new String[] {
LauncherSettings.Favorites.ITEM_TYPE, LauncherSettings.Favorites.CONTAINER,
LauncherSettings.Favorites.SCREEN, LauncherSettings.Favorites.CELLX, LauncherSettings.Favorites.CELLY,
LauncherSettings.Favorites.SPANX, LauncherSettings.Favorites.SPANY }, null, null, null);
final int itemTypeIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.ITEM_TYPE);
final int containerIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CONTAINER);
final int screenIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SCREEN);
final int cellXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLX);
final int cellYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLY);
final int spanXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SPANX);
final int spanYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SPANY);
try {
while (c.moveToNext()) {
ItemInfo item = new ItemInfo();
item.cellX = c.getInt(cellXIndex);
item.cellY = c.getInt(cellYIndex);
item.spanX = c.getInt(spanXIndex);
item.spanY = c.getInt(spanYIndex);
item.container = c.getInt(containerIndex);
item.itemType = c.getInt(itemTypeIndex);
item.screen = c.getInt(screenIndex);
items.add(item);
}
} catch (Exception e) {
items.clear();
} finally {
c.close();
}
return items;
}
/**
* Find a folder in the db, creating the FolderInfo if necessary, and adding it to folderList.
*/
FolderInfo getFolderById(Context context, HashMap<Long,FolderInfo> folderList, long id) {
final ContentResolver cr = context.getContentResolver();
Cursor c = cr.query(LauncherSettings.Favorites.CONTENT_URI, null,
"_id=? and (itemType=? or itemType=?)",
new String[] { String.valueOf(id),
String.valueOf(LauncherSettings.Favorites.ITEM_TYPE_FOLDER)}, null);
try {
if (c.moveToFirst()) {
final int itemTypeIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.ITEM_TYPE);
final int titleIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.TITLE);
final int containerIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CONTAINER);
final int screenIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SCREEN);
final int cellXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLX);
final int cellYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLY);
FolderInfo folderInfo = null;
switch (c.getInt(itemTypeIndex)) {
case LauncherSettings.Favorites.ITEM_TYPE_FOLDER:
folderInfo = findOrMakeFolder(folderList, id);
break;
}
folderInfo.title = c.getString(titleIndex);
folderInfo.id = id;
folderInfo.container = c.getInt(containerIndex);
folderInfo.screen = c.getInt(screenIndex);
folderInfo.cellX = c.getInt(cellXIndex);
folderInfo.cellY = c.getInt(cellYIndex);
return folderInfo;
}
} finally {
c.close();
}
return null;
}
/**
* Add an item to the database in a specified container. Sets the container, screen, cellX and
* cellY fields of the item. Also assigns an ID to the item.
*/
static void addItemToDatabase(Context context, final ItemInfo item, final long container,
final int screen, final int cellX, final int cellY, final boolean notify) {
item.container = container;
item.cellX = cellX;
item.cellY = cellY;
// We store hotseat items in canonical form which is this orientation invariant position
// in the hotseat
if (context instanceof Launcher && screen < 0 &&
container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) {
item.screen = ((Launcher) context).getHotseat().getOrderInHotseat(cellX, cellY);
} else {
item.screen = screen;
}
final ContentValues values = new ContentValues();
final ContentResolver cr = context.getContentResolver();
item.onAddToDatabase(values);
LauncherApplication app = (LauncherApplication) context.getApplicationContext();
item.id = app.getLauncherProvider().generateNewId();
values.put(LauncherSettings.Favorites._ID, item.id);
item.updateValuesWithCoordinates(values, item.cellX, item.cellY);
sWorker.post(new Runnable() {
public void run() {
cr.insert(notify ? LauncherSettings.Favorites.CONTENT_URI :
LauncherSettings.Favorites.CONTENT_URI_NO_NOTIFICATION, values);
sItemsIdMap.put(item.id, item);
switch (item.itemType) {
case LauncherSettings.Favorites.ITEM_TYPE_FOLDER:
sFolders.put(item.id, (FolderInfo) item);
// Fall through
case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
if (item.container == LauncherSettings.Favorites.CONTAINER_DESKTOP ||
item.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) {
sWorkspaceItems.add(item);
}
break;
case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET:
sAppWidgets.add((LauncherAppWidgetInfo) item);
break;
}
}
});
}
/**
* Creates a new unique child id, for a given cell span across all layouts.
*/
static int getCellLayoutChildId(
long container, int screen, int localCellX, int localCellY, int spanX, int spanY) {
return (((int) container & 0xFF) << 24)
| (screen & 0xFF) << 16 | (localCellX & 0xFF) << 8 | (localCellY & 0xFF);
}
static int getCellCountX() {
return mCellCountX;
}
static int getCellCountY() {
return mCellCountY;
}
/**
* Updates the model orientation helper to take into account the current layout dimensions
* when performing local/canonical coordinate transformations.
*/
static void updateWorkspaceLayoutCells(int shortAxisCellCount, int longAxisCellCount) {
mCellCountX = shortAxisCellCount;
mCellCountY = longAxisCellCount;
}
/**
* Update an item to the database in a specified container.
*/
static void updateItemInDatabase(Context context, final ItemInfo item) {
final ContentValues values = new ContentValues();
final ContentResolver cr = context.getContentResolver();
item.onAddToDatabase(values);
item.updateValuesWithCoordinates(values, item.cellX, item.cellY);
sWorker.post(new Runnable() {
public void run() {
cr.update(LauncherSettings.Favorites.getContentUri(item.id, false),
values, null, null);
final ItemInfo modelItem = sItemsIdMap.get(item.id);
if (item != modelItem) {
// 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
throw new RuntimeException("Error: ItemInfo passed to moveItemInDatabase " +
"doesn't match original");
}
}
});
}
/**
* Removes the specified item from the database
* @param context
* @param item
*/
static void deleteItemFromDatabase(Context context, final ItemInfo item) {
final ContentResolver cr = context.getContentResolver();
final Uri uriToDelete = LauncherSettings.Favorites.getContentUri(item.id, false);
sWorker.post(new Runnable() {
public void run() {
cr.delete(uriToDelete, null, null);
switch (item.itemType) {
case LauncherSettings.Favorites.ITEM_TYPE_FOLDER:
sFolders.remove(item.id);
sWorkspaceItems.remove(item);
break;
case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
sWorkspaceItems.remove(item);
break;
case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET:
sAppWidgets.remove((LauncherAppWidgetInfo) item);
break;
}
sItemsIdMap.remove(item.id);
}
});
}
/**
* Remove the contents of the specified folder from the database
*/
static void deleteFolderContentsFromDatabase(Context context, final FolderInfo info) {
final ContentResolver cr = context.getContentResolver();
sWorker.post(new Runnable() {
public void run() {
cr.delete(LauncherSettings.Favorites.getContentUri(info.id, false), null, null);
sItemsIdMap.remove(info.id);
sFolders.remove(info.id);
sWorkspaceItems.remove(info);
cr.delete(LauncherSettings.Favorites.CONTENT_URI_NO_NOTIFICATION,
LauncherSettings.Favorites.CONTAINER + "=" + info.id, null);
for (ItemInfo childInfo : info.contents) {
sItemsIdMap.remove(childInfo.id);
}
}
});
}
/**
* Set this as the current Launcher activity object for the loader.
*/
public void initialize(Callbacks callbacks) {
synchronized (mLock) {
mCallbacks = new WeakReference<Callbacks>(callbacks);
}
}
/**
* 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_LOADERS) Log.d(TAG, "onReceive intent=" + intent);
final String action = intent.getAction();
if (Intent.ACTION_PACKAGE_CHANGED.equals(action)
|| Intent.ACTION_PACKAGE_REMOVED.equals(action)
|| Intent.ACTION_PACKAGE_ADDED.equals(action)) {
final String packageName = intent.getData().getSchemeSpecificPart();
final boolean replacing = intent.getBooleanExtra(Intent.EXTRA_REPLACING, false);
int op = PackageUpdatedTask.OP_NONE;
if (packageName == null || packageName.length() == 0) {
// they sent us a bad intent
return;
}
if (Intent.ACTION_PACKAGE_CHANGED.equals(action)) {
op = PackageUpdatedTask.OP_UPDATE;
} else if (Intent.ACTION_PACKAGE_REMOVED.equals(action)) {
if (!replacing) {
op = PackageUpdatedTask.OP_REMOVE;
}
// else, we are replacing the package, so a PACKAGE_ADDED will be sent
// later, we will update the package at this time
} else if (Intent.ACTION_PACKAGE_ADDED.equals(action)) {
if (!replacing) {
op = PackageUpdatedTask.OP_ADD;
} else {
op = PackageUpdatedTask.OP_UPDATE;
}
}
if (op != PackageUpdatedTask.OP_NONE) {
enqueuePackageUpdated(new PackageUpdatedTask(op, new String[] { packageName }));
}
} else if (Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE.equals(action)) {
// First, schedule to add these apps back in.
String[] packages = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST);
enqueuePackageUpdated(new PackageUpdatedTask(PackageUpdatedTask.OP_ADD, packages));
// Then, rebind everything.
startLoaderFromBackground();
} else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) {
String[] packages = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST);
enqueuePackageUpdated(new PackageUpdatedTask(
PackageUpdatedTask.OP_UNAVAILABLE, packages));
} else if (Intent.ACTION_LOCALE_CHANGED.equals(action)) {
// If we have changed locale we need to clear out the labels in all apps.
// 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. Either way, mAllAppsLoaded will be cleared so it re-reads everything
// next time.
mAllAppsLoaded = false;
mWorkspaceLoaded = false;
startLoaderFromBackground();
} else if (SearchManager.INTENT_GLOBAL_SEARCH_ACTIVITY_CHANGED.equals(action)) {
Callbacks callbacks = mCallbacks.get();
callbacks.bindSearchablesChanged();
}
}
/**
* 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() {
boolean runLoader = false;
if (mCallbacks != null) {
Callbacks callbacks = mCallbacks.get();
if (callbacks != null) {
// Only actually run the loader if they're not paused.
if (!callbacks.setLoadOnResume()) {
runLoader = true;
}
}
}
if (runLoader) {
startLoader(mApp, false);
}
}
public void startLoader(Context context, boolean isLaunching) {
synchronized (mLock) {
if (DEBUG_LOADERS) {
Log.d(TAG, "startLoader isLaunching=" + isLaunching);
}
// Don't bother to start the thread if we know it's not going to do anything
if (mCallbacks != null && mCallbacks.get() != null) {
// If there is already one running, tell it to stop.
LoaderTask oldTask = mLoaderTask;
if (oldTask != null) {
if (oldTask.isLaunching()) {
// don't downgrade isLaunching if we're already running
isLaunching = true;
}
oldTask.stopLocked();
}
mLoaderTask = new LoaderTask(context, isLaunching);
sWorker.post(mLoaderTask);
}
}
}
public void stopLoader() {
synchronized (mLock) {
if (mLoaderTask != null) {
mLoaderTask.stopLocked();
}
}
}
/**
* Runnable for the thread that loads the contents of the launcher:
* - workspace icons
* - widgets
* - all apps icons
*/
private class LoaderTask implements Runnable {
private Context mContext;
private Thread mWaitThread;
private boolean mIsLaunching;
private boolean mStopped;
private boolean mLoadAndBindStepFinished;
private HashMap<Object, CharSequence> mLabelCache;
LoaderTask(Context context, boolean isLaunching) {
mContext = context;
mIsLaunching = isLaunching;
mLabelCache = new HashMap<Object, CharSequence>();
}
boolean isLaunching() {
return mIsLaunching;
}
private void loadAndBindWorkspace() {
// Load the workspace
if (DEBUG_LOADERS) {
Log.d(TAG, "loadAndBindWorkspace mWorkspaceLoaded=" + mWorkspaceLoaded);
}
if (!mWorkspaceLoaded) {
loadWorkspace();
if (mStopped) {
return;
}
mWorkspaceLoaded = true;
}
// Bind the workspace
bindWorkspace();
}
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 {
this.wait();
} catch (InterruptedException ex) {
// Ignore
}
}
if (DEBUG_LOADERS) {
Log.d(TAG, "waited "
+ (SystemClock.uptimeMillis()-workspaceWaitTime)
+ "ms for previous step to finish binding");
}
}
}
public void run() {
// Optimize for end-user experience: if the Launcher is up and // running with the
// All Apps interface in the foreground, load All Apps first. Otherwise, load the
// workspace first (default).
final Callbacks cbk = mCallbacks.get();
final boolean loadWorkspaceFirst = cbk != null ? (!cbk.isAllAppsVisible()) : true;
keep_running: {
// Elevate priority when Home launches for the first time to avoid
// starving at boot time. Staring at a blank home is not cool.
synchronized (mLock) {
android.os.Process.setThreadPriority(mIsLaunching
? Process.THREAD_PRIORITY_DEFAULT : Process.THREAD_PRIORITY_BACKGROUND);
}
if (loadWorkspaceFirst) {
if (DEBUG_LOADERS) Log.d(TAG, "step 1: loading workspace");
loadAndBindWorkspace();
} else {
if (DEBUG_LOADERS) Log.d(TAG, "step 1: special: loading all apps");
loadAndBindAllApps();
}
if (mStopped) {
break keep_running;
}
// Whew! Hard work done. Slow us down, and wait until the UI thread has
// settled down.
synchronized (mLock) {
if (mIsLaunching) {
android.os.Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
}
}
waitForIdle();
// second step
if (loadWorkspaceFirst) {
if (DEBUG_LOADERS) Log.d(TAG, "step 2: loading all apps");
loadAndBindAllApps();
} else {
if (DEBUG_LOADERS) Log.d(TAG, "step 2: special: loading workspace");
loadAndBindWorkspace();
}
}
// 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;
}
}
}
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;
}
}
// check & update map of what's occupied; used to discard overlapping/invalid items
private boolean checkItemPlacement(ItemInfo occupied[][][], ItemInfo item) {
if (item.container != LauncherSettings.Favorites.CONTAINER_DESKTOP) {
return true;
}
for (int x = item.cellX; x < (item.cellX+item.spanX); x++) {
for (int y = item.cellY; y < (item.cellY+item.spanY); y++) {
if (occupied[item.screen][x][y] != null) {
Log.e(TAG, "Error loading shortcut " + item
+ " into cell (" + item.screen + ":"
+ x + "," + y
+ ") occupied by "
+ occupied[item.screen][x][y]);
return false;
}
}
}
for (int x = item.cellX; x < (item.cellX+item.spanX); x++) {
for (int y = item.cellY; y < (item.cellY+item.spanY); y++) {
occupied[item.screen][x][y] = item;
}
}
return true;
}
private void loadWorkspace() {
final long t = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0;
final Context context = mContext;
final ContentResolver contentResolver = context.getContentResolver();
final PackageManager manager = context.getPackageManager();
final AppWidgetManager widgets = AppWidgetManager.getInstance(context);
final boolean isSafeMode = manager.isSafeMode();
sWorkspaceItems.clear();
sAppWidgets.clear();
sFolders.clear();
sItemsIdMap.clear();
final ArrayList<Long> itemsToRemove = new ArrayList<Long>();
final Cursor c = contentResolver.query(
LauncherSettings.Favorites.CONTENT_URI, null, null, null, null);
final ItemInfo occupied[][][] =
new ItemInfo[Launcher.SCREEN_COUNT][mCellCountX][mCellCountY];
try {
final int idIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites._ID);
final int intentIndex = c.getColumnIndexOrThrow
(LauncherSettings.Favorites.INTENT);
final int titleIndex = c.getColumnIndexOrThrow
(LauncherSettings.Favorites.TITLE);
final int iconTypeIndex = c.getColumnIndexOrThrow(
LauncherSettings.Favorites.ICON_TYPE);
final int iconIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.ICON);
final int iconPackageIndex = c.getColumnIndexOrThrow(
LauncherSettings.Favorites.ICON_PACKAGE);
final int iconResourceIndex = c.getColumnIndexOrThrow(
LauncherSettings.Favorites.ICON_RESOURCE);
final int containerIndex = c.getColumnIndexOrThrow(
LauncherSettings.Favorites.CONTAINER);
final int itemTypeIndex = c.getColumnIndexOrThrow(
LauncherSettings.Favorites.ITEM_TYPE);
final int appWidgetIdIndex = c.getColumnIndexOrThrow(
LauncherSettings.Favorites.APPWIDGET_ID);
final int screenIndex = c.getColumnIndexOrThrow(
LauncherSettings.Favorites.SCREEN);
final int cellXIndex = c.getColumnIndexOrThrow
(LauncherSettings.Favorites.CELLX);
final int cellYIndex = c.getColumnIndexOrThrow
(LauncherSettings.Favorites.CELLY);
final int spanXIndex = c.getColumnIndexOrThrow
(LauncherSettings.Favorites.SPANX);
final int spanYIndex = c.getColumnIndexOrThrow(
LauncherSettings.Favorites.SPANY);
final int uriIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.URI);
final int displayModeIndex = c.getColumnIndexOrThrow(
LauncherSettings.Favorites.DISPLAY_MODE);
ShortcutInfo info;
String intentDescription;
LauncherAppWidgetInfo appWidgetInfo;
int container;
long id;
Intent intent;
while (!mStopped && c.moveToNext()) {
try {
int itemType = c.getInt(itemTypeIndex);
switch (itemType) {
case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
intentDescription = c.getString(intentIndex);
try {
intent = Intent.parseUri(intentDescription, 0);
} catch (URISyntaxException e) {
continue;
}
if (itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION) {
info = getShortcutInfo(manager, intent, context, c, iconIndex,
titleIndex, mLabelCache);
} else {
info = getShortcutInfo(c, context, iconTypeIndex,
iconPackageIndex, iconResourceIndex, iconIndex,
titleIndex);
}
if (info != null) {
info.intent = intent;
info.id = c.getLong(idIndex);
container = c.getInt(containerIndex);
info.container = container;
info.screen = c.getInt(screenIndex);
info.cellX = c.getInt(cellXIndex);
info.cellY = c.getInt(cellYIndex);
// check & update map of what's occupied
if (!checkItemPlacement(occupied, info)) {
break;
}
switch (container) {
case LauncherSettings.Favorites.CONTAINER_DESKTOP:
case LauncherSettings.Favorites.CONTAINER_HOTSEAT:
sWorkspaceItems.add(info);
break;
default:
// Item is in a user folder
FolderInfo folderInfo =
findOrMakeFolder(sFolders, container);
folderInfo.add(info);
break;
}
sItemsIdMap.put(info.id, info);
// now that we've loaded everthing re-save it with the
// icon in case it disappears somehow.
updateSavedIcon(context, info, c, iconIndex);
} else {
// Failed to load the shortcut, probably because the
// activity manager couldn't resolve it (maybe the app
// was uninstalled), or the db row was somehow screwed up.
// Delete it.
id = c.getLong(idIndex);
Log.e(TAG, "Error loading shortcut " + id + ", removing it");
contentResolver.delete(LauncherSettings.Favorites.getContentUri(
id, false), null, null);
}
break;
case LauncherSettings.Favorites.ITEM_TYPE_FOLDER:
id = c.getLong(idIndex);
FolderInfo folderInfo = findOrMakeFolder(sFolders, id);
folderInfo.title = c.getString(titleIndex);
folderInfo.id = id;
container = c.getInt(containerIndex);
folderInfo.container = container;
folderInfo.screen = c.getInt(screenIndex);
folderInfo.cellX = c.getInt(cellXIndex);
folderInfo.cellY = c.getInt(cellYIndex);
// check & update map of what's occupied
if (!checkItemPlacement(occupied, folderInfo)) {
break;
}
switch (container) {
case LauncherSettings.Favorites.CONTAINER_DESKTOP:
case LauncherSettings.Favorites.CONTAINER_HOTSEAT:
sWorkspaceItems.add(folderInfo);
break;
}
sItemsIdMap.put(folderInfo.id, folderInfo);
sFolders.put(folderInfo.id, folderInfo);
break;
case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET:
// Read all Launcher-specific widget details
int appWidgetId = c.getInt(appWidgetIdIndex);
id = c.getLong(idIndex);
final AppWidgetProviderInfo provider =
widgets.getAppWidgetInfo(appWidgetId);
if (!isSafeMode && (provider == null || provider.provider == null ||
provider.provider.getPackageName() == null)) {
Log.e(TAG, "Deleting widget that isn't installed anymore: id="
+ id + " appWidgetId=" + appWidgetId);
itemsToRemove.add(id);
} else {
appWidgetInfo = new LauncherAppWidgetInfo(appWidgetId);
appWidgetInfo.id = id;
appWidgetInfo.screen = c.getInt(screenIndex);
appWidgetInfo.cellX = c.getInt(cellXIndex);
appWidgetInfo.cellY = c.getInt(cellYIndex);
appWidgetInfo.spanX = c.getInt(spanXIndex);
appWidgetInfo.spanY = c.getInt(spanYIndex);
container = c.getInt(containerIndex);
if (container != LauncherSettings.Favorites.CONTAINER_DESKTOP &&
container != LauncherSettings.Favorites.CONTAINER_HOTSEAT) {
Log.e(TAG, "Widget found where container "
+ "!= CONTAINER_DESKTOP nor CONTAINER_HOTSEAT - ignoring!");
continue;
}
appWidgetInfo.container = c.getInt(containerIndex);
// check & update map of what's occupied
if (!checkItemPlacement(occupied, appWidgetInfo)) {
break;
}
sItemsIdMap.put(appWidgetInfo.id, appWidgetInfo);
sAppWidgets.add(appWidgetInfo);
}
break;
}
} catch (Exception e) {
Log.w(TAG, "Desktop items loading interrupted:", e);
}
}
} finally {
c.close();
}
if (itemsToRemove.size() > 0) {
ContentProviderClient client = contentResolver.acquireContentProviderClient(
LauncherSettings.Favorites.CONTENT_URI);
// Remove dead items
for (long id : itemsToRemove) {
if (DEBUG_LOADERS) {
Log.d(TAG, "Removed id = " + id);
}
// Don't notify content observers
try {
client.delete(LauncherSettings.Favorites.getContentUri(id, false),
null, null);
} catch (RemoteException e) {
Log.w(TAG, "Could not remove id = " + id);
}
}
}
if (DEBUG_LOADERS) {
Log.d(TAG, "loaded workspace in " + (SystemClock.uptimeMillis()-t) + "ms");
Log.d(TAG, "workspace layout: ");
for (int y = 0; y < mCellCountY; y++) {
String line = "";
for (int s = 0; s < Launcher.SCREEN_COUNT; s++) {
if (s > 0) {
line += " | ";
}
for (int x = 0; x < mCellCountX; x++) {
line += ((occupied[s][x][y] != null) ? "#" : ".");
}
}
Log.d(TAG, "[ " + line + " ]");
}
}
}
/**
* Read everything out of our database.
*/
private void bindWorkspace() {
final long t = SystemClock.uptimeMillis();
// 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;
}
int N;
// Tell the workspace that we're about to start firing items at it
mHandler.post(new Runnable() {
public void run() {
Callbacks callbacks = tryGetCallbacks(oldCallbacks);
if (callbacks != null) {
callbacks.startBinding();
}
}
});
// Add the items to the workspace.
N = sWorkspaceItems.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);
mHandler.post(new Runnable() {
public void run() {
Callbacks callbacks = tryGetCallbacks(oldCallbacks);
if (callbacks != null) {
callbacks.bindItems(sWorkspaceItems, start, start+chunkSize);
}
}
});
}
mHandler.post(new Runnable() {
public void run() {
Callbacks callbacks = tryGetCallbacks(oldCallbacks);
if (callbacks != null) {
callbacks.bindFolders(sFolders);
}
}
});
// Wait until the queue goes empty.
mHandler.post(new Runnable() {
public void run() {
if (DEBUG_LOADERS) {
Log.d(TAG, "Going to start binding widgets soon.");
}
}
});
// Bind the widgets, one at a time.
// WARNING: this is calling into the workspace from the background thread,
// but since getCurrentScreen() just returns the int, we should be okay. This
// is just a hint for the order, and if it's wrong, we'll be okay.
// TODO: instead, we should have that push the current screen into here.
final int currentScreen = oldCallbacks.getCurrentWorkspaceScreen();
N = sAppWidgets.size();
// once for the current screen
for (int i=0; i<N; i++) {
final LauncherAppWidgetInfo widget = sAppWidgets.get(i);
if (widget.screen == currentScreen) {
mHandler.post(new Runnable() {
public void run() {
Callbacks callbacks = tryGetCallbacks(oldCallbacks);
if (callbacks != null) {
callbacks.bindAppWidget(widget);
}
}
});
}
}
// once for the other screens
for (int i=0; i<N; i++) {
final LauncherAppWidgetInfo widget = sAppWidgets.get(i);
if (widget.screen != currentScreen) {
mHandler.post(new Runnable() {
public void run() {
Callbacks callbacks = tryGetCallbacks(oldCallbacks);
if (callbacks != null) {
callbacks.bindAppWidget(widget);
}
}
});
}
}
// Tell the workspace that we're done.
mHandler.post(new Runnable() {
public void run() {
Callbacks callbacks = tryGetCallbacks(oldCallbacks);
if (callbacks != null) {
callbacks.finishBindingItems();
}
}
});
// If we're profiling, this is the last thing in the queue.
mHandler.post(new Runnable() {
public void run() {
if (DEBUG_LOADERS) {
Log.d(TAG, "bound workspace in "
+ (SystemClock.uptimeMillis()-t) + "ms");
}
}
});
}
private void loadAndBindAllApps() {
if (DEBUG_LOADERS) {
Log.d(TAG, "loadAndBindAllApps mAllAppsLoaded=" + mAllAppsLoaded);
}
if (!mAllAppsLoaded) {
loadAllAppsByBatch();
if (mStopped) {
return;
}
mAllAppsLoaded = true;
} else {
onlyBindAllApps();
}
}
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
final ArrayList<ApplicationInfo> list
= (ArrayList<ApplicationInfo>)mAllAppsList.data.clone();
mHandler.post(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");
}
}
});
}
private void loadAllAppsByBatch() {
final long t = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0;
// 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 (loadAllAppsByBatch)");
return;
}
final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
final PackageManager packageManager = mContext.getPackageManager();
List<ResolveInfo> apps = null;
int N = Integer.MAX_VALUE;
int startIndex;
int i=0;
int batchSize = -1;
while (i < N && !mStopped) {
if (i == 0) {
mAllAppsList.clear();
final long qiaTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0;
apps = packageManager.queryIntentActivities(mainIntent, 0);
if (DEBUG_LOADERS) {
Log.d(TAG, "queryIntentActivities took "
+ (SystemClock.uptimeMillis()-qiaTime) + "ms");
}
if (apps == null) {
return;
}
N = apps.size();
if (DEBUG_LOADERS) {
Log.d(TAG, "queryIntentActivities got " + N + " apps");
}
if (N == 0) {
// There are no apps?!?
return;
}
if (mBatchSize == 0) {
batchSize = N;
} else {
batchSize = mBatchSize;
}
final long sortTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0;
Collections.sort(apps,
new LauncherModel.ShortcutNameComparator(packageManager, mLabelCache));
if (DEBUG_LOADERS) {
Log.d(TAG, "sort took "
+ (SystemClock.uptimeMillis()-sortTime) + "ms");
}
}
final long t2 = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0;
startIndex = i;
for (int j=0; i<N && j<batchSize; j++) {
// This builds the icon bitmaps.
mAllAppsList.add(new ApplicationInfo(packageManager, apps.get(i),
mIconCache, mLabelCache));
i++;
}
final boolean first = i <= batchSize;
final Callbacks callbacks = tryGetCallbacks(oldCallbacks);
final ArrayList<ApplicationInfo> added = mAllAppsList.added;
mAllAppsList.added = new ArrayList<ApplicationInfo>();
mHandler.post(new Runnable() {
public void run() {
final long t = SystemClock.uptimeMillis();
if (callbacks != null) {
if (first) {
callbacks.bindAllApplications(added);
} else {
callbacks.bindAppsAdded(added);
}
if (DEBUG_LOADERS) {
Log.d(TAG, "bound " + added.size() + " apps in "
+ (SystemClock.uptimeMillis() - t) + "ms");
}
} else {
Log.i(TAG, "not binding apps: no Launcher activity");
}
}
});
if (DEBUG_LOADERS) {
Log.d(TAG, "batch of " + (i-startIndex) + " icons processed in "
+ (SystemClock.uptimeMillis()-t2) + "ms");
}
if (mAllAppsLoadDelay > 0 && i < N) {
try {
if (DEBUG_LOADERS) {
Log.d(TAG, "sleeping for " + mAllAppsLoadDelay + "ms");
}
Thread.sleep(mAllAppsLoadDelay);
} catch (InterruptedException exc) { }
}
}
if (DEBUG_LOADERS) {
Log.d(TAG, "cached all " + N + " apps in "
+ (SystemClock.uptimeMillis()-t) + "ms"
+ (mAllAppsLoadDelay > 0 ? " (including delay)" : ""));
}
}
public void dumpState() {
Log.d(TAG, "mLoaderTask.mContext=" + mContext);
Log.d(TAG, "mLoaderTask.mWaitThread=" + mWaitThread);
Log.d(TAG, "mLoaderTask.mIsLaunching=" + mIsLaunching);
Log.d(TAG, "mLoaderTask.mStopped=" + mStopped);
Log.d(TAG, "mLoaderTask.mLoadAndBindStepFinished=" + mLoadAndBindStepFinished);
Log.d(TAG, "mItems size=" + sWorkspaceItems.size());
}
}
void enqueuePackageUpdated(PackageUpdatedTask task) {
sWorker.post(task);
}
private class PackageUpdatedTask implements Runnable {
int mOp;
String[] mPackages;
public static final int OP_NONE = 0;
public static final int OP_ADD = 1;
public static final int OP_UPDATE = 2;
public static final int OP_REMOVE = 3; // uninstlled
public static final int OP_UNAVAILABLE = 4; // external media unmounted
public PackageUpdatedTask(int op, String[] packages) {
mOp = op;
mPackages = packages;
}
public void run() {
final Context context = mApp;
final String[] packages = mPackages;
final int N = packages.length;
switch (mOp) {
case OP_ADD:
for (int i=0; i<N; i++) {
if (DEBUG_LOADERS) Log.d(TAG, "mAllAppsList.addPackage " + packages[i]);
mAllAppsList.addPackage(context, packages[i]);
}
break;
case OP_UPDATE:
for (int i=0; i<N; i++) {
if (DEBUG_LOADERS) Log.d(TAG, "mAllAppsList.updatePackage " + packages[i]);
mAllAppsList.updatePackage(context, packages[i]);
}
break;
case OP_REMOVE:
case OP_UNAVAILABLE:
for (int i=0; i<N; i++) {
if (DEBUG_LOADERS) Log.d(TAG, "mAllAppsList.removePackage " + packages[i]);
mAllAppsList.removePackage(packages[i]);
}
break;
}
ArrayList<ApplicationInfo> added = null;
ArrayList<ApplicationInfo> removed = null;
ArrayList<ApplicationInfo> modified = null;
if (mAllAppsList.added.size() > 0) {
added = mAllAppsList.added;
mAllAppsList.added = new ArrayList<ApplicationInfo>();
}
if (mAllAppsList.removed.size() > 0) {
removed = mAllAppsList.removed;
mAllAppsList.removed = new ArrayList<ApplicationInfo>();
for (ApplicationInfo info: removed) {
mIconCache.remove(info.intent.getComponent());
}
}
if (mAllAppsList.modified.size() > 0) {
modified = mAllAppsList.modified;
mAllAppsList.modified = new ArrayList<ApplicationInfo>();
}
final Callbacks callbacks = mCallbacks != null ? mCallbacks.get() : null;
if (callbacks == null) {
Log.w(TAG, "Nobody to tell about the new app. Launcher is probably loading.");
return;
}
if (added != null) {
final ArrayList<ApplicationInfo> addedFinal = added;
mHandler.post(new Runnable() {
public void run() {
Callbacks cb = mCallbacks != null ? mCallbacks.get() : null;
if (callbacks == cb && cb != null) {
callbacks.bindAppsAdded(addedFinal);
}
}
});
}
if (modified != null) {
final ArrayList<ApplicationInfo> modifiedFinal = modified;
mHandler.post(new Runnable() {
public void run() {
Callbacks cb = mCallbacks != null ? mCallbacks.get() : null;
if (callbacks == cb && cb != null) {
callbacks.bindAppsUpdated(modifiedFinal);
}
}
});
}
if (removed != null) {
final boolean permanent = mOp != OP_UNAVAILABLE;
final ArrayList<ApplicationInfo> removedFinal = removed;
mHandler.post(new Runnable() {
public void run() {
Callbacks cb = mCallbacks != null ? mCallbacks.get() : null;
if (callbacks == cb && cb != null) {
callbacks.bindAppsRemoved(removedFinal, permanent);
}
}
});
}
mHandler.post(new Runnable() {
@Override
public void run() {
Callbacks cb = mCallbacks != null ? mCallbacks.get() : null;
if (callbacks == cb && cb != null) {
callbacks.bindPackagesUpdated();
}
}
});
}
}
/**
* This is called from the code that adds shortcuts from the intent receiver. This
* doesn't have a Cursor, but
*/
public ShortcutInfo getShortcutInfo(PackageManager manager, Intent intent, Context context) {
return getShortcutInfo(manager, intent, context, null, -1, -1, null);
}
/**
* Make an ShortcutInfo object for a shortcut that is an application.
*
* If c is not null, then it will be used to fill in missing data like the title and icon.
*/
public ShortcutInfo getShortcutInfo(PackageManager manager, Intent intent, Context context,
Cursor c, int iconIndex, int titleIndex, HashMap<Object, CharSequence> labelCache) {
Bitmap icon = null;
final ShortcutInfo info = new ShortcutInfo();
ComponentName componentName = intent.getComponent();
if (componentName == null) {
return null;
}
// TODO: See if the PackageManager knows about this case. If it doesn't
// then return null & delete this.
// the resource -- This may implicitly give us back the fallback icon,
// but don't worry about that. All we're doing with usingFallbackIcon is
// to avoid saving lots of copies of that in the database, and most apps
// have icons anyway.
final ResolveInfo resolveInfo = manager.resolveActivity(intent, 0);
if (resolveInfo != null) {
icon = mIconCache.getIcon(componentName, resolveInfo);
}
// the db
if (icon == null) {
if (c != null) {
icon = getIconFromCursor(c, iconIndex, context);
}
}
// the fallback icon
if (icon == null) {
icon = getFallbackIcon();
info.usingFallbackIcon = true;
}
info.setIcon(icon);
// from the resource
if (resolveInfo != null) {
if (labelCache != null && labelCache.containsKey(resolveInfo)) {
info.title = labelCache.get(resolveInfo);
} else {
info.title = resolveInfo.activityInfo.loadLabel(manager);
if (labelCache != null) {
labelCache.put(resolveInfo, info.title);
}
}
}
// from the db
if (info.title == null) {
if (c != null) {
info.title = c.getString(titleIndex);
}
}
// fall back to the class name of the activity
if (info.title == null) {
info.title = componentName.getClassName();
}
info.itemType = LauncherSettings.Favorites.ITEM_TYPE_APPLICATION;
return info;
}
/**
* Make an ShortcutInfo object for a shortcut that isn't an application.
*/
private ShortcutInfo getShortcutInfo(Cursor c, Context context,
int iconTypeIndex, int iconPackageIndex, int iconResourceIndex, int iconIndex,
int titleIndex) {
Bitmap icon = null;
final ShortcutInfo info = new ShortcutInfo();
info.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT;
// TODO: If there's an explicit component and we can't install that, delete it.
info.title = c.getString(titleIndex);
int iconType = c.getInt(iconTypeIndex);
switch (iconType) {
case LauncherSettings.Favorites.ICON_TYPE_RESOURCE:
String packageName = c.getString(iconPackageIndex);
String resourceName = c.getString(iconResourceIndex);
PackageManager packageManager = context.getPackageManager();
info.customIcon = false;
// the resource
try {
Resources resources = packageManager.getResourcesForApplication(packageName);
if (resources != null) {
final int id = resources.getIdentifier(resourceName, null, null);
icon = Utilities.createIconBitmap(
mIconCache.getFullResIcon(resources, id), context);
}
} catch (Exception e) {
// drop this. we have other places to look for icons
}
// the db
if (icon == null) {
icon = getIconFromCursor(c, iconIndex, context);
}
// the fallback icon
if (icon == null) {
icon = getFallbackIcon();
info.usingFallbackIcon = true;
}
break;
case LauncherSettings.Favorites.ICON_TYPE_BITMAP:
icon = getIconFromCursor(c, iconIndex, context);
if (icon == null) {
icon = getFallbackIcon();
info.customIcon = false;
info.usingFallbackIcon = true;
} else {
info.customIcon = true;
}
break;
default:
icon = getFallbackIcon();
info.usingFallbackIcon = true;
info.customIcon = false;
break;
}
info.setIcon(icon);
return info;
}
Bitmap getIconFromCursor(Cursor c, int iconIndex, Context context) {
if (false) {
Log.d(TAG, "getIconFromCursor app="
+ c.getString(c.getColumnIndexOrThrow(LauncherSettings.Favorites.TITLE)));
}
byte[] data = c.getBlob(iconIndex);
try {
return Utilities.createIconBitmap(
BitmapFactory.decodeByteArray(data, 0, data.length), context);
} catch (Exception e) {
return null;
}
}
ShortcutInfo addShortcut(Context context, Intent data, long container, int screen,
int cellX, int cellY, boolean notify) {
final ShortcutInfo info = infoFromShortcutIntent(context, data, null);
addItemToDatabase(context, info, container, screen, cellX, cellY, notify);
return info;
}
/**
* Attempts to find an AppWidgetProviderInfo that matches the given component.
*/
AppWidgetProviderInfo findAppWidgetProviderInfoWithComponent(Context context,
ComponentName component) {
List<AppWidgetProviderInfo> widgets =
AppWidgetManager.getInstance(context).getInstalledProviders();
for (AppWidgetProviderInfo info : widgets) {
if (info.provider.equals(component)) {
return info;
}
}
return null;
}
/**
* Returns a list of all the widgets that can handle configuration with a particular mimeType.
*/
List<WidgetMimeTypeHandlerData> resolveWidgetsForMimeType(Context context, String mimeType) {
final PackageManager packageManager = context.getPackageManager();
final List<WidgetMimeTypeHandlerData> supportedConfigurationActivities =
new ArrayList<WidgetMimeTypeHandlerData>();
final Intent supportsIntent =
new Intent(InstallWidgetReceiver.ACTION_SUPPORTS_CLIPDATA_MIMETYPE);
supportsIntent.setType(mimeType);
// Create a set of widget configuration components that we can test against
final List<AppWidgetProviderInfo> widgets =
AppWidgetManager.getInstance(context).getInstalledProviders();
final HashMap<ComponentName, AppWidgetProviderInfo> configurationComponentToWidget =
new HashMap<ComponentName, AppWidgetProviderInfo>();
for (AppWidgetProviderInfo info : widgets) {
configurationComponentToWidget.put(info.configure, info);
}
// Run through each of the intents that can handle this type of clip data, and cross
// reference them with the components that are actual configuration components
final List<ResolveInfo> activities = packageManager.queryIntentActivities(supportsIntent,
PackageManager.MATCH_DEFAULT_ONLY);
for (ResolveInfo info : activities) {
final ActivityInfo activityInfo = info.activityInfo;
final ComponentName infoComponent = new ComponentName(activityInfo.packageName,
activityInfo.name);
if (configurationComponentToWidget.containsKey(infoComponent)) {
supportedConfigurationActivities.add(
new InstallWidgetReceiver.WidgetMimeTypeHandlerData(info,
configurationComponentToWidget.get(infoComponent)));
}
}
return supportedConfigurationActivities;
}
ShortcutInfo infoFromShortcutIntent(Context context, Intent data, Bitmap fallbackIcon) {
Intent intent = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_INTENT);
String name = data.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
Parcelable bitmap = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_ICON);
Bitmap icon = null;
boolean customIcon = false;
ShortcutIconResource iconResource = null;
if (bitmap != null && bitmap instanceof Bitmap) {
icon = Utilities.createIconBitmap(new FastBitmapDrawable((Bitmap)bitmap), context);
customIcon = true;
} else {
Parcelable extra = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE);
if (extra != null && extra instanceof ShortcutIconResource) {
try {
iconResource = (ShortcutIconResource) extra;
final PackageManager packageManager = context.getPackageManager();
Resources resources = packageManager.getResourcesForApplication(
iconResource.packageName);
final int id = resources.getIdentifier(iconResource.resourceName, null, null);
icon = Utilities.createIconBitmap(
mIconCache.getFullResIcon(resources, id), context);
} catch (Exception e) {
Log.w(TAG, "Could not load shortcut icon: " + extra);
}
}
}
final ShortcutInfo info = new ShortcutInfo();
if (icon == null) {
if (fallbackIcon != null) {
icon = fallbackIcon;
} else {
icon = getFallbackIcon();
info.usingFallbackIcon = true;
}
}
info.setIcon(icon);
info.title = name;
info.intent = intent;
info.customIcon = customIcon;
info.iconResource = iconResource;
return info;
}
void updateSavedIcon(Context context, ShortcutInfo info, Cursor c, int iconIndex) {
// If apps can't be on SD, don't even bother.
if (!mAppsCanBeOnExternalStorage) {
return;
}
// If this icon doesn't have a custom icon, check to see
// what's stored in the DB, and if it doesn't match what
// we're going to show, store what we are going to show back
// into the DB. We do this so when we're loading, if the
// package manager can't find an icon (for example because
// the app is on SD) then we can use that instead.
if (!info.customIcon && !info.usingFallbackIcon) {
boolean needSave;
byte[] data = c.getBlob(iconIndex);
try {
if (data != null) {
Bitmap saved = BitmapFactory.decodeByteArray(data, 0, data.length);
Bitmap loaded = info.getIcon(mIconCache);
needSave = !saved.sameAs(loaded);
} else {
needSave = true;
}
} catch (Exception e) {
needSave = true;
}
if (needSave) {
Log.d(TAG, "going to save icon bitmap for info=" + info);
// This is slower than is ideal, but this only happens once
// or when the app is updated with a new icon.
updateItemInDatabase(context, info);
}
}
}
/**
* Return an existing FolderInfo object if we have encountered this ID previously,
* or make a new one.
*/
private static FolderInfo findOrMakeFolder(HashMap<Long, FolderInfo> folders, long id) {
// See if a placeholder was created for us already
FolderInfo folderInfo = folders.get(id);
if (folderInfo == null) {
// No placeholder -- create a new instance
folderInfo = new FolderInfo();
folders.put(id, folderInfo);
}
return folderInfo;
}
private static final Collator sCollator = Collator.getInstance();
public static final Comparator<ApplicationInfo> APP_NAME_COMPARATOR
= new Comparator<ApplicationInfo>() {
public final int compare(ApplicationInfo a, ApplicationInfo b) {
int result = sCollator.compare(a.title.toString(), b.title.toString());
if (result == 0) {
result = a.componentName.compareTo(b.componentName);
}
return result;
}
};
public static final Comparator<ApplicationInfo> APP_INSTALL_TIME_COMPARATOR
= new Comparator<ApplicationInfo>() {
public final int compare(ApplicationInfo a, ApplicationInfo b) {
if (a.firstInstallTime < b.firstInstallTime) return 1;
if (a.firstInstallTime > b.firstInstallTime) return -1;
return 0;
}
};
public static final Comparator<AppWidgetProviderInfo> WIDGET_NAME_COMPARATOR
= new Comparator<AppWidgetProviderInfo>() {
public final int compare(AppWidgetProviderInfo a, AppWidgetProviderInfo b) {
return sCollator.compare(a.label.toString(), b.label.toString());
}
};
public static class ShortcutNameComparator implements Comparator<ResolveInfo> {
private PackageManager mPackageManager;
private HashMap<Object, CharSequence> mLabelCache;
ShortcutNameComparator(PackageManager pm) {
mPackageManager = pm;
mLabelCache = new HashMap<Object, CharSequence>();
}
ShortcutNameComparator(PackageManager pm, HashMap<Object, CharSequence> labelCache) {
mPackageManager = pm;
mLabelCache = labelCache;
}
public final int compare(ResolveInfo a, ResolveInfo b) {
CharSequence labelA, labelB;
if (mLabelCache.containsKey(a)) {
labelA = mLabelCache.get(a);
} else {
labelA = a.loadLabel(mPackageManager).toString();
mLabelCache.put(a, labelA);
}
if (mLabelCache.containsKey(b)) {
labelB = mLabelCache.get(b);
} else {
labelB = b.loadLabel(mPackageManager).toString();
mLabelCache.put(b, labelB);
}
return sCollator.compare(labelA, labelB);
}
};
public static class WidgetAndShortcutNameComparator implements Comparator<Object> {
private PackageManager mPackageManager;
private HashMap<Object, String> mLabelCache;
WidgetAndShortcutNameComparator(PackageManager pm) {
mPackageManager = pm;
mLabelCache = new HashMap<Object, String>();
}
public final int compare(Object a, Object b) {
String labelA, labelB;
if (mLabelCache.containsKey(a)) {
labelA = mLabelCache.get(a);
} else {
labelA = (a instanceof AppWidgetProviderInfo) ?
((AppWidgetProviderInfo) a).label :
((ResolveInfo) a).loadLabel(mPackageManager).toString();
mLabelCache.put(a, labelA);
}
if (mLabelCache.containsKey(b)) {
labelB = mLabelCache.get(b);
} else {
labelB = (b instanceof AppWidgetProviderInfo) ?
((AppWidgetProviderInfo) b).label :
((ResolveInfo) b).loadLabel(mPackageManager).toString();
mLabelCache.put(b, labelB);
}
return sCollator.compare(labelA, labelB);
}
};
public void dumpState() {
Log.d(TAG, "mCallbacks=" + mCallbacks);
ApplicationInfo.dumpApplicationInfoList(TAG, "mAllAppsList.data", mAllAppsList.data);
ApplicationInfo.dumpApplicationInfoList(TAG, "mAllAppsList.added", mAllAppsList.added);
ApplicationInfo.dumpApplicationInfoList(TAG, "mAllAppsList.removed", mAllAppsList.removed);
ApplicationInfo.dumpApplicationInfoList(TAG, "mAllAppsList.modified", mAllAppsList.modified);
if (mLoaderTask != null) {
mLoaderTask.dumpState();
} else {
Log.d(TAG, "mLoaderTask=null");
}
}
}
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