Launcher.java revision 98047dc39fd56efc6bf1e93a46eb8614569d2226 
1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.launcher2;
18
19import android.app.Activity;
20import android.app.AlertDialog;
21import android.app.Dialog;
22import android.app.ISearchManager;
23import android.app.SearchManager;
24import android.app.StatusBarManager;
25import android.app.WallpaperManager;
26import android.content.ActivityNotFoundException;
27import android.content.BroadcastReceiver;
28import android.content.ComponentName;
29import android.content.ContentResolver;
30import android.content.Context;
31import android.content.DialogInterface;
32import android.content.Intent;
33import android.content.Intent.ShortcutIconResource;
34import android.content.IntentFilter;
35import android.content.pm.ActivityInfo;
36import android.content.pm.PackageManager;
37import android.content.pm.PackageManager.NameNotFoundException;
38import android.content.res.Configuration;
39import android.content.res.Resources;
40import android.database.ContentObserver;
41import android.graphics.Bitmap;
42import android.graphics.Rect;
43import android.graphics.Canvas;
44import android.graphics.drawable.Drawable;
45import android.graphics.drawable.ColorDrawable;
46import android.os.Bundle;
47import android.os.Handler;
48import android.os.Parcelable;
49import android.os.RemoteException;
50import android.os.ServiceManager;
51import android.os.SystemProperties;
52import android.provider.LiveFolders;
53import android.text.Selection;
54import android.text.SpannableStringBuilder;
55import android.text.TextUtils;
56import android.text.method.TextKeyListener;
57import android.util.Log;
58import android.view.Display;
59import android.view.HapticFeedbackConstants;
60import android.view.KeyEvent;
61import android.view.LayoutInflater;
62import android.view.Menu;
63import android.view.MenuItem;
64import android.view.View;
65import android.view.ViewGroup;
66import android.view.View.OnLongClickListener;
67import android.view.inputmethod.InputMethodManager;
68import android.widget.EditText;
69import android.widget.TextView;
70import android.widget.Toast;
71import android.widget.ImageView;
72import android.widget.PopupWindow;
73import android.widget.LinearLayout;
74import android.appwidget.AppWidgetManager;
75import android.appwidget.AppWidgetProviderInfo;
76
77import java.util.ArrayList;
78import java.util.HashMap;
79import java.io.DataOutputStream;
80import java.io.FileNotFoundException;
81import java.io.IOException;
82import java.io.DataInputStream;
83
84/**
85 * Default launcher application.
86 */
87public final class Launcher extends Activity
88        implements View.OnClickListener, OnLongClickListener, LauncherModel.Callbacks {
89    static final String TAG = "Launcher";
90    static final boolean LOGD = false;
91
92    static final boolean PROFILE_STARTUP = false;
93    static final boolean PROFILE_ROTATE = false;
94    static final boolean DEBUG_USER_INTERFACE = false;
95
96    private static final int WALLPAPER_SCREENS_SPAN = 2;
97
98    private static final int MENU_GROUP_ADD = 1;
99    private static final int MENU_ADD = Menu.FIRST + 1;
100    private static final int MENU_WALLPAPER_SETTINGS = MENU_ADD + 1;
101    private static final int MENU_SEARCH = MENU_WALLPAPER_SETTINGS + 1;
102    private static final int MENU_NOTIFICATIONS = MENU_SEARCH + 1;
103    private static final int MENU_SETTINGS = MENU_NOTIFICATIONS + 1;
104
105    private static final int REQUEST_CREATE_SHORTCUT = 1;
106    private static final int REQUEST_CREATE_LIVE_FOLDER = 4;
107    private static final int REQUEST_CREATE_APPWIDGET = 5;
108    private static final int REQUEST_PICK_APPLICATION = 6;
109    private static final int REQUEST_PICK_SHORTCUT = 7;
110    private static final int REQUEST_PICK_LIVE_FOLDER = 8;
111    private static final int REQUEST_PICK_APPWIDGET = 9;
112    private static final int REQUEST_PICK_WALLPAPER = 10;
113
114    static final String EXTRA_SHORTCUT_DUPLICATE = "duplicate";
115
116    static final String EXTRA_CUSTOM_WIDGET = "custom_widget";
117    static final String SEARCH_WIDGET = "search_widget";
118
119    static final int SCREEN_COUNT = 5;
120    static final int DEFAULT_SCREEN = 2;
121    static final int NUMBER_CELLS_X = 4;
122    static final int NUMBER_CELLS_Y = 4;
123
124    static final int DIALOG_CREATE_SHORTCUT = 1;
125    static final int DIALOG_RENAME_FOLDER = 2;
126
127    private static final String PREFERENCES = "launcher.preferences";
128
129    // Type: int
130    private static final String RUNTIME_STATE_CURRENT_SCREEN = "launcher.current_screen";
131    // Type: boolean
132    private static final String RUNTIME_STATE_ALL_APPS_FOLDER = "launcher.all_apps_folder";
133    // Type: long
134    private static final String RUNTIME_STATE_USER_FOLDERS = "launcher.user_folder";
135    // Type: int
136    private static final String RUNTIME_STATE_PENDING_ADD_SCREEN = "launcher.add_screen";
137    // Type: int
138    private static final String RUNTIME_STATE_PENDING_ADD_CELL_X = "launcher.add_cellX";
139    // Type: int
140    private static final String RUNTIME_STATE_PENDING_ADD_CELL_Y = "launcher.add_cellY";
141    // Type: int
142    private static final String RUNTIME_STATE_PENDING_ADD_SPAN_X = "launcher.add_spanX";
143    // Type: int
144    private static final String RUNTIME_STATE_PENDING_ADD_SPAN_Y = "launcher.add_spanY";
145    // Type: int
146    private static final String RUNTIME_STATE_PENDING_ADD_COUNT_X = "launcher.add_countX";
147    // Type: int
148    private static final String RUNTIME_STATE_PENDING_ADD_COUNT_Y = "launcher.add_countY";
149    // Type: int[]
150    private static final String RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS = "launcher.add_occupied_cells";
151    // Type: boolean
152    private static final String RUNTIME_STATE_PENDING_FOLDER_RENAME = "launcher.rename_folder";
153    // Type: long
154    private static final String RUNTIME_STATE_PENDING_FOLDER_RENAME_ID = "launcher.rename_folder_id";
155
156    static final int APPWIDGET_HOST_ID = 1024;
157
158    private static final Object sLock = new Object();
159    private static int sScreen = DEFAULT_SCREEN;
160
161    private final BroadcastReceiver mCloseSystemDialogsReceiver
162            = new CloseSystemDialogsIntentReceiver();
163    private final ContentObserver mWidgetObserver = new AppWidgetResetObserver();
164
165    private LayoutInflater mInflater;
166
167    private DragController mDragController;
168    private Workspace mWorkspace;
169
170    private AppWidgetManager mAppWidgetManager;
171    private LauncherAppWidgetHost mAppWidgetHost;
172
173    private CellLayout.CellInfo mAddItemCellInfo;
174    private CellLayout.CellInfo mMenuAddInfo;
175    private final int[] mCellCoordinates = new int[2];
176    private FolderInfo mFolderInfo;
177
178    private DeleteZone mDeleteZone;
179    private HandleView mHandleView;
180    private AllAppsView mAllAppsGrid;
181
182    private Bundle mSavedState;
183
184    private SpannableStringBuilder mDefaultKeySsb = null;
185
186    private boolean mIsNewIntent;
187
188    private boolean mWorkspaceLoading = true;
189
190    private boolean mRestoring;
191    private boolean mWaitingForResult;
192
193    private Bundle mSavedInstanceState;
194
195    private LauncherModel mModel;
196
197    private ArrayList<ItemInfo> mDesktopItems = new ArrayList<ItemInfo>();
198    private static HashMap<Long, FolderInfo> mFolders = new HashMap<Long, FolderInfo>();
199
200    private ImageView mPreviousView;
201    private ImageView mNextView;
202
203    @Override
204    protected void onCreate(Bundle savedInstanceState) {
205        super.onCreate(savedInstanceState);
206
207        mModel = ((LauncherApplication)getApplication()).setLauncher(this);
208        mDragController = new DragController(this);
209        mInflater = getLayoutInflater();
210
211        IntentFilter filter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
212        registerReceiver(mCloseSystemDialogsReceiver, filter);
213
214        mAppWidgetManager = AppWidgetManager.getInstance(this);
215        mAppWidgetHost = new LauncherAppWidgetHost(this, APPWIDGET_HOST_ID);
216        mAppWidgetHost.startListening();
217
218        if (PROFILE_STARTUP) {
219            android.os.Debug.startMethodTracing("/sdcard/launcher");
220        }
221
222        checkForLocaleChange();
223        setWallpaperDimension();
224
225        setContentView(R.layout.launcher);
226        setupViews();
227
228        registerContentObservers();
229
230        lockAllApps();
231
232        mSavedState = savedInstanceState;
233        restoreState(mSavedState);
234
235        if (PROFILE_STARTUP) {
236            android.os.Debug.stopMethodTracing();
237        }
238
239        // We have a new AllAppsView, we need to re-bind everything, and it could have
240        // changed in our absence.
241        mModel.setAllAppsDirty();
242        mModel.setWorkspaceDirty();
243
244        if (!mRestoring) {
245            mModel.startLoader(this, true);
246        }
247
248        // For handling default keys
249        mDefaultKeySsb = new SpannableStringBuilder();
250        Selection.setSelection(mDefaultKeySsb, 0);
251    }
252
253    private void checkForLocaleChange() {
254        final LocaleConfiguration localeConfiguration = new LocaleConfiguration();
255        readConfiguration(this, localeConfiguration);
256
257        final Configuration configuration = getResources().getConfiguration();
258
259        final String previousLocale = localeConfiguration.locale;
260        final String locale = configuration.locale.toString();
261
262        final int previousMcc = localeConfiguration.mcc;
263        final int mcc = configuration.mcc;
264
265        final int previousMnc = localeConfiguration.mnc;
266        final int mnc = configuration.mnc;
267
268        boolean localeChanged = !locale.equals(previousLocale) || mcc != previousMcc || mnc != previousMnc;
269
270        if (localeChanged) {
271            localeConfiguration.locale = locale;
272            localeConfiguration.mcc = mcc;
273            localeConfiguration.mnc = mnc;
274
275            writeConfiguration(this, localeConfiguration);
276            AppInfoCache.flush();
277        }
278    }
279
280    private static class LocaleConfiguration {
281        public String locale;
282        public int mcc = -1;
283        public int mnc = -1;
284    }
285
286    private static void readConfiguration(Context context, LocaleConfiguration configuration) {
287        DataInputStream in = null;
288        try {
289            in = new DataInputStream(context.openFileInput(PREFERENCES));
290            configuration.locale = in.readUTF();
291            configuration.mcc = in.readInt();
292            configuration.mnc = in.readInt();
293        } catch (FileNotFoundException e) {
294            // Ignore
295        } catch (IOException e) {
296            // Ignore
297        } finally {
298            if (in != null) {
299                try {
300                    in.close();
301                } catch (IOException e) {
302                    // Ignore
303                }
304            }
305        }
306    }
307
308    private static void writeConfiguration(Context context, LocaleConfiguration configuration) {
309        DataOutputStream out = null;
310        try {
311            out = new DataOutputStream(context.openFileOutput(PREFERENCES, MODE_PRIVATE));
312            out.writeUTF(configuration.locale);
313            out.writeInt(configuration.mcc);
314            out.writeInt(configuration.mnc);
315            out.flush();
316        } catch (FileNotFoundException e) {
317            // Ignore
318        } catch (IOException e) {
319            //noinspection ResultOfMethodCallIgnored
320            context.getFileStreamPath(PREFERENCES).delete();
321        } finally {
322            if (out != null) {
323                try {
324                    out.close();
325                } catch (IOException e) {
326                    // Ignore
327                }
328            }
329        }
330    }
331
332    static int getScreen() {
333        synchronized (sLock) {
334            return sScreen;
335        }
336    }
337
338    static void setScreen(int screen) {
339        synchronized (sLock) {
340            sScreen = screen;
341        }
342    }
343
344    private void setWallpaperDimension() {
345        WallpaperManager wpm = (WallpaperManager)getSystemService(WALLPAPER_SERVICE);
346
347        Display display = getWindowManager().getDefaultDisplay();
348        boolean isPortrait = display.getWidth() < display.getHeight();
349
350        final int width = isPortrait ? display.getWidth() : display.getHeight();
351        final int height = isPortrait ? display.getHeight() : display.getWidth();
352        wpm.suggestDesiredDimensions(width * WALLPAPER_SCREENS_SPAN, height);
353    }
354
355    @Override
356    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
357        mWaitingForResult = false;
358
359        // The pattern used here is that a user PICKs a specific application,
360        // which, depending on the target, might need to CREATE the actual target.
361
362        // For example, the user would PICK_SHORTCUT for "Music playlist", and we
363        // launch over to the Music app to actually CREATE_SHORTCUT.
364
365        if (resultCode == RESULT_OK && mAddItemCellInfo != null) {
366            switch (requestCode) {
367                case REQUEST_PICK_APPLICATION:
368                    completeAddApplication(this, data, mAddItemCellInfo);
369                    break;
370                case REQUEST_PICK_SHORTCUT:
371                    processShortcut(data, REQUEST_PICK_APPLICATION, REQUEST_CREATE_SHORTCUT);
372                    break;
373                case REQUEST_CREATE_SHORTCUT:
374                    completeAddShortcut(data, mAddItemCellInfo);
375                    break;
376                case REQUEST_PICK_LIVE_FOLDER:
377                    addLiveFolder(data);
378                    break;
379                case REQUEST_CREATE_LIVE_FOLDER:
380                    completeAddLiveFolder(data, mAddItemCellInfo);
381                    break;
382                case REQUEST_PICK_APPWIDGET:
383                    addAppWidget(data);
384                    break;
385                case REQUEST_CREATE_APPWIDGET:
386                    completeAddAppWidget(data, mAddItemCellInfo);
387                    break;
388                case REQUEST_PICK_WALLPAPER:
389                    // We just wanted the activity result here so we can clear mWaitingForResult
390                    break;
391            }
392        } else if ((requestCode == REQUEST_PICK_APPWIDGET ||
393                requestCode == REQUEST_CREATE_APPWIDGET) && resultCode == RESULT_CANCELED &&
394                data != null) {
395            // Clean up the appWidgetId if we canceled
396            int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
397            if (appWidgetId != -1) {
398                mAppWidgetHost.deleteAppWidgetId(appWidgetId);
399            }
400        }
401    }
402
403    @Override
404    protected void onResume() {
405        super.onResume();
406
407        if (mRestoring) {
408            mWorkspaceLoading = true;
409            mModel.startLoader(this, true);
410            mRestoring = false;
411        }
412
413        // If this was a new intent (i.e., the mIsNewIntent flag got set to true by
414        // onNewIntent), then close the search dialog if needed, because it probably
415        // came from the user pressing 'home' (rather than, for example, pressing 'back').
416        if (mIsNewIntent) {
417            // Post to a handler so that this happens after the search dialog tries to open
418            // itself again.
419            mWorkspace.post(new Runnable() {
420                public void run() {
421                    stopSearch();
422                }
423            });
424        }
425
426        mIsNewIntent = false;
427    }
428
429    @Override
430    protected void onPause() {
431        super.onPause();
432        dismissPreview(mPreviousView);
433        dismissPreview(mNextView);
434        mDragController.cancelDrag();
435    }
436
437    @Override
438    public Object onRetainNonConfigurationInstance() {
439        // Flag the loader to stop early before switching
440        mModel.stopLoader();
441
442        if (PROFILE_ROTATE) {
443            android.os.Debug.startMethodTracing("/sdcard/launcher-rotate");
444        }
445        return null;
446    }
447
448    private boolean acceptFilter() {
449        final InputMethodManager inputManager = (InputMethodManager)
450                getSystemService(Context.INPUT_METHOD_SERVICE);
451        return !inputManager.isFullscreenMode();
452    }
453
454    @Override
455    public boolean onKeyDown(int keyCode, KeyEvent event) {
456        boolean handled = super.onKeyDown(keyCode, event);
457        if (!handled && acceptFilter() && keyCode != KeyEvent.KEYCODE_ENTER) {
458            boolean gotKey = TextKeyListener.getInstance().onKeyDown(mWorkspace, mDefaultKeySsb,
459                    keyCode, event);
460            if (gotKey && mDefaultKeySsb != null && mDefaultKeySsb.length() > 0) {
461                // something usable has been typed - start a search
462                // the typed text will be retrieved and cleared by
463                // showSearchDialog()
464                // If there are multiple keystrokes before the search dialog takes focus,
465                // onSearchRequested() will be called for every keystroke,
466                // but it is idempotent, so it's fine.
467                return onSearchRequested();
468            }
469        }
470
471        return handled;
472    }
473
474    private String getTypedText() {
475        return mDefaultKeySsb.toString();
476    }
477
478    private void clearTypedText() {
479        mDefaultKeySsb.clear();
480        mDefaultKeySsb.clearSpans();
481        Selection.setSelection(mDefaultKeySsb, 0);
482    }
483
484    /**
485     * Restores the previous state, if it exists.
486     *
487     * @param savedState The previous state.
488     */
489    private void restoreState(Bundle savedState) {
490        if (savedState == null) {
491            return;
492        }
493
494        final boolean allApps = savedState.getBoolean(RUNTIME_STATE_ALL_APPS_FOLDER, false);
495        if (allApps) {
496            showAllApps(false);
497        }
498
499        final int currentScreen = savedState.getInt(RUNTIME_STATE_CURRENT_SCREEN, -1);
500        if (currentScreen > -1) {
501            mWorkspace.setCurrentScreen(currentScreen);
502        }
503
504        final int addScreen = savedState.getInt(RUNTIME_STATE_PENDING_ADD_SCREEN, -1);
505        if (addScreen > -1) {
506            mAddItemCellInfo = new CellLayout.CellInfo();
507            final CellLayout.CellInfo addItemCellInfo = mAddItemCellInfo;
508            addItemCellInfo.valid = true;
509            addItemCellInfo.screen = addScreen;
510            addItemCellInfo.cellX = savedState.getInt(RUNTIME_STATE_PENDING_ADD_CELL_X);
511            addItemCellInfo.cellY = savedState.getInt(RUNTIME_STATE_PENDING_ADD_CELL_Y);
512            addItemCellInfo.spanX = savedState.getInt(RUNTIME_STATE_PENDING_ADD_SPAN_X);
513            addItemCellInfo.spanY = savedState.getInt(RUNTIME_STATE_PENDING_ADD_SPAN_Y);
514            addItemCellInfo.findVacantCellsFromOccupied(
515                    savedState.getBooleanArray(RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS),
516                    savedState.getInt(RUNTIME_STATE_PENDING_ADD_COUNT_X),
517                    savedState.getInt(RUNTIME_STATE_PENDING_ADD_COUNT_Y));
518            mRestoring = true;
519        }
520
521        boolean renameFolder = savedState.getBoolean(RUNTIME_STATE_PENDING_FOLDER_RENAME, false);
522        if (renameFolder) {
523            long id = savedState.getLong(RUNTIME_STATE_PENDING_FOLDER_RENAME_ID);
524            mFolderInfo = mModel.getFolderById(this, mFolders, id);
525            mRestoring = true;
526        }
527    }
528
529    /**
530     * Finds all the views we need and configure them properly.
531     */
532    private void setupViews() {
533        DragController dragController = mDragController;
534
535        DragLayer dragLayer = (DragLayer) findViewById(R.id.drag_layer);
536        dragLayer.setDragController(dragController);
537
538        mAllAppsGrid = (AllAppsView)dragLayer.findViewById(R.id.all_apps_view);
539        mAllAppsGrid.setLauncher(this);
540        mAllAppsGrid.setDragController(dragController);
541        mAllAppsGrid.setWillNotDraw(false); // We don't want a hole punched in our window.
542        // Manage focusability manually since this thing is always visible
543        mAllAppsGrid.setFocusable(false);
544
545        mWorkspace = (Workspace) dragLayer.findViewById(R.id.workspace);
546        final Workspace workspace = mWorkspace;
547
548        DeleteZone deleteZone = (DeleteZone) dragLayer.findViewById(R.id.delete_zone);
549        mDeleteZone = deleteZone;
550
551        mHandleView = (HandleView) findViewById(R.id.all_apps_button);
552        mHandleView.setLauncher(this);
553        mHandleView.setOnClickListener(this);
554
555        mPreviousView = (ImageView) dragLayer.findViewById(R.id.previous_screen);
556        mNextView = (ImageView) dragLayer.findViewById(R.id.next_screen);
557
558        Drawable previous = mPreviousView.getDrawable();
559        Drawable next = mNextView.getDrawable();
560        mWorkspace.setIndicators(previous, next);
561
562        mPreviousView.setHapticFeedbackEnabled(false);
563        mPreviousView.setOnLongClickListener(this);
564        mNextView.setHapticFeedbackEnabled(false);
565        mNextView.setOnLongClickListener(this);
566
567        workspace.setOnLongClickListener(this);
568        workspace.setDragController(dragController);
569        workspace.setLauncher(this);
570
571        deleteZone.setLauncher(this);
572        deleteZone.setDragController(dragController);
573        deleteZone.setHandle(mHandleView);
574
575        dragController.setDragScoller(workspace);
576        dragController.setDragListener(deleteZone);
577        dragController.setScrollView(dragLayer);
578
579        // The order here is bottom to top.
580        dragController.addDropTarget(workspace);
581        dragController.addDropTarget(deleteZone);
582    }
583
584    @SuppressWarnings({"UnusedDeclaration"})
585    public void previousScreen(View v) {
586        if (!isAllAppsVisible()) {
587            mWorkspace.scrollLeft();
588        }
589    }
590
591    @SuppressWarnings({"UnusedDeclaration"})
592    public void nextScreen(View v) {
593        if (!isAllAppsVisible()) {
594            mWorkspace.scrollRight();
595        }
596    }
597
598    /**
599     * Creates a view representing a shortcut.
600     *
601     * @param info The data structure describing the shortcut.
602     *
603     * @return A View inflated from R.layout.application.
604     */
605    View createShortcut(ApplicationInfo info) {
606        return createShortcut(R.layout.application,
607                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentScreen()), info);
608    }
609
610    /**
611     * Creates a view representing a shortcut inflated from the specified resource.
612     *
613     * @param layoutResId The id of the XML layout used to create the shortcut.
614     * @param parent The group the shortcut belongs to.
615     * @param info The data structure describing the shortcut.
616     *
617     * @return A View inflated from layoutResId.
618     */
619    View createShortcut(int layoutResId, ViewGroup parent, ApplicationInfo info) {
620        TextView favorite = (TextView) mInflater.inflate(layoutResId, parent, false);
621
622        if (info.icon == null) {
623            info.icon = AppInfoCache.getIconDrawable(getPackageManager(), info);
624        }
625        if (!info.filtered) {
626            info.icon = Utilities.createIconThumbnail(info.icon, this);
627            info.filtered = true;
628        }
629
630        favorite.setCompoundDrawablesWithIntrinsicBounds(null, info.icon, null, null);
631        favorite.setText(info.title);
632        favorite.setTag(info);
633        favorite.setOnClickListener(this);
634
635        return favorite;
636    }
637
638    /**
639     * Add an application shortcut to the workspace.
640     *
641     * @param data The intent describing the application.
642     * @param cellInfo The position on screen where to create the shortcut.
643     */
644    void completeAddApplication(Context context, Intent data, CellLayout.CellInfo cellInfo) {
645        cellInfo.screen = mWorkspace.getCurrentScreen();
646        if (!findSingleSlot(cellInfo)) return;
647
648        final ApplicationInfo info = infoFromApplicationIntent(context, data);
649        if (info != null) {
650            mWorkspace.addApplicationShortcut(info, cellInfo, isWorkspaceLocked());
651        }
652    }
653
654    private static ApplicationInfo infoFromApplicationIntent(Context context, Intent data) {
655        ComponentName component = data.getComponent();
656        PackageManager packageManager = context.getPackageManager();
657        ActivityInfo activityInfo = null;
658        try {
659            activityInfo = packageManager.getActivityInfo(component, 0 /* no flags */);
660        } catch (NameNotFoundException e) {
661            Log.e(TAG, "Couldn't find ActivityInfo for selected application", e);
662        }
663
664        if (activityInfo != null) {
665            ApplicationInfo itemInfo = new ApplicationInfo();
666
667            itemInfo.title = activityInfo.loadLabel(packageManager);
668            if (itemInfo.title == null) {
669                itemInfo.title = activityInfo.name;
670            }
671
672            itemInfo.setActivity(component, Intent.FLAG_ACTIVITY_NEW_TASK |
673                    Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
674            itemInfo.icon = activityInfo.loadIcon(packageManager);
675            itemInfo.container = ItemInfo.NO_ID;
676
677            return itemInfo;
678        }
679
680        return null;
681    }
682
683    /**
684     * Add a shortcut to the workspace.
685     *
686     * @param data The intent describing the shortcut.
687     * @param cellInfo The position on screen where to create the shortcut.
688     */
689    private void completeAddShortcut(Intent data, CellLayout.CellInfo cellInfo) {
690        cellInfo.screen = mWorkspace.getCurrentScreen();
691        if (!findSingleSlot(cellInfo)) return;
692
693        final ApplicationInfo info = addShortcut(this, data, cellInfo, false);
694
695        if (!mRestoring) {
696            final View view = createShortcut(info);
697            mWorkspace.addInCurrentScreen(view, cellInfo.cellX, cellInfo.cellY, 1, 1,
698                    isWorkspaceLocked());
699        }
700    }
701
702
703    /**
704     * Add a widget to the workspace.
705     *
706     * @param data The intent describing the appWidgetId.
707     * @param cellInfo The position on screen where to create the widget.
708     */
709    private void completeAddAppWidget(Intent data, CellLayout.CellInfo cellInfo) {
710        Bundle extras = data.getExtras();
711        int appWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
712
713        if (LOGD) Log.d(TAG, "dumping extras content=" + extras.toString());
714
715        AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
716
717        // Calculate the grid spans needed to fit this widget
718        CellLayout layout = (CellLayout) mWorkspace.getChildAt(cellInfo.screen);
719        int[] spans = layout.rectToCell(appWidgetInfo.minWidth, appWidgetInfo.minHeight);
720
721        // Try finding open space on Launcher screen
722        final int[] xy = mCellCoordinates;
723        if (!findSlot(cellInfo, xy, spans[0], spans[1])) {
724            if (appWidgetId != -1) mAppWidgetHost.deleteAppWidgetId(appWidgetId);
725            return;
726        }
727
728        // Build Launcher-specific widget info and save to database
729        LauncherAppWidgetInfo launcherInfo = new LauncherAppWidgetInfo(appWidgetId);
730        launcherInfo.spanX = spans[0];
731        launcherInfo.spanY = spans[1];
732
733        LauncherModel.addItemToDatabase(this, launcherInfo,
734                LauncherSettings.Favorites.CONTAINER_DESKTOP,
735                mWorkspace.getCurrentScreen(), xy[0], xy[1], false);
736
737        if (!mRestoring) {
738            mDesktopItems.add(launcherInfo);
739
740            // Perform actual inflation because we're live
741            launcherInfo.hostView = mAppWidgetHost.createView(this, appWidgetId, appWidgetInfo);
742
743            launcherInfo.hostView.setAppWidget(appWidgetId, appWidgetInfo);
744            launcherInfo.hostView.setTag(launcherInfo);
745
746            mWorkspace.addInCurrentScreen(launcherInfo.hostView, xy[0], xy[1],
747                    launcherInfo.spanX, launcherInfo.spanY, isWorkspaceLocked());
748        }
749    }
750
751    public void removeAppWidget(LauncherAppWidgetInfo launcherInfo) {
752        mDesktopItems.remove(launcherInfo);
753        launcherInfo.hostView = null;
754    }
755
756    public LauncherAppWidgetHost getAppWidgetHost() {
757        return mAppWidgetHost;
758    }
759
760    static ApplicationInfo addShortcut(Context context, Intent data,
761            CellLayout.CellInfo cellInfo, boolean notify) {
762
763        final ApplicationInfo info = infoFromShortcutIntent(context, data);
764        LauncherModel.addItemToDatabase(context, info, LauncherSettings.Favorites.CONTAINER_DESKTOP,
765                cellInfo.screen, cellInfo.cellX, cellInfo.cellY, notify);
766
767        return info;
768    }
769
770    private static ApplicationInfo infoFromShortcutIntent(Context context, Intent data) {
771        Intent intent = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_INTENT);
772        String name = data.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
773        Bitmap bitmap = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_ICON);
774
775        Drawable icon = null;
776        boolean filtered = false;
777        boolean customIcon = false;
778        ShortcutIconResource iconResource = null;
779
780        if (bitmap != null) {
781            icon = new FastBitmapDrawable(Utilities.createBitmapThumbnail(bitmap, context));
782            filtered = true;
783            customIcon = true;
784        } else {
785            Parcelable extra = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE);
786            if (extra != null && extra instanceof ShortcutIconResource) {
787                try {
788                    iconResource = (ShortcutIconResource) extra;
789                    final PackageManager packageManager = context.getPackageManager();
790                    Resources resources = packageManager.getResourcesForApplication(
791                            iconResource.packageName);
792                    final int id = resources.getIdentifier(iconResource.resourceName, null, null);
793                    icon = resources.getDrawable(id);
794                } catch (Exception e) {
795                    Log.w(TAG, "Could not load shortcut icon: " + extra);
796                }
797            }
798        }
799
800        if (icon == null) {
801            icon = context.getPackageManager().getDefaultActivityIcon();
802        }
803
804        final ApplicationInfo info = new ApplicationInfo();
805        info.icon = icon;
806        info.filtered = filtered;
807        info.title = name;
808        info.intent = intent;
809        info.customIcon = customIcon;
810        info.iconResource = iconResource;
811
812        return info;
813    }
814
815    void closeSystemDialogs() {
816        closeAllApps(true);
817        getWindow().closeAllPanels();
818
819        try {
820            dismissDialog(DIALOG_CREATE_SHORTCUT);
821            // Unlock the workspace if the dialog was showing
822        } catch (Exception e) {
823            // An exception is thrown if the dialog is not visible, which is fine
824        }
825
826        try {
827            dismissDialog(DIALOG_RENAME_FOLDER);
828            // Unlock the workspace if the dialog was showing
829        } catch (Exception e) {
830            // An exception is thrown if the dialog is not visible, which is fine
831        }
832
833        // Whatever we were doing is hereby canceled.
834        mWaitingForResult = false;
835    }
836
837    @Override
838    protected void onNewIntent(Intent intent) {
839        super.onNewIntent(intent);
840
841        // Close the menu
842        if (Intent.ACTION_MAIN.equals(intent.getAction())) {
843            // also will cancel mWaitingForResult.
844            closeSystemDialogs();
845
846            // Set this flag so that onResume knows to close the search dialog if it's open,
847            // because this was a new intent (thus a press of 'home' or some such) rather than
848            // for example onResume being called when the user pressed the 'back' button.
849            mIsNewIntent = true;
850
851            boolean alreadyOnHome = ((intent.getFlags() & Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT)
852                        != Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT);
853            boolean allAppsVisible = isAllAppsVisible();
854            if (!mWorkspace.isDefaultScreenShowing()) {
855                mWorkspace.moveToDefaultScreen(alreadyOnHome && !allAppsVisible);
856            }
857            closeAllApps(alreadyOnHome && allAppsVisible);
858
859            final View v = getWindow().peekDecorView();
860            if (v != null && v.getWindowToken() != null) {
861                InputMethodManager imm = (InputMethodManager)getSystemService(
862                        INPUT_METHOD_SERVICE);
863                imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
864            }
865        }
866    }
867
868    @Override
869    protected void onRestoreInstanceState(Bundle savedInstanceState) {
870        // Do not call super here
871        mSavedInstanceState = savedInstanceState;
872    }
873
874    @Override
875    protected void onSaveInstanceState(Bundle outState) {
876        outState.putInt(RUNTIME_STATE_CURRENT_SCREEN, mWorkspace.getCurrentScreen());
877
878        final ArrayList<Folder> folders = mWorkspace.getOpenFolders();
879        if (folders.size() > 0) {
880            final int count = folders.size();
881            long[] ids = new long[count];
882            for (int i = 0; i < count; i++) {
883                final FolderInfo info = folders.get(i).getInfo();
884                ids[i] = info.id;
885            }
886            outState.putLongArray(RUNTIME_STATE_USER_FOLDERS, ids);
887        } else {
888            super.onSaveInstanceState(outState);
889        }
890
891        // TODO should not do this if the drawer is currently closing.
892        if (isAllAppsVisible()) {
893            outState.putBoolean(RUNTIME_STATE_ALL_APPS_FOLDER, true);
894        }
895
896        if (mAddItemCellInfo != null && mAddItemCellInfo.valid && mWaitingForResult) {
897            final CellLayout.CellInfo addItemCellInfo = mAddItemCellInfo;
898            final CellLayout layout = (CellLayout) mWorkspace.getChildAt(addItemCellInfo.screen);
899
900            outState.putInt(RUNTIME_STATE_PENDING_ADD_SCREEN, addItemCellInfo.screen);
901            outState.putInt(RUNTIME_STATE_PENDING_ADD_CELL_X, addItemCellInfo.cellX);
902            outState.putInt(RUNTIME_STATE_PENDING_ADD_CELL_Y, addItemCellInfo.cellY);
903            outState.putInt(RUNTIME_STATE_PENDING_ADD_SPAN_X, addItemCellInfo.spanX);
904            outState.putInt(RUNTIME_STATE_PENDING_ADD_SPAN_Y, addItemCellInfo.spanY);
905            outState.putInt(RUNTIME_STATE_PENDING_ADD_COUNT_X, layout.getCountX());
906            outState.putInt(RUNTIME_STATE_PENDING_ADD_COUNT_Y, layout.getCountY());
907            outState.putBooleanArray(RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS,
908                   layout.getOccupiedCells());
909        }
910
911        if (mFolderInfo != null && mWaitingForResult) {
912            outState.putBoolean(RUNTIME_STATE_PENDING_FOLDER_RENAME, true);
913            outState.putLong(RUNTIME_STATE_PENDING_FOLDER_RENAME_ID, mFolderInfo.id);
914        }
915    }
916
917    @Override
918    public void onDestroy() {
919        super.onDestroy();
920
921        try {
922            mAppWidgetHost.stopListening();
923        } catch (NullPointerException ex) {
924            Log.w(TAG, "problem while stopping AppWidgetHost during Launcher destruction", ex);
925        }
926
927        TextKeyListener.getInstance().release();
928
929        mModel.stopLoader();
930
931        unbindDesktopItems();
932        AppInfoCache.unbindDrawables();
933
934        getContentResolver().unregisterContentObserver(mWidgetObserver);
935
936        dismissPreview(mPreviousView);
937        dismissPreview(mNextView);
938
939        unregisterReceiver(mCloseSystemDialogsReceiver);
940    }
941
942    @Override
943    public void startActivityForResult(Intent intent, int requestCode) {
944        if (requestCode >= 0) mWaitingForResult = true;
945        super.startActivityForResult(intent, requestCode);
946    }
947
948    @Override
949    public void startSearch(String initialQuery, boolean selectInitialQuery,
950            Bundle appSearchData, boolean globalSearch) {
951
952        closeAllApps(true);
953
954        // Slide the search widget to the top, if it's on the current screen,
955        // otherwise show the search dialog immediately.
956        Search searchWidget = mWorkspace.findSearchWidgetOnCurrentScreen();
957        if (searchWidget == null) {
958            showSearchDialog(initialQuery, selectInitialQuery, appSearchData, globalSearch);
959        } else {
960            searchWidget.startSearch(initialQuery, selectInitialQuery, appSearchData, globalSearch);
961            // show the currently typed text in the search widget while sliding
962            searchWidget.setQuery(getTypedText());
963        }
964    }
965
966    /**
967     * Show the search dialog immediately, without changing the search widget.
968     *
969     * @see Activity#startSearch(String, boolean, android.os.Bundle, boolean)
970     */
971    void showSearchDialog(String initialQuery, boolean selectInitialQuery,
972            Bundle appSearchData, boolean globalSearch) {
973
974        if (initialQuery == null) {
975            // Use any text typed in the launcher as the initial query
976            initialQuery = getTypedText();
977            clearTypedText();
978        }
979        if (appSearchData == null) {
980            appSearchData = new Bundle();
981            appSearchData.putString(SearchManager.SOURCE, "launcher-search");
982        }
983
984        final SearchManager searchManager =
985                (SearchManager) getSystemService(Context.SEARCH_SERVICE);
986
987        final Search searchWidget = mWorkspace.findSearchWidgetOnCurrentScreen();
988        if (searchWidget != null) {
989            // This gets called when the user leaves the search dialog to go back to
990            // the Launcher.
991            searchManager.setOnCancelListener(new SearchManager.OnCancelListener() {
992                public void onCancel() {
993                    searchManager.setOnCancelListener(null);
994                    stopSearch();
995                }
996            });
997        }
998
999        searchManager.startSearch(initialQuery, selectInitialQuery, getComponentName(),
1000            appSearchData, globalSearch);
1001    }
1002
1003    /**
1004     * Cancel search dialog if it is open.
1005     */
1006    void stopSearch() {
1007        // Close search dialog
1008        SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
1009        searchManager.stopSearch();
1010        // Restore search widget to its normal position
1011        Search searchWidget = mWorkspace.findSearchWidgetOnCurrentScreen();
1012        if (searchWidget != null) {
1013            searchWidget.stopSearch(false);
1014        }
1015    }
1016
1017    @Override
1018    public boolean onCreateOptionsMenu(Menu menu) {
1019        if (isWorkspaceLocked()) {
1020            return false;
1021        }
1022
1023        super.onCreateOptionsMenu(menu);
1024        menu.add(MENU_GROUP_ADD, MENU_ADD, 0, R.string.menu_add)
1025                .setIcon(android.R.drawable.ic_menu_add)
1026                .setAlphabeticShortcut('A');
1027        menu.add(0, MENU_WALLPAPER_SETTINGS, 0, R.string.menu_wallpaper)
1028                 .setIcon(android.R.drawable.ic_menu_gallery)
1029                 .setAlphabeticShortcut('W');
1030        menu.add(0, MENU_SEARCH, 0, R.string.menu_search)
1031                .setIcon(android.R.drawable.ic_search_category_default)
1032                .setAlphabeticShortcut(SearchManager.MENU_KEY);
1033        menu.add(0, MENU_NOTIFICATIONS, 0, R.string.menu_notifications)
1034                .setIcon(com.android.internal.R.drawable.ic_menu_notifications)
1035                .setAlphabeticShortcut('N');
1036
1037        final Intent settings = new Intent(android.provider.Settings.ACTION_SETTINGS);
1038        settings.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
1039                Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
1040
1041        menu.add(0, MENU_SETTINGS, 0, R.string.menu_settings)
1042                .setIcon(android.R.drawable.ic_menu_preferences).setAlphabeticShortcut('P')
1043                .setIntent(settings);
1044
1045        return true;
1046    }
1047
1048    @Override
1049    public boolean onPrepareOptionsMenu(Menu menu) {
1050        super.onPrepareOptionsMenu(menu);
1051
1052        mMenuAddInfo = mWorkspace.findAllVacantCells(null);
1053        menu.setGroupEnabled(MENU_GROUP_ADD, mMenuAddInfo != null && mMenuAddInfo.valid);
1054
1055        return true;
1056    }
1057
1058    @Override
1059    public boolean onOptionsItemSelected(MenuItem item) {
1060        switch (item.getItemId()) {
1061            case MENU_ADD:
1062                addItems();
1063                return true;
1064            case MENU_WALLPAPER_SETTINGS:
1065                startWallpaper();
1066                return true;
1067            case MENU_SEARCH:
1068                onSearchRequested();
1069                return true;
1070            case MENU_NOTIFICATIONS:
1071                showNotifications();
1072                return true;
1073        }
1074
1075        return super.onOptionsItemSelected(item);
1076    }
1077
1078    /**
1079     * Indicates that we want global search for this activity by setting the globalSearch
1080     * argument for {@link #startSearch} to true.
1081     */
1082
1083    @Override
1084    public boolean onSearchRequested() {
1085        startSearch(null, false, null, true);
1086        return true;
1087    }
1088
1089    public boolean isWorkspaceLocked() {
1090        return mWorkspaceLoading || mWaitingForResult;
1091    }
1092
1093    private void addItems() {
1094        closeAllApps(true);
1095        showAddDialog(mMenuAddInfo);
1096    }
1097
1098    void addAppWidget(Intent data) {
1099        // TODO: catch bad widget exception when sent
1100        int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
1101
1102        String customWidget = data.getStringExtra(EXTRA_CUSTOM_WIDGET);
1103        if (SEARCH_WIDGET.equals(customWidget)) {
1104            // We don't need this any more, since this isn't a real app widget.
1105            mAppWidgetHost.deleteAppWidgetId(appWidgetId);
1106            // add the search widget
1107            addSearch();
1108        } else {
1109            AppWidgetProviderInfo appWidget = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
1110
1111            if (appWidget.configure != null) {
1112                // Launch over to configure widget, if needed
1113                Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_CONFIGURE);
1114                intent.setComponent(appWidget.configure);
1115                intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
1116
1117                startActivityForResult(intent, REQUEST_CREATE_APPWIDGET);
1118            } else {
1119                // Otherwise just add it
1120                onActivityResult(REQUEST_CREATE_APPWIDGET, Activity.RESULT_OK, data);
1121            }
1122        }
1123    }
1124
1125    void addSearch() {
1126        final Widget info = Widget.makeSearch();
1127        final CellLayout.CellInfo cellInfo = mAddItemCellInfo;
1128
1129        final int[] xy = mCellCoordinates;
1130        final int spanX = info.spanX;
1131        final int spanY = info.spanY;
1132
1133        if (!findSlot(cellInfo, xy, spanX, spanY)) return;
1134
1135        LauncherModel.addItemToDatabase(this, info, LauncherSettings.Favorites.CONTAINER_DESKTOP,
1136        mWorkspace.getCurrentScreen(), xy[0], xy[1], false);
1137
1138        final View view = mInflater.inflate(info.layoutResource, null);
1139        view.setTag(info);
1140        Search search = (Search) view.findViewById(R.id.widget_search);
1141        search.setLauncher(this);
1142
1143        mWorkspace.addInCurrentScreen(view, xy[0], xy[1], info.spanX, spanY);
1144    }
1145
1146    void processShortcut(Intent intent, int requestCodeApplication, int requestCodeShortcut) {
1147        // Handle case where user selected "Applications"
1148        String applicationName = getResources().getString(R.string.group_applications);
1149        String shortcutName = intent.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
1150
1151        if (applicationName != null && applicationName.equals(shortcutName)) {
1152            Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
1153            mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
1154
1155            Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
1156            pickIntent.putExtra(Intent.EXTRA_INTENT, mainIntent);
1157            startActivityForResult(pickIntent, requestCodeApplication);
1158        } else {
1159            startActivityForResult(intent, requestCodeShortcut);
1160        }
1161    }
1162
1163    void addLiveFolder(Intent intent) {
1164        // Handle case where user selected "Folder"
1165        String folderName = getResources().getString(R.string.group_folder);
1166        String shortcutName = intent.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
1167
1168        if (folderName != null && folderName.equals(shortcutName)) {
1169            addFolder();
1170        } else {
1171            startActivityForResult(intent, REQUEST_CREATE_LIVE_FOLDER);
1172        }
1173    }
1174
1175    void addFolder() {
1176        UserFolderInfo folderInfo = new UserFolderInfo();
1177        folderInfo.title = getText(R.string.folder_name);
1178
1179        CellLayout.CellInfo cellInfo = mAddItemCellInfo;
1180        cellInfo.screen = mWorkspace.getCurrentScreen();
1181        if (!findSingleSlot(cellInfo)) return;
1182
1183        // Update the model
1184        LauncherModel.addItemToDatabase(this, folderInfo,
1185                LauncherSettings.Favorites.CONTAINER_DESKTOP,
1186                mWorkspace.getCurrentScreen(), cellInfo.cellX, cellInfo.cellY, false);
1187        mFolders.put(folderInfo.id, folderInfo);
1188
1189        // Create the view
1190        FolderIcon newFolder = FolderIcon.fromXml(R.layout.folder_icon, this,
1191                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentScreen()), folderInfo);
1192        mWorkspace.addInCurrentScreen(newFolder,
1193                cellInfo.cellX, cellInfo.cellY, 1, 1, isWorkspaceLocked());
1194    }
1195
1196    void removeFolder(FolderInfo folder) {
1197        mFolders.remove(folder.id);
1198    }
1199
1200    private void completeAddLiveFolder(Intent data, CellLayout.CellInfo cellInfo) {
1201        cellInfo.screen = mWorkspace.getCurrentScreen();
1202        if (!findSingleSlot(cellInfo)) return;
1203
1204        final LiveFolderInfo info = addLiveFolder(this, data, cellInfo, false);
1205
1206        if (!mRestoring) {
1207            final View view = LiveFolderIcon.fromXml(R.layout.live_folder_icon, this,
1208                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentScreen()), info);
1209            mWorkspace.addInCurrentScreen(view, cellInfo.cellX, cellInfo.cellY, 1, 1,
1210                    isWorkspaceLocked());
1211        }
1212    }
1213
1214    static LiveFolderInfo addLiveFolder(Context context, Intent data,
1215            CellLayout.CellInfo cellInfo, boolean notify) {
1216
1217        Intent baseIntent = data.getParcelableExtra(LiveFolders.EXTRA_LIVE_FOLDER_BASE_INTENT);
1218        String name = data.getStringExtra(LiveFolders.EXTRA_LIVE_FOLDER_NAME);
1219
1220        Drawable icon = null;
1221        boolean filtered = false;
1222        Intent.ShortcutIconResource iconResource = null;
1223
1224        Parcelable extra = data.getParcelableExtra(LiveFolders.EXTRA_LIVE_FOLDER_ICON);
1225        if (extra != null && extra instanceof Intent.ShortcutIconResource) {
1226            try {
1227                iconResource = (Intent.ShortcutIconResource) extra;
1228                final PackageManager packageManager = context.getPackageManager();
1229                Resources resources = packageManager.getResourcesForApplication(
1230                        iconResource.packageName);
1231                final int id = resources.getIdentifier(iconResource.resourceName, null, null);
1232                icon = resources.getDrawable(id);
1233            } catch (Exception e) {
1234                Log.w(TAG, "Could not load live folder icon: " + extra);
1235            }
1236        }
1237
1238        if (icon == null) {
1239            icon = context.getResources().getDrawable(R.drawable.ic_launcher_folder);
1240        }
1241
1242        final LiveFolderInfo info = new LiveFolderInfo();
1243        info.icon = icon;
1244        info.filtered = filtered;
1245        info.title = name;
1246        info.iconResource = iconResource;
1247        info.uri = data.getData();
1248        info.baseIntent = baseIntent;
1249        info.displayMode = data.getIntExtra(LiveFolders.EXTRA_LIVE_FOLDER_DISPLAY_MODE,
1250                LiveFolders.DISPLAY_MODE_GRID);
1251
1252        LauncherModel.addItemToDatabase(context, info, LauncherSettings.Favorites.CONTAINER_DESKTOP,
1253                cellInfo.screen, cellInfo.cellX, cellInfo.cellY, notify);
1254        mFolders.put(info.id, info);
1255
1256        return info;
1257    }
1258
1259    private boolean findSingleSlot(CellLayout.CellInfo cellInfo) {
1260        final int[] xy = new int[2];
1261        if (findSlot(cellInfo, xy, 1, 1)) {
1262            cellInfo.cellX = xy[0];
1263            cellInfo.cellY = xy[1];
1264            return true;
1265        }
1266        return false;
1267    }
1268
1269    private boolean findSlot(CellLayout.CellInfo cellInfo, int[] xy, int spanX, int spanY) {
1270        if (!cellInfo.findCellForSpan(xy, spanX, spanY)) {
1271            boolean[] occupied = mSavedState != null ?
1272                    mSavedState.getBooleanArray(RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS) : null;
1273            cellInfo = mWorkspace.findAllVacantCells(occupied);
1274            if (!cellInfo.findCellForSpan(xy, spanX, spanY)) {
1275                Toast.makeText(this, getString(R.string.out_of_space), Toast.LENGTH_SHORT).show();
1276                return false;
1277            }
1278        }
1279        return true;
1280    }
1281
1282    private void showNotifications() {
1283        final StatusBarManager statusBar = (StatusBarManager) getSystemService(STATUS_BAR_SERVICE);
1284        if (statusBar != null) {
1285            statusBar.expand();
1286        }
1287    }
1288
1289    private void startWallpaper() {
1290        closeAllApps(true);
1291        final Intent pickWallpaper = new Intent(Intent.ACTION_SET_WALLPAPER);
1292        Intent chooser = Intent.createChooser(pickWallpaper,
1293                getText(R.string.chooser_wallpaper));
1294        // NOTE: Adds a configure option to the chooser if the wallpaper supports it
1295        //       Removed in Eclair MR1
1296//        WallpaperManager wm = (WallpaperManager)
1297//                getSystemService(Context.WALLPAPER_SERVICE);
1298//        WallpaperInfo wi = wm.getWallpaperInfo();
1299//        if (wi != null && wi.getSettingsActivity() != null) {
1300//            LabeledIntent li = new LabeledIntent(getPackageName(),
1301//                    R.string.configure_wallpaper, 0);
1302//            li.setClassName(wi.getPackageName(), wi.getSettingsActivity());
1303//            chooser.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Intent[] { li });
1304//        }
1305        startActivityForResult(chooser, REQUEST_PICK_WALLPAPER);
1306    }
1307
1308    /**
1309     * Registers various content observers. The current implementation registers
1310     * only a favorites observer to keep track of the favorites applications.
1311     */
1312    private void registerContentObservers() {
1313        ContentResolver resolver = getContentResolver();
1314        resolver.registerContentObserver(LauncherProvider.CONTENT_APPWIDGET_RESET_URI,
1315                true, mWidgetObserver);
1316    }
1317
1318    @Override
1319    public boolean dispatchKeyEvent(KeyEvent event) {
1320        if (event.getAction() == KeyEvent.ACTION_DOWN) {
1321            switch (event.getKeyCode()) {
1322                case KeyEvent.KEYCODE_HOME:
1323                    return true;
1324                case KeyEvent.KEYCODE_VOLUME_DOWN:
1325                    if (SystemProperties.getInt("launcher2.dumpstate", 0) != 0) {
1326                        dumpState();
1327                        return true;
1328                    }
1329                    break;
1330            }
1331        } else if (event.getAction() == KeyEvent.ACTION_UP) {
1332            switch (event.getKeyCode()) {
1333                case KeyEvent.KEYCODE_HOME:
1334                    return true;
1335            }
1336        }
1337
1338        return super.dispatchKeyEvent(event);
1339    }
1340
1341    @Override
1342    public void onBackPressed() {
1343        if (isAllAppsVisible()) {
1344            closeAllApps(true);
1345        } else {
1346            closeFolder();
1347        }
1348        dismissPreview(mPreviousView);
1349        dismissPreview(mNextView);
1350    }
1351
1352    private void closeFolder() {
1353        Folder folder = mWorkspace.getOpenFolder();
1354        if (folder != null) {
1355            closeFolder(folder);
1356        }
1357    }
1358
1359    void closeFolder(Folder folder) {
1360        folder.getInfo().opened = false;
1361        ViewGroup parent = (ViewGroup) folder.getParent();
1362        if (parent != null) {
1363            parent.removeView(folder);
1364            if (folder instanceof DropTarget) {
1365                // Live folders aren't DropTargets.
1366                mDragController.removeDropTarget((DropTarget)folder);
1367            }
1368        }
1369        folder.onClose();
1370    }
1371
1372    /**
1373     * Re-listen when widgets are reset.
1374     */
1375    private void onAppWidgetReset() {
1376        mAppWidgetHost.startListening();
1377    }
1378
1379    /**
1380     * Go through the and disconnect any of the callbacks in the drawables and the views or we
1381     * leak the previous Home screen on orientation change.
1382     */
1383    private void unbindDesktopItems() {
1384        for (ItemInfo item: mDesktopItems) {
1385            item.unbind();
1386        }
1387    }
1388
1389    /**
1390     * Launches the intent referred by the clicked shortcut.
1391     *
1392     * @param v The view representing the clicked shortcut.
1393     */
1394    public void onClick(View v) {
1395        Object tag = v.getTag();
1396        if (tag instanceof ApplicationInfo) {
1397            // Open shortcut
1398            final Intent intent = ((ApplicationInfo) tag).intent;
1399            startActivitySafely(intent);
1400        } else if (tag instanceof FolderInfo) {
1401            handleFolderClick((FolderInfo) tag);
1402        } else if (v == mHandleView) {
1403            if (isAllAppsVisible()) {
1404                closeAllApps(true);
1405            } else {
1406                showAllApps(true);
1407            }
1408        }
1409    }
1410
1411    void startActivitySafely(Intent intent) {
1412        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1413        try {
1414            startActivity(intent);
1415        } catch (ActivityNotFoundException e) {
1416            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
1417        } catch (SecurityException e) {
1418            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
1419            Log.e(TAG, "Launcher does not have the permission to launch " + intent +
1420                    ". Make sure to create a MAIN intent-filter for the corresponding activity " +
1421                    "or use the exported attribute for this activity.", e);
1422        }
1423    }
1424
1425    private void handleFolderClick(FolderInfo folderInfo) {
1426        if (!folderInfo.opened) {
1427            // Close any open folder
1428            closeFolder();
1429            // Open the requested folder
1430            openFolder(folderInfo);
1431        } else {
1432            // Find the open folder...
1433            Folder openFolder = mWorkspace.getFolderForTag(folderInfo);
1434            int folderScreen;
1435            if (openFolder != null) {
1436                folderScreen = mWorkspace.getScreenForView(openFolder);
1437                // .. and close it
1438                closeFolder(openFolder);
1439                if (folderScreen != mWorkspace.getCurrentScreen()) {
1440                    // Close any folder open on the current screen
1441                    closeFolder();
1442                    // Pull the folder onto this screen
1443                    openFolder(folderInfo);
1444                }
1445            }
1446        }
1447    }
1448
1449    /**
1450     * Opens the user fodler described by the specified tag. The opening of the folder
1451     * is animated relative to the specified View. If the View is null, no animation
1452     * is played.
1453     *
1454     * @param folderInfo The FolderInfo describing the folder to open.
1455     */
1456    private void openFolder(FolderInfo folderInfo) {
1457        Folder openFolder;
1458
1459        if (folderInfo instanceof UserFolderInfo) {
1460            openFolder = UserFolder.fromXml(this);
1461        } else if (folderInfo instanceof LiveFolderInfo) {
1462            openFolder = com.android.launcher2.LiveFolder.fromXml(this, folderInfo);
1463        } else {
1464            return;
1465        }
1466
1467        openFolder.setDragController(mDragController);
1468        openFolder.setLauncher(this);
1469
1470        openFolder.bind(folderInfo);
1471        folderInfo.opened = true;
1472
1473        mWorkspace.addInScreen(openFolder, folderInfo.screen, 0, 0, 4, 4);
1474        openFolder.onOpen();
1475    }
1476
1477    public boolean onLongClick(View v) {
1478        switch (v.getId()) {
1479            case R.id.previous_screen:
1480                if (!isAllAppsVisible()) {
1481                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
1482                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
1483                    showPreviousPreview(v);
1484                }
1485                return true;
1486            case R.id.next_screen:
1487                if (!isAllAppsVisible()) {
1488                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
1489                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
1490                    showNextPreview(v);
1491                }
1492                return true;
1493        }
1494
1495        if (isWorkspaceLocked()) {
1496            return false;
1497        }
1498
1499        if (!(v instanceof CellLayout)) {
1500            v = (View) v.getParent();
1501        }
1502
1503        CellLayout.CellInfo cellInfo = (CellLayout.CellInfo) v.getTag();
1504
1505        // This happens when long clicking an item with the dpad/trackball
1506        if (cellInfo == null) {
1507            return true;
1508        }
1509
1510        if (mWorkspace.allowLongPress()) {
1511            if (cellInfo.cell == null) {
1512                if (cellInfo.valid) {
1513                    // User long pressed on empty space
1514                    mWorkspace.setAllowLongPress(false);
1515                    showAddDialog(cellInfo);
1516                }
1517            } else {
1518                if (!(cellInfo.cell instanceof Folder)) {
1519                    // User long pressed on an item
1520                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
1521                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
1522                    mWorkspace.startDrag(cellInfo);
1523                }
1524            }
1525        }
1526        return true;
1527    }
1528
1529    @SuppressWarnings({"unchecked"})
1530    private void dismissPreview(final View v) {
1531        final PopupWindow window = (PopupWindow) v.getTag();
1532        if (window != null) {
1533            window.setOnDismissListener(new PopupWindow.OnDismissListener() {
1534                public void onDismiss() {
1535                    ViewGroup group = (ViewGroup) v.getTag(R.id.workspace);
1536                    int count = group.getChildCount();
1537                    for (int i = 0; i < count; i++) {
1538                        ((ImageView) group.getChildAt(i)).setImageDrawable(null);
1539                    }
1540                    ArrayList<Bitmap> bitmaps = (ArrayList<Bitmap>) v.getTag(R.id.icon);
1541                    for (Bitmap bitmap : bitmaps) bitmap.recycle();
1542
1543                    v.setTag(R.id.workspace, null);
1544                    v.setTag(R.id.icon, null);
1545                    window.setOnDismissListener(null);
1546                }
1547            });
1548            window.dismiss();
1549        }
1550        v.setTag(null);
1551    }
1552
1553    private void showPreviousPreview(View anchor) {
1554        int current = mWorkspace.getCurrentScreen();
1555        if (current <= 0) return;
1556
1557        showPreviews(anchor, 0, mWorkspace.getChildCount());
1558    }
1559
1560    private void showNextPreview(View anchor) {
1561        int current = mWorkspace.getCurrentScreen();
1562        if (current >= mWorkspace.getChildCount() - 1) return;
1563
1564        showPreviews(anchor, 0, mWorkspace.getChildCount());
1565    }
1566
1567    private void showPreviews(final View anchor, int start, int end) {
1568        Resources resources = getResources();
1569
1570        Workspace workspace = mWorkspace;
1571        CellLayout cell = ((CellLayout) workspace.getChildAt(start));
1572
1573        float max = workspace.getChildCount();
1574
1575        Rect r = new Rect();
1576        resources.getDrawable(R.drawable.preview_background).getPadding(r);
1577        int extraW = (int) ((r.left + r.right) * max);
1578        int extraH = r.top + r.bottom;
1579
1580        int aW = cell.getWidth() - extraW;
1581        float w = aW / max;
1582
1583        int width = cell.getWidth();
1584        int height = cell.getHeight();
1585        int x = cell.getLeftPadding();
1586        int y = cell.getTopPadding();
1587        width -= (x + cell.getRightPadding());
1588        height -= (y + cell.getBottomPadding());
1589
1590        float scale = w / width;
1591
1592        int count = end - start;
1593
1594        final float sWidth = width * scale;
1595        float sHeight = height * scale;
1596
1597        LinearLayout preview = new LinearLayout(this);
1598
1599        PreviewTouchHandler handler = new PreviewTouchHandler(anchor);
1600        ArrayList<Bitmap> bitmaps = new ArrayList<Bitmap>(count);
1601
1602        for (int i = start; i < end; i++) {
1603            ImageView image = new ImageView(this);
1604            cell = (CellLayout) workspace.getChildAt(i);
1605
1606            Bitmap bitmap = Bitmap.createBitmap((int) sWidth, (int) sHeight,
1607                    Bitmap.Config.ARGB_8888);
1608
1609            Canvas c = new Canvas(bitmap);
1610            c.scale(scale, scale);
1611            c.translate(-cell.getLeftPadding(), -cell.getTopPadding());
1612            cell.dispatchDraw(c);
1613
1614            image.setBackgroundDrawable(resources.getDrawable(R.drawable.preview_background));
1615            image.setImageBitmap(bitmap);
1616            image.setTag(i);
1617            image.setOnClickListener(handler);
1618            image.setOnFocusChangeListener(handler);
1619            image.setFocusable(true);
1620            if (i == mWorkspace.getCurrentScreen()) image.requestFocus();
1621
1622            preview.addView(image,
1623                    LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
1624
1625            bitmaps.add(bitmap);
1626        }
1627
1628        PopupWindow p = new PopupWindow(this);
1629        p.setContentView(preview);
1630        p.setWidth((int) (sWidth * count + extraW));
1631        p.setHeight((int) (sHeight + extraH));
1632        p.setAnimationStyle(R.style.AnimationPreview);
1633        p.setOutsideTouchable(true);
1634        p.setFocusable(true);
1635        p.setBackgroundDrawable(new ColorDrawable(0));
1636        p.showAsDropDown(anchor, 0, 0);
1637
1638        p.setOnDismissListener(new PopupWindow.OnDismissListener() {
1639            public void onDismiss() {
1640                dismissPreview(anchor);
1641            }
1642        });
1643
1644        anchor.setTag(p);
1645        anchor.setTag(R.id.workspace, preview);
1646        anchor.setTag(R.id.icon, bitmaps);
1647    }
1648
1649    class PreviewTouchHandler implements View.OnClickListener, Runnable, View.OnFocusChangeListener {
1650        private final View mAnchor;
1651
1652        public PreviewTouchHandler(View anchor) {
1653            mAnchor = anchor;
1654        }
1655
1656        public void onClick(View v) {
1657            mWorkspace.snapToScreen((Integer) v.getTag());
1658            v.post(this);
1659        }
1660
1661        public void run() {
1662            dismissPreview(mAnchor);
1663        }
1664
1665        public void onFocusChange(View v, boolean hasFocus) {
1666            if (hasFocus) {
1667                mWorkspace.snapToScreen((Integer) v.getTag());
1668            }
1669        }
1670    }
1671
1672    View getDrawerHandle() {
1673        return mHandleView;
1674    }
1675
1676    Workspace getWorkspace() {
1677        return mWorkspace;
1678    }
1679
1680    @Override
1681    protected Dialog onCreateDialog(int id) {
1682        switch (id) {
1683            case DIALOG_CREATE_SHORTCUT:
1684                return new CreateShortcut().createDialog();
1685            case DIALOG_RENAME_FOLDER:
1686                return new RenameFolder().createDialog();
1687        }
1688
1689        return super.onCreateDialog(id);
1690    }
1691
1692    @Override
1693    protected void onPrepareDialog(int id, Dialog dialog) {
1694        switch (id) {
1695            case DIALOG_CREATE_SHORTCUT:
1696                break;
1697            case DIALOG_RENAME_FOLDER:
1698                if (mFolderInfo != null) {
1699                    EditText input = (EditText) dialog.findViewById(R.id.folder_name);
1700                    final CharSequence text = mFolderInfo.title;
1701                    input.setText(text);
1702                    input.setSelection(0, text.length());
1703                }
1704                break;
1705        }
1706    }
1707
1708    void showRenameDialog(FolderInfo info) {
1709        mFolderInfo = info;
1710        mWaitingForResult = true;
1711        showDialog(DIALOG_RENAME_FOLDER);
1712    }
1713
1714    private void showAddDialog(CellLayout.CellInfo cellInfo) {
1715        mAddItemCellInfo = cellInfo;
1716        mWaitingForResult = true;
1717        showDialog(DIALOG_CREATE_SHORTCUT);
1718    }
1719
1720    private void pickShortcut(int requestCode, int title) {
1721        Bundle bundle = new Bundle();
1722
1723        ArrayList<String> shortcutNames = new ArrayList<String>();
1724        shortcutNames.add(getString(R.string.group_applications));
1725        bundle.putStringArrayList(Intent.EXTRA_SHORTCUT_NAME, shortcutNames);
1726
1727        ArrayList<ShortcutIconResource> shortcutIcons = new ArrayList<ShortcutIconResource>();
1728        shortcutIcons.add(ShortcutIconResource.fromContext(Launcher.this,
1729                        R.drawable.ic_launcher_application));
1730        bundle.putParcelableArrayList(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, shortcutIcons);
1731
1732        Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
1733        pickIntent.putExtra(Intent.EXTRA_INTENT, new Intent(Intent.ACTION_CREATE_SHORTCUT));
1734        pickIntent.putExtra(Intent.EXTRA_TITLE, getText(title));
1735        pickIntent.putExtras(bundle);
1736
1737        startActivityForResult(pickIntent, requestCode);
1738    }
1739
1740    private class RenameFolder {
1741        private EditText mInput;
1742
1743        Dialog createDialog() {
1744            mWaitingForResult = true;
1745            final View layout = View.inflate(Launcher.this, R.layout.rename_folder, null);
1746            mInput = (EditText) layout.findViewById(R.id.folder_name);
1747
1748            AlertDialog.Builder builder = new AlertDialog.Builder(Launcher.this);
1749            builder.setIcon(0);
1750            builder.setTitle(getString(R.string.rename_folder_title));
1751            builder.setCancelable(true);
1752            builder.setOnCancelListener(new Dialog.OnCancelListener() {
1753                public void onCancel(DialogInterface dialog) {
1754                    cleanup();
1755                }
1756            });
1757            builder.setNegativeButton(getString(R.string.cancel_action),
1758                new Dialog.OnClickListener() {
1759                    public void onClick(DialogInterface dialog, int which) {
1760                        cleanup();
1761                    }
1762                }
1763            );
1764            builder.setPositiveButton(getString(R.string.rename_action),
1765                new Dialog.OnClickListener() {
1766                    public void onClick(DialogInterface dialog, int which) {
1767                        changeFolderName();
1768                    }
1769                }
1770            );
1771            builder.setView(layout);
1772
1773            final AlertDialog dialog = builder.create();
1774            dialog.setOnShowListener(new DialogInterface.OnShowListener() {
1775                public void onShow(DialogInterface dialog) {
1776                    mInput.requestFocus();
1777                    InputMethodManager inputManager = (InputMethodManager)
1778                            getSystemService(Context.INPUT_METHOD_SERVICE);
1779                    inputManager.showSoftInput(mInput, 0);
1780                }
1781            });
1782
1783            return dialog;
1784        }
1785
1786        private void changeFolderName() {
1787            final String name = mInput.getText().toString();
1788            if (!TextUtils.isEmpty(name)) {
1789                // Make sure we have the right folder info
1790                mFolderInfo = mFolders.get(mFolderInfo.id);
1791                mFolderInfo.title = name;
1792                LauncherModel.updateItemInDatabase(Launcher.this, mFolderInfo);
1793
1794                if (mWorkspaceLoading) {
1795                    lockAllApps();
1796                    mModel.setWorkspaceDirty();
1797                    mModel.startLoader(Launcher.this, false);
1798                } else {
1799                    final FolderIcon folderIcon = (FolderIcon)
1800                            mWorkspace.getViewForTag(mFolderInfo);
1801                    if (folderIcon != null) {
1802                        folderIcon.setText(name);
1803                        getWorkspace().requestLayout();
1804                    } else {
1805                        lockAllApps();
1806                        mModel.setWorkspaceDirty();
1807                        mWorkspaceLoading = true;
1808                        mModel.startLoader(Launcher.this, false);
1809                    }
1810                }
1811            }
1812            cleanup();
1813        }
1814
1815        private void cleanup() {
1816            dismissDialog(DIALOG_RENAME_FOLDER);
1817            mWaitingForResult = false;
1818            mFolderInfo = null;
1819        }
1820    }
1821
1822    boolean isAllAppsVisible() {
1823        return mAllAppsGrid.isVisible();
1824    }
1825
1826    boolean isAllAppsOpaque() {
1827        return mAllAppsGrid.isOpaque();
1828    }
1829
1830    void showAllApps(boolean animated) {
1831        mAllAppsGrid.zoom(1.0f, animated);
1832        //mWorkspace.hide();
1833
1834        mWorkspace.startFading(false);
1835
1836        mAllAppsGrid.setFocusable(true);
1837        mAllAppsGrid.requestFocus();
1838
1839        // TODO: fade these two too
1840        mDeleteZone.setVisibility(View.GONE);
1841        //mHandleView.setVisibility(View.GONE);
1842    }
1843
1844    void closeAllApps(boolean animated) {
1845        if (mAllAppsGrid.isVisible()) {
1846            mAllAppsGrid.zoom(0.0f, animated);
1847            mAllAppsGrid.setFocusable(false);
1848            mWorkspace.getChildAt(mWorkspace.getCurrentScreen()).requestFocus();
1849            mWorkspace.startFading(true);
1850
1851            // TODO: fade these two too
1852            /*
1853            mDeleteZone.setVisibility(View.VISIBLE);
1854            mHandleView.setVisibility(View.VISIBLE);
1855            */
1856        }
1857    }
1858
1859    void lockAllApps() {
1860        // TODO
1861    }
1862
1863    void unlockAllApps() {
1864        // TODO
1865    }
1866
1867    /**
1868     * Displays the shortcut creation dialog and launches, if necessary, the
1869     * appropriate activity.
1870     */
1871    private class CreateShortcut implements DialogInterface.OnClickListener,
1872            DialogInterface.OnCancelListener, DialogInterface.OnDismissListener,
1873            DialogInterface.OnShowListener {
1874
1875        private AddAdapter mAdapter;
1876
1877        Dialog createDialog() {
1878            mWaitingForResult = true;
1879
1880            mAdapter = new AddAdapter(Launcher.this);
1881
1882            final AlertDialog.Builder builder = new AlertDialog.Builder(Launcher.this);
1883            builder.setTitle(getString(R.string.menu_item_add_item));
1884            builder.setAdapter(mAdapter, this);
1885
1886            builder.setInverseBackgroundForced(true);
1887
1888            AlertDialog dialog = builder.create();
1889            dialog.setOnCancelListener(this);
1890            dialog.setOnDismissListener(this);
1891            dialog.setOnShowListener(this);
1892
1893            return dialog;
1894        }
1895
1896        public void onCancel(DialogInterface dialog) {
1897            mWaitingForResult = false;
1898            cleanup();
1899        }
1900
1901        public void onDismiss(DialogInterface dialog) {
1902        }
1903
1904        private void cleanup() {
1905            try {
1906                dismissDialog(DIALOG_CREATE_SHORTCUT);
1907            } catch (Exception e) {
1908                // An exception is thrown if the dialog is not visible, which is fine
1909            }
1910        }
1911
1912        /**
1913         * Handle the action clicked in the "Add to home" dialog.
1914         */
1915        public void onClick(DialogInterface dialog, int which) {
1916            Resources res = getResources();
1917            cleanup();
1918
1919            switch (which) {
1920                case AddAdapter.ITEM_SHORTCUT: {
1921                    // Insert extra item to handle picking application
1922                    pickShortcut(REQUEST_PICK_SHORTCUT, R.string.title_select_shortcut);
1923                    break;
1924                }
1925
1926                case AddAdapter.ITEM_APPWIDGET: {
1927                    int appWidgetId = Launcher.this.mAppWidgetHost.allocateAppWidgetId();
1928
1929                    Intent pickIntent = new Intent(AppWidgetManager.ACTION_APPWIDGET_PICK);
1930                    pickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
1931                    // add the search widget
1932                    ArrayList<AppWidgetProviderInfo> customInfo =
1933                            new ArrayList<AppWidgetProviderInfo>();
1934                    AppWidgetProviderInfo info = new AppWidgetProviderInfo();
1935                    info.provider = new ComponentName(getPackageName(), "XXX.YYY");
1936                    info.label = getString(R.string.group_search);
1937                    info.icon = R.drawable.ic_search_widget;
1938                    customInfo.add(info);
1939                    pickIntent.putParcelableArrayListExtra(
1940                            AppWidgetManager.EXTRA_CUSTOM_INFO, customInfo);
1941                    ArrayList<Bundle> customExtras = new ArrayList<Bundle>();
1942                    Bundle b = new Bundle();
1943                    b.putString(EXTRA_CUSTOM_WIDGET, SEARCH_WIDGET);
1944                    customExtras.add(b);
1945                    pickIntent.putParcelableArrayListExtra(
1946                            AppWidgetManager.EXTRA_CUSTOM_EXTRAS, customExtras);
1947                    // start the pick activity
1948                    startActivityForResult(pickIntent, REQUEST_PICK_APPWIDGET);
1949                    break;
1950                }
1951
1952                case AddAdapter.ITEM_LIVE_FOLDER: {
1953                    // Insert extra item to handle inserting folder
1954                    Bundle bundle = new Bundle();
1955
1956                    ArrayList<String> shortcutNames = new ArrayList<String>();
1957                    shortcutNames.add(res.getString(R.string.group_folder));
1958                    bundle.putStringArrayList(Intent.EXTRA_SHORTCUT_NAME, shortcutNames);
1959
1960                    ArrayList<ShortcutIconResource> shortcutIcons =
1961                            new ArrayList<ShortcutIconResource>();
1962                    shortcutIcons.add(ShortcutIconResource.fromContext(Launcher.this,
1963                            R.drawable.ic_launcher_folder));
1964                    bundle.putParcelableArrayList(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, shortcutIcons);
1965
1966                    Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
1967                    pickIntent.putExtra(Intent.EXTRA_INTENT,
1968                            new Intent(LiveFolders.ACTION_CREATE_LIVE_FOLDER));
1969                    pickIntent.putExtra(Intent.EXTRA_TITLE,
1970                            getText(R.string.title_select_live_folder));
1971                    pickIntent.putExtras(bundle);
1972
1973                    startActivityForResult(pickIntent, REQUEST_PICK_LIVE_FOLDER);
1974                    break;
1975                }
1976
1977                case AddAdapter.ITEM_WALLPAPER: {
1978                    startWallpaper();
1979                    break;
1980                }
1981            }
1982        }
1983
1984        public void onShow(DialogInterface dialog) {
1985        }
1986    }
1987
1988    /**
1989     * Receives notifications when applications are added/removed.
1990     */
1991    private class CloseSystemDialogsIntentReceiver extends BroadcastReceiver {
1992        @Override
1993        public void onReceive(Context context, Intent intent) {
1994            closeSystemDialogs();
1995        }
1996    }
1997
1998    /**
1999     * Receives notifications whenever the appwidgets are reset.
2000     */
2001    private class AppWidgetResetObserver extends ContentObserver {
2002        public AppWidgetResetObserver() {
2003            super(new Handler());
2004        }
2005
2006        @Override
2007        public void onChange(boolean selfChange) {
2008            onAppWidgetReset();
2009        }
2010    }
2011
2012    /**
2013     * Implementation of the method from LauncherModel.Callbacks.
2014     */
2015    public int getCurrentWorkspaceScreen() {
2016        return mWorkspace.getCurrentScreen();
2017    }
2018
2019    /**
2020     * Refreshes the shortcuts shown on the workspace.
2021     *
2022     * Implementation of the method from LauncherModel.Callbacks.
2023     */
2024    public void startBinding() {
2025        final Workspace workspace = mWorkspace;
2026        int count = workspace.getChildCount();
2027        for (int i = 0; i < count; i++) {
2028            // Use removeAllViewsInLayout() to avoid an extra requestLayout() and invalidate().
2029            ((ViewGroup) workspace.getChildAt(i)).removeAllViewsInLayout();
2030        }
2031
2032        if (DEBUG_USER_INTERFACE) {
2033            android.widget.Button finishButton = new android.widget.Button(this);
2034            finishButton.setText("Finish");
2035            workspace.addInScreen(finishButton, 1, 0, 0, 1, 1);
2036
2037            finishButton.setOnClickListener(new android.widget.Button.OnClickListener() {
2038                public void onClick(View v) {
2039                    finish();
2040                }
2041            });
2042        }
2043    }
2044
2045    /**
2046     * Bind the items start-end from the list.
2047     *
2048     * Implementation of the method from LauncherModel.Callbacks.
2049     */
2050    public void bindItems(ArrayList<ItemInfo> shortcuts, int start, int end) {
2051
2052        final Workspace workspace = mWorkspace;
2053
2054        for (int i=start; i<end; i++) {
2055            final ItemInfo item = shortcuts.get(i);
2056            mDesktopItems.add(item);
2057            switch (item.itemType) {
2058                case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
2059                case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
2060                    final View shortcut = createShortcut((ApplicationInfo) item);
2061                    workspace.addInScreen(shortcut, item.screen, item.cellX, item.cellY, 1, 1,
2062                            false);
2063                    break;
2064                case LauncherSettings.Favorites.ITEM_TYPE_USER_FOLDER:
2065                    final FolderIcon newFolder = FolderIcon.fromXml(R.layout.folder_icon, this,
2066                            (ViewGroup) workspace.getChildAt(workspace.getCurrentScreen()),
2067                            (UserFolderInfo) item);
2068                    workspace.addInScreen(newFolder, item.screen, item.cellX, item.cellY, 1, 1,
2069                            false);
2070                    break;
2071                case LauncherSettings.Favorites.ITEM_TYPE_LIVE_FOLDER:
2072                    final FolderIcon newLiveFolder = LiveFolderIcon.fromXml(
2073                            R.layout.live_folder_icon, this,
2074                            (ViewGroup) workspace.getChildAt(workspace.getCurrentScreen()),
2075                            (LiveFolderInfo) item);
2076                    workspace.addInScreen(newLiveFolder, item.screen, item.cellX, item.cellY, 1, 1,
2077                            false);
2078                    break;
2079                case LauncherSettings.Favorites.ITEM_TYPE_WIDGET_SEARCH:
2080                    final int screen = workspace.getCurrentScreen();
2081                    final View view = mInflater.inflate(R.layout.widget_search,
2082                            (ViewGroup) workspace.getChildAt(screen), false);
2083
2084                    Search search = (Search) view.findViewById(R.id.widget_search);
2085                    search.setLauncher(this);
2086
2087                    final Widget widget = (Widget) item;
2088                    view.setTag(widget);
2089
2090                    workspace.addWidget(view, widget, false);
2091                    break;
2092            }
2093        }
2094
2095        workspace.requestLayout();
2096    }
2097
2098    /**
2099     * Implementation of the method from LauncherModel.Callbacks.
2100     */
2101    public void bindFolders(HashMap<Long, FolderInfo> folders) {
2102        mFolders.clear();
2103        mFolders.putAll(folders);
2104    }
2105
2106    /**
2107     * Add the views for a widget to the workspace.
2108     *
2109     * Implementation of the method from LauncherModel.Callbacks.
2110     */
2111    public void bindAppWidget(LauncherAppWidgetInfo item) {
2112        final Workspace workspace = mWorkspace;
2113
2114        final int appWidgetId = item.appWidgetId;
2115        final AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
2116        item.hostView = mAppWidgetHost.createView(this, appWidgetId, appWidgetInfo);
2117
2118        item.hostView.setAppWidget(appWidgetId, appWidgetInfo);
2119        item.hostView.setTag(item);
2120
2121        workspace.addInScreen(item.hostView, item.screen, item.cellX,
2122                item.cellY, item.spanX, item.spanY, false);
2123
2124        workspace.requestLayout();
2125
2126        mDesktopItems.add(item);
2127    }
2128
2129    /**
2130     * Callback saying that there aren't any more items to bind.
2131     *
2132     * Implementation of the method from LauncherModel.Callbacks.
2133     */
2134    public void finishBindingItems() {
2135        if (mSavedState != null) {
2136            if (!mWorkspace.hasFocus()) {
2137                mWorkspace.getChildAt(mWorkspace.getCurrentScreen()).requestFocus();
2138            }
2139
2140            final long[] userFolders = mSavedState.getLongArray(RUNTIME_STATE_USER_FOLDERS);
2141            if (userFolders != null) {
2142                for (long folderId : userFolders) {
2143                    final FolderInfo info = mFolders.get(folderId);
2144                    if (info != null) {
2145                        openFolder(info);
2146                    }
2147                }
2148                final Folder openFolder = mWorkspace.getOpenFolder();
2149                if (openFolder != null) {
2150                    openFolder.requestFocus();
2151                }
2152            }
2153
2154            mSavedState = null;
2155        }
2156
2157        if (mSavedInstanceState != null) {
2158            super.onRestoreInstanceState(mSavedInstanceState);
2159            mSavedInstanceState = null;
2160        }
2161
2162        mWorkspaceLoading = false;
2163    }
2164
2165    /**
2166     * Add the icons for all apps.
2167     *
2168     * Implementation of the method from LauncherModel.Callbacks.
2169     */
2170    public void bindAllApplications(ArrayList<ApplicationInfo> apps) {
2171        mAllAppsGrid.setApps(apps);
2172    }
2173
2174    /**
2175     * A package was installed.
2176     *
2177     * Implementation of the method from LauncherModel.Callbacks.
2178     */
2179    public void bindPackageAdded(ArrayList<ApplicationInfo> apps) {
2180        removeDialog(DIALOG_CREATE_SHORTCUT);
2181        mAllAppsGrid.addApps(apps);
2182    }
2183
2184    /**
2185     * A package was updated.
2186     *
2187     * Implementation of the method from LauncherModel.Callbacks.
2188     */
2189    public void bindPackageUpdated(String packageName, ArrayList<ApplicationInfo> apps) {
2190        removeDialog(DIALOG_CREATE_SHORTCUT);
2191        mWorkspace.updateShortcutsForPackage(packageName);
2192    }
2193
2194    /**
2195     * A package was uninstalled.
2196     *
2197     * Implementation of the method from LauncherModel.Callbacks.
2198     */
2199    public void bindPackageRemoved(String packageName, ArrayList<ApplicationInfo> apps) {
2200        removeDialog(DIALOG_CREATE_SHORTCUT);
2201        mWorkspace.removeShortcutsForPackage(packageName);
2202        mAllAppsGrid.removeApps(apps);
2203    }
2204
2205    /**
2206     * Prints out out state for debugging.
2207     */
2208    public void dumpState() {
2209        Log.d(TAG, "BEGIN launcher2 dump state for launcher " + this);
2210        Log.d(TAG, "mSavedState=" + mSavedState);
2211        Log.d(TAG, "mIsNewIntent=" + mIsNewIntent);
2212        Log.d(TAG, "mWorkspaceLoading=" + mWorkspaceLoading);
2213        Log.d(TAG, "mRestoring=" + mRestoring);
2214        Log.d(TAG, "mWaitingForResult=" + mWaitingForResult);
2215        Log.d(TAG, "mSavedInstanceState=" + mSavedInstanceState);
2216        Log.d(TAG, "mDesktopItems.size=" + mDesktopItems.size());
2217        Log.d(TAG, "mFolders.size=" + mFolders.size());
2218        mModel.dumpState();
2219        mAllAppsGrid.dumpState();
2220        Log.d(TAG, "END launcher2 dump state");
2221    }
2222}
2223