Launcher.java revision 34a0e1b00b9baeff19e94f1ee35dd890063489d2 
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 mPaused = true;
191    private boolean mRestoring;
192    private boolean mWaitingForResult;
193
194    private Bundle mSavedInstanceState;
195
196    private LauncherModel mModel;
197
198    private ArrayList<ItemInfo> mDesktopItems = new ArrayList<ItemInfo>();
199    private static HashMap<Long, FolderInfo> mFolders = new HashMap<Long, FolderInfo>();
200
201    private ImageView mPreviousView;
202    private ImageView mNextView;
203
204    @Override
205    protected void onCreate(Bundle savedInstanceState) {
206        super.onCreate(savedInstanceState);
207
208        mModel = ((LauncherApplication)getApplication()).setLauncher(this);
209        mDragController = new DragController(this);
210        mInflater = getLayoutInflater();
211
212        mAppWidgetManager = AppWidgetManager.getInstance(this);
213        mAppWidgetHost = new LauncherAppWidgetHost(this, APPWIDGET_HOST_ID);
214        mAppWidgetHost.startListening();
215
216        if (PROFILE_STARTUP) {
217            android.os.Debug.startMethodTracing("/sdcard/launcher");
218        }
219
220        checkForLocaleChange();
221        setWallpaperDimension();
222
223        setContentView(R.layout.launcher);
224        setupViews();
225
226        registerContentObservers();
227
228        lockAllApps();
229
230        mSavedState = savedInstanceState;
231        restoreState(mSavedState);
232
233        if (PROFILE_STARTUP) {
234            android.os.Debug.stopMethodTracing();
235        }
236
237        // We have a new AllAppsView, we need to re-bind everything, and it could have
238        // changed in our absence.
239        mModel.setAllAppsDirty();
240        mModel.setWorkspaceDirty();
241
242        if (!mRestoring) {
243            mModel.startLoader(this, true);
244        }
245
246        // For handling default keys
247        mDefaultKeySsb = new SpannableStringBuilder();
248        Selection.setSelection(mDefaultKeySsb, 0);
249
250        IntentFilter filter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
251        registerReceiver(mCloseSystemDialogsReceiver, filter);
252    }
253
254    private void checkForLocaleChange() {
255        final LocaleConfiguration localeConfiguration = new LocaleConfiguration();
256        readConfiguration(this, localeConfiguration);
257
258        final Configuration configuration = getResources().getConfiguration();
259
260        final String previousLocale = localeConfiguration.locale;
261        final String locale = configuration.locale.toString();
262
263        final int previousMcc = localeConfiguration.mcc;
264        final int mcc = configuration.mcc;
265
266        final int previousMnc = localeConfiguration.mnc;
267        final int mnc = configuration.mnc;
268
269        boolean localeChanged = !locale.equals(previousLocale) || mcc != previousMcc || mnc != previousMnc;
270
271        if (localeChanged) {
272            localeConfiguration.locale = locale;
273            localeConfiguration.mcc = mcc;
274            localeConfiguration.mnc = mnc;
275
276            writeConfiguration(this, localeConfiguration);
277            AppInfoCache.flush();
278        }
279    }
280
281    private static class LocaleConfiguration {
282        public String locale;
283        public int mcc = -1;
284        public int mnc = -1;
285    }
286
287    private static void readConfiguration(Context context, LocaleConfiguration configuration) {
288        DataInputStream in = null;
289        try {
290            in = new DataInputStream(context.openFileInput(PREFERENCES));
291            configuration.locale = in.readUTF();
292            configuration.mcc = in.readInt();
293            configuration.mnc = in.readInt();
294        } catch (FileNotFoundException e) {
295            // Ignore
296        } catch (IOException e) {
297            // Ignore
298        } finally {
299            if (in != null) {
300                try {
301                    in.close();
302                } catch (IOException e) {
303                    // Ignore
304                }
305            }
306        }
307    }
308
309    private static void writeConfiguration(Context context, LocaleConfiguration configuration) {
310        DataOutputStream out = null;
311        try {
312            out = new DataOutputStream(context.openFileOutput(PREFERENCES, MODE_PRIVATE));
313            out.writeUTF(configuration.locale);
314            out.writeInt(configuration.mcc);
315            out.writeInt(configuration.mnc);
316            out.flush();
317        } catch (FileNotFoundException e) {
318            // Ignore
319        } catch (IOException e) {
320            //noinspection ResultOfMethodCallIgnored
321            context.getFileStreamPath(PREFERENCES).delete();
322        } finally {
323            if (out != null) {
324                try {
325                    out.close();
326                } catch (IOException e) {
327                    // Ignore
328                }
329            }
330        }
331    }
332
333    static int getScreen() {
334        synchronized (sLock) {
335            return sScreen;
336        }
337    }
338
339    static void setScreen(int screen) {
340        synchronized (sLock) {
341            sScreen = screen;
342        }
343    }
344
345    private void setWallpaperDimension() {
346        WallpaperManager wpm = (WallpaperManager)getSystemService(WALLPAPER_SERVICE);
347
348        Display display = getWindowManager().getDefaultDisplay();
349        boolean isPortrait = display.getWidth() < display.getHeight();
350
351        final int width = isPortrait ? display.getWidth() : display.getHeight();
352        final int height = isPortrait ? display.getHeight() : display.getWidth();
353        wpm.suggestDesiredDimensions(width * WALLPAPER_SCREENS_SPAN, height);
354    }
355
356    @Override
357    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
358        mWaitingForResult = false;
359
360        // The pattern used here is that a user PICKs a specific application,
361        // which, depending on the target, might need to CREATE the actual target.
362
363        // For example, the user would PICK_SHORTCUT for "Music playlist", and we
364        // launch over to the Music app to actually CREATE_SHORTCUT.
365
366        if (resultCode == RESULT_OK && mAddItemCellInfo != null) {
367            switch (requestCode) {
368                case REQUEST_PICK_APPLICATION:
369                    completeAddApplication(this, data, mAddItemCellInfo);
370                    break;
371                case REQUEST_PICK_SHORTCUT:
372                    processShortcut(data, REQUEST_PICK_APPLICATION, REQUEST_CREATE_SHORTCUT);
373                    break;
374                case REQUEST_CREATE_SHORTCUT:
375                    completeAddShortcut(data, mAddItemCellInfo);
376                    break;
377                case REQUEST_PICK_LIVE_FOLDER:
378                    addLiveFolder(data);
379                    break;
380                case REQUEST_CREATE_LIVE_FOLDER:
381                    completeAddLiveFolder(data, mAddItemCellInfo);
382                    break;
383                case REQUEST_PICK_APPWIDGET:
384                    addAppWidget(data);
385                    break;
386                case REQUEST_CREATE_APPWIDGET:
387                    completeAddAppWidget(data, mAddItemCellInfo);
388                    break;
389                case REQUEST_PICK_WALLPAPER:
390                    // We just wanted the activity result here so we can clear mWaitingForResult
391                    break;
392            }
393        } else if ((requestCode == REQUEST_PICK_APPWIDGET ||
394                requestCode == REQUEST_CREATE_APPWIDGET) && resultCode == RESULT_CANCELED &&
395                data != null) {
396            // Clean up the appWidgetId if we canceled
397            int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
398            if (appWidgetId != -1) {
399                mAppWidgetHost.deleteAppWidgetId(appWidgetId);
400            }
401        }
402    }
403
404    @Override
405    protected void onResume() {
406        super.onResume();
407
408        mPaused = false;
409
410        if (mRestoring) {
411            mWorkspaceLoading = true;
412            mModel.startLoader(this, true);
413            mRestoring = false;
414        }
415
416        // If this was a new intent (i.e., the mIsNewIntent flag got set to true by
417        // onNewIntent), then close the search dialog if needed, because it probably
418        // came from the user pressing 'home' (rather than, for example, pressing 'back').
419        if (mIsNewIntent) {
420            // Post to a handler so that this happens after the search dialog tries to open
421            // itself again.
422            mWorkspace.post(new Runnable() {
423                public void run() {
424                    stopSearch();
425                }
426            });
427        }
428
429        mIsNewIntent = false;
430    }
431
432    @Override
433    protected void onPause() {
434        super.onPause();
435        dismissPreview(mPreviousView);
436        dismissPreview(mNextView);
437        mDragController.cancelDrag();
438    }
439
440    @Override
441    public Object onRetainNonConfigurationInstance() {
442        // Flag the loader to stop early before switching
443        mModel.stopLoader();
444
445        if (PROFILE_ROTATE) {
446            android.os.Debug.startMethodTracing("/sdcard/launcher-rotate");
447        }
448        return null;
449    }
450
451    private boolean acceptFilter() {
452        final InputMethodManager inputManager = (InputMethodManager)
453                getSystemService(Context.INPUT_METHOD_SERVICE);
454        return !inputManager.isFullscreenMode();
455    }
456
457    @Override
458    public boolean onKeyDown(int keyCode, KeyEvent event) {
459        boolean handled = super.onKeyDown(keyCode, event);
460        if (!handled && acceptFilter() && keyCode != KeyEvent.KEYCODE_ENTER) {
461            boolean gotKey = TextKeyListener.getInstance().onKeyDown(mWorkspace, mDefaultKeySsb,
462                    keyCode, event);
463            if (gotKey && mDefaultKeySsb != null && mDefaultKeySsb.length() > 0) {
464                // something usable has been typed - start a search
465                // the typed text will be retrieved and cleared by
466                // showSearchDialog()
467                // If there are multiple keystrokes before the search dialog takes focus,
468                // onSearchRequested() will be called for every keystroke,
469                // but it is idempotent, so it's fine.
470                return onSearchRequested();
471            }
472        }
473
474        return handled;
475    }
476
477    private String getTypedText() {
478        return mDefaultKeySsb.toString();
479    }
480
481    private void clearTypedText() {
482        mDefaultKeySsb.clear();
483        mDefaultKeySsb.clearSpans();
484        Selection.setSelection(mDefaultKeySsb, 0);
485    }
486
487    /**
488     * Restores the previous state, if it exists.
489     *
490     * @param savedState The previous state.
491     */
492    private void restoreState(Bundle savedState) {
493        if (savedState == null) {
494            return;
495        }
496
497        final boolean allApps = savedState.getBoolean(RUNTIME_STATE_ALL_APPS_FOLDER, false);
498        if (allApps) {
499            showAllApps(false);
500        }
501
502        final int currentScreen = savedState.getInt(RUNTIME_STATE_CURRENT_SCREEN, -1);
503        if (currentScreen > -1) {
504            mWorkspace.setCurrentScreen(currentScreen);
505        }
506
507        final int addScreen = savedState.getInt(RUNTIME_STATE_PENDING_ADD_SCREEN, -1);
508        if (addScreen > -1) {
509            mAddItemCellInfo = new CellLayout.CellInfo();
510            final CellLayout.CellInfo addItemCellInfo = mAddItemCellInfo;
511            addItemCellInfo.valid = true;
512            addItemCellInfo.screen = addScreen;
513            addItemCellInfo.cellX = savedState.getInt(RUNTIME_STATE_PENDING_ADD_CELL_X);
514            addItemCellInfo.cellY = savedState.getInt(RUNTIME_STATE_PENDING_ADD_CELL_Y);
515            addItemCellInfo.spanX = savedState.getInt(RUNTIME_STATE_PENDING_ADD_SPAN_X);
516            addItemCellInfo.spanY = savedState.getInt(RUNTIME_STATE_PENDING_ADD_SPAN_Y);
517            addItemCellInfo.findVacantCellsFromOccupied(
518                    savedState.getBooleanArray(RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS),
519                    savedState.getInt(RUNTIME_STATE_PENDING_ADD_COUNT_X),
520                    savedState.getInt(RUNTIME_STATE_PENDING_ADD_COUNT_Y));
521            mRestoring = true;
522        }
523
524        boolean renameFolder = savedState.getBoolean(RUNTIME_STATE_PENDING_FOLDER_RENAME, false);
525        if (renameFolder) {
526            long id = savedState.getLong(RUNTIME_STATE_PENDING_FOLDER_RENAME_ID);
527            mFolderInfo = mModel.getFolderById(this, mFolders, id);
528            mRestoring = true;
529        }
530    }
531
532    /**
533     * Finds all the views we need and configure them properly.
534     */
535    private void setupViews() {
536        DragController dragController = mDragController;
537
538        DragLayer dragLayer = (DragLayer) findViewById(R.id.drag_layer);
539        dragLayer.setDragController(dragController);
540
541        mAllAppsGrid = (AllAppsView)dragLayer.findViewById(R.id.all_apps_view);
542        mAllAppsGrid.setLauncher(this);
543        mAllAppsGrid.setDragController(dragController);
544        mAllAppsGrid.setWillNotDraw(false); // We don't want a hole punched in our window.
545        // Manage focusability manually since this thing is always visible
546        mAllAppsGrid.setFocusable(false);
547
548        mWorkspace = (Workspace) dragLayer.findViewById(R.id.workspace);
549        final Workspace workspace = mWorkspace;
550
551        DeleteZone deleteZone = (DeleteZone) dragLayer.findViewById(R.id.delete_zone);
552        mDeleteZone = deleteZone;
553
554        mHandleView = (HandleView) findViewById(R.id.all_apps_button);
555        mHandleView.setLauncher(this);
556        mHandleView.setOnClickListener(this);
557
558        mPreviousView = (ImageView) dragLayer.findViewById(R.id.previous_screen);
559        mNextView = (ImageView) dragLayer.findViewById(R.id.next_screen);
560
561        Drawable previous = mPreviousView.getDrawable();
562        Drawable next = mNextView.getDrawable();
563        mWorkspace.setIndicators(previous, next);
564
565        mPreviousView.setHapticFeedbackEnabled(false);
566        mPreviousView.setOnLongClickListener(this);
567        mNextView.setHapticFeedbackEnabled(false);
568        mNextView.setOnLongClickListener(this);
569
570        workspace.setOnLongClickListener(this);
571        workspace.setDragController(dragController);
572        workspace.setLauncher(this);
573
574        deleteZone.setLauncher(this);
575        deleteZone.setDragController(dragController);
576        deleteZone.setHandle(mHandleView);
577
578        dragController.setDragScoller(workspace);
579        dragController.setDragListener(deleteZone);
580        dragController.setScrollView(dragLayer);
581
582        // The order here is bottom to top.
583        dragController.addDropTarget(workspace);
584        dragController.addDropTarget(deleteZone);
585    }
586
587    @SuppressWarnings({"UnusedDeclaration"})
588    public void previousScreen(View v) {
589        if (!isAllAppsVisible()) {
590            mWorkspace.scrollLeft();
591        }
592    }
593
594    @SuppressWarnings({"UnusedDeclaration"})
595    public void nextScreen(View v) {
596        if (!isAllAppsVisible()) {
597            mWorkspace.scrollRight();
598        }
599    }
600
601    /**
602     * Creates a view representing a shortcut.
603     *
604     * @param info The data structure describing the shortcut.
605     *
606     * @return A View inflated from R.layout.application.
607     */
608    View createShortcut(ApplicationInfo info) {
609        return createShortcut(R.layout.application,
610                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentScreen()), info);
611    }
612
613    /**
614     * Creates a view representing a shortcut inflated from the specified resource.
615     *
616     * @param layoutResId The id of the XML layout used to create the shortcut.
617     * @param parent The group the shortcut belongs to.
618     * @param info The data structure describing the shortcut.
619     *
620     * @return A View inflated from layoutResId.
621     */
622    View createShortcut(int layoutResId, ViewGroup parent, ApplicationInfo info) {
623        TextView favorite = (TextView) mInflater.inflate(layoutResId, parent, false);
624
625        if (info.icon == null) {
626            info.icon = AppInfoCache.getIconDrawable(getPackageManager(), info);
627        }
628        if (!info.filtered) {
629            info.icon = Utilities.createIconThumbnail(info.icon, this);
630            info.filtered = true;
631        }
632
633        favorite.setCompoundDrawablesWithIntrinsicBounds(null, info.icon, null, null);
634        favorite.setText(info.title);
635        favorite.setTag(info);
636        favorite.setOnClickListener(this);
637
638        return favorite;
639    }
640
641    /**
642     * Add an application shortcut to the workspace.
643     *
644     * @param data The intent describing the application.
645     * @param cellInfo The position on screen where to create the shortcut.
646     */
647    void completeAddApplication(Context context, Intent data, CellLayout.CellInfo cellInfo) {
648        cellInfo.screen = mWorkspace.getCurrentScreen();
649        if (!findSingleSlot(cellInfo)) return;
650
651        final ApplicationInfo info = infoFromApplicationIntent(context, data);
652        if (info != null) {
653            mWorkspace.addApplicationShortcut(info, cellInfo, isWorkspaceLocked());
654        }
655    }
656
657    private static ApplicationInfo infoFromApplicationIntent(Context context, Intent data) {
658        ComponentName component = data.getComponent();
659        PackageManager packageManager = context.getPackageManager();
660        ActivityInfo activityInfo = null;
661        try {
662            activityInfo = packageManager.getActivityInfo(component, 0 /* no flags */);
663        } catch (NameNotFoundException e) {
664            Log.e(TAG, "Couldn't find ActivityInfo for selected application", e);
665        }
666
667        if (activityInfo != null) {
668            ApplicationInfo itemInfo = new ApplicationInfo();
669
670            itemInfo.title = activityInfo.loadLabel(packageManager);
671            if (itemInfo.title == null) {
672                itemInfo.title = activityInfo.name;
673            }
674
675            itemInfo.setActivity(component, Intent.FLAG_ACTIVITY_NEW_TASK |
676                    Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
677            itemInfo.icon = activityInfo.loadIcon(packageManager);
678            itemInfo.container = ItemInfo.NO_ID;
679
680            return itemInfo;
681        }
682
683        return null;
684    }
685
686    /**
687     * Add a shortcut to the workspace.
688     *
689     * @param data The intent describing the shortcut.
690     * @param cellInfo The position on screen where to create the shortcut.
691     */
692    private void completeAddShortcut(Intent data, CellLayout.CellInfo cellInfo) {
693        cellInfo.screen = mWorkspace.getCurrentScreen();
694        if (!findSingleSlot(cellInfo)) return;
695
696        final ApplicationInfo info = addShortcut(this, data, cellInfo, false);
697
698        if (!mRestoring) {
699            final View view = createShortcut(info);
700            mWorkspace.addInCurrentScreen(view, cellInfo.cellX, cellInfo.cellY, 1, 1,
701                    isWorkspaceLocked());
702        }
703    }
704
705
706    /**
707     * Add a widget to the workspace.
708     *
709     * @param data The intent describing the appWidgetId.
710     * @param cellInfo The position on screen where to create the widget.
711     */
712    private void completeAddAppWidget(Intent data, CellLayout.CellInfo cellInfo) {
713        Bundle extras = data.getExtras();
714        int appWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
715
716        if (LOGD) Log.d(TAG, "dumping extras content=" + extras.toString());
717
718        AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
719
720        // Calculate the grid spans needed to fit this widget
721        CellLayout layout = (CellLayout) mWorkspace.getChildAt(cellInfo.screen);
722        int[] spans = layout.rectToCell(appWidgetInfo.minWidth, appWidgetInfo.minHeight);
723
724        // Try finding open space on Launcher screen
725        final int[] xy = mCellCoordinates;
726        if (!findSlot(cellInfo, xy, spans[0], spans[1])) {
727            if (appWidgetId != -1) mAppWidgetHost.deleteAppWidgetId(appWidgetId);
728            return;
729        }
730
731        // Build Launcher-specific widget info and save to database
732        LauncherAppWidgetInfo launcherInfo = new LauncherAppWidgetInfo(appWidgetId);
733        launcherInfo.spanX = spans[0];
734        launcherInfo.spanY = spans[1];
735
736        LauncherModel.addItemToDatabase(this, launcherInfo,
737                LauncherSettings.Favorites.CONTAINER_DESKTOP,
738                mWorkspace.getCurrentScreen(), xy[0], xy[1], false);
739
740        if (!mRestoring) {
741            mDesktopItems.add(launcherInfo);
742
743            // Perform actual inflation because we're live
744            launcherInfo.hostView = mAppWidgetHost.createView(this, appWidgetId, appWidgetInfo);
745
746            launcherInfo.hostView.setAppWidget(appWidgetId, appWidgetInfo);
747            launcherInfo.hostView.setTag(launcherInfo);
748
749            mWorkspace.addInCurrentScreen(launcherInfo.hostView, xy[0], xy[1],
750                    launcherInfo.spanX, launcherInfo.spanY, isWorkspaceLocked());
751        }
752    }
753
754    public void removeAppWidget(LauncherAppWidgetInfo launcherInfo) {
755        mDesktopItems.remove(launcherInfo);
756        launcherInfo.hostView = null;
757    }
758
759    public LauncherAppWidgetHost getAppWidgetHost() {
760        return mAppWidgetHost;
761    }
762
763    static ApplicationInfo addShortcut(Context context, Intent data,
764            CellLayout.CellInfo cellInfo, boolean notify) {
765
766        final ApplicationInfo info = infoFromShortcutIntent(context, data);
767        LauncherModel.addItemToDatabase(context, info, LauncherSettings.Favorites.CONTAINER_DESKTOP,
768                cellInfo.screen, cellInfo.cellX, cellInfo.cellY, notify);
769
770        return info;
771    }
772
773    private static ApplicationInfo infoFromShortcutIntent(Context context, Intent data) {
774        Intent intent = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_INTENT);
775        String name = data.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
776        Bitmap bitmap = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_ICON);
777
778        Drawable icon = null;
779        boolean filtered = false;
780        boolean customIcon = false;
781        ShortcutIconResource iconResource = null;
782
783        if (bitmap != null) {
784            icon = new FastBitmapDrawable(Utilities.createBitmapThumbnail(bitmap, context));
785            filtered = true;
786            customIcon = true;
787        } else {
788            Parcelable extra = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE);
789            if (extra != null && extra instanceof ShortcutIconResource) {
790                try {
791                    iconResource = (ShortcutIconResource) extra;
792                    final PackageManager packageManager = context.getPackageManager();
793                    Resources resources = packageManager.getResourcesForApplication(
794                            iconResource.packageName);
795                    final int id = resources.getIdentifier(iconResource.resourceName, null, null);
796                    icon = resources.getDrawable(id);
797                } catch (Exception e) {
798                    Log.w(TAG, "Could not load shortcut icon: " + extra);
799                }
800            }
801        }
802
803        if (icon == null) {
804            icon = context.getPackageManager().getDefaultActivityIcon();
805        }
806
807        final ApplicationInfo info = new ApplicationInfo();
808        info.icon = icon;
809        info.filtered = filtered;
810        info.title = name;
811        info.intent = intent;
812        info.customIcon = customIcon;
813        info.iconResource = iconResource;
814
815        return info;
816    }
817
818    void closeSystemDialogs() {
819        getWindow().closeAllPanels();
820
821        try {
822            dismissDialog(DIALOG_CREATE_SHORTCUT);
823            // Unlock the workspace if the dialog was showing
824        } catch (Exception e) {
825            // An exception is thrown if the dialog is not visible, which is fine
826        }
827
828        try {
829            dismissDialog(DIALOG_RENAME_FOLDER);
830            // Unlock the workspace if the dialog was showing
831        } catch (Exception e) {
832            // An exception is thrown if the dialog is not visible, which is fine
833        }
834
835        // Whatever we were doing is hereby canceled.
836        mWaitingForResult = false;
837    }
838
839    @Override
840    protected void onNewIntent(Intent intent) {
841        super.onNewIntent(intent);
842
843        // Close the menu
844        if (Intent.ACTION_MAIN.equals(intent.getAction())) {
845            // also will cancel mWaitingForResult.
846            closeSystemDialogs();
847
848            // Set this flag so that onResume knows to close the search dialog if it's open,
849            // because this was a new intent (thus a press of 'home' or some such) rather than
850            // for example onResume being called when the user pressed the 'back' button.
851            mIsNewIntent = true;
852
853            boolean alreadyOnHome = ((intent.getFlags() & Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT)
854                        != Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT);
855            boolean allAppsVisible = isAllAppsVisible();
856            if (!mWorkspace.isDefaultScreenShowing()) {
857                mWorkspace.moveToDefaultScreen(alreadyOnHome && !allAppsVisible);
858            }
859            closeAllApps(alreadyOnHome && allAppsVisible);
860
861            final View v = getWindow().peekDecorView();
862            if (v != null && v.getWindowToken() != null) {
863                InputMethodManager imm = (InputMethodManager)getSystemService(
864                        INPUT_METHOD_SERVICE);
865                imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
866            }
867        }
868    }
869
870    @Override
871    protected void onRestoreInstanceState(Bundle savedInstanceState) {
872        // Do not call super here
873        mSavedInstanceState = savedInstanceState;
874    }
875
876    @Override
877    protected void onSaveInstanceState(Bundle outState) {
878        outState.putInt(RUNTIME_STATE_CURRENT_SCREEN, mWorkspace.getCurrentScreen());
879
880        final ArrayList<Folder> folders = mWorkspace.getOpenFolders();
881        if (folders.size() > 0) {
882            final int count = folders.size();
883            long[] ids = new long[count];
884            for (int i = 0; i < count; i++) {
885                final FolderInfo info = folders.get(i).getInfo();
886                ids[i] = info.id;
887            }
888            outState.putLongArray(RUNTIME_STATE_USER_FOLDERS, ids);
889        } else {
890            super.onSaveInstanceState(outState);
891        }
892
893        // TODO should not do this if the drawer is currently closing.
894        if (isAllAppsVisible()) {
895            outState.putBoolean(RUNTIME_STATE_ALL_APPS_FOLDER, true);
896        }
897
898        if (mAddItemCellInfo != null && mAddItemCellInfo.valid && mWaitingForResult) {
899            final CellLayout.CellInfo addItemCellInfo = mAddItemCellInfo;
900            final CellLayout layout = (CellLayout) mWorkspace.getChildAt(addItemCellInfo.screen);
901
902            outState.putInt(RUNTIME_STATE_PENDING_ADD_SCREEN, addItemCellInfo.screen);
903            outState.putInt(RUNTIME_STATE_PENDING_ADD_CELL_X, addItemCellInfo.cellX);
904            outState.putInt(RUNTIME_STATE_PENDING_ADD_CELL_Y, addItemCellInfo.cellY);
905            outState.putInt(RUNTIME_STATE_PENDING_ADD_SPAN_X, addItemCellInfo.spanX);
906            outState.putInt(RUNTIME_STATE_PENDING_ADD_SPAN_Y, addItemCellInfo.spanY);
907            outState.putInt(RUNTIME_STATE_PENDING_ADD_COUNT_X, layout.getCountX());
908            outState.putInt(RUNTIME_STATE_PENDING_ADD_COUNT_Y, layout.getCountY());
909            outState.putBooleanArray(RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS,
910                   layout.getOccupiedCells());
911        }
912
913        if (mFolderInfo != null && mWaitingForResult) {
914            outState.putBoolean(RUNTIME_STATE_PENDING_FOLDER_RENAME, true);
915            outState.putLong(RUNTIME_STATE_PENDING_FOLDER_RENAME_ID, mFolderInfo.id);
916        }
917    }
918
919    @Override
920    public void onDestroy() {
921        super.onDestroy();
922
923        try {
924            mAppWidgetHost.stopListening();
925        } catch (NullPointerException ex) {
926            Log.w(TAG, "problem while stopping AppWidgetHost during Launcher destruction", ex);
927        }
928
929        TextKeyListener.getInstance().release();
930
931        mModel.stopLoader();
932
933        unbindDesktopItems();
934        AppInfoCache.unbindDrawables();
935
936        getContentResolver().unregisterContentObserver(mWidgetObserver);
937
938        dismissPreview(mPreviousView);
939        dismissPreview(mNextView);
940
941        unregisterReceiver(mCloseSystemDialogsReceiver);
942    }
943
944    @Override
945    public void startActivityForResult(Intent intent, int requestCode) {
946        if (requestCode >= 0) mWaitingForResult = true;
947        super.startActivityForResult(intent, requestCode);
948    }
949
950    @Override
951    public void startSearch(String initialQuery, boolean selectInitialQuery,
952            Bundle appSearchData, boolean globalSearch) {
953
954        closeAllApps(true);
955
956        // Slide the search widget to the top, if it's on the current screen,
957        // otherwise show the search dialog immediately.
958        Search searchWidget = mWorkspace.findSearchWidgetOnCurrentScreen();
959        if (searchWidget == null) {
960            showSearchDialog(initialQuery, selectInitialQuery, appSearchData, globalSearch);
961        } else {
962            searchWidget.startSearch(initialQuery, selectInitialQuery, appSearchData, globalSearch);
963            // show the currently typed text in the search widget while sliding
964            searchWidget.setQuery(getTypedText());
965        }
966    }
967
968    /**
969     * Show the search dialog immediately, without changing the search widget.
970     *
971     * @see Activity#startSearch(String, boolean, android.os.Bundle, boolean)
972     */
973    void showSearchDialog(String initialQuery, boolean selectInitialQuery,
974            Bundle appSearchData, boolean globalSearch) {
975
976        if (initialQuery == null) {
977            // Use any text typed in the launcher as the initial query
978            initialQuery = getTypedText();
979            clearTypedText();
980        }
981        if (appSearchData == null) {
982            appSearchData = new Bundle();
983            appSearchData.putString(SearchManager.SOURCE, "launcher-search");
984        }
985
986        final SearchManager searchManager =
987                (SearchManager) getSystemService(Context.SEARCH_SERVICE);
988
989        final Search searchWidget = mWorkspace.findSearchWidgetOnCurrentScreen();
990        if (searchWidget != null) {
991            // This gets called when the user leaves the search dialog to go back to
992            // the Launcher.
993            searchManager.setOnCancelListener(new SearchManager.OnCancelListener() {
994                public void onCancel() {
995                    searchManager.setOnCancelListener(null);
996                    stopSearch();
997                }
998            });
999        }
1000
1001        searchManager.startSearch(initialQuery, selectInitialQuery, getComponentName(),
1002            appSearchData, globalSearch);
1003    }
1004
1005    /**
1006     * Cancel search dialog if it is open.
1007     */
1008    void stopSearch() {
1009        // Close search dialog
1010        SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
1011        searchManager.stopSearch();
1012        // Restore search widget to its normal position
1013        Search searchWidget = mWorkspace.findSearchWidgetOnCurrentScreen();
1014        if (searchWidget != null) {
1015            searchWidget.stopSearch(false);
1016        }
1017    }
1018
1019    @Override
1020    public boolean onCreateOptionsMenu(Menu menu) {
1021        if (isWorkspaceLocked()) {
1022            return false;
1023        }
1024
1025        super.onCreateOptionsMenu(menu);
1026        menu.add(MENU_GROUP_ADD, MENU_ADD, 0, R.string.menu_add)
1027                .setIcon(android.R.drawable.ic_menu_add)
1028                .setAlphabeticShortcut('A');
1029        menu.add(0, MENU_WALLPAPER_SETTINGS, 0, R.string.menu_wallpaper)
1030                 .setIcon(android.R.drawable.ic_menu_gallery)
1031                 .setAlphabeticShortcut('W');
1032        menu.add(0, MENU_SEARCH, 0, R.string.menu_search)
1033                .setIcon(android.R.drawable.ic_search_category_default)
1034                .setAlphabeticShortcut(SearchManager.MENU_KEY);
1035        menu.add(0, MENU_NOTIFICATIONS, 0, R.string.menu_notifications)
1036                .setIcon(com.android.internal.R.drawable.ic_menu_notifications)
1037                .setAlphabeticShortcut('N');
1038
1039        final Intent settings = new Intent(android.provider.Settings.ACTION_SETTINGS);
1040        settings.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
1041                Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
1042
1043        menu.add(0, MENU_SETTINGS, 0, R.string.menu_settings)
1044                .setIcon(android.R.drawable.ic_menu_preferences).setAlphabeticShortcut('P')
1045                .setIntent(settings);
1046
1047        return true;
1048    }
1049
1050    @Override
1051    public boolean onPrepareOptionsMenu(Menu menu) {
1052        super.onPrepareOptionsMenu(menu);
1053
1054        mMenuAddInfo = mWorkspace.findAllVacantCells(null);
1055        menu.setGroupEnabled(MENU_GROUP_ADD, mMenuAddInfo != null && mMenuAddInfo.valid);
1056
1057        return true;
1058    }
1059
1060    @Override
1061    public boolean onOptionsItemSelected(MenuItem item) {
1062        switch (item.getItemId()) {
1063            case MENU_ADD:
1064                addItems();
1065                return true;
1066            case MENU_WALLPAPER_SETTINGS:
1067                startWallpaper();
1068                return true;
1069            case MENU_SEARCH:
1070                onSearchRequested();
1071                return true;
1072            case MENU_NOTIFICATIONS:
1073                showNotifications();
1074                return true;
1075        }
1076
1077        return super.onOptionsItemSelected(item);
1078    }
1079
1080    /**
1081     * Indicates that we want global search for this activity by setting the globalSearch
1082     * argument for {@link #startSearch} to true.
1083     */
1084
1085    @Override
1086    public boolean onSearchRequested() {
1087        startSearch(null, false, null, true);
1088        return true;
1089    }
1090
1091    public boolean isWorkspaceLocked() {
1092        return mWorkspaceLoading || mWaitingForResult;
1093    }
1094
1095    private void addItems() {
1096        closeAllApps(true);
1097        showAddDialog(mMenuAddInfo);
1098    }
1099
1100    void addAppWidget(Intent data) {
1101        // TODO: catch bad widget exception when sent
1102        int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
1103
1104        String customWidget = data.getStringExtra(EXTRA_CUSTOM_WIDGET);
1105        if (SEARCH_WIDGET.equals(customWidget)) {
1106            // We don't need this any more, since this isn't a real app widget.
1107            mAppWidgetHost.deleteAppWidgetId(appWidgetId);
1108            // add the search widget
1109            addSearch();
1110        } else {
1111            AppWidgetProviderInfo appWidget = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
1112
1113            if (appWidget.configure != null) {
1114                // Launch over to configure widget, if needed
1115                Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_CONFIGURE);
1116                intent.setComponent(appWidget.configure);
1117                intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
1118
1119                startActivityForResult(intent, REQUEST_CREATE_APPWIDGET);
1120            } else {
1121                // Otherwise just add it
1122                onActivityResult(REQUEST_CREATE_APPWIDGET, Activity.RESULT_OK, data);
1123            }
1124        }
1125    }
1126
1127    void addSearch() {
1128        final Widget info = Widget.makeSearch();
1129        final CellLayout.CellInfo cellInfo = mAddItemCellInfo;
1130
1131        final int[] xy = mCellCoordinates;
1132        final int spanX = info.spanX;
1133        final int spanY = info.spanY;
1134
1135        if (!findSlot(cellInfo, xy, spanX, spanY)) return;
1136
1137        LauncherModel.addItemToDatabase(this, info, LauncherSettings.Favorites.CONTAINER_DESKTOP,
1138        mWorkspace.getCurrentScreen(), xy[0], xy[1], false);
1139
1140        final View view = mInflater.inflate(info.layoutResource, null);
1141        view.setTag(info);
1142        Search search = (Search) view.findViewById(R.id.widget_search);
1143        search.setLauncher(this);
1144
1145        mWorkspace.addInCurrentScreen(view, xy[0], xy[1], info.spanX, spanY);
1146    }
1147
1148    void processShortcut(Intent intent, int requestCodeApplication, int requestCodeShortcut) {
1149        // Handle case where user selected "Applications"
1150        String applicationName = getResources().getString(R.string.group_applications);
1151        String shortcutName = intent.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
1152
1153        if (applicationName != null && applicationName.equals(shortcutName)) {
1154            Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
1155            mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
1156
1157            Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
1158            pickIntent.putExtra(Intent.EXTRA_INTENT, mainIntent);
1159            startActivityForResult(pickIntent, requestCodeApplication);
1160        } else {
1161            startActivityForResult(intent, requestCodeShortcut);
1162        }
1163    }
1164
1165    void addLiveFolder(Intent intent) {
1166        // Handle case where user selected "Folder"
1167        String folderName = getResources().getString(R.string.group_folder);
1168        String shortcutName = intent.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
1169
1170        if (folderName != null && folderName.equals(shortcutName)) {
1171            addFolder();
1172        } else {
1173            startActivityForResult(intent, REQUEST_CREATE_LIVE_FOLDER);
1174        }
1175    }
1176
1177    void addFolder() {
1178        UserFolderInfo folderInfo = new UserFolderInfo();
1179        folderInfo.title = getText(R.string.folder_name);
1180
1181        CellLayout.CellInfo cellInfo = mAddItemCellInfo;
1182        cellInfo.screen = mWorkspace.getCurrentScreen();
1183        if (!findSingleSlot(cellInfo)) return;
1184
1185        // Update the model
1186        LauncherModel.addItemToDatabase(this, folderInfo,
1187                LauncherSettings.Favorites.CONTAINER_DESKTOP,
1188                mWorkspace.getCurrentScreen(), cellInfo.cellX, cellInfo.cellY, false);
1189        mFolders.put(folderInfo.id, folderInfo);
1190
1191        // Create the view
1192        FolderIcon newFolder = FolderIcon.fromXml(R.layout.folder_icon, this,
1193                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentScreen()), folderInfo);
1194        mWorkspace.addInCurrentScreen(newFolder,
1195                cellInfo.cellX, cellInfo.cellY, 1, 1, isWorkspaceLocked());
1196    }
1197
1198    void removeFolder(FolderInfo folder) {
1199        mFolders.remove(folder.id);
1200    }
1201
1202    private void completeAddLiveFolder(Intent data, CellLayout.CellInfo cellInfo) {
1203        cellInfo.screen = mWorkspace.getCurrentScreen();
1204        if (!findSingleSlot(cellInfo)) return;
1205
1206        final LiveFolderInfo info = addLiveFolder(this, data, cellInfo, false);
1207
1208        if (!mRestoring) {
1209            final View view = LiveFolderIcon.fromXml(R.layout.live_folder_icon, this,
1210                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentScreen()), info);
1211            mWorkspace.addInCurrentScreen(view, cellInfo.cellX, cellInfo.cellY, 1, 1,
1212                    isWorkspaceLocked());
1213        }
1214    }
1215
1216    static LiveFolderInfo addLiveFolder(Context context, Intent data,
1217            CellLayout.CellInfo cellInfo, boolean notify) {
1218
1219        Intent baseIntent = data.getParcelableExtra(LiveFolders.EXTRA_LIVE_FOLDER_BASE_INTENT);
1220        String name = data.getStringExtra(LiveFolders.EXTRA_LIVE_FOLDER_NAME);
1221
1222        Drawable icon = null;
1223        boolean filtered = false;
1224        Intent.ShortcutIconResource iconResource = null;
1225
1226        Parcelable extra = data.getParcelableExtra(LiveFolders.EXTRA_LIVE_FOLDER_ICON);
1227        if (extra != null && extra instanceof Intent.ShortcutIconResource) {
1228            try {
1229                iconResource = (Intent.ShortcutIconResource) extra;
1230                final PackageManager packageManager = context.getPackageManager();
1231                Resources resources = packageManager.getResourcesForApplication(
1232                        iconResource.packageName);
1233                final int id = resources.getIdentifier(iconResource.resourceName, null, null);
1234                icon = resources.getDrawable(id);
1235            } catch (Exception e) {
1236                Log.w(TAG, "Could not load live folder icon: " + extra);
1237            }
1238        }
1239
1240        if (icon == null) {
1241            icon = context.getResources().getDrawable(R.drawable.ic_launcher_folder);
1242        }
1243
1244        final LiveFolderInfo info = new LiveFolderInfo();
1245        info.icon = icon;
1246        info.filtered = filtered;
1247        info.title = name;
1248        info.iconResource = iconResource;
1249        info.uri = data.getData();
1250        info.baseIntent = baseIntent;
1251        info.displayMode = data.getIntExtra(LiveFolders.EXTRA_LIVE_FOLDER_DISPLAY_MODE,
1252                LiveFolders.DISPLAY_MODE_GRID);
1253
1254        LauncherModel.addItemToDatabase(context, info, LauncherSettings.Favorites.CONTAINER_DESKTOP,
1255                cellInfo.screen, cellInfo.cellX, cellInfo.cellY, notify);
1256        mFolders.put(info.id, info);
1257
1258        return info;
1259    }
1260
1261    private boolean findSingleSlot(CellLayout.CellInfo cellInfo) {
1262        final int[] xy = new int[2];
1263        if (findSlot(cellInfo, xy, 1, 1)) {
1264            cellInfo.cellX = xy[0];
1265            cellInfo.cellY = xy[1];
1266            return true;
1267        }
1268        return false;
1269    }
1270
1271    private boolean findSlot(CellLayout.CellInfo cellInfo, int[] xy, int spanX, int spanY) {
1272        if (!cellInfo.findCellForSpan(xy, spanX, spanY)) {
1273            boolean[] occupied = mSavedState != null ?
1274                    mSavedState.getBooleanArray(RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS) : null;
1275            cellInfo = mWorkspace.findAllVacantCells(occupied);
1276            if (!cellInfo.findCellForSpan(xy, spanX, spanY)) {
1277                Toast.makeText(this, getString(R.string.out_of_space), Toast.LENGTH_SHORT).show();
1278                return false;
1279            }
1280        }
1281        return true;
1282    }
1283
1284    private void showNotifications() {
1285        final StatusBarManager statusBar = (StatusBarManager) getSystemService(STATUS_BAR_SERVICE);
1286        if (statusBar != null) {
1287            statusBar.expand();
1288        }
1289    }
1290
1291    private void startWallpaper() {
1292        closeAllApps(true);
1293        final Intent pickWallpaper = new Intent(Intent.ACTION_SET_WALLPAPER);
1294        Intent chooser = Intent.createChooser(pickWallpaper,
1295                getText(R.string.chooser_wallpaper));
1296        // NOTE: Adds a configure option to the chooser if the wallpaper supports it
1297        //       Removed in Eclair MR1
1298//        WallpaperManager wm = (WallpaperManager)
1299//                getSystemService(Context.WALLPAPER_SERVICE);
1300//        WallpaperInfo wi = wm.getWallpaperInfo();
1301//        if (wi != null && wi.getSettingsActivity() != null) {
1302//            LabeledIntent li = new LabeledIntent(getPackageName(),
1303//                    R.string.configure_wallpaper, 0);
1304//            li.setClassName(wi.getPackageName(), wi.getSettingsActivity());
1305//            chooser.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Intent[] { li });
1306//        }
1307        startActivityForResult(chooser, REQUEST_PICK_WALLPAPER);
1308    }
1309
1310    /**
1311     * Registers various content observers. The current implementation registers
1312     * only a favorites observer to keep track of the favorites applications.
1313     */
1314    private void registerContentObservers() {
1315        ContentResolver resolver = getContentResolver();
1316        resolver.registerContentObserver(LauncherProvider.CONTENT_APPWIDGET_RESET_URI,
1317                true, mWidgetObserver);
1318    }
1319
1320    @Override
1321    public boolean dispatchKeyEvent(KeyEvent event) {
1322        if (event.getAction() == KeyEvent.ACTION_DOWN) {
1323            switch (event.getKeyCode()) {
1324                case KeyEvent.KEYCODE_HOME:
1325                    return true;
1326                case KeyEvent.KEYCODE_VOLUME_DOWN:
1327                    if (SystemProperties.getInt("debug.launcher2.dumpstate", 0) != 0) {
1328                        dumpState();
1329                        return true;
1330                    }
1331                    break;
1332            }
1333        } else if (event.getAction() == KeyEvent.ACTION_UP) {
1334            switch (event.getKeyCode()) {
1335                case KeyEvent.KEYCODE_HOME:
1336                    return true;
1337            }
1338        }
1339
1340        return super.dispatchKeyEvent(event);
1341    }
1342
1343    @Override
1344    public void onBackPressed() {
1345        if (isAllAppsVisible()) {
1346            closeAllApps(true);
1347        } else {
1348            closeFolder();
1349        }
1350        dismissPreview(mPreviousView);
1351        dismissPreview(mNextView);
1352    }
1353
1354    private void closeFolder() {
1355        Folder folder = mWorkspace.getOpenFolder();
1356        if (folder != null) {
1357            closeFolder(folder);
1358        }
1359    }
1360
1361    void closeFolder(Folder folder) {
1362        folder.getInfo().opened = false;
1363        ViewGroup parent = (ViewGroup) folder.getParent();
1364        if (parent != null) {
1365            parent.removeView(folder);
1366            if (folder instanceof DropTarget) {
1367                // Live folders aren't DropTargets.
1368                mDragController.removeDropTarget((DropTarget)folder);
1369            }
1370        }
1371        folder.onClose();
1372    }
1373
1374    /**
1375     * Re-listen when widgets are reset.
1376     */
1377    private void onAppWidgetReset() {
1378        mAppWidgetHost.startListening();
1379    }
1380
1381    /**
1382     * Go through the and disconnect any of the callbacks in the drawables and the views or we
1383     * leak the previous Home screen on orientation change.
1384     */
1385    private void unbindDesktopItems() {
1386        for (ItemInfo item: mDesktopItems) {
1387            item.unbind();
1388        }
1389    }
1390
1391    /**
1392     * Launches the intent referred by the clicked shortcut.
1393     *
1394     * @param v The view representing the clicked shortcut.
1395     */
1396    public void onClick(View v) {
1397        Object tag = v.getTag();
1398        if (tag instanceof ApplicationInfo) {
1399            // Open shortcut
1400            final Intent intent = ((ApplicationInfo) tag).intent;
1401            int[] pos = new int[2];
1402            v.getLocationOnScreen(pos);
1403            intent.setSourceBounds(
1404                    new Rect(pos[0], pos[1], pos[0]+v.getWidth(), pos[1]+v.getHeight()));
1405            startActivitySafely(intent);
1406        } else if (tag instanceof FolderInfo) {
1407            handleFolderClick((FolderInfo) tag);
1408        } else if (v == mHandleView) {
1409            if (isAllAppsVisible()) {
1410                closeAllApps(true);
1411            } else {
1412                showAllApps(true);
1413            }
1414        }
1415    }
1416
1417    void startActivitySafely(Intent intent) {
1418        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1419        try {
1420            startActivity(intent);
1421        } catch (ActivityNotFoundException e) {
1422            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
1423        } catch (SecurityException e) {
1424            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
1425            Log.e(TAG, "Launcher does not have the permission to launch " + intent +
1426                    ". Make sure to create a MAIN intent-filter for the corresponding activity " +
1427                    "or use the exported attribute for this activity.", e);
1428        }
1429    }
1430
1431    private void handleFolderClick(FolderInfo folderInfo) {
1432        if (!folderInfo.opened) {
1433            // Close any open folder
1434            closeFolder();
1435            // Open the requested folder
1436            openFolder(folderInfo);
1437        } else {
1438            // Find the open folder...
1439            Folder openFolder = mWorkspace.getFolderForTag(folderInfo);
1440            int folderScreen;
1441            if (openFolder != null) {
1442                folderScreen = mWorkspace.getScreenForView(openFolder);
1443                // .. and close it
1444                closeFolder(openFolder);
1445                if (folderScreen != mWorkspace.getCurrentScreen()) {
1446                    // Close any folder open on the current screen
1447                    closeFolder();
1448                    // Pull the folder onto this screen
1449                    openFolder(folderInfo);
1450                }
1451            }
1452        }
1453    }
1454
1455    /**
1456     * Opens the user fodler described by the specified tag. The opening of the folder
1457     * is animated relative to the specified View. If the View is null, no animation
1458     * is played.
1459     *
1460     * @param folderInfo The FolderInfo describing the folder to open.
1461     */
1462    private void openFolder(FolderInfo folderInfo) {
1463        Folder openFolder;
1464
1465        if (folderInfo instanceof UserFolderInfo) {
1466            openFolder = UserFolder.fromXml(this);
1467        } else if (folderInfo instanceof LiveFolderInfo) {
1468            openFolder = com.android.launcher2.LiveFolder.fromXml(this, folderInfo);
1469        } else {
1470            return;
1471        }
1472
1473        openFolder.setDragController(mDragController);
1474        openFolder.setLauncher(this);
1475
1476        openFolder.bind(folderInfo);
1477        folderInfo.opened = true;
1478
1479        mWorkspace.addInScreen(openFolder, folderInfo.screen, 0, 0, 4, 4);
1480        openFolder.onOpen();
1481    }
1482
1483    public boolean onLongClick(View v) {
1484        switch (v.getId()) {
1485            case R.id.previous_screen:
1486                if (!isAllAppsVisible()) {
1487                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
1488                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
1489                    showPreviousPreview(v);
1490                }
1491                return true;
1492            case R.id.next_screen:
1493                if (!isAllAppsVisible()) {
1494                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
1495                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
1496                    showNextPreview(v);
1497                }
1498                return true;
1499        }
1500
1501        if (isWorkspaceLocked()) {
1502            return false;
1503        }
1504
1505        if (!(v instanceof CellLayout)) {
1506            v = (View) v.getParent();
1507        }
1508
1509        CellLayout.CellInfo cellInfo = (CellLayout.CellInfo) v.getTag();
1510
1511        // This happens when long clicking an item with the dpad/trackball
1512        if (cellInfo == null) {
1513            return true;
1514        }
1515
1516        if (mWorkspace.allowLongPress()) {
1517            if (cellInfo.cell == null) {
1518                if (cellInfo.valid) {
1519                    // User long pressed on empty space
1520                    mWorkspace.setAllowLongPress(false);
1521                    showAddDialog(cellInfo);
1522                }
1523            } else {
1524                if (!(cellInfo.cell instanceof Folder)) {
1525                    // User long pressed on an item
1526                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
1527                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
1528                    mWorkspace.startDrag(cellInfo);
1529                }
1530            }
1531        }
1532        return true;
1533    }
1534
1535    @SuppressWarnings({"unchecked"})
1536    private void dismissPreview(final View v) {
1537        final PopupWindow window = (PopupWindow) v.getTag();
1538        if (window != null) {
1539            window.setOnDismissListener(new PopupWindow.OnDismissListener() {
1540                public void onDismiss() {
1541                    ViewGroup group = (ViewGroup) v.getTag(R.id.workspace);
1542                    int count = group.getChildCount();
1543                    for (int i = 0; i < count; i++) {
1544                        ((ImageView) group.getChildAt(i)).setImageDrawable(null);
1545                    }
1546                    ArrayList<Bitmap> bitmaps = (ArrayList<Bitmap>) v.getTag(R.id.icon);
1547                    for (Bitmap bitmap : bitmaps) bitmap.recycle();
1548
1549                    v.setTag(R.id.workspace, null);
1550                    v.setTag(R.id.icon, null);
1551                    window.setOnDismissListener(null);
1552                }
1553            });
1554            window.dismiss();
1555        }
1556        v.setTag(null);
1557    }
1558
1559    private void showPreviousPreview(View anchor) {
1560        int current = mWorkspace.getCurrentScreen();
1561        if (current <= 0) return;
1562
1563        showPreviews(anchor, 0, mWorkspace.getChildCount());
1564    }
1565
1566    private void showNextPreview(View anchor) {
1567        int current = mWorkspace.getCurrentScreen();
1568        if (current >= mWorkspace.getChildCount() - 1) return;
1569
1570        showPreviews(anchor, 0, mWorkspace.getChildCount());
1571    }
1572
1573    private void showPreviews(final View anchor, int start, int end) {
1574        Resources resources = getResources();
1575
1576        Workspace workspace = mWorkspace;
1577        CellLayout cell = ((CellLayout) workspace.getChildAt(start));
1578
1579        float max = workspace.getChildCount();
1580
1581        Rect r = new Rect();
1582        resources.getDrawable(R.drawable.preview_background).getPadding(r);
1583        int extraW = (int) ((r.left + r.right) * max);
1584        int extraH = r.top + r.bottom;
1585
1586        int aW = cell.getWidth() - extraW;
1587        float w = aW / max;
1588
1589        int width = cell.getWidth();
1590        int height = cell.getHeight();
1591        int x = cell.getLeftPadding();
1592        int y = cell.getTopPadding();
1593        width -= (x + cell.getRightPadding());
1594        height -= (y + cell.getBottomPadding());
1595
1596        float scale = w / width;
1597
1598        int count = end - start;
1599
1600        final float sWidth = width * scale;
1601        float sHeight = height * scale;
1602
1603        LinearLayout preview = new LinearLayout(this);
1604
1605        PreviewTouchHandler handler = new PreviewTouchHandler(anchor);
1606        ArrayList<Bitmap> bitmaps = new ArrayList<Bitmap>(count);
1607
1608        for (int i = start; i < end; i++) {
1609            ImageView image = new ImageView(this);
1610            cell = (CellLayout) workspace.getChildAt(i);
1611
1612            Bitmap bitmap = Bitmap.createBitmap((int) sWidth, (int) sHeight,
1613                    Bitmap.Config.ARGB_8888);
1614
1615            Canvas c = new Canvas(bitmap);
1616            c.scale(scale, scale);
1617            c.translate(-cell.getLeftPadding(), -cell.getTopPadding());
1618            cell.dispatchDraw(c);
1619
1620            image.setBackgroundDrawable(resources.getDrawable(R.drawable.preview_background));
1621            image.setImageBitmap(bitmap);
1622            image.setTag(i);
1623            image.setOnClickListener(handler);
1624            image.setOnFocusChangeListener(handler);
1625            image.setFocusable(true);
1626            if (i == mWorkspace.getCurrentScreen()) image.requestFocus();
1627
1628            preview.addView(image,
1629                    LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
1630
1631            bitmaps.add(bitmap);
1632        }
1633
1634        PopupWindow p = new PopupWindow(this);
1635        p.setContentView(preview);
1636        p.setWidth((int) (sWidth * count + extraW));
1637        p.setHeight((int) (sHeight + extraH));
1638        p.setAnimationStyle(R.style.AnimationPreview);
1639        p.setOutsideTouchable(true);
1640        p.setFocusable(true);
1641        p.setBackgroundDrawable(new ColorDrawable(0));
1642        p.showAsDropDown(anchor, 0, 0);
1643
1644        p.setOnDismissListener(new PopupWindow.OnDismissListener() {
1645            public void onDismiss() {
1646                dismissPreview(anchor);
1647            }
1648        });
1649
1650        anchor.setTag(p);
1651        anchor.setTag(R.id.workspace, preview);
1652        anchor.setTag(R.id.icon, bitmaps);
1653    }
1654
1655    class PreviewTouchHandler implements View.OnClickListener, Runnable, View.OnFocusChangeListener {
1656        private final View mAnchor;
1657
1658        public PreviewTouchHandler(View anchor) {
1659            mAnchor = anchor;
1660        }
1661
1662        public void onClick(View v) {
1663            mWorkspace.snapToScreen((Integer) v.getTag());
1664            v.post(this);
1665        }
1666
1667        public void run() {
1668            dismissPreview(mAnchor);
1669        }
1670
1671        public void onFocusChange(View v, boolean hasFocus) {
1672            if (hasFocus) {
1673                mWorkspace.snapToScreen((Integer) v.getTag());
1674            }
1675        }
1676    }
1677
1678    View getDrawerHandle() {
1679        return mHandleView;
1680    }
1681
1682    Workspace getWorkspace() {
1683        return mWorkspace;
1684    }
1685
1686    @Override
1687    protected Dialog onCreateDialog(int id) {
1688        switch (id) {
1689            case DIALOG_CREATE_SHORTCUT:
1690                return new CreateShortcut().createDialog();
1691            case DIALOG_RENAME_FOLDER:
1692                return new RenameFolder().createDialog();
1693        }
1694
1695        return super.onCreateDialog(id);
1696    }
1697
1698    @Override
1699    protected void onPrepareDialog(int id, Dialog dialog) {
1700        switch (id) {
1701            case DIALOG_CREATE_SHORTCUT:
1702                break;
1703            case DIALOG_RENAME_FOLDER:
1704                if (mFolderInfo != null) {
1705                    EditText input = (EditText) dialog.findViewById(R.id.folder_name);
1706                    final CharSequence text = mFolderInfo.title;
1707                    input.setText(text);
1708                    input.setSelection(0, text.length());
1709                }
1710                break;
1711        }
1712    }
1713
1714    void showRenameDialog(FolderInfo info) {
1715        mFolderInfo = info;
1716        mWaitingForResult = true;
1717        showDialog(DIALOG_RENAME_FOLDER);
1718    }
1719
1720    private void showAddDialog(CellLayout.CellInfo cellInfo) {
1721        mAddItemCellInfo = cellInfo;
1722        mWaitingForResult = true;
1723        showDialog(DIALOG_CREATE_SHORTCUT);
1724    }
1725
1726    private void pickShortcut(int requestCode, int title) {
1727        Bundle bundle = new Bundle();
1728
1729        ArrayList<String> shortcutNames = new ArrayList<String>();
1730        shortcutNames.add(getString(R.string.group_applications));
1731        bundle.putStringArrayList(Intent.EXTRA_SHORTCUT_NAME, shortcutNames);
1732
1733        ArrayList<ShortcutIconResource> shortcutIcons = new ArrayList<ShortcutIconResource>();
1734        shortcutIcons.add(ShortcutIconResource.fromContext(Launcher.this,
1735                        R.drawable.ic_launcher_application));
1736        bundle.putParcelableArrayList(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, shortcutIcons);
1737
1738        Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
1739        pickIntent.putExtra(Intent.EXTRA_INTENT, new Intent(Intent.ACTION_CREATE_SHORTCUT));
1740        pickIntent.putExtra(Intent.EXTRA_TITLE, getText(title));
1741        pickIntent.putExtras(bundle);
1742
1743        startActivityForResult(pickIntent, requestCode);
1744    }
1745
1746    private class RenameFolder {
1747        private EditText mInput;
1748
1749        Dialog createDialog() {
1750            mWaitingForResult = true;
1751            final View layout = View.inflate(Launcher.this, R.layout.rename_folder, null);
1752            mInput = (EditText) layout.findViewById(R.id.folder_name);
1753
1754            AlertDialog.Builder builder = new AlertDialog.Builder(Launcher.this);
1755            builder.setIcon(0);
1756            builder.setTitle(getString(R.string.rename_folder_title));
1757            builder.setCancelable(true);
1758            builder.setOnCancelListener(new Dialog.OnCancelListener() {
1759                public void onCancel(DialogInterface dialog) {
1760                    cleanup();
1761                }
1762            });
1763            builder.setNegativeButton(getString(R.string.cancel_action),
1764                new Dialog.OnClickListener() {
1765                    public void onClick(DialogInterface dialog, int which) {
1766                        cleanup();
1767                    }
1768                }
1769            );
1770            builder.setPositiveButton(getString(R.string.rename_action),
1771                new Dialog.OnClickListener() {
1772                    public void onClick(DialogInterface dialog, int which) {
1773                        changeFolderName();
1774                    }
1775                }
1776            );
1777            builder.setView(layout);
1778
1779            final AlertDialog dialog = builder.create();
1780            dialog.setOnShowListener(new DialogInterface.OnShowListener() {
1781                public void onShow(DialogInterface dialog) {
1782                    mInput.requestFocus();
1783                    InputMethodManager inputManager = (InputMethodManager)
1784                            getSystemService(Context.INPUT_METHOD_SERVICE);
1785                    inputManager.showSoftInput(mInput, 0);
1786                }
1787            });
1788
1789            return dialog;
1790        }
1791
1792        private void changeFolderName() {
1793            final String name = mInput.getText().toString();
1794            if (!TextUtils.isEmpty(name)) {
1795                // Make sure we have the right folder info
1796                mFolderInfo = mFolders.get(mFolderInfo.id);
1797                mFolderInfo.title = name;
1798                LauncherModel.updateItemInDatabase(Launcher.this, mFolderInfo);
1799
1800                if (mWorkspaceLoading) {
1801                    lockAllApps();
1802                    mModel.setWorkspaceDirty();
1803                    mModel.startLoader(Launcher.this, false);
1804                } else {
1805                    final FolderIcon folderIcon = (FolderIcon)
1806                            mWorkspace.getViewForTag(mFolderInfo);
1807                    if (folderIcon != null) {
1808                        folderIcon.setText(name);
1809                        getWorkspace().requestLayout();
1810                    } else {
1811                        lockAllApps();
1812                        mModel.setWorkspaceDirty();
1813                        mWorkspaceLoading = true;
1814                        mModel.startLoader(Launcher.this, false);
1815                    }
1816                }
1817            }
1818            cleanup();
1819        }
1820
1821        private void cleanup() {
1822            dismissDialog(DIALOG_RENAME_FOLDER);
1823            mWaitingForResult = false;
1824            mFolderInfo = null;
1825        }
1826    }
1827
1828    boolean isAllAppsVisible() {
1829        return mAllAppsGrid.isVisible();
1830    }
1831
1832    boolean isAllAppsOpaque() {
1833        return mAllAppsGrid.isOpaque();
1834    }
1835
1836    void showAllApps(boolean animated) {
1837        mAllAppsGrid.zoom(1.0f, animated);
1838        //mWorkspace.hide();
1839
1840        mWorkspace.startFading(false);
1841
1842        mAllAppsGrid.setFocusable(true);
1843        mAllAppsGrid.requestFocus();
1844
1845        // TODO: fade these two too
1846        mDeleteZone.setVisibility(View.GONE);
1847        //mHandleView.setVisibility(View.GONE);
1848    }
1849
1850    /**
1851     * Things to test when changing this code.
1852     *   - Home from workspace
1853     *          - from center screen
1854     *          - from other screens
1855     *   - Home from all apps
1856     *          - from center screen
1857     *          - from other screens
1858     *   - Back from all apps
1859     *          - from center screen
1860     *          - from other screens
1861     *   - Launch app from workspace and quit
1862     *          - with back
1863     *          - with home
1864     *   - Launch app from all apps and quit
1865     *          - with back
1866     *          - with home
1867     *   - Go to a screen that's not the default, then all
1868     *     apps, and launch and app, and go back
1869     *          - with back
1870     *          -with home
1871     *   - On workspace, long press power and go back
1872     *          - with back
1873     *          - with home
1874     *   - On all apps, long press power and go back
1875     *          - with back
1876     *          - with home
1877     *   - On workspace, power off
1878     *   - On all apps, power off
1879     *   - Launch an app and turn off the screen while in that app
1880     *          - Go back with home key
1881     *          - Go back with back key  TODO: make this not go to workspace
1882     *          - From all apps
1883     *          - From workspace
1884     */
1885    void closeAllApps(boolean animated) {
1886        if (mAllAppsGrid.isVisible()) {
1887            mAllAppsGrid.zoom(0.0f, animated);
1888            mAllAppsGrid.setFocusable(false);
1889            mWorkspace.getChildAt(mWorkspace.getCurrentScreen()).requestFocus();
1890            mWorkspace.startFading(true);
1891
1892            // TODO: fade these two too
1893            /*
1894            mDeleteZone.setVisibility(View.VISIBLE);
1895            mHandleView.setVisibility(View.VISIBLE);
1896            */
1897        }
1898    }
1899
1900    void lockAllApps() {
1901        // TODO
1902    }
1903
1904    void unlockAllApps() {
1905        // TODO
1906    }
1907
1908    /**
1909     * Displays the shortcut creation dialog and launches, if necessary, the
1910     * appropriate activity.
1911     */
1912    private class CreateShortcut implements DialogInterface.OnClickListener,
1913            DialogInterface.OnCancelListener, DialogInterface.OnDismissListener,
1914            DialogInterface.OnShowListener {
1915
1916        private AddAdapter mAdapter;
1917
1918        Dialog createDialog() {
1919            mWaitingForResult = true;
1920
1921            mAdapter = new AddAdapter(Launcher.this);
1922
1923            final AlertDialog.Builder builder = new AlertDialog.Builder(Launcher.this);
1924            builder.setTitle(getString(R.string.menu_item_add_item));
1925            builder.setAdapter(mAdapter, this);
1926
1927            builder.setInverseBackgroundForced(true);
1928
1929            AlertDialog dialog = builder.create();
1930            dialog.setOnCancelListener(this);
1931            dialog.setOnDismissListener(this);
1932            dialog.setOnShowListener(this);
1933
1934            return dialog;
1935        }
1936
1937        public void onCancel(DialogInterface dialog) {
1938            mWaitingForResult = false;
1939            cleanup();
1940        }
1941
1942        public void onDismiss(DialogInterface dialog) {
1943        }
1944
1945        private void cleanup() {
1946            try {
1947                dismissDialog(DIALOG_CREATE_SHORTCUT);
1948            } catch (Exception e) {
1949                // An exception is thrown if the dialog is not visible, which is fine
1950            }
1951        }
1952
1953        /**
1954         * Handle the action clicked in the "Add to home" dialog.
1955         */
1956        public void onClick(DialogInterface dialog, int which) {
1957            Resources res = getResources();
1958            cleanup();
1959
1960            switch (which) {
1961                case AddAdapter.ITEM_SHORTCUT: {
1962                    // Insert extra item to handle picking application
1963                    pickShortcut(REQUEST_PICK_SHORTCUT, R.string.title_select_shortcut);
1964                    break;
1965                }
1966
1967                case AddAdapter.ITEM_APPWIDGET: {
1968                    int appWidgetId = Launcher.this.mAppWidgetHost.allocateAppWidgetId();
1969
1970                    Intent pickIntent = new Intent(AppWidgetManager.ACTION_APPWIDGET_PICK);
1971                    pickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
1972                    // add the search widget
1973                    ArrayList<AppWidgetProviderInfo> customInfo =
1974                            new ArrayList<AppWidgetProviderInfo>();
1975                    AppWidgetProviderInfo info = new AppWidgetProviderInfo();
1976                    info.provider = new ComponentName(getPackageName(), "XXX.YYY");
1977                    info.label = getString(R.string.group_search);
1978                    info.icon = R.drawable.ic_search_widget;
1979                    customInfo.add(info);
1980                    pickIntent.putParcelableArrayListExtra(
1981                            AppWidgetManager.EXTRA_CUSTOM_INFO, customInfo);
1982                    ArrayList<Bundle> customExtras = new ArrayList<Bundle>();
1983                    Bundle b = new Bundle();
1984                    b.putString(EXTRA_CUSTOM_WIDGET, SEARCH_WIDGET);
1985                    customExtras.add(b);
1986                    pickIntent.putParcelableArrayListExtra(
1987                            AppWidgetManager.EXTRA_CUSTOM_EXTRAS, customExtras);
1988                    // start the pick activity
1989                    startActivityForResult(pickIntent, REQUEST_PICK_APPWIDGET);
1990                    break;
1991                }
1992
1993                case AddAdapter.ITEM_LIVE_FOLDER: {
1994                    // Insert extra item to handle inserting folder
1995                    Bundle bundle = new Bundle();
1996
1997                    ArrayList<String> shortcutNames = new ArrayList<String>();
1998                    shortcutNames.add(res.getString(R.string.group_folder));
1999                    bundle.putStringArrayList(Intent.EXTRA_SHORTCUT_NAME, shortcutNames);
2000
2001                    ArrayList<ShortcutIconResource> shortcutIcons =
2002                            new ArrayList<ShortcutIconResource>();
2003                    shortcutIcons.add(ShortcutIconResource.fromContext(Launcher.this,
2004                            R.drawable.ic_launcher_folder));
2005                    bundle.putParcelableArrayList(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, shortcutIcons);
2006
2007                    Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
2008                    pickIntent.putExtra(Intent.EXTRA_INTENT,
2009                            new Intent(LiveFolders.ACTION_CREATE_LIVE_FOLDER));
2010                    pickIntent.putExtra(Intent.EXTRA_TITLE,
2011                            getText(R.string.title_select_live_folder));
2012                    pickIntent.putExtras(bundle);
2013
2014                    startActivityForResult(pickIntent, REQUEST_PICK_LIVE_FOLDER);
2015                    break;
2016                }
2017
2018                case AddAdapter.ITEM_WALLPAPER: {
2019                    startWallpaper();
2020                    break;
2021                }
2022            }
2023        }
2024
2025        public void onShow(DialogInterface dialog) {
2026        }
2027    }
2028
2029    /**
2030     * Receives notifications when applications are added/removed.
2031     */
2032    private class CloseSystemDialogsIntentReceiver extends BroadcastReceiver {
2033        @Override
2034        public void onReceive(Context context, Intent intent) {
2035            closeSystemDialogs();
2036            String reason = intent.getStringExtra("reason");
2037            if (!"homekey".equals(reason)) {
2038                boolean animate = true;
2039                if (mPaused || "lock".equals(reason)) {
2040                    animate = false;
2041                }
2042                closeAllApps(animate);
2043            }
2044        }
2045    }
2046
2047    /**
2048     * Receives notifications whenever the appwidgets are reset.
2049     */
2050    private class AppWidgetResetObserver extends ContentObserver {
2051        public AppWidgetResetObserver() {
2052            super(new Handler());
2053        }
2054
2055        @Override
2056        public void onChange(boolean selfChange) {
2057            onAppWidgetReset();
2058        }
2059    }
2060
2061    /**
2062     * Implementation of the method from LauncherModel.Callbacks.
2063     */
2064    public int getCurrentWorkspaceScreen() {
2065        return mWorkspace.getCurrentScreen();
2066    }
2067
2068    /**
2069     * Refreshes the shortcuts shown on the workspace.
2070     *
2071     * Implementation of the method from LauncherModel.Callbacks.
2072     */
2073    public void startBinding() {
2074        final Workspace workspace = mWorkspace;
2075        int count = workspace.getChildCount();
2076        for (int i = 0; i < count; i++) {
2077            // Use removeAllViewsInLayout() to avoid an extra requestLayout() and invalidate().
2078            ((ViewGroup) workspace.getChildAt(i)).removeAllViewsInLayout();
2079        }
2080
2081        if (DEBUG_USER_INTERFACE) {
2082            android.widget.Button finishButton = new android.widget.Button(this);
2083            finishButton.setText("Finish");
2084            workspace.addInScreen(finishButton, 1, 0, 0, 1, 1);
2085
2086            finishButton.setOnClickListener(new android.widget.Button.OnClickListener() {
2087                public void onClick(View v) {
2088                    finish();
2089                }
2090            });
2091        }
2092    }
2093
2094    /**
2095     * Bind the items start-end from the list.
2096     *
2097     * Implementation of the method from LauncherModel.Callbacks.
2098     */
2099    public void bindItems(ArrayList<ItemInfo> shortcuts, int start, int end) {
2100
2101        final Workspace workspace = mWorkspace;
2102
2103        for (int i=start; i<end; i++) {
2104            final ItemInfo item = shortcuts.get(i);
2105            mDesktopItems.add(item);
2106            switch (item.itemType) {
2107                case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
2108                case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
2109                    final View shortcut = createShortcut((ApplicationInfo) item);
2110                    workspace.addInScreen(shortcut, item.screen, item.cellX, item.cellY, 1, 1,
2111                            false);
2112                    break;
2113                case LauncherSettings.Favorites.ITEM_TYPE_USER_FOLDER:
2114                    final FolderIcon newFolder = FolderIcon.fromXml(R.layout.folder_icon, this,
2115                            (ViewGroup) workspace.getChildAt(workspace.getCurrentScreen()),
2116                            (UserFolderInfo) item);
2117                    workspace.addInScreen(newFolder, item.screen, item.cellX, item.cellY, 1, 1,
2118                            false);
2119                    break;
2120                case LauncherSettings.Favorites.ITEM_TYPE_LIVE_FOLDER:
2121                    final FolderIcon newLiveFolder = LiveFolderIcon.fromXml(
2122                            R.layout.live_folder_icon, this,
2123                            (ViewGroup) workspace.getChildAt(workspace.getCurrentScreen()),
2124                            (LiveFolderInfo) item);
2125                    workspace.addInScreen(newLiveFolder, item.screen, item.cellX, item.cellY, 1, 1,
2126                            false);
2127                    break;
2128                case LauncherSettings.Favorites.ITEM_TYPE_WIDGET_SEARCH:
2129                    final int screen = workspace.getCurrentScreen();
2130                    final View view = mInflater.inflate(R.layout.widget_search,
2131                            (ViewGroup) workspace.getChildAt(screen), false);
2132
2133                    Search search = (Search) view.findViewById(R.id.widget_search);
2134                    search.setLauncher(this);
2135
2136                    final Widget widget = (Widget) item;
2137                    view.setTag(widget);
2138
2139                    workspace.addWidget(view, widget, false);
2140                    break;
2141            }
2142        }
2143
2144        workspace.requestLayout();
2145    }
2146
2147    /**
2148     * Implementation of the method from LauncherModel.Callbacks.
2149     */
2150    public void bindFolders(HashMap<Long, FolderInfo> folders) {
2151        mFolders.clear();
2152        mFolders.putAll(folders);
2153    }
2154
2155    /**
2156     * Add the views for a widget to the workspace.
2157     *
2158     * Implementation of the method from LauncherModel.Callbacks.
2159     */
2160    public void bindAppWidget(LauncherAppWidgetInfo item) {
2161        final Workspace workspace = mWorkspace;
2162
2163        final int appWidgetId = item.appWidgetId;
2164        final AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
2165        item.hostView = mAppWidgetHost.createView(this, appWidgetId, appWidgetInfo);
2166
2167        item.hostView.setAppWidget(appWidgetId, appWidgetInfo);
2168        item.hostView.setTag(item);
2169
2170        workspace.addInScreen(item.hostView, item.screen, item.cellX,
2171                item.cellY, item.spanX, item.spanY, false);
2172
2173        workspace.requestLayout();
2174
2175        mDesktopItems.add(item);
2176    }
2177
2178    /**
2179     * Callback saying that there aren't any more items to bind.
2180     *
2181     * Implementation of the method from LauncherModel.Callbacks.
2182     */
2183    public void finishBindingItems() {
2184        if (mSavedState != null) {
2185            if (!mWorkspace.hasFocus()) {
2186                mWorkspace.getChildAt(mWorkspace.getCurrentScreen()).requestFocus();
2187            }
2188
2189            final long[] userFolders = mSavedState.getLongArray(RUNTIME_STATE_USER_FOLDERS);
2190            if (userFolders != null) {
2191                for (long folderId : userFolders) {
2192                    final FolderInfo info = mFolders.get(folderId);
2193                    if (info != null) {
2194                        openFolder(info);
2195                    }
2196                }
2197                final Folder openFolder = mWorkspace.getOpenFolder();
2198                if (openFolder != null) {
2199                    openFolder.requestFocus();
2200                }
2201            }
2202
2203            mSavedState = null;
2204        }
2205
2206        if (mSavedInstanceState != null) {
2207            super.onRestoreInstanceState(mSavedInstanceState);
2208            mSavedInstanceState = null;
2209        }
2210
2211        mWorkspaceLoading = false;
2212    }
2213
2214    /**
2215     * Add the icons for all apps.
2216     *
2217     * Implementation of the method from LauncherModel.Callbacks.
2218     */
2219    public void bindAllApplications(ArrayList<ApplicationInfo> apps) {
2220        mAllAppsGrid.setApps(apps);
2221    }
2222
2223    /**
2224     * A package was installed.
2225     *
2226     * Implementation of the method from LauncherModel.Callbacks.
2227     */
2228    public void bindPackageAdded(ArrayList<ApplicationInfo> apps) {
2229        removeDialog(DIALOG_CREATE_SHORTCUT);
2230        mAllAppsGrid.addApps(apps);
2231    }
2232
2233    /**
2234     * A package was updated.
2235     *
2236     * Implementation of the method from LauncherModel.Callbacks.
2237     */
2238    public void bindPackageUpdated(String packageName, ArrayList<ApplicationInfo> apps) {
2239        removeDialog(DIALOG_CREATE_SHORTCUT);
2240        mWorkspace.updateShortcutsForPackage(packageName);
2241        mAllAppsGrid.updateApps(packageName, apps);
2242    }
2243
2244    /**
2245     * A package was uninstalled.
2246     *
2247     * Implementation of the method from LauncherModel.Callbacks.
2248     */
2249    public void bindPackageRemoved(String packageName, ArrayList<ApplicationInfo> apps) {
2250        removeDialog(DIALOG_CREATE_SHORTCUT);
2251        mWorkspace.removeShortcutsForPackage(packageName);
2252        mAllAppsGrid.removeApps(apps);
2253    }
2254
2255    /**
2256     * Prints out out state for debugging.
2257     */
2258    public void dumpState() {
2259        Log.d(TAG, "BEGIN launcher2 dump state for launcher " + this);
2260        Log.d(TAG, "mSavedState=" + mSavedState);
2261        Log.d(TAG, "mIsNewIntent=" + mIsNewIntent);
2262        Log.d(TAG, "mWorkspaceLoading=" + mWorkspaceLoading);
2263        Log.d(TAG, "mRestoring=" + mRestoring);
2264        Log.d(TAG, "mWaitingForResult=" + mWaitingForResult);
2265        Log.d(TAG, "mSavedInstanceState=" + mSavedInstanceState);
2266        Log.d(TAG, "mDesktopItems.size=" + mDesktopItems.size());
2267        Log.d(TAG, "mFolders.size=" + mFolders.size());
2268        mModel.dumpState();
2269        mAllAppsGrid.dumpState();
2270        Log.d(TAG, "END launcher2 dump state");
2271    }
2272}
2273