Launcher.java revision 39bfc13a77b25aa9e1dc322b223030545c9af2c1 
1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.launcher2;
18
19import android.app.Activity;
20import android.app.AlertDialog;
21import android.app.Dialog;
22import android.app.ISearchManager;
23import android.app.SearchManager;
24import android.app.StatusBarManager;
25import android.app.WallpaperManager;
26import android.content.ActivityNotFoundException;
27import android.content.BroadcastReceiver;
28import android.content.ComponentName;
29import android.content.ContentResolver;
30import android.content.Context;
31import android.content.DialogInterface;
32import android.content.Intent;
33import android.content.Intent.ShortcutIconResource;
34import android.content.IntentFilter;
35import android.content.pm.ActivityInfo;
36import android.content.pm.PackageManager;
37import android.content.pm.PackageManager.NameNotFoundException;
38import android.content.res.Configuration;
39import android.content.res.Resources;
40import android.database.ContentObserver;
41import android.graphics.Bitmap;
42import android.graphics.Rect;
43import android.graphics.Canvas;
44import android.graphics.drawable.Drawable;
45import android.graphics.drawable.ColorDrawable;
46import android.os.Bundle;
47import android.os.Handler;
48import android.os.Parcelable;
49import android.os.RemoteException;
50import android.os.ServiceManager;
51import android.os.SystemProperties;
52import android.provider.LiveFolders;
53import android.text.Selection;
54import android.text.SpannableStringBuilder;
55import android.text.TextUtils;
56import android.text.method.TextKeyListener;
57import android.util.Log;
58import android.view.Display;
59import android.view.HapticFeedbackConstants;
60import android.view.KeyEvent;
61import android.view.LayoutInflater;
62import android.view.Menu;
63import android.view.MenuItem;
64import android.view.View;
65import android.view.ViewGroup;
66import android.view.View.OnLongClickListener;
67import android.view.inputmethod.InputMethodManager;
68import android.widget.EditText;
69import android.widget.TextView;
70import android.widget.Toast;
71import android.widget.ImageView;
72import android.widget.PopupWindow;
73import android.widget.LinearLayout;
74import android.appwidget.AppWidgetManager;
75import android.appwidget.AppWidgetProviderInfo;
76
77import java.util.ArrayList;
78import java.util.HashMap;
79import java.io.DataOutputStream;
80import java.io.FileNotFoundException;
81import java.io.IOException;
82import java.io.DataInputStream;
83
84/**
85 * Default launcher application.
86 */
87public final class Launcher extends Activity
88        implements View.OnClickListener, OnLongClickListener, LauncherModel.Callbacks {
89    static final String TAG = "Launcher";
90    static final boolean LOGD = false;
91
92    static final boolean PROFILE_STARTUP = false;
93    static final boolean PROFILE_ROTATE = false;
94    static final boolean DEBUG_USER_INTERFACE = false;
95
96    private static final int WALLPAPER_SCREENS_SPAN = 2;
97
98    private static final int MENU_GROUP_ADD = 1;
99    private static final int MENU_ADD = Menu.FIRST + 1;
100    private static final int MENU_WALLPAPER_SETTINGS = MENU_ADD + 1;
101    private static final int MENU_SEARCH = MENU_WALLPAPER_SETTINGS + 1;
102    private static final int MENU_NOTIFICATIONS = MENU_SEARCH + 1;
103    private static final int MENU_SETTINGS = MENU_NOTIFICATIONS + 1;
104
105    private static final int REQUEST_CREATE_SHORTCUT = 1;
106    private static final int REQUEST_CREATE_LIVE_FOLDER = 4;
107    private static final int REQUEST_CREATE_APPWIDGET = 5;
108    private static final int REQUEST_PICK_APPLICATION = 6;
109    private static final int REQUEST_PICK_SHORTCUT = 7;
110    private static final int REQUEST_PICK_LIVE_FOLDER = 8;
111    private static final int REQUEST_PICK_APPWIDGET = 9;
112    private static final int REQUEST_PICK_WALLPAPER = 10;
113
114    static final String EXTRA_SHORTCUT_DUPLICATE = "duplicate";
115
116    static final String EXTRA_CUSTOM_WIDGET = "custom_widget";
117    static final String SEARCH_WIDGET = "search_widget";
118
119    static final int SCREEN_COUNT = 5;
120    static final int DEFAULT_SCREEN = 2;
121    static final int NUMBER_CELLS_X = 4;
122    static final int NUMBER_CELLS_Y = 4;
123
124    static final int DIALOG_CREATE_SHORTCUT = 1;
125    static final int DIALOG_RENAME_FOLDER = 2;
126
127    private static final String PREFERENCES = "launcher.preferences";
128
129    // Type: int
130    private static final String RUNTIME_STATE_CURRENT_SCREEN = "launcher.current_screen";
131    // Type: boolean
132    private static final String RUNTIME_STATE_ALL_APPS_FOLDER = "launcher.all_apps_folder";
133    // Type: long
134    private static final String RUNTIME_STATE_USER_FOLDERS = "launcher.user_folder";
135    // Type: int
136    private static final String RUNTIME_STATE_PENDING_ADD_SCREEN = "launcher.add_screen";
137    // Type: int
138    private static final String RUNTIME_STATE_PENDING_ADD_CELL_X = "launcher.add_cellX";
139    // Type: int
140    private static final String RUNTIME_STATE_PENDING_ADD_CELL_Y = "launcher.add_cellY";
141    // Type: int
142    private static final String RUNTIME_STATE_PENDING_ADD_SPAN_X = "launcher.add_spanX";
143    // Type: int
144    private static final String RUNTIME_STATE_PENDING_ADD_SPAN_Y = "launcher.add_spanY";
145    // Type: int
146    private static final String RUNTIME_STATE_PENDING_ADD_COUNT_X = "launcher.add_countX";
147    // Type: int
148    private static final String RUNTIME_STATE_PENDING_ADD_COUNT_Y = "launcher.add_countY";
149    // Type: int[]
150    private static final String RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS = "launcher.add_occupied_cells";
151    // Type: boolean
152    private static final String RUNTIME_STATE_PENDING_FOLDER_RENAME = "launcher.rename_folder";
153    // Type: long
154    private static final String RUNTIME_STATE_PENDING_FOLDER_RENAME_ID = "launcher.rename_folder_id";
155
156    static final int APPWIDGET_HOST_ID = 1024;
157
158    private static final Object sLock = new Object();
159    private static int sScreen = DEFAULT_SCREEN;
160
161    private final BroadcastReceiver mCloseSystemDialogsReceiver
162            = new CloseSystemDialogsIntentReceiver();
163    private final ContentObserver mWidgetObserver = new AppWidgetResetObserver();
164
165    private LayoutInflater mInflater;
166
167    private DragController mDragController;
168    private Workspace mWorkspace;
169
170    private AppWidgetManager mAppWidgetManager;
171    private LauncherAppWidgetHost mAppWidgetHost;
172
173    private CellLayout.CellInfo mAddItemCellInfo;
174    private CellLayout.CellInfo mMenuAddInfo;
175    private final int[] mCellCoordinates = new int[2];
176    private FolderInfo mFolderInfo;
177
178    private DeleteZone mDeleteZone;
179    private HandleView mHandleView;
180    private AllAppsView mAllAppsGrid;
181
182    private Bundle mSavedState;
183
184    private SpannableStringBuilder mDefaultKeySsb = null;
185
186    private boolean mIsNewIntent;
187
188    private boolean mWorkspaceLoading = true;
189
190    private boolean mRestoring;
191    private boolean mWaitingForResult;
192
193    private Bundle mSavedInstanceState;
194
195    private LauncherModel mModel;
196
197    private ArrayList<ItemInfo> mDesktopItems = new ArrayList<ItemInfo>();
198    private static HashMap<Long, FolderInfo> mFolders = new HashMap<Long, FolderInfo>();
199
200    private ImageView mPreviousView;
201    private ImageView mNextView;
202
203    @Override
204    protected void onCreate(Bundle savedInstanceState) {
205        super.onCreate(savedInstanceState);
206
207        mModel = ((LauncherApplication)getApplication()).setLauncher(this);
208        mDragController = new DragController(this);
209        mInflater = getLayoutInflater();
210
211        IntentFilter filter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
212        registerReceiver(mCloseSystemDialogsReceiver, filter);
213
214        mAppWidgetManager = AppWidgetManager.getInstance(this);
215        mAppWidgetHost = new LauncherAppWidgetHost(this, APPWIDGET_HOST_ID);
216        mAppWidgetHost.startListening();
217
218        if (PROFILE_STARTUP) {
219            android.os.Debug.startMethodTracing("/sdcard/launcher");
220        }
221
222        checkForLocaleChange();
223        setWallpaperDimension();
224
225        setContentView(R.layout.launcher);
226        setupViews();
227
228        registerContentObservers();
229
230        lockAllApps();
231
232        mSavedState = savedInstanceState;
233        restoreState(mSavedState);
234
235        if (PROFILE_STARTUP) {
236            android.os.Debug.stopMethodTracing();
237        }
238
239        // We have a new AllAppsView, we need to re-bind everything, and it could have
240        // changed in our absence.
241        mModel.setAllAppsDirty();
242        mModel.setWorkspaceDirty();
243
244        if (!mRestoring) {
245            mModel.startLoader(this, true);
246        }
247
248        // For handling default keys
249        mDefaultKeySsb = new SpannableStringBuilder();
250        Selection.setSelection(mDefaultKeySsb, 0);
251    }
252
253    private void checkForLocaleChange() {
254        final LocaleConfiguration localeConfiguration = new LocaleConfiguration();
255        readConfiguration(this, localeConfiguration);
256
257        final Configuration configuration = getResources().getConfiguration();
258
259        final String previousLocale = localeConfiguration.locale;
260        final String locale = configuration.locale.toString();
261
262        final int previousMcc = localeConfiguration.mcc;
263        final int mcc = configuration.mcc;
264
265        final int previousMnc = localeConfiguration.mnc;
266        final int mnc = configuration.mnc;
267
268        boolean localeChanged = !locale.equals(previousLocale) || mcc != previousMcc || mnc != previousMnc;
269
270        if (localeChanged) {
271            localeConfiguration.locale = locale;
272            localeConfiguration.mcc = mcc;
273            localeConfiguration.mnc = mnc;
274
275            writeConfiguration(this, localeConfiguration);
276            AppInfoCache.flush();
277        }
278    }
279
280    private static class LocaleConfiguration {
281        public String locale;
282        public int mcc = -1;
283        public int mnc = -1;
284    }
285
286    private static void readConfiguration(Context context, LocaleConfiguration configuration) {
287        DataInputStream in = null;
288        try {
289            in = new DataInputStream(context.openFileInput(PREFERENCES));
290            configuration.locale = in.readUTF();
291            configuration.mcc = in.readInt();
292            configuration.mnc = in.readInt();
293        } catch (FileNotFoundException e) {
294            // Ignore
295        } catch (IOException e) {
296            // Ignore
297        } finally {
298            if (in != null) {
299                try {
300                    in.close();
301                } catch (IOException e) {
302                    // Ignore
303                }
304            }
305        }
306    }
307
308    private static void writeConfiguration(Context context, LocaleConfiguration configuration) {
309        DataOutputStream out = null;
310        try {
311            out = new DataOutputStream(context.openFileOutput(PREFERENCES, MODE_PRIVATE));
312            out.writeUTF(configuration.locale);
313            out.writeInt(configuration.mcc);
314            out.writeInt(configuration.mnc);
315            out.flush();
316        } catch (FileNotFoundException e) {
317            // Ignore
318        } catch (IOException e) {
319            //noinspection ResultOfMethodCallIgnored
320            context.getFileStreamPath(PREFERENCES).delete();
321        } finally {
322            if (out != null) {
323                try {
324                    out.close();
325                } catch (IOException e) {
326                    // Ignore
327                }
328            }
329        }
330    }
331
332    static int getScreen() {
333        synchronized (sLock) {
334            return sScreen;
335        }
336    }
337
338    static void setScreen(int screen) {
339        synchronized (sLock) {
340            sScreen = screen;
341        }
342    }
343
344    private void setWallpaperDimension() {
345        WallpaperManager wpm = (WallpaperManager)getSystemService(WALLPAPER_SERVICE);
346
347        Display display = getWindowManager().getDefaultDisplay();
348        boolean isPortrait = display.getWidth() < display.getHeight();
349
350        final int width = isPortrait ? display.getWidth() : display.getHeight();
351        final int height = isPortrait ? display.getHeight() : display.getWidth();
352        wpm.suggestDesiredDimensions(width * WALLPAPER_SCREENS_SPAN, height);
353    }
354
355    @Override
356    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
357        mWaitingForResult = false;
358
359        // The pattern used here is that a user PICKs a specific application,
360        // which, depending on the target, might need to CREATE the actual target.
361
362        // For example, the user would PICK_SHORTCUT for "Music playlist", and we
363        // launch over to the Music app to actually CREATE_SHORTCUT.
364
365        if (resultCode == RESULT_OK && mAddItemCellInfo != null) {
366            switch (requestCode) {
367                case REQUEST_PICK_APPLICATION:
368                    completeAddApplication(this, data, mAddItemCellInfo);
369                    break;
370                case REQUEST_PICK_SHORTCUT:
371                    processShortcut(data, REQUEST_PICK_APPLICATION, REQUEST_CREATE_SHORTCUT);
372                    break;
373                case REQUEST_CREATE_SHORTCUT:
374                    completeAddShortcut(data, mAddItemCellInfo);
375                    break;
376                case REQUEST_PICK_LIVE_FOLDER:
377                    addLiveFolder(data);
378                    break;
379                case REQUEST_CREATE_LIVE_FOLDER:
380                    completeAddLiveFolder(data, mAddItemCellInfo);
381                    break;
382                case REQUEST_PICK_APPWIDGET:
383                    addAppWidget(data);
384                    break;
385                case REQUEST_CREATE_APPWIDGET:
386                    completeAddAppWidget(data, mAddItemCellInfo);
387                    break;
388                case REQUEST_PICK_WALLPAPER:
389                    // We just wanted the activity result here so we can clear mWaitingForResult
390                    break;
391            }
392        } else if ((requestCode == REQUEST_PICK_APPWIDGET ||
393                requestCode == REQUEST_CREATE_APPWIDGET) && resultCode == RESULT_CANCELED &&
394                data != null) {
395            // Clean up the appWidgetId if we canceled
396            int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
397            if (appWidgetId != -1) {
398                mAppWidgetHost.deleteAppWidgetId(appWidgetId);
399            }
400        }
401    }
402
403    @Override
404    protected void onResume() {
405        super.onResume();
406
407        if (mRestoring) {
408            mWorkspaceLoading = true;
409            mModel.startLoader(this, true);
410            mRestoring = false;
411        }
412
413        // If this was a new intent (i.e., the mIsNewIntent flag got set to true by
414        // onNewIntent), then close the search dialog if needed, because it probably
415        // came from the user pressing 'home' (rather than, for example, pressing 'back').
416        if (mIsNewIntent) {
417            // Post to a handler so that this happens after the search dialog tries to open
418            // itself again.
419            mWorkspace.post(new Runnable() {
420                public void run() {
421                    ISearchManager searchManagerService = ISearchManager.Stub.asInterface(
422                            ServiceManager.getService(Context.SEARCH_SERVICE));
423                    try {
424                        searchManagerService.stopSearch();
425                    } catch (RemoteException e) {
426                        Log.e(TAG, "error stopping search", e);
427                    }
428                }
429            });
430        }
431
432        mIsNewIntent = false;
433    }
434
435    @Override
436    protected void onPause() {
437        super.onPause();
438        dismissPreview(mPreviousView);
439        dismissPreview(mNextView);
440        mDragController.cancelDrag();
441    }
442
443    @Override
444    public Object onRetainNonConfigurationInstance() {
445        // Flag the loader to stop early before switching
446        mModel.stopLoader();
447
448        if (PROFILE_ROTATE) {
449            android.os.Debug.startMethodTracing("/sdcard/launcher-rotate");
450        }
451        return null;
452    }
453
454    private boolean acceptFilter() {
455        final InputMethodManager inputManager = (InputMethodManager)
456                getSystemService(Context.INPUT_METHOD_SERVICE);
457        return !inputManager.isFullscreenMode();
458    }
459
460    @Override
461    public boolean onKeyDown(int keyCode, KeyEvent event) {
462        boolean handled = super.onKeyDown(keyCode, event);
463        if (!handled && acceptFilter() && keyCode != KeyEvent.KEYCODE_ENTER) {
464            boolean gotKey = TextKeyListener.getInstance().onKeyDown(mWorkspace, mDefaultKeySsb,
465                    keyCode, event);
466            if (gotKey && mDefaultKeySsb != null && mDefaultKeySsb.length() > 0) {
467                // something usable has been typed - start a search
468                // the typed text will be retrieved and cleared by
469                // showSearchDialog()
470                // If there are multiple keystrokes before the search dialog takes focus,
471                // onSearchRequested() will be called for every keystroke,
472                // but it is idempotent, so it's fine.
473                return onSearchRequested();
474            }
475        }
476
477        return handled;
478    }
479
480    private String getTypedText() {
481        return mDefaultKeySsb.toString();
482    }
483
484    private void clearTypedText() {
485        mDefaultKeySsb.clear();
486        mDefaultKeySsb.clearSpans();
487        Selection.setSelection(mDefaultKeySsb, 0);
488    }
489
490    /**
491     * Restores the previous state, if it exists.
492     *
493     * @param savedState The previous state.
494     */
495    private void restoreState(Bundle savedState) {
496        if (savedState == null) {
497            return;
498        }
499
500        final boolean allApps = savedState.getBoolean(RUNTIME_STATE_ALL_APPS_FOLDER, false);
501        if (allApps) {
502            showAllApps(false);
503        }
504
505        final int currentScreen = savedState.getInt(RUNTIME_STATE_CURRENT_SCREEN, -1);
506        if (currentScreen > -1) {
507            mWorkspace.setCurrentScreen(currentScreen);
508        }
509
510        final int addScreen = savedState.getInt(RUNTIME_STATE_PENDING_ADD_SCREEN, -1);
511        if (addScreen > -1) {
512            mAddItemCellInfo = new CellLayout.CellInfo();
513            final CellLayout.CellInfo addItemCellInfo = mAddItemCellInfo;
514            addItemCellInfo.valid = true;
515            addItemCellInfo.screen = addScreen;
516            addItemCellInfo.cellX = savedState.getInt(RUNTIME_STATE_PENDING_ADD_CELL_X);
517            addItemCellInfo.cellY = savedState.getInt(RUNTIME_STATE_PENDING_ADD_CELL_Y);
518            addItemCellInfo.spanX = savedState.getInt(RUNTIME_STATE_PENDING_ADD_SPAN_X);
519            addItemCellInfo.spanY = savedState.getInt(RUNTIME_STATE_PENDING_ADD_SPAN_Y);
520            addItemCellInfo.findVacantCellsFromOccupied(
521                    savedState.getBooleanArray(RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS),
522                    savedState.getInt(RUNTIME_STATE_PENDING_ADD_COUNT_X),
523                    savedState.getInt(RUNTIME_STATE_PENDING_ADD_COUNT_Y));
524            mRestoring = true;
525        }
526
527        boolean renameFolder = savedState.getBoolean(RUNTIME_STATE_PENDING_FOLDER_RENAME, false);
528        if (renameFolder) {
529            long id = savedState.getLong(RUNTIME_STATE_PENDING_FOLDER_RENAME_ID);
530            mFolderInfo = mModel.getFolderById(this, mFolders, id);
531            mRestoring = true;
532        }
533    }
534
535    /**
536     * Finds all the views we need and configure them properly.
537     */
538    private void setupViews() {
539        DragController dragController = mDragController;
540
541        DragLayer dragLayer = (DragLayer) findViewById(R.id.drag_layer);
542        dragLayer.setDragController(dragController);
543
544        mAllAppsGrid = (AllAppsView)dragLayer.findViewById(R.id.all_apps_view);
545        mAllAppsGrid.setLauncher(this);
546        mAllAppsGrid.setDragController(dragController);
547        mAllAppsGrid.setWillNotDraw(false); // We don't want a hole punched in our window.
548        // Manage focusability manually since this thing is always visible
549        mAllAppsGrid.setFocusable(false);
550
551        mWorkspace = (Workspace) dragLayer.findViewById(R.id.workspace);
552        final Workspace workspace = mWorkspace;
553
554        DeleteZone deleteZone = (DeleteZone) dragLayer.findViewById(R.id.delete_zone);
555        mDeleteZone = deleteZone;
556
557        mHandleView = (HandleView) findViewById(R.id.all_apps_button);
558        mHandleView.setLauncher(this);
559        mHandleView.setOnClickListener(this);
560
561        mPreviousView = (ImageView) dragLayer.findViewById(R.id.previous_screen);
562        mNextView = (ImageView) dragLayer.findViewById(R.id.next_screen);
563
564        Drawable previous = mPreviousView.getDrawable();
565        Drawable next = mNextView.getDrawable();
566        mWorkspace.setIndicators(previous, next);
567
568        mPreviousView.setHapticFeedbackEnabled(false);
569        mPreviousView.setOnLongClickListener(this);
570        mNextView.setHapticFeedbackEnabled(false);
571        mNextView.setOnLongClickListener(this);
572
573        workspace.setOnLongClickListener(this);
574        workspace.setDragController(dragController);
575        workspace.setLauncher(this);
576
577        deleteZone.setLauncher(this);
578        deleteZone.setDragController(dragController);
579        deleteZone.setHandle(mHandleView);
580
581        dragController.setDragScoller(workspace);
582        dragController.setDragListener(deleteZone);
583        dragController.setScrollView(dragLayer);
584
585        // The order here is bottom to top.
586        dragController.addDropTarget(workspace);
587        dragController.addDropTarget(deleteZone);
588    }
589
590    @SuppressWarnings({"UnusedDeclaration"})
591    public void previousScreen(View v) {
592        mWorkspace.scrollLeft();
593    }
594
595    @SuppressWarnings({"UnusedDeclaration"})
596    public void nextScreen(View v) {
597        mWorkspace.scrollRight();
598    }
599
600    /**
601     * Creates a view representing a shortcut.
602     *
603     * @param info The data structure describing the shortcut.
604     *
605     * @return A View inflated from R.layout.application.
606     */
607    View createShortcut(ApplicationInfo info) {
608        return createShortcut(R.layout.application,
609                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentScreen()), info);
610    }
611
612    /**
613     * Creates a view representing a shortcut inflated from the specified resource.
614     *
615     * @param layoutResId The id of the XML layout used to create the shortcut.
616     * @param parent The group the shortcut belongs to.
617     * @param info The data structure describing the shortcut.
618     *
619     * @return A View inflated from layoutResId.
620     */
621    View createShortcut(int layoutResId, ViewGroup parent, ApplicationInfo info) {
622        TextView favorite = (TextView) mInflater.inflate(layoutResId, parent, false);
623
624        if (info.icon == null) {
625            info.icon = AppInfoCache.getIconDrawable(getPackageManager(), info);
626        }
627        if (!info.filtered) {
628            info.icon = Utilities.createIconThumbnail(info.icon, this);
629            info.filtered = true;
630        }
631
632        favorite.setCompoundDrawablesWithIntrinsicBounds(null, info.icon, null, null);
633        favorite.setText(info.title);
634        favorite.setTag(info);
635        favorite.setOnClickListener(this);
636
637        return favorite;
638    }
639
640    /**
641     * Add an application shortcut to the workspace.
642     *
643     * @param data The intent describing the application.
644     * @param cellInfo The position on screen where to create the shortcut.
645     */
646    void completeAddApplication(Context context, Intent data, CellLayout.CellInfo cellInfo) {
647        cellInfo.screen = mWorkspace.getCurrentScreen();
648        if (!findSingleSlot(cellInfo)) return;
649
650        final ApplicationInfo info = infoFromApplicationIntent(context, data);
651        if (info != null) {
652            mWorkspace.addApplicationShortcut(info, cellInfo, isWorkspaceLocked());
653        }
654    }
655
656    private static ApplicationInfo infoFromApplicationIntent(Context context, Intent data) {
657        ComponentName component = data.getComponent();
658        PackageManager packageManager = context.getPackageManager();
659        ActivityInfo activityInfo = null;
660        try {
661            activityInfo = packageManager.getActivityInfo(component, 0 /* no flags */);
662        } catch (NameNotFoundException e) {
663            Log.e(TAG, "Couldn't find ActivityInfo for selected application", e);
664        }
665
666        if (activityInfo != null) {
667            ApplicationInfo itemInfo = new ApplicationInfo();
668
669            itemInfo.title = activityInfo.loadLabel(packageManager);
670            if (itemInfo.title == null) {
671                itemInfo.title = activityInfo.name;
672            }
673
674            itemInfo.setActivity(component, Intent.FLAG_ACTIVITY_NEW_TASK |
675                    Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
676            itemInfo.icon = activityInfo.loadIcon(packageManager);
677            itemInfo.container = ItemInfo.NO_ID;
678
679            return itemInfo;
680        }
681
682        return null;
683    }
684
685    /**
686     * Add a shortcut to the workspace.
687     *
688     * @param data The intent describing the shortcut.
689     * @param cellInfo The position on screen where to create the shortcut.
690     */
691    private void completeAddShortcut(Intent data, CellLayout.CellInfo cellInfo) {
692        cellInfo.screen = mWorkspace.getCurrentScreen();
693        if (!findSingleSlot(cellInfo)) return;
694
695        final ApplicationInfo info = addShortcut(this, data, cellInfo, false);
696
697        if (!mRestoring) {
698            final View view = createShortcut(info);
699            mWorkspace.addInCurrentScreen(view, cellInfo.cellX, cellInfo.cellY, 1, 1,
700                    isWorkspaceLocked());
701        }
702    }
703
704
705    /**
706     * Add a widget to the workspace.
707     *
708     * @param data The intent describing the appWidgetId.
709     * @param cellInfo The position on screen where to create the widget.
710     */
711    private void completeAddAppWidget(Intent data, CellLayout.CellInfo cellInfo) {
712        Bundle extras = data.getExtras();
713        int appWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
714
715        if (LOGD) Log.d(TAG, "dumping extras content=" + extras.toString());
716
717        AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
718
719        // Calculate the grid spans needed to fit this widget
720        CellLayout layout = (CellLayout) mWorkspace.getChildAt(cellInfo.screen);
721        int[] spans = layout.rectToCell(appWidgetInfo.minWidth, appWidgetInfo.minHeight);
722
723        // Try finding open space on Launcher screen
724        final int[] xy = mCellCoordinates;
725        if (!findSlot(cellInfo, xy, spans[0], spans[1])) {
726            if (appWidgetId != -1) mAppWidgetHost.deleteAppWidgetId(appWidgetId);
727            return;
728        }
729
730        // Build Launcher-specific widget info and save to database
731        LauncherAppWidgetInfo launcherInfo = new LauncherAppWidgetInfo(appWidgetId);
732        launcherInfo.spanX = spans[0];
733        launcherInfo.spanY = spans[1];
734
735        LauncherModel.addItemToDatabase(this, launcherInfo,
736                LauncherSettings.Favorites.CONTAINER_DESKTOP,
737                mWorkspace.getCurrentScreen(), xy[0], xy[1], false);
738
739        if (!mRestoring) {
740            mDesktopItems.add(launcherInfo);
741
742            // Perform actual inflation because we're live
743            launcherInfo.hostView = mAppWidgetHost.createView(this, appWidgetId, appWidgetInfo);
744
745            launcherInfo.hostView.setAppWidget(appWidgetId, appWidgetInfo);
746            launcherInfo.hostView.setTag(launcherInfo);
747
748            mWorkspace.addInCurrentScreen(launcherInfo.hostView, xy[0], xy[1],
749                    launcherInfo.spanX, launcherInfo.spanY, isWorkspaceLocked());
750        }
751    }
752
753    public void removeAppWidget(LauncherAppWidgetInfo launcherInfo) {
754        mDesktopItems.remove(launcherInfo);
755        launcherInfo.hostView = null;
756    }
757
758    public LauncherAppWidgetHost getAppWidgetHost() {
759        return mAppWidgetHost;
760    }
761
762    static ApplicationInfo addShortcut(Context context, Intent data,
763            CellLayout.CellInfo cellInfo, boolean notify) {
764
765        final ApplicationInfo info = infoFromShortcutIntent(context, data);
766        LauncherModel.addItemToDatabase(context, info, LauncherSettings.Favorites.CONTAINER_DESKTOP,
767                cellInfo.screen, cellInfo.cellX, cellInfo.cellY, notify);
768
769        return info;
770    }
771
772    private static ApplicationInfo infoFromShortcutIntent(Context context, Intent data) {
773        Intent intent = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_INTENT);
774        String name = data.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
775        Bitmap bitmap = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_ICON);
776
777        Drawable icon = null;
778        boolean filtered = false;
779        boolean customIcon = false;
780        ShortcutIconResource iconResource = null;
781
782        if (bitmap != null) {
783            icon = new FastBitmapDrawable(Utilities.createBitmapThumbnail(bitmap, context));
784            filtered = true;
785            customIcon = true;
786        } else {
787            Parcelable extra = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE);
788            if (extra != null && extra instanceof ShortcutIconResource) {
789                try {
790                    iconResource = (ShortcutIconResource) extra;
791                    final PackageManager packageManager = context.getPackageManager();
792                    Resources resources = packageManager.getResourcesForApplication(
793                            iconResource.packageName);
794                    final int id = resources.getIdentifier(iconResource.resourceName, null, null);
795                    icon = resources.getDrawable(id);
796                } catch (Exception e) {
797                    Log.w(TAG, "Could not load shortcut icon: " + extra);
798                }
799            }
800        }
801
802        if (icon == null) {
803            icon = context.getPackageManager().getDefaultActivityIcon();
804        }
805
806        final ApplicationInfo info = new ApplicationInfo();
807        info.icon = icon;
808        info.filtered = filtered;
809        info.title = name;
810        info.intent = intent;
811        info.customIcon = customIcon;
812        info.iconResource = iconResource;
813
814        return info;
815    }
816
817    void closeSystemDialogs() {
818        closeAllApps(false);
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
836    @Override
837    protected void onNewIntent(Intent intent) {
838        super.onNewIntent(intent);
839
840        // Close the menu
841        if (Intent.ACTION_MAIN.equals(intent.getAction())) {
842            closeSystemDialogs();
843
844            // Whatever we were doing is hereby canceled.
845            mWaitingForResult = false;
846
847            // Set this flag so that onResume knows to close the search dialog if it's open,
848            // because this was a new intent (thus a press of 'home' or some such) rather than
849            // for example onResume being called when the user pressed the 'back' button.
850            mIsNewIntent = true;
851
852            if (!mWorkspace.isDefaultScreenShowing()) {
853                mWorkspace.moveToDefaultScreen();
854            }
855
856            closeAllApps(false);
857
858            final View v = getWindow().peekDecorView();
859            if (v != null && v.getWindowToken() != null) {
860                InputMethodManager imm = (InputMethodManager)getSystemService(
861                        INPUT_METHOD_SERVICE);
862                imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
863            }
864        }
865    }
866
867    @Override
868    protected void onRestoreInstanceState(Bundle savedInstanceState) {
869        // Do not call super here
870        mSavedInstanceState = savedInstanceState;
871    }
872
873    @Override
874    protected void onSaveInstanceState(Bundle outState) {
875        outState.putInt(RUNTIME_STATE_CURRENT_SCREEN, mWorkspace.getCurrentScreen());
876
877        final ArrayList<Folder> folders = mWorkspace.getOpenFolders();
878        if (folders.size() > 0) {
879            final int count = folders.size();
880            long[] ids = new long[count];
881            for (int i = 0; i < count; i++) {
882                final FolderInfo info = folders.get(i).getInfo();
883                ids[i] = info.id;
884            }
885            outState.putLongArray(RUNTIME_STATE_USER_FOLDERS, ids);
886        } else {
887            super.onSaveInstanceState(outState);
888        }
889
890        // TODO should not do this if the drawer is currently closing.
891        if (isAllAppsVisible()) {
892            outState.putBoolean(RUNTIME_STATE_ALL_APPS_FOLDER, true);
893        }
894
895        if (mAddItemCellInfo != null && mAddItemCellInfo.valid && mWaitingForResult) {
896            final CellLayout.CellInfo addItemCellInfo = mAddItemCellInfo;
897            final CellLayout layout = (CellLayout) mWorkspace.getChildAt(addItemCellInfo.screen);
898
899            outState.putInt(RUNTIME_STATE_PENDING_ADD_SCREEN, addItemCellInfo.screen);
900            outState.putInt(RUNTIME_STATE_PENDING_ADD_CELL_X, addItemCellInfo.cellX);
901            outState.putInt(RUNTIME_STATE_PENDING_ADD_CELL_Y, addItemCellInfo.cellY);
902            outState.putInt(RUNTIME_STATE_PENDING_ADD_SPAN_X, addItemCellInfo.spanX);
903            outState.putInt(RUNTIME_STATE_PENDING_ADD_SPAN_Y, addItemCellInfo.spanY);
904            outState.putInt(RUNTIME_STATE_PENDING_ADD_COUNT_X, layout.getCountX());
905            outState.putInt(RUNTIME_STATE_PENDING_ADD_COUNT_Y, layout.getCountY());
906            outState.putBooleanArray(RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS,
907                   layout.getOccupiedCells());
908        }
909
910        if (mFolderInfo != null && mWaitingForResult) {
911            outState.putBoolean(RUNTIME_STATE_PENDING_FOLDER_RENAME, true);
912            outState.putLong(RUNTIME_STATE_PENDING_FOLDER_RENAME_ID, mFolderInfo.id);
913        }
914    }
915
916    @Override
917    public void onDestroy() {
918        super.onDestroy();
919
920        try {
921            mAppWidgetHost.stopListening();
922        } catch (NullPointerException ex) {
923            Log.w(TAG, "problem while stopping AppWidgetHost during Launcher destruction", ex);
924        }
925
926        TextKeyListener.getInstance().release();
927
928        mModel.stopLoader();
929
930        unbindDesktopItems();
931        AppInfoCache.unbindDrawables();
932
933        getContentResolver().unregisterContentObserver(mWidgetObserver);
934
935        dismissPreview(mPreviousView);
936        dismissPreview(mNextView);
937
938        unregisterReceiver(mCloseSystemDialogsReceiver);
939    }
940
941    @Override
942    public void startActivityForResult(Intent intent, int requestCode) {
943        if (requestCode >= 0) mWaitingForResult = true;
944        super.startActivityForResult(intent, requestCode);
945    }
946
947    @Override
948    public void startSearch(String initialQuery, boolean selectInitialQuery,
949            Bundle appSearchData, boolean globalSearch) {
950
951        closeAllApps(true);
952
953        // Slide the search widget to the top, if it's on the current screen,
954        // otherwise show the search dialog immediately.
955        Search searchWidget = mWorkspace.findSearchWidgetOnCurrentScreen();
956        if (searchWidget == null) {
957            showSearchDialog(initialQuery, selectInitialQuery, appSearchData, globalSearch);
958        } else {
959            searchWidget.startSearch(initialQuery, selectInitialQuery, appSearchData, globalSearch);
960            // show the currently typed text in the search widget while sliding
961            searchWidget.setQuery(getTypedText());
962        }
963    }
964
965    /**
966     * Show the search dialog immediately, without changing the search widget.
967     *
968     * @see Activity#startSearch(String, boolean, android.os.Bundle, boolean)
969     */
970    void showSearchDialog(String initialQuery, boolean selectInitialQuery,
971            Bundle appSearchData, boolean globalSearch) {
972
973        if (initialQuery == null) {
974            // Use any text typed in the launcher as the initial query
975            initialQuery = getTypedText();
976            clearTypedText();
977        }
978        if (appSearchData == null) {
979            appSearchData = new Bundle();
980            appSearchData.putString(SearchManager.SOURCE, "launcher-search");
981        }
982
983        final SearchManager searchManager =
984                (SearchManager) getSystemService(Context.SEARCH_SERVICE);
985
986        final Search searchWidget = mWorkspace.findSearchWidgetOnCurrentScreen();
987        if (searchWidget != null) {
988            // This gets called when the user leaves the search dialog to go back to
989            // the Launcher.
990            searchManager.setOnCancelListener(new SearchManager.OnCancelListener() {
991                public void onCancel() {
992                    searchManager.setOnCancelListener(null);
993                    stopSearch();
994                }
995            });
996        }
997
998        searchManager.startSearch(initialQuery, selectInitialQuery, getComponentName(),
999            appSearchData, globalSearch);
1000    }
1001
1002    /**
1003     * Cancel search dialog if it is open.
1004     */
1005    void stopSearch() {
1006        // Close search dialog
1007        SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
1008        searchManager.stopSearch();
1009        // Restore search widget to its normal position
1010        Search searchWidget = mWorkspace.findSearchWidgetOnCurrentScreen();
1011        if (searchWidget != null) {
1012            searchWidget.stopSearch(false);
1013        }
1014    }
1015
1016    @Override
1017    public boolean onCreateOptionsMenu(Menu menu) {
1018        if (isWorkspaceLocked()) {
1019            return false;
1020        }
1021
1022        super.onCreateOptionsMenu(menu);
1023        menu.add(MENU_GROUP_ADD, MENU_ADD, 0, R.string.menu_add)
1024                .setIcon(android.R.drawable.ic_menu_add)
1025                .setAlphabeticShortcut('A');
1026        menu.add(0, MENU_WALLPAPER_SETTINGS, 0, R.string.menu_wallpaper)
1027                 .setIcon(android.R.drawable.ic_menu_gallery)
1028                 .setAlphabeticShortcut('W');
1029        menu.add(0, MENU_SEARCH, 0, R.string.menu_search)
1030                .setIcon(android.R.drawable.ic_search_category_default)
1031                .setAlphabeticShortcut(SearchManager.MENU_KEY);
1032        menu.add(0, MENU_NOTIFICATIONS, 0, R.string.menu_notifications)
1033                .setIcon(com.android.internal.R.drawable.ic_menu_notifications)
1034                .setAlphabeticShortcut('N');
1035
1036        final Intent settings = new Intent(android.provider.Settings.ACTION_SETTINGS);
1037        settings.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
1038                Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
1039
1040        menu.add(0, MENU_SETTINGS, 0, R.string.menu_settings)
1041                .setIcon(android.R.drawable.ic_menu_preferences).setAlphabeticShortcut('P')
1042                .setIntent(settings);
1043
1044        return true;
1045    }
1046
1047    @Override
1048    public boolean onPrepareOptionsMenu(Menu menu) {
1049        super.onPrepareOptionsMenu(menu);
1050
1051        mMenuAddInfo = mWorkspace.findAllVacantCells(null);
1052        menu.setGroupEnabled(MENU_GROUP_ADD, mMenuAddInfo != null && mMenuAddInfo.valid);
1053
1054        return true;
1055    }
1056
1057    @Override
1058    public boolean onOptionsItemSelected(MenuItem item) {
1059        switch (item.getItemId()) {
1060            case MENU_ADD:
1061                addItems();
1062                return true;
1063            case MENU_WALLPAPER_SETTINGS:
1064                startWallpaper();
1065                return true;
1066            case MENU_SEARCH:
1067                onSearchRequested();
1068                return true;
1069            case MENU_NOTIFICATIONS:
1070                showNotifications();
1071                return true;
1072        }
1073
1074        return super.onOptionsItemSelected(item);
1075    }
1076
1077    /**
1078     * Indicates that we want global search for this activity by setting the globalSearch
1079     * argument for {@link #startSearch} to true.
1080     */
1081
1082    @Override
1083    public boolean onSearchRequested() {
1084        startSearch(null, false, null, true);
1085        return true;
1086    }
1087
1088    public boolean isWorkspaceLocked() {
1089        return mWorkspaceLoading || mWaitingForResult;
1090    }
1091
1092    private void addItems() {
1093        closeAllApps(true);
1094        showAddDialog(mMenuAddInfo);
1095    }
1096
1097    void addAppWidget(Intent data) {
1098        // TODO: catch bad widget exception when sent
1099        int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
1100
1101        String customWidget = data.getStringExtra(EXTRA_CUSTOM_WIDGET);
1102        if (SEARCH_WIDGET.equals(customWidget)) {
1103            // We don't need this any more, since this isn't a real app widget.
1104            mAppWidgetHost.deleteAppWidgetId(appWidgetId);
1105            // add the search widget
1106            addSearch();
1107        } else {
1108            AppWidgetProviderInfo appWidget = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
1109
1110            if (appWidget.configure != null) {
1111                // Launch over to configure widget, if needed
1112                Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_CONFIGURE);
1113                intent.setComponent(appWidget.configure);
1114                intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
1115
1116                startActivityForResult(intent, REQUEST_CREATE_APPWIDGET);
1117            } else {
1118                // Otherwise just add it
1119                onActivityResult(REQUEST_CREATE_APPWIDGET, Activity.RESULT_OK, data);
1120            }
1121        }
1122    }
1123
1124    void addSearch() {
1125        final Widget info = Widget.makeSearch();
1126        final CellLayout.CellInfo cellInfo = mAddItemCellInfo;
1127
1128        final int[] xy = mCellCoordinates;
1129        final int spanX = info.spanX;
1130        final int spanY = info.spanY;
1131
1132        if (!findSlot(cellInfo, xy, spanX, spanY)) return;
1133
1134        LauncherModel.addItemToDatabase(this, info, LauncherSettings.Favorites.CONTAINER_DESKTOP,
1135        mWorkspace.getCurrentScreen(), xy[0], xy[1], false);
1136
1137        final View view = mInflater.inflate(info.layoutResource, null);
1138        view.setTag(info);
1139        Search search = (Search) view.findViewById(R.id.widget_search);
1140        search.setLauncher(this);
1141
1142        mWorkspace.addInCurrentScreen(view, xy[0], xy[1], info.spanX, spanY);
1143    }
1144
1145    void processShortcut(Intent intent, int requestCodeApplication, int requestCodeShortcut) {
1146        // Handle case where user selected "Applications"
1147        String applicationName = getResources().getString(R.string.group_applications);
1148        String shortcutName = intent.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
1149
1150        if (applicationName != null && applicationName.equals(shortcutName)) {
1151            Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
1152            mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
1153
1154            Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
1155            pickIntent.putExtra(Intent.EXTRA_INTENT, mainIntent);
1156            startActivityForResult(pickIntent, requestCodeApplication);
1157        } else {
1158            startActivityForResult(intent, requestCodeShortcut);
1159        }
1160    }
1161
1162    void addLiveFolder(Intent intent) {
1163        // Handle case where user selected "Folder"
1164        String folderName = getResources().getString(R.string.group_folder);
1165        String shortcutName = intent.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
1166
1167        if (folderName != null && folderName.equals(shortcutName)) {
1168            addFolder();
1169        } else {
1170            startActivityForResult(intent, REQUEST_CREATE_LIVE_FOLDER);
1171        }
1172    }
1173
1174    void addFolder() {
1175        UserFolderInfo folderInfo = new UserFolderInfo();
1176        folderInfo.title = getText(R.string.folder_name);
1177
1178        CellLayout.CellInfo cellInfo = mAddItemCellInfo;
1179        cellInfo.screen = mWorkspace.getCurrentScreen();
1180        if (!findSingleSlot(cellInfo)) return;
1181
1182        // Update the model
1183        LauncherModel.addItemToDatabase(this, folderInfo,
1184                LauncherSettings.Favorites.CONTAINER_DESKTOP,
1185                mWorkspace.getCurrentScreen(), cellInfo.cellX, cellInfo.cellY, false);
1186        mFolders.put(folderInfo.id, folderInfo);
1187
1188        // Create the view
1189        FolderIcon newFolder = FolderIcon.fromXml(R.layout.folder_icon, this,
1190                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentScreen()), folderInfo);
1191        mWorkspace.addInCurrentScreen(newFolder,
1192                cellInfo.cellX, cellInfo.cellY, 1, 1, isWorkspaceLocked());
1193    }
1194
1195    void removeFolder(FolderInfo folder) {
1196        mFolders.remove(folder.id);
1197    }
1198
1199    private void completeAddLiveFolder(Intent data, CellLayout.CellInfo cellInfo) {
1200        cellInfo.screen = mWorkspace.getCurrentScreen();
1201        if (!findSingleSlot(cellInfo)) return;
1202
1203        final LiveFolderInfo info = addLiveFolder(this, data, cellInfo, false);
1204
1205        if (!mRestoring) {
1206            final View view = LiveFolderIcon.fromXml(R.layout.live_folder_icon, this,
1207                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentScreen()), info);
1208            mWorkspace.addInCurrentScreen(view, cellInfo.cellX, cellInfo.cellY, 1, 1,
1209                    isWorkspaceLocked());
1210        }
1211    }
1212
1213    static LiveFolderInfo addLiveFolder(Context context, Intent data,
1214            CellLayout.CellInfo cellInfo, boolean notify) {
1215
1216        Intent baseIntent = data.getParcelableExtra(LiveFolders.EXTRA_LIVE_FOLDER_BASE_INTENT);
1217        String name = data.getStringExtra(LiveFolders.EXTRA_LIVE_FOLDER_NAME);
1218
1219        Drawable icon = null;
1220        boolean filtered = false;
1221        Intent.ShortcutIconResource iconResource = null;
1222
1223        Parcelable extra = data.getParcelableExtra(LiveFolders.EXTRA_LIVE_FOLDER_ICON);
1224        if (extra != null && extra instanceof Intent.ShortcutIconResource) {
1225            try {
1226                iconResource = (Intent.ShortcutIconResource) extra;
1227                final PackageManager packageManager = context.getPackageManager();
1228                Resources resources = packageManager.getResourcesForApplication(
1229                        iconResource.packageName);
1230                final int id = resources.getIdentifier(iconResource.resourceName, null, null);
1231                icon = resources.getDrawable(id);
1232            } catch (Exception e) {
1233                Log.w(TAG, "Could not load live folder icon: " + extra);
1234            }
1235        }
1236
1237        if (icon == null) {
1238            icon = context.getResources().getDrawable(R.drawable.ic_launcher_folder);
1239        }
1240
1241        final LiveFolderInfo info = new LiveFolderInfo();
1242        info.icon = icon;
1243        info.filtered = filtered;
1244        info.title = name;
1245        info.iconResource = iconResource;
1246        info.uri = data.getData();
1247        info.baseIntent = baseIntent;
1248        info.displayMode = data.getIntExtra(LiveFolders.EXTRA_LIVE_FOLDER_DISPLAY_MODE,
1249                LiveFolders.DISPLAY_MODE_GRID);
1250
1251        LauncherModel.addItemToDatabase(context, info, LauncherSettings.Favorites.CONTAINER_DESKTOP,
1252                cellInfo.screen, cellInfo.cellX, cellInfo.cellY, notify);
1253        mFolders.put(info.id, info);
1254
1255        return info;
1256    }
1257
1258    private boolean findSingleSlot(CellLayout.CellInfo cellInfo) {
1259        final int[] xy = new int[2];
1260        if (findSlot(cellInfo, xy, 1, 1)) {
1261            cellInfo.cellX = xy[0];
1262            cellInfo.cellY = xy[1];
1263            return true;
1264        }
1265        return false;
1266    }
1267
1268    private boolean findSlot(CellLayout.CellInfo cellInfo, int[] xy, int spanX, int spanY) {
1269        if (!cellInfo.findCellForSpan(xy, spanX, spanY)) {
1270            boolean[] occupied = mSavedState != null ?
1271                    mSavedState.getBooleanArray(RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS) : null;
1272            cellInfo = mWorkspace.findAllVacantCells(occupied);
1273            if (!cellInfo.findCellForSpan(xy, spanX, spanY)) {
1274                Toast.makeText(this, getString(R.string.out_of_space), Toast.LENGTH_SHORT).show();
1275                return false;
1276            }
1277        }
1278        return true;
1279    }
1280
1281    private void showNotifications() {
1282        final StatusBarManager statusBar = (StatusBarManager) getSystemService(STATUS_BAR_SERVICE);
1283        if (statusBar != null) {
1284            statusBar.expand();
1285        }
1286    }
1287
1288    private void startWallpaper() {
1289        closeAllApps(true);
1290        final Intent pickWallpaper = new Intent(Intent.ACTION_SET_WALLPAPER);
1291        Intent chooser = Intent.createChooser(pickWallpaper,
1292                getText(R.string.chooser_wallpaper));
1293        // NOTE: Adds a configure option to the chooser if the wallpaper supports it
1294        //       Removed in Eclair MR1
1295//        WallpaperManager wm = (WallpaperManager)
1296//                getSystemService(Context.WALLPAPER_SERVICE);
1297//        WallpaperInfo wi = wm.getWallpaperInfo();
1298//        if (wi != null && wi.getSettingsActivity() != null) {
1299//            LabeledIntent li = new LabeledIntent(getPackageName(),
1300//                    R.string.configure_wallpaper, 0);
1301//            li.setClassName(wi.getPackageName(), wi.getSettingsActivity());
1302//            chooser.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Intent[] { li });
1303//        }
1304        startActivityForResult(chooser, REQUEST_PICK_WALLPAPER);
1305    }
1306
1307    /**
1308     * Registers various content observers. The current implementation registers
1309     * only a favorites observer to keep track of the favorites applications.
1310     */
1311    private void registerContentObservers() {
1312        ContentResolver resolver = getContentResolver();
1313        resolver.registerContentObserver(LauncherProvider.CONTENT_APPWIDGET_RESET_URI,
1314                true, mWidgetObserver);
1315    }
1316
1317    @Override
1318    public boolean dispatchKeyEvent(KeyEvent event) {
1319        if (event.getAction() == KeyEvent.ACTION_DOWN) {
1320            switch (event.getKeyCode()) {
1321                case KeyEvent.KEYCODE_BACK:
1322                    return true;
1323                case KeyEvent.KEYCODE_HOME:
1324                    return true;
1325                case KeyEvent.KEYCODE_VOLUME_DOWN:
1326                    if (SystemProperties.getInt("launcher2.dumpstate", 0) != 0) {
1327                        dumpState();
1328                        return true;
1329                    }
1330                    break;
1331            }
1332        } else if (event.getAction() == KeyEvent.ACTION_UP) {
1333            switch (event.getKeyCode()) {
1334                case KeyEvent.KEYCODE_BACK:
1335                    if (!event.isCanceled()) {
1336                        mWorkspace.dispatchKeyEvent(event);
1337                        if (isAllAppsVisible()) {
1338                            closeAllApps(true);
1339                        } else {
1340                            closeFolder();
1341                        }
1342                        dismissPreview(mPreviousView);
1343                        dismissPreview(mNextView);
1344                    }
1345                    return true;
1346                case KeyEvent.KEYCODE_HOME:
1347                    return true;
1348            }
1349        }
1350
1351        return super.dispatchKeyEvent(event);
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            startActivitySafely(intent);
1402        } else if (tag instanceof FolderInfo) {
1403            handleFolderClick((FolderInfo) tag);
1404        } else if (v == mHandleView) {
1405            if (isAllAppsVisible()) {
1406                closeAllApps(true);
1407            } else {
1408                showAllApps(true);
1409            }
1410        }
1411    }
1412
1413    void startActivitySafely(Intent intent) {
1414        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1415        try {
1416            startActivity(intent);
1417        } catch (ActivityNotFoundException e) {
1418            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
1419        } catch (SecurityException e) {
1420            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
1421            Log.e(TAG, "Launcher does not have the permission to launch " + intent +
1422                    ". Make sure to create a MAIN intent-filter for the corresponding activity " +
1423                    "or use the exported attribute for this activity.", e);
1424        }
1425    }
1426
1427    private void handleFolderClick(FolderInfo folderInfo) {
1428        if (!folderInfo.opened) {
1429            // Close any open folder
1430            closeFolder();
1431            // Open the requested folder
1432            openFolder(folderInfo);
1433        } else {
1434            // Find the open folder...
1435            Folder openFolder = mWorkspace.getFolderForTag(folderInfo);
1436            int folderScreen;
1437            if (openFolder != null) {
1438                folderScreen = mWorkspace.getScreenForView(openFolder);
1439                // .. and close it
1440                closeFolder(openFolder);
1441                if (folderScreen != mWorkspace.getCurrentScreen()) {
1442                    // Close any folder open on the current screen
1443                    closeFolder();
1444                    // Pull the folder onto this screen
1445                    openFolder(folderInfo);
1446                }
1447            }
1448        }
1449    }
1450
1451    /**
1452     * Opens the user fodler described by the specified tag. The opening of the folder
1453     * is animated relative to the specified View. If the View is null, no animation
1454     * is played.
1455     *
1456     * @param folderInfo The FolderInfo describing the folder to open.
1457     */
1458    private void openFolder(FolderInfo folderInfo) {
1459        Folder openFolder;
1460
1461        if (folderInfo instanceof UserFolderInfo) {
1462            openFolder = UserFolder.fromXml(this);
1463        } else if (folderInfo instanceof LiveFolderInfo) {
1464            openFolder = com.android.launcher2.LiveFolder.fromXml(this, folderInfo);
1465        } else {
1466            return;
1467        }
1468
1469        openFolder.setDragController(mDragController);
1470        openFolder.setLauncher(this);
1471
1472        openFolder.bind(folderInfo);
1473        folderInfo.opened = true;
1474
1475        mWorkspace.addInScreen(openFolder, folderInfo.screen, 0, 0, 4, 4);
1476        openFolder.onOpen();
1477    }
1478
1479    public boolean onLongClick(View v) {
1480        switch (v.getId()) {
1481            case R.id.previous_screen:
1482                if (!isAllAppsVisible()) {
1483                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
1484                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
1485                    showPreviousPreview(v);
1486                }
1487                return true;
1488            case R.id.next_screen:
1489                if (!isAllAppsVisible()) {
1490                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
1491                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
1492                    showNextPreview(v);
1493                }
1494                return true;
1495        }
1496
1497        if (isWorkspaceLocked()) {
1498            return false;
1499        }
1500
1501        if (!(v instanceof CellLayout)) {
1502            v = (View) v.getParent();
1503        }
1504
1505        CellLayout.CellInfo cellInfo = (CellLayout.CellInfo) v.getTag();
1506
1507        // This happens when long clicking an item with the dpad/trackball
1508        if (cellInfo == null) {
1509            return true;
1510        }
1511
1512        if (mWorkspace.allowLongPress()) {
1513            if (cellInfo.cell == null) {
1514                if (cellInfo.valid) {
1515                    // User long pressed on empty space
1516                    mWorkspace.setAllowLongPress(false);
1517                    showAddDialog(cellInfo);
1518                }
1519            } else {
1520                if (!(cellInfo.cell instanceof Folder)) {
1521                    // User long pressed on an item
1522                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
1523                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
1524                    mWorkspace.startDrag(cellInfo);
1525                }
1526            }
1527        }
1528        return true;
1529    }
1530
1531    @SuppressWarnings({"unchecked"})
1532    private void dismissPreview(final View v) {
1533        final PopupWindow window = (PopupWindow) v.getTag();
1534        if (window != null) {
1535            window.setOnDismissListener(new PopupWindow.OnDismissListener() {
1536                public void onDismiss() {
1537                    ViewGroup group = (ViewGroup) v.getTag(R.id.workspace);
1538                    int count = group.getChildCount();
1539                    for (int i = 0; i < count; i++) {
1540                        ((ImageView) group.getChildAt(i)).setImageDrawable(null);
1541                    }
1542                    ArrayList<Bitmap> bitmaps = (ArrayList<Bitmap>) v.getTag(R.id.icon);
1543                    for (Bitmap bitmap : bitmaps) bitmap.recycle();
1544
1545                    v.setTag(R.id.workspace, null);
1546                    v.setTag(R.id.icon, null);
1547                    window.setOnDismissListener(null);
1548                }
1549            });
1550            window.dismiss();
1551        }
1552        v.setTag(null);
1553    }
1554
1555    private void showPreviousPreview(View anchor) {
1556        int current = mWorkspace.getCurrentScreen();
1557        if (current <= 0) return;
1558
1559        showPreviews(anchor, 0, mWorkspace.getChildCount());
1560    }
1561
1562    private void showNextPreview(View anchor) {
1563        int current = mWorkspace.getCurrentScreen();
1564        if (current >= mWorkspace.getChildCount() - 1) return;
1565
1566        showPreviews(anchor, 0, mWorkspace.getChildCount());
1567    }
1568
1569    private void showPreviews(final View anchor, int start, int end) {
1570        Resources resources = getResources();
1571
1572        Workspace workspace = mWorkspace;
1573        CellLayout cell = ((CellLayout) workspace.getChildAt(start));
1574
1575        float max = workspace.getChildCount();
1576
1577        Rect r = new Rect();
1578        resources.getDrawable(R.drawable.preview_background).getPadding(r);
1579        int extraW = (int) ((r.left + r.right) * max);
1580        int extraH = r.top + r.bottom;
1581
1582        int aW = cell.getWidth() - extraW;
1583        float w = aW / max;
1584
1585        int width = cell.getWidth();
1586        int height = cell.getHeight();
1587        int x = cell.getLeftPadding();
1588        int y = cell.getTopPadding();
1589        width -= (x + cell.getRightPadding());
1590        height -= (y + cell.getBottomPadding());
1591
1592        float scale = w / width;
1593
1594        int count = end - start;
1595
1596        final float sWidth = width * scale;
1597        float sHeight = height * scale;
1598
1599        LinearLayout preview = new LinearLayout(this);
1600
1601        PreviewTouchHandler handler = new PreviewTouchHandler(anchor);
1602        ArrayList<Bitmap> bitmaps = new ArrayList<Bitmap>(count);
1603
1604        for (int i = start; i < end; i++) {
1605            ImageView image = new ImageView(this);
1606            cell = (CellLayout) workspace.getChildAt(i);
1607
1608            Bitmap bitmap = Bitmap.createBitmap((int) sWidth, (int) sHeight,
1609                    Bitmap.Config.ARGB_8888);
1610
1611            Canvas c = new Canvas(bitmap);
1612            c.scale(scale, scale);
1613            c.translate(-cell.getLeftPadding(), -cell.getTopPadding());
1614            cell.dispatchDraw(c);
1615
1616            image.setBackgroundDrawable(resources.getDrawable(R.drawable.preview_background));
1617            image.setImageBitmap(bitmap);
1618            image.setTag(i);
1619            image.setOnClickListener(handler);
1620            image.setOnFocusChangeListener(handler);
1621            image.setFocusable(true);
1622            if (i == mWorkspace.getCurrentScreen()) image.requestFocus();
1623
1624            preview.addView(image,
1625                    LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
1626
1627            bitmaps.add(bitmap);
1628        }
1629
1630        PopupWindow p = new PopupWindow(this);
1631        p.setContentView(preview);
1632        p.setWidth((int) (sWidth * count + extraW));
1633        p.setHeight((int) (sHeight + extraH));
1634        p.setAnimationStyle(R.style.AnimationPreview);
1635        p.setOutsideTouchable(true);
1636        p.setFocusable(true);
1637        p.setBackgroundDrawable(new ColorDrawable(0));
1638        p.showAsDropDown(anchor, 0, 0);
1639
1640        p.setOnDismissListener(new PopupWindow.OnDismissListener() {
1641            public void onDismiss() {
1642                dismissPreview(anchor);
1643            }
1644        });
1645
1646        anchor.setTag(p);
1647        anchor.setTag(R.id.workspace, preview);
1648        anchor.setTag(R.id.icon, bitmaps);
1649    }
1650
1651    class PreviewTouchHandler implements View.OnClickListener, Runnable, View.OnFocusChangeListener {
1652        private final View mAnchor;
1653
1654        public PreviewTouchHandler(View anchor) {
1655            mAnchor = anchor;
1656        }
1657
1658        public void onClick(View v) {
1659            mWorkspace.snapToScreen((Integer) v.getTag());
1660            v.post(this);
1661        }
1662
1663        public void run() {
1664            dismissPreview(mAnchor);
1665        }
1666
1667        public void onFocusChange(View v, boolean hasFocus) {
1668            if (hasFocus) {
1669                mWorkspace.snapToScreen((Integer) v.getTag());
1670            }
1671        }
1672    }
1673
1674    View getDrawerHandle() {
1675        return mHandleView;
1676    }
1677
1678    Workspace getWorkspace() {
1679        return mWorkspace;
1680    }
1681
1682    @Override
1683    protected Dialog onCreateDialog(int id) {
1684        switch (id) {
1685            case DIALOG_CREATE_SHORTCUT:
1686                return new CreateShortcut().createDialog();
1687            case DIALOG_RENAME_FOLDER:
1688                return new RenameFolder().createDialog();
1689        }
1690
1691        return super.onCreateDialog(id);
1692    }
1693
1694    @Override
1695    protected void onPrepareDialog(int id, Dialog dialog) {
1696        switch (id) {
1697            case DIALOG_CREATE_SHORTCUT:
1698                break;
1699            case DIALOG_RENAME_FOLDER:
1700                if (mFolderInfo != null) {
1701                    EditText input = (EditText) dialog.findViewById(R.id.folder_name);
1702                    final CharSequence text = mFolderInfo.title;
1703                    input.setText(text);
1704                    input.setSelection(0, text.length());
1705                }
1706                break;
1707        }
1708    }
1709
1710    void showRenameDialog(FolderInfo info) {
1711        mFolderInfo = info;
1712        mWaitingForResult = true;
1713        showDialog(DIALOG_RENAME_FOLDER);
1714    }
1715
1716    private void showAddDialog(CellLayout.CellInfo cellInfo) {
1717        mAddItemCellInfo = cellInfo;
1718        mWaitingForResult = true;
1719        showDialog(DIALOG_CREATE_SHORTCUT);
1720    }
1721
1722    private void pickShortcut(int requestCode, int title) {
1723        Bundle bundle = new Bundle();
1724
1725        ArrayList<String> shortcutNames = new ArrayList<String>();
1726        shortcutNames.add(getString(R.string.group_applications));
1727        bundle.putStringArrayList(Intent.EXTRA_SHORTCUT_NAME, shortcutNames);
1728
1729        ArrayList<ShortcutIconResource> shortcutIcons = new ArrayList<ShortcutIconResource>();
1730        shortcutIcons.add(ShortcutIconResource.fromContext(Launcher.this,
1731                        R.drawable.ic_launcher_application));
1732        bundle.putParcelableArrayList(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, shortcutIcons);
1733
1734        Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
1735        pickIntent.putExtra(Intent.EXTRA_INTENT, new Intent(Intent.ACTION_CREATE_SHORTCUT));
1736        pickIntent.putExtra(Intent.EXTRA_TITLE, getText(title));
1737        pickIntent.putExtras(bundle);
1738
1739        startActivityForResult(pickIntent, requestCode);
1740    }
1741
1742    private class RenameFolder {
1743        private EditText mInput;
1744
1745        Dialog createDialog() {
1746            mWaitingForResult = true;
1747            final View layout = View.inflate(Launcher.this, R.layout.rename_folder, null);
1748            mInput = (EditText) layout.findViewById(R.id.folder_name);
1749
1750            AlertDialog.Builder builder = new AlertDialog.Builder(Launcher.this);
1751            builder.setIcon(0);
1752            builder.setTitle(getString(R.string.rename_folder_title));
1753            builder.setCancelable(true);
1754            builder.setOnCancelListener(new Dialog.OnCancelListener() {
1755                public void onCancel(DialogInterface dialog) {
1756                    cleanup();
1757                }
1758            });
1759            builder.setNegativeButton(getString(R.string.cancel_action),
1760                new Dialog.OnClickListener() {
1761                    public void onClick(DialogInterface dialog, int which) {
1762                        cleanup();
1763                    }
1764                }
1765            );
1766            builder.setPositiveButton(getString(R.string.rename_action),
1767                new Dialog.OnClickListener() {
1768                    public void onClick(DialogInterface dialog, int which) {
1769                        changeFolderName();
1770                    }
1771                }
1772            );
1773            builder.setView(layout);
1774
1775            final AlertDialog dialog = builder.create();
1776            dialog.setOnShowListener(new DialogInterface.OnShowListener() {
1777                public void onShow(DialogInterface dialog) {
1778                    mInput.requestFocus();
1779                    InputMethodManager inputManager = (InputMethodManager)
1780                            getSystemService(Context.INPUT_METHOD_SERVICE);
1781                    inputManager.showSoftInput(mInput, 0);
1782                }
1783            });
1784
1785            return dialog;
1786        }
1787
1788        private void changeFolderName() {
1789            final String name = mInput.getText().toString();
1790            if (!TextUtils.isEmpty(name)) {
1791                // Make sure we have the right folder info
1792                mFolderInfo = mFolders.get(mFolderInfo.id);
1793                mFolderInfo.title = name;
1794                LauncherModel.updateItemInDatabase(Launcher.this, mFolderInfo);
1795
1796                if (mWorkspaceLoading) {
1797                    lockAllApps();
1798                    mModel.setWorkspaceDirty();
1799                    mModel.startLoader(Launcher.this, false);
1800                } else {
1801                    final FolderIcon folderIcon = (FolderIcon)
1802                            mWorkspace.getViewForTag(mFolderInfo);
1803                    if (folderIcon != null) {
1804                        folderIcon.setText(name);
1805                        getWorkspace().requestLayout();
1806                    } else {
1807                        lockAllApps();
1808                        mModel.setWorkspaceDirty();
1809                        mWorkspaceLoading = true;
1810                        mModel.startLoader(Launcher.this, false);
1811                    }
1812                }
1813            }
1814            cleanup();
1815        }
1816
1817        private void cleanup() {
1818            dismissDialog(DIALOG_RENAME_FOLDER);
1819            mWaitingForResult = false;
1820            mFolderInfo = null;
1821        }
1822    }
1823
1824    boolean isAllAppsVisible() {
1825        return mAllAppsGrid.isVisible();
1826    }
1827
1828    boolean isAllAppsOpaque() {
1829        return mAllAppsGrid.isOpaque();
1830    }
1831
1832    void showAllApps(boolean animated) {
1833        mAllAppsGrid.zoom(1.0f, animated);
1834        //mWorkspace.hide();
1835
1836        mWorkspace.startFading(false);
1837
1838        mAllAppsGrid.setFocusable(true);
1839        mAllAppsGrid.requestFocus();
1840
1841        // TODO: fade these two too
1842        mDeleteZone.setVisibility(View.GONE);
1843        //mHandleView.setVisibility(View.GONE);
1844    }
1845
1846    void closeAllApps(boolean animated) {
1847        if (mAllAppsGrid.isVisible()) {
1848            mAllAppsGrid.zoom(0.0f, animated);
1849            mAllAppsGrid.setFocusable(false);
1850            mWorkspace.getChildAt(mWorkspace.getCurrentScreen()).requestFocus();
1851            mWorkspace.startFading(true);
1852
1853            // TODO: fade these two too
1854            /*
1855            mDeleteZone.setVisibility(View.VISIBLE);
1856            mHandleView.setVisibility(View.VISIBLE);
1857            */
1858        }
1859    }
1860
1861    void lockAllApps() {
1862        // TODO
1863    }
1864
1865    void unlockAllApps() {
1866        // TODO
1867    }
1868
1869    /**
1870     * Displays the shortcut creation dialog and launches, if necessary, the
1871     * appropriate activity.
1872     */
1873    private class CreateShortcut implements DialogInterface.OnClickListener,
1874            DialogInterface.OnCancelListener, DialogInterface.OnDismissListener,
1875            DialogInterface.OnShowListener {
1876
1877        private AddAdapter mAdapter;
1878
1879        Dialog createDialog() {
1880            mWaitingForResult = true;
1881
1882            mAdapter = new AddAdapter(Launcher.this);
1883
1884            final AlertDialog.Builder builder = new AlertDialog.Builder(Launcher.this);
1885            builder.setTitle(getString(R.string.menu_item_add_item));
1886            builder.setAdapter(mAdapter, this);
1887
1888            builder.setInverseBackgroundForced(true);
1889
1890            AlertDialog dialog = builder.create();
1891            dialog.setOnCancelListener(this);
1892            dialog.setOnDismissListener(this);
1893            dialog.setOnShowListener(this);
1894
1895            return dialog;
1896        }
1897
1898        public void onCancel(DialogInterface dialog) {
1899            mWaitingForResult = false;
1900            cleanup();
1901        }
1902
1903        public void onDismiss(DialogInterface dialog) {
1904        }
1905
1906        private void cleanup() {
1907            dismissDialog(DIALOG_CREATE_SHORTCUT);
1908        }
1909
1910        /**
1911         * Handle the action clicked in the "Add to home" dialog.
1912         */
1913        public void onClick(DialogInterface dialog, int which) {
1914            Resources res = getResources();
1915            cleanup();
1916
1917            switch (which) {
1918                case AddAdapter.ITEM_SHORTCUT: {
1919                    // Insert extra item to handle picking application
1920                    pickShortcut(REQUEST_PICK_SHORTCUT, R.string.title_select_shortcut);
1921                    break;
1922                }
1923
1924                case AddAdapter.ITEM_APPWIDGET: {
1925                    int appWidgetId = Launcher.this.mAppWidgetHost.allocateAppWidgetId();
1926
1927                    Intent pickIntent = new Intent(AppWidgetManager.ACTION_APPWIDGET_PICK);
1928                    pickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
1929                    // add the search widget
1930                    ArrayList<AppWidgetProviderInfo> customInfo =
1931                            new ArrayList<AppWidgetProviderInfo>();
1932                    AppWidgetProviderInfo info = new AppWidgetProviderInfo();
1933                    info.provider = new ComponentName(getPackageName(), "XXX.YYY");
1934                    info.label = getString(R.string.group_search);
1935                    info.icon = R.drawable.ic_search_widget;
1936                    customInfo.add(info);
1937                    pickIntent.putParcelableArrayListExtra(
1938                            AppWidgetManager.EXTRA_CUSTOM_INFO, customInfo);
1939                    ArrayList<Bundle> customExtras = new ArrayList<Bundle>();
1940                    Bundle b = new Bundle();
1941                    b.putString(EXTRA_CUSTOM_WIDGET, SEARCH_WIDGET);
1942                    customExtras.add(b);
1943                    pickIntent.putParcelableArrayListExtra(
1944                            AppWidgetManager.EXTRA_CUSTOM_EXTRAS, customExtras);
1945                    // start the pick activity
1946                    startActivityForResult(pickIntent, REQUEST_PICK_APPWIDGET);
1947                    break;
1948                }
1949
1950                case AddAdapter.ITEM_LIVE_FOLDER: {
1951                    // Insert extra item to handle inserting folder
1952                    Bundle bundle = new Bundle();
1953
1954                    ArrayList<String> shortcutNames = new ArrayList<String>();
1955                    shortcutNames.add(res.getString(R.string.group_folder));
1956                    bundle.putStringArrayList(Intent.EXTRA_SHORTCUT_NAME, shortcutNames);
1957
1958                    ArrayList<ShortcutIconResource> shortcutIcons =
1959                            new ArrayList<ShortcutIconResource>();
1960                    shortcutIcons.add(ShortcutIconResource.fromContext(Launcher.this,
1961                            R.drawable.ic_launcher_folder));
1962                    bundle.putParcelableArrayList(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, shortcutIcons);
1963
1964                    Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
1965                    pickIntent.putExtra(Intent.EXTRA_INTENT,
1966                            new Intent(LiveFolders.ACTION_CREATE_LIVE_FOLDER));
1967                    pickIntent.putExtra(Intent.EXTRA_TITLE,
1968                            getText(R.string.title_select_live_folder));
1969                    pickIntent.putExtras(bundle);
1970
1971                    startActivityForResult(pickIntent, REQUEST_PICK_LIVE_FOLDER);
1972                    break;
1973                }
1974
1975                case AddAdapter.ITEM_WALLPAPER: {
1976                    startWallpaper();
1977                    break;
1978                }
1979            }
1980        }
1981
1982        public void onShow(DialogInterface dialog) {
1983        }
1984    }
1985
1986    /**
1987     * Receives notifications when applications are added/removed.
1988     */
1989    private class CloseSystemDialogsIntentReceiver extends BroadcastReceiver {
1990        @Override
1991        public void onReceive(Context context, Intent intent) {
1992            closeSystemDialogs();
1993        }
1994    }
1995
1996    /**
1997     * Receives notifications whenever the appwidgets are reset.
1998     */
1999    private class AppWidgetResetObserver extends ContentObserver {
2000        public AppWidgetResetObserver() {
2001            super(new Handler());
2002        }
2003
2004        @Override
2005        public void onChange(boolean selfChange) {
2006            onAppWidgetReset();
2007        }
2008    }
2009
2010    /**
2011     * Implementation of the method from LauncherModel.Callbacks.
2012     */
2013    public int getCurrentWorkspaceScreen() {
2014        return mWorkspace.getCurrentScreen();
2015    }
2016
2017    /**
2018     * Refreshes the shortcuts shown on the workspace.
2019     *
2020     * Implementation of the method from LauncherModel.Callbacks.
2021     */
2022    public void startBinding() {
2023        final Workspace workspace = mWorkspace;
2024        int count = workspace.getChildCount();
2025        for (int i = 0; i < count; i++) {
2026            // Use removeAllViewsInLayout() to avoid an extra requestLayout() and invalidate().
2027            ((ViewGroup) workspace.getChildAt(i)).removeAllViewsInLayout();
2028        }
2029
2030        if (DEBUG_USER_INTERFACE) {
2031            android.widget.Button finishButton = new android.widget.Button(this);
2032            finishButton.setText("Finish");
2033            workspace.addInScreen(finishButton, 1, 0, 0, 1, 1);
2034
2035            finishButton.setOnClickListener(new android.widget.Button.OnClickListener() {
2036                public void onClick(View v) {
2037                    finish();
2038                }
2039            });
2040        }
2041    }
2042
2043    /**
2044     * Bind the items start-end from the list.
2045     *
2046     * Implementation of the method from LauncherModel.Callbacks.
2047     */
2048    public void bindItems(ArrayList<ItemInfo> shortcuts, int start, int end) {
2049
2050        final Workspace workspace = mWorkspace;
2051
2052        for (int i=start; i<end; i++) {
2053            final ItemInfo item = shortcuts.get(i);
2054            mDesktopItems.add(item);
2055            switch (item.itemType) {
2056                case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
2057                case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
2058                    final View shortcut = createShortcut((ApplicationInfo) item);
2059                    workspace.addInScreen(shortcut, item.screen, item.cellX, item.cellY, 1, 1,
2060                            false);
2061                    break;
2062                case LauncherSettings.Favorites.ITEM_TYPE_USER_FOLDER:
2063                    final FolderIcon newFolder = FolderIcon.fromXml(R.layout.folder_icon, this,
2064                            (ViewGroup) workspace.getChildAt(workspace.getCurrentScreen()),
2065                            (UserFolderInfo) item);
2066                    workspace.addInScreen(newFolder, item.screen, item.cellX, item.cellY, 1, 1,
2067                            false);
2068                    break;
2069                case LauncherSettings.Favorites.ITEM_TYPE_LIVE_FOLDER:
2070                    final FolderIcon newLiveFolder = LiveFolderIcon.fromXml(
2071                            R.layout.live_folder_icon, this,
2072                            (ViewGroup) workspace.getChildAt(workspace.getCurrentScreen()),
2073                            (LiveFolderInfo) item);
2074                    workspace.addInScreen(newLiveFolder, item.screen, item.cellX, item.cellY, 1, 1,
2075                            false);
2076                    break;
2077                case LauncherSettings.Favorites.ITEM_TYPE_WIDGET_SEARCH:
2078                    final int screen = workspace.getCurrentScreen();
2079                    final View view = mInflater.inflate(R.layout.widget_search,
2080                            (ViewGroup) workspace.getChildAt(screen), false);
2081
2082                    Search search = (Search) view.findViewById(R.id.widget_search);
2083                    search.setLauncher(this);
2084
2085                    final Widget widget = (Widget) item;
2086                    view.setTag(widget);
2087
2088                    workspace.addWidget(view, widget, false);
2089                    break;
2090            }
2091        }
2092
2093        workspace.requestLayout();
2094    }
2095
2096    /**
2097     * Implementation of the method from LauncherModel.Callbacks.
2098     */
2099    public void bindFolders(HashMap<Long, FolderInfo> folders) {
2100        mFolders.clear();
2101        mFolders.putAll(folders);
2102    }
2103
2104    /**
2105     * Add the views for a widget to the workspace.
2106     *
2107     * Implementation of the method from LauncherModel.Callbacks.
2108     */
2109    public void bindAppWidget(LauncherAppWidgetInfo item) {
2110        final Workspace workspace = mWorkspace;
2111
2112        final int appWidgetId = item.appWidgetId;
2113        final AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
2114        item.hostView = mAppWidgetHost.createView(this, appWidgetId, appWidgetInfo);
2115
2116        item.hostView.setAppWidget(appWidgetId, appWidgetInfo);
2117        item.hostView.setTag(item);
2118
2119        workspace.addInScreen(item.hostView, item.screen, item.cellX,
2120                item.cellY, item.spanX, item.spanY, false);
2121
2122        workspace.requestLayout();
2123
2124        mDesktopItems.add(item);
2125    }
2126
2127    /**
2128     * Callback saying that there aren't any more items to bind.
2129     *
2130     * Implementation of the method from LauncherModel.Callbacks.
2131     */
2132    public void finishBindingItems() {
2133        if (mSavedState != null) {
2134            if (!mWorkspace.hasFocus()) {
2135                mWorkspace.getChildAt(mWorkspace.getCurrentScreen()).requestFocus();
2136            }
2137
2138            final long[] userFolders = mSavedState.getLongArray(RUNTIME_STATE_USER_FOLDERS);
2139            if (userFolders != null) {
2140                for (long folderId : userFolders) {
2141                    final FolderInfo info = mFolders.get(folderId);
2142                    if (info != null) {
2143                        openFolder(info);
2144                    }
2145                }
2146                final Folder openFolder = mWorkspace.getOpenFolder();
2147                if (openFolder != null) {
2148                    openFolder.requestFocus();
2149                }
2150            }
2151
2152            mSavedState = null;
2153        }
2154
2155        if (mSavedInstanceState != null) {
2156            super.onRestoreInstanceState(mSavedInstanceState);
2157            mSavedInstanceState = null;
2158        }
2159
2160        mWorkspaceLoading = false;
2161    }
2162
2163    /**
2164     * Add the icons for all apps.
2165     *
2166     * Implementation of the method from LauncherModel.Callbacks.
2167     */
2168    public void bindAllApplications(ArrayList<ApplicationInfo> apps) {
2169        mAllAppsGrid.setApps(apps);
2170    }
2171
2172    /**
2173     * A package was installed.
2174     *
2175     * Implementation of the method from LauncherModel.Callbacks.
2176     */
2177    public void bindPackageAdded(ArrayList<ApplicationInfo> apps) {
2178        removeDialog(DIALOG_CREATE_SHORTCUT);
2179        mAllAppsGrid.addApps(apps);
2180    }
2181
2182    /**
2183     * A package was updated.
2184     *
2185     * Implementation of the method from LauncherModel.Callbacks.
2186     */
2187    public void bindPackageUpdated(String packageName, ArrayList<ApplicationInfo> apps) {
2188        removeDialog(DIALOG_CREATE_SHORTCUT);
2189        mWorkspace.updateShortcutsForPackage(packageName);
2190    }
2191
2192    /**
2193     * A package was uninstalled.
2194     *
2195     * Implementation of the method from LauncherModel.Callbacks.
2196     */
2197    public void bindPackageRemoved(String packageName, ArrayList<ApplicationInfo> apps) {
2198        removeDialog(DIALOG_CREATE_SHORTCUT);
2199        mWorkspace.removeShortcutsForPackage(packageName);
2200        mAllAppsGrid.removeApps(apps);
2201    }
2202
2203    /**
2204     * Prints out out state for debugging.
2205     */
2206    public void dumpState() {
2207        Log.d(TAG, "BEGIN launcher2 dump state for launcher " + this);
2208        Log.d(TAG, "mSavedState=" + mSavedState);
2209        Log.d(TAG, "mIsNewIntent=" + mIsNewIntent);
2210        Log.d(TAG, "mWorkspaceLoading=" + mWorkspaceLoading);
2211        Log.d(TAG, "mRestoring=" + mRestoring);
2212        Log.d(TAG, "mWaitingForResult=" + mWaitingForResult);
2213        Log.d(TAG, "mSavedInstanceState=" + mSavedInstanceState);
2214        Log.d(TAG, "mDesktopItems.size=" + mDesktopItems.size());
2215        Log.d(TAG, "mFolders.size=" + mFolders.size());
2216        mModel.dumpState();
2217        mAllAppsGrid.dumpState();
2218        Log.d(TAG, "END launcher2 dump state");
2219    }
2220}
2221