Launcher.java revision 4bb4f735c80ba6baca6678f6508b3862da61313a 
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 com.android.common.Search;
20import com.android.launcher.R;
21
22import android.animation.Animatable;
23import android.animation.AnimatableListenerAdapter;
24import android.animation.Animator;
25import android.animation.PropertyAnimator;
26import android.animation.Sequencer;
27import android.app.Activity;
28import android.app.AlertDialog;
29import android.app.Dialog;
30import android.app.SearchManager;
31import android.app.StatusBarManager;
32import android.app.WallpaperManager;
33import android.appwidget.AppWidgetManager;
34import android.appwidget.AppWidgetProviderInfo;
35import android.content.ActivityNotFoundException;
36import android.content.BroadcastReceiver;
37import android.content.ComponentName;
38import android.content.ContentResolver;
39import android.content.Context;
40import android.content.DialogInterface;
41import android.content.Intent;
42import android.content.Intent.ShortcutIconResource;
43import android.content.IntentFilter;
44import android.content.pm.ActivityInfo;
45import android.content.pm.PackageManager;
46import android.content.pm.ResolveInfo;
47import android.content.res.Configuration;
48import android.content.res.Resources;
49import android.content.res.TypedArray;
50import android.database.ContentObserver;
51import android.graphics.Bitmap;
52import android.graphics.Canvas;
53import android.graphics.Rect;
54import android.graphics.drawable.ColorDrawable;
55import android.graphics.drawable.Drawable;
56import android.net.Uri;
57import android.os.Bundle;
58import android.os.Handler;
59import android.os.Parcelable;
60import android.os.SystemClock;
61import android.os.SystemProperties;
62import android.provider.LiveFolders;
63import android.text.Selection;
64import android.text.SpannableStringBuilder;
65import android.text.TextUtils;
66import android.text.method.TextKeyListener;
67import android.util.Log;
68import android.view.Display;
69import android.view.HapticFeedbackConstants;
70import android.view.KeyEvent;
71import android.view.LayoutInflater;
72import android.view.Menu;
73import android.view.MenuItem;
74import android.view.MotionEvent;
75import android.view.View;
76import android.view.View.OnLongClickListener;
77import android.view.ViewGroup;
78import android.view.WindowManager;
79import android.view.animation.Animation;
80import android.view.animation.AnimationUtils;
81import android.view.animation.DecelerateInterpolator;
82import android.view.animation.Interpolator;
83import android.view.inputmethod.InputMethodManager;
84import android.widget.EditText;
85import android.widget.ImageView;
86import android.widget.LinearLayout;
87import android.widget.PopupWindow;
88import android.widget.TabHost;
89import android.widget.TextView;
90import android.widget.Toast;
91
92import java.io.DataInputStream;
93import java.io.DataOutputStream;
94import java.io.FileNotFoundException;
95import java.io.IOException;
96import java.util.ArrayList;
97import java.util.HashMap;
98import java.util.List;
99
100/**
101 * Default launcher application.
102 */
103public final class Launcher extends Activity
104        implements View.OnClickListener, OnLongClickListener, LauncherModel.Callbacks,
105                   AllAppsView.Watcher, View.OnTouchListener {
106    static final String TAG = "Launcher";
107    static final boolean LOGD = false;
108
109    static final boolean PROFILE_STARTUP = false;
110    static final boolean DEBUG_WIDGETS = false;
111    static final boolean DEBUG_USER_INTERFACE = false;
112
113    private static final int WALLPAPER_SCREENS_SPAN = 2;
114
115    private static final int MENU_GROUP_ADD = 1;
116    private static final int MENU_GROUP_WALLPAPER = MENU_GROUP_ADD + 1;
117
118    private static final int MENU_ADD = Menu.FIRST + 1;
119    private static final int MENU_WALLPAPER_SETTINGS = MENU_ADD + 1;
120    private static final int MENU_SEARCH = MENU_WALLPAPER_SETTINGS + 1;
121    private static final int MENU_NOTIFICATIONS = MENU_SEARCH + 1;
122    private static final int MENU_SETTINGS = MENU_NOTIFICATIONS + 1;
123
124    private static final int REQUEST_CREATE_SHORTCUT = 1;
125    private static final int REQUEST_CREATE_LIVE_FOLDER = 4;
126    private static final int REQUEST_CREATE_APPWIDGET = 5;
127    private static final int REQUEST_PICK_APPLICATION = 6;
128    private static final int REQUEST_PICK_SHORTCUT = 7;
129    private static final int REQUEST_PICK_LIVE_FOLDER = 8;
130    private static final int REQUEST_PICK_APPWIDGET = 9;
131    private static final int REQUEST_PICK_WALLPAPER = 10;
132
133    static final String EXTRA_SHORTCUT_DUPLICATE = "duplicate";
134
135    static final int SCREEN_COUNT = 5;
136    static final int DEFAULT_SCREEN = 2;
137
138    static final int DIALOG_CREATE_SHORTCUT = 1;
139    static final int DIALOG_RENAME_FOLDER = 2;
140
141    private static final String PREFERENCES = "launcher.preferences";
142
143    // Type: int
144    private static final String RUNTIME_STATE_CURRENT_SCREEN = "launcher.current_screen";
145    // Type: boolean
146    private static final String RUNTIME_STATE_ALL_APPS_FOLDER = "launcher.all_apps_folder";
147    // Type: long
148    private static final String RUNTIME_STATE_USER_FOLDERS = "launcher.user_folder";
149    // Type: int
150    private static final String RUNTIME_STATE_PENDING_ADD_SCREEN = "launcher.add_screen";
151    // Type: int
152    private static final String RUNTIME_STATE_PENDING_ADD_CELL_X = "launcher.add_cellX";
153    // Type: int
154    private static final String RUNTIME_STATE_PENDING_ADD_CELL_Y = "launcher.add_cellY";
155    // Type: int
156    private static final String RUNTIME_STATE_PENDING_ADD_SPAN_X = "launcher.add_spanX";
157    // Type: int
158    private static final String RUNTIME_STATE_PENDING_ADD_SPAN_Y = "launcher.add_spanY";
159    // Type: int
160    private static final String RUNTIME_STATE_PENDING_ADD_COUNT_X = "launcher.add_countX";
161    // Type: int
162    private static final String RUNTIME_STATE_PENDING_ADD_COUNT_Y = "launcher.add_countY";
163    // Type: int[]
164    private static final String RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS = "launcher.add_occupied_cells";
165    // Type: boolean
166    private static final String RUNTIME_STATE_PENDING_FOLDER_RENAME = "launcher.rename_folder";
167    // Type: long
168    private static final String RUNTIME_STATE_PENDING_FOLDER_RENAME_ID = "launcher.rename_folder_id";
169
170    static final int APPWIDGET_HOST_ID = 1024;
171
172    private static final Object sLock = new Object();
173    private static int sScreen = DEFAULT_SCREEN;
174
175    private final BroadcastReceiver mCloseSystemDialogsReceiver
176            = new CloseSystemDialogsIntentReceiver();
177    private final ContentObserver mWidgetObserver = new AppWidgetResetObserver();
178
179    private LayoutInflater mInflater;
180
181    private DragController mDragController;
182    private Workspace mWorkspace;
183
184    private AppWidgetManager mAppWidgetManager;
185    private LauncherAppWidgetHost mAppWidgetHost;
186
187    private CellLayout.CellInfo mAddItemCellInfo;
188    private CellLayout.CellInfo mMenuAddInfo;
189    private final int[] mCellCoordinates = new int[2];
190    private FolderInfo mFolderInfo;
191
192    private DeleteZone mDeleteZone;
193    private HandleView mHandleView;
194    private AllAppsView mAllAppsGrid;
195    private TabHost mHomeCustomizationDrawer;
196
197    private Bundle mSavedState;
198
199    private SpannableStringBuilder mDefaultKeySsb = null;
200
201    private boolean mWorkspaceLoading = true;
202
203    private boolean mPaused = true;
204    private boolean mRestoring;
205    private boolean mWaitingForResult;
206
207    private Bundle mSavedInstanceState;
208
209    private LauncherModel mModel;
210    private IconCache mIconCache;
211
212    private ArrayList<ItemInfo> mDesktopItems = new ArrayList<ItemInfo>();
213    private static HashMap<Long, FolderInfo> mFolders = new HashMap<Long, FolderInfo>();
214
215    private ImageView mPreviousView;
216    private ImageView mNextView;
217
218    // Hotseats (quick-launch icons next to AllApps)
219    private static final int NUM_HOTSEATS = 2;
220    private String[] mHotseatConfig = null;
221    private Intent[] mHotseats = null;
222    private Drawable[] mHotseatIcons = null;
223    private CharSequence[] mHotseatLabels = null;
224
225    @Override
226    protected void onCreate(Bundle savedInstanceState) {
227        super.onCreate(savedInstanceState);
228
229        if (LauncherApplication.isInPlaceRotationEnabled()) {
230            // hide the status bar (temporary until we get the status bar design figured out)
231            getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
232            this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR);
233        }
234
235        LauncherApplication app = ((LauncherApplication)getApplication());
236        mModel = app.setLauncher(this);
237        mIconCache = app.getIconCache();
238        mDragController = new DragController(this);
239        mInflater = getLayoutInflater();
240
241        mAppWidgetManager = AppWidgetManager.getInstance(this);
242        mAppWidgetHost = new LauncherAppWidgetHost(this, APPWIDGET_HOST_ID);
243        mAppWidgetHost.startListening();
244
245        if (PROFILE_STARTUP) {
246            android.os.Debug.startMethodTracing("/sdcard/launcher");
247        }
248
249        loadHotseats();
250        checkForLocaleChange();
251        setWallpaperDimension();
252        setContentView(R.layout.launcher);
253        mHomeCustomizationDrawer = (TabHost) findViewById(com.android.internal.R.id.tabhost);
254        if (mHomeCustomizationDrawer != null) {
255            mHomeCustomizationDrawer.setup();
256
257            String widgetsLabel = getString(R.string.widgets_tab_label);
258            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec("widgets")
259                    .setIndicator(widgetsLabel).setContent(R.id.widget_chooser));
260            String foldersLabel = getString(R.string.folders_tab_label);
261            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec("folders")
262                    .setIndicator(foldersLabel).setContent(R.id.folder_chooser));
263            String shortcutsLabel = getString(R.string.shortcuts_tab_label);
264            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec("shortcuts")
265                    .setIndicator(shortcutsLabel).setContent(R.id.shortcut_chooser));
266            String wallpapersLabel = getString(R.string.wallpapers_tab_label);
267            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec("wallpapers")
268                    .setIndicator(wallpapersLabel).setContent(R.id.wallpaperstab));
269
270            mHomeCustomizationDrawer.setCurrentTab(0);
271        }
272        setupViews();
273
274        registerContentObservers();
275
276        lockAllApps();
277
278        mSavedState = savedInstanceState;
279        restoreState(mSavedState);
280
281        if (PROFILE_STARTUP) {
282            android.os.Debug.stopMethodTracing();
283        }
284
285        if (!mRestoring) {
286            mModel.startLoader(this, true);
287        }
288
289        // For handling default keys
290        mDefaultKeySsb = new SpannableStringBuilder();
291        Selection.setSelection(mDefaultKeySsb, 0);
292
293        IntentFilter filter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
294        registerReceiver(mCloseSystemDialogsReceiver, filter);
295    }
296
297    @Override
298    public void onConfigurationChanged(Configuration newConfig) {
299        // TODO Auto-generated method stub
300        super.onConfigurationChanged(newConfig);
301    }
302
303
304    private void checkForLocaleChange() {
305        final LocaleConfiguration localeConfiguration = new LocaleConfiguration();
306        readConfiguration(this, localeConfiguration);
307
308        final Configuration configuration = getResources().getConfiguration();
309
310        final String previousLocale = localeConfiguration.locale;
311        final String locale = configuration.locale.toString();
312
313        final int previousMcc = localeConfiguration.mcc;
314        final int mcc = configuration.mcc;
315
316        final int previousMnc = localeConfiguration.mnc;
317        final int mnc = configuration.mnc;
318
319        boolean localeChanged = !locale.equals(previousLocale) || mcc != previousMcc || mnc != previousMnc;
320
321        if (localeChanged) {
322            localeConfiguration.locale = locale;
323            localeConfiguration.mcc = mcc;
324            localeConfiguration.mnc = mnc;
325
326            writeConfiguration(this, localeConfiguration);
327            mIconCache.flush();
328
329            loadHotseats();
330        }
331    }
332
333    private static class LocaleConfiguration {
334        public String locale;
335        public int mcc = -1;
336        public int mnc = -1;
337    }
338
339    private static void readConfiguration(Context context, LocaleConfiguration configuration) {
340        DataInputStream in = null;
341        try {
342            in = new DataInputStream(context.openFileInput(PREFERENCES));
343            configuration.locale = in.readUTF();
344            configuration.mcc = in.readInt();
345            configuration.mnc = in.readInt();
346        } catch (FileNotFoundException e) {
347            // Ignore
348        } catch (IOException e) {
349            // Ignore
350        } finally {
351            if (in != null) {
352                try {
353                    in.close();
354                } catch (IOException e) {
355                    // Ignore
356                }
357            }
358        }
359    }
360
361    private static void writeConfiguration(Context context, LocaleConfiguration configuration) {
362        DataOutputStream out = null;
363        try {
364            out = new DataOutputStream(context.openFileOutput(PREFERENCES, MODE_PRIVATE));
365            out.writeUTF(configuration.locale);
366            out.writeInt(configuration.mcc);
367            out.writeInt(configuration.mnc);
368            out.flush();
369        } catch (FileNotFoundException e) {
370            // Ignore
371        } catch (IOException e) {
372            //noinspection ResultOfMethodCallIgnored
373            context.getFileStreamPath(PREFERENCES).delete();
374        } finally {
375            if (out != null) {
376                try {
377                    out.close();
378                } catch (IOException e) {
379                    // Ignore
380                }
381            }
382        }
383    }
384
385    static int getScreen() {
386        synchronized (sLock) {
387            return sScreen;
388        }
389    }
390
391    static void setScreen(int screen) {
392        synchronized (sLock) {
393            sScreen = screen;
394        }
395    }
396
397    private void setWallpaperDimension() {
398        WallpaperManager wpm = (WallpaperManager)getSystemService(WALLPAPER_SERVICE);
399
400        Display display = getWindowManager().getDefaultDisplay();
401        boolean isPortrait = display.getWidth() < display.getHeight();
402
403        final int width = isPortrait ? display.getWidth() : display.getHeight();
404        final int height = isPortrait ? display.getHeight() : display.getWidth();
405        wpm.suggestDesiredDimensions(width * WALLPAPER_SCREENS_SPAN, height);
406    }
407
408    // Note: This doesn't do all the client-id magic that BrowserProvider does
409    // in Browser. (http://b/2425179)
410    private Uri getDefaultBrowserUri() {
411        String url = getString(R.string.default_browser_url);
412        if (url.indexOf("{CID}") != -1) {
413            url = url.replace("{CID}", "android-google");
414        }
415        return Uri.parse(url);
416    }
417
418    // Load the Intent templates from arrays.xml to populate the hotseats. For
419    // each Intent, if it resolves to a single app, use that as the launch
420    // intent & use that app's label as the contentDescription. Otherwise,
421    // retain the ResolveActivity so the user can pick an app.
422    private void loadHotseats() {
423        if (mHotseatConfig == null) {
424            mHotseatConfig = getResources().getStringArray(R.array.hotseats);
425            if (mHotseatConfig.length > 0) {
426                mHotseats = new Intent[mHotseatConfig.length];
427                mHotseatLabels = new CharSequence[mHotseatConfig.length];
428                mHotseatIcons = new Drawable[mHotseatConfig.length];
429            } else {
430                mHotseats = null;
431                mHotseatIcons = null;
432                mHotseatLabels = null;
433            }
434
435            TypedArray hotseatIconDrawables = getResources().obtainTypedArray(R.array.hotseat_icons);
436            for (int i=0; i<mHotseatConfig.length; i++) {
437                // load icon for this slot; currently unrelated to the actual activity
438                try {
439                    mHotseatIcons[i] = hotseatIconDrawables.getDrawable(i);
440                } catch (ArrayIndexOutOfBoundsException ex) {
441                    Log.w(TAG, "Missing hotseat_icons array item #" + i);
442                    mHotseatIcons[i] = null;
443                }
444            }
445            hotseatIconDrawables.recycle();
446        }
447
448        PackageManager pm = getPackageManager();
449        for (int i=0; i<mHotseatConfig.length; i++) {
450            Intent intent = null;
451            if (mHotseatConfig[i].equals("*BROWSER*")) {
452                // magic value meaning "launch user's default web browser"
453                // replace it with a generic web request so we can see if there is indeed a default
454                String defaultUri = getString(R.string.default_browser_url);
455                intent = new Intent(
456                        Intent.ACTION_VIEW,
457                        ((defaultUri != null)
458                            ? Uri.parse(defaultUri)
459                            : getDefaultBrowserUri())
460                    ).addCategory(Intent.CATEGORY_BROWSABLE);
461                // note: if the user launches this without a default set, she
462                // will always be taken to the default URL above; this is
463                // unavoidable as we must specify a valid URL in order for the
464                // chooser to appear, and once the user selects something, that
465                // URL is unavoidably sent to the chosen app.
466            } else {
467                try {
468                    intent = Intent.parseUri(mHotseatConfig[i], 0);
469                } catch (java.net.URISyntaxException ex) {
470                    Log.w(TAG, "Invalid hotseat intent: " + mHotseatConfig[i]);
471                    // bogus; leave intent=null
472                }
473            }
474
475            if (intent == null) {
476                mHotseats[i] = null;
477                mHotseatLabels[i] = getText(R.string.activity_not_found);
478                continue;
479            }
480
481            if (LOGD) {
482                Log.d(TAG, "loadHotseats: hotseat " + i
483                    + " initial intent=["
484                    + intent.toUri(Intent.URI_INTENT_SCHEME)
485                    + "]");
486            }
487
488            ResolveInfo bestMatch = pm.resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);
489            List<ResolveInfo> allMatches = pm.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
490            if (LOGD) {
491                Log.d(TAG, "Best match for intent: " + bestMatch);
492                Log.d(TAG, "All matches: ");
493                for (ResolveInfo ri : allMatches) {
494                    Log.d(TAG, "  --> " + ri);
495                }
496            }
497            // did this resolve to a single app, or the resolver?
498            if (allMatches.size() == 0 || bestMatch == null) {
499                // can't find any activity to handle this. let's leave the
500                // intent as-is and let Launcher show a toast when it fails
501                // to launch.
502                mHotseats[i] = intent;
503
504                // set accessibility text to "Not installed"
505                mHotseatLabels[i] = getText(R.string.activity_not_found);
506            } else {
507                boolean found = false;
508                for (ResolveInfo ri : allMatches) {
509                    if (bestMatch.activityInfo.name.equals(ri.activityInfo.name)
510                        && bestMatch.activityInfo.applicationInfo.packageName
511                            .equals(ri.activityInfo.applicationInfo.packageName)) {
512                        found = true;
513                        break;
514                    }
515                }
516
517                if (!found) {
518                    if (LOGD) Log.d(TAG, "Multiple options, no default yet");
519                    // the bestMatch is probably the ResolveActivity, meaning the
520                    // user has not yet selected a default
521                    // so: we'll keep the original intent for now
522                    mHotseats[i] = intent;
523
524                    // set the accessibility text to "Select shortcut"
525                    mHotseatLabels[i] = getText(R.string.title_select_shortcut);
526                } else {
527                    // we have an app!
528                    // now reconstruct the intent to launch it through the front
529                    // door
530                    ComponentName com = new ComponentName(
531                        bestMatch.activityInfo.applicationInfo.packageName,
532                        bestMatch.activityInfo.name);
533                    mHotseats[i] = new Intent(Intent.ACTION_MAIN).setComponent(com);
534
535                    // load the app label for accessibility
536                    mHotseatLabels[i] = bestMatch.activityInfo.loadLabel(pm);
537                }
538            }
539
540            if (LOGD) {
541                Log.d(TAG, "loadHotseats: hotseat " + i
542                    + " final intent=["
543                    + ((mHotseats[i] == null)
544                        ? "null"
545                        : mHotseats[i].toUri(Intent.URI_INTENT_SCHEME))
546                    + "] label=[" + mHotseatLabels[i]
547                    + "]"
548                    );
549            }
550        }
551    }
552
553    @Override
554    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
555        mWaitingForResult = false;
556
557        // The pattern used here is that a user PICKs a specific application,
558        // which, depending on the target, might need to CREATE the actual target.
559
560        // For example, the user would PICK_SHORTCUT for "Music playlist", and we
561        // launch over to the Music app to actually CREATE_SHORTCUT.
562
563        if (resultCode == RESULT_OK && mAddItemCellInfo != null) {
564            switch (requestCode) {
565                case REQUEST_PICK_APPLICATION:
566                    completeAddApplication(this, data, mAddItemCellInfo);
567                    break;
568                case REQUEST_PICK_SHORTCUT:
569                    processShortcut(data);
570                    break;
571                case REQUEST_CREATE_SHORTCUT:
572                    completeAddShortcut(data, mAddItemCellInfo);
573                    break;
574                case REQUEST_PICK_LIVE_FOLDER:
575                    addLiveFolder(data);
576                    break;
577                case REQUEST_CREATE_LIVE_FOLDER:
578                    completeAddLiveFolder(data, mAddItemCellInfo);
579                    break;
580                case REQUEST_PICK_APPWIDGET:
581                    addAppWidgetFromPick(data);
582                    break;
583                case REQUEST_CREATE_APPWIDGET:
584                    int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
585                    completeAddAppWidget(appWidgetId, mAddItemCellInfo);
586                    break;
587                case REQUEST_PICK_WALLPAPER:
588                    // We just wanted the activity result here so we can clear mWaitingForResult
589                    break;
590            }
591        } else if ((requestCode == REQUEST_PICK_APPWIDGET ||
592                requestCode == REQUEST_CREATE_APPWIDGET) && resultCode == RESULT_CANCELED &&
593                data != null) {
594            // Clean up the appWidgetId if we canceled
595            int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
596            if (appWidgetId != -1) {
597                mAppWidgetHost.deleteAppWidgetId(appWidgetId);
598            }
599        }
600    }
601
602    @Override
603    protected void onResume() {
604        super.onResume();
605
606        mPaused = false;
607
608        if (mRestoring) {
609            mWorkspaceLoading = true;
610            mModel.startLoader(this, true);
611            mRestoring = false;
612        }
613    }
614
615    @Override
616    protected void onPause() {
617        super.onPause();
618        // Some launcher layouts don't have a previous and next view
619        if (mPreviousView != null) {
620            dismissPreview(mPreviousView);
621        }
622        if (mNextView != null) {
623            dismissPreview(mNextView);
624        }
625        mDragController.cancelDrag();
626    }
627
628    @Override
629    public Object onRetainNonConfigurationInstance() {
630        // Flag the loader to stop early before switching
631        mModel.stopLoader();
632        mAllAppsGrid.surrender();
633        return Boolean.TRUE;
634    }
635
636    // We can't hide the IME if it was forced open.  So don't bother
637    /*
638    @Override
639    public void onWindowFocusChanged(boolean hasFocus) {
640        super.onWindowFocusChanged(hasFocus);
641
642        if (hasFocus) {
643            final InputMethodManager inputManager = (InputMethodManager)
644                    getSystemService(Context.INPUT_METHOD_SERVICE);
645            WindowManager.LayoutParams lp = getWindow().getAttributes();
646            inputManager.hideSoftInputFromWindow(lp.token, 0, new android.os.ResultReceiver(new
647                        android.os.Handler()) {
648                        protected void onReceiveResult(int resultCode, Bundle resultData) {
649                            Log.d(TAG, "ResultReceiver got resultCode=" + resultCode);
650                        }
651                    });
652            Log.d(TAG, "called hideSoftInputFromWindow from onWindowFocusChanged");
653        }
654    }
655    */
656
657    private boolean acceptFilter() {
658        final InputMethodManager inputManager = (InputMethodManager)
659                getSystemService(Context.INPUT_METHOD_SERVICE);
660        return !inputManager.isFullscreenMode();
661    }
662
663    @Override
664    public boolean onKeyDown(int keyCode, KeyEvent event) {
665        boolean handled = super.onKeyDown(keyCode, event);
666        if (!handled && acceptFilter() && keyCode != KeyEvent.KEYCODE_ENTER) {
667            boolean gotKey = TextKeyListener.getInstance().onKeyDown(mWorkspace, mDefaultKeySsb,
668                    keyCode, event);
669            if (gotKey && mDefaultKeySsb != null && mDefaultKeySsb.length() > 0) {
670                // something usable has been typed - start a search
671                // the typed text will be retrieved and cleared by
672                // showSearchDialog()
673                // If there are multiple keystrokes before the search dialog takes focus,
674                // onSearchRequested() will be called for every keystroke,
675                // but it is idempotent, so it's fine.
676                return onSearchRequested();
677            }
678        }
679
680        // Eat the long press event so the keyboard doesn't come up.
681        if (keyCode == KeyEvent.KEYCODE_MENU && event.isLongPress()) {
682            return true;
683        }
684
685        return handled;
686    }
687
688    private String getTypedText() {
689        return mDefaultKeySsb.toString();
690    }
691
692    private void clearTypedText() {
693        mDefaultKeySsb.clear();
694        mDefaultKeySsb.clearSpans();
695        Selection.setSelection(mDefaultKeySsb, 0);
696    }
697
698    /**
699     * Restores the previous state, if it exists.
700     *
701     * @param savedState The previous state.
702     */
703    private void restoreState(Bundle savedState) {
704        if (savedState == null) {
705            return;
706        }
707
708        final boolean allApps = savedState.getBoolean(RUNTIME_STATE_ALL_APPS_FOLDER, false);
709        if (allApps) {
710            showAllApps(false);
711        }
712
713        final int currentScreen = savedState.getInt(RUNTIME_STATE_CURRENT_SCREEN, -1);
714        if (currentScreen > -1) {
715            mWorkspace.setCurrentScreen(currentScreen);
716        }
717
718        final int addScreen = savedState.getInt(RUNTIME_STATE_PENDING_ADD_SCREEN, -1);
719        if (addScreen > -1) {
720            mAddItemCellInfo = new CellLayout.CellInfo();
721            final CellLayout.CellInfo addItemCellInfo = mAddItemCellInfo;
722            addItemCellInfo.valid = true;
723            addItemCellInfo.screen = addScreen;
724            addItemCellInfo.cellX = savedState.getInt(RUNTIME_STATE_PENDING_ADD_CELL_X);
725            addItemCellInfo.cellY = savedState.getInt(RUNTIME_STATE_PENDING_ADD_CELL_Y);
726            addItemCellInfo.spanX = savedState.getInt(RUNTIME_STATE_PENDING_ADD_SPAN_X);
727            addItemCellInfo.spanY = savedState.getInt(RUNTIME_STATE_PENDING_ADD_SPAN_Y);
728            addItemCellInfo.findVacantCellsFromOccupied(
729                    savedState.getBooleanArray(RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS),
730                    savedState.getInt(RUNTIME_STATE_PENDING_ADD_COUNT_X),
731                    savedState.getInt(RUNTIME_STATE_PENDING_ADD_COUNT_Y));
732            mRestoring = true;
733        }
734
735        boolean renameFolder = savedState.getBoolean(RUNTIME_STATE_PENDING_FOLDER_RENAME, false);
736        if (renameFolder) {
737            long id = savedState.getLong(RUNTIME_STATE_PENDING_FOLDER_RENAME_ID);
738            mFolderInfo = mModel.getFolderById(this, mFolders, id);
739            mRestoring = true;
740        }
741    }
742
743    /**
744     * Finds all the views we need and configure them properly.
745     */
746    private void setupViews() {
747        DragController dragController = mDragController;
748
749        DragLayer dragLayer = (DragLayer) findViewById(R.id.drag_layer);
750        dragLayer.setDragController(dragController);
751
752        mAllAppsGrid = (AllAppsView)dragLayer.findViewById(R.id.all_apps_view);
753        mAllAppsGrid.setLauncher(this);
754        mAllAppsGrid.setDragController(dragController);
755        ((View) mAllAppsGrid).setWillNotDraw(false); // We don't want a hole punched in our window.
756        // Manage focusability manually since this thing is always visible
757        ((View) mAllAppsGrid).setFocusable(false);
758
759        mWorkspace = (Workspace) dragLayer.findViewById(R.id.workspace);
760        final Workspace workspace = mWorkspace;
761        workspace.setHapticFeedbackEnabled(false);
762
763        DeleteZone deleteZone = (DeleteZone) dragLayer.findViewById(R.id.delete_zone);
764        mDeleteZone = deleteZone;
765
766        View handleView = findViewById(R.id.all_apps_button);
767        if (handleView != null && handleView instanceof HandleView) {
768            // we don't use handle view in xlarge mode
769            mHandleView = (HandleView)handleView;
770            mHandleView.setLauncher(this);
771            mHandleView.setOnClickListener(this);
772            mHandleView.setOnLongClickListener(this);
773        }
774
775        WidgetChooser widgetChooser = (WidgetChooser) findViewById(R.id.widget_chooser);
776        if (widgetChooser != null) {
777            WidgetListAdapter widgetGalleryAdapter = new WidgetListAdapter(this);
778            widgetChooser.setAdapter(widgetGalleryAdapter);
779            widgetChooser.setDragController(dragController);
780            widgetChooser.setLauncher(this);
781
782            FolderChooser folderChooser = (FolderChooser) findViewById(R.id.folder_chooser);
783            IntentListAdapter folderTypes = new FolderListAdapter(
784                    this, LiveFolders.ACTION_CREATE_LIVE_FOLDER);
785            folderChooser.setAdapter(folderTypes);
786            folderChooser.setLauncher(this);
787
788            ShortcutChooser shortcutChooser = (ShortcutChooser) findViewById(R.id.shortcut_chooser);
789            IntentListAdapter shortcutTypes = new IntentListAdapter(
790                    this, Intent.ACTION_CREATE_SHORTCUT);
791            shortcutChooser.setAdapter(shortcutTypes);
792            shortcutChooser.setLauncher(this);
793        } else {
794             ImageView hotseatLeft = (ImageView) findViewById(R.id.hotseat_left);
795             hotseatLeft.setContentDescription(mHotseatLabels[0]);
796             hotseatLeft.setImageDrawable(mHotseatIcons[0]);
797             ImageView hotseatRight = (ImageView) findViewById(R.id.hotseat_right);
798             hotseatRight.setContentDescription(mHotseatLabels[1]);
799             hotseatRight.setImageDrawable(mHotseatIcons[1]);
800
801             mPreviousView = (ImageView) dragLayer.findViewById(R.id.previous_screen);
802             mNextView = (ImageView) dragLayer.findViewById(R.id.next_screen);
803
804             Drawable previous = mPreviousView.getDrawable();
805             Drawable next = mNextView.getDrawable();
806             mWorkspace.setIndicators(previous, next);
807
808             mPreviousView.setHapticFeedbackEnabled(false);
809             mPreviousView.setOnLongClickListener(this);
810             mNextView.setHapticFeedbackEnabled(false);
811             mNextView.setOnLongClickListener(this);
812        }
813
814        workspace.setOnLongClickListener(this);
815        workspace.setDragController(dragController);
816        workspace.setLauncher(this);
817
818        deleteZone.setLauncher(this);
819        deleteZone.setDragController(dragController);
820        int deleteZoneHandleId;
821        if (LauncherApplication.isScreenXLarge()) {
822            deleteZoneHandleId = R.id.configure_button;
823        } else {
824            deleteZoneHandleId = R.id.all_apps_button_cluster;
825        }
826        deleteZone.setHandle(findViewById(deleteZoneHandleId));
827
828        dragController.setDragScoller(workspace);
829        dragController.setDragListener(deleteZone);
830        dragController.setScrollView(dragLayer);
831        dragController.setMoveTarget(workspace);
832
833        // The order here is bottom to top.
834        dragController.addDropTarget(workspace);
835        dragController.addDropTarget(deleteZone);
836    }
837
838    @SuppressWarnings({"UnusedDeclaration"})
839    public void previousScreen(View v) {
840        if (!isAllAppsVisible()) {
841            mWorkspace.scrollLeft();
842        }
843    }
844
845    @SuppressWarnings({"UnusedDeclaration"})
846    public void nextScreen(View v) {
847        if (!isAllAppsVisible()) {
848            mWorkspace.scrollRight();
849        }
850    }
851
852    @SuppressWarnings({"UnusedDeclaration"})
853    public void launchHotSeat(View v) {
854        if (isAllAppsVisible()) return;
855
856        int index = -1;
857        if (v.getId() == R.id.hotseat_left) {
858            index = 0;
859        } else if (v.getId() == R.id.hotseat_right) {
860            index = 1;
861        }
862
863        // reload these every tap; you never know when they might change
864        loadHotseats();
865        if (index >= 0 && index < mHotseats.length && mHotseats[index] != null) {
866            Intent intent = mHotseats[index];
867            startActivitySafely(
868                mHotseats[index],
869                "hotseat"
870            );
871        }
872    }
873
874    /**
875     * Creates a view representing a shortcut.
876     *
877     * @param info The data structure describing the shortcut.
878     *
879     * @return A View inflated from R.layout.application.
880     */
881    View createShortcut(ShortcutInfo info) {
882        return createShortcut(R.layout.application,
883                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentScreen()), info);
884    }
885
886    /**
887     * Creates a view representing a shortcut inflated from the specified resource.
888     *
889     * @param layoutResId The id of the XML layout used to create the shortcut.
890     * @param parent The group the shortcut belongs to.
891     * @param info The data structure describing the shortcut.
892     *
893     * @return A View inflated from layoutResId.
894     */
895    View createShortcut(int layoutResId, ViewGroup parent, ShortcutInfo info) {
896        TextView favorite = (TextView) mInflater.inflate(layoutResId, parent, false);
897
898        favorite.setCompoundDrawablesWithIntrinsicBounds(null,
899                new FastBitmapDrawable(info.getIcon(mIconCache)),
900                null, null);
901        favorite.setText(info.title);
902        favorite.setTag(info);
903        favorite.setOnClickListener(this);
904
905        return favorite;
906    }
907
908    /**
909     * Add an application shortcut to the workspace.
910     *
911     * @param data The intent describing the application.
912     * @param cellInfo The position on screen where to create the shortcut.
913     */
914    void completeAddApplication(Context context, Intent data, CellLayout.CellInfo cellInfo) {
915        cellInfo.screen = mWorkspace.getCurrentScreen();
916        if (!findSingleSlot(cellInfo)) return;
917
918        final ShortcutInfo info = mModel.getShortcutInfo(context.getPackageManager(),
919                data, context);
920
921        if (info != null) {
922            info.setActivity(data.getComponent(), Intent.FLAG_ACTIVITY_NEW_TASK |
923                    Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
924            info.container = ItemInfo.NO_ID;
925            mWorkspace.addApplicationShortcut(info, cellInfo, isWorkspaceLocked());
926        } else {
927            Log.e(TAG, "Couldn't find ActivityInfo for selected application: " + data);
928        }
929    }
930
931    /**
932     * Add a shortcut to the workspace.
933     *
934     * @param data The intent describing the shortcut.
935     * @param cellInfo The position on screen where to create the shortcut.
936     */
937    private void completeAddShortcut(Intent data, CellLayout.CellInfo cellInfo) {
938        cellInfo.screen = mWorkspace.getCurrentScreen();
939        if (!findSingleSlot(cellInfo)) return;
940
941        final ShortcutInfo info = mModel.addShortcut(this, data, cellInfo, false);
942
943        if (!mRestoring) {
944            final View view = createShortcut(info);
945            mWorkspace.addInCurrentScreen(view, cellInfo.cellX, cellInfo.cellY, 1, 1,
946                    isWorkspaceLocked());
947        }
948    }
949
950
951    /**
952     * Add a widget to the workspace.
953     *
954     * @param data The intent describing the appWidgetId.
955     * @param cellInfo The position on screen where to create the widget.
956     */
957    private void completeAddAppWidget(int appWidgetId, CellLayout.CellInfo cellInfo) {
958        AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
959
960        // Calculate the grid spans needed to fit this widget
961        CellLayout layout = (CellLayout) mWorkspace.getChildAt(cellInfo.screen);
962        int[] spans = layout.rectToCell(appWidgetInfo.minWidth, appWidgetInfo.minHeight, null);
963
964        // Try finding open space on Launcher screen
965        final int[] xy = mCellCoordinates;
966        if (!findSlot(cellInfo, xy, spans[0], spans[1])) {
967            if (appWidgetId != -1) mAppWidgetHost.deleteAppWidgetId(appWidgetId);
968            return;
969        }
970
971        // Build Launcher-specific widget info and save to database
972        LauncherAppWidgetInfo launcherInfo = new LauncherAppWidgetInfo(appWidgetId);
973        launcherInfo.spanX = spans[0];
974        launcherInfo.spanY = spans[1];
975
976        LauncherModel.addItemToDatabase(this, launcherInfo,
977                LauncherSettings.Favorites.CONTAINER_DESKTOP,
978                mWorkspace.getCurrentScreen(), xy[0], xy[1], false);
979
980        if (!mRestoring) {
981            mDesktopItems.add(launcherInfo);
982
983            // Perform actual inflation because we're live
984            launcherInfo.hostView = mAppWidgetHost.createView(this, appWidgetId, appWidgetInfo);
985
986            launcherInfo.hostView.setAppWidget(appWidgetId, appWidgetInfo);
987            launcherInfo.hostView.setTag(launcherInfo);
988
989            mWorkspace.addInCurrentScreen(launcherInfo.hostView, xy[0], xy[1],
990                    launcherInfo.spanX, launcherInfo.spanY, isWorkspaceLocked());
991        }
992    }
993
994    public void removeAppWidget(LauncherAppWidgetInfo launcherInfo) {
995        mDesktopItems.remove(launcherInfo);
996        launcherInfo.hostView = null;
997    }
998
999    public LauncherAppWidgetHost getAppWidgetHost() {
1000        return mAppWidgetHost;
1001    }
1002
1003    void closeSystemDialogs() {
1004        getWindow().closeAllPanels();
1005
1006        try {
1007            dismissDialog(DIALOG_CREATE_SHORTCUT);
1008            // Unlock the workspace if the dialog was showing
1009        } catch (Exception e) {
1010            // An exception is thrown if the dialog is not visible, which is fine
1011        }
1012
1013        try {
1014            dismissDialog(DIALOG_RENAME_FOLDER);
1015            // Unlock the workspace if the dialog was showing
1016        } catch (Exception e) {
1017            // An exception is thrown if the dialog is not visible, which is fine
1018        }
1019
1020        // Whatever we were doing is hereby canceled.
1021        mWaitingForResult = false;
1022    }
1023
1024    @Override
1025    protected void onNewIntent(Intent intent) {
1026        super.onNewIntent(intent);
1027
1028        // Close the menu
1029        if (Intent.ACTION_MAIN.equals(intent.getAction())) {
1030            // also will cancel mWaitingForResult.
1031            closeSystemDialogs();
1032
1033            boolean alreadyOnHome = ((intent.getFlags() & Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT)
1034                        != Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT);
1035            boolean allAppsVisible = isAllAppsVisible();
1036
1037            // TODO: Figure out the right thing to do in XLarge mode here
1038            if (!mWorkspace.isDefaultScreenShowing()) {
1039                mWorkspace.moveToDefaultScreen(alreadyOnHome && !allAppsVisible);
1040            }
1041            closeAllApps(alreadyOnHome && allAppsVisible);
1042            hideCustomizationDrawer();
1043
1044            final View v = getWindow().peekDecorView();
1045            if (v != null && v.getWindowToken() != null) {
1046                InputMethodManager imm = (InputMethodManager)getSystemService(
1047                        INPUT_METHOD_SERVICE);
1048                imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
1049            }
1050        }
1051    }
1052
1053    @Override
1054    protected void onRestoreInstanceState(Bundle savedInstanceState) {
1055        // Do not call super here
1056        mSavedInstanceState = savedInstanceState;
1057
1058        if (mHomeCustomizationDrawer != null) {
1059            String cur = savedInstanceState.getString("currentTab");
1060            if (cur != null) {
1061                mHomeCustomizationDrawer.setCurrentTabByTag(cur);
1062            }
1063        }
1064    }
1065
1066    @Override
1067    protected void onSaveInstanceState(Bundle outState) {
1068        outState.putInt(RUNTIME_STATE_CURRENT_SCREEN, mWorkspace.getCurrentScreen());
1069
1070        final ArrayList<Folder> folders = mWorkspace.getOpenFolders();
1071        if (folders.size() > 0) {
1072            final int count = folders.size();
1073            long[] ids = new long[count];
1074            for (int i = 0; i < count; i++) {
1075                final FolderInfo info = folders.get(i).getInfo();
1076                ids[i] = info.id;
1077            }
1078            outState.putLongArray(RUNTIME_STATE_USER_FOLDERS, ids);
1079        } else {
1080            super.onSaveInstanceState(outState);
1081        }
1082
1083        // TODO should not do this if the drawer is currently closing.
1084        if (isAllAppsVisible()) {
1085            outState.putBoolean(RUNTIME_STATE_ALL_APPS_FOLDER, true);
1086        }
1087
1088        if (mAddItemCellInfo != null && mAddItemCellInfo.valid && mWaitingForResult) {
1089            final CellLayout.CellInfo addItemCellInfo = mAddItemCellInfo;
1090            final CellLayout layout = (CellLayout) mWorkspace.getChildAt(addItemCellInfo.screen);
1091
1092            outState.putInt(RUNTIME_STATE_PENDING_ADD_SCREEN, addItemCellInfo.screen);
1093            outState.putInt(RUNTIME_STATE_PENDING_ADD_CELL_X, addItemCellInfo.cellX);
1094            outState.putInt(RUNTIME_STATE_PENDING_ADD_CELL_Y, addItemCellInfo.cellY);
1095            outState.putInt(RUNTIME_STATE_PENDING_ADD_SPAN_X, addItemCellInfo.spanX);
1096            outState.putInt(RUNTIME_STATE_PENDING_ADD_SPAN_Y, addItemCellInfo.spanY);
1097            outState.putInt(RUNTIME_STATE_PENDING_ADD_COUNT_X, layout.getCountX());
1098            outState.putInt(RUNTIME_STATE_PENDING_ADD_COUNT_Y, layout.getCountY());
1099            outState.putBooleanArray(RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS,
1100                   layout.getOccupiedCellsFlattened());
1101        }
1102
1103        if (mFolderInfo != null && mWaitingForResult) {
1104            outState.putBoolean(RUNTIME_STATE_PENDING_FOLDER_RENAME, true);
1105            outState.putLong(RUNTIME_STATE_PENDING_FOLDER_RENAME_ID, mFolderInfo.id);
1106        }
1107
1108        if (mHomeCustomizationDrawer != null) {
1109            String currentTabTag = mHomeCustomizationDrawer.getCurrentTabTag();
1110            if (currentTabTag != null) {
1111                outState.putString("currentTab", currentTabTag);
1112            }
1113        }
1114    }
1115
1116    @Override
1117    public void onDestroy() {
1118        super.onDestroy();
1119
1120        try {
1121            mAppWidgetHost.stopListening();
1122        } catch (NullPointerException ex) {
1123            Log.w(TAG, "problem while stopping AppWidgetHost during Launcher destruction", ex);
1124        }
1125
1126        TextKeyListener.getInstance().release();
1127
1128        mModel.stopLoader();
1129
1130        unbindDesktopItems();
1131
1132        getContentResolver().unregisterContentObserver(mWidgetObserver);
1133
1134        // Some launcher layouts don't have a previous and next view
1135        if (mPreviousView != null) {
1136            dismissPreview(mPreviousView);
1137        }
1138        if (mNextView != null) {
1139            dismissPreview(mNextView);
1140        }
1141
1142        unregisterReceiver(mCloseSystemDialogsReceiver);
1143    }
1144
1145    @Override
1146    public void startActivityForResult(Intent intent, int requestCode) {
1147        if (requestCode >= 0) mWaitingForResult = true;
1148        super.startActivityForResult(intent, requestCode);
1149    }
1150
1151    @Override
1152    public void startSearch(String initialQuery, boolean selectInitialQuery,
1153            Bundle appSearchData, boolean globalSearch) {
1154
1155        closeAllApps(true);
1156
1157        if (initialQuery == null) {
1158            // Use any text typed in the launcher as the initial query
1159            initialQuery = getTypedText();
1160            clearTypedText();
1161        }
1162        if (appSearchData == null) {
1163            appSearchData = new Bundle();
1164            appSearchData.putString(Search.SOURCE, "launcher-search");
1165        }
1166
1167        final SearchManager searchManager =
1168                (SearchManager) getSystemService(Context.SEARCH_SERVICE);
1169        searchManager.startSearch(initialQuery, selectInitialQuery, getComponentName(),
1170            appSearchData, globalSearch);
1171    }
1172
1173    @Override
1174    public boolean onCreateOptionsMenu(Menu menu) {
1175        if (isWorkspaceLocked()) {
1176            return false;
1177        }
1178
1179        super.onCreateOptionsMenu(menu);
1180
1181        menu.add(MENU_GROUP_ADD, MENU_ADD, 0, R.string.menu_add)
1182                .setIcon(android.R.drawable.ic_menu_add)
1183                .setAlphabeticShortcut('A');
1184        menu.add(MENU_GROUP_WALLPAPER, MENU_WALLPAPER_SETTINGS, 0, R.string.menu_wallpaper)
1185                 .setIcon(android.R.drawable.ic_menu_gallery)
1186                 .setAlphabeticShortcut('W');
1187        menu.add(0, MENU_SEARCH, 0, R.string.menu_search)
1188                .setIcon(android.R.drawable.ic_search_category_default)
1189                .setAlphabeticShortcut(SearchManager.MENU_KEY);
1190        menu.add(0, MENU_NOTIFICATIONS, 0, R.string.menu_notifications)
1191                .setIcon(com.android.internal.R.drawable.ic_menu_notifications)
1192                .setAlphabeticShortcut('N');
1193
1194        final Intent settings = new Intent(android.provider.Settings.ACTION_SETTINGS);
1195        settings.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
1196                Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
1197
1198        menu.add(0, MENU_SETTINGS, 0, R.string.menu_settings)
1199                .setIcon(android.R.drawable.ic_menu_preferences).setAlphabeticShortcut('P')
1200                .setIntent(settings);
1201
1202        return true;
1203    }
1204
1205    @Override
1206    public boolean onPrepareOptionsMenu(Menu menu) {
1207        super.onPrepareOptionsMenu(menu);
1208
1209        // If all apps is animating, don't show the menu, because we don't know
1210        // which one to show.
1211        if (mAllAppsGrid.isAnimating()) {
1212            return false;
1213        }
1214
1215        // Only show the add and wallpaper options when we're not in all apps.
1216        boolean visible = !mAllAppsGrid.isVisible();
1217        menu.setGroupVisible(MENU_GROUP_ADD, visible);
1218        menu.setGroupVisible(MENU_GROUP_WALLPAPER, visible);
1219
1220        // Disable add if the workspace is full.
1221        if (visible) {
1222            mMenuAddInfo = mWorkspace.findAllVacantCells(null);
1223            menu.setGroupEnabled(MENU_GROUP_ADD, mMenuAddInfo != null && mMenuAddInfo.valid);
1224        }
1225
1226        return true;
1227    }
1228
1229    // we need to initialize mAddItemCellInfo before adding something to the homescreen -- when
1230    // using the settings menu to add an item, something similar happens in showAddDialog
1231    public void prepareAddItemFromHomeCustomizationDrawer() {
1232        mMenuAddInfo = mWorkspace.findAllVacantCells(null);
1233        mAddItemCellInfo = mMenuAddInfo;
1234    }
1235
1236    @Override
1237    public boolean onOptionsItemSelected(MenuItem item) {
1238        switch (item.getItemId()) {
1239            case MENU_ADD:
1240                addItems();
1241                return true;
1242            case MENU_WALLPAPER_SETTINGS:
1243                startWallpaper();
1244                return true;
1245            case MENU_SEARCH:
1246                onSearchRequested();
1247                return true;
1248            case MENU_NOTIFICATIONS:
1249                showNotifications();
1250                return true;
1251        }
1252
1253        return super.onOptionsItemSelected(item);
1254    }
1255
1256    /**
1257     * Indicates that we want global search for this activity by setting the globalSearch
1258     * argument for {@link #startSearch} to true.
1259     */
1260
1261    @Override
1262    public boolean onSearchRequested() {
1263        startSearch(null, false, null, true);
1264        return true;
1265    }
1266
1267    public boolean isWorkspaceLocked() {
1268        return mWorkspaceLoading || mWaitingForResult;
1269    }
1270
1271    private void addItems() {
1272        closeAllApps(true);
1273        if (LauncherApplication.isScreenXLarge()) {
1274            // Animate the widget chooser up from the bottom of the screen
1275            if (!isCustomizationDrawerVisible()) {
1276                showCustomizationDrawer();
1277                mWorkspace.shrinkToTop();
1278            }
1279        } else {
1280            showAddDialog(mMenuAddInfo);
1281        }
1282    }
1283
1284    void addAppWidgetFromDrop(ComponentName appWidgetProvider, CellLayout.CellInfo cellInfo) {
1285        mAddItemCellInfo = cellInfo;
1286        int appWidgetId = getAppWidgetHost().allocateAppWidgetId();
1287        AppWidgetManager.getInstance(this).bindAppWidgetId(appWidgetId, appWidgetProvider);
1288        addAppWidgetImpl(appWidgetId);
1289    }
1290
1291    void addAppWidgetFromPick(Intent data) {
1292        // TODO: catch bad widget exception when sent
1293        int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
1294        // TODO: Is this log message meaningful?
1295        if (LOGD) Log.d(TAG, "dumping extras content=" + data.getExtras());
1296        addAppWidgetImpl(appWidgetId);
1297    }
1298
1299    void addAppWidgetImpl(int appWidgetId) {
1300        AppWidgetProviderInfo appWidget = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
1301
1302        if (appWidget.configure != null) {
1303            // Launch over to configure widget, if needed
1304            Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_CONFIGURE);
1305            intent.setComponent(appWidget.configure);
1306            intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
1307
1308            startActivityForResultSafely(intent, REQUEST_CREATE_APPWIDGET);
1309        } else {
1310            // Otherwise just add it
1311            completeAddAppWidget(appWidgetId, mAddItemCellInfo);
1312        }
1313    }
1314
1315    void processShortcut(Intent intent) {
1316        // Handle case where user selected "Applications"
1317        String applicationName = getResources().getString(R.string.group_applications);
1318        String shortcutName = intent.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
1319
1320        if (applicationName != null && applicationName.equals(shortcutName)) {
1321            Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
1322            mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
1323
1324            Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
1325            pickIntent.putExtra(Intent.EXTRA_INTENT, mainIntent);
1326            startActivityForResult(pickIntent, REQUEST_PICK_APPLICATION);
1327        } else {
1328            startActivityForResult(intent, REQUEST_CREATE_SHORTCUT);
1329        }
1330    }
1331
1332    void addLiveFolder(Intent intent) {
1333        // Handle case where user selected "Folder"
1334        String folderName = getResources().getString(R.string.group_folder);
1335        String shortcutName = intent.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
1336
1337        if (folderName != null && folderName.equals(shortcutName)) {
1338            addFolder();
1339        } else {
1340            startActivityForResult(intent, REQUEST_CREATE_LIVE_FOLDER);
1341        }
1342    }
1343
1344    void addFolder() {
1345        UserFolderInfo folderInfo = new UserFolderInfo();
1346        folderInfo.title = getText(R.string.folder_name);
1347
1348        CellLayout.CellInfo cellInfo = mAddItemCellInfo;
1349        cellInfo.screen = mWorkspace.getCurrentScreen();
1350        if (!findSingleSlot(cellInfo)) return;
1351
1352        // Update the model
1353        LauncherModel.addItemToDatabase(this, folderInfo,
1354                LauncherSettings.Favorites.CONTAINER_DESKTOP,
1355                mWorkspace.getCurrentScreen(), cellInfo.cellX, cellInfo.cellY, false);
1356        mFolders.put(folderInfo.id, folderInfo);
1357
1358        // Create the view
1359        FolderIcon newFolder = FolderIcon.fromXml(R.layout.folder_icon, this,
1360                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentScreen()), folderInfo);
1361        mWorkspace.addInCurrentScreen(newFolder,
1362                cellInfo.cellX, cellInfo.cellY, 1, 1, isWorkspaceLocked());
1363    }
1364
1365    void removeFolder(FolderInfo folder) {
1366        mFolders.remove(folder.id);
1367    }
1368
1369    private void completeAddLiveFolder(Intent data, CellLayout.CellInfo cellInfo) {
1370        cellInfo.screen = mWorkspace.getCurrentScreen();
1371        if (!findSingleSlot(cellInfo)) return;
1372
1373        final LiveFolderInfo info = addLiveFolder(this, data, cellInfo, false);
1374
1375        if (!mRestoring) {
1376            final View view = LiveFolderIcon.fromXml(R.layout.live_folder_icon, this,
1377                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentScreen()), info);
1378            mWorkspace.addInCurrentScreen(view, cellInfo.cellX, cellInfo.cellY, 1, 1,
1379                    isWorkspaceLocked());
1380        }
1381    }
1382
1383    static LiveFolderInfo addLiveFolder(Context context, Intent data,
1384            CellLayout.CellInfo cellInfo, boolean notify) {
1385
1386        Intent baseIntent = data.getParcelableExtra(LiveFolders.EXTRA_LIVE_FOLDER_BASE_INTENT);
1387        String name = data.getStringExtra(LiveFolders.EXTRA_LIVE_FOLDER_NAME);
1388
1389        Drawable icon = null;
1390        Intent.ShortcutIconResource iconResource = null;
1391
1392        Parcelable extra = data.getParcelableExtra(LiveFolders.EXTRA_LIVE_FOLDER_ICON);
1393        if (extra != null && extra instanceof Intent.ShortcutIconResource) {
1394            try {
1395                iconResource = (Intent.ShortcutIconResource) extra;
1396                final PackageManager packageManager = context.getPackageManager();
1397                Resources resources = packageManager.getResourcesForApplication(
1398                        iconResource.packageName);
1399                final int id = resources.getIdentifier(iconResource.resourceName, null, null);
1400                icon = resources.getDrawable(id);
1401            } catch (Exception e) {
1402                Log.w(TAG, "Could not load live folder icon: " + extra);
1403            }
1404        }
1405
1406        if (icon == null) {
1407            icon = context.getResources().getDrawable(R.drawable.ic_launcher_folder);
1408        }
1409
1410        final LiveFolderInfo info = new LiveFolderInfo();
1411        info.icon = Utilities.createIconBitmap(icon, context);
1412        info.title = name;
1413        info.iconResource = iconResource;
1414        info.uri = data.getData();
1415        info.baseIntent = baseIntent;
1416        info.displayMode = data.getIntExtra(LiveFolders.EXTRA_LIVE_FOLDER_DISPLAY_MODE,
1417                LiveFolders.DISPLAY_MODE_GRID);
1418
1419        LauncherModel.addItemToDatabase(context, info, LauncherSettings.Favorites.CONTAINER_DESKTOP,
1420                cellInfo.screen, cellInfo.cellX, cellInfo.cellY, notify);
1421        mFolders.put(info.id, info);
1422
1423        return info;
1424    }
1425
1426    private boolean findSingleSlot(CellLayout.CellInfo cellInfo) {
1427        final int[] xy = new int[2];
1428        if (findSlot(cellInfo, xy, 1, 1)) {
1429            cellInfo.cellX = xy[0];
1430            cellInfo.cellY = xy[1];
1431            return true;
1432        }
1433        return false;
1434    }
1435
1436    private boolean findSlot(CellLayout.CellInfo cellInfo, int[] xy, int spanX, int spanY) {
1437        if (!cellInfo.findCellForSpan(xy, spanX, spanY)) {
1438            boolean[] occupied = mSavedState != null ?
1439                    mSavedState.getBooleanArray(RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS) : null;
1440            cellInfo = mWorkspace.findAllVacantCells(occupied);
1441            if (!cellInfo.findCellForSpan(xy, spanX, spanY)) {
1442                Toast.makeText(this, getString(R.string.out_of_space), Toast.LENGTH_SHORT).show();
1443                return false;
1444            }
1445        }
1446        return true;
1447    }
1448
1449    private void showNotifications() {
1450        final StatusBarManager statusBar = (StatusBarManager) getSystemService(STATUS_BAR_SERVICE);
1451        if (statusBar != null) {
1452            statusBar.expand();
1453        }
1454    }
1455
1456    private void startWallpaper() {
1457        closeAllApps(true);
1458        final Intent pickWallpaper = new Intent(Intent.ACTION_SET_WALLPAPER);
1459        Intent chooser = Intent.createChooser(pickWallpaper,
1460                getText(R.string.chooser_wallpaper));
1461        // NOTE: Adds a configure option to the chooser if the wallpaper supports it
1462        //       Removed in Eclair MR1
1463//        WallpaperManager wm = (WallpaperManager)
1464//                getSystemService(Context.WALLPAPER_SERVICE);
1465//        WallpaperInfo wi = wm.getWallpaperInfo();
1466//        if (wi != null && wi.getSettingsActivity() != null) {
1467//            LabeledIntent li = new LabeledIntent(getPackageName(),
1468//                    R.string.configure_wallpaper, 0);
1469//            li.setClassName(wi.getPackageName(), wi.getSettingsActivity());
1470//            chooser.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Intent[] { li });
1471//        }
1472        startActivityForResult(chooser, REQUEST_PICK_WALLPAPER);
1473    }
1474
1475    /**
1476     * Registers various content observers. The current implementation registers
1477     * only a favorites observer to keep track of the favorites applications.
1478     */
1479    private void registerContentObservers() {
1480        ContentResolver resolver = getContentResolver();
1481        resolver.registerContentObserver(LauncherProvider.CONTENT_APPWIDGET_RESET_URI,
1482                true, mWidgetObserver);
1483    }
1484
1485    @Override
1486    public boolean dispatchKeyEvent(KeyEvent event) {
1487        if (event.getAction() == KeyEvent.ACTION_DOWN) {
1488            switch (event.getKeyCode()) {
1489                case KeyEvent.KEYCODE_HOME:
1490                    return true;
1491                case KeyEvent.KEYCODE_VOLUME_DOWN:
1492                    if (SystemProperties.getInt("debug.launcher2.dumpstate", 0) != 0) {
1493                        dumpState();
1494                        return true;
1495                    }
1496                    break;
1497            }
1498        } else if (event.getAction() == KeyEvent.ACTION_UP) {
1499            switch (event.getKeyCode()) {
1500                case KeyEvent.KEYCODE_HOME:
1501                    return true;
1502            }
1503        }
1504
1505        return super.dispatchKeyEvent(event);
1506    }
1507
1508    @Override
1509    public void onBackPressed() {
1510        if (isAllAppsVisible()) {
1511            closeAllApps(true);
1512        } else if (isCustomizationDrawerVisible()) {
1513            hideCustomizationDrawer();
1514        } else {
1515            closeFolder();
1516        }
1517        // Some launcher layouts don't have a previous and next view
1518        if (mPreviousView != null) {
1519            dismissPreview(mPreviousView);
1520            dismissPreview(mNextView);
1521        }
1522    }
1523
1524    private void closeFolder() {
1525        Folder folder = mWorkspace.getOpenFolder();
1526        if (folder != null) {
1527            closeFolder(folder);
1528        }
1529    }
1530
1531    void closeFolder(Folder folder) {
1532        folder.getInfo().opened = false;
1533        ViewGroup parent = (ViewGroup) folder.getParent();
1534        if (parent != null) {
1535            parent.removeView(folder);
1536            if (folder instanceof DropTarget) {
1537                // Live folders aren't DropTargets.
1538                mDragController.removeDropTarget((DropTarget)folder);
1539            }
1540        }
1541        folder.onClose();
1542    }
1543
1544    /**
1545     * Re-listen when widgets are reset.
1546     */
1547    private void onAppWidgetReset() {
1548        mAppWidgetHost.startListening();
1549    }
1550
1551    /**
1552     * Go through the and disconnect any of the callbacks in the drawables and the views or we
1553     * leak the previous Home screen on orientation change.
1554     */
1555    private void unbindDesktopItems() {
1556        for (ItemInfo item: mDesktopItems) {
1557            item.unbind();
1558        }
1559    }
1560
1561    /**
1562     * Launches the intent referred by the clicked shortcut.
1563     *
1564     * @param v The view representing the clicked shortcut.
1565     */
1566    public void onClick(View v) {
1567        Object tag = v.getTag();
1568        if (tag instanceof ShortcutInfo) {
1569            // Open shortcut
1570            final Intent intent = ((ShortcutInfo) tag).intent;
1571            int[] pos = new int[2];
1572            v.getLocationOnScreen(pos);
1573            intent.setSourceBounds(new Rect(pos[0], pos[1],
1574                    pos[0] + v.getWidth(), pos[1] + v.getHeight()));
1575            startActivitySafely(intent, tag);
1576        } else if (tag instanceof FolderInfo) {
1577            handleFolderClick((FolderInfo) tag);
1578        } else if (v == mHandleView) {
1579            if (isAllAppsVisible()) {
1580                closeAllApps(true);
1581            } else {
1582                showAllApps(true);
1583            }
1584        }
1585    }
1586
1587    public boolean onTouch(View v, MotionEvent event) {
1588        // this is an intercepted event being forwarded from mWorkspace;
1589        // clicking anywhere on the workspace causes the drawer to slide down
1590        hideCustomizationDrawer();
1591        return false;
1592    }
1593
1594    /**
1595     * Event handler for the search button
1596     *
1597     * @param v The view that was clicked.
1598     */
1599    public void onClickSearchButton(View v) {
1600        Intent i = new Intent(SearchManager.INTENT_ACTION_GLOBAL_SEARCH);
1601        View button = findViewById(R.id.search_button);
1602        i.setSourceBounds(
1603                new Rect(button.getLeft(), button.getTop(), button.getRight(), button.getBottom()));
1604        startActivity(i);
1605    }
1606
1607    /**
1608     * Event handler for the "gear" button that appears on the home screen, which
1609     * enters home screen customization mode.
1610     *
1611     * @param v The view that was clicked.
1612     */
1613    public void onClickConfigureButton(View v) {
1614        addItems();
1615    }
1616
1617    /**
1618     * Event handler for the "grid" button that appears on the home screen, which
1619     * enters all apps mode.
1620     *
1621     * @param v The view that was clicked.
1622     */
1623    public void onClickAllAppsButton(View v) {
1624        showAllApps(true);
1625    }
1626
1627    void startActivitySafely(Intent intent, Object tag) {
1628        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1629        try {
1630            startActivity(intent);
1631        } catch (ActivityNotFoundException e) {
1632            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
1633            Log.e(TAG, "Unable to launch. tag=" + tag + " intent=" + intent, e);
1634        } catch (SecurityException e) {
1635            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
1636            Log.e(TAG, "Launcher does not have the permission to launch " + intent +
1637                    ". Make sure to create a MAIN intent-filter for the corresponding activity " +
1638                    "or use the exported attribute for this activity. "
1639                    + "tag="+ tag + " intent=" + intent, e);
1640        }
1641    }
1642
1643    void startActivityForResultSafely(Intent intent, int requestCode) {
1644        try {
1645            startActivityForResult(intent, requestCode);
1646        } catch (ActivityNotFoundException e) {
1647            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
1648        } catch (SecurityException e) {
1649            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
1650            Log.e(TAG, "Launcher does not have the permission to launch " + intent +
1651                    ". Make sure to create a MAIN intent-filter for the corresponding activity " +
1652                    "or use the exported attribute for this activity.", e);
1653        }
1654    }
1655
1656    private void handleFolderClick(FolderInfo folderInfo) {
1657        if (!folderInfo.opened) {
1658            // Close any open folder
1659            closeFolder();
1660            // Open the requested folder
1661            openFolder(folderInfo);
1662        } else {
1663            // Find the open folder...
1664            Folder openFolder = mWorkspace.getFolderForTag(folderInfo);
1665            int folderScreen;
1666            if (openFolder != null) {
1667                folderScreen = mWorkspace.getScreenForView(openFolder);
1668                // .. and close it
1669                closeFolder(openFolder);
1670                if (folderScreen != mWorkspace.getCurrentScreen()) {
1671                    // Close any folder open on the current screen
1672                    closeFolder();
1673                    // Pull the folder onto this screen
1674                    openFolder(folderInfo);
1675                }
1676            }
1677        }
1678    }
1679
1680    /**
1681     * Opens the user fodler described by the specified tag. The opening of the folder
1682     * is animated relative to the specified View. If the View is null, no animation
1683     * is played.
1684     *
1685     * @param folderInfo The FolderInfo describing the folder to open.
1686     */
1687    public void openFolder(FolderInfo folderInfo) {
1688        Folder openFolder;
1689
1690        if (folderInfo instanceof UserFolderInfo) {
1691            openFolder = UserFolder.fromXml(this);
1692        } else if (folderInfo instanceof LiveFolderInfo) {
1693            openFolder = com.android.launcher2.LiveFolder.fromXml(this, folderInfo);
1694        } else {
1695            return;
1696        }
1697
1698        openFolder.setDragController(mDragController);
1699        openFolder.setLauncher(this);
1700
1701        openFolder.bind(folderInfo);
1702        folderInfo.opened = true;
1703
1704        mWorkspace.addInFullScreen(openFolder, folderInfo.screen);
1705
1706        openFolder.onOpen();
1707    }
1708
1709    public boolean onLongClick(View v) {
1710        switch (v.getId()) {
1711            case R.id.previous_screen:
1712                if (!isAllAppsVisible()) {
1713                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
1714                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
1715                    showPreviews(v);
1716                }
1717                return true;
1718            case R.id.next_screen:
1719                if (!isAllAppsVisible()) {
1720                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
1721                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
1722                    showPreviews(v);
1723                }
1724                return true;
1725            case R.id.all_apps_button:
1726                if (!isAllAppsVisible()) {
1727                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
1728                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
1729                    showPreviews(v);
1730                }
1731                return true;
1732        }
1733
1734        if (isWorkspaceLocked()) {
1735            return false;
1736        }
1737
1738        if (!(v instanceof CellLayout)) {
1739            v = (View) v.getParent();
1740        }
1741
1742        CellLayout.CellInfo cellInfo = (CellLayout.CellInfo) v.getTag();
1743
1744        // This happens when long clicking an item with the dpad/trackball
1745        if (cellInfo == null) {
1746            return true;
1747        }
1748
1749        if (mWorkspace.allowLongPress()) {
1750            if (cellInfo.cell == null) {
1751                if (cellInfo.valid) {
1752                    // User long pressed on empty space
1753                    mWorkspace.setAllowLongPress(false);
1754                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
1755                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
1756                    showAddDialog(cellInfo);
1757                }
1758            } else {
1759                if (!(cellInfo.cell instanceof Folder)) {
1760                    // User long pressed on an item
1761                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
1762                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
1763                    mWorkspace.startDrag(cellInfo);
1764                }
1765            }
1766        }
1767        return true;
1768    }
1769
1770    @SuppressWarnings({"unchecked"})
1771    private void dismissPreview(final View v) {
1772        final PopupWindow window = (PopupWindow) v.getTag();
1773        if (window != null) {
1774            window.setOnDismissListener(new PopupWindow.OnDismissListener() {
1775                public void onDismiss() {
1776                    ViewGroup group = (ViewGroup) v.getTag(R.id.workspace);
1777                    int count = group.getChildCount();
1778                    for (int i = 0; i < count; i++) {
1779                        ((ImageView) group.getChildAt(i)).setImageDrawable(null);
1780                    }
1781                    ArrayList<Bitmap> bitmaps = (ArrayList<Bitmap>) v.getTag(R.id.icon);
1782                    for (Bitmap bitmap : bitmaps) bitmap.recycle();
1783
1784                    v.setTag(R.id.workspace, null);
1785                    v.setTag(R.id.icon, null);
1786                    window.setOnDismissListener(null);
1787                }
1788            });
1789            window.dismiss();
1790        }
1791        v.setTag(null);
1792    }
1793
1794    private void showPreviews(View anchor) {
1795        showPreviews(anchor, 0, mWorkspace.getChildCount());
1796    }
1797
1798    private void showPreviews(final View anchor, int start, int end) {
1799        final Resources resources = getResources();
1800        final Workspace workspace = mWorkspace;
1801
1802        CellLayout cell = ((CellLayout) workspace.getChildAt(start));
1803
1804        float max = workspace.getChildCount();
1805
1806        final Rect r = new Rect();
1807        resources.getDrawable(R.drawable.preview_background).getPadding(r);
1808        int extraW = (int) ((r.left + r.right) * max);
1809        int extraH = r.top + r.bottom;
1810
1811        int aW = cell.getWidth() - extraW;
1812        float w = aW / max;
1813
1814        int width = cell.getWidth();
1815        int height = cell.getHeight();
1816        int x = cell.getLeftPadding();
1817        int y = cell.getTopPadding();
1818        width -= (x + cell.getRightPadding());
1819        height -= (y + cell.getBottomPadding());
1820
1821        float scale = w / width;
1822
1823        int count = end - start;
1824
1825        final float sWidth = width * scale;
1826        float sHeight = height * scale;
1827
1828        LinearLayout preview = new LinearLayout(this);
1829
1830        PreviewTouchHandler handler = new PreviewTouchHandler(anchor);
1831        ArrayList<Bitmap> bitmaps = new ArrayList<Bitmap>(count);
1832
1833        for (int i = start; i < end; i++) {
1834            ImageView image = new ImageView(this);
1835            cell = (CellLayout) workspace.getChildAt(i);
1836
1837            final Bitmap bitmap = Bitmap.createBitmap((int) sWidth, (int) sHeight,
1838                    Bitmap.Config.ARGB_8888);
1839
1840            final Canvas c = new Canvas(bitmap);
1841            c.scale(scale, scale);
1842            c.translate(-cell.getLeftPadding(), -cell.getTopPadding());
1843            cell.dispatchDraw(c);
1844
1845            image.setBackgroundDrawable(resources.getDrawable(R.drawable.preview_background));
1846            image.setImageBitmap(bitmap);
1847            image.setTag(i);
1848            image.setOnClickListener(handler);
1849            image.setOnFocusChangeListener(handler);
1850            image.setFocusable(true);
1851            if (i == mWorkspace.getCurrentScreen()) image.requestFocus();
1852
1853            preview.addView(image,
1854                    LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
1855
1856            bitmaps.add(bitmap);
1857        }
1858
1859        final PopupWindow p = new PopupWindow(this);
1860        p.setContentView(preview);
1861        p.setWidth((int) (sWidth * count + extraW));
1862        p.setHeight((int) (sHeight + extraH));
1863        p.setAnimationStyle(R.style.AnimationPreview);
1864        p.setOutsideTouchable(true);
1865        p.setFocusable(true);
1866        p.setBackgroundDrawable(new ColorDrawable(0));
1867        p.showAsDropDown(anchor, 0, 0);
1868
1869        p.setOnDismissListener(new PopupWindow.OnDismissListener() {
1870            public void onDismiss() {
1871                dismissPreview(anchor);
1872            }
1873        });
1874
1875        anchor.setTag(p);
1876        anchor.setTag(R.id.workspace, preview);
1877        anchor.setTag(R.id.icon, bitmaps);
1878    }
1879
1880    class PreviewTouchHandler implements View.OnClickListener, Runnable, View.OnFocusChangeListener {
1881        private final View mAnchor;
1882
1883        public PreviewTouchHandler(View anchor) {
1884            mAnchor = anchor;
1885        }
1886
1887        public void onClick(View v) {
1888            mWorkspace.snapToScreen((Integer) v.getTag());
1889            v.post(this);
1890        }
1891
1892        public void run() {
1893            dismissPreview(mAnchor);
1894        }
1895
1896        public void onFocusChange(View v, boolean hasFocus) {
1897            if (hasFocus) {
1898                mWorkspace.snapToScreen((Integer) v.getTag());
1899            }
1900        }
1901    }
1902
1903    Workspace getWorkspace() {
1904        return mWorkspace;
1905    }
1906
1907    @Override
1908    protected Dialog onCreateDialog(int id) {
1909        switch (id) {
1910            case DIALOG_CREATE_SHORTCUT:
1911                return new CreateShortcut().createDialog();
1912            case DIALOG_RENAME_FOLDER:
1913                return new RenameFolder().createDialog();
1914        }
1915
1916        return super.onCreateDialog(id);
1917    }
1918
1919    @Override
1920    protected void onPrepareDialog(int id, Dialog dialog) {
1921        switch (id) {
1922            case DIALOG_CREATE_SHORTCUT:
1923                break;
1924            case DIALOG_RENAME_FOLDER:
1925                if (mFolderInfo != null) {
1926                    EditText input = (EditText) dialog.findViewById(R.id.folder_name);
1927                    final CharSequence text = mFolderInfo.title;
1928                    input.setText(text);
1929                    input.setSelection(0, text.length());
1930                }
1931                break;
1932        }
1933    }
1934
1935    void showRenameDialog(FolderInfo info) {
1936        mFolderInfo = info;
1937        mWaitingForResult = true;
1938        showDialog(DIALOG_RENAME_FOLDER);
1939    }
1940
1941    private void showAddDialog(CellLayout.CellInfo cellInfo) {
1942        mAddItemCellInfo = cellInfo;
1943        mWaitingForResult = true;
1944        showDialog(DIALOG_CREATE_SHORTCUT);
1945    }
1946
1947    private void pickShortcut() {
1948        // Insert extra item to handle picking application
1949        Bundle bundle = new Bundle();
1950
1951        ArrayList<String> shortcutNames = new ArrayList<String>();
1952        shortcutNames.add(getString(R.string.group_applications));
1953        bundle.putStringArrayList(Intent.EXTRA_SHORTCUT_NAME, shortcutNames);
1954
1955        ArrayList<ShortcutIconResource> shortcutIcons = new ArrayList<ShortcutIconResource>();
1956        shortcutIcons.add(ShortcutIconResource.fromContext(Launcher.this,
1957                        R.drawable.ic_launcher_application));
1958        bundle.putParcelableArrayList(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, shortcutIcons);
1959
1960        Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
1961        pickIntent.putExtra(Intent.EXTRA_INTENT, new Intent(Intent.ACTION_CREATE_SHORTCUT));
1962        pickIntent.putExtra(Intent.EXTRA_TITLE, getText(R.string.title_select_shortcut));
1963        pickIntent.putExtras(bundle);
1964
1965        startActivityForResult(pickIntent, REQUEST_PICK_SHORTCUT);
1966    }
1967
1968    private class RenameFolder {
1969        private EditText mInput;
1970
1971        Dialog createDialog() {
1972            final View layout = View.inflate(Launcher.this, R.layout.rename_folder, null);
1973            mInput = (EditText) layout.findViewById(R.id.folder_name);
1974
1975            AlertDialog.Builder builder = new AlertDialog.Builder(Launcher.this);
1976            builder.setIcon(0);
1977            builder.setTitle(getString(R.string.rename_folder_title));
1978            builder.setCancelable(true);
1979            builder.setOnCancelListener(new Dialog.OnCancelListener() {
1980                public void onCancel(DialogInterface dialog) {
1981                    cleanup();
1982                }
1983            });
1984            builder.setNegativeButton(getString(R.string.cancel_action),
1985                new Dialog.OnClickListener() {
1986                    public void onClick(DialogInterface dialog, int which) {
1987                        cleanup();
1988                    }
1989                }
1990            );
1991            builder.setPositiveButton(getString(R.string.rename_action),
1992                new Dialog.OnClickListener() {
1993                    public void onClick(DialogInterface dialog, int which) {
1994                        changeFolderName();
1995                    }
1996                }
1997            );
1998            builder.setView(layout);
1999
2000            final AlertDialog dialog = builder.create();
2001            dialog.setOnShowListener(new DialogInterface.OnShowListener() {
2002                public void onShow(DialogInterface dialog) {
2003                    mWaitingForResult = true;
2004                    mInput.requestFocus();
2005                    InputMethodManager inputManager = (InputMethodManager)
2006                            getSystemService(Context.INPUT_METHOD_SERVICE);
2007                    inputManager.showSoftInput(mInput, 0);
2008                }
2009            });
2010
2011            return dialog;
2012        }
2013
2014        private void changeFolderName() {
2015            final String name = mInput.getText().toString();
2016            if (!TextUtils.isEmpty(name)) {
2017                // Make sure we have the right folder info
2018                mFolderInfo = mFolders.get(mFolderInfo.id);
2019                mFolderInfo.title = name;
2020                LauncherModel.updateItemInDatabase(Launcher.this, mFolderInfo);
2021
2022                if (mWorkspaceLoading) {
2023                    lockAllApps();
2024                    mModel.startLoader(Launcher.this, false);
2025                } else {
2026                    final FolderIcon folderIcon = (FolderIcon)
2027                            mWorkspace.getViewForTag(mFolderInfo);
2028                    if (folderIcon != null) {
2029                        folderIcon.setText(name);
2030                        getWorkspace().requestLayout();
2031                    } else {
2032                        lockAllApps();
2033                        mWorkspaceLoading = true;
2034                        mModel.startLoader(Launcher.this, false);
2035                    }
2036                }
2037            }
2038            cleanup();
2039        }
2040
2041        private void cleanup() {
2042            dismissDialog(DIALOG_RENAME_FOLDER);
2043            mWaitingForResult = false;
2044            mFolderInfo = null;
2045        }
2046    }
2047
2048    // Now a part of LauncherModel.Callbacks. Used to reorder loading steps.
2049    public boolean isAllAppsVisible() {
2050        return (mAllAppsGrid != null) ? mAllAppsGrid.isVisible() : false;
2051    }
2052
2053    // AllAppsView.Watcher
2054    public void zoomed(float zoom) {
2055        // In XLarge view, we zoom down the workspace below all apps so it's still visible
2056        if (zoom == 1.0f && !LauncherApplication.isScreenXLarge()) {
2057            mWorkspace.setVisibility(View.GONE);
2058        }
2059    }
2060
2061    void showAllApps(boolean animated) {
2062        boolean unshrinkWorkspace = false;
2063        hideCustomizationDrawer(unshrinkWorkspace);
2064
2065        if (LauncherApplication.isScreenXLarge()) {
2066            mWorkspace.shrinkToBottom(animated);
2067        }
2068        if (LauncherApplication.isScreenXLarge() && animated) {
2069            final View allApps = (View)mAllAppsGrid;
2070
2071            final Resources res = getResources();
2072            final int duration = res.getInteger(R.integer.config_allAppsZoomInTime);
2073            final float scale = (float) res.getInteger(R.integer.config_allAppsZoomScaleFactor);
2074            final int height = allApps.getHeight();
2075
2076            // All apps should appear right at the end of the workspace shrink animation
2077            final int startDelay = res.getInteger(R.integer.config_workspaceShrinkTime) - duration;
2078
2079            Interpolator interp = new DecelerateInterpolator(2.0f);
2080
2081            allApps.setPivotX(allApps.getWidth() / 2.0f);
2082            allApps.setPivotY(height);
2083
2084            Animator scaleXAnim = new PropertyAnimator(duration, allApps, "scaleX", scale, 1.0f);
2085            scaleXAnim.setInterpolator(interp);
2086            scaleXAnim.addListener(new AnimatableListenerAdapter() {
2087                public void onAnimationStart(Animatable animation) {
2088                    // Not really a zoom -- this just makes the view visible
2089                    mAllAppsGrid.zoom(1.0f, false);
2090                }
2091            });
2092
2093            Animator scaleYAnim = new PropertyAnimator(duration, allApps, "scaleY", scale, 1.0f);
2094            scaleYAnim.setInterpolator(interp);
2095
2096            // Translate down by 20% of the total height
2097            float oldY = (-allApps.getHeight() * 0.2f);
2098            Animator yAnim = new PropertyAnimator(duration, allApps, "y", oldY, 0.0f);
2099            yAnim.setInterpolator(interp);
2100
2101            Sequencer s = new Sequencer();
2102            s.playTogether(scaleXAnim, scaleYAnim, yAnim);
2103            s.play(scaleXAnim).after(startDelay);
2104            s.start();
2105        } else {
2106            mAllAppsGrid.zoom(1.0f, animated);
2107        }
2108
2109        ((View) mAllAppsGrid).setFocusable(true);
2110        ((View) mAllAppsGrid).requestFocus();
2111
2112        // TODO: fade these two too
2113        mDeleteZone.setVisibility(View.GONE);
2114    }
2115
2116    /**
2117     * Things to test when changing this code.
2118     *   - Home from workspace
2119     *          - from center screen
2120     *          - from other screens
2121     *   - Home from all apps
2122     *          - from center screen
2123     *          - from other screens
2124     *   - Back from all apps
2125     *          - from center screen
2126     *          - from other screens
2127     *   - Launch app from workspace and quit
2128     *          - with back
2129     *          - with home
2130     *   - Launch app from all apps and quit
2131     *          - with back
2132     *          - with home
2133     *   - Go to a screen that's not the default, then all
2134     *     apps, and launch and app, and go back
2135     *          - with back
2136     *          -with home
2137     *   - On workspace, long press power and go back
2138     *          - with back
2139     *          - with home
2140     *   - On all apps, long press power and go back
2141     *          - with back
2142     *          - with home
2143     *   - On workspace, power off
2144     *   - On all apps, power off
2145     *   - Launch an app and turn off the screen while in that app
2146     *          - Go back with home key
2147     *          - Go back with back key  TODO: make this not go to workspace
2148     *          - From all apps
2149     *          - From workspace
2150     *   - Enter and exit car mode (becuase it causes an extra configuration changed)
2151     *          - From all apps
2152     *          - From the center workspace
2153     *          - From another workspace
2154     */
2155    void closeAllApps(boolean animated) {
2156        if (mAllAppsGrid.isVisible()) {
2157            mWorkspace.setVisibility(View.VISIBLE);
2158            if (LauncherApplication.isScreenXLarge() && animated) {
2159                Resources res = getResources();
2160                int duration = res.getInteger(R.integer.config_allAppsZoomOutTime);
2161                float scaleFactor = (float) res.getInteger(R.integer.config_allAppsZoomScaleFactor);
2162                View allApps = (View) mAllAppsGrid;
2163
2164                allApps.setPivotX(allApps.getWidth() / 2.0f);
2165                allApps.setPivotY(allApps.getHeight());
2166
2167                // Translate up by 20% of the total height
2168                float newY = allApps.getY() - allApps.getHeight() * 0.2f;
2169
2170                Sequencer seq = new Sequencer();
2171                seq.playTogether(
2172                        new PropertyAnimator(duration, allApps, "scaleX", scaleFactor),
2173                        new PropertyAnimator(duration, allApps, "scaleY", scaleFactor),
2174                        new PropertyAnimator(duration, allApps, "y", newY));
2175                seq.addListener(new AnimatableListenerAdapter() {
2176                    public void onAnimationEnd(Animatable animation) {
2177                        mAllAppsGrid.zoom(0.0f, false);
2178                    }
2179                });
2180                // Start the AllApps animation at the same time as the workspace unshrink
2181                seq.start();
2182                mWorkspace.unshrink();
2183            } else {
2184                mAllAppsGrid.zoom(0.0f, animated);
2185            }
2186            ((View)mAllAppsGrid).setFocusable(false);
2187            mWorkspace.getChildAt(mWorkspace.getCurrentScreen()).requestFocus();
2188        }
2189    }
2190
2191    void lockAllApps() {
2192        // TODO
2193    }
2194
2195    void unlockAllApps() {
2196        // TODO
2197    }
2198
2199    private boolean isCustomizationDrawerVisible() {
2200        return mHomeCustomizationDrawer != null &&
2201                mHomeCustomizationDrawer.getVisibility() == View.VISIBLE;
2202    }
2203
2204    private void showCustomizationDrawer() {
2205        if (isAllAppsVisible()) {
2206            // TODO: Make a smoother transition here
2207            closeAllApps(false);
2208        }
2209        mHomeCustomizationDrawer.setVisibility(View.VISIBLE);
2210        mHomeCustomizationDrawer.startAnimation(
2211                AnimationUtils.loadAnimation(this, R.anim.home_customization_drawer_slide_up));
2212    }
2213
2214    void hideCustomizationDrawer() {
2215        hideCustomizationDrawer(true);
2216    }
2217
2218    void hideCustomizationDrawer(boolean unshrinkWorkspace) {
2219        if (isCustomizationDrawerVisible()) {
2220            Animation slideDownAnimation = AnimationUtils.loadAnimation(
2221                    this, R.anim.home_customization_drawer_slide_down);
2222            slideDownAnimation.setAnimationListener(new Animation.AnimationListener() {
2223                public void onAnimationEnd(Animation animation) {
2224                    mHomeCustomizationDrawer.setVisibility(View.GONE);
2225                }
2226                public void onAnimationRepeat(Animation animation) {}
2227                public void onAnimationStart(Animation animation) {}
2228            });
2229            mHomeCustomizationDrawer.startAnimation(slideDownAnimation);
2230            if (unshrinkWorkspace) {
2231                mWorkspace.unshrink();
2232            }
2233        }
2234    }
2235
2236    void onWorkspaceUnshrink() {
2237        if (isAllAppsVisible()) {
2238            closeAllApps(true);
2239        }
2240        if (isCustomizationDrawerVisible()) {
2241            hideCustomizationDrawer();
2242        }
2243    }
2244
2245    /**
2246     * Displays the shortcut creation dialog and launches, if necessary, the
2247     * appropriate activity.
2248     */
2249    private class CreateShortcut implements DialogInterface.OnClickListener,
2250            DialogInterface.OnCancelListener, DialogInterface.OnDismissListener,
2251            DialogInterface.OnShowListener {
2252
2253        private AddAdapter mAdapter;
2254
2255        Dialog createDialog() {
2256            mAdapter = new AddAdapter(Launcher.this);
2257
2258            final AlertDialog.Builder builder = new AlertDialog.Builder(Launcher.this);
2259            builder.setTitle(getString(R.string.menu_item_add_item));
2260            builder.setAdapter(mAdapter, this);
2261
2262            builder.setInverseBackgroundForced(true);
2263
2264            AlertDialog dialog = builder.create();
2265            dialog.setOnCancelListener(this);
2266            dialog.setOnDismissListener(this);
2267            dialog.setOnShowListener(this);
2268
2269            return dialog;
2270        }
2271
2272        public void onCancel(DialogInterface dialog) {
2273            mWaitingForResult = false;
2274            cleanup();
2275        }
2276
2277        public void onDismiss(DialogInterface dialog) {
2278        }
2279
2280        private void cleanup() {
2281            try {
2282                dismissDialog(DIALOG_CREATE_SHORTCUT);
2283            } catch (Exception e) {
2284                // An exception is thrown if the dialog is not visible, which is fine
2285            }
2286        }
2287
2288        /**
2289         * Handle the action clicked in the "Add to home" dialog.
2290         */
2291        public void onClick(DialogInterface dialog, int which) {
2292            Resources res = getResources();
2293            cleanup();
2294
2295            switch (which) {
2296                case AddAdapter.ITEM_SHORTCUT: {
2297                    pickShortcut();
2298                    break;
2299                }
2300
2301                case AddAdapter.ITEM_APPWIDGET: {
2302                    int appWidgetId = Launcher.this.mAppWidgetHost.allocateAppWidgetId();
2303
2304                    Intent pickIntent = new Intent(AppWidgetManager.ACTION_APPWIDGET_PICK);
2305                    pickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
2306                    // start the pick activity
2307                    startActivityForResult(pickIntent, REQUEST_PICK_APPWIDGET);
2308                    break;
2309                }
2310
2311                case AddAdapter.ITEM_LIVE_FOLDER: {
2312                    // Insert extra item to handle inserting folder
2313                    Bundle bundle = new Bundle();
2314
2315                    ArrayList<String> shortcutNames = new ArrayList<String>();
2316                    shortcutNames.add(res.getString(R.string.group_folder));
2317                    bundle.putStringArrayList(Intent.EXTRA_SHORTCUT_NAME, shortcutNames);
2318
2319                    ArrayList<ShortcutIconResource> shortcutIcons =
2320                            new ArrayList<ShortcutIconResource>();
2321                    shortcutIcons.add(ShortcutIconResource.fromContext(Launcher.this,
2322                            R.drawable.ic_launcher_folder));
2323                    bundle.putParcelableArrayList(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, shortcutIcons);
2324
2325                    Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
2326                    pickIntent.putExtra(Intent.EXTRA_INTENT,
2327                            new Intent(LiveFolders.ACTION_CREATE_LIVE_FOLDER));
2328                    pickIntent.putExtra(Intent.EXTRA_TITLE,
2329                            getText(R.string.title_select_live_folder));
2330                    pickIntent.putExtras(bundle);
2331
2332                    startActivityForResult(pickIntent, REQUEST_PICK_LIVE_FOLDER);
2333                    break;
2334                }
2335
2336                case AddAdapter.ITEM_WALLPAPER: {
2337                    startWallpaper();
2338                    break;
2339                }
2340            }
2341        }
2342
2343        public void onShow(DialogInterface dialog) {
2344            mWaitingForResult = true;
2345        }
2346    }
2347
2348    /**
2349     * Receives notifications when applications are added/removed.
2350     */
2351    private class CloseSystemDialogsIntentReceiver extends BroadcastReceiver {
2352        @Override
2353        public void onReceive(Context context, Intent intent) {
2354            closeSystemDialogs();
2355            String reason = intent.getStringExtra("reason");
2356            if (!"homekey".equals(reason)) {
2357                boolean animate = true;
2358                if (mPaused || "lock".equals(reason)) {
2359                    animate = false;
2360                }
2361                closeAllApps(animate);
2362            }
2363        }
2364    }
2365
2366    /**
2367     * Receives notifications whenever the appwidgets are reset.
2368     */
2369    private class AppWidgetResetObserver extends ContentObserver {
2370        public AppWidgetResetObserver() {
2371            super(new Handler());
2372        }
2373
2374        @Override
2375        public void onChange(boolean selfChange) {
2376            onAppWidgetReset();
2377        }
2378    }
2379
2380    /**
2381     * Implementation of the method from LauncherModel.Callbacks.
2382     */
2383    public int getCurrentWorkspaceScreen() {
2384        if (mWorkspace != null) {
2385            return mWorkspace.getCurrentScreen();
2386        } else {
2387            return SCREEN_COUNT / 2;
2388        }
2389    }
2390
2391    /**
2392     * Refreshes the shortcuts shown on the workspace.
2393     *
2394     * Implementation of the method from LauncherModel.Callbacks.
2395     */
2396    public void startBinding() {
2397        final Workspace workspace = mWorkspace;
2398        int count = workspace.getChildCount();
2399        for (int i = 0; i < count; i++) {
2400            // Use removeAllViewsInLayout() to avoid an extra requestLayout() and invalidate().
2401            ((ViewGroup) workspace.getChildAt(i)).removeAllViewsInLayout();
2402        }
2403
2404        if (DEBUG_USER_INTERFACE) {
2405            android.widget.Button finishButton = new android.widget.Button(this);
2406            finishButton.setText("Finish");
2407            workspace.addInScreen(finishButton, 1, 0, 0, 1, 1);
2408
2409            finishButton.setOnClickListener(new android.widget.Button.OnClickListener() {
2410                public void onClick(View v) {
2411                    finish();
2412                }
2413            });
2414        }
2415    }
2416
2417    /**
2418     * Bind the items start-end from the list.
2419     *
2420     * Implementation of the method from LauncherModel.Callbacks.
2421     */
2422    public void bindItems(ArrayList<ItemInfo> shortcuts, int start, int end) {
2423
2424        final Workspace workspace = mWorkspace;
2425
2426        for (int i=start; i<end; i++) {
2427            final ItemInfo item = shortcuts.get(i);
2428            mDesktopItems.add(item);
2429            switch (item.itemType) {
2430                case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
2431                case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
2432                    final View shortcut = createShortcut((ShortcutInfo)item);
2433                    workspace.addInScreen(shortcut, item.screen, item.cellX, item.cellY, 1, 1,
2434                            false);
2435                    break;
2436                case LauncherSettings.Favorites.ITEM_TYPE_USER_FOLDER:
2437                    final FolderIcon newFolder = FolderIcon.fromXml(R.layout.folder_icon, this,
2438                            (ViewGroup) workspace.getChildAt(workspace.getCurrentScreen()),
2439                            (UserFolderInfo) item);
2440                    workspace.addInScreen(newFolder, item.screen, item.cellX, item.cellY, 1, 1,
2441                            false);
2442                    break;
2443                case LauncherSettings.Favorites.ITEM_TYPE_LIVE_FOLDER:
2444                    final FolderIcon newLiveFolder = LiveFolderIcon.fromXml(
2445                            R.layout.live_folder_icon, this,
2446                            (ViewGroup) workspace.getChildAt(workspace.getCurrentScreen()),
2447                            (LiveFolderInfo) item);
2448                    workspace.addInScreen(newLiveFolder, item.screen, item.cellX, item.cellY, 1, 1,
2449                            false);
2450                    break;
2451            }
2452        }
2453
2454        workspace.requestLayout();
2455    }
2456
2457    /**
2458     * Implementation of the method from LauncherModel.Callbacks.
2459     */
2460    public void bindFolders(HashMap<Long, FolderInfo> folders) {
2461        mFolders.clear();
2462        mFolders.putAll(folders);
2463    }
2464
2465    /**
2466     * Add the views for a widget to the workspace.
2467     *
2468     * Implementation of the method from LauncherModel.Callbacks.
2469     */
2470    public void bindAppWidget(LauncherAppWidgetInfo item) {
2471        final long start = DEBUG_WIDGETS ? SystemClock.uptimeMillis() : 0;
2472        if (DEBUG_WIDGETS) {
2473            Log.d(TAG, "bindAppWidget: " + item);
2474        }
2475        final Workspace workspace = mWorkspace;
2476
2477        final int appWidgetId = item.appWidgetId;
2478        final AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
2479        if (DEBUG_WIDGETS) {
2480            Log.d(TAG, "bindAppWidget: id=" + item.appWidgetId + " belongs to component " + appWidgetInfo.provider);
2481        }
2482
2483        item.hostView = mAppWidgetHost.createView(this, appWidgetId, appWidgetInfo);
2484
2485        item.hostView.setAppWidget(appWidgetId, appWidgetInfo);
2486        item.hostView.setTag(item);
2487
2488        workspace.addInScreen(item.hostView, item.screen, item.cellX,
2489                item.cellY, item.spanX, item.spanY, false);
2490
2491        workspace.requestLayout();
2492
2493        mDesktopItems.add(item);
2494
2495        if (DEBUG_WIDGETS) {
2496            Log.d(TAG, "bound widget id="+item.appWidgetId+" in "
2497                    + (SystemClock.uptimeMillis()-start) + "ms");
2498        }
2499    }
2500
2501    /**
2502     * Callback saying that there aren't any more items to bind.
2503     *
2504     * Implementation of the method from LauncherModel.Callbacks.
2505     */
2506    public void finishBindingItems() {
2507        if (mSavedState != null) {
2508            if (!mWorkspace.hasFocus()) {
2509                mWorkspace.getChildAt(mWorkspace.getCurrentScreen()).requestFocus();
2510            }
2511
2512            final long[] userFolders = mSavedState.getLongArray(RUNTIME_STATE_USER_FOLDERS);
2513            if (userFolders != null) {
2514                for (long folderId : userFolders) {
2515                    final FolderInfo info = mFolders.get(folderId);
2516                    if (info != null) {
2517                        openFolder(info);
2518                    }
2519                }
2520                final Folder openFolder = mWorkspace.getOpenFolder();
2521                if (openFolder != null) {
2522                    openFolder.requestFocus();
2523                }
2524            }
2525
2526            mSavedState = null;
2527        }
2528
2529        if (mSavedInstanceState != null) {
2530            super.onRestoreInstanceState(mSavedInstanceState);
2531            mSavedInstanceState = null;
2532        }
2533
2534        mWorkspaceLoading = false;
2535    }
2536
2537    /**
2538     * Add the icons for all apps.
2539     *
2540     * Implementation of the method from LauncherModel.Callbacks.
2541     */
2542    public void bindAllApplications(ArrayList<ApplicationInfo> apps) {
2543        mAllAppsGrid.setApps(apps);
2544    }
2545
2546    /**
2547     * A package was installed.
2548     *
2549     * Implementation of the method from LauncherModel.Callbacks.
2550     */
2551    public void bindAppsAdded(ArrayList<ApplicationInfo> apps) {
2552        removeDialog(DIALOG_CREATE_SHORTCUT);
2553        mAllAppsGrid.addApps(apps);
2554    }
2555
2556    /**
2557     * A package was updated.
2558     *
2559     * Implementation of the method from LauncherModel.Callbacks.
2560     */
2561    public void bindAppsUpdated(ArrayList<ApplicationInfo> apps) {
2562        removeDialog(DIALOG_CREATE_SHORTCUT);
2563        mWorkspace.updateShortcuts(apps);
2564        mAllAppsGrid.updateApps(apps);
2565    }
2566
2567    /**
2568     * A package was uninstalled.
2569     *
2570     * Implementation of the method from LauncherModel.Callbacks.
2571     */
2572    public void bindAppsRemoved(ArrayList<ApplicationInfo> apps, boolean permanent) {
2573        removeDialog(DIALOG_CREATE_SHORTCUT);
2574        if (permanent) {
2575            mWorkspace.removeItems(apps);
2576        }
2577        mAllAppsGrid.removeApps(apps);
2578    }
2579
2580    /**
2581     * Prints out out state for debugging.
2582     */
2583    public void dumpState() {
2584        Log.d(TAG, "BEGIN launcher2 dump state for launcher " + this);
2585        Log.d(TAG, "mSavedState=" + mSavedState);
2586        Log.d(TAG, "mWorkspaceLoading=" + mWorkspaceLoading);
2587        Log.d(TAG, "mRestoring=" + mRestoring);
2588        Log.d(TAG, "mWaitingForResult=" + mWaitingForResult);
2589        Log.d(TAG, "mSavedInstanceState=" + mSavedInstanceState);
2590        Log.d(TAG, "mDesktopItems.size=" + mDesktopItems.size());
2591        Log.d(TAG, "mFolders.size=" + mFolders.size());
2592        mModel.dumpState();
2593        mAllAppsGrid.dumpState();
2594        Log.d(TAG, "END launcher2 dump state");
2595    }
2596}
2597