Launcher.java revision 11148e516524754e211e1a1e5e79d19b7d1a42a7 
1
2/*
3 * Copyright (C) 2008 The Android Open Source Project
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 *      http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18package com.android.launcher2;
19
20import com.android.common.Search;
21import com.android.launcher.R;
22import com.android.launcher2.CustomizePagedView.CustomizationType;
23import com.android.launcher2.Workspace.ShrinkState;
24
25import android.animation.Animator;
26import android.animation.AnimatorListenerAdapter;
27import android.animation.AnimatorSet;
28import android.animation.ObjectAnimator;
29import android.animation.PropertyValuesHolder;
30import android.animation.ValueAnimator;
31import android.animation.ValueAnimator.AnimatorUpdateListener;
32import android.app.Activity;
33import android.app.AlertDialog;
34import android.app.Dialog;
35import android.app.SearchManager;
36import android.app.StatusBarManager;
37import android.appwidget.AppWidgetManager;
38import android.appwidget.AppWidgetProviderInfo;
39import android.content.ActivityNotFoundException;
40import android.content.BroadcastReceiver;
41import android.content.ClipData;
42import android.content.ClipDescription;
43import android.content.ComponentName;
44import android.content.ContentResolver;
45import android.content.Context;
46import android.content.DialogInterface;
47import android.content.Intent;
48import android.content.IntentFilter;
49import android.content.Intent.ShortcutIconResource;
50import android.content.pm.ActivityInfo;
51import android.content.pm.PackageManager;
52import android.content.pm.ResolveInfo;
53import android.content.pm.PackageManager.NameNotFoundException;
54import android.content.res.Configuration;
55import android.content.res.Resources;
56import android.content.res.TypedArray;
57import android.database.ContentObserver;
58import android.graphics.Bitmap;
59import android.graphics.Canvas;
60import android.graphics.Rect;
61import android.graphics.drawable.ColorDrawable;
62import android.graphics.drawable.Drawable;
63import android.net.Uri;
64import android.os.AsyncTask;
65import android.os.Bundle;
66import android.os.Environment;
67import android.os.Handler;
68import android.os.Message;
69import android.os.Parcelable;
70import android.os.SystemClock;
71import android.os.SystemProperties;
72import android.provider.LiveFolders;
73import android.provider.Settings;
74import android.speech.RecognizerIntent;
75import android.text.Selection;
76import android.text.SpannableStringBuilder;
77import android.text.TextUtils;
78import android.text.method.TextKeyListener;
79import android.util.Log;
80import android.view.Display;
81import android.view.HapticFeedbackConstants;
82import android.view.KeyEvent;
83import android.view.LayoutInflater;
84import android.view.Menu;
85import android.view.MenuItem;
86import android.view.MotionEvent;
87import android.view.Surface;
88import android.view.View;
89import android.view.ViewGroup;
90import android.view.WindowManager;
91import android.view.View.OnLongClickListener;
92import android.view.accessibility.AccessibilityEvent;
93import android.view.animation.DecelerateInterpolator;
94import android.view.inputmethod.InputMethodManager;
95import android.widget.Advanceable;
96import android.widget.EditText;
97import android.widget.ImageView;
98import android.widget.LinearLayout;
99import android.widget.PopupWindow;
100import android.widget.TabHost;
101import android.widget.TabWidget;
102import android.widget.TextView;
103import android.widget.Toast;
104import android.widget.TabHost.OnTabChangeListener;
105import android.widget.TabHost.TabContentFactory;
106
107import java.io.DataInputStream;
108import java.io.DataOutputStream;
109import java.io.FileNotFoundException;
110import java.io.IOException;
111import java.util.ArrayList;
112import java.util.HashMap;
113import java.util.List;
114
115
116/**
117 * Default launcher application.
118 */
119public final class Launcher extends Activity
120        implements View.OnClickListener, OnLongClickListener, LauncherModel.Callbacks,
121                   AllAppsView.Watcher, View.OnTouchListener {
122    static final String TAG = "Launcher";
123    static final boolean LOGD = false;
124
125    static final boolean PROFILE_STARTUP = false;
126    static final boolean DEBUG_WIDGETS = false;
127    static final boolean DEBUG_USER_INTERFACE = false;
128
129    private static final int MENU_GROUP_ADD = 1;
130    private static final int MENU_GROUP_WALLPAPER = MENU_GROUP_ADD + 1;
131
132    private static final int MENU_ADD = Menu.FIRST + 1;
133    private static final int MENU_MANAGE_APPS = MENU_ADD + 1;
134    private static final int MENU_WALLPAPER_SETTINGS = MENU_MANAGE_APPS + 1;
135    private static final int MENU_SEARCH = MENU_WALLPAPER_SETTINGS + 1;
136    private static final int MENU_NOTIFICATIONS = MENU_SEARCH + 1;
137    private static final int MENU_SETTINGS = MENU_NOTIFICATIONS + 1;
138
139    private static final int REQUEST_CREATE_SHORTCUT = 1;
140    private static final int REQUEST_CREATE_LIVE_FOLDER = 4;
141    private static final int REQUEST_CREATE_APPWIDGET = 5;
142    private static final int REQUEST_PICK_APPLICATION = 6;
143    private static final int REQUEST_PICK_SHORTCUT = 7;
144    private static final int REQUEST_PICK_LIVE_FOLDER = 8;
145    private static final int REQUEST_PICK_APPWIDGET = 9;
146    private static final int REQUEST_PICK_WALLPAPER = 10;
147
148    static final String EXTRA_SHORTCUT_DUPLICATE = "duplicate";
149
150    static final int SCREEN_COUNT = 5;
151    static final int DEFAULT_SCREEN = 2;
152
153    static final int DIALOG_CREATE_SHORTCUT = 1;
154    static final int DIALOG_RENAME_FOLDER = 2;
155
156    private static final String PREFERENCES = "launcher.preferences";
157
158    // Type: int
159    private static final String RUNTIME_STATE_CURRENT_SCREEN = "launcher.current_screen";
160    // Type: int
161    private static final String RUNTIME_STATE = "launcher.state";
162    // Type: long
163    private static final String RUNTIME_STATE_USER_FOLDERS = "launcher.user_folder";
164    // Type: int
165    private static final String RUNTIME_STATE_PENDING_ADD_SCREEN = "launcher.add_screen";
166    // Type: int
167    private static final String RUNTIME_STATE_PENDING_ADD_CELL_X = "launcher.add_cellX";
168    // Type: int
169    private static final String RUNTIME_STATE_PENDING_ADD_CELL_Y = "launcher.add_cellY";
170    // Type: boolean
171    private static final String RUNTIME_STATE_PENDING_FOLDER_RENAME = "launcher.rename_folder";
172    // Type: long
173    private static final String RUNTIME_STATE_PENDING_FOLDER_RENAME_ID = "launcher.rename_folder_id";
174
175    // tags for the customization tabs
176    private static final String WIDGETS_TAG = "widgets";
177    private static final String APPLICATIONS_TAG = "applications";
178    private static final String SHORTCUTS_TAG = "shortcuts";
179    private static final String WALLPAPERS_TAG = "wallpapers";
180
181    private static final String TOOLBAR_ICON_METADATA_NAME = "com.android.launcher.toolbar_icon";
182
183    /** The different states that Launcher can be in. */
184    private enum State { WORKSPACE, ALL_APPS, CUSTOMIZE, OVERVIEW,
185        CUSTOMIZE_SPRING_LOADED, ALL_APPS_SPRING_LOADED };
186    private State mState = State.WORKSPACE;
187    private AnimatorSet mStateAnimation;
188
189    static final int APPWIDGET_HOST_ID = 1024;
190
191    private static final Object sLock = new Object();
192    private static int sScreen = DEFAULT_SCREEN;
193
194    private final BroadcastReceiver mCloseSystemDialogsReceiver
195            = new CloseSystemDialogsIntentReceiver();
196    private final ContentObserver mWidgetObserver = new AppWidgetResetObserver();
197
198    private LayoutInflater mInflater;
199
200    private DragController mDragController;
201    private Workspace mWorkspace;
202
203    private AppWidgetManager mAppWidgetManager;
204    private LauncherAppWidgetHost mAppWidgetHost;
205
206    private int mAddScreen = -1;
207    private int mAddIntersectCellX = -1;
208    private int mAddIntersectCellY = -1;
209    private int[] mAddDropPosition;
210    private int[] mTmpAddItemCellCoordinates = new int[2];
211
212    private FolderInfo mFolderInfo;
213
214    private DeleteZone mDeleteZone;
215    private HandleView mHandleView;
216    private AllAppsView mAllAppsGrid;
217    private TabHost mHomeCustomizationDrawer;
218    private boolean mAutoAdvanceRunning = false;
219
220    private AllAppsPagedView mAllAppsPagedView = null;
221    private CustomizePagedView mCustomizePagedView = null;
222
223    private Bundle mSavedState;
224
225    private SpannableStringBuilder mDefaultKeySsb = null;
226
227    private boolean mWorkspaceLoading = true;
228
229    private boolean mPaused = true;
230    private boolean mRestoring;
231    private boolean mWaitingForResult;
232    private boolean mOnResumeNeedsLoad;
233
234    private Bundle mSavedInstanceState;
235
236    private LauncherModel mModel;
237    private IconCache mIconCache;
238    private boolean mUserPresent = true;
239    private boolean mVisible = false;
240    private boolean mAttached = false;
241
242    private static LocaleConfiguration sLocaleConfiguration = null;
243
244    private ArrayList<ItemInfo> mDesktopItems = new ArrayList<ItemInfo>();
245
246    private static HashMap<Long, FolderInfo> sFolders = new HashMap<Long, FolderInfo>();
247
248    private ImageView mPreviousView;
249    private ImageView mNextView;
250
251    // Hotseats (quick-launch icons next to AllApps)
252    private String[] mHotseatConfig = null;
253    private Intent[] mHotseats = null;
254    private Drawable[] mHotseatIcons = null;
255    private CharSequence[] mHotseatLabels = null;
256
257    private Intent mAppMarketIntent = null;
258
259    // Related to the auto-advancing of widgets
260    private final int ADVANCE_MSG = 1;
261    private final int mAdvanceInterval = 20000;
262    private final int mAdvanceStagger = 250;
263    private long mAutoAdvanceSentTime;
264    private long mAutoAdvanceTimeLeft = -1;
265    private HashMap<View, AppWidgetProviderInfo> mWidgetsToAdvance =
266        new HashMap<View, AppWidgetProviderInfo>();
267
268    // Determines how long to wait after a rotation before restoring the screen orientation to
269    // match the sensor state.
270    private final int mRestoreScreenOrientationDelay = 500;
271
272    // External icons saved in case of resource changes, orientation, etc.
273    private static Drawable.ConstantState sGlobalSearchIcon;
274    private static Drawable.ConstantState sVoiceSearchIcon;
275    private static Drawable.ConstantState sAppMarketIcon;
276
277    private CustomizationType getCustomizeFilterForTabTag(String tag) {
278        if (tag.equals(WIDGETS_TAG)) {
279            return CustomizationType.WidgetCustomization;
280        } else if (tag.equals(APPLICATIONS_TAG)) {
281            return CustomizationType.ApplicationCustomization;
282        } else if (tag.equals(WALLPAPERS_TAG)) {
283            return CustomizePagedView.CustomizationType.WallpaperCustomization;
284        } else if (tag.equals(SHORTCUTS_TAG)) {
285            return CustomizePagedView.CustomizationType.ShortcutCustomization;
286        }
287        return CustomizationType.WidgetCustomization;
288    }
289
290    @Override
291    protected void onCreate(Bundle savedInstanceState) {
292        super.onCreate(savedInstanceState);
293
294        if (LauncherApplication.isInPlaceRotationEnabled()) {
295            // hide the status bar (temporary until we get the status bar design figured out)
296            getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
297            this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR);
298        }
299
300        LauncherApplication app = ((LauncherApplication)getApplication());
301        mModel = app.setLauncher(this);
302        mIconCache = app.getIconCache();
303        mDragController = new DragController(this);
304        mInflater = getLayoutInflater();
305
306        mAppWidgetManager = AppWidgetManager.getInstance(this);
307        mAppWidgetHost = new LauncherAppWidgetHost(this, APPWIDGET_HOST_ID);
308        mAppWidgetHost.startListening();
309
310        if (PROFILE_STARTUP) {
311            android.os.Debug.startMethodTracing(
312                    Environment.getExternalStorageDirectory() + "/launcher");
313        }
314
315        loadHotseats();
316        checkForLocaleChange();
317        setContentView(R.layout.launcher);
318        mHomeCustomizationDrawer = (TabHost) findViewById(R.id.customization_drawer);
319        if (mHomeCustomizationDrawer != null) {
320            mHomeCustomizationDrawer.setup();
321
322            // share the same customization workspace across all the tabs
323            mCustomizePagedView = (CustomizePagedView) mInflater.inflate(
324                    R.layout.customization_drawer, mHomeCustomizationDrawer, false);
325            TabContentFactory contentFactory = new TabContentFactory() {
326                public View createTabContent(String tag) {
327                    return mCustomizePagedView;
328                }
329            };
330
331
332            TextView tabView;
333            TabWidget tabWidget = (TabWidget)
334                    mHomeCustomizationDrawer.findViewById(com.android.internal.R.id.tabs);
335
336            tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false);
337            tabView.setText(getString(R.string.widgets_tab_label));
338            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec(WIDGETS_TAG)
339                    .setIndicator(tabView).setContent(contentFactory));
340            tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false);
341            tabView.setText(getString(R.string.applications_tab_label));
342            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec(APPLICATIONS_TAG)
343                    .setIndicator(tabView).setContent(contentFactory));
344            tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false);
345            tabView.setText(getString(R.string.wallpapers_tab_label));
346            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec(WALLPAPERS_TAG)
347                    .setIndicator(tabView).setContent(contentFactory));
348            tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false);
349            tabView.setText(getString(R.string.shortcuts_tab_label));
350            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec(SHORTCUTS_TAG)
351                    .setIndicator(tabView).setContent(contentFactory));
352            mHomeCustomizationDrawer.setOnTabChangedListener(new OnTabChangeListener() {
353                public void onTabChanged(String tabId) {
354                    final CustomizePagedView.CustomizationType newType =
355                        getCustomizeFilterForTabTag(tabId);
356                    if (newType != mCustomizePagedView.getCustomizationFilter()) {
357                        // animate the changing of the tab content by fading pages in and out
358                        final Resources res = getResources();
359                        final int duration = res.getInteger(R.integer.config_tabTransitionTime);
360                        final float alpha = mCustomizePagedView.getAlpha();
361                        ValueAnimator alphaAnim = ObjectAnimator.ofFloat(mCustomizePagedView,
362                                "alpha", alpha, 0.0f);
363                        alphaAnim.setDuration(duration);
364                        alphaAnim.addListener(new AnimatorListenerAdapter() {
365                            @Override
366                            public void onAnimationEnd(Animator animation) {
367                                mCustomizePagedView.setCustomizationFilter(newType);
368
369                                final float alpha = mCustomizePagedView.getAlpha();
370                                ValueAnimator alphaAnim = ObjectAnimator.ofFloat(
371                                        mCustomizePagedView, "alpha", alpha, 1.0f);
372                                alphaAnim.setDuration(duration);
373                                alphaAnim.start();
374                            }
375                        });
376                        alphaAnim.start();
377                    }
378                }
379            });
380        }
381        setupViews();
382
383        registerContentObservers();
384
385        lockAllApps();
386
387        mSavedState = savedInstanceState;
388        restoreState(mSavedState);
389
390        // Update customization drawer _after_ restoring the states
391        if (mCustomizePagedView != null) {
392            mCustomizePagedView.update();
393        }
394
395        if (PROFILE_STARTUP) {
396            android.os.Debug.stopMethodTracing();
397        }
398
399        if (!mRestoring) {
400            mModel.startLoader(this, true);
401        }
402
403        // For handling default keys
404        mDefaultKeySsb = new SpannableStringBuilder();
405        Selection.setSelection(mDefaultKeySsb, 0);
406
407        IntentFilter filter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
408        registerReceiver(mCloseSystemDialogsReceiver, filter);
409
410        // If we have a saved version of these external icons, we load them up immediately
411        if (LauncherApplication.isScreenXLarge()) {
412            if (sGlobalSearchIcon != null) {
413                updateGlobalSearchIcon(sGlobalSearchIcon);
414            }
415            if (sVoiceSearchIcon != null) {
416                updateVoiceSearchIcon(sVoiceSearchIcon);
417            }
418            if (sAppMarketIcon != null) {
419                updateAppMarketIcon(sAppMarketIcon);
420            }
421        }
422    }
423
424    @Override
425    public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
426        super.dispatchPopulateAccessibilityEvent(event);
427
428        // we want to take over text population so it is context dependent
429        event.getText().clear();
430        if (mState == State.ALL_APPS) {
431            event.getText().add(getString(R.string.all_apps_button_label));
432        } else if (mState == State.WORKSPACE) {
433            event.getText().add(getString(R.string.all_apps_home_button_label));
434        }
435
436        return true;
437    }
438
439    private void checkForLocaleChange() {
440        if (sLocaleConfiguration == null) {
441            new AsyncTask<Void, Void, LocaleConfiguration>() {
442                @Override
443                protected LocaleConfiguration doInBackground(Void... unused) {
444                    LocaleConfiguration localeConfiguration = new LocaleConfiguration();
445                    readConfiguration(Launcher.this, localeConfiguration);
446                    return localeConfiguration;
447                }
448
449                @Override
450                protected void onPostExecute(LocaleConfiguration result) {
451                    sLocaleConfiguration = result;
452                    checkForLocaleChange();  // recursive, but now with a locale configuration
453                }
454            }.execute();
455            return;
456        }
457
458        final Configuration configuration = getResources().getConfiguration();
459
460        final String previousLocale = sLocaleConfiguration.locale;
461        final String locale = configuration.locale.toString();
462
463        final int previousMcc = sLocaleConfiguration.mcc;
464        final int mcc = configuration.mcc;
465
466        final int previousMnc = sLocaleConfiguration.mnc;
467        final int mnc = configuration.mnc;
468
469        boolean localeChanged = !locale.equals(previousLocale) || mcc != previousMcc || mnc != previousMnc;
470
471        if (localeChanged) {
472            sLocaleConfiguration.locale = locale;
473            sLocaleConfiguration.mcc = mcc;
474            sLocaleConfiguration.mnc = mnc;
475
476            mIconCache.flush();
477            loadHotseats();
478
479            final LocaleConfiguration localeConfiguration = sLocaleConfiguration;
480            new Thread("WriteLocaleConfiguration") {
481                @Override
482                public void run() {
483                    writeConfiguration(Launcher.this, localeConfiguration);
484                }
485            }.start();
486        }
487    }
488
489    private static class LocaleConfiguration {
490        public String locale;
491        public int mcc = -1;
492        public int mnc = -1;
493    }
494
495    private static void readConfiguration(Context context, LocaleConfiguration configuration) {
496        DataInputStream in = null;
497        try {
498            in = new DataInputStream(context.openFileInput(PREFERENCES));
499            configuration.locale = in.readUTF();
500            configuration.mcc = in.readInt();
501            configuration.mnc = in.readInt();
502        } catch (FileNotFoundException e) {
503            // Ignore
504        } catch (IOException e) {
505            // Ignore
506        } finally {
507            if (in != null) {
508                try {
509                    in.close();
510                } catch (IOException e) {
511                    // Ignore
512                }
513            }
514        }
515    }
516
517    private static void writeConfiguration(Context context, LocaleConfiguration configuration) {
518        DataOutputStream out = null;
519        try {
520            out = new DataOutputStream(context.openFileOutput(PREFERENCES, MODE_PRIVATE));
521            out.writeUTF(configuration.locale);
522            out.writeInt(configuration.mcc);
523            out.writeInt(configuration.mnc);
524            out.flush();
525        } catch (FileNotFoundException e) {
526            // Ignore
527        } catch (IOException e) {
528            //noinspection ResultOfMethodCallIgnored
529            context.getFileStreamPath(PREFERENCES).delete();
530        } finally {
531            if (out != null) {
532                try {
533                    out.close();
534                } catch (IOException e) {
535                    // Ignore
536                }
537            }
538        }
539    }
540
541    static int getScreen() {
542        synchronized (sLock) {
543            return sScreen;
544        }
545    }
546
547    static void setScreen(int screen) {
548        synchronized (sLock) {
549            sScreen = screen;
550        }
551    }
552
553    // Note: This doesn't do all the client-id magic that BrowserProvider does
554    // in Browser. (http://b/2425179)
555    private Uri getDefaultBrowserUri() {
556        String url = getString(R.string.default_browser_url);
557        if (url.indexOf("{CID}") != -1) {
558            url = url.replace("{CID}", "android-google");
559        }
560        return Uri.parse(url);
561    }
562
563    // Load the Intent templates from arrays.xml to populate the hotseats. For
564    // each Intent, if it resolves to a single app, use that as the launch
565    // intent & use that app's label as the contentDescription. Otherwise,
566    // retain the ResolveActivity so the user can pick an app.
567    private void loadHotseats() {
568        if (mHotseatConfig == null) {
569            mHotseatConfig = getResources().getStringArray(R.array.hotseats);
570            if (mHotseatConfig.length > 0) {
571                mHotseats = new Intent[mHotseatConfig.length];
572                mHotseatLabels = new CharSequence[mHotseatConfig.length];
573                mHotseatIcons = new Drawable[mHotseatConfig.length];
574            } else {
575                mHotseats = null;
576                mHotseatIcons = null;
577                mHotseatLabels = null;
578            }
579
580            TypedArray hotseatIconDrawables = getResources().obtainTypedArray(R.array.hotseat_icons);
581            for (int i=0; i<mHotseatConfig.length; i++) {
582                // load icon for this slot; currently unrelated to the actual activity
583                try {
584                    mHotseatIcons[i] = hotseatIconDrawables.getDrawable(i);
585                } catch (ArrayIndexOutOfBoundsException ex) {
586                    Log.w(TAG, "Missing hotseat_icons array item #" + i);
587                    mHotseatIcons[i] = null;
588                }
589            }
590            hotseatIconDrawables.recycle();
591        }
592
593        PackageManager pm = getPackageManager();
594        for (int i=0; i<mHotseatConfig.length; i++) {
595            Intent intent = null;
596            if (mHotseatConfig[i].equals("*BROWSER*")) {
597                // magic value meaning "launch user's default web browser"
598                // replace it with a generic web request so we can see if there is indeed a default
599                String defaultUri = getString(R.string.default_browser_url);
600                intent = new Intent(
601                        Intent.ACTION_VIEW,
602                        ((defaultUri != null)
603                            ? Uri.parse(defaultUri)
604                            : getDefaultBrowserUri())
605                    ).addCategory(Intent.CATEGORY_BROWSABLE);
606                // note: if the user launches this without a default set, she
607                // will always be taken to the default URL above; this is
608                // unavoidable as we must specify a valid URL in order for the
609                // chooser to appear, and once the user selects something, that
610                // URL is unavoidably sent to the chosen app.
611            } else {
612                try {
613                    intent = Intent.parseUri(mHotseatConfig[i], 0);
614                } catch (java.net.URISyntaxException ex) {
615                    Log.w(TAG, "Invalid hotseat intent: " + mHotseatConfig[i]);
616                    // bogus; leave intent=null
617                }
618            }
619
620            if (intent == null) {
621                mHotseats[i] = null;
622                mHotseatLabels[i] = getText(R.string.activity_not_found);
623                continue;
624            }
625
626            if (LOGD) {
627                Log.d(TAG, "loadHotseats: hotseat " + i
628                    + " initial intent=["
629                    + intent.toUri(Intent.URI_INTENT_SCHEME)
630                    + "]");
631            }
632
633            ResolveInfo bestMatch = pm.resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);
634            List<ResolveInfo> allMatches = pm.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
635            if (LOGD) {
636                Log.d(TAG, "Best match for intent: " + bestMatch);
637                Log.d(TAG, "All matches: ");
638                for (ResolveInfo ri : allMatches) {
639                    Log.d(TAG, "  --> " + ri);
640                }
641            }
642            // did this resolve to a single app, or the resolver?
643            if (allMatches.size() == 0 || bestMatch == null) {
644                // can't find any activity to handle this. let's leave the
645                // intent as-is and let Launcher show a toast when it fails
646                // to launch.
647                mHotseats[i] = intent;
648
649                // set accessibility text to "Not installed"
650                mHotseatLabels[i] = getText(R.string.activity_not_found);
651            } else {
652                boolean found = false;
653                for (ResolveInfo ri : allMatches) {
654                    if (bestMatch.activityInfo.name.equals(ri.activityInfo.name)
655                        && bestMatch.activityInfo.applicationInfo.packageName
656                            .equals(ri.activityInfo.applicationInfo.packageName)) {
657                        found = true;
658                        break;
659                    }
660                }
661
662                if (!found) {
663                    if (LOGD) Log.d(TAG, "Multiple options, no default yet");
664                    // the bestMatch is probably the ResolveActivity, meaning the
665                    // user has not yet selected a default
666                    // so: we'll keep the original intent for now
667                    mHotseats[i] = intent;
668
669                    // set the accessibility text to "Select shortcut"
670                    mHotseatLabels[i] = getText(R.string.title_select_shortcut);
671                } else {
672                    // we have an app!
673                    // now reconstruct the intent to launch it through the front
674                    // door
675                    ComponentName com = new ComponentName(
676                        bestMatch.activityInfo.applicationInfo.packageName,
677                        bestMatch.activityInfo.name);
678                    mHotseats[i] = new Intent(Intent.ACTION_MAIN).setComponent(com);
679
680                    // load the app label for accessibility
681                    mHotseatLabels[i] = bestMatch.activityInfo.loadLabel(pm);
682                }
683            }
684
685            if (LOGD) {
686                Log.d(TAG, "loadHotseats: hotseat " + i
687                    + " final intent=["
688                    + ((mHotseats[i] == null)
689                        ? "null"
690                        : mHotseats[i].toUri(Intent.URI_INTENT_SCHEME))
691                    + "] label=[" + mHotseatLabels[i]
692                    + "]"
693                    );
694            }
695        }
696    }
697
698    @Override
699    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
700        mWaitingForResult = false;
701
702        // The pattern used here is that a user PICKs a specific application,
703        // which, depending on the target, might need to CREATE the actual target.
704
705        // For example, the user would PICK_SHORTCUT for "Music playlist", and we
706        // launch over to the Music app to actually CREATE_SHORTCUT.
707
708        if (resultCode == RESULT_OK && mAddScreen != -1) {
709            switch (requestCode) {
710                case REQUEST_PICK_APPLICATION:
711                    completeAddApplication(
712                            this, data, mAddScreen, mAddIntersectCellX, mAddIntersectCellY);
713                    break;
714                case REQUEST_PICK_SHORTCUT:
715                    processShortcut(data);
716                    break;
717                case REQUEST_CREATE_SHORTCUT:
718                    completeAddShortcut(data, mAddScreen, mAddIntersectCellX, mAddIntersectCellY);
719                    break;
720                case REQUEST_PICK_LIVE_FOLDER:
721                    addLiveFolder(data);
722                    break;
723                case REQUEST_CREATE_LIVE_FOLDER:
724                    completeAddLiveFolder(data, mAddScreen, mAddIntersectCellX, mAddIntersectCellY);
725                    break;
726                case REQUEST_PICK_APPWIDGET:
727                    addAppWidgetFromPick(data);
728                    break;
729                case REQUEST_CREATE_APPWIDGET:
730                    int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
731                    completeAddAppWidget(appWidgetId, mAddScreen);
732                    break;
733                case REQUEST_PICK_WALLPAPER:
734                    // We just wanted the activity result here so we can clear mWaitingForResult
735                    break;
736            }
737        } else if ((requestCode == REQUEST_PICK_APPWIDGET ||
738                requestCode == REQUEST_CREATE_APPWIDGET) && resultCode == RESULT_CANCELED &&
739                data != null) {
740            // Clean up the appWidgetId if we canceled
741            int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
742            if (appWidgetId != -1) {
743                mAppWidgetHost.deleteAppWidgetId(appWidgetId);
744            }
745        }
746    }
747
748    @Override
749    protected void onResume() {
750        super.onResume();
751        mPaused = false;
752        if (mRestoring || mOnResumeNeedsLoad) {
753            mWorkspaceLoading = true;
754            mModel.startLoader(this, true);
755            mRestoring = false;
756            mOnResumeNeedsLoad = false;
757        }
758        // When we resume Launcher, a different Activity might be responsible for the app
759        // market intent, so refresh the icon
760        updateAppMarketIcon();
761    }
762
763    @Override
764    protected void onPause() {
765        super.onPause();
766        // Some launcher layouts don't have a previous and next view
767        if (mPreviousView != null) {
768            dismissPreview(mPreviousView);
769        }
770        if (mNextView != null) {
771            dismissPreview(mNextView);
772        }
773        mPaused = true;
774        mDragController.cancelDrag();
775    }
776
777    @Override
778    public Object onRetainNonConfigurationInstance() {
779        // Flag the loader to stop early before switching
780        mModel.stopLoader();
781        mAllAppsGrid.surrender();
782        return Boolean.TRUE;
783    }
784
785    // We can't hide the IME if it was forced open.  So don't bother
786    /*
787    @Override
788    public void onWindowFocusChanged(boolean hasFocus) {
789        super.onWindowFocusChanged(hasFocus);
790
791        if (hasFocus) {
792            final InputMethodManager inputManager = (InputMethodManager)
793                    getSystemService(Context.INPUT_METHOD_SERVICE);
794            WindowManager.LayoutParams lp = getWindow().getAttributes();
795            inputManager.hideSoftInputFromWindow(lp.token, 0, new android.os.ResultReceiver(new
796                        android.os.Handler()) {
797                        protected void onReceiveResult(int resultCode, Bundle resultData) {
798                            Log.d(TAG, "ResultReceiver got resultCode=" + resultCode);
799                        }
800                    });
801            Log.d(TAG, "called hideSoftInputFromWindow from onWindowFocusChanged");
802        }
803    }
804    */
805
806    private boolean acceptFilter() {
807        final InputMethodManager inputManager = (InputMethodManager)
808                getSystemService(Context.INPUT_METHOD_SERVICE);
809        return !inputManager.isFullscreenMode();
810    }
811
812    @Override
813    public boolean onKeyDown(int keyCode, KeyEvent event) {
814        boolean handled = super.onKeyDown(keyCode, event);
815        if (!handled && acceptFilter() && keyCode != KeyEvent.KEYCODE_ENTER) {
816            boolean gotKey = TextKeyListener.getInstance().onKeyDown(mWorkspace, mDefaultKeySsb,
817                    keyCode, event);
818            if (gotKey && mDefaultKeySsb != null && mDefaultKeySsb.length() > 0) {
819                // something usable has been typed - start a search
820                // the typed text will be retrieved and cleared by
821                // showSearchDialog()
822                // If there are multiple keystrokes before the search dialog takes focus,
823                // onSearchRequested() will be called for every keystroke,
824                // but it is idempotent, so it's fine.
825                return onSearchRequested();
826            }
827        }
828
829        // Eat the long press event so the keyboard doesn't come up.
830        if (keyCode == KeyEvent.KEYCODE_MENU && event.isLongPress()) {
831            return true;
832        }
833
834        return handled;
835    }
836
837    private String getTypedText() {
838        return mDefaultKeySsb.toString();
839    }
840
841    private void clearTypedText() {
842        mDefaultKeySsb.clear();
843        mDefaultKeySsb.clearSpans();
844        Selection.setSelection(mDefaultKeySsb, 0);
845    }
846
847    /**
848     * Given the integer (ordinal) value of a State enum instance, convert it to a variable of type
849     * State
850     */
851    private static State intToState(int stateOrdinal) {
852        State state = State.WORKSPACE;
853        final State[] stateValues = State.values();
854        for (int i = 0; i < stateValues.length; i++) {
855            if (stateValues[i].ordinal() == stateOrdinal) {
856                state = stateValues[i];
857                break;
858            }
859        }
860        return state;
861    }
862
863    /**
864     * Restores the previous state, if it exists.
865     *
866     * @param savedState The previous state.
867     */
868    private void restoreState(Bundle savedState) {
869        if (savedState == null) {
870            return;
871        }
872
873        State state = intToState(savedState.getInt(RUNTIME_STATE, State.WORKSPACE.ordinal()));
874
875        if (state == State.ALL_APPS) {
876            showAllApps(false);
877        } else if (state == State.CUSTOMIZE) {
878            showCustomizationDrawer(false);
879        }
880
881        final int currentScreen = savedState.getInt(RUNTIME_STATE_CURRENT_SCREEN, -1);
882        if (currentScreen > -1) {
883            mWorkspace.setCurrentPage(currentScreen);
884        }
885
886        final int addScreen = savedState.getInt(RUNTIME_STATE_PENDING_ADD_SCREEN, -1);
887
888        if (addScreen > -1) {
889            mAddScreen = addScreen;
890            mAddIntersectCellX = savedState.getInt(RUNTIME_STATE_PENDING_ADD_CELL_X);
891            mAddIntersectCellY = savedState.getInt(RUNTIME_STATE_PENDING_ADD_CELL_Y);
892            mRestoring = true;
893        }
894
895        boolean renameFolder = savedState.getBoolean(RUNTIME_STATE_PENDING_FOLDER_RENAME, false);
896        if (renameFolder) {
897            long id = savedState.getLong(RUNTIME_STATE_PENDING_FOLDER_RENAME_ID);
898            mFolderInfo = mModel.getFolderById(this, sFolders, id);
899            mRestoring = true;
900        }
901
902        // Restore the current AllApps drawer tab
903        if (mAllAppsGrid != null && mAllAppsGrid instanceof AllAppsTabbed) {
904            String curTab = savedState.getString("allapps_currentTab");
905            if (curTab != null) {
906                AllAppsTabbed tabhost = (AllAppsTabbed) mAllAppsGrid;
907                tabhost.setCurrentTabByTag(curTab);
908            }
909            int curPage = savedState.getInt("allapps_currentPage", -1);
910            if (curPage > -1) {
911                mAllAppsPagedView.setRestorePage(curPage);
912            }
913        }
914
915        // Restore the current customization drawer tab
916        if (mHomeCustomizationDrawer != null) {
917            String curTab = savedState.getString("customize_currentTab");
918            if (curTab != null) {
919                // We set this directly so that there is no delay before the tab is set
920                mCustomizePagedView.setCustomizationFilter(getCustomizeFilterForTabTag(curTab));
921                mHomeCustomizationDrawer.setCurrentTabByTag(curTab);
922            }
923
924            // Note: currently we do not restore the page for the customization tray because unlike
925            // AllApps, the page content can change drastically
926        }
927    }
928
929    /**
930     * Finds all the views we need and configure them properly.
931     */
932    private void setupViews() {
933        final DragController dragController = mDragController;
934
935        DragLayer dragLayer = (DragLayer) findViewById(R.id.drag_layer);
936        dragLayer.setDragController(dragController);
937
938        mAllAppsGrid = (AllAppsView)dragLayer.findViewById(R.id.all_apps_view);
939        mAllAppsGrid.setLauncher(this);
940        mAllAppsGrid.setDragController(dragController);
941        ((View) mAllAppsGrid).setWillNotDraw(false); // We don't want a hole punched in our window.
942        // Manage focusability manually since this thing is always visible (in non-xlarge)
943        ((View) mAllAppsGrid).setFocusable(false);
944
945        if (LauncherApplication.isScreenXLarge()) {
946            // They need to be INVISIBLE initially so that they will be measured in the layout.
947            // Otherwise the animations are messed up when we show them for the first time.
948            ((View) mAllAppsGrid).setVisibility(View.INVISIBLE);
949            mHomeCustomizationDrawer.setVisibility(View.INVISIBLE);
950        }
951
952        mWorkspace = (Workspace) dragLayer.findViewById(R.id.workspace);
953
954        final Workspace workspace = mWorkspace;
955        workspace.setHapticFeedbackEnabled(false);
956
957        DeleteZone deleteZone = (DeleteZone) dragLayer.findViewById(R.id.delete_zone);
958        mDeleteZone = deleteZone;
959
960        View handleView = findViewById(R.id.all_apps_button);
961        if (handleView != null && handleView instanceof HandleView) {
962            // we don't use handle view in xlarge mode
963            mHandleView = (HandleView)handleView;
964            mHandleView.setLauncher(this);
965            mHandleView.setOnClickListener(this);
966            mHandleView.setOnLongClickListener(this);
967        }
968
969        if (mCustomizePagedView != null) {
970            mCustomizePagedView.setLauncher(this);
971            mCustomizePagedView.setDragController(dragController);
972        } else {
973             ImageView hotseatLeft = (ImageView) findViewById(R.id.hotseat_left);
974             hotseatLeft.setContentDescription(mHotseatLabels[0]);
975             hotseatLeft.setImageDrawable(mHotseatIcons[0]);
976             ImageView hotseatRight = (ImageView) findViewById(R.id.hotseat_right);
977             hotseatRight.setContentDescription(mHotseatLabels[1]);
978             hotseatRight.setImageDrawable(mHotseatIcons[1]);
979
980             mPreviousView = (ImageView) dragLayer.findViewById(R.id.previous_screen);
981             mNextView = (ImageView) dragLayer.findViewById(R.id.next_screen);
982
983             Drawable previous = mPreviousView.getDrawable();
984             Drawable next = mNextView.getDrawable();
985             mWorkspace.setIndicators(previous, next);
986
987             mPreviousView.setHapticFeedbackEnabled(false);
988             mPreviousView.setOnLongClickListener(this);
989             mNextView.setHapticFeedbackEnabled(false);
990             mNextView.setOnLongClickListener(this);
991        }
992
993        workspace.setOnLongClickListener(this);
994        workspace.setDragController(dragController);
995        workspace.setLauncher(this);
996        workspace.setWallpaperDimension();
997
998        deleteZone.setLauncher(this);
999        deleteZone.setDragController(dragController);
1000
1001        final View allAppsButton = findViewById(R.id.all_apps_button);
1002        final View divider = findViewById(R.id.divider);
1003        final View configureButton = findViewById(R.id.configure_button);
1004
1005        if (LauncherApplication.isScreenXLarge()) {
1006            deleteZone.setOverlappingViews(new View[] { allAppsButton, divider, configureButton });
1007        } else {
1008            deleteZone.setOverlappingView(findViewById(R.id.all_apps_button_cluster));
1009        }
1010        dragController.addDragListener(deleteZone);
1011
1012        DeleteZone allAppsDeleteZone = (DeleteZone) findViewById(R.id.all_apps_delete_zone);
1013        if (allAppsDeleteZone != null) {
1014            allAppsDeleteZone.setLauncher(this);
1015            allAppsDeleteZone.setDragController(dragController);
1016            allAppsDeleteZone.setDragAndDropEnabled(false);
1017            dragController.addDragListener(allAppsDeleteZone);
1018            dragController.addDropTarget(allAppsDeleteZone);
1019        }
1020
1021        ApplicationInfoDropTarget allAppsInfoTarget = (ApplicationInfoDropTarget)
1022                findViewById(R.id.all_apps_info_target);
1023        if (allAppsInfoTarget != null) {
1024            allAppsInfoTarget.setLauncher(this);
1025            dragController.addDragListener(allAppsInfoTarget);
1026            allAppsInfoTarget.setDragAndDropEnabled(false);
1027            View marketButton = findViewById(R.id.market_button);
1028            if (marketButton != null) {
1029                allAppsInfoTarget.setOverlappingView(marketButton);
1030            }
1031        }
1032
1033        dragController.setDragScoller(workspace);
1034        dragController.setScrollView(dragLayer);
1035        dragController.setMoveTarget(workspace);
1036
1037        // The order here is bottom to top.
1038        dragController.addDropTarget(workspace);
1039        dragController.addDropTarget(deleteZone);
1040        if (allAppsInfoTarget != null) {
1041            dragController.addDropTarget(allAppsInfoTarget);
1042        }
1043        if (allAppsDeleteZone != null) {
1044            dragController.addDropTarget(allAppsDeleteZone);
1045        }
1046    }
1047
1048    @SuppressWarnings({"UnusedDeclaration"})
1049    public void previousScreen(View v) {
1050        if (mState != State.ALL_APPS) {
1051            mWorkspace.scrollLeft();
1052        }
1053    }
1054
1055    @SuppressWarnings({"UnusedDeclaration"})
1056    public void nextScreen(View v) {
1057        if (mState != State.ALL_APPS) {
1058            mWorkspace.scrollRight();
1059        }
1060    }
1061
1062    @SuppressWarnings({"UnusedDeclaration"})
1063    public void launchHotSeat(View v) {
1064        if (mState == State.ALL_APPS) return;
1065
1066        int index = -1;
1067        if (v.getId() == R.id.hotseat_left) {
1068            index = 0;
1069        } else if (v.getId() == R.id.hotseat_right) {
1070            index = 1;
1071        }
1072
1073        // reload these every tap; you never know when they might change
1074        loadHotseats();
1075        if (index >= 0 && index < mHotseats.length && mHotseats[index] != null) {
1076            startActivitySafely(
1077                mHotseats[index],
1078                "hotseat"
1079            );
1080        }
1081    }
1082
1083    /**
1084     * Creates a view representing a shortcut.
1085     *
1086     * @param info The data structure describing the shortcut.
1087     *
1088     * @return A View inflated from R.layout.application.
1089     */
1090    View createShortcut(ShortcutInfo info) {
1091        return createShortcut(R.layout.application,
1092                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentPage()), info);
1093    }
1094
1095    /**
1096     * Creates a view representing a shortcut inflated from the specified resource.
1097     *
1098     * @param layoutResId The id of the XML layout used to create the shortcut.
1099     * @param parent The group the shortcut belongs to.
1100     * @param info The data structure describing the shortcut.
1101     *
1102     * @return A View inflated from layoutResId.
1103     */
1104    View createShortcut(int layoutResId, ViewGroup parent, ShortcutInfo info) {
1105        BubbleTextView favorite = (BubbleTextView) mInflater.inflate(layoutResId, parent, false);
1106        favorite.applyFromShortcutInfo(info, mIconCache);
1107        favorite.setOnClickListener(this);
1108        return favorite;
1109    }
1110
1111    /**
1112     * Add an application shortcut to the workspace.
1113     *
1114     * @param data The intent describing the application.
1115     * @param cellInfo The position on screen where to create the shortcut.
1116     */
1117    void completeAddApplication(Context context, Intent data, int screen,
1118            int intersectCellX, int intersectCellY) {
1119        final int[] cellXY = mTmpAddItemCellCoordinates;
1120        final CellLayout layout = (CellLayout) mWorkspace.getChildAt(screen);
1121
1122        if (!layout.findCellForSpanThatIntersects(cellXY, 1, 1, intersectCellX, intersectCellY)) {
1123            showOutOfSpaceMessage();
1124            return;
1125        }
1126
1127        final ShortcutInfo info = mModel.getShortcutInfo(context.getPackageManager(),
1128                data, context);
1129
1130        if (info != null) {
1131            info.setActivity(data.getComponent(), Intent.FLAG_ACTIVITY_NEW_TASK |
1132                    Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
1133            info.container = ItemInfo.NO_ID;
1134            mWorkspace.addApplicationShortcut(info, screen, cellXY[0], cellXY[1],
1135                    isWorkspaceLocked(), mAddIntersectCellX, mAddIntersectCellY);
1136        } else {
1137            Log.e(TAG, "Couldn't find ActivityInfo for selected application: " + data);
1138        }
1139    }
1140
1141    /**
1142     * Add a shortcut to the workspace.
1143     *
1144     * @param data The intent describing the shortcut.
1145     * @param cellInfo The position on screen where to create the shortcut.
1146     */
1147    private void completeAddShortcut(Intent data, int screen,
1148            int intersectCellX, int intersectCellY) {
1149        final int[] cellXY = mTmpAddItemCellCoordinates;
1150        final CellLayout layout = (CellLayout) mWorkspace.getChildAt(screen);
1151
1152        int[] touchXY = mAddDropPosition;
1153        boolean foundCellSpan = false;
1154        if (touchXY != null) {
1155            // when dragging and dropping, just find the closest free spot
1156            CellLayout screenLayout = (CellLayout) mWorkspace.getChildAt(screen);
1157            int[] result = screenLayout.findNearestVacantArea(
1158                    touchXY[0], touchXY[1], 1, 1, cellXY);
1159            foundCellSpan = (result != null);
1160        } else {
1161            foundCellSpan = layout.findCellForSpanThatIntersects(
1162                    cellXY, 1, 1, intersectCellX, intersectCellY);
1163        }
1164
1165        if (!foundCellSpan) {
1166            showOutOfSpaceMessage();
1167            return;
1168        }
1169
1170        final ShortcutInfo info = mModel.addShortcut(
1171                this, data, screen, cellXY[0], cellXY[1], false);
1172
1173        if (!mRestoring) {
1174            final View view = createShortcut(info);
1175            mWorkspace.addInScreen(view, screen, cellXY[0], cellXY[1], 1, 1, isWorkspaceLocked());
1176        }
1177    }
1178
1179    /**
1180     * Add a widget to the workspace.
1181     *
1182     * @param appWidgetId The app widget id
1183     * @param cellInfo The position on screen where to create the widget.
1184     */
1185    private void completeAddAppWidget(int appWidgetId, int screen) {
1186        AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
1187
1188        // Calculate the grid spans needed to fit this widget
1189        CellLayout layout = (CellLayout) mWorkspace.getChildAt(screen);
1190        int[] spanXY = layout.rectToCell(appWidgetInfo.minWidth, appWidgetInfo.minHeight, null);
1191
1192        // Try finding open space on Launcher screen
1193        // We have saved the position to which the widget was dragged-- this really only matters
1194        // if we are placing widgets on a "spring-loaded" screen
1195        final int[] cellXY = mTmpAddItemCellCoordinates;
1196
1197        int[] touchXY = mAddDropPosition;
1198        boolean foundCellSpan = false;
1199        if (touchXY != null) {
1200            // when dragging and dropping, just find the closest free spot
1201            CellLayout screenLayout = (CellLayout) mWorkspace.getChildAt(screen);
1202            int[] result = screenLayout.findNearestVacantArea(
1203                    touchXY[0], touchXY[1], spanXY[0], spanXY[1], cellXY);
1204            foundCellSpan = (result != null);
1205        } else {
1206            // if we long pressed on an empty cell to bring up a menu,
1207            // make sure we intersect the empty cell
1208            // if mAddIntersectCellX/Y are -1 (e.g. we used menu -> add) then
1209            // findCellForSpanThatIntersects will just ignore them
1210            foundCellSpan = layout.findCellForSpanThatIntersects(cellXY, spanXY[0], spanXY[1],
1211                    mAddIntersectCellX, mAddIntersectCellY);
1212        }
1213
1214        if (!foundCellSpan) {
1215            if (appWidgetId != -1) mAppWidgetHost.deleteAppWidgetId(appWidgetId);
1216            showOutOfSpaceMessage();
1217            return;
1218        }
1219
1220        // Build Launcher-specific widget info and save to database
1221        LauncherAppWidgetInfo launcherInfo = new LauncherAppWidgetInfo(appWidgetId);
1222        launcherInfo.spanX = spanXY[0];
1223        launcherInfo.spanY = spanXY[1];
1224
1225        LauncherModel.addItemToDatabase(this, launcherInfo,
1226                LauncherSettings.Favorites.CONTAINER_DESKTOP,
1227                screen, cellXY[0], cellXY[1], false);
1228
1229        if (!mRestoring) {
1230            mDesktopItems.add(launcherInfo);
1231
1232            // Perform actual inflation because we're live
1233            launcherInfo.hostView = mAppWidgetHost.createView(this, appWidgetId, appWidgetInfo);
1234
1235            launcherInfo.hostView.setAppWidget(appWidgetId, appWidgetInfo);
1236            launcherInfo.hostView.setTag(launcherInfo);
1237
1238            mWorkspace.addInScreen(launcherInfo.hostView, screen, cellXY[0], cellXY[1],
1239                    launcherInfo.spanX, launcherInfo.spanY, isWorkspaceLocked());
1240
1241            addWidgetToAutoAdvanceIfNeeded(launcherInfo.hostView, appWidgetInfo);
1242        }
1243    }
1244
1245    private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
1246        @Override
1247        public void onReceive(Context context, Intent intent) {
1248            final String action = intent.getAction();
1249            if (Intent.ACTION_SCREEN_OFF.equals(action)) {
1250                mUserPresent = false;
1251                updateRunning();
1252            } else if (Intent.ACTION_USER_PRESENT.equals(action)) {
1253                mUserPresent = true;
1254                updateRunning();
1255            }
1256        }
1257    };
1258
1259    @Override
1260    public void onAttachedToWindow() {
1261        super.onAttachedToWindow();
1262
1263        // Listen for broadcasts related to user-presence
1264        final IntentFilter filter = new IntentFilter();
1265        filter.addAction(Intent.ACTION_SCREEN_OFF);
1266        filter.addAction(Intent.ACTION_USER_PRESENT);
1267        registerReceiver(mReceiver, filter);
1268
1269        mAttached = true;
1270        mVisible = true;
1271    }
1272
1273    @Override
1274    public void onDetachedFromWindow() {
1275        super.onDetachedFromWindow();
1276        mVisible = false;
1277
1278        if (mAttached) {
1279            unregisterReceiver(mReceiver);
1280            mAttached = false;
1281        }
1282        updateRunning();
1283    }
1284
1285    public void onWindowVisibilityChanged(int visibility) {
1286        mVisible = visibility == View.VISIBLE;
1287        updateRunning();
1288    }
1289
1290    private void sendAdvanceMessage(long delay) {
1291        mHandler.removeMessages(ADVANCE_MSG);
1292        Message msg = mHandler.obtainMessage(ADVANCE_MSG);
1293        mHandler.sendMessageDelayed(msg, delay);
1294        mAutoAdvanceSentTime = System.currentTimeMillis();
1295    }
1296
1297    private void updateRunning() {
1298        boolean autoAdvanceRunning = mVisible && mUserPresent && !mWidgetsToAdvance.isEmpty();
1299        if (autoAdvanceRunning != mAutoAdvanceRunning) {
1300            mAutoAdvanceRunning = autoAdvanceRunning;
1301            if (autoAdvanceRunning) {
1302                long delay = mAutoAdvanceTimeLeft == -1 ? mAdvanceInterval : mAutoAdvanceTimeLeft;
1303                sendAdvanceMessage(delay);
1304            } else {
1305                if (!mWidgetsToAdvance.isEmpty()) {
1306                    mAutoAdvanceTimeLeft = Math.max(0, mAdvanceInterval -
1307                            (System.currentTimeMillis() - mAutoAdvanceSentTime));
1308                }
1309                mHandler.removeMessages(ADVANCE_MSG);
1310                mHandler.removeMessages(0); // Remove messages sent using postDelayed()
1311            }
1312        }
1313    }
1314
1315    private final Handler mHandler = new Handler() {
1316        @Override
1317        public void handleMessage(Message msg) {
1318            if (msg.what == ADVANCE_MSG) {
1319                int i = 0;
1320                for (View key: mWidgetsToAdvance.keySet()) {
1321                    final View v = key.findViewById(mWidgetsToAdvance.get(key).autoAdvanceViewId);
1322                    final int delay = mAdvanceStagger * i;
1323                    if (v instanceof Advanceable) {
1324                       postDelayed(new Runnable() {
1325                           public void run() {
1326                               ((Advanceable) v).advance();
1327                           }
1328                       }, delay);
1329                    }
1330                    i++;
1331                }
1332                sendAdvanceMessage(mAdvanceInterval);
1333            }
1334        }
1335    };
1336
1337    void addWidgetToAutoAdvanceIfNeeded(View hostView, AppWidgetProviderInfo appWidgetInfo) {
1338        if (appWidgetInfo.autoAdvanceViewId == -1) return;
1339        View v = hostView.findViewById(appWidgetInfo.autoAdvanceViewId);
1340        if (v instanceof Advanceable) {
1341            mWidgetsToAdvance.put(hostView, appWidgetInfo);
1342            ((Advanceable) v).fyiWillBeAdvancedByHostKThx();
1343            updateRunning();
1344        }
1345    }
1346
1347    void removeWidgetToAutoAdvance(View hostView) {
1348        if (mWidgetsToAdvance.containsKey(hostView)) {
1349            mWidgetsToAdvance.remove(hostView);
1350            updateRunning();
1351        }
1352    }
1353
1354    public void removeAppWidget(LauncherAppWidgetInfo launcherInfo) {
1355        mDesktopItems.remove(launcherInfo);
1356        removeWidgetToAutoAdvance(launcherInfo.hostView);
1357        launcherInfo.hostView = null;
1358    }
1359
1360    void showOutOfSpaceMessage() {
1361        Toast.makeText(this, getString(R.string.out_of_space), Toast.LENGTH_SHORT).show();
1362    }
1363
1364    public LauncherAppWidgetHost getAppWidgetHost() {
1365        return mAppWidgetHost;
1366    }
1367
1368    public LauncherModel getModel() {
1369        return mModel;
1370    }
1371
1372    void closeSystemDialogs() {
1373        getWindow().closeAllPanels();
1374
1375        try {
1376            dismissDialog(DIALOG_CREATE_SHORTCUT);
1377            // Unlock the workspace if the dialog was showing
1378        } catch (Exception e) {
1379            // An exception is thrown if the dialog is not visible, which is fine
1380        }
1381
1382        try {
1383            dismissDialog(DIALOG_RENAME_FOLDER);
1384            // Unlock the workspace if the dialog was showing
1385        } catch (Exception e) {
1386            // An exception is thrown if the dialog is not visible, which is fine
1387        }
1388
1389        // Whatever we were doing is hereby canceled.
1390        mWaitingForResult = false;
1391    }
1392
1393    @Override
1394    protected void onNewIntent(Intent intent) {
1395        super.onNewIntent(intent);
1396
1397        // Close the menu
1398        if (Intent.ACTION_MAIN.equals(intent.getAction())) {
1399            // also will cancel mWaitingForResult.
1400            closeSystemDialogs();
1401
1402            boolean alreadyOnHome = ((intent.getFlags() & Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT)
1403                        != Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT);
1404
1405            // in all these cases, only animate if we're already on home
1406            if (LauncherApplication.isScreenXLarge()) {
1407                mWorkspace.unshrink(alreadyOnHome);
1408            }
1409            if (!mWorkspace.isDefaultPageShowing()) {
1410                // on the phone, we don't animate the change to the workspace if all apps is visible
1411                boolean animate = alreadyOnHome &&
1412                    (LauncherApplication.isScreenXLarge() || mState != State.ALL_APPS);
1413                mWorkspace.moveToDefaultScreen(animate);
1414                if (!animate) mWorkspace.updateWallpaperOffsetImmediately();
1415            }
1416            showWorkspace(alreadyOnHome);
1417
1418            final View v = getWindow().peekDecorView();
1419            if (v != null && v.getWindowToken() != null) {
1420                InputMethodManager imm = (InputMethodManager)getSystemService(
1421                        INPUT_METHOD_SERVICE);
1422                imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
1423            }
1424        }
1425    }
1426
1427    @Override
1428    protected void onRestoreInstanceState(Bundle savedInstanceState) {
1429        // Do not call super here
1430        mSavedInstanceState = savedInstanceState;
1431    }
1432
1433    @Override
1434    protected void onSaveInstanceState(Bundle outState) {
1435        outState.putInt(RUNTIME_STATE_CURRENT_SCREEN, mWorkspace.getCurrentPage());
1436
1437        final ArrayList<Folder> folders = mWorkspace.getOpenFolders();
1438        if (folders.size() > 0) {
1439            final int count = folders.size();
1440            long[] ids = new long[count];
1441            for (int i = 0; i < count; i++) {
1442                final FolderInfo info = folders.get(i).getInfo();
1443                ids[i] = info.id;
1444            }
1445            outState.putLongArray(RUNTIME_STATE_USER_FOLDERS, ids);
1446        } else {
1447            super.onSaveInstanceState(outState);
1448        }
1449
1450        outState.putInt(RUNTIME_STATE, mState.ordinal());
1451
1452        if (mAddScreen > -1 && mWaitingForResult) {
1453            outState.putInt(RUNTIME_STATE_PENDING_ADD_SCREEN, mAddScreen);
1454            outState.putInt(RUNTIME_STATE_PENDING_ADD_CELL_X, mAddIntersectCellX);
1455            outState.putInt(RUNTIME_STATE_PENDING_ADD_CELL_Y, mAddIntersectCellY);
1456        }
1457
1458        if (mFolderInfo != null && mWaitingForResult) {
1459            outState.putBoolean(RUNTIME_STATE_PENDING_FOLDER_RENAME, true);
1460            outState.putLong(RUNTIME_STATE_PENDING_FOLDER_RENAME_ID, mFolderInfo.id);
1461        }
1462
1463        // Save the current AllApps drawer tab
1464        if (mAllAppsGrid != null && mAllAppsGrid instanceof AllAppsTabbed) {
1465            AllAppsTabbed tabhost = (AllAppsTabbed) mAllAppsGrid;
1466            String currentTabTag = tabhost.getCurrentTabTag();
1467            if (currentTabTag != null) {
1468                outState.putString("allapps_currentTab", currentTabTag);
1469                outState.putInt("allapps_currentPage", mAllAppsPagedView.getCurrentPage());
1470            }
1471        }
1472
1473        // Save the current customization drawer tab
1474        if (mHomeCustomizationDrawer != null) {
1475            String currentTabTag = mHomeCustomizationDrawer.getCurrentTabTag();
1476            if (currentTabTag != null) {
1477                outState.putString("customize_currentTab", currentTabTag);
1478            }
1479        }
1480    }
1481
1482    @Override
1483    public void onDestroy() {
1484        super.onDestroy();
1485
1486        try {
1487            mAppWidgetHost.stopListening();
1488        } catch (NullPointerException ex) {
1489            Log.w(TAG, "problem while stopping AppWidgetHost during Launcher destruction", ex);
1490        }
1491        mAppWidgetHost = null;
1492
1493        mWidgetsToAdvance.clear();
1494
1495        TextKeyListener.getInstance().release();
1496
1497        mModel.stopLoader();
1498
1499        unbindDesktopItems();
1500
1501        getContentResolver().unregisterContentObserver(mWidgetObserver);
1502
1503        // Some launcher layouts don't have a previous and next view
1504        if (mPreviousView != null) {
1505            dismissPreview(mPreviousView);
1506        }
1507        if (mNextView != null) {
1508            dismissPreview(mNextView);
1509        }
1510
1511        unregisterReceiver(mCloseSystemDialogsReceiver);
1512
1513        ((ViewGroup) mWorkspace.getParent()).removeAllViews();
1514        mWorkspace.removeAllViews();
1515        mWorkspace = null;
1516        mDragController = null;
1517
1518        ValueAnimator.clearAllAnimations();
1519    }
1520
1521    @Override
1522    public void startActivityForResult(Intent intent, int requestCode) {
1523        if (requestCode >= 0) mWaitingForResult = true;
1524        super.startActivityForResult(intent, requestCode);
1525    }
1526
1527    @Override
1528    public void startSearch(String initialQuery, boolean selectInitialQuery,
1529            Bundle appSearchData, boolean globalSearch) {
1530
1531        showWorkspace(true);
1532
1533        if (initialQuery == null) {
1534            // Use any text typed in the launcher as the initial query
1535            initialQuery = getTypedText();
1536            clearTypedText();
1537        }
1538        if (appSearchData == null) {
1539            appSearchData = new Bundle();
1540            appSearchData.putString(Search.SOURCE, "launcher-search");
1541        }
1542
1543        final SearchManager searchManager =
1544                (SearchManager) getSystemService(Context.SEARCH_SERVICE);
1545        searchManager.startSearch(initialQuery, selectInitialQuery, getComponentName(),
1546            appSearchData, globalSearch);
1547    }
1548
1549    @Override
1550    public boolean onCreateOptionsMenu(Menu menu) {
1551        if (isWorkspaceLocked()) {
1552            return false;
1553        }
1554
1555        super.onCreateOptionsMenu(menu);
1556
1557        menu.add(MENU_GROUP_ADD, MENU_ADD, 0, R.string.menu_add)
1558                .setIcon(android.R.drawable.ic_menu_add)
1559                .setAlphabeticShortcut('A');
1560        menu.add(0, MENU_MANAGE_APPS, 0, R.string.menu_manage_apps)
1561                .setIcon(android.R.drawable.ic_menu_manage)
1562                .setAlphabeticShortcut('M');
1563        menu.add(MENU_GROUP_WALLPAPER, MENU_WALLPAPER_SETTINGS, 0, R.string.menu_wallpaper)
1564                 .setIcon(android.R.drawable.ic_menu_gallery)
1565                 .setAlphabeticShortcut('W');
1566        menu.add(0, MENU_SEARCH, 0, R.string.menu_search)
1567                .setIcon(android.R.drawable.ic_search_category_default)
1568                .setAlphabeticShortcut(SearchManager.MENU_KEY);
1569        menu.add(0, MENU_NOTIFICATIONS, 0, R.string.menu_notifications)
1570                .setIcon(com.android.internal.R.drawable.ic_menu_notifications)
1571                .setAlphabeticShortcut('N');
1572
1573        final Intent settings = new Intent(android.provider.Settings.ACTION_SETTINGS);
1574        settings.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
1575                Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
1576
1577        menu.add(0, MENU_SETTINGS, 0, R.string.menu_settings)
1578                .setIcon(android.R.drawable.ic_menu_preferences).setAlphabeticShortcut('P')
1579                .setIntent(settings);
1580
1581        return true;
1582    }
1583
1584    @Override
1585    public boolean onPrepareOptionsMenu(Menu menu) {
1586        super.onPrepareOptionsMenu(menu);
1587
1588        // If all apps is animating, don't show the menu, because we don't know
1589        // which one to show.
1590        if (mAllAppsGrid.isAnimating()) {
1591            return false;
1592        }
1593
1594        // Only show the add and wallpaper options when we're not in all apps.
1595        boolean visible = !mAllAppsGrid.isVisible();
1596        menu.setGroupVisible(MENU_GROUP_ADD, visible);
1597        menu.setGroupVisible(MENU_GROUP_WALLPAPER, visible);
1598
1599        // Disable add if the workspace is full.
1600        if (visible) {
1601            CellLayout layout = (CellLayout) mWorkspace.getChildAt(mWorkspace.getCurrentPage());
1602            menu.setGroupEnabled(MENU_GROUP_ADD, layout.existsEmptyCell());
1603        }
1604
1605        return true;
1606    }
1607
1608    @Override
1609    public boolean onOptionsItemSelected(MenuItem item) {
1610        switch (item.getItemId()) {
1611            case MENU_ADD:
1612                addItems();
1613                return true;
1614            case MENU_MANAGE_APPS:
1615                manageApps();
1616                return true;
1617            case MENU_WALLPAPER_SETTINGS:
1618                startWallpaper();
1619                return true;
1620            case MENU_SEARCH:
1621                onSearchRequested();
1622                return true;
1623            case MENU_NOTIFICATIONS:
1624                showNotifications();
1625                return true;
1626        }
1627
1628        return super.onOptionsItemSelected(item);
1629    }
1630
1631    /**
1632     * Indicates that we want global search for this activity by setting the globalSearch
1633     * argument for {@link #startSearch} to true.
1634     */
1635
1636    @Override
1637    public boolean onSearchRequested() {
1638        startSearch(null, false, null, true);
1639        return true;
1640    }
1641
1642    public boolean isWorkspaceLocked() {
1643        return mWorkspaceLoading || mWaitingForResult;
1644    }
1645
1646    private void addItems() {
1647        if (LauncherApplication.isScreenXLarge()) {
1648            // Animate the widget chooser up from the bottom of the screen
1649            if (mState != State.CUSTOMIZE) {
1650                showCustomizationDrawer(true);
1651            }
1652        } else {
1653            showWorkspace(true);
1654            showAddDialog(-1, -1);
1655        }
1656    }
1657
1658    private void resetAddInfo() {
1659        mAddScreen = -1;
1660        mAddIntersectCellX = -1;
1661        mAddIntersectCellY = -1;
1662        mAddDropPosition = null;
1663    }
1664
1665    void addAppWidgetFromDrop(PendingAddWidgetInfo info, int screen, int[] position) {
1666        resetAddInfo();
1667        mAddScreen = screen;
1668        mAddDropPosition = position;
1669
1670        int appWidgetId = getAppWidgetHost().allocateAppWidgetId();
1671        AppWidgetManager.getInstance(this).bindAppWidgetId(appWidgetId, info.componentName);
1672        addAppWidgetImpl(appWidgetId, info);
1673    }
1674
1675    private void manageApps() {
1676        startActivity(new Intent(android.provider.Settings.ACTION_MANAGE_ALL_APPLICATIONS_SETTINGS));
1677    }
1678
1679    void addAppWidgetFromPick(Intent data) {
1680        // TODO: catch bad widget exception when sent
1681        int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
1682        // TODO: Is this log message meaningful?
1683        if (LOGD) Log.d(TAG, "dumping extras content=" + data.getExtras());
1684        addAppWidgetImpl(appWidgetId, null);
1685    }
1686
1687    void addAppWidgetImpl(int appWidgetId, PendingAddWidgetInfo info) {
1688        AppWidgetProviderInfo appWidget = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
1689
1690        if (appWidget.configure != null) {
1691            // Launch over to configure widget, if needed
1692            Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_CONFIGURE);
1693            intent.setComponent(appWidget.configure);
1694            intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
1695            if (info != null) {
1696                if (info.mimeType != null && !info.mimeType.isEmpty()) {
1697                    intent.putExtra(
1698                            InstallWidgetReceiver.EXTRA_APPWIDGET_CONFIGURATION_DATA_MIME_TYPE,
1699                            info.mimeType);
1700
1701                    final String mimeType = info.mimeType;
1702                    final ClipData clipData = (ClipData) info.configurationData;
1703                    final ClipDescription clipDesc = clipData.getDescription();
1704                    for (int i = 0; i < clipDesc.getMimeTypeCount(); ++i) {
1705                        if (clipDesc.getMimeType(i).equals(mimeType)) {
1706                            final ClipData.Item item = clipData.getItemAt(i);
1707                            final CharSequence stringData = item.getText();
1708                            final Uri uriData = item.getUri();
1709                            final Intent intentData = item.getIntent();
1710                            final String key =
1711                                InstallWidgetReceiver.EXTRA_APPWIDGET_CONFIGURATION_DATA;
1712                            if (uriData != null) {
1713                                intent.putExtra(key, uriData);
1714                            } else if (intentData != null) {
1715                                intent.putExtra(key, intentData);
1716                            } else if (stringData != null) {
1717                                intent.putExtra(key, stringData);
1718                            }
1719                            break;
1720                        }
1721                    }
1722                }
1723            }
1724
1725            startActivityForResultSafely(intent, REQUEST_CREATE_APPWIDGET);
1726        } else {
1727            // Otherwise just add it
1728            completeAddAppWidget(appWidgetId, mAddScreen);
1729        }
1730    }
1731
1732    void processShortcutFromDrop(ComponentName componentName, int screen, int[] position) {
1733        resetAddInfo();
1734        mAddScreen = screen;
1735        mAddDropPosition = position;
1736
1737        Intent createShortcutIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT);
1738        createShortcutIntent.setComponent(componentName);
1739        processShortcut(createShortcutIntent);
1740    }
1741
1742    void processShortcut(Intent intent) {
1743        // Handle case where user selected "Applications"
1744        String applicationName = getResources().getString(R.string.group_applications);
1745        String shortcutName = intent.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
1746
1747        if (applicationName != null && applicationName.equals(shortcutName)) {
1748            Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
1749            mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
1750
1751            Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
1752            pickIntent.putExtra(Intent.EXTRA_INTENT, mainIntent);
1753            pickIntent.putExtra(Intent.EXTRA_TITLE, getText(R.string.title_select_application));
1754            startActivityForResultSafely(pickIntent, REQUEST_PICK_APPLICATION);
1755        } else {
1756            startActivityForResultSafely(intent, REQUEST_CREATE_SHORTCUT);
1757        }
1758    }
1759
1760    void processWallpaper(Intent intent) {
1761        startActivityForResult(intent, REQUEST_PICK_WALLPAPER);
1762    }
1763
1764    void addLiveFolderFromDrop(ComponentName componentName, int screen, int[] position) {
1765        resetAddInfo();
1766        mAddScreen = screen;
1767        mAddDropPosition = position;
1768
1769        Intent createFolderIntent = new Intent(LiveFolders.ACTION_CREATE_LIVE_FOLDER);
1770        createFolderIntent.setComponent(componentName);
1771
1772        addLiveFolder(createFolderIntent);
1773    }
1774
1775    void addLiveFolder(Intent intent) { // YYY add screen intersect etc. parameters here
1776        // Handle case where user selected "Folder"
1777        String folderName = getResources().getString(R.string.group_folder);
1778        String shortcutName = intent.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
1779
1780        if (folderName != null && folderName.equals(shortcutName)) {
1781            addFolder(mAddScreen, mAddIntersectCellX, mAddIntersectCellY);
1782        } else {
1783            startActivityForResultSafely(intent, REQUEST_CREATE_LIVE_FOLDER);
1784        }
1785    }
1786
1787    void addFolder(int screen, int intersectCellX, int intersectCellY) {
1788        UserFolderInfo folderInfo = new UserFolderInfo();
1789        folderInfo.title = getText(R.string.folder_name);
1790
1791        final CellLayout layout = (CellLayout) mWorkspace.getChildAt(screen);
1792        final int[] cellXY = mTmpAddItemCellCoordinates;
1793        if (!layout.findCellForSpanThatIntersects(cellXY, 1, 1, intersectCellX, intersectCellY)) {
1794            showOutOfSpaceMessage();
1795            return;
1796        }
1797
1798        // Update the model
1799        LauncherModel.addItemToDatabase(this, folderInfo,
1800                LauncherSettings.Favorites.CONTAINER_DESKTOP,
1801                screen, cellXY[0], cellXY[1], false);
1802        sFolders.put(folderInfo.id, folderInfo);
1803
1804        // Create the view
1805        FolderIcon newFolder = FolderIcon.fromXml(R.layout.folder_icon, this,
1806                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentPage()),
1807                folderInfo, mIconCache);
1808        mWorkspace.addInScreen(newFolder, screen, cellXY[0], cellXY[1], 1, 1, isWorkspaceLocked());
1809    }
1810
1811    void removeFolder(FolderInfo folder) {
1812        sFolders.remove(folder.id);
1813    }
1814
1815    private void completeAddLiveFolder(
1816            Intent data, int screen, int intersectCellX, int intersectCellY) {
1817        final CellLayout layout = (CellLayout) mWorkspace.getChildAt(screen);
1818        final int[] cellXY = mTmpAddItemCellCoordinates;
1819        if (!layout.findCellForSpanThatIntersects(cellXY, 1, 1, intersectCellX, intersectCellY)) {
1820            showOutOfSpaceMessage();
1821            return;
1822        }
1823
1824        final LiveFolderInfo info = addLiveFolder(this, data, screen, cellXY[0], cellXY[1], false);
1825
1826        if (!mRestoring) {
1827            final View view = LiveFolderIcon.fromXml(R.layout.live_folder_icon, this,
1828                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentPage()), info);
1829            mWorkspace.addInScreen(view, screen, cellXY[0], cellXY[1], 1, 1, isWorkspaceLocked());
1830        }
1831    }
1832
1833    static LiveFolderInfo addLiveFolder(Context context, Intent data,
1834            int screen, int cellX, int cellY, boolean notify) {
1835
1836        Intent baseIntent = data.getParcelableExtra(LiveFolders.EXTRA_LIVE_FOLDER_BASE_INTENT);
1837        String name = data.getStringExtra(LiveFolders.EXTRA_LIVE_FOLDER_NAME);
1838
1839        Drawable icon = null;
1840        Intent.ShortcutIconResource iconResource = null;
1841
1842        Parcelable extra = data.getParcelableExtra(LiveFolders.EXTRA_LIVE_FOLDER_ICON);
1843        if (extra != null && extra instanceof Intent.ShortcutIconResource) {
1844            try {
1845                iconResource = (Intent.ShortcutIconResource) extra;
1846                final PackageManager packageManager = context.getPackageManager();
1847                Resources resources = packageManager.getResourcesForApplication(
1848                        iconResource.packageName);
1849                final int id = resources.getIdentifier(iconResource.resourceName, null, null);
1850                icon = resources.getDrawable(id);
1851            } catch (Exception e) {
1852                Log.w(TAG, "Could not load live folder icon: " + extra);
1853            }
1854        }
1855
1856        if (icon == null) {
1857            icon = context.getResources().getDrawable(R.drawable.ic_launcher_folder);
1858        }
1859
1860        final LiveFolderInfo info = new LiveFolderInfo();
1861        info.icon = Utilities.createIconBitmap(icon, context);
1862        info.title = name;
1863        info.iconResource = iconResource;
1864        info.uri = data.getData();
1865        info.baseIntent = baseIntent;
1866        info.displayMode = data.getIntExtra(LiveFolders.EXTRA_LIVE_FOLDER_DISPLAY_MODE,
1867                LiveFolders.DISPLAY_MODE_GRID);
1868
1869        LauncherModel.addItemToDatabase(context, info, LauncherSettings.Favorites.CONTAINER_DESKTOP,
1870                screen, cellX, cellY, notify);
1871        sFolders.put(info.id, info);
1872
1873        return info;
1874    }
1875
1876    private void showNotifications() {
1877        final StatusBarManager statusBar = (StatusBarManager) getSystemService(STATUS_BAR_SERVICE);
1878        if (statusBar != null) {
1879            statusBar.expand();
1880        }
1881    }
1882
1883    private void startWallpaper() {
1884        showWorkspace(true);
1885        final Intent pickWallpaper = new Intent(Intent.ACTION_SET_WALLPAPER);
1886        Intent chooser = Intent.createChooser(pickWallpaper,
1887                getText(R.string.chooser_wallpaper));
1888        // NOTE: Adds a configure option to the chooser if the wallpaper supports it
1889        //       Removed in Eclair MR1
1890//        WallpaperManager wm = (WallpaperManager)
1891//                getSystemService(Context.WALLPAPER_SERVICE);
1892//        WallpaperInfo wi = wm.getWallpaperInfo();
1893//        if (wi != null && wi.getSettingsActivity() != null) {
1894//            LabeledIntent li = new LabeledIntent(getPackageName(),
1895//                    R.string.configure_wallpaper, 0);
1896//            li.setClassName(wi.getPackageName(), wi.getSettingsActivity());
1897//            chooser.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Intent[] { li });
1898//        }
1899        startActivityForResult(chooser, REQUEST_PICK_WALLPAPER);
1900    }
1901
1902    /**
1903     * Registers various content observers. The current implementation registers
1904     * only a favorites observer to keep track of the favorites applications.
1905     */
1906    private void registerContentObservers() {
1907        ContentResolver resolver = getContentResolver();
1908        resolver.registerContentObserver(LauncherProvider.CONTENT_APPWIDGET_RESET_URI,
1909                true, mWidgetObserver);
1910    }
1911
1912    @Override
1913    public boolean dispatchKeyEvent(KeyEvent event) {
1914        if (event.getAction() == KeyEvent.ACTION_DOWN) {
1915            switch (event.getKeyCode()) {
1916                case KeyEvent.KEYCODE_HOME:
1917                    return true;
1918                case KeyEvent.KEYCODE_VOLUME_DOWN:
1919                    if (SystemProperties.getInt("debug.launcher2.dumpstate", 0) != 0) {
1920                        dumpState();
1921                        return true;
1922                    }
1923                    break;
1924            }
1925        } else if (event.getAction() == KeyEvent.ACTION_UP) {
1926            switch (event.getKeyCode()) {
1927                case KeyEvent.KEYCODE_HOME:
1928                    return true;
1929            }
1930        }
1931
1932        return super.dispatchKeyEvent(event);
1933    }
1934
1935    @Override
1936    public void onBackPressed() {
1937        if (mState == State.ALL_APPS || mState == State.CUSTOMIZE) {
1938            showWorkspace(true);
1939        } else {
1940            closeFolder();
1941        }
1942        // Some launcher layouts don't have a previous and next view
1943        if (mPreviousView != null) {
1944            dismissPreview(mPreviousView);
1945            dismissPreview(mNextView);
1946        }
1947    }
1948
1949    private void closeFolder() {
1950        Folder folder = mWorkspace.getOpenFolder();
1951        if (folder != null) {
1952            closeFolder(folder);
1953        }
1954    }
1955
1956    void closeFolder(Folder folder) {
1957        folder.getInfo().opened = false;
1958        ViewGroup parent = (ViewGroup) folder.getParent().getParent();
1959        if (parent != null) {
1960            CellLayout cl = (CellLayout) parent;
1961            cl.removeViewWithoutMarkingCells(folder);
1962            if (folder instanceof DropTarget) {
1963                // Live folders aren't DropTargets.
1964                mDragController.removeDropTarget((DropTarget)folder);
1965            }
1966        }
1967        folder.onClose();
1968    }
1969
1970    /**
1971     * Re-listen when widgets are reset.
1972     */
1973    private void onAppWidgetReset() {
1974        mAppWidgetHost.startListening();
1975    }
1976
1977    /**
1978     * Go through the and disconnect any of the callbacks in the drawables and the views or we
1979     * leak the previous Home screen on orientation change.
1980     */
1981    private void unbindDesktopItems() {
1982        for (ItemInfo item: mDesktopItems) {
1983            item.unbind();
1984        }
1985        mDesktopItems.clear();
1986    }
1987
1988    /**
1989     * Launches the intent referred by the clicked shortcut.
1990     *
1991     * @param v The view representing the clicked shortcut.
1992     */
1993    public void onClick(View v) {
1994        Object tag = v.getTag();
1995        if (tag instanceof ShortcutInfo) {
1996            // Open shortcut
1997            final Intent intent = ((ShortcutInfo) tag).intent;
1998            int[] pos = new int[2];
1999            v.getLocationOnScreen(pos);
2000            intent.setSourceBounds(new Rect(pos[0], pos[1],
2001                    pos[0] + v.getWidth(), pos[1] + v.getHeight()));
2002            startActivitySafely(intent, tag);
2003        } else if (tag instanceof FolderInfo) {
2004            handleFolderClick((FolderInfo) tag);
2005        } else if (v == mHandleView) {
2006            if (mState == State.ALL_APPS) {
2007                showWorkspace(true);
2008            } else {
2009                showAllApps(true);
2010            }
2011        }
2012    }
2013
2014    public boolean onTouch(View v, MotionEvent event) {
2015        // this is an intercepted event being forwarded from mWorkspace;
2016        // clicking anywhere on the workspace causes the customization drawer to slide down
2017        showWorkspace(true);
2018        return false;
2019    }
2020
2021    /**
2022     * Event handler for the search button
2023     *
2024     * @param v The view that was clicked.
2025     */
2026    public void onClickSearchButton(View v) {
2027        startSearch(null, false, null, true);
2028        // Use a custom animation for launching search
2029        overridePendingTransition(R.anim.fade_in_fast, R.anim.fade_out_fast);
2030    }
2031
2032    /**
2033     * Event handler for the voice button
2034     *
2035     * @param v The view that was clicked.
2036     */
2037    public void onClickVoiceButton(View v) {
2038        startVoiceSearch();
2039    }
2040
2041    private void startVoiceSearch() {
2042        Intent intent = new Intent(RecognizerIntent.ACTION_WEB_SEARCH);
2043        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
2044        startActivity(intent);
2045    }
2046
2047    /**
2048     * Event handler for the "gear" button that appears on the home screen, which
2049     * enters home screen customization mode.
2050     *
2051     * @param v The view that was clicked.
2052     */
2053    public void onClickConfigureButton(View v) {
2054        addItems();
2055    }
2056
2057    /**
2058     * Event handler for the "grid" button that appears on the home screen, which
2059     * enters all apps mode.
2060     *
2061     * @param v The view that was clicked.
2062     */
2063    public void onClickAllAppsButton(View v) {
2064        showAllApps(true);
2065    }
2066
2067    public void onClickAppMarketButton(View v) {
2068        if (mAppMarketIntent != null) {
2069            startActivitySafely(mAppMarketIntent, "app market");
2070        }
2071    }
2072
2073    void startApplicationDetailsActivity(ComponentName componentName) {
2074        String packageName = componentName.getPackageName();
2075        Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS,
2076                Uri.fromParts("package", packageName, null));
2077        startActivity(intent);
2078    }
2079
2080    void startApplicationUninstallActivity(ApplicationInfo appInfo) {
2081        if ((appInfo.flags & ApplicationInfo.DOWNLOADED_FLAG) == 0) {
2082            // System applications cannot be installed. For now, show a toast explaining that.
2083            // We may give them the option of disabling apps this way.
2084            int messageId = R.string.uninstall_system_app_text;
2085            Toast.makeText(this, messageId, Toast.LENGTH_SHORT).show();
2086        } else {
2087            String packageName = appInfo.componentName.getPackageName();
2088            String className = appInfo.componentName.getClassName();
2089            Intent intent = new Intent(
2090                    Intent.ACTION_DELETE, Uri.fromParts("package", packageName, className));
2091            startActivity(intent);
2092        }
2093    }
2094
2095    void startActivitySafely(Intent intent, Object tag) {
2096        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
2097        try {
2098            startActivity(intent);
2099        } catch (ActivityNotFoundException e) {
2100            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
2101            Log.e(TAG, "Unable to launch. tag=" + tag + " intent=" + intent, e);
2102        } catch (SecurityException e) {
2103            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
2104            Log.e(TAG, "Launcher does not have the permission to launch " + intent +
2105                    ". Make sure to create a MAIN intent-filter for the corresponding activity " +
2106                    "or use the exported attribute for this activity. "
2107                    + "tag="+ tag + " intent=" + intent, e);
2108        }
2109    }
2110
2111    void startActivityForResultSafely(Intent intent, int requestCode) {
2112        try {
2113            startActivityForResult(intent, requestCode);
2114        } catch (ActivityNotFoundException e) {
2115            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
2116        } catch (SecurityException e) {
2117            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
2118            Log.e(TAG, "Launcher does not have the permission to launch " + intent +
2119                    ". Make sure to create a MAIN intent-filter for the corresponding activity " +
2120                    "or use the exported attribute for this activity.", e);
2121        }
2122    }
2123
2124    private void handleFolderClick(FolderInfo folderInfo) {
2125        if (!folderInfo.opened) {
2126            // Close any open folder
2127            closeFolder();
2128            // Open the requested folder
2129            openFolder(folderInfo);
2130        } else {
2131            // Find the open folder...
2132            Folder openFolder = mWorkspace.getFolderForTag(folderInfo);
2133            int folderScreen;
2134            if (openFolder != null) {
2135                folderScreen = mWorkspace.getPageForView(openFolder);
2136                // .. and close it
2137                closeFolder(openFolder);
2138                if (folderScreen != mWorkspace.getCurrentPage()) {
2139                    // Close any folder open on the current screen
2140                    closeFolder();
2141                    // Pull the folder onto this screen
2142                    openFolder(folderInfo);
2143                }
2144            }
2145        }
2146    }
2147
2148    /**
2149     * Opens the user folder described by the specified tag. The opening of the folder
2150     * is animated relative to the specified View. If the View is null, no animation
2151     * is played.
2152     *
2153     * @param folderInfo The FolderInfo describing the folder to open.
2154     */
2155    public void openFolder(FolderInfo folderInfo) {
2156        Folder openFolder;
2157
2158        if (folderInfo instanceof UserFolderInfo) {
2159            openFolder = UserFolder.fromXml(this);
2160        } else if (folderInfo instanceof LiveFolderInfo) {
2161            openFolder = com.android.launcher2.LiveFolder.fromXml(this, folderInfo);
2162        } else {
2163            return;
2164        }
2165
2166        openFolder.setDragController(mDragController);
2167        openFolder.setLauncher(this);
2168
2169        openFolder.bind(folderInfo);
2170        folderInfo.opened = true;
2171
2172        mWorkspace.addInFullScreen(openFolder, folderInfo.screen);
2173
2174        openFolder.onOpen();
2175    }
2176
2177    public boolean onLongClick(View v) {
2178        switch (v.getId()) {
2179            case R.id.previous_screen:
2180                if (mState != State.ALL_APPS) {
2181                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
2182                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
2183                    showPreviews(v);
2184                }
2185                return true;
2186            case R.id.next_screen:
2187                if (mState != State.ALL_APPS) {
2188                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
2189                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
2190                    showPreviews(v);
2191                }
2192                return true;
2193            case R.id.all_apps_button:
2194                if (mState != State.ALL_APPS) {
2195                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
2196                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
2197                    showPreviews(v);
2198                }
2199                return true;
2200        }
2201
2202        if (isWorkspaceLocked()) {
2203            return false;
2204        }
2205
2206        if (!(v instanceof CellLayout)) {
2207            v = (View) v.getParent().getParent();
2208        }
2209
2210
2211        resetAddInfo();
2212        CellLayout.CellInfo longClickCellInfo = (CellLayout.CellInfo) v.getTag();
2213        // This happens when long clicking an item with the dpad/trackball
2214        if (longClickCellInfo == null || !longClickCellInfo.valid) {
2215            return true;
2216        }
2217
2218        final View itemUnderLongClick = longClickCellInfo.cell;
2219
2220        if (mWorkspace.allowLongPress() && !mDragController.isDragging()) {
2221            if (itemUnderLongClick == null) {
2222                // User long pressed on empty space
2223                mWorkspace.setAllowLongPress(false);
2224                mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
2225                        HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
2226                if (LauncherApplication.isScreenXLarge()) {
2227                    addItems();
2228                } else {
2229                    showAddDialog(longClickCellInfo.cellX, longClickCellInfo.cellY);
2230                }
2231            } else {
2232                if (!(itemUnderLongClick instanceof Folder)) {
2233                    // User long pressed on an item
2234                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
2235                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
2236                    mAddIntersectCellX = longClickCellInfo.cellX;
2237                    mAddIntersectCellY = longClickCellInfo.cellY;
2238                    mWorkspace.startDrag(longClickCellInfo);
2239                }
2240            }
2241        }
2242        return true;
2243    }
2244
2245    @SuppressWarnings({"unchecked"})
2246    private void dismissPreview(final View v) {
2247        final PopupWindow window = (PopupWindow) v.getTag();
2248        if (window != null) {
2249            window.setOnDismissListener(new PopupWindow.OnDismissListener() {
2250                public void onDismiss() {
2251                    ViewGroup group = (ViewGroup) v.getTag(R.id.workspace);
2252                    int count = group.getChildCount();
2253                    for (int i = 0; i < count; i++) {
2254                        ((ImageView) group.getChildAt(i)).setImageDrawable(null);
2255                    }
2256                    ArrayList<Bitmap> bitmaps = (ArrayList<Bitmap>) v.getTag(R.id.icon);
2257                    for (Bitmap bitmap : bitmaps) bitmap.recycle();
2258
2259                    v.setTag(R.id.workspace, null);
2260                    v.setTag(R.id.icon, null);
2261                    window.setOnDismissListener(null);
2262                }
2263            });
2264            window.dismiss();
2265        }
2266        v.setTag(null);
2267    }
2268
2269    private void showPreviews(View anchor) {
2270        showPreviews(anchor, 0, mWorkspace.getChildCount());
2271    }
2272
2273    private void showPreviews(final View anchor, int start, int end) {
2274        final Resources resources = getResources();
2275        final Workspace workspace = mWorkspace;
2276
2277        CellLayout cell = ((CellLayout) workspace.getChildAt(start));
2278
2279        float max = workspace.getChildCount();
2280
2281        final Rect r = new Rect();
2282        resources.getDrawable(R.drawable.preview_background).getPadding(r);
2283        int extraW = (int) ((r.left + r.right) * max);
2284        int extraH = r.top + r.bottom;
2285
2286        int aW = cell.getWidth() - extraW;
2287        float w = aW / max;
2288
2289        int width = cell.getWidth();
2290        int height = cell.getHeight();
2291        int x = cell.getLeftPadding();
2292        int y = cell.getTopPadding();
2293        width -= (x + cell.getRightPadding());
2294        height -= (y + cell.getBottomPadding());
2295
2296        float scale = w / width;
2297
2298        int count = end - start;
2299
2300        final float sWidth = width * scale;
2301        float sHeight = height * scale;
2302
2303        LinearLayout preview = new LinearLayout(this);
2304
2305        PreviewTouchHandler handler = new PreviewTouchHandler(anchor);
2306        ArrayList<Bitmap> bitmaps = new ArrayList<Bitmap>(count);
2307
2308        for (int i = start; i < end; i++) {
2309            ImageView image = new ImageView(this);
2310            cell = (CellLayout) workspace.getChildAt(i);
2311
2312            final Bitmap bitmap = Bitmap.createBitmap((int) sWidth, (int) sHeight,
2313                    Bitmap.Config.ARGB_8888);
2314
2315            final Canvas c = new Canvas(bitmap);
2316            c.scale(scale, scale);
2317            c.translate(-cell.getLeftPadding(), -cell.getTopPadding());
2318            cell.drawChildren(c);
2319
2320            image.setBackgroundDrawable(resources.getDrawable(R.drawable.preview_background));
2321            image.setImageBitmap(bitmap);
2322            image.setTag(i);
2323            image.setOnClickListener(handler);
2324            image.setOnFocusChangeListener(handler);
2325            image.setFocusable(true);
2326            if (i == mWorkspace.getCurrentPage()) image.requestFocus();
2327
2328            preview.addView(image,
2329                    LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
2330
2331            bitmaps.add(bitmap);
2332        }
2333
2334        final PopupWindow p = new PopupWindow(this);
2335        p.setContentView(preview);
2336        p.setWidth((int) (sWidth * count + extraW));
2337        p.setHeight((int) (sHeight + extraH));
2338        p.setAnimationStyle(R.style.AnimationPreview);
2339        p.setOutsideTouchable(true);
2340        p.setFocusable(true);
2341        p.setBackgroundDrawable(new ColorDrawable(0));
2342        p.showAsDropDown(anchor, 0, 0);
2343
2344        p.setOnDismissListener(new PopupWindow.OnDismissListener() {
2345            public void onDismiss() {
2346                dismissPreview(anchor);
2347            }
2348        });
2349
2350        anchor.setTag(p);
2351        anchor.setTag(R.id.workspace, preview);
2352        anchor.setTag(R.id.icon, bitmaps);
2353    }
2354
2355    class PreviewTouchHandler implements View.OnClickListener, Runnable, View.OnFocusChangeListener {
2356        private final View mAnchor;
2357
2358        public PreviewTouchHandler(View anchor) {
2359            mAnchor = anchor;
2360        }
2361
2362        public void onClick(View v) {
2363            mWorkspace.snapToPage((Integer) v.getTag());
2364            v.post(this);
2365        }
2366
2367        public void run() {
2368            dismissPreview(mAnchor);
2369        }
2370
2371        public void onFocusChange(View v, boolean hasFocus) {
2372            if (hasFocus) {
2373                mWorkspace.snapToPage((Integer) v.getTag());
2374            }
2375        }
2376    }
2377
2378    Workspace getWorkspace() {
2379        return mWorkspace;
2380    }
2381
2382    @Override
2383    protected Dialog onCreateDialog(int id) {
2384        switch (id) {
2385            case DIALOG_CREATE_SHORTCUT:
2386                return new CreateShortcut().createDialog();
2387            case DIALOG_RENAME_FOLDER:
2388                return new RenameFolder().createDialog();
2389        }
2390
2391        return super.onCreateDialog(id);
2392    }
2393
2394    @Override
2395    protected void onPrepareDialog(int id, Dialog dialog) {
2396        switch (id) {
2397            case DIALOG_CREATE_SHORTCUT:
2398                break;
2399            case DIALOG_RENAME_FOLDER:
2400                if (mFolderInfo != null) {
2401                    EditText input = (EditText) dialog.findViewById(R.id.folder_name);
2402                    final CharSequence text = mFolderInfo.title;
2403                    input.setText(text);
2404                    input.setSelection(0, text.length());
2405                }
2406                break;
2407        }
2408    }
2409
2410    void showRenameDialog(FolderInfo info) {
2411        mFolderInfo = info;
2412        mWaitingForResult = true;
2413        showDialog(DIALOG_RENAME_FOLDER);
2414    }
2415
2416    private void showAddDialog(int intersectX, int intersectY) {
2417        resetAddInfo();
2418        mAddIntersectCellX = intersectX;
2419        mAddIntersectCellY = intersectY;
2420        mAddScreen = mWorkspace.getCurrentPage();
2421        mWaitingForResult = true;
2422        showDialog(DIALOG_CREATE_SHORTCUT);
2423    }
2424
2425    private void pickShortcut() {
2426        // Insert extra item to handle picking application
2427        Bundle bundle = new Bundle();
2428
2429        ArrayList<String> shortcutNames = new ArrayList<String>();
2430        shortcutNames.add(getString(R.string.group_applications));
2431        bundle.putStringArrayList(Intent.EXTRA_SHORTCUT_NAME, shortcutNames);
2432
2433        ArrayList<ShortcutIconResource> shortcutIcons = new ArrayList<ShortcutIconResource>();
2434        shortcutIcons.add(ShortcutIconResource.fromContext(Launcher.this,
2435                        R.drawable.ic_launcher_application));
2436        bundle.putParcelableArrayList(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, shortcutIcons);
2437
2438        Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
2439        pickIntent.putExtra(Intent.EXTRA_INTENT, new Intent(Intent.ACTION_CREATE_SHORTCUT));
2440        pickIntent.putExtra(Intent.EXTRA_TITLE, getText(R.string.title_select_shortcut));
2441        pickIntent.putExtras(bundle);
2442
2443        startActivityForResult(pickIntent, REQUEST_PICK_SHORTCUT);
2444    }
2445
2446    private class RenameFolder {
2447        private EditText mInput;
2448
2449        Dialog createDialog() {
2450            final View layout = View.inflate(Launcher.this, R.layout.rename_folder, null);
2451            mInput = (EditText) layout.findViewById(R.id.folder_name);
2452
2453            AlertDialog.Builder builder = new AlertDialog.Builder(Launcher.this);
2454            builder.setIcon(0);
2455            builder.setTitle(getString(R.string.rename_folder_title));
2456            builder.setCancelable(true);
2457            builder.setOnCancelListener(new Dialog.OnCancelListener() {
2458                public void onCancel(DialogInterface dialog) {
2459                    cleanup();
2460                }
2461            });
2462            builder.setNegativeButton(getString(R.string.cancel_action),
2463                new Dialog.OnClickListener() {
2464                    public void onClick(DialogInterface dialog, int which) {
2465                        cleanup();
2466                    }
2467                }
2468            );
2469            builder.setPositiveButton(getString(R.string.rename_action),
2470                new Dialog.OnClickListener() {
2471                    public void onClick(DialogInterface dialog, int which) {
2472                        changeFolderName();
2473                    }
2474                }
2475            );
2476            builder.setView(layout);
2477
2478            final AlertDialog dialog = builder.create();
2479            dialog.setOnShowListener(new DialogInterface.OnShowListener() {
2480                public void onShow(DialogInterface dialog) {
2481                    mWaitingForResult = true;
2482                    mInput.requestFocus();
2483                    InputMethodManager inputManager = (InputMethodManager)
2484                            getSystemService(Context.INPUT_METHOD_SERVICE);
2485                    inputManager.showSoftInput(mInput, 0);
2486                }
2487            });
2488
2489            return dialog;
2490        }
2491
2492        private void changeFolderName() {
2493            final String name = mInput.getText().toString();
2494            if (!TextUtils.isEmpty(name)) {
2495                // Make sure we have the right folder info
2496                mFolderInfo = sFolders.get(mFolderInfo.id);
2497                mFolderInfo.title = name;
2498                LauncherModel.updateItemInDatabase(Launcher.this, mFolderInfo);
2499
2500                if (mWorkspaceLoading) {
2501                    lockAllApps();
2502                    mModel.startLoader(Launcher.this, false);
2503                } else {
2504                    final FolderIcon folderIcon = (FolderIcon)
2505                            mWorkspace.getViewForTag(mFolderInfo);
2506                    if (folderIcon != null) {
2507                        folderIcon.setText(name);
2508                        getWorkspace().requestLayout();
2509                    } else {
2510                        lockAllApps();
2511                        mWorkspaceLoading = true;
2512                        mModel.startLoader(Launcher.this, false);
2513                    }
2514                }
2515            }
2516            cleanup();
2517        }
2518
2519        private void cleanup() {
2520            dismissDialog(DIALOG_RENAME_FOLDER);
2521            mWaitingForResult = false;
2522            mFolderInfo = null;
2523        }
2524    }
2525
2526    // Now a part of LauncherModel.Callbacks. Used to reorder loading steps.
2527    public boolean isAllAppsVisible() {
2528        return mState == State.ALL_APPS;
2529    }
2530
2531    // AllAppsView.Watcher
2532    public void zoomed(float zoom) {
2533        // In XLarge view, we zoom down the workspace below all apps so it's still visible
2534        if (zoom == 1.0f && !LauncherApplication.isScreenXLarge()) {
2535            mWorkspace.setVisibility(View.GONE);
2536        }
2537    }
2538
2539    private void showToolbarButton(View button) {
2540        button.setAlpha(1.0f);
2541        button.setVisibility(View.VISIBLE);
2542        button.setFocusable(true);
2543        button.setClickable(true);
2544    }
2545
2546    private void hideToolbarButton(View button) {
2547        button.setAlpha(0.0f);
2548        // We can't set it to GONE, otherwise the RelativeLayout gets screwed up
2549        button.setVisibility(View.INVISIBLE);
2550        button.setFocusable(false);
2551        button.setClickable(false);
2552    }
2553
2554    /**
2555     * Helper function for showing or hiding a toolbar button, possibly animated.
2556     *
2557     * @param show If true, create an animation to the show the item. Otherwise, hide it.
2558     * @param view The toolbar button to be animated
2559     * @param seq A AnimatorSet that will be used to animate the transition. If null, the
2560     * transition will not be animated.
2561     */
2562    private void hideOrShowToolbarButton(boolean show, final View view, AnimatorSet seq) {
2563        final boolean showing = show;
2564        final boolean hiding = !show;
2565
2566        final int duration = show ?
2567                getResources().getInteger(R.integer.config_toolbarButtonFadeInTime) :
2568                getResources().getInteger(R.integer.config_toolbarButtonFadeOutTime);
2569
2570        if (seq != null) {
2571            Animator anim = ObjectAnimator.ofFloat(view, "alpha", show ? 1.0f : 0.0f);
2572            anim.setDuration(duration);
2573            anim.addListener(new AnimatorListenerAdapter() {
2574                @Override
2575                public void onAnimationStart(Animator animation) {
2576                    if (showing) showToolbarButton(view);
2577                }
2578                @Override
2579                public void onAnimationEnd(Animator animation) {
2580                    if (hiding) hideToolbarButton(view);
2581                }
2582            });
2583            seq.play(anim);
2584        } else {
2585            if (showing) {
2586                showToolbarButton(view);
2587            } else {
2588                hideToolbarButton(view);
2589            }
2590        }
2591    }
2592
2593    /**
2594     * Show/hide the appropriate toolbar buttons for newState.
2595     * If showSeq or hideSeq is null, the transition will be done immediately (not animated).
2596     *
2597     * @param newState The state that is being switched to
2598     * @param showSeq AnimatorSet in which to put "show" animations, or null.
2599     * @param hideSeq AnimatorSet in which to put "hide" animations, or null.
2600     */
2601    private void hideAndShowToolbarButtons(State newState, AnimatorSet showSeq, AnimatorSet hideSeq) {
2602        final View buttonCluster = findViewById(R.id.all_apps_button_cluster);
2603
2604        final View allAppsButton = findViewById(R.id.all_apps_button);
2605        final View divider = findViewById(R.id.divider);
2606        final View configureButton = findViewById(R.id.configure_button);
2607
2608        switch (newState) {
2609        case WORKSPACE:
2610            hideOrShowToolbarButton(true, buttonCluster, showSeq);
2611            mDeleteZone.setOverlappingViews(new View[] { allAppsButton, divider, configureButton });
2612            mDeleteZone.setDragAndDropEnabled(true);
2613            mDeleteZone.setText(getResources().getString(R.string.delete_zone_label_workspace));
2614            break;
2615        case ALL_APPS:
2616            hideOrShowToolbarButton(false, buttonCluster, hideSeq);
2617            mDeleteZone.setDragAndDropEnabled(false);
2618            mDeleteZone.setText(getResources().getString(R.string.delete_zone_label_all_apps));
2619            break;
2620        case CUSTOMIZE:
2621            hideOrShowToolbarButton(false, buttonCluster, hideSeq);
2622            mDeleteZone.setDragAndDropEnabled(false);
2623            break;
2624        }
2625    }
2626
2627    /**
2628     * Helper method for the cameraZoomIn/cameraZoomOut animations
2629     * @param view The view being animated
2630     * @param state The state that we are moving in or out of -- either ALL_APPS or CUSTOMIZE
2631     * @param scaleFactor The scale factor used for the zoom
2632     */
2633    private void setPivotsForZoom(View view, State state, float scaleFactor) {
2634        final int height = view.getHeight();
2635
2636        view.setPivotX(view.getWidth() / 2.0f);
2637        // Set pivotY so that at the starting zoom factor, the view is partially
2638        // visible. Modifying initialHeightFactor changes how much of the view is
2639        // initially showing, and hence the perceived angle from which the view enters.
2640        if (state == State.ALL_APPS) {
2641            final float initialHeightFactor = 0.165f;
2642            view.setPivotY((1 - initialHeightFactor) * height);
2643        } else {
2644            final float initialHeightFactor = 0.2f;
2645            view.setPivotY(-initialHeightFactor * height);
2646        }
2647    }
2648
2649    /**
2650     * Zoom the camera out from the workspace to reveal 'toView'.
2651     * Assumes that the view to show is anchored at either the very top or very bottom
2652     * of the screen.
2653     * @param toState The state to zoom out to. Must be ALL_APPS or CUSTOMIZE.
2654     */
2655    private void cameraZoomOut(State toState, boolean animated) {
2656        final Resources res = getResources();
2657        final boolean toAllApps = (toState == State.ALL_APPS);
2658
2659        final int duration = toAllApps ?
2660                res.getInteger(R.integer.config_allAppsZoomInTime) :
2661                res.getInteger(R.integer.config_customizeZoomInTime);
2662
2663        final float scale = toAllApps ?
2664                (float) res.getInteger(R.integer.config_allAppsZoomScaleFactor) :
2665                (float) res.getInteger(R.integer.config_customizeZoomScaleFactor);
2666
2667        final View toView = toAllApps ? (View) mAllAppsGrid : mHomeCustomizationDrawer;
2668
2669        setPivotsForZoom(toView, toState, scale);
2670
2671        if (toAllApps) {
2672            mWorkspace.shrink(ShrinkState.BOTTOM_HIDDEN, animated);
2673        } else {
2674            mWorkspace.shrink(ShrinkState.TOP, animated);
2675        }
2676
2677        if (animated) {
2678            ValueAnimator scaleAnim = ValueAnimator.ofFloat(0f, 1f).setDuration(duration);
2679            scaleAnim.setInterpolator(new Workspace.ZoomOutInterpolator());
2680            scaleAnim.addUpdateListener(new AnimatorUpdateListener() {
2681                public void onAnimationUpdate(ValueAnimator animation) {
2682                    final float b = (Float) animation.getAnimatedValue();
2683                    final float a = 1f - b;
2684                    ((View) toView.getParent()).fastInvalidate();
2685                    toView.setFastScaleX(a * scale + b * 1f);
2686                    toView.setFastScaleY(a * scale + b * 1f);
2687                }
2688            });
2689
2690            if (toAllApps) {
2691                toView.setAlpha(0f);
2692                ValueAnimator alphaAnim = ValueAnimator.ofFloat(0f, 1f).setDuration(duration);
2693                alphaAnim.setInterpolator(new DecelerateInterpolator(1.0f));
2694                alphaAnim.addUpdateListener(new AnimatorUpdateListener() {
2695                    public void onAnimationUpdate(ValueAnimator animation) {
2696                        final float b = (Float) animation.getAnimatedValue();
2697                        final float a = 1f - b;
2698                        // don't need to invalidate because we do so above
2699                        toView.setFastAlpha(a * 0f + b * 1f);
2700                    }
2701                });
2702                alphaAnim.start();
2703            }
2704
2705            // Only use hardware layers in portrait mode, they don't give any gains in landscape
2706            if (mWorkspace.getWidth() < mWorkspace.getHeight()) {
2707                toView.setLayerType(View.LAYER_TYPE_HARDWARE, null);
2708            }
2709            scaleAnim.addListener(new AnimatorListenerAdapter() {
2710                @Override
2711                public void onAnimationStart(Animator animation) {
2712                    // Prepare the position
2713                    toView.setTranslationX(0.0f);
2714                    toView.setTranslationY(0.0f);
2715                    toView.setVisibility(View.VISIBLE);
2716                    if (!toAllApps) {
2717                        toView.setAlpha(1.0f);
2718                    }
2719                }
2720                @Override
2721                public void onAnimationEnd(Animator animation) {
2722                    // If we don't set the final scale values here, if this animation is cancelled
2723                    // it will have the wrong scale value and subsequent cameraPan animations will
2724                    // not fix that
2725                    toView.setLayerType(View.LAYER_TYPE_NONE, null);
2726                    toView.setScaleX(1.0f);
2727                    toView.setScaleY(1.0f);
2728                }
2729            });
2730
2731            AnimatorSet toolbarHideAnim = new AnimatorSet();
2732            AnimatorSet toolbarShowAnim = new AnimatorSet();
2733            hideAndShowToolbarButtons(toState, toolbarShowAnim, toolbarHideAnim);
2734
2735            // toView should appear right at the end of the workspace shrink animation
2736            final int startDelay = 0;
2737
2738            if (mStateAnimation != null) mStateAnimation.cancel();
2739            mStateAnimation = new AnimatorSet();
2740            mStateAnimation.playTogether(scaleAnim, toolbarHideAnim);
2741            mStateAnimation.play(scaleAnim).after(startDelay);
2742
2743            // Show the new toolbar buttons just as the main animation is ending
2744            final int fadeInTime = res.getInteger(R.integer.config_toolbarButtonFadeInTime);
2745            mStateAnimation.play(toolbarShowAnim).after(duration + startDelay - fadeInTime);
2746            mStateAnimation.start();
2747        } else {
2748            toView.setTranslationX(0.0f);
2749            toView.setTranslationY(0.0f);
2750            toView.setScaleX(1.0f);
2751            toView.setScaleY(1.0f);
2752            toView.setVisibility(View.VISIBLE);
2753            hideAndShowToolbarButtons(toState, null, null);
2754        }
2755    }
2756
2757    /**
2758     * Zoom the camera back into the workspace, hiding 'fromView'.
2759     * This is the opposite of cameraZoomOut.
2760     * @param fromState The current state (must be ALL_APPS or CUSTOMIZE).
2761     * @param animated If true, the transition will be animated.
2762     */
2763    private void cameraZoomIn(State fromState, boolean animated) {
2764        cameraZoomIn(fromState, animated, false);
2765    }
2766
2767    private void cameraZoomIn(State fromState, boolean animated, boolean springLoaded) {
2768        Resources res = getResources();
2769        final boolean fromAllApps = (fromState == State.ALL_APPS);
2770
2771        int duration = fromAllApps ?
2772            res.getInteger(R.integer.config_allAppsZoomOutTime) :
2773            res.getInteger(R.integer.config_customizeZoomOutTime);
2774
2775        final float scaleFactor = fromAllApps ?
2776            (float) res.getInteger(R.integer.config_allAppsZoomScaleFactor) :
2777            (float) res.getInteger(R.integer.config_customizeZoomScaleFactor);
2778
2779        final View fromView = fromAllApps ? (View) mAllAppsGrid : mHomeCustomizationDrawer;
2780
2781        mCustomizePagedView.endChoiceMode();
2782        mAllAppsPagedView.endChoiceMode();
2783
2784        setPivotsForZoom(fromView, fromState, scaleFactor);
2785
2786        if (!springLoaded) {
2787            mWorkspace.unshrink(animated);
2788        }
2789
2790        if (animated) {
2791            if (mStateAnimation != null) mStateAnimation.cancel();
2792            mStateAnimation = new AnimatorSet();
2793
2794            final float oldScaleX = fromView.getScaleX();
2795            final float oldScaleY = fromView.getScaleY();
2796
2797            ValueAnimator scaleAnim = ValueAnimator.ofFloat(0f, 1f).setDuration(duration);
2798            scaleAnim.setInterpolator(new Workspace.ZoomInInterpolator());
2799            scaleAnim.addUpdateListener(new AnimatorUpdateListener() {
2800                public void onAnimationUpdate(ValueAnimator animation) {
2801                    final float b = (Float) animation.getAnimatedValue();
2802                    final float a = 1f - b;
2803                    ((View)fromView.getParent()).fastInvalidate();
2804                    fromView.setFastScaleX(a * oldScaleX + b * scaleFactor);
2805                    fromView.setFastScaleY(a * oldScaleY + b * scaleFactor);
2806                }
2807            });
2808            ValueAnimator alphaAnim = ValueAnimator.ofFloat(0f, 1f);
2809            alphaAnim.setDuration(res.getInteger(R.integer.config_allAppsFadeOutTime));
2810            alphaAnim.setInterpolator(new DecelerateInterpolator(2.0f));
2811            alphaAnim.addUpdateListener(new AnimatorUpdateListener() {
2812                public void onAnimationUpdate(ValueAnimator animation) {
2813                    final float b = (Float) animation.getAnimatedValue();
2814                    final float a = 1f - b;
2815                    // don't need to invalidate because we do so above
2816                    fromView.setFastAlpha(a * 1f + b * 0f);
2817                }
2818            });
2819
2820            fromView.setLayerType(View.LAYER_TYPE_HARDWARE, null);
2821            alphaAnim.addListener(new AnimatorListenerAdapter() {
2822                @Override
2823                public void onAnimationEnd(Animator animation) {
2824                    fromView.setVisibility(View.GONE);
2825                    fromView.setLayerType(View.LAYER_TYPE_NONE, null);
2826                }
2827            });
2828
2829            AnimatorSet toolbarHideAnim = new AnimatorSet();
2830            AnimatorSet toolbarShowAnim = new AnimatorSet();
2831            if (!springLoaded) {
2832                hideAndShowToolbarButtons(State.WORKSPACE, toolbarShowAnim, toolbarHideAnim);
2833            }
2834
2835            mStateAnimation.playTogether(scaleAnim, toolbarHideAnim, alphaAnim);
2836
2837            // Show the new toolbar buttons at the very end of the whole animation
2838            final int fadeInTime = res.getInteger(R.integer.config_toolbarButtonFadeInTime);
2839            final int unshrinkTime = res.getInteger(R.integer.config_workspaceUnshrinkTime);
2840            mStateAnimation.play(toolbarShowAnim).after(unshrinkTime - fadeInTime);
2841            mStateAnimation.start();
2842        } else {
2843            fromView.setVisibility(View.GONE);
2844            if (!springLoaded) {
2845                hideAndShowToolbarButtons(State.WORKSPACE, null, null);
2846            }
2847        }
2848    }
2849
2850    /**
2851     * Pan the camera in the vertical plane between 'fromView' and 'toView'.
2852     * This is the transition used on xlarge screens to go between all apps and
2853     * the home customization drawer.
2854     * @param fromState The view to pan away from. Must be ALL_APPS or CUSTOMIZE.
2855     * @param toState The view to pan into the frame. Must be ALL_APPS or CUSTOMIZE.
2856     * @param animated If true, the transition will be animated.
2857     */
2858    private void cameraPan(State fromState, State toState, boolean animated) {
2859        final Resources res = getResources();
2860        final int duration = res.getInteger(R.integer.config_allAppsCameraPanTime);
2861        final int workspaceHeight = mWorkspace.getHeight();
2862
2863        final boolean fromAllApps = (fromState == State.ALL_APPS);
2864        final View fromView = fromAllApps ? (View) mAllAppsGrid : mHomeCustomizationDrawer;
2865        final View toView = fromAllApps ? mHomeCustomizationDrawer : (View) mAllAppsGrid;
2866
2867        final float fromViewStartY = fromAllApps ? 0.0f : fromView.getY();
2868        final float fromViewEndY = fromAllApps ? -fromView.getHeight() * 2 : workspaceHeight * 2;
2869        final float toViewStartY = fromAllApps ? workspaceHeight * 2 : -toView.getHeight() * 2;
2870        final float toViewEndY = fromAllApps ? workspaceHeight - toView.getHeight() : 0.0f;
2871
2872        mCustomizePagedView.endChoiceMode();
2873        mAllAppsPagedView.endChoiceMode();
2874
2875        if (toState == State.ALL_APPS) {
2876            mWorkspace.shrink(Workspace.ShrinkState.BOTTOM_HIDDEN, animated);
2877        } else {
2878            mWorkspace.shrink(Workspace.ShrinkState.TOP, animated);
2879        }
2880
2881        if (animated) {
2882            if (mStateAnimation != null) mStateAnimation.cancel();
2883            mStateAnimation = new AnimatorSet();
2884            mStateAnimation.addListener(new AnimatorListenerAdapter() {
2885                @Override
2886                public void onAnimationStart(Animator animation) {
2887                    toView.setVisibility(View.VISIBLE);
2888                    toView.setY(toViewStartY);
2889                    toView.setAlpha(1.0f);
2890                }
2891                @Override
2892                public void onAnimationEnd(Animator animation) {
2893                    fromView.setVisibility(View.GONE);
2894                }
2895            });
2896
2897            AnimatorSet toolbarHideAnim = new AnimatorSet();
2898            AnimatorSet toolbarShowAnim = new AnimatorSet();
2899            hideAndShowToolbarButtons(toState, toolbarShowAnim, toolbarHideAnim);
2900
2901            ObjectAnimator fromAnim = ObjectAnimator.ofFloat(fromView, "y",
2902                    fromViewStartY, fromViewEndY);
2903            fromAnim.setDuration(duration);
2904            ObjectAnimator toAnim = ObjectAnimator.ofPropertyValuesHolder(toView,
2905                    PropertyValuesHolder.ofFloat("y", toViewStartY, toViewEndY),
2906                    PropertyValuesHolder.ofFloat("scaleX", toView.getScaleX(), 1.0f),
2907                    PropertyValuesHolder.ofFloat("scaleY", toView.getScaleY(), 1.0f)
2908                    );
2909            fromAnim.setDuration(duration);
2910            mStateAnimation.playTogether(toolbarHideAnim, fromAnim, toAnim);
2911
2912            // Show the new toolbar buttons just as the main animation is ending
2913            final int fadeInTime = res.getInteger(R.integer.config_toolbarButtonFadeInTime);
2914            mStateAnimation.play(toolbarShowAnim).after(duration - fadeInTime);
2915            mStateAnimation.start();
2916        } else {
2917            fromView.setY(fromViewEndY);
2918            fromView.setVisibility(View.GONE);
2919            toView.setY(toViewEndY);
2920            toView.setScaleX(1.0f);
2921            toView.setScaleY(1.0f);
2922            toView.setVisibility(View.VISIBLE);
2923            hideAndShowToolbarButtons(toState, null, null);
2924        }
2925    }
2926
2927    void showAllApps(boolean animated) {
2928        if (mState == State.ALL_APPS) {
2929            return;
2930        }
2931
2932        if (LauncherApplication.isScreenXLarge()) {
2933            if (mState == State.CUSTOMIZE) {
2934                cameraPan(State.CUSTOMIZE, State.ALL_APPS, animated);
2935            } else {
2936                cameraZoomOut(State.ALL_APPS, animated);
2937            }
2938        } else {
2939            mAllAppsGrid.zoom(1.0f, animated);
2940        }
2941
2942        ((View) mAllAppsGrid).setFocusable(true);
2943        ((View) mAllAppsGrid).requestFocus();
2944
2945        // TODO: fade these two too
2946        mDeleteZone.setVisibility(View.GONE);
2947
2948        // Change the state *after* we've called all the transition code
2949        mState = State.ALL_APPS;
2950
2951        // Pause the auto-advance of widgets until we are out of AllApps
2952        mUserPresent = false;
2953        updateRunning();
2954
2955        // send an accessibility event to announce the context change
2956        getWindow().getDecorView().sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_SELECTED);
2957    }
2958
2959    void showWorkspace(boolean animated) {
2960        showWorkspace(animated, null);
2961    }
2962
2963    void showWorkspace(boolean animated, CellLayout layout) {
2964        if (layout != null) {
2965            // always animated, but that's ok since we never specify a layout and
2966            // want no animation
2967            mWorkspace.unshrink(layout);
2968        } else {
2969            mWorkspace.unshrink(animated);
2970        }
2971        if (mState == State.ALL_APPS) {
2972            closeAllApps(animated);
2973        } else if (mState == State.CUSTOMIZE) {
2974            hideCustomizationDrawer(animated);
2975        }
2976
2977        // Change the state *after* we've called all the transition code
2978        mState = State.WORKSPACE;
2979
2980        // Resume the auto-advance of widgets
2981        mUserPresent = true;
2982        updateRunning();
2983
2984        // send an accessibility event to announce the context change
2985        getWindow().getDecorView().sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_SELECTED);
2986    }
2987
2988    void enterSpringLoadedDragMode(CellLayout layout) {
2989        mWorkspace.enterSpringLoadedDragMode(layout);
2990        if (mState == State.ALL_APPS) {
2991            cameraZoomIn(State.ALL_APPS, true, true);
2992            mState = State.ALL_APPS_SPRING_LOADED;
2993        } else if (mState == State.CUSTOMIZE) {
2994            cameraZoomIn(State.CUSTOMIZE, true, true);
2995            mState = State.CUSTOMIZE_SPRING_LOADED;
2996        }/* else {
2997            // we're already in spring loaded mode; don't do anything
2998        }*/
2999    }
3000
3001    void exitSpringLoadedDragMode() {
3002        if (mState == State.ALL_APPS_SPRING_LOADED) {
3003            mWorkspace.exitSpringLoadedDragMode(Workspace.ShrinkState.BOTTOM_VISIBLE);
3004            cameraZoomOut(State.ALL_APPS, true);
3005            mState = State.ALL_APPS;
3006        } else if (mState == State.CUSTOMIZE_SPRING_LOADED) {
3007            mWorkspace.exitSpringLoadedDragMode(Workspace.ShrinkState.TOP);
3008            cameraZoomOut(State.CUSTOMIZE, true);
3009            mState = State.CUSTOMIZE;
3010        }/* else {
3011            // we're not in spring loaded mode; don't do anything
3012        }*/
3013    }
3014
3015    /**
3016     * Things to test when changing this code.
3017     *   - Home from workspace
3018     *          - from center screen
3019     *          - from other screens
3020     *   - Home from all apps
3021     *          - from center screen
3022     *          - from other screens
3023     *   - Back from all apps
3024     *          - from center screen
3025     *          - from other screens
3026     *   - Launch app from workspace and quit
3027     *          - with back
3028     *          - with home
3029     *   - Launch app from all apps and quit
3030     *          - with back
3031     *          - with home
3032     *   - Go to a screen that's not the default, then all
3033     *     apps, and launch and app, and go back
3034     *          - with back
3035     *          -with home
3036     *   - On workspace, long press power and go back
3037     *          - with back
3038     *          - with home
3039     *   - On all apps, long press power and go back
3040     *          - with back
3041     *          - with home
3042     *   - On workspace, power off
3043     *   - On all apps, power off
3044     *   - Launch an app and turn off the screen while in that app
3045     *          - Go back with home key
3046     *          - Go back with back key  TODO: make this not go to workspace
3047     *          - From all apps
3048     *          - From workspace
3049     *   - Enter and exit car mode (becuase it causes an extra configuration changed)
3050     *          - From all apps
3051     *          - From the center workspace
3052     *          - From another workspace
3053     */
3054    void closeAllApps(boolean animated) {
3055        if (mState == State.ALL_APPS || mState == State.ALL_APPS_SPRING_LOADED) {
3056            mWorkspace.setVisibility(View.VISIBLE);
3057            if (LauncherApplication.isScreenXLarge()) {
3058                cameraZoomIn(State.ALL_APPS, animated);
3059            } else {
3060                mAllAppsGrid.zoom(0.0f, animated);
3061            }
3062            ((View)mAllAppsGrid).setFocusable(false);
3063            mWorkspace.getChildAt(mWorkspace.getCurrentPage()).requestFocus();
3064        }
3065    }
3066
3067    void lockAllApps() {
3068        // TODO
3069    }
3070
3071    void unlockAllApps() {
3072        // TODO
3073    }
3074
3075    // Show the customization drawer (only exists in x-large configuration)
3076    private void showCustomizationDrawer(boolean animated) {
3077        if (mState == State.ALL_APPS) {
3078            cameraPan(State.ALL_APPS, State.CUSTOMIZE, animated);
3079        } else {
3080            cameraZoomOut(State.CUSTOMIZE, animated);
3081        }
3082        // Change the state *after* we've called all the transition code
3083        mState = State.CUSTOMIZE;
3084
3085        // Pause the auto-advance of widgets until we are out of Customization drawer
3086        mUserPresent = false;
3087        updateRunning();
3088    }
3089
3090    // Hide the customization drawer (only exists in x-large configuration)
3091    void hideCustomizationDrawer(boolean animated) {
3092        if (mState == State.CUSTOMIZE || mState == State.CUSTOMIZE_SPRING_LOADED) {
3093            cameraZoomIn(State.CUSTOMIZE, animated);
3094        }
3095    }
3096
3097    void addExternalItemToScreen(ItemInfo itemInfo, CellLayout layout) {
3098        if (!mWorkspace.addExternalItemToScreen(itemInfo, layout)) {
3099            showOutOfSpaceMessage();
3100        }
3101    }
3102
3103    void onWorkspaceClick(CellLayout layout) {
3104        showWorkspace(true, layout);
3105    }
3106
3107    // if successful in getting icon, return it; otherwise, set button to use default drawable
3108    private Drawable.ConstantState updateButtonWithIconFromExternalActivity(
3109            int buttonId, ComponentName activityName, int fallbackDrawableId) {
3110        ImageView button = (ImageView) findViewById(buttonId);
3111        Drawable toolbarIcon = null;
3112        try {
3113            PackageManager packageManager = getPackageManager();
3114            // Look for the toolbar icon specified in the activity meta-data
3115            Bundle metaData = packageManager.getActivityInfo(
3116                    activityName, PackageManager.GET_META_DATA).metaData;
3117            if (metaData != null) {
3118                int iconResId = metaData.getInt(TOOLBAR_ICON_METADATA_NAME);
3119                if (iconResId != 0) {
3120                    Resources res = packageManager.getResourcesForActivity(activityName);
3121                    toolbarIcon = res.getDrawable(iconResId);
3122                }
3123            }
3124        } catch (NameNotFoundException e) {
3125            // Do nothing
3126        }
3127        // If we were unable to find the icon via the meta-data, use a generic one
3128        if (toolbarIcon == null) {
3129            button.setImageResource(fallbackDrawableId);
3130            return null;
3131        } else {
3132            button.setImageDrawable(toolbarIcon);
3133            return toolbarIcon.getConstantState();
3134        }
3135    }
3136
3137    private void updateButtonWithDrawable(int buttonId, Drawable.ConstantState d) {
3138        ImageView button = (ImageView) findViewById(buttonId);
3139        button.setImageDrawable(d.newDrawable(getResources()));
3140    }
3141
3142    private void updateGlobalSearchIcon() {
3143        if (LauncherApplication.isScreenXLarge()) {
3144            final SearchManager searchManager =
3145                    (SearchManager) getSystemService(Context.SEARCH_SERVICE);
3146            ComponentName activityName = searchManager.getGlobalSearchActivity();
3147            if (activityName != null) {
3148                sGlobalSearchIcon = updateButtonWithIconFromExternalActivity(
3149                        R.id.search_button, activityName, R.drawable.ic_generic_search);
3150            } else {
3151                findViewById(R.id.search_button).setVisibility(View.GONE);
3152            }
3153        }
3154    }
3155
3156    private void updateGlobalSearchIcon(Drawable.ConstantState d) {
3157        updateButtonWithDrawable(R.id.search_button, d);
3158    }
3159
3160    private void updateVoiceSearchIcon() {
3161        if (LauncherApplication.isScreenXLarge()) {
3162            Intent intent = new Intent(RecognizerIntent.ACTION_WEB_SEARCH);
3163            ComponentName activityName = intent.resolveActivity(getPackageManager());
3164            if (activityName != null) {
3165                sVoiceSearchIcon = updateButtonWithIconFromExternalActivity(
3166                        R.id.voice_button, activityName, R.drawable.ic_voice_search);
3167            } else {
3168                findViewById(R.id.voice_button).setVisibility(View.GONE);
3169            }
3170        }
3171    }
3172
3173    private void updateVoiceSearchIcon(Drawable.ConstantState d) {
3174        updateButtonWithDrawable(R.id.voice_button, d);
3175    }
3176
3177    /**
3178     * Sets the app market icon (shown when all apps is visible on x-large screens)
3179     */
3180    private void updateAppMarketIcon() {
3181        if (LauncherApplication.isScreenXLarge()) {
3182            Intent intent = new Intent(Intent.ACTION_MAIN).addCategory(Intent.CATEGORY_APP_MARKET);
3183            // Find the app market activity by resolving an intent.
3184            // (If multiple app markets are installed, it will return the ResolverActivity.)
3185            ComponentName activityName = intent.resolveActivity(getPackageManager());
3186            if (activityName != null) {
3187                mAppMarketIntent = intent;
3188                sAppMarketIcon = updateButtonWithIconFromExternalActivity(
3189                        R.id.market_button, activityName, R.drawable.app_market_generic);
3190            }
3191        }
3192    }
3193
3194    private void updateAppMarketIcon(Drawable.ConstantState d) {
3195        updateButtonWithDrawable(R.id.market_button, d);
3196    }
3197
3198    /**
3199     * Displays the shortcut creation dialog and launches, if necessary, the
3200     * appropriate activity.
3201     */
3202    private class CreateShortcut implements DialogInterface.OnClickListener,
3203            DialogInterface.OnCancelListener, DialogInterface.OnDismissListener,
3204            DialogInterface.OnShowListener {
3205
3206        private AddAdapter mAdapter;
3207
3208        Dialog createDialog() {
3209            mAdapter = new AddAdapter(Launcher.this);
3210
3211            final AlertDialog.Builder builder = new AlertDialog.Builder(Launcher.this);
3212            builder.setTitle(getString(R.string.menu_item_add_item));
3213            builder.setAdapter(mAdapter, this);
3214
3215            builder.setInverseBackgroundForced(true);
3216
3217            AlertDialog dialog = builder.create();
3218            dialog.setOnCancelListener(this);
3219            dialog.setOnDismissListener(this);
3220            dialog.setOnShowListener(this);
3221
3222            return dialog;
3223        }
3224
3225        public void onCancel(DialogInterface dialog) {
3226            mWaitingForResult = false;
3227            cleanup();
3228        }
3229
3230        public void onDismiss(DialogInterface dialog) {
3231        }
3232
3233        private void cleanup() {
3234            try {
3235                dismissDialog(DIALOG_CREATE_SHORTCUT);
3236            } catch (Exception e) {
3237                // An exception is thrown if the dialog is not visible, which is fine
3238            }
3239        }
3240
3241        /**
3242         * Handle the action clicked in the "Add to home" dialog.
3243         */
3244        public void onClick(DialogInterface dialog, int which) {
3245            Resources res = getResources();
3246            cleanup();
3247
3248            switch (which) {
3249                case AddAdapter.ITEM_SHORTCUT: {
3250                    pickShortcut();
3251                    break;
3252                }
3253
3254                case AddAdapter.ITEM_APPWIDGET: {
3255                    int appWidgetId = Launcher.this.mAppWidgetHost.allocateAppWidgetId();
3256
3257                    Intent pickIntent = new Intent(AppWidgetManager.ACTION_APPWIDGET_PICK);
3258                    pickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
3259                    // start the pick activity
3260                    startActivityForResult(pickIntent, REQUEST_PICK_APPWIDGET);
3261                    break;
3262                }
3263
3264                case AddAdapter.ITEM_LIVE_FOLDER: {
3265                    // Insert extra item to handle inserting folder
3266                    Bundle bundle = new Bundle();
3267
3268                    ArrayList<String> shortcutNames = new ArrayList<String>();
3269                    shortcutNames.add(res.getString(R.string.group_folder));
3270                    bundle.putStringArrayList(Intent.EXTRA_SHORTCUT_NAME, shortcutNames);
3271
3272                    ArrayList<ShortcutIconResource> shortcutIcons =
3273                            new ArrayList<ShortcutIconResource>();
3274                    shortcutIcons.add(ShortcutIconResource.fromContext(Launcher.this,
3275                            R.drawable.ic_launcher_folder));
3276                    bundle.putParcelableArrayList(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, shortcutIcons);
3277
3278                    Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
3279                    pickIntent.putExtra(Intent.EXTRA_INTENT,
3280                            new Intent(LiveFolders.ACTION_CREATE_LIVE_FOLDER));
3281                    pickIntent.putExtra(Intent.EXTRA_TITLE,
3282                            getText(R.string.title_select_live_folder));
3283                    pickIntent.putExtras(bundle);
3284
3285                    startActivityForResult(pickIntent, REQUEST_PICK_LIVE_FOLDER);
3286                    break;
3287                }
3288
3289                case AddAdapter.ITEM_WALLPAPER: {
3290                    startWallpaper();
3291                    break;
3292                }
3293            }
3294        }
3295
3296        public void onShow(DialogInterface dialog) {
3297            mWaitingForResult = true;
3298        }
3299    }
3300
3301    /**
3302     * Receives notifications when applications are added/removed.
3303     */
3304    private class CloseSystemDialogsIntentReceiver extends BroadcastReceiver {
3305        @Override
3306        public void onReceive(Context context, Intent intent) {
3307            closeSystemDialogs();
3308            String reason = intent.getStringExtra("reason");
3309            if (!"homekey".equals(reason)) {
3310                boolean animate = true;
3311                if (mPaused || "lock".equals(reason)) {
3312                    animate = false;
3313                }
3314                showWorkspace(animate);
3315            }
3316        }
3317    }
3318
3319    /**
3320     * Receives notifications whenever the appwidgets are reset.
3321     */
3322    private class AppWidgetResetObserver extends ContentObserver {
3323        public AppWidgetResetObserver() {
3324            super(new Handler());
3325        }
3326
3327        @Override
3328        public void onChange(boolean selfChange) {
3329            onAppWidgetReset();
3330        }
3331    }
3332
3333    /**
3334     * If the activity is currently paused, signal that we need to re-run the loader
3335     * in onResume.
3336     *
3337     * This needs to be called from incoming places where resources might have been loaded
3338     * while we are paused.  That is becaues the Configuration might be wrong
3339     * when we're not running, and if it comes back to what it was when we
3340     * were paused, we are not restarted.
3341     *
3342     * Implementation of the method from LauncherModel.Callbacks.
3343     *
3344     * @return true if we are currently paused.  The caller might be able to
3345     * skip some work in that case since we will come back again.
3346     */
3347    public boolean setLoadOnResume() {
3348        if (mPaused) {
3349            Log.i(TAG, "setLoadOnResume");
3350            mOnResumeNeedsLoad = true;
3351            return true;
3352        } else {
3353            return false;
3354        }
3355    }
3356
3357    /**
3358     * Implementation of the method from LauncherModel.Callbacks.
3359     */
3360    public int getCurrentWorkspaceScreen() {
3361        if (mWorkspace != null) {
3362            return mWorkspace.getCurrentPage();
3363        } else {
3364            return SCREEN_COUNT / 2;
3365        }
3366    }
3367
3368    void setAllAppsPagedView(AllAppsPagedView view) {
3369        mAllAppsPagedView = view;
3370    }
3371
3372    /**
3373     * Refreshes the shortcuts shown on the workspace.
3374     *
3375     * Implementation of the method from LauncherModel.Callbacks.
3376     */
3377    public void startBinding() {
3378        final Workspace workspace = mWorkspace;
3379        int count = workspace.getChildCount();
3380        for (int i = 0; i < count; i++) {
3381            // Use removeAllViewsInLayout() to avoid an extra requestLayout() and invalidate().
3382            final CellLayout layoutParent = (CellLayout) workspace.getChildAt(i);
3383            layoutParent.removeAllViewsInLayout();
3384        }
3385
3386        if (DEBUG_USER_INTERFACE) {
3387            android.widget.Button finishButton = new android.widget.Button(this);
3388            finishButton.setText("Finish");
3389            workspace.addInScreen(finishButton, 1, 0, 0, 1, 1);
3390
3391            finishButton.setOnClickListener(new android.widget.Button.OnClickListener() {
3392                public void onClick(View v) {
3393                    finish();
3394                }
3395            });
3396        }
3397
3398        // This wasn't being called before which resulted in a leak of AppWidgetHostViews (through
3399        // mDesktopItems -> AppWidgetInfo -> hostView).
3400        unbindDesktopItems();
3401    }
3402
3403    /**
3404     * Bind the items start-end from the list.
3405     *
3406     * Implementation of the method from LauncherModel.Callbacks.
3407     */
3408    public void bindItems(ArrayList<ItemInfo> shortcuts, int start, int end) {
3409
3410        setLoadOnResume();
3411
3412        final Workspace workspace = mWorkspace;
3413
3414        for (int i=start; i<end; i++) {
3415            final ItemInfo item = shortcuts.get(i);
3416            mDesktopItems.add(item);
3417            switch (item.itemType) {
3418                case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
3419                case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
3420                    final View shortcut = createShortcut((ShortcutInfo)item);
3421                    workspace.addInScreen(shortcut, item.screen, item.cellX, item.cellY, 1, 1,
3422                            false);
3423                    break;
3424                case LauncherSettings.Favorites.ITEM_TYPE_USER_FOLDER:
3425                    final FolderIcon newFolder = FolderIcon.fromXml(R.layout.folder_icon, this,
3426                            (ViewGroup) workspace.getChildAt(workspace.getCurrentPage()),
3427                            (UserFolderInfo) item, mIconCache);
3428                    workspace.addInScreen(newFolder, item.screen, item.cellX, item.cellY, 1, 1,
3429                            false);
3430                    break;
3431                case LauncherSettings.Favorites.ITEM_TYPE_LIVE_FOLDER:
3432                    final FolderIcon newLiveFolder = LiveFolderIcon.fromXml(
3433                            R.layout.live_folder_icon, this,
3434                            (ViewGroup) workspace.getChildAt(workspace.getCurrentPage()),
3435                            (LiveFolderInfo) item);
3436                    workspace.addInScreen(newLiveFolder, item.screen, item.cellX, item.cellY, 1, 1,
3437                            false);
3438                    break;
3439            }
3440        }
3441
3442        workspace.requestLayout();
3443    }
3444
3445    /**
3446     * Implementation of the method from LauncherModel.Callbacks.
3447     */
3448    public void bindFolders(HashMap<Long, FolderInfo> folders) {
3449        setLoadOnResume();
3450        sFolders.clear();
3451        sFolders.putAll(folders);
3452    }
3453
3454    /**
3455     * Add the views for a widget to the workspace.
3456     *
3457     * Implementation of the method from LauncherModel.Callbacks.
3458     */
3459    public void bindAppWidget(LauncherAppWidgetInfo item) {
3460        setLoadOnResume();
3461
3462        final long start = DEBUG_WIDGETS ? SystemClock.uptimeMillis() : 0;
3463        if (DEBUG_WIDGETS) {
3464            Log.d(TAG, "bindAppWidget: " + item);
3465        }
3466        final Workspace workspace = mWorkspace;
3467
3468        final int appWidgetId = item.appWidgetId;
3469        final AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
3470        if (DEBUG_WIDGETS) {
3471            Log.d(TAG, "bindAppWidget: id=" + item.appWidgetId + " belongs to component " + appWidgetInfo.provider);
3472        }
3473
3474        item.hostView = mAppWidgetHost.createView(this, appWidgetId, appWidgetInfo);
3475
3476        item.hostView.setAppWidget(appWidgetId, appWidgetInfo);
3477        item.hostView.setTag(item);
3478
3479        workspace.addInScreen(item.hostView, item.screen, item.cellX,
3480                item.cellY, item.spanX, item.spanY, false);
3481
3482        addWidgetToAutoAdvanceIfNeeded(item.hostView, appWidgetInfo);
3483
3484        workspace.requestLayout();
3485
3486        mDesktopItems.add(item);
3487
3488        if (DEBUG_WIDGETS) {
3489            Log.d(TAG, "bound widget id="+item.appWidgetId+" in "
3490                    + (SystemClock.uptimeMillis()-start) + "ms");
3491        }
3492    }
3493
3494    /**
3495     * Callback saying that there aren't any more items to bind.
3496     *
3497     * Implementation of the method from LauncherModel.Callbacks.
3498     */
3499    public void finishBindingItems() {
3500        setLoadOnResume();
3501
3502        if (mSavedState != null) {
3503            if (!mWorkspace.hasFocus()) {
3504                mWorkspace.getChildAt(mWorkspace.getCurrentPage()).requestFocus();
3505            }
3506
3507            final long[] userFolders = mSavedState.getLongArray(RUNTIME_STATE_USER_FOLDERS);
3508            if (userFolders != null) {
3509                for (long folderId : userFolders) {
3510                    final FolderInfo info = sFolders.get(folderId);
3511                    if (info != null) {
3512                        openFolder(info);
3513                    }
3514                }
3515                final Folder openFolder = mWorkspace.getOpenFolder();
3516                if (openFolder != null) {
3517                    openFolder.requestFocus();
3518                }
3519            }
3520
3521            mSavedState = null;
3522        }
3523
3524        if (mSavedInstanceState != null) {
3525            super.onRestoreInstanceState(mSavedInstanceState);
3526            mSavedInstanceState = null;
3527        }
3528
3529        // Workaround a bug that occurs when rotating the device while the customization mode is
3530        // open, we trigger a new layout on all the CellLayout children.
3531        if (LauncherApplication.isScreenXLarge() && (mState == State.CUSTOMIZE)) {
3532            final int childCount = mWorkspace.getChildCount();
3533            for (int i = 0; i < childCount; ++i) {
3534                mWorkspace.getChildAt(i).requestLayout();
3535            }
3536        }
3537
3538        mWorkspaceLoading = false;
3539    }
3540
3541    /**
3542     * Updates the icons on the launcher that are affected by changes to the package list
3543     * on the device.
3544     */
3545    private void updateIconsAffectedByPackageManagerChanges() {
3546        updateAppMarketIcon();
3547        updateGlobalSearchIcon();
3548        updateVoiceSearchIcon();
3549    }
3550
3551    /**
3552     * Add the icons for all apps.
3553     *
3554     * Implementation of the method from LauncherModel.Callbacks.
3555     */
3556    public void bindAllApplications(ArrayList<ApplicationInfo> apps) {
3557        mAllAppsGrid.setApps(apps);
3558        if (mCustomizePagedView != null) {
3559            mCustomizePagedView.setApps(apps);
3560        }
3561        updateIconsAffectedByPackageManagerChanges();
3562    }
3563
3564    /**
3565     * A package was installed.
3566     *
3567     * Implementation of the method from LauncherModel.Callbacks.
3568     */
3569    public void bindAppsAdded(ArrayList<ApplicationInfo> apps) {
3570        setLoadOnResume();
3571        removeDialog(DIALOG_CREATE_SHORTCUT);
3572        mAllAppsGrid.addApps(apps);
3573        if (mCustomizePagedView != null) {
3574            mCustomizePagedView.addApps(apps);
3575        }
3576        updateIconsAffectedByPackageManagerChanges();
3577    }
3578
3579    /**
3580     * A package was updated.
3581     *
3582     * Implementation of the method from LauncherModel.Callbacks.
3583     */
3584    public void bindAppsUpdated(ArrayList<ApplicationInfo> apps) {
3585        setLoadOnResume();
3586        removeDialog(DIALOG_CREATE_SHORTCUT);
3587        mWorkspace.updateShortcuts(apps);
3588        mAllAppsGrid.updateApps(apps);
3589        if (mCustomizePagedView != null) {
3590            mCustomizePagedView.updateApps(apps);
3591        }
3592        updateIconsAffectedByPackageManagerChanges();
3593    }
3594
3595    /**
3596     * A package was uninstalled.
3597     *
3598     * Implementation of the method from LauncherModel.Callbacks.
3599     */
3600    public void bindAppsRemoved(ArrayList<ApplicationInfo> apps, boolean permanent) {
3601        removeDialog(DIALOG_CREATE_SHORTCUT);
3602        if (permanent) {
3603            mWorkspace.removeItems(apps);
3604        }
3605        mAllAppsGrid.removeApps(apps);
3606        if (mCustomizePagedView != null) {
3607            mCustomizePagedView.removeApps(apps);
3608        }
3609        updateIconsAffectedByPackageManagerChanges();
3610    }
3611
3612    /**
3613     * A number of packages were updated.
3614     */
3615    public void bindPackagesUpdated() {
3616        // update the customization drawer contents
3617        if (mCustomizePagedView != null) {
3618            mCustomizePagedView.update();
3619        }
3620    }
3621
3622    private int mapConfigurationOriActivityInfoOri(int configOri) {
3623        final Display d = getWindowManager().getDefaultDisplay();
3624        int naturalOri = Configuration.ORIENTATION_LANDSCAPE;
3625        switch (d.getRotation()) {
3626        case Surface.ROTATION_0:
3627        case Surface.ROTATION_180:
3628            // We are currently in the same basic orientation as the natural orientation
3629            naturalOri = configOri;
3630            break;
3631        case Surface.ROTATION_90:
3632        case Surface.ROTATION_270:
3633            // We are currently in the other basic orientation to the natural orientation
3634            naturalOri = (configOri == Configuration.ORIENTATION_LANDSCAPE) ?
3635                    Configuration.ORIENTATION_PORTRAIT : Configuration.ORIENTATION_LANDSCAPE;
3636            break;
3637        }
3638
3639        int[] oriMap = {
3640                ActivityInfo.SCREEN_ORIENTATION_PORTRAIT,
3641                ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE,
3642                ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT,
3643                ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE
3644        };
3645        // Since the map starts at portrait, we need to offset if this device's natural orientation
3646        // is landscape.
3647        int indexOffset = 0;
3648        if (naturalOri == Configuration.ORIENTATION_LANDSCAPE) {
3649            indexOffset = 1;
3650        }
3651        return oriMap[(d.getRotation() + indexOffset) % 4];
3652    }
3653    public void lockScreenOrientation() {
3654        setRequestedOrientation(mapConfigurationOriActivityInfoOri(getResources()
3655                .getConfiguration().orientation));
3656    }
3657    public void unlockScreenOrientation() {
3658        mHandler.postDelayed(new Runnable() {
3659            public void run() {
3660                setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
3661            }
3662        }, mRestoreScreenOrientationDelay);
3663    }
3664
3665    /**
3666     * Prints out out state for debugging.
3667     */
3668    public void dumpState() {
3669        Log.d(TAG, "BEGIN launcher2 dump state for launcher " + this);
3670        Log.d(TAG, "mSavedState=" + mSavedState);
3671        Log.d(TAG, "mWorkspaceLoading=" + mWorkspaceLoading);
3672        Log.d(TAG, "mRestoring=" + mRestoring);
3673        Log.d(TAG, "mWaitingForResult=" + mWaitingForResult);
3674        Log.d(TAG, "mSavedInstanceState=" + mSavedInstanceState);
3675        Log.d(TAG, "mDesktopItems.size=" + mDesktopItems.size());
3676        Log.d(TAG, "sFolders.size=" + sFolders.size());
3677        mModel.dumpState();
3678        mAllAppsGrid.dumpState();
3679        Log.d(TAG, "END launcher2 dump state");
3680    }
3681}
3682