Launcher.java revision 32bb5e54b498f721e021fc9ff780280625c3fe28 
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 java.io.DataInputStream;
21import java.io.DataOutputStream;
22import java.io.FileNotFoundException;
23import java.io.IOException;
24import java.util.ArrayList;
25import java.util.HashMap;
26import java.util.List;
27
28import android.animation.Animator;
29import android.animation.AnimatorListenerAdapter;
30import android.animation.AnimatorSet;
31import android.animation.ObjectAnimator;
32import android.animation.PropertyValuesHolder;
33import android.animation.ValueAnimator;
34import android.app.Activity;
35import android.app.AlertDialog;
36import android.app.Dialog;
37import android.app.SearchManager;
38import android.app.StatusBarManager;
39import android.appwidget.AppWidgetManager;
40import android.appwidget.AppWidgetProviderInfo;
41import android.content.ActivityNotFoundException;
42import android.content.BroadcastReceiver;
43import android.content.ClipData;
44import android.content.ClipDescription;
45import android.content.ComponentName;
46import android.content.ContentResolver;
47import android.content.Context;
48import android.content.DialogInterface;
49import android.content.Intent;
50import android.content.IntentFilter;
51import android.content.Intent.ShortcutIconResource;
52import android.content.pm.ActivityInfo;
53import android.content.pm.PackageManager;
54import android.content.pm.ResolveInfo;
55import android.content.pm.PackageManager.NameNotFoundException;
56import android.content.res.Configuration;
57import android.content.res.Resources;
58import android.content.res.TypedArray;
59import android.database.ContentObserver;
60import android.graphics.Bitmap;
61import android.graphics.Canvas;
62import android.graphics.Rect;
63import android.graphics.drawable.ColorDrawable;
64import android.graphics.drawable.Drawable;
65import android.net.Uri;
66import android.os.AsyncTask;
67import android.os.Bundle;
68import android.os.Environment;
69import android.os.Handler;
70import android.os.Message;
71import android.os.Parcelable;
72import android.os.SystemClock;
73import android.os.SystemProperties;
74import android.provider.LiveFolders;
75import android.provider.Settings;
76import android.speech.RecognizerIntent;
77import android.text.Selection;
78import android.text.SpannableStringBuilder;
79import android.text.TextUtils;
80import android.text.method.TextKeyListener;
81import android.util.Log;
82import android.view.Display;
83import android.view.HapticFeedbackConstants;
84import android.view.KeyEvent;
85import android.view.LayoutInflater;
86import android.view.Menu;
87import android.view.MenuItem;
88import android.view.MotionEvent;
89import android.view.Surface;
90import android.view.View;
91import android.view.ViewGroup;
92import android.view.WindowManager;
93import android.view.View.OnLongClickListener;
94import android.view.accessibility.AccessibilityEvent;
95import android.view.animation.DecelerateInterpolator;
96import android.view.inputmethod.InputMethodManager;
97import android.widget.Advanceable;
98import android.widget.EditText;
99import android.widget.ImageView;
100import android.widget.LinearLayout;
101import android.widget.PopupWindow;
102import android.widget.TabHost;
103import android.widget.TabWidget;
104import android.widget.TextView;
105import android.widget.Toast;
106import android.widget.TabHost.OnTabChangeListener;
107import android.widget.TabHost.TabContentFactory;
108
109import com.android.common.Search;
110import com.android.launcher.R;
111import com.android.launcher2.CustomizePagedView.CustomizationType;
112import com.android.launcher2.Workspace.ShrinkState;
113
114
115/**
116 * Default launcher application.
117 */
118public final class Launcher extends Activity
119        implements View.OnClickListener, OnLongClickListener, LauncherModel.Callbacks,
120                   AllAppsView.Watcher, View.OnTouchListener {
121    static final String TAG = "Launcher";
122    static final boolean LOGD = false;
123
124    static final boolean PROFILE_STARTUP = false;
125    static final boolean DEBUG_WIDGETS = false;
126    static final boolean DEBUG_USER_INTERFACE = false;
127
128    private static final int MENU_GROUP_ADD = 1;
129    private static final int MENU_GROUP_WALLPAPER = MENU_GROUP_ADD + 1;
130
131    private static final int MENU_ADD = Menu.FIRST + 1;
132    private static final int MENU_MANAGE_APPS = MENU_ADD + 1;
133    private static final int MENU_WALLPAPER_SETTINGS = MENU_MANAGE_APPS + 1;
134    private static final int MENU_SEARCH = MENU_WALLPAPER_SETTINGS + 1;
135    private static final int MENU_NOTIFICATIONS = MENU_SEARCH + 1;
136    private static final int MENU_SETTINGS = MENU_NOTIFICATIONS + 1;
137
138    private static final int REQUEST_CREATE_SHORTCUT = 1;
139    private static final int REQUEST_CREATE_LIVE_FOLDER = 4;
140    private static final int REQUEST_CREATE_APPWIDGET = 5;
141    private static final int REQUEST_PICK_APPLICATION = 6;
142    private static final int REQUEST_PICK_SHORTCUT = 7;
143    private static final int REQUEST_PICK_LIVE_FOLDER = 8;
144    private static final int REQUEST_PICK_APPWIDGET = 9;
145    private static final int REQUEST_PICK_WALLPAPER = 10;
146
147    static final String EXTRA_SHORTCUT_DUPLICATE = "duplicate";
148
149    static final int SCREEN_COUNT = 5;
150    static final int DEFAULT_SCREEN = 2;
151
152    static final int DIALOG_CREATE_SHORTCUT = 1;
153    static final int DIALOG_RENAME_FOLDER = 2;
154
155    private static final String PREFERENCES = "launcher.preferences";
156
157    // Type: int
158    private static final String RUNTIME_STATE_CURRENT_SCREEN = "launcher.current_screen";
159    // Type: int
160    private static final String RUNTIME_STATE = "launcher.state";
161    // Type: long
162    private static final String RUNTIME_STATE_USER_FOLDERS = "launcher.user_folder";
163    // Type: int
164    private static final String RUNTIME_STATE_PENDING_ADD_SCREEN = "launcher.add_screen";
165    // Type: int
166    private static final String RUNTIME_STATE_PENDING_ADD_CELL_X = "launcher.add_cellX";
167    // Type: int
168    private static final String RUNTIME_STATE_PENDING_ADD_CELL_Y = "launcher.add_cellY";
169    // Type: boolean
170    private static final String RUNTIME_STATE_PENDING_FOLDER_RENAME = "launcher.rename_folder";
171    // Type: long
172    private static final String RUNTIME_STATE_PENDING_FOLDER_RENAME_ID = "launcher.rename_folder_id";
173
174    // tags for the customization tabs
175    private static final String WIDGETS_TAG = "widgets";
176    private static final String APPLICATIONS_TAG = "applications";
177    private static final String SHORTCUTS_TAG = "shortcuts";
178    private static final String WALLPAPERS_TAG = "wallpapers";
179
180    private static final String TOOLBAR_ICON_METADATA_NAME = "com.android.launcher.toolbar_icon";
181
182    /** The different states that Launcher can be in. */
183    private enum State { WORKSPACE, ALL_APPS, CUSTOMIZE, OVERVIEW,
184        CUSTOMIZE_SPRING_LOADED, ALL_APPS_SPRING_LOADED };
185    private State mState = State.WORKSPACE;
186    private AnimatorSet mStateAnimation;
187
188    static final int APPWIDGET_HOST_ID = 1024;
189
190    private static final Object sLock = new Object();
191    private static int sScreen = DEFAULT_SCREEN;
192
193    private final BroadcastReceiver mCloseSystemDialogsReceiver
194            = new CloseSystemDialogsIntentReceiver();
195    private final ContentObserver mWidgetObserver = new AppWidgetResetObserver();
196
197    private LayoutInflater mInflater;
198
199    private DragController mDragController;
200    private Workspace mWorkspace;
201
202    private AppWidgetManager mAppWidgetManager;
203    private LauncherAppWidgetHost mAppWidgetHost;
204
205    private int mAddScreen = -1;
206    private int mAddIntersectCellX = -1;
207    private int mAddIntersectCellY = -1;
208    private int[] mAddDropPosition;
209    private int[] mTmpAddItemCellCoordinates = new int[2];
210
211    private FolderInfo mFolderInfo;
212
213    private DeleteZone mDeleteZone;
214    private HandleView mHandleView;
215    private AllAppsView mAllAppsGrid;
216    private TabHost mHomeCustomizationDrawer;
217    private boolean mAutoAdvanceRunning = false;
218
219    private AllAppsPagedView mAllAppsPagedView = null;
220    private CustomizePagedView mCustomizePagedView = null;
221
222    private Bundle mSavedState;
223
224    private SpannableStringBuilder mDefaultKeySsb = null;
225
226    private boolean mWorkspaceLoading = true;
227
228    private boolean mPaused = true;
229    private boolean mRestoring;
230    private boolean mWaitingForResult;
231    private boolean mOnResumeNeedsLoad;
232
233    private Bundle mSavedInstanceState;
234
235    private LauncherModel mModel;
236    private IconCache mIconCache;
237    private boolean mUserPresent = true;
238    private boolean mVisible = false;
239    private boolean mAttached = false;
240
241    private static LocaleConfiguration sLocaleConfiguration = null;
242
243    private ArrayList<ItemInfo> mDesktopItems = new ArrayList<ItemInfo>();
244
245    private static HashMap<Long, FolderInfo> sFolders = new HashMap<Long, FolderInfo>();
246
247    private ImageView mPreviousView;
248    private ImageView mNextView;
249
250    // Hotseats (quick-launch icons next to AllApps)
251    private String[] mHotseatConfig = null;
252    private Intent[] mHotseats = null;
253    private Drawable[] mHotseatIcons = null;
254    private CharSequence[] mHotseatLabels = null;
255
256    private Intent mAppMarketIntent = null;
257
258    // Related to the auto-advancing of widgets
259    private final int ADVANCE_MSG = 1;
260    private final int mAdvanceInterval = 20000;
261    private final int mAdvanceStagger = 250;
262    private long mAutoAdvanceSentTime;
263    private long mAutoAdvanceTimeLeft = -1;
264    private HashMap<View, AppWidgetProviderInfo> mWidgetsToAdvance =
265        new HashMap<View, AppWidgetProviderInfo>();
266
267    // Determines how long to wait after a rotation before restoring the screen orientation to
268    // match the sensor state.
269    private final int mRestoreScreenOrientationDelay = 500;
270
271    // External icons saved in case of resource changes, orientation, etc.
272    private static Drawable.ConstantState sGlobalSearchIcon;
273    private static Drawable.ConstantState sVoiceSearchIcon;
274    private static Drawable.ConstantState sAppMarketIcon;
275
276    private CustomizationType getCustomizeFilterForTabTag(String tag) {
277        if (tag.equals(WIDGETS_TAG)) {
278            return CustomizationType.WidgetCustomization;
279        } else if (tag.equals(APPLICATIONS_TAG)) {
280            return CustomizationType.ApplicationCustomization;
281        } else if (tag.equals(WALLPAPERS_TAG)) {
282            return CustomizePagedView.CustomizationType.WallpaperCustomization;
283        } else if (tag.equals(SHORTCUTS_TAG)) {
284            return CustomizePagedView.CustomizationType.ShortcutCustomization;
285        }
286        return CustomizationType.WidgetCustomization;
287    }
288
289    @Override
290    protected void onCreate(Bundle savedInstanceState) {
291        super.onCreate(savedInstanceState);
292
293        if (LauncherApplication.isInPlaceRotationEnabled()) {
294            // hide the status bar (temporary until we get the status bar design figured out)
295            getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
296            this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR);
297        }
298
299        LauncherApplication app = ((LauncherApplication)getApplication());
300        mModel = app.setLauncher(this);
301        mIconCache = app.getIconCache();
302        mDragController = new DragController(this);
303        mInflater = getLayoutInflater();
304
305        mAppWidgetManager = AppWidgetManager.getInstance(this);
306        mAppWidgetHost = new LauncherAppWidgetHost(this, APPWIDGET_HOST_ID);
307        mAppWidgetHost.startListening();
308
309        if (PROFILE_STARTUP) {
310            android.os.Debug.startMethodTracing(
311                    Environment.getExternalStorageDirectory() + "/launcher");
312        }
313
314        loadHotseats();
315        checkForLocaleChange();
316        setContentView(R.layout.launcher);
317        mHomeCustomizationDrawer = (TabHost) findViewById(R.id.customization_drawer);
318        if (mHomeCustomizationDrawer != null) {
319            mHomeCustomizationDrawer.setup();
320
321            // share the same customization workspace across all the tabs
322            mCustomizePagedView = (CustomizePagedView) mInflater.inflate(
323                    R.layout.customization_drawer, mHomeCustomizationDrawer, false);
324            TabContentFactory contentFactory = new TabContentFactory() {
325                public View createTabContent(String tag) {
326                    return mCustomizePagedView;
327                }
328            };
329
330
331            TextView tabView;
332            TabWidget tabWidget = (TabWidget)
333                    mHomeCustomizationDrawer.findViewById(com.android.internal.R.id.tabs);
334
335            tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false);
336            tabView.setText(getString(R.string.widgets_tab_label));
337            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec(WIDGETS_TAG)
338                    .setIndicator(tabView).setContent(contentFactory));
339            tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false);
340            tabView.setText(getString(R.string.applications_tab_label));
341            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec(APPLICATIONS_TAG)
342                    .setIndicator(tabView).setContent(contentFactory));
343            tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false);
344            tabView.setText(getString(R.string.wallpapers_tab_label));
345            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec(WALLPAPERS_TAG)
346                    .setIndicator(tabView).setContent(contentFactory));
347            tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false);
348            tabView.setText(getString(R.string.shortcuts_tab_label));
349            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec(SHORTCUTS_TAG)
350                    .setIndicator(tabView).setContent(contentFactory));
351            mHomeCustomizationDrawer.setOnTabChangedListener(new OnTabChangeListener() {
352                public void onTabChanged(String tabId) {
353                    final CustomizePagedView.CustomizationType newType =
354                        getCustomizeFilterForTabTag(tabId);
355                    if (newType != mCustomizePagedView.getCustomizationFilter()) {
356                        // animate the changing of the tab content by fading pages in and out
357                        final Resources res = getResources();
358                        final int duration = res.getInteger(R.integer.config_tabTransitionTime);
359                        final float alpha = mCustomizePagedView.getAlpha();
360                        ValueAnimator alphaAnim = ObjectAnimator.ofFloat(mCustomizePagedView,
361                                "alpha", alpha, 0.0f);
362                        alphaAnim.setDuration(duration);
363                        alphaAnim.addListener(new AnimatorListenerAdapter() {
364                            @Override
365                            public void onAnimationEnd(Animator animation) {
366                                mCustomizePagedView.setCustomizationFilter(newType);
367
368                                final float alpha = mCustomizePagedView.getAlpha();
369                                ValueAnimator alphaAnim = ObjectAnimator.ofFloat(
370                                        mCustomizePagedView, "alpha", alpha, 1.0f);
371                                alphaAnim.setDuration(duration);
372                                alphaAnim.start();
373                            }
374                        });
375                        alphaAnim.start();
376                    }
377                }
378            });
379        }
380        setupViews();
381
382        registerContentObservers();
383
384        lockAllApps();
385
386        mSavedState = savedInstanceState;
387        restoreState(mSavedState);
388
389        // Update customization drawer _after_ restoring the states
390        if (mCustomizePagedView != null) {
391            mCustomizePagedView.update();
392        }
393
394        if (PROFILE_STARTUP) {
395            android.os.Debug.stopMethodTracing();
396        }
397
398        if (!mRestoring) {
399            mModel.startLoader(this, true);
400        }
401
402        // For handling default keys
403        mDefaultKeySsb = new SpannableStringBuilder();
404        Selection.setSelection(mDefaultKeySsb, 0);
405
406        IntentFilter filter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
407        registerReceiver(mCloseSystemDialogsReceiver, filter);
408
409        // If we have a saved version of these external icons, we load them up immediately
410        if (LauncherApplication.isScreenXLarge()) {
411            if (sGlobalSearchIcon != null) {
412                updateGlobalSearchIcon(sGlobalSearchIcon);
413            }
414            if (sVoiceSearchIcon != null) {
415                updateVoiceSearchIcon(sVoiceSearchIcon);
416            }
417            if (sAppMarketIcon != null) {
418                updateAppMarketIcon(sAppMarketIcon);
419            }
420        }
421    }
422
423    @Override
424    public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
425        super.dispatchPopulateAccessibilityEvent(event);
426
427        // we want to take over text population so it is context dependent
428        event.getText().clear();
429        if (mState == State.ALL_APPS) {
430            event.getText().add(getString(R.string.all_apps_button_label));
431        } else if (mState == State.WORKSPACE) {
432            event.getText().add(getString(R.string.all_apps_home_button_label));
433        }
434
435        return true;
436    }
437
438    private void checkForLocaleChange() {
439        if (sLocaleConfiguration == null) {
440            new AsyncTask<Void, Void, LocaleConfiguration>() {
441                @Override
442                protected LocaleConfiguration doInBackground(Void... unused) {
443                    LocaleConfiguration localeConfiguration = new LocaleConfiguration();
444                    readConfiguration(Launcher.this, localeConfiguration);
445                    return localeConfiguration;
446                }
447
448                @Override
449                protected void onPostExecute(LocaleConfiguration result) {
450                    sLocaleConfiguration = result;
451                    checkForLocaleChange();  // recursive, but now with a locale configuration
452                }
453            }.execute();
454            return;
455        }
456
457        final Configuration configuration = getResources().getConfiguration();
458
459        final String previousLocale = sLocaleConfiguration.locale;
460        final String locale = configuration.locale.toString();
461
462        final int previousMcc = sLocaleConfiguration.mcc;
463        final int mcc = configuration.mcc;
464
465        final int previousMnc = sLocaleConfiguration.mnc;
466        final int mnc = configuration.mnc;
467
468        boolean localeChanged = !locale.equals(previousLocale) || mcc != previousMcc || mnc != previousMnc;
469
470        if (localeChanged) {
471            sLocaleConfiguration.locale = locale;
472            sLocaleConfiguration.mcc = mcc;
473            sLocaleConfiguration.mnc = mnc;
474
475            mIconCache.flush();
476            loadHotseats();
477
478            final LocaleConfiguration localeConfiguration = sLocaleConfiguration;
479            new Thread("WriteLocaleConfiguration") {
480                @Override
481                public void run() {
482                    writeConfiguration(Launcher.this, localeConfiguration);
483                }
484            }.start();
485        }
486    }
487
488    private static class LocaleConfiguration {
489        public String locale;
490        public int mcc = -1;
491        public int mnc = -1;
492    }
493
494    private static void readConfiguration(Context context, LocaleConfiguration configuration) {
495        DataInputStream in = null;
496        try {
497            in = new DataInputStream(context.openFileInput(PREFERENCES));
498            configuration.locale = in.readUTF();
499            configuration.mcc = in.readInt();
500            configuration.mnc = in.readInt();
501        } catch (FileNotFoundException e) {
502            // Ignore
503        } catch (IOException e) {
504            // Ignore
505        } finally {
506            if (in != null) {
507                try {
508                    in.close();
509                } catch (IOException e) {
510                    // Ignore
511                }
512            }
513        }
514    }
515
516    private static void writeConfiguration(Context context, LocaleConfiguration configuration) {
517        DataOutputStream out = null;
518        try {
519            out = new DataOutputStream(context.openFileOutput(PREFERENCES, MODE_PRIVATE));
520            out.writeUTF(configuration.locale);
521            out.writeInt(configuration.mcc);
522            out.writeInt(configuration.mnc);
523            out.flush();
524        } catch (FileNotFoundException e) {
525            // Ignore
526        } catch (IOException e) {
527            //noinspection ResultOfMethodCallIgnored
528            context.getFileStreamPath(PREFERENCES).delete();
529        } finally {
530            if (out != null) {
531                try {
532                    out.close();
533                } catch (IOException e) {
534                    // Ignore
535                }
536            }
537        }
538    }
539
540    static int getScreen() {
541        synchronized (sLock) {
542            return sScreen;
543        }
544    }
545
546    static void setScreen(int screen) {
547        synchronized (sLock) {
548            sScreen = screen;
549        }
550    }
551
552    // Note: This doesn't do all the client-id magic that BrowserProvider does
553    // in Browser. (http://b/2425179)
554    private Uri getDefaultBrowserUri() {
555        String url = getString(R.string.default_browser_url);
556        if (url.indexOf("{CID}") != -1) {
557            url = url.replace("{CID}", "android-google");
558        }
559        return Uri.parse(url);
560    }
561
562    // Load the Intent templates from arrays.xml to populate the hotseats. For
563    // each Intent, if it resolves to a single app, use that as the launch
564    // intent & use that app's label as the contentDescription. Otherwise,
565    // retain the ResolveActivity so the user can pick an app.
566    private void loadHotseats() {
567        if (mHotseatConfig == null) {
568            mHotseatConfig = getResources().getStringArray(R.array.hotseats);
569            if (mHotseatConfig.length > 0) {
570                mHotseats = new Intent[mHotseatConfig.length];
571                mHotseatLabels = new CharSequence[mHotseatConfig.length];
572                mHotseatIcons = new Drawable[mHotseatConfig.length];
573            } else {
574                mHotseats = null;
575                mHotseatIcons = null;
576                mHotseatLabels = null;
577            }
578
579            TypedArray hotseatIconDrawables = getResources().obtainTypedArray(R.array.hotseat_icons);
580            for (int i=0; i<mHotseatConfig.length; i++) {
581                // load icon for this slot; currently unrelated to the actual activity
582                try {
583                    mHotseatIcons[i] = hotseatIconDrawables.getDrawable(i);
584                } catch (ArrayIndexOutOfBoundsException ex) {
585                    Log.w(TAG, "Missing hotseat_icons array item #" + i);
586                    mHotseatIcons[i] = null;
587                }
588            }
589            hotseatIconDrawables.recycle();
590        }
591
592        PackageManager pm = getPackageManager();
593        for (int i=0; i<mHotseatConfig.length; i++) {
594            Intent intent = null;
595            if (mHotseatConfig[i].equals("*BROWSER*")) {
596                // magic value meaning "launch user's default web browser"
597                // replace it with a generic web request so we can see if there is indeed a default
598                String defaultUri = getString(R.string.default_browser_url);
599                intent = new Intent(
600                        Intent.ACTION_VIEW,
601                        ((defaultUri != null)
602                            ? Uri.parse(defaultUri)
603                            : getDefaultBrowserUri())
604                    ).addCategory(Intent.CATEGORY_BROWSABLE);
605                // note: if the user launches this without a default set, she
606                // will always be taken to the default URL above; this is
607                // unavoidable as we must specify a valid URL in order for the
608                // chooser to appear, and once the user selects something, that
609                // URL is unavoidably sent to the chosen app.
610            } else {
611                try {
612                    intent = Intent.parseUri(mHotseatConfig[i], 0);
613                } catch (java.net.URISyntaxException ex) {
614                    Log.w(TAG, "Invalid hotseat intent: " + mHotseatConfig[i]);
615                    // bogus; leave intent=null
616                }
617            }
618
619            if (intent == null) {
620                mHotseats[i] = null;
621                mHotseatLabels[i] = getText(R.string.activity_not_found);
622                continue;
623            }
624
625            if (LOGD) {
626                Log.d(TAG, "loadHotseats: hotseat " + i
627                    + " initial intent=["
628                    + intent.toUri(Intent.URI_INTENT_SCHEME)
629                    + "]");
630            }
631
632            ResolveInfo bestMatch = pm.resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);
633            List<ResolveInfo> allMatches = pm.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
634            if (LOGD) {
635                Log.d(TAG, "Best match for intent: " + bestMatch);
636                Log.d(TAG, "All matches: ");
637                for (ResolveInfo ri : allMatches) {
638                    Log.d(TAG, "  --> " + ri);
639                }
640            }
641            // did this resolve to a single app, or the resolver?
642            if (allMatches.size() == 0 || bestMatch == null) {
643                // can't find any activity to handle this. let's leave the
644                // intent as-is and let Launcher show a toast when it fails
645                // to launch.
646                mHotseats[i] = intent;
647
648                // set accessibility text to "Not installed"
649                mHotseatLabels[i] = getText(R.string.activity_not_found);
650            } else {
651                boolean found = false;
652                for (ResolveInfo ri : allMatches) {
653                    if (bestMatch.activityInfo.name.equals(ri.activityInfo.name)
654                        && bestMatch.activityInfo.applicationInfo.packageName
655                            .equals(ri.activityInfo.applicationInfo.packageName)) {
656                        found = true;
657                        break;
658                    }
659                }
660
661                if (!found) {
662                    if (LOGD) Log.d(TAG, "Multiple options, no default yet");
663                    // the bestMatch is probably the ResolveActivity, meaning the
664                    // user has not yet selected a default
665                    // so: we'll keep the original intent for now
666                    mHotseats[i] = intent;
667
668                    // set the accessibility text to "Select shortcut"
669                    mHotseatLabels[i] = getText(R.string.title_select_shortcut);
670                } else {
671                    // we have an app!
672                    // now reconstruct the intent to launch it through the front
673                    // door
674                    ComponentName com = new ComponentName(
675                        bestMatch.activityInfo.applicationInfo.packageName,
676                        bestMatch.activityInfo.name);
677                    mHotseats[i] = new Intent(Intent.ACTION_MAIN).setComponent(com);
678
679                    // load the app label for accessibility
680                    mHotseatLabels[i] = bestMatch.activityInfo.loadLabel(pm);
681                }
682            }
683
684            if (LOGD) {
685                Log.d(TAG, "loadHotseats: hotseat " + i
686                    + " final intent=["
687                    + ((mHotseats[i] == null)
688                        ? "null"
689                        : mHotseats[i].toUri(Intent.URI_INTENT_SCHEME))
690                    + "] label=[" + mHotseatLabels[i]
691                    + "]"
692                    );
693            }
694        }
695    }
696
697    @Override
698    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
699        mWaitingForResult = false;
700
701        // The pattern used here is that a user PICKs a specific application,
702        // which, depending on the target, might need to CREATE the actual target.
703
704        // For example, the user would PICK_SHORTCUT for "Music playlist", and we
705        // launch over to the Music app to actually CREATE_SHORTCUT.
706
707        if (resultCode == RESULT_OK && mAddScreen != -1) {
708            switch (requestCode) {
709                case REQUEST_PICK_APPLICATION:
710                    completeAddApplication(
711                            this, data, mAddScreen, mAddIntersectCellX, mAddIntersectCellY);
712                    break;
713                case REQUEST_PICK_SHORTCUT:
714                    processShortcut(data);
715                    break;
716                case REQUEST_CREATE_SHORTCUT:
717                    completeAddShortcut(data, mAddScreen, mAddIntersectCellX, mAddIntersectCellY);
718                    break;
719                case REQUEST_PICK_LIVE_FOLDER:
720                    addLiveFolder(data);
721                    break;
722                case REQUEST_CREATE_LIVE_FOLDER:
723                    completeAddLiveFolder(data, mAddScreen, mAddIntersectCellX, mAddIntersectCellY);
724                    break;
725                case REQUEST_PICK_APPWIDGET:
726                    addAppWidgetFromPick(data);
727                    break;
728                case REQUEST_CREATE_APPWIDGET:
729                    int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
730                    completeAddAppWidget(appWidgetId, mAddScreen);
731                    break;
732                case REQUEST_PICK_WALLPAPER:
733                    // We just wanted the activity result here so we can clear mWaitingForResult
734                    break;
735            }
736        } else if ((requestCode == REQUEST_PICK_APPWIDGET ||
737                requestCode == REQUEST_CREATE_APPWIDGET) && resultCode == RESULT_CANCELED &&
738                data != null) {
739            // Clean up the appWidgetId if we canceled
740            int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
741            if (appWidgetId != -1) {
742                mAppWidgetHost.deleteAppWidgetId(appWidgetId);
743            }
744        }
745    }
746
747    @Override
748    protected void onResume() {
749        super.onResume();
750        mPaused = false;
751        if (mRestoring || mOnResumeNeedsLoad) {
752            mWorkspaceLoading = true;
753            mModel.startLoader(this, true);
754            mRestoring = false;
755            mOnResumeNeedsLoad = false;
756        }
757        // When we resume Launcher, a different Activity might be responsible for the app
758        // market intent, so refresh the icon
759        updateAppMarketIcon();
760    }
761
762    @Override
763    protected void onPause() {
764        super.onPause();
765        // Some launcher layouts don't have a previous and next view
766        if (mPreviousView != null) {
767            dismissPreview(mPreviousView);
768        }
769        if (mNextView != null) {
770            dismissPreview(mNextView);
771        }
772        mPaused = true;
773        mDragController.cancelDrag();
774    }
775
776    @Override
777    public Object onRetainNonConfigurationInstance() {
778        // Flag the loader to stop early before switching
779        mModel.stopLoader();
780        mAllAppsGrid.surrender();
781        return Boolean.TRUE;
782    }
783
784    // We can't hide the IME if it was forced open.  So don't bother
785    /*
786    @Override
787    public void onWindowFocusChanged(boolean hasFocus) {
788        super.onWindowFocusChanged(hasFocus);
789
790        if (hasFocus) {
791            final InputMethodManager inputManager = (InputMethodManager)
792                    getSystemService(Context.INPUT_METHOD_SERVICE);
793            WindowManager.LayoutParams lp = getWindow().getAttributes();
794            inputManager.hideSoftInputFromWindow(lp.token, 0, new android.os.ResultReceiver(new
795                        android.os.Handler()) {
796                        protected void onReceiveResult(int resultCode, Bundle resultData) {
797                            Log.d(TAG, "ResultReceiver got resultCode=" + resultCode);
798                        }
799                    });
800            Log.d(TAG, "called hideSoftInputFromWindow from onWindowFocusChanged");
801        }
802    }
803    */
804
805    private boolean acceptFilter() {
806        final InputMethodManager inputManager = (InputMethodManager)
807                getSystemService(Context.INPUT_METHOD_SERVICE);
808        return !inputManager.isFullscreenMode();
809    }
810
811    @Override
812    public boolean onKeyDown(int keyCode, KeyEvent event) {
813        boolean handled = super.onKeyDown(keyCode, event);
814        if (!handled && acceptFilter() && keyCode != KeyEvent.KEYCODE_ENTER) {
815            boolean gotKey = TextKeyListener.getInstance().onKeyDown(mWorkspace, mDefaultKeySsb,
816                    keyCode, event);
817            if (gotKey && mDefaultKeySsb != null && mDefaultKeySsb.length() > 0) {
818                // something usable has been typed - start a search
819                // the typed text will be retrieved and cleared by
820                // showSearchDialog()
821                // If there are multiple keystrokes before the search dialog takes focus,
822                // onSearchRequested() will be called for every keystroke,
823                // but it is idempotent, so it's fine.
824                return onSearchRequested();
825            }
826        }
827
828        // Eat the long press event so the keyboard doesn't come up.
829        if (keyCode == KeyEvent.KEYCODE_MENU && event.isLongPress()) {
830            return true;
831        }
832
833        return handled;
834    }
835
836    private String getTypedText() {
837        return mDefaultKeySsb.toString();
838    }
839
840    private void clearTypedText() {
841        mDefaultKeySsb.clear();
842        mDefaultKeySsb.clearSpans();
843        Selection.setSelection(mDefaultKeySsb, 0);
844    }
845
846    /**
847     * Given the integer (ordinal) value of a State enum instance, convert it to a variable of type
848     * State
849     */
850    private static State intToState(int stateOrdinal) {
851        State state = State.WORKSPACE;
852        final State[] stateValues = State.values();
853        for (int i = 0; i < stateValues.length; i++) {
854            if (stateValues[i].ordinal() == stateOrdinal) {
855                state = stateValues[i];
856                break;
857            }
858        }
859        return state;
860    }
861
862    /**
863     * Restores the previous state, if it exists.
864     *
865     * @param savedState The previous state.
866     */
867    private void restoreState(Bundle savedState) {
868        if (savedState == null) {
869            return;
870        }
871
872        State state = intToState(savedState.getInt(RUNTIME_STATE, State.WORKSPACE.ordinal()));
873
874        if (state == State.ALL_APPS) {
875            showAllApps(false);
876        } else if (state == State.CUSTOMIZE) {
877            showCustomizationDrawer(false);
878        }
879
880        final int currentScreen = savedState.getInt(RUNTIME_STATE_CURRENT_SCREEN, -1);
881        if (currentScreen > -1) {
882            mWorkspace.setCurrentPage(currentScreen);
883        }
884
885        final int addScreen = savedState.getInt(RUNTIME_STATE_PENDING_ADD_SCREEN, -1);
886
887        if (addScreen > -1) {
888            mAddScreen = addScreen;
889            mAddIntersectCellX = savedState.getInt(RUNTIME_STATE_PENDING_ADD_CELL_X);
890            mAddIntersectCellY = savedState.getInt(RUNTIME_STATE_PENDING_ADD_CELL_Y);
891            mRestoring = true;
892        }
893
894        boolean renameFolder = savedState.getBoolean(RUNTIME_STATE_PENDING_FOLDER_RENAME, false);
895        if (renameFolder) {
896            long id = savedState.getLong(RUNTIME_STATE_PENDING_FOLDER_RENAME_ID);
897            mFolderInfo = mModel.getFolderById(this, sFolders, id);
898            mRestoring = true;
899        }
900
901        // Restore the current AllApps drawer tab
902        if (mAllAppsGrid != null && mAllAppsGrid instanceof AllAppsTabbed) {
903            String curTab = savedState.getString("allapps_currentTab");
904            if (curTab != null) {
905                AllAppsTabbed tabhost = (AllAppsTabbed) mAllAppsGrid;
906                tabhost.setCurrentTabByTag(curTab);
907            }
908            int curPage = savedState.getInt("allapps_currentPage", -1);
909            if (curPage > -1) {
910                mAllAppsPagedView.setRestorePage(curPage);
911            }
912        }
913
914        // Restore the current customization drawer tab
915        if (mHomeCustomizationDrawer != null) {
916            String curTab = savedState.getString("customize_currentTab");
917            if (curTab != null) {
918                // We set this directly so that there is no delay before the tab is set
919                mCustomizePagedView.setCustomizationFilter(getCustomizeFilterForTabTag(curTab));
920                mHomeCustomizationDrawer.setCurrentTabByTag(curTab);
921            }
922
923            // Note: currently we do not restore the page for the customization tray because unlike
924            // AllApps, the page content can change drastically
925        }
926    }
927
928    /**
929     * Finds all the views we need and configure them properly.
930     */
931    private void setupViews() {
932        final DragController dragController = mDragController;
933
934        DragLayer dragLayer = (DragLayer) findViewById(R.id.drag_layer);
935        dragLayer.setDragController(dragController);
936
937        mAllAppsGrid = (AllAppsView)dragLayer.findViewById(R.id.all_apps_view);
938        mAllAppsGrid.setLauncher(this);
939        mAllAppsGrid.setDragController(dragController);
940        ((View) mAllAppsGrid).setWillNotDraw(false); // We don't want a hole punched in our window.
941        // Manage focusability manually since this thing is always visible (in non-xlarge)
942        ((View) mAllAppsGrid).setFocusable(false);
943
944        if (LauncherApplication.isScreenXLarge()) {
945            // They need to be INVISIBLE initially so that they will be measured in the layout.
946            // Otherwise the animations are messed up when we show them for the first time.
947            ((View) mAllAppsGrid).setVisibility(View.INVISIBLE);
948            mHomeCustomizationDrawer.setVisibility(View.INVISIBLE);
949        }
950
951        mWorkspace = (Workspace) dragLayer.findViewById(R.id.workspace);
952
953        final Workspace workspace = mWorkspace;
954        workspace.setHapticFeedbackEnabled(false);
955
956        DeleteZone deleteZone = (DeleteZone) dragLayer.findViewById(R.id.delete_zone);
957        mDeleteZone = deleteZone;
958
959        View handleView = findViewById(R.id.all_apps_button);
960        if (handleView != null && handleView instanceof HandleView) {
961            // we don't use handle view in xlarge mode
962            mHandleView = (HandleView)handleView;
963            mHandleView.setLauncher(this);
964            mHandleView.setOnClickListener(this);
965            mHandleView.setOnLongClickListener(this);
966        }
967
968        if (mCustomizePagedView != null) {
969            mCustomizePagedView.setLauncher(this);
970            mCustomizePagedView.setDragController(dragController);
971        } else {
972             ImageView hotseatLeft = (ImageView) findViewById(R.id.hotseat_left);
973             hotseatLeft.setContentDescription(mHotseatLabels[0]);
974             hotseatLeft.setImageDrawable(mHotseatIcons[0]);
975             ImageView hotseatRight = (ImageView) findViewById(R.id.hotseat_right);
976             hotseatRight.setContentDescription(mHotseatLabels[1]);
977             hotseatRight.setImageDrawable(mHotseatIcons[1]);
978
979             mPreviousView = (ImageView) dragLayer.findViewById(R.id.previous_screen);
980             mNextView = (ImageView) dragLayer.findViewById(R.id.next_screen);
981
982             Drawable previous = mPreviousView.getDrawable();
983             Drawable next = mNextView.getDrawable();
984             mWorkspace.setIndicators(previous, next);
985
986             mPreviousView.setHapticFeedbackEnabled(false);
987             mPreviousView.setOnLongClickListener(this);
988             mNextView.setHapticFeedbackEnabled(false);
989             mNextView.setOnLongClickListener(this);
990        }
991
992        workspace.setOnLongClickListener(this);
993        workspace.setDragController(dragController);
994        workspace.setLauncher(this);
995        workspace.setWallpaperDimension();
996
997        deleteZone.setLauncher(this);
998        deleteZone.setDragController(dragController);
999
1000        final View allAppsButton = findViewById(R.id.all_apps_button);
1001        final View divider = findViewById(R.id.divider);
1002        final View configureButton = findViewById(R.id.configure_button);
1003
1004        if (LauncherApplication.isScreenXLarge()) {
1005            deleteZone.setOverlappingViews(new View[] { allAppsButton, divider, configureButton });
1006        } else {
1007            deleteZone.setOverlappingView(findViewById(R.id.all_apps_button_cluster));
1008        }
1009        dragController.addDragListener(deleteZone);
1010
1011        DeleteZone allAppsDeleteZone = (DeleteZone) findViewById(R.id.all_apps_delete_zone);
1012        if (allAppsDeleteZone != null) {
1013            allAppsDeleteZone.setLauncher(this);
1014            allAppsDeleteZone.setDragController(dragController);
1015            allAppsDeleteZone.setDragAndDropEnabled(false);
1016            dragController.addDragListener(allAppsDeleteZone);
1017            dragController.addDropTarget(allAppsDeleteZone);
1018        }
1019
1020        ApplicationInfoDropTarget allAppsInfoTarget = (ApplicationInfoDropTarget)
1021                findViewById(R.id.all_apps_info_target);
1022        if (allAppsInfoTarget != null) {
1023            allAppsInfoTarget.setLauncher(this);
1024            dragController.addDragListener(allAppsInfoTarget);
1025            allAppsInfoTarget.setDragAndDropEnabled(false);
1026            View marketButton = findViewById(R.id.market_button);
1027            if (marketButton != null) {
1028                allAppsInfoTarget.setOverlappingView(marketButton);
1029            }
1030        }
1031
1032        dragController.setDragScoller(workspace);
1033        dragController.setScrollView(dragLayer);
1034        dragController.setMoveTarget(workspace);
1035
1036        // The order here is bottom to top.
1037        dragController.addDropTarget(workspace);
1038        dragController.addDropTarget(deleteZone);
1039        if (allAppsInfoTarget != null) {
1040            dragController.addDropTarget(allAppsInfoTarget);
1041        }
1042        if (allAppsDeleteZone != null) {
1043            dragController.addDropTarget(allAppsDeleteZone);
1044        }
1045    }
1046
1047    @SuppressWarnings({"UnusedDeclaration"})
1048    public void previousScreen(View v) {
1049        if (mState != State.ALL_APPS) {
1050            mWorkspace.scrollLeft();
1051        }
1052    }
1053
1054    @SuppressWarnings({"UnusedDeclaration"})
1055    public void nextScreen(View v) {
1056        if (mState != State.ALL_APPS) {
1057            mWorkspace.scrollRight();
1058        }
1059    }
1060
1061    @SuppressWarnings({"UnusedDeclaration"})
1062    public void launchHotSeat(View v) {
1063        if (mState == State.ALL_APPS) return;
1064
1065        int index = -1;
1066        if (v.getId() == R.id.hotseat_left) {
1067            index = 0;
1068        } else if (v.getId() == R.id.hotseat_right) {
1069            index = 1;
1070        }
1071
1072        // reload these every tap; you never know when they might change
1073        loadHotseats();
1074        if (index >= 0 && index < mHotseats.length && mHotseats[index] != null) {
1075            startActivitySafely(
1076                mHotseats[index],
1077                "hotseat"
1078            );
1079        }
1080    }
1081
1082    /**
1083     * Creates a view representing a shortcut.
1084     *
1085     * @param info The data structure describing the shortcut.
1086     *
1087     * @return A View inflated from R.layout.application.
1088     */
1089    View createShortcut(ShortcutInfo info) {
1090        return createShortcut(R.layout.application,
1091                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentPage()), info);
1092    }
1093
1094    /**
1095     * Creates a view representing a shortcut inflated from the specified resource.
1096     *
1097     * @param layoutResId The id of the XML layout used to create the shortcut.
1098     * @param parent The group the shortcut belongs to.
1099     * @param info The data structure describing the shortcut.
1100     *
1101     * @return A View inflated from layoutResId.
1102     */
1103    View createShortcut(int layoutResId, ViewGroup parent, ShortcutInfo info) {
1104        BubbleTextView favorite = (BubbleTextView) mInflater.inflate(layoutResId, parent, false);
1105        favorite.applyFromShortcutInfo(info, mIconCache);
1106        favorite.setOnClickListener(this);
1107        return favorite;
1108    }
1109
1110    /**
1111     * Add an application shortcut to the workspace.
1112     *
1113     * @param data The intent describing the application.
1114     * @param cellInfo The position on screen where to create the shortcut.
1115     */
1116    void completeAddApplication(Context context, Intent data, int screen,
1117            int intersectCellX, int intersectCellY) {
1118        final int[] cellXY = mTmpAddItemCellCoordinates;
1119        final CellLayout layout = (CellLayout) mWorkspace.getChildAt(screen);
1120
1121        if (!layout.findCellForSpanThatIntersects(cellXY, 1, 1, intersectCellX, intersectCellY)) {
1122            showOutOfSpaceMessage();
1123            return;
1124        }
1125
1126        final ShortcutInfo info = mModel.getShortcutInfo(context.getPackageManager(),
1127                data, context);
1128
1129        if (info != null) {
1130            info.setActivity(data.getComponent(), Intent.FLAG_ACTIVITY_NEW_TASK |
1131                    Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
1132            info.container = ItemInfo.NO_ID;
1133            mWorkspace.addApplicationShortcut(info, screen, cellXY[0], cellXY[1],
1134                    isWorkspaceLocked(), mAddIntersectCellX, mAddIntersectCellY);
1135        } else {
1136            Log.e(TAG, "Couldn't find ActivityInfo for selected application: " + data);
1137        }
1138    }
1139
1140    /**
1141     * Add a shortcut to the workspace.
1142     *
1143     * @param data The intent describing the shortcut.
1144     * @param cellInfo The position on screen where to create the shortcut.
1145     */
1146    private void completeAddShortcut(Intent data, int screen,
1147            int intersectCellX, int intersectCellY) {
1148        final int[] cellXY = mTmpAddItemCellCoordinates;
1149        final CellLayout layout = (CellLayout) mWorkspace.getChildAt(screen);
1150
1151        int[] touchXY = mAddDropPosition;
1152        boolean foundCellSpan = false;
1153        if (touchXY != null) {
1154            // when dragging and dropping, just find the closest free spot
1155            CellLayout screenLayout = (CellLayout) mWorkspace.getChildAt(screen);
1156            int[] result = screenLayout.findNearestVacantArea(
1157                    touchXY[0], touchXY[1], 1, 1, cellXY);
1158            foundCellSpan = (result != null);
1159        } else {
1160            foundCellSpan = layout.findCellForSpanThatIntersects(
1161                    cellXY, 1, 1, intersectCellX, intersectCellY);
1162        }
1163
1164        if (!foundCellSpan) {
1165            showOutOfSpaceMessage();
1166            return;
1167        }
1168
1169        final ShortcutInfo info = mModel.addShortcut(
1170                this, data, screen, cellXY[0], cellXY[1], false);
1171
1172        if (!mRestoring) {
1173            final View view = createShortcut(info);
1174            mWorkspace.addInScreen(view, screen, cellXY[0], cellXY[1], 1, 1, isWorkspaceLocked());
1175        }
1176    }
1177
1178    /**
1179     * Add a widget to the workspace.
1180     *
1181     * @param appWidgetId The app widget id
1182     * @param cellInfo The position on screen where to create the widget.
1183     */
1184    private void completeAddAppWidget(int appWidgetId, int screen) {
1185        AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
1186
1187        // Calculate the grid spans needed to fit this widget
1188        CellLayout layout = (CellLayout) mWorkspace.getChildAt(screen);
1189        int[] spanXY = layout.rectToCell(appWidgetInfo.minWidth, appWidgetInfo.minHeight, null);
1190
1191        // Try finding open space on Launcher screen
1192        // We have saved the position to which the widget was dragged-- this really only matters
1193        // if we are placing widgets on a "spring-loaded" screen
1194        final int[] cellXY = mTmpAddItemCellCoordinates;
1195
1196        int[] touchXY = mAddDropPosition;
1197        boolean foundCellSpan = false;
1198        if (touchXY != null) {
1199            // when dragging and dropping, just find the closest free spot
1200            CellLayout screenLayout = (CellLayout) mWorkspace.getChildAt(screen);
1201            int[] result = screenLayout.findNearestVacantArea(
1202                    touchXY[0], touchXY[1], spanXY[0], spanXY[1], cellXY);
1203            foundCellSpan = (result != null);
1204        } else {
1205            // if we long pressed on an empty cell to bring up a menu,
1206            // make sure we intersect the empty cell
1207            // if mAddIntersectCellX/Y are -1 (e.g. we used menu -> add) then
1208            // findCellForSpanThatIntersects will just ignore them
1209            foundCellSpan = layout.findCellForSpanThatIntersects(cellXY, spanXY[0], spanXY[1],
1210                    mAddIntersectCellX, mAddIntersectCellY);
1211        }
1212
1213        if (!foundCellSpan) {
1214            if (appWidgetId != -1) mAppWidgetHost.deleteAppWidgetId(appWidgetId);
1215            showOutOfSpaceMessage();
1216            return;
1217        }
1218
1219        // Build Launcher-specific widget info and save to database
1220        LauncherAppWidgetInfo launcherInfo = new LauncherAppWidgetInfo(appWidgetId);
1221        launcherInfo.spanX = spanXY[0];
1222        launcherInfo.spanY = spanXY[1];
1223
1224        LauncherModel.addItemToDatabase(this, launcherInfo,
1225                LauncherSettings.Favorites.CONTAINER_DESKTOP,
1226                screen, cellXY[0], cellXY[1], false);
1227
1228        if (!mRestoring) {
1229            mDesktopItems.add(launcherInfo);
1230
1231            // Perform actual inflation because we're live
1232            launcherInfo.hostView = mAppWidgetHost.createView(this, appWidgetId, appWidgetInfo);
1233
1234            launcherInfo.hostView.setAppWidget(appWidgetId, appWidgetInfo);
1235            launcherInfo.hostView.setTag(launcherInfo);
1236
1237            mWorkspace.addInScreen(launcherInfo.hostView, screen, cellXY[0], cellXY[1],
1238                    launcherInfo.spanX, launcherInfo.spanY, isWorkspaceLocked());
1239
1240            addWidgetToAutoAdvanceIfNeeded(launcherInfo.hostView, appWidgetInfo);
1241        }
1242    }
1243
1244    private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
1245        @Override
1246        public void onReceive(Context context, Intent intent) {
1247            final String action = intent.getAction();
1248            if (Intent.ACTION_SCREEN_OFF.equals(action)) {
1249                mUserPresent = false;
1250                updateRunning();
1251            } else if (Intent.ACTION_USER_PRESENT.equals(action)) {
1252                mUserPresent = true;
1253                updateRunning();
1254            }
1255        }
1256    };
1257
1258    @Override
1259    public void onAttachedToWindow() {
1260        super.onAttachedToWindow();
1261
1262        // Listen for broadcasts related to user-presence
1263        final IntentFilter filter = new IntentFilter();
1264        filter.addAction(Intent.ACTION_SCREEN_OFF);
1265        filter.addAction(Intent.ACTION_USER_PRESENT);
1266        registerReceiver(mReceiver, filter);
1267
1268        mAttached = true;
1269        mVisible = true;
1270    }
1271
1272    @Override
1273    public void onDetachedFromWindow() {
1274        super.onDetachedFromWindow();
1275        mVisible = false;
1276
1277        if (mAttached) {
1278            unregisterReceiver(mReceiver);
1279            mAttached = false;
1280        }
1281        updateRunning();
1282    }
1283
1284    public void onWindowVisibilityChanged(int visibility) {
1285        mVisible = visibility == View.VISIBLE;
1286        updateRunning();
1287    }
1288
1289    private void sendAdvanceMessage(long delay) {
1290        mHandler.removeMessages(ADVANCE_MSG);
1291        Message msg = mHandler.obtainMessage(ADVANCE_MSG);
1292        mHandler.sendMessageDelayed(msg, delay);
1293        mAutoAdvanceSentTime = System.currentTimeMillis();
1294    }
1295
1296    private void updateRunning() {
1297        boolean autoAdvanceRunning = mVisible && mUserPresent && !mWidgetsToAdvance.isEmpty();
1298        if (autoAdvanceRunning != mAutoAdvanceRunning) {
1299            mAutoAdvanceRunning = autoAdvanceRunning;
1300            if (autoAdvanceRunning) {
1301                long delay = mAutoAdvanceTimeLeft == -1 ? mAdvanceInterval : mAutoAdvanceTimeLeft;
1302                sendAdvanceMessage(delay);
1303            } else {
1304                if (!mWidgetsToAdvance.isEmpty()) {
1305                    mAutoAdvanceTimeLeft = Math.max(0, mAdvanceInterval -
1306                            (System.currentTimeMillis() - mAutoAdvanceSentTime));
1307                }
1308                mHandler.removeMessages(ADVANCE_MSG);
1309                mHandler.removeMessages(0); // Remove messages sent using postDelayed()
1310            }
1311        }
1312    }
1313
1314    private final Handler mHandler = new Handler() {
1315        @Override
1316        public void handleMessage(Message msg) {
1317            if (msg.what == ADVANCE_MSG) {
1318                int i = 0;
1319                for (View key: mWidgetsToAdvance.keySet()) {
1320                    final View v = key.findViewById(mWidgetsToAdvance.get(key).autoAdvanceViewId);
1321                    final int delay = mAdvanceStagger * i;
1322                    if (v instanceof Advanceable) {
1323                       postDelayed(new Runnable() {
1324                           public void run() {
1325                               ((Advanceable) v).advance();
1326                           }
1327                       }, delay);
1328                    }
1329                    i++;
1330                }
1331                sendAdvanceMessage(mAdvanceInterval);
1332            }
1333        }
1334    };
1335
1336    void addWidgetToAutoAdvanceIfNeeded(View hostView, AppWidgetProviderInfo appWidgetInfo) {
1337        if (appWidgetInfo.autoAdvanceViewId == -1) return;
1338        View v = hostView.findViewById(appWidgetInfo.autoAdvanceViewId);
1339        if (v instanceof Advanceable) {
1340            mWidgetsToAdvance.put(hostView, appWidgetInfo);
1341            ((Advanceable) v).fyiWillBeAdvancedByHostKThx();
1342            updateRunning();
1343        }
1344    }
1345
1346    void removeWidgetToAutoAdvance(View hostView) {
1347        if (mWidgetsToAdvance.containsKey(hostView)) {
1348            mWidgetsToAdvance.remove(hostView);
1349            updateRunning();
1350        }
1351    }
1352
1353    public void removeAppWidget(LauncherAppWidgetInfo launcherInfo) {
1354        mDesktopItems.remove(launcherInfo);
1355        removeWidgetToAutoAdvance(launcherInfo.hostView);
1356        launcherInfo.hostView = null;
1357    }
1358
1359    void showOutOfSpaceMessage() {
1360        Toast.makeText(this, getString(R.string.out_of_space), Toast.LENGTH_SHORT).show();
1361    }
1362
1363    public LauncherAppWidgetHost getAppWidgetHost() {
1364        return mAppWidgetHost;
1365    }
1366
1367    public LauncherModel getModel() {
1368        return mModel;
1369    }
1370
1371    void closeSystemDialogs() {
1372        getWindow().closeAllPanels();
1373
1374        try {
1375            dismissDialog(DIALOG_CREATE_SHORTCUT);
1376            // Unlock the workspace if the dialog was showing
1377        } catch (Exception e) {
1378            // An exception is thrown if the dialog is not visible, which is fine
1379        }
1380
1381        try {
1382            dismissDialog(DIALOG_RENAME_FOLDER);
1383            // Unlock the workspace if the dialog was showing
1384        } catch (Exception e) {
1385            // An exception is thrown if the dialog is not visible, which is fine
1386        }
1387
1388        // Whatever we were doing is hereby canceled.
1389        mWaitingForResult = false;
1390    }
1391
1392    @Override
1393    protected void onNewIntent(Intent intent) {
1394        super.onNewIntent(intent);
1395
1396        // Close the menu
1397        if (Intent.ACTION_MAIN.equals(intent.getAction())) {
1398            // also will cancel mWaitingForResult.
1399            closeSystemDialogs();
1400
1401            boolean alreadyOnHome = ((intent.getFlags() & Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT)
1402                        != Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT);
1403
1404            // in all these cases, only animate if we're already on home
1405            if (LauncherApplication.isScreenXLarge()) {
1406                mWorkspace.unshrink(alreadyOnHome);
1407            }
1408            if (!mWorkspace.isDefaultPageShowing()) {
1409                // on the phone, we don't animate the change to the workspace if all apps is visible
1410                boolean animate = alreadyOnHome &&
1411                    (LauncherApplication.isScreenXLarge() || mState != State.ALL_APPS);
1412                mWorkspace.moveToDefaultScreen(animate);
1413                if (!animate) mWorkspace.updateWallpaperOffsetImmediately();
1414            }
1415            showWorkspace(alreadyOnHome);
1416
1417            final View v = getWindow().peekDecorView();
1418            if (v != null && v.getWindowToken() != null) {
1419                InputMethodManager imm = (InputMethodManager)getSystemService(
1420                        INPUT_METHOD_SERVICE);
1421                imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
1422            }
1423        }
1424    }
1425
1426    @Override
1427    protected void onRestoreInstanceState(Bundle savedInstanceState) {
1428        // Do not call super here
1429        mSavedInstanceState = savedInstanceState;
1430    }
1431
1432    @Override
1433    protected void onSaveInstanceState(Bundle outState) {
1434        outState.putInt(RUNTIME_STATE_CURRENT_SCREEN, mWorkspace.getCurrentPage());
1435
1436        final ArrayList<Folder> folders = mWorkspace.getOpenFolders();
1437        if (folders.size() > 0) {
1438            final int count = folders.size();
1439            long[] ids = new long[count];
1440            for (int i = 0; i < count; i++) {
1441                final FolderInfo info = folders.get(i).getInfo();
1442                ids[i] = info.id;
1443            }
1444            outState.putLongArray(RUNTIME_STATE_USER_FOLDERS, ids);
1445        } else {
1446            super.onSaveInstanceState(outState);
1447        }
1448
1449        outState.putInt(RUNTIME_STATE, mState.ordinal());
1450
1451        if (mAddScreen > -1 && mWaitingForResult) {
1452            outState.putInt(RUNTIME_STATE_PENDING_ADD_SCREEN, mAddScreen);
1453            outState.putInt(RUNTIME_STATE_PENDING_ADD_CELL_X, mAddIntersectCellX);
1454            outState.putInt(RUNTIME_STATE_PENDING_ADD_CELL_Y, mAddIntersectCellY);
1455        }
1456
1457        if (mFolderInfo != null && mWaitingForResult) {
1458            outState.putBoolean(RUNTIME_STATE_PENDING_FOLDER_RENAME, true);
1459            outState.putLong(RUNTIME_STATE_PENDING_FOLDER_RENAME_ID, mFolderInfo.id);
1460        }
1461
1462        // Save the current AllApps drawer tab
1463        if (mAllAppsGrid != null && mAllAppsGrid instanceof AllAppsTabbed) {
1464            AllAppsTabbed tabhost = (AllAppsTabbed) mAllAppsGrid;
1465            String currentTabTag = tabhost.getCurrentTabTag();
1466            if (currentTabTag != null) {
1467                outState.putString("allapps_currentTab", currentTabTag);
1468                outState.putInt("allapps_currentPage", mAllAppsPagedView.getCurrentPage());
1469            }
1470        }
1471
1472        // Save the current customization drawer tab
1473        if (mHomeCustomizationDrawer != null) {
1474            String currentTabTag = mHomeCustomizationDrawer.getCurrentTabTag();
1475            if (currentTabTag != null) {
1476                outState.putString("customize_currentTab", currentTabTag);
1477            }
1478        }
1479    }
1480
1481    @Override
1482    public void onDestroy() {
1483        super.onDestroy();
1484
1485        try {
1486            mAppWidgetHost.stopListening();
1487        } catch (NullPointerException ex) {
1488            Log.w(TAG, "problem while stopping AppWidgetHost during Launcher destruction", ex);
1489        }
1490        mAppWidgetHost = null;
1491
1492        mWidgetsToAdvance.clear();
1493
1494        TextKeyListener.getInstance().release();
1495
1496        mModel.stopLoader();
1497
1498        unbindDesktopItems();
1499
1500        getContentResolver().unregisterContentObserver(mWidgetObserver);
1501
1502        // Some launcher layouts don't have a previous and next view
1503        if (mPreviousView != null) {
1504            dismissPreview(mPreviousView);
1505        }
1506        if (mNextView != null) {
1507            dismissPreview(mNextView);
1508        }
1509
1510        unregisterReceiver(mCloseSystemDialogsReceiver);
1511
1512        ((ViewGroup) mWorkspace.getParent()).removeAllViews();
1513        mWorkspace.removeAllViews();
1514        mWorkspace = null;
1515        mDragController = null;
1516
1517        ValueAnimator.clearAllAnimations();
1518    }
1519
1520    @Override
1521    public void startActivityForResult(Intent intent, int requestCode) {
1522        if (requestCode >= 0) mWaitingForResult = true;
1523        super.startActivityForResult(intent, requestCode);
1524    }
1525
1526    @Override
1527    public void startSearch(String initialQuery, boolean selectInitialQuery,
1528            Bundle appSearchData, boolean globalSearch) {
1529
1530        showWorkspace(true);
1531
1532        if (initialQuery == null) {
1533            // Use any text typed in the launcher as the initial query
1534            initialQuery = getTypedText();
1535            clearTypedText();
1536        }
1537        if (appSearchData == null) {
1538            appSearchData = new Bundle();
1539            appSearchData.putString(Search.SOURCE, "launcher-search");
1540        }
1541
1542        final SearchManager searchManager =
1543                (SearchManager) getSystemService(Context.SEARCH_SERVICE);
1544        searchManager.startSearch(initialQuery, selectInitialQuery, getComponentName(),
1545            appSearchData, globalSearch);
1546    }
1547
1548    @Override
1549    public boolean onCreateOptionsMenu(Menu menu) {
1550        if (isWorkspaceLocked()) {
1551            return false;
1552        }
1553
1554        super.onCreateOptionsMenu(menu);
1555
1556        menu.add(MENU_GROUP_ADD, MENU_ADD, 0, R.string.menu_add)
1557                .setIcon(android.R.drawable.ic_menu_add)
1558                .setAlphabeticShortcut('A');
1559        menu.add(0, MENU_MANAGE_APPS, 0, R.string.menu_manage_apps)
1560                .setIcon(android.R.drawable.ic_menu_manage)
1561                .setAlphabeticShortcut('M');
1562        menu.add(MENU_GROUP_WALLPAPER, MENU_WALLPAPER_SETTINGS, 0, R.string.menu_wallpaper)
1563                 .setIcon(android.R.drawable.ic_menu_gallery)
1564                 .setAlphabeticShortcut('W');
1565        menu.add(0, MENU_SEARCH, 0, R.string.menu_search)
1566                .setIcon(android.R.drawable.ic_search_category_default)
1567                .setAlphabeticShortcut(SearchManager.MENU_KEY);
1568        menu.add(0, MENU_NOTIFICATIONS, 0, R.string.menu_notifications)
1569                .setIcon(com.android.internal.R.drawable.ic_menu_notifications)
1570                .setAlphabeticShortcut('N');
1571
1572        final Intent settings = new Intent(android.provider.Settings.ACTION_SETTINGS);
1573        settings.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
1574                Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
1575
1576        menu.add(0, MENU_SETTINGS, 0, R.string.menu_settings)
1577                .setIcon(android.R.drawable.ic_menu_preferences).setAlphabeticShortcut('P')
1578                .setIntent(settings);
1579
1580        return true;
1581    }
1582
1583    @Override
1584    public boolean onPrepareOptionsMenu(Menu menu) {
1585        super.onPrepareOptionsMenu(menu);
1586
1587        // If all apps is animating, don't show the menu, because we don't know
1588        // which one to show.
1589        if (mAllAppsGrid.isAnimating()) {
1590            return false;
1591        }
1592
1593        // Only show the add and wallpaper options when we're not in all apps.
1594        boolean visible = !mAllAppsGrid.isVisible();
1595        menu.setGroupVisible(MENU_GROUP_ADD, visible);
1596        menu.setGroupVisible(MENU_GROUP_WALLPAPER, visible);
1597
1598        // Disable add if the workspace is full.
1599        if (visible) {
1600            CellLayout layout = (CellLayout) mWorkspace.getChildAt(mWorkspace.getCurrentPage());
1601            menu.setGroupEnabled(MENU_GROUP_ADD, layout.existsEmptyCell());
1602        }
1603
1604        return true;
1605    }
1606
1607    @Override
1608    public boolean onOptionsItemSelected(MenuItem item) {
1609        switch (item.getItemId()) {
1610            case MENU_ADD:
1611                addItems();
1612                return true;
1613            case MENU_MANAGE_APPS:
1614                manageApps();
1615                return true;
1616            case MENU_WALLPAPER_SETTINGS:
1617                startWallpaper();
1618                return true;
1619            case MENU_SEARCH:
1620                onSearchRequested();
1621                return true;
1622            case MENU_NOTIFICATIONS:
1623                showNotifications();
1624                return true;
1625        }
1626
1627        return super.onOptionsItemSelected(item);
1628    }
1629
1630    /**
1631     * Indicates that we want global search for this activity by setting the globalSearch
1632     * argument for {@link #startSearch} to true.
1633     */
1634
1635    @Override
1636    public boolean onSearchRequested() {
1637        startSearch(null, false, null, true);
1638        return true;
1639    }
1640
1641    public boolean isWorkspaceLocked() {
1642        return mWorkspaceLoading || mWaitingForResult;
1643    }
1644
1645    private void addItems() {
1646        if (LauncherApplication.isScreenXLarge()) {
1647            // Animate the widget chooser up from the bottom of the screen
1648            if (mState != State.CUSTOMIZE) {
1649                showCustomizationDrawer(true);
1650            }
1651        } else {
1652            showWorkspace(true);
1653            showAddDialog(-1, -1);
1654        }
1655    }
1656
1657    private void resetAddInfo() {
1658        mAddScreen = -1;
1659        mAddIntersectCellX = -1;
1660        mAddIntersectCellY = -1;
1661        mAddDropPosition = null;
1662    }
1663
1664    void addAppWidgetFromDrop(PendingAddWidgetInfo info, int screen, int[] position) {
1665        resetAddInfo();
1666        mAddScreen = screen;
1667        mAddDropPosition = position;
1668
1669        int appWidgetId = getAppWidgetHost().allocateAppWidgetId();
1670        AppWidgetManager.getInstance(this).bindAppWidgetId(appWidgetId, info.componentName);
1671        addAppWidgetImpl(appWidgetId, info);
1672    }
1673
1674    private void manageApps() {
1675        startActivity(new Intent(android.provider.Settings.ACTION_MANAGE_ALL_APPLICATIONS_SETTINGS));
1676    }
1677
1678    void addAppWidgetFromPick(Intent data) {
1679        // TODO: catch bad widget exception when sent
1680        int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
1681        // TODO: Is this log message meaningful?
1682        if (LOGD) Log.d(TAG, "dumping extras content=" + data.getExtras());
1683        addAppWidgetImpl(appWidgetId, null);
1684    }
1685
1686    void addAppWidgetImpl(int appWidgetId, PendingAddWidgetInfo info) {
1687        AppWidgetProviderInfo appWidget = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
1688
1689        if (appWidget.configure != null) {
1690            // Launch over to configure widget, if needed
1691            Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_CONFIGURE);
1692            intent.setComponent(appWidget.configure);
1693            intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
1694            if (info != null) {
1695                if (info.mimeType != null && !info.mimeType.isEmpty()) {
1696                    intent.putExtra(
1697                            InstallWidgetReceiver.EXTRA_APPWIDGET_CONFIGURATION_DATA_MIME_TYPE,
1698                            info.mimeType);
1699
1700                    final String mimeType = info.mimeType;
1701                    final ClipData clipData = (ClipData) info.configurationData;
1702                    final ClipDescription clipDesc = clipData.getDescription();
1703                    for (int i = 0; i < clipDesc.getMimeTypeCount(); ++i) {
1704                        if (clipDesc.getMimeType(i).equals(mimeType)) {
1705                            final ClipData.Item item = clipData.getItemAt(i);
1706                            final CharSequence stringData = item.getText();
1707                            final Uri uriData = item.getUri();
1708                            final Intent intentData = item.getIntent();
1709                            final String key =
1710                                InstallWidgetReceiver.EXTRA_APPWIDGET_CONFIGURATION_DATA;
1711                            if (uriData != null) {
1712                                intent.putExtra(key, uriData);
1713                            } else if (intentData != null) {
1714                                intent.putExtra(key, intentData);
1715                            } else if (stringData != null) {
1716                                intent.putExtra(key, stringData);
1717                            }
1718                            break;
1719                        }
1720                    }
1721                }
1722            }
1723
1724            startActivityForResultSafely(intent, REQUEST_CREATE_APPWIDGET);
1725        } else {
1726            // Otherwise just add it
1727            completeAddAppWidget(appWidgetId, mAddScreen);
1728        }
1729    }
1730
1731    void processShortcutFromDrop(ComponentName componentName, int screen, int[] position) {
1732        resetAddInfo();
1733        mAddScreen = screen;
1734        mAddDropPosition = position;
1735
1736        Intent createShortcutIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT);
1737        createShortcutIntent.setComponent(componentName);
1738        processShortcut(createShortcutIntent);
1739    }
1740
1741    void processShortcut(Intent intent) {
1742        // Handle case where user selected "Applications"
1743        String applicationName = getResources().getString(R.string.group_applications);
1744        String shortcutName = intent.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
1745
1746        if (applicationName != null && applicationName.equals(shortcutName)) {
1747            Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
1748            mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
1749
1750            Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
1751            pickIntent.putExtra(Intent.EXTRA_INTENT, mainIntent);
1752            pickIntent.putExtra(Intent.EXTRA_TITLE, getText(R.string.title_select_application));
1753            startActivityForResultSafely(pickIntent, REQUEST_PICK_APPLICATION);
1754        } else {
1755            startActivityForResultSafely(intent, REQUEST_CREATE_SHORTCUT);
1756        }
1757    }
1758
1759    void processWallpaper(Intent intent) {
1760        startActivityForResult(intent, REQUEST_PICK_WALLPAPER);
1761    }
1762
1763    void addLiveFolderFromDrop(ComponentName componentName, int screen, int[] position) {
1764        resetAddInfo();
1765        mAddScreen = screen;
1766        mAddDropPosition = position;
1767
1768        Intent createFolderIntent = new Intent(LiveFolders.ACTION_CREATE_LIVE_FOLDER);
1769        createFolderIntent.setComponent(componentName);
1770
1771        addLiveFolder(createFolderIntent);
1772    }
1773
1774    void addLiveFolder(Intent intent) { // YYY add screen intersect etc. parameters here
1775        // Handle case where user selected "Folder"
1776        String folderName = getResources().getString(R.string.group_folder);
1777        String shortcutName = intent.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
1778
1779        if (folderName != null && folderName.equals(shortcutName)) {
1780            addFolder(mAddScreen, mAddIntersectCellX, mAddIntersectCellY);
1781        } else {
1782            startActivityForResultSafely(intent, REQUEST_CREATE_LIVE_FOLDER);
1783        }
1784    }
1785
1786    void addFolder(int screen, int intersectCellX, int intersectCellY) {
1787        UserFolderInfo folderInfo = new UserFolderInfo();
1788        folderInfo.title = getText(R.string.folder_name);
1789
1790        final CellLayout layout = (CellLayout) mWorkspace.getChildAt(screen);
1791        final int[] cellXY = mTmpAddItemCellCoordinates;
1792        if (!layout.findCellForSpanThatIntersects(cellXY, 1, 1, intersectCellX, intersectCellY)) {
1793            showOutOfSpaceMessage();
1794            return;
1795        }
1796
1797        // Update the model
1798        LauncherModel.addItemToDatabase(this, folderInfo,
1799                LauncherSettings.Favorites.CONTAINER_DESKTOP,
1800                screen, cellXY[0], cellXY[1], false);
1801        sFolders.put(folderInfo.id, folderInfo);
1802
1803        // Create the view
1804        FolderIcon newFolder = FolderIcon.fromXml(R.layout.folder_icon, this,
1805                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentPage()),
1806                folderInfo, mIconCache);
1807        mWorkspace.addInScreen(newFolder, screen, cellXY[0], cellXY[1], 1, 1, isWorkspaceLocked());
1808    }
1809
1810    void removeFolder(FolderInfo folder) {
1811        sFolders.remove(folder.id);
1812    }
1813
1814    private void completeAddLiveFolder(
1815            Intent data, int screen, int intersectCellX, int intersectCellY) {
1816        final CellLayout layout = (CellLayout) mWorkspace.getChildAt(screen);
1817        final int[] cellXY = mTmpAddItemCellCoordinates;
1818        if (!layout.findCellForSpanThatIntersects(cellXY, 1, 1, intersectCellX, intersectCellY)) {
1819            showOutOfSpaceMessage();
1820            return;
1821        }
1822
1823        final LiveFolderInfo info = addLiveFolder(this, data, screen, cellXY[0], cellXY[1], false);
1824
1825        if (!mRestoring) {
1826            final View view = LiveFolderIcon.fromXml(R.layout.live_folder_icon, this,
1827                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentPage()), info);
1828            mWorkspace.addInScreen(view, screen, cellXY[0], cellXY[1], 1, 1, isWorkspaceLocked());
1829        }
1830    }
1831
1832    static LiveFolderInfo addLiveFolder(Context context, Intent data,
1833            int screen, int cellX, int cellY, boolean notify) {
1834
1835        Intent baseIntent = data.getParcelableExtra(LiveFolders.EXTRA_LIVE_FOLDER_BASE_INTENT);
1836        String name = data.getStringExtra(LiveFolders.EXTRA_LIVE_FOLDER_NAME);
1837
1838        Drawable icon = null;
1839        Intent.ShortcutIconResource iconResource = null;
1840
1841        Parcelable extra = data.getParcelableExtra(LiveFolders.EXTRA_LIVE_FOLDER_ICON);
1842        if (extra != null && extra instanceof Intent.ShortcutIconResource) {
1843            try {
1844                iconResource = (Intent.ShortcutIconResource) extra;
1845                final PackageManager packageManager = context.getPackageManager();
1846                Resources resources = packageManager.getResourcesForApplication(
1847                        iconResource.packageName);
1848                final int id = resources.getIdentifier(iconResource.resourceName, null, null);
1849                icon = resources.getDrawable(id);
1850            } catch (Exception e) {
1851                Log.w(TAG, "Could not load live folder icon: " + extra);
1852            }
1853        }
1854
1855        if (icon == null) {
1856            icon = context.getResources().getDrawable(R.drawable.ic_launcher_folder);
1857        }
1858
1859        final LiveFolderInfo info = new LiveFolderInfo();
1860        info.icon = Utilities.createIconBitmap(icon, context);
1861        info.title = name;
1862        info.iconResource = iconResource;
1863        info.uri = data.getData();
1864        info.baseIntent = baseIntent;
1865        info.displayMode = data.getIntExtra(LiveFolders.EXTRA_LIVE_FOLDER_DISPLAY_MODE,
1866                LiveFolders.DISPLAY_MODE_GRID);
1867
1868        LauncherModel.addItemToDatabase(context, info, LauncherSettings.Favorites.CONTAINER_DESKTOP,
1869                screen, cellX, cellY, notify);
1870        sFolders.put(info.id, info);
1871
1872        return info;
1873    }
1874
1875    private void showNotifications() {
1876        final StatusBarManager statusBar = (StatusBarManager) getSystemService(STATUS_BAR_SERVICE);
1877        if (statusBar != null) {
1878            statusBar.expand();
1879        }
1880    }
1881
1882    private void startWallpaper() {
1883        showWorkspace(true);
1884        final Intent pickWallpaper = new Intent(Intent.ACTION_SET_WALLPAPER);
1885        Intent chooser = Intent.createChooser(pickWallpaper,
1886                getText(R.string.chooser_wallpaper));
1887        // NOTE: Adds a configure option to the chooser if the wallpaper supports it
1888        //       Removed in Eclair MR1
1889//        WallpaperManager wm = (WallpaperManager)
1890//                getSystemService(Context.WALLPAPER_SERVICE);
1891//        WallpaperInfo wi = wm.getWallpaperInfo();
1892//        if (wi != null && wi.getSettingsActivity() != null) {
1893//            LabeledIntent li = new LabeledIntent(getPackageName(),
1894//                    R.string.configure_wallpaper, 0);
1895//            li.setClassName(wi.getPackageName(), wi.getSettingsActivity());
1896//            chooser.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Intent[] { li });
1897//        }
1898        startActivityForResult(chooser, REQUEST_PICK_WALLPAPER);
1899    }
1900
1901    /**
1902     * Registers various content observers. The current implementation registers
1903     * only a favorites observer to keep track of the favorites applications.
1904     */
1905    private void registerContentObservers() {
1906        ContentResolver resolver = getContentResolver();
1907        resolver.registerContentObserver(LauncherProvider.CONTENT_APPWIDGET_RESET_URI,
1908                true, mWidgetObserver);
1909    }
1910
1911    @Override
1912    public boolean dispatchKeyEvent(KeyEvent event) {
1913        if (event.getAction() == KeyEvent.ACTION_DOWN) {
1914            switch (event.getKeyCode()) {
1915                case KeyEvent.KEYCODE_HOME:
1916                    return true;
1917                case KeyEvent.KEYCODE_VOLUME_DOWN:
1918                    if (SystemProperties.getInt("debug.launcher2.dumpstate", 0) != 0) {
1919                        dumpState();
1920                        return true;
1921                    }
1922                    break;
1923            }
1924        } else if (event.getAction() == KeyEvent.ACTION_UP) {
1925            switch (event.getKeyCode()) {
1926                case KeyEvent.KEYCODE_HOME:
1927                    return true;
1928            }
1929        }
1930
1931        return super.dispatchKeyEvent(event);
1932    }
1933
1934    @Override
1935    public void onBackPressed() {
1936        if (mState == State.ALL_APPS || mState == State.CUSTOMIZE) {
1937            showWorkspace(true);
1938        } else {
1939            closeFolder();
1940        }
1941        // Some launcher layouts don't have a previous and next view
1942        if (mPreviousView != null) {
1943            dismissPreview(mPreviousView);
1944            dismissPreview(mNextView);
1945        }
1946    }
1947
1948    private void closeFolder() {
1949        Folder folder = mWorkspace.getOpenFolder();
1950        if (folder != null) {
1951            closeFolder(folder);
1952        }
1953    }
1954
1955    void closeFolder(Folder folder) {
1956        folder.getInfo().opened = false;
1957        ViewGroup parent = (ViewGroup) folder.getParent().getParent();
1958        if (parent != null) {
1959            CellLayout cl = (CellLayout) parent;
1960            cl.removeViewWithoutMarkingCells(folder);
1961            if (folder instanceof DropTarget) {
1962                // Live folders aren't DropTargets.
1963                mDragController.removeDropTarget((DropTarget)folder);
1964            }
1965        }
1966        folder.onClose();
1967    }
1968
1969    /**
1970     * Re-listen when widgets are reset.
1971     */
1972    private void onAppWidgetReset() {
1973        mAppWidgetHost.startListening();
1974    }
1975
1976    /**
1977     * Go through the and disconnect any of the callbacks in the drawables and the views or we
1978     * leak the previous Home screen on orientation change.
1979     */
1980    private void unbindDesktopItems() {
1981        for (ItemInfo item: mDesktopItems) {
1982            item.unbind();
1983        }
1984        mDesktopItems.clear();
1985    }
1986
1987    /**
1988     * Launches the intent referred by the clicked shortcut.
1989     *
1990     * @param v The view representing the clicked shortcut.
1991     */
1992    public void onClick(View v) {
1993        Object tag = v.getTag();
1994        if (tag instanceof ShortcutInfo) {
1995            // Open shortcut
1996            final Intent intent = ((ShortcutInfo) tag).intent;
1997            int[] pos = new int[2];
1998            v.getLocationOnScreen(pos);
1999            intent.setSourceBounds(new Rect(pos[0], pos[1],
2000                    pos[0] + v.getWidth(), pos[1] + v.getHeight()));
2001            startActivitySafely(intent, tag);
2002        } else if (tag instanceof FolderInfo) {
2003            handleFolderClick((FolderInfo) tag);
2004        } else if (v == mHandleView) {
2005            if (mState == State.ALL_APPS) {
2006                showWorkspace(true);
2007            } else {
2008                showAllApps(true);
2009            }
2010        }
2011    }
2012
2013    public boolean onTouch(View v, MotionEvent event) {
2014        // this is an intercepted event being forwarded from mWorkspace;
2015        // clicking anywhere on the workspace causes the customization drawer to slide down
2016        showWorkspace(true);
2017        return false;
2018    }
2019
2020    /**
2021     * Event handler for the search button
2022     *
2023     * @param v The view that was clicked.
2024     */
2025    public void onClickSearchButton(View v) {
2026        startSearch(null, false, null, true);
2027        // Use a custom animation for launching search
2028        overridePendingTransition(R.anim.fade_in_fast, R.anim.fade_out_fast);
2029    }
2030
2031    /**
2032     * Event handler for the voice button
2033     *
2034     * @param v The view that was clicked.
2035     */
2036    public void onClickVoiceButton(View v) {
2037        startVoiceSearch();
2038    }
2039
2040    private void startVoiceSearch() {
2041        Intent intent = new Intent(RecognizerIntent.ACTION_WEB_SEARCH);
2042        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
2043        startActivity(intent);
2044    }
2045
2046    /**
2047     * Event handler for the "gear" button that appears on the home screen, which
2048     * enters home screen customization mode.
2049     *
2050     * @param v The view that was clicked.
2051     */
2052    public void onClickConfigureButton(View v) {
2053        addItems();
2054    }
2055
2056    /**
2057     * Event handler for the "grid" button that appears on the home screen, which
2058     * enters all apps mode.
2059     *
2060     * @param v The view that was clicked.
2061     */
2062    public void onClickAllAppsButton(View v) {
2063        showAllApps(true);
2064    }
2065
2066    public void onClickAppMarketButton(View v) {
2067        if (mAppMarketIntent != null) {
2068            startActivitySafely(mAppMarketIntent, "app market");
2069        }
2070    }
2071
2072    void startApplicationDetailsActivity(ComponentName componentName) {
2073        String packageName = componentName.getPackageName();
2074        Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS,
2075                Uri.fromParts("package", packageName, null));
2076        startActivity(intent);
2077    }
2078
2079    void startApplicationUninstallActivity(ApplicationInfo appInfo) {
2080        if ((appInfo.flags & ApplicationInfo.DOWNLOADED_FLAG) == 0) {
2081            // System applications cannot be installed. For now, show a toast explaining that.
2082            // We may give them the option of disabling apps this way.
2083            int messageId = R.string.uninstall_system_app_text;
2084            Toast.makeText(this, messageId, Toast.LENGTH_SHORT).show();
2085        } else {
2086            String packageName = appInfo.componentName.getPackageName();
2087            String className = appInfo.componentName.getClassName();
2088            Intent intent = new Intent(
2089                    Intent.ACTION_DELETE, Uri.fromParts("package", packageName, className));
2090            startActivity(intent);
2091        }
2092    }
2093
2094    void startActivitySafely(Intent intent, Object tag) {
2095        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
2096        try {
2097            startActivity(intent);
2098        } catch (ActivityNotFoundException e) {
2099            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
2100            Log.e(TAG, "Unable to launch. tag=" + tag + " intent=" + intent, e);
2101        } catch (SecurityException e) {
2102            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
2103            Log.e(TAG, "Launcher does not have the permission to launch " + intent +
2104                    ". Make sure to create a MAIN intent-filter for the corresponding activity " +
2105                    "or use the exported attribute for this activity. "
2106                    + "tag="+ tag + " intent=" + intent, e);
2107        }
2108    }
2109
2110    void startActivityForResultSafely(Intent intent, int requestCode) {
2111        try {
2112            startActivityForResult(intent, requestCode);
2113        } catch (ActivityNotFoundException e) {
2114            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
2115        } catch (SecurityException e) {
2116            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
2117            Log.e(TAG, "Launcher does not have the permission to launch " + intent +
2118                    ". Make sure to create a MAIN intent-filter for the corresponding activity " +
2119                    "or use the exported attribute for this activity.", e);
2120        }
2121    }
2122
2123    private void handleFolderClick(FolderInfo folderInfo) {
2124        if (!folderInfo.opened) {
2125            // Close any open folder
2126            closeFolder();
2127            // Open the requested folder
2128            openFolder(folderInfo);
2129        } else {
2130            // Find the open folder...
2131            Folder openFolder = mWorkspace.getFolderForTag(folderInfo);
2132            int folderScreen;
2133            if (openFolder != null) {
2134                folderScreen = mWorkspace.getPageForView(openFolder);
2135                // .. and close it
2136                closeFolder(openFolder);
2137                if (folderScreen != mWorkspace.getCurrentPage()) {
2138                    // Close any folder open on the current screen
2139                    closeFolder();
2140                    // Pull the folder onto this screen
2141                    openFolder(folderInfo);
2142                }
2143            }
2144        }
2145    }
2146
2147    /**
2148     * Opens the user folder described by the specified tag. The opening of the folder
2149     * is animated relative to the specified View. If the View is null, no animation
2150     * is played.
2151     *
2152     * @param folderInfo The FolderInfo describing the folder to open.
2153     */
2154    public void openFolder(FolderInfo folderInfo) {
2155        Folder openFolder;
2156
2157        if (folderInfo instanceof UserFolderInfo) {
2158            openFolder = UserFolder.fromXml(this);
2159        } else if (folderInfo instanceof LiveFolderInfo) {
2160            openFolder = com.android.launcher2.LiveFolder.fromXml(this, folderInfo);
2161        } else {
2162            return;
2163        }
2164
2165        openFolder.setDragController(mDragController);
2166        openFolder.setLauncher(this);
2167
2168        openFolder.bind(folderInfo);
2169        folderInfo.opened = true;
2170
2171        mWorkspace.addInFullScreen(openFolder, folderInfo.screen);
2172
2173        openFolder.onOpen();
2174    }
2175
2176    public boolean onLongClick(View v) {
2177        switch (v.getId()) {
2178            case R.id.previous_screen:
2179                if (mState != State.ALL_APPS) {
2180                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
2181                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
2182                    showPreviews(v);
2183                }
2184                return true;
2185            case R.id.next_screen:
2186                if (mState != State.ALL_APPS) {
2187                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
2188                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
2189                    showPreviews(v);
2190                }
2191                return true;
2192            case R.id.all_apps_button:
2193                if (mState != State.ALL_APPS) {
2194                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
2195                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
2196                    showPreviews(v);
2197                }
2198                return true;
2199        }
2200
2201        if (isWorkspaceLocked()) {
2202            return false;
2203        }
2204
2205        if (!(v instanceof CellLayout)) {
2206            v = (View) v.getParent().getParent();
2207        }
2208
2209
2210        resetAddInfo();
2211        CellLayout.CellInfo longClickCellInfo = (CellLayout.CellInfo) v.getTag();
2212        // This happens when long clicking an item with the dpad/trackball
2213        if (longClickCellInfo == null || !longClickCellInfo.valid) {
2214            return true;
2215        }
2216
2217        final View itemUnderLongClick = longClickCellInfo.cell;
2218
2219        if (mWorkspace.allowLongPress() && !mDragController.isDragging()) {
2220            if (itemUnderLongClick == null) {
2221                // User long pressed on empty space
2222                mWorkspace.setAllowLongPress(false);
2223                mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
2224                        HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
2225                if (LauncherApplication.isScreenXLarge()) {
2226                    addItems();
2227                } else {
2228                    showAddDialog(longClickCellInfo.cellX, longClickCellInfo.cellY);
2229                }
2230            } else {
2231                if (!(itemUnderLongClick instanceof Folder)) {
2232                    // User long pressed on an item
2233                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
2234                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
2235                    mAddIntersectCellX = longClickCellInfo.cellX;
2236                    mAddIntersectCellY = longClickCellInfo.cellY;
2237                    mWorkspace.startDrag(longClickCellInfo);
2238                }
2239            }
2240        }
2241        return true;
2242    }
2243
2244    @SuppressWarnings({"unchecked"})
2245    private void dismissPreview(final View v) {
2246        final PopupWindow window = (PopupWindow) v.getTag();
2247        if (window != null) {
2248            window.setOnDismissListener(new PopupWindow.OnDismissListener() {
2249                public void onDismiss() {
2250                    ViewGroup group = (ViewGroup) v.getTag(R.id.workspace);
2251                    int count = group.getChildCount();
2252                    for (int i = 0; i < count; i++) {
2253                        ((ImageView) group.getChildAt(i)).setImageDrawable(null);
2254                    }
2255                    ArrayList<Bitmap> bitmaps = (ArrayList<Bitmap>) v.getTag(R.id.icon);
2256                    for (Bitmap bitmap : bitmaps) bitmap.recycle();
2257
2258                    v.setTag(R.id.workspace, null);
2259                    v.setTag(R.id.icon, null);
2260                    window.setOnDismissListener(null);
2261                }
2262            });
2263            window.dismiss();
2264        }
2265        v.setTag(null);
2266    }
2267
2268    private void showPreviews(View anchor) {
2269        showPreviews(anchor, 0, mWorkspace.getChildCount());
2270    }
2271
2272    private void showPreviews(final View anchor, int start, int end) {
2273        final Resources resources = getResources();
2274        final Workspace workspace = mWorkspace;
2275
2276        CellLayout cell = ((CellLayout) workspace.getChildAt(start));
2277
2278        float max = workspace.getChildCount();
2279
2280        final Rect r = new Rect();
2281        resources.getDrawable(R.drawable.preview_background).getPadding(r);
2282        int extraW = (int) ((r.left + r.right) * max);
2283        int extraH = r.top + r.bottom;
2284
2285        int aW = cell.getWidth() - extraW;
2286        float w = aW / max;
2287
2288        int width = cell.getWidth();
2289        int height = cell.getHeight();
2290        int x = cell.getLeftPadding();
2291        int y = cell.getTopPadding();
2292        width -= (x + cell.getRightPadding());
2293        height -= (y + cell.getBottomPadding());
2294
2295        float scale = w / width;
2296
2297        int count = end - start;
2298
2299        final float sWidth = width * scale;
2300        float sHeight = height * scale;
2301
2302        LinearLayout preview = new LinearLayout(this);
2303
2304        PreviewTouchHandler handler = new PreviewTouchHandler(anchor);
2305        ArrayList<Bitmap> bitmaps = new ArrayList<Bitmap>(count);
2306
2307        for (int i = start; i < end; i++) {
2308            ImageView image = new ImageView(this);
2309            cell = (CellLayout) workspace.getChildAt(i);
2310
2311            final Bitmap bitmap = Bitmap.createBitmap((int) sWidth, (int) sHeight,
2312                    Bitmap.Config.ARGB_8888);
2313
2314            final Canvas c = new Canvas(bitmap);
2315            c.scale(scale, scale);
2316            c.translate(-cell.getLeftPadding(), -cell.getTopPadding());
2317            cell.drawChildren(c);
2318
2319            image.setBackgroundDrawable(resources.getDrawable(R.drawable.preview_background));
2320            image.setImageBitmap(bitmap);
2321            image.setTag(i);
2322            image.setOnClickListener(handler);
2323            image.setOnFocusChangeListener(handler);
2324            image.setFocusable(true);
2325            if (i == mWorkspace.getCurrentPage()) image.requestFocus();
2326
2327            preview.addView(image,
2328                    LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
2329
2330            bitmaps.add(bitmap);
2331        }
2332
2333        final PopupWindow p = new PopupWindow(this);
2334        p.setContentView(preview);
2335        p.setWidth((int) (sWidth * count + extraW));
2336        p.setHeight((int) (sHeight + extraH));
2337        p.setAnimationStyle(R.style.AnimationPreview);
2338        p.setOutsideTouchable(true);
2339        p.setFocusable(true);
2340        p.setBackgroundDrawable(new ColorDrawable(0));
2341        p.showAsDropDown(anchor, 0, 0);
2342
2343        p.setOnDismissListener(new PopupWindow.OnDismissListener() {
2344            public void onDismiss() {
2345                dismissPreview(anchor);
2346            }
2347        });
2348
2349        anchor.setTag(p);
2350        anchor.setTag(R.id.workspace, preview);
2351        anchor.setTag(R.id.icon, bitmaps);
2352    }
2353
2354    class PreviewTouchHandler implements View.OnClickListener, Runnable, View.OnFocusChangeListener {
2355        private final View mAnchor;
2356
2357        public PreviewTouchHandler(View anchor) {
2358            mAnchor = anchor;
2359        }
2360
2361        public void onClick(View v) {
2362            mWorkspace.snapToPage((Integer) v.getTag());
2363            v.post(this);
2364        }
2365
2366        public void run() {
2367            dismissPreview(mAnchor);
2368        }
2369
2370        public void onFocusChange(View v, boolean hasFocus) {
2371            if (hasFocus) {
2372                mWorkspace.snapToPage((Integer) v.getTag());
2373            }
2374        }
2375    }
2376
2377    Workspace getWorkspace() {
2378        return mWorkspace;
2379    }
2380
2381    @Override
2382    protected Dialog onCreateDialog(int id) {
2383        switch (id) {
2384            case DIALOG_CREATE_SHORTCUT:
2385                return new CreateShortcut().createDialog();
2386            case DIALOG_RENAME_FOLDER:
2387                return new RenameFolder().createDialog();
2388        }
2389
2390        return super.onCreateDialog(id);
2391    }
2392
2393    @Override
2394    protected void onPrepareDialog(int id, Dialog dialog) {
2395        switch (id) {
2396            case DIALOG_CREATE_SHORTCUT:
2397                break;
2398            case DIALOG_RENAME_FOLDER:
2399                if (mFolderInfo != null) {
2400                    EditText input = (EditText) dialog.findViewById(R.id.folder_name);
2401                    final CharSequence text = mFolderInfo.title;
2402                    input.setText(text);
2403                    input.setSelection(0, text.length());
2404                }
2405                break;
2406        }
2407    }
2408
2409    void showRenameDialog(FolderInfo info) {
2410        mFolderInfo = info;
2411        mWaitingForResult = true;
2412        showDialog(DIALOG_RENAME_FOLDER);
2413    }
2414
2415    private void showAddDialog(int intersectX, int intersectY) {
2416        resetAddInfo();
2417        mAddIntersectCellX = intersectX;
2418        mAddIntersectCellY = intersectY;
2419        mAddScreen = mWorkspace.getCurrentPage();
2420        mWaitingForResult = true;
2421        showDialog(DIALOG_CREATE_SHORTCUT);
2422    }
2423
2424    private void pickShortcut() {
2425        // Insert extra item to handle picking application
2426        Bundle bundle = new Bundle();
2427
2428        ArrayList<String> shortcutNames = new ArrayList<String>();
2429        shortcutNames.add(getString(R.string.group_applications));
2430        bundle.putStringArrayList(Intent.EXTRA_SHORTCUT_NAME, shortcutNames);
2431
2432        ArrayList<ShortcutIconResource> shortcutIcons = new ArrayList<ShortcutIconResource>();
2433        shortcutIcons.add(ShortcutIconResource.fromContext(Launcher.this,
2434                        R.drawable.ic_launcher_application));
2435        bundle.putParcelableArrayList(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, shortcutIcons);
2436
2437        Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
2438        pickIntent.putExtra(Intent.EXTRA_INTENT, new Intent(Intent.ACTION_CREATE_SHORTCUT));
2439        pickIntent.putExtra(Intent.EXTRA_TITLE, getText(R.string.title_select_shortcut));
2440        pickIntent.putExtras(bundle);
2441
2442        startActivityForResult(pickIntent, REQUEST_PICK_SHORTCUT);
2443    }
2444
2445    private class RenameFolder {
2446        private EditText mInput;
2447
2448        Dialog createDialog() {
2449            final View layout = View.inflate(Launcher.this, R.layout.rename_folder, null);
2450            mInput = (EditText) layout.findViewById(R.id.folder_name);
2451
2452            AlertDialog.Builder builder = new AlertDialog.Builder(Launcher.this);
2453            builder.setIcon(0);
2454            builder.setTitle(getString(R.string.rename_folder_title));
2455            builder.setCancelable(true);
2456            builder.setOnCancelListener(new Dialog.OnCancelListener() {
2457                public void onCancel(DialogInterface dialog) {
2458                    cleanup();
2459                }
2460            });
2461            builder.setNegativeButton(getString(R.string.cancel_action),
2462                new Dialog.OnClickListener() {
2463                    public void onClick(DialogInterface dialog, int which) {
2464                        cleanup();
2465                    }
2466                }
2467            );
2468            builder.setPositiveButton(getString(R.string.rename_action),
2469                new Dialog.OnClickListener() {
2470                    public void onClick(DialogInterface dialog, int which) {
2471                        changeFolderName();
2472                    }
2473                }
2474            );
2475            builder.setView(layout);
2476
2477            final AlertDialog dialog = builder.create();
2478            dialog.setOnShowListener(new DialogInterface.OnShowListener() {
2479                public void onShow(DialogInterface dialog) {
2480                    mWaitingForResult = true;
2481                    mInput.requestFocus();
2482                    InputMethodManager inputManager = (InputMethodManager)
2483                            getSystemService(Context.INPUT_METHOD_SERVICE);
2484                    inputManager.showSoftInput(mInput, 0);
2485                }
2486            });
2487
2488            return dialog;
2489        }
2490
2491        private void changeFolderName() {
2492            final String name = mInput.getText().toString();
2493            if (!TextUtils.isEmpty(name)) {
2494                // Make sure we have the right folder info
2495                mFolderInfo = sFolders.get(mFolderInfo.id);
2496                mFolderInfo.title = name;
2497                LauncherModel.updateItemInDatabase(Launcher.this, mFolderInfo);
2498
2499                if (mWorkspaceLoading) {
2500                    lockAllApps();
2501                    mModel.startLoader(Launcher.this, false);
2502                } else {
2503                    final FolderIcon folderIcon = (FolderIcon)
2504                            mWorkspace.getViewForTag(mFolderInfo);
2505                    if (folderIcon != null) {
2506                        folderIcon.setText(name);
2507                        getWorkspace().requestLayout();
2508                    } else {
2509                        lockAllApps();
2510                        mWorkspaceLoading = true;
2511                        mModel.startLoader(Launcher.this, false);
2512                    }
2513                }
2514            }
2515            cleanup();
2516        }
2517
2518        private void cleanup() {
2519            dismissDialog(DIALOG_RENAME_FOLDER);
2520            mWaitingForResult = false;
2521            mFolderInfo = null;
2522        }
2523    }
2524
2525    // Now a part of LauncherModel.Callbacks. Used to reorder loading steps.
2526    public boolean isAllAppsVisible() {
2527        return mState == State.ALL_APPS;
2528    }
2529
2530    // AllAppsView.Watcher
2531    public void zoomed(float zoom) {
2532        // In XLarge view, we zoom down the workspace below all apps so it's still visible
2533        if (zoom == 1.0f && !LauncherApplication.isScreenXLarge()) {
2534            mWorkspace.setVisibility(View.GONE);
2535        }
2536    }
2537
2538    private void showToolbarButton(View button) {
2539        button.setAlpha(1.0f);
2540        button.setVisibility(View.VISIBLE);
2541        button.setFocusable(true);
2542        button.setClickable(true);
2543    }
2544
2545    private void hideToolbarButton(View button) {
2546        button.setAlpha(0.0f);
2547        // We can't set it to GONE, otherwise the RelativeLayout gets screwed up
2548        button.setVisibility(View.INVISIBLE);
2549        button.setFocusable(false);
2550        button.setClickable(false);
2551    }
2552
2553    /**
2554     * Helper function for showing or hiding a toolbar button, possibly animated.
2555     *
2556     * @param show If true, create an animation to the show the item. Otherwise, hide it.
2557     * @param view The toolbar button to be animated
2558     * @param seq A AnimatorSet that will be used to animate the transition. If null, the
2559     * transition will not be animated.
2560     */
2561    private void hideOrShowToolbarButton(boolean show, final View view, AnimatorSet seq) {
2562        final boolean showing = show;
2563        final boolean hiding = !show;
2564
2565        final int duration = show ?
2566                getResources().getInteger(R.integer.config_toolbarButtonFadeInTime) :
2567                getResources().getInteger(R.integer.config_toolbarButtonFadeOutTime);
2568
2569        if (seq != null) {
2570            Animator anim = ObjectAnimator.ofFloat(view, "alpha", show ? 1.0f : 0.0f);
2571            anim.setDuration(duration);
2572            anim.addListener(new AnimatorListenerAdapter() {
2573                @Override
2574                public void onAnimationStart(Animator animation) {
2575                    if (showing) showToolbarButton(view);
2576                }
2577                @Override
2578                public void onAnimationEnd(Animator animation) {
2579                    if (hiding) hideToolbarButton(view);
2580                }
2581            });
2582            seq.play(anim);
2583        } else {
2584            if (showing) {
2585                showToolbarButton(view);
2586            } else {
2587                hideToolbarButton(view);
2588            }
2589        }
2590    }
2591
2592    /**
2593     * Show/hide the appropriate toolbar buttons for newState.
2594     * If showSeq or hideSeq is null, the transition will be done immediately (not animated).
2595     *
2596     * @param newState The state that is being switched to
2597     * @param showSeq AnimatorSet in which to put "show" animations, or null.
2598     * @param hideSeq AnimatorSet in which to put "hide" animations, or null.
2599     */
2600    private void hideAndShowToolbarButtons(State newState, AnimatorSet showSeq, AnimatorSet hideSeq) {
2601        final View buttonCluster = findViewById(R.id.all_apps_button_cluster);
2602
2603        final View allAppsButton = findViewById(R.id.all_apps_button);
2604        final View divider = findViewById(R.id.divider);
2605        final View configureButton = findViewById(R.id.configure_button);
2606
2607        switch (newState) {
2608        case WORKSPACE:
2609            hideOrShowToolbarButton(true, buttonCluster, showSeq);
2610            mDeleteZone.setOverlappingViews(new View[] { allAppsButton, divider, configureButton });
2611            mDeleteZone.setDragAndDropEnabled(true);
2612            mDeleteZone.setText(getResources().getString(R.string.delete_zone_label_workspace));
2613            break;
2614        case ALL_APPS:
2615            hideOrShowToolbarButton(false, buttonCluster, hideSeq);
2616            mDeleteZone.setDragAndDropEnabled(false);
2617            mDeleteZone.setText(getResources().getString(R.string.delete_zone_label_all_apps));
2618            break;
2619        case CUSTOMIZE:
2620            hideOrShowToolbarButton(false, buttonCluster, hideSeq);
2621            mDeleteZone.setDragAndDropEnabled(false);
2622            break;
2623        }
2624    }
2625
2626    /**
2627     * Helper method for the cameraZoomIn/cameraZoomOut animations
2628     * @param view The view being animated
2629     * @param state The state that we are moving in or out of -- either ALL_APPS or CUSTOMIZE
2630     * @param scaleFactor The scale factor used for the zoom
2631     */
2632    private void setPivotsForZoom(View view, State state, float scaleFactor) {
2633        final int height = view.getHeight();
2634
2635        view.setPivotX(view.getWidth() / 2.0f);
2636        // Set pivotY so that at the starting zoom factor, the view is partially
2637        // visible. Modifying initialHeightFactor changes how much of the view is
2638        // initially showing, and hence the perceived angle from which the view enters.
2639        if (state == State.ALL_APPS) {
2640            final float initialHeightFactor = 0.165f;
2641            view.setPivotY((1 - initialHeightFactor) * height);
2642        } else {
2643            final float initialHeightFactor = 0.2f;
2644            view.setPivotY(-initialHeightFactor * height);
2645        }
2646    }
2647
2648    /**
2649     * Zoom the camera out from the workspace to reveal 'toView'.
2650     * Assumes that the view to show is anchored at either the very top or very bottom
2651     * of the screen.
2652     * @param toState The state to zoom out to. Must be ALL_APPS or CUSTOMIZE.
2653     */
2654    private void cameraZoomOut(State toState, boolean animated) {
2655        final Resources res = getResources();
2656        final boolean toAllApps = (toState == State.ALL_APPS);
2657
2658        final int duration = toAllApps ?
2659                res.getInteger(R.integer.config_allAppsZoomInTime) :
2660                res.getInteger(R.integer.config_customizeZoomInTime);
2661
2662        final float scale = toAllApps ?
2663                (float) res.getInteger(R.integer.config_allAppsZoomScaleFactor) :
2664                (float) res.getInteger(R.integer.config_customizeZoomScaleFactor);
2665
2666        final View toView = toAllApps ? (View) mAllAppsGrid : mHomeCustomizationDrawer;
2667
2668        setPivotsForZoom(toView, toState, scale);
2669
2670        if (toAllApps) {
2671            mWorkspace.shrink(ShrinkState.BOTTOM_HIDDEN, animated);
2672        } else {
2673            mWorkspace.shrink(ShrinkState.TOP, animated);
2674        }
2675
2676        if (animated) {
2677            ValueAnimator scaleAnim = ObjectAnimator.ofPropertyValuesHolder(toView,
2678                    PropertyValuesHolder.ofFloat("scaleX", scale, 1.0f),
2679                    PropertyValuesHolder.ofFloat("scaleY", scale, 1.0f));
2680
2681            scaleAnim.setDuration(duration);
2682
2683            if (toAllApps) {
2684                toView.setAlpha(0f);
2685                ObjectAnimator alphaAnim = ObjectAnimator.ofPropertyValuesHolder(toView,
2686                        PropertyValuesHolder.ofFloat("alpha", 1.0f));
2687                alphaAnim.setInterpolator(new DecelerateInterpolator(1.0f));
2688                alphaAnim.setDuration(duration);
2689                alphaAnim.start();
2690            }
2691
2692            scaleAnim.setInterpolator(new Workspace.ZoomOutInterpolator());
2693            scaleAnim.addListener(new AnimatorListenerAdapter() {
2694                @Override
2695                public void onAnimationStart(Animator animation) {
2696                    // Prepare the position
2697                    toView.setTranslationX(0.0f);
2698                    toView.setTranslationY(0.0f);
2699                    toView.setVisibility(View.VISIBLE);
2700                    if (!toAllApps) {
2701                        toView.setAlpha(1.0f);
2702                    }
2703                }
2704                @Override
2705                public void onAnimationEnd(Animator animation) {
2706                    // If we don't set the final scale values here, if this animation is cancelled
2707                    // it will have the wrong scale value and subsequent cameraPan animations will
2708                    // not fix that
2709                    toView.setScaleX(1.0f);
2710                    toView.setScaleY(1.0f);
2711                }
2712            });
2713
2714            AnimatorSet toolbarHideAnim = new AnimatorSet();
2715            AnimatorSet toolbarShowAnim = new AnimatorSet();
2716            hideAndShowToolbarButtons(toState, toolbarShowAnim, toolbarHideAnim);
2717
2718            // toView should appear right at the end of the workspace shrink animation
2719            final int startDelay = 0;
2720
2721            if (mStateAnimation != null) mStateAnimation.cancel();
2722            mStateAnimation = new AnimatorSet();
2723            mStateAnimation.playTogether(scaleAnim, toolbarHideAnim);
2724            mStateAnimation.play(scaleAnim).after(startDelay);
2725
2726            // Show the new toolbar buttons just as the main animation is ending
2727            final int fadeInTime = res.getInteger(R.integer.config_toolbarButtonFadeInTime);
2728            mStateAnimation.play(toolbarShowAnim).after(duration + startDelay - fadeInTime);
2729            mStateAnimation.start();
2730        } else {
2731            toView.setTranslationX(0.0f);
2732            toView.setTranslationY(0.0f);
2733            toView.setScaleX(1.0f);
2734            toView.setScaleY(1.0f);
2735            toView.setVisibility(View.VISIBLE);
2736            hideAndShowToolbarButtons(toState, null, null);
2737        }
2738    }
2739
2740    /**
2741     * Zoom the camera back into the workspace, hiding 'fromView'.
2742     * This is the opposite of cameraZoomOut.
2743     * @param fromState The current state (must be ALL_APPS or CUSTOMIZE).
2744     * @param animated If true, the transition will be animated.
2745     */
2746    private void cameraZoomIn(State fromState, boolean animated) {
2747        cameraZoomIn(fromState, animated, false);
2748    }
2749
2750    private void cameraZoomIn(State fromState, boolean animated, boolean springLoaded) {
2751        Resources res = getResources();
2752        final boolean fromAllApps = (fromState == State.ALL_APPS);
2753
2754        int duration = fromAllApps ?
2755            res.getInteger(R.integer.config_allAppsZoomOutTime) :
2756            res.getInteger(R.integer.config_customizeZoomOutTime);
2757
2758        float scaleFactor = fromAllApps ?
2759            (float) res.getInteger(R.integer.config_allAppsZoomScaleFactor) :
2760            (float) res.getInteger(R.integer.config_customizeZoomScaleFactor);
2761
2762        final View fromView = fromAllApps ? (View) mAllAppsGrid : mHomeCustomizationDrawer;
2763
2764        mCustomizePagedView.endChoiceMode();
2765        mAllAppsPagedView.endChoiceMode();
2766
2767        setPivotsForZoom(fromView, fromState, scaleFactor);
2768
2769        if (!springLoaded) {
2770            mWorkspace.unshrink(animated);
2771        }
2772
2773        if (animated) {
2774            if (mStateAnimation != null) mStateAnimation.cancel();
2775            mStateAnimation = new AnimatorSet();
2776            ValueAnimator scaleAnim = ObjectAnimator.ofPropertyValuesHolder(fromView,
2777                    PropertyValuesHolder.ofFloat("scaleX", scaleFactor),
2778                    PropertyValuesHolder.ofFloat("scaleY", scaleFactor));
2779            scaleAnim.setDuration(duration);
2780            scaleAnim.setInterpolator(new Workspace.ZoomInInterpolator());
2781
2782            ValueAnimator alphaAnim = ObjectAnimator.ofPropertyValuesHolder(fromView,
2783                    PropertyValuesHolder.ofFloat("alpha", 1.0f, 0.0f));
2784            alphaAnim.setDuration(res.getInteger(R.integer.config_allAppsFadeOutTime));
2785            alphaAnim.setInterpolator(new DecelerateInterpolator(2.0f));
2786            fromView.setLayerType(View.LAYER_TYPE_HARDWARE, null);
2787            alphaAnim.addListener(new AnimatorListenerAdapter() {
2788                @Override
2789                public void onAnimationEnd(Animator animation) {
2790                    fromView.setVisibility(View.GONE);
2791                    fromView.setLayerType(View.LAYER_TYPE_NONE, null);
2792                }
2793            });
2794
2795            AnimatorSet toolbarHideAnim = new AnimatorSet();
2796            AnimatorSet toolbarShowAnim = new AnimatorSet();
2797            if (!springLoaded) {
2798                hideAndShowToolbarButtons(State.WORKSPACE, toolbarShowAnim, toolbarHideAnim);
2799            }
2800
2801            mStateAnimation.playTogether(scaleAnim, toolbarHideAnim, alphaAnim);
2802
2803            // Show the new toolbar buttons at the very end of the whole animation
2804            final int fadeInTime = res.getInteger(R.integer.config_toolbarButtonFadeInTime);
2805            final int unshrinkTime = res.getInteger(R.integer.config_workspaceUnshrinkTime);
2806            mStateAnimation.play(toolbarShowAnim).after(unshrinkTime - fadeInTime);
2807            mStateAnimation.start();
2808        } else {
2809            fromView.setVisibility(View.GONE);
2810            if (!springLoaded) {
2811                hideAndShowToolbarButtons(State.WORKSPACE, null, null);
2812            }
2813        }
2814    }
2815
2816    /**
2817     * Pan the camera in the vertical plane between 'fromView' and 'toView'.
2818     * This is the transition used on xlarge screens to go between all apps and
2819     * the home customization drawer.
2820     * @param fromState The view to pan away from. Must be ALL_APPS or CUSTOMIZE.
2821     * @param toState The view to pan into the frame. Must be ALL_APPS or CUSTOMIZE.
2822     * @param animated If true, the transition will be animated.
2823     */
2824    private void cameraPan(State fromState, State toState, boolean animated) {
2825        final Resources res = getResources();
2826        final int duration = res.getInteger(R.integer.config_allAppsCameraPanTime);
2827        final int workspaceHeight = mWorkspace.getHeight();
2828
2829        final boolean fromAllApps = (fromState == State.ALL_APPS);
2830        final View fromView = fromAllApps ? (View) mAllAppsGrid : mHomeCustomizationDrawer;
2831        final View toView = fromAllApps ? mHomeCustomizationDrawer : (View) mAllAppsGrid;
2832
2833        final float fromViewStartY = fromAllApps ? 0.0f : fromView.getY();
2834        final float fromViewEndY = fromAllApps ? -fromView.getHeight() * 2 : workspaceHeight * 2;
2835        final float toViewStartY = fromAllApps ? workspaceHeight * 2 : -toView.getHeight() * 2;
2836        final float toViewEndY = fromAllApps ? workspaceHeight - toView.getHeight() : 0.0f;
2837
2838        mCustomizePagedView.endChoiceMode();
2839        mAllAppsPagedView.endChoiceMode();
2840
2841        if (toState == State.ALL_APPS) {
2842            mWorkspace.shrink(Workspace.ShrinkState.BOTTOM_HIDDEN, animated);
2843        } else {
2844            mWorkspace.shrink(Workspace.ShrinkState.TOP, animated);
2845        }
2846
2847        if (animated) {
2848            if (mStateAnimation != null) mStateAnimation.cancel();
2849            mStateAnimation = new AnimatorSet();
2850            mStateAnimation.addListener(new AnimatorListenerAdapter() {
2851                @Override
2852                public void onAnimationStart(Animator animation) {
2853                    toView.setVisibility(View.VISIBLE);
2854                    toView.setY(toViewStartY);
2855                    toView.setAlpha(1.0f);
2856                }
2857                @Override
2858                public void onAnimationEnd(Animator animation) {
2859                    fromView.setVisibility(View.GONE);
2860                }
2861            });
2862
2863            AnimatorSet toolbarHideAnim = new AnimatorSet();
2864            AnimatorSet toolbarShowAnim = new AnimatorSet();
2865            hideAndShowToolbarButtons(toState, toolbarShowAnim, toolbarHideAnim);
2866
2867            ObjectAnimator fromAnim = ObjectAnimator.ofFloat(fromView, "y",
2868                    fromViewStartY, fromViewEndY);
2869            fromAnim.setDuration(duration);
2870            ObjectAnimator toAnim = ObjectAnimator.ofPropertyValuesHolder(toView,
2871                    PropertyValuesHolder.ofFloat("y", toViewStartY, toViewEndY),
2872                    PropertyValuesHolder.ofFloat("scaleX", toView.getScaleX(), 1.0f),
2873                    PropertyValuesHolder.ofFloat("scaleY", toView.getScaleY(), 1.0f)
2874                    );
2875            fromAnim.setDuration(duration);
2876            mStateAnimation.playTogether(toolbarHideAnim, fromAnim, toAnim);
2877
2878            // Show the new toolbar buttons just as the main animation is ending
2879            final int fadeInTime = res.getInteger(R.integer.config_toolbarButtonFadeInTime);
2880            mStateAnimation.play(toolbarShowAnim).after(duration - fadeInTime);
2881            mStateAnimation.start();
2882        } else {
2883            fromView.setY(fromViewEndY);
2884            fromView.setVisibility(View.GONE);
2885            toView.setY(toViewEndY);
2886            toView.setScaleX(1.0f);
2887            toView.setScaleY(1.0f);
2888            toView.setVisibility(View.VISIBLE);
2889            hideAndShowToolbarButtons(toState, null, null);
2890        }
2891    }
2892
2893    void showAllApps(boolean animated) {
2894        if (mState == State.ALL_APPS) {
2895            return;
2896        }
2897
2898        if (LauncherApplication.isScreenXLarge()) {
2899            if (mState == State.CUSTOMIZE) {
2900                cameraPan(State.CUSTOMIZE, State.ALL_APPS, animated);
2901            } else {
2902                cameraZoomOut(State.ALL_APPS, animated);
2903            }
2904        } else {
2905            mAllAppsGrid.zoom(1.0f, animated);
2906        }
2907
2908        ((View) mAllAppsGrid).setFocusable(true);
2909        ((View) mAllAppsGrid).requestFocus();
2910
2911        // TODO: fade these two too
2912        mDeleteZone.setVisibility(View.GONE);
2913
2914        // Change the state *after* we've called all the transition code
2915        mState = State.ALL_APPS;
2916
2917        // send an accessibility event to announce the context change
2918        getWindow().getDecorView().sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_SELECTED);
2919    }
2920
2921    void showWorkspace(boolean animated) {
2922        showWorkspace(animated, null);
2923    }
2924
2925    void showWorkspace(boolean animated, CellLayout layout) {
2926        if (layout != null) {
2927            // always animated, but that's ok since we never specify a layout and
2928            // want no animation
2929            mWorkspace.unshrink(layout);
2930        } else {
2931            mWorkspace.unshrink(animated);
2932        }
2933        if (mState == State.ALL_APPS) {
2934            closeAllApps(animated);
2935        } else if (mState == State.CUSTOMIZE) {
2936            hideCustomizationDrawer(animated);
2937        }
2938
2939        // Change the state *after* we've called all the transition code
2940        mState = State.WORKSPACE;
2941
2942        // send an accessibility event to announce the context change
2943        getWindow().getDecorView().sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_SELECTED);
2944    }
2945
2946    void enterSpringLoadedDragMode(CellLayout layout) {
2947        mWorkspace.enterSpringLoadedDragMode(layout);
2948        if (mState == State.ALL_APPS) {
2949            cameraZoomIn(State.ALL_APPS, true, true);
2950            mState = State.ALL_APPS_SPRING_LOADED;
2951        } else if (mState == State.CUSTOMIZE) {
2952            cameraZoomIn(State.CUSTOMIZE, true, true);
2953            mState = State.CUSTOMIZE_SPRING_LOADED;
2954        }/* else {
2955            // we're already in spring loaded mode; don't do anything
2956        }*/
2957    }
2958
2959    void exitSpringLoadedDragMode() {
2960        if (mState == State.ALL_APPS_SPRING_LOADED) {
2961            mWorkspace.exitSpringLoadedDragMode(Workspace.ShrinkState.BOTTOM_VISIBLE);
2962            cameraZoomOut(State.ALL_APPS, true);
2963            mState = State.ALL_APPS;
2964        } else if (mState == State.CUSTOMIZE_SPRING_LOADED) {
2965            mWorkspace.exitSpringLoadedDragMode(Workspace.ShrinkState.TOP);
2966            cameraZoomOut(State.CUSTOMIZE, true);
2967            mState = State.CUSTOMIZE;
2968        }/* else {
2969            // we're not in spring loaded mode; don't do anything
2970        }*/
2971    }
2972
2973    /**
2974     * Things to test when changing this code.
2975     *   - Home from workspace
2976     *          - from center screen
2977     *          - from other screens
2978     *   - Home from all apps
2979     *          - from center screen
2980     *          - from other screens
2981     *   - Back from all apps
2982     *          - from center screen
2983     *          - from other screens
2984     *   - Launch app from workspace and quit
2985     *          - with back
2986     *          - with home
2987     *   - Launch app from all apps and quit
2988     *          - with back
2989     *          - with home
2990     *   - Go to a screen that's not the default, then all
2991     *     apps, and launch and app, and go back
2992     *          - with back
2993     *          -with home
2994     *   - On workspace, long press power and go back
2995     *          - with back
2996     *          - with home
2997     *   - On all apps, long press power and go back
2998     *          - with back
2999     *          - with home
3000     *   - On workspace, power off
3001     *   - On all apps, power off
3002     *   - Launch an app and turn off the screen while in that app
3003     *          - Go back with home key
3004     *          - Go back with back key  TODO: make this not go to workspace
3005     *          - From all apps
3006     *          - From workspace
3007     *   - Enter and exit car mode (becuase it causes an extra configuration changed)
3008     *          - From all apps
3009     *          - From the center workspace
3010     *          - From another workspace
3011     */
3012    void closeAllApps(boolean animated) {
3013        if (mState == State.ALL_APPS || mState == State.ALL_APPS_SPRING_LOADED) {
3014            mWorkspace.setVisibility(View.VISIBLE);
3015            if (LauncherApplication.isScreenXLarge()) {
3016                cameraZoomIn(State.ALL_APPS, animated);
3017            } else {
3018                mAllAppsGrid.zoom(0.0f, animated);
3019            }
3020            ((View)mAllAppsGrid).setFocusable(false);
3021            mWorkspace.getChildAt(mWorkspace.getCurrentPage()).requestFocus();
3022        }
3023    }
3024
3025    void lockAllApps() {
3026        // TODO
3027    }
3028
3029    void unlockAllApps() {
3030        // TODO
3031    }
3032
3033    // Show the customization drawer (only exists in x-large configuration)
3034    private void showCustomizationDrawer(boolean animated) {
3035        if (mState == State.ALL_APPS) {
3036            cameraPan(State.ALL_APPS, State.CUSTOMIZE, animated);
3037        } else {
3038            cameraZoomOut(State.CUSTOMIZE, animated);
3039        }
3040        // Change the state *after* we've called all the transition code
3041        mState = State.CUSTOMIZE;
3042    }
3043
3044    // Hide the customization drawer (only exists in x-large configuration)
3045    void hideCustomizationDrawer(boolean animated) {
3046        if (mState == State.CUSTOMIZE || mState == State.CUSTOMIZE_SPRING_LOADED) {
3047            cameraZoomIn(State.CUSTOMIZE, animated);
3048        }
3049    }
3050
3051    void addExternalItemToScreen(ItemInfo itemInfo, CellLayout layout) {
3052        if (!mWorkspace.addExternalItemToScreen(itemInfo, layout)) {
3053            showOutOfSpaceMessage();
3054        }
3055    }
3056
3057    void onWorkspaceClick(CellLayout layout) {
3058        showWorkspace(true, layout);
3059    }
3060
3061    // if successful in getting icon, return it; otherwise, set button to use default drawable
3062    private Drawable.ConstantState updateButtonWithIconFromExternalActivity(
3063            int buttonId, ComponentName activityName, int fallbackDrawableId) {
3064        ImageView button = (ImageView) findViewById(buttonId);
3065        Drawable toolbarIcon = null;
3066        try {
3067            PackageManager packageManager = getPackageManager();
3068            // Look for the toolbar icon specified in the activity meta-data
3069            Bundle metaData = packageManager.getActivityInfo(
3070                    activityName, PackageManager.GET_META_DATA).metaData;
3071            if (metaData != null) {
3072                int iconResId = metaData.getInt(TOOLBAR_ICON_METADATA_NAME);
3073                if (iconResId != 0) {
3074                    Resources res = packageManager.getResourcesForActivity(activityName);
3075                    toolbarIcon = res.getDrawable(iconResId);
3076                }
3077            }
3078        } catch (NameNotFoundException e) {
3079            // Do nothing
3080        }
3081        // If we were unable to find the icon via the meta-data, use a generic one
3082        if (toolbarIcon == null) {
3083            button.setImageResource(fallbackDrawableId);
3084            return null;
3085        } else {
3086            button.setImageDrawable(toolbarIcon);
3087            return toolbarIcon.getConstantState();
3088        }
3089    }
3090
3091    private void updateButtonWithDrawable(int buttonId, Drawable.ConstantState d) {
3092        ImageView button = (ImageView) findViewById(buttonId);
3093        button.setImageDrawable(d.newDrawable(getResources()));
3094    }
3095
3096    private void updateGlobalSearchIcon() {
3097        if (LauncherApplication.isScreenXLarge()) {
3098            final SearchManager searchManager =
3099                    (SearchManager) getSystemService(Context.SEARCH_SERVICE);
3100            ComponentName activityName = searchManager.getGlobalSearchActivity();
3101            if (activityName != null) {
3102                sGlobalSearchIcon = updateButtonWithIconFromExternalActivity(
3103                        R.id.search_button, activityName, R.drawable.ic_generic_search);
3104            } else {
3105                findViewById(R.id.search_button).setVisibility(View.GONE);
3106            }
3107        }
3108    }
3109
3110    private void updateGlobalSearchIcon(Drawable.ConstantState d) {
3111        updateButtonWithDrawable(R.id.search_button, d);
3112    }
3113
3114    private void updateVoiceSearchIcon() {
3115        if (LauncherApplication.isScreenXLarge()) {
3116            Intent intent = new Intent(RecognizerIntent.ACTION_WEB_SEARCH);
3117            ComponentName activityName = intent.resolveActivity(getPackageManager());
3118            if (activityName != null) {
3119                sVoiceSearchIcon = updateButtonWithIconFromExternalActivity(
3120                        R.id.voice_button, activityName, R.drawable.ic_voice_search);
3121            } else {
3122                findViewById(R.id.voice_button).setVisibility(View.GONE);
3123            }
3124        }
3125    }
3126
3127    private void updateVoiceSearchIcon(Drawable.ConstantState d) {
3128        updateButtonWithDrawable(R.id.voice_button, d);
3129    }
3130
3131    /**
3132     * Sets the app market icon (shown when all apps is visible on x-large screens)
3133     */
3134    private void updateAppMarketIcon() {
3135        if (LauncherApplication.isScreenXLarge()) {
3136            Intent intent = new Intent(Intent.ACTION_MAIN).addCategory(Intent.CATEGORY_APP_MARKET);
3137            // Find the app market activity by resolving an intent.
3138            // (If multiple app markets are installed, it will return the ResolverActivity.)
3139            ComponentName activityName = intent.resolveActivity(getPackageManager());
3140            if (activityName != null) {
3141                mAppMarketIntent = intent;
3142                sAppMarketIcon = updateButtonWithIconFromExternalActivity(
3143                        R.id.market_button, activityName, R.drawable.app_market_generic);
3144            }
3145        }
3146    }
3147
3148    private void updateAppMarketIcon(Drawable.ConstantState d) {
3149        updateButtonWithDrawable(R.id.market_button, d);
3150    }
3151
3152    /**
3153     * Displays the shortcut creation dialog and launches, if necessary, the
3154     * appropriate activity.
3155     */
3156    private class CreateShortcut implements DialogInterface.OnClickListener,
3157            DialogInterface.OnCancelListener, DialogInterface.OnDismissListener,
3158            DialogInterface.OnShowListener {
3159
3160        private AddAdapter mAdapter;
3161
3162        Dialog createDialog() {
3163            mAdapter = new AddAdapter(Launcher.this);
3164
3165            final AlertDialog.Builder builder = new AlertDialog.Builder(Launcher.this);
3166            builder.setTitle(getString(R.string.menu_item_add_item));
3167            builder.setAdapter(mAdapter, this);
3168
3169            builder.setInverseBackgroundForced(true);
3170
3171            AlertDialog dialog = builder.create();
3172            dialog.setOnCancelListener(this);
3173            dialog.setOnDismissListener(this);
3174            dialog.setOnShowListener(this);
3175
3176            return dialog;
3177        }
3178
3179        public void onCancel(DialogInterface dialog) {
3180            mWaitingForResult = false;
3181            cleanup();
3182        }
3183
3184        public void onDismiss(DialogInterface dialog) {
3185        }
3186
3187        private void cleanup() {
3188            try {
3189                dismissDialog(DIALOG_CREATE_SHORTCUT);
3190            } catch (Exception e) {
3191                // An exception is thrown if the dialog is not visible, which is fine
3192            }
3193        }
3194
3195        /**
3196         * Handle the action clicked in the "Add to home" dialog.
3197         */
3198        public void onClick(DialogInterface dialog, int which) {
3199            Resources res = getResources();
3200            cleanup();
3201
3202            switch (which) {
3203                case AddAdapter.ITEM_SHORTCUT: {
3204                    pickShortcut();
3205                    break;
3206                }
3207
3208                case AddAdapter.ITEM_APPWIDGET: {
3209                    int appWidgetId = Launcher.this.mAppWidgetHost.allocateAppWidgetId();
3210
3211                    Intent pickIntent = new Intent(AppWidgetManager.ACTION_APPWIDGET_PICK);
3212                    pickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
3213                    // start the pick activity
3214                    startActivityForResult(pickIntent, REQUEST_PICK_APPWIDGET);
3215                    break;
3216                }
3217
3218                case AddAdapter.ITEM_LIVE_FOLDER: {
3219                    // Insert extra item to handle inserting folder
3220                    Bundle bundle = new Bundle();
3221
3222                    ArrayList<String> shortcutNames = new ArrayList<String>();
3223                    shortcutNames.add(res.getString(R.string.group_folder));
3224                    bundle.putStringArrayList(Intent.EXTRA_SHORTCUT_NAME, shortcutNames);
3225
3226                    ArrayList<ShortcutIconResource> shortcutIcons =
3227                            new ArrayList<ShortcutIconResource>();
3228                    shortcutIcons.add(ShortcutIconResource.fromContext(Launcher.this,
3229                            R.drawable.ic_launcher_folder));
3230                    bundle.putParcelableArrayList(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, shortcutIcons);
3231
3232                    Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
3233                    pickIntent.putExtra(Intent.EXTRA_INTENT,
3234                            new Intent(LiveFolders.ACTION_CREATE_LIVE_FOLDER));
3235                    pickIntent.putExtra(Intent.EXTRA_TITLE,
3236                            getText(R.string.title_select_live_folder));
3237                    pickIntent.putExtras(bundle);
3238
3239                    startActivityForResult(pickIntent, REQUEST_PICK_LIVE_FOLDER);
3240                    break;
3241                }
3242
3243                case AddAdapter.ITEM_WALLPAPER: {
3244                    startWallpaper();
3245                    break;
3246                }
3247            }
3248        }
3249
3250        public void onShow(DialogInterface dialog) {
3251            mWaitingForResult = true;
3252        }
3253    }
3254
3255    /**
3256     * Receives notifications when applications are added/removed.
3257     */
3258    private class CloseSystemDialogsIntentReceiver extends BroadcastReceiver {
3259        @Override
3260        public void onReceive(Context context, Intent intent) {
3261            closeSystemDialogs();
3262            String reason = intent.getStringExtra("reason");
3263            if (!"homekey".equals(reason)) {
3264                boolean animate = true;
3265                if (mPaused || "lock".equals(reason)) {
3266                    animate = false;
3267                }
3268                showWorkspace(animate);
3269            }
3270        }
3271    }
3272
3273    /**
3274     * Receives notifications whenever the appwidgets are reset.
3275     */
3276    private class AppWidgetResetObserver extends ContentObserver {
3277        public AppWidgetResetObserver() {
3278            super(new Handler());
3279        }
3280
3281        @Override
3282        public void onChange(boolean selfChange) {
3283            onAppWidgetReset();
3284        }
3285    }
3286
3287    /**
3288     * If the activity is currently paused, signal that we need to re-run the loader
3289     * in onResume.
3290     *
3291     * This needs to be called from incoming places where resources might have been loaded
3292     * while we are paused.  That is becaues the Configuration might be wrong
3293     * when we're not running, and if it comes back to what it was when we
3294     * were paused, we are not restarted.
3295     *
3296     * Implementation of the method from LauncherModel.Callbacks.
3297     *
3298     * @return true if we are currently paused.  The caller might be able to
3299     * skip some work in that case since we will come back again.
3300     */
3301    public boolean setLoadOnResume() {
3302        if (mPaused) {
3303            Log.i(TAG, "setLoadOnResume");
3304            mOnResumeNeedsLoad = true;
3305            return true;
3306        } else {
3307            return false;
3308        }
3309    }
3310
3311    /**
3312     * Implementation of the method from LauncherModel.Callbacks.
3313     */
3314    public int getCurrentWorkspaceScreen() {
3315        if (mWorkspace != null) {
3316            return mWorkspace.getCurrentPage();
3317        } else {
3318            return SCREEN_COUNT / 2;
3319        }
3320    }
3321
3322    void setAllAppsPagedView(AllAppsPagedView view) {
3323        mAllAppsPagedView = view;
3324    }
3325
3326    /**
3327     * Refreshes the shortcuts shown on the workspace.
3328     *
3329     * Implementation of the method from LauncherModel.Callbacks.
3330     */
3331    public void startBinding() {
3332        final Workspace workspace = mWorkspace;
3333        int count = workspace.getChildCount();
3334        for (int i = 0; i < count; i++) {
3335            // Use removeAllViewsInLayout() to avoid an extra requestLayout() and invalidate().
3336            final CellLayout layoutParent = (CellLayout) workspace.getChildAt(i);
3337            layoutParent.removeAllViewsInLayout();
3338        }
3339
3340        if (DEBUG_USER_INTERFACE) {
3341            android.widget.Button finishButton = new android.widget.Button(this);
3342            finishButton.setText("Finish");
3343            workspace.addInScreen(finishButton, 1, 0, 0, 1, 1);
3344
3345            finishButton.setOnClickListener(new android.widget.Button.OnClickListener() {
3346                public void onClick(View v) {
3347                    finish();
3348                }
3349            });
3350        }
3351    }
3352
3353    /**
3354     * Bind the items start-end from the list.
3355     *
3356     * Implementation of the method from LauncherModel.Callbacks.
3357     */
3358    public void bindItems(ArrayList<ItemInfo> shortcuts, int start, int end) {
3359
3360        setLoadOnResume();
3361
3362        final Workspace workspace = mWorkspace;
3363
3364        for (int i=start; i<end; i++) {
3365            final ItemInfo item = shortcuts.get(i);
3366            mDesktopItems.add(item);
3367            switch (item.itemType) {
3368                case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
3369                case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
3370                    final View shortcut = createShortcut((ShortcutInfo)item);
3371                    workspace.addInScreen(shortcut, item.screen, item.cellX, item.cellY, 1, 1,
3372                            false);
3373                    break;
3374                case LauncherSettings.Favorites.ITEM_TYPE_USER_FOLDER:
3375                    final FolderIcon newFolder = FolderIcon.fromXml(R.layout.folder_icon, this,
3376                            (ViewGroup) workspace.getChildAt(workspace.getCurrentPage()),
3377                            (UserFolderInfo) item, mIconCache);
3378                    workspace.addInScreen(newFolder, item.screen, item.cellX, item.cellY, 1, 1,
3379                            false);
3380                    break;
3381                case LauncherSettings.Favorites.ITEM_TYPE_LIVE_FOLDER:
3382                    final FolderIcon newLiveFolder = LiveFolderIcon.fromXml(
3383                            R.layout.live_folder_icon, this,
3384                            (ViewGroup) workspace.getChildAt(workspace.getCurrentPage()),
3385                            (LiveFolderInfo) item);
3386                    workspace.addInScreen(newLiveFolder, item.screen, item.cellX, item.cellY, 1, 1,
3387                            false);
3388                    break;
3389            }
3390        }
3391
3392        workspace.requestLayout();
3393    }
3394
3395    /**
3396     * Implementation of the method from LauncherModel.Callbacks.
3397     */
3398    public void bindFolders(HashMap<Long, FolderInfo> folders) {
3399        setLoadOnResume();
3400        sFolders.clear();
3401        sFolders.putAll(folders);
3402    }
3403
3404    /**
3405     * Add the views for a widget to the workspace.
3406     *
3407     * Implementation of the method from LauncherModel.Callbacks.
3408     */
3409    public void bindAppWidget(LauncherAppWidgetInfo item) {
3410        setLoadOnResume();
3411
3412        final long start = DEBUG_WIDGETS ? SystemClock.uptimeMillis() : 0;
3413        if (DEBUG_WIDGETS) {
3414            Log.d(TAG, "bindAppWidget: " + item);
3415        }
3416        final Workspace workspace = mWorkspace;
3417
3418        final int appWidgetId = item.appWidgetId;
3419        final AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
3420        if (DEBUG_WIDGETS) {
3421            Log.d(TAG, "bindAppWidget: id=" + item.appWidgetId + " belongs to component " + appWidgetInfo.provider);
3422        }
3423
3424        item.hostView = mAppWidgetHost.createView(this, appWidgetId, appWidgetInfo);
3425
3426        item.hostView.setAppWidget(appWidgetId, appWidgetInfo);
3427        item.hostView.setTag(item);
3428
3429        workspace.addInScreen(item.hostView, item.screen, item.cellX,
3430                item.cellY, item.spanX, item.spanY, false);
3431
3432        addWidgetToAutoAdvanceIfNeeded(item.hostView, appWidgetInfo);
3433
3434        workspace.requestLayout();
3435
3436        mDesktopItems.add(item);
3437
3438        if (DEBUG_WIDGETS) {
3439            Log.d(TAG, "bound widget id="+item.appWidgetId+" in "
3440                    + (SystemClock.uptimeMillis()-start) + "ms");
3441        }
3442    }
3443
3444    /**
3445     * Callback saying that there aren't any more items to bind.
3446     *
3447     * Implementation of the method from LauncherModel.Callbacks.
3448     */
3449    public void finishBindingItems() {
3450        setLoadOnResume();
3451
3452        if (mSavedState != null) {
3453            if (!mWorkspace.hasFocus()) {
3454                mWorkspace.getChildAt(mWorkspace.getCurrentPage()).requestFocus();
3455            }
3456
3457            final long[] userFolders = mSavedState.getLongArray(RUNTIME_STATE_USER_FOLDERS);
3458            if (userFolders != null) {
3459                for (long folderId : userFolders) {
3460                    final FolderInfo info = sFolders.get(folderId);
3461                    if (info != null) {
3462                        openFolder(info);
3463                    }
3464                }
3465                final Folder openFolder = mWorkspace.getOpenFolder();
3466                if (openFolder != null) {
3467                    openFolder.requestFocus();
3468                }
3469            }
3470
3471            mSavedState = null;
3472        }
3473
3474        if (mSavedInstanceState != null) {
3475            super.onRestoreInstanceState(mSavedInstanceState);
3476            mSavedInstanceState = null;
3477        }
3478
3479        // Workaround a bug that occurs when rotating the device while the customization mode is
3480        // open, we trigger a new layout on all the CellLayout children.
3481        if (LauncherApplication.isScreenXLarge() && (mState == State.CUSTOMIZE)) {
3482            final int childCount = mWorkspace.getChildCount();
3483            for (int i = 0; i < childCount; ++i) {
3484                mWorkspace.getChildAt(i).requestLayout();
3485            }
3486        }
3487
3488        mWorkspaceLoading = false;
3489    }
3490
3491    /**
3492     * Updates the icons on the launcher that are affected by changes to the package list
3493     * on the device.
3494     */
3495    private void updateIconsAffectedByPackageManagerChanges() {
3496        updateAppMarketIcon();
3497        updateGlobalSearchIcon();
3498        updateVoiceSearchIcon();
3499    }
3500
3501    /**
3502     * Add the icons for all apps.
3503     *
3504     * Implementation of the method from LauncherModel.Callbacks.
3505     */
3506    public void bindAllApplications(ArrayList<ApplicationInfo> apps) {
3507        mAllAppsGrid.setApps(apps);
3508        if (mCustomizePagedView != null) {
3509            mCustomizePagedView.setApps(apps);
3510        }
3511        updateIconsAffectedByPackageManagerChanges();
3512    }
3513
3514    /**
3515     * A package was installed.
3516     *
3517     * Implementation of the method from LauncherModel.Callbacks.
3518     */
3519    public void bindAppsAdded(ArrayList<ApplicationInfo> apps) {
3520        setLoadOnResume();
3521        removeDialog(DIALOG_CREATE_SHORTCUT);
3522        mAllAppsGrid.addApps(apps);
3523        if (mCustomizePagedView != null) {
3524            mCustomizePagedView.addApps(apps);
3525        }
3526        updateIconsAffectedByPackageManagerChanges();
3527    }
3528
3529    /**
3530     * A package was updated.
3531     *
3532     * Implementation of the method from LauncherModel.Callbacks.
3533     */
3534    public void bindAppsUpdated(ArrayList<ApplicationInfo> apps) {
3535        setLoadOnResume();
3536        removeDialog(DIALOG_CREATE_SHORTCUT);
3537        mWorkspace.updateShortcuts(apps);
3538        mAllAppsGrid.updateApps(apps);
3539        if (mCustomizePagedView != null) {
3540            mCustomizePagedView.updateApps(apps);
3541        }
3542        updateIconsAffectedByPackageManagerChanges();
3543    }
3544
3545    /**
3546     * A package was uninstalled.
3547     *
3548     * Implementation of the method from LauncherModel.Callbacks.
3549     */
3550    public void bindAppsRemoved(ArrayList<ApplicationInfo> apps, boolean permanent) {
3551        removeDialog(DIALOG_CREATE_SHORTCUT);
3552        if (permanent) {
3553            mWorkspace.removeItems(apps);
3554        }
3555        mAllAppsGrid.removeApps(apps);
3556        if (mCustomizePagedView != null) {
3557            mCustomizePagedView.removeApps(apps);
3558        }
3559        updateIconsAffectedByPackageManagerChanges();
3560    }
3561
3562    /**
3563     * A number of packages were updated.
3564     */
3565    public void bindPackagesUpdated() {
3566        // update the customization drawer contents
3567        if (mCustomizePagedView != null) {
3568            mCustomizePagedView.update();
3569        }
3570    }
3571
3572    private int mapConfigurationOriActivityInfoOri(int configOri) {
3573        final Display d = getWindowManager().getDefaultDisplay();
3574        int naturalOri = Configuration.ORIENTATION_LANDSCAPE;
3575        switch (d.getRotation()) {
3576        case Surface.ROTATION_0:
3577        case Surface.ROTATION_180:
3578            // We are currently in the same basic orientation as the natural orientation
3579            naturalOri = configOri;
3580            break;
3581        case Surface.ROTATION_90:
3582        case Surface.ROTATION_270:
3583            // We are currently in the other basic orientation to the natural orientation
3584            naturalOri = (configOri == Configuration.ORIENTATION_LANDSCAPE) ?
3585                    Configuration.ORIENTATION_PORTRAIT : Configuration.ORIENTATION_LANDSCAPE;
3586            break;
3587        }
3588
3589        int[] oriMap = {
3590                ActivityInfo.SCREEN_ORIENTATION_PORTRAIT,
3591                ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE,
3592                ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT,
3593                ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE
3594        };
3595        // Since the map starts at portrait, we need to offset if this device's natural orientation
3596        // is landscape.
3597        int indexOffset = 0;
3598        if (naturalOri == Configuration.ORIENTATION_LANDSCAPE) {
3599            indexOffset = 1;
3600        }
3601        return oriMap[(d.getRotation() + indexOffset) % 4];
3602    }
3603    public void lockScreenOrientation() {
3604        setRequestedOrientation(mapConfigurationOriActivityInfoOri(getResources()
3605                .getConfiguration().orientation));
3606    }
3607    public void unlockScreenOrientation() {
3608        mHandler.postDelayed(new Runnable() {
3609            public void run() {
3610                setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
3611            }
3612        }, mRestoreScreenOrientationDelay);
3613    }
3614
3615    /**
3616     * Prints out out state for debugging.
3617     */
3618    public void dumpState() {
3619        Log.d(TAG, "BEGIN launcher2 dump state for launcher " + this);
3620        Log.d(TAG, "mSavedState=" + mSavedState);
3621        Log.d(TAG, "mWorkspaceLoading=" + mWorkspaceLoading);
3622        Log.d(TAG, "mRestoring=" + mRestoring);
3623        Log.d(TAG, "mWaitingForResult=" + mWaitingForResult);
3624        Log.d(TAG, "mSavedInstanceState=" + mSavedInstanceState);
3625        Log.d(TAG, "mDesktopItems.size=" + mDesktopItems.size());
3626        Log.d(TAG, "sFolders.size=" + sFolders.size());
3627        mModel.dumpState();
3628        mAllAppsGrid.dumpState();
3629        Log.d(TAG, "END launcher2 dump state");
3630    }
3631}
3632