Launcher.java revision f16e571330f030e445c4f7f63f55d093337ffd87 
1
2/*
3 * Copyright (C) 2008 The Android Open Source Project
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 *      http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18package com.android.launcher2;
19
20import com.android.common.Search;
21import com.android.launcher.R;
22import com.android.launcher2.CustomizePagedView.CustomizationType;
23import com.android.launcher2.Workspace.ShrinkState;
24
25import android.animation.Animator;
26import android.animation.AnimatorListenerAdapter;
27import android.animation.AnimatorSet;
28import android.animation.ObjectAnimator;
29import android.animation.PropertyValuesHolder;
30import android.animation.ValueAnimator;
31import android.app.Activity;
32import android.app.AlertDialog;
33import android.app.Dialog;
34import android.app.SearchManager;
35import android.app.StatusBarManager;
36import android.app.WallpaperManager;
37import android.appwidget.AppWidgetManager;
38import android.appwidget.AppWidgetProviderInfo;
39import android.content.ActivityNotFoundException;
40import android.content.BroadcastReceiver;
41import android.content.ClipData;
42import android.content.ClipDescription;
43import android.content.ComponentName;
44import android.content.ContentResolver;
45import android.content.Context;
46import android.content.DialogInterface;
47import android.content.Intent;
48import android.content.IntentFilter;
49import android.content.Intent.ShortcutIconResource;
50import android.content.pm.ActivityInfo;
51import android.content.pm.PackageManager;
52import android.content.pm.ResolveInfo;
53import android.content.pm.PackageManager.NameNotFoundException;
54import android.content.res.Configuration;
55import android.content.res.Resources;
56import android.content.res.TypedArray;
57import android.database.ContentObserver;
58import android.graphics.Bitmap;
59import android.graphics.Canvas;
60import android.graphics.Rect;
61import android.graphics.drawable.ColorDrawable;
62import android.graphics.drawable.Drawable;
63import android.net.Uri;
64import android.os.AsyncTask;
65import android.os.Bundle;
66import android.os.Environment;
67import android.os.Handler;
68import android.os.Message;
69import android.os.Parcelable;
70import android.os.SystemClock;
71import android.os.SystemProperties;
72import android.provider.LiveFolders;
73import android.provider.Settings;
74import android.speech.RecognizerIntent;
75import android.text.Selection;
76import android.text.SpannableStringBuilder;
77import android.text.TextUtils;
78import android.text.method.TextKeyListener;
79import android.util.Log;
80import android.view.Display;
81import android.view.HapticFeedbackConstants;
82import android.view.KeyEvent;
83import android.view.LayoutInflater;
84import android.view.Menu;
85import android.view.MenuItem;
86import android.view.MotionEvent;
87import android.view.View;
88import android.view.ViewGroup;
89import android.view.WindowManager;
90import android.view.View.OnLongClickListener;
91import android.view.accessibility.AccessibilityEvent;
92import android.view.animation.DecelerateInterpolator;
93import android.view.inputmethod.InputMethodManager;
94import android.widget.Advanceable;
95import android.widget.EditText;
96import android.widget.ImageView;
97import android.widget.LinearLayout;
98import android.widget.PopupWindow;
99import android.widget.TabHost;
100import android.widget.TabWidget;
101import android.widget.TextView;
102import android.widget.Toast;
103import android.widget.TabHost.OnTabChangeListener;
104import android.widget.TabHost.TabContentFactory;
105
106import java.io.DataInputStream;
107import java.io.DataOutputStream;
108import java.io.FileNotFoundException;
109import java.io.IOException;
110import java.util.ArrayList;
111import java.util.HashMap;
112import java.util.List;
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    // External icons saved in case of resource changes, orientation, etc.
268    private static Drawable.ConstantState sGlobalSearchIcon;
269    private static Drawable.ConstantState sVoiceSearchIcon;
270    private static Drawable.ConstantState sAppMarketIcon;
271
272    private CustomizationType getCustomizeFilterForTabTag(String tag) {
273        if (tag.equals(WIDGETS_TAG)) {
274            return CustomizationType.WidgetCustomization;
275        } else if (tag.equals(APPLICATIONS_TAG)) {
276            return CustomizationType.ApplicationCustomization;
277        } else if (tag.equals(WALLPAPERS_TAG)) {
278            return CustomizePagedView.CustomizationType.WallpaperCustomization;
279        } else if (tag.equals(SHORTCUTS_TAG)) {
280            return CustomizePagedView.CustomizationType.ShortcutCustomization;
281        }
282        return CustomizationType.WidgetCustomization;
283    }
284
285    @Override
286    protected void onCreate(Bundle savedInstanceState) {
287        super.onCreate(savedInstanceState);
288
289        if (LauncherApplication.isInPlaceRotationEnabled()) {
290            // hide the status bar (temporary until we get the status bar design figured out)
291            getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
292            this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR);
293        }
294
295        LauncherApplication app = ((LauncherApplication)getApplication());
296        mModel = app.setLauncher(this);
297        mIconCache = app.getIconCache();
298        mDragController = new DragController(this);
299        mInflater = getLayoutInflater();
300
301        mAppWidgetManager = AppWidgetManager.getInstance(this);
302        mAppWidgetHost = new LauncherAppWidgetHost(this, APPWIDGET_HOST_ID);
303        mAppWidgetHost.startListening();
304
305        if (PROFILE_STARTUP) {
306            android.os.Debug.startMethodTracing(
307                    Environment.getExternalStorageDirectory() + "/launcher");
308        }
309
310        loadHotseats();
311        checkForLocaleChange();
312        setWallpaperDimension();
313        setContentView(R.layout.launcher);
314        mHomeCustomizationDrawer = (TabHost) findViewById(R.id.customization_drawer);
315        if (mHomeCustomizationDrawer != null) {
316            mHomeCustomizationDrawer.setup();
317
318            // share the same customization workspace across all the tabs
319            mCustomizePagedView = (CustomizePagedView) mInflater.inflate(
320                    R.layout.customization_drawer, mHomeCustomizationDrawer, false);
321            TabContentFactory contentFactory = new TabContentFactory() {
322                public View createTabContent(String tag) {
323                    return mCustomizePagedView;
324                }
325            };
326
327
328            TextView tabView;
329            TabWidget tabWidget = (TabWidget)
330                    mHomeCustomizationDrawer.findViewById(com.android.internal.R.id.tabs);
331
332            tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false);
333            tabView.setText(getString(R.string.widgets_tab_label));
334            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec(WIDGETS_TAG)
335                    .setIndicator(tabView).setContent(contentFactory));
336            tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false);
337            tabView.setText(getString(R.string.applications_tab_label));
338            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec(APPLICATIONS_TAG)
339                    .setIndicator(tabView).setContent(contentFactory));
340            tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false);
341            tabView.setText(getString(R.string.wallpapers_tab_label));
342            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec(WALLPAPERS_TAG)
343                    .setIndicator(tabView).setContent(contentFactory));
344            tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false);
345            tabView.setText(getString(R.string.shortcuts_tab_label));
346            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec(SHORTCUTS_TAG)
347                    .setIndicator(tabView).setContent(contentFactory));
348            mHomeCustomizationDrawer.setOnTabChangedListener(new OnTabChangeListener() {
349                public void onTabChanged(String tabId) {
350                    final CustomizePagedView.CustomizationType newType =
351                        getCustomizeFilterForTabTag(tabId);
352                    if (newType != mCustomizePagedView.getCustomizationFilter()) {
353                        // animate the changing of the tab content by fading pages in and out
354                        final Resources res = getResources();
355                        final int duration = res.getInteger(R.integer.config_tabTransitionTime);
356                        final float alpha = mCustomizePagedView.getAlpha();
357                        ValueAnimator alphaAnim = ObjectAnimator.ofFloat(mCustomizePagedView,
358                                "alpha", alpha, 0.0f);
359                        alphaAnim.setDuration(duration);
360                        alphaAnim.addListener(new AnimatorListenerAdapter() {
361                            @Override
362                            public void onAnimationEnd(Animator animation) {
363                                String tag = mHomeCustomizationDrawer.getCurrentTabTag();
364                                mCustomizePagedView.setCustomizationFilter(newType);
365
366                                final float alpha = mCustomizePagedView.getAlpha();
367                                ValueAnimator alphaAnim = ObjectAnimator.ofFloat(
368                                        mCustomizePagedView, "alpha", alpha, 1.0f);
369                                alphaAnim.setDuration(duration);
370                                alphaAnim.start();
371                            }
372                        });
373                        alphaAnim.start();
374                    }
375                }
376            });
377        }
378        setupViews();
379
380        registerContentObservers();
381
382        lockAllApps();
383
384        mSavedState = savedInstanceState;
385        restoreState(mSavedState);
386
387        // Update customization drawer _after_ restoring the states
388        if (mCustomizePagedView != null) {
389            mCustomizePagedView.update();
390        }
391
392        if (PROFILE_STARTUP) {
393            android.os.Debug.stopMethodTracing();
394        }
395
396        if (!mRestoring) {
397            mModel.startLoader(this, true);
398        }
399
400        // For handling default keys
401        mDefaultKeySsb = new SpannableStringBuilder();
402        Selection.setSelection(mDefaultKeySsb, 0);
403
404        IntentFilter filter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
405        registerReceiver(mCloseSystemDialogsReceiver, filter);
406
407        // If we have a saved version of these external icons, we load them up immediately
408        if (LauncherApplication.isScreenXLarge()) {
409            if (sGlobalSearchIcon != null) {
410                updateGlobalSearchIcon(sGlobalSearchIcon);
411            }
412            if (sVoiceSearchIcon != null) {
413                updateVoiceSearchIcon(sVoiceSearchIcon);
414            }
415            if (sAppMarketIcon != null) {
416                updateAppMarketIcon(sAppMarketIcon);
417            }
418        }
419    }
420
421    @Override
422    public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
423        super.dispatchPopulateAccessibilityEvent(event);
424
425        // we want to take over text population so it is context dependent
426        event.getText().clear();
427        if (mState == State.ALL_APPS) {
428            event.getText().add(getString(R.string.all_apps_button_label));
429        } else if (mState == State.WORKSPACE) {
430            event.getText().add(getString(R.string.all_apps_home_button_label));
431        }
432
433        return true;
434    }
435
436    private void checkForLocaleChange() {
437        if (sLocaleConfiguration == null) {
438            new AsyncTask<Void, Void, LocaleConfiguration>() {
439                @Override
440                protected LocaleConfiguration doInBackground(Void... unused) {
441                    LocaleConfiguration localeConfiguration = new LocaleConfiguration();
442                    readConfiguration(Launcher.this, localeConfiguration);
443                    return localeConfiguration;
444                }
445
446                @Override
447                protected void onPostExecute(LocaleConfiguration result) {
448                    sLocaleConfiguration = result;
449                    checkForLocaleChange();  // recursive, but now with a locale configuration
450                }
451            }.execute();
452            return;
453        }
454
455        final Configuration configuration = getResources().getConfiguration();
456
457        final String previousLocale = sLocaleConfiguration.locale;
458        final String locale = configuration.locale.toString();
459
460        final int previousMcc = sLocaleConfiguration.mcc;
461        final int mcc = configuration.mcc;
462
463        final int previousMnc = sLocaleConfiguration.mnc;
464        final int mnc = configuration.mnc;
465
466        boolean localeChanged = !locale.equals(previousLocale) || mcc != previousMcc || mnc != previousMnc;
467
468        if (localeChanged) {
469            sLocaleConfiguration.locale = locale;
470            sLocaleConfiguration.mcc = mcc;
471            sLocaleConfiguration.mnc = mnc;
472
473            mIconCache.flush();
474            loadHotseats();
475
476            final LocaleConfiguration localeConfiguration = sLocaleConfiguration;
477            new Thread("WriteLocaleConfiguration") {
478                @Override
479                public void run() {
480                    writeConfiguration(Launcher.this, localeConfiguration);
481                }
482            }.start();
483        }
484    }
485
486    private static class LocaleConfiguration {
487        public String locale;
488        public int mcc = -1;
489        public int mnc = -1;
490    }
491
492    private static void readConfiguration(Context context, LocaleConfiguration configuration) {
493        DataInputStream in = null;
494        try {
495            in = new DataInputStream(context.openFileInput(PREFERENCES));
496            configuration.locale = in.readUTF();
497            configuration.mcc = in.readInt();
498            configuration.mnc = in.readInt();
499        } catch (FileNotFoundException e) {
500            // Ignore
501        } catch (IOException e) {
502            // Ignore
503        } finally {
504            if (in != null) {
505                try {
506                    in.close();
507                } catch (IOException e) {
508                    // Ignore
509                }
510            }
511        }
512    }
513
514    private static void writeConfiguration(Context context, LocaleConfiguration configuration) {
515        DataOutputStream out = null;
516        try {
517            out = new DataOutputStream(context.openFileOutput(PREFERENCES, MODE_PRIVATE));
518            out.writeUTF(configuration.locale);
519            out.writeInt(configuration.mcc);
520            out.writeInt(configuration.mnc);
521            out.flush();
522        } catch (FileNotFoundException e) {
523            // Ignore
524        } catch (IOException e) {
525            //noinspection ResultOfMethodCallIgnored
526            context.getFileStreamPath(PREFERENCES).delete();
527        } finally {
528            if (out != null) {
529                try {
530                    out.close();
531                } catch (IOException e) {
532                    // Ignore
533                }
534            }
535        }
536    }
537
538    static int getScreen() {
539        synchronized (sLock) {
540            return sScreen;
541        }
542    }
543
544    static void setScreen(int screen) {
545        synchronized (sLock) {
546            sScreen = screen;
547        }
548    }
549
550    private void setWallpaperDimension() {
551        WallpaperManager wpm = (WallpaperManager)getSystemService(WALLPAPER_SERVICE);
552
553        Display display = getWindowManager().getDefaultDisplay();
554        boolean isPortrait = display.getWidth() < display.getHeight();
555        // find width and height when in portrait mode
556        final int width = isPortrait ? display.getWidth() : display.getHeight();
557        final int height = isPortrait ? display.getHeight() : display.getWidth();
558        wpm.suggestDesiredDimensions((int) (Math.max(width, height) * 1.5f),
559                Math.max(width, height));
560    }
561
562    // Note: This doesn't do all the client-id magic that BrowserProvider does
563    // in Browser. (http://b/2425179)
564    private Uri getDefaultBrowserUri() {
565        String url = getString(R.string.default_browser_url);
566        if (url.indexOf("{CID}") != -1) {
567            url = url.replace("{CID}", "android-google");
568        }
569        return Uri.parse(url);
570    }
571
572    // Load the Intent templates from arrays.xml to populate the hotseats. For
573    // each Intent, if it resolves to a single app, use that as the launch
574    // intent & use that app's label as the contentDescription. Otherwise,
575    // retain the ResolveActivity so the user can pick an app.
576    private void loadHotseats() {
577        if (mHotseatConfig == null) {
578            mHotseatConfig = getResources().getStringArray(R.array.hotseats);
579            if (mHotseatConfig.length > 0) {
580                mHotseats = new Intent[mHotseatConfig.length];
581                mHotseatLabels = new CharSequence[mHotseatConfig.length];
582                mHotseatIcons = new Drawable[mHotseatConfig.length];
583            } else {
584                mHotseats = null;
585                mHotseatIcons = null;
586                mHotseatLabels = null;
587            }
588
589            TypedArray hotseatIconDrawables = getResources().obtainTypedArray(R.array.hotseat_icons);
590            for (int i=0; i<mHotseatConfig.length; i++) {
591                // load icon for this slot; currently unrelated to the actual activity
592                try {
593                    mHotseatIcons[i] = hotseatIconDrawables.getDrawable(i);
594                } catch (ArrayIndexOutOfBoundsException ex) {
595                    Log.w(TAG, "Missing hotseat_icons array item #" + i);
596                    mHotseatIcons[i] = null;
597                }
598            }
599            hotseatIconDrawables.recycle();
600        }
601
602        PackageManager pm = getPackageManager();
603        for (int i=0; i<mHotseatConfig.length; i++) {
604            Intent intent = null;
605            if (mHotseatConfig[i].equals("*BROWSER*")) {
606                // magic value meaning "launch user's default web browser"
607                // replace it with a generic web request so we can see if there is indeed a default
608                String defaultUri = getString(R.string.default_browser_url);
609                intent = new Intent(
610                        Intent.ACTION_VIEW,
611                        ((defaultUri != null)
612                            ? Uri.parse(defaultUri)
613                            : getDefaultBrowserUri())
614                    ).addCategory(Intent.CATEGORY_BROWSABLE);
615                // note: if the user launches this without a default set, she
616                // will always be taken to the default URL above; this is
617                // unavoidable as we must specify a valid URL in order for the
618                // chooser to appear, and once the user selects something, that
619                // URL is unavoidably sent to the chosen app.
620            } else {
621                try {
622                    intent = Intent.parseUri(mHotseatConfig[i], 0);
623                } catch (java.net.URISyntaxException ex) {
624                    Log.w(TAG, "Invalid hotseat intent: " + mHotseatConfig[i]);
625                    // bogus; leave intent=null
626                }
627            }
628
629            if (intent == null) {
630                mHotseats[i] = null;
631                mHotseatLabels[i] = getText(R.string.activity_not_found);
632                continue;
633            }
634
635            if (LOGD) {
636                Log.d(TAG, "loadHotseats: hotseat " + i
637                    + " initial intent=["
638                    + intent.toUri(Intent.URI_INTENT_SCHEME)
639                    + "]");
640            }
641
642            ResolveInfo bestMatch = pm.resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);
643            List<ResolveInfo> allMatches = pm.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
644            if (LOGD) {
645                Log.d(TAG, "Best match for intent: " + bestMatch);
646                Log.d(TAG, "All matches: ");
647                for (ResolveInfo ri : allMatches) {
648                    Log.d(TAG, "  --> " + ri);
649                }
650            }
651            // did this resolve to a single app, or the resolver?
652            if (allMatches.size() == 0 || bestMatch == null) {
653                // can't find any activity to handle this. let's leave the
654                // intent as-is and let Launcher show a toast when it fails
655                // to launch.
656                mHotseats[i] = intent;
657
658                // set accessibility text to "Not installed"
659                mHotseatLabels[i] = getText(R.string.activity_not_found);
660            } else {
661                boolean found = false;
662                for (ResolveInfo ri : allMatches) {
663                    if (bestMatch.activityInfo.name.equals(ri.activityInfo.name)
664                        && bestMatch.activityInfo.applicationInfo.packageName
665                            .equals(ri.activityInfo.applicationInfo.packageName)) {
666                        found = true;
667                        break;
668                    }
669                }
670
671                if (!found) {
672                    if (LOGD) Log.d(TAG, "Multiple options, no default yet");
673                    // the bestMatch is probably the ResolveActivity, meaning the
674                    // user has not yet selected a default
675                    // so: we'll keep the original intent for now
676                    mHotseats[i] = intent;
677
678                    // set the accessibility text to "Select shortcut"
679                    mHotseatLabels[i] = getText(R.string.title_select_shortcut);
680                } else {
681                    // we have an app!
682                    // now reconstruct the intent to launch it through the front
683                    // door
684                    ComponentName com = new ComponentName(
685                        bestMatch.activityInfo.applicationInfo.packageName,
686                        bestMatch.activityInfo.name);
687                    mHotseats[i] = new Intent(Intent.ACTION_MAIN).setComponent(com);
688
689                    // load the app label for accessibility
690                    mHotseatLabels[i] = bestMatch.activityInfo.loadLabel(pm);
691                }
692            }
693
694            if (LOGD) {
695                Log.d(TAG, "loadHotseats: hotseat " + i
696                    + " final intent=["
697                    + ((mHotseats[i] == null)
698                        ? "null"
699                        : mHotseats[i].toUri(Intent.URI_INTENT_SCHEME))
700                    + "] label=[" + mHotseatLabels[i]
701                    + "]"
702                    );
703            }
704        }
705    }
706
707    @Override
708    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
709        mWaitingForResult = false;
710
711        // The pattern used here is that a user PICKs a specific application,
712        // which, depending on the target, might need to CREATE the actual target.
713
714        // For example, the user would PICK_SHORTCUT for "Music playlist", and we
715        // launch over to the Music app to actually CREATE_SHORTCUT.
716
717        if (resultCode == RESULT_OK && mAddScreen != -1) {
718            switch (requestCode) {
719                case REQUEST_PICK_APPLICATION:
720                    completeAddApplication(
721                            this, data, mAddScreen, mAddIntersectCellX, mAddIntersectCellY);
722                    break;
723                case REQUEST_PICK_SHORTCUT:
724                    processShortcut(data);
725                    break;
726                case REQUEST_CREATE_SHORTCUT:
727                    completeAddShortcut(data, mAddScreen, mAddIntersectCellX, mAddIntersectCellY);
728                    break;
729                case REQUEST_PICK_LIVE_FOLDER:
730                    addLiveFolder(data);
731                    break;
732                case REQUEST_CREATE_LIVE_FOLDER:
733                    completeAddLiveFolder(data, mAddScreen, mAddIntersectCellX, mAddIntersectCellY);
734                    break;
735                case REQUEST_PICK_APPWIDGET:
736                    addAppWidgetFromPick(data);
737                    break;
738                case REQUEST_CREATE_APPWIDGET:
739                    int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
740                    completeAddAppWidget(appWidgetId, mAddScreen);
741                    break;
742                case REQUEST_PICK_WALLPAPER:
743                    // We just wanted the activity result here so we can clear mWaitingForResult
744                    break;
745            }
746        } else if ((requestCode == REQUEST_PICK_APPWIDGET ||
747                requestCode == REQUEST_CREATE_APPWIDGET) && resultCode == RESULT_CANCELED &&
748                data != null) {
749            // Clean up the appWidgetId if we canceled
750            int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
751            if (appWidgetId != -1) {
752                mAppWidgetHost.deleteAppWidgetId(appWidgetId);
753            }
754        }
755    }
756
757    @Override
758    protected void onResume() {
759        super.onResume();
760        mPaused = false;
761        if (mRestoring || mOnResumeNeedsLoad) {
762            mWorkspaceLoading = true;
763            mModel.startLoader(this, true);
764            mRestoring = false;
765            mOnResumeNeedsLoad = false;
766        }
767        // When we resume Launcher, a different Activity might be responsible for the app
768        // market intent, so refresh the icon
769        updateAppMarketIcon();
770    }
771
772    @Override
773    protected void onPause() {
774        super.onPause();
775        // Some launcher layouts don't have a previous and next view
776        if (mPreviousView != null) {
777            dismissPreview(mPreviousView);
778        }
779        if (mNextView != null) {
780            dismissPreview(mNextView);
781        }
782        mPaused = true;
783        mDragController.cancelDrag();
784    }
785
786    @Override
787    public Object onRetainNonConfigurationInstance() {
788        // Flag the loader to stop early before switching
789        mModel.stopLoader();
790        mAllAppsGrid.surrender();
791        return Boolean.TRUE;
792    }
793
794    // We can't hide the IME if it was forced open.  So don't bother
795    /*
796    @Override
797    public void onWindowFocusChanged(boolean hasFocus) {
798        super.onWindowFocusChanged(hasFocus);
799
800        if (hasFocus) {
801            final InputMethodManager inputManager = (InputMethodManager)
802                    getSystemService(Context.INPUT_METHOD_SERVICE);
803            WindowManager.LayoutParams lp = getWindow().getAttributes();
804            inputManager.hideSoftInputFromWindow(lp.token, 0, new android.os.ResultReceiver(new
805                        android.os.Handler()) {
806                        protected void onReceiveResult(int resultCode, Bundle resultData) {
807                            Log.d(TAG, "ResultReceiver got resultCode=" + resultCode);
808                        }
809                    });
810            Log.d(TAG, "called hideSoftInputFromWindow from onWindowFocusChanged");
811        }
812    }
813    */
814
815    private boolean acceptFilter() {
816        final InputMethodManager inputManager = (InputMethodManager)
817                getSystemService(Context.INPUT_METHOD_SERVICE);
818        return !inputManager.isFullscreenMode();
819    }
820
821    @Override
822    public boolean onKeyDown(int keyCode, KeyEvent event) {
823        boolean handled = super.onKeyDown(keyCode, event);
824        if (!handled && acceptFilter() && keyCode != KeyEvent.KEYCODE_ENTER) {
825            boolean gotKey = TextKeyListener.getInstance().onKeyDown(mWorkspace, mDefaultKeySsb,
826                    keyCode, event);
827            if (gotKey && mDefaultKeySsb != null && mDefaultKeySsb.length() > 0) {
828                // something usable has been typed - start a search
829                // the typed text will be retrieved and cleared by
830                // showSearchDialog()
831                // If there are multiple keystrokes before the search dialog takes focus,
832                // onSearchRequested() will be called for every keystroke,
833                // but it is idempotent, so it's fine.
834                return onSearchRequested();
835            }
836        }
837
838        // Eat the long press event so the keyboard doesn't come up.
839        if (keyCode == KeyEvent.KEYCODE_MENU && event.isLongPress()) {
840            return true;
841        }
842
843        return handled;
844    }
845
846    private String getTypedText() {
847        return mDefaultKeySsb.toString();
848    }
849
850    private void clearTypedText() {
851        mDefaultKeySsb.clear();
852        mDefaultKeySsb.clearSpans();
853        Selection.setSelection(mDefaultKeySsb, 0);
854    }
855
856    /**
857     * Given the integer (ordinal) value of a State enum instance, convert it to a variable of type
858     * State
859     */
860    private static State intToState(int stateOrdinal) {
861        State state = State.WORKSPACE;
862        final State[] stateValues = State.values();
863        for (int i = 0; i < stateValues.length; i++) {
864            if (stateValues[i].ordinal() == stateOrdinal) {
865                state = stateValues[i];
866                break;
867            }
868        }
869        return state;
870    }
871
872    /**
873     * Restores the previous state, if it exists.
874     *
875     * @param savedState The previous state.
876     */
877    private void restoreState(Bundle savedState) {
878        if (savedState == null) {
879            return;
880        }
881
882        State state = intToState(savedState.getInt(RUNTIME_STATE, State.WORKSPACE.ordinal()));
883
884        if (state == State.ALL_APPS) {
885            showAllApps(false);
886        } else if (state == State.CUSTOMIZE) {
887            showCustomizationDrawer(false);
888        }
889
890        final int currentScreen = savedState.getInt(RUNTIME_STATE_CURRENT_SCREEN, -1);
891        if (currentScreen > -1) {
892            mWorkspace.setCurrentPage(currentScreen);
893        }
894
895        final int addScreen = savedState.getInt(RUNTIME_STATE_PENDING_ADD_SCREEN, -1);
896
897        if (addScreen > -1) {
898            mAddScreen = addScreen;
899            mAddIntersectCellX = savedState.getInt(RUNTIME_STATE_PENDING_ADD_CELL_X);
900            mAddIntersectCellY = savedState.getInt(RUNTIME_STATE_PENDING_ADD_CELL_Y);
901            mRestoring = true;
902        }
903
904        boolean renameFolder = savedState.getBoolean(RUNTIME_STATE_PENDING_FOLDER_RENAME, false);
905        if (renameFolder) {
906            long id = savedState.getLong(RUNTIME_STATE_PENDING_FOLDER_RENAME_ID);
907            mFolderInfo = mModel.getFolderById(this, sFolders, id);
908            mRestoring = true;
909        }
910
911        // Restore the current AllApps drawer tab
912        if (mAllAppsGrid != null && mAllAppsGrid instanceof AllAppsTabbed) {
913            String curTab = savedState.getString("allapps_currentTab");
914            if (curTab != null) {
915                AllAppsTabbed tabhost = (AllAppsTabbed) mAllAppsGrid;
916                tabhost.setCurrentTabByTag(curTab);
917            }
918            int curPage = savedState.getInt("allapps_currentPage", -1);
919            if (curPage > -1) {
920                mAllAppsPagedView.setRestorePage(curPage);
921            }
922        }
923
924        // Restore the current customization drawer tab
925        if (mHomeCustomizationDrawer != null) {
926            String curTab = savedState.getString("customize_currentTab");
927            if (curTab != null) {
928                // We set this directly so that there is no delay before the tab is set
929                mCustomizePagedView.setCustomizationFilter(getCustomizeFilterForTabTag(curTab));
930                mHomeCustomizationDrawer.setCurrentTabByTag(curTab);
931            }
932
933            // Note: currently we do not restore the page for the customization tray because unlike
934            // AllApps, the page content can change drastically
935        }
936    }
937
938    /**
939     * Finds all the views we need and configure them properly.
940     */
941    private void setupViews() {
942        final DragController dragController = mDragController;
943
944        DragLayer dragLayer = (DragLayer) findViewById(R.id.drag_layer);
945        dragLayer.setDragController(dragController);
946
947        mAllAppsGrid = (AllAppsView)dragLayer.findViewById(R.id.all_apps_view);
948        mAllAppsGrid.setLauncher(this);
949        mAllAppsGrid.setDragController(dragController);
950        ((View) mAllAppsGrid).setWillNotDraw(false); // We don't want a hole punched in our window.
951        // Manage focusability manually since this thing is always visible (in non-xlarge)
952        ((View) mAllAppsGrid).setFocusable(false);
953
954        if (LauncherApplication.isScreenXLarge()) {
955            // They need to be INVISIBLE initially so that they will be measured in the layout.
956            // Otherwise the animations are messed up when we show them for the first time.
957            ((View) mAllAppsGrid).setVisibility(View.INVISIBLE);
958            mHomeCustomizationDrawer.setVisibility(View.INVISIBLE);
959        }
960
961        mWorkspace = (Workspace) dragLayer.findViewById(R.id.workspace);
962
963        final Workspace workspace = mWorkspace;
964        workspace.setHapticFeedbackEnabled(false);
965
966        DeleteZone deleteZone = (DeleteZone) dragLayer.findViewById(R.id.delete_zone);
967        mDeleteZone = deleteZone;
968
969        View handleView = findViewById(R.id.all_apps_button);
970        if (handleView != null && handleView instanceof HandleView) {
971            // we don't use handle view in xlarge mode
972            mHandleView = (HandleView)handleView;
973            mHandleView.setLauncher(this);
974            mHandleView.setOnClickListener(this);
975            mHandleView.setOnLongClickListener(this);
976        }
977
978        if (mCustomizePagedView != null) {
979            mCustomizePagedView.setLauncher(this);
980            mCustomizePagedView.setDragController(dragController);
981        } else {
982             ImageView hotseatLeft = (ImageView) findViewById(R.id.hotseat_left);
983             hotseatLeft.setContentDescription(mHotseatLabels[0]);
984             hotseatLeft.setImageDrawable(mHotseatIcons[0]);
985             ImageView hotseatRight = (ImageView) findViewById(R.id.hotseat_right);
986             hotseatRight.setContentDescription(mHotseatLabels[1]);
987             hotseatRight.setImageDrawable(mHotseatIcons[1]);
988
989             mPreviousView = (ImageView) dragLayer.findViewById(R.id.previous_screen);
990             mNextView = (ImageView) dragLayer.findViewById(R.id.next_screen);
991
992             Drawable previous = mPreviousView.getDrawable();
993             Drawable next = mNextView.getDrawable();
994             mWorkspace.setIndicators(previous, next);
995
996             mPreviousView.setHapticFeedbackEnabled(false);
997             mPreviousView.setOnLongClickListener(this);
998             mNextView.setHapticFeedbackEnabled(false);
999             mNextView.setOnLongClickListener(this);
1000        }
1001
1002        workspace.setOnLongClickListener(this);
1003        workspace.setDragController(dragController);
1004        workspace.setLauncher(this);
1005
1006        deleteZone.setLauncher(this);
1007        deleteZone.setDragController(dragController);
1008        int deleteZoneHandleId;
1009
1010        final View allAppsButton = findViewById(R.id.all_apps_button);
1011        final View divider = findViewById(R.id.divider);
1012        final View configureButton = findViewById(R.id.configure_button);
1013
1014        if (LauncherApplication.isScreenXLarge()) {
1015            deleteZone.setOverlappingViews(new View[] { allAppsButton, divider, configureButton });
1016        } else {
1017            deleteZone.setOverlappingView(findViewById(R.id.all_apps_button_cluster));
1018        }
1019        dragController.addDragListener(deleteZone);
1020
1021        DeleteZone allAppsDeleteZone = (DeleteZone) findViewById(R.id.all_apps_delete_zone);
1022        if (allAppsDeleteZone != null) {
1023            allAppsDeleteZone.setLauncher(this);
1024            allAppsDeleteZone.setDragController(dragController);
1025            allAppsDeleteZone.setDragAndDropEnabled(false);
1026            dragController.addDragListener(allAppsDeleteZone);
1027            dragController.addDropTarget(allAppsDeleteZone);
1028        }
1029
1030        ApplicationInfoDropTarget allAppsInfoTarget = (ApplicationInfoDropTarget)
1031                findViewById(R.id.all_apps_info_target);
1032        if (allAppsInfoTarget != null) {
1033            allAppsInfoTarget.setLauncher(this);
1034            dragController.addDragListener(allAppsInfoTarget);
1035            allAppsInfoTarget.setDragAndDropEnabled(false);
1036            View marketButton = findViewById(R.id.market_button);
1037            if (marketButton != null) {
1038                allAppsInfoTarget.setOverlappingView(marketButton);
1039            }
1040        }
1041
1042        dragController.setDragScoller(workspace);
1043        dragController.setScrollView(dragLayer);
1044        dragController.setMoveTarget(workspace);
1045
1046        // The order here is bottom to top.
1047        dragController.addDropTarget(workspace);
1048        dragController.addDropTarget(deleteZone);
1049        if (allAppsInfoTarget != null) {
1050            dragController.addDropTarget(allAppsInfoTarget);
1051        }
1052        if (allAppsDeleteZone != null) {
1053            dragController.addDropTarget(allAppsDeleteZone);
1054        }
1055    }
1056
1057    @SuppressWarnings({"UnusedDeclaration"})
1058    public void previousScreen(View v) {
1059        if (mState != State.ALL_APPS) {
1060            mWorkspace.scrollLeft();
1061        }
1062    }
1063
1064    @SuppressWarnings({"UnusedDeclaration"})
1065    public void nextScreen(View v) {
1066        if (mState != State.ALL_APPS) {
1067            mWorkspace.scrollRight();
1068        }
1069    }
1070
1071    @SuppressWarnings({"UnusedDeclaration"})
1072    public void launchHotSeat(View v) {
1073        if (mState == State.ALL_APPS) return;
1074
1075        int index = -1;
1076        if (v.getId() == R.id.hotseat_left) {
1077            index = 0;
1078        } else if (v.getId() == R.id.hotseat_right) {
1079            index = 1;
1080        }
1081
1082        // reload these every tap; you never know when they might change
1083        loadHotseats();
1084        if (index >= 0 && index < mHotseats.length && mHotseats[index] != null) {
1085            Intent intent = mHotseats[index];
1086            startActivitySafely(
1087                mHotseats[index],
1088                "hotseat"
1089            );
1090        }
1091    }
1092
1093    /**
1094     * Creates a view representing a shortcut.
1095     *
1096     * @param info The data structure describing the shortcut.
1097     *
1098     * @return A View inflated from R.layout.application.
1099     */
1100    View createShortcut(ShortcutInfo info) {
1101        return createShortcut(R.layout.application,
1102                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentPage()), info);
1103    }
1104
1105    /**
1106     * Creates a view representing a shortcut inflated from the specified resource.
1107     *
1108     * @param layoutResId The id of the XML layout used to create the shortcut.
1109     * @param parent The group the shortcut belongs to.
1110     * @param info The data structure describing the shortcut.
1111     *
1112     * @return A View inflated from layoutResId.
1113     */
1114    View createShortcut(int layoutResId, ViewGroup parent, ShortcutInfo info) {
1115        BubbleTextView favorite = (BubbleTextView) mInflater.inflate(layoutResId, parent, false);
1116        favorite.applyFromShortcutInfo(info, mIconCache);
1117        favorite.setOnClickListener(this);
1118        return favorite;
1119    }
1120
1121    /**
1122     * Add an application shortcut to the workspace.
1123     *
1124     * @param data The intent describing the application.
1125     * @param cellInfo The position on screen where to create the shortcut.
1126     */
1127    void completeAddApplication(Context context, Intent data, int screen,
1128            int intersectCellX, int intersectCellY) {
1129        final int[] cellXY = mTmpAddItemCellCoordinates;
1130        final CellLayout layout = (CellLayout) mWorkspace.getChildAt(screen);
1131
1132        if (!layout.findCellForSpanThatIntersects(cellXY, 1, 1, intersectCellX, intersectCellY)) {
1133            showOutOfSpaceMessage();
1134            return;
1135        }
1136
1137        final ShortcutInfo info = mModel.getShortcutInfo(context.getPackageManager(),
1138                data, context);
1139
1140        if (info != null) {
1141            info.setActivity(data.getComponent(), Intent.FLAG_ACTIVITY_NEW_TASK |
1142                    Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
1143            info.container = ItemInfo.NO_ID;
1144            mWorkspace.addApplicationShortcut(info, screen, cellXY[0], cellXY[1],
1145                    isWorkspaceLocked(), mAddIntersectCellX, mAddIntersectCellY);
1146        } else {
1147            Log.e(TAG, "Couldn't find ActivityInfo for selected application: " + data);
1148        }
1149    }
1150
1151    /**
1152     * Add a shortcut to the workspace.
1153     *
1154     * @param data The intent describing the shortcut.
1155     * @param cellInfo The position on screen where to create the shortcut.
1156     */
1157    private void completeAddShortcut(Intent data, int screen,
1158            int intersectCellX, int intersectCellY) {
1159        final int[] cellXY = mTmpAddItemCellCoordinates;
1160        final CellLayout layout = (CellLayout) mWorkspace.getChildAt(screen);
1161
1162        int[] touchXY = null;
1163        if (mAddDropPosition != null && mAddDropPosition[0] > -1 && mAddDropPosition[1] > -1) {
1164            touchXY = mAddDropPosition;
1165        }
1166        boolean foundCellSpan = false;
1167        if (touchXY != null) {
1168            // when dragging and dropping, just find the closest free spot
1169            CellLayout screenLayout = (CellLayout) mWorkspace.getChildAt(screen);
1170            int[] result = screenLayout.findNearestVacantArea(
1171                    touchXY[0], touchXY[1], 1, 1, cellXY);
1172            foundCellSpan = (result != null);
1173        } else {
1174            foundCellSpan = layout.findCellForSpanThatIntersects(
1175                    cellXY, 1, 1, intersectCellX, intersectCellY);
1176        }
1177
1178        if (!foundCellSpan) {
1179            showOutOfSpaceMessage();
1180            return;
1181        }
1182
1183        final ShortcutInfo info = mModel.addShortcut(
1184                this, data, screen, cellXY[0], cellXY[1], false);
1185
1186        if (!mRestoring) {
1187            final View view = createShortcut(info);
1188            mWorkspace.addInScreen(view, screen, cellXY[0], cellXY[1], 1, 1, isWorkspaceLocked());
1189        }
1190    }
1191
1192    /**
1193     * Add a widget to the workspace.
1194     *
1195     * @param appWidgetId The app widget id
1196     * @param cellInfo The position on screen where to create the widget.
1197     */
1198    private void completeAddAppWidget(int appWidgetId, int screen) {
1199        AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
1200
1201        // Calculate the grid spans needed to fit this widget
1202        CellLayout layout = (CellLayout) mWorkspace.getChildAt(screen);
1203        int[] spanXY = layout.rectToCell(appWidgetInfo.minWidth, appWidgetInfo.minHeight, null);
1204
1205        // Try finding open space on Launcher screen
1206        // We have saved the position to which the widget was dragged-- this really only matters
1207        // if we are placing widgets on a "spring-loaded" screen
1208        final int[] cellXY = mTmpAddItemCellCoordinates;
1209
1210        // For now, we don't save the coordinate where we dropped the icon because we're not
1211        // supporting spring-loaded mini-screens; however, leaving the ability to directly place
1212        // a widget on the home screen in case we want to add it in the future
1213        int[] touchXY = null;
1214        if (mAddDropPosition != null && mAddDropPosition[0] > -1 && mAddDropPosition[1] > -1) {
1215            touchXY = mAddDropPosition;
1216        }
1217        boolean foundCellSpan = false;
1218        if (touchXY != null) {
1219            // when dragging and dropping, just find the closest free spot
1220            CellLayout screenLayout = (CellLayout) mWorkspace.getChildAt(screen);
1221            int[] result = screenLayout.findNearestVacantArea(
1222                    touchXY[0], touchXY[1], spanXY[0], spanXY[1], cellXY);
1223            foundCellSpan = (result != null);
1224        } else {
1225            // if we long pressed on an empty cell to bring up a menu,
1226            // make sure we intersect the empty cell
1227            // if mAddIntersectCellX/Y are -1 (e.g. we used menu -> add) then
1228            // findCellForSpanThatIntersects will just ignore them
1229            foundCellSpan = layout.findCellForSpanThatIntersects(cellXY, spanXY[0], spanXY[1],
1230                    mAddIntersectCellX, mAddIntersectCellY);
1231        }
1232
1233        if (!foundCellSpan) {
1234            if (appWidgetId != -1) mAppWidgetHost.deleteAppWidgetId(appWidgetId);
1235            showOutOfSpaceMessage();
1236            return;
1237        }
1238
1239        // Build Launcher-specific widget info and save to database
1240        LauncherAppWidgetInfo launcherInfo = new LauncherAppWidgetInfo(appWidgetId);
1241        launcherInfo.spanX = spanXY[0];
1242        launcherInfo.spanY = spanXY[1];
1243
1244        LauncherModel.addItemToDatabase(this, launcherInfo,
1245                LauncherSettings.Favorites.CONTAINER_DESKTOP,
1246                screen, cellXY[0], cellXY[1], false);
1247
1248        if (!mRestoring) {
1249            mDesktopItems.add(launcherInfo);
1250
1251            // Perform actual inflation because we're live
1252            launcherInfo.hostView = mAppWidgetHost.createView(this, appWidgetId, appWidgetInfo);
1253
1254            launcherInfo.hostView.setAppWidget(appWidgetId, appWidgetInfo);
1255            launcherInfo.hostView.setTag(launcherInfo);
1256
1257            mWorkspace.addInScreen(launcherInfo.hostView, screen, cellXY[0], cellXY[1],
1258                    launcherInfo.spanX, launcherInfo.spanY, isWorkspaceLocked());
1259
1260            addWidgetToAutoAdvanceIfNeeded(launcherInfo.hostView, appWidgetInfo);
1261        }
1262    }
1263
1264    private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
1265        @Override
1266        public void onReceive(Context context, Intent intent) {
1267            final String action = intent.getAction();
1268            if (Intent.ACTION_SCREEN_OFF.equals(action)) {
1269                mUserPresent = false;
1270                updateRunning();
1271            } else if (Intent.ACTION_USER_PRESENT.equals(action)) {
1272                mUserPresent = true;
1273                updateRunning();
1274            }
1275        }
1276    };
1277
1278    @Override
1279    public void onAttachedToWindow() {
1280        super.onAttachedToWindow();
1281
1282        // Listen for broadcasts related to user-presence
1283        final IntentFilter filter = new IntentFilter();
1284        filter.addAction(Intent.ACTION_SCREEN_OFF);
1285        filter.addAction(Intent.ACTION_USER_PRESENT);
1286        registerReceiver(mReceiver, filter);
1287
1288        mAttached = true;
1289        mVisible = true;
1290    }
1291
1292    @Override
1293    public void onDetachedFromWindow() {
1294        super.onDetachedFromWindow();
1295        mVisible = false;
1296
1297        if (mAttached) {
1298            unregisterReceiver(mReceiver);
1299            mAttached = false;
1300        }
1301        updateRunning();
1302    }
1303
1304    public void onWindowVisibilityChanged(int visibility) {
1305        mVisible = visibility == View.VISIBLE;
1306        updateRunning();
1307    }
1308
1309    private void sendAdvanceMessage(long delay) {
1310        mHandler.removeMessages(ADVANCE_MSG);
1311        Message msg = mHandler.obtainMessage(ADVANCE_MSG);
1312        mHandler.sendMessageDelayed(msg, delay);
1313        mAutoAdvanceSentTime = System.currentTimeMillis();
1314    }
1315
1316    private void updateRunning() {
1317        boolean autoAdvanceRunning = mVisible && mUserPresent && !mWidgetsToAdvance.isEmpty();
1318        if (autoAdvanceRunning != mAutoAdvanceRunning) {
1319            mAutoAdvanceRunning = autoAdvanceRunning;
1320            if (autoAdvanceRunning) {
1321                long delay = mAutoAdvanceTimeLeft == -1 ? mAdvanceInterval : mAutoAdvanceTimeLeft;
1322                sendAdvanceMessage(delay);
1323            } else {
1324                if (!mWidgetsToAdvance.isEmpty()) {
1325                    mAutoAdvanceTimeLeft = Math.max(0, mAdvanceInterval -
1326                            (System.currentTimeMillis() - mAutoAdvanceSentTime));
1327                }
1328                mHandler.removeMessages(ADVANCE_MSG);
1329            }
1330        }
1331    }
1332
1333    private final Handler mHandler = new Handler() {
1334        @Override
1335        public void handleMessage(Message msg) {
1336            if (msg.what == ADVANCE_MSG) {
1337                int i = 0;
1338                for (View key: mWidgetsToAdvance.keySet()) {
1339                    final View v = key.findViewById(mWidgetsToAdvance.get(key).autoAdvanceViewId);
1340                    final int delay = mAdvanceStagger * i;
1341                    if (v instanceof Advanceable) {
1342                       postDelayed(new Runnable() {
1343                           public void run() {
1344                               ((Advanceable) v).advance();
1345                           }
1346                       }, delay);
1347                    }
1348                    i++;
1349                }
1350                sendAdvanceMessage(mAdvanceInterval);
1351            }
1352        }
1353    };
1354
1355    void addWidgetToAutoAdvanceIfNeeded(View hostView, AppWidgetProviderInfo appWidgetInfo) {
1356        if (appWidgetInfo.autoAdvanceViewId == -1) return;
1357        View v = hostView.findViewById(appWidgetInfo.autoAdvanceViewId);
1358        if (v instanceof Advanceable) {
1359            mWidgetsToAdvance.put(hostView, appWidgetInfo);
1360            ((Advanceable) v).willBeAdvancedByHost();
1361            updateRunning();
1362        }
1363    }
1364
1365    void removeWidgetToAutoAdvance(View hostView) {
1366        if (mWidgetsToAdvance.containsKey(hostView)) {
1367            mWidgetsToAdvance.remove(hostView);
1368            updateRunning();
1369        }
1370    }
1371
1372    public void removeAppWidget(LauncherAppWidgetInfo launcherInfo) {
1373        mDesktopItems.remove(launcherInfo);
1374        removeWidgetToAutoAdvance(launcherInfo.hostView);
1375        launcherInfo.hostView = null;
1376    }
1377
1378    void showOutOfSpaceMessage() {
1379        Toast.makeText(this, getString(R.string.out_of_space), Toast.LENGTH_SHORT).show();
1380    }
1381
1382    public LauncherAppWidgetHost getAppWidgetHost() {
1383        return mAppWidgetHost;
1384    }
1385
1386    public LauncherModel getModel() {
1387        return mModel;
1388    }
1389
1390    void closeSystemDialogs() {
1391        getWindow().closeAllPanels();
1392
1393        try {
1394            dismissDialog(DIALOG_CREATE_SHORTCUT);
1395            // Unlock the workspace if the dialog was showing
1396        } catch (Exception e) {
1397            // An exception is thrown if the dialog is not visible, which is fine
1398        }
1399
1400        try {
1401            dismissDialog(DIALOG_RENAME_FOLDER);
1402            // Unlock the workspace if the dialog was showing
1403        } catch (Exception e) {
1404            // An exception is thrown if the dialog is not visible, which is fine
1405        }
1406
1407        // Whatever we were doing is hereby canceled.
1408        mWaitingForResult = false;
1409    }
1410
1411    @Override
1412    protected void onNewIntent(Intent intent) {
1413        super.onNewIntent(intent);
1414
1415        // Close the menu
1416        if (Intent.ACTION_MAIN.equals(intent.getAction())) {
1417            // also will cancel mWaitingForResult.
1418            closeSystemDialogs();
1419
1420            boolean alreadyOnHome = ((intent.getFlags() & Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT)
1421                        != Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT);
1422
1423            // in all these cases, only animate if we're already on home
1424            if (LauncherApplication.isScreenXLarge()) {
1425                mWorkspace.unshrink(alreadyOnHome);
1426            }
1427            if (!mWorkspace.isDefaultPageShowing()) {
1428                // on the phone, we don't animate the change to the workspace if all apps is visible
1429                mWorkspace.moveToDefaultScreen(alreadyOnHome &&
1430                        (LauncherApplication.isScreenXLarge() || mState != State.ALL_APPS));
1431            }
1432            showWorkspace(alreadyOnHome);
1433
1434            final View v = getWindow().peekDecorView();
1435            if (v != null && v.getWindowToken() != null) {
1436                InputMethodManager imm = (InputMethodManager)getSystemService(
1437                        INPUT_METHOD_SERVICE);
1438                imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
1439            }
1440        }
1441    }
1442
1443    @Override
1444    protected void onRestoreInstanceState(Bundle savedInstanceState) {
1445        // Do not call super here
1446        mSavedInstanceState = savedInstanceState;
1447    }
1448
1449    @Override
1450    protected void onSaveInstanceState(Bundle outState) {
1451        outState.putInt(RUNTIME_STATE_CURRENT_SCREEN, mWorkspace.getCurrentPage());
1452
1453        final ArrayList<Folder> folders = mWorkspace.getOpenFolders();
1454        if (folders.size() > 0) {
1455            final int count = folders.size();
1456            long[] ids = new long[count];
1457            for (int i = 0; i < count; i++) {
1458                final FolderInfo info = folders.get(i).getInfo();
1459                ids[i] = info.id;
1460            }
1461            outState.putLongArray(RUNTIME_STATE_USER_FOLDERS, ids);
1462        } else {
1463            super.onSaveInstanceState(outState);
1464        }
1465
1466        outState.putInt(RUNTIME_STATE, mState.ordinal());
1467
1468        if (mAddScreen > -1 && mWaitingForResult) {
1469            outState.putInt(RUNTIME_STATE_PENDING_ADD_SCREEN, mAddScreen);
1470            outState.putInt(RUNTIME_STATE_PENDING_ADD_CELL_X, mAddIntersectCellX);
1471            outState.putInt(RUNTIME_STATE_PENDING_ADD_CELL_Y, mAddIntersectCellY);
1472        }
1473
1474        if (mFolderInfo != null && mWaitingForResult) {
1475            outState.putBoolean(RUNTIME_STATE_PENDING_FOLDER_RENAME, true);
1476            outState.putLong(RUNTIME_STATE_PENDING_FOLDER_RENAME_ID, mFolderInfo.id);
1477        }
1478
1479        // Save the current AllApps drawer tab
1480        if (mAllAppsGrid != null && mAllAppsGrid instanceof AllAppsTabbed) {
1481            AllAppsTabbed tabhost = (AllAppsTabbed) mAllAppsGrid;
1482            String currentTabTag = tabhost.getCurrentTabTag();
1483            if (currentTabTag != null) {
1484                outState.putString("allapps_currentTab", currentTabTag);
1485                outState.putInt("allapps_currentPage", mAllAppsPagedView.getCurrentPage());
1486            }
1487        }
1488
1489        // Save the current customization drawer tab
1490        if (mHomeCustomizationDrawer != null) {
1491            String currentTabTag = mHomeCustomizationDrawer.getCurrentTabTag();
1492            if (currentTabTag != null) {
1493                outState.putString("customize_currentTab", currentTabTag);
1494            }
1495        }
1496    }
1497
1498    @Override
1499    public void onDestroy() {
1500        super.onDestroy();
1501
1502        try {
1503            mAppWidgetHost.stopListening();
1504        } catch (NullPointerException ex) {
1505            Log.w(TAG, "problem while stopping AppWidgetHost during Launcher destruction", ex);
1506        }
1507
1508        TextKeyListener.getInstance().release();
1509
1510        mModel.stopLoader();
1511
1512        unbindDesktopItems();
1513
1514        getContentResolver().unregisterContentObserver(mWidgetObserver);
1515
1516        // Some launcher layouts don't have a previous and next view
1517        if (mPreviousView != null) {
1518            dismissPreview(mPreviousView);
1519        }
1520        if (mNextView != null) {
1521            dismissPreview(mNextView);
1522        }
1523
1524        unregisterReceiver(mCloseSystemDialogsReceiver);
1525    }
1526
1527    @Override
1528    public void startActivityForResult(Intent intent, int requestCode) {
1529        if (requestCode >= 0) mWaitingForResult = true;
1530        super.startActivityForResult(intent, requestCode);
1531    }
1532
1533    @Override
1534    public void startSearch(String initialQuery, boolean selectInitialQuery,
1535            Bundle appSearchData, boolean globalSearch) {
1536
1537        showWorkspace(true);
1538
1539        if (initialQuery == null) {
1540            // Use any text typed in the launcher as the initial query
1541            initialQuery = getTypedText();
1542            clearTypedText();
1543        }
1544        if (appSearchData == null) {
1545            appSearchData = new Bundle();
1546            appSearchData.putString(Search.SOURCE, "launcher-search");
1547        }
1548
1549        final SearchManager searchManager =
1550                (SearchManager) getSystemService(Context.SEARCH_SERVICE);
1551        searchManager.startSearch(initialQuery, selectInitialQuery, getComponentName(),
1552            appSearchData, globalSearch);
1553    }
1554
1555    @Override
1556    public boolean onCreateOptionsMenu(Menu menu) {
1557        if (isWorkspaceLocked()) {
1558            return false;
1559        }
1560
1561        super.onCreateOptionsMenu(menu);
1562
1563        menu.add(MENU_GROUP_ADD, MENU_ADD, 0, R.string.menu_add)
1564                .setIcon(android.R.drawable.ic_menu_add)
1565                .setAlphabeticShortcut('A');
1566        menu.add(0, MENU_MANAGE_APPS, 0, R.string.menu_manage_apps)
1567                .setIcon(android.R.drawable.ic_menu_manage)
1568                .setAlphabeticShortcut('M');
1569        menu.add(MENU_GROUP_WALLPAPER, MENU_WALLPAPER_SETTINGS, 0, R.string.menu_wallpaper)
1570                 .setIcon(android.R.drawable.ic_menu_gallery)
1571                 .setAlphabeticShortcut('W');
1572        menu.add(0, MENU_SEARCH, 0, R.string.menu_search)
1573                .setIcon(android.R.drawable.ic_search_category_default)
1574                .setAlphabeticShortcut(SearchManager.MENU_KEY);
1575        menu.add(0, MENU_NOTIFICATIONS, 0, R.string.menu_notifications)
1576                .setIcon(com.android.internal.R.drawable.ic_menu_notifications)
1577                .setAlphabeticShortcut('N');
1578
1579        final Intent settings = new Intent(android.provider.Settings.ACTION_SETTINGS);
1580        settings.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
1581                Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
1582
1583        menu.add(0, MENU_SETTINGS, 0, R.string.menu_settings)
1584                .setIcon(android.R.drawable.ic_menu_preferences).setAlphabeticShortcut('P')
1585                .setIntent(settings);
1586
1587        return true;
1588    }
1589
1590    @Override
1591    public boolean onPrepareOptionsMenu(Menu menu) {
1592        super.onPrepareOptionsMenu(menu);
1593
1594        // If all apps is animating, don't show the menu, because we don't know
1595        // which one to show.
1596        if (mAllAppsGrid.isAnimating()) {
1597            return false;
1598        }
1599
1600        // Only show the add and wallpaper options when we're not in all apps.
1601        boolean visible = !mAllAppsGrid.isVisible();
1602        menu.setGroupVisible(MENU_GROUP_ADD, visible);
1603        menu.setGroupVisible(MENU_GROUP_WALLPAPER, visible);
1604
1605        // Disable add if the workspace is full.
1606        if (visible) {
1607            CellLayout layout = (CellLayout) mWorkspace.getChildAt(mWorkspace.getCurrentPage());
1608            menu.setGroupEnabled(MENU_GROUP_ADD, layout.existsEmptyCell());
1609        }
1610
1611        return true;
1612    }
1613
1614    @Override
1615    public boolean onOptionsItemSelected(MenuItem item) {
1616        switch (item.getItemId()) {
1617            case MENU_ADD:
1618                addItems();
1619                return true;
1620            case MENU_MANAGE_APPS:
1621                manageApps();
1622                return true;
1623            case MENU_WALLPAPER_SETTINGS:
1624                startWallpaper();
1625                return true;
1626            case MENU_SEARCH:
1627                onSearchRequested();
1628                return true;
1629            case MENU_NOTIFICATIONS:
1630                showNotifications();
1631                return true;
1632        }
1633
1634        return super.onOptionsItemSelected(item);
1635    }
1636
1637    /**
1638     * Indicates that we want global search for this activity by setting the globalSearch
1639     * argument for {@link #startSearch} to true.
1640     */
1641
1642    @Override
1643    public boolean onSearchRequested() {
1644        startSearch(null, false, null, true);
1645        return true;
1646    }
1647
1648    public boolean isWorkspaceLocked() {
1649        return mWorkspaceLoading || mWaitingForResult;
1650    }
1651
1652    private void addItems() {
1653        if (LauncherApplication.isScreenXLarge()) {
1654            // Animate the widget chooser up from the bottom of the screen
1655            if (mState != State.CUSTOMIZE) {
1656                showCustomizationDrawer(true);
1657            }
1658        } else {
1659            showWorkspace(true);
1660            showAddDialog(-1, -1);
1661        }
1662    }
1663
1664    private void resetAddInfo() {
1665        mAddScreen = -1;
1666        mAddIntersectCellX = -1;
1667        mAddIntersectCellY = -1;
1668        mAddDropPosition = null;
1669    }
1670
1671    void addAppWidgetFromDrop(PendingAddWidgetInfo info, int screen, int[] position) {
1672        resetAddInfo();
1673        mAddScreen = screen;
1674        mAddDropPosition = position;
1675
1676        int appWidgetId = getAppWidgetHost().allocateAppWidgetId();
1677        AppWidgetManager.getInstance(this).bindAppWidgetId(appWidgetId, info.componentName);
1678        addAppWidgetImpl(appWidgetId, info);
1679    }
1680
1681    private void manageApps() {
1682        startActivity(new Intent(android.provider.Settings.ACTION_MANAGE_ALL_APPLICATIONS_SETTINGS));
1683    }
1684
1685    void addAppWidgetFromPick(Intent data) {
1686        // TODO: catch bad widget exception when sent
1687        int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
1688        // TODO: Is this log message meaningful?
1689        if (LOGD) Log.d(TAG, "dumping extras content=" + data.getExtras());
1690        addAppWidgetImpl(appWidgetId, null);
1691    }
1692
1693    void addAppWidgetImpl(int appWidgetId, PendingAddWidgetInfo info) {
1694        AppWidgetProviderInfo appWidget = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
1695
1696        if (appWidget.configure != null) {
1697            // Launch over to configure widget, if needed
1698            Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_CONFIGURE);
1699            intent.setComponent(appWidget.configure);
1700            intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
1701            if (info != null) {
1702                if (info.mimeType != null && !info.mimeType.isEmpty()) {
1703                    intent.putExtra(
1704                            InstallWidgetReceiver.EXTRA_APPWIDGET_CONFIGURATION_DATA_MIME_TYPE,
1705                            info.mimeType);
1706
1707                    final String mimeType = info.mimeType;
1708                    final ClipData clipData = (ClipData) info.configurationData;
1709                    final ClipDescription clipDesc = clipData.getDescription();
1710                    for (int i = 0; i < clipDesc.getMimeTypeCount(); ++i) {
1711                        if (clipDesc.getMimeType(i).equals(mimeType)) {
1712                            final ClipData.Item item = clipData.getItem(i);
1713                            final CharSequence stringData = item.getText();
1714                            final Uri uriData = item.getUri();
1715                            final Intent intentData = item.getIntent();
1716                            final String key =
1717                                InstallWidgetReceiver.EXTRA_APPWIDGET_CONFIGURATION_DATA;
1718                            if (uriData != null) {
1719                                intent.putExtra(key, uriData);
1720                            } else if (intentData != null) {
1721                                intent.putExtra(key, intentData);
1722                            } else if (stringData != null) {
1723                                intent.putExtra(key, stringData);
1724                            }
1725                            break;
1726                        }
1727                    }
1728                }
1729            }
1730
1731            startActivityForResultSafely(intent, REQUEST_CREATE_APPWIDGET);
1732        } else {
1733            // Otherwise just add it
1734            completeAddAppWidget(appWidgetId, mAddScreen);
1735        }
1736    }
1737
1738    void processShortcutFromDrop(ComponentName componentName, int screen, int[] position) {
1739        resetAddInfo();
1740        mAddScreen = screen;
1741        mAddDropPosition = position;
1742
1743        Intent createShortcutIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT);
1744        createShortcutIntent.setComponent(componentName);
1745        processShortcut(createShortcutIntent);
1746    }
1747
1748    void processShortcut(Intent intent) {
1749        // Handle case where user selected "Applications"
1750        String applicationName = getResources().getString(R.string.group_applications);
1751        String shortcutName = intent.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
1752
1753        if (applicationName != null && applicationName.equals(shortcutName)) {
1754            Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
1755            mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
1756
1757            Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
1758            pickIntent.putExtra(Intent.EXTRA_INTENT, mainIntent);
1759            pickIntent.putExtra(Intent.EXTRA_TITLE, getText(R.string.title_select_application));
1760            startActivityForResultSafely(pickIntent, REQUEST_PICK_APPLICATION);
1761        } else {
1762            startActivityForResultSafely(intent, REQUEST_CREATE_SHORTCUT);
1763        }
1764    }
1765
1766    void processWallpaper(Intent intent) {
1767        startActivityForResult(intent, REQUEST_PICK_WALLPAPER);
1768    }
1769
1770    void addLiveFolderFromDrop(ComponentName componentName, int screen, int[] position) {
1771        resetAddInfo();
1772        mAddScreen = screen;
1773        mAddDropPosition = position;
1774
1775        Intent createFolderIntent = new Intent(LiveFolders.ACTION_CREATE_LIVE_FOLDER);
1776        createFolderIntent.setComponent(componentName);
1777
1778        addLiveFolder(createFolderIntent);
1779    }
1780
1781    void addLiveFolder(Intent intent) { // YYY add screen intersect etc. parameters here
1782        // Handle case where user selected "Folder"
1783        String folderName = getResources().getString(R.string.group_folder);
1784        String shortcutName = intent.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
1785
1786        if (folderName != null && folderName.equals(shortcutName)) {
1787            addFolder(mAddScreen, mAddIntersectCellX, mAddIntersectCellY);
1788        } else {
1789            startActivityForResultSafely(intent, REQUEST_CREATE_LIVE_FOLDER);
1790        }
1791    }
1792
1793    void addFolder(int screen, int intersectCellX, int intersectCellY) {
1794        UserFolderInfo folderInfo = new UserFolderInfo();
1795        folderInfo.title = getText(R.string.folder_name);
1796
1797        final CellLayout layout = (CellLayout) mWorkspace.getChildAt(screen);
1798        final int[] cellXY = mTmpAddItemCellCoordinates;
1799        if (!layout.findCellForSpanThatIntersects(cellXY, 1, 1, intersectCellX, intersectCellY)) {
1800            showOutOfSpaceMessage();
1801            return;
1802        }
1803
1804        // Update the model
1805        LauncherModel.addItemToDatabase(this, folderInfo,
1806                LauncherSettings.Favorites.CONTAINER_DESKTOP,
1807                screen, cellXY[0], cellXY[1], false);
1808        sFolders.put(folderInfo.id, folderInfo);
1809
1810        // Create the view
1811        FolderIcon newFolder = FolderIcon.fromXml(R.layout.folder_icon, this,
1812                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentPage()),
1813                folderInfo, mIconCache);
1814        mWorkspace.addInScreen(newFolder, screen, cellXY[0], cellXY[1], 1, 1, isWorkspaceLocked());
1815    }
1816
1817    void removeFolder(FolderInfo folder) {
1818        sFolders.remove(folder.id);
1819    }
1820
1821    private void completeAddLiveFolder(
1822            Intent data, int screen, int intersectCellX, int intersectCellY) {
1823        final CellLayout layout = (CellLayout) mWorkspace.getChildAt(screen);
1824        final int[] cellXY = mTmpAddItemCellCoordinates;
1825        if (!layout.findCellForSpanThatIntersects(cellXY, 1, 1, intersectCellX, intersectCellY)) {
1826            showOutOfSpaceMessage();
1827            return;
1828        }
1829
1830        final LiveFolderInfo info = addLiveFolder(this, data, screen, cellXY[0], cellXY[1], false);
1831
1832        if (!mRestoring) {
1833            final View view = LiveFolderIcon.fromXml(R.layout.live_folder_icon, this,
1834                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentPage()), info);
1835            mWorkspace.addInScreen(view, screen, cellXY[0], cellXY[1], 1, 1, isWorkspaceLocked());
1836        }
1837    }
1838
1839    static LiveFolderInfo addLiveFolder(Context context, Intent data,
1840            int screen, int cellX, int cellY, boolean notify) {
1841
1842        Intent baseIntent = data.getParcelableExtra(LiveFolders.EXTRA_LIVE_FOLDER_BASE_INTENT);
1843        String name = data.getStringExtra(LiveFolders.EXTRA_LIVE_FOLDER_NAME);
1844
1845        Drawable icon = null;
1846        Intent.ShortcutIconResource iconResource = null;
1847
1848        Parcelable extra = data.getParcelableExtra(LiveFolders.EXTRA_LIVE_FOLDER_ICON);
1849        if (extra != null && extra instanceof Intent.ShortcutIconResource) {
1850            try {
1851                iconResource = (Intent.ShortcutIconResource) extra;
1852                final PackageManager packageManager = context.getPackageManager();
1853                Resources resources = packageManager.getResourcesForApplication(
1854                        iconResource.packageName);
1855                final int id = resources.getIdentifier(iconResource.resourceName, null, null);
1856                icon = resources.getDrawable(id);
1857            } catch (Exception e) {
1858                Log.w(TAG, "Could not load live folder icon: " + extra);
1859            }
1860        }
1861
1862        if (icon == null) {
1863            icon = context.getResources().getDrawable(R.drawable.ic_launcher_folder);
1864        }
1865
1866        final LiveFolderInfo info = new LiveFolderInfo();
1867        info.icon = Utilities.createIconBitmap(icon, context);
1868        info.title = name;
1869        info.iconResource = iconResource;
1870        info.uri = data.getData();
1871        info.baseIntent = baseIntent;
1872        info.displayMode = data.getIntExtra(LiveFolders.EXTRA_LIVE_FOLDER_DISPLAY_MODE,
1873                LiveFolders.DISPLAY_MODE_GRID);
1874
1875        LauncherModel.addItemToDatabase(context, info, LauncherSettings.Favorites.CONTAINER_DESKTOP,
1876                screen, cellX, cellY, notify);
1877        sFolders.put(info.id, info);
1878
1879        return info;
1880    }
1881
1882    private void showNotifications() {
1883        final StatusBarManager statusBar = (StatusBarManager) getSystemService(STATUS_BAR_SERVICE);
1884        if (statusBar != null) {
1885            statusBar.expand();
1886        }
1887    }
1888
1889    private void startWallpaper() {
1890        showWorkspace(true);
1891        final Intent pickWallpaper = new Intent(Intent.ACTION_SET_WALLPAPER);
1892        Intent chooser = Intent.createChooser(pickWallpaper,
1893                getText(R.string.chooser_wallpaper));
1894        // NOTE: Adds a configure option to the chooser if the wallpaper supports it
1895        //       Removed in Eclair MR1
1896//        WallpaperManager wm = (WallpaperManager)
1897//                getSystemService(Context.WALLPAPER_SERVICE);
1898//        WallpaperInfo wi = wm.getWallpaperInfo();
1899//        if (wi != null && wi.getSettingsActivity() != null) {
1900//            LabeledIntent li = new LabeledIntent(getPackageName(),
1901//                    R.string.configure_wallpaper, 0);
1902//            li.setClassName(wi.getPackageName(), wi.getSettingsActivity());
1903//            chooser.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Intent[] { li });
1904//        }
1905        startActivityForResult(chooser, REQUEST_PICK_WALLPAPER);
1906    }
1907
1908    /**
1909     * Registers various content observers. The current implementation registers
1910     * only a favorites observer to keep track of the favorites applications.
1911     */
1912    private void registerContentObservers() {
1913        ContentResolver resolver = getContentResolver();
1914        resolver.registerContentObserver(LauncherProvider.CONTENT_APPWIDGET_RESET_URI,
1915                true, mWidgetObserver);
1916    }
1917
1918    @Override
1919    public boolean dispatchKeyEvent(KeyEvent event) {
1920        if (event.getAction() == KeyEvent.ACTION_DOWN) {
1921            switch (event.getKeyCode()) {
1922                case KeyEvent.KEYCODE_HOME:
1923                    return true;
1924                case KeyEvent.KEYCODE_VOLUME_DOWN:
1925                    if (SystemProperties.getInt("debug.launcher2.dumpstate", 0) != 0) {
1926                        dumpState();
1927                        return true;
1928                    }
1929                    break;
1930            }
1931        } else if (event.getAction() == KeyEvent.ACTION_UP) {
1932            switch (event.getKeyCode()) {
1933                case KeyEvent.KEYCODE_HOME:
1934                    return true;
1935            }
1936        }
1937
1938        return super.dispatchKeyEvent(event);
1939    }
1940
1941    @Override
1942    public void onBackPressed() {
1943        if (mState == State.ALL_APPS || mState == State.CUSTOMIZE) {
1944            showWorkspace(true);
1945        } else {
1946            closeFolder();
1947        }
1948        // Some launcher layouts don't have a previous and next view
1949        if (mPreviousView != null) {
1950            dismissPreview(mPreviousView);
1951            dismissPreview(mNextView);
1952        }
1953    }
1954
1955    private void closeFolder() {
1956        Folder folder = mWorkspace.getOpenFolder();
1957        if (folder != null) {
1958            closeFolder(folder);
1959        }
1960    }
1961
1962    void closeFolder(Folder folder) {
1963        folder.getInfo().opened = false;
1964        ViewGroup parent = (ViewGroup) folder.getParent();
1965        if (parent != null) {
1966            CellLayout cl = (CellLayout) parent;
1967            cl.removeViewWithoutMarkingCells(folder);
1968            if (folder instanceof DropTarget) {
1969                // Live folders aren't DropTargets.
1970                mDragController.removeDropTarget((DropTarget)folder);
1971            }
1972        }
1973        folder.onClose();
1974    }
1975
1976    /**
1977     * Re-listen when widgets are reset.
1978     */
1979    private void onAppWidgetReset() {
1980        mAppWidgetHost.startListening();
1981    }
1982
1983    /**
1984     * Go through the and disconnect any of the callbacks in the drawables and the views or we
1985     * leak the previous Home screen on orientation change.
1986     */
1987    private void unbindDesktopItems() {
1988        for (ItemInfo item: mDesktopItems) {
1989            item.unbind();
1990        }
1991    }
1992
1993    /**
1994     * Launches the intent referred by the clicked shortcut.
1995     *
1996     * @param v The view representing the clicked shortcut.
1997     */
1998    public void onClick(View v) {
1999        Object tag = v.getTag();
2000        if (tag instanceof ShortcutInfo) {
2001            // Open shortcut
2002            final Intent intent = ((ShortcutInfo) tag).intent;
2003            int[] pos = new int[2];
2004            v.getLocationOnScreen(pos);
2005            intent.setSourceBounds(new Rect(pos[0], pos[1],
2006                    pos[0] + v.getWidth(), pos[1] + v.getHeight()));
2007            startActivitySafely(intent, tag);
2008        } else if (tag instanceof FolderInfo) {
2009            handleFolderClick((FolderInfo) tag);
2010        } else if (v == mHandleView) {
2011            if (mState == State.ALL_APPS) {
2012                showWorkspace(true);
2013            } else {
2014                showAllApps(true);
2015            }
2016        }
2017    }
2018
2019    public boolean onTouch(View v, MotionEvent event) {
2020        // this is an intercepted event being forwarded from mWorkspace;
2021        // clicking anywhere on the workspace causes the customization drawer to slide down
2022        showWorkspace(true);
2023        return false;
2024    }
2025
2026    /**
2027     * Event handler for the search button
2028     *
2029     * @param v The view that was clicked.
2030     */
2031    public void onClickSearchButton(View v) {
2032        startSearch(null, false, null, true);
2033        // Use a custom animation for launching search
2034        overridePendingTransition(R.anim.fade_in_fast, R.anim.fade_out_fast);
2035    }
2036
2037    /**
2038     * Event handler for the voice button
2039     *
2040     * @param v The view that was clicked.
2041     */
2042    public void onClickVoiceButton(View v) {
2043        startVoiceSearch();
2044    }
2045
2046    private void startVoiceSearch() {
2047        Intent intent = new Intent(RecognizerIntent.ACTION_WEB_SEARCH);
2048        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
2049        startActivity(intent);
2050    }
2051
2052    /**
2053     * Event handler for the "gear" button that appears on the home screen, which
2054     * enters home screen customization mode.
2055     *
2056     * @param v The view that was clicked.
2057     */
2058    public void onClickConfigureButton(View v) {
2059        addItems();
2060    }
2061
2062    /**
2063     * Event handler for the "grid" button that appears on the home screen, which
2064     * enters all apps mode.
2065     *
2066     * @param v The view that was clicked.
2067     */
2068    public void onClickAllAppsButton(View v) {
2069        showAllApps(true);
2070    }
2071
2072    public void onClickAppMarketButton(View v) {
2073        if (mAppMarketIntent != null) {
2074            startActivitySafely(mAppMarketIntent, "app market");
2075        }
2076    }
2077
2078    void startApplicationDetailsActivity(ComponentName componentName) {
2079        String packageName = componentName.getPackageName();
2080        Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS,
2081                Uri.fromParts("package", packageName, null));
2082        startActivity(intent);
2083    }
2084
2085    void startApplicationUninstallActivity(ApplicationInfo appInfo) {
2086        if ((appInfo.flags & ApplicationInfo.DOWNLOADED_FLAG) == 0) {
2087            // System applications cannot be installed. For now, show a toast explaining that.
2088            // We may give them the option of disabling apps this way.
2089            int messageId = R.string.uninstall_system_app_text;
2090            Toast.makeText(this, messageId, Toast.LENGTH_SHORT).show();
2091        } else {
2092            String packageName = appInfo.componentName.getPackageName();
2093            String className = appInfo.componentName.getClassName();
2094            Intent intent = new Intent(
2095                    Intent.ACTION_DELETE, Uri.fromParts("package", packageName, className));
2096            startActivity(intent);
2097        }
2098    }
2099
2100    void startActivitySafely(Intent intent, Object tag) {
2101        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
2102        try {
2103            startActivity(intent);
2104        } catch (ActivityNotFoundException e) {
2105            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
2106            Log.e(TAG, "Unable to launch. tag=" + tag + " intent=" + intent, e);
2107        } catch (SecurityException e) {
2108            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
2109            Log.e(TAG, "Launcher does not have the permission to launch " + intent +
2110                    ". Make sure to create a MAIN intent-filter for the corresponding activity " +
2111                    "or use the exported attribute for this activity. "
2112                    + "tag="+ tag + " intent=" + intent, e);
2113        }
2114    }
2115
2116    void startActivityForResultSafely(Intent intent, int requestCode) {
2117        try {
2118            startActivityForResult(intent, requestCode);
2119        } catch (ActivityNotFoundException e) {
2120            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
2121        } catch (SecurityException e) {
2122            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
2123            Log.e(TAG, "Launcher does not have the permission to launch " + intent +
2124                    ". Make sure to create a MAIN intent-filter for the corresponding activity " +
2125                    "or use the exported attribute for this activity.", e);
2126        }
2127    }
2128
2129    private void handleFolderClick(FolderInfo folderInfo) {
2130        if (!folderInfo.opened) {
2131            // Close any open folder
2132            closeFolder();
2133            // Open the requested folder
2134            openFolder(folderInfo);
2135        } else {
2136            // Find the open folder...
2137            Folder openFolder = mWorkspace.getFolderForTag(folderInfo);
2138            int folderScreen;
2139            if (openFolder != null) {
2140                folderScreen = mWorkspace.getPageForView(openFolder);
2141                // .. and close it
2142                closeFolder(openFolder);
2143                if (folderScreen != mWorkspace.getCurrentPage()) {
2144                    // Close any folder open on the current screen
2145                    closeFolder();
2146                    // Pull the folder onto this screen
2147                    openFolder(folderInfo);
2148                }
2149            }
2150        }
2151    }
2152
2153    /**
2154     * Opens the user folder described by the specified tag. The opening of the folder
2155     * is animated relative to the specified View. If the View is null, no animation
2156     * is played.
2157     *
2158     * @param folderInfo The FolderInfo describing the folder to open.
2159     */
2160    public void openFolder(FolderInfo folderInfo) {
2161        Folder openFolder;
2162
2163        if (folderInfo instanceof UserFolderInfo) {
2164            openFolder = UserFolder.fromXml(this);
2165        } else if (folderInfo instanceof LiveFolderInfo) {
2166            openFolder = com.android.launcher2.LiveFolder.fromXml(this, folderInfo);
2167        } else {
2168            return;
2169        }
2170
2171        openFolder.setDragController(mDragController);
2172        openFolder.setLauncher(this);
2173
2174        openFolder.bind(folderInfo);
2175        folderInfo.opened = true;
2176
2177        mWorkspace.addInFullScreen(openFolder, folderInfo.screen);
2178
2179        openFolder.onOpen();
2180    }
2181
2182    public boolean onLongClick(View v) {
2183        switch (v.getId()) {
2184            case R.id.previous_screen:
2185                if (mState != State.ALL_APPS) {
2186                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
2187                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
2188                    showPreviews(v);
2189                }
2190                return true;
2191            case R.id.next_screen:
2192                if (mState != State.ALL_APPS) {
2193                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
2194                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
2195                    showPreviews(v);
2196                }
2197                return true;
2198            case R.id.all_apps_button:
2199                if (mState != State.ALL_APPS) {
2200                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
2201                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
2202                    showPreviews(v);
2203                }
2204                return true;
2205        }
2206
2207        if (isWorkspaceLocked()) {
2208            return false;
2209        }
2210
2211        if (!(v instanceof CellLayout)) {
2212            v = (View) v.getParent();
2213        }
2214
2215
2216        resetAddInfo();
2217        CellLayout.CellInfo longClickCellInfo = (CellLayout.CellInfo) v.getTag();
2218        // This happens when long clicking an item with the dpad/trackball
2219        if (longClickCellInfo == null || !longClickCellInfo.valid) {
2220            return true;
2221        }
2222
2223        final View itemUnderLongClick = longClickCellInfo.cell;
2224
2225        if (mWorkspace.allowLongPress() && !mDragController.isDragging()) {
2226            if (itemUnderLongClick == null) {
2227                // User long pressed on empty space
2228                mWorkspace.setAllowLongPress(false);
2229                mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
2230                        HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
2231                if (!LauncherApplication.isScreenXLarge()) {
2232                    showAddDialog(longClickCellInfo.cellX, longClickCellInfo.cellY);
2233                }
2234            } else {
2235                if (!(itemUnderLongClick instanceof Folder)) {
2236                    // User long pressed on an item
2237                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
2238                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
2239                    mAddIntersectCellX = longClickCellInfo.cellX;
2240                    mAddIntersectCellY = longClickCellInfo.cellY;
2241                    mWorkspace.startDrag(longClickCellInfo);
2242                }
2243            }
2244        }
2245        return true;
2246    }
2247
2248    @SuppressWarnings({"unchecked"})
2249    private void dismissPreview(final View v) {
2250        final PopupWindow window = (PopupWindow) v.getTag();
2251        if (window != null) {
2252            window.setOnDismissListener(new PopupWindow.OnDismissListener() {
2253                public void onDismiss() {
2254                    ViewGroup group = (ViewGroup) v.getTag(R.id.workspace);
2255                    int count = group.getChildCount();
2256                    for (int i = 0; i < count; i++) {
2257                        ((ImageView) group.getChildAt(i)).setImageDrawable(null);
2258                    }
2259                    ArrayList<Bitmap> bitmaps = (ArrayList<Bitmap>) v.getTag(R.id.icon);
2260                    for (Bitmap bitmap : bitmaps) bitmap.recycle();
2261
2262                    v.setTag(R.id.workspace, null);
2263                    v.setTag(R.id.icon, null);
2264                    window.setOnDismissListener(null);
2265                }
2266            });
2267            window.dismiss();
2268        }
2269        v.setTag(null);
2270    }
2271
2272    private void showPreviews(View anchor) {
2273        showPreviews(anchor, 0, mWorkspace.getChildCount());
2274    }
2275
2276    private void showPreviews(final View anchor, int start, int end) {
2277        final Resources resources = getResources();
2278        final Workspace workspace = mWorkspace;
2279
2280        CellLayout cell = ((CellLayout) workspace.getChildAt(start));
2281
2282        float max = workspace.getChildCount();
2283
2284        final Rect r = new Rect();
2285        resources.getDrawable(R.drawable.preview_background).getPadding(r);
2286        int extraW = (int) ((r.left + r.right) * max);
2287        int extraH = r.top + r.bottom;
2288
2289        int aW = cell.getWidth() - extraW;
2290        float w = aW / max;
2291
2292        int width = cell.getWidth();
2293        int height = cell.getHeight();
2294        int x = cell.getLeftPadding();
2295        int y = cell.getTopPadding();
2296        width -= (x + cell.getRightPadding());
2297        height -= (y + cell.getBottomPadding());
2298
2299        float scale = w / width;
2300
2301        int count = end - start;
2302
2303        final float sWidth = width * scale;
2304        float sHeight = height * scale;
2305
2306        LinearLayout preview = new LinearLayout(this);
2307
2308        PreviewTouchHandler handler = new PreviewTouchHandler(anchor);
2309        ArrayList<Bitmap> bitmaps = new ArrayList<Bitmap>(count);
2310
2311        for (int i = start; i < end; i++) {
2312            ImageView image = new ImageView(this);
2313            cell = (CellLayout) workspace.getChildAt(i);
2314
2315            final Bitmap bitmap = Bitmap.createBitmap((int) sWidth, (int) sHeight,
2316                    Bitmap.Config.ARGB_8888);
2317
2318            final Canvas c = new Canvas(bitmap);
2319            c.scale(scale, scale);
2320            c.translate(-cell.getLeftPadding(), -cell.getTopPadding());
2321            cell.drawChildren(c);
2322
2323            image.setBackgroundDrawable(resources.getDrawable(R.drawable.preview_background));
2324            image.setImageBitmap(bitmap);
2325            image.setTag(i);
2326            image.setOnClickListener(handler);
2327            image.setOnFocusChangeListener(handler);
2328            image.setFocusable(true);
2329            if (i == mWorkspace.getCurrentPage()) image.requestFocus();
2330
2331            preview.addView(image,
2332                    LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
2333
2334            bitmaps.add(bitmap);
2335        }
2336
2337        final PopupWindow p = new PopupWindow(this);
2338        p.setContentView(preview);
2339        p.setWidth((int) (sWidth * count + extraW));
2340        p.setHeight((int) (sHeight + extraH));
2341        p.setAnimationStyle(R.style.AnimationPreview);
2342        p.setOutsideTouchable(true);
2343        p.setFocusable(true);
2344        p.setBackgroundDrawable(new ColorDrawable(0));
2345        p.showAsDropDown(anchor, 0, 0);
2346
2347        p.setOnDismissListener(new PopupWindow.OnDismissListener() {
2348            public void onDismiss() {
2349                dismissPreview(anchor);
2350            }
2351        });
2352
2353        anchor.setTag(p);
2354        anchor.setTag(R.id.workspace, preview);
2355        anchor.setTag(R.id.icon, bitmaps);
2356    }
2357
2358    class PreviewTouchHandler implements View.OnClickListener, Runnable, View.OnFocusChangeListener {
2359        private final View mAnchor;
2360
2361        public PreviewTouchHandler(View anchor) {
2362            mAnchor = anchor;
2363        }
2364
2365        public void onClick(View v) {
2366            mWorkspace.snapToPage((Integer) v.getTag());
2367            v.post(this);
2368        }
2369
2370        public void run() {
2371            dismissPreview(mAnchor);
2372        }
2373
2374        public void onFocusChange(View v, boolean hasFocus) {
2375            if (hasFocus) {
2376                mWorkspace.snapToPage((Integer) v.getTag());
2377            }
2378        }
2379    }
2380
2381    Workspace getWorkspace() {
2382        return mWorkspace;
2383    }
2384
2385    @Override
2386    protected Dialog onCreateDialog(int id) {
2387        switch (id) {
2388            case DIALOG_CREATE_SHORTCUT:
2389                return new CreateShortcut().createDialog();
2390            case DIALOG_RENAME_FOLDER:
2391                return new RenameFolder().createDialog();
2392        }
2393
2394        return super.onCreateDialog(id);
2395    }
2396
2397    @Override
2398    protected void onPrepareDialog(int id, Dialog dialog) {
2399        switch (id) {
2400            case DIALOG_CREATE_SHORTCUT:
2401                break;
2402            case DIALOG_RENAME_FOLDER:
2403                if (mFolderInfo != null) {
2404                    EditText input = (EditText) dialog.findViewById(R.id.folder_name);
2405                    final CharSequence text = mFolderInfo.title;
2406                    input.setText(text);
2407                    input.setSelection(0, text.length());
2408                }
2409                break;
2410        }
2411    }
2412
2413    void showRenameDialog(FolderInfo info) {
2414        mFolderInfo = info;
2415        mWaitingForResult = true;
2416        showDialog(DIALOG_RENAME_FOLDER);
2417    }
2418
2419    private void showAddDialog(int intersectX, int intersectY) {
2420        resetAddInfo();
2421        mAddIntersectCellX = intersectX;
2422        mAddIntersectCellY = intersectY;
2423        mAddScreen = mWorkspace.getCurrentPage();
2424        mWaitingForResult = true;
2425        showDialog(DIALOG_CREATE_SHORTCUT);
2426    }
2427
2428    private void pickShortcut() {
2429        // Insert extra item to handle picking application
2430        Bundle bundle = new Bundle();
2431
2432        ArrayList<String> shortcutNames = new ArrayList<String>();
2433        shortcutNames.add(getString(R.string.group_applications));
2434        bundle.putStringArrayList(Intent.EXTRA_SHORTCUT_NAME, shortcutNames);
2435
2436        ArrayList<ShortcutIconResource> shortcutIcons = new ArrayList<ShortcutIconResource>();
2437        shortcutIcons.add(ShortcutIconResource.fromContext(Launcher.this,
2438                        R.drawable.ic_launcher_application));
2439        bundle.putParcelableArrayList(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, shortcutIcons);
2440
2441        Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
2442        pickIntent.putExtra(Intent.EXTRA_INTENT, new Intent(Intent.ACTION_CREATE_SHORTCUT));
2443        pickIntent.putExtra(Intent.EXTRA_TITLE, getText(R.string.title_select_shortcut));
2444        pickIntent.putExtras(bundle);
2445
2446        startActivityForResult(pickIntent, REQUEST_PICK_SHORTCUT);
2447    }
2448
2449    private class RenameFolder {
2450        private EditText mInput;
2451
2452        Dialog createDialog() {
2453            final View layout = View.inflate(Launcher.this, R.layout.rename_folder, null);
2454            mInput = (EditText) layout.findViewById(R.id.folder_name);
2455
2456            AlertDialog.Builder builder = new AlertDialog.Builder(Launcher.this);
2457            builder.setIcon(0);
2458            builder.setTitle(getString(R.string.rename_folder_title));
2459            builder.setCancelable(true);
2460            builder.setOnCancelListener(new Dialog.OnCancelListener() {
2461                public void onCancel(DialogInterface dialog) {
2462                    cleanup();
2463                }
2464            });
2465            builder.setNegativeButton(getString(R.string.cancel_action),
2466                new Dialog.OnClickListener() {
2467                    public void onClick(DialogInterface dialog, int which) {
2468                        cleanup();
2469                    }
2470                }
2471            );
2472            builder.setPositiveButton(getString(R.string.rename_action),
2473                new Dialog.OnClickListener() {
2474                    public void onClick(DialogInterface dialog, int which) {
2475                        changeFolderName();
2476                    }
2477                }
2478            );
2479            builder.setView(layout);
2480
2481            final AlertDialog dialog = builder.create();
2482            dialog.setOnShowListener(new DialogInterface.OnShowListener() {
2483                public void onShow(DialogInterface dialog) {
2484                    mWaitingForResult = true;
2485                    mInput.requestFocus();
2486                    InputMethodManager inputManager = (InputMethodManager)
2487                            getSystemService(Context.INPUT_METHOD_SERVICE);
2488                    inputManager.showSoftInput(mInput, 0);
2489                }
2490            });
2491
2492            return dialog;
2493        }
2494
2495        private void changeFolderName() {
2496            final String name = mInput.getText().toString();
2497            if (!TextUtils.isEmpty(name)) {
2498                // Make sure we have the right folder info
2499                mFolderInfo = sFolders.get(mFolderInfo.id);
2500                mFolderInfo.title = name;
2501                LauncherModel.updateItemInDatabase(Launcher.this, mFolderInfo);
2502
2503                if (mWorkspaceLoading) {
2504                    lockAllApps();
2505                    mModel.startLoader(Launcher.this, false);
2506                } else {
2507                    final FolderIcon folderIcon = (FolderIcon)
2508                            mWorkspace.getViewForTag(mFolderInfo);
2509                    if (folderIcon != null) {
2510                        folderIcon.setText(name);
2511                        getWorkspace().requestLayout();
2512                    } else {
2513                        lockAllApps();
2514                        mWorkspaceLoading = true;
2515                        mModel.startLoader(Launcher.this, false);
2516                    }
2517                }
2518            }
2519            cleanup();
2520        }
2521
2522        private void cleanup() {
2523            dismissDialog(DIALOG_RENAME_FOLDER);
2524            mWaitingForResult = false;
2525            mFolderInfo = null;
2526        }
2527    }
2528
2529    // Now a part of LauncherModel.Callbacks. Used to reorder loading steps.
2530    public boolean isAllAppsVisible() {
2531        return mState == State.ALL_APPS;
2532    }
2533
2534    // AllAppsView.Watcher
2535    public void zoomed(float zoom) {
2536        // In XLarge view, we zoom down the workspace below all apps so it's still visible
2537        if (zoom == 1.0f && !LauncherApplication.isScreenXLarge()) {
2538            mWorkspace.setVisibility(View.GONE);
2539        }
2540    }
2541
2542    private void showToolbarButton(View button) {
2543        button.setAlpha(1.0f);
2544        button.setVisibility(View.VISIBLE);
2545        button.setFocusable(true);
2546        button.setClickable(true);
2547    }
2548
2549    private void hideToolbarButton(View button) {
2550        button.setAlpha(0.0f);
2551        // We can't set it to GONE, otherwise the RelativeLayout gets screwed up
2552        button.setVisibility(View.INVISIBLE);
2553        button.setFocusable(false);
2554        button.setClickable(false);
2555    }
2556
2557    /**
2558     * Helper function for showing or hiding a toolbar button, possibly animated.
2559     *
2560     * @param show If true, create an animation to the show the item. Otherwise, hide it.
2561     * @param view The toolbar button to be animated
2562     * @param seq A AnimatorSet that will be used to animate the transition. If null, the
2563     * transition will not be animated.
2564     */
2565    private void hideOrShowToolbarButton(boolean show, final View view, AnimatorSet seq) {
2566        final boolean showing = show;
2567        final boolean hiding = !show;
2568
2569        final int duration = show ?
2570                getResources().getInteger(R.integer.config_toolbarButtonFadeInTime) :
2571                getResources().getInteger(R.integer.config_toolbarButtonFadeOutTime);
2572
2573        if (seq != null) {
2574            Animator anim = ObjectAnimator.ofFloat(view, "alpha", show ? 1.0f : 0.0f);
2575            anim.setDuration(duration);
2576            anim.addListener(new AnimatorListenerAdapter() {
2577                @Override
2578                public void onAnimationStart(Animator animation) {
2579                    if (showing) showToolbarButton(view);
2580                }
2581                @Override
2582                public void onAnimationEnd(Animator animation) {
2583                    if (hiding) hideToolbarButton(view);
2584                }
2585            });
2586            seq.play(anim);
2587        } else {
2588            if (showing) {
2589                showToolbarButton(view);
2590            } else {
2591                hideToolbarButton(view);
2592            }
2593        }
2594    }
2595
2596    /**
2597     * Show/hide the appropriate toolbar buttons for newState.
2598     * If showSeq or hideSeq is null, the transition will be done immediately (not animated).
2599     *
2600     * @param newState The state that is being switched to
2601     * @param showSeq AnimatorSet in which to put "show" animations, or null.
2602     * @param hideSeq AnimatorSet in which to put "hide" animations, or null.
2603     */
2604    private void hideAndShowToolbarButtons(State newState, AnimatorSet showSeq, AnimatorSet hideSeq) {
2605        final View searchButton = findViewById(R.id.search_button_cluster);
2606        final View allAppsButton = findViewById(R.id.all_apps_button);
2607        final View divider = findViewById(R.id.divider);
2608        final View configureButton = findViewById(R.id.configure_button);
2609
2610        switch (newState) {
2611        case WORKSPACE:
2612            hideOrShowToolbarButton(true, searchButton, showSeq);
2613            hideOrShowToolbarButton(true, allAppsButton, showSeq);
2614            hideOrShowToolbarButton(true, divider, showSeq);
2615            hideOrShowToolbarButton(true, configureButton, showSeq);
2616            mDeleteZone.setOverlappingViews(new View[] { allAppsButton, divider, configureButton });
2617            mDeleteZone.setDragAndDropEnabled(true);
2618            mDeleteZone.setText(getResources().getString(R.string.delete_zone_label_workspace));
2619            break;
2620        case ALL_APPS:
2621            hideOrShowToolbarButton(false, configureButton, hideSeq);
2622            hideOrShowToolbarButton(false, searchButton, hideSeq);
2623            hideOrShowToolbarButton(false, divider, hideSeq);
2624            hideOrShowToolbarButton(false, allAppsButton, hideSeq);
2625            mDeleteZone.setDragAndDropEnabled(false);
2626            mDeleteZone.setText(getResources().getString(R.string.delete_zone_label_all_apps));
2627            break;
2628        case CUSTOMIZE:
2629            hideOrShowToolbarButton(false, allAppsButton, hideSeq);
2630            hideOrShowToolbarButton(false, searchButton, hideSeq);
2631            hideOrShowToolbarButton(false, divider, hideSeq);
2632            hideOrShowToolbarButton(false, configureButton, hideSeq);
2633            mDeleteZone.setDragAndDropEnabled(false);
2634            break;
2635        }
2636    }
2637
2638    /**
2639     * Helper method for the cameraZoomIn/cameraZoomOut animations
2640     * @param view The view being animated
2641     * @param state The state that we are moving in or out of -- either ALL_APPS or CUSTOMIZE
2642     * @param scaleFactor The scale factor used for the zoom
2643     */
2644    private void setPivotsForZoom(View view, State state, float scaleFactor) {
2645        final int height = view.getHeight();
2646
2647        view.setPivotX(view.getWidth() / 2.0f);
2648        // Set pivotY so that at the starting zoom factor, the view is partially
2649        // visible. Modifying initialHeightFactor changes how much of the view is
2650        // initially showing, and hence the perceived angle from which the view enters.
2651        if (state == State.ALL_APPS) {
2652            final float initialHeightFactor = 0.165f;
2653            view.setPivotY((1 - initialHeightFactor) * height);
2654        } else {
2655            final float initialHeightFactor = 0.2f;
2656            view.setPivotY(-initialHeightFactor * height);
2657        }
2658    }
2659
2660    /**
2661     * Zoom the camera out from the workspace to reveal 'toView'.
2662     * Assumes that the view to show is anchored at either the very top or very bottom
2663     * of the screen.
2664     * @param toState The state to zoom out to. Must be ALL_APPS or CUSTOMIZE.
2665     */
2666    private void cameraZoomOut(State toState, boolean animated) {
2667        final Resources res = getResources();
2668        final boolean toAllApps = (toState == State.ALL_APPS);
2669
2670        final int duration = toAllApps ?
2671                res.getInteger(R.integer.config_allAppsZoomInTime) :
2672                res.getInteger(R.integer.config_customizeZoomInTime);
2673
2674        final float scale = toAllApps ?
2675                (float) res.getInteger(R.integer.config_allAppsZoomScaleFactor) :
2676                (float) res.getInteger(R.integer.config_customizeZoomScaleFactor);
2677
2678        final View toView = toAllApps ? (View) mAllAppsGrid : mHomeCustomizationDrawer;
2679
2680        setPivotsForZoom(toView, toState, scale);
2681
2682        if (toAllApps) {
2683            mWorkspace.shrink(ShrinkState.BOTTOM_HIDDEN, animated);
2684            toView.setAlpha(0f);
2685        } else {
2686            mWorkspace.shrink(ShrinkState.TOP, animated);
2687        }
2688
2689        if (animated) {
2690            ValueAnimator scaleAnim = ObjectAnimator.ofPropertyValuesHolder(toView,
2691                    PropertyValuesHolder.ofFloat("scaleX", scale, 1.0f),
2692                    PropertyValuesHolder.ofFloat("scaleY", scale, 1.0f));
2693
2694            scaleAnim.setDuration(duration);
2695
2696            if (toAllApps) {
2697                ObjectAnimator alphaAnim = ObjectAnimator.ofPropertyValuesHolder(toView,
2698                        PropertyValuesHolder.ofFloat("alpha", 1.0f));
2699                alphaAnim.setInterpolator(new DecelerateInterpolator(1.5f));
2700                alphaAnim.setDuration(duration);
2701                alphaAnim.start();
2702            }
2703
2704            scaleAnim.setInterpolator(new Workspace.ZoomOutInterpolator());
2705            scaleAnim.addListener(new AnimatorListenerAdapter() {
2706                @Override
2707                public void onAnimationStart(Animator animation) {
2708                    // Prepare the position
2709                    toView.setTranslationX(0.0f);
2710                    toView.setTranslationY(0.0f);
2711                    toView.setVisibility(View.VISIBLE);
2712                    if (!toAllApps) {
2713                        toView.setAlpha(1.0f);
2714                    }
2715                }
2716                @Override
2717                public void onAnimationEnd(Animator animation) {
2718                    // If we don't set the final scale values here, if this animation is cancelled
2719                    // it will have the wrong scale value and subsequent cameraPan animations will
2720                    // not fix that
2721                    toView.setScaleX(1.0f);
2722                    toView.setScaleY(1.0f);
2723                }
2724            });
2725
2726            AnimatorSet toolbarHideAnim = new AnimatorSet();
2727            AnimatorSet toolbarShowAnim = new AnimatorSet();
2728            hideAndShowToolbarButtons(toState, toolbarShowAnim, toolbarHideAnim);
2729
2730            // toView should appear right at the end of the workspace shrink animation
2731            final int startDelay = 0;
2732
2733            if (mStateAnimation != null) mStateAnimation.cancel();
2734            mStateAnimation = new AnimatorSet();
2735            mStateAnimation.playTogether(scaleAnim, toolbarHideAnim);
2736            mStateAnimation.play(scaleAnim).after(startDelay);
2737
2738            // Show the new toolbar buttons just as the main animation is ending
2739            final int fadeInTime = res.getInteger(R.integer.config_toolbarButtonFadeInTime);
2740            mStateAnimation.play(toolbarShowAnim).after(duration + startDelay - fadeInTime);
2741            mStateAnimation.start();
2742        } else {
2743            toView.setTranslationX(0.0f);
2744            toView.setTranslationY(0.0f);
2745            toView.setScaleX(1.0f);
2746            toView.setScaleY(1.0f);
2747            toView.setVisibility(View.VISIBLE);
2748            hideAndShowToolbarButtons(toState, null, null);
2749        }
2750    }
2751
2752    /**
2753     * Zoom the camera back into the workspace, hiding 'fromView'.
2754     * This is the opposite of cameraZoomOut.
2755     * @param fromState The current state (must be ALL_APPS or CUSTOMIZE).
2756     * @param animated If true, the transition will be animated.
2757     */
2758    private void cameraZoomIn(State fromState, boolean animated) {
2759        cameraZoomIn(fromState, animated, false);
2760    }
2761
2762    private void cameraZoomIn(State fromState, boolean animated, boolean springLoaded) {
2763        Resources res = getResources();
2764        final boolean fromAllApps = (fromState == State.ALL_APPS);
2765
2766        int duration = fromAllApps ?
2767            res.getInteger(R.integer.config_allAppsZoomOutTime) :
2768            res.getInteger(R.integer.config_customizeZoomOutTime);
2769
2770        float scaleFactor = fromAllApps ?
2771            (float) res.getInteger(R.integer.config_allAppsZoomScaleFactor) :
2772            (float) res.getInteger(R.integer.config_customizeZoomScaleFactor);
2773
2774        final View fromView = fromAllApps ? (View) mAllAppsGrid : mHomeCustomizationDrawer;
2775
2776        mCustomizePagedView.endChoiceMode();
2777        mAllAppsPagedView.endChoiceMode();
2778
2779        setPivotsForZoom(fromView, fromState, scaleFactor);
2780
2781        if (!springLoaded) {
2782            mWorkspace.unshrink(animated);
2783        }
2784
2785        if (animated) {
2786            if (mStateAnimation != null) mStateAnimation.cancel();
2787            mStateAnimation = new AnimatorSet();
2788            ValueAnimator scaleAnim = ObjectAnimator.ofPropertyValuesHolder(fromView,
2789                    PropertyValuesHolder.ofFloat("scaleX", scaleFactor),
2790                    PropertyValuesHolder.ofFloat("scaleY", scaleFactor));
2791            scaleAnim.setDuration(duration);
2792            scaleAnim.setInterpolator(new Workspace.ZoomInInterpolator());
2793
2794            ValueAnimator alphaAnim = ObjectAnimator.ofPropertyValuesHolder(fromView,
2795                    PropertyValuesHolder.ofFloat("alpha", 1.0f, 0.0f));
2796            alphaAnim.setDuration(res.getInteger(R.integer.config_allAppsFadeOutTime));
2797            alphaAnim.setInterpolator(new DecelerateInterpolator(1.5f));
2798            alphaAnim.addListener(new AnimatorListenerAdapter() {
2799                @Override
2800                public void onAnimationEnd(Animator animation) {
2801                    fromView.setVisibility(View.GONE);
2802                }
2803            });
2804
2805            AnimatorSet toolbarHideAnim = new AnimatorSet();
2806            AnimatorSet toolbarShowAnim = new AnimatorSet();
2807            if (!springLoaded) {
2808                hideAndShowToolbarButtons(State.WORKSPACE, toolbarShowAnim, toolbarHideAnim);
2809            }
2810
2811            mStateAnimation.playTogether(scaleAnim, toolbarHideAnim, alphaAnim);
2812
2813            // Show the new toolbar buttons at the very end of the whole animation
2814            final int fadeInTime = res.getInteger(R.integer.config_toolbarButtonFadeInTime);
2815            final int unshrinkTime = res.getInteger(R.integer.config_workspaceUnshrinkTime);
2816            mStateAnimation.play(toolbarShowAnim).after(unshrinkTime - fadeInTime);
2817            mStateAnimation.start();
2818        } else {
2819            fromView.setVisibility(View.GONE);
2820            if (!springLoaded) {
2821                hideAndShowToolbarButtons(State.WORKSPACE, null, null);
2822            }
2823        }
2824    }
2825
2826    /**
2827     * Pan the camera in the vertical plane between 'fromView' and 'toView'.
2828     * This is the transition used on xlarge screens to go between all apps and
2829     * the home customization drawer.
2830     * @param fromState The view to pan away from. Must be ALL_APPS or CUSTOMIZE.
2831     * @param toState The view to pan into the frame. Must be ALL_APPS or CUSTOMIZE.
2832     * @param animated If true, the transition will be animated.
2833     */
2834    private void cameraPan(State fromState, State toState, boolean animated) {
2835        final Resources res = getResources();
2836        final int duration = res.getInteger(R.integer.config_allAppsCameraPanTime);
2837        final int workspaceHeight = mWorkspace.getHeight();
2838
2839        final boolean fromAllApps = (fromState == State.ALL_APPS);
2840        final View fromView = fromAllApps ? (View) mAllAppsGrid : mHomeCustomizationDrawer;
2841        final View toView = fromAllApps ? mHomeCustomizationDrawer : (View) mAllAppsGrid;
2842
2843        final float fromViewStartY = fromAllApps ? 0.0f : fromView.getY();
2844        final float fromViewEndY = fromAllApps ? -fromView.getHeight() * 2 : workspaceHeight * 2;
2845        final float toViewStartY = fromAllApps ? workspaceHeight * 2 : -toView.getHeight() * 2;
2846        final float toViewEndY = fromAllApps ? workspaceHeight - toView.getHeight() : 0.0f;
2847
2848        mCustomizePagedView.endChoiceMode();
2849        mAllAppsPagedView.endChoiceMode();
2850
2851        if (toState == State.ALL_APPS) {
2852            mWorkspace.shrink(Workspace.ShrinkState.BOTTOM_HIDDEN, animated);
2853        } else {
2854            mWorkspace.shrink(Workspace.ShrinkState.TOP, animated);
2855        }
2856
2857        if (animated) {
2858            if (mStateAnimation != null) mStateAnimation.cancel();
2859            mStateAnimation = new AnimatorSet();
2860            mStateAnimation.addListener(new AnimatorListenerAdapter() {
2861                @Override
2862                public void onAnimationStart(Animator animation) {
2863                    toView.setVisibility(View.VISIBLE);
2864                    toView.setY(toViewStartY);
2865                    toView.setAlpha(1.0f);
2866                }
2867                @Override
2868                public void onAnimationEnd(Animator animation) {
2869                    fromView.setVisibility(View.GONE);
2870                }
2871            });
2872
2873            AnimatorSet toolbarHideAnim = new AnimatorSet();
2874            AnimatorSet toolbarShowAnim = new AnimatorSet();
2875            hideAndShowToolbarButtons(toState, toolbarShowAnim, toolbarHideAnim);
2876
2877            ObjectAnimator fromAnim = ObjectAnimator.ofFloat(fromView, "y",
2878                    fromViewStartY, fromViewEndY);
2879            fromAnim.setDuration(duration);
2880            ObjectAnimator toAnim = ObjectAnimator.ofPropertyValuesHolder(toView,
2881                    PropertyValuesHolder.ofFloat("y", toViewStartY, toViewEndY),
2882                    PropertyValuesHolder.ofFloat("scaleX", toView.getScaleX(), 1.0f),
2883                    PropertyValuesHolder.ofFloat("scaleY", toView.getScaleY(), 1.0f)
2884                    );
2885            fromAnim.setDuration(duration);
2886            mStateAnimation.playTogether(toolbarHideAnim, fromAnim, toAnim);
2887
2888            // Show the new toolbar buttons just as the main animation is ending
2889            final int fadeInTime = res.getInteger(R.integer.config_toolbarButtonFadeInTime);
2890            mStateAnimation.play(toolbarShowAnim).after(duration - fadeInTime);
2891            mStateAnimation.start();
2892        } else {
2893            fromView.setY(fromViewEndY);
2894            fromView.setVisibility(View.GONE);
2895            toView.setY(toViewEndY);
2896            toView.setScaleX(1.0f);
2897            toView.setScaleY(1.0f);
2898            toView.setVisibility(View.VISIBLE);
2899            hideAndShowToolbarButtons(toState, null, null);
2900        }
2901    }
2902
2903    void showAllApps(boolean animated) {
2904        if (mState == State.ALL_APPS) {
2905            return;
2906        }
2907
2908        if (LauncherApplication.isScreenXLarge()) {
2909            if (mState == State.CUSTOMIZE) {
2910                cameraPan(State.CUSTOMIZE, State.ALL_APPS, animated);
2911            } else {
2912                cameraZoomOut(State.ALL_APPS, animated);
2913            }
2914        } else {
2915            mAllAppsGrid.zoom(1.0f, animated);
2916        }
2917
2918        ((View) mAllAppsGrid).setFocusable(true);
2919        ((View) mAllAppsGrid).requestFocus();
2920
2921        // TODO: fade these two too
2922        mDeleteZone.setVisibility(View.GONE);
2923
2924        // Change the state *after* we've called all the transition code
2925        mState = State.ALL_APPS;
2926
2927        // send an accessibility event to announce the context change
2928        getWindow().getDecorView().sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_SELECTED);
2929    }
2930
2931    void showWorkspace(boolean animated) {
2932        showWorkspace(animated, null);
2933    }
2934
2935    void showWorkspace(boolean animated, CellLayout layout) {
2936        if (layout != null) {
2937            // always animated, but that's ok since we never specify a layout and
2938            // want no animation
2939            mWorkspace.unshrink(layout);
2940        } else {
2941            mWorkspace.unshrink(animated);
2942        }
2943        if (mState == State.ALL_APPS) {
2944            closeAllApps(animated);
2945        } else if (mState == State.CUSTOMIZE) {
2946            hideCustomizationDrawer(animated);
2947        }
2948
2949        // Change the state *after* we've called all the transition code
2950        mState = State.WORKSPACE;
2951
2952        // send an accessibility event to announce the context change
2953        getWindow().getDecorView().sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_SELECTED);
2954    }
2955
2956    void enterSpringLoadedDragMode(CellLayout layout) {
2957        mWorkspace.enterSpringLoadedDragMode(layout);
2958        if (mState == State.ALL_APPS) {
2959            cameraZoomIn(State.ALL_APPS, true, true);
2960            mState = State.ALL_APPS_SPRING_LOADED;
2961        } else if (mState == State.CUSTOMIZE) {
2962            cameraZoomIn(State.CUSTOMIZE, true, true);
2963            mState = State.CUSTOMIZE_SPRING_LOADED;
2964        }/* else {
2965            // we're already in spring loaded mode; don't do anything
2966        }*/
2967    }
2968
2969    void exitSpringLoadedDragMode() {
2970        if (mState == State.ALL_APPS_SPRING_LOADED) {
2971            mWorkspace.exitSpringLoadedDragMode(Workspace.ShrinkState.BOTTOM_VISIBLE);
2972            cameraZoomOut(State.ALL_APPS, true);
2973            mState = State.ALL_APPS;
2974        } else if (mState == State.CUSTOMIZE_SPRING_LOADED) {
2975            mWorkspace.exitSpringLoadedDragMode(Workspace.ShrinkState.TOP);
2976            cameraZoomOut(State.CUSTOMIZE, true);
2977            mState = State.CUSTOMIZE;
2978        }/* else {
2979            // we're not in spring loaded mode; don't do anything
2980        }*/
2981    }
2982
2983    /**
2984     * Things to test when changing this code.
2985     *   - Home from workspace
2986     *          - from center screen
2987     *          - from other screens
2988     *   - Home from all apps
2989     *          - from center screen
2990     *          - from other screens
2991     *   - Back from all apps
2992     *          - from center screen
2993     *          - from other screens
2994     *   - Launch app from workspace and quit
2995     *          - with back
2996     *          - with home
2997     *   - Launch app from all apps and quit
2998     *          - with back
2999     *          - with home
3000     *   - Go to a screen that's not the default, then all
3001     *     apps, and launch and app, and go back
3002     *          - with back
3003     *          -with home
3004     *   - On workspace, long press power and go back
3005     *          - with back
3006     *          - with home
3007     *   - On all apps, long press power and go back
3008     *          - with back
3009     *          - with home
3010     *   - On workspace, power off
3011     *   - On all apps, power off
3012     *   - Launch an app and turn off the screen while in that app
3013     *          - Go back with home key
3014     *          - Go back with back key  TODO: make this not go to workspace
3015     *          - From all apps
3016     *          - From workspace
3017     *   - Enter and exit car mode (becuase it causes an extra configuration changed)
3018     *          - From all apps
3019     *          - From the center workspace
3020     *          - From another workspace
3021     */
3022    void closeAllApps(boolean animated) {
3023        if (mState == State.ALL_APPS || mState == State.ALL_APPS_SPRING_LOADED) {
3024            mWorkspace.setVisibility(View.VISIBLE);
3025            if (LauncherApplication.isScreenXLarge()) {
3026                cameraZoomIn(State.ALL_APPS, animated);
3027            } else {
3028                mAllAppsGrid.zoom(0.0f, animated);
3029            }
3030            ((View)mAllAppsGrid).setFocusable(false);
3031            mWorkspace.getChildAt(mWorkspace.getCurrentPage()).requestFocus();
3032        }
3033    }
3034
3035    void lockAllApps() {
3036        // TODO
3037    }
3038
3039    void unlockAllApps() {
3040        // TODO
3041    }
3042
3043    // Show the customization drawer (only exists in x-large configuration)
3044    private void showCustomizationDrawer(boolean animated) {
3045        if (mState == State.ALL_APPS) {
3046            cameraPan(State.ALL_APPS, State.CUSTOMIZE, animated);
3047        } else {
3048            cameraZoomOut(State.CUSTOMIZE, animated);
3049        }
3050        // Change the state *after* we've called all the transition code
3051        mState = State.CUSTOMIZE;
3052    }
3053
3054    // Hide the customization drawer (only exists in x-large configuration)
3055    void hideCustomizationDrawer(boolean animated) {
3056        if (mState == State.CUSTOMIZE || mState == State.CUSTOMIZE_SPRING_LOADED) {
3057            cameraZoomIn(State.CUSTOMIZE, animated);
3058        }
3059    }
3060
3061    void addExternalItemToScreen(ItemInfo itemInfo, CellLayout layout) {
3062        if (!mWorkspace.addExternalItemToScreen(itemInfo, layout)) {
3063            showOutOfSpaceMessage();
3064        }
3065    }
3066
3067    void onWorkspaceClick(CellLayout layout) {
3068        showWorkspace(true, layout);
3069    }
3070
3071    // if successful in getting icon, return it; otherwise, set button to use default drawable
3072    private Drawable.ConstantState updateButtonWithIconFromExternalActivity(
3073            int buttonId, ComponentName activityName, int fallbackDrawableId) {
3074        ImageView button = (ImageView) findViewById(buttonId);
3075        Drawable toolbarIcon = null;
3076        try {
3077            PackageManager packageManager = getPackageManager();
3078            // Look for the toolbar icon specified in the activity meta-data
3079            Bundle metaData = packageManager.getActivityInfo(
3080                    activityName, PackageManager.GET_META_DATA).metaData;
3081            if (metaData != null) {
3082                int iconResId = metaData.getInt(TOOLBAR_ICON_METADATA_NAME);
3083                if (iconResId != 0) {
3084                    Resources res = packageManager.getResourcesForActivity(activityName);
3085                    toolbarIcon = res.getDrawable(iconResId);
3086                }
3087            }
3088        } catch (NameNotFoundException e) {
3089            // Do nothing
3090        }
3091        // If we were unable to find the icon via the meta-data, use a generic one
3092        if (toolbarIcon == null) {
3093            button.setImageResource(fallbackDrawableId);
3094            return null;
3095        } else {
3096            button.setImageDrawable(toolbarIcon);
3097            return toolbarIcon.getConstantState();
3098        }
3099    }
3100
3101    private void updateButtonWithDrawable(int buttonId, Drawable.ConstantState d) {
3102        ImageView button = (ImageView) findViewById(buttonId);
3103        button.setImageDrawable(d.newDrawable(getResources()));
3104    }
3105
3106    private void updateGlobalSearchIcon() {
3107        if (LauncherApplication.isScreenXLarge()) {
3108            final SearchManager searchManager =
3109                    (SearchManager) getSystemService(Context.SEARCH_SERVICE);
3110            ComponentName activityName = searchManager.getGlobalSearchActivity();
3111            if (activityName != null) {
3112                sGlobalSearchIcon = updateButtonWithIconFromExternalActivity(
3113                        R.id.search_button, activityName, R.drawable.search_button_generic);
3114            } else {
3115                findViewById(R.id.search_button).setVisibility(View.GONE);
3116            }
3117        }
3118    }
3119
3120    private void updateGlobalSearchIcon(Drawable.ConstantState d) {
3121        updateButtonWithDrawable(R.id.search_button, d);
3122    }
3123
3124    private void updateVoiceSearchIcon() {
3125        if (LauncherApplication.isScreenXLarge()) {
3126            Intent intent = new Intent(RecognizerIntent.ACTION_WEB_SEARCH);
3127            ComponentName activityName = intent.resolveActivity(getPackageManager());
3128            if (activityName != null) {
3129                sVoiceSearchIcon = updateButtonWithIconFromExternalActivity(
3130                        R.id.voice_button, activityName, R.drawable.ic_voice_search);
3131            } else {
3132                findViewById(R.id.voice_button).setVisibility(View.GONE);
3133            }
3134        }
3135    }
3136
3137    private void updateVoiceSearchIcon(Drawable.ConstantState d) {
3138        updateButtonWithDrawable(R.id.voice_button, d);
3139    }
3140
3141    /**
3142     * Sets the app market icon (shown when all apps is visible on x-large screens)
3143     */
3144    private void updateAppMarketIcon() {
3145        if (LauncherApplication.isScreenXLarge()) {
3146            Intent intent = new Intent(Intent.ACTION_MAIN).addCategory(Intent.CATEGORY_APP_MARKET);
3147            // Find the app market activity by resolving an intent.
3148            // (If multiple app markets are installed, it will return the ResolverActivity.)
3149            ComponentName activityName = intent.resolveActivity(getPackageManager());
3150            if (activityName != null) {
3151                mAppMarketIntent = intent;
3152                sAppMarketIcon = updateButtonWithIconFromExternalActivity(
3153                        R.id.market_button, activityName, R.drawable.app_market_generic);
3154            }
3155        }
3156    }
3157
3158    private void updateAppMarketIcon(Drawable.ConstantState d) {
3159        updateButtonWithDrawable(R.id.market_button, d);
3160    }
3161
3162    /**
3163     * Displays the shortcut creation dialog and launches, if necessary, the
3164     * appropriate activity.
3165     */
3166    private class CreateShortcut implements DialogInterface.OnClickListener,
3167            DialogInterface.OnCancelListener, DialogInterface.OnDismissListener,
3168            DialogInterface.OnShowListener {
3169
3170        private AddAdapter mAdapter;
3171
3172        Dialog createDialog() {
3173            mAdapter = new AddAdapter(Launcher.this);
3174
3175            final AlertDialog.Builder builder = new AlertDialog.Builder(Launcher.this);
3176            builder.setTitle(getString(R.string.menu_item_add_item));
3177            builder.setAdapter(mAdapter, this);
3178
3179            builder.setInverseBackgroundForced(true);
3180
3181            AlertDialog dialog = builder.create();
3182            dialog.setOnCancelListener(this);
3183            dialog.setOnDismissListener(this);
3184            dialog.setOnShowListener(this);
3185
3186            return dialog;
3187        }
3188
3189        public void onCancel(DialogInterface dialog) {
3190            mWaitingForResult = false;
3191            cleanup();
3192        }
3193
3194        public void onDismiss(DialogInterface dialog) {
3195        }
3196
3197        private void cleanup() {
3198            try {
3199                dismissDialog(DIALOG_CREATE_SHORTCUT);
3200            } catch (Exception e) {
3201                // An exception is thrown if the dialog is not visible, which is fine
3202            }
3203        }
3204
3205        /**
3206         * Handle the action clicked in the "Add to home" dialog.
3207         */
3208        public void onClick(DialogInterface dialog, int which) {
3209            Resources res = getResources();
3210            cleanup();
3211
3212            switch (which) {
3213                case AddAdapter.ITEM_SHORTCUT: {
3214                    pickShortcut();
3215                    break;
3216                }
3217
3218                case AddAdapter.ITEM_APPWIDGET: {
3219                    int appWidgetId = Launcher.this.mAppWidgetHost.allocateAppWidgetId();
3220
3221                    Intent pickIntent = new Intent(AppWidgetManager.ACTION_APPWIDGET_PICK);
3222                    pickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
3223                    // start the pick activity
3224                    startActivityForResult(pickIntent, REQUEST_PICK_APPWIDGET);
3225                    break;
3226                }
3227
3228                case AddAdapter.ITEM_LIVE_FOLDER: {
3229                    // Insert extra item to handle inserting folder
3230                    Bundle bundle = new Bundle();
3231
3232                    ArrayList<String> shortcutNames = new ArrayList<String>();
3233                    shortcutNames.add(res.getString(R.string.group_folder));
3234                    bundle.putStringArrayList(Intent.EXTRA_SHORTCUT_NAME, shortcutNames);
3235
3236                    ArrayList<ShortcutIconResource> shortcutIcons =
3237                            new ArrayList<ShortcutIconResource>();
3238                    shortcutIcons.add(ShortcutIconResource.fromContext(Launcher.this,
3239                            R.drawable.ic_launcher_folder));
3240                    bundle.putParcelableArrayList(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, shortcutIcons);
3241
3242                    Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
3243                    pickIntent.putExtra(Intent.EXTRA_INTENT,
3244                            new Intent(LiveFolders.ACTION_CREATE_LIVE_FOLDER));
3245                    pickIntent.putExtra(Intent.EXTRA_TITLE,
3246                            getText(R.string.title_select_live_folder));
3247                    pickIntent.putExtras(bundle);
3248
3249                    startActivityForResult(pickIntent, REQUEST_PICK_LIVE_FOLDER);
3250                    break;
3251                }
3252
3253                case AddAdapter.ITEM_WALLPAPER: {
3254                    startWallpaper();
3255                    break;
3256                }
3257            }
3258        }
3259
3260        public void onShow(DialogInterface dialog) {
3261            mWaitingForResult = true;
3262        }
3263    }
3264
3265    /**
3266     * Receives notifications when applications are added/removed.
3267     */
3268    private class CloseSystemDialogsIntentReceiver extends BroadcastReceiver {
3269        @Override
3270        public void onReceive(Context context, Intent intent) {
3271            closeSystemDialogs();
3272            String reason = intent.getStringExtra("reason");
3273            if (!"homekey".equals(reason)) {
3274                boolean animate = true;
3275                if (mPaused || "lock".equals(reason)) {
3276                    animate = false;
3277                }
3278                showWorkspace(animate);
3279            }
3280        }
3281    }
3282
3283    /**
3284     * Receives notifications whenever the appwidgets are reset.
3285     */
3286    private class AppWidgetResetObserver extends ContentObserver {
3287        public AppWidgetResetObserver() {
3288            super(new Handler());
3289        }
3290
3291        @Override
3292        public void onChange(boolean selfChange) {
3293            onAppWidgetReset();
3294        }
3295    }
3296
3297    /**
3298     * If the activity is currently paused, signal that we need to re-run the loader
3299     * in onResume.
3300     *
3301     * This needs to be called from incoming places where resources might have been loaded
3302     * while we are paused.  That is becaues the Configuration might be wrong
3303     * when we're not running, and if it comes back to what it was when we
3304     * were paused, we are not restarted.
3305     *
3306     * Implementation of the method from LauncherModel.Callbacks.
3307     *
3308     * @return true if we are currently paused.  The caller might be able to
3309     * skip some work in that case since we will come back again.
3310     */
3311    public boolean setLoadOnResume() {
3312        if (mPaused) {
3313            Log.i(TAG, "setLoadOnResume");
3314            mOnResumeNeedsLoad = true;
3315            return true;
3316        } else {
3317            return false;
3318        }
3319    }
3320
3321    /**
3322     * Implementation of the method from LauncherModel.Callbacks.
3323     */
3324    public int getCurrentWorkspaceScreen() {
3325        if (mWorkspace != null) {
3326            return mWorkspace.getCurrentPage();
3327        } else {
3328            return SCREEN_COUNT / 2;
3329        }
3330    }
3331
3332    void setAllAppsPagedView(AllAppsPagedView view) {
3333        mAllAppsPagedView = view;
3334    }
3335
3336    /**
3337     * Refreshes the shortcuts shown on the workspace.
3338     *
3339     * Implementation of the method from LauncherModel.Callbacks.
3340     */
3341    public void startBinding() {
3342        final Workspace workspace = mWorkspace;
3343        int count = workspace.getChildCount();
3344        for (int i = 0; i < count; i++) {
3345            // Use removeAllViewsInLayout() to avoid an extra requestLayout() and invalidate().
3346            ((ViewGroup) workspace.getChildAt(i)).removeAllViewsInLayout();
3347        }
3348
3349        if (DEBUG_USER_INTERFACE) {
3350            android.widget.Button finishButton = new android.widget.Button(this);
3351            finishButton.setText("Finish");
3352            workspace.addInScreen(finishButton, 1, 0, 0, 1, 1);
3353
3354            finishButton.setOnClickListener(new android.widget.Button.OnClickListener() {
3355                public void onClick(View v) {
3356                    finish();
3357                }
3358            });
3359        }
3360    }
3361
3362    /**
3363     * Bind the items start-end from the list.
3364     *
3365     * Implementation of the method from LauncherModel.Callbacks.
3366     */
3367    public void bindItems(ArrayList<ItemInfo> shortcuts, int start, int end) {
3368
3369        setLoadOnResume();
3370
3371        final Workspace workspace = mWorkspace;
3372
3373        for (int i=start; i<end; i++) {
3374            final ItemInfo item = shortcuts.get(i);
3375            mDesktopItems.add(item);
3376            switch (item.itemType) {
3377                case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
3378                case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
3379                    final View shortcut = createShortcut((ShortcutInfo)item);
3380                    workspace.addInScreen(shortcut, item.screen, item.cellX, item.cellY, 1, 1,
3381                            false);
3382                    break;
3383                case LauncherSettings.Favorites.ITEM_TYPE_USER_FOLDER:
3384                    final FolderIcon newFolder = FolderIcon.fromXml(R.layout.folder_icon, this,
3385                            (ViewGroup) workspace.getChildAt(workspace.getCurrentPage()),
3386                            (UserFolderInfo) item, mIconCache);
3387                    workspace.addInScreen(newFolder, item.screen, item.cellX, item.cellY, 1, 1,
3388                            false);
3389                    break;
3390                case LauncherSettings.Favorites.ITEM_TYPE_LIVE_FOLDER:
3391                    final FolderIcon newLiveFolder = LiveFolderIcon.fromXml(
3392                            R.layout.live_folder_icon, this,
3393                            (ViewGroup) workspace.getChildAt(workspace.getCurrentPage()),
3394                            (LiveFolderInfo) item);
3395                    workspace.addInScreen(newLiveFolder, item.screen, item.cellX, item.cellY, 1, 1,
3396                            false);
3397                    break;
3398            }
3399        }
3400
3401        workspace.requestLayout();
3402    }
3403
3404    /**
3405     * Implementation of the method from LauncherModel.Callbacks.
3406     */
3407    public void bindFolders(HashMap<Long, FolderInfo> folders) {
3408        setLoadOnResume();
3409        sFolders.clear();
3410        sFolders.putAll(folders);
3411    }
3412
3413    /**
3414     * Add the views for a widget to the workspace.
3415     *
3416     * Implementation of the method from LauncherModel.Callbacks.
3417     */
3418    public void bindAppWidget(LauncherAppWidgetInfo item) {
3419        setLoadOnResume();
3420
3421        final long start = DEBUG_WIDGETS ? SystemClock.uptimeMillis() : 0;
3422        if (DEBUG_WIDGETS) {
3423            Log.d(TAG, "bindAppWidget: " + item);
3424        }
3425        final Workspace workspace = mWorkspace;
3426
3427        final int appWidgetId = item.appWidgetId;
3428        final AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
3429        if (DEBUG_WIDGETS) {
3430            Log.d(TAG, "bindAppWidget: id=" + item.appWidgetId + " belongs to component " + appWidgetInfo.provider);
3431        }
3432
3433        item.hostView = mAppWidgetHost.createView(this, appWidgetId, appWidgetInfo);
3434
3435        item.hostView.setAppWidget(appWidgetId, appWidgetInfo);
3436        item.hostView.setTag(item);
3437
3438        workspace.addInScreen(item.hostView, item.screen, item.cellX,
3439                item.cellY, item.spanX, item.spanY, false);
3440
3441        addWidgetToAutoAdvanceIfNeeded(item.hostView, appWidgetInfo);
3442
3443        workspace.requestLayout();
3444
3445        mDesktopItems.add(item);
3446
3447        if (DEBUG_WIDGETS) {
3448            Log.d(TAG, "bound widget id="+item.appWidgetId+" in "
3449                    + (SystemClock.uptimeMillis()-start) + "ms");
3450        }
3451    }
3452
3453    /**
3454     * Callback saying that there aren't any more items to bind.
3455     *
3456     * Implementation of the method from LauncherModel.Callbacks.
3457     */
3458    public void finishBindingItems() {
3459        setLoadOnResume();
3460
3461        if (mSavedState != null) {
3462            if (!mWorkspace.hasFocus()) {
3463                mWorkspace.getChildAt(mWorkspace.getCurrentPage()).requestFocus();
3464            }
3465
3466            final long[] userFolders = mSavedState.getLongArray(RUNTIME_STATE_USER_FOLDERS);
3467            if (userFolders != null) {
3468                for (long folderId : userFolders) {
3469                    final FolderInfo info = sFolders.get(folderId);
3470                    if (info != null) {
3471                        openFolder(info);
3472                    }
3473                }
3474                final Folder openFolder = mWorkspace.getOpenFolder();
3475                if (openFolder != null) {
3476                    openFolder.requestFocus();
3477                }
3478            }
3479
3480            mSavedState = null;
3481        }
3482
3483        if (mSavedInstanceState != null) {
3484            super.onRestoreInstanceState(mSavedInstanceState);
3485            mSavedInstanceState = null;
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    /**
3573     * Prints out out state for debugging.
3574     */
3575    public void dumpState() {
3576        Log.d(TAG, "BEGIN launcher2 dump state for launcher " + this);
3577        Log.d(TAG, "mSavedState=" + mSavedState);
3578        Log.d(TAG, "mWorkspaceLoading=" + mWorkspaceLoading);
3579        Log.d(TAG, "mRestoring=" + mRestoring);
3580        Log.d(TAG, "mWaitingForResult=" + mWaitingForResult);
3581        Log.d(TAG, "mSavedInstanceState=" + mSavedInstanceState);
3582        Log.d(TAG, "mDesktopItems.size=" + mDesktopItems.size());
3583        Log.d(TAG, "sFolders.size=" + sFolders.size());
3584        mModel.dumpState();
3585        mAllAppsGrid.dumpState();
3586        Log.d(TAG, "END launcher2 dump state");
3587    }
3588}
3589