Launcher.java revision e7bf83b0a3250d73ef2c4c2dfa9d7fafb6847985 
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.Workspace.ShrinkState;
23
24import android.animation.Animator;
25import android.animation.AnimatorSet;
26import android.animation.ObjectAnimator;
27import android.animation.PropertyValuesHolder;
28import android.animation.ValueAnimator;
29import android.app.Activity;
30import android.app.AlertDialog;
31import android.app.Dialog;
32import android.app.SearchManager;
33import android.app.StatusBarManager;
34import android.app.WallpaperManager;
35import android.appwidget.AppWidgetManager;
36import android.appwidget.AppWidgetProviderInfo;
37import android.content.ActivityNotFoundException;
38import android.content.BroadcastReceiver;
39import android.content.ClipData;
40import android.content.ClipDescription;
41import android.content.ComponentName;
42import android.content.ContentResolver;
43import android.content.Context;
44import android.content.DialogInterface;
45import android.content.Intent;
46import android.content.IntentFilter;
47import android.content.Intent.ShortcutIconResource;
48import android.content.pm.ActivityInfo;
49import android.content.pm.PackageManager;
50import android.content.pm.ResolveInfo;
51import android.content.pm.PackageManager.NameNotFoundException;
52import android.content.res.Configuration;
53import android.content.res.Resources;
54import android.content.res.TypedArray;
55import android.database.ContentObserver;
56import android.graphics.Bitmap;
57import android.graphics.Canvas;
58import android.graphics.Rect;
59import android.graphics.drawable.ColorDrawable;
60import android.graphics.drawable.Drawable;
61import android.net.Uri;
62import android.os.AsyncTask;
63import android.os.Bundle;
64import android.os.Environment;
65import android.os.Handler;
66import android.os.Message;
67import android.os.Parcelable;
68import android.os.SystemClock;
69import android.os.SystemProperties;
70import android.provider.LiveFolders;
71import android.provider.Settings;
72import android.speech.RecognizerIntent;
73import android.text.Selection;
74import android.text.SpannableStringBuilder;
75import android.text.TextUtils;
76import android.text.method.TextKeyListener;
77import android.util.Log;
78import android.view.Display;
79import android.view.HapticFeedbackConstants;
80import android.view.KeyEvent;
81import android.view.LayoutInflater;
82import android.view.Menu;
83import android.view.MenuItem;
84import android.view.MotionEvent;
85import android.view.View;
86import android.view.ViewGroup;
87import android.view.WindowManager;
88import android.view.View.OnLongClickListener;
89import android.view.inputmethod.InputMethodManager;
90import android.widget.Advanceable;
91import android.widget.EditText;
92import android.widget.ImageView;
93import android.widget.LinearLayout;
94import android.widget.PopupWindow;
95import android.widget.TabHost;
96import android.widget.TabWidget;
97import android.widget.TextView;
98import android.widget.Toast;
99import android.widget.TabHost.OnTabChangeListener;
100import android.widget.TabHost.TabContentFactory;
101
102import java.io.DataInputStream;
103import java.io.DataOutputStream;
104import java.io.FileNotFoundException;
105import java.io.IOException;
106import java.util.ArrayList;
107import java.util.HashMap;
108import java.util.List;
109
110
111/**
112 * Default launcher application.
113 */
114public final class Launcher extends Activity
115        implements View.OnClickListener, OnLongClickListener, LauncherModel.Callbacks,
116                   AllAppsView.Watcher, View.OnTouchListener {
117    static final String TAG = "Launcher";
118    static final boolean LOGD = false;
119
120    static final boolean PROFILE_STARTUP = false;
121    static final boolean DEBUG_WIDGETS = false;
122    static final boolean DEBUG_USER_INTERFACE = false;
123
124    private static final int MENU_GROUP_ADD = 1;
125    private static final int MENU_GROUP_WALLPAPER = MENU_GROUP_ADD + 1;
126
127    private static final int MENU_ADD = Menu.FIRST + 1;
128    private static final int MENU_MANAGE_APPS = MENU_ADD + 1;
129    private static final int MENU_WALLPAPER_SETTINGS = MENU_MANAGE_APPS + 1;
130    private static final int MENU_SEARCH = MENU_WALLPAPER_SETTINGS + 1;
131    private static final int MENU_NOTIFICATIONS = MENU_SEARCH + 1;
132    private static final int MENU_SETTINGS = MENU_NOTIFICATIONS + 1;
133
134    private static final int REQUEST_CREATE_SHORTCUT = 1;
135    private static final int REQUEST_CREATE_LIVE_FOLDER = 4;
136    private static final int REQUEST_CREATE_APPWIDGET = 5;
137    private static final int REQUEST_PICK_APPLICATION = 6;
138    private static final int REQUEST_PICK_SHORTCUT = 7;
139    private static final int REQUEST_PICK_LIVE_FOLDER = 8;
140    private static final int REQUEST_PICK_APPWIDGET = 9;
141    private static final int REQUEST_PICK_WALLPAPER = 10;
142
143    static final String EXTRA_SHORTCUT_DUPLICATE = "duplicate";
144
145    static final int SCREEN_COUNT = 5;
146    static final int DEFAULT_SCREEN = 2;
147
148    static final int DIALOG_CREATE_SHORTCUT = 1;
149    static final int DIALOG_RENAME_FOLDER = 2;
150
151    private static final String PREFERENCES = "launcher.preferences";
152
153    // Type: int
154    private static final String RUNTIME_STATE_CURRENT_SCREEN = "launcher.current_screen";
155    // Type: int
156    private static final String RUNTIME_STATE = "launcher.state";
157    // Type: long
158    private static final String RUNTIME_STATE_USER_FOLDERS = "launcher.user_folder";
159    // Type: int
160    private static final String RUNTIME_STATE_PENDING_ADD_SCREEN = "launcher.add_screen";
161    // Type: int
162    private static final String RUNTIME_STATE_PENDING_ADD_CELL_X = "launcher.add_cellX";
163    // Type: int
164    private static final String RUNTIME_STATE_PENDING_ADD_CELL_Y = "launcher.add_cellY";
165    // Type: boolean
166    private static final String RUNTIME_STATE_PENDING_FOLDER_RENAME = "launcher.rename_folder";
167    // Type: long
168    private static final String RUNTIME_STATE_PENDING_FOLDER_RENAME_ID = "launcher.rename_folder_id";
169
170    // tags for the customization tabs
171    private static final String WIDGETS_TAG = "widgets";
172    private static final String APPLICATIONS_TAG = "applications";
173    private static final String SHORTCUTS_TAG = "shortcuts";
174    private static final String WALLPAPERS_TAG = "wallpapers";
175
176    private static final String TOOLBAR_ICON_METADATA_NAME = "com.android.launcher.toolbar_icon";
177
178    /** The different states that Launcher can be in. */
179    private enum State { WORKSPACE, ALL_APPS, CUSTOMIZE, OVERVIEW,
180        CUSTOMIZE_SPRING_LOADED, ALL_APPS_SPRING_LOADED };
181    private State mState = State.WORKSPACE;
182    private AnimatorSet mStateAnimation;
183
184    static final int APPWIDGET_HOST_ID = 1024;
185
186    private static final Object sLock = new Object();
187    private static int sScreen = DEFAULT_SCREEN;
188
189    private final BroadcastReceiver mCloseSystemDialogsReceiver
190            = new CloseSystemDialogsIntentReceiver();
191    private final ContentObserver mWidgetObserver = new AppWidgetResetObserver();
192
193    private LayoutInflater mInflater;
194
195    private DragController mDragController;
196    private Workspace mWorkspace;
197
198    private AppWidgetManager mAppWidgetManager;
199    private LauncherAppWidgetHost mAppWidgetHost;
200
201    private int mAddScreen = -1;
202    private int mAddIntersectCellX = -1;
203    private int mAddIntersectCellY = -1;
204    private int[] mAddDropPosition;
205    private int[] mTmpAddItemCellCoordinates = new int[2];
206
207    private FolderInfo mFolderInfo;
208
209    private DeleteZone mDeleteZone;
210    private HandleView mHandleView;
211    private AllAppsView mAllAppsGrid;
212    private TabHost mHomeCustomizationDrawer;
213    private boolean mAutoAdvanceRunning = false;
214
215    private PagedView mAllAppsPagedView = null;
216    private CustomizePagedView mCustomizePagedView = null;
217
218    private Bundle mSavedState;
219
220    private SpannableStringBuilder mDefaultKeySsb = null;
221
222    private boolean mWorkspaceLoading = true;
223
224    private boolean mPaused = true;
225    private boolean mRestoring;
226    private boolean mWaitingForResult;
227    private boolean mOnResumeNeedsLoad;
228
229    private Bundle mSavedInstanceState;
230
231    private LauncherModel mModel;
232    private IconCache mIconCache;
233    private boolean mUserPresent = true;
234    private boolean mVisible = false;
235    private boolean mAttached = false;
236
237    private static LocaleConfiguration sLocaleConfiguration = null;
238
239    private ArrayList<ItemInfo> mDesktopItems = new ArrayList<ItemInfo>();
240
241    private static HashMap<Long, FolderInfo> sFolders = new HashMap<Long, FolderInfo>();
242
243    private ImageView mPreviousView;
244    private ImageView mNextView;
245
246    // Hotseats (quick-launch icons next to AllApps)
247    private String[] mHotseatConfig = null;
248    private Intent[] mHotseats = null;
249    private Drawable[] mHotseatIcons = null;
250    private CharSequence[] mHotseatLabels = null;
251
252    private Intent mAppMarketIntent = null;
253
254    // Related to the auto-advancing of widgets
255    private final int ADVANCE_MSG = 1;
256    private final int mAdvanceInterval = 20000;
257    private final int mAdvanceStagger = 250;
258    private long mAutoAdvanceSentTime;
259    private long mAutoAdvanceTimeLeft = -1;
260    private HashMap<View, AppWidgetProviderInfo> mWidgetsToAdvance =
261        new HashMap<View, AppWidgetProviderInfo>();
262
263    // External icons saved in case of resource changes, orientation, etc.
264    private static Drawable.ConstantState sGlobalSearchIcon;
265    private static Drawable.ConstantState sVoiceSearchIcon;
266    private static Drawable.ConstantState sAppMarketIcon;
267
268    @Override
269    protected void onCreate(Bundle savedInstanceState) {
270        super.onCreate(savedInstanceState);
271
272        if (LauncherApplication.isInPlaceRotationEnabled()) {
273            // hide the status bar (temporary until we get the status bar design figured out)
274            getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
275            this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR);
276        }
277
278        LauncherApplication app = ((LauncherApplication)getApplication());
279        mModel = app.setLauncher(this);
280        mIconCache = app.getIconCache();
281        mDragController = new DragController(this);
282        mInflater = getLayoutInflater();
283
284        mAppWidgetManager = AppWidgetManager.getInstance(this);
285        mAppWidgetHost = new LauncherAppWidgetHost(this, APPWIDGET_HOST_ID);
286        mAppWidgetHost.startListening();
287
288        if (PROFILE_STARTUP) {
289            android.os.Debug.startMethodTracing(
290                    Environment.getExternalStorageDirectory() + "/launcher");
291        }
292
293        loadHotseats();
294        checkForLocaleChange();
295        setWallpaperDimension();
296        setContentView(R.layout.launcher);
297        mHomeCustomizationDrawer = (TabHost) findViewById(R.id.customization_drawer);
298        if (mHomeCustomizationDrawer != null) {
299            mHomeCustomizationDrawer.setup();
300
301            // share the same customization workspace across all the tabs
302            mCustomizePagedView = (CustomizePagedView) mInflater.inflate(
303                    R.layout.customization_drawer, mHomeCustomizationDrawer, false);
304            TabContentFactory contentFactory = new TabContentFactory() {
305                public View createTabContent(String tag) {
306                    return mCustomizePagedView;
307                }
308            };
309
310
311            TextView tabView;
312            TabWidget tabWidget = (TabWidget)
313                    mHomeCustomizationDrawer.findViewById(com.android.internal.R.id.tabs);
314
315            tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false);
316            tabView.setText(getString(R.string.widgets_tab_label));
317            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec(WIDGETS_TAG)
318                    .setIndicator(tabView).setContent(contentFactory));
319            tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false);
320            tabView.setText(getString(R.string.applications_tab_label));
321            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec(APPLICATIONS_TAG)
322                    .setIndicator(tabView).setContent(contentFactory));
323            tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false);
324            tabView.setText(getString(R.string.wallpapers_tab_label));
325            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec(WALLPAPERS_TAG)
326                    .setIndicator(tabView).setContent(contentFactory));
327            tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false);
328            tabView.setText(getString(R.string.shortcuts_tab_label));
329            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec(SHORTCUTS_TAG)
330                    .setIndicator(tabView).setContent(contentFactory));
331            mHomeCustomizationDrawer.setOnTabChangedListener(new OnTabChangeListener() {
332                public void onTabChanged(String tabId) {
333                    // animate the changing of the tab content by fading pages in and out
334                    final Resources res = getResources();
335                    final int duration = res.getInteger(R.integer.config_tabTransitionTime);
336                    final float alpha = mCustomizePagedView.getAlpha();
337                    ValueAnimator alphaAnim = ObjectAnimator.ofFloat(mCustomizePagedView,
338                            "alpha", alpha, 0.0f);
339                    alphaAnim.setDuration(duration);
340                    alphaAnim.addListener(new LauncherAnimatorListenerAdapter() {
341                        @Override
342                        public void onAnimationEndOrCancel(Animator animation) {
343                            String tag = mHomeCustomizationDrawer.getCurrentTabTag();
344                            if (tag == WIDGETS_TAG) {
345                                mCustomizePagedView.setCustomizationFilter(
346                                    CustomizePagedView.CustomizationType.WidgetCustomization);
347                            } else if (tag == APPLICATIONS_TAG) {
348                                mCustomizePagedView.setCustomizationFilter(
349                                        CustomizePagedView.CustomizationType.ApplicationCustomization);
350                            } else if (tag == WALLPAPERS_TAG) {
351                                mCustomizePagedView.setCustomizationFilter(
352                                    CustomizePagedView.CustomizationType.WallpaperCustomization);
353                            } else if (tag == SHORTCUTS_TAG) {
354                                mCustomizePagedView.setCustomizationFilter(
355                                        CustomizePagedView.CustomizationType.ShortcutCustomization);
356                            }
357
358                            final float alpha = mCustomizePagedView.getAlpha();
359                            ValueAnimator alphaAnim = ObjectAnimator.ofFloat(
360                                    mCustomizePagedView, "alpha", alpha, 1.0f);
361                            alphaAnim.setDuration(duration);
362                            alphaAnim.start();
363                        }
364                    });
365                    alphaAnim.start();
366                }
367            });
368        }
369        setupViews();
370
371        registerContentObservers();
372
373        lockAllApps();
374
375        mSavedState = savedInstanceState;
376        restoreState(mSavedState);
377
378        if (PROFILE_STARTUP) {
379            android.os.Debug.stopMethodTracing();
380        }
381
382        if (!mRestoring) {
383            mModel.startLoader(this, true);
384        }
385
386        // For handling default keys
387        mDefaultKeySsb = new SpannableStringBuilder();
388        Selection.setSelection(mDefaultKeySsb, 0);
389
390        IntentFilter filter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
391        registerReceiver(mCloseSystemDialogsReceiver, filter);
392
393        // If we have a saved version of these external icons, we load them up immediately
394        if (LauncherApplication.isScreenXLarge()) {
395            if (sGlobalSearchIcon != null) {
396                updateGlobalSearchIcon(sGlobalSearchIcon);
397            }
398            if (sVoiceSearchIcon != null) {
399                updateVoiceSearchIcon(sVoiceSearchIcon);
400            }
401            if (sAppMarketIcon != null) {
402                updateAppMarketIcon(sAppMarketIcon);
403            }
404        }
405    }
406
407    private void checkForLocaleChange() {
408        if (sLocaleConfiguration == null) {
409            new AsyncTask<Void, Void, LocaleConfiguration>() {
410                @Override
411                protected LocaleConfiguration doInBackground(Void... unused) {
412                    LocaleConfiguration localeConfiguration = new LocaleConfiguration();
413                    readConfiguration(Launcher.this, localeConfiguration);
414                    return localeConfiguration;
415                }
416
417                @Override
418                protected void onPostExecute(LocaleConfiguration result) {
419                    sLocaleConfiguration = result;
420                    checkForLocaleChange();  // recursive, but now with a locale configuration
421                }
422            }.execute();
423            return;
424        }
425
426        final Configuration configuration = getResources().getConfiguration();
427
428        final String previousLocale = sLocaleConfiguration.locale;
429        final String locale = configuration.locale.toString();
430
431        final int previousMcc = sLocaleConfiguration.mcc;
432        final int mcc = configuration.mcc;
433
434        final int previousMnc = sLocaleConfiguration.mnc;
435        final int mnc = configuration.mnc;
436
437        boolean localeChanged = !locale.equals(previousLocale) || mcc != previousMcc || mnc != previousMnc;
438
439        if (localeChanged) {
440            sLocaleConfiguration.locale = locale;
441            sLocaleConfiguration.mcc = mcc;
442            sLocaleConfiguration.mnc = mnc;
443
444            mIconCache.flush();
445            loadHotseats();
446
447            final LocaleConfiguration localeConfiguration = sLocaleConfiguration;
448            new Thread("WriteLocaleConfiguration") {
449                @Override
450                public void run() {
451                    writeConfiguration(Launcher.this, localeConfiguration);
452                }
453            }.start();
454        }
455    }
456
457    private static class LocaleConfiguration {
458        public String locale;
459        public int mcc = -1;
460        public int mnc = -1;
461    }
462
463    private static void readConfiguration(Context context, LocaleConfiguration configuration) {
464        DataInputStream in = null;
465        try {
466            in = new DataInputStream(context.openFileInput(PREFERENCES));
467            configuration.locale = in.readUTF();
468            configuration.mcc = in.readInt();
469            configuration.mnc = in.readInt();
470        } catch (FileNotFoundException e) {
471            // Ignore
472        } catch (IOException e) {
473            // Ignore
474        } finally {
475            if (in != null) {
476                try {
477                    in.close();
478                } catch (IOException e) {
479                    // Ignore
480                }
481            }
482        }
483    }
484
485    private static void writeConfiguration(Context context, LocaleConfiguration configuration) {
486        DataOutputStream out = null;
487        try {
488            out = new DataOutputStream(context.openFileOutput(PREFERENCES, MODE_PRIVATE));
489            out.writeUTF(configuration.locale);
490            out.writeInt(configuration.mcc);
491            out.writeInt(configuration.mnc);
492            out.flush();
493        } catch (FileNotFoundException e) {
494            // Ignore
495        } catch (IOException e) {
496            //noinspection ResultOfMethodCallIgnored
497            context.getFileStreamPath(PREFERENCES).delete();
498        } finally {
499            if (out != null) {
500                try {
501                    out.close();
502                } catch (IOException e) {
503                    // Ignore
504                }
505            }
506        }
507    }
508
509    static int getScreen() {
510        synchronized (sLock) {
511            return sScreen;
512        }
513    }
514
515    static void setScreen(int screen) {
516        synchronized (sLock) {
517            sScreen = screen;
518        }
519    }
520
521    private void setWallpaperDimension() {
522        WallpaperManager wpm = (WallpaperManager)getSystemService(WALLPAPER_SERVICE);
523
524        Display display = getWindowManager().getDefaultDisplay();
525        // TODO: Put back when we decide about scrolling the wallpaper
526        // boolean isPortrait = display.getWidth() < display.getHeight();
527        // final int width = isPortrait ? display.getWidth() : display.getHeight();
528        // final int height = isPortrait ? display.getHeight() : display.getWidth();
529        wpm.suggestDesiredDimensions(Math.max(display.getWidth(), display.getHeight()),
530                Math.max(display.getWidth(), display.getHeight()));
531    }
532
533    // Note: This doesn't do all the client-id magic that BrowserProvider does
534    // in Browser. (http://b/2425179)
535    private Uri getDefaultBrowserUri() {
536        String url = getString(R.string.default_browser_url);
537        if (url.indexOf("{CID}") != -1) {
538            url = url.replace("{CID}", "android-google");
539        }
540        return Uri.parse(url);
541    }
542
543    // Load the Intent templates from arrays.xml to populate the hotseats. For
544    // each Intent, if it resolves to a single app, use that as the launch
545    // intent & use that app's label as the contentDescription. Otherwise,
546    // retain the ResolveActivity so the user can pick an app.
547    private void loadHotseats() {
548        if (mHotseatConfig == null) {
549            mHotseatConfig = getResources().getStringArray(R.array.hotseats);
550            if (mHotseatConfig.length > 0) {
551                mHotseats = new Intent[mHotseatConfig.length];
552                mHotseatLabels = new CharSequence[mHotseatConfig.length];
553                mHotseatIcons = new Drawable[mHotseatConfig.length];
554            } else {
555                mHotseats = null;
556                mHotseatIcons = null;
557                mHotseatLabels = null;
558            }
559
560            TypedArray hotseatIconDrawables = getResources().obtainTypedArray(R.array.hotseat_icons);
561            for (int i=0; i<mHotseatConfig.length; i++) {
562                // load icon for this slot; currently unrelated to the actual activity
563                try {
564                    mHotseatIcons[i] = hotseatIconDrawables.getDrawable(i);
565                } catch (ArrayIndexOutOfBoundsException ex) {
566                    Log.w(TAG, "Missing hotseat_icons array item #" + i);
567                    mHotseatIcons[i] = null;
568                }
569            }
570            hotseatIconDrawables.recycle();
571        }
572
573        PackageManager pm = getPackageManager();
574        for (int i=0; i<mHotseatConfig.length; i++) {
575            Intent intent = null;
576            if (mHotseatConfig[i].equals("*BROWSER*")) {
577                // magic value meaning "launch user's default web browser"
578                // replace it with a generic web request so we can see if there is indeed a default
579                String defaultUri = getString(R.string.default_browser_url);
580                intent = new Intent(
581                        Intent.ACTION_VIEW,
582                        ((defaultUri != null)
583                            ? Uri.parse(defaultUri)
584                            : getDefaultBrowserUri())
585                    ).addCategory(Intent.CATEGORY_BROWSABLE);
586                // note: if the user launches this without a default set, she
587                // will always be taken to the default URL above; this is
588                // unavoidable as we must specify a valid URL in order for the
589                // chooser to appear, and once the user selects something, that
590                // URL is unavoidably sent to the chosen app.
591            } else {
592                try {
593                    intent = Intent.parseUri(mHotseatConfig[i], 0);
594                } catch (java.net.URISyntaxException ex) {
595                    Log.w(TAG, "Invalid hotseat intent: " + mHotseatConfig[i]);
596                    // bogus; leave intent=null
597                }
598            }
599
600            if (intent == null) {
601                mHotseats[i] = null;
602                mHotseatLabels[i] = getText(R.string.activity_not_found);
603                continue;
604            }
605
606            if (LOGD) {
607                Log.d(TAG, "loadHotseats: hotseat " + i
608                    + " initial intent=["
609                    + intent.toUri(Intent.URI_INTENT_SCHEME)
610                    + "]");
611            }
612
613            ResolveInfo bestMatch = pm.resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);
614            List<ResolveInfo> allMatches = pm.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
615            if (LOGD) {
616                Log.d(TAG, "Best match for intent: " + bestMatch);
617                Log.d(TAG, "All matches: ");
618                for (ResolveInfo ri : allMatches) {
619                    Log.d(TAG, "  --> " + ri);
620                }
621            }
622            // did this resolve to a single app, or the resolver?
623            if (allMatches.size() == 0 || bestMatch == null) {
624                // can't find any activity to handle this. let's leave the
625                // intent as-is and let Launcher show a toast when it fails
626                // to launch.
627                mHotseats[i] = intent;
628
629                // set accessibility text to "Not installed"
630                mHotseatLabels[i] = getText(R.string.activity_not_found);
631            } else {
632                boolean found = false;
633                for (ResolveInfo ri : allMatches) {
634                    if (bestMatch.activityInfo.name.equals(ri.activityInfo.name)
635                        && bestMatch.activityInfo.applicationInfo.packageName
636                            .equals(ri.activityInfo.applicationInfo.packageName)) {
637                        found = true;
638                        break;
639                    }
640                }
641
642                if (!found) {
643                    if (LOGD) Log.d(TAG, "Multiple options, no default yet");
644                    // the bestMatch is probably the ResolveActivity, meaning the
645                    // user has not yet selected a default
646                    // so: we'll keep the original intent for now
647                    mHotseats[i] = intent;
648
649                    // set the accessibility text to "Select shortcut"
650                    mHotseatLabels[i] = getText(R.string.title_select_shortcut);
651                } else {
652                    // we have an app!
653                    // now reconstruct the intent to launch it through the front
654                    // door
655                    ComponentName com = new ComponentName(
656                        bestMatch.activityInfo.applicationInfo.packageName,
657                        bestMatch.activityInfo.name);
658                    mHotseats[i] = new Intent(Intent.ACTION_MAIN).setComponent(com);
659
660                    // load the app label for accessibility
661                    mHotseatLabels[i] = bestMatch.activityInfo.loadLabel(pm);
662                }
663            }
664
665            if (LOGD) {
666                Log.d(TAG, "loadHotseats: hotseat " + i
667                    + " final intent=["
668                    + ((mHotseats[i] == null)
669                        ? "null"
670                        : mHotseats[i].toUri(Intent.URI_INTENT_SCHEME))
671                    + "] label=[" + mHotseatLabels[i]
672                    + "]"
673                    );
674            }
675        }
676    }
677
678    @Override
679    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
680        mWaitingForResult = false;
681
682        // The pattern used here is that a user PICKs a specific application,
683        // which, depending on the target, might need to CREATE the actual target.
684
685        // For example, the user would PICK_SHORTCUT for "Music playlist", and we
686        // launch over to the Music app to actually CREATE_SHORTCUT.
687
688        if (resultCode == RESULT_OK && mAddScreen != -1) {
689            switch (requestCode) {
690                case REQUEST_PICK_APPLICATION:
691                    completeAddApplication(
692                            this, data, mAddScreen, mAddIntersectCellX, mAddIntersectCellY);
693                    break;
694                case REQUEST_PICK_SHORTCUT:
695                    processShortcut(data);
696                    break;
697                case REQUEST_CREATE_SHORTCUT:
698                    completeAddShortcut(data, mAddScreen, mAddIntersectCellX, mAddIntersectCellY);
699                    break;
700                case REQUEST_PICK_LIVE_FOLDER:
701                    addLiveFolder(data);
702                    break;
703                case REQUEST_CREATE_LIVE_FOLDER:
704                    completeAddLiveFolder(data, mAddScreen, mAddIntersectCellX, mAddIntersectCellY);
705                    break;
706                case REQUEST_PICK_APPWIDGET:
707                    addAppWidgetFromPick(data);
708                    break;
709                case REQUEST_CREATE_APPWIDGET:
710                    int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
711                    completeAddAppWidget(appWidgetId, mAddScreen);
712                    break;
713                case REQUEST_PICK_WALLPAPER:
714                    // We just wanted the activity result here so we can clear mWaitingForResult
715                    break;
716            }
717        } else if ((requestCode == REQUEST_PICK_APPWIDGET ||
718                requestCode == REQUEST_CREATE_APPWIDGET) && resultCode == RESULT_CANCELED &&
719                data != null) {
720            // Clean up the appWidgetId if we canceled
721            int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
722            if (appWidgetId != -1) {
723                mAppWidgetHost.deleteAppWidgetId(appWidgetId);
724            }
725        }
726    }
727
728    @Override
729    protected void onResume() {
730        super.onResume();
731        mPaused = false;
732        if (mRestoring || mOnResumeNeedsLoad) {
733            mWorkspaceLoading = true;
734            mModel.startLoader(this, true);
735            mRestoring = false;
736            mOnResumeNeedsLoad = false;
737        }
738        // When we resume Launcher, a different Activity might be responsible for the app
739        // market intent, so refresh the icon
740        updateAppMarketIcon();
741    }
742
743    @Override
744    protected void onPause() {
745        super.onPause();
746        // Some launcher layouts don't have a previous and next view
747        if (mPreviousView != null) {
748            dismissPreview(mPreviousView);
749        }
750        if (mNextView != null) {
751            dismissPreview(mNextView);
752        }
753        mPaused = true;
754        mDragController.cancelDrag();
755    }
756
757    @Override
758    public Object onRetainNonConfigurationInstance() {
759        // Flag the loader to stop early before switching
760        mModel.stopLoader();
761        mAllAppsGrid.surrender();
762        return Boolean.TRUE;
763    }
764
765    // We can't hide the IME if it was forced open.  So don't bother
766    /*
767    @Override
768    public void onWindowFocusChanged(boolean hasFocus) {
769        super.onWindowFocusChanged(hasFocus);
770
771        if (hasFocus) {
772            final InputMethodManager inputManager = (InputMethodManager)
773                    getSystemService(Context.INPUT_METHOD_SERVICE);
774            WindowManager.LayoutParams lp = getWindow().getAttributes();
775            inputManager.hideSoftInputFromWindow(lp.token, 0, new android.os.ResultReceiver(new
776                        android.os.Handler()) {
777                        protected void onReceiveResult(int resultCode, Bundle resultData) {
778                            Log.d(TAG, "ResultReceiver got resultCode=" + resultCode);
779                        }
780                    });
781            Log.d(TAG, "called hideSoftInputFromWindow from onWindowFocusChanged");
782        }
783    }
784    */
785
786    private boolean acceptFilter() {
787        final InputMethodManager inputManager = (InputMethodManager)
788                getSystemService(Context.INPUT_METHOD_SERVICE);
789        return !inputManager.isFullscreenMode();
790    }
791
792    @Override
793    public boolean onKeyDown(int keyCode, KeyEvent event) {
794        boolean handled = super.onKeyDown(keyCode, event);
795        if (!handled && acceptFilter() && keyCode != KeyEvent.KEYCODE_ENTER) {
796            boolean gotKey = TextKeyListener.getInstance().onKeyDown(mWorkspace, mDefaultKeySsb,
797                    keyCode, event);
798            if (gotKey && mDefaultKeySsb != null && mDefaultKeySsb.length() > 0) {
799                // something usable has been typed - start a search
800                // the typed text will be retrieved and cleared by
801                // showSearchDialog()
802                // If there are multiple keystrokes before the search dialog takes focus,
803                // onSearchRequested() will be called for every keystroke,
804                // but it is idempotent, so it's fine.
805                return onSearchRequested();
806            }
807        }
808
809        // Eat the long press event so the keyboard doesn't come up.
810        if (keyCode == KeyEvent.KEYCODE_MENU && event.isLongPress()) {
811            return true;
812        }
813
814        return handled;
815    }
816
817    private String getTypedText() {
818        return mDefaultKeySsb.toString();
819    }
820
821    private void clearTypedText() {
822        mDefaultKeySsb.clear();
823        mDefaultKeySsb.clearSpans();
824        Selection.setSelection(mDefaultKeySsb, 0);
825    }
826
827    /**
828     * Given the integer (ordinal) value of a State enum instance, convert it to a variable of type
829     * State
830     */
831    private static State intToState(int stateOrdinal) {
832        State state = State.WORKSPACE;
833        final State[] stateValues = State.values();
834        for (int i = 0; i < stateValues.length; i++) {
835            if (stateValues[i].ordinal() == stateOrdinal) {
836                state = stateValues[i];
837                break;
838            }
839        }
840        return state;
841    }
842
843    /**
844     * Restores the previous state, if it exists.
845     *
846     * @param savedState The previous state.
847     */
848    private void restoreState(Bundle savedState) {
849        if (savedState == null) {
850            return;
851        }
852
853        State state = intToState(savedState.getInt(RUNTIME_STATE, State.WORKSPACE.ordinal()));
854
855        if (state == State.ALL_APPS) {
856            showAllApps(false);
857        } else if (state == State.CUSTOMIZE) {
858            showCustomizationDrawer(false);
859        }
860
861        final int currentScreen = savedState.getInt(RUNTIME_STATE_CURRENT_SCREEN, -1);
862        if (currentScreen > -1) {
863            mWorkspace.setCurrentPage(currentScreen);
864        }
865
866        final int addScreen = savedState.getInt(RUNTIME_STATE_PENDING_ADD_SCREEN, -1);
867
868        if (addScreen > -1) {
869            mAddScreen = addScreen;
870            mAddIntersectCellX = savedState.getInt(RUNTIME_STATE_PENDING_ADD_CELL_X);
871            mAddIntersectCellY = savedState.getInt(RUNTIME_STATE_PENDING_ADD_CELL_Y);
872            mRestoring = true;
873        }
874
875        boolean renameFolder = savedState.getBoolean(RUNTIME_STATE_PENDING_FOLDER_RENAME, false);
876        if (renameFolder) {
877            long id = savedState.getLong(RUNTIME_STATE_PENDING_FOLDER_RENAME_ID);
878            mFolderInfo = mModel.getFolderById(this, sFolders, id);
879            mRestoring = true;
880        }
881    }
882
883    /**
884     * Finds all the views we need and configure them properly.
885     */
886    private void setupViews() {
887        final DragController dragController = mDragController;
888
889        DragLayer dragLayer = (DragLayer) findViewById(R.id.drag_layer);
890        dragLayer.setDragController(dragController);
891
892        mAllAppsGrid = (AllAppsView)dragLayer.findViewById(R.id.all_apps_view);
893        mAllAppsGrid.setLauncher(this);
894        mAllAppsGrid.setDragController(dragController);
895        ((View) mAllAppsGrid).setWillNotDraw(false); // We don't want a hole punched in our window.
896        // Manage focusability manually since this thing is always visible (in non-xlarge)
897        ((View) mAllAppsGrid).setFocusable(false);
898
899        if (LauncherApplication.isScreenXLarge()) {
900            // They need to be INVISIBLE initially so that they will be measured in the layout.
901            // Otherwise the animations are messed up when we show them for the first time.
902            ((View) mAllAppsGrid).setVisibility(View.INVISIBLE);
903            mHomeCustomizationDrawer.setVisibility(View.INVISIBLE);
904        }
905
906        mWorkspace = (Workspace) dragLayer.findViewById(R.id.workspace);
907
908        final Workspace workspace = mWorkspace;
909        workspace.setHapticFeedbackEnabled(false);
910
911        DeleteZone deleteZone = (DeleteZone) dragLayer.findViewById(R.id.delete_zone);
912        mDeleteZone = deleteZone;
913
914        View handleView = findViewById(R.id.all_apps_button);
915        if (handleView != null && handleView instanceof HandleView) {
916            // we don't use handle view in xlarge mode
917            mHandleView = (HandleView)handleView;
918            mHandleView.setLauncher(this);
919            mHandleView.setOnClickListener(this);
920            mHandleView.setOnLongClickListener(this);
921        }
922
923        if (mCustomizePagedView != null) {
924            mCustomizePagedView.setLauncher(this);
925            mCustomizePagedView.setDragController(dragController);
926            mCustomizePagedView.update();
927        } else {
928             ImageView hotseatLeft = (ImageView) findViewById(R.id.hotseat_left);
929             hotseatLeft.setContentDescription(mHotseatLabels[0]);
930             hotseatLeft.setImageDrawable(mHotseatIcons[0]);
931             ImageView hotseatRight = (ImageView) findViewById(R.id.hotseat_right);
932             hotseatRight.setContentDescription(mHotseatLabels[1]);
933             hotseatRight.setImageDrawable(mHotseatIcons[1]);
934
935             mPreviousView = (ImageView) dragLayer.findViewById(R.id.previous_screen);
936             mNextView = (ImageView) dragLayer.findViewById(R.id.next_screen);
937
938             Drawable previous = mPreviousView.getDrawable();
939             Drawable next = mNextView.getDrawable();
940             mWorkspace.setIndicators(previous, next);
941
942             mPreviousView.setHapticFeedbackEnabled(false);
943             mPreviousView.setOnLongClickListener(this);
944             mNextView.setHapticFeedbackEnabled(false);
945             mNextView.setOnLongClickListener(this);
946        }
947
948        workspace.setOnLongClickListener(this);
949        workspace.setDragController(dragController);
950        workspace.setLauncher(this);
951
952        deleteZone.setLauncher(this);
953        deleteZone.setDragController(dragController);
954        int deleteZoneHandleId;
955        if (LauncherApplication.isScreenXLarge()) {
956            deleteZoneHandleId = R.id.all_apps_button;
957        } else {
958            deleteZoneHandleId = R.id.all_apps_button_cluster;
959        }
960        deleteZone.setHandle(findViewById(deleteZoneHandleId));
961        dragController.addDragListener(deleteZone);
962
963        DeleteZone allAppsDeleteZone = (DeleteZone) findViewById(R.id.all_apps_delete_zone);
964        if (allAppsDeleteZone != null) {
965            allAppsDeleteZone.setLauncher(this);
966            allAppsDeleteZone.setDragController(dragController);
967            allAppsDeleteZone.setDragAndDropEnabled(false);
968            dragController.addDragListener(allAppsDeleteZone);
969            dragController.addDropTarget(allAppsDeleteZone);
970        }
971
972        ApplicationInfoDropTarget allAppsInfoTarget = (ApplicationInfoDropTarget)
973                findViewById(R.id.all_apps_info_target);
974        if (allAppsInfoTarget != null) {
975            allAppsInfoTarget.setLauncher(this);
976            dragController.addDragListener(allAppsInfoTarget);
977            allAppsInfoTarget.setDragColor(getResources().getColor(R.color.app_info_filter));
978            allAppsInfoTarget.setDragAndDropEnabled(false);
979            View marketButton = findViewById(R.id.market_button);
980            if (marketButton != null) {
981                allAppsInfoTarget.setHandle(marketButton);
982            }
983        }
984
985        ApplicationInfoDropTarget infoButton = (ApplicationInfoDropTarget)findViewById(R.id.info_button);
986        if (infoButton != null) {
987            infoButton.setLauncher(this);
988            infoButton.setHandle(findViewById(R.id.configure_button));
989            infoButton.setDragColor(getResources().getColor(R.color.app_info_filter));
990            dragController.addDragListener(infoButton);
991        }
992
993        dragController.setDragScoller(workspace);
994        dragController.setScrollView(dragLayer);
995        dragController.setMoveTarget(workspace);
996
997        // The order here is bottom to top.
998        dragController.addDropTarget(workspace);
999        dragController.addDropTarget(deleteZone);
1000        if (infoButton != null) {
1001            dragController.addDropTarget(infoButton);
1002        }
1003        if (allAppsInfoTarget != null) {
1004            dragController.addDropTarget(allAppsInfoTarget);
1005        }
1006        if (allAppsDeleteZone != null) {
1007            dragController.addDropTarget(allAppsDeleteZone);
1008        }
1009    }
1010
1011    @SuppressWarnings({"UnusedDeclaration"})
1012    public void previousScreen(View v) {
1013        if (mState != State.ALL_APPS) {
1014            mWorkspace.scrollLeft();
1015        }
1016    }
1017
1018    @SuppressWarnings({"UnusedDeclaration"})
1019    public void nextScreen(View v) {
1020        if (mState != State.ALL_APPS) {
1021            mWorkspace.scrollRight();
1022        }
1023    }
1024
1025    @SuppressWarnings({"UnusedDeclaration"})
1026    public void launchHotSeat(View v) {
1027        if (mState == State.ALL_APPS) return;
1028
1029        int index = -1;
1030        if (v.getId() == R.id.hotseat_left) {
1031            index = 0;
1032        } else if (v.getId() == R.id.hotseat_right) {
1033            index = 1;
1034        }
1035
1036        // reload these every tap; you never know when they might change
1037        loadHotseats();
1038        if (index >= 0 && index < mHotseats.length && mHotseats[index] != null) {
1039            Intent intent = mHotseats[index];
1040            startActivitySafely(
1041                mHotseats[index],
1042                "hotseat"
1043            );
1044        }
1045    }
1046
1047    /**
1048     * Creates a view representing a shortcut.
1049     *
1050     * @param info The data structure describing the shortcut.
1051     *
1052     * @return A View inflated from R.layout.application.
1053     */
1054    View createShortcut(ShortcutInfo info) {
1055        return createShortcut(R.layout.application,
1056                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentPage()), info);
1057    }
1058
1059    /**
1060     * Creates a view representing a shortcut inflated from the specified resource.
1061     *
1062     * @param layoutResId The id of the XML layout used to create the shortcut.
1063     * @param parent The group the shortcut belongs to.
1064     * @param info The data structure describing the shortcut.
1065     *
1066     * @return A View inflated from layoutResId.
1067     */
1068    View createShortcut(int layoutResId, ViewGroup parent, ShortcutInfo info) {
1069        BubbleTextView favorite = (BubbleTextView) mInflater.inflate(layoutResId, parent, false);
1070        favorite.applyFromShortcutInfo(info, mIconCache);
1071        favorite.setOnClickListener(this);
1072        return favorite;
1073    }
1074
1075    /**
1076     * Add an application shortcut to the workspace.
1077     *
1078     * @param data The intent describing the application.
1079     * @param cellInfo The position on screen where to create the shortcut.
1080     */
1081    void completeAddApplication(Context context, Intent data, int screen,
1082            int intersectCellX, int intersectCellY) {
1083        final int[] cellXY = mTmpAddItemCellCoordinates;
1084        final CellLayout layout = (CellLayout) mWorkspace.getChildAt(screen);
1085
1086        if (!layout.findCellForSpanThatIntersects(cellXY, 1, 1, intersectCellX, intersectCellY)) {
1087            showOutOfSpaceMessage();
1088            return;
1089        }
1090
1091        final ShortcutInfo info = mModel.getShortcutInfo(context.getPackageManager(),
1092                data, context);
1093
1094        if (info != null) {
1095            info.setActivity(data.getComponent(), Intent.FLAG_ACTIVITY_NEW_TASK |
1096                    Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
1097            info.container = ItemInfo.NO_ID;
1098            mWorkspace.addApplicationShortcut(info, screen, cellXY[0], cellXY[1],
1099                    isWorkspaceLocked(), mAddIntersectCellX, mAddIntersectCellY);
1100        } else {
1101            Log.e(TAG, "Couldn't find ActivityInfo for selected application: " + data);
1102        }
1103    }
1104
1105    /**
1106     * Add a shortcut to the workspace.
1107     *
1108     * @param data The intent describing the shortcut.
1109     * @param cellInfo The position on screen where to create the shortcut.
1110     */
1111    private void completeAddShortcut(Intent data, int screen,
1112            int intersectCellX, int intersectCellY) {
1113        final int[] cellXY = mTmpAddItemCellCoordinates;
1114        final CellLayout layout = (CellLayout) mWorkspace.getChildAt(screen);
1115
1116        int[] touchXY = null;
1117        if (mAddDropPosition != null && mAddDropPosition[0] > -1 && mAddDropPosition[1] > -1) {
1118            touchXY = mAddDropPosition;
1119        }
1120        boolean foundCellSpan = false;
1121        if (touchXY != null) {
1122            // when dragging and dropping, just find the closest free spot
1123            CellLayout screenLayout = (CellLayout) mWorkspace.getChildAt(screen);
1124            int[] result = screenLayout.findNearestVacantArea(
1125                    touchXY[0], touchXY[1], 1, 1, cellXY);
1126            foundCellSpan = (result != null);
1127        } else {
1128            foundCellSpan = layout.findCellForSpanThatIntersects(
1129                    cellXY, 1, 1, intersectCellX, intersectCellY);
1130        }
1131
1132        if (!foundCellSpan) {
1133            showOutOfSpaceMessage();
1134            return;
1135        }
1136
1137        final ShortcutInfo info = mModel.addShortcut(
1138                this, data, screen, cellXY[0], cellXY[1], false);
1139
1140        if (!mRestoring) {
1141            final View view = createShortcut(info);
1142            mWorkspace.addInScreen(view, screen, cellXY[0], cellXY[1], 1, 1, isWorkspaceLocked());
1143        }
1144    }
1145
1146    /**
1147     * Add a widget to the workspace.
1148     *
1149     * @param appWidgetId The app widget id
1150     * @param cellInfo The position on screen where to create the widget.
1151     */
1152    private void completeAddAppWidget(int appWidgetId, int screen) {
1153        AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
1154
1155        // Calculate the grid spans needed to fit this widget
1156        CellLayout layout = (CellLayout) mWorkspace.getChildAt(screen);
1157        int[] spanXY = layout.rectToCell(appWidgetInfo.minWidth, appWidgetInfo.minHeight, null);
1158
1159        // Try finding open space on Launcher screen
1160        // We have saved the position to which the widget was dragged-- this really only matters
1161        // if we are placing widgets on a "spring-loaded" screen
1162        final int[] cellXY = mTmpAddItemCellCoordinates;
1163
1164        // For now, we don't save the coordinate where we dropped the icon because we're not
1165        // supporting spring-loaded mini-screens; however, leaving the ability to directly place
1166        // a widget on the home screen in case we want to add it in the future
1167        int[] touchXY = null;
1168        if (mAddDropPosition != null && mAddDropPosition[0] > -1 && mAddDropPosition[1] > -1) {
1169            touchXY = mAddDropPosition;
1170        }
1171        boolean foundCellSpan = false;
1172        if (touchXY != null) {
1173            // when dragging and dropping, just find the closest free spot
1174            CellLayout screenLayout = (CellLayout) mWorkspace.getChildAt(screen);
1175            int[] result = screenLayout.findNearestVacantArea(
1176                    touchXY[0], touchXY[1], spanXY[0], spanXY[1], cellXY);
1177            foundCellSpan = (result != null);
1178        } else {
1179            // if we long pressed on an empty cell to bring up a menu,
1180            // make sure we intersect the empty cell
1181            // if mAddIntersectCellX/Y are -1 (e.g. we used menu -> add) then
1182            // findCellForSpanThatIntersects will just ignore them
1183            foundCellSpan = layout.findCellForSpanThatIntersects(cellXY, spanXY[0], spanXY[1],
1184                    mAddIntersectCellX, mAddIntersectCellY);
1185        }
1186
1187        if (!foundCellSpan) {
1188            if (appWidgetId != -1) mAppWidgetHost.deleteAppWidgetId(appWidgetId);
1189            showOutOfSpaceMessage();
1190            return;
1191        }
1192
1193        // Build Launcher-specific widget info and save to database
1194        LauncherAppWidgetInfo launcherInfo = new LauncherAppWidgetInfo(appWidgetId);
1195        launcherInfo.spanX = spanXY[0];
1196        launcherInfo.spanY = spanXY[1];
1197
1198        LauncherModel.addItemToDatabase(this, launcherInfo,
1199                LauncherSettings.Favorites.CONTAINER_DESKTOP,
1200                screen, cellXY[0], cellXY[1], false);
1201
1202        if (!mRestoring) {
1203            mDesktopItems.add(launcherInfo);
1204
1205            // Perform actual inflation because we're live
1206            launcherInfo.hostView = mAppWidgetHost.createView(this, appWidgetId, appWidgetInfo);
1207
1208            launcherInfo.hostView.setAppWidget(appWidgetId, appWidgetInfo);
1209            launcherInfo.hostView.setTag(launcherInfo);
1210
1211            mWorkspace.addInScreen(launcherInfo.hostView, screen, cellXY[0], cellXY[1],
1212                    launcherInfo.spanX, launcherInfo.spanY, isWorkspaceLocked());
1213
1214            addWidgetToAutoAdvanceIfNeeded(launcherInfo.hostView, appWidgetInfo);
1215        }
1216    }
1217
1218    private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
1219        @Override
1220        public void onReceive(Context context, Intent intent) {
1221            final String action = intent.getAction();
1222            if (Intent.ACTION_SCREEN_OFF.equals(action)) {
1223                mUserPresent = false;
1224                updateRunning();
1225            } else if (Intent.ACTION_USER_PRESENT.equals(action)) {
1226                mUserPresent = true;
1227                updateRunning();
1228            }
1229        }
1230    };
1231
1232    @Override
1233    public void onAttachedToWindow() {
1234        super.onAttachedToWindow();
1235
1236        // Listen for broadcasts related to user-presence
1237        final IntentFilter filter = new IntentFilter();
1238        filter.addAction(Intent.ACTION_SCREEN_OFF);
1239        filter.addAction(Intent.ACTION_USER_PRESENT);
1240        registerReceiver(mReceiver, filter);
1241
1242        mAttached = true;
1243        mVisible = true;
1244    }
1245
1246    @Override
1247    public void onDetachedFromWindow() {
1248        super.onDetachedFromWindow();
1249        mVisible = false;
1250
1251        if (mAttached) {
1252            unregisterReceiver(mReceiver);
1253            mAttached = false;
1254        }
1255        updateRunning();
1256    }
1257
1258    public void onWindowVisibilityChanged(int visibility) {
1259        mVisible = visibility == View.VISIBLE;
1260        updateRunning();
1261    }
1262
1263    private void sendAdvanceMessage(long delay) {
1264        mHandler.removeMessages(ADVANCE_MSG);
1265        Message msg = mHandler.obtainMessage(ADVANCE_MSG);
1266        mHandler.sendMessageDelayed(msg, delay);
1267        mAutoAdvanceSentTime = System.currentTimeMillis();
1268    }
1269
1270    private void updateRunning() {
1271        boolean autoAdvanceRunning = mVisible && mUserPresent && !mWidgetsToAdvance.isEmpty();
1272        if (autoAdvanceRunning != mAutoAdvanceRunning) {
1273            mAutoAdvanceRunning = autoAdvanceRunning;
1274            if (autoAdvanceRunning) {
1275                long delay = mAutoAdvanceTimeLeft == -1 ? mAdvanceInterval : mAutoAdvanceTimeLeft;
1276                sendAdvanceMessage(delay);
1277            } else {
1278                if (!mWidgetsToAdvance.isEmpty()) {
1279                    mAutoAdvanceTimeLeft = Math.max(0, mAdvanceInterval -
1280                            (System.currentTimeMillis() - mAutoAdvanceSentTime));
1281                }
1282                mHandler.removeMessages(ADVANCE_MSG);
1283            }
1284        }
1285    }
1286
1287    private final Handler mHandler = new Handler() {
1288        @Override
1289        public void handleMessage(Message msg) {
1290            if (msg.what == ADVANCE_MSG) {
1291                int i = 0;
1292                for (View key: mWidgetsToAdvance.keySet()) {
1293                    final View v = key.findViewById(mWidgetsToAdvance.get(key).autoAdvanceViewId);
1294                    final int delay = mAdvanceStagger * i;
1295                    if (v instanceof Advanceable) {
1296                       postDelayed(new Runnable() {
1297                           public void run() {
1298                               ((Advanceable) v).advance();
1299                           }
1300                       }, delay);
1301                    }
1302                    i++;
1303                }
1304                sendAdvanceMessage(mAdvanceInterval);
1305            }
1306        }
1307    };
1308
1309    void addWidgetToAutoAdvanceIfNeeded(View hostView, AppWidgetProviderInfo appWidgetInfo) {
1310        if (appWidgetInfo.autoAdvanceViewId == -1) return;
1311        View v = hostView.findViewById(appWidgetInfo.autoAdvanceViewId);
1312        if (v instanceof Advanceable) {
1313            mWidgetsToAdvance.put(hostView, appWidgetInfo);
1314            ((Advanceable) v).willBeAdvancedByHost();
1315            updateRunning();
1316        }
1317    }
1318
1319    void removeWidgetToAutoAdvance(View hostView) {
1320        if (mWidgetsToAdvance.containsKey(hostView)) {
1321            mWidgetsToAdvance.remove(hostView);
1322            updateRunning();
1323        }
1324    }
1325
1326    public void removeAppWidget(LauncherAppWidgetInfo launcherInfo) {
1327        mDesktopItems.remove(launcherInfo);
1328        removeWidgetToAutoAdvance(launcherInfo.hostView);
1329        launcherInfo.hostView = null;
1330    }
1331
1332    void showOutOfSpaceMessage() {
1333        Toast.makeText(this, getString(R.string.out_of_space), Toast.LENGTH_SHORT).show();
1334    }
1335
1336    public LauncherAppWidgetHost getAppWidgetHost() {
1337        return mAppWidgetHost;
1338    }
1339
1340    public LauncherModel getModel() {
1341        return mModel;
1342    }
1343
1344    void closeSystemDialogs() {
1345        getWindow().closeAllPanels();
1346
1347        try {
1348            dismissDialog(DIALOG_CREATE_SHORTCUT);
1349            // Unlock the workspace if the dialog was showing
1350        } catch (Exception e) {
1351            // An exception is thrown if the dialog is not visible, which is fine
1352        }
1353
1354        try {
1355            dismissDialog(DIALOG_RENAME_FOLDER);
1356            // Unlock the workspace if the dialog was showing
1357        } catch (Exception e) {
1358            // An exception is thrown if the dialog is not visible, which is fine
1359        }
1360
1361        // Whatever we were doing is hereby canceled.
1362        mWaitingForResult = false;
1363    }
1364
1365    @Override
1366    protected void onNewIntent(Intent intent) {
1367        super.onNewIntent(intent);
1368
1369        // Close the menu
1370        if (Intent.ACTION_MAIN.equals(intent.getAction())) {
1371            // also will cancel mWaitingForResult.
1372            closeSystemDialogs();
1373
1374            boolean alreadyOnHome = ((intent.getFlags() & Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT)
1375                        != Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT);
1376
1377            // in all these cases, only animate if we're already on home
1378            if (LauncherApplication.isScreenXLarge()) {
1379                mWorkspace.unshrink(alreadyOnHome);
1380            }
1381            if (!mWorkspace.isDefaultPageShowing()) {
1382                // on the phone, we don't animate the change to the workspace if all apps is visible
1383                mWorkspace.moveToDefaultScreen(alreadyOnHome &&
1384                        (LauncherApplication.isScreenXLarge() || mState != State.ALL_APPS));
1385            }
1386            showWorkspace(alreadyOnHome);
1387
1388            final View v = getWindow().peekDecorView();
1389            if (v != null && v.getWindowToken() != null) {
1390                InputMethodManager imm = (InputMethodManager)getSystemService(
1391                        INPUT_METHOD_SERVICE);
1392                imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
1393            }
1394        }
1395    }
1396
1397    @Override
1398    protected void onRestoreInstanceState(Bundle savedInstanceState) {
1399        // Do not call super here
1400        mSavedInstanceState = savedInstanceState;
1401
1402        // Restore the current AllApps drawer tab
1403        if (mAllAppsGrid != null && mAllAppsGrid instanceof AllAppsTabbed) {
1404            String cur = savedInstanceState.getString("allapps_currentTab");
1405            if (cur != null) {
1406                AllAppsTabbed tabhost = (AllAppsTabbed) mAllAppsGrid;
1407                tabhost.setCurrentTabByTag(cur);
1408            }
1409        }
1410
1411        // Restore the current customization drawer tab
1412        if (mHomeCustomizationDrawer != null) {
1413            String cur = savedInstanceState.getString("customize_currentTab");
1414            if (cur != null) {
1415                mHomeCustomizationDrawer.setCurrentTabByTag(cur);
1416            }
1417        }
1418    }
1419
1420    @Override
1421    protected void onSaveInstanceState(Bundle outState) {
1422        outState.putInt(RUNTIME_STATE_CURRENT_SCREEN, mWorkspace.getCurrentPage());
1423
1424        final ArrayList<Folder> folders = mWorkspace.getOpenFolders();
1425        if (folders.size() > 0) {
1426            final int count = folders.size();
1427            long[] ids = new long[count];
1428            for (int i = 0; i < count; i++) {
1429                final FolderInfo info = folders.get(i).getInfo();
1430                ids[i] = info.id;
1431            }
1432            outState.putLongArray(RUNTIME_STATE_USER_FOLDERS, ids);
1433        } else {
1434            super.onSaveInstanceState(outState);
1435        }
1436
1437        outState.putInt(RUNTIME_STATE, mState.ordinal());
1438
1439        if (mAddScreen > -1 && mWaitingForResult) {
1440            outState.putInt(RUNTIME_STATE_PENDING_ADD_SCREEN, mAddScreen);
1441            outState.putInt(RUNTIME_STATE_PENDING_ADD_CELL_X, mAddIntersectCellX);
1442            outState.putInt(RUNTIME_STATE_PENDING_ADD_CELL_Y, mAddIntersectCellY);
1443        }
1444
1445        if (mFolderInfo != null && mWaitingForResult) {
1446            outState.putBoolean(RUNTIME_STATE_PENDING_FOLDER_RENAME, true);
1447            outState.putLong(RUNTIME_STATE_PENDING_FOLDER_RENAME_ID, mFolderInfo.id);
1448        }
1449
1450        // Save the current AllApps drawer tab
1451        if (mAllAppsGrid != null && mAllAppsGrid instanceof AllAppsTabbed) {
1452            AllAppsTabbed tabhost = (AllAppsTabbed) mAllAppsGrid;
1453            String currentTabTag = tabhost.getCurrentTabTag();
1454            if (currentTabTag != null) {
1455                outState.putString("allapps_currentTab", currentTabTag);
1456            }
1457        }
1458
1459        // Save the current customization drawer tab
1460        if (mHomeCustomizationDrawer != null) {
1461            String currentTabTag = mHomeCustomizationDrawer.getCurrentTabTag();
1462            if (currentTabTag != null) {
1463                outState.putString("customize_currentTab", currentTabTag);
1464            }
1465        }
1466    }
1467
1468    @Override
1469    public void onDestroy() {
1470        super.onDestroy();
1471
1472        try {
1473            mAppWidgetHost.stopListening();
1474        } catch (NullPointerException ex) {
1475            Log.w(TAG, "problem while stopping AppWidgetHost during Launcher destruction", ex);
1476        }
1477
1478        TextKeyListener.getInstance().release();
1479
1480        mModel.stopLoader();
1481
1482        unbindDesktopItems();
1483
1484        getContentResolver().unregisterContentObserver(mWidgetObserver);
1485
1486        // Some launcher layouts don't have a previous and next view
1487        if (mPreviousView != null) {
1488            dismissPreview(mPreviousView);
1489        }
1490        if (mNextView != null) {
1491            dismissPreview(mNextView);
1492        }
1493
1494        unregisterReceiver(mCloseSystemDialogsReceiver);
1495    }
1496
1497    @Override
1498    public void startActivityForResult(Intent intent, int requestCode) {
1499        if (requestCode >= 0) mWaitingForResult = true;
1500        super.startActivityForResult(intent, requestCode);
1501    }
1502
1503    @Override
1504    public void startSearch(String initialQuery, boolean selectInitialQuery,
1505            Bundle appSearchData, boolean globalSearch) {
1506
1507        showWorkspace(true);
1508
1509        if (initialQuery == null) {
1510            // Use any text typed in the launcher as the initial query
1511            initialQuery = getTypedText();
1512            clearTypedText();
1513        }
1514        if (appSearchData == null) {
1515            appSearchData = new Bundle();
1516            appSearchData.putString(Search.SOURCE, "launcher-search");
1517        }
1518
1519        final SearchManager searchManager =
1520                (SearchManager) getSystemService(Context.SEARCH_SERVICE);
1521        searchManager.startSearch(initialQuery, selectInitialQuery, getComponentName(),
1522            appSearchData, globalSearch);
1523    }
1524
1525    @Override
1526    public boolean onCreateOptionsMenu(Menu menu) {
1527        if (isWorkspaceLocked()) {
1528            return false;
1529        }
1530
1531        super.onCreateOptionsMenu(menu);
1532
1533        menu.add(MENU_GROUP_ADD, MENU_ADD, 0, R.string.menu_add)
1534                .setIcon(android.R.drawable.ic_menu_add)
1535                .setAlphabeticShortcut('A');
1536        menu.add(0, MENU_MANAGE_APPS, 0, R.string.menu_manage_apps)
1537                .setIcon(android.R.drawable.ic_menu_manage)
1538                .setAlphabeticShortcut('M');
1539        menu.add(MENU_GROUP_WALLPAPER, MENU_WALLPAPER_SETTINGS, 0, R.string.menu_wallpaper)
1540                 .setIcon(android.R.drawable.ic_menu_gallery)
1541                 .setAlphabeticShortcut('W');
1542        menu.add(0, MENU_SEARCH, 0, R.string.menu_search)
1543                .setIcon(android.R.drawable.ic_search_category_default)
1544                .setAlphabeticShortcut(SearchManager.MENU_KEY);
1545        menu.add(0, MENU_NOTIFICATIONS, 0, R.string.menu_notifications)
1546                .setIcon(com.android.internal.R.drawable.ic_menu_notifications)
1547                .setAlphabeticShortcut('N');
1548
1549        final Intent settings = new Intent(android.provider.Settings.ACTION_SETTINGS);
1550        settings.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
1551                Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
1552
1553        menu.add(0, MENU_SETTINGS, 0, R.string.menu_settings)
1554                .setIcon(android.R.drawable.ic_menu_preferences).setAlphabeticShortcut('P')
1555                .setIntent(settings);
1556
1557        return true;
1558    }
1559
1560    @Override
1561    public boolean onPrepareOptionsMenu(Menu menu) {
1562        super.onPrepareOptionsMenu(menu);
1563
1564        // If all apps is animating, don't show the menu, because we don't know
1565        // which one to show.
1566        if (mAllAppsGrid.isAnimating()) {
1567            return false;
1568        }
1569
1570        // Only show the add and wallpaper options when we're not in all apps.
1571        boolean visible = !mAllAppsGrid.isVisible();
1572        menu.setGroupVisible(MENU_GROUP_ADD, visible);
1573        menu.setGroupVisible(MENU_GROUP_WALLPAPER, visible);
1574
1575        // Disable add if the workspace is full.
1576        if (visible) {
1577            CellLayout layout = (CellLayout) mWorkspace.getChildAt(mWorkspace.getCurrentPage());
1578            menu.setGroupEnabled(MENU_GROUP_ADD, layout.existsEmptyCell());
1579        }
1580
1581        return true;
1582    }
1583
1584    @Override
1585    public boolean onOptionsItemSelected(MenuItem item) {
1586        switch (item.getItemId()) {
1587            case MENU_ADD:
1588                addItems();
1589                return true;
1590            case MENU_MANAGE_APPS:
1591                manageApps();
1592                return true;
1593            case MENU_WALLPAPER_SETTINGS:
1594                startWallpaper();
1595                return true;
1596            case MENU_SEARCH:
1597                onSearchRequested();
1598                return true;
1599            case MENU_NOTIFICATIONS:
1600                showNotifications();
1601                return true;
1602        }
1603
1604        return super.onOptionsItemSelected(item);
1605    }
1606
1607    /**
1608     * Indicates that we want global search for this activity by setting the globalSearch
1609     * argument for {@link #startSearch} to true.
1610     */
1611
1612    @Override
1613    public boolean onSearchRequested() {
1614        startSearch(null, false, null, true);
1615        return true;
1616    }
1617
1618    public boolean isWorkspaceLocked() {
1619        return mWorkspaceLoading || mWaitingForResult;
1620    }
1621
1622    private void addItems() {
1623        if (LauncherApplication.isScreenXLarge()) {
1624            // Animate the widget chooser up from the bottom of the screen
1625            if (mState != State.CUSTOMIZE) {
1626                showCustomizationDrawer(true);
1627            }
1628        } else {
1629            showWorkspace(true);
1630            showAddDialog(-1, -1);
1631        }
1632    }
1633
1634    private void resetAddInfo() {
1635        mAddScreen = -1;
1636        mAddIntersectCellX = -1;
1637        mAddIntersectCellY = -1;
1638        mAddDropPosition = null;
1639    }
1640
1641    void addAppWidgetFromDrop(PendingAddWidgetInfo info, int screen, int[] position) {
1642        resetAddInfo();
1643        mAddScreen = screen;
1644        mAddDropPosition = position;
1645
1646        int appWidgetId = getAppWidgetHost().allocateAppWidgetId();
1647        AppWidgetManager.getInstance(this).bindAppWidgetId(appWidgetId, info.componentName);
1648        addAppWidgetImpl(appWidgetId, info);
1649    }
1650
1651    private void manageApps() {
1652        startActivity(new Intent(android.provider.Settings.ACTION_MANAGE_ALL_APPLICATIONS_SETTINGS));
1653    }
1654
1655    void addAppWidgetFromPick(Intent data) {
1656        // TODO: catch bad widget exception when sent
1657        int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
1658        // TODO: Is this log message meaningful?
1659        if (LOGD) Log.d(TAG, "dumping extras content=" + data.getExtras());
1660        addAppWidgetImpl(appWidgetId, null);
1661    }
1662
1663    void addAppWidgetImpl(int appWidgetId, PendingAddWidgetInfo info) {
1664        AppWidgetProviderInfo appWidget = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
1665
1666        if (appWidget.configure != null) {
1667            // Launch over to configure widget, if needed
1668            Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_CONFIGURE);
1669            intent.setComponent(appWidget.configure);
1670            intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
1671            if (info != null) {
1672                if (info.mimeType != null && !info.mimeType.isEmpty()) {
1673                    intent.putExtra(
1674                            InstallWidgetReceiver.EXTRA_APPWIDGET_CONFIGURATION_DATA_MIME_TYPE,
1675                            info.mimeType);
1676
1677                    final String mimeType = info.mimeType;
1678                    final ClipData clipData = (ClipData) info.configurationData;
1679                    final ClipDescription clipDesc = clipData.getDescription();
1680                    for (int i = 0; i < clipDesc.getMimeTypeCount(); ++i) {
1681                        if (clipDesc.getMimeType(i).equals(mimeType)) {
1682                            final ClipData.Item item = clipData.getItem(i);
1683                            final CharSequence stringData = item.getText();
1684                            final Uri uriData = item.getUri();
1685                            final Intent intentData = item.getIntent();
1686                            final String key =
1687                                InstallWidgetReceiver.EXTRA_APPWIDGET_CONFIGURATION_DATA;
1688                            if (uriData != null) {
1689                                intent.putExtra(key, uriData);
1690                            } else if (intentData != null) {
1691                                intent.putExtra(key, intentData);
1692                            } else if (stringData != null) {
1693                                intent.putExtra(key, stringData);
1694                            }
1695                            break;
1696                        }
1697                    }
1698                }
1699            }
1700
1701            startActivityForResultSafely(intent, REQUEST_CREATE_APPWIDGET);
1702        } else {
1703            // Otherwise just add it
1704            completeAddAppWidget(appWidgetId, mAddScreen);
1705        }
1706    }
1707
1708    void processShortcutFromDrop(ComponentName componentName, int screen, int[] position) {
1709        resetAddInfo();
1710        mAddScreen = screen;
1711        mAddDropPosition = position;
1712
1713        Intent createShortcutIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT);
1714        createShortcutIntent.setComponent(componentName);
1715        processShortcut(createShortcutIntent);
1716    }
1717
1718    void processShortcut(Intent intent) {
1719        // Handle case where user selected "Applications"
1720        String applicationName = getResources().getString(R.string.group_applications);
1721        String shortcutName = intent.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
1722
1723        if (applicationName != null && applicationName.equals(shortcutName)) {
1724            Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
1725            mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
1726
1727            Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
1728            pickIntent.putExtra(Intent.EXTRA_INTENT, mainIntent);
1729            pickIntent.putExtra(Intent.EXTRA_TITLE, getText(R.string.title_select_application));
1730            startActivityForResultSafely(pickIntent, REQUEST_PICK_APPLICATION);
1731        } else {
1732            startActivityForResultSafely(intent, REQUEST_CREATE_SHORTCUT);
1733        }
1734    }
1735
1736    void processWallpaper(Intent intent) {
1737        startActivityForResult(intent, REQUEST_PICK_WALLPAPER);
1738    }
1739
1740    void addLiveFolderFromDrop(ComponentName componentName, int screen, int[] position) {
1741        resetAddInfo();
1742        mAddScreen = screen;
1743        mAddDropPosition = position;
1744
1745        Intent createFolderIntent = new Intent(LiveFolders.ACTION_CREATE_LIVE_FOLDER);
1746        createFolderIntent.setComponent(componentName);
1747
1748        addLiveFolder(createFolderIntent);
1749    }
1750
1751    void addLiveFolder(Intent intent) { // YYY add screen intersect etc. parameters here
1752        // Handle case where user selected "Folder"
1753        String folderName = getResources().getString(R.string.group_folder);
1754        String shortcutName = intent.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
1755
1756        if (folderName != null && folderName.equals(shortcutName)) {
1757            addFolder(mAddScreen, mAddIntersectCellX, mAddIntersectCellY);
1758        } else {
1759            startActivityForResultSafely(intent, REQUEST_CREATE_LIVE_FOLDER);
1760        }
1761    }
1762
1763    void addFolder(int screen, int intersectCellX, int intersectCellY) {
1764        UserFolderInfo folderInfo = new UserFolderInfo();
1765        folderInfo.title = getText(R.string.folder_name);
1766
1767        final CellLayout layout = (CellLayout) mWorkspace.getChildAt(screen);
1768        final int[] cellXY = mTmpAddItemCellCoordinates;
1769        if (!layout.findCellForSpanThatIntersects(cellXY, 1, 1, intersectCellX, intersectCellY)) {
1770            showOutOfSpaceMessage();
1771            return;
1772        }
1773
1774        // Update the model
1775        LauncherModel.addItemToDatabase(this, folderInfo,
1776                LauncherSettings.Favorites.CONTAINER_DESKTOP,
1777                screen, cellXY[0], cellXY[1], false);
1778        sFolders.put(folderInfo.id, folderInfo);
1779
1780        // Create the view
1781        FolderIcon newFolder = FolderIcon.fromXml(R.layout.folder_icon, this,
1782                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentPage()),
1783                folderInfo, mIconCache);
1784        mWorkspace.addInScreen(newFolder, screen, cellXY[0], cellXY[1], 1, 1, isWorkspaceLocked());
1785    }
1786
1787    void removeFolder(FolderInfo folder) {
1788        sFolders.remove(folder.id);
1789    }
1790
1791    private void completeAddLiveFolder(
1792            Intent data, int screen, int intersectCellX, int intersectCellY) {
1793        final CellLayout layout = (CellLayout) mWorkspace.getChildAt(screen);
1794        final int[] cellXY = mTmpAddItemCellCoordinates;
1795        if (!layout.findCellForSpanThatIntersects(cellXY, 1, 1, intersectCellX, intersectCellY)) {
1796            showOutOfSpaceMessage();
1797            return;
1798        }
1799
1800        final LiveFolderInfo info = addLiveFolder(this, data, screen, cellXY[0], cellXY[1], false);
1801
1802        if (!mRestoring) {
1803            final View view = LiveFolderIcon.fromXml(R.layout.live_folder_icon, this,
1804                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentPage()), info);
1805            mWorkspace.addInScreen(view, screen, cellXY[0], cellXY[1], 1, 1, isWorkspaceLocked());
1806        }
1807    }
1808
1809    static LiveFolderInfo addLiveFolder(Context context, Intent data,
1810            int screen, int cellX, int cellY, boolean notify) {
1811
1812        Intent baseIntent = data.getParcelableExtra(LiveFolders.EXTRA_LIVE_FOLDER_BASE_INTENT);
1813        String name = data.getStringExtra(LiveFolders.EXTRA_LIVE_FOLDER_NAME);
1814
1815        Drawable icon = null;
1816        Intent.ShortcutIconResource iconResource = null;
1817
1818        Parcelable extra = data.getParcelableExtra(LiveFolders.EXTRA_LIVE_FOLDER_ICON);
1819        if (extra != null && extra instanceof Intent.ShortcutIconResource) {
1820            try {
1821                iconResource = (Intent.ShortcutIconResource) extra;
1822                final PackageManager packageManager = context.getPackageManager();
1823                Resources resources = packageManager.getResourcesForApplication(
1824                        iconResource.packageName);
1825                final int id = resources.getIdentifier(iconResource.resourceName, null, null);
1826                icon = resources.getDrawable(id);
1827            } catch (Exception e) {
1828                Log.w(TAG, "Could not load live folder icon: " + extra);
1829            }
1830        }
1831
1832        if (icon == null) {
1833            icon = context.getResources().getDrawable(R.drawable.ic_launcher_folder);
1834        }
1835
1836        final LiveFolderInfo info = new LiveFolderInfo();
1837        info.icon = Utilities.createIconBitmap(icon, context);
1838        info.title = name;
1839        info.iconResource = iconResource;
1840        info.uri = data.getData();
1841        info.baseIntent = baseIntent;
1842        info.displayMode = data.getIntExtra(LiveFolders.EXTRA_LIVE_FOLDER_DISPLAY_MODE,
1843                LiveFolders.DISPLAY_MODE_GRID);
1844
1845        LauncherModel.addItemToDatabase(context, info, LauncherSettings.Favorites.CONTAINER_DESKTOP,
1846                screen, cellX, cellY, notify);
1847        sFolders.put(info.id, info);
1848
1849        return info;
1850    }
1851
1852    private void showNotifications() {
1853        final StatusBarManager statusBar = (StatusBarManager) getSystemService(STATUS_BAR_SERVICE);
1854        if (statusBar != null) {
1855            statusBar.expand();
1856        }
1857    }
1858
1859    private void startWallpaper() {
1860        showWorkspace(true);
1861        final Intent pickWallpaper = new Intent(Intent.ACTION_SET_WALLPAPER);
1862        Intent chooser = Intent.createChooser(pickWallpaper,
1863                getText(R.string.chooser_wallpaper));
1864        // NOTE: Adds a configure option to the chooser if the wallpaper supports it
1865        //       Removed in Eclair MR1
1866//        WallpaperManager wm = (WallpaperManager)
1867//                getSystemService(Context.WALLPAPER_SERVICE);
1868//        WallpaperInfo wi = wm.getWallpaperInfo();
1869//        if (wi != null && wi.getSettingsActivity() != null) {
1870//            LabeledIntent li = new LabeledIntent(getPackageName(),
1871//                    R.string.configure_wallpaper, 0);
1872//            li.setClassName(wi.getPackageName(), wi.getSettingsActivity());
1873//            chooser.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Intent[] { li });
1874//        }
1875        startActivityForResult(chooser, REQUEST_PICK_WALLPAPER);
1876    }
1877
1878    /**
1879     * Registers various content observers. The current implementation registers
1880     * only a favorites observer to keep track of the favorites applications.
1881     */
1882    private void registerContentObservers() {
1883        ContentResolver resolver = getContentResolver();
1884        resolver.registerContentObserver(LauncherProvider.CONTENT_APPWIDGET_RESET_URI,
1885                true, mWidgetObserver);
1886    }
1887
1888    @Override
1889    public boolean dispatchKeyEvent(KeyEvent event) {
1890        if (event.getAction() == KeyEvent.ACTION_DOWN) {
1891            switch (event.getKeyCode()) {
1892                case KeyEvent.KEYCODE_HOME:
1893                    return true;
1894                case KeyEvent.KEYCODE_VOLUME_DOWN:
1895                    if (SystemProperties.getInt("debug.launcher2.dumpstate", 0) != 0) {
1896                        dumpState();
1897                        return true;
1898                    }
1899                    break;
1900            }
1901        } else if (event.getAction() == KeyEvent.ACTION_UP) {
1902            switch (event.getKeyCode()) {
1903                case KeyEvent.KEYCODE_HOME:
1904                    return true;
1905            }
1906        }
1907
1908        return super.dispatchKeyEvent(event);
1909    }
1910
1911    @Override
1912    public void onBackPressed() {
1913        if (mState == State.ALL_APPS || mState == State.CUSTOMIZE) {
1914            showWorkspace(true);
1915        } else {
1916            closeFolder();
1917        }
1918        // Some launcher layouts don't have a previous and next view
1919        if (mPreviousView != null) {
1920            dismissPreview(mPreviousView);
1921            dismissPreview(mNextView);
1922        }
1923    }
1924
1925    private void closeFolder() {
1926        Folder folder = mWorkspace.getOpenFolder();
1927        if (folder != null) {
1928            closeFolder(folder);
1929        }
1930    }
1931
1932    void closeFolder(Folder folder) {
1933        folder.getInfo().opened = false;
1934        ViewGroup parent = (ViewGroup) folder.getParent();
1935        if (parent != null) {
1936            CellLayout cl = (CellLayout) parent;
1937            cl.removeViewWithoutMarkingCells(folder);
1938            if (folder instanceof DropTarget) {
1939                // Live folders aren't DropTargets.
1940                mDragController.removeDropTarget((DropTarget)folder);
1941            }
1942        }
1943        folder.onClose();
1944    }
1945
1946    /**
1947     * Re-listen when widgets are reset.
1948     */
1949    private void onAppWidgetReset() {
1950        mAppWidgetHost.startListening();
1951    }
1952
1953    /**
1954     * Go through the and disconnect any of the callbacks in the drawables and the views or we
1955     * leak the previous Home screen on orientation change.
1956     */
1957    private void unbindDesktopItems() {
1958        for (ItemInfo item: mDesktopItems) {
1959            item.unbind();
1960        }
1961    }
1962
1963    /**
1964     * Launches the intent referred by the clicked shortcut.
1965     *
1966     * @param v The view representing the clicked shortcut.
1967     */
1968    public void onClick(View v) {
1969        Object tag = v.getTag();
1970        if (tag instanceof ShortcutInfo) {
1971            // Open shortcut
1972            final Intent intent = ((ShortcutInfo) tag).intent;
1973            int[] pos = new int[2];
1974            v.getLocationOnScreen(pos);
1975            intent.setSourceBounds(new Rect(pos[0], pos[1],
1976                    pos[0] + v.getWidth(), pos[1] + v.getHeight()));
1977            startActivitySafely(intent, tag);
1978        } else if (tag instanceof FolderInfo) {
1979            handleFolderClick((FolderInfo) tag);
1980        } else if (v == mHandleView) {
1981            if (mState == State.ALL_APPS) {
1982                showWorkspace(true);
1983            } else {
1984                showAllApps(true);
1985            }
1986        }
1987    }
1988
1989    public boolean onTouch(View v, MotionEvent event) {
1990        // this is an intercepted event being forwarded from mWorkspace;
1991        // clicking anywhere on the workspace causes the customization drawer to slide down
1992        showWorkspace(true);
1993        return false;
1994    }
1995
1996    /**
1997     * Event handler for the search button
1998     *
1999     * @param v The view that was clicked.
2000     */
2001    public void onClickSearchButton(View v) {
2002        startSearch(null, false, null, true);
2003        // Use a custom animation for launching search
2004        overridePendingTransition(R.anim.fade_in_fast, R.anim.fade_out_fast);
2005    }
2006
2007    /**
2008     * Event handler for the voice button
2009     *
2010     * @param v The view that was clicked.
2011     */
2012    public void onClickVoiceButton(View v) {
2013        startVoiceSearch();
2014    }
2015
2016    private void startVoiceSearch() {
2017        Intent intent = new Intent(RecognizerIntent.ACTION_WEB_SEARCH);
2018        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
2019        startActivity(intent);
2020    }
2021
2022    /**
2023     * Event handler for the "gear" button that appears on the home screen, which
2024     * enters home screen customization mode.
2025     *
2026     * @param v The view that was clicked.
2027     */
2028    public void onClickConfigureButton(View v) {
2029        addItems();
2030    }
2031
2032    /**
2033     * Event handler for the "grid" button that appears on the home screen, which
2034     * enters all apps mode.
2035     *
2036     * @param v The view that was clicked.
2037     */
2038    public void onClickAllAppsButton(View v) {
2039        showAllApps(true);
2040    }
2041
2042    public void onClickAppMarketButton(View v) {
2043        if (mAppMarketIntent != null) {
2044            startActivitySafely(mAppMarketIntent, "app market");
2045        }
2046    }
2047
2048    void startApplicationDetailsActivity(ComponentName componentName) {
2049        String packageName = componentName.getPackageName();
2050        Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS,
2051                Uri.fromParts("package", packageName, null));
2052        startActivity(intent);
2053    }
2054
2055    void startApplicationUninstallActivity(ApplicationInfo appInfo) {
2056        if ((appInfo.flags & ApplicationInfo.DOWNLOADED_FLAG) == 0) {
2057            // System applications cannot be installed. For now, show a toast explaining that.
2058            // We may give them the option of disabling apps this way.
2059            int messageId = R.string.uninstall_system_app_text;
2060            Toast.makeText(this, messageId, Toast.LENGTH_SHORT).show();
2061        } else {
2062            String packageName = appInfo.componentName.getPackageName();
2063            String className = appInfo.componentName.getClassName();
2064            Intent intent = new Intent(
2065                    Intent.ACTION_DELETE, Uri.fromParts("package", packageName, className));
2066            startActivity(intent);
2067        }
2068    }
2069
2070    void startActivitySafely(Intent intent, Object tag) {
2071        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
2072        try {
2073            startActivity(intent);
2074        } catch (ActivityNotFoundException e) {
2075            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
2076            Log.e(TAG, "Unable to launch. tag=" + tag + " intent=" + intent, e);
2077        } catch (SecurityException e) {
2078            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
2079            Log.e(TAG, "Launcher does not have the permission to launch " + intent +
2080                    ". Make sure to create a MAIN intent-filter for the corresponding activity " +
2081                    "or use the exported attribute for this activity. "
2082                    + "tag="+ tag + " intent=" + intent, e);
2083        }
2084    }
2085
2086    void startActivityForResultSafely(Intent intent, int requestCode) {
2087        try {
2088            startActivityForResult(intent, requestCode);
2089        } catch (ActivityNotFoundException e) {
2090            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
2091        } catch (SecurityException e) {
2092            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
2093            Log.e(TAG, "Launcher does not have the permission to launch " + intent +
2094                    ". Make sure to create a MAIN intent-filter for the corresponding activity " +
2095                    "or use the exported attribute for this activity.", e);
2096        }
2097    }
2098
2099    private void handleFolderClick(FolderInfo folderInfo) {
2100        if (!folderInfo.opened) {
2101            // Close any open folder
2102            closeFolder();
2103            // Open the requested folder
2104            openFolder(folderInfo);
2105        } else {
2106            // Find the open folder...
2107            Folder openFolder = mWorkspace.getFolderForTag(folderInfo);
2108            int folderScreen;
2109            if (openFolder != null) {
2110                folderScreen = mWorkspace.getPageForView(openFolder);
2111                // .. and close it
2112                closeFolder(openFolder);
2113                if (folderScreen != mWorkspace.getCurrentPage()) {
2114                    // Close any folder open on the current screen
2115                    closeFolder();
2116                    // Pull the folder onto this screen
2117                    openFolder(folderInfo);
2118                }
2119            }
2120        }
2121    }
2122
2123    /**
2124     * Opens the user folder described by the specified tag. The opening of the folder
2125     * is animated relative to the specified View. If the View is null, no animation
2126     * is played.
2127     *
2128     * @param folderInfo The FolderInfo describing the folder to open.
2129     */
2130    public void openFolder(FolderInfo folderInfo) {
2131        Folder openFolder;
2132
2133        if (folderInfo instanceof UserFolderInfo) {
2134            openFolder = UserFolder.fromXml(this);
2135        } else if (folderInfo instanceof LiveFolderInfo) {
2136            openFolder = com.android.launcher2.LiveFolder.fromXml(this, folderInfo);
2137        } else {
2138            return;
2139        }
2140
2141        openFolder.setDragController(mDragController);
2142        openFolder.setLauncher(this);
2143
2144        openFolder.bind(folderInfo);
2145        folderInfo.opened = true;
2146
2147        mWorkspace.addInFullScreen(openFolder, folderInfo.screen);
2148
2149        openFolder.onOpen();
2150    }
2151
2152    public boolean onLongClick(View v) {
2153        switch (v.getId()) {
2154            case R.id.previous_screen:
2155                if (mState != State.ALL_APPS) {
2156                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
2157                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
2158                    showPreviews(v);
2159                }
2160                return true;
2161            case R.id.next_screen:
2162                if (mState != State.ALL_APPS) {
2163                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
2164                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
2165                    showPreviews(v);
2166                }
2167                return true;
2168            case R.id.all_apps_button:
2169                if (mState != State.ALL_APPS) {
2170                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
2171                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
2172                    showPreviews(v);
2173                }
2174                return true;
2175        }
2176
2177        if (isWorkspaceLocked()) {
2178            return false;
2179        }
2180
2181        if (!(v instanceof CellLayout)) {
2182            v = (View) v.getParent();
2183        }
2184
2185
2186        resetAddInfo();
2187        CellLayout.CellInfo longClickCellInfo = (CellLayout.CellInfo) v.getTag();
2188        // This happens when long clicking an item with the dpad/trackball
2189        if (longClickCellInfo == null || !longClickCellInfo.valid) {
2190            return true;
2191        }
2192
2193        final View itemUnderLongClick = longClickCellInfo.cell;
2194
2195        if (mWorkspace.allowLongPress()) {
2196            if (itemUnderLongClick == null) {
2197                // User long pressed on empty space
2198                mWorkspace.setAllowLongPress(false);
2199                mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
2200                        HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
2201                if (!LauncherApplication.isScreenXLarge()) {
2202                    showAddDialog(longClickCellInfo.cellX, longClickCellInfo.cellY);
2203                }
2204            } else {
2205                if (!(itemUnderLongClick instanceof Folder)) {
2206                    // User long pressed on an item
2207                    mWorkspace.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS,
2208                            HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
2209                    mAddIntersectCellX = longClickCellInfo.cellX;
2210                    mAddIntersectCellY = longClickCellInfo.cellY;
2211                    mWorkspace.startDrag(longClickCellInfo);
2212                }
2213            }
2214        }
2215        return true;
2216    }
2217
2218    @SuppressWarnings({"unchecked"})
2219    private void dismissPreview(final View v) {
2220        final PopupWindow window = (PopupWindow) v.getTag();
2221        if (window != null) {
2222            window.setOnDismissListener(new PopupWindow.OnDismissListener() {
2223                public void onDismiss() {
2224                    ViewGroup group = (ViewGroup) v.getTag(R.id.workspace);
2225                    int count = group.getChildCount();
2226                    for (int i = 0; i < count; i++) {
2227                        ((ImageView) group.getChildAt(i)).setImageDrawable(null);
2228                    }
2229                    ArrayList<Bitmap> bitmaps = (ArrayList<Bitmap>) v.getTag(R.id.icon);
2230                    for (Bitmap bitmap : bitmaps) bitmap.recycle();
2231
2232                    v.setTag(R.id.workspace, null);
2233                    v.setTag(R.id.icon, null);
2234                    window.setOnDismissListener(null);
2235                }
2236            });
2237            window.dismiss();
2238        }
2239        v.setTag(null);
2240    }
2241
2242    private void showPreviews(View anchor) {
2243        showPreviews(anchor, 0, mWorkspace.getChildCount());
2244    }
2245
2246    private void showPreviews(final View anchor, int start, int end) {
2247        final Resources resources = getResources();
2248        final Workspace workspace = mWorkspace;
2249
2250        CellLayout cell = ((CellLayout) workspace.getChildAt(start));
2251
2252        float max = workspace.getChildCount();
2253
2254        final Rect r = new Rect();
2255        resources.getDrawable(R.drawable.preview_background).getPadding(r);
2256        int extraW = (int) ((r.left + r.right) * max);
2257        int extraH = r.top + r.bottom;
2258
2259        int aW = cell.getWidth() - extraW;
2260        float w = aW / max;
2261
2262        int width = cell.getWidth();
2263        int height = cell.getHeight();
2264        int x = cell.getLeftPadding();
2265        int y = cell.getTopPadding();
2266        width -= (x + cell.getRightPadding());
2267        height -= (y + cell.getBottomPadding());
2268
2269        float scale = w / width;
2270
2271        int count = end - start;
2272
2273        final float sWidth = width * scale;
2274        float sHeight = height * scale;
2275
2276        LinearLayout preview = new LinearLayout(this);
2277
2278        PreviewTouchHandler handler = new PreviewTouchHandler(anchor);
2279        ArrayList<Bitmap> bitmaps = new ArrayList<Bitmap>(count);
2280
2281        for (int i = start; i < end; i++) {
2282            ImageView image = new ImageView(this);
2283            cell = (CellLayout) workspace.getChildAt(i);
2284
2285            final Bitmap bitmap = Bitmap.createBitmap((int) sWidth, (int) sHeight,
2286                    Bitmap.Config.ARGB_8888);
2287
2288            final Canvas c = new Canvas(bitmap);
2289            c.scale(scale, scale);
2290            c.translate(-cell.getLeftPadding(), -cell.getTopPadding());
2291            cell.drawChildren(c);
2292
2293            image.setBackgroundDrawable(resources.getDrawable(R.drawable.preview_background));
2294            image.setImageBitmap(bitmap);
2295            image.setTag(i);
2296            image.setOnClickListener(handler);
2297            image.setOnFocusChangeListener(handler);
2298            image.setFocusable(true);
2299            if (i == mWorkspace.getCurrentPage()) image.requestFocus();
2300
2301            preview.addView(image,
2302                    LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
2303
2304            bitmaps.add(bitmap);
2305        }
2306
2307        final PopupWindow p = new PopupWindow(this);
2308        p.setContentView(preview);
2309        p.setWidth((int) (sWidth * count + extraW));
2310        p.setHeight((int) (sHeight + extraH));
2311        p.setAnimationStyle(R.style.AnimationPreview);
2312        p.setOutsideTouchable(true);
2313        p.setFocusable(true);
2314        p.setBackgroundDrawable(new ColorDrawable(0));
2315        p.showAsDropDown(anchor, 0, 0);
2316
2317        p.setOnDismissListener(new PopupWindow.OnDismissListener() {
2318            public void onDismiss() {
2319                dismissPreview(anchor);
2320            }
2321        });
2322
2323        anchor.setTag(p);
2324        anchor.setTag(R.id.workspace, preview);
2325        anchor.setTag(R.id.icon, bitmaps);
2326    }
2327
2328    class PreviewTouchHandler implements View.OnClickListener, Runnable, View.OnFocusChangeListener {
2329        private final View mAnchor;
2330
2331        public PreviewTouchHandler(View anchor) {
2332            mAnchor = anchor;
2333        }
2334
2335        public void onClick(View v) {
2336            mWorkspace.snapToPage((Integer) v.getTag());
2337            v.post(this);
2338        }
2339
2340        public void run() {
2341            dismissPreview(mAnchor);
2342        }
2343
2344        public void onFocusChange(View v, boolean hasFocus) {
2345            if (hasFocus) {
2346                mWorkspace.snapToPage((Integer) v.getTag());
2347            }
2348        }
2349    }
2350
2351    Workspace getWorkspace() {
2352        return mWorkspace;
2353    }
2354
2355    @Override
2356    protected Dialog onCreateDialog(int id) {
2357        switch (id) {
2358            case DIALOG_CREATE_SHORTCUT:
2359                return new CreateShortcut().createDialog();
2360            case DIALOG_RENAME_FOLDER:
2361                return new RenameFolder().createDialog();
2362        }
2363
2364        return super.onCreateDialog(id);
2365    }
2366
2367    @Override
2368    protected void onPrepareDialog(int id, Dialog dialog) {
2369        switch (id) {
2370            case DIALOG_CREATE_SHORTCUT:
2371                break;
2372            case DIALOG_RENAME_FOLDER:
2373                if (mFolderInfo != null) {
2374                    EditText input = (EditText) dialog.findViewById(R.id.folder_name);
2375                    final CharSequence text = mFolderInfo.title;
2376                    input.setText(text);
2377                    input.setSelection(0, text.length());
2378                }
2379                break;
2380        }
2381    }
2382
2383    void showRenameDialog(FolderInfo info) {
2384        mFolderInfo = info;
2385        mWaitingForResult = true;
2386        showDialog(DIALOG_RENAME_FOLDER);
2387    }
2388
2389    private void showAddDialog(int intersectX, int intersectY) {
2390        resetAddInfo();
2391        mAddIntersectCellX = intersectX;
2392        mAddIntersectCellY = intersectY;
2393        mAddScreen = mWorkspace.getCurrentPage();
2394        mWaitingForResult = true;
2395        showDialog(DIALOG_CREATE_SHORTCUT);
2396    }
2397
2398    private void pickShortcut() {
2399        // Insert extra item to handle picking application
2400        Bundle bundle = new Bundle();
2401
2402        ArrayList<String> shortcutNames = new ArrayList<String>();
2403        shortcutNames.add(getString(R.string.group_applications));
2404        bundle.putStringArrayList(Intent.EXTRA_SHORTCUT_NAME, shortcutNames);
2405
2406        ArrayList<ShortcutIconResource> shortcutIcons = new ArrayList<ShortcutIconResource>();
2407        shortcutIcons.add(ShortcutIconResource.fromContext(Launcher.this,
2408                        R.drawable.ic_launcher_application));
2409        bundle.putParcelableArrayList(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, shortcutIcons);
2410
2411        Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
2412        pickIntent.putExtra(Intent.EXTRA_INTENT, new Intent(Intent.ACTION_CREATE_SHORTCUT));
2413        pickIntent.putExtra(Intent.EXTRA_TITLE, getText(R.string.title_select_shortcut));
2414        pickIntent.putExtras(bundle);
2415
2416        startActivityForResult(pickIntent, REQUEST_PICK_SHORTCUT);
2417    }
2418
2419    private class RenameFolder {
2420        private EditText mInput;
2421
2422        Dialog createDialog() {
2423            final View layout = View.inflate(Launcher.this, R.layout.rename_folder, null);
2424            mInput = (EditText) layout.findViewById(R.id.folder_name);
2425
2426            AlertDialog.Builder builder = new AlertDialog.Builder(Launcher.this);
2427            builder.setIcon(0);
2428            builder.setTitle(getString(R.string.rename_folder_title));
2429            builder.setCancelable(true);
2430            builder.setOnCancelListener(new Dialog.OnCancelListener() {
2431                public void onCancel(DialogInterface dialog) {
2432                    cleanup();
2433                }
2434            });
2435            builder.setNegativeButton(getString(R.string.cancel_action),
2436                new Dialog.OnClickListener() {
2437                    public void onClick(DialogInterface dialog, int which) {
2438                        cleanup();
2439                    }
2440                }
2441            );
2442            builder.setPositiveButton(getString(R.string.rename_action),
2443                new Dialog.OnClickListener() {
2444                    public void onClick(DialogInterface dialog, int which) {
2445                        changeFolderName();
2446                    }
2447                }
2448            );
2449            builder.setView(layout);
2450
2451            final AlertDialog dialog = builder.create();
2452            dialog.setOnShowListener(new DialogInterface.OnShowListener() {
2453                public void onShow(DialogInterface dialog) {
2454                    mWaitingForResult = true;
2455                    mInput.requestFocus();
2456                    InputMethodManager inputManager = (InputMethodManager)
2457                            getSystemService(Context.INPUT_METHOD_SERVICE);
2458                    inputManager.showSoftInput(mInput, 0);
2459                }
2460            });
2461
2462            return dialog;
2463        }
2464
2465        private void changeFolderName() {
2466            final String name = mInput.getText().toString();
2467            if (!TextUtils.isEmpty(name)) {
2468                // Make sure we have the right folder info
2469                mFolderInfo = sFolders.get(mFolderInfo.id);
2470                mFolderInfo.title = name;
2471                LauncherModel.updateItemInDatabase(Launcher.this, mFolderInfo);
2472
2473                if (mWorkspaceLoading) {
2474                    lockAllApps();
2475                    mModel.startLoader(Launcher.this, false);
2476                } else {
2477                    final FolderIcon folderIcon = (FolderIcon)
2478                            mWorkspace.getViewForTag(mFolderInfo);
2479                    if (folderIcon != null) {
2480                        folderIcon.setText(name);
2481                        getWorkspace().requestLayout();
2482                    } else {
2483                        lockAllApps();
2484                        mWorkspaceLoading = true;
2485                        mModel.startLoader(Launcher.this, false);
2486                    }
2487                }
2488            }
2489            cleanup();
2490        }
2491
2492        private void cleanup() {
2493            dismissDialog(DIALOG_RENAME_FOLDER);
2494            mWaitingForResult = false;
2495            mFolderInfo = null;
2496        }
2497    }
2498
2499    // Now a part of LauncherModel.Callbacks. Used to reorder loading steps.
2500    public boolean isAllAppsVisible() {
2501        return mState == State.ALL_APPS;
2502    }
2503
2504    // AllAppsView.Watcher
2505    public void zoomed(float zoom) {
2506        // In XLarge view, we zoom down the workspace below all apps so it's still visible
2507        if (zoom == 1.0f && !LauncherApplication.isScreenXLarge()) {
2508            mWorkspace.setVisibility(View.GONE);
2509        }
2510    }
2511
2512    private void showToolbarButton(View button) {
2513        button.setAlpha(1.0f);
2514        button.setVisibility(View.VISIBLE);
2515        button.setFocusable(true);
2516        button.setClickable(true);
2517    }
2518
2519    private void hideToolbarButton(View button) {
2520        button.setAlpha(0.0f);
2521        // We can't set it to GONE, otherwise the RelativeLayout gets screwed up
2522        button.setVisibility(View.INVISIBLE);
2523        button.setFocusable(false);
2524        button.setClickable(false);
2525    }
2526
2527    /**
2528     * Helper function for showing or hiding a toolbar button, possibly animated.
2529     *
2530     * @param show If true, create an animation to the show the item. Otherwise, hide it.
2531     * @param view The toolbar button to be animated
2532     * @param seq A AnimatorSet that will be used to animate the transition. If null, the
2533     * transition will not be animated.
2534     */
2535    private void hideOrShowToolbarButton(boolean show, final View view, AnimatorSet seq) {
2536        final boolean showing = show;
2537        final boolean hiding = !show;
2538
2539        final int duration = show ?
2540                getResources().getInteger(R.integer.config_toolbarButtonFadeInTime) :
2541                getResources().getInteger(R.integer.config_toolbarButtonFadeOutTime);
2542
2543        if (seq != null) {
2544            Animator anim = ObjectAnimator.ofFloat(view, "alpha", show ? 1.0f : 0.0f);
2545            anim.setDuration(duration);
2546            anim.addListener(new LauncherAnimatorListenerAdapter() {
2547                @Override
2548                public void onAnimationStart(Animator animation) {
2549                    if (showing) showToolbarButton(view);
2550                }
2551                @Override
2552                public void onAnimationEndOrCancel(Animator animation) {
2553                    if (hiding) hideToolbarButton(view);
2554                }
2555            });
2556            seq.play(anim);
2557        } else {
2558            if (showing) {
2559                showToolbarButton(view);
2560            } else {
2561                hideToolbarButton(view);
2562            }
2563        }
2564    }
2565
2566    /**
2567     * Show/hide the appropriate toolbar buttons for newState.
2568     * If showSeq or hideSeq is null, the transition will be done immediately (not animated).
2569     *
2570     * @param newState The state that is being switched to
2571     * @param showSeq AnimatorSet in which to put "show" animations, or null.
2572     * @param hideSeq AnimatorSet in which to put "hide" animations, or null.
2573     */
2574    private void hideAndShowToolbarButtons(State newState, AnimatorSet showSeq, AnimatorSet hideSeq) {
2575        final View searchButton = findViewById(R.id.search_button_cluster);
2576        final View allAppsButton = findViewById(R.id.all_apps_button);
2577        final View configureButton = findViewById(R.id.configure_button);
2578
2579        switch (newState) {
2580        case WORKSPACE:
2581            hideOrShowToolbarButton(true, searchButton, showSeq);
2582            hideOrShowToolbarButton(true, allAppsButton, showSeq);
2583            hideOrShowToolbarButton(true, configureButton, showSeq);
2584            mDeleteZone.setHandle(allAppsButton);
2585            break;
2586        case ALL_APPS:
2587            hideOrShowToolbarButton(false, configureButton, hideSeq);
2588            hideOrShowToolbarButton(false, searchButton, hideSeq);
2589            hideOrShowToolbarButton(false, allAppsButton, hideSeq);
2590            break;
2591        case CUSTOMIZE:
2592            hideOrShowToolbarButton(false, allAppsButton, hideSeq);
2593            hideOrShowToolbarButton(false, searchButton, hideSeq);
2594            hideOrShowToolbarButton(false, configureButton, hideSeq);
2595            mDeleteZone.setHandle(allAppsButton);
2596            break;
2597        }
2598    }
2599
2600    /**
2601     * Helper method for the cameraZoomIn/cameraZoomOut animations
2602     * @param view The view being animated
2603     * @param state The state that we are moving in or out of -- either ALL_APPS or CUSTOMIZE
2604     * @param scaleFactor The scale factor used for the zoom
2605     */
2606    private void setPivotsForZoom(View view, State state, float scaleFactor) {
2607        final int height = view.getHeight();
2608
2609        view.setPivotX(view.getWidth() / 2.0f);
2610        // Set pivotY so that at the starting zoom factor, the view is partially
2611        // visible. Modifying initialHeightFactor changes how much of the view is
2612        // initially showing, and hence the perceived angle from which the view enters.
2613        final float initialHeightFactor = 0.2f;
2614        if (state == State.ALL_APPS) {
2615            view.setPivotY((1 + initialHeightFactor) * height);
2616        } else {
2617            view.setPivotY(-initialHeightFactor * height);
2618        }
2619    }
2620
2621    /**
2622     * Zoom the camera out from the workspace to reveal 'toView'.
2623     * Assumes that the view to show is anchored at either the very top or very bottom
2624     * of the screen.
2625     * @param toState The state to zoom out to. Must be ALL_APPS or CUSTOMIZE.
2626     */
2627    private void cameraZoomOut(State toState, boolean animated) {
2628        final Resources res = getResources();
2629        final int duration = res.getInteger(R.integer.config_allAppsZoomInTime);
2630        final float scale = (float) res.getInteger(R.integer.config_allAppsZoomScaleFactor);
2631        final boolean toAllApps = (toState == State.ALL_APPS);
2632        final View toView = toAllApps ? (View) mAllAppsGrid : mHomeCustomizationDrawer;
2633
2634        setPivotsForZoom(toView, toState, scale);
2635
2636        if (toAllApps) {
2637            mWorkspace.shrink(ShrinkState.BOTTOM_HIDDEN, animated);
2638        } else {
2639            mWorkspace.shrink(ShrinkState.TOP, animated);
2640        }
2641
2642        if (animated) {
2643            ValueAnimator scaleAnim = ObjectAnimator.ofPropertyValuesHolder(toView,
2644                    PropertyValuesHolder.ofFloat("scaleX", scale, 1.0f),
2645                    PropertyValuesHolder.ofFloat("scaleY", scale, 1.0f));
2646            scaleAnim.setDuration(duration);
2647
2648            scaleAnim.setInterpolator(new Workspace.ZoomOutInterpolator());
2649            scaleAnim.addListener(new LauncherAnimatorListenerAdapter() {
2650                @Override
2651                public void onAnimationStart(Animator animation) {
2652                    // Prepare the position
2653                    toView.setTranslationX(0.0f);
2654                    toView.setTranslationY(0.0f);
2655                    toView.setVisibility(View.VISIBLE);
2656                    toView.setAlpha(1.0f);
2657                }
2658                @Override
2659                public void onAnimationEndOrCancel(Animator animation) {
2660                    // If we don't set the final scale values here, if this animation is cancelled
2661                    // it will have the wrong scale value and subsequent cameraPan animations will
2662                    // not fix that
2663                    toView.setScaleX(1.0f);
2664                    toView.setScaleY(1.0f);
2665                }
2666            });
2667
2668            AnimatorSet toolbarHideAnim = new AnimatorSet();
2669            AnimatorSet toolbarShowAnim = new AnimatorSet();
2670            hideAndShowToolbarButtons(toState, toolbarShowAnim, toolbarHideAnim);
2671
2672            // toView should appear right at the end of the workspace shrink animation
2673            final int startDelay = res.getInteger(R.integer.config_workspaceShrinkTime) - duration;
2674
2675            if (mStateAnimation != null) mStateAnimation.cancel();
2676            mStateAnimation = new AnimatorSet();
2677            mStateAnimation.playTogether(scaleAnim, toolbarHideAnim);
2678            mStateAnimation.play(scaleAnim).after(startDelay);
2679
2680            // Show the new toolbar buttons just as the main animation is ending
2681            final int fadeInTime = res.getInteger(R.integer.config_toolbarButtonFadeInTime);
2682            mStateAnimation.play(toolbarShowAnim).after(duration + startDelay - fadeInTime);
2683            mStateAnimation.start();
2684        } else {
2685            toView.setTranslationX(0.0f);
2686            toView.setTranslationY(0.0f);
2687            toView.setScaleX(1.0f);
2688            toView.setScaleY(1.0f);
2689            toView.setVisibility(View.VISIBLE);
2690            hideAndShowToolbarButtons(toState, null, null);
2691        }
2692    }
2693
2694    /**
2695     * Zoom the camera back into the workspace, hiding 'fromView'.
2696     * This is the opposite of cameraZoomOut.
2697     * @param fromState The current state (must be ALL_APPS or CUSTOMIZE).
2698     * @param animated If true, the transition will be animated.
2699     */
2700    private void cameraZoomIn(State fromState, boolean animated) {
2701        cameraZoomIn(fromState, animated, false);
2702    }
2703
2704    private void cameraZoomIn(State fromState, boolean animated, boolean springLoaded) {
2705        Resources res = getResources();
2706        int duration = res.getInteger(R.integer.config_allAppsZoomOutTime);
2707        float scaleFactor = (float) res.getInteger(R.integer.config_allAppsZoomScaleFactor);
2708        final View fromView =
2709            (fromState == State.ALL_APPS) ? (View) mAllAppsGrid : mHomeCustomizationDrawer;
2710
2711        mCustomizePagedView.endChoiceMode();
2712        mAllAppsPagedView.endChoiceMode();
2713
2714        setPivotsForZoom(fromView, fromState, scaleFactor);
2715
2716        if (!springLoaded) {
2717            mWorkspace.unshrink(animated);
2718        }
2719
2720        if (animated) {
2721            if (mStateAnimation != null) mStateAnimation.cancel();
2722            mStateAnimation = new AnimatorSet();
2723            ValueAnimator scaleAnim = ObjectAnimator.ofPropertyValuesHolder(fromView,
2724                    PropertyValuesHolder.ofFloat("scaleX", scaleFactor),
2725                    PropertyValuesHolder.ofFloat("scaleY", scaleFactor));
2726            scaleAnim.setDuration(duration);
2727            scaleAnim.setInterpolator(new Workspace.ZoomInInterpolator());
2728
2729            ValueAnimator alphaAnim = ObjectAnimator.ofPropertyValuesHolder(fromView,
2730                    PropertyValuesHolder.ofFloat("alpha", 1.0f, 0.0f));
2731            alphaAnim.setDuration(res.getInteger(R.integer.config_allAppsFadeOutTime));
2732            alphaAnim.addListener(new LauncherAnimatorListenerAdapter() {
2733                @Override
2734                public void onAnimationEndOrCancel(Animator animation) {
2735                    fromView.setVisibility(View.GONE);
2736                }
2737            });
2738
2739            AnimatorSet toolbarHideAnim = new AnimatorSet();
2740            AnimatorSet toolbarShowAnim = new AnimatorSet();
2741            if (!springLoaded) {
2742                hideAndShowToolbarButtons(State.WORKSPACE, toolbarShowAnim, toolbarHideAnim);
2743            }
2744
2745            mStateAnimation.playTogether(scaleAnim, toolbarHideAnim, alphaAnim);
2746
2747            // Show the new toolbar buttons at the very end of the whole animation
2748            final int fadeInTime = res.getInteger(R.integer.config_toolbarButtonFadeInTime);
2749            final int unshrinkTime = res.getInteger(R.integer.config_workspaceUnshrinkTime);
2750            mStateAnimation.play(toolbarShowAnim).after(unshrinkTime - fadeInTime);
2751            mStateAnimation.start();
2752        } else {
2753            fromView.setVisibility(View.GONE);
2754            if (!springLoaded) {
2755                hideAndShowToolbarButtons(State.WORKSPACE, null, null);
2756            }
2757        }
2758    }
2759
2760    /**
2761     * Pan the camera in the vertical plane between 'fromView' and 'toView'.
2762     * This is the transition used on xlarge screens to go between all apps and
2763     * the home customization drawer.
2764     * @param fromState The view to pan away from. Must be ALL_APPS or CUSTOMIZE.
2765     * @param toState The view to pan into the frame. Must be ALL_APPS or CUSTOMIZE.
2766     * @param animated If true, the transition will be animated.
2767     */
2768    private void cameraPan(State fromState, State toState, boolean animated) {
2769        final Resources res = getResources();
2770        final int duration = res.getInteger(R.integer.config_allAppsCameraPanTime);
2771        final int workspaceHeight = mWorkspace.getHeight();
2772
2773        final boolean fromAllApps = (fromState == State.ALL_APPS);
2774        final View fromView = fromAllApps ? (View) mAllAppsGrid : mHomeCustomizationDrawer;
2775        final View toView = fromAllApps ? mHomeCustomizationDrawer : (View) mAllAppsGrid;
2776
2777        final float fromViewStartY = fromAllApps ? 0.0f : fromView.getY();
2778        final float fromViewEndY = fromAllApps ? -fromView.getHeight() * 2 : workspaceHeight * 2;
2779        final float toViewStartY = fromAllApps ? workspaceHeight * 2 : -toView.getHeight() * 2;
2780        final float toViewEndY = fromAllApps ? workspaceHeight - toView.getHeight() : 0.0f;
2781
2782        mCustomizePagedView.endChoiceMode();
2783        mAllAppsPagedView.endChoiceMode();
2784
2785        if (toState == State.ALL_APPS) {
2786            mWorkspace.shrink(Workspace.ShrinkState.BOTTOM_HIDDEN, animated);
2787        } else {
2788            mWorkspace.shrink(Workspace.ShrinkState.TOP, animated);
2789        }
2790
2791        if (animated) {
2792            if (mStateAnimation != null) mStateAnimation.cancel();
2793            mStateAnimation = new AnimatorSet();
2794            mStateAnimation.addListener(new LauncherAnimatorListenerAdapter() {
2795                @Override
2796                public void onAnimationStart(Animator animation) {
2797                    toView.setVisibility(View.VISIBLE);
2798                    toView.setY(toViewStartY);
2799                    toView.setAlpha(1.0f);
2800                }
2801                @Override
2802                public void onAnimationEndOrCancel(Animator animation) {
2803                    fromView.setVisibility(View.GONE);
2804                }
2805            });
2806
2807            AnimatorSet toolbarHideAnim = new AnimatorSet();
2808            AnimatorSet toolbarShowAnim = new AnimatorSet();
2809            hideAndShowToolbarButtons(toState, toolbarShowAnim, toolbarHideAnim);
2810
2811            ObjectAnimator fromAnim = ObjectAnimator.ofFloat(fromView, "y",
2812                    fromViewStartY, fromViewEndY);
2813            fromAnim.setDuration(duration);
2814            ObjectAnimator toAnim = ObjectAnimator.ofPropertyValuesHolder(toView,
2815                    PropertyValuesHolder.ofFloat("y", toViewStartY, toViewEndY),
2816                    PropertyValuesHolder.ofFloat("scaleX", toView.getScaleX(), 1.0f),
2817                    PropertyValuesHolder.ofFloat("scaleY", toView.getScaleY(), 1.0f)
2818                    );
2819            fromAnim.setDuration(duration);
2820            mStateAnimation.playTogether(toolbarHideAnim, fromAnim, toAnim);
2821
2822            // Show the new toolbar buttons just as the main animation is ending
2823            final int fadeInTime = res.getInteger(R.integer.config_toolbarButtonFadeInTime);
2824            mStateAnimation.play(toolbarShowAnim).after(duration - fadeInTime);
2825            mStateAnimation.start();
2826        } else {
2827            fromView.setY(fromViewEndY);
2828            fromView.setVisibility(View.GONE);
2829            toView.setY(toViewEndY);
2830            toView.setScaleX(1.0f);
2831            toView.setScaleY(1.0f);
2832            toView.setVisibility(View.VISIBLE);
2833            hideAndShowToolbarButtons(toState, null, null);
2834        }
2835    }
2836
2837    void showAllApps(boolean animated) {
2838        if (mState == State.ALL_APPS) {
2839            return;
2840        }
2841
2842        if (LauncherApplication.isScreenXLarge()) {
2843            if (mState == State.CUSTOMIZE) {
2844                cameraPan(State.CUSTOMIZE, State.ALL_APPS, animated);
2845            } else {
2846                cameraZoomOut(State.ALL_APPS, animated);
2847            }
2848        } else {
2849            mAllAppsGrid.zoom(1.0f, animated);
2850        }
2851
2852        ((View) mAllAppsGrid).setFocusable(true);
2853        ((View) mAllAppsGrid).requestFocus();
2854
2855        // TODO: fade these two too
2856        mDeleteZone.setVisibility(View.GONE);
2857
2858        // Change the state *after* we've called all the transition code
2859        mState = State.ALL_APPS;
2860    }
2861
2862
2863    void showWorkspace(boolean animated) {
2864        showWorkspace(animated, null);
2865    }
2866
2867    void showWorkspace(boolean animated, CellLayout layout) {
2868        if (layout != null) {
2869            // always animated, but that's ok since we never specify a layout and
2870            // want no animation
2871            mWorkspace.unshrink(layout);
2872        } else {
2873            mWorkspace.unshrink(animated);
2874        }
2875        if (mState == State.ALL_APPS) {
2876            closeAllApps(animated);
2877        } else if (mState == State.CUSTOMIZE) {
2878            hideCustomizationDrawer(animated);
2879        }
2880
2881        // Change the state *after* we've called all the transition code
2882        mState = State.WORKSPACE;
2883    }
2884
2885    void enterSpringLoadedDragMode(CellLayout layout) {
2886        mWorkspace.enterSpringLoadedDragMode(layout);
2887        if (mState == State.ALL_APPS) {
2888            cameraZoomIn(State.ALL_APPS, true, true);
2889            mState = State.ALL_APPS_SPRING_LOADED;
2890        } else if (mState == State.CUSTOMIZE) {
2891            cameraZoomIn(State.CUSTOMIZE, true, true);
2892            mState = State.CUSTOMIZE_SPRING_LOADED;
2893        }/* else {
2894            // we're already in spring loaded mode; don't do anything
2895        }*/
2896    }
2897
2898    void exitSpringLoadedDragMode() {
2899        if (mState == State.ALL_APPS_SPRING_LOADED) {
2900            mWorkspace.exitSpringLoadedDragMode(Workspace.ShrinkState.BOTTOM_VISIBLE);
2901            cameraZoomOut(State.ALL_APPS, true);
2902            mState = State.ALL_APPS;
2903        } else if (mState == State.CUSTOMIZE_SPRING_LOADED) {
2904            mWorkspace.exitSpringLoadedDragMode(Workspace.ShrinkState.TOP);
2905            cameraZoomOut(State.CUSTOMIZE, true);
2906            mState = State.CUSTOMIZE;
2907        }/* else {
2908            // we're not in spring loaded mode; don't do anything
2909        }*/
2910    }
2911
2912    /**
2913     * Things to test when changing this code.
2914     *   - Home from workspace
2915     *          - from center screen
2916     *          - from other screens
2917     *   - Home from all apps
2918     *          - from center screen
2919     *          - from other screens
2920     *   - Back from all apps
2921     *          - from center screen
2922     *          - from other screens
2923     *   - Launch app from workspace and quit
2924     *          - with back
2925     *          - with home
2926     *   - Launch app from all apps and quit
2927     *          - with back
2928     *          - with home
2929     *   - Go to a screen that's not the default, then all
2930     *     apps, and launch and app, and go back
2931     *          - with back
2932     *          -with home
2933     *   - On workspace, long press power and go back
2934     *          - with back
2935     *          - with home
2936     *   - On all apps, long press power and go back
2937     *          - with back
2938     *          - with home
2939     *   - On workspace, power off
2940     *   - On all apps, power off
2941     *   - Launch an app and turn off the screen while in that app
2942     *          - Go back with home key
2943     *          - Go back with back key  TODO: make this not go to workspace
2944     *          - From all apps
2945     *          - From workspace
2946     *   - Enter and exit car mode (becuase it causes an extra configuration changed)
2947     *          - From all apps
2948     *          - From the center workspace
2949     *          - From another workspace
2950     */
2951    void closeAllApps(boolean animated) {
2952        if (mState == State.ALL_APPS || mState == State.ALL_APPS_SPRING_LOADED) {
2953            mWorkspace.setVisibility(View.VISIBLE);
2954            if (LauncherApplication.isScreenXLarge()) {
2955                cameraZoomIn(State.ALL_APPS, animated);
2956            } else {
2957                mAllAppsGrid.zoom(0.0f, animated);
2958            }
2959            ((View)mAllAppsGrid).setFocusable(false);
2960            mWorkspace.getChildAt(mWorkspace.getCurrentPage()).requestFocus();
2961        }
2962    }
2963
2964    void lockAllApps() {
2965        // TODO
2966    }
2967
2968    void unlockAllApps() {
2969        // TODO
2970    }
2971
2972    // Show the customization drawer (only exists in x-large configuration)
2973    private void showCustomizationDrawer(boolean animated) {
2974        if (mState == State.ALL_APPS) {
2975            cameraPan(State.ALL_APPS, State.CUSTOMIZE, animated);
2976        } else {
2977            cameraZoomOut(State.CUSTOMIZE, animated);
2978        }
2979        // Change the state *after* we've called all the transition code
2980        mState = State.CUSTOMIZE;
2981    }
2982
2983    // Hide the customization drawer (only exists in x-large configuration)
2984    void hideCustomizationDrawer(boolean animated) {
2985        if (mState == State.CUSTOMIZE || mState == State.CUSTOMIZE_SPRING_LOADED) {
2986            cameraZoomIn(State.CUSTOMIZE, animated);
2987        }
2988    }
2989
2990    void addExternalItemToScreen(ItemInfo itemInfo, CellLayout layout) {
2991        if (!mWorkspace.addExternalItemToScreen(itemInfo, layout)) {
2992            showOutOfSpaceMessage();
2993        }
2994    }
2995
2996    void onWorkspaceClick(CellLayout layout) {
2997        showWorkspace(true, layout);
2998    }
2999
3000    // if successful in getting icon, return it; otherwise, set button to use default drawable
3001    private Drawable.ConstantState updateButtonWithIconFromExternalActivity(
3002            int buttonId, ComponentName activityName, int fallbackDrawableId) {
3003        ImageView button = (ImageView) findViewById(buttonId);
3004        Drawable toolbarIcon = null;
3005        try {
3006            PackageManager packageManager = getPackageManager();
3007            // Look for the toolbar icon specified in the activity meta-data
3008            Bundle metaData = packageManager.getActivityInfo(
3009                    activityName, PackageManager.GET_META_DATA).metaData;
3010            if (metaData != null) {
3011                int iconResId = metaData.getInt(TOOLBAR_ICON_METADATA_NAME);
3012                if (iconResId != 0) {
3013                    Resources res = packageManager.getResourcesForActivity(activityName);
3014                    toolbarIcon = res.getDrawable(iconResId);
3015                }
3016            }
3017        } catch (NameNotFoundException e) {
3018            // Do nothing
3019        }
3020        // If we were unable to find the icon via the meta-data, use a generic one
3021        if (toolbarIcon == null) {
3022            button.setImageResource(fallbackDrawableId);
3023            return null;
3024        } else {
3025            button.setImageDrawable(toolbarIcon);
3026            return toolbarIcon.getConstantState();
3027        }
3028    }
3029
3030    private void updateButtonWithDrawable(int buttonId, Drawable.ConstantState d) {
3031        ImageView button = (ImageView) findViewById(buttonId);
3032        button.setImageDrawable(d.newDrawable(getResources()));
3033    }
3034
3035    private void updateGlobalSearchIcon() {
3036        if (LauncherApplication.isScreenXLarge()) {
3037            final SearchManager searchManager =
3038                    (SearchManager) getSystemService(Context.SEARCH_SERVICE);
3039            ComponentName activityName = searchManager.getGlobalSearchActivity();
3040            if (activityName != null) {
3041                sGlobalSearchIcon = updateButtonWithIconFromExternalActivity(
3042                        R.id.search_button, activityName, R.drawable.search_button_generic);
3043            } else {
3044                findViewById(R.id.search_button).setVisibility(View.GONE);
3045            }
3046        }
3047    }
3048
3049    private void updateGlobalSearchIcon(Drawable.ConstantState d) {
3050        updateButtonWithDrawable(R.id.search_button, d);
3051    }
3052
3053    private void updateVoiceSearchIcon() {
3054        if (LauncherApplication.isScreenXLarge()) {
3055            Intent intent = new Intent(RecognizerIntent.ACTION_WEB_SEARCH);
3056            ComponentName activityName = intent.resolveActivity(getPackageManager());
3057            if (activityName != null) {
3058                sVoiceSearchIcon = updateButtonWithIconFromExternalActivity(
3059                        R.id.voice_button, activityName, R.drawable.ic_voice_search);
3060            } else {
3061                findViewById(R.id.voice_button).setVisibility(View.GONE);
3062            }
3063        }
3064    }
3065
3066    private void updateVoiceSearchIcon(Drawable.ConstantState d) {
3067        updateButtonWithDrawable(R.id.voice_button, d);
3068    }
3069
3070    /**
3071     * Sets the app market icon (shown when all apps is visible on x-large screens)
3072     */
3073    private void updateAppMarketIcon() {
3074        if (LauncherApplication.isScreenXLarge()) {
3075            Intent intent = new Intent(Intent.ACTION_MAIN).addCategory(Intent.CATEGORY_APP_MARKET);
3076            // Find the app market activity by resolving an intent.
3077            // (If multiple app markets are installed, it will return the ResolverActivity.)
3078            ComponentName activityName = intent.resolveActivity(getPackageManager());
3079            if (activityName != null) {
3080                mAppMarketIntent = intent;
3081                sAppMarketIcon = updateButtonWithIconFromExternalActivity(
3082                        R.id.market_button, activityName, R.drawable.app_market_generic);
3083            }
3084        }
3085    }
3086
3087    private void updateAppMarketIcon(Drawable.ConstantState d) {
3088        updateButtonWithDrawable(R.id.market_button, d);
3089    }
3090
3091    /**
3092     * Displays the shortcut creation dialog and launches, if necessary, the
3093     * appropriate activity.
3094     */
3095    private class CreateShortcut implements DialogInterface.OnClickListener,
3096            DialogInterface.OnCancelListener, DialogInterface.OnDismissListener,
3097            DialogInterface.OnShowListener {
3098
3099        private AddAdapter mAdapter;
3100
3101        Dialog createDialog() {
3102            mAdapter = new AddAdapter(Launcher.this);
3103
3104            final AlertDialog.Builder builder = new AlertDialog.Builder(Launcher.this);
3105            builder.setTitle(getString(R.string.menu_item_add_item));
3106            builder.setAdapter(mAdapter, this);
3107
3108            builder.setInverseBackgroundForced(true);
3109
3110            AlertDialog dialog = builder.create();
3111            dialog.setOnCancelListener(this);
3112            dialog.setOnDismissListener(this);
3113            dialog.setOnShowListener(this);
3114
3115            return dialog;
3116        }
3117
3118        public void onCancel(DialogInterface dialog) {
3119            mWaitingForResult = false;
3120            cleanup();
3121        }
3122
3123        public void onDismiss(DialogInterface dialog) {
3124        }
3125
3126        private void cleanup() {
3127            try {
3128                dismissDialog(DIALOG_CREATE_SHORTCUT);
3129            } catch (Exception e) {
3130                // An exception is thrown if the dialog is not visible, which is fine
3131            }
3132        }
3133
3134        /**
3135         * Handle the action clicked in the "Add to home" dialog.
3136         */
3137        public void onClick(DialogInterface dialog, int which) {
3138            Resources res = getResources();
3139            cleanup();
3140
3141            switch (which) {
3142                case AddAdapter.ITEM_SHORTCUT: {
3143                    pickShortcut();
3144                    break;
3145                }
3146
3147                case AddAdapter.ITEM_APPWIDGET: {
3148                    int appWidgetId = Launcher.this.mAppWidgetHost.allocateAppWidgetId();
3149
3150                    Intent pickIntent = new Intent(AppWidgetManager.ACTION_APPWIDGET_PICK);
3151                    pickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
3152                    // start the pick activity
3153                    startActivityForResult(pickIntent, REQUEST_PICK_APPWIDGET);
3154                    break;
3155                }
3156
3157                case AddAdapter.ITEM_LIVE_FOLDER: {
3158                    // Insert extra item to handle inserting folder
3159                    Bundle bundle = new Bundle();
3160
3161                    ArrayList<String> shortcutNames = new ArrayList<String>();
3162                    shortcutNames.add(res.getString(R.string.group_folder));
3163                    bundle.putStringArrayList(Intent.EXTRA_SHORTCUT_NAME, shortcutNames);
3164
3165                    ArrayList<ShortcutIconResource> shortcutIcons =
3166                            new ArrayList<ShortcutIconResource>();
3167                    shortcutIcons.add(ShortcutIconResource.fromContext(Launcher.this,
3168                            R.drawable.ic_launcher_folder));
3169                    bundle.putParcelableArrayList(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, shortcutIcons);
3170
3171                    Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
3172                    pickIntent.putExtra(Intent.EXTRA_INTENT,
3173                            new Intent(LiveFolders.ACTION_CREATE_LIVE_FOLDER));
3174                    pickIntent.putExtra(Intent.EXTRA_TITLE,
3175                            getText(R.string.title_select_live_folder));
3176                    pickIntent.putExtras(bundle);
3177
3178                    startActivityForResult(pickIntent, REQUEST_PICK_LIVE_FOLDER);
3179                    break;
3180                }
3181
3182                case AddAdapter.ITEM_WALLPAPER: {
3183                    startWallpaper();
3184                    break;
3185                }
3186            }
3187        }
3188
3189        public void onShow(DialogInterface dialog) {
3190            mWaitingForResult = true;
3191        }
3192    }
3193
3194    /**
3195     * Receives notifications when applications are added/removed.
3196     */
3197    private class CloseSystemDialogsIntentReceiver extends BroadcastReceiver {
3198        @Override
3199        public void onReceive(Context context, Intent intent) {
3200            closeSystemDialogs();
3201            String reason = intent.getStringExtra("reason");
3202            if (!"homekey".equals(reason)) {
3203                boolean animate = true;
3204                if (mPaused || "lock".equals(reason)) {
3205                    animate = false;
3206                }
3207                showWorkspace(animate);
3208            }
3209        }
3210    }
3211
3212    /**
3213     * Receives notifications whenever the appwidgets are reset.
3214     */
3215    private class AppWidgetResetObserver extends ContentObserver {
3216        public AppWidgetResetObserver() {
3217            super(new Handler());
3218        }
3219
3220        @Override
3221        public void onChange(boolean selfChange) {
3222            onAppWidgetReset();
3223        }
3224    }
3225
3226    /**
3227     * If the activity is currently paused, signal that we need to re-run the loader
3228     * in onResume.
3229     *
3230     * This needs to be called from incoming places where resources might have been loaded
3231     * while we are paused.  That is becaues the Configuration might be wrong
3232     * when we're not running, and if it comes back to what it was when we
3233     * were paused, we are not restarted.
3234     *
3235     * Implementation of the method from LauncherModel.Callbacks.
3236     *
3237     * @return true if we are currently paused.  The caller might be able to
3238     * skip some work in that case since we will come back again.
3239     */
3240    public boolean setLoadOnResume() {
3241        if (mPaused) {
3242            Log.i(TAG, "setLoadOnResume");
3243            mOnResumeNeedsLoad = true;
3244            return true;
3245        } else {
3246            return false;
3247        }
3248    }
3249
3250    /**
3251     * Implementation of the method from LauncherModel.Callbacks.
3252     */
3253    public int getCurrentWorkspaceScreen() {
3254        if (mWorkspace != null) {
3255            return mWorkspace.getCurrentPage();
3256        } else {
3257            return SCREEN_COUNT / 2;
3258        }
3259    }
3260
3261    void setAllAppsPagedView(PagedView view) {
3262        mAllAppsPagedView = view;
3263    }
3264
3265    /**
3266     * Refreshes the shortcuts shown on the workspace.
3267     *
3268     * Implementation of the method from LauncherModel.Callbacks.
3269     */
3270    public void startBinding() {
3271        final Workspace workspace = mWorkspace;
3272        int count = workspace.getChildCount();
3273        for (int i = 0; i < count; i++) {
3274            // Use removeAllViewsInLayout() to avoid an extra requestLayout() and invalidate().
3275            ((ViewGroup) workspace.getChildAt(i)).removeAllViewsInLayout();
3276        }
3277
3278        if (DEBUG_USER_INTERFACE) {
3279            android.widget.Button finishButton = new android.widget.Button(this);
3280            finishButton.setText("Finish");
3281            workspace.addInScreen(finishButton, 1, 0, 0, 1, 1);
3282
3283            finishButton.setOnClickListener(new android.widget.Button.OnClickListener() {
3284                public void onClick(View v) {
3285                    finish();
3286                }
3287            });
3288        }
3289    }
3290
3291    /**
3292     * Bind the items start-end from the list.
3293     *
3294     * Implementation of the method from LauncherModel.Callbacks.
3295     */
3296    public void bindItems(ArrayList<ItemInfo> shortcuts, int start, int end) {
3297
3298        setLoadOnResume();
3299
3300        final Workspace workspace = mWorkspace;
3301
3302        for (int i=start; i<end; i++) {
3303            final ItemInfo item = shortcuts.get(i);
3304            mDesktopItems.add(item);
3305            switch (item.itemType) {
3306                case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
3307                case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
3308                    final View shortcut = createShortcut((ShortcutInfo)item);
3309                    workspace.addInScreen(shortcut, item.screen, item.cellX, item.cellY, 1, 1,
3310                            false);
3311                    break;
3312                case LauncherSettings.Favorites.ITEM_TYPE_USER_FOLDER:
3313                    final FolderIcon newFolder = FolderIcon.fromXml(R.layout.folder_icon, this,
3314                            (ViewGroup) workspace.getChildAt(workspace.getCurrentPage()),
3315                            (UserFolderInfo) item, mIconCache);
3316                    workspace.addInScreen(newFolder, item.screen, item.cellX, item.cellY, 1, 1,
3317                            false);
3318                    break;
3319                case LauncherSettings.Favorites.ITEM_TYPE_LIVE_FOLDER:
3320                    final FolderIcon newLiveFolder = LiveFolderIcon.fromXml(
3321                            R.layout.live_folder_icon, this,
3322                            (ViewGroup) workspace.getChildAt(workspace.getCurrentPage()),
3323                            (LiveFolderInfo) item);
3324                    workspace.addInScreen(newLiveFolder, item.screen, item.cellX, item.cellY, 1, 1,
3325                            false);
3326                    break;
3327            }
3328        }
3329
3330        workspace.requestLayout();
3331    }
3332
3333    /**
3334     * Implementation of the method from LauncherModel.Callbacks.
3335     */
3336    public void bindFolders(HashMap<Long, FolderInfo> folders) {
3337        setLoadOnResume();
3338        sFolders.clear();
3339        sFolders.putAll(folders);
3340    }
3341
3342    /**
3343     * Add the views for a widget to the workspace.
3344     *
3345     * Implementation of the method from LauncherModel.Callbacks.
3346     */
3347    public void bindAppWidget(LauncherAppWidgetInfo item) {
3348        setLoadOnResume();
3349
3350        final long start = DEBUG_WIDGETS ? SystemClock.uptimeMillis() : 0;
3351        if (DEBUG_WIDGETS) {
3352            Log.d(TAG, "bindAppWidget: " + item);
3353        }
3354        final Workspace workspace = mWorkspace;
3355
3356        final int appWidgetId = item.appWidgetId;
3357        final AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
3358        if (DEBUG_WIDGETS) {
3359            Log.d(TAG, "bindAppWidget: id=" + item.appWidgetId + " belongs to component " + appWidgetInfo.provider);
3360        }
3361
3362        item.hostView = mAppWidgetHost.createView(this, appWidgetId, appWidgetInfo);
3363
3364        item.hostView.setAppWidget(appWidgetId, appWidgetInfo);
3365        item.hostView.setTag(item);
3366
3367        workspace.addInScreen(item.hostView, item.screen, item.cellX,
3368                item.cellY, item.spanX, item.spanY, false);
3369
3370        addWidgetToAutoAdvanceIfNeeded(item.hostView, appWidgetInfo);
3371
3372        workspace.requestLayout();
3373
3374        mDesktopItems.add(item);
3375
3376        if (DEBUG_WIDGETS) {
3377            Log.d(TAG, "bound widget id="+item.appWidgetId+" in "
3378                    + (SystemClock.uptimeMillis()-start) + "ms");
3379        }
3380    }
3381
3382    /**
3383     * Callback saying that there aren't any more items to bind.
3384     *
3385     * Implementation of the method from LauncherModel.Callbacks.
3386     */
3387    public void finishBindingItems() {
3388        setLoadOnResume();
3389
3390        if (mSavedState != null) {
3391            if (!mWorkspace.hasFocus()) {
3392                mWorkspace.getChildAt(mWorkspace.getCurrentPage()).requestFocus();
3393            }
3394
3395            final long[] userFolders = mSavedState.getLongArray(RUNTIME_STATE_USER_FOLDERS);
3396            if (userFolders != null) {
3397                for (long folderId : userFolders) {
3398                    final FolderInfo info = sFolders.get(folderId);
3399                    if (info != null) {
3400                        openFolder(info);
3401                    }
3402                }
3403                final Folder openFolder = mWorkspace.getOpenFolder();
3404                if (openFolder != null) {
3405                    openFolder.requestFocus();
3406                }
3407            }
3408
3409            mSavedState = null;
3410        }
3411
3412        if (mSavedInstanceState != null) {
3413            super.onRestoreInstanceState(mSavedInstanceState);
3414            mSavedInstanceState = null;
3415        }
3416
3417        mWorkspaceLoading = false;
3418    }
3419
3420    /**
3421     * Updates the icons on the launcher that are affected by changes to the package list
3422     * on the device.
3423     */
3424    private void updateIconsAffectedByPackageManagerChanges() {
3425        updateAppMarketIcon();
3426        updateGlobalSearchIcon();
3427        updateVoiceSearchIcon();
3428    }
3429
3430    /**
3431     * Add the icons for all apps.
3432     *
3433     * Implementation of the method from LauncherModel.Callbacks.
3434     */
3435    public void bindAllApplications(ArrayList<ApplicationInfo> apps) {
3436        mAllAppsGrid.setApps(apps);
3437        if (mCustomizePagedView != null) {
3438            mCustomizePagedView.setApps(apps);
3439        }
3440        updateIconsAffectedByPackageManagerChanges();
3441    }
3442
3443    /**
3444     * A package was installed.
3445     *
3446     * Implementation of the method from LauncherModel.Callbacks.
3447     */
3448    public void bindAppsAdded(ArrayList<ApplicationInfo> apps) {
3449        setLoadOnResume();
3450        removeDialog(DIALOG_CREATE_SHORTCUT);
3451        mAllAppsGrid.addApps(apps);
3452        if (mCustomizePagedView != null) {
3453            mCustomizePagedView.addApps(apps);
3454        }
3455        updateIconsAffectedByPackageManagerChanges();
3456    }
3457
3458    /**
3459     * A package was updated.
3460     *
3461     * Implementation of the method from LauncherModel.Callbacks.
3462     */
3463    public void bindAppsUpdated(ArrayList<ApplicationInfo> apps) {
3464        setLoadOnResume();
3465        removeDialog(DIALOG_CREATE_SHORTCUT);
3466        mWorkspace.updateShortcuts(apps);
3467        mAllAppsGrid.updateApps(apps);
3468        if (mCustomizePagedView != null) {
3469            mCustomizePagedView.updateApps(apps);
3470        }
3471        updateIconsAffectedByPackageManagerChanges();
3472    }
3473
3474    /**
3475     * A package was uninstalled.
3476     *
3477     * Implementation of the method from LauncherModel.Callbacks.
3478     */
3479    public void bindAppsRemoved(ArrayList<ApplicationInfo> apps, boolean permanent) {
3480        removeDialog(DIALOG_CREATE_SHORTCUT);
3481        if (permanent) {
3482            mWorkspace.removeItems(apps);
3483        }
3484        mAllAppsGrid.removeApps(apps);
3485        if (mCustomizePagedView != null) {
3486            mCustomizePagedView.removeApps(apps);
3487        }
3488        updateIconsAffectedByPackageManagerChanges();
3489    }
3490
3491    /**
3492     * A number of packages were updated.
3493     */
3494    public void bindPackagesUpdated() {
3495        // update the customization drawer contents
3496        if (mCustomizePagedView != null) {
3497            mCustomizePagedView.update();
3498        }
3499    }
3500
3501    /**
3502     * Prints out out state for debugging.
3503     */
3504    public void dumpState() {
3505        Log.d(TAG, "BEGIN launcher2 dump state for launcher " + this);
3506        Log.d(TAG, "mSavedState=" + mSavedState);
3507        Log.d(TAG, "mWorkspaceLoading=" + mWorkspaceLoading);
3508        Log.d(TAG, "mRestoring=" + mRestoring);
3509        Log.d(TAG, "mWaitingForResult=" + mWaitingForResult);
3510        Log.d(TAG, "mSavedInstanceState=" + mSavedInstanceState);
3511        Log.d(TAG, "mDesktopItems.size=" + mDesktopItems.size());
3512        Log.d(TAG, "sFolders.size=" + sFolders.size());
3513        mModel.dumpState();
3514        mAllAppsGrid.dumpState();
3515        Log.d(TAG, "END launcher2 dump state");
3516    }
3517}
3518