Using the default search widget in Launcher3

> Removing all logic related to search and voice overlays
from Launcher3
> Using the widget provided by global search provider on the
homescreen
> Removing VoiceButtonProxy, as it is not being used anymore

Change-Id: Ie8b09b44f7213c8fa11bce685914442e4884295d

1 files changed, 52 insertions, 352 deletions

diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 8b3b2a1e3..ffbb87352 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -66,7 +66,6 @@ import android.os.Handler;
 import android.os.Message;
 import android.os.StrictMode;
 import android.os.SystemClock;
-import android.speech.RecognizerIntent;
 import android.text.Selection;
 import android.text.SpannableStringBuilder;
 import android.text.TextUtils;
@@ -96,7 +95,6 @@ import android.view.inputmethod.InputMethodManager;
 import android.widget.Advanceable;
 import android.widget.FrameLayout;
 import android.widget.ImageView;
-import android.widget.TextView;
 import android.widget.Toast;
 
 import com.android.launcher3.DropTarget.DragObject;
@@ -210,15 +208,12 @@ public class Launcher extends Activity
     static final String ACTION_FIRST_LOAD_COMPLETE =
             "com.android.launcher3.action.FIRST_LOAD_COMPLETE";
 
-    private static final String TOOLBAR_ICON_METADATA_NAME = "com.android.launcher.toolbar_icon";
-    private static final String TOOLBAR_SEARCH_ICON_METADATA_NAME =
-            "com.android.launcher.toolbar_search_icon";
-    private static final String TOOLBAR_VOICE_SEARCH_ICON_METADATA_NAME =
-            "com.android.launcher.toolbar_voice_search_icon";
-
     public static final String SHOW_WEIGHT_WATCHER = "debug.show_mem";
     public static final boolean SHOW_WEIGHT_WATCHER_DEFAULT = false;
 
+    private static final String QSB_WIDGET_ID = "qsb_widget_id";
+    private static final String QSB_WIDGET_PROVIDER = "qsb_widget_provider";
+
     public static final String USER_HAS_MIGRATED = "launcher.user_migrated_from_old_data";
 
     /** The different states that Launcher can be in. */
@@ -282,7 +277,7 @@ public class Launcher extends Activity
     private AppsCustomizeTabHost mAppsCustomizeTabHost;
     private AppsCustomizePagedView mAppsCustomizeContent;
     private boolean mAutoAdvanceRunning = false;
-    private View mQsb;
+    private AppWidgetHostView mQsb;
 
     private Bundle mSavedState;
     // We set the state in both onCreate and then onNewIntent in some cases, which causes both
@@ -330,10 +325,6 @@ public class Launcher extends Activity
     // match the sensor state.
     private final int mRestoreScreenOrientationDelay = 500;
 
-    // External icons saved in case of resource changes, orientation, etc.
-    private static Drawable.ConstantState[] sGlobalSearchIcon = new Drawable.ConstantState[2];
-    private static Drawable.ConstantState[] sVoiceSearchIcon = new Drawable.ConstantState[2];
-
     private Drawable mWorkspaceBackgroundDrawable;
 
     private final ArrayList<Integer> mSynchronouslyBoundPages = new ArrayList<Integer>();
@@ -484,8 +475,6 @@ public class Launcher extends Activity
         IntentFilter filter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
         registerReceiver(mCloseSystemDialogsReceiver, filter);
 
-        updateGlobalIcons();
-
         // On large interfaces, we want the screen to auto-rotate based on the current orientation
         unlockScreenOrientation(true);
 
@@ -567,28 +556,6 @@ public class Launcher extends Activity
         }
     }
 
-    private void updateGlobalIcons() {
-        boolean searchVisible = false;
-        boolean voiceVisible = false;
-        // If we have a saved version of these external icons, we load them up immediately
-        int coi = getCurrentOrientationIndexForGlobalIcons();
-        if (sGlobalSearchIcon[coi] == null || sVoiceSearchIcon[coi] == null) {
-            searchVisible = updateGlobalSearchIcon();
-            voiceVisible = updateVoiceSearchIcon(searchVisible);
-        }
-        if (sGlobalSearchIcon[coi] != null) {
-             updateGlobalSearchIcon(sGlobalSearchIcon[coi]);
-             searchVisible = true;
-        }
-        if (sVoiceSearchIcon[coi] != null) {
-            updateVoiceSearchIcon(sVoiceSearchIcon[coi]);
-            voiceVisible = true;
-        }
-        if (mSearchDropTargetBar != null) {
-            mSearchDropTargetBar.onSearchPackagesChanged(searchVisible, voiceVisible);
-        }
-    }
-
     private void checkForLocaleChange() {
         if (sLocaleConfiguration == null) {
             new AsyncTask<Void, Void, LocaleConfiguration>() {
@@ -1078,12 +1045,6 @@ public class Launcher extends Activity
         // Process any items that were added while Launcher was away.
         InstallShortcutReceiver.disableAndFlushInstallQueue(this);
 
-        // Update the voice search button proxy
-        updateVoiceButtonProxyVisible(false);
-
-        // Again, as with the above scenario, it's possible that one or more of the global icons
-        // were updated in the wrong orientation.
-        updateGlobalIcons();
         if (DEBUG_RESUME_TIME) {
             Log.d(TAG, "Time spent in onResume: " + (System.currentTimeMillis() - startTime));
         }
@@ -1473,6 +1434,7 @@ public class Launcher extends Activity
         dragController.addDropTarget(mWorkspace);
         if (mSearchDropTargetBar != null) {
             mSearchDropTargetBar.setup(this, dragController);
+            mSearchDropTargetBar.setQsbSearchBar(getQsbBar());
         }
 
         if (getResources().getBoolean(R.bool.debug_memory_enabled)) {
@@ -2645,51 +2607,6 @@ public class Launcher extends Activity
     }
 
     /**
-     * Event handler for the search button
-     *
-     * @param v The view that was clicked.
-     */
-    public void onClickSearchButton(View v) {
-        v.performHapticFeedback(HapticFeedbackConstants.VIRTUAL_KEY);
-
-        onSearchRequested();
-    }
-
-    /**
-     * Event handler for the voice button
-     *
-     * @param v The view that was clicked.
-     */
-    public void onClickVoiceButton(View v) {
-        v.performHapticFeedback(HapticFeedbackConstants.VIRTUAL_KEY);
-
-        startVoice();
-    }
-
-    public void startVoice() {
-        if (mLauncherCallbacks != null && mLauncherCallbacks.providesSearch()) {
-            mLauncherCallbacks.startVoice();
-            return;
-        }
-
-        try {
-            final SearchManager searchManager =
-                    (SearchManager) getSystemService(Context.SEARCH_SERVICE);
-            ComponentName activityName = searchManager.getGlobalSearchActivity();
-            Intent intent = new Intent(RecognizerIntent.ACTION_WEB_SEARCH);
-            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-            if (activityName != null) {
-                intent.setPackage(activityName.getPackageName());
-            }
-            startActivity(null, intent, "onClickVoiceButton");
-        } catch (ActivityNotFoundException e) {
-            Intent intent = new Intent(RecognizerIntent.ACTION_WEB_SEARCH);
-            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-            startActivitySafely(null, intent, "onClickVoiceButton");
-        }
-    }
-
-    /**
      * Event handler for the "grid" button that appears on the home screen, which
      * enters all apps mode.
      *
@@ -2967,10 +2884,8 @@ public class Launcher extends Activity
     }
 
     void startApplicationDetailsActivity(ComponentName componentName, UserHandleCompat user) {
-        String packageName = componentName.getPackageName();
         try {
             LauncherAppsCompat launcherApps = LauncherAppsCompat.getInstance(this);
-            UserManagerCompat userManager = UserManagerCompat.getInstance(this);
             launcherApps.showAppDetailsForProfile(componentName, user);
         } catch (SecurityException e) {
             Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
@@ -3445,8 +3360,6 @@ public class Launcher extends Activity
             final View page = content.getPageAt(content.getCurrentPage());
             final View revealView = toView.findViewById(R.id.fake_page);
 
-            final float initialPanelAlpha = 1f;
-
             final boolean isWidgetTray = contentType == AppsCustomizePagedView.ContentType.Widgets;
             if (isWidgetTray) {
                 revealView.setBackground(res.getDrawable(R.drawable.quantum_panel_dark));
@@ -4032,137 +3945,8 @@ public class Launcher extends Activity
         // TODO
     }
 
-    /**
-     * Hides the hotseat area.
-     */
-    void hideHotseat(boolean animated) {
-        if (!LauncherAppState.getInstance().isScreenLarge()) {
-            if (animated) {
-                if (mHotseat.getAlpha() != 0f) {
-                    int duration = 0;
-                    if (mSearchDropTargetBar != null) {
-                        duration = mSearchDropTargetBar.getTransitionOutDuration();
-                    }
-                    mHotseat.animate().alpha(0f).setDuration(duration);
-                }
-            } else {
-                mHotseat.setAlpha(0f);
-            }
-        }
-    }
-
-    /**
-     * Add an item from all apps or customize onto the given workspace screen.
-     * If layout is null, add to the current screen.
-     */
-    void addExternalItemToScreen(ItemInfo itemInfo, final CellLayout layout) {
-        if (!mWorkspace.addExternalItemToScreen(itemInfo, layout)) {
-            showOutOfSpaceMessage(isHotseatLayout(layout));
-        }
-    }
-
-    /** Maps the current orientation to an index for referencing orientation correct global icons */
-    private int getCurrentOrientationIndexForGlobalIcons() {
-        // default - 0, landscape - 1
-        switch (getResources().getConfiguration().orientation) {
-        case Configuration.ORIENTATION_LANDSCAPE:
-            return 1;
-        default:
-            return 0;
-        }
-    }
-
-    private Drawable getExternalPackageToolbarIcon(ComponentName activityName, String resourceName) {
-        try {
-            PackageManager packageManager = getPackageManager();
-            // Look for the toolbar icon specified in the activity meta-data
-            Bundle metaData = packageManager.getActivityInfo(
-                    activityName, PackageManager.GET_META_DATA).metaData;
-            if (metaData != null) {
-                int iconResId = metaData.getInt(resourceName);
-                if (iconResId != 0) {
-                    Resources res = packageManager.getResourcesForActivity(activityName);
-                    return res.getDrawable(iconResId);
-                }
-            }
-        } catch (NameNotFoundException e) {
-            // This can happen if the activity defines an invalid drawable
-            Log.w(TAG, "Failed to load toolbar icon; " + activityName.flattenToShortString() +
-                    " not found", e);
-        } catch (Resources.NotFoundException nfe) {
-            // This can happen if the activity defines an invalid drawable
-            Log.w(TAG, "Failed to load toolbar icon from " + activityName.flattenToShortString(),
-                    nfe);
-        }
-        return null;
-    }
-
-    // if successful in getting icon, return it; otherwise, set button to use default drawable
-    private Drawable.ConstantState updateTextButtonWithIconFromExternalActivity(
-            int buttonId, ComponentName activityName, int fallbackDrawableId,
-            String toolbarResourceName) {
-        Drawable toolbarIcon = getExternalPackageToolbarIcon(activityName, toolbarResourceName);
-        Resources r = getResources();
-        int w = r.getDimensionPixelSize(R.dimen.toolbar_external_icon_width);
-        int h = r.getDimensionPixelSize(R.dimen.toolbar_external_icon_height);
-
-        TextView button = (TextView) findViewById(buttonId);
-        // If we were unable to find the icon via the meta-data, use a generic one
-        if (toolbarIcon == null) {
-            toolbarIcon = r.getDrawable(fallbackDrawableId);
-            toolbarIcon.setBounds(0, 0, w, h);
-            if (button != null) {
-                button.setCompoundDrawables(toolbarIcon, null, null, null);
-            }
-            return null;
-        } else {
-            toolbarIcon.setBounds(0, 0, w, h);
-            if (button != null) {
-                button.setCompoundDrawables(toolbarIcon, null, null, null);
-            }
-            return toolbarIcon.getConstantState();
-        }
-    }
-
-    // if successful in getting icon, return it; otherwise, set button to use default drawable
-    private Drawable.ConstantState updateButtonWithIconFromExternalActivity(
-            int buttonId, ComponentName activityName, int fallbackDrawableId,
-            String toolbarResourceName) {
-        ImageView button = (ImageView) findViewById(buttonId);
-        Drawable toolbarIcon = getExternalPackageToolbarIcon(activityName, toolbarResourceName);
-
-        if (button != null) {
-            // If we were unable to find the icon via the meta-data, use a
-            // generic one
-            if (toolbarIcon == null) {
-                button.setImageResource(fallbackDrawableId);
-            } else {
-                button.setImageDrawable(toolbarIcon);
-            }
-        }
-
-        return toolbarIcon != null ? toolbarIcon.getConstantState() : null;
-
-    }
-
-    private void updateTextButtonWithDrawable(int buttonId, Drawable d) {
-        TextView button = (TextView) findViewById(buttonId);
-        button.setCompoundDrawables(d, null, null, null);
-    }
-
-    private void updateButtonWithDrawable(int buttonId, Drawable.ConstantState d) {
-        ImageView button = (ImageView) findViewById(buttonId);
-        button.setImageDrawable(d.newDrawable(getResources()));
-    }
-
-    private void invalidatePressedFocusedStates(View container, View button) {
-        if (container instanceof HolographicLinearLayout) {
-            HolographicLinearLayout layout = (HolographicLinearLayout) container;
-            layout.invalidatePressedFocusedStates();
-        } else if (button instanceof HolographicImageView) {
-            HolographicImageView view = (HolographicImageView) button;
-            view.invalidatePressedFocusedStates();
-        }
+    protected void disableVoiceButtonProxy(boolean disable) {
+        // NO-OP
     }
 
     public View getQsbBar() {
@@ -4171,138 +3955,52 @@ public class Launcher extends Activity
         }
 
         if (mQsb == null) {
-            mQsb = mInflater.inflate(R.layout.qsb, mSearchDropTargetBar, false);
-            mSearchDropTargetBar.addView(mQsb);
-        }
-        return mQsb;
-    }
-
-    protected boolean updateGlobalSearchIcon() {
-        if (mLauncherCallbacks != null && mLauncherCallbacks.providesSearch()) {
-            return true;
-        }
-
-        final View searchButtonContainer = findViewById(R.id.search_button_container);
-        final ImageView searchButton = (ImageView) findViewById(R.id.search_button);
-        final View voiceButtonContainer = findViewById(R.id.voice_button_container);
-        final View voiceButton = findViewById(R.id.voice_button);
-
-        final SearchManager searchManager =
-                (SearchManager) getSystemService(Context.SEARCH_SERVICE);
-        ComponentName activityName = searchManager.getGlobalSearchActivity();
-        if (activityName != null) {
-            int coi = getCurrentOrientationIndexForGlobalIcons();
-            sGlobalSearchIcon[coi] = updateButtonWithIconFromExternalActivity(
-                    R.id.search_button, activityName, R.drawable.ic_home_search_normal_holo,
-                    TOOLBAR_SEARCH_ICON_METADATA_NAME);
-            if (sGlobalSearchIcon[coi] == null) {
-                sGlobalSearchIcon[coi] = updateButtonWithIconFromExternalActivity(
-                        R.id.search_button, activityName, R.drawable.ic_home_search_normal_holo,
-                        TOOLBAR_ICON_METADATA_NAME);
+            AppWidgetProviderInfo searchProvider = Utilities.getSearchWidgetProvider(this);
+            if (searchProvider == null) {
+                return null;
             }
 
-            if (searchButtonContainer != null) searchButtonContainer.setVisibility(View.VISIBLE);
-            searchButton.setVisibility(View.VISIBLE);
-            invalidatePressedFocusedStates(searchButtonContainer, searchButton);
-            return true;
-        } else {
-            // We disable both search and voice search when there is no global search provider
-            if (searchButtonContainer != null) searchButtonContainer.setVisibility(View.GONE);
-            if (voiceButtonContainer != null) voiceButtonContainer.setVisibility(View.GONE);
-            if (searchButton != null) searchButton.setVisibility(View.GONE);
-            if (voiceButton != null) voiceButton.setVisibility(View.GONE);
-            updateVoiceButtonProxyVisible(false);
-            return false;
-        }
-    }
+            Bundle opts = new Bundle();
+            opts.putInt(AppWidgetManager.OPTION_APPWIDGET_HOST_CATEGORY,
+                    AppWidgetProviderInfo.WIDGET_CATEGORY_SEARCHBOX);
+
+            SharedPreferences sp = getSharedPreferences(
+                    LauncherAppState.getSharedPreferencesKey(), MODE_PRIVATE);
+            int widgetId = sp.getInt(QSB_WIDGET_ID, -1);
+            if (!searchProvider.provider.flattenToString().equals(
+                    sp.getString(QSB_WIDGET_PROVIDER, null))
+                    || (widgetId == -1)
+                    || !mAppWidgetManager.getAppWidgetInfo(widgetId).provider
+                        .equals(searchProvider.provider)) {
+                // A valid widget is not already bound.
+                if (widgetId > -1) {
+                    mAppWidgetHost.deleteAppWidgetId(widgetId);
+                    widgetId = -1;
+                }
 
-    protected void updateGlobalSearchIcon(Drawable.ConstantState d) {
-        if (mLauncherCallbacks != null && mLauncherCallbacks.providesSearch()) return;
-        final View searchButtonContainer = findViewById(R.id.search_button_container);
-        final View searchButton = (ImageView) findViewById(R.id.search_button);
-        updateButtonWithDrawable(R.id.search_button, d);
-        invalidatePressedFocusedStates(searchButtonContainer, searchButton);
-    }
+                // Try to bind a new widget
+                widgetId = mAppWidgetHost.allocateAppWidgetId();
 
-    protected boolean updateVoiceSearchIcon(boolean searchVisible) {
-        if (mLauncherCallbacks != null && mLauncherCallbacks.providesSearch()) {
-            return true;
-        }
-        final View voiceButtonContainer = findViewById(R.id.voice_button_container);
-        final View voiceButton = findViewById(R.id.voice_button);
-
-        // We only show/update the voice search icon if the search icon is enabled as well
-        final SearchManager searchManager =
-                (SearchManager) getSystemService(Context.SEARCH_SERVICE);
-        ComponentName globalSearchActivity = searchManager.getGlobalSearchActivity();
+                if (!AppWidgetManagerCompat.getInstance(this)
+                        .bindAppWidgetIdIfAllowed(widgetId, searchProvider, opts)) {
+                    mAppWidgetHost.deleteAppWidgetId(widgetId);
+                    widgetId = -1;
+                }
 
-        ComponentName activityName = null;
-        if (globalSearchActivity != null) {
-            // Check if the global search activity handles voice search
-            Intent intent = new Intent(RecognizerIntent.ACTION_WEB_SEARCH);
-            intent.setPackage(globalSearchActivity.getPackageName());
-            activityName = intent.resolveActivity(getPackageManager());
-        }
-
-        if (activityName == null) {
-            // Fallback: check if an activity other than the global search activity
-            // resolves this
-            Intent intent = new Intent(RecognizerIntent.ACTION_WEB_SEARCH);
-            activityName = intent.resolveActivity(getPackageManager());
-        }
-        if (searchVisible && activityName != null) {
-            int coi = getCurrentOrientationIndexForGlobalIcons();
-            sVoiceSearchIcon[coi] = updateButtonWithIconFromExternalActivity(
-                    R.id.voice_button, activityName, R.drawable.ic_home_voice_search_holo,
-                    TOOLBAR_VOICE_SEARCH_ICON_METADATA_NAME);
-            if (sVoiceSearchIcon[coi] == null) {
-                sVoiceSearchIcon[coi] = updateButtonWithIconFromExternalActivity(
-                        R.id.voice_button, activityName, R.drawable.ic_home_voice_search_holo,
-                        TOOLBAR_ICON_METADATA_NAME);
+                sp.edit()
+                    .putInt(QSB_WIDGET_ID, widgetId)
+                    .putString(QSB_WIDGET_PROVIDER, searchProvider.provider.flattenToString())
+                    .commit();
             }
-            if (voiceButtonContainer != null) voiceButtonContainer.setVisibility(View.VISIBLE);
-            voiceButton.setVisibility(View.VISIBLE);
-            updateVoiceButtonProxyVisible(false);
-            invalidatePressedFocusedStates(voiceButtonContainer, voiceButton);
-            return true;
-        } else {
-            if (voiceButtonContainer != null) voiceButtonContainer.setVisibility(View.GONE);
-            if (voiceButton != null) voiceButton.setVisibility(View.GONE);
-            updateVoiceButtonProxyVisible(false);
-            return false;
-        }
-    }
 
-    protected void updateVoiceSearchIcon(Drawable.ConstantState d) {
-        if (mLauncherCallbacks != null && mLauncherCallbacks.providesSearch()) {
-            return;
-        }
-
-        final View voiceButtonContainer = findViewById(R.id.voice_button_container);
-        final View voiceButton = findViewById(R.id.voice_button);
-        updateButtonWithDrawable(R.id.voice_button, d);
-        invalidatePressedFocusedStates(voiceButtonContainer, voiceButton);
-    }
-
-    public void updateVoiceButtonProxyVisible(boolean forceDisableVoiceButtonProxy) {
-        if (mLauncherCallbacks != null) {
-            forceDisableVoiceButtonProxy |= mLauncherCallbacks.forceDisableVoiceButtonProxy();
-        }
-        final View voiceButtonProxy = findViewById(R.id.voice_button_proxy);
-        if (voiceButtonProxy != null) {
-            boolean visible = !forceDisableVoiceButtonProxy &&
-                    mWorkspace.shouldVoiceButtonProxyBeVisible();
-            voiceButtonProxy.setVisibility(visible ? View.VISIBLE : View.GONE);
-            voiceButtonProxy.bringToFront();
+            if (widgetId != -1) {
+                mQsb = mAppWidgetHost.createView(this, widgetId, searchProvider);
+                mQsb.updateAppWidgetOptions(opts);
+                mQsb.setPadding(0, 0, 0, 0);
+                mSearchDropTargetBar.addView(mQsb);
+            }
         }
-    }
-
-    /**
-     * This is an overrid eot disable the voice button proxy.  If disabled is true, then the voice button proxy
-     * will be hidden regardless of what shouldVoiceButtonProxyBeVisible() returns.
-     */
-    public void disableVoiceButtonProxy(boolean disabled) {
-        updateVoiceButtonProxyVisible(disabled);
+        return mQsb;
     }
 
     @Override
@@ -4883,13 +4581,15 @@ public class Launcher extends Activity
                 getDeviceProfile().getSearchBarBounds();
     }
 
-    @Override
     public void bindSearchablesChanged() {
-        boolean searchVisible = updateGlobalSearchIcon();
-        boolean voiceVisible = updateVoiceSearchIcon(searchVisible);
-        if (mSearchDropTargetBar != null) {
-            mSearchDropTargetBar.onSearchPackagesChanged(searchVisible, voiceVisible);
+        if (mSearchDropTargetBar == null) {
+            return;
+        }
+        if (mQsb != null) {
+            mSearchDropTargetBar.removeView(mQsb);
+            mQsb = null;
         }
+        mSearchDropTargetBar.setQsbSearchBar(getQsbBar());
     }
 
     /**