Restore switch for showing app icon.

Bug: 20307420
Change-Id: I95969de40936d2ea992669324d0c4df7e8de2bd9

java/res/values/strings.xml

@@ -433,6 +433,10 @@ mobile devices. [CHAR LIMIT=25] -->
     <string name="setup_step3_action">Configure additional languages</string>
     <!-- The label of the button that finishes the setup wizard. [CHAR_LIMIT=64] -->
     <string name="setup_finish_action">Finished</string>
+    <!-- Option to show setup wizard icon. [CHAR LIMIT=30]-->
+    <string name="show_setup_wizard_icon">Show app icon</string>
+    <!-- Description for the option to show setup wizard application icon of this IME in the laucher. [CHAR_LIMIT=65] -->
+    <string name="show_setup_wizard_icon_summary">Display application icon in the launcher</string>
 
     <!-- The dictionary provider application name. Visible in Settings/Applications/Manage applications. -->
     <string name="app_name">Dictionary Provider</string>

java/res/xml/prefs_screen_advanced.xml

@@ -43,6 +43,11 @@
         android:summary="@string/prefs_enable_emoji_alt_physical_key_summary"
         android:defaultValue="true"
         android:persistent="true" />
+    <CheckBoxPreference
+        android:key="pref_show_setup_wizard_icon"
+        android:title="@string/show_setup_wizard_icon"
+        android:summary="@string/show_setup_wizard_icon_summary"
+        android:persistent="true" />
     <PreferenceScreen
         android:fragment="com.android.inputmethod.latin.settings.DebugSettingsFragment"
         android:key="screen_debug"

java/src/com/android/inputmethod/latin/SystemBroadcastReceiver.java

@@ -20,9 +20,11 @@ import android.content.BroadcastReceiver;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
+import android.content.SharedPreferences;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
 import android.os.Process;
+import android.preference.PreferenceManager;
 import android.util.Log;
 import android.view.inputmethod.InputMethodManager;
 import android.view.inputmethod.InputMethodSubtype;
@@ -30,6 +32,7 @@ import android.view.inputmethod.InputMethodSubtype;
 import com.android.inputmethod.dictionarypack.CommonPreferences;
 import com.android.inputmethod.dictionarypack.DictionaryPackConstants;
 import com.android.inputmethod.keyboard.KeyboardLayoutSet;
+import com.android.inputmethod.latin.settings.Settings;
 import com.android.inputmethod.latin.setup.SetupActivity;
 import com.android.inputmethod.latin.utils.UncachedInputMethodManagerUtils;
 
@@ -112,11 +115,12 @@ public final class SystemBroadcastReceiver extends BroadcastReceiver {
         if (Log.isLoggable(TAG, Log.INFO)) {
             Log.i(TAG, "toggleAppIcon() : FLAG_SYSTEM = " + isSystemApp);
         }
+        final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
         context.getPackageManager().setComponentEnabledSetting(
                 new ComponentName(context, SetupActivity.class),
-                isSystemApp
+                Settings.readShowSetupWizardIcon(prefs, context)
-                        ? PackageManager.COMPONENT_ENABLED_STATE_DISABLED
+                        ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED
-                        : PackageManager.COMPONENT_ENABLED_STATE_ENABLED,
+                        : PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
                 PackageManager.DONT_KILL_APP);
     }
 }

java/src/com/android/inputmethod/latin/settings/Settings.java

@@ -18,6 +18,7 @@ package com.android.inputmethod.latin.settings;
 
 import android.content.Context;
 import android.content.SharedPreferences;
+import android.content.pm.ApplicationInfo;
 import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.os.Build;
@@ -93,6 +94,7 @@ public final class Settings implements SharedPreferences.OnSharedPreferenceChang
     public static final String PREF_GESTURE_PREVIEW_TRAIL = "pref_gesture_preview_trail";
     public static final String PREF_GESTURE_FLOATING_PREVIEW_TEXT =
             "pref_gesture_floating_preview_text";
+    public static final String PREF_SHOW_SETUP_WIZARD_ICON = "pref_show_setup_wizard_icon";
 
     public static final String PREF_KEY_IS_INTERNAL = "pref_key_is_internal";
 
@@ -350,6 +352,18 @@ public final class Settings implements SharedPreferences.OnSharedPreferenceChang
         return res.getBoolean(R.bool.config_use_fullscreen_mode);
     }
 
+    public static boolean readShowSetupWizardIcon(final SharedPreferences prefs,
+            final Context context) {
+        if (!prefs.contains(PREF_SHOW_SETUP_WIZARD_ICON)) {
+            final ApplicationInfo appInfo = context.getApplicationInfo();
+            final boolean isApplicationInSystemImage =
+                    (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
+            // Default value
+            return !isApplicationInSystemImage;
+        }
+        return prefs.getBoolean(PREF_SHOW_SETUP_WIZARD_ICON, false);
+    }
+
     public static boolean readHasHardwareKeyboard(final Configuration conf) {
         // The standard way of finding out whether we have a hardware keyboard. This code is taken
         // from InputMethodService#onEvaluateInputShown, which canonically determines this.

java/src/com/android/inputmethod/latin/settings/SettingsValues.java

@@ -81,6 +81,8 @@ public class SettingsValues {
     public final boolean mSlidingKeyInputPreviewEnabled;
     public final int mKeyLongpressTimeout;
     public final boolean mEnableEmojiAltPhysicalKey;
+    public final boolean mShowAppIcon;
+    public final boolean mIsShowAppIconSettingInPreferences;
     public final boolean mCloudSyncEnabled;
     public final boolean mEnableMetricsLogging;
     public final boolean mShouldShowLxxSuggestionUi;
@@ -168,6 +170,8 @@ public class SettingsValues {
         mKeyPreviewPopupDismissDelay = Settings.readKeyPreviewPopupDismissDelay(prefs, res);
         mEnableEmojiAltPhysicalKey = prefs.getBoolean(
                 Settings.PREF_ENABLE_EMOJI_ALT_PHYSICAL_KEY, true);
+        mShowAppIcon = Settings.readShowSetupWizardIcon(prefs, context);
+        mIsShowAppIconSettingInPreferences = prefs.contains(Settings.PREF_SHOW_SETUP_WIZARD_ICON);
         mAutoCorrectionThreshold = readAutoCorrectionThreshold(res,
                 autoCorrectionThresholdRawValue);
         mPlausibilityThreshold = Settings.readPlausibilityThreshold(res);