| // Copyright 2010-2014, Google Inc. |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| package org.mozc.android.inputmethod.japanese.util; |
| |
| import org.mozc.android.inputmethod.japanese.LauncherActivity; |
| import org.mozc.android.inputmethod.japanese.MozcUtil; |
| import org.mozc.android.inputmethod.japanese.preference.PreferenceUtil; |
| import com.google.common.annotations.VisibleForTesting; |
| import com.google.common.base.Preconditions; |
| |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.SharedPreferences; |
| import android.content.pm.PackageManager; |
| import android.preference.PreferenceManager; |
| |
| /** |
| * Manager of launcher icon's visibility. |
| */ |
| public class LauncherIconManagerFactory { |
| |
| /** |
| * Interface for the manager. |
| */ |
| public interface LauncherIconManager { |
| /** |
| * Updates launcher icon's visibility by checking the value in preferences or |
| * by checking whether the app is (updated) system application or not. |
| * |
| * @param context The application's context. |
| */ |
| public void updateLauncherIconVisibility(Context context); |
| } |
| |
| @VisibleForTesting |
| static class DefaultImplementation implements LauncherIconManager { |
| |
| @Override |
| public void updateLauncherIconVisibility(Context context) { |
| Preconditions.checkNotNull(context); |
| SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context); |
| boolean visible = shouldLauncherIconBeVisible(context, sharedPreferences); |
| updateComponentEnableSetting(context, LauncherActivity.class, visible); |
| sharedPreferences.edit() |
| .putBoolean(PreferenceUtil.PREF_LAUNCHER_ICON_VISIBILITY_KEY, visible) |
| .apply(); |
| } |
| |
| /** |
| * Enables/disables component. |
| * |
| * @param context The application's context |
| * @param component The component to be enabled/disabled |
| * @param enabled true for enabled, false for disabled |
| */ |
| private void updateComponentEnableSetting( |
| Context context, Class<?> component, boolean enabled) { |
| Preconditions.checkNotNull(context); |
| Preconditions.checkNotNull(component); |
| PackageManager packageManager = context.getPackageManager(); |
| ComponentName componentName = new ComponentName(context.getApplicationContext(), component); |
| int newState = enabled ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED |
| : PackageManager.COMPONENT_ENABLED_STATE_DISABLED; |
| if (newState != packageManager.getComponentEnabledSetting(componentName)) { |
| packageManager.setComponentEnabledSetting( |
| componentName, newState, PackageManager.DONT_KILL_APP); |
| } |
| } |
| |
| @VisibleForTesting |
| static boolean shouldLauncherIconBeVisible(Context context, |
| SharedPreferences sharedPreferences) { |
| // NOTE: Both flags below can be true at the same time. |
| boolean isSystemApplication = MozcUtil.isSystemApplication(context); |
| boolean isUpdatedSystemApplication = MozcUtil.isUpdatedSystemApplication(context); |
| if (sharedPreferences.contains(PreferenceUtil.PREF_LAUNCHER_ICON_VISIBILITY_KEY)) { |
| return sharedPreferences.getBoolean( |
| PreferenceUtil.PREF_LAUNCHER_ICON_VISIBILITY_KEY, true); |
| } else { |
| // If PREF_LAUNCHER_ICON_VISIBILITY_KEY is not set, we don't show launcher icon in |
| // following conditions: |
| if (isSystemApplication && !isUpdatedSystemApplication) { |
| // System app (not updated) doesn't show the icon. |
| return false; |
| } |
| if (isUpdatedSystemApplication |
| && sharedPreferences.contains( |
| PreferenceUtil.PREF_LAST_LAUNCH_ABI_INDEPENDENT_VERSION_CODE)) { |
| // Workaround for updated system app from preinstalled 2.16.1955.3. |
| // Preinstalled 2.16.1955.3 doesn't put PREF_LAUNCHER_ICON_VISIBILITY_KEY |
| // unless preference screen is shown so checking PREF_LAUNCHER_ICON_VISIBILITY_KEY |
| // doesn't work for the version. |
| // However PREF_LAST_LAUNCH_ABI_INDEPENDENT_VERSION_CODE is always written, |
| // use the preference instaed. |
| // If the preference exists, this means the IME has been launched as a preinstall |
| // app at least once. |
| // Therefore we should take over the visibility (== hide the icon). |
| return false; |
| } |
| return true; |
| } |
| } |
| } |
| |
| private static LauncherIconManager defaultInstance = new DefaultImplementation(); |
| |
| private LauncherIconManagerFactory() {} |
| |
| public static LauncherIconManager getDefaultInstance() { |
| return defaultInstance; |
| } |
| } |