src/com/android/settings/inputmethod/SpellCheckersSettings.java - LeafOS-Project/android_packages_apps_Settings - Gitiles

 /*
  * Copyright (C) 2011 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 package com.android.settings.inputmethod;

 import android.app.settings.SettingsEnums;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.pm.ApplicationInfo;
 import android.os.Bundle;
 import android.provider.Settings;
 import android.util.Log;
 import android.view.textservice.SpellCheckerInfo;
 import android.view.textservice.SpellCheckerSubtype;
 import android.view.textservice.TextServicesManager;
 import android.widget.Switch;

 import androidx.appcompat.app.AlertDialog;
 import androidx.preference.Preference;
 import androidx.preference.Preference.OnPreferenceChangeListener;
 import androidx.preference.Preference.OnPreferenceClickListener;
 import androidx.preference.PreferenceScreen;

 import com.android.settings.R;
 import com.android.settings.SettingsActivity;
 import com.android.settings.SettingsPreferenceFragment;
 import com.android.settings.widget.SwitchBar;
 import com.android.settings.widget.SwitchBar.OnSwitchChangeListener;

 public class SpellCheckersSettings extends SettingsPreferenceFragment
         implements OnSwitchChangeListener, OnPreferenceClickListener, OnPreferenceChangeListener {
     private static final String TAG = SpellCheckersSettings.class.getSimpleName();
     private static final boolean DBG = false;

     private static final String KEY_SPELL_CHECKER_LANGUAGE = "spellchecker_language";
     private static final String KEY_DEFAULT_SPELL_CHECKER = "default_spellchecker";
     private static final int ITEM_ID_USE_SYSTEM_LANGUAGE = 0;

     private SwitchBar mSwitchBar;
     private Preference mSpellCheckerLanaguagePref;
     private AlertDialog mDialog = null;
     private SpellCheckerInfo mCurrentSci;
     private SpellCheckerInfo[] mEnabledScis;
     private TextServicesManager mTsm;

     @Override
     public int getMetricsCategory() {
         return SettingsEnums.INPUTMETHOD_SPELL_CHECKERS;
     }

     @Override
     public void onCreate(final Bundle icicle) {
         super.onCreate(icicle);

         addPreferencesFromResource(R.xml.spellchecker_prefs);
         mSpellCheckerLanaguagePref = findPreference(KEY_SPELL_CHECKER_LANGUAGE);
         mSpellCheckerLanaguagePref.setOnPreferenceClickListener(this);

         mTsm = (TextServicesManager) getSystemService(Context.TEXT_SERVICES_MANAGER_SERVICE);
         mCurrentSci = mTsm.getCurrentSpellChecker();
         mEnabledScis = mTsm.getEnabledSpellCheckers();
         populatePreferenceScreen();
     }

     private void populatePreferenceScreen() {
         final SpellCheckerPreference pref = new SpellCheckerPreference(getPrefContext(),
                 mEnabledScis);
         pref.setTitle(R.string.default_spell_checker);
         final int count = (mEnabledScis == null) ? 0 : mEnabledScis.length;
         if (count > 0) {
             pref.setSummary("%s");
         } else {
             pref.setSummary(R.string.spell_checker_not_selected);
         }
         pref.setKey(KEY_DEFAULT_SPELL_CHECKER);
         pref.setOnPreferenceChangeListener(this);
         getPreferenceScreen().addPreference(pref);
     }

     @Override
     public void onResume() {
         super.onResume();
         mSwitchBar = ((SettingsActivity) getActivity()).getSwitchBar();
         mSwitchBar.setSwitchBarText(
                 R.string.spell_checker_master_switch_title,
                 R.string.spell_checker_master_switch_title);
         mSwitchBar.show();
         mSwitchBar.addOnSwitchChangeListener(this);
         updatePreferenceScreen();
     }

     @Override
     public void onPause() {
         super.onPause();
         mSwitchBar.removeOnSwitchChangeListener(this);
     }

     @Override
     public void onSwitchChanged(final Switch switchView, final boolean isChecked) {
         Settings.Secure.putInt(getContentResolver(), Settings.Secure.SPELL_CHECKER_ENABLED,
                 isChecked ? 1 : 0);
         updatePreferenceScreen();
     }

     private void updatePreferenceScreen() {
         mCurrentSci = mTsm.getCurrentSpellChecker();
         final boolean isSpellCheckerEnabled = mTsm.isSpellCheckerEnabled();
         mSwitchBar.setChecked(isSpellCheckerEnabled);

         final SpellCheckerSubtype currentScs;
         if (mCurrentSci != null) {
             currentScs = mTsm.getCurrentSpellCheckerSubtype(
                     false /* allowImplicitlySelectedSubtype */);
         } else {
             currentScs = null;
         }
         mSpellCheckerLanaguagePref.setSummary(getSpellCheckerSubtypeLabel(mCurrentSci, currentScs));

         final PreferenceScreen screen = getPreferenceScreen();
         final int count = screen.getPreferenceCount();
         for (int index = 0; index < count; index++) {
             final Preference preference = screen.getPreference(index);
             preference.setEnabled(isSpellCheckerEnabled);
             if (preference instanceof SpellCheckerPreference) {
                 final SpellCheckerPreference pref = (SpellCheckerPreference) preference;
                 pref.setSelected(mCurrentSci);
             }
         }
         mSpellCheckerLanaguagePref.setEnabled(isSpellCheckerEnabled && mCurrentSci != null);
     }

     private CharSequence getSpellCheckerSubtypeLabel(final SpellCheckerInfo sci,
             final SpellCheckerSubtype subtype) {
         if (sci == null) {
             return getString(R.string.spell_checker_not_selected);
         }
         if (subtype == null) {
             return getString(R.string.use_system_language_to_select_input_method_subtypes);
         }
         return subtype.getDisplayName(
                 getActivity(), sci.getPackageName(), sci.getServiceInfo().applicationInfo);
     }

     @Override
     public boolean onPreferenceClick(final Preference pref) {
         if (pref == mSpellCheckerLanaguagePref) {
             showChooseLanguageDialog();
             return true;
         }
         return false;
     }

     @Override
     public boolean onPreferenceChange(Preference preference, Object newValue) {
         final SpellCheckerInfo sci = (SpellCheckerInfo) newValue;
         final boolean isSystemApp =
                 (sci.getServiceInfo().applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
         if (isSystemApp) {
             changeCurrentSpellChecker(sci);
             return true;
         } else {
             showSecurityWarnDialog(sci);
             return false;
         }
     }

     private static int convertSubtypeIndexToDialogItemId(final int index) {
         return index + 1;
     }

     private static int convertDialogItemIdToSubtypeIndex(final int item) {
         return item - 1;
     }

     private void showChooseLanguageDialog() {
         if (mDialog != null && mDialog.isShowing()) {
             mDialog.dismiss();
         }
         final SpellCheckerInfo currentSci = mTsm.getCurrentSpellChecker();
         if (currentSci == null) {
             // This can happen in some situations.  One example is that the package that the current
             // spell checker belongs to was uninstalled or being in background.
             return;
         }
         final SpellCheckerSubtype currentScs = mTsm.getCurrentSpellCheckerSubtype(
                 false /* allowImplicitlySelectedSubtype */);
         final AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
         builder.setTitle(R.string.phone_language);
         final int subtypeCount = currentSci.getSubtypeCount();
         final CharSequence[] items = new CharSequence[subtypeCount + 1 /* default */];
         items[ITEM_ID_USE_SYSTEM_LANGUAGE] = getSpellCheckerSubtypeLabel(currentSci, null);
         int checkedItemId = ITEM_ID_USE_SYSTEM_LANGUAGE;
         for (int index = 0; index < subtypeCount; ++index) {
             final SpellCheckerSubtype subtype = currentSci.getSubtypeAt(index);
             final int itemId = convertSubtypeIndexToDialogItemId(index);
             items[itemId] = getSpellCheckerSubtypeLabel(currentSci, subtype);
             if (subtype.equals(currentScs)) {
                 checkedItemId = itemId;
             }
         }
         builder.setSingleChoiceItems(items, checkedItemId, new AlertDialog.OnClickListener() {
             @Override
             public void onClick(final DialogInterface dialog, final int item) {
                 final int subtypeId;
                 if (item == ITEM_ID_USE_SYSTEM_LANGUAGE) {
                     subtypeId = SpellCheckerSubtype.SUBTYPE_ID_NONE;
                 } else {
                     final int index = convertDialogItemIdToSubtypeIndex(item);
                     subtypeId = currentSci.getSubtypeAt(index).hashCode();
                 }

                 Settings.Secure.putInt(getContentResolver(),
                         Settings.Secure.SELECTED_SPELL_CHECKER_SUBTYPE, subtypeId);

                 if (DBG) {
                     final SpellCheckerSubtype subtype = mTsm.getCurrentSpellCheckerSubtype(
                             true /* allowImplicitlySelectedSubtype */);
                     Log.d(TAG, "Current spell check locale is "
                             + subtype == null ? "null" : subtype.getLocale());
                 }
                 dialog.dismiss();
                 updatePreferenceScreen();
             }
         });
         mDialog = builder.create();
         mDialog.show();
     }

     private void showSecurityWarnDialog(final SpellCheckerInfo sci) {
         if (mDialog != null && mDialog.isShowing()) {
             mDialog.dismiss();
         }
         final AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
         builder.setTitle(android.R.string.dialog_alert_title);
         builder.setMessage(getString(R.string.spellchecker_security_warning,
                 sci.loadLabel(getPackageManager())));
         builder.setCancelable(true);
         builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
             @Override
             public void onClick(final DialogInterface dialog, final int which) {
                 changeCurrentSpellChecker(sci);
             }
         });
         builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
             @Override
             public void onClick(final DialogInterface dialog, final int which) {
             }
         });
         mDialog = builder.create();
         mDialog.show();
     }

     private void changeCurrentSpellChecker(final SpellCheckerInfo sci) {
         Settings.Secure.putString(getContentResolver(), Settings.Secure.SELECTED_SPELL_CHECKER,
                 sci.getId());
         // Reset the spell checker subtype
         Settings.Secure.putInt(getContentResolver(), Settings.Secure.SELECTED_SPELL_CHECKER_SUBTYPE,
                 SpellCheckerSubtype.SUBTYPE_ID_NONE);
         if (DBG) {
             Log.d(TAG, "Current spell check is " + mTsm.getCurrentSpellChecker().getId());
         }
         updatePreferenceScreen();
     }
 }
	/*
	* Copyright (C) 2011 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	package com.android.settings.inputmethod;

	import android.app.settings.SettingsEnums;
	import android.content.Context;
	import android.content.DialogInterface;
	import android.content.pm.ApplicationInfo;
	import android.os.Bundle;
	import android.provider.Settings;
	import android.util.Log;
	import android.view.textservice.SpellCheckerInfo;
	import android.view.textservice.SpellCheckerSubtype;
	import android.view.textservice.TextServicesManager;
	import android.widget.Switch;

	import androidx.appcompat.app.AlertDialog;
	import androidx.preference.Preference;
	import androidx.preference.Preference.OnPreferenceChangeListener;
	import androidx.preference.Preference.OnPreferenceClickListener;
	import androidx.preference.PreferenceScreen;

	import com.android.settings.R;
	import com.android.settings.SettingsActivity;
	import com.android.settings.SettingsPreferenceFragment;
	import com.android.settings.widget.SwitchBar;
	import com.android.settings.widget.SwitchBar.OnSwitchChangeListener;

	public class SpellCheckersSettings extends SettingsPreferenceFragment
	implements OnSwitchChangeListener, OnPreferenceClickListener, OnPreferenceChangeListener {
	private static final String TAG = SpellCheckersSettings.class.getSimpleName();
	private static final boolean DBG = false;

	private static final String KEY_SPELL_CHECKER_LANGUAGE = "spellchecker_language";
	private static final String KEY_DEFAULT_SPELL_CHECKER = "default_spellchecker";
	private static final int ITEM_ID_USE_SYSTEM_LANGUAGE = 0;

	private SwitchBar mSwitchBar;
	private Preference mSpellCheckerLanaguagePref;
	private AlertDialog mDialog = null;
	private SpellCheckerInfo mCurrentSci;
	private SpellCheckerInfo[] mEnabledScis;
	private TextServicesManager mTsm;

	@Override
	public int getMetricsCategory() {
	return SettingsEnums.INPUTMETHOD_SPELL_CHECKERS;
	}

	@Override
	public void onCreate(final Bundle icicle) {
	super.onCreate(icicle);

	addPreferencesFromResource(R.xml.spellchecker_prefs);
	mSpellCheckerLanaguagePref = findPreference(KEY_SPELL_CHECKER_LANGUAGE);
	mSpellCheckerLanaguagePref.setOnPreferenceClickListener(this);

	mTsm = (TextServicesManager) getSystemService(Context.TEXT_SERVICES_MANAGER_SERVICE);
	mCurrentSci = mTsm.getCurrentSpellChecker();
	mEnabledScis = mTsm.getEnabledSpellCheckers();
	populatePreferenceScreen();
	}

	private void populatePreferenceScreen() {
	final SpellCheckerPreference pref = new SpellCheckerPreference(getPrefContext(),
	mEnabledScis);
	pref.setTitle(R.string.default_spell_checker);
	final int count = (mEnabledScis == null) ? 0 : mEnabledScis.length;
	if (count > 0) {
	pref.setSummary("%s");
	} else {
	pref.setSummary(R.string.spell_checker_not_selected);
	}
	pref.setKey(KEY_DEFAULT_SPELL_CHECKER);
	pref.setOnPreferenceChangeListener(this);
	getPreferenceScreen().addPreference(pref);
	}

	@Override
	public void onResume() {
	super.onResume();
	mSwitchBar = ((SettingsActivity) getActivity()).getSwitchBar();
	mSwitchBar.setSwitchBarText(
	R.string.spell_checker_master_switch_title,
	R.string.spell_checker_master_switch_title);
	mSwitchBar.show();
	mSwitchBar.addOnSwitchChangeListener(this);
	updatePreferenceScreen();
	}

	@Override
	public void onPause() {
	super.onPause();
	mSwitchBar.removeOnSwitchChangeListener(this);
	}

	@Override
	public void onSwitchChanged(final Switch switchView, final boolean isChecked) {
	Settings.Secure.putInt(getContentResolver(), Settings.Secure.SPELL_CHECKER_ENABLED,
	isChecked ? 1 : 0);
	updatePreferenceScreen();
	}

	private void updatePreferenceScreen() {
	mCurrentSci = mTsm.getCurrentSpellChecker();
	final boolean isSpellCheckerEnabled = mTsm.isSpellCheckerEnabled();
	mSwitchBar.setChecked(isSpellCheckerEnabled);

	final SpellCheckerSubtype currentScs;
	if (mCurrentSci != null) {
	currentScs = mTsm.getCurrentSpellCheckerSubtype(
	false /* allowImplicitlySelectedSubtype */);
	} else {
	currentScs = null;
	}
	mSpellCheckerLanaguagePref.setSummary(getSpellCheckerSubtypeLabel(mCurrentSci, currentScs));

	final PreferenceScreen screen = getPreferenceScreen();
	final int count = screen.getPreferenceCount();
	for (int index = 0; index < count; index++) {
	final Preference preference = screen.getPreference(index);
	preference.setEnabled(isSpellCheckerEnabled);
	if (preference instanceof SpellCheckerPreference) {
	final SpellCheckerPreference pref = (SpellCheckerPreference) preference;
	pref.setSelected(mCurrentSci);
	}
	}
	mSpellCheckerLanaguagePref.setEnabled(isSpellCheckerEnabled && mCurrentSci != null);
	}

	private CharSequence getSpellCheckerSubtypeLabel(final SpellCheckerInfo sci,
	final SpellCheckerSubtype subtype) {
	if (sci == null) {
	return getString(R.string.spell_checker_not_selected);
	}
	if (subtype == null) {
	return getString(R.string.use_system_language_to_select_input_method_subtypes);
	}
	return subtype.getDisplayName(
	getActivity(), sci.getPackageName(), sci.getServiceInfo().applicationInfo);
	}

	@Override
	public boolean onPreferenceClick(final Preference pref) {
	if (pref == mSpellCheckerLanaguagePref) {
	showChooseLanguageDialog();
	return true;
	}
	return false;
	}

	@Override
	public boolean onPreferenceChange(Preference preference, Object newValue) {
	final SpellCheckerInfo sci = (SpellCheckerInfo) newValue;
	final boolean isSystemApp =
	(sci.getServiceInfo().applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
	if (isSystemApp) {
	changeCurrentSpellChecker(sci);
	return true;
	} else {
	showSecurityWarnDialog(sci);
	return false;
	}
	}

	private static int convertSubtypeIndexToDialogItemId(final int index) {
	return index + 1;
	}

	private static int convertDialogItemIdToSubtypeIndex(final int item) {
	return item - 1;
	}

	private void showChooseLanguageDialog() {
	if (mDialog != null && mDialog.isShowing()) {
	mDialog.dismiss();
	}
	final SpellCheckerInfo currentSci = mTsm.getCurrentSpellChecker();
	if (currentSci == null) {
	// This can happen in some situations. One example is that the package that the current
	// spell checker belongs to was uninstalled or being in background.
	return;
	}
	final SpellCheckerSubtype currentScs = mTsm.getCurrentSpellCheckerSubtype(
	false /* allowImplicitlySelectedSubtype */);
	final AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
	builder.setTitle(R.string.phone_language);
	final int subtypeCount = currentSci.getSubtypeCount();
	final CharSequence[] items = new CharSequence[subtypeCount + 1 /* default */];
	items[ITEM_ID_USE_SYSTEM_LANGUAGE] = getSpellCheckerSubtypeLabel(currentSci, null);
	int checkedItemId = ITEM_ID_USE_SYSTEM_LANGUAGE;
	for (int index = 0; index < subtypeCount; ++index) {
	final SpellCheckerSubtype subtype = currentSci.getSubtypeAt(index);
	final int itemId = convertSubtypeIndexToDialogItemId(index);
	items[itemId] = getSpellCheckerSubtypeLabel(currentSci, subtype);
	if (subtype.equals(currentScs)) {
	checkedItemId = itemId;
	}
	}
	builder.setSingleChoiceItems(items, checkedItemId, new AlertDialog.OnClickListener() {
	@Override
	public void onClick(final DialogInterface dialog, final int item) {
	final int subtypeId;
	if (item == ITEM_ID_USE_SYSTEM_LANGUAGE) {
	subtypeId = SpellCheckerSubtype.SUBTYPE_ID_NONE;
	} else {
	final int index = convertDialogItemIdToSubtypeIndex(item);
	subtypeId = currentSci.getSubtypeAt(index).hashCode();
	}

	Settings.Secure.putInt(getContentResolver(),
	Settings.Secure.SELECTED_SPELL_CHECKER_SUBTYPE, subtypeId);

	if (DBG) {
	final SpellCheckerSubtype subtype = mTsm.getCurrentSpellCheckerSubtype(
	true /* allowImplicitlySelectedSubtype */);
	Log.d(TAG, "Current spell check locale is "
	+ subtype == null ? "null" : subtype.getLocale());
	}
	dialog.dismiss();
	updatePreferenceScreen();
	}
	});
	mDialog = builder.create();
	mDialog.show();
	}

	private void showSecurityWarnDialog(final SpellCheckerInfo sci) {
	if (mDialog != null && mDialog.isShowing()) {
	mDialog.dismiss();
	}
	final AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
	builder.setTitle(android.R.string.dialog_alert_title);
	builder.setMessage(getString(R.string.spellchecker_security_warning,
	sci.loadLabel(getPackageManager())));
	builder.setCancelable(true);
	builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
	@Override
	public void onClick(final DialogInterface dialog, final int which) {
	changeCurrentSpellChecker(sci);
	}
	});
	builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
	@Override
	public void onClick(final DialogInterface dialog, final int which) {
	}
	});
	mDialog = builder.create();
	mDialog.show();
	}

	private void changeCurrentSpellChecker(final SpellCheckerInfo sci) {
	Settings.Secure.putString(getContentResolver(), Settings.Secure.SELECTED_SPELL_CHECKER,
	sci.getId());
	// Reset the spell checker subtype
	Settings.Secure.putInt(getContentResolver(), Settings.Secure.SELECTED_SPELL_CHECKER_SUBTYPE,
	SpellCheckerSubtype.SUBTYPE_ID_NONE);
	if (DBG) {
	Log.d(TAG, "Current spell check is " + mTsm.getCurrentSpellChecker().getId());
	}
	updatePreferenceScreen();
	}
	}