content: /*
   * Copyright (C) 2012 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.amnesica.kryptey.inputmethod.latin.utils;
  
  import android.text.InputType;
  import android.view.inputmethod.EditorInfo;
  
  public final class InputTypeUtils implements InputType {
    private static final int WEB_TEXT_PASSWORD_INPUT_TYPE =
        TYPE_CLASS_TEXT | TYPE_TEXT_VARIATION_WEB_PASSWORD;
    private static final int NUMBER_PASSWORD_INPUT_TYPE =
        TYPE_CLASS_NUMBER | TYPE_NUMBER_VARIATION_PASSWORD;
    private static final int TEXT_PASSWORD_INPUT_TYPE =
        TYPE_CLASS_TEXT | TYPE_TEXT_VARIATION_PASSWORD;
    private static final int TEXT_VISIBLE_PASSWORD_INPUT_TYPE =
        TYPE_CLASS_TEXT | TYPE_TEXT_VARIATION_VISIBLE_PASSWORD;
    private static final int[] SUPPRESSING_AUTO_SPACES_FIELD_VARIATION = {
        InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS,
        InputType.TYPE_TEXT_VARIATION_PASSWORD,
        InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD,
        InputType.TYPE_TEXT_VARIATION_WEB_PASSWORD};
    public static final int IME_ACTION_CUSTOM_LABEL = EditorInfo.IME_MASK_ACTION + 1;
  
    private InputTypeUtils() {
      // This utility class is not publicly instantiable.
    }
  
    private static boolean isWebPasswordInputType(final int inputType) {
      return WEB_TEXT_PASSWORD_INPUT_TYPE != 0
          && inputType == WEB_TEXT_PASSWORD_INPUT_TYPE;
    }
  
    private static boolean isNumberPasswordInputType(final int inputType) {
      return NUMBER_PASSWORD_INPUT_TYPE != 0
          && inputType == NUMBER_PASSWORD_INPUT_TYPE;
    }
  
    private static boolean isTextPasswordInputType(final int inputType) {
      return inputType == TEXT_PASSWORD_INPUT_TYPE;
    }
  
    private static boolean isWebEmailAddressVariation(int variation) {
      return variation == TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS;
    }
  
    public static boolean isEmailVariation(final int variation) {
      return variation == TYPE_TEXT_VARIATION_EMAIL_ADDRESS
          || isWebEmailAddressVariation(variation);
    }
  
    // Please refer to TextView.isPasswordInputType
    public static boolean isPasswordInputType(final int inputType) {
      final int maskedInputType =
          inputType & (TYPE_MASK_CLASS | TYPE_MASK_VARIATION);
      return isTextPasswordInputType(maskedInputType) || isWebPasswordInputType(maskedInputType)
          || isNumberPasswordInputType(maskedInputType);
    }
  
    // Please refer to TextView.isVisiblePasswordInputType
    public static boolean isVisiblePasswordInputType(final int inputType) {
      final int maskedInputType =
          inputType & (TYPE_MASK_CLASS | TYPE_MASK_VARIATION);
      return maskedInputType == TEXT_VISIBLE_PASSWORD_INPUT_TYPE;
    }
  
    public static boolean isAutoSpaceFriendlyType(final int inputType) {
      if (TYPE_CLASS_TEXT != (TYPE_MASK_CLASS & inputType)) return false;
      final int variation = TYPE_MASK_VARIATION & inputType;
      for (final int fieldVariation : SUPPRESSING_AUTO_SPACES_FIELD_VARIATION) {
        if (variation == fieldVariation) return false;
      }
      return true;
    }
  
    public static int getImeOptionsActionIdFromEditorInfo(final EditorInfo editorInfo) {
      if ((editorInfo.imeOptions & EditorInfo.IME_FLAG_NO_ENTER_ACTION) != 0) {
        return EditorInfo.IME_ACTION_NONE;
      } else if (editorInfo.actionLabel != null) {
        return IME_ACTION_CUSTOM_LABEL;
      } else {
        // Note: this is different from editorInfo.actionId, hence "ImeOptionsActionId"
        return editorInfo.imeOptions & EditorInfo.IME_MASK_ACTION;
      }
    }
  }
  