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      1 /*
      2  * Copyright (C) 2011 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.inputmethod.latin;
     18 
     19 import static com.android.inputmethod.latin.common.Constants.ImeOption.NO_FLOATING_GESTURE_PREVIEW;
     20 import static com.android.inputmethod.latin.common.Constants.ImeOption.NO_MICROPHONE;
     21 import static com.android.inputmethod.latin.common.Constants.ImeOption.NO_MICROPHONE_COMPAT;
     22 
     23 import android.text.InputType;
     24 import android.util.Log;
     25 import android.view.inputmethod.EditorInfo;
     26 
     27 import com.android.inputmethod.latin.common.StringUtils;
     28 import com.android.inputmethod.latin.utils.InputTypeUtils;
     29 
     30 import java.util.ArrayList;
     31 import java.util.Arrays;
     32 
     33 /**
     34  * Class to hold attributes of the input field.
     35  */
     36 public final class InputAttributes {
     37     private final String TAG = InputAttributes.class.getSimpleName();
     38 
     39     final public String mTargetApplicationPackageName;
     40     final public boolean mInputTypeNoAutoCorrect;
     41     final public boolean mIsPasswordField;
     42     final public boolean mShouldShowSuggestions;
     43     final public boolean mApplicationSpecifiedCompletionOn;
     44     final public boolean mShouldInsertSpacesAutomatically;
     45     final public boolean mShouldShowVoiceInputKey;
     46     /**
     47      * Whether the floating gesture preview should be disabled. If true, this should override the
     48      * corresponding keyboard settings preference, always suppressing the floating preview text.
     49      * {@link com.android.inputmethod.latin.settings.SettingsValues#mGestureFloatingPreviewTextEnabled}
     50      */
     51     final public boolean mDisableGestureFloatingPreviewText;
     52     final public boolean mIsGeneralTextInput;
     53     final private int mInputType;
     54     final private EditorInfo mEditorInfo;
     55     final private String mPackageNameForPrivateImeOptions;
     56 
     57     public InputAttributes(final EditorInfo editorInfo, final boolean isFullscreenMode,
     58             final String packageNameForPrivateImeOptions) {
     59         mEditorInfo = editorInfo;
     60         mPackageNameForPrivateImeOptions = packageNameForPrivateImeOptions;
     61         mTargetApplicationPackageName = null != editorInfo ? editorInfo.packageName : null;
     62         final int inputType = null != editorInfo ? editorInfo.inputType : 0;
     63         final int inputClass = inputType & InputType.TYPE_MASK_CLASS;
     64         mInputType = inputType;
     65         mIsPasswordField = InputTypeUtils.isPasswordInputType(inputType)
     66                 || InputTypeUtils.isVisiblePasswordInputType(inputType);
     67         if (inputClass != InputType.TYPE_CLASS_TEXT) {
     68             // If we are not looking at a TYPE_CLASS_TEXT field, the following strange
     69             // cases may arise, so we do a couple sanity checks for them. If it's a
     70             // TYPE_CLASS_TEXT field, these special cases cannot happen, by construction
     71             // of the flags.
     72             if (null == editorInfo) {
     73                 Log.w(TAG, "No editor info for this field. Bug?");
     74             } else if (InputType.TYPE_NULL == inputType) {
     75                 // TODO: We should honor TYPE_NULL specification.
     76                 Log.i(TAG, "InputType.TYPE_NULL is specified");
     77             } else if (inputClass == 0) {
     78                 // TODO: is this check still necessary?
     79                 Log.w(TAG, String.format("Unexpected input class: inputType=0x%08x"
     80                         + " imeOptions=0x%08x", inputType, editorInfo.imeOptions));
     81             }
     82             mShouldShowSuggestions = false;
     83             mInputTypeNoAutoCorrect = false;
     84             mApplicationSpecifiedCompletionOn = false;
     85             mShouldInsertSpacesAutomatically = false;
     86             mShouldShowVoiceInputKey = false;
     87             mDisableGestureFloatingPreviewText = false;
     88             mIsGeneralTextInput = false;
     89             return;
     90         }
     91         // inputClass == InputType.TYPE_CLASS_TEXT
     92         final int variation = inputType & InputType.TYPE_MASK_VARIATION;
     93         final boolean flagNoSuggestions =
     94                 0 != (inputType & InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
     95         final boolean flagMultiLine =
     96                 0 != (inputType & InputType.TYPE_TEXT_FLAG_MULTI_LINE);
     97         final boolean flagAutoCorrect =
     98                 0 != (inputType & InputType.TYPE_TEXT_FLAG_AUTO_CORRECT);
     99         final boolean flagAutoComplete =
    100                 0 != (inputType & InputType.TYPE_TEXT_FLAG_AUTO_COMPLETE);
    101 
    102         // TODO: Have a helper method in InputTypeUtils
    103         // Make sure that passwords are not displayed in {@link SuggestionStripView}.
    104         final boolean shouldSuppressSuggestions = mIsPasswordField
    105                 || InputTypeUtils.isEmailVariation(variation)
    106                 || InputType.TYPE_TEXT_VARIATION_URI == variation
    107                 || InputType.TYPE_TEXT_VARIATION_FILTER == variation
    108                 || flagNoSuggestions
    109                 || flagAutoComplete;
    110         mShouldShowSuggestions = !shouldSuppressSuggestions;
    111 
    112         mShouldInsertSpacesAutomatically = InputTypeUtils.isAutoSpaceFriendlyType(inputType);
    113 
    114         final boolean noMicrophone = mIsPasswordField
    115                 || InputTypeUtils.isEmailVariation(variation)
    116                 || InputType.TYPE_TEXT_VARIATION_URI == variation
    117                 || hasNoMicrophoneKeyOption();
    118         mShouldShowVoiceInputKey = !noMicrophone;
    119 
    120         mDisableGestureFloatingPreviewText = InputAttributes.inPrivateImeOptions(
    121                 mPackageNameForPrivateImeOptions, NO_FLOATING_GESTURE_PREVIEW, editorInfo);
    122 
    123         // If it's a browser edit field and auto correct is not ON explicitly, then
    124         // disable auto correction, but keep suggestions on.
    125         // If NO_SUGGESTIONS is set, don't do prediction.
    126         // If it's not multiline and the autoCorrect flag is not set, then don't correct
    127         mInputTypeNoAutoCorrect =
    128                 (variation == InputType.TYPE_TEXT_VARIATION_WEB_EDIT_TEXT && !flagAutoCorrect)
    129                 || flagNoSuggestions
    130                 || (!flagAutoCorrect && !flagMultiLine);
    131 
    132         mApplicationSpecifiedCompletionOn = flagAutoComplete && isFullscreenMode;
    133 
    134         // If we come here, inputClass is always TYPE_CLASS_TEXT
    135         mIsGeneralTextInput = InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS != variation
    136                 && InputType.TYPE_TEXT_VARIATION_PASSWORD != variation
    137                 && InputType.TYPE_TEXT_VARIATION_PHONETIC != variation
    138                 && InputType.TYPE_TEXT_VARIATION_URI != variation
    139                 && InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD != variation
    140                 && InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS != variation
    141                 && InputType.TYPE_TEXT_VARIATION_WEB_PASSWORD != variation;
    142     }
    143 
    144     public boolean isTypeNull() {
    145         return InputType.TYPE_NULL == mInputType;
    146     }
    147 
    148     public boolean isSameInputType(final EditorInfo editorInfo) {
    149         return editorInfo.inputType == mInputType;
    150     }
    151 
    152     private boolean hasNoMicrophoneKeyOption() {
    153         @SuppressWarnings("deprecation")
    154         final boolean deprecatedNoMicrophone = InputAttributes.inPrivateImeOptions(
    155                 null, NO_MICROPHONE_COMPAT, mEditorInfo);
    156         final boolean noMicrophone = InputAttributes.inPrivateImeOptions(
    157                 mPackageNameForPrivateImeOptions, NO_MICROPHONE, mEditorInfo);
    158         return noMicrophone || deprecatedNoMicrophone;
    159     }
    160 
    161     @SuppressWarnings("unused")
    162     private void dumpFlags(final int inputType) {
    163         final int inputClass = inputType & InputType.TYPE_MASK_CLASS;
    164         final String inputClassString = toInputClassString(inputClass);
    165         final String variationString = toVariationString(
    166                 inputClass, inputType & InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS);
    167         final String flagsString = toFlagsString(inputType & InputType.TYPE_MASK_FLAGS);
    168         Log.i(TAG, "Input class: " + inputClassString);
    169         Log.i(TAG, "Variation: " + variationString);
    170         Log.i(TAG, "Flags: " + flagsString);
    171     }
    172 
    173     private static String toInputClassString(final int inputClass) {
    174         switch (inputClass) {
    175         case InputType.TYPE_CLASS_TEXT:
    176             return "TYPE_CLASS_TEXT";
    177         case InputType.TYPE_CLASS_PHONE:
    178             return "TYPE_CLASS_PHONE";
    179         case InputType.TYPE_CLASS_NUMBER:
    180             return "TYPE_CLASS_NUMBER";
    181         case InputType.TYPE_CLASS_DATETIME:
    182             return "TYPE_CLASS_DATETIME";
    183         default:
    184             return String.format("unknownInputClass<0x%08x>", inputClass);
    185         }
    186     }
    187 
    188     private static String toVariationString(final int inputClass, final int variation) {
    189         switch (inputClass) {
    190         case InputType.TYPE_CLASS_TEXT:
    191             return toTextVariationString(variation);
    192         case InputType.TYPE_CLASS_NUMBER:
    193             return toNumberVariationString(variation);
    194         case InputType.TYPE_CLASS_DATETIME:
    195             return toDatetimeVariationString(variation);
    196         default:
    197             return "";
    198         }
    199     }
    200 
    201     private static String toTextVariationString(final int variation) {
    202         switch (variation) {
    203         case InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS:
    204             return " TYPE_TEXT_VARIATION_EMAIL_ADDRESS";
    205         case InputType.TYPE_TEXT_VARIATION_EMAIL_SUBJECT:
    206             return "TYPE_TEXT_VARIATION_EMAIL_SUBJECT";
    207         case InputType.TYPE_TEXT_VARIATION_FILTER:
    208             return "TYPE_TEXT_VARIATION_FILTER";
    209         case InputType.TYPE_TEXT_VARIATION_LONG_MESSAGE:
    210             return "TYPE_TEXT_VARIATION_LONG_MESSAGE";
    211         case InputType.TYPE_TEXT_VARIATION_NORMAL:
    212             return "TYPE_TEXT_VARIATION_NORMAL";
    213         case InputType.TYPE_TEXT_VARIATION_PASSWORD:
    214             return "TYPE_TEXT_VARIATION_PASSWORD";
    215         case InputType.TYPE_TEXT_VARIATION_PERSON_NAME:
    216             return "TYPE_TEXT_VARIATION_PERSON_NAME";
    217         case InputType.TYPE_TEXT_VARIATION_PHONETIC:
    218             return "TYPE_TEXT_VARIATION_PHONETIC";
    219         case InputType.TYPE_TEXT_VARIATION_POSTAL_ADDRESS:
    220             return "TYPE_TEXT_VARIATION_POSTAL_ADDRESS";
    221         case InputType.TYPE_TEXT_VARIATION_SHORT_MESSAGE:
    222             return "TYPE_TEXT_VARIATION_SHORT_MESSAGE";
    223         case InputType.TYPE_TEXT_VARIATION_URI:
    224             return "TYPE_TEXT_VARIATION_URI";
    225         case InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD:
    226             return "TYPE_TEXT_VARIATION_VISIBLE_PASSWORD";
    227         case InputType.TYPE_TEXT_VARIATION_WEB_EDIT_TEXT:
    228             return "TYPE_TEXT_VARIATION_WEB_EDIT_TEXT";
    229         case InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS:
    230             return "TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS";
    231         case InputType.TYPE_TEXT_VARIATION_WEB_PASSWORD:
    232             return "TYPE_TEXT_VARIATION_WEB_PASSWORD";
    233         default:
    234             return String.format("unknownVariation<0x%08x>", variation);
    235         }
    236     }
    237 
    238     private static String toNumberVariationString(final int variation) {
    239         switch (variation) {
    240         case InputType.TYPE_NUMBER_VARIATION_NORMAL:
    241             return "TYPE_NUMBER_VARIATION_NORMAL";
    242         case InputType.TYPE_NUMBER_VARIATION_PASSWORD:
    243             return "TYPE_NUMBER_VARIATION_PASSWORD";
    244         default:
    245             return String.format("unknownVariation<0x%08x>", variation);
    246         }
    247     }
    248 
    249     private static String toDatetimeVariationString(final int variation) {
    250         switch (variation) {
    251         case InputType.TYPE_DATETIME_VARIATION_NORMAL:
    252             return "TYPE_DATETIME_VARIATION_NORMAL";
    253         case InputType.TYPE_DATETIME_VARIATION_DATE:
    254             return "TYPE_DATETIME_VARIATION_DATE";
    255         case InputType.TYPE_DATETIME_VARIATION_TIME:
    256             return "TYPE_DATETIME_VARIATION_TIME";
    257         default:
    258             return String.format("unknownVariation<0x%08x>", variation);
    259         }
    260     }
    261 
    262     private static String toFlagsString(final int flags) {
    263         final ArrayList<String> flagsArray = new ArrayList<>();
    264         if (0 != (flags & InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS))
    265             flagsArray.add("TYPE_TEXT_FLAG_NO_SUGGESTIONS");
    266         if (0 != (flags & InputType.TYPE_TEXT_FLAG_MULTI_LINE))
    267             flagsArray.add("TYPE_TEXT_FLAG_MULTI_LINE");
    268         if (0 != (flags & InputType.TYPE_TEXT_FLAG_IME_MULTI_LINE))
    269             flagsArray.add("TYPE_TEXT_FLAG_IME_MULTI_LINE");
    270         if (0 != (flags & InputType.TYPE_TEXT_FLAG_CAP_WORDS))
    271             flagsArray.add("TYPE_TEXT_FLAG_CAP_WORDS");
    272         if (0 != (flags & InputType.TYPE_TEXT_FLAG_CAP_SENTENCES))
    273             flagsArray.add("TYPE_TEXT_FLAG_CAP_SENTENCES");
    274         if (0 != (flags & InputType.TYPE_TEXT_FLAG_CAP_CHARACTERS))
    275             flagsArray.add("TYPE_TEXT_FLAG_CAP_CHARACTERS");
    276         if (0 != (flags & InputType.TYPE_TEXT_FLAG_AUTO_CORRECT))
    277             flagsArray.add("TYPE_TEXT_FLAG_AUTO_CORRECT");
    278         if (0 != (flags & InputType.TYPE_TEXT_FLAG_AUTO_COMPLETE))
    279             flagsArray.add("TYPE_TEXT_FLAG_AUTO_COMPLETE");
    280         return flagsArray.isEmpty() ? "" : Arrays.toString(flagsArray.toArray());
    281     }
    282 
    283     // Pretty print
    284     @Override
    285     public String toString() {
    286         return String.format(
    287                 "%s: inputType=0x%08x%s%s%s%s%s targetApp=%s\n", getClass().getSimpleName(),
    288                 mInputType,
    289                 (mInputTypeNoAutoCorrect ? " noAutoCorrect" : ""),
    290                 (mIsPasswordField ? " password" : ""),
    291                 (mShouldShowSuggestions ? " shouldShowSuggestions" : ""),
    292                 (mApplicationSpecifiedCompletionOn ? " appSpecified" : ""),
    293                 (mShouldInsertSpacesAutomatically ? " insertSpaces" : ""),
    294                 mTargetApplicationPackageName);
    295     }
    296 
    297     public static boolean inPrivateImeOptions(final String packageName, final String key,
    298             final EditorInfo editorInfo) {
    299         if (editorInfo == null) return false;
    300         final String findingKey = (packageName != null) ? packageName + "." + key : key;
    301         return StringUtils.containsInCommaSplittableText(findingKey, editorInfo.privateImeOptions);
    302     }
    303 }
    304