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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.suggestions;
     18 
     19 import android.content.Context;
     20 import android.util.AttributeSet;
     21 import android.util.Log;
     22 
     23 import com.android.inputmethod.keyboard.Key;
     24 import com.android.inputmethod.keyboard.Keyboard;
     25 import com.android.inputmethod.keyboard.KeyboardActionListener;
     26 import com.android.inputmethod.keyboard.MoreKeysKeyboardView;
     27 import com.android.inputmethod.latin.R;
     28 import com.android.inputmethod.latin.SuggestedWords;
     29 import com.android.inputmethod.latin.SuggestedWords.SuggestedWordInfo;
     30 import com.android.inputmethod.latin.suggestions.MoreSuggestions.MoreSuggestionKey;
     31 
     32 /**
     33  * A view that renders a virtual {@link MoreSuggestions}. It handles rendering of keys and detecting
     34  * key presses and touch movements.
     35  */
     36 public final class MoreSuggestionsView extends MoreKeysKeyboardView {
     37     private static final String TAG = MoreSuggestionsView.class.getSimpleName();
     38 
     39     public static abstract class MoreSuggestionsListener extends KeyboardActionListener.Adapter {
     40         public abstract void onSuggestionSelected(final SuggestedWordInfo info);
     41     }
     42 
     43     public MoreSuggestionsView(final Context context, final AttributeSet attrs) {
     44         this(context, attrs, R.attr.moreKeysKeyboardViewStyle);
     45     }
     46 
     47     public MoreSuggestionsView(final Context context, final AttributeSet attrs,
     48             final int defStyle) {
     49         super(context, attrs, defStyle);
     50     }
     51 
     52     // TODO: Remove redundant override method.
     53     @Override
     54     public void setKeyboard(final Keyboard keyboard) {
     55         super.setKeyboard(keyboard);
     56         // With accessibility mode off, {@link #mAccessibilityDelegate} is set to null at the
     57         // above {@link MoreKeysKeyboardView#setKeyboard(Keyboard)} call.
     58         // With accessibility mode on, {@link #mAccessibilityDelegate} is set to a
     59         // {@link MoreKeysKeyboardAccessibilityDelegate} object at the above
     60         // {@link MoreKeysKeyboardView#setKeyboard(Keyboard)} call.
     61         if (mAccessibilityDelegate != null) {
     62             mAccessibilityDelegate.setOpenAnnounce(R.string.spoken_open_more_suggestions);
     63             mAccessibilityDelegate.setCloseAnnounce(R.string.spoken_close_more_suggestions);
     64         }
     65     }
     66 
     67     @Override
     68     protected int getDefaultCoordX() {
     69         final MoreSuggestions pane = (MoreSuggestions)getKeyboard();
     70         return pane.mOccupiedWidth / 2;
     71     }
     72 
     73     public void updateKeyboardGeometry(final int keyHeight) {
     74         updateKeyDrawParams(keyHeight);
     75     }
     76 
     77     public void adjustVerticalCorrectionForModalMode() {
     78         // Set vertical correction to zero (Reset more keys keyboard sliding allowance
     79         // {@link R#dimen.config_more_keys_keyboard_slide_allowance}).
     80         mKeyDetector.setKeyboard(getKeyboard(), -getPaddingLeft(), -getPaddingTop());
     81     }
     82 
     83     @Override
     84     protected void onKeyInput(final Key key, final int x, final int y) {
     85         if (!(key instanceof MoreSuggestionKey)) {
     86             Log.e(TAG, "Expected key is MoreSuggestionKey, but found "
     87                     + key.getClass().getName());
     88             return;
     89         }
     90         final Keyboard keyboard = getKeyboard();
     91         if (!(keyboard instanceof MoreSuggestions)) {
     92             Log.e(TAG, "Expected keyboard is MoreSuggestions, but found "
     93                     + keyboard.getClass().getName());
     94             return;
     95         }
     96         final SuggestedWords suggestedWords = ((MoreSuggestions)keyboard).mSuggestedWords;
     97         final int index = ((MoreSuggestionKey)key).mSuggestedWordIndex;
     98         if (index < 0 || index >= suggestedWords.size()) {
     99             Log.e(TAG, "Selected suggestion has an illegal index: " + index);
    100             return;
    101         }
    102         if (!(mListener instanceof MoreSuggestionsListener)) {
    103             Log.e(TAG, "Expected mListener is MoreSuggestionsListener, but found "
    104                     + mListener.getClass().getName());
    105             return;
    106         }
    107         ((MoreSuggestionsListener)mListener).onSuggestionSelected(suggestedWords.getInfo(index));
    108     }
    109 }
    110