Home | History | Annotate | Download | only in suggestions 
      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     private boolean mIsInModalMode;
     44 
     45     public MoreSuggestionsView(final Context context, final AttributeSet attrs) {
     46         this(context, attrs, R.attr.moreKeysKeyboardViewStyle);
     47     }
     48 
     49     public MoreSuggestionsView(final Context context, final AttributeSet attrs,
     50             final int defStyle) {
     51         super(context, attrs, defStyle);
     52     }
     53 
     54     // TODO: Remove redundant override method.
     55     @Override
     56     public void setKeyboard(final Keyboard keyboard) {
     57         super.setKeyboard(keyboard);
     58         mIsInModalMode = false;
     59         // With accessibility mode off, {@link #mAccessibilityDelegate} is set to null at the
     60         // above {@link MoreKeysKeyboardView#setKeyboard(Keyboard)} call.
     61         // With accessibility mode on, {@link #mAccessibilityDelegate} is set to a
     62         // {@link MoreKeysKeyboardAccessibilityDelegate} object at the above
     63         // {@link MoreKeysKeyboardView#setKeyboard(Keyboard)} call.
     64         if (mAccessibilityDelegate != null) {
     65             mAccessibilityDelegate.setOpenAnnounce(R.string.spoken_open_more_suggestions);
     66             mAccessibilityDelegate.setCloseAnnounce(R.string.spoken_close_more_suggestions);
     67         }
     68     }
     69 
     70     @Override
     71     protected int getDefaultCoordX() {
     72         final MoreSuggestions pane = (MoreSuggestions)getKeyboard();
     73         return pane.mOccupiedWidth / 2;
     74     }
     75 
     76     public void updateKeyboardGeometry(final int keyHeight) {
     77         updateKeyDrawParams(keyHeight);
     78     }
     79 
     80     public void setModalMode() {
     81         mIsInModalMode = true;
     82         // Set vertical correction to zero (Reset more keys keyboard sliding allowance
     83         // {@link R#dimen.config_more_keys_keyboard_slide_allowance}).
     84         mKeyDetector.setKeyboard(getKeyboard(), -getPaddingLeft(), -getPaddingTop());
     85     }
     86 
     87     public boolean isInModalMode() {
     88         return mIsInModalMode;
     89     }
     90 
     91     @Override
     92     protected void onKeyInput(final Key key, final int x, final int y) {
     93         if (!(key instanceof MoreSuggestionKey)) {
     94             Log.e(TAG, "Expected key is MoreSuggestionKey, but found "
     95                     + key.getClass().getName());
     96             return;
     97         }
     98         final Keyboard keyboard = getKeyboard();
     99         if (!(keyboard instanceof MoreSuggestions)) {
    100             Log.e(TAG, "Expected keyboard is MoreSuggestions, but found "
    101                     + keyboard.getClass().getName());
    102             return;
    103         }
    104         final SuggestedWords suggestedWords = ((MoreSuggestions)keyboard).mSuggestedWords;
    105         final int index = ((MoreSuggestionKey)key).mSuggestedWordIndex;
    106         if (index < 0 || index >= suggestedWords.size()) {
    107             Log.e(TAG, "Selected suggestion has an illegal index: " + index);
    108             return;
    109         }
    110         if (!(mListener instanceof MoreSuggestionsListener)) {
    111             Log.e(TAG, "Expected mListener is MoreSuggestionsListener, but found "
    112                     + mListener.getClass().getName());
    113             return;
    114         }
    115         ((MoreSuggestionsListener)mListener).onSuggestionSelected(suggestedWords.getInfo(index));
    116     }
    117 }
    118