Remove unused vertical scrollable KeyboardView

Bug: 11517736
Change-Id: I9d71290112c2306336e136c94b628b533e386aaa

java/res/layout/emoji_keyboard_page.xml

@@ -18,16 +18,9 @@
 */
 -->
 
-<com.android.inputmethod.keyboard.internal.ScrollViewWithNotifier
+<com.android.inputmethod.keyboard.internal.EmojiPageKeyboardView
     xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/emoji_keyboard_scroller"
-    android:clipToPadding="false"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
->
-    <com.android.inputmethod.keyboard.internal.ScrollKeyboardView
     android:id="@+id/emoji_keyboard_page"
     android:layoutDirection="ltr"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content" />
-</com.android.inputmethod.keyboard.internal.ScrollViewWithNotifier>

java/src/com/android/inputmethod/keyboard/EmojiPalettesView.java

@@ -44,8 +44,7 @@ import android.widget.TabHost.OnTabChangeListener;
 import android.widget.TextView;
 
 import com.android.inputmethod.keyboard.internal.DynamicGridKeyboard;
-import com.android.inputmethod.keyboard.internal.ScrollKeyboardView;
+import com.android.inputmethod.keyboard.internal.EmojiPageKeyboardView;
-import com.android.inputmethod.keyboard.internal.ScrollViewWithNotifier;
 import com.android.inputmethod.latin.Constants;
 import com.android.inputmethod.latin.R;
 import com.android.inputmethod.latin.SubtypeSwitcher;
@@ -72,7 +71,7 @@ import java.util.concurrent.ConcurrentHashMap;
  */
 public final class EmojiPalettesView extends LinearLayout implements OnTabChangeListener,
         ViewPager.OnPageChangeListener, View.OnClickListener,
-        ScrollKeyboardView.OnKeyClickListener {
+        EmojiPageKeyboardView.OnKeyClickListener {
     private static final String TAG = EmojiPalettesView.class.getSimpleName();
     private static final boolean DEBUG_PAGER = false;
     private final int mKeyBackgroundId;
@@ -628,16 +627,16 @@ public final class EmojiPalettesView extends LinearLayout implements OnTabChange
     }
 
     private static class EmojiPalettesAdapter extends PagerAdapter {
-        private final ScrollKeyboardView.OnKeyClickListener mListener;
+        private final EmojiPageKeyboardView.OnKeyClickListener mListener;
         private final DynamicGridKeyboard mRecentsKeyboard;
-        private final SparseArray<ScrollKeyboardView> mActiveKeyboardViews =
+        private final SparseArray<EmojiPageKeyboardView> mActiveKeyboardViews =
                 CollectionUtils.newSparseArray();
         private final EmojiCategory mEmojiCategory;
         private int mActivePosition = 0;
 
         public EmojiPalettesAdapter(final EmojiCategory emojiCategory,
                 final KeyboardLayoutSet layoutSet,
-                final ScrollKeyboardView.OnKeyClickListener listener) {
+                final EmojiPageKeyboardView.OnKeyClickListener listener) {
             mEmojiCategory = emojiCategory;
             mListener = listener;
             mRecentsKeyboard = mEmojiCategory.getKeyboard(CATEGORY_ID_RECENTS, 0);
@@ -675,7 +674,7 @@ public final class EmojiPalettesView extends LinearLayout implements OnTabChange
             if (mActivePosition == position) {
                 return;
             }
-            final ScrollKeyboardView oldKeyboardView = mActiveKeyboardViews.get(mActivePosition);
+            final EmojiPageKeyboardView oldKeyboardView = mActiveKeyboardViews.get(mActivePosition);
             if (oldKeyboardView != null) {
                 oldKeyboardView.releaseCurrentKey();
                 oldKeyboardView.deallocateMemory();
@@ -688,7 +687,7 @@ public final class EmojiPalettesView extends LinearLayout implements OnTabChange
             if (DEBUG_PAGER) {
                 Log.d(TAG, "instantiate item: " + position);
             }
-            final ScrollKeyboardView oldKeyboardView = mActiveKeyboardViews.get(position);
+            final EmojiPageKeyboardView oldKeyboardView = mActiveKeyboardViews.get(position);
             if (oldKeyboardView != null) {
                 oldKeyboardView.deallocateMemory();
                 // This may be redundant but wanted to be safer..
@@ -697,18 +696,13 @@ public final class EmojiPalettesView extends LinearLayout implements OnTabChange
             final Keyboard keyboard =
                     mEmojiCategory.getKeyboardFromPagePosition(position);
             final LayoutInflater inflater = LayoutInflater.from(container.getContext());
-            final View view = inflater.inflate(
+            final EmojiPageKeyboardView keyboardView = (EmojiPageKeyboardView)inflater.inflate(
                     R.layout.emoji_keyboard_page, container, false /* attachToRoot */);
-            final ScrollKeyboardView keyboardView = (ScrollKeyboardView)view.findViewById(
-                    R.id.emoji_keyboard_page);
             keyboardView.setKeyboard(keyboard);
             keyboardView.setOnKeyClickListener(mListener);
-            final ScrollViewWithNotifier scrollView = (ScrollViewWithNotifier)view.findViewById(
+            container.addView(keyboardView);
-                    R.id.emoji_keyboard_scroller);
-            keyboardView.setScrollView(scrollView);
-            container.addView(view);
             mActiveKeyboardViews.put(position, keyboardView);
-            return view;
+            return keyboardView;
         }
 
         @Override
@@ -722,7 +716,7 @@ public final class EmojiPalettesView extends LinearLayout implements OnTabChange
             if (DEBUG_PAGER) {
                 Log.d(TAG, "destroy item: " + position + ", " + object.getClass().getSimpleName());
             }
-            final ScrollKeyboardView keyboardView = mActiveKeyboardViews.get(position);
+            final EmojiPageKeyboardView keyboardView = mActiveKeyboardViews.get(position);
             if (keyboardView != null) {
                 keyboardView.deallocateMemory();
                 mActiveKeyboardViews.remove(position);

java/src/com/android/inputmethod/keyboard/internal/EmojiPageKeyboardView.java

@@ -20,25 +20,21 @@ import android.content.Context;
 import android.util.AttributeSet;
 import android.view.GestureDetector;
 import android.view.MotionEvent;
-import android.widget.ScrollView;
-import android.widget.Scroller;
 
 import com.android.inputmethod.keyboard.Key;
 import com.android.inputmethod.keyboard.KeyDetector;
 import com.android.inputmethod.keyboard.Keyboard;
 import com.android.inputmethod.keyboard.KeyboardView;
+import com.android.inputmethod.keyboard.PointerTracker;
 import com.android.inputmethod.latin.R;
 
 /**
- * This is an extended {@link KeyboardView} class that hosts a vertical scroll keyboard.
+ * This is an extended {@link KeyboardView} class that hosts an emoji page keyboard.
  * Multi-touch unsupported. No {@link PointerTracker}s. No gesture support.
- * TODO: Vertical scroll capability should be removed from this class because it's no longer used.
  */
 // TODO: Implement key popup preview.
-public final class ScrollKeyboardView extends KeyboardView implements
+public final class EmojiPageKeyboardView extends KeyboardView implements
-        ScrollViewWithNotifier.ScrollListener, GestureDetector.OnGestureListener {
+        GestureDetector.OnGestureListener {
-    private static final boolean PAGINATION = false;
-
     public interface OnKeyClickListener {
         public void onKeyClick(Key key);
     }
@@ -52,63 +48,15 @@ public final class ScrollKeyboardView extends KeyboardView implements
     private final KeyDetector mKeyDetector = new KeyDetector(0.0f /*keyHysteresisDistance */);
     private final GestureDetector mGestureDetector;
 
-    private final Scroller mScroller;
+    public EmojiPageKeyboardView(final Context context, final AttributeSet attrs) {
-    private ScrollViewWithNotifier mScrollView;
-
-    public ScrollKeyboardView(final Context context, final AttributeSet attrs) {
         this(context, attrs, R.attr.keyboardViewStyle);
     }
 
-    public ScrollKeyboardView(final Context context, final AttributeSet attrs, final int defStyle) {
+    public EmojiPageKeyboardView(final Context context, final AttributeSet attrs,
+            final int defStyle) {
         super(context, attrs, defStyle);
         mGestureDetector = new GestureDetector(context, this);
         mGestureDetector.setIsLongpressEnabled(false /* isLongpressEnabled */);
-        mScroller = new Scroller(context);
-    }
-
-    public void setScrollView(final ScrollViewWithNotifier scrollView) {
-        mScrollView = scrollView;
-        scrollView.setScrollListener(this);
-    }
-
-    private final Runnable mScrollTask = new Runnable() {
-        @Override
-        public void run() {
-            final Scroller scroller = mScroller;
-            final ScrollView scrollView = mScrollView;
-            scroller.computeScrollOffset();
-            scrollView.scrollTo(0, scroller.getCurrY());
-            if (!scroller.isFinished()) {
-                scrollView.post(this);
-            }
-        }
-    };
-
-    // {@link ScrollViewWithNotified#ScrollListener} methods.
-    @Override
-    public void notifyScrollChanged(final int scrollX, final int scrollY, final int oldX,
-            final int oldY) {
-        if (PAGINATION) {
-            mScroller.forceFinished(true /* finished */);
-            mScrollView.removeCallbacks(mScrollTask);
-            final int currentTop = mScrollView.getScrollY();
-            final int pageHeight = getKeyboard().mBaseHeight;
-            final int lastPageNo = currentTop / pageHeight;
-            final int lastPageTop = lastPageNo * pageHeight;
-            final int nextPageNo = lastPageNo + 1;
-            final int nextPageTop = Math.min(nextPageNo * pageHeight, getHeight() - pageHeight);
-            final int scrollTo = (currentTop - lastPageTop) < (nextPageTop - currentTop)
-                    ? lastPageTop : nextPageTop;
-            final int deltaY = scrollTo - currentTop;
-            mScroller.startScroll(0, currentTop, 0, deltaY, 300);
-            mScrollView.post(mScrollTask);
-        }
-    }
-
-    @Override
-    public void notifyOverScrolled(final int scrollX, final int scrollY, final boolean clampedX,
-            final boolean clampedY) {
-        releaseCurrentKey();
     }
 
     public void setOnKeyClickListener(final OnKeyClickListener listener) {

java/src/com/android/inputmethod/keyboard/internal/ScrollViewWithNotifier.java

@@ -1,66 +0,0 @@
-/*
- * Copyright (C) 2013 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.inputmethod.keyboard.internal;
-
-import android.content.Context;
-import android.util.AttributeSet;
-import android.widget.ScrollView;
-
-/**
- * This is an extended {@link ScrollView} that can notify
- * {@link ScrollView#onScrollChanged(int,int,int,int} and
- * {@link ScrollView#onOverScrolled(int,int,int,int)} to a content view.
- */
-public class ScrollViewWithNotifier extends ScrollView {
-    private ScrollListener mScrollListener = EMPTY_LISTER;
-
-    public interface ScrollListener {
-        public void notifyScrollChanged(int scrollX, int scrollY, int oldX, int oldY);
-        public void notifyOverScrolled(int scrollX, int scrollY, boolean clampedX,
-                boolean clampedY);
-    }
-
-    private static final ScrollListener EMPTY_LISTER = new ScrollListener() {
-        @Override
-        public void notifyScrollChanged(int scrollX, int scrollY, int oldX, int oldY) {}
-        @Override
-        public void notifyOverScrolled(int scrollX, int scrollY, boolean clampedX,
-                boolean clampedY) {}
-    };
-
-    public ScrollViewWithNotifier(final Context context, final AttributeSet attrs) {
-        super(context, attrs);
-    }
-
-    @Override
-    protected void onScrollChanged(final int scrollX, final int scrollY, final int oldX,
-            final int oldY) {
-        super.onScrollChanged(scrollX, scrollY, oldX, oldY);
-        mScrollListener.notifyScrollChanged(scrollX, scrollY, oldX, oldY);
-    }
-
-    @Override
-    protected void onOverScrolled(final int scrollX, final int scrollY, final boolean clampedX,
-            final boolean clampedY) {
-        super.onOverScrolled(scrollX, scrollY, clampedX, clampedY);
-        mScrollListener.notifyOverScrolled(scrollX, scrollY, clampedX, clampedY);
-    }
-
-    public void setScrollListener(final ScrollListener listener) {
-        mScrollListener = listener;
-    }
-}