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/*
* Copyright (C) 2014 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.emoji;
import android.support.v4.view.PagerAdapter;
import android.util.Log;
import android.util.SparseArray;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.android.inputmethod.keyboard.Key;
import com.android.inputmethod.keyboard.Keyboard;
import com.android.inputmethod.keyboard.KeyboardView;
import com.android.inputmethod.latin.R;
final class EmojiPalettesAdapter extends PagerAdapter {
private static final String TAG = EmojiPalettesAdapter.class.getSimpleName();
private static final boolean DEBUG_PAGER = false;
private final EmojiPageKeyboardView.OnKeyEventListener mListener;
private final DynamicGridKeyboard mRecentsKeyboard;
private final SparseArray<EmojiPageKeyboardView> mActiveKeyboardViews = new SparseArray<>();
private final EmojiCategory mEmojiCategory;
private int mActivePosition = 0;
public EmojiPalettesAdapter(final EmojiCategory emojiCategory,
final EmojiPageKeyboardView.OnKeyEventListener listener) {
mEmojiCategory = emojiCategory;
mListener = listener;
mRecentsKeyboard = mEmojiCategory.getKeyboard(EmojiCategory.ID_RECENTS, 0);
}
public void flushPendingRecentKeys() {
mRecentsKeyboard.flushPendingRecentKeys();
final KeyboardView recentKeyboardView =
mActiveKeyboardViews.get(mEmojiCategory.getRecentTabId());
if (recentKeyboardView != null) {
recentKeyboardView.invalidateAllKeys();
}
}
public void addRecentKey(final Key key) {
if (mEmojiCategory.isInRecentTab()) {
mRecentsKeyboard.addPendingKey(key);
return;
}
mRecentsKeyboard.addKeyFirst(key);
final KeyboardView recentKeyboardView =
mActiveKeyboardViews.get(mEmojiCategory.getRecentTabId());
if (recentKeyboardView != null) {
recentKeyboardView.invalidateAllKeys();
}
}
public void onPageScrolled() {
releaseCurrentKey(false /* withKeyRegistering */);
}
public void releaseCurrentKey(final boolean withKeyRegistering) {
// Make sure the delayed key-down event (highlight effect and haptic feedback) will be
// canceled.
final EmojiPageKeyboardView currentKeyboardView =
mActiveKeyboardViews.get(mActivePosition);
if (currentKeyboardView == null) {
return;
}
currentKeyboardView.releaseCurrentKey(withKeyRegistering);
}
@Override
public int getCount() {
return mEmojiCategory.getTotalPageCountOfAllCategories();
}
@Override
public void setPrimaryItem(final ViewGroup container, final int position,
final Object object) {
if (mActivePosition == position) {
return;
}
final EmojiPageKeyboardView oldKeyboardView = mActiveKeyboardViews.get(mActivePosition);
if (oldKeyboardView != null) {
oldKeyboardView.releaseCurrentKey(false /* withKeyRegistering */);
oldKeyboardView.deallocateMemory();
}
mActivePosition = position;
}
@Override
public Object instantiateItem(final ViewGroup container, final int position) {
if (DEBUG_PAGER) {
Log.d(TAG, "instantiate item: " + position);
}
final EmojiPageKeyboardView oldKeyboardView = mActiveKeyboardViews.get(position);
if (oldKeyboardView != null) {
oldKeyboardView.deallocateMemory();
// This may be redundant but wanted to be safer..
mActiveKeyboardViews.remove(position);
}
final Keyboard keyboard =
mEmojiCategory.getKeyboardFromPagePosition(position);
final LayoutInflater inflater = LayoutInflater.from(container.getContext());
final EmojiPageKeyboardView keyboardView = (EmojiPageKeyboardView)inflater.inflate(
R.layout.emoji_keyboard_page, container, false /* attachToRoot */);
keyboardView.setKeyboard(keyboard);
keyboardView.setOnKeyEventListener(mListener);
container.addView(keyboardView);
mActiveKeyboardViews.put(position, keyboardView);
return keyboardView;
}
@Override
public boolean isViewFromObject(final View view, final Object object) {
return view == object;
}
@Override
public void destroyItem(final ViewGroup container, final int position,
final Object object) {
if (DEBUG_PAGER) {
Log.d(TAG, "destroy item: " + position + ", " + object.getClass().getSimpleName());
}
final EmojiPageKeyboardView keyboardView = mActiveKeyboardViews.get(position);
if (keyboardView != null) {
keyboardView.deallocateMemory();
mActiveKeyboardViews.remove(position);
}
if (object instanceof View) {
container.removeView((View)object);
} else {
Log.w(TAG, "Warning!!! Emoji palette may be leaking. " + object);
}
}
}
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