| /* |
| * Copyright (C) 2010 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.gallery3d.ui; |
| |
| import android.view.MotionEvent; |
| |
| public class MenuItemBar extends MenuBar { |
| public static final int INDEX_NONE = -1; |
| |
| public MenuItemBar(int visibility) { |
| super(visibility); |
| } |
| |
| private OnSelectedListener mOnSelectedListener; |
| private MenuItem mSelectedItem; |
| private boolean mSelectionChanged = false; |
| |
| public void setSelectedItem(MenuItem source) { |
| if (mSelectedItem == source) return; |
| mSelectionChanged = true; |
| if (mSelectedItem != null) mSelectedItem.setSelected(false); |
| mSelectedItem = source; |
| if (mSelectedItem != null) mSelectedItem.setSelected(true); |
| |
| if (mOnSelectedListener != null) { |
| mOnSelectedListener.onSelected(mSelectedItem); |
| } |
| } |
| |
| public void setOnSelectedListener(OnSelectedListener listener) { |
| mOnSelectedListener = listener; |
| } |
| |
| @Override |
| protected boolean dispatchTouchEvent(MotionEvent event) { |
| // do not dispatch to children |
| return onTouch(event); |
| } |
| |
| @SuppressWarnings("fallthrough") |
| @Override |
| protected boolean onTouch(MotionEvent event) { |
| int x = (int) event.getX(); |
| switch (event.getAction()) { |
| case MotionEvent.ACTION_DOWN: |
| mSelectionChanged = false; |
| // fall-through |
| case MotionEvent.ACTION_MOVE: |
| for (int i = 0, n = getComponentCount(); i < n; ++i) { |
| GLView component = getComponent(i); |
| if (x <= component.mBounds.right) { |
| setSelectedItem((MenuItem) component); |
| return true; |
| } |
| } |
| setSelectedItem(null); |
| break; |
| case MotionEvent.ACTION_UP: |
| if (mSelectionChanged == false) { |
| setSelectedItem(null); |
| } |
| } |
| return true; |
| |
| } |
| } |