/* * 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.inputmethod.keyboard; import java.util.LinkedList; public class PointerTrackerQueue { private LinkedList mQueue = new LinkedList(); public void add(PointerTracker tracker) { mQueue.add(tracker); } public void releaseAllPointersOlderThan(PointerTracker tracker, long eventTime) { if (mQueue.lastIndexOf(tracker) < 0) { return; } final LinkedList queue = mQueue; int oldestPos = 0; for (PointerTracker t = queue.get(oldestPos); t != tracker; t = queue.get(oldestPos)) { if (t.isModifier()) { oldestPos++; } else { t.onPhantomUpEvent(t.getLastX(), t.getLastY(), eventTime, true); queue.remove(oldestPos); } } } public void releaseAllPointers(long eventTime) { releaseAllPointersExcept(null, eventTime, true); } public void releaseAllPointersExcept(PointerTracker tracker, long eventTime, boolean updateReleasedKeyGraphics) { for (PointerTracker t : mQueue) { if (t == tracker) continue; t.onPhantomUpEvent(t.getLastX(), t.getLastY(), eventTime, updateReleasedKeyGraphics); } mQueue.clear(); if (tracker != null) mQueue.add(tracker); } public void remove(PointerTracker tracker) { mQueue.remove(tracker); } public boolean isInSlidingKeyInput() { for (final PointerTracker tracker : mQueue) { if (tracker.isInSlidingKeyInput()) return true; } return false; } @Override public String toString() { StringBuilder sb = new StringBuilder("["); for (PointerTracker tracker : mQueue) { if (sb.length() > 1) sb.append(" "); sb.append(String.format("%d", tracker.mPointerId)); } sb.append("]"); return sb.toString(); } }