1 files changed, 85 insertions, 0 deletions
diff --git a/java/src/com/android/inputmethod/keyboard/internal/PointerTrackerQueue.java b/java/src/com/android/inputmethod/keyboard/internal/PointerTrackerQueue.java
new file mode 100644
index 000000000..f87cd869e
--- /dev/null
+++ b/java/src/com/android/inputmethod/keyboard/internal/PointerTrackerQueue.java
@@ -0,0 +1,85 @@
+/*
+ * 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.internal;
+
+import com.android.inputmethod.keyboard.PointerTracker;
+
+import java.util.LinkedList;
+
+public class PointerTrackerQueue {
+    private LinkedList<PointerTracker> mQueue = new LinkedList<PointerTracker>();
+
+    public void add(PointerTracker tracker) {
+        mQueue.add(tracker);
+    }
+
+    public void releaseAllPointersOlderThan(PointerTracker tracker, long eventTime) {
+        if (mQueue.lastIndexOf(tracker) < 0) {
+            return;
+        }
+        final LinkedList<PointerTracker> 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();
+    }
+}