1 files changed, 101 insertions, 0 deletions
diff --git a/java/src/com/android/inputmethod/keyboard/internal/PointerTrackerKeyState.java b/java/src/com/android/inputmethod/keyboard/internal/PointerTrackerKeyState.java
new file mode 100644
index 000000000..ddadb1338
--- /dev/null
+++ b/java/src/com/android/inputmethod/keyboard/internal/PointerTrackerKeyState.java
@@ -0,0 +1,101 @@
+/*
+ * 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.KeyDetector;
+import com.android.inputmethod.keyboard.PointerTracker;
+
+/**
+ * This class keeps track of a key index and a position where {@link PointerTracker} is.
+ */
+public class PointerTrackerKeyState {
+    private final KeyDetector mKeyDetector;
+
+    // The position and time at which first down event occurred.
+    private long mDownTime;
+    private long mUpTime;
+
+    // The current key index where this pointer is.
+    private int mKeyIndex = KeyDetector.NOT_A_KEY;
+    // The position where mKeyIndex was recognized for the first time.
+    private int mKeyX;
+    private int mKeyY;
+
+    // Last pointer position.
+    private int mLastX;
+    private int mLastY;
+
+    public PointerTrackerKeyState(KeyDetector keyDetecor) {
+        mKeyDetector = keyDetecor;
+    }
+
+    public int getKeyIndex() {
+        return mKeyIndex;
+    }
+
+    public int getKeyX() {
+        return mKeyX;
+    }
+
+    public int getKeyY() {
+        return mKeyY;
+    }
+
+    public long getDownTime() {
+        return mDownTime;
+    }
+
+    public long getUpTime() {
+        return mUpTime;
+    }
+
+    public int getLastX() {
+        return mLastX;
+    }
+
+    public int getLastY() {
+        return mLastY;
+    }
+
+    public int onDownKey(int x, int y, long eventTime) {
+        mDownTime = eventTime;
+        return onMoveToNewKey(onMoveKeyInternal(x, y), x, y);
+    }
+
+    private int onMoveKeyInternal(int x, int y) {
+        mLastX = x;
+        mLastY = y;
+        return mKeyDetector.getKeyIndexAndNearbyCodes(x, y, null);
+    }
+
+    public int onMoveKey(int x, int y) {
+        return onMoveKeyInternal(x, y);
+    }
+
+    public int onMoveToNewKey(int keyIndex, int x, int y) {
+        mKeyIndex = keyIndex;
+        mKeyX = x;
+        mKeyY = y;
+        return keyIndex;
+    }
+
+    public int onUpKey(int x, int y, long eventTime) {
+        mUpTime = eventTime;
+        mKeyIndex = KeyDetector.NOT_A_KEY;
+        return onMoveKeyInternal(x, y);
+    }
+}