Throw exception when invalid time stamps are detected in debug mode (f1074c50) · Commits · e / os / android_packages_inputmethods_LatinIME

java/src/com/android/inputmethod/latin/InputPointers.java

+22 −0

Original line number	Diff line number	Diff line
		@@ -18,8 +18,11 @@ package com.android.inputmethod.latin;

		import com.android.inputmethod.annotations.UsedForTesting;

		import android.util.Log;

		// TODO: This class is not thread-safe.
		public final class InputPointers {
		private static final String TAG = InputPointers.class.getSimpleName();
		private final int mDefaultCapacity;
		private final ResizableIntArray mXCoordinates;
		private final ResizableIntArray mYCoordinates;
		@@ -126,6 +129,11 @@ public final class InputPointers {
		}

		public int[] getTimes() {
		if (LatinImeLogger.sDBG) {
		if (!isValidTimeStamps()) {
		throw new RuntimeException("Time stamps are invalid.");
		}
		}
		return mTimes.getPrimitiveArray();
		}

		@@ -134,4 +142,18 @@ public final class InputPointers {
		return "size=" + getPointerSize() + " id=" + mPointerIds + " time=" + mTimes
		+ " x=" + mXCoordinates + " y=" + mYCoordinates;
		}

		private boolean isValidTimeStamps() {
		final int[] times = mTimes.getPrimitiveArray();
		for (int i = 1; i < getPointerSize(); ++i) {
		if (times[i] < times[i - 1]) {
		// dump
		for (int j = 0; j < times.length; ++j) {
		Log.d(TAG, "--- (" + j + ") " + times[j]);
		}
		return false;
		}
		}
		return true;
		}
		}