Index: content/public/android/java/src/org/chromium/content/browser/input/Range.java |
diff --git a/content/public/android/java/src/org/chromium/content/browser/input/Range.java b/content/public/android/java/src/org/chromium/content/browser/input/Range.java |
new file mode 100644 |
index 0000000000000000000000000000000000000000..c7278bc80f28e4245ed2f1b126f1b572b1f0d6bc |
--- /dev/null |
+++ b/content/public/android/java/src/org/chromium/content/browser/input/Range.java |
@@ -0,0 +1,78 @@ |
+// Copyright 2015 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+package org.chromium.content.browser.input; |
+ |
+/** |
+ * A simple class to set start and end in int type. |
+ */ |
+public class Range { |
+ private int mStart; |
+ private int mEnd; |
+ |
+ public Range(int start, int end) { |
+ set(start, end); |
+ } |
+ |
+ public void set(Range other) { |
+ mStart = other.start(); |
+ mEnd = other.end(); |
+ } |
+ |
+ public void set(int start, int end) { |
+ mStart = Math.min(start, end); |
+ mEnd = Math.max(start, end); |
+ } |
+ |
+ public void set(int value) { |
+ mStart = value; |
+ mEnd = value; |
+ } |
+ |
+ public int start() { |
+ return mStart; |
+ } |
+ |
+ public int end() { |
+ return mEnd; |
+ } |
+ |
+ public boolean isIn(Range other) { |
+ return mStart >= other.mStart && mEnd <= other.mEnd; |
+ } |
+ |
+ public void forceWithin(Range other) { |
+ if (mStart < other.mStart) mStart = other.mStart; |
+ if (mStart > other.mEnd) mStart = other.mEnd; |
+ if (mEnd > other.mEnd) mEnd = other.mEnd; |
+ if (mEnd < other.mStart) mEnd = other.mStart; |
+ } |
+ |
+ public static Range fromText(CharSequence text) { |
+ return new Range(0, text.length()); |
+ } |
+ |
+ public boolean isEmpty() { |
+ return mStart == mEnd; |
+ } |
+ |
+ @Override |
+ public boolean equals(Object o) { |
+ if (!(o instanceof Range)) return false; |
+ if (o == this) return true; |
+ Range r = (Range) o; |
+ return mStart == r.mStart && mEnd == r.mEnd; |
+ } |
+ |
+ @Override |
+ public int hashCode() { |
+ final int prime = 31; |
+ return prime * mStart + mEnd; |
+ } |
+ |
+ @Override |
+ public String toString() { |
+ return "[ " + mStart + ", " + mEnd + " ]"; |
+ } |
+} |