Index: content/public/android/java/src/org/chromium/content/browser/input/TextInputState.java |
diff --git a/content/public/android/java/src/org/chromium/content/browser/input/TextInputState.java b/content/public/android/java/src/org/chromium/content/browser/input/TextInputState.java |
new file mode 100644 |
index 0000000000000000000000000000000000000000..c3a4db2619e93a7d001f3fac6d91150e127428bb |
--- /dev/null |
+++ b/content/public/android/java/src/org/chromium/content/browser/input/TextInputState.java |
@@ -0,0 +1,107 @@ |
+// Copyright 2016 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; |
+ |
+import android.text.TextUtils; |
+ |
+import java.util.Locale; |
+ |
+/** |
+ * An immutable class to contain text, selection range, composition range, and whether |
+ * it's single line or multiple lines that are being edited. |
+ */ |
+public class TextInputState { |
+ private final CharSequence mText; |
+ private final Range mSelection; |
+ private final Range mComposition; |
+ private final boolean mSingleLine; |
+ private final boolean mFromIme; |
+ |
+ public TextInputState(CharSequence text, Range selection, Range composition, |
+ boolean singleLine, boolean fromIme) { |
+ selection.clamp(0, text.length()); |
+ if (composition.start() != -1 || composition.end() != -1) { |
+ composition.clamp(0, text.length()); |
+ } |
+ mText = text; |
+ mSelection = selection; |
+ mComposition = composition; |
+ mSingleLine = singleLine; |
+ mFromIme = fromIme; |
+ } |
+ |
+ public CharSequence text() { |
+ return mText; |
+ } |
+ |
+ public Range selection() { |
+ return mSelection; |
+ } |
+ |
+ public Range composition() { |
+ return mComposition; |
+ } |
+ |
+ public boolean singleLine() { |
+ return mSingleLine; |
+ } |
+ |
+ public boolean fromIme() { |
+ return mFromIme; |
+ } |
+ |
+ public CharSequence getSelectedText() { |
+ return TextUtils.substring(mText, mSelection.start(), mSelection.end()); |
+ } |
+ |
+ public CharSequence getTextAfterSelection(int maxChars) { |
+ return TextUtils.substring( |
+ mText, mSelection.end(), Math.min(mText.length(), mSelection.end() + maxChars)); |
+ } |
+ |
+ public CharSequence getTextBeforeSelection(int maxChars) { |
+ return TextUtils.substring( |
+ mText, Math.max(0, mSelection.start() - maxChars), mSelection.start()); |
+ } |
+ |
+ @Override |
+ public boolean equals(Object o) { |
+ if (!(o instanceof TextInputState)) return false; |
+ TextInputState t = (TextInputState) o; |
+ if (t == this) return true; |
+ return TextUtils.equals(mText, t.mText) && mSelection.equals(t.mSelection) |
+ && mComposition.equals(t.mComposition) && mSingleLine == t.mSingleLine |
+ && mFromIme == t.mFromIme; |
+ } |
+ |
+ @Override |
+ public int hashCode() { |
+ return mText.hashCode() * 7 + mSelection.hashCode() * 11 + mComposition.hashCode() * 13 |
+ + (mSingleLine ? 19 : 0) + (mFromIme ? 23 : 0); |
+ } |
+ |
+ @SuppressWarnings("unused") |
+ public boolean shouldUnblock() { |
+ return false; |
+ } |
+ |
+ @Override |
+ public String toString() { |
+ return String.format(Locale.US, "TextInputState {[%s] SEL%s COM%s %s %s}", |
+ mText, mSelection, mComposition, mSingleLine ? "SIN" : "MUL", |
+ mFromIme ? "fromIME" : "NOTfromIME"); |
+ } |
+ |
+ static class Unblocker extends TextInputState { |
+ public Unblocker() { |
+ super("", new Range(0, 0), new Range(-1, -1), false, true /* fromIme */); |
+ } |
+ |
+ @Override |
+ public boolean shouldUnblock() { |
+ return true; |
+ } |
+ } |
+} |