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RESTRICT AUTOMERGE Do not linkify text with RLO/LRO characters.

Browse Source 
Also don't show smart actions for selections in text with unsupported
characters.

Bug: 116321860
Test: runtest -x cts/tests/tests/text/src/android/text/util/cts/LinkifyTest.java

Change-Id: Id271cab8aef6b9b13ef17f1a8654c7616f75cf13
This commit is contained in:
Tony Mak
2018-11-29 17:37:42 +00:00
committed by Abodunrinwa Toki
parent 64306e1e7b
commit 73f398d306
1 changed files with 36 additions and 0 deletions
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36
core/java/android/text/util/Linkify.java
View File

@@ -26,6 +26,7 @@ import android.text.style.URLSpan;
import android.text.Spannable;
import android.text.SpannableString;
import android.text.Spanned;
import android.util.Log;
import android.util.Patterns;
import android.webkit.WebView;
import android.widget.TextView;
@@ -65,6 +66,9 @@ import libcore.util.EmptyArray;
*/
public class Linkify {
private static final String LOG_TAG = "Linkify";
/**
* Bit field indicating that web URLs should be matched in methods that
* take an options mask
@@ -222,6 +226,11 @@ public class Linkify {
* @return True if at least one link is found and applied.
*/
public static final boolean addLinks(@NonNull Spannable text, @LinkifyMask int mask) {
if (text != null && containsUnsupportedCharacters(text.toString())) {
android.util.EventLog.writeEvent(0x534e4554, "116321860", -1, "");
return false;
}
if (mask == 0) {
return false;
}
@@ -267,6 +276,29 @@ public class Linkify {
return true;
}
/**
* Returns true if the specified text contains at least one unsupported character for applying
* links. Also logs the error.
*
* @param text the text to apply links to
* @hide
*/
public static boolean containsUnsupportedCharacters(String text) {
if (text.contains("\u202C")) {
Log.e(LOG_TAG, "Unsupported character for applying links: u202C");
return true;
}
if (text.contains("\u202D")) {
Log.e(LOG_TAG, "Unsupported character for applying links: u202D");
return true;
}
if (text.contains("\u202E")) {
Log.e(LOG_TAG, "Unsupported character for applying links: u202E");
return true;
}
return false;
}
/**
* Scans the text of the provided TextView and turns all occurrences of
* the link types indicated in the mask into clickable links. If matches
@@ -414,6 +446,10 @@ public class Linkify {
public static final boolean addLinks(@NonNull Spannable spannable, @NonNull Pattern pattern,
@Nullable String scheme, @Nullable MatchFilter matchFilter,
@Nullable TransformFilter transformFilter) {
if (spannable != null && containsUnsupportedCharacters(spannable.toString())) {
android.util.EventLog.writeEvent(0x534e4554, "116321860", -1, "");
return false;
}
return addLinks(spannable, pattern, scheme, null, matchFilter,
transformFilter);
}