Passing BackgroundColorSpan and UnderlineSpan from Clank to Blink.

content/public/android/java/src/org/chromium/content/browser/input/ImeAdapter.java

Index: content/public/android/java/src/org/chromium/content/browser/input/ImeAdapter.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/input/ImeAdapter.java b/content/public/android/java/src/org/chromium/content/browser/input/ImeAdapter.java
index cffc903183d58c4ed76675642a306f50251500bf..1126a8040b0798b581ada643248e9ef4208629d0 100644
--- a/content/public/android/java/src/org/chromium/content/browser/input/ImeAdapter.java
+++ b/content/public/android/java/src/org/chromium/content/browser/input/ImeAdapter.java
@@ -8,6 +8,10 @@ import android.os.Handler;
 import android.os.ResultReceiver;
 import android.os.SystemClock;
 import android.text.Editable;
+import android.text.SpannableString;
+import android.text.style.BackgroundColorSpan;
+import android.text.style.CharacterStyle;
+import android.text.style.UnderlineSpan;
 import android.view.KeyCharacterMap;
 import android.view.KeyEvent;
 import android.view.View;
@@ -15,6 +19,8 @@ import android.view.inputmethod.EditorInfo;
 
 import com.google.common.annotations.VisibleForTesting;
 
+import java.lang.CharSequence;
+
 import org.chromium.base.CalledByNative;
 import org.chromium.base.JNINamespace;
 
@@ -325,14 +331,15 @@ public class ImeAdapter {
 
     // Calls from Java to C++
 
-    boolean checkCompositionQueueAndCallNative(String text, int newCursorPosition,
+    boolean checkCompositionQueueAndCallNative(CharSequence text, int newCursorPosition,
             boolean isCommit) {
         if (mNativeImeAdapterAndroid == 0) return false;
+        String textStr = text.toString();
 
         // Committing an empty string finishes the current composition.
-        boolean isFinish = text.isEmpty();
+        boolean isFinish = textStr.isEmpty();
         mViewEmbedder.onImeEvent(isFinish);
-        int keyCode = shouldSendKeyEventWithKeyCode(text);
+        int keyCode = shouldSendKeyEventWithKeyCode(textStr);
         long timeStampMs = SystemClock.uptimeMillis();
 
         if (keyCode != COMPOSITION_KEY_CODE) {
@@ -342,9 +349,9 @@ public class ImeAdapter {
             nativeSendSyntheticKeyEvent(mNativeImeAdapterAndroid, sEventTypeRawKeyDown,
                     timeStampMs, keyCode, 0);
             if (isCommit) {
-                nativeCommitText(mNativeImeAdapterAndroid, text);
+                nativeCommitText(mNativeImeAdapterAndroid, textStr);
             } else {
-                nativeSetComposingText(mNativeImeAdapterAndroid, text, newCursorPosition);
+                nativeSetComposingText(mNativeImeAdapterAndroid, text, textStr, newCursorPosition);
             }
             nativeSendSyntheticKeyEvent(mNativeImeAdapterAndroid, sEventTypeKeyUp,
                     timeStampMs, keyCode, 0);
@@ -517,6 +524,25 @@ public class ImeAdapter {
     }
 
     @CalledByNative
+    private void populateUnderlinesFromSpans(CharSequence text, long underlines) {
+        if (!(text instanceof SpannableString)) return;
+
+        SpannableString spannableString = ((SpannableString) text);
+        CharacterStyle spans[] =
+                spannableString.getSpans(0, text.length(), CharacterStyle.class);
+        for (CharacterStyle span : spans) {
+            if (span instanceof BackgroundColorSpan) {
+                nativeAppendBackgroundColorSpan(underlines, spannableString.getSpanStart(span),
+                        spannableString.getSpanEnd(span),
+                        ((BackgroundColorSpan) span).getBackgroundColor());
+            } else if (span instanceof UnderlineSpan) {
+                nativeAppendUnderlineSpan(underlines, spannableString.getSpanStart(span),
+                        spannableString.getSpanEnd(span));
+            }
+        }
+    }
+
+    @CalledByNative
     private void cancelComposition() {
         if (mInputConnection != null) mInputConnection.restartInput();
     }
@@ -535,10 +561,15 @@ public class ImeAdapter {
             int action, int modifiers, long timestampMs, int keyCode, boolean isSystemKey,
             int unicodeChar);
 
-    private native void nativeSetComposingText(long nativeImeAdapterAndroid, String text,
-            int newCursorPosition);
+    private static native void nativeAppendUnderlineSpan(long underlinePtr, int start, int end);
+
+    private static native void nativeAppendBackgroundColorSpan(long underlinePtr, int start,
+            int end, int backgroundColor);
+
+    private native void nativeSetComposingText(long nativeImeAdapterAndroid, CharSequence text,
+            String textStr, int newCursorPosition);
 
-    private native void nativeCommitText(long nativeImeAdapterAndroid, String text);
+    private native void nativeCommitText(long nativeImeAdapterAndroid, String textStr);
 
     private native void nativeFinishComposingText(long nativeImeAdapterAndroid);