Support InputMethodManager#updateCursorAnchorInfo for Android 5.0

content/browser/renderer_host/ime_adapter_android.cc

Index: content/browser/renderer_host/ime_adapter_android.cc
diff --git a/content/browser/renderer_host/ime_adapter_android.cc b/content/browser/renderer_host/ime_adapter_android.cc
index ac820f5765c3a7bf214293e8271e7bba7951f972..c98560afe598e4b517be20a3e10e0ae564c24576 100644
--- a/content/browser/renderer_host/ime_adapter_android.cc
+++ b/content/browser/renderer_host/ime_adapter_android.cc
@@ -237,6 +237,36 @@ void ImeAdapterAndroid::FocusedNodeChanged(bool is_editable_node) {
   }
 }
 
+void ImeAdapterAndroid::SetCharacterBounds(
+    const std::vector<gfx::Rect>& character_bounds) {
+  JNIEnv* env = AttachCurrentThread();
+  base::android::ScopedJavaLocalRef<jobject> obj = java_ime_adapter_.get(env);
+  if (obj.is_null())
+    return;
+
+  const size_t coordinates_array_size = character_bounds.size() * 4;
+  base::android::ScopedJavaLocalRef<jfloatArray> coordinates_dest_array(
+      env, env->NewFloatArray(coordinates_array_size));
+  if (coordinates_dest_array.is_null())
+    return;
+
+  scoped_ptr<jfloat[]> coordinates_array(new jfloat[coordinates_array_size]);
+  for (size_t i = 0; i < character_bounds.size(); ++i) {
+    const gfx::Rect& rect = character_bounds[i];
+    const size_t coordinates_array_index = i * 4;
+    coordinates_array[coordinates_array_index + 0] = rect.x();
+    coordinates_array[coordinates_array_index + 1] = rect.y();
+    coordinates_array[coordinates_array_index + 2] = rect.right();
+    coordinates_array[coordinates_array_index + 3] = rect.bottom();
+  }
+  // TODO(yukawa): Consider to move this to base/android/jni_array.h
+  env->SetFloatArrayRegion(coordinates_dest_array.obj(), 0,

[jdduke (slow), 2015/02/09 17:01:17]

Should we add a |ToJavaFloatArray| in base/android/jni_array?

[yukawa, 2015/02/10 17:24:54]

Done.

+                           coordinates_array_size, coordinates_array.get());
+  base::android::CheckException(env);
+  Java_ImeAdapter_setCharacterBounds(env, obj.obj(),
+                                     coordinates_dest_array.obj());
+}
+
 void ImeAdapterAndroid::SetEditableSelectionOffsets(JNIEnv*, jobject,
                                                     int start, int end) {
   RenderFrameHost* rfh = GetFocusedFrame();