WebView autofill implementation

components/autofill/core/browser/form_field_data_android.cc

Index: components/autofill/core/browser/form_field_data_android.cc
diff --git a/components/autofill/core/browser/form_field_data_android.cc b/components/autofill/core/browser/form_field_data_android.cc
new file mode 100644
index 0000000000000000000000000000000000000000..57f4d165185a41ba39a46a3ec5984b7fd795a861
--- /dev/null
+++ b/components/autofill/core/browser/form_field_data_android.cc
@@ -0,0 +1,81 @@
+// Copyright 2017 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.
+
+#include "components/autofill/core/browser/form_field_data_android.h"
+
+#include "base/android/jni_string.h"
+#include "content/public/browser/browser_thread.h"
+#include "jni/FormFieldData_jni.h"
+
+using base::android::AttachCurrentThread;
+using base::android::ConvertJavaStringToUTF16;
+using base::android::ConvertUTF16ToJavaString;
+using base::android::ConvertUTF8ToJavaString;
+using base::android::JavaParamRef;
+using base::android::JavaRef;
+using base::android::ScopedJavaGlobalRef;
+using base::android::ScopedJavaLocalRef;
+using content::BrowserThread;
+
+namespace autofill {
+
+FormFieldDataAndroid::FormFieldDataAndroid(FormFieldData* field)
+    : field_ptr_(field) {}
+
+ScopedJavaLocalRef<jobject> FormFieldDataAndroid::GetJavaPeer() {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+  JNIEnv* env = AttachCurrentThread();
+  ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
+  if (obj.is_null()) {
+    ScopedJavaLocalRef<jstring> jname =
+        ConvertUTF16ToJavaString(env, field_ptr_->name);
+    ScopedJavaLocalRef<jstring> jlabel =
+        ConvertUTF16ToJavaString(env, field_ptr_->label);
+    ScopedJavaLocalRef<jstring> jvalue =
+        ConvertUTF16ToJavaString(env, field_ptr_->value);
+    ScopedJavaLocalRef<jstring> jautocompleteAttr =
+        ConvertUTF8ToJavaString(env, field_ptr_->autocomplete_attribute);
+    ScopedJavaLocalRef<jstring> jplaceholder =
+        ConvertUTF16ToJavaString(env, field_ptr_->placeholder);
+    ScopedJavaLocalRef<jstring> jid =
+        ConvertUTF16ToJavaString(env, field_ptr_->id);
+    ScopedJavaLocalRef<jstring> jtype =
+        ConvertUTF8ToJavaString(env, field_ptr_->form_control_type);
+
+    obj = Java_FormFieldData_createFormFieldData(
+        env, jname, jlabel, jvalue, jautocompleteAttr,
+        field_ptr_->should_autocomplete, jplaceholder, jtype, jid);
+    java_ref_ = JavaObjectWeakGlobalRef(env, obj);
+  }
+  return obj;
+}
+
+void FormFieldDataAndroid::PullAutofillValue() {

[sgurun-gerrit only, 2017/04/28 01:46:40]

make names match with java, i.e. getValue?

[michaelbai, 2017/05/03 04:43:59]

Done.

+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+  JNIEnv* env = AttachCurrentThread();
+
+  ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
+  if (obj.is_null())
+    return;
+  ScopedJavaLocalRef<jstring> jvalue = Java_FormFieldData_getValue(env, obj);
+  if (jvalue.is_null())
+    return;
+  field_ptr_->value = ConvertJavaStringToUTF16(env, jvalue);
+  field_ptr_->is_autofilled = true;
+}
+
+void FormFieldDataAndroid::OnTextFieldDidChange(const base::string16& value) {
+  field_ptr_->value = value;
+  field_ptr_->is_autofilled = false;
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);

[sgurun-gerrit only, 2017/04/28 01:46:40]

nit: move dcheck ahead 

[michaelbai, 2017/05/03 04:43:59]

Done.

+  JNIEnv* env = AttachCurrentThread();
+  ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
+  if (obj.is_null())
+    return;
+
+  Java_FormFieldData_updataValue(env, obj,

[sgurun-gerrit only, 2017/04/28 01:46:40]

nit: s/updata/update/

[michaelbai, 2017/05/03 04:43:59]

Done.

+                                 ConvertUTF16ToJavaString(env, value));
+}
+
+}  // namespace autofil