Android - Introduce "keyboard accessory" for Autofill suggestions.

chrome/browser/ui/android/autofill/autofill_keyboard_accessory_view.cc

+// Copyright (c) 2015 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 "chrome/browser/ui/android/autofill/autofill_keyboard_accessory_view.h"
+
+#include "base/android/jni_android.h"
+#include "base/android/jni_string.h"
+#include "chrome/browser/android/resource_mapper.h"
+#include "chrome/browser/ui/android/window_android_helper.h"
+#include "chrome/browser/ui/autofill/autofill_popup_controller.h"
+#include "components/autofill/core/browser/suggestion.h"
+#include "jni/AutofillKeyboardAccessoryBridge_jni.h"
+#include "ui/android/view_android.h"
+#include "ui/android/window_android.h"
+#include "ui/base/resource/resource_bundle.h"
+#include "ui/gfx/geometry/rect.h"
+
+namespace autofill {
+
+AutofillKeyboardAccessoryView::AutofillKeyboardAccessoryView(
+    AutofillPopupController* controller)
+    : controller_(controller) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  java_object_.Reset(Java_AutofillKeyboardAccessoryBridge_create(env));
+}
+
+AutofillKeyboardAccessoryView::~AutofillKeyboardAccessoryView() {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_AutofillKeyboardAccessoryBridge_nativeViewDestroyed(
+      env, java_object_.obj());
+}
+
+void AutofillKeyboardAccessoryView::Show() {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  ui::ViewAndroid* view_android = controller_->container_view();
+  DCHECK(view_android);
+  Java_AutofillKeyboardAccessoryBridge_init(
+      env, java_object_.obj(),
+      reinterpret_cast<intptr_t>(this),
+      view_android->GetWindowAndroid()->GetJavaObject().obj());
+
+  UpdateBoundsAndRedrawPopup();
+}
+
+void AutofillKeyboardAccessoryView::Hide() {
+  controller_ = nullptr;
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_AutofillKeyboardAccessoryBridge_dismiss(env, java_object_.obj());
+}
+
+void AutofillKeyboardAccessoryView::UpdateBoundsAndRedrawPopup() {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  size_t count = controller_->GetLineCount();
+  ScopedJavaLocalRef<jobjectArray> data_array =
+      Java_AutofillKeyboardAccessoryBridge_createAutofillSuggestionArray(env,
+                                                                         count);
+
+  for (size_t i = 0; i < count; ++i) {
+    ScopedJavaLocalRef<jstring> value = base::android::ConvertUTF16ToJavaString(
+        env, controller_->GetElidedValueAt(i));
+    ScopedJavaLocalRef<jstring> label = base::android::ConvertUTF16ToJavaString(
+        env, controller_->GetElidedLabelAt(i));
+    int android_icon_id = 0;
+
+    const autofill::Suggestion& suggestion = controller_->GetSuggestionAt(i);
+    if (!suggestion.icon.empty()) {
+      android_icon_id = ResourceMapper::MapFromChromiumId(
+          controller_->GetIconResourceID(suggestion.icon));
+    }
+
+    Java_AutofillKeyboardAccessoryBridge_addToAutofillSuggestionArray(
+        env, data_array.obj(), i, value.obj(), label.obj(), android_icon_id,
+        suggestion.frontend_id);
+  }
+
+  Java_AutofillKeyboardAccessoryBridge_show(
+      env, java_object_.obj(), data_array.obj(), controller_->IsRTL());
+}
+
+void AutofillKeyboardAccessoryView::SuggestionSelected(JNIEnv* env,
+                                                       jobject obj,
+                                                       jint list_index) {
+  // Race: Hide() may have already run.
+  if (controller_)
+    controller_->AcceptSuggestion(list_index);
+}
+
+void AutofillKeyboardAccessoryView::ViewDismissed(JNIEnv* env, jobject obj) {
+  if (controller_)
+    controller_->ViewDestroyed();
+
+  delete this;
+}
+
+void AutofillKeyboardAccessoryView::InvalidateRow(size_t) {
+}
+
+// static
+bool AutofillKeyboardAccessoryView::RegisterAutofillKeyboardAccessoryView(
+    JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
+
+}  // namespace autofill