[Offline Pages] Added OfflinePageEvaluationBridge for testing.

chrome/browser/android/offline_pages/evaluation/offline_page_evaluation_bridge.cc

+// Copyright 2016 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/android/offline_pages/evaluation/offline_page_evaluation_bridge.h"
+
+#include "base/android/callback_android.h"
+#include "base/android/jni_android.h"
+#include "base/android/jni_string.h"
+#include "chrome/browser/android/offline_pages/offline_page_model_factory.h"
+#include "chrome/browser/android/offline_pages/request_coordinator_factory.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/profiles/profile_android.h"
+#include "components/offline_pages/background/request_coordinator.h"
+#include "components/offline_pages/background/request_notifier.h"
+#include "components/offline_pages/background/save_page_request.h"
+#include "components/offline_pages/offline_page_item.h"
+#include "components/offline_pages/offline_page_model.h"
+#include "content/public/browser/browser_context.h"
+#include "jni/OfflinePageEvaluationBridge_jni.h"
+#include "jni/SavePageRequest_jni.h"
+
+using base::android::ConvertJavaStringToUTF8;
+using base::android::ConvertUTF8ToJavaString;
+using base::android::JavaParamRef;
+using base::android::ScopedJavaGlobalRef;
+using base::android::ScopedJavaLocalRef;
+
+namespace offline_pages {
+namespace android {
+
+namespace {
+
+void ToJavaOfflinePageList(JNIEnv* env,
+                           jobject j_result_obj,
+                           const std::vector<OfflinePageItem>& offline_pages) {
+  for (const OfflinePageItem& offline_page : offline_pages) {
+    Java_OfflinePageEvaluationBridge_createOfflinePageAndAddToList(
+        env, j_result_obj,
+        ConvertUTF8ToJavaString(env, offline_page.url.spec()),
+        offline_page.offline_id,
+        ConvertUTF8ToJavaString(env, offline_page.client_id.name_space),
+        ConvertUTF8ToJavaString(env, offline_page.client_id.id),
+        ConvertUTF8ToJavaString(env, offline_page.GetOfflineURL().spec()),
+        ConvertUTF8ToJavaString(env, offline_page.file_path.value()),
+        offline_page.file_size, offline_page.creation_time.ToJavaTime(),
+        offline_page.access_count, offline_page.last_access_time.ToJavaTime());
+  }
+}
+
+ScopedJavaLocalRef<jobject> ToJavaSavePageRequest(
+    JNIEnv* env,
+    const SavePageRequest& request) {
+  return Java_SavePageRequest_create(
+      env, static_cast<int>(request.request_state()), request.request_id(),
+      ConvertUTF8ToJavaString(env, request.url().spec()),
+      ConvertUTF8ToJavaString(env, request.client_id().name_space),
+      ConvertUTF8ToJavaString(env, request.client_id().id));
+}
+
+void GetAllPagesCallback(
+    const ScopedJavaGlobalRef<jobject>& j_result_obj,
+    const ScopedJavaGlobalRef<jobject>& j_callback_obj,
+    const OfflinePageModel::MultipleOfflinePageItemResult& result) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  ToJavaOfflinePageList(env, j_result_obj.obj(), result);
+  base::android::RunCallbackAndroid(j_callback_obj, j_result_obj);
+}
+
+void OnPushRequestsDone(const ScopedJavaGlobalRef<jobject>& j_callback_obj,
+                        bool result) {
+  base::android::RunCallbackAndroid(j_callback_obj, result);
+}
+
+}  // namespace
+
+static ScopedJavaLocalRef<jobject> GetBridgeForProfile(
+    JNIEnv* env,
+    const JavaParamRef<jclass>& jcaller,
+    const JavaParamRef<jobject>& j_profile) {
+  Profile* profile = ProfileAndroid::FromProfileAndroid(j_profile);
+
+  OfflinePageModel* offline_page_model =
+      OfflinePageModelFactory::GetForBrowserContext(profile);
+
+  RequestCoordinator* request_coordinator =
+      RequestCoordinatorFactory::GetForBrowserContext(profile);
+
+  if (offline_page_model == nullptr || request_coordinator == nullptr)
+    return ScopedJavaLocalRef<jobject>();
+
+  OfflinePageEvaluationBridge* bridge = new OfflinePageEvaluationBridge(
+      env, profile, offline_page_model, request_coordinator);
+
+  return ScopedJavaLocalRef<jobject>(bridge->java_ref());
+}
+
+// static
+bool OfflinePageEvaluationBridge::Register(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
+
+OfflinePageEvaluationBridge::OfflinePageEvaluationBridge(
+    JNIEnv* env,
+    content::BrowserContext* browser_context,
+    OfflinePageModel* offline_page_model,
+    RequestCoordinator* request_coordinator)
+    : browser_context_(browser_context),
+      offline_page_model_(offline_page_model),
+      request_coordinator_(request_coordinator) {
+  ScopedJavaLocalRef<jobject> j_offline_page_evaluation_bridge =
+      Java_OfflinePageEvaluationBridge_create(env,
+                                              reinterpret_cast<jlong>(this));
+  java_ref_.Reset(j_offline_page_evaluation_bridge);
+
+  NotifyIfDoneLoading();
+  offline_page_model_->AddObserver(this);
+  request_coordinator_->AddObserver(this);
+}
+
+OfflinePageEvaluationBridge::~OfflinePageEvaluationBridge() {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_OfflinePageEvaluationBridge_offlinePageEvaluationBridgeDestroyed(
+      env, java_ref_);
+}
+
+// Implement OfflinePageModel::Observer
+void OfflinePageEvaluationBridge::OfflinePageModelLoaded(
+    OfflinePageModel* model) {
+  DCHECK_EQ(offline_page_model_, model);
+  NotifyIfDoneLoading();
+}
+
+void OfflinePageEvaluationBridge::OfflinePageModelChanged(
+    OfflinePageModel* model) {}
+
+void OfflinePageEvaluationBridge::OfflinePageDeleted(
+    int64_t offline_id,
+    const ClientId& client_id) {}
+
+// Implement RequestCoordinator::Observer
+void OfflinePageEvaluationBridge::OnAdded(const SavePageRequest& request) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_OfflinePageEvaluationBridge_savePageRequestAdded(
+      env, java_ref_, ToJavaSavePageRequest(env, request));
+}
+
+void OfflinePageEvaluationBridge::OnCompleted(
+    const SavePageRequest& request,
+    RequestNotifier::BackgroundSavePageResult status) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_OfflinePageEvaluationBridge_savePageRequestCompleted(
+      env, java_ref_, ToJavaSavePageRequest(env, request),
+      static_cast<int>(status));
+}
+
+void OfflinePageEvaluationBridge::OnChanged(const SavePageRequest& request) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_OfflinePageEvaluationBridge_savePageRequestChanged(
+      env, java_ref_, ToJavaSavePageRequest(env, request));
+}
+
+void OfflinePageEvaluationBridge::GetAllPages(
+    JNIEnv* env,
+    const JavaParamRef<jobject>& obj,
+    const JavaParamRef<jobject>& j_result_obj,
+    const JavaParamRef<jobject>& j_callback_obj) {
+  DCHECK(j_result_obj);
+  DCHECK(j_callback_obj);
+
+  ScopedJavaGlobalRef<jobject> j_result_ref;
+  j_result_ref.Reset(env, j_result_obj);
+
+  ScopedJavaGlobalRef<jobject> j_callback_ref;
+  j_callback_ref.Reset(env, j_callback_obj);
+
+  offline_page_model_->GetAllPages(
+      base::Bind(&GetAllPagesCallback, j_result_ref, j_callback_ref));
+}
+
+void OfflinePageEvaluationBridge::PushRequestProcessing(
+    JNIEnv* env,
+    const base::android::JavaParamRef<jobject>& obj,
+    const base::android::JavaParamRef<jobject>& j_callback_obj) {
+  ScopedJavaGlobalRef<jobject> j_callback_ref(j_callback_obj);
+  if (!request_coordinator_) {

[Pete Williamson, 2016/10/04 23:50:55]

How could we ever end up with no request coordinator?  We get one from the
profile when we create the bridge, right?  If there is none, we should fail at
creation time somehow.  We don't check this in other places.  Maybe have a
DCHECK instead of a runtime check.

[romax, 2016/10/11 21:46:30]

Done.

+    base::android::RunCallbackAndroid(j_callback_obj, false);
+    return;
+  }
+  net::NetworkChangeNotifier::ConnectionType connection =
+      net::NetworkChangeNotifier::GetConnectionType();
+  DeviceConditions device_conditions(false, 0, connection);
+  request_coordinator_->StartProcessing(
+      device_conditions, base::Bind(&OnPushRequestsDone, j_callback_ref));
+}
+
+void OfflinePageEvaluationBridge::SavePageLater(
+    JNIEnv* env,
+    const JavaParamRef<jobject>& obj,
+    const JavaParamRef<jstring>& j_url,
+    const JavaParamRef<jstring>& j_namespace,
+    const JavaParamRef<jstring>& j_client_id,
+    jboolean user_requested) {
+  offline_pages::ClientId client_id;
+  client_id.name_space = ConvertJavaStringToUTF8(env, j_namespace);
+  client_id.id = ConvertJavaStringToUTF8(env, j_client_id);
+
+  request_coordinator_->SavePageLater(GURL(ConvertJavaStringToUTF8(env, j_url)),
+                                      client_id,
+                                      static_cast<bool>(user_requested));
+}
+
+void OfflinePageEvaluationBridge::NotifyIfDoneLoading() const {
+  if (!offline_page_model_->is_loaded())
+    return;
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_OfflinePageEvaluationBridge_offlinePageModelLoaded(env, java_ref_);
+}
+
+}  // namespace android
+}  // namespace offline_pages