Break apart the TabModelBase's JNI calls into its own class

chrome/browser/ui/android/tab_model/tab_model_jni_bridge.cc

+// Copyright 2014 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/tab_model/tab_model_jni_bridge.h"
+
+#include "base/android/jni_android.h"
+#include "base/android/jni_string.h"
+#include "base/android/jni_weak_ref.h"
+#include "chrome/browser/android/tab_android.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/profiles/profile_android.h"
+#include "chrome/browser/profiles/profile_manager.h"
+#include "chrome/browser/tab_contents/tab_util.h"
+#include "chrome/browser/ui/android/tab_model/tab_model_list.h"
+#include "content/public/browser/web_contents.h"
+#include "jni/TabModelJniBridge_jni.h"
+
+using base::android::AttachCurrentThread;
+using base::android::ConvertUTF8ToJavaString;
+using content::WebContents;
+
+namespace {
+
+static Profile* FindProfile(jboolean is_incognito) {
+  if (g_browser_process == NULL ||
+      g_browser_process->profile_manager() == NULL) {
+    LOG(ERROR) << "Browser process or profile manager not initialized";
+    return NULL;
+  }
+  Profile* profile = ProfileManager::GetActiveUserProfile();
+  if (is_incognito)
+    return profile->GetOffTheRecordProfile();
+  return profile;
+}
+
+}  // namespace
+
+TabModelJniBridge::TabModelJniBridge(JNIEnv* env,
+                                     jobject jobj,
+                                     bool is_incognito)
+    : TabModel(FindProfile(is_incognito)),
+      java_object_(env, env->NewWeakGlobalRef(jobj)) {
+  TabModelList::AddTabModel(this);
+  Java_TabModelJniBridge_setNativePtr(env,
+                                      jobj,
+                                      reinterpret_cast<intptr_t>(this));
+}
+
+void TabModelJniBridge::Destroy(JNIEnv* env, jobject obj) {
+  delete this;
+}
+
+ScopedJavaLocalRef<jobject> TabModelJniBridge::GetProfileAndroid(JNIEnv* env,
+                                                                 jobject obj) {
+  ProfileAndroid* profile_android = ProfileAndroid::FromProfile(GetProfile());
+  if (!profile_android)
+    return ScopedJavaLocalRef<jobject>();
+  return profile_android->GetJavaObject();
+}
+
+void TabModelJniBridge::TabAddedToModel(JNIEnv* env,
+                                        jobject obj,
+                                        jobject jtab) {
+  TabAndroid* tab = TabAndroid::GetNativeTab(env, jtab);
+
+  // Tab#initialize() should have been called by now otherwise we can't push
+  // the window id.
+  DCHECK(tab);
+
+  tab->SetWindowSessionID(GetSessionId());
+}
+
+int TabModelJniBridge::GetTabCount() const {
+  JNIEnv* env = AttachCurrentThread();
+  return Java_TabModelJniBridge_getCount(env, java_object_.get(env).obj());
+}
+
+int TabModelJniBridge::GetActiveIndex() const {
+  JNIEnv* env = AttachCurrentThread();
+  return Java_TabModelJniBridge_index(env, java_object_.get(env).obj());
+}
+
+void TabModelJniBridge::CreateTab(WebContents* web_contents,
+                                  int parent_tab_id) {
+  JNIEnv* env = AttachCurrentThread();
+  Java_TabModelJniBridge_createTabWithNativeContents(
+      env, java_object_.get(env).obj(),
+      web_contents->GetBrowserContext()->IsOffTheRecord(),
+      reinterpret_cast<intptr_t>(web_contents), parent_tab_id);
+}
+
+WebContents* TabModelJniBridge::GetWebContentsAt(int index) const {
+  TabAndroid* tab = GetTabAt(index);
+  return tab == NULL ? NULL : tab->web_contents();
+}
+
+TabAndroid* TabModelJniBridge::GetTabAt(int index) const {
+  JNIEnv* env = AttachCurrentThread();
+  ScopedJavaLocalRef<jobject> jtab =
+      Java_TabModelJniBridge_getTabAt(env,
+                                      java_object_.get(env).obj(),
+                                      index);
+
+  return jtab.is_null() ?
+      NULL : TabAndroid::GetNativeTab(env, jtab.obj());
+}
+
+void TabModelJniBridge::SetActiveIndex(int index) {
+  JNIEnv* env = AttachCurrentThread();
+  Java_TabModelJniBridge_setIndex(env, java_object_.get(env).obj(), index);
+}
+
+void TabModelJniBridge::CloseTabAt(int index) {
+  JNIEnv* env = AttachCurrentThread();
+  Java_TabModelJniBridge_closeTabAt(env,
+                                    java_object_.get(env).obj(),
+                                    index);
+}
+
+WebContents* TabModelJniBridge::CreateNewTabForDevTools(
+    const GURL& url) {
+  // TODO(dfalcantara): Change the Java side so that it creates and returns the
+  //                    WebContents, which we can load the URL on and return.
+  JNIEnv* env = AttachCurrentThread();
+  ScopedJavaLocalRef<jstring> jurl = ConvertUTF8ToJavaString(env, url.spec());
+  ScopedJavaLocalRef<jobject> obj =
+      Java_TabModelJniBridge_createNewTabForDevTools(
+          env,
+          java_object_.get(env).obj(),
+          jurl.obj());
+  if (obj.is_null()) {
+    VLOG(0) << "Failed to create java tab";
+    return NULL;
+  }
+  TabAndroid* tab = TabAndroid::GetNativeTab(env, obj.obj());
+  if (!tab) {
+    VLOG(0) << "Failed to create java tab";
+    return NULL;
+  }
+  return tab->web_contents();
+}
+
+bool TabModelJniBridge::IsSessionRestoreInProgress() const {
+  JNIEnv* env = AttachCurrentThread();
+  return Java_TabModelJniBridge_isSessionRestoreInProgress(
+      env, java_object_.get(env).obj());
+}
+
+void TabModelJniBridge::BroadcastSessionRestoreComplete(JNIEnv* env,
+                                                        jobject obj) {
+  TabModel::BroadcastSessionRestoreComplete();
+}
+
+TabModelJniBridge::~TabModelJniBridge() {
+  TabModelList::RemoveTabModel(this);
+  JNIEnv* env = AttachCurrentThread();
+  Java_TabModelJniBridge_clearNativePtr(env, java_object_.get(env).obj());
+}
+
+bool TabModelJniBridge::Register(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}