chrome/browser/android/service_tab_launcher.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_ANDROID_SERVICE_TAB_LAUNCHER_H_
   6 #define CHROME_BROWSER_ANDROID_SERVICE_TAB_LAUNCHER_H_
   7
   8 #include "base/android/jni_android.h"
   9 #include "base/callback_forward.h"
  10 #include "base/memory/singleton.h"
  11
  12 namespace content {
  13 class BrowserContext;
  14 struct OpenURLParams;
  15 class WebContents;
  16 }
  17
  18 namespace chrome {
  19 namespace android {
  20
  21 // Launcher for creating new tabs on Android from a background service, where
  22 // there may not necessarily be an Activity or a tab model at all.
  23 class ServiceTabLauncher {
  24  public:
  25   // Returns the singleton instance of the service tab launcher.
  26   static ServiceTabLauncher* GetInstance();
  27
  28   // Launches a new tab when we're in a Service rather than in an Activity.
  29   // |callback| will be invoked with the resulting content::WebContents* when
  30   // the tab is avialable. This method must only be called from the UI thread.
  31   void LaunchTab(content::BrowserContext* browser_context,
  32                  const content::OpenURLParams& params,
  33                  const base::Callback<void(content::WebContents*)>& callback);
  34
  35   static bool RegisterServiceTabLauncher(JNIEnv* env);
  36
  37  private:
  38   friend struct DefaultSingletonTraits<ServiceTabLauncher>;
  39
  40   ServiceTabLauncher();
  41   ~ServiceTabLauncher();
  42
  43   base::android::ScopedJavaGlobalRef<jobject> java_object_;
  44
  45   DISALLOW_COPY_AND_ASSIGN(ServiceTabLauncher);
  46 };
  47
  48 }  // namespace android
  49 }  // namespace chrome
  50
  51 #endif  // CHROME_BROWSER_ANDROID_SERVICE_TAB_LAUNCHER_H_