chrome/browser/android/recently_closed_tabs_bridge.h

   1 // Copyright 2013 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_RECENTLY_CLOSED_TABS_BRIDGE_H_
   6 #define CHROME_BROWSER_ANDROID_RECENTLY_CLOSED_TABS_BRIDGE_H_
   7
   8 #include <jni.h>
   9
  10 #include "base/android/scoped_java_ref.h"
  11 #include "base/compiler_specific.h"
  12 #include "components/sessions/core/tab_restore_service_observer.h"
  13
  14 class Profile;
  15
  16 // Provides the list of recently closed tabs to Java.
  17 class RecentlyClosedTabsBridge : public sessions::TabRestoreServiceObserver {
  18  public:
  19   explicit RecentlyClosedTabsBridge(Profile* profile);
  20
  21   void Destroy(JNIEnv* env, jobject obj);
  22   void SetRecentlyClosedCallback(JNIEnv* env, jobject obj, jobject jcallback);
  23   jboolean GetRecentlyClosedTabs(JNIEnv* env,
  24                                  jobject obj,
  25                                  jobject jtabs,
  26                                  jint max_tab_count);
  27   jboolean OpenRecentlyClosedTab(JNIEnv* env,
  28                                  jobject obj,
  29                                  jobject jtab,
  30                                  jint tab_id,
  31                                  jint j_disposition);
  32   void ClearRecentlyClosedTabs(JNIEnv* env, jobject obj);
  33
  34   // Observer callback for TabRestoreServiceObserver. Notifies the registered
  35   // callback that the recently closed tabs list has changed.
  36   void TabRestoreServiceChanged(sessions::TabRestoreService* service) override;
  37
  38   // Observer callback when our associated TabRestoreService is destroyed.
  39   void TabRestoreServiceDestroyed(
  40       sessions::TabRestoreService* service) override;
  41
  42   // Registers JNI methods.
  43   static bool Register(JNIEnv* env);
  44
  45  private:
  46   ~RecentlyClosedTabsBridge() override;
  47
  48   // Construct and initialize tab_restore_service_ if it's NULL.
  49   // tab_restore_service_ may still be NULL, however, in incognito mode.
  50   void EnsureTabRestoreService();
  51
  52   // The callback to be notified when the list of recently closed tabs changes.
  53   base::android::ScopedJavaGlobalRef<jobject> callback_;
  54
  55   // The profile whose recently closed tabs are being monitored.
  56   Profile* profile_;
  57
  58   // TabRestoreService that we are observing.
  59   sessions::TabRestoreService* tab_restore_service_;
  60
  61   DISALLOW_COPY_AND_ASSIGN(RecentlyClosedTabsBridge);
  62 };
  63
  64 #endif  // CHROME_BROWSER_ANDROID_RECENTLY_CLOSED_TABS_BRIDGE_H_