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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/id_map.h" | |
11 #include "base/memory/singleton.h" | |
12 | |
13 namespace content { | |
14 class BrowserContext; | |
15 struct OpenURLParams; | |
16 class WebContents; | |
17 } | |
18 | |
19 namespace chrome { | |
20 namespace android { | |
21 | |
22 // Launcher for creating new tabs on Android from a background service, where | |
23 // there may not necessarily be an Activity or a tab model at all. When the | |
24 // tab has been launched, the user of this class will be informed with the | |
25 // content::WebContents instance associated with the tab. | |
26 class ServiceTabLauncher { | |
27 using TabLaunchedCallback = base::Callback<void(content::WebContents*)>; | |
28 | |
29 public: | |
30 // Returns the singleton instance of the service tab launcher. | |
31 static ServiceTabLauncher* GetInstance(); | |
32 | |
33 // Launches a new tab when we're in a Service rather than in an Activity. | |
34 // |callback| will be invoked with the resulting content::WebContents* when | |
35 // the tab is avialable. This method must only be called from the UI thread. | |
36 void LaunchTab(content::BrowserContext* browser_context, | |
37 const content::OpenURLParams& params, | |
38 const TabLaunchedCallback& callback); | |
39 | |
40 // To be called when the tab for |request_id| has launched, with the | |
41 // associated |web_contents|. The WebContents must not yet have started | |
42 // the provisional load for the main frame of the navigation. | |
43 void OnTabLaunched(int request_id, content::WebContents* web_contents); | |
44 | |
45 static bool RegisterServiceTabLauncher(JNIEnv* env); | |
46 | |
47 private: | |
48 friend struct DefaultSingletonTraits<ServiceTabLauncher>; | |
49 | |
50 ServiceTabLauncher(); | |
51 ~ServiceTabLauncher(); | |
52 | |
53 IDMap<TabLaunchedCallback> tab_launched_callbacks_; | |
54 | |
55 base::android::ScopedJavaGlobalRef<jobject> java_object_; | |
56 | |
57 DISALLOW_COPY_AND_ASSIGN(ServiceTabLauncher); | |
58 }; | |
59 | |
60 } // namespace android | |
61 } // namespace chrome | |
62 | |
63 #endif // CHROME_BROWSER_ANDROID_SERVICE_TAB_LAUNCHER_H_ | |
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