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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_ANDROID_SERVICE_TAB_LAUNCHER_H_
#define CHROME_BROWSER_ANDROID_SERVICE_TAB_LAUNCHER_H_
#include "base/android/jni_android.h"
#include "base/containers/id_map.h"
#include "base/functional/callback_forward.h"
#include "base/memory/singleton.h"
namespace content {
class BrowserContext;
struct OpenURLParams;
class WebContents;
}
// Launcher for creating new tabs on Android from a background service, where
// there may not necessarily be an Activity or a tab model at all. When the
// tab has been launched, the user of this class will be informed with the
// content::WebContents instance associated with the tab.
class ServiceTabLauncher {
using TabLaunchedCallback = base::OnceCallback<void(content::WebContents*)>;
public:
// Returns the singleton instance of the service tab launcher.
static ServiceTabLauncher* GetInstance();
ServiceTabLauncher(const ServiceTabLauncher&) = delete;
ServiceTabLauncher& operator=(const ServiceTabLauncher&) = delete;
// Launches a new tab when we're in a Service rather than in an Activity.
// |callback| will be invoked with the resulting content::WebContents* when
// the tab is avialable. This method must only be called from the UI thread.
void LaunchTab(content::BrowserContext* browser_context,
const content::OpenURLParams& params,
TabLaunchedCallback callback);
// To be called when the tab for |request_id| has launched, with the
// associated |web_contents|. The WebContents must not yet have started
// the provisional load for the main frame of the navigation.
void OnTabLaunched(int request_id, content::WebContents* web_contents);
private:
friend struct base::DefaultSingletonTraits<ServiceTabLauncher>;
ServiceTabLauncher();
~ServiceTabLauncher();
base::IDMap<std::unique_ptr<TabLaunchedCallback>> tab_launched_callbacks_;
};
#endif // CHROME_BROWSER_ANDROID_SERVICE_TAB_LAUNCHER_H_
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