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// Copyright 2015 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.
#ifndef ASH_CAST_CONFIG_DELEGATE_H_
#define ASH_CAST_CONFIG_DELEGATE_H_
#include <string>
#include <vector>
#include "ash/ash_export.h"
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "base/strings/string16.h"
#include "url/gurl.h"
namespace ash {
// This delegate allows the UI code in ash, e.g. |TrayCastDetailedView|,
// to access the cast extension.
class CastConfigDelegate {
public:
struct ASH_EXPORT Receiver {
Receiver();
~Receiver();
std::string id;
base::string16 name;
};
struct ASH_EXPORT Activity {
// The tab identifier that we are casting. These are the special tab values
// taken from the chromecast extension itself. If an actual tab is being
// casted, then the TabId will be >= 0.
enum TabId {
EXTENSION = -1,
DESKTOP = -2,
DISCOVERED_ACTIVITY = -3,
EXTERNAL_EXTENSION_CLIENT = -4,
// Not in the extension. Used when the extension does not give us a tabId
// (ie, the cast is running from another device).
UNKNOWN = -5
};
Activity();
~Activity();
std::string id;
base::string16 title;
// Is the activity source this computer? ie, are we mirroring the display?
bool is_local_source = false;
// The id for the tab we are casting. Could be one of the TabId values,
// or a value >= 0 that represents that tab index of the tab we are
// casting. We default to casting the desktop, as a tab may not
// necessarily exist.
// TODO(jdufault): Remove tab_id once the CastConfigDelegateChromeos is
// gone. See crbug.com/551132.
int tab_id = TabId::DESKTOP;
};
struct ASH_EXPORT ReceiverAndActivity {
ReceiverAndActivity();
~ReceiverAndActivity();
Receiver receiver;
Activity activity;
};
using ReceiversAndActivities = std::vector<ReceiverAndActivity>;
class ASH_EXPORT Observer {
public:
// Invoked whenever there is new receiver or activity information available.
virtual void OnDevicesUpdated(const ReceiversAndActivities& devices) = 0;
protected:
virtual ~Observer() {}
private:
DISALLOW_ASSIGN(Observer);
};
virtual ~CastConfigDelegate() {}
// Returns true if cast extension is installed.
// TODO(jdufault): Remove this function once the CastConfigDelegateChromeos is
// gone. See crbug.com/551132.
virtual bool HasCastExtension() const = 0;
// Request fresh data from the backend. When the data is available, all
// registered observers will get called.
virtual void RequestDeviceRefresh() = 0;
// Cast to a receiver specified by |receiver_id|.
virtual void CastToReceiver(const std::string& receiver_id) = 0;
// Stop an ongoing cast (this should be a user initiated stop). |activity_id|
// is the identifier of the activity/route that should be stopped.
virtual void StopCasting(const std::string& activity_id) = 0;
// Does the device have a settings page?
// TODO(jdufault): Remove this function once the CastConfigDelegateChromeos is
// gone. See crbug.com/551132.
virtual bool HasOptions() const = 0;
// Opens Options page for cast.
// TODO(jdufault): Remove this function once the CastConfigDelegateChromeos is
// gone. See crbug.com/551132.
virtual void LaunchCastOptions() = 0;
// Add or remove an observer.
virtual void AddObserver(Observer* observer) = 0;
virtual void RemoveObserver(Observer* observer) = 0;
private:
DISALLOW_ASSIGN(CastConfigDelegate);
};
} // namespace ash
#endif // ASH_CAST_CONFIG_DELEGATE_H_
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