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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_PERMISSIONS_CONTEXTS_CAMERA_PAN_TILT_ZOOM_PERMISSION_CONTEXT_H_
#define COMPONENTS_PERMISSIONS_CONTEXTS_CAMERA_PAN_TILT_ZOOM_PERMISSION_CONTEXT_H_
#include <memory>
#include "base/memory/raw_ptr.h"
#include "build/build_config.h"
#include "components/content_settings/core/browser/host_content_settings_map.h"
#include "components/permissions/content_setting_permission_context_base.h"
namespace webrtc {
class MediaStreamDeviceEnumerator;
} // namespace webrtc
namespace permissions {
// Manage user permissions that only control camera movement (pan, tilt, and
// zoom). Those permissions are automatically reset when the "regular" camera
// permission is blocked or reset.
class CameraPanTiltZoomPermissionContext
: public permissions::ContentSettingPermissionContextBase {
public:
// Delegate which allows embedders to modify the logic of this permission
// context.
class Delegate {
public:
virtual ~Delegate() = default;
// Allows the delegate to override the context's
// GetPermissionStatusInternal() logic. If this returns true, the base
// context's GetPermissionStatusInternal() will not be called.
virtual bool GetPermissionStatusInternal(
const GURL& requesting_origin,
const GURL& embedding_origin,
ContentSetting* content_setting_result) = 0;
};
// Constructs a CameraPanTiltZoomPermissionContext for |browser_context|. Note
// that the passed in |device_enumerator| must outlive |this|.
CameraPanTiltZoomPermissionContext(
content::BrowserContext* browser_context,
std::unique_ptr<Delegate> delegate,
const webrtc::MediaStreamDeviceEnumerator* device_enumerator);
~CameraPanTiltZoomPermissionContext() override;
CameraPanTiltZoomPermissionContext(
const CameraPanTiltZoomPermissionContext&) = delete;
CameraPanTiltZoomPermissionContext& operator=(
const CameraPanTiltZoomPermissionContext&) = delete;
private:
// PermissionContextBase
void RequestPermission(
std::unique_ptr<PermissionRequestData> request_data,
permissions::BrowserPermissionCallback callback) override;
// ContentSettingPermissionContextBase
ContentSetting GetContentSettingStatusInternal(
content::RenderFrameHost* render_frame_host,
const GURL& requesting_origin,
const GURL& embedding_origin) const override;
// content_settings::Observer
void OnContentSettingChanged(
const ContentSettingsPattern& primary_pattern,
const ContentSettingsPattern& secondary_pattern,
ContentSettingsTypeSet content_type_set) override;
// Returns true if at least one video capture device has PTZ capabilities.
// Otherwise returns false.
bool HasAvailableCameraPtzDevices() const;
std::unique_ptr<Delegate> delegate_;
raw_ptr<HostContentSettingsMap> host_content_settings_map_;
bool updating_camera_ptz_permission_ = false;
bool updating_mediastream_camera_permission_ = false;
// Enumerates available media devices. Must outlive |this|.
const raw_ptr<const webrtc::MediaStreamDeviceEnumerator> device_enumerator_;
};
} // namespace permissions
#endif // COMPONENTS_PERMISSIONS_CONTEXTS_CAMERA_PAN_TILT_ZOOM_PERMISSION_CONTEXT_H_
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