| // Copyright 2022 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_FUCHSIA_COMPONENT_SUPPORT_ANNOTATIONS_MANAGER_H_ |
| #define COMPONENTS_FUCHSIA_COMPONENT_SUPPORT_ANNOTATIONS_MANAGER_H_ |
| |
| #include <fuchsia/element/cpp/fidl.h> |
| #include <lib/fidl/cpp/binding_set.h> |
| |
| #include <memory> |
| #include <vector> |
| |
| #include "base/containers/flat_map.h" |
| #include "base/strings/string_piece_forward.h" |
| |
| namespace fuchsia_component_support { |
| |
| // Constructs an Annotation with the specified `value` set, either directly |
| // as `text`, or in a VMO `buffer`, depending on its size. |
| fuchsia::element::Annotation MakeAnnotation(base::StringPiece key, |
| base::StringPiece value); |
| |
| // Helper functions for constructing numeric and boolean annotations. |
| fuchsia::element::Annotation MakeBoolAnnotation(base::StringPiece key, |
| bool value); |
| fuchsia::element::Annotation MakeIntAnnotation(base::StringPiece key, |
| int value); |
| |
| struct AnnotationKeyCompare { |
| bool operator()(const fuchsia::element::AnnotationKey& key1, |
| const fuchsia::element::AnnotationKey& key2) const; |
| }; |
| |
| // Manages annotations associated with a session Element, or View. |
| class AnnotationsManager { |
| public: |
| AnnotationsManager(); |
| ~AnnotationsManager(); |
| |
| // Sets, updates, or deletes one or more Annotations. |
| // Returns false if the supplied inputs are invalid according to the |
| // `fuchsia.element.AnnotationController.UpdateAnnotations()` API |
| // specification, e.g. if `to_update` contains duplicate entries. |
| bool UpdateAnnotations( |
| std::vector<fuchsia::element::Annotation> to_set, |
| std::vector<fuchsia::element::AnnotationKey> to_delete = {}); |
| |
| // Returns a copy of the current set of Annotations. |
| std::vector<fuchsia::element::Annotation> GetAnnotations() const; |
| |
| // Connects a new `AnnotationController` client to this manager. |
| void Connect( |
| fidl::InterfaceRequest<fuchsia::element::AnnotationController> request); |
| |
| private: |
| class ControllerImpl; |
| |
| // Holds all currently-active annotations. |
| base::flat_map<fuchsia::element::AnnotationKey, |
| fuchsia::element::AnnotationValue, |
| AnnotationKeyCompare> |
| annotations_; |
| |
| // Bindings to active clients of this instance. |
| fidl::BindingSet<fuchsia::element::AnnotationController, |
| std::unique_ptr<ControllerImpl>> |
| bindings_; |
| }; |
| |
| } // namespace fuchsia_component_support |
| |
| #endif // COMPONENTS_FUCHSIA_COMPONENT_SUPPORT_ANNOTATIONS_MANAGER_H_ |