| // Copyright 2019 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 THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_INSPECTOR_HELPER_MIXIN_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_INSPECTOR_HELPER_MIXIN_H_ |
| |
| #include <memory> |
| #include "third_party/blink/renderer/platform/heap/handle.h" |
| #include "third_party/blink/renderer/platform/wtf/text/wtf_string.h" |
| |
| namespace blink { |
| |
| class AudioGraphTracer; |
| |
| // Supports the event reporting between Blink WebAudio module and the |
| // associated DevTool's inspector agent. Generates an UUID for each element, |
| // and keeps an UUID for a parent element. |
| class InspectorHelperMixin : public GarbageCollectedMixin { |
| public: |
| explicit InspectorHelperMixin(AudioGraphTracer&, const String& parent_uuid); |
| ~InspectorHelperMixin() = default; |
| |
| AudioGraphTracer& GraphTracer() { return *graph_tracer_; } |
| const String& Uuid() const { return uuid_; } |
| const String& ParentUuid() const { return parent_uuid_; } |
| |
| // Called by the subclass to report the construction of graph objects |
| // (BaseAudioContext, AudioNode, AudioParam, AudioListener) to the inspector |
| // agent. Note that the devtools frontend will be expecting the parent object |
| // to be the first in this call. |
| virtual void ReportDidCreate() = 0; |
| |
| // Called by the subclass to report the construction of graph objects |
| // (BaseAudioContext, AudioNode, AudioParam, AudioListener) to the inspector |
| // agent. Note that the devtools frontend will be expecting the parent object |
| // to be the last in this call. |
| virtual void ReportWillBeDestroyed() = 0; |
| |
| void Trace(Visitor*) const override; |
| |
| private: |
| Member<AudioGraphTracer> graph_tracer_; |
| const String uuid_; |
| const String parent_uuid_; |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_INSPECTOR_HELPER_MIXIN_H_ |