public gin_helper::EventEmitterMixin<Debugger>,

public content::DevToolsAgentHostClient,

public content::WebContentsObserver {

public:

static gin::Handle<Debugger> Create(v8::Isolate* isolate,

content::WebContents* web_contents);

// gin::Wrappable

static gin::WrapperInfo kWrapperInfo;

gin::ObjectTemplateBuilder GetObjectTemplateBuilder(

v8::Isolate* isolate) override;

const char* GetTypeName() override;

// disable copy

Debugger(const Debugger&) = delete;

Debugger& operator=(const Debugger&) = delete;

protected:

Debugger(v8::Isolate* isolate, content::WebContents* web_contents);

~Debugger() override;

// content::DevToolsAgentHostClient:

void AgentHostClosed(content::DevToolsAgentHost* agent_host) override;

void DispatchProtocolMessage(content::DevToolsAgentHost* agent_host,

base::span<const uint8_t> message) override;

// content::WebContentsObserver:

void RenderFrameHostChanged(content::RenderFrameHost* old_rfh,

content::RenderFrameHost* new_rfh) override;

private:

using PendingRequestMap =

std::map<int, gin_helper::Promise<base::Value::Dict>>;

void Attach(gin::Arguments* args);

bool IsAttached();

void Detach();

v8::Local<v8::Promise> SendCommand(gin::Arguments* args);

void ClearPendingRequests();

content::WebContents* web_contents_; // Weak Reference.

scoped_refptr<content::DevToolsAgentHost> agent_host_;

PendingRequestMap pending_requests_;

int previous_request_id_ = 0;