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#ifndef CHROME_BROWSER_DEBUGGER_DEBUGGER_IO_H__
#define CHROME_BROWSER_DEBUGGER_DEBUGGER_IO_H__

#include "base/basictypes.h"
#include "base/ref_counted.h"

class DebuggerShell;

class DebuggerInputOutput: public base::RefCountedThreadSafe<DebuggerInputOutput> {
public:
  DebuggerInputOutput() {}
  virtual ~DebuggerInputOutput() {}

  // Called when Debugger is ready to begin.
  virtual void Start(DebuggerShell* debugger) { debugger_ = debugger; }

  // Called when Debugger is shutting down
  virtual void Stop() {}

  // Outputs a string to the connection.
  virtual void Output(const std::string& out) = 0;
  virtual void Output(const std::wstring& out) = 0;
  virtual void OutputLine(const std::string& out) = 0;
  virtual void OutputLine(const std::wstring& out) = 0;
  virtual void OutputPrompt(const std::string& prompt) = 0;
  virtual void OutputPrompt(const std::wstring& prompt) = 0;

  // called by debugger debugger - ready is false when a command has just been
  // entered and true when a response to that command has been received
  virtual void SetDebuggerReady(bool ready) {}
  // called by debugger debugger - brk is false when the web page being debugged
  // is running, and true when the page is stopped at a breakpoint
  virtual void SetDebuggerBreak(bool brk) {}

protected:
  DebuggerShell* debugger_;

private:

  DISALLOW_EVIL_CONSTRUCTORS(DebuggerInputOutput);
};

#endif // CHROME_BROWSER_DEBUGGER_DEBUGGER_IO_H__