al_HtmlInterfaceServer.hpp

#ifndef INCLUDE_AL_HTMLINTERFACESERVER_HPP
#define INCLUDE_AL_HTMLINTERFACESERVER_HPP
/*  Allocore --
        Multimedia / virtual environment application class library
 
        Copyright (C) 2009. AlloSphere Research Group, Media Arts & Technology,
   UCSB. Copyright (C) 2012. The Regents of the University of California. All
   rights reserved.
 
        Redistribution and use in source and binary forms, with or without
        modification, are permitted provided that the following conditions are
   met:
 
                Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
 
                Redistributions in binary form must reproduce the above
   copyright notice, this list of conditions and the following disclaimer in the
                documentation and/or other materials provided with the
   distribution.
 
                Neither the name of the University of California nor the names
   of its contributors may be used to endorse or promote products derived from
                this software without specific prior written permission.
 
        THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
   IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
   OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
   OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
   ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 
        File description:
        Serve an HTML GUI to connect to a ParameterServer and PresetServer
    using interface.js
 
        File author(s):
        2016 Andres Cabrera andres@mat.ucsb.edu
*/
 
#include <fstream>
#include <iostream>
#include <string>
 
#ifndef AL_WINDOWS
#include <signal.h>
#include <stdio.h>
#include <sys/wait.h>
#include <unistd.h>
 
#define READ 0
#define WRITE 1
#else
 
#endif
 
#include "al/ui/al_Parameter.hpp"
#include "al/ui/al_PresetHandler.hpp"
#include "al/ui/al_PresetServer.hpp"
 
namespace al {
class HtmlInterfaceServer {
 public:
  HtmlInterfaceServer(std::string pathToInterfaceJs = "../interface.js",
                      bool autorun = true);
  ~HtmlInterfaceServer();
 
  HtmlInterfaceServer &addParameter(Parameter &param,
                                    std::string interfaceName = "");
  HtmlInterfaceServer &addParameterServer(ParameterServer &paramServer,
                                          std::string interfaceName = "");
  HtmlInterfaceServer &addPresetServer(PresetServer &presetServer,
                                       std::string interfaceName = "");
 
  HtmlInterfaceServer &operator<<(Parameter &param) {
    return this->addParameter(param);
  }
  HtmlInterfaceServer &operator<<(ParameterServer &paramServer) {
    return this->addParameterServer(paramServer);
  }
  HtmlInterfaceServer &operator<<(PresetServer &presetServer) {
    return this->addPresetServer(presetServer);
  }
 
  void runInterfaceJs();  // Runs interface.js. Call only if autorun set to
                          // false in the constructor
 
 private:
  void writeHtmlFile(std::vector<Parameter *> parameters,
                     std::string interfaceName = "");
  void writeHtmlFile(PresetServer &presetServer, std::string interfaceName = "",
                     int numPresets = -1);
 
  std::string mRootPath;
  std::string mNodeJsPath;
#ifndef AL_WINDOWS
  pid_t mPid;
#else
  // TODO: Windows equivalent
#endif
  int p_stdin[2], p_stdout[2];
 
  int mInterfaceSendPort;  // Interface.js sends OSC on this port
  int mInterfaceRecvPort;  // Interface.js receives OSC on this port
 
  std::vector<Parameter *> mParameters;
};
 
}  // namespace al
 
#endif  // INCLUDE_AL_HTMLINTERFACESERVER_HPP