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/*  Project nGenEx
    Destroyer Studios LLC
    Copyright © 1997-2006. All Rights Reserved.

    SUBSYSTEM:    nGenEx.lib
    FILE:         WebBrowser.cpp
    AUTHOR:       John DiCamillo


    OVERVIEW
    ========
    Helper class to find and launch user's default web browser
*/

#include "MemDebug.h"
#include "WebBrowser.h"

// +--------------------------------------------------------------------+

WebBrowser::WebBrowser()
{
   FindDefaultBrowser();
   FindOpenCommand();
}

WebBrowser::~WebBrowser()
{
}

// +--------------------------------------------------------------------+


void
WebBrowser::OpenURL(const char* url)
{
   if (url) {
      char cmdline[256];

      if (command.contains("%1")) {
         strcpy(cmdline, command.replace("%1", url).data());
      }
      else {
         strcpy(cmdline, Text(command + " " + url).data());
      }

      STARTUPINFO s;
      ZeroMemory(&s, sizeof(s));
      s.cb = sizeof(s);

      PROCESS_INFORMATION pi;
      ZeroMemory(&pi, sizeof(pi));

      if (CreateProcess(NULL, cmdline, 0, 0, 0, 0, 0, 0, &s, &pi)) {
         CloseHandle(pi.hProcess);
         CloseHandle(pi.hThread);
      }
      else {
         ::Print("Unable to launch web browser for url '%s'\n", url);
      }
   }
}

// +--------------------------------------------------------------------+

void 
WebBrowser::FindDefaultBrowser()
{
   HKEY  hkey;
   char  value[256] = "";
   DWORD dwSize;

   ZeroMemory(value, 256);

   if (RegOpenKeyEx(HKEY_CLASSES_ROOT,
                    ".html",
                    0,
                    KEY_READ,
                    &hkey) == ERROR_SUCCESS) {

      dwSize = 256;
      RegQueryValueEx(hkey,
                      "",
                      NULL,
                      NULL,
                      (LPBYTE) value,
                      &dwSize);

      RegCloseKey(hkey);

      if (dwSize > 0) {
         ::Print("Default Web Browser: %s\n", value);
         browser = value;
      }
   }
}

// +--------------------------------------------------------------------+

void
WebBrowser::FindOpenCommand()
{
   HKEY  hkey;
   char  value[256] = "";
   DWORD dwSize;

   ZeroMemory(value, 256);

   if (RegOpenKeyEx(HKEY_CLASSES_ROOT,
                    browser + "\\shell\\open\\command",
                    0,
                    KEY_READ,
                    &hkey) == ERROR_SUCCESS) {

      dwSize = 256;
      RegQueryValueEx(hkey,
                      "",
                      NULL,
                      NULL,
                      (LPBYTE) value,
                      &dwSize);

      RegCloseKey(hkey);

      if (dwSize > 0) {
         ::Print("Browser Shell Open Command: %s\n", value);
         command = value;
      }
   }
}

// +--------------------------------------------------------------------+