httpform.cxx

pwlib源码库

void PHTTPIntegerField::SaveToConfig(PConfig & cfg) const
{
  PString section, key;
  switch (SplitConfigKey(fullName, section, key)) {
    case 1 :
      cfg.SetInteger(key, value);
      break;
    case 2 :
      cfg.SetInteger(section, key, value);
  }
}


BOOL PHTTPIntegerField::Validated(const PString & newVal, PStringStream & msg) const
{
  int val = newVal.AsInteger();
  if (val >= low && val <= high)
    return TRUE;

  msg << "The field \"" << GetName() << "\" should be between "
      << low << " and " << high << ".<BR>";
  return FALSE;
}


//////////////////////////////////////////////////////////////////////////////
// PHTTPBooleanField

PHTTPBooleanField::PHTTPBooleanField(const char * name,
                                     BOOL initVal,
                                   const char * help)
  : PHTTPField(name, NULL, help)
{
  value = initialValue = initVal;
}


PHTTPBooleanField::PHTTPBooleanField(const char * name,
                                     const char * title,
                                     BOOL initVal,
                                     const char * help)
  : PHTTPField(name, title, help)
{
  value = initialValue = initVal;
}


PHTTPField * PHTTPBooleanField::NewField() const
{
  return new PHTTPBooleanField(baseName, title, initialValue, help);
}


void PHTTPBooleanField::GetHTMLTag(PHTML & html) const
{
  html << PHTML::HiddenField(fullName, "FALSE")
       << PHTML::CheckBox(fullName, value ? PHTML::Checked : PHTML::UnChecked);
}


static void SpliceChecked(PString & text, BOOL value)
{
  PINDEX pos = text.Find("checked");
  if (value) {
    if (pos == P_MAX_INDEX)
      text.Splice(" checked", 6, 0);
  }
  else {
    if (pos != P_MAX_INDEX) {
      PINDEX len = 7;
      if (text[pos-1] == ' ') {
        pos--;
        len++;
      }
      text.Delete(pos, len);
    }
  }
}


PString PHTTPBooleanField::GetHTMLInput(const PString & input) const
{
  static PRegularExpression checkboxRegEx("type[ \t\r\n]*=[ \t\r\n]*\"?checkbox\"?",
                                          PRegularExpression::Extended|PRegularExpression::IgnoreCase);
  if (input.FindRegEx(checkboxRegEx) != P_MAX_INDEX) {
    PCaselessString text;
    PINDEX before, after;
    if (FindInputValue(input, before, after)) 
      text = input(0, before) + "TRUE" + input.Mid(after);
    else
      text = "<input value=\"TRUE\"" + input.Mid(6);
    SpliceChecked(text, value);
    return "<input type=hidden name=\"" + fullName + "\">" + text;
  }

  static PRegularExpression radioRegEx("type[ \t\r\n]*=[ \t\r\n]*\"?radio\"?",
                                       PRegularExpression::Extended|PRegularExpression::IgnoreCase);
  if (input.FindRegEx(radioRegEx) != P_MAX_INDEX) {
    PINDEX before, after;
    if (FindInputValue(input, before, after)) {
      PCaselessString text = input;
      PString val = input(before+1, after-1);
      SpliceChecked(text, (value && (val *= "TRUE")) || (!value && (val *= "FALSE")));
      return text;
    }
    return input;
  }

  return PHTTPField::GetHTMLInput(input);
}


void PHTTPBooleanField::SetValue(const PString & val)
{
  value = toupper(val[0]) == 'T' || toupper(val[0]) == 'y' ||
          val.AsInteger() != 0 || val.Find("TRUE") != P_MAX_INDEX;
}


PString PHTTPBooleanField::GetValue(BOOL dflt) const
{
  return ((dflt ? initialValue : value) ? "True" : "False");
}


void PHTTPBooleanField::LoadFromConfig(PConfig & cfg)
{
  PString section, key;
  switch (SplitConfigKey(fullName, section, key)) {
    case 1 :
      value = cfg.GetBoolean(key, initialValue);
      break;
    case 2 :
      value = cfg.GetBoolean(section, key, initialValue);
  }
}


void PHTTPBooleanField::SaveToConfig(PConfig & cfg) const
{
  PString section, key;
  switch (SplitConfigKey(fullName, section, key)) {
    case 1 :
      cfg.SetBoolean(key, value);
      break;
    case 2 :
      cfg.SetBoolean(section, key, value);
  }
}


//////////////////////////////////////////////////////////////////////////////
// PHTTPRadioField

PHTTPRadioField::PHTTPRadioField(const char * name,
                                 const PStringArray & valueArray,
                                 PINDEX initVal,
                                 const char * help)
  : PHTTPField(name, NULL, help),
    values(valueArray),
    titles(valueArray),
    value(valueArray[initVal]),
    initialValue(value)
{
}


PHTTPRadioField::PHTTPRadioField(const char * name,
                                 const PStringArray & valueArray,
                                 const PStringArray & titleArray,
                                 PINDEX initVal,
                                 const char * help)
  : PHTTPField(name, NULL, help),
    values(valueArray),
    titles(titleArray),
    value(valueArray[initVal]),
    initialValue(value)
{
}


PHTTPRadioField::PHTTPRadioField(const char * name,
                                 PINDEX count,
                                 const char * const * valueStrings,
                                 PINDEX initVal,
                                 const char * help)
  : PHTTPField(name, NULL, help),
    values(count, valueStrings),
    titles(count, valueStrings),
    value(valueStrings[initVal]),
    initialValue(value)
{
}


PHTTPRadioField::PHTTPRadioField(const char * name,
                                 PINDEX count,
                                 const char * const * valueStrings,
                                 const char * const * titleStrings,
                                 PINDEX initVal,
                                 const char * help)
  : PHTTPField(name, NULL, help),
    values(count, valueStrings),
    titles(count, titleStrings),
    value(valueStrings[initVal]),
    initialValue(value)
{
}


PHTTPRadioField::PHTTPRadioField(const char * name,
                                 const char * groupTitle,
                                 const PStringArray & valueArray,
                                 PINDEX initVal,
                                 const char * help)
  : PHTTPField(name, groupTitle, help),
    values(valueArray),
    titles(valueArray),
    value(valueArray[initVal]),
    initialValue(value)
{
}


PHTTPRadioField::PHTTPRadioField(const char * name,
                                 const char * groupTitle,
                                 const PStringArray & valueArray,
                                 const PStringArray & titleArray,
                                 PINDEX initVal,
                                 const char * help)
  : PHTTPField(name, groupTitle, help),
    values(valueArray),
    titles(titleArray),
    value(valueArray[initVal]),
    initialValue(value)
{
}


PHTTPRadioField::PHTTPRadioField(const char * name,
                                 const char * groupTitle,
                                 PINDEX count,
                                 const char * const * valueStrings,
                                 PINDEX initVal,
                                 const char * help)
  : PHTTPField(name, groupTitle, help),
    values(count, valueStrings),
    titles(count, valueStrings),
    value(valueStrings[initVal]),
    initialValue(value)
{
}


PHTTPRadioField::PHTTPRadioField(const char * name,
                                 const char * groupTitle,
                                 PINDEX count,
                                 const char * const * valueStrings,
                                 const char * const * titleStrings,
                                 PINDEX initVal,
                                 const char * help)
  : PHTTPField(name, groupTitle, help),
    values(count, valueStrings),
    titles(count, titleStrings),
    value(valueStrings[initVal]),
    initialValue(value)
{
}


PHTTPField * PHTTPRadioField::NewField() const
{
  return new PHTTPRadioField(*this);
}


void PHTTPRadioField::GetHTMLTag(PHTML & html) const
{
  for (PINDEX i = 0; i < values.GetSize(); i++)
    html << PHTML::RadioButton(fullName, values[i],
                        values[i] == value ? PHTML::Checked : PHTML::UnChecked)
         << titles[i]
         << PHTML::BreakLine();
}


PString PHTTPRadioField::GetHTMLInput(const PString & input) const
{
  PString inval;
  PINDEX before, after;
  if (FindInputValue(input, before, after))
    inval = input(before+1, after-1);
  else
    inval = baseName;

  if (inval != value)
    return input;

  return "<input checked" + input.Mid(6);
}


PString PHTTPRadioField::GetValue(BOOL dflt) const
{
  if (dflt)
    return initialValue;
  else
    return value;
}


void PHTTPRadioField::SetValue(const PString & newVal)
{
  value = newVal;
}


//////////////////////////////////////////////////////////////////////////////
// PHTTPSelectField

PHTTPSelectField::PHTTPSelectField(const char * name,
                                   const PStringArray & valueArray,
                                   PINDEX initVal,
                                   const char * help)
  : PHTTPField(name, NULL, help),
    values(valueArray)
{
  initialValue = initVal;
  if (initVal < values.GetSize())
    value = values[initVal];
}


PHTTPSelectField::PHTTPSelectField(const char * name,
                                   PINDEX count,
                                   const char * const * valueStrings,
                                   PINDEX initVal,
                                   const char * help)
  : PHTTPField(name, NULL, help),
    values(count, valueStrings)
{
  initialValue = initVal;
  if (initVal < count)
    value = values[initVal];
}


PHTTPSelectField::PHTTPSelectField(const char * name,
                                   const char * title,
                                   const PStringArray & valueArray,
                                   PINDEX initVal,
                                   const char * help)
  : PHTTPField(name, title, help),
    values(valueArray)
{
  initialValue = initVal;
  if (initVal < values.GetSize())
    value = values[initVal];
}


PHTTPSelectField::PHTTPSelectField(const char * name,
                                   const char * title,
                                   PINDEX count,
                                   const char * const * valueStrings,
                                   PINDEX initVal,
                                   const char * help)
  : PHTTPField(name, title, help),
    values(count, valueStrings)
{
  initialValue = initVal;
  if (initVal < values.GetSize())
    value = values[initVal];
}


PHTTPField * PHTTPSelectField::NewField() const
{
  return new PHTTPSelectField(baseName, title, values, initialValue, help);
}


void PHTTPSelectField::GetHTMLTag(PHTML & html) const
{
  html << PHTML::Select(fullName);
  for (PINDEX i = 0; i < values.GetSize(); i++)
    html << PHTML::Option(values[i] == value ? PHTML::Selected : PHTML::NotSelected)
         << values[i];
  html << PHTML::Select();
}


PString PHTTPSelectField::GetValue(BOOL dflt) const
{
  if (dflt)
    if (initialValue < values.GetSize())
      return values[initialValue];
    else
      return PString();
  else
    return value;
}


void PHTTPSelectField::SetValue(const PString & newVal)
{
  value = newVal;
}



//////////////////////////////////////////////////////////////////////////////
// PHTTPForm

PHTTPForm::PHTTPForm(const PURL & url)
  : PHTTPString(url),
    fields("")
{
}

PHTTPForm::PHTTPForm(const PURL & url, const PHTTPAuthority & auth)
  : PHTTPString(url, auth),
    fields("")
{
}

PHTTPForm::PHTTPForm(const PURL & url, const PString & html)
  : PHTTPString(url, html),
    fields("")
{
}

PHTTPForm::PHTTPForm(const PURL & url,
                     const PString & html,
                     const PHTTPAuthority & auth)
  : PHTTPString(url, html, auth),
    fields("")
{
}


static BOOL FindSpliceAccepted(const PString & text,
                              PINDEX offset,
                              PINDEX & pos,
                              PINDEX & len,