dom/html/RadioNodeList.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "mozilla/dom/RadioNodeList.h"
   8
   9 #include "mozilla/dom/BindingUtils.h"
  10 #include "mozilla/dom/RadioNodeListBinding.h"
  11 #include "js/TypeDecls.h"
  12
  13 #include "HTMLInputElement.h"
  14
  15 namespace mozilla::dom {
  16
  17 /* virtual */
  18 JSObject* RadioNodeList::WrapObject(JSContext* aCx,
  19                                     JS::Handle<JSObject*> aGivenProto) {
  20   return RadioNodeList_Binding::Wrap(aCx, this, aGivenProto);
  21 }
  22
  23 HTMLInputElement* GetAsRadio(nsIContent* node) {
  24   auto* el = HTMLInputElement::FromNode(node);
  25   if (el && el->ControlType() == FormControlType::InputRadio) {
  26     return el;
  27   }
  28   return nullptr;
  29 }
  30
  31 void RadioNodeList::GetValue(nsString& retval, CallerType aCallerType) {
  32   for (uint32_t i = 0; i < Length(); i++) {
  33     HTMLInputElement* maybeRadio = GetAsRadio(Item(i));
  34     if (maybeRadio && maybeRadio->Checked()) {
  35       maybeRadio->GetValue(retval, aCallerType);
  36       return;
  37     }
  38   }
  39   retval.Truncate();
  40 }
  41
  42 void RadioNodeList::SetValue(const nsAString& value, CallerType aCallerType) {
  43   for (uint32_t i = 0; i < Length(); i++) {
  44     HTMLInputElement* maybeRadio = GetAsRadio(Item(i));
  45     if (!maybeRadio) {
  46       continue;
  47     }
  48
  49     nsString curval = nsString();
  50     maybeRadio->GetValue(curval, aCallerType);
  51     if (curval.Equals(value)) {
  52       maybeRadio->SetChecked(true);
  53       return;
  54     }
  55   }
  56 }
  57
  58 NS_IMPL_ISUPPORTS_INHERITED(RadioNodeList, nsSimpleContentList, RadioNodeList)
  59
  60 }  // namespace mozilla::dom