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 {
  16 namespace dom {
  17
  18 /* virtual */
  19 JSObject* RadioNodeList::WrapObject(JSContext* aCx,
  20                                     JS::Handle<JSObject*> aGivenProto) {
  21   return RadioNodeList_Binding::Wrap(aCx, this, aGivenProto);
  22 }
  23
  24 HTMLInputElement* GetAsRadio(nsIContent* node) {
  25   HTMLInputElement* el = HTMLInputElement::FromNode(node);
  26   if (el && el->ControlType() == NS_FORM_INPUT_RADIO) {
  27     return el;
  28   }
  29   return nullptr;
  30 }
  31
  32 void RadioNodeList::GetValue(nsString& retval, CallerType aCallerType) {
  33   for (uint32_t i = 0; i < Length(); i++) {
  34     HTMLInputElement* maybeRadio = GetAsRadio(Item(i));
  35     if (maybeRadio && maybeRadio->Checked()) {
  36       maybeRadio->GetValue(retval, aCallerType);
  37       return;
  38     }
  39   }
  40   retval.Truncate();
  41 }
  42
  43 void RadioNodeList::SetValue(const nsAString& value, CallerType aCallerType) {
  44   for (uint32_t i = 0; i < Length(); i++) {
  45     HTMLInputElement* maybeRadio = GetAsRadio(Item(i));
  46     if (!maybeRadio) {
  47       continue;
  48     }
  49
  50     nsString curval = nsString();
  51     maybeRadio->GetValue(curval, aCallerType);
  52     if (curval.Equals(value)) {
  53       maybeRadio->SetChecked(true);
  54       return;
  55     }
  56   }
  57 }
  58
  59 NS_IMPL_ISUPPORTS_INHERITED(RadioNodeList, nsSimpleContentList, RadioNodeList)
  60
  61 }  // namespace dom
  62 }  // namespace mozilla