dom/html/HTMLDialogElement.h

   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 #ifndef HTMLDialogElement_h
   8 #define HTMLDialogElement_h
   9
  10 #include "mozilla/AsyncEventDispatcher.h"
  11 #include "mozilla/Attributes.h"
  12 #include "nsGenericHTMLElement.h"
  13 #include "nsGkAtoms.h"
  14
  15 namespace mozilla::dom {
  16
  17 class HTMLDialogElement final : public nsGenericHTMLElement {
  18  public:
  19   explicit HTMLDialogElement(
  20       already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
  21       : nsGenericHTMLElement(std::move(aNodeInfo)),
  22         mPreviouslyFocusedElement(nullptr) {}
  23
  24   NS_IMPL_FROMNODE_HTML_WITH_TAG(HTMLDialogElement, dialog)
  25
  26   nsresult Clone(dom::NodeInfo* aNodeInfo, nsINode** aResult) const override;
  27
  28   bool Open() const { return GetBoolAttr(nsGkAtoms::open); }
  29   void SetOpen(bool aOpen, ErrorResult& aError) {
  30     SetHTMLBoolAttr(nsGkAtoms::open, aOpen, aError);
  31   }
  32
  33   void GetReturnValue(nsAString& aReturnValue) { aReturnValue = mReturnValue; }
  34   void SetReturnValue(const nsAString& aReturnValue) {
  35     mReturnValue = aReturnValue;
  36   }
  37
  38   void UnbindFromTree(bool aNullParent = true) override;
  39
  40   void Close(const mozilla::dom::Optional<nsAString>& aReturnValue);
  41   void Show(ErrorResult& aError);
  42   void ShowModal(ErrorResult& aError);
  43
  44   bool IsInTopLayer() const;
  45   void QueueCancelDialog();
  46   void RunCancelDialogSteps();
  47
  48   MOZ_CAN_RUN_SCRIPT_BOUNDARY void FocusDialog();
  49
  50   int32_t TabIndexDefault() override;
  51
  52   nsString mReturnValue;
  53
  54  protected:
  55   virtual ~HTMLDialogElement();
  56   JSObject* WrapNode(JSContext* aCx,
  57                      JS::Handle<JSObject*> aGivenProto) override;
  58
  59  private:
  60   void AddToTopLayerIfNeeded();
  61   void RemoveFromTopLayerIfNeeded();
  62   void StorePreviouslyFocusedElement();
  63
  64   nsWeakPtr mPreviouslyFocusedElement;
  65 };
  66
  67 }  // namespace mozilla::dom
  68
  69 #endif