layout/forms/nsSearchControlFrame.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 nsSearchControlFrame_h__
   8 #define nsSearchControlFrame_h__
   9
  10 #include "mozilla/Attributes.h"
  11 #include "nsTextControlFrame.h"
  12 #include "nsIAnonymousContentCreator.h"
  13 #include "mozilla/RefPtr.h"
  14
  15 class nsITextControlFrame;
  16 class nsPresContext;
  17
  18 namespace mozilla {
  19 enum class PseudoStyleType : uint8_t;
  20 class PresShell;
  21 namespace dom {
  22 class Element;
  23 }  // namespace dom
  24 }  // namespace mozilla
  25
  26 /**
  27  * This frame type is used for <input type=search>.
  28  */
  29 class nsSearchControlFrame final : public nsTextControlFrame {
  30   friend nsIFrame* NS_NewSearchControlFrame(mozilla::PresShell* aPresShell,
  31                                             ComputedStyle* aStyle);
  32
  33   using PseudoStyleType = mozilla::PseudoStyleType;
  34   using Element = mozilla::dom::Element;
  35
  36   explicit nsSearchControlFrame(ComputedStyle* aStyle,
  37                                 nsPresContext* aPresContext);
  38
  39  public:
  40   NS_DECL_QUERYFRAME
  41   NS_DECL_FRAMEARENA_HELPERS(nsSearchControlFrame)
  42
  43   void Destroy(DestroyContext&) override;
  44
  45   // nsIAnonymousContentCreator
  46   nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements) override;
  47   void AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
  48                                 uint32_t aFilter) override;
  49
  50 #ifdef DEBUG_FRAME_DUMP
  51   nsresult GetFrameName(nsAString& aResult) const override {
  52     return MakeFrameName(u"SearchControl"_ns, aResult);
  53   }
  54 #endif
  55
  56   Element* GetAnonClearButton() const { return mClearButton; }
  57
  58   /**
  59    * Update visbility of the clear button depending on the value
  60    */
  61   void UpdateClearButtonState();
  62
  63  private:
  64   // See nsSearchControlFrame::CreateAnonymousContent of a description of these
  65   RefPtr<Element> mClearButton;
  66 };
  67
  68 #endif  // nsSearchControlFrame_h__