layout/forms/nsProgressFrame.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 nsProgressFrame_h___
   8 #define nsProgressFrame_h___
   9
  10 #include "mozilla/Attributes.h"
  11 #include "nsContainerFrame.h"
  12 #include "nsIAnonymousContentCreator.h"
  13 #include "nsCOMPtr.h"
  14
  15 namespace mozilla {
  16 enum class PseudoStyleType : uint8_t;
  17 }  // namespace mozilla
  18
  19 class nsProgressFrame final : public nsContainerFrame,
  20                               public nsIAnonymousContentCreator {
  21   using Element = mozilla::dom::Element;
  22
  23  public:
  24   NS_DECL_QUERYFRAME
  25   NS_DECL_FRAMEARENA_HELPERS(nsProgressFrame)
  26
  27   explicit nsProgressFrame(ComputedStyle* aStyle, nsPresContext* aPresContext);
  28   virtual ~nsProgressFrame();
  29
  30   void Destroy(DestroyContext&) override;
  31
  32   void BuildDisplayList(nsDisplayListBuilder* aBuilder,
  33                         const nsDisplayListSet& aLists) override;
  34
  35   void Reflow(nsPresContext*, ReflowOutput&, const ReflowInput&,
  36               nsReflowStatus&) override;
  37
  38 #ifdef DEBUG_FRAME_DUMP
  39   nsresult GetFrameName(nsAString& aResult) const override {
  40     return MakeFrameName(u"Progress"_ns, aResult);
  41   }
  42 #endif
  43
  44   // nsIAnonymousContentCreator
  45   nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements) override;
  46   void AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
  47                                 uint32_t aFilter) override;
  48
  49   nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
  50                             int32_t aModType) override;
  51
  52   nscoord GetMinISize(gfxContext* aRenderingContext) override;
  53   nscoord GetPrefISize(gfxContext* aRenderingContext) override;
  54
  55   /**
  56    * Returns whether the frame and its child should use the native style.
  57    */
  58   bool ShouldUseNativeStyle() const;
  59
  60  protected:
  61   // Helper function to reflow a child frame.
  62   void ReflowChildFrame(nsIFrame* aChild, nsPresContext* aPresContext,
  63                         const ReflowInput& aReflowInput,
  64                         const mozilla::LogicalSize& aParentContentBoxSize,
  65                         nsReflowStatus& aStatus);
  66
  67   /**
  68    * The div used to show the progress bar.
  69    * @see nsProgressFrame::CreateAnonymousContent
  70    */
  71   nsCOMPtr<Element> mBarDiv;
  72 };
  73
  74 #endif