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   typedef mozilla::PseudoStyleType PseudoStyleType;
  22   typedef mozilla::dom::Element Element;
  23
  24  public:
  25   NS_DECL_QUERYFRAME
  26   NS_DECL_FRAMEARENA_HELPERS(nsProgressFrame)
  27
  28   explicit nsProgressFrame(ComputedStyle* aStyle, nsPresContext* aPresContext);
  29   virtual ~nsProgressFrame();
  30
  31   void Destroy(DestroyContext&) override;
  32
  33   virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
  34                                 const nsDisplayListSet& aLists) override;
  35
  36   virtual void Reflow(nsPresContext* aCX, ReflowOutput& aDesiredSize,
  37                       const ReflowInput& aReflowInput,
  38                       nsReflowStatus& aStatus) override;
  39
  40 #ifdef DEBUG_FRAME_DUMP
  41   virtual nsresult GetFrameName(nsAString& aResult) const override {
  42     return MakeFrameName(u"Progress"_ns, aResult);
  43   }
  44 #endif
  45
  46   // nsIAnonymousContentCreator
  47   virtual nsresult CreateAnonymousContent(
  48       nsTArray<ContentInfo>& aElements) override;
  49   virtual void AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
  50                                         uint32_t aFilter) override;
  51
  52   virtual nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
  53                                     int32_t aModType) override;
  54
  55   virtual mozilla::LogicalSize ComputeAutoSize(
  56       gfxContext* aRenderingContext, mozilla::WritingMode aWM,
  57       const mozilla::LogicalSize& aCBSize, nscoord aAvailableISize,
  58       const mozilla::LogicalSize& aMargin,
  59       const mozilla::LogicalSize& aBorderPadding,
  60       const mozilla::StyleSizeOverrides& aSizeOverrides,
  61       mozilla::ComputeSizeFlags aFlags) override;
  62
  63   virtual nscoord GetMinISize(gfxContext* aRenderingContext) override;
  64   virtual nscoord GetPrefISize(gfxContext* aRenderingContext) override;
  65
  66   /**
  67    * Returns whether the frame and its child should use the native style.
  68    */
  69   bool ShouldUseNativeStyle() const;
  70
  71  protected:
  72   // Helper function to reflow a child frame.
  73   void ReflowChildFrame(nsIFrame* aChild, nsPresContext* aPresContext,
  74                         const ReflowInput& aReflowInput,
  75                         nsReflowStatus& aStatus);
  76
  77   /**
  78    * The div used to show the progress bar.
  79    * @see nsProgressFrame::CreateAnonymousContent
  80    */
  81   nsCOMPtr<Element> mBarDiv;
  82 };
  83
  84 #endif