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   virtual void DestroyFrom(nsIFrame* aDestructRoot,
  32                            PostDestroyData& aPostDestroyData) override;
  33
  34   virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
  35                                 const nsDisplayListSet& aLists) override;
  36
  37   virtual void Reflow(nsPresContext* aCX, ReflowOutput& aDesiredSize,
  38                       const ReflowInput& aReflowInput,
  39                       nsReflowStatus& aStatus) override;
  40
  41 #ifdef DEBUG_FRAME_DUMP
  42   virtual nsresult GetFrameName(nsAString& aResult) const override {
  43     return MakeFrameName(NS_LITERAL_STRING("Progress"), aResult);
  44   }
  45 #endif
  46
  47   // nsIAnonymousContentCreator
  48   virtual nsresult CreateAnonymousContent(
  49       nsTArray<ContentInfo>& aElements) override;
  50   virtual void AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
  51                                         uint32_t aFilter) override;
  52
  53   virtual nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
  54                                     int32_t aModType) override;
  55
  56   virtual mozilla::LogicalSize ComputeAutoSize(
  57       gfxContext* aRenderingContext, mozilla::WritingMode aWM,
  58       const mozilla::LogicalSize& aCBSize, nscoord aAvailableISize,
  59       const mozilla::LogicalSize& aMargin, const mozilla::LogicalSize& aBorder,
  60       const mozilla::LogicalSize& aPadding, ComputeSizeFlags aFlags) override;
  61
  62   virtual nscoord GetMinISize(gfxContext* aRenderingContext) override;
  63   virtual nscoord GetPrefISize(gfxContext* aRenderingContext) override;
  64
  65   virtual bool IsFrameOfType(uint32_t aFlags) const override {
  66     return nsContainerFrame::IsFrameOfType(
  67         aFlags & ~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock));
  68   }
  69
  70   /**
  71    * Returns whether the frame and its child should use the native style.
  72    */
  73   bool ShouldUseNativeStyle() const;
  74
  75  protected:
  76   // Helper function to reflow a child frame.
  77   void ReflowChildFrame(nsIFrame* aChild, nsPresContext* aPresContext,
  78                         const ReflowInput& aReflowInput,
  79                         nsReflowStatus& aStatus);
  80
  81   /**
  82    * The div used to show the progress bar.
  83    * @see nsProgressFrame::CreateAnonymousContent
  84    */
  85   nsCOMPtr<Element> mBarDiv;
  86 };
  87
  88 #endif